Tailgate limiting structure and vehicle
By designing the coupling and disengagement of the protrusions and recesses in the tailgate limiting structure, the instability and abnormal noise problems of the side-opening tailgate system are solved, achieving the effects of lightweighting and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAIC GRP ORV CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-21
AI Technical Summary
The existing side-opening tailgate system has complex, heavy, and costly limiting structure components, which leads to insufficient system stability and causes problems such as sheet metal weld cracking and abnormal noise.
Design a tailgate limiting structure, including a limiting structure body end assembly and a limiting structure door end assembly. By coupling and disengaging the protrusions and recesses, appropriate holding force is provided to ensure the stability of the tailgate system, and the cost is reduced through a simple structure and lightweight design.
This achieved stability and noise-free tailgate system, reduced parts development and vehicle costs, and simplified structural design.
Smart Images

Figure CN224532480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle engineering technology, and in particular to a tailgate limiting structure and vehicle. Background Technology
[0002] During vehicle manufacturing testing, it was discovered that the constraints of the side-opening tailgate system directly affect its overall stability. When the system's holding force is insufficient, it can easily lead to a series of problems, including cracking of sheet metal welds and abnormal noises when opening and closing the door, all of which significantly reduce the user experience.
[0003] Currently, most vehicles on the market that use side-opening tailgates employ a "double-insertion" design for their tailgate locking mechanism. This traditional structure suffers from drawbacks such as complex parts, large size, and heavy weight, resulting in high production costs. In contrast, the new solution offers advantages such as simple structure and ease of molding, while also providing a more reliable retaining force for the tailgate system. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide a tailgate limiting structure, which solves the problem of tailgate limiting structure.
[0005] This utility model provides a tailgate limiting structure, which can provide appropriate holding force for the tailgate system, ensure the stability of the tailgate system, and ensure that there are no quality problems during the use of the tailgate; at the same time, the structure is simple and lightweight, reducing the development cost of parts and the cost per vehicle.
[0006] The structure of the limiting block has been optimized to reduce its weight, cost, and layout space.
[0007] To achieve the above objectives, this utility model provides a tailgate limiting structure, including a limiting structure body end assembly and a limiting structure door end assembly. Either the limiting structure body end assembly or the limiting structure door end assembly is installed on the body side, and the other is installed on the door side. When the door is closed or opened, the limiting structure body end assembly and the limiting structure door end assembly are coupled and disengaged from each other through protrusions and recesses to form a stabilizing force to ensure the tailgate system.
[0008] Optionally, the limiting structure body end assembly is installed on the body side, and the limiting structure door end assembly is installed on the door side.
[0009] Optionally, the limiting structure body end assembly includes a first limiting structure frame and a first mounting bolt, and the first limiting structure frame has a protrusion in the middle.
[0010] Optionally, the middle part of the first limiting structure frame is provided with a protrusion that is integrally bent and formed with the first limiting structure frame.
[0011] Optionally, the outer surface of the protrusion is provided with a composite material covering structure layer that wraps around the outer surface of the protrusion.
[0012] Optionally, the limiting structure door end assembly includes a second limiting structure frame and a second mounting bolt, and the middle part of the second limiting structure frame is provided with a recessed part that matches and engages with the protrusion.
[0013] Optionally, the middle part of the second limiting structure frame is provided with a recessed part that is integrally bent and formed with the second limiting structure frame.
[0014] Optionally, the inner cavity of the recessed portion is further provided with a buffer block.
[0015] A vehicle including the aforementioned tailgate limiting structure.
[0016] Optionally, one of the above technical solutions has the following advantages or beneficial effects:
[0017] The combined structure of the limiting structure body end assembly and the limiting structure door end assembly in this embodiment of the utility model provides appropriate holding force for the tailgate system through the mutual coupling and disengagement of the protrusion and recess. This not only reduces the abnormal noise that occurs when the tailgate is unlocked, but also effectively avoids the abnormal noise that occurs when the tailgate is closed. Attached Figure Description
[0018] Figure 1 A schematic diagram of the limiting structure vehicle body end assembly provided in an embodiment of this utility model;
[0019] Figure 2 A perspective view of the vehicle body end assembly of the limiting structure provided in an embodiment of this utility model;
[0020] Figure 3 A schematic diagram of the limiting structure door end assembly provided in an embodiment of this utility model;
[0021] Figure 4 for Figure 1 Installation diagram for mounting on the vehicle body;
[0022] Figure 5 for Figure 2 Installation diagram for mounting on the vehicle body;
[0023] Figure 6 for Figure 1 and Figure 2 A schematic diagram of the mutually coupled assembly. Detailed Implementation
[0024] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0025] In vehicles with side-opening tailgates, the tailgate limiting structure often adopts a "double-insertion" design. This structure has complex components and relatively high costs. During vehicle manufacturing and testing, the constraints of the side-opening tailgate system have a significant impact on its stability. Insufficient holding force in the side-opening tailgate system can cause problems.
[0026] like Figure 1 , 3 As shown in Figure 6, this embodiment of the present invention provides a tailgate limiting structure, including a limiting structure body end assembly 1 and a limiting structure door end assembly 2. Either the limiting structure body end assembly 1 or the limiting structure door end assembly 2 is installed on the body side, and the other is installed on the door side. When the door is closed or opened, the limiting structure body end assembly 1 and the limiting structure door end assembly 2 are coupled and disengaged through a protrusion 12 and a recess 22 to form a stabilizing force for the tailgate system. The second limiting structure frame 21 is a thick steel plate stamping part with a simple forming process. The second limiting structure frame 21 is designed with mounting holes matching the buffer block 24 on the corresponding side of the door. The mounting holes are large holes, and the second mounting nut 23 is placed in a nut box, allowing for adjustment of the door limiting structure in the Z and X directions, satisfying the dimensional error adjustment that occurs during the vehicle welding process.
[0027] The preferred limiting structure body end assembly 1 is installed on the side of the vehicle body, and the limiting structure door end assembly 2 is installed on the side of the door. This utility model is described below with the limiting structure body end assembly 1 installed on the side of the vehicle body and the limiting structure door end assembly 2 installed on the side of the door as an example. Of course, the limiting structure body end assembly 1 can also be installed on the side of the vehicle body, and the limiting structure door end assembly 2 can also be installed on the side of the door.
[0028] The limiting structure body end assembly 1 includes a first limiting structure frame 11 and first mounting bolts 13, and the first limiting structure frame 11 has a protrusion 12 in the middle. Preferably, there are two first mounting bolts 1, symmetrically installed at both ends of the first limiting structure frame 11 of the limiting structure body end assembly 1. Mounting nuts, threaded to the mounting bolts, are also provided on both the body and door sides. Alternatively, welding or other methods can be used to fix the limiting structure body end assembly 1 and the limiting structure door end assembly 2 together.
[0029] like Figure 1 and2 As shown, in this embodiment, the first limiting structure skeleton 11 preferably has a protrusion 12 in the middle, which is integrally bent and formed with the first limiting structure skeleton 11. The protrusion 12 forms an arch shape, and then POM material is wrapped around the outer surface of the arch. The outer surface of the protrusion 12 is provided with a composite material covering structure layer 14 that wraps the outer surface of the protrusion 12. The composite material covering structure layer 14 is integrally injection molded with the first limiting structure skeleton.
[0030] The limiting structure door end assembly 2 includes a second limiting structure frame 21 and a second mounting bolt 23. The middle part of the second limiting structure frame 21 is provided with a recessed part 22 that matches and engages with the protrusion 12. In addition, in order to make it easier for the limiting structure body end assembly 1 and the limiting structure door end assembly 2 to couple with each other, this embodiment preferably sets the outer contour of the protrusion 12 and the inner contour of the recessed part 22 into an isosceles trapezoidal structure, or into the same / similar wedge structure, so that the protrusion 12 can engage and disengage from the recessed part 22 more smoothly.
[0031] The second limiting structure frame 21 has a recessed portion 2 integrally bent into shape at its center. The recessed portion 2 is also arched, matching the shape of the protrusion 12, thus facilitating smooth coupling. Furthermore, a buffer block 24 is provided within the cavity of the recessed portion 22, for example... Figure 3 The bottom of the interlocking end of the inner cavity of the recessed part 22 is provided. When the protrusion 12 is matched and embedded in the recessed part 22, the protrusion 12 and the recessed part 22 can be blocked by the buffer block 24, which plays a buffering role. The buffer block 24 can be made of rubber.
[0032] like Figure 4 and 5 As shown, a vehicle is designed, including the aforementioned tailgate limiting structure. The limiting structure body end assembly 1 consists of a limiting structure frame (body side), two mounting bolts 13, and a composite material covering structure 14. The limiting structure frame (body side) has a bent protrusion in the middle, which is a thick steel plate stamping part with a simple molding process. The composite material covering structure layer 14 is mainly made of POM material, and the composite material covering structure layer 14 is injection molded integrally with the limiting structure frame (body side). The limiting structure body end assembly 1 is mounted on the vehicle body by two mounting bolts 13. The corresponding structure of the vehicle body has a matching mounting structure, which has a first mounting nut that matches the first mounting bolt 13.
[0033] The limiting structure door end assembly 2 consists of a limiting structure frame (door side), a second mounting bolt 23, and a buffer block 24. The corresponding structure of the door has a matching mounting structure, which has a second mounting nut that matches the second mounting bolt 23. At the same time, this structure can provide appropriate holding force for the tailgate system, ensuring the stability of the tailgate system and ensuring that there are no quality problems during the use of the tailgate. The structure is simple and lightweight, reducing the development cost of parts and the cost per vehicle.
[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A tailgate limiting structure, characterized in that, The system includes a body-side limiting structure assembly and a door-side limiting structure assembly, with one of the body-side limiting structure assembly and the other installed on the door side. When the door is closed or opened, the body-side limiting structure assembly and the door-side limiting structure assembly are coupled and disengaged from each other through protrusions and recesses to form a stabilizing force for the tailgate system.
2. The tailgate limiting structure according to claim 1, characterized in that, The limiting structure body end assembly is installed on the side of the vehicle body, and the limiting structure door end assembly is installed on the side of the door.
3. The tailgate limiting structure according to claim 2, characterized in that, The limiting structure body end assembly includes a first limiting structure frame and a first mounting bolt, and the first limiting structure frame has a protrusion in the middle.
4. The tailgate limiting structure according to claim 3, characterized in that, The first limiting structure skeleton has a protrusion in the middle that is integrally bent into shape with the first limiting structure skeleton.
5. The tailgate limiting structure according to claim 1, characterized in that, The outer surface of the protrusion is provided with a composite material coating layer that covers the outer surface of the protrusion.
6. The tailgate limiting structure according to claim 5, characterized in that, The door end assembly of the limiting structure includes a second limiting structure frame and a second mounting bolt, and the middle part of the second limiting structure frame is provided with a recessed part that matches and engages with the protrusion.
7. The tailgate limiting structure according to claim 6, characterized in that, The second limiting structure frame has a recessed part in the middle that is integrally bent into shape with the second limiting structure frame.
8. The tailgate limiting structure according to claim 7, characterized in that, The inner cavity of the recessed part is also provided with a buffer block.
9. A vehicle, characterized in that, Includes the tailgate limiting structure as described in any one of claims 1-8.