KR101440268B1 - Sealing cap for a pipe - Google Patents

Sealing cap for a pipe Download PDF

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Publication number
KR101440268B1
KR101440268B1 KR1020140085345A KR20140085345A KR101440268B1 KR 101440268 B1 KR101440268 B1 KR 101440268B1 KR 1020140085345 A KR1020140085345 A KR 1020140085345A KR 20140085345 A KR20140085345 A KR 20140085345A KR 101440268 B1 KR101440268 B1 KR 101440268B1
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KR
South Korea
Prior art keywords
pipe
wall
pressing
stopper
contact
Prior art date
Application number
KR1020140085345A
Other languages
Korean (ko)
Inventor
정종섭
Original Assignee
정종섭
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정종섭 filed Critical 정종섭
Priority to KR1020140085345A priority Critical patent/KR101440268B1/en
Application granted granted Critical
Publication of KR101440268B1 publication Critical patent/KR101440268B1/en
Priority to PCT/KR2015/004489 priority patent/WO2016006814A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

The present invention is characterized in that a stopper is fastly and tightly attached to an end wall of a pipe while being fastened to the end of the pipe in a simple and quick manner and thus the stopper is prevented from being pushed or released even under strong fluid pressure or vibration, For example.
That is, according to the present invention, there is formed a single body, a top portion is closed, a hollow portion is opened at the bottom, a lower outer wall is formed with a side contact surface which can be closely fitted to the inner wall of the pipe, A flange for supporting the tip end of the support member,
A pressing protrusion protruding upward from the upper center of the upper surface of the contact support portion and provided with a side pressing surface of the upper side wall and a downward inclined surface of the lower side wall,
And a cut portion provided between the inner diameter upper end of the contact support portion and the outer side of the lower end of the slope of the pressing protrusion.

Description

Sealing cap for a pipe

The present invention relates to a pipe sealing cap, and more particularly, to a pipe sealing cap which can be easily and quickly fastened to an end of a pipe and is tightly supported on the inner wall to be prevented from being pushed or released by strong fluid pressure or vibration Thereby reducing the number of parts and lowering the manufacturing cost.

Generally, when a cap is provided at the end of a pipe, it is necessary not only to block the inflow of foreign substances into the inside of the pipe, but also to install all the power devices, piping necessary for transportation and movement of fluids such as liquid and gas, The end of the pipe is sealed by closing the stopper to block the flow of the fluid.

As a means for installing a stopper at the end of a conventional pipe, there are a means for hitting a wedge-shaped stopper with a hammer or the like and forcingly fixing the stopper, a means for welding a stopper for welding the pipe stopper and the pipe, And screw fastening means such as a cap screw for fastening and fixing a female threaded portion inside the end portion of the pipe.

The means for fixing the wedge-shaped stopper by means of the forcible fitting is such that the wedge is fixed to the end portion of the pipe while being pushed in, and the close supporting force between the inner wall of the pipe and the side wall surface of the wedge falls, It is not suitable as a stopper for blocking the fluid pressure and is mainly used for the purpose of preventing the foreign material from being blocked inside the pipe.

As a plug used for cutting off the end of the pipe to which a strong fluid pressure is applied in the inside of the pipe, a welding means of the plug or a screw coupling means of the plug is used.

In addition, the screw-engaging means of the plug uses means for forming a male screw portion on a part of the pipe stopper and forming a female screw portion inside the end portion of the pipe and screwing and fixing the screw, In addition to requiring the process, the workability is greatly reduced since the pipe can not be joined to the pipe without the threaded tab immediately after cutting the pipe in the field, and the packing is not used because it is not completely sealed by screwing only. In particular, when a pipe stopper is screwed into a place where vibrations occur, such as an automobile pipe, there is a problem that the screwed portion of the pipe stopper is loosened due to the vibration transmitted from the vehicle or is pushed out by the fluid pressure have.

In view of the above-mentioned problem of the screw-engaging means of the plug, the 'pipe stopper' of the Utility Model Registration No. 20-0461502 as a prior art has a first body portion and a female screw portion extending to one side of the first body portion, A nut-shaped main body having a second body portion; A bolt member having a shaft having a male screw portion formed on an outer surface thereof so as to be screwed to the female screw portion of the nut type body and a head having a diameter larger than the diameter of the shaft at an end portion of the shaft; And a ring portion disposed between the nut type body and the bolt member, the cut portion having a cut through hole through which the shaft passes, and a ring portion extending outwardly from the cut through hole, wherein the ring portion is disposed obliquely, A snap ring washer formed elongate and resiliently hermetically supported on the inner wall of the pipe when the head is pressed; A pressing member disposed between the nut type body and the snap ring washer to maintain elasticity of the snap ring washer while transmitting a pressing force of the bolt member to the inside of the pipe; And an O-ring interposed between the nut-type main body and the pressing member, thereby preventing bolt loosening of the pipe stopper, or protrusion or dropout of the pipe stopper.

However, even in the case of the prior art disclosed in the above document, due to the structural limitation, not only the overall unit price is increased due to the use of many parts, but also the sealing ring is hermetically supported by the snap ring washer on the inner wall of the pipe. There is a problem that can not exert its power.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and it is an object of the present invention to provide a press- And a stopper for closing the pipe.

That is, according to the present invention, the end of the pipe is inserted into the end of the pipe which is not threaded, and then the end of the pipe is struck by the means for striking the upper surface of the pressure projection, The support portion is a means for pressing the inner wall of the pipe so that the pressurizing protrusion and the contact support portion are tightened by the lateral pressure so that the tight seal can maintain the tight seal without being pushed or released by strong fluid pressure or vibration, Thereby reducing the number and enabling a simple and quick enduring connection.

The upper outer wall is formed with a hollow portion having a closed upper portion and a lower hollow portion. The lower outer wall is formed with a side close contact surface which can be closely fitted to the inner wall of the pipe. A flange provided on the flange and supported by the flange,

A pressing protrusion protruding upward from the upper center of the upper surface of the contact support portion and provided with a side pressing surface of the upper side wall and a downward inclined surface of the lower side wall,

And a cut portion provided between the inner diameter upper end of the contact support portion and the outer side of the lower end of the slope of the pressing protrusion.

The outer diameter of the side pressing surface of the pressing protrusion is larger than the inner diameter of the contact supporting portion and the lower end outer diameter of the inclined surface is smaller than the inner diameter of the contact supporting portion.

And the outside diameter of the side contact surface of the close contact supporting portion is formed to be equal to or smaller than the inside diameter of the pipe to be fitted.

Wherein the cut-out portion is provided with a thin thickness on a thin plate which can be cut by the impact pressure transmitted at the time of hitting the pressing projection so that the contact support portion and the pressing projection are connected.

The pipe sealing cap of the present invention can be easily and quickly fastened to the end of a pipe by using a simple supporting structure, a pressing protrusion, It is possible to maintain a tightly coupled state by tightly closing the valve, and to reduce the manufacturing cost, thereby greatly improving the competitiveness.

Further, according to the present invention, it is possible to firmly connect the cap without screwing or the like at the end of the pipe, and in the state where the cap is attached to the end of the pipe, it can not be easily separated. The stability can be greatly increased.

1 is a perspective view showing a state in which a pipe sealing cap according to the present invention is coupled to a pipe end.
FIG. 2 is a perspective view of a pipe sealing cap according to the present invention before it is coupled to a pipe end; FIG.
3 is a cross-sectional view showing the configuration of a cap for closing a pipe according to the present invention.
Fig. 4 is a cross-sectional view illustrating a state in which a close support portion of a pipe sealing cap according to the present invention is inserted into an end of a pipe; Fig.
FIG. 5 is a cross-sectional view illustrating an action section of a pushing protrusion of a pipe sealing cap according to the present invention, in which a cutout portion is incised and a separated pressurized portion enters a contact support portion.
6 is a cross-sectional view illustrating a state in which a cap for sealing a pipe according to the present invention is coupled to a pipe end to seal the pipe.
7 is a photograph of an embodiment of a pipe sealing cap according to the present invention.
FIG. 8 is a photograph of an embodiment in which a pipe sealing cap according to the present invention is coupled to a pipe end; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

A stopper (100) is provided at an end of a pipe (200) to prevent the stopper (100) from being pushed or released even under a strong fluid pressure or vibration. In addition, the number of parts can be reduced to reduce a manufacturing cost, This is equivalent to a pipe sealing cap.

The stopper 100 of the present invention includes a contact support 110 formed of a single body and fitted to an end of the pipe 200 and a pushing protrusion 120 protruding in a bar shape at an upper center of the contact support 110 And a cutout 130 that allows the lower end of the pressing protrusion 120 to be separated and struck.

The close contact support portion 110 of the present invention has a hollow portion 112 closed at the top and open at the bottom portion and a side contact surface 114 at which the lower outer wall is fitted to the inner wall of the pipe 200 to be in close contact therewith And a flange 116 is formed to allow the upper outer wall to be supported and supported by the end of the pipe 200.

The outer diameter of the side contact surface 114 of the close contact support part 110 is formed to be smaller than or equal to the inner diameter of the pipe 200 to be fitted and to be fitted with a micro clearance so as to facilitate fitting. desirable.

The pressing protrusion 120 protrudes upward from the upper center of the upper surface of the contact support 110 and has a side pressing surface 122 of the upper side wall and an inclined surface 124 gradually downwardly narrowed to the lower side wall, And the lower end outer diameter of the inclined surface 124 is smaller than the inner diameter of the contact supporting portion 110. The outer diameter of the contact supporting portion 122 is larger than the inner diameter of the contact supporting portion 110. [

The inclined surface 124 of the pressing protrusion 120 facilitates the fitting of the inner diameter of the contact support 110 and the side pressure surface 122 of the upper surface of the inclined surface 124 is located on the inner wall of the contact support 110 So that they can be tightly bonded to each other.

That is, when the contact supporting portion 110 is inserted into the end of the pipe 200 and then the pressing protrusion 120 is struck, the inclined surface 124 of the pressing protrusion 120 is fitted into the contact supporting portion 110, And the side pressing surface 122 is brought into contact with the pressing support portion 110 so as to be pressed against the pressing support portion 110 and the side pressing surface 122 of the pressing protrusion 120, So that the close contact supporting portion 110 can be closely contacted with the inner diameter of the pipe 200. [

The cutout portion 130 is formed between the upper end of the inner diameter of the close contact support portion 110 and the outer end of the lower end of the slope face 124 of the press protrusion 120 so as to have a thin thickness on the thin plate, The pressing protrusion 120 is separated from the cut portion 130 and the fitting protrusion 120 is fitted to the pressing protrusion 120 so that the fitting protrusion 120 is fitted to the pressing protrusion 120, .

The thickness of the cutout 130 is sufficient to sufficiently support the contact support 110 and the presser protrusion 120 so that the width of the cutter 130 is cut by a strong impact pressure of the presser protrusion 120, The pressing protrusion 120 may be detached from the cutout 130 and the entire cutout 130 may be separated and separated into cutouts (not shown) However, even if one side of the cutting lug is attached to a part of the lug supporting portion 110 or the pressing lug 120, the lug can be inserted into the lug between the close contact supporting portion 110 and the pressing lug 120, It hardly affects the action.

The stopper 100 may be made of a metal or a synthetic resin having a good ductility and may be made of a metal such as aluminum or copper or a polyethylene resin, a polypropylene (PP) resin, a polycarbonate (PC) resin, Resin or the like so as to be tightly coupled to the end of the pipe 200 having a high hardness.

Also, the pipe 200 to which the plug 100 of the present invention is coupled can be applied to not only a metal such as a steel pipe but also a synthetic resin pipe.

2 and 3, the present invention includes a contact support 110 which is fitted to an end of a pipe 200 in a single body, a pressing protrusion 120 protruding from the upper center of the contact support 110, And a fastening protrusion 120 for fastening the pressing protrusion 120 to the tip of the pipe 200 by means of a stopper 100 having a fastening protrusion It can be sealed permanently even when it is not subjected to vibration or dropout.

4, the tight fitting support portion 110 is directly fitted into the end of the pipe 200 without any additional screw forming or the like, and the fitting state is maintained by the flange 116. Then, by using a striking member such as a hammer, The incision 130 is cut by the impact pressure and the pressing projection 120 is separated from the incision 130 so that the lower inclined face 124 of the pressing projection 120 is separated from the contact supporting portion 110 into the hollow portion 112 of the housing.

5, when the pressing projection 120 is continuously inserted into the contact support 110 by the lower inclined face 124, the pressing projection 120 having an outer diameter larger than the inner diameter of the contact support 110, The side pressing surface 122 of the contact supporting member 110 is pressed while being in close contact with the inner wall of the contact support 110 and the side contact face 114 of the contact support 110 is pressed against the inner wall of the pipe 200 .

The side contact surface 114 of the close contact support portion 110 is pressed against the inner wall of the pipe 200 by the lateral pressure that presses the side pressured surface 122 of the press protrusion 120 against the inner wall of the close contact support portion 110, The pressing protrusion 120 and the close contact support 110 can be tightly adhered to each other by the lateral pressure so that a strong adhesion can be achieved.

At this time, depending on the hardness of the pipe 200, the end of the pipe 200, to which the plug 100 is coupled by the lateral pressure of the pressing protrusion 120, So as to maintain a closely adhered state at a lateral pressure enough to flare up.

As described above, according to the present invention, the welded steel pipe with joints can be easily combined with the pipe (200) having the inner diameter surface by using the plug (100) according to the present invention, The end of the pipe 200 is cut at the site when the cap 200 is installed at the end of the pipe 200 to close the pipe 200. The end of the pipe 200 is cut at the site and then the close support 110 is inserted into the cut portion, So that it is possible to simplify the joining operation of the stopper to be coupled permanently even if only the fitting is performed, and the work productivity can be improved.

While the present invention has been described with reference to the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: cap 110: close contact support
112: hollow portion 114: side contact surface
116: flange 120: pressing projection
122: side pressing surface 124: inclined surface
130: incision section 200: pipe

Claims (5)

It consists of a single body configuration.
The lower outer wall is formed with a side contact surface 114 that can be closely fitted to the inner wall of the pipe 200 and the upper outer wall is connected to the pipe 200, (110) having a flange (116) formed to be able to be supported on and supported by an end of the flange
A pressing protrusion 120 protruding upward in the upper center of the upper surface of the contact supporting portion 110 and provided with a side pressing surface 122 of the upper side wall and a downward inclined surface 124 of the lower side wall,
And a cutout part (130) provided between an inner upper end of the contact support part (110) and an outer side of the lower end of the inclined face (124) of the pressing protrusion part (120).
The method according to claim 1,
The outer diameter of the side pressing surface 122 of the pressing protrusion 120 is larger than the inner diameter of the contact supporting portion 110 and the lower end outer diameter of the inclined surface 124 is smaller than the inner diameter of the contact supporting portion 110 And a stopper for closing the pipe.
The method according to claim 1,
Wherein an outer diameter of the side contact surface (114) of the close contact supporting portion (110) is formed to be equal to or smaller than an inner diameter of the pipe (200) to be fitted.
The method according to claim 1,
The cutout portion 130 has a thickness of a thickness on a thin plate which can be cut by the impact pressure transmitted when the contact support portion 110 and the pressing protrusion 120 are connected and hitting the pressing protrusion 120 Wherein the stopper is made of a metal.
The method according to claim 1,
Wherein the stopper is made of metal or synthetic resin.



KR1020140085345A 2014-07-08 2014-07-08 Sealing cap for a pipe KR101440268B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020140085345A KR101440268B1 (en) 2014-07-08 2014-07-08 Sealing cap for a pipe
PCT/KR2015/004489 WO2016006814A1 (en) 2014-07-08 2015-05-06 Pipe sealing cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140085345A KR101440268B1 (en) 2014-07-08 2014-07-08 Sealing cap for a pipe

Publications (1)

Publication Number Publication Date
KR101440268B1 true KR101440268B1 (en) 2014-10-23

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Application Number Title Priority Date Filing Date
KR1020140085345A KR101440268B1 (en) 2014-07-08 2014-07-08 Sealing cap for a pipe

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KR (1) KR101440268B1 (en)
WO (1) WO2016006814A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030022714A (en) * 2001-09-10 2003-03-17 다이덴 가부시키가이샤 Closure structure with a plug
KR200335601Y1 (en) 2003-09-18 2003-12-11 하만호 A Supporting Device Of A Paper Pipe
KR20060127833A (en) * 2006-11-22 2006-12-13 전찬웅 A stopper for cooling pipe of dye
KR20140027065A (en) * 2010-11-03 2014-03-06 카베테-쾨니히 그룹 Element, preferably a closing element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030022714A (en) * 2001-09-10 2003-03-17 다이덴 가부시키가이샤 Closure structure with a plug
KR200335601Y1 (en) 2003-09-18 2003-12-11 하만호 A Supporting Device Of A Paper Pipe
KR20060127833A (en) * 2006-11-22 2006-12-13 전찬웅 A stopper for cooling pipe of dye
KR20140027065A (en) * 2010-11-03 2014-03-06 카베테-쾨니히 그룹 Element, preferably a closing element

Also Published As

Publication number Publication date
WO2016006814A1 (en) 2016-01-14

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