Staggered anti-theft door
By installing curved strips on the door frame of the anti-theft door and embedded in grooves to form a bent gap, the problem that existing anti-theft doors are easily unlocked by cards is solved, and higher sealing and barrier effects are achieved, enhancing property safety.
Patent Information
- Application Number
- CN202421277481.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The existing anti-theft door is easily opened by the card through the squeeze locking tongue in the gap, affecting the security of the anti-theft.
A slit-slit anti-theft door is designed, by installing a curved bar plate on the door frame, the end of the bar plate is embedded in the groove of the door body to form a bent gap to prevent the card from passing.
Effectively prevent the card from unlocking the door lock through the gap, improve the sealing and barrier effect of the anti-theft door, and enhance the safety of the property.
Smart Images

Figure CN222976584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-theft doors, in particular to a staggered joint anti-theft door. Background Art
[0002] Anti-theft doors are commonly used door bodies, generally used in places such as hotels and personal living rooms. When the anti-theft door is closed, usually, there is an L-shaped gap between the door body and the door frame. A flat object can pass through the gap and touch the lock tongue of the lock on the door body. The bevel of the lock tongue of some inward-opening door locks slopes outward. Illegal persons may pass a card through the L-shaped gap to squeeze the lock tongue to unlock the anti-theft door, affecting the anti-theft safety and making it difficult to ensure people's property safety. Therefore, improvements are proposed. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a staggered joint anti-theft door to solve the problem that the inward-opening anti-theft door is easily unlocked by a card passing through the gap.
[0004] Based on the technical problems existing in the background art, the utility model proposes a staggered joint anti-theft door, which includes a door frame and a door body hinged to the door frame. A door lock is installed on the door body, a lock catch is installed on the door frame corresponding to the position of the door lock, a strip plate is installed on the door frame, the strip plate is bent along the door frame and the end points to the door body, and a groove is arranged on the door body. The end of the strip plate is embedded into the groove when the door body is closed.
[0005] Preferably, a notch is formed in the strip plate corresponding to the position of the lock catch, and the lock catch is located in the notch and fixed to the door frame by screws.
[0006] Preferably, a slot is arranged on the door frame, and the thickness of the slot is the same as the thickness of the strip plate.
[0007] Preferably, the length of the slot is greater than the length of the lock catch, and the width of the slot is greater than the width of the lock catch.
[0008] Preferably, the length of the strip plate is greater than the length of the lock catch.
[0009] Preferably, the strip plate is fixed to the door frame by screws.
[0010] Compared with the prior art, the staggered joint anti-theft door proposed by the utility model adopts the above technical solutions and achieves the following technical effects:
[0011] When the door body of the utility model is closed, by embedding the strip plate into the door body, the gap between the door body and the door frame is bent and blocked, preventing a card from unlocking the lock tongue of the door lock through the door gap, and being able to seal and block the door gap. Description of the Drawings
[0012] Figure 1 It is the top view of the door body and the door frame of the present utility model when they are closed.
[0013] Figure 2 It is the schematic diagram of the installation structure of the strip board of the present utility model.
[0014] In the figure: 1, door frame; 2, door body; 21, groove; 31, door lock; 32, lock catch; 4, strip board; 41, notch; 11, groove position. Specific embodiments
[0015] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0016] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or just means that the first feature has a lower horizontal height than the second feature.
[0017] Embodiment
[0018] Please refer to Figure 1 - Figure 2 , the present utility model provides a staggered joint anti-theft door, including a door frame 1 and a door body 2 hinged on the door frame 1. A door lock 31 is installed on the door body 2, and a lock catch 32 is installed on the door frame 1 corresponding to the position of the door lock 31. The edge of the door frame 1 fitting the door body 2 is L-shaped. A strip board 4 is installed between the door frame 1 and the door body 2. The cross-section of the strip board 4 is J-shaped. The strip board 4 is fixed to the door frame 1 by screws after being bent. After the strip board 4 is bent, its end bends towards the door body 2 and straddles the gap between the door frame 1 and the door body 2. A groove is provided on the door body 2. When the door body 2 is closed, the end of the strip board 4 will be embedded into the groove of the door body 2. At this time, the gap between the door body 2 and the door frame 1 can be blocked by the strip board 4.
[0019] Furthermore, the groove position 11 on the door body 2 is on the side of the door body 2 facing the outdoors.
[0020] In the specific implementation manner, refer to Figure 1 and Figure 2 . A notch 41 is formed in the strip-shaped plate 4 at the position corresponding to the lock catch 32 on the door frame 1. The size of the notch 41 is larger than the size of the lock catch 32 that can be installed on the door frame 1, which can cope with the installation of lock catches 32 of different sizes. When improving the aesthetics, the lock catch 32 and the strip-shaped plate 4 can also be integrally installed.
[0021] In the specific implementation manner, refer to Figure 1 and Figure 2 . A slot 11 for installing the strip-shaped plate 4 is formed on the door frame 1. The depth of the slot 11 is the same as the thickness of the strip-shaped plate 4. When the strip-shaped plate 4 is installed in the slot 11, the strip-shaped plate 4 can be prevented from protruding on the door frame 1. The strip-shaped plate 4 can be installed on the door frame 1 by means of screws.
[0022] In a further implementation manner, the strip-shaped plate 4 can also be integrally die-cast with the door frame 1.
[0023] In the specific implementation manner, refer to Figure 1 and Figure 2 . The length of the strip-shaped plate 4 is greater than the length of the lock catch 32.
[0024] The above is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A staggered anti-theft door, comprising a door frame (1) and a door body (2) hinged to the door frame (1), characterized in that: The door body (2) is provided with a door lock (31), the door frame (1) is provided with a lock catch (32) at a position corresponding to the door lock (31), the door frame (1) is provided with a strip plate (4), the strip plate (4) is bent along the door frame (1) and the end thereof points toward the door body (2), a groove (21) is provided on the door body (2), and the end of the strip plate (4) is embedded in the groove (21) when the door body (2) is closed.
2. The staggered anti-theft door according to claim 1, characterized in that: The strip plate (4) is provided with a notch (41) at a position corresponding to the lock buckle (32); the lock buckle (32) is located in the notch (41) and is fixed to the door frame (1) by means of screws.
3. The staggered anti-theft door according to claim 1, characterized in that: The door frame (1) is provided with a slot (11), and the thickness of the slot (11) is the same as the thickness of the strip plate (4).
4. The staggered anti-theft door according to claim 3, characterized in that: The length of the slot (11) is greater than the length of the lock buckle (32), and the width of the slot (11) is greater than the width of the lock buckle (32).
5. The staggered anti-theft door according to claim 1, characterized in that: The length of the strip plate (4) is greater than the length of the lock buckle (32).
6. The staggered anti-theft door according to claim 1, characterized in that: The strip plate (4) is fixed to the door frame (1) by means of screws.