Shock absorber and vehicle
By designing multiple damping mechanisms and partition sealing components in the damper, the problem of insufficient damping adjustment range and accuracy in the prior art is solved, and a higher damping adjustment capability is achieved, which improves the driving experience of the vehicle.
Patent Information
- Application Number
- CN202420181547.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-25
AI Technical Summary
The existing shock absorbers have small damping adjustment range and adjustment accuracy, which cannot meet the needs of higher damping adjustment for improved vehicle driving quality.
A vibration damper including multiple damping mechanisms is designed to adjust the resistance of the fluid from the first cavity to the second cavity through a damping valve, increase the damping adjustment range and accuracy, and to transfer the second cavity through a separating seal assembly Separated into multiple sub-cavities to simplify production and assembly.
A larger damping adjustment range and higher adjustment accuracy are achieved, improving the driving quality, safety and comfort of the vehicle.
Smart Images
Figure CN222351269U_ABST
Abstract
Description
Technical Field
[0001] Embodiments of the present disclosure relate to a shock absorber and a vehicle. Background Art
[0002] When a vehicle is driving over an uneven road, the elastic elements (such as springs) of the suspension system can filter out the unevenness of the road through their own elastic deformation, thereby reducing the bumps of the vehicle. In this process, the suspension system vibrates due to the impact on the elastic elements, and the shock absorber can suppress this vibration and accelerate the attenuation of the vibration of the suspension system, thereby improving the safety and smoothness of vehicle driving.
[0003] At present, the shock absorbers widely used in vehicles are cylinder shock absorbers, which can play a vibration reduction role in both the compression and extension strokes of the piston. The relative movement between the piston and the working cylinder in the shock absorber and the flow of oil in the shock absorber are used to absorb vibration energy, thereby suppressing vibration and accelerating the attenuation of vibration. Utility Model Content
[0004] The embodiment of the present disclosure provides a shock absorber and a vehicle. The shock absorber includes a first cylinder, a second cylinder and a third cylinder; the second cylinder is sleeved outside the first cylinder and forms a first cavity between the first cylinder and the second cylinder with the first cylinder; the third cylinder is located inside the first cylinder and forms a second cavity between the first cylinder and the third cylinder with the first cylinder; the first cylinder includes a first opening located on the side wall of the first cylinder and penetrating the side wall, and the first opening connects the first cavity with the second cavity; the second cylinder includes a second opening located on the side wall of the second cylinder and penetrating the side wall; the shock absorber also includes a plurality of damping mechanisms, each of which includes a damping valve, a first opening and a second opening, and the damping valve includes a liquid inlet end and a liquid outlet end; in each damping mechanism, the liquid inlet end of the damping valve is connected to the first opening, and the liquid outlet end of the damping valve is connected to the second opening, and the damping valve is configured to adjust the resistance of the fluid flowing from the first opening to the second opening. Therefore, the shock absorber can adjust the damping of the shock absorber through multiple damping mechanisms, so as to at least increase the damping adjustment range or adjustment accuracy of the shock absorber.
[0005] At least one embodiment of the present disclosure provides a shock absorber, which includes: a first cylinder body; a second cylinder body, which is sleeved outside the first cylinder body and forms a first cavity between the first cylinder body and the second cylinder body with the first cylinder body; and a third cylinder body, which is located inside the first cylinder body and forms a second cavity between the first cylinder body and the third cylinder body with the first cylinder body; the first cylinder body includes a first opening located on the side wall of the first cylinder body and penetrating the side wall, and the first opening connects the first cavity and the second cavity; the second cylinder body includes a second opening located on the side wall of the second cylinder body and penetrating the side wall, and the shock absorber also includes a plurality of damping mechanisms, each of which includes a damping valve, a first opening and a second opening, and the damping valve includes a liquid inlet end and a liquid outlet end. In each of the damping mechanisms, the liquid inlet end of the damping valve is connected to the first opening, and the liquid outlet end of the damping valve is connected to the second opening, and the damping valve is configured to adjust the resistance of the fluid flowing from the first opening to the second opening.
[0006] For example, in the shock absorber provided in one embodiment of the present disclosure, the third cylinder body has a third cavity therein, and the third cylinder body includes a third opening located on the side wall of the third cylinder body and penetrating the side wall, and the third opening connects the third cavity with the second cavity.
[0007] For example, in the shock absorber provided in one embodiment of the present disclosure, the second cavity includes a plurality of sub-cavities arranged along the axial direction of the first cylinder body, and a partition sealing assembly is arranged between two adjacent sub-cavities; the third cylinder body includes a plurality of third openings arranged one-to-one corresponding to the plurality of sub-cavities, each of the third openings connects the third cavity with the corresponding sub-cavity, and the plurality of first openings of the plurality of damping mechanisms are respectively arranged one-to-one corresponding to the plurality of sub-cavities, and each of the damping mechanisms is configured to individually adjust the resistance of the fluid flowing from the sub-cavity to the first cavity.
[0008] For example, in the shock absorber provided in an embodiment of the present disclosure, the separation sealing assembly includes: a sealing member, located between the first cylinder body and the third cylinder body; a movable limiting assembly, sleeved on the third cylinder body and movable in the axial direction of the third cylinder body; a limiting groove, located on the side of the third cylinder body facing the first cylinder body; and a blocking member, the movable limiting assembly is configured to limit the sealing member, the blocking member is partially located in the limiting groove, and is configured to block the movable limiting assembly.
[0009] For example, in the shock absorber provided in one embodiment of the present disclosure, the second cavity is a continuous cavity connected to the third opening, each part of the second cavity is connected to the third cavity through the first opening, and the multiple damping mechanisms are configured to jointly adjust the resistance of the fluid flowing from the second cavity to the first cavity.
[0010] For example, in a shock absorber provided in an embodiment of the present disclosure, the multiple damping mechanisms include a first damping mechanism and a second damping mechanism, and the third opening is located on a side of the second damping mechanism away from the first damping mechanism in the axial direction of the first cylinder.
[0011] For example, in a shock absorber provided by an embodiment of the present disclosure, the plurality of damping mechanisms are arranged at intervals along the circumferential direction of the first cylinder body.
[0012] For example, in the shock absorber provided in an embodiment of the present disclosure, a first end sealing assembly and a second end sealing assembly are arranged between the first cylinder body and the third cylinder body, the first end sealing assembly is located at the first end of the first cylinder body, and the second end sealing assembly is located at the second end of the first cylinder body to seal the second cavity; the first opening is located between the first end sealing assembly and the second end sealing assembly in the axial direction of the first cylinder body.
[0013] For example, in a shock absorber provided in an embodiment of the present disclosure, the plurality of damping mechanisms are arranged at intervals along the axial direction of the first cylinder.
[0014] For example, in the shock absorber provided in an embodiment of the present disclosure, the damping valve further includes a valve housing, and in each of the damping mechanisms, the valve housing is located on a side of the second cylinder body away from the first cylinder body.
[0015] For example, in a shock absorber provided in an embodiment of the present disclosure, in each of the damping mechanisms, the orthographic projection of the first opening on the second cylinder body is located within the second opening.
[0016] For example, in the shock absorber provided in an embodiment of the present disclosure, in each of the damping mechanisms, the first opening is connected to the liquid inlet end of the damping valve through a connecting member.
[0017] For example, in the shock absorber provided in an embodiment of the present disclosure, in each of the damping mechanisms, the second opening includes a middle area and a peripheral area, the liquid inlet end of the damping valve is connected to the first opening through the middle area, and the liquid outlet end of the damping valve is connected to the peripheral area of the second opening.
[0018] For example, the shock absorber provided by one embodiment of the present disclosure also includes: a piston rod, which is located in the third cavity and is configured to reciprocate along the axial direction of the third cavity; a piston, which is located at one end of the piston rod to separate the third cavity into two working chambers; an end cover, which is sleeved on the piston rod and seals one end of the second cylinder body and the third cylinder body; and a compression valve, which is located at one end of the third cylinder body away from the end cover.
[0019] For example, in the shock absorber provided in an embodiment of the present disclosure, the multiple damping mechanisms include a first damping mechanism and a second damping mechanism, the first damping mechanism is located at the end of the first cylinder body close to the compression valve, and the second damping mechanism is located on the side of the first damping mechanism away from the compression valve.
[0020] At least one embodiment of the present disclosure further provides a vehicle, which includes the shock absorber described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, but are not intended to limit the present disclosure.
[0022] Figure 1 and Figure 2 is a working schematic diagram of a shock absorber;
[0023] Figure 3 A schematic diagram of the structure of a shock absorber provided in one embodiment of the present disclosure;
[0024] Figure 4 A structural schematic diagram of a sealing assembly provided in one embodiment of the present disclosure;
[0025] Figure 5 A schematic diagram of the structure of another shock absorber provided by an embodiment of the present disclosure;
[0026] Figure 6 A schematic diagram of a vehicle provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0028] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
[0029] The features such as "perpendicular", "parallel" and "same" used in the present disclosure include the features such as "perpendicular", "parallel" and "same" in a strict sense, as well as the cases where "approximately perpendicular", "approximately parallel" and "approximately the same" contain certain errors, taking into account the errors associated with the measurement of specific quantities (that is, the limitations of the measurement system), and are expressed within the acceptable deviation range for a specific value determined by ordinary technicians in this field. The "center" in the embodiments of the present disclosure can include a position strictly located at the geometric center and a position approximately centered within a small area around the geometric center. For example, "approximately" can mean within one or more standard deviations, or within 10% or 5% of the value.
[0030] Figure 1 and Figure 2 Figure 1 is a schematic diagram of the operation of a shock absorber. Figure 1 and Figure 2 As shown, the shock absorber 10 includes a working cylinder 11, an intermediate cylinder 12 and an oil storage cylinder 13. The working cylinder 11 has a working chamber, and a piston 14 is arranged in the working chamber, which can reciprocate in the working chamber. An intermediate chamber is formed between the intermediate cylinder 12 and the working cylinder 11, and an oil storage chamber is formed between the intermediate cylinder 12 and the oil storage cylinder 13. An opening is arranged on the side wall of the working cylinder 11 to connect the working chamber with the intermediate chamber, and an opening is also arranged on the side wall of the intermediate cylinder 12 to connect the intermediate chamber with the oil storage chamber. An opening is also arranged on the side wall of the oil storage chamber 13 to connect the liquid inlet end of the damping valve 15 with the opening on the side wall of the intermediate cylinder 12, and the liquid outlet end of the damping valve 15 with the opening on the side wall of the oil storage cylinder 13. The damping valve 15 is configured to adjust the resistance of the fluid from the intermediate chamber to the oil storage chamber.
[0031] like Figure 1 and Figure 2As shown, the shock absorber 10 further includes a compression valve 16 and an end cover (not shown). The compression valve 16 is located at one end of the working cylinder 11, and the end cover is located at the other end of the working cylinder 11 and is sleeved on the piston rod of the piston 14. In the working chamber of the working cylinder 11, the piston 14 divides the working chamber into a lower oil chamber close to the compression valve 16 and an upper oil chamber away from the compression valve 16. It should be noted that the volumes of the upper oil chamber and the lower oil chamber will change with the movement of the piston. In addition, the up and down in the upper oil chamber and the lower oil chamber do not indicate the positional relationship between the two oil chambers, but are only used to distinguish the upper oil chamber from the lower oil chamber.
[0032] like Figure 1 As shown, in the compression stroke of the shock absorber 10, the piston 14 in the working cylinder 11 moves toward the compression valve 16 to compress the oil in the lower oil chamber, and a part of the oil in the lower oil chamber flows to the upper oil chamber through the one-way valve in the piston 14, and flows from the upper oil chamber to the middle chamber through the opening on the side wall of the working cylinder 11, and then flows from the middle chamber to the oil storage chamber through the opening on the side wall of the middle cylinder 12 and the damping valve 15. At the same time, a part of the oil in the lower oil chamber flows directly to the oil storage chamber through the one-way valve in the compression valve 16. Therefore, the damping valve 15 and the compression valve 16 jointly generate damping in this process, and the damping valve 15 can adjust the resistance of the oil from the middle chamber to the oil storage chamber by controlling the degree of valve opening, thereby adjusting the damping generated by it.
[0033] like Figure 2 As shown, in the restoring stroke (i.e., the extension stroke) of the shock absorber 10, the piston 14 in the working cylinder 11 moves away from the compression valve 16 to compress the oil in the upper oil chamber, and a portion of the oil in the upper oil chamber flows from the upper oil chamber to the middle chamber through the opening on the side wall of the working cylinder 11, and then flows from the middle chamber to the oil storage chamber through the opening on the side wall of the middle cylinder 12 and the damping valve 15. At the same time, a portion of the oil in the upper oil chamber flows to the lower oil chamber through the one-way valve in the piston 14, and a portion of the oil in the oil storage chamber flows to the lower oil chamber through the one-way valve in the compression valve 16. Therefore, the damping valve 15 generates damping in this process, and the damping valve 15 can adjust the resistance of the oil from the middle chamber to the oil storage chamber by controlling the degree of valve opening, thereby adjusting the damping generated by it.
[0034] Since only one damping valve is provided, the above shock absorber has the problem of a small damping adjustment range, and the damping valve adjustment precision is also low. On the other hand, as people's pursuit of vehicle driving quality continues to improve, vehicle manufacturers have put forward higher requirements for the damping adjustment range and adjustment precision of shock absorbers.
[0035] In this regard, an embodiment of the present disclosure provides a shock absorber. The shock absorber includes a first cylinder body, a second cylinder body and a third cylinder body; the second cylinder body is sleeved outside the first cylinder body and forms a first cavity between the first cylinder body and the second cylinder body with the first cylinder body; the third cylinder body is located inside the first cylinder body and forms a second cavity between the first cylinder body and the third cylinder body with the first cylinder body; the first cylinder body includes a first opening located on the side wall of the first cylinder body and penetrating the side wall, and the first opening connects the first cavity and the second cavity; the second cylinder body includes a second opening located on the side wall of the second cylinder body and penetrating the side wall; the shock absorber also includes a plurality of damping mechanisms, each of which includes a damping valve, a first opening and a second opening, and the damping valve includes a liquid inlet end and a liquid outlet end; in each damping mechanism, the liquid inlet end of the damping valve is connected to the first opening, and the liquid outlet end of the damping valve is connected to the second opening, and the damping valve is configured to adjust the resistance of the fluid flowing from the first opening to the second opening. Therefore, the shock absorber can adjust the damping of the shock absorber through multiple damping mechanisms, so as to at least increase the damping adjustment range or adjustment accuracy of the shock absorber.
[0036] The disclosed embodiment also provides a vehicle, comprising the shock absorber, so that the vehicle can have better driving quality, safety and comfort.
[0037] The shock absorber and the vehicle provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
[0038] Figure 3 Schematic diagram of a shock absorber provided by an embodiment of the present disclosure. Figure 3 As shown, the shock absorber 100 includes a first cylinder body 110, a second cylinder body 120 and a third cylinder body 130; the second cylinder body 120 is arranged outside the first cylinder body 110, and forms a first cavity 201 located between the first cylinder body 110 and the second cylinder body 120 with the first cylinder body 110; the third cylinder body 130 is located inside the first cylinder body 110, and forms a second cavity 202 located between the first cylinder body 110 and the third cylinder body 130 with the first cylinder body 110.
[0039] For example, the third cylinder 130 may be a working cylinder, the first cylinder 110 may be an intermediate cylinder, and the second cylinder 120 may be an oil storage cylinder; in this case, the first cavity 201 may be an oil storage cavity, and the second cavity 202 may be an intermediate cavity.
[0040] For example, the first cylinder 110, the second cylinder 120, and the third cylinder 130 may be coaxially disposed. The first cylinder 110, the second cylinder 120, and the third cylinder 130 may all be cylindrical in shape.
[0041] like Figure 3As shown, the first cylinder 110 includes a first opening 115 located on a side wall of the first cylinder 110 and penetrating the side wall. The first opening 115 connects the first cavity 201 and the second cavity 202, that is, the fluid in the first cavity 201 can flow to the second cavity 202 through the first opening 115, or the fluid in the second cavity 202 can flow to the first cavity 201 through the first opening 115; the second cylinder 120 includes a second opening 125 located on a side wall of the second cylinder 120 and penetrating the side wall.
[0042] like Figure 3 As shown, the shock absorber 100 also includes a plurality of damping mechanisms 140, each damping mechanism 140 includes a correspondingly arranged damping valve 145, a first opening 115 and a second opening 125; the damping valve 145 includes a liquid inlet end 145A and a liquid outlet end 145B; in each damping mechanism 140, the liquid inlet end 145A of the damping valve 145 is connected to the first opening 115, and the liquid outlet end 145B of the damping valve 145 is connected to the second opening 125, and the damping valve 145 is configured to adjust the resistance of the fluid flowing from the first opening 115 to the second opening 125, thereby adjusting the damping of the shock absorber.
[0043] In the shock absorber provided in the embodiment of the present disclosure, in each damping mechanism, the fluid flows from the first cavity through the first opening, the damping valve and the second opening to the second cavity, so the damping valve can adjust the resistance of the fluid from the first cavity to the second cavity, thereby adjusting the damping of the shock absorber. Since the shock absorber includes multiple damping mechanisms, the multiple damping mechanisms can adjust the damping of the shock absorber at the same time, thereby at least increasing the damping adjustment range or adjustment accuracy of the shock absorber.
[0044] In some examples, such as Figure 3 As shown, the third cylinder 130 has a third cavity 203 therein, and the third cylinder 130 includes a third opening 135 located on a side wall of the third cylinder 130 and penetrating the side wall, and the third opening 135 connects the third cavity 203 with the second cavity 202 .
[0045] For example, the third cavity 203 may be a working cavity, in which the piston 150 and the piston rod 160 may be disposed. The shock absorber may absorb vibration energy through the reciprocating motion of the piston in the working cavity, thereby suppressing vibration and accelerating the attenuation of vibration.
[0046] In some examples, such as Figure 3As shown, the second cavity 202 includes a plurality of sub-cavities 2020 arranged along the axial direction of the first cylinder 110, and a separation sealing assembly 175 is provided between two adjacent sub-cavities 2020 to isolate the two adjacent sub-cavities 2020; the third cylinder 130 includes a plurality of third openings 135 arranged in one-to-one correspondence with the plurality of sub-cavities 2020, and each third opening 135 connects the third cavity 203 with the corresponding sub-cavity 2020, that is, each sub-cavity 2020 is correspondingly provided with a third opening 135 to connect with the third cavity 203 through the third opening 135; the plurality of first openings 115 of the plurality of damping mechanisms 140 are respectively arranged in one-to-one correspondence with the plurality of sub-cavities 2020, and each damping mechanism 140 is configured to individually adjust the resistance of the fluid flowing from the sub-cavity 2020 to the first cavity 201. Thus, the fluid in the third cavity 203 can enter the multiple sub-cavities 2020 isolated from each other through the multiple first openings 135, and then enter the second cavity 202 through the multiple first openings 115 and multiple damping mechanisms 140. In this process, each damping mechanism 140 can individually adjust the resistance of the fluid flowing from the sub-cavity 2020 to the first cavity 201, thereby making the resistance adjustment accuracy in the shock absorber higher. In addition, by providing a separation sealing component, the second cavity can be divided into multiple sub-cavities, without the need to make multiple sub-cavities, simplifying the manufacturing process and assembly steps.
[0047] In some examples, such as Figure 3 As shown, the orthographic projection of each third opening 135 on the first cylinder body 110 falls within the orthographic projection of the corresponding sub-cavity 2020 on the first cylinder body 110. The orthographic projection of the partition sealing assembly 175 on the first cylinder body 110 is located between the orthographic projections of two adjacent sub-boxes 2020 on the first cylinder body 110.
[0048] In some examples, such as Figure 3 As shown, the shock absorber 100 further includes a piston rod 160, a piston 150, an end cover 190 and a compression valve 180; the piston rod 160 is located in the third cavity 203 and is configured to reciprocate along the axial direction of the third cavity 203; the piston 150 is located at one end of the piston rod 160 to separate the third cavity 203 into two working chambers, such as an upper working chamber and a lower working chamber; the end cover 190 is sleeved on the piston rod 160 and seals one end of the second cylinder 120 and the third cylinder 130; the compression valve 180 is located at one end of the third cylinder 130 away from the end cover 190. It should be noted that the volume of the upper oil chamber and the lower oil chamber will change with the movement of the piston. In addition, the upper and lower in the upper working chamber and the lower working chamber do not represent the positional relationship between the two chambers, but are only used to distinguish the upper working chamber from the lower working chamber.
[0049] In some examples, such as Figure 3As shown, the plurality of damping mechanisms 140 include a first damping mechanism 140A and a second damping mechanism 140B. The first damping mechanism 140A is located at an end of the first cylinder 110 close to the compression valve 180 , and the second damping mechanism 140B is located at a side of the first damping mechanism 140A away from the compression valve 180 .
[0050] like Figure 3 As shown, in the compression stroke of the shock absorber 100, the piston 150 in the third cavity 203 moves toward the compression valve 180 to compress the oil in the lower working chamber, and a part of the oil in the lower working chamber flows to the upper working chamber through the one-way valve in the piston 150, and flows from the upper working chamber to the sub-cavity 2020 corresponding to the second damping mechanism 140B through the third opening 135 on the side wall of the third cylinder 130, and then flows from the sub-cavity 2020 to the first cavity 201 through the second damping mechanism 140B, and a part of the oil in the lower working chamber flows from the lower working chamber to the sub-cavity 2020 corresponding to the first damping mechanism 140A through the third opening 135 on the side wall of the third cylinder 130, and then flows from the sub-cavity 2020 to the first cavity 201 through the first damping mechanism 140A. At the same time, a part of the oil in the lower working chamber flows directly to the first cavity through the one-way valve in the compression valve 180. Therefore, multiple damping mechanisms 140 and compression valves 180 jointly generate damping in this process, and the damping valve 145 in each damping mechanism 140 can adjust the resistance of oil from the second cavity to the first cavity by controlling the degree of valve opening, thereby adjusting the damping generated by each damping mechanism 140.
[0051] like Figure 3 As shown, in the recovery stroke (i.e., the extension stroke) of the shock absorber 100, the piston 150 in the third cavity 203 moves away from the compression valve 180 to compress the oil in the upper working chamber, and a portion of the oil in the upper working chamber flows to the lower working chamber through the one-way valve in the piston 150, and flows from the lower working chamber to the sub-cavity 2020 corresponding to the first damping mechanism 140A through the third opening 135 on the side wall of the third cylinder 130, and then flows from the sub-cavity 2020 to the first cavity 201 through the first damping mechanism 140A, and a portion of the oil in the upper working chamber flows from the upper working chamber to the sub-cavity 2020 corresponding to the second damping mechanism 140B through the third opening 135 on the side wall of the third cylinder 130, and then flows from the sub-cavity 2020 to the first cavity 201 through the second damping mechanism 140B. Therefore, multiple damping mechanisms 140 jointly generate damping in this process, and the damping valve 145 in each damping mechanism 140 can adjust the resistance of oil from the second cavity to the first cavity by controlling the degree of valve opening, thereby adjusting the damping generated by each damping mechanism 140.
[0052] Figure 4This is a schematic diagram of the structure of a sealing assembly provided by an embodiment of the present disclosure. Figure 4 As shown, the separation seal assembly 175 includes a seal 1751, a movable stop assembly 1752, a stop groove 1753 and a stopper 1754. The seal 1751 is located between the first cylinder 110 and the third cylinder 130; for example, the seal 1751 can be a sealing ring, and the seal 1751 disposed between the first cylinder 110 and the third cylinder 130 can be elastically deformed and pressed by the first cylinder 110 and the third cylinder 130, thereby having an excellent sealing effect.
[0053] like Figure 4 As shown, the movable limiting assembly 1752 is sleeved on the third cylinder body 130 and is movable in the axial direction of the third cylinder body 130; the limiting groove 1753 is located on the side of the third cylinder body 130 facing the first cylinder body 110; the movable limiting assembly 1752 is configured as a limiting seal 1751, and the blocking member 1754 is partially located in the limiting groove 1753 and is configured to block the movable limiting assembly 1752, thereby limiting the movable limiting assembly 1752.
[0054] In the separation sealing assembly, since the movable limiting assembly is movable in the axial direction of the third cylinder body, it can be relatively easily installed between the third cylinder body and the first cylinder body, and the seal is limited and compressed, so that the seal can be better sealed. On the other hand, since the seal, movable limiting assembly and blocking member of the separation sealing assembly are all movable and detachable, and only through the cooperation between the seal, movable limiting assembly, blocking member and limiting groove, a good sealing effect and fixing effect can be achieved, without the need for other fixing processes such as welding, so that it can be set in the middle position between the third cylinder body and the second cylinder body to separate the second cavity into a plurality of sub-cavities. In addition, as mentioned above, the separation sealing assembly is detachably connected to the first cylinder body and the third cylinder body, and no other fixing process is required, so it is convenient to install and maintain.
[0055] For example, Figure 4 As shown, the limiting groove 1753 may be located on the outer peripheral wall of the third cylinder body 130 , and the blocking member 1754 is partially located in the limiting groove 1753 and partially abuts against the movable limiting assembly 1752 to block the movable limiting assembly 1752 .
[0056] For example, Figure 4 As shown, the radial dimension of the blocking member 1754 in the third cylinder body 130 is smaller than the radial dimension of the movable limiting assembly 1752 in the third cylinder body 130 .
[0057] In some examples, such as Figure 4As shown, there may be a gap between the movable stopper assembly 1752 and the first cylinder body 110. When assembling the shock absorber, by setting the gap between the movable stopper assembly 1752 and the first cylinder body 110, the friction between the movable stopper assembly 1752 and the first cylinder body 110 can be reduced, which facilitates installation and maintenance. For example, the movable stopper assembly 1752 and the first cylinder body 110 may be clearance-fitted.
[0058] In some examples, the shape of the movable limit assembly on a reference plane perpendicular to the axial direction of the first cylinder body includes a ring (not shown in the figure). The shape of the blocking member on the reference plane is a ring with a notch (not shown in the figure). For example, the blocking member is a discontinuous structure. For example, the blocking member includes two ends facing each other, and a notch is formed between the two ends. For example, the blocking member is elastic, and the size of the notch can be adjusted to make it easier for the blocking member to be mounted on the third cylinder body. When the blocking member moves to the limit groove, it can be stuck in the limit groove (that is, partially located in the limit groove).
[0059] In some examples, such as Figure 4 As shown, the radial dimension of the portion of the third cylinder 130 where the limiting groove 1753 is provided is smaller than the radial dimension of the other portions of the third cylinder 130. In order to allow the blocking member 1754 to be partially located in the limiting groove 1753, the inner diameter dimension of the blocking member 1754 is smaller than the radial dimension of the other portions of the third cylinder 130. By increasing the notch dimension of the blocking member 1754, the inner diameter dimension of the blocking member 1754 can be made greater than or equal to the radial dimension of the other portions of the third cylinder 130, so that the blocking member 1754 can be sleeved on the third cylinder 130. At the same time, after the blocking member 1754 reaches the limiting groove 1753, by reducing the notch dimension of the blocking member 1754, the blocking member 1754 can be reliably limited in the limiting groove 1753. For example, the blocking member 1754 can be a retaining ring or a retaining spring.
[0060] In some examples, such as Figure 4 As shown, the movable stopper assembly 1752 includes a receiving portion near the third cylinder 130, the receiving portion is recessed into the body of the movable stopper assembly 1752, and is configured to accommodate the blocking member 1754. Thus, while the blocking member 1754 limits the movable stopper assembly 1752 in the axial direction of the third cylinder 130, the movable stopper assembly 1752 can also limit the blocking member 1754 in the radial direction of the third cylinder 130, thereby preventing the blocking member 1754 from jumping out.
[0061] In some examples, such as Figure 4As shown, the movable stopper assembly 1752 includes a first movable stopper 1752A and a second movable stopper 1752B spaced apart along the axial direction of the third cylinder 130, and the sealing member 1751 is located between the first movable stopper 1752A and the second movable stopper 1752B, so as to limit the sealing member 1751 in the axial direction of the third cylinder 130 through the first movable stopper 1752A and the second movable stopper 1752B. For example, the sealing member 1751 abuts between the first movable stopper 1752A and the second movable stopper 1752B.
[0062] In some examples, such as Figure 4 As shown, the limiting groove 1753 includes a first limiting groove 1753A and a second limiting groove 1753B which are spaced apart along the axial direction of the third cylinder body 130, and the blocking member 1754 includes a first blocking member 1754A and a second blocking member 1754B. The first blocking member 1754A is partially located in the first limiting groove 1753A and is configured to block the first movable limiting member 1752A, and the second blocking member 1754B is partially located in the second limiting groove 1753B and is configured to block the second movable limiting member 1752B.
[0063] In some examples, such as Figure 3 As shown, a first end sealing assembly 171 and a second end sealing assembly 172 are provided between the first cylinder body 110 and the third cylinder body 130. The first end sealing assembly 171 is located at the first end of the first cylinder body 110, and the second end sealing assembly 172 is located at the second end of the first cylinder body 110 to seal the second cavity 202; the third opening 135 is located between the first end sealing assembly 171 and the second end sealing assembly 172 in the axial direction of the first cylinder body 110.
[0064] It is worth noting that the first end sealing assembly and the second end sealing assembly can adopt the same structure as the partition sealing assembly, so as to facilitate installation and maintenance. Of course, the embodiments of the present disclosure include but are not limited to this, and the first end sealing assembly and the second end sealing assembly can also adopt a different structure from the partition sealing assembly.
[0065] In some examples, such as Figure 3 As shown, the orthographic projection of the partition seal assembly 175 on the third cylinder block 130 is located between the orthographic projection of the first end seal assembly 171 on the third cylinder block 130 and the orthographic projection of the second end seal assembly 172 on the third cylinder block 130 .
[0066] In some examples, such as Figure 3 As shown, a plurality of damping mechanisms 140 are arranged at intervals along the axial direction of the first cylinder 110 .
[0067] In some examples, such as Figure 3As shown, the damping valve 145 further includes a valve housing 145C, and in each damping mechanism 140 , the valve housing 145C is located at a side of the second cylinder 120 away from the first cylinder 110 . For example, the valve housing 145C is configured to accommodate a valve core of the damping valve 145 .
[0068] For example, the damping valve 145 may be a solenoid valve, and the degree of opening of the damping valve may be controlled by an electrical signal, thereby adjusting the damping of the shock absorber.
[0069] For example, the damping valve 145 can be fixed to the second cylinder 120 by welding the valve housing 145 to the outer wall of the second cylinder 120. Of course, the embodiments of the present disclosure include but are not limited to this, and the damping valve can also be fixed to the second cylinder in other ways.
[0070] In some examples, such as Figure 3 As shown, in each damping mechanism 140 , the orthographic projection of the first opening 115 on the second cylinder body 120 is located within the second opening 125 , so that the liquid inlet end 145A of the damping valve 145 can be communicated with the first opening 115 through the second opening 125 .
[0071] In some examples, such as Figure 3 As shown, in each damping mechanism 140 , the orthographic projection of the first opening 115 on the second cylinder body 120 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 , and the second opening 125 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 .
[0072] In some examples, in each damping mechanism, the center of the first opening and the center of the second opening are located on a straight line perpendicular to the axial direction of the first cylinder. Of course, the embodiments of the present disclosure include but are not limited to this.
[0073] In some examples, such as Figure 3 As shown, in each damping mechanism 140, the first opening 115 is connected to the liquid inlet end 145A of the damping valve 145 through a connecting member 147. The connecting member 147 is fixedly connected to the first cylinder body 110 on one hand, and is sealedly connected to the liquid inlet end 145A of the damping valve 145 on the other hand.
[0074] For example, Figure 3 As shown, the outer wall of the connecting member 147 is fixedly connected to the first cylinder body 110 , and the outer wall of the connecting member 147 is sealedly connected to the liquid inlet end 145A of the damping valve 145 .
[0075] For example, the connecting member 147 and the first cylinder body 110 may be an integral member. Of course, the embodiments of the present disclosure include but are not limited to this, and the connecting member 147 and the first cylinder body 110 may be separate members and then fixed together.
[0076] In some examples, such as Figure 3 As shown, in each damping mechanism 140 , the orthographic projection of the first opening 115 on the second cylinder body 120 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 , and the second opening 125 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 .
[0077] In some examples, such as Figure 3 As shown, the orthographic projection of the connecting member 147 on the second cylinder body 120 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 .
[0078] In some examples, such as Figure 3 As shown, in each damping mechanism 140 , the second opening 125 includes a middle area and a peripheral area, the liquid inlet end 145A of the damping valve 145 passes through the middle area and communicates with the first opening 115 , and the liquid outlet end 145B of the damping valve 145 communicates with the peripheral area of the second opening 125 .
[0079] Figure 5 This is a schematic diagram of the structure of another shock absorber provided by an embodiment of the present disclosure. Figure 5 As shown, the shock absorber 100 includes a first cylinder body 110, a second cylinder body 120 and a third cylinder body 130; the second cylinder body 120 is arranged outside the first cylinder body 110, and forms a first cavity 201 located between the first cylinder body 110 and the second cylinder body 120 with the first cylinder body 110; the third cylinder body 130 is located inside the first cylinder body 110, and forms a second cavity 202 located between the first cylinder body 110 and the third cylinder body 130 with the first cylinder body 110.
[0080] For example, the third cylinder 130 may be a working cylinder, the first cylinder 110 may be an intermediate cylinder, and the second cylinder 120 may be an oil storage cylinder; in this case, the first cavity 201 may be an oil storage cavity, and the second cavity 202 may be an intermediate cavity.
[0081] like Figure 5 As shown, the first cylinder 110 includes a first opening 115 located on a side wall of the first cylinder 110 and penetrating the side wall. The first opening 115 connects the first cavity 201 and the second cavity 202, that is, the fluid in the first cavity 201 can flow to the second cavity 202 through the first opening 115, or the fluid in the second cavity 202 can flow to the first cavity 201 through the first opening 115; the second cylinder 120 includes a second opening 125 located on a side wall of the second cylinder 120 and penetrating the side wall.
[0082] like Figure 5As shown, the shock absorber 100 also includes a plurality of damping mechanisms 140, each damping mechanism 140 includes a correspondingly arranged damping valve 145, a first opening 115 and a second opening 125; the damping valve 145 includes a liquid inlet end 145A and a liquid outlet end 145B; in each damping mechanism 140, the liquid inlet end 145A of the damping valve 145 is connected to the first opening 115, and the liquid outlet end 145B of the damping valve 145 is connected to the second opening 125, and the damping valve 145 is configured to adjust the resistance of the fluid flowing from the first opening 115 to the second opening 125, thereby adjusting the damping of the shock absorber.
[0083] like Figure 5 As shown, the third cylinder 130 has a third cavity 203 therein, and the third cylinder 130 includes a third opening 135 located on a side wall of the third cylinder 130 and penetrating the side wall, and the third opening 135 connects the third cavity 203 with the second cavity 202 .
[0084] For example, the third cavity 203 may be a working cavity, in which the piston 150 and the piston rod 160 may be disposed. The shock absorber may absorb vibration energy through the reciprocating motion of the piston in the working cavity, thereby suppressing vibration and accelerating the attenuation of vibration.
[0085] and Figure 3 The shock absorbers shown differ in that Figure 5 As shown, the second cavity 202 is a continuous cavity connected to the third opening 135, and each part of the second cavity 202 is connected to the third cavity 203 through the first opening 135. The plurality of damping mechanisms 140 are configured to jointly adjust the resistance of the fluid flowing from the second cavity 202 to the first cavity 201.
[0086] In the shock absorber provided in the embodiment of the present disclosure, in each damping mechanism, the fluid flows from the first cavity through the first opening, the damping valve and the second opening to the second cavity, so the damping valve can adjust the resistance of the fluid from the first cavity to the second cavity, thereby adjusting the damping of the shock absorber. In addition, since the multiple damping mechanisms jointly adjust the resistance of the fluid flowing from the second cavity to the first cavity, the shock absorber has a larger adjustable damping range.
[0087] In some examples, such as Figure 5 As shown, the shock absorber 100 also includes a piston rod 160, a piston 150, an end cover 190 and a compression valve 180; the piston rod 160 is located in the third cavity 203 and is configured to reciprocate along the axial direction of the third cavity 203; the piston 150 is located at one end of the piston rod 160 to separate the third cavity 203 into two working chambers, such as an upper working chamber and a lower working chamber; the end cover 190 is sleeved on the piston rod 160 and seals one end of the second cylinder body 120 and the third cylinder body 130; the compression valve 180 is located at one end of the third cylinder body 130 away from the end cover 190.
[0088] In some examples, such as Figure 5 As shown, the plurality of damping mechanisms 140 include a first damping mechanism 140A and a second damping mechanism 140B. The first damping mechanism 140A is located at an end of the first cylinder 110 close to the compression valve 180 , and the second damping mechanism 140B is located at a side of the first damping mechanism 140A away from the compression valve 180 .
[0089] In some examples, such as Figure 5 As shown, the plurality of damping mechanisms 140 include a first damping mechanism 140A and a second damping mechanism 140B, and the first opening 135 is located on a side of the second damping mechanism 140B away from the first damping mechanism 140A in the axial direction of the first cylinder 110 .
[0090] like Figure 5 As shown, in the compression stroke of the shock absorber 100, the piston 150 in the third cavity 203 moves toward the compression valve 180 to compress the oil in the lower working chamber, and a part of the oil in the lower working chamber flows to the upper working chamber through the one-way valve in the piston 150, and flows from the upper working chamber to the second cavity 202 through the third opening 135 on the side wall of the third cylinder 130, and then flows from the second cavity 202 to the first cavity 201 through the first damping mechanism 140A and the second damping mechanism 140B. At the same time, a part of the oil in the lower working chamber flows directly to the first cavity through the one-way valve in the compression valve 180. Therefore, multiple damping mechanisms 140 and compression valves 180 jointly generate damping in this process, and multiple damping mechanisms 140 jointly adjust the resistance of the fluid flowing from the second cavity 202 to the first cavity 201, and the damping valve 145 in each damping mechanism 140 can adjust the resistance of the oil from the second cavity to the first cavity by controlling the degree of valve opening, thereby adjusting the damping generated by each damping mechanism 140.
[0091] like Figure 5 As shown, in the restoring stroke (i.e., the extension stroke) of the shock absorber 100, the piston 150 in the third cavity 203 moves away from the compression valve 180 to compress the oil in the upper working chamber, and a portion of the oil in the upper working chamber flows from the upper working chamber to the second cavity 202 through the third opening 135 on the side wall of the third cylinder 130, and then flows from the second cavity 202 to the first cavity 201 through the first damping mechanism 140A and the second damping mechanism 140B. Therefore, the multiple damping mechanisms 140 jointly adjust the resistance of the fluid flowing from the second cavity 202 to the first cavity 201, and the damping valve 145 in each damping mechanism 140 can adjust the resistance of the oil from the second cavity to the first cavity by controlling the degree of valve opening, thereby adjusting the damping generated by each damping mechanism 140.
[0092] In some examples, such as Figure 5 As shown, a plurality of damping mechanisms 140 are arranged at intervals along the axial direction of the first cylinder body 110. Of course, the embodiments of the present disclosure include but are not limited to this, and a plurality of damping mechanisms may also be arranged at intervals along the circumference of the first cylinder body.
[0093] In some examples, such as Figure 5 As shown, a first end sealing assembly 171 and a second end sealing assembly 172 are provided between the first cylinder body 110 and the third cylinder body 130. The first end sealing assembly 171 is located at the first end of the first cylinder body 110, and the second end sealing assembly 172 is located at the second end of the first cylinder body 110 to seal the second cavity 202; the third opening 135 is located between the first end sealing assembly 171 and the second end sealing assembly 172 in the axial direction of the first cylinder body 110.
[0094] It is worth noting that the first end sealing assembly and the second end sealing assembly can be used in the same Figure 3 The same structure of the separation seal assembly in the shock absorber shown is convenient for installation and maintenance. Of course, the disclosed embodiments include but are not limited to this, and the first end seal assembly and the second end seal assembly may also adopt a structure different from the separation seal assembly.
[0095] In some examples, such as Figure 5 As shown, the damping valve 145 further includes a valve housing 145C, and in each damping mechanism 140 , the valve housing 145C is located at a side of the second cylinder 120 away from the first cylinder 110 . For example, the valve housing 145C is configured to accommodate a valve core of the damping valve 145 .
[0096] For example, the damping valve 145 may be a solenoid valve, and the degree of opening of the damping valve may be controlled by an electrical signal, thereby adjusting the damping of the shock absorber.
[0097] For example, the damping valve 145 can be fixed to the second cylinder 120 by welding the valve housing 145 to the outer wall of the second cylinder 120. Of course, the embodiments of the present disclosure include but are not limited to this, and the damping valve can also be fixed to the second cylinder in other ways.
[0098] In some examples, such as Figure 5 As shown, in each damping mechanism 140 , the orthographic projection of the first opening 115 on the second cylinder body 120 is located within the second opening 125 , so that the liquid inlet end 145A of the damping valve 145 can be communicated with the first opening 115 through the second opening 125 .
[0099] In some examples, such as Figure 3As shown, in each damping mechanism 140 , the orthographic projection of the first opening 115 on the second cylinder body 120 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 , and the second opening 125 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 .
[0100] In some examples, in each damping mechanism, the center of the first opening and the center of the second opening are located on a straight line perpendicular to the axial direction of the first cylinder. Of course, the embodiments of the present disclosure include but are not limited to this.
[0101] In some examples, such as Figure 3 As shown, in each damping mechanism 140, the first opening 115 is connected to the liquid inlet end 145A of the damping valve 145 through a connecting member 147. The connecting member 147 is fixedly connected to the first cylinder body 110 on one hand, and is sealedly connected to the liquid inlet end 145A of the damping valve 145 on the other hand.
[0102] For example, Figure 3 As shown, the outer wall of the connecting member 147 is fixedly connected to the first cylinder body 110 , and the outer wall of the connecting member 147 is sealedly connected to the liquid inlet end 145A of the damping valve 145 .
[0103] For example, the connecting member 147 and the first cylinder body 110 may be an integral member. Of course, the embodiments of the present disclosure include but are not limited to this, and the connecting member 147 and the first cylinder body 110 may be separate members and then fixed together.
[0104] In some examples, such as Figure 3 As shown, in each damping mechanism 140 , the orthographic projection of the first opening 115 on the second cylinder body 120 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 , and the second opening 125 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 .
[0105] In some examples, such as Figure 3 As shown, the orthographic projection of the connecting member 147 on the second cylinder body 120 is located within the orthographic projection of the valve housing 145 on the second cylinder body 120 .
[0106] In some examples, such as Figure 3 As shown, in each damping mechanism 140 , the second opening 125 includes a middle area and a peripheral area, the liquid inlet end 145A of the damping valve 145 passes through the middle area and communicates with the first opening 115 , and the liquid outlet end 145B of the damping valve 145 communicates with the peripheral area of the second opening 125 .
[0107] Figure 6 A schematic diagram of a vehicle provided by an embodiment of the present disclosure. Figure 6As shown, the vehicle 500 includes the above-mentioned shock absorber. Since the shock absorber can adjust the damping of the shock absorber through multiple damping mechanisms, the damping adjustment range or adjustment accuracy of the shock absorber can be at least increased. Therefore, the vehicle using the shock absorber can have better driving quality, safety and comfort.
[0108] There are a few points to note:
[0109] (1) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.
[0110] (2) In the absence of conflict, features in the same embodiment or in different embodiments of the present disclosure may be combined with each other.
[0111] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.
Claims
1. A shock absorber, comprising: First cylinder block; A second cylinder body is sleeved outside the first cylinder body and forms a first cavity between the first cylinder body and the second cylinder body with the first cylinder body; as well as A third cylinder body is located inside the first cylinder body and forms a second cavity between the first cylinder body and the third cylinder body together with the first cylinder body; The invention is characterized in that the first cylinder body includes a first opening located on a side wall of the first cylinder body and penetrating the side wall, and the first opening connects the first cavity and the second cavity; the second cylinder body includes a second opening located on a side wall of the second cylinder body and penetrating the side wall, The shock absorber further comprises a plurality of damping mechanisms, each of the damping mechanisms comprises a damping valve, a first opening and a second opening, the damping valve comprises a liquid inlet end and a liquid outlet end, In each of the damping mechanisms, the liquid inlet end of the damping valve is communicated with the first opening, the liquid outlet end of the damping valve is communicated with the second opening, and the damping valve is configured to adjust the resistance of the fluid flowing from the first opening to the second opening.
2. The shock absorber according to claim 1, characterized in that: The third cylinder has a third cavity therein, and the third cylinder includes a third opening located on a side wall of the third cylinder and penetrating the side wall, and the third opening connects the third cavity with the second cavity.
3. The shock absorber according to claim 2, characterized in that: The second cavity comprises a plurality of sub-cavities arranged along the axial direction of the first cylinder body, and a separation sealing assembly is arranged between two adjacent sub-cavities; The third cylinder body includes a plurality of third openings arranged in one-to-one correspondence with the plurality of sub-cavities, each of the third openings connects the third cavity with the corresponding sub-cavity, and the plurality of first openings of the plurality of damping mechanisms are respectively arranged in one-to-one correspondence with the plurality of sub-cavities, and each of the damping mechanisms is configured to individually adjust the resistance of the fluid flowing from the sub-cavity to the first cavity.
4. The shock absorber according to claim 3, characterized in that The partition sealing assembly comprises: a sealing member, located between the first cylinder body and the third cylinder body; A movable limiting assembly, which is sleeved on the third cylinder body and is movable in the axial direction of the third cylinder body; a limiting groove, located on a side of the third cylinder body facing the first cylinder body; and Blocking member, Wherein, the movable limiting assembly is configured to limit the sealing member, and the blocking member is partially located in the limiting groove and is configured to block the movable limiting assembly.
5. The vibration absorber according to claim 2, characterized in that: The second cavity is a continuous cavity connected to the third opening, each part of the second cavity is connected to the third cavity through the first opening, and the multiple damping mechanisms are configured to jointly adjust the resistance of the fluid flowing from the second cavity to the first cavity.
6. The shock absorber according to claim 5, characterized in that The plurality of damping mechanisms include a first damping mechanism and a second damping mechanism, and the third opening is located on a side of the second damping mechanism away from the first damping mechanism in the axial direction of the first cylinder.
7. The vibration absorber according to claim 5, characterized in that: The plurality of damping mechanisms are arranged at intervals along the circumferential direction of the first cylinder.
8. The vibration absorber according to any one of claims 2 to 6, characterized in that: A first end sealing assembly and a second end sealing assembly are provided between the first cylinder body and the third cylinder body, wherein the first end sealing assembly is located at a first end of the first cylinder body, and the second end sealing assembly is located at a second end of the first cylinder body, so as to seal the second cavity; The first opening is located between the first end seal assembly and the second end seal assembly in the axial direction of the first cylinder.
9. The vibration absorber according to any one of claims 1 to 6, characterized in that: The plurality of damping mechanisms are arranged at intervals along the axial direction of the first cylinder.
10. The vibration absorber according to any one of claims 1 to 6, characterized in that: The damping valve further comprises a valve housing. In each of the damping mechanisms, the valve housing is located on a side of the second cylinder body away from the first cylinder body.
11. The shock absorber according to any one of claims 1 to 6, characterized in that: In each of the damping mechanisms, an orthographic projection of the first opening on the second cylinder body is located within the second opening.
12. The vibration absorber according to any one of claims 1 to 6, characterized in that: In each of the damping mechanisms, the first opening is connected to the liquid inlet end of the damping valve through a connecting member.
13. The shock absorber according to claim 12, characterized in that In each of the damping mechanisms, the second opening includes a middle area and a peripheral area, the liquid inlet end of the damping valve communicates with the first opening through the middle area, and the liquid outlet end of the damping valve communicates with the peripheral area of the second opening.
14. The vibration absorber according to any one of claims 2 to 5, characterized in that: Also includes: a piston rod, located in the third cavity and configured to reciprocate along the axial direction of the third cavity; A piston, located at one end of the piston rod, to separate the third cavity into two working chambers; An end cover is sleeved on the piston rod and seals one end of the second cylinder body and the third cylinder body; A compression valve is located at an end of the third cylinder body away from the end cover.
15. The shock absorber according to claim 14, characterized in that The plurality of damping mechanisms include a first damping mechanism and a second damping mechanism. The first damping mechanism is located at an end of the first cylinder body close to the compression valve, and the second damping mechanism is located at a side of the first damping mechanism away from the compression valve.
16. A vehicle, characterized in that: Comprising a vibration absorber according to any one of claims 1-15.