A multi-directional linkage locking tongue anti-theft lock body
By designing a multi-directional linkage lock tongue structure, the problems of high friction and inconvenience in disassembling traditional lock bodies are solved, enabling convenient disassembly and lubrication to reduce friction, thereby improving the stability and service life of the lock body.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN KERUIQI SCI & TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional lock bodies generate significant friction during operation, affecting their ability to open and close smoothly. Their structural design makes them difficult to disassemble and maintain, and the internal springs are prone to fatigue, reducing stability.
It adopts a multi-directional linkage locking tongue structure, which includes the cooperation of a drive rod, a rectangular plate, a mounting handle, a limit bolt, and a fixing plate. The drive rod and the rectangular plate are rotated together, and the drive disc and the drive rack mesh together to achieve convenient disassembly and maintenance. The lubrication pipe reduces friction.
It improves the practicality and stability of the lock body, reduces friction, extends service life, and enhances the flexibility and ease of maintenance of the lock body.
Smart Images

Figure CN224432233U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-theft lock body technology, specifically an anti-theft lock body with a multi-directional linkage lock tongue. Background Technology
[0002] The lock body is an important component of a security door, primarily responsible for opening and closing the lock. The lock body is responsible for opening and locking the door and plays a crucial role in theft prevention. Lock bodies are commonly used in security doors to provide basic anti-theft protection. The lock body is operated by turning it to lock and unlock the door.
[0003] However, traditional lock bodies still have certain shortcomings in use:
[0004] 1. Traditional lock bodies generate significant friction during operation, which affects their ability to open and close smoothly. The structural design of traditional lock bodies also makes them difficult to disassemble and repair, as well as difficult to clean internally, further reducing their practicality.
[0005] 2. In addition, the springs inside the lock are prone to fatigue after prolonged use, which not only reduces the stability of the lock body but may also cause the door to fail to close properly. Utility Model Content
[0006] The purpose of this utility model is to provide an anti-theft lock body with a multi-directional linkage bolt, in order to solve the problems mentioned in the background art, that traditional lock bodies generate a large amount of friction during operation, which affects their flexible opening and closing. The structural design of traditional lock bodies makes them inconvenient to disassemble and repair, and also makes it difficult to clean the inside, further reducing their practicality. In addition, the springs inside the lock are prone to fatigue after long-term use, which not only reduces the stability of the lock body, but may also cause the door to fail to close properly.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A multi-directional linkage lock body includes a positioning base. A lock body assembly and a positioning component are respectively disposed on the top of the positioning base. The positioning component is located on the side of the lock body assembly. The lock body assembly includes a fixing plate on the top of the positioning base. A hole is formed on the side of the fixing plate, and a rectangular plate is disposed within the hole. A drive rod is disposed on the side of the rectangular plate, passing through the rectangular plate and extending to the other side of the rectangular plate. The drive rod is rotatably connected to the rectangular plate. A drive disc is fixedly connected to one end of the drive rod, and a mounting handle is fixedly connected to the other end of the drive rod. The mounting handle and the drive disc are positioned opposite each other.
[0009] As a preferred embodiment of this utility model, the positioning component includes a support plate on the top of the positioning base, the support plate being located on the side of the fixed plate, a guide groove being provided on the side of the support plate, an mounting plate being slidably connected in the guide groove, a drive rack being fixedly connected to the side of the mounting plate, the drive rack being opposite to the drive disc, and the drive disc engaging with the drive rack.
[0010] As a preferred embodiment of this utility model, the top of the positioning base is provided with a positioning hole, the positioning hole is opposite to the position of the mounting plate, and the mounting plate extends into the positioning hole and is inserted into the positioning hole.
[0011] As a preferred embodiment of this utility model, the side of the fixing plate is provided with a groove, the groove is connected to the hole, and a side plate is fixedly connected to the edge of the rectangular plate, the side plate extends into the groove and abuts against the groove.
[0012] As a preferred embodiment of this utility model, a limiting bolt is provided on the side of the side plate. The limiting bolt passes through the side plate and extends into the fixed plate. The limiting bolt is threadedly connected to the side plate.
[0013] As a preferred embodiment of this utility model, the support plate has a slot on its side, and a side guard plate is engaged in the slot. The side guard plate is located on the side of the mounting plate.
[0014] As a preferred embodiment of this utility model, the bottom of the positioning base is provided with a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod respectively penetrate the positioning base and extend into the fixing plate and the bearing plate respectively, and the first connecting rod and the second connecting rod are both threadedly connected to the positioning base.
[0015] As a preferred embodiment of this utility model, a lubrication tube is provided on the side of the fixing plate. One end of the lubrication tube passes through the fixing plate and extends into the guide groove. The lubrication tube is inserted into the fixing plate, and the other end of the lubrication tube is threadedly connected to an installation cap.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. In this utility model, by setting up a drive rod, a rectangular plate, a mounting handle, a hole, a limiting bolt, and a fixing plate for coordinated use, since the drive rod is rotatably connected to the rectangular plate, after turning the drive rod by the mounting handle, the drive plate will rotate and mesh with the drive rack, thus facilitating adjustment. The rectangular plate is located in the hole, and the side plate is fixed in the groove by the limiting bolt. After removing the limiting bolt, the fixing plate can be removed, thus facilitating internal maintenance or cleaning and improving practicality.
[0018] 2. In this utility model, by setting up a drive disc, a drive rack, a mounting handle, a mounting plate, and a positioning hole for coordinated use, the drive disc meshes with the drive rack. After turning the mounting handle, the drive rack slides the mounting plate, which then extends into the positioning hole. This facilitates adjustment and locking during operation, improving stability. At the same time, a side guard plate is provided in the slot to protect the drive rack and mounting plate, improving practicality. By injecting lubricating oil into the lubrication pipe, the drive disc and drive rack can be lubricated, reducing friction and increasing service life. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the side profile structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the lock body assembly structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the positioning component structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the bottom structure of this utility model.
[0024] In the diagram: 1. Positioning base; 2. Lock body assembly; 201. Fixing plate; 202. Hole; 203. Groove; 204. Drive rod; 205. Rectangular plate; 206. Side plate; 207. Limit bolt; 208. Drive disc; 3. Positioning assembly; 301. Bearing plate; 302. Guide groove; 303. Mounting plate; 304. Drive rack; 305. Slot; 306. Side guard plate; 307. Positioning hole; 4. Lubrication pipe; 5. Mounting cover; 6. Mounting handle; 7. First connecting rod; 8. Second connecting rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] For examples, please refer to Figures 1-5 This utility model provides a technical solution:
[0027] A multi-directional linkage lock body includes a positioning base 1. A lock body assembly 2 and a positioning component 3 are respectively disposed on the top of the positioning base 1. The positioning component 3 is located on the side of the lock body assembly 2. The lock body assembly 2 includes a fixing plate 201 on the top of the positioning base 1. A hole 202 is formed on the side of the fixing plate 201. A rectangular plate 205 is disposed within the hole 202. A drive rod 204 is disposed on the side of the rectangular plate 205. The drive rod 204 passes through the rectangular plate 205 and extends to the other side of the rectangular plate 205. The drive rod 204 is rotatably connected to the rectangular plate 205. One end of the drive rod 204 is fixedly connected to a drive disk 208, and the other end of the drive rod 204 is fixedly connected to an installation handle 6. The installation handle 6 and the drive disk 208 are positioned opposite each other. A groove 203 is provided on the side of the fixing plate 201. The groove 203 communicates with the hole 202. A side plate 206 is fixedly connected to the edge of the rectangular plate 205. The side plate 206 extends into the groove 203 and abuts against the groove 203. A limit bolt 207 is provided on the side of the side plate 206. The limit bolt 207 passes through the side plate 206 and extends into the fixing plate 201. The limit bolt 207 is threadedly connected to the side plate 206.
[0028] Meanwhile, the side plate 206 is fixed in the groove 203 by the limiting bolt 207. After the limiting bolt 207 is removed, the fixing plate 201 can be removed, which facilitates internal maintenance or cleaning and improves practicality.
[0029] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the positioning assembly 3 includes a support plate 301 on the top of the positioning base 1. The support plate 301 is located on the side of the fixed plate 201. A guide groove 302 is provided on the side of the support plate 301. A mounting plate 303 is slidably connected in the guide groove 302. A drive rack 304 is fixedly connected to the side of the mounting plate 303. The drive rack 304 is positioned opposite to the drive disk 208, and the drive disk 208 meshes with the drive rack 304. A positioning hole 307 is provided on the top of the positioning base 1. The positioning hole 307 is positioned opposite to the mounting plate 303. The mounting plate 303 extends into the positioning hole 307 and is inserted into the positioning hole 307. The support plate 301... A slot 305 is provided on the side, and a side guard plate 306 is engaged in the slot 305. The side guard plate 306 is located on the side of the mounting plate 303. A first connecting rod 7 and a second connecting rod 8 are respectively provided at the bottom of the positioning base 1. The first connecting rod 7 and the second connecting rod 8 pass through the positioning base 1 and extend into the fixing plate 201 and the bearing plate 301 respectively. The first connecting rod 7 and the second connecting rod 8 are both threadedly connected to the positioning base 1. A lubrication tube 4 is provided on the side of the fixing plate 201. One end of the lubrication tube 4 passes through the fixing plate 201 and extends into the guide groove 302. The lubrication tube 4 is inserted into the fixing plate 201. The other end of the lubrication tube 4 is threadedly connected to the mounting cover 5.
[0030] Since the drive disc 208 meshes with the drive rack 304, after the installation handle 6 is turned, the drive rack 304 slides the installation plate 303, and the installation plate 303 extends into the positioning hole 307, which facilitates adjustment and locking during operation and improves stability.
[0031] The working process of this utility model is as follows: When the anti-theft lock body using the multi-directional linkage lock tongue designed in this scheme is in operation, first check whether the device is working properly. During installation, the positioning base 1, fixing plate 201, and bearing plate 301 must always be in relative positions to facilitate locking. When locking is required, turn the installation handle 6. The installation handle 6 rotates the drive rod 204, and the drive rod 204 rotates the drive disc 208. Therefore, the drive disc 208 inserts the mounting plate 303 into the positioning hole 307, thereby locking it. The rectangular plate 205 is located in the hole 202, and the side plate 206 is fixed in the groove 203 by the limiting bolt 207. After removing the limiting bolt 207, the fixing plate 201 can be removed, thus... The internal maintenance and cleaning functions are improved, enhancing practicality. Since the drive plate 208 meshes with the drive rack 304, turning the mounting handle 6 causes the drive rack 304 to slide the mounting plate 303, which then extends into the positioning hole 307. This facilitates adjustment and locking during operation, improving stability. Simultaneously, a side guard plate 306 is provided in the slot 305 to prevent misalignment between the drive rack 304 and the mounting plate 303, further enhancing practicality. After removing the mounting cover 5, lubricating oil can be added to the guide groove 302 through the lubrication pipe 4 to lubricate the drive rack 304 and drive plate 208, preventing severe wear between them and improving work efficiency and service life.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-directional linkage lock body for anti-theft, comprising a positioning base (1), characterized in that: The top of the positioning base (1) is respectively provided with a lock body assembly (2) and a positioning assembly (3), and the positioning assembly (3) is located on the side of the lock body assembly (2); The lock body assembly (2) includes a fixing plate (201) on the top of the positioning base (1). The fixing plate (201) has a hole (202) on its side. A rectangular plate (205) is provided in the hole (202). A drive rod (204) is provided on the side of the rectangular plate (205). The drive rod (204) passes through the rectangular plate (205) and extends to the other side of the rectangular plate (205). The drive rod (204) is rotatably connected to the rectangular plate (205). A drive disc (208) is fixedly connected to one end of the drive rod (204). An installation handle (6) is fixedly connected to the other end of the drive rod (204). The installation handle (6) and the drive disc (208) are positioned opposite each other.
2. The anti-theft lock body with a multi-directional linkage bolt according to claim 1, characterized in that, The positioning component (3) includes a support plate (301) on the top of the positioning base (1). The support plate (301) is located on the side of the fixing plate (201). A guide groove (302) is provided on the side of the support plate (301). An installation plate (303) is slidably connected in the guide groove (302). A drive rack (304) is fixedly connected to the side of the installation plate (303). The drive rack (304) is opposite to the drive disk (208), and the drive disk (208) meshes with the drive rack (304).
3. The anti-theft lock body with a multi-directional linkage bolt according to claim 2, characterized in that, The top of the positioning base (1) is provided with a positioning hole (307), the positioning hole (307) is opposite to the mounting plate (303), and the mounting plate (303) extends into the positioning hole (307) and is inserted into the positioning hole (307).
4. The anti-theft lock body with a multi-directional linkage bolt according to claim 1, characterized in that, The side of the fixing plate (201) is provided with a groove (203), which communicates with the hole (202). A side plate (206) is fixedly connected to the edge of the rectangular plate (205), which extends into the groove (203) and abuts against the groove (203).
5. The anti-theft lock body with a multi-directional linkage bolt according to claim 4, characterized in that, The side of the side plate (206) is provided with a limiting bolt (207), the limiting bolt (207) passes through the side plate (206) and extends into the fixing plate (201), and the limiting bolt (207) is threadedly connected to the side plate (206).
6. The anti-theft lock body with a multi-directional linkage bolt according to claim 2, characterized in that, The support plate (301) has a slot (305) on its side, and a side guard plate (306) is engaged in the slot (305). The side guard plate (306) is located on the side of the mounting plate (303).
7. The anti-theft lock body with a multi-directional linkage bolt according to claim 1, characterized in that, The bottom of the positioning base (1) is provided with a first connecting rod (7) and a second connecting rod (8). The first connecting rod (7) and the second connecting rod (8) pass through the positioning base (1) and extend into the fixing plate (201) and the bearing plate (301) respectively. The first connecting rod (7) and the second connecting rod (8) are threadedly connected to the positioning base (1).
8. The anti-theft lock body with a multi-directional linkage bolt according to claim 1, characterized in that, A lubrication tube (4) is provided on the side of the fixing plate (201). One end of the lubrication tube (4) passes through the fixing plate (201) and extends into the guide groove (302). The lubrication tube (4) is inserted into the fixing plate (201), and the other end of the lubrication tube (4) is threadedly connected to an installation cap (5).