A two-way control valve for pipeline fluid

Abstract

The present invention relates to the technical field of valve structure, and in particular to a two-way control valve for pipeline fluid, comprising a valve body and a valve plate located inside the valve body, the valve plate being used to divide the interior of the valve body into two upper and lower independent chambers, and the two independent chambers are respectively communicated with two flange ends of the valve, a valve hole is provided on the valve plate, and the two independent chambers are communicated with each other through the valve hole; the valve closing operation is achieved by utilizing the pressure of the fluid without requiring workers to provide a large squeezing force for the valve core to complete the valve closing, and the valve of this structure can greatly reduce the difficulty of operation during operation, and because the fluid pressure is utilized to complete the closing operation, the valve has better sealing performance and is not prone to loosening and leakage, and the two-way fluid control can be more convenient to use and popularize.

Description

Technical Field

[0001] The invention relates to the technical field of valve structures, and in particular to a pipeline fluid bidirectional control valve. Background Art

[0002] In modern industry, civil construction and various engineering systems, fluid transmission and control systems play a vital role. Whether in water treatment, petrochemical, food processing or heating, ventilation and air conditioning (HVAC), accurate and reliable fluid control is the key to ensure safe and efficient operation of the system.

[0003] At present, the common fluid control valves on the market mainly include stop valves, ball valves, butterfly valves, etc. Most of them can only provide fluid control functions in a single direction, and when the valve is closed, workers are required to provide a large squeezing force for the valve plate to make the valve plate overcome the fluid pressure and close to limit the fluid delivery. Valves with this structure are prone to loosening of the valve plate and reduced sealing under the action of high pressure of the fluid for a long time. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a pipeline fluid two-way control valve, the specific technical solution adopted by the valve is: According to a first aspect of the present invention, there is provided a pipeline fluid bidirectional control valve, comprising a valve body and a valve plate located inside the valve body, the valve plate being used to separate the interior of the valve body into two upper and lower independent chambers, and the two independent chambers are respectively communicated with two flange ends of the valve, and a valve hole is provided on the valve plate, and the two independent chambers are communicated with each other through the valve hole; A movable frame is slidably inserted on the upper surface of the valve plate in a direction perpendicular to the valve hole. Two valve cores are arranged on the movable frame. The two valve cores are respectively located on both sides of the surface where the valve hole is located, and the two valve cores are used to block the valve hole.

[0005] Furthermore, the valve core rotates on the movable frame, and when the valve core is separated from the valve hole, the valve core tilts toward its corresponding flange end, and when the valve core blocks the valve hole, the valve core and the valve hole are in a surface contact state.

[0006] Furthermore, two support sleeves are provided on the back of the valve core, support columns are inserted in the two support sleeves, the support sleeves rotate on the support columns, the support columns are fixed on the movable frame, and a limit plate is fixed on the outer wall of the support column between the two support sleeves. The limit plate is inclined, and the limit plate and the valve core are connected by a first elastomer.

[0007] Furthermore, a clamping ring is arranged on the front of the valve core, an annular groove is opened on the end surface of the clamping ring, the cross section of the annular groove is arranged to be arc-shaped, a sealing ring is clamped in the annular groove, and the cross section of the sealing ring is circular.

[0008] Furthermore, an inclined movable channel is provided in the valve plate, a second opening is provided on the upper surface of the valve plate, a first opening is provided on the lower surface of the valve plate, both the first opening and the second opening are connected to the movable channel, a movable body is slidably arranged in the movable channel, a third opening is provided on the movable body, the third opening moves in the second opening, when the movable body moves and aligns the third opening with the first opening, the first opening, the third opening and the second opening are connected, when the third opening is misaligned with the first opening, the first opening and the second opening are isolated from each other.

[0009] Furthermore, a valve barrel is provided on the top of the valve body, a partition is fixed in the valve barrel, the top of the movable frame slides through the partition and extends into the valve barrel, a threaded rod is provided on the top of the movable frame, one end of the threaded rod is screwed into the movable frame, and a turntable is fixed on the other end of the threaded rod, the turntable is rotatably installed on the top of the valve barrel, a plurality of connecting columns are provided on the top of the turntable, and a valve wheel is provided on the top of the plurality of connecting columns.

[0010] Furthermore, the bottom of the connecting column passes through the turntable and is slidably connected to each other. A swivel is provided in the valve barrel. The connecting column is fixedly connected to the swivel. The top of the swivel is connected to the turntable through a slider. A spring is slidably provided at the bottom of the swivel. A first connecting rod is fixed to the bottom of the spring. The bottom of the first connecting rod slides through the partition and extends into the valve body. The first connecting rod and the movable body are rotatably connected through the second connecting rod.

[0011] Furthermore, an inner gear ring is fixed on the top of the valve barrel, and the length direction of the teeth on the inner wall of the inner gear ring is along the axis direction of the inner gear ring. Two tooth plates are meshed inside the inner gear ring, and both tooth plates are slidably installed on the valve wheel. The positions of the two tooth plates on the valve wheel are opposite, and the tooth plates and the valve wheel are connected by a second elastomer.

[0012] The beneficial effects of the present invention are: By utilizing the pressure of the fluid to close the valve, there is no need for workers to provide a large squeezing force to the valve core to complete the valve closing. The valve of this structure can greatly reduce the difficulty of operation during operation. Moreover, since the fluid pressure is utilized to complete the closing work, the sealing performance is better and it is not easy to cause loosening and leakage. The two-way fluid control can be more convenient to use and popularize. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention 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 described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 is a schematic diagram of a cross-sectional structure of a valve body in an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the valve plate and the valve core in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a valve plate in an embodiment of the present invention; Figure 5 is a schematic diagram of a cross-sectional structure of a valve plate in an embodiment of the present invention; Figure 6 is a schematic structural diagram of a valve core in an embodiment of the present invention; Figure 7 Schematic diagram of the valve barrel and its internal structure in an embodiment of the present invention.

[0015] Reference numerals: 1. Valve body; 2. Valve plate; 3. Valve hole; 4. Movable frame; 5. Valve core; 6. Support sleeve; 7. Support column; 8. Limit plate; 9. First elastic body; 10. Retaining ring; 11. Sealing ring; 12. Movable passage; 13. First opening; 14. Second opening; 15. Movable body; 16. Third opening; 17. Valve barrel; 18. Partition; 19. Threaded rod; 20. Turntable; 21. Connecting column; 22. Valve wheel; 23. Rotating ring; 24. Slider; 25. Spring; 26. First connecting rod; 27. Second connecting rod; 28. Internal gear ring; 29. ​​Gear plate; 30. Second elastic body. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 7 As shown, a pipeline fluid bidirectional control valve of the present invention comprises a valve body 1 and a valve plate 2 located inside the valve body 1, the valve plate 2 is used to separate the interior of the valve body 1 into two upper and lower independent chambers, and the two independent chambers are respectively connected to the two flange ends of the valve, and a valve hole 3 is opened on the valve plate 2, and the two independent chambers are connected to each other through the valve hole 3; A movable frame 4 is slidably inserted into the valve plate 2 in a direction perpendicular to the valve hole 3 , and two valve cores 5 are arranged on the movable frame 4 . The two valve cores 5 are respectively located on both sides of the surface where the valve hole 3 is located, and the two valve cores 5 are used to block the valve hole 3 .

[0020] In detail, the two independent chambers separated by the valve plate 2 inside the valve body 1 are respectively connected to the two valve pipes on the left and right sides of the valve, that is, the fluid in the external pipeline can flow into the other independent chamber through the flange end and the valve pipe at one end of the valve through an independent chamber and the valve hole 3, and then be output through the valve pipe and the flange end at the other end of the valve, and the structure allows the fluid to be transported in both directions in the valve, that is, the fluid can flow upward through the valve hole 3 or flow downward through the valve hole 3, the movable frame 4 can control the position of the two valve cores 5, the two valve cores 5 can respectively contact the upper and lower surfaces of the valve plate 2 and block the valve hole 3, when the fluid flows upward through the valve hole 3, the two valve cores 5 can be moved by lifting the movable frame 4. When the valve is closed, the spool 5 on the lower side is moved upward to seal the bottom of the valve hole 3, and the fluid pressure can be used to make the lower valve core 5 in close contact with the bottom of the valve hole 3. On the contrary, when the fluid flows downward through the valve hole 3, the movable frame 4 can be moved downward and the upper valve core 5 can be used to seal the top of the valve hole 3. The valve can be closed by the fluid pressure without the need for workers to provide a large squeezing force for the valve core 5 to complete the valve closing. The valve with this structure can greatly reduce the difficulty of operation during operation, and because the fluid pressure is used to complete the closing work, the sealing is better and it is not easy to cause loosening and leakage. The two-way fluid control can be more convenient to use and popularize.

[0021] Furthermore, the valve core 5 rotates on the movable frame 4 , and when the valve core 5 is separated from the valve hole 3 , the valve core 5 tilts toward its corresponding flange end, and when the valve core 5 blocks the valve hole 3 , the valve core 5 and the valve hole 3 are in surface contact.

[0022] In detail, the inclination of the valve core 5 can facilitate the diversion of the fluid, thereby improving the smoothness of the flow of the fluid in the valve and reducing the resistance to the fluid flow. The arrangement in which the valve core 5 can rotate on the movable frame 4 can enable the valve core 5 to switch between the two working states of diversion and closure.

[0023] Furthermore, two support sleeves 6 are provided on the back of the valve core 5, and support columns 7 are inserted in the two support sleeves 6. The support sleeves 6 rotate on the support columns 7, and the support columns 7 are fixed on the movable frame 4. A limiting plate 8 is fixed on the outer wall of the support column 7 between the two support sleeves 6. The limiting plate 8 is inclined, and the limiting plate 8 and the valve core 5 are connected through a first elastic body 9.

[0024] In detail, the support sleeve 6 and the support column 7 can provide support for the valve core 5, and the separation of the two support sleeves 6 can provide space for the limit plate 8 to be installed on the support column 7. The first elastomer 9 provides elastic tension to the valve core 5, and the limit plate 8 limits the first elastomer 9. Therefore, when the valve core 5 is separated from the valve hole 3, the valve core 5 is attached to the surface of the limit plate 8. At this time, the valve core 5 is tilted, and when the valve core 5 blocks the valve hole 3, the valve plate 2 pushes the valve core 5 to rotate to a horizontal state.

[0025] Furthermore, a clamping ring 10 is provided on the front of the valve core 5, and an annular groove is provided on the end surface of the clamping ring 10. The cross section of the annular groove is set to be arc-shaped. A sealing ring 11 is clamped in the annular groove, and the cross section of the sealing ring 11 is circular.

[0026] In detail, by setting the retaining ring 10 and the sealing ring 11, the valve core 5 and the valve hole 3 can be easily sealed, thereby improving the sealing of the fluid control, the retaining ring 10 can provide an installation position for the sealing ring 11, and the arc-shaped setting of the annular groove can help the retaining ring 10 to clamp the sealing ring 11 in the annular groove. By setting the cross-section of the sealing ring 11 to a circle, the valve core 5 can be in contact with the valve plate 2, and when the valve plate 2 pushes the valve core 5 to rotate on the movable frame 4 in the opposite direction through the sealing ring 11 and the retaining ring 10, the local sealing ring 11 in contact with the valve plate 2 is allowed to perform a small amount of tumbling movement in the annular groove, thereby smoothly rotating the valve core 5 on the movable frame 4 and avoiding direct friction between the valve core 5 and the valve plate 2.

[0027] Furthermore, an inclined movable channel 12 is provided in the valve plate 2, a second opening 14 is provided on the upper surface of the valve plate 2, a first opening 13 is provided on the lower surface of the valve plate 2, both the first opening 13 and the second opening 14 are connected to the movable channel 12, a movable body 15 is slidably arranged in the movable channel 12, a third opening 16 is provided on the movable body 15, and the third opening 16 moves in the second opening 14, when the movable body 15 moves and aligns the third opening 16 with the first opening 13, the first opening 13, the third opening 16 and the second opening 14 are connected, and when the third opening 16 is misaligned with the first opening 13, the first opening 13 and the second opening 14 are isolated from each other.

[0028] In detail, in the natural state, the third port 16 is in a misaligned state with the first port 13. At this time, the two independent spaces on the upper and lower sides of the valve plate 2 will not be connected at the first port 13 and the second port 14. When the valve is opened, since the fluid provides a large squeezing force on the valve core 5, it will be difficult for the worker to directly open the valve core 5. At this time, the movable body 15 can be pushed to slide in the movable channel 12. Since the force of the fluid on the movable body 15 will not cause a large interference to the moving direction of the movable body 15, the movement of the movable body 15 is relatively simple. When the third port 16 on the movable body 15 moves to the position of the first port 13, the two independent spaces on the upper and lower sides of the valve plate 2 can be connected through the first port 13, the third port 16 and the second port 14, and the fluid can flow in the two independent spaces, thereby realizing the pressure relief work. At this time, it is relatively simple for the worker to open the valve core 5, and the fluid will flow through the valve hole 3. After the valve is normally opened, the movable body 15 can be reset in the movable channel 12, so that the first port 13 and the second port 14 are isolated.

[0029] Furthermore, a valve barrel 17 is provided on the top of the valve body 1, and a partition 18 is fixed in the valve barrel 17. The top of the movable frame 4 slides through the partition 18 and extends into the valve barrel 17. A threaded rod 19 is provided on the top of the movable frame 4. One end of the threaded rod 19 is screwed into the movable frame 4, and a turntable 20 is fixed on the other end of the threaded rod 19. The turntable 20 is rotatably installed on the top of the valve barrel 17. A plurality of connecting columns 21 are provided on the top of the turntable 20, and a valve wheel 22 is provided on the top of the plurality of connecting columns 21.

[0030] In detail, workers can drive the turntable 20 and the threaded rod 19 to rotate through the valve wheel 22 and multiple connecting columns 21. Since the threaded rod 19 is threadedly connected to the movable frame 4, the threaded rod 19 can push the movable frame 4 to move up and down, thereby adjusting the positions of the two valve cores 5. The partition 18 can provide guidance for the movable frame 4 and separate the valve barrel 17 from the valve body 1.

[0031] Furthermore, the bottom of the connecting column 21 passes through the turntable 20 and is slidably connected to each other. A swivel 23 is provided in the valve barrel 17. The connecting column 21 is fixedly connected to the swivel 23. The top of the swivel 23 is connected to the turntable 20 via a slider 24. A spring 25 is slidably provided at the bottom of the swivel 23. A first connecting rod 26 is fixed at the bottom of the spring 25. The bottom of the first connecting rod 26 slides through the partition 18 and extends into the valve body 1. The first connecting rod 26 is rotatably connected to the movable body 15 via a second connecting rod 27.

[0032] In detail, one end of the second connecting rod 27 is rotatably connected to the first connecting rod 26, and the other end of the second connecting rod 27 passes through the second opening 14 and is rotatably connected to the movable body 15. In the natural state, due to the pulling force of the slider 24, the swivel 23 is located on the upper side of the inside of the valve barrel 17, and the third opening 16 on the movable body 15 is in a misaligned state with the first opening 13. When the valve needs to be opened, the worker can directly press the valve wheel 22 downward, and the valve wheel 22 can push the swivel 23 downward through the connecting column 21. The swivel 23 pushes the movable body 15 to move in the movable channel 12 through the spring 25, the first connecting rod 26 and the second connecting rod 27, so that the third opening 16 is aligned with the first opening 13. At this time, the slider 24 undergoes elastic deformation. When the valve wheel 22 rotates, the turntable 20 and the swivel 23 rotate synchronously, and the spring 25 is restricted by the first connecting rod 26 and slides relative to the swivel 23.

[0033] Furthermore, an inner gear ring 28 is fixed on the top of the valve barrel 17, and the length direction of the teeth on the inner wall of the inner gear ring 28 is along the axial direction of the inner gear ring 28. Two tooth plates 29 are meshed inside the inner gear ring 28, and the two tooth plates 29 are both slidably mounted on the valve wheel 22, and the positions of the two tooth plates 29 on the valve wheel 22 are opposite, and the tooth plates 29 and the valve wheel 22 are connected by a second elastomer 30.

[0034] In detail, the second elastic body 30 can provide an elastic thrust for the tooth plate 29, so that the tooth plate 29 and the inner tooth ring 28 fit closely with each other, and the inner tooth ring 28 and the tooth plate 29 provide a locking effect on the valve wheel 22. At this time, the valve wheel 22 cannot rotate freely. When the position of the valve core 5 needs to be adjusted, the worker can press the two tooth plates 29 on the valve wheel 22 to separate the tooth plate 29 from the inner tooth ring 28. At this time, the valve wheel 22 can rotate freely. Of course, since the valve core 5 needs to control the movement of the movable body 15 first when opening, the valve wheel 22 can be pressed downward first to align the third port 16 with the first port 13. At this time, the tooth plate 29 can slide on the inner tooth ring 28, and the tooth plate 29 and the inner tooth ring 28 remain in a locked state.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pipeline fluid bidirectional control valve, characterized in that: The valve body (1) comprises a valve plate (2) located inside the valve body (1), the valve plate (2) being used to separate the interior of the valve body (1) into two independent chambers, an upper chamber and an lower chamber, and the two independent chambers are respectively connected to two flange ends of the valve, and the valve plate (2) is provided with a valve hole (3), and the two independent chambers are connected to each other through the valve hole (3); A movable frame (4) is slidably inserted along the upper side of the valve plate (2) in a direction perpendicular to the valve hole (3), and two valve cores (5) are arranged on the movable frame (4). The two valve cores (5) are respectively located on both sides of the surface where the valve hole (3) is located, and the two valve cores (5) are used to block the valve hole (3).

2. A pipeline fluid bidirectional control valve according to claim 1, characterized in that: The valve core (5) rotates on the movable frame (4); when the valve core (5) is separated from the valve hole (3), the valve core (5) tilts toward its corresponding flange end; when the valve core (5) blocks the valve hole (3), the valve core (5) and the valve hole (3) are in surface contact.

3. A pipeline fluid bidirectional control valve according to claim 2, characterized in that: Two support sleeves (6) are arranged on the back of the valve core (5), support columns (7) are inserted into the two support sleeves (6), the support sleeves (6) rotate on the support columns (7), the support columns (7) are fixed on the movable frame (4), a limit plate (8) is fixed on the outer wall of the support column (7) between the two support sleeves (6), the limit plate (8) is inclined, and the limit plate (8) and the valve core (5) are connected via a first elastic body (9).

4. A pipeline fluid bidirectional control valve according to claim 3, characterized in that: A clamping ring (10) is provided on the front face of the valve core (5), an annular groove is provided on the end face of the clamping ring (10), the cross section of the annular groove is arranged to be arc-shaped, a sealing ring (11) is clamped in the annular groove, and the cross section of the sealing ring (11) is circular.

5. A pipeline fluid bidirectional control valve according to claim 4, characterized in that: The valve plate (2) is provided with an inclined movable channel (12), the upper surface of the valve plate (2) is provided with a second opening (14), the lower surface of the valve plate (2) is provided with a first opening (13), the first opening (13) and the second opening (14) are both connected to the movable channel (12), a movable body (15) is slidably arranged in the movable channel (12), a third opening (16) is provided on the movable body (15), the third opening (16) moves in the second opening (14), when the movable body (15) moves and aligns the third opening (16) with the first opening (13), the first opening (13), the third opening (16) and the second opening (14) are connected, when the third opening (16) is misaligned with the first opening (13), the first opening (13) and the second opening (14) are isolated from each other.

6. A pipeline fluid bidirectional control valve according to claim 5, characterized in that: A valve barrel (17) is arranged on the top of the valve body (1), a partition (18) is fixed inside the valve barrel (17), the top of the movable frame (4) slides through the partition (18) and extends into the valve barrel (17), a threaded rod (19) is arranged on the top of the movable frame (4), one end of the threaded rod (19) is screwed into the movable frame (4), a turntable (20) is fixed on the other end of the threaded rod (19), the turntable (20) is rotatably mounted on the top of the valve barrel (17), a plurality of connecting columns (21) are arranged on the top of the plurality of connecting columns (21), and a valve wheel (22) is arranged on the top of the plurality of connecting columns (21).

7. A pipeline fluid bidirectional control valve according to claim 6, characterized in that: The bottom of the connecting column (21) passes through the rotating disk (20) and is slidably connected to each other. A rotating ring (23) is arranged in the valve barrel (17). The connecting column (21) is fixedly connected to the rotating ring (23). The top of the rotating ring (23) is connected to the rotating disk (20) via a slider (24). A spring (25) is slidably arranged at the bottom of the rotating ring (23). A first connecting rod (26) is fixed at the bottom of the spring (25). The bottom of the first connecting rod (26) slides through the partition (18) and extends into the valve body (1). The first connecting rod (26) is rotatably connected to the movable body (15) via a second connecting rod (27).

8. A pipeline fluid bidirectional control valve according to claim 7, characterized in that: An inner gear ring (28) is fixed on the top of the valve barrel (17), the length direction of the teeth on the inner wall of the inner gear ring (28) is along the axial direction of the inner gear ring (28), two tooth plates (29) are meshed inside the inner gear ring (28), the two tooth plates (29) are slidably mounted on the valve wheel (22), and the two tooth plates (29) are positioned opposite to each other on the valve wheel (22), and the tooth plates (29) and the valve wheel (22) are connected via a second elastic body (30).

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