A super pick-proof lock box
By using a combination of high-strength steel plates and lock cylinder guide sleeves on the lock box, the problem of weak protection of the lock under violent damage is solved, and multi-layer protection is achieved to prevent damage to the lock cylinder and internal components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JADESTONE IND & TRADE CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-23
Smart Images

Figure CN224396202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, specifically to an ultra-anti-pry lock box. Background Technology
[0002] There are many types of locks installed on door panels, including purely mechanical locks (with a lock cylinder hole), purely electronic locks (without a lock cylinder hole), and hybrid electromechanical locks. Regardless of the type, the core functional components (such as the lock cylinder, motor drive mechanism, and latches) are usually installed inside the door panel. Currently, there are two main methods for installing locks: one is to directly fix the lock body to the door panel by riveting or welding; the other is to install the lock into a frame-type lock box, and then install the entire lock box inside the door panel.
[0003] However, existing lock protection designs have significant shortcomings when facing forced unlocking:
[0004] 1. Weak overall protection: When the door panel is forcibly damaged by external force, the key components of the lock (lock cylinder, pull block, motor, etc.) are easily exposed. Attackers can directly apply force to these components (such as prying, impact, shearing) to move the lock tongue and unlock the door.
[0005] 2. High risk of lock cylinder exposure: For mechanical locks or two-in-one locks with a lock cylinder hole, the lock cylinder hole itself is a weak point. Attackers may be able to manipulate the bolt to retract and open the door by damaging the structure around the lock cylinder hole or by directly technically opening or drilling into the lock cylinder.
[0006] 3. Single protection of electronic locks: Although pure electronic locks without keyholes avoid the risk of the lock cylinder being attacked, their internal drive mechanism (motor, gears, levers) still needs to be robustly protected to prevent direct contact and damage after the door is damaged.
[0007] Therefore, we propose an ultra-anti-pry lock box to solve the problems mentioned above. Utility Model Content
[0008] The purpose of this utility model is to provide an ultra-anti-pry lock box to solve the problems mentioned in the background art.
[0009] To achieve the above objectives, the present invention provides the following technical solution: an ultra-anti-pry lock box, comprising: a door leaf and a lock, wherein the lock is installed on the frame of the door leaf, the lock comprising a lock box body and a right-angled edge steel plate, the right-angled edge steel plate completely covering the front surface of the lock box body, and one end of the right-angled edge steel plate is connected to the frame of the door leaf, wrapping the side of the lock box body close to the door leaf.
[0010] Preferably, the right-angled edge steel plate is made of high-strength steel plate.
[0011] Preferably, the lock box body is provided with a lock cylinder hole, and a lock cylinder guide sleeve is provided at the lock cylinder hole, with the lock cylinder guide sleeve engaging with the lock cylinder body.
[0012] Preferably, the lock cylinder guide sleeve includes a lock cylinder mating surface cover and a fixing cover. The lock cylinder mating surface cover is fixed to the anti-pry inner steel plate, the anti-pry inner steel plate covers the front surface of the lock cylinder body, and the fixing cover is fixedly sleeved on the surface of the lock cylinder mating surface cover.
[0013] Preferably, the fixed cover has a rotating anti-drill cover in the middle, and the rotating anti-drill cover has a key through hole in the middle.
[0014] Preferably, a keyhole is provided on the right-angled edge steel plate corresponding to the rotating anti-drill cover.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. Excellent overall anti-pry performance: The front surface of the lock box body is completely covered by a right-angled steel plate made of high-strength steel, which is tightly connected to the door frame and wraps around the side of the lock box body near the door. This structure forms a solid physical barrier after the door panel is damaged, effectively blocking the intrusion of external tools such as pry bars and chisels, and preventing attackers from directly contacting and damaging the core lock components inside the lock box body, such as the pull block, motor, and transmission mechanism.
[0017] 2. Multiple protections for the lock cylinder entrance: For locks with lock cylinder holes, an integrated lock cylinder guide sleeve is designed. This kit includes a fixed cover, a rotatable anti-drill cover, and a lock cylinder mating face cover. The rotatable anti-drill cover can effectively deflect the impact of the electric drill bit and prevent the lock cylinder from being damaged by drilling. The fixed cover and the anti-pry inner steel plate provide additional structural support and protection, greatly increasing the difficulty of violently damaging the lock cylinder body from the direction of the lock cylinder hole.
[0018] 3. Compatibility and adaptability: The right-angled edge steel plate structure provides core physical protection for pure electronic locks without keyholes. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a structural schematic diagram of the right-angled edge steel plate and the main body of the lock box in this utility model;
[0021] Figure 3 This is a disassembly diagram of the right-angled edge steel plate and the main body of the lock box in this utility model;
[0022] Figure 4 This is a disassembly diagram of the main body of the lock box in this utility model;
[0023] Figure 5 In this utility model Figure 4 Enlarged view of point A.
[0024] In the diagram: 1. Door leaf; 11. Frame; 2. Lock; 21. Right-angle edging steel plate; 211. Keyhole; 22. Lock box body; 221. Lock cylinder hole; 23. Lock cylinder guide sleeve; 231. Fixing cover; 232. Rotating anti-drill cover; 233. Lock cylinder mating face cover; 234. Lock cylinder body; 24. Anti-pry inner steel plate. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-5 This utility model provides a technical solution: an ultra-anti-pry lock box, including: a door leaf 1 and a lock 2. The lock 2 is installed on the frame 11 of the door leaf 1. The lock 2 includes a lock box body 22 and a right-angle edging steel plate 21. The right-angle edging steel plate 21 is made of high-strength steel plate. The right-angle edging steel plate 21 completely covers the front surface of the lock box body 22, and one end of the right-angle edging steel plate 21 is connected to the frame 11 of the door leaf 1, wrapping the side of the lock box body 22 close to the door leaf 1. After the external force breaks through the door leaf 1, it is blocked by the right-angle edging steel plate 21, preventing violent damage to the lock box body 22 and unlocking.
[0027] The main body 22 of the lock box has a lock cylinder hole 221. A lock cylinder guide sleeve 23 is provided at the lock cylinder hole 221. The lock cylinder guide sleeve 23 is connected to the lock cylinder body 234. The lock cylinder guide sleeve 23 plays the role of protecting the lock cylinder body 234 and preventing external forces from directly hitting the lock cylinder body 234 to forcefully unlock it.
[0028] The lock cylinder guide sleeve 23 includes a lock cylinder mating face cover 233 and a fixing cover 231. The lock cylinder mating face cover 233 is fixed on the anti-pry inner steel plate 24. The anti-pry inner steel plate 24 covers the front surface of the lock cylinder body 234. The anti-pry inner steel plate 24, together with the right-angle edge steel plate 21, achieves multi-layer protection and anti-pry function. The fixing cover 231 is fixedly sleeved on the surface of the lock cylinder mating face cover 233. A rotating anti-drill cover 232 is rotatably set in the middle of the fixing cover 231. A key through hole is opened in the middle of the rotating anti-drill cover 232. The cooperation between the rotating anti-drill cover 232 and the fixing cover 231 makes it difficult for destructive tools such as electric drills to access the lock cylinder body 234 and forcibly unlock it.
[0029] A keyhole 211 is provided on the right-angled edge steel plate 21 at the corresponding position of the rotating anti-drill cover 232 to enhance the protection of the rotating anti-drill cover 232.
[0030] Working principle: The right-angle edge steel plate 21 and the frame 11 of the door leaf 1 work together to partially enclose the lock 2, preventing the lock 2 from being directly damaged after the door leaf 1 is damaged;
[0031] A lock cylinder guide sleeve 23 is provided at the entrance of the lock cylinder body 234. The lock cylinder guide sleeve 23 is provided with a rotating anti-drill cover 232 and a fixed cover 231 to prevent tools such as electric drills from directly contacting the lock cylinder body 234 and forcibly unlocking it.
[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0033] 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 super anti-pry lock box, comprising: A door leaf (1) and a lock (2), wherein the lock (2) is installed at the frame (11) of the door leaf (1), characterized in that: the lock (2) includes a lock box body (22) and a right-angle edging steel plate (21), the right-angle edging steel plate (21) completely covers the front surface of the lock box body (22), and one end of the right-angle edging steel plate (21) is connected to the frame (11) of the door leaf (1), wrapping the side of the lock box body (22) close to the door leaf (1).
2. The ultra-anti-pry lock box according to claim 1, characterized in that, The right-angle edging steel plate (21) is made of high-strength steel plate.
3. The ultra-anti-pry lock box according to claim 1, characterized in that, The lock box body (22) is provided with a lock cylinder hole (221), and a lock cylinder guide sleeve (23) is provided at the lock cylinder hole (221), and the lock cylinder guide sleeve (23) is connected to the lock cylinder body (234).
4. The ultra-anti-pry lock box according to claim 3, characterized in that, The lock cylinder guide sleeve (23) includes a lock cylinder mating face cover (233) and a fixing cover (231). The lock cylinder mating face cover (233) is fixed on the anti-pry inner steel plate (24). The anti-pry inner steel plate (24) covers the front surface of the lock cylinder body (234). The fixing cover (231) is fixedly sleeved on the surface of the lock cylinder mating face cover (233).
5. A super anti-pry lock box according to claim 4, characterized in that, The fixed cover (231) is rotatably provided with a rotating anti-drill cover (232) in the middle, and the rotating anti-drill cover (232) has a key through hole in the middle.
6. A super anti-pry lock box according to claim 1, characterized in that, A keyhole (211) is provided on the right-angled edge steel plate (21) at the location corresponding to the rotating anti-drill cover (232).