Damping spring of electric vehicle

Abstract

The utility model discloses an electric vehicle damping spring, which relates to the technical field of electric vehicle accessories and comprises an inner spring damper, a first framework and a second framework are respectively connected to two sides of the top of the inner spring damper, and a sealing gasket is connected to one side of the bottom of each of the first framework and the second framework. Sealing rings are connected to one sides of the first framework and the second framework; and a positioning block is fixed above one side of the first framework. Through the arrangement of the first framework, the second framework, the sealing ring, the sealing gasket, the positioning block and the positioning groove, when the oil seal needs to be detached, the first framework and the second framework are rotated to be taken out from the inner spring damper, and therefore the sealing ring and the sealing gasket are detached; due to the fact that the first framework, the second framework, the sealing ring and the sealing gasket are all semicircular, the oil seal can be split in half and directly taken down, and the inner spring damper and the piston rod do not need to be disassembled from the electric vehicle firstly. The oil seal is convenient to disassemble, assemble and replace.

Description

Technical Field

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

[0002] Shock-absorbing springs, also known as damping springs, dampers, shock absorbers, and shock absorbers, are widely used in vehicles such as automobiles, electric vehicles, motorcycles, and electric motorcycles. They are also used in buildings. When electric vehicles are driving, the flatness of the ground is related to the comfort of the vehicle. Bumps during driving will impact the driver and cause discomfort, while shock-absorbing springs provide motion resistance and consume energy, thereby reducing vibration and impact force during bumps, and improving comfort, stability, and safety during riding.

[0003] Existing electric vehicle shock absorber springs are mainly divided into two types: inner springs and outer springs. Both inner springs and outer springs are absorbed and consumed by the damper, while the spring is used for resetting. The damper mainly absorbs and consumes energy through the internal damping oil. In order to avoid leakage of the damping oil, an oil seal needs to be set at the end of the damper;

[0004] However, after an electric vehicle has been used for too long, the oil seal of the damping spring is prone to damage and oil leakage due to wear, aging, and external impurities and bumps. The leakage of damping oil causes the performance of the damping spring to deteriorate, so the oil seal needs to be replaced. However, the two ends of the damping spring are respectively connected to the wheel assembly and the frame, and the oil seal is in a circular shape. Therefore, before removing the oil seal, the damping spring needs to be removed from the electric vehicle before the oil seal can be disassembled and assembled, which is time-consuming and labor-intensive. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an electric vehicle shock absorbing spring to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric vehicle shock-absorbing spring, comprising an inner spring damper, wherein the top two sides of the inner spring damper are respectively connected to a first frame and a second frame, and the bottom one side of the first frame and the second frame are both connected to a sealing gasket, one side of the first frame and the second frame are both connected to a sealing ring, a positioning block is fixed above one side of the first frame, and a positioning groove is opened above one side of the second frame.

[0007] By adopting the above technical solution, when the oil seal needs to be removed, the first frame and the second frame are rotated to remove the first frame and the second frame from the inner spring damper, thereby removing the sealing ring and the sealing gasket. Since the first frame, the second frame, the sealing ring and the sealing gasket are all semicircular, the oil seal can be split in half and removed directly without first removing the inner spring damper and the piston rod from the electric vehicle; during assembly, the new first frame and the second frame are sleeved on the outside of the piston rod and merged. At this time, the positioning block is embedded in the positioning groove to align the first frame with the second frame, and the two sealing rings and the two sealing gaskets are fitted at the same time. Then, the oil seal is screwed into the inner spring damper by reversing the first frame and the second frame. The two sealing rings are used to prevent the damping oil from leaking through the gap between the piston rod and the inner spring damper, the first frame and the second frame, and the second sealing is performed by the sealing gasket for the second time to prevent the damping oil from leaking from the gap between the first frame, the second frame and the inner spring damper.

[0008] Furthermore, the first frame and the second frame are both threadedly connected to the inner spring damper.

[0009] By adopting the above technical solution, when the oil seal needs to be disassembled, the staff rotates the first frame and the second frame to remove the first frame and the second frame from the inner spring damper, thereby removing the sealing ring and the sealing gasket.

[0010] Furthermore, the first frame, the second frame, the sealing ring and the sealing gasket are all in a semicircular shape.

[0011] By adopting the above technical solution, since the first frame, the second frame, the sealing ring and the sealing gasket are all semicircular, the staff can split the oil seal in half and remove it directly without the need for the staff to remove the inner spring damper and the piston rod from the electric vehicle first.

[0012] Furthermore, the cross section of the sealing ring is in an "L" shape, and the top of the sealing ring is inclined to one side, and the two sealing rings are in contact with each other.

[0013] By adopting the above technical solution, two sealing rings are used to prevent the damping oil from leaking through the gaps between the piston rod and the inner spring damper, the first frame and the second frame.

[0014] Furthermore, the sealing gasket abuts against the inner spring damper.

[0015] By adopting the above technical solution, a second sealing is performed through the sealing gasket to prevent the damping oil from leaking from the gap between the first frame, the second frame and the inner spring damper.

[0016] Furthermore, two of the positioning blocks and two of the positioning grooves are provided, and the positioning blocks are adapted to the positioning grooves.

[0017] By adopting the above technical solution, the first frame is aligned with the second frame by embedding the positioning block into the positioning groove, so as to facilitate installation and sealing.

[0018] Furthermore, a piston rod passes through the middle of the top of the inner spring damper.

[0019] By adopting the above technical solution, the vibration of the wheel causes relative displacement between the inner spring damper and the piston rod. At this time, the damping oil inside the inner spring damper absorbs and consumes energy. Then, the spring inside the inner spring damper drives the piston rod to extend and reset again to cope with the next impact.

[0020] Furthermore, one side of the sealing ring protrudes outwards.

[0021] By adopting the above technical solution, since one side of the two sealing rings protrudes outward, a gap is avoided after the two sealing rings are combined, thereby reducing the occurrence of oil leakage.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] The utility model is provided with the first frame, the second frame, the sealing ring, the sealing gasket, the positioning block and the positioning groove. When it is necessary to disassemble the oil seal, the first frame and the second frame are rotated to take the first frame and the second frame out of the inner spring damper, so that the sealing ring and the sealing gasket are removed. Since the first frame, the second frame, the sealing ring and the sealing gasket are all in a semicircular ring shape, the oil seal can be directly taken out by splitting it in half, without first removing the inner spring damper and the piston rod from the electric vehicle. During assembly, the new first frame and the second frame are sleeved on the outside of the piston rod and merged. At this time, the positioning block is embedded in the positioning groove to align the first frame with the second frame, and the two sealing rings and the two sealing gaskets are fitted at the same time. After that, the oil seal is screwed into the inner spring damper by reversing the first frame and the second frame. The two sealing rings are used to prevent the damping oil from leaking through the gap between the piston rod and the inner spring damper, the first frame and the second frame, and the sealing gasket is used for a second sealing to prevent the damping oil from leaking from the gap between the first frame, the second frame and the inner spring damper. The oil seal is convenient for disassembling and replacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the sealing ring structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the sealing ring of the utility model;

[0027] Figure 4 This is a schematic diagram of the side structure of the first skeleton of the utility model;

[0028] Figure 5 It is a schematic diagram of the side structure of the second skeleton of the utility model.

[0029] In the figure: 1. inner spring damper; 2. piston rod; 3. first frame; 4. second frame; 5. sealing ring; 6. sealing gasket; 7. positioning block; 8. positioning groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0031] The following describes the overall structure of the present invention with reference to the embodiments.

[0032] Embodiment 1:

[0033] An electric vehicle shock absorbing spring, such as Figure 1-Figure 5 As shown, it includes an inner spring damper 1, and the first frame 3 and the second frame 4 are respectively connected to the two sides of the top of the inner spring damper 1, and the first frame 3 and the second frame 4 are both threadedly connected to the inner spring damper 1. When the oil seal needs to be removed, the staff rotates the first frame 3 and the second frame 4 to take the first frame 3 and the second frame 4 out of the inner spring damper 1; the first frame 3 and the second frame 4 are connected to one side of the bottom with a sealing gasket 6, and the sealing gasket 6 abuts against the inner spring damper 1, and the second sealing is performed by the sealing gasket 6 to prevent the damping oil from leaking from the gap between the first frame 3, the second frame 4 and the inner spring damper 1; the first frame 3 and the second frame 4 are connected to one side with a sealing ring 5, and the cross section of the sealing ring 5 is "L" shaped. The top of the sealing ring 5 is inclined to one side, and the two sealing rings 5 ​​are abutted against each other. The two sealing rings 5 ​​prevent the damping oil from leaking through the gap between the piston rod 2 and the inner spring damper 1, the first skeleton 3 and the second skeleton 4; the first skeleton 3, the second skeleton 4, the sealing ring 5 and the sealing gasket 6 are all in the shape of a semicircular ring. Since the first skeleton 3, the second skeleton 4, the sealing ring 5 and the sealing gasket 6 are all in the shape of a semicircular ring, the staff can split the oil seal in half and remove it directly; a positioning block 7 is fixed on the upper side of the first skeleton 3, and a positioning groove 8 is opened on the upper side of the second skeleton 4. There are two positioning blocks 7 and two positioning grooves 8, and the positioning block 7 is adapted to the positioning groove 8. The positioning block 7 is embedded in the positioning groove 8 to align the first skeleton 3 with the second skeleton 4.

[0034] See also Figure 1In the above embodiment, a piston rod 2 runs through the middle of the top of the inner spring damper 1. The vibration of the wheel causes relative displacement between the inner spring damper 1 and the piston rod 2. At this time, the damping oil inside the inner spring damper 1 absorbs and consumes energy. Then, the spring inside the inner spring damper 1 drives the piston rod 2 to extend and reset again to cope with the next impact.

[0035] Embodiment 2:

[0036] On the basis of the above-mentioned embodiment 1, in order to improve the sealing performance, the following settings are now adopted.

[0037] See also Figure 4 and Figure 5 In the above embodiment, one side of the sealing ring 5 protrudes outward. Since one side of the two sealing rings 5 ​​protrude outward, a gap is avoided after the two sealing rings 5 ​​are combined.

[0038] The implementation principle of the utility model is as follows: first, when the oil seal needs to be removed, the staff rotates the first frame 3 and the second frame 4 to remove the first frame 3 and the second frame 4 from the inner spring damper 1, thereby removing the sealing ring 5 and the sealing gasket 6. Since the first frame 3, the second frame 4, the sealing ring 5 and the sealing gasket 6 are all semicircular, the staff can split the oil seal in half and remove it directly, without the staff first removing the inner spring damper 1 and the piston rod 2 from the electric vehicle;

[0039] During assembly, the staff puts the new first skeleton 3 and the second skeleton 4 on the outside of the piston rod 2 and merges them. At this time, the positioning block 7 is embedded in the positioning groove 8 to align the first skeleton 3 with the second skeleton 4. At the same time, the two sealing rings 5 ​​are fitted and the two sealing gaskets 6 are fitted. Since one side of the two sealing rings 5 ​​protrudes outward, a gap is avoided after the two sealing rings 5 ​​are merged. Then the staff reverses the first skeleton 3 and the second skeleton 4 and screws the oil seal into the inner spring damper 1. The two sealing rings 5 ​​prevent the damping oil from leaking through the gap between the piston rod 2 and the inner spring damper 1, the first skeleton 3 and the second skeleton 4, and the sealing gasket 6 is used for a second sealing to prevent the damping oil from leaking from the gap between the first skeleton 3, the second skeleton 4 and the inner spring damper 1.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An electric vehicle shock absorbing spring, comprising an inner spring damper (1), characterized in that: The inner spring damper (1) is connected to a first frame (3) and a second frame (4) on both sides of the top, and a sealing gasket (6) is connected to one side of the bottom of the first frame (3) and the second frame (4), and a sealing ring (5) is connected to one side of the first frame (3) and the second frame (4), a positioning block (7) is fixed above one side of the first frame (3), and a positioning groove (8) is provided above one side of the second frame (4).

2. The electric vehicle shock absorbing spring according to claim 1, characterized in that: The first frame (3) and the second frame (4) are both threadedly connected to the inner spring damper (1).

3. The electric vehicle shock absorbing spring according to claim 2, characterized in that: The first frame (3), the second frame (4), the sealing ring (5) and the sealing pad (6) are all in the shape of a semicircle.

4. The electric vehicle shock absorbing spring according to claim 3, characterized in that: The cross section of the sealing ring (5) is in an "L" shape, and the top of the sealing ring (5) is inclined to one side, and the two sealing rings (5) are in contact with each other.

5. The electric vehicle shock absorbing spring according to claim 3, characterized in that: The sealing pad (6) abuts against the inner spring damper (1).

6. The electric vehicle shock absorbing spring according to claim 1, characterized in that: Two of the positioning blocks (7) and positioning grooves (8) are provided, and the positioning blocks (7) are matched with the positioning grooves (8).

7. The electric vehicle shock absorbing spring according to claim 1, characterized in that: A piston rod (2) passes through the middle of the top of the inner spring damper (1).

8. The electric vehicle shock absorbing spring according to claim 1, characterized in that: One side of the sealing ring (5) protrudes outwards.

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