Narrow lock
By introducing a moving rod, limit block and adjustment pin into the narrow lock, the anti-locking problem caused by children's misoperation is solved, and the lock core is reliably locked and unlocked, improving the adaptability of the equipment.
Patent Information
- Application Number
- CN202421978794.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The existing narrow locks are prone to locking when operated by children, causing children to be trapped in the bathroom and cannot be unlocked externally, reducing the adaptability of the equipment.
A lock core structure with a moving rod, a limit block and a limit slot is designed. The limit block is inserted into the limit slot through the moving rod to lock, and the lock is unlocked by the moving seat and the slide groove, and the limit block position is adjusted by the adjustment pin to achieve reliable unlocking of the lock core.
Reliable locking and unlocking of the lock core is achieved, and the adaptability of the narrow lock is improved, and the trapping caused by misoperation of children is prevented.
Smart Images
Figure CN223075318U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of narrow locks, and particularly relates to a narrow lock. Background Art
[0002] The vast majority of narrow locks are installed on aluminum alloy door frames. The structural components of the lock include a lock core, a ball, a spring, a lock tongue, and a key.
[0003] The existing narrow lock can only be opened by a knob inside the door after being locked inside the door. Due to their young age and lack of life experience, children may lock themselves in the bathroom out of curiosity or improper operation, and adults outside cannot open the locked lock body, greatly reducing the adaptability of the device. Content of the Utility Model
[0004] The purpose of the utility model is to provide a narrow lock to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: a narrow lock, comprising: a lock body with a lock core, a driving member for rotating and driving the lock core to retract into the lock body is arranged in the lock body, a movable moving rod is arranged in the lock body, a limiting block inserted into the driving member is arranged at one end of the moving rod, a limiting groove for accommodating a limiting member is arranged on the driving member, and the limiting block is moved and inserted into the limiting groove when moving.
[0006] Preferably, a moving seat for moving the limiting block is further arranged at the end of the moving rod, a sliding groove is arranged on the moving seat along the moving direction of the moving rod, one end of the limiting block is movably installed in the sliding groove, and the limiting block is separated from the limiting groove when moving.
[0007] Preferably, an adjusting pin for driving the limiting block to move is further arranged on the moving seat, an adjusting groove extending to the outside of the lock body is arranged on the moving seat, and one end of the adjusting pin can be rotatably abutted in the adjusting groove.
[0008] Preferably, the driving member includes a rotatable first cam, the limiting groove is arranged at the tangent position on one side of the first cam close to the limiting member, and one end of the first cam extends into the lock core.
[0009] Preferably, the lock core is sequentially provided with a lock tongue body, a lock tongue bracket, and a lock tongue spring from outside to inside, a first dial block abutted on the lock tongue bracket is arranged on the first cam, and the first dial block drives the lock tongue bracket to retract into the lock body when rotating.
[0010] Preferably, a rotatable second cam is provided on a side of the lock body facing away from the first cam. A second dial block protrudes from a side of the second cam close to the moving rod. A card slot for accommodating the second dial block is formed on a side surface of an end of the moving rod. The second dial block drives the moving rod to perform linear reciprocating movement based on rotation.
[0011] Preferably, a through hole for the lock tongue spring to pass through is further formed on the moving rod.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] (1) Through the additionally provided moving rod, limiting block and limiting groove, when the moving rod moves, the limiting block is driven to insert into the limiting groove, so as to limit the driving member for driving the lock core to retract, and further the lock core can be locked.
[0014] (2) Through the additionally provided moving seat and sliding groove, when the lock core is locked and cannot be unlocked, the limiting block moves on the moving seat through the sliding groove, so that the limiting block disengages from the limiting groove, and at this time, the locking state of the limiting block on the driving member is released.
[0015] (3) Through the additionally provided adjusting pin, the limiting block can be locked on the moving seat through the adjusting pin. When the adjusting pin is loosened, the limiting block can be driven by the adjusting pin to move in the sliding groove, which is convenient for adjusting the position of the limiting block. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the first perspective view of the utility model;
[0017] Figure 2 is the first perspective view of the utility model;
[0018] Figure 3 is the partial exploded view of the utility model;
[0019] Figure 4 is the front view of the first cam, second cam, moving rod and limiting block of the utility model;
[0020] Figure 5 is Figure 4 the enlarged view at A in
[0021] In the figure: 1, lock body; 2, card slot; 3, moving rod; 4, limiting block; 5, adjusting groove; 6, moving seat; 7, limiting groove; 8, first cam; 9, lock tongue spring; 10, second cam; 11, lock tongue body; 12, adjusting pin; 13, lock tongue bracket; 14, through hole; 15, first dial block; 16, second dial block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.
[0023] Referring to Figures 1-4 as shown, a narrow lock provided by the present utility model includes: a lock body 1 with a lock core, a driving member for rotating and driving the lock core to retract into the lock body 1 is provided in the lock body 1, a movable moving rod 3 is provided in the lock body 1, a limiting block 4 is provided at one end of the moving rod 3 and inserted into the driving member, and a limiting groove 7 for accommodating a limiting member is provided on the driving member, and the limiting block 4 is moved and inserted into the limiting groove 7 when moving.
[0024] Combined with Figures 1-5 as shown, the driving member includes a rotatable first cam 8, the limiting groove 7 is opened at a tangent position on the side of the first cam 8 close to the limiting member, and one end of the first cam 8 extends into the lock core.
[0025] Combined with Figures 1-4 as shown, the lock core is sequentially provided with a lock tongue body 11, a lock tongue bracket 13 and a lock tongue spring 9 from outside to inside, a first dial block 15 abutting against the lock tongue bracket 13 is provided on the first cam 8, and the first dial block 15 drives the lock tongue bracket 13 to retract into the lock body 1 based on rotation.
[0026] In the above, when using the lock body 1, the lock core and the driving member provided by the present utility model, the driving member includes a first cam 8 and a first dial block 15, and a return spring connected to the first cam 8 is provided in the lock body 1, and the return spring is not marked in the figure. When the first cam 8 rotates and releases, the return spring can drive the first cam to automatically reset. The lock tongue body 11 in the lock core is restricted in the lock body 1 by a side plate (not marked in the figure). The lock tongue body 11 is automatically telescoped on the lock body 1 through the lock tongue spring 9, and at the same time, the lock tongue body 11 is always kept pushed out of the lock body 1 through the lock tongue spring 9. One end of the first dial block 15 abuts against the lock tongue bracket 13. When the first cam 8 rotates, the lock tongue bracket 13 can be driven to push inward through the first dial block 15, so as to drive the lock tongue body 11 into the interior of the lock body 1. After the lock tongue body 11 extends out of the lock body 1, move the moving rod 3 to make the limiting block 4 on the moving rod 3 inserted into the limiting groove 7 on the first cam 8. At this time, the first cam 8 cannot rotate, so as to lock the lock tongue body 11.
[0027] Further, in order to facilitate the linear drive of the moving rod 3, referring to Figure 4As described above, a rotatable second cam 10 is provided on the side of the lock body 1 away from the first cam 8. A second dial block 16 protrudes from the side of the second cam 10 close to the moving rod 3. A slot 2 for accommodating the second dial block 16 is formed on the side surface of the end of the moving rod 3. Rotation causes the second dial block 16 to drive the moving rod 3 to perform linear reciprocating movement. When the second cam 10 rotates, the moving rod 3 can be driven to perform linear reciprocating movement through the second dial block 16 and the slot 2. When the moving rod 3 moves towards the side of the driving member, it is convenient to insert the limiting block 4 into the limiting slot 7, thereby locking the driving member. When the moving rod 3 moves towards the side away from the driving member, it is convenient to disengage the limiting block 4 from the limiting slot 7, thereby unlocking the driving member.
[0028] In the present utility model, in combination Figures 4-5 As shown, a moving seat 6 for the movement of the limiting block 4 is further provided at the end of the moving rod 3 in this embodiment. A sliding slot is formed on the moving seat 6 along the moving direction of the moving rod 3. One end of the limiting block 4 is movably installed in the sliding slot, and the movement causes the limiting block 4 to disengage from the limiting slot 7.
[0029] As described above, when using the moving seat 6 provided by the present utility model, the moving seat 6 can provide a moving installation position for the limiting block 4 at the end of the moving rod 3. The limiting block 4 can be position-adjusted on the moving seat 6 through the sliding slot. When the limiting block 4 is inserted into the limiting slot 7 and the driving member cannot be unlocked, the limiting block 4 is moved outward on the moving seat 6 through the sliding slot, so that the limiting block 4 disengages from the limiting slot 7, and at this time, the locking of the driving member by the limiting block 4 is released.
[0030] Furthermore, for the convenience of position adjustment of the limiting block 4, referring to Figures 4-5 As shown, an adjusting pin 12 for driving the limiting block 4 to move is further provided on the moving seat 6. An adjusting slot 5 extending to the outside of the lock body 1 is provided on the moving seat 6. One end of the adjusting pin 12 is rotatably abutted in the adjusting slot 5. When there is a convex edge protruding from the lock body 1 on the moving seat 6, the adjusting slot 5 is provided in the convex edge. At the same time, an opening for accommodating the convex edge is formed on the lock body 1, and the length of the opening is greater than the length of the convex edge, so that when the moving seat 6 moves, the convex edge and the lock body 1 will not interfere with its movement. When the adjusting pin 12 is tightened in the adjusting slot 5, the limiting block 4 is locked on the moving seat 6, and at this time, the limiting block 4 cannot be position-adjusted on the moving seat 6. When the adjusting pin 12 is loosened in the adjusting slot 5, the locking of the limiting block 4 is released, and the adjusting pin 12 can drive the limiting block 4 to perform position adjustment on the moving seat 6. The adjusting pin 12 is an internal hexagonal bolt.
[0031] Furthermore, to avoid interference of the moving rod 3 with the lock tongue spring 9, referring to Figures 2-3As shown, a through hole 14 is also formed in the moving rod 3 for the latch spring 9 to pass through. The latch spring 9 passes through the moving rod 3 through the through hole 14, so that when the moving rod 3 moves, the latch spring 9 will not interfere with the movement of the moving rod 3.
[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A narrow lock, characterized in that, include: A lock body (1) with a lock core, wherein the lock body (1) is provided with a driving member for rotating and driving the lock core to retract into the lock body (1), wherein a movable moving rod (3) is provided in the lock body (1), wherein one end of the moving rod (3) is provided with a limiting block (4) inserted into the driving member, and the driving member is provided with a limiting groove (7) for accommodating the limiting member, wherein the limiting block (4) is moved and inserted into the limiting groove (7) when moving.
2. The narrow lock according to claim 1, characterized in that: The end of the moving rod (3) is also provided with a moving seat (6) for moving the limit block (4); a sliding groove is provided on the moving seat (6) along the moving direction of the moving rod (3); one end of the limit block (4) is movably installed in the sliding groove, so that the limit block (4) is separated from the limit groove (7) when moving.
3. A narrow lock according to claim 2, characterized in that: The movable seat (6) is also provided with an adjusting pin (12) for driving the limit block (4) to move, and the movable seat (6) is provided with an adjusting slot (5) extending to the outside of the lock body (1), and one end of the adjusting pin (12) can be rotatably abutted in the adjusting slot (5).
4. A narrow lock according to claim 1, characterized in that: The driving member comprises a rotatable first cam (8), the limiting groove (7) is arranged at a tangential position of the first cam (8) close to one side of the limiting member, and one end of the first cam (8) extends into the lock core.
5. A narrow lock according to claim 4, characterized in that: The lock core is provided with a lock tongue body (11), a lock tongue bracket (13) and a lock tongue spring (9) in sequence from the outside to the inside; the first cam (8) is provided with a first shifting block (15) abutting against the lock tongue bracket (13); the first shifting block (15) drives the lock tongue bracket (13) to retract into the lock body (1) based on rotation.
6. A narrow lock according to claim 4, characterized in that: A rotatable second cam (10) is provided on the side of the lock body (1) facing away from the first cam (8); a second shift block (16) protrudes from the side of the second cam (10) close to the moving rod (3); a slot (2) for accommodating the second shift block (16) is provided on the side of the end of the moving rod (3); and the second shift block (16) drives the moving rod (3) to perform linear reciprocating movement based on rotation.
7. A narrow lock according to claim 5, characterized in that: The moving rod (3) is also provided with a through hole (14) for the locking tongue spring (9) to pass through.