KR20190001443U - Plug for tap water piping - Google Patents

Abstract

The present invention relates to a plug body having a threaded portion for insertion into a water pipe along an axial direction and having a seating guide steppedly formed at an end of the threaded portion, A cylindrical washer having an O-ring seating groove formed at a position corresponding to the seating guide, and a cylindrical washer having an O-ring seating groove formed thereon, Wherein the O-ring is seated in the O-ring seating groove when the threaded portion for assembling the plug body rotates and is fixed in position with the cylindrical washer.

Description

Plug for tap water piping}

The present invention relates to a plug for a water pipe, and more particularly to a plug for a water pipe which is used to temporarily prevent fluid or gas from flowing out of the pipe after completion of piping work such as a water pipe or a sprinkler .

Generally, water piping is installed in most buildings as well as in newly built buildings. In order to measure the water pressure inside the water piping before completion or repair of the building, an open water pipeline having no faucet And the water pressure in the pipe is measured while the plug for piping is tightly closed by screwing.

At this time, it is a main function of the water piping plug to prevent the tap water in the water piping from leaking from the piping end, and the packing inserted in the water piping plug is configured to receive the screwing force of the plug body to maintain the sealing force.

The conventional design of the Korean Utility Model Registration No. 30-151344 entitled " water pipe closing plug "has a structure in which an annular groove for seating an O-ring is formed in a shaft portion formed with a threaded portion.

Therefore, when the O-ring is fastened to the water pipe in a state where the O-ring is accommodated in the annular groove as described above, the O-ring protruding at a predetermined height from the annular groove is closely attached to the water pipe, thereby blocking water leakage.

However, registration design No. 30-151344 has the disadvantage that the annular groove and the threaded portion are arranged to separate the core in the axial direction, and the molding cycle is very long in order to form the annular groove and the threaded portion, The life of the mold is shortened.

In addition, Registration Design No. 30-151344 has a drawback that the O-ring is broken at the place where the annular groove in which the O-ring is inserted is formed, thereby causing a great loss of work.

In addition, in the Korean Patent Office Registration No. 20-0384877 entitled "Piping cap for water pressure measurement ", when forming a U-shaped packing insertion groove in a water pipe for capillary measurement, an outer periphery of a supporting cap formed in a pipe cap is separately manufactured A groove washer is inserted and a packing insertion groove having a U-shaped cross section is formed in such a state that the tip of the groove washer supports the top of the packing.

Accordingly, the pipe cap for water pressure measurement configured as described above is tightly attached to the packing inserted into the groove washer and the U-shaped packing insertion groove fitted to the support tuck portion, and airtightness is ensured. In addition, the pipe stopper is easily manufactured, The leakage preventing force is excellent.

However, although it has been disclosed that the pipe stopper for water pressure measurement of No. 20-0384877 separates the groove washer freely in the detailed description of the present invention, in the actual assembled state, the groove washer is axially inserted through the threaded portion of the pipe stopper, When the O-ring is inserted into the packing insertion groove, the O-ring is not easily released from the U-shaped packing insertion groove due to the elastic force. Therefore, it is very difficult to remove the O-ring from the packing insertion groove of the pipe plug when the O- Of course, it is difficult to easily separate the groove washer from the pipe stopper even when the groove washer is worn or partially damaged, so that maintenance and repair are difficult.

In addition, the pipe stopper for measuring hydraulic pressure of No. 20-0384877 has a threaded portion formed on the outside and formed into a hollow state for centering on the axis of the portion where the C-shaped packing insertion groove is formed so as to tighten the pipe cap with a large force, There is a drawback that the packing is broken in the insertion groove, thereby causing a great loss of work.

The object of the present invention is to provide a method of assembling a plug body and a cylindrical washer, which are independently coupled to each other so as to rotate independently, by forming a seat guide on a plug body, placing an O- The O-ring is positioned between the O-ring seating groove and the seating guide, so that the O-ring is rotated together when the plug body for engagement with the water pipe is rotated to prevent the O-ring from being damaged due to rotation of the plug body And a plug for the water piping.

The plug for a water pipe according to the present invention includes a plug body having a threaded portion protruding to be inserted into a water pipe along an axial direction and having a seating guide stepped at an end of the threaded portion, A cylindrical washer having an O-ring seating groove formed at a position corresponding to the seating guide, and an O-ring seating groove formed in the O-ring seating groove, And an O-ring supported by the threaded portion, wherein the O-ring is seated in the O-ring seating groove when the threaded portion for assembling the plug body rotates and is fixed together with the cylindrical washer.

Here, the plug body is formed to face the inner circumferential surface of the cylindrical washer, the cylindrical washer being engaged with the body, the screw portion and the seat guide being provided at one end, A latching jaw for guiding the engaging position when the cylindrical washer is engaged, and a turning handle integrally coupled to the engaging jaw and protruding to guide the rotation of the main body.

The rotary knob has a non-slip member coupled to both sides of the grip for rotation about the plug body.

In addition, the cylindrical washer has a shape in which the diameter of one end portion, which is engaged with the engagement protrusion, gradually decreases toward the other end portion.

Meanwhile, the O-ring is formed to have a height higher than the step height of the O-ring seating groove, and is seated so as to protrude from the end of the cylindrical washer.

The O-ring is formed to have a width shorter than the distance between the seating guide and the O-ring seating groove measured when the plug body and the cylindrical washer are coupled.

In addition, the cylindrical washer is provided in plurality along the inner circumference of the O-ring seating groove, and has a protruding member formed to provide a frictional force with the O-ring seated inside.

The plug body is formed to face the inner circumferential surface of the cylindrical washer, and has a cylindrical washer at a hooked position, a body having the screw portion and the seating guide at one end thereof, and a body integrally coupled to the cylindrical washer, And a turning handle which is protrudingly formed so as to be grasped and guides the rotation of the main body.

In the meantime, the plug for a water pipe according to the present invention includes a plurality of fixing holes for inserting and joining the cylindrical washer, and a fixing table formed to fix a position of the cylindrical washer and to maintain a constant interval between the water pipes .

According to the present invention, in the coupling of the plug body and the cylindrical washer to be independently rotated, a seat guide is formed in the plug body, and an O-ring is seated in an O-ring seating groove provided in the cylindrical washer, The o-ring is positioned between the o-ring seating groove and the seating guide, so that the O-ring is rotated together when the plug body for engagement with the water pipe is rotated to prevent the O-ring from being damaged due to rotation of the plug body .

In addition, since the plug body and the cylindrical washer are assembled with the O-ring in the water pipe, the leakage of water occurring between the interface between the plug body and the cylindrical washer can be reliably prevented, So that the O-ring can be prevented from being detached from the O-ring seating groove.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a plugging state of a water pipe plug according to an embodiment of the present invention; FIG.
FIG. 2 is a view showing a state in which a plug for a water pipe according to an embodiment of the present invention is separated. FIG.
3 is a view showing an O-ring seating groove for a water pipe plug according to an embodiment of the present invention.
4 is a view showing an O-ring seating state of a plug for a water pipe according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a combination of a plug body and a cylindrical washer with respect to a plug for a water pipe according to an embodiment of the present invention. FIG.
6 to 7 are views showing an embodiment of a plugging state of a water piping plug according to an embodiment of the present invention.
FIG. 8 is a view showing a fixing stand and a mounting state of the plug for the water pipe according to the embodiment of the present invention. FIG.

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

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish it, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

It will be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To the person having the invention, and this invention is only defined by the scope of the claims.

Further, in the description of the present invention, if it is judged that related art or the like may obscure the gist of the present invention, a detailed description thereof will be omitted.

FIG. 1 is a view showing a plugging state of a water piping plug according to an embodiment of the present invention, and FIG. 2 is a view showing a plugging state of a water piping plug according to an embodiment of the present invention.

FIG. 3 is a view showing an O-ring seating groove for a plug for a water pipe according to an embodiment of the present invention, and FIG. 4 is a view showing an O-ring seating state of a plug for a water pipe according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a combination of a plug body and a cylindrical washer with respect to a plug for a water pipe according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view showing an engagement state of a plug for a water pipe according to an embodiment of the present invention Fig.

As shown in Figs. 1 and 2, the plug for a water pipe according to the present embodiment includes a plug body 100, a cylindrical washer 200, and an O-ring 300. As shown in Fig.

First, the plug body 100 is used to temporarily prevent the fluid or gas inside the pipe from coming out of the pipe after completing the piping operation of the water pipe, the sprinkler, etc., and the cylindrical washer 200 A threaded portion 100a for insertion into the water pipe along the axial direction is protruded.

The plug body 100 is provided with a seating guide 100b formed in a stepped shape at an end of the threaded portion 100a and having a groove shape.

The plug body 100 includes, for example, a main body 110, a latch 120, and a turning handle 130.

The main body 110 is formed to face the inner circumferential surface of the cylindrical washer 200 when the cylindrical washer 200 is coupled to the cylindrical washer 200 and the rest except for the screw portion 100a is positioned inside the cylindrical washer 200.

In other words, a threaded portion 100a for inserting into the water pipe when the cylindrical washer 200 is coupled with the body 110 is protruded outward from the body 110, and a seat guide 100b for positioning the O- And is exposed to the outside.

It is preferable that the body 110 is formed in a shape of '+' instead of being formed in a cylindrical shape. This is because not only the manufacturing cost can be reduced through the weight of the body 110 but also the area of friction with the cylindrical washer 200 So that the frictional force can be reduced when the main body 110 is rotated independently of the cylindrical washer 200. [

The engaging jaw 120 is formed at the other end of the main body 110 and is formed to guide the engaging position when the cylindrical washer 200 is engaged.

That is, when the cylindrical washer 200 is coupled so as to enclose the main body 110, the one end of the cylindrical washer 200 may have a diameter difference So that the engagement position of the cylindrical washer 200 can be guided.

The turning handle 130 is integrally coupled to the engaging jaw 120 and is protruded from the lower portion of the engaging jaw 120 so as to be grasped by the user so that the threaded portion 100a is rotated The rotation of the main body 110 is guided.

The turning handle 130 may include a non-skid member 132 coupled to both sides of the grip body 130 for rotation about the plug body 100.

It is preferable that the non-slip member 132 is formed of a material such as rubber or the like. When the user rotates the threaded portion 100a to insert the threaded portion 100a into the water pipe while grasping the turning handle 130, It enables rotation.

The cylindrical washer 200 is fitted to the outer circumferential surface of the plug body 100 and is rotatable independently from the plug body 100. The cylindrical washer 200 has an O- 210).

As shown in FIG. 5, the cylindrical washer 200 is formed into a tapered shape in which the diameter of one end of the cylindrical washer 200, which is engaged with the stop 120, gradually decreases toward the other end located opposite to the seat guide 100b .

This is for the purpose of securing the cylindrical washer 200 on the plug body 100 by the difference in diameter so that the engagement position is fixed without having a separate member for fixation when the cylindrical washer 200 is engaged And the coupling and position fixing of the cylindrical washer 200 with respect to the plug body 100 can be facilitated.

When the screw 100a is inserted into the water pipe for the assembly of the plug body 100, the diameter of the other end of the cylindrical washer 200 corresponds to the diameter of the water pipe to easily support the water pipe As shown in Fig.

The O-ring 300 is provided to prevent leakage of water generated at the interface between the plug body 100 and the cylindrical washer 200. The O-ring 300 is formed of a material such as rubber having elasticity, Is formed to be equal to or larger than the diameter of the groove (210).

3, the O-ring 300 has an O-ring seating groove 210 which is stepped inward from the other end of the cylindrical washer 200, as shown in FIG. 3, The inner peripheral surface is positioned on the seating guide 100b and its position is fixedly supported by the threaded portion 100a.

A plurality of protruding members 212 may be installed along the longitudinal direction of the O-ring seating groove 210. The O-ring 300 may provide frictional force to the O- So that it can be easily fixed in position.

The O-ring 300 is seated in the O-ring seating groove 210 when the screw portion 100a for assembling the plug body 100 rotates and is fixed together with the cylindrical washer 200.

That is, the O-ring 300 is not rotated together with the plug body 100 while being in tight contact with the seat guide 100b for rotation of the screw portion 100a, It is fixed to the cylindrical washer 200 and its position can be fixed even when the plug body 100 rotates.

If the threaded portion 100a is rotated to insert the threaded portion 100a into the water pipe while holding the cylindrical washer 200, if the inner circumferential surface of the O-ring 300 is placed in contact with the plug body 100 and rotated together, The leakage of the water generated at the interface between the plug body 100 and the cylindrical washer 200 can be prevented from being generated due to the friction between the plug body 100 and the cylindrical washer 200, It becomes difficult to certainly prevent it.

The width A of the O-ring 300 is shorter than the length B of the gap between the seating guide 100b and the O-ring seating groove 210 measured when the plug body 100 and the cylindrical washer 200 are engaged, As shown in Fig.

Even when the width of the O-ring 300 does not coincide with the distance between the seating guide 100b and the O-ring seating groove 210, when the threaded portion 100a is inserted into the water pipe, The gap between the seating guide 100b and the o-ring seating groove 210 can be shielded by the O-ring 210 depending on the characteristics of the O-ring 210. As a result, Leakage occurring at the interface between the washer 200 can be reliably prevented.

4, the O-ring 300 may have a length greater than the step height of the O-ring receiving groove 210, and may be seated so as to protrude from the other end of the cylindrical washer 200.

More preferably, the O-ring 300 is about 1/2 of the height and is seated in the O-ring seating groove 210 so as to protrude from the other end of the cylindrical washer 200. If the O- It is difficult to effectively seal the interface between the plug body 100 and the cylindrical washer 200 because the area spreading close to the water pipe becomes relatively small.

In addition, if the height of the O-ring 300 is protruded to a height of about 1/2 or more, the O-ring 300 may be separated from the O-ring seating groove 210. As a result, And is seated in the O-ring seating groove 210 so as to protrude from the other end of the washer 200.

Meanwhile, the plug body 100 according to the present embodiment includes a main body 110 and a turning handle 130 as another example.

6 to 7, the plug body 100 includes a main body 110 as in the above-described example. The main body 110 is formed to face the inner peripheral surface of the cylindrical washer 200 While the cylindrical washer 200 is engaged with the threaded portion 100a, and a threaded portion 100a and a seating guide 100b are provided at one end.

The turning handle 130 is also integrally coupled to the cylindrical washer 200 in the same manner as the turning handle 130 in the above-described example, and is gripably protruded to guide the rotation of the main body 110. [

The plug body 100 according to the present embodiment has a structure in which the stopping protuberance 120 is removed so that the turning handle 130 is engaged with the stopping protrusion 120 protruding from the outer circumferential surface of the main body 110 But may be directly hooked to the main body 110, thereby achieving a structural simplification due to the removal of the outer rim 120.

That is, the cylindrical protruding portion 200 is formed in the cylindrical washer 200 so that the protruded region of the cylindrical washer 200 protrudes from the inner circumferential surface of the cylindrical washer 200 to the cylindrical washer 200, May be engaged with the main body 110.

FIG. 8 is a view showing a fixing table and a mounting state of the plug for a water pipe according to an embodiment of the present invention.

As shown in Fig. 8 (a), the plug for a water pipe according to the present embodiment further includes a fixing table 400. Fig.

When the plug body 100 is inserted into a pair of water pipes arranged at predetermined intervals, the fixing table 400 serves to guide the gap between the water pipes to be constant.

If a plug body 110 is exposed to the outside in a pair of water pipes at a construction site or the like, an impact may be applied to the plug body 110 due to pressure, impact, etc. In this case, A problem may arise in which the distance between the first and second electrodes is widened or narrowed.

Accordingly, the fixing table 400 according to the present embodiment prevents the distance between the water pipes from being deformed in advance, and a plurality of fixing holes H are formed along the longitudinal direction corresponding to the intervals between the various water pipes And a cylindrical washer 200 coupled to the plug body 110 as shown in FIG. 8 (b) is inserted into the fixing hole H It is possible to prevent the problem that the interval between the water pipes is varied due to external pressure, impact, or the like.

The size of the fixing hole H may vary depending on the diameter of the water pipe, but the diameter of the cylindrical washer 200 is always the same. Therefore, the size of the cylindrical washer 200 It is possible to apply the fixing table 400 regardless of the change in diameter, and workability can be improved.

According to the present invention, in the coupling of the plug body and the cylindrical washer to be independently rotated, a seat guide is formed in the plug body, and an O-ring is seated in an O-ring seating groove provided in the cylindrical washer, The o-ring is positioned between the o-ring seating groove and the seating guide, so that the O-ring is rotated together when the plug body for engagement with the water pipe is rotated to prevent the O-ring from being damaged due to rotation of the plug body .

In addition, since the plug body and the cylindrical washer are assembled with the O-ring in the water pipe, the leakage of water occurring between the interface between the plug body and the cylindrical washer can be reliably prevented, So that the O-ring can be prevented from being detached from the O-ring seating groove.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that all or some of the elements (s) may be optionally constructed in combination. Therefore, the true scope of technical protection of this invention shall be determined by the technical idea of the appended utility model registration claim scope.

100: Plug body 100a: Screw
100b: seat guide 110:
120: Jaw jaw 130: Turning knob
132: nonslip member 200: cylindrical washer
210: O-ring seating groove 300: O-ring
400: Fixture H: Fixing hole

Claims (9)

A plug body having a threaded portion protruding to be inserted into the water pipe along an axial direction and having a seating guide stepped at an end of the threaded portion;
A cylindrical washer coupled to the outer circumferential surface of the plug body so as to be independently rotatable and having an O-ring seating groove formed at a position corresponding to the seating guide; And
And an O-ring which is seated on the O-ring seating groove so that the outer circumferential surface thereof is closely contacted and supported, and the inner circumferential surface of which is positioned on the seating guide and is supported by the threaded portion,
Wherein the O-ring is seated in the O-ring seating groove when the screw portion is rotated to assemble the plug body, and the position is fixed together with the cylindrical washer.
The method according to claim 1,
The plug body includes:
A cylindrical body formed to face the inner circumferential surface of the cylindrical washer and adapted to receive the cylindrical washer and having the threaded portion and the seating guide at one end;
A locking protrusion formed at the other end of the main body and guiding a coupling position when the cylindrical washer is engaged; And
And a turning handle integrally coupled to the latching jaw and protrudingly formed to be capable of gripping to guide rotation of the main body.
3. The method of claim 2,
The rotary knob
And a non-slip member coupled to both sides of the plug body for gripping for rotation with respect to the plug body.
3. The method of claim 2,
Wherein the cylindrical washer
And the diameter of the one end portion of the stopper is smaller than that of the other end portion.
The method according to claim 1,
The O-
And a bottom surface of the cylindrical washer protruding from the end of the cylindrical washer.
The method according to claim 1,
The O-
And a width of a length of a length of the gap between the seating guide and the o-ring seating groove measured when the plug body is coupled with the cylindrical washer.
The method according to claim 1,
Wherein the cylindrical washer
And a plurality of protrusions formed along the inner circumference of the O-ring seating groove to provide a frictional force with the O-ring seated in the O-ring seating groove.
The method according to claim 1,
The plug body includes:
A cylindrical body formed to face the inner circumferential surface of the cylindrical washer and adapted to receive the cylindrical washer and having the threaded portion and the seating guide at one end; And
And a turning handle integrally joined to the cylindrical washer and protruding from the cylindrical washer to guide rotation of the main body.
The method according to claim 1,
Further comprising a fixing base having a plurality of fixing holes for fixing the position of the cylindrical washer so that the gap between the water pipes is maintained constant, .

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