CN210890153U

CN210890153U - Butterfly valve body

Info

Publication number: CN210890153U
Application number: CN201922070071.XU
Authority: CN
Inventors: 季奇章; 季豪敏
Original assignee: Wenzhou Wanhong Valve Co ltd
Current assignee: Wenzhou Wanhong Valve Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-06-30
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to a butterfly valve body, include the valve body and install in the sealing member of valve body lateral wall, sealed recess has been seted up to the lateral wall of sealing member, the lateral wall of sealed recess is provided with flexible sealing pad. The utility model discloses have the wearing and tearing that have reduced the spherical sealing end face of valve body to the effect of valve body has been promoted to a certain extent.

Description

Butterfly valve body

Technical Field

The utility model belongs to the technical field of a butterfly valve's technique and specifically relates to a butterfly valve body is related to.

Background

The present hard sealing butterfly valve is also called flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline medium.

Chinese utility model with the authorized bulletin number of CN2498416Y discloses an automatic compensation bidirectional hard seal butterfly valve, including the valve body, establish the disk seat in the valve body and wear the valve plate that is equipped with the valve rod on it with disk seat matched with, the characteristic is: the section of the valve seat is L-shaped, the valve seat is directly installed at one port of the valve body through a fixing piece, an adjusting gasket is additionally arranged between the valve seat and the valve body, the sealing surface of the valve plate is of a spherical surface structure, the inner ring end of the valve seat and the sealing ring surface of the valve plate form a sealing pair, and the spherical center of the valve plate is offset to one side of the central line of the valve seat. On the basis of absorbing the technical experience of metal butterfly valves at home and abroad, the valve is optimized in main sealing structure, the form that an eccentric surface is tangent to an inner hole of a cylinder is adopted, a sealing surface of a valve plate and a valve seat form a wedge-shaped structure, and a sealing pair can automatically compensate, so that the sealing performance and the opening and closing functions are guaranteed and improved, and new sealing can be realized by increasing and decreasing adjusting gaskets. The product also has the advantages of simple and reasonable structure, good sealing effect, small rotating torque, long service life and convenient maintenance.

However, in the actual use process of the valve body, due to the fact that the valve plate and the valve body are in spherical sealing, the sealing end face on the valve body is easily abraded due to the fact that impurities exist between the surfaces, in contact with the valve plate, of the valve body, and therefore the sealing end face is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a butterfly valve body has the wearing and tearing that have reduced the spherical sealing end face of valve body to the life's of valve body effect has been promoted to a certain extent.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a butterfly valve body, includes the valve body and installs in the sealing member of valve body lateral wall, sealed recess has been seted up to the lateral wall of sealing member, the lateral wall of sealed recess is provided with flexible sealing pad.

Through adopting above-mentioned technical scheme, lateral wall at the valve body sets up the sealing member, thereby make the valve body and the valve plate between after the lid closes, can seal through flexible sealing gasket, when the valve plate is closed, impurity that is located the fluid can compress tightly impurity on sealing gasket through the valve plate, make impurity embedding flexible sealing gasket in, realize the location to impurity, thereby make impurity can not cause wearing and tearing to the normal seal of valve plate and the sealed terminal surface of valve plate, and after the valve plate is opened, impurity continues the forward motion under the drive in the water, thereby further reduce impurity and valve body, the friction between the valve plate, wearing and tearing between valve plate and the valve body have been reduced to a certain extent, thereby the life of valve body has been improved to a certain extent.

The utility model discloses further set up to: and a positioning ball is embedded in the side wall of the flexible sealing gasket.

Through adopting above-mentioned technical scheme, set up the location ball at the lateral wall of flexible sealing gasket, and set up in the positioning groove that the location ball corresponds each other on the valve plate, location ball embedding positioning groove, make and fix a position through the location ball between valve plate and the positioning groove, made things convenient for the location between valve plate and the valve body, and carry out the pivoted in-process between valve plate and the valve body, can make the flexible sealing gasket who is located around the ball compressed through the location ball, can not produce the friction with between the valve plate, thereby the wearing and tearing of flexible sealing gasket have been reduced, the life of valve body has further been promoted.

The utility model discloses further set up to: fixed connection between flexible sealing pad and the sealing member, can dismantle between sealing member and the valve body and be connected, the sealing member orientation one side of valve body is provided with the joint ring, the joint recess that supplies joint ring joint is seted up to the lateral wall of valve body.

Through adopting above-mentioned technical scheme, with fixed connection between flexible sealing pad and the sealing member to with demountable installation between sealing member and the valve body, the opening width of joint recess is greater than the width that the joint encircles, thereby makes the joint encircle and conveniently change flexible sealing pad after flexible sealing pad takes place wearing and tearing.

The utility model discloses further set up to: the top and the bottom of joint ring all are provided with the direction inclined plane, the lateral wall of joint recess is provided with the location inclined plane with the laminating of direction inclined plane.

Through adopting above-mentioned technical scheme, all set up the direction chute at the top and the bottom of joint ring to the installation between joint ring and the joint recess has been made things convenient for.

The utility model discloses further set up to: the lateral wall circumference interval of valve body is provided with a plurality of locating levers, the lateral wall of locating lever is provided with the holding ring, the lateral wall of holding ring be provided with the lateral wall laminating of valve body, a plurality of confessions have been seted up on the joint ring the positioning hole that the locating lever passed, the one end of locating lever is run through valve body and positioning hole, the opposite side of locating lever is fixed through the bolt.

Through adopting above-mentioned technical scheme, set up a plurality of locating levers at the lateral wall circumference interval of valve body for the valve body can fix a position through locating lever and bolt, has reduced the probability that takes place to become flexible between valve body and the holding ring.

The utility model discloses further set up to: one side of the valve body, which is close to the bolt, is provided with a positioning groove for embedding the bolt head, and a rubber pad is arranged on the surface of the positioning groove and is tightly pressed with the bolt.

Through adopting above-mentioned technical scheme, through setting up positioning groove in one side that the valve body is close to the bolt to make the bolt head can imbed in the positioning groove, reduced the probability that takes place to interfere between bolt and the external environment, and through setting up the rubber pad on positioning groove surface, reduced the wearing and tearing between bolt and the valve body, and reduced the probability that takes place to loosen to a certain extent between bolt and the valve body.

The utility model discloses further set up to: one side of the clamping ring, which faces the positioning through hole, is provided with a positioning flange extending towards the positioning through hole, and the positioning flange is tightly pressed against the inner wall of the positioning through hole.

Through adopting above-mentioned technical scheme, set up the location turn-ups in joint ring one side towards positioning hole to when making the locating lever insert, can realize through the location turn-ups to the joint ring and the locating lever between sealed.

The utility model discloses further set up to: the locating flange faces one side of the locating ring and is provided with an installation inclined surface, the locating through hole is a stepped hole, the side wall of the locating rod is attached to the side wall of the locating through hole, the top of the locating through hole is provided with a limiting inclined surface, and the side wall of the locating rod is provided with a limiting inclined surface.

Through adopting above-mentioned technical scheme, set up positioning hole into the shoulder hole to make the location turn-ups on the joint ring take place to warp after receiving the frictional force that comes from on the locating lever, make the location turn-ups can be at the location turn-ups

To sum up, the utility model discloses a beneficial technological effect does:

1. the flexible sealing gasket is arranged, so that the abrasion of the spherical sealing end surface of the valve body is reduced, and the service life of the valve body is prolonged to a certain extent;

2. through setting up the location turn-ups, have promoted the frictional force between locating lever and the joint ring, and reduced the effect of the vibrations between locating lever and the joint ring.

Drawings

Fig. 1 is a schematic sectional structure of the present invention.

Fig. 2 is a schematic structural view of a portion a in fig. 1.

Fig. 3 is a schematic cross-sectional view of the snap ring when not pressed by the retainer rod.

In the figure, 1, a valve body; 11. clamping the groove; 111. positioning the inclined plane; 12. positioning a rod; 121. a positioning ring; 13. a positioning groove; 131. a rubber pad; 2. a seal member; 21. sealing the groove; 22. a snap ring; 221. a guide slope; 222. positioning the through hole; 223. positioning the flanging; 224. installing an inclined plane; 225. a limiting inclined plane; 3. a flexible gasket; 31. and positioning the ball.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a butterfly valve body comprises a valve body 1 and a sealing member 2 mounted on a side wall of the valve body 1. The sealing member 2 is detachably connected with the valve body 1.

Referring to fig. 1 and 2, a clamping groove 11 is formed in a side wall of the valve body 1, and a positioning inclined plane 111 is arranged at an end of the clamping groove 11. A plurality of positioning rods 12 are circumferentially arranged on the side wall of the valve body 1 at intervals, positioning rings 121 are arranged on the side walls of the positioning rods 12, the side walls of the positioning rings 121 are attached to the side wall of the valve body 1, positioning grooves 13 are formed in one side of the valve body 1, and rubber pads 131 are arranged on the surfaces of the positioning grooves 13.

Sealing groove 21 has been seted up to the lateral wall of sealing member 2, and sealing groove 21's lateral wall is provided with flexible sealed 3, and flexible sealed 3 lateral wall embedding has location ball 31, through pasting agent fixed connection between flexible sealed 3 and the sealing member 2. One side of sealing member 2 towards valve body 1 is provided with joint ring 22, and joint ring 22's top and bottom all are provided with direction inclined plane 221, and location inclined plane 111 and the laminating of direction inclined plane 221. In this embodiment, the opening width of the clamping groove 11 is greater than the width of the clamping ring 22, so that the clamping ring 22 can be directly clamped into the clamping groove 11 in an interference manner.

Referring to fig. 2 and 3, the snap ring 22 is provided with a plurality of positioning through holes 222 for the positioning rods 12 to pass through, one side of the snap ring 22 facing the positioning through holes 222 is provided with positioning flanges 223 extending towards the positioning through holes 222, and the positioning flanges 223 are pressed against the inner walls of the positioning through holes 222. One end of the positioning rod 12 penetrates the valve body 1 and the positioning through hole 222, and the other end of the positioning rod 12 is fixed by a bolt. The bolt head on the bolt is embedded into the positioning groove 13, and the rubber pad 131 positioned at the top of the positioning groove 13 is tightly pressed with the bolt.

One side of the positioning flange 223 facing the positioning ring 121 is provided with an installation inclined surface 224, the positioning through hole 222 is a stepped hole, the side wall of the positioning through hole 222 is provided with a limiting inclined surface 225, the side wall of the positioning rod 12 is attached to the side wall of the positioning through hole 222, and the side wall of the positioning rod 12 is attached to the side wall of the positioning rod 12. After the positioning rod 12 is inserted from the positioning through hole 222, the positioning rod is guided through the installation inclined surface 224, meanwhile, the whole positioning flanging 223 is driven to move downwards through friction force between the positioning rod 12 and the positioning flanging 223, so that the positioning flanging 223 and the limiting inclined surface 225 are pressed tightly, the positioning rod 12 is fixed through a bolt, and sealing between the positioning rod 12 and the positioning flanging 223 is realized.

The use principle of the embodiment is as follows: set up sealing member 2 at the lateral wall of valve body 1, thereby make valve body 1 and the valve plate between after the lid closes, can seal through flexible sealing gasket 3, when the valve plate was closed, the impurity that is located the fluid can compress tightly impurity on the sealing gasket through the valve plate, make impurity embedding flexible sealing gasket 3 in, the realization is to the location of impurity, thereby make impurity can not lead to the fact wearing and tearing to the normal seal of valve plate and the sealed terminal surface of valve plate, and after the valve plate was opened, impurity continues the forward motion under the drive in the water, thereby further reduce impurity and valve body 1, the friction between the valve plate, wearing and tearing between valve plate and the valve body 1 have been reduced to a certain extent, thereby the life of valve body 1 has been improved to a certain extent.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a butterfly valve body, includes valve body (1), its characterized in that: the valve body is characterized by further comprising a sealing element (2) arranged on the side wall of the valve body (1), a sealing groove (21) is formed in the side wall of the sealing element (2), and a flexible sealing gasket (3) is arranged on the side wall of the sealing groove (21).

2. A butterfly valve body in accordance with claim 1, wherein: and a positioning ball (31) is embedded in the side wall of the flexible sealing gasket (3).

3. A butterfly valve body in accordance with claim 2, wherein: fixed connection between flexible seal pad (3) and sealing member (2), can dismantle between sealing member (2) and the valve body (1) and be connected, sealing member (2) orientation one side of valve body (1) is provided with joint ring (22), joint recess (11) that supply joint ring (22) joint are seted up to the lateral wall of valve body (1).

4. A butterfly valve body in accordance with claim 3, wherein: the top and the bottom of joint ring (22) all are provided with direction inclined plane (221), the lateral wall of joint recess (11) is provided with location inclined plane (111) with direction inclined plane (221) laminating.

5. A butterfly valve body in accordance with claim 4, wherein: the lateral wall circumference interval of valve body (1) is provided with a plurality of locating levers (12), the lateral wall of locating lever (12) is provided with holding ring (121), the lateral wall of holding ring (121) be provided with the lateral wall laminating of valve body (1), a plurality of confessions have been seted up on joint ring (22) locating hole (222) that locating lever (12) passed, the one end of locating lever (12) is run through valve body (1) and locating hole (222), the opposite side of locating lever (12) is fixed through the bolt.

6. A butterfly valve body in accordance with claim 5, wherein: one side, close to the bolt, of the valve body (1) is provided with a positioning groove (13) for embedding the bolt head, a rubber pad (131) is arranged on the surface of the positioning groove (13), and the rubber pad (131) is tightly pressed with the bolt.

7. A butterfly valve body in accordance with claim 6, wherein: one side of the clamping ring (22) facing the positioning through hole (222) is provided with a positioning flanging (223) extending towards the positioning through hole (222), and the positioning flanging (223) is tightly pressed with the inner wall of the positioning through hole (222).

8. A butterfly valve body in accordance with claim 7, wherein: locating turn-ups (223) orientation one side of holding ring (121) is provided with installation inclined plane (224), positioning hole (222) are a ladder hole, the lateral wall of locating lever (12) and the lateral wall laminating of positioning hole (222), the top of positioning hole (222) is provided with spacing inclined plane (225), the lateral wall of locating lever (12).