Rack with sliding drawer

The locking assembly, consisting of levers, pull blocks, and connecting rods, solves the problems of locking reliability and ease of operation of existing drawer shelves with slide rails, enabling automatic locking and quick unlocking of drawers, thus improving safety and convenience.

CN224671102UActive Publication Date: 2026-08-25QINGDAO QINGTAI INTELLIGENT IND CO LTD
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Patent Information

Application Number
CN202521780823.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2026-08-25
Estimated Expiration
2035-08-20

AI Technical Summary

Technical Problem

The existing ball-operated locks on drawer shelves with slide rails are not reliable enough and are easily affected by external collisions or vibrations, causing the drawers to slide out unexpectedly. Manual locks are cumbersome to operate and cannot meet the requirements of locking security and convenience.

Method used

The locking assembly, consisting of a lever, a pull block, a connecting rod, and a spring, achieves automatic and secure locking of the drawer and easy unlocking with a simple push through a mechanical locking and automatic unlocking mechanism. The drawer height can also be adjusted via a button.

Benefits of technology

It improves the safety and convenience of drawer use, realizes automatic locking and quick unlocking of drawers, and enhances the practicality and space adaptability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of goods shelves, disclose a goods shelf with slide rail drawer, including stand, the stand inner wall fixedly connected with crossbeam, the stand inner wall slidingly connected with sliding block no.
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Description

Technical Field

[0001] This utility model relates to the field of shelving technology, and in particular to shelving with drawers with slide rails. Background Technology

[0002] In modern warehousing, office and home sectors, shelves with sliding drawers have become widely used storage equipment because they enable the orderly storage and convenient access of items. These shelves connect drawers to the shelf body through a sliding rail structure, allowing drawers to be smoothly pulled out along a fixed track. This effectively utilizes vertical space while significantly improving the efficiency of item retrieval and placement, meeting the needs for refined management of storage space in different scenarios.

[0003] Currently, the mainstream sliding racks mainly use ball bearing sliding rail systems. The rolling of steel balls in the rails reduces frictional resistance, enabling smooth push and pull of drawers. In terms of locking mechanism, the traditional solution is usually a ball-operated locking mechanism, which uses a spring ball to cooperate with the groove on the rack rail to complete the locking. To unlock, the drawer needs to be pulled outward to disengage the ball from the groove on the drawer panel. Alternatively, a rotating buckle or latch can be added to lock or unlock manually.

[0004] However, existing ball-operated locks are not reliable enough. When subjected to slight external impacts or vibrations, the drawer may accidentally slide out. Although manual locks can improve security, the operation steps are cumbersome and cannot meet the requirements for both locking security and ease of use. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a shelf with a sliding drawer, which aims to improve the problem that the reliability of the existing ball-operated lock is insufficient, and although manual locks can improve security, the operation steps are cumbersome and it is difficult to meet the requirements of locking security and ease of use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shelf with a drawer with sliding rails, including an upright column, a crossbeam fixedly connected to the inner wall of the upright column, a slider slidably connected to the inner wall of the upright column, a guide rail fixedly connected to one side of the outer wall of the slider, a back plate fixedly connected to one side of the outer wall of the guide rail, a clamping component provided on one side of the outer wall of the back plate, a roller provided on the inner wall of the guide rail, a base fixedly connected to one side of the outer wall of the roller, a limit block fixedly connected to the lower surface of the base, and a panel fixedly connected to the upper surface of the base;

[0007] The clamping assembly includes a clamping rod, the outer wall of which is disposed on one side of the back plate, one side of the inner wall of which is in contact with one side of the outer wall of the limiting block, one end of which is slidably connected to a pull block, the outer wall of which is slidably connected to a housing, the inner wall of which is rotatably connected to a hinge support, the upper surface of which is fixedly connected to the lower surface of the housing, and one side of the outer wall of the housing is fixedly connected to one side of the outer wall of the back plate.

[0008] Furthermore, a second slider is slidably connected to the inner wall of the outer shell, and a groove is formed on the upper surface of the second slider.

[0009] Furthermore, a connecting rod is rotatably connected to the upper surface of the outer shell, and one end of the connecting rod is slidably connected to the inner wall of a groove.

[0010] Furthermore, a spring is fixedly connected to one side of the outer wall of the second slider, one end of the spring is fixedly connected to one side of the inner wall of the outer shell, and a slide rod is fixedly connected to the other side of the second slider, with the outer wall of the slide rod slidably connected to the inner wall of the outer shell.

[0011] Furthermore, a cover plate is fixedly connected to the upper surface of the column, and a support plate is fixedly connected to the inner wall of the crossbeam.

[0012] Furthermore, the inner wall of the column is provided with a locking hole, and the inner wall of the slider is symmetrically provided with locking blocks on the left and right sides, and the outer wall of the locking block is slidably connected to the inner wall of the locking hole.

[0013] Furthermore, a second spring is fixedly connected to one side of the card block, a second slide rod is fixedly connected to the inner wall of the card block, a slide plate is slidably connected to the inner wall of the first slider, a second slide groove is provided on one side of the outer wall of the slide plate, and one end of the second slide rod is slidably connected to the inner wall of the second slide groove.

[0014] Furthermore, a button is fixedly connected to the upper surface of the slide plate, and the outer wall of the button is slidably connected to the inner wall of the slide plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, when the drawer is pushed in, the base pushes the first slide rod, which drives the second slider to compress the spring. At the same time, the pull block rotates the locking rod to the retraction path of the limit block, and the linkage self-locks to achieve mechanical locking. When unlocking, by gently pushing the panel, the first slide rod pushes the second slider to break the self-locking. The spring rebounds and drives the locking rod to rotate in the opposite direction to release the obstruction. Thus, the automatic and firm locking when the drawer is closed and the simple push unlocking are achieved, which improves the safety and convenience of using the drawer shelf and thus improves the practicality of the device.

[0017] 2. In this utility model, pressing the button drives the slide plate to slide, which in turn pushes the slide rail two to move laterally, causing the locking block to compress the spring two and retract into the slider one. When the button is released, the spring two rebounds and pushes the locking block to extend and engage with the locking hole, thereby achieving tool-free, fast, reliable and flexible multi-level drawer height adjustment capability, significantly improving the convenience and space adaptability of the shelf, and thus improving the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the shelf with drawers with slide rails proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the guide rail structure of the shelf with slide rail drawer proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram;

[0021] Figure 4 This is a schematic diagram of the limiting block structure of the shelf with slide rail drawer proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the locking rod structure of the shelf with slide rail drawer proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the locking block structure of the shelf with slide rail drawer proposed in this utility model.

[0024] Legend:

[0025] 1. Column; 2. Horizontal beam; 3. Cover plate; 4. Support plate; 5. Slider 1; 6. Guide rail; 7. Roller; 8. Base; 9. Panel; 10. Back plate; 11. Outer shell; 12. Slider 2; 13. Slide 1; 14. Connecting rod; 15. Spring 1; 16. Slide rod 1; 17. Pull block; 18. Hinge support; 19. Locking rod; 20. Limiting block; 21. Locking hole; 22. Locking block; 23. Slide rod 2; 24. Spring 2; 25. Slide plate; 26. Slide 2; 27. Button. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 - Figure 5 This utility model provides an embodiment of a shelf with a sliding drawer, including an upright 1, a crossbeam 2 fixedly connected to the inner wall of the upright 1, a cover plate 3 fixedly connected to the upper surface of the upright 1 to cover the top of the upright 1 to prevent dust accumulation, a support plate 4 fixedly connected to the inner wall of the crossbeam 2, a slider 5 slidably connected to the inner wall of the upright 1, a guide rail 6 fixedly connected to one side of the outer wall of the slider 5, a back plate 10 fixedly connected to one side of the outer wall of the guide rail 6, a clamping assembly provided on one side of the outer wall of the back plate 10, a roller 7 provided on the inner wall of the guide rail 6 to convert the sliding friction between the base 8 and the guide rail 6 into rolling friction, thereby reducing the resistance when the drawer is pushed and pulled, a base 8 fixedly connected to one side of the outer wall of the roller 7, a limit block 20 fixedly connected to the lower surface of the base 8, a panel 9 fixedly connected to the upper surface of the base 8, and a clamping assembly including a clamping rod 19, the outer wall of the clamping rod 19 being disposed on one side outside the back plate 10. One side of the inner wall of the locking rod 19 is in contact with one side of the outer wall of the limiting block 20. One end of the locking rod 19 is slidably connected to a pull block 17. The outer wall of the pull block 17 is slidably connected to a housing 11. The inner wall of the locking rod 19 is rotatably connected to a hinge support 18 for providing a rotation fulcrum for the locking rod 19. The upper surface of the hinge support 18 is fixedly connected to the lower surface of the housing 11. One side of the outer wall of the housing 11 is fixedly connected to one side of the outer wall of the back plate 10. The inner wall of the housing 11 is slidably connected to a slider 12. The upper surface of the slider 12 is provided with a groove 13. The upper surface of the housing 11 is rotatably connected to a connecting rod 14. One end of the connecting rod 14 is slidably connected to the inner wall of the groove 13. One side of the outer wall of the slider 12 is fixedly connected to a spring 15. One end of the spring 15 is fixedly connected to one side of the inner wall of the housing 11. The other side of the slider 12 is fixedly connected to a sliding rod 16. The outer wall of the sliding rod 16 is slidably connected to the inner wall of the housing 11.

[0028] Specifically, upright 1 bears the overall load of the shelf and has locking holes 21 to provide a vertical installation reference for the drawer slide system, enabling the shelf to have expandability and modular assembly. Cover plate 3 covers the top of upright 1 to prevent foreign objects from entering. Support plate 4 is welded to the inner wall of beam 2 to share the pressure transmitted by guide rail 6 and reduce the risk of beam 2 deformation. Together, they improve the shelf's protection and durability. Slider 5 is used to install and support guide rail 6 and can slide along the inner wall of upright 1 to adjust the height. Guide rail 6 and roller 7 roll relative to each other, and together they guide the sliding direction of base 8, enabling the drawer to enter smoothly. The effect of reducing frictional resistance during sliding is achieved by sliding slider 12 in conjunction with spring 15 and slide rod 16, which reciprocate and drive the pull block 17 to move. This achieves the effect of controlling the rotation of the locking lever 19 to lock and unlock the drawer. Slide groove 13 slides relative to connecting rod 14. When connecting rod 14 is at the self-locking critical angle, it prevents slider 12 from moving on its own, thus achieving the effect of stable locking of the drawer. When unlocking, gently push panel 9 to make base 8 move slightly. Slide rod 16 pushes slider 12 to break the self-locking of connecting rod 14. Spring 15 rebounds and drives locking lever 19 to rotate in the opposite direction and disengage from limit block 20.

[0029] Reference Figure 1 and Figure 6 The inner wall of the column 1 has a locking hole 21. The inner wall of the slider 5 has locking blocks 22 symmetrically arranged on the left and right sides. The outer wall of the locking block 22 is slidably connected to the inner wall of the locking hole 21. A spring 24 for providing elastic force is fixedly connected to the opposite side of the locking block 22. A slide rod 23 is fixedly connected to the inner wall of the locking block 22. A slide plate 25 is slidably connected to the inner wall of the slider 5. A slide groove 26 is opened on one side of the outer wall of the slide plate 25. One end of the slide rod 23 is slidably connected to the inner wall of the slide groove 26. A button 27 for providing operation points for the user is fixedly connected to the upper surface of the slide plate 25. The outer wall of the button 27 is slidably connected to the inner wall of the slider 5.

[0030] Specifically, slider 5 slides along the inner wall of column 1, and its internal locking block 22 engages with the locking hole 21 of column 1 to achieve tool-free multi-level height locking of the drawer unit, improving the adaptability of shelf space. When button 27 is pressed, it pushes slide plate 25 to slide inside slider 5. Slide groove 26 works with slide rod 23 to change the direction of movement. The two work together to convert the longitudinal sliding of slide plate 25 into the lateral sliding of slide rod 23, thereby driving the locking block 22 to extend and retract, realizing the locking and unlocking of slider 5 height adjustment. When spring 24 returns to its original position, it pushes the locking block 22 outward to engage with the locking hole 21, realizing automatic locking of drawer position and improving adjustment efficiency.

[0031] Working principle: When using the shelf, first press the button 27 on slider 5. The button 27 drives the slide plate 25 to slide inside slider 5, thereby pushing the slide bar 23 to move laterally. This causes the locking block 22 to compress the spring 24 and retract into slider 5. At this time, align the locking block 22 with the locking hole 21 of the column 1, release the button 27, and the spring 24 will rebound and push the locking block 22 to extend and lock into the locking hole 21, thus fixing the height of the drawer.

[0032] Secondly, when the drawer is placed in, pushing the base 8 moves the slide bar 16, which in turn moves the slider 12. The compression spring 15 stores elastic potential energy, and the connecting rod 14 swings within the slide groove 13. Simultaneously, the slider 12 moves the pull block 17. The movement of the pull block 17 forces the locking rod 19 to rotate around its pivot point with the hinge support 18. When the drawer is fully pushed in, the hook-shaped end of the locking rod 19 rotates to behind the path of the limit block 20. At this point, the angle of the connecting rod 14 within the slide groove 13 reaches the self-locking critical angle. The connecting rod 14 cannot swing back on its own, forcing the slider 12 to maintain the state of the compression spring 15. The locking rod 19... The stable blocking limit block 20 moves backward, thus achieving mechanical locking of the drawer. When the user needs to open the drawer, they need to push the panel 9 again in the closing direction, causing the base 8 to push the slide bar 16 to move the slider 12 inward a little more from its already compressed position. This changes the relative position of the upper slide groove 13 and the end of the connecting rod 14, thus breaking the self-locking. The spring 15 rebounds, pushing the slider 12 back to its initial position and causing the pull block 17 to move. The pull block 17 pulls the locking rod 19 to rotate in the opposite direction around the fulcrum of the hinge support 18. The hook-shaped end of the locking rod 19 then rotates away from the movement path of the limit block 20 and no longer blocks the limit block 20.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shelf with sliding drawers, including uprights (1), characterized in that: A crossbeam (2) is fixedly connected to the inner wall of the column (1), a slider (5) is slidably connected to the inner wall of the column (1), a guide rail (6) is fixedly connected to one side of the outer wall of the slider (5), a back plate (10) is fixedly connected to one side of the outer wall of the guide rail (6), a clamping component is provided on one side of the outer wall of the back plate (10), a roller (7) is provided on the inner wall of the guide rail (6), a base (8) is fixedly connected to one side of the outer wall of the roller (7), a limit block (20) is fixedly connected to the lower surface of the base (8), and a panel (9) is fixedly connected to the upper surface of the base (8). The clamping assembly includes a clamping rod (19), the outer wall of which is disposed on the outer side of the back plate (10), the inner wall of which is in contact with the outer wall of the limiting block (20), one end of which is slidably connected to a pull block (17), the outer wall of which is slidably connected to a housing (11), the inner wall of which is rotatably connected to a hinge support (18), the upper surface of which is fixedly connected to the lower surface of the housing (11), and one side of the outer wall of which is fixedly connected to one side of the outer wall of the back plate (10).

2. The shelf with slide rail drawers according to claim 1, characterized in that: The inner wall of the outer shell (11) is slidably connected to a second slider (12), and a groove (13) is provided on the upper surface of the second slider (12).

3. The shelf with slide rail drawers according to claim 1, characterized in that: A connecting rod (14) is rotatably connected to the upper surface of the outer shell (11), and one end of the connecting rod (14) is slidably connected to the inner wall of the slide groove (13).

4. The shelf with slide rail drawers according to claim 2, characterized in that: A spring (15) is fixedly connected to one side of the outer wall of the second slider (12). One end of the spring (15) is fixedly connected to one side of the inner wall of the outer shell (11). A slide rod (16) is fixedly connected to the other side of the second slider (12). The outer wall of the slide rod (16) is slidably connected to the inner wall of the outer shell (11).

5. The shelf with slide rail drawers according to claim 1, characterized in that: The upper surface of the column (1) is fixedly connected to a cover plate (3), and the inner wall of the crossbeam (2) is fixedly connected to a support plate (4).

6. The shelf with slide rail drawers according to claim 1, characterized in that: The inner wall of the column (1) is provided with a card hole (21), and the inner wall of the slider (5) is symmetrically provided with card blocks (22), and the outer wall of the card block (22) is slidably connected to the inner wall of the card hole (21).

7. The shelf with slide rail drawers according to claim 6, characterized in that: A spring (24) is fixedly connected to one side of the card block (22), a slide rod (23) is fixedly connected to the inner wall of the card block (22), a slide plate (25) is slidably connected to the inner wall of the slider (5), a slide groove (26) is provided on one side of the outer wall of the slide plate (25), and one end of the slide rod (23) is slidably connected to the inner wall of the slide groove (26).

8. The shelf with slide rail drawers according to claim 7, characterized in that: A button (27) is fixedly connected to the upper surface of the slide plate (25), and the outer wall of the button (27) is slidably connected to the inner wall of the slider (5).