Electric vehicle keel frame capable of preventing connection loosening

Abstract

The utility model discloses an electric vehicle keel frame capable of preventing connection looseness, and relates to the technical field of electric vehicle keel frames. The electric vehicle keel frame capable of preventing connection loosening comprises an electric vehicle front frame and an electric vehicle rear frame. The electric vehicle keel frame connecting assembly comprises a connecting pipe, a first through groove is formed in the surface of the electric vehicle front framework, a groove is formed in the surface of the connecting pipe, a second through groove is formed in the inner wall of the groove, and a fixing bolt is arranged in the electric vehicle front framework. The electric vehicle front framework and the connecting pipe can be conveniently fixed to form a stable whole, meanwhile, the electric vehicle front framework and the electric vehicle rear framework are fixed through the fixing bolts, and the electric vehicle front framework and the electric vehicle rear framework can be conveniently detached in the transportation process of the electric vehicle keel frame; the electric vehicle front framework and the electric vehicle rear framework can be conveniently disassembled and transported separately, the size of the electric vehicle keel frame is reduced, and the transportation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle frame technology, and in particular to an electric vehicle frame that can prevent loose connections. Background Technology

[0002] Electric vehicles, also known as electric-driven vehicles, are divided into AC electric vehicles and DC electric vehicles. Generally speaking, electric vehicles use batteries as an energy source and convert electrical energy into mechanical energy for movement through components such as controllers and motors. The speed is changed by controlling the magnitude of the current.

[0003] The electric vehicle frame is an important component of the entire electric vehicle, bearing most of its parts. Currently, the structure of an electric vehicle mainly consists of a shell, frame, seat, and electric system. The frame is mostly made by welding rods and then covering them with a shell. Because the welded electric vehicle frame takes up a lot of space, the process is complex, troublesome, and difficult. Due to its large size, it is not convenient to transport the electric vehicle frame. The large size of the frame requires more time and manpower during loading and unloading, reducing transportation efficiency. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an electric vehicle frame that can prevent loose connections. This solves the problems that the electric vehicle frame takes up a lot of space after welding, the process is complicated, troublesome and difficult; the large size of the material makes it inconvenient to transport the electric vehicle frame, and the large size requires more time and manpower during loading and unloading, which reduces transportation efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric vehicle frame that can prevent loosening of connections, comprising a front frame and a rear frame of the electric vehicle.

[0006] An electric vehicle frame connection assembly is provided between the front frame and the rear frame of an electric vehicle. The electric vehicle frame connection assembly includes a connecting pipe, which is fixedly connected to the rear frame of the electric vehicle and slidably connected to the front frame of the electric vehicle.

[0007] The front frame of the electric vehicle has a first through groove on its surface, the connecting pipe has a groove on its surface, the inner wall of the groove has a second through groove, the front frame of the electric vehicle has a fixing bolt inside, the front frame of the electric vehicle and the connecting pipe are fixedly connected by the connecting pipe, and the first through groove and the groove are both hexagonal prisms.

[0008] The inner walls of the first through groove, the groove, and the second through groove are all engaged with the fixing bolts, while the fixing bolts pass through the front frame of the electric vehicle and the connecting pipe.

[0009] Preferably, there are two connecting pipes, which are symmetrically arranged on the left and right sides of the rear frame of the electric vehicle.

[0010] Preferably, there are four of each of the first through groove, the groove, the second through groove, and the fixing bolt, which are symmetrically arranged on the corresponding connecting pipes.

[0011] Preferably, the electric vehicle front frame has two battery box support frames fixedly connected inside, and the electric vehicle battery box is provided inside the electric vehicle front frame, with the electric vehicle battery box fixedly connected to the two battery box support frames.

[0012] Preferably, the rear end of the electric vehicle rear frame is hinged to an electric vehicle rear fork, and a fixing plate is fixedly connected to the surface of the electric vehicle rear frame.

[0013] The upper end of the electric vehicle's rear fork is hinged to two shock absorbers, both of which are hinged to the shock absorber.

[0014] Preferably, an electric vehicle rear seat support frame is fixedly connected to the fixing plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This electric vehicle frame that prevents loosening of connections facilitates the fixing of the front frame and connecting pipe of the electric vehicle through the use of a first through groove, connecting pipe, groove, second through groove, and fixing bolts. The fixing bolts tightly connect the front frame and rear frame of the electric vehicle through the first through groove and groove, forming a stable whole and preventing loosening after the connection of the front frame and rear frame, thus improving the structural strength and stability of the electric vehicle. At the same time, the fixing bolts between the front frame and rear frame of the electric vehicle facilitate disassembly of the front frame and rear frame during transportation, making it easier to disassemble and transport the front frame and rear frame separately, reducing the volume of the electric vehicle frame and improving transportation efficiency.

[0017] 2. This electric vehicle frame that prevents loose connections can enhance the stability of the battery pack structure by securing the battery box. Especially in applications where electric vehicles experience frequent vibrations, it can prevent the battery pack structure from becoming loose and extend the lifespan of the battery box and the batteries inside. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of an electric vehicle frame structure that can prevent loose connections according to the present invention;

[0020] Figure 2 This is a schematic diagram of the electric vehicle battery box of this utility model;

[0021] Figure 3 This is a schematic diagram of the connecting pipe of this utility model;

[0022] Figure 4 This is a schematic diagram of the fixing bolt of this utility model.

[0023] Reference numerals in the attached drawings: 1. Front frame of electric vehicle; 2. Rear frame of electric vehicle; 3. First through slot; 4. Connecting pipe; 5. Groove; 6. Second through slot; 7. Fixing plate; 8. Battery box support frame; 9. Electric vehicle battery box; 10. Fixing bolt; 11. Rear fork of electric vehicle; 12. Rear seat support frame of electric vehicle; 13. Shock absorber. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Please see Figure 1-4This utility model provides a technical solution: an electric vehicle frame that prevents loosening of connections, including a front frame 1 and a rear frame 2, and an electric vehicle frame connecting assembly. The electric vehicle frame connecting assembly is disposed between the front frame 1 and the rear frame 2. The electric vehicle frame connecting assembly includes a connecting pipe 4, which is fixedly connected to the rear frame 2 and slidably connected to the front frame 1. A first through groove 3 is formed on the surface of the front frame 1, and a groove 5 is formed on the surface of the connecting pipe 4. A second through groove 6 is formed on the inner wall of the groove 5. A fixing bolt 10 is provided inside the front frame 1. The front frame 1 and the connecting pipe 4 are fixedly connected through the connecting pipe 4. The first through groove 3 and the groove 5 are both hexagonal prisms. The inner walls of the first through groove 3, the groove 5, and the second through groove 6 are all engaged with the fixing bolt 10. At the same time, the fixing bolt 10 passes through the front frame 1 and the connecting pipe 4.

[0029] There are two connecting pipes 4, which are symmetrically arranged on the left and right sides of the rear frame 2 of the electric vehicle. There are four first through grooves 3, four grooves 5, four second through grooves 6 and four fixing bolts 10, which are symmetrically arranged on the corresponding connecting pipes 4.

[0030] The use of the first through groove 3, connecting pipe 4, groove 5, second through groove 6, and fixing bolt 10 facilitates the fixing of the electric vehicle front frame 1 and connecting pipe 4. The fixing bolt 10 tightly connects the electric vehicle front frame 1 and electric vehicle rear frame 2 through the first through groove 3 and groove 5, forming a stable whole, preventing loosening after the connection of the electric vehicle front frame 1 and electric vehicle rear frame 2, and improving the structural strength and stability of the electric vehicle. At the same time, the fixing bolt 10 also facilitates the disassembly of the electric vehicle front frame 1 and electric vehicle rear frame 2 during the transportation of the electric vehicle frame, making it easier to disassemble and transport the electric vehicle front frame 1 and electric vehicle rear frame 2 separately, reducing the volume of the electric vehicle frame and improving transportation efficiency.

[0031] The front frame 1 of the electric vehicle has two battery box support frames 8 fixedly connected inside. The front frame 1 of the electric vehicle has an electric vehicle battery box 9, which is fixedly connected to the two battery box support frames 8.

[0032] The fixed electric vehicle battery box 9 can enhance the stability of the battery pack structure, especially in application scenarios where electric vehicles experience frequent vibrations. It can prevent the battery pack structure from becoming loose and extend the service life of the electric vehicle battery box 9 and the battery inside.

[0033] The rear end of the electric vehicle rear frame 2 is hinged to the electric vehicle rear fork 11. The surface of the electric vehicle rear frame 2 is fixedly connected to the fixing plate 7. The upper end of the electric vehicle rear fork 11 is hinged to two shock absorbers 13, and both shock absorbers 13 are hinged to the shock absorber 13.

[0034] The rear fork 11 of the electric vehicle serves as a connecting component between the rear motor and the rear frame 2 of the electric vehicle. Its stability directly affects the driving stability of the electric vehicle and can ensure that the electric vehicle remains stable during driving.

[0035] Shock absorber 13 is hinged to the rear fork 11 of the electric vehicle. It can effectively absorb and mitigate the vibration and impact generated during the ride, improve riding comfort, and at the same time, the presence of shock absorber 13 also protects other parts of the electric vehicle from vibration damage.

[0036] The articulated design of the electric vehicle's rear fork 11 and shock absorber 13 allows these two parts to be easily disassembled and assembled when needed, facilitating the maintenance and replacement of parts on the electric vehicle.

[0037] An electric vehicle rear seat support frame 12 is fixedly connected to the fixed plate 7.

[0038] The electric vehicle rear seat support frame 12 provides additional stability to the electric vehicle by being fixed to the rear end of the electric vehicle rear frame 2. The electric vehicle rear seat support frame 12 is designed to distribute the load of the electric vehicle, making the weight distribution more even, which helps to improve the safety of the electric vehicle while enhancing the vehicle's rigidity.

[0039] The electric vehicle's rear seat support frame 12 also has a passenger-carrying function. In addition to carrying passengers, the rear seat can also be used to carry goods, such as backpacks and shopping bags, increasing the practicality of the electric vehicle.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A gantry frame for electric vehicles that prevents loose connections, characterized in that: It includes the front frame (1) and the rear frame (2) of the electric vehicle; Electric vehicle frame connection assembly, the electric vehicle frame connection assembly is set between the front frame (1) and the rear frame (2) of the electric vehicle, the electric vehicle frame connection assembly includes a connecting pipe (4), the connecting pipe (4) is fixedly connected to the rear frame (2) of the electric vehicle, and the connecting pipe (4) is slidably connected to the front frame (1) of the electric vehicle. The electric vehicle front frame (1) has a first through groove (3) on its surface, the connecting pipe (4) has a groove (5) on its surface, the inner wall of the groove (5) has a second through groove (6), the electric vehicle front frame (1) has a fixing bolt (10) inside, the electric vehicle front frame (1) and the connecting pipe (4) are fixedly connected by the connecting pipe (4), the first through groove (3) and the groove (5) are both hexagonal prisms; The inner walls of the first through groove (3), the groove (5), and the second through groove (6) are all engaged with the fixing bolt (10), and the fixing bolt (10) passes through the front frame (1) of the electric vehicle and the connecting pipe (4).

2. The electric vehicle frame that prevents loosening of connections according to claim 1, characterized in that: There are two connecting pipes (4), which are symmetrically arranged on the left and right sides of the rear frame (2) of the electric vehicle.

3. The electric vehicle frame that prevents loose connections according to claim 1, characterized in that: There are four of each of the first through groove (3), groove (5), second through groove (6) and fixing bolt (10), which are symmetrically arranged on the corresponding connecting pipe (4).

4. The electric vehicle frame that prevents loosening of connections according to claim 1, characterized in that: The electric vehicle front frame (1) has two battery box support frames (8) fixedly connected inside. The electric vehicle front frame (1) has an electric vehicle battery box (9) inside, which is fixedly connected to the two battery box support frames (8).

5. The electric vehicle frame frame for preventing loose connections according to claim 1, characterized in that: The rear end of the electric vehicle rear frame (2) is hinged with an electric vehicle rear fork (11), and a fixing plate (7) is fixedly connected to the surface of the electric vehicle rear frame (2). Two shock absorbers (13) are hinged to the upper end of the electric vehicle rear fork (11), and both shock absorbers (13) are hinged to the shock absorber (13).

6. The electric vehicle frame frame for preventing loose connections according to claim 5, characterized in that: An electric vehicle rear seat support frame (12) is fixedly connected to the fixed plate (7).

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