Anti-prying spring bolt reinforcing structure of intelligent door lock
By designing a limiting block and sliding bar structure on the lock tongue of the smart door lock, the problem of insufficient security performance of existing smart door locks is solved, and higher security is achieved, preventing cards or wires from prying the lock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZOREBIT SCI & TECH DEV CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing smart locks have poor security when pried open by criminals using cards or wires.
An anti-pry lock tongue structure was designed, including a lock tongue, a limiting block, a sliding rod, a round block, and a spring. Through the cooperation of rectangular grooves and sliding holes, the movement of cards or wires is restricted, preventing the lock tongue from being pried open.
It effectively prevents criminals from using cards or wires to pry open the lock tongue, thus improving the security performance of smart door locks.
Smart Images
Figure CN224213940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smart door lock technology, specifically to a reinforced anti-pry lock tongue structure for a smart door lock. Background Technology
[0002] With the advancement of science and technology, people's demand for smart technology is increasing, giving rise to a series of smart home products to help people live more conveniently. Smart door locks are locks that are improved upon traditional mechanical locks, offering greater intelligence and convenience in terms of user security, identification, and management. Smart door locks are the locking actuators in access control systems. As an important component of modern home security, smart door locks not only provide convenient usage methods, such as fingerprint and facial recognition unlocking, but also bring a high-end intelligent experience and thoughtful security features, such as visual doorbells and door lock alarms.
[0003] In existing technologies, if unscrupulous individuals attempt to pry open a lock, they can use cards or wires to embed into the door gap and try to push the bolt by squeezing the curved surface, thereby prying open the lock. This results in poor security performance. Therefore, we have introduced an anti-pry bolt reinforcement structure for smart locks. Utility Model Content
[0004] The purpose of this utility model is to provide an anti-pry lock tongue reinforcement structure for a smart door lock, which can prevent unauthorized personnel from prying open the lock tongue with cards or wires, thereby improving security performance and solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A pry-resistant lock tongue reinforcement structure for a smart door lock includes a smart door lock body. A movable lock tongue is provided on the side wall of the smart door lock body. An arc-shaped surface is provided on one side of the lock tongue. Multiple evenly distributed rectangular grooves are provided on the upper and lower edges of the arc-shaped surface. An opening is provided on the side of the rectangular groove near the arc-shaped surface. A limit block is slidably arranged in the rectangular groove. A cavity is provided inside the limit block. A sliding hole is provided on the cavity wall on the side away from the arc-shaped surface. A reinforcement mechanism is provided between the sliding hole and the rectangular groove to reset the limit block.
[0007] As a further embodiment of this utility model, the reinforcement mechanism includes a slide rod, which is slidably disposed in a slide hole. Both ends of the slide rod extend to the outside of the slide hole. One end of the slide rod located outside the cavity is fixedly connected to a rectangular groove. A circular block is fixedly disposed at one end of the slide rod located inside the cavity. A spring is fixedly disposed on the side of the circular block away from the slide rod.
[0008] As a further embodiment of this invention, the diameter of the circular block is larger than the diameter of the spring.
[0009] As a further embodiment of this invention, the spring is always in a compressed state.
[0010] As a further embodiment of this invention, a protrusion is provided in the middle of the arc-shaped surface.
[0011] As a further embodiment of this invention, the protrusion is configured as an arc shape.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The anti-pry bolt reinforcement structure of this smart door lock consists of a smart door lock body, bolt, limit block, protrusion, rectangular groove, arc surface, slide bar, round block, cavity, and spring. When an unauthorized person uses a card or wire to embed into the door gap and attempts to push the bolt by squeezing the arc surface, the edge of the card or the wire will hook into the rectangular groove and push the limit block. The limit block causes the sliding hole to slide on the slide bar, and the slide bar squeezes the spring through the round block. Because the rectangular groove limits the edge of the card and the wire, it can prevent unauthorized persons from prying open the bolt with a card or wire, thus improving security. When the prying stops, the spring pushes the cavity and causes the limit block to slide and reset. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of an anti-pry lock tongue reinforcement structure for a smart door lock.
[0015] Figure 2 This is a side view schematic diagram of an anti-pry lock tongue reinforcement structure for a smart door lock.
[0016] Figure 3 This is a top view of the locking tongue structure.
[0017] Figure 4 for Figure 2 An enlarged schematic diagram of part A in the middle.
[0018] Figure 5 for Figure 3 An enlarged schematic diagram of part B in the middle section.
[0019] In the diagram: 1. Smart door lock body; 2. Lock tongue; 3. Limiting block; 4. Protrusion; 5. Rectangular groove; 6. Arc-shaped surface; 7. Slide bar; 8. Round block; 9. Cavity; 10. Spring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1 to 5 This utility model provides a technical solution:
[0022] A pry-resistant lock tongue reinforcement structure for a smart door lock includes a smart door lock body 1. A movable lock tongue 2 is provided on the side wall of the smart door lock body 1. An arc-shaped surface 6 is provided on one side of the lock tongue 2. Multiple evenly distributed rectangular grooves 5 are provided on the upper and lower edges of the arc-shaped surface 6. An opening is provided on the side of the rectangular groove 5 near the arc-shaped surface 6. A limit block 3 is slidably provided in the rectangular groove 5. A cavity 9 is provided inside the limit block 3. A sliding hole is provided on the cavity wall of the cavity 9 away from the arc-shaped surface. A reinforcement mechanism is provided between the sliding hole and the rectangular groove 5 to reset the limit block 3.
[0023] Reference Figure 5 The reinforcement mechanism includes a slide rod 7, which is slidably disposed in the slide hole. Both ends of the slide rod 7 extend to the outside of the slide hole. The end of the slide rod 7 located outside the cavity 9 is fixedly connected to the rectangular groove. A round block 8 is fixedly disposed at the end of the slide rod 7 located inside the cavity. A spring 10 is fixedly disposed on the side of the round block 8 away from the slide rod 7. The reinforcement mechanism can prevent unauthorized personnel from prying open the lock tongue 2 with cards or wires, thereby improving the security performance.
[0024] Reference Figure 5 The diameter of the circular block 8 is larger than the diameter of the spring 10. The spring 10 is always in a compressed state, and the limit block 3 can be reset by the spring 10.
[0025] Reference Figure 4 A protrusion 4 is provided in the middle of the arc-shaped surface 6. The protrusion 4 is arc-shaped. The arc-shaped protrusion 4 can ensure that the rectangular groove 5 will not be affected when the locking tongue 2 is in normal use.
[0026] In use, if unscrupulous individuals use cards or wires to embed into the door gap and attempt to push the latch 2 by squeezing the curved surface 6, the edge of the card or the wire will hook into the rectangular groove 5 and push the limiting block 3. The limiting block 3 causes the sliding hole to slide on the sliding rod 7. The sliding rod 7 squeezes the spring 10 through the round block 8. Because the rectangular groove 5 limits the edge of the card and the wire, it can prevent unscrupulous individuals from using cards or wires to pry open the latch 2, thus improving the security performance. When the prying stops, the spring 10 pushes the cavity 9 and causes the limiting block 3 to slide and reset.
[0027] 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 pry-resistant lock tongue reinforcement structure for a smart door lock, comprising a smart door lock body (1), characterized in that: The smart door lock body (1) has a movable latch (2) on its side wall. The latch (2) has an arc-shaped surface (6) on one side. Multiple evenly distributed rectangular grooves (5) are provided on the upper and lower edges of the arc-shaped surface (6). The rectangular groove (5) has an opening on the side close to the arc-shaped surface (6). A limit block (3) is slidably arranged in the rectangular groove (5). A cavity (9) is provided inside the limit block (3). A sliding hole is provided on the cavity wall of the cavity (9) away from the arc-shaped surface. A reinforcing mechanism is provided between the sliding hole and the rectangular groove (5) to reset the limit block (3).
2. The anti-pry lock tongue reinforcement structure of a smart door lock according to claim 1, characterized in that: The reinforcement mechanism includes a slide rod (7), which is slidably disposed in a sliding hole. Both ends of the slide rod (7) extend to the outside of the sliding hole. One end of the slide rod (7) located outside the cavity (9) is fixedly connected to a rectangular groove. A round block (8) is fixedly disposed at one end of the slide rod (7) located inside the cavity. A spring (10) is fixedly disposed on the side of the round block (8) away from the slide rod (7).
3. The anti-pry lock tongue reinforcement structure of a smart door lock according to claim 2, characterized in that: The diameter of the circular block (8) is larger than the diameter of the spring (10).
4. The anti-pry lock tongue reinforcement structure of a smart door lock according to claim 2, characterized in that: The spring (10) is always in a compressed state.
5. The anti-pry lock tongue reinforcement structure of a smart door lock according to claim 1, characterized in that: A protrusion (4) is provided in the middle of the arc-shaped surface (6).
6. The anti-pry lock tongue reinforcement structure of a smart door lock according to claim 5, characterized in that: The protrusion (4) is set to be arc-shaped.