CN218718809U

CN218718809U - Upper sealing structure of valve and regulating valve

Info

Publication number: CN218718809U
Application number: CN202222805852.0U
Authority: CN
Inventors: 孔德新; 孙智强
Original assignee: Weilong Valve Co ltd
Current assignee: Weilong Valve Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-24
Anticipated expiration: 2032-10-24

Abstract

The utility model provides a seal structure and governing valve on valve belongs to valve technical field, including valve gap, seal assembly and valve rod, the axis department of valve gap is provided with the valve gap through-hole that supplies the valve rod to pass, seal assembly sets up the bottom at the valve gap through-hole. By changing the upper sealing structure of the original valve and adopting the sealing sleeve and the Y-shaped sealing ring for sealing, the problem that the upper sealing structure of the original valve is difficult to process and maintain is solved.

Description

Upper sealing structure of valve and regulating valve

Technical Field

The utility model belongs to the technical field of the valve, concretely relates to seal structure and governing valve on valve.

Background

At present, the regulating valves at home and abroad are various and are widely used in the fields of municipal water supply and drainage, heating and water supply and the like.

The upper sealing structure used by the existing regulating valve is usually sealed by adopting an O-shaped sealing ring in a valve cover, and the inventor finds that the upper sealing structure mainly has the following defects:

1. the O-shaped ring grooves in the valve cover are large in number, the sizes of the O-shaped ring grooves are difficult to control when the O-shaped ring grooves are machined, and the sealing effect is affected by overlarge or undersize sizes.

2. The O-shaped sealing ring in the valve cover is inconvenient to take out, and the valve is difficult to maintain.

SUMMERY OF THE UTILITY MODEL

The defect or not enough to among the prior art, the utility model provides a seal structure and governing valve on valve changes the last seal structure of original valve, adopts seal cover and Y type sealing washer to seal, has solved the last seal structure processing of original valve and the problem of maintenance difficulty.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, an embodiment of the utility model provides a seal structure on valve, including valve gap, seal assembly and valve rod, the axis department of valve gap is provided with the valve gap through-hole that supplies the valve rod to pass, seal assembly sets up the bottom at the valve gap through-hole.

Further, the sealing assembly comprises a sealing sleeve and a Y-shaped sealing ring, the sealing sleeve is arranged in a sealing sleeve groove in the inner wall of the through hole of the valve cover, and the Y-shaped sealing ring is arranged in a Y-shaped ring groove in the inner wall of the through hole of the valve cover.

Furthermore, the Y-shaped ring groove is arranged close to the end part of the valve cover through hole, and the sealing sleeve groove is arranged close to one end, far away from the end part of the valve cover through hole, of the Y-shaped ring groove.

Further, a baffle is arranged between the seal sleeve groove and the Y-shaped ring groove, and the baffle and the valve cover are integrally formed.

Furthermore, the sealing sleeve is of a tubular structure with openings at two ends, a plurality of inner wall O-shaped ring grooves are formed in the inner wall of the sealing sleeve and are arranged in parallel, and a distance is set at intervals between every two adjacent inner wall O-shaped ring grooves.

Furthermore, a plurality of outer wall O-shaped ring grooves are formed in the outer wall of the sealing sleeve and are arranged in parallel, and a distance is set at intervals between every two adjacent outer wall O-shaped ring grooves.

Furthermore, a plurality of inner wall 0-shaped ring grooves and a plurality of outer wall O-shaped ring grooves on the sealing sleeve are arranged in a cross mode.

Furthermore, O-shaped sealing rings are arranged in the O-shaped ring groove on the inner wall and the O-shaped ring groove on the outer wall.

In a second aspect, the embodiment of the utility model provides a regulating valve utilizes as above a seal structure on valve, still include valve body, valve clack, hand wheel and adjusting bolt, the valve clack is located the valve body, the valve gap sets up at the valve body top, valve rod one end links to each other with the valve clack, and the other end links to each other with the hand wheel.

Further, the adjusting bolt is arranged at the top of the valve cover.

The utility model has the advantages that:

1. through adopting the seal cover to seal, the valve gap is inside only to need to process the seal cover recess, and processing is simple, and measures the convenience, has solved the problem of original inside O type circle recess processing measurement difficulty of valve gap.

2. Through setting up the seal cover to with O type sealing washer setting on the seal cover, the dismouting is changed conveniently, has solved the problem that original valve dismouting changed the sealing washer difficulty.

Drawings

Fig. 1 is a schematic view of the overall structure of an upper sealing structure in embodiment 1 of the present invention;

fig. 2 is a schematic view of the overall structure of a regulating valve in embodiment 2 of the present invention;

wherein, 1, valve cover; 2. a valve stem; 3. sealing sleeves; 4. a Y-shaped seal ring; 5. a seal cartridge recess; 6. a Y-shaped ring groove; 7. an O-shaped ring groove on the inner wall; 8. an O-shaped ring groove on the outer wall; 9. an O-shaped sealing ring; 10. a valve body; 11. a valve flap; 12. a hand wheel; 13. and adjusting the bolt.

Detailed Description

The present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "upper", "lower", "left" and "right" in the present invention, if any, merely indicate that the directions of movement of the device or element are consistent with those of the drawings, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Term interpretation section: the terms "mounting", "connecting", "fixing" and the like in the present invention should be understood in a broad sense, for example, they may be fixed or detachable or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

The utility model discloses a typical embodiment, as shown in fig. 1, a seal structure on valve, including valve gap 1, seal assembly and valve rod 2, the axis department of valve gap 1 is provided with the valve gap through-hole that supplies the valve rod to pass, seal assembly sets up in valve gap through-hole's bottom, seals between valve gap through-hole and the valve rod 2 through seal assembly, avoids appearing the infiltration phenomenon.

The sealing assembly comprises a sealing sleeve 3 and a Y-shaped sealing ring 4, the sealing sleeve 3 is arranged in a sealing sleeve groove 5 on the inner wall of the valve cover through hole, the Y-shaped sealing ring 4 is arranged in a Y-shaped ring groove 6 on the inner wall of the valve cover through hole, the Y-shaped ring groove 6 is arranged close to the end part of the valve cover through hole, the sealing sleeve groove 5 is arranged close to one end, away from the end part of the valve cover through hole, of the Y-shaped ring groove 6, a baffle is arranged between the sealing sleeve groove 5 and the Y-shaped ring groove 6, and the baffle and the valve cover are integrally formed.

The sealing sleeve 3 is made of plastic and is of a cylindrical structure with two open ends, a plurality of inner wall O-shaped ring grooves 7 are formed in the inner wall of the sealing sleeve 3, the inner wall O-shaped ring grooves 7 are arranged in parallel, and a distance is set at intervals between every two adjacent inner wall O-shaped ring grooves 7. A plurality of outer wall O type circle grooves 8 have been seted up on the outer wall of seal cover 3, a plurality of outer wall O type circle grooves 8 parallel arrangement, and the interval sets for the distance between two adjacent outer wall O type circle grooves 8.

0 type circle recess 7 of a plurality of inner walls and a plurality of outer wall O type circle recess 8 cross arrangement on the seal cover 3, every outer wall O type circle recess 8 is seted up on the 3 outer walls of seal cover between two adjacent inner wall O type circle recesses 7 promptly, every inner wall O type circle recess 7 is seted up on the 3 inner walls of seal cover between two adjacent outer wall O type circle recesses 8, a plurality of inner wall O type circle recesses 7 and a plurality of outer wall O type circle recesses 8 cross arrangement, on the one hand can guarantee the bulk strength of seal cover 3, on the other hand can guarantee the leakproofness of seal cover 3.

All be provided with O type sealing washer 9 in inner wall O type recess 7 and outer wall O type recess 8, will seal cover 3 is placed in seal cover recess 5, and the O type sealing washer 9 of placing in outer wall O type recess 8 contacts with seal cover recess 5 inner wall for seal between seal cover 3 and the seal cover recess 5, the O type sealing washer 9 of placing in inner wall O type recess 7 contacts with valve rod 2 surface, is used for sealing between seal cover 3 and the valve rod 2, through seal cover 3 can realize the sealing between valve gap through-hole and the valve rod 2.

Example 2

A regulating valve utilizes the upper sealing structure of the valve as shown in embodiment 1, and further comprises a valve body 10, a valve clack 11, a hand wheel 12 and a regulating bolt 13 as shown in figure 2, wherein the valve clack 11 is positioned in the valve body 10, a valve cover 1 in the upper sealing structure is arranged at the top of the valve body 10, one end of a valve rod 2 in the upper sealing structure is connected with the valve clack 11, the other end of the valve rod is connected with the hand wheel 12, and the opening or closing of the valve clack 11 is controlled by rotating the hand wheel 12.

The adjusting bolt 13 is arranged at the top of the valve cover 1, and the bottom of the adjusting bolt 13 supports against the valve rod 2, so that the opening and closing angle of the valve clack 11 is controlled.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. The upper sealing structure of the valve is characterized by comprising a valve cover, a sealing assembly and a valve rod, wherein a valve cover through hole for the valve rod to pass through is formed in the axis of the valve cover, and the sealing assembly is arranged at the bottom of the valve cover through hole;

the sealing assembly comprises a sealing sleeve, and the sealing sleeve is arranged in a sealing sleeve groove on the inner wall of the through hole of the valve cover.

2. The seal-on-valve structure of claim 1, wherein the seal assembly further comprises a Y-ring disposed in a Y-ring groove on an inner wall of the bonnet bore.

3. The seal on valve as claimed in claim 2, wherein said Y-ring groove is disposed adjacent the end of the bonnet aperture, and said gland groove is disposed adjacent an end of the Y-ring groove remote from the end of the bonnet aperture.

4. The seal structure on the valve as claimed in claim 2, wherein a baffle is provided between the seal cover groove and the Y-ring groove, and the baffle is integrally formed with the valve cover.

5. The valve upper sealing structure of claim 1, wherein the sealing sleeve is a cylindrical structure with openings at two ends, the inner wall of the sealing sleeve is provided with a plurality of inner wall O-ring grooves, the inner wall O-ring grooves are arranged in parallel, and a set distance is arranged between two adjacent inner wall O-ring grooves.

6. The valve upper sealing structure of claim 5, wherein a plurality of outer wall O-ring grooves are formed in the outer wall of the sealing sleeve, the outer wall O-ring grooves are arranged in parallel, and a set distance is formed between every two adjacent outer wall O-ring grooves.

7. The seal on valve of claim 6, wherein the plurality of inner wall 0-ring grooves on the sealing sleeve intersect the plurality of outer wall O-ring grooves.

8. The seal on valve as claimed in claim 7, wherein O-rings are provided in both the inner and outer O-ring grooves.

9. A regulating valve, which utilizes the sealing structure on the valve as claimed in any one of claims 1-8, characterized by further comprising a valve body, a valve clack, a hand wheel and a regulating bolt, wherein the valve clack is positioned in the valve body, the valve cover is arranged on the top of the valve body, one end of the valve rod is connected with the valve clack, and the other end of the valve rod is connected with the hand wheel.

10. A regulator valve as defined in claim 9 wherein the regulator bolt is disposed on top of the valve cover.