High-pressure valve

Abstract

The high-pressure valve comprises a valve body, a valve element, an adapter and a driver, and the valve body comprises a first connector, a second connector, an axial channel communicating with the first connector and the second connector and a containing cavity coaxially communicating with the axial channel. The valve element is arranged in the axial channel in a sliding mode and used for selectively cutting off or maintaining the communication relation between the first connector and the second connector. The adapter is arranged in the containing cavity and comprises a first end and a second end which is opposite to the first end and connected with the valve element in a hanging mode. The driver is arranged on the valve body and connected with the first end of the adapter so as to drive the valve element to move in the valve body through the adapter. The adapter piece is configured to allow the valve element to generate radial movement relative to the adapter piece when the valve element is connected with the adapter piece in a hung mode. The hanging connection mode counteracts the eccentric phenomenon caused by the fact that the central axis of the valve element and the central axis of the axial channel cannot coincide in the assembling process due to too large machining errors, the sealing performance of the high-pressure valve is improved, and the service life of the high-pressure valve is prolonged.

Description

Technical Field

[0001] The implementation manner of the utility model relates to the technical field of high-pressure valves, and more specifically, the utility model relates to a high-pressure valve. Background Art

[0002] In a high-pressure fluid control system, a high-pressure valve plays a vital role. The high-pressure valve includes a valve body, a valve core, an adapter and a driver. The valve body includes a first interface, a second interface and an axial channel connecting the first interface and the second interface. The driver drives the valve core to move in the valve body through the adapter to cut off or maintain the connection between the first interface and the second interface to control the circulation state of the high-pressure fluid and maintain the relative position of the valve core and the valve body to ensure the stable operation of the system.

[0003] As the core component of the high-pressure valve, the installation accuracy of the valve core directly affects the overall performance of the high-pressure valve. However, in the actual production process, due to the precision limitations of the processing equipment, the technical level of the operators and the differences in material properties, there are often slight errors in the processing of the valve core and the valve body. These errors may cause the central axis of the valve core to not coincide with the central axis of the accommodating channel in the valve body for accommodating the valve core, resulting in eccentricity. The eccentricity has a significant negative impact on the performance of high-pressure valves. First, due to the high sealing performance requirements of high-pressure valves, it is necessary to maintain good sealing during the process of high-pressure fluid passing through the high-pressure valve. However, the eccentricity may reduce the sealing performance of the high-pressure valve, resulting in leakage of high-pressure fluid, affecting the safety and reliability of the high-pressure valve. In addition, long-term eccentric movement may also aggravate the wear between the valve core and the valve body, shortening the service life of the high-pressure valve. Utility Model Content

[0004] In order to solve one or more of the technical problems mentioned above, the utility model provides a high-pressure valve body, which can offset the eccentricity caused by the non-coincidence between the central axis of the valve core and the central axis of the accommodating channel in the valve body for accommodating the valve core, thereby improving the sealing performance of the high-pressure valve and increasing the service life of the high-pressure valve.

[0005] The utility model provides a high pressure valve, comprising:

[0006] The valve body comprises a first interface, a second interface, an axial channel communicating with the first interface and the second interface, and an accommodating cavity coaxially communicating with the axial channel;

[0007] a valve core, which is slidably disposed in the axial passage and is used to selectively cut off or maintain the communication relationship between the first interface and the second interface;

[0008] An adapter, which is arranged in the accommodating cavity and includes a first end portion and a second end portion opposite to the first end portion and hooked to the valve core;

[0009] A driver, which is arranged on the valve body and connected to the first end portion of the adapter to drive the valve core to move in the valve body through the adapter, and the driver can maintain the relative position between the valve core and the valve body after driving the valve core to move;

[0010] Wherein, the adapter is configured to allow the valve core to generate radial movement relative to the adapter when the valve core is hooked to the adapter.

[0011] The above high-pressure valve drives the valve core to move in the axial channel in the valve body through the driver to block the axial channel, so as to realize cutting off or maintaining the communication relationship between the first interface and the second interface connected to the axial channel. By changing the existing threaded connection method between the adapter and the valve core to a hooked connection method, and enabling the valve core to generate radial movement relative to the adapter through the hooked connection method, the position of the valve core relative to the adapter can be adjusted in the radial direction of the adapter to adapt to the position of the accommodating cavity on the valve body. Furthermore, the valve core can be more easily inserted into the axial channel in the valve body during assembly, and thus offsets the eccentricity phenomenon caused by the excessive machining error between the valve core and the valve body, resulting in the non-coincidence of the central axis of the valve core and the central axis of the axial channel on the valve body for accommodating the valve core during assembly. Due to the offset of the eccentricity phenomenon, the movement trajectory of the valve core in the axial channel is more stable, thereby improving the sealing performance of the high-pressure valve, reducing the possibility of high-pressure fluid leakage in the high-pressure valve, and ensuring the installability and reliability of the high-pressure valve. And it reduces the wear between the two caused by long-term eccentric movement, thereby increasing the service life of the high-pressure valve. By enabling the driver to maintain the relative position between the valve core and the valve body after driving the valve core to move, the sealing performance of the high-pressure valve is maintained when high-pressure fluid passes through the first interface, the axial channel, and the second interface.

[0012] Further, the valve core includes a hook structure provided at the end adjacent to the driver, and a necking structure that engages with the hook structure and is farther from the driver than the hook structure. The adapter includes a radial notch provided at the second end portion, and an avoidance opening connected to the radial notch and closer to the driver than the radial notch. When the hook structure and the necking structure of the valve core respectively enter the avoidance opening and the radial notch of the adapter along the radial direction, the valve core is hooked to the adapter.

[0013] Further, the radial gap extends in the radial direction of the adapter by a dimension greater than the radius of the adapter and less than the diameter of the adapter, such that the central axis of the valve element can coincide with the central axis of the adapter.

[0014] Further, the connection between the adapter and the driver is a threaded connection.

[0015] Further, the high-pressure valve further includes a compression spring disposed in the accommodation cavity and sleeved on the connection between the driver and the adapter. One end of the compression spring abuts against the driver, and the other end abuts against the adapter.

[0016] Further, the driver is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0017] Further, the valve body includes a first sub-valve body having the first interface, the axial channel and the accommodation cavity, and a second sub-valve body detachably connected to the first sub-valve body and having the second interface. The high-pressure valve further includes a gasket clamped between the first sub-valve body and the second sub-valve body and communicating with the first interface, the axial channel and the second interface. When the valve element moves in the axial channel and abuts against the gasket, the valve element and the gasket in contact with each other jointly block the part of the axial channel for communicating the first interface and the second interface.

[0018] Further, the valve element includes a first annular boss provided on the end face thereof close to the first sub-valve body, and the first annular boss is used to abut against the gasket.

[0019] Further, the gasket is made of polyurethane material or rubber material.

[0020] Further, the high-pressure valve further includes a sealing ring disposed in the axial channel and embeddedly sleeved on the valve element. Description of the Drawings

[0021] By reading the following detailed description with reference to the drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the drawings, several embodiments of the present invention are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0022] Figure 1 shows a schematic structural view of the high-pressure valve provided by the embodiment of the present invention;

[0023] Figure 2 shows a side view of the high-pressure valve provided by the embodiment of the present invention;

[0024] Figure 3 shows Figure 2 a cross-sectional view taken along the A-A direction in

[0025] Figure 4 shows a cross-sectional view of the valve body and the washer provided by the embodiment of the present utility model in an exploded state;

[0026] Figure 5 shows a schematic structural view of the first sub-valve body provided by the embodiment of the present utility model;

[0027] Figure 6 shows a schematic structural view of the second sub-valve body provided by the embodiment of the present utility model;

[0028] Figure 7 shows a schematic structural view of the valve core and the sealing ring provided by the embodiment of the present utility model;

[0029] Figure 8 shows a schematic structural view of the adapter provided by the embodiment of the present utility model;

[0030] Figure 9 shows a schematic structural view of the valve core, the connecting piece, the driver, the compression spring and the sealing ring assembled together provided by the embodiment of the present utility model.

[0031] In the figure:

[0032] 1. Valve body; 11. First sub-valve body; 111. First sub-valve body body; 112. Cover plate; 1111. First interface; 1112. Axial channel; 1113. Accommodation cavity; 1114. First limiting groove; 1115. Second annular boss; 12. Second sub-valve body; 121. Second interface; 122. Second limiting groove; 123. Third annular boss;

[0033] 2. Valve core; 21. Hook structure; 22. Necking structure; 23. First annular boss;

[0034] 3. Adapter; 31. First end; 32. Second end; 321. Radial notch; 322. Avoidance opening;

[0035] 4. Driver;

[0036] 5. Compression spring;

[0037] 6. Washer;

[0038] 7. Sealing ring. Detailed implementation manners

[0039] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0040] Figure 1 The structural schematic diagram of the high-pressure valve provided in this embodiment is shown. Figure 2 The side view of the high-pressure valve provided in this embodiment is shown. Figure 3 Shown is Figure 2 The cross-sectional view in the A-A direction in. As Figures 1 - 3 shown, this embodiment provides a high-pressure valve, which includes a valve body 1, a valve core 2, an adapter 3 and a driver 4. The valve body 1 includes a first interface 1111, a second interface 121, an axial channel 1112 connecting the first interface 1111 and the second interface 121, and a receiving cavity 1113 coaxially connected to the axial channel 1112. The valve core 2 is slidably arranged in the axial channel 1112 and is used to selectively cut off or maintain the connection relationship between the first interface 1111 and the second interface 121. The adapter 3 is arranged in the receiving cavity 1113 and includes a first end 31 and a second end 32 opposite to the first end 31 and hooked to the valve core 2. The driver 4 is arranged on the valve body 1 and connected to the first end 31 of the adapter 3 to drive the valve core 2 to move in the valve body 1 through the adapter 3. Among them, the adapter 3 is configured to allow the valve core 2 to generate radial movement relative to the adapter 3 when the valve core 2 is hooked to the adapter 3.

[0041] The above-mentioned high-pressure valve drives the valve core 2 to move in the axial channel 1112 in the valve body 1 through the driver 4 to block the axial channel 1112, so as to cut off or maintain the connection relationship between the first interface 1111 and the second interface 121 connected to the axial channel 1112. By changing the threaded connection between the existing adapter 3 and the valve core 2 to a hanging connection, and enabling the valve core 2 to move radially relative to the adapter 3 through the hanging connection, the position of the valve core 2 relative to the adapter 3 can be adjusted in the radial direction of the adapter 3 to adapt to the position of the accommodation cavity 1113 on the valve body 1. Furthermore, when assembling, the valve core 2 can be more easily inserted into the axial channel 1112 in the valve body 1, and thus offsets the eccentricity phenomenon caused by the excessive machining error between the valve core 2 and the valve body 1, resulting in the inability to coincide the central axis of the valve core 2 with the central axis of the axial channel 1112 for accommodating the valve core 2 on the valve body 1 during assembly. Since the occurrence of the eccentricity phenomenon is offset, the movement track of the valve core 2 in the axial channel 1112 is more stable, thereby reducing the operation difficulty and failure rate of the high-pressure valve, improving the sealing performance of the high-pressure valve, and avoiding wear between the two due to long-term eccentric movement, thus extending the service life of the high-pressure valve. By enabling the driver 4 to maintain the relative position between the valve core 2 and the valve body 1 after driving the valve core 2 to move, the sealing performance of the high-pressure valve is maintained when high-pressure fluid passes through the first interface 1111, the axial channel 1112, and the second interface 121.

[0042] It should be noted that in this embodiment, the maximum value of the high-pressure fluid pressure is 16 Mpa.

[0043] It should be noted that after the valve core 2 is inserted into the axial channel 1112 in the valve body 1, most of the valve core 2 in the axial direction is in the axial channel 1112. And since only a small section of movement is required during the movement of the valve core 2 to cut off or maintain the connection relationship between the first interface 1111 and the second interface 121, the movement distance of the valve core 2 when cutting off or maintaining the connection relationship between the first interface 1111 and the second interface 121 will not cause the central axis of the valve core 2 to deviate from the central axis of the axial channel 1112.

[0044] Furthermore, the high-pressure valve further includes a compression spring 5 disposed in the accommodation cavity 1113 and sleeved on the connection between the driver 4 and the adapter 3. One end of the compression spring 5 abuts against the driver 4, and the other end abuts against the adapter 3. When the driver 4 accidentally fails to drive the valve core 2 to move, the elastic restoring force of the compression spring 5 is used to drive the valve core 2 to cut off the connection relationship between the first interface 1111 and the second interface 121, so that the high-pressure valve can promptly maintain a closed state in case of an accident.

[0045] In this embodiment, the driver 4 is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, that is, it can drive the valve core 2 to move, and can also keep the relative position between the valve core 2 and the valve body 1 after the driver 4 drives the valve core 2 to move. For example, when the driver 4 is a pneumatic cylinder, the gas volume is controlled so that the driver 4 has a greater output force to counteract the high-pressure fluid. When the driver 4 is a hydraulic cylinder, the liquid volume is controlled so that the driver 4 has a greater output force to counteract the high-pressure fluid. When the driver 4 is an electric cylinder, the input voltage and current are controlled so that the driver 4 has a greater output force to counteract the high-pressure fluid. In other embodiments, the driver 4 can also be other driving parts that can drive other parts to move, and this embodiment does not make specific limitations on this. Any driving parts that can achieve the above effects are within the protection scope of the embodiments of the present disclosure.

[0046] Figure 4 Fig. shows a cross-sectional view of the valve body 1 and the gasket 6 provided in this embodiment in an exploded state. As Figure 4 and combined with Figures 1 - 3 shown, the valve body 1 includes a first sub-valve body 11 having a first interface 1111, an axial channel 1112 and a receiving cavity 1113, a second sub-valve body 12 detachably connected to the first sub-valve body 11 and having a second interface 121. The high-pressure valve further includes a gasket 6 clamped between the first sub-valve body 11 and the second sub-valve body 12 and communicating with the first interface 1111, the axial channel 1112 and the second interface 121. When the valve core 2 moves in the axial channel 1112 and abuts against the gasket 6, the valve core 2 and the gasket 6 in contact with each other jointly block the part of the axial channel 1112 for communicating the first interface 1111 and the second interface 121. By setting the valve body 1 as the mutually detachable first sub-valve body 11 and the second sub-valve body 12, and arranging the gasket 6 between the two, when the valve core 2 cuts off the communication relationship between the first interface 1111 and the second interface 121, the gasket 6 can abut against the valve core 2, thereby improving the sealing performance of the valve body 1 when cutting off the communication relationship between the first interface 1111 and the second interface 121. And the detachable connection method is more convenient for installing the gasket 6 between the first sub-valve body 11 and the second sub-valve body 12.

[0047] In this embodiment, the gasket 6 is annular, and the center of the gasket 6 is a through hole. When the valve core 2 cuts off the communication relationship between the first interface 1111 and the second interface 121, the valve core 2 abuts against the gasket 6 and blocks the through hole in the center of the gasket 6, thereby realizing the cut-off of the communication relationship between the first interface 1111 and the second interface 121. When the valve core 2 maintains the communication relationship between the first interface 1111 and the second interface 121, the valve core 2 no longer abuts against the gasket 6, and the high-pressure fluid can pass through the through hole in the center of the gasket 6, thereby realizing the maintenance of the communication relationship between the first interface 1111 and the second interface 121.

[0048] In this embodiment, the gasket 6 is made of polyurethane or rubber. By utilizing the characteristics that these two materials can adaptively deform and have good sealing performance, when the valve core 2 presses against the gasket 6, the gasket 6 can adaptively deform, so as to improve the sealing performance of the high-pressure valve when cutting off the communication relationship between the first interface 1111 and the second interface 121. In other embodiments, the gasket 6 can also be made of other materials that can adaptively deform and have good sealing performance, and this embodiment does not make specific limitations in this regard. Any material that can achieve the above effects is within the protection scope of the embodiments of the present disclosure.

[0049] Specifically, the first sub-valve body 11 includes a first sub-valve body main body 111 and a cover plate 112 detachably connected thereto, so as to install the valve core 2 and the sealing ring 7 into the axial channel 1112 during assembly, and install the adapter 3 and the compression spring 5 into the accommodation cavity 1113, thereby facilitating the operator to assemble the high-pressure valve.

[0050] Figure 5 The structural schematic diagram of the first sub-valve body main body 111 provided in this embodiment is shown. Figure 6 The structural schematic diagram of the second sub-valve body 12 provided in this embodiment is shown. As Figures 5 - 6 And in combination with Figures 1 - 4 As shown, the first sub-valve body main body 111 includes a first limiting groove 1114 provided along the edge of the opening of the axial channel 1112 facing the second interface 121 and a second annular boss 1115 provided in the first limiting groove 1114. The second sub-valve body 12 includes a second limiting groove 122 provided along the edge of the opening for communicating with the axial channel 1112 and a third annular boss 123 provided in the second limiting groove 122. The first limiting groove 1114 and the second limiting groove 122 are used to limit the gasket 6 after the first sub-valve body main body 111 and the second sub-valve body 12 are installed and pressed against each other, so as to prevent the gasket 6 from moving. The second annular boss 1115 and the third annular boss 123 can squeeze the gasket 6 to deform after the first sub-valve body main body 111 and the second sub-valve body 12 are installed and pressed against each other, so as to improve the sealing effect of the axial channel 1112.

[0051] Figure 7 The structural schematic diagram of the valve core 2 and the sealing ring 7 provided in this embodiment is shown. As Figure 7 And in combination with Figures 1 - 4 As shown, the valve core 2 includes a first annular boss 23 provided on its end face close to the first sub-valve body 11. The first annular boss 23 is used to abut against the gasket 6, so that after the valve core 2 presses against the gasket 6, the first annular boss 23 can squeeze the gasket 6 to deform, so as to improve the sealing performance of the valve body 1 when cutting off the communication relationship between the first interface 1111 and the second interface 121.

[0052] Further, the high-pressure valve further includes a sealing ring 7 disposed in the axial channel 1112 and sleeved on the valve core 2 in an embedded manner to ensure the sealing performance between the valve core 2 and the axial channel 1112 when the valve core 2 moves in the axial channel 1112, and prevent high-pressure fluid from leaking into the accommodating cavity 1113 during the process of passing through the first interface 1111, the axial channel 1112, and the second interface 121.

[0053] Figure 8 The structural schematic diagram of the adapter 3 provided in this embodiment is shown. Figure 9 The structural schematic diagram after the assembly of the valve core 2, the connecting member, the driver 4, the compression spring 5, and the sealing ring 7 provided in this embodiment is shown. As Figures 8 - 9 And in combination with Figures 1 - 4 And Figure 7 As shown, the valve core 2 includes a hook structure 21 provided at the end adjacent to the driver 4, and a necking structure 22 engaged with the hook structure 21 and farther from the driver 4 than the hook structure 21. The adapter 3 includes a radial notch 321 provided at the second end 32, and an avoidance opening 322 connected to the radial notch 321 and closer to the driver 4 than the radial notch 321. When the hook structure 21 and the necking structure 22 of the valve core 2 respectively enter the avoidance opening 322 and the radial notch 321 of the adapter 3 along the radial direction, the valve core 2 is hooked to the adapter 3.

[0054] Further, the connection between the adapter 3 and the driver 4 is a threaded connection. The threaded connection method can not only connect the adapter 3 with the driving member, but also enable rotation in the circumferential direction along the central axis of the driver 4, so that the radial notch 321 on the adapter 3 can rotate in the circumferential direction along the central axis of the driver 4, and further change the movement path of the necking structure 22 of the valve core 2 when it is placed in the radial notch 321, so as to enable the valve core 2 to move in multiple radial directions along the central axis of the driver 4, so that the valve core 2 can adapt to axial channels 1112 at various different positions to better offset the eccentricity caused by the non-coincidence of the central axis of the valve core 2 and the central axis of the axial channel 1112.

[0055] Preferably, the extension dimension of the radial notch 321 in the radial direction of the adapter 3 is greater than the radius of the adapter 3 and less than the diameter of the adapter 3, so that the central axis of the valve core 2 can coincide with the central axis of the adapter 3 to ensure that the valve core 2 can offset the eccentricity caused by the non-coincidence of the central axis of the valve core 2 and the central axis of the axial channel 1112.

[0056] In the above description of the present application, unless otherwise clearly specified and defined, terms such as "fixed", "installed", "connected" or "coupled" should be understood in a broad sense. For example, in the case of the term "connected", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meanings of the above terms in the present utility model according to specific circumstances.

[0057] Based on the above description of the present application, those skilled in the art can also understand the following terms used, such as terms indicating orientation or positional relationships, such as "upper", "inner", "axial", "circumferential", "center", etc., which are based on the orientation or positional relationships shown in the drawings of the present application. They are only for the purpose of facilitating the description of the solution of the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms of orientation or positional relationships cannot be understood or interpreted as a limitation to the solution of the present utility model.

[0058] In addition, the terms "first" or "second" etc. used in the present application to refer to numbers or ordinals are only for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0059] Although multiple embodiments of the present utility model have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art can think of many changes, alterations and alternative ways without departing from the spirit and scope of the present utility model. It should be understood that various alternative solutions to the embodiments of the present utility model described herein can be adopted in the practice of the present utility model. The appended claims are intended to define the scope of protection of the present utility model and thus cover equivalents or alternative solutions within the scope of these claims.

Claims

1. A high pressure valve, characterized in that: include: A valve body (1) comprising a first interface (1111), a second interface (121), an axial channel (1112) communicating with the first interface (1111) and the second interface (121), and an accommodating chamber (1113) coaxially communicating with the axial channel (1112); a valve core (2) which is slidably disposed in the axial channel (1112) and is used to selectively cut off or maintain the communication relationship between the first interface (1111) and the second interface (121); A transition piece (3) is disposed in the accommodating cavity (1113) and comprises a first end (31) and a second end (32) opposite to the first end (31) and connected to the valve core (2); a driver (4) disposed on the valve body (1) and connected to the first end (31) of the adapter (3) so as to drive the valve core (2) to move in the valve body (1) through the adapter (3), and the driver (4) is capable of maintaining the relative position of the valve core (2) and the valve body (1) after driving the valve core (2) to move; The adapter (3) is configured to allow the valve core (2) to generate radial movement relative to the adapter (3) when the valve core (2) is connected to the adapter (3).

2. The high pressure valve according to claim 1, characterized in that: The valve core (2) includes a hook structure (21) provided on an end portion thereof adjacent to the driver (4), and a necking structure (22) engaged with the hook structure (21) and further away from the driver (4) than the hook structure (21); the adapter (3) includes a radial notch (321) provided on the second end portion (32), and an avoidance opening (322) connected to the radial notch (321) and closer to the driver (4) than the radial notch (321); when the hook structure (21) and the necking structure (22) of the valve core (2) respectively enter the avoidance opening (322) and the radial notch (321) of the adapter (3) along the radial direction, the valve core (2) is hooked on the adapter (3).

3. The high pressure valve according to claim 2, characterized in that: The extension dimension of the radial notch (321) in the radial direction of the adapter (3) is greater than the radius of the adapter (3) but smaller than the diameter of the adapter (3), so that the central axis of the valve core (2) and the central axis of the adapter (3) can coincide.

4. The high pressure valve according to claim 1, characterized in that: The connection between the adapter (3) and the driver (4) is a threaded connection.

5. The high pressure valve according to claim 1, characterized in that: The high-pressure valve further comprises a compression spring (5) arranged in the accommodating chamber (1113) and sleeved at the connection between the driver (4) and the adapter (3), one end of the compression spring (5) abutting against the driver (4) and the other end thereof abutting against the adapter (3).

6. The high pressure valve according to claim 1, characterized in that: The driver (4) is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

7. The high pressure valve according to claim 1, characterized in that: The valve body (1) comprises a first sub-valve body (11) having the first interface (1111), the axial passage (1112) and the accommodating chamber (1113), and a second sub-valve body (12) detachably connected to the first sub-valve body (11) and having the second interface (121). The high-pressure valve also comprises a gasket (6) which is clamped between the first sub-valve body (11) and the second sub-valve body (12) and connects the first interface (1111), the axial passage (1112) and the second interface (121). When the valve core (2) moves in the axial passage (1112) and abuts against the gasket (6), the valve core (2) and the gasket (6) which are in contact with each other jointly block the portion of the axial passage (1112) used to connect the first interface (1111) and the second interface (121).

8. The high pressure valve according to claim 7, characterized in that: The valve core (2) comprises a first annular boss (23) provided on its end surface close to the first sub-valve body (11), and the first annular boss (23) is used to abut against the gasket (6).

9. The high pressure valve according to claim 7, characterized in that: The gasket (6) is made of polyurethane material or rubber material.

10. The high pressure valve according to claim 1, characterized in that: The high-pressure valve also includes a sealing ring (7) which is arranged in the axial channel (1112) and is embedded in the valve core (2).

Images