Multi-stage spring bolt anti-theft lock cylinder module and plane lock
By designing a multi-stage lock tongue anti-theft lock core module in a planar lock, the sliding cooperation of the main lock tongue and the secondary lock tongue is solved, and the safety performance of the existing flat lock tongue is significantly improved.
Patent Information
- Application Number
- CN202421459567.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The lock tongue of existing flat locks is only one level, which is easily broken when prying under external force, resulting in poor anti-theft and prying effects and low safety.
A multi-stage lock tongue anti-theft lock core module is designed, including the main lock tongue and the secondary lock tongue. The main lock tongue and the secondary lock tongue extend out or contract simultaneously through the sliding cooperation of the chute and the bump. When locking, the main lock tongue and the secondary lock tongue are stuck at the base at the same time to enhance the strength of the lock tongue.
Through the design of the multi-stage lock tongue, the strength of the lock tongue is significantly increased, avoiding the lock tongue being broken when pried under external force, and improving the safety performance of the lock.
Smart Images
Figure CN223018371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to a multi-stage lock tongue anti-theft lock core module and a flat lock. Background Art
[0002] A flat lock is a common type of door lock. Through an embedded structure design, the lock body and the door surface are integrated to achieve better security and aesthetics. Flat locks are widely used. They can not only be used on the doors of homes, offices, stores, etc. as the main door locks to provide basic security and protection, but also be used on furniture such as drawers and cabinets, and on some windows, especially sliding windows or sliding sash windows, as window locks to provide additional security. In addition, flat locks are also widely used in the locking devices of indoor and outdoor cabinet equipment, such as industrial cabinet locks, equipment cabinets, power distribution cabinets, communication cabinet locks, etc. Through multi-point locking, simple, efficient and economical enhanced protection measures are realized, making the entire locking system more secure and reliable.
[0003] Currently, generally existing flat locks only have a single lock tongue that catches the base. When an external force pries the gap between the handle and the base, the lock tongue may directly break under the force, and its anti-theft and anti-prying effects are poor, resulting in low security. Summary of the Utility Model
[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a multi-stage lock tongue anti-theft lock core module and a flat lock.
[0005] The purpose of the utility model can be achieved by the following technical solutions: A multi-stage lock tongue anti-theft lock core module includes a lock tongue seat and a lock core seat arranged on one side of the lock tongue seat; a main lock tongue, slidably arranged in the lock tongue seat, a spring for resetting the main lock tongue is arranged in the lock tongue seat, and an inclined groove is opened on the main lock tongue; a secondary lock tongue, slidably arranged on the lock tongue seat, and a convex block slidably matched with the inclined groove is arranged on the secondary lock tongue; a lock core, installed on the lock core seat, an eccentric column is arranged at the end of the lock core, and a groove matched with the eccentric column is arranged on the main lock tongue.
[0006] Preferably, there are two secondary lock tongues arranged oppositely.
[0007] Preferably, the end faces of the main lock tongue and the secondary lock tongue are both provided with inclined surfaces.
[0008] Preferably, the inclined surface is in a circular arc structure.
[0009] Preferably, a convex platform is arranged on the lock tongue seat, and a clamping groove matched with the convex platform is arranged on the lock core seat.
[0010] Preferably, a limiting groove is opened on the main lock tongue, and a limiting column matched with the limiting groove is arranged on the lock tongue seat.
[0011] The present utility model also provides a flat lock, which includes a base, a handle fastened to the base, and a lock core module installed at one end of the handle. The lock core module is the above-mentioned multi-stage lock tongue anti-theft lock core module. One end of the base is provided with a lock cover, and lock grooves are provided on the inner side of the lock cover corresponding to the positions of the main lock tongue and the secondary lock tongue.
[0012] Preferably, the other end of the base is provided with a rotating shaft seat. A rotating shaft is rotatably arranged in the rotating shaft seat. A locking bolt is arranged at one end of the rotating shaft, and the other end of the rotating shaft is rotatably connected to the handle through a pin shaft.
[0013] Preferably, a torsion spring is arranged at the connection between the rotating shaft and the handle.
[0014] The beneficial effects of the present utility model are as follows: By arranging the main lock tongue and the secondary lock tongue on the lock tongue seat, when the main lock tongue extends or contracts, the secondary lock tongue is driven to extend or contract synchronously through the sliding fit between the convex block and the inclined groove. When locking the door, the main lock tongue and the secondary lock tongue simultaneously latch onto the base, greatly increasing the strength of the lock tongue and avoiding the lock tongue from breaking due to force, and providing higher safety performance. Description of the Drawings
[0015] The present utility model will be further described with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation to the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the following drawings.
[0016] Figure 1 It is a schematic structural diagram of a multi-stage lock tongue anti-theft lock core module of the present utility model.
[0017] Figure 2 It is a cross-sectional view of a multi-stage lock tongue anti-theft lock core module of the present utility model.
[0018] Figure 3 It is another view of a multi-stage lock tongue anti-theft lock core module of the present utility model.
[0019] Figure 4 It is a schematic structural diagram of the main lock tongue of a multi-stage lock tongue anti-theft lock core module of the present utility model.
[0020] Figure 5 It is a schematic structural diagram of the lock tongue seat and the lock core seat of a multi-stage lock tongue anti-theft lock core module of the present utility model.
[0021] Figure 6 It is a schematic structural diagram of a flat lock of the present utility model.
[0022] Figure 7 It is a cross-sectional view of a flat lock of the present utility model.
[0023] Figure 8 It is another cross-sectional view of a flat lock of the present utility model.
[0024] The reference numerals shown in the figure are as follows: 1, locking tongue seat; 101, main locking tongue; 102, spring; 103, inclined groove; 104, groove; 105, secondary locking tongue; 106, convex block; 107, inclined plane; 108, limiting groove; 109, limiting post; 110, boss; 2, lock core seat; 201, lock core; 202, eccentric post; 203, clamping groove; 3, base; 301, rotating shaft; 302, locking bolt; 303, handle; 304, lock groove; 305, torsion spring; 306, lock cover; 307, rotating shaft seat; 308, pin shaft. Detailed implementation manners
[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.
[0026] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.
[0027] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
[0028] Refer to Figures 1 to 8As shown in the figure, the structure of the present utility model is as follows: A multi-stage locking tongue anti-theft lock core module, including a locking tongue seat 1 and a lock core seat 2 provided on one side of the locking tongue seat 1; A main locking tongue 101, slidably arranged in the locking tongue seat 1, a spring 102 for resetting the main locking tongue 101 is provided in the locking tongue seat 1, and an inclined groove 103 is opened on the main locking tongue 101; A secondary locking tongue 105, slidably arranged on the locking tongue seat 1, and a convex block 106 slidably engaged with the inclined groove 103 is provided on the secondary locking tongue 105; A lock core 201, installed on the lock core seat 2, an eccentric column 202 is provided at the end of the lock core 201, and a groove 104 engaged with the eccentric column 202 is provided on the main locking tongue 101. Specifically, when unlocking, after inserting the key and turning the lock core 201, the main locking tongue 101 is toggled by the eccentric column 202 to contract and compress the spring 102. At the same time, when the main locking tongue 101 contracts, the secondary locking tongue 105 is driven to contract through the sliding cooperation of the convex block 106 and the inclined groove 103, so that the main locking tongue 101 and the secondary locking tongue 105 synchronously withdraw from the lock groove 304; When locking, turn the lock core 201 to contract the main locking tongue 101 and the secondary locking tongue 105 until they correspond to the lock groove 304, and under the action of the spring 102, the main locking tongue 101 and the secondary locking tongue 105 synchronously extend and snap into the corresponding lock groove 304.
[0029] There are two secondary locking tongues 105 arranged oppositely. Specifically, when the main locking tongue 101 extends or contracts, the two secondary locking tongues 105 are driven to extend or contract synchronously through the sliding cooperation of the convex block 106 and the inclined groove 103, increasing the strength of the locking tongue.
[0030] The end faces of the main locking tongue 101 and the secondary locking tongue 105 are both provided with inclined surfaces 107. Specifically, when locking, the main locking tongue 101 and the secondary locking tongue 105 are abutted against the side walls at the lock groove 304 through the inclined surfaces 107, forcing the main locking tongue 101 and the secondary locking tongue 105 to automatically contract until they correspond to the lock groove 304, and then under the action of the spring 102, the main locking tongue 101 and the secondary locking tongue 105 synchronously extend and snap into the corresponding lock groove 304.
[0031] The inclined surface 107 is in an arc-shaped structure. Specifically, when the arc-shaped inclined surface 107 slides, the contact area can be reduced, thereby reducing the friction force and making the extension and contraction of the main locking tongue 101 and the secondary locking tongue 105 more flexible.
[0032] The locking tongue seat 1 is provided with a convex platform 110, and the lock core seat 2 is provided with a card slot 203 engaged with the convex platform 110. Specifically, the locking tongue seat 1 and the lock core seat 2 are connected through the convex platform 110 and the card slot 203, which is convenient for assembly during production.
[0033] The present utility model further provides a flat lock, which includes a base 3, a handle 303 fastened to the base 3, and a lock core module installed at one end of the handle 303. The lock core module is the multi-stage lock tongue anti-theft lock core module described above. One end of the base 3 is provided with a lock cover 306. Lock grooves 304 are provided on the inner side of the lock cover 306 corresponding to the positions of the main lock tongue 101 and the secondary lock tongue 105. The other end of the base 3 is provided with a rotating shaft seat 307. A rotating shaft 301 is rotatably arranged in the rotating shaft seat 307. A locking bolt 302 is provided at one end of the rotating shaft 301. The other end of the rotating shaft 301 is rotatably connected to the handle 303 through a pin shaft 308. A torsion spring 305 is provided at the connection between the rotating shaft 301 and the handle 303. Specifically, when in use, when unlocking, insert the key and rotate the lock core 201. The main lock tongue 101 is toggled by the eccentric column 202 to contract and compress the spring 102. At the same time, when the main lock tongue 101 contracts, the secondary lock tongue 105 is driven to contract through the sliding fit between the convex block 106 and the inclined groove 103, so that the main lock tongue 101 and the secondary lock tongue 105 synchronously withdraw from the lock groove 304. Subsequently, the handle 303 pops out under the action of the torsion spring 305. Then rotate the handle 303, and drive the locking bolt 302 to rotate through the rotating shaft 301 to open the flat lock. When locking, rotate the handle 303, drive the locking bolt 302 to rotate through the rotating shaft 301 to lock the flat lock. Subsequently, press the handle 303. The main lock tongue 101 and the secondary lock tongue 105 abut against the side wall at the lock groove 304 through the inclined surface 107, forcing the main lock tongue 101 and the secondary lock tongue 105 to automatically contract until they correspond to the lock groove 304. Subsequently, under the action of the spring 102, the main lock tongue 101 and the secondary lock tongue 105 synchronously extend and snap into the corresponding lock grooves 304, so that the handle 303 is fastened to and locked with the base 3.
[0034] The above further describes the present utility model with the aid of specific embodiments. However, it should be understood that this specific description should not be construed as a limitation on the essence and scope of the present utility model. Various modifications made by those of ordinary skill in the art to the above embodiments after reading this specification all fall within the scope protected by the present utility model.
Claims
1. A multi-level lock tongue anti-theft lock core module, characterized in that: It comprises a lock tongue seat (1) and a lock cylinder seat (2); A main lock tongue (101) is slidably arranged in a lock tongue seat (1), wherein a spring (102) for resetting the main lock tongue (101) is arranged in the lock tongue seat (1), and an inclined groove (103) is provided on the main lock tongue (101); An auxiliary lock tongue (105) is slidably disposed on the lock tongue seat (1), and a protrusion (106) is provided on the auxiliary lock tongue (105) and is slidably matched with the inclined groove (103); A lock core (201) is mounted on a lock core seat (2); an eccentric column (202) is provided at the end of the lock core (201); and a groove (104) matching the eccentric column (202) is provided on the main lock tongue (101).
2. A multi-level lock tongue anti-theft lock core module according to claim 1, characterized in that: Two auxiliary locking tongues (105) are arranged opposite to each other.
3. The multi-level lock tongue anti-theft lock core module according to claim 1, characterized in that: The end surfaces of the main lock tongue (101) and the auxiliary lock tongue (105) are both provided with inclined surfaces (107).
4. A multi-stage deadbolt anti-theft lock core module according to claim 3, characterized in that: The inclined surface (107) is in an arc-shaped structure.
5. The multi-stage lock tongue anti-theft lock core module according to claim 1, characterized in that: The lock tongue seat (1) is provided with a boss (110), and the lock core seat (2) is provided with a slot (203) that cooperates with the boss (110).
6. The multi-stage lock tongue anti-theft lock core module according to claim 1, characterized in that: The main lock tongue (101) is provided with a limiting groove (108), and the lock tongue seat (1) is provided with a limiting column (109) that cooperates with the limiting groove (108).
7. A flat lock, characterized in that: The invention comprises a base (3), a handle (303) buckled with the base (3), and a lock core module installed at one end of the handle (303), wherein the lock core module is a multi-stage lock tongue anti-theft lock core module according to any one of claims 1 to 6, a lock cover (306) is provided at one end of the base (3), and lock grooves (304) are provided on the inner side of the lock cover (306) at positions corresponding to the main lock tongue (101) and the auxiliary lock tongue (105).
8. The flat lock according to claim 7, characterized in that: A rotating shaft seat (307) is provided at the other end of the base (3), a rotating shaft (301) is rotatably provided in the rotating shaft seat (307), a locking bolt (302) is provided at one end of the rotating shaft (301), and the other end of the rotating shaft (301) is rotatably connected to the handle (303) via a pin (308).
9. The flat lock according to claim 8, characterized in that: A torsion spring (305) is provided at the connection between the rotating shaft (301) and the handle (303).