A quick-mounting anti-theft handle door lock structure

Abstract

This utility model relates to the field of anti-theft lever handle door lock technology, specifically a quick-install anti-theft lever handle door lock structure, including a rear lock head assembly. A positioning screw is installed inside the rear lock head assembly. A front assembly is installed on one side of the rear lock head assembly. A front retaining ring is installed on the outer wall of the front assembly, and a lock scale is installed on the outer wall of the front retaining ring. This utility model allows the rear lock head assembly to be installed on one side of the door panel lock hole position by moving the rear lock head assembly. Two positioning screws are passed through the through hole of the rear lock head assembly and the door panel. Then, the front assembly is moved so that its internal threaded hole aligns with one end of the positioning screw. Rotating the positioning screw allows one end of the positioning screw to be inserted into the front assembly for limiting, causing the front retaining ring to be inserted into the rear lock head assembly. Moving the housing allows it to be inserted perpendicularly to the lock hole, causing the lock scale to engage with the lock tongue. This facilitates quick assembly of the anti-theft lever handle door lock, improving assembly and positioning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft handle door lock technology, and in particular to a quick-install anti-theft handle door lock structure. Background Technology

[0002] Anti-theft lever handle door locks are a type of door lock device that combines the convenience of lever operation with anti-theft security. They are widely used in residential, commercial buildings, office spaces and other scenarios. As users' demand for "convenient door opening + basic anti-theft" increases, lever handle locks are gradually replacing traditional 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 prevent corrosion, deterioration, discoloration, and metal oxidation of the surface layer of the handle body, it makes it inconvenient to quickly assemble the handle door lock, thus affecting the efficiency and convenience of actual installation. Utility Model Content

[0005] To overcome the problem that common anti-theft lever handle door lock structures make quick assembly of lever handle door locks inconvenient.

[0006] The technical solution of this utility model is as follows: it includes a rear lock head assembly, a positioning screw installed inside the rear lock head assembly, a front assembly installed on one side of the rear lock head assembly, a front retaining ring installed on the outer wall of the front assembly, a lock ruler installed on the outer wall of the front retaining ring, a housing installed inside the front retaining ring, a lock tongue movably connected inside the housing, a first wood screw movably connected inside the housing, a door strike plate movably connected on one side of the housing, a second wood screw movably connected inside the door strike plate, a door strike box installed on one side of the door strike plate, and a key installed inside the front assembly.

[0007] Preferably, the rear lock head assembly has an open-hole design, the rear lock head assembly is movably connected to the positioning screw, the rear lock head assembly is threadedly connected to the front assembly, and the front assembly has a threaded hole inside.

[0008] Preferably, the front retaining ring has a slotted design and is engaged with the housing.

[0009] Preferably, the housing and the latch form a sliding structure, the latch is engaged with the door strike box, the door strike plate has an open design, and the front component and the key form a rotating structure.

[0010] Preferably, a rotating rod is fixedly connected to one side of the front component, a positioning tooth is fixedly connected to the outer wall of the rotating rod, the positioning tooth has a tooth groove inside, a dustproof plate is movably connected to the outer wall of the rotating rod, a movable groove is opened inside the dustproof plate, an L-shaped limiting plate is fixedly connected to the inner wall of the dustproof plate, a positioning block is movably connected inside the L-shaped limiting plate, and a return spring is fixedly connected to the top of the positioning block.

[0011] Preferably, the rotating rod forms a rotating structure with the dustproof plate through the movable groove, and the positioning block forms a sliding structure with the L-shaped limiting plate.

[0012] Preferably, the positioning block is engaged with the positioning tooth through a tooth groove, and the tooth groove is arranged in a ring around the central axis of the positioning tooth.

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

[0014] 1. This utility model, through the setting of a rear lock head assembly, positioning screws, a front assembly, a front retaining ring, a lock ruler, a housing, a lock tongue, a first wood screw, a door strike plate, a second wood screw, and a door strike box, facilitates the quick assembly of anti-theft handle door locks by moving the rear lock head assembly to install it on one side of the door panel lock hole position. Two positioning screws are passed through the through hole of the rear lock head assembly and the door panel. The front assembly is then moved so that its internal threaded hole aligns with one end of the positioning screw. Rotating the positioning screw allows one end of the positioning screw to be inserted into the front assembly for limiting, causing the front retaining ring to be inserted into the rear lock head assembly. The housing is moved so that it is inserted vertically along the lock hole, causing the lock ruler to be engaged in the lock tongue. The first wood screw is passed through the through hole of the housing and rotated to insert into the door panel. The door strike box is then moved so that it aligns and engages with the door frame. The door strike plate is then installed on one side of the door strike box. The second wood screw is passed through the door strike plate and rotated to stably install the door strike box within the door frame. This design facilitates quick assembly of anti-theft handle door locks and improves assembly and positioning efficiency.

[0015] 2. This utility model, through the design of a front component, positioning teeth, tooth grooves, a dustproof plate, an L-shaped limiting plate, a positioning block, and a return spring, allows the positioning teeth to press against the positioning block by pulling the dustproof plate. This causes the positioning block to move out of the tooth groove and release the limiting effect on the dustproof plate, allowing the dustproof plate to rotate along the front component. When the dustproof plate blocks the lock hole, the positioning block can slide back along the L-shaped limiting plate under the action of the return spring, locking into the tooth groove of the positioning teeth for limiting. This provides dust protection for the lock hole of the front component when not in use, thereby extending the service life of the anti-theft handle door lock. Attached Figure Description

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

[0017] Figure 2 The diagram shown is a structurally disassembled schematic of this utility model.

[0018] Figure 3 The image shown is a perspective view of the dustproof plate of this utility model;

[0019] Figure 4 The image shown is a three-dimensional view of the positioning teeth of this utility model;

[0020] Figure 5 The image shown is a three-dimensional sectional view of the dustproof panel of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Rear lock cylinder assembly; 2. Positioning screw; 3. Front assembly; 4. Front retaining ring; 5. Lock gauge; 6. Housing; 7. Lock tongue; 8. First wood screw; 9. Door strike plate; 10. Second wood screw; 11. Door strike box; 12. Key; 13. Rotating rod; 14. Positioning tooth; 15. Tooth groove; 16. Dustproof plate; 17. Movable groove; 18. L-shaped limit plate; 19. Positioning block; 20. Return spring. 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: it includes a rear lock head assembly 1, a positioning screw 2 installed inside the rear lock head assembly 1, a front assembly 3 installed on one side of the rear lock head assembly 1, a front retaining ring 4 installed on the outer wall of the front assembly 3, a lock ruler 5 installed on the outer wall of the front retaining ring 4, a housing 6 installed inside the front retaining ring 4, a lock tongue 7 movably connected inside the housing 6, a first wood screw 8 movably connected inside the housing 6, a door strike plate 9 movably connected on one side of the housing 6, a second wood screw 10 movably connected inside the door strike plate 9, a door strike box 11 installed on one side of the door strike plate 9, and a key 12 installed inside the front assembly 3.

[0024] The rear lock assembly 1 has an open hole design. The rear lock assembly 1 is movably connected to the positioning screw 2. The rear lock assembly 1 is threadedly connected to the front assembly 3. The front assembly 3 has a threaded hole inside, which allows the positioning screw 2 to pass through the rear lock assembly 1 and the door panel. By rotating the positioning screw 2, one end of the positioning screw 2 can be inserted into the front assembly 3 for limiting.

[0025] The front retaining ring 4 has a slotted design. The front retaining ring 4 and the housing 6 are snapped together, allowing the housing 6 to be inserted into the clearance groove inside the front retaining ring 4 for assembly.

[0026] The housing 6 and the latch 7 form a sliding structure. The latch 7 is engaged with the door strike box 11. The door strike plate 9 has an open design. The front component 3 and the key 12 form a rotating structure. The latch 7 can be moved along the housing 6 by rotating the key 12, so that one end of the latch 7 is inserted into the door strike box 11 for limiting.

[0027] A rotating rod 13 is fixedly connected to one side of the front component 3. A positioning tooth 14 is fixedly connected to the outer wall of the rotating rod 13. A tooth groove 15 is opened inside the positioning tooth 14. A dustproof plate 16 is movably connected to the outer wall of the rotating rod 13. A movable groove 17 is opened inside the dustproof plate 16. An L-shaped limiting plate 18 is fixedly connected to the inner wall of the dustproof plate 16. A positioning block 19 is movably connected inside the L-shaped limiting plate 18. A return spring 20 is fixedly connected to the top of the positioning block 19.

[0028] The rotating rod 13 forms a rotating structure with the dustproof plate 16 through the movable groove 17, and the positioning block 19 forms a sliding structure with the L-shaped limiting plate 18, which can make the dustproof plate 16 rotate along the rotating rod 13, thereby blocking and protecting the lock hole opened in the front component 3.

[0029] The positioning block 19 is engaged with the positioning tooth 14 through the tooth groove 15. The tooth groove 15 is arranged in a ring around the central axis of the positioning tooth 14, which allows the positioning block 19 to be engaged in the tooth groove 15 inside the positioning tooth 14 for limiting, so that the dustproof plate 16 can be self-positioned after rotation.

[0030] Working principle:

[0031] according to Figure 1 and Figure 2 By moving the rear lock assembly 1, it is installed on one side of the door panel lock hole. Two positioning screws 2 are passed through the through hole of the rear lock assembly 1 and the door panel. Then, the front assembly 3 is moved so that its internal threaded hole aligns with one end of the positioning screw 2. The positioning screw 2 is rotated. Since the positioning screw 2 is threadedly connected to the front assembly 3, one end of the positioning screw 2 can be inserted into the front assembly 3 for limiting. This causes the front retaining ring 4 to be inserted into the rear lock assembly 1. The sleeve 6 is moved so that it is inserted vertically along the lock hole, causing the lock ruler 5 to be inserted into the lock tongue 7. The first wood screw 8 is passed through the through hole of the sleeve 6 and rotated so that the first wood screw 8 can be inserted into the door panel. Then, the door strike box 11 is moved so that it aligns and is inserted into the door frame. The door strike plate 9 is installed on one side of the door strike box 11. The second wood screw 10 is passed through the door strike plate 9 and rotated so that the door strike box 11 is stably installed in the door frame. At this time, the key 12 is inserted into the front assembly 3 and rotated so that the lock tongue 7 can be inserted into the door strike box 11, thus limiting the door panel closure.

[0032] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 By pulling the dustproof plate 16, the tooth groove 15 of the positioning tooth 14 at its current position can press against the positioning block 19, causing the positioning block 19 to slide along the L-shaped limiting plate 18. This causes the return spring 20 to be pressed, allowing the positioning block 19 to move out of the tooth groove 15 and release the limiting effect on the dustproof plate 16. With the cooperation of the rotating rod 13 and the movable groove 17, the dustproof plate 16 can rotate along the front component 3. When the dustproof plate 16 blocks the lock hole, the positioning block 19 can slide back along the L-shaped limiting plate 18 under the action of the return spring 20, allowing the positioning block 19 to engage in the tooth groove 15 at the current position of the positioning tooth 14 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 fast installation anti-theft handle door lock structure, comprising a rear lock head assembly (1); characterized in that: The rear lock assembly (1) is equipped with a positioning screw (2). A front assembly (3) is installed on one side of the rear lock assembly (1). A front retaining ring (4) is installed on the outer wall of the front assembly (3). A lock ruler (5) is installed on the outer wall of the front retaining ring (4). A housing (6) is installed inside the front retaining ring (4). A lock tongue (7) is movably connected inside the housing (6). A first wood screw (8) is movably connected inside the housing (6). A door strike plate (9) is movably connected on one side of the housing (6). A second wood screw (10) is movably connected inside the door strike plate (9). A door strike box (11) is installed on one side of the door strike plate (9). A key (12) is installed inside the front assembly (3).

2. The quick installation anti-theft lever handle door lock structure according to claim 1, characterized in that: The rear lock head assembly (1) is designed with an open hole. The rear lock head assembly (1) is movably connected to the positioning screw (2). The rear lock head assembly (1) is threadedly connected to the front assembly (3). The front assembly (3) has a threaded hole inside.

3. The fast-assembled anti-theft handle door lock structure according to claim 1, characterized in that: The front retaining ring (4) has a slotted design and is engaged with the housing (6).

4. The quick installation anti-theft lever handle door lock structure according to claim 1, characterized in that: The casing (6) and the latch (7) form a sliding structure. The latch (7) is engaged with the door latch box (11). The door latch plate (9) has an open design. The front component (3) and the key (12) form a rotating structure.

5. The quick installation anti-theft lever handle door lock structure according to claim 1, characterized in that: A rotating rod (13) is fixedly connected to one side of the front component (3). A positioning tooth (14) is fixedly connected to the outer wall of the rotating rod (13). A tooth groove (15) is opened inside the positioning tooth (14). A dustproof plate (16) is movably connected to the outer wall of the rotating rod (13). A movable groove (17) is opened inside the dustproof plate (16). An L-shaped limiting plate (18) is fixedly connected to the inner wall of the dustproof plate (16). A positioning block (19) is movably connected inside the L-shaped limiting plate (18). A return spring (20) is fixedly connected to the top of the positioning block (19).

6. The quick installation anti-theft handle door lock structure according to claim 5, characterized in that: The rotating rod (13) forms a rotating structure with the dustproof plate (16) through the movable groove (17), and the positioning block (19) forms a sliding structure with the L-shaped limiting plate (18).

7. The fast-assembled anti-theft handle door lock structure according to claim 5, characterized in that: The positioning block (19) is engaged with the positioning tooth (14) through the tooth groove (15), and the tooth groove (15) is arranged in a ring around the central axis of the positioning tooth (14).

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