A shock absorber damping adjuster and a shock absorber system

Abstract

The application discloses a shock absorber damping adjuster and a shock absorber system, and belongs to the technical field of shock absorber systems.The shock absorber damping adjuster comprises an adjuster base body, an adjusting valve and a flow-stopping valve; the two ends of the adjuster base body are respectively provided with an adjuster first end cover and an adjuster second end cover; the adjusting valve comprises an adjusting valve base body, the adjusting valve base body is penetrated by an adjusting valve guide rod, and the adjusting valve base body is provided with an adjusting valve channel; the adjusting valve guide rod is sleeved with a first flow-stopping valve piece, is provided with a first adjusting valve piece and a second adjusting valve piece, the first adjusting valve piece and the second adjusting valve piece are respectively provided with a first valve piece hole and a second valve piece hole, the adjuster first end cover is rotationally connected with a damping adjustment screw rod, and the flow-stopping valve is mounted in a flow-stopping valve mounting hole. From the shock absorber to the oil tank, oil flows through the adjusting valve; from the oil tank to the shock absorber, oil flows through the flow-stopping valve; the damping adjustment screw rod can be used for rotating and adjusting the second adjusting valve piece, the flow-through cross section is adjusted, and the damping force of the shock absorber can be quickly, accurately and reliably adjusted.

Description

Technical Field

[0001] The invention belongs to the technical field of shock absorber systems, in particular to a shock absorber damping regulator and a shock absorber system. Background Art

[0002] Shock absorbers are devices used to suppress or reduce vibrations. They are widely used in various mechanical and vehicle systems to improve equipment stability and comfort. Their basic function is to reduce the system's vibration amplitude by dissipating vibration energy, thereby improving operating performance and extending service life. In the automotive industry, shock absorbers are primarily used in suspension systems, where their primary function is to suppress the oscillations caused by spring rebound after shock absorption and impact from the road, thereby improving the vehicle's ride smoothness and comfort.

[0003] Currently, in the process of adjusting the handling stability and smoothness of commercial vehicle chassis, how to quickly and accurately adjust the damping force of the shock absorber has become a major problem that troubles technicians.

[0004] CDC (Continuous Damping Control) is a shock absorber in an automotive damping system that automatically recognizes road conditions. It uses a program to control internal current flow to create a new oil circuit, adjusting the restoring and compression damping forces. It can be used for vehicle chassis tuning. However, CDC shock absorbers have a complex structure, requiring program rewrites when operating conditions change, making operation difficult. Compared to mechanical damping force adjustment, they are less reliable and more expensive than traditional shock absorbers.

[0005] There is also a method of manually adjusting the shock absorber valve plate combination, which adjusts the shock absorber damping force by continuously replacing the valve plate combination inside the detachable shock absorber. Its use cost is low, but adjusting the shock absorber valve plate combination not only requires the trainer to have rich experience, but also takes a long time and has extremely low work efficiency. Summary of the Invention

[0006] In order to solve the problem that the damping force of the shock absorber cannot be adjusted quickly, accurately and reliably during the current adjustment process of the handling stability and ride comfort of the commercial vehicle chassis, the present invention provides a shock absorber damping adjuster and a shock absorber system.

[0007] On the one hand, the present invention is achieved through the following technical solutions:

[0008] A shock absorber damping regulator comprises a regulator base, a regulating valve, and a stop valve; a regulating valve mounting hole and a stop valve mounting hole are formed in the regulator base, and a first regulator end cap and a second regulator end cap are respectively sealed and mounted on the front and rear ends of the regulator base; and an end cap interface is respectively provided on the first regulator end cap and the second regulator end cap;

[0009] The regulating valve includes a regulating valve base which is positioned and sealed with the regulating valve mounting hole, a regulating valve guide rod is installed through the middle of the regulating valve base, and a regulating valve channel which runs through the regulating valve base from front to back is provided; a first flow-check valve disc which can block the rear end of the regulating valve channel is slidably sleeved on the regulating valve guide rod, and a first spring which presses the first flow-check valve disc toward the rear end of the regulating valve base; a first regulating valve disc and a second regulating valve disc which can block the front end of the regulating valve channel are installed on the regulating valve guide rod, and corresponding arc-shaped first valve disc holes and second valve disc holes are respectively provided on the first regulating valve disc and the second regulating valve disc, and a damping adjustment screw which can rotatably adjust the second regulating valve disc is screwed on the first end cover of the regulator;

[0010] The stop valve is installed in the stop valve installation hole and is used for one-way flow from back to front.

[0011] A further improvement of the present invention is that the stop valve includes a stop valve base that is positioned and sealed with the stop valve mounting hole, a stop valve guide rod is installed through the middle of the stop valve base, and a stop valve channel that passes through the stop valve base is opened; a second stop valve plate that can block the front end of the stop valve channel is slidably mounted on the stop valve guide rod, and a second spring that presses the second stop valve plate toward the front end of the stop valve base is mounted on the stop valve guide rod.

[0012] A further improvement of the present invention is that a sleeve is connected to a side of the second regulating valve disc away from the first regulating valve disc, and a slot is provided on the sleeve; a pin is positioned and installed on the damping adjusting screw to engage with the slot.

[0013] A further improvement of the present invention is that a damping adjustment screw locking nut is screwed onto the damping adjustment screw and abuts against the outer side of the first end cover of the regulator.

[0014] A further improvement of the present invention is that an operating notch is provided at the outer end of the damping adjustment screw.

[0015] A further improvement of the present invention is that two second tightening nuts that fit in with each other are screwed onto the regulating valve guide rod and are used to press-fit the second regulating valve plate to limit its position.

[0016] A further improvement of the present invention is that a first gasket is slidably mounted on the regulating valve guide rod and abuts against a side of the first spring away from the first flow check valve plate, and a first tightening nut is screwed on the guide rod to limit the abutment of the first gasket.

[0017] A further improvement of the present invention is that the stop valve guide rod is slidably installed through the middle of the stop valve base, and one side of the second spring is supported on the rear end of the stop valve base; a fourth tightening nut for limiting the second stop valve plate and a third tightening nut for abutting the other side of the second spring are screwed on the stop valve guide rod, and a second gasket is provided between the third tightening nut and the second spring.

[0018] Another aspect of the present invention is achieved through the following technical solutions:

[0019] A shock absorber system includes a cylindrical shock absorber body, an oil storage tank and two shock absorber damping adjusters; the shock absorber body includes a cylinder, a piston rod and a piston, and the two ends of the cylinder are provided with a first interface and a second interface respectively connected to the end cover interfaces of the first end covers of the adjusters on the two damping adjusters, and the end cover interfaces of the second end covers of the adjusters on the two damping adjusters are connected to the oil storage tank.

[0020] A further improvement of the present invention is that the shock absorber body and the oil storage tank are respectively connected to the two damping adjusters through connecting hoses.

[0021] It can be seen from the above technical solutions that the beneficial effects of the present invention are:

[0022] When in use, the front ends of the two damping adjusters (the end cover interface of the first end cover of the adjuster) are connected to the two interfaces of the shock absorber body, and the rear ends of the two damping adjusters (the end cover interface of the second end cover of the adjuster) are connected to the oil storage tank; when the corresponding shock absorber body cavity is compressed, the oil enters from the end cover interface of the first end cover of the adjuster of one damping adjuster. Since the check valve is a one-way flow structure from back to front, the oil can only enter the regulating valve channel from the second valve plate hole and the first valve plate hole, thereby pushing the first check valve plate to slide backward (overcoming the elastic force of the first spring) to enable the oil to flow out from the end cover interface of the second end cover of the regulator; at the same time, the other damping adjuster is on the return oil channel, and the oil in the oil storage tank enters from the end cover interface of the second end cover of the adjuster of the other damping adjuster. Since the first check valve plate blocks the regulating valve channel, the oil only returns to the shock absorber body from the one-way check valve, and the return oil flow is large. By rotating the damping adjustment screw, the second regulating valve disc can be adjusted, thereby adjusting the degree of overlap between the first and second valve disc holes. This allows for convenient adjustment of the flow cross section, enabling fast, accurate, and reliable adjustment of the shock absorber's damping force. The overall structure is simple and mechanical, ensuring stable and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a damping regulator according to a specific embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of an explosion of a damping regulator according to a specific embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram from the first perspective of the arrangement of the regulating valve and the stop valve according to a specific embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram from a second perspective of the arrangement of the regulating valve and the stop valve according to a specific embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of an explosion of a regulating valve according to a specific embodiment of the present invention.

[0029] Figure 6 It is a schematic structural diagram of a regulating valve according to a specific embodiment of the present invention.

[0030] Figure 7 Schematic diagram of the explosion of the stop valve according to a specific embodiment of the present invention.

[0031] Figure 8 Schematic diagram of the stop valve structure according to a specific embodiment of the present invention.

[0032] Figure 9 Schematic diagram of a shock absorber system according to a specific embodiment of the present invention.

[0033] Figure 10 This is a schematic diagram of an explosion of a shock absorber body according to a specific embodiment of the present invention.

[0034] Figure 11 This is a schematic structural diagram of a shock absorber body according to a specific embodiment of the present invention.

[0035] In the accompanying drawings: 1. shock absorber body, 101. cylinder, 102. piston rod nut, 103. piston ring, 104. piston, 105. end cover, 106. piston rod, 107. first interface, 108. second interface, 2. connecting hose, 3. damping adjuster, 301. first end cover of the adjuster, 302. locking nut of the damping adjusting screw, 303. connecting bolt, 304. damping adjusting screw, 3041. bayonet, 3042. operating notch, 305. regulating valve, 3051. regulating valve base, 3052. regulating valve guide rod, 3053. first regulating valve disc, 3054. second regulating valve disc, 3055. first valve disc hole, 305 6. Second valve disc hole, 3057. Slot, 3058. First stop valve disc, 3059. First spring, 30510. First gasket, 30511. Guide rod fixing nut, 30512. First tightening nut, 30513. Second tightening nut, 30514. Control valve channel, 306. Regulator base, 307. Stop valve, 3071. Stop valve base, 3072. Stop valve guide rod, 3073. Second spring, 3074. Second gasket, 3075. Third tightening nut, 3076. Second stop valve disc, 3077. Fourth tightening nut, 3078. Stop valve channel, 308. Second end cover of regulator, 4. Oil storage tank. DETAILED DESCRIPTION

[0036] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0037] like Figure 1-8 As shown, the present invention discloses a shock absorber damping regulator, comprising a regulator base 306, a regulating valve 305, and a stop valve 307. A regulating valve mounting hole and a stop valve mounting hole are provided in the regulator base 306, and a first regulator end cover 301 (at the front end) and a second regulator end cover 308 (at the rear end) are respectively sealed and mounted on the front and rear ends of the regulator base 306 via a plurality of connecting bolts 303. The first regulator end cover 301 and the second regulator end cover 308 are respectively provided with end cover interfaces.

[0038] The regulating valve 305 includes a cylindrical regulating valve base 3051 which is positioned and sealed with the regulating valve mounting hole. A regulating valve guide rod 3052 is positioned and installed in the middle of the regulating valve base 3051 (along its axis). The regulating valve base 3051 is provided with a plurality of regulating valve channels 30514 which are connected front to back. A first flow-stop valve disc 3058 which can block the rear end of the regulating valve channel 30514 is slidably mounted on the regulating valve guide rod 3052 (at the rear). A first spring 3059 which presses the first flow-stop valve disc 3058 toward the rear end of the regulating valve base 3051 is mounted on the regulating valve guide rod 3052 (at the front). The first and second regulating valve discs 3053 and 3054 are blocked at the front end of 514. The second regulating valve disc 3054 is located in front of the first regulating valve disc 3053. The first regulating valve disc 3053 is locked in place by a protrusion on its edge with a groove on the regulating valve base 3051 (the first regulating valve disc 3053 cannot rotate). The first and second regulating valve discs 3053 and 3054 are respectively provided with corresponding arc-shaped first and second valve disc holes 3055 and 3056. The first valve disc hole 3055 is connected to the regulating valve channel 30514. A damping adjustment screw 304 is installed through the rotary seal on the first end cover 301 of the regulator, which can adjust the rotation of the second regulating valve disc 3054.

[0039] The stop valve 307 is installed in the stop valve installation hole for one-way flow from back to front.

[0040] When using, please refer to Figure 9The front ends of the two damping adjusters 3 (the end cover interface of the first end cover 301 of the adjuster) are connected to the two interfaces of the shock absorber body 1, and the rear ends of the two damping adjusters 3 (the end cover interface of the second end cover 308 of the adjuster) are connected to the oil storage tank 4; when the corresponding shock absorber body 1 cavity is compressed, the oil enters from the end cover interface of the first end cover 301 of the adjuster of a damping adjuster 3. Since the stop valve 307 is a one-way flow structure from back to front, the oil can only enter the adjuster from the second valve plate hole 3056 and the first valve plate hole 3055. The throttle valve passage 30514 pushes the first check valve disc 3058 backward (overcoming the force of the first spring 3059), allowing oil to flow out of the end cap interface of the second end cap 308 of the regulator. Simultaneously, oil from the oil reservoir 4 enters the oil return passage of the other damping regulator 3 through the end cap interface of the second end cap 308 of the regulator. Because the first check valve disc 3058 blocks the regulating valve passage 30514, oil returns only to the shock absorber body 1 through the one-way check valve 307, resulting in a high return oil flow. By rotating the damping adjustment screw 304, the second regulating valve disc 3054 can be adjusted to varying degrees of overlap between the first valve disc hole 3055 and the second valve disc hole 3056, enabling convenient adjustment of the flow cross section and enabling fast, precise, and reliable adjustment of the shock absorber's damping force. The overall structure is simple and mechanical, ensuring stable and reliable operation.

[0041] Further, such as Figure 5-6 As shown, the regulating valve guide rod 3052 is provided with a boss that can abut against one end of the regulating valve base 3051, and the regulating valve guide rod 3052 is screwed with a guide rod fixing nut 30511 that abuts against the other end of the regulating valve base 3051, thereby realizing convenient disassembly and reliable positioning installation of the regulating valve guide rod 3052 and the regulating valve base 3051.

[0042] Furthermore, a first washer 30510 is slidably mounted on the regulating valve guide rod 3052, abutting against the side of the first spring 3059 away from the first flow check valve disc 3058. A first tightening nut 30512 is screwed onto the regulating valve guide rod 3052 to limit the abutment of the first washer 30510. The first washer 30510 ensures a secure press-fit of the first spring 3059, while the first tightening nut 30512 allows for convenient adjustment of the elastic pressure exerted by the first spring 3059 on the first flow check valve disc 3058. This results in a simple structure, easy implementation, and convenient use.

[0043] like Figure 1 、 2As shown in Figures 3, 4, 7, and 8, the stop valve 307 includes a stop valve base 3071 positioned and sealed with the stop valve mounting hole. A stop valve guide rod 3072 is installed through the middle of the stop valve base 3071 (along its axis). The stop valve base 3071 is provided with a plurality of stop valve passages 3078 extending from front to back. A second stop valve disc 3076 is slidably mounted on the stop valve guide rod 3072, which is capable of blocking the front ends of the stop valve passages 3078. A second spring 3073 is mounted on the stop valve guide rod 3072, pressing the second stop valve disc 3076 toward the front end of the stop valve base 3071. The second spring 3073 cooperates with the second stop valve disc 3076 to achieve one-way flow from back to front and block flow from front to back. The stop valve 307 has a simple structure and is easy to assemble and disassemble.

[0044] Furthermore, a stop valve guide rod 3072 is slidably mounted through the middle of the stop valve base 3071, with one side of the second spring 3073 supported at the rear end of the stop valve base 3071. A fourth tightening nut 3077 is screwed onto the stop valve guide rod 3072 to limit the position of the second stop valve disc 3076, and a third tightening nut 3075 abuts the other side of the second spring 3073. A second gasket 3074 is disposed between the third tightening nut 3075 and the second spring 3073. The second spring 3073 and the first spring 3059 are mounted on the same side, creating a reasonable layout and saving space. The second gasket 3074 provides reliable support for the second spring 3073, while the third tightening nut 3075 allows for convenient adjustment of the elastic pressure exerted by the second spring 3073 on the second stop valve disc 3076. This results in a simple structure, easy implementation, and convenient use.

[0045] In one embodiment, the regulating valve base 3051 is screwed and installed with the regulating valve mounting hole, and the stop valve base 3071 is screwed and installed with the stop valve mounting hole, thereby achieving reliability in the connection and installation of the regulating valve 305 and the stop valve 307.

[0046] In another embodiment, a ring platform is provided at one end of the regulating valve mounting hole and the stop valve mounting hole. After the regulating valve base 3051 and the stop valve base 3071 are respectively installed, a limiting clamping ring is clamped into the other end of the regulating valve mounting hole and the stop valve mounting hole to achieve convenient installation of the regulating valve 305 and the stop valve 307.

[0047] The regulating valve channel 30514 (stop valve channel 3078) has a fan-shaped cross-section and is distributed in a ring array, ensuring the structural strength of the regulating valve base 3051 (stop valve base 3071) while achieving smooth flow of oil and easy processing and molding; a ring platform is provided at the front end of the regulating valve channel 30514 to support and seal the first regulating valve disc 3053, so that the first regulating valve disc 3053 is at a certain distance from the port of the regulating valve channel 30514, effectively ensuring that the first valve disc hole 3055 is connected to all the regulating valve channels 30514.

[0048] A sleeve (welded or integrally formed) is connected to the side of the second regulating valve disc 3054 away from the first regulating valve disc 3053. The sleeve has two symmetrical axial slots 3057. A latch 3041 is positioned and mounted on the damping adjustment screw 304, engaging with the slots 3057. With the latch 3041 engaged in the slots 3057 (which have a certain depth), the second regulating valve disc 3054 can be easily adjusted when the damping adjustment screw 304 is rotated.

[0049] A damping adjustment screw lock nut 302 is screwed onto the damping adjustment screw 304 and abuts against the outside of the regulator first end cap 301. The damping adjustment screw lock nut 302 tightens the damping adjustment screw 304 to prevent it from rotating freely. A sealing gasket is press-fitted between the damping adjustment screw lock nut 302 and the regulator first end cap 301 to prevent oil leakage.

[0050] like Figure 4 As shown, an operating notch 3042 is provided at the outer end of the damping adjustment screw 304. The operating notch 3042 is in a cross shape, a slotted shape, etc., so as to facilitate rotation and adjustment using tools such as a screwdriver.

[0051] like Figure 5-6 As shown, two second tightening nuts 30513 are screwed onto the front end of the regulating valve guide rod 3052 to limit the pressure-fitting position of the second regulating valve disc 3054. By adjusting the position of the second tightening nuts 30513, the pressure-fitting position of the second regulating valve disc 3054 can be limited. This ensures that the second regulating valve disc 3054 is tightly pressed against the first regulating valve disc 3053 without any gaps, while also ensuring that the second regulating valve disc 3054 can rotate relative to the first regulating valve disc 3053 effortlessly.

[0052] like Figure 9-11 The present invention also discloses a shock absorber system, including a cylindrical shock absorber body 1, an oil storage tank 4 and two shock absorber damping adjusters; the shock absorber body 1 includes a cylinder 101, an end cover 105 installed on the upper end of the cylinder 101, a piston rod 106 sliding through the end cover 105, a piston 104 connected to the lower end of the piston rod 106 and a piston ring 103 installed on the piston 104, and the piston 104 is press-fitted and positioned by a piston rod nut 102; the upper and lower ends of the cylinder 101 are provided with a first interface 107 and a second interface 108 respectively connected to the end cover interface of the first end cover 301 of the regulator on the two damping adjusters 3, and the end cover interface of the second end cover 308 of the regulator on the two damping adjusters 3 is connected to the oil storage tank 4.

[0053] Cylinder 101 is divided into an upper chamber A and a lower chamber B by piston 104. When the shock absorber body 1 recovers and stretches, piston 104 moves upward, reducing the volume of chamber A. The oil in chamber A flows toward the upper damping adjuster 3, entering the regulating valve passage 30514 through the second valve disc hole 3056 and the first valve disc hole 3055. This pushes the first check valve disc 3058 to slide backward (overcoming the force of the first spring 3059), and then enters the oil reservoir 4 through the end cover interface of the second end cover 308 of the adjuster. Oil from the oil reservoir 4 enters the end cover interface of the second end cover 308 of the lower damping adjuster 3. Because the first check valve disc 3058 blocks the regulating valve passage 30514, the oil returns only to chamber B of the shock absorber body 1 through the one-way check valve 307. When the shock absorber body 1 is compressed, the same principle applies. The damping force of the shock absorber body 1 during the recovery of tension and compression can be adjusted quickly, accurately and reliably.

[0054] The shock absorber body 1 and the oil storage tank 4 are respectively connected to the two damping adjusters 3 via connecting hoses 2. In order to ensure the smooth flow of oil, the connecting hoses 2 themselves have a certain buffering performance.

[0055] When the present shock absorber damping adjuster and shock absorber system are in use, the front ends of the two damping adjusters 3 (end cover interface of the first end cover 301 of the adjuster) are connected to the two interfaces of the shock absorber body 1, and the rear ends of the two damping adjusters 3 (end cover interface of the second end cover 308 of the adjuster) are connected to the oil storage tank 4; when the corresponding shock absorber body 1 cavity is compressed, the oil enters from the end cover interface of the first end cover 301 of the adjuster of a damping adjuster 3, and since the stop valve 307 is a one-way flow structure from back to front, the oil can only flow out from the second valve plate hole 3056 and the first valve plate hole 306. The disc hole 3055 enters the regulating valve passage 30514, pushing the first check valve disc 3058 backward (overcoming the force of the first spring 3059), allowing oil to flow out through the end cap interface of the second end cap 308 of the regulator. Simultaneously, oil from the oil reservoir 4 enters the oil return passage of the other damping adjuster 3 through the end cap interface of the second end cap 308 of the other damping adjuster 3. Because the first check valve disc 3058 blocks the regulating valve passage 30514, oil returns only to the shock absorber body 1 through the one-way check valve 307, resulting in a high return oil flow rate. By rotating the damping adjustment screw 304, the second regulating valve disc 3054 can be adjusted, thereby adjusting the degree of overlap between the first valve disc hole 3055 and the second valve disc hole 3056. This allows for convenient adjustment of the flow cross section, enabling fast, precise, and reliable adjustment of the shock absorber's damping force. The overall structure is simple and mechanical, ensuring stable and reliable operation.

[0056] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0057] The terms "upper," "lower," "outer," "inner," and the like, if used in the present description and claims, and in the accompanying drawings, are used to distinguish relative positions and are not necessarily qualitative. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0058] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shock absorber damping regulator, characterized in that: The invention comprises a regulator base (306), a regulating valve (305) and a stop valve (307); a regulating valve mounting hole and a stop valve mounting hole are provided in the regulator base (306), and a regulator first end cover (301) and a regulator second end cover (308) are respectively sealed and installed at the front and rear ends of the regulator base (306); and an end cover interface is respectively provided on the regulator first end cover (301) and the regulator second end cover (308); The regulating valve (305) comprises a regulating valve base (3051) which is positioned and sealed with the regulating valve mounting hole. A regulating valve guide rod (3052) is installed through the middle of the regulating valve base (3051). A regulating valve channel (30514) which is connected to the regulating valve base (3051) is provided on the regulating valve base (3051). A first stop valve disc (3058) which can block the rear end of the regulating valve channel (30514) is slidably mounted on the regulating valve guide rod (3052). The first stop valve disc (3058) is also mounted with a pressure relief valve to press the first stop valve disc (3058) toward the rear end of the regulating valve base (3051). a first spring (3059) for closing the regulating valve; a first regulating valve disc (3053) and a second regulating valve disc (3054) capable of blocking the front end of the regulating valve channel (30514) are installed on the regulating valve guide rod (3052); the first regulating valve disc (3053) and the second regulating valve disc (3054) are respectively provided with corresponding arc-shaped first valve disc holes (3055) and second valve disc holes (3056); a damping adjustment screw (304) capable of rotationally adjusting the second regulating valve disc (3054) is screwed onto the first end cover (301) of the regulator; The stop valve (307) is installed in the stop valve installation hole and is used for one-way flow from back to front.

2. The shock absorber damping adjuster according to claim 1, characterized in that: The stop valve (307) comprises a stop valve base (3071) which is positioned and sealed with the stop valve mounting hole. A stop valve guide rod (3072) is installed through the middle of the stop valve base (3071). A stop valve passage (3078) which passes through the stop valve base (3071) is provided. A second stop valve disc (3076) which can block the front end of the stop valve passage (3078) is slidably mounted on the stop valve guide rod (3072). A second spring (3073) which presses the second stop valve disc (3076) toward the front end of the stop valve base (3071) is mounted on the stop valve guide rod (3072).

3. The shock absorber damping adjuster according to claim 1, characterized in that: A sleeve is connected to the side of the second regulating valve disc (3054) away from the first regulating valve disc (3053), and a clamping groove (3057) is provided on the sleeve; a clamping pin (3041) is positioned and installed on the damping regulating screw (304) and is engaged with the clamping groove (3057).

4. The shock absorber damping adjuster according to claim 1, characterized in that: A damping adjustment screw locking nut (302) is screwed onto the damping adjustment screw (304) and abuts against the outer side of the regulator first end cover (301).

5. The shock absorber damping adjuster according to claim 1, characterized in that: An operating notch (3042) is provided at the outer end of the damping adjustment screw (304).

6. The shock absorber damping adjuster according to claim 1, characterized in that: Two second tightening nuts (30513) that fit in contact with each other are screwed onto the regulating valve guide rod (3052) and are used to press-fit and limit the second regulating valve plate (3054).

7. The shock absorber damping adjuster according to claim 1, characterized in that: A first gasket (30510) is slidably mounted on the regulating valve guide rod (3052) and abuts against the side of the first spring (3059) away from the first flow-check valve plate (3058), and a first tightening nut (30512) is screwed on to limit the abutment of the first gasket (30510).

8. The shock absorber damping adjuster according to claim 2, characterized in that: The stop valve guide rod (3072) is slidably installed in the middle of the stop valve base (3071), and one side of the second spring (3073) is supported on the rear end of the stop valve base (3071); a fourth tightening nut (3077) for limiting the second stop valve plate (3076) and a third tightening nut (3075) for abutting the other side of the second spring (3073) are screwed onto the stop valve guide rod (3072), and a second gasket (3074) is provided between the third tightening nut (3075) and the second spring (3073).

9. A shock absorber system, characterized in that: The invention comprises a cylindrical shock absorber body (1), an oil storage tank (4) and two shock absorber damping regulators according to any one of claims 1 to 8; the shock absorber body (1) comprises a cylinder (101), a piston rod (106) and a piston (104); two ends of the cylinder (101) are provided with a first interface (107) and a second interface (108) respectively connected to the end cover interfaces of the first end covers (301) of the regulators on the two damping regulators (3); the end cover interfaces of the second end covers (308) of the regulators on the two damping regulators (3) are connected to the oil storage tank (4).

10. The shock absorber system according to claim 9, characterized in that The shock absorber body (1) and the oil storage tank (4) are respectively connected to the two damping adjusters (3) via connecting hoses (2).

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