Split type door lock structure
By designing a split-type door lock structure, using a combination of split and integrated latch covers, the problem of balancing aesthetics and practicality in traditional locks is solved, achieving both diverse appearances and simplified installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HOPO WINDOW CONTROL TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-05
AI Technical Summary
The split structure of traditional locks makes it difficult to simultaneously meet the requirements of aesthetics and practicality, and the installation process is complicated.
A split-type door lock structure was designed, including a split latch cover and a continuous latch cover, which are connected by fasteners to achieve a detachable connection between the lock body components and the actuator, providing two state options to meet different aesthetic needs and simplify the installation process.
It has enabled diverse appearances of door lock structures, reduced maintenance and installation costs, solved the problem of inconsistent positional accuracy of the three components in traditional locks, and simplified the installation process.
Smart Images

Figure CN224326117U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of door and window locks, and in particular to a split-type door lock structure. Background Technology
[0002] The design of separate connection structures for the lock body assembly box and the transmission mechanism, as well as the design of decorative snap covers, is an important research direction in the field of locks. Traditional locks mostly adopt an integrated design of the lock body assembly and transmission mechanism, which presents problems such as maintenance difficulties. In recent years, with the popularization of modular design, separate structures are gradually becoming the trend, the core of which lies in reducing maintenance costs and flexibly adapting to the transmission mechanism. Currently, the design of decorative snap covers in separate structures is difficult to simultaneously meet the requirements of aesthetics and practicality. Utility Model Content
[0003] The purpose of this invention is to provide a split-type door lock structure to solve the above-mentioned problems.
[0004] This utility model provides a split-type door lock structure, including a lock body assembly, a transmission mechanism, and a transmission connecting rod that transmits power between the lock body assembly and the transmission mechanism. The split-type door lock structure further includes a split cover and a continuous cover; the split cover is detachably connected to the lock body assembly and the transmission mechanism respectively to form a first state of the split-type door lock structure; the continuous cover is detachably connected to the lock body assembly and covers the transmission mechanism to form a second state of the split-type door lock structure.
[0005] Optionally, the integrated buckle cover is connected to the lock body assembly by fasteners, and the integrated buckle cover covers the outer surface of the lock body assembly and the outer surface of the actuator.
[0006] Optionally, the lock body assembly is provided with a threaded hole, and the integrated buckle cover is provided with a reserved through hole. The threaded hole and the reserved through hole are arranged opposite to each other, and the fastener passes through the reserved through hole and is fixed in the threaded hole.
[0007] Optionally, the integrated cover includes a cover body and a stopper, the stopper being located at one end of the cover body and used to abut against and position the transmission device.
[0008] Optionally, the sealing includes a first stamping part and an elastic part, the cover body is provided with a second stamping part adapted to the first stamping part, the first stamping part is stamped and positioned on the second stamping part, and the elastic part is connected to the cover body and abuts against the transmission device.
[0009] Optionally, the split cover includes a first cover and a second cover. The first cover is detachably connected to the lock body assembly and covers the outer surface of the lock body assembly, and the second cover is detachably connected to the actuator and covers the outer surface of the actuator.
[0010] Optionally, the first cover is provided with a first latching part, and the lock body assembly is provided with a third latching part, wherein the first latching part and the third latching part are engaged.
[0011] Optionally, the first latching part is a hook, and the third latching part is a slot.
[0012] Optionally, the second cover is provided with a second latching part, and the transmission device is provided with a fourth latching part, wherein the second latching part is engaged with the fourth latching part.
[0013] Optionally, the second latching part is a hook, and the fourth latching part is a slot.
[0014] The beneficial effects of this plan are as follows:
[0015] This solution offers a choice between a separate latch cover and a continuous latch cover for the split-type door lock structure. This allows for switching between the two covers as needed, enabling the product to be more aesthetically pleasing and catering to diverse tastes. In the first state, the separate latch cover prevents direct connection between the lock body assembly and the actuator, eliminating any issues with positional accuracy. In the second state, the continuous latch cover completely covers the lock body assembly and the actuator, but is not connected to the actuator, similarly avoiding accuracy issues related to the latch cover, lock body assembly, and actuator bracket. Both states simplify the installation process compared to existing technologies, making them more practical. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the first embodiment;
[0017] Figure 2 This is a schematic diagram of the exploded structure of the first embodiment;
[0018] Figure 3 This is a schematic diagram of the structure of the second embodiment;
[0019] Figure 4 This is a schematic diagram of the exploded structure of the second embodiment;
[0020] Figure 5 This is a schematic diagram of the one-piece snap-on cap structure;
[0021] Figure 6 for Figure 5 A magnified view of a portion of circle A in the middle.
[0022] Explanation of reference numerals in the attached figures:
[0023] 10. Lock body assembly; 11. Third latching part; 12. Threaded hole; 12. Threaded hole; 20. Transmission device; 21. Fourth latching part; 30. Transmission connecting rod; 40. Split latch cover; 41. First cover body; 411. First latching part; 42. Second cover body; 421. Second latching part; 50. Integrated latch cover; 51. Latch cover body; 511. Reserved through hole; 512. Second stamping part; 52. Seal; 521. First stamping part; 522. Elastic part; 60. Fastener. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the terms in this utility model can be understood according to the specific circumstances.
[0026] This solution includes the following structure:
[0027] Transmission device 20: The main transmission mechanism;
[0028] Transmission connecting rod 30: Enables linkage between the lock body and the transmission device 20;
[0029] Lock body assembly 10: used to connect with the lock cylinder. When locked, the overall transmission is limited, and the actuator 20 cannot function; when opened, the limit is released, and the actuator 20 can transmit normally.
[0030] Separate buckle cover 40: Exterior decoration;
[0031] Integrated buckle cover 50: Composed of a plug 52 and an integrated buckle cover 50 body, it is fixed to the lock body assembly 10 with fasteners 60 and serves a decorative purpose;
[0032] 52: for exterior decoration, and also in contact with the main body of the integrated cover 50 and the transmission device 20 to eliminate gaps;
[0033] 51. Cover body: exterior decoration, length can be adjusted by calculation;
[0034] Fastener 60: Secures the integrated buckle cover 50 to the lock body assembly 10.
[0035] The split cover 40 and the integrated cover 50 can be used interchangeably.
[0036] First Embodiment
[0037] See Figure 1-2 This embodiment discloses a split lock body assembly 10 structure, including a lock body assembly 10, a transmission device 20, a transmission connecting rod 30, and a split buckle cover 40; the transmission connecting rod 30 drives the lock body assembly 10 and the transmission device 20, and the split buckle cover 40 is used to be detachably connected to the lock body assembly 10 and the transmission device 20 respectively to form a split lock body assembly 10 structure in a first state.
[0038] Specifically, the split cover 40 includes a first cover 41 and a second cover 42. The first cover 41 is detachably connected to the lock body assembly 10 and covers the outer surface of the lock body assembly 10. The second cover 42 is detachably connected to the actuator 20 and covers the outer surface of the actuator 20. It should be noted that the lock body assembly 10 and the actuator 20 are designed separately, and the first cover 41 and the second cover 42 are set relatively independently, reducing maintenance and installation costs.
[0039] The first cover 41 has a first latching part 411, and the lock body assembly 10 has a third latching part 11. The first latching part 411 and the third latching part 11 are engaged. The first latching part 411 is a hook, and the third latching part 11 is a slot. The second cover 42 has a second latching part 421, and the transmission device 20 has a fourth latching part 21. The second latching part 421 and the fourth latching part 21 are engaged. The second latching part 421 is a hook, and the fourth latching part 21 is a slot. Both the hook and the slot are modular standard interface structures and can also be configured in reverse.
[0040] Second Embodiment
[0041] See Figure 3-6This embodiment discloses a split-type lock body assembly 10 structure, including a lock body assembly 10, a transmission device 20, a transmission connecting rod 30, and an integrated cover 50. The transmission connecting rod 30 drivesly connects the lock body assembly 10 and the transmission device 20. The integrated cover 50 is detachably connected to the lock body assembly 10 and covers the transmission device 20 to form a split-type lock body assembly 10 structure in a second state. By fixing the integrated cover 50 to the lock body assembly 10 instead of simultaneously fixing it to the lock body assembly 10 and the transmission device 20, the problem of three-position precision coupling is avoided, and the installation process is simplified.
[0042] Specifically, the integrated buckle cover 50 and the lock body assembly 10 are connected by fasteners 60. The lock body assembly 10 is provided with a threaded hole 12, and the integrated buckle cover 50 is provided with a reserved through hole 511. The threaded hole 12 and the reserved through hole 511 are arranged opposite to each other, and the fasteners 60 pass through the reserved through hole 511 and are fixed in the threaded hole 12.
[0043] In this embodiment, the integrated cover 50 includes a cover body 51 and a plug 52. The plug 52 is located at one end of the cover body 51 and is used to abut against the positioning actuator 20. The plug 52 includes a first stamped part 521 and an elastic part 522. The cover body 51 has a second stamped part 512 that matches the first stamped part 521. The first stamped part 521 is stamped and positioned on the second stamped part 512. The elastic part 522 is connected to the cover body 51 and abuts against the actuator 20. After the plug 52 is inserted into the cover body 51, the cover body 51 is deformed by stamping to fix the plug 52, ensuring that the plug 52 will not fall out and maintaining a high relative positional accuracy with the integrated cover 50 body. The elastic part 522 can reliably abut against the connector of the actuator 20, solving the problem that the integrated cover 50 is only fixed to the lock body assembly 10, causing one end of the actuator 20 to wobble.
[0044] In traditional door and window lock assembly 10 and transmission device 20 are designed as separate units, if an integrated cover 50 is used, the relative positional accuracy requirements of the profile opening, the transmission connecting rod 30 cutting position, and the cover fixing position must be met simultaneously, resulting in extremely high installation difficulty. This utility model solves the following problems through the above structural optimization:
[0045] (1) Eliminate the problem of multi-position precision coordination during the installation of the integrated cover 50;
[0046] (2) Reduce the amount of shaking caused by the end of the cover not being fixed to one end of the transmission device 20.
[0047] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A split-type door lock structure, comprising a lock body assembly, a transmission mechanism, and a transmission connecting rod that transmits power between the lock body assembly and the transmission mechanism, characterized in that, The split-type door lock structure also includes a split latch cover and a continuous latch cover; the split latch cover is used to be detachably connected to the lock body assembly and the actuator respectively to form a split-type door lock structure in a first state; The integrated cover is used to detachably connect to the lock body assembly and cover the actuator to form a split door lock structure in the second state.
2. The split-type door lock structure according to claim 1, characterized in that, The integrated buckle cover is connected to the lock body assembly by fasteners, and the integrated buckle cover covers the outer surface of the lock body assembly and the outer surface of the actuator.
3. The split-type door lock structure according to claim 2, characterized in that, The lock body assembly is provided with a threaded hole, and the integrated buckle cover is provided with a reserved through hole. The threaded hole and the reserved through hole are arranged opposite to each other, and the fastener passes through the reserved through hole and is fixed in the threaded hole.
4. The split-type door lock structure according to claim 1, characterized in that, The integrated cover includes a cover body and a stopper. The stopper is located at one end of the cover body and is used to abut against and position the transmission device.
5. The split-type door lock structure according to claim 4, characterized in that, The sealing includes a first stamping part and an elastic part. The cover body is provided with a second stamping part that is adapted to the first stamping part. The first stamping part is stamped and positioned on the second stamping part. The elastic part is connected to the cover body and abuts against the transmission device.
6. The split-type door lock structure according to claim 1, characterized in that, The split cover includes a first cover and a second cover. The first cover is detachably connected to the lock body assembly and covers the outer surface of the lock body assembly. The second cover is detachably connected to the actuator and covers the outer surface of the actuator.
7. The split-type door lock structure according to claim 6, characterized in that, The first cover is provided with a first latching part, and the lock body assembly is provided with a third latching part, and the first latching part is engaged with the third latching part.
8. The split-type door lock structure according to claim 7, characterized in that, The first latching part is a hook, and the third latching part is a slot.
9. The split-type door lock structure according to claim 6, characterized in that, The second cover is provided with a second latching part, and the transmission device is provided with a fourth latching part, and the second latching part is engaged with the fourth latching part.
10. The split-type door lock structure according to claim 9, characterized in that, The second latching part is a hook, and the fourth latching part is a slot.