A low-voltage switch cabinet drawer unit anti-falling mechanism

CN224890218UActive Publication Date: 2026-10-23TIANJIN WEIKUANG ELECTRIC EQUIP CO LTD
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Patent Information

Application Number
CN202521071122.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2026-10-23
Estimated Expiration
2035-05-28

AI Technical Summary

Technical Problem

[0004]为此,本实用新型提供一种低压开关柜抽屉单元防脱落机构,以解决低压开关柜抽屉单元推入后,在外力冲击时,容易产生位移,缺乏双重锁定机制,频繁操作后易产生磨损,导致锁止不牢靠,因持续振动导致卡扣自动脱开,容易造成抽屉滑出柜体的事故隐患的问题

Benefits of technology

[0015]通过弹簧预紧的卡块与抽屉卡槽的刚性啮合形成一级防护,配合可弹出的插杆与限位槽构成二级防护,显著提升震动环境下的可靠性,按压时通过杠杆原理同步解除两侧卡块锁定,单次操作即可完成解锁,较传统螺丝固定方式效率提升,具有高度的可靠性和稳定性,能够长期保持抽屉单元的位置不变。

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Abstract

The utility model discloses a low -voltage switchgear drawer unit anti -drop mechanism relates to low -voltage switchgear technical field, its technical scheme is: including low -voltage switchgear body, low -voltage switchgear body inside is equipped with a plurality of drawers, and the drawer one side is fixedly equipped with the panel, and the drawer both sides all are seted up with the draw -in groove, and low -voltage switchgear body one side is equipped with a plurality of anti -drop mechanism, the anti -drop mechanism includes the connecting shell, and the connecting shell fixedly is equipped with low -voltage switchgear body one side, and the connecting shell one side is equipped with the connecting rod, and the connecting rod penetrates the connecting shell and is connected with the connecting shell sliding, and the connecting rod outside is equipped with the second spring, and the second spring one end is fixedly connected with the connecting shell side wall, and the connecting rod one end is fixedly connected with the clamping block, and the beneficial effect is: through the rigid meshing of spring pre -tightness's clamping block and drawer draw -in groove and forms the first -class protection, and the cooperation can pop -out the plug rod and the limit slot constitute two -class protection, and the reliability under the vibration environment is improved significantly, and the position of drawer unit can be kept unchanged for a long time.
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Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, specifically to a mechanism for preventing drawer units of low-voltage switchgear from falling off. Background Technology

[0002] Low-voltage switchgear is suitable for industries such as power plants, petroleum, chemical, metallurgy, textile, and high-rise buildings, for power transmission, distribution, and energy conversion. In low-voltage switchgear, the drawer unit is a key component that carries various electrical components, and its safety and stability are of paramount importance.

[0003] When the existing low-voltage switch cabinet drawer unit is pushed in, it is prone to displacement under external impact. It lacks a double locking mechanism, and frequent operation can cause wear and tear, resulting in unreliable locking. Continuous vibration can cause the latch to automatically disengage, which can easily lead to the drawer sliding out of the cabinet and causing potential safety hazards. Utility Model Content

[0004] To address these issues, this utility model provides an anti-fall-off mechanism for drawer units in low-voltage switchgear, which solves the problems of drawer units in low-voltage switchgear easily shifting under external impact after being pushed in, lacking a double locking mechanism, being prone to wear after frequent operation, resulting in unreliable locking, and the drawer sliding out of the cabinet due to continuous vibration.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-voltage switch cabinet drawer unit anti-fall mechanism, including a low-voltage switch cabinet body, the low-voltage switch cabinet body having multiple drawers inside, a panel fixedly provided on one side of each drawer, slots provided on both sides of each drawer, and multiple anti-fall mechanisms provided on one side of the low-voltage switch cabinet body.

[0006] The anti-detachment mechanism includes a connecting shell, which is fixedly disposed on one side of the low-voltage switchgear body. A connecting rod is provided on one side of the connecting shell, which passes through the connecting shell and is slidably connected to it. A second spring is sleeved on the outside of the connecting rod. One end of the second spring is fixedly connected to the side wall of the connecting shell. A locking block is fixedly connected to one end of the connecting rod. The other end of the second spring is fixedly connected to the locking block. The locking block passes through the side wall of the low-voltage switchgear body and engages with a locking slot.

[0007] Preferably, the panel has a first inner groove, and a button is provided inside the first inner groove. A connecting rod is fixedly connected to one side of the button. The connecting rod passes through the drawer and is slidably connected to the drawer. A push block is fixedly connected to one end of the connecting rod, and the push block is located inside the slot.

[0008] Preferably, a third spring is sleeved on the outside of the connecting rod, and the third spring is located inside the first inner groove.

[0009] Preferably, a fixing component is provided on one side of the panel. The fixing component includes a second inner groove, which is opened inside the panel. A rotating rod is connected to the inside of the second inner groove through a bearing. The rotating rod extends out of the panel. A handle is fixedly connected to one end of the rotating rod. A protruding plate is fixedly sleeved on the outside of the rotating rod. Two connecting plates are provided inside the second inner groove. The connecting plates are in contact with the protruding plates. Two insert rods are fixedly connected to one side of the connecting plates. A first spring is sleeved on the outside of the two insert rods. The two rotating rods pass through the panel and are slidably connected to the panel.

[0010] Preferably, a sealing ring is provided at the connection between the rotating rod and the panel.

[0011] Preferably, multiple limiting grooves are provided on both sides of the inner side wall of the low-voltage switchgear body, and the insertion rod extends into the limiting groove.

[0012] Preferably, the button slides inside the first inner groove.

[0013] Preferably, the drawer slides inside the low-voltage switchgear body.

[0014] The present invention has the following advantages:

[0015] The rigid engagement of the spring-loaded locking blocks with the drawer slots forms the first level of protection, while the pop-out rod and limit slot constitute the second level of protection, significantly improving reliability in vibration environments. When pressed, the locking blocks on both sides are released simultaneously through the lever principle, and unlocking can be completed in a single operation. This method is more efficient than the traditional screw fixing method, has high reliability and stability, and can keep the position of the drawer unit unchanged for a long time. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1A schematic diagram of the overall structure of this utility model;

[0019] Figure 2 Top sectional view of the overall structure provided by this utility model;

[0020] Figure 3 A partial sectional view of the overall structure provided for this utility model;

[0021] Figure 4 A three-dimensional view of the drawer provided for this utility model;

[0022] Figure 5 Provided by this utility model Figure 2 Enlarged view of the structure of section A in the middle;

[0023] Figure 6 Provided by this utility model Figure 2 Enlarged view of the structure of section B in the middle;

[0024] Figure 7 Provided by this utility model Figure 3 Enlarged view of the structure of section C.

[0025] In the diagram: 1. Low-voltage switchgear body; 2. Panel; 3. Handle; 4. Button; 5. Connecting shell; 6. Drawer; 7. First spring; 8. Rotating rod; 9. Limiting groove; 10. Insert rod; 11. Slot; 12. Push block; 13. Connecting rod; 14. Slot; 15. Connecting rod; 16. Second spring; 17. First inner groove; 18. Third spring; 19. Second inner groove; 20. Connecting plate; 21. Protruding plate. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] See attached document Figure 1 - Appendix Figure 7 The present invention provides a low-voltage switch cabinet drawer unit anti-fall mechanism, including a low-voltage switch cabinet body 1, the low-voltage switch cabinet body 1 having multiple drawers 6 inside, a panel 2 fixedly provided on one side of each drawer 6, slots 11 provided on both sides of each drawer 6, and multiple anti-fall mechanisms provided on one side of the low-voltage switch cabinet body 1.

[0028] The anti-detachment mechanism includes a connecting shell 5, which is fixedly disposed on one side of the low-voltage switchgear body 1. A connecting rod 15 is provided on one side of the connecting shell 5. The connecting rod 15 passes through the connecting shell 5 and is slidably connected to the connecting shell 5. A second spring 16 is sleeved on the outside of the connecting rod 15. One end of the second spring 16 is fixedly connected to the side wall of the connecting shell 5. A locking block 14 is fixedly connected to one end of the connecting rod 15. The other end of the second spring 16 is fixedly connected to the locking block 14. The locking block 14 passes through the side wall of the low-voltage switchgear body 1 and engages with the locking groove 11. The drawer 6 slides inside the low-voltage switchgear body 1.

[0029] In this embodiment, the drawer 6 is pushed into the low-voltage switch cabinet body 1, and the locking block 14 is locked into the slot 11, so that the position of the drawer 6 is limited.

[0030] To achieve the purpose of movement, the device adopts the following technical solution: The panel 2 has a first inner groove 17, and a button 4 is provided inside the first inner groove 17. A connecting rod 13 is fixedly connected to one side of the button 4. The connecting rod 13 passes through the drawer 6 and is slidably connected to the drawer 6. A push block 12 is fixedly connected to one end of the connecting rod 13. The push block 12 is located inside the slot 11. A third spring 18 is sleeved on the outside of the connecting rod 13. The third spring 18 is located inside the first inner groove 17. The button 4 slides inside the first inner groove 17. When it is necessary to pull out the drawer 6, the button 4 is pressed. The button 4 pushes the connecting rod 13 to move. The third spring 18 outside the connecting rod 13 is compressed. The connecting rod 13 moves and pushes the push block 12 to move. The push block 12 moves and pushes the slot block 14 to move, so that the slot block 14 leaves the slot 11. The second spring 16 on one side of the slot 11 is compressed. The handle 3 is dragged to facilitate the movement of the drawer 6 out of the low-voltage switch cabinet body 1.

[0031] To achieve the purpose of fixation, this device adopts the following technical solution: A fixing component is provided on one side of the panel 2. The fixing component includes a second inner groove 19, which is opened inside the panel 2. A rotating rod 8 is connected to the inside of the second inner groove 19 through a bearing. The rotating rod 8 extends out of the panel 2. A handle 3 is fixedly connected to one end of the rotating rod 8. A protruding plate 21 is fixedly sleeved on the outside of the rotating rod 8. Two connecting plates 20 are provided inside the second inner groove 19. The connecting plates 20 are in contact with the protruding plates 21. Two insert rods 10 are fixedly connected to one side of the connecting plates 20. A first spring is sleeved on the outside of the two insert rods 10. 7. The two rotating rods 8 pass through the panel 2 and are slidably connected to the panel 2. A sealing ring is provided at the connection between the rotating rod 8 and the panel 2. Multiple limiting grooves 9 are provided on both sides of the inner side wall of the low-voltage switch cabinet body 1. The insertion rod 10 extends into the limiting groove 9. When the handle 3 is rotated, the handle 3 drives the rotating rod 8 to rotate. The rotating rod 8 drives the convex plate 21 to rotate. The convex plate 21 rotates and pushes the connecting plate 20 to move. The connecting plate 20 pushes the insertion rod 10 to move. The first spring 7 outside the insertion rod 10 is compressed, so that the insertion rod 10 is inserted into the limiting groove 9, further fixing the position of the drawer 6 and the panel 2. The sealing ring provides a sense of obstruction to the rotation of the rotating rod 8 and prevents the rotating rod 8 from rotating on its own.

[0032] The usage process of this utility model is as follows: When using this utility model, push the drawer 6 into the low-voltage switch cabinet body 1, and the locking block 14 is locked into the slot 11, so that the position of the drawer 6 is limited. When it is necessary to pull out the drawer 6, press the button 4. The button 4 pushes the connecting rod 13 to move, and the third spring 18 outside the connecting rod 13 is compressed. The connecting rod 13 moves and pushes the push block 12 to move. The push block 12 moves and pushes the locking block 14 to move, so that the locking block 14 leaves the slot 11. The second spring 16 on one side of the slot 11 is compressed. Pull the handle 3 to easily move the drawer 6 out of the low-voltage switch cabinet body 1. In order to further improve the stability of the drawer 6, rotate the handle 3. The handle 3 drives the rotating rod 8 to rotate. The rotating rod 8 drives the convex plate 21 to rotate. The convex plate 21 rotates and pushes the connecting plate 20 to move. The connecting plate 20 pushes the insertion rod 10 to move. The first spring 7 outside the insertion rod 10 is compressed, so that the insertion rod 10 is inserted into the limiting groove 9, further fixing the position of the drawer 6 and the panel 2.

[0033] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A mechanism for preventing the drawer unit of a low-voltage switchgear from falling off, comprising a low-voltage switchgear body (1), characterized in that: The low-voltage switch cabinet body (1) is provided with multiple drawers (6) inside. A panel (2) is fixedly provided on one side of the drawer (6). Slots (11) are provided on both sides of the drawer (6). Multiple anti-dropping mechanisms are provided on one side of the low-voltage switch cabinet body (1). The anti-detachment mechanism includes a connecting shell (5), which is fixedly disposed on one side of the low-voltage switchgear body (1). A connecting rod (15) is provided on one side of the connecting shell (5). The connecting rod (15) passes through the connecting shell (5) and is slidably connected to the connecting shell (5). A second spring (16) is sleeved on the outside of the connecting rod (15). One end of the second spring (16) is fixedly connected to the side wall of the connecting shell (5). A locking block (14) is fixedly connected to one end of the connecting rod (15). The other end of the second spring (16) is fixedly connected to the locking block (14). The locking block (14) passes through the side wall of the low-voltage switchgear body (1). The locking block (14) is engaged with the locking groove (11). The panel (2) has a first inner groove (17) inside, and a button (4) is provided inside the first inner groove (17). A connecting rod (13) is fixedly connected to one side of the button (4). The connecting rod (13) passes through the drawer (6) and is slidably connected to the drawer (6). A push block (12) is fixedly connected to one end of the connecting rod (13). The push block (12) is located inside the slot (11). The push block (12) is used to push the slot block (14) out of the slot (11). A fixing component is provided on one side of the panel (2). The fixing component includes a second inner groove (19). The second inner groove (19) is opened inside the panel (2). A rotating rod (8) is connected inside the second inner groove (19) through a bearing. The rotating rod (8) extends out of the panel (2). A handle (3) is fixedly connected to one end of the rotating rod (8). A protruding plate (21) is fixedly sleeved on the outside of the rotating rod (8). Two connecting plates (20) are provided inside the second inner groove (19). The connecting plate (20) is in contact with the protruding plate (21). Two insert rods (10) are fixedly connected to one side of the connecting plate (20). A first spring (7) is sleeved on the outside of the two insert rods (10). The two insert rods (10) penetrate the panel (2) and are slidably connected to the panel (2). The low-voltage switch cabinet body (1) has multiple limiting grooves (9) on both sides inside, and the plug rod (10) extends into the limiting groove (9).

2. The anti-fall-off mechanism for a low-voltage switchgear drawer unit according to claim 1, characterized in that: The connecting rod (13) is fitted with a third spring (18), which is located inside the first inner groove (17).

3. The anti-fall-off mechanism for a low-voltage switchgear drawer unit according to claim 1, characterized in that: A sealing ring is provided at the connection between the rotating rod (8) and the panel (2).

4. The anti-fall-off mechanism for a low-voltage switchgear drawer unit according to claim 1, characterized in that: The button (4) slides inside the first inner groove (17).

5. The anti-fall-off mechanism for a low-voltage switchgear drawer unit according to claim 1, characterized in that: The drawer (6) slides inside the low-voltage switch cabinet body (1).