Self-adaptive regulating valve and shock absorber with same

Abstract

The utility model provides a self-adaptive adjusting valve and a shock absorber with the self-adaptive adjusting valve, and the self-adaptive adjusting valve comprises a valve seat, a valve core, a valve rod and a valve rod, and the valve seat is internally provided with an overflowing channel communicating with the outside; the valve element is movably arranged in the valve seat and used for moving under the first acting force so as to adjust the overflowing amount of the overflowing channel. The adjusting seat is rotatably arranged on the valve seat, at least one part of the adjusting seat is located in the valve seat and faces the valve element, and the adjusting seat is used for rotating under the second acting force and limiting the position of the valve element so as to limit the maximum overflowing amount of the overflowing channel; one of the valve seat and the adjusting seat is provided with a marking piece, the other one of the valve seat and the adjusting seat is provided with an indicating piece, and the indicating piece is used for being matched with the marking piece when the adjusting seat rotates so as to indicate the maximum overflowing amount of the overflowing channel. According to the valve, the adjusting seat is matched with the valve element, the maximum flow of the flow passing channel is adjusted, meanwhile, the indicating piece on the valve seat or the adjusting seat is matched with the marking piece, the maximum flow of the flow passing channel is indicated, the maximum adjusting amount is accurately controlled, and the adjusting effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of regulating valves, in particular to a self-adaptive regulating valve and a shock absorber with the same. BACKGROUND

[0002] With the development of society and the improvement of people's living standards, the number of cars is increasing. In order to improve the smoothness of the car, a shock absorber is usually installed in the suspension system to effectively suppress the repeated bouncing of the shock absorbing spring after absorbing the impact. The regulating valve, as a part of the shock absorber, changes the damping coefficient and response speed of the shock absorber by adjusting the valve, thereby adjusting the hardness of the suspension system.

[0003] However, the regulating valve of the prior art cannot display the size of the adjustment, cannot accurately control the adjustment amount, and has poor adjustment effect and needs to be improved. CONTENT OF THE INVENTION

[0004] In order to overcome the defects of the prior art, the present application provides a self-adaptive regulating valve and a shock absorber with the same, and the specific technical solutions are as follows:

[0005] A self-adaptive regulating valve, comprising:

[0006] a valve seat, the inside of the valve seat having a flow passage communicating with the outside;

[0007] a valve core movably arranged in the inside of the valve seat and used for moving under a first acting force to adjust the flow amount of the flow passage;

[0008] an adjusting seat rotatably arranged on the valve seat and at least a part of the adjusting seat being located in the inside of the valve seat and facing the valve core, used for rotating under a second acting force and limiting the position of the valve core to limit the maximum flow amount of the flow passage;

[0009] wherein one of the valve seat and the adjusting seat is provided with an identification member, and the other is provided with an indicating member, the indicating member being used for cooperating with the identification member when the adjusting seat rotates to indicate the maximum flow amount of the flow passage.

[0010] In one specific embodiment, the tail part of the valve seat has a cover plate, the adjusting seat is rotatably arranged on the cover plate, and the tail part of the adjusting seat is exposed from the cover plate;

[0011] The identification member comprises a plurality of different gear identifications, and the plurality of gear identifications are arranged in a ring array on the cover plate; the indicating member is located at the back of the adjusting seat and used for aligning any gear identification when the adjusting seat rotates to indicate the maximum flow amount of the flow passage.

[0012] In one specific embodiment, the adjusting seat comprises a rotating disc and a movable shaft, the rotating disc is rotatably arranged at the tail of the valve seat, one end of the movable shaft is connected with the rotating disc, and the other end is directed towards the valve core, the rotating disc is used to drive the movable shaft to rotate under the second force, so that the movable shaft moves along the axial direction of the valve seat to limit the position of the valve core.

[0013] In one specific embodiment, the rotating disc has a connecting portion, the movable shaft is connected with the rotating disc through the connecting portion, and the cross-sectional shape of the connecting portion comprises a non-circular shape.

[0014] In one specific embodiment, the cross-sectional shape of the connecting portion comprises an elliptical shape, a semicircular shape or a polygonal shape.

[0015] In one specific embodiment, a threaded connection structure is arranged between the movable shaft and the valve seat, the movable shaft is rotatably arranged on the valve seat through the threaded connection structure, and the movable shaft is used to move along the axial direction of the valve seat when rotating.

[0016] In one specific embodiment, the valve core has a first position and a second position, in the first position, the head of the valve core blocks the flow passage, and the tail of the valve core is separated from the head of the movable shaft; in the second position, the head of the valve core opens the flow passage, and the tail of the valve core abuts against the head of the movable shaft; the valve core is configured to move along the axial direction of the valve seat from the first position under the first force to adjust the flow rate of the flow passage, and to be limited to the second position by the movable shaft to limit the maximum flow rate of the flow passage.

[0017] In one specific embodiment, the interior of the valve seat is provided with an elastic member, the valve core is connected with the elastic member, and the elastic member is used to be compressed under the first force and to rebound when the first force is removed.

[0018] One of the valve core and the valve seat is provided with a protruding portion, and the other is provided with a limiting groove, the protruding portion and the limiting groove are matched, and the rebounding valve core is limited to the first position.

[0019] In one specific embodiment, the flow passage comprises at least two channel segments which are sequentially communicated, and the at least two channel segments are sequentially arranged along the direction from the head of the valve seat to the tail of the valve seat; along the direction from the head of the valve seat to the tail of the valve seat, the flow areas of the at least two channel segments gradually increase.

[0020] And / or, the flow passage comprises a variable-diameter segment, and the flow area of the variable-diameter segment gradually increases along the direction from the head of the valve seat to the tail of the valve seat.

[0021] A shock absorber comprises a first cylinder, a second cylinder and the adaptive regulating valve as described above, the adaptive regulating valve is connected to the first cylinder and the second cylinder respectively, and the inner cavity of the first cylinder is communicated with the inner cavity of the second cylinder through the flow passage of the adaptive regulating valve.

[0022] The present application has at least the following beneficial effects:

[0023] The present application provides an adaptive regulating valve and a shock absorber having the same, the adaptive regulating valve comprises: a valve seat, the inside of the valve seat has a flow passage communicated with the outside; a valve core, movably arranged in the inside of the valve seat, used to move under a first force to regulate the flow amount of the flow passage; an adjusting seat, rotatably arranged on the valve seat, and at least a part of the adjusting seat is located in the inside of the valve seat and faces the valve core, used to rotate under a second force and limit the position of the valve core to limit the maximum flow amount of the flow passage; wherein one of the valve seat and the adjusting seat is provided with a marking element, and the other is provided with an indicating element, the indicating element is used to cooperate with the marking element when the adjusting seat rotates to indicate the maximum flow amount of the flow passage. The present application regulates the flow amount of the flow passage by the movement of the valve core under the first force, and at the same time, the adjusting seat rotates under the second force, so as to flexibly adjust the limiting position of the valve core, so as to realize the adjustable maximum flow amount of the flow passage, which can quickly and accurately regulate the maximum flow amount of the flow passage according to different working environments and requirements, greatly improving the adaptability and application range of the equipment. Further, the marking element and the indicating element are arranged in the valve seat and the adjusting seat respectively, so that the operator can intuitively see and understand the current maximum flow amount of the flow passage when the adjusting seat rotates. This design not only simplifies the operation process and reduces the operation difficulty, but also improves the adjustment accuracy of the adaptive regulating valve, so that the adaptive regulating valve can significantly improve the shock absorbing performance of the shock absorber, thereby prolonging the service life of the equipment and reducing the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0025] Figure 1 The schematic diagram of the adaptive regulating valve provided for the present embodiment 1 is shown in the figure;

[0026] Figure 2 The exploded view of the adaptive regulating valve provided for the present embodiment 1 is shown in the figure;

[0027] Figure 3 The rear view of the adaptive regulating valve provided for the present embodiment 1 is shown in the figure;

[0028] Figure 4 A cross-sectional view of the valve core of the present embodiment 1 in the first position;

[0029] Figure 5 A cross-sectional view of the valve core of the present embodiment 1 in the second position;

[0030] Figure 6 A cross-sectional view of the present embodiment 1 without the valve core;

[0031] Figure 7 A schematic view of the present embodiment 1 of the adjusting seat after adjustment;

[0032] Figure 8 A schematic view of the present embodiment 2 of the shock absorber.

[0033] Reference signs:

[0034] 1 - valve seat; 2 - valve core; 3 - adjusting seat; 4 - identification member; 5 - indication member; 6 - flow passage; 7 - threaded connection structure; 8 - elastic member; 901 - first cylinder body; 902 - second cylinder body; 903 - self-adaptive adjusting valve;

[0035] 11 - cover plate; 12 - limiting groove; 13 - base; 14 - intermediate plate;

[0036] 101 - head of the valve seat; 102 - tail of the valve seat;

[0037] 21 - protruding part; 201 - head of the valve core; 202 - tail of the valve core;

[0038] 31 - rotating disc; 32 - movable shaft; 301 - tail of the adjusting seat; 311 - connecting part;

[0039] 41 - gear identification;

[0040] 61 - passage segment. DETAILED DESCRIPTION

[0041] Hereinafter, various embodiments of the present application will be described more fully. The present application can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present application to the specific embodiments disclosed herein, but the present application should be construed to cover all adjustments, equivalents and / or alternatives falling within the spirit and scope of the various embodiments of the present application.

[0042] Hereinafter, the term "include" or "may include" used in various embodiments of the present application indicates the presence of the disclosed functions, operations, or elements, and does not limit one or more functions, operations, or elements from being added. Also, as used in various embodiments of the present application, the terms "include", "have", and their conjugates merely indicate that specific features, numbers, steps, operations, elements, components, or combinations thereof are present, and do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

[0043] In various embodiments of the present application, the expression "or" or "at least one of A or / and B" includes any combination of the listed terms or all the terms. For example, the expression "A or B" or "at least one of A or / and B" can include A, can include B, or can include both A and B.

[0044] The expressions such as "first", "second", etc. used in various embodiments of the present application can modify various constituent elements in various embodiments, but can not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are used only for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element can be referred to as a second element, and likewise, a second element can be referred to as a first element, without departing from the scope of various embodiments of the present application.

[0045] It should be noted that in the present application, unless explicitly defined and defined otherwise, the terms "mount", "connect", "fix", etc. should be understood broadly, for example, can be fixed connection, can be detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, it is understood by those skilled in the art that the terms indicating the orientation or position relationship in the text are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0047] The terminology used in the various embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present application belong. The terms, such as terms defined in commonly used dictionaries, should be interpreted as having a meaning that is identical to the meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined in the various embodiments of the present application.

[0048] Embodiment 1

[0049] As Figure 1 , 4 , 8, an adaptive regulating valve 903 comprises:

[0050] a valve seat 1, the inside of the valve seat 1 having a flow passage 6 communicating with the outside;

[0051] a valve core 2 movably arranged in the inside of the valve seat 1, for moving under a first force to regulate the flow rate of the flow passage 6;

[0052] a regulating seat 3 rotatably arranged on the valve seat 1, and at least a part of the regulating seat 3 is located in the inside of the valve seat 1 and faces the valve core 2, for rotating under a second force and limiting the position of the valve core 2 to limit the maximum flow rate of the flow passage 6;

[0053] wherein one of the valve seat 1 and the regulating seat 3 is provided with an identification member 4, and the other is provided with an indicating member 5, the indicating member 5 being used to cooperate with the identification member 4 when the regulating seat 3 rotates, to indicate the maximum flow rate of the flow passage 6.

[0054] The present application regulates the flow rate of the flow passage 6 by the movement of the valve core 2 under the first force, and at the same time, the regulating seat 3 rotates under the second force, so as to flexibly adjust the limiting position of the valve core 2, so as to realize the adjustable maximum flow rate of the flow passage 6, which can quickly and accurately regulate the maximum flow rate of the flow passage 6 according to different working environments and requirements, greatly improving the adaptability and application range of the equipment. Further, the identification member 4 and the indicating member 5 arranged in the valve seat 1 and the regulating seat 3 respectively, so that when the regulating seat 3 rotates, the operator can intuitively see and understand the current maximum flow rate of the flow passage 6. This design not only simplifies the operation process and reduces the operation difficulty, but also improves the regulating accuracy of the adaptive regulating valve, so that the adaptive regulating valve can significantly improve the shock absorbing performance of the shock absorber, thereby prolonging the service life of the equipment and reducing the maintenance cost.

[0055] AsFigure 3 As shown, the tail part 102 of the valve seat has a cover plate 11, the adjusting seat 3 is rotatably arranged on the cover plate 11, and the tail part 301 of the adjusting seat is exposed from the cover plate 11; the marker 4 includes a plurality of different gear markers 41, and the plurality of gear markers 41 are arranged in a ring array on the cover plate 11; the indicator 5 is located at the back of the adjusting seat 3 and is used to align any gear marker 41 when the adjusting seat 3 rotates, so as to indicate the maximum flow rate of the overflow passage 6. In this application, the tail part 102 of the valve seat has a cover plate 11, which not only provides a stable support platform for the adjusting seat 3, but also enhances the stability and reliability of the entire valve seat 1 structure. The adjusting seat 3 is rotatably arranged on the cover plate 11, and its tail part is exposed from the cover plate 11. Under this design, the operator can easily rotate the adjusting seat 3 without disassembling any parts, and the structure design is reasonable; further, a plurality of different gear markers 41 are arranged in a ring array on the cover plate 11, and the indicator 5 is located at the back of the adjusting seat 3. With the rotation of the adjusting seat 3, any gear marker 41 can be accurately aligned, thereby directly indicating the current maximum flow rate of the overflow passage 6. Under this design, the operator can quickly adjust the self-adaptive regulating valve 903 to meet different working requirements and working condition changes, which not only improves the working efficiency, but also enhances the flexibility, adaptability and precision of the equipment.

[0056] As shown in Figure 4 , 7 , the adjusting seat 3 includes a rotating disc 31 and a movable shaft 32, the rotating disc 31 is rotatably arranged at the tail part 102 of the valve seat, one end of the movable shaft 32 is connected with the rotating disc 31, and the other end faces the valve core 2. The rotating disc 31 is used to drive the movable shaft 32 to rotate under the second action force, so as to move the movable shaft 32 along the axial direction of the valve seat 1 to limit the position of the valve core 2. In this application, the rotating disc 31 can accurately drive the movable shaft 32 to move along the axial direction of the valve seat 1 under the rotation of the rotating disc 31 under the second action force, thereby realizing fine adjustment of the position of the valve core 2.

[0057] As shown in Figure 3 , 7 , the rotating disc 31 has a connecting part 311, and the movable shaft 32 is connected with the rotating disc 31 through the connecting part 311. The cross-sectional shape of the connecting part 311 includes a non-circular shape. In this application, by setting the cross-sectional shape of the connecting part 311 as a non-circular shape, when the rotating disc 31 rotates under the first action force, the movable shaft 32 will also rotate, and the structure is simple and reasonable.

[0058] Specifically, the cross-sectional shape of the connecting part 311 includes an elliptical shape, a semicircular shape or a polygonal shape. Whether it is an elliptical shape, a semicircular shape or a polygonal shape, it can make the movable shaft 32 rotate when the rotating disc 31 rotates under the first action force.

[0059] In the present embodiment, the cross-sectional shape of the connecting portion 311 is hexagonal.

[0060] As shown in Figure 6 , the movable shaft 32 and the valve seat 1 are provided with a threaded connection structure 7, and the movable shaft 32 is rotatably arranged on the valve seat 1 through the threaded connection structure 7, and is used to move along the axial direction of the valve seat 1 when rotating. The threaded connection structure 7 between the movable shaft 32 and the valve seat 1 can make the movable shaft 32 rotate and move axially, so as to accurately limit the maximum movement position of the valve core 2, thereby limiting the maximum flow rate of the flow passage 6.

[0061] Specifically, as shown in Figure 2 , the valve seat 1 includes a base 13 and an intermediate plate 14, and the base 13 and the intermediate plate 14 are connected through the threaded connection 7, and the threaded connection structure 7 is arranged between the inner wall of the intermediate plate 13 and the movable shaft 32. The threaded connection of the base and the intermediate plate 14 makes the whole structure simple and easy to install.

[0062] As shown in Figure 4 , 5 , the valve core 2 has a first position and a second position, in the first position, the head 201 of the valve core blocks the flow passage 6, and the tail 202 of the valve core is separated from the head of the movable shaft 32 (as shown in Figure 4 ); in the second position, the head 201 of the valve core opens the flow passage 6, and the tail 202 of the valve core abuts against the head of the movable shaft 32 (as shown in Figure 5 ); the valve core 2 is configured to move along the axial direction under the first action force from the first position to adjust the flow rate of the flow passage 6, and is limited to the second position by the movable shaft 32 to limit the maximum flow rate of the flow passage 6. The second position is the maximum movement position of the valve core 2 adjusted by the adjusting seat 3. The valve core 2 in the present application realizes the blocking or opening of the flow passage 6 under the first action force, realizes the self-adaptive adjustment of the flow rate of the adjusting valve, and when opening, the maximum movement position is limited by the cooperation between the valve core 2 and the movable shaft 32, so as to limit the maximum flow rate of the flow passage 6, realize the accurate control of the maximum flow rate, and facilitate the rapid and accurate adjustment according to different working environments and requirements.

[0063] As shown in Figures 1-7As shown, the inner part of the valve seat 1 is provided with an elastic member 8, and the valve core 2 is connected with the elastic member 8, which is used to extrude the elastic member 8 under the first action force and rebound when the first action force is removed; one of the valve core 2 and the valve seat 1 is provided with a protruding part 21, and the other is provided with a limiting groove 12, the protruding part 21 and the limiting groove 12 are matched, which is used to limit the rebounding valve core 2 in the first position. In this application, the valve core 2 is connected with the valve seat 1 through the elastic member 8, which can extrude the elastic member 8 under the first action force, and when the action force is removed, the rebounding property of the elastic member 8 makes the valve core 2 automatically restore to the open state without additional power, which improves the response speed and efficiency of the valve. Further, the protruding part 21 and the limiting groove 12 respectively arranged on the valve core 2 or the valve seat 1 are matched with each other, which prevents the valve core 2 from deviating from the normal working position due to excessive rebounding or vibration, thereby maintaining the stability and reliability of the valve operation.

[0064] As shown in the drawings, Figure 6 The flow passage 6 includes at least two channel segments 61 which are sequentially communicated, and the at least two channel segments 61 are sequentially arranged along the head 101 of the valve seat towards the tail 102 of the valve seat; the flow area of the at least two channel segments 61 gradually increases along the head 101 of the valve seat towards the tail 102 of the valve seat; and / or the flow passage 6 includes a variable-diameter segment, and the flow area of the variable-diameter segment gradually increases along the head 101 of the valve seat towards the tail 102 of the valve seat.

[0065] In one embodiment, as shown in the drawings, Figure 6 The flow passage 6 includes at least two channel segments 61 which are sequentially communicated, and the at least two channel segments 61 are sequentially arranged along the head 101 of the valve seat towards the tail 102 of the valve seat; the flow area of the at least two channel segments 61 gradually increases along the head 101 of the valve seat towards the tail 102 of the valve seat, which can effectively reduce the resistance of the fluid when passing through the valve, and the fluid flow rate gradually decreases with the gradual increase of the channel area, thereby reducing the pressure loss and improving the overall efficiency of the fluid system.

[0066] In another embodiment, the flow passage 6 includes a variable-diameter segment (not shown in the drawings), and the flow area of the variable-diameter segment gradually increases along the head 101 of the valve seat towards the tail 102 of the valve seat, which can make the fluid smoothly transition through the gradually increasing flow area.

[0067] In other embodiments, the flow passage 6 includes at least two channel segments 61 and a variable-diameter segment, and the channel segments 61 and the variable-diameter segment are staggered and communicated, or the at least two channel segments 61 and the variable-diameter segment are sequentially arranged and communicated, which can make the fluid smoothly transition through the gradually increasing flow area.

[0068] The axis of the valve core 2, the axis of the movable shaft 32 and the axis of the valve seat 1 are the same straight line.

[0069] In the present application, the first force is fluid pressure, and the second force is mechanical driving force.

[0070] Embodiment 2

[0071] As Figure 1 , 5 , 8, a shock absorber includes a first cylinder 901, a second cylinder 902, and an adaptive adjusting valve 903, the adaptive adjusting valve 903 is connected to the first cylinder 901 and the second cylinder 902 respectively, and the inner cavity of the first cylinder 901 is communicated with the inner cavity of the second cylinder 902 through the overflow passage 6. The present application adjusts the maximum overflow of the overflow passage 6 through the identification element 4 and the indicating element 5 on the adaptive adjusting valve 903, and automatically adjusts the flow of fluid between the first cylinder 901 and the second cylinder 902 according to the intensity of external vibration or impact, so as to better adapt to different working environments and vibration conditions, and provide more accurate and effective shock absorption effect.

[0072] In the present application, the fluid is oil.

[0073] Those skilled in the art can understand that the drawings are only schematic diagrams of preferred embodiments, and the modules or processes in the drawings are not necessarily required for the implementation of the present application.

[0074] Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be changed to be located in one or more devices different from the implementation scenario. The modules of the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0075] The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario.

[0076] The above-mentioned only for the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application, should be included in the protection scope of the present application.

Claims

1. A self-adjusting valve, characterized by, include: A valve seat, the interior of which has a flow passage connecting to the outside; A valve core is movably disposed inside the valve seat for moving under a first force to adjust the flow rate of the flow passage; An adjusting seat is rotatably disposed on the valve seat, and at least a portion of the adjusting seat is located inside the valve seat and toward the valve core, for rotating under a second force and restricting the position of the valve core to limit the maximum flow rate of the flow passage; One of the valve seat and the regulating seat is provided with a marking element, and the other is provided with an indicator element. The indicator element is used to cooperate with the marking element when the regulating seat rotates to indicate the maximum flow rate of the flow passage.

2. The adaptive regulating valve according to claim 1, characterized in that, The valve seat has a cover plate at its tail end, the adjusting seat is rotatably mounted on the cover plate, and the tail end of the adjusting seat protrudes from the cover plate; The marking element includes multiple different gear markings, which are arranged in a circular array on the cover plate; the indicator is located on the back of the adjusting seat and is used to align with any of the gear markings when the adjusting seat is rotated, so as to indicate the maximum flow rate of the flow channel.

3. The adaptive regulating valve according to claim 1, characterized in that, The adjusting seat includes a rotating disk and a movable shaft. The rotating disk is rotatably disposed at the tail of the valve seat. One end of the movable shaft is connected to the rotating disk, and the other end faces the valve core. The rotating disk is used to drive the movable shaft to rotate under a second force, so that the movable shaft moves along the axial direction of the valve seat to limit the position of the valve core.

4. The adaptive regulating valve according to claim 3, characterized in that, The rotating disk has a connecting part, and the movable shaft is connected to the rotating disk through the connecting part. The cross-sectional shape of the connecting part includes non-circular.

5. The adaptive regulating valve according to claim 4, characterized in that, The cross-sectional shape of the connecting part includes ellipse, semicircle or polygon.

6. The adaptive regulating valve according to claim 3, characterized in that, A threaded connection structure is provided between the movable shaft and the valve seat. The movable shaft is rotatably mounted on the valve seat through the threaded connection structure, so that the movable shaft can move along the axial direction of the valve seat when rotating.

7. The adaptive regulating valve according to claim 3, characterized in that, The valve core has a first position and a second position. In the first position, the head of the valve core blocks the flow passage, and the tail of the valve core is separated from the head of the movable shaft. In the second position, the head of the valve core opens the flow passage, and the tail of the valve core abuts against the head of the movable shaft. The valve core is configured to move axially along the valve seat from the first position under the first force to adjust the flow rate of the flow passage, and to be restricted to the second position by the movable shaft to limit the maximum flow rate of the flow passage.

8. The adaptive regulating valve according to claim 7, characterized in that, The valve seat is provided with an elastic element inside, and the valve core is connected to the elastic element for squeezing the elastic element under the first force and rebounding when the first force is removed; One of the valve core and the valve seat is provided with a protrusion, and the other is provided with a limiting groove. The protrusion and the limiting groove cooperate to limit the rebounding valve core to the first position.

9. The adaptive regulating valve according to claim 1, characterized in that, The flow passage includes at least two sequentially connected passage segments, which are arranged sequentially from the head of the valve seat to the tail of the valve seat; the flow area of ​​the at least two passage segments increases sequentially from the head of the valve seat to the tail of the valve seat. And / or, the flow passage includes a variable diameter section, the flow area of ​​which gradually increases from the head of the valve seat toward the tail of the valve seat.

10. A shock absorber, characterized in that, It includes a first cylinder, a second cylinder, and an adaptive regulating valve as described in any one of claims 1-9, wherein the adaptive regulating valve is connected to the first cylinder and the second cylinder respectively, and the inner cavity of the first cylinder is connected to the inner cavity of the second cylinder through the flow passage of the adaptive regulating valve.

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