Inner plate structure for reinforcing bent pipe
By replacing insert injection molding solution by bending the pipe reinforcement structure, the problem of high cost of the inner plate of the composite tailgate is solved, and the effect of reducing costs and simplifying installation while ensuring strength is achieved.
Patent Information
- Application Number
- CN202421793899.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The metal reinforcement of the existing composite tailgate inner panel has large size and high precision, which leads to excessive manufacturing costs and is difficult to meet customer performance requirements while reducing costs.
The bent pipe reinforcement structure is adopted, including bent pipe fittings, rod reinforcements, hinge reinforcements and pre-installed brackets, which are connected into the assembly by welding and installed in the window frame area of the tailgate inner plate by bolts or screws, instead of insert injection molding scheme.
On the premise of ensuring the strength and performance of the tailgate, the production cost of composite tailgate is reduced, the competitiveness of the product is improved, and the installation process is simplified.
Smart Images

Figure CN223187329U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile tailgates and relates to an inner plate structure reinforced by a bent pipe. Background Art
[0002] As fuel and power consumption requirements continue to rise, lightweighting is essential to reducing them. Composite tailgates, as a lightweighting solution, are becoming a trend. However, customers are also increasingly demanding on cost, making cost reduction a key factor in the development of composite tailgates. Currently, composite tailgate inner panels are primarily reinforced with metal reinforcements, typically inserts and injection molded into the panels. This approach often requires large metal components and high precision, resulting in high manufacturing costs. Therefore, improvements to the existing inner panel structure are necessary. Utility Model Content
[0003] The technical problem to be solved by the present invention is to provide an inner plate structure with bent tube reinforcement in view of the current status of the existing technology. The structure can reduce the product cost of composite material tailgates, which is conducive to improving the competitiveness of composite material tailgates.
[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a bent pipe reinforced inner panel structure, including a tailgate inner panel, characterized in that a bent pipe assembly is provided in the window frame area of the tailgate inner panel, and the bent pipe assembly includes a bent pipe part and a pre-installed bracket, and the bent pipe part and the pre-installed bracket are connected into an assembly and installed in the window frame area of the tailgate inner panel.
[0005] In the above-mentioned bent pipe reinforced inner panel structure, the bent pipe assembly also includes a strut reinforcement and a hinge reinforcement. The strut reinforcement, hinge reinforcement, bent pipe and pre-installed bracket are connected into an assembly and installed in the window frame area of the tailgate inner panel.
[0006] In the above-mentioned bent-tube reinforced inner panel structure, the strut reinforcement, hinge reinforcement, bent-tube member and pre-installed bracket are welded together into an assembly and installed in the window frame area of the tailgate inner panel by means of bolts or screws.
[0007] In the above-mentioned bent pipe reinforced inner plate structure, the bent pipe part is made of metal material and is in the shape of a hollow tube. The two ends of the bent pipe part have flat connecting parts. The flat connecting part at one end is welded to the strut reinforcement part, and the flat connecting part at the other end is welded to the hinge reinforcement part. The pre-installed bracket is welded to the middle position of the bent pipe part.
[0008] In the above-mentioned inner plate structure with bent pipe reinforcement, the strut reinforcement, the hinge reinforcement and the pre-installed bracket are all provided with fixed connection holes.
[0009] Compared with the existing technology, the advantage of the present invention is that the strut reinforcement, hinge reinforcement, bent pipe and pre-installed bracket are connected into an assembly and then installed with the tailgate inner panel. In this way, while ensuring the strength performance of the tailgate, the cost of the composite tailgate product is reduced, which is conducive to improving the competitiveness of the composite tailgate. The entire structure is simple and convenient to install, and can meet the customer's performance requirements at a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the overall structure of the inner plate structure after the elbow reinforcement is assembled;
[0011] Figure 2 yes Figure 1 BB structural diagram;
[0012] Figure 3 It is a structural diagram of a pipe bend. DETAILED DESCRIPTION
[0013] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0014] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.
[0015] In the figure, the tailgate inner panel 100, the bent pipe assembly 200, the bent pipe member 300, the flat connecting portion 301, the pre-installed bracket 400, the strut reinforcement 500, the hinge reinforcement 600, the window frame area 700 of the tailgate inner panel, and the fixed connection hole 800.
[0016] like Figure 1 and Figure 2As shown, the inner panel structure with bent pipe reinforcement includes a tailgate inner panel 100, wherein the window frame area 700 of the tailgate inner panel is provided with a bent pipe assembly 200, the bent pipe assembly 200 includes a bent pipe member 300 and a pre-installed bracket 400, the bent pipe member 300 and the pre-installed bracket 400 are connected into an assembly and installed at the window frame area 700 of the tailgate inner panel, specifically, the bent pipe assembly 200 also includes a strut reinforcement 500 and a hinge reinforcement 600, the strut reinforcement 500 and the hinge reinforcement 600. 00, the bent pipe 300 and the pre-installed bracket 400 are connected into an assembly and installed at the window frame area 700 of the tailgate inner panel. The innovation of this patent is to separate the strut reinforcement 500, the hinge reinforcement 600, the bent pipe 300 and the pre-installed bracket 400 as an assembly, and then assemble them into the window frame area 700 of the tailgate inner panel for reinforcement. This replaces the original insert injection molding solution, reduces the cost of composite material tailgate products, and is conducive to improving the competitiveness of composite material tailgates.
[0017] like Figure 3 As shown, in order to ensure the reliability of the connection, the strut reinforcement 500, the hinge reinforcement 600, the bent pipe 300 and the pre-installed bracket 400 are welded together to form an assembly and installed at the window frame area 700 of the tailgate inner panel by bolts or screws. The bent pipe 300 is made of metal material and is hollow tubular. The two ends of the bent pipe 300 have flat connecting parts 301. The flat connecting part 301 at one end is welded to the strut reinforcement 500, and the other end is welded to the hinge reinforcement 600. The pre-installed bracket 400 is welded to the middle position of the bent pipe 300. Here, the hard connection points between the tailgate and the vehicle body are the strut and the hinge. Therefore, by adding the strut reinforcement 500 and the hinge reinforcement 600 for local reinforcement, the bent pipe 300 provides hard support for the strut and hinge installation points, thereby ensuring the performance of the tailgate. The strut reinforcement 500, the hinge reinforcement 600 and the pre-installed bracket 400 are all provided with fixed connection holes 800, so that they are installed in the window frame area 700 of the tailgate inner panel through bolts / screws in the fixed connection holes 800. In this way, while ensuring the strength performance of the tailgate, the cost of the composite material tailgate product is also reduced, which is conducive to improving the competitiveness of the composite material tailgate. The entire structure is simple and convenient to install, and can meet the customer's performance requirements at a lower cost.
[0018] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.
Claims
1. A bent-tube reinforced inner panel structure, including a tailgate inner panel, characterized in that: The window frame area of the tailgate inner panel is provided with a bent pipe assembly, which includes a bent pipe piece and a pre-installed bracket. The bent pipe piece and the pre-installed bracket are connected into an assembly and installed at the window frame area of the tailgate inner panel.
2. The inner plate structure with bent pipe reinforcement according to claim 1, characterized in that: The bent pipe assembly also includes a strut reinforcement and a hinge reinforcement. The strut reinforcement, the hinge reinforcement, the bent pipe and the pre-installed bracket are connected into an assembly and installed in the window frame area of the tailgate inner panel.
3. The inner plate structure with bent pipe reinforcement according to claim 2, characterized in that: The strut reinforcement, hinge reinforcement, bent pipe and pre-installed bracket are welded together to form an assembly, and are installed in the window frame area of the tailgate inner panel by means of bolts or screws.
4. The inner plate structure with bent pipe reinforcement according to claim 2, characterized in that: The bent pipe is made of metal material and is hollow tubular. Both ends of the bent pipe have flat connecting parts. The flat connecting part at one end is welded to the strut reinforcement, and the flat connecting part at the other end is welded to the hinge reinforcement. The pre-installed bracket is welded to the middle position of the bent pipe.
5. The inner plate structure with bent pipe reinforcement according to claim 4, characterized in that: The strut reinforcement, hinge reinforcement and pre-installed bracket are all provided with fixed connection holes.