Reinforced connection structure for frame and seat cask tube of electric vehicle

Abstract

The utility model discloses a reinforced connection structure of an electric vehicle frame and a seat cask tube, which comprises a frame tube and a seat cask tube fixedly connected with the frame tube, and further comprises a reinforcing component, the front end of the reinforcing component is connected with the seat cask tube, and the rear end of the reinforcing component is connected with the frame tube. Through the arrangement of the reinforcing assembly, on one hand, the stability of connection between the frame tube and the seat cask tube can be improved, and on the other hand, the riding comfort of the bicycle can be effectively improved.

Description

Technical Field

[0001] This utility model relates to electric vehicle frames, and more particularly to a reinforced connection structure between an electric vehicle frame and a seat tube. Background Technology

[0002] In the frame structure of electric two-wheelers, the seat tube is a key component that bears the rider's weight and part of the frame's stress. Traditional designs often use a straight tube connection method to connect the seat tube and the frame tube with a straight tube. However, this structure has the disadvantages of stress concentration and limited load-bearing capacity, which makes the welded area prone to fatigue cracking, thus affecting the frame's durability. On the other hand, the straight tube structure is relatively rigid, which also reduces riding comfort. Therefore, improvements are needed. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies, such as limited load-bearing capacity between the seat tube and frame tube and low riding comfort, by providing a new reinforced connection structure between the electric vehicle frame and seat tube.

[0004] To solve the above-mentioned technical problems, this utility model achieves this through the following technical solution:

[0005] A reinforced connection structure for an electric vehicle frame and a seat tube includes a frame tube and a seat tube, wherein the seat tube is fixedly connected to the frame tube, and further includes a reinforcing component, wherein the front end of the reinforcing component is connected to the seat tube, and the rear end of the reinforcing component is connected to the frame tube.

[0006] This application improves the stability of the connection between the frame tube and seat tube by strengthening the component settings, and also effectively enhances the riding comfort of the vehicle.

[0007] Preferably, in the above-described reinforced connection structure between the electric vehicle frame and the seat tube, the reinforcing component includes a first reinforcing member, a first fixed space is formed between the seat tube and the frame tube, the first reinforcing member is located on both sides of the first fixed space, and the front end and rear end of the first reinforcing member are respectively connected to the frame tube and the seat tube.

[0008] Preferably, in the above-described reinforced connection structure between the electric vehicle frame and the seat tube, the first reinforcing member is made of a bent tube.

[0009] Preferably, in the above-described reinforced connection structure between the electric vehicle frame and the seat tube, the reinforcing component further includes a second reinforcing member, a second fixed space is formed between the first reinforcing members, the second reinforcing member is located at the front end and the rear end of the second fixed space, and both sides of the second reinforcing member are connected to the first reinforcing member.

[0010] Preferably, in the above-described reinforced connection structure between the electric vehicle frame and the seat tube, the second reinforcing member is made by sheet metal processing.

[0011] The present invention has the following advantages through the above structural improvements:

[0012] Compared to conventional seat tube and frame tube connection methods, this application has the advantages of stability and comfort. Through the cooperation of the first and second reinforcing members, on the one hand, the stress between the seat tube and frame tube can be more even, thereby effectively improving the overall rigidity and preventing fatigue cracking in the welded area. On the other hand, because the stress between the seat tube and frame tube is even, the riding comfort of the vehicle can be improved. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Reference numerals: 1. Frame tube; 2. Seat tube; 3. Reinforcing assembly; 31. First reinforcing member; 4. First fixing space; 32. Second reinforcing member; 5. Second fixing space. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1 The present invention will be further described in detail with reference to specific embodiments, but these are not intended to limit the present invention: Example

[0016] like Figure 1 As shown, a reinforced connection structure between an electric vehicle frame and a seat tube includes a frame tube 1 and a seat tube 2, wherein the seat tube 2 is fixedly connected to the frame tube 1. The structure also includes a reinforcing component 3, wherein the front end of the reinforcing component 3 is connected to the seat tube 2 and the rear end of the reinforcing component 3 is connected to the frame tube 1.

[0017] Preferably, the reinforcing component 3 includes a first reinforcing member 31, a first fixing space 4 is formed between the seat tube 2 and the frame tube 1, the first reinforcing member 31 is located on both sides of the first fixing space 4, and the front end and rear end of the first reinforcing member 31 are connected to the frame tube 1 and the seat tube 2, respectively.

[0018] Preferably, the first reinforcing member 31 is made of a bent pipe.

[0019] More specifically, since the first reinforcing member 31 is made of a bent tube, both ends of the first reinforcing member 31 have a certain curvature. Therefore, when the first reinforcing member 31 is welded with the seat tube 2 and the frame tube 1, the welding area can be effectively increased, thereby improving the stability of the first reinforcing member 31 after welding.

[0020] Preferably, the reinforcing component 3 further includes a second reinforcing member 32, a second fixing space 5 is formed between the first reinforcing members 31, the second reinforcing member 32 is located at the front end and the rear end of the second fixing space 5 respectively, and both sides of the second reinforcing member 32 are connected to the first reinforcing member 31 respectively.

[0021] Preferably, the second reinforcing member 32 is made by sheet metal processing.

[0022] More specifically, the second reinforcing member 32, made using sheet metal processing, is more convenient to manufacture and can also improve the structural strength of the second reinforcing member 32.

[0023] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A reinforced connection structure between an electric vehicle frame and a seat tube, comprising a frame tube (1) and a seat tube (2), wherein the seat tube (2) is fixedly connected to the frame tube (1), characterized in that: It also includes a reinforcing component (3), the front end of which is connected to the seat tube (2), and the rear end of which is connected to the frame tube (1). The reinforcing component (3) includes a first reinforcing member (31), and a first fixed space (4) is formed between the seat tube (2) and the frame tube (1). The first reinforcing member (31) is located on both sides of the first fixed space (4), and the front end and the rear end of the first reinforcing member (31) are connected to the frame tube (1) and the seat tube (2) respectively. The first reinforcing member (31) is made of bent tube. The reinforcing component (3) also includes a second reinforcing member (32), and a second fixed space (5) is formed between the first reinforcing members (31). The second reinforcing member (32) is located at the front end and the rear end of the second fixed space (5), and the two sides of the second reinforcing member (32) are connected to the first reinforcing member (31) respectively. The second reinforcing member (32) is made by sheet metal process.

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