CN221257757U - Four-way check valve - Google Patents

Abstract

The utility model discloses a four-way check valve which comprises a valve seat, wherein a first inflow channel, a second inflow channel, a first outflow channel and a second outflow channel are arranged on the valve seat, the first inflow channel and the second inflow channel, the first outflow channel and the second outflow channel are respectively arranged coaxially, annular protrusions are arranged in the first inflow channel and the second inflow channel, movable check pieces are arranged on the annular protrusions, a ball body is rotatably arranged in the center of the valve seat, an operating rod is arranged on the ball body, one end of the operating rod penetrates through the valve seat and is provided with a hand wheel, and a through hole with an L-shaped structure is formed in the ball body.

Description

Four-way check valve

Technical Field

The utility model discloses a four-way check valve, and belongs to the technical field of valves.

Background

The check valve is a valve with a circular valve clack and used for blocking the backflow of a medium by the action of the self weight and the pressure of the medium, and belongs to automatic valves, which are also called check valves, one-way valves, backflow valves or isolation valves. Most of the existing check valves can only be applied to flow control of a single fluid, and when flow control of mixing two fluids is required, the corresponding use requirements cannot be met.

Disclosure of utility model

The utility model aims to solve the problems in the prior art and provides a four-way check valve.

The four-way check valve comprises a valve seat, wherein a first inflow channel, a second inflow channel, a first outflow channel and a second outflow channel are formed in the valve seat, the first inflow channel, the second inflow channel, the first outflow channel and the second outflow channel are respectively arranged coaxially, annular protrusions are arranged in the first inflow channel and the second inflow channel, movable check pieces are arranged on the annular protrusions, a ball body is rotatably arranged in the center of the valve seat, an operating rod is mounted on the ball body, one end of the operating rod penetrates through the valve seat and is provided with a hand wheel, a circulation hole with an L-shaped structure is formed in the ball body, and a first movable sealing piece and a second movable sealing piece which are in abutting sealing with the ball body are respectively arranged in the first inflow channel, the second inflow channel, the first outflow channel and the second outflow channel.

Preferably, the movable check piece comprises a guide cover, a first limit bolt, a first spring and a sealing disc, wherein the guide cover and the sealing disc are respectively positioned at two sides of the annular protrusion, one end of the first limit bolt penetrates through the guide cover and then is in threaded connection with the sealing disc, the first spring is sleeved on the outer side of the first limit bolt, two ends of the first spring are respectively abutted against the first limit bolt and the guide cover, and a plurality of guide holes distributed in array are formed in the circumferential side wall of the guide cover.

Preferably, the air guide sleeve is in a truncated cone-shaped structure, and the sealing disc is provided with a hexagonal groove.

Preferably, the first movable sealing element comprises a second limit bolt, a first movable sleeve and a second spring, a flange is arranged in the middle of the first movable sleeve, one end of the second limit bolt penetrates through the flange and then is in threaded connection with the valve seat, and the second spring is sleeved on the second limit bolt and applies an acting force against the ball body to the first movable sleeve.

Preferably, the second movable sealing element comprises a third limit bolt, a second movable sleeve and a third spring, the second movable sleeve is of a convex sleeve structure, one end of the third limit bolt penetrates through the second movable sleeve and is in threaded connection with the valve seat, and the third spring is sleeved on the third limit bolt and applies acting force against the ball body to the second movable sleeve.

Preferably, a T-shaped groove is arranged on the sphere, a boss which is in sliding fit with the T-shaped groove is arranged at one end of the operating lever, and an L-shaped identification groove is arranged at the other end of the operating lever.

Compared with the prior art, the utility model has the beneficial effects that:

Through setting up movable check piece, spheroid, first movable seal piece and second movable seal piece for the flow direction of fluid can also reach the effect that prevents the fluid check under the adjustable circumstances, can satisfy the operation needs of two kinds of fluid circulation control.

Drawings

FIG. 1 is a schematic view of a four-way check valve according to the present utility model;

FIG. 2 is a cross-sectional view of a four-way check valve of the present utility model;

FIG. 3 is a schematic view of the movable check member of the present utility model;

FIG. 4 is a schematic view of the structure of the ball, the first movable seal and the second movable seal according to the present utility model;

FIG. 5 is a schematic view of the structure of the sphere according to the present utility model;

reference numerals: 1. a first inflow channel; 2. a valve seat; 3. a first outflow channel; 4. a second inflow channel; 5. a joystick; 6. a marking groove; 7. a hand wheel; 8. a second outflow channel; 9. a second movable seal; 10. a movable check member; 11. a first movable seal; 12. a sphere; 13. a guide cover; 14. a first limit bolt; 15. a first spring; 16. a deflector aperture; 17. a sealing plate; 18. a hexagonal groove; 19. a flange; 20. a first movable sleeve; 21. the second limit bolt; 22. a third spring; 23. a second movable sleeve; 24. a second spring; 25. the third limit bolt; 26. a T-shaped groove; 27. a flow hole; 28. the ring is convex.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, a four-way check valve comprises a valve seat 2, wherein a first inflow channel 1, a second inflow channel 4, a first outflow channel 3 and a second outflow channel 8 are arranged on the valve seat 2, the first inflow channel 1 and the second inflow channel 4, the first outflow channel 3 and the second outflow channel 8 are respectively arranged coaxially, annular protrusions 28 are respectively arranged in the first inflow channel 1 and the second inflow channel 4, movable check pieces 10 are arranged on the annular protrusions 28, a ball 12 is rotatably arranged at the center of the valve seat 2, an operating rod 5 is arranged on the ball 12, one end of the operating rod 5 penetrates through the valve seat 2 and is provided with a hand wheel 7, a circulation hole 27 with an L-shaped structure is arranged in the ball 12, and a first movable sealing piece 11 and a second movable sealing piece 9 which are in interference sealing with the ball 12 are respectively arranged in the first inflow channel 1, the second inflow channel 4, the first outflow channel 3 and the second outflow channel 8.

The movable check member 10 comprises a guide cover 13, a first limit bolt 14, a first spring 15 and a sealing disc 17, wherein the guide cover 13 and the sealing disc 17 are respectively positioned at two sides of a ring boss 28, one end of the first limit bolt 14 passes through the guide cover 13 and is in threaded connection with the sealing disc 17, the first spring 15 is sleeved on the outer side of the first limit bolt 14, two ends of the first spring are respectively abutted against the first limit bolt 14 and the guide cover 13, a plurality of guide holes 16 distributed in an array are arranged on the circumferential side wall of the guide cover 13, fluid in the first inflow channel 1 can enter the inner side of the guide cover 13 along the guide holes 16, when the fluid has certain pressure, the sealing disc 17 can drive the first limit bolt 14 to compress the first spring 15 by overcoming the elasticity of the first spring 15, so that a gap is formed between the sealing disc 17 and the ring boss 28, the fluid can smoothly pass through, the guide holes 16 are formed in a circular truncated cone-shaped structure, the guide holes 18 are formed in the guide cover 13, and the sealing disc 17 is provided with a hexagonal groove 18, and the first limit bolt 14 can be conveniently detached and assembled and disassembled.

The first movable sealing element 11 comprises a second limit bolt 21, a first movable sleeve 20 and a second spring 24, wherein the middle part of the first movable sleeve 20 is provided with a flange 19, one end of the second limit bolt 21 passes through the flange 19 and is in threaded connection with the valve seat 2, the second spring 24 is sleeved on the second limit bolt 21 and applies an acting force against the ball 12 to the first movable sleeve 20, the first movable sleeve 20 can slide in the first inflow channel 1 or the second inflow channel 4, when the ball 12 rotates, the acting force applied by the ball 12 to the first movable sleeve 20 can enable the first movable sleeve 20 to slide and compress the second spring 24, and the second spring 24 can apply a reaction force to the first movable sleeve 20, so that after the ball 12 rotates in place, one end of the first movable sleeve 20 can be in abutting sealing with the ball 12.

The second movable sealing member 9 comprises a third limit bolt 25, a second movable sleeve 23 and a third spring 22, the second movable sleeve 23 is of a convex sleeve structure, one end of the third limit bolt 25 passes through the second movable sleeve 23 and is in threaded connection with the valve seat 2, the third spring 22 is sleeved on the third limit bolt 25 and applies an acting force against the ball 12 to the second movable sleeve 23, when the ball 12 rotates, the ball 12 applies an acting force against the second movable sleeve 23, the second movable sleeve 23 can slide along the first outflow channel 3 or the second outflow channel 8 and compress the third spring 22, the third spring 22 can apply a reaction force against the second movable sleeve 23, and after the ball 12 rotates in place, one end of the second movable sleeve 23 and the ball 12 can realize the abutting sealing

Be provided with T-shaped groove 26 on the spheroid 12, the one end of control lever 5 has with T-shaped groove 26 sliding fit's boss, control lever 5 passes through T-shaped groove 26 and boss cooperation with spheroid 12, can make things convenient for the equipment dismantlement of both, and have L-shaped structure's sign groove 6 on the other end of control lever 5, the turning of sign groove 6 corresponds with circulation hole 27, can let the operator know the rotation position of circulation hole 27 clearly to the circulation state of fluid in convenient control first inflow channel 1, second inflow channel 4, first outflow channel 3 and the second outflow channel 8, thereby simplified the operation.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a four-way check valve, includes disk seat (2), its characterized in that, have first inflow passageway (1), second inflow passageway (4), first outflow passageway (3) and second outflow passageway (8) on disk seat (2), first inflow passageway (1) and second inflow passageway (4), first outflow passageway (3) and second outflow passageway (8) are according to coaxial setting respectively, all be provided with in first inflow passageway (1) and second inflow passageway (4) and encircle protruding (28), be provided with movable check piece (10) on the protruding (28) of ring, the central rotation of disk seat (2) is provided with spheroid (12), install lever (5) on spheroid (12), the one end of lever (5) runs through disk seat (2) and is provided with hand wheel (7), be provided with in spheroid (12) and be L shape structure's circulation hole (27), be provided with in second inflow passageway (1), second inflow passageway (4), first outflow passageway (3) and second outflow passageway (8) respectively and contradict with second movable seal (11) in second inflow passageway (8).

2. The four-way check valve according to claim 1, wherein the movable check member (10) comprises a guide cover (13), a first limit bolt (14), a first spring (15) and a sealing disc (17), the guide cover (13) and the sealing disc (17) are respectively located at two sides of the annular protrusion (28), one end of the first limit bolt (14) penetrates through the guide cover (13) and then is in threaded connection with the sealing disc (17), the first spring (15) is sleeved on the outer side of the first limit bolt (14), two ends of the first spring are respectively abutted against the first limit bolt (14) and the guide cover (13), and a plurality of guide holes (16) distributed in an array are formed in the circumferential side wall of the guide cover (13).

3. A four-way check valve according to claim 2, characterized in that the dome (13) has a truncated cone-shaped structure, and the sealing disc (17) is provided with a hexagonal groove (18).

4. The four-way check valve according to claim 1, wherein the first movable sealing member (11) comprises a second limit bolt (21), a first movable sleeve (20) and a second spring (24), a flange (19) is arranged in the middle of the first movable sleeve (20), one end of the second limit bolt (21) penetrates through the flange (19) and then is in threaded connection with the valve seat (2), and the second spring (24) is sleeved on the second limit bolt (21) and applies a force against the ball body (12) to the first movable sleeve (20).

5. The four-way check valve according to claim 1, wherein the second movable sealing member (9) comprises a third limit bolt (25), a second movable sleeve (23) and a third spring (22), the second movable sleeve (23) is of a convex sleeve structure, one end of the third limit bolt (25) penetrates through the second movable sleeve (23) and then is in threaded connection with the valve seat (2), and the third spring (22) is sleeved on the third limit bolt (25) and applies a force against the ball body (12) to the second movable sleeve (23).

6. A four-way check valve according to claim 1, characterized in that the ball (12) is provided with a T-shaped groove (26), one end of the lever (5) is provided with a boss which is in sliding fit with the T-shaped groove (26), and the other end of the lever (5) is provided with an identification groove (6) with an L-shaped structure.