CN217842712U

CN217842712U - Leak-proof electric butterfly valve

Info

Publication number: CN217842712U
Application number: CN202221915793.6U
Authority: CN
Inventors: 于洪军
Original assignee: Tianjin Zhicheng Valve Co ltd
Current assignee: Tianjin Zhicheng Valve Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-18
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses a formula electric butterfly valve is let out in leak protection, construct the disk seat on valve body top including valve body and placed in the middle, the valve rod is installed to the disk seat internal rotation, and the top fixed mounting of valve rod has a hand wheel, the valve rod extends into the one end movable mounting in the valve body has a closing mechanism who is used for the shutoff valve body, and the bottom of valve rod rotates and connects in the internal bottom of valve, closing mechanism includes the sleeve, telescopic top has seted up the through-hole that supplies valve rod demountable installation between two parties, telescopic both sides have all been constructed the butterfly plate, and the outer fringe face both sides of butterfly plate have all seted up the arc recess, two equal fixed bonding is provided with the arc sealing strip in the arc recess, the arc wall has all been seted up between two parties to the both sides of valve body inner fringe face, and the arc sealing strip is all fixed to be provided with in two arc walls. This formula electric butterfly valve is let out in leak protection possesses and prevents leaking the structure, can avoid the condition of leaking to appear, has promoted the sealing performance of this butterfly valve by a wide margin, and the practicality is stronger.

Description

Leak-proof electric butterfly valve

Technical Field

The utility model belongs to the technical field of the valve, concretely relates to formula electric butterfly valve is let out in leak protection.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and 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 butterfly valve can rotate by rotating a hand wheel to complete the closing of the butterfly valve by taking a butterfly plate valve shaft as an axis.

The closing member is contacted with the inner wall of the valve body in a low tightness degree in a closed state of the butterfly valve in the prior art, so that the butterfly valve is easy to leak under long-term use abrasion, and has poor sealing performance and low practicability.

Disclosure of Invention

An object of the utility model is to provide a formula electric butterfly valve is let out in leak protection 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 does:

an anti-leakage electric butterfly valve comprises a valve body and a valve seat which is centrally constructed at the top end of the valve body;

a valve rod is rotatably mounted in the valve seat, a hand wheel is fixedly mounted at the top end of the valve rod, a closing mechanism for plugging the valve body is movably mounted at one end of the valve rod extending into the valve body, and the bottom end of the valve rod is rotatably connected to the bottom end in the valve body;

closing mechanism includes the sleeve, telescopic top is seted up between two parties and is supplied valve rod demountable installation's through-hole, telescopic both sides have all been constructed the butterfly plate, and the outer fringe face both sides of butterfly plate have all seted up the arc recess, two equal fixed bonding is provided with the arc sealing strip in the arc recess.

Furtherly, the arc wall has all been seted up between two parties to the both sides of valve body inner fringe face, and all fixedly in two arc walls be provided with the arc sealing strip of butt in the arc sealing strip.

Furthermore, limiting grooves are formed in two sides of the through hole, and limiting keys are formed in two sides of the outer edge surface of one end, extending into the through hole, of the valve rod.

Furthermore, one end, far away from the valve rod, of the limiting key is inserted and fixed in the limiting groove.

Furthermore, a first flange plate and a second flange plate are respectively fixedly welded at two ends of the valve body, and a plurality of through holes are formed in one side of each of the first flange plate and the second flange plate in an annular array.

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

thanks to the arrangement of the valve body and the closing mechanism, the valve rod is rotated to drive the closing mechanism to rotate in the valve body, so that the interior of the valve body is blocked by the sleeve with two butterfly plates, and the joint between the two butterfly plates and the valve body is blocked by the arc-shaped sealing strip, so that the leakage is avoided as much as possible, the sealing performance of the butterfly valve is greatly improved, and the practicability is high;

benefit from inside bonding to have the valve body of two arc sealing strips and closing mechanism's setting, drive two butterfly plates when the sleeve and rotate to when accomplishing the shutoff to the valve body, four arc sealing strips that set up on two butterfly plates butt respectively in two arc sealing strips, in order to realize the shutoff to valve body inner wall and butterfly plate seam crossing, thereby further improve the sealing performance of this butterfly valve.

Drawings

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

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

fig. 3 is a schematic structural view of the closing mechanism of the present invention.

In the figure: 1. a valve body; 2. a valve seat; 3. a valve stem; 301. a limit key; 4. a hand wheel; 5. a closing mechanism; 501. a sleeve; 502. a through hole; 503. a butterfly plate; 504. an arc-shaped sealing strip; 505. a limiting groove; 6. an arc-shaped sealing belt; 7. a first flange plate; 8. and a second flange plate.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

As shown in fig. 1, fig. 2, fig. 3, a leak-proof electric butterfly valve includes valve body 1 and disk seat 2 constructed on top of valve body 1 in the middle, both ends of valve body 1 are welded and fixed with first flange 7 and second flange 8 respectively, one side of first flange 7 and second flange 8 all is the annular array and has seted up a plurality of through holes, 2 internal rotation of disk seat has valve rod 3, and the top fixed mounting of valve rod 3 has hand wheel 4, the one end movable mounting that valve rod 3 extends into in valve body 1 has closing mechanism 5 who is used for shutoff valve body 1, and the bottom of valve rod 3 rotates and connects in bottom in valve body 1, closing mechanism 5 includes sleeve 501, sleeve 501's top is seted up the through-hole 502 that supplies valve rod 3 demountable installation between two parties, sleeve 501's both sides all are constructed butterfly plate 503, and butterfly plate 503's outer fringe face both sides all have seted up the arc recess, two all fixed bonding is provided with arc-shaped sealing strip 504 in the arc recess, drives closing mechanism 5 in valve body 1 internal rotation through rotating sleeve 501 who constructs two butterfly plate 503 to carry out the butterfly plate 503 in valve body 1, carry out the shutoff with the sealing strip 503 through the sleeve 501 that two butterfly plate 503, the shutoff valve body 1 carries out the shutoff with the sealing strip 503, the sealing strip by a wide margin, this valve body 1 the feasible circumstances, this butterfly plate sealing strip, the shutoff performance has avoided the shutoff performance to appear the feasible circumstances, this butterfly plate to the shutoff performance, this butterfly valve body 1 condition, this butterfly valve body 1, the shutoff performance of this butterfly valve body to the most a great extent.

As shown in fig. 1, fig. 2, and fig. 3, wherein arc-shaped grooves are respectively formed in the two sides of the inner edge surface of the valve body 1, arc-shaped sealing strips 6 abutting against the arc-shaped sealing strips 504 are fixedly arranged in the two arc-shaped grooves, limiting grooves 505 are respectively formed in the two sides of the outer edge surface of one end of the valve rod 3 extending into the through hole 502, limiting keys 301 are respectively formed in the two sides of the outer edge surface of one end of the valve rod 3 extending into the through hole 502, one ends of the limiting keys 301 far away from the valve rod 3 are inserted and fixed in the limiting grooves 505, when the sleeve 501 drives the two butterfly plates 503 to rotate and complete the plugging of the valve body 1, the four arc-shaped sealing strips 504 arranged on the two butterfly plates 503 abut against the two arc-shaped sealing strips 6 respectively, so as to plug the joints of the inner wall of the valve body 1 and the butterfly plates 503, and further improve the sealing performance of the butterfly valve.

The working principle is as follows: this formula electric butterfly valve is let out in leak protection, during the use, through a plurality of bolt cooperation ring flange 7 and two 8 of ring flange that prepare in advance, can be fixed in pipe-line system with this butterfly valve, fixed completion back, can drive the valve rod 3 rotation of installing closing mechanism 5 through rotating hand wheel 4, thereby make the sleeve 501 that is constructed two butterfly plates 503 carry out the shutoff to valve body 1, thereby make four arc sealing strip 504 butt respectively in two arc sealing strips 6 that set up on the butterfly plate 503, make two butterfly plates 503 and valve body 1's seam crossing carry out the shutoff through four arc sealing strip 504 and two arc sealing strips 6, with the condition of avoiding leaking as far as appearing, the sealing performance of this butterfly valve has been promoted by a wide margin, the practicality is stronger.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An anti-leakage electric butterfly valve comprises a valve body (1) and a valve seat (2) which is centrally arranged at the top end of the valve body (1);

the method is characterized in that: a valve rod (3) is rotatably mounted in the valve seat (2), a hand wheel (4) is fixedly mounted at the top end of the valve rod (3), a closing mechanism (5) for plugging the valve body (1) is movably mounted at one end of the valve rod (3) extending into the valve body (1), and the bottom end of the valve rod (3) is rotatably connected to the inner bottom end of the valve body (1);

closing mechanism (5) are including sleeve (501), through-hole (502) that supply valve rod (3) demountable installation are seted up between two parties to the top of sleeve (501), butterfly plate (503) have all been constructed to the both sides of sleeve (501), and the outer fringe face both sides of butterfly plate (503) have all been seted up the arc recess, two equal fixed bonding is provided with arc sealing strip (504) in the arc recess.

2. The leakage-proof electric butterfly valve according to claim 1, wherein: arc-shaped grooves are formed in the two sides of the inner edge face of the valve body (1) in the middle, and arc-shaped sealing strips (6) which are abutted to the arc-shaped sealing strips (504) are fixedly arranged in the two arc-shaped grooves.

3. The leakage-proof electric butterfly valve according to claim 1, wherein: limiting grooves (505) are formed in two sides of the through hole (502), and limiting keys (301) are formed in two sides of the outer edge surface of one end, extending into the through hole (502), of the valve rod (3).

4. The leakage-proof electric butterfly valve according to claim 3, wherein: one end of the limiting key (301) far away from the valve rod (3) is fixedly inserted into the limiting groove (505).

5. The leakage-proof electric butterfly valve according to claim 1, wherein: and a first flange plate (7) and a second flange plate (8) are respectively welded and fixed at two ends of the valve body (1), and a plurality of through holes are formed in one side of the first flange plate (7) and one side of the second flange plate (8) in an annular array.