KR20110113552A - Branch socket attachment - Google Patents

Abstract

The present invention relates to a branch pipe attachment device for attaching a connection pipe through the inlet hole in the pipe side.
In particular, the inner washer that extends over the inner surface of the inlet hole is larger than the inlet hole and can be divided and folded or the same or smaller in diameter as the inlet hole to be a single inner washer, and the packing for watertightness is common as a separate packing made of tubular body. It is characterized by being used.
Therefore, if the inlet hole is larger than the standard, use the foldable inner washer, and if the standard hole is drilled with a hole cutter, the tubular packing is the same diameter as the inner washer wing. At the same time, it becomes a one-touch fastening branch socket attachment device.

Description

Branch Branch Outlet Fitting System

The present invention relates to a branch pipe socket attachment device for drilling the inlet hole on the side of the main pipe without the use of a pipe and attaching the connection pipe.

In particular, when fastening the inner washer with a plurality of bolts on the inner side of the branch pipe and fastening the inner washer and the branch pipe with a single screw, the inner washer over the inner side of the inlet hole is larger than the inlet hole so that the inner washer is divided and folded or inlet hole. It is the same or smaller in diameter and can be used as one inner washer. The packing for watertightness is characterized by common use as a separate packing made of tubular body.

Therefore, if the inlet hole is larger than the standard, use the foldable inner washer, and if the standard hole is drilled with a hole cutter, the tubular packing is the same diameter as the inner washer wing. At the same time, it becomes a one-touch fastening branch socket attachment device.

Japanese Patent Registration No. 3415900, Japanese Patent Application Laid-Open No. 6-207697, Japanese Patent Application Laid-Open No. 7-332567, Korean Patent Registration No. 0772712, and Korean Patent Application No. 10-2004-0075290 filed by the applicant. .

Japanese Patent Registration No. 3415900 and Korean Patent Registration No. 0772712 slide on a tapered curved surface of a tubular packing surface on a curved blade having an outward curved blade at the lower end of the body having an inclined taper on the upper surface of the inlet hole with a diameter slightly smaller or smaller than the inlet hole diameter. It is a structure that attaches a branch pipe to the packing diameter and the inlet hole with one fastening nut as a structure that is expanded in size, so that the packing material is preferably a soft packing material for preventing watertightness and a hard packing material so that it cannot be pulled out of the inlet hole. In addition, there is a problem that the inlet hole drilled in the pipe is large.

Japanese Patent Laid-Open Publication No. Hei 6-207697 and Japanese Patent Laid-Open Publication No. Hei 7-332567 have a tapered surface at the bottom of the branch pipe and a locking jaw at the end, so that when the harling is tightened, it is enlarged at the tapered surface and becomes larger than the inlet hole. Watertight packing is a structure that pressurizes the inlet hole by taper surface in the saddle bottom and inlet hole while preventing it from being pulled out.

Therefore, they do not have a structure to reliably expand the tubular packing and there is a problem that can not be utilized if the inlet is large.

Korean Patent Application No. 10-2004-0075290 filed by the applicant has a structure in which a hard inner washer larger than the diameter of the inlet hole is bisected and the donut-type packing is caught on the inner surface of the inlet pipe and the inner periphery of the inlet pipe is sealed with a donut-type packing. Branch pipe can not be pulled out even if the inlet hole is large, but the deformed pipe, etc., the packing is pressurized only at one place inside the pipe, which also does not secure watertightness.

In order to solve the above problems, the inner washer while inserting a separate tubular packing vertically into the inlet hole, the inner washer also serves as a cylindrical inner washer that is the same as or slightly smaller than the outer diameter of the inlet hole. Is watertight even if larger than the standard, and if it is the same or smaller, it is vertically inserted into the inlet hole and the multiple bolted and single-screwed structure is designed to enlarge the tubular packing outwardly inwardly from the inlet hole. The development of a branch socket attachment device that is fastened and watertight at the inflow hole is a problem to be solved.

The present invention comprises a branch pipe, a packing, a saddle, an inner washer, a nut, and a plurality of bolts to solve the problems of the background art described above.

The branch pipe is cylindrical from top to bottom as a whole, and has a threaded portion formed at a predetermined distance from the upper edge to the lower edge of the outer periphery, and has a plurality of bolt holes formed at the periphery of the inner surface at the periphery of the inner side thereof. Protruding pipe is plugged into the branch pipe integrally forming the upper packing bottom;

The upper surface is integrally formed with the lower part of the branch pipe while the upper part is integrally formed with the lower part of the branch pipe and the lower surface is curved, and the curved surface larger than the inflow hole diameter at the outer end portion of the lower end of the tubular expansion part is curved. The wing piece is integral and the inner circumference of the tubular contact portion is in contact with the inner washer projecting tube, and some of the outer circumference is in intimate contact with the circumference of the inlet hole, and the curved wing piece larger than the inlet hole is in contact with the inner circumference of the inlet pipe. And watertight means consisting of a packing for expanding the outer diameter of the curved blade piece is expanded to the outward side of the tubular expansion portion of the lower surface of the packing according to the tightening of a plurality of bolts;

The protruding pipe which is attached to the upper threaded part of the branch pipe and wrapped up and down is formed, and is formed with a curved wing piece which is integral with the lower side of the protruding pipe and is placed on the outer surface of the inlet hole peripheral pipe so that the branch pipe is correctly supported at the inlet hole and the correct position. Birds;

A fastening means that is tightened by the branch pipe threaded portion and comprises a nut for pressing the top surface of the saddle protruding pipe;

A protruding tube which is inserted into the lower inner surface of the branch pipe is integrally formed above the central hole of the curved wing piece larger than the inlet hole, and the protruding tube forms a female thread part corresponding to a plurality of bolt holes on the inner surface of the branch pipe. An inner washer that bisects the wing piece up and down and connects the curved wing piece end face with a hinge; And

Assembling means consisting of a plurality of bolts for tightening the branch pipe and the inner washer to expand outwardly the expansion portion under the packing by the inner washer curved wing piece to further increase the outer diameter of the packing curved wing piece;

It consists of and implement | achieves the subject of this invention.

In addition, the cylindrical branch pipe and the upper part of the packing is a tubular packing, and the outer surface of the lower end of the tubular expansion portion of the lower end of the packing, even if there is an arrow-shaped curved blade piece 730 larger than the inlet hole diameter, A longitudinal groove 725 is formed (refer to FIG. 9), the diameter of which is reduced so that it can be easily plugged into the inlet hole, thereby making work easier, and the outer periphery of the tubular packing selected to the inlet hole contacts the inlet hole side and is packed. Inner contact is tightened by multiple bolt tightening and tightening nut on the outer surface of branch pipe by tightening the bolts which are wider than inlet hole by close contact between protruding pipe 360 and bulge 369 of inner washer. Watertight to the periphery and the inlet hole, and when the caulking material 727 is added, it becomes three to four times watertight to solve the problem of the present invention. In addition, a longitudinal groove 725 may be formed on the outer surface of the tubular packing or on the inner and outer surfaces thereof to facilitate insertion into the inlet hole, but the watertightness should be secured through close contact with the outer surface of the packing.

Then, in order to integrate the lower part of the branch pipe and the upper part of the packing, a groove frame 211 is formed at the peripheral part of the lower part of the branch pipe, and a protrusion 711 corresponding to the groove part of the lower peripheral part of the branch pipe is formed at the upper part of the packing part. A groove groove 710 formed in the lower part of the branch pipe and surrounding the outer periphery may be a packing formed downward from the upper surface of the packing.

In addition, a vertical protrusion is formed on the inner surface of the packing (see FIG. 8), and a vertical protrusion at the same position as the packing vertical protrusion is formed on the inner side of the branch pipe, and a longitudinal groove corresponding to the vertical inner surface of the packing inner surface is formed on the outer side of the inner washer protrusion tube. Bolt tightening can be facilitated. In addition, as shown in FIG. 2, a protrusion 369 is formed in the inner washer protruding tube or the upper periphery of the outer side of the protruding tube is a bullet-shaped curved surface 364 so that the inner washer protruding tube is easily inserted into the packing inner surface. Crossing of the curved wing piece larger than the inlet hole facilitates insertion by making it smaller than the inlet hole diameter when it is inserted into the inlet hole. By adding an ash, an adhesive agent, a caulking material, etc. to improve water tightness further, they also implement | achieve the subject of this invention.

In another configuration, the upper and lower outer diameters are different from each other and the thread is formed at a predetermined distance from the upper end of the upper cylindrical outer periphery toward the lower end, and the thread is formed on the lower cylindrical tube with a smaller diameter and the inner diameter is smaller than the upper part. A branch pipe on which the connection pipe is placed is formed and the lower surface of the branch pipe is flat;

A curved wing piece having a diameter equal to or slightly smaller than the inlet hole is integrally formed on the inner side of the lower end of the protruding pipe outer periphery formed with an internal thread corresponding to the lower branch pipe outer periphery thread, and protruding longitudinally from the upper periphery of the outer periphery to the lower side. An inner washer having a plurality of grooves formed therein and the upper surface of the protruding tube being flat and having a packing formed therein;

An inner circumference surrounds the inner washer protruding tube outer circumference, and an outer circumference is a tubular shape having the upper branch pipe diameter, and the upper surface is flat and has a longitudinal groove corresponding to the inner washer protruding tube outer circumferential longitudinal rail or groove. Or the inner periphery is in contact with the inner washer outer periphery and the outer periphery is in close contact with the inlet hole circumference, having an overall tubular contact, which is integrally formed under the sleeve with a rail formed and a longitudinal rail or groove at the periphery. The lower surface is curved and placed on the inner washer curved blade, the upper surface of the sleeve is flat and the lower surface of the tubular lower surface It consists of a packing that is enlarged to the outward side and larger than the diameter of the inlet hole and is in close contact with the periphery of the inlet end. Watertight means;

A plurality of protrusions or longitudinal grooves corresponding to the sleeve outer circumferential longitudinal grooves or rails are formed on the branch pipe threads and the inner surface of the protruding tube which is wrapped around the sleeve outer circumference to form a protrusion pipe that moves up and down at the branch outer circumference. And a saddle that is integral with the lower side of the protruding tube and is formed on a curved wing piece which is placed on the outer surface of the inlet hole periphery so that the branch pipe is accurately supported in the inlet hole;

A fastening means that is tightened by the branch pipe threaded portion and comprises a nut for pressing the top surface of the saddle protruding pipe;

It consists of and implement | achieves the subject of this invention.

According to the present invention, the inner washer over the inner surface of the inlet hole is larger than the inlet hole, which is bisected and folded or the same or smaller in diameter as the inlet hole. This is a very useful invention with the effect of common use in separate packings.

Therefore, if the inlet hole is larger than the standard, use the foldable inner washer, and if the standard hole is drilled with a hole cutter, the tubular packing is the same diameter as the inner washer wing. It is an invention to be a one-touch fastening branch pipe socket attachment device having an effect at the same time.

1 is an exploded partial cross-sectional front view of one embodiment of the present invention.
2 is a cross-sectional view illustrating the state before assembly of FIG. 1 and insertion into a pipe;
3 is a cross-sectional view illustrating a state of inserting into a pipe in FIG. 2.
Figure 4 is a cross-sectional view illustrating the tightening state after insertion in FIG.
5 is a cross-sectional view illustrating a state in which a plurality of bolts are tightened in FIG. 4.
6 is a cross-sectional view illustrating a state in which the fastening is completed with the fastening nut in FIG. 5.
7A, 7B, 7C, and 7D are cross-sectional views illustrating the packing top engagement of another embodiment of FIG.
8 is an explanatory view of a packing plane of the present invention.
9 is a packing plan cross-sectional view of another embodiment of the present invention.
10 is an explanatory diagram of an uncut branch pipe of Korean Patent Registration No. 0983186
11 is a diagram illustrating a conventional saddle
12 is a diagram illustrating a conventional inner washer
13 is a diagram illustrating a conventional branch pipe
14 is a diagram illustrating a conventional nut

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

1 is an exploded partial cross-sectional front view of an embodiment of the present invention, wherein the branch pipe 200 is generally cylindrical and has a plurality of bolt holes 230 formed on the outer periphery of the screw portion 290 and on the periphery of the inner surface at a predetermined distance. The upper part 71 of the tubular packing 70 is integrally formed at the bottom of the protruding frame 220 and the branch pipe, and the packing 70 has the tubular contact portion as a whole, and the upper part is In addition to the tubular expansion portion formed integrally with the lower side of the trachea and in addition to the tubular expansion portion, the curved curved wing piece 730 larger than the diameter of the inlet hole is integrated in the outer peripheral edge of the lower end, and the lower groove is formed along the curved surface at the peripheral edge of the engine. ) Is formed and includes a soft packing material 727, an adhesive, a caulking material, and the like.

The saddle 100 is formed in one piece with a curved wing piece surrounding the outer surface of the inlet hole periphery of the inlet hole is formed in the protruding pipe 150 is moved up and down while being plugged into the branch pipe outer thread portion. In addition, as described in the saddle description of Patent Application No. 10-2004-0075290, the protrusions are formed symmetrically on the inner surface and the corresponding longitudinal grooves are formed at a predetermined distance above and below the outer circumference of the branch pipe 200 to rotate with nuts. The branching pipe cannot move along and moves up and down, and the supporting piece is formed between the saddle protruding pipe and the curved wing piece so that the branching pipe can be reliably positioned. Nut 400 is a female screw is formed to tighten the branch outer thread portion and a plurality of protrusions 410 is formed on the outer surface to facilitate tightening. The inner washer 300 has a protruding pipe 360 which is located on the inner surface of the branch pipe formed on the upper side of the curved wing piece 310 larger than the inlet hole, and has a female screw part corresponding to a plurality of bolt holes on the inner surface of the branch pipe up and down. 4) is formed and the upper periphery of the outer surface of the protruding tube is a bullet-shaped curved surface 364, divided into up and down, and connected to one by a hinge 500. The inner washer may have a bulge 369 having the same inclined surface and the same curved surface as the bottom of the packing lower portion of the outer periphery of the protruding tube, and may protrude smaller than the inlet hole diameter on the wing piece. Reference numeral 700 denotes a connecting pipe and an inlet hole 650 is formed in the pipe 600, and indicates a pipe outer surface 610 and a pipe inner surface 620.

2 is a cross-sectional view illustrating the state before assembly of FIG. 1 and insertion into a pipe;

FIG. 3 is a cross-sectional view illustrating the state of inserting the pipe in FIG. 2. In FIG. 1, the inner washer 300 is folded and inserted into the inflow hole, and the packing 70 at the lower side of the branch pipe is integral with the saddle and the nut at the branch pipe. Pressing the branch pipe in the standing state, the curved wing piece 730 larger than the inlet hole diameter of the packing 70 overlaps the tubular packing outer surface in an arrow shape, and the packing inner surface length direction multiple to reduce the outer diameter to the inlet hole diameter It can be seen that the groove is inserted into the inlet hole by one-touch by narrowing the distance and consequently reducing the outer diameter.

4 is a cross-sectional view illustrating the tightening state after insertion in FIG. 3, wherein a packing curved wing piece larger than the restored inlet hole diameter same as that of FIG. 2 is restored, and an inner washer protruding pipe is inserted into an inner surface of the branch pipe and tightened with multiple bolts. Indicates the state.

FIG. 5 is a cross-sectional view illustrating a state in which a plurality of bolts are tightened in FIG. 4, and the upper surface of the lower protrusion of the inner washer projecting pipe is inclined and curved at the same time to the lower side outward and the lower surface of the packing is curved. It slides on the upper surface and is enlarged, indicating that the outer diameter of the packing curved wing piece is made larger.

6 is a cross-sectional view illustrating the state in which the fastening is completed with the fastening nut in FIG. 5, by further tightening the nut 400 fastened to the branch pipe to pressurize the upper surface of the saddle protruding pipe 150 to form a packing extension 73 integral with the branch pipe. By pressing and pressurizing the center of the packing with the inner washer curved wing piece 310 and the bulge 369, the soft packing material or the caulking material with good elasticity of the outer periphery of the packing leaks to the inner surface of the pipe, the periphery of the end of the inlet hole, and the inside of the inlet hole. It can be seen that by blocking the three to four times watertight. In addition, when the packing upper part 71 surrounding the lower part of the branch pipe is the inner washer projecting pipe is tightened with a plurality of bolts, the upper projection frame 711 is pressed against the lower groove groove 211 of the branch pipe may be watertight. At this time, the outer diameter of the packing curved blade piece 730 is larger diameter is pressed to the inner washer blade piece 310, indicating that the inner surface of the pipe is smooth.

7A, 7B, 7C, and 7D are cross-sectional views illustrating the packing top coupling state of another embodiment of FIG. 6, wherein the uneven parts corresponding to the lower side of the uneven pipe branch pipe of the upper part of the packing by screwing or uneven coupling are formed on the inner surface of the branch pipe. By tightening the inner washer female thread with the bolt of the upper part, the uneven groove of the packing and the uneven part of the branch pipe can be varied in compression, tightness and watertightness.

8 is an explanatory view of the packing plane of the present invention, forming protrusions at a constant height around the inner surface to form a supporting protrusion that is structurally stable to the packing, and at the same time, forming longitudinal protrusions at the same position on the inner surface of the branch pipe and the inner washer protrusion tube, etc. By forming longitudinal grooves corresponding to the protrusions on the upper and lower sides of the circumference, the bolt holes and the inner washer female threads are matched when tightening the bolts in the branch pipe.

9 is a cross-sectional view of the packing plane according to another embodiment of the present invention, by forming a plurality of longitudinal grooves 720 along the lower surface of the tubular packing inner surface constant distance lower periphery except for the packing upper portion 71, such that the groove spacing is As it is narrowed, the outer diameter of the packing can be reduced so that it can easily fit into the inlet.

10 is an explanatory view of the non-cutting branch pipe of the Republic of Korea Patent Registration No. 0983186, the movable sleeve 300 is the inner washer 300 in the present invention, the rotary sleeve 400 is integral with the upper branch pipe in the present invention The lower branch pipe is smaller in diameter, and in the present invention, the watertight packing 70 is integrally formed with a tubular packing under the same sleeve as the outer diameter of the branch pipe, and the lower surface of the packing is curved and placed on the inner washer curved blade. Accordingly, when the branch pipe of the present invention is tightened to the inner washer protrusion tube, the inner washer outer surface is wrapped with the sleeve and assembled to be placed on the inner washer curved blade, but the upper surface of the sleeve or the upper side of the inner washer protrusion tube and the lower side of the branch tube are ring-shaped. Interpose the packing. Then, when the branch pipe is assembled with the inner washer in the inlet hole and the branch pipe is rotated to tighten the inner washer upward, the lower part of the tubular packing is enlarged outwardly larger than the diameter of the inlet hole and the inner washer protruding tube top or sleeve As the top packing is pressed and the branch pipe rises as the fastening nut is tightened, the watertight packing which is expanded is pressed against the periphery of the end of the inlet hole, and the watertight packing is completed.

11 is a diagram illustrating a conventional saddle, FIG. 12 is a diagram illustrating a conventional inner washer, FIG. 13 is a diagram illustrating a conventional branch pipe, and FIG. 14 is a diagram illustrating a conventional nut, and a patent application 10-2004-0075290 filed by the present applicant. 5, 6, 7, and 8 of the arc, as shown in the detailed description of the first application, the projections 130 are formed symmetrically on the inner surface of the saddle 100 and the corresponding longitudinal grooves are formed up and down and protrude of the birds. It can be seen that a plurality of support portions are formed in dotted lines between the tube and the curved wing piece. In addition, the outer periphery of the nut 400 is formed with a plurality of protrusions 410 is utilized when tightening strongly with a tool or the like.

4: female thread 5: bolt
70: tubular packing 71: upper part
72: center portion 73: lower portion (expansion portion)
710: upper yohom 711: upper protrusion
717: yohomte 720: protrusion
725: longitudinal groove 727: soft packing material (caulking)
730: packing curved wing 100: birds
150: protruding pipe 211: lower groove of the branch pipe
220: protrusion frame 230: bolt hole
290: thread portion 300: inner washer
310: curved wing piece 360: protrusion tube
364 bullet surface 369
400: nut 410: protrusion
500: hinge 600: main pipe
610: outer 620: inner
650: inlet hole 700: connector

Claims (20)

In the branch pipe socket attachment device for attaching the branch pipe to the inlet hole of the pipe,
The branch pipe is cylindrical from top to bottom as a whole, and a threaded portion is formed at a predetermined distance in the direction from the upper end to the lower end of the outer periphery, and the inner side at the bottom of the protruding frame having a plurality of bolt holes formed at the periphery of the inner surface at a predetermined distance. A washer protruding tube is branched to form an integrally formed packing upper portion at the lower lower side;
The upper part is formed integrally with the lower part of the branch pipe while the lower part is curved, and the arrow-shaped curved wing piece larger than the inlet hole is integrated at the outer end of the lower end, and the tubular contact part has a tubular contact part. The inner circumference is in contact with the inner washer protruding tube, and some of the outer circumference is in intimate contact with the circumference of the inlet hole, and curved wing pieces larger than the inlet hole are in contact with the inner circumference of the inlet hole pipe and packed by tightening a plurality of bolts. A watertight means consisting of a packing for expanding the outer diameter of the curved wing piece by expanding the tubular shape expanding portion whose lower lower surface is curved outwardly by the curved wing piece of the inner washer;
The protruding pipe which is attached to the upper threaded part of the branch pipe and wrapped up and down is formed, and is formed with a curved wing piece which is integral with the lower side of the protruding pipe and is placed on the outer surface of the inlet hole peripheral pipe so that the branch pipe is correctly supported at the inlet hole and the correct position. Birds;
A fastening means that is tightened by the branch pipe threaded portion and comprises a nut for pressing the top surface of the saddle protruding pipe;
A protruding tube which is inserted into the lower inner surface of the branch pipe is integrally formed above the central hole of the curved wing piece larger than the inlet hole, and the protruding tube forms a female thread part corresponding to a plurality of bolt holes on the inner surface of the branch pipe. An inner washer that bisects the wing piece up and down and connects the curved wing piece end face with a hinge; And
Assembling means consisting of a plurality of bolts tightening the branch pipe and the inner washer to expand outwardly the tubular extension part whose lower surface of the packing is curved by the inner washer curved wing piece to further enlarge the outer diameter of the packing curved wing piece;
Branch socket attachment device, characterized in that consisting of. The method of claim 1,
The groove is formed in the lower periphery of the branch pipe, a projection frame corresponding to the groove in the lower peripheral edge of the branch pipe is formed in the upper portion of the branch pipe branch and socket is characterized in that the upper portion of the branch pipe is engaged with the packing. Device. The method of claim 1,
A screw portion is formed in the lower periphery of the branch pipe, and the upper portion of the packing is integrally formed under the socket formed with the screw portion corresponding to the branch pipe lower screw portion, and the branch pipe lower screw portion and the socket screw portion are tightened. Throttle socket attachment. The method according to claim 1 or 2,
A branching pipe formed vertically on the inner surface of the packing, and having a vertical protrusion formed on the inner surface of the branch pipe at the same position as the packing vertical protrusion, and having a longitudinal groove corresponding to the vertical inner surface of the packing inner surface on the inner washer protrusion tube; And a branch pipe socket attaching apparatus, wherein the branch pipe female screw and the branch pipe inner surface bolt hole are positioned at the same position. The method according to claim 1 or 2,
The inner washer is a branch pipe socket attachment device, characterized in that the bulge having the inclined surface and the curved surface is placed on the lower portion of the outer periphery of the protruding pipe protruding smaller than the inlet hole diameter on the wing piece. The method according to claim 1 or 2,
The inner washer is a branch pipe socket attachment device, characterized in that the bulge having the inclined surface and the curved surface is placed on the lower portion of the outer periphery of the protruding pipe protruding smaller than the inlet hole diameter on the wing piece. The method according to claim 1 or 2,
Branching socket attachment device, characterized in that the outer diameter of the inner washer curved blade piece is formed the same or smaller than the diameter of the inlet hole. The method according to claim 1 or 2,
The inner washer socket attachment device, characterized in that the outer diameter of the inner blade curved piece is the same or smaller than the diameter of the inlet hole is an integral inner washer without the inner washer cross-section. The method of claim 3,
A branching pipe formed vertically on the inner surface of the packing, and having a vertical protrusion formed on the inner surface of the branch pipe at the same position as the packing vertical protrusion, and having a longitudinal groove corresponding to the vertical inner surface of the packing inner surface on the inner washer protrusion tube; And a branch pipe socket attaching device, wherein the branch pipe female screw and the branch pipe inner surface bolt hole are positioned at the same position. The method of claim 3,
The inner washer is a branch pipe socket attachment device, characterized in that the bulge having the inclined surface and the curved surface is placed on the lower portion of the outer periphery of the protruding pipe protruding smaller than the inlet hole diameter on the wing piece. The method of claim 4, wherein
The inner washer has a bulge having an inclined surface and a curved surface on which a lower surface of the packing is placed on the outer periphery of the protruding tube, and protrudes smaller than the inlet hole diameter on the wing piece, and the groove corresponding to the vertical inner surface of the packing outside the groove of the inner washer protrusion tube. Branch pipe socket attachment device, characterized in that formed on the dolcete. The method of claim 6,
The inner washer is a branch pipe socket attachment device, characterized in that the bulge having the inclined surface and the curved surface is placed on the lower portion of the outer periphery of the protruding pipe protruding smaller than the inlet hole diameter on the wing piece. The method of claim 7, wherein
The inner washer is a branch pipe socket attachment device, characterized in that the bulge having the inclined surface and the curved surface is placed on the lower portion of the outer periphery of the protruding pipe protruding smaller than the inlet hole diameter on the wing piece. In the branch pipe socket attachment device for attaching the branch pipe to the inlet hole drilled in the side of the pipe,
The upper and lower outer diameter is different from each other, the upper cylindrical outer periphery of the upper end portion is formed with a screw thread at a predetermined distance in the direction of the lower end, the thread portion is formed in the lower cylindrical tube with a smaller diameter and the inner diameter is smaller than the upper portion of the connecting tube A branch pipe on which a stepped surface is formed and whose lower surface is flat;
A curved wing piece having a diameter equal to or slightly smaller than the inlet hole is integrally formed on the inner side of the lower end of the protruding pipe outer periphery formed with an internal thread corresponding to the lower branch pipe outer periphery thread, and protruding longitudinally from the upper periphery of the outer periphery to the lower side. An inner washer having a plurality of grooves formed therein and the upper surface of the protruding tube being flat and having a packing formed therein;
An inner circumference surrounds the inner washer protruding tube outer circumference, and an outer circumference is a tubular shape having the upper branch pipe diameter, and the upper surface is flat and has a longitudinal groove corresponding to the inner washer protruding tube outer circumferential longitudinal rail or groove. Or the inner periphery is in contact with the inner washer outer periphery and the outer periphery is in close contact with the inlet hole circumference, having an overall tubular contact, which is integrally formed under the sleeve with a rail formed and a longitudinal rail or groove at the periphery. The lower surface is curved and placed on the inner washer curved blade, the upper surface of the sleeve is flat and the lower surface of the tubular lower surface It consists of a packing that is enlarged to the outward side and larger than the diameter of the inlet hole and is in close contact with the periphery of the inlet end. Watertight means;
A plurality of protrusions or longitudinal grooves corresponding to the sleeve outer circumferential longitudinal grooves or rails are formed on the branch pipe threads and the inner surface of the protruding tube which is wrapped around the sleeve outer circumference to form a protrusion pipe that moves up and down at the branch outer circumference. And a saddle that is integral with the lower side of the protruding tube and is formed on a curved wing piece which is placed on the outer surface of the inlet hole periphery so that the branch pipe is accurately supported in the inlet hole;
A fastening means that is tightened by the branch pipe threaded portion and comprises a nut for pressing the top surface of the saddle protruding pipe;
Branch socket attachment device, characterized in that consisting of. The method of claim 14,
Branch-type socket attachment device characterized in that the packing of the arrow-shaped curved wing piece larger than the inlet hole toward the outward side of the tubular packing lower end. The method according to claim 14 or 15,
A branch pipe socket attaching device, wherein a ring-shaped packing is interposed between an upper surface of the sleeve and a lower surface of the branch pipe. The method according to claim 14 or 15,
An inner washer socket attachment device, characterized in that the outer diameter of the inner blade is larger than the diameter of the inlet hole and the inner washer is divided into two, the inner washer up and down. The method according to claim 14 or 15,
The inner washer is a branch pipe socket attachment device, characterized in that the bulge having the inclined surface and the curved surface is placed on the lower portion of the outer periphery of the protruding pipe protruding smaller than the inlet hole diameter on the wing piece. The method of claim 17,
A branch pipe socket attaching device, wherein a ring-shaped packing is interposed between an upper surface of the sleeve and a lower surface of the branch pipe. The method of claim 17,
The inner washer is a branch pipe socket attachment device, characterized in that the bulge having the inclined surface and the curved surface is placed on the lower portion of the outer periphery of the protruding pipe protruding smaller than the inlet hole diameter on the wing piece.

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