CN211082882U

CN211082882U - Center line rubber-lined butterfly valve capable of being directly installed at tail end of pipeline

Info

Publication number: CN211082882U
Application number: CN201922393492.6U
Authority: CN
Inventors: 石敬永; 沈克勤
Original assignee: Suzhou Lirui Fluid Control Equipment Co ltd
Current assignee: Suzhou Lirui Fluid Control Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-07-24
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a can direct mount at terminal central line rubber lining butterfly valve of pipeline, including valve body, set screw, lower valve shaft, O type circle, hard back disk seat, butterfly plate, antifriction wipe the axle sleeve, go up valve shaft, screw and last valve shaft spacer, hard back disk seat is fixed in the valve body passageway, be equipped with the lug on the valve body, the butterfly plate is located the centre of valve body and closely cooperates with the disk seat, the antifriction is wiped in the shaft hole that the axle sleeve is fixed in the valve body, go up in the shaft hole that the valve shaft runs through antifriction and wipe axle sleeve and valve body and be fixed in the butterfly plate, be equipped with the cubic in the upper shaft hole of butterfly plate, it is connected with cubic torque transmission to go up the valve shaft. Through the transformation to the valve body structure for the valve can be applicable to unilateral flange fastening connection, and need not two flange butt clamps and connect, thereby makes this butterfly valve can be used as pipeline end valve, or uses the butterfly valve as interim pipeline end valve, so that support the periodic installation requirement, so that reduce engineering cost, promote social saving, energy-concerving and environment-protective.

Description

Center line rubber-lined butterfly valve capable of being directly installed at tail end of pipeline

Technical Field

The utility model relates to a butterfly valve equipment technical field specifically is a can direct mount at terminal central line rubber lining butterfly valve of pipeline.

Background

Traditional lining rubber butterfly valve is because hard back disk seat need distribute between two parties, must be by two flange clamp valve body both sides during the installation realize the pipeline installation, and unable direct mount is at water supply and drainage pipe's end, and people often have to adopt products such as ball valve or gate valve to install at the pipeline end. However, ball valves or gate valves are expensive to manufacture.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a can direct mount at terminal central line rubber-lined butterfly valve of pipeline, must realize the piping erection by two flange clamp valve body both sides when having solved the valve body installation, and unable direct mount is at water supply and drainage pipeline's terminal problem.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a center line rubber-lined butterfly valve capable of being directly installed at the tail end of a pipeline comprises a valve body, a positioning screw, a lower valve shaft, an O-shaped ring, a hard backrest valve seat, a butterfly plate, an anti-friction shaft sleeve, an upper valve shaft, a screw and an upper valve shaft positioning piece, wherein the hard backrest valve seat is fixed in a valve body channel, and a lug is arranged on the valve body; the butterfly plate is located the centre of valve body and closely cooperates with the disk seat, antifriction axle sleeve is fixed in the shaft hole of valve body, go up the valve shaft and run through antifriction axle sleeve and valve body and be fixed in the shaft hole of butterfly plate, be equipped with the four directions in the upper shaft hole of butterfly plate, it is connected with four directions torque transmission to go up the valve shaft, go up the last flange fixed connection that the valve shaft spacer passes through screw and valve body, O type circle is fixed in down on the valve shaft, the valve shaft runs through the valve body and links up fixedly with the butterfly plate with hard back disk seat down, set screw and the side fixed connection of valve body bottom.

Preferably, the hard backrest valve seat is composed of a valve seat framework and valve seat rubber.

Preferably, one side of the valve body is provided with a positioning step, and the hard backrest valve seat is pressed into the valve body along the valve body channel on the other side.

Preferably, the upper valve shaft and the lower valve shaft are held on the same axis.

Preferably, the upper valve shaft is fixed on the valve body through an upper valve shaft positioning sheet, and the lower valve shaft is locked through a positioning screw on one side of the bottom of the valve body.

(III) advantageous effects

The utility model provides a can direct mount at terminal central line rubber lining butterfly valve of pipeline. The method has the following beneficial effects:

through the transformation to the valve body structure for the valve can be applicable to unilateral flange fastening connection, and need not two flange butt clamps and connect, thereby makes this butterfly valve can be used as pipeline end valve, or uses the butterfly valve as interim pipeline end valve, so that support the periodic installation requirement, so that reduce engineering cost, promote social saving, energy-concerving and environment-protective.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

FIG. 2 is a schematic view of the valve body structure of the present invention;

fig. 3 is an enlarged schematic view of the structure shown in fig. 2A according to the present invention.

In the figure, a valve body-1, a positioning screw-2, a lower valve shaft-3, an O-shaped ring-4, a hard backrest valve seat-5, a butterfly plate-6, an anti-friction shaft sleeve-7, an upper valve shaft-8, a screw-9, an upper valve shaft positioning sheet-10, a valve seat framework-11, a valve seat rubber-12 and a positioning step-13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: a center line rubber-lined butterfly valve capable of being directly installed at the tail end of a pipeline comprises a valve body 1, a positioning screw 2, a lower valve shaft 3, an O-shaped ring 4, a hard backrest valve seat 5, a butterfly plate 6, a friction reducing shaft sleeve 7, an upper valve shaft 8, a screw 9 and an upper valve shaft positioning piece 10, wherein the hard backrest valve seat 5 is fixed in a valve body channel, a lug is arranged on the valve body 1, the butterfly plate 6 is positioned in the middle of the valve body 1 and is tightly matched with the hard backrest valve seat 5, the friction reducing shaft sleeve 7 is fixed in a shaft hole of the valve body 1, the upper valve shaft 8 penetrates through the friction reducing shaft sleeve 7 and the valve body 1 and is fixed in a shaft hole of the butterfly plate 6, a square is arranged in an upper shaft hole of the butterfly plate 6, the upper valve shaft 8 is connected with square torque transmission, the upper valve shaft positioning piece 10 is fixedly connected with an upper flange of the valve body 1 through the screw 9, the O-shaped ring 4 is fixed on the lower valve shaft 3, the positioning screw 2 is fixedly connected with the side end of the bottom of the valve body 1.

The hard backrest valve seat 5 is composed of a valve seat framework 11 and valve seat rubber 12. The hard framework plays a shaping role, the rubber valve seat is ensured not to deform in the installation process, and the rubber valve seat cannot break down due to the displacement of the acting force of the butterfly plate in the opening or closing process of the valve.

One side of the valve body 1 is provided with a positioning step 13, and the hard backrest valve seat 5 is pressed into the valve body 1 along the valve body channel on the other side until contacting the positioning step 13. The valve seat can move to the left under the action of the right force, but can not move to the right under the action of the left force.

The upper valve shaft 8 and the lower valve shaft 3 are held on the same axis. The double-shaft design, the whole flying saucer type structure that adopts of butterfly plate reduces the butterfly plate thickness size by a wide margin, and greatly reduced valve flow resistance coefficient under the full open mode improves the whole ability of overflowing of valve.

The upper valve shaft 8 is fixed on the valve body 1 through an upper valve shaft positioning sheet 10, and the lower valve shaft 3 is locked through a positioning screw 2 on one side of the bottom of the valve body. Under the condition that the valve seat fails, the valve shaft cannot be ejected out by the water pressure in the valve body, and secondary accidents cannot occur under the condition that the valve seat fails.

The working principle is as follows: when the butterfly valve is installed as a tail end valve of a pipeline, the left side surface is tightly attached to the flange surface of the pipeline, the flange bolt is screwed into the threaded hole in the lug of the valve body, and the other end of the flange bolt is fixed on the flange of the pipeline through the nut. And the valve body is tightly pressed on the flange by uniformly screwing the flange bolts, so that the valve is installed. The end face of the valve seat protrudes out of the end face of the valve body, so that an additional pipeline flange gasket is not needed in the valve installation process, an anti-friction shaft sleeve is installed in an upper shaft hole of the valve body, the upper valve rod is prevented from contacting with the valve body, the rotating friction force of the upper valve shaft is reduced, the operating torque of the valve is reduced, only the rubber valve seat and the stainless steel butterfly plate are used as parts in the valve, which are in contact with media, the anti-corrosion performance is high, and the anti-friction valve is suitable.

The utility model discloses a valve body 1, set screw 2, lower valve shaft 3, O type circle 4, hard back disk seat 5, butterfly plate 6, antifriction axle sleeve 7, go up valve shaft 8, screw 9, go up valve shaft spacer 10, valve seat skeleton-11, parts such as valve seat rubber 12 and location step 13 are the parts that general standard spare or technical personnel in the field know, and its structure and principle all are this technical staff all can learn through the technical manual or learn through conventional experimental method, the utility model provides a problem be must realize the piping erection by two flange clamping valve body both sides during the valve body installation, and unable direct mount is at the terminal problem of giving drainage pipe. The utility model discloses a to the transformation of 1 structure of valve body for the valve can be applicable to unilateral flange fastening connection, and need not two flanges and connect to pressing from both sides, thereby makes this butterfly valve can be as the terminal valve of pipeline, or uses the butterfly valve as the terminal valve of interim pipeline, so that support the requirement of stage nature installation, so that reduce engineering cost, promote social saving, energy-concerving and environment-protective.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a can directly install at terminal central line rubber-lined butterfly valve of pipeline which characterized in that: comprises a valve body (1), a positioning screw (2), a lower valve shaft (3), an O-shaped ring (4), a hard backrest valve seat (5), a butterfly plate (6), a friction reducing shaft sleeve (7), an upper valve shaft (8), a screw (9) and an upper valve shaft positioning piece (10), wherein the hard backrest valve seat (5) is fixed in a valve body channel, a lug is arranged on the valve body (1), the butterfly plate (6) is positioned in the middle of the valve body (1) and is tightly matched with the hard backrest valve seat (5), the friction reducing shaft sleeve (7) is fixed in a shaft hole of the valve body (1), the upper valve shaft (8) penetrates through the friction reducing shaft sleeve (7) and the valve body (1) and is fixed in the shaft hole of the butterfly plate (6), a square is arranged in the shaft hole of the butterfly plate (6), the upper valve shaft (8) is connected with the square torque transmission, the upper valve shaft positioning piece (10) is fixedly connected with an upper flange of the valve body (1) through the, the O-shaped ring (4) is fixed on the lower valve shaft (3), the lower valve shaft (3) penetrates through the valve body (1) and the hard backrest valve seat (5) to be fixedly connected with the butterfly plate (6), and the positioning screw (2) is fixedly connected with the side end of the bottom of the valve body (1).

2. A center line rubber-lined butterfly valve as defined in claim 1, adapted to be mounted directly on an end of a pipe, comprising: the hard backrest valve seat (5) is composed of a valve seat framework (11) and valve seat rubber (12).

3. A center line rubber-lined butterfly valve as defined in claim 1, adapted to be mounted directly on an end of a pipe, comprising: one side of the valve body (1) is provided with a positioning step (13), and the hard backrest valve seat (5) is pressed into the valve body (1) along the valve body channel on the other side.

4. A center line rubber-lined butterfly valve as defined in claim 1, adapted to be mounted directly on an end of a pipe, comprising: the upper valve shaft (8) and the lower valve shaft (3) are maintained on the same axis.

5. A center line rubber-lined butterfly valve as defined in claim 1, adapted to be mounted directly on an end of a pipe, comprising: the upper valve shaft (8) is fixed on the valve body (1) through an upper valve shaft positioning sheet (10), and the lower valve shaft (3) is locked through a positioning screw (2) on one side of the bottom of the valve body.