Front damping cylinder structure of electric vehicle

Abstract

The utility model discloses an electric vehicle front shock absorption cylinder structure which comprises a lower cylinder body and an upper cylinder body, a telescopic column assembly is fixedly connected to the bottom end of the upper cylinder body, a kidney-shaped hole is formed in the side wall of the lower cylinder body in a penetrating mode, limiting sleeves are symmetrically arranged between the lower cylinder body and the upper cylinder body, an auxiliary shock absorption spring is arranged between the two limiting sleeves, and the auxiliary shock absorption spring is arranged between the two limiting sleeves. A main damping spring is arranged in the lower barrel, a threaded connecting groove is formed in the bottom end of the lower barrel, and a threaded sealing cover is in threaded connection with the inner wall of the threaded connecting groove. When shock absorption is conducted through impact force, the two springs are matched with each other to disperse the impact force, and the service life of the springs is prolonged; when the main damping spring is replaced, the auxiliary damping spring can be replaced only by rotating and taking down the threaded sealing cover to replace the main damping spring, rotating the upper cylinder to drive the first cylinder to rotate and separating the first cylinder from the second cylinder, the replacement is convenient, and the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle accessories, in particular to a front shock-absorbing cylinder structure of an electric vehicle. Background Art

[0002] Electric vehicles, also known as electric-driven vehicles, are divided into AC electric vehicles and DC electric vehicles. Electric vehicles are usually referred to as vehicles that use batteries as energy sources and convert electrical energy into mechanical energy through controllers, motors and other components to control the current size to change the speed of the vehicle.

[0003] At present, the front fork of electric vehicles is shock-proofed by a shock-absorbing device. The existing shock-absorbing device is mainly an integrated straight-cylinder structure. When shock-absorbing, it is performed by compressing the shock-absorbing spring. Since only one shock-absorbing spring is used for shock absorption, the shock-absorbing effect is poor. In addition, the shock-absorbing spring is easily deformed during long-term use, which affects the use, and the shock-absorbing spring cannot be quickly replaced. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a front shock absorber cylinder structure for an electric vehicle, which, through the provision of an upper cylinder, a lower cylinder, a telescopic column assembly, a limit sleeve, an auxiliary shock absorber spring and a main shock absorber spring, when shock is absorbed by an impact force, the auxiliary shock absorber spring performs an initial buffering of the impact force, and the main shock absorber spring performs a secondary buffering of the impact force received, and the two springs cooperate with each other to disperse the impact force, thereby increasing the service life of the spring; through the provision of column one, column two, a threaded connection groove and a threaded cover, when the main shock absorber spring needs to be replaced, it is only necessary to rotate and remove the threaded cover to replace the main shock absorber spring, and the upper cylinder is rotated to drive column one to rotate, column one is separated from column two, and the auxiliary shock absorber spring can be replaced, and the replacement is convenient, thereby improving the disassembly and assembly efficiency.

[0005] One of the purposes of the utility model is achieved by the following technical solution: a front shock absorber cylinder structure of an electric vehicle, comprising: a lower cylinder and an upper cylinder, a telescopic column assembly is fixedly connected to the bottom end of the upper cylinder, a waist-shaped hole is formed through the side wall of the lower cylinder, the telescopic column assembly is slidably matched with the waist-shaped hole, a limiting sleeve is symmetrically provided between the lower cylinder and the upper cylinder, an auxiliary shock absorber spring is provided between the two limiting sleeves, a main shock absorber spring is provided inside the lower cylinder, a threaded connection groove is formed at the bottom end of the lower cylinder, and a threaded sealing cover is threadedly connected to the inner wall of the threaded connection groove;

[0006] The telescopic column assembly includes a column body 1 and a column body 2, wherein a threaded connector is provided at the bottom end of the column body 1, a threaded connection hole is provided at the top end of the column body 2, the side wall of the threaded connector is threadedly connected to the inner wall of the threaded connection hole, and the side wall of the column body 2 penetrates and is fixedly connected to a limiting column. Through the upper cylinder, the lower cylinder, the telescopic column assembly, the limiting sleeve, the auxiliary shock-absorbing spring, and the main shock-absorbing spring, when the impact force is subjected to shock absorption, the auxiliary shock-absorbing spring performs the primary buffering of the impact force, and the main shock-absorbing spring performs the secondary buffering of the impact force received, and the two springs mutually disperse the impact force, thereby improving the service life of the spring; through the column body 1, the column body 2, the threaded connection groove, and the threaded cover, when the main shock-absorbing spring needs to be replaced, it is only necessary to rotate and remove the threaded cover to replace the main shock-absorbing spring, rotate the upper cylinder to drive the column body 1 to rotate, separate the column body 1 from the column body 2, and then the auxiliary shock-absorbing spring can be replaced, which is convenient for replacement and improves the efficiency of disassembly and assembly.

[0007] According to the electric vehicle front shock absorber cylinder structure, the bottom end of the second column is fixedly connected with a connecting column, and the bottom end of the connecting column is fixedly connected with a damping block.

[0008] According to the electric vehicle front shock absorber structure, a pressure sensor is installed at the bottom end of the inner wall of the threaded cover, and the position of the pressure sensor corresponds to the position of the damping block.

[0009] A front shock absorber cylinder structure of an electric vehicle is provided, wherein the main shock absorber spring is located below the second column.

[0010] According to the electric vehicle front shock absorber structure, the limiting column is located in the waist-shaped hole, and the outer side wall of the limiting column is slidably connected to the inner side wall of the waist-shaped hole.

[0011] According to the electric vehicle front shock absorber cylinder structure, the inner walls of the two limit sleeves are respectively slidably connected to the outer walls of column one and column two, and the auxiliary shock absorber spring is wound around the outer walls of column one and column two.

[0012] According to the electric vehicle front shock absorber structure, the outer side wall of the threaded cover is provided with anti-skid grooves, and the material of the anti-skid grooves is rubber.

[0013] According to the electric vehicle front shock absorber structure, the pressure sensor signal is connected to a controller, and the controller is located on the electric vehicle.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a three-dimensional diagram of a front shock-absorbing cylinder structure of an electric vehicle according to the utility model;

[0017] Figure 2 This is a structural diagram of a telescopic column assembly of a front shock-absorbing cylinder structure of an electric vehicle according to the utility model;

[0018] Figure 3 This is a structural diagram of the lower cylinder of a front shock-absorbing cylinder structure of an electric vehicle according to the utility model;

[0019] Figure 4 The utility model is a cross-sectional view of a front shock-absorbing cylinder structure of an electric vehicle.

[0020] Legend:

[0021] 1. Lower cylinder; 2. Upper cylinder; 3. Telescopic column assembly; 4. Limit sleeve; 5. Auxiliary shock-absorbing spring; 6. Threaded cover; 7. Main shock-absorbing spring; 8. Pressure sensor; 101. Waist-shaped hole; 102. Threaded connection groove; 301. Column one; 3011. Threaded connector; 302. Column two; 3021. Threaded connection hole; 303. Limit column; 304. Connecting column; 305. Damping block; 601. Anti-slip pattern. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model embodiment provides a front shock-absorbing cylinder structure of an electric vehicle, which comprises: a lower cylinder 1 and an upper cylinder 2, wherein a telescopic column assembly 3 is fixedly connected to the bottom end of the upper cylinder 2, a waist-shaped hole 101 is formed through the side wall of the lower cylinder 1, and the telescopic column assembly 3 is slidably matched with the waist-shaped hole 101, and a limiting sleeve 4 is symmetrically provided between the lower cylinder 1 and the upper cylinder 2, and an auxiliary shock-absorbing spring 5 is provided between the two limiting sleeves 4, and a main shock-absorbing spring 7 is provided inside the lower cylinder 1, and a threaded connection groove 102 is formed at the bottom end of the lower cylinder 1, and a threaded cover 6 is threadedly connected to the inner wall of the threaded connection groove 102, and an anti-slip pattern 601 is provided on the outer wall of the threaded cover 6, and the material of the anti-slip pattern 601 is rubber;

[0024] The telescopic column assembly 3 includes a column 1 301 and a column 2 302. The main shock-absorbing spring 7 is located below the column 2 302. The inner walls of the two limit sleeves 4 are respectively slidably connected with the outer walls of the column 1 301 and the column 2 302. The auxiliary shock-absorbing spring 5 is wound around the outer walls of the column 1 301 and the column 2 302. The bottom end of the column 1 301 is provided with a threaded connector 3011, and the top end of the column 2 302 is provided with a threaded connection hole 3021. The side wall of the threaded connector 3011 is threaded with the inner wall of the threaded connection hole 3021. The side wall of the second column 302 passes through and is fixedly connected with a limiting column 303, the limiting column 303 is located in the waist-shaped hole 101, the outer wall of the limiting column 303 is slidably connected to the inner wall of the waist-shaped hole 101, the bottom end of the second column 302 is fixedly connected with a connecting column 304, the bottom end of the connecting column 304 is fixedly connected with a damping block 305, and a pressure sensor 8 is installed at the bottom end of the inner wall of the threaded cover 6, the position of the pressure sensor 8 corresponds to the position of the damping block 305, the signal of the pressure sensor 8 is connected with a controller, and the controller is located on the electric vehicle. By setting the upper cylinder 2, the lower cylinder 1, the telescopic column assembly 3, the limit sleeve 4, the auxiliary shock-absorbing spring 5, and the main shock-absorbing spring 7, when the impact force is received and the shock is absorbed, the upper cylinder 2 drives the telescopic column assembly 3 to slide in the lower cylinder 1, the auxiliary shock-absorbing spring 5 performs the initial buffering of the impact force, and then squeezes the main shock-absorbing spring 7, and the main shock-absorbing spring 7 performs the secondary buffering of the impact force received, and the two springs cooperate with each other to disperse the impact force, thereby improving the service life of the spring; by setting the column 1 301, the column 2 302, the threaded connection groove 102, the threaded cover 6 When the main shock-absorbing spring 7 needs to be replaced, it is only necessary to rotate the threaded cover 6 to disengage it from the threaded connection groove 102 to release the limit on the main shock-absorbing spring 7 and replace it. When the auxiliary shock-absorbing spring 5 is replaced, the waist-shaped hole 101 limits the limit column 303 to lock the column 2 302, and the upper cylinder 2 drives the column 1 301 to rotate, so that the threaded connection head 3011 disengages from the threaded connection hole 3021, and the column 1 301 can be separated from the column 2 302, and the auxiliary shock-absorbing spring 5 can be replaced. The replacement is convenient and the disassembly and assembly efficiency is improved.

[0025] Working principle: When in use, when the impact force is received for shock absorption, the upper cylinder 2 drives the telescopic column assembly 3 to slide in the lower cylinder 1, and the auxiliary shock-absorbing spring 5 performs the initial buffering of the impact force, and then squeezes the main shock-absorbing spring 7, and the main shock-absorbing spring 7 performs the secondary buffering of the impact force received. The two springs cooperate with each other to disperse the impact force, thereby increasing the service life of the springs. When the damping block 305 presses on the pressure sensor 8, the pressure sensor 8 generates a pressure signal, and the driving controller of the electric vehicle receives the signal, and learns that the service life of the shock-absorbing spring has been reduced and needs to be replaced. When the main shock-absorbing spring 7 needs to be replaced, it is only necessary to rotate the threaded cover 6 to disengage it from the threaded connection groove 102 to release the limit on the main shock-absorbing spring 7 and replace it. When the auxiliary shock-absorbing spring 5 is replaced, the waist-shaped hole 101 limits the limit column 303 to lock the column 2 302, and the upper cylinder 2 drives the column 1 301 to rotate, so that the threaded connection head 3011 disengages from the threaded connection hole 3021, and the column 1 301 can be separated from the column 2 302, and the auxiliary shock-absorbing spring 5 can be replaced. The replacement is convenient and the disassembly and assembly efficiency is improved.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A front shock absorber structure of an electric vehicle, comprising: The lower cylinder (1) and the upper cylinder (2) are characterized in that a telescopic column assembly (3) is fixedly connected to the bottom end of the upper cylinder (2), a waist-shaped hole (101) is formed through the side wall of the lower cylinder (1), the telescopic column assembly (3) and the waist-shaped hole (101) are slidably matched, a limiting sleeve (4) is symmetrically provided between the lower cylinder (1) and the upper cylinder (2), an auxiliary shock-absorbing spring (5) is provided between the two limiting sleeves (4), a main shock-absorbing spring (7) is provided inside the lower cylinder (1), a threaded connection groove (102) is formed at the bottom end of the lower cylinder (1), and a threaded sealing cover (6) is threadedly connected to the inner wall of the threaded connection groove (102); The telescopic column assembly (3) comprises a column body 1 (301) and a column body 2 (302); the bottom end of the column body 1 (301) is provided with a threaded connection head (3011); the top end of the column body 2 (302) is provided with a threaded connection hole (3021); the side wall of the threaded connection head (3011) is threadedly connected to the inner wall of the threaded connection hole (3021); and the side wall of the column body 2 (302) passes through and is fixedly connected to a limiting column (303).

2. The front shock absorber structure of an electric vehicle according to claim 1, characterized in that: The bottom end of the second column (302) is fixedly connected to a connecting column (304), and the bottom end of the connecting column (304) is fixedly connected to a damping block (305).

3. The front shock absorber structure of an electric vehicle according to claim 1, characterized in that: A pressure sensor (8) is installed at the bottom end of the inner wall of the threaded cover (6), and the position of the pressure sensor (8) corresponds to the position of the damping block (305).

4. The front shock absorber structure of an electric vehicle according to claim 1, characterized in that: The main shock absorbing spring (7) is located below the second column (302).

5. The front shock absorber structure of an electric vehicle according to claim 1, characterized in that: The limiting column (303) is located in the waist-shaped hole (101), and the outer side wall of the limiting column (303) is slidably connected to the inner side wall of the waist-shaped hole (101).

6. The electric vehicle front shock absorber structure according to claim 1, characterized in that: The inner walls of the two limiting sleeves (4) are respectively slidably connected to the outer walls of the first column (301) and the second column (302), and the auxiliary shock absorbing spring (5) is wound around the outer walls of the first column (301) and the second column (302).

7. The front shock absorber structure of an electric vehicle according to claim 1, characterized in that: The outer side wall of the threaded cover (6) is provided with anti-slip grooves (601), and the material of the anti-slip grooves (601) is rubber.

8. The front shock absorber structure of an electric vehicle according to claim 3, characterized in that: The pressure sensor (8) is signal-connected to a controller, and the controller is located on the electric vehicle.

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