Combined shock absorber oil seal

Abstract

The utility model discloses a combined shock absorber oil seal which comprises a shock absorber shell, a groove is formed in the upper end face of the shock absorber shell, a first shock absorber oil seal is placed in the groove, the surface of the shock absorber shell is in threaded connection with a threaded cover, and the inner wall of the threaded cover abuts against the upper end face of the first shock absorber oil seal. And a through hole is formed in the groove, a connecting rod is slidably connected into the through hole, and a piston plate is fixedly connected to the bottom end of the connecting rod. The threaded rod is driven to rotate through the rotary knob, the conical block can be driven to move up and down, the distance between the conical block and the inner wall of the shock absorber shell is adjusted, the smaller the distance is, hydraulic oil is difficult to enter an oil storage cavity, the larger the shock absorption damping is, the larger the distance is, the hydraulic oil is easy to enter the oil storage cavity, and the smaller the shock absorption damping is. Appropriate damping can be adjusted according to different working conditions, and the service life of the device can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of combined shock absorber oil seals, and in particular to a combined shock absorber oil seal. Background Technology

[0002] The announcement number CN215334125U discloses a shock absorber oil seal. This utility model has a reasonable structural design, which scrapes off the oil on the surface of the piston rod to avoid oil leakage and affect the performance of the shock absorber.

[0003] However, in the existing shock absorber oil seal described above, when the shock absorber is working, the piston rod begins to reciprocate. At this time, the oil inside the shock absorber will stick to the surface of the piston rod. When the piston rod moves upward, the oil on the surface of the piston rod is scraped off by the cleaning block and enters the cleaning groove. After entering the cleaning groove, the oil is discharged through the oil outlet in stages, and then falls onto the guide plate. It then falls into the inlet and outlet through the guide hole. At this time, the oil is discharged downward through the gap between the guide block and the outlet. This device makes it difficult to adjust the damping of the shock absorber. If the damping of the shock absorber is too small, the suspension travel is easily exhausted when encountering large bumps, causing bottoming out, and it also cannot provide the support required for handling. If the damping of the shock absorber is too large, it will feel like driving on four "iron rods". Long-term bumpy driving is not only uncomfortable, but it will also affect the life of some body parts.

[0004] To address the aforementioned problems, this utility model proposes a combined shock absorber oil seal. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a combined shock absorber oil seal to solve the technical problems in the prior art where "when the shock absorber is working, the piston rod begins to reciprocate. At this time, the oil inside the shock absorber will stick to the surface of the piston rod. When the piston rod moves upward, the oil on the surface of the piston rod is scraped off by the cleaning block and enters the cleaning groove. After entering the cleaning groove, the oil is discharged through the oil outlet in stages, and then falls onto the guide plate. It then falls into the inlet and outlet through the guide hole. At this time, the oil is discharged downward through the gap between the guide block and the outlet. This device makes it difficult to adjust the damping of the shock absorber. If the damping of the shock absorber is too small, the suspension travel is easily exhausted when encountering large bumps, causing bottoming out, and it also cannot meet the support required for handling. If the damping of the shock absorber is too large, it will feel like driving on four 'iron rods.' Long-term bumpy driving is not only uncomfortable, but it will also affect the life of some body parts."

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a shock absorber housing, with a groove on the upper surface of the housing, a first shock absorber oil seal placed within the groove, a threaded cap threadedly connected to the surface of the housing, the inner wall of the threaded cap abutting against the upper surface of the first shock absorber oil seal, a through hole in the groove, a connecting rod slidably connected within the through hole, a piston plate fixedly connected to the bottom end of the connecting rod, a spring fixedly connected to the upper surface of the piston plate, the top end of the spring fixedly connected to the inner wall of the housing, and a threaded rod threadedly connected to the lower surface of the housing.

[0007] As a preferred embodiment of this utility model, the diameter of the first shock absorber oil seal matches the diameter of the groove, and the diameter of the connecting rod matches the diameter of the through hole.

[0008] As a preferred embodiment of this utility model, the surface of the connecting rod is slidably connected to and in contact with the inner ring of the first shock absorber oil seal, and the surface of the piston plate is slidably connected to and in contact with the inner wall of the shock absorber housing.

[0009] As a preferred embodiment of this utility model, the upper end face of the piston plate is provided with multiple oil outlet holes, and the housing of the shock absorber is provided with an oil storage chamber.

[0010] As a preferred embodiment of this utility model, a knob is fixedly connected to the bottom end of the threaded rod, and a conical block is fixedly connected to the top end of the threaded rod.

[0011] As a preferred embodiment of this utility model, a second shock absorber oil seal is fixedly connected inside the shock absorber housing, and the surface of the threaded rod is slidably connected to and in contact with the inner ring of the second shock absorber oil seal.

[0012] This utility model provides a combined shock absorber oil seal, which has the following beneficial effects:

[0013] Rotating the screw rod via the knob causes the conical block to move up and down. By adjusting the distance between the conical block and the inner wall of the shock absorber housing, a smaller distance makes it harder for hydraulic oil to enter the oil reservoir, resulting in greater damping. Conversely, a larger distance allows hydraulic oil to easily enter the oil reservoir, resulting in less damping. The appropriate damping can be adjusted according to different working conditions, thereby improving the service life of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a combined shock absorber oil seal proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first shock absorber oil seal of the combined shock absorber oil seal proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a combined shock absorber oil seal spring proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the second shock absorber oil seal of the combined shock absorber proposed in this utility model.

[0018] In the diagram: 1 Shock absorber housing, 2 Threaded cap, 3 Connecting rod, 4 First shock absorber oil seal, 5 Spring, 6 Piston plate, 7 Oil reservoir, 8 Knob, 9 Conical block, 10 Threaded rod, 11 Oil outlet, 12 Second shock absorber oil seal, 13 Groove, 14 Through hole. Detailed Implementation

[0019] 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.

[0020] refer to Figure 1-4 This utility model provides a technical solution: it includes a shock absorber housing 1, with a groove 13 formed on the upper end face of the shock absorber housing 1. A first shock absorber oil seal 4 is placed in the groove 13. By setting the first shock absorber oil seal 4, hydraulic oil can be prevented from flowing out of the shock absorber housing 1, and external dust can be prevented from entering the shock absorber housing 1. The material of the first shock absorber oil seal 4 is nitrile rubber. A threaded cap 2 is threadedly connected to the surface of the shock absorber housing 1. By setting the threaded cap 2, after the threaded cap 2 is tightened, it can protect the first shock absorber. The oil seal 4 is used for limiting the position. The inner wall of the threaded cover 2 abuts against the upper end face of the first shock absorber oil seal 4. A through hole 14 is opened in the groove 13. A connecting rod 3 is slidably connected in the through hole 14. A piston plate 6 is fixedly connected to the bottom end of the connecting rod 3. By setting the piston plate 6, when the piston plate 6 moves, it will drive the hydraulic oil to move. The effect of buffering and shock absorption is achieved by squeezing the hydraulic oil. A spring 5 is fixedly connected to the upper end face of the piston plate 6. The top end of the spring 5 is fixedly connected to the inner wall of the shock absorber housing 1. A threaded rod 10 is threadedly connected to the lower end face of the shock absorber housing 1.

[0021] The diameter of the first shock absorber oil seal 4 matches the diameter of the groove 13, and the diameter of the connecting rod 3 matches the diameter of the through hole 14.

[0022] The surface of the connecting rod 3 is slidably connected to and in contact with the inner ring of the first shock absorber oil seal 4, and the surface of the piston plate 6 is slidably connected to and in contact with the inner wall of the shock absorber housing 1.

[0023] The piston plate 6 has multiple oil outlet holes 11 on its upper end face. By setting the oil outlet holes 11, hydraulic oil can pass through the oil outlet holes 11. Since the diameter of the oil outlet holes 11 is small, the hydraulic oil cannot pass through quickly, which can achieve a certain shock absorption effect. The shock absorber housing 1 has an oil storage chamber 7.

[0024] The bottom end of the threaded rod 10 is fixedly connected to a knob 8, and the top end of the threaded rod 10 is fixedly connected to a conical block 9.

[0025] The shock absorber housing 1 is fixedly connected to a second shock absorber oil seal 12. By setting the second shock absorber oil seal 12, hydraulic oil can be prevented from flowing out of the shock absorber housing 1. The surface of the threaded rod 10 is slidably connected to and in contact with the inner ring of the second shock absorber oil seal 12.

[0026] The working principle of this utility model is as follows: When the connecting rod 3 is impacted or vibrated, the connecting rod 3 drives the piston plate 6 to move downward. In a short time, the hydraulic oil is difficult to pass through the oil outlet 11, and the remaining hydraulic oil will enter the oil storage chamber 7. When the piston plate 6 continues to move, it will squeeze the hydraulic oil in the oil storage chamber 7 to absorb the impact. At the same time, the piston plate 6 drives the spring 5 to extend, and the screw rod 10 can be rotated clockwise by the knob 8 to drive the conical block 9 to move downward. This can reduce the distance between the conical block 9 and the inner wall of the shock absorber housing 1, making it difficult for the hydraulic oil to enter the oil storage chamber 7. This can increase the shock absorption damping of this device, which can be applied to occasions with large impact forces. After the impact ends, the squeezed hydraulic oil and the stretched spring 5 will push the connecting rod 3 upward through the piston plate 6, so that the connecting rod 3 returns to its initial position.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

Claims

1. A combined shock absorber oil seal, comprising a shock absorber housing (1), characterized in that, The upper end face of the shock absorber housing (1) is provided with a groove (13), and a first shock absorber oil seal (4) is placed in the groove (13). A threaded cap (2) is threadedly connected to the surface of the shock absorber housing (1). The inner wall of the threaded cap (2) abuts against the upper end face of the first shock absorber oil seal (4). A through hole (14) is provided in the groove (13). A connecting rod (3) is slidably connected in the through hole (14). A piston plate (6) is fixedly connected to the bottom end of the connecting rod (3). A spring (5) is fixedly connected to the upper end face of the piston plate (6). The top end of the spring (5) is fixedly connected to the inner wall of the shock absorber housing (1). A threaded rod (10) is threadedly connected to the lower end face of the shock absorber housing (1).

2. The combined shock absorber oil seal according to claim 1, characterized in that, The diameter of the first shock absorber oil seal (4) matches the diameter of the groove (13), and the diameter of the connecting rod (3) matches the diameter of the through hole (14).

3. The combined shock absorber oil seal according to claim 1, characterized in that, The surface of the connecting rod (3) is slidably connected to and in contact with the inner ring of the first shock absorber oil seal (4), and the surface of the piston plate (6) is slidably connected to and in contact with the inner wall of the shock absorber housing (1).

4. The combined shock absorber oil seal according to claim 1, characterized in that, The piston plate (6) has multiple oil outlet holes (11) on its upper end face, and the shock absorber housing (1) has an oil storage chamber (7).

5. The combined shock absorber oil seal according to claim 1, characterized in that, A knob (8) is fixedly connected to the bottom end of the threaded rod (10), and a conical block (9) is fixedly connected to the top end of the threaded rod (10).

6. The combined shock absorber oil seal according to claim 1, characterized in that, The second shock absorber oil seal (12) is fixedly connected inside the shock absorber housing (1), and the surface of the threaded rod (10) is slidably connected to and in contact with the inner ring of the second shock absorber oil seal (12).

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