Anti-theft door with lock body structure convenient to install

Through the lock body installation system with lifting and lowering adjustment block and spring structure, the problems of complex lock body replacement and insufficient safety are solved, and convenient replacement and high-security anti-theft door lock body design are achieved.

CN223089211UActive Publication Date: 2025-07-11YANGCHENG COUNTY TAIYUE DOOR IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422031779.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-07-11
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

The existing anti-theft door needs to be replaced with a new door frame or matched with the lock body when the lock body is damaged, resulting in complex installation and waste of materials. At the same time, the lock tongue structure is easily pried open, which is insufficient safety.

Method used

A lock body installation system with lifting adjustment block and spring structure is designed to allow the installation of different lock bodies and enhance the locking effect through special-shaped lock tongues and spring mechanisms.

Benefits of technology

It realizes the convenience of lock body replacement, avoids waste of materials, improves the safety of the anti-theft door, and prevents illegal opening.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223089211U_ABST
    Figure CN223089211U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of anti-theft doors, and discloses an anti-theft door with a lock body structure convenient to install, which comprises a door frame and a movable door installed on one side of the door frame, a square groove is formed in the center of one side of the movable door, and a plurality of bottom springs are arranged at the bottom of the square groove. A plurality of bottom springs are arranged on the inner side of the square groove, a bottom cushion plate is installed at the upper ends of the bottom springs, a plurality of side springs are arranged on the inner side of the square groove, a side cushion plate is installed at one end of each side spring, and a sliding groove is formed in the position, close to the upper end of the bottom cushion plate, of the inner side of the square groove. The problem that when the anti-theft door lock body is damaged and needs to be replaced, the original lock body can be replaced and installed without replacing a new door frame or purchasing a corresponding matched lock body is solved, meanwhile, by arranging the special-shaped groove, the problem that when people are at home or forget to lock the door when going out, the lock body cannot be replaced and installed is solved. A thief can prize the door lock into a house to steal outside the door without a card.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of anti-theft doors, and particularly relates to an anti-theft door with a lock body structure convenient for installation. Background Art

[0002] Anti-theft doors are generally made of materials such as steel, steel-wood structure, stainless steel, aluminum alloy, and copper. Its main function is to serve as a protective tool for family members to enter and exit the house and for anti-theft, fire prevention, heat insulation, sound insulation, and other safety protection of the house.

[0003] During the installation process of an anti-theft door with a lock body structure convenient for installation, it is necessary to first inlay the door frame in the door frame of the house to be installed, fix the door frame in the door frame of the house through anchor screws, then install the anti-theft door in the door frame, and finally install the lock body structure on the inner side of the anti-theft door to complete the entire installation process of the anti-theft door.

[0004] However, during the installation process of the existing anti-theft doors with a lock body structure convenient for installation, since different anti-theft door lock body grooves and door frame buckle boxes can only install the corresponding matching lock bodies, when the lock body is damaged, it is only possible to replace the original lock body by replacing the new door frame or purchasing the corresponding matching lock body, resulting in a complex lock body replacement procedure and easy waste of materials. At the same time, during the use process of the existing anti-theft doors with a lock body structure convenient for installation, due to the simple structure of the lock tongue, the door lock can be pried open by a card outside the door. Therefore, when people are at home or forget to lock the door when going out, thieves can enter the house at will to steal, resulting in losses to the property of the house owner and affecting the safety protection performance of the anti-theft door. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a solution. When the anti-theft door lock body needs to be replaced, it is not necessary to replace the new door frame or purchase the corresponding matching lock body to replace the original lock body, avoiding the complex lock body replacement procedure and easy waste of materials. When people are at home or forget to lock the door when going out, thieves cannot pry open the door lock with a card outside the door to enter the house to steal, avoiding the situation of losses to the property of the house owner. At the same time, the safety protection performance of the anti-theft door is improved.

[0006] To achieve the above object, the present utility model provides the following technical solution: an anti-theft door with a lock body structure convenient for installation, including a door frame and a movable door installed on one side of the door frame. A square groove is opened at the center of one side of the movable door. It is characterized in that: a plurality of bottom springs are arranged at the bottom of the square groove, a bottom cushion plate is installed at the upper end of the bottom spring, and a plurality of side springs are arranged inside the square groove. One end of the side spring is installed with a side cushion plate, and a sliding groove is opened near the upper end of the bottom cushion plate inside the square groove. A clamping slider is installed inside the sliding groove, and a lifting adjustment block is arranged at the bottom of the clamping slider. A square concave hole communicating with the sliding groove is arranged on one side of the movable door, and a sliding block fixedly installed with the clamping slider is arranged inside the square concave hole. A threaded fixing bolt that presses against the clamping slider is arranged on one side of the movable door;

[0007] One end of the square groove is provided with an inner rotating handle, and one end of the inner rotating handle is provided with a square lock body.

[0008] Preferably, a special-shaped lock tongue is arranged on one side of the square lock body, and a special-shaped groove is opened inside the special-shaped lock tongue. A lifting spring is arranged at the center of the inside of the special-shaped groove, and a clamping plate is arranged on one side of the lifting spring.

[0009] Preferably, a concave connecting block is installed on one side of the special-shaped lock tongue, and a telescopic spring is arranged on one side of the concave connecting block. A square frame is arranged on one side of the telescopic spring.

[0010] Preferably, a lower convex lock block is installed at one end of the clamping plate, and an upper convex lock block is installed at the other end of the clamping plate. A movable spring is installed on the inner side wall of the concave connecting block close to the clamping plate.

[0011] Preferably, an outer rotating handle is arranged at one end of the square lock body, a buckle plate is arranged on one side of the square lock body, and a buckle box is arranged on one side of the buckle plate.

[0012] Compared with the prior art, the present utility model provides a printing device for high-permeability green barcodes, and has the following beneficial effects:

[0013] 1. When a security door with a conveniently installed lock body structure needs to have its lock body replaced, there is a lifting adjustment block, and a sliding block is provided on one side of the lifting adjustment block. By adjusting the sliding block up and down, the lifting adjustment block can move up and down in the clamping slider inside the sliding groove. When the lifting adjustment block is adjusted to the required position, the lifting adjustment block is limited and fixed by a threaded fixing bolt. At the same time, a bottom cushion plate and a side cushion plate are also provided inside the square groove, so that when the square lock body is placed in the bottom cushion plate and the side cushion plate, it can be further positioned and clamped by the bottom spring and the side spring provided, thereby enabling the installation of square lock bodies of different sizes, avoiding the situation where a new door frame needs to be replaced or a corresponding matching lock body needs to be purchased to replace the original lock body, and at the same time avoiding the situation where the procedure for replacing the lock body is complex and prone to material waste;

[0014] 2. There is a special-shaped groove, and a lifting spring is also provided inside the special-shaped groove. By clamping the lifting spring with a clamping plate, the upper convex lock block and the lower convex lock block can complete lifting activities inside the special-shaped groove, and a square core is also provided inside the inner rotating handle. Thus, when the inner rotating handle is rotated, the square core is inserted into the square frame, so that while the telescopic spring drives the concave connecting block and the special-shaped lock tongue to perform telescopic activities, the upper convex lock block and the lower convex lock block also perform up and down activities synchronously for locking, avoiding the situation where thieves can pry open the door lock with a card outside the door and enter the house to steal, also avoiding the situation where the property of the house owner is damaged, and at the same time improving the safety protection performance of the security door. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Schematic diagram of the overall structure of the present invention;

[0017] Figure 2 Schematic sectional view of the movable door of the overall structure of the present invention;

[0018] Figure 3 Schematic diagram of the split structure of the parts of the lock body mechanism of the present invention;

[0019] Figure 4 Schematic diagram of the overall structure of the special-shaped lock tongue of the present invention;

[0020] Figure 5 Schematic sectional view of the special-shaped lock tongue of the present invention.

[0021] The reference numerals in the figure respectively represent: 1, door frame; 2, movable door; 3, square groove; 4, bottom spring; 5, bottom backing plate; 6, side spring; 7, side backing plate; 8, sliding groove; 9, clamping slider; 10, lifting adjustment block; 11, square concave hole; 12, sliding block; 13, threaded fixing bolt; 14, inner rotating handle; 15, square lock body; 16, special-shaped lock tongue; 17, special-shaped groove; 18, concave connecting block; 19, telescopic spring; 20, square frame; 21, lifting spring; 22, clamping plate; 23, lower convex lock block; 24, upper convex lock block; 25, movable spring; 26, outer rotating handle; 27, buckle plate; 28, buckle box. Specific embodiments

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model will be further described below with reference to the embodiments. Embodiment 1

[0024] Referring to Figures 1-4 , which is the first embodiment of the present utility model, a security door with a lock body structure convenient for installation is provided, including a door frame 1 and a movable door 2 installed on one side of the door frame 1. A square groove 3 is opened at the center of one side of the movable door 2. A plurality of bottom springs 4 are arranged at the bottom of the square groove 3. A bottom backing plate 5 is installed at the upper end of the bottom springs 4. A plurality of side springs 6 are arranged inside the square groove 3. One end of the side springs 6 is installed with a side backing plate 7. A sliding groove 8 is opened near the upper end of the bottom backing plate 5 inside the square groove 3. A clamping slider 9 is installed inside the sliding groove 8. An lifting adjustment block 10 is arranged at the bottom of the clamping slider 9;

[0025] A square concave hole 11 communicating with the sliding groove 8 is arranged on one side of the movable door 2. A sliding block 12 fixedly installed with the clamping slider 9 is arranged inside the square concave hole 11. A threaded fixing bolt 13 that presses against the clamping slider 9 is arranged on one side of the movable door 2. An inner rotating handle 14 is arranged at one end of the square groove 3. A square lock body 15 is arranged at one end of the inner rotating handle 14. An outer rotating handle 26 is arranged at one end of the square lock body 15. A buckle plate 27 is arranged on one side of the square lock body 15. A buckle box 28 is arranged on one side of the buckle plate 27.

[0026] When the anti-theft door with a lock body structure that is convenient to install needs to replace the lock body, by setting a lifting adjustment block 10, and a sliding block 12 is arranged on one side of the lifting adjustment block 10. By adjusting the sliding block 12 up and down, the lifting adjustment block 10 can move up and down in the clamping slider 9 inside the sliding groove 8. According to the size of the square lock body 15 to be replaced, the up and down amplitude of the lifting adjustment block 10 is adjusted. When the lifting adjustment block 10 is adjusted to the required position, the lifting adjustment block 10 is limited and fixed by the threaded fixing bolt 13. At the same time, a bottom cushion plate 5 and a side cushion plate 7 are also arranged inside the square groove 3. When the square lock body 15 is placed in the bottom cushion plate 5 and the side cushion plate 7, it can be further positioned and clamped by the bottom spring 4 and the side spring 6 arranged thereon. Thus, square lock bodies 15 of different sizes can be installed, and the function of facilitating the installation of the lock body structure is achieved. It avoids the situation that a new door frame 1 needs to be replaced or a corresponding matching lock body needs to be purchased to replace and install the original lock body. At the same time, it also avoids the situation that the lock body replacement procedure is complex and easy to cause waste of materials. Embodiment 2

[0027] Referring to Figures 1-4 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a special-shaped lock tongue 16 is arranged on one side of the square lock body 15, and a special-shaped groove 17 is opened inside the special-shaped lock tongue 16. A lifting spring 21 is arranged at the center of the inner side of the special-shaped groove 17, and a clamping plate 22 is arranged on one side of the lifting spring 21. A concave connecting block 18 is installed on one side of the special-shaped lock tongue 16, and a telescopic spring 19 is arranged on one side of the concave connecting block 18. A square frame 20 is arranged on one side of the telescopic spring 19. One end of the clamping plate 22 is installed with a downward convex lock block 23, and the other end of the clamping plate 22 is installed with an upward convex lock block 24. A movable spring 25 is installed on the inner side wall of the concave connecting block 18 close to the clamping plate 22;

[0028] An irregular groove 17 is provided, and a lifting spring 21 is further provided inside the irregular groove 17. The lifting spring 21 is clamped by a clamping plate 22, so that the upper convex lock block 24 and the lower convex lock block 23 can complete lifting activities inside the irregular groove 17. A square core is also provided inside the inner rotating handle 14. Thus, when the inner rotating handle 14 is rotated, the square core is inserted into the square frame 20, and then the telescopic spring 19 can drive the concave connecting block 18 and the irregular lock tongue 16 to perform telescopic activities. Since the upper convex lock block 24 and the lower convex lock block 23 are arc-shaped, when the irregular lock tongue 16 performs telescopic activities, the upper convex lock block 24 and the lower convex lock block 23 will perform telescopic activities accordingly and then contact the buckle plate 27, causing the clamping plate 22 to squeeze the lifting spring 21 and further causing the movable spring 25 to perform telescopic activities. Thus, when the telescopic spring 19 drives the concave connecting block 18 and the irregular lock tongue 16 to perform telescopic activities, the upper convex lock block 24 and the lower convex lock block 23 will also perform synchronous up and down activities for locking, avoiding the situation that thieves can pry open the door lock with a card outside the door and enter the house to steal, and also avoiding the situation that the property of the house owner is damaged. At the same time, the safety protection performance of the anti-theft door is improved.

[0029] The remaining structures are the same as those in Embodiment 1.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-theft door with a lock body structure that is convenient for installation, comprising a door frame (1) and a movable door (2) installed on one side of the door frame (1). A square groove (3) is opened at the center of one side of the movable door (2), and it is characterized in that: A number of bottom springs (4) are arranged at the bottom of the square groove (3). The upper ends of the bottom springs (4) are provided with bottom backing plates (5). A number of side springs (6) are arranged inside the square groove (3). One end of each side spring (6) is provided with a side backing plate (7). A sliding groove (8) is formed at the upper end of the bottom backing plate (5) and close to the inner side of the square groove (3). A clamping slider (9) is installed inside the sliding groove (8). A lifting adjustment block (10) is arranged at the bottom of the clamping slider (9). A square concave hole (11) communicating with the sliding groove (8) is arranged on one side of the movable door (2). A sliding block (12) fixedly installed with the clamping slider (9) is arranged inside the square concave hole (11). A threaded fixing bolt (13) in extrusion contact with the clamping slider (9) is arranged on one side of the movable door (2).

2. The anti-theft door with a lock body structure convenient for installation according to claim 1, characterized in that: An inner rotating handle (14) is arranged at one end of the square groove (3). A square lock body (15) is arranged at one end of the inner rotating handle (14).

3. The anti-theft door with a lock body structure convenient for installation according to claim 2, characterized in that: A special-shaped lock tongue (16) is arranged on one side of the square lock body (15). A special-shaped groove (17) is formed inside the special-shaped lock tongue (16). A lifting spring (21) is arranged at the center of the inner side of the special-shaped groove (17). A clamping plate (22) is arranged on one side of the lifting spring (21).

4. The anti-theft door with a lock body structure convenient for installation according to claim 3, wherein: A concave connecting block (18) is installed on one side of the special-shaped lock tongue (16). A telescopic spring (19) is arranged on one side of the concave connecting block (18). A square frame (20) is arranged on one side of the telescopic spring (19).

5. The anti-theft door with a lock body structure convenient for installation according to claim 4, characterized in that: A lower convex lock block (23) is installed at one end of the clamping plate (22). An upper convex lock block (24) is installed at the other end of the clamping plate (22). A movable spring (25) is installed on the inner side wall of the concave connecting block (18) close to the clamping plate (22).

6. The anti-theft door with a lock body structure convenient for installation according to claim 2, characterized in that: An outer rotating handle (26) is arranged at one end of the square lock body (15). A buckle plate (27) is arranged on one side of the square lock body (15). A buckle box (28) is arranged on one side of the buckle plate (27).