KR20150031636A

KR20150031636A - For pipe welding cap

Info

Publication number: KR20150031636A
Application number: KR20130111077A
Authority: KR
Inventors: 박태모
Original assignee: 박태모
Priority date: 2013-09-16
Filing date: 2013-09-16
Publication date: 2015-03-25

Abstract

The present invention relates to a welding cap for piping, and more particularly, to a piping cap for preventing foreign matter from flowing into the inside of a piping and preventing a fluid inside the piping from flowing out to the outside To improve the airtightness of the piping, to facilitate the fabrication thereof, to reduce the time and cost required for the fabrication, and to a method of manufacturing the same.
According to an aspect of the present invention, there is provided a piping cap for preventing foreign matter from flowing into the inside of a piping or flowing out of the inside of the piping by being connected to an end of the piping, wherein the cap has a predetermined height and width Wherein the tapered surface is formed in the shape of a circular tube and the outer periphery of the opened upper part is gradually lowered toward the lower side so that the outer peripheral edge of the tapered surface and the pipe are joined by welding operation do.
A first step of inserting a heated round bar between the upper mold and the lower mold to be engaged with the upper mold to perform extrusion molding; And a second step of forming a tapered surface on the outer circumferential edge of the upper end of the round bar taken out as an extrusion die.

Description

Technical Field [0001] The present invention relates to a welding cap for a pipe,

The present invention relates to a welding cap for piping, and more particularly, to a piping cap for preventing foreign matter from flowing into the inside of a piping and preventing a fluid inside the piping from flowing out to the outside To improve the airtightness of the piping, to facilitate the fabrication thereof, to reduce the time and cost required for the fabrication, and to a method of manufacturing the same.

In general, a pipe of a pipe for transporting a fluid is connected to two or more pipes and, depending on the use of the facility, an additional branch pipe is formed to help transport the fluid.

Here, when the use of the used pipe is interrupted, the end of the pipe is cut off to prevent foreign matter from entering or flowing out of the facility.

The conventional piping cap for blocking the end of the pipe is generally composed of a blank flange, a centering ring, and a clamp, wherein the blanking clan is formed with a fitting groove for inserting a centering ring to be hung on the upper surface of the annular plate .

The centering is formed by a cylindrical tube whose both sides are opened so that one side is inserted into the fitting groove of the blank flange and the other side is inserted into contact with the inner diameter of the pipe, and a sealing member is provided on the outside.

Further, the clamp supports the coupling of the centering ring inserted with the inner diameter of the pipe and the pipe and the blank flange fitted with the centering ring, and one side of the two semicircular rings having the hooking jaws at the upper and lower sides is hingedly engaged by the hinge- And the other side is formed with a protruding end.

According to this configuration, the user inserts one side of the centering into the fitting groove of the blank flange, and then places the other side of the centering ring at the end of the pipe to be cut.

Next, the semicircular ring of the clamp is widened to both sides to wrap the pipe and the blank flange, and then the semicircular ring is moved inward so that the outer diameter of the pipe and the outer surface of the blank flange are in contact with the engaging jaw.

Thereafter, a screw is inserted into the through hole formed in the end portion of the semicircular ring, and the screw is engaged with the operating member to fix the clamp.

Thus, the end of the pipe is blocked by the blank flange, and the leakage of the fluid inside the pipe is prevented by the sealing member of the centering.

However, since the conventional piping cap has a complicated structure and a complicated process, it is difficult to install the pipe when the pipe is installed at a narrow place or when a plurality of pipes are installed adjacent to the pipe, there was.

As a result of such a problem, recently, a cap for piping configured as a screw type coupling structure has been used. However, since the structure of the piping cap is complicated, it is difficult to manufacture the piping cap, And the production efficiency is remarkably lowered.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a structure capable of efficiently performing installation work by simplifying the construction and combining process, and preventing a user's mistake, And it is an object of the present invention to provide a weld cap for piping.

Another object of the present invention is to provide a method of manufacturing a welding cap for a pipe, which can be easily manufactured as the structure is simple and time and cost for manufacturing can be reduced, thereby maximizing production efficiency.

In order to achieve the above object, according to the present invention, there is provided a piping cap coupled to an end of a piping for preventing foreign matter from flowing into a piping or flowing out of a fluid inside the piping, A tapered surface which is formed in the shape of a circular tubular body having a predetermined height and a width and which is gradually lowered toward the lower side is formed at the outer periphery of the opened upper part, and the outer circumferences of the tapered surface and the pipe are joined by welding work. And a welding cap for welding.

A first step of inserting a heated round bar between the upper mold and the lower mold to be engaged with the upper mold to perform extrusion molding; And a second step of forming a tapered surface on the outer circumference of the upper end of the round bar taken out as an extrusion mold.

The welding cap for piping according to the present invention is simple in construction and in the joining process, and can efficiently perform the installation work, can prevent the user from making mistakes that may occur during installation, and has a simple structure And it is possible to maximize the production efficiency by reducing the time and cost required for the production.

1 is a longitudinal sectional view and a perspective view showing a manufacturing process of the present invention;
Fig. 2 is a longitudinal sectional view showing a state before the round bar is inserted into the mold. Fig.
Fig. 3 is a vertical sectional view showing a state in which a round bar is inserted into a metal mold. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a longitudinal sectional view and a perspective view showing a manufacturing process of the present invention, FIG. 2 is a longitudinal sectional view showing a state before a round bar is inserted into a mold in the manufacturing process of the present invention, and FIG. FIG. 7 is a longitudinal sectional view showing a state of being inserted into a mold.

The present invention relates to a welding cap (100) for piping which is connected to an end of a pipeline not to be used and in which foreign matter flows into the inside of the pipeline or a fluid in the pipeline is prevented from flowing out.

As shown in FIG. 1, the welding cap 100 for a pipe according to the present invention is formed in the shape of a circular tubular body having a predetermined height and width with an open top and a tapered portion A surface 1 is formed and the tapered surface 1 and the outer periphery of the pipe are joined by a welding operation.

Here, the height and width of the welding cap 100 can be adjusted according to the outer diameter of the pipe to be connected, and accordingly, the width and angle of the tapered surface 1 formed at the outer periphery of the upper opening naturally can be adjusted .

In manufacturing the welding cap 100, the first step is to insert a round bar 4 between the upper mold 2 and the lower mold 3 to be engaged with the upper mold 2, as shown in FIG. And the entire outer shape of the welding cap 100 is extruded.

Before the first step, the round bar 4 is cut to an appropriate size so as to be proportional to the size and the width of the weld cap 100 to be manufactured, and then heated to a state capable of being extruded by a mold The work to be done must be preceded.

As shown in FIG. 1 (b), the round bar 4 having a shape as shown in FIG. 1 (a) is taken out through the first step. And the tapered surface 1 is gradually lowered toward the lower side, so that the manufacturing process of the welding cap 100 is completed.

The welding cap 100 for a pipe according to the present invention completed through the above-described series of processes has a shape as shown in FIG. 1 (c). The shape of the welding cap 100 is shown in FIG. The present invention is not limited to the shape as described above and may be any shape as long as it has a structure capable of being connected to the end of the pipe to prevent foreign matter from flowing into the pipe, Variations and modifications are possible.

In order to implement the welding cap 100 for a pipe according to the present invention, it is difficult to install the welding cap 100 when the location where the pipe is installed is narrow or the number of other pipes is close to the periphery of the pipe, There has been a problem that a user's mistake is caused in installation, and since the structure is complicated, fabrication is not easy, time and cost for manufacturing are increased, and production efficiency is remarkably lowered .

However, as shown in FIG. 1, the welding cap 100 for a pipe according to the present invention is formed in the shape of a circular tubular body having a predetermined height and width with an open top and a tapered surface The tapered surface 1 and the outer circumferential surface of the pipe are joined by a welding operation. Further, since the tapered surface 1 is manufactured through a series of processes as described above, .

As described above, the welding cap 100 for a pipe according to the present invention has a simple structure and a simple joining process, so that the installation work can be efficiently performed, the user's mistake that may occur during installation can be prevented, It is easy to manufacture, and it is possible to maximize the production efficiency by reducing the time and cost required for the production.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be clear to those who have knowledge.

1: taper surface 2: upper mold
3: Lower mold 4: Round bar
100: Welding cap

Claims

A cap for piping which is connected to an end of a pipe to prevent foreign matter from flowing into the inside of the pipe or flowing out of the inside of the pipe, wherein the cap has a shape of a circular tubular body And a tapered surface (1) which is gradually lowered toward the lower side is formed on an outer periphery of an upper part of the opening, and the outer peripheral edge of the tapered surface (1) is joined by welding work.

A first step of inserting a heated round bar (4) between the upper mold (2) and the lower mold (3) to be engaged with the upper mold (2) to perform extrusion molding; And a second step of forming a tapered surface (1) on an outer peripheral edge of an upper end of a round bar (4) taken out as an extrusion die.