CN213839701U - Combined valve - Google Patents

Abstract

The utility model relates to the technical field of valves, and discloses a composite valve, which comprises a main valve body, a ball body arranged in the main valve body, a valve rod connected with the ball body for controlling the rotation of the ball body and a check valve connected with the main valve body, the check valve is provided with a first valve core matched with the first water passing port and a second valve core matched with the second water passing port, the first valve core and the second valve core can be driven by a movable part arranged between the first valve core and the second valve core, the first valve core can have a state of being contacted with a first water outlet, the second valve core can have a state of being contacted with a second water outlet, the first valve core and the second valve core are linked, wherein, when the first valve core is contacted with the first water passing port, the second valve core is separated from the second water passing port, when the second valve core is contacted with the second water passing port, the first valve core is separated from the first water passing port. The utility model discloses the check valve can realize the function of fluid switching-over non return.

Description

Combined valve

Technical Field

The utility model relates to a combined type valve.

Background

The existing meter front control valve needs to control the opening and closing of a pipeline and also needs to prevent fluid backflow, the requirement can be met only by simultaneously using 2 valves, the cost is increased by installing a plurality of valves, and meanwhile, a plurality of mechanical contact points are increased to easily cause water leakage. In some applications, the fluid in the conduit may require different flow directions at different times and also prevent backflow when the fluid is flowing in both directions.

Disclosure of Invention

The utility model aims to solve the technical problem that a function that has ball valve and check valve concurrently is provided to combined type valve that sealing performance is good, the utility model aims to solve the technical problem still including providing a two-way variable non return function's combined type valve.

In order to achieve the above object, the utility model provides a composite valve, which comprises a main valve body, a ball body arranged in the main valve body, a valve rod connected with the ball body for controlling the rotation of the ball body and a check valve connected with the main valve body, wherein the check valve is provided with a first valve core matched with the first water passing port and a second valve core matched with the second water passing port, the first valve core and the second valve core can be driven by a movable part arranged between the first valve core and the second valve core, the first valve core can have a state of being contacted with a first water outlet, the second valve core can have a state of being contacted with a second water outlet, the first valve core and the second valve core are linked, wherein, when the first valve core is contacted with the first water passing port, the second valve core is separated from the second water passing port, when the second valve core is contacted with the second water passing port, the first valve core is separated from the first water passing port.

Furthermore, the movable part is provided with a fixed part fixed with the rotating shaft, the outer contour of the movable part is arc-shaped, one end of the rotating shaft is arranged in a first groove in the inner wall of the check valve body, the other end of the rotating shaft is connected with the rotating handle through a hole in the inner wall of the check valve body, the fixed part deviates from the center of the movable part, and the farthest distance between the fixed part and the outer contour of the movable part can enable the first valve core and the first water passing port or the second valve core and the second water passing port to be in close contact.

Furthermore, the movable part is an eccentric wheel, the fixed part of the eccentric wheel deviates from the circle center, and the two sides of the base of the first valve core and the second valve core are connected with a second groove on the inner wall of the check valve.

Furthermore, the first valve core and the second valve core are provided with a third groove matched with the outer contour of the eccentric wheel, the eccentric wheel is provided with a fourth groove along the outer contour, the third groove and the fourth groove are movably connected through a buckle, and the buckle can move along the fourth groove.

Further, the hole is provided with a sealing ring.

Furthermore, a first sealing ring and a second sealing ring are arranged between the ball body and the main valve body.

Further, the utility model discloses a combined type valve, main valve body disk seat are made by the PTFE material, the check valve disk seat is made by rubber materials.

The utility model has the advantages that:

the utility model discloses a combined type valve possesses the function of ball valve and check valve, once satisfies the functional requirement of closing the medium fast on the pipeline and preventing the refluence, combines ball valve and check valve organic together, has avoided many places mechanical connection to cause the hidden danger that the leakage point exists, and the main valve body and check valve multiple seal, the effectual phenomenon of having controlled the interior water resource water clock of passageway, also have gone up the dual fail-safe for important equipment such as water gauge on the pipeline, pump simultaneously.

The utility model discloses a check valve, including two spools, eccentric wheel, water inlet and delivery port, two valve cores of check valve can be for the water inlet and the delivery port of each other under the rotatory promotion of eccentric wheel, when the furthest apart from point and the case contact of eccentric wheel center and outline, case and water inlet in close contact with, another case then breaks away from the contact with the delivery port, the check valve has realized the function that the unidirectional flow prevented the backward flow, at this moment, when the eccentric wheel is rotatory 180, former delivery port becomes the water inlet, another case and water inlet in close contact with, the check valve that can supply the opposite direction to flow has been formed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the bi-directional check valve of fig. 1.

Description of reference numerals: 1. a main valve body; 2. a first seal ring; 3. a sphere; 4. a second seal ring; 5. a gasket; 6. a check valve; 7. a valve cover; 8. a loose joint nut; 9. a retainer ring; 10. an O-shaped ring; 11. an anti-friction pad; 12. a valve stem; 13. a main valve body valve seat; 14. a handle; 15. a check valve seat; 16. a first water passing opening; 17. a second water passing opening; 18. a conical surface; 19. a spring; 20. a telescopic rod; 21. a substrate; 22. a movable portion; 23. a rotating shaft; 24. a fixed part; 25. an aperture; 26. a first groove; 27. a second groove; 28. a third groove; 29. a fourth groove; 30. a first valve spool; 31. a second valve core; 32. an elastic film.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, the composite valve of the present invention includes a main valve body 1, a ball 3 disposed in the main valve body 1, a valve rod 12 connected to the ball 3 for controlling the rotation of the ball 3, and a handle 14 connected to the valve rod 12. The valve rod 12 and the ball 3 can be connected in a nesting mode, and the valve rod 12 and the handle 14 are connected in a nesting mode. The main valve body 1 is connected with the check valve 6, the joint of the check valve 6 and the main valve body 1 is provided with a gasket 5 and an O-shaped ring 10, and an anti-abrasion pad 11 and the O-shaped ring 10 are arranged between the valve rod 12 and the main valve body 1. Ball valve and check valve combine organically, have avoided many places mechanical connection to cause the hidden danger that the leakage point exists, are equipped with antifriction pad 11 between valve rod 12 and the main valve body 1 and can reduce wear, reduce the probability that takes place to leak because of wearing and tearing, still are equipped with O type circle 10 between valve rod 12 and the main valve body 1, and check valve 6 is equipped with gasket 5 and O type circle 10 with the connector department of the main valve body 1, can reduce wear and prevent the emergence of leaking. In the present embodiment, referring to fig. 2, the check valve 6 has a first valve core 30 and a second valve core 31 respectively matched with the first water passing port 16 and the second water passing port 17, the first valve core 30 and the second valve core 31 include a conical surface 18 and a base 21, an elastic rod or a telescopic rod 20 fixed between the conical surface 18 and the base 21, and a spring 19 sleeved outside the elastic rod or the telescopic rod 20, and an elastic membrane 32 may be further provided outside the spring 19, and the elastic membrane 32 isolates the fluid from contacting the spring 19. A movable part 22 is arranged between the first valve core 30 and the second valve core 31, the movable part 22 has a closed arc-shaped outer contour, such as a circle or an ellipse or other shapes, the movable part 22 is connected with the base 21 of the first valve core 30 and the second valve core 31, the movable part 22 is fixed with a rotating shaft 23, a fixed part 24 of the movable part 22 and the rotating shaft 23 is deviated from the center of the movable part 22, one end of the rotating shaft 23 is connected with a first groove 26 on the inner wall of the check valve 6, and the other end of the rotating shaft 23 is connected with an external handle through a hole 25 on the inner wall of the check valve 6. The farthest distance between the fixed part 24 and the outer contour of the movable part 22 can make the first valve core 30 and the first water passing opening 16 or the second valve core 31 and the second water passing opening 17 form close contact. When the ball valve is used, the movable part 22 is rotated by rotating the handle, the first valve core 30 is pushed to be in close contact with the first water passing port 16, at the moment, when the ball valve is opened, the fluid pressure in the pipeline enables the conical surface 18 to be subjected to forward pressure, the spring 19 is compressed, the conical surface 18 moves towards the base 21, the flow channel is opened, the fluid flows out smoothly, and when the fluid flows backwards, the fluid pushes the base 21 to close the flow channel, so that one-way flow is realized. When the flow direction of the unidirectional flow of the fluid needs to be adjusted, the handle of the check valve is controlled to rotate 180 degrees, the water inlet and the water outlet are interchanged, the second valve core 31 is tightly contacted with the second water passing opening 17, when the conical surface 18 of the second valve core is subjected to forward pressure by the fluid pressure in the pipeline, the spring 19 is compressed, the conical surface 18 of the second valve core moves towards the substrate 21, the flow channel is opened, the fluid flows out smoothly, and the unidirectional flow in the opposite direction is realized.

In the above embodiment, the first sealing ring 2 and the second sealing ring 4 are arranged between the ball 3 and the main valve body 1, the main valve body valve seat 13 can be made of PTFE material, the check valve seat 15 can be made of rubber material, the main valve body valve seat 13 and the check valve seat 15 form two very reliable seals, so as to prevent water leakage and the ball valve and the check valve play a double-insurance role for the water meter and the pump on the pipeline.

In the above embodiment, referring to fig. 2, the movable portion 22 is an eccentric, the fixed portion 24 of the eccentric deviates from the center of the circle, the two sides of the base 21 of the first valve core 30 and the second valve core 31 are connected with the second groove 27 on the inner wall of the check valve 6, this structure can prevent the first valve core 30 and the second valve core 31 from shifting during the movement, the base 21 of the first valve core 30 and the second valve core 31 has the third groove 28 matching with the outer contour of the eccentric, the eccentric is provided with the fourth groove 29 along the outer contour, the third groove 28 and the fourth groove 29 are movably connected by a buckle, the buckle can move along the fourth groove, in this embodiment, the eccentric can drive the first valve core 30 and the second valve core 31 to move along the axis of the check valve 6 without shifting.

In the above embodiment, a seal ring is provided between the hole 25 and the rotary shaft 23 to prevent water leakage.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a combined type valve, includes the main valve body, establishes the spheroid in the main valve body and is connected the valve rod that is used for controlling the spheroid rotation with the spheroid, characterized by: the check valve is provided with a first valve core matched with the first water passing port and a second valve core matched with the second water passing port, the first valve core and the second valve core can be driven by a movable part arranged between the first valve core and the second valve core, the first valve core can be in a state of being contacted with the first water passing port, the second valve core can be in a state of being contacted with the second water passing port, and the first valve core and the second valve core are linked, wherein when the first valve core is contacted with the first water passing port, the second valve core is separated from the second water passing port, and when the second valve core is contacted with the second water passing port, the first valve core is separated from the first water passing port.

2. A compound valve as defined in claim 1, wherein: the movable part is provided with a fixed part fixed with the rotating shaft, the outer contour of the movable part is arc-shaped, one end of the rotating shaft is arranged in a first groove in the inner wall of the check valve body, the other end of the rotating shaft is connected with the rotating handle through a hole in the inner wall of the check valve body, the fixed part deviates from the center of the movable part, and the farthest distance between the fixed part and the outer contour of the movable part can enable the first valve core and the first water passing port or the second valve core and the second water passing port to be in close contact.

3. A compound valve as defined in claim 2, wherein: the movable part is an eccentric wheel, the fixed part of the eccentric wheel deviates from the circle center, and the two sides of the base of the first valve core and the second valve core are connected with the second groove on the inner wall of the check valve.

4. A compound valve as defined in claim 3, wherein: the first valve core and the second valve core are provided with third grooves matched with the outer contour of the eccentric wheel on the base, the eccentric wheel is provided with fourth grooves along the outer contour, the third grooves and the fourth grooves are movably connected through buckles, and the buckles can move along the fourth grooves.

5. A compound valve as claimed in claim 2, 3 or 4, wherein: the hole is provided with a sealing ring.

6. A compound valve as claimed in any one of claims 1 to 4, wherein: a first sealing ring and a second sealing ring are arranged between the ball body and the main valve body.

7. A compound valve as claimed in any one of claims 1 to 4, wherein: the main valve body seat is made of PTFE material, and the check valve seat is made of rubber material.

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