Double-valve decoupling adjusting system and damping shock absorber

Abstract

The invention discloses a double-valve decoupling adjusting system and a damping shock absorber, the double-valve decoupling adjusting system comprises a recovery electromagnetic valve, a compression electromagnetic valve, a recovery one-way valve and a compression one-way valve, and an inlet of the recovery electromagnetic valve is used for being communicated with a recovery chamber of the damping shock absorber; an inlet of the compression electromagnetic valve is used for being communicated with a compression chamber of the damping shock absorber. The recovery one-way valve and the recovery electromagnetic valve are arranged in series, an outlet of the recovery one-way valve is communicated with an inlet of the recovery electromagnetic valve, and an inlet of the recovery one-way valve is used for being communicated with a recovery chamber of a damping shock absorber; the compression one-way valve and the compression electromagnetic valve are arranged in series, an outlet of the compression one-way valve is communicated with an inlet of the compression electromagnetic valve, and an inlet of the compression one-way valve is used for being communicated with a compression chamber of a damping shock absorber. The double-valve decoupling adjusting system can solve the problem that decoupling adjustment cannot be achieved through existing double-valve control, and the adjusting difficulty of the damping shock absorber can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorbers for motor vehicle chassis, and in particular to a dual-valve decoupling adjustment system and a damping shock absorber. Background Art

[0002] The stability of vehicle operation is mainly enhanced and adjusted by the suspension system installed on the chassis. As an important component of the suspension system, the damping shock absorber plays a vital role.

[0003] Some existing damping shock absorbers are realized in the form of dual valve electronic control (such as Figure 1 (as shown), it uses two solenoid valves to transfer and regulate the hydraulic oil during the piston rod's recovery and compression processes. During the recovery process, the piston rod extends, and the oil in the recovery chamber is pressed by the piston into the recovery solenoid valve and then discharged into the common reservoir chamber. At the same time, the oil in the common reservoir chamber is drawn into the compression chamber through the compensation valve to cope with changes in the compression chamber's internal pressure. Conversely, during the compression process, the piston rod is pressed in, and the oil in the compression chamber is pressed by the piston into the compression solenoid valve and discharged into the common reservoir chamber. At the same time, the oil in the common reservoir chamber needs to be drawn into the recovery chamber through the recovery solenoid valve to cope with changes in the recovery chamber's internal pressure.

[0004] During the above process, the compression-recovery path of the damping fluid controlled by the solenoid valve is not completely isolated into two control loops. One solenoid valve is arranged on the compression side, and the other solenoid valve is arranged on the recovery side. Whether in the recovery process or the compression process, the operation of the solenoid valve on one side will affect the damping adjustment on the other side, and the system is in a coupled state. Especially during the compression stroke, the oil replenishment of the recovery chamber must pass through the recovery solenoid valve. At this time, adjusting the recovery solenoid valve will affect the compression damping, and the decoupling adjustment of compression and recovery cannot be achieved. Moreover, the disturbance of one of the solenoid valves will affect the damping force output of compression or recovery. During the control process, the current of the two valves needs to be combined, which increases the difficulty of control and is not conducive to adjustment and matching. In addition, the existing technology also has problems such as large radial space occupation and high cost of multiple cylinder sleeves. Summary of the Invention

[0005] The purpose of the present invention is to provide a dual-valve decoupling adjustment system and a damping shock absorber to address the above-mentioned shortcomings of the existing damping shock absorber using dual-valve control technology.

[0006] The present invention is achieved through the following technical solutions:

[0007] In a first aspect, a dual-valve decoupling regulation system comprises:

[0008] a restoring solenoid valve, wherein the inlet of the restoring solenoid valve is used to communicate with the restoring chamber of the damping shock absorber;

[0009] a compression solenoid valve, wherein an inlet of the compression solenoid valve is used to communicate with a compression chamber of the damping shock absorber;

[0010] a restoration one-way valve, arranged in series with the restoration solenoid valve, wherein the outlet of the restoration one-way valve is communicated with the inlet of the restoration solenoid valve, and the inlet of the restoration one-way valve is used to communicate with the restoration chamber of the damping shock absorber;

[0011] A compression check valve is arranged in series with the compression solenoid valve, wherein the outlet of the compression check valve is communicated with the inlet of the compression solenoid valve, and the inlet of the compression check valve is used to communicate with the compression chamber of the damping shock absorber.

[0012] In some embodiments, a damping medium control circuit formed by the restoration check valve and the restoration solenoid valve is connected in parallel with a damping medium control circuit formed by the compression check valve and the compression solenoid valve.

[0013] In some embodiments, the dual-valve decoupling regulation system further includes:

[0014] a return passive valve and a compression second passive valve for connecting a return chamber and a compression chamber of the damping shock absorber, wherein the return passive valve is used to allow a damping medium to flow unidirectionally from the return chamber to the compression chamber during a return process, and the compression second passive valve is used to allow a damping medium to flow unidirectionally from the compression chamber to the return chamber during a compression process;

[0015] A restoration compensation valve and a compression first passive valve are used to connect the compensation chamber and the compression chamber of the damping shock absorber. The restoration compensation valve is used to enable the damping medium to flow unidirectionally from the compensation chamber to the compression chamber during the restoration process. The compression first passive valve is used to enable the damping medium to flow unidirectionally from the compression chamber to the compensation chamber during the compression process.

[0016] In a second aspect, the present invention provides a damping vibration absorber, comprising:

[0017] piston cylinder;

[0018] The piston rod is sleeved in the piston cylinder and moves telescopically along the axial direction of the piston cylinder;

[0019] a piston connected to the piston rod and dividing the interior of the piston cylinder into a recovery chamber and a compression chamber;

[0020] And the dual-valve decoupling regulation system as described in the first aspect.

[0021] In some embodiments, the damping vibration absorber further comprises:

[0022] A damping cylinder is sleeved on the outside of the piston cylinder, a conversion interlayer is reserved between the inner wall of the damping cylinder and the outer wall of the piston cylinder, and a connecting hole is opened on the side wall of the piston cylinder to connect the recovery chamber and the conversion interlayer;

[0023] The valve block is connected to one end of the piston cylinder and the damping cylinder close to the compression chamber. The restoration solenoid valve, the compression solenoid valve, the restoration check valve and the compression check valve are all arranged on the valve block.

[0024] In some embodiments, a restoration channel and a compression channel are formed on the valve block, and the restoration solenoid valve and the restoration one-way valve are arranged in series on the restoration channel to form a one-way flow path from the conversion interlayer to the compression chamber, and the compression solenoid valve and the compression one-way valve are arranged in series on the compression channel to form a one-way flow path from the compression chamber to the conversion interlayer.

[0025] In some embodiments, the return passive valve and the compression second passive valve are disposed on the piston to enable transfer of the damping medium between the return chamber and the compression chamber through the piston.

[0026] In some embodiments, the damping shock absorber further includes a compensation cylinder, a compensation piston is slidably disposed in the compensation cylinder, and the compensation piston separates the compensation cylinder into a compensation chamber and an air chamber.

[0027] In some embodiments, a compensation channel is formed on the valve block, and the compensation channel is used to connect the compression chamber and the compensation chamber.

[0028] In some embodiments, the restoration compensation valve and the compression first passive valve are disposed at the bottom end of the piston cylinder to enable the damping medium to be transferred between the compression chamber and the compensation chamber through the compensation channel.

[0029] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0030] The present invention realizes decoupling control of the two solenoid valves by further arranging a restoration one-way valve and a compression one-way valve on the basis of the two solenoid valves, and limiting the connection mode of the four. During the restoration process, the oil flows from the restoration chamber into the inlet of the restoration solenoid valve through the restoration one-way valve, and then flows into the compression chamber from the outlet of the restoration solenoid valve to compensate for the internal pressure in the compression chamber. Since the compression one-way valve is provided, the oil in the restoration chamber will not flow into the compression chamber through the compression solenoid valve. Therefore, the compression solenoid valve does not work during the entire restoration process; conversely, during the compression process, the oil only flows through the compression solenoid valve, and does not flow through the restoration solenoid valve under the action of the restoration one-way valve. Therefore, the restoration solenoid valve does not work during the entire compression process; thus, the dual-valve decoupling adjustment system realizes decoupling control of the restoration solenoid valve and the compression solenoid valve during the restoration process and the compression process respectively, so that the two solenoid valves can be adjusted independently to adjust the parameters of the restoration or compression process respectively. At the same time, the damping shock absorber has a more compact structural layout, occupies less radial space; the structure without an intermediate cylinder has a simpler and shorter flow path structure, reducing manufacturing costs; and the two control channels are connected in parallel, and the two channels can be controlled independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0032] Figure 1 A cross-sectional view of a dual-valve electronically controlled damping shock absorber according to the prior art;

[0033] Figure 2 This is a schematic diagram of the dual-valve decoupling regulation system in the present invention;

[0034] Figure 3 Schematic diagram of the structure of the damping shock absorber in the present invention;

[0035] Figure 4 Schematic diagram of the oil flow path when the damping shock absorber of the present invention is restored;

[0036] Figure 5 Schematic diagram of the oil flow path when the damping shock absorber of the present invention is compressed.

[0037] Markings and corresponding parts names in the accompanying drawings:

[0038] 1-recovery solenoid valve, 2-compression solenoid valve, 3-recovery one-way valve, 4-compression one-way valve, 5-recovery passive valve, 6-compression second passive valve, 7-recovery compensation valve, 8-compression first passive valve, 9-piston cylinder, 91-connecting hole, 10-piston rod, 11-piston, 12-recovery chamber, 13-compression chamber, 14-damping cylinder, 15-conversion interlayer, 16-valve block, 161-first hole, 162-second hole, 163-third hole, 164-fourth hole, 165-compensation channel, 17-compensation cylinder, 18-compensation piston, 19-compensation chamber, 20-air chamber. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0042] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0044] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0045] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces), unless otherwise clearly and specifically defined.

[0046] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 cannot be understood as a limitation on the embodiments of the present application.

[0047] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0048] Please refer to Figure 2 and Figure 3 This embodiment provides a dual-valve decoupling regulation system, including: a restoring solenoid valve 1, the inlet of which is used to communicate with the restoring chamber 12 of the damping shock absorber; a second compression solenoid valve 2, the inlet of which is used to communicate with the compression chamber 13 of the damping shock absorber; a third restoring check valve 3, which is arranged in series with the restoring solenoid valve 1, the outlet of which is communicated with the inlet of the restoring solenoid valve 1, and the inlet of which is used to communicate with the restoring chamber 12 of the damping shock absorber; a fourth compression check valve 4, which is arranged in series with the compression solenoid valve 2, the outlet of which is communicated with the inlet of the compression solenoid valve 2, and the inlet of the compression check valve 4 is used to communicate with the compression chamber 13 of the damping shock absorber.

[0049] The dual-valve decoupling regulation system provided by the present invention realizes the decoupling control of the restoration solenoid valve 1 and the compression solenoid valve 2 by further arranging a restoration check valve 3 and a compression check valve 4 on the basis of the restoration solenoid valve 1 and the compression solenoid valve 2, and limiting the connection mode of the four. During the restoration process, the oil flows from the restoration chamber 12 into the inlet of the restoration solenoid valve 1 through the restoration check valve 3, and then flows into the compression chamber 13 from the outlet of the restoration solenoid valve 1 to compensate for the internal pressure in the compression chamber 13. However, due to the provision of the compression check valve 4, the oil in the restoration chamber 12 will not flow into the compression chamber 13 through the compression solenoid valve 2. Therefore, the pressure in the entire restoration process is The compression solenoid valve 2 does not work; on the contrary, during the compression process, the oil flows from the compression chamber 13 into the inlet of the compression solenoid valve 2, and then flows from the outlet of the compression solenoid valve 2 into the recovery chamber 12 to compensate for the internal pressure of the recovery chamber 12. Since a recovery one-way valve 3 is provided, the oil in the compression chamber 13 will not flow into the recovery chamber 12 through the recovery solenoid valve 1. Therefore, the recovery solenoid valve 1 does not work during the entire compression process. Therefore, the dual-valve decoupling regulation system realizes the decoupling control of the recovery solenoid valve 1 and the compression solenoid valve 2 in the recovery process and the compression process respectively, so that the two solenoid valves can be adjusted independently to adjust the parameters of the recovery or compression process respectively.

[0050] It should be noted that the one-way direction of the above-mentioned restoration one-way valve 3 and compression one-way valve 4 are both from their own inlet to outlet, that is, the one-way direction of the restoration one-way valve 3 is from the outlet of the restoration solenoid valve 1 to the compression chamber 13, and the one-way direction of the compression one-way valve 4 is from the outlet of the compression solenoid valve 2 to the restoration chamber 12.

[0051] According to some embodiments of the present application, the damping medium control circuit formed by the restoration check valve 3 and the restoration solenoid valve 1 is connected in parallel with the damping medium control circuit formed by the compression check valve 4 and the compression solenoid valve 2 .

[0052] According to some embodiments of the present application, the dual-valve decoupling adjustment system also includes a restoration passive valve 5 and a compression second passive valve 6 for connecting the restoration chamber 12 and the compression chamber 13 of the damping shock absorber; the restoration passive valve 5 is used to enable the damping medium to flow unidirectionally from the restoration chamber 12 to the compression chamber 13 during the restoration process; the compression second passive valve 6 is used to enable the damping medium to flow unidirectionally from the compression chamber 13 to the restoration chamber 12 during the compression process.

[0053] According to some embodiments of the present application, the dual-valve decoupling adjustment system also includes a restoration compensation valve 7 and a compression first passive valve 8 for connecting the compensation chamber 19 and the compression chamber 13 of the damping shock absorber; the restoration compensation valve 7 is used to enable the damping medium to flow unidirectionally from the compensation chamber 19 to the compression chamber 13 during the restoration process; the compression first passive valve 8 is used to enable the damping medium to flow unidirectionally from the compression chamber 13 to the compensation chamber 19 during the compression process.

[0054] A damping shock absorber provided in an embodiment of the present application includes: a piston cylinder 9; a piston rod 10, which is sleeved in the piston cylinder 9 and telescopically moves along the axial direction of the piston cylinder 9; a piston 11, which is connected to the piston rod 10 and divides the interior of the piston cylinder 9 into a recovery chamber 12 and a compression chamber 13; and a dual-valve decoupling adjustment system as described above; wherein, the inlet of the recovery solenoid valve 1 is connected to the recovery chamber 12, the inlet of the compression solenoid valve 2 is connected to the compression chamber 13, the inlet of the recovery check valve 3 is connected to the recovery chamber 12, and the inlet of the compression check valve 4 is connected to the compression chamber 13.

[0055] Through the above-mentioned setting, during the recovery process, the piston rod 10 extends outward, driving the piston 11 to squeeze the oil in the recovery chamber 12, and the oil flows from the recovery chamber 12 into the inlet of the recovery solenoid valve 1 through the recovery one-way valve 3, and then flows into the compression chamber 13 from the outlet of the recovery solenoid valve 1 to compensate for the internal pressure in the compression chamber 13; during the compression process, the piston rod 10 retracts, driving the piston 11 to squeeze the compression chamber 13, and the oil flows from the compression chamber 13 into the inlet of the compression solenoid valve 2 through the compression one-way valve 4, and then flows into the recovery chamber 12 from the outlet of the compression solenoid valve 2 to compensate for the internal pressure in the recovery chamber 12. Due to the setting of the above-mentioned dual-valve decoupling adjustment system, the damping shock absorber can realize decoupling control of the recovery solenoid valve and the compression solenoid valve during the recovery process and the compression process respectively, so that the two solenoid valves can be adjusted independently to adjust the parameters of the recovery or compression process respectively.

[0056] According to some embodiments of the present application, the damping shock absorber also includes: a damping cylinder 14, which is mounted on the outside of the piston cylinder 9, and a conversion interlayer 15 is reserved between the inner wall of the damping cylinder 14 and the outer wall of the piston cylinder 9, and a connecting hole 91 is opened on the side wall of the piston cylinder 9 to connect the recovery chamber 12 with the conversion interlayer 15; a valve block 16, which is connected to the piston cylinder 9 and one end of the damping cylinder 14 close to the compression chamber 13, and the recovery solenoid valve 1, the compression solenoid valve 2, the recovery check valve 3 and the compression check valve 4 are all arranged on the valve block 16.

[0057] Specifically, the valve block 16 is provided with a first mounting hole and a second mounting hole along the radial direction of the damping cylinder 14. The return solenoid valve 1 is inserted into the first mounting hole, and the compression solenoid valve 2 is inserted into the second mounting hole. That is, the axes of the return solenoid valve 1 and the compression solenoid valve 2 are perpendicular to the axis of the damping cylinder 14. By inserting the return solenoid valve and the compression solenoid valve along the radial direction of the damping shock absorber, less radial space is occupied.

[0058] According to some embodiments of the present application, a restoration channel and a compression channel are formed on the valve block 16, and the restoration solenoid valve 1 and the restoration check valve 3 are arranged in series on the restoration channel to form a one-way flow path from the conversion interlayer 15 to the compression chamber 13, and the compression solenoid valve 2 and the compression check valve 4 are arranged in series on the compression channel to form a one-way flow path from the compression chamber 13 to the conversion interlayer 15.

[0059] Specifically, the valve block 16 has a first hole 161, a second hole 162, a third hole 163, and a fourth hole 164 on the side opposite the damping cylinder 14. The first hole 161 connects the conversion interlayer 15 with the first mounting hole; the second hole 162 connects the conversion interlayer 15 with the second mounting hole; the third hole 163 connects the compression chamber 13 with the first mounting hole; and the fourth hole 164 connects the compression chamber 13 with the second mounting hole. The first hole 161 and the third hole 163 form the restoration channel, and the second hole 162 and the fourth hole 164 form the compression channel.

[0060] During the recovery process, the piston rod 10 extends outward, driving the piston 11 to squeeze the oil in the recovery chamber 12. The oil flows from the recovery chamber 12 into the conversion interlayer 15 through the connecting hole 91, then flows along the conversion interlayer 15 into the inlet of the recovery check valve 3, then flows out from the outlet of the recovery check valve 3, enters the inlet of the recovery solenoid valve 1, and then flows into the compression chamber 13 from the outlet of the recovery solenoid valve 1 to compensate for the internal pressure in the compression chamber 13. During the compression process, the piston rod 10 retracts, driving the piston 11 to squeeze the compression chamber 13. The oil enters from the compression chamber 13 through the inlet of the compression check valve 4, then flows out from the outlet of the compression check valve 4, then flows into the inlet of the compression solenoid valve 2, then flows out from the outlet of the compression solenoid valve 2, enters the conversion interlayer 15, and then flows into the recovery chamber 12 through the connecting hole 91 to compensate for the internal pressure in the recovery chamber 12.

[0061] According to some embodiments of the present application, the return passive valve 5 and the compression second passive valve 6 are disposed on the piston 11 to enable the damping medium to be transferred between the return chamber 12 and the compression chamber 13 through the piston 11. Through the above arrangement, a small amount of oil can be directly transferred between the return chamber 12 and the compression chamber through the piston during both the return and compression processes, thereby quickly providing a damping effect.

[0062] According to some embodiments of the present application, the damping shock absorber further includes a compensation cylinder 17 , in which a compensation piston 18 is slidably disposed. The compensation piston 18 separates the compensation cylinder 17 into a compensation chamber 19 and an air chamber 20 .

[0063] According to some embodiments of the present application, a compensation channel 165 is formed on the valve block 16 , and the compensation channel 165 is used to connect the compression chamber 13 and the compensation chamber 19 .

[0064] Specifically, the compensation cylinder 17 is coaxially arranged with the damping cylinder 14 and docked with the other side of the valve block 16. The side of the compensation piston 18 facing the valve block 16 forms the compensation chamber 19, and the other side of the compensation piston 18 forms the air chamber 20.

[0065] During the recovery process, the volume of compression chamber 13 gradually increases, causing the negative pressure to gradually increase. Under the action of the negative pressure, the compensating piston 18 in the compensating cylinder 17 moves toward the compression chamber 13, thereby forcing the oil in the compensating chamber 19 into the compression chamber 13, achieving a certain degree of pressure balance. During the compression process, the volume of compression chamber 13 gradually decreases, causing the positive pressure to gradually increase. Under the action of the positive pressure, the compensating piston 18 in the compensating cylinder 17 moves away from the compression chamber 13, forcing some of the oil in the compression chamber 13 into the compensating chamber 19, achieving a certain degree of pressure balance.

[0066] Because the damping shock absorber has a built-in air chamber device, the lower part of the compensating piston (i.e., the air chamber) is filled with gas. This device is used to offset the volume change inside the damper caused by the up and down movement of the piston rod. At the same time, the compensating piston in the air chamber isolates the oil from contact with air, preventing oil deterioration and oxidation.

[0067] According to some embodiments of the present application, the restoring compensation valve 7 and the first compression passive valve 8 are disposed at the bottom end of the piston cylinder 9 to enable the transfer of damping medium between the compression chamber 13 and the compensation chamber 19 via the compensation channel 165. During the restoring process, the oil in the compensation chamber enters the compression chamber through the compensation channel and the restoring compensation valve; during the compression process, the oil in the compression chamber enters the compensation chamber through the first compression passive valve and the compensation channel.

[0068] Please refer to Figure 4 and Figure 5 , the oil transfer path of the damping shock absorber in the embodiment of the present application when working is as follows:

[0069] When the piston rod 10 moves upward (when restoring), the oil flows from the restoration chamber 12, the connecting hole 91, the conversion interlayer 15, the first hole 161, the restoration one-way valve 3, into the restoration solenoid valve 1 (forming the restoration first damping), and then through the third hole 163 and the compression chamber 13; at the same time, the oil in the restoration chamber 12 returns to the compression chamber 13 through the restoration passive valve 5 (forming the restoration second damping); at the same time, the oil in the compensation chamber 19 passes through the compensation channel 165, the restoration compensation valve 7, and the compression chamber 13 to compensate for the volume change caused by the withdrawal of the piston rod.

[0070] When the piston rod 10 is pressed down (during compression), the oil returns to the recovery chamber 12 from the compression chamber 13, the fourth hole 164, the compression one-way valve 4, the compression solenoid valve 2 (forming the first compression damping), the second hole 162, the conversion interlayer 15, the connecting hole 91; at the same time, the oil in the compression chamber 13 passes through the compression first passive valve 8 (forming the second compression damping), the compensation channel 165-compensation chamber 19, pushing the compensation piston 18 downward to offset the volume change of the resurrecting piston rod; at the same time, the oil in the compression chamber 13 passes through the compression second passive valve 6 and returns to the recovery chamber 12 (forming the third compression damping).

[0071] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-valve decoupling regulation system, characterized in that: include: A restoring solenoid valve (1), the inlet of the restoring solenoid valve (1) being connected to a restoring chamber of the damping shock absorber; A compression solenoid valve (2), the inlet of the compression solenoid valve (2) being connected to a compression chamber of the damping shock absorber; a restoration one-way valve (3) arranged in series with the restoration solenoid valve (1), wherein the outlet of the restoration one-way valve (3) is communicated with the inlet of the restoration solenoid valve (1), and the inlet of the restoration one-way valve (3) is used to communicate with the restoration chamber of the damping shock absorber; A compression check valve (4) is arranged in series with the compression solenoid valve (2), the outlet of the compression check valve (4) is communicated with the inlet of the compression solenoid valve (2), and the inlet of the compression check valve (4) is used to communicate with the compression chamber of the damping shock absorber.

2. The dual-valve decoupling regulation system according to claim 1, characterized in that: The damping medium control circuit formed by the restoration one-way valve (3) and the restoration solenoid valve (1) is connected in parallel with the damping medium control circuit formed by the compression one-way valve (4) and the compression solenoid valve (2).

3. The dual-valve decoupling regulation system according to claim 2, characterized in that: Also includes: A restoration passive valve (5) and a compression second passive valve (6) for connecting the restoration chamber and the compression chamber of the damping shock absorber, wherein the restoration passive valve (5) is used to enable the damping medium to flow unidirectionally from the restoration chamber to the compression chamber during the restoration process, and the compression second passive valve (6) is used to enable the damping medium to flow unidirectionally from the compression chamber to the restoration chamber during the compression process; A restoring compensation valve (7) and a compression first passive valve (8) are used to connect the compensation chamber and the compression chamber of the damping shock absorber. The restoring compensation valve (7) is used to enable the damping medium to flow unidirectionally from the compensation chamber to the compression chamber during the restoration process. The compression first passive valve (8) is used to enable the damping medium to flow unidirectionally from the compression chamber to the compensation chamber during the compression process.

4. A damping shock absorber, characterized in that: include: Piston cylinder (9); A piston rod (10) is sleeved in the piston cylinder (9) and is capable of telescopic movement along the axial direction of the piston cylinder (9); A piston (11) is connected to the piston rod (10) and divides the interior of the piston cylinder (9) into a recovery chamber (12) and a compression chamber (13); And the dual-valve decoupling regulation system as claimed in claim 3.

5. The damping vibration absorber according to claim 4, characterized in that: Also includes: A damping cylinder (14) is sleeved on the outside of the piston cylinder (9), a conversion interlayer (15) is reserved between the inner wall of the damping cylinder (14) and the outer wall of the piston cylinder (9), and a connecting hole (91) is opened on the side wall of the piston cylinder (9) to connect the recovery chamber (12) and the conversion interlayer (15); The valve block (16) is connected to one end of the piston cylinder (9) and the damping cylinder (14) close to the compression chamber (13), and the restoring solenoid valve (1), the compression solenoid valve (2), the restoring check valve (3) and the compression check valve (4) are all arranged on the valve block (16).

6. The damping vibration absorber according to claim 5, characterized in that: A restoration channel and a compression channel are formed on the valve block (16); the restoration solenoid valve (1) and the restoration check valve (3) are arranged in series on the restoration channel to form a one-way flow path from the conversion interlayer (15) to the compression chamber (13); and the compression solenoid valve (2) and the compression check valve (4) are arranged in series on the compression channel to form a one-way flow path from the compression chamber (13) to the conversion interlayer (15).

7. The damping vibration absorber according to claim 5, characterized in that: The return passive valve (5) and the compression second passive valve (6) are arranged on the piston (11) to realize the transfer of the damping medium between the return chamber (12) and the compression chamber (13) through the piston (11).

8. The damping vibration absorber according to claim 5, characterized in that: It also includes a compensation cylinder (17), in which a compensation piston (18) is slidably arranged. The compensation piston (18) divides the compensation cylinder (17) into a compensation chamber (19) and an air chamber (20).

9. The damping vibration absorber according to claim 8, characterized in that: A compensation channel (165) is formed on the valve block (16), and the compensation channel (165) is used to connect the compression chamber (13) and the compensation chamber (19).

10. The damping vibration absorber according to claim 9, characterized in that: The restoring compensation valve (7) and the compression first passive valve (8) are arranged at the bottom end of the piston cylinder (9) to realize the transfer of the damping medium between the compression chamber (13) and the compensation chamber (19) through the compensation channel (165).

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