Car door lock catch fixing structure

By designing a door lock fixing structure and utilizing components such as an adjusting plate, a limiting slot, and fastening bolts, the lock's installation position can be flexibly adjusted, solving the problem that the lock cannot be adjusted to the correct position in existing technologies, improving installation accuracy and stability, and simplifying the installation process.

CN223647584UActive Publication Date: 2025-12-09GUANGDONG ROAD QUAN AUTO INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520251465.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-09
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

The existing door latch fixing structure cannot be adjusted to the correct position, resulting in excessive gaps in the door, making it difficult to accommodate the door lock position and flexibly adjust the latch installation position.

Method used

A door latch fixing structure was designed, including a latch fixing plate, an adjusting plate, a limiting slot, a connecting plate, fastening bolts, a positioning rod and other components. The adjusting plate can be finely adjusted by raising and lowering through the guide block and the sliding groove, and the latch can be fixed in the appropriate position by the cooperation of the limiting slot and the fastening bolt.

Benefits of technology

It enables flexible adjustment of the latch's installation position, avoids excessive gaps in the car door, improves the latch's installation accuracy and stability, simplifies welding work, and enhances installation convenience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223647584U_ABST
    Figure CN223647584U_ABST
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Abstract

The utility model discloses a car door lock catch fixing structure, belongs to the technical field of car door lock catches, and mainly solves the problems that in the prior art, a fixed structure is usually adopted, the position of a lock catch cannot be adjusted in place, the lock catch is difficult to adapt to the position of a door lock, the mounting position of the lock catch is inconvenient to change, and a car door gap is prevented from being too large. The lock catch fixing plate is welded to the front face of the vehicle body outer plate, a side surrounding plate is fixedly connected to the surface of one side of the lock catch fixing plate and fixedly welded to the vehicle body outer plate, an adjusting plate is movably arranged on the front face of the lock catch fixing plate and is in a U shape, and a plurality of limiting clamping grooves are formed in the front face of the adjusting plate at equal intervals. Two connecting plates are fixedly installed on the front face of the lock catch fixing plate through fastening bolts and located on the two sides of the adjusting plate correspondingly, and positioning rods are fixedly connected to the front faces of the connecting plates.
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Description

Technical Field

[0001] This utility model relates to the field of car door latch technology, and more specifically, to a car door latch fixing structure. Background Technology

[0002] During the assembly of a car, the door latch is assembled to the car body via a latch nut plate. The latch nut plate is usually welded to the car body by projection welding nuts, providing a fixed and non-adjustable mounting point for the door latch. Therefore, a latch fixing structure is required to fix the door latch in place.

[0003] However, there are various types of locking and fixing structures in the existing technology. For example, utility model patent CN205259748U involves a door lock fixing plate structure. This utility model achieves the positioning of the plate during installation by cooperating with the first positioning hole and the second positioning hole. At the same time, since the second positioning hole is a strip hole, after positioning the first positioning hole, rotating the plate can more quickly position the second positioning hole and achieve accurate installation of the plate.

[0004] However, the latch fixing structure is usually a fixed structure, and the latch position cannot be adjusted to the correct position, making it difficult to adapt to the position of the door lock. It is also inconvenient to change the installation position of the latch to prevent excessive gaps in the car door. To avoid this phenomenon, it is essential to design an adjustable latch fixing structure. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To achieve the above objectives, this utility model provides a door lock latch fixing structure, which is achieved by the following specific technical means:

[0007] A door latch fixing structure includes a latch fixing plate, which is welded to the front of the vehicle body outer panel. A side panel is fixedly connected to one side surface of the latch fixing plate and welded to the vehicle body outer panel. An adjustment plate is movably provided on the front of the latch fixing plate, and the adjustment plate is U-shaped. Multiple limiting slots are equidistantly provided on the front of the adjustment plate. Two connecting plates are fixedly installed on the front of the latch fixing plate by fastening bolts, and the two connecting plates are located on both sides of the adjustment plate. A positioning rod is fixedly connected to the front of the connecting plates.

[0008] Preferably, the positioning rod is pressed against the front of the adjusting plate so that the positioning rod is engaged in the limiting slot. The adjusting plate is used to fine-tune the installed latch to achieve a good fit.

[0009] Preferably, the front of the locking plate is fixedly connected to two guide blocks, and the two guide blocks are arranged symmetrically. The top and bottom of the locking plate are provided with sliding grooves, and the sliding grooves are slidably connected to the guide blocks.

[0010] Preferably, the front of the adjusting plate is provided with two connecting seats, which are arranged symmetrically, and both connecting seats have threaded holes on their front sides.

[0011] Preferably, both threaded holes are threaded with connecting bolts, and a mounting plate is fixed to the front of the connecting plate by the connecting bolts. The front of the mounting plate has two insertion holes, which are aligned with the threaded holes, and the two connecting bolts pass through the insertion holes.

[0012] Preferably, a mounting plate has a fixing seat on its front side, and a locking ring is fixedly connected to the front side of the fixing seat.

[0013] Preferably, the front of the locking plate is fixedly connected with a reinforcing flange, and the back of the locking plate has two through holes, which are aligned with the threaded holes.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] The latch fixing structure includes an adjusting plate, a limiting slot, a connecting plate, fastening bolts, a positioning rod, a connecting seat, threaded holes, a guide block, and a sliding groove. The guide block and sliding groove guide the moving adjusting plate, which in turn moves up and down, causing the fixed latch to be finely adjusted. Depending on the door lock position, the adjusting plate is finely adjusted to the corresponding position, and the fastening bolts are tightened to fix the connecting plate and positioning rod. This allows the positioning rod to engage with the appropriate limiting slot, fixing the adjusting plate in place and adapting it to the door lock position. This facilitates changes in the latch's installation position and prevents excessive gaps in the car door. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a partial structural schematic diagram of the present invention;

[0021] Figure 5 A schematic diagram of the door latch structure;

[0022] Figure 6 This is a schematic diagram of the installation of the door latch structure.

[0023] In the diagram: 1. Locking plate; 2. Side panel; 3. Outer body panel; 4. Adjustment plate; 5. Limiting slot; 6. Connecting plate; 7. Fastening bolt; 8. Positioning rod; 9. Connecting seat; 10. Threaded hole; 11. Guide block; 12. Slide groove; 13. Connecting bolt; 14. Insertion hole; 15. Mounting plate; 16. Fixing seat; 17. Locking ring; 18. Reinforcing flange; 19. Through opening. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0027] like Figure 1 , Figure 2 as well as Figure 3As shown, this is a schematic diagram of the door latch fixing structure in this embodiment. The latch fixing structure in this embodiment is used to fix the door latch to the vehicle body, so as to lock the door using the door latch. The latch fixing structure includes a latch fixing plate 1 and an adjusting plate 4. The adjusting plate 4 is used to fine-tune the installed latch to achieve a good fit. The latch fixing plate 1 is welded to the front of the vehicle body outer panel 3. A side panel 2 is fixedly connected to one side surface of the latch fixing plate 1, and the side panel 2 is welded to the vehicle body outer panel 3. A reinforcing flange 18 is fixedly connected to the front of the latch fixing plate 1. The reinforcing flange 18 is used to further improve the structural strength of the latch fixing plate 1 and improve its resistance to deformation. The adjusting plate 4 is movably provided on the front of the latch fixing plate 1. The adjusting plate 4 is U-shaped. The up-and-down moving adjusting plate 4 can drive the fixedly installed latch to perform up-and-down fine-tuning and position the adjusted adjusting plate 4 to fix its position. The installation position of the latch can be changed to adapt to the position of the door lock and avoid the situation of excessive gap in the door.

[0028] In addition, such as Figure 2 and Figure 3 As shown, in this embodiment, the front of the adjusting plate 4 is provided with multiple limiting slots 5 at equal intervals. The front of the locking plate 1 is fixedly installed with two connecting plates 6 by fastening bolts 7, and the two connecting plates 6 are located on both sides of the adjusting plate 4. The front of the connecting plate 6 is fixedly connected with a positioning rod 8. The positioning rod 8 is pressed against the front of the adjusting plate 4 so that the positioning rod 8 is inserted into the limiting slot 5. According to the position of the door lock, the adjusting plate 4 is finely adjusted to the corresponding position. The fastening bolts 7 are tightened to fix the connecting plate 6 and the positioning rod 8, so that the positioning rod 8 is inserted into the appropriate limiting slot 5, and the adjusting plate 4 is positioned and fixed, thus completing the fixing operation of the lock.

[0029] It is worth noting that in this embodiment, the front of the adjusting plate 4 is provided with two connecting seats 9, and the two connecting seats 9 are arranged symmetrically. The front of the two connecting seats 9 is provided with threaded holes 10. The two connecting seats 9 are directly set on the adjusting plate 4 and have threaded holes 10, which are used to replace the nuts welded to the surface of the existing nut plate. There is no need to weld the nuts, which reduces the welding work and makes it more convenient to use. The back of the locking plate 1 has two through holes 19, and the through holes 19 are aligned with the threaded holes 10.

[0030] like Figure 4 As shown in this embodiment, in order to better guide the vertically moving adjustment plate 4, two guide blocks 11 are fixedly connected to the front of the locking plate 1, and the two guide blocks 11 are arranged symmetrically. The top and bottom of the locking plate 1 are provided with sliding grooves 12, and the sliding grooves 12 are slidably connected to the guide blocks 11. When the adjustment plate 4 moves up and down, the sliding guiding effect between the guide blocks 11 and the sliding grooves 12 is used to guide the moving adjustment plate 4, so as to ensure the stability of the adjustment plate 4 during the movement.

[0031] like Figure 5 As shown, in this embodiment, the two threaded holes 10 are both threaded with connecting bolts 13. The front of the connecting plate 6 is fixed with a mounting plate 15 by the connecting bolts 13. The front of the mounting plate 15 has two insertion holes 14. The connecting bolts 13 pass through the insertion holes 14. Align the insertion holes 14 on the surface of the mounting plate 15 with the threaded holes 10, and pass the two connecting bolts 13 through the insertion holes 14 to fix the latch on the vehicle body.

[0032] like Figure 6 As shown, in this embodiment, a fixing seat 16 is provided on the front of the mounting plate 15, and a locking ring 17 is fixedly connected to the front of the fixing seat 16. After the mounting plate 15 is fixed, the locking ring 17 can be fixedly installed.

[0033] 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 door latch fixing structure, comprising a latch fixing plate (1), the latch fixing plate (1) being welded to the front of a vehicle body outer panel (3), a side panel (2) being fixedly connected to one side surface of the latch fixing plate (1), and the side panel (2) being welded and fixed to the vehicle body outer panel (3), characterized in that: An adjustment plate (4) is movably provided on the front of the locking plate (1), and the adjustment plate (4) is U-shaped. Multiple limit slots (5) are equidistantly provided on the front of the adjustment plate (4). Two connecting plates (6) are fixedly installed on the front of the locking plate (1) by fastening bolts (7), and the two connecting plates (6) are located on both sides of the adjustment plate (4). A positioning rod (8) is fixedly connected to the front of the connecting plate (6).

2. The door lock latch fixing structure according to claim 1, characterized in that: The positioning rod (8) is pressed against the front of the adjusting plate (4) so ​​that the positioning rod (8) is inserted into the limiting slot (5). The adjusting plate (4) is used to fine-tune the installed latch to achieve a good fit.

3. The door lock latch fixing structure according to claim 1, characterized in that: The front of the locking plate (1) is fixedly connected to two guide blocks (11), and the two guide blocks (11) are arranged symmetrically. The top and bottom of the locking plate (1) are provided with sliding grooves (12), and the sliding grooves (12) are slidably connected to the guide blocks (11).

4. The door lock latch fixing structure according to claim 1, characterized in that: The front of the adjustment plate (4) is provided with two connecting seats (9), and the two connecting seats (9) are arranged symmetrically. The front of the two connecting seats (9) is provided with threaded holes (10).

5. The door lock latch fixing structure according to claim 4, characterized in that: Both threaded holes (10) are threaded with connecting bolts (13). The front of the connecting plate (6) is fixed with a mounting plate (15) by the connecting bolts (13). The front of the mounting plate (15) has two insertion holes (14), and the insertion holes (14) are aligned with the threaded holes (10). The two connecting bolts (13) pass through the insertion holes (14).

6. The door lock latch fixing structure according to claim 5, characterized in that: The mounting plate (15) has a mounting base (16) on its front side, and a locking ring (17) is fixedly connected to the front side of the mounting base (16).

7. The door lock latch fixing structure according to claim 1, characterized in that: The front of the locking plate (1) is fixedly connected with a reinforcing flange (18), and the back of the locking plate (1) has two through holes (19), and the through holes (19) are aligned with the threaded holes (10).

Citation Information

Patent Citations

  • Car gate lock fixed plate structure

    CN205259748U