KR20120037338A - Blind branch outlet fitting system - Google Patents

Abstract

PURPOSE: A socket attachment system of a branch pipe is provided to prevent a branch pipe from becoming separated from a branch hole by adding a doughnut-shaped reinforcing washer to a cylindrical inner washer. CONSTITUTION: A socket attachment system of a branch pipe comprises a branch pipe(200), a pipe-shaped packing(70), and a cylindrical inner washer(300). The packing is integrally formed in the branch pipe and has the same diameter as the branch pipe. The inner washer is vertically inserted into a branch hole(650) and is assembled in the branch pipe. When the branch pipe is forcefully locked to the inner washer, the bottom of the packing is expanded to be larger than the branch hole.

Description

Branch Branch Outlet Fitting System

The present invention relates to a branch pipe attachment device for attaching the connection pipe through a branch hole on the side of the main pipe without the use of T pipe when connecting the main pipe and branch pipe (connecting pipe).

Particularly, the branch pipe and the tubular packing are integral and have the same diameter, and the inner circumference of the outer circumferential surface is cylindrically inserted into the branch hole, and the branch pipe and the cylindrical inner washer are assembled by a single pull (One-Touch). When installed, it is easy to work because it is inserted perpendicularly to the branch hole, and when the packing is forced to catch the branch pipe and the inner washer from the inner side of the branch pipe firstly, the lower part of the packing is larger than the branch hole, When tightened, it is triple watertight in the branch hole, the edge of the end, and the inner edge of the pipe. In addition, when a part of the periphery of the end of the branch hole is damaged and the hole is enlarged by the pipe and the hole cutter deformed by earth pressure, the donut type reinforcement washer larger than the diameter of the branch hole may be additionally hung on the cylindrical inner washer, resulting in triple watertightness. In addition, the branch pipe can not be pulled out of the branch hole, it is a branch socket attachment device that can be commonly used in pipes with different pipe inner diameters only by replacing the reinforcement washer.

Utility Model Registration No. 54114, Patent Registration No. 225419, Patent Application No. 10-2004-0075290, Patent Application No. 10-2006-0068953, and Patent Application No. 10-2006-0108620 And Japanese Patent No. 3415900 and Republic of Korea Patent No. 772712, which will be described in more detail below.

Utility Model Registration No. 54114 (branch socket attaching device) has a split washer attached to the inside of the outlet hole by pulling one or two or more split washers connected to them on the inside of the outlet hole (inlet hole). The present invention relates to a branch socket attachment device for tightening and tightening with a female screw of a split washer (inner washer) by a plurality of bolts on the inner surface of the branch socket.

Patent registration No. 225419 (one side fastening device using a washer having a bent portion) divides the circular washer that is larger than the fastening hole (inlet hole) to form a bent portion at the end face, and the manned vessel to the divided washer (inner washer) It is characterized by the fact that it connects the (tension line) and folds it in the V-shape when inserting it into the fastening hole, and spreads the circular washer circularly in the inside (divided inner washer). , Packing, adhesive tape, spring, casing, or cutting washer and the bent part (in thin bent part), and the like is used to fold it using such a round washer is a fastening device used for bolts, nuts, pipe sockets and the like.

Patent Application No. 10-2004-0075290 (watertight method of branch pipe and branch pipe socket attachment device using the same) places one donut-type packing on the curved wing piece larger than the inlet hole, or is integrated with the curved wing piece and branch pipe When assembling the inner washer protruding tube female thread with a number of bolts on the inner side, the lower part of the branch pipe presses and seals the donut-shaped packing, and the upper surface of the saddle protrusion pipe attached to the outer surface of the branch pipe is secondaryly pressurized with a nut. Even though the surface shape is different, it is used in common.At this time, longitudinal grooves are formed up and down the periphery of the outer surface of the branch pipe, and longitudinal rails are formed on the inner surface of the saddle so that the branch pipes cannot move together when they are tightened with nuts. It is characterized by.

Patent application No. 10-2006-0068953 (watertight method of the branch pipe socket attachment device) is integrated with the packing center portion of the tubular shape on the upper side of the donut-shaped packing center hole of Patent Application No. 10-2004-0075290, the upper part of the lower branch pipe Water-tightness is a structure which is watertight by tightening the inner washer curved wing piece larger than the inlet hole and the curved wing piece packing (donut-shaped packing) integral with the lower side of the branch pipe thereon.

The above technique has the inconvenience of having to cut, fold and screw the inner washer where the watertight is only one inner surface and larger than the branch hole.

Patent application No. 10-2006-0108620 utilizes the watertight method of patent application No. 10-2006-0068953, it is a structure that the inner washer is pulled by one-touch to the branch pipe without tightening a plurality of bolts (One-Touch). However, the watertight packing does not enter the branch hole at once, and there is an inconvenience in that the inner washer is also folded and assembled.

Japanese Patent Registration No. 3415900 and Korean Patent Registration No. 772712 have a common seal for watertight, and a saddle-shaped curved wing piece is integrally formed on the outward side of the tubular packing. The bottom of the packing is enlarged by the curved blades at the end of the movable tube or branch pipe, which makes the periphery of the inlet end and the inside of the inlet hole closed. There is a problem that the hole is enlarged or the soft packing material is pulled out of the inlet hole due to the error of the pipe and the inner surface of the pipe is not watertight, there is a problem that the packing should be replaced if the thickness is different depending on the type of pipe.

The present invention is to solve the problems of the background art development of a tubular packing structure with good workability to be inserted into the branch hole vertically into the branching hole of the lower portion of the cylindrical steel material and the tubular packing upper portion of the elastic material, branching And cylindrical inner washer are assembled by one push (One-Touch) structure, which is inserted perpendicularly to branch hole and fastened by One-Touch, and the periphery end of branch hole with pipe and hole cutter modified by earth pressure, etc. If a part is damaged or a hole is enlarged, a donut type reinforcing washer larger than the diameter of the branch hole is additionally interposed between the upper surface of the cylindrical inner washer curved wing and the bottom of the tubular packing, so that the branch pipe cannot be pulled out of the branch hole and is triple watertight. Another problem is to develop a structure that can be commonly used for pipes with different pipe inner diameters only by replacing the reinforcing washers.

The present invention includes a branch pipe, a packing, a saddle, an inner washer, a nut, and a protrusion having a plurality of elastic members in order to solve the above problems of the background art.

That is, the first configuration is generally cylindrical from the top to the bottom, a longitudinal groove corresponding to the screw portion and the protrusion on the inner side of the saddle is formed at a predetermined distance in the direction from the upper end to the lower end of the outer circumferential surface, and at the periphery of the inner peripheral distance. A branch pipe forming a plurality of support piece insertion grooves of the body and having protrusions corresponding to the inner washer protruding pipe longitudinal grooves on the inner surface including the grooves and integrally forming an upper part of the packing below the lower side; The upper part is formed integrally with the lower side of the branch pipe while forming a tubular contact portion and a protrusion corresponding to the inner washer protruding tube longitudinal groove at a predetermined distance from the upper end of the inner circumferential surface, and the inner circumferential surface of the tubular contact portion protrudes the inner washer Make contact with the outer circumferential surface of the tube, and some of the outer circumferential surface is in intimate contact with the circumference of the branch hole, and the lower lower surface is curved so that the lower lower surface is placed on the inner washer curved wing piece larger than the branch hole, and the inner washer protruding tube into the inner surface of the branch pipe. A watertight means comprising a packing in which the lower part of the packing is expanded larger than the branching hole toward the outward side by forcibly pulling it up; The protruding pipe, which is attached to the upper thread part of the branch pipe and moves up and down while being wrapped, is formed with a protrusion corresponding to the longitudinal groove of the branch pipe outer circumferential surface and is a curved wing piece integrally formed with the lower side of the protruding pipe and placed on the outer surface of the branch hole peripheral pipe. Birds whose trachea is correctly supported in position with the branch 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; A protruding pipe 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 branch hole, and the longitudinal groove corresponding to the tubular packing inner surface protrusion and the branch inner pipe protrusion from the upper end of the protruding pipe outer side to the lower side and the branch. An inner washer which forms a groove corresponding to the engaging projection inserted into the plurality of grooves of the engine inner surface, divides the inner washer up and down, and connects the wing piece cross sections with one hinge; And a supporting piece inserted into the branch inner groove of the branch pipe, and a lower side of the supporting piece and a lower side of the locking projection, which is attached to the inner washer projecting pipe groove, are integrally formed with an elastic member, and each of the supporting pieces of the protrusion is formed in a plurality of protrusions which are V-shaped. The inner washer protruding tube is forcibly pulled into the inner surface of the branch pipe inserted into the inner groove, and the lower part of the packing is enlarged outwardly larger than the branch hole by the inner washer curved blade, and at the same time, the plurality of locking projections are the inner washer. Assembling means plugged into the projection tube groove; . In addition, the protrusion body may be formed to rotate up and down in the inner washer protruding tube groove and to be caught by the branch inner surface groove or integrally formed with a protrusion body inserted into the inner washer or the branch pipe groove. In addition, a groove groove is formed at the lower periphery of the branch pipe, and a projection frame corresponding to the groove groove of the lower edge of the branch pipe is formed at the upper part of the branch pipe so that the lower part of the branch pipe and the upper part of the packing are engaged with each other. In order to integrate the packing and the upper part may be double injection. In addition, the inner washer may be a branch pipe socket attachment device which protrudes smaller than the diameter of the branch hole on the wing piece having an inclined surface and a curved surface on which the packing lower surface is placed below the outer circumferential surface of the protruding pipe.

In the second configuration, in the first configuration, when the inner washer has an inner diameter in which the inner diameter of the curved side of the curved wing piece is the same as or slightly smaller than the branch hole diameter, and the protruding tube without the cross section and the hinge is a cylindrical inner puller, the inner washer is pulled to the branch pipe. And the inner washer is assembled into one vertically inserted into the branch hole in a single state to be inserted into the branch hole at one time to become a branch socket attachment device of another structure to fasten with a fastening nut.

In the second configuration, in the second configuration, the outer circumferential surface diameter is larger than the branch hole diameter, the lower surface is a curved surface contacting the upper surface of the inner washer curved wing piece, and the inner circumferential surface is attached to the periphery of the end of the cylindrical inner washer protruding tube and corresponds to the longitudinal groove. The upper surface is a curved surface having a predetermined thickness and provided with a reinforcing washer in contact with the bottom of the watertight packing, the powder of the other structure between the cylindrical inner washer curved wing piece upper surface and the tubular packing lower surface additionally interposed the reinforcing washer. When the reinforcing washer is an elastic member such as a rubber material, it can be forcibly inserted into the inner washer curved wing as if the tire was inserted from the inner surface of the pipe. When the reinforcing washer is made of steel (PE, PVC, PC, ABS, etc.), at least one row of longitudinal grooves parallel to the longitudinal direction of the main pipe is formed on the lower surface of the reinforcement washer to bend the reinforcement washer in the longitudinal groove. Connect the tension line to the top of the cylindrical inner washer, penetrate the inner side of the reinforcement washer through the tension line, insert the reinforcement washer and the cylindrical inner washer into the inner surface of the pipe, and pull the tensile line to hang the curved side of the inner washer By pressurizing the tubular packing lower surface larger than the branching hole with the same result as the inner washer having the curved wing piece larger than the branching hole of one configuration, the upper surface of the reinforcing end of the reinforcing edge has a concave curved surface that rises outwardly upward. Watertight the three places, such as the branch hole, the peripheral edge of the end, and the inner peripheral edge of the pipe, and the pipes and hole cutters deformed by earth pressure, etc. Pore end, even if the peripheral edge portion is broken, as well as the branch pipes able to pull in the support bungigong even when enlarging the hole of a hole cutter error should be water-tight to three places. At the time of disassembly, the technical problem is realized by loosening the fastening nut and disassembling in reverse assembly order. Further, if the curvature of the upper surface of the reinforcing washer is different from the curvature of the lower surface, the reinforcing washer can be replaced by a replacement of the reinforcing washer.

Therefore, the 1st structure, 2nd structure, and 3rd structure implement the technical subject of this invention.

In the present invention, the branch pipe and the tubular packing is integral, the same diameter, the inner circumference of the outer circumferential surface of the cylinder is inserted perpendicular to the branch hole, the branch pipe and the cylindrical inner washer as a structure that is assembled by a single pull (One-Touch) It is easy to work because it is inserted perpendicularly to the branch hole during installation. When the packing is forced to catch the branch pipe and the inner washer from the inner side of the branch pipe to the locking projection, the lower part of the packing is larger than the branch hole. When the furnace is tightened, it is triple watertight, such as in the branch hole, the peripheral edge of the end, and the inner peripheral edge of the pipe. In addition, when a part of the periphery of the end of the branch hole is damaged and the hole is enlarged by the pipe and the hole cutter deformed by earth pressure, the donut type reinforcement washer larger than the diameter of the branch hole may be additionally hung on the cylindrical inner washer, resulting in triple watertightness. However, it is a very useful invention that the branch pipe cannot be pulled out of the branch hole, and the replacement of the reinforcing washer can be used in common with pipes having different inner diameters.

1 is an exploded partial cross-sectional front view of one embodiment of the present invention.
2 is a cross-sectional view illustrating a state in which FIG. 1 is assembled and inserted into a pipe;
3 is a cross-sectional view illustrating a state in which a plurality of protrusions are caught in FIG. 2.
4 is a cross-sectional view illustrating a state in which the fastening is completed with the fastening nut in FIG. 3.
5A, 5B, 5C, and 5D are cross-sectional views illustrating a packing top coupling state of another embodiment of FIG. 4.
6A and 6B are explanatory views of reinforcement washers according to various embodiments of the present disclosure.
6C, 6D, 6E, and 6F are cross-sectional views of reinforcement washers of various embodiments of the present invention.
7A is a diagram of a conventional saddle
Figure 7b is a diagram illustrating a conventional inner washer
7C is a diagram illustrating a conventional branch pipe
Figure 7d is a conventional nut explanatory drawing

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 threaded portion 290 at the outer periphery and a support piece 91 of the protrusion 90 inserted at the periphery of the inner surface at a predetermined distance. A plurality of grooves 267 to be formed are formed, and the upper portion 71 of the tubular packing 70 is integrally formed under the branch pipe. The packing 70 is inserted into the branch hole with the tubular contact as a whole. The upper part is formed integrally with the lower side of the branch pipe, the inner circumference of the contact portion is in contact with the inner washer protruding pipe 360, the outer circumferential surface of the main pipe branch hole, the lower surface is inclined downward from the center outward and at the same time curved It is a packing that is expanded outwardly larger than the branch hole on the inner washer curved wing piece. The saddle 100 is formed to be integrally formed with a curved wing piece surrounding the outer periphery of the periphery of the branch hole is formed in the protruding pipe 150 is moved up and down while being picked up and wrapped around the branch pipe outer thread portion. 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 branch hole, and the locking protrusion 92 inserted into the plurality of grooves of the inner surface of the branch pipe at the outer periphery of the protruding pipe. And forming a groove 367 corresponding to and divides the inner washer up and down and connects one by a hinge 500. When the inner washer is packed under the outer circumferential surface of the protruding pipe, a bulge 369 having the same slope and the same curved surface as a part of the inner washer may protrude smaller than the branch hole diameter on the wing piece. The tension line 6 may be connected to the inner washer, and the tension line may be used to penetrate the tension line hole of the inner surface protruding frame 220 of the branch pipe. Numeral 700 denotes a connecting pipe, a branch hole 650 is formed in the pipe 600, and indicates a pipe outer surface 610 and a pipe inner surface 620.

FIG. 2 is a cross-sectional view illustrating the state in which the assembly of FIG. 1 is inserted and inserted into a pipe, and the inner washer is folded into the hinge center in the branch hole and the tubular packing is provided with the saddle 100 and the nut 400 fastened to the branch pipe. It is vertically inserted into the branch hole, and the lower part of the packing is pulled out a certain distance longer than the inner surface of the pipe to pull up the inner washer projecting tube (if there is a tensile line, it may pull a tensile line). At this time, although not shown in the drawings, the projections 720 are formed in the longitudinal direction on the inner surface of the packing (see FIG. 6), and the projections are formed on the inner surface of the branch pipe at the same position, and the corresponding grooves are formed on the outer circumferential surface of the inner washer. Thus, the engaging projection 92 of the plurality of projection bodies on the inner surface of the branch pipe and the inner washer projecting pipe groove 367 are coincident with each other. At this time, it is preferable that the support piece and the locking projection of the protrusion body have a curved surface in a cross section like the inner surface of a pipe.

FIG. 3 is a cross-sectional view illustrating a state in which a plurality of protrusions are caught in FIG. 2. When the locking protrusions 92 of the plurality of protrusions are hooked to the protruding pipe groove 367, the bottom surface of the inner washer is packed with the slide. It is larger than the branch hole diameter and shows the state was placed on the inner washer curved wing piece 310.

FIG. 4 is a cross-sectional view illustrating the state in which the fastening is completed with the fastening nut in FIG. 3. The packing extension 73 integral with the branch pipe is pressed by tightening the nut 400 fastened to the branch pipe by pressing the top surface of the saddle protruding pipe 150. By compressing and pressing the packing central part with the inner washer curved wing piece 310 and the bulge frame 369 (using Patent Registration No. 0983186), a soft packing material or a caulking material having good elasticity on the outer circumferential surface of the packing, It can be seen that by closing the leak to the inside of the branch hole and the three to four times watertight. In addition, when the packing upper part 71 surrounding the lower part of the branch pipe is caught by the inner washer protruding pipe with a plurality of protrusions, the upper protrusion frame 711 may be pressed and watertight on the lower groove groove 211 of the branch pipe.

5A, 5B, 5C, and 5D are cross-sectional views illustrating the packing upper coupling state of another embodiment of FIG. 4, wherein the upper part of the packing and the lower side of the branch pipe are screwed or uneven, and the lower side of the branch pipe has a plurality of protrusions on the inner surface of the branch pipe. By forcing it into the groove, it can be variously compressed, tightly and watertight. At this time, an adhesive or the like may be used.

6A and 6B are explanatory views of reinforcement washers of various embodiments of the present invention, and FIG. 6A is a reinforcement washer utilized according to the second configuration description. The diameter of the outer diameter 83 of the reinforcement washer 80 is larger than the branch hole diameter. 84 is a diameter in contact with the outer peripheral surface of the cylindrical inner washer protruding tube end and the inner peripheral surface protrusion 89 is formed to correspond to the longitudinal groove in the outer peripheral surface of the cylindrical inner washer. 6B is a cutting reinforcement washer which is a cutting plane 88 cut off one side of the reinforcing washer of FIG. 6A and is used as a cutting reinforcement washer according to the third configuration description. 6B is a 360 ° view from one side of the reinforcement washer cut from the inner surface of the pipe between the cylindrical inner washer curved wing piece and the tubular packing lower face which are pre-tightened to the branch pipe and pre-tightened in the branch hole. It is rotated and assembled. 6C, 6D, 6E, and 6F are cross-sectional explanatory views of reinforcing washers of various embodiments of the present invention, by forming one or more longitudinal grooves 86 parallel to the length direction of the main pipe at the bottom of the reinforcing washer of FIG. 6A. When inserted into the branch hole is bent in the longitudinal groove is easily inserted. 6D may be formed such that the cutting reinforcement washer cutting surface 88 overlaps with each other for a predetermined distance, and the unevenness or protrusion and the groove correspond to each other. In addition, the protrusion 87 is formed downward on the lower surface of the cutting reinforcement washer, so that the cylindrical inner washer curved blade piece is formed to correspond to the groove or hole so that it is assembled in place and prevented from being separated. FIG. 6E illustrates a state in which protrusions are formed on the lower surface of the reinforcement washer as shown in FIG. 6D, and FIG. 6F illustrates a protruding frame 85 surrounding the cylindrical inner washer curved wing piece at the lower side of the reinforcement washer or the cut reinforcement washer, The concave curved surface 813 rising upward outward is formed to pressurize the lower surface of the watertight packing that is expanded outwardly. In addition, the inward curved surface 814 is formed at the periphery of the predetermined distance inwardly toward the inward center side, the diameter of which is smaller than the branch hole diameter, so that the cutting reinforcement washer is not separated.

7A is a diagram illustrating a conventional saddle, FIG. 7B is a diagram illustrating a conventional inner washer, FIG. 7C is a diagram illustrating a conventional branch pipe, and FIG. 7D 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 protrusions 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 circumferential surface of the nut 400 is formed with a plurality of protrusions 410 is utilized when tightening strongly with a tool or the like.

6: tensile line 70: tubular packing
71: upper part 72: center part
73: lower part (expansion part) 80: reinforcement washer
81, 82: upper and lower 83, 84: outer and inner
85: protrusion frame 86: longitudinal groove
87: bottom projection 88: cutting surface
89: inner protrusion 90: protrusion
91: support piece 92: locking projection
93: upper surface of the projection 94: inclined surface
95: elastic member 100: saddle
150: protruding pipe 211: lower groove of the branch pipe
220: protrusion frame 240: tension line hole
267: internal groove of the branch pipe 290: screw portion
300: inner washer 310: curved wing piece
360: protrusion pipe 367: inner washer protrusion pipe groove
369: Dolphin 400: Nut
410: tightening protrusion 500: hinge
600: main pipe 610: outer surface
620: inner 650: branch hole
700: connector 710: upper yohom te
711: upper protrusion frame 720: protrusion

Claims (11)

A branch pipe socket attaching device for attaching a branch pipe to a branch side hole of a pipe,
Overall, it is cylindrical from top to bottom, and in the direction from the top to the bottom of the outer circumferential surface, a longitudinal groove corresponding to the protrusion is formed at a certain distance from the top to the bottom of the screw and at the bottom from the top. Branch pipes are formed in a number and a protrusion corresponding to the inner washer protruding tube longitudinal grooves on the inner surface including the grooves and integrally form the upper packing portion at the lower lower side;
The upper part is formed integrally with the lower side of the branch pipe while forming a tubular contact portion and a protrusion corresponding to the inner washer protruding tube longitudinal groove at a predetermined distance from the upper end of the inner circumferential surface, and the inner circumferential surface of the tubular contact portion protrudes the inner washer Make contact with the outer circumferential surface of the tube, and some of the outer circumferential surface is in intimate contact with the circumference of the branch hole, and the lower lower surface is curved so that the lower lower surface is placed on the inner washer curved wing piece larger than the branch hole, and the inner washer protruding tube into the inner surface of the branch pipe. A watertight means comprising a packing in which the lower part of the packing is expanded larger than the branching hole toward the outward side by forcibly pulling it up;
The protruding pipe, which is attached to the upper thread part of the branch pipe and moves up and down while being wrapped, is formed with a protrusion corresponding to the longitudinal groove of the branch pipe outer circumferential surface and is a curved wing piece integrally formed with the lower side of the protruding pipe and placed on the outer surface of the branch hole peripheral pipe. Birds whose trachea is correctly supported in position with the branch 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;
A protruding pipe 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 branch hole, and the longitudinal groove corresponding to the tubular packing inner surface protrusion and the branch inner pipe protrusion from the upper end of the protruding pipe outer side to the lower side and the branch. An inner washer which forms a groove corresponding to the engaging projection inserted into the plurality of grooves of the engine inner surface, divides the inner washer up and down, and connects the wing piece cross sections with one hinge; And
A support piece inserted into the branch inner groove of the branch pipe, and a lower side of the support piece and a lower side of the catching protrusion, which is attached to the inner washer projecting pipe groove, are integrally formed with an elastic member, and each of the support pieces of the projection body has a plurality of protrusions that are V-shaped. The inner washer protruding tube is forcibly pulled into the inner surface of the branch pipe where the projection is protruded into the groove so that the lower part of the packing is enlarged outwardly larger than the branch hole by the inner washer curved blade, and at the same time, the plurality of locking projections protrude into the inner washer. Assembly means plugged into the tube groove;
Branch socket attachment device, characterized in that configured to include. The method of claim 1,
Branching socket attachment device characterized in that the protrusion body is formed to rotate up and down in the inner washer protrusion pipe groove and caught in the inner surface groove of the branch pipe. The method according to claim 1 or 2,
Branch socket attachment device characterized in that the projection body inserted into the inner washer or branch pipe groove integrally formed. 4. The method according to any one of claims 1 to 3,
Grooving 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. 5. The method according to any one of claims 1 to 4,
The inner washer is a branch pipe socket attaching device, characterized in that the bulge having a slope and a curved surface on which the packing lower surface is placed below the outer circumferential surface of the projecting pipe projected smaller than the branch hole diameter on the wing piece. The method according to any one of claims 1 to 5,
The inner washer socket attachment device, characterized in that the inner diameter of the inner side of the curved blade piece is the inner washer of the same or slightly smaller than the diameter of the branch hole, the protruding tube without the cross section and the hinge is a cylindrical one. The method according to any one of claims 1 to 6,
The outer circumferential surface diameter is larger than the branch hole diameter, the lower surface is a curved surface in contact with the upper surface of the inner washer curved wing piece, and the inner circumferential surface is attached to the periphery of the end of the cylindrical inner washer protruding tube and forms a protrusion corresponding to the longitudinal groove, and the upper surface is a curved surface having a predetermined thickness. And a reinforcing washer contacting the bottom surface of the watertight packing, wherein the reinforcing washer is additionally interposed between the cylindrical inner washer curved wing piece upper surface and the tubular packing lower surface. The method according to any one of claims 1 to 7,
Branch receptacle socket attachment device characterized in that the reinforcing washer is formed in the longitudinal groove parallel to the longitudinal direction of the main pipe at least one line is bent the reinforcement washer in the longitudinal groove. The method according to any one of claims 1 to 8,
Branch receptacle socket attachment device, characterized in that the concave curved surface of the reinforcement washer end peripherally in a certain distance inwardly upward. The method according to any one of claims 1 to 9,
Branch socket attachment device characterized in that the protruding frame is integrally formed on the lower surface of the reinforcement washer and the outer circumferential surface of the curved wing piece. The method according to any one of claims 1 to 10,
Branch receptacle socket attachment device, characterized in that the curvature of the upper surface is the curvature different from the lower surface.

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