Lock for distribution box
By designing a lock for the base to accommodate handles and locking components, the problem of loose locks in the distribution box and easy handles is solved, and the reliable locking and safety improvement of the lock is achieved.
Patent Information
- Application Number
- CN202422314733.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The rotating box locks of existing distribution box locks are easily loosened, resulting in the box door opening automatically without locking tongue blocking, posing safety hazards, and the handle is easily damaged.
A lock is designed including a base, a first lock core and a locking assembly. The base accommodates the handle to prevent it from convex, and is locked with the box door through the first lock core. The locking assembly is stuck to the base to ensure reliable locking. After the locking assembly fails, the box door is still locked in conjunction with the box door.
Effectively prevent the handle from being damaged, ensure that the lock is not easy to loosen, avoid automatic opening of the distribution box, improve safety, and avoid safety accidents.
Smart Images
Figure CN223135880U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to a lock for a distribution box. Background Art
[0002] The distribution box lock refers to the lock used on the distribution box. Most of the existing distribution boxes in the power transmission and distribution field use a rotary box lock between the box door and the box body. A handle is usually configured on the box door. After inserting the key into the lock and rotating to unlock, the distribution box is opened through the handle. The lock and the handle of this structure have the following problems: 1. The rotary box lock is usually installed by screwing. After repeated use, it is easy to loosen, resulting in the failure of locking. Without the lock tongue blocking, the box door is likely to open automatically, which may lead to safety accidents; 2. The handle usually protrudes outward and is easily damaged. Summary of the Invention
[0003] Aiming at the deficiencies of the prior art, the utility model provides a lock for a distribution box.
[0004] The technical solution provided by the utility model is as follows:
[0005] A lock for a distribution box includes a base, a first lock core, a locking component, and a handle. The base is provided with a first groove and a second groove. One end of the handle is hinged to the first lock core and installed in the first groove, and the other end is provided with a limiting groove that forms a limiting fit with the locking component. The locking component is clamped in the second groove.
[0006] The locking component includes a second lock core, a lock shell, a lock tongue, and a lock seat. The lock seat is installed in the second groove. The lock shell and the lock tongue are installed in the lock seat. One end of the lock tongue is provided with a limiting hook that cooperates with the limiting groove, and the other end is provided with a limiting protrusion that is linked with the lock shell. The second lock core is installed in the lock shell.
[0007] The limiting protrusion is provided with an inclined surface, and the lock shell is provided with a driving rod. The lower end of the driving rod is provided with a driving inclined surface, and the driving rod and the limiting protrusion form an inclined pushing fit.
[0008] The lock seat is provided with a first buckle, and the lock shell is provided with a second buckle. The lock seat and the second groove are buckled through the first buckle, and the lock shell and the lock seat are buckled through the second buckle.
[0009] The lower end of the second lock core is provided with a cuboid-shaped convex block, and the lock tongue is provided with a limiting groove corresponding to the cuboid-shaped convex block. The width of the limiting groove is adapted to the short side of the cuboid-shaped convex block.
[0010] The lock shell is provided with a partition board, which divides the lock shell into an upper half and a lower half. The second lock core is installed in the upper half, the lock tongue is slidably arranged in the lower half, and the lower half is provided with a limiting cylinder for restricting the excessive displacement of the lock tongue.
[0011] Advantages of the present utility model: By providing a base, the base can accommodate the handle so that it does not protrude outward, preventing the handle from being damaged; by providing two locking mechanisms, namely a first lock core and a locking component, the first lock core is used to cooperate with the box door for locking, and the locking component is used to lock the handle. The locking component is snap-fitted to the base and is not easily loosened. When the locking component fails, since the first lock core still cooperates with the box door for locking, the box door will not open automatically, effectively ensuring the safety of the distribution box and avoiding safety accidents. Description of the Drawings
[0012] Figure 1 is a structural diagram of an embodiment of the present utility model;
[0013] Figure 2 is an exploded structural diagram of an embodiment of the present utility model;
[0014] Figure 3 is a sectional structural diagram of an embodiment of the present utility model. Detailed Embodiment
[0015] The following further describes the embodiments of the present utility model with reference to the drawings.
[0016] As Figure 1 shown, a lock for a distribution box includes a base 1, a first lock core 2, a locking component 4, and a handle 2.
[0017] As Figures 2-3 shown, the base 1 is provided with a first groove 11 and a second groove 12. One end of the handle 2 is hinged to the first lock core 2 and installed in the first groove 11. The first groove 11 can accommodate the handle so that it does not protrude outward, preventing the handle from being damaged. The other end of the handle 2 is provided with a limit groove 13 that forms a limit fit with the locking component 4.
[0018] The locking component 4 includes a second lock core 21, a lock shell 23, a lock tongue 27, and a lock seat 26. The lock seat 26 is provided with a first buckle 19, and the lock shell 23 is provided with a second buckle 17. The lock seat 26 and the second groove 12 are snap-fitted through the first buckle 19, and the lock shell 23 and the lock seat 26 are snap-fitted through the second buckle 17. Through snap connection, the locking component 4 is not easily loosened, ensuring reliable locking.
[0019] The lock housing 23 is provided with a partition plate 16 which divides the lock housing 23 into an upper half and a lower half. The second lock core 21 is installed in the upper half, and the lock tongue 27 is slidably arranged in the lower half. The lower half is provided with a limiting cylinder 15 to prevent the lock tongue from being displaced excessively and unable to reset. One end of the lock tongue is provided with a limiting hook 28 that cooperates with the limiting groove 13, and the other end is provided with a limiting protrusion 30 that is linked with the lock housing. The limiting protrusion 30 is provided with an inclined surface 31. The lock housing 23 is provided with a driving rod 24, and the lower end of the driving rod 24 is provided with a driving inclined surface 25. The driving rod 24 and the limiting protrusion 30 form an inclined pushing fit. The lower end of the second lock core 21 is provided with a rectangular parallelepiped-shaped convex block 22, and the lock tongue 27 is provided with a limiting groove 29 corresponding to the rectangular parallelepiped-shaped convex block 22. The width of the limiting groove 29 is adapted to the short side of the rectangular parallelepiped-shaped convex block 22.
[0020] The unlocking process of this lock is as follows:
[0021] As Figure 3 shown, when the corresponding key is inserted into the second lock core 21 and rotated, after the second lock core 21 rotates, the rectangular parallelepiped-shaped convex block 22 at its lower end rotates to be adapted to the limiting groove 29 so that the second lock core 21 and the lock housing 23 can move downward. Press the second lock core 21 and the lock housing 23 downward, and the driving rod 24 moves downward with the lock housing 23 to push the lock tongue 27 to move rightward so that the limiting hook 28 disengages from the limiting groove 13. Then lift the handle so that its free end disengages from the first groove 11, and rotate the handle to drive the first lock core 2 to rotate to complete the unlocking. When the locking assembly 4 fails, since the handle is still located in the first groove 11 and the first lock core still cooperates with the box door for locking, the box door will not open automatically, effectively ensuring the safety of the distribution box and avoiding safety accidents.
[0022] The embodiments should not be construed as limiting the present invention, and any non-creative improvements based on the spirit of the present invention should be regarded as within the protection scope of the present invention.
Claims
1. A lock for a distribution box, characterized in that: It includes a base, a first lock core, a locking component, and a handle. The base is provided with a first groove and a second groove. One end of the handle is hinged to the first lock core and installed in the first groove, and the other end is provided with a limiting groove that forms a limiting fit with the locking component. The locking component is snap-fitted in the second groove.
2. The lock for a distribution box according to claim 1, characterized in that: The locking component includes a second lock core, a lock case, a lock tongue, and a lock seat. The lock seat is installed in the second groove. The lock case and the lock tongue are installed in the lock seat. One end of the lock tongue is provided with a limiting hook that cooperates with the limiting groove, and the other end is provided with a limiting protrusion that is linked with the lock case. The second lock core is installed in the lock case.
3. The lock for a distribution box according to claim 2, wherein: The limiting protrusion is provided with an inclined surface. The lock case is provided with a driving rod. The lower end of the driving rod is provided with a driving inclined surface. The driving rod and the limiting protrusion form an inclined pushing fit.
4. The lock for a distribution box according to claim 2 or 3, characterized in that: The lock seat is provided with a first buckle, and the lock case is provided with a second buckle. The lock seat and the second groove are snap-fastened through the first buckle, and the lock case and the lock seat are snap-fastened through the second buckle.
5. The lock for a distribution box according to claim 2, characterized in that: The lower end of the second lock core is provided with a cuboid-shaped convex block. The lock tongue is provided with a limiting groove corresponding to the cuboid-shaped convex block. The width of the limiting groove is adapted to the short side of the cuboid-shaped convex block.
6. The lock for a distribution box according to claim 2, characterized in that: The lock case is provided with a partition board. The partition board divides the lock case into an upper half and a lower half. The second lock core is installed in the upper half, the lock tongue is slidably arranged in the lower half, and the lower half is provided with a limiting cylinder for restricting the excessive displacement of the lock tongue.