CN111874404B

CN111874404B - Dual-purpose stacked folding box based on combination of detachable laying upright post and hinge

Info

Publication number: CN111874404B
Application number: CN202010680949.6A
Authority: CN
Inventors: 刘积智
Original assignee: Dandong Riqian Logistics Equipment Co ltd
Current assignee: Dandong Riqian Logistics Equipment Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2024-05-31
Anticipated expiration: 2040-07-15
Also published as: CN111874404A

Abstract

The invention discloses a dual-purpose stacked folding box based on combination of a detachable dumping upright post and a hinge, which comprises a chassis and four doors respectively vertically connected to four sides of the chassis, wherein a front door and a rear door are detachably and foldably embedded into fixing grooves arranged at four corners of the chassis through the upright post and a jogging body, and a left door and a right door are connected to the left side and the right side of the chassis through the hinge; a stacking positioning block is also fixed below each fixing groove on the chassis; the top of each upright post is provided with a first stacking groove, the bottom surface of each stacking positioning block is provided with a second stacking groove, and each second stacking groove is provided with a stacking protruding block; the top of each fixing groove is also provided with a fixing groove stacking protrusion aligned with the second stacking groove in the vertical direction. The invention is convenient to fold, and the logistics boxes can be closely stacked up and down no matter in an upright state or a folding state, so that the logistics boxes are more attached and stable compared with the prior art.

Description

Dual-purpose stacked folding box based on combination of detachable laying upright post and hinge

Technical Field

The invention relates to the logistics turnover industry, in particular to a box body device for carrying, loading, unloading and transporting turnover of nonmetal raw material blocks such as rubber, chemical fiber and the like.

Background

The folding box or the logistics box is generally used for carrying, loading and unloading nonmetal raw material blocks such as rubber, chemical fiber and the like and transporting and turnover, and generally comprises a chassis, front and rear doors and left and right doors.

In the prior art, when front and back door is installed with the chassis, after two bolts are all needed to be smeared with the binder at the lower end of each front and back door, the bolts are screwed in through manual operation, and because the front and back door is heavier, at the same time, because the bolts are arranged at the bottom, at least two persons are needed to finish the operation, and when the front and back door is maintained, the bolts are unscrewed one by one after the heating, baking and solidification of the binder is needed, and the front and back door can be taken down.

In the prior art, the left door and the right door are linked with the chassis through the fork shaft and the bolts, and due to the structural size, the diameter of the fork shaft is small, although the fork shaft is made of a high-strength material, the operation of opening and closing is performed all year round, the practical situation is that the deformation is serious, the service life is influenced, and the left door panel and the right door panel are needed to be pressed and avoided at the intersection of the fork shaft, so that the protection effect of preventing rubber scraps is achieved, but the processing and pressing procedure is complex, and the labor and the time are wasted.

In the prior art, the chassis adopts a Z-shaped contour plate belt with the thickness of 3.0mm in four dimensions, and is made of high-strength materials, but the structural size is larger and the deformation is easy after all, so that the chassis adopts a plurality of vertical pipes for reinforcement, the design is stiff and complicated, the upper part of the Z-shaped structure is still a single piece of reinforcement-free support after all, and the chassis only blocks the outward movement of a large door and a right door by a so-called (high-strength plate) with the thickness of 3mm, so that the strength is slightly insufficient.

In the prior art, the metal box is stacked after being folded or stacked after being carried, and the difficulty is quite high when an operator operates due to the fact that stacking pieces are too small. Because the design of the stacking piece is limited by the inner and outer dimensions of the box body, the stacking piece is not increased in size, so that the stacking piece becomes a big and difficult problem in the industry, and the feedback modification will of the user is strong.

In the prior art, the operation is complicated to finish the erection of the folding box. In the folded state, when the front door and the rear door are manually lifted to be in the vertical state from the folded state, the front door and the rear door are not vertically positioned and are inclined outwards by a certain angle due to the positioning structure, after the left door and the right door are opened and are vertically arranged, the left door and the right door are required to be supported by one hand, the other hand is used for holding the front door and the rear door to rotate inwards, meanwhile, the left door and the right door are supported by the other hand, the rotary buckling lock on the left door and the right door is required to be opened, and after the left door and the right door are closed by the front door and the rear door, the left door and the right door buckling lock are loosened and adjusted, and the operation on one side can be finished after the buckling. Then, when the locking of the lockset on the other side of the same left and right doors and the front and rear doors on the other side is operated, the other side of the left and right doors needs to be pushed inwards for a certain distance due to dislocation, the lockset is forcefully lifted and cannot be put on hand, the other hand pulls the other front and rear doors inwards to be close, and after the lockset is aligned to the position, the lockset can be locked.

When the left and right doors on the other side are unlocked, the double is encountered, and at this time, the front and rear doors are locked with the left and right doors on the first piece and stand upright, and the buckling locks on the two ends need to be forced, turned over and opened, and then buckled after alignment. Since it is basically impossible to operate two locks simultaneously, only one by one is possible, but this is a problem: when the second left and right doors are turned to a nearly upright state, a front and back door and a left and right door lock are needed; when the second lock of the second left and right doors is unlocked, the lockset is in a leg-holding state, the left and right doors need to be pushed inwards by one hand, the lock plate buckle needs to be lifted by the other hand, the hand for moving the plate buckle needs to be exchanged at the moment, then the front and rear doors are righted by the other hand, and after alignment, the lockset is buckled. The process is seen to be very complex.

Disclosure of Invention

The invention aims to provide a box body for solving the problems in the background art.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the invention actually comprises a plurality of technical schemes and solves different technical problems. All technical schemes include the chassis and respectively vertical four doors of connecting in four limits on chassis, and the front door is installed in the front of chassis, and the left side door is installed in the left of chassis, and the right door is installed in the right of chassis, but specific form can be different:

scheme 1: folding box based on can dismantle stand of falling down: in this embodiment, at least one door is mounted to the chassis in a manner described below (referring to the general description below of embodiment 14) for mounting the rear door. When one door is installed on its corresponding side according to the following installation mode of the rear door, the two ends of the side are provided with the following fixing grooves. Under this kind of scheme, this door can conveniently dismantle, can conveniently put down folding, but be difficult for under the general circumstances to drop.

Scheme 2: openable logistics box of door leaf: this corresponds to a box in which the door leaf itself is openable, such as the front door described below. The door leaves of other doors may be mounted so as to be openable in the following manner of the front door, but the concrete form of the fixing groove, the upright post, and the fitting body is not emphasized, and the upright post may be fixedly fitted or fitted in the following manner only by being mounted on the fixing groove by the fitting body so as to drive the door leaves.

Scheme 3: hinge-based self-locking folding box: this corresponds to the mounting of the left and right doors, and in a folding box at least one door is mounted to the folding box in the manner described below for the mounting of the left door. In this installation form, the door is foldable and its lock can be self-locking.

Scheme 4: stackable logistics box: this only includes stacking techniques with the logistics box standing upright, corresponding to the corresponding stacking of the first stacking recess and stacking projection described below.

Scheme 5: stackable folding box: this includes stacking techniques with the folding box folded, corresponding to the corresponding stacking of the fixing grooves and the stacking tabs described below. At this time, the upright post can be detached from the fixing groove, so that the door can be placed into the box to realize folding after the upright post is detached.

Scheme 6: folding box with openable door leaf: the front door comprises a scheme 1+a scheme 2, wherein a detachable and foldable technical scheme is adopted between the fixed groove and the upright post of the front door, the front door leaf can be opened, and at least or all four doors can be arranged on the chassis according to the scheme.

Scheme 7: folding box based on can dismantle stand and hinge combination of falling: this includes 1+ scheme 3 where the front and rear doors are secured to the chassis in a removable knock down post and the left and right doors are secured to the chassis in a hinged fashion, but does not include the specific form of lock.

Scheme 8: self-locking folding box based on combination of detachable laying upright post and hinge: this includes 1+ scheme 3, where the front and rear doors are secured to the chassis in a removable knock down post, and the left and right doors are secured to the chassis in a hinged manner, including the specific form of left and right door locks.

Scheme 9: door leaf openable folding box based on combination of detachable dumping upright posts and hinges: this includes scheme 6+ scheme 3, where the folding box can be folded as well as the door leaf opened.

Scheme 10: door leaf openable and self-locking folding box based on combination of detachable upright post and hinge: this includes scheme 8+ scheme 9.

Scheme 11: a dual-purpose stacked folding box. This includes scheme 4+ scheme 5 where the folding box can be stacked in either an upright or folded condition.

Scheme 12: a stacking type folding box based on combination of a detachable falling upright post and a hinge. This includes scheme 7+ scheme 5.

Scheme 13: a dual-purpose stacked folding box based on combination of a detachable falling upright post and a hinge. This includes scheme 7+ scheme 11.

Scheme 14: an integrated folding box. This includes scheme 1+scheme 2+scheme 3+scheme 4+scheme 5.

The general scheme of the present invention (scheme 14 in practice) is described below, and all of the above schemes are determined according to the specific descriptions of the schemes in combination with the following descriptions:

The invention comprises a chassis, a front door, a rear door, a left door and a right door which are respectively and vertically connected with four sides of the chassis; the four corners of the chassis are respectively provided with a fixing groove, namely a rear left fixing groove, a rear right fixing groove, a front left fixing groove and a front right fixing groove;

the rear door comprises a rear left upright post, a rear right upright post and a rear door leaf fixed between the rear left upright post and the rear right upright post;

The bottom of the rear left upright post is connected with a rear left jogged body which is embedded in the rear left fixing groove;

the bottom of the rear right upright post is connected with a rear right jogged body which is embedded in the rear right fixing groove;

The rear left fixing groove comprises a rear left bottom plate, a rear left side plate vertically connected to the left side of the rear left bottom plate, a rear left side plate and a rear left side plate vertically connected to the right side of the rear left bottom plate, and a rear left rear side plate vertically connected to the rear side of the rear left bottom plate; the right side surface of the rear left side plate is provided with a vertical rear left chute, the top width of the rear left chute is d1, the middle width of the rear left chute is d2, and the bottom width of the rear left chute is d3;

The top of the left side surface of the rear left jogged body is convexly provided with a rear left top boss, and the top end of the rear left top boss is connected with the bottom surface of the rear left upright post; the bottom of the left side surface of the rear left jogged body is convexly provided with a rear left bottom boss; the width of the rear left top boss in the front-rear direction is d1; the rear left bottom boss is a short cylinder with a small angle and a diameter d5 cut by the rear left cutting inclined plane; the maximum width of the rear left bottom boss in the direction perpendicular to the rear left cutting inclined plane is d1, and the maximum width of the rear left bottom boss in the front-rear direction is d4;

d1, d2, d3, d4, d5 satisfy the following formula: d1 is more than or equal to d4 and less than or equal to d5 and less than or equal to d3 and less than d2;

When the rear left jogging body is embedded in the rear left fixing groove, the rear left bottom boss is positioned at the bottom of the rear left sliding groove, and the rear left top boss is embedded at the top of the rear left sliding groove;

the rear right fixing groove comprises a rear right bottom plate, a rear right side plate vertically connected to the right side of the rear right bottom plate, a rear right left side plate vertically connected to the left side of the rear right bottom plate, and a rear right rear side plate vertically connected to the rear side of the rear right bottom plate; the left side surface of the rear right side plate is provided with a vertical rear right chute, the top width of the rear right chute is d1, the middle width of the rear right chute is d2, and the bottom width of the rear right chute is d3;

The top of the right side surface of the rear right jogged body is convexly provided with a rear right top boss, and the top end of the rear right top boss is connected with the bottom surface of the rear right upright post; the bottom of the right side surface of the rear right jogged body is convexly provided with a rear right bottom boss; the width of the rear right top boss in the front-rear direction is d1; the rear right bottom boss is a short cylinder with a small angle and a diameter d5 cut by the rear right cutting inclined plane; the maximum width of the rear right bottom boss in the direction perpendicular to the rear right cutting inclined plane is d1, and the maximum width of the rear right bottom boss in the front-rear direction is d4;

When the rear right jogging body is embedded in the rear right fixing groove, the rear right bottom boss is positioned at the bottom of the rear right sliding groove, and the rear right top boss is embedded at the top of the rear right sliding groove;

A horizontal rear lower jogging strip is connected between the rear left fixing groove and the rear right fixing groove, and a rear upper jogging strip is fixed at the bottom of the rear door leaf; the rear side of the top surface of the rear lower jogging strip is vertically upwards provided with a rear lower jogging bulge, and the rear side of the bottom surface of the rear upper jogging strip is provided with a rear upper jogging recess;

when the rear left jogged body is embedded in the rear left fixed groove and the rear right jogged body is embedded in the rear right fixed groove, the rear lower jogged bulge is jogged in the rear upper jogged dent;

the front door comprises a front left upright post, a front right upright post and a front door leaf positioned between the front left upright post and the front right upright post; the edge of the front door leaf protrudes forward to form a front frame, and the front frame comprises a front upper frame with the upper end horizontal, a front left frame with the left end vertical and a front right frame with the right end vertical;

The left end of the front upper frame extends out of the left limiting piece, and the right end of the front upper frame extends out of the right limiting piece; the front surface of the top end of the front left upright post is provided with a left limit groove, and the front surface of the top end of the front right upright post is provided with a right limit groove; the left limiting piece is embedded in the left limiting groove from front to back, and the right limiting piece is embedded in the right limiting groove from front to back;

A first front left lock hole is formed in the right side surface of the top of the front left upright post; the top end of the front left frame is provided with a second front left lock hole which is horizontally communicated with the first front left lock hole; the bottom end of the left part of the front upper frame is connected with a vertical front left lock fixing plate, and a third front left lock hole which is horizontally communicated with the second front left lock hole is formed in the front left lock fixing plate;

The front left lockset comprises a front left lockset upper lock rod and a front left lockset lower lock rod which are vertically connected with the end parts; the upper lock rod of the front left lock sequentially passes through the third front left lock hole and the second front left lock hole from right to left and then is embedded into the first front left lock hole; the side wall of the upper lock rod of the front left lock is provided with a convex front left lock boss, and a front left spring is arranged between the front left lock boss and the front left lock fixing plate;

A first front right lock hole is formed in the left side surface of the top of the front right upright post; the top end of the front right frame is provided with a second front right lock hole which is horizontally communicated with the first front right lock hole; the bottom end of the right part of the front upper frame is connected with a vertical front right lock fixing plate; a third front right lock hole which is horizontally communicated with the second front right lock hole is formed in the front right lock fixing plate;

The front right lockset comprises a front right lockset upper lock rod and a front right lockset lower lock rod which are vertically connected with the end parts; the upper lock rod of the front right lock sequentially passes through the third front right lock hole and the second front right lock hole from left to right and then is embedded into the first front right lock hole; a front right lock boss is arranged on the side wall of the upper lock rod of the front right lock, and a front right spring is arranged between the front right lock boss and the front right lock fixing plate;

the bottom of the front left upright post is connected with a front left jogged body which is embedded in the front left fixing groove;

the bottom of the front right upright post is connected with a front right jogged body which is embedded in the front right fixed groove;

the front left fixing groove comprises a front left bottom plate, a front left side plate vertically connected to the left side of the front left bottom plate, a front left side plate and a front right side plate vertically connected to the right side of the front left bottom plate, and a front left front side plate vertically connected to the front side of the front left bottom plate; the right side surface of the front left side plate is provided with a vertical front left chute, the top width of the front left chute is d1, the middle width of the front left chute is d2, and the bottom width of the front left chute is d3;

The top of the left side surface of the front left jogged body is convexly provided with a front left top boss, and the top end of the front left top boss is connected with the bottom surface of the front left upright post; the left side surface bottom of the front left jogged body is convexly provided with a front left bottom boss; the width of the front left top boss in the front-rear direction is d1; the front left bottom boss is a short cylinder with a small angle and a diameter d5 cut by the front left cutting inclined plane; the maximum width of the front left bottom boss in the direction perpendicular to the front left cutting inclined plane is d1, and the maximum width of the front left bottom boss in the front-rear direction is d4;

When the front left jogging body is embedded in the front left fixing groove, a front left bottom boss is positioned at the bottom of the front left sliding groove, and a front left top boss is embedded at the top of the front left sliding groove;

The front right fixing groove comprises a front right bottom plate, a front right side plate vertically connected to the right side of the front right bottom plate, a front right left side plate vertically connected to the left side of the front right bottom plate, and a front right front side plate vertically connected to the front side of the front right bottom plate; the left side surface of the front right side plate is provided with a vertical front right chute, the top width of the front right chute is d1, the middle width of the front right chute is d2, and the bottom width of the front right chute is d3;

the top of the right side surface of the front right jogged body is convexly provided with a front right top boss, and the top end of the front right top boss is connected with the bottom surface of the front right upright post; the bottom of the right side surface of the front right jogged body is convexly provided with a front right bottom boss; the width of the front right top boss in the front-rear direction is d1; the front right bottom boss is a short cylinder with a small angle and a diameter d5 cut by the front right cutting inclined plane; the maximum width of the front right bottom boss in the direction perpendicular to the front right cutting inclined plane is d1, and the maximum width of the front right bottom boss in the front-rear direction is d4;

when the front right jogging body is embedded in the front right fixing groove, a front right bottom boss is positioned at the bottom of the front right sliding groove, and a front right top boss is embedded at the top of the front right sliding groove;

a horizontal front lower jogging strip is connected between the front left fixing groove and the front right fixing groove, and a front upper jogging strip is connected between the bottom end of the front left upright post and the bottom end of the front right upright post; the front side of the top surface of the front lower jogging strip is vertically upwards provided with a front lower jogging bulge, and the front side of the bottom surface of the front upper jogging strip is provided with a front upper jogging recess;

when the front left jogged body is embedded in the front left fixed groove and the front right jogged body is embedded in the front right fixed groove, the front lower jogged bulge is jogged in the front upper jogged dent;

The bottom of the front door leaf is provided with a front door leaf fixing strip, and a convex strip arranged at the top of the front upper jogging strip is embedded into a concave strip arranged at the bottom of the front door leaf fixing strip;

the left door comprises a left door leaf, a first left connecting sleeve is arranged at the bottom end of the left door leaf, a second left connecting sleeve is arranged at the left side edge of the chassis, and the first left connecting sleeve is hinged through a left pin shaft after being axially communicated with the second left connecting sleeve;

the edge of the left door leaf protrudes to the left to form a left frame, and the left frame comprises a left upper frame with a horizontal upper part, a left rear frame with a vertical rear side and a left front frame with a vertical front side;

The front side surface of the top of the rear left upright post is provided with a first left rear lock hole, and the rear side surface of the top of the front left upright post is provided with a first left front lock hole; the top end of the left rear frame is provided with a second left rear lock hole which is horizontally communicated with the first left rear lock hole, and the top end of the left front frame is provided with a second left front lock hole which is horizontally communicated with the first left front lock hole;

the bottom end of the rear part of the left upper frame is connected with a vertical left rear lock fixing plate, and the bottom end of the front part of the left upper frame is connected with a vertical left front lock fixing plate; a third left rear lock hole which is horizontally communicated with the second left rear lock hole is formed in the left rear lock fixing plate; a third left front lock hole which is horizontally communicated with the second left front lock hole is formed in the left front lock fixing plate;

the left rear lock comprises a left rear lock upper lock rod and a left rear lock lower lock rod which are vertically connected at the end parts; the rear end face of the upper lock rod of the left rear lock is a sliding inclined plane;

The upper lock rod of the left rear lock sequentially passes through the third left rear lock hole and the second left rear lock hole from front to back and is embedded in the first left rear lock hole; the side wall of the upper lock rod of the left rear lock is provided with a convex left rear lock boss, and a left rear spring is arranged between the left rear lock boss and the left rear lock fixing plate;

the left front lock comprises a left front lock upper lock rod and a left front lock lower lock rod which are vertically connected at the end parts; the front end face of the upper lock rod of the left front lock is a sliding inclined plane;

The upper lock rod of the left front lock sequentially passes through the third left front lock hole and the second left front lock hole from back to front and is embedded in the first left front lock hole; the left front lock is provided with a left front lock boss on the side wall of the upper lock rod, and a left front spring is arranged between the left front lock boss and the left front lock fixing plate;

The front side of the left end of the rear left upright post is also fixed with a vertical rear left limiting plate, the rear side of the left end of the front left upright post is also fixed with a vertical front left limiting plate, and the left side of the second left connecting sleeve is also provided with a left door limiting plate vertically connected with the left side edge of the chassis;

the left door leaf is limited on the right sides of the rear left limiting plate, the front left limiting plate and the left door limiting plate;

a rear left limiting opening is formed in the rear left limiting plate, a rear left protruding block is protruding from the left side surface of the left rear frame, and the rear left protruding block is embedded into the rear left limiting opening from right to left;

A front left limiting opening is formed in the front left limiting plate, a front left protruding block is protruding from the left side surface of the left front frame, and the front left protruding block is embedded into the front left limiting opening from right to left;

The right door comprises a right door leaf, a first right connecting sleeve is arranged at the bottom end of the right door leaf, a second right connecting sleeve is arranged at the right side edge of the chassis, and the first right connecting sleeve is hinged with the second right connecting sleeve through a right pin shaft after being axially communicated with the second right connecting sleeve;

the edge of the right door leaf protrudes to the right to form a right frame, and the right frame comprises a right upper frame with a horizontal upper part, a right rear frame with a vertical rear side and a right front frame with a vertical front side;

the front side surface of the top of the rear right upright post is provided with a first right rear lock hole, and the rear side surface of the top of the front right upright post is provided with a first right front lock hole; the top end of the right rear frame is provided with a second right rear lock hole which is horizontally communicated with the first right rear lock hole, and the top end of the right front frame is provided with a second right front lock hole which is horizontally communicated with the first right front lock hole;

The bottom end of the rear part of the right upper frame is connected with a vertical right rear lock fixing plate, and the bottom end of the front part of the right upper frame is connected with a vertical right front lock fixing plate; a third right rear lock hole which is horizontally communicated with the second right rear lock hole is formed in the right rear lock fixing plate; a third right front lock hole which is horizontally communicated with the second right front lock hole is formed in the right front lock fixing plate;

the right rear lock comprises a right rear lock upper lock rod and a right rear lock lower lock rod which are vertically connected at the end parts; the rear end face of the upper lock rod of the right rear lock is a sliding inclined plane;

the upper lock rod of the right rear lock sequentially passes through the third right rear lock hole and the second right rear lock hole from front to back and is embedded in the first right rear lock hole; a convex right rear lock boss is arranged on the side wall of the upper lock rod of the right rear lock, and a right rear spring is arranged between the right rear lock boss and the right rear lock fixing plate;

the right front lock comprises a right front lock upper lock rod and a right front lock lower lock rod which are vertically connected at the end parts; the front end face of the upper lock rod of the right front lock is a sliding inclined plane;

The upper lock rod of the right front lock sequentially passes through the third right front lock hole and the second right front lock hole from back to front and is embedded in the first right front lock hole; a right front lock boss is arranged on the side wall of the upper lock rod of the right front lock, and a right front spring is arranged between the right front lock boss and the right front lock fixing plate;

The front side of the right end of the rear right upright post is also fixed with a vertical rear right limiting plate, the rear side of the right end of the front right upright post is also fixed with a vertical front right limiting plate, and the right side of the second right connecting sleeve is also provided with a right door limiting plate vertically connected with the right edge of the chassis; the right door leaf is limited on the left sides of the rear right limiting plate, the front right limiting plate and the right door limiting plate;

A rear right limiting opening is formed in the rear right limiting plate, a rear right protruding block is protruding from the right side surface of the right rear frame, and the rear right protruding block is embedded into the rear right limiting opening from left to right; the front right limiting plate is provided with a front right limiting opening, the right side surface of the right front frame is provided with a front right protruding block in a protruding mode, and the front right protruding block is embedded into the front right limiting opening from left to right;

The top edges of the front door leaf, the rear door leaf, the left door leaf and the right door leaf are all positioned on the same horizontal plane; the tops of the rear left upright post, the rear right upright post, the front left upright post and the front right upright post are higher than the horizontal plane, and a first stacking groove is formed in the upper surface of the top; a stacking positioning block is also fixed below each fixing groove on the chassis; the bottom surface of each stacking positioning block is provided with a second stacking groove, and each second stacking groove is provided with a stacking protruding block aligned with the first stacking groove in the vertical direction; the top of each fixing groove is also provided with a fixing groove stacking protrusion aligned with the second stacking groove in the vertical direction.

One end of the left pin shaft is tightly fixed in the first left connecting sleeve through the left pin shaft boss, and the other end of the left pin shaft is arranged in the second left connecting sleeve in a sliding manner.

One end of the right pin shaft is tightly fixed in the first right connecting sleeve through the right pin shaft boss, and the other end of the right pin shaft is arranged in the second right connecting sleeve in a sliding manner.

The bottom of the rear surface of the left door leaf is provided with a convex rear left limiting convex block; the bottom of the front surface of the left door leaf is provided with a convex front left limiting convex block.

The bottom of the rear surface of the right door leaf is provided with a convex rear right limiting convex block; the bottom of the front surface of the right door leaf is provided with a convex front right limiting convex block.

All the technical solutions described above have the following advantages over the prior art:

1. Folding is convenient:

the left and right doors can be laid down in the box by rotating the left and right door locks by pulling the left and right door locks inward. The pin shaft is designed to be a special function, and penetrates into two coaxial sleeves of the left door, the right door and the chassis. During installation, the pin shaft is embedded from one end, the front end is free from a boss and can smoothly enter, and when the rear end reaches the boss position, the pin shaft is in interference fit with the sleeve system, namely, one sleeve is extruded by the boss and then is deformed locally and is expanded, so that the backstop effect is achieved. The hinge has the characteristics of ingenious structure, simple installation, firm connection, convenient disassembly and convenient maintenance.

For the front and rear doors, the front and rear doors can be put down in the box by slightly lifting the front and rear doors. In general, the engaging bodies at the bottoms of the front and rear doors are not easily separated from the fixing grooves, so that accidental separation can be prevented in general. But by rotating the jogging body to a specific angle, the front and rear doors can be detached from the chassis, so that the front and rear doors can be maintained. In a word, the front and back door can be upright, can lay down, can abduct to stand obliquely, can take off from the chassis more, and is convenient for loading and unloading and maintenance.

2. The lockset is convenient and effective to fix:

The limit piece (left limit piece and right limit piece) is arranged beside the lockset of the front door leaf, and the limit piece is limited with the upright post, so that the front door leaf can be prevented from falling into the box to scratch the inside of the left door and the right door after the lockset is opened.

The end faces of the locks of the left door and the right door are provided with sliding inclined planes, so that the locks can be self-locked to the upright posts through the sliding inclined planes when the locks are lifted and fixed, and the locks do not need to be manually pulled; in addition, the locks at the upper parts of the left door and the right door are spring locks, the natural state is a locking state, namely the end parts of the locks extend out a certain distance, and in the normal case, when the locks are in the locking state, the end parts of the locks are deep into the upright posts, because the locks extend out under the action of springs only by loosening hands even after the left door and the right door are opened due to the spring relation, and if misoperation is carried out, the inner buckles of the left door and the right door can scratch or even tear the inner panels of the front door and the rear door. The bottoms of the two side surfaces of the left door leaf and the right door leaf are provided with the limiting protruding blocks, so that the left door leaf and the right door leaf are separated from the front door and the rear door by a certain distance, and the protruding locks of the left door leaf and the right door leaf can not reach the inner walls of the front door and the rear door, thereby achieving the purpose of keeping away from scratches.

3. The front door leaf can be opened:

under the condition of standing, the front door leaf is sometimes required to be opened to put in or take out goods, or to observe the interior, and the whole front door is not required to be detached, and the front door leaf can be detached by only pulling the lockset of the front door leaf inwards and then lifting or slightly rotating the front door leaf and then lifting. Under the carrying state, as the rubber and other raw materials have soft falling properties, after goods are stored for a period of time, the chassis and four walls are extruded, under the tensioning state, the front door lock can be opened, and as the bottom of the front door leaf is in a rotatable meshing relationship, the front door leaf can be outwards rotated by utilizing tensioning force so as to be conveniently and smoothly taken down, and free goods taking of a person or a robot is realized, and at the moment, the other three side faces are still in a locking state.

4. Double stacking control and double stacking design are further bright points of the folding metal box.

Under the empty folding state of the box, stacking can be realized through the cooperation of a stacking positioning block arranged at the bottom of the chassis and the top of the fixing groove. The inclined planes in the two vertical directions of the second stacking groove are tightly matched with the two side surfaces at the top of the fixed groove and are in bidirectional limit, so that stacking is realized, the butt joint space is large, and after falling, the fit clearance is small, thereby completely overcoming the defect of loose falling layers.

Under the condition of carrying a falling layer, the stability of the falling layer is important due to the heavy carrying and the dead weight of the folding box. Between every two folding boxes of stacking, the first recess that stacks in stand top of lower floor's case sets up trapezoidal faying surface of inclined plane, agrees with the protruding piece of stacking of upper tank chassis foot, simultaneously, the stand top designs into the corresponding evagination rectangle framework of inclined plane with two perpendicular directions of second stacking groove, from this, has increased gomphosis once more, makes it more stable and firm when falling the layer under the heavy load condition. Meanwhile, the stacking piece is large in size, the target point is clear during stacking, the recognition degree of forklift operators is high, and the problem that many clients always have headache for many years is solved.

In conclusion, the product disclosed by the invention integrally adopts a plurality of modern processing technologies, and has the advantages of neat, bright, attractive and atmospheric appearance. Each hinge point adopts a precision casting process and is engaged and butted in a sliding, rotating, buckling mode and the like. The lock is unique, compact in structure and self-locking and rebounded automatically. Greatly enhances the stability and safety in the transportation process. The frames of the components are made of high-strength materials, so that the bearing capacity is further enhanced. The parts are meshed by adopting special pipes, the edges and corners are clear, the meshing is regular, the whole matching is proper, and the novel storage and transportation product is realized.

Drawings

Fig. 1 is a perspective view from the left front toward the present invention;

fig. 2 is a perspective view from the rear left toward the present invention;

fig. 3 is a perspective view from the rear right toward the present invention;

Fig. 4 is a perspective view from the right front toward the present invention;

FIG. 5 is an enlarged view of block A of FIG. 4;

FIG. 6 is a bottom perspective view of the present invention;

FIG. 7 is an enlarged view of block B of FIG. 6;

fig. 8 is a perspective view from the right front toward the chassis of the present invention;

FIG. 9 is an enlarged view of block C of FIG. 8;

fig. 10 is a perspective view from the rear right toward the chassis of the present invention;

FIG. 11 is an enlarged view of block D of FIG. 10;

FIG. 12 is a rear view of the rear door of the present invention;

FIG. 13 is a right side view of the rear door of the present invention;

FIG. 14 is a left side view of the rear door of the present invention;

FIG. 15 is a front elevational view of the front door of the present invention;

FIG. 16 is an enlarged view of block E of FIG. 15;

FIG. 17 is an enlarged view of box F of FIG. 15;

FIG. 18 is a left side view of the front door of the present invention;

FIG. 19 is an enlarged view of block G of FIG. 18;

FIG. 20 is a front door right side view of the present invention;

FIG. 21 is an enlarged view of block H of FIG. 20;

FIG. 22 is a perspective view of the front door of the present invention;

FIG. 23 is a left side view of the left door of the present invention;

FIG. 24 is a front view of the left door of the present invention;

FIG. 25 is a top view of the left door of the present invention;

FIG. 26 is an enlarged view of block J of FIG. 25;

FIG. 27 is a schematic view of the process of embedding the front left bottom boss into the front left chute of the present invention;

FIG. 28 is a schematic view of the front left chimera of the present invention secured to a front left fixation groove;

FIG. 29 is an enlarged view of box K of FIG. 28;

FIG. 30 is a schematic view of the front left chime of the present invention folded down with the front left upright;

FIG. 31 is a schematic view of the front left chimera of the present invention not being pulled vertically;

FIG. 32 is a schematic view of the stack of the present invention in a folded state;

FIG. 33 is a schematic view of the stack of the present invention in a storage state;

fig. 34 is a schematic view of the connection process of the left pin shaft to the first left connecting sleeve and the second left connecting sleeve according to the present invention.

In the figure:

1. front door, 2, left door, 3, right door, 4, back door, 5, chassis;

111. Front left upright, 112, front right upright, 121, front left bezel, 122, front right bezel, 13, front upper bezel, 131, left limiting tab, 132, right limiting tab, 133, front door leaf, 141, front left lock fixing plate, 1411, front left spring, 1412, front left lock boss, 1413, front left lock upper lock lever, 142, front right lock fixing plate, 1421, front right spring, 1422, front right lock boss, 1423, front right lock upper lock lever, 151, front left chime, 1511, front left top boss, 1512, front left bottom boss, 1521, front right top boss, 1522, front right bottom boss, 152, front right chime, 161, front left limiting plate, 162, front right limiting plate, 171, front left limiting opening, 172, front right limiting opening, 18, front door leaf fixing bar, 19, front upper chime bar;

221. A left rear frame 222, a left front frame 23, a left upper frame 231, a left door leaf 251, a left rear lock up-lock rod 252, a left front lock up-lock rod 261, a rear left protruding block 262, a front left protruding block 271, a left rear spring 272, a left front spring 28, a first left connecting sleeve 29 and a rear left limiting protruding block;

411. rear left upright post 412, rear right upright post 451, rear left chimera 452, rear right chimera 461, rear left limiting plate 462, rear right limiting plate 49, rear upper chimera strip;

51. Front left fixed slot 511, front left bottom plate 512, front left and right side plates 513, front left front side plate 514, front left side plate 515, front left slide slot 52, front right fixed slot 53, back left fixed slot 531, back left bottom plate 532, back left side plate 533, back left back side plate 534, back left and right side plate 535, back left slide slot 54, back right fixed slot 55, second left connecting sleeve 56, left door limiting plate 57, right door limiting plate 58, front lower fitting bar 59, back lower fitting bar;

6. The stacking positioning blocks 61, the first stacking grooves 62, the second stacking grooves 63, the stacking projection blocks 64 and the fixing grooves are stacked and projected.

Detailed Description

The following describes specific embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 34, the general scheme of the present invention includes a chassis 5, a front door 1, a rear door 4, a left door 2, and a right door 3 vertically connected to four sides of the chassis 5, respectively;

the four corners of the chassis 5 are respectively provided with a fixing groove, namely a rear left fixing groove 53, a rear right fixing groove 54, a front left fixing groove 51 and a front right fixing groove 52;

The rear door 4 includes a rear left pillar 411, a rear right pillar 412, and a rear door leaf fixed between the rear left pillar 411 and the rear right pillar 412;

the bottom of the rear left upright 411 is connected with a rear left jogged body 451, and the rear left jogged body 451 is embedded in the rear left fixing groove 53;

The bottom of the rear right upright post 412 is connected with a rear right jogger 452, and the rear right jogger 452 is embedded in the rear right fixing groove 54;

The rear left fixing groove 53 includes a rear left bottom plate 531, a rear left side plate 532 vertically connected to the left side of the rear left bottom plate 531, a rear left and right side plate 534 vertically connected to the right side of the rear left bottom plate 531, and a rear left rear side plate 533 vertically connected to the rear side of the rear left bottom plate 531; the right side surface of the rear left side plate 532 is provided with a vertical rear left chute 535, the top width of the rear left chute 535 is d1, the middle width of the rear left chute 535 is d2, and the bottom width of the rear left chute 535 is d3;

The top of the left side surface of the rear left jogged body 451 is convexly provided with a rear left top boss, and the top end of the rear left top boss is connected to the bottom surface of the rear left upright 411; the left side bottom of the rear left jogged body 451 is convexly provided with a rear left bottom boss; the width of the rear left top boss in the front-rear direction is d1; the rear left bottom boss is a short cylinder with a small angle and a diameter d5 cut by the rear left cutting inclined plane; the maximum width of the rear left bottom boss in the direction perpendicular to the rear left cutting inclined plane is d1, and the maximum width of the rear left bottom boss in the front-rear direction is d4;

When the rear left jogger 451 is embedded in the rear left fixing groove 53, the rear left bottom boss is located at the bottom of the rear left sliding groove 535, and the rear left top boss is embedded at the top of the rear left sliding groove 535;

The rear right fixing groove 54 includes a rear right bottom plate, a rear right side plate vertically connected to the right side of the rear right bottom plate, a rear right left side plate vertically connected to the left side of the rear right bottom plate, and a rear right rear side plate vertically connected to the rear side of the rear right bottom plate; the left side surface of the rear right side plate is provided with a vertical rear right chute, the top width of the rear right chute is d1, the middle width of the rear right chute is d2, and the bottom width of the rear right chute is d3;

the top of the right side surface of the rear right jogged body 452 is convexly provided with a rear right top boss, and the top end of the rear right top boss is connected with the bottom surface of the rear right upright post 412; the bottom of the right side surface of the rear right jogged body 452 is convexly provided with a rear right bottom boss; the width of the rear right top boss in the front-rear direction is d1; the rear right bottom boss is a short cylinder with a small angle and a diameter d5 cut by the rear right cutting inclined plane; the maximum width of the rear right bottom boss in the direction perpendicular to the rear right cutting inclined plane is d1, and the maximum width of the rear right bottom boss in the front-rear direction is d4;

when the rear right jogger 452 is embedded in the rear right fixed slot 54, the rear right bottom boss is positioned at the bottom of the rear right chute, and the rear right top boss is embedded at the top of the rear right chute;

A horizontal rear lower jogging strip 59 is connected between the rear left fixing groove 53 and the rear right fixing groove 54, and a rear upper jogging strip 49 is fixed at the bottom of the rear door leaf; the rear side of the top surface of the rear lower jogging strip 59 is vertically upwards provided with a rear lower jogging bulge, and the rear side of the bottom surface of the rear upper jogging strip 49 is provided with a rear upper jogging recess;

when the rear left fitting body 451 is fitted into the rear left fixing groove 53 and the rear right fitting body 452 is fitted into the rear right fixing groove 54, the rear lower fitting projection is fitted into the rear upper fitting recess;

the front door 1 includes a front left pillar 111, a front right pillar 112, and a front door leaf 133 located between the front left pillar 111 and the front right pillar 112; the edge of the front door leaf 133 protrudes forward to form a front frame, and the front frame comprises a front upper frame 13 with a horizontal upper end, a front left frame 121 with a vertical left end, and a front right frame 122 with a vertical right end;

The left end of the front upper frame 13 extends out of a left limit plate 131, and the right end of the front upper frame 13 extends out of a right limit plate 132; the front surface of the top end of the front left upright post 111 is provided with a left limit groove, and the front surface of the top end of the front right upright post 112 is provided with a right limit groove; the left limiting piece 131 is embedded in the left limiting groove from front to back, and the right limiting piece 132 is embedded in the right limiting groove from front to back;

a first front left lock hole is formed in the right side surface of the top of the front left upright post 111; the top end of the front left frame 121 is provided with a second front left lock hole which is horizontally communicated with the first front left lock hole; the bottom end of the left part of the front upper frame 13 is connected with a vertical front left lock fixing plate 141, and a third front left lock hole which is horizontally communicated with the second front left lock hole is formed on the front left lock fixing plate 141;

the front left lock comprises a front left lock upper lock rod 1413 and a front left lock lower lock rod, wherein the end parts of the front left lock upper lock rod and the front left lock lower lock rod are vertically connected; the front left lock upper lock rod 1413 sequentially passes through the third front left lock hole and the second front left lock hole from right to left and is embedded in the first front left lock hole; the side wall of the upper lock rod 1413 of the front left lock is provided with a convex front left lock boss 1412, and a front left spring 1411 is arranged between the front left lock boss 1412 and the front left lock fixing plate 141;

the left side surface of the top of the front right upright post 112 is provided with a first front right lock hole; the top end of the front right frame 122 is provided with a second front right lock hole which is horizontally communicated with the first front right lock hole; the bottom end of the right part of the front upper frame 13 is connected with a vertical front right lock fixing plate 142; a third front right lock hole horizontally communicated with the second front right lock hole is formed in the front right lock fixing plate 142;

the front right lock comprises a front right lock upper lock rod 1423 and a front right lock lower lock rod which are vertically connected at the end parts; the front right lock upper lock rod 1423 sequentially passes through the third front right lock hole and the second front right lock hole from left to right and then is embedded into the first front right lock hole; a front right lock boss 1422 is arranged on the side wall of the front right lock upper lock rod 1423, and a front right spring 1421 is arranged between the front right lock boss 1422 and the front right lock fixing plate 142;

The bottom of the front left upright 111 is connected with a front left jogged body 151, and the front left jogged body 151 is embedded in the front left fixed groove 51;

the bottom of the front right upright post 112 is connected with a front right jogged body 152, and the front right jogged body 152 is embedded in the front right fixed groove 52;

The front left fixing groove 51 includes a front left bottom plate 511, a front left side plate 514 vertically connected to the left side of the front left bottom plate 511, a front left and right side plate 512 vertically connected to the right side of the front left bottom plate 511, and a front left and front side plate 513 vertically connected to the front side of the front left bottom plate 511; the right side surface of the front left side plate 514 is provided with a vertical front left chute 515, the top width of the front left chute 515 is d1, the middle width of the front left chute 515 is d2, and the bottom width of the front left chute 515 is d3;

The top of the left side surface of the front left jogged body 151 is convexly provided with a front left top boss 1511, and the top end of the front left top boss 1511 is connected with the bottom surface of the front left upright 111; the left side bottom of the front left jogger 151 is convexly provided with a front left bottom boss 1512; the front left top boss 1511 has a width d1 in the front-rear direction; the front left bottom boss 1512 is a short cylinder with a small angle cut by the front left cutting bevel and a diameter d 5; the maximum width of the front left bottom boss 1512 in the direction perpendicular to the front left cut bevel is d1, and the maximum width of the front left bottom boss 1512 in the front-rear direction is d4;

When the front left jogger 151 is embedded in the front left fixed slot 51, the front left bottom boss 1512 is located at the bottom of the front left sliding slot 515, and the front left top boss 1511 is embedded in the top of the front left sliding slot 515;

The front right fixing groove 52 includes a front right bottom plate, a front right side plate vertically connected to the right side of the front right bottom plate, a front right left side plate vertically connected to the left side of the front right bottom plate, and a front right front side plate vertically connected to the front side of the front right bottom plate; the left side surface of the front right side plate is provided with a vertical front right chute, the top width of the front right chute is d1, the middle width of the front right chute is d2, and the bottom width of the front right chute is d3;

The top of the right side surface of the front right jogged body 152 is convexly provided with a front right top boss 1521, and the top end of the front right top boss 1521 is connected with the bottom surface of the front right upright post 112; the bottom of the right side surface of the front right jogged body 152 is convexly provided with a front right bottom boss 1522; the width of the front right top boss 1521 in the front-rear direction is d1; the front right bottom boss 1522 is a short cylinder truncated by the front right cutting bevel by a small angle and having a diameter d 5; the maximum width of the front right bottom boss 1522 in the direction perpendicular to the front right cutting bevel is d1, and the maximum width of the front right bottom boss 1522 in the front-rear direction is d4;

When the front right jogger 152 is embedded in the front right fixed slot 52, the front right bottom boss 1522 is positioned at the bottom of the front right chute, and the front right top boss 1521 is embedded in the top of the front right chute;

A horizontal front lower jogged strip 58 is connected between the front left fixed slot 51 and the front right fixed slot 52, and a front upper jogged strip 19 is connected between the bottom end of the front left upright 111 and the bottom end of the front right upright 112; the front side of the top surface of the front lower jogging strip 58 is vertically upwards provided with a front lower jogging bulge, and the front side of the bottom surface of the front upper jogging strip 19 is provided with a front upper jogging recess;

When the front left fitting body 151 is fitted into the front left fixing groove 51 and the front right fitting body 152 is fitted into the front right fixing groove 52, the front lower fitting projection is fitted into the front upper fitting recess;

The bottom of the front door leaf 133 is provided with a front door leaf fixing strip 18, and a convex strip arranged at the top of the front upper jogging strip 19 is embedded in a concave strip arranged at the bottom of the front door leaf fixing strip 18;

The left door 2 comprises a left door leaf 231, a first left connecting sleeve 28 is arranged at the bottom end of the left door leaf 231, a second left connecting sleeve 55 is arranged at the left side edge of the chassis 5, and the first left connecting sleeve 28 is hinged through a left pin shaft after being axially communicated with the second left connecting sleeve 55;

The edge of the left door leaf 231 protrudes to the left to form a left frame, and the left frame comprises a left upper frame 23 with a horizontal upper part, a left rear frame 221 with a vertical rear side, and a left front frame 222 with a vertical front side;

The front side surface of the top of the rear left upright 411 is provided with a first left rear lock hole, and the rear side surface of the top of the front left upright 111 is provided with a first left front lock hole; the top end of the left rear frame 221 is provided with a second left rear lock hole which is horizontally communicated with the first left rear lock hole, and the top end of the left front frame 222 is provided with a second left front lock hole which is horizontally communicated with the first left front lock hole;

The bottom end of the rear part of the left upper frame 23 is connected with a vertical left rear lock fixing plate, and the bottom end of the front part of the left upper frame 23 is connected with a vertical left front lock fixing plate; a third left rear lock hole which is horizontally communicated with the second left rear lock hole is formed in the left rear lock fixing plate; a third left front lock hole which is horizontally communicated with the second left front lock hole is formed in the left front lock fixing plate;

the left rear lock comprises a left rear lock upper lock rod 251 and a left rear lock lower lock rod which are vertically connected at the end parts; the rear end face of the upper lock rod 251 of the left rear lock is a sliding inclined plane;

The left rear lock upper lock rod 251 sequentially passes through the third left rear lock hole and the second left rear lock hole from front to back and is embedded in the first left rear lock hole; a convex left rear lock boss is arranged on the side wall of the left rear lock upper lock rod 251, and a left rear spring 271 is arranged between the left rear lock boss and the left rear lock fixing plate;

the left front lock comprises a left front lock upper lock rod 252 and a left front lock lower lock rod which are vertically connected at the end parts; the front end surface of the upper lock rod 252 of the left front lock is a sliding inclined surface;

The left front lock upper lock rod 252 sequentially passes through the third left front lock hole and the second left front lock hole from back to front and is embedded in the first left front lock hole; a left front lock boss is arranged on the side wall of the left front lock upper lock rod 252, and a left front spring 272 is arranged between the left front lock boss and the left front lock fixing plate;

the front side of the left end of the rear left upright 411 is also fixed with a vertical rear left limiting plate 461, the rear side of the left end of the front left upright 111 is also fixed with a vertical front left limiting plate 161, and the left side of the second left connecting sleeve 55 is also provided with a left door limiting plate 56 which is vertically connected with the left side edge of the chassis 5;

the left door leaf 231 is limited to the right of the rear left limiting plate 461, the front left limiting plate 161, and the left door limiting plate 56;

A rear left limiting opening is formed in the rear left limiting plate 461, a rear left protruding block 261 is protruding from the left side surface of the left rear frame 221, and the rear left protruding block 261 is embedded into the rear left limiting opening from right to left;

the front left limiting plate 161 is provided with a front left limiting opening 171, the left side surface of the left front frame 222 is provided with a front left protruding block 262 in a protruding mode, and the front left protruding block 262 is embedded in the front left limiting opening 171 from right to left;

The right door 3 comprises a right door leaf, a first right connecting sleeve is arranged at the bottom end of the right door leaf, a second right connecting sleeve is arranged at the right side edge of the chassis 5, and the first right connecting sleeve is hinged with the second right connecting sleeve through a right pin shaft after being axially communicated with the second right connecting sleeve;

The front side surface of the top of the rear right upright post 412 is provided with a first right rear lock hole, and the rear side surface of the top of the front right upright post 112 is provided with a first right front lock hole; the top end of the right rear frame is provided with a second right rear lock hole which is horizontally communicated with the first right rear lock hole, and the top end of the right front frame is provided with a second right front lock hole which is horizontally communicated with the first right front lock hole;

the front side of the right end of the rear right upright post 412 is also fixed with a vertical rear right limiting plate 462, the rear side of the right end of the front right upright post 112 is also fixed with a vertical front right limiting plate 162, and the right side of the second right connecting sleeve is also provided with a right door limiting plate 57 vertically connected to the right edge of the chassis 5; the right door leaf is limited to the left of the rear right stop plate 462, the front right stop plate 162 and the right door opening plate 57;

A rear right limiting opening is formed in the rear right limiting plate 462, a rear right protruding block is protruding from the right side surface of the right rear frame, and the rear right protruding block is embedded into the rear right limiting opening from left to right; the front right limiting plate 162 is provided with a front right limiting opening 172, the right side surface of the right front frame is provided with a front right protruding block in a protruding mode, and the front right protruding block is embedded into the front right limiting opening 172 from left to right;

the bottom of the rear surface of the left door leaf 231 is provided with a convex rear left limit convex block 29; the bottom of the front surface of the left door leaf 231 is provided with a convex front left limiting convex block.

The bottom of the rear surface of the right door leaf is provided with a convex rear right limiting convex block; the bottom of the front surface of the right door leaf is provided with a convex front right limiting convex block;

by utilizing the protruding blocks, the left door and the right door can be separated from the front door and the rear door by a section of distance, and the inner walls of the front door and the rear door are prevented from being scratched by locks of the left door and the right door when the left door and the right door are buckled.

The top edges of the front door leaf 133, the rear door leaf, the left door leaf 231 and the right door leaf are all positioned on the same horizontal plane; the tops of the rear left upright 411, the rear right upright 412, the front left upright 111 and the front right upright 112 are all higher than the horizontal plane and are all provided with first stacking grooves 61 on the upper surfaces of the tops; a stacking positioning block 6 is also fixed below each fixing groove on the chassis 5; a second stacking groove 62 is formed in the bottom surface of each stacking positioning block 6, and a stacking protruding block 63 aligned with the first stacking groove 61 in the vertical direction is arranged at each second stacking groove 62; the top of each of the fixing grooves is further provided with a fixing groove stacking projection 64 aligned in the vertical direction with the second stacking recess 62.

The two fixing grooves (a rear left fixing groove 53 and a rear right fixing groove 54) at the rear are mirror symmetry, the two fixing grooves (a front left fixing groove 51 and a front right fixing groove 52) at the front are mirror symmetry, and the mirror symmetry planes are vertical planes which face to the left and right directions and pass through the center of the chassis 5;

the two fixing grooves (a rear left fixing groove 53 and a front left fixing groove 51) positioned at the left side are mirror symmetry, the two fixing grooves (a rear right fixing groove 54 and a front right fixing groove 52) positioned at the right side are mirror symmetry, and mirror symmetry planes are vertical planes which face the front and rear directions and pass through the center of the chassis 5;

The chimeras (front left chimera 151, front right chimera 152, rear left chimera 451, rear right chimera 452) corresponding to each fixation slot all satisfy the exactly same mirror image relationship described above. In addition, the left door 2 and the right door 3 are also arranged in mirror symmetry, and the symmetry plane is a vertical plane which faces the front-back direction and passes through the center of the chassis 5;

the connection and function of the left fixing groove 51 and the left front chimeric body 151 are illustrated, and the connection of the other three groups of fixing grooves and the chimeric bodies is completely determined by mirror images:

As shown in fig. 27, when the front left chime 151 is installed, it is required to rotate the front left chime 151 by an angle (the angle may be 45 °), that is, the angle between the front left chime 151 and the horizontal plane is 45 °), so that an inclined plane of the front left bottom boss 1512 is cut off in the vertical direction, and thus the horizontal width of the inclined plane is the same as the top width of the front left runner 515, and the front left bottom boss 1512 can be embedded into the front left runner 515. After the front left bottom boss 1512 is embedded, the front left embedded body 151 can be rotated by entering the middle part of the front left sliding groove 515, at this time, the front left embedded body 151 can be rotated to be vertical and continuously moved downwards, the front left bottom boss 1512 can be embedded at the bottom of the front left sliding groove 515, the front left top boss 1511 is embedded at the top of the front left sliding groove 515, at this time, the front left embedded body 151 is completely fixed on the front left sliding groove 515, as shown in fig. 28 to 29.

When the front left upright 111 to which the front left chime 151 and its upper portion are connected needs to be turned to a lying state (at this time, the front door 1 may be laid down), the front left chime 151 may be lifted up so that the front left top boss 1511 is disengaged from the front left runner 515, and then the front left chime 151 may be turned until it is horizontal, as shown in fig. 30.

In general, for example, in the vertical case, as shown in fig. 31, the front left fitting body 151 is not easily separated from the front left fixing groove 51, and can be separated only when the angle is manually adjusted to the vertical direction of the inclined surface of the front left bottom boss 1512, which is determined by the relationship of d1 < d4.ltoreq.d5.ltoreq.d3 < d2 described above, so that the front left fitting body 151 can be prevented from being accidentally separated from the front left fixing groove 51. With such a connection, inward folding of the front door 1 can be achieved. When the front door 1 needs to be replaced and has abrasion, faults and the like, the front left jogging body 151 can be separated from the front left fixing groove 51, so that the independent maintenance or the replacement of parts is convenient.

The above is the installation and folding process of the front door 1, and the installation and folding process of the rear door 4 is completely determined by symmetry.

For the whole folding box (logistics box), when the folding box is required, the lockset on the left door 2 is pulled inwards, so that the left door 2 can be released from the rear left upright 411 and the front left upright 111, and the bottom of the left door is hinged with the chassis 5, so that the left door can be placed in the folding box through rotation; in exactly the same way, the right door 3 can be placed inside the folding box; then the joggles of the front door 1 and the rear door 4 can be folded in the folding box after being lifted; thus realizing the folding of the whole folding box.

Stacking can be achieved by a plurality of folded boxes, specifically, as shown in fig. 32, a stacking projection 63 at the bottom of the upper folded box is inserted into a fixing groove at the lower side, and the stacking can be made compact due to the cooperation of the second stacking recess 62 and the fixing groove stacking projection 64. The four corners are respectively stacked in the mode. In addition, the stacking can be repeated to form a multi-layer stack, so that the storage space of the folding box can be greatly saved;

When the folding box is required to store articles, the front door 1 and the rear door 4 are lifted firstly and then are arranged in the fixed groove, then the left door 2 is lifted, the left door 2 is limited by the left door limiting plate 56, the rear left limiting plate 461 and the front left limiting plate 161 and is not turned outwards, the rear left protruding block 261 and the front left protruding block 262 are respectively embedded into the rear left limiting opening and the front left limiting opening 171, and meanwhile, due to the arrangement of the sliding inclined surfaces at the end parts of the upper lock rod 251 of the left rear lock and the upper lock rod 252 of the left front lock, the lock can be backwards moved back through the contact of the sliding inclined surfaces with the rear left upright 411 and the front left upright 111 in the moving process, so that the lock is embedded into the opening arranged on the upright. The configuration of the sliding ramp is shown in fig. 26. The lifting and fixing process of the right door 3 is identical to that of the left door 2.

When storing articles, the front door leaf 133 can be detached separately to facilitate the placement or removal of the articles, specifically as follows: the front door leaf 133 can be separated from the front left upright 111 and the front right upright 112 by pulling the lock of the front door 1 inwards, and at the moment, the front door leaf 133 is lifted up, so that the front door leaf fixing strip 18 is separated from the front upper embedding strip 19, and the front door leaf 133 is detached; in the above process, due to the arrangement of the left and right limiting pieces 131 and 132, the front door leaf 133 does not fall inward into the folding box, thereby preventing the front left lock upper locking rod 1413 and the front right lock upper locking rod 1423, which are protruded, from being pushed by the spring, from scratching the inner surfaces of the left and right doors 2 and 3. When the front door 133 is mounted, the process is reversed. In the state that the folding boxes store articles, a stacking effect can also be achieved, specifically, one folding box is placed above the other folding box, the stacking projection 63 of the upper folding box is embedded in the first stacking groove 61 of the lower folding box, and stacking can be achieved by performing such embedding on four corners, as shown in fig. 33.

Fig. 34 is a schematic connection diagram of the first left connecting sleeve 28 and the second left connecting sleeve 55, during installation, the left pin shaft is forcibly smashed into the two sleeves from left to right in the drawing, the outer diameter of the left pin shaft is slightly smaller than the inner diameters of the first left connecting sleeve 28 and the second left connecting sleeve 55, but a left pin shaft boss is arranged on one side, such as the left side in the drawing, so that the right side of the left pin shaft can smoothly enter the second left connecting sleeve 55 through the first left connecting sleeve 28, and the two left pin shaft bosses can be embedded into the first left connecting sleeve 28 and fixed by forcibly smashing the left pin shaft, so that the hinging is realized. The connection of the first left connecting sleeve and the second left connecting sleeve is identical to that described above.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should be covered by the protection scope of the present invention by making equivalents and modifications to the technical solution and the inventive concept thereof.

Claims

1. The dual-purpose stacked folding box based on the combination of the detachable falling upright post and the hinge is characterized by comprising a chassis (5), and a front door (1), a rear door (4), a left door (2) and a right door (3) which are vertically connected to four sides of the chassis (5);

Four corners of the chassis (5) are respectively provided with a fixing groove, namely a rear left fixing groove (53), a rear right fixing groove (54), a front left fixing groove (51) and a front right fixing groove (52);

The rear door (4) comprises a rear left upright (411), a rear right upright (412) and a rear door leaf fixed between the rear left upright (411) and the rear right upright (412);

The bottom of the rear left upright post (411) is connected with a rear left jogged body (451), and the rear left jogged body (451) is embedded in the rear left fixing groove (53);

the bottom of the rear right upright post (412) is connected with a rear right jogged body (452), and the rear right jogged body (452) is embedded in the rear right fixing groove (54);

The rear left fixing groove (53) comprises a rear left bottom plate (531), a rear left side plate (532) vertically connected to the left side of the rear left bottom plate (531), a rear left side plate (534) vertically connected to the right side of the rear left bottom plate (531), and a rear left rear side plate (533) vertically connected to the rear side of the rear left bottom plate (531); a vertical rear left chute (535) is formed in the right side surface of the rear left side plate (532), the top width of the rear left chute (535) is d1, the middle width of the rear left chute (535) is d2, and the bottom width of the rear left chute (535) is d3;

A rear left top boss is convexly arranged at the top of the left side surface of the rear left jogged body (451), and the top end of the rear left top boss is connected to the bottom surface of the rear left upright post (411); a rear left bottom boss is convexly arranged at the bottom of the left side surface of the rear left jogged body (451); the width of the rear left top boss in the front-rear direction is d1; the rear left bottom boss is a short cylinder with a small angle cut by the rear left cutting inclined plane and the diameter of d 5; the maximum width of the rear left bottom boss in the direction perpendicular to the rear left cutting inclined plane is d1, and the maximum width of the rear left bottom boss in the front-rear direction is d4;

when the rear left jogging body (451) is embedded in the rear left fixing groove (53), the rear left bottom boss is positioned at the bottom of the rear left sliding groove (535), and the rear left top boss is embedded at the top of the rear left sliding groove (535);

The rear right fixing groove (54) comprises a rear right bottom plate, a rear right side plate vertically connected to the right side of the rear right bottom plate, a rear right left side plate vertically connected to the left side of the rear right bottom plate, and a rear right rear side plate vertically connected to the rear side of the rear right bottom plate; a vertical rear right chute is formed in the left side surface of the rear right side plate, the top width of the rear right chute is d1, the middle width of the rear right chute is d2, and the bottom width of the rear right chute is d3;

a rear right top boss is convexly arranged at the top of the right side surface of the rear right jogged body (452), and the top end of the rear right top boss is connected to the bottom surface of the rear right upright post (412); a rear right bottom boss is convexly arranged at the bottom of the right side surface of the rear right jogged body (452); the width of the rear right top boss in the front-rear direction is d1; the rear right bottom boss is a short cylinder with a small angle cut by the rear right cutting inclined plane and the diameter of d 5; the maximum width of the rear right bottom boss in the direction perpendicular to the rear right cutting inclined plane is d1, and the maximum width of the rear right bottom boss in the front-rear direction is d4;

When the rear right jogging body (452) is embedded in the rear right fixing groove (54), the rear right bottom boss is positioned at the bottom of the rear right sliding groove, and the rear right top boss is embedded at the top of the rear right sliding groove;

a horizontal rear lower jogging strip (59) is connected between the rear left fixing groove (53) and the rear right fixing groove (54), and a rear upper jogging strip (49) is fixed at the bottom of the rear door leaf; the rear side of the top surface of the rear lower jogged strip (59) is vertically upwards provided with a rear lower jogged bulge, and the rear side of the bottom surface of the rear upper jogged strip (49) is provided with a rear upper jogged dent;

When the rear left jogger (451) is embedded in the rear left fixing groove (53) and the rear right jogger (452) is embedded in the rear right fixing groove (54), the rear lower jogging bulge is jogged in the rear upper jogging recess;

The front door (1) comprises a front left upright (111), a front right upright (112) and a front door leaf (133) positioned between the front left upright (111) and the front right upright (112);

the bottom of the front left upright post (111) is connected with a front left jogged body (151), and the front left jogged body (151) is embedded in the front left fixing groove (51);

The bottom of the front right upright post (112) is connected with a front right jogged body (152), and the front right jogged body (152) is embedded in the front right fixed groove (52);

The front left fixing groove (51) comprises a front left bottom plate (511), a front left side plate (514) vertically connected to the left side of the front left bottom plate (511), a front left side plate (512) vertically connected to the right side of the front left bottom plate (511), and a front left front side plate (513) vertically connected to the front side of the front left bottom plate (511); a vertical front left chute (515) is formed in the right side surface of the front left side plate (514), the top width of the front left chute (515) is d1, the middle width of the front left chute (515) is d2, and the bottom width of the front left chute (515) is d3;

a front left top boss (1511) is convexly arranged at the top of the left side surface of the front left jogged body (151), and the top end of the front left top boss (1511) is connected with the bottom surface of the front left upright post (111); a front left bottom boss (1512) is convexly arranged at the bottom of the left side surface of the front left jogged body (151); the width of the front left top boss (1511) in the front-rear direction is d1; the front left bottom boss (1512) is a short cylinder with a small angle cut by the front left cutting inclined plane and a diameter d 5; the maximum width of the front left bottom boss (1512) in the direction perpendicular to the front left cutting inclined plane is d1, and the maximum width of the front left bottom boss (1512) in the front-rear direction is d4;

when the front left jogging body (151) is embedded in the front left fixing groove (51), the front left bottom boss (1512) is positioned at the bottom of the front left sliding groove (515), and the front left top boss (1511) is embedded at the top of the front left sliding groove (515);

The front right fixing groove (52) comprises a front right bottom plate, a front right side plate vertically connected to the right side of the front right bottom plate, a front right left side plate vertically connected to the left side of the front right bottom plate, and a front right front side plate vertically connected to the front side of the front right bottom plate; the left side surface of the front right side plate is provided with a vertical front right chute, the top width of the front right chute is d1, the middle width of the front right chute is d2, and the bottom width of the front right chute is d3;

A front right top boss (1521) is convexly arranged at the top of the right side surface of the front right jogged body (152), and the top end of the front right top boss (1521) is connected with the bottom surface of the front right upright post (112); a front right bottom boss (1522) is convexly arranged at the bottom of the right side surface of the front right jogged body (152); the width of the front right top boss (1521) in the front-rear direction is d1; the front right bottom boss (1522) is a short cylinder with a small angle cut by a front right cutting inclined plane and a diameter d 5; the maximum width of the front right bottom boss (1522) in the direction perpendicular to the front right cutting bevel is d1, and the maximum width of the front right bottom boss (1522) in the front-rear direction is d4;

When the front right jogging body (152) is embedded in the front right fixing groove (52), the front right bottom boss (1522) is positioned at the bottom of the front right sliding groove, and the front right top boss (1521) is embedded at the top of the front right sliding groove;

A horizontal front lower jogging strip (58) is connected between the front left fixing groove (51) and the front right fixing groove (52), and a front upper jogging strip (19) is connected between the bottom end of the front left upright post (111) and the bottom end of the front right upright post (112); the front side of the top surface of the front lower jogging strip (58) is vertically upwards provided with a front lower jogging bulge, and the front side of the bottom surface of the front upper jogging strip (19) is provided with a front upper jogging dent;

When the front left jogger (151) is embedded in the front left fixed groove (51) and the front right jogger (152) is embedded in the front right fixed groove (52), the front lower jogging bulge is jogged in the front upper jogging concave;

The left door (2) comprises a left door leaf (231), a first left connecting sleeve (28) is arranged at the bottom end of the left door leaf (231), a second left connecting sleeve (55) is arranged at the left side edge of the chassis (5), and the first left connecting sleeve (28) is hinged with the second left connecting sleeve (55) through a left pin shaft after being axially communicated;

the left door leaf (231) is connected with the front left upright post (111) and the rear left upright post (411) through locks;

The right door (3) comprises a right door leaf, a first right connecting sleeve is arranged at the bottom end of the right door leaf, a second right connecting sleeve is arranged at the right side edge of the chassis (5), and the first right connecting sleeve is hinged with the second right connecting sleeve through a right pin shaft after being axially communicated with the second right connecting sleeve;

The right door leaf is connected with the front right upright post (112) and the rear right upright post (412) through locks;

The top edges of the front door leaf (133), the rear door leaf, the left door leaf (231) and the right door leaf are all positioned on the same horizontal plane; the tops of the rear left upright (411), the rear right upright (412), the front left upright (111) and the front right upright (112) are higher than the horizontal plane, and a first stacking groove (61) is formed in the upper surface of the top; a stacking positioning block (6) is also fixed below each fixing groove of the chassis (5); a second stacking groove (62) is formed in the bottom surface of each stacking positioning block (6), and a stacking protruding block (63) aligned with the first stacking groove (61) in the vertical direction is arranged at each second stacking groove (62); the top of each of the fixing grooves is further provided with a fixing groove stacking protrusion (64) aligned with the second stacking groove (62) in the vertical direction.