CN219317643U

CN219317643U - Butterfly valve rubber sealing ring

Info

Publication number: CN219317643U
Application number: CN202320848907.8U
Authority: CN
Inventors: 王长志; 陈仲家; 唐贤聪
Original assignee: Ningbo Beilun Guangying Rubber Industry Co ltd
Current assignee: Ningbo Beilun Guangying Rubber Industry Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-07-07
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a butterfly valve rubber sealing ring, which relates to the field of valves, wherein the U-shaped elastic sealing ring comprises a rubber pipe, a spiral spring, rectangular gaskets and circular gaskets, wherein a plurality of rectangular gaskets are embedded in the inner surface layer and the outer surface layer of the U-shaped elastic sealing ring, the rubber pipe is clamped in an inner layer groove of the U-shaped elastic sealing ring, a plurality of circular gaskets are also embedded in the inner surface layer and the outer surface layer of the rubber pipe, the angle positions of the circular gaskets are the same as those of the rectangular gaskets, and when a valve plate is opened, the spiral spring continuously compresses the spiral spring until reaching the maximum value due to the flow of fluid, so that the elastic sealing ring and the rubber pipe are fully contacted; when the valve plate is closed, the spiral spring needs to be restored to the original state, so that the elastic sealing ring and the valve plate are fully contacted, the air tightness is enhanced, and meanwhile, the rubber tube and the elastic sealing ring are made of soft materials, so that the valve plate is better protected from damage.

Description

Butterfly valve rubber sealing ring

Technical Field

The utility model relates to the field of valves. In particular to a butterfly valve rubber sealing ring.

Background

The butterfly valve is a valve which uses a disc type opening and closing member to reciprocate by about 90 degrees to open, close and regulate a fluid channel. The butterfly valve has the advantages of simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment, simple and rapid operation, good flow regulation function and closing sealing performance, and can be suitable for pipelines of various corrosive media by matching with butterfly valves made of different materials, thus being one of the fastest growing valve varieties in the last decade.

The sealing washer parcel is at the circumference surface of valve plate, and when fluid passed through, the valve plate needs to be opened, and after the fluid passed through, the valve plate needs to be closed, and after long-term repetition operation, the space between sealing washer and the valve plate became big, leads to the problem of gas tightness variation.

Disclosure of Invention

The utility model aims to solve the problem that the air tightness of the valve plate cannot be guaranteed, and provides a U-shaped elastic sealing ring, a rubber tube is embedded into an inner groove of the U-shaped elastic sealing ring, a spiral spring is placed in the inner circumferences of the rubber tube and the U-shaped elastic sealing ring, the groove is covered, the spiral spring is prevented from entering water, the air tightness of the sealing ring is improved by means of deformation of the spiral spring, and in order to achieve the purposes, the utility model adopts the following technical scheme:

the utility model provides a butterfly valve rubber seal is U type elastic seal, U type elastic seal includes rubber tube, coil spring, rectangle gasket and circular gasket, a plurality of rectangle gaskets of embedding in the inside and outside top layer of U type elastic seal, the rubber tube card is in U type elastic seal's inlayer recess.

Preferably, a plurality of circular gaskets are embedded in the inner surface layer and the outer surface layer of the rubber tube, and the angle positions of the circular gaskets are the same as those of the rectangular gaskets.

Preferably, the U-shaped elastic sealing ring is provided with a clamp spring on the inner layer, the clamp spring comprises a detachable clamping column and a clamping groove, and the clamping groove is connected with the clamping column.

Preferably, the U-shaped elastic sealing ring can be tightly contacted around the periphery of the valve plate.

Preferably, the middle position of the valve plate is provided with a through hole from top to bottom, and the lower end of the valve rod penetrates through the through hole to fix the valve plate.

Preferably, the lower end of the valve rod penetrates through the through hole and is movably connected with the valve body.

Preferably, the two sides of the rectangular gasket are fixedly connected with the spiral springs, and the two sides of the circular gasket are fixedly connected with the spiral springs.

Furthermore, the U-shaped spring sealing ring groove covers the O-shaped sealing tube and is bonded through glue.

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

according to the butterfly valve, the rubber pipe and the elastic sealing ring are combined to improve the air tightness of the butterfly valve, and the elastic sealing ring and the rubber pipe are fully contacted by continuously compressing until the maximum value is reached when the valve plate is opened through the deformation characteristic of the spiral spring; when the valve plate is closed, the spiral spring is required to restore to the original state, so that the elastic sealing ring and the valve plate are fully contacted, the air tightness is enhanced, and meanwhile, the rubber and the elastic sealing ring are soft materials, so that the valve plate is better protected from damage.

Drawings

FIG. 1 is a schematic diagram of an overall device of a butterfly valve rubber seal ring of the utility model.

FIG. 2 is a schematic view of a U-shaped elastic seal ring of the present utility model.

FIG. 3 is a schematic view of the spring, circular shim and rectangular shim connection of the present utility model.

Fig. 4 is a schematic diagram of the inner layer clamp spring and the clamping groove of the U-shaped elastic sealing ring.

FIG. 5 is a schematic view of a valve stem through hole of the present utility model.

Wherein, 1, U-shaped elastic sealing ring; 2. a rubber tube; 3. a coil spring; 4. a rectangular gasket; 5. a circular gasket; 6. clamping springs; 7. a clamping groove; 8. a valve stem; 9. a valve plate; 10. a through hole; 11 valve body; 12. and (5) clamping the column.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, so as to help those skilled in the art to more fully understand the technical solutions of the present application.

Examples:

referring to fig. 1, please combine the above description, a rubber sealing ring of a butterfly valve is a U-shaped elastic sealing ring 1, which is characterized in that: the U-shaped elastic sealing ring 1 comprises a rubber tube 2, a spiral spring 3, a rectangular gasket 4 and a circular gasket 5, wherein a plurality of rectangular gaskets 4 are embedded in the inner surface layer and the outer surface layer of the U-shaped elastic sealing ring 1, the rubber tube 2 is clamped in an inner layer groove of the U-shaped elastic sealing ring 1, a plurality of circular gaskets 5 are embedded in the inner surface layer and the outer surface layer of the rubber tube 2, the angle position of the circular gasket 5 is the same as that of the rectangular gasket 4, a clamp spring 6 is arranged in the inner layer of the U-shaped elastic sealing ring 1, the clamp spring 6 comprises a detachable clamping groove 7 and a clamping column 12, the clamping groove 7 is connected with the clamping column 12, the U-shaped elastic sealing ring 1 can tightly contact with the periphery of a valve plate 9 around the U-shaped elastic sealing ring groove, and the U-shaped elastic sealing ring groove covers the O-shaped sealing tube and is bonded through glue.

The working principle of the butterfly valve rubber sealing ring is as follows:

when the valve plate 9 is opened, the spiral spring 3 continuously compresses the spiral spring 3 until the maximum value is reached due to the flow of fluid, so that the elastic sealing ring 1 and the rubber tube 2 are fully contacted; when the valve plate 9 is closed, the spiral spring 3 needs to be restored to the original state, so that the elastic sealing ring 1 and the valve plate 9 are fully contacted, the air tightness is enhanced, and meanwhile, the rubber tube 2 and the elastic sealing ring 1 are made of soft materials, so that the valve plate 9 is better protected from damage.

Claims

1. Butterfly valve rubber seal, butterfly valve rubber seal be U-shaped elastic seal (1), its characterized in that: the U-shaped elastic sealing ring is characterized in that a rubber tube (2), a spiral spring (3), rectangular gaskets (4) and round gaskets (5) are further arranged on the U-shaped elastic sealing ring (1), a plurality of rectangular gaskets (4) are embedded in the inner surface layer and the outer surface layer of the U-shaped elastic sealing ring (1), and the rubber tube (2) is clamped in an inner layer groove of the U-shaped elastic sealing ring (1).

2. The butterfly valve rubber seal of claim 1, wherein: a plurality of circular gaskets (5) are embedded in the inner surface layer and the outer surface layer of the rubber tube (2), and the angle positions of the circular gaskets (5) are the same as those of the rectangular gaskets (4).

3. The butterfly valve rubber seal of claim 2, wherein: the U-shaped elastic sealing ring is characterized in that a clamp spring (6) is arranged on the inner layer of the U-shaped elastic sealing ring (1), the clamp spring (6) comprises a detachable clamping column (12) and a clamping groove (7), and the clamping groove (7) is connected with the clamping column (12).

4. A butterfly valve rubber seal according to claim 3, wherein: the U-shaped elastic sealing ring (1) can tightly contact around the periphery of the valve plate (9).

5. The butterfly valve rubber seal of claim 4, wherein: the middle part position of valve plate (9) is equipped with from following through-hole (10), and the lower extreme of valve rod (8) passes through-hole (10) fixed valve plate (9).

6. The butterfly valve rubber seal of claim 5, wherein: the lower end of the valve rod (8) penetrates through the through hole (10) and is movably connected with the valve body (11).

7. The butterfly valve rubber seal of claim 6, wherein: the two sides of the rectangular gasket (4) are fixedly connected with the spiral springs (3), and the two sides of the circular gasket (5) are fixedly connected with the spiral springs (3).

8. The butterfly valve rubber seal of claim 6, wherein: the U-shaped spring sealing ring groove covers the O-shaped sealing tube and is bonded through glue.