Fixing structure for preventing breakage of corbel iron pipe of electric vehicle
By welding anti-crack semi-ring plates and end plates onto the support arm body and connecting them with screw rods, the problem of easy breakage of the support arm iron pipe was solved, thus achieving reinforcement and improved stability of the support arm.
Patent Information
- Application Number
- CN202520789620.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-24
AI Technical Summary
The existing iron pipes for electric vehicle tow arms are prone to breakage during use, affecting their service life and overall performance.
A fixing structure to prevent the iron pipe of the electric vehicle support arm from breaking is designed. The structure consists of anti-crack semi-ring plates and end plates on the support arm body, which are welded together and connected to the electric vehicle chassis by screw rods to form a reinforced structure.
It effectively prevents the breakage of the central iron pipe body and, to a certain extent, prevents the deformation of the support arm body, thus improving the service life and stability of the support arm.
Smart Images

Figure CN223934890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle support arm iron pipe anti-breakage technology, specifically a fixing structure to prevent electric vehicle support arm iron pipe from breaking. Background Technology
[0002] Electric vehicle support arm iron pipe usually refers to the iron pipe part used in the support arm of an electric vehicle. The main function of the support arm in an electric vehicle is to support the connection between the wheel and the frame, ensuring the stability of the wheel and the handling performance of the vehicle. As part of the support arm, the iron pipe mainly plays the role of support and load-bearing. Currently, support arm iron pipe is usually used in the installation process of electric vehicles.
[0003] In the current use of electric vehicles, the chassis usually requires the use of a support arm. However, the middle iron pipe of the existing support arm is prone to breakage due to poor reinforcement, resulting in a short service life and affecting the overall performance of the support arm. Therefore, this utility model is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a fixing structure to prevent the iron pipe of the electric vehicle arm from breaking, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixing structure for preventing the iron pipe of an electric vehicle support arm from breaking, comprising a support arm body, an installation assembly on the support arm body, the installation assembly comprising a first end pipe fixed at one end of the support arm body, a second end pipe fixed at the other end, a middle iron pipe body through and fixed on the edge of the support arm body near the first end pipe, a suitable anti-crack semi-ring plate provided on the outer side of the middle iron pipe body, end plates fixed at both ends of the anti-crack semi-ring plate, the end plates and the anti-crack semi-ring plate being integrated, and the end plates and the anti-crack semi-ring plate being integrally welded to the support arm body.
[0006] Preferably, an intermediate mounting tube is inserted and installed inside the central iron pipe body, and an intermediate mounting hole is opened in the middle of the intermediate mounting tube.
[0007] Preferably, a first mounting tube is inserted inside the first end tube, and a first end hole is opened in the middle of the first mounting tube.
[0008] Preferably, a second mounting tube is inserted inside the second end tube, and a second end hole is opened in the middle of the second mounting tube.
[0009] Preferably, one side edge of the support arm body is configured as a supporting arc surface, and a reinforcing flange is adapted and fixed on the supporting arc surface, with the support arm body and the reinforcing flange being an integral unit.
[0010] Preferably, the ends of the support arm body are respectively configured as arc surfaces adapted to the first end tube and the second end tube, and one side edge of the support arm body is configured as a semi-circular arc surface, which is adapted to the middle iron pipe body. The first end hole, the middle mounting hole and the second end hole are used to install the screw rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This fixing structure for preventing the iron pipe of the electric vehicle support arm is designed with an anti-crack semi-ring and an end piece as a whole. The anti-crack semi-ring and the end piece are welded to the support arm body as a whole, which plays a certain role in reinforcing the iron pipe in the middle, effectively preventing the iron pipe in the middle from breaking, and also preventing the support arm body from bending to a certain extent, thus ensuring the performance of the support arm body. Attached Figure Description
[0013] Figure 1 This is a first three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a front view of the present invention;
[0015] Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention;
[0016] Figure 4 This is a schematic diagram of the three-dimensional disassembled structure of this utility model.
[0017] In the diagram: 1. Support arm body; 101. Reinforcing flange; 2. Middle iron pipe body; 201. Middle mounting pipe; 202. Middle mounting hole; 203. Crack-resistant semi-ring plate; 204. End plate; 3. First end pipe; 301. First mounting pipe; 302. First end hole; 4. Second end pipe; 401. Second mounting pipe; 402. Second end hole. Detailed Implementation
[0018] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] During the installation of electric vehicles, the support arm body 1 is required. The fixing structure provided by this utility model is specifically designed to prevent the middle iron pipe body 2 from breaking and to a certain extent to prevent the support arm body 1 from bending, thus improving usability. Before using this structure, it is necessary to carry out preparatory work to ensure the normal use of this structure.
[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a fixing structure to prevent the iron pipe of an electric vehicle support arm from breaking, including a support arm body 1, an installation component on the support arm body 1, the installation component including a first end pipe 3 fixed at one end of the support arm body 1, a second end pipe 4 fixed at the other end, a middle iron pipe body 2 through and fixed on the edge of the support arm body 1 near the first end pipe 3, a matching anti-crack semi-ring piece 203 is provided on the outside of the middle iron pipe body 2, and end pieces 204 are fixed at both ends of the anti-crack semi-ring piece 203. The end pieces 204 and the anti-crack semi-ring piece 203 are integrated and welded as a whole to the support arm body 1. It should be noted that the support arm body 1 is the prior art and is used to install on the chassis of an electric vehicle.
[0021] In this embodiment, a middle mounting tube 201 is inserted and installed inside the middle iron pipe body 2, and a middle mounting hole 202 is opened in the middle of the middle mounting tube 201. A first mounting tube 301 is inserted and installed inside the first end tube 3, and a first end hole 302 is opened in the middle of the first mounting tube 301. The first end hole 302 and the middle mounting hole 202 are connected to the electric vehicle by a U-shaped iron plate.
[0022] In this embodiment, a second mounting tube 401 is inserted and installed inside the second end tube 4. A second end hole 402 is opened in the middle of the second mounting tube 401. One side edge of the support arm body 1 is set as a support arc surface. A reinforcing flange 101 is adapted and fixed on the support arc surface. The support arm body 1 and the reinforcing flange 101 are integrated.
[0023] In this embodiment, the ends of the support arm body 1 are respectively set as arc surfaces adapted to the first end tube 3 and the second end tube 4. One side edge of the support arm body 1 is set as a semi-circular arc surface, which is adapted to the middle iron pipe body 2. The first end hole 302, the middle mounting hole 202 and the second end hole 402 are used to install screw rods. Through the overall setting of the anti-crack semi-ring piece 203 and the end piece 204, the anti-crack semi-ring piece 203 and the end piece 204 are welded to the support arm body 1 as a whole, which plays a certain role in reinforcing the middle iron pipe body 2, effectively preventing the middle iron pipe body 2 from breaking, and to a certain extent preventing the support arm body 1 from bending, thus ensuring the use effect of the support arm body 1. The screw rod is existing technology and is easy to install.
[0024] Working principle: When using this structure to prevent breakage of the support arm body 1, the anti-crack semi-ring 203 and end piece 204 are integrally adapted and welded to the outer side of the middle iron pipe body 2 and the support arm body 1. The anti-crack semi-ring 203 and end piece 204 together reinforce the middle iron pipe body 2, effectively preventing the middle iron pipe body 2 from breaking and preventing the support arm body 1 from bending. The support arm body 1 is installed and connected to the electric vehicle chassis through the first end hole 302, the middle mounting hole 202 and the second end hole 402 via the screw rod.
[0025] 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 embodiments and their equivalents.
Claims
1. A fixing structure for preventing the iron pipe of an electric vehicle support arm from breaking, comprising a support arm body (1), characterized in that: The support arm body (1) is provided with an installation component, which includes a first end tube (3) fixed at one end of the support arm body (1) and a second end tube (4) fixed at the other end. A middle iron pipe body (2) is fixed through the edge of the support arm body (1) near the first end tube (3). A matching anti-crack semi-ring plate (203) is provided on the outside of the middle iron pipe body (2). Both ends of the anti-crack semi-ring plate (203) are fixed with end plates (204). The end plates (204) and the anti-crack semi-ring plate (203) are integrated. The end plates (204) and the anti-crack semi-ring plate (203) are welded together on the support arm body (1).
2. The fixing structure for preventing the iron pipe of an electric vehicle support arm from breaking according to claim 1, characterized in that: An intermediate mounting tube (201) is inserted inside the central iron pipe body (2), and an intermediate mounting hole (202) is opened in the middle of the intermediate mounting tube (201).
3. The fixing structure for preventing the iron pipe of an electric vehicle support arm from breaking according to claim 2, characterized in that: The first end tube (3) is fitted with a first mounting tube (301), and the first mounting tube (301) has a first end hole (302) in the middle.
4. The fixing structure for preventing the iron pipe of an electric vehicle support arm from breaking according to claim 3, characterized in that: The second end tube (4) is fitted with a second mounting tube (401), and the second mounting tube (401) has a second end hole (402) in the middle.
5. The fixing structure for preventing the iron pipe of an electric vehicle support arm from breaking according to claim 4, characterized in that: The support arm body (1) has one side edge set as a support arc surface, and a reinforcing flange (101) is adapted and fixed on the support arc surface. The support arm body (1) and the reinforcing flange (101) are integrated.
6. The fixing structure for preventing the iron pipe of an electric vehicle support arm from breaking according to claim 5, characterized in that: The ends of the support arm body (1) are respectively set as arc surfaces that are adapted to the first end tube (3) and the second end tube (4). The edge of one side of the support arm body (1) is set as a semi-circular arc surface, which is adapted to the middle iron pipe body (2). The first end hole (302), the middle mounting hole (202), and the second end hole (402) are used to install screw rods.