High-strength electric vehicle frame

Abstract

The utility model relates to a high-strength electric vehicle frame which comprises a first pipe body, a second pipe body arranged on the first pipe body, a vehicle seat supporting frame arranged on the end face of the second pipe body, a supporting plate arranged at the bottom of the first pipe body, a third pipe body arranged on the first pipe body and a fourth pipe body connected with a handle. Two groups of third pipe bodies are oppositely arranged; the third pipe body is welded on the first pipe body through a plate; an arc surface is arranged on the end surface of the third pipe body; the arc surfaces of the two groups of third pipe bodies form a circle; and the fourth pipe body is positioned between the arc surfaces of the two groups of third pipe bodies and is in interference fit with the third pipe bodies. The problems that a high-strength electric vehicle frame provided in the prior art is mainly manufactured in a welding mode, so that the consistency of products is poor; and meanwhile, when the handlebar rod is assembled, the handlebar rod is inconsistent with a wheel during assembly, so that errors and excessive energy consumption during assembly are caused.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicles, and in particular to a high-strength electric vehicle frame. Background Technology

[0002] A high-strength electric vehicle frame typically includes the frame body, saddle support, rear rack, and rear swingarm.

[0003] The high-strength electric vehicle frames disclosed in the prior art are usually made by welding tubing, that is, the various parts of the high-strength electric vehicle frame are manufactured and assembled together mainly by welding.

[0004] The applicant has discovered that in the prior art, high-strength electric vehicle frames are manufactured primarily by welding, which requires manual operation, resulting in low production efficiency and poor product consistency. Furthermore, the various parts of the high-strength electric vehicle frame are assembled together primarily by welding, leading to large assembly errors and a low product qualification rate.

[0005] In summary, the existing technology has at least the following technical problems: the high-strength electric vehicle frame provided by the existing technology is manufactured mainly by welding, which will result in poor product consistency; at the same time, the assembly of the handlebars will lead to inconsistencies with the wheels, resulting in assembly errors and excessive effort. Utility Model Content

[0006] This application provides a high-strength electric vehicle frame, which solves the problem that existing high-strength electric vehicle frames, which are mainly manufactured by welding, result in poor product consistency. At the same time, the assembly of the handlebars can lead to inconsistencies with the wheels, resulting in assembly errors and excessive effort.

[0007] The technical solutions adopted in the embodiments of this application are as follows.

[0008] A high-strength electric vehicle frame includes a first tube, a second tube mounted on the first tube, a seat support frame mounted on the end face of the second tube, a support plate mounted on the bottom of the first tube, a third tube mounted on the first tube, and a fourth tube for connecting the handlebars; two sets of the third tubes are arranged opposite each other; the third tubes are welded to the first tubes by means of sheet metal; the end face of the third tube has an arc surface; the arc surfaces of the two sets of the third tubes form a circle; the fourth tube is located between the arc surfaces of the two sets of the third tubes and is interference-fitted onto the third tubes.

[0009] As a further improvement to the above technical solution: a first connector is provided between the two sets of third tubes; the first connector fixes the two sets of third tubes together with bolts.

[0010] As a further improvement to the above technical solution: a receiving groove for placing batteries is formed between the support plate, the first tube and the second tube.

[0011] As a further improvement to the above technical solution: a second connecting member for strengthening is provided on the first tube body and the second tube body; the second connecting member is triangular in shape.

[0012] As a further improvement to the above technical solution: the fourth tube is elliptical and its shape corresponds to the shape formed by the arc surfaces of the two sets of the third tubes.

[0013] As a further improvement to the above technical solution: the end face of the fourth tube corresponds to the first tube and the fourth tube is welded to the first tube.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0015] 1. Due to the adoption of a first tube body with a gate-shaped cross-section and a second tube body on the first tube body, the second tube body extends backward and has a seat support frame on the second tube body, and a support plate is set at the bottom of the first tube body, sealing the bottom of the first tube body. A third tube body is welded to the first tube body, and the third tube body is L-shaped with two sets of the third tube body arranged opposite each other. A first connector is set between the two sets of the third tube body, and the first connector is fixed to the two sets of the third tube body by bolts. The third tube body, the first tube body, the support plate and the first connector form a receiving groove, and the receiving groove is closed on all four sides and the bottom. A battery pack is placed in the receiving groove. The opposite end faces of the third tube body are opened with arc surfaces, and the two sets of arc surfaces form a cylinder with an elliptical shape. A fourth tube body is located between the two sets of arc surfaces and is elliptical in shape. The end face of the fourth tube body corresponds to the first tube body and is welded to the first tube body. Thus, the assembly effect of each set of parts is completely restricted by assembly and bolts, and the direction of the fourth tube body is restricted by the arc surfaces. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the high-strength electric vehicle frame in this utility model.

[0017] In the figure: 1. First tube; 2. Second tube; 3. Seat support frame; 4. Support plate; 5. Third tube; 51. Arc surface; 52. First connector; 6. Fourth tube; 7. Receiving groove; 8. Second connector. Detailed Implementation

[0018] This application provides a high-strength electric vehicle frame, which solves the problem that existing high-strength electric vehicle frames, which are mainly manufactured by welding, result in poor product consistency. At the same time, the assembly of the handlebars can lead to inconsistencies with the wheels, resulting in assembly errors and excessive effort.

[0019] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] A high-strength electric vehicle frame includes a first tube 1, a second tube 2 mounted on the first tube 1, a seat support frame 3 mounted on the end face of the second tube 2, a support plate 4 mounted at the bottom of the first tube 1, a third tube 5 mounted on the first tube 1, and a fourth tube 6 connecting the handlebars; two sets of third tubes 5 are arranged opposite each other; the third tubes 5 are welded to the first tube 1 by means of sheet metal; an arc surface 51 is formed on the end face of the third tube 5; the arc surfaces 51 of the two sets of third tubes 5 form a circle; the fourth tube 6 is located between the arc surfaces 51 of the two sets of third tubes 5 and is interference-fitted onto the third tubes 5.

[0022] A first connector 52 is provided between the two sets of third tubes 5; the first connector 52 fixes the two sets of third tubes 5 with bolts.

[0023] A battery-accommodating groove 7 is formed between the support plate 4, the first tube 1, and the second tube 2.

[0024] A second connecting member 8 for strengthening is provided on the first tube body 1 and the second tube body 2; the second connecting member 8 is triangular in shape.

[0025] The fourth tube 6 is elliptical and its shape corresponds to the shape formed by the arc surfaces 51 of the two sets of third tubes 5.

[0026] The end face of the fourth tube 6 corresponds to that of the first tube 1, and the fourth tube 6 is welded to the first tube 1.

[0027] The first tube 1 is U-shaped with a circular cross-section. A second tube 2 is mounted on the first tube 1, extending rearward and equipped with a seat support frame 3. A support plate 4 is mounted at the bottom of the first tube 1, sealing the bottom of the first tube. A third tube 5 is welded to the first tube 1, forming an L-shape with two sets of third tubes 5 arranged opposite each other. A first connector 52 is provided between the two sets of third tubes 5, and the first connector 52 connects the two sets of third tubes 5 with bolts. The third tube 5, the first tube 1, the support plate 4, and the first connector 52 are fixed together to form a receiving groove 7. The four sides and the bottom of the receiving groove 7 are closed. A battery pack is placed in the receiving groove 7. The opposite end faces of the third tube 5 are provided with arc surfaces 51. The two sets of arc surfaces 51 form a cylinder and the shape is elliptical. The fourth tube 6 is located between the two sets of arc surfaces 51 and the fourth tube 6 is elliptical. The end face of the fourth tube 6 corresponds to the first tube 1 and the end face of the fourth tube 6 is welded to the first tube 1.

[0028] Because the first tube 1 is U-shaped with a circular cross-section, a second tube 2 is installed on the first tube 1. The second tube 2 extends rearward and is equipped with a seat support frame 3. A support plate 4 is installed at the bottom of the first tube 1, sealing the bottom of the first tube. A third tube 5 is welded to the first tube 1. The third tube 5 is L-shaped and two sets of third tube 5 are arranged opposite each other. A first connector 52 is installed between the two sets of third tube 5. The first connector 52 fixes the two sets of third tube 5 with bolts. The third tube 5, the first tube 1, the support plate 4, and... The first connector 52 forms a receiving groove 7, which is closed on all four sides and at the bottom. A battery pack is placed inside the receiving groove 7. The opposite end faces of the third tube 5 are provided with arc surfaces 51. The two sets of arc surfaces 51 form a cylinder and are elliptical in shape. The fourth tube 6 is located between the two sets of arc surfaces 51 and is elliptical in shape. The end face of the fourth tube 6 corresponds to the first tube 1 and is welded to the first tube 1. This achieves the effect of completely restricting the assembly of each set of parts through assembly and bolts, and restricts the direction of the fourth tube 6 through the arc surfaces 51.

[0029] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-strength electric vehicle frame, characterized in that, The system includes a first tube (1), a second tube (2) disposed on the first tube (1), a seat support frame (3) disposed on the end face of the second tube (2), a support plate (4) disposed at the bottom of the first tube (1), a third tube (5) disposed on the first tube (1), and a fourth tube (6) for connecting the handle; two sets of the third tube (5) are arranged opposite each other; the third tube (5) is welded to the first tube (1) by a plate; an arc surface (51) is provided on the end face of the third tube (5); the arc surfaces (51) of the two sets of the third tube (5) form a circle; the fourth tube (6) is located between the arc surfaces (51) of the two sets of the third tube (5) and is interference-fitted on the third tube (5).

2. The high-strength electric vehicle frame as described in claim 1, characterized in that, A first connector (52) is provided between the two sets of the third tubes (5); the first connector (52) fixes the two sets of the third tubes (5) with bolts.

3. The high-strength electric vehicle frame as described in claim 1, characterized in that, A receiving groove (7) for placing batteries is formed between the support plate (4), the first tube (1) and the second tube (2).

4. The high-strength electric vehicle frame as described in claim 1, characterized in that, The first tube (1) and the second tube (2) are provided with a second connecting member (8) to enhance strength; the second connecting member (8) is triangular in shape.

5. The high-strength electric vehicle frame as described in claim 1, characterized in that, The fourth tube (6) is elliptical and its shape corresponds to the shape formed by the arc surfaces (51) of the two sets of the third tubes (5).

6. The high-strength electric vehicle frame as described in claim 1, characterized in that, The end face of the fourth tube (6) corresponds to the first tube (1), and the fourth tube (6) is welded to the first tube (1).

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