Damping-adjustable shock absorber and vehicle

Abstract

The utility model provides an adjustable damping shock absorber and a vehicle, relates to the technical field of vehicle shock absorption, and aims to optimize the structure of the shock absorber to a certain extent, reduce the complexity of the shock absorber and reduce the manufacturing cost. The utility model provides an adjustable damping shock absorber. The adjustable damping shock absorber comprises a shell, a piston assembly, a working cavity, an adjusting electromagnetic valve assembly and a one-way valve assembly. The working cavity is formed in an inner cavity of the shell, one end of the piston assembly is located in the working cavity, and the working cavity is divided into a first cavity and a second cavity which are independent from each other; a first middle cavity communicated with the first cavity is formed outside the first cavity, a second middle cavity communicated with the second cavity is formed outside the second cavity, and the one-way valve set is arranged on the first middle cavity and enables the inner cavity to be communicated with the first middle cavity in a one-way mode. The adjusting electromagnetic valve assembly comprises a first valve and a second valve, the first valve is communicated with the first middle cavity and the inner cavity, and the second valve is communicated with the second middle cavity and the inner cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle vibration reduction, in particular to an adjustable damping shock absorber and a vehicle. Background Art

[0002] Adjustable damping shock absorbers can automatically increase the damping force when the vehicle turns or encounters uneven roads to adapt to the vibrations caused by turns or uneven roads, thereby improving the vehicle's driving stability and controllability and enhancing the driving experience.

[0003] However, the existing adjustable damping shock absorber has a complex structure and a cumbersome adjustment process, resulting in high manufacturing and subsequent maintenance costs of the shock absorber.

[0004] Therefore, there is an urgent need to provide an adjustable damping shock absorber and a vehicle to solve the problems in the prior art to a certain extent. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable damping shock absorber and a vehicle, so as to optimize the shock absorber structure to a certain extent, reduce the complexity of the shock absorber, and reduce the manufacturing cost.

[0006] The utility model provides an adjustable damping shock absorber, comprising a shell, a piston assembly, a working chamber, an adjusting solenoid valve assembly and a one-way valve assembly; the working chamber is arranged in the inner chamber of the shell, one end of the piston assembly is located in the working chamber, and the working chamber is divided into a first chamber and a second chamber that are independent of each other; a first intermediate chamber connected to the first chamber is formed outside the first chamber, and a second intermediate chamber connected to the second chamber is formed outside the second chamber, the one-way valve group is arranged on the first intermediate chamber, and the inner chamber is connected to the first intermediate chamber in one direction; the adjusting solenoid valve assembly comprises a first valve and a second valve, the first valve is connected to the first intermediate chamber and the inner chamber, and the second valve is connected to the second intermediate chamber and the inner chamber.

[0007] A first leakage hole is formed on the wall of the first chamber, so that the first chamber is connected to the first intermediate chamber; a second leakage hole is formed on the wall of the second chamber, so that the second chamber is connected to the second intermediate chamber.

[0008] Specifically, the one-way valve assembly includes a valve cover, a valve plate and an elastic member. A through hole is formed on the wall of the first intermediate cavity, and a valve seat is formed at the position corresponding to the through hole. The elastic member and the valve plate are both embedded in the valve seat, and the valve cover is covered on the valve seat; the valve cover is formed with a hollow hole.

[0009] Furthermore, the piston assembly includes a piston rod and a guide member; the guide member is located at one end of the shell, and the guide member is formed with a positioning portion, the end of the working chamber is sleeved on the positioning portion and is sealed with the positioning portion; the piston rod passes through the guide member and enters the working chamber.

[0010] Furthermore, the piston assembly further includes a restoring valve component connected to one end of the piston rod located in the working chamber, and the restoring valve component divides the working chamber into the first chamber and the second chamber.

[0011] Furthermore, the piston assembly further includes an oil seal, which is located between the guide member and the housing and is sleeved on the piston rod.

[0012] Among them, the adjustable damping shock absorber provided by the present invention also includes a compression valve component, which is sealed at one end of the second chamber away from the first chamber, and the compression valve component is formed with a flow hole, which is connected to the inner cavity.

[0013] Specifically, the first valve is formed with a first oil port and a second oil port, the first oil port is connected to the first intermediate cavity, and the second oil port is connected to the inner cavity; the second valve is formed with a third oil port and a fourth oil port, the third oil port is connected to the second chamber, and the fourth oil port is connected to the inner cavity.

[0014] Furthermore, the adjustable damping shock absorber provided by the present invention further includes a sealing member, wherein the sealing member is located between the first intermediate cavity and the first chamber and between the second intermediate cavity and the second chamber.

[0015] Compared with the prior art, the adjustable damping shock absorber provided by the utility model has the following advantages:

[0016] The adjustable damping shock absorber provided by the utility model includes a shell, a piston assembly, a working chamber, an adjusting solenoid valve assembly and a one-way valve assembly; the working chamber is arranged in the inner chamber of the shell, one end of the piston assembly is located in the working chamber, and the working chamber is divided into a first chamber and a second chamber that are independent of each other; a first intermediate chamber connected to the first chamber is formed outside the first chamber, and a second intermediate chamber connected to the second chamber is formed outside the second chamber, and the one-way valve group is arranged on the first intermediate chamber, and the inner chamber is connected to the first intermediate chamber in one direction; the adjusting solenoid valve assembly includes a first valve and a second valve, the first valve is connected to the first intermediate chamber and the inner chamber, and the second valve is connected to the second intermediate chamber and the inner chamber.

[0017] From this analysis, it can be seen that the working chamber is divided into a first chamber and a second chamber that are independent of each other by the piston assembly, and a first intermediate chamber is further set outside the first chamber, and a second intermediate chamber is further set outside the second chamber. The first intermediate chamber and the second intermediate chamber in this application are independent of each other, the first chamber is connected to the first intermediate chamber, and the second chamber is connected to the second intermediate chamber, so that when the piston assembly performs piston movement in the working chamber, it can compress the first chamber or the second chamber.

[0018] It can be understood that when the piston assembly is in the compression stroke, the piston assembly compresses the second chamber, correspondingly increasing the volume of the first chamber. During this process, the oil in the second chamber enters the second intermediate chamber. Since the second valve in this application is connected to the second intermediate chamber and the inner chamber, the oil in the second chamber can enter the second valve from the second intermediate chamber and then flow into the inner chamber through the second valve. At the same time, due to the increase in the volume of the first chamber, a negative pressure is generated. Since the one-way valve assembly in this application connects the inner chamber to the first intermediate chamber in one direction, the oil in the inner chamber, under the action of the negative pressure, flows from the inner chamber through the one-way valve assembly into the first intermediate chamber and ultimately into the first chamber, achieving oil balance. During this process, since the second valve in this application is connected to the second intermediate chamber and the inner chamber, the damping force during the compression process can be adjusted solely by the second valve, without the involvement of the first valve, the first chamber, and the first intermediate chamber, thereby simplifying and clarifying the adjustment process.

[0019] Correspondingly, when the piston assembly is in the stretching stroke, the piston assembly compresses the first chamber and the volume of the second chamber increases. In the process of compressing the first chamber, the oil in the first chamber enters the first intermediate chamber. Since the first valve in the present application is connected to the first intermediate chamber and the inner chamber, the one-way valve assembly connects the inner chamber to the first intermediate chamber in one direction. Therefore, the oil in the first chamber can only enter the second valve from the first intermediate chamber and flow into the inner chamber through the second valve. At the same time, since the volume of the second chamber increases, a negative pressure is formed. Therefore, the oil in the inner chamber enters the second intermediate chamber through the second valve under the action of the negative pressure, and finally enters the second chamber to achieve oil balance. In this process, since the adjustment of the damping force of the first chamber in the present application can be achieved only by relying on the first valve, without the participation of the second valve, the second chamber and the second intermediate chamber, the adjustment process is also simple and clear.

[0020] Therefore, the present application can achieve independent damping force adjustment in the stretching and compression processes through a one-way valve assembly and a first valve and a second valve that are separately connected. The structure is simpler and the adjustment logic is clearer, which can greatly reduce the complexity of the structure and reduce manufacturing and subsequent maintenance costs.

[0021] In addition, the present invention also provides a vehicle that uses the adjustable damping shock absorber described above in this application.

[0022] Vehicles using the adjustable damping shock absorber provided by this application can reduce the manufacturing cost and subsequent maintenance cost of the shock absorber due to the simpler structure of the shock absorber, thereby correspondingly reducing the manufacturing cost and subsequent use cost of the vehicle and improving user acceptance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic structural diagram of an adjustable damping shock absorber provided in an embodiment of the present utility model;

[0025] Figure 2 A schematic structural diagram of a one-way valve assembly in an adjustable damping shock absorber provided in an embodiment of the utility model.

[0026] In the figure: 1-housing; 101-inner cavity; 2-piston rod; 3-guide member; 4-oil seal; 5-working chamber; 501-first chamber; 5011-first leakage hole; 502-second chamber; 5021-second leakage hole; 6-first intermediate chamber; 601-valve seat; 7-second intermediate chamber; 8-one-way valve assembly; 801-valve cover; 802-valve plate; 803-elastic member; 9-restoration valve member; 10-compression valve member; 11-first valve; 12-second valve; 13-sealing member. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0028] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0030] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0032] For ease of description, spatially relative terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as illustrated in the drawings. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0033] The terms used herein are intended only to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0034] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0035] The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various configurations, other configurations are possible, as will be apparent upon understanding the disclosure of this application. In addition, the technical solutions between the various embodiments may be combined with each other, but this must be based on the ability of a person of ordinary skill in the art to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] like Figure 1 As shown, the utility model provides an adjustable damping shock absorber, including a shell 1, a piston assembly, a working chamber 5, an adjusting solenoid valve assembly and a one-way valve assembly 8; the working chamber 5 is arranged in the inner chamber 101 of the shell 1, one end of the piston assembly is located in the working chamber 5, and the working chamber 5 is divided into a first chamber 501 and a second chamber 502 independent of each other; a first intermediate chamber 6 connected to the first chamber 501 is formed outside the first chamber 501, and a second intermediate chamber 7 connected to the second chamber 502 is formed outside the second chamber 502, the one-way valve group is arranged on the first intermediate chamber 6, and the inner chamber 101 is connected to the first intermediate chamber 6 in one direction; the adjusting solenoid valve assembly includes a first valve 11 and a second valve 12, the first valve 11 is connected to the first intermediate chamber 6 and the inner chamber 101, and the second valve 12 is connected to the second intermediate chamber 7 and the inner chamber 101.

[0037] Compared with the prior art, the adjustable damping shock absorber provided by the utility model has the following advantages:

[0038] The adjustable damping shock absorber provided by the present invention divides the working chamber 5 into a first chamber 501 and a second chamber 502 which are independent of each other through a piston assembly, and a first intermediate chamber 6 is further arranged outside the first chamber 501, and a second intermediate chamber 7 is further arranged outside the second chamber 502. The first intermediate chamber 6 and the second intermediate chamber 7 in this application are independent of each other, the first chamber 501 is connected to the first intermediate chamber 6, and the second chamber 502 is connected to the second intermediate chamber 7, so that when the piston assembly performs piston motion in the working chamber 5, it can compress the first chamber 501 or the second chamber 502.

[0039] It is understandable that when the piston assembly is in the compression stroke, the piston assembly compresses the second chamber 502, and accordingly, the volume of the first chamber 501 increases. During the compression of the second chamber 502, the oil in the second chamber 502 enters the second intermediate chamber 7. Since the second valve 12 in the present application is connected to the second intermediate chamber 7 and the inner chamber 101, the oil in the second chamber 502 can enter the second valve 12 from the second intermediate chamber 7 and flow into the inner chamber 101 through the second valve 12. At the same time, since the volume of the first chamber 501 increases, a negative pressure is formed, and the one-way valve assembly 8 in the present application connects the inner chamber 101 with the first intermediate chamber 6 in one direction, the oil in the inner chamber 101, under the action of the negative pressure, flows from the inner chamber 101 through the one-way valve assembly 8 into the first intermediate chamber 6 and finally into the first chamber 501, achieving oil balance. During this process, since the second valve 12 in this application is connected to the second intermediate chamber 7 and the inner chamber 101, the adjustment of the damping force in the compression process can be achieved only by relying on the second valve 12, without the participation of the first valve 11, the first chamber 501 and the first intermediate chamber 6, thereby making the adjustment process simpler and clearer.

[0040] Accordingly, when the piston assembly is in the extension stroke, the piston assembly compresses the first chamber 501, and the volume of the second chamber 502 increases. During the compression of the first chamber 501, the oil in the first chamber 501 enters the first intermediate chamber 6. Since the first valve 11 in the present application is connected to the first intermediate chamber 6 and the inner chamber 101, and the one-way valve assembly 8 connects the inner chamber 101 with the first intermediate chamber 6 in one direction, the oil in the first chamber 501 can only enter the second valve 12 from the first intermediate chamber 6 and flow into the inner chamber 101 through the second valve 12. At the same time, since the volume of the second chamber 502 increases, a negative pressure is formed. Therefore, under the action of the negative pressure, the oil in the inner chamber 101 enters the second intermediate chamber 7 through the second valve 12 and finally enters the second chamber 502, achieving oil balance. In this process, since the adjustment of the damping force of the first chamber 501 in this application can be achieved only by relying on the first valve 11, without the participation of the second valve 12, the second chamber 502 and the second intermediate chamber 7, the adjustment process is also simple and clear.

[0041] Therefore, the present application can realize independent damping force adjustment of the stretching and compression processes through the one-way valve assembly 8 and the first valve 11 and the second valve 12 that are separately connected. The structure is simpler and the adjustment logic is clearer, which can greatly reduce the complexity of the structure and reduce the manufacturing and subsequent maintenance costs.

[0042] Alternatively, as Figure 1As shown, a first leakage hole 5011 is formed on the wall of the first chamber 501 in the present application, so that the first chamber 501 is connected to the first intermediate chamber 6; a second leakage hole 5021 is formed on the wall of the second chamber 502, so that the second chamber 502 is connected to the second intermediate chamber 7, thereby realizing the circulation of oil between the first chamber 501 and the first intermediate chamber 6 and between the second chamber 502 and the second intermediate chamber 7.

[0043] Alternatively, as Figure 2 As shown, the one-way valve assembly 8 in the present application includes a valve cover 801, a valve plate 802 and an elastic member 803. A through hole is formed on the wall of the first intermediate cavity 6, and a valve seat 601 is formed at the position corresponding to the through hole. The elastic member 803 and the valve plate 802 are both embedded in the valve seat 601, and the valve cover 801 is covered on the valve seat 601; the valve cover 801 is formed with a hollow hole.

[0044] Oil can enter through the hollow hole and pass through the valve plate 802. Accordingly, one-way flow of oil can be achieved through the elastic member 803. Since the valve seat 601 in the present application is directly formed on the wall of the first intermediate cavity 6, the structural strength of the overall one-way valve assembly 8 can be greatly improved, the stability of the shock absorber can be ensured, and the service life can be increased.

[0045] It should be noted that the elastic member 803 in the present application may be a spring, a spring or an elastic material, such as an elastic structure made of rubber.

[0046] Alternatively, as Figure 1 As shown, the piston assembly in the present application includes a piston rod 2 and a guide member 3; the guide member 3 is located at one end of the shell 1, and the guide member 3 is formed with a positioning portion, and the end of the working chamber 5 is sleeved on the positioning portion and sealed with the positioning portion; the piston rod 2 passes through the guide member 3 and enters the working chamber 5.

[0047] The guide member 3 is provided to position and guide the piston rod 2 so that the piston rod 2 can always reciprocate along the axial direction of the working chamber 5, thereby preventing the piston rod 2 from being deflected and damaged, and improving the stability of the overall structural movement.

[0048] Alternatively, as Figure 1 As shown, the piston assembly in the present application further includes a restoring valve component 9 , which is connected to one end of the piston rod 2 located in the working chamber 5 , and the restoring valve component 9 divides the working chamber 5 into a first chamber 501 and a second chamber 502 .

[0049] The restoring valve component 9 in the present application is movably sealed and connected to the working chamber 5, that is, the restoring valve component 9 can move relative to the working chamber 5, and can also separate the working chamber 5 into two relatively independent first chambers 501 and second chambers 502 through the restoring valve component 9. It can be understood that since the restoring valve component 9 needs to have relative movement with the working chamber 5, the above-mentioned sealing connection is not absolutely sealed, and there will be a very small amount of oil leakage during the process, which will not affect the overall adjustment process and will not be elaborated here.

[0050] Accordingly, if Figure 1 As shown, the piston assembly in the present application further includes an oil seal 4, which is located between the guide member 3 and the housing 1 and is sleeved on the piston rod 2, so that a seal is generated between the piston rod 2 and the housing 1 to prevent oil leakage.

[0051] Alternatively, as Figure 1 As shown, the adjustable damping shock absorber provided by the present invention further includes a compression valve component 10, which is sealed at one end of the second chamber 502 away from the first chamber 501, and the compression valve component 10 is formed with a flow hole, which is connected to the inner cavity 101.

[0052] When the second chamber 502 is compressed, since a flow hole is formed on the compression valve component 10, part of the oil can enter the inner cavity 101 through the flow hole, and part of it enters the second intermediate cavity 7 through the above-mentioned second leakage hole 5021, and flows into the inner cavity 101 through the second valve 12.

[0053] It can be understood that the first valve 11 in the present application is formed with a first oil port and a second oil port, the first oil port is connected to the first intermediate cavity 6, and the second oil port is connected to the inner cavity 101; the second valve 12 is formed with a third oil port and a fourth oil port, the third oil port is connected to the second chamber 502, and the fourth oil port is connected to the inner cavity 101.

[0054] Preferably, if Figure 1 As shown, the adjustable damping shock absorber provided by the present invention further includes a sealing member 13 , which is located between the first intermediate cavity 6 and the first chamber 501 and between the second intermediate cavity 7 and the second chamber 502 .

[0055] In addition, the present invention also provides a vehicle that uses the adjustable damping shock absorber described above in this application.

[0056] Vehicles using the adjustable damping shock absorber provided by this application can reduce the manufacturing cost and subsequent maintenance cost of the shock absorber due to the simpler structure of the shock absorber, thereby correspondingly reducing the manufacturing cost and subsequent use cost of the vehicle and improving user acceptance.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable damping shock absorber, characterized in that: It includes a housing, a piston assembly, a working chamber, a regulating solenoid valve assembly and a one-way valve assembly; The working chamber is provided in the inner chamber of the housing, one end of the piston assembly is located in the working chamber, and the working chamber is divided into a first chamber and a second chamber which are independent of each other; A first intermediate cavity communicating with the first chamber is formed outside the first cavity, a second intermediate cavity communicating with the second chamber is formed outside the second cavity, and the one-way valve assembly is disposed on the first intermediate cavity to enable one-way communication between the inner cavity and the first intermediate cavity; The regulating solenoid valve assembly includes a first valve and a second valve. The first valve is in communication with the first intermediate cavity and the inner cavity. The second valve is in communication with the second intermediate cavity and the inner cavity.

2. The adjustable damping shock absorber according to claim 1, characterized in that: A first leakage hole is formed on the wall of the first chamber, so that the first chamber is connected with the first intermediate chamber; A second leakage hole is formed on the wall of the second chamber, so that the second chamber is connected with the second intermediate chamber.

3. The adjustable damping shock absorber according to claim 1, characterized in that: The one-way valve assembly includes a valve cover, a valve disc, and an elastic member. A through hole is formed on the wall of the first intermediate chamber, and a valve seat is formed at a position corresponding to the through hole. The elastic member and the valve disc are both embedded in the valve seat, and the valve cover is covered on the valve seat. The valve cover is formed with a hollow hole.

4. The adjustable damping shock absorber according to claim 1, characterized in that: The piston assembly includes a piston rod and a guide member; The guide member is located at one end of the housing, and a positioning portion is formed on the guide member. The end of the working chamber is sleeved on the positioning portion and is sealed with the positioning portion. The piston rod passes through the guide member and enters the working chamber.

5. The adjustable damping shock absorber according to claim 4, characterized in that: The piston assembly further includes a restoration valve component connected to one end of the piston rod located in the working chamber, and the restoration valve component divides the working chamber into the first chamber and the second chamber.

6. The adjustable damping shock absorber according to claim 4, characterized in that: The piston assembly further includes an oil seal, which is located between the guide member and the housing and sleeved on the piston rod.

7. The adjustable damping shock absorber according to claim 1, characterized in that: It also includes a compression valve component, which is sealed at one end of the second chamber away from the first chamber, and has a flow hole formed on the compression valve component, which is communicated with the inner cavity.

8. The adjustable damping shock absorber according to claim 1, characterized in that: The first valve is formed with a first oil passage port and a second oil passage port, the first oil passage port is connected to the first intermediate cavity, and the second oil passage port is connected to the inner cavity; The second valve is formed with a third oil passage port and a fourth oil passage port. The third oil passage port is communicated with the second chamber, and the fourth oil passage port is communicated with the inner cavity.

9. The adjustable damping shock absorber according to claim 1, characterized in that: Also included are seals located between the first intermediate cavity and the first chamber and between the second intermediate cavity and the second chamber.

10. A vehicle, characterized in that: The adjustable damping vibration absorber comprises any one of claims 1 to 9.

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