Compact structure lock

Abstract

The utility model discloses a compact structure lock, including lock shell, lock core, row piece subassembly and elastic part, through the extension direction of first movable slot and second movable slot is perpendicular to each other, and row piece subassembly is two groups settings, and two groups of row piece subassembly are set in corresponding first movable slot and second movable slot respectively and along first movable slot and second movable slot extension direction to and fro activity, make two groups of row piece's activity direction respectively be located in same plane, need to exert force to row piece subassembly from different directions when using external tool to unlock, and cooperate two groups of row piece and first movable slot and second movable slot are set up to each other close, effectively compressed the activity space and range when unlocking of external unlocking space, further increase the difficulty of unlocking, and the anti -theft performance is better.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a compact lock. Background Technology

[0002] Locks are devices that serve a sealing function, including locks, keys, and their accessories. They are generally defined as "sealing devices that can only be opened with a key." Besides keys, locks can also be opened using light, electricity, magnetism, sound, and fingerprint signals. Locks are an integral part of people's daily lives; every household needs different types of locks.

[0003] To enhance security, locks typically employ two symmetrical rows of plates inside the lock cylinder. Unlocking requires simultaneously moving both rows of plates with both sides of the key. However, in existing locks, the two rows of plates move in the same plane. When using external tools, only horizontal force needs to be applied to move the plates. Furthermore, the existing rows of plates are spaced far apart, providing ample room for external tools to operate, significantly reducing the difficulty of unlocking and compromising security. Therefore, further improvements to the existing lock structure are necessary. Utility Model Content

[0004] In view of this, the present invention addresses the shortcomings of the existing technology, and its main purpose is to provide a compact lock that can effectively solve the problems of existing locks where the two rows of plates are located in the same plane, the unlocking range is large, and the anti-theft performance is poor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A compact lock includes a lock housing, a lock cylinder, a plate assembly, and a resilient element. The lock housing has a mounting cavity, and a first mounting groove and a second mounting groove communicating with the mounting cavity are formed within the lock housing. The lock cylinder is rotatably disposed in the mounting cavity and has a lock hole. The lock cylinder has a third mounting groove and a fourth mounting groove corresponding to the first and second mounting grooves, respectively. The first and third mounting grooves cooperate to form a first movable groove, and the second and fourth mounting grooves cooperate to form a second movable groove. The extension directions of the first and second movable grooves are perpendicular to each other, and the first and second movable grooves are arranged close to each other. The plate assembly is arranged in two sets, each set being disposed in the corresponding first and second movable grooves and moving back and forth along the extension directions of the first and second movable grooves. The inner end of the plate assembly extends inward into the lock hole. The resilient element is disposed in the first and second mounting grooves and causes the corresponding plate assembly to move toward the lock hole.

[0007] As a preferred embodiment, the outer wall of the lock housing is provided with a limiting groove that connects the outer ends of the first mounting groove and the second mounting groove. A detachable limiting plate is provided in the limiting groove, and the two ends of the elastic element abut against the corresponding limiting plate sidewall and the plate assembly, respectively.

[0008] As a preferred embodiment, the inner wall of the lock hole is integrally provided with a limiting strip protruding outward, and the limiting strip is positioned close to the third mounting groove and the fourth mounting groove.

[0009] As a preferred embodiment, each row assembly includes a first row and a second row of strips that are separately arranged, the first row of strips being located in a corresponding first mounting slot and a corresponding second mounting slot, and the second row of strips being located in a corresponding third mounting slot and a corresponding fourth mounting slot.

[0010] As a preferred embodiment, the first row of plates has a cavity with an outer opening, and one end of the elastic member extends inward into the cavity and abuts against the inner wall of the cavity.

[0011] As a preferred embodiment, the inner end openings of the third and fourth mounting slots are provided with a first limiting part protruding inward, and the upper end of the second row of plates is provided with a second limiting part that cooperates with the first limiting part.

[0012] As a preferred embodiment, the inner end of the second row of strips has a tapered first guide surface.

[0013] As a preferred embodiment, the lower end of the first row of plates is provided with a tapered second guide surface, and the upper end of the second row of plates is provided with an arc-shaped third guide surface, with the first guide surface and the third guide surface in contact with each other.

[0014] As a preferred embodiment, the elastic element is a spring.

[0015] As a preferred embodiment, the lock housing has a guide post, and the outer wall of the lock cylinder is recessed with a guide groove that is in the same direction of rotation as the lock cylinder and cooperates with the guide post, and the guide post extends inward into the guide groove.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] With the first and second movable slots extending perpendicularly to each other, the tile arrangement components are arranged in two sets. The two sets of tile arrangement components are respectively set in the corresponding first and second movable slots and move back and forth along the extension directions of the first and second movable slots, so that the movement directions of the two sets of tile arrangement components are located on the same plane. When unlocking with external tools, force needs to be applied to the tile arrangement components from different directions. In addition, the two sets of tile arrangement components are set close to each other, which effectively compresses the external unlocking space and the range of movement when unlocking, further increasing the difficulty of unlocking and improving the anti-theft performance.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention in use.

[0020] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0021] Figure 3 This is another exploded view of a preferred embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention.

[0023] Explanation of reference numerals in the attached diagram:

[0024] 10. Lock case 101. Mounting cavity

[0025] 102. First mounting slot; 103. Second mounting slot

[0026] 104. Limiting groove; 11. Limiting plate

[0027] 12. Guide post; 20. Lock cylinder

[0028] 201, Lock hole; 202, Third mounting slot

[0029] 203. Fourth mounting slot; 204. First movable slot

[0030] 205. Second movable groove; 206. Guide groove

[0031] 21. Limiting bar 22. First limiting part

[0032] 30. Film arrangement assembly; 301. Cavity

[0033] 31. First row of films; 311. Second guide surface.

[0034] 32. Second row of film; 321. Second limiting part.

[0035] 322. First guide surface; 323. Third guide surface

[0036] 40. Elastic component; 50. Key. Detailed Implementation

[0037] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a lock housing 10, a lock cylinder 20, a plate assembly 30, and an elastic element 40.

[0038] The lock housing 10 has a mounting cavity 101, and a first mounting groove 102 and a second mounting groove 103 communicating with the mounting cavity 101 are formed within the lock housing 10. In this embodiment, a limiting groove 104 communicating with the outer ends of the first mounting groove 102 and the second mounting groove 103 is formed on the outer side wall of the lock housing 10, and a detachable limiting plate 11 is provided within the limiting groove 104. The lock housing 10 has a guide post 12.

[0039] The lock cylinder 20 is rotatably disposed in the mounting cavity 101. The lock cylinder 20 has a lock hole 201 for inserting an external key 50 to unlock. The lock cylinder 20 has a third mounting groove 202 and a fourth mounting groove 203 corresponding to the first mounting groove 102 and the second mounting groove 103, respectively. The first mounting groove 102 and the third mounting groove 202 cooperate to form a first movable groove 204. The second mounting groove 103 and the fourth mounting groove 203 cooperate to form a second movable groove 205. The extension directions of the first movable groove 204 and the second movable groove 205 are perpendicular to each other, and the first movable groove 204 and the second movable groove 205 are disposed close to each other. In this embodiment, a limiting strip 21 is integrally formed on the inner sidewall of the lock hole 201, protruding outward. The limiting strip 21 is located close to the third mounting groove 202 and the fourth mounting groove 203. The limiting strip 21 not only prevents foolproof operation when used with an external key, but also further compresses the space for unlocking within the lock hole 201, increasing the difficulty of unlocking with external tools. A first limiting part 22 protrudes inward at the inner opening of the third mounting groove 202 and the fourth mounting groove 203. A guide groove 206 is recessed on the outer sidewall of the lock cylinder 20, rotating in the same direction as the lock cylinder 20 and cooperating with the guide post 12. The guide post 12 extends inward into the guide groove 206. The cooperation between the guide groove 206 and the guide post 12 not only guides the rotation of the lock cylinder 20 but also limits its rotation range.

[0040] The latching assembly 30 is configured in two sets, each set positioned in a corresponding first movable slot 204 and second movable slot 205 and moving back and forth along the extension direction of the first and second movable slots 204 and 205. When unlocking with an external unlocking tool, forces in different directions need to be applied to the two rows of latching assemblies 30, effectively increasing the difficulty of unlocking with an external unlocking tool. The inner end of each latching assembly 30 extends inward into the lock hole 201. In this embodiment, each latching assembly 30 includes a separately configured first row of latches 31 and a second row of latches 32. The first row of latches 31 is located in a corresponding first mounting slot 102 and a second mounting slot 103, and the second row of latches 32 is located in a corresponding third mounting slot 202 and a fourth mounting slot 203. During unlocking, an external key is inserted into the lock hole and pushes the second row of latches 32 outward, so that the contact surface of the first row of latches 31 and the second row of latches 32 is flush with the inner wall of the mounting cavity 101, thereby allowing the lock cylinder 20 to be rotated to achieve the unlocking process. The first row of plates 31 has a cavity 301 with an outer opening. The upper end of the second row of plates 32 has a second limiting part 321 that protrudes outward and cooperates with the first limiting part 22. The cooperation between the second limiting part 321 and the first limiting part 22 limits the range of motion of the second row of plates 32, preventing the second row of plates 32 from completely entering the lock hole 201. The inner end of the second row of plates 32 has a conical first guide surface 322, which facilitates the upward movement of the second row of plates 32 when the external key 50 is inserted. The lower end of the first row of plates 31 has a conical second guide surface 311, and the upper end of the second row of plates 32 has an arc-shaped third guide surface 323. The first guide surface 311 and the third guide surface 323 are in contact with each other, so that there is sufficient clearance space on the outer side of the contact portion between the first row of plates 31 and the second row of plates 32, which facilitates the rotation of the lock cylinder 20 during unlocking.

[0041] The elastic element 40 is disposed in the first mounting groove 102 and the second mounting groove 103 and causes the corresponding sheet assembly 30 to move toward the lock hole. In this embodiment, both ends of the elastic element 40 abut against the side wall of the corresponding limiting plate 11 and the sheet assembly 30, respectively. The detachable limiting plate 11 facilitates the installation process of the sheet assembly 30 and the elastic element 40. One end of the elastic element 40 extends inward into the cavity 301 and abuts against the inner side wall of the cavity 301. During installation, the inner end of the elastic element 40 can be limited by the cavity 301, further facilitating the overall installation process. The elastic element 40 is a spring.

[0042] The key design feature of this invention is that, by having the extension directions of the first and second movable slots perpendicular to each other, and by setting up two sets of tile-laying components, each set is positioned in the corresponding first and second movable slots and moves back and forth along the extension directions of the first and second movable slots. This ensures that the movement directions of the two sets of tiles are located on the same plane, requiring force to be applied to the tile-laying components from different directions when unlocking with external tools. Furthermore, the two sets of tiles, with the first and second movable slots positioned close to each other, effectively compress the external unlocking space and the range of movement during unlocking, further increasing the difficulty of unlocking and improving anti-theft performance.

[0043] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A compact lock, characterized in that: The lock includes a lock case, a lock cylinder, a locking plate assembly, and an elastic element. The lock case has a mounting cavity, and a first mounting groove and a second mounting groove communicating with the mounting cavity are formed within the lock case. The lock cylinder is rotatably mounted in the mounting cavity and has a lock hole. The lock cylinder has a third mounting groove and a fourth mounting groove corresponding to the first and second mounting grooves, respectively. The first and third mounting grooves cooperate to form a first movable groove, and the second and fourth mounting grooves cooperate to form a second movable groove. The extension directions of the first and second movable grooves are perpendicular to each other, and the first and second movable grooves are positioned close to each other. The locking plate assembly consists of two sets, each set positioned in a corresponding first and second movable groove and moving back and forth along the extension directions of the first and second movable grooves. The inner end of the locking plate assembly extends inward into the lock hole. The elastic element is positioned in the first and second mounting grooves and causes the corresponding locking plate assembly to move towards the lock hole.

2. The compact lock according to claim 1, characterized in that: The outer wall of the lock housing is provided with a limiting groove that connects the outer ends of the first mounting groove and the second mounting groove. A detachable limiting plate is provided in the limiting groove. The two ends of the elastic member abut against the corresponding limiting plate sidewall and the plate assembly, respectively.

3. The compact lock according to claim 1, characterized in that: The inner wall of the lock hole is integrally provided with a limiting strip that protrudes outward, and the limiting strip is located close to the third mounting groove and the fourth mounting groove.

4. The compact lock according to claim 1, characterized in that: Each row assembly includes a first row and a second row of strips that are separately arranged. The first row of strips is located in a corresponding first mounting slot and a corresponding second mounting slot, and the second row of strips is located in a corresponding third mounting slot and a corresponding fourth mounting slot.

5. The compact lock according to claim 4, characterized in that: The first row of plates has a cavity with an outer opening, and one end of the elastic element extends inward into the cavity and abuts against the inner wall of the cavity.

6. The compact lock according to claim 4, characterized in that: The inner end openings of the third and fourth mounting slots are provided with a first limiting part protruding inward, and the upper end of the second row of plates is provided with a second limiting part that cooperates with the first limiting part.

7. The compact lock according to claim 4, characterized in that: The inner end of the second row of plates has a tapered first guide surface.

8. The compact lock according to claim 7, characterized in that: The lower end of the first row of plates is provided with a tapered second guide surface, and the upper end of the second row of plates is provided with an arc-shaped third guide surface, with the first guide surface and the third guide surface in contact with each other.

9. The compact lock according to claim 1, characterized in that: The elastic element is a spring.

10. The compact lock according to claim 1, characterized in that: The lock housing has a guide post, and the outer wall of the lock cylinder is recessed with a guide groove that is in the same direction of rotation as the lock cylinder and cooperates with the guide post. The guide post extends inward into the guide groove.

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