CN218236187U

CN218236187U - Butterfly valve with self-adaptive sealing structure

Info

Publication number: CN218236187U
Application number: CN202222179132.8U
Authority: CN
Inventors: 孙忠贵; 孙成盛; 孙晓敏
Original assignee: Jiangsu Oliwei Fluid Technology Co ltd
Current assignee: Jiangsu Oliwei Fluid Technology Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-01-06
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a butterfly valve with self-adaptation seal structure relates to butterfly valve technical field, including valve body, butterfly plate and sealing washer, the butterfly plate includes butterfly plate seat and butterfly plate lid, it has first recess to open in the middle of the butterfly plate seat, first recess edge is equipped with the seal ring, be equipped with the U-shaped opening on the seal ring, it has the second recess to open in the middle of the butterfly plate lid, open bottom the second recess has the water inlet, be equipped with the butterfly drum in the second recess, second recess edge is equipped with butterfly drum ring, be equipped with the U-shaped opening on the butterfly drum ring, fixedly connected with is in succession between sealing washer and the butterfly drum manages, all pack in sealing washer and the butterfly drum has the fluid, sealing washer and butterfly drum are elastic material and make. The technical scheme has the technical effect of self-adaptive adjustment of sealing performance, and is wide in application range, good in sealing performance, simple in structure, more convenient to install and use and lower in manufacturing cost.

Description

Butterfly valve with self-adaptive sealing structure

Technical Field

The utility model relates to a butterfly valve technical field, especially a butterfly valve with self-adaptation seal structure.

Background

Most of sealing rings of the existing butterfly valves are in fixed shapes, the sealing performance of the sealing rings is fixed, the capacity of bearing water pressure is fixed and unchangeable, leakage can occur when the pressure of liquid in a pipeline reaches or exceeds certain strength, the improved butterfly valve sealing structure with an inflation structure is also provided at present, but an inflation or pressurization device needs to be additionally arranged, the cost is higher, and the operation and the use are more complicated.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a following technical scheme:

the utility model provides a butterfly valve with self-adaptation seal structure, includes valve body, butterfly plate and sealing washer, the butterfly plate includes butterfly plate seat and butterfly plate lid, it has first circular shape recess to open in the middle of the butterfly plate seat, first recess edge is equipped with bellied seal ring, be equipped with a plurality of U-shaped openings on the seal ring encircles, the circumference evenly distributed of U-shaped opening around the seal ring, the sealing washer cup joints on the seal ring encircles, it has circular shape second recess to open in the middle of the butterfly plate lid, open second recess bottom has a plurality of water inlets, be equipped with circular shape butterfly drum in the second recess, second recess edge is equipped with bellied butterfly drum ring, be equipped with a plurality of and the same U-shaped opening on the seal ring encircles, the seal ring encircles and connects on the butterfly drum ring, sealing washer and butterfly drum are hollow structure, fixedly connected with a plurality of connecting pipes between sealing washer and the butterfly drum pass through connecting pipe intercommunication, connecting pipe inlays in U-shaped opening, sealing washer and butterfly drum ring and butterfly drum intussuseption, fluid material all is filled with the butterfly drum sealing washer and butterfly drum material.

Further, the water inlets are arranged in a grid shape.

Furthermore, an isolation net is arranged between the water inlet and the butterfly drum.

Further, the fluid filled in the sealing ring and the butterfly drum is gas or liquid.

Further, the sealing ring and the butterfly drum are both made of rubber.

Further, the outer diameters of the butterfly plate seat and the butterfly plate cover are the same.

Further, the external diameter of sealing washer is greater than the external diameter of butterfly plate seat.

The utility model has the advantages that: this technical scheme can realize the automatically regulated of butterfly valve leakproofness according to how much of liquid in the pipeline, has the technological effect of self-adaptation regulation leakproofness, and application scope is wide, and the leakproofness is good, simple structure, and installation and use are more convenient, and manufacturing cost is lower.

Drawings

FIG. 1 is a schematic view of the butterfly valve of the present invention;

FIG. 2 is a schematic view of the butterfly plate assembly of the present invention;

FIG. 3 is a schematic view of the butterfly plate seat of the present invention;

FIG. 4 is a schematic view of the butterfly plate cover structure of the present invention;

FIG. 5 is a schematic cross-sectional view of the seal ring, the butterfly drum and the connecting tube of the present invention;

in the figure: 1. the butterfly valve comprises a valve body, 2 parts of a butterfly plate, 3 parts of a sealing ring, 4 parts of a butterfly drum, 5 parts of a connecting pipe, 20 parts of a butterfly plate seat, 21 parts of a butterfly plate cover, 22 parts of a first groove, 23 parts of a sealing ring, 24 parts of a butterfly drum ring, 25.U-shaped openings, 26 parts of a second groove and 27 parts of a water inlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

As shown in fig. 1-5, a butterfly valve with a self-adaptive sealing structure includes a valve body 1, a butterfly plate 2 and a sealing ring 3, where the butterfly plate 2 includes a butterfly plate seat 20 and a butterfly plate cover 21, a circular first groove 22 is opened in the middle of the butterfly plate seat 20, a raised sealing ring 23 is provided at the edge of the first groove 22, a plurality of U-shaped openings 25 are provided on the sealing ring 23, the U-shaped openings 25 are uniformly distributed around the circumference of the sealing ring 23, the sealing ring 3 is sleeved on the sealing ring 23, a circular second groove 26 is opened in the middle of the butterfly plate cover 21, a plurality of water inlets 27 are opened at the bottom of the second groove 26, be equipped with circular shape butterfly drum 4 in the second recess 26, second recess 26 edge is equipped with bellied butterfly drum ring 24, be equipped with on the butterfly drum ring 24 a plurality ofly with the seal ring 23 on the same U-shaped opening 25, seal ring 23 cup joints on butterfly drum ring 24, sealing washer 3 and butterfly drum 4 are hollow structure, a plurality of connecting tubes 5 of fixedly connected with between sealing washer 3 and the butterfly drum 4, sealing washer 3 and butterfly drum 4 are through connecting tube 5 intercommunication, connecting tube 5 inlays in U-shaped opening 25, all pack with the butterfly drum 4 in sealing washer 3 and the butterfly drum 4 has the fluid, sealing washer 3 and butterfly drum 4 are elastic material and make.

As described above, when liquid exists in the pipeline, the liquid can pass through the water inlet 27 to generate pressure on the butterfly drum 4, the cavity of the butterfly drum 4 is contracted by the pressure of the liquid, the fluid in the cavity of the butterfly drum 4 is extruded and flows into the sealing ring 3 through the connecting pipe 5, the sealing ring 3 expands due to the increase of the internal pressure, the volume is increased, the sealing ring 3 is in closer contact with the inner wall of the valve body 1, and meanwhile, the pressure of the sealing ring 3 on the inner wall of the valve body 1 is also increased, so that the effect of enhancing the sealing performance is achieved; when the liquid in the pipeline is reduced, the pressure of the liquid on the butterfly drum 4 is reduced, so that the pressure in the sealing ring 3 is reduced, the volume is reduced, the contact area between the sealing ring 3 and the inner wall of the valve body 1 is reduced, the pressure between the sealing ring 3 and the inner wall of the valve body 1 is reduced, and the sealing performance is weakened; in summary, the structure can realize the automatic adjustment of the sealing performance of the butterfly valve according to the amount of liquid in the pipeline, and has the technical effect of self-adaptive adjustment of the sealing performance.

As shown in fig. 2 and 4, the water inlets 27 are arranged in a grid pattern. This arrangement allows the area of the inlet 27 to be larger, while the grid also provides support for the butterfly drum 4.

As shown in fig. 1, an isolation net is further arranged between the water inlet 27 and the butterfly drum 4. The separation net can prevent some fine sundries from entering the valve body, and the normal work of the valve body is ensured.

Preferably, the fluid filled in the sealing ring 3 and the butterfly drum 4 is gas or liquid. The two fluids are relatively common and universal, are simpler to manufacture and use, and can also reduce cost.

Preferably, the sealing ring 3 and the butterfly drum 4 are both made of rubber. The rubber is a universal material, so that the manufacturing is more convenient, and the cost is lower.

As shown in fig. 2, the outer diameters of the butterfly plate seat 20 and the butterfly plate cover 21 are preferably the same. The assembly operation is simpler and more intuitive in such a way, and the sealing ring 3 can be effectively fixed.

Preferably, the outer diameter of the seal ring 3 is larger than the outer diameter of the butterfly plate seat 20. The arrangement ensures that the butterfly plate seat 20 does not contact the inner wall of the valve body 1, so that the contact and the sealing performance of the sealing ring 3 and the inner wall of the valve body 1 are not influenced.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "top", "bottom", "lateral", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a butterfly valve with self-adaptation seal structure, includes valve body (1), butterfly plate (2) and sealing washer (3), its characterized in that, butterfly plate (2) are including butterfly plate seat (20) and butterfly plate lid (21), open in the middle of butterfly plate seat (20) has first circular shape recess (22), first recess (22) edge is equipped with bellied seal ring (23), be equipped with a plurality of U-shaped openings (25) on seal ring (23), U-shaped opening (25) are around the circumference evenly distributed of seal ring (23), sealing washer (3) cup joint on seal ring (23), open in the middle of butterfly plate lid (21) has circular shape second recess (26), open bottom second recess (26) has a plurality of water inlets (27), be equipped with circular shape drum (4) in second recess (26), second recess (26) edge is equipped with bellied second recess (24), be equipped with on the butterfly ring (24) and cup joint a plurality of butterfly ring (23) with seal ring (23) the same butterfly ring (23) on butterfly ring (23) the butterfly ring (4), be connected with between seal ring (5) and butterfly plate sealing washer (3) the hollow drum (5), be connected with butterfly ring (5) on butterfly ring (24) and butterfly ring (5) be connected with the butterfly ring (24) and be connected with the butterfly ring (5) the butterfly ring (3) be connected with the butterfly ring (5) and be connected with the butterfly ring (24), the connecting pipe (5) is embedded in the U-shaped opening (25), fluid is filled in the sealing ring (3) and the butterfly drum (4), and the sealing ring (3) and the butterfly drum (4) are made of elastic materials.

2. A butterfly valve with an adaptive sealing structure according to claim 1, characterized in that the water inlets (27) are arranged in a grid.

3. The butterfly valve with the self-adaptive sealing structure according to claim 1, wherein an isolation net is further arranged between the water inlet (27) and the butterfly drum (4).

4. A butterfly valve with an adaptive sealing structure according to claim 1, characterized in that the fluid filled in the sealing ring (3) and the butterfly drum (4) is gas or liquid.

5. A butterfly valve with an adaptive sealing structure according to claim 1, characterised in that the sealing ring (3) and the butterfly drum (4) are both made of rubber.

6. The butterfly valve with an adaptive sealing structure according to claim 1, wherein the outer diameters of the butterfly plate seat (20) and the butterfly plate cover (21) are the same.

7. The butterfly valve with an adaptive sealing structure according to claim 1, wherein the outer diameter of the sealing ring (3) is larger than the outer diameter of the butterfly plate seat (20).