KR20190083934A - A Connector for Pipe - Google Patents

Abstract

The present invention relates to a connector for a metal pipe, which aims to firmly connect the metal pipe to a T-shaped connector, an L-shaped connector, or a connector socket, and more specifically, relates to a connector for a metal pipe, which aims to solve the problems in the conventional connection methods such as a clamp type or a welding type for connecting a metal pipe with a greater diameter, which cannot be connected by a screw fastening type, and to make it easier to perform a construction. To this end, the connector for the metal pipe comprises: a hanging means with a fastening ring fixated on the external surface on a rear side distanced from a front end of the metal pipe, which is a straight pipe, to fixate and connect the metal pipe with the connector when a connector such as a T-shaped connector, an L-shaped connector, or connector socket is assembled with a cover by an assembly bolt; and a groove edge formed on an external surface of the metal pipe, into which the fastening ring can be inserted, for firmly fixating them. The fastening ring is formed in the shape of C having an internal diameter smaller than the external diameter of the metal pipe to be prevented from randomly being dislodged while it is inserted into the groove edge. The groove edge has a coating layer for preventing corrosion.

Description

{A Connector for Pipe}

The present invention relates to a connecting part for rigidly connecting a metal pipe to a "t" connecting part or "c" connecting part or a connecting socket, and more particularly to a connecting part having a large diameter And to solve the problems of clamp type and welding type, which is a conventional connection method, for ease of construction.

Currently, there are two ways to connect an intuitive metal pipe with a "ㅜ" connection part or a "ㄴ" connection part or a connection part such as a connection socket. Firstly, the tip of the metal pipe is threaded, A second type of clamp type in which the tip end of the connection part and the clamping frame formed at the tip of the metal pipe are wrapped from outside and are firmly connected to each other and the third type is a clamp type in which the tip of the metal pipe is welded (welded or brazed) And a welding type in which the connection is made by the method of FIG.

At this time, the problem of the screw tightening type which is connected by the screw tightening means is that the metal pipe should be formed with a thread, the thread should be formed from the tip of the metal pipe, "" "Connection fittings or connection sockets, such as" "" connecting fittings or "" "connecting fittings or connecting fittings by means of threads formed at the ends of metal pipes, In the case of fluid connection, when the fluid is in contact with the tip of the threaded part, the galvanized steel pipe is corroded due to the dislocation of zinc, So that problems such as water leakage may occur.

In other words, a so-called white pipe, which is usually used as a metal pipe, is processed to form a thread to connect the pipe with the connecting part, which is formed (coated) on the inner and outer surfaces of the pipe to prevent corrosion, Which will be peeled off and corrosion will occur.

In addition, since the screw tightening type by the screw tightening means is applied only to 65A or less in accordance with the architectural regulations, there is a problem that the metal pipe of 65A or more can not be installed.

Therefore, as a method for connecting metal pipes of 65 A or more, welding or clamping is performed

The problem with the welding type is that a so-called white pipe used as a straight pipe is formed on the inner and outer surfaces of the pipe in order to prevent corrosion. When the white pipe is welded with the connecting part, Since the welding can not be carried out, welding is usually performed using a welding method in which welding is performed by welding between metals which are usually in close contact with each other or between welding of metals which are in close contact with each other. The inclusions corresponding to the residues may be generated,

In addition, slag, which is an oxide accumulated on the weld bead, may be generated. If such inclusions or slag can not be completely removed, corrosion may occur in such a portion, and eventually leakage may occur in such a portion.

The problem with the clamp type is that it is necessary to have clamps of various sizes depending on the diameter of the metal pipe, as well as a "clamp" connection part or another metal pipe connected by the connection part of the " When the coaxial (same axis) is displaced, the flow path is formed by forcibly assembling by using a clamp. However, due to the metal pipe connected to the clamp, a large amount of stress is generated and leakage occurs due to breakage or generated gap.

In addition, a flange protruded outward so that a clamp can be assembled to the front end of the metal pipe is provided. The flange is welded to the tip of the metal pipe by welding, thereby causing a problem such as the welding type .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide a large diameter metal pipe (a white pipe and a black pipe) which can not be connected by a screw- It is possible to make a fixed connection by a simple operation while preventing corrosion.

To this end, the present invention is characterized in that, in the state where the tightening ring is fixed to the rear outer surface spaced from the front end of the straight metal pipe, the connection of the " And the metal pipe and the connecting part are fixedly connected by the engaging means when the cover is assembled by the assembly bolt.

Further, it is possible to firmly fix the metal pipe by forming a groove that can be inserted into the outer surface of the metal pipe.

Further, the tightening ring is formed in a "C" shape having an inner diameter smaller than the outer diameter of the metal pipe so as to implement the engaging means which is not detached arbitrarily in the state in which the tightening ring is inserted in the groove.

In addition, it is also possible to prevent corrosion which may be caused by providing a coating layer for preventing corrosion on the homethe.

Therefore, it is possible to prevent corrosion due to the contact of the metal pipe with the water flowing into the pipe, and the metal pipe and the connecting part can be separated and coupled only by releasing and fastening the assembly bolt, It is possible to provide ease of maintenance.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view of one embodiment of a conventional screw tightening type.
2 is a perspective view showing one embodiment of a conventional welding time.
3 is a perspective view of one embodiment of a conventional clamp type.
4 is a perspective view of a metal frame connected to a connecting part of the present invention;
5 is an exploded view of a metal frame coupled to a connecting part of the present invention.
6 is a cross-sectional exploded view in which a metal frame is coupled to the connecting part;
7 is a cross-sectional view showing another embodiment in which a receiving portion is formed on a cover of a connecting part;
8 is a cross-sectional view showing a washer provided between the body and the cover.
FIG. 9 is a state in which a coating layer is provided on the groove of the metal pipe. FIG.
10 shows an embodiment in which the metal frame is connected to the "" connecting part.
Figure 11 is an embodiment in which a metal frame is connected to a "connection "

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 4 to 11, the connecting part 100 of the present invention is for connecting the metal pipe 200 and the metal pipe 200 firmly. In particular, the metal pipe 200 has a large diameter metal When connected to pipe (white pipe and black pipe), it is possible to make a fixed connection by simple operation and prevent corrosion.

To this end, the construction of the present invention is characterized in that a connecting part 100 such as a connecting part or a connecting part or a connecting socket is provided with a connecting part 100 for firmly connecting the metal pipe 200, With regard to wealth,

The binding portion includes a body 110 into which the distal end 201 of the metal pipe 200 is inserted, an engaging means 1 provided at the distal end 201 of the metal pipe 200, And a cover 120 to be coupled.

The binding portion having such a configuration is provided with a hook portion provided on the distal end portion 201 of the metal pipe 200 in a state where the distal end portion 201 having the distal end face 202 of the metal pipe 200 is inserted into the body 110, When the lid 120 and the body 110 are assembled to the rear end of the means 1, the engaging means 1 provided on the metal pipe 200 is interrupted by the lid 120, After the distal end 201 of the body 110 is completely inserted into the body 110,

5, the body 110 is formed with an insertion hole 111 into which the distal end 201 of the metal pipe 200 can be inserted, and the insertion hole 111 is formed with a " And a flange 113 protruding outwardly is formed in each of the insertion holes 111 so as to be assembled with the lid 120.

In addition, an O-ring 140, a pressure ring 150, a tightening ring 160, and a lid 120 are sequentially inserted into the front end portion 201 of the metal pipe 200, And is fixed in the hinge 203 formed in the metal pipe 200 so that the engaging means 1 is realized.

That is, the front end 201 of the metal pipe 200 is inserted into the insertion hole 111 of the connection part 100 so that the cover 120 and the body (not shown) The tightening ring 160 is interrupted by the lid 120 so that the metal pipe 200 can be engaged without being disassembled in the connecting part 100 arbitrarily when the flange 113 of the connecting part 100 is assembled.

When the distal end 201 of the metal pipe 200 is inserted into the insertion hole 111 of the insertion hole 111 of the body 110, So that the seal 130 is closely contacted with the seal 130.

The O-ring 140 is inserted into the insertion hole 111 when the front end 201 of the metal pipe 200 is inserted, and is inserted between the inner circumference of the insertion hole 111 and the outer circumference of the metal pipe 200 So that double sealing can be achieved.

The o-ring 140 is pressed by the pressing ring 150 positioned in front of the tightening ring 160 when the lid 120 and the body 110 are assembled, so that the o-ring 140 can be further sealed.

The insertion hole 111 is formed with a plurality of step portions 112. The step portion 112 includes a first step 112a on which the packing 130 is seated, an O-ring 140, And a second end portion 112b on which the second end portion 150 is seated.

The cover 120 includes a plate 121 having a predetermined area that can be engaged with the flange 113 of the body 110. The plate 121 has a shape corresponding to the flange 113 Lt; / RTI >

In this case, the lid 120 is formed with a fitting hole 122 at the center so that the metal pipe 200 can be inserted therein. The fitting hole 122 is larger than the outer diameter of the metal pipe 200, Is smaller than the outer diameter of the tightening ring (160).

When the lid 120 is coupled to the flange 113 of the body 110, the tightening ring 160 may be received in the insertion hole 111 of the body 110, And may be provided on the inner side of the connecting part 100 by forming a part 124.

An assembly hole 114 is formed in the flange 113 of the main body 110 and a through hole 123 is formed in the lid 120 to be coupled by the assembly bolt 170.

A through hole 123 is formed in the flange 113 of the main body 110 and the lid 120. A shaft of the assembly bolt 170 inserted into the through hole 123 can be fastened to the nut will be.

In addition, the assembly bolt 170, which is provided with the anti-loosening washer 171 between the flange 113 and the lid 120, does not cause any loosening.

A tightening ring 160 is formed on an outer circumferential portion of the front end 202 of the metal pipe 200 so that the engaging means 1 may be provided at the front end 201 of the metal pipe 200 And a tightening ring 160 which is inserted into the hinge 203 is coupled to the hinge 203 so as not to be detached from the hinge 203.

The tightening ring 160 is formed in a shape of C having an inner diameter smaller than the outer diameter of the metal pipe 200 and is connected to the front end 201 of the metal pipe 200 And the tightening ring 160 fitted in the tip portion 201 is automatically inserted into the hinge 203 by the elastic force when the hinge 203 is positioned in the hinge 203, Can be implemented.

The outer circumference of the tightening ring 160 is protruded outward from the outer circumference of the metal pipe 200 and when the lid 120 provided at the rear end of the lid 120 is engaged with the main body 110, (201) can be coupled firmly to the connecting part (100).

In addition, since the anti-corrosion coating layer 204 is formed on the homethethere 203, corrosion of the surface of the metal pipe 200 can be prevented from being generated even when the tightening ring 160 is assembled.

Therefore, it is possible to prevent corrosion by preventing the contact with the water flowing into the pipe of the metal pipe, and it is possible to separate and connect the metal pipe and the connecting part by only releasing and fastening the assembly bolt, It is possible to provide it.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, There will be.

1:
100: connection parts
110: body 111: insertion hole 112:
112a: first stage 112b: second stage 113:
114: Assembly
120: cover 121: plate 122:
123: through hole 124: receiving portion
130: Packing
140: O ring
150: Pressurizing ring
160: tightening ring
170: Assembly bolt 171: Release prevention washer
200: metal pipe 201: leading end 202:
203: Grove 204: Coating layer

Claims (7)

In a binding portion which is capable of firmly coupling a metal pipe with a connecting part such as a connecting part or a connecting part or a connecting socket,
Wherein the binding portion includes a body into which a distal end portion of a metal pipe is inserted, an engagement means provided at a distal end portion of the metal pipe, and a lid coupled to the body at a rear end thereof,
The body is formed with a plurality of insertion holes in which a front end portion of a metal pipe can be inserted, and is formed in a plurality of pieces according to a connecting part, a connecting part, a connecting socket, or the like, and each of the insertion holes has a flange protruding outward And a cover is assembled to the flange by an assembly bolt,
When the lid and the body are assembled to the rear end of the engaging means provided at the front end of the metal pipe in a state where the front end portion of the metal pipe is inserted into the body and the body is assembled, Wherein the metal pipe is connected to the metal pipe so that the front end of the metal pipe is intermittently connected to the lid after the insertion of the metal pipe is completed. The method according to claim 1,
Wherein the metal pipe has an O-ring, a pressurizing ring, a tightening ring, and a cover sequentially inserted into the front end of the metal pipe, and the tightening ring is necessarily inserted into the groove formed in the metal pipe to fix the metal pipe. Included. 3. The method of claim 2,
The engaging means is formed with a hermetically-engageable groove that allows the tightening ring to be inserted into the outer periphery of the metal pipe, and the tightening ring inserted into the hermetically-shaped groove has an inner diameter smaller than the outer diameter of the metal pipe, C "shape so that the tightening ring is inserted into the tip end portion of the metal pipe in a cut-away state, and the tightening ring fitted in the formed end portion is automatically inserted into the groove while being automatically released by the elastic force when it is positioned in the groove, Wherein the connecting part of the metal pipe is characterized in that it is joined. The method of claim 3,
When the lid provided at the rear end of the tightening ring is coupled with the main body, the front end of the metal pipe is firmly fixed to the connecting part Wherein the metal pipe is a metal pipe. 5. The method of claim 4,
Wherein a corrosion preventing coating layer is formed on the homethe so that corrosion of the surface of the metal pipe is prevented from occurring in a state where the assembling of the holding ring is completed. 3. The method of claim 2,
A first step and a second step are formed in the insertion hole of the body,
When the front end of the metal pipe is inserted with the packing in the first step, the front end face is closely contacted with the pating,
When the assembly of the lid and the body is completed, the O ring and the guide ring are positioned on the second step, and the press ring located in front of the tightening ring provided on the metal frame is pushed to push the O ring, Wherein the metal pipe is tightly adhered to the outer periphery of the metal pipe to seal the metal pipe, thereby preventing leakage of the metal pipe. 5. The method of claim 4,
Wherein the cover is formed with a fitting hole at the center so that the metal pipe can be inserted therein, and the fitting hole is formed to be larger than the outer diameter of the metal pipe and smaller than the outer diameter of the tightening ring coupled to the metal pipe.

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