Damping control valve, shock absorber and vehicle

Abstract

The utility model relates to the technical field of valve bodies, in particular to a damping control valve, a shock absorber and a vehicle. The control valve comprises a valve shell, a main valve, an action assembly and an end cover; the valve shell is provided with a mounting hole and a first oil duct, and the first oil duct communicates with the mounting hole through the inner space of the valve shell; the main valve is movably arranged in the valve shell; the action assembly is arranged on one side of the valve shell and used for driving the main valve to move in the valve shell. The end cover is provided with a second oil duct and is arranged in the mounting hole, an end cover pin is arranged on the end cover, the end cover pin is sleeved with a control element, and an elastic element is arranged between the control element and the end cover so that the control element can be far away from the second oil duct to form an initial opening; and a limiting part is arranged on the end cover pin to limit the sliding of the control element on the end cover pin in a single direction. The control valve is simple in structure and high in assembly convenience, and meanwhile the system reliability of the control valve is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of valve bodies, and particularly relates to a damping control valve, a shock absorber and a vehicle. Background Art

[0002] A damping control valve is a device used to regulate fluid flow and is commonly used in hydraulic systems, pneumatic systems, and fields such as heating, ventilation, and air conditioning (HVAC). Its main purpose is to control fluid pressure and flow rate to achieve precise motion control and system stability.

[0003] The damping control valve controls the flow rate by adjusting the channel size of the fluid flow, thereby achieving damping of the motion speed. When the fluid passes through the valve, it will experience a certain pressure drop, slowing down the response speed of the system.

[0004] Chinese invention patent with the publication number CN102138024B provides an adjustable damping valve. When the fluid flows through a hole into the valve body in the closing direction of the valve body, the additional surface of the valve body bears the pressure of the damping medium, so as to achieve an increase in the characteristic curve bifurcation of the adjustable damping valve only in the inflow direction of one valve body. However, during the assembly process of this adjustable damping valve, the components inside the housing need to be assembled in a certain order. The components near the valve seat ring are relatively independent, and it is easy to make mistakes during assembly. Moreover, the centering of some components needs to be considered during the assembly process. Due to the limited space inside the housing, the assembly difficulty is relatively large. Utility Model Content

[0005] The present application provides a damping control valve, a shock absorber and a vehicle. By setting a end cover pin on the end cover and using the end cover pin to form a one-way limit on the control element and making the control element have good centering, the control element, the elastic element and the end cover can form an assembly subassembly to achieve overall assembly, thereby solving the problems that the components near the valve seat ring in the prior art are prone to assembly errors and have a large assembly difficulty.

[0006] The present application is realized through the following technical solutions:

[0007] In a first aspect, the present application provides a damping control valve, comprising:

[0008] A valve housing, the valve housing having a mounting hole and a first oil passage, wherein the first oil passage communicates with the mounting hole through the internal space of the valve housing;

[0009] A main valve, the main valve being movably arranged inside the valve housing;

[0010] An action assembly, the action assembly being arranged on one side of the valve housing, and the action assembly being used to drive the main valve to move inside the valve housing;

[0011] End cover, the end cover has a second oil passage, the end cover is arranged in the mounting hole so that the first oil passage is communicated with the second oil passage, wherein, an end cover pin with an axis coinciding with or parallel to the extending direction of the second oil passage is arranged on the end cover, a control element is sleeved on the end cover pin, and an elastic element is arranged between the control element and the end cover so that the control element is away from the second oil passage to form an initial opening, and a limiting part is constructed on the end cover pin to unidirectionally limit the sliding of the control element on the end cover pin.

[0012] For the damping control valve provided by the present application, the size of the passage for the fluid in the second oil passage to enter the first oil passage depends on the distance between the control element and the port of the second oil passage in the extending direction of the second oil passage. Through the arrangement of the end cover pin, the control element, the elastic element and the end cover can form an integral body. The matching precision, assembly size and sealing performance during contact between the control element and the second oil passage on the end cover can be carried out outside the valve housing, and the convenience is greatly improved. The end cover and the control element can be used as an assembly to cooperate with the mounting hole on the valve housing through the end cover, the assembly efficiency is improved, it is not easy to make mistakes during the assembly process, and the assembly difficulty is reduced.

[0013] In some alternative embodiments, the first oil passage is configured to be multiple and evenly distributed along the circumference.

[0014] In some alternative embodiments, the elastic element is configured as a helical spring and sleeved on the end cover pin.

[0015] In some alternative embodiments, the length of the end cover pin is configured such that there is a gap between the control element and the main valve after the control element abuts against the limiting part.

[0016] In some alternative embodiments, in the working state, when the control element contacts the main valve, there is a distance between the control element and the limiting part.

[0017] In some alternative embodiments, the main valve is slidably matched with the valve housing, wherein the main valve has a sliding direction parallel to or coinciding with the extending direction of the second oil passage.

[0018] In some alternative embodiments, the second oil passage is constructed as a circular hole and the control element is constructed as a disc shape.

[0019] In some alternative embodiments, the actuating assembly includes:

[0020] An actuating member, the actuating member is slidably matched with the valve housing and contacts the main valve to drive the main valve to move in the valve housing;

[0021] A driving member, the driving member is in transmission cooperation with the actuating member to drive the actuating member to slide in the valve housing.

[0022] In a second aspect, the present application provides a shock absorber, comprising a base, a rod, a piston, an oil cylinder, and any one of the damping control valves described in the first aspect; the base is used for connecting to a vehicle; the oil cylinder is connected to the base; the piston is disposed within the oil cylinder; one end of the rod is connected to the piston, and the other end is used for connecting to the suspension system of the vehicle; the damping control valve is connected to the oil cylinder.

[0023] In a third aspect, the present application provides a vehicle, comprising a suspension system and the shock absorber described in the second aspect; one end of the shock absorber is connected to the vehicle body through the base, and the other end is connected to the suspension system through the rod.

[0024] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0025] 1. For a damping control valve, a shock absorber, and a vehicle provided by the present application, the size of the passage for the fluid in the second oil passage to enter the first oil passage depends on the distance between the control element and the port of the second oil passage in the extending direction of the second oil passage. Through the setting of the end cap pin, the control element, the elastic element, and the end cap can form an integral body. The fitting accuracy, assembly dimensions, and sealing performance during contact between the control element and the second oil passage on the end cap can be carried out outside the valve housing, greatly improving convenience. The end cap and the control element can be used as an assembly to cooperate with the mounting holes on the valve housing through the end cap, improving the assembly efficiency, being not prone to errors during the assembly process, and reducing the assembly difficulty.

[0026] 2. For a damping control valve, a shock absorber, and a vehicle provided by the present application, when assembling the damping control valve, the control valve is divided into two parts, one part being the action assembly, the valve housing, and the main valve, and the other part being the end cap and the control element. After assembling the action assembly, the valve housing, and the main valve, first assemble the control element and the end cap, that is, sleeving the control element on the working part of the end cap pin, and then sleeving the elastic element on the working part of the end cap pin. Due to the existence of the limiting part on the end cap pin, the elastic element and the control element will not fall off the end cap pin. Then fixedly connect the end cap pin to the end cap, taking the control element and the end cap as a sub-assembly, and cooperate through the end cap with the valve housing to complete the assembly work of the entire control valve; it can be seen from the foregoing assembly process that in the damping control valve of the embodiment of the present application, the fitting accuracy between the control element and the end cap can be carried out outside the valve housing, the attitude of the control element on the end cap is stable, and it will not shake randomly during the assembly process of the end cap and the valve housing, which will be beneficial to the positioning of the end cap and the valve housing, reducing the assembly difficulty, the fitting accuracy between the end cap and the valve housing is easy to control, the fitting accuracy between the main valve and the valve housing is easy to control, and the attitude of the control element on the end cap is stable. Therefore, after the end cap and the valve housing are assembled, there is also good fitting accuracy between the control element and the main valve, thus ensuring the system reliability of the control valve; no positioning, calibration, etc. work is carried out inside the valve housing during the whole process, greatly reducing the assembly difficulty. Brief Description of the Drawings

[0027] The drawings described herein are used to provide a further understanding of the embodiments of the present application, form a part of the present application, and do not limit the embodiments of the present application. In the drawings:

[0028] Figure 1 It is a schematic cross-sectional structure diagram of a damping control valve provided by an embodiment of the present application.

[0029] Marks in the drawings and corresponding component names:

[0030] 1 - driving member, 2 - valve housing, 3 - actuating member, 4 - main valve, 5 - control element, 6 - elastic element, 7 - end cover, 8 - end cover pin, 801 - working part, 802 - limiting part, 9 - holding housing. Detailed Embodiments

[0031] To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the present application will be further described in detail below in conjunction with the embodiments and the drawings. The illustrative embodiments of the present application and their descriptions are only used to explain the present application and do not limit the present application.

[0032] In a first aspect, as Figure 1 shown, an embodiment of the present application provides a damping control valve, which includes a valve housing 2, a main valve 4, an actuating assembly, and an end cover 7.

[0033] The overall shape of the valve housing 2 is generally configured as a cylindrical shape. In other embodiments, the overall shape of the valve housing 2 can also be configured as a polygonal housing; a stepped counterbore is formed at one axial end port of the valve housing 2 as a mounting hole, and a first oil passage is opened on the side wall of the valve housing 2, so that the first oil passage can communicate with the mounting hole through the internal space of the valve housing 2. The first oil passage can be configured as a circular hole. Among them, the axis of the first oil passage can be set perpendicular to the axis of the mounting hole. In other embodiments, the axis of the first oil passage can also form a certain angle with the axis of the mounting hole.

[0034] The main valve 4 is movably arranged in the valve housing 2, which means that the main valve 4 can move inside the valve housing 2, such as sliding, rotating, rolling, etc.

[0035] The actuating assembly is connected to the valve housing 2, and the actuating assembly is used to drive the main valve 4 to move in the valve housing 2.

[0036] The end cover 7 has a second oil passage. The end cover 7 is arranged in the mounting hole so that the first oil passage communicates with the second oil passage through the inner space of the valve housing 2. The end cover 7 is sealingly connected to the hole wall of the mounting hole. The axis of the second oil passage coincides with the axis of the mounting hole. Among them, an end cover pin 8 with an axis coinciding with or parallel to the extending direction of the second oil passage is arranged on the end cover 7. A control element 5 is sleeved on the end cover pin 8. In actual implementation, the end cover pin 8 is coaxial with the second oil passage. A radial connecting rod can be arranged in the second oil passage for the end cover pin 8 to connect. The cross-sectional shape of the control element 5 is similar to the cross-sectional shape of the second oil passage. From the axial view of the second oil passage, the cross-sectional area of the control element 5 is larger than the cross-sectional area of the second oil passage so that the control element 5 can block the port of the second oil passage. Usually, the second oil passage is configured as a circular channel. Therefore, the control element 5 can be configured as a corresponding disc shape. An elastic element 6 is arranged between the control element 5 and the end cover 7 so that the control element 5 is away from the second oil passage to form an initial opening, that is, the elastic action of the elastic element is between the end cover and the control element. Thus, when the main valve 4 moves, it can drive the control element 5 to slide on the end cover pin 8 to close the second oil passage.

[0037] For the damping control valve provided by the embodiment of the present application, the size of the fluid entering the first oil passage from the second oil passage depends on the distance between the control element 5 and the port of the second oil passage in the extending direction of the second oil passage. The control is realized by driving the control element 5 through the main valve 4. Through the arrangement of the end cover pin 8, the control element 5, the elastic element 6 and the end cover 7 can form an integral body. The matching accuracy, assembly dimensions and sealing performance during contact of the control element 5 and the second oil passage on the end cover 7 can be carried out outside the valve housing 2, greatly improving the convenience. The end cover 7 and the control element 5 can be used as an assembly to cooperate with the mounting hole on the valve housing 2 through the end cover 7, improving the assembly efficiency, not easily making mistakes during the assembly process, and reducing the assembly difficulty.

[0038] For the damping control valve provided by the embodiment of the present application, the arrangement of the end cover pin 8 can provide a guiding function for the movement of the control element 5, ensure that the control element 5 has good attitude stability during the movement process, and reduce the risk of the control element 5 getting stuck on the end cover pin 8.

[0039] In some alternative embodiments, the first oil passage is configured as multiple and evenly distributed along the circumference.

[0040] In some alternative embodiments, a limiting portion 802 is constructed on the end cover pin 8 to limit the sliding of the control element 5 on the end cover pin 8 in a single direction.

[0041] In the embodiment of the present application, the limiting portion 802 on the end cover pin 8 can prevent the control element 5 from slipping off the end cover pin 8 and can prevent the control element 5 from falling off the end cover 7 during the assembly process, which is beneficial to improving the assembly convenience.

[0042] The type of the elastic element 6 between the control element 5 and the end cover 7 can be various, such as a shrapnel, a spring, an elastic material block, etc. In order to reduce the manufacturing difficulty and ensure the stable elastic force output of the elastic element 6, in some alternative embodiments, the elastic element 6 is configured as a helical spring and sleeved on the end cover pin 8.

[0043] In the embodiment of the present application, the elastic element 6 is arranged on the end cover pin 8 in a sleeved manner, which can ensure the stable movement posture of the elastic element 6 and prevent the elastic element 6 from coming off or breaking during the operation of the valve body.

[0044] In some alternative embodiments, the length of the end cover pin 8 is configured such that when the control element 5 abuts against the limiting portion 802, there is a gap between the control element 5 and the main valve 4, that is, there is no elastic force acting on the main valve 4 from the elastic element 6. That is to say, when the main valve 4 is in the initial position in an uncontrolled state, there is a gap between the main valve 4 and the control element 5. At this time, the control element 5 is maintained in a state based on the elastic force of the elastic element 6, and the gap between the control element 5 and the main valve 4 can accommodate the fluid medium. When there is a certain pressure difference between the fluid media on both sides of the control element 5, the control element 5 has a movement mode that can slide towards the end cover 7.

[0045] In some alternative embodiments, in the working state, when the control element 5 contacts the main valve 4, there is a distance between the control element 5 and the limiting portion 802, that is, the elastic force of the elastic element 6 is transmitted to the main valve 4 through the control element 5. Among them, the contact between the control element 5 and the main valve 4 is a sealed contact. That is to say, in the working state, the pressure received by the control element 5 from the fluid medium is unilateral. At this time, the channel size of the second oil passage is controlled by the coordinated adjustment of the elastic element 6 and the main valve 4, that is, the channel size of the second oil passage is controlled by the movement of the main valve 4.

[0046] Through the above two configurations of the length of the end cover pin 8, diversified damping performance can be achieved.

[0047] The movement mode of the main valve 4 in the valve housing 2 is diverse, as long as it can drive the control element 5 to act during the movement process. Considering the structural simplicity and assembly convenience, in some alternative embodiments, the main valve 4 is in sliding fit with the valve housing 2. Among them, the main valve 4 has a sliding direction parallel or coincident with the extension direction of the second oil passage. In actual implementation, the sliding direction of the main valve 4 coincides with the axis of the second oil passage, that is, it means that the main valve 4 slides axially along the valve housing 2 under the drive of the action component to drive the control element 5 to elastically slide on the end cover pin 8.

[0048] In some alternative embodiments, the actuating assembly includes an actuating member 3 and a driving member 1; the actuating member 3 is slidably engaged with the valve housing 2 and contacts the main valve 4 to drive the main valve 4 to move within the valve housing 2. Specifically, the actuating member 3 includes a controlled portion and a push rod. The push rod is movably inserted through the valve housing 2, and the axis of the push rod can be configured to coincide with the axis of the valve housing 2. The controlled portion is cooperated with the driving member 1 through the holding housing 9, wherein the holding housing 9 is relatively fixed to the valve housing 2. The holding housing 9 can be directly fixedly cooperated with the valve housing 2, or can be cooperated with the valve housing 2 through the driving member 1 to make the holding housing 9 and the valve housing 2 relatively fixed. An activity groove is formed on the holding housing 9. The controlled portion is connected to the push rod and is located in the activity groove. The controlled portion can freely slide in the activity groove. A return elastic member can be configured between the controlled portion and the valve housing 2. The controlled portion has a sliding tendency under the elastic force of the return elastic member, so that the controlled portion can maintain its position in the initial state in the activity groove; the driving member 1 is in transmission cooperation with the actuating member 3 to drive the actuating member 3 to slide within the valve housing 2. In actual implementation, the driving member 1 can include an electromagnetic control portion and a protective housing. The protective housing is fixedly cooperated with the valve housing 2, wherein the holding housing 9 is located within the protective housing, and the electromagnetic control portion is located outside the holding housing 9 and is connected / cooperated with the protective housing. The electromagnetic control portion can drive the controlled portion to slide in the activity groove in the energized state, so that the push rod can drive the main valve 4 to slide within the valve housing 2, and then the main valve 4 drives the control element 5 to elastically slide on the end cap pin 8.

[0049] When assembling the damping control valve, the control valve is divided into two parts. One part is the actuating assembly, the valve housing 2, and the main valve 4, and the other part is the end cap 7 and the control element 5. After assembling the actuating assembly, the valve housing 2, and the main valve 4, first assemble the control element 5 and the end cap 7, that is, sleeved the control element 5 on the working portion 801 of the end cap pin 8, and then sleeved the elastic element 6 on the working portion 801 of the end cap pin 8. Due to the existence of the limiting portion 802 on the end cap pin 8, the elastic element 6 and the control element 5 will not fall off the end cap pin 8. Then fixedly connect the end cap pin 8 with the end cap 7, and regard the control element 5 and the end cap 7 as a sub-assembly, and complete the assembly work of the entire control valve by the cooperation of the end cap 7 and the valve housing 2; it can be seen from the foregoing assembly process that in the damping control valve of the embodiment of the present application, the assembly accuracy of the control element 5 and the end cap 7 can be carried out outside the valve housing 2. The attitude of the control element 5 on the end cap 7 is stable and will not shake randomly during the assembly process of the end cap 7 and the valve housing 2. This will be beneficial to the positioning of the end cap 7 and the valve housing 2, reduce the assembly difficulty, the assembly accuracy of the end cap 7 and the valve housing 2 is easy to control, the assembly accuracy between the main valve 4 and the valve housing 2 is easy to control, and the attitude of the control element 5 on the end cap 7 is stable. Therefore, after the end cap 7 and the valve housing 2 are assembled, there is also good assembly accuracy between the control element 5 and the main valve 4, so that the system reliability of the control valve is guaranteed; the entire process does not perform positioning, calibration, etc. within the valve housing 2, and the assembly difficulty is greatly reduced.

[0050] During operation, if the length of the end cover pin 8 is relatively long, that is, there is still a gap between the control element 5 and the limiting portion 802 when the elastic element 6 is in the natural state. After the end cover 7 and the valve housing 2 are fitted together, the control element 5 can be in sealing contact with the main valve 4 in the uncontrolled initial position. At this time, the elastic element 6 is compressed, which means that the control element 5 is held against the main valve 4 by the elastic element 6. When the electromagnetic control part is energized, the controlled part slides in the moving groove, and the ejector rod holds the main valve 4 to slide in the valve housing 2. The main valve 4 holds the control element 5 to make the control element 5 elastically slide on the end cover pin 8. At this time, the distance between the control element 5 and the second oil passage becomes smaller, and the size of the passage between the second oil passage and the first oil passage becomes smaller, so as to realize the adjustment of the size of the oil passage; when the electromagnetic control part is de-energized, the elastic element 6 provides an elastic force to the control element 5, and the control element 5 slides on the end cover pin 8 in the direction of the limiting portion 802. During the sliding process, the control element 5 always abuts against the main valve 4, which means that during the whole adjustment process, the size of the oil passage is adjusted by the fluid medium pressure in the second oil passage, the elastic force of the elastic element 6, and the electromagnetic force of the electromagnetic control part.

[0051] If the length of the end cover pin 8 is relatively short, that is, when the control element 5 contacts the limiting portion 802, the elastic element 6 is in a compressed state, which means that the elastic element 6 holds the control element 5 against the limiting portion 802. When the main valve 4 is in the uncontrolled initial position, there is a gap between the main valve 4 and the control element 5, that is, the main valve 4 and the control element 5 are separated; after the fluid medium flows from the A side to the B side of the control valve, the fluid medium can enter between the control element 5 and the main valve 4 through the gap. At this time, the movement of the control element 5 depends on the hydraulic pressure exerted on it by the fluid medium on both sides of the control element 5 and the elastic force provided by the elastic element 6, which means that the size of the fluid medium flow passage is in the self-adjustment mode. When it is necessary to reduce the fluid flow passage, the electromagnetic control part is energized, and the main valve 4 overcomes the fluid medium pressure and is in sealing contact with the control element 5, and then drives the control element 5 to elastically slide on the end cover pin 8 to reduce the size of the fluid flow passage.

[0052] In a second aspect, an embodiment of the present application provides a shock absorber, including a base, a rod body, a piston, an oil cylinder, and any one of the damping control valves described in the first aspect; the base is used for connecting to a vehicle; the oil cylinder is connected to the base; the piston is disposed in the oil cylinder; one end of the rod body is connected to the piston, and the other end is used for connecting to the suspension system of the vehicle; the damping control valve is connected to the oil cylinder.

[0053] In a third aspect, an embodiment of the present application provides a vehicle, including a suspension system and the shock absorber described in the second aspect; one end of the shock absorber is connected to the vehicle body through the base, and the other end is connected to the suspension system through the rod body.

[0054] The above describes the embodiments of the present application with specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Although the description of the present application will be introduced in combination with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of introducing the application in combination with the embodiment is to cover other alternatives or modifications that may be extended based on the claims of the present application. To provide a deep understanding of the present application, many specific details are included in the above description. The present application can also be implemented without these details. In addition, to avoid confusion or obscuring the key points of the present application, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0055] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the above drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0056] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these changes and variations.

Claims

1. A damping control valve, characterized in that, Comprising: A valve housing (2), the valve housing (2) having a mounting hole and a first oil passage, wherein the first oil passage communicates with the mounting hole through the internal space of the valve housing (2); A main valve (4), the main valve (4) being movably disposed within the valve housing (2); An actuating assembly, the actuating assembly being disposed on one side of the valve housing (2), the actuating assembly being used to drive the main valve (4) to move within the valve housing (2); An end cap (7), the end cap (7) having a second oil passage, the end cap (7) being disposed within the mounting hole to communicate the first oil passage with the second oil passage, wherein an end cap pin (8) having an axis coinciding with or parallel to the extending direction of the second oil passage is provided on the end cap (7), a control element (5) is sleeved on the end cap pin (8), and an elastic element (6) is disposed between the control element (5) and the end cap (7) to enable the control element (5) to be away from the second oil passage to form an initial opening, and a limiting portion (802) is configured on the end cap pin (8) to unidirectionally limit the sliding of the control element (5) on the end cap pin (8).

2. The damping control valve according to claim 1, characterized in that, The first oil passages are configured to be multiple and evenly distributed along the circumference.

3. The damping control valve according to claim 1, wherein The elastic element (6) is configured to be a helical spring and is sleeved on the end cap pin (8).

4. The damping control valve according to claim 1, wherein, The length of the end cap pin (8) is configured such that there is a gap between the control element (5) and the main valve (4) after the control element (5) abuts against the limiting portion (802).

5. The damping control valve according to claim 1, wherein, In the working state, when the control element (5) contacts the main valve (4), there is a spacing between the control element (5) and the limiting portion (802).

6. The damping control valve according to claim 1, wherein The main valve (4) is in sliding fit with the valve housing (2), wherein the main valve (4) has a sliding direction parallel to or coinciding with the extending direction of the second oil passage.

7. The damping control valve according to claim 4, wherein The second oil passage is configured as a circular hole and the control element (5) is configured as a disc shape.

8. The damping control valve according to claim 1, characterized in that, The actuating assembly includes: An actuating member (3), the actuating member (3) being in sliding fit with the valve housing (2) and contacting the main valve (4) to drive the main valve (4) to move within the valve housing (2); A driving member (1), the driving member (1) being in transmission fit with the actuating member (3) to drive the actuating member (3) to slide within the valve housing (2).

9. A shock absorber, characterized in that, Including a base, a rod body, a piston, an oil cylinder, and a damping control valve according to any one of claims 1 to 8; The base is used to connect to a vehicle; The oil cylinder is connected to the base; The piston is disposed within the oil cylinder; One end of the rod body is connected to the piston, and the other end is used to connect to the suspension system of the vehicle; The damping control valve is connected to the oil cylinder.

10. A vehicle, characterized in that, Including a suspension system and a shock absorber according to claim 9; One end of the shock absorber is connected to the vehicle body through the base, and the other end is connected to the suspension system through the rod body.

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