A multi-section anti-theft door lock structure with quick installation function

Abstract

This utility model relates to the field of multi-section anti-theft door lock technology, specifically a multi-section anti-theft door lock structure with quick installation function. It includes a rear baffle, a rear panel mounted on one side of the rear baffle, a protrusion fixedly connected to the inner wall of the rear panel, an clearance groove inside the rear baffle, and a positioning screw movably connected inside the rear baffle. A front panel is mounted on the other side of the rear baffle, and a stud is mounted on the outer wall of the front panel. This utility model installs the rear baffle on one side of the door panel and the front panel on the other side. The positioning screw passes through the rear baffle and aligns with one end of the stud. Rotating the positioning screw, due to the threaded connection between the positioning screw and the stud, allows the positioning screw to be inserted into the stud for positioning, thus allowing the rear baffle and front panel to be installed at the lock hole position on the door panel. This facilitates quick installation of the multi-section anti-theft door lock and improves assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of multi-section anti-theft door lock technology, and in particular to a multi-section anti-theft door lock structure with quick installation function. Background Technology

[0002] Multi-stage security door locks are door locks with multiple locking points and multi-stage locking functions. By increasing the number of locking points and locking stages, they can provide better anti-theft performance and stability than traditional single-stage door locks.

[0003] Existing technology, such as the door lock handle structure disclosed in application number CN218815739U, includes a handle body, which comprises a metal handle body and a plastic handle shell. The plastic handle shell includes a plastic cover and a plastic outer shell, with a cavity formed between the plastic outer shell and the plastic cover for installing the metal handle body. The door lock handle structure of this utility model installs the metal handle body through the cavity formed by the plastic cover and the plastic outer shell, eliminating the need for surface processing of the handle body, reducing production processes, saving costs, and improving production efficiency. Simultaneously, it effectively prevents corrosion, deterioration, discoloration, and metal oxidation of the handle body's surface layer, and is resistant to chemicals such as alcohol and disinfectants, making it suitable for applications in isolation centers, quarantine hotels, and other similar settings, demonstrating strong adaptability.

[0004] Therefore, while the aforementioned device can save on production costs, it makes it inconvenient to quickly install security door locks, resulting in time-consuming and labor-intensive on-site installation and affecting installation efficiency. Utility Model Content

[0005] To overcome the problem that common multi-section anti-theft door lock structures make quick installation of anti-theft door locks inconvenient.

[0006] The technical solution of this utility model is as follows: a multi-section anti-theft door lock structure with quick installation function, including a rear baffle, a rear panel installed on one side of the rear baffle, a protrusion fixedly connected to the inner wall of the rear panel, an clearance groove opened inside the rear baffle, a positioning screw movably connected inside the rear baffle, a front panel installed on the other side of the rear baffle, studs installed on the outer wall of the front panel, a front handle installed on the outer wall of the front panel, a sleeve block installed on the outer wall of the front panel, a lock tongue movably connected inside the sleeve block, a first screw installed inside the sleeve block, a zinc alloy tongue buckle plate movably connected to the outer wall of the sleeve block, and a second screw movably connected inside the zinc alloy tongue buckle plate.

[0007] Preferably, the rear baffle is engaged with the rear panel, the rear baffle is engaged with the protrusion through a relief groove, the protrusion and the relief groove are adapted to each other, and the rear panel is elastically set.

[0008] Preferably, the rear baffle is designed with an opening, the rear baffle is movably connected to the positioning screw, the positioning screw is threadedly connected to the stud, and the stud has a threaded groove inside.

[0009] Preferably, the sleeve block and the locking tongue form a sliding structure, and the locking tongue is engaged with the zinc alloy tongue buckle plate.

[0010] Preferably, the front handle has an internal mounting groove, the inner top wall of the mounting groove has a movable groove, the inner side wall of the movable groove has a guide groove, a locking block is movably connected inside the movable groove, a guide block is fixedly connected to the outer wall of the locking block, a return spring is fixedly connected to the top of the locking block, a placement box is installed inside the mounting groove, an insert plate is fixedly connected to the outer wall of the placement box, and a locking groove is provided inside the placement box.

[0011] Preferably, the front handle forms a sliding structure with the movable groove and the locking block, and the front handle forms a sliding structure with the guide groove and the guide block.

[0012] Preferably, the front handle forms a sliding structure with the placement box via an installation groove, and the placement box is engaged with a card block via a card slot.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of a rear baffle, rear panel, clearance groove, front panel, stud, sleeve block, first screw, zinc alloy tongue buckle plate and second screw, by installing the rear baffle on one side of the door panel and the front panel on the other side of the door panel, the positioning screw passes through the rear baffle and mates with one end of the stud, and the positioning screw is rotated. Since the positioning screw is threadedly connected to the stud, the positioning screw can be inserted into the stud for limiting, so that the rear baffle and the front panel are installed at the lock hole position of the door panel. The rear panel is moved so that it is fastened to the outer wall of the rear baffle. The sleeve block is inserted along the vertical direction of the lock hole. The first screw passes through the sleeve block and is rotated to limit the sleeve block. Then, by moving the zinc alloy tongue buckle plate so that it is mates and placed on the door frame, the second screw passes through the zinc alloy tongue buckle plate and is rotated to allow the second screw to be inserted into the door frame for limiting. This achieves the effect of facilitating the quick installation of multi-section anti-theft door lock and improving assembly efficiency.

[0015] 2. This utility model, through the design of a front handle, mounting groove, movable groove, guide groove, locking block, guide block, reset spring, placement box, and slot, allows for the convenient concealment of the spare key. By placing the spare key in the placement box and moving it, the placement box slides along the mounting groove into the front handle. This causes the outer wall of the placement box to press against the locking block, causing it to slide along the movable groove and retract into the front handle. The guide block slides along the guide groove. When the placement box is fully inserted into the mounting groove, the reset spring allows the locking block to slide back along the movable groove, causing the spherical end of the locking block to engage in the slot for limiting its position. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The image shown is a perspective view of the front handle of this utility model;

[0018] Figure 3 The diagram shown is a disassembled schematic of the front handle structure of this utility model.

[0019] Figure 4 This utility model is shown. Figure 3 Enlarged view of the structure at point A in the middle;

[0020] Figure 5 The image shown is a perspective view of the placement box of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Rear baffle; 2. Rear panel; 3. Protrusion; 4. Clearance groove; 5. Positioning screw; 6. Front panel; 7. Stud; 8. Front handle; 9. Sleeve block; 10. Locking tongue; 11. First screw; 12. Zinc alloy tongue buckle plate; 13. Second screw; 14. Mounting groove; 15. Movable groove; 16. Guide groove; 17. Locking block; 18. Guide block; 19. Return spring; 20. Placement box; 21. Insert plate; 22. Locking slot. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5This utility model provides a technical solution: a multi-section anti-theft door lock structure with quick installation function, including a rear baffle 1, a rear panel 2 installed on one side of the rear baffle 1, a protrusion 3 fixedly connected to the inner wall of the rear panel 2, an clearance groove 4 opened inside the rear baffle 1, a positioning screw 5 movably connected inside the rear baffle 1, a front panel 6 installed on the other side of the rear baffle 1, a stud 7 installed on the outer wall of the front panel 6, a front handle 8 installed on the outer wall of the front panel 6, a sleeve block 9 installed on the outer wall of the front panel 6, a lock tongue 10 movably connected inside the sleeve block 9, a first screw 11 installed inside the sleeve block 9, a zinc alloy tongue buckle plate 12 movably connected to the outer wall of the sleeve block 9, and a second screw 13 movably connected inside the zinc alloy tongue buckle plate 12.

[0024] The rear baffle 1 is engaged with the rear panel 2. The rear baffle 1 is engaged with the protrusion 3 through the relief groove 4. The protrusion 3 and the relief groove 4 are adapted to each other. The rear panel 2 is elastically set so that the rear panel 2 can be engaged and installed on the outer wall of the rear baffle 1.

[0025] The rear baffle 1 has an open design. The rear baffle 1 is movably connected to the positioning screw 5. The positioning screw 5 is threadedly connected to the stud 7. The stud 7 has a threaded groove inside, which allows the positioning screw 5 to pass through the rear baffle 1 and be inserted into the stud 7 for a limiting connection.

[0026] The sleeve block 9 and the locking tongue 10 form a sliding structure. The locking tongue 10 is engaged with the zinc alloy tongue buckle plate 12, which allows the locking tongue 10 to be locked into the zinc alloy tongue buckle plate 12 for limiting.

[0027] The front handle 8 has an internal mounting groove 14, an inner top wall of the mounting groove 14 has a movable groove 15, an inner side wall of the movable groove 15 has a guide groove 16, a locking block 17 is movably connected inside the movable groove 15, a guide block 18 is fixedly connected to the outer wall of the locking block 17, and a return spring 19 is fixedly connected to the top of the locking block 17. A placement box 20 is installed inside the mounting groove 14, an insert plate 21 is fixedly connected to the outer wall of the placement box 20, and a locking groove 22 is provided inside the placement box 20.

[0028] The front handle 8 forms a sliding structure with the locking block 17 via the movable groove 15. The front handle 8 also forms a sliding structure with the guide block 18 via the guide groove 16, which allows the locking block 17 to slide along the movable groove 15 and retract into the front handle 8.

[0029] The front handle 8 forms a sliding structure with the placement box 20 through the mounting groove 14. The placement box 20 is engaged with the locking block 17 through the locking groove 22, so that the end of the locking block 17 can be locked into the locking groove 22 for limiting.

[0030] Working principle:

[0031] according to Figure 1By installing the rear baffle 1 on one side of the door panel and the front panel 6 on the other side of the door panel, the positioning screw 5 is passed through the rear baffle 1 and connected to one end of the stud 7. The positioning screw 5 is rotated. Since the positioning screw 5 is threadedly connected to the stud 7, the positioning screw 5 can be inserted into the stud 7 for limiting. The rear baffle 1 and the front panel 6 are installed at the door panel lock hole position. The rear panel 2 is moved so that it is fastened to the outer wall of the rear baffle 1, which drives the protrusion 3 to be inserted into the relief groove 4 for limiting. The sleeve 9 is inserted in the vertical direction of the lock hole. The first screw 11 is then passed through the sleeve 9 and rotated so that the first screw 11 can be inserted into the door panel, limiting the sleeve 9. Then, by moving the zinc alloy tongue buckle plate 12 so that it is placed on the door frame, the second screw 13 is passed through the zinc alloy tongue buckle plate 12 and rotated so that the second screw 13 can be inserted into the door frame for limiting.

[0032] according to Figure 2 , Figure 3 , Figure 4 and Figure 5 By placing the spare key in the placement box 20 and moving the placement box 20, the insert plate 21 moves, causing the placement box 20 to slide along the mounting groove 14 and insert into the front handle 8. This causes the outer wall of the placement box 20 to press against the locking block 17, causing the locking block 17 to slide along the movable groove 15 and retract into the front handle 8. This causes the guide block 18 to slide along the guide groove 16. At this time, the return spring 19 is pressed by the locking block 17. When the placement box 20 is fully inserted into the mounting groove 14, the locking block 17 can slide back along the movable groove 15 under the action of the return spring 19, causing the spherical end of the locking block 17 to be locked into the locking groove 22 for limiting.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] 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 multi-section security door lock structure with quick installation function, comprising a back plate (1); characterized in that: A rear panel (2) is installed on one side of the rear baffle (1). A protrusion (3) is fixedly connected to the inner wall of the rear panel (2). An clearance groove (4) is opened inside the rear baffle (1). A positioning screw (5) is movably connected inside the rear baffle (1). A front panel (6) is installed on the other side of the rear baffle (1). A stud (7) is installed on the outer wall of the front panel (6). A front handle (8) is installed on the outer wall of the front panel (6). A sleeve block (9) is installed on the outer wall of the front panel (6). A locking tongue (10) is movably connected inside the sleeve block (9). A first screw (11) is installed inside the sleeve block (9). A zinc alloy tongue buckle plate (12) is movably connected to the outer wall of the sleeve block (9). A second screw (13) is movably connected inside the zinc alloy tongue buckle plate (12).

2. The multi-section security door lock structure with quick installation function according to claim 1, characterized in that: The rear baffle (1) is engaged with the rear panel (2). The rear baffle (1) is engaged with the protrusion (3) through the clearance groove (4). The protrusion (3) is adapted to the clearance groove (4). The rear panel (2) is elastically set.

3. The multi-section security door lock structure with quick installation function according to claim 1, characterized in that: The rear baffle (1) is designed with an opening. The rear baffle (1) is movably connected to the positioning screw (5). The positioning screw (5) is threadedly connected to the stud (7). The stud (7) has a threaded groove inside.

4. The multi-section security door lock structure with quick installation function according to claim 1, characterized in that: The sleeve block (9) and the locking tongue (10) form a sliding structure, and the locking tongue (10) is engaged with the zinc alloy tongue buckle plate (12).

5. The multi-section security door lock structure with quick installation function according to claim 1, characterized in that: The front handle (8) has an installation groove (14) inside. The inner top wall of the installation groove (14) has a movable groove (15). The inner side wall of the movable groove (15) has a guide groove (16). The movable groove (15) is movably connected to a locking block (17). The outer wall of the locking block (17) is fixedly connected to a guide block (18). The top of the locking block (17) is fixedly connected to a return spring (19). The installation groove (14) has a placement box (20) inside. The outer wall of the placement box (20) is fixedly connected to a plug plate (21). The placement box (20) has a locking groove (22) inside.

6. The multi-section security door lock structure with quick installation function according to claim 5, characterized in that: The front handle (8) forms a sliding structure with the locking block (17) through the movable groove (15), and the front handle (8) forms a sliding structure with the guide block (18) through the guide groove (16).

7. The multi-section security door lock structure with quick installation function according to claim 5, characterized in that: The front handle (8) forms a sliding structure with the placement box (20) through the mounting groove (14), and the placement box (20) is engaged with the card block (17) through the card slot (22).

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