An assembled lever handle lock structure with knob control function

By optimizing the structural design of the lever handle door lock, especially the combination of the first front lever, guide plate, adjusting rod and positioning plate, the problem of inconvenient knob assembly was solved, the stable rotation of the knob and the quick installation of the lever handle door lock were realized, and the assembly efficiency was improved.

CN224579196UActive Publication Date: 2026-07-31ZHONGSHAN TIESHEN LOCK IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN TIESHEN LOCK IND CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing modular lever handle door locks with knob control are not easy to assemble stably and quickly, affecting installation efficiency.

Method used

By setting up a combined structure of a first front handle, guide plate, adjusting rod, positioning plate, through hole and knob body, the knob body can be easily installed in the first front handle, and the knob can be stably rotated through the cooperation of adjusting rod and positioning plate; at the same time, the combination of rear stop assembly, latch assembly, safety bar, square bar, front stop assembly and clutch enables quick assembly of handle door lock.

Benefits of technology

It enables quick assembly of knobs and stable installation of lever handle door locks, improving assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224579196U_ABST
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Abstract

This utility model relates to the field of assembled lever handle door lock technology, specifically an assembled lever handle door lock structure with knob control function. It includes a rear stop assembly, a first front handle mounted on the outer wall of the rear stop assembly, a guide plate fixedly connected to the inner wall of the first front handle, and a threaded sleeve fixedly connected to the inner wall of the first front handle. An adjusting rod is movably connected inside the threaded sleeve. This utility model allows the knob body to be moved so that it is installed inside the first front handle. Rotating the adjusting rod causes it to rotate and move to the right, rotating one end of the adjusting rod within a through hole. This causes a positioning plate to slide to the right along the guide plate, engaging a clearance groove inside the knob body. This limits the knob body's position without affecting its rotation along the first front handle, facilitating quick assembly of the first front handle and the knob body.
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Description

Technical Field

[0001] This utility model relates to the field of assembled lever handle door lock technology, and in particular to an assembled lever handle door lock structure with knob control function. Background Technology

[0002] Modular lever handle door locks are door lock products that are modularly designed and can be disassembled and assembled. Their core feature is that key components such as the lock body, lever handle, lock cylinder, and panel are produced in a standardized manner. Users or installers can easily assemble the entire lock by splicing and fixing it. They are widely used in various types of doors in homes, offices, and other places. Some door lock lever handles are equipped with knobs to control the opening and closing of the door lock.

[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 improve the usability of the handle, it makes it inconvenient to assemble the knob stably and quickly, thus affecting the actual installation efficiency. Utility Model Content

[0005] To overcome the problem of inconvenient, stable, and quick assembly of the knob in a common modular lever handle door lock structure with knob control function.

[0006] The technical solution of this utility model is as follows: an assembled handle door lock structure with knob control function, including a rear stop assembly, a first front handle installed on the outer wall of the rear stop assembly, a guide plate fixedly connected to the inner wall of the first front handle, a threaded sleeve fixedly connected to the inner wall of the first front handle, an adjusting rod movably connected inside the threaded sleeve, a positioning plate movably connected to one end of the adjusting rod, a through hole opened inside the positioning plate, a knob body movably connected inside the first front handle, and an clearance groove opened inside the knob body.

[0007] Preferably, the outer wall of the adjusting rod is provided with threads, and the adjusting rod is threadedly connected to the threaded sleeve.

[0008] Preferably, the adjusting rod forms a rotating structure with the positioning plate through a through hole, and the positioning plate forms a sliding structure with the first front handle through a guide plate.

[0009] Preferably, the positioning plate is semi-circular, and the positioning plate is movably connected to the knob body through an avoidance groove. The knob body and the first front handle form a rotating structure, and the first front handle is a slotted design.

[0010] Preferably, a locking tongue assembly is installed on the outer wall of the rear deflector assembly, and a locking tongue body is movably connected inside the locking tongue assembly. A safety bar is installed on one side of the locking tongue assembly, and a square bar is installed on the other side of the locking tongue assembly. A front deflector assembly is installed on the outer wall of the square bar, and a clutch is installed on the outer wall of the front deflector assembly. A second front handle is installed on the outer wall of the front deflector assembly, and a first screw is movably connected inside the second front handle. A second screw is movably connected inside the first front handle.

[0011] Preferably, the first front handle is engaged with the rear stop assembly, and the latch body and the latch assembly form a rotating structure.

[0012] Preferably, the rear bumper assembly has an open design and is movably connected to the second screw.

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

[0014] 1. This utility model, through the setting of a first front handle, guide plate, adjusting rod, positioning plate, through hole, knob body and clearance groove, allows the knob body to be installed inside the first front handle by moving the knob body. Then, by rotating the adjusting rod, the adjusting rod can be rotated and moved to the right, causing one end of the adjusting rod to rotate in the through hole, and causing the positioning plate to slide to the right along the guide plate, so that the positioning plate is engaged in the clearance groove opened inside the knob body. This limits the knob body while not affecting its rotation along the first front handle, thus facilitating quick assembly of the first front handle and the knob body.

[0015] 2. This utility model, through the setting of a rear stop assembly, a first front handle, a latch assembly, a safety bar, a square bar, a front stop assembly, a clutch, a second front handle, and a first screw, facilitates quick assembly of the handle door lock by moving the latch assembly to insert it into the lock hole of the door panel, then moving the rear stop assembly to install it on the safety bar, moving the first front handle to engage it on the outer wall of the rear stop assembly, passing the second screw through the first front handle and rotating it, moving the front stop assembly to install it on the outer wall of the square bar, installing the clutch on one side of the front stop assembly, moving the second front handle to install it on the outer wall of the front stop assembly, and passing the first screw through the second front handle and rotating it so that one end of it is inserted into the front stop assembly for limiting, thus achieving the effect of facilitating quick assembly of the 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 image shown is a perspective view of the first front handle of this utility model;

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

[0019] Figure 4 The view shown is a perspective sectional view of the first front handle of this utility model;

[0020] Figure 5 The image shown is a three-dimensional view of the positioning card plate of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Rear deflector assembly; 2. First front handle; 3. Guide plate; 4. Threaded sleeve; 5. Adjusting rod; 6. Positioning plate; 7. Through hole; 8. Knob body; 9. Clearance groove; 10. Locking tongue assembly; 11. Locking tongue body; 12. Safety bar; 13. Square rod; 14. Front deflector assembly; 15. Clutch; 16. Second front handle; 17. First screw; 18. Second screw. 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 1-5 This utility model provides a technical solution: an assembled handle door lock structure with knob control function, including a rear stop assembly 1, a first front handle 2 installed on the outer wall of the rear stop assembly 1, a guide plate 3 fixedly connected to the inner wall of the first front handle 2, a threaded sleeve 4 fixedly connected to the inner wall of the first front handle 2, an adjusting rod 5 movably connected inside the threaded sleeve 4, a positioning plate 6 movably connected to one end of the adjusting rod 5, a through hole 7 opened inside the positioning plate 6, a knob body 8 movably connected inside the first front handle 2, and an avoidance groove 9 opened inside the knob body 8.

[0024] Preferably, the outer wall of the adjusting rod 5 is provided with threads, and the adjusting rod 5 is threadedly connected to the threaded sleeve 4, so that the adjusting rod 5 can be rotated and moved along the threaded sleeve 4.

[0025] Preferably, the adjusting rod 5 forms a rotating structure with the positioning plate 6 through the through hole 7, and the positioning plate 6 forms a sliding structure with the first front handle 2 through the guide plate 3, so that the adjusting rod 5 can rotate in the through hole 7 and drive the positioning plate 6 to move.

[0026] Preferably, the positioning plate 6 is semi-circular and is movably connected to the knob body 8 through the clearance groove 9. The knob body 8 and the first front handle 2 form a rotating structure. The first front handle 2 is slotted, which allows the positioning plate 6 to be inserted into the clearance groove 9, so that the knob body 8 can be installed in the first front handle 2 and can rotate stably along the first front handle 2.

[0027] Preferably, a locking tongue assembly 10 is installed on the outer wall of the rear deflector assembly 1, and a locking tongue body 11 is movably connected inside the locking tongue assembly 10. A bumper 12 is installed on one side of the locking tongue assembly 10, and a square bar 13 is installed on the other side of the locking tongue assembly 10. A front deflector assembly 14 is installed on the outer wall of the square bar 13, and a clutch 15 is installed on the outer wall of the front deflector assembly 14. A second front handle 16 is installed on the outer wall of the front deflector assembly 14, and a first screw 17 is movably connected inside the second front handle 16. A second screw 18 is movably connected inside the first front handle 2.

[0028] Preferably, the first front handle 2 is engaged with the rear deflector assembly 1, and the latch body 11 and the latch assembly 10 form a rotating structure, which allows the first front handle 2 to be engaged and installed on the outer wall of the rear deflector assembly 1.

[0029] Preferably, the rear bumper assembly 1 has an open design and is movably connected to the second screw 18, so that the second screw 18 can be inserted into the rear bumper assembly 1 for limiting.

[0030] Working principle:

[0031] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 By moving the knob body 8, the knob body 8 is installed inside the first front handle 2. Then, the adjusting rod 5 is rotated. Since the adjusting rod 5 is threadedly connected to the threaded sleeve 4, the adjusting rod 5 can be rotated and moved to the right, causing one end of the adjusting rod 5 to rotate in the through hole 7. This causes the positioning plate 6 to slide to the right along the guide plate 3, so that the positioning plate 6 is engaged in the clearance groove 9 opened inside the knob body 8. This limits the knob body 8 without affecting its rotation along the first front handle 2.

[0032] according to Figure 1By moving the latch assembly 10, inserting it into the lock hole of the door panel, then moving the rear deflector assembly 1, mounting it on the bumper 12, moving the first front handle 2, engaging it on the outer wall of the rear deflector assembly 1, passing the second screw 18 through the first front handle 2 and rotating it so that the end of the second screw 18 is inserted into the rear deflector assembly 1 for limiting, moving the front deflector assembly 14, mounting it on the outer wall of the square rod 13, then mounting the clutch 15 on one side of the front deflector assembly 14, moving the second front handle 16, mounting it on the outer wall of the front deflector assembly 14, passing the first screw 17 through the second front handle 16 and rotating it so that one end is inserted into the front deflector assembly 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. An assembled lever handle lockset structure with knob control function, comprising a backstop assembly (1); characterized in that: The rear bumper assembly (1) is fitted with a first front handle (2) on its outer wall. A guide plate (3) is fixedly connected to the inner wall of the first front handle (2). A threaded sleeve (4) is fixedly connected to the inner wall of the first front handle (2). An adjusting rod (5) is movably connected inside the threaded sleeve (4). A positioning plate (6) is movably connected to one end of the adjusting rod (5). A through hole (7) is opened inside the positioning plate (6). A knob body (8) is movably connected inside the first front handle (2). An clearance groove (9) is opened inside the knob body (8).

2. An assembled lever door latch structure with knob control function according to claim 1, characterized in that: The outer wall of the adjusting rod (5) is provided with threads, and the adjusting rod (5) is threadedly connected to the threaded sleeve (4).

3. An assembled lever door latch structure with knob control function according to claim 1, characterized in that: The adjusting rod (5) forms a rotating structure with the positioning plate (6) through the through hole (7), and the positioning plate (6) forms a sliding structure with the first front handle (2) through the guide plate (3).

4. An assembled lever door latch structure with knob control function according to claim 1, characterized in that: The positioning plate (6) is semi-arc-shaped. The positioning plate (6) is movably connected to the knob body (8) through the clearance groove (9). The knob body (8) and the first front handle (2) form a rotating structure. The first front handle (2) is a slotted design.

5. An assembled lever door latch structure with knob control function according to claim 1, characterized in that: The rear deflector assembly (1) has a locking tongue assembly (10) installed on its outer wall. The locking tongue assembly (10) is movably connected to a locking tongue body (11). A safety bar (12) is installed on one side of the locking tongue assembly (10). A square bar (13) is installed on the other side of the locking tongue assembly (10). A front deflector assembly (14) is installed on the outer wall of the square bar (13). A clutch (15) is installed on the outer wall of the front deflector assembly (14). A second front handle (16) is installed on the outer wall of the front deflector assembly (14). A first screw (17) is movably connected to the interior of the second front handle (16). A second screw (18) is movably connected to the interior of the first front handle (2).

6. The assembled lever handle door lock structure with knob control function according to claim 5, characterized in that: The first front handle (2) is engaged with the rear stop assembly (1), and the latch body (11) and the latch assembly (10) form a rotating structure.

7. An assembled lever handle door lock structure with a knob control function according to claim 5, characterized in that: The rear bumper assembly (1) has an open design and is movably connected to the second screw (18).