CN213479212U

CN213479212U - Ventilation butterfly valve

Info

Publication number: CN213479212U
Application number: CN202021479275.5U
Authority: CN
Inventors: 甘玉春
Original assignee: Zhejiang Jieyi Valve Co Ltd
Current assignee: Zhejiang Jieyi Valve Co Ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-06-18
Anticipated expiration: 2030-07-14

Abstract

The utility model provides a ventilation butterfly valve, which comprises a valve seat component and a valve main body, wherein the upper end of the valve main body is connected with a leading-out pipe part, and the lower end of the valve main body is connected with a leading-in pipe part; the upper inner side of the valve main body is provided with a limiting part; a circular plate part is arranged in the valve main body, guide parts are arranged on the periphery of the circular plate part, a valve body which can freely move between the valve seat component and the valve main body and can be closed due to self weight is arranged in the valve main body, and a convex part which protrudes inwards and can prevent the valve body from rotating is arranged in a movement range of the valve main body corresponding to the valve body; the utility model discloses a be equipped with the convex part in the valve main part, can follow the rotation that physically stops the valve body, from this, can restrain because the rotatory noise that produces of valve body realizes the mute, can prevent deformation and the wearing and tearing of valve body simultaneously, the life-span of extension butterfly valve.

Description

Ventilation butterfly valve

Technical Field

The utility model particularly relates to a butterfly valve field, in particular to ventilation 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.

Conventionally, in a vapor compression refrigeration cycle, a butterfly valve is often used as an element constituting a cycle circuit. The purpose that the butterfly valve used is: the fluid flows in the forward direction to open the valve and close the flow passage.

Further, as such a butterfly valve, there are a butterfly valve in which a valve body is urged by a spring in order to secure a reliable valve-closed state and a degree of freedom of an installation posture, and a butterfly valve of a "micro differential pressure operation type" in which a valve is closed by its own weight without using a spring for urging the valve body in order to reduce a pressure loss at the time of opening the valve.

However, when the butterfly valve is installed after the compressor or when the butterfly valve is curved, a spiral rotating component exists in the fluid flowing through the butterfly valve, and the butterfly valve installed in the vertical direction closes by its own weight, so that a valve closing urging mechanism such as a spring is not provided. Therefore, when the valve is closed by its own weight, the valve body may rotate in the interior (valve chamber) of the valve main body during opening of the valve, which may cause abnormal noise, deformation, and wear, and shorten the life of the butterfly valve.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a ventilation butterfly valve is used for solving the rotatory and easy problem of wearing and tearing of the valve body that above-mentioned background art provided.

In order to solve the above problem, the utility model provides a technical scheme as follows: a ventilation butterfly valve comprises a valve seat component and a valve main body, wherein the upper end of the valve main body is connected with a lead-out pipe part, and the lower end of the valve main body is connected with a lead-in pipe part; the upper inner side of the valve main body is provided with a limiting part; the valve comprises a valve body and a valve seat component, wherein the valve body is arranged on the valve body, a guide part is arranged on the periphery of the circular plate part, a valve body which can be freely moved between the valve seat component and the valve body and can be closed due to self weight is installed in the valve body, the valve body corresponds to a convex part which is arranged in the moving range of the valve body, protrudes inwards and can prevent the valve body from rotating, a cavity is fixedly installed on the top of a guide pipe part, a manual valve is fixedly installed in the cavity, a rotating shaft is fixedly connected to.

Further, a valve chamber is provided in the valve main body, and a connecting portion is mounted on a lower end wall of the valve main body with respect to the valve seat member.

Further, the convex part is a plurality of convex parts, and the convex parts are protruding strips arranged on the inner side wall of the valve body along the moving direction of the valve body.

Further, the convex portion is attached so as to abut against the guide portion when the valve body moves between the valve seat member and the stopper portion, and the convex portion is integrated with the valve main body by integral molding.

Further, the inlet pipe portion is configured to introduce a fluid into the valve interior, the outlet pipe portion is configured to discharge a fluid from the valve interior, and the inlet pipe portion and the outlet pipe portion are connected to the valve main body by integral molding.

Further, the valve seat member is attached to the inside of the valve main body by a press-fitting operation surface.

Further, the length of the convex part is set in such a manner that the convex part is abutted against the valve body in the whole moving range of the valve body.

Further, a recessed portion is provided on the outer periphery of the valve seat member, and the valve seat member is swaged and fixed to the valve body by pressing a predetermined portion of the valve body corresponding to the recessed portion from the outside.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the utility model discloses a be equipped with the convex part on the valve main part, so even the butterfly valve setting has the gyration composition after the compressor or set up after crooked piping in the fluid, because of the gyration composition of fluid and the valve body begins to rotate, the guide portion of valve body also can think the contact with the convex part of valve main part and restrict the rotation of valve body. That is, the rotation of the valve body can be physically stopped, so that noise generated by the rotation of the valve body can be suppressed, noise can be reduced, deformation and abrasion of the valve body can be prevented, and the life of the butterfly valve can be prolonged.

(2) The convex part is formed integrally with the valve main body by integral processing, so that the processing procedure can be simplified, the number of parts can not be increased, the manufacturing can be convenient, and the stability is also improved.

(3) The projection is a projection provided inside the valve body along the moving direction of the valve element, and therefore, the projection can be easily manufactured by assembling the projection, which is manufactured as a single body, to the valve body using a conventional mold.

(4) The inlet pipe and the outlet pipe are arranged on the valve main body through integrated processing and forming, and no connecting part exists in the butterfly valve, so that the condition that fluid leaks to the outside of the butterfly valve is greatly reduced, and the stability of the butterfly valve can be improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the interior of the present invention;

in the figure: 1. a valve body; 2. a valve chamber; 3. a valve seat member; 4. a connecting portion; 5. an introduction tube portion; 6. a recess; 7. a valve port; 8. a circular plate portion; 9. a guide section; 10. a convex portion; 11. a limiting part; 12. a guide pipe part 13, a valve body 14, a cavity 15, a manual valve 16, a rotating shaft 17 and a knob.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings; the invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1: referring to fig. 1 and 2, a ventilation butterfly valve comprises a valve seat component 3 and a valve main body 1, wherein the upper end of the valve main body 1 is connected with a lead-out pipe part 12, and the lower end of the valve main body 1 is connected with a lead-in pipe part 5; the upper inner side of the valve main body 1 is provided with a limiting part 11; the valve comprises a valve body 1, wherein a circular plate part 8 is arranged in the valve body 1, guide parts 9 are arranged around the circular plate part 8, a valve body 13 which can freely move between a valve seat component 3 and the valve body 1 and can be closed by self weight is arranged in the valve body 1, and a convex part 10 which protrudes inwards and can prevent the valve body 13 from rotating is arranged in a moving range of the valve body 13 corresponding to the valve body 1.

Since the valve body is provided with the projection, even if the butterfly valve is provided after the compressor or after the bent pipe and a rotation component is present in the fluid, the valve body starts to rotate due to the rotation component of the fluid, the guide portion of the valve body can come into contact with the projection of the valve body to restrict the rotation of the valve body. That is, the rotation of the valve body can be physically stopped, so that noise generated by the rotation of the valve body can be suppressed, noise can be reduced, deformation and abrasion of the valve body can be prevented, and the life of the butterfly valve can be prolonged.

In order to further improve the use function of the ventilation butterfly valve, a valve chamber 2 is arranged in the valve main body 1, and a connecting part 4 is arranged on the lower end wall of the valve main body 1 of the valve seat component 3; the plurality of the convex portions 10 are provided, the convex portions 10 are ribs provided on the inner wall of the valve body 1 in the moving direction of the valve element 13, and the convex portions are ribs provided inside the valve body in the moving direction of the valve element, so that the convex portions can be easily manufactured by assembling the convex portions manufactured by a single body to the valve body using a conventional mold.

In order to further improve the function of the ventilation butterfly valve, the convex portion 10 is attached so that the convex portion 10 abuts against the guide portion 9 when the valve body 13 moves between the valve seat member 3 and the stopper portion 11, the convex portion 10 is integrated with the valve main body 1 by integral molding, and the convex portion is integrated with the valve main body by integral molding, so that the processing procedure can be simplified, the number of parts can be increased, the manufacturing can be facilitated, and the stability can be improved.

In order to further improve the use function of a ventilation butterfly valve, the inlet pipe portion 5 is used for introducing fluid into the valve, the outlet pipe portion 12 is used for discharging fluid out of the valve, the inlet pipe portion 5 and the outlet pipe portion 12 are connected to the valve main body 1 by integral processing, the inlet pipe and the outlet pipe are arranged on the valve main body by integral processing, and there is no connection part in the butterfly valve, so that the leakage of fluid to the outside of the butterfly valve is greatly reduced, and the stability of the butterfly valve can be improved.

In order to further improve the use function of the ventilation butterfly valve, the valve seat component 3 is installed in the valve main body 1 through press-in operation, so that a sealing element such as a sealing ring is not needed, the number of parts is reduced, and the processing is convenient; the length of the projection 10 is such that the projection 10 abuts against the valve body 13 in the entire range of movement of the valve body 13, and therefore the rotation of the valve body can be prevented regardless of the opening of the butterfly valve; a recess 6 is provided in the outer periphery of the valve seat member 3, and the valve seat member 3 is swaged and fixed to the valve body 1 by pressing a predetermined portion of the valve body 1 corresponding to the recess 6 from the outside.

The operation method of the utility model is as follows: when a fluid such as a refrigerant flows in from the lead-out pipe portion, the valve body is seated on the valve seat member due to the fluid pressure and the self weight of the valve body, thereby closing the valve port and being in a valve-closed state; on the other hand, when the upper fluid enters from the inlet pipe, the pressure of the valve port becomes larger than the pressure of the valve chamber, so that the valve body moves away from the valve seat member toward the valve chamber due to the effect of the pressure difference, and the end of the guide portion of the valve body comes into contact with the stopper portion to form an open valve state.

In conclusion; the utility model discloses a be equipped with the convex part on the valve main part, so even the butterfly valve setting has the gyration composition after the compressor or set up after crooked piping in the fluid, because of the gyration composition of fluid and the valve body begins to rotate, the guide portion of valve body also can think the contact with the convex part of valve main part and restrict the rotation of valve body. That is, the rotation of the valve body can be physically stopped, so that noise generated by the rotation of the valve body can be suppressed, noise can be reduced, deformation and abrasion of the valve body can be prevented, and the life of the butterfly valve can be prolonged. The convex part is formed integrally with the valve main body by integral processing, so that the processing procedure can be simplified, the number of parts can not be increased, the manufacturing can be convenient, and the stability is also improved. The projection is a projection provided inside the valve body along the moving direction of the valve element, and therefore, the projection can be easily manufactured by assembling the projection, which is manufactured as a single body, to the valve body using a conventional mold. The inlet pipe and the outlet pipe are arranged on the valve main body through integrated processing and forming, and no connecting part exists in the butterfly valve, so that the condition that fluid leaks to the outside of the butterfly valve is greatly reduced, and the stability of the butterfly valve can be improved.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A ventilation butterfly valve comprising a valve seat member (3) and a valve body (1), characterized in that: the upper end of the valve main body (1) is connected with a lead-out pipe part (12), and the lower end of the valve main body (1) is connected with a lead-in pipe part (5); a limiting part (11) is arranged on the upper inner side of the valve main body (1); the utility model discloses a valve, including valve seat part (3), valve body (1), export pipe portion (12) top fixed mounting has cavity (14), cavity (14) inside fixed mounting has manual valve (15), manual valve (15) one side fixedly connected with rotation axis (16), rotation axis (16) one side fixed mounting has knob (17), install guide portion (9) all around disk portion (8), install in valve body (1) can be in freely remove between valve seat part (3) and the valve body (1) and valve body (13) that closes the valve because of the dead weight, valve body (1) correspond be provided with protruding convex part (10) that just can prevent the rotation of valve body (13) of inboard in the moving range of valve body (13), export pipe portion (12) top fixed mounting has cavity (14), cavity (14) inside fixed mounting has manual valve (.

2. A vent butterfly valve in accordance with claim 1, wherein: a valve chamber (2) is arranged in the valve body (1), and a connecting part (4) is installed on the lower end wall of the valve seat component (3) of the valve body (1).

3. A vent butterfly valve in accordance with claim 1, wherein: the valve body (1) is provided with a plurality of convex parts (10), and the convex parts (10) are protruding strips arranged on the inner side wall of the valve body (1) along the moving direction of the valve body (13).

4. A vent butterfly valve in accordance with claim 1, wherein: the convex portion (10) is attached in such a manner that the convex portion (10) abuts against the guide portion (9) when the valve body (13) moves between the valve seat member (3) and the stopper portion (11), and the convex portion (10) is integrated with the valve main body (1) by integral molding.

5. A vent butterfly valve in accordance with claim 1, wherein: the inlet pipe portion (5) is used for introducing a fluid into the valve, the outlet pipe portion (12) is used for discharging the fluid from the valve, and the inlet pipe portion (5) and the outlet pipe portion (12) are connected to the valve main body (1) through integral processing and forming.

6. A vent butterfly valve in accordance with claim 1, wherein: the valve seat member (3) is attached to the inside of the valve main body (1) by press-fitting.

7. A vent butterfly valve in accordance with claim 1, wherein: the length of the convex part (10) is set in a mode that the convex part (10) is abutted to the valve body (13) in the moving range of the valve body (13).

8. A vent butterfly valve in accordance with claim 1, wherein: a recessed portion (6) is provided on the outer periphery of the valve seat member (3), and the valve seat member (3) is swaged and fixed to the valve body (1) by pressing a predetermined portion of the valve body (1) corresponding to the recessed portion (6) from the outside.