Lock with thickness-adjustable spring bolt
By designing a lock with adjustable bolt thickness, the problems of abnormal noise and maintenance difficulty caused by battery box wear were solved. The design also achieved bolt adaptation and limiting, improving the stability and maintenance convenience of the battery box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-03
AI Technical Summary
The existing potting and encapsulation method of battery boxes makes maintenance difficult, and power supply problems caused by battery aging or poor contact can occur. In addition, wear and tear can cause abnormal noises, which affects the user experience of electric vehicles.
Design a lock with adjustable bolt thickness. By setting a rotating cavity and a moving cavity in the lock body, the bolt thickness can be adjusted by using a rotating disk and a moving block to drive an adjusting block, thereby achieving bolt adaptation and limiting, and reducing abnormal noise caused by wear.
This technology allows for adjustment of the latch thickness after wear, reducing abnormal noise, improving the stability and ease of maintenance of the battery box, and reducing maintenance difficulty and economic losses.
Smart Images

Figure CN224078867U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lock structure technology and relates to a lock with adjustable bolt thickness. Background Technology
[0002] Most battery boxes on the market use potting compound to secure the battery pack. After placing the battery pack in the bottom cover of the battery box, potting compound is applied, then the top cover of the battery box is closed, and the opening is sealed with glue. While this method can stably and conveniently secure the battery pack and protection board structure, it also brings corresponding problems. For example, power supply problems caused by aging or poor contact of internal components of the battery pack, or short circuits caused by other reasons, make after-sales repair extremely difficult, or even impossible, and the faulty parts are simply scrapped. Since battery packs are relatively expensive, this method results in significant economic losses for customers and after-sales service providers.
[0003] To solve the above problems, the bottom cover of the battery box can be designed to be openable and closable, thereby enabling the maintenance function of the battery pack. However, during the use of the battery box, the contact point between the battery box and the locking tongue will inevitably wear down, causing the bottom cover to loosen. This will cause abnormal noise in the battery box during the operation of the electric vehicle. Therefore, a lock with adjustable locking tongue thickness is needed to solve the above problems. After wear occurs, the thickness of the locking tongue can be adjusted to reduce the abnormal noise of the battery box. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a lock with adjustable bolt thickness, which effectively solves the problems in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A lock with adjustable bolt thickness includes a lock body. The lock body has a rotating cavity and a moving cavity that are interconnected inside. The rotating cavity has a rotatable rotating disk on the front side. The moving cavity has a moving block that can move left and right as the rotating disk rotates. A fixed block is fixedly connected to the left side of the moving block. A height-adjustable adjusting block is slidably connected to the front side of the fixed block. The adjusting block has an adjusting mechanism inside for adjusting the height of the adjusting block.
[0007] Preferably, a first limiting groove is provided in the middle of the rotating disk, a first bolt is threadedly connected to the right side of the lock body, and a first limiting block is fixedly connected to the left side of the first bolt. The first limiting groove and the first limiting block cooperate with each other to form a structure in which the rotating disk rotates relative to the lock body.
[0008] Preferably, a lock cylinder is provided on the rear side of the rotating disk.
[0009] Preferably, a first actuating block is fixedly connected to the front side of the rotating disk, and a second actuating block is fixedly connected to the rear side of the right end of the moving block, with the right end face of the first actuating block abutting against the left end face of the second actuating block.
[0010] Preferably, a reset groove is provided at the right end of the moving block, and a reset spring is provided inside the reset groove, with the right end of the reset spring abutting against the inner wall of the moving cavity.
[0011] Preferably, a limiting groove is provided at the upper end of the movable block, and a second bolt is threadedly connected to the upper side of the lock body. The lower part of the second bolt passes through the lock body and is slidably connected to the limiting groove.
[0012] Preferably, a sliding groove is provided on the left side of the movable block, a first sliding block is fixedly connected to the rear side of the right part of the adjusting block, and a second sliding block is provided on the lower side of the first sliding block and fixedly connected to the adjusting block. Both the first sliding block and the second sliding block are slidably connected to the sliding groove.
[0013] Preferably, an adjustment groove is provided on the rear side of the fixing block, and a third bolt is abutted inside the adjustment groove. The front side of the third bolt is threadedly connected to the adjustment block.
[0014] Preferably, the adjusting mechanism includes a fourth bolt and an adjusting spring. An adjusting hole is provided on the upper side of the fixed block. The upper end face of the fourth bolt abuts against the bottom surface of the fixed block. A connecting groove is provided on the left side of the moving block. The adjusting spring is placed inside the connecting groove. A connecting block is fixedly connected to the right side of the adjusting block. The upper end of the adjusting spring abuts against the bottom of the connecting block.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. This utility model has a fixed block and an adjusting block that can adjust the height of the fixed block relative to it. By adjusting the position of the adjusting block relative to the fixed block, the adjusting block and the fixed block can be adapted to the tolerance gap generated during the installation of the lock body, thereby increasing the overall applicability of the device. It can also adjust the thickness of the lock tongue after wear, thereby reducing shaking and abnormal noise.
[0017] 2. This utility model has an adjustment mechanism, which allows for convenient adjustment of the height of the adjustment block during use, making it convenient for staff to operate. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the internal structure of the lock body in this utility model.
[0020] Figure 3 This is a schematic diagram of the exploded structure of this utility model.
[0021] Figure 4 This is an exploded structural diagram of the adjusting block and the fixing block in this utility model.
[0022] In the diagram: 1. Lock body; 2. Rotating cavity; 3. Moving cavity; 4. Rotating disc; 5. Moving block; 6. Fixed block; 7. Adjusting block; 8. Adjusting mechanism; 9. First limiting groove; 10. First bolt; 11. First limiting block; 12. Lock cylinder; 13. First actuating block; 14. Second actuating block; 15. Reset groove; 16. Reset spring; 17. Limiting groove; 18. Second bolt; 19. Sliding groove; 20. First sliding block; 21. Second sliding block; 22. Adjusting groove; 23. Third bolt; 24. Fourth bolt; 25. Adjusting spring; 26. Adjusting hole; 27. Connecting groove; 28. Connecting block; 29. Threaded hole; 30. Weight reduction groove. Detailed Implementation
[0023] 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.
[0024] The following is in conjunction with the appendix Figures 1 to 4 The specific embodiments of this utility model will be described in further detail.
[0025] Depend on Figures 1 to 4 As shown, this utility model includes a lock body 1. In order to facilitate the adjustment of the thickness of the lock tongue and make it easy to lock and engage, the lock body 1 has a rotating cavity 2 and a moving cavity 3 that are interconnected. A rotating disk 4 is provided on the front side of the rotating cavity 2. A moving block 5 that can move left and right with the rotating disk 4 is provided inside the moving cavity 3. A fixed block 6 is fixedly connected to the left side of the moving block 5. A height-adjustable adjusting block 7 is slidably connected to the front side of the fixed block 6. An adjusting mechanism 8 for adjusting the height of the adjusting block 7 is provided inside the adjusting block 7.
[0026] It should be noted that both the fixed block 6 and the adjusting block 7 have an inclined surface on their upper sides. The fixed block 6 and the adjusting block 7 together form a locking tongue. The thickness of the locking tongue can be adjusted by changing the height of the adjusting block 7 relative to the fixed block 6. When using the device, it can be installed as a regular lock. In this embodiment, the device is installed in the battery box frame to limit and fix the cover of the battery box. During the closing process of the cover, the side end face of the cover will contact the upper inclined surface of the fixed block 6 and the adjusting block 7, causing the moving block 5 to move to the right, so that the cover is closed relative to the battery box. After the cover is closed, the moving block 5 will automatically pop out and limit the cover under the action of the fixed block 6 and the adjusting block 7.
[0027] In use, the height of the adjusting block 7 relative to the fixed block 6 can be adjusted by the adjusting mechanism 8, so that the bottom of the adjusting block 7 can better limit the battery box cover, and the adjusting block 7 can adapt to the tolerance gap generated during the installation of the lock body 1, increasing the overall applicability of the device. When it is necessary to unlock the device, the rotating disk 4 can be rotated, and then the adjusting hole 26 and the fixed block 6 can be moved to the right by the moving block 5 to unlock the device.
[0028] Furthermore, by Figures 1 to 4 As shown, in order to facilitate the replacement of the lock cylinder 12, a first limiting groove 9 is provided in the middle of the rotating disk 4, a first bolt 10 is threadedly connected to the right side of the lock body 1, and a first limiting block 11 is fixedly connected to the left side of the first bolt 10. The first limiting groove 9 and the first limiting block 11 cooperate with each other to form a structure in which the rotating disk 4 rotates relative to the lock body 1.
[0029] Furthermore, by Figures 1 to 4 As shown, in order to facilitate operation by staff, a lock cylinder 12 is provided on the rear side of the rotating disk 4, and the rotating part of the lock cylinder 12 is fixedly connected to the rotating disk 4 by bolts.
[0030] In use, by rotating the first bolt 10 to disengage the first limiting block 11 from the first limiting groove 9, the rotating disk 4 and the lock cylinder 12 can be removed from the rear of the rotating cavity 2, making it convenient to inspect and replace the lock cylinder 12.
[0031] Furthermore, by Figures 1 to 4 As shown, a first actuating block 13 is fixedly connected to the front side of the rotating disk 4, and a second actuating block 14 is fixedly connected to the rear side of the right end of the moving block 5. The right end face of the first actuating block 13 abuts against the left end face of the second actuating block 14.
[0032] When in use, when the lock cylinder 12 is turned, the rotating part of the lock cylinder 12 will drive the rotating disk 4 to rotate, which in turn drives the second toggle block 14 to move to the right through the first toggle block 13, thereby unlocking the lock.
[0033] Furthermore, by Figures 1 to 4 As shown, in order to increase the service life of the device, a reset groove 15 is provided at the right end of the moving block 5. A reset spring 16 is provided inside the reset groove 15. The reset spring 16 is an ordinary spring, which will not be described in detail here. The right end of the reset spring 16 abuts against the inner wall of the moving cavity 3.
[0034] In use, by setting the reset groove 15, the device can use a longer reset spring 16, which can effectively reduce the maximum compression ratio of the reset spring 16 during deformation, thereby increasing the service life of the reset spring 16.
[0035] Furthermore, by Figures 1 to 4 As shown, in order to limit the movement of the moving block 5, a limiting groove 17 is provided at the upper end of the moving block 5, and a second bolt 18 is threadedly connected to the upper side of the lock body 1. The lower part of the second bolt 18 passes through the lock body 1 and is slidably connected to the limiting groove 17.
[0036] In use, the movement distance of the moving block 5 can be limited by the cooperation between the second bolt 18 and the limiting groove 17. In addition, after the second bolt 18 is removed from the lock body 1, the moving block 5 can be slid out from the moving cavity 3 to the left after the rotating disk 4 is removed.
[0037] Furthermore, by Figures 1 to 4 As shown, in order to make the use more stable after the thickness of the latch is adjusted, a sliding groove 19 is provided on the left side of the moving block 5, and a first sliding block 20 is fixedly connected to the rear side of the right side of the adjusting block 7. A second sliding block 21 is fixedly connected to the adjusting block 7 on the lower side of the first sliding block 20. Both the first sliding block 20 and the second sliding block 21 are slidably connected to the sliding groove 19.
[0038] Furthermore, by Figures 1 to 4 As shown, in order to facilitate the adjustment of the bolt thickness, an adjustment groove 22 is provided on the rear side of the fixing block 6. A third bolt 23 is abutted inside the adjustment groove 22. The front side of the third bolt 23 is threadedly connected to the adjustment block 7. The third bolt 23 fixes the position of the adjustment block 7 by friction with the adjustment groove 22.
[0039] Furthermore, by Figures 1 to 4 As shown, for the convenience of the staff, the adjustment mechanism 8 includes a fourth bolt 24 and an adjustment spring 25. The top of the fourth bolt 24 is provided with an internal hexagonal groove. An adjustment hole 26 is provided on the upper side of the fixing block 6. The upper end face of the fourth bolt 24 abuts against the bottom face of the fixing block 6. A connecting groove 27 is provided on the left side of the moving block 5. The adjustment spring 25 is placed inside the connecting groove 27. A connecting block 28 is fixedly connected to the right side of the adjustment block 7. The upper end of the adjustment spring 25 abuts against the bottom of the connecting block 28.
[0040] In use, the adjustment block 7 can be adjusted in height relative to the fixed block 6 by the up-and-down sliding cooperation of the first sliding block 20, the second sliding block 21 and the sliding groove 19. When it is necessary to adjust the thickness of the latch, the position of the adjustment block 7 can be adjusted. First, rotate the third bolt 23 to disengage the third bolt 23 from the adjustment groove 22. Then, the Allen wrench can be passed through the adjustment hole 26 and engaged with the fourth bolt 24. Rotate the fourth bolt 24. When the fourth bolt 24 is rotated counterclockwise, the fourth bolt 24 will move upward relative to the adjustment block 7. Since the top of the fourth bolt 24 abuts against the bottom of the fixed block 6, rotating the fourth bolt 24 will drive the adjustment block 7 to move downward. At this time, the adjustment spring 25 stores force, and the third bolt 23 slides relative to the adjustment groove 22. When the adjustment block 7 is adjusted to the appropriate position, the third bolt 23 can be tightened to fix the adjustment block 7 relative to the fixed block 6, thus completing the adjustment of the latch thickness.
[0041] It should be further noted that two threaded holes 29 for mounting and fixing the lock body 1 are also provided on the left side, and a weight reduction groove 30 is provided on the left side of the lock body 1.
[0042] When using this utility model, the height of the adjusting block 7 relative to the fixed block 6 can first be adjusted by the adjusting mechanism 8, so that the bottom of the adjusting block 7 can better limit the battery box cover, and the adjusting block 7 can adapt to the tolerance gap generated during the installation of the lock body 1, increasing the overall applicability of the device. When it is necessary to unlock the device, the rotating disk 4 can be rotated, and then the adjusting hole 26 and the fixed block 6 can be moved to the right by the moving block 5 to unlock the device.
[0043] This utility model features a novel structure, ingenious design, and simple and convenient operation. This design effectively facilitates the adjustment of the locking tongue thickness, enabling the device to lock easily and reducing the probability of shaking and abnormal noise during locking. It also simplifies operation for workers and increases the service life of the device.
[0044] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A lock with adjustable bolt thickness, comprising a lock body, characterized in that: The lock body has a rotating cavity and a moving cavity that are interconnected inside. The rotating cavity has a rotating disk on the front side. The moving cavity has a moving block inside that can move left and right as the rotating disk rotates. A fixed block is fixedly connected to the left side of the moving block. A height-adjustable adjusting block is slidably connected to the front side of the fixed block. The adjusting block has an adjusting mechanism inside for adjusting the height of the adjusting block.
2. The lock with adjustable bolt thickness according to claim 1, characterized in that: The rotating disk has a first limiting groove in the middle, the right side of the lock body is threaded with a first bolt, and the left side of the first bolt is fixedly connected with a first limiting block. The first limiting groove and the first limiting block cooperate with each other to form a structure in which the rotating disk rotates relative to the lock body.
3. A lock with adjustable bolt thickness according to claim 1, characterized in that: A lock cylinder is provided on the rear side of the rotating disk.
4. A lock with adjustable bolt thickness according to claim 1, characterized in that: A first actuating block is fixedly connected to the front side of the rotating disk, and a second actuating block is fixedly connected to the rear side of the right end of the moving block. The right end face of the first actuating block abuts against the left end face of the second actuating block.
5. A lock with adjustable bolt thickness according to claim 1, characterized in that: The right end of the moving block is provided with a reset groove, and a reset spring is provided inside the reset groove. The right end of the reset spring abuts against the inner wall of the moving cavity.
6. A lock with adjustable bolt thickness according to claim 1, characterized in that: The upper end of the movable block has a limiting groove, and the upper side of the lock body is threaded with a second bolt. The lower part of the second bolt passes through the lock body and is slidably connected to the limiting groove.
7. A lock with adjustable bolt thickness according to claim 1, characterized in that: The movable block has a sliding groove on its left side, and a first sliding block is fixedly connected to the rear side of the right part of the adjusting block. A second sliding block is fixedly connected to the adjusting block on the lower side of the first sliding block. Both the first sliding block and the second sliding block are slidably connected to the sliding groove.
8. A lock with adjustable bolt thickness according to claim 1, characterized in that: An adjustment groove is provided on the rear side of the fixing block, and a third bolt is abutted inside the adjustment groove. The front side of the third bolt is threadedly connected to the adjustment block.
9. A lock with adjustable bolt thickness according to claim 1, characterized in that: The adjustment mechanism includes a fourth bolt and an adjustment spring. An adjustment hole is provided on the upper side of the fixed block. The upper end face of the fourth bolt abuts against the bottom surface of the fixed block. A connecting groove is provided on the left side of the moving block. The adjustment spring is placed inside the connecting groove. A connecting block is fixedly connected to the right side of the adjustment block. The upper end of the adjustment spring abuts against the bottom of the connecting block.