Rear suspension damping device for electric vehicle

Abstract

The utility model belongs to the field of damping devices, particularly relates to a rear suspension damping device for an electric vehicle, and aims to solve the problems that when the conventional rear suspension damping device for the electric vehicle is used and the damping device is damaged and needs to be disassembled and maintained, a damping spring is generally in a compressed state; in order to overcome the defects that in the prior art, when a damping device is disassembled, other parts are prone to being bounced away by a damping spring, and certain installation hidden danger and inconvenience exist, the following scheme is provided, the rear suspension damping device for the electric vehicle is included, and the rear suspension damping device comprises a sleeve, a damping mechanism and an adjusting mechanism. According to the rear suspension damping device, through cooperation of all the components, triple buffering and damping can be conducted on the rear suspension damping device, the buffering effect is good, the effect that other components are prevented from being bounced off by the damping spring when the rear suspension damping device is maintained is achieved, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbing devices, in particular to a rear suspension shock absorbing device for an electric vehicle. Background Art

[0002] The suspension and shock absorber of electric vehicles is an important component to ensure riding comfort. At the same time, as a force transmission device connecting the frame and the axle, the suspension and shock absorber of electric vehicles is also an important component to ensure the driving safety of electric vehicles.

[0003] The prior art has a poor buffering effect on external forces when passing through continuous bumpy sections, and the shock-absorbing spring is prone to elastic fatigue. In response to the above problem, the application number is: 202023140498.1, which discloses a rear suspension shock-absorbing device for an electric vehicle, comprising a cylindrical cylinder, a first shock-absorbing spring is arranged in the inner cavity of the cylindrical cylinder, an upper piston and a lower piston are fixedly connected at the upper and lower ends of the first shock-absorbing spring, an upper guide rod is fixedly arranged on the top of the upper piston, and a top plate is fixedly arranged on the top of the upper guide rod. The first shock-absorbing spring can perform a first buffering and shock-absorbing on the rear suspension shock-absorbing device, and the second buffering spring can perform a second buffering and shock-absorbing on the rear suspension shock-absorbing device. By arranging the upper piston and the lower piston, the upper piston and the lower piston can compress the air in the inner cavity of the cylindrical cylinder during the buffering and shock-absorbing process, and the air can perform a third buffering and shock-absorbing on the suspension shock-absorbing device, so that the suspension shock-absorbing device can be triple buffered and shock-absorbing, and the buffering effect is good. By arranging a support column, the support column can support the first shock-absorbing spring, so as to prevent the first shock-absorbing spring from being subjected to excessive force deformation and causing elastic fatigue.

[0004] However, after reading the above patent documents, the following problems are found: when in use, when the shock absorbing device is damaged and needs to be disassembled for repair, since the shock absorbing spring is generally in a compressed state, other components are easily bounced off by the shock absorbing spring when the shock absorbing device is disassembled, there are certain installation risks and inconveniences, which need to be improved. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a rear suspension shock absorbing device for an electric vehicle.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rear suspension shock absorbing device for an electric vehicle, comprising a rear suspension shock absorbing device for an electric vehicle, wherein the rear suspension shock absorbing device comprises a sleeve, a shock absorbing mechanism and an adjusting mechanism;

[0008] The sleeve is provided with a shock absorbing mechanism, and the adjusting mechanism is arranged on the sleeve and connected with the shock absorbing mechanism;

[0009] The adjustment mechanism comprises a threaded rod, a baffle and a hinged support, the sleeve is threadedly connected with the threaded rod, the baffle is rotatably connected with the threaded rod, and one end of the threaded rod is welded with the hinged support;

[0010] The shock absorbing mechanism includes a round tube, a mounting plate, a shock absorbing spring and a round plate. The round tube is slidably connected to the sleeve, and one end of the round tube is fixedly connected to the mounting plate. The sleeve and the round tube are sleeved with the same shock absorbing spring. Through the coordinated design of the sleeve, the shock absorbing mechanism and the adjustment mechanism, not only can the rear suspension shock absorbing device be triple-buffered and shock-absorbing with good buffering effect, but also the shock absorbing spring can be prevented from bouncing other components when the rear suspension shock absorbing device is repaired, thereby improving safety. In addition, the structure is simple and easy to operate, which improves convenience and practicality.

[0011] Specifically, the two ends of the shock-absorbing spring are respectively connected to the baffle and the mounting plate, one end of the round tube is fixedly sleeved with a circular plate, and the circular plate is slidably connected to the sleeve. The shock-absorbing spring can achieve the first buffering and shock absorption of the rear suspension shock-absorbing device.

[0012] Specifically, a through hole is provided on the circular plate, and hydraulic oil is provided in the sleeve. The hydraulic oil in the sleeve flows on the left and right sides of the circular plate through the effect of the through hole.

[0013] Specifically, a groove 1 is opened on the circular plate, a sealing ring 2 is fixedly installed in the groove 1, and the sealing ring 2 is slidably connected to the sleeve to improve the sealing performance and prevent the leakage of hydraulic oil.

[0014] Specifically, a sealing ring 1 is provided on the sliding sleeve of the circular tube, and the outer wall of the sealing ring 1 is fixedly connected to the sleeve, thereby further improving the sealing performance.

[0015] Specifically, a bearing is fixedly sleeved on the threaded rod, and an outer wall of the bearing is fixedly connected to the baffle to facilitate the rotation of the threaded rod.

[0016] Specifically, the mounting plate is provided with mounting holes to facilitate the connection between the mounting plate and external devices.

[0017] Specifically, a connecting portion is provided on the sleeve, an internal thread is provided in the connecting portion, the internal thread is matched with the threaded rod, and the round tube is slidably connected to the connecting portion to improve stability and prevent the threaded rod from shaking.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The utility model provides a rear suspension shock absorbing device for an electric vehicle. Through the coordinated design of the shock absorbing mechanism, the adjustment mechanism and the sleeve, the rear suspension shock absorbing device can be triple-buffered and has a good buffering effect.

[0020] (2) The utility model is a rear suspension shock absorbing device for an electric vehicle. By rotating the hinged support, the threaded rod rotates on the baffle plate and performs threaded transmission with the sleeve, so that the threaded rod extends outward. At the same time, the threaded rod drives the baffle plate to move synchronously, thereby increasing the distance between the baffle plate and the mounting plate, thereby gradually releasing the elastic potential energy of the shock absorbing spring, thereby achieving the effect of preventing the shock absorbing spring from ejecting other components when repairing the rear suspension shock absorbing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following will briefly introduce the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and the structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in the utility model, so they have no technical substantive significance, and any structural modification, change in proportional relationship or adjustment of size.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a rear suspension shock absorbing device for an electric vehicle proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the main structural anatomy of a rear suspension shock absorbing device for an electric vehicle proposed by the utility model;

[0024] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 It is a schematic diagram of the structure of the casing and the internal thread.

[0026] In the figure: 1. sleeve; 2. round tube; 3. mounting plate; 4. threaded rod; 5. baffle; 6. shock-absorbing spring; 7. round plate; 8. through hole; 9. sealing ring 1; 10. hinged support; 11. mounting hole; 12. bearing; 13. internal thread. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1-4 , a rear suspension shock absorbing device for an electric vehicle, including a rear suspension shock absorbing device for an electric vehicle, the rear suspension shock absorbing device including a sleeve 1, a shock absorbing mechanism and an adjusting mechanism;

[0029] The sleeve 1 is provided with a shock absorbing mechanism, and the adjusting mechanism is arranged on the sleeve 1 and connected with the shock absorbing mechanism;

[0030] The adjusting mechanism comprises a threaded rod 4, a baffle 5 and a hinged support 10. The sleeve 1 is threadedly connected with the threaded rod 4, the baffle 5 is rotatably connected with the threaded rod 4, and one end of the threaded rod is welded with the hinged support 10.

[0031] The shock absorbing mechanism includes a round tube 2, a mounting plate 3, a shock absorbing spring 6 and a round plate 7. The round tube 2 is slidably connected to the sleeve 1, and one end of the round tube 2 is fixedly connected to the mounting plate 3. The same shock absorbing spring 6 is sleeved on the sleeve 1 and the round tube 2. Through the coordinated design of the sleeve 1, the shock absorbing mechanism and the adjustment mechanism, not only can the rear suspension shock absorbing device be triple-buffered and shock-absorbing with good buffering effect, but also the shock absorbing spring 6 can be prevented from bouncing other components when the rear suspension shock absorbing device is repaired, thereby improving safety. In addition, the structure is simple and easy to operate, which improves convenience and practicality.

[0032] In this embodiment, the two ends of the shock-absorbing spring 6 are respectively connected to the baffle 5 and the mounting plate 3, and a circular plate 7 is fixedly sleeved on one end of the circular tube 2. The circular plate 7 is slidably connected to the sleeve 1. The shock-absorbing spring 6 can achieve the first buffering and shock absorption of the rear suspension shock-absorbing device.

[0033] In this embodiment, a through hole 8 is provided on the circular plate 7 , and hydraulic oil is provided in the sleeve 1 . The hydraulic oil in the sleeve 1 flows on the left and right sides of the circular plate 7 through the through hole 8 .

[0034] In this embodiment, a groove 1 is formed on the circular plate 7, and a sealing ring 2 is fixedly installed in the groove 1. The sealing ring 2 is slidably connected to the sleeve 1 to improve the sealing performance and prevent the leakage of hydraulic oil.

[0035] In this embodiment, a sealing ring 9 is provided on the sliding sleeve of the circular tube 2, and the outer wall of the sealing ring 9 is fixedly connected to the sleeve 1, thereby further improving the sealing performance.

[0036] In this embodiment, a bearing 12 is fixedly sleeved on the threaded rod 4 , and an outer wall of the bearing 12 is fixedly connected to the baffle 5 , so as to facilitate the rotation of the threaded rod 4 .

[0037] In this embodiment, a mounting hole 11 is provided on the mounting plate 3 to facilitate the connection between the mounting plate 3 and an external device.

[0038] In this embodiment, a connecting portion is provided on the sleeve 1, and an internal thread 13 is provided in the connecting portion. The internal thread is adapted to the threaded rod 4, and the round tube 2 is slidably connected to the connecting portion to improve stability and prevent the threaded rod 4 from shaking.

[0039] Working principle: When in use, the hinged support 10 and the mounting hole 11 on the mounting plate 3 can be connected to external devices;

[0040] The first buffering and shock absorption of the rear suspension shock absorbing device can be achieved through the action of the shock absorbing spring 6. In this process, since the shock absorbing spring 6 will be compressed, the mounting plate 3 drives the circular plate 7 to slide a certain distance in the sleeve 1 through the circular tube 2. At the same time, the circular plate 7 squeezes the hydraulic oil in the sleeve 1. At the same time, the hydraulic oil acts through the through hole 8 on the circular plate 7 and flows from the left side of the circular plate 7 to the right side of the circular plate 7. In this process, since the diameter of the through hole 8 is small, the hydraulic pressure flows slowly, so that the hydraulic oil on the left side of the circular plate 7 gives the circular plate 7 a reaction force, thereby achieving the effect of the second shock absorption of the rear suspension shock absorbing device;

[0041] When the shock absorbing spring 6 rebounds, the hydraulic oil on the right side of the circular plate 7 flows to the left side of the circular plate 7 through the through hole 8, and in this process, the third shock absorbing effect of the rear suspension shock absorbing device is achieved;

[0042] When the rear suspension device needs to be repaired, the threaded rod 4 is rotated on the baffle 5 by rotating the hinged support 10, and is threadedly transmitted with the sleeve 1, so that the threaded rod 4 extends outward, and at the same time, the threaded rod 4 drives the baffle 5 to move synchronously, thereby increasing the distance between the baffle 5 and the mounting plate 3, and then gradually releasing the elastic potential energy of the shock-absorbing spring 6, thereby achieving the effect of preventing the shock-absorbing spring 6 from bouncing other components off when repairing the rear suspension shock-absorbing device.

[0043] The technical progress achieved by the utility model compared with the prior art is that through the cooperation of various components, not only can triple buffering and shock absorption be performed on the rear suspension shock absorbing device with good buffering effect, but also the shock absorbing spring 6 can be prevented from bouncing other components off when the rear suspension shock absorbing device is repaired, thereby improving safety. Moreover, the structure is simple and easy to operate, thereby improving convenience and practicality.

Claims

1. A rear suspension shock absorbing device for an electric vehicle, characterized in that: A rear suspension shock absorbing device for an electric vehicle, the rear suspension shock absorbing device comprising a sleeve (1), a shock absorbing mechanism and an adjusting mechanism; The sleeve (1) is provided with a shock absorbing mechanism, and the adjustment mechanism is arranged on the sleeve (1) and connected to the shock absorbing mechanism; The adjustment mechanism comprises a threaded rod (4), a baffle (5) and a hinged support (10); the sleeve (1) is threadedly connected to the threaded rod (4); the baffle (5) is rotatably connected to the threaded rod (4); and one end of the threaded rod is welded to the hinged support (10); The shock absorbing mechanism comprises a circular tube (2), a mounting plate (3), a shock absorbing spring (6) and a circular plate (7); the circular tube (2) is slidably connected to the sleeve (1); one end of the circular tube (2) is fixedly connected to the mounting plate (3); and the same shock absorbing spring (6) is sleeved on the sleeve (1) and the circular tube (2).

2. A rear suspension shock absorbing device for an electric vehicle according to claim 1, characterized in that: The two ends of the shock absorbing spring (6) are respectively connected to the baffle (5) and the mounting plate (3); one end of the circular tube (2) is fixedly sleeved with a circular plate (7); and the circular plate (7) is slidably connected to the sleeve (1).

3. A rear suspension shock absorbing device for an electric vehicle according to claim 2, characterized in that: The circular plate (7) is provided with a through hole (8), and hydraulic oil is contained in the sleeve (1).

4. A rear suspension shock absorbing device for an electric vehicle according to claim 3, characterized in that: The circular plate (7) is provided with a groove 1, in which a sealing ring 2 is fixedly installed, and the sealing ring 2 is slidably connected to the sleeve (1).

5. The rear suspension shock absorbing device for an electric vehicle according to claim 2, characterized in that: The circular tube (2) is slidably sleeved with a sealing ring (9), and the outer wall of the sealing ring (9) is fixedly connected to the sleeve (1).

6. The rear suspension shock absorbing device for an electric vehicle according to claim 1, characterized in that: A bearing (12) is fixedly sleeved on the threaded rod (4), and an outer wall of the bearing (12) is fixedly connected to the baffle (5).

7. The rear suspension shock absorbing device for an electric vehicle according to claim 1, characterized in that: The mounting plate (3) is provided with a mounting hole (11).

8. The rear suspension shock absorbing device for an electric vehicle according to claim 1, characterized in that: The sleeve (1) is provided with a connecting portion, the connecting portion is provided with an internal thread (13), the internal thread is matched with the threaded rod (4), and the round tube (2) is slidably connected to the connecting portion.

Images