Commercial vehicle front door lock catch mounting plate convenient to disassemble and assemble
By combining the lower and upper mounting plates and using bolts to fix the latch, the problem of inconvenient latch disassembly in existing technologies is solved, enabling efficient installation and disassembly of the latch and improving the ease of replacement and installation stability of the latch.
Patent Information
- Application Number
- CN202520349762.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In the existing technology, the latches of the front door latch mounting plate of commercial vehicles are fixed by a riveting process, which makes subsequent disassembly inconvenient and affects the replacement of the latches.
The system employs a combination structure of a lower mounting plate and an upper mounting plate, which are fixed with bolts. The lower mounting plate is first fixed in the locking position, and the locking is pre-clamped between the upper and lower mounting plates. Subsequently, the upper and lower mounting plates are fixed with bolts, achieving efficient installation and removal of the locking.
It enables efficient installation and removal of the latch, improves the ease of latch replacement, reduces production costs, and enhances installation stability and comfort.
Smart Images

Figure CN223893975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of front door latch installation for commercial vehicles, specifically a front door latch mounting plate for commercial vehicles that is easy to install and remove. Background Technology
[0002] The front door latch mounting plate of a commercial vehicle is a key component in the vehicle's body structure. It is specifically designed to install and secure the latching device of the front door of the commercial vehicle. This mounting plate is usually made of high-strength, corrosion-resistant materials to ensure the stability and durability of the latch. It is located in a specific position on the door frame and, by matching with the latching mechanism inside the door, enables reliable locking and unlocking of the door. The presence of the front door latch mounting plate of a commercial vehicle not only enhances vehicle safety but also ensures smooth opening and closing of the door, providing passengers with a more comfortable and convenient riding experience.
[0003] Chinese patent CN204055980U discloses a locking mounting plate for an integrated buffer block. The locking mounting plate has a flange on a partial edge, and a buffer block mounting hole is provided on the flange. A buffer block is installed at the buffer block mounting hole. Two latches are provided on the locking mounting plate, which are riveted into the two latch riveting holes of the locking mounting plate using a riveting process. This method is simple, efficient, and structurally sound. The flange on the partial edge of the locking mounting plate has pre-formed buffer block mounting holes, and the buffer block is engaged in the buffer block mounting holes through its own buffer block slots. Installation is simple, eliminating the need for a buffer block reinforcing plate and its welding process, thus improving production efficiency and reducing production costs.
[0004] When fixing the latch in the aforementioned patented latch mounting plate, the latch is fixed to the latch mounting plate by a riveting process. However, after the latch is fixed by the riveting process, it is not convenient to disassemble it later, which affects the replacement of the latch. Utility Model Content
[0005] The purpose of this utility model is to provide a commercial vehicle front door latch mounting plate that is easy to install and remove. After bolts are passed through the mounting holes inside the lower mounting plate, the lower mounting plate is pre-fixed. Subsequently, after the latch is placed on the upper part of the lower mounting plate, the upper mounting plate presses down and temporarily fixes the latch. Finally, bolts are passed through the mounting holes inside the upper mounting plate to fix both the upper and lower mounting plates, thus fixing the latch. The lower and upper mounting plates are set independently, which facilitates the installation and removal of the latch and solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a commercial vehicle front door latch mounting plate that is easy to install and remove, including a lower mounting plate. The upper sides of the lower mounting plate are recessed with extension grooves, and the other ends of the two extension grooves are recessed with mounting grooves. An upper mounting plate is provided on the upper part of the lower mounting plate. A first pressing piece is provided on the upper mounting plate facing the extension grooves, and a second pressing piece is provided on the upper mounting plate facing the extension grooves.
[0007] Preferably, one end of the lower mounting plate extends to form an extension plate, and a movable cavity is provided through the interior of the extension plate, with a buffer block provided inside the movable cavity.
[0008] Preferably, the lower mounting plate has a recessed cavity at the middle position facing the upper mounting plate, and a second reinforcing plate is provided on the upper end of the cavity facing the extension plate.
[0009] Preferably, the second reinforcing piece is welded and fixed to the upper mounting plate.
[0010] Preferably, the buffer block is made of rubber.
[0011] Preferably, a protruding block is provided inside the combined cavity on the side facing the mounting groove, and the outside of the protruding block is connected to the internal slot of the second reinforcing piece.
[0012] Preferably, both the upper mounting plate and the lower mounting plate have through mounting holes inside.
[0013] Preferably, the lower mounting plate has an adapter groove recessed at the upper end corresponding to the mounting hole, and the upper mounting plate has a first reinforcing piece extending toward the adapter groove.
[0014] Preferably, a spring is provided between the buffer block and the inner wall of the movable cavity.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In this invention, when fixing and installing the latch, the lower mounting plate and the upper mounting plate are installed sequentially through the mounting holes. The lower mounting plate can be directly fixed by bolts passing through the mounting holes. The upper mounting plate is first slidably inserted into the upper part of the lower mounting plate. During the assembly of the upper and lower mounting plates, the latch is pre-clamped. After the mounting holes inside the upper and lower mounting plates are simultaneously fixed by bolts, the latch clamped between the upper and lower mounting plates is secured. The fixing method is efficient, and the assembly is completed by sliding the upper mounting plate and passing through the bolts. During disassembly, after removing the bolts at the mounting holes inside the upper mounting plate by rotation, the upper mounting plate can be slid laterally to disassemble the upper and lower mounting plates. The latch can then be directly removed and replaced. The fixing method is efficient, and the disassembly process is also efficient. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall external structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the internal structure of the movable cavity of this utility model;
[0019] Figure 3 This is a schematic diagram showing the positional relationship of the first pressing piece of this utility model;
[0020] Figure 4 This is a cross-sectional view of the internal structure of the combined cavity of this utility model;
[0021] Figure 5 This is an exploded view of the latch installation position of this utility model;
[0022] Figure 6 This is a schematic diagram of the latch installation position of this utility model;
[0023] Figure 7 This is the state of the upper mounting plate after it has been pressed down in this utility model;
[0024] Figure 8 This is a schematic diagram showing the positional relationship of the second reinforcing piece after the upper mounting plate of this utility model is pressed down;
[0025] Figure 9 This is a schematic diagram showing the positional relationship of the second pressing piece of this utility model.
[0026] In the diagram: 1. Lower mounting plate; 2. Extension plate; 3. Buffer block; 4. Lock; 5. Upper mounting plate; 6. Mounting hole; 7. First reinforcing piece; 8. Movable cavity; 9. Spring; 10. First pressing piece; 11. Mounting groove; 12. Extension groove; 13. Adaptor groove; 14. Combination cavity; 15. Protruding block; 16. Second pressing piece; 17. Second reinforcing piece. Detailed Implementation
[0027] The present invention will be further described below with reference to specific embodiments.
[0028] Example 1
[0029] like Figure 1 and Figure 2 As shown in the figure, a commercial vehicle front door latch mounting plate that is easy to install and remove in this embodiment includes a lower mounting plate 1. An extension plate 2 is provided at one end of the lower mounting plate 1. When the extension plate 2 extends to the front end of the lower mounting plate 1, it will be directly facing the closed position of the door. When the door closes, it will generate an impact. The extension plate 2 can cushion the impact to avoid the collision from generating a lot of noise. In order to absorb and buffer the noise generated by the impact, a movable cavity 8 is provided through the interior of the extension plate 2. A buffer block 3 is provided inside the movable cavity 8. The buffer block 3 extends from the movable cavity 8 to the outside of the extension plate 2. The impact generated towards the extension plate 2 will contact the buffer block 3. The buffer block 3 is made of rubber to avoid the collision from generating a lot of noise.
[0030] In order to improve the buffering capacity of the buffer block 3, a spring 9 is provided between the buffer block 3 and the inner wall of the movable cavity 8. The elasticity of the spring 9 can directly offset part of the impact force, and offsetting part of the impact force can prevent the collision from generating a large noise.
[0031] To facilitate securing latch 4, such as Figure 3 and Figure 4 As shown, both sides of the upper end of the lower mounting plate 1 are recessed with extension grooves 12, and the other end of each extension groove 12 is provided with a recessed mounting groove 11. When the latch 4 is installed and fixed, it needs to be actively placed outside the mounting groove 11, and the protruding structure reserved outside the latch 4 for installation and restriction is embedded inside the extension groove 12.
[0032] To improve the efficiency of the locking latch 4, such as Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, an upper mounting plate 5 is provided at the upper end of the lower mounting plate 1. The clamping of the upper mounting plate 5 and the lower mounting plate 1 can temporarily fix the latch 4. A first pressing piece 10 is provided on the upper mounting plate 5 facing the extension groove 12, and a second pressing piece 16 is provided on the upper mounting plate 5 facing the extension groove 12. When the upper mounting plate 5 and the lower mounting plate 1 are combined, the first pressing piece 10 will move towards the inside of the mounting groove 11, and the second pressing piece 16 will move towards the extension groove 12. The clamping of the two positions can temporarily fix the latch 4, and the two clamping positions are also the subsequent fixing positions of the latch 4.
[0033] To improve the tightness of the connection between the upper mounting plate 5 and the lower mounting plate 1, such as Figure 8As shown, a combined cavity 14 is recessed in the middle of the lower mounting plate 1 facing the upper mounting plate 5. A second reinforcing piece 17 is provided on the side of the upper end of the combined cavity 14 facing the extension plate 2, and the second reinforcing piece 17 is welded and fixed to the upper mounting plate 5. After the upper mounting plate 5 and the lower mounting plate 1 are combined, the second reinforcing piece 17 will be embedded in the combined cavity 14. A protruding block 15 is provided inside the combined cavity 14 on the side facing the mounting groove 11, and the outside of the protruding block 15 is connected to the internal slot of the second reinforcing piece 17. When the second reinforcing piece 17 moves laterally, the second reinforcing piece 17 will be locked outside the protruding block 15. The second reinforcing piece 17 being locked inside the combined cavity 14 can improve the stability of the combination of the upper mounting plate 5 and the lower mounting plate 1.
[0034] like Figure 1 and Figure 2 As shown, both the upper mounting plate 5 and the lower mounting plate 1 have mounting holes 6 through them. First, the lower mounting plate 1 is fixed by passing a bolt through the mounting hole 6 in the lower mounting plate 1. Then, the upper mounting plate 5 is slid to temporarily fix the latch 4. After that, the bolt passes through the mounting hole 6 and fixes the upper mounting plate 5. The latch 4 is completely fixed by fixing the upper mounting plate 5 and the lower mounting plate 1 at the same time.
[0035] To prevent bending between the lower mounting plate 1 and the upper mounting plate 5, the lower mounting plate 1 is recessed at the upper end of the mounting hole 6, and the upper mounting plate 5 is provided with a first reinforcing piece 7 extending toward the adapter groove 13.
[0036] Working principle: When the mounting plate is used to install the latch 4, one of the bolts passes through the mounting hole 6 inside the lower mounting plate 1, so that the lower mounting plate 1 is first fixed in the mounting position of the latch 4. The fixed position of the latch 4 is placed in the mounting groove 11, and the protruding structure on the outside of the latch 4 is embedded in the extension groove 12. The first reinforcing piece 7 at the lower end of the upper mounting plate 5 slides toward the adapter groove 13, and the second reinforcing piece 17 extends into the combination cavity 14. The first pressing piece 10 moves toward the mounting groove 11 and presses against the upper end of the latch 4. The second pressing piece 16 moves toward the extension groove 12 and finally moves to the upper end of the extension groove 12. The second reinforcing piece 17 moves laterally toward the protruding block 15 in the combination cavity 14. The protruding block 15 finally gets stuck in the middle of the second reinforcing piece 17. The first reinforcing piece 7 finally gets stuck in the adapter groove 13. One of the bolts passes through the mounting hole 6 inside the upper mounting plate 5, so that the upper mounting plate 5 combined with the lower mounting plate 1 is fixed in the mounting position of the latch 4.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] 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.
Claims
1. A commercial vehicle front door latch mounting plate that is easy to install and remove, comprising a lower mounting plate (1), characterized in that, The lower mounting plate (1) has recessed extension grooves (12) on both sides of its upper interior. The other end of each extension groove (12) has a recessed mounting groove (11). The upper end of the lower mounting plate (1) has an upper mounting plate (5). The upper mounting plate (5) has a first pressing piece (10) facing the extension groove (12) and a second pressing piece (16) facing the extension groove (12).
2. The easily detachable and assembleable front door lock mounting plate for commercial vehicles according to claim 1, characterized in that, An extension plate (2) is provided at one end of the lower mounting plate (1), and a movable cavity (8) is provided inside the extension plate (2), and a buffer block (3) is provided inside the movable cavity (8).
3. The easily detachable and assembleable front door lock mounting plate for commercial vehicles according to claim 2, characterized in that, The lower mounting plate (1) is recessed in the middle of the upper mounting plate (5) and a combination cavity (14) is provided. The upper end of the combination cavity (14) facing the extension plate (2) is provided with a second reinforcing piece (17).
4. The easily detachable and assembleable front door lock mounting plate for commercial vehicles according to claim 3, characterized in that, The second reinforcing plate (17) is welded and fixed to the upper mounting plate (5).
5. A commercial vehicle front door latch mounting plate that is easy to install and remove according to claim 2, characterized in that, The buffer block (3) is made of rubber.
6. A commercial vehicle front door latch mounting plate that is easy to install and remove according to claim 3, characterized in that, The inside of the combined cavity (14) facing the mounting groove (11) is provided with a protruding block (15), and the outside of the protruding block (15) is connected to the internal slot of the second reinforcing piece (17).
7. A commercial vehicle front door latch mounting plate that is easy to install and remove according to claim 1, characterized in that, Both the upper mounting plate (5) and the lower mounting plate (1) have mounting holes (6) that penetrate through their interiors.
8. A commercial vehicle front door latch mounting plate that is easy to install and remove according to claim 7, characterized in that, The lower mounting plate (1) is recessed at the upper end of the mounting hole (6) and has an adapter groove (13). The upper mounting plate (5) extends toward the adapter groove (13) and has a first reinforcing piece (7).
9. A commercial vehicle front door latch mounting plate that is easy to install and remove according to claim 2, characterized in that, A spring (9) is provided between the buffer block (3) and the inner wall of the movable cavity (8).
Citation Information
Patent Citations
Lock catch mounting plate integrating buffer block
CN204055980U