CN115072125B

CN115072125B - Pallet box

Info

Publication number: CN115072125B
Application number: CN202210904176.4A
Authority: CN
Inventors: 王文博; 苏继军; 鲁亮; 孙士国; 倪建生
Original assignee: Dalian CIMC Logistics Equipment Co Ltd
Current assignee: Dalian CIMC Logistics Equipment Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2025-09-12
Anticipated expiration: 2042-07-29
Also published as: CN115072125A

Abstract

The present application discloses a pallet box. The pallet box includes a chassis and a wall body; the chassis includes a load-bearing portion and a support member; the support member is located below the load-bearing portion, and the two support members are arranged in parallel; the bottom end of the wall body has two wall pivot axes, which protrude outward in opposite directions. The wall body is pivotally connected to the support member about the wall pivot axes between an upright position and a horizontal position, and is movably connected to the support member via the first end of the support member along the length direction of the support member between the horizontal position and the storage position. According to the pallet box of the present application, when the pallet box is in use, the end walls and side walls can be stored in the chassis for unloading, so that the end walls and side walls will not be lost.

Description

Pallet box

Technical Field

The present application relates to containers, and in particular to pallet boxes.

Background

The existing pallet box comprises a chassis, side walls and end walls. The side and end walls are detachably pivotally connected to the chassis. The side walls and end walls are stacked above the chassis with the tray box in a collapsed condition. Thus, during use of the pallet bin, the side or end walls may be removed and the removed side or end walls may not be at the chassis. This may result in the loss of the detached end wall or side wall.

To this end, the present application provides a pallet magazine to at least partially solve the above-mentioned problems.

Disclosure of Invention

In the summary, a series of concepts in simplified form are introduced, which will be further described in detail in the detailed description. The summary of the application is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above technical problems, the present application provides a pallet box, including:

Chassis, the chassis includes:

a carrying part, and

A support member below the bearing portion, two support members disposed in parallel, and

The wall body, the bottom of wall body has two wall body pivot axles, and two wall body pivot axles outwards bulge in opposite directions, and the wall body is around the pivot axle of wall body pivotally connected to the support member between upright position and flat position, and is overlapped to the support member along the length direction of support member through the first end of support member between flat position and storage position movably.

According to the pallet box of the application, the end walls and the side walls can be received in the chassis for unloading when the pallet box is in use, so that the end walls and the side walls are not lost.

Optionally, the wall body comprises a side wall and an end wall, the axis of the end wall pivot axis of the end wall being parallel to the first horizontal direction, the axis of the side wall pivot axis of the side wall being parallel to the second horizontal direction,

The support member includes side support members and end support members, and the length direction of side support members is parallel to first horizontal direction for supporting the lateral wall, and the length direction of end support members is parallel to second horizontal direction for supporting the end wall, along the direction of height of chassis, side support members and end support members set gradually.

Optionally, the side wall comprises a first side wall and a second side wall, the side support member comprises a first support member and a second support member which are arranged in sequence along the height direction of the chassis and are respectively used for supporting the first side wall and the second side wall, the first end of the first support member and the first end of the second support member are respectively positioned at two ends of the chassis along the first horizontal direction,

The end walls include a first end wall and a second end wall, and the end support members include a third support member and a fourth support member that are disposed in order along the height direction of the chassis, for supporting the first end wall and the second end wall, respectively, and a first end of the third support member and a first end of the fourth support member are located at both ends of the chassis in the second horizontal direction, respectively.

Optionally, the chassis is further provided with a positioning block fixedly connected to the supporting member and located at an end of the supporting member away from the first end for blocking the wall body located at the storage position.

Optionally, the chassis is further provided with a limiting stop, and the limiting stop is fixedly arranged at the first end to be used for blocking the wall body pivot shaft from leaving the supporting member.

Optionally, at least one of the two limit stops at the two support members for supporting one wall is detachably provided.

Optionally, the chassis further includes a limiting member and a limiting shaft, the limiting member is located above the supporting member, the limiting member is pivotally disposed between a limiting position and a leaving position by the limiting shaft, and in the case that the limiting member is located at the limiting position, a minimum dimension between an end of the limiting member far away from the first end and a bottom wall of the supporting member is smaller than a thickness of the wall body, so that the limiting member can block the wall body located at the storage position from moving toward the first end.

Optionally, the chassis further has a linkage member and a linkage shaft within the chassis, the linkage member being rotatably disposed between a stop position and a rest position by the linkage shaft,

In the case where one of the side walls is moved to the storage position, the linking member can be pushed to the stop position to enter above the support member bottom wall of the support member for supporting the other side wall, thereby enabling the linking member to block the other side wall located in the storage position, and/or

In the case where one of the end walls is moved to the storage position, the linking member can be pushed to the stop position to enter above the support member bottom wall of the support member for supporting the other end wall, thereby enabling the linking member to block the other end wall located at the storage position.

Optionally, the wall body has a guide surface, the guide surface is located at one side of the wall body lower beam, which is close to the wall body upper beam, and is connected to the wall body lower beam, one end of the guide surface, which is far away from the wall body upper beam, is flush with the inner surface of the box of the wall body, the guide surface is inclined to the height direction of the wall body, along the thickness direction of the wall body, one end of the guide surface, which is far away from the wall body upper beam, is closer to the inner side of the wall body than the other end of the guide surface, which is close to the wall body upper beam,

Under the condition that the wall body is located the storage position, along the width direction of the wall body, the guide surface is located spacing component department, and the wall body is by the storage position in-process of moving to the position of keeping flat, and the guide surface is used for the removal direction of spacing component to avoid spacing component to block the wall body underbeam.

Optionally, the chassis further comprises a fork lifting part, wherein the fork lifting part is positioned below the bearing part, a slideway interval is arranged between the fork lifting part and the bearing part, and the supporting member is positioned in the slideway interval.

Optionally, the corner of the chassis has a force transfer member, the force transfer member includes an upper force transfer portion, a horizontal force transfer portion, and a lower force transfer portion, the horizontal force transfer portion is horizontally disposed and is attached to a lower surface of a higher one of the side support member and the end support member, the upper force transfer portion and the lower force transfer portion are parallel to a height direction of the chassis and are connected to the horizontal force transfer portion, the upper force transfer portion is located at an outer side of the horizontal force transfer portion and is connected to the bearing portion, the lower force transfer portion is located at an outer side of the horizontal force transfer portion and is connected to the fork lift portion, and the lower force transfer portion is perpendicular to the upper force transfer portion.

Optionally, the corner of the bearing part is provided with a first stacking block, the corner of the fork lifting part is provided with a supporting leg, the upper force transmission part is connected to the frame of the bearing part and the first stacking block, and the lower force transmission part is connected to the supporting leg.

Optionally, the end wall has a second stacking block connected to an end post of the end wall, a portion of the second stacking block overlapping the first stacking block with the pallet bin in an assembled condition.

Optionally, the end wall further has an anti-expansion wall located inside a portion of the first stacking block when the pallet bin is in the assembled condition.

Optionally, the force-transmitting member has a long link plate avoiding groove, and the lower end of the end wall is positioned in the long link plate avoiding groove when the pallet box is in the assembled state.

Optionally, the tray box further includes a latch pin movably connected to the side wall in a height direction of the side wall, a side wall lower beam of the side wall has a first holding hole, a bearing part side beam of the bearing part has a second holding hole, and the latch pin can sequentially pass through the first holding hole and the second holding hole with the side wall in an upright position to hold the side wall in the upright position.

Optionally, the corner of the bearing part is provided with an avoiding part, and the side upright post of the side wall is positioned in the avoiding part under the condition that the tray box is in the assembled state.

Optionally, an end face of the side column of the side wall, which is far from the center of the side wall in the width direction of the side wall, is provided with a connecting hole, an end column of the end wall is provided with a connecting pin, the connecting pin protrudes out of the inner face of the end wall in the thickness direction of the end wall, and in the case that the tray box is in the assembled state, the connecting pin enters the connecting hole to block the end wall from moving up and down relative to the side wall.

Optionally, in the case that the pallet box is in the assembled state, the position height of the end wall upper beam of the end wall is higher than the position height of the side wall upper beam, and the top end of the end upright post of the end wall is provided with a third stacking block.

Drawings

In order that the advantages of the application will be readily understood, a more particular description of the application briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the application and are not therefore to be considered to be limiting of its scope, the application will be described and explained with additional specificity and detail through the use of the accompanying drawings.

Fig. 1 is a perspective view of one direction of a tray box according to a preferred embodiment of the present application, wherein the tray box is in an assembled state;

FIG. 2 is an enlarged schematic view of a portion of the tray box of FIG. 1 at A;

FIG. 3 is an enlarged schematic view of a portion of the tray box of FIG. 1 at B;

FIG. 4 is an enlarged schematic view of a portion of the tray box of FIG. 1 at C;

FIG. 5 is an enlarged schematic view of a portion of the tray box of FIG. 1 at D;

FIG. 6 is a schematic perspective view of the pallet magazine of FIG. 1 in another orientation, with the pallet magazine in an assembled state;

FIG. 7 is an enlarged schematic view of a portion of the tray box of FIG. 6 at E;

FIG. 8 is an enlarged schematic view of a portion of the tray box of FIG. 6 at F;

FIG. 9 is an enlarged schematic view of a portion of the tray box of FIG. 6 at G;

FIG. 10 is an enlarged partial schematic view of the tray box of FIG. 6 at H;

FIG. 11 is an enlarged schematic view of a portion of the pallet bin of FIG. 6 at I;

FIG. 12 is an enlarged schematic view of a portion of the pallet bin of FIG. 6 at J;

FIG. 13 is an enlarged schematic view of a portion of the tray box of FIG. 6 at K;

FIG. 14 is a schematic perspective view of the pallet magazine of FIG. 1 in another orientation, wherein the pallet magazine is in a stowed condition;

FIG. 15 is a perspective view of one orientation of the chassis of the pallet magazine of FIG. 1;

FIG. 16 is an enlarged schematic view of a portion of the tray box of FIG. 15 at L;

FIG. 17 is an enlarged schematic view of a portion of the tray box of FIG. 15 at M;

FIG. 18 is a perspective view of another orientation of the chassis of the pallet magazine of FIG. 1;

FIG. 19 is an enlarged partial schematic view of the tray box of FIG. 18 at N;

FIG. 20 is an enlarged fragmentary schematic view of the tray box chassis of FIG. 18 at O;

FIG. 21 is a schematic perspective view of another orientation of the chassis of the pallet bin of FIG. 1;

FIG. 22 is an enlarged partial schematic view of the tray box of FIG. 21 at P;

FIG. 23 is an enlarged schematic view of a portion of the tray box chassis of FIG. 21 at Q;

FIG. 24 is a schematic perspective view of another orientation of the chassis of the pallet magazine of FIG. 1;

FIG. 25 is an enlarged fragmentary schematic view of the tray case of FIG. 24 at R;

FIG. 26 is an enlarged schematic view of a portion of the tray box of FIG. 24 at S;

FIG. 27 is a schematic perspective view of a first side wall of the pallet bin of FIG. 1;

FIG. 28 is a schematic perspective view of a second side wall of the pallet bin of FIG. 1;

FIG. 29 is an enlarged fragmentary schematic view of a portion of a second side wall T of the tray box of FIG. 28;

FIG. 30 is an enlarged schematic view of a portion of a second side wall U of the tray box of FIG. 28;

FIG. 31 is a schematic perspective view of a first end wall of the tray box of FIG. 1;

FIG. 32 is a schematic perspective view of a second end wall of the tray box of FIG. 1;

FIG. 33 is an enlarged fragmentary schematic view at V of the second end wall of the tray box of FIG. 32;

FIG. 34 is an enlarged fragmentary schematic view at W of the second end wall of the tray box of FIG. 32;

FIG. 35 is a schematic perspective view of the pallet magazine of FIG. 1 in another orientation with the pallet magazine in a stowed condition showing the second end wall stowed within the chassis;

FIG. 36 is a schematic perspective view of the pallet magazine of FIG. 1 in another orientation with the pallet magazine in a stowed condition showing the end walls stowed within the chassis;

FIG. 37 is an enlarged schematic view of a portion of the tray box of FIG. 36 at X;

FIG. 38 is an enlarged partial schematic view at the stop member of another directional perspective view of the pallet magazine of FIG. 1, with the pallet magazine in a stowed condition showing the side walls stowed in the chassis, and

Fig. 39 is a perspective view of the pallet magazine of fig. 1 in another orientation, with the pallet magazine in a stowed condition, showing the side walls stowed within the chassis.

Description of the reference numerals

100 Chassis 110 bearing part

111 Cladding 112 bearing side beams

113 Bearing part end beam 114 first stacking block

115 Stacking block groove 116, bolt tube

117 Avoiding part 118 bearing part support plate

120 First support member 121 left support member

122 Right support member 123 support member bottom wall

124 Supporting member vertical wall 125 first fixed limit stop

126 First movable limit stop 127, upper stop wall

128 Vertical baffle wall 130 second support member

135, A second fixed limit stop 136, a second movable limit stop

140 Third support member 145 third fixed stop

146, Third movable limiting stopper 149, movable limiting stopper groove

150 Fourth supporting member 155 fourth fixed limit stop

156, A fourth movable limiting block 160 and a limiting assembly

161 Is spacing shaft 162 is spacing component

163, A lock stop limit end 164, and a lock stop operation end

165 Spacing side wall 166 spacing bottom wall

167:168:168:Connecting plate

170, Linkage assembly 171, linkage shaft

172: Linkage sleeve 173: linkage member

174 Hook plate bottom wall 175 hook plate vertical wall

176, Linkage connecting plate 180, force transmission piece

181 Horizontal force transmission part 182 upper force transmission part

183 Lower force-transmitting portion 184 corner wall

185 Limit table 186 first groove

187 Second groove 189 long connecting plate avoiding groove

190:191:Side beam of fork lifting part

192 Fork lift end beam 200 side wall

210 First side wall 220 second side wall

230 Side uprights 231 side wall pivot axes

232 Pivot shaft connection 233 side column through hole

234 Connecting hole 235 first side column

236 Second side column 240 side wall underbeam

250 Side vertical beam 260 side upper beam

300 End wall 310 first end wall

320 Second end wall 330 end post

331 End wall pivot axis 332 first long link plate

333 Second long connecting plate 334 expansion-proof retaining wall

335 Reinforcing plate 336 locking hole

337 End column stiffener 338 connecting pin

339 Third stacking block 340 end wall underbeam

350 End vertical beam 360 end wall upper beam

370 Second stacking block 410 front support seat of lock

420, Rear support base 430 of lock, locking rod

440, Lock handle 450, lock guard board

460 Lock handle fixing member 510, latch rod

511 Latch handle 520 latch seat

521 Latch handle positioning slot 530 latch spring

601 Positioning block 602 inclined guide

603, Pallet 604, bolt

605:Leg 606:lock beam

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art that embodiments of the application may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the application.

Preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be noted that the terms "upper," "lower," and the like are used herein for purposes of illustration only and not limitation.

Herein, ordinal words such as "first" and "second" cited in the present application are merely identifiers and do not have any other meaning, such as a particular order or the like.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present application. It will be apparent that embodiments of the application may be practiced without limitation to the specific details that are set forth by those skilled in the art. Preferred embodiments of the present application are described in detail below, however, the present application may have other embodiments in addition to these detailed descriptions.

The application provides a tray box. Referring to fig. 1 to 39, the pallet box includes a chassis 100 and walls. The wall body includes a side wall 200 and an end wall 300. The side walls 200 are two. The end walls 300 are two.

The chassis 100 is of generally rectangular configuration. The chassis 100 has long sides and short sides. The length dimension of the long side is greater than the length dimension of the short side. The length direction of the long side is perpendicular to the length direction of the short side. In the present embodiment, the longitudinal direction of the short side is parallel to the first horizontal direction D1. The length direction of the long side is parallel to the second horizontal direction D2.

The side wall 200 is pivotally connected to the chassis 100. The width direction of the sidewall 200 is parallel to the second horizontal direction D2. End wall 300 is pivotally connected to chassis 100. The width direction of the end wall 300 is parallel to the first horizontal direction D1.

The tray box has an assembled state and a housed state.

When the pallet box is in the assembled state, the pallet box is formed into a substantially rectangular parallelepiped structure. The two side walls 200 are located between the two end walls 300. The end wall 300 and the side wall 200 are both perpendicular to the chassis 100. End wall 300 is perpendicular to side wall 200. The height direction of the end wall 300 and the height direction of the side wall 200 are both parallel to the height direction D3 of the chassis 100. The thickness direction of the end wall 300 is parallel to the second horizontal direction D2. The thickness direction of the sidewall 200 is parallel to the first horizontal direction D1. At this time, the pallet box can be used for transporting goods.

With the tray in the stowed condition, both end wall 300 and side wall 200 are parallel to chassis 100. At this time, the end wall 300 and the side wall 200 are received in the chassis 100. In this way, the tray box is convenient to transport.

Referring to fig. 14 to 26, the chassis 100 includes a carrying portion 110 and a fork lift portion 190. The bearing 110 includes a sheathing 111, a bearing side beam 112, and a bearing end beam 113. The lengthwise direction of the carrier side member 112 is parallel to the second horizontal direction D2. The lengthwise direction of the carrier end beam 113 is parallel to the first horizontal direction D1. The carrier side beams 112 and the carrier end beams 113 enclose a substantially rectangular frame. The sheathing 111 is laid on the upper end of the carrying part 110. The cargo may be placed on the upper surface of the sheathing 111.

The fork lift 190 includes a fork lift side beam 191 and a fork lift end beam 192. The length direction of the fork lift portion side member 191 is parallel to the second horizontal direction D2. The length direction of the fork lift end beam 192 is parallel to the first horizontal direction D1. The fork lift side beams 191 and the fork lift end beams 192 enclose a generally rectangular frame. Along the height direction D3 of the chassis 100, the fork lift 190 is located below the carrying portion 110. Along the height direction D3 of the chassis 100, the fork lift 190 is spaced from the carrier 110 by a slide way.

The corners of the chassis 100 are provided with legs 605. The fork lift side beams 191 and the fork lift end beams 192 are each connected to a leg 605. The upper surface of the leg 605, the upper surface of the fork lift side beam 191, is flush with the upper surface of the fork lift end beam 192.

The chassis 100 also includes a skid assembly. The chute assembly includes a side chute assembly and an end chute assembly. The side slip track assembly includes a first track assembly and a second track assembly. The end slide assembly includes a third slide assembly and a fourth slide assembly.

The first runner assembly includes a first support member 120 (one example of a support member). The second runner assembly includes a second support member 130 (one example of a support member). The third runner assembly includes a third support member 140 (one example of a support member). The fourth ramp assembly includes a fourth support member 150 (one example of a support member).

The slideway component is positioned in the slideway interval. The first, second, third and fourth support members 120, 130, 140, 150 are sequentially disposed from top to bottom in the height direction D3 of the chassis 100.

The support members of the side runner assembly are side support members. The support member of the end chute assembly is an end support member. Each ramp assembly includes two support members. The two support members include a left support member 121 and a right support member 122. The left and right support members 121 and 122 each include a support member standing wall 124 and a support member bottom wall 123.

In the case where the support members are connected to the chassis 100, in each of the support members, the support member standing wall 124 is located on the side of the support member bottom wall 123 away from the center of the chassis 100 in the width direction of the support member. In the case where the support members are connected to the chassis 100, in each of the support members, the support member standing wall 124 is located above the support member bottom wall 123 in the height direction D3 of the chassis 100. In the case where the support member is connected to the chassis 100, the width direction of the support member is parallel to the horizontal direction and perpendicular to the length direction of the support member. The support member bottom wall 123 of each support member is perpendicular to the support member upright wall 124 and is connected to the support member upright wall 124 to form a generally L-shaped structure.

Specifically, in the case where the support members are connected to the chassis 100, the width direction of the first support member 120 and the width direction of the second support member 130 are parallel to the second horizontal direction D2. In the case where the support members are connected to the chassis 100, the width direction of the third support member 140 and the width direction of the fourth support member 150 are parallel to the first horizontal direction D1.

The first support member 120, the second support member 130, the third support member 140, and the fourth support member 150 each include a support member standing wall 124. The first support member 120, the second support member 130, and the third support member 140 each include a support member bottom wall 123. The upper surfaces of the legs 605 and the upper surfaces of the fork lift side beams 191 constitute the support member bottom wall of the fourth support member 150. Thus, the chassis 100 is simple in structure and light in weight.

Preferably, the first support member 120 and the second support member 130 are an integral piece formed by bending the same steel plate. Specifically, the steel plate is bent to form the support member standing wall 124 and the support member bottom wall 123 of the first support member 120, and then the free end of the support member bottom wall 123 of the first support member 120 is bent downward to form the first overlapping wall. The first overlapping wall is parallel to the support member bottom wall 123 of the first support member 120 and is adhered to the lower surface of the support member bottom wall 123 of the first support member 120, then the free end of the first overlapping wall is bent downward to form the support member standing wall 124 of the second support member 130, and then the lower end of the support member standing wall 124 of the second support member 130 is bent to form the support member bottom wall 123 of the second support member 130.

Thereby, the structure of the chassis 100 is simplified. In addition, the first overlapping wall is attached to the support member bottom wall 123 of the first support member 120, and in the case where the thickness dimension of the steel plate of which the support member is made thin for weight saving, the strength of the support member bottom wall 123 of the first support member 120 can be increased, and further, the limit connecting plate 168 and the link connecting plate 176, which will be described later, can be connected to the support member bottom wall 123 having a large strength.

The support member standing walls 124 of the third support member 140 and the fourth support member 150 are formed as a single piece by bending the same steel plate. Specifically, the steel plate is bent to form the support member standing wall 124 and the support member bottom wall 123 of the third support member 140, and then the free end of the support member bottom wall 123 of the third support member 140 is bent downward to form the second composite wall. The second combined wall is parallel to the support member bottom wall 123 of the third support member 140 and is attached to the lower surface of the support member bottom wall 123 of the third support member 140, and then the free end of the second combined wall is bent downward to form the support member standing wall 124 of the fourth support member 150.

Thereby, the structure of the chassis 100 is simplified. In addition, the second overlapping wall is attached to the support member bottom wall 123 of the third support member 140, and in the case where the thickness dimension of the steel plate of which the support member is made thin for weight saving, the strength of the support member bottom wall 123 of the third support member 140 can be increased, and further, the limit connecting plate 168 and the link connecting plate 176, which will be described later, can be connected to the support member bottom wall 123 having a large strength.

In each of the slide assemblies, the left support member 121 and the right support member 122 are disposed in parallel. In each of the chute assemblies, the position of the left support member 121 and the position of the right support member 122 are substantially the same in the height direction D3 of the chassis 100. In each of the slide assemblies, the left support member 121 and the right support member 122 are disposed at intervals in the width direction of the left support member 121. Thus, in each skid assembly, the left support member 121 is located at one end of the chassis 100 and the right support member 122 is located at the other end of the chassis 100 in the width direction of the support members.

The length direction of the support member of the side runner assembly is parallel to the first horizontal direction D1. The length direction of the support members of the end chute assembly is parallel to the second horizontal direction D2.

Along the first horizontal direction D1, the notch formed by the first end of the first support member 120 and the bearing portion 110 faces one side of the chassis 100, and the notch formed by the first end of the second support member 130 faces the other side of the chassis 100. In the second horizontal direction D2, the notch formed at the first end of the third support member 140 faces one side of the chassis 100, and the notch formed at the first end of the fourth support member 150 faces the other side of the chassis 100. That is, in the first horizontal direction D1, the first end of the first support member 120 is located at one end of the chassis 100, and the first end of the second support member 130 is located at the other end of the chassis 100. In the second horizontal direction D2, the first end of the third support member 140 is located at one end of the chassis 100, and the first end of the fourth support member 150 is located at the other end of the chassis 100.

As shown in fig. 1 to 13, and fig. 27 to 39, the sidewall 200 includes a first sidewall 210 and a second sidewall 220. End wall 300 includes a first end wall 310 and a second end wall 320. The first sidewall 210 corresponds to the first support member 120. The second sidewall 220 corresponds to the second support member 130. The first end wall 310 corresponds to the third support member 140. The second end wall 320 corresponds to the fourth support member 150.

The wall body is provided with a wall body upright post, a wall body pivot shaft and a wall body upper beam. The wall pivot shaft is connected to the lower end of the wall upright post. Along the width direction of the wall body, the wall body pivot shaft protrudes out of the center of the wall body towards the wall body upright post. Each wall has two wall pivot axes. Along the width direction of the wall body, the two wall body pivot shafts protrude outwards in opposite directions. Specifically, the side wall 200 includes side uprights 230, a side wall pivot shaft 231, and a side upper beam 260. End wall 300 includes end posts 330, end wall pivot shafts 331, and end wall upper beams 360.

Along the width direction of the wall body, the maximum dimension between two upright posts of the wall body is the maximum dimension of the upright posts, and the maximum dimension between two wall body pivot shafts of the wall body is the maximum dimension of the shafts. In each of the slide assemblies, the minimum dimension between the two support member bottom walls 123 is the bottom wall minimum dimension, and the minimum dimension between the two support member upright walls 124 is the upright wall minimum dimension, along the width direction of the support members.

In the wall body and the slideway component which are mutually corresponding, the minimum size of the bottom wall is smaller than the maximum size of the upright post, the minimum size of the bottom wall is smaller than the maximum size of the shaft, and the minimum size of the upright wall is larger than the maximum size of the shaft.

In the corresponding wall and slideway assembly, the wall pivot axis and wall upright overlap to the support member bottom wall 123. In this way, the wall is rotatable about the wall pivot axis between an upright position and a flat position. With the wall in the upright position, the wall is perpendicular to the chassis 100. In the case where the wall is in the flat position, the upper beam of the wall is located outside the chassis 100, and the wall is parallel to the chassis 100.

In the case where the wall is parallel to the chassis 100, the wall pivot shaft can move along the length direction of the support member where it overlaps. In this way, the wall is movable between a lying position and a stowed position through the gap of the corresponding chute assembly. When the wall body is at the storage position, the wall body is positioned in the corresponding slideway component.

Preferably, referring to fig. 1, the width direction of the end wall 300 is parallel to the short side. The width direction of the side wall 200 is parallel to the long side. The length dimension of the end support members is greater than the length dimension of the side support members. In this way, the height dimension of the end wall 300 can be made larger than the height dimension of the side wall 200 in order to increase the capacity of the tray box as much as possible, while allowing the walls to be accommodated within the chassis 100.

Preferably, with the pallet magazine in the assembled state, the end wall upper beams 360 are located higher than the side wall upper beams 260 in the height direction D3 of the chassis 100. That is, the upper surface of the end wall upper beam 360 (the end of the end wall upper beam 360 that is away from the end wall pivot shaft 331 in the height direction of the end wall 300) is located above the upper surface of the side wall upper beam 260 (the end of the side wall upper beam 260 that is away from the side wall pivot shaft 231 in the height direction of the side wall 200) in the height direction D3 of the chassis 100. Thus, the tray box volume can be increased by increasing the height of the end walls 300, while ensuring that the side walls 200 can be accommodated within the chassis 100.

In an embodiment not shown, the upper surface of the side wall upper beam may also be substantially flush with the upper surface of the end wall upper beam 360.

In a not shown embodiment, the width direction of the end walls may also be parallel to the long sides. The width direction of the side wall is now parallel to the short side. The side support members have a length dimension that is greater than the length dimension of the end support members.

In one embodiment, not shown, side runner assemblies may be provided only within the runner spacing to support the side walls, as desired. Or only end chute assemblies may be provided within the chute spacing to support the end walls. At this time, the corner of the chassis is provided with a chassis upright post higher than the upper plane of the bearing part for hinging a wall body which cannot be accommodated in the chassis.

In an embodiment not shown, only one slide assembly may be provided in the slide compartment for receiving any one of the walls, depending on the user's requirements. At this time, chassis corner sets up the chassis stand of the upper plane that exceeds the loading part in order to be used for articulating the wall that can not accomodate in the chassis.

Preferably, as shown in FIG. 3, the chassis 100 has a carrier support plate 118. The carrier support plate 118 connects the first support member 120 and the carrier 110. Thereby, the height of the first support member 120 may be reduced, thereby reducing the weight of the tray box.

In this embodiment, the end wall 300 and the side wall 200 can be received in the chassis 100 for unloading when the pallet box is in use, so that the end wall 300 and the side wall 200 are not lost.

In each slide assembly, the end of the support member remote from the first end of the support member is the second end of the support member along the length of the support member. As shown in fig. 3, 4, 8, 16, 17, 19, 22, 23, 25, 35, 36 and 39, the chassis 100 further includes a positioning block 601 corresponding to each support member one by one. The positioning block 601 is a flat plate. The plane of the positioning block 601 is perpendicular to the length direction of the corresponding supporting member. The positioning block 601 is located at the second end of the corresponding support member and is connected to the corresponding support member. Among the support member and the positioning block 601 corresponding to each other, the positioning block 601 is located on a side of the support member standing wall 124 near the center of the chassis 100 in the width direction of the support member, and connects the support member standing wall 124. Of the support member and the positioning block 601 corresponding to each other, the positioning block 601 is located above the support member bottom wall 123 and connected to the support member bottom wall 123.

In the wall and slideway assembly corresponding to each other, the minimum dimension between the two positioning blocks 601 connected to the supporting member is smaller than the maximum dimension of the wall upright post along the width direction of the supporting member. Thus, the positioning block 601 can block the wall body located at the storage position, and the wall body is prevented from moving out of the slideway assembly from the second end of the supporting member.

It will be appreciated that in an embodiment not shown, one support member in each ramp assembly is connected with a detent and the other support member is not connected with a detent. At this time, in the wall body and the slideway assembly which correspond to each other, the minimum dimension between the positioning block connected to one supporting member and the supporting member vertical wall of the other supporting member is smaller than the maximum dimension of the wall body vertical column along the width direction of the supporting member.

In an embodiment not shown, the top end of the positioning block extends towards the first end of the support member corresponding thereto to constitute a positioning block wall. I.e. the positioning catch is L-shaped. The minimum distance between the positioning baffle wall of the positioning baffle and the bottom wall of the supporting member corresponding to the positioning baffle is larger than the thickness of the wall body along the height direction of the chassis. Therefore, the positioning baffle wall can prevent the wall body from moving upwards, and further, in the process of transporting the tray box, the wall body is prevented from moving out of the corresponding slideway assembly due to jolt. Further preferably, the positioning block connected with the third support member may include a positioning block wall to block movement of the first end wall in the height direction of the chassis.

The chassis 100 further includes a stopper corresponding to each of the support members one by one. The limiting block is positioned at the first end of the supporting member corresponding to the limiting block. Among the support member and the stopper corresponding to each other, the stopper is located on a side of the support member standing wall 124 near the center of the chassis 100 in the width direction of the support member. Among the supporting member and the stopper corresponding to each other, the stopper is located above the supporting member bottom wall 123.

In the wall body and the slideway component which are mutually corresponding, the minimum dimension between the two limiting stops corresponding to the supporting component is smaller than the maximum dimension of the shaft of the wall body along the width direction of the supporting component. Thus, the limiting block can block the wall body pivot shaft of the wall body positioned at the flat position, and the wall body pivot shaft is prevented from moving out of the slideway assembly from the first end of the supporting member. Thereby, the wall body can be prevented from leaving the chassis 100.

Preferably, the partial stop comprises an upper stop wall 127 and a standing stop wall 128, as shown in fig. 2, 4, 8, 9, 16, 19, 20, 23, 25 and 26. The upper blocking wall 127 is parallel to the horizontal direction. The standing wall 128 is parallel to the height direction D3 of the chassis 100. The upper retaining wall 127 is located above the vertical retaining wall 128. Along the length direction of the support member corresponding to the stopper, the standing stopper wall 128 is located on the side of the upper stopper wall 127 away from the center of the chassis 100. The upper blocking wall 127 and the vertical blocking wall 128 form an L-shaped structure. A space exists between the upper stopper wall 127 and the support member bottom wall 123 of the support member corresponding to the stopper. The wall pivot axis can enter the space. Therefore, the limiting block is simple in structure.

Preferably, at least one of the two limit stops corresponding to the two support members of each ramp assembly is detachably provided. Therefore, the detachable limiting block is detached, and the wall body comprising the wall body pivot shaft blocked by the limiting block can be detached. Therefore, the wall body is convenient to maintain.

As shown in fig. 1 to 4, 6 to 9, 14 to 26 and 35 to 39, the chassis 100 has a force-transmitting member 180. Force-transmitting member 180 is located at a corner of chassis 100. The force transfer member 180 includes a horizontal force transfer portion 181, an upper force transfer portion 182 and a lower force transfer portion 183. Along the height direction D3 of the chassis 100, a portion of the upper force transmitting portion 182, a portion of the horizontal force transmitting portion 181 and a portion of the lower force transmitting portion 183 are provided from top to bottom. The horizontal force transfer portion 181 is perpendicular to the height direction D3 of the chassis 100. The upper force transmitting portion 182 is perpendicular to the second horizontal direction D2. In the second horizontal direction D2, the upper force transmitting portion 182 is located outside the horizontal force transmitting portion 181 away from the center of the chassis 100, and is connected to the horizontal force transmitting portion 181. The lower force transmitting portion 183 is perpendicular to the first horizontal direction D1. The lower force transmitting portion 183 is located outside the horizontal force transmitting portion 181 in the first horizontal direction D1 away from the center of the chassis 100, and is connected to the horizontal force transmitting portion 181.

The horizontal force transfer portion 181 is located between the second support member 130 and the third support member 140 in the height direction D3 of the chassis 100. The second support member 130 is overlapped to the horizontal force transfer portion 181 such that the horizontal force transfer portion 181 supports the second support member 130.

In the second horizontal direction D2, the upper force transmitting portion 182 is located outside the center of the first support member 120 away from the chassis 100 and is connected to the support member standing wall 124 of the first support member 120. In the second horizontal direction D2, the upper force transmitting portion 182 is located outside the center of the second support member 130 away from the chassis 100 and is connected to the support member standing wall 124 of the second support member 130.

The lower force transmitting portion 183 is located outside the center of the third support member 140 away from the chassis 100 in the first horizontal direction D1, and is connected to the support member standing wall 124 of the third support member 140. The lower force transmitting portion 183 is located outside the center of the fourth support member 150 away from the chassis 100 in the first horizontal direction D1, and is connected to the support member standing wall 124 of the fourth support member 150. The lower force transfer portion 183 is connected to the leg 605. In this way, the force-transmitting member 180 is prevented from interfering with the support member, thereby preventing the force-transmitting member 180 from blocking the side wall 200 and the end wall 300 from being received within the chassis 100.

The upper force transmitting portion 182 is connected to the carrier portion 110. The force applied to the bearing part 110 can be transferred to the upper force transfer part 182, then transferred to the horizontal force transfer part 181 by the upper force transfer part 182, then transferred to the lower force transfer part 183 by the horizontal force transfer part 181, and then transferred to the supporting leg 605 by the lower force transfer part 183, so that the support member with weaker strength is prevented from being deformed under force.

Preferably, force transfer member 180 may be a machined member, a welded member, or an integrally molded cast member.

Preferably, the limit stop comprises a fixed limit stop and a movable limit stop. The limiting stops corresponding to the two supporting members of each slideway component comprise a fixed limiting stop and a movable limiting stop. The movable limiting block is detachably arranged. The fixed stop is formed by a portion of the force-transmitting member 180.

Specifically, the upper portion of force-transmitting member 180 is provided with corner walls 184. Corner wall 184 may be integral with force transfer member 180. The fixed stop includes a first fixed stop 125, a second fixed stop 135, a third fixed stop 145, and a fourth fixed stop 155. The movable stop includes a first movable stop 126, a second movable stop 136, a third movable stop 146, and a fourth movable stop 156.

As shown in fig. 23, along the second horizontal direction D2, a portion of the corner wall 184 extends near the center of the chassis 100 to form a first fixed stopper 125. The first fixed stop 125 is located at the left support member 121 of the first support member 120. The first fixed stop 125 includes an upper stop wall 127 and a vertical stop wall 128.

Referring to fig. 4 and 16, a first movable stop 126 is disposed at the right support member 122 of the first support member 120. The first movable stop 126 is connected to the corner wall 184 by a fastener (e.g., bolt 604). In the second horizontal direction D2, the first movable stopper 126 is located inside the portion of the corner wall 184 connected thereto near the center of the chassis 100. Along the second horizontal direction D2, a portion of the corner wall 184 extends near the center of the chassis 100 to form a limit table 185. The first movable stopper 126 includes an upper stopper wall 127 and a standing stopper wall 128. In the first horizontal direction D1, the stopper rest 185 is located outside the standing stopper wall 128 of the first movable stopper 126 away from the center of the chassis 100. The stop block 185 is located below the upper stop wall 127 of the first movable stop 126. In this way, the stop table 185 blocks the first movable stop 126, preventing the first movable stop 126 from rotating about the axis of the fastener.

As shown in fig. 20, along the second horizontal direction D2, a portion of the corner wall 184 extends near the center of the chassis 100 to form a second fixed stop 135. The second fixed stop 135 is located at the left support member 121 of the second support member 130. The second fixed stop 135 includes an upper stop wall 127 and a vertical stop wall 128.

Referring to fig. 9 and 25, a second movable stopper 136 is disposed at the right support member 122 of the second support member 130. The second movable stop 136 is coupled to the corner wall 184 by a fastener (e.g., bolt 604). In the second horizontal direction D2, the second movable stopper 136 is located inside the portion of the corner wall 184 connected thereto near the center of the chassis 100. Along the second horizontal direction D2, a portion of the corner wall 184 extends near the center of the chassis 100 to form a limit table 185. The second movable stopper 136 includes an upper stopper wall 127 and a standing stopper wall 128. In the first horizontal direction D1, the stopper rest 185 is located outside the standing stopper wall 128 of the second movable stopper 136 away from the center of the chassis 100. The stop block 185 is located below the upper stop wall 127 of the second movable stop 136. In this way, the stop table 185 blocks the second movable stop 136, preventing the second movable stop 136 from rotating about the axis of the fastener.

Referring back to fig. 3 and referring to fig. 17, along the first horizontal direction D1, a portion of the lower force transmitting portion 183 extends near the center of the chassis 100 to form a third fixed stop 145. The third fixed stop 145 is located at the left support member 121 of the third support member 140. The third fixed stop 145 includes a standing stop wall 128. The upper end of the standing barrier wall 128 of the third fixed barrier 145 is connected to the horizontal force transmitting portion 181. In this way, the standing abutment wall 128 and the horizontal force transfer portion 181 of the third fixed abutment 145 block the end wall pivot axis 331 of the first end wall 310 from exiting the third support member 140.

Referring back to fig. 2 and referring to fig. 19, a third movable stop 146 is provided at the right support member 122 of the third support member 140. The third movable stop 146 is connected to the lower force transfer portion 183 by a fastener (e.g., bolt 604). The third movable stopper 146 is located inside the portion of the lower force transmitting portion 183 connected thereto near the center of the chassis 100 in the first horizontal direction D1. In the first horizontal direction D1, a portion of the lower force transmitting portion 183 extends near the center of the chassis 100 to constitute a blocking wall. The third movable stop 146 includes an upper stop wall 127. In the second horizontal direction D2, the blocking wall is located at an outer end of the upper blocking wall 127 of the third movable stopper 146, which is remote from the center of the chassis 100. The blocking wall is located below the upper blocking wall 127 of the third movable stop 146. In this way, the upper blocking wall 127 of the third movable stop 146 overlaps the blocking wall. The blocking wall and the third movable stop 146 block the end wall pivot shaft 331 of the first end wall 310 from exiting the third support member 140.

As shown in fig. 8 and 26, the portion of the lower force transmitting portion 183 extending in the first horizontal direction D1 is located near the center of the chassis 100 to form the fourth fixed stopper 155. The fourth fixed stop 155 is located at the left support member 121 of the fourth support member 150. The fourth fixed stop 155 includes an upper stop wall 127 and a vertical stop wall 128.

Referring back to fig. 7 and referring to fig. 22, a fourth movable stop 156 is provided at the right support member 122 of the fourth support member 150. The fourth movable stop 156 is connected to the lower force transfer portion 183 by a fastener (e.g., bolt 604). The fourth movable stopper 156 is located inside the portion of the lower force transmitting portion 183 connected thereto near the center of the chassis 100 in the first horizontal direction D1. In the first horizontal direction D1, a portion of the lower force transmitting portion 183 extends near the center of the chassis 100 to constitute a blocking wall. The fourth movable stop 156 includes an upper stop wall 127. In the second horizontal direction D2, the blocking wall is located at an outer end of the upper blocking wall 127 of the fourth movable stopper 156, which is remote from the center of the chassis 100. The blocking wall is located below the upper blocking wall 127 of the fourth movable stop 156. Thus, the upper blocking wall 127 of the fourth movable stop 156 overlaps the blocking wall. The blocking wall and the fourth movable stop 156 block the end wall pivot shaft 331 of the second end wall 320 from the fourth support member 150.

Referring to fig. 17, 20, 23, 25 and 26, along the second horizontal direction D2, the corner wall 184 has a first groove 186 on an outer end surface thereof away from the center of the chassis 100. The heads of the bolts 604 that connect the first movable stop 126 and the bolts 604 that connect the second movable stop 136 are positioned within the first recess 186. A second groove 187 is provided on the outer side of the lower force transmitting portion 183, which is remote from the center of the chassis 100, in the first horizontal direction D1. The heads of the bolts 604 connecting the third movable stop 146 and the bolts 604 connecting the fourth movable stop 156 are both positioned in the second groove 187, avoiding the heads of the bolts protruding beyond the outer contour of the chassis 100. Therefore, the transportation is convenient.

Referring to fig. 4, 8, 14, 15, 22, 35, 36 and 38, the tray box further includes a limiting assembly 160. The limit assembly 160 includes a limit shaft 161, a limit member 162, and a limit torsion spring 167. The chassis 100 has a limit web 168. The limit connection plate 168 is parallel to the horizontal direction and fixedly connected to the support member. The limit shaft 161 is fixedly connected to the limit connection plate 168.

The stopper member 162 is a sheet metal part. The stop member 162 is configured as a C-shaped structure including a stop bottom wall 166 and a stop side wall 165. The opening of the stopper member 162 faces upward. The stopper member 162 has a lock stopper end 163 and a lock stopper operating end 164. The stopper side wall 165 of the stopper member 162 has a through hole. The limiting shaft 161 penetrates through the through hole of the limiting side wall 165. In this way, the stopper member 162 can rotate about the axis of the stopper shaft 161 between the stopper position and the escape position. The through hole is located between the lock stop end 163 and the lock stop operating end 164.

The limit torsion spring 167 includes a torsion spring body and two torsion spring legs. The torsion spring body of the limit torsion spring 167 is sleeved on the limit shaft 161 and is positioned between the two limit side walls 165. One torsion spring leg of the limit torsion spring 167 abuts against the upper surface of the limit bottom wall 166. The other torsion spring leg of the limit torsion spring 167 abuts the limit connection plate 168. In this way, the limit torsion spring 167 acts to apply a force to the limit member 162. The force can rotate the stop member 162 from the off position toward the stop position.

Preferably, the portion of the stop member 162 adjacent the free end of the stop sidewall 165 of the stop web 168 to which it is connected is bent and extends adjacent the stop web 168 to form a catch positioning wall. With the spacing member 162 in the spacing position, the lock stop positioning wall abuts the spacing web 168.

Limiting assemblies 160 are arranged in the sideslip channel assembly and the end slideway assembly.

Referring to fig. 22 and 38, for the side runner assembly and the limit assembly 160 located in the side runner assembly, the limit assembly 160 is located in the chassis 100 along the first horizontal direction D1 and is adjacent to the first end of the second support member 130. In the second horizontal direction D2, the limit connection plate 168 is located at a side of the support member near the center of the chassis 100. The limit connection plate 168 is fixedly connected to the support member bottom wall 123 of the first support member 120. The limit connection plate 168 is located above the support member bottom wall 123 of the second support member 130. The limit webs 168 are generally parallel to the support member bottom wall 123 of the first support member 120. The axis of the limiting shaft 161 is parallel to the second horizontal direction D2.

For the side-slip track assembly and the limit assembly 160 located in the side-slip track assembly, along the first horizontal direction D1, one end of the limit member 162 near the center of the chassis 100 is a lock stop limit end 163, and one end of the limit member 162 far from the center of the chassis 100 is a lock stop operating end 164.

For the side-slip track assembly and the stop assembly 160 located within the side-slip track assembly, with the stop member 162 in the stop position, the catch positioning wall of the stop member 162 abuts the stop connection plate 168. At this time, the limiting member 162 is inclined to the first horizontal direction D1, and the lock stop end 163 is located below the stop connection plate 168 and is spaced from the support member bottom wall 123 of the second support member 130 by a distance smaller than the thickness dimension of the second side wall 220. The latch operating end 164 is located above the limit connecting plate 168. In this way, the limiting member 162 located at the limiting position can block the second side wall 220 located at the storage position, so as to prevent the second side wall 220 from moving toward the flat position.

For the side chute assembly and the stop assembly 160 located within the side chute assembly, manual depression of the catch operating end 164 rotates the stop member 162 toward the disengaged position. At this time, along the height direction D3 of the chassis 100, the limiting member 162 is located above the second sidewall 220, so that the second sidewall 220 can move to the flat position along the first horizontal direction D1.

As shown in fig. 4 and 35, for the end chute assembly and the stop assembly 160 located within the end chute assembly, the stop assembly 160 is located at the first end of the fourth support member 150 along the second horizontal direction D2. In the first horizontal direction D1, the limit connection plate 168 is located at a side of the support member near the center of the chassis 100. The limit connection plate 168 is fixedly connected to the support member bottom wall 123 of the third support member 140. The limit connection plate 168 is located above the support member bottom wall 123 of the fourth support member 150. The limit connection plate 168 is substantially parallel to the support member bottom wall 123 of the third support member 140. The axis of the stopper shaft 161 is parallel to the first horizontal direction D1.

For the end slide assembly and the limit assembly 160 located in the end slide assembly, along the second horizontal direction D2, one end of the limit member 162 near the center of the chassis 100 is a lock stop limit end 163, and one end of the limit member 162 far from the center of the chassis 100 is a lock stop operation end 164.

For the end slide assembly and the stop assembly 160 located within the end slide assembly, with the stop member 162 in the stop position, the catch positioning wall of the stop member 162 abuts the stop connection plate 168. At this time, the stopper member 162 is inclined to the second horizontal direction D2, and the stopper end 163 is located below the stopper connecting plate 168 and is spaced from the support member bottom wall 123 of the fourth support member 150 by a distance smaller than the thickness dimension of the second end wall 320. The latch operating end 164 is located above the limit connecting plate 168. In this way, the stop member 162 in the stop position can block the second end wall 320 in the storage position, preventing the second end wall 320 from moving toward the flat position.

For the end chute assembly and the stop assembly 160 located within the end chute assembly, manual depression of the catch operating end 164 rotates the stop member 162 toward the disengaged position. At this time, the stopper member 162 is located above the second end wall 320 in the height direction D3 of the chassis 100 so that the second end wall 320 can be moved to the flat position in the second horizontal direction D2.

Preferably, as shown in fig. 1, 28 and 32, and in fig. 35 and 38, the walls each have a lock beam 606. The length of lock beam 606 is parallel to the width of the wall. The lock beam 606 is located between the wall upper beam and the wall lower beam of the wall. Along the height of the wall, there is a space between the lock beam 606 and the upper beam of the wall, and a space between the lock beam 606 and the lower beam of the wall. The stop member 162 in the stop position is used to block the lock beam 606 of the second side wall 220 and the second end wall 320. The latter linkage assembly 170 in the stop position serves to block the lock beam 606 of the first side wall 210 and the first end wall 310.

Returning to fig. 3, 9, 15, 17, 23, 25, 37 and 39, the pallet also includes a linkage assembly 170. The linkage assembly 170 includes a linkage shaft 171, a linkage sleeve 172, and a linkage member 173. The chassis 100 has a ganged connection plate 176. The link connection plate 176 is parallel to the horizontal direction and fixedly connected to the support member. The linkage shaft 171 is fixedly connected to the linkage connection plate 176. The linkage sleeve 172 is sleeved on the linkage shaft 171.

The linking member 173 is a sheet metal part. The linkage member 173 is configured as a C-shaped structure including a hook plate bottom wall 174 and a hook plate upright wall 175. The hook plate bottom wall 174 is connected to the outer periphery of the linkage sleeve 172. The hook plate bottom wall 174 is perpendicular to the hook plate vertical wall 175. The hook plate bottom wall 174 and the hook plate upright wall 175 are both parallel to the axial direction of the linkage shaft 171. In this way, the linking member 173 can rotate about the axis of the linking shaft 171 between the stop position and the rest position.

Linkage assemblies 170 are provided in both the side runner assembly and the end runner assembly.

As shown in fig. 23, for the side runner assembly and the linkage assembly 170 located within the side runner assembly, the linkage assembly 170 is located within the chassis 100 and proximate to the first end of the first support member 120 along the first horizontal direction D1. In the second horizontal direction D2, the link connection plate 176 is located on a side of the support member near the center of the chassis 100. The linkage connection plate 176 is fixedly connected to the support member bottom wall 123 of the first support member 120. The linkage connection plate 176 is generally parallel to the support member bottom wall 123 of the first support member 120. The axis of the linkage shaft 171 is parallel to the second horizontal direction D2.

As shown in fig. 39, with the side runner assembly and the linkage assembly 170 located within the side runner assembly, with the linkage member 173 in the stop position, the hook plate bottom wall 174 is parallel to the first horizontal direction D1, and the hook plate upright wall 175 is perpendicular to the first horizontal direction D1. At this time, the hook plate bottom wall 174 is located below the linking sleeve 172 and between the support member bottom wall 123 of the first support member 120 and the support member bottom wall 123 of the second support member 130. The hook plate standing wall 175 extends upward from the hook plate bottom wall 174 to above the support member bottom wall 123 of the first support member 120. In this way, the hook plate standing wall 175 can block the first side wall 210 located at the storage position, preventing the first side wall 210 from moving toward the flat position.

For the side chute assembly and the linkage assembly 170 located within the side chute assembly, when the second sidewall 220 moves toward the storage position, the second sidewall 220 pushes the linkage member 173 to the stop position to block the first sidewall 210 located at the storage position. Thereby, the operation of accommodating the first side wall 210 is simple.

As shown in fig. 23, for the side runner assembly and the linkage assembly 170 located within the side runner assembly, with the linkage member 173 in the rest position, the linkage member 173 is located below the support member bottom wall 123 of the first support member 120.

As shown in fig. 3, for the end chute assembly and the linkage assembly 170 located within the end chute assembly, the linkage assembly 170 is located at the first end of the third support member 140 along the second horizontal direction D2. In the first horizontal direction D1, the link connection plate 176 is located on a side of the support member near the center of the chassis 100. The linkage connection plate 176 is fixedly connected to the support member bottom wall 123 of the third support member 140. The linkage connection plate 176 and the support member bottom wall 123 of the third support member 140 are substantially parallel. The axis of the linkage shaft 171 is parallel to the first horizontal direction D1.

As shown in fig. 37, with the end chute assembly and the linkage assembly 170 located within the end chute assembly, with the linkage member 173 located in the stop position (the position of the linkage member 173 shown in fig. 37), the hook plate bottom wall 174 is parallel to the second horizontal direction D2, and the hook plate upright wall 175 is perpendicular to the second horizontal direction D2. At this time, the hook plate bottom wall 174 is located below the linking sleeve 172 and between the support member bottom wall 123 of the third support member 140 and the support member bottom wall 123 of the fourth support member 150. The hook plate standing wall 175 extends upward from the hook plate bottom wall 174 to above the support member bottom wall 123 of the third support member 140. In this way, the hook plate standing wall 175 can block the first end wall 310 located at the storage position, preventing the first end wall 310 from moving toward the flat position.

For the end chute assembly and the linkage assembly 170 within the end chute assembly, with the second end wall 320 moved toward the stowed position, the second end wall 320 pushes the linkage member 173 to the stop position to block the first end wall 310 in the stowed position. Thereby, the operation of accommodating the first end wall 310 is simple.

As shown in fig. 3, for the end chute assembly and the linkage assembly 170 within the end chute assembly, with the linkage member 173 in the rest position, the linkage member 173 is located below the support member bottom wall 123 of the third support member 140.

It will be appreciated that in an embodiment not shown, the limit webs may also be connected to the carrier portion in the side runner assembly such that the limit shafts are located above the support member bottom wall of the first support member. In this way, the stop member acts to block the first side wall. The linkage member is for blocking the second sidewall. In the end slide assembly, the spacing connection plate may also be connected to the support member bottom wall of the second support member such that the spacing shaft is located above the support member bottom wall of the third support member, such that the spacing member is configured to block the first end wall. The linkage member is for blocking the second end wall.

Preferably, referring to fig. 27 to 34, the wall includes a wall underbeam. Specifically, the side wall 200 has a side wall underbeam 240. End wall 300 has an end wall underbeam 340. The sidewall underbeam 240 of the second sidewall 220 and the end wall underbeam 340 of the second end wall 320 each have a pallet 603. The pallet 603 is located at an outer end of the wall (an end of the wall away from the center of the chassis 100 in the assembled state of the pallet box) in the thickness direction of the wall. The outer side surface of the pallet 603 (the side surface of the pallet 603 away from the center of the chassis 100 when the pallet box is in the assembled state) is substantially flush with the outer side surface of the side wall underbeam 240 connected thereto (the side surface of the wall underbeam away from the center of the chassis 100 when the pallet box is in the assembled state).

With the second side wall 220 parallel to the chassis 100, the pallet 603 of the second side wall 220 is located at the linkage member 173 within the side runner assembly along the second horizontal direction D2. In this way, when the second side wall 220 moves from the flat position to the storage position, the pallet 603 of the second side wall 220 can contact and push the linkage member 173 in the side runner assembly to rotate the linkage member 173 in the side runner assembly to the stop position.

In the event that it is desired to move the first side wall 210 in the stowed position to the upright position, the second side wall 220 is first withdrawn and positioned in the upright position. In this process, the pallet 603 of the second side wall 220 leaves the linkage assembly 170 located in the side runner assembly, and the linkage member 173 naturally rotates to the rest position under the action of its own weight, so that the linkage assembly 170 located in the side runner assembly unblocks the first side wall 210. In this way, the first side wall 210 can be withdrawn and placed in an upright position.

With the second end wall 320 parallel to the chassis 100, the pallet 603 of the second end wall 320 is located at the linkage member 173 within the end chute assembly in the first horizontal direction D1. Thus, with the second end wall 320 moved from the flat position to the stowed position, the tray 603 of the second end wall 320 may contact and push the linkage member 173 within the end chute assembly to rotate the linkage member 173 within the end chute assembly to the stop position.

In the event that it is desired to move the first end wall 310 in the stowed position to the upright position, the second end wall 320 is first withdrawn and placed in the upright position. In the process, the supporting plate 603 of the second end wall 320 leaves the linkage assembly 170 in the end slideway assembly, and the linkage member 173 naturally rotates to the rest position under the action of self gravity, so that the linkage assembly 170 in the end slideway assembly unblocks the first end wall 310. In this way, the first end wall 310 can be withdrawn and placed in an upright position.

Preferably, the limit assembly 160 is connected to the left support member of the side runner assembly and the linkage assembly 170 is connected to the right support member of the side runner assembly.

It will be appreciated that in an embodiment not shown, the stop assembly may be connected to the right support member of the side runner assembly and the linkage assembly connected to the left support member of the side runner assembly. Or the limiting assembly and the linkage assembly are both connected to the left support member or the right support member of the side runner assembly.

Referring to fig. 5, 10, 14, 15, 17, 19 and 26, a corner of the carrying portion 110 is provided with a first stacking block 114. The upper force transfer portion 182 is connected to the carrier end beam 113 and the first stacking block 114. The lower force transfer portion 183 is connected to the leg 605. The bottom surface of leg 605 is provided with stacking holes. When stacking the trays in the stored state, the stacking holes of the legs 605 of the upper tray (the tray located above among the adjacent trays) are sleeved on the first stacking block 114 of the lower tray. The bottom surfaces of the legs 605 of the upper tray box abut the upper plane of the carrying portion 110 of the lower tray box. Thus, the gravity of the upper tray box is transferred to the bearing portion 110 of the lower tray box, then transferred to the upper force transfer portion 182, then transferred to the horizontal force transfer portion 181 by the upper force transfer portion 182, then transferred to the lower force transfer portion 183 by the horizontal force transfer portion 181, and finally transferred to the leg 605 of the tray box by the lower force transfer portion 183.

As shown in fig. 5, 31 and 33, end wall 300 has end posts 330, a second stacking block 370 and a third stacking block 339. The second stacking block 370 has a quadrangular prism structure. The length direction of the quadrangular prism structure is parallel to the width direction of the end wall 300. Along the width direction of the end wall 300, one end of the second stacking block 370 is connected to the end of the end wall lower beam 340, and the other end of the second stacking block 370 is connected to the lower end of the end column 330. A third stacking block 339 is positioned at the upper end of end column 330. The inner box surface of the second stacking block 370 and the inner box surface of the end wall lower beam 340 (the surface of the end wall lower beam 340 near the center of the chassis 100 in the assembled state of the pallet box) are substantially flush in the thickness direction of the end wall 300.

The third stacking block 339 has stacking columns and stacking faces. The upper surface of the end wall upper beam 360 is substantially flush with the stacking surface of the third stacking block to ensure that the stacking surface is subject to stacking gravity.

When the pallet box is in the assembled state, the second stacking block 370 is positioned above the first stacking block 114 and abuts against the first stacking block 114. When stacking the pallet boxes in the assembled state, the stacking holes of the supporting legs 605 of the upper pallet box are sleeved on the stacking columns of the third stacking blocks 339 of the lower pallet box, and the bottom surfaces of the supporting legs 605 of the upper pallet box are abutted against the stacking surfaces of the third stacking blocks 339 of the lower pallet box. Thus, the gravity of the upper tray box is transferred to the end upright post 330 of the lower tray box through the third stacking block 339, then transferred to the second stacking block 370 through the end upright post 330, then transferred to the first stacking block 114 through the second stacking block 370, then transferred to the upper force transmission part 182 through the first stacking block 114, then transferred to the horizontal force transmission part 181 through the upper force transmission part 182, then transferred to the lower force transmission part 183 through the horizontal force transmission part 181, and finally transferred to the supporting leg 605 of the tray box through the lower force transmission part 183. The gravity of the lower tray box and the goods carried by the lower tray box is transmitted to the supporting legs 605 of the tray box by the carrying part 110 through the force transmission piece 180, and the force transmission path is the same as that of the tray boxes in the storage state when being stacked.

Preferably, the second stacking block 370 is of solid construction. Thereby increasing the strength of the second stacking block 370.

As shown in fig. 27-30, the pallet bin side walls include side posts 230. Wherein the side stand of the first side wall 210 is a first side stand 235 and the side stand of the second side wall 220 is a second side stand 236. When the pallet box is in the assembled state, the height position of the side wall upper beam 260 of the first side wall 210 is substantially the same as the height position of the side wall upper beam 260 of the second side wall 220 along the height direction D3 of the chassis 100. That is, in the case where the tray case is in the assembled state, the upper surface of the sidewall upper beam 260 of the first sidewall 210 (the surface of the sidewall upper beam 260 away from the sidewall lower beam 240) is substantially flush with the upper surface of the sidewall upper beam 260 of the second sidewall 220 in the height direction D3 of the chassis 100. The sidewall lower beams 240 of the first sidewall 210 and the sidewall lower beams 240 of the second sidewall 220 are abutted against the upper surface of the bearing portion 110, and the length of the second side pillar 236 of the second sidewall 220 is greater than the length of the first side pillar 235 of the first sidewall 210.

The lower end of the side column 230 is provided with a side wall pivot shaft 231. In the width direction of the side wall 200, a portion of the side wall pivot shaft 231 projects toward the outside of the side wall 200 away from the center of the side wall 200 to project out of the side stand 230.

A pivot shaft connection 232 is also connected to the lower end of the side uprights 230. The pivot shaft connection 232 is a sheet metal part. The pivot shaft connection 232 is a U-shaped structure with an upward opening. The U-shaped structure comprises two connecting vertical walls and a connecting bottom wall. Two connecting vertical walls are connected to the lower ends of the side uprights 230. The connecting bottom wall is located on the side of the connecting riser remote from the side wall upper beam 260. A portion of the side wall pivot shaft 231 is located within the U-shaped structure and is connected to the lower end of the side post 230. Thus, the side wall pivot shaft 231 is firmly connected with the side stand 230.

The length dimension of the first side posts 235 is less than the length dimension of the second side posts 236. Accordingly, the first sidewall 210 is connected to the first support member 120, and the second sidewall 220 is connected to the second support member 130.

As shown in fig. 31-34, the length dimension of end post 330 of first end wall 310 is approximately the same as the length dimension of end post 330 of second end wall 320. The lower portion of the end column 330 is provided with a connection long connection plate. Specifically, the lower portion of end post 330 of first end wall 310 is connected to first elongated web 332 and the lower portion of end post 330 of second end wall 320 is connected to second elongated web 333. The second long connecting plate 333 has a length dimension greater than that of the first long connecting plate 332.

The long connecting plate is a plate piece. The upper end of the long link plate connects the end posts 330, end wall underbeams 340 and second stacking blocks 370. The lower end of the long connecting plate is bent inward of the end wall 300 (in the direction in which the end wall 300 approaches the center of the chassis 100 in the second horizontal direction D2 when the tray box is in the assembled state) to form a connecting short wall. The connecting stub wall is used to connect the end wall pivot shaft 331. An end wall pivot shaft 331 is connected to the bottom surface of the connecting stub wall. In the width direction of end wall 300, a portion of end wall pivot shaft 331 projects toward the outside of end wall 300 away from the center of end wall 300 to project end post 330.

Preferably, the inside of the long link plate (the side of the long link plate near the center of the chassis 100 in the second horizontal direction D2 in the case where the tray box is in the assembled state) is also provided with a reinforcing plate 335. Thereby, the long connecting plate can be reinforced.

The length dimension of the first long connecting plate 332 is smaller than the length dimension of the second long connecting plate 333. Thus, the first end wall 310 is connected to the third support member 140 and the second end wall 320 is connected to the fourth support member 150.

As shown in fig. 19, the force-transmitting member 180 has an elongated web relief groove 189. The long link plate relief groove 189 is defined by the spacing between the upper force transfer portion 182 and the corner wall 184. With the pallet magazine in the assembled condition, portions of the long webs are positioned in the long web relief slots 189 to prevent the long webs from protruding beyond the outer contour of the chassis 100. Therefore, the pallet box in the assembled state is convenient to transport.

As shown in fig. 5, 10, and 33, end wall 300 also includes an anti-bulging barrier 334. The expansion-preventing barrier 334 is connected to the end posts 330 and the second stacking block 370. With the pallet magazine in the assembled condition, the expansion barrier wall 334 is located on the side of the first stacking block 114 near the center of the chassis 100. The first stacking block 114 can block the expansion-preventing wall 334 to prevent the end wall 300 from expanding outwards due to the extrusion of the goods, so as to prevent the long connecting plate from being deformed due to external force.

Preferably, a portion of the box inner face of the first stacking block 114 (the surface of the first stacking block 114 near the center of the chassis 100) is recessed toward the outside of the chassis 100 to constitute a stacking block groove 115. With the pallet magazine in the assembled condition, the expansion barrier wall 334 is positioned within the stacking block recess 115. It is thereby possible to prevent the bulge preventing wall 334 from bulging the inner face of the case of the end wall 300 (the side face of the end wall 300 near the center of the chassis 100 in the assembled state of the pallet case) and to reduce the amount of the pallet case to be loaded. In addition, an increase in the thickness dimension of the end wall 300 can be avoided, thereby smoothing the movement of the end wall 300 between the flat position and the storage position.

In the case where the end wall 300 is to be stored in the upright position, the end wall 300 is lifted, the expansion-preventing wall 334 is separated from the first stacking block 114, the end wall 300 is rotated to the flat position, and then the end wall 300 is moved from the flat position to the storage position.

Preferably, the expansion-preventing blocking wall 334 may be formed by partially bending the end pillar 330.

Referring to fig. 7 to 8, 22 and 26, the distance between the upper blocking wall 127 of the fourth fixed stop 155 and the support member bottom wall (i.e., the upper surface of the fork lift 190) of the fourth support member 150 is large along the height direction D3 of the chassis 100. The distance between the upper stopper wall 127 of the fourth movable stopper 156 and the support member bottom wall (i.e., the upper surface of the fork lift 190) of the fourth support member 150 is large. Thus, with the pallet magazine in the assembled state, the minimum distance between the end wall pivot shaft 331 of the second end wall 320 and the upper blocking wall 127 of the fourth fixed stop 155 is greater than the height dimension of the expansion preventing blocking wall 334 of the second end wall 320 (the dimension of the expansion preventing blocking wall 334 in the height direction of the end wall 300) in the height direction D3 of the chassis 100. With the pallet magazine in the assembled state, the minimum distance between the end wall pivot axis 331 of the second end wall 320 and the upper blocking wall 127 of the fourth movable stopper 156 is greater than the height dimension of the expansion preventing blocking wall 334 of the second end wall 320 in the height direction D3 of the chassis 100. The expansion preventing rib 334 of the second end wall 320 can be separated from the first stacking block 114 so that the second end wall 320 can be received with the second end wall 320 lifted up so that the end wall pivot shaft 331 contacts the upper rib 127 of the fourth fixed stop 155 and the end wall pivot shaft 331 contacts the upper rib 127 of the fourth movable stop 156.

Referring to fig. 2 to 3, 17 and 19, the distance from the horizontal force transmitting portion 181 to the support member bottom wall 123 of the third support member 140 is large in the height direction D3 of the chassis 100. In the assembled state of the pallet box, the minimum distance from the connecting short wall of the first long connecting plate 332 to the horizontal force transfer portion 181 is greater than the height dimension of the expansion preventing blocking wall 334 along the height direction D3 of the chassis 100. Along the height direction D3 of the chassis 100, a portion of the upper blocking wall 127 of the third movable blocking piece 146 is recessed upward to form an opening downward movable blocking groove 149. As shown in fig. 19, in this way, the distance from the groove bottom surface of the movable stopper groove 149 to the support member bottom wall 123 of the third support member 140 is large in the height direction D3 of the chassis 100. In the assembled state, the minimum distance from the end wall pivot shaft 331 to the groove bottom surface of the movable stopper groove 149 is greater than the height dimension of the expansion preventing stopper wall 334 in the height direction D3 of the chassis 100. Thus, when the first end wall 310 is lifted up to bring the connecting short wall of the lower end of the first long link plate 332 into contact with the horizontal force transmitting portion 181 and the end wall pivot shaft 331 into contact with the groove bottom surface of the movable stopper groove 149, the expansion preventing stopper wall 334 can be disengaged from the first stacking block 114, so that the first end wall 310 can be accommodated.

As shown in fig. 30 and 34, the outer end surface of the side column 230, which is far from the center of the side wall 200, is provided with a connection hole 234 in the width direction of the side wall 200. The end posts 330 are provided with connecting pins 338 along the thickness direction of the end wall 300. The connecting pin 338 extends to protrude from the inner surface of the end wall 300 toward the inner side of the end wall 300 (the side of the end wall 300 toward the center of the chassis 100 in the assembled state of the tray box). With the tray case in the assembled state, the connection pins 338 are inserted into the connection holes 234. At this time, the connection pin 338 abuts against the upper edge of the connection hole 234 (the edge of the connection hole 234 away from the side wall lower beam 240). Thus, with the pallet magazine in an assembled state, the upper edge of the connecting hole 234 may block the connecting pin 338 to prevent the end wall 300 from moving upward relative to the side wall 200 in the height direction D3 of the chassis 100.

The minimum distance between the support member bottom wall 123 of the first support member 120 and the upper stopper wall 127 of the first fixed stopper 125, the minimum distance between the support member bottom wall 123 of the first support member 120 and the upper stopper wall 127 of the first movable stopper 126, the minimum distance between the support member bottom wall 123 of the second support member 130 and the upper stopper wall 127 of the second fixed stopper 135, and the minimum distance between the support member bottom wall 123 of the second support member 130 and the upper stopper wall 127 of the second movable stopper 136 are slightly larger than the sum of the diameter dimension of the side wall pivot shaft 231 and the thickness of the connection bottom wall of the pivot shaft connection 232 in the height direction D3 of the chassis 100. Thus, neither the first side wall 210 nor the second side wall 220 in the upright position can move upwardly relative to the chassis 100.

Thus, the end wall 300 in the upright position is also not movable upwardly relative to the chassis 100. During use, neither the side walls 200 nor the end walls 300 are movable upwardly relative to the chassis 100 in the height direction D3 of the chassis 100. Therefore, the expansion-preventing blocking wall 334 cannot be separated from the first stacking block 114, and the pallet box is stable in structure and safe to use.

As shown in fig. 4, 5, and 28 and 33, the junction of the wall upright and the wall underbeam of a part of the wall is provided with a ramp guide 602. The ramp guide 602 is located on the side of the wall post near the center of the wall in the width direction of the wall. The ramp guide 602 is located between the lower wall beam and the upper wall beam in the height direction of the wall.

The ramp guide 602 has a guide surface. The guide surface is inclined to the height direction of the wall body. One end of the guide surface of the ramp guide 602, which is remote from the wall underbeam, is closer to the outside of the wall than the other end.

Specifically, the second end wall 320 has a ramped guide 602. In the second end wall 320, the ramp guide 602 is connected to the end wall lower beam 340 by a second stacking block 370. Along the thickness direction of the second end wall 320, one end of the guide surface near the end wall lower beam 340 is substantially flush with the box inner face of the second stacking block 370 (the surface of the second stacking block 370 near the center of the chassis 100 in the assembled state of the pallet box), and is connected to the box inner face of the second stacking block 370.

With the second end wall 320 in the stowed position, the ramp guide 602 is located at the stop member 162 within the end slide assembly along the width of the second end wall 320 such that the position of the ramp guide 602 is approximately the same as the position of the stop member 162 within the end slide assembly.

Thus, during withdrawal of the second end wall 320, the catch stop 163 of the stop member 162 within the end slide assembly first contacts and slides along the guide surface. The stop member 162 in the end chute assembly rides over the second stacking block 370 under the guidance of the guide surface to avoid the second stacking block 370 being blocked by the stop member 162 so that the second end wall 320 cannot move to the flat position.

The second sidewall 220 has a ramped guide 602. In the second side wall 220, the inclined guide 602 of the second side wall 220 is connected with the side wall lower beam 240. In the thickness direction of the second side wall 220, one end of the guide surface near the side wall lower beam 240 is substantially flush with the box inner face of the side wall lower beam 240 (the surface of the side wall lower beam 240 near the center of the chassis 100 in the assembled state of the pallet box), and is connected to the box inner face of the side wall lower beam 240.

In the case where the second side wall 220 is located at the storage position, the inclined surface guide 602 is located at the position of the stopper member 162 in the side chute assembly in the width direction of the second side wall 220 so that the position of the inclined surface guide 602 is substantially the same as the position of the stopper member 162 in the side chute assembly.

Thus, during extraction of the second side wall 220, the catch stop 163 of the stop member 162 within the side runner assembly first contacts and slides along the guide surface. The stop members 162 in the side runner assembly ride over the side wall underbeams 240 under the guidance of the guide surfaces to avoid the side wall underbeams 240 being blocked by the stop members 162 so that the second side wall 220 cannot move to the flat position.

With the pallet magazine in the assembled condition, the two side walls 200 are located between the two end walls 300.

As shown in fig. 27-34, the side wall 200 also includes side vertical beams 250. The side vertical beams 250 may be plural. The length direction of the side vertical beams 250 is parallel to the height direction of the side walls 200. Both ends of the side vertical beams 250 are connected to the side wall upper beams 260 and the side wall lower beams 240, respectively. The plurality of side vertical beams 250 may be positioned at intervals according to the size of the cargo along the width direction of the side wall 200 to effectively block the cargo. The side vertical beams 250 located at the side of the side wall 200 are spaced apart from the side uprights 230 adjacent thereto in the width direction of the side wall 200. The length of lock beam 606 is parallel to the width of side wall 200. The lock beam 606 is connected at both ends to adjacent side uprights 230 and side stiles 250, respectively. The lock beam 606 is located below the side wall upper beam 260 and spaced apart from the side wall upper beam 260 in the height direction of the side wall 200.

As shown in fig. 30 and 34, the corners of the two sidewalls 200 are provided with locks. The lock includes a lock support, a lock lever 430, a lock handle 440, and a lock handle mount 460. The lock support includes a lock front support 410 and a lock rear support 420.

The lock support is attached to the surface of lock beam 606 remote from side wall upper beam 260. The lock support seat is provided with a lock rod support hole. The axis of the lock lever 430 is parallel to the width direction of the side wall 200. The lock lever 430 is inserted into the lock lever support hole. Thus, the lock lever 430 can move in the width direction of the side wall 200 and can rotate about the axis of the lock lever 430.

The locking end of the locking lever 430 has a hook head. The hook head is a T-shaped head. The axial direction of the hook head is perpendicular to the axial direction of the lock lever 430. The lock handle 440 is coupled to an outer circumferential surface of the lock lever 430. The lock handle 440 may rotate the lock lever 430 about the axis of the lock lever 430. The lock handle 440 may move the lock lever 430 along the axis of the lock lever 430.

The side column 230 is provided with a side column through hole 233. The side column through hole 233 is located at the lock lever support hole in the height direction of the side wall 200. The end wall 300 has a locking aperture 336 therein. When the tray box is in the assembled state, the lock hole 336 is located at the side column through hole 233 along the height direction D3 of the chassis 100. The side post through hole 233 and the lock hole 336 are elongated holes.

When the tray box is in the assembled state, the hook head of the lock lever 430 passes through the side post through hole 233 and then enters the lock hole 336. The locking bar 430 is now rotated so that the axis of the hook head is offset (e.g., perpendicular) from the long axis of the locking aperture 336, thereby locking the end wall 300 to the side wall 200. At this point, the hook head is in the locked position and the lock handle 440 is secured into the lock handle mount 460.

The side posts 230 are spaced apart from the front lock support 410 to form a hook receiving space. When the hook is in the open position, the hook enters the hook receiving space through the locking hole 336 and the side post through hole 233, and the lock handle 440 enters the lock handle fixing member 460 to be fixed.

As shown in fig. 30, the side wall 200 also has a lock guard 450. Along the height of the side wall 200, a lock guard 450 is located at the lock handle 440. The lock guard 450 is located inside the lock handle 440 in the thickness direction of the side wall 200 (on the side of the lock handle 440 near the center of the chassis 100 in the case where the pallet box is in the assembled state). When the lock handle 440 is fixed by the lock handle fixing member 460, a gap is formed between the lock guard 450 and the lock handle 440 in the thickness direction of the side wall 200. When the goods placed in the assembled pallet box are expanded, the lock guard 450 can block the goods, and the goods are prevented from squeezing the lock handle 440. In this way, with the shackle in the locked position, the lock guard 450 prevents the expanding cargo from squeezing the lock handle 440, thereby facilitating the release of the lock handle 440 from the lock handle mount 460 and the rotation of the shackle to the open position. In addition, the cargo is prevented from squeezing the lock handle 440, thereby unlocking the lock.

The side uprights 230, side uprights 250, and lock support are all connected to a lock guard 450. The surface of the lock guard 450 near the inside of the side wall 200 (the side of the side wall 200 near the center of the chassis 100 when the pallet is in the assembled state), the surface of the lock support near the inside of the side wall 200, and the surface of the lock beam 606 near the inside of the side wall 200 are substantially flush. The surface of the lock guard 450 near the inside of the side wall 200, the surface of the lock support near the inside of the side wall 200, and the surface of the lock beam 606 near the inside of the side wall 200 are joined together and the joint is smooth to form a continuous smooth plane. When the side wall 200 is in the storage position, the positions of the stopper member 162 located in the side runner assembly, the surface of the lock guard 450 near the inside of the side wall 200, the surface of the lock support near the inside of the side wall 200, and the surface of the lock cross member 606 near the inside of the side wall 200 are substantially the same along the width direction of the side wall 200. Thus, the lock stop end 163 of the stop member 162 located within the side runner assembly is able to slide on the surface of the lock guard 450 proximate the inside of the side wall 200, the surface of the lock support proximate the inside of the side wall 200, and the surface of the lock beam 606 proximate the inside of the side wall 200. Thereby facilitating the drawing of the sidewall 200.

Preferably, the end pillar 330 is a sheet metal part formed by bending a steel plate. The cross-section of end post 330 (which is perpendicular to the length of end post 330) is generally S-shaped in shape. The S-shaped structure includes an outer end wall, a middle end wall, an inner end wall, and two side end walls. The outer end wall, the middle end wall, the inner end wall, and both side end walls are flat wall structures. The two side end walls are arranged in parallel. The outer end wall, the middle end wall and the inner end wall are arranged in parallel. The side end walls are perpendicular to the outer end walls. The outer end wall is located at the outer end of end post 330, which is remote from the center of end wall 300, in the width direction of end wall 300. The outer end wall, one side end wall, the middle end wall, the other side end wall, and the inner end wall are disposed in this order in the width direction of the end wall 300.

The outer end wall is located outside the side wall 200 when the tray case is in the assembled state (the side of the side wall 200 away from the center of the chassis 100 when the tray case is in the assembled state). In this way, end wall 300 can resist outward bulging of side wall 200. In addition, the S-shaped configuration can increase the strength of end post 330.

End wall 300 also has end post reinforcement 337. The outer end wall, one side end wall, and the middle end wall form a recess open to the inside of end wall 300. An end post stiffener 337 is located within the recess. The end post stiffener 337 is a plurality. The connecting pin 338 is connected to the end post stiffener 337 with a locking hole 336 provided on the bottom surface of the recess.

The inner box surface of the end pillar reinforcement 337 (the surface of the end pillar reinforcement 337 near the center of the chassis 100 in the assembled state of the tray box), the inner box surface of the side end wall apart from the outer end wall (the surface of the side end wall near the center of the chassis 100 in the assembled state of the tray box), and the inner box surface of the end wall upper beam 360 (the surface of the end wall upper beam 360 near the center of the chassis 100 in the assembled state of the tray box) are substantially flush with the inner box surface of the end wall lower beam 340 to constitute a portion of the inner box surface of the end wall 300.

With the end wall 300 in the upright position, there is a gap between the expansion-preventing blocking wall 334 and the bottom surface of the stacking block recess 115, and there is a gap between the reinforcing plate 335 and the bottom surface of the long link plate escape groove 189, in the thickness direction of the end wall 300. In this way, the end wall 300 in the upright position can be tilted outwardly. At this time, the end wall upper beam 360 is farther from the center of the chassis 100 than the end wall lower beam 340. The offset of the connecting pin 338 from the side posts 230 facilitates insertion of the connecting pin 338 into the connecting aperture 234.

The coupling hole 234 is located at a side of the locking lever 430 adjacent to the sidewall upper beam 260 in the height direction of the sidewall 200. Thereby, the insertion of the connection pin 338 into the connection hole 234 is facilitated.

In an embodiment not shown, the lock may also be provided on the end wall.

As shown in fig. 11, the side wall 200 also includes a retaining assembly. The retention assembly includes a latch. The latch includes a latch seat 520, a latch lever 510, and a latch spring 530. The latch seats 520 are fixedly connected to the side stiles 250. The latch seats 520 are spaced apart from the sidewall lower beams 240 along the height of the sidewall 200. The latch seat 520 is provided with a latch supporting hole. The sidewall lower beam 240 is provided with a first holding hole. The latch rod 510 is inserted through the latch supporting hole and the first holding hole. Thus, the latch lever 510 is movable in the axial direction of the latch lever 510, and is rotatable about the axis of the latch lever 510.

The latch lever 510 is provided with an elastic cylindrical pin. The elastic cylindrical pin protrudes from the outer circumferential surface of the latch rod 510. The latch spring 530 is sleeved on the latch rod 510 and is located between the latch seat 520 and the elastic cylindrical pin. One end of the latch spring 530 abuts the latch seat 520. The other end of the latch spring 530 abuts against the elastic cylindrical pin. Latch spring 530 is used to apply a force to latch lever 510 that moves latch lever 510 away from sidewall upper beam 260.

The latch base 520 has two latch handle positioning slots 521 spaced apart along the height of the side wall 200. The two latch handle detents 521 include a first latch handle detent and a second latch handle detent. The first latch handle locating slot is located laterally of the second latch handle locating slot, along the height of the side wall 200, adjacent the side wall upper beam 260.

The upper portion of the latch lever 510 is bent to form a latch handle 511. The carrier side member 112 is provided with a second holding hole. The chassis 100 also includes a latch tube 116. The axis of the latch tube 116 extends in the height direction D3 of the chassis 100. The latch tube 116 is inserted through and fixed in the second holding hole. With the side wall 200 in the upright position, the latch bar 510 may extend out of the side wall underbeam 240 to enter the latch tube 116. At this time, the latch lever 510 may be rotated so that the latch handle 511 enters the second latch handle detent. Thereby maintaining the latch rod 510 in position into the latch tube 116. The latch spring 530 is in a compressed state such that the force of the latch spring 530 may hold the latch rod 510 in place into the latch tube 116.

In the case where it is required to put the pallet box in the assembled state, the second side wall 220 is first moved to the upright position, and the latch rod 510 connected to the second side wall 220 is inserted into the latch tube 116 to stop the second side wall 220 in the upright position. The first side wall 210 is then moved to the upright position and the latch rod 510 attached to the first side wall 210 is inserted into the latch tube 116 to stop the first side wall 210 in the upright position and then the end wall is moved to the upright position. Therefore, the tray box is conveniently in the assembling state, so that one person can finish moving the tray box to the assembling state.

In the case where it is necessary to place the tray in the storage state, the latch lever 510 is rotated so that the latch handle 511 is separated from the second latch handle positioning groove. The latch rod 510 is then disengaged from the latch tube 116 and the side wall 200 is again received. At this time, the latch handle 511 is positioned in the first latch handle positioning groove, and the latch spring 530 may exert a force to hold the latch handle 511 in the first latch handle positioning groove.

It will be appreciated that in an embodiment not shown, the retaining assembly may take other forms, such as a movable flap provided on the carrier side beam to block the outside of the bin of the side wall in the erect position (the outer surface of the side wall remote from the centre of the chassis with the pallet bin in the erect condition).

As shown in fig. 16, the four corners of the carrying portion 110 are provided with relief portions 117. With the pallet magazine in the assembled condition, the lower ends of the wall uprights and the pallet 603 are located in the relief 117 so that the wall uprights can pass through the carrier 110 for pivotal connection to the support members. The wall posts of the wall in the upright position are prevented from protruding beyond the outer contour of the chassis 100, facilitating transportation.

The steps for placing the pallet magazine in the assembled state are as follows:

The second side wall 220 is assembled by pressing down the locking operation end 164 in the side slide assembly by one hand to release the blocking of the locking beam 606 of the second side wall 220 by the locking limit end 163, pulling out the side wall upper beam 260 of the second side wall 220 by the other hand while releasing the locking operation end 164 to pull the second side wall 220 to the flat position, then rotating the second side wall 220 to the upright position, and then inserting the latch rod 510 connected to the second side wall 220 into the latch tube 116 and allowing the latch handle 511 to enter the second latch handle positioning slot to complete the assembly of the second side wall 220.

The subsequent steps of assembling the first side wall 210 and the subsequent steps of assembling the second side wall 220 after the first side wall 210 is pulled to the flat position are substantially the same, and will not be described again here. Since the locking of the first sidewall 210 is automatically released after the second sidewall 220 is assembled, the assembling operation is simplified.

The second end wall 320 is assembled by pressing the catch operating end 164 in the end slide assembly downwardly by one hand to unblock the catch limiting end 163 from the catch beam 606 of the second end wall 320, pulling the end wall upper beam 360 of the second end wall 320 outwardly by the other hand while releasing the catch operating end 164, pulling the second end wall 320 to the flat position, and then rotating the second end wall 320 to the generally upright position, whereupon the expansion preventing wall 334 of the second end wall 320 is in close or even proximate contact with the first stacking block 114, lifting the second end wall 320 upwardly such that the expansion preventing wall 334 is above the first stacking block 114, and continuing to rotate the second end wall 320 such that the expansion preventing wall 334 passes over the first stacking block 114, and then lowering the second end wall 320 such that the expansion preventing wall 334 is positioned in the stacking block recess 115 of the first stacking block 114. At this time, the second end wall 320 is inclined outward to straighten the side wall 200, so that the connecting pin 338 of the second end wall 320 is aligned with the connecting hole 234 of the side wall 200, the second end wall 320 is continuously rotated to make the connecting pin 338 enter the connecting hole 234, then the locking handle 440 on the side wall 200 is operated to make the hook head of the locking rod 430 enter the locking hole 336 of the second end wall 320, the locking handle 440 is rotated to make the locking handle 440 enter the locking handle fixing member 460 to fix the second end wall 320 and the side wall 200, and the assembly of the second end wall 320 is completed.

The subsequent steps of assembling the first end wall 310 and the second end wall 320 after the first end wall 310 is directly pulled to the flat position are substantially the same, and are not described herein.

As shown in fig. 31 and 32, end wall 300 further includes an end vertical beam 350. The end vertical beams 350 may be plural. The length direction of the end vertical beams 350 is parallel to the height direction of the end walls 300. The end vertical beams 350 are connected at both ends to the end wall upper beams 360 and the end wall lower beams 340, respectively. The plurality of end vertical beams 350 may be positioned at intervals according to the size of the cargo along the width direction of the end wall 300 to effectively block the cargo. The end vertical beams 350 located at the side of the end wall 300 are spaced apart from the end columns 330 adjacent thereto in the width direction of the end wall 300. The length direction of lock beam 606, which is attached to end wall 300, is parallel to the width direction of end wall 300. The lock beam 606 is connected at both ends to adjacent end posts 330 and end vertical beams 350, respectively. The lock beam 606 is located below the end wall upper beam 360 and spaced from the end wall upper beam 360 in the height direction of the end wall 300.

Preferably, the side wall 200 and the end wall 300 may also be provided with side wall panels (not shown) and end wall panels (not shown) along which the catch stop 163 may slide during movement of the wall from the stowed position to the flat position.

The steps for putting the tray box in the storage state are as follows:

The first end wall 310 is received by operating the lock handle 440 on the side wall 200 such that the hook of the lock lever 430 locking the first end wall 310 is retracted into the hook receiving space, and then rotating the lock handle 440 such that the lock handle 440 is fixed into the lock handle fixing member 460, to prevent the lock handle 440 from sagging during receiving of the side wall 200 to affect the side wall 200 being received into the chassis 100. Tilting the first end wall 310 outwardly causes the connecting pin 338 to withdraw from the connecting aperture 234, lifting the first end wall 310 upwardly, bringing the connecting short wall of the lower end of the first long link 332 into contact with the horizontal force transfer portion 181, and bringing the end wall pivot shaft 331 of the first end wall 310 into contact with the upper stop wall 127 of the third movable stop 146. At this time, the expansion preventing blocking wall 334 is disengaged from the stacking block groove 115 of the first stacking block 114. The first end wall 310 is then rotated outwardly to a flat position and the first end wall 310 is then moved to a stowed position. The end wall pivot shaft 331 of the first end wall 310 is now in contact with the positioning block 601 of the third support member 140.

The step of receiving the second end wall 320 is substantially the same as the step of receiving the first end wall 310, and will not be described again. The second end wall 320 and the first end wall 310 are simultaneously automatically locked with the second end wall 320 moved to the stowed position. Thereby simplifying the storing operation.

The principle of the automatic locking is that the end wall lower beam 340 and lock beam 606 of the second end wall 320 are in contact with the stop bottom wall 166 in the end slide assembly in sequence to urge the stop member 162 to rotate, thereby raising the lock stop 163. In the event that the second end wall 320 is to be moved to the stowed position, the pallet 603 of the second end wall 320 comes into contact with the lower end of the hook plate bottom wall 174 of the linkage member 173 in the end slide assembly, and as the second end wall 320 is moved to the stowed position, the catch stop 163 passes over the lock beam 606 and under the influence of the limit torsion spring 167, the catch stop 163 rotates downwardly to the limit position to block the lock beam 606 of the second end wall 320 in the stowed position. At the same time, the pallet 603 pushes the linkage member 173 to rotate from the rest position to the stop position for blocking the lock beam 606 of the first end wall 310 in the storage position, the second end wall 320 and the first end wall 310 being simultaneously automatically locked.

The first side wall 210 is received by disengaging the latch on the first side wall 210 from the latch tube 116, then positioning the latch handle 511 within the first latch handle detent 521 of the latch base 520, then rotating the first side wall 210 to the flat position, and then moving the first side wall 210 to the received position.

The step of accommodating the second sidewall 220 is substantially the same as the step of accommodating the first sidewall 210, and will not be described again.

When the second side wall 220 is moved to the storage position, the first side wall 210 and the second side wall 220 are simultaneously locked. The principle of simultaneous locking of the first side wall 210 and the second side wall 220 is substantially the same as that of simultaneous locking of the first end wall 310 and the second end wall 320, and will not be described again.

The present application has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the application to the embodiments described. In addition, it will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the application, which variations and modifications are within the scope of the application as claimed. The scope of the application is defined by the appended claims and equivalents thereof.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the application. Terms such as "component" as used herein may refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like as used herein may refer to one component being directly attached to another component or to one component being attached to another component through an intermediary. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

Claims

1. A pallet box, characterized in that the pallet box comprises:

A chassis, comprising:

a load-bearing portion; and

A supporting member, the supporting member being located below the bearing portion, with two supporting members being arranged in parallel; and

a wall body, wherein the bottom end of the wall body has two wall pivot axes, the two wall pivot axes protruding outward in opposite directions, the wall body is pivotally connected to the support member between an upright position and a flat position around the wall pivot axes, and is movably coupled to the support member via the first end of the support member along the length direction of the support member between the flat position and the storage position;

The wall body includes a side wall and an end wall, the axis of the end wall pivot axis of the end wall is parallel to the first horizontal direction, and the axis of the side wall pivot axis of the side wall is parallel to the second horizontal direction,

The support members include side support members and end support members, wherein the length direction of the side support members is parallel to the first horizontal direction for supporting the side walls, and the length direction of the end support members is parallel to the second horizontal direction for supporting the end walls, and the side support members and the end support members are sequentially arranged along the height direction of the chassis;

The side wall includes a first side wall and a second side wall, and the side support member includes a first support member and a second support member sequentially arranged along the height direction of the chassis to support the first side wall and the second side wall respectively, and the first end of the first support member and the first end of the second support member are respectively located at two ends of the chassis along the first horizontal direction.

The end wall includes a first end wall and a second end wall, the end support member includes a third support member and a fourth support member sequentially arranged along the height direction of the chassis to support the first end wall and the second end wall respectively, and the first end of the third support member and the first end of the fourth support member are respectively located at two ends of the chassis along the second horizontal direction;

The chassis further comprises a linkage member and a linkage shaft located in the chassis, wherein the linkage member is rotatably arranged between a stop position and a rest position via the linkage shaft.

When one of the side walls moves to the storage position, the linkage member can be pushed to the stop position to enter above the bottom wall of the support member for supporting the other side wall, so that the linkage member can block the other side wall located in the storage position, and/or

When one of the end walls moves to the storage position, the linkage member can be pushed to the stop position to enter above the bottom wall of the support member for supporting the other end wall, so that the linkage member can block the other end wall located in the storage position.

2. The pallet box according to claim 1 is characterized in that the chassis is further provided with a positioning block, which is fixedly connected to the support member and is located at an end of the support member away from the first end, so as to block the wall located at the storage position.

3. The pallet box according to claim 1, wherein the chassis is further provided with a limit stop, wherein the limit stop is fixedly provided at the first end to prevent the wall pivot axis from leaving the support member.

4 . The pallet box according to claim 3 , wherein at least one of the two limit stops located at the two supporting members for supporting one wall is detachably provided.

5. The pallet box according to claim 1 is characterized in that the chassis further includes a limiting member and a limiting shaft, the limiting member is located above the supporting member, the limiting member is pivotally arranged between a limiting position and a leaving position by the limiting shaft, and when the limiting member is in the limiting position, the minimum dimension between the end portion of the limiting member away from the first end and the supporting member bottom wall of the supporting member is smaller than the thickness of the wall body, so that the limiting member can prevent the wall body in the storage position from moving toward the first end.

6. The pallet box according to claim 5, characterized in that:

The wall body has a guide surface, and along the height direction of the wall body, the guide surface is located on the side of the wall body lower beam close to the wall body upper beam and connected to the wall body lower beam, and the end of the guide surface away from the wall body upper beam is flush with the box inner surface of the wall body, and the guide surface is inclined in the height direction of the wall body. Along the thickness direction of the wall body, the end of the guide surface away from the wall body upper beam is closer to the inner side of the wall body than the other end close to the wall body upper beam.

When the wall body is located in the storage position, the guide surface is located at the limiting member along the width direction of the wall body. During the process of the wall body moving from the storage position to the flat position, the guide surface is used to guide the movement of the limiting member to avoid the limiting member blocking the lower beam of the wall body.

7. The pallet box according to claim 1, wherein the chassis further comprises a fork-lifting portion, the fork-lifting portion is located below the load-bearing portion, and a slideway gap exists between the fork-lifting portion and the load-bearing portion, and the support member is located in the slideway gap.

8. The pallet box according to claim 7 is characterized in that the corners of the chassis are provided with force transmission parts, and the force transmission parts include an upper force transmission part, a horizontal force transmission part, and a lower force transmission part. The horizontal force transmission part is horizontally arranged and fits the lower surface of the higher one of the side support member and the end support member. The upper force transmission part and the lower force transmission part are both parallel to the height direction of the chassis and are connected to the horizontal force transmission part. The upper force transmission part is located on the outside of the horizontal force transmission part and is connected to the bearing part. The lower force transmission part is located on the outside of the horizontal force transmission part and is connected to the fork-lifting part. The lower force transmission part and the upper force transmission part are perpendicular to each other.

9. The pallet box according to claim 8, characterized in that the corners of the load-bearing part are provided with first stacking blocks, the corners of the fork-lifting part are provided with supporting legs, the upper force transmitting part is connected to the frame of the load-bearing part and the first stacking blocks, and the lower force transmitting part is connected to the supporting legs.

10. The pallet box according to claim 9, wherein the end wall has a second stacking block connected to the end column of the end wall, and when the pallet box is in an assembled state, a portion of the second stacking block is overlapped with the first stacking block.

11. The pallet box according to claim 10, wherein the end wall further comprises an anti-expansion barrier wall, and when the pallet box is in the assembled state, the anti-expansion barrier wall is located inside a portion of the first stacking block.

12. The pallet box according to claim 8, wherein the force transmission member has a long connecting plate avoidance groove, and when the pallet box is in an assembled state, the lower end of the end wall is located in the long connecting plate avoidance groove.

13. The pallet box according to claim 1, characterized in that

The pallet box further includes a latch, which is movably connected to the side wall along the height direction of the side wall. The side wall lower beam of the side wall has a first retaining hole, and the load-bearing portion side beam of the load-bearing portion has a second retaining hole. When the side wall is in the upright position, the latch can pass through the first retaining hole and the second retaining hole in sequence to maintain the side wall in the upright position.

14. The pallet box according to claim 1, wherein corners of the bearing portion have avoidance portions, and when the pallet box is in an assembled state, side columns of the side walls are located in the avoidance portions.

15. The pallet box according to claim 1, characterized in that

The side column of the side wall has an end surface away from the center of the side wall along the width direction of the side wall, and the end column of the end wall is provided with a connecting pin. The connecting pin protrudes from the inner surface of the end wall along the thickness direction of the end wall. When the pallet box is in an assembled state, the connecting pin enters the connecting hole to prevent the end wall from moving up and down relative to the side wall.

16. The pallet box according to claim 1, characterized in that

When the pallet box is in an assembled state, the position height of the end wall upper beam of the end wall is higher than the position height of the side wall upper beam, and a third stacking block is provided at the top end of the end column of the end wall.