KR20190048428A - Apparatus for connecting pipes - Google Patents

Abstract

Disclosed is an apparatus for connecting a pipe. The apparatus for connecting a pipe according to an embodiment of the present invention is an apparatus for connecting a pipe to connect a first pipe and a second pipe, comprising: a first hub flange coupled to an end portion of the first pipe; a second hub flange coupled to an end portion of the second pipe; a clamp coupling the first hub flange to the second hub flange; and a fixating unit preventing rotation between the clamp and the first hub flange and the second hub flange.

Description

Apparatus for connecting pipes

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe connecting apparatus, and more particularly to a pipe connecting apparatus using hub flanges.

Hub flanges are used to connect the pipes in the marine construction. The connection method using the hub flange is advantageous in that the number of bolts is smaller than that of the general flange, the process is quick, the maintenance is easy, and the total weight and space can be reduced. However, in the case of the hub flange, leakage of fluids occurs frequently due to sensitivity to alignment conditions and stress loads. Also, even if the hub flange is aligned at the time of installation, the hub flange rotates finely in the process of applying the torque to the clamp, and the entire piping connected to the hub flange is often rotated. In this case, a large alignment error occurs at the flange connection portion of the other end of the pipe.

The present invention is to provide a pipe connecting device capable of preventing rotation of a hub flange.

Further, the present invention is to provide a pipe connecting device capable of adjusting the angle of the hub flange.

The problems to be solved by the present invention are not limited to the above-mentioned problems. Other technical subjects not mentioned will be apparent to those skilled in the art from the description below.

According to an aspect of the present invention, there is provided a pipe connecting apparatus for connecting a first pipe and a second pipe, the pipe connecting apparatus comprising: a first hub flange coupled to an end of the first pipe; A second hub flange coupled to an end of the second pipe; A clamp coupling said first hub flange and said second hub flange; And a fixing portion for preventing rotation between the clamp and the first hub flange and the second hub flange.

The clamp comprising: a semicircular first clamp coupled to one side of the first hub flange and the second hub flange; A semicircular second clamp coupled to the other side of the first hub flange and the second hub flange; And a fixing member for coupling the first clamp and the second clamp.

In one embodiment, the fixing portion includes a first lock pin and a second lock pin protruding from the inner surface of the clamp; A first coupling groove formed in the first hub flange and inserted with the first lock pin; And a second coupling groove formed in the second hub flange and inserted with the second lock pin.

In another embodiment, the fixing portion may include: a first coupling groove and a second coupling groove formed on the inner surface of the clamp; A first lock pin protruding from an outer surface of the first hub flange and inserted into the first coupling groove; And a second lock pin protruding from the outer surface of the second hub flange and inserted into the second coupling groove.

At least one of the first lock pin, the second lock pin, the first engagement groove, and the second engagement groove is formed to be capable of adjusting the angle between the first hub flange and the second hub flange, 1 hub flange or the second hub flange.

According to the embodiment of the present invention, a pipe connecting device capable of preventing the rotation of the hub flange is provided.

Further, according to the embodiment of the present invention, an angle-adjustable pipe connector of the hub flange is provided.

The effects of the present invention are not limited to the effects described above. Unless stated, the effects will be apparent to those skilled in the art from the description and the accompanying drawings.

1 is a perspective view of a pipe connecting apparatus according to an embodiment of the present invention.
2 is an exploded perspective view of a pipe connecting apparatus according to an embodiment of the present invention.
3 is a perspective view of a pipe connecting apparatus according to another embodiment of the present invention.
4 and 5 are sectional views of a pipe connecting apparatus according to another embodiment of the present invention.

Other advantages and features of the present invention and methods of achieving them will be apparent by referring to the embodiments described hereinafter in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and the present invention is only defined by the scope of the claims. Although not defined, all terms (including technical or scientific terms) used herein have the same meaning as commonly accepted by the generic art in the prior art to which this invention belongs. A general description of known configurations may be omitted so as not to obscure the gist of the present invention. In the drawings of the present invention, the same reference numerals are used as many as possible for the same or corresponding configurations. To facilitate understanding of the present invention, some configurations in the figures may be shown somewhat exaggerated or reduced.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises", "having", or "having" are intended to specify the presence of stated features, integers, steps, operations, components, Steps, operations, elements, parts, or combinations thereof, whether or not explicitly described or implied by the accompanying claims.

1 is a perspective view of a pipe connecting apparatus according to an embodiment of the present invention. 2 is an exploded perspective view of a pipe connecting apparatus according to an embodiment of the present invention.

1 and 2, a pipe connecting apparatus 100 according to an embodiment of the present invention includes a first pipe 110 and a second pipe 110 using two hub flanges and a clamp, 120, which includes a first hub flange 130, a second hub flange 140, clamps 150, 160, and fasteners 132, 142, 162, 164.

The first hub flange 130 is coupled to the end of the first pipe 110 and the second hub flange 140 is coupled to the end of the second pipe 120.

A step for coupling to the clamps 150 and 160 is formed around the outer surface of the first hub flange 130 and the second hub flange 140.

The pipe connection method using the hub flanges 130 and 140 has a smaller number of bolts than that of a general flange, so that the pipe connection operation or the maintenance operation can be performed quickly and easily, and the weight and space can be also reduced.

The clamps 150 and 160 are for coupling the first hub flange 130 and the second hub flange 140 and include a semicircular first clamp 150 and a semicircular second clamp 160.

The first clamp 150 and the second clamp 160 are disposed on one side of the first hub flange 130 and the other side of the second hub flange, respectively.

The first clamp 150 and the second clamp 160 are respectively formed with flanges for engaging with the fixing member 170. The first clamp 150 and the second clamp 160 are coupled by a fixing member 170 such as a bolt.

The fixing portions 132, 142, 162 and 164 are provided as stoppers for preventing the rotation between the clamps 150 and 160 and the first hub flange 130 and the second hub flange 140. [

In one embodiment, the fastening portion includes a first lock pin 162 and a second lock pin 164 protruding from the inner surface of the clamps 150 and 160, a first lock pin 162 formed on the outer surface of the first hub flange 130, A first engaging groove 132 into which the lock pin 162 is inserted and a second engaging groove 142 formed in the outer surface of the second hub flange 140 and into which the second lock pin 164 is inserted have.

The lock pins 162 and 164 may be formed on the first clamp 150 and the second clamp 160 or on either the first clamp 150 and the second clamp 160.

The first lock pin 162 formed on the clamps 150 and 160 is inserted into the first coupling groove 132 formed in the first hub flange 130 and is inserted into the clamps 150 and 160 It is possible to prevent the first hub flange 130 from rotating.

The second lock pin 164 formed on the clamps 150 and 160 is inserted into the second coupling groove 142 formed in the second hub flange 140 and is inserted into the second hub flange 140 against the clamps 150 and 160 140 can be prevented from rotating.

The first hub flange 130 and the second hub flange 140 and the pipes 110 and 120 connected to the first hub flange 130 and the second hub flange 140 are formed in the process of applying the torque to the bolts to couple the first clamp 150 and the second clamp 160. [ Can be prevented from being rotated and a large misalignment can be prevented from occurring at the next connecting portion of the pipes 110 and 120.

3 is a perspective view of a pipe connecting apparatus according to another embodiment of the present invention. In the description of the embodiment of FIG. 3, redundant description may be omitted for the same or corresponding components to those of the previously described embodiment.

3, the first coupling groove 166 and the second coupling groove 168 are formed on the inner surfaces of the clamps 150 and 160 and the first hub flange 130 A second lock pin 144 is formed on the outer surface of the second hub flange 140 so as to protrude from the outer surface of the second coupling flange 140, Which is inserted into the first hub flange 130 and the second hub flange 140 to prevent rotation of the first hub flange 130 and the second hub flange 140. [

The coupling grooves 166 and 168 may be formed in the first clamp 150 and the second clamp 160 or in the first clamp 150 and the second clamp 160, respectively.

In another embodiment, first engaging grooves and first lock pins are formed on the inner surface of the clamps 150 and 160, respectively, and a first lock pin is protruded on the outer surface of the first hub flange 130, And a first lock pin of the clamp is inserted into a second coupling groove formed in the outer surface of the second hub flange 140 so that the first hub flange 130 and the second hub And may be configured to prevent rotation of the flange 140.

4 and 5 are sectional views of a pipe connecting apparatus according to another embodiment of the present invention. In describing the embodiments of FIGS. 4 and 5, redundant description may be omitted for the same or corresponding components as those of the above-described embodiments.

The pipe connecting apparatus 100 according to the embodiment of FIGS. 4 and 5 is configured such that the first lock pin 152 and the first lock pin 162 are arranged in the first hub flange 130 so that the angle between the first hub flange 130 and the second hub flange 140 can be adjusted. A plurality of first coupling grooves 132 are formed along the circumferential direction of the first hub flange 130. The plurality of first coupling grooves 132 are formed along the circumferential direction of the first clamp 150 and the second clamp 160,

In addition, a plurality of second lock pins are formed along the circumferential direction of the first clamp 150 and the second clamp 160, and a plurality of second engagement grooves are formed along the circumferential direction of the second hub flange.

4 and 5, the angle between the first hub flange and the second hub flange can be adjusted by the angle between the engagement grooves 132, the angle between the lock fins 152 and 162. [

The first lock pin and the second lock pin may be disposed along the circumferential direction of the hub flange 130 or 140 so as to allow the angle adjustment between the first hub flange 130 and the second hub flange 140. [ It is also possible that a plurality of first coupling grooves and second coupling grooves are formed along the circumferential direction of the clamp.

It is to be understood that the above-described embodiments are provided to facilitate understanding of the present invention, and do not limit the scope of the present invention, and it is to be understood that various modifications are possible within the scope of the present invention. It is to be understood that the technical scope of the present invention should be determined by the technical idea of the claims and that the technical scope of the present invention is not limited to the literary description of the claims, Of the invention.

100: pipe connecting device 110: first pipe
120: second pipe 130: first hub flange
132: first engagement groove 134: first lock pin
140: second hub flange 142: second coupling groove
144: second lock pin 150: first clamp
152, 162: first lock pin 160: second clamp
162: first lock pin 164: second lock pin
166: first engaging groove 168: second engaging groove
170: fixing member 180: sealing member

Claims (5)

A pipe connecting apparatus for connecting a first pipe and a second pipe,
A first hub flange coupled to an end of the first pipe;
A second hub flange coupled to an end of the second pipe;
A clamp coupling said first hub flange and said second hub flange; And
And a fixing portion for preventing rotation between the clamp and the first hub flange and the second hub flange. The method according to claim 1,
The clamp
A semicircular first clamp coupled to one side of the first hub flange and the second hub flange;
A semicircular second clamp coupled to the other side of the first hub flange and the second hub flange; And
And a fixing member for coupling the first clamp and the second clamp. The method according to claim 1,
The fixing unit includes:
A first lock pin and a second lock pin protruding from the inner surface of the clamp;
A first coupling groove formed in the first hub flange and inserted with the first lock pin; And
And a second coupling groove recessed in the second hub flange and into which the second lock pin is inserted. The method according to claim 1,
The fixing unit includes:
A first engaging groove and a second engaging groove formed on the inner surface of the clamp;
A first lock pin protruding from an outer surface of the first hub flange and inserted into the first coupling groove; And
And a second lock pin protruding from an outer surface of the second hub flange and inserted into the second coupling groove. The method according to claim 3 or 4,
At least one of the first lock pin, the second lock pin, the first engagement groove, and the second engagement groove is formed to be capable of adjusting the angle between the first hub flange and the second hub flange, Wherein a plurality of pipe connecting devices are formed along the circumferential direction of the first hub flange or the second hub flange.

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