Valve body with detachable joint, rotary gate valve, pipeline connector and liquid cooling system

Abstract

The utility model relates to the technical field of valves, and discloses a valve body with a detachable connector, a rotary gate valve, a pipeline connector and a liquid cooling system.The valve body with the detachable connector comprises a valve seat and the connector, a connector flow channel is arranged in the connector, one end of the connector is provided with a valve seat connecting part detachably connected to the valve seat, and the other end of the connector is provided with a rotary gate valve. A pipeline connecting part matched with a pipeline is arranged at the end, away from the valve seat connecting part, of the connector, and the connector flow channel and the valve seat flow channel communicate with each other. When the pipe diameter of the pipeline meets the assembling size of the valve seat, the pipeline can be directly connected with the valve seat; when the valve body is not matched with the valve seat, the connector can be connected to the valve seat, the pipeline is connected to the pipeline connecting part of the connector, and the connector is detachably connected to the valve seat, so that the assembly operation of different pipelines can be met, more selection conditions are brought to a user, and then the connection operation of the pipelines is facilitated; not only can the manufacturing difficulty be reduced, but also the maintenance cost of the valve body can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve body with detachable joints, a rotary gate valve, a pipeline connector and a liquid cooling system. Background Art

[0002] The rotary gate valve is usually used in the control of fluid delivery scenarios. For example, in the server liquid cooling system, the rotary gate valve can be used to connect two fluid delivery pipelines and can also realize the function of opening and closing the fluid delivery pipeline. The rotary gate valve generally includes a valve body and a valve core. The valve core can rotate relative to the valve body to realize the function of opening and closing. One end of the valve body is usually integrally formed with an interface, and the pipeline can be connected to the interface, thereby realizing the purpose of connecting the pipeline to the rotary gate valve.

[0003] In the process of realizing the utility model, it is found that there are at least the following problems in the prior art: the interface on the existing valve body can usually only be adapted to pipes of one diameter. When facing pipes of different diameters, a valve body with an interface of corresponding size is required, which limits the flexibility of valve body and pipe assembly, not only causing inconvenience to the user's assembly, but also increasing maintenance costs.

[0004] Therefore, how to improve the compatibility between the valve body and the pipeline is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] The utility model aims to provide a valve body with a detachable joint, a rotary gate valve, a pipeline connector and a liquid cooling system, which can effectively improve the compatibility between the valve body and the pipeline.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A valve body with a detachable joint, comprising a valve seat, a valve seat flow channel being provided in the valve seat, a movable cavity for accommodating a valve core being provided in the valve seat or at one end thereof, and the valve core being rotatable relative to the valve seat to open or close the valve seat flow channel. The valve body with a detachable joint also comprises a joint, a joint flow channel being provided in the joint, a valve seat connecting portion being detachably connected to the valve seat being provided at one end of the joint, a pipeline connecting portion being adapted to a pipeline being provided at an end of the joint away from the valve seat connecting portion, and the joint flow channel and the valve seat flow channel being communicated with each other.

[0008] In some embodiments, the valve seat connecting portion is threadedly connected to the valve seat.

[0009] In some embodiments, one end of the valve seat flow channel has a valve seat internal threaded interface, and the valve seat connecting portion is threadedly connected to the valve seat internal threaded interface.

[0010] In some embodiments, a seal is provided between the valve seat connecting portion and the valve seat internal thread interface.

[0011] In some embodiments, the pipe connection portion includes an internal pipe threaded interface arranged inside the joint and / or an external pipe threaded interface outside the joint. The pipe can be threadedly connected to the internal pipe threaded interface or the external pipe threaded interface, or after the joint is removed from the valve seat, it can be threadedly connected to the internal pipe threaded interface of the valve seat.

[0012] In some embodiments, the external threaded interface of the pipe is a stepped external threaded interface, and the outer diameter of the stepped external threaded interface decreases from one end of the joint close to the valve seat to the other end; the internal threaded interface of the pipe is a stepped internal threaded interface, and the inner diameter of the stepped internal threaded interface increases from one end of the joint close to the valve seat to the other end, and the pipe is selectively connected to one or more thread segments on the stepped external threaded interface, or is connected to one or more thread segments on the stepped internal threaded interface.

[0013] In some embodiments, the pipe connecting portion includes an internal pipe threaded interface arranged inside the joint and an annular clamping portion arranged on the outer periphery of the joint. The pipe can be threadedly connected to the internal pipe threaded interface, or be sleeved on the outer periphery of the joint away from the valve seat and clamped to the annular clamping portion.

[0014] In some embodiments, the outer circumference of the connector is provided with multiple circles of annular clamping parts, the outer diameters of each of the annular clamping parts are the same, or the outer diameters of multiple circles of the annular clamping parts decrease from one end of the connector close to the valve seat to the other end, and the pipeline is selectively clamped with one or more circles of the annular clamping parts.

[0015] In some embodiments, at least a portion of the outer circumference of the joint is provided with a plane, which is parallel to the central axis of the joint.

[0016] In some embodiments, the outer diameter of the body of the connector is greater than the outer diameter of the valve seat connection portion.

[0017] In some embodiments, a center line of the joint flow channel is staggered with a rotation axis of the valve core.

[0018] A rotary gate valve comprises a valve core and a detachable valve body as described in any one of the above.

[0019] A pipeline connector comprises: a first connecting end and a second connecting end, the first connecting end comprises a first valve body and a first valve core, the first valve core is rotatably connected to the first valve body, and a first lever is provided at one end of the first valve body; the second connecting end comprises a second valve body and a second valve core, the second valve core is rotatably connected to the second valve body, and a second lever is provided at one end of the second valve body, the first lever is connected to the second valve core, and the second lever is connected to the first valve core, the first connecting end and the second connecting end are butt-jointed and can rotate relative to each other to drive the first valve core and the second valve core to rotate, and the first valve body and the second valve body are both detachable valve bodies with a joint as described in any of the above items.

[0020] A liquid cooling system comprises a pipeline and the above-mentioned pipeline connector, wherein the pipeline is connected to the connector.

[0021] Compared with the prior art, the above technical solution has the following advantages:

[0022] The utility model provides a valve body with a detachable joint, a rotary gate valve, a pipe connector and a liquid cooling system, wherein when the pipe diameter of the pipe meets the assembly size of the valve seat, the pipe can be directly connected to the valve seat; when the pipe diameter of the pipe does not match the assembly size of the valve seat, the joint can be connected to the valve seat through the valve seat connecting part, and the pipe can be connected to the pipe connecting part of the joint. By detachably connecting the joint to the valve seat, the assembly operation of different pipes can be met, thereby providing users with more choices and facilitating the connection operation of the pipes. In addition, the split structure of the valve body can not only reduce the manufacturing difficulty but also reduce the maintenance cost of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A cross-sectional view of a valve body with a detachable joint provided in a specific embodiment of the utility model;

[0025] Figure 2 for Figure 1 A cross-sectional view of a valve seat in FIG.

[0026] Figure 3 for Figure 1 A cross-sectional view of a joint in FIG.

[0027] Figure 4A three-dimensional structural view of a rotary gate valve provided by a specific embodiment of the utility model;

[0028] Figure 5 An exploded view of a rotary gate valve provided in a specific embodiment of the utility model;

[0029] Figure 6 The present invention is a cross-sectional view of a pipe connector provided in a specific embodiment of the present invention.

[0030] The reference numerals are as follows:

[0031] 10 is a valve seat, 11 is a valve seat flow channel, 12 is an internal threaded interface of the valve seat, 13 is a sealing groove, 14 is a valve cover, 141 is a lever, and 142 is an arc hole;

[0032] 20 is a valve core, 21 is a card slot;

[0033] 30 is a joint, 31 is a joint flow channel, 32 is a valve seat connection part, and 33 is a pipeline connection part;

[0034] 40 is a sealing member;

[0035] 50 is a first sealing ring;

[0036] 60 is a second sealing ring;

[0037] 70 is a locking member;

[0038] 100 is a first connection end;

[0039] 200 is a second connection terminal. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Please refer to Figure 1 to Figure 5A detachable joint valve body provided by an embodiment of the utility model comprises a valve seat 10, a valve seat flow channel 11 is arranged in the valve seat 10, wherein the flow channel in the valve seat 10 can be a straight flow channel or a curved or bent flow channel, an active cavity for accommodating a valve core 20 is arranged in the valve seat 10 or at one end thereof, that is, an active cavity can be arranged inside the valve seat 10, or an active cavity can be constructed at one end of the valve seat 10 by means of other structures, for example, a valve cover 14 is arranged at one end of the valve seat 10, and the end cavity between the valve cover 14 and the valve seat 10 is the active cavity, a lever 141 is arranged at one end of the valve cover 14 away from the valve seat 10, and an arc-shaped hole 142 is arranged on the valve cover 14, when the two valve bodies are butt-joined, the levers 141 on the two valve bodies can be inserted into each other's arc-shaped holes 142 and connected with each other's valve cores 20, so when the two valve bodies are rotated in two opposite directions, the valve core 20 can rotate relative to the valve seat 10 to open or close the valve seat flow channel 11. In addition to the valve seat 10, the detachable joint valve body also includes a joint 30, in which a joint flow channel 31 is provided, one end of the joint 30 is provided with a valve seat connecting portion 32 detachably connected to the valve seat 10, and an end of the joint 30 away from the valve seat connecting portion 32 is provided with a pipeline connecting portion 33 adapted to the pipeline, and the joint flow channel 31 and the valve seat flow channel 11 are connected to each other. When the pipe diameter meets the assembly size of the valve seat 10, the pipe can be directly connected to the valve seat 10; when the pipe diameter does not match the assembly size of the valve seat 10, the connector 30 can be connected to the valve seat 10 through the valve seat connecting portion 32, and the pipe can be connected to the pipe connecting portion 33 of the connector 30; in addition, a valve seat 10 can be selected to match multiple connectors 30. When the pipe to be connected matches one of the connectors 30, the connector 30 can be connected to the valve seat 10. Therefore, by detachably connecting the connector 30 to the valve seat 10, the assembly operation of different pipes can be met, thereby providing users with more options and facilitating the connection operation of the pipes. In addition, the split structure of the valve body can not only reduce the manufacturing difficulty, but also reduce the maintenance cost of the valve body. For example, when the connector 30 is damaged, only the connector 30 can be replaced without replacing the entire valve body.

[0042] In some embodiments, the valve seat connection portion 32 is threadedly connected to the valve seat 10. For example, when the valve seat 10 is provided with an external thread, the valve seat connection portion 32 is provided with an internal thread that matches the external thread. When the valve seat 10 is provided with an internal thread, the valve seat connection portion 32 is provided with an external thread that matches the internal thread. Figure 2One end of the valve seat flow channel 11 is provided with a valve seat internal thread interface 12, and the valve seat connecting portion 32 is threadedly connected to the valve seat internal thread interface 12, wherein the inner diameter of the valve seat internal thread interface 12 is preferably larger than the diameter of the valve seat flow channel 11, that is, the end of the valve seat 10 facing the joint 30 is provided with a countersunk hole, the countersunk hole is coaxial with the valve seat flow channel 11, and the valve seat internal thread interface 12 is arranged on the inner side wall of the countersunk hole. In order to ensure the axial position of the joint 30 and the valve seat 10, as shown in FIG. Figure 3 As shown, the outer diameter of the body of the joint 30 is larger than the outer diameter of the valve seat connection part 32. When the body of the joint 30 contacts the end face of the valve seat 10, it indicates that the valve seat connection part 32 has been completely screwed into the valve seat internal thread interface 12. Further, a sealing member 40 is provided between the valve seat connection part 32 and the valve seat internal thread interface 12. The sealing member 40 can prevent the leakage of the liquid transported in the valve seat 10. A sealing groove 13 can be provided in the counterbore. The sealing groove 13 can be located on the circumferential surface of the counterbore, that is, the sealing member 40 is provided in the sealing groove 13. When the valve seat connection part 32 is threadedly connected in the valve seat internal thread interface 12, the outer periphery of the end of the valve seat connection part 32 is passed through the sealing member 40. A sealing gasket ring can also be provided on the inner end face of the counterbore. When the valve seat connection part 32 is connected, its end can press the sealing ring against the inner end face of the counterbore, thereby achieving the sealing of the connection position between the joint 30 and the valve seat 10.

[0043] In some embodiments, the pipe connection portion 33 includes an internal pipe thread interface provided inside the joint 30 and / or an external pipe thread interface provided outside the joint 30, that is, the internal pipe thread interface and the external pipe thread interface can be provided selectively or simultaneously, and the pipe can be threadedly connected to the internal pipe thread interface or the external pipe thread interface, or after the joint 30 is removed from the valve seat 10, it can be threadedly connected to the internal pipe thread interface 12 of the valve seat. The internal pipe thread interface and the external pipe thread interface can improve the threaded connection adaptability of the joint 30 to the pipe.

[0044] In some embodiments, the external threaded interface of the pipeline is a stepped external threaded interface, and the outer diameter of the stepped external threaded interface decreases from one end of the joint 30 close to the valve seat 10 to the other end, that is, the outer periphery of the joint 30 is provided with multiple threaded sections; the internal threaded interface of the pipeline is a stepped internal threaded interface, and the inner diameter of the stepped internal threaded interface increases from one end of the joint 30 close to the valve seat 10 to the other end, that is, multiple threaded sections are provided inside the joint 30. The pipeline is selectively connected to one or more threaded sections on the stepped external threaded interface, or to one or more threaded sections on the stepped internal threaded interface. When the diameter of the pipeline is small, a threaded section with a smaller diameter can be selected for connection, and when the diameter of the pipeline is large, a threaded section with a larger diameter can be selected for connection to meet the requirements of pipelines with different diameters.

[0045] In some embodiments, the pipe connection portion 33 includes a pipe internal threaded interface disposed inside the joint 30 and an annular clamping portion disposed on the outer periphery of the joint 30. The annular clamping portion may be an annular protrusion and / or an annular clamping groove 21 disposed on the outer periphery of the joint 30. The pipe may be threadedly connected to the pipe internal threaded interface, or may be sleeved on the outer periphery of the end of the joint 30 away from the valve seat 10 and clamped to the annular clamping portion. When an annular protrusion is disposed on the outer periphery of the joint 30, the pipe should be made of an elastically deformable material, such as a plastic pipe. The pipe may be elastically deformed and sleeved tightly on the joint 30 under the support of the annular protrusion; when an annular clamping groove 21 is disposed on the outer periphery of the joint 30, a clamping ring that cooperates with the annular clamping groove 21 may be disposed in the pipe.

[0046] In some embodiments, the outer circumference of the joint 30 is provided with multiple circles of annular clamping parts, and the outer diameters of the annular clamping parts are the same. For example, multiple circles of annular clamping parts with the same outer diameter can be distributed at intervals on the outer circumference of the joint 30, or the outer diameters of multiple circles of annular clamping parts decrease from one end of the joint 30 close to the valve seat 10 to the other end. For example, multiple circles of annular clamping parts with different outer diameters can be directly provided on the outer circumference of the joint 30, or multiple sections of cylindrical sections with different outer diameters can be provided on the outer circumference of the joint 30, and the outer diameters of each cylindrical section decrease from one end of the joint 30 close to the valve seat 10 to the other end, and each cylindrical section is provided with at least one circle of annular clamping parts. During assembly, the pipeline is selectively clamped with one or more circles of annular clamping parts, and when clamped with multiple circles of annular clamping parts, the connection stability of the pipeline can be improved.

[0047] In some embodiments, in order to facilitate the screwing of the joint 30, at least a portion of the outer circumference of the joint 30 is provided with a plane, and at least a portion of the outer circumference refers to a portion of the axial direction of the joint 30. For example, a plane can be provided on the outer circumference of the section close to the valve seat connection portion 32 on the joint 30, and a pipe connection portion 33 can be provided on the outer circumference of the section away from the end of the valve seat 10 on the joint 30. The plane is parallel to the central axis of the joint 30. For example, the joint 30 is a multi-prism structure, preferably a hexagonal prism, and the six faces of the outer circumference of the hexagonal prism are all planes. In addition, the joint 30 can be selected as a cylindrical structure, and the outer circumference of the cylindrical structure is provided with one or more planes.

[0048] In some embodiments, the center line of the joint flow channel 31 is staggered with the rotation axis of the valve core 20, that is, the center line of the joint flow channel 31 is not coaxial with the rotation axis of the valve core 20. Since the joint 30 is connected to the valve seat 10 and the pipeline is connected to the joint 30, when the valve seat 10 rotates, the pipeline will be driven to rotate around its own axis through the joint 30, thereby causing the pipeline to twist and deform, which will lead to the problem of loosening of the pipeline. Especially for the structure with a leakage sensor in the pipeline, the twisting and deformation of the pipeline may cause the leakage sensor to break or other problems of loss of detection function. Therefore, in this embodiment, by staggering the center line of the joint flow channel 31 with the rotation axis of the valve core 20, the pipeline can be prevented from rotating and twisting around its own axis, which will only cause the pipeline to rotate around the rotation axis of the valve core 20, that is, the pipeline will rotate eccentrically, but the twisting and deformation is small, and the damage to the pipeline is relatively small.

[0049] The utility model also provides a rotary gate valve. Figure 1 and Figure 5 As shown, the rotary gate valve includes a valve core 20 and a detachable joint valve body provided by any of the above embodiments, and further includes a valve cover 14, a first sealing ring 50, a second sealing ring 60 and a locking member 70. The valve cover 14 is fixed to the end of the valve seat 10 away from the joint 30. The two can be radially fixedly connected by screws or fixed in other ways. An active cavity is formed between the inner end surface of the valve cover 14 and the valve seat 10. The valve core 20 is located in the active cavity. The valve cover 14 has an arc hole 142. The two end surfaces of the valve core 20 are in contact with the valve seat 10 and the valve cover 14 through the first sealing ring 50 and the second sealing ring 60, respectively, to play a sealing role. The beneficial effects of the rotary gate valve can be referred to the above-mentioned detachable joint valve body, which will not be repeated here.

[0050] The utility model also provides a pipeline connector, such as Figure 6 As shown, the pipeline connector includes: a first connection end 100 and a second connection end 200, the first connection end 100 includes a first valve body and a first valve core, the first valve core is rotatably connected to the first valve body, and a first lever is provided at one end of the first valve body; the second connection end 200 includes a second valve body and a second valve core, the second valve core is rotatably connected to the second valve body, and a second lever is provided at one end of the second valve body, the first lever is connected to the second valve core, and the second lever is connected to the first valve core, for example, reference can be made to Figure 4 and Figure 5The end of the first lever can be inserted from the arc hole 142 of the second valve body to extend into the slot 21 set on the second valve core. Similarly, the end of the second lever can be inserted from the arc hole 142 of the first valve body to extend into the slot 21 set on the first valve core. The first connecting end 100 and the second connecting end 200 are connected and can rotate relatively, so that the second valve core is driven by the first lever, and the second valve core is driven to rotate by the second lever. The first valve body and the second valve body are both detachable joint valve bodies provided by any of the above embodiments, wherein the outer periphery of the ends of the first lever and the second lever are provided with a clamping protrusion, which extends into the valve cover 14 and is connected to the valve core 20 and can be clamped in the valve cover 14 to prevent the first connecting end 100 and the second connecting end 200 from being separated from each other. In addition, in order to facilitate locking the open position and closed position of the valve core 20, a valve core 20 opening locking hole and a valve core 20 closing locking hole can be set on the valve core 20, and an axially movable locking member 70 is set on the valve seat 10. When the valve core 20 rotates to the valve core 20 opening locking hole corresponding to the locking member 70, the head of the locking member 70 can extend into the valve core 20 opening locking hole to lock the position of the valve core 20; when the valve core 20 rotates to the valve core 20 closing locking hole corresponding to the locking member 70, the head of the locking member 70 can extend into the valve core 20 closing locking hole to lock the position of the valve core 20. The beneficial effects of the pipeline connector can be referred to the above-mentioned joint detachable valve body, which will not be repeated here.

[0051] The present utility model also provides a liquid cooling system, including a pipeline and the pipeline connector provided in the above embodiment, the pipeline is connected to the joint 30, and further includes a liquid pump, which can transport liquid through the pipeline and the pipeline connector to achieve a cooling effect on the heating element. The beneficial effects of the liquid cooling system can be referred to the above pipeline connector, which will not be repeated here.

[0052] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0053] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0054] The above is a detailed introduction to a detachable joint valve body, a rotary gate valve, a pipe connector and a liquid cooling system provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A valve body with a detachable joint, comprising a valve seat (10), a valve seat flow channel (11) being provided in the valve seat (10), a movable cavity for accommodating a valve core (20) being provided in the valve seat (10) or at one end thereof, the valve core (20) being rotatable relative to the valve seat (10) to open or close the valve seat flow channel (11), It is characterized in that It also includes a joint (30), wherein a joint flow channel (31) is provided in the joint (30), one end of the joint (30) is provided with a valve seat connecting portion (32) detachably connected to the valve seat (10), and an end of the joint (30) away from the valve seat connecting portion (32) is provided with a pipeline connecting portion (33) adapted to a pipeline, and the joint flow channel (31) and the valve seat flow channel (11) are connected to each other.

2. The detachable joint valve body according to claim 1, It is characterized in that The valve seat connecting portion (32) is threadedly connected to the valve seat (10).

3. The detachable joint valve body according to claim 2, It is characterized in that One end of the valve seat flow channel (11) has a valve seat internal threaded interface (12), and the valve seat connecting portion (32) is threadedly connected to the valve seat internal threaded interface (12).

4. The detachable joint valve body according to claim 3, It is characterized in that A sealing member (40) is provided between the valve seat connecting portion (32) and the valve seat internal threaded interface (12).

5. The detachable joint valve body according to claim 3, It is characterized in that The pipe connection portion (33) includes an internal pipe threaded interface arranged inside the joint (30) and / or an external pipe threaded interface arranged outside the joint (30); the pipe can be threadedly connected to the internal pipe threaded interface or the external pipe threaded interface, or after the joint (30) is removed from the valve seat (10), it can be threadedly connected to the internal pipe threaded interface (12) of the valve seat.

6. The detachable joint valve body according to claim 5, It is characterized in that The external threaded interface of the pipeline is a stepped external threaded interface, and the external diameter of the stepped external threaded interface decreases from one end of the joint (30) close to the valve seat (10) to the other end; the internal threaded interface of the pipeline is a stepped internal threaded interface, and the internal diameter of the stepped internal threaded interface increases from one end of the joint (30) close to the valve seat (10) to the other end, and the pipeline is selectively connected to one or more threaded segments on the stepped external threaded interface, or is connected to one or more threaded segments on the stepped internal threaded interface.

7. The detachable joint valve body according to claim 5, It is characterized in that The pipe connection portion (33) comprises a pipe internal threaded interface arranged inside the joint (30) and an annular clamping portion arranged on the outer periphery of the joint (30); the pipe can be threadedly connected to the pipe internal threaded interface, or sleeved on the outer periphery of an end of the joint (30) away from the valve seat (10) and clamped to the annular clamping portion.

8. The detachable joint valve body according to claim 7, It is characterized in that The outer circumference of the joint (30) is provided with a plurality of annular clamping parts, the outer diameters of the annular clamping parts are the same, or the outer diameters of the annular clamping parts of the plurality of circles decrease from one end of the joint (30) close to the valve seat (10) to the other end, and the pipeline is selectively clamped with one or more of the annular clamping parts.

9. The detachable joint valve body according to claim 1, It is characterized in that At least a partial section of the outer circumference of the joint (30) is provided with a plane, which is parallel to the central axis of the joint (30).

10. The detachable joint valve body according to claim 1, It is characterized in that The outer diameter of the body of the joint (30) is greater than the outer diameter of the valve seat connecting portion (32).

11. The detachable joint valve body according to any one of claims 1 to 10, It is characterized in that The center line of the joint flow channel (31) and the rotation axis of the valve core (20) are arranged to be staggered.

12. A rotary gate valve, It is characterized in that It comprises a valve core (20) and a detachable joint valve body as claimed in any one of claims 1 to 11.

13. A pipe connector, include: A first connecting end (100) and a second connecting end (200), the first connecting end (100) comprising a first valve body and a first valve core, the first valve core being rotatably connected to the first valve body, and a first lever being provided at one end of the first valve body; the second connecting end (200) comprising a second valve body and a second valve core, the second valve core being rotatably connected to the second valve body, and a second lever being provided at one end of the second valve body, the first lever being connected to the second valve core, and the second lever being connected to the first valve core, the first connecting end (100) and the second connecting end (200) being butt-jointed and rotatable relative to each other to drive the first valve core and the second valve core to rotate, characterized in that the first valve body and the second valve body are both detachable valve bodies according to any one of claims 1 to 11.

14. A liquid cooling system, It is characterized in that It comprises a pipe and the pipe connector according to claim 13, wherein the pipe is connected to the joint (30).

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