CN212959902U

CN212959902U - High-performance low-resistance portable butterfly valve

Info

Publication number: CN212959902U
Application number: CN202021803671.9U
Authority: CN
Inventors: 洪裕杰; 洪佳音
Original assignee: China Butterfly Valve Manufacturing Jiangsu Co ltd
Current assignee: China Butterfly Valve Manufacturing Jiangsu Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-04-13
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a low light butterfly valve of resistance of high performance belongs to valve technical field. The high-performance low-resistance portable butterfly valve comprises an annular valve body, a butterfly plate, a valve rod, a lower end cover and a bracket; the bracket and the lower end cover are respectively and fixedly connected to the upper end and the lower end of the valve body; the butterfly plate is placed in the circular cavity of the annular valve body; the valve rod sequentially penetrates through the support, the annular valve body and the butterfly plate to be in contact with the lower end cover, and the valve rod is fixedly connected with the butterfly plate through a plurality of vertically arranged pins; the contact surfaces of the valve rod and the annular valve body are rotationally connected through a shaft sleeve; and the annular valve body is filled with filler at the contact part of the annular valve body and the bracket. The contact surface between the valve rod and the valve body of the high-performance low-resistance portable butterfly valve is sealed through the filler, and compared with the traditional sealing element seal, the structure is simple, the size of the butterfly valve is reduced, and the butterfly valve can be suitable for a pipeline with a small diameter.

Description

High-performance low-resistance portable butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to light butterfly valve of low resistance of high performance.

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 to control the flow of various types of fluids such as air, water, sewage, steam, soft/hard particles, slurries, 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.

The traditional butterfly valve needs to be sealed by a sealing element between the valve rod and the valve body, and the butterfly valve after the sealing element is installed is large in size and difficult to use in a pipeline with a small diameter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low light butterfly valve of resistance of high performance to solve the butterfly valve volume that traditional practical sealing member was sealed and all great, be difficult to the problem of using in the less pipeline of diameter.

In order to solve the technical problem, the utility model provides a high-performance low-resistance portable butterfly valve, which comprises an annular valve body, a butterfly plate, a valve rod, a lower end cover and a bracket; the bracket and the lower end cover are respectively and fixedly connected to the upper end and the lower end of the valve body; the butterfly plate is placed in the circular cavity of the annular valve body; the valve rod sequentially penetrates through the support, the annular valve body and the butterfly plate to be in contact with the lower end cover, and the valve rod is fixedly connected with the butterfly plate through a plurality of vertically arranged pins; the contact surfaces of the valve rod and the annular valve body are rotationally connected through a shaft sleeve; and the annular valve body is filled with filler at the contact part of the annular valve body and the bracket.

Optionally, the edge of the butterfly plate is fixedly connected with an annular sealing ring through a pressing plate, and the butterfly plate is connected with the inner ring of the annular valve body in a sealing mode through the annular sealing ring.

Optionally, the pressing plate is an annular pressing plate and is fixedly connected with the butterfly plate through a plurality of bolts.

Optionally, the number of the shaft sleeves is two, and the two shaft sleeves are respectively located on two contact surfaces of the valve rod and the annular valve body.

Optionally, the packing is in contact with the shaft sleeve to form a seal.

Optionally, the end of the shaft sleeve close to the lower end cover is connected in a sealing manner through a sealing ring.

The utility model provides a high-performance low-resistance portable butterfly valve, which comprises an annular valve body, a butterfly plate, a valve rod, a lower end cover and a bracket; the bracket and the lower end cover are respectively and fixedly connected to the upper end and the lower end of the valve body; the butterfly plate is placed in the circular cavity of the annular valve body; the valve rod sequentially penetrates through the support, the annular valve body and the butterfly plate to be in contact with the lower end cover, and the valve rod is fixedly connected with the butterfly plate through a plurality of vertically arranged pins; the contact surfaces of the valve rod and the annular valve body are rotationally connected through a shaft sleeve; and the annular valve body is filled with filler at the contact part of the annular valve body and the bracket. The contact surface between the valve rod and the valve body of the high-performance low-resistance portable butterfly valve is sealed through the filler, and compared with the traditional sealing element seal, the structure is simple, the size of the butterfly valve is reduced, and the butterfly valve can be suitable for a pipeline with a small diameter.

Drawings

FIG. 1 is a front view of a high performance, low resistance, lightweight butterfly valve provided by the present invention;

FIG. 2 is a side cross-sectional view of a high performance, low resistance, lightweight butterfly valve provided by the present invention;

fig. 3 is the utility model provides a high performance low resistance light butterfly valve ring seal's mounting structure sketch map.

Detailed Description

The present invention provides a high-performance low-resistance portable butterfly valve, which is described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example one

The utility model provides a high-performance low-resistance portable butterfly valve, the structure of which is shown in figure 1 and figure 2, comprising an annular valve body 1, a butterfly plate 2, a valve rod 3, a lower end cover 4 and a bracket 5; the bracket 5 and the lower end cover 4 are respectively fixedly connected to the upper end and the lower end of the valve body 1; the butterfly plate 2 is placed in a circular cavity of the annular valve body 1; the valve rod 3 sequentially penetrates through the support 5, the annular valve body 1 and the butterfly plate 2 to be in contact with the lower end cover 4, the valve rod 3 is fixedly connected with the butterfly plate 2 through a plurality of vertically arranged pins 7, and the valve rod 3 drives the butterfly plate 2 to rotate in the annular valve body 1; the contact surfaces of the valve rod 3 and the annular valve body 1 are rotationally connected through shaft sleeves 6, and two shaft sleeves 6 are arranged and are respectively positioned on the two contact surfaces of the valve rod 3 and the annular valve body 1; the friction between the valve rod 3 and the annular valve body 1 is reduced, and the service life of the butterfly valve is prolonged; the annular valve body 1 is filled with filler 8 at the contact part of the annular valve body 1 and the support 5, and the filler 8 is positioned between the shaft sleeve 6 and the support 5 to replace a sealing element to achieve a sealing effect, so that the high-performance low-resistance portable butterfly valve is smaller and more portable and is suitable for small-caliber pipelines; the end of the shaft sleeve 6 close to the lower end cover 4 is connected in a sealing mode through a sealing ring.

Specifically, as shown in fig. 3, the edge of the butterfly plate 2 is fixedly connected with an annular seal ring 9 through a pressure plate 10, and the butterfly plate 2 is connected with the inner ring of the annular valve body 1 in a sealing manner through the annular seal ring 9; the pressing plate 10 is an annular pressing plate and is fixedly connected with the butterfly plate 2 through a plurality of bolts.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. A high-performance low-resistance portable butterfly valve is characterized by comprising an annular valve body (1), a butterfly plate (2), a valve rod (3), a lower end cover (4) and a support (5);

the bracket (5) and the lower end cover (4) are respectively and fixedly connected to the upper end and the lower end of the valve body (1);

the butterfly plate (2) is placed in a circular cavity of the annular valve body (1);

the valve rod (3) sequentially penetrates through the support (5), the annular valve body (1) and the butterfly plate (2) to be in contact with the lower end cover (4), and the valve rod (3) is fixedly connected with the butterfly plate (2) through a plurality of vertically arranged pins (7);

the contact surfaces of the valve rod (3) and the annular valve body (1) are rotationally connected through a shaft sleeve (6);

the annular valve body (1) is in contact with the support (5), and a filler (8) is filled in the annular valve body (1).

2. A high performance low resistance portable butterfly valve according to claim 1, characterized in that the edge of said butterfly plate (2) is fixedly connected with an annular sealing ring (9) by a pressure plate (10), said butterfly plate (2) is connected with the inner ring of said annular valve body (1) by said annular sealing ring (9) in a sealing manner.

3. A high performance low drag portable butterfly valve according to claim 2, wherein said pressure plate (10) is an annular pressure plate, fixedly connected to said butterfly plate (2) by means of a plurality of bolts.

4. A high-performance low-resistance lightweight butterfly valve according to claim 1, characterized in that said bushing (6) is provided in two, one at each of the two contact surfaces of said stem (3) and said annular body (1).

5. A high performance low drag portable butterfly valve according to claim 4, wherein said packing (8) is in contact with said sleeve (6) to form a seal.

6. A high performance low drag portable butterfly valve according to claim 4, wherein the end of said sleeve (6) near said lower end cap (4) is sealingly connected by a sealing ring.