CN210566308U

CN210566308U - Prevent that extrusion central line disk valve is with disk seat

Info

Publication number: CN210566308U
Application number: CN201921313335.3U
Authority: CN
Inventors: 牛桂风
Original assignee: Tianjin Yuanjuwei Valve Manufacturing Co Ltd
Current assignee: Tianjin Yuanjuwei Valve Manufacturing Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-19
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a valve seat for anti-extrusion center line butterfly valve, the side surface of the valve seat main body is fixedly connected with a backing plate through a screw nut, the surface of the backing plate is provided with a fixed hole A, one side of the backing plate is provided with a perforation strip, the perforation strip is integrated with the valve seat main body, the two sides of the perforation strip are fixedly connected with a fixed strip, the inner side of the perforation strip is fixedly connected with a buffer rubber strip, the inner part of the buffer rubber strip is fixedly connected with a plurality of springs, and the position of the valve seat main body opposite to the fixed hole A is provided with a fixed hole B; has the advantages that: valve baffle can slowly be close to the cushion rubber strip when rotating, and at this moment by the effect of spring, the cushion rubber strip can be slow extrusion for the valve baffle passes through, and same principle when reseing, and the effect through the cushion rubber strip has first been arrived sealed effect together, prevents that the foreign matter from entering into the inside of valve, and the second prevents that the valve baffle from causing the extrusion when rotating.

Description

Prevent that extrusion central line disk valve is with disk seat

Technical Field

The utility model relates to a disk seat technical field particularly, relates to a prevent extrudeing disk seat for central line butterfly valve.

Background

At present, a center line butterfly valve is used as a component for realizing the on-off and flow control of a pipeline system, and is widely applied to various fields such as petroleum, chemical engineering, metallurgy, water and electricity. In the known butterfly valve technology, a sealing structure is often adopted as a sealing form, and the sealing material is rubber, polytetrafluoroethylene or the like. Due to the limitation of structural characteristics, the high-temperature-resistant, high-pressure-resistant, corrosion-resistant and abrasion-resistant industries are not suitable. The existing advanced butterfly valve is a three-eccentric metal hard sealing butterfly valve, a valve body and a valve seat are connected components, and a surface layer of the valve seat is made of a surfacing welding temperature-resistant and corrosion-resistant alloy material. Compared with the traditional butterfly valve, the butterfly valve has the advantages of high temperature resistance, light operation, no friction when opened and closed, compensation sealing along with the increase of the torque of the transmission mechanism when closed, improved sealing performance and prolonged service life. The structure of the center line butterfly valve is characterized in that the axis of the valve rod, the center of the butterfly plate and the center of the body are in the same position. Simple structure and convenient manufacture. Common rubber-lined butterfly valves are of this type. The butterfly plate and the valve seat are always in the extruding and scraping states, so that the butterfly plate has large resistance distance and quick abrasion. In order to overcome extrusion and scraping and ensure sealing performance, the valve seat is basically made of elastic materials such as rubber or polytetrafluoroethylene.

At present, if foreign matters run into a valve seat when a central line butterfly valve on the market rotates, the valve can be extruded, and the central line butterfly valve can be seriously damaged.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent extrudeing disk seat for central line butterfly valve to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-extrusion central line disk seat for butterfly valve, includes disk seat main part, fixed screw hole, antiskid sheets, rubber slab and disk seat main part, the side surface of disk seat main part passes through screw nut fixedly connected with backing plate, the surface of backing plate is provided with fixed orifices A, one side of backing plate is provided with the perforation strip, the perforation strip with disk seat main part integrated into one piece, the both sides fixedly connected with fixed strip of perforation strip, the inboard fixedly connected with cushion rubber strip of perforation strip, a plurality of springs of inside fixedly connected with of cushion rubber strip, the disk seat main part with the relative position of fixed orifices A is provided with fixed orifices B, fixed orifices B with disk seat main part integrated into one piece.

Preferably, the fixing hole a is integrally formed with the valve seat main body and the shim plate.

Preferably, the shape of the cushion rubber strip is triangular.

Preferably, one side of the buffer rubber strip is provided with an anti-slip sheet, and the anti-slip sheet is fixedly connected with the inner side surface of the valve seat main body through a screw nut.

Preferably, the edge of the fixing hole B is fixedly connected with a rubber plate.

Preferably, the other side surface of the backing plate is provided with an integrally formed fixing screw hole.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) when the valve is used, the valve baffle plate and the rotating shaft of the center line butterfly valve are fixed through the action of the fixing hole A and the fixing hole B, abrasion caused during rotation can be prevented through the action of the base plate, and meanwhile abrasion caused during rotation is also prevented through the action of the rubber plate;

(2) the valve baffle can slowly be close to the cushion rubber strip when rotating, and at this moment, by the effect of spring, the cushion rubber strip can slowly extrude for the valve baffle passes through, and same principle when reseing, and sealed effect has been arrived together through the effect of cushion rubber strip, prevents that the foreign matter from entering into the inside of valve, and the second prevents that the valve baffle from causing the extrusion when rotating.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a valve seat for an anti-extrusion center line butterfly valve according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a valve seat for an anti-extrusion center line butterfly valve according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a perforated strip in a valve seat for an anti-extrusion center line butterfly valve according to an embodiment of the present invention.

Reference numerals: 1. a base plate; 2. a fixing hole A; 3. anti-slip sheets; 4. a valve seat body; 5. fixing screw holes; 6. buffering the rubber strip; 7. perforating the strips; 8. a fixing hole B; 9. a rubber plate; 10. a spring; 11. and (4) fixing the strip.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings:

please refer to fig. 1-3, according to the embodiment of the present invention, a valve seat for an anti-extrusion center line butterfly valve comprises a valve seat main body 4, a fixing screw hole 5, an anti-slip sheet 3, a rubber plate 9 and a valve seat main body 4, wherein a side surface of the valve seat main body 4 is fixedly connected with a backing plate 1 through a screw nut, the surface of the backing plate 1 is provided with a fixing hole a2, one side of the backing plate 1 is provided with a perforated strip 7, the perforated strip 7 and the valve seat main body 4 are integrally formed, two sides of the perforated strip 7 are fixedly connected with a fixing strip 11, an inner side of the perforated strip 7 is fixedly connected with a cushion rubber strip 6, the cushion rubber strip 6 is fixedly connected with a plurality of springs 10, a position of the valve seat main body 4 relative to the fixing hole a2 is provided with a fixing hole B8, and a fixing hole B8 and.

Through the above scheme of the utility model, when in use, the valve baffle and the rotating shaft of the center line butterfly valve are fixed through the action of the fixing hole A2 and the fixing hole B8, the abrasion caused during rotation can be prevented by the action of the backing plate 1, meanwhile, the abrasion caused during rotation can also be prevented by the action of the rubber plate 9, the valve baffle can be slowly close to the buffer rubber strip 6 during rotation, at the moment, the buffer rubber strip 6 can be slowly extruded by the action of the spring 10, so that the valve baffle can pass through, and the same principle is adopted during reset, the sealing effect is firstly achieved through the action of the buffer rubber strip 6, foreign matters are prevented from entering the interior of the valve, the valve baffle is prevented from being extruded during rotation, when the buffer rubber strip 6 is replaced, because the fixing strip 11 and the buffer rubber strip 6 are integrally formed, only the screw nut fixed on the fixing strip 11 needs to be dismounted, and then taking out the cushion rubber strip 6 through the perforated strip 7.

When specifically using, fixed orifices A2 with valve seat main part 4 backing plate 1 integrated into one piece, the shape of cushion rubber strip 6 is triangle-shaped, one side of cushion rubber strip 6 is provided with antiskid ribbed tile 3, antiskid ribbed tile 3 with the inboard surface of valve seat main part 4 passes through screw nut fixed connection, the edge fixedly connected with rubber slab 9 of fixed orifices B8, integrated into one piece's fixed screw hole 5 has been seted up on the opposite side surface of backing plate 1.

In conclusion, by means of the above technical solution of the present invention, when in use, the valve baffle of the center line butterfly valve is fixed with the rotating shaft through the fixing hole a2 and the fixing hole B8, the cushion plate 1 can prevent abrasion during rotation, and the rubber plate 9 also prevents abrasion during rotation, and the valve baffle can slowly approach the cushion rubber strip 6 during rotation, at this time, the cushion rubber strip 6 can be slowly extruded by the action of the spring 10, so that the valve baffle passes through, and the same principle is adopted during resetting, and the sealing function is firstly achieved through the action of the cushion rubber strip 6, so as to prevent foreign matters from entering the inside of the valve, and the valve baffle can be prevented from being extruded during rotation, and when replacing the cushion rubber strip 6, only the screw nut fixed on the fixing strip 11 needs to be dismounted because the fixing strip 11 and the cushion rubber strip 6 are integrally formed, and then taking out the cushion rubber strip 6 through the perforated strip 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The valve seat is characterized by comprising a valve seat main body (4), a fixed screw hole (5), an anti-slip sheet (3), a rubber plate (9) and a valve seat main body (4), wherein the side surface of the valve seat main body (4) is fixedly connected with a base plate (1) through a screw nut, the surface of the base plate (1) is provided with a fixed hole A (2), one side of the base plate (1) is provided with a perforated strip (7), the perforated strip (7) and the valve seat main body (4) are integrally formed, two sides of the perforated strip (7) are fixedly connected with fixing strips (11), the inner side of the perforated strip (7) is fixedly connected with a buffer rubber strip (6), the inner part of the buffer rubber strip (6) is fixedly connected with a plurality of springs (10), and a fixed hole B (8) is arranged at the position of the valve seat main body (4) opposite to the fixed hole A (2), the fixing hole B (8) and the valve seat main body (4) are integrally formed.

2. The valve seat of claim 1, wherein the fixing hole a (2) is integrally formed with the valve seat body (4) and the shim plate (1).

3. The valve seat for the butterfly valve with the anti-extrusion center line as claimed in claim 1, wherein the shape of the buffer rubber strip (6) is triangular.

4. The valve seat for the anti-extrusion center line butterfly valve according to claim 1, wherein an anti-slip sheet (3) is arranged on one side of the buffer rubber strip (6), and the anti-slip sheet (3) is fixedly connected with the inner side surface of the valve seat body (4) through a screw and a nut.

5. The valve seat of claim 1, wherein a rubber plate (9) is fixedly connected to the edge of the fixing hole B (8).

6. The valve seat for the butterfly valve with the anti-extrusion center line as claimed in claim 1, wherein the other side surface of the base plate (1) is provided with an integrally formed fixing screw hole (5).