Rear fork of electric vehicle

Abstract

The utility model discloses an electric bicycle rear fork, and particularly relates to the technical field of electric bicycles, the electric bicycle rear fork comprises a connecting piece body, a bicycle rear fork assembling and fixing device is arranged at the front end of the connecting piece body, and the bicycle rear fork assembling and fixing device comprises a rear fork blocking and protecting plate connecting assembly and a convenient assembling assembly. Compared with the prior art, the rear fork of the electric vehicle has the advantages that the components are spliced and assembled in a multi-assembly mode, the problem that part of damaged components can be detached and replaced when the components are used is solved, the maintenance convenience of the whole device is effectively improved, and the service life of the whole device is prolonged. And the problem that the maintenance cost is increased due to overall replacement is avoided, parts needing to be assembled in the later period are mounted and spliced through the convenient and fast assembling assemblies mounted on the side edges, and the mounting and dismounting adaptability and mounting and dismounting convenience of the whole device are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bicycles, and more specifically, to a rear cross member of an electric vehicle. Background Art

[0002] An electric vehicle refers to a mechatronic personal transportation vehicle that uses a storage battery as an auxiliary energy source and is equipped with a motor, a controller, a storage battery, a handlebar grip, a brake lever and other control components and a display instrument system on the basis of an ordinary bicycle. The vehicle frame is one of the main components of an electric vehicle, and the quality thereof is directly related to the personal safety of users. The structural form of the vehicle frame should meet the requirements of its functions (assemblability, etc.), performance (rigidity, strength, etc.) and commerciality. The rear cross member of an electric bicycle is an important load-bearing component connecting the vehicle frame and the rear wheel.

[0003] In the prior art, the rear cross member of an electric vehicle is composed of a plurality of pipe fittings and plate materials welded together. This results in relatively high welding costs, and welding errors can also cause parts to be scrapped, increasing production costs and affecting production efficiency. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a rear cross member of an electric vehicle to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solution: a rear cross member of an electric vehicle, including a connector body, wherein a bicycle rear cross member assembly fixing device is arranged at the front end of the connector body, and the bicycle rear cross member assembly fixing device includes: a cross member fender connection assembly and a convenient assembly component. The convenient assembly component is arranged on the side outer wall of the connector body and the cross member fender connection assembly, and the cross member fender connection assembly is arranged at the front end of the connector body.

[0006] In a preferred embodiment, the cross member fender connection assembly includes: a left rear cross member body, a right rear cross member body, a first shock absorber plate assembly frame and a second shock absorber plate assembly frame. The rear ends of the first shock absorber plate assembly frame and the second shock absorber plate assembly frame are respectively installed at the front ends of the left rear cross member body and the right rear cross member body, and the rear ends of the left rear cross member body and the right rear cross member body are installed at the rear sides of both sides of the connector body.

[0007] In a preferred embodiment, the convenient assembly component includes: a first external mounting cover, an external assembly hole group, an assembly bolt, a third external mounting cover, a mounting inner groove, a mudguard mounting frame and a second external mounting cover. There are two groups of the second external mounting cover and the first external mounting cover, and the two groups of the second external mounting cover are respectively installed at the rear end of the mudguard mounting frame and the lower rear side of the connector body.

[0008] In a preferred embodiment, the second external mounting cover is adapted to two groups of sizes, and the first external mounting cover, external assembly hole group, assembly bolts and mounting embedded grooves are each provided with two groups, and the two groups of mounting embedded grooves are respectively opened on the outer walls on both sides of the left rear flat fork body and the right rear flat fork body.

[0009] In a preferred embodiment, the external assembly hole group is opened on the inner and outer walls of the first external mounting cover, the front end of the assembly bolt is installed on the inner wall of the first external mounting cover, and the assembly bolt and the external assembly hole group are matched in size.

[0010] In a preferred embodiment, both sides of the rear end of the first external mounting cover are arranged at the front end of the mounting embedded groove, and both sides of the rear end of the first external mounting cover are fixedly mounted on the side outer walls of the left rear fork body and the right rear fork body.

[0011] In a preferred embodiment, two groups of the third external mounting covers are provided, and the rear ends of the two groups of third external mounting covers are respectively installed on the outer walls of the left rear fork body and the right rear fork body, and the third external mounting cover is provided at the rear end of the first external mounting cover.

[0012] Technical effects and advantages of this utility model:

[0013] An electric vehicle rear fork, compared with the existing technology, has components that are spliced and assembled through multiple assembly methods, which solves the problem of parts being damaged during use and can be disassembled for replacement, effectively improving the maintenance convenience of the entire device and avoiding the problem of increased maintenance costs due to overall replacement. The device uses convenient assembly components installed on the side to install and splice parts that need to be assembled later, greatly improving the installation and disassembly adaptability and installation and disassembly convenience of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 The figure is a schematic structural diagram of the assembly and fixing device for a bicycle rear flat fork according to the present invention.

[0016] Figure 3 This is a schematic structural diagram of the flat fork guard plate connection assembly of the present utility model.

[0017] Figure 4 This is a schematic diagram of the convenient assembly component structure of the present utility model.

[0018] The reference numerals are as follows: 1, the connecting piece body; 2, the assembly and fixing device for the rear flat fork of the bicycle; 21, the connecting component for the flat fork fender; 211, the left rear flat fork body; 212, the right rear flat fork body; 213, the second shock absorber plate assembly frame; 214, the first shock absorber plate assembly frame; 22, the convenient assembly component; 221, the first external mounting cover; 222, the external assembly hole group; 223, the mounting inner groove; 224, the assembly bolt; 225, the third external mounting cover; 226, the second external mounting cover; 227, the fender mounting frame. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As shown in the attached Figures 1-4 figure, the present invention provides a rear flat fork for an electric vehicle, including a connecting piece body 1. A bicycle rear flat fork assembly and fixing device 2 is provided at the front end of the connecting piece body 1. The bicycle rear flat fork assembly and fixing device 2 includes: a flat fork fender connecting component 21 and a convenient assembly component 22. The convenient assembly component 22 is arranged on the side outer walls of the connecting piece body 1 and the flat fork fender connecting component 21, and the flat fork fender connecting component 21 is arranged at the front end of the connecting piece body 1.

[0021] The flat fork fender connecting component 21 includes: a left rear flat fork body 211, a right rear flat fork body 212, a first shock absorber plate assembly frame 214 and a second shock absorber plate assembly frame 213. The rear ends of the first shock absorber plate assembly frame 214 and the second shock absorber plate assembly frame 213 are respectively installed at the front ends of the left rear flat fork body 211 and the right rear flat fork body 212, and the rear ends of the left rear flat fork body 211 and the right rear flat fork body 212 are installed on both sides of the rear end of the connecting piece body 1.

[0022] The convenient assembly component 22 includes: a first external mounting cover 221, an external assembly hole group 222, an assembly bolt 224, a third external mounting cover 225, a mounting inner groove 223, a fender mounting bracket 227, and a second external mounting cover 226. There are two sets of the second external mounting cover 226 and the first external mounting cover 221, and the two sets of the second external mounting cover 226 are respectively installed at the rear end of the fender mounting bracket 227 and the lower rear side of the connector body 1. The two sets of the second external mounting cover 226 are of suitable sizes and models. There are two sets of the first external mounting cover 221, the external assembly hole group 222, the assembly bolt 224, and the mounting inner groove 223. The two sets of the mounting inner grooves 223 are respectively opened on the outer walls on both sides of the left rear fork body 211 and the right rear fork body 212. The external assembly hole group 222 is opened on the inner and outer walls of the first external mounting cover 221. The front end of the assembly bolt 224 is installed on the inner wall of the first external mounting cover 221. The assembly bolt 224 and the external assembly hole group 222 are of suitable sizes and models. The two sides at the rear end of the first external mounting cover 221 are arranged at the front end of the mounting inner groove 223. The two sides at the rear end of the first external mounting cover 221 are fixedly installed on the outer side walls of the left rear fork body 211 and the right rear fork body 212. There are two sets of the third external mounting cover 225, and the rear ends of the two sets of the third external mounting cover 225 are respectively installed on the outer walls of the left rear fork body 211 and the right rear fork body 212. The third external mounting cover 225 is arranged at the rear end of the first external mounting cover 221.

[0023] The specific implementation method is as follows: When using the present utility model, it is necessary to install the first shock absorber plate assembly frame 214 and the second shock absorber plate assembly frame 213 at the front ends of the left rear fork body 211 and the right rear fork body 212, and install the rear ends of the left rear fork body 211 and the right rear fork body 212 at the front end of the connector body 1. When the flat fork fender connection component 21 is installed by means of segmented assembly, the problem of the entire component being scrapped due to incorrect installation and welding of components is avoided. The components are spliced and assembled through multiple assembly methods, solving the problem that some components can be disassembled and replaced when they are damaged during use, effectively improving the maintenance convenience of the entire device and avoiding the problem of increased maintenance costs caused by overall replacement. The device installs and joins the parts that need to be assembled later through the conveniently assembled component 22 installed on the side, greatly improving the installation and disassembly adaptability and convenience of the entire device.

[0024] Working principle of the utility model: When using the utility model, it is necessary to install the first shock-absorbing plate assembly frame 214 and the second shock-absorbing plate assembly frame 213 at the front ends of the left rear fork body 211 and the right rear fork body 212, and install the rear ends of the left rear fork body 211 and the right rear fork body 212 at the front end of the connecting piece body 1. When the flat fork guard connection assembly 21 is installed in a segmented assembly manner, the problem of the entire component being scrapped due to incorrect installation and welding of components is avoided. The components are spliced and assembled through multiple assembly methods, and the problem that some components can be disassembled and replaced when they are damaged during use is solved, effectively improving the maintenance convenience of the entire device.

[0025] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the internal communication of two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0026] Second: In the attached drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0027] Finally: The above description is only the preferred embodiment of the utility model and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electric vehicle rear swing arm, comprising a connecting member body (1), characterized in that: A bicycle rear flat fork assembly and fixing device (2) is provided at the front end of the connecting piece body (1). The bicycle rear flat fork assembly and fixing device (2) includes: a flat fork fender connecting component (21) and a convenient assembly component (22). The convenient assembly component (22) is arranged on the outer side walls of the connecting piece body (1) and the flat fork fender connecting component (21), and the flat fork fender connecting component (21) is arranged at the front end of the connecting piece body (1).

2. The rear swing arm of an electric vehicle according to claim 1, characterized in that: The flat fork fender connecting component (21) includes: a left rear flat fork body (211), a right rear flat fork body (212), a first shock absorber plate assembly frame (214), and a second shock absorber plate assembly frame (213). The rear ends of the first shock absorber plate assembly frame (214) and the second shock absorber plate assembly frame (213) are respectively installed at the front ends of the left rear flat fork body (211) and the right rear flat fork body (212), and the rear ends of the left rear flat fork body (211) and the right rear flat fork body (212) are installed on both sides of the rear end of the connecting piece body (1).

3. The rear swing arm of an electric vehicle according to claim 2, wherein: The convenient assembly component (22) includes: a first external mounting cover (221), an external assembly hole group (222), an assembly bolt (224), a third external mounting cover (225), a mounting inner recess (223), a fender mounting frame (227), and a second external mounting cover (226). There are two sets of the second external mounting covers (226) and the first external mounting covers (221), and the two sets of the second external mounting covers (226) are respectively installed at the rear end of the fender mounting frame (227) and the lower rear side of the connecting piece body (1).

4. The rear swing arm of an electric vehicle according to claim 3, characterized in that: The two sets of the second external mounting covers (226) are of suitable size models. There are two sets of the first external mounting covers (221), the external assembly hole group (222), the assembly bolts (224), and the mounting inner recesses (223), and the two sets of the mounting inner recesses (223) are respectively opened on the outer side walls of the left rear flat fork body (211) and the right rear flat fork body (212).

5. The rear swing arm of an electric vehicle according to claim 3, wherein: The external assembly hole group (222) is opened on the inner and outer walls of the first external mounting cover (221). The front end of the assembly bolt (224) is installed on the inner wall of the first external mounting cover (221), and the assembly bolt (224) and the external assembly hole group (222) are of suitable size models.

6. The rear swing arm of an electric vehicle according to claim 3, characterized in that: The two sides of the rear end of the first external mounting cover (221) are arranged at the front end of the mounting inner recess (223), and the two sides of the rear end of the first external mounting cover (221) are fixedly installed on the outer side walls of the left rear flat fork body (211) and the right rear flat fork body (212).

7. The rear swing arm of an electric vehicle according to claim 3, wherein: There are two sets of the third external mounting covers (225), and the rear ends of the two sets of the third external mounting covers (225) are respectively installed on the outer walls of the left rear flat fork body (211) and the right rear flat fork body (212). The third external mounting cover (225) is arranged at the rear end of the first external mounting cover (221).

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