CN215806361U

CN215806361U - Double semi-axis middle line type soft seal butterfly valve of wafer formula

Info

Publication number: CN215806361U
Application number: CN202121901305.1U
Authority: CN
Inventors: 李兴泉; 张新芝
Original assignee: Ningjin Yahua Industry Co ltd
Current assignee: Shandong Yahua Industrial Equipment Co ltd
Priority date: 2021-08-14
Filing date: 2021-08-14
Publication date: 2022-02-11
Anticipated expiration: 2031-08-14

Abstract

The utility model discloses a wafer-type double-half-shaft centerline soft-sealing butterfly valve, which comprises a butterfly valve body. Mounting brackets are respectively welded and installed on both sides of the upper and lower ends of the butterfly valve body. The installation hole, the top of the butterfly valve body is open and connected with a first installation pipe, the bottom end of the butterfly valve body is open and connected with a second installation pipe, a sealing plate is movably installed inside the butterfly valve body, and the sealing The upper and lower ends of the plate are respectively slotted and embedded with fixed pipes. The outer sides of the two sealing plates are fixedly installed with sealing rings. The outer sides of the sealing rings are in contact with the inner side of the butterfly valve body but are not fixedly connected, and the two fixed pipes are away from each other. One side is fixedly connected with the inner side of the sealing ring. The utility model solves the problem that the sealing performance of the opening and closing joints decreases under the condition of long-term use.

Description

Double semi-axis middle line type soft seal butterfly valve of wafer formula

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a double-clamp type double-half-shaft middle-line type soft sealing butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

However, in the butterfly valve used at present, the connecting structure for closing is strong in rigidity but insufficient in toughness, and is easy to deform in the case of long-term use, and thus the opening and closing are affected, and meanwhile, because the connecting structure for closing is often designed in an integrated structure, the connecting structure is worn in the case of long-term use, so that the sealing performance is reduced, and the cost is high when the connecting structure is replaced, so that a double-clamp half-shaft middle-line type soft seal butterfly valve is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-clamp type double-half-shaft middle-line soft seal butterfly valve which has the advantages of improving the stability of a closing structure, reducing the reduction of sealing performance caused by deformation and abrasion and solving the problem of the reduction of sealing performance at a opening and closing connection part under the condition of long-term use.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a soft butterfly valve that seals of double semi-axis line type of wafer formula, includes the butterfly valve body, first installation pipe is installed to butterfly valve body top trompil and intercommunication, second installation pipe is installed to butterfly valve body bottom trompil and intercommunication, the inside movable mounting of butterfly valve body has the closing plate, fixed pipe, two are installed in fluting and embedding respectively at both ends about the closing plate fixed mounting has the sealing washer in the closing plate outside.

Preferably, the mounting frames are respectively welded to the two sides of the upper end and the lower end of the butterfly valve body, and the mounting holes are formed in the front surfaces of the four mounting frames.

Preferably, the inside movable mounting of first installation tube has first pivot, and the embedding of first pivot bottom is installed inside the fixed intraductal on closing plate top, and the cover is equipped with the second bearing in the first pivot, and the embedding of second bearing is installed inside the butterfly valve body of first installation pipe below, and first installation outside of tubes wall top fixed mounting has the collar, and the collar upper surface is annular array and has seted up the screw.

Preferably, a second rotating shaft is movably mounted in the second mounting pipe, the top end of the second rotating shaft is embedded in a fixing pipe at the bottom end of the sealing plate, a first bearing is sleeved on the second rotating shaft, a first bearing is mounted on the second rotating shaft in a penetrating mode, and the first bearing is embedded in a butterfly valve body above the second mounting pipe.

Preferably, the outer side of the sealing ring is in contact with the inner side of the butterfly valve body but is not fixedly connected with the inner side of the butterfly valve body.

Preferably, two the fixed pipe deviates from one side all with sealing washer inboard fixed connection mutually.

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

according to the butterfly valve, the sealing plate is arranged, the sealing ring is fixedly arranged on the outer side of the sealing plate, and the sealing ring is fixedly connected with the fixed pipe, so that when the butterfly valve is used, the first rotating shaft rotates and drives the sealing ring to rotate along with the first rotating shaft, meanwhile, the second rotating shaft is arranged in the butterfly valve body through the first bearing, so that the sealing ring and the sealing plate can rotate more smoothly, and due to the fact that a split type structure design is adopted between the sealing plate and the sealing ring, the maintenance cost is reduced, and the effects of reducing the stability of a closed structure and the maintenance cost are achieved.

Drawings

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

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic side sectional view of the present invention.

In the figure: 1. a mounting frame; 2. a butterfly valve body; 3. a seal ring; 4. a first mounting tube; 5. a first rotating shaft; 6. a mounting ring; 7. a fixed tube; 8. a sealing plate; 9. a second mounting tube; 10. a screw hole; 11. a second rotating shaft; 12. a first bearing; 13. a second bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, an embodiment of the present invention includes: the utility model provides a soft sealed butterfly valve of double half axle line type of wafer formula, includes butterfly valve body 2, and the both sides at butterfly valve body 2 upper and lower both ends are welded respectively and are installed mounting bracket 1, and four mounting bracket 1 openly have all seted up the mounting hole. 2 top trompils of butterfly valve body and intercommunication install first installation pipe 4, the inside movable mounting of first installation pipe 4 has

first pivot

5, 5 bottom embeddings of first pivot are installed inside the fixed pipe 7 on 8 tops of closing plate, the cover is equipped with second bearing 13 on the

first pivot

5, 13 embeddings of second bearing are installed inside 2 butterfly valve bodies of first installation pipe 4 below, 4 outer wall top fixed mounting of first installation pipe have collar 6, the screw 10 has been seted up to collar 6 upper surface for annular array. 2 bottom trompils of butterfly valve body and intercommunication are installed second installation pipe 9, and second installation pipe 9 is inside or move and install

second pivot

11, and 11 tops imbeds inside the fixed 7 of tubes of 8 bottoms of closing plate are installed, and the cover is equipped with first bearing 12 on the second pivot 11, and the first bearing 12 is installed to leading to on the second pivot 11, and first bearing 12 imbeds inside the butterfly valve body 2 of installing in second installation pipe 9 top.

The inside movable mounting of butterfly valve body 2 has closing plate 8, and both ends are slotted respectively and the embedding is installed fixed pipe 7 about closing plate 8, and two closing plate 8 outside fixed mounting have sealing washer 3. The outer side of the sealing ring 3 is contacted with the inner side of the butterfly valve body 2 but is not fixedly connected with the inner side of the butterfly valve body. Two fixed pipe 7 one side of keeping away from each other all with the inboard fixed connection of sealing washer 3. Cross setting up closing plate 8 and at closing plate 8 outside fixed mounting sealing washer 3, and with sealing washer 3 and fixed pipe 7 fixed connection, thereby when using, first pivot 5 rotates and drives sealing washer 3 and rotate thereupon, and simultaneously, because second pivot 11 has been installed through first bearing 12 at 2 internally mounted butterfly valve bodies, thereby make the rotation of sealing washer 3 and closing plate 8 more smooth and easy, because adopted split type structural design between closing plate 8 and the sealing washer 3, thereby cost reduction when making the maintenance, closed structure stability has been reached and maintenance cost's effect has been reduced.

The working principle is as follows: when the butterfly valve is used, the butterfly valve body 2 is fixedly arranged at a pipeline joint through the mounting frame 1, the transmission structure is fixedly arranged at the top end of the first mounting pipe 4 through the mounting ring 6, and meanwhile, the transmission structure is in transmission connection with the first rotating shaft 5 and rotates through the transmission structure, so that the first rotating shaft 5 rotates and drives the sealing ring 3 and the sealing plate 8 to rotate on the inner side of the butterfly valve body 2, and the butterfly valve body 2 is opened and closed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. The utility model provides a soft sealed butterfly valve of double half axle neutral line type of wafer formula, includes butterfly valve body (2), its characterized in that: first installation pipe (4) are installed to butterfly valve body (2) top trompil and intercommunication, second installation pipe (9) are installed to butterfly valve body (2) bottom trompil and intercommunication, the inside movable mounting of butterfly valve body (2) has closing plate (8), fixed pipe (7), two are installed in fluting and embedding respectively at both ends about closing plate (8) sealing washer (8) outside fixed mounting has sealing washer (3).

2. The wafer-type double-half-shaft middle-line type soft seal butterfly valve according to claim 1, characterized in that: the butterfly valve body (2) is welded respectively in the both sides at both ends about and installs mounting bracket (1), and the mounting hole has all been seted up in four mounting bracket (1) fronts.

3. The wafer-type double-half-shaft middle-line type soft seal butterfly valve according to claim 1, characterized in that: the inside movable mounting of first installation pipe (4) has first pivot (5), and inside fixed pipe (7) on closing plate (8) top were installed in the embedding of first pivot (5) bottom, the cover was equipped with second bearing (13) on first pivot (5), and inside butterfly valve body (2) of second bearing (13) embedding installation below first installation pipe (4), first installation pipe (4) outer wall top fixed mounting had mounting ring (6), and screw (10) have been seted up to mounting ring (6) upper surface annular array.

4. The wafer-type double-half-shaft middle-line type soft seal butterfly valve according to claim 1, characterized in that: inside or the movable installation of second installation pipe (9) have second pivot (11), and inside fixed pipe (7) of installing in closing plate (8) bottom in the embedding of second pivot (11) top, the cover is equipped with first bearing (12) on second pivot (11), and first bearing (12) are installed to second pivot (11) expert, and first bearing (12) embedding is installed inside butterfly valve body (2) above second installation pipe (9).

5. The wafer-type double-half-shaft middle-line type soft seal butterfly valve according to claim 1, characterized in that: the outer side of the sealing ring (3) is in contact with the inner side of the butterfly valve body (2) but is not fixedly connected with the inner side of the butterfly valve body.

6. The wafer-type double-half-shaft middle-line type soft seal butterfly valve according to claim 1, characterized in that: and one sides of the two fixing pipes (7) which are opposite to each other are fixedly connected with the inner side of the sealing ring (3).