CN210950047U

CN210950047U - Flange swing type fluorine lining check valve

Info

Publication number: CN210950047U
Application number: CN201921399875.8U
Authority: CN
Inventors: 方福永
Original assignee: Zhejiang Lierduo Valve Co ltd
Current assignee: Zhejiang Lierduo Valve Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-07-07
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to a flange swing type fluorine lining check valve, which comprises a left valve body, a right valve body, a rotating part and a valve clack, wherein the left valve body and the right valve body are fixedly connected through bolts to form a valve body; one end of the valve clack is hinged with the rotating piece. The flange swing type fluorine lining check valve is reasonable and simple in structural design, the valve clack is selectively arranged in the valve body by 180 degrees, the change of the flow direction of a medium in a pipeline can be realized, and the operation is simple.

Description

Flange swing type fluorine lining check valve

Technical Field

The utility model belongs to the technical field of the valve technique and specifically relates to a flange swing-type fluorine lining check valve.

Background

The swing check valve is also called a check valve or a check valve and is used for preventing media in the pipeline from flowing backwards. The one-way circulation performance of the check valve is widely applied, and simultaneously, problems easily occur, for example, when the check valve is connected reversely carelessly or medium flows in a required direction, the existing flange swing type fluorine lining check valve only needs to be disassembled and assembled again to solve the problems, the disassembling and assembling operation is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

To the deficiency in the background art, the utility model provides a flange swing type fluorine lined check valve to overcome above defect.

The utility model provides a technical scheme that its technical problem adopted is:

a flange swing type fluorine lining check valve comprises a left valve body, a right valve body, a rotating piece and a valve clack, wherein the left valve body and the right valve body are fixedly connected through bolts to form a valve body; one end of the valve clack is hinged with the rotating piece.

And the sealing element is provided with a through hole for the rotating rod to penetrate through.

The outer wall of the rotating piece is arranged in a spherical surface mode, one side, provided with the valve clack, of the rotating piece is provided with a groove and a hinge groove, the groove is concentric with the medium flow channel, the diameter of the groove is larger than that of the medium flow channel, the hinge groove is communicated with the groove, and the valve clack is hinged in the hinge groove.

The valve clack is provided with a sealing surface sealed with the groove.

The left valve body and the right valve body are connected to form a hole for the rotating rod to pass through, the rotating rod and the hole diameter form a seasoning tank, filler is arranged in the seasoning tank, and a filler gland is arranged above the seasoning tank.

Due to the adoption of the technical scheme, the problem that the existing flange swing type fluorine lining check valve needs to be disassembled and assembled again when the connection is reversed in a pipeline or a medium in the pipeline needs to flow reversely is effectively solved.

Drawings

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

Fig. 2 is a schematic structural diagram of the present invention for adjusting the flow direction.

Fig. 3 is a schematic structural view of the sealing member 5.

Fig. 4 is a schematic view of the structure of the rotating member 4 hinged with the valve flap 3.

FIG. 1, left valve body; 2. a left valve body; 3. a valve flap; 31 a sealing surface; 4. a rotating member; 41. a medium flow passage; 42. a groove; 43. a hinge slot; 5. a seal member; 51. a body; 52. a tab; 53. a through hole; 6. rotating the rod; 7. an aperture; 71. a seasoning tank; 72. and (4) a packing gland.

Detailed Description

Referring to fig. 1 in conjunction with fig. 2, fig. 3, and fig. 4, the present invention: the utility model provides a flange swing formula fluorine lining check valve, includes left valve body 1, left valve body 2, rotating member 4 and valve clack 3, and left and right sides valve body passes through bolt fixed connection and forms the valve body, and in the valve body was arranged in to valve clack 3, rotating member 4 center was equipped with medium runner 41, and rotating member 4 was arranged in the valve body and rotatable, was equipped with sealing member 5 between rotating member 4 and the valve body, sealing member 5 includes annular body 51 and the annular lug 52 on the body 51 outer wall, lug 52 is hugged closely about the valve body junction by the butt clamp, and body 51 hugs closely with the valve body inner wall, forms sealedly between body 51 and the rotating member 4, avoids the medium to pass through between rotating member 4 and the valve body. The rotating piece 4 is connected with a rotating rod 6 extending out of the valve body; one end of the valve clack 3 is hinged with the rotating piece 4.

The sealing element 5 is provided with a through hole 53 for the rotating rod 6 to penetrate through.

The outer wall of the rotating member 4 is arranged in a spherical shape, so that the rotating member 4 can rotate and the sealing effect between the rotating member and the body 51 is facilitated. One side of the rotating piece 4, which is provided with the valve clack 3, is provided with a groove 42 and a hinge groove 43, the groove 42 is concentric with the medium flow channel 41, the diameter of the groove 42 is larger than that of the medium flow channel 41, the hinge groove 43 is communicated with the groove 42, and the valve clack 3 is hinged in the hinge groove 43.

The valve flap 3 is provided with a sealing surface 31 which seals with the recess 42.

The left valve body and the right valve body are connected to form a hole 7 for the rotating rod 6 to pass through, the rotating rod 6 and the hole 7 are in diameter to form a seasoning tank 71, filler is arranged in the seasoning tank 71, and a filler gland 72 is arranged above the seasoning tank 71. The tip cross-section that extends the swing arm 7 of valve body is regular hexagon, revolves to twist swing arm 7 through the spanner, and then drives rotating member 4 rotatory, and rotatory 180 degrees have realized the flow direction of check valve promptly.

When the medium flow direction of the check valve needs to be adjusted, the end part of the rotating rod 6 exposed outside the valve body is screwed by a wrench, the rotating piece 4 connected with the valve clack 3 is driven to rotate together, and the rotation 180 is changed from the state in fig. 1 to the state in fig. 2, namely, the flow direction of the check valve is changed.

The utility model discloses when the effectual current flange swing type fluorine lined check valve that has improved connects in the pipeline anti-perhaps medium needs to flow against the current in the pipeline, need be with the problem of this check valve dismouting again, this flange swing type fluorine lined check valve structural design is reasonable simple, through with the valve clack optional packing 180 degrees in the valve body, can realize the transform of medium flow direction in the pipeline, easy operation.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a flange swing formula fluorine lining check valve, includes left valve body (1), right valve body (2) and valve clack (3), controls the valve body and passes through bolt fixed connection and form the valve body, and in valve body, its characterized in that was arranged in to valve clack (3): the rotary valve is characterized by further comprising a rotary piece (4), a medium flow channel (41) is arranged in the center of the rotary piece (4), the rotary piece (4) is arranged in the valve body and can rotate, a sealing piece (5) is arranged between the rotary piece (4) and the valve body, the sealing piece (5) comprises an annular body (51) and an annular protruding piece (52) on the outer wall of the body (51), the protruding piece (52) is clamped at the joint of the left valve body and the right valve body, the body (51) is tightly attached to the inner wall of the valve body, and a rotary rod (6) extending out of the valve body is connected to the; one end of the valve clack (3) is hinged with the rotating piece (4).

2. The flange swing type fluorine lined check valve of claim 1, wherein: and the sealing element (5) is provided with a through hole (53) for the rotating rod (6) to penetrate through.

3. The flange swing type fluorine lined check valve of claim 1, wherein: the outer wall of the rotating part (4) is arranged in a spherical surface mode, one side, provided with the valve clack (3), of the rotating part (4) is provided with a groove (42) and a hinge groove (43), the groove (42) is concentric with the medium flow channel (41), the diameter of the groove (42) is larger than that of the medium flow channel (41), the hinge groove (43) is communicated with the groove (42), and the valve clack (3) is hinged into the hinge groove (43).

4. The flange swing type fluorine lined check valve of claim 1, wherein: the valve clack (3) is provided with a sealing surface (31) which is sealed with the groove (42).

5. The flange swing type fluorine lined check valve of claim 1, wherein: the left valve body and the right valve body are connected to form a hole (7) for the rotating rod (6) to pass through, the rotating rod (6) and the diameter of the hole (7) form a seasoning tank (71), filler is arranged in the seasoning tank (71), and a filler gland (72) is arranged above the seasoning tank (71).