KR20160126369A

KR20160126369A - Sided retractable butterfly valve

Info

Publication number: KR20160126369A
Application number: KR1020150057349A
Authority: KR
Inventors: 이태일
Original assignee: (주)티오피
Priority date: 2015-04-23
Filing date: 2015-04-23
Publication date: 2016-11-02

Abstract

It is possible to install a bellows pipe (= corrugated pipe) on both sides of a normal butterfly valve so that the distance between the sides can be adjusted. Even if the center of the connection pipe and the valve do not coincide, The present invention relates to a retractable full bellows type butterfly valve, in which the distance between the surfaces is adjusted, the installation of the butterfly valve 1 is easy, and the changed length is compensated even if the length of the connection tube 9 is changed Even if the center of each of the butterfly valves 1 and the coupling pipe 9 is eccentric, it is easy to assemble even when the center is eccentric. Therefore, it is possible to provide convenience of the installation work, and also to the bellows pipe 5), it is possible to provide safety by eliminating breakage of the bonding site.

Description

[0001] SIDED RETRACTABLE BUTTERFLY VALVE [0002]

The present invention relates to a butterfly valve, in which a bellows pipe (= corrugated pipe) is laid on both sides of a normal butterfly valve so that the distance between the surfaces can be adjusted. Even if the center of the connection pipe and the valve do not coincide, And which is capable of absorbing an external impact, and more particularly, to a double-sided extensible full-bellows type butterfly valve.

The present invention relates to a butterfly valve. More specifically, a bellows pipe (= corrugated pipe) is laid on both sides of a normal butterfly valve so that the interval between the surfaces of the butterfly valve can be adjusted. A full bellows-type butterfly valve that can be installed upside down, left and right, and absorbs shocks caused by ground subsidence or earthquake after installation. valve.

1, a conventional butterfly valve 100 includes a disk 102 fixed to a vertically rotating shaft 103 inside a body 101 having a coupling flange 104 integrally formed on both sides thereof, And the connecting pipe 105 such as an inflow and outflow tube is connected to the flange 104 on both sides of the body 101. The connecting pipe 105 is connected to a handle or a motor, The rotating shaft 103 is rotated so that the fluid flows through the opening of the disk 102 fixed thereto and the rotating shaft 103 is rotated in the opposite direction to block the flow of the fluid by closing the disk 102. [

If the centers of the connecting pipe 105 and the butterfly valve 100 do not coincide with each other when they are coupled to the connecting pipe 105, the conventional butterfly valve 100 may leak, When the butterfly valve 100 is coupled with the center pipe 105, it is often difficult to connect the other connecting pipe 105 to the valve 100. In addition, The joint portion between the valve 100 and the coupling pipe 105 is damaged due to an impact generated when a ground or an earthquake occurs.

(Document 1) Korean Registered Patent No. 10-1173306 (Registered on August 6, 2012)

Accordingly, the present invention contemplates a number of problems of the conventional butterfly valve as described above. The present invention is characterized in that a bellows pipe is provided on both sides of a butterfly valve, and a flange, To adjust the distance between the sides of the valve when the valve is installed. Even if the connection centers of the connection pipe and the valve do not coincide, it is possible to adjust them to the upper, lower, left and right sides. The present invention has been accomplished on the basis of the technical object of the present invention by providing a double-sided expandable full-bellows type butterfly valve.

According to one aspect of the present invention for achieving the above-described objects and other features, there is provided a magnetic disk device including a rotating shaft 4 rotated by a handle or a motor, a disk 3 fixed to the rotating shaft 4, (1) including a body (2) in which a valve body (3) is inserted into the body (2); A bellows tube 5 which is welded on both sides of the body 2 so as to be welded to each other at the center of the outer periphery of the body 2 and a plurality of auxiliary connecting pieces A flange 6 provided on the inner side of the end of the bellows pipe 5 and welded to the inner surface of the flange 6 so as to be in sliding contact with the inside of the body 2, And a sliding tube (7) formed so as to communicate with the body (2). The double-sided expanding full-bellows butterfly valve according to claim 1,

The present invention relates to a conventional butterfly valve (1) in which a disk (3) is fixed by being fixed to a rotary shaft (4) which is vertically pivotally supported by a handle or a motor, A bellows pipe 5 is formed on both sides of the bellows pipe 5 and a plurality of auxiliary connecting pieces 5a are radially welded and fixed to the outer periphery of the bellows pipe 5, A flange 6 formed so as to communicate with the body 2 is welded and fixed to an inner surface of a sliding tube 7 which is slidable on the inner surface of the body 2 so as to be connected to the outer surface of the bellows pipe 5, 8 is configured to be pressed and fixed so that the interplanar distance l can be adjusted as described above and the installation of the butterfly valve 1 is easy and the length of the coupling tube 9 is changed The changed length can be compensated for, Even when the center of each of the fly valve 1 and the coupling pipe 9 is eccentric, it is possible to provide a convenience of the installation work by facilitating the connection, and even when an earthquake or an external shock such as an earthquake is applied to the bellows pipe 5 It is possible to provide the safety by eliminating the breakage of the joint part by the above-mentioned method.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 is a sectional view of a conventional butterfly valve.
2 is a partially exploded perspective view showing a preferred example of the butterfly valve provided in the present invention;
3 is a perspective view showing a coupled state of a butterfly valve provided in the present invention;
4 is a cross-sectional structural view of a butterfly valve provided in the present invention.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Further, terms such as " part, "" unit," " module, "and the like described in the specification may mean a unit for processing at least one function or operation.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 2 is a partially exploded perspective view showing a preferred example of the butterfly valve 1 provided in the present invention, FIG. 3 is a perspective view showing the engaged state of the present invention, and FIG. 4 is a cross- The present invention will now be described in detail with reference to the accompanying drawings.

The present invention relates to a conventional butterfly valve (1) in which a disk (3) is fixed by being fixed to a rotary shaft (4) which is vertically pivotally supported by a handle or a motor, The bellows tube 5 is welded to both sides of the bellows tube 5 so that the bellows tube 5 is in contact with the outer center of the body 2, A plurality of auxiliary connecting pieces 5a are welded and fixed to the outer periphery of the double-sided bellows pipe 5 in a radial manner in order to increase the mutual contact force of the pipe 5.

A flange 6 is formed on the inner side of the end of the bellows pipe 5 and a sliding tube capable of slidably sliding on the inner surface of the flange 6 with a predetermined distance 7 are welded and fixed so as to communicate with the body 2.

The coupling band 8 may be pressed and fixed to the outer periphery of the end of the bellows pipe 5 in order to further strengthen the joint between the bellows pipe 5 and the flange 6. [

It is a matter of course that the connection pipe 9 for allowing the fluid to flow in and out is fixed to the left and right flanges 6 by fixing means 10.

In addition, the corrugated portion of the bellows pipe 5 may be formed in a shape other than U-shape on the cross section, or may be formed in various shapes.

Reference numeral 11 in the drawings denotes a body sheet, and reference numeral 12 denotes a disk sheet.

According to the present invention configured as described above, the rotation of the rotating shaft 4 rotates the disk 3 to adjust the flow rate and the hydraulic pressure of the fluid by the degree of opening of the body sheet 11 and the disk sheet 12, The conventional butterfly valve 100 forms the flange 104 integrally with both sides of the body 101. In contrast to the butterfly valve 100 in which the flange 104 is integrally formed on both sides of the body 101, A flange 6 integrally formed with the sliding tube 7 is provided at both ends of the bellows pipe 5 so that the sliding surface of the bellows pipe 5 is connected to the sliding surface of the bellows pipe 5, The tube 7 is slid with a certain distance from the inside of the body 2 so that the connection tube 9 coupled to the flange 6 by the coupling means 10 is compensated for by the changed distance And at this time, the bellows pipe 5 is folded It was that.

A plurality of auxiliary connecting pieces 5a are radially fixed to the contact portion of the double-sided bellows pipe 5 and the binding band 8 is pressed and fixed to the outer periphery of the end of the bellows pipe 5 on which the flange 6 is provided, It is possible to increase the supporting force and the bonding force of the bonding site.

Even when the center of the coupling pipe 9 and the center of the body 2 do not coincide with each other (= eccentricity) when the coupling pipe 9 is engaged with the butterfly valve 1, When the flange 6 is coupled to the connecting pipe 9 by the coupling means 10, the eccentricity can be overcome by the bellows pipe 5, and the bellows pipe 5 is vertically and vertically It is possible to freely switch the direction to the left and right.

Further, after the butterfly valve (1) and the coupling pipe (9) are coupled, the joint portion is not easily broken by external impact,

Even if the position of the connection pipe 9 or the butterfly valve 1 is changed in the up and down direction and the left and right direction in case of an impact caused by one earthquake or the like, the bellows pipe 5 is stretched or reduced by its variable position, will be.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Accordingly, the embodiments disclosed herein are for the purpose of describing rather than limiting the technical spirit of the present invention, and it is apparent that the scope of the technical idea of the present invention is not limited by these embodiments. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: (Double-sided extension bellows type) Butterfly valve
2: Body
3: Disc
4:
5: Bellows tube
5a: auxiliary connection
6: Flange
7: Sliding tube
8: Coupling band
9: Connector
10: coupling means

Claims

A conventional butterfly valve including a rotary shaft rotated by a handle or a motor, a disk fixed to the rotary shaft, and a body having a rotary shaft and a disk inserted therein;
A bellows tube formed on both sides of the body so as to be hermetically sealed,
A plurality of auxiliary connecting pieces welded and fixed on the outer radial side of the double-sided bellows pipe,
A flange provided inside the end portion of the bellows pipe,
And a sliding tube which is welded and fixed to the inner surface of the flange, is slidable in contact with the inner surface of the body, and is in sliding contact with the body.
Double-sided extensible bellows butterfly valve.