Anti-toppling mechanism for a drawer cabinet

Abstract

The application discloses a kind of anti-tipping mechanisms of drawer cabinet, including fixed strip and linkage interlocking device in cabinet body, the stroke of linkage interlocking device in fixed strip is L, linkage interlocking device includes multiple groups of slide bar assemblies corresponding to drawer one by one, multiple groups of slide bar assemblies are in turn abut, multiple groups of slide bar assemblies interlock, slide bar assembly includes the upper sliding block and lower sliding block of sliding installation in fixed strip, rotating block is rotationally arranged on lower sliding block, the upper portion of rotating block is provided with curved surface part, the upper end of fixed strip is provided with spring, the lower portion of rotating block is provided with linkage part, drawer is provided with push pin, when one of drawer is pulled out cabinet body, push pin drives linkage part to make corresponding rotating block rotate, rotating block drives corresponding upper sliding block to move up, and the stroke of this upper sliding block is L, so that the rotating block corresponding to remaining drawer is all locked, by the above setting, only one drawer can be opened at a time, ensure the center of gravity of cabinet body, will not be because drawer is all pulled out and dump to cause damage or hurt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drawer cabinet, in particular to a kind of anti-toppling mechanism of drawer cabinet. BACKGROUND

[0002] Multiple drawers are arranged in drawer cabinet, each drawer is heavy because of the articles placed in it, if two or more drawers are pulled out, the center of gravity of the pulled-out drawers will move outside the drawer cabinet, which will cause the drawer cabinet to tip over to the side of the pulled-out drawers, resulting in accidents or even personal injury. Current multi-drawer locking mechanisms only have the functions of locking all drawers at the same time and unlocking all drawers at the same time. When taking articles from the drawers, all drawers are in an unlocked and openable state, which causes great interference between the drawers and makes it easy for multiple drawers to slide out at the same time, the center of gravity of the cabinet body to be lost, the drawer cabinet to tip over, articles to be scattered and rolled all over the floor, and a terrible situation or safety accident to occur, causing damage or even injury to personnel.

[0003] Therefore, there is an urgent need to design an anti-toppling mechanism that can only pull out one drawer at a time. SUMMARY

[0004] The purpose of the present application is to provide an anti-toppling mechanism for a drawer cabinet, which can only open one drawer at a time while locking the other drawers, has a simple structure, and ensures the center of gravity of the cabinet body, so that the drawer cabinet will not tip over and cause damage or injury when all drawers are pulled out.

[0005] The above technical purpose of the present application is achieved by the following technical solution: an anti-toppling mechanism for a drawer cabinet, which is installed in the cabinet body of the drawer cabinet, the cabinet body has at least two drawers arranged vertically, the anti-toppling mechanism includes a fixed strip arranged in the cabinet body and a linkage interlocking device that slides with the fixed strip, the stroke of the linkage interlocking device in the fixed strip is L, the linkage interlocking device includes multiple groups of slide rod assemblies corresponding to the drawers, the multiple groups of slide rod assemblies are arranged in the fixed strip from top to bottom, and the multiple groups of slide rod assemblies are interlocked, each slide rod assembly includes an upper sliding block and a lower sliding block that slide in the fixed strip, a rotating block is arranged on the lower sliding block, the upper part of the rotating block is provided with a curved surface, the upper end of the fixed strip is provided with a spring that presses the upper sliding block against the curved surface, the lower part of the rotating block is provided with a linkage part, and each drawer is provided with a push pin that cooperates with the linkage part, when one of the drawers is pulled out of the cabinet body, the push pin drives the linkage part to rotate, the rotating block drives the corresponding upper sliding block to move upward through the curved surface, and the stroke of the upper sliding block is L, so that the rotating blocks corresponding to the remaining drawers are all locked; when the drawer is pushed into the cabinet body, the push pin drives the rotating block to rotate and reset, and the upper sliding block is reset under the action of the spring force, so that all rotating blocks are unlocked.

[0006] Further, the upper sliding block is provided with a protrusion abutting against the curved surface part, and the curved surface part comprises a first recess and a second recess, and when the rotating block rotates, the protrusion moves up and down in the fixed strip along the track of the first recess and the second recess.

[0007] Further, a connecting rod is arranged between adjacent slide rod assemblies, and the connecting rod is slidingly arranged in the fixed strip and the two ends of the connecting rod abut against the lower sliding block of the previous slide rod assembly and the upper sliding block of the next slide rod assembly.

[0008] Further, the fixed strip is provided with a guide groove, and the upper sliding block, the lower sliding block and the connecting rod are slidingly arranged in the guide groove.

[0009] Further, the linkage part is provided with a lower abutting surface, and when the drawer is pushed into the cabinet, the push pin abuts against the lower abutting surface and drives the rotating block to rotate and reset.

[0010] Further, the end surface of the rotating block towards the push pin is extended with a boss.

[0011] Further, the rotating block is provided with a through hole, the lower sliding block is provided with a mounting block clamped into the through hole, the mounting block is provided with a flange preventing the rotating block from being separated, and the end surface of the mounting block is provided with a horizontal groove.

[0012] Further, the lower part of the fixed strip is provided with a supporting block for supporting the lower sliding block at the bottom end.

[0013] Further, the upper sliding block at the top of the fixed strip or / and the top end is provided with a guide hole, and the spring is arranged in the guide hole.

[0014] Further, the upper sliding block, the lower sliding block and the rotating block are made of plastic material.

[0015] In summary, the present application has the following advantages:

[0016] The anti-toppling mechanism of the drawer cabinet is disclosed, when one of the drawers is pulled out of the cabinet, the push pin drives the linkage part to rotate the corresponding rotating block, the rotating block drives the corresponding upper sliding block to move up through the curved surface part, and the upper sliding block at the top continuously compresses the spring, when the protrusion abuts into the first recess, the stroke of the upper sliding block moving up is L, the upper sliding block at the top of the fixed strip and the top end compresses the spring, so that the plurality of slide rod assemblies are limited and cannot slide up, and then the rotating blocks corresponding to the remaining drawers are locked, so that the remaining drawers cannot be pulled out, and the center of gravity of the cabinet is ensured, and the cabinet will not be damaged or hurt people due to the drawers being pulled out. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the drawer cabinet of the present application;

[0018] Figure 2 is a schematic diagram of the linkage interlocking device of the present application installed in the drawer cabinet;

[0019] Figure 3 is an enlarged view of A of the present application;

[0020] Figure 4 is a sectional view of the present application;

[0021] Figure 5 is an enlarged view of B of the present application;

[0022] Figure 6 is a structural schematic diagram of the linkage interlocking device of the present application;

[0023] Figure 7 is an exploded view of the linkage interlocking device of the present application;

[0024] Figure 8 is a schematic diagram of the rotating block when the drawer is pulled out of the present application;

[0025] Figure 9 is a schematic diagram of the rotating block when the drawer is pushed into the cabinet body of the present application.

[0026] In the figure: 1, cabinet body; 2, drawer; 21, push pin; 3, fixed strip; 31, guide groove; 32, support block; 4, upper sliding block; 41, protruding block; 42, guide hole; 43, spring; 5, lower sliding block; 51, connecting rod; 52, mounting block; 521, flange; 522, transverse groove; 53, insertion block; 6, rotating block; 61, first recess; 62, second recess; 63, linkage part; 64, lower abutting surface; 65, boss; 66, through hole; 67, fan-shaped groove; 68, weight-reducing groove. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the accompanying drawings.

[0028] As shown in Figures 1-9 , an anti-toppling mechanism of a drawer cabinet is installed in a cabinet body 1 of the drawer cabinet, at least two drawers 2 arranged in an upper-lower manner are slidably installed in the cabinet body 1, and in the present application, the drawers 2 are four, and the bottom of the cabinet body 1 is provided with rollers around the periphery, so that the drawer cabinet is facilitated to move by setting the rollers.

[0029] The anti-toppling mechanism comprises a fixed strip 3 arranged in the cabinet body 1 and a linkage interlocking device in sliding cooperation with the fixed strip 3, the stroke of the linkage interlocking device in the fixed strip 3 is L, the linkage interlocking device comprises a plurality of groups of slide rod assemblies corresponding to the drawers 2, the plurality of groups of slide rod assemblies are sequentially arranged in the fixed strip 3 from top to bottom, the plurality of groups of slide rod assemblies are in interlocking cooperation, the slide rod assembly comprises an upper sliding block 4 and a lower sliding block 5 in sliding installation on the fixed strip 3, a connecting rod 51 is arranged between adjacent slide rod assemblies, the connecting rod 51 is in sliding installation in the fixed strip 3 and the two ends of the connecting rod 51 abut against the lower sliding block 5 of the previous slide rod assembly and the upper sliding block 4 of the next slide rod assembly respectively, in the application, the connecting rod 51 can be in a split type with the upper sliding block 4 and the lower sliding block 5, or the connecting rod 51 can be in an integral molding structure with the lower sliding block 5 of the previous slide rod assembly or / and in an integral molding structure with the upper sliding block 4 of the next slide rod assembly.

[0030] The fixed strip 3 is provided with a guide groove 31, the upper sliding block 4, the lower sliding block 5 and the connecting rod 51 are in sliding installation in the guide groove 31, in the application, the guide groove 31 is a T-shaped groove, by arranging the guide groove 31, all the upper sliding blocks 4 and the lower sliding blocks 5 or part of the upper sliding blocks 4 and the lower sliding blocks 5 can be moved upward or downward together.

[0031] The lower sliding block 5 is rotationally provided with a rotating block 6, the upper portion of the rotating block 6 is provided with a curved surface portion, the upper sliding block 4 is provided with a protrusion 41 abutting against the upper portion of the rotating block 6, the upper end of the fixed strip 3 is provided with a spring 43 pressing the protrusion 41 against the curved surface portion, in the application, the curved surface portion comprises a first recess 61 and a second recess 62, a protruding portion is arranged between the first recess 61 and the second recess 62, and the first recess 61, the second recess 62 and the protruding portion are all arc surfaces, when the rotating block 6 rotates, the protrusion 41 moves up and down in the fixed strip 3 along the track of the first recess 61 and the second recess 62.

[0032] The spring 43 is arranged between the top of the fixed strip 3 and the upper sliding block 4 of the top end, so that the protrusion 41 and the curved surface portion and the adjacent slide assemblies are in close abutment, the upper sliding block 4 of the top of the fixed strip 3 or / and the top end is provided with a guide hole 42, the spring 43 is installed in the guide hole 42, by arranging the guide hole 42, the elastic force of the spring 43 acts in the length direction of the fixed strip 3, through the above arrangement, the slide assembly structure is more compact, and the interlocking effect of the linkage interlocking device is better.

[0033] The lower part of the rotating block 6 is provided with a linkage part 63, and the same side of the drawer 2 is provided with a push pin 21 matched with the linkage part 63. When one of the drawers 2 is pulled out of the cabinet body 1, the push pin 21 drives the linkage part 63 to rotate, so that the corresponding rotating block 6 rotates. The rotating block 6 drives the corresponding upper sliding block 4 to move up through the curved surface part, and the stroke of the upper sliding block 4 is L, so that the rotating blocks 6 corresponding to the remaining drawers 2 are all locked. When the drawer 2 is pushed into the cabinet body 1, the push pin 21 drives the rotating block 6 to rotate and reset, and the upper sliding block 4 resets under the elastic force of the spring 43, so that all the rotating blocks 6 are unlocked.

[0034] The rotating block 6 is provided with a through hole 66, and the through hole 66 is eccentrically arranged on the rotating block 6 in the application. The through hole 66 is a stepped hole. The lower sliding block 5 is provided with a mounting block 52 clamped in the through hole 66. The mounting block 52 is provided with a flange 521 for preventing the rotating block 6 from falling off. The end surface of the mounting block 52 is provided with a horizontal groove 522. By providing the horizontal groove 522, on the one hand, the rotating block 6 can be mounted on the mounting block 52, and on the other hand, the horizontal groove 522 enables the mounting block 52 to have outward tension, so that the rotating block 6 and the mounting block 52 have a certain friction force. When the rotating block 6 rotates to the position where the protruding block 41 is located in the first recess 61, the rotating block 6 can be prevented from rotating and resetting.

[0035] The rotating block 6 is provided with a plurality of weight-reducing grooves 68. By providing the weight-reducing grooves 68, on the one hand, the material can be saved, and on the other hand, the mass of the rotating block 6 is reduced, so that the push pin 21 can easily drive the rotating block 6.

[0036] The rotating block 6 is provided with two groups of fan-shaped grooves 67 with the through hole 66 as the axis. The two ends of the lower sliding block 5 are respectively provided with an insertion block 53 extending into the fan-shaped groove 67. By providing the insertion block 53, the rotating block 6 rotates more stably, so that the drawer 2 is pulled out or pushed in more stably.

[0037] The inner side of the linkage part 63 is provided with a lower abutting surface 64. In the application, the abutting surface is an inclined plane. By providing the lower abutting surface 64, when the drawer 2 is pushed into the cabinet body 1, the push pin 21 can abut against the lower abutting surface 64 and drive the rotating block 6 to rotate and reset.

[0038] The end surface of the rotating block 6 towards the push pin 21 extends a boss 65. By providing the boss 65, the contact area of the push pin 21 and the linkage part 63 is increased, so that the drawer 2 is pulled out or pushed in more labor-savingly, and the increased contact area can avoid the push pin 21 from being bent during use, thereby increasing the service life of the push pin 21.

[0039] The lower part of the fixed strip 3 is provided with a support block 32 for supporting the lower sliding block 5 at the bottom end. In the application, the support block 32 is a plug pin. The two sides of the fixed strip 3 are provided with through grooves, and the support block 32 is inserted into the through grooves and supports the sliding rod assembly.

[0040] The upper sliding block 4, the lower sliding block 5 and the rotating block 6 are made of plastic material, and the fixed strip 3 is made of aluminum material.

[0041] The basic working principle of the present application is as follows:

[0042] When one of the drawers 2 is pulled out of the cabinet body 1, the tumbler 21 drives the linkage 63 to rotate, so that the corresponding rotating block 6 rotates, and the rotating block 6 drives the corresponding upper sliding block 4 to move upward through the curved surface, so that the upper sliding block 4 at the top continuously compresses the spring 43. When the protrusion 41 is inserted into the first recess 61, that is, the stroke of the upper sliding block 4 is L, the top of the fixed strip 3 is pressed against the spring 43 by the upper sliding block 4 at the top, so that the plurality of slide rod assemblies are limited and cannot slide upward, and then the rotating block 6 corresponding to the remaining drawers 2 is locked, so that the remaining drawers 2 cannot be pulled out, thereby ensuring that the remaining drawers 2 cannot be pulled out. When the drawer 2 is pushed into the cabinet body 1, the tumbler 21 drives the rotating block 6 to rotate and reset, and the upper sliding block 4 resets under the elastic force of the spring 43. When the protrusion 41 is located in the second recess 62, all the rotating blocks 6 are unlocked. Through the above setting, only one drawer 2 can be pulled out at a time, so as to ensure the center of gravity of the cabinet body 1, and prevent the cabinet body 1 from being tilted and damaged or causing injury due to all the drawers 2 being pulled out.

[0043] The above is only the preferred embodiment of the present application, so any equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present application are included in the patent application scope of the present application.

Claims

1. A tip-over prevention mechanism of a drawer cabinet, which is installed in a cabinet body (1) of the drawer cabinet, at least two drawers (2) being slidably installed in the cabinet body (1) in an up-down arrangement, characterized in that: The anti-toppling mechanism comprises a fixed strip (3) arranged in the cabinet body (1) and a linkage interlocking device in sliding cooperation with the fixed strip (3), the stroke of the linkage interlocking device in the fixed strip (3) is L, the linkage interlocking device comprises a plurality of groups of slide rod assemblies corresponding to the drawers (2), the plurality of groups of slide rod assemblies are sequentially arranged in the fixed strip (3) from top to bottom, the plurality of groups of slide rod assemblies are interlocked, the slide rod assembly comprises an upper sliding block (4) and a lower sliding block (5) slidingly arranged in the fixed strip (3), the lower sliding block (5) is rotationally arranged with a rotating block (6), the upper portion of the rotating block (6) is arranged with a curved surface portion, the upper end of the fixed strip (3) is arranged with a spring (43) for pressing the upper sliding block (4) against the curved surface portion, the lower portion of the rotating block (6) is arranged with a linkage portion (63), the drawer (2) is arranged with a push pin (21) in cooperation with the linkage portion (63), when one of the drawers (2) is pulled out of the cabinet body (1), the push pin (21) drives the linkage portion (63) to rotate the corresponding rotating block (6), the rotating block (6) drives the corresponding upper sliding block (4) to move upward through the curved surface portion, and the stroke of the upper sliding block (4) is L, so that the rotating blocks (6) corresponding to the remaining drawers (2) are all locked; when the drawer (2) is pushed into the cabinet body (1), the push pin (21) drives the rotating block (6) to rotate and reset, the upper sliding block (4) is reset under the elastic force of the spring (43), so that all the rotating blocks (6) are unlocked.

2. A tip-preventing mechanism for a drawer cabinet according to claim 1, characterized in that: The upper sliding block (4) is arranged with a protrusion (41) abutting against the curved surface portion, the curved surface portion comprises a first recess (61) and a second recess (62), when the rotating block (6) rotates, the protrusion (41) moves up and down in the fixed strip (3) along the track of the first recess (61) and the second recess (62).

3. The tip-over prevention mechanism for a drawer cabinet of claim 1, wherein: A connecting rod (51) is arranged between adjacent slide rod assemblies, the connecting rod (51) is slidingly arranged in the fixed strip (3), and the two ends of the connecting rod (51) abut against the lower sliding block (5) of the previous slide rod assembly and the upper sliding block (4) of the next slide rod assembly, respectively.

4. A tip-preventing mechanism for a drawer cabinet according to claim 3, characterized in that: The fixed strip (3) is arranged with a guide groove (31), and the upper sliding block (4), the lower sliding block (5) and the connecting rod (51) are slidingly arranged in the guide groove (31).

5. The tip-over prevention mechanism for a drawer cabinet of claim 1, wherein: The linkage portion (63) is arranged with a lower abutting surface (64), when the drawer (2) is pushed into the cabinet body (1), the push pin (21) abuts against the lower abutting surface (64) and drives the rotating block (6) to rotate and reset.

6. A tip-preventing mechanism for a drawer cabinet according to claim 5, characterized in that: The end face of the rotating block (6) towards the push pin (21) side extends a boss (65).

7. The tip-over prevention mechanism for a drawer cabinet of claim 1, wherein: The rotating block (6) is arranged with a through hole (66), the lower sliding block (5) is arranged with a mounting block (52) clamped into the through hole (66), the mounting block (52) is arranged with a flange (521) preventing the rotating block (6) from being separated, and the end face of the mounting block (52) is arranged with a horizontal groove (522).

8. A tip-preventing mechanism for a drawer cabinet according to any one of claims 1-7, characterized in that: The lower portion of the fixed strip (3) is arranged with a support block (32) for supporting the bottom lower sliding block (5).

9. A tip-preventing mechanism for a drawer cabinet according to claim 1, characterized in that: The upper sliding block (4) on the top or / and top end of the fixed strip (3) is provided with a guide hole (42), and the spring (43) is installed in the guide hole (42).

10. The tip-over prevention mechanism for a drawer cabinet of claim 1, wherein: The upper sliding block (4), the lower sliding block (5) and the rotating block (6) are made of plastic material.

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