Guider assembly, shock absorber and vehicle

Abstract

The utility model relates to a guider assembly, a shock absorber and a vehicle. The guider assembly comprises a guider main body and a guiding device, the oil drainage ring is fixed relative to the guider main body, and an oil drainage hole is formed in the side wall of the oil drainage ring; and the oil blocking piece is arranged on the periphery of the oil drainage ring in a sleeving mode to block the oil drainage hole, and a medium makes contact with the oil blocking piece through the oil drainage hole, so that the oil blocking piece can open the oil drainage hole under the action of the pressure difference. According to the technical scheme, the service life of the guider assembly is prolonged.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a guide assembly, a shock absorber and a vehicle. Background Art

[0002] Shock absorbers are essential components of automobiles. They reduce shock, improve the comfort of the car, and play a decisive role in the comfort and safety of the vehicle. The guide is one of the important components of the shock absorber. The guide plays a good guiding role in the movement of the piston rod in the shock absorber. The working cylinder is connected to the oil storage cylinder through the oil hole on the guide. However, when the traditional guide is working, the oil in the working cylinder will flow to the outer tube. When the car is stationary, the shock absorber is prone to lost travel, which will lead to poor overall performance of the shock absorber and shorten its service life.

[0003] Patent application number "202021318245.6," entitled "A One-Way Valve Guide Structure for a Shock Absorber," discloses a component for a shock absorber, particularly a one-way valve guide structure for a shock absorber. The structure comprises a guide body, which is provided with a piston mounting hole, an oil groove communicating with the piston mounting hole, and a guide fixing ring. The sidewall of the guide body is provided with an oil hole communicating with the oil reservoir and the working cylinder. The guide body is provided with a one-way valve capable of sealing the oil hole. The one-way valve comprises a rubber ring and an oil seal. The rubber ring is sleeved over the oil hole on the outer wall of the guide body. One end of the oil seal is connected to the outer wall of the guide body, and the other end abuts against the inner wall of the rubber ring for sealing. The purpose of this utility model is to provide a one-way valve guide structure that adds a one-way valve to create a negative pressure between the working cylinder and the guide, ensuring that the interior of the working cylinder is always filled with oil and preventing it from flowing into the outer tube. When the vehicle is stationary, the shock absorber does not idle, thereby improving the performance and life of the shock absorber.

[0004] However, the guide mechanism described above is susceptible to deformation and displacement under prolonged oil and gas impact, which can cause the one-way valve to fail and pose a safety risk. When oil flows out of the guide mechanism, the oil pressure impacts the rubber ring through the oil hole. This pressure is concentrated near the oil hole, which can cause deformation and failure of the rubber ring over time, shortening its service life. Utility Model Content

[0005] The embodiments of the present application provide a guide assembly, a shock absorber, and a vehicle, which increase the service life of the guide assembly and at least partially solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a guide assembly is provided, including: a guide body; an oil drain ring, which is relatively fixed to the guide body, and an oil drain hole is provided on the side wall of the oil drain ring; an oil baffle, which is sleeved on the outer periphery of the oil drain ring to seal the oil drain hole, and the medium contacts the oil baffle through the oil drain hole, so that the oil baffle can open the oil drain hole under the action of pressure difference.

[0007] Optionally, the contact area between the medium and the oil baffle near the oil drain hole is S1, the maximum cross-sectional area of the oil drain hole is S2, and S1>S2.

[0008] Optionally, the oil drain ring includes multiple oil drain holes, the guide assembly includes multiple oil baffles, and the oil drain holes and the oil baffles are arranged in a one-to-one correspondence; or, the oil baffles extend into an annular structure along the circumference of the oil drain ring and block multiple oil drain holes.

[0009] Optionally, the oil baffle is a baffle ring, and the oil baffle is sleeved on the outer circumference of the oil drain ring.

[0010] Optionally, there is a gap between the side wall of the oil baffle member close to the oil leakage ring and the oil leakage hole, and the gap forms a pressure relief groove.

[0011] Optionally, the guide assembly also includes an oil scraper ring and a bushing, the oil scraper ring and the bushing are arranged in the guide body along the axial direction of the guide body, the oil scraper ring is located between the bushing and the oil drain ring, and the oil scraper ring and the bushing are arranged at one end of the guide body away from the oil drain ring.

[0012] Optionally, the oil leakage ring includes a plurality of oil leakage holes, and the plurality of oil leakage holes are arranged at intervals along the circumference of the oil leakage ring.

[0013] Optionally, the oil deflector comprises a flexible material.

[0014] Optionally, the guide body and the oil drain ring are an integrally formed structure.

[0015] According to the second aspect of the present application, a shock absorber is provided, comprising the guide assembly as described above; a seal, which is arranged on the end of the guide body of the guide assembly close to the oil drain ring; a cylinder body, which is sleeve-connected to the end of the guide body away from the oil drain ring; a piston rod, which is penetrated and connected to the oil drain ring and the seal, one end of the piston rod is located in the cylinder body, and the piston rod can move axially along the guide body relative to the guide assembly.

[0016] Optionally, the oil scraper ring and the bushing of the guide assembly are both sleeved on the outer circumference of the piston rod, and the inner diameters of the oil scraper ring and the bushing are both larger than the outer diameter of the piston rod.

[0017] Optionally, the seal, the guide body, the oil drain ring of the guide assembly, and the oil baffle of the guide assembly cooperate with each other to form an outer chamber, and the seal, the piston rod, and the oil drain ring cooperate with each other to form an inner chamber. When the pressure on the oil baffle close to the inner chamber is greater than the pressure on the oil baffle close to the outer chamber, the medium can flow from the inner chamber to the outer chamber.

[0018] Optionally, when the piston rod moves upward, the pressure in the inner chamber increases and the pressure in the outer chamber decreases. The medium passes through the inner chamber and flows through the oil drain hole of the guide assembly and the pressure reducing groove of the guide assembly in sequence. When the medium pressure reaches a certain threshold, the medium flows to the outer chamber.

[0019] Optionally, when the piston rod moves downward, the pressure in the inner chamber decreases, the pressure in the outer chamber increases, and the medium in the outer chamber is blocked by the oil blocking member and cannot flow from the outer chamber into the inner chamber.

[0020] According to a third aspect of the present application, a vehicle is also provided, comprising the above shock absorber.

[0021] In the guide assembly of the embodiment of the present application, there is provided a guide assembly, comprising: a guide body; an oil drain ring fixedly connected to the guide body, with an oil drain hole provided on the side wall of the oil drain ring; and an oil baffle mounted on the outer circumference of the oil drain ring to block the oil drain hole. Through the above technical solution, when the medium flows out of the oil drain hole of the guide body through the oil drain ring and contacts the oil baffle, since the contact area between the medium and the oil baffle is large, it can ensure that the force applied to the medium through the oil baffle is relatively uniform, and the structure of the oil baffle will not be easily deformed, thereby protecting the structure of the oil baffle and extending the service life of the oil baffle.

[0022] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0024] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0025] Figure 1 is a schematic diagram of the overall structure of a guide assembly provided in an exemplary embodiment of the present disclosure;

[0026] Figure 2is an exploded structural schematic diagram of a guide assembly provided in an exemplary embodiment of the present disclosure;

[0027] Figure 3 is a cross-sectional schematic diagram of a guide assembly provided in an exemplary embodiment of the present disclosure;

[0028] Figure 4 is a schematic diagram of an exploded structure of a shock absorber provided in an exemplary embodiment of the present disclosure;

[0029] Figure 5 FIG. 1 is a schematic cross-sectional view of a vibration damper provided in an exemplary embodiment of the present disclosure.

[0030] Description of reference numerals:

[0031] 1. Guide assembly;

[0032] 10. Guide body;

[0033] 20. Oil drain ring; 21. Oil drain hole; 22. Pressure relief groove; 30. Oil baffle; 40. Oil scraper ring; 50. Bushing; 60. Shock absorber; 70. Seal; 80. Cylinder body; 90. Piston rod; 100. Outer chamber; 110. Inner chamber. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0035] See also Figure 1 , Figure 1 This is a schematic structural diagram of the guide assembly 1 provided in an embodiment of the present application.

[0036] like Figures 1 to 3 As shown, according to the first aspect of the present application, a guide assembly 1 is provided, including: a guide body 10; an oil drain ring 20, which is relatively fixed to the guide body 10, and an oil drain hole 21 is provided on the side wall of the oil drain ring 20; an oil baffle 30, which is sleeved on the outer periphery of the oil drain ring 20 to seal the oil drain hole 21, and the medium contacts the oil baffle 30 through the oil drain hole 21, so that the oil baffle 30 can open the oil drain hole 21 under the action of the pressure difference.

[0037] In the present application, when the pressure on the side of the oil baffle 30 close to the oil drain hole 21 is greater than the pressure on the side of the oil baffle 30 away from the oil drain hole 21, at least part of the oil baffle 30 will move toward the side away from the oil drain hole 21, thereby achieving the function of opening the oil drain hole 21.

[0038] In the guide assembly 1 of the embodiment of the present application, there is provided a guide assembly 1, comprising: a guide body 10; an oil drain ring 20, fixedly connected to the guide body 10, with an oil drain hole 21 provided on the side wall of the oil drain ring 20; and an oil baffle 30, sleeved on the outer circumference of the oil drain ring 20 to block the oil drain hole 21. Through the above technical solution, when the medium flows out of the oil drain hole 21 of the guide body 10 through the oil drain ring 20 and contacts the oil baffle 30, since the contact area between the medium and the oil baffle 30 is large, it can be ensured that the force applied to the medium through the oil baffle 30 is relatively uniform, and the structure of the oil baffle 30 will not be easily deformed, thereby protecting the structure of the oil baffle 30 and extending the service life of the oil baffle 30.

[0039] In one embodiment, the contact area between the medium and the oil baffle 30 near the oil drain hole 21 is S1, and the maximum cross-sectional area of the oil drain hole 21 is S2, where S1>S2. This structure reduces pressure when the medium contacts the oil baffle 30, thereby preventing excessive impact force from the medium on the oil baffle 30 and causing structural damage to the oil baffle 30, thereby extending the service life of the oil baffle 30.

[0040] In one embodiment, the oil drain ring 20 includes multiple oil drain holes 21, and the guide assembly 1 includes multiple oil baffles 30, with the oil drain holes 21 corresponding to the oil baffles 30. Alternatively, the oil baffles 30 extend along the circumference of the oil drain ring 20 to form an annular structure and block the multiple oil drain holes 21. This configuration allows the structure of the oil baffles 30 to be customized according to different usage environments to meet the needs of the device, thereby improving the device's applicability and scope of application.

[0041] In one embodiment, the oil baffle 30 is a retaining ring, which is sleeved on the outer circumference of the oil drain ring 20. This arrangement not only facilitates the installation and removal of the oil baffle 30 and the oil drain ring 20, but also facilitates the processing of the oil baffle 30, thereby reducing the production cost of the oil baffle 30.

[0042] In one embodiment, the outer periphery of the oil drain ring 20 has an annular groove, the bottom wall of the annular groove is provided with an oil drain hole 21 , and the oil blocking member 30 is connected to the top wall of the annular groove.

[0043] In one embodiment, a gap is formed between the sidewall of the oil baffle 30 near the oil drain ring 20 and the oil drain hole 21, forming a pressure relief groove 22. The specific structural design of the pressure relief groove 22 accelerates the velocity of the medium passing through it. According to Bernoulli's principle, the pressure of the medium is correspondingly reduced, thereby achieving the purpose of pressure reduction. This effectively prevents impact on the sidewall of the oil baffle 30 and protects the structural safety of the oil baffle 30.

[0044] In one embodiment, the guide assembly 1 further includes an oil scraper ring 40 and a bushing 50. The oil scraper ring 40 and the bushing 50 are disposed within the guide body 10 along the axial direction of the guide body 10. The oil scraper ring 40 is located between the bushing 50 and the oil drain ring 20. The oil scraper ring 40 and the bushing 50 are disposed at an end of the guide body 10 away from the oil drain ring 20. In the present application, a groove is provided on the guide body 10, and the oil scraper ring 40 is mounted within the groove of the guide body 10. The bushing 50 is squeezed into the guide body 10 to secure the oil scraper ring 40, thereby ensuring the stability of the installation of the oil scraper ring 40.

[0045] In the present application, the oil scraper ring 40 is made of non-metallic material, and the bushing 50 is made of copper with an inner ring covered with a non-metallic cladding layer.

[0046] In one embodiment, the oil drain ring 20 includes a plurality of oil drain holes 21, and the plurality of oil drain holes 21 are arranged at intervals along the circumference of the oil drain ring 20. This arrangement can maximize the oil drain efficiency of the oil drain ring 20 to meet the use requirements of the device. In the present application, there are 6 oil drain holes 21 and an annular groove on the oil drain ring 20. When the medium passes through the 6 oil drain holes 21, the pressure is reduced. Since the cross-sectional area of the 6 oil drain holes 21 is 6mm*3mm*1.6mm≈28.8mm3, the liquid enters the annular groove after flowing through the oil drain holes 21. When the medium contacts the oil baffle 30, the cross-sectional area of its contact surface is 2mm*3.14mm*36mm≈226mm3. Since P=F / S, S becomes larger, and therefore P becomes smaller, thereby achieving the effect of pressure relief.

[0047] In one embodiment, the oil baffle 30 includes a flexible material. Among them, the oil baffle 30 can be made of polyurethane (PU), which has excellent wear resistance, oil resistance and corrosion resistance, and is suitable for environments with relatively harsh working conditions. At the same time, the oil baffle 30 can also be made of rubber. Since rubber has good elasticity and tensile strength, it can meet the use requirements of the device. Furthermore, the oil baffle 30 can also be made of polytetrafluoroethylene, which has extremely high corrosion resistance and high and low temperature resistance, and is almost not corroded by any chemical substances. At the same time, its friction coefficient is extremely low and has excellent lubrication properties, so it is suitable for occasions with extremely high corrosion resistance and low friction performance. The specific setting should be set according to the actual use environment of the oil baffle 30, so that the applicability and scope of application of the oil baffle 30 can be improved.

[0048] In one embodiment, the guide body 10 and the oil drain ring 20 are integrally molded. The integrally molded structure is formed by integral die-casting or compression molding, so that the guide body 10 and the oil drain ring 20 are tightly combined, and the overall structure of the guide body 10 and the oil drain ring 20 is more solid and strong. This structure avoids the problems of seams and looseness that may exist in traditional assembly methods, and improves the durability and reliability of the guide body 10 and the oil drain ring 20. It also avoids the strength reduction that may be caused by processes such as welding. At the same time, when designing parts, factors such as mounting holes and mounting positions can be ignored, thereby using a more optimized engineering structure, further improving the overall strength of the guide body 10 and the oil drain ring 20. The integral molding process can maintain a high degree of precision during the manufacturing process, making the size and performance of the guide body 10 and the oil drain ring 20 more stable and reliable. This is particularly important for application scenarios that require high-precision matching and performance consistency.

[0049] In one embodiment, since the overall structure is tight and seamless, and corrosion-resistant materials are usually selected for manufacturing, the one-piece molded structure has good anti-rust properties and can be used for a long time in harsh environments without being easily damaged. At the same time, its excellent durability also reduces environmental pollution and waste of resources caused by frequent replacement and maintenance of equipment. Manufacturing the guide body 10 and the oil drain ring 20 through an one-piece molding process can simplify the production process, reduce the production cycle and reduce production costs. In addition, since the guide body 10 and the oil drain ring 20 have stable and reliable performance and strong durability, the subsequent maintenance costs can also be reduced. Long-lasting rust prevention: Since the overall structure is tight and seamless, and corrosion-resistant materials are usually selected for manufacturing, the one-piece molded structure has good anti-rust properties and can be used for a long time in harsh environments without being easily damaged.

[0050] like Figure 4 and Figure 5 As shown, according to the second aspect of the present application, a shock absorber 60 is provided, including the guide assembly 1 as above; a seal 70, which is covered on one end of the guide body 10 of the guide assembly 1 close to the oil drain ring 20; a cylinder body 80, which is sleeve-connected to the end of the guide body 10 away from the oil drain ring 20; a piston rod 90, which is penetrated and connected to the oil drain ring 20 and the seal 70, and one end of the piston rod 90 is located in the cylinder body 80, and the piston rod 90 can move relative to the guide assembly 1 along the axial direction of the guide body 10.

[0051] In this application, the guide assembly 1 is first threaded onto the piston rod 90, then mounted on the cylinder body 80, and the seal 70 is installed on the guide. The shaft passes through the guide and seal 70. A groove is defined in the guide body 10, into which the oil scraper ring 40 is installed. The extrusion bushing 50 enters the guide body 10 to secure the oil scraper ring 40. The oil drain ring 20 is fixed to the guide body 10 by extrusion, and the oil retainer 30 is installed in the groove created by the oil drain ring 20 and the guide body 10.

[0052] In this application, the seal 70 is made of a rubber-covered steel plate, and the seal 70 and the guide body 10 are positioned by a piston rod 90, which penetrates the seal 70 and the guide body 10. The guide end on the side is used to limit the position, and there is downward pressure on the seal 70 to ensure that it will not fall off.

[0053] In one embodiment, the oil scraper ring 40 and the bushing 50 of the guide assembly 1 are both mounted on the outer circumference of the piston rod 90, and the inner diameters of the oil scraper ring 40 and the bushing 50 are both larger than the outer diameter of the piston rod 90. In the present application, the gap between the bushing 50 and the piston rod 90 is larger than the gap between the oil scraper ring 40 and the piston rod 90. The reasons are as follows: The gap between the bushing 50 and the piston rod 90 is large: the bushing 50 mainly guides the piston rod 90 during the movement, so that it does not tilt, and ensures that the piston rod 90 moves up and down. The gap between the oil scraper ring 40 and the piston rod 90 is small: the oil scraper ring 40 mainly scrapes off the oil brought out during the up and down movement of the piston rod 90, and tries to ensure that the oil is in the cylinder body 80.

[0054] In one embodiment, the seal 70, the guide body 10, the oil drain ring 20 of the guide assembly 1, and the oil retaining member 30 of the guide assembly 1 cooperate to form an outer chamber 100. The seal 70, the piston rod 90, and the oil drain ring 20 cooperate to form an inner chamber 110. When the pressure on the side of the oil retaining member 30 near the inner chamber 110 is greater than the pressure on the side of the oil retaining member 30 near the outer chamber 100, the medium can flow from the inner chamber 110 to the outer chamber 100. This arrangement can realize the one-way valve function of the shock absorber 60, meeting the usage requirements of the device.

[0055] In one embodiment, when the piston rod 90 moves upward, the pressure in the inner chamber 110 increases, while the pressure in the outer chamber 100 decreases. The medium passes through the inner chamber 110 and flows sequentially through the oil drain hole 21 and the pressure relief groove 22 of the guide assembly 1. When the medium pressure reaches a certain threshold, the medium flows into the outer chamber 100. Through the above movement process, as the piston rod 90 moves upward, the volume of the lower chamber decreases, squeezing the oil, increasing the pressure in the inner chamber 110, thereby allowing the medium to enter the outer chamber 100.

[0056] In one embodiment, when the piston rod 90 moves downward, the pressure in the inner chamber 110 decreases, while the pressure in the outer chamber 100 increases. The medium in the outer chamber 100 is blocked by the oil baffle 30 and cannot flow from the outer chamber 100 into the inner chamber 110. As the volume of the lower chamber increases, the pressure in the outer chamber 100 increases. At this point, the medium in the outer chamber 100 is blocked by the oil baffle 30, preventing it from flowing. This one-way flow characteristic functions as a one-way valve.

[0057] According to a third aspect of the present application, a vehicle is further provided, comprising the shock absorber 60 as described above.

[0058] In the guide assembly 1 of the embodiment of the present application, there is provided a guide assembly 1, comprising: a guide body 10; an oil drain ring 20, fixedly connected to the guide body 10, with an oil drain hole 21 provided on the side wall of the oil drain ring 20; and an oil baffle 30, sleeved on the outer circumference of the oil drain ring 20 to block the oil drain hole 21. Through the above technical solution, when the medium flows out of the oil drain hole 21 of the guide body 10 through the oil drain ring 20 and contacts the oil baffle 30, since the contact area between the medium and the oil baffle 30 is large, it can be ensured that the force applied to the medium through the oil baffle 30 is relatively uniform, and the structure of the oil baffle 30 will not be easily deformed, thereby protecting the structure of the oil baffle 30 and extending the service life of the oil baffle 30.

[0059] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0062] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. Although the descriptions of each embodiment in the embodiments of the present application have different focuses, for parts that are not described in detail in a certain embodiment, reference can be made to the relevant embodiments of other embodiments. However, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A guide assembly, characterized in that: include: Guide body; an oil drain ring fixed relative to the guide body, and having an oil drain hole on a side wall of the oil drain ring; The oil baffle is arranged on the outer periphery of the oil leakage ring to block the oil leakage hole. The medium contacts the oil baffle through the oil leakage hole, so that the oil baffle can open the oil leakage hole under the action of pressure difference.

2. The guide assembly according to claim 1, wherein: The contact area between the medium and the oil blocking member near the oil drain hole is S1, the maximum cross-sectional area of the oil drain hole is S2, and S1>S2.

3. The guide assembly according to claim 1, wherein: The oil drain ring includes a plurality of oil drain holes, the guide assembly includes a plurality of oil baffles, and the oil drain holes and the oil baffles are arranged in a one-to-one correspondence; or, the oil baffles extend along the circumference of the oil drain ring into an annular structure and block the plurality of oil drain holes.

4. The guide assembly according to claim 1, wherein: The oil baffle is a baffle ring, which is sleeved on the outer circumference of the oil drain ring.

5. The guide assembly according to claim 1, wherein: A gap is provided between the side wall of the oil baffle member close to the oil leakage ring and the oil leakage hole, and the gap forms a pressure relief groove.

6. The guide assembly according to claim 1, wherein: The guide assembly also includes an oil scraper ring and a bushing. The oil scraper ring and the bushing are arranged in the guide body along the axial direction of the guide body. The oil scraper ring is located between the bushing and the oil drain ring. The oil scraper ring and the bushing are arranged at one end of the guide body away from the oil drain ring.

7. The guide assembly according to claim 1, wherein: The oil leakage ring includes a plurality of oil leakage holes, and the plurality of oil leakage holes are arranged at intervals along the circumference of the oil leakage ring.

8. The guide assembly according to claim 1, wherein: The oil blocking member comprises a flexible material.

9. The guide assembly according to claim 1, wherein: The guide body and the oil drain ring are an integrally formed structure.

10. A shock absorber, characterized in that: include: The guide assembly according to any one of claims 1 to 9; a sealing member, which is provided on one end of the guide body of the guide assembly close to the oil drain ring; a cylinder body, sleeve-connected to an end of the guide body away from the oil drain ring; A piston rod is connected to the oil drain ring and the sealing member, one end of the piston rod is located in the cylinder body, and the piston rod can move relative to the guide assembly along the axial direction of the guide body.

11. The shock absorber according to claim 10, characterized in that The oil scraper ring and the bushing of the guide assembly are both sleeved on the outer circumference of the piston rod, and the inner diameters of the oil scraper ring and the bushing are both larger than the outer diameter of the piston rod.

12. The shock absorber according to claim 10, characterized in that The seal, the guide body, the oil drain ring of the guide assembly, and the oil baffle of the guide assembly cooperate with each other to form an outer chamber, and the seal, the piston rod, and the oil drain ring cooperate with each other to form an inner chamber. When the pressure on the oil baffle close to the inner chamber is greater than the pressure on the oil baffle close to the outer chamber, the medium can flow from the inner chamber to the outer chamber.

13. The shock absorber according to claim 12, characterized in that When the piston rod moves upward, the pressure in the inner chamber increases and the pressure in the outer chamber decreases. The medium passes through the inner chamber and flows through the oil drain hole of the guide assembly and the pressure reducing groove of the guide assembly in sequence. When the medium pressure reaches a certain threshold, the medium flows to the outer chamber.

14. The shock absorber according to claim 12, characterized in that When the piston rod moves downward, the pressure in the inner chamber decreases, and the pressure in the outer chamber increases. The medium in the outer chamber is blocked by the oil blocking member and cannot flow from the outer chamber into the inner chamber.

15. A vehicle, characterized in that: The vibration absorber comprises the vibration absorber according to any one of claims 10 to 14.

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