Adjustment module for shock absorber, shock absorber, and vehicle

Abstract

An adjustment module (1000) for a shock absorber (2000), a shock absorber (2000), and a vehicle (3000). The adjustment module (1000) is separately in communication with a compression chamber and a rebound chamber of the shock absorber (2000). The adjustment module (1000) comprises an overflow valve seat (10), an overflow valve fixing sleeve (20), an overflow valve body (30), and an overflow elastic member (40). The overflow valve fixing sleeve (20) is located on one side of the overflow valve seat (10), the overflow valve body (30) is movably provided in the overflow valve fixing sleeve (20), and the overflow valve body (30) adjusts the flow of fluid between the compression chamber and the rebound chamber by getting close to and away from the overflow valve seat (10). The overflow elastic member (40) is provided between the overflow valve fixing sleeve (20) and the overflow valve body (30), and the overflow elastic member (40) provides an elastic force for pushing the overflow valve body (30) to the overflow valve seat (10).

Description

Adjustment module for a shock absorber, shock absorber and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the rights of the Chinese patent application No. 202311723603.X filed with the State Intellectual Property Office of China on December 12, 2023, entitled “ADJUSTMENT MODULE FOR SHOCK ABSORBER, SHOCK ABSORBER AND VEHICLE”, the Chinese patent application No. 202323387004.3 filed with the State Intellectual Property Office of China on December 12, 2023, entitled “Overflow seal for adjustment module, adjustment module, shock absorber and vehicle”, and the Chinese patent application No. 202323387004.3 filed with the State Intellectual Property Office of China on December 12, 2023, entitled “ADJUSTMENT MODULE, SHOCK ABSORBER, SHOCK ABSORBER AND VEHICLE”. The application claims priority from the Chinese patent application No. 202323395915.0, filed on December 12, 2023, entitled “Overflow valve body for regulating module, regulating module, shock absorber and vehicle”, and the Chinese patent application No. 202323389564.2, filed on December 12, 2023, entitled “Electromagnetic component, solenoid valve, regulating module, shock absorber and vehicle”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of vehicle technology, and in particular to an adjustment module for a shock absorber, a shock absorber, and a vehicle. Background Art

[0004] Vehicles are equipped with shock absorbers around their wheels to reduce jolting during driving. When the vehicle body and wheels move relative to each other, the piston inside the shock absorber moves up and down. The fluid in the shock absorber cavity repeatedly flows from one cavity to another through different pores, converting the vibration energy into heat energy in the fluid and gas, which is dissipated into the atmosphere. This allows the shock absorber to operate efficiently at a lower temperature range.

[0005] In the related art, the shock absorber has a compression chamber and a restoring chamber, and an overflow valve is generally connected between the compression chamber and the restoring chamber. The overflow valve includes an overflow valve body and an overflow valve seat. The overflow valve controls the flow of liquid between the compression chamber and the restoring chamber by controlling the movement of the overflow valve body relative to the overflow valve seat. However, when the overflow valve body moves toward the direction close to the overflow valve seat, the overflow valve body has the problem of slow reset. At the same time, when the overflow valve body moves toward the direction away from the overflow valve seat, the overflow valve body has the problem of unstable movement and unstable fluid flow.

[0006] Public content

[0007] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present application is to provide an adjustment module for a shock absorber, wherein the overflow valve body of the adjustment module moves stably and resets quickly.

[0008] The present application further proposes a vibration absorber.

[0009] The present application further proposes a vehicle.

[0010] According to the adjustment module for the shock absorber of the present application, the adjustment module is respectively connected to the compression chamber and the restoration chamber of the shock absorber, and the adjustment module includes: an overflow valve seat; a overflow valve fixing sleeve, the overflow valve fixing sleeve is located on one side of the overflow valve seat; and an overflow valve body, the overflow valve body is movably arranged on the overflow valve fixing sleeve, and the overflow valve body adjusts the fluid flow between the compression chamber and the restoration chamber by approaching and moving away from the overflow valve seat; an overflow elastic member, the overflow elastic member is arranged between the overflow valve fixing sleeve and the overflow valve body, and the overflow elastic member provides an elastic force to push the overflow valve body toward the overflow valve seat.

[0011] Therefore, according to the adjustment module for the shock absorber according to the embodiment of the present application, by arranging the overflow elastic member between the overflow valve fixing sleeve and the overflow valve body, the movement of the overflow valve body can be made stable, and the effect of rapid reset of the overflow valve body can be achieved.

[0012] In some examples of the present application, the overflow elastic member is a spring, the overflow elastic member is arranged in the overflow valve fixing sleeve, one end of the overflow elastic member stops at the overflow valve fixing sleeve and the other end stops at the overflow valve body.

[0013] In some examples of the present application, an outer diameter of an end of the overflow elastic member that abuts against the overflow valve fixing sleeve is larger than an outer diameter of an end of the overflow elastic member that abuts against the overflow valve body.

[0014] In some examples of the present application, the regulating module also includes: a valve body, the overflow valve fixing sleeve is installed in the valve body, and at least a portion of the overflow valve seat is installed in the valve body; and a control valve, which controls the movement of the overflow valve body to approach and move away from the overflow valve seat.

[0015] In some examples of the present application, the overflow valve seat is provided with at least one first communicating hole and at least one second communicating hole, one of the compression chamber and the restoration chamber is connected to the first communicating hole, and the other of the compression chamber and the restoration chamber is connected to the second communicating hole; the regulating module is constructed with a first flow path and a second flow path, and the flow rate of the first flow path and the flow rate of the second flow path are different; the regulating module controls the first communicating hole and the second communicating hole to selectively pass through at least one of the first flow path and the second flow path.

[0016] In some examples of the present application, the first communicating hole is provided at the center of the overflow valve seat, and there are multiple second communicating holes, which are arranged at intervals along the circumference of the overflow valve seat and surround the first communicating hole.

[0017] In some examples of the present application, the adjustment module further includes: a relief valve distance adjustment ring, which is disposed in the valve body and supported between the relief valve seat and the relief valve fixing sleeve.

[0018] In some examples of the present application, the overflow valve seat is threadedly engaged with the valve body, and the overflow valve seat adjusts the deformation of the overflow valve from the adjusting ring by adjusting the degree of tightening with the valve body to adjust the distance from the overflow valve fixing sleeve and the overflow valve body to the overflow valve seat.

[0019] In some examples of the present application, the height of the overflow valve from the adjustment ring along the axial direction thereof is 2.5 mm to 5 mm.

[0020] In some examples of the present application, the cross-section of the overflow valve distance adjusting ring parallel to its axial direction is configured as an arc or a straight line, and the distance between one end of the overflow valve distance adjusting ring adjacent to the overflow valve seat and the central axis of the overflow valve distance adjusting ring is greater than the distance between one end of the overflow valve distance adjusting ring adjacent to the overflow valve fixing sleeve and the central axis of the overflow valve distance adjusting ring.

[0021] In some examples of the present application, a first abutment slope is constructed at one end of the relief valve distance adjustment ring facing the relief valve fixing sleeve, and the distance between the first abutment slope and the central axis of the relief valve distance adjustment ring gradually increases along the direction from the relief valve seat to the relief valve fixing sleeve; a second abutment slope is constructed at one end of the relief valve fixing sleeve facing the relief valve distance adjustment ring, and the distance between the second abutment slope and the central axis of the relief valve fixing sleeve gradually increases along the direction from the relief valve seat to the relief valve fixing sleeve; the first abutment slope cooperates with the second abutment slope.

[0022] In some examples of the present application, the adjustment module for the shock absorber further includes: an overflow seal, which is respectively sealed with the overflow valve fixing sleeve and the overflow valve body of the adjustment module, and the overflow seal is configured with a deformation groove on the side facing the overflow chamber of the adjustment module, and the deformation groove is connected to the overflow chamber; the overflow seal is configured so that the pressure exerted on the overflow seal by the fluid in the overflow chamber flowing into the deformation groove causes the overflow seal to open toward at least one of the overflow valve fixing sleeve and the overflow valve body.

[0023] In some examples of the present application, the overflow seal is constructed in an annular shape and is located between the outer circumferential surface of the overflow valve body and the inner circumferential surface of the overflow valve fixing sleeve, the deformation groove extends along the circumference of the overflow seal, and the width of the deformation groove on the side adjacent to the overflow chamber is greater than the width of the deformation groove on the side away from the overflow chamber.

[0024] In some examples of the present application, the distance between the outer circumference and the inner circumference of the overflow seal adjacent to the overflow cavity is greater than the distance between the outer circumference and the inner circumference of the overflow seal away from the overflow cavity.

[0025] In some examples of the present application, it includes: an outer sealing ring, which abuts against the overflow valve fixing sleeve; an inner sealing ring, which abuts against the overflow valve body; wherein the deformation groove is formed between the outer sealing ring and the inner sealing ring.

[0026] In some examples of the present application, the cross-section of the inner sealing ring is set parallel to the central axis of the overflow seal; the cross-section of the outer sealing ring is set obliquely relative to the central axis of the overflow seal, and the distance between the outer sealing ring and the central axis of the overflow seal gradually increases in the direction toward the overflow chamber.

[0027] In some examples of the present application, a cross section of the inner sealing ring parallel to the central axis of the overflow seal is linear or arc-shaped; a cross section of the outer sealing ring parallel to the central axis of the overflow seal is linear or arc-shaped.

[0028] In some examples of the present application, it also includes: a bottom sealing ring, the outer periphery of the bottom sealing ring is connected to the side of the outer sealing ring facing away from the overflow chamber, and the inner periphery of the bottom sealing ring is connected to the side of the inner sealing ring facing away from the overflow chamber.

[0029] In some examples of the present application, a side surface of the bottom sealing ring facing away from the outer sealing ring and the inner sealing ring is configured as a plane perpendicular to a central axis of the overflow seal.

[0030] In some examples of the present application, a side surface of the bottom sealing ring forming a groove bottom of the deformation groove is configured as a plane perpendicular to a central axis of the overflow seal.

[0031] In some examples of the present application, the overflow valve body of the adjustment module for the shock absorber is provided with: a first overflow channel, which is connected to the overflow chamber of the adjustment module and allows fluid to flow into the overflow chamber; and a second overflow channel, which is connected to the overflow chamber and allows fluid to flow out of the overflow chamber; wherein the minimum cross-sectional area of ​​the second overflow channel is larger than the minimum cross-sectional area of ​​the first overflow channel.

[0032] In some examples of the present application, the overflow valve body includes: a valve shoulder, the first overflow channel is arranged on the valve shoulder, and the overflow chamber is located on one side of the thickness direction of the valve shoulder; and a guide column, the guide column is arranged on the one side of the thickness direction of the valve shoulder, and the second overflow channel is arranged on the guide column.

[0033] In some examples of the present application, a central axis of the guide post coincides with a central axis of the valve shoulder.

[0034] In some examples of the present application, the second overflow channel includes: at least one radial segment, which extends in a direction perpendicular to the axial direction of the guide column, and one end of the radial segment is connected to the overflow chamber; and an axial segment, which extends in the axial direction of the guide column, and one end of the axial segment is connected to the other end of the radial segment, and the other end of the axial segment passes through the end of the guide column facing away from the valve shoulder.

[0035] In some examples of the present application, a ratio of a minimum cross-sectional area of ​​the first overflow channel to a minimum cross-sectional area of ​​the axial segment is 1:10 to 1:4.

[0036] In some examples of the present application, the sum of the minimum cross-sectional areas of all the radial segments is greater than or equal to the minimum cross-sectional area of ​​the axial segment.

[0037] In some examples of the present application, there are a plurality of radial segments, which are spaced apart along the circumference of the guide post.

[0038] In some examples of the present application, there are two radial segments and the central axes thereof coincide with each other.

[0039] In some examples of the present application, the axial segment includes: a bottom segment, one end of which is connected to the other end of the radial segment; and a top segment, one end of which is connected to the other end of the bottom segment, and the other end of the top segment passes through the end of the guide column facing away from the valve shoulder; wherein the cross-sectional area of ​​the bottom segment is smaller than the cross-sectional area of ​​the top segment.

[0040] In some examples of the present application, the first overflow channel includes: a middle section; a first gradually expanding section, the first gradually expanding section is connected to the middle section and is located on the side of the middle section facing away from the overflow chamber, and the cross-sectional area of ​​the end of the first gradually expanding section adjacent to the middle section is smaller than the cross-sectional area of ​​the end of the first gradually expanding section away from the middle section; and a second gradually expanding section, the second gradually expanding section is connected to the middle section and is located on the side of the middle section facing the overflow chamber, and the cross-sectional area of ​​the second gradually expanding section gradually increases in the direction away from the middle section.

[0041] In some examples of the present application, the overflow valve body further includes: a valve ring, which is provided on the other side of the valve shoulder in the thickness direction and extends in a ring shape along the outer periphery of the valve shoulder.

[0042] In some examples of the present application, an outer circumferential surface of the valve ring is provided with an overflow sealing groove for assembling an overflow seal.

[0043] In some examples of the present application, the overflow sealing groove has a first groove wall and a second groove wall, the first groove wall is located on the side of the overflow sealing groove facing the guide column, and the second groove wall is located on the side of the overflow sealing groove facing away from the guide column; wherein, in a direction perpendicular to the axial direction of the overflow valve body, the second groove wall is higher than the first groove wall.

[0044] In some examples of the present application, a sealing ring platform is configured at an end of the guide column away from the valve shoulder for cooperating with the pilot valve plug of the regulating module. The sealing ring platform is arranged around the second overflow channel, and a distance between an inner circumferential surface of an end of the sealing ring platform adjacent to the valve shoulder and a central axis of the sealing ring platform is smaller than a distance between an inner circumferential surface of an end of the sealing ring platform away from the valve shoulder and the central axis of the sealing ring platform.

[0045] In some examples of the present application, the distance between the outer circumferential surface of the sealing ring platform at one end adjacent to the valve shoulder and the central axis of the sealing ring platform is greater than the distance between the outer circumferential surface of the sealing ring platform at one end away from the valve shoulder and the central axis of the sealing ring platform.

[0046] In some examples of the present application, it also includes: an electromagnetic assembly, the electromagnetic assembly including: an insulating bracket, the outer wall of the insulating bracket is provided with a coil groove; and a magnetic cover, the magnetic cover is installed on the insulating bracket and covers the coil groove; wherein, one end of the insulating bracket is constructed with at least one anti-rotation positioning column, the magnetic cover is provided with at least one anti-rotation positioning hole, the anti-rotation positioning column passes through the anti-rotation positioning hole; the part of the anti-rotation positioning column extending out of the anti-rotation positioning hole is constructed with an axial positioning portion, and the magnetic cover is stopped by the axial positioning portion.

[0047] In some examples of the present application, the axial positioning portion is formed integrally with the anti-rotation positioning column.

[0048] In some examples of the present application, there are multiple anti-rotation positioning columns and they are spaced apart circumferentially along the insulating bracket, there are multiple anti-rotation positioning holes and they are spaced apart circumferentially along the magnetic cover, and the multiple anti-rotation positioning columns pass through the multiple anti-rotation positioning holes one by one.

[0049] In some examples of the present application, the plurality of anti-rotation positioning posts are arranged at equal intervals along the circumference of the insulating bracket, and the plurality of anti-rotation positioning holes are arranged at equal intervals along the circumference of the magnetic conductive cover.

[0050] In some examples of the present application, the cross-section of the anti-rotation positioning column and the cross-section of the anti-rotation positioning hole are circular and adapted to each other.

[0051] In some examples of the present application, the invention includes: a control valve assembly, the control valve assembly includes the electromagnetic assembly, and the control valve assembly further includes: a valve body, the insulating bracket and the magnetic cover are installed on the valve body; a coil, the coil is wound around the coil slot of the insulating bracket and is covered by the magnetic cover; a valve core cover, the valve core cover is installed on the insulating bracket; a valve core, the valve core is movably installed on the valve core cover; a guide rod, the guide rod is connected to the valve core; and a pilot valve plug, the pilot valve plug is connected to the guide rod; wherein, when the coil is energized, the valve core generates magnetism and attracts the valve body.

[0052] In some examples of the present application, the invention further includes: a magnetic isolation ring, which is arranged around the valve core and is located between the valve core cover and the valve body.

[0053] In some examples of the present application, one of the magnetic isolation ring and the valve core cover is provided with an assembly inner ring, and the other is provided with an assembly outer ring, and the assembly outer ring is sleeved on the assembly inner ring and has an interference fit with the assembly inner ring.

[0054] In some examples of the present application, a support ring groove is provided on the side of the valve body facing the control valve, and a support ring platform is constructed on the side of the magnetic isolation ring facing the valve body. The support ring platform is fitted in the support ring groove and has an interference fit with the support ring groove.

[0055] In some examples of the present application, the inner wall surface of the valve core cover is configured with a guide rod groove, and the guide rod is movably engaged with the guide rod groove.

[0056] In some examples of the present application, a first guide sleeve is provided in the guide rod groove, and the guide rod is movably engaged with the first guide sleeve.

[0057] In some examples of the present application, at least one first flow groove is provided on the outer side surface of the first guide sleeve that cooperates with the valve core cover, and both ends of the first flow groove respectively pass through the axial ends of the first guide sleeve.

[0058] In some examples of the present application, there are multiple first flow grooves and they are spaced apart along the circumference of the first guide sleeve.

[0059] In some examples of the present application, the valve body is configured with a guide rod hole, and the guide rod is movably fitted into the guide rod hole.

[0060] In some examples of the present application, a second guide sleeve is provided in the guide rod hole, and the guide rod is movably engaged with the second guide sleeve.

[0061] In some examples of the present application, at least one second flow groove is provided on the outer side surface of the second guide sleeve that cooperates with the valve body, and both ends of the second flow groove respectively pass through the axial ends of the second guide sleeve.

[0062] In some examples of the present application, there are multiple second flow grooves and they are spaced apart along the circumference of the second guide sleeve.

[0063] In some examples of the present application, it also includes: a first elastic member, an inner wall surface of the valve core cover facing the valve core is configured with a first recessed groove, an end of the valve core facing the valve core cover is configured with a second recessed groove, and both ends of the first elastic member are respectively matched with the first recessed groove and the second recessed groove; and a second elastic member, an end of the valve core facing the valve body is configured with a third recessed groove, one end of the second elastic member is matched with the third recessed groove and the other end stops at the second guide sleeve; wherein, the first elastic member and the second elastic member maintain the position of the valve core stable by jointly applying elastic force to the valve core.

[0064] In some examples of the present application, the valve core is provided with at least one through hole, and two ends of the through hole respectively pass through two ends of the valve core.

[0065] In some examples of the present application, a limiting structure is constructed on one side of the valve body facing the valve core; two extreme positions of the valve core in its moving direction are respectively defined by the limiting structure and the valve core cover.

[0066] In some examples of the present application, the pilot valve plug is configured with a mounting ring, which is sleeved on the guide rod and has a clearance fit with the guide rod.

[0067] In some examples of the present application, the solenoid valve assembly is a solenoid valve assembly.

[0068] The shock absorber according to the present application includes: at least one adjustment module for the shock absorber as described above; and a cylinder, wherein the compression chamber and the recovery chamber are defined in the cylinder.

[0069] In some examples of the present application, the cylinder includes an outer cylinder and an inner cylinder disposed in the outer cylinder, and the adjustment module is disposed outside the outer cylinder.

[0070] In some examples of the present application, there are at least two regulating modules, wherein one regulating module regulates the fluid flow from the compression chamber to the recovery chamber, and the other regulating module regulates the fluid flow from the recovery chamber to the compression chamber.

[0071] The vehicle according to the present application includes the shock absorber.

[0072] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0074] FIG1 is a cross-sectional view of an adjustment module according to an embodiment of the present application;

[0075] FIG2 is a cross-sectional view of the adjustment module in the first state according to an embodiment of the present application;

[0076] FIG3 is a cross-sectional view of the adjustment module in the second state according to an embodiment of the present application;

[0077] FIG4 is a cross-sectional view of the adjustment module in the third state according to an embodiment of the present application;

[0078] FIG5 is a cross-sectional view of the adjustment module in a fourth state according to an embodiment of the present application;

[0079] Figure 6 is a schematic structural diagram of the overflow valve seat;

[0080] FIG7 is a cross-sectional view of the relief valve seat;

[0081] Figure 8 is a schematic structural diagram of the relief valve fixing sleeve;

[0082] Figure 9 is a schematic structural diagram of the relief valve fixing sleeve;

[0083] Figure 10 is a schematic structural diagram of the relief valve body;

[0084] Figure 11 is a cross-sectional view of the relief valve body;

[0085] FIG12 is a schematic structural diagram of an overflow elastic member;

[0086] Figure 13 is a schematic structural diagram of the valve body;

[0087] Figure 14 is a cross-sectional view of the valve body;

[0088] Figure 15 is a schematic structural diagram of the pilot valve plug;

[0089] FIG16 is a cross-sectional view of the pilot valve plug;

[0090] Figure 17 is a schematic structural diagram of an overflow seal;

[0091] FIG18 is a cross-sectional view of an overflow seal;

[0092] FIG19 is a schematic structural diagram of a first electromagnetic assembly, in which the magnetic conductive cover is omitted;

[0093] FIG20 is a cross-sectional view of a first electromagnetic assembly;

[0094] FIG21 is a schematic structural diagram of a first magnetic conductive cover;

[0095] FIG22 is a schematic structural diagram of a second electromagnetic assembly;

[0096] FIG23 is a schematic diagram of the structure of a second electromagnetic assembly, in which the magnetic conductive cover is omitted;

[0097] FIG24 is a schematic structural diagram of a second magnetic conductive cover;

[0098] Figure 25 is a cross-sectional view of the valve core cover;

[0099] Figure 26 is a schematic structural diagram of the valve core;

[0100] Figure 27 is a cross-sectional view of the valve core;

[0101] FIG28 is a schematic structural diagram of a magnetic isolation ring;

[0102] FIG29 is a cross-sectional view of a magnetic isolation ring;

[0103] Figure 30 is a schematic structural diagram of the first guide sleeve;

[0104] Figure 31 is a schematic block diagram of a vehicle according to an embodiment of the present application.

[0105] Reference Signs: 3000, vehicle; 2000, shock absorber; 1000, adjustment module; 10, relief valve seat; 11, first communicating hole; 12, second communicating hole; 13, assembly ring; 14, first sealing groove; 15, first sealing ring; 20, relief valve fixing sleeve; 21, guide hole; 22, guide ring platform; 23, guide ring groove; 24, guide branch groove; 25, second abutting inclined surface; 30, relief valve body; 31, guide post; 311, sealing ring platform; 32, relief sealing groove; 321, first groove wall; 322, second groove wall; 33, valve shoulder; 34, valve ring; 40, relief elastic member; 50. Valve body; 51. Support boss; 52. Support ring groove; 53. Guide rod hole; 54. Second guide sleeve; 55. Limiting structure; 56. Second sealing groove; 57. Second sealing ring; 58. Stop ring; 60. Control valve; 70. First flow path; 80. Second flow path; 81. Overflow chamber; 82. Pilot chamber; 83. First overflow channel; 8311. First gradually expanding section; 8312. Second gradually expanding section; 8313. Intermediate section; 84. Second overflow channel; 841. Radial section; 842. Axial section; 8421. Bottom section; 8422. Top section; 85. Third overflow channel; 90. Pilot valve plug; 91. Valve disc; 92. Valve head; 93. Guide ring; 94. Mounting ring; 100, overflow seal; 101, deformation groove; 102, inner sealing ring; 103, outer sealing ring; 104, bottom sealing ring; 110, overflow valve distance adjustment ring; 111, first abutting inclined surface; 120, electromagnetic assembly; 121, insulating bracket; 1211, coil groove; 1212, wire post; 1213, anti-rotation positioning post; 1214, axial positioning portion; 122, coil; 123, magnetic cover; 1231, anti-rotation positioning hole; 1232, assembly inner ring; 1233, avoidance hole; 130, valve core cover; 131, guide rod groove; 132, first guide sleeve; 133, first flow groove; 134, first sink groove; 140, valve core; 141, second sink groove; 142, third sink groove; 143, through hole; 144, first elastic member; 145, second elastic member; 150. Guide rod; 160. Magnetic isolation ring; 161. Assembly outer ring; 162. Support ring platform; 170. Cylinder; 171. Inner cylinder; 172. Outer cylinder. DETAILED DESCRIPTION

[0106] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0107] The following describes an adjustment module 1000 for a shock absorber according to an embodiment of the first aspect of the present application with reference to Figures 1 to 30. The shock absorber has a compression chamber and a recovery chamber. The adjustment module 1000 is in communication with the compression chamber and the recovery chamber of the shock absorber, respectively. For example, a fluid can flow from the compression chamber into the recovery chamber through the adjustment module 1000. For another example, a fluid can flow from the recovery chamber into the compression chamber through the adjustment module 1000. The adjustment module 1000 can be used to adjust the flow rate of a fluid, which can be oil, flowing between the compression chamber and the recovery chamber.

[0108] As shown in FIG1 , a shock absorber adjustment module 1000 according to an embodiment of the first aspect of the present application includes a relief valve seat 10, a relief valve retaining sleeve 20, and a relief valve body 30. The relief valve retaining sleeve 20 is located on one side of the relief valve seat 10, for example, above the relief valve seat 10. The relief valve body 30 is movably disposed within the relief valve retaining sleeve 20. The relief valve body 30 adjusts the fluid flow between the compression chamber and the return chamber by moving closer to and further away from the relief valve seat 10. Specifically, the relief valve body 30 is disposed within the relief valve retaining sleeve 20 and is movable within the relief valve retaining sleeve 20. The movement direction can be up and down. When the relief valve body 30 moves upward, it moves away from the relief valve seat 10, so that the fluid can flow between the relief valve body 30 and the relief valve seat 10 in a first flow mode. When the overflow valve body 30 moves downward, the overflow valve body 30 approaches the overflow valve seat 10 until the overflow valve body 30 contacts the overflow valve seat 10, so that the first flow mode is closed, and the oil can flow between the overflow valve fixing sleeve 20, the overflow valve body 30 and the overflow valve seat 10 according to the second flow mode. The fluid flow rate of the second flow mode is less than the fluid flow rate of the first flow mode mentioned above. Of course, the first flow mode and the second flow mode can operate at the same time. Based on this, the adjustment module 1000 controls the fluid in the compression chamber and the recovery chamber by controlling the fluid flow rate, so that the corresponding "softness" and "hardness" of the shock absorber during the vibration reduction process can be controlled, thereby improving the vehicle's passability and comfort.

[0109] According to some embodiments of the present application, as shown in FIG1 , the adjustment module 1000 includes an overflow elastic member 40. The overflow elastic member 40 is disposed between the overflow valve fixing sleeve 20 and the overflow valve body 30. The overflow elastic member 40 provides an elastic force that pushes the overflow valve body 30 toward the overflow valve seat 10. It is understood that under the action of the fluid, the overflow valve body 30 moves upward and gradually away from the overflow valve seat 10. At this time, the overflow elastic member 40 is in a pressurized and continuously compressed state. The elastic force generated by the overflow elastic member 40 gradually increases and acts on the overflow valve body 30. This allows the overflow valve body 30 to move stably, thereby preventing the fluid flow between the overflow valve body 30 and the overflow valve seat 10 from being too large or too small, ensuring the stability of the fluid flow, and further ensuring the smooth vibration reduction of the shock absorber. Under the control of the adjustment module 1000, the overflow valve body 30 moves downward and gradually approaches the overflow valve seat 10. At this time, the overflow elastic member 40 continues to release the elastic force generated during compression, which allows the overflow valve body 30 to move toward the overflow valve seat 10 more quickly, thereby enabling the adjustment module 1000 to switch from the first flow mode to the second flow mode, achieving rapid reset and switching. Moreover, since the overflow elastic member 40 is arranged between the overflow valve fixing sleeve 20 and the overflow valve body 30, under normal circumstances, the overflow elastic member 40 will cause the overflow valve body 30 to remain in a relatively stable position relative to the overflow valve seat 10, thereby further improving the adjustment ability of the adjustment module 1000. Therefore, according to the adjustment module 1000 for a shock absorber of this embodiment of the first aspect of the present application, by arranging the overflow elastic member 40 between the overflow valve fixing sleeve 20 and the overflow valve body 30, the overflow valve body 30 can be stably moved and the overflow valve body 30 can be quickly reset.

[0110] According to a specific embodiment of the present application, as shown in Figures 1 and 12, the overflow elastic member 40 is a spring. The overflow elastic member 40 is disposed within the overflow valve fixing sleeve 20. One end of the overflow elastic member 40 abuts against the overflow valve fixing sleeve 20, and the other end of the overflow elastic member 40 abuts against the overflow valve body 30. Specifically, the upper end of the spring abuts against the top of the overflow valve fixing sleeve 20, and the lower end of the spring abuts against the top of the overflow valve body 30. In this way, the elastic force generated by the spring can directly act on the overflow valve body 30, pushing the overflow valve body 30 to move in the vertical direction. The overflow elastic member 40 configured in this way is simple to arrange and directly acts on the overflow valve body 30 in the vertical direction, resulting in a good effect.

[0111] As shown in Figures 1 and 12 , the outer diameter of the overflow elastic member 40 at the end that abuts the overflow valve retaining sleeve 20 is larger than the outer diameter of the end that abuts the overflow valve body 30. For example, the outer diameter of the overflow elastic member 40 gradually decreases from the overflow valve retaining sleeve 20 to the overflow valve body 30. The overflow elastic member 40 may be a tower spring with an outer diameter that gradually decreases from top to bottom. This configuration of the overflow elastic member 40, with the larger outer diameter end abutting the overflow valve retaining sleeve 20 and the smaller outer diameter end abutting the overflow valve body 30, can reduce the space occupied by the overflow elastic member 40 when compressed, facilitating the miniaturization of the adjustment module 1000. Furthermore, it can ensure the reliable abutment between the overflow elastic member 40 and the overflow valve retaining sleeve 20, thereby ensuring the operational reliability of the adjustment module 1000. For another example, the overflow elastic member 40 may be a member with a larger outer diameter at one end and a smaller outer diameter at the other, with the diameters being equal in the middle.

[0112] According to some embodiments of the present application, referring to Figures 1-30, a regulating module 1000 includes an overflow seal 100. An overflow chamber 81 is formed between the overflow valve retaining sleeve 20 and the overflow valve body 30. The overflow seal 100 is disposed between the overflow valve retaining sleeve 20 and the overflow valve body 30, i.e., the overflow seal 100 is disposed between the overflow valve retaining sleeve 20 and the overflow valve body 30. The overflow seal 100 provides a stop seal with the overflow valve retaining sleeve 20 and the overflow valve body 30, respectively. A deformation groove 101 is formed on the side of the overflow seal 100 facing the overflow chamber 81, and the deformation groove 101 communicates with the overflow chamber 81. The overflow seal 100 is configured such that when fluid within the overflow chamber 81 flows into the deformation groove 101, the pressure exerted on the overflow seal 100 causes the overflow seal 100 to expand toward at least one of the overflow valve retaining sleeve 20 and the overflow valve body 30.

[0113] It is understood that the overflow seal 100 is disposed between the overflow valve fixing sleeve 20 and the overflow valve body 30, and can function as a seal therebetween, thereby ensuring the sealing of the overflow chamber 81 and facilitating rapid pressure buildup in the overflow chamber 81. Furthermore, the overflow seal 100 is further configured with a deformation groove 101 in communication with the overflow chamber 81. After the fluid in the overflow chamber 81 flows from top to bottom into the deformation groove 101, the deformation groove 101 deforms under the action of the fluid pressure, thereby causing at least one side of the deformation groove 101 to be in close contact with the corresponding overflow valve fixing sleeve 20 and the overflow valve body 30. This allows for a better sealing effect, the ability to withstand greater pressure, faster pressure buildup, and minimal leakage. Furthermore, since the relief valve body 30 and the sidewall of the relief valve retaining sleeve 20 are sealed by the side relief seal 100, the clearance between the relief valve body 30 and the relief valve retaining sleeve 20 can be designed to be larger, thereby relaxing the machining tolerances of the parts, reducing the processing cost of the parts, and ensuring smooth movement and a good sealing effect between the parts. Furthermore, the simple structure of the relief seal 100 thus provided simplifies the machining of the relief valve body 30 and facilitates its installation with the corresponding relief valve body 30 and relief valve retaining sleeve 20, thus reducing the difficulty of assembly.

[0114] According to some further embodiments of the present application, as shown in Figures 17 and 18, the overflow seal 100 is configured in an annular shape and is located between the outer circumferential surface of the overflow valve body 30 and the inner circumferential surface of the overflow valve fixing sleeve 20. The deformation groove 101 extends along the circumference of the overflow seal 100, and the width of the deformation groove 101 on the side adjacent to the overflow chamber 81 is greater than the width of the deformation groove 101 on the side away from the overflow chamber 81. For example, the width of the deformation groove 101 gradually decreases in a direction away from the overflow chamber 81. By arranging the overflow seal 100 between the outer circumferential surface of the overflow valve body 30 and the inner circumferential surface of the overflow valve fixing sleeve 20, the overflow seal 100 can ensure the sealing of the overflow chamber 81 when the overflow valve body 30 moves up and down. Furthermore, the width of the deformation groove 101 gradually decreases from top to bottom, so that the deformation groove 101 can be better pressed against the outer circumferential surface of the relief valve body 30 and the inner circumferential surface of the relief valve fixing sleeve 20 during deformation, thereby further improving the sealing performance of the relief seal 100. The cross-section of the deformation groove 101 can be V-shaped or other shapes, such as U-shaped.

[0115] According to some embodiments of the present application, as shown in Figures 1 to 5, the distance between the outer circumference and the inner circumference of the overflow seal 100 on the side adjacent to the overflow chamber 81 is greater than the distance between the outer circumference and the inner circumference on the side away from the overflow chamber 81. For example, the distance between the outer circumference and the inner circumference of the overflow seal 100 gradually decreases in a direction away from the overflow chamber 81. In other words, the distance between the outer circumference and the inner circumference of the overflow seal 100 can gradually decrease in a direction from top to bottom. This can facilitate the installation between the overflow valve body 30 and the overflow valve fixing sleeve 20 on the one hand, and the installation of the overflow seal 100 on the other hand.

[0116] According to some embodiments of the present application, as shown in FIG17 , the overflow seal 100 may include an inner seal ring 102 and an outer seal ring 103. The outer seal ring 103 abuts against the overflow valve retaining sleeve 20, while the inner seal ring 102 abuts against the overflow valve body 30. A deformation groove 101 is formed between the outer seal ring 103 and the inner seal ring 102. Specifically, one end of the inner seal ring 102 is connected to one end of the outer seal ring 103, and the other end of the inner seal ring 102 and the other end of the outer seal ring 103 are spaced apart from each other. This forms the deformation groove 101, allowing the inner seal ring 102 to cling tightly to the overflow valve body 30, while the outer seal ring 103 to cling tightly to the overflow valve retaining sleeve 20. Thus, when force is applied to the deformation groove 101, the inner seal ring 102 and the outer seal ring 103 can better cling to the overflow valve body 30 and the overflow valve retaining sleeve 20.

[0117] According to some specific embodiments of the present application, as shown in Figures 17 and 18, the cross-section of the inner sealing ring 102 is arranged parallel to the central axis of the overflow seal 100, and the cross-section of the outer sealing ring 103 is arranged at an angle relative to the central axis of the overflow seal 100. The distance between the outer sealing ring 103 and the central axis of the overflow seal 100 gradually increases in the direction toward the overflow chamber 81. In other words, the inner sealing ring 102 can be a circular sealing ring, which is equidistant from the central axis of the overflow seal 100 from top to bottom; the outer sealing ring 103 can be a conical sealing ring, which is gradually spaced from the central axis of the overflow seal 100 from top to bottom. This arrangement improves the fit of the inner sealing ring 102 to the overflow valve body 30, and the outer sealing ring 103 can also contact the overflow valve fixing sleeve 20 at an angle, facilitating subsequent deformation of the deformation groove 101, thereby achieving better sealing and improving the sealing performance of the overflow chamber 81.

[0118] According to some specific embodiments of the present application, as shown in Figures 17 and 18, the cross-section of the inner sealing ring 102 parallel to the central axis of the overflow seal 100 is linear or arc-shaped, and the cross-section of the outer sealing ring 103 parallel to the central axis of the overflow seal 100 is linear or arc-shaped. In other words, the cross-section of the inner sealing ring 102 can be linear in the vertical direction, or it can be arc-shaped in the vertical direction. Both of these forms of the inner sealing ring 102 can better contact and seal with the overflow valve body 30. The cross-section of the outer sealing ring 103 can be linear and inclined in the vertical direction, or it can be arc-shaped in the vertical direction. Both of these forms of the outer sealing ring 103 can better contact and seal with the overflow valve fixing sleeve 20, and can also facilitate the subsequent deformation of the outer sealing ring 103, and can also better adhere to the overflow valve fixing sleeve 20 during deformation.

[0119] According to a specific embodiment of the present application, as shown in Figures 17 and 18, the overflow seal 100 also includes a bottom sealing ring 104, the outer peripheral edge of the bottom sealing ring 104 is connected to the side of the outer sealing ring 103 facing away from the overflow chamber 81, and the inner peripheral edge of the bottom sealing ring 104 is connected to the side of the inner sealing ring 102 facing away from the overflow chamber 81. In other words, the bottom sealing ring 104 can, on the one hand, play the role of connecting the inner sealing ring 102 and the outer sealing ring 103, and on the other hand, it can further improve the sealing performance by contacting with the overflow valve body 30. Among them, the bottom sealing ring 104, the inner sealing ring 102 and the outer sealing ring 103 can be integrally formed. Of course, the overflow seal 100 can also adopt the form of directly connecting the inner sealing ring 102 and the outer sealing ring 103, which can simplify the structure of the overflow seal 100.

[0120] Furthermore, as shown in Figures 17 and 18 , the side surface of the bottom seal ring 104 facing away from the outer seal ring 103 and the inner seal ring 102 is configured as a plane perpendicular to the central axis of the overflow seal 100. In other words, the lower side surface of the bottom seal ring 104 can be configured as a plane. This configuration of the bottom seal ring 104 allows it to fit snugly against the overflow valve body 30, thereby improving the sealing performance between the overflow seal 100 and the overflow valve body 30.

[0121] According to some specific embodiments of the present application, the side surface of the bottom sealing ring 104 forming the bottom of the deformation groove 101 is configured as a plane perpendicular to the central axis of the overflow seal 100. In other words, the upper side surface of the bottom sealing ring 104 can also be configured as a plane. This can not only facilitate the formation of the deformation groove 101, but also facilitate the outer sealing ring 103 to be deformed preferentially when the deformation groove 101 deforms, thereby better improving the sealing effect.

[0122] According to some embodiments of the present application, as shown in Figures 1-5, 10, and 11, at least one of the inner circumferential surface of the relief valve retaining sleeve 20 and the outer circumferential surface of the relief valve body 30 is provided with an overflow sealing groove 32, and the overflow seal 100 is disposed in the overflow sealing groove 32. In other words, the inner circumferential surface of the relief valve retaining sleeve 20 can be provided with an overflow sealing groove 32, the outer circumferential surface of the relief valve body 30 can also be provided with an overflow sealing groove 32, or both the inner circumferential surface of the relief valve retaining sleeve 20 and the outer circumferential surface of the relief valve body 30 can be provided with overflow sealing grooves 32. The overflow sealing groove 32 serves as a mounting point for the overflow seal 100, thereby ensuring its reliable installation on the corresponding relief valve retaining sleeve 20 and relief valve body 30 and preventing it from falling off. Furthermore, the overflow seal 100 can be assembled with ease because it has a deformation groove 101, thereby further improving assembly efficiency.

[0123] Among them, the overflow seal 100 can include an inner ring and an outer ring, one end of the inner ring is connected to one end of the outer ring, and the other end of the inner ring and the other end of the outer ring are far away from each other, so that a deformation groove 101 can be formed, the inner ring can be tightly attached to the inner wall of the overflow sealing groove 32, the outer ring can extend outward at an angle, and the other end of the outer ring can stop at the inner circumferential surface of the overflow valve fixing sleeve 20 or the outer circumferential surface of the overflow valve body 30, so that the sealing can be ensured.

[0124] According to some embodiments of the present application, as shown in FIG11 , the overflow sealing groove 32 has a first groove wall 321 and a second groove wall 322. The first groove wall 321 is located on the side of the overflow sealing groove 32 facing the overflow chamber 81, and the second groove wall 322 is located on the side of the overflow sealing groove 32 facing away from the overflow chamber 81. The second groove wall 322 is higher than the first groove wall 321 in a direction perpendicular to the axial direction of the overflow valve body 30. In other words, the first groove wall 321 is formed on the upper side of the overflow sealing groove 32, and the second groove wall 322 is formed on the lower side. Compared to the second groove wall 322, the first groove wall 321 is located closer to the overflow chamber 81. The overflow seal 100 can be installed from top to bottom in the overflow seal groove 32. Since the second groove wall 322 is higher than the first groove wall 321, the overflow seal 100 can better pass through the first groove wall 321 and then enter the overflow seal groove 32, thereby facilitating the assembly of the overflow seal 100 and reducing the difficulty of assembling the adjustment module 1000.

[0125] According to some embodiments of the present application, referring to Figures 1-30, the overflow valve body 30 is provided with a first overflow channel 83 and a second overflow channel 84. The first overflow channel 83 is in communication with the overflow chamber 81 of the regulating module 1000, and the first overflow channel 83 allows fluid to flow into the overflow chamber 81. The second overflow channel 84 is in communication with the overflow chamber 81, and the second overflow channel 84 allows fluid to flow out of the overflow chamber 81. In other words, the overflow valve body 30 has a first overflow channel 83 and a second overflow channel 84 in communication with the overflow chamber 81. The first overflow channel 83 is a fluid inflow channel for the overflow chamber 81, and the second overflow channel 84 is a fluid outflow channel for the overflow chamber 81. By providing the first overflow channel 83, the second overflow channel 84, and the overflow chamber 81, a fluid flow method can be provided for the regulating module 1000, thereby facilitating the regulating module 1000 to adjust the fluid flow between the compression chamber and the recovery chamber.

[0126] The minimum cross-sectional area of ​​the second overflow channel 84 is greater than the minimum cross-sectional area of ​​the first overflow channel 83. That is, the minimum cross-sectional area of ​​the first overflow channel 83 corresponds to the minimum flow rate of the first overflow channel 83, and the minimum cross-sectional area of ​​the second overflow channel 84 corresponds to the minimum flow rate of the second overflow channel 84. By setting the minimum flow rate of the second overflow channel 84 to be greater than the minimum flow rate of the first overflow channel 83, the fluid entering the overflow chamber 81 can flow smoothly through the second overflow channel 84 and out of the overflow chamber 81. This can make the fluid flow through the overflow chamber 81 more stable, without generating obstructive pressure, and the fluid flow curve is smooth with minimal fluctuation, further improving the smoothness of the fluid flow within the regulation module 1000.

[0127] According to a specific embodiment of the present application, as shown in Figures 10 and 11, the overflow valve body 30 includes a valve shoulder 33 and a guide post 31. A first overflow channel 83 is provided on the valve shoulder 33, an overflow chamber 81 is located on one side of the valve shoulder 33 in the thickness direction, the guide post 31 is provided on one side of the valve shoulder 33 in the thickness direction, and a second overflow channel 84 is provided on the guide post 31. It can be understood that the guide post 31 and the overflow chamber 81 are both located on one side of the valve shoulder 33 in the thickness direction, that is, the guide post 31 and the overflow chamber 81 are both located above the valve shoulder 33. The first overflow channel 83 is provided on the valve shoulder 33 and penetrates the valve shoulder 33. In this way, fluid in the space below the valve shoulder 33 can flow into the overflow chamber 81 through the first overflow channel 83, while the second overflow channel 84 in the guide post 31 can guide the fluid in the overflow chamber 81 to flow out. The overflow valve body 30 configured in this manner has a simple structure, and the first overflow channel 83 and the second overflow channel 84 are reasonably positioned, which can facilitate the flow of fluid into and out of the overflow chamber 81 and ensure smooth flow of the fluid.

[0128] According to a specific embodiment of the present application, as shown in Figures 10 and 11 , the central axis of the guide post 31 coincides with the central axis of the valve shoulder 33. In other words, the guide post 31 is positioned at the center of the upper side of the valve shoulder 33. This allows the fluid within the overflow chamber 81 to flow toward the center and then smoothly out through the second overflow channel 84 within the guide post 31. This configuration of the guide post 31 provides greater structural stability and facilitates fluid flow between the overflow chamber 81 and the second overflow channel 84.

[0129] According to a specific embodiment of the present application, as shown in Figures 10 and 11, the second overflow channel 84 includes at least one radial segment 841 and an axial segment 842. The radial segment 841 extends in a direction perpendicular to the axial direction of the guide post 31. One end of the radial segment 841 communicates with the overflow chamber 81. The axial segment 842 extends in the axial direction of the guide post 31. One end of the axial segment 842 communicates with the other end of the radial segment 841. The other end of the axial segment 842 can communicate with the pilot chamber 82. Furthermore, the other end of the axial segment 842 passes through the end of the guide post 31 facing away from the valve shoulder 33. The other end of the axial segment 842 can communicate with the pilot chamber 82.

[0130] It is understood that the second overflow channel 84 is mainly divided into a radial section 841 and an axial section 842. The radial section 841 guides the fluid in the overflow chamber 81 into the second overflow channel 84, and then guides the fluid into the pilot chamber 82 through the axial section 842. During this process, the fluid first flows radially and then axially, which allows the fluid to flow from the overflow chamber 81 into the pilot chamber 82, ensuring that the fluid enters the pilot chamber 82 smoothly. The second overflow channel 84 configured in this way can, on the one hand, ensure the connectivity between the overflow chamber 81 and the pilot chamber 82, and on the other hand, facilitate the molding design and reduce the design difficulty of the guide post 31. The axial direction of the axial section 842 is the vertical direction as shown in the figure. The central axis of the axial section 842 coincides with the central axis of the guide post 31. The radial section 841 is located near the lower end of the guide post 31. This ensures that the inlet of the radial section 841 is continuously connected to the overflow chamber 81, and the radial section 841 can reduce the resistance of the fluid entering the overflow chamber 81.

[0131] According to a specific embodiment of the present application, the ratio of the minimum cross-sectional area of ​​the first overflow channel 83 to the minimum cross-sectional area of ​​the axial section 842 is between 1:10 and 1:4. In other words, the minimum cross-sectional area of ​​the axial section 842 is at least four times the minimum cross-sectional area of ​​the first overflow channel 83 and at most ten times the minimum cross-sectional area of ​​the first overflow channel 83. This configuration of the axial section 842 ensures that fluid flowing from the first overflow channel 83 into the overflow chamber 81 flows smoothly out of the axial section 842, eliminating the problem of insufficient inflow or outflow. This ensures smooth fluid flow and produces a smooth, minimally volatile fluid flow curve.

[0132] The sum of the minimum cross-sectional areas of all radial segments 841 is greater than or equal to the minimum cross-sectional area of ​​the axial segment 842. In other words, taking all radial segments 841 as a whole, the minimum cross-sectional area of ​​the whole is no less than the minimum cross-sectional area of ​​the axial segment 842. Thus, the minimum cross-sectional area of ​​the second overflow channel 84 is primarily based on the minimum cross-sectional area of ​​the axial segment 842. This allows for better control of the flow of fluid within the second overflow channel 84 and ensures smooth flow of the fluid.

[0133] Optionally, as shown in Figures 10 and 11 , there are multiple radial segments 841, and the multiple radial segments 841 are spaced apart along the circumference of the guide pillar 31. By providing multiple circumferentially spaced radial segments 841, the fluid in the overflow chamber 81 can enter the second overflow channel 84 from multiple locations along the circumference of the guide pillar 31, which can facilitate communication between the overflow chamber 81 and the pilot chamber 82 through the second overflow channel 84. For example, there can be two radial segments 841, and the two radial segments 841 are symmetrically arranged about the central axis of the axial segment 842. For another example, there can be three radial segments 841, and the three radial segments 841 can be evenly spaced apart along the circumference of the guide pillar 31.

[0134] Specifically, as shown in Figures 10 and 11 , there are two radial segments 841, and the central axes of the two radial segments 841 coincide. In other words, the two radial segments 841 are symmetrically arranged about the central axis of the axial segment 842. Such that the two radial segments 841 are in communication with each other and with the axial segment 842, can facilitate fluid entry into the axial segments 842 from two opposite directions and then out of the overflow chamber 81, thereby promoting smooth fluid flow.

[0135] Alternatively, as shown in Figures 10 and 11 , the axial section 842 includes a bottom section 8421 and a top section 8422. One end of the bottom section 8421 communicates with the other end of the radial section 841, while one end of the top section 8422 communicates with the other end of the bottom section 8421. The other end of the top section 8422 extends through the end of the guide post 31 facing away from the valve shoulder 33. The cross-sectional area of ​​the bottom section 8421 is smaller than the cross-sectional area of ​​the top section 8422. In other words, the axial section 842 is primarily composed of the bottom section 8421 and the top section 8422, with the top section 8422 positioned above the bottom section 8421. Thus, the cross-sectional area of ​​the bottom section 8421 is the smallest cross-sectional area of ​​the axial section 842. Fluid entering the second overflow channel 84 from the radial section 841 first passes through the bottom section 8421 and then through the top section 8422. This creates a flow expansion process, which facilitates fluid flow into the pilot chamber 82.

[0136] As shown in Figures 10 and 11 , the first overflow channel 83 includes a middle section 8313, a first gradually expanding section 8311, and a second gradually expanding section 8312. The first gradually expanding section 8311 is connected to the middle section 8313 and is located on the side of the middle section 8313 facing away from the overflow chamber 81. The cross-sectional area of ​​the end of the first gradually expanding section 8311 adjacent to the middle section 8313 is smaller than the cross-sectional area of ​​the end of the first gradually expanding section 8311 away from the middle section 8313. For example, the cross-sectional area of ​​the first gradually expanding section 8311 gradually increases away from the middle section 8313. The second gradually expanding section 8312 is connected to the middle section 8313 and is located on the side of the middle section 8313 facing the overflow chamber 81. The cross-sectional area of ​​the second gradually expanding section 8312 gradually increases away from the middle section 8313. In other words, the first overflow channel 83 is primarily composed of a middle section 8313 and gradually diverging sections on either side of the middle section 8313. Both gradually diverging sections have gradually increasing cross-sectional areas as they move away from the middle section 8313. With this configuration, the minimum cross-sectional area of ​​the first overflow channel 83 is equal to the cross-sectional area of ​​the middle section 8313. This stabilizes fluid flow in the first overflow channel 83. Furthermore, the first gradually diverging section 8311 facilitates fluid flow into the middle section 8313, while the second gradually diverging section 8312 undergoes a flow expansion process, facilitating fluid flow into the overflow chamber 81.

[0137] According to a specific embodiment of the present application, as shown in Figures 10 and 11, the relief valve body 30 further includes a valve ring 34. The valve ring 34 is disposed on the other side of the valve shoulder 33 in the thickness direction, and the valve ring 34 extends in an annular shape along the outer circumference of the valve shoulder 33. In other words, the valve ring 34 is disposed below the valve shoulder 33 and can cooperate with the relief valve fixing sleeve 20, thereby ensuring stable movement of the relief valve body 30 on the relief valve fixing sleeve 20.

[0138] Furthermore, as shown in Figures 10 and 11, the outer circumferential surface of the valve ring 34 is provided with an overflow sealing groove 32 for assembling the overflow seal 100. The overflow sealing groove 32 can serve to install the overflow seal 100, thereby ensuring its reliable installation on the corresponding overflow valve fixing sleeve 20 and the overflow valve body 30, preventing it from falling off, and also reducing the difficulty of assembly through this installation method. Moreover, since the overflow seal 100 has the deformation groove 101, the difficulty of assembling it with the overflow sealing groove 32 is relatively low, which can further improve assembly efficiency.

[0139] The overflow sealing groove 32 has a first groove wall 321 and a second groove wall 322. The first groove wall 321 is located on the side of the overflow sealing groove 32 facing the guide post 31, and the second groove wall 322 is located on the side of the overflow sealing groove 32 facing away from the guide post 31. In a direction perpendicular to the axial direction of the overflow valve body 30, the second groove wall 322 is higher than the first groove wall 321. It can be understood that the overflow sealing groove 32 has the first groove wall 321 and the second groove wall 322. The first groove wall 321 is located on the side of the overflow sealing groove 32 facing the overflow chamber 81, and the second groove wall 322 is located on the side of the overflow sealing groove 32 facing away from the overflow chamber 81. The second groove wall 322 is higher than the first groove wall 321. In other words, the first groove wall 321 is formed on the upper side of the overflow sealing groove 32, and the second groove wall 322 is formed on the lower side. The first groove wall 321 is located closer to the overflow chamber 81 than the second groove wall 322. The overflow seal 100 can be installed from top to bottom in the overflow seal groove 32. Since the second groove wall 322 is higher than the first groove wall 321, the overflow seal 100 can better pass through the first groove wall 321 and then enter the overflow seal groove 32, thereby facilitating the assembly of the overflow seal 100 and reducing the difficulty of assembling the adjustment module 1000.

[0140] As shown in Figures 10 and 11 , the end of the guide post 31 away from the valve shoulder 33 is configured with a sealing land 311 for mating with the pilot valve plug 90 of the regulating module 1000. The sealing land 311 is disposed around the second overflow channel 84. The distance between the inner circumferential surface of the end of the sealing land 311 adjacent to the valve shoulder 33 and the central axis of the sealing land 311 is smaller than the distance between the inner circumferential surface of the end of the sealing land 311 away from the valve shoulder 33 and the central axis of the sealing land 311. For example, the distance between the inner circumferential surface of the sealing land 311 and the central axis of the sealing land 311 gradually increases as it moves away from the valve shoulder 33. The provision of the sealing land 311 ensures a better sealing engagement with the pilot valve plug 90, ensuring a tight seal after the pilot valve plug 90 closes the second overflow channel 84. Furthermore, the inner circumferential surface of the sealing land 311 is configured as an inverted conical surface, which better mates with the valve head 92 of the pilot valve plug 90, thereby enhancing the reliability of the engagement between the two.

[0141] Furthermore, as shown in Figures 10 and 11 , the distance between the outer circumferential surface of the end of the sealing ring platform 311 adjacent to the valve shoulder 33 and the central axis of the sealing ring platform 311 is greater than the distance between the outer circumferential surface of the end of the sealing ring platform 311 away from the valve shoulder 33 and the central axis of the sealing ring platform 311. For example, the distance between the outer circumferential surface of the sealing ring platform 311 and the central axis of the sealing ring platform 311 gradually decreases in a direction away from the valve shoulder 33. The outer circumferential surface of the sealing ring platform 311 configured in this manner can serve as a flow guide. When the second overflow channel 84 is opened, the fluid flowing out of the second overflow channel 84 can flow along the outer circumferential surface of the sealing ring platform 311, allowing it to flow more effectively into the pilot chamber 82.

[0142] According to some embodiments of the present application, a regulating module 1000 includes a control valve 60. A relief valve body 30 adjusts the fluid flow between the compression chamber and the recovery chamber by moving closer to and further from the relief valve seat 10. The control valve 60 controls the movement of the relief valve body 30 toward and away from the relief valve seat 10. This configuration of the regulating module 1000 provides stable electromagnetic control and excellent vibration reduction. For example, the control valve 60 in the present application may be a solenoid valve.

[0143] According to some embodiments of the present application, as shown in Figures 1-5, a regulating module 1000 includes a valve body 50 and a control valve 60. The relief valve fixing sleeve 20 is installed in the valve body 50, and at least a portion of the relief valve seat 10 is installed in the valve body 50. The control valve 60 can be installed in the valve body 50, and the control valve 60 controls the movement of the relief valve body 30 to move closer to and away from the relief valve seat 10. In other words, the relief valve fixing sleeve 20, the relief valve seat 10, and the control valve 60 are installed in the valve body 50. The valve body 50 can perform the functions of installation and fixing, making the regulating module 1000 integrated into one body, thereby improving the integration of the regulating module 1000. Moreover, the regulating module 1000 can actively control the movement of the relief valve body 30 through the control valve 60, thereby controlling the flow rate of the fluid flowing between the compression chamber and the recovery chamber.

[0144] Among them, the control valve 60 is installed on the outside of the valve body 50. For example, the control valve 60 is installed on the upper side of the valve body 50, so that it can be separated from structural parts such as the overflow valve fixing sleeve 20, and it can also facilitate the cooperation between the control valve 60 and the overflow valve body 30 to control the movement of the overflow valve body 30 in the up and down directions.

[0145] According to an optional embodiment of the present application, in combination with Figures 1 to 7, the overflow valve seat 10 is provided with at least one first connecting hole 11 and at least one second connecting hole 12, one of the compression chamber and the restoration chamber is connected to the first connecting hole 11, and the other of the compression chamber and the restoration chamber is connected to the second connecting hole 12. It can be understood that both the compression chamber and the restoration chamber are connected to the overflow valve seat 10. For example, when the compression chamber is connected to the first connecting hole 11, the restoration chamber is connected to the second connecting hole 12. For another example, when the restoration chamber is connected to the first connecting hole 11, the compression chamber is connected to the second connecting hole 12. Among them, the first connecting hole 11 and the second connecting hole 12 can be arranged to penetrate in the up and down directions, so as to ensure the fluidity of the internal fluid. The overflow valve seat 10 arranged in this way has a simple structure and can connect the compression chamber and the restoration chamber at the same time.

[0146] According to an optional embodiment of the present application, as shown in Figures 1-5, a regulating module 1000 is configured with a first flow path 70 and a second flow path 80. The flow rates of the first flow path 70 and the second flow path 80 are different. The regulating module 1000 controls the first and second communicating holes 11 and 12 to selectively flow through at least one of the first and second flow paths 70 and 80. It is understood that the fluid flowing through the first flow path 70 can correspond to a first flow pattern, while the fluid flowing through the second flow path 80 can correspond to a second flow pattern. In other words, the first and second flow paths 70 and 80 are both located between the first and second communicating holes 11 and 12. The regulating module 1000 controls the communication and fluid flow between the compression chamber and the recovery chamber by controlling the flow of the first and second flow paths 70 and 80. This control method is to control the movement of the relief valve body 30 through the control valve 60 and fluid pressure. This configuration of the regulating module 1000 can better control the fluid flow, allowing the shock absorber to accurately display "soft" and "hard" settings.

[0147] 6 and 7 , the first communicating hole 11 is provided at the center of the overflow valve seat 10 , and there are multiple second communicating holes 12 , which are arranged at intervals along the circumference of the overflow valve seat 10 , and the multiple second communicating holes 12 surround the first communicating hole 11 .

[0148] It is understandable that there can be only one first connecting hole 11, which is located at the center of the overflow valve seat 10, that is, the central axis of the first connecting hole 11 is collinear with the central axis of the overflow valve seat 10, and the cross-section of the first connecting hole 11 can be a circular hole. Multiple second connecting holes 12 can be evenly arranged on the overflow valve seat 10, which can facilitate the arrangement of the first connecting holes 11 and the second connecting holes 12. Moreover, by providing multiple second connecting holes 12, the fluid can flow from any one of the multiple second connecting holes 12 into the corresponding compression chamber or recovery chamber. The cross-section of the second connecting hole 12 can be a trapezoid, and the bottom edge of the trapezoid is a circular arc edge. The overflow valve seat 10 configured in this way has a simple structure and can be connected to the corresponding compression chamber and recovery chamber at the same time, which can ensure the smooth flow of the fluid.

[0149] According to a specific embodiment of the present application, as shown in Figures 1-5, the gap between the relief valve body 30 and the relief valve seat 10 forms a first flow path 70. The relief valve body 30 adjusts the flow rate of the first flow path 70 by moving closer to and away from the relief valve seat 10. The adjustment module 1000 shown in Figure 2 is in a first state, in which the control valve 60 is not in operation. Under the action of the fluid, the relief valve body 30 moves upward, creating a gap between the relief valve body 30 and the relief valve seat 10, thus forming the first flow path 70. Fluid entering the first connecting hole 11 passes through this gap into the surrounding second connecting hole 12. This first flow path 70 is simple to set up and adjust, facilitating fluid flow. Furthermore, it provides a relatively large fluid flow rate and low fluid damping, ensuring the basic damping performance of the shock absorber, thereby improving passenger comfort. This first state is suitable for vehicles traveling on relatively flat roads. By means of the plurality of second communicating holes 12 arranged in the circumferential direction, the fluid flowing out of the circumferential direction of the first communicating hole 11 can enter the surrounding second communicating holes 12 , thereby ensuring the smooth flow of the fluid.

[0150] According to some embodiments of the present application, as shown in FIG. 1 to FIG. 5 , the second flow path 80 passes through the relief valve body 30 and the relief valve fixing sleeve 20 , and the control valve 60 adjusts the flow of the second flow path 80 .

[0151] Among them, the regulating module 1000 shown in Figure 3 is in the second state, at this time the control valve 60 is in the working state, under the action of the control valve 60 and the fluid, the overflow valve body 30 moves downward and contacts the overflow valve seat 10, and the gap between the overflow valve body 30 and the overflow valve seat 10 is closed, that is, the first flow path 70 is closed. At this time, the regulating module 1000 starts to build pressure.

[0152] FIG4 shows the adjustment module 1000 in its third state. In this state, the fluid pushes open the control valve 60, opening the second flow path 80. Fluid entering the first communication hole 11 flows through this second flow path 80 into the surrounding second communication holes 12. This arrangement of the second flow path 80 allows the fluid pressure to open the second flow path 80 after the first flow path 70 is closed, allowing fluid to flow out of the second communication holes 12 in another manner, thereby making the shock absorber behave "hard."

[0153] FIG5 shows the adjustment module 1000 in its fourth state. The fluid pressure increases further, and the fluid entering the first communication hole 11 pushes the relief valve body 30 upward. The first and second flow paths 70 and 80 are simultaneously opened. A portion of the fluid entering the first communication hole 11 flows from the first flow path 70 into the second communication hole 12, while another portion flows from the second flow path 80 into the second communication hole 12. This results in a "harder" shock absorber performance. These second, third, and fourth states are suitable for vehicles traveling on roads with potholes or other uneven surfaces.

[0154] According to a specific embodiment of the present application, as shown in Figures 1 to 5, the second flow path 80 includes an overflow chamber 81, a pilot chamber 82, a first overflow channel 83, a second overflow channel 84 and a third overflow channel 85. The overflow valve body 30 and the overflow valve fixing sleeve 20 jointly define the overflow chamber 81. The overflow elastic member 40 is arranged in the overflow chamber 81. The overflow valve fixing sleeve 20 and the valve body 50 jointly define the pilot chamber 82. The first overflow channel 83 is arranged in the overflow valve body 30, and the first overflow channel 83 is respectively communicated with the first communicating hole 11 and the overflow chamber 81. The second overflow channel 84 is arranged in the overflow valve body 30, and the second overflow channel 84 is respectively communicated with the overflow chamber 81 and the pilot chamber 82. The third overflow channel 85 is arranged in the overflow valve fixing sleeve 20, and the third overflow channel 85 is respectively communicated with the pilot chamber 82 and the second communicating hole 12. wherein the control valve 60 adjusts the flow of the second overflow channel 84.

[0155] It will be appreciated that in the adjustment module 1000 shown in Figure 4, fluid flowing into the first communicating hole 11 sequentially flows through the first overflow channel 83, the overflow chamber 81, the second overflow channel 84, the pilot chamber 82, and the third overflow channel 85 before exiting the second communicating hole 12. This configuration of the second flow path 80 allows fluid to enter between the relief valve body 30 and the relief valve retaining sleeve 20, then flow from the relief valve retaining sleeve 20 to between the valve body 50 and the relief valve retaining sleeve 20, and finally exit through the second communicating hole 12. By extending the path of the second flow path 80, the fluid flow rate and flow rate can be reduced, thereby meeting the shock absorber's desired "hard" performance.

[0156] The minimum cross-sectional area of ​​the second overflow channel 84 is greater than the minimum cross-sectional area of ​​the first overflow channel 83. In other words, per unit time, the minimum flow rate through the second overflow channel 84 is greater than the minimum flow rate through the first overflow channel 83. This allows the fluid entering the overflow chamber 81 to smoothly pass through the second overflow channel 84 and then flow out of the overflow chamber 81. This makes the fluid flow through the overflow chamber 81 more stable, the fluid flow curve is smooth, and the curve fluctuation is small, which can further improve the smoothness of the fluid flow in the regulating module 1000.

[0157] Optionally, as shown in Figures 1-5, 8, 10, and 11, a guide post 31 is configured on the side of the relief valve body 30 facing the relief valve retaining sleeve 20. The relief elastic member 40 is disposed around the guide post 31. The relief valve retaining sleeve 20 is provided with a guide hole 21, and the guide post 31 is movably engaged with the guide hole 21. The second relief channel 84 is disposed on the guide post 31. The provision of the guide post 31 and the guide hole 21 provides a guiding function, facilitating the vertical movement of the relief valve body 30 relative to the relief valve retaining sleeve 20. Furthermore, since the second relief channel 84 is disposed on the guide post 31, the fluid within the relief chamber 81 can flow into the pilot chamber 82 through the second relief channel 84 on the guide post 31. This simplifies the configuration of the second relief channel 84 and facilitates its control by the control valve 60. The guide post 31 also provides a multi-functional integrated function.

[0158] The guide post 31 and the guide hole 21 can be clearance-fitted to ensure smooth movement of the guide post 31. The guide post 31 can be cylindrical, and the guide hole 21 can be circular. The overflow elastic member 40 is disposed around the guide post 31. This prevents interference between the two and facilitates the installation and placement of the overflow elastic member 40 relative to the guide post 31, thereby facilitating the installation and placement of the overflow elastic member 40.

[0159] The control valve 60 includes a pilot valve plug 90 , which extends into the pilot chamber 82 . The control valve 60 adjusts the flow rate of the second overflow channel 84 by controlling the pilot valve plug 90 to move closer to and away from the guide post 31 .

[0160] It is understood that the pilot valve plug 90 is primarily located within the pilot chamber 82 and, through cooperation with the guide post 31, regulates the flow rate of the second overflow channel 84. For example, as shown in Figures 2 and 3, under the action of the control valve 60, the pilot valve plug 90 continuously contacts the guide post 31 and closes the second overflow channel 84. At this time, the second flow path 80 is closed. As shown in Figures 4 and 5, under the action of the fluid, the fluid can push the pilot valve plug 90, creating a gap between the pilot valve plug 90 and the guide post 31, and the second overflow channel 84 is opened. At this time, the second flow path 80 is opened. By providing the pilot valve plug 90, the second overflow channel 84 can be effectively closed, ensuring the sealing performance of the closure. Moreover, the second flow path 80 can also be opened under the action of the fluid, thereby achieving flow path switching, thereby ensuring the regulation performance of the regulation module 1000.

[0161] According to some embodiments of the present application, specifically, as shown in Figures 15 and 16, the pilot valve plug 90 includes a valve plate 91, a valve head 92 and a guide ring 93. The valve head 92 is arranged on the side of the valve plate 91 facing the guide column 31. The valve head 92 adjusts the flow of the second overflow channel 84 by extending into and away from the second overflow channel 84. The guide ring 93 is arranged on the side of the valve plate 91 facing the overflow valve fixing sleeve 20, and the guide ring 93 is arranged around the valve head 92.

[0162] It is understood that the pilot valve plug 90 primarily consists of a valve disc 91, a valve head 92, and a guide ring 93. Both the valve head 92 and the guide ring 93 are located on the side of the valve disc 91 facing the guide post 31. The valve head 92 serves to regulate the second overflow channel 84 (i.e., the outlet of the axial section 842). By protruding from the valve disc 91, the valve head 92 can better mate with the second overflow channel 84 and extend into the second overflow channel 84 to seal it. Furthermore, under the action of fluid, the valve head 92 can move upward, creating a gap that allows fluid to enter the pilot chamber 82. This valve body 50 has a simple structure and excellent regulation. Because the guide ring 93 surrounds the valve head 92, fluid flowing into the pilot chamber 82 can flow along the valve head 92 and then, guided by the valve disc 91, flow toward the guide ring 93. The guide ring 93 can redirect the fluid and direct it to the third overflow channel 85, thereby reducing pressure loss and facilitating rapid entry of the fluid into the third overflow channel 85.

[0163] Optionally, as shown in FIG15 , the cross-sectional area of ​​the end of the valve head 92 adjacent to the guide post 31 is smaller than the cross-sectional area of ​​the end of the valve head 92 distal to the guide post 31. For example, the cross-sectional area of ​​the valve head 92 gradually decreases in the direction toward the guide post 31. In other words, the cross-sectional area of ​​the valve head 92 gradually decreases from top to bottom. This configuration of the valve head 92 generally assumes an inverted conical shape, which facilitates the valve head 92 extending into the axial section 842 of the second overflow channel 84. When the axial section 842 is closed and opened, the movement of the valve head 92 can change the fluid flow rate in the second overflow channel 84, thereby better adjusting the fluid flow rate between the compression chamber and the recovery chamber according to actual conditions.

[0164] In some embodiments of the present application, the guide ring 93 can be arranged corresponding to the outer edge of the valve plate 91, and its height in the up and down directions can be smaller than the height of the valve head 92 in the up and down directions, so that there is enough space between the guide ring 93 and the overflow valve fixing sleeve 20, which can better play a guiding role.

[0165] According to an optional embodiment of the present application, as shown in Figures 1-5, 8, and 9, there is at least one third overflow channel 85, and the at least one third overflow channel 85 is a groove provided on the outer side surface of the overflow valve fixing sleeve 20 that cooperates with the valve body 50. The two ends of the third overflow channel 85 respectively pass through the axial ends of the overflow valve fixing sleeve 20. In other words, at least one groove is provided on the outer periphery of the overflow valve fixing sleeve 20, and the groove extends vertically. The fluid flowing into the pilot chamber 82 can flow from top to bottom along the groove until it reaches the second connecting hole 12. The third overflow channel 85 thus provided has a simple structure and can facilitate the smooth flow of fluid to the second connecting hole 12. There are multiple grooves, and the multiple grooves can be spaced apart on the outer periphery of the overflow valve fixing sleeve 20.

[0166] According to a specific embodiment of the present application, as shown in FIG8 , the surface of the relief valve fixing sleeve 20 facing the pilot chamber 82 is provided with a guide ring 22, a guide ring groove 23, and at least one guide branch groove 24. The guide ring 22 is arranged around the second overflow channel 84, and the outer diameter of the guide ring 22 at one end extending into the pilot chamber 82 is smaller than the outer diameter at the other end. For example, the outer diameter of the guide ring 22 gradually decreases toward the interior of the pilot chamber 82. The guide ring groove 23 is arranged around the guide ring 22, and one end of the guide branch groove 24 is connected to the guide ring groove 23, and the other end of the guide branch groove 24 is connected to the third overflow channel 85.

[0167] It is understood that on the top surface of the relief valve fixing sleeve 20, a guide ring land 22, a guide ring groove 23, and at least one guide branch groove 24 are sequentially arranged from the radial inside to the outside. The provision of the guide ring land 22 facilitates cooperation with the valve head 92, facilitating the entry of the valve body 50 into the axial section 842, and also serves as a guide. The guide ring land 22 has a guide surface, the cross-sectional area of ​​which gradually increases from top to bottom, thereby obliquely guiding fluid into the guide ring groove 23. The guide ring groove 23 serves as a confluence, while the guide branch groove 24 serves as a diversion, allowing fluid to enter the corresponding third relief channel 85. By first converging and then diverting the fluid, the fluid flow rate into each third relief channel 85 can be made substantially uniform, ensuring smooth fluid flow.

[0168] As shown in FIG8 , there are multiple third overflow channels 85, and the multiple third overflow channels 85 are spaced apart along the circumference of the overflow valve fixing sleeve 20. There are multiple branch diversion grooves 24, and the multiple branch diversion grooves 24 are spaced apart along the circumference of the overflow valve fixing sleeve 20. One end of each branch diversion groove 24 is connected to the guide ring groove 23, and the other end of each branch diversion groove 24 is connected to the corresponding third overflow channel 85. In other words, the overflow valve fixing sleeve 20 is provided with multiple third overflow channels 85 and multiple branch diversion grooves 24, and the multiple third overflow channels 85 and the multiple branch diversion grooves 24 are connected in a one-to-one correspondence, which can achieve a diversion effect, ensure a generally uniform fluid flow rate, and ensure smooth fluid flow.

[0169] According to an optional embodiment of the present application, as shown in Figures 1 to 5, the adjustment module 1000 for the shock absorber also includes a relief valve distance adjustment ring 110, which is arranged in the valve body 50, and the relief valve distance adjustment ring 110 is supported between the relief valve seat 10 and the relief valve fixing sleeve 20.

[0170] It is understood that the relief valve seat 10 and the relief valve fixing sleeve 20 are both disposed within the valve body 50, and the relative distance between the two can be adjusted via the relief valve distance adjustment ring 110. This allows for fine-tuning of the valve opening stroke between the relief valve body 30 and the relief valve seat 10, thereby enabling the control valve 60 to quickly adjust the flow rate through the valve opening stroke, and thereby adjust the damping value of the control valve 60 based on the flow rate.

[0171] Furthermore, the relief valve seat 10 is threadedly engaged with the valve body 50. Adjusting the degree of tightening of the relief valve seat 10 with the valve body 50 adjusts the deformation of the relief valve distance adjustment ring 110, thereby adjusting the distance between the relief valve retaining sleeve 20 and the relief valve body 30 and the relief valve seat 10. Specifically, the relief valve distance adjustment ring 110 is provided on the upper end surface of the relief valve seat 10. The lower end surface of the relief valve distance adjustment ring 110 abuts the upper end surface of the relief valve seat 10, and the upper end surface of the relief valve distance adjustment ring 110 abuts the lower area of ​​the relief valve retaining sleeve 20. The relief valve seat 10 and the valve body 50 are threadedly rotated to lock the relief valve distance adjustment ring 110 and the relief valve retaining sleeve 20. The locking torque of the overflow valve seat 10 can compress the overflow valve distance adjustment ring 110 and deform it, thereby fine-tuning the valve opening stroke between the overflow valve body 30 and the overflow valve seat 10, and then enabling the control valve 60 to quickly adjust the flow rate through the valve opening stroke, and adjust the damping value of the control valve 60 through the flow rate.

[0172] Optionally, the relief valve is spaced 2.5 mm to 5 mm from the adjustment ring 110 in the axial direction, which is the vertical direction shown in FIG1 . By controlling the relief valve height from the adjustment ring 110 to be 2.5 mm to 5 mm, the distance between the relief valve body 30 and the relief valve retaining sleeve 20 can be further controlled, thereby further controlling the movement distance of the relief valve body 30 relative to the relief valve seat 10 , thereby facilitating a quick response of the adjustment module 1000 . The relief valve height from the adjustment ring 110 can be 2.5 mm, 3 mm, 4 mm, 5 mm, and so on.

[0173] As shown in Figures 1-5 , the cross-section of the relief valve distance adjustment ring 110 parallel to its axial direction is configured as an arc or a straight line. The distance between the end of the relief valve distance adjustment ring 110 adjacent to the relief valve seat 10 and the central axis of the relief valve distance adjustment ring 110 is greater than the distance between the end of the relief valve distance adjustment ring 110 adjacent to the relief valve retaining sleeve 20 and the central axis of the relief valve distance adjustment ring 110. For example, the distance between the relief valve distance adjustment ring 110 and its central axis gradually decreases from the relief valve seat 10 toward the relief valve retaining sleeve 20. While the relief valve distance adjustment ring 110 shown in Figure 1 has an arcuate cross-section, it can also have an inclined straight cross-section. Whether the relief valve distance adjustment ring 110 has an arcuate or straight cross-section, it can be well supported between the relief valve body 30 and the relief valve retaining sleeve 20. Furthermore, the relief valve distance adjustment ring 110 configured in this manner is easily deformable and adjustable, thereby enabling better adjustment of the distance between the relief valve seat 10 and the relief valve retaining sleeve 20. Moreover, in the direction from top to bottom, the cross-sectional area of ​​the overflow valve distance adjustment ring 110 gradually increases, so that the overflow valve distance adjustment ring 110 after deformation can be better supported on the overflow valve seat 10 and is more stable when the distance is adjusted by rotating the overflow valve seat 10.

[0174] Specifically, as shown in Figures 1 and 9, the end of the relief valve distance adjusting ring 110 facing the relief valve fixing sleeve 20 is constructed with a first abutting inclined surface 111, and the distance between the first abutting inclined surface 111 and the central axis of the relief valve distance adjusting ring 110 gradually increases along the direction from the relief valve seat 10 to the relief valve fixing sleeve 20; the end of the relief valve fixing sleeve 20 facing the relief valve distance adjusting ring 110 is constructed with a second abutting inclined surface 25, and the distance between the second abutting inclined surface 25 and the central axis of the relief valve fixing sleeve 20 gradually increases along the direction from the relief valve seat 10 to the relief valve fixing sleeve 20; the first abutting inclined surface 111 cooperates with the second abutting inclined surface 25.

[0175] It is understood that a first abutting bevel 111 is provided at the upper end of the relief valve distance adjustment ring 110, the cross section of which extends downwardly and obliquely in the radial direction from the outside to the inside. A second abutting bevel 25 is provided at the outer periphery of the lower end of the relief valve fixing sleeve 20, the cross section of which extends downwardly and obliquely in the radial direction from the outside to the inside. In this way, the first abutting bevel 111 and the second abutting bevel 25 can abut and cooperate with each other, thereby, on the one hand, facilitating the rapid alignment of the relief valve distance adjustment ring 110 with the relief valve fixing sleeve 20, and on the other hand, the force direction can be changed by the cooperation of the two abutting bevels, thereby forming an inwardly directed force component and an upwardly directed force component, thereby better adjusting the distance between the relief valve seat 10 and the relief valve fixing sleeve 20.

[0176] Optionally, as shown in Figures 1, 13, and 14, a stop ring 58 is formed on the inner wall of the valve body 50. The stop ring 58 abuts against the side of the relief valve retaining sleeve 20 facing away from the relief valve seat 10. In other words, the stop ring 58 is provided within the valve body 50. When the relief valve retaining sleeve 20 is installed, the relief valve retaining sleeve 20 abuts against the stop ring 58, thereby confirming whether the relief valve retaining sleeve 20 is properly installed. This arrangement also prevents the relief valve retaining sleeve 20 from being affected by the upward movement of the relief valve body 30 and moving upward accordingly, thereby further ensuring the structural reliability of the adjustment module 1000.

[0177] A certain gap may be left between the lower end of the relief valve fixing sleeve 20 and the relief valve seat 10, thereby allowing the fluid in the first flow path 70 to quickly enter the second communication hole 12. The lower end of the relief valve fixing sleeve 20 may also abut against the relief valve seat 10, so that the relief valve fixing sleeve 20 may be provided with a hole, and the hole allows the fluid to flow to the second communication hole 12.

[0178] 1 , the relief valve fixing sleeve 20 is interference-fitted with the valve body 50. This interference fit is simple and reliable, allowing the valve body 50 and the relief valve fixing sleeve 20 to be assembled into an integrated structure, and also facilitating the subsequent installation of the relief valve body 30 and the relief valve seat 10.

[0179] According to an optional embodiment of the present application, as shown in FIG1 , the control valve 60 includes an electromagnetic assembly 120, a valve core cover 130, a valve core 140, a guide rod 150, and a pilot valve plug 90. The electromagnetic assembly 120 is mounted on the valve body 50, the valve core cover 130 is mounted on the electromagnetic assembly 120, the valve core 140 is movably mounted on the valve core cover 130, the guide rod 150 is connected to the valve core 140, and the pilot valve plug 90 is connected to the guide rod 150. When the electromagnetic assembly 120 is energized, the valve core 140 generates magnetism and attracts the valve body 50. When the valve core 140 moves, the movement of the relief valve body 30 is controlled by the guide rod 150 and the pilot valve plug 90.

[0180] It is understood that the valve body 50 and the valve core 140 can also be made of a magnetic material. For example, the valve body 50 and the valve core 140 can be made of metal iron. Thus, when the electromagnetic assembly 120 is energized, the valve core 140 can generate magnetism to attract the valve body 50, thereby allowing the valve core 140 to move toward the valve body 50. The valve core 140 drives the guide rod 150 and the pilot valve plug 90 to move synchronously, thereby causing the pilot valve plug 90 to close the second overflow channel 84 and achieve fluid flow regulation.

[0181] The valve core cover 130 can fix the relative position of the electromagnetic assembly 120 and the valve core 140 and limit the movement direction of the valve core 140. The valve core cover 130 can be made of a magnetic material, for example, the valve core cover 130 can be made of metal iron. In this way, the valve core cover 130 will also generate magnetism under the action of the electromagnetic assembly 120. The valve core cover 130 contacts the valve core 140, and the magnetic force between the valve core 140 and the valve body 50 is stronger.

[0182] The control valve 60 configured in this way can adjust the fluid flow of the second overflow channel 84 by electromagnetic induction. The electromagnetic induction method is accurate and fast, and can ensure the adjustment performance of the adjustment module 1000.

[0183] According to some embodiments of the present application, as shown in Figures 19-24, the electromagnetic assembly 120 includes an insulating bracket 121 and a magnetic cover 123. The outer wall of the insulating bracket 121 is provided with a coil slot 1211. The magnetic cover 123 is mounted on the insulating bracket 121 and covers the coil slot 1211. One end of the insulating bracket 121 is configured with at least one anti-rotation positioning post 1213. The magnetic cover 123 is provided with at least one anti-rotation positioning hole 1231. The anti-rotation positioning post 1213 passes through the anti-rotation positioning hole 1231. The portion of the anti-rotation positioning post 1213 extending out of the anti-rotation positioning hole 1231 is configured with an axial positioning portion 1214, which stops the magnetic cover 123. The cooperation between the at least one anti-rotation positioning post 1213 and the at least one anti-rotation positioning hole 1231 allows the insulating bracket 121 and the magnetic cover 123 to be circumferentially restrained, thereby preventing relative rotation between the insulating bracket 121 and the magnetic cover 123, further preventing the electromagnetic assembly 120 from shifting after installation. By setting the axial positioning portion 1214, the axial stop of the magnetic cover 123 and the insulating bracket 121 can be further coordinated, the axial movement of the insulating bracket 121 relative to the magnetic cover 123 can be avoided, and the position stability of the insulating bracket 121 and the coil 122 can be further ensured, thereby improving the overall stability of the adjustment module 1000 and preventing the control valve 60 from rotating to cause radial and axial displacement when performing vibration reduction work, thereby preventing the electromagnetic force fluctuation.

[0184] According to an optional embodiment of the present application, the axial positioning portion 1214 is formed integrally with the anti-rotation positioning column 1213. It can be understood that the anti-rotation positioning column 1213 set up in this way can be multi-purpose in one body. On the one hand, it can prevent rotation, and on the other hand, it can prevent axial movement, thereby simplifying the structure of the electromagnetic assembly 120 and achieving a good positioning effect. Moreover, there are many ways of integral molding. The axial positioning portion 1214 can be formed on the anti-rotation positioning column 1213 by hot melting, or it can be formed on the anti-rotation positioning column 1213 by welding or riveting. Among them, the axial positioning portion 1214 can be configured as a cylinder with a cross-sectional area larger than the cross-sectional area of ​​the anti-rotation positioning column 1213. The axial positioning portion 1214 can also be configured as a polygon with a rectangular or other cross-sectional shape.

[0185] Optionally, as shown in Figures 19-24, multiple anti-rotation positioning posts 1213 are provided and spaced apart along the circumference of the insulating support 121, multiple anti-rotation positioning holes 1231 are provided and spaced apart along the circumference of the magnetic shield 123, and multiple anti-rotation positioning posts 1213 pass through the multiple anti-rotation positioning holes 1231 in a one-to-one correspondence. By coordinating the multiple anti-rotation positioning posts 1213 and the multiple anti-rotation positioning holes 1231 in a one-to-one correspondence, the magnetic shield 123 and the insulating support 121 can be better positioned, ensuring the stable position of the insulating support 121 and the coil 122, and preventing the coil 122 from rotating and causing radial displacement when the control valve 60 is performing vibration reduction operation, thereby preventing electromagnetic force fluctuations. For example, the number of anti-rotation positioning holes 1231 and the number of anti-rotation positioning posts 1213 can both be two, and the number of anti-rotation positioning holes 1231 and the number of anti-rotation positioning posts 1213 can be asymmetrically distributed. For another example, the number of anti-rotation positioning holes 1231 and the number of anti-rotation positioning posts 1213 can both be three.

[0186] As shown in Figures 19-21 , multiple anti-rotation positioning posts 1213 are arranged at equal intervals along the circumference of the insulating bracket 121, and multiple anti-rotation positioning holes 1231 are arranged at equal intervals along the circumference of the magnetic conductive cover 123. The circumferentially equal spacing of the multiple anti-rotation positioning posts 1213 and the multiple anti-rotation positioning holes 1231 can reduce installation difficulty and provide a better anti-rotation effect. For example, there can be three anti-rotation positioning holes 1231 and three anti-rotation positioning posts 1213, with the three anti-rotation positioning holes 1231 and the three anti-rotation positioning posts 1213 evenly distributed circumferentially.

[0187] Specifically, as shown in Figures 19-21 , the cross-sections of the anti-rotation positioning post 1213 and the cross-sections of the anti-rotation positioning hole 1231 are circular, matching each other. The circular cross-sections of the anti-rotation positioning post 1213 and the anti-rotation positioning hole 1231 make them easier to fit together, reducing the difficulty of aligning the anti-rotation positioning post 1213 and the anti-rotation positioning hole 1231.

[0188] According to some specific embodiments of the present application, as shown in Figures 19 to 24, the electromagnetic assembly 120 includes an insulating bracket 121, a coil 122 and a magnetic cover 123. The insulating bracket 121 is sleeved on the valve core cover 130, and the outer wall of the insulating bracket 121 is provided with a coil groove 1211, the coil 122 is wound in the coil groove 1211, the magnetic cover 123 is installed on the valve body 50, and the magnetic cover 123 covers the coil 122.

[0189] Insulating bracket 121 can be made of an insulating material and is used to position and secure coil 122 and the conductor. Coil 122 is a copper wire, and the conductor includes an insulating sheath and a metal conductive member within the insulating sheath. The presence of coil 122 generates a more stable and reliable magnetic field, and connecting coil 122 to an external power source via a conductor reduces the risk of electric shock, enhancing the safety of the shock absorber.

[0190] The magnetic cover 123 can be covered on the outside of the insulating bracket 121 and the coil 122, and the magnetic cover 123 is connected to the valve body 50, so that the magnetic cover 123 can limit the insulating bracket 121 and the coil 122, and can ensure that the position of the insulating bracket 121 and the coil 122 relative to the valve body 50 is stable. Moreover, the magnetic cover 123 has a magnetic conductive effect, which can further enhance the effect of electromagnetic induction.

[0191] Furthermore, as shown in Figures 19 to 24, the insulating bracket 121 (for example, one end of the insulating bracket 121) is constructed with a wire post 1212, and the magnetic cover 123 is provided with an avoidance hole 1233. The wire post 1212 extends out of the magnetic cover 123 from the avoidance hole 1233, and the wire post 1212 is provided with a wire hole for the coil 122 to extend out. The wire is used to connect to the coil 122, and the wire hole in the wire post 1212 allows the wire to pass through, thereby guiding and restricting the direction of the wire. The avoidance hole 1233 of the magnetic cover 123 allows the wire post 1212 to pass through smoothly, and the wire post 1212 and the avoidance hole 1233 can play a limiting role. After the magnetic cover 123 is installed on the valve body 50, the magnetic cover 123 can limit the insulating bracket 121 through the cooperation of the wire post 1212 and the avoidance hole 1233.

[0192] 19 , there are at least two wire holes, and the at least two wire holes extend from both ends of the supply coil 122. The at least two wire holes can be provided by wires extending from different ends of the supply coil 122, thereby preventing the wires from being mixed up and better confining the wires.

[0193] Specifically, as shown in Figure 19, the wire post 1212 extends along the circumference of the insulating support 121, and at least two wire holes are arranged along the circumference of the insulating support 121. The wire post 1212 is generally arc-shaped and is arranged around the central axis of the insulating support 121. The at least two wire holes provided in this manner can better allow the corresponding wires to pass through, which can help guide the direction of the wires.

[0194] Optionally, as shown in Figures 19-24, at least one anti-rotation positioning post 1213 is configured on the side of the insulating bracket 121 facing away from the valve body 50. The magnetic cover 123 is provided with at least one anti-rotation positioning hole 1231. The anti-rotation positioning post 1213 passes through the anti-rotation positioning hole 1231. The portion of the anti-rotation positioning post 1213 extending from the anti-rotation positioning hole 1231 is deformed to form an axial positioning portion 1214, and the magnetic cover 123 is stopped by the axial positioning portion 1214. Optionally, the axial positioning portion 1214 may be hot melt adhesive, which engages with the axial stop of the magnetic cover 123 by hot melting.

[0195] The cooperation of at least one anti-rotation positioning post 1213 and at least one anti-rotation positioning hole 1231 can limit the circumferential position of the insulating bracket 121 and the magnetic cover 123 to each other, thereby preventing relative rotation between the two and further preventing the position of the electromagnetic assembly 120 from changing after installation. By providing an axial positioning portion 1214, the axial stop of the magnetic cover 123 and the insulating bracket 121 can be further coordinated, thereby preventing axial movement of the insulating bracket 121 relative to the magnetic cover 123, further ensuring the stability of the position of the insulating bracket 121 and the coil 122, thereby improving the overall stability of the regulating module 1000 and preventing the problem of electromagnetic force fluctuation caused by the rotation of the coil 122 when the control valve 60 is performing vibration reduction operation, causing radial and axial displacement.

[0196] According to an optional embodiment of the present application, the axial positioning portion 1214 is formed integrally with the anti-rotation positioning column 1213. It can be understood that the anti-rotation positioning column 1213 set up in this way can be multi-purpose in one body. On the one hand, it can prevent rotation, and on the other hand, it can prevent axial movement, thereby simplifying the structure of the electromagnetic assembly 120 and achieving a good positioning effect. Moreover, there are many ways of integral molding. The axial positioning portion 1214 can be formed on the anti-rotation positioning column 1213 by hot melting, or by welding or riveting. Among them, the axial positioning portion 1214 can be configured as a cylinder with a cross-sectional area larger than the cross-sectional area of ​​the anti-rotation positioning column 1213. The axial positioning portion 1214 can also be configured as a polygon with a rectangular or other polygonal cross-section.

[0197] As shown in Figures 19 to 24, there are multiple anti-rotation positioning posts 1213, and the multiple anti-rotation positioning posts 1213 are spaced apart along the circumference of the insulating bracket 121. There are multiple anti-rotation positioning holes 1231, and the multiple anti-rotation positioning holes 1231 are spaced apart along the circumference of the magnetic cover 123. The multiple anti-rotation positioning posts 1213 pass through the multiple anti-rotation positioning holes 1231 in a one-to-one correspondence. By matching the multiple anti-rotation positioning posts 1213 and the multiple anti-rotation positioning holes 1231 in a one-to-one correspondence, the magnetic cover 123 and the insulating bracket 121 can be better positioned, the position of the insulating bracket 121 and the coil 122 can be ensured to be stable, and the problem of electromagnetic force fluctuation caused by the rotation of the coil 122 and its radial displacement when the control valve 60 is performing vibration reduction operation can be prevented. For example, there can be two anti-rotation positioning holes 1231 and two anti-rotation positioning columns 1213, and the anti-rotation positioning holes 1231 and the anti-rotation positioning columns 1213 are distributed in an asymmetrical manner. For another example, there can be three anti-rotation positioning holes 1231 and three anti-rotation positioning columns 1213.

[0198] Specifically, as shown in Figures 1 and 13, a support boss 51 is constructed on the side of the valve body 50 facing the control valve 60, an insulating bracket 121 is provided on the support boss 51, and a magnetic cover 123 is sleeved on the support boss 51. The support boss 51 can support the insulating bracket 121, which can facilitate the installation of the insulating bracket 121. In addition, the magnetic cover 123 is connected to the valve body 50 by being sleeved on the support boss 51, which can reduce the difficulty of assembly of the two and can better limit the position of the insulating bracket 121 and the coil 122. As shown in Figures 13 and 14, the support boss 51 can be annular, and the main structure of the insulating bracket 121 is also annular, and the two are adapted to each other.

[0199] Furthermore, as shown in FIG1 , the control valve 60 further includes a magnetic isolation ring 160. The magnetic isolation ring 160 is disposed around the valve core 140 and is located between the valve core cover 130 and the valve body 50. The provision of the magnetic isolation ring 160 prevents the magnetic field generated by the coil 122 from affecting the valve body 50 when the coil 122 is energized. This allows the magnetic field generated by the coil 122 to primarily act on the valve core 140, thereby increasing the magnetic force generated between the valve core 140 and the valve body 50.

[0200] As shown in Figures 24, 28, and 29, one of the magnetic isolation ring 160 and the valve core cover 130 is provided with an inner assembly ring 1232, and the other is provided with an outer assembly ring 161. The outer assembly ring 161 is sleeved over the inner assembly ring 1232 and has an interference fit with the inner assembly ring 1232. For example, the magnetic isolation ring 160 is provided with the outer assembly ring 161, and the valve core cover 130 is provided with the inner assembly ring 1232. The arrangement of the inner assembly ring 1232 and the outer assembly ring 161 effectively assembles the magnetic isolation ring 160 and the valve core cover 130 into a single unit, enhancing their reliability and ensuring a simple and reliable interference fit. Furthermore, the inner and outer circumferential surfaces of the magnetic isolation ring 160 and the valve core cover 130 can be coplanar, simplifying the structure of the control valve 60 and preventing interference with the movement of the valve core 140.

[0201] As shown in Figures 1, 13, 14, 28 and 29, a support ring groove 52 is provided on the side of the valve body 50 facing the magnetic isolation ring 160, and a support ring platform 162 is constructed on the side of the magnetic isolation ring 160 facing the valve body 50. The support ring platform 162 is matched with the support ring groove 52, and the support ring platform 162 and the support ring groove 52 are interference fit.

[0202] Through the cooperation of the support ring platform 162 and the support ring groove 52, the valve body 50 can effectively support the magnetic isolation ring 160, thereby further supporting the valve core cover 130, and avoiding radial movement of the magnetic isolation ring 160 relative to the valve body 50. The interference fit between the two is simple and reliable, and the installation method of the control valve 60 and the valve body 50 set in this way is simple and reliable.

[0203] As shown in Figures 1, 13, 25 and 30, the inner wall surface of the valve core cover 130 is constructed with a guide rod groove 131, and a first guide sleeve 132 is provided in the guide rod groove 131. The valve body 50 is constructed with a guide rod hole 53, and a second guide sleeve 54 is provided in the guide rod hole 53. The guide rod 150 can be movably matched with the first guide sleeve 132 and the second guide sleeve 54.

[0204] It can be understood that the valve core cover 130 is provided with a first guide sleeve 132 by providing a guide rod groove 131, and the valve body 50 is provided with a second guide sleeve 54 by providing a guide rod hole 53. The first guide sleeve 132 and the second guide sleeve 54 are spaced apart in the up and down directions, and the guide rod 150 can be passed through the first guide sleeve 132 and the second guide sleeve 54. In this way, the first guide sleeve 132 and the second guide sleeve 54 can solve the installation problem of the guide rod 150, and both can allow the guide rod 150 to move up and down, and the first guide sleeve 132 and the second guide sleeve 54 can play a role in constraining the moving direction of the guide rod 150, thereby avoiding the problem of deflection of the guide rod 150 during the up and down movement, improving the control stability of the control valve 60, and further improving the stability of the pilot valve plug 90 to adjust the fluid flow in the second overflow channel 84. The first guide sleeve 132 and the guide rod groove 131 may be interference fit, and the second guide sleeve 54 and the guide rod hole 53 may be interference fit, so that the installation stability of the first guide sleeve 132 and the second guide sleeve 54 can be ensured.

[0205] As shown in Figures 1 and 30 , at least one first flow groove 133 is provided on the outer side of the first guide sleeve 132, which mates with the valve core housing 130. The first flow groove 133 has two ends extending through the axial ends of the first guide sleeve 132. At least one second flow groove is provided on the outer side of the second guide sleeve 54, which mates with the valve body 50. The second flow groove 133 allows fluid to flow between the space above and below the first guide sleeve 132, reducing resistance to movement of the guide rod 150 and valve core 140 and improving the operational precision of the control valve 60. Furthermore, the second flow groove allows fluid to flow between the space above and below the second guide sleeve 54, reducing resistance to movement of the guide rod 150 and valve core 140 and improving the operational precision of the control valve 60.

[0206] Specifically, there are multiple first flow grooves 133, and the multiple first flow grooves 133 are spaced apart along the circumference of the first guide sleeve 132. There are multiple second flow grooves, and the multiple second flow grooves are spaced apart along the circumference of the second guide sleeve 54. It can be understood that by providing multiple first flow grooves 133 and multiple second flow grooves, fluid can be allowed to flow circumferentially through the multiple corresponding flow grooves, which can improve the uniformity of fluid flow and avoid the problem of uneven fluid flow.

[0207] As shown in FIG30 , the outer circumference of the first guide sleeve 132 is configured as a non-circular surface and is composed of alternating arc surfaces and oblique planes. Two adjacent arc surfaces can be interference-fitted with the corresponding valve core cover 130, while the oblique planes are spaced apart from the inner wall of the guide rod groove 131 to form a first flow groove 133. Multiple oblique planes can form multiple first flow grooves 133. The first guide sleeve 132 thus configured is simple in structure and easy to install. The second guide sleeve 54 and the first guide sleeve 132 can have the same structure.

[0208] Optionally, as shown in Figures 1 and 25-27, the control valve 60 further includes a first elastic member 144 and a second elastic member 145. A first recessed groove 134 is formed on the inner wall of the valve core housing 130 facing the valve core 140, and a second recessed groove 141 is formed on the end of the valve core 140 facing the valve core housing 130. The ends of the first elastic member 144 respectively engage with the first recessed groove 134 and the second recessed groove 141. A third recessed groove 142 is formed on the end of the valve core 140 facing the valve body 50. One end of the second elastic member 145 engages with the third recessed groove 142, while the other end abuts against the second guide sleeve 54. The first elastic member 144 and the second elastic member 145 jointly apply elastic force to the valve core 140, thereby maintaining the stable position of the valve core 140.

[0209] By providing the first recessed groove 134 and the second recessed groove 141, the first elastic member 144 can be effectively limited, and corresponding abutment positions can be provided at both ends of the first elastic member 144. By providing the third recessed groove 142, the second elastic member 145 can be effectively limited, and a corresponding abutment position can be provided at one end of the second elastic member 145. Moreover, by providing the above three recessed grooves, the length of the control valve 60 in the vertical direction can be effectively shortened, which can facilitate the miniaturization of the control valve 60 and avoid the control valve 60 being too large. Specifically, by providing the first elastic member 144 and the second elastic member 145 on the upper and lower sides of the valve core 140, the valve core 140 can be suspended between the valve core cover 130 and the valve body 50, thereby ensuring the control accuracy of the control valve 60.

[0210] Optionally, as shown in Figures 26 and 27, the valve core 140 is provided with at least one through hole 143, the two ends of which respectively pass through the two ends of the valve core 140. The through hole 143 can function to connect the upper space of the valve core 140 with the lower space of the valve core 140, allowing fluid to flow between the upper space of the valve core 140 and the lower space of the valve core 140. This can reduce the resistance when the valve core 140 moves, and can improve the accuracy of the operation of the control valve 60.

[0211] As shown in Figures 1, 13, and 14, a limiting structure 55 is configured on the side of the valve body 50 facing the valve core 140. The two extreme positions of the valve core 140 in its movement direction are respectively defined by the limiting structure 55 and the valve core cover 130. In other words, the limiting structure 55 and the valve core cover 130 can limit the valve core 140 in the vertical direction, thereby effectively controlling the extreme movement positions of the valve core 140, and further controlling the extreme movement positions of the pilot valve plug 90, thereby regulating the fluid flow in the second flow path 80 and improving the control capability of the control valve 60.

[0212] Optionally, as shown in Figures 1 and 16, the pilot valve plug 90 is configured with a mounting ring 94, which is sleeved on the guide rod 150 and has a clearance fit with the guide rod 150. In other words, the pilot valve plug 90 is provided with a mounting ring 94 on the upper side of the valve plate 91. The mounting ring 94 serves to mount the guide rod 150. By adopting a clearance fit, the installation of the pilot valve plug 90 and the guide rod 150 can be facilitated, thereby improving the assembly efficiency of the control valve 60.

[0213] According to a specific embodiment of the present application, as shown in Figures 2-7 , a mounting ring 13 is constructed on the side of the relief valve seat 10 facing away from the relief valve body 30. The outer peripheral surface of the mounting ring 13 is provided with a first sealing groove 14 extending along its circumference. The first sealing groove 14 is provided with a first sealing ring 15, which seals the gap between the mounting ring 13 and the inner cylinder 171 of the shock absorber. The mounting ring 13 can be used to install the inner cylinder 171, while the first sealing ring 15 can provide a seal between the inner cylinder 171 and the mounting ring 13. The first sealing groove 14 can be used to mount the first sealing ring 15. With this configuration, the relief valve seat 10 can effectively connect with the inner cylinder 171 and ensure a tight seal between the two.

[0214] As shown in Figures 2-5 , the outer circumference of the valve body 50 is provided with a second sealing groove 56, which is equipped with a second sealing ring 57. This second sealing ring 57 seals the gap between the valve body 50 and the shock absorber's outer tube 172. The provision of the second sealing ring 57 seals the valve body 50 and the outer tube 172, and the second sealing groove 56 serves as a mounting for the second sealing ring 57. This configuration allows the valve body 50 to effectively interface with the outer tube 172, ensuring a tight seal between the two.

[0215] According to some embodiments of the present application, a control valve assembly includes the electromagnetic assembly 120, valve body 50, coil 122, valve core cover 130, valve core 140, guide rod 150, and pilot valve plug 90 of the above-described embodiment. The insulating bracket 121 and magnetic cover 123 are mounted on the valve body 50. The coil 122 is wound in the coil groove 1211 of the insulating bracket 121 and is covered by the magnetic cover 123. The valve core cover 130 is mounted on the insulating bracket 121. The valve core 140 is movably mounted on the valve core cover 130. The guide rod 150 is connected to the valve core 140. The pilot valve plug 90 is connected to the guide rod 150. When the coil 122 is energized, the valve core 140 generates magnetism and attracts the valve body 50.

[0216] According to the second embodiment of the present application, the shock absorber 2000 includes at least one adjustment module 1000 for the shock absorber 2000 and a cylinder 170, wherein the cylinder 170 defines a compression chamber and a recovery chamber. The adjustment module 1000 is connected to the cylinder 170, and the adjustment module 1000 is respectively connected to the compression chamber and the recovery chamber to control the flow of fluid between the compression chamber and the recovery chamber. The shock absorber 2000 using the above-mentioned adjustment module 1000 can stabilize the movement of the relief valve body 30, and can achieve rapid reset of the relief valve body 30, small fluctuation of the electromagnetic force of the shock absorber, and can improve the vibration reduction effect and stability of the shock absorber 2000.

[0217] According to some embodiments of the present application, as shown in Figures 2-5, the cylinder 170 includes an outer cylinder 172 and an inner cylinder 171 disposed within the outer cylinder 172, and the adjustment module 1000 is externally disposed outside the outer cylinder 172. By externally disposing the adjustment module 1000, it is possible to avoid occupying the internal space of the outer cylinder 172 by the adjustment module 1000, thereby facilitating a miniaturized design of the cylinder 170 and satisfying the volume requirements of the compression chamber and the recovery chamber.

[0218] Optionally, there are at least two regulating modules 1000, wherein one regulating module 1000 regulates the fluid flow from the compression chamber to the recovery chamber, and the other regulating module 1000 regulates the fluid flow from the recovery chamber to the compression chamber. For example, there may be two regulating modules 1000, each regulating flow in two directions. One of the two regulating modules 1000 is connected to the compression chamber through the first communicating hole 11 and to the recovery chamber through the second communicating hole 12, and the other of the two regulating modules 1000 is connected to the recovery chamber through the first communicating hole 11 and to the compression chamber through the second communicating hole 12. The two regulating modules 1000 thus configured can achieve bidirectional regulation, thereby better achieving regulation of the fluid in the shock absorber 2000.

[0219] A vehicle 3000 according to an embodiment of the third aspect of the present application includes a shock absorber 2000 of any of the above embodiments, as shown in FIG31 .

[0220] As non-limiting examples, the present application provides the following several embodiments.

[0221] According to an embodiment of one aspect of the present application, an adjustment module 1000 for a shock absorber 2000 is provided, wherein the adjustment module 1000 is respectively connected to the compression chamber and the recovery chamber of the shock absorber 2000, and the adjustment module 1000 includes: a relief valve seat 10; a relief valve fixing sleeve 20, wherein the relief valve fixing sleeve 20 is located on one side of the relief valve seat 10; a relief valve body 30, wherein the relief valve body 30 is movably arranged on the relief valve fixing sleeve 20, and the relief valve body 30 adjusts the fluid flow between the compression chamber and the recovery chamber by moving closer to and away from the relief valve seat 10; and an relief elastic member 40, wherein the relief elastic member 40 is arranged between the relief valve fixing sleeve 20 and the relief valve body 30, and the relief elastic member 40 provides an elastic force to push the relief valve body 30 toward the relief valve seat 10.

[0222] Therefore, by arranging the overflow elastic member between the overflow valve fixing sleeve and the overflow valve body, the problem in the prior art that the overflow valve body is slow to reset when it moves toward the direction close to the overflow valve seat, and the problem that the overflow valve body is unstable in movement and the fluid flow is unstable when it moves toward the direction away from the overflow valve seat is solved. The movement of the overflow valve body can be made stable, and the effect of rapid reset of the overflow valve body can be achieved.

[0223] In some embodiments, the overflow elastic member 40 is a spring, and the overflow elastic member 40 is disposed in the overflow valve fixing sleeve 20 . One end of the overflow elastic member 40 abuts against the overflow valve fixing sleeve 20 and the other end abuts against the overflow valve body 30 .

[0224] In some embodiments, the outer diameter of the end of the overflow elastic member 40 that abuts against the overflow valve fixing sleeve 20 is larger than the outer diameter of the end of the overflow elastic member 40 that abuts against the overflow valve body 30 .

[0225] In some embodiments, it also includes: a valve body 50, the overflow valve fixing sleeve 20 is installed in the valve body 50, and at least a portion of the overflow valve seat 10 is installed in the valve body 50; and a control valve 60, the control valve 60 controls the movement of the overflow valve body 30 to approach and move away from the overflow valve seat 10.

[0226] In some embodiments, the overflow valve seat 10 is provided with at least one first connecting hole 11 and at least one second connecting hole 12, one of the compression chamber and the restoration chamber is connected to the first connecting hole 11, and the other of the compression chamber and the restoration chamber is connected to the second connecting hole 12; the regulating module 1000 is constructed with a first flow path 70 and a second flow path 80, and the flow rate of the first flow path 70 is different from the flow rate of the second flow path 80; the regulating module 1000 controls the first connecting hole 11 and the second connecting hole 12 selectively through at least one of the first flow path 70 and the second flow path 80.

[0227] In some embodiments, the first communicating hole 11 is provided at the center of the overflow valve seat 10 , and there are multiple second communicating holes 12 , which are spaced apart along the circumference of the overflow valve seat 10 and surround the first communicating hole 11 .

[0228] In some embodiments, the gap between the relief valve body 30 and the relief valve seat 10 forms the first flow path 70 ; the relief valve body 30 adjusts the flow of the first flow path 70 by moving closer to and away from the relief valve seat 10 .

[0229] In some embodiments, the second flow path 80 passes through the relief valve body 30 and the relief valve fixing sleeve 20 ; the control valve 60 adjusts the flow of the second flow path 80 .

[0230] In some embodiments, the second flow path 80 includes: an overflow chamber 81, the overflow valve body 30 and the overflow valve fixing sleeve 20 jointly define the overflow chamber 81, and the overflow elastic member 40 is arranged in the overflow chamber 81; a pilot chamber 82, the overflow valve fixing sleeve 20 and the valve body 50 jointly define the pilot chamber 82; a first overflow channel 83 and a second overflow channel 84, the first overflow channel 83 is provided in the overflow valve body 30 and is respectively communicated with the first connecting hole 11 and the overflow chamber 81, the second overflow channel 84 is provided in the overflow valve body 30 and is respectively communicated with the overflow chamber 81 and the pilot chamber 82; and a third overflow channel 85, the third overflow channel 85 is provided in the overflow valve fixing sleeve 20 and is respectively communicated with the pilot chamber 82 and the second connecting hole 12; wherein, the control valve 60 adjusts the flow of the second overflow channel 84.

[0231] In some embodiments, the minimum cross-sectional area of ​​the second overflow channel 84 is greater than the minimum cross-sectional area of ​​the first overflow channel 83 .

[0232] In some embodiments, a guide column 31 is constructed on the side of the overflow valve body 30 facing the overflow valve fixing sleeve 20, the overflow elastic member 40 is arranged around the guide column 31, the overflow valve fixing sleeve 20 is provided with a guide hole 21, the guide column 31 is movably engaged with the guide hole 21, and the second overflow channel 84 is provided on the guide column 31; the control valve 60 includes a pilot valve plug 90, and the pilot valve plug 90 extends into the pilot chamber 82. The control valve 60 adjusts the flow of the second overflow channel 84 by controlling the pilot valve plug 90 to approach and move away from the guide column 31.

[0233] In some embodiments, the second overflow channel 84 includes: at least one radial segment 841, which extends in a direction perpendicular to the axial direction of the guide column 31, and one end of the radial segment 841 is connected to the overflow chamber 81; and an axial segment 842, which extends in the axial direction of the guide column 31, and one end of the axial segment 842 is connected to the other end of the radial segment 841, and the other end of the axial segment 842 is connected to the pilot chamber 82.

[0234] In some embodiments, there are multiple radial segments 841 and the radial segments 841 are spaced apart along the circumference of the guide pillar 31 .

[0235] In some embodiments, the pilot valve plug 90 includes: a valve plate 91; a valve head 92, wherein the valve head 92 is arranged on the side of the valve plate 91 facing the guide column 31, and the valve head 92 adjusts the flow of the second overflow channel 84 by extending into and away from the second overflow channel 84; and a guide ring 93, wherein the guide ring 93 is arranged on the side of the valve plate 91 facing the overflow valve fixing sleeve 20 and is arranged around the valve head 92.

[0236] In some embodiments, a cross-sectional area of ​​an end of the valve head 92 adjacent to the guide post 31 is smaller than a cross-sectional area of ​​an end of the valve head 92 away from the guide post 31 .

[0237] In some embodiments, the third overflow channel 85 is at least one and is a groove provided on the outer side of the overflow valve fixing sleeve 20 that cooperates with the valve body 50, and the two ends of the third overflow channel 85 respectively pass through the axial ends of the overflow valve fixing sleeve 20.

[0238] In some embodiments, the surface of the overflow valve fixing sleeve 20 facing the pilot cavity 82 is provided with a guide ring platform 22, the guide ring platform 22 is arranged around the second overflow channel 84, and the outer diameter of one end of the guide ring platform 22 extending into the interior of the pilot cavity 82 is smaller than the outer diameter of the other end; a guide ring groove 23, the guide ring groove 23 is arranged around the guide ring platform 22; and at least one guide branch groove 24, one end of the guide branch groove 24 is connected to the guide ring groove 23 and the other end is connected to the third overflow channel 85.

[0239] In some embodiments, the third overflow channel 85 is multiple and is arranged at intervals along the circumference of the overflow valve fixing sleeve 20, and the guide branch groove 24 is multiple and is arranged at intervals along the circumference of the overflow valve fixing sleeve 20. One end of each guide branch groove 24 is connected to the guide ring groove 23 and the other end is connected to the corresponding third overflow channel 85.

[0240] In some embodiments, an overflow seal 100 is provided between the overflow valve fixing sleeve 20 and the overflow valve body 30, and a deformation groove 101 is constructed on the side of the overflow seal 100 facing the overflow chamber 81, and the deformation groove 101 is connected to the overflow chamber 81; the overflow seal 100 is constructed so that the pressure exerted on the overflow seal 100 after the fluid in the overflow chamber 81 flows into the deformation groove 101 causes the overflow seal 100 to open toward at least one of the overflow valve fixing sleeve 20 and the overflow valve body 30.

[0241] In some embodiments, the overflow seal 100 is configured in an annular shape and is located between the outer circumferential surface of the overflow valve body 30 and the inner circumferential surface of the overflow valve fixing sleeve 20 , and the deformation groove 101 extends along the circumference of the overflow seal 100 .

[0242] In some embodiments, the distance between the outer circumference and the inner circumference of the overflow seal 100 adjacent to the overflow cavity 81 is greater than the distance between the outer circumference and the inner circumference of the overflow seal 100 away from the overflow cavity 81 .

[0243] In some embodiments, at least one of the inner circumferential surface of the relief valve fixing sleeve 20 and the outer circumferential surface of the relief valve body 30 is provided with an overflow sealing groove 32 , and the overflow seal 100 is provided in the overflow sealing groove 32 .

[0244] In some embodiments, the valve body 50 further includes: a relief valve distance adjustment ring 110 , wherein the relief valve distance adjustment ring 110 is disposed in the valve body 50 and supported between the relief valve seat 10 and the relief valve fixing sleeve 20 .

[0245] In some embodiments, the overflow valve seat 10 is threadedly engaged with the valve body 50. The overflow valve seat 10 adjusts the deformation of the overflow valve from the adjusting ring 110 by adjusting the degree of tightening with the valve body 50, so as to adjust the distance from the overflow valve fixing sleeve 20 and the overflow valve body 30 to the overflow valve seat 10.

[0246] In some embodiments, the height of the relief valve from the adjustment ring 110 along the axial direction thereof is 2.5 mm to 5 mm.

[0247] In some embodiments, the cross-section of the overflow valve distance adjusting ring 110 parallel to its axial direction is configured as an arc or a straight line, and the distance between one end of the overflow valve distance adjusting ring 110 adjacent to the overflow valve seat 10 and the central axis of the overflow valve distance adjusting ring 110 is greater than the distance between one end of the overflow valve distance adjusting ring 110 adjacent to the overflow valve fixing sleeve 20 and the central axis of the overflow valve distance adjusting ring 110.

[0248] In some embodiments, a first abutting slope 111 is constructed at one end of the relief valve distance adjusting ring 110 facing the relief valve fixing sleeve 20, and the distance between the first abutting slope 111 and the central axis of the relief valve distance adjusting ring 110 gradually increases from the relief valve seat 10 to the relief valve fixing sleeve 20; a second abutting slope 25 is constructed at one end of the relief valve fixing sleeve 20 facing the relief valve distance adjusting ring 110, and the distance between the second abutting slope 25 and the central axis of the relief valve fixing sleeve 20 gradually increases from the relief valve seat 10 to the relief valve fixing sleeve 20; the first abutting slope 111 cooperates with the second abutting slope 25.

[0249] In some embodiments, a stop ring 58 is configured on the inner wall surface of the valve body 50 , and the stop ring 58 abuts against a side of the relief valve fixing sleeve 20 facing away from the relief valve seat 10 .

[0250] In some embodiments, the relief valve fixing sleeve 20 and the valve body 50 are interference fit.

[0251] In some embodiments, the control valve 60 includes: an electromagnetic assembly 120, which is installed on the valve body 50; a valve core cover 130, which is installed on the electromagnetic assembly 120; a valve core 140, which is movably installed on the valve core cover 130; a guide rod 150, which is connected to the valve core 140; and a pilot valve plug 90, which is connected to the guide rod 150; wherein, when the electromagnetic assembly 120 is energized, the valve core 140 generates magnetism and attracts the valve body 50. When the valve core 140 moves, the movement of the overflow valve body 30 is controlled by the guide rod 150 and the pilot valve plug 90.

[0252] In some embodiments, the electromagnetic assembly 120 includes: an insulating bracket 121, which is mounted on the valve core cover 130 and has a coil groove 1211 on the outer wall; a coil 122, which is wound around the coil groove 1211; and a magnetic cover 123, which is installed on the valve body 50 and covers the coil 122.

[0253] In some embodiments, the insulating bracket 121 is constructed with a wire post 1212, the magnetic cover 123 is provided with an avoidance hole 1233, the wire post 1212 extends out of the magnetic cover 123 from the avoidance hole 1233, and the wire post 1212 is provided with a wire hole for the coil 122 to extend out.

[0254] In some embodiments, at least one anti-rotation positioning column 1213 is constructed on the side of the insulating bracket 121 facing away from the valve body 50, and the magnetic cover 123 is provided with at least one anti-rotation positioning hole 1231, and the anti-rotation positioning column 1213 passes through the anti-rotation positioning hole 1231; the part of the anti-rotation positioning column 1213 extending out of the anti-rotation positioning hole 1231 is constructed with an axial positioning portion 1214 through deformation, and the magnetic cover 123 is stopped by the axial positioning portion 1214.

[0255] In some embodiments, the anti-rotation positioning columns 1213 are multiple and are arranged at circumferential intervals along the insulating bracket 121, the anti-rotation positioning holes 1231 are multiple and are arranged at circumferential intervals along the magnetic cover 123, and the multiple anti-rotation positioning columns 1213 pass through the multiple anti-rotation positioning holes 1231 one by one.

[0256] In some embodiments, a support boss 51 is constructed on a side of the valve body 50 facing the control valve 60 , the insulating bracket 121 is disposed on the support boss 51 , and the magnetic conductive cover 123 is sleeved on the support boss 51 .

[0257] In some embodiments, the control valve 60 further includes a magnetic isolation ring 160 , which is disposed around the valve core 140 and located between the valve core cover 130 and the valve body 50 .

[0258] In some embodiments, one of the magnetic isolation ring 160 and the valve core cover 130 is provided with an assembly inner ring 1232 and the other is provided with an assembly outer ring 161 , and the assembly outer ring 161 is sleeved on the assembly inner ring 1232 and has an interference fit with the assembly inner ring 1232 .

[0259] In some embodiments, a support ring groove 52 is provided on the side of the valve body 50 facing the magnetic isolation ring 160 , and a support ring platform 162 is constructed on the side of the magnetic isolation ring 160 facing the valve body 50 . The support ring platform 162 is matched with the support ring groove 52 and has an interference fit with the support ring groove 52 .

[0260] In some embodiments, the inner wall surface of the valve core cover 130 is constructed with a guide rod groove 131, and a first guide sleeve 132 is provided in the guide rod groove 131; the valve body 50 is constructed with a guide rod hole 53, and a second guide sleeve 54 is provided in the guide rod hole 53; the guide rod 150 is movably matched with the first guide sleeve 132 and the second guide sleeve 54.

[0261] In some embodiments, the outer side surface of the first guide sleeve 132 that cooperates with the valve core cover 130 is provided with at least one first flow groove 133, and the two ends of the first flow groove 133 respectively pass through the two axial ends of the first guide sleeve 132; the outer side surface of the second guide sleeve 54 that cooperates with the valve body 50 is provided with at least one second flow groove, and the two ends of the second flow groove respectively pass through the two axial ends of the second guide sleeve 54.

[0262] In some embodiments, there are multiple first flow grooves 133 and they are spaced apart along the circumference of the first guide sleeve 132 ; there are multiple second flow grooves and they are spaced apart along the circumference of the second guide sleeve 54 .

[0263] In some embodiments, the control valve 60 also includes: a first elastic member 144, an inner wall surface of the valve core cover 130 facing the valve core 140 is configured with a first recessed groove 134, and an end of the valve core 140 facing the valve core cover 130 is configured with a second recessed groove 141, and the two ends of the first elastic member 144 are respectively matched with the first recessed groove 134 and the second recessed groove 141; and a second elastic member 145, an end of the valve core 140 facing the valve body 50 is configured with a third recessed groove 142, and one end of the second elastic member 145 is matched with the third recessed groove 142 and the other end stops at the second guide sleeve 54; wherein, the first elastic member 144 and the second elastic member 145 jointly apply elastic force to the valve core 140 to keep the position of the valve core 140 stable.

[0264] In some embodiments, the valve core 140 is provided with at least one through hole 143 , and both ends of the through hole 143 pass through both ends of the valve core 140 respectively.

[0265] In some embodiments, a limiting structure 55 is constructed on one side of the valve body 50 facing the valve core 140 ; ​​two extreme positions of the valve core 140 in its moving direction are respectively defined by the limiting structure 55 and the valve core cover 130 .

[0266] In some embodiments, the pilot valve plug 90 is configured with a mounting ring 94 . The mounting ring 94 is sleeved on the guide rod 150 and has a clearance fit with the guide rod 150 .

[0267] In some embodiments, an assembly ring 13 is constructed on the side of the overflow valve seat 10 facing away from the overflow valve body 30, and the outer peripheral surface of the assembly ring 13 is provided with a first sealing groove 14 extending along its circumference. The first sealing groove 14 is provided with a first sealing ring 15, and the first sealing ring 15 seals the gap between the assembly ring 13 and the inner cylinder 171 of the shock absorber 2000.

[0268] In some embodiments, a second sealing groove 56 is provided on the outer circumference of the valve body 50 . A second sealing ring 57 is provided in the second sealing groove 56 . The second sealing ring 57 seals the gap between the valve body 50 and the outer cylinder 172 of the shock absorber 2000 .

[0269] According to another embodiment of the present application, an overflow seal 100 for an adjusting module 1000 is provided, and the overflow seal 100 is respectively sealed with the overflow valve fixing sleeve 20 and the overflow valve body 30 of the adjusting module 1000, and a deformation groove 101 is constructed on the side of the overflow seal 100 facing the overflow chamber 81 of the adjusting module 1000, and the deformation groove 101 is connected to the overflow chamber 81; the overflow seal 100 is constructed so that the pressure exerted on the overflow seal 100 after the fluid in the overflow chamber 81 flows into the deformation groove 101 causes the overflow seal 100 to open toward at least one of the overflow valve fixing sleeve 20 and the overflow valve body 30.

[0270] Therefore, the deformation groove deforms under the action of fluid pressure, which solves the problem in the prior art that after the sealing ring has worked for a long time, the seal will wear and deform to a certain extent, and a gap will appear between the seal and the relief valve body or the relief valve fixing sleeve, resulting in poor sealing and leakage. As a result, at least one side of the deformation groove is in close contact with the corresponding relief valve fixing sleeve and the relief valve body, which can achieve a better sealing effect, can withstand greater pressure, can better and faster build pressure, and the leakage is very small.

[0271] In some embodiments, the overflow seal 100 is constructed in an annular shape and is located between the outer circumferential surface of the overflow valve body 30 and the inner circumferential surface of the overflow valve fixing sleeve 20, and the deformation groove 101 extends along the circumference of the overflow seal 100, and the width of the side of the deformation groove 101 adjacent to the overflow chamber 81 is greater than the width of the side of the deformation groove 101 away from the overflow chamber 81.

[0272] In some embodiments, the distance between the outer circumference and the inner circumference of the overflow seal 100 adjacent to the overflow cavity 81 is greater than the distance between the outer circumference and the inner circumference of the overflow seal 100 away from the overflow cavity 81 .

[0273] In some embodiments, it includes: an outer sealing ring 103, which abuts against the overflow valve fixing sleeve 20; an inner sealing ring 102, which abuts against the overflow valve body 30; and wherein the deformation groove 101 is formed between the outer sealing ring 103 and the inner sealing ring 102.

[0274] In some embodiments, the cross-section of the inner sealing ring 102 is set parallel to the central axis of the overflow seal 100; the cross-section of the outer sealing ring 103 is set obliquely relative to the central axis of the overflow seal 100, and the distance between the outer sealing ring 103 and the central axis of the overflow seal 100 gradually increases in the direction of the overflow chamber 81.

[0275] In some embodiments, the cross section of the inner sealing ring 102 parallel to the central axis of the overflow seal 100 is linear or arc-shaped; the cross section of the outer sealing ring 103 parallel to the central axis of the overflow seal 100 is linear or arc-shaped.

[0276] In some embodiments, it also includes: a bottom sealing ring 104, the outer periphery of the bottom sealing ring 104 is connected to the side of the outer sealing ring 103 facing away from the overflow chamber 81, and the inner periphery of the bottom sealing ring 104 is connected to the side of the inner sealing ring 102 facing away from the overflow chamber 81.

[0277] In some embodiments, a surface of the bottom sealing ring 104 facing away from the outer sealing ring 103 and the inner sealing ring 102 is configured as a plane perpendicular to the central axis of the overflow seal 100 .

[0278] In some embodiments, a side surface of the bottom sealing ring 104 forming the bottom of the deformation groove 101 is configured as a plane perpendicular to the central axis of the overflow seal 100 .

[0279] In some embodiments, the adjustment module 1000 is respectively connected to the compression chamber and the recovery chamber of the shock absorber 2000, and the adjustment module 1000 includes: a relief valve seat 10; a relief valve fixing sleeve 20, the relief valve fixing sleeve is located on one side of the relief valve seat 10; a relief valve body 30, the relief valve body 30 is movably arranged on the relief valve fixing sleeve 20 and together with the relief valve fixing sleeve 20 defines an relief chamber 81, the relief valve body 30 adjusts the fluid flow between the compression chamber and the recovery chamber by approaching and moving away from the relief valve seat 10; and an overflow seal 100 for the adjustment module 1000 as described above.

[0280] In some embodiments, at least one of the inner circumferential surface of the relief valve fixing sleeve 20 and the outer circumferential surface of the relief valve body 30 is provided with an overflow sealing groove 32 , and the overflow seal 100 is provided in the overflow sealing groove 32 .

[0281] In some embodiments, the overflow sealing groove 32 has a first groove wall 321 and a second groove wall 322, wherein the first groove wall 321 is located on the side of the overflow sealing groove 32 facing the overflow cavity 81, and the second groove wall 322 is located on the side of the overflow sealing groove 32 facing away from the overflow cavity 81; wherein, in a direction perpendicular to the axial direction of the overflow valve body 30, the second groove wall 322 is higher than the first groove wall 321.

[0282] In some embodiments, it also includes: a valve body 50, the overflow valve fixing sleeve 20 is installed in the valve body 50, and at least a portion of the overflow valve seat 10 is installed in the valve body 50; and a control valve 60, the control valve 60 controls the movement of the overflow valve body 30 to approach and move away from the overflow valve seat 10.

[0283] In some embodiments, the overflow valve seat 10 is provided with at least one first connecting hole 11 and at least one second connecting hole 12, one of the compression chamber and the restoration chamber is connected to the first connecting hole 11, and the other of the compression chamber and the restoration chamber is connected to the second connecting hole 12; the regulating module 1000 is constructed with a first flow path 70 and a second flow path 80, the flow rate of the first flow path 70 and the flow rate of the second flow path 80 are different, and the second flow path 80 includes the overflow chamber 81; the regulating module 1000 controls the first connecting hole 11 and the second connecting hole 12 selectively through at least one of the first flow path 70 and the second flow path 80.

[0284] In some embodiments, the gap between the relief valve body 30 and the relief valve seat 10 forms the first flow path 70 ; the relief valve body 30 adjusts the flow of the first flow path 70 by moving closer to and away from the relief valve seat 10 .

[0285] In some embodiments, the second flow path 80 also includes: a pilot chamber 82, the overflow valve fixing sleeve 20 and the valve body 50 jointly define the pilot chamber 82; a first overflow channel 83 and a second overflow channel 84, the first overflow channel 83 is provided in the overflow valve body 30 and is respectively communicated with the first connecting hole 11 and the overflow chamber 81, the second overflow channel 84 is provided in the overflow valve body 30 and is respectively communicated with the overflow chamber 81 and the pilot chamber 82; and a third overflow channel 85, the third overflow channel 85 is provided in the overflow valve fixing sleeve 20 and is respectively communicated with the pilot chamber 82 and the second communicating hole 12; wherein, the control valve 60 adjusts the flow of the second overflow channel 84.

[0286] In some embodiments, a guide column 31 is constructed on the side of the overflow valve body 30 facing the overflow valve fixing sleeve 20, and the overflow valve fixing sleeve 20 is provided with a guide hole 21. The guide column 31 is movably engaged with the guide hole 21, and the second overflow channel 84 is provided on the guide column 31; the control valve 60 includes a pilot valve plug 90, and the pilot valve plug 90 extends into the pilot chamber 82. The control valve 60 adjusts the flow of the second overflow channel 84 by controlling the pilot valve plug 90 to approach and move away from the guide column 31.

[0287] In some embodiments, the second overflow channel 84 includes: at least one radial segment 841, which extends in a direction perpendicular to the axial direction of the guide column 31, and one end of the radial segment 841 is connected to the overflow chamber 81; and an axial segment 842, which extends in the axial direction of the guide column 31, and one end of the axial segment 842 is connected to the other end of the radial segment 841, and the other end of the axial segment 842 is connected to the pilot chamber 82.

[0288] In some embodiments, the pilot valve plug 90 includes: a valve plate 91; a valve head 92, wherein the valve head 92 is arranged on the side of the valve plate 91 facing the guide column 31, and the valve head 92 adjusts the flow of the second overflow channel 84 by extending into and away from the second overflow channel 84; and a guide ring 93, wherein the guide ring 93 is arranged on the side of the valve plate 91 facing the overflow valve fixing sleeve 20 and is arranged around the valve head 92.

[0289] In some embodiments, the third overflow channel 85 is at least one groove located on the outer side of the overflow valve fixing sleeve 20 and the valve body 50, and the two ends of the third overflow channel 85 respectively pass through the axial ends of the overflow valve fixing sleeve 20.

[0290] In some embodiments, the surface of the overflow valve fixing sleeve 20 facing the pilot cavity 82 is provided with a guide ring platform 22, the guide ring platform 22 is arranged around the second overflow channel 84, and the outer diameter of one end of the guide ring platform 22 extending into the interior of the pilot cavity 82 is smaller than the outer diameter of the other end; a guide ring groove 23, the guide ring groove 23 is arranged around the guide ring platform 22; and at least one guide branch groove 24, one end of the guide branch groove 24 is connected to the guide ring groove 23 and the other end is connected to the third overflow channel 85.

[0291] In some embodiments, the third overflow channel 85 is multiple and is arranged at intervals along the circumference of the overflow valve fixing sleeve 20, and the guide branch groove 24 is multiple and is arranged at intervals along the circumference of the overflow valve fixing sleeve 20. One end of each guide branch groove 24 is connected to the guide ring groove 23 and the other end is connected to the corresponding third overflow channel 85.

[0292] In some embodiments, the control valve 60 includes: an electromagnetic assembly 120, which is installed on the valve body 50; a valve core cover 130, which is installed on the electromagnetic assembly 120; a valve core 140, which is movably installed on the valve core cover 130; a guide rod 150, which is connected to the valve core 140; and a pilot valve plug 90, which is connected to the guide rod 150; wherein, when the electromagnetic assembly 120 is energized, the valve core 140 generates magnetism and attracts the valve body 50, and when the valve core 140 moves, the movement of the overflow valve body 30 is controlled by the guide rod 150 and the pilot valve plug 90.

[0293] In some embodiments, an assembly ring 13 is constructed on the side of the overflow valve seat 10 facing away from the overflow valve body 30, and the outer peripheral surface of the assembly ring 13 is provided with a first sealing groove 14 extending along its circumference. The first sealing groove 14 is provided with a first sealing ring 15, and the first sealing ring 15 seals the gap between the assembly ring 13 and the inner cylinder 171 of the shock absorber 2000.

[0294] In some embodiments, a second sealing groove 56 is provided on the outer circumference of the valve body 50 . A second sealing ring 57 is provided in the second sealing groove 56 . The second sealing ring 57 seals the gap between the valve body 50 and the outer cylinder 172 of the shock absorber 2000 .

[0295] According to another embodiment of the present application, an overflow valve body 30 for a regulating module 1000 is provided, and the overflow valve body 30 is provided with a first overflow channel 83, which is connected to the overflow chamber 81 of the regulating module 1000 and allows fluid to flow into the overflow chamber 81; and a second overflow channel 84, which is connected to the overflow chamber 81 and allows fluid to flow out of the overflow chamber 81; wherein the minimum cross-sectional area of ​​the second overflow channel 84 is greater than the minimum cross-sectional area of ​​the first overflow channel 83.

[0296] Therefore, according to the above-mentioned overflow valve body for the regulating module, the problem of uneven fluid flow entering the overflow chamber and the fluid flow flowing out of the overflow chamber in the prior art, which leads to unstable fluid flow in and out of the overflow valve, is solved. The fluid entering the overflow chamber can smoothly flow out of the overflow chamber through the second overflow channel, so that the fluid can be more stable when passing through the overflow chamber, the fluid flow curve is smooth, and the curve fluctuation is small, which can further improve the smoothness of the fluid flow in the regulating module.

[0297] In some embodiments, the overflow valve body 30 includes: a valve shoulder 33, the first overflow channel 83 is arranged on the valve shoulder 33, and the overflow chamber 81 is located on one side of the thickness direction of the valve shoulder 33; and a guide column 31, the guide column 31 is arranged on the one side of the thickness direction of the valve shoulder 33, and the second overflow channel 84 is arranged on the guide column 31.

[0298] In some embodiments, the central axis of the guide post 31 coincides with the central axis of the valve shoulder 33 .

[0299] In some embodiments, the second overflow channel 84 includes: at least one radial segment 841, which extends in a direction perpendicular to the axial direction of the guide column 31, and one end of the radial segment 841 is connected to the overflow chamber 81; and an axial segment 842, which extends in the axial direction of the guide column 31, and one end of the axial segment 842 is connected to the other end of the radial segment 841, and the other end of the axial segment 842 passes through the end of the guide column 31 facing away from the valve shoulder 33.

[0300] In some embodiments, a ratio of a minimum cross-sectional area of ​​the first overflow channel 83 to a minimum cross-sectional area of ​​the axial segment 842 is 1:10 to 1:4.

[0301] In some embodiments, the sum of the minimum cross-sectional areas of all the radial segments 841 is greater than or equal to the minimum cross-sectional area of ​​the axial segment 842 .

[0302] In some embodiments, there are multiple radial segments 841 and the radial segments 841 are spaced apart along the circumference of the guide pillar 31 .

[0303] In some embodiments, there are two radial segments 841 and their central axes coincide with each other.

[0304] In some embodiments, the axial section 842 includes: a bottom section 8421, one end of which is connected to the other end of the radial section 841; and a top section 8422, one end of which is connected to the other end of the bottom section 8421, and the other end of the top section 8422 passes through the end of the guide column 31 facing away from the valve shoulder 33; wherein the cross-sectional area of ​​the bottom section 8421 is smaller than the cross-sectional area of ​​the top section 8422.

[0305] In some embodiments, the first overflow channel 83 includes: a middle section 8313; a first gradually expanding section 8311, the first gradually expanding section 8311 is connected to the middle section 8313 and is located on the side of the middle section 8313 facing away from the overflow chamber 81, and the cross-sectional area of ​​the end of the first gradually expanding section 8311 adjacent to the middle section 8313 is smaller than the cross-sectional area of ​​the end of the first gradually expanding section 8311 away from the middle section 8313; and a second gradually expanding section 8312, the second gradually expanding section 8312 is connected to the middle section 8313 and is located on the side of the middle section 8313 facing the overflow chamber 81, and the cross-sectional area of ​​the second gradually expanding section 8312 gradually increases in the direction away from the middle section 8313.

[0306] In some embodiments, the relief valve body 30 further includes a valve ring 34 , which is disposed on the other side of the valve shoulder 33 in the thickness direction and extends in a ring shape along the outer periphery of the valve shoulder 33 .

[0307] In some embodiments, an outer circumferential surface of the valve ring 34 is provided with an overflow sealing groove 32 for assembling an overflow seal 100 .

[0308] In some embodiments, the overflow sealing groove 32 has a first groove wall 321 and a second groove wall 322, wherein the first groove wall 321 is located on the side of the overflow sealing groove 32 facing the guide column 31, and the second groove wall 322 is located on the side of the overflow sealing groove 32 facing away from the guide column 31; wherein, in a direction perpendicular to the axial direction of the overflow valve body 30, the second groove wall 322 is higher than the first groove wall 321.

[0309] In some embodiments, the end of the guide column 31 away from the valve shoulder 33 is constructed with a sealing ring platform 311 for cooperating with the pilot valve plug 90 of the regulating module 1000. The sealing ring platform 311 is arranged around the second overflow channel 84, and the distance between the inner circumferential surface of the end of the sealing ring platform 311 adjacent to the valve shoulder 33 and the central axis of the sealing ring platform 311 is smaller than the distance between the inner circumferential surface of the end of the sealing ring platform 311 away from the valve shoulder 33 and the central axis of the sealing ring platform 311.

[0310] In some embodiments, the distance between the outer peripheral surface of the sealing ring platform 311 at one end adjacent to the valve shoulder 33 and the central axis of the sealing ring platform 311 is greater than the distance between the outer peripheral surface of the sealing ring platform 311 at one end away from the valve shoulder 33 and the central axis of the sealing ring platform 311.

[0311] In some embodiments, the adjustment module 1000 is respectively connected to the compression chamber and the recovery chamber of the shock absorber 2000, and the adjustment module 1000 includes: a relief valve seat 10; a relief valve fixing sleeve 20, the relief valve fixing sleeve being located on one side of the relief valve seat 10; and a relief valve body 30 for the adjustment module 1000 as described above, the relief valve body 30 being movably arranged on the relief valve fixing sleeve 20 and together with the relief valve fixing sleeve 20 defining the relief chamber 81, the relief valve body 30 adjusting the fluid flow between the compression chamber and the recovery chamber by approaching and moving away from the relief valve seat 10.

[0312] In some embodiments, it also includes: a valve body 50, the relief valve fixing sleeve 20 is installed in the valve body 50, and at least a portion of the relief valve seat 10 is installed in the valve body 50; and a control valve 60, the control valve 60 controls the movement of the relief valve body 30 to approach and move away from the relief valve seat 10.

[0313] In some embodiments, the overflow valve seat 10 is provided with at least one first connecting hole 11 and at least one second connecting hole 12, one of the compression chamber and the restoration chamber is connected to the first connecting hole 11, and the other of the compression chamber and the restoration chamber is connected to the second connecting hole 12; the regulating module 1000 is constructed with a first flow path 70 and a second flow path 80, the flow rate of the first flow path 70 is different from the flow rate of the second flow path 80, and the second flow path 80 includes the first overflow channel 83, the overflow chamber 81 and the second overflow channel 84; the regulating module 1000 controls the first connecting hole 11 and the second connecting hole 12 selectively through at least one of the first flow path 70 and the second flow path 80.

[0314] In some embodiments, the first communicating hole 11 is provided at the center of the overflow valve seat 10 , and there are multiple second communicating holes 12 , which are spaced apart along the circumference of the overflow valve seat 10 and surround the first communicating hole 11 .

[0315] In some embodiments, the gap between the relief valve body 30 and the relief valve seat 10 forms the first flow path 70 ; the relief valve body 30 adjusts the flow of the first flow path 70 by moving closer to and away from the relief valve seat 10 .

[0316] In some embodiments, the second flow path 80 also includes: a pilot chamber 82, the overflow valve fixing sleeve 20 and the valve body 50 jointly define the pilot chamber 82, the first overflow channel 83 is respectively connected to the first connecting hole 11 and the overflow chamber 81, the second overflow channel 84 is respectively connected to the overflow chamber 81 and the pilot chamber 82; and a third overflow channel 85, the third overflow channel 85 is provided in the overflow valve fixing sleeve 20 and is respectively connected to the pilot chamber 82 and the second connecting hole 12; wherein, the control valve 60 adjusts the flow of the second overflow channel 84.

[0317] In some embodiments, the third overflow channel 85 is at least one and is a groove provided on the outer side of the overflow valve fixing sleeve 20 that cooperates with the valve body 50, and the two ends of the third overflow channel 85 respectively pass through the axial ends of the overflow valve fixing sleeve 20.

[0318] In some embodiments, the surface of the overflow valve fixing sleeve 20 facing the pilot cavity 82 is provided with a guide ring platform 22, the guide ring platform 22 is arranged around the second overflow channel 84, and the outer diameter of one end of the guide ring platform 22 extending into the interior of the pilot cavity 82 is smaller than the outer diameter of the other end; a guide ring groove 23, the guide ring groove 23 is arranged around the guide ring platform 22; and at least one guide branch groove 24, one end of the guide branch groove 24 is connected to the guide ring groove 23 and the other end is connected to the third overflow channel 85.

[0319] In some embodiments, the third overflow channel 85 is multiple and is arranged at intervals along the circumference of the overflow valve fixing sleeve 20, and the guide branch groove 24 is multiple and is arranged at intervals along the circumference of the overflow valve fixing sleeve 20. One end of each guide branch groove 24 is connected to the guide ring groove 23 and the other end is connected to the corresponding third overflow channel 85.

[0320] In some embodiments, the valve body 50 further includes: a relief valve distance adjustment ring 110 , which is disposed in the valve body 50 and supported between the relief valve seat 10 and the relief valve fixing sleeve 20 .

[0321] In some embodiments, the overflow valve seat 10 is threadedly engaged with the valve body 50, and the overflow valve seat 10 adjusts the deformation of the overflow valve from the adjusting ring 110 by adjusting the degree of tightening with the valve body 50, so as to adjust the distance from the overflow valve fixing sleeve 20 and the overflow valve body 30 to the overflow valve seat 10.

[0322] In some embodiments, the control valve 60 includes: an electromagnetic assembly 120, which is installed on the valve body 50; a valve core cover 130, which is installed on the electromagnetic assembly 120; a valve core 140, which is movably installed on the valve core cover 130; a guide rod 150, which is connected to the valve core 140; and a pilot valve plug 90, which is connected to the guide rod 150; wherein, when the electromagnetic assembly 120 is energized, the valve core 140 generates magnetism and attracts the valve body 50, and when the valve core 140 moves, the movement of the overflow valve body 30 is controlled by the guide rod 150 and the pilot valve plug 90.

[0323] In some embodiments, the electromagnetic assembly 120 includes: an insulating bracket 121, which is mounted on the valve core cover 130 and has a coil groove 1211 on the outer wall; a coil 122, which is wound around the coil groove 1211; and a magnetic cover 123, which is installed on the valve body 50 and covers the coil 122.

[0324] In some embodiments, the control valve 60 further includes a magnetic isolation ring 160 , which is disposed around the valve core 140 and located between the valve core cover 130 and the valve body 50 .

[0325] In some embodiments, the inner wall surface of the valve core cover 130 is constructed with a guide rod groove 131, and a first guide sleeve 132 is provided in the guide rod groove 131; the valve body 50 is constructed with a guide rod hole 53, and a second guide sleeve 54 is provided in the guide rod hole 53; the guide rod 150 is movably matched with the first guide sleeve 132 and the second guide sleeve 54.

[0326] In some embodiments, the outer side surface of the first guide sleeve 132 that cooperates with the valve core cover 130 is provided with at least one first flow groove 133, and the two ends of the first flow groove 133 respectively pass through the two axial ends of the first guide sleeve 132; the outer side surface of the second guide sleeve 54 that cooperates with the valve body 50 is provided with at least one second flow groove, and the two ends of the second flow groove respectively pass through the two axial ends of the second guide sleeve 54.

[0327] In some embodiments, the control valve 60 also includes: a first elastic member 144, an inner wall surface of the valve core cover 130 facing the valve core 140 is configured with a first recessed groove 134, and an end of the valve core 140 facing the valve core cover 130 is configured with a second recessed groove 141, and the two ends of the first elastic member 144 are respectively matched with the first recessed groove 134 and the second recessed groove 141; and a second elastic member 145, an end of the valve core 140 facing the valve body 50 is configured with a third recessed groove 142, and one end of the second elastic member 145 is matched with the third recessed groove 142 and the other end stops at the second guide sleeve 54; wherein, the first elastic member 144 and the second elastic member 145 jointly apply elastic force to the valve core 140 to keep the position of the valve core 140 stable.

[0328] In some embodiments, an assembly ring 13 is constructed on the side of the overflow valve seat 10 facing away from the overflow valve body 30, and the outer peripheral surface of the assembly ring 13 is provided with a first sealing groove 14 extending along its circumference. The first sealing groove 14 is provided with a first sealing ring 15, and the first sealing ring 15 seals the gap between the assembly ring 13 and the inner cylinder 171 of the shock absorber 2000.

[0329] In some embodiments, a second sealing groove 56 is provided on the outer circumference of the valve body 50 . A second sealing ring 57 is provided in the second sealing groove 56 . The second sealing ring 57 seals the gap between the valve body 50 and the outer cylinder 172 of the shock absorber 2000 .

[0330] According to another embodiment of the present application, an electromagnetic assembly 120 is provided, including: an insulating bracket 121, the outer wall of the insulating bracket 121 is provided with a coil groove 1211; and a magnetic cover 123, the magnetic cover 123 is installed on the insulating bracket 121 and covers the coil groove 1211; wherein, one end of the insulating bracket 121 is constructed with at least one anti-rotation positioning column 1213, the magnetic cover 123 is provided with at least one anti-rotation positioning hole 1231, and the anti-rotation positioning column 1213 passes through the anti-rotation positioning hole 1231; the part of the anti-rotation positioning column 1213 extending out of the anti-rotation positioning hole 1231 is constructed with an axial positioning portion 1214, and the magnetic cover 123 is stopped by the axial positioning portion 1214.

[0331] Therefore, by cooperating with the anti-rotation positioning column and the anti-rotation positioning hole, and by providing an axial positioning part on the anti-rotation positioning column, the problem that the coil and coil bracket of the solenoid valve in the prior art are easily affected by the outside world and thus cause displacement is solved, and the magnetic conductive cover and the insulating bracket stop can be further coordinated, which can further ensure the stability of the position of the insulating bracket and the coil, thereby improving the overall stability of the adjustment module and preventing the electromagnetic force fluctuation problem caused by the rotation displacement of the coil during the solenoid valve vibration reduction operation.

[0332] In some embodiments, the axial positioning portion 1214 is formed integrally with the anti-rotation positioning column 1213 .

[0333] In some embodiments, the anti-rotation positioning columns 1213 are multiple and are arranged at circumferential intervals along the insulating bracket 121, the anti-rotation positioning holes 1231 are multiple and are arranged at circumferential intervals along the magnetic cover 123, and the multiple anti-rotation positioning columns 1213 pass through the multiple anti-rotation positioning holes 1231 one by one.

[0334] In some embodiments, the plurality of anti-rotation positioning posts 1213 are arranged at equal intervals along the circumference of the insulating bracket 121 , and the plurality of anti-rotation positioning holes 1231 are arranged at equal intervals along the circumference of the magnetic conductive cover 123 .

[0335] In some embodiments, the cross-section of the anti-rotation positioning column 1213 and the cross-section of the anti-rotation positioning hole 1231 are circular and adapted to each other.

[0336] In some embodiments, it also includes: a coil 122, the coil 122 is wound around the coil slot 1211 of the insulating bracket 121 and is covered by the magnetic cover 123, the one end of the insulating bracket 121 is constructed with a wire post 1212, the magnetic cover 123 is provided with an avoidance hole 1233, the wire post 1212 extends out of the magnetic cover 123 from the avoidance hole 1233, and the wire post 1212 is provided with a wire hole for the coil 122 to extend out.

[0337] In some embodiments, there are at least two wire holes, each for allowing two ends of the coil 122 to extend out.

[0338] In some embodiments, the wire post 1212 extends along the circumference of the insulating support 121 , and at least two wire holes are arranged along the circumference of the insulating support 121 .

[0339] In some embodiments, a control valve 60 includes: the electromagnetic assembly 120 according to the above description; a valve body 50, the insulating bracket 121 and the magnetic cover 123 are installed on the valve body 50; a coil 122, the coil 122 is wound around the coil slot 1211 of the insulating bracket 121 and is covered by the magnetic cover 123; a valve core cover 130, the valve core cover 130 is installed on the insulating bracket 121; a valve core 140, the valve core 140 is movably installed on the valve core cover 130; a guide rod 150, the guide rod 150 is connected to the valve core 140; and a pilot valve plug 90, the pilot valve plug 90 is connected to the guide rod 150; wherein, when the coil 122 is energized, the valve core 140 generates magnetism and attracts the valve body 50.

[0340] In some embodiments, the valve body 10 further includes a magnetic isolation ring 160 , which is disposed around the valve core 140 and located between the valve core cover 130 and the valve body 50 .

[0341] In some embodiments, one of the magnetic isolation ring 160 and the valve core cover 130 is provided with an assembly inner ring 1232, and the other is provided with an assembly outer ring 161. The assembly outer ring 161 is sleeved on the assembly inner ring 1232 and has an interference fit with the assembly inner ring 1232.

[0342] In some embodiments, a support ring groove 52 is provided on the side of the valve body 50 facing the control valve 60, and a support ring platform 162 is constructed on the side of the magnetic isolation ring 160 facing the valve body 50. The support ring platform 162 is matched with the support ring groove 52 and has an interference fit with the support ring groove 52.

[0343] In some embodiments, the inner wall surface of the valve core cover 130 is configured with a guide rod groove 131 , and the guide rod 150 is movably engaged with the guide rod groove 131 .

[0344] In some embodiments, a first guide sleeve 132 is provided in the guide rod groove 131 , and the guide rod 150 is movably engaged with the first guide sleeve 132 .

[0345] In some embodiments, at least one first flow groove 133 is provided on the outer side surface of the first guide sleeve 132 that cooperates with the valve core cover 130 , and both ends of the first flow groove 133 pass through the axial ends of the first guide sleeve 132 respectively.

[0346] In some embodiments, there are multiple first flow grooves 133 and they are spaced apart along the circumference of the first guide sleeve 132 .

[0347] In some embodiments, the valve body 50 is configured with a guide rod hole 53 , and the guide rod 150 is movably fitted into the guide rod hole 53 .

[0348] In some embodiments, a second guide sleeve 54 is provided in the guide rod hole 53 , and the guide rod 150 is movably engaged with the second guide sleeve 54 .

[0349] In some embodiments, at least one second flow groove is provided on the outer side surface of the second guide sleeve 54 that cooperates with the valve body 50 , and both ends of the second flow groove respectively pass through the axial ends of the second guide sleeve 54 .

[0350] In some embodiments, there are multiple second flow grooves and the second flow grooves are spaced apart along the circumference of the second guide sleeve 54 .

[0351] In some embodiments, it also includes: a first elastic member 144, an inner wall surface of the valve core cover 130 facing the valve core 140 is configured with a first recessed groove 134, and an end of the valve core 140 facing the valve core cover 130 is configured with a second recessed groove 141, and both ends of the first elastic member 144 are respectively matched with the first recessed groove 134 and the second recessed groove 141; and a second elastic member 145, an end of the valve core 140 facing the valve body 50 is configured with a third recessed groove 142, and one end of the second elastic member 145 is matched with the third recessed groove 142 and the other end stops at the second guide sleeve 54; wherein, the first elastic member 144 and the second elastic member 145 jointly apply elastic force to the valve core 140 to keep the position of the valve core 140 stable.

[0352] In some embodiments, the valve core 140 is provided with at least one through hole 143 , and both ends of the through hole 143 pass through both ends of the valve core 140 respectively.

[0353] In some embodiments, a limiting structure 55 is constructed on one side of the valve body 50 facing the valve core 140 ; ​​two extreme positions of the valve core 140 in its moving direction are respectively defined by the limiting structure 55 and the valve core cover 130 .

[0354] In some embodiments, the pilot valve plug 90 is configured with a mounting ring 94 . The mounting ring 94 is sleeved on the guide rod 150 and has a clearance fit with the guide rod 150 .

[0355] In some embodiments, the adjustment module 1000 is respectively connected to the compression chamber and the recovery chamber of the shock absorber 2000, and the adjustment module 1000 includes: a relief valve seat 10; a relief valve body 30, the relief valve body 30 adjusts the fluid flow between the compression chamber and the recovery chamber by approaching and moving away from the relief valve seat 10; and the control valve 60 mentioned above, the control valve 60 controls the movement of the relief valve body 30 to approach and move away from the relief valve seat 10.

[0356] According to an embodiment of one aspect of the present application, a shock absorber 2000 is provided, comprising: at least one adjustment module 1000 for the shock absorber 2000 as described above; and a cylinder 170, wherein the compression chamber and the recovery chamber are defined in the cylinder 170.

[0357] In some embodiments, the cylinder 170 includes an outer cylinder 172 and an inner cylinder 171 disposed within the outer cylinder 172 , and the adjustment module 1000 is disposed outside the outer cylinder 172 .

[0358] In some embodiments, there are at least two regulating modules 1000, wherein one regulating module 1000 regulates the fluid flow from the compression chamber to the recovery chamber, and the other regulating module 1000 regulates the fluid flow from the recovery chamber to the compression chamber.

[0359] According to an embodiment of one aspect of the present application, a vehicle 3000 is provided, comprising the shock absorber 2000 described above.

[0360] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0361] In the description of the present application, "first feature" and "second feature" may include one or more of the features. In the description of the present application, "plurality" means two or more, and "several" means one or more. In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present application, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0362] In the description of this specification, the description with reference to the terms "specific embodiment", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. It should be noted that in this application, the combination of any two or more different embodiments is also included in the scope of this application. For the purpose of brevity, this application will no longer specifically describe them one by one.

[0363] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A regulating module (1000) for a shock absorber (2000), characterized in that: The regulating module (1000) is respectively connected to the compression chamber and the recovery chamber of the shock absorber (2000), and the regulating module (1000) comprises: Overflow valve seat (10); A relief valve fixing sleeve (20), wherein the relief valve fixing sleeve (20) is located on one side of the relief valve seat (10); a relief valve body (30), the relief valve body (30) being movably disposed on the relief valve fixing sleeve (20), the relief valve body (30) adjusting the fluid flow between the compression chamber and the recovery chamber by moving closer to and farther from the relief valve seat (10); and An overflow elastic member (40), wherein the overflow elastic member (40) is arranged between the overflow valve fixing sleeve (20) and the overflow valve body (30), and the overflow elastic member (40) provides an elastic force for pushing the overflow valve body (30) toward the overflow valve seat (10).

2. The adjustment module (1000) for a vibration damper (2000) according to claim 1, characterized in that: The overflow elastic member (40) is a spring, and the overflow elastic member (40) is arranged in the overflow valve fixing sleeve (20). One end of the overflow elastic member (40) abuts against the overflow valve fixing sleeve (20) and the other end abuts against the overflow valve body (30).

3. The adjustment module (1000) for a vibration damper (2000) according to claim 2, characterized in that: The outer diameter of the end of the overflow elastic member (40) that abuts against the overflow valve fixing sleeve (20) is greater than the outer diameter of the end of the overflow elastic member (40) that abuts against the overflow valve body (30).

4. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 1 to 3, characterized in that: Also includes: A valve body (50), the relief valve fixing sleeve (20) being installed in the valve body (50), and at least a portion of the relief valve seat (10) being installed in the valve body (50); and A control valve (60) controls the movement of the relief valve body (30) to move closer to and farther from the relief valve seat (10).

5. The adjustment module (1000) for a vibration damper (2000) according to claim 4, characterized in that: The overflow valve seat (10) is provided with at least one first communicating hole (11) and at least one second communicating hole (12); one of the compression chamber and the recovery chamber is communicated with the first communicating hole (11), and the other of the compression chamber and the recovery chamber is communicated with the second communicating hole (12); The regulating module (1000) is configured with a first flow path (70) and a second flow path (80), and the flow rate of the first flow path (70) is different from the flow rate of the second flow path (80); The regulating module (1000) controls the first communicating hole (11) and the second communicating hole (12) to selectively pass through at least one of the first flow path (70) and the second flow path (80).

6. The adjustment module (1000) for a vibration damper (2000) according to claim 5, characterized in that: The first connecting hole (11) is arranged at the center of the overflow valve seat (10), and the second connecting hole (12) is multiple, and the multiple second connecting holes (12) are arranged at intervals along the circumference of the overflow valve seat (10) and surround the first connecting hole (11).

7. The regulating module (1000) for a vibration absorber (2000) according to claim 6, characterized in that: Also includes: A relief valve distance adjustment ring (110) is disposed in the valve body (50) and supported between the relief valve seat (10) and the relief valve fixing sleeve (20).

8. The regulating module (1000) for a vibration damper (2000) according to claim 7, characterized in that: The overflow valve seat (10) is threadedly matched with the valve body (50). The overflow valve seat (10) is adjusted by adjusting the degree of tightening with the valve body (50) to adjust the deformation of the overflow valve from the adjusting ring (110), so as to adjust the distance between the overflow valve fixing sleeve (20) and the overflow valve body (30) and the overflow valve seat (10).

9. The regulating module (1000) for a vibration damper (2000) according to claim 7 or 8, characterized in that: The height of the overflow valve from the adjustment ring (110) along the axial direction thereof is 2.5 mm to 5 mm.

10. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 7 to 9, characterized in that: The cross section of the overflow valve distance adjustment ring (110) parallel to its axial direction is configured to be an arc or a straight line, and the distance between one end of the overflow valve distance adjustment ring (110) adjacent to the overflow valve seat (10) and the central axis of the overflow valve distance adjustment ring (110) is greater than the distance between one end of the overflow valve distance adjustment ring (110) adjacent to the overflow valve fixing sleeve (20) and the central axis of the overflow valve distance adjustment ring (110).

11. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 7 to 10, characterized in that: A first abutting inclined surface (111) is formed at one end of the relief valve distance adjustment ring (110) facing the relief valve fixing sleeve (20), and the distance between the first abutting inclined surface (111) and the central axis of the relief valve distance adjustment ring (110) gradually increases in a direction from the relief valve seat (10) to the relief valve fixing sleeve (20); A second abutting inclined surface (25) is formed at one end of the relief valve fixing sleeve (20) facing the relief valve distance adjusting ring (110), and the distance between the second abutting inclined surface (25) and the central axis of the relief valve fixing sleeve (20) gradually increases from the relief valve seat (10) to the relief valve fixing sleeve (20); The first abutting inclined surface (111) cooperates with the second abutting inclined surface.

12. The regulating module (1000) for a vibration absorber (2000) according to any one of claims 1 to 11, characterized in that: Also includes: An overflow seal (100), the overflow seal (100) being respectively abutted and sealed with the overflow valve fixing sleeve (20) and the overflow valve body (30) of the regulating module (1000), a deformation groove (101) being configured on one side of the overflow seal (100) facing the overflow chamber (81) of the regulating module (1000), and the deformation groove (101) being in communication with the overflow chamber (81); The overflow seal (100) is configured such that, after the fluid in the overflow chamber (81) flows into the deformation groove (101), the pressure exerted on the overflow seal (100) causes the overflow seal (100) to open in the direction of at least one of the overflow valve fixing sleeve (20) and the overflow valve body (30).

13. The overflow seal (100) for a regulating module (1000) according to claim 12, characterized in that: The overflow seal (100) is constructed in an annular shape and is located between the outer circumferential surface of the overflow valve body (30) and the inner circumferential surface of the overflow valve fixing sleeve (20); the deformation groove (101) extends along the circumference of the overflow seal (100); the width of the side of the deformation groove (101) adjacent to the overflow chamber (81) is greater than the width of the side of the deformation groove (101) away from the overflow chamber (81).

14. The overflow seal (100) for a regulating module (1000) according to claim 12 or 13, characterized in that: The distance between the outer circumferential surface and the inner circumferential surface of the overflow seal (100) on the side adjacent to the overflow chamber (81) is greater than the distance between the outer circumferential surface and the inner circumferential surface of the overflow seal (100) on the side away from the overflow chamber (81).

15. The overflow seal (100) for a regulating module (1000) according to any one of claims 12 to 14, characterized in that: include: An outer sealing ring (103), the outer sealing ring (103) abutting against the relief valve fixing sleeve (20); An inner sealing ring (102), the inner sealing ring (102) abutting against the overflow valve body (30); Wherein, the deformation groove (101) is formed between the outer sealing ring (103) and the inner sealing ring (102).

16. The overflow seal (100) for a regulating module (1000) according to claim 15, characterized in that: The cross section of the inner sealing ring (102) is arranged parallel to the central axis of the overflow sealing element (100); The cross section of the outer sealing ring (103) is arranged obliquely relative to the central axis of the overflow seal (100), and the distance between the outer sealing ring (103) and the central axis of the overflow seal (100) gradually increases in the direction toward the overflow chamber (81).

17. The overflow seal (100) for a regulating module (1000) according to claim 15 or 16, characterized in that: The cross section of the inner sealing ring (102) parallel to the central axis of the overflow sealing element (100) is straight or arc-shaped; The cross section of the outer sealing ring (103) parallel to the central axis of the overflow seal (100) is linear or arc-shaped.

18. The overflow seal (100) for a regulating module (1000) according to any one of claims 15 to 17, characterized in that: Also includes: A bottom sealing ring (104), wherein the outer peripheral edge of the bottom sealing ring (104) is connected to the side of the outer sealing ring (103) facing away from the overflow chamber (81), and the inner peripheral edge of the bottom sealing ring (104) is connected to the side of the inner sealing ring (102) facing away from the overflow chamber (81).

19. The overflow seal (100) for a regulating module (1000) according to claim 18, characterized in that: A side surface of the bottom sealing ring (104) facing away from the outer sealing ring (103) and the inner sealing ring (102) is configured as a plane perpendicular to the central axis of the overflow seal (100).

20. The overflow seal (100) for a regulating module (1000) according to claim 18 or 19, characterized in that: A side surface of the bottom sealing ring (104) forming the bottom of the deformation groove (101) is configured as a plane perpendicular to the central axis of the overflow seal (100).

21. The regulating module (1000) for a vibration absorber (2000) according to any one of claims 1 to 3, characterized in that: The overflow valve body (30) is provided with: A first overflow channel (83), the first overflow channel (83) being in communication with the overflow chamber (81) of the regulating module (1000) and allowing fluid to flow into the overflow chamber (81); and a second overflow channel (84), the second overflow channel (84) being in communication with the overflow chamber (81) and allowing fluid to flow out of the overflow chamber (81); Wherein, the minimum cross-sectional area of ​​the second overflow channel (84) is greater than the minimum cross-sectional area of ​​the first overflow channel (83).

22. The regulating module (1000) for a vibration damper (2000) according to claim 21, characterized in that: The overflow valve body (30) comprises: A valve shoulder (33), wherein the first overflow channel (83) is provided on the valve shoulder (33), and the overflow chamber (81) is located on one side of the valve shoulder (33) in a thickness direction; and A guide column (31), wherein the guide column (31) is arranged on the one side in the thickness direction of the valve shoulder (33), and the second overflow channel (84) is arranged on the guide column (31).

23. The regulating module (1000) for a vibration damper (2000) according to claim 22, characterized in that: The central axis of the guide column (31) coincides with the central axis of the valve shoulder (33).

24. The regulating module (1000) for a vibration damper (2000) according to claim 22 or 23, characterized in that: The second overflow channel (84) comprises: at least one radial segment (841), the radial segment (841) extending in a direction perpendicular to the axial direction of the guide column (31), one end of the radial segment (841) being in communication with the overflow chamber (81); and An axial section (842), wherein the axial section (842) extends along the axial direction of the guide column (31), one end of the axial section (842) is connected to the other end of the radial section (841), and the other end of the axial section (842) passes through an end of the guide column (31) that faces away from the valve shoulder (33).

25. The regulating module (1000) for a vibration damper (2000) according to claim 24, characterized in that: The ratio of the minimum cross-sectional area of ​​the first overflow channel (83) to the minimum cross-sectional area of ​​the axial section (842) is 1:10 to 1:

4.

26. The regulating module (1000) for a vibration absorber (2000) according to claim 24 or 25, characterized in that: The sum of the minimum cross-sectional areas of all the radial segments (841) is greater than or equal to the minimum cross-sectional area of ​​the axial segment (842).

27. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 24 to 26, characterized in that: The radial segments (841) are multiple and are arranged at intervals along the circumference of the guide column (31).

28. The regulating module (1000) for a vibration damper (2000) according to claim 27, characterized in that: There are two radial segments (841) and their central axes coincide with each other.

29. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 24 to 28, characterized in that: The axial section (842) comprises: a bottom section (8421), one end of the bottom section (8421) being connected to the other end of the radial section (841); and A top section (8422), one end of the top section (8422) being connected to the other end of the bottom section (8421), and the other end of the top section (8422) passing through an end of the guide column (31) facing away from the valve shoulder (33); Wherein, the cross-sectional area of ​​the bottom section (8421) is smaller than the cross-sectional area of ​​the top section (8422).

30. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 24 to 29, characterized in that: The first overflow channel (83) comprises: Middle section (8313); a first gradually expanding section (8311), the first gradually expanding section (8311) being connected to the middle section (8313) and being located on a side of the middle section (8313) facing away from the overflow chamber (81), the cross-sectional area of ​​an end of the first gradually expanding section (8311) adjacent to the middle section (8313) being smaller than the cross-sectional area of ​​an end of the first gradually expanding section (8311) away from the middle section (8313); and A second gradually expanding section (8312), wherein the second gradually expanding section (8312) is connected to the middle section (8313) and is located on a side of the middle section (8313) facing the overflow chamber (81), and a cross-sectional area of ​​the second gradually expanding section (8312) gradually increases in a direction away from the middle section (8313).

31. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 22 to 30, characterized in that: The overflow valve body (30) further comprises: A valve ring (34) is arranged on the other side of the valve shoulder (33) in the thickness direction and extends along the outer periphery of the valve shoulder (33) into a ring shape.

32. The overflow valve body (30) for the regulating module (1000) according to claim 31, characterized in that: An overflow sealing groove (32) for assembling an overflow sealing member (100) is provided on the outer peripheral surface of the valve ring (34).

33. The regulating module (1000) for a vibration damper (2000) according to claim 32, characterized in that: The overflow sealing groove (32) comprises a first groove wall (321) and a second groove wall (322), wherein the first groove wall (321) is located on a side of the overflow sealing groove (32) facing the guide pillar (31), and the second groove wall (322) is located on a side of the overflow sealing groove (32) facing away from the guide pillar (31); Wherein, in a direction perpendicular to the axial direction of the overflow valve body (30), the second groove wall (322) is higher than the first groove wall (321).

34. The regulating module (1000) for a vibration damper (2000) according to any one of claims 22 to 33, characterized in that: The end of the guide column (31) away from the valve shoulder (33) is constructed with a sealing ring platform (311) for cooperating with the pilot valve plug (90) of the regulating module (1000), and the sealing ring platform (311) is arranged around the second overflow channel (84), and the distance between the inner circumferential surface of the end of the sealing ring platform (311) adjacent to the valve shoulder (33) and the central axis of the sealing ring platform (311) is smaller than the distance between the inner circumferential surface of the end of the sealing ring platform (311) away from the valve shoulder (33) and the central axis of the sealing ring platform (311).

35. The regulating module (1000) for a vibration damper (2000) according to claim 34, characterized in that: The distance between the outer peripheral surface of one end of the sealing ring platform (311) adjacent to the valve shoulder (33) and the central axis of the sealing ring platform (311) is greater than the distance between the outer peripheral surface of one end of the sealing ring platform (311) away from the valve shoulder (33) and the central axis of the sealing ring platform (311).

36. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 1 to 3, characterized in that: Also includes: An electromagnetic assembly (120), the electromagnetic assembly (120) comprising: An insulating support (121), wherein an outer side wall of the insulating support (121) is provided with a coil groove (1211); and A magnetic conductive cover (123), the magnetic conductive cover (123) being mounted on the insulating support (121) and covering the coil slot (1211); Wherein, at least one anti-rotation positioning column (1213) is constructed at one end of the insulating bracket (121), the magnetic conductive cover (123) is provided with at least one anti-rotation positioning hole (1231), and the anti-rotation positioning column (1213) passes through the anti-rotation positioning hole (1231); The portion of the anti-rotation positioning column (1213) extending out of the anti-rotation positioning hole (1231) is configured with an axial positioning portion (1214), and the magnetic conductive cover (123) is stopped by the axial positioning portion (1214).

37. The regulating module (1000) for a vibration absorber (2000) according to claim 36, characterized in that: The axial positioning portion (1214) is formed integrally with the anti-rotation positioning column (1213).

38. The regulating module (1000) for a vibration damper (2000) according to claim 36 or 37, characterized in that: The anti-rotation positioning posts (1213) are multiple and are arranged at intervals along the circumference of the insulating bracket (121); the anti-rotation positioning holes (1231) are multiple and are arranged at intervals along the circumference of the magnetic cover (123); and the multiple anti-rotation positioning posts (1213) pass through the multiple anti-rotation positioning holes (1231) in a one-to-one correspondence.

39. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 36 to 38, characterized in that: The plurality of anti-rotation positioning posts (1213) are arranged at equal intervals along the circumference of the insulating support (121), and the plurality of anti-rotation positioning holes (1231) are arranged at equal intervals along the circumference of the magnetic conductive cover (123).

40. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 36 to 39, characterized in that: The cross-section of the anti-rotation positioning column (1213) and the cross-section of the anti-rotation positioning hole (1231) are circular shapes that fit each other.

41. The adjustment module (1000) for a vibration absorber (2000) according to any one of claims 36 to 40, characterized in that: The invention comprises: a control valve assembly, the control valve assembly comprises the electromagnetic assembly (120), and the control valve assembly further comprises: A valve body (50), the insulating bracket (121) and the magnetic conductive cover (123) being installed on the valve body (50); A coil (122), the coil (122) being wound around the coil slot (1211) of the insulating support (121) and being covered by the magnetic conductive cover (123); A valve core cover (130), wherein the valve core cover (130) is mounted on the insulating bracket (121); A valve core (140), wherein the valve core (140) is movably mounted on the valve core cover (130); a guide rod (150), the guide rod (150) being connected to the valve core (140); and A pilot valve plug (90), the pilot valve plug (90) being connected to the guide rod (150); When the coil (122) is energized, the valve core (140) generates magnetism and attracts the valve body (50).

42. The control valve assembly according to claim 41, characterized in that Also includes: A magnetic isolation ring (160), the magnetic isolation ring (160) is arranged around the valve core (140) and is located between the valve core cover (130) and the valve body (50).

43. The control valve assembly of claim 42, wherein: One of the magnetic isolation ring (160) and the valve core cover (130) is provided with an assembly inner ring (1232), and the other is provided with an assembly outer ring (161). The assembly outer ring (161) is sleeved on the assembly inner ring (1232) and is interference fit with the assembly inner ring (1232).

44. A control valve assembly according to claim 42 or 43, characterised in that A support ring groove (52) is provided on the side of the valve body (50) facing the control valve (60), and a support ring platform (162) is constructed on the side of the magnetic isolation ring (160) facing the valve body (50). The support ring platform (162) is matched with the support ring groove (52) and has an interference fit with the support ring groove (52).

45. A control valve assembly according to any one of claims 41 to 44, characterized in that The inner wall surface of the valve core cover (130) is configured with a guide rod groove (131), and the guide rod (150) is movably matched with the guide rod groove (131).

46. ​​The control valve assembly of claim 45, wherein: A first guide sleeve (132) is provided in the guide rod groove (131), and the guide rod (150) is movably matched with the first guide sleeve (132).

47. The control valve assembly of claim 46, wherein: At least one first flow groove (133) is provided on the outer side surface of the first guide sleeve (132) that cooperates with the valve core cover (130), and the two ends of the first flow groove (133) respectively pass through the two axial ends of the first guide sleeve (132).

48. The control valve assembly of claim 47, wherein: The first flow grooves (133) are multiple and are arranged at intervals along the circumference of the first guide sleeve (132).

49. A control valve assembly according to any one of claims 41 to 48, characterized in that The valve body (50) is configured with a guide rod hole (53), and the guide rod (150) is movably fitted into the guide rod hole (53).

50. The control valve assembly of claim 49, wherein: A second guide sleeve (54) is provided in the guide rod hole (53), and the guide rod (150) is movably matched with the second guide sleeve (54).

51. The control valve assembly of claim 50, wherein: At least one second flow groove is provided on the outer side surface of the second guide sleeve (54) that cooperates with the valve body (50), and two ends of the second flow groove respectively pass through two axial ends of the second guide sleeve (54).

52. The control valve assembly of claim 51, wherein: The second flow grooves are multiple and are arranged at intervals along the circumference of the second guide sleeve (54).

53. A control valve assembly according to any one of claims 50 to 52, characterized in that Also includes: a first elastic member (144); an inner wall surface of the valve core cover (130) facing the valve core (140) is configured with a first recessed groove (134); an end of the valve core (140) facing the valve core cover (130) is configured with a second recessed groove (141); and two ends of the first elastic member (144) are respectively matched with the first recessed groove (134) and the second recessed groove (141); and A second elastic member (145), wherein one end of the valve core (140) facing the valve body (50) is provided with a third recessed groove (142), one end of the second elastic member (145) is fitted in the third recessed groove (142) and the other end abuts against the second guide sleeve (54); The first elastic member (144) and the second elastic member (145) jointly apply elastic force to the valve core (140) to keep the position of the valve core (140) stable.

54. A control valve assembly according to any one of claims 41 to 53, characterized in that The valve core (140) is provided with at least one through hole (143), and two ends of the through hole (143) respectively pass through two ends of the valve core (140).

55. A control valve assembly according to any one of claims 41 to 54, characterized in that A limiting structure (55) is configured on one side of the valve body (50) facing the valve core (140); The two extreme positions of the valve core (140) in its moving direction are respectively defined by the limiting structure (55) and the valve core cover (130).

56. A control valve assembly according to any one of claims 41 to 55, characterized in that The pilot valve plug (90) is configured with a mounting ring (94), and the mounting ring (94) is sleeved on the guide rod (150) and is clearance-matched with the guide rod (150).

57. A control valve assembly according to any one of claims 41 to 56, characterized in that The solenoid valve assembly is a solenoid valve assembly.

58. A vibration absorber (2000), characterized in that: include: At least one regulating module (1000) for a vibration damper (2000) according to any one of claims 1 to 57; A cylinder (170), wherein the compression chamber and the recovery chamber are defined in the cylinder (170).

59. The vibration absorber (2000) according to claim 58, characterized in that The cylinder (170) comprises an outer cylinder (172) and an inner cylinder (171) disposed inside the outer cylinder (172), and the adjustment module (1000) is disposed outside the outer cylinder (172).

60. The vibration absorber (2000) according to claim 58 or 59, characterized in that There are at least two regulating modules (1000), wherein one regulating module (1000) regulates the fluid flow from the compression chamber to the recovery chamber, and the other regulating module (1000) regulates the fluid flow from the recovery chamber to the compression chamber.

61. A vehicle (3000), characterized in that: Comprising a vibration absorber (2000) according to any one of claims 58-60.

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