Reversing zero-leakage three-way ball valve

Abstract

The utility model relates to the field of valve bodies, in particular to a reversing zero-leakage three-way ball valve which comprises a valve body, a blanking cap, a sealing assembly and at least two valve covers, a main flow channel and a side flow channel are formed in the valve body at intervals and both penetrate through the outer wall of the valve body, the main flow channel is communicated with the side flow channel, and the end of the blanking cap is embedded into the inner wall of the side flow channel and seals the side flow channel. The sealing assembly comprises a first sealing ring and at least two second sealing rings, the end of the first sealing ring is arranged at the end of the blocking cover in a sleeving mode to form sealing, the second sealing rings correspond to the valve covers in a one-to-one mode, and the inner wall of the second sealing ring is away from the inner wall of the blocking cover. The inner ring of the sealing ring II sleeves the end part of the valve cover to form sealing. According to the valve, the first sealing ring and the second sealing ring are arranged, so that fluid in the side flow channel and the main flow channel is stably discharged from the through cavity, zero leakage of the valve body to the fluid is achieved, and the stability of the valve body to fluid transmission is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valve body, especially to a reversing zero leakage three-way ball valve. BACKGROUND

[0002] The reversing three-way ball valve is a special valve device with three channels, and the rotation of the ball can realize the reversing control of the fluid. The reversing three-way ball valve mainly consists of a valve body, a ball, a valve seat, a valve cover, an actuator and a sealing element. The valve cover is connected to the valve body, three channels are formed in the valve body, the ball is located inside the valve body and rotates to change the flow direction of the fluid. The valve seat tightly cooperates with the ball to form a sealing barrier to prevent fluid leakage. The actuator is used to drive the rotation of the ball to realize the reversing control of the fluid.

[0003] In the prior art, the valve cover is connected to the valve body, and the fluid in the valve body is easy to overflow from the connection between the valve body and the valve cover, causing leakage of the fluid and reducing the stability of the reversing three-way ball valve in fluid transmission. CONTENT OF THE INVENTION

[0004] In order to improve the problem that the fluid is easy to overflow from the connection between the valve body and the valve cover, the present application provides a reversing zero leakage three-way ball valve.

[0005] The reversing zero leakage three-way ball valve provided by the present application adopts the following technical scheme:

[0006] The reversing zero leakage three-way ball valve comprises a valve body, a plug cover, a sealing assembly and at least two valve covers. The valve body is spaced apart to form a main flow channel and a side flow channel. The length direction of the main flow channel and the length direction of the side flow channel are perpendicular to each other. The main flow channel and the side flow channel both penetrate the outer wall of the valve body, and the main flow channel is connected to the side flow channel. The end of the plug cover is embedded in the inner wall of the side flow channel away from the plug cover, and the through cavity is connected to the side flow channel. The end of the other valve cover is embedded in the inner wall of the main flow channel, and the through cavity is connected to the main flow channel. The sealing assembly comprises a sealing ring one and at least two sealing ring twos. The inner ring of the sealing ring one is sleeved on the end of the plug cover to form a seal, and the outer ring of the sealing ring one abuts against the inner wall of the side flow channel to form a seal. The sealing ring twos correspond to the valve covers one by one. The inner ring of the sealing ring two is sleeved on the end of the valve cover to form a seal. The outer ring of one of the sealing ring twos abuts against the inner wall of the side flow channel to form a seal, and the outer ring of the other sealing ring abuts against the inner wall of the main flow channel to form a seal.

[0007] By adopting the technical scheme, when fluid flows between the main flow channel and the side flow channel, the inner ring of the sealing ring one abuts against the outer circumferential surface of the cover to form a seal, and the outer ring of the sealing ring one abuts against the inner wall of the side flow channel to form a seal, so that fluid in the side flow channel is not easy to overflow from the connection between the cover and the valve body, and the stability of fluid storage of the valve body is realized; meanwhile, the inner ring of one of the sealing ring two abuts against the outer circumferential surface of the valve cover to form a seal, and the outer ring of the sealing ring two abuts against the inner wall of the main flow channel to form a seal, so that fluid in the main flow channel is not easy to overflow from the connection between the valve cover and the valve body, and the fluid in the main flow channel is stably discharged from the through cavity, and the inner ring of the other sealing ring two abuts against the outer circumferential surface of the valve cover to form a seal, and the outer ring of the sealing ring two abuts against the inner wall of the side flow channel to form a seal, so that fluid in the side flow channel is not easy to overflow from the connection between the valve cover and the valve body, and the fluid in the side flow channel is stably discharged from the through cavity, the zero leakage of the valve body to fluid is realized, and the stability of fluid transmission of the valve body is further improved.

[0008] Optionally, the valve further comprises a ball and an execution assembly, the inner wall of the main flow channel is provided with a rotating cavity for the ball to rotate, the rotating cavity is communicated with the side flow channel, the execution assembly comprises a valve stem, the surface of the valve body is provided with an execution cavity for the valve stem to rotate, the valve stem is connected to the ball at an end, the axis of the valve stem is perpendicular to the length direction of the main flow channel, and the axis of the valve stem is perpendicular to the length direction of the side flow channel; the surface of the ball is provided with an adjusting flow channel one and an adjusting flow channel two at intervals, the adjusting flow channel one penetrates the outer wall of the ball, the adjusting flow channel two is communicated with the adjusting flow channel one, the length direction of the adjusting flow channel two is perpendicular to the length direction of the adjusting flow channel one, the length direction of the adjusting flow channel one is perpendicular to the axis of the valve stem, and the length direction of the adjusting flow channel two is perpendicular to the axis of the valve stem.

[0009] By adopting the technical scheme, when the valve stem is driven to rotate, the adjusting flow channel one is communicated with the main flow channel, and the adjusting flow channel two faces the cover, the fluid in the main flow channel is discharged from the through cavity on the valve cover in the main flow channel through the adjusting flow channel one, and the opening of the two-way function of the valve body is realized; the valve stem continues to rotate by 90 degrees, one end of the adjusting flow channel one faces the cover, the other end of the adjusting flow channel one faces the valve cover in the side flow channel, and the adjusting flow channel two faces the main flow channel, the fluid in the main flow channel is sequentially discharged from the through cavity on the valve cover in the side flow channel through the adjusting flow channel two and the adjusting flow channel one, and the opening of another two-way function of the valve body is realized; the valve stem continues to rotate by 90 degrees, the adjusting flow channel one is communicated with the main flow channel, and the adjusting flow channel two faces the valve cover in the side flow channel, the fluid in the main flow channel is discharged from the through cavity on the valve cover in the main flow channel through the adjusting flow channel one, and the fluid in the main flow channel is sequentially discharged from the through cavity on the valve cover in the side flow channel through the adjusting flow channel one and the adjusting flow channel two, the opening of the three-way function of the valve body is realized, the adjustment and control of fluid in any direction of the valve body are realized, and the convenience of use of the reversing zero leakage three-way ball valve by the user is improved.

[0010] Optionally, the execution assembly further comprises a butterfly handle and a directional block, the butterfly handle is connected to the end of the valve stem away from the ball, and the directional block is connected to the surface of the butterfly handle facing the valve body; when the adjusting flow passage II faces the plug, and the adjusting flow passage I communicates with the main flow passage, the directional block faces the valve cover on the main flow passage.

[0011] By adopting the above technical scheme, the butterfly handle is connected to the end of the valve stem away from the ball, and the butterfly handle provides a force point for rotating the valve stem, thereby improving the convenience of using the reversing zero-leakage three-way ball valve; meanwhile, when the adjusting flow passage II faces the plug, and the adjusting flow passage I communicates with the main flow passage, the directional block faces the valve cover on the main flow passage, so that the staff can directly know the opening state of the three-way function or the two-way function of the valve body, thereby further improving the convenience of using the valve body.

[0012] Optionally, the execution assembly further comprises a sealing ring III, the sealing ring III is coaxially sleeved on the outer circumferential surface of the valve stem, the inner circumferential wall of the sealing ring III abuts against the outer circumferential surface of the valve stem to form a seal, and the outer circumferential wall of the sealing ring III abuts against the inner wall of the execution cavity to form a seal.

[0013] By adopting the above technical scheme, the sealing ring III is coaxially sleeved on the outer circumferential surface of the valve stem, the inner circumferential wall of the sealing ring III abuts against the outer circumferential surface of the valve stem to form a seal, and the outer circumferential wall of the sealing ring III abuts against the inner wall of the execution cavity to form a seal, so that the fluid in the main flow passage is not easy to overflow from the abutment between the valve stem and the inner wall of the execution cavity, thereby improving the sealing stability of the valve body to the fluid.

[0014] Optionally, the execution assembly further comprises a screw, the end of the screw is threaded through the butterfly handle and is threadedly connected to the valve stem to form a connection.

[0015] By adopting the above technical scheme, the end of the screw is threaded through the butterfly handle and is threadedly connected to the valve stem to form a connection, thereby realizing the detachable connection of the butterfly handle and the valve stem, and facilitating the replacement of the butterfly handle.

[0016] Optionally, the valve body is connected with an abutting assembly, the abutting assembly comprises at least two valve seats I, one end of one of the valve seats I is connected to the valve seat end on the main flow passage, the other end of the valve seat I abuts against the surface of the ball to form a seal, and one end of the other valve seat I is connected to the inner wall of the rotating cavity away from the valve seat, and the other end of the valve seat I abuts against the surface of the ball to form a seal.

[0017] By adopting the above technical scheme, one of the valve seats I is connected to the valve seat end on the main flow passage, and the other valve seat I is connected to the inner wall of the rotating cavity away from the valve seat, and the two valve seats I abut against both sides of the ball to form a seal, so that the fluid is not easy to overflow from the ball and the inner wall of the rotating cavity into the main flow passage, thereby reducing the occurrence of fluid overflow in the valve body.

[0018] Optionally, the abutting assembly further comprises at least two valve seats, one end of one of the valve seats is connected to the end of the plug cover facing the rotating cavity, the other end of the valve seat abuts against the surface of the ball to form a seal, one end of the other valve seat is connected to the end of the valve cover located on the side flow channel, and the other end of the valve seat abuts against the surface of the ball to form a seal.

[0019] By adopting the technical scheme, one valve seat is connected to the end of the plug cover facing the rotating cavity, the other valve seat is connected to the end of the valve cover located on the side flow channel, and the two valve seats abut against the two sides of the ball to form seals, so that the fluid is less likely to overflow from the inner wall of the rotating cavity and the ball into the side flow channel, and the occurrence of fluid overflow in the valve body is further reduced.

[0020] Optionally, the end of the plug cover is provided with a limiting cavity for embedding the end of the valve seat, and the end of the valve seat abuts against the inner wall of the limiting cavity to form a seal.

[0021] By adopting the technical scheme, when the end of the valve seat is embedded in the limiting cavity, the end of the valve seat abuts against the inner wall of the limiting cavity to form a seal, so that the valve seat is less likely to be displaced on the plug cover, thereby improving the limiting stability of the valve seat on the plug cover, and the end of the valve seat abuts against the inner wall of the limiting cavity to form a seal, and the other end of the valve seat abuts against the spherical surface of the ball to form a seal, thereby further reducing the occurrence of fluid overflow in the valve body.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The sealing ring one and the sealing ring two are arranged to enable the fluid in the side flow channel and the main flow channel to be stably discharged from the through cavity, realize zero leakage of the valve body to the fluid, and further improve the stability of the valve body in fluid transmission.

[0024] 2. The valve rod is arranged to realize adjustment and control of the valve body to the fluid in any flow direction, thereby improving the convenience of the user in using the reversing zero leakage three-way ball valve.

[0025] 3. The butterfly handle and the directional block are arranged, the directional block faces the valve cover located on the main flow channel, so that the staff can directly know the opening state of the three-way function or the two-way function of the valve body, thereby further improving the convenience of using the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 is a sectional view of the embodiment of the present application, mainly showing the plug cover.

[0028] Explanation of reference signs: 1, valve body; 11, main flow channel; 12, side flow channel; 13, rotating cavity; 14, positioning cavity two; 15, execution cavity; 2, plug cover; 21, limiting cavity; 3, sealing assembly; 31, sealing ring one; 32, sealing ring two; 4, ball; 41, adjusting flow channel one; 42, adjusting flow channel two; 5, execution assembly; 51, valve rod; 511, sealing groove; 52, butterfly handle; 53, directional block; 54, sealing ring three; 55, screw; 56, gasket; 6, valve cover; 61, through cavity; 62, positioning cavity one; 63, positioning cavity three; 7, abutting assembly; 71, valve seat one; 72, valve seat two. DETAILED DESCRIPTION

[0029] The following will be described in detail with reference to the accompanying drawings Figures 1-2 The present application is further described in detail.

[0030] The present application discloses a reversing zero-leakage three-way ball valve. Referring to Figure 1 and Figure 2 A reversing zero-leakage three-way ball valve includes a valve body 1, a plug cover 2, a sealing assembly 3, a ball 4, an execution assembly 5, and at least two valve covers 6. The valve body 1 is provided with a main flow channel 11 and a side flow channel 12 at intervals on the outer wall. The length direction of the main flow channel 11 and the length direction of the side flow channel 12 are perpendicular to each other. The main flow channel 11 and the side flow channel 12 both penetrate the outer wall of the valve body 1 along the length direction thereof, and the main flow channel 11 communicates with the side flow channel 12. In the present application, the number of valve covers 6 is two. The valve cover 6 is provided with a through cavity 61 on the cover surface. The through cavity 61 penetrates the cover surface of the valve cover 6 along the depth direction thereof. One end of the length direction of the side flow channel 12 is used for embedding the plug cover 2, and the other end of the length direction of the side flow channel 12 is used for embedding one of the valve covers 6. One end of the length direction of the main flow channel 11 is used for flowing into the fluid, and the other end of the length direction of the main flow channel 11 is used for embedding the other valve cover 6.

[0031] Referring to Figure 1 and Figure 2 The sealing assembly 3 can improve the sealing performance of the valve body 1. The sealing assembly 3 includes a sealing ring one 31 and at least two sealing ring twos 32. In the present application, the number of sealing ring twos 32 is two. The materials of the sealing ring one 31 and the sealing ring twos 32 are both nitrile rubber, which has a certain deformation ability. The sealing ring one 31 is coaxially sleeved on the end of the plug cover 2 located in the side flow channel 12. The inner circle of the sealing ring one 31 abuts against the outer peripheral surface of the plug cover 2 to form a seal, and the outer circle of the sealing ring one 31 abuts against the inner wall of the side flow channel 12 to form a seal. The fluid in the side flow channel 12 is not easy to overflow from the connection between the plug cover 2 and the inner wall of the side flow channel 12, thereby ensuring the sealing stability of the valve body 1 to the fluid.

[0032] Referring to Figure 1 and Figure 2, the sealing ring two 32 is coaxially sleeved on the end of the valve cover 6 located on the side flow channel 12, the inner wall of the sealing ring two 32 abuts against the outer circumferential surface of the valve cover 6 to form a seal, and the outer wall of the sealing ring two 32 abuts against the inner wall of the side flow channel 12 to form a seal, so that the fluid in the side flow channel 12 is not easy to overflow from the connection between the valve cover 6 and the inner wall of the side flow channel 12, thereby ensuring that the fluid in the side flow channel 12 is stably discharged from the through cavity 61 on the valve cover 6 located on the side flow channel 12; the other sealing ring two 32 is coaxially sleeved on the end of the valve cover 6 located on the main flow channel 11, the inner wall of the sealing ring two 32 abuts against the outer circumferential surface of the valve cover 6 to form a seal, and the outer wall of the sealing ring two 32 abuts against the inner wall of the main flow channel 11 to form a seal, so that the fluid in the main flow channel 11 is not easy to overflow from the connection between the valve cover 6 and the inner wall of the main flow channel 11, thereby ensuring that the fluid in the main flow channel 11 is stably discharged from the through cavity 61 on the valve cover 6 located on the main flow channel 11, and realizing zero leakage of the valve body 1 to the fluid and further improving the stability of the valve body 1 to the fluid transmission.

[0033] With reference to Figure 1 and Figure 2 , the inner wall of the main flow channel 11 is provided with a rotating cavity 13 for rotating the ball 4, the rotating cavity 13 is communicated with the side flow channel 12, the outer circumferential surface of the ball 4 is provided with an adjusting flow channel one 41 and an adjusting flow channel two 42 at intervals, the length direction of the adjusting flow channel one 41 and the length direction of the adjusting flow channel two 42 are perpendicular to each other, the adjusting flow channel one 41 penetrates the outer wall of the ball 4 along the length direction of the adjusting flow channel one 41, and the adjusting flow channel two 42 is communicated with the adjusting flow channel one 41; the valve body 1 is provided with an abutting assembly 7, the abutting assembly 7 can increase the sealing property between the inner wall of the rotating cavity 13 and the ball 4, the abutting assembly 7 comprises at least two valve seats one 71 and at least two valve seats two 72, the number of the valve seats one 71 and the valve seats two 72 is both two in the embodiment of the application, and the materials of the valve seats one 71 and the valve seats two 72 are polytetrafluoroethylene, which has a certain deformation ability.

[0034] With reference to Figure 1 and Figure 2 , the end of the valve cover 6 located on the main flow channel 11 is provided with a positioning cavity one 62 for embedding the end of the valve seat one 71, one end of the valve seat one 71 abuts against the inner wall of the positioning cavity one 62 to form a seal, and the other end of the valve seat one 71 abuts against the surface of the ball 4 to form a seal, so that the fluid is not easy to enter the main flow channel 11 from the abutment between the ball 4 and the inner wall of the rotating cavity 13; the inner wall of the rotating cavity 13 away from the valve cover 6 is provided with a positioning cavity two 14 for embedding the end of the valve seat one 71, one end of the valve seat one 71 abuts against the inner wall of the positioning cavity two 14 to form a seal, and the other end of the valve seat one 71 abuts against the surface of the ball 4 to form a seal, so that the fluid is not easy to enter the main flow channel 11 from the abutment between the ball 4 and the inner wall of the rotating cavity 13, thereby reducing the occurrence of fluid overflow in the valve body 1.

[0035] With reference to Figure 1 and Figure 2The end of the plug 2 towards the rotating cavity 13 is provided with a limiting cavity 21 for embedding the end of the valve seat two 72. One end of the valve seat two 72 abuts against the inner wall of the limiting cavity 21 to form a seal. The other end of the valve seat two 72 abuts against the surface of the ball 4 to form a seal, so that the fluid is not easy to enter the side flow channel 12 from the abutting position between the ball 4 and the inner wall of the rotating cavity 13. The end of the valve cover 6 located on the side flow channel 12 towards the rotating cavity 13 is provided with a positioning cavity three 63 for embedding the end of the valve seat two 72. One end of the valve seat two 72 abuts against the inner wall of the positioning cavity three 63 to form a seal. The other end of the valve seat two 72 abuts against the surface of the ball 4 to form a seal, so that the fluid is not easy to enter the side flow channel 12 from the abutting position between the ball 4 and the inner wall of the rotating cavity 13, further reducing the occurrence of fluid overflow in the valve body 1.

[0036] With reference to Figure 1 And Figure 2 The execution assembly 5 is connected to the ball 4. The execution assembly 5 can control the rotation of the ball 4. The execution assembly 5 includes a valve rod 51, a butterfly handle 52, a directional block 53, a sealing ring three 54, a screw 55 and a gasket 56. The top surface of the valve body 1 is provided with an execution cavity 15 for rotating the valve rod 51. The execution cavity 15 is communicated with the rotating cavity 13. The end of the valve rod 51 is embedded in the surface of the ball 4 to form a fixed connection. In the embodiment of the application, the material of the sealing ring three 54 is nitrile rubber, which has a certain deformation ability. The number of the sealing ring three 54 can be one, two or more. In the embodiment of the application, the number of the sealing ring three 54 is two. The outer circumferential surface of the valve rod 51 is provided with a plurality of sealing grooves 511 for embedding the sealing ring three 54. The arrangement direction of the sealing grooves 511 and the axis of the valve rod 51 are parallel to each other. The inner circle of the sealing ring three 54 abuts against the inner wall of the sealing groove 511 to form a seal. The outer circle of the sealing ring three 54 abuts against the inner wall of the execution cavity 15 to form a seal, so that the fluid in the rotating cavity 13 is not easy to overflow from the abutting position between the valve rod 51 and the inner wall of the execution cavity 15, further improving the sealing performance of the valve body 1 to the fluid.

[0037] With reference to Figure 1 And Figure 2 The axis of the valve rod 51 and the length direction of the main flow channel 11 are perpendicular to each other. The axis of the valve rod 51 and the length direction of the side flow channel 12 are perpendicular to each other. The length direction of the adjusting flow channel one 41 and the axis of the valve rod 51 are perpendicular to each other. The length direction of the adjusting flow channel two 42 and the axis of the valve rod 51 are perpendicular to each other. The end of the valve rod 51 away from the ball 4 protrudes from the top surface of the valve body 1. The end of the screw 55 is sequentially provided through the butterfly handle 52 and the gasket 56 and is threadedly fastened and fixed on the rod surface of the valve rod 51, realizing the detachable connection between the butterfly handle 52 and the valve rod 51. The butterfly handle 52 provides a force application surface for driving the valve rod 51 to rotate, thereby improving the convenience of using the valve body 1.

[0038] With reference to Figure 1 And Figure 2, the directional block 53 is integrally formed on the surface of the handle 52 facing the valve body 1. When the handle 52 is held and rotated to drive the valve stem 51, the adjusting flow channel one 41 is connected to the main flow channel 11, and the adjusting flow channel two 42 faces the plug cover 2, the directional block 53 faces the valve cover 6 located on the main flow channel 11, the fluid in the main flow channel 11 is discharged from the through cavity 61 on the valve cover 6 located on the main flow channel 11 through the adjusting flow channel one 41, and one of the two-way functions of the valve body 1 is opened; the valve stem 51 is continuously rotated by ninety degrees, the adjusting flow channel one 41 one end faces the plug cover 2, the adjusting flow channel one 41 the other end faces the valve cover 6 located on the side flow channel 12, and the adjusting flow channel two 42 faces the main flow channel 11, the fluid in the main flow channel 11 is discharged from the through cavity 61 on the valve cover 6 located on the side flow channel 12 through the adjusting flow channel two 42 and the adjusting flow channel one 41 in turn, and the other two-way function of the valve body 1 is opened; the valve stem 51 is continuously rotated by ninety degrees, the adjusting flow channel one 41 is connected to the main flow channel 11, and the adjusting flow channel two 42 faces the valve cover 6 located on the side flow channel 12, the fluid in the main flow channel 11 is discharged from the through cavity 61 on the valve cover 6 located on the main flow channel 11 through the adjusting flow channel one 41, and the fluid in the main flow channel 11 is discharged from the through cavity 61 on the valve cover 6 located on the side flow channel 12 through the adjusting flow channel one 41 and the adjusting flow channel two 42 in turn, the three-way function of the valve body 1 is opened, the valve body 1 realizes the adjustment and control of the fluid in any direction, thereby improving the convenience of the user using the reversing zero leakage three-way ball valve.

[0039] The implementation principle of the reversing zero-leakage three-way ball valve is that: the inner ring of the first sealing ring 31 abuts against the outer peripheral surface of the cover 2 to form a seal, and the outer ring of the first sealing ring 31 abuts against the inner wall of the side flow channel 12 to form a seal, so that the fluid in the side flow channel 12 is not easy to overflow from the connection between the cover 2 and the valve body 1; the inner ring of one of the second sealing rings 32 abuts against the outer peripheral surface of the valve cover 6 to form a seal, and the outer ring of the second sealing ring 32 abuts against the inner wall of the main flow channel 11 to form a seal, so that the fluid in the main flow channel 11 is not easy to overflow from the connection between the valve cover 6 and the valve body 1, and the fluid in the main flow channel 11 is stably discharged from the through cavity 61, and the inner ring of the other second sealing ring 32 abuts against the outer peripheral surface of the valve cover 6 to form a seal, and the outer ring of the second sealing ring 32 abuts against the inner wall of the side flow channel 12 to form a seal, so that the fluid in the side flow channel 12 is not easy to overflow from the connection between the valve cover 6 and the valve body 1, and the fluid in the side flow channel 12 is stably discharged from the through cavity 61, realizing zero leakage of the valve body 1 to the fluid and further improving the stability of the valve body 1 in transmitting the fluid; at the same time, when the user holds the butterfly handle 52 to drive the valve rod 51 to rotate, the adjusting flow channel one 41 is connected with the main flow channel 11, and the adjusting flow channel two 42 is directed towards the cover 2, the directional block 53 is directed towards the valve cover 6 located on the main flow channel 11, the fluid in the main flow channel 11 is discharged from the through cavity 61 on the valve cover 6 located on the main flow channel 11 through the adjusting flow channel one 41, and one kind of two-way function of the valve body 1 is opened; the valve rod 51 continues to rotate by 90 degrees, one end of the adjusting flow channel one 41 is directed towards the cover 2, the other end of the adjusting flow channel one 41 is directed towards the valve cover 6 located on the side flow channel 12, and the adjusting flow channel two 42 is directed towards the main flow channel 11, the fluid in the main flow channel 11 is sequentially discharged from the through cavity 61 on the valve cover 6 located on the side flow channel 12 through the adjusting flow channel two 42 and the adjusting flow channel one 41, and another two-way function of the valve body 1 is opened; the valve rod 51 continues to rotate by 90 degrees, the adjusting flow channel one 41 is connected with the main flow channel 11, and the adjusting flow channel two 42 is directed towards the valve cover 6 located on the side flow channel 12, the fluid in the main flow channel 11 is discharged from the through cavity 61 on the valve cover 6 located on the main flow channel 11 through the adjusting flow channel one 41, and the fluid in the main flow channel 11 is sequentially discharged from the through cavity 61 on the valve cover 6 located on the side flow channel 12 through the adjusting flow channel one 41 and the adjusting flow channel two 42, the three-way function of the valve body 1 is opened, the valve body 1 is adjusted and controlled in any flow direction of the fluid, and the convenience of the user in using the reversing zero-leakage three-way ball valve is improved.

[0040] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A reversing zero-leakage three-way ball valve, characterized in that: The valve body (1) includes a valve body (1), a plug (2), a sealing assembly (3), and at least two valve covers (6). The valve body (1) has a main flow channel (11) and a side flow channel (12) spaced apart. The length directions of the main flow channel (11) and the side flow channel (12) are perpendicular to each other. Both the main flow channel (11) and the side flow channel (12) penetrate the outer wall of the valve body (1), and the main flow channel (11) connects to the side flow channel (12). The end of the plug (2) is embedded in the inner wall of the side flow channel (12) and seals the side flow channel (12). The surface of the valve cover (6) has a through cavity (61) that penetrates the outer wall of the valve cover (6). One end of the valve cover (6) is embedded in the side flow channel (12) away from the inner wall of the plug (2). 1) Connecting the side flow channel (12), the other end of the valve cover (6) is embedded in the inner wall of the main flow channel (11), the through cavity (61) connects to the main flow channel (11), the sealing assembly (3) includes a sealing ring one (31) and at least two sealing rings two (32), the inner ring of the sealing ring one (31) is fitted on the end of the plug (2) to form a seal, the outer ring of the sealing ring one (31) abuts against the inner wall of the side flow channel (12) to form a seal, the sealing rings two (32) correspond one-to-one with the valve cover (6), the inner ring of the sealing rings two (32) is fitted on the end of the valve cover (6) to form a seal, the outer ring of one of the sealing rings two (32) abuts against the inner wall of the side flow channel (12) to form a seal, and the outer ring of the other sealing ring abuts against the inner wall of the main flow channel (11) to form a seal.

2. The zero-leakage three-way ball valve for reversing according to claim 1, characterized in that: It also includes a ball (4) and an actuator (5). The inner wall of the main flow channel (11) has a rotating cavity (13) for the ball (4) to rotate. The rotating cavity (13) is connected to the side flow channel (12). The actuator (5) includes a valve stem (51). The surface of the valve body (1) has an actuator cavity (15) for the valve stem (51) to rotate. The end of the valve stem (51) is connected to the ball (4). The axis of the valve stem (51) is perpendicular to the length direction of the main flow channel (11), and the axis of the valve stem (51) is perpendicular to the length direction of the side flow channel (12). The length directions are perpendicular to each other; the surface of the sphere (4) is provided with an adjustment channel one (41) and an adjustment channel two (42) spaced apart. The adjustment channel one (41) penetrates the outer wall of the sphere (4), and the adjustment channel two (42) connects to the adjustment channel one (41). The length direction of the adjustment channel two (42) is perpendicular to the length direction of the adjustment channel one (41). The length direction of the adjustment channel one (41) is perpendicular to the axis of the valve stem (51), and the length direction of the adjustment channel two (42) is perpendicular to the axis of the valve stem (51).

3. A zero-leakage three-way ball valve for reversing according to claim 2, characterized in that: The actuator (5) further includes a butterfly handle (52) and a directional block (53). The butterfly handle (52) is connected to the end of the valve stem (51) away from the ball (4). The directional block (53) is connected to the surface of the butterfly handle (52) facing the valve body (1). When the regulating channel two (42) faces the plug (2) and the regulating channel one (41) is connected to the main channel (11), the directional block (53) faces the valve cover (6) located on the main channel (11).

4. A zero-leakage three-way ball valve for reversing according to claim 2, characterized in that: The actuating component (5) further includes a sealing ring three (54), which is coaxially sleeved on the outer circumferential surface of the valve stem (51). The inner ring wall of the sealing ring three (54) abuts against the outer circumferential surface of the valve stem (51) to form a seal, and the outer ring wall of the sealing ring three (54) abuts against the inner wall of the actuating cavity (15) to form a seal.

5. A zero-leakage three-way ball valve for reversing according to claim 3, characterized in that: The actuator (5) also includes a screw (55), the end of which passes through a butterfly shank (52) and is threaded onto the valve stem (51) to form a connection.

6. A zero-leakage three-way ball valve for reversing according to claim 2, characterized in that: The valve body (1) is connected to a sealing assembly (7), which includes at least two valve seats (71). One valve seat (71) is connected at one end to a valve seat end located on the main channel (11), and the other end of the valve seat (71) abuts against the surface of the ball (4) to form a seal. The other valve seat (71) is connected at one end to the inner wall of the rotating cavity (13) away from the valve seat, and the other end of the valve seat (71) abuts against the surface of the ball (4) to form a seal.

7. A zero-leakage three-way ball valve for reversing according to claim 6, characterized in that: The clamping assembly (7) further includes at least two valve seats (72), one of which is connected at one end to the end of the plug (2) facing the rotating cavity (13), and the other end of the valve seat (72) abuts against the surface of the ball (4) to form a seal. The other valve seat (72) is connected at one end to the end of the valve cover (6) located on the side flow channel (12), and the other end of the valve seat (72) abuts against the surface of the ball (4) to form a seal.

8. A zero-leakage three-way ball valve for reversing according to claim 7, characterized in that: The end of the plug (2) is provided with a limiting cavity (21) for the end of the valve seat (72) to be inserted, and the end of the valve seat (72) abuts against the inner wall of the limiting cavity (21) to form a seal.

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