Dual hydraulic damping shock absorber for front fork of electric vehicle

Abstract

The utility model relates to the technical field of electric vehicle shock absorption, and discloses a double hydraulic damping shock absorber for an electric vehicle front fork, which comprises two mounting plates symmetrically arranged, a plurality of mounting holes are arranged on one side of each mounting plate in an array penetrating manner, and the mounting plates are arranged in the mounting holes. The middle of one side of each installation disc is fixedly connected with an installation mechanism, a shock absorption mechanism is arranged above each installation mechanism, and a damping shock absorption mechanism is arranged above each shock absorption mechanism. According to the electric vehicle damping device, a better wheel damping effect can be provided while it is guaranteed that a vehicle body is not subjected to large vibration, and therefore it can be better guaranteed that the vehicle body keeps stable in the running process when encountering a large undulating road surface, and the riding stability and safety of an electric vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle shock absorption, in particular to a double hydraulic damping shock absorber for an electric vehicle front fork. Background Technique

[0002] A hydraulic damper is a hydraulic feed speed control device that can freely adjust the cylinder feed speed from low speed to high speed within the desired range. The control methods are of two types: spring return type and air return type, which can be selected according to the application. A damper is a device that provides resistance to motion and dissipates motion energy. Using damping to absorb energy and reduce vibration is not a new technology. Various dampers have long been used in industries such as aerospace, aviation, military, guns, and automobiles to reduce vibration and dissipate energy;

[0003] At present, the existing hydraulic damping shock absorbers for electric vehicle front forks on the market have a simple structure. Although they can achieve the function of shock absorption, when the electric vehicle is running, it often passes through some deep potholes and high speed bumps. The shock absorption effect of a single hydraulic damper cannot reach the best. The damper cannot shrink to the maximum extent to reduce the vibration of the wheels, resulting in a low driving safety factor and a poor driving feeling of the electric vehicle. On the other hand, the shock absorber is easily damaged and needs to be replaced during the use of the electric vehicle. However, when replacing, the entire front wheel of the electric vehicle needs to be disassembled, and the replacement takes a long time and effort, which is time-consuming and laborious. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a double hydraulic damping shock absorber for an electric vehicle front fork, which solves the problems of poor front wheel shock absorption effect and time-consuming replacement of the damping shock absorber.

[0005] To achieve the above object, the utility model is realized through the following technical solutions: A double hydraulic damping shock absorber for an electric vehicle front fork, including mounting plates. There are two mounting plates in total and they are symmetrically arranged. A number of mounting holes are arrayed and penetrated through one side of each mounting plate. A mounting mechanism is fixedly connected to the middle of one side of each mounting plate. A shock absorption mechanism is arranged above each mounting mechanism. A damping shock absorption mechanism is arranged above each shock absorption mechanism. The shock absorption mechanism includes a fixed column, a sliding column, a shock absorption spring, a limiting column, and a shock absorption fixing plate. The upper end of the fixed column is fixedly connected to the sliding column. A limiting column is arranged at the upper end of the sliding column and is slidably connected through the lower end of the limiting column. A shock absorption spring is arranged inside the limiting column. The upper end of the limiting column is fixedly connected to the shock absorption fixing plate.

[0006] Preferably, the installation mechanism includes an installation limit block, an installation through hole, and a fixing bolt. The installation limit block is fixedly connected to the middle of one side of the installation disc. An installation through hole is penetrated and opened on the upper surface of the installation limit block. A fixing bolt is arranged on one side of the installation through hole. One end of the fixing bolt penetrates through one side of the installation limit block and the fixing column and is threadedly connected to the lower end of the fixing column.

[0007] Preferably, the lower end of the fixing column is slidably arranged through the interior of the installation through hole.

[0008] Preferably, the damping shock absorption mechanism includes a damping fixed disc, a fixing bolt, a hydraulic damping groove, a damping spring, a hydraulic column, a placement cabin, and a solenoid valve. The damping fixed disc is arranged above the shock absorption fixed disc and is fixedly connected to the shock absorption fixed disc through the fixing bolt.

[0009] Preferably, a hydraulic damping groove is fixedly connected to the middle of the upper end of the damping fixed disc. A hydraulic column is slidably arranged through the interior of the hydraulic damping groove. A damping spring is fixedly connected to the upper end of the hydraulic damping groove.

[0010] Preferably, the damping spring is wound around the outside of the hydraulic column. The damping spring and the upper end of the hydraulic column are fixedly connected to a placement cabin.

[0011] Preferably, a solenoid valve is fixedly connected to the middle of the inner bottom of the placement cabin. A flow channel is penetrated and opened in the interior of the hydraulic column. Beneficial effects

[0012] The utility model provides a double hydraulic damping shock absorber for an electric vehicle front fork. Compared with the prior art, the following beneficial effects are achieved:

[0013] In the utility model, through the arranged shock absorption mechanism, during the driving of the electric vehicle, when the electric vehicle encounters a large bumpy and undulating ground, the shock absorption spring will be stressed, and the sliding column will squeeze the shock absorption spring along with the ups and downs of the wheel, so as to achieve a shock absorption effect beyond the damping shock absorption mechanism itself. It can provide a better wheel shock absorption effect while ensuring that the vehicle body will not be greatly shaken, so as to ensure that when encountering a large undulating road surface, the vehicle body can better maintain a stable effect during driving, improve the stability and safety of the electric vehicle during riding. At the same time, by arranging the shock absorption spring inside the limit column, the shock absorption spring can be better protected from wear during driving, the service life of the shock absorption spring can be prolonged, and thus the use effect of the device can be improved;

[0014] In the present utility model, through the provided installation mechanism and shock-absorbing fixing plate, during use, if the shock-absorbing mechanism is worn out, the fixing bolts can be removed to release the fixation between the shock-absorbing fixing plate and the damping fixing plate, and then the fixation between the fixing bolt and the fixing column can be disassembled, so that the shock-absorbing mechanism can be quickly disassembled without removing the wheel, realizing the quick replacement of the shock-absorbing mechanism, thereby improving the maintenance efficiency of the device;

[0015] In the present utility model, through the provided damping shock-absorbing mechanism, when the device is in use, the solenoid valve can be opened at this time, and then the hydraulic oil can flow into the lower end of the hydraulic damping groove through the flow groove inside the hydraulic column, thereby adjusting the damping effect of the damping shock-absorbing mechanism, so as to adjust the damping effect of the device according to the actual use situation or the driving scenario of the electric vehicle, and can adjust the damping effect of the device according to the actual situation of the driver, thereby further improving the driving effect of the electric vehicle and enhancing the driving safety and comfort. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a dual hydraulic damping shock absorber for an electric vehicle front fork proposed by the present utility model;

[0017] Figure 2 It is an installation structural schematic diagram of a dual hydraulic damping shock absorber for an electric vehicle front fork proposed by the present utility model;

[0018] Figure 3 It is a structural schematic diagram of the shock-absorbing mechanism of a dual hydraulic damping shock absorber for an electric vehicle front fork proposed by the present utility model;

[0019] Figure 4 It is a structural schematic diagram of the damping shock-absorbing mechanism of a dual hydraulic damping shock absorber for an electric vehicle front fork proposed by the present utility model.

[0020] Legend Explanation:

[0021] 1. Installation plate; 2. Installation hole; 3. Installation mechanism; 301. Installation limit block; 302. Installation through hole; 303. Fixing bolt; 4. Shock-absorbing mechanism; 401. Fixing column; 402. Sliding column; 403. Shock-absorbing spring; 404. Limit column; 405. Shock-absorbing fixing plate; 5. Damping shock-absorbing mechanism; 501. Damping fixing plate; 502. Fixing bolt; 503. Hydraulic damping groove; 504. Damping spring; 505. Hydraulic column; 506. Placing compartment; 507. Solenoid valve. Detailed Embodiment

[0022] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , the present invention provides two technical solutions, specifically including the following embodiments: Embodiment

[0024] A double hydraulic damping shock absorber for an electric vehicle front fork, including mounting plates 1. There are two mounting plates 1 in total and they are symmetrically arranged. A number of mounting holes 2 are arranged in an array on one side of each mounting plate 1. The two mounting plates 1 are fixed to both sides of the wheel by bolts passing through the mounting holes 2. A mounting mechanism 3 is fixedly connected to the middle of one side of each mounting plate 1. A shock absorption mechanism 4 is arranged above each mounting mechanism 3. A damping shock absorption mechanism 5 is arranged above each shock absorption mechanism 4. The shock absorption mechanism 4 includes a fixed column 401, a sliding column 402, a shock absorption spring 403, a limiting column 404 and a shock absorption fixing plate 405. The upper end of the fixed column 401 is fixedly connected to the sliding column 402. The upper end of the sliding column 402 is provided with a limiting column 404 and is slidably connected through the lower end of the limiting column 404. A shock absorption spring 403 is arranged inside the limiting column 404. The upper end of the limiting column 404 is fixedly connected to the shock absorption fixing plate 405.

[0025] During operation, the two mounting plates 1 are fixed to both sides of the wheel by bolts passing through the mounting holes 2. During the driving of the electric vehicle, when the electric vehicle encounters large potholes and undulating ground, the shock absorption spring 403 will be stressed. The sliding column 402 squeezes the shock absorption spring 403 as the wheel undulates, so that the upper end of the sliding column 402 slides inside the limiting column 404, thereby achieving a shock absorption effect other than that of the damping shock absorption mechanism 5 itself. It can provide a better wheel shock absorption effect while ensuring that the body will not be greatly shaken, thus ensuring that when encountering a large undulating road surface, the body can be better kept stable during driving, improving the stability and safety of the electric vehicle during riding. At the same time, setting the shock absorption spring 403 inside the limiting column 404 can better protect the shock absorption spring 403 from being worn during driving, improve the service life of the shock absorption spring 403, and thus improve the use effect of the device. Embodiment

[0026] On the basis of the first embodiment, the installation mechanism 3 includes an installation limit block 301, an installation through hole 302, and a fixing bolt 303. The installation limit block 301 is fixedly connected to the middle of one side of the installation disk 1. An installation through hole 302 is formed through the upper surface of the installation limit block 301. A fixing bolt 303 is arranged on one side of the installation through hole 302. The fixing bolt 303 is threadedly connected to the installation limit block 301 itself. The lower end of the fixing column 401 is slidably arranged through the installation through hole 302. One end of the fixing bolt 303 passes through one side of the installation limit block 301 and the fixing column 401 and is threadedly connected to the lower end of the fixing column 401. The damping mechanism 4 is fixed to the installation limit block 301 by the fixing bolt 303, and at the same time, it is also convenient for the disassembly of the damping mechanism 4. The damping shock absorption mechanism 5 includes a damping fixed disk 501, a fixing bolt 502, a hydraulic damping groove 503, a damping spring 504, a hydraulic column 505, a placement cabin 506, and a solenoid valve 507. The damping fixed disk 501 is arranged above the shock absorption fixed disk 405 and is fixedly connected to the shock absorption fixed disk 405 by the fixing bolt 502. The middle of the upper end of the damping fixed disk 501 is fixedly connected to the hydraulic damping groove 503. A hydraulic column 505 is slidably arranged through the hydraulic damping groove 503. A damping spring 504 is fixedly connected to the upper end of the hydraulic damping groove 503. The damping spring 504 is wound around the outside of the hydraulic column 505. The upper ends of the damping spring 504 and the hydraulic column 505 are fixedly connected to the placement cabin 506. Hydraulic oil is placed inside the placement cabin 506. A solenoid valve 507 is fixedly connected to the middle of the inner bottom of the placement cabin 506. A flow channel is formed through the hydraulic column 505, and the hydraulic oil can flow into the inside of the hydraulic damping groove 503 through the flow channel inside the hydraulic column 505;

[0027] When the device is in use, the solenoid valve 507 can be opened at this time. Subsequently, the hydraulic oil can flow into the lower end inside the hydraulic damping groove 503 through the flow channel inside the hydraulic column 505, so as to adjust the damping effect of the damping shock absorption mechanism 5, and thus adjust the damping effect of the device according to the actual use situation or the driving scenario of the electric vehicle. The damping effect of the device can be adjusted according to the actual situation of the driver, so as to further improve the driving effect of the electric vehicle and improve the driving safety and comfort.

[0028] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the application shall be included in the protection scope of the present application.

Claims

1. A dual hydraulic damping shock absorber for an electric vehicle front fork, comprising a mounting disc (1), characterized in that: There are two installation disks (1) in total and they are symmetrically arranged. A number of installation holes (2) are arrayed and penetrated through one side of each installation disk (1). A mounting mechanism (3) is fixedly connected to the middle of one side of each installation disk (1). A shock absorption mechanism (4) is arranged above each mounting mechanism (3). A damping shock absorption mechanism (5) is arranged above each shock absorption mechanism (4). The shock absorption mechanism (4) includes a fixed column (401), a sliding column (402), a shock absorption spring (403), a limit column (404) and a shock absorption fixed disk (405). The upper end of the fixed column (401) is fixedly connected to the sliding column (402). A limit column (404) is arranged at the upper end of the sliding column (402) and is slidably connected through the lower end of the limit column (404). A shock absorption spring (403) is arranged inside the limit column (404). The upper end of the limit column (404) is fixedly connected to the shock absorption fixed disk (405).

2. The dual hydraulic damping shock absorber for the front fork of an electric vehicle according to claim 1, wherein: The mounting mechanism (3) includes a mounting limit block (301), a mounting through hole (302) and a fixing bolt (303). The mounting limit block (301) is fixedly connected to the middle of one side of the installation disk (1). A mounting through hole (302) is penetrated and opened on the upper surface of the mounting limit block (301). A fixing bolt (303) is arranged on one side of the mounting through hole (302). One end of the fixing bolt (303) penetrates through one side of the mounting limit block (301) and the fixed column (401) and is threadedly connected to the lower end of the fixed column (401).

3. A dual hydraulic damping shock absorber for an electric vehicle front fork according to claim 1, characterized in that: The lower end of the fixed column (401) is slidably arranged through the inside of the mounting through hole (302).

4. A double hydraulic damping shock absorber for an electric vehicle front fork according to claim 1, characterized in that: The damping shock absorption mechanism (5) includes a damping fixed disk (501), a fixing bolt (502), a hydraulic damping groove (503), a damping spring (504), a hydraulic column (505), a placement chamber (506) and a solenoid valve (507). The damping fixed disk (501) is arranged above the shock absorption fixed disk (405) and is fixedly connected to the shock absorption fixed disk (405) through the fixing bolt (502).

5. A double hydraulic damping shock absorber for an electric vehicle front fork according to claim 4, characterized in that: The middle of the upper end of the damping fixed disk (501) is fixedly connected to the hydraulic damping groove (503). A hydraulic column (505) is slidably arranged through the inside of the hydraulic damping groove (503). The upper end of the hydraulic damping groove (503) is fixedly connected to the damping spring (504).

6. A dual hydraulic damping shock absorber for an electric vehicle front fork according to claim 4, characterized in that: The damping spring (504) is wound around the outside of the hydraulic column (505). The damping spring (504) and the hydraulic column (505) are fixedly connected to the placement chamber (506) at the upper end.

7. A dual hydraulic damping shock absorber for an electric vehicle front fork according to claim 4, characterized in that: The middle of the inner bottom of the placement chamber (506) is fixedly connected to the solenoid valve (507). A flow channel is penetrated and opened inside the hydraulic column (505).

Images