Shock absorber assembly for electric vehicle

Abstract

The utility model belongs to the field of shock absorbers, and provides a shock absorber assembly for an electric vehicle, which comprises a cylinder barrel, an inner barrel arranged on the inner side of the cylinder barrel, a piston slidably arranged in the inner barrel, a shock strut arranged at the top of the piston, a connecting plate connected to the top end of the shock strut through the cylinder barrel, and assembling rings connected to the top end of the connecting plate and the bottom end of the cylinder barrel. An oil outlet hole is formed in the bottom end of the inner barrel, and an elastic plugging assembly and a lifting mechanism located on the inner side of the cylinder barrel are arranged below the oil outlet hole; the elastic plugging assembly for plugging the inner barrel is arranged in the cylinder barrel through the lifting mechanism, the height of the containing barrel can be adjusted through the lifting mechanism, and the plugging strength of the plugging head to the oil passing hole is different at different heights, so that the opening degrees of the oil outlet hole are different under the forced pressure of the same oil liquid; and the damping state of the shock absorber is adjusted by controlling the oil outlet speed, and the overall operability and practicability are high.

Description

Technical Field

[0001] This utility model belongs to the field of shock absorbers, specifically a shock absorber assembly for electric vehicles. Background Technology

[0002] Electric vehicles include electric vehicles and electric bicycles. An electric bicycle is a two-wheeled bicycle that uses an on-board battery as an auxiliary power source, has the ability to be pedaled, and can achieve electric assistance or electric drive functions. Electric bicycles are an environmentally friendly and convenient means of transportation, and the shock absorber assembly is an important component that plays an important role in improving the stability and comfort of riding.

[0003] A search revealed a Chinese patent with publication number CN212797204U, which discloses an adjustable shock absorption mechanism for electric bicycles. This mechanism includes a shock-absorbing spring with a telescopic sleeve and a telescopic positioning rod on its inner side. The telescopic sleeve is located below the telescopic positioning rod. A telescopic inner groove is formed on the inner surface of the telescopic sleeve, and multiple buffer rings are fixedly installed within this groove. This allows for adjustment of the overall shock absorption height and angle of the mechanism, facilitating use on different bicycle models. It also slows down the rebound speed, preventing excessive rebound that could cause the shock absorption structure to bounce, and enhances the shock absorption effect.

[0004] However, the shock absorbers for electric bicycles mentioned above cannot adjust their damping state according to their own needs and the degree of bumpiness of the road they travel on, resulting in poor overall operability and practicality.

[0005] To address the problems raised in the background art, those skilled in the art have proposed a shock absorber assembly for electric vehicles. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a shock absorber assembly for electric vehicles, thereby solving the problem that existing shock absorbers for electric bicycles cannot adjust their damping state according to their own needs, resulting in poor overall operability and practicality.

[0007] An electric vehicle shock absorber assembly includes a cylinder, an inner cylinder inside the cylinder, an oil reservoir between the cylinder and the inner cylinder, a piston slidably disposed inside the inner cylinder, a shock absorber strut disposed on the top of the piston, a connecting plate connected to the top of the shock absorber strut through the cylinder, an assembly ring connected to the top of the connecting plate and the bottom of the cylinder, an oil outlet hole communicating with the oil reservoir at the bottom of the inner cylinder, an elastic sealing component and a lifting mechanism disposed below the oil outlet hole inside the cylinder, the elastic sealing component being used to elastically seal the oil outlet hole, and the lifting mechanism being used to adjust the elastic force of the elastic sealing component sealing the oil outlet hole.

[0008] Preferably, a fixing ring is connected to the outer side of the cylinder, and a damping spring sleeved on the outer side of the cylinder and the shock absorber support is connected between the fixing ring and the connecting plate.

[0009] Preferably, a sealing block is provided at the top of the cylinder barrel, located on the outside of the shock-absorbing support.

[0010] Preferably, the elastic sealing assembly includes a receiving cylinder, a compression spring, a sliding plate, a support rod, and a sealing head. The receiving cylinder is movably disposed inside the cylinder via a lifting mechanism. A compression spring is disposed inside the receiving cylinder. The top of the compression spring is connected to a sliding plate that slides with the receiving cylinder. A support rod is disposed at the top of the sliding plate. The top of the support rod passes through the receiving cylinder and is connected to the sealing head.

[0011] Preferably, the sealing head is configured as a truncated cone structure, which seals the oil outlet under the action of a compression spring.

[0012] Preferably, the lifting mechanism includes a horizontal plate, a threaded rod, a movable seat, a connecting rod, and a throttle. The horizontal plate is connected to the bottom of the receiving cylinder, and the connecting rod is rotatably connected below the horizontal plate. The threaded rod is rotatably disposed at the bottom of the inner side of the cylinder. One end of the threaded rod passes through the cylinder and is connected to the throttle. The movable seat is threadedly connected to the middle of the threaded rod, and the movable seat and the end of the connecting rod away from the horizontal plate are rotatably connected.

[0013] Preferably, two sets of guide pillars are symmetrically arranged between the bottom of the inner cylinder and the cylinder barrel, and the cross plate is slidably connected between the two sets of guide pillars.

[0014] Compared with the prior art, this utility model has the following advantages: an elastic sealing component for sealing the inner cylinder is set in the cylinder through a lifting mechanism. The piston is driven to slide in the inner cylinder through the shock-absorbing support, so that the oil in the inner cylinder squeezes the sealing head. The sealing head drives the sliding plate to squeeze the pressure spring through the support rod, thereby opening the oil outlet. The height of the receiving cylinder can be adjusted by the lifting mechanism. At different heights, the sealing force of the sealing head on the oil outlet is different, so that the degree of opening of the oil outlet is different under the same oil pressure. In addition, the damping state of the shock absorber can be adjusted by controlling the oil outlet speed. The overall operability and practicality are high. Attached Figure Description

[0015] Figure 1 This is the main view of the present invention.

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a side sectional view of the present invention;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram of part A.

[0019] In the picture:

[0020] 1. Cylinder; 2. Inner cylinder; 3. Oil reservoir; 4. Piston; 5. Shock absorber strut; 6. Connecting plate; 7. Assembly ring; 8. Fixing ring; 9. Damping spring; 10. Sealing block; 11. Receiving cylinder; 12. Compression spring; 13. Slide plate; 14. Support rod; 15. Sealing head; 16. Oil outlet; 17. Horizontal plate; 18. Threaded rod; 19. Moving seat; 20. Connecting rod; 21. Throttle; 22. Guide post. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] This utility model provides a shock absorber assembly for electric vehicles, including a cylinder 1, an inner cylinder 2 disposed inside the cylinder 1, an oil storage chamber 3 formed between the cylinder 1 and the inner cylinder 2, a piston 4 slidably disposed inside the inner cylinder 2, a shock absorber support 5 disposed on the top of the piston 4, a connecting plate 6 connected to the top of the shock absorber support 5 through the cylinder 1, an assembly ring 7 connected to the top of the connecting plate 6 and the bottom of the cylinder 1, an oil outlet hole 16 communicating with the oil storage chamber 3 is opened at the bottom of the inner cylinder 2, an elastic sealing component and a lifting mechanism are disposed below the oil outlet hole 16 located inside the cylinder 1, the elastic sealing component is used to elastically seal the oil outlet hole 16, and the lifting mechanism is used to adjust the elastic force of the elastic sealing component on the oil outlet hole 16.

[0024] refer to Figure 1 A fixing ring 8 is connected to the outer side of the cylinder 1, and a damping spring 9 is sleeved on the outer side of the cylinder 1 and the shock absorber support 5 between the fixing ring 8 and the connecting plate 6.

[0025] When the shock absorber strut 5 moves the connecting plate 6 relative to the cylinder 1, the connecting plate 6 will squeeze the damping spring 9. The damping spring 9 undergoes elastic deformation during the squeezing process. When the external force is lost, the damping spring 9 will release the elastic restoring force and drive the shock absorber strut 5 and piston 4 to reset through the connecting plate 6.

[0026] refer to Figure 2 The top of the cylinder 1 is provided with a sealing block 10 located outside the shock absorber support 5.

[0027] The sealing block 10 ensures the sealing of the shock absorber strut 5 when it moves relative to the cylinder 1, thereby ensuring the performance of the shock absorber.

[0028] refer to Figure 3 and Figure 4The elastic sealing assembly includes a receiving cylinder 11, a compression spring 12, a sliding plate 13, a support rod 14, and a sealing head 15. The receiving cylinder 11 is movably disposed inside the cylinder 1 via a lifting mechanism. A compression spring 12 is disposed inside the receiving cylinder 11. The top of the compression spring 12 is connected to a sliding plate 13 that slides with the receiving cylinder 11. A support rod 14 is disposed at the top of the sliding plate 13. The top of the support rod 14 passes through the receiving cylinder 11 and is connected to the sealing head 15.

[0029] refer to Figure 4 The sealing head 15 is configured as a truncated cone structure, which seals the oil outlet 16 under the action of the compression spring 12.

[0030] The plugging head 15 blocks the oil outlet 16 under the action of the compression spring 12. When it is subjected to the pressure of the oil, it will drive the support rod 14 and the slide plate 13 to move downward synchronously under the pressure, so that the slide plate 13 squeezes the compression spring 12, thereby driving the plugging head 15 to move downward and open the oil outlet.

[0031] refer to Figure 1 and Figure 4 The lifting mechanism includes a horizontal plate 17, a threaded rod 18, a movable seat 19, a connecting rod 20, and a throttle 21. The horizontal plate 17 is connected to the bottom of the receiving cylinder 11. The connecting rod 20 is rotatably connected below the horizontal plate 17. The threaded rod 18 is rotatably set at the bottom of the inner side of the cylinder 1. One end of the threaded rod 18 passes through the cylinder 1 and is connected to the throttle 21. The movable seat 19 is threadedly connected to the middle of the threaded rod 18. The movable seat 19 and the end of the connecting rod 20 away from the horizontal plate 17 are rotatably connected.

[0032] refer to Figure 2 Two sets of guide pillars 22 are symmetrically arranged between the bottom of the inner cylinder 2 and the cylinder 1, and the horizontal plate 17 is slidably connected between the two sets of guide pillars 22.

[0033] In this process, by manually turning the handle 21, the handle 21 drives the threaded rod 18 to rotate. During the rotation of the threaded rod 18, the moving seat 19 moves. During the movement of the moving seat 19, the connecting rod 20 drives the horizontal plate 17 to move under the limit of the guide post 22. By adjusting the position of the horizontal plate 17, the height of the receiving cylinder 11 can be adjusted.

[0034] Working principle: During use, when the shock absorber is subjected to vibration, the shock absorber support 5 will drive the piston 4 to move downward. During the movement, the piston 4 will squeeze the oil in the inner cylinder 2. Under the pressure, the oil will squeeze the sealing head 15 through the oil outlet 16. The sealing head 15 will drive the sliding plate 13 to squeeze the compression spring 12 through the support rod 14, thereby opening the oil outlet 16. By manually turning the handle 21, the handle 21 will drive the threaded rod 18 to rotate. During the rotation of the threaded rod 18, the moving seat 19 will move. During the movement of the moving seat 19, the horizontal plate 17 will move under the limit of the guide post 22 through the connecting rod 20. By adjusting the position of the horizontal plate 17, the height of the receiving cylinder 11 can be adjusted. At different heights, the sealing force of the sealing head 15 on the oil outlet is different, so that the degree of opening of the oil outlet 16 is different under the same oil pressure. By reducing the degree of opening of the oil outlet 16, the oil flow speed is reduced, thereby adjusting the overall damping.

[0035] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A shock absorber assembly for electric vehicles, characterized in that, The device includes a cylinder (1), an inner cylinder (2) is provided inside the cylinder (1), an oil storage chamber (3) is formed between the cylinder (1) and the inner cylinder (2), a piston (4) is slidably provided inside the inner cylinder (2), a shock-absorbing support (5) is provided on the top of the piston (4), a connecting plate (6) is connected to the top of the shock-absorbing support (5) through the cylinder (1), an assembly ring (7) is connected to the top of the connecting plate (6) and the bottom of the cylinder (1), an oil outlet (16) communicating with the oil storage chamber (3) is provided at the bottom of the inner cylinder (2), an elastic sealing component and a lifting mechanism are provided below the oil outlet (16) located inside the cylinder (1), the elastic sealing component is used to elastically seal the oil outlet (16), and the lifting mechanism is used to adjust the elastic force of the elastic sealing component to seal the oil outlet (16).

2. The shock absorber assembly for electric vehicles as described in claim 1, characterized in that: A fixing ring (8) is connected to the outside of the cylinder (1), and a damping spring (9) is sleeved on the outside of the cylinder (1) and the shock absorber (5) between the fixing ring (8) and the connecting plate (6).

3. The shock absorber assembly for electric vehicles as described in claim 1, characterized in that: The top of the cylinder (1) is provided with a sealing block (10) located outside the shock absorber support (5).

4. The shock absorber assembly for electric vehicles as described in claim 1, characterized in that: The elastic sealing assembly includes a receiving cylinder (11), a compression spring (12), a sliding plate (13), a support rod (14), and a sealing head (15). The receiving cylinder (11) is movably disposed inside the cylinder (1) via a lifting mechanism. A compression spring (12) is disposed inside the receiving cylinder (11). The top of the compression spring (12) is connected to a sliding plate (13) that slides with the receiving cylinder (11). A support rod (14) is disposed at the top of the sliding plate (13). The top of the support rod (14) passes through the receiving cylinder (11) and is connected to the sealing head (15).

5. The shock absorber assembly for electric vehicles as described in claim 4, characterized in that: The plugging head (15) is configured as a truncated cone structure, which blocks the oil outlet (16) under the action of the compression spring (12).

6. The shock absorber assembly for electric vehicles as described in claim 4, characterized in that: The lifting mechanism includes a horizontal plate (17), a threaded rod (18), a movable seat (19), a connecting rod (20), and a throttle (21). The horizontal plate (17) is connected to the bottom of the receiving cylinder (11). The connecting rod (20) is rotatably connected below the horizontal plate (17). The threaded rod (18) is rotatably set at the bottom of the inner side of the cylinder (1). One end of the threaded rod (18) passes through the cylinder (1) and is connected to the throttle (21). The movable seat (19) is threadedly connected to the middle of the threaded rod (18). The movable seat (19) and the connecting rod (20) are rotatably connected at the end away from the horizontal plate (17).

7. The shock absorber assembly for electric vehicles as described in claim 6, characterized in that: Two sets of guide pillars (22) are symmetrically arranged between the bottom of the inner cylinder (2) and the cylinder (1), and the horizontal plate (17) is slidably connected between the two sets of guide pillars (22).

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