Self-adaptive damping regulating valve and damping device thereof

Abstract

The utility model discloses a self-adaptive damping regulating valve and a self-adaptive damping shock absorption device. The self-adaptive damping regulating valve comprises a valve cover, a valve rod mechanism, a valve body mechanism and a first sealing ring, a valve hole is formed in the valve cover; the top of the valve body mechanism is in threaded connection with the bottom of the valve hole; the valve rod mechanism is rotationally connected into the valve hole; a first sealing ring sealed with an external oil cavity is arranged on the peripheral side of the valve body mechanism, and a first oil passing hole vertically penetrating through the valve body mechanism and a second oil passing hole transversely penetrating into the first oil passing hole are formed in the valve body mechanism. The peripheral side of the bottom of the valve rod mechanism is in threaded connection with the first oil passing hole, and the bottom extends to the second oil passing hole; a third oil passing hole and a fourth oil passing hole are distributed in the valve body mechanism along the circumference of the first oil passing hole; the top face of the third oil passing hole is sealed through a first elastic valve block assembly, and the bottom face of the fourth oil passing hole is sealed through a second elastic valve block assembly. Damping adjustment can be achieved in the oil passing process and the oil returning process, and the instant springback speed of the shock absorber and rapid impact caused by springback are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorbers, and in particular relates to an adaptive damping regulating valve and a shock absorbing device thereof. Background Art

[0002] The role of vehicle shock absorbers is very important. They can quickly reduce the impact and vibration caused by changes in vehicle speed, load and various road conditions, automatically adjust the vibration resistance to the best technical state, greatly improve the shock absorption performance of motorcycles, and improve the adaptability, comfort, stability and safety of motorcycle riding to varying degrees. At present, shock absorbers generally include an oil storage cylinder and a spring. The oil storage cylinder is filled with oil. When the shock absorber is subjected to external impact and vibration, the spring will be compressed; when the impact and vibration disappear, the spring will rebound rapidly under its own recovery action. Therefore, people inject oil into the oil storage cylinder to alleviate the rapid rebound of the spring. By designing a circulating oil circuit, when the spring rebounds, the oil flows from one cavity to another through the valve hole. The flow of oil in the circulating oil circuit can absorb the rebound force of the spring, prolong the rebound time of the spring, improve the shock absorption performance of the shock absorber, and improve the stability and comfort of motorcycle riding. In addition, the damping adjustment structure is set on the shock absorber to adjust the oil flow of the valve hole, thereby increasing or reducing the resistance of the spring, thereby adjusting the length of the spring recovery time.

[0003] Chinese patent CN200620033497.8 discloses a motorcycle spring hydraulic damping shock absorber, which is composed of a working cylinder, a piston valve system, an oil seal, a piston rod assembly, high-pressure gas, hydraulic oil, a restoring adjustment block and a compression adjustment seat. The size of the restoring damping force is adjusted by changing the size of the damping hole channel in the restoring adjustment block. The working cylinder is filled with hydraulic oil and is divided into two parts by the compression adjustment seat. The size of the gap in the damping cavity in the compression adjustment seat is changed to adjust the compression damping force. The shock absorber makes up for the deficiency of the existing shock absorber that the spring damping force and the hydraulic damping force cannot be adjusted at the same time.

[0004] Chinese patent CN202322857886.9 discloses a shock absorber damping assembly and a shock absorber, wherein the shock absorber damping assembly includes a high-speed regulating valve and a low-speed regulating valve, wherein the high-speed regulating valve includes a first valve body and a valve plate base, a spring and an adjusting member assembled in sequence in a chamber of the first valve body, and the compression amount of the spring is adjusted by adjusting the relative position between the adjusting member and the first valve body through a thread; the low-speed regulating valve includes a second valve body and an adjusting rod and a connecting member arranged in the chamber of the second valve body, and the adjusting rod moves toward or away from the first through hole to adjust the gap between the adjusting rod and the first through hole, which can improve the convenience of adjusting the damping of the shock absorber.

[0005] However, the prior art similar to the above-mentioned patents only adjusts the damping of the impact force in the oil-flowing direction of the shock absorber, but does not have a corresponding function in the oil-returning direction. This situation causes the impact of the instantaneous rebound of the shock absorber to cause a large bump in the vehicle body, greatly affecting the driving experience. Summary of the invention

[0006] The utility model provides an adaptive damping regulating valve and a shock absorbing device thereof, which can realize damping adjustment in both oil passing and oil returning processes, reduce the instantaneous rebound speed of the shock absorber and the speed impact caused by the rebound, avoid large-scale bumps of the vehicle body, and improve the driving experience.

[0007] In order to achieve the above-mentioned purpose, the utility model provides an adaptive damping regulating valve on the one hand, and the specific technical solution adopted is:

[0008] The invention comprises a valve cover, a valve stem mechanism, a valve body mechanism, a first sealing ring and a second sealing ring; the valve cover is provided with a valve hole, and the top of the valve body mechanism is threadedly connected to the bottom of the valve hole; the valve stem mechanism is rotatably connected in the valve hole, and the valve stem mechanism and the valve hole are sealed by a second sealing ring; the outer peripheral side of the valve body mechanism is provided with a first sealing ring that seals with the external shock absorber oil chamber to separate the external oil chamber into a separate upper oil chamber and a lower oil chamber, the valve body mechanism is provided with a first oil hole that passes vertically through and a second oil hole that passes horizontally through the first oil hole, and the second oil hole is located at the upper In the oil chamber, the first oil hole and the second oil hole connect the upper oil chamber and the lower oil chamber; the bottom circumference of the valve stem mechanism is threadedly connected to the first oil hole, and the bottom extends to the second oil hole, and the valve stem mechanism rotates and rises to adjust the opening size between the second oil hole and the first oil hole; the third oil hole and the fourth oil hole that can connect the upper oil chamber and the lower oil chamber are distributed along the circumference of the first oil hole on the valve body mechanism; the top surface of the third oil hole is sealed by the first elastic valve plate assembly, and the bottom surface of the fourth oil hole is sealed by the second elastic valve plate.

[0009] Furthermore, the valve body mechanism includes a high-speed channel valve body, a low-speed channel valve body, a valve plate spring fixing cover, a first elastic valve plate assembly, a second elastic valve plate assembly and an elastic member; the first sealing ring is arranged on the outer peripheral side of the high-speed channel valve body; a central axis hole is arranged in the center of the high-speed channel valve body, and a plurality of third oil holes and a plurality of fourth oil holes are distributed circumferentially on the circumference of the central axis hole and penetrate through the upper and lower parts, and the fourth oil holes are distributed alternately with the third oil holes; the top surface of the third oil hole is convexly arranged on the top surface of the fourth oil hole, and the bottom surface of the fourth oil hole is convexly arranged on the bottom surface of the third oil hole; the low-speed channel valve body passes through the central axis hole and is threadedly connected to the valve plate spring fixing cover; the first elastic valve plate assembly is sleeved on the low-speed channel valve body, and is passed through The low-speed channel valve body is pressed against the top surface of the high-speed channel valve body, and the first elastic valve plate assembly is tightly attached to the top surface of each of the third oil-through holes; the first elastic valve plate assembly and the top surface of each of the fourth oil-through holes are spaced apart; the elastic member and the second elastic valve plate assembly are sleeved on the valve plate spring fixing cover, and the second elastic valve plate assembly is pressed against the bottom surface of the high-speed channel valve body through the elastic member to seal the fourth oil-through hole, and the bottom surface of the third oil-through hole and the second elastic valve plate assembly are spaced apart; the first oil-through hole is arranged to pass through along the central axis of the low-speed channel valve body, and the second oil-through hole passes through the middle of the low-speed channel valve body transversely to the first oil-through hole; the top peripheral side of the low-speed channel valve body is threadedly connected with the valve hole.

[0010] Furthermore, the first elastic valve plate assembly includes a plurality of valve plates arranged from small to large according to radius from top to bottom.

[0011] Furthermore, the valve leaf spring fixing cover is also provided with a central axis hole, and the valve leaf spring fixing cover is provided with a plurality of fifth oil holes penetrating along the circumference of the central axis hole.

[0012] Further, the valve stem mechanism includes a valve stem and a ejector pin, the valve stem is rotatably connected in the valve hole, the valve stem and the valve hole are sealed by a second sealing ring, a slot is provided on the top of the ejector pin, the bottom of the valve stem is movably matched and embedded in the slot, the top side of the ejector pin is threadedly connected to the top of the first oil hole; the bottom of the ejector pin is embedded in the first oil hole and the bottom extends to the second oil hole, and the rotation of the valve stem drives the ejector pin to move up and down along the valve body mechanism to adjust the opening size between the second oil hole and the first oil hole.

[0013] Furthermore, a valve hole is provided in the valve cover along the central axis, and the valve stem is coaxially matched and rotatably connected in the valve hole; the valve stem is provided with a transverse limiting hole, and a spring and a ball are provided in the limiting hole, and the ball is pressed toward the side wall of the valve hole by the spring, and a plurality of limiting grooves are provided on the circumference of the valve hole, and the ball falls into one of the limiting grooves to limit the relative position of the valve stem and the valve cover; a hexagonal countersunk hole is provided on the top of the valve stem.

[0014] Furthermore, a third sealing ring is provided on the outer peripheral side of the valve cover.

[0015] On the other hand, the utility model provides an adaptive damping regulating valve, including a shock absorber body, a first oil return chamber, a second oil return chamber and an air storage tank, and is characterized in that it also includes the above-mentioned adaptive damping regulating valve, the shock absorber body is connected with the first oil return chamber and the second oil return chamber in sequence through an oil channel to form a circulating oil circuit, the air storage tank is connected with the second oil return chamber, one of the adaptive damping regulating valves is sealed and connected in the first oil return chamber, and the other adaptive damping regulating valve is sealed and connected in the second oil return chamber.

[0016] The beneficial effects of the utility model are:

[0017] 1) When the hydraulic oil circulates at a small flow rate, the oil can be circulated back through the first oil hole and the second oil hole. When the hydraulic oil has a large flow instantaneous impact, the first elastic valve plate assembly or the second elastic valve plate can be opened, and then the corresponding third oil hole and fourth oil hole can be opened to release pressure. The elastic force of the first elastic valve plate assembly and the second elastic valve plate can be used to adjust the opening size of the third oil hole and the fourth oil hole in real time according to the oil pressure. In the process of circulation, the oil pressure is slowly released to a certain extent, and this release speed can be changed in conjunction with the valve stem mechanism to adjust the flow of the first oil hole and the second oil hole, thereby achieving the effect of damping adjustment.

[0018] 2) The first elastic valve plate assembly is tightly attached to the top surface of each third oil hole to limit the flow rate of the hydraulic oil in the third oil hole; the first elastic valve plate assembly is spaced apart from the top surface of each fourth oil hole, and the end of the top surface of the fourth oil hole can be used as the oil inlet end of the upper oil chamber. When the pressure in the upper oil chamber is too large, the second elastic valve plate assembly at the bottom can be flushed through the fourth oil hole to achieve pressure relief; the second elastic valve plate assembly is pressed against the bottom surface of the fourth oil hole to seal the bottom surface of the fourth oil hole and limit the flow rate of the fourth oil hole. The bottom surface of the third oil hole is spaced apart from the second elastic valve plate assembly, and the end of the bottom surface of the third oil hole can be used as the oil inlet end of the lower oil chamber. When the pressure in the lower oil chamber is too large, the first elastic valve plate assembly at the top can be flushed through the third oil hole to achieve pressure relief.

[0019] 3) Since the valve stem and the ejector pin are movably connected, when the valve stem rotates, the valve stem only rotates relative to the valve hole and does not perform any lifting or displacement movement. Only the ejector pin performs lifting or displacement movement. This design can ensure a good seal between the valve stem and the valve hole, prevent the second sealing ring from receiving longitudinal pulling force, and thus increase the service life of the second sealing ring.

[0020] 4) The shock absorber is equipped with the adaptive damping regulating valve of the utility model. When the shock absorber receives a low-speed impact, the circulating oil circuit flows through the first oil hole and the second oil hole of the adaptive damping regulating valve; when the shock absorber body receives a momentary high-speed impact, the oil pressure in the shock absorber body increases instantly, and the strong oil pressure passes through the first oil hole and the third oil hole in the adaptive damping regulating valve at the same time, and compresses the elastic piston in the air storage tank; after the elastic piston rebounds, the hydraulic oil is pushed back to the shock absorber body. At this time, the oil pressure is relatively weakened compared with the previous period, and the hydraulic oil passes through the first oil hole first. When the oil pressure is too large to pass only through the first oil hole, it enters the fourth oil hole and pushes open the second elastic valve plate assembly to achieve a large flow flow, and then during the flow process, the oil pressure can be slowed down and released to a certain extent through the adaptive damping regulating valve, and this release speed can be changed in conjunction with the valve stem mechanism to adjust the flow of the first oil hole and the second oil hole, helping the shock absorber body to slow down the instantaneous rebound speed and the instantaneous impact caused by the rebound, thereby achieving the function of damping adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 It is a front view of the utility model;

[0023] Figure 2 This is a three-dimensional view of the utility model without the valve cover;

[0024] Figure 3 It is an exploded view of the utility model;

[0025] Figure 4 A three-dimensional diagram of the high-speed channel valve body of the utility model from a front perspective;

[0026] Figure 5 A three-dimensional diagram of the high-speed channel valve body from a top-down perspective in the utility model;

[0027] Figure 6 It is a three-dimensional diagram of the low-speed channel valve body of the utility model;

[0028] Figure 7 It is a three-dimensional diagram of the valve plate spring fixing cover in the utility model;

[0029] Figure 8It is a three-dimensional diagram of the valve stem mechanism in the utility model;

[0030] Fig. 9 It is a schematic diagram of the structure installed on the shock absorber in the utility model;

[0031] Figure ID:

[0032] 1-valve cover, 2-valve stem mechanism, 3-valve body mechanism, 4-first sealing ring, 5-second sealing ring, 31-high-speed channel valve body, 32-low-speed channel valve body, 33-valve plate spring fixing cover, 34-first elastic valve plate assembly, 35-second elastic valve plate assembly, 36-elastic member, 311-center axis hole, 312-third oil hole, 313-fourth oil hole, 321 first oil hole, 322-second oil hole, 31-valve stem, 22-thrust pin, 23-spring, 24-ball, 25-hexagonal countersunk hole, 11-third sealing ring, 331-fifth oil hole, 011-shock absorber body, 012-first oil return chamber, 013-second oil return chamber, 014-air storage tank, 015-adaptive damping regulating valve. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is referred to as being "set in the middle", it does not only mean being set in the middle, as long as it is not set at both ends within the range defined by the middle. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] Reference Figures 1 to 8 As shown, an adaptive damping regulating valve comprises a valve cover 1, a valve stem mechanism 2, a valve body mechanism 3, a first sealing ring 4 and a second sealing ring 5; the valve cover 1 is provided with a valve hole, and the top of the valve body mechanism 3 is threadedly connected to the bottom of the valve hole; the valve stem mechanism 2 is rotatably connected in the valve hole, and the valve stem mechanism 2 and the valve hole are sealed by a second sealing ring 5; the outer peripheral side of the valve body mechanism 3 is provided with a first sealing ring 4 that seals with the external shock absorber oil chamber to separate the external oil chamber into a separate upper oil chamber and a lower oil chamber, the valve body mechanism 3 is provided with a first oil hole 321 that passes vertically through and a second oil hole 322 that passes horizontally through the first oil hole 321, and the second oil hole 322 is located in the In the upper oil chamber, the first oil hole 321 and the second oil hole 322 connect the upper oil chamber and the lower oil chamber; the bottom circumference of the valve stem mechanism 2 is threadedly connected to the first oil hole 321, and the bottom extends to the second oil hole 322, and the valve stem mechanism 2 rotates and rises to adjust the opening size between the second oil hole 322 and the first oil hole 321; the valve body mechanism 3 is provided with a third oil hole 312 and a fourth oil hole 313 that can connect the upper oil chamber and the lower oil chamber along the circumference of the first oil hole 321; the top surface of the third oil hole 312 is sealed by the first elastic valve plate assembly 34, and the bottom surface of the fourth oil hole is sealed by the second elastic valve plate 35. When the hydraulic oil circulates at a small flow rate, it can circulate back through the first oil hole 321 and the second oil hole 322. When the hydraulic oil has an instantaneous impact and forms a large flow, it can break open the first elastic valve plate assembly 34 or the second elastic valve plate, and then open the corresponding third oil hole 312 and the fourth oil hole 313 to release pressure. The elastic force of the first elastic valve plate assembly 34 and the second elastic valve plate 35 can be used to adjust the opening size of the third oil hole 312 and the fourth oil hole 313 in real time according to the oil pressure. In the process of circulation, the oil pressure is slowly released to a certain extent, and this release speed can be changed in conjunction with the valve stem mechanism 2 to adjust the flow of the first oil hole 321 and the second oil hole 322, thereby achieving the effect of damping adjustment.

[0037] Specifically, the valve body mechanism 3 includes a high-speed channel valve body 31, a low-speed channel valve body 32, a valve plate spring fixing cover 33, a first elastic valve plate assembly 34, a second elastic valve plate assembly 35 and an elastic member 36; the first sealing ring is arranged on the outer peripheral side of the high-speed channel valve body; a central axis hole 311 is arranged at the center of the high-speed channel valve body 31, and a plurality of third oil holes 312 and a plurality of fourth oil holes 313 are distributed around the central axis hole 311, and the fourth oil holes 313 are distributed alternately with the third oil holes 312; the third oil holes 312 are provided with a plurality of third oil holes 313, and the third oil holes 312 are provided with a plurality of fourth oil holes 313. The top surface of the fourth oil hole 313 is convexly arranged on the top surface of the fourth oil hole 313, and the bottom surface of the fourth oil hole 313 is convexly arranged on the bottom surface of the third oil hole 312; the low-speed channel valve body 32 passes through the central axis hole 311 and is threadedly connected with the valve spring fixing cover 33; the first elastic valve plate component 34 is sleeved on the low-speed channel valve body 32, and is pressed against the top surface of the high-speed channel valve body 31 through the low-speed channel valve body 32, and the first elastic valve plate component 34 is closely attached to the top surface of each of the third oil holes 312; the first elastic valve plate component includes A plurality of valve plates are arranged from small to large according to radius from top to bottom. The valve plate with a large radius is pressed against the third oil hole 312 for sealing. The valve plate with a small radius is pressed against the valve plate with a large radius. The resistance to the valve plate as a whole becomes greater as it moves toward the center, thereby achieving the function of limiting the opening of the valve plate with a large radius, thereby limiting the flow rate of the hydraulic oil in the third oil hole 312. The first elastic valve plate assembly 34 is spaced apart from the top surface of each of the fourth oil holes 313. This end of the top surface of the fourth oil hole can be used as the oil inlet end of the upper oil chamber. When the pressure in the upper oil chamber is too high, the oil can be pumped through the fourth oil hole 313. The second elastic valve disc assembly 45 at the bottom is punched open to achieve the pressure relief effect; the second elastic valve disc assembly 35 can adopt a single annular sealing gasket, the elastic member 36 and the second elastic valve disc assembly 35 are sleeved on the valve disc spring fixing cover 33, the second elastic valve disc assembly 35 is pressed against the bottom surface of the high-speed channel valve body through the elastic member 36, the elastic member 36 is set as a spring, the spring presses the second elastic valve disc assembly 45 against the bottom surface of the fourth oil hole 313 to seal the bottom surface of the fourth oil hole 313 and limit the flow of the fourth oil hole 313. The bottom surface of the third oil hole 312 is spaced apart from the second elastic valve plate assembly 35, and this end of the bottom surface of the third oil hole can be used as the oil inlet end of the lower oil chamber. When the pressure in the lower oil chamber is too large, the first elastic valve plate assembly at the top can be opened through the third oil hole, thereby achieving pressure relief; the first oil hole 321 is arranged along the central axis of the low-speed channel valve body 32, and the second oil hole 322 is laterally penetrated into the first oil hole 321 along the middle of the low-speed channel valve body 32; the top peripheral side of the low-speed channel valve body 32 is threadedly connected to the valve hole.The valve spring fixing cover 33 is also provided with a central axis hole, and the valve spring fixing cover 33 is provided with a plurality of fifth oil holes 331 penetrating the central axis hole and distributed along the circumference of the central axis hole.

[0038] The valve stem mechanism 2 includes a valve stem 21 and a pin 22. The valve stem 21 is rotatably connected in the valve hole. The valve stem 21 and the valve hole are sealed by the second sealing ring 5 to prevent the hydraulic oil from leaking out of the valve hole. A slot is provided at the top of the pin 22. The bottom of the valve stem 21 is movably matched and embedded in the slot. The top side of the pin 22 is threadedly connected to the top of the first oil hole 321. The bottom of the pin 22 is embedded in the first oil hole 321 and the bottom extends to the second oil hole 322. The rotation of the valve stem 22 drives the pin 21 to move up and down along the valve body mechanism 3 to adjust the opening size between the second oil hole 322 and the first oil hole 321. The bottom of the pin can be set as a conical mechanism. Since the valve stem and the ejector pin are movably connected, when the valve stem 21 rotates, the valve stem 21 only rotates relative to the valve hole and does not perform any lifting or displacement movement. Only the ejector pin 22 performs any lifting or displacement movement. Such a design can ensure a good seal between the valve stem 22 and the valve hole, prevent the second sealing ring 5 from receiving a longitudinal pulling force, and thus increase the service life of the second sealing ring 5.

[0039] A valve hole is provided along the central axis in the valve cover 1, and the valve stem 2 is coaxially matched and rotatably connected in the valve hole; the valve stem 2 is provided with a transverse limiting hole, and a spring 23 and a ball 24 are provided in the limiting hole. The ball 24 is pressed toward the side wall of the valve hole by the spring 23, and a plurality of limiting grooves are provided on the circumference of the valve hole. The ball 24 falls into one of the limiting grooves to limit the relative position of the valve stem 2 and the valve cover 1; a hexagonal countersunk hole 25 is provided on the top of the valve stem 2.

[0040] A third sealing ring 11 is disposed on the outer peripheral side of the valve cover 1 for sealingly connecting with the shock absorber.

[0041] Please refer to Fig. 9As shown, an adaptive damping shock absorbing device comprises a shock absorber body 011, a first oil return chamber 012, a second oil return chamber 013 and an air storage tank 014, and also comprises the above-mentioned adaptive damping regulating valve 015, wherein the shock absorber body 011 is sequentially connected with the first oil return chamber 012 and the second oil return chamber 013 through an oil passage to form a circulating oil circuit, the air storage tank is connected with the second oil return chamber, wherein one of the adaptive damping regulating valves 015 is sealed and connected in the first oil return chamber, and the other of the adaptive damping regulating valves 015 is sealed and connected in the second oil return chamber 013. The shock absorber comprises the same structure and beneficial effects as the adaptive damping regulating valve 015 in the above-mentioned embodiment. When the shock absorber receives a low-speed impact, the circulating oil circuit circulates through the first oil hole 321 and the second oil hole 322 of the adaptive damping regulating valve 015; when the shock absorber body 011 receives an instantaneous high-speed impact, the oil pressure in the shock absorber body 011 increases instantaneously, and the strong oil pressure passes through the first oil hole 321 and the third oil hole 312 in the adaptive damping regulating valve 015, and compresses the elastic piston in the air storage tank; after the elastic piston rebounds, it pushes the hydraulic oil back to the shock absorber body 011. At this time, the oil pressure is relatively weaker than in the previous period, and the hydraulic oil is preferentially discharged from the first and second oil holes 321 and 322. When the oil pressure is too high to pass through the first oil hole 321 alone, the oil enters the fourth oil hole 313, pushing open the second elastic valve plate 45 assembly to achieve a large flow rate. The oil pressure can be released to a certain extent through the adaptive damping regulating valve 015 during the flow process, and the release speed can be changed in conjunction with the valve stem mechanism 2 to adjust the flow rates of the first oil hole 321 and the second oil hole 322, thereby helping the shock absorber body 011 to slow down the instantaneous rebound speed and the instantaneous impact caused by the rebound, thereby achieving the damping adjustment effect.

[0042] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. An adaptive damping regulating valve, characterized in that: The invention comprises a valve cover, a valve stem mechanism, a valve body mechanism, a first sealing ring and a second sealing ring; the valve cover is provided with a valve hole, and the top of the valve body mechanism is threadedly connected to the bottom of the valve hole; the valve stem mechanism is rotatably connected in the valve hole, and the valve stem mechanism and the valve hole are sealed by a second sealing ring; the outer peripheral side of the valve body mechanism is provided with a first sealing ring that seals with the external shock absorber oil chamber to separate the oil chamber into a separate upper oil chamber and a lower oil chamber, the valve body mechanism is provided with a first oil hole that passes vertically through and a second oil hole that passes horizontally through the first oil hole, the second oil hole is located in the upper oil chamber In the cavity, the first oil hole and the second oil hole connect the upper oil cavity and the lower oil cavity; the bottom circumference of the valve stem mechanism is threadedly connected to the first oil hole, and the bottom extends to the second oil hole, and the valve stem mechanism rotates and rises to adjust the opening size between the second oil hole and the first oil hole; the third oil hole and the fourth oil hole that can connect the upper oil cavity and the lower oil cavity are distributed along the circumference of the first oil hole on the valve body mechanism; the top surface of the third oil hole is sealed by the first elastic valve plate assembly, and the bottom surface of the fourth oil hole is sealed by the second elastic valve plate.

2. The adaptive damping regulating valve according to claim 1, characterized in that: The valve body mechanism includes a high-speed channel valve body, a low-speed channel valve body, a valve plate spring fixing cover, a first elastic valve plate assembly, a second elastic valve plate assembly and an elastic member; the first sealing ring is arranged on the outer peripheral side of the high-speed channel valve body; a central axis hole is arranged in the center of the high-speed channel valve body, and a plurality of third oil holes and a plurality of fourth oil holes are distributed circumferentially on the circumference of the central axis hole, and the fourth oil holes are distributed alternately with the third oil holes; the top surface of the third oil hole is convexly arranged on the top surface of the fourth oil hole, and the bottom surface of the fourth oil hole is convexly arranged on the bottom surface of the third oil hole; the low-speed channel valve body passes through the central axis hole and is threadedly connected to the valve plate spring fixing cover; the first elastic valve plate assembly is sleeved on the low-speed channel valve body, and is passed through the The low-speed channel valve body is pressed against the top surface of the high-speed channel valve body, and the first elastic valve plate assembly is tightly attached to the top surface of each of the third oil holes; the first elastic valve plate assembly and the top surface of each of the fourth oil holes are spaced apart; the elastic member and the second elastic valve plate assembly are sleeved on the valve plate spring fixing cover, and the second elastic valve plate assembly is pressed against the bottom surface of the high-speed channel valve body through the elastic member to seal the fourth oil hole, and the bottom surface of the third oil hole is spaced apart from the second elastic valve plate assembly; the first oil hole is arranged to penetrate along the central axis of the low-speed channel valve body, and the second oil hole penetrates transversely along the middle part of the low-speed channel valve body to the first oil hole; the top peripheral side of the low-speed channel valve body is threadedly connected with the valve hole.

3. The adaptive damping regulating valve according to claim 2, characterized in that: The first elastic valve plate assembly includes a plurality of valve plates arranged from small to large according to radius from top to bottom.

4. The adaptive damping regulating valve according to claim 2, characterized in that: The valve spring fixing cover is also provided with a central axis hole, and the valve spring fixing cover is provided with a plurality of fifth oil holes penetrating along the circumference of the central axis hole.

5. The adaptive damping regulating valve according to claim 1, characterized in that: The valve stem mechanism includes a valve stem and a ejector pin. The valve stem is rotatably connected in the valve hole. The valve stem and the valve hole are sealed by a second sealing ring. A slot is provided on the top of the ejector pin. The bottom of the valve stem is movably matched and embedded in the slot. The top side of the ejector pin is threadedly connected to the top of the first oil hole. The bottom of the ejector pin is embedded in the first oil hole and the bottom extends to the second oil hole. The rotation of the valve stem drives the ejector pin to move up and down along the valve body mechanism to adjust the opening size between the second oil hole and the first oil hole.

6. The adaptive damping regulating valve according to claim 5, characterized in that: A valve hole is provided in the valve cover along the central axis, and the valve stem is coaxially matched and rotatably connected in the valve hole; the valve stem is provided with a transverse limiting hole, and a spring and a ball are provided in the limiting hole. The ball is pressed toward the side wall of the valve hole by the spring, and a plurality of limiting grooves are provided on the circumference of the valve hole. The ball falls into one of the limiting grooves to limit the relative position of the valve stem and the valve cover; a hexagonal countersunk hole is provided on the top of the valve stem.

7. The adaptive damping regulating valve according to claim 6, characterized in that: A third sealing ring is arranged on the outer peripheral side of the valve cover.

8. An adaptive damping shock absorbing device, comprising a shock absorber body, a first oil return chamber, a second oil return chamber and an air storage tank, characterized in that: It also includes the adaptive damping regulating valve described in any one of claims 1 to 7 above, the shock absorber body is connected to the first oil return chamber and the second oil return chamber in sequence through an oil channel to form a circulating oil circuit, the air storage tank is connected to the second oil return chamber, one of the adaptive damping regulating valves is sealed in the first oil return chamber, and the other adaptive damping regulating valve is sealed in the second oil return chamber.

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