CN105818754A - Linkage mechanism - Google Patents

Abstract

The invention relates to a linkage mechanism, which comprises: an outer bracket, an inner bracket fixedly connected to the front end of the storage box, and two sets of linkages respectively installed between the outer bracket and the inner bracket through a pin shaft. assembly, wherein the two sets of linkage assemblies have the same structure, and are arranged side by side and symmetrically along the left and right directions, and each set of linkage assemblies includes: a linkage plate, an input gear and a clutch plate arranged coaxially in sequence along the front and rear directions . The present invention adopts two linkage discs that are linked with the storage box cover and each other, and two clutch discs with pointer transmission pins that can extend into the L-shaped groove on the linkage disc, thereby controlling the pointer transmission. The pin extends into or moves out of the L-shaped groove to realize the synchronous opening and asynchronous closing of the two covers, thereby greatly improving the user's freedom of use while ensuring the sensory quality of the storage box.

Description

a linkage mechanism

technical field

The invention relates to a linkage mechanism, in particular to a linkage mechanism used for a double-door storage box of an automobile.

Background technique

As we all know, for the common opposite-open double-door storage box in automobiles, when a button is pressed, the two doors of the storage box will be opened simultaneously. This movement can be realized in the following two ways in the prior art: the first is to independently install drive springs and dampers on the two doors of the storage box, so that the two doors can be opened by their respective springs (hereinafter The second is to rely on gear linkage between the two doors of the storage box, and when the door on one side of the elastic drive is opened, the other side door is also opened (hereinafter referred to as the linkage double door).

However, by using the non-linkage double-door method (for example, the non-linkage double-door storage box disclosed in CN204172791U), any side door of the storage box can be closed independently, so that the user has a higher degree of freedom, but due to the spring, damping And there are manufacturing tolerances in each part, it is difficult to guarantee the synchronization when the two doors are opened, so the sensory quality is difficult to guarantee. And, utilize the mode of linkage double-door (such as the linkage double-door storage box disclosed in CN2014205000384), when the storage box is opened, the motion synchronization of the two doors can be fully guaranteed by the gears, and the sensory quality is easy to guarantee, but When one side door is closed, the other side door will also be closed synchronously, so it is impossible to achieve a state where one door is closed and the other door is open, thereby reducing the user's freedom of use.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention aims to provide a linkage mechanism, so that the two covers of the storage box with double doors of the car can be opened in linkage when it is opened, and any one of the covers can be closed independently when it is closed. Therefore, the problem that the sensory quality and the degree of freedom of use of the double-door storage box cannot be guaranteed at the same time is solved in the prior art.

A linkage mechanism according to the present invention is used for a storage box with two lids opened along the left and right directions, and the linkage mechanism includes: an outer bracket, an inner side fixedly connected to the front surface of the storage box bracket, and two sets of linkage components installed between the outer bracket and the inner bracket through a pin shaft, wherein the two sets of linkage components have the same structure, and are arranged side by side and symmetrically along the left and right directions, and each set of The linkage assembly includes: a linkage disc, an input gear and a clutch disc arranged coaxially in sequence along the front and rear directions, wherein the two linkage discs are linked to each other, and the two input gears are spaced apart from each other and respectively connected to the two The cover body gears carried by the first cover body are engaged, and the two clutch discs are spaced apart from each other;

Wherein, the outer end surface of the inner bracket facing the outer bracket is protruded with:

two hollow support columns, and the support columns correspond to the position of the pin shaft so that one end of the pin shaft is accommodated in the support column; and

Two sets of spiral guide piece sets with symmetrical structures, each set of guide piece sets include a plurality of arc-shaped blades extending outward from the outer peripheral wall of the support column and evenly spaced in the circumferential direction, two adjacent The two adjacent surfaces of the arc-shaped blades and the outer peripheral wall of the support column sandwiched between the two adjacent arc-shaped blades jointly form a crescent-shaped cavity with an unclosed end;

Wherein, each of the linkage discs is sleeved on the outer edge of the pin shaft through the first rotating shaft hole opened in the center; each linkage disc is provided with a plurality of rings surrounding the outer bracket on the inner end surface away from the outer bracket. L-shaped grooves evenly distributed in the first rotating shaft hole, the number of the L-shaped grooves is consistent with the number of the arc-shaped blades in a set of guide vanes, and each of the L-shaped grooves includes :

The first groove portion radially extends from the first radially outer end away from the first shaft hole to the first radially inner end close to the first shaft hole, and the groove bottom surface of the first groove portion parallel to the inner end surface of the linkage disc; and

a second groove portion extending tangentially from the first radially inner end to a tangential terminal end, and a groove bottom surface of the second groove portion is from the first radially inner end toward the tangentially terminal end extending obliquely to be flush with the inner end surface of the linkage plate;

Wherein, each of the input gears is sleeved on the outer edge of the pin shaft through the second rotating shaft hole opened in its center; each of the input gears is provided with a plurality of rings surrounding the inner end surface of the linkage disc. The second rotating shaft holes are uniformly spaced apart from rectangular through holes radially distributed, and the number of the rectangular through holes is consistent with the number of the L-shaped grooves on each of the linkage plates;

Wherein, each said clutch disc comprises:

A clutch disc carrier, which includes: a cylindrical body part and a plurality of blade parts extending radially outward from the outer edge of the body part and evenly spaced from each other, wherein the body part passes through a third shaft opened at its center The through hole is sleeved on the outer edge of the pin shaft, and the number of the blade parts is consistent with the number of the rectangular through hole; and

A plurality of oscillating pointers whose number is consistent with the number of the blades, each of the oscillating pointers includes a pointer transmission pin that is located between two adjacent blades and can rotate around one of the blades correspondingly, each One end of each of the pointer driving pins passes through a corresponding one of the rectangular through holes, and the other end correspondingly extends into a crescent-shaped cavity H, and when one end of each of the pointer driving pins extends into the corresponding When it is in the first groove part of one of the L-shaped grooves, the linkage plate in each set of the linkage assembly keeps moving synchronously with the input gear, so that the two covers are opened synchronously. When one end of each of the pointer transmission pins is located in the second groove portion of the L-shaped groove, the linkage plate in each set of linkage assemblies moves asynchronously with the input gear, so that the two The lid closes asynchronously.

In the above-mentioned linkage mechanism, each set of the linkage assembly further includes: an elastic washer sleeved on the outer edge of the pin shaft and interposed between the clutch disc and the inner support.

In the above linkage mechanism, the elastic washer is integrally formed with the clutch disc.

In the above linkage mechanism, the pin shaft is fixedly connected to the inner end surface of the outer bracket facing the inner bracket.

In the above linkage mechanism, the pin shaft is fixedly connected to the outer end surface of the inner bracket, and the pin shaft is integrally formed with the support column.

In the aforementioned linkage mechanism, the outer bracket is fixedly connected to the inner bracket by inserting a screw into the pin shaft and threading it.

In the above-mentioned linkage mechanism, the outer bracket and the inner bracket are snap-connected.

In the above-mentioned linkage mechanism, a bracket groove for accommodating two linkage plates is provided on the inner end surface of the outer bracket facing the inner bracket, and the depth of the bracket groove is the same as the thickness of the linkage plate. same.

In the above-mentioned linkage mechanism, on the outer end surface of the inner bracket, each arc-shaped vane in one of the guide vane groups on the left is bent clockwise, and the one of the guide vane groups on the right is Each arc-shaped blade in the bends in a counterclockwise direction.

In the above-mentioned linkage mechanism, each arc-shaped blade in each set of guide vanes includes: a first arc segment extending outward from the outer peripheral wall of the support column and an arc segment extending from the first arc segment. A second arc segment extending outward from the free end, wherein the radius of the circle where the first arc segment is located is smaller than the radius of the circle where the second arc segment is located, and the radius of the circle where the second arc segment is located It is consistent with the radius of the input gear, and the height of the second arc segment protruding from the outer end surface of the inner support is greater than the height of the first arc segment protruding from the outer end surface of the inner support.

In the aforementioned linkage mechanism, serrations are respectively provided on the outer edges of the two linkage plates, and the two linkage plates mesh with each other through the saw teeth.

In the above-mentioned linkage mechanism, the two linkage disks are linked with each other through a belt wound in a figure-eight shape on their outer edges.

In the above linkage mechanism, a gear groove for accommodating part of the clutch disc is formed on the inner end surface of each input gear.

In the above-mentioned linkage mechanism, the outer edge of each of the blades of each of the clutch disc holders is provided with a connection groove for the swing pointer to be rotatably connected therein, and each of the blades The end face is provided with a pointer rotation shaft hole that is connected with the connecting groove; each of the swing pointers also includes: a pointer body extending radially outward from the middle part of the outer edge of the pointer transmission pin, and the pointer body passes through the The pointer shaft passing through the pointer shaft hole is rotatably connected in the connecting groove.

In the above-mentioned linkage mechanism, each blade part of each clutch disc frame is connected with each swing pointer through a hinge part; each swing pointer also includes: A clamping block extending radially outward from the middle part of the edge, and the clamping block is rotatably connected to the outer edge of the blade part through the hinge part, and the clamping block, the hinge part and the blade part are integrally formed .

In the above linkage mechanism, the outer edge of each pointer transmission pin is kept in contact with the outer edge of the corresponding blade portion.

In the aforementioned linkage mechanism, the inner bracket is integrated on the storage box.

Due to the adoption of the above-mentioned technical solution, the present invention adopts two interlocking disks that are interlocked with the storage box cover and are also interlocked with each other, and two pointer transmission pins that can extend into the L-shaped grooves on the interlocking disks. The clutch disc, so as to realize the synchronous opening and asynchronous closing of the two covers by controlling the pointer transmission pin to extend into the L-shaped groove or move out of the L-shaped groove, thereby greatly improving the sensory quality of the storage box. The user's freedom of use.

Description of drawings

Fig. 1a is a schematic diagram of the application field of the linkage mechanism of the present invention;

Fig. 1b is a partial sectional view of Fig. 1a, which shows the closed state of the double-door storage box adopting the linkage mechanism of the present invention;

Fig. 1c is a partial sectional view of Fig. 1a, which shows the fully opened state of the double-door storage box adopting the linkage mechanism of the present invention;

Fig. 2a is a schematic structural view of the double-door storage box in Fig. 1b in a closed state;

Fig. 2b is a schematic diagram of the structure of the double-door storage box in Fig. 1c when it is fully opened;

Fig. 3 is a schematic diagram of the assembly structure of the linkage mechanism of the present invention;

Fig. 4 is the structural exploded view of linkage mechanism of the present invention;

Fig. 5 is A-A to sectional view among Fig. 3;

Fig. 6 is the B-B direction sectional view among Fig. 3;

Fig. 7 is a structural perspective view of the inner bracket in the present invention;

Fig. 8 is a schematic diagram of the cooperative structure of the linkage plate and the swing pointer in the present invention;

Fig. 9 is a schematic structural view of an input gear in the present invention;

Fig. 10 is a schematic structural view of an embodiment of a clutch disc in the present invention;

Fig. 11 is a schematic structural view of another embodiment of the clutch disc in the present invention;

Fig. 12 is a C-C sectional view in Fig. 5, which shows the movement track of the pointer transmission pin on the inner support;

Fig. 13 is a D-D cross-sectional view in Fig. 5, which shows the movement track of the pointer transmission pin on the linkage plate;

Figure 14a-c shows a schematic diagram of the process from closing to fully opening of the double-door storage box of the present invention;

15a-c show a schematic diagram of the process of using the double-door storage box of the present invention from fully opening to closing of the single side cover.

detailed description

Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

As an example and not limitation, the present invention, that is, a linkage mechanism, can be applied to a car 100 as shown in Figure 1a, especially to a double-door storage box for the interior of the car 100 as shown in Figures 1b and 1c 20 (hereinafter referred to as the storage box), wherein the double-door storage box 20 in Figure 1b is closed, and the double-door storage box 20 in Figure 1c is fully opened.

As shown in Figures 2a and 2b, in this embodiment, the linkage mechanism 10 of the present invention is assembled on the front end of the storage box 20 along the direction of travel of the automobile 100, and any common storage items can be assembled on the rear end. Box locking mechanism 30 (it should be understood that the installation positions of linkage mechanism 10 and storage box locking mechanism 30 can also be reversed, that is, storage box locking mechanism 30 can be installed on the front end face of storage box 20, And the linkage mechanism 10 is installed on the rear end face of the storage box 20). The left and right half covers 201 of the storage box 20 (since the structures of the two covers are exactly the same, so they are represented by the same reference numerals) are respectively provided with a linkage mechanism extending downwards near the left and right sides of the front end. 10 Cooperating cover gear 202. After the lock mechanism 30 of the storage box is unlocked, the two lids 201 of the storage box 20 can be simultaneously opened through the linkage mechanism 10 (the working principle will be described in detail below).

As shown in Figures 3 and 4, the linkage mechanism 10 of the present invention includes: an outer support 1 (in this embodiment, the outer support 1 is away from the front end of the storage box), an inner support 2 (in this embodiment, the inner support 2 installed on the front end of the storage box) and two sets of linkage components installed between the outer bracket 1 and the inner bracket 2, wherein the two sets of linkage components have the same structure and are arranged side by side and symmetrically along the left and right directions. The set of linkage components includes: a linkage disc 3, an input gear 4, a clutch disc 5 and an elastic washer 6 arranged coaxially in sequence along the front and rear directions, wherein the linkage discs 3 in the two sets of linkage components are linked to each other, and the two input gears 4 are spaced apart from each other and keep meshing with the cover gears 202 of the two covers 201 of the storage box 20 respectively, and the two clutch discs 5 and the two elastic washers 6 are also spaced apart from each other.

Specifically, as shown in Figures 5 and 6, the inner end surface (in this embodiment, the rear end surface of the outer support 1) facing the inner support 2 of the outer support 1 is provided with a support for accommodating two linkage plates 3. Groove 11, the depth of the bracket groove 11 is roughly the same as the thickness of the linkage plate 3, and the groove bottom surface of the bracket groove 11 is protruded with two pins 12 arranged side by side along the left and right directions; the orientation of the inner bracket 2 Two hollow support columns 21 corresponding to the positions of the pin shafts 12 protrude from the outer end surface of the outer support 1 (ie, in this embodiment, the front end of the inner support 2 ). In this embodiment, the outer bracket 1 and the inner bracket 2 can be fixed by inserting the pin shaft 12 into the hollow support column 21, and inserting the pin shaft 12 from the inner side of the inner bracket 2 with the screw 7 and screwing it. connect. It should be understood that the pin shaft 12 can also be provided on the outer end surface of the inner bracket 2 and integrally formed with the support column 21 , so that the screw 7 can be inserted into the pin shaft 12 from the outer side of the outer bracket 1 and screwed with it. In addition, it should also be understood that the outer frame 1 and the inner frame 2 may also be fixedly connected by other clipping methods.

As shown in Figure 7, the outer end surface of the inner support 2 is also protrudingly provided with two groups of structurally symmetrical helical guide piece groups 22, and each group of guide piece group 22 includes a plurality of evenly spaced arc blades 221 in the circumferential direction (such as 2-6 pieces, in the present embodiment, the number of arc blades 221 is 4), each arc blade 221 comprises: the first circular arc section 222 extending outward from the outer peripheral wall of the support column 21 and the first circular arc section 222 from the second The free end of an arc segment 222 extends outwards to the second arc segment 223 (in this embodiment, each arc vane 221 in the guide vane group 22 on the left side on the outer end surface of the inner support 2 along the clockwise, and each arc blade 221 in the guide vane set 22 on the right is bent counterclockwise), wherein the radius of the circle where the first arc segment 222 is located is smaller than that of the circle where the second arc segment 223 is located Radius, and the radius of the circle where the second arc segment 223 is located is consistent with the radius of the input gear 4, and the height of the second arc segment 223 protruding from the outer end surface of the inner support 2 is greater than that of the first arc segment 222 protruding from the outer end surface of the inner support 2 the height of. In each set of guide piece groups 22, the adjacent two surfaces of two adjacent arc-shaped blades 221 and the outer peripheral wall of the support column 21 sandwiched between the adjacent two arc-shaped blades 221 jointly form a crescent shape. Cavities H (one end of the crescent-shaped cavity H is not closed), in this embodiment, the number of crescent-shaped cavities H in each guide piece group 22 is four.

As shown in Figure 8, in this embodiment, the outer edge of the linkage disc 3 is provided with serrations, and the two linkage discs 3 are engaged with each other through the serrations (as shown in Figure 4), thereby realizing linkage; it should be understood that, The linkage between the two can be realized by winding a figure-eight belt on the outer edges of the two linkage discs 3 . The center of the linkage plate 3 is provided with a first rotating shaft hole 31 extending in the front-rear direction, so that the linkage plate 3 can be sleeved on the outer edge of the pin shaft 12 of the outer bracket 1 . On the inner end surface 32 of the linkage plate 3 far away from the outer support 1 (in this embodiment, that is, the rear end surface of the linkage plate 3), there are a plurality of L-shaped grooves 33 evenly spaced around the first shaft hole 31, L-shaped The number of grooves 33 is consistent with the number of arc blades 221 (in this embodiment, the number of L-shaped grooves 33 is 4), and each L-shaped groove 33 includes: a first groove portion 331 and a second groove portion 331 Two grooves 332, wherein the first groove 331 extends from a first radially outer end 333 (hereinafter referred to as the first starting point 333) away from the first shaft hole 31 along the radial direction of the first shaft hole 31 to Close to the first radially inner end 334 (hereinafter also referred to as inflection point 334) of the first rotating shaft hole 31, and the groove bottom surface of the first groove portion 331 is parallel to the inner end surface 32 of the linkage plate 3; the second groove portion 332 is from The inflection point 334 extends along the tangential direction of the first shaft hole 31 to a tangential end point 335 (hereinafter also referred to as the first end point 335 ), and the groove bottom surface of the second groove portion 332 extends obliquely from the inflection point 334 toward the first end point 335 to It is flush with the inner end surface 32 of the linkage plate 3 .

5, 6 and 9, the inner end surface of the input gear 4 away from the linkage disc 3 (in this embodiment, the rear end surface of the input gear 4) is provided with a gear groove 41 for accommodating part of the clutch disc 5 . The center of the input gear 4 is provided with a second rotating shaft hole 42 extending in the front-rear direction, so that the input gear 4 can be sleeved on the outer edge of the pin shaft 12 of the outer bracket 1 . The inner end surface of the input gear 4 (more precisely, the groove bottom surface of the gear groove 41) is also provided with a plurality of rectangular through holes 43 that are evenly spaced and radially distributed around the second rotating shaft hole 42. The number is consistent with the number of L-shaped grooves 33 on the linkage plate 3 (in this embodiment, the number of rectangular through holes 43 is 4), and when the input gear 4 and the linkage plate 3 rotate synchronously, the rectangular through holes 43 The position corresponds to the position of the first groove part 331 in the L-shaped groove 33; specifically, the rectangular through hole 43 starts from the second radially outer end 431 (hereinafter also referred to as the second starting point) away from the second rotating shaft hole 42 431) along the radial direction of the second rotating shaft hole 42 to the second radial inner end 432 (hereinafter also referred to as the second end point 432) close to the second rotating shaft hole 42, and when the input gear 4 and the linkage plate 3 rotate synchronously , the second starting point 431 coincides with the first starting point 333 , and the second end point 432 coincides with the inflection point 334 .

As shown in Figures 4, 8, and 10, the clutch disc 5 includes a clutch disc frame 51 and a plurality of swing pointers 52, wherein the number of swing pointers 52 is consistent with the number of rectangular through holes 43 (in this embodiment, the swing pointer 52 The quantity is 4). The clutch disc frame 51 includes: a cylindrical body part 511 and a plurality of blade parts 512 extending radially outward from the outer edge of the body part 511 and evenly spaced from each other, that is, the clutch disc frame 51 is designed in the shape of a fan blade, wherein , the center of the body part 511 is provided with a third rotating shaft through hole 513 extending in the front-rear direction, so that the clutch disc 5 can be sleeved on the outer edge of the pin shaft 12 of the outer bracket 1; the number of blade parts 512 and the number of swing pointers 52 Consistent (in this embodiment, the number of blade parts 512 is 4); each swing pointer 52 can rotate around each blade part 512 correspondingly; specifically, in this embodiment, the number of each blade part 512 A connection groove 514 is opened on the outer edge for the swinging pointer 52 to be rotatably connected thereto, and a pointer shaft hole 515 passing through the connection groove 514 is provided on its end face; in this embodiment, each swinging pointer 52 includes: The pointer transmission pin 521 extending in the front and back direction and the pointer body 522 extending radially outward from the middle part of the outer edge of the pointer transmission pin 521, wherein the pointer transmission pin 521 is located between two adjacent blade parts 512, and one end Pass through the rectangular through hole 43 of the input gear 4, and when the input gear 4 rotates synchronously with the linkage plate 3, this end extends into the first groove portion 331 of the L-shaped groove 33 of the linkage plate 3, when the input gear 4 When rotating asynchronously with the linkage plate 3, the one end is located in the second groove portion 332 or has moved out of the L-shaped groove 33; the other end of the pointer transmission pin 521 always extends into the crescent-shaped cavity H of the inner bracket 2; the pointer The body 522 is rotatably connected in the connection groove 514 through the pointer shaft 523 passing through the pointer shaft hole 515. In addition, during the movement of this embodiment, the outer edge of the pointer transmission pin 521 is always kept with the outer edge of the blade part 512. touch.

It should be understood that the clutch disc 5 can also adopt the structure shown in FIG. 51 includes a body part 511 and a plurality of blade parts 512, and each swing pointer 52 can rotate around each blade part 512 correspondingly; different from the above-mentioned embodiment, the blade part 512 does not have a connecting groove 514 and a pointer shaft hole 515, And each oscillating pointer 52 includes a pointer transmission pin 521 extending in the front-rear direction and a clamping block 524 extending radially outward from the middle part of the outer edge of the pointer transmission pin 521, wherein the pointer transmission pin 521 is located at two adjacent between the blades 512, and one end of which passes through the rectangular through hole 43 of the input gear 4, and when the input gear 4 and the interlocking disc 3 rotate synchronously, the one end extends into the first recess of the L-shaped groove 33 of the interlocking disc 3. In the groove portion 331, when the input gear 4 and the linkage plate 3 rotate asynchronously, one end is located in the second groove portion 332 or has moved out of the L-shaped groove 33; the other end of the pointer transmission pin 521 always extends into the inner support 2 In the crescent-shaped cavity H; the clamping block 524 is rotatably connected to the outer edge of the blade part 512 through the hinge part 525, and the clamping block 524, the hinge part 525 and the blade part 512 are integrally formed.

Please refer to Figure 4-6 again, the elastic washer 6 can be a metal shrapnel, or it can be designed as a plastic elastic structure integrally formed with the clutch disc 5, which is sleeved on the outer edge of the pin shaft 12 of the outer bracket 1 and abuts against the clutch disc 5. The inner end surface (in this embodiment, the rear end surface of the main body portion 511) of the body portion 511 of the disc frame 51 facing the inner support 2 and the outer end surface (in this embodiment) of the support column 21 of the inner support 2 facing the clutch disc 5 In the example, that is, between the front end faces of the support columns 21). By passing the elastic force of the elastic washer 6 to the clutch disc frame 51, and passing the clutch disc frame 51 to the pointer drive pin 521, the outer end surface of the pointer drive pin 521 towards the linkage disc 3 can be ensured (in this embodiment, That is, the front end surface of the pointer transmission pin 521) is always attached to the linkage plate 3.

Based on the above structure, the installation process of the present invention is as follows:

First of all, two sets of linkage components are respectively sleeved on the outer edges of the two pin shafts 12 of the outer bracket 1, and the linkage disc 3 in each set of linkage components is located in the bracket groove 11 of the outer bracket 1, so that the clutch disc 5 part Located in the gear groove 41 of the input gear 4, at the same time, one end of the pointer transmission pin 521 in the clutch disc 5 is inserted into the L-shaped groove 33 of the linkage disc 3 through the rectangular through hole 43 of the input gear 4, and against the Lean against the bottom surface of the L-shaped groove 33.

Then, the outer bracket 1 is connected and fixed with the inner bracket 2 by screwing the screw 7 and the pin shaft 12 or other clamping ways to form the linkage mechanism of the present invention, and the other end of the pointer transmission pin 521 in the clutch disc 5 is pressed against In the crescent-shaped cavity H of the inner support 2, the outer edge of the first arc section 222 of the arc blade 221 of the inner support 2 away from the inner support 2 is close to the inner end surface of the clutch disc 5, and the second arc section 223 The outer edge far away from the inner support 2 is close to the inner end face of the input gear 4 (this is because the radius of the circle where the second arc segment 223 is located is consistent with the radius of the input gear 4, and the second arc segment 223 protrudes from the outer end face of the inner support 2 The height is greater than the height of the first arc segment 222 protruding from the outer end surface of the inner support 2, therefore, it can be closer to the inner end surface of the input gear 4), it should be noted that the "closer" mentioned here refers to the outer edge and the inner There is a small gap between the end faces, but they do not touch each other, so that when the input gear 4 and the clutch disc 5 move axially, they will touch the first arc segment 222 on the arc blade 221 accordingly. And the second arc segment 223, thereby ensuring the stability of the input gear 4 and the clutch disc 5.

Finally, the inner support 2 of the entire linkage mechanism is assembled on the storage box 20 . It should be understood that the inner support 2 can also be directly integrated on the storage box 20 .

Below in conjunction with Fig. 12-15, introduce the working process of the present invention in detail:

When the two covers 201 of the storage box are in the closed state (as shown in Figure 14a), one end of the pointer transmission pin 521 of the clutch disc 5 in each set of linkage assembly passes through the second end of the rectangular through hole 43 of the input gear 4. The starting point 431 is also located at the first starting point 333 of the L-shaped groove 33 of the linkage plate 3, and the other end of the pointer transmission pin 521 is close to the unclosed end of the crescent-shaped cavity H of the inner support 2 (that is, E in FIG. 12 ). It should be noted that Fig. 12 only shows the pointer transmission pin 521 of the clutch disc 5 on the left side in this embodiment, while the position of the pointer transmission pin 521 on the right side is symmetrical to it). Due to the elastic action of the elastic washer 6 , the clutch disc 5 is pressed toward the linkage disc 3 , so that one end of the pointer transmission pin 521 is kept in the L-shaped groove 33 . At this time, the pointer transmission pin 521 is relatively rotationally locked with the rectangular through hole 43 of the input gear 4 and the first groove portion 331 of the L-shaped groove 33 of the interlocking disc 3 at the same time, that is, the input gear 4 and the interlocking disc 3 are synchronized.

During the process of opening any cover 201 of the storage box to a certain position (as shown in Figure 14b), as the cover gear 202 on the cover 201 rotates, a set of linkage components is driven The input gear 4 in the rotation rotates (specifically, in this embodiment, the input gear 4 on the left side rotates counterclockwise, and the input gear 4 on the right side rotates clockwise), since the input gear 4 and the linkage plate 3 are on the pointer Under the action of the transmission pin 521, the synchronization is maintained, so the linkage disc 3 in this set of linkage components also starts to rotate, and because the left and right two linkage discs 3 mesh with each other, the rotation of one linkage disc 3 will drive the other set of linkage components The interlocking disc 3 in the center rotates, and thus through the synchronous action of the interlocking disc 3 and the input gear 4 in another set of interlocking components, the other cover 201 is opened at the same time, thereby ensuring the synchronization of the two covers 201 when they are opened. Thereby ensuring sensory quality. During this process, the pointer transmission pin 521 rotates under the drive of the input gear 4, and its position on the linkage plate 3 and the input gear 4 remains unchanged, that is, one end of the pointer transmission pin 521 passes through the rectangular channel of the input gear 4 all the time. The second starting point 431 of the hole 43 abuts against the first starting point 333 of the L-shaped groove 33 of the linkage plate 3, while the other end of the pointer transmission pin 521 surrounds the outer bracket 1 in the crescent-shaped cavity H of the inner bracket 2. The pin shaft 12 moves with a constant radius until the other end of the pointer drive pin 521 touches the arc-shaped vane 221 defining the crescent-shaped cavity H, such as shown in FIG. 12 , the pointer drive pin of the clutch disc 5 on the left side 521 moves counterclockwise to F, thereby forming a trajectory T11 from E to F as shown in FIG. 12 .

When the cover 201 of the storage box continues to be opened until it is fully opened (eg 90°) (as shown in FIG. 14 c ), the input gear 4 continues to rotate driven by the cover gear 202 . However, because the pointer driving pin 521 is restricted by the shape of the arc-shaped blade 221, the other end of the pointer driving pin 521 can only continue to move along the bending direction of the arc-shaped blade 221, for example, as shown in FIG. The pointer transmission pin 521 of the clutch disc 5 moves counterclockwise to G (that is, the closed end of the crescent-shaped cavity H), thereby forming a track T12 from F to G as shown in FIG. 12 . During this process, since the radius of rotation of the pointer transmission pin 521 around the pin shaft 12 becomes smaller, when the pointer transmission pin 521 rotates with the input gear 4 and the linkage plate 3, one end of the pointer transmission pin 521 also rotates from the L-shaped groove 33. The first starting point 333 (the second starting point 431 of the rectangular through hole 43) moves radially to the inflection point 334 of the L-shaped groove 33 (the second end point of the rectangular through hole 43) along the first groove portion 331 (the rectangular through hole 43). 432), thereby forming a trajectory T21 as shown in FIG. 13 . In addition, during this moving process, since the linkage plate 3 and the input gear 4 still keep rotating synchronously under the action of the pointer transmission pin 521 , the two covers 201 continue to be opened synchronously until they reach the maximum open position.

During the reverse closing process of any cover 201 of the storage box (as shown in Figure 15a-c), the input gear 4 in a set of linkage assembly is reversed under the drive of the cover gear 202 of the cover 301 Rotate, thereby driving the pointer drive pin 521 passing through its rectangular through hole 43 to rotate in reverse. During this process, the position of the pointer drive pin 521 on the input gear 4 remains unchanged, that is, one end of the pointer drive pin 521 still passes through the second end point 432 of the rectangular through hole 43 of the input gear 4, and the pointer drive pin 521 is at The position on the linkage disk 3 has changed: due to the effect of the elastic washer 6, one end of the pointer transmission pin 521 is always attached to the linkage disk 3. Therefore, with the rotation of the input gear 4, one end of the pointer transmission pin 521 from The inflection point 334 of the L-shaped groove 33 of the interlocking disc 3 moves toward the first end point 335 until it moves onto the inner end surface 32 of the interlocking disc 3, until the cover 201 is completely closed, and one end of the pointer transmission pin 521 is on the side of the elastic washer 6. Under the action, it moves to the first starting point 333 of the adjacent L-shaped groove 33 again, thereby forming the track T22 as shown in Figure 13, and at this time, the other end of the pointer transmission pin 521 is in the crescent shape of the inner support 2 The cavity H moves around the pin shaft 12 of the outer bracket 1 with an equal radius (the size of the radius is consistent with that of the previous stage). For example, as shown in FIG. The hour hand moves through I place (I place is the joint of the outer peripheral wall of the support post 21 and the arc blade 221, after the pointer transmission pin 521 passes through the I place, due to the radius of the outer peripheral wall of the support post 21 and the location of the arc blade 221 The radius of the circle is different, therefore, the radius of rotation of the pointer drive pin 521 changes again, so that one end of the pointer drive pin 521 can move to the first starting point 333 of the adjacent L-shaped groove 33) until it moves to E, so that A trajectory T13 from G to E as shown in FIG. 12 is formed. Because during this process, one end of the pointer drive pin 521 moves out of the L-shaped groove 33, it cannot drive the linkage plate 3 to rotate, in other words, the input gear 4 cannot rotate synchronously with the linkage plate 3, so that the other set of linkage components The linkage disk 3 also remains static, that is, two sets of linkage components cannot be linked. In this way, one of the lids 201 of the storage box can be completely closed, while the other lid 201 remains still (as shown in FIG. degrees of freedom. If another cover body 201 is to be closed, its movement process is the same as above (not repeating it here).

Taking the completely closed state of the left cover 201 shown in Figure 15c as an example, if the left cover 201 is reopened at this time, since the left cover 201 is completely closed, the corresponding One end of the pointer transmission pin 521 of the clutch disc 5 is located in the first starting point 333 of the L-shaped groove 33 again, so the opening process of the left side cover 201 is as described above. At this time, although the opening of the left side cover 201 drives the left side linkage plate 3 to rotate counterclockwise, and the left side linkage plate 3 drives the right side linkage plate 3 to rotate clockwise, but Since the right side cover body 201 does not move, its corresponding input gear 4 on the right side and the pointer transmission pin 521 of the clutch disc 5 remain still, and as the linkage disc 3 rotates clockwise, the pointer transmission pin 521 One end gradually moves out of the L-shaped groove 33 from the inflection point 334 of one L-shaped groove 33 of the linkage plate 3 and falls into the inflection point 334 of the adjacent L-shaped groove 33 (can be understood in conjunction with FIG. 13 ). It can be seen that, after the left side cover 201 is reopened, it will not affect the separate closing of the right side cover 201 . It should be understood that only when the covers 201 on both sides are closed and the covers 201 are opened again, will the two covers 201 be opened synchronously again.

What is described above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes can also be made to the above embodiments of the present invention. That is to say, all simple and equivalent changes and modifications made according to the claims and description of the application for the present invention fall within the protection scope of the claims of the patent of the present invention. What is not described in detail in the present invention is conventional technical content.

Claims (17)

1. a link gear, it is for having the parcel tray of two lids opened in left-right direction, it is characterized in that, described link gear includes: outrigger, it is fixedly connected on the medial cradle on described parcel tray front end face, and two set be arranged on the linkage unit between described outrigger and medial cradle by a bearing pin respectively, wherein, the structure of the two described linkage units of set is identical, and the most side by side and be arranged symmetrically with, often overlap described linkage unit to include: the linkage dish the most sequentially coaxially arranged, one input gear and a clutch discs, wherein, two described linkage dishes are connected each other, two described input gears are spaced apart from each other, and the lid gear carried with two described lids respectively engages, two described clutch discs are spaced apart from each other；

Wherein, the outer face towards described outrigger of described medial cradle is equipped with:

The support column of two hollows, and this support column is corresponding with the position of described bearing pin so that one end of described bearing pin is contained in described support column；And

The spiral helicine prerotation vane group of two groups of symmetrical configuration, often organize described prerotation vane group and include that multi-disc stretches out from the periphery wall of described support column and circumferential evenly spaced arc shaped blade, adjacent two surface of two adjacent described arc shaped blades and be clipped in the periphery wall of the described support column between these two adjacent arc shaped blades and jointly surround one end untight crescent cavity；

Wherein, each described linkage dish is set in described bearing pin outer rim by the first shaft hole that its center is offered；Multiple L-shaped groove around described first shaft hole uniform intervals distribution is offered on the inner face away from described outrigger of each described linkage dish, the quantity of described L-shaped groove is consistent with the quantity of the described arc shaped blade in prerotation vane group described in a group, and each described L-shaped groove includes:

First concave part, it extends radially to the first radial inner end near this first shaft hole from the first radial outer end away from described first shaft hole, and the groove bottom of this first concave part is parallel to the inner face of described linkage dish；And

Second concave part, it is from described first tangentially extending to the tangential terminal of radial inner end, and the groove bottom of this second concave part tilts to extend to flush with the inner face of described linkage dish towards described tangential terminal from described first radial inner end；

Wherein, each described input gear is set in described bearing pin outer rim by the second shaft hole that its center is offered；Offering multiple around the described second radially-arranged rectangular through-hole of shaft hole uniform intervals on the inner face away from described linkage dish of each described input gear, the quantity of described rectangular through-hole is consistent with the quantity of the described L-shaped groove on each described linkage dish；

Wherein, each described clutch discs includes:

Clutch plate rail, comprising: the body of cylinder and multiple outer rim from this body extend radially outwardly and the blade part of distribution evenly spaced from one another, wherein, described body is set in described bearing pin outer rim by the 3rd rotating shaft through hole that its center is offered, and the quantity of described blade part is consistent with the quantity of described rectangular through-hole；And

nullThe sweep hand that multiple quantity are consistent with the quantity of described blade part，The pointer trundle that each described sweep hand includes between adjacent two described blade parts and can rotate around a described blade part accordingly，One end of each described pointer trundle is through a corresponding described rectangular through-hole，The other end stretches in a described crescent cavity H accordingly，And when one end of each described pointer trundle is stretched in the first concave part of a corresponding described L-shaped groove，The described linkage dish often overlapped in described linkage unit keeps being synchronized with the movement with described input gear，So that said two lid synchronizes to open，When one end of each described pointer trundle is positioned in the second concave part of described L-shaped groove，Often overlap the described linkage dish in described linkage unit and described input gear asynchronous movement，So that the asynchronous closedown of said two lid.

Link gear the most according to claim 1, it is characterised in that often overlap described linkage unit and also include: be set in described bearing pin outer rim and be folded in the elastic washer between described clutch discs and medial cradle.

Link gear the most according to claim 2, it is characterised in that described elastic washer is one-body molded with described clutch discs.

Link gear the most according to claim 1, it is characterised in that described bearing pin is fixedly connected on the inner face towards described medial cradle of described outrigger.

Link gear the most according to claim 1, it is characterised in that described bearing pin is fixedly connected on the outer face of described medial cradle, and this bearing pin is one-body molded with described support column.

6. according to the link gear described in claim 1,4 or 5, it is characterised in that described outrigger, by a screw is inserted described bearing pin the most threaded, is connected to fix with described medial cradle.

7. according to the link gear described in claim 1,4 or 5, it is characterised in that described outrigger is connected with described medial cradle clamping.

Link gear the most according to claim 1, it is characterized in that, described outrigger towards the rack groove offered on the inner face of described medial cradle for accommodating two described linkage dishes, and the degree of depth of this rack groove is identical with the thickness of described linkage dish.

Link gear the most according to claim 1, it is characterized in that, on the outer face of described medial cradle, the each arc shaped blade being positioned in a described prerotation vane group in left side bends along clockwise direction, and each arc shaped blade being positioned in a described prerotation vane group on right side bends in the counterclockwise direction.

Link gear the most according to claim 1, it is characterized in that, the each described arc shaped blade often organized in described prerotation vane group includes: outward extending first arc section of periphery wall from described support column and from outward extending second arc section of the free end of the first arc section, wherein, the radius of described first arc section place circle is less than the radius of described second arc section place circle, and described second arc section place circle radius consistent with the radius of described input gear, and described second arc section highlights the height of described medial cradle outer face and highlights the height of described medial cradle outer face more than described first arc section.

11. link gears according to claim 1, it is characterised in that the outer rim of two described linkage dishes is respectively equipped with sawtooth, and two described linkage dishes are engaged with each other by this sawtooth.

12. link gears according to claim 1, it is characterised in that two described linkage dishes are linked each other by the belt that coiling in its outer rim is 8-shaped.

13. link gears according to claim 1, it is characterised in that offer the gear recesses for accommodating the described clutch discs of part on the inner face of each described input gear.

14. link gears according to claim 1, it is characterized in that, offer in the outer rim of each described blade part of each described clutch plate rail to be rotatably connected on link slot therein, and the end face of each described blade part for described sweep hand and offer the pointer shaft hole through with described link slot；Each described sweep hand also includes: the pointer body extended radially outwardly from the outer rim mid portion of described pointer trundle, and this pointer body is by being rotatably connected in described link slot through the pointer shaft in described pointer shaft hole.

15. link gears according to claim 1, it is characterised in that each described blade part of each described clutch plate rail is connected with each described sweep hand by hinge；Each described sweep hand also includes: the clamping block extended radially outwardly from the outer rim mid portion of described pointer trundle, and this clamping block is rotatably connected to the outer rim of described blade part by described hinge, and described clamping block, hinge are one-body molded with blade part.

16. according to the link gear described in claim 1,14 or 15, it is characterised in that the outer rim of each described pointer trundle keeps contacting with the outer rim of corresponding described blade part.

17. link gears according to claim 1, it is characterised in that described medial cradle is integrated on described parcel tray.