CN213332414U

CN213332414U - Improved butterfly valve

Info

Publication number: CN213332414U
Application number: CN202021932856.XU
Authority: CN
Inventors: 庄超渊; 王智; 孙哲君
Original assignee: Mintai Fire Fighting Technology Co ltd
Current assignee: Fujian Mintai Fire Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-06-01
Anticipated expiration: 2030-09-07

Abstract

The utility model relates to a butterfly valve technical field specifically is an improved generation butterfly valve, install in the valve body and form soft sealed disk seat with the dish board, the one end lateral wall that the dish board was kept away from to the disk seat is connected with a plurality of springs, and the other end of a plurality of springs is connected at the clamping ring that is located the valve body, and the other end lateral wall of clamping ring is connected with and is located the outside flange of valve body, flange and the detachable dismouting of valve body. This improved generation butterfly valve, the dish board is at the in-process of opening and close, and the lateral wall supports on the disk seat, and under the spring action of spring, the disk seat removes to clamping ring one side, forms soft sealing between disk seat and the dish board to reduce wearing and tearing, the life of extension equipment, when needing to change the disk seat simultaneously, dismantle the locking bolt, outwards pull out, can easily change, have very strong practicality.

Description

Improved butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is an improved generation butterfly valve.

Background

The butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow, has simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment, simple operation and rapidness, and also has good flow adjusting function and closing sealing characteristic, is one of the fastest valve varieties developed in recent ten years, has very wide use, continues to expand the used varieties and quantity, develops to high temperature, high pressure, large caliber, high sealing performance, long service life, excellent adjusting characteristic and one-valve multifunctional development, has higher reliability and other performance indexes, but the disc and the valve seat in the valve body of the existing butterfly valve are in hard contact, so that the disc and the valve seat are mutually worn in the opening and closing process to cause corner wear, resulting in a low service life of the device and a reduced sealing effect, and for this reason we propose an improved butterfly valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improved generation butterfly valve to solve the problem that proposes 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 improved generation butterfly valve, includes the valve body, installs the dish board in the valve body, installs the valve rod that is used for driving the dish board to open and close on the valve body, and the turbine case that the valve rod inserted in it is installed to the upper end of valve body, and it has the hand wheel that is used for rotating the adjusting valve rod to peg graft to the lateral wall of turbine case, install in the valve body and form soft sealed disk seat with the dish board, the disk board was kept away from to the disk seat one end lateral wall is connected with a plurality of springs, and the clamping ring that is located the valve body is connected to the other end of a plurality of springs, and the other end lateral wall.

Furthermore, the connecting flange penetrates through the flange hole through a locking bolt and is fixedly connected with the side wall of one end of the valve body.

Furthermore, the pressing ring and the connecting flange are of an integrated forming structure.

Furthermore, a first sealing ring which forms sealing with the outer ring of the valve seat is arranged in the valve body.

Furthermore, a second sealing ring which forms a seal with the outer ring of the pressure ring is arranged in the valve body.

Furthermore, the first sealing ring is arranged on the outer ring of the valve seat close to one side of the pressing ring.

Further, the number of the springs is more than three, and the springs are distributed in an equidistant annular shape.

Compared with the prior art, the beneficial effects of the utility model are that: this improved generation butterfly valve, the dish board is at the in-process of opening and close, and the lateral wall supports on the disk seat, and under the spring action of spring, the disk seat removes to clamping ring one side, forms soft sealing between disk seat and the dish board to reduce wearing and tearing, the life of extension equipment, when needing to change the disk seat simultaneously, dismantle the locking bolt, outwards pull out, can easily change, have very strong practicality.

Drawings

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

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

fig. 3 is an enlarged schematic view of part a of the present invention.

In the figure: the valve comprises a valve body 1, a disc plate 2, a valve rod 3, a turbine box 4, a hand wheel 5, a valve seat 6, a spring 7, a pressing ring 8, a connecting flange 9, a flange hole 91, a locking bolt 10, a first sealing ring 11 and a second sealing ring 12.

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, the present invention provides a technical solution:

the utility model provides an improved generation butterfly valve, including valve body 1, install disc 2 in the valve body 1, install the valve rod 3 that is used for driving disc 2 to open and close on the valve body 1, valve rod 3 inserts the turbine case 4 in it is installed to the upper end of valve body 1, the lateral wall of turbine case 4 is pegged graft and is used for rotating the hand wheel 5 of adjusting valve rod 3, install the disk seat 6 that forms soft seal with disc 2 in the valve body 1, be provided with in the valve body 1 and form sealed first sealing washer 11 with 6 outer lanes of disk seat, first sealing washer 11 sets up on the outer lane that disk seat 6 is close to clamping ring 8 one side, disc 2 is when rotating extrusion disk seat 6, disk seat 6 removes to 8 one side of clamping ring, first sealing washer 11 can remain throughout and form sealedly with 6.

Disk 2's one end lateral wall is kept away from to disk seat 6 is connected with a plurality of springs 7, the clamping ring 8 that is located valve body 1 is connected to the other end of a plurality of springs 7, spring 7's quantity is more than three, and a plurality of springs 7 are equidistance annular distribution, the atress is even, be provided with in the valve body 1 and form sealed second sealing washer 12 with the 8 outer lanes of clamping ring, prevent that the fluid from flowing out from the gap between clamping ring 8 and the valve body 1, sealing action, the other end lateral wall of clamping ring 8 is connected with the flange 9 that is located the 1 outside of valve body, clamping ring 8 and flange 9 are the integrated into one piece structure, the integrated structure, the structure is firm, flange 9 and the detachable dismouting of valve body 1, flange 9 passes flange hole 91 and the one end lateral wall fixed connection of valve body.

This improved generation butterfly valve, the in-process that the dish board 2 was opened and close, the lateral wall supports on disk seat 6, under the spring action of spring 7, disk seat 6 removes to clamping ring 8 one side, forms soft sealing between disk seat 6 and the dish board 2 to reduce wearing and tearing, the life of extension equipment, when disk seat 6 need be changed simultaneously, dismantle locking bolt 10, outwards pull out, can easily change, have very strong practicality.

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 utility model provides an improved generation butterfly valve, includes valve body (1), installs dish board (2) in valve body (1), installs valve rod (3) that are used for driving dish board (2) to open and close on valve body (1), and turbine case (4) in valve rod (3) insert it are installed to the upper end of valve body (1), and the lateral wall of turbine case (4) is pegged graft and is had hand wheel (5) that are used for rotating adjusting valve rod (3), its characterized in that: install in valve body (1) and form soft sealed disk seat (6) with dish board (2), the one end lateral wall that dish board (2) were kept away from in disk seat (6) is connected with a plurality of springs (7), and the other end of a plurality of springs (7) is connected at clamping ring (8) that are located valve body (1), and the other end lateral wall of clamping ring (8) is connected with flange (9) that are located valve body (1) outside, flange (9) and the detachable dismouting of valve body (1).

2. An improved butterfly valve as claimed in claim 1, wherein: the connecting flange (9) penetrates through the flange hole (91) through a locking bolt (10) and is fixedly connected with the side wall of one end of the valve body (1).

3. An improved butterfly valve as claimed in claim 1, wherein: the compression ring (8) and the connecting flange (9) are of an integrated forming structure.

4. An improved butterfly valve as claimed in claim 1, wherein: a first sealing ring (11) which forms a seal with the outer ring of the valve seat (6) is arranged in the valve body (1).

5. An improved butterfly valve according to claim 4, in which: and a second sealing ring (12) which forms a seal with the outer ring of the pressing ring (8) is arranged in the valve body (1).

6. An improved butterfly valve in accordance with claim 5, wherein: the first sealing ring (11) is arranged on the outer ring of the valve seat (6) close to one side of the pressing ring (8).

7. An improved butterfly valve as claimed in claim 1, wherein: the number of the springs (7) is more than three, and the springs (7) are distributed in an equidistant annular shape.