KR101854531B1 - Apparatus for branching - Google Patents

Abstract

An invention relating to a branching device is disclosed. The disclosed branching device includes a hole coupling portion provided in a branch hole portion formed in a first pipe, a body portion surrounding the hole coupling portion and in contact with the first pipe, a sealing portion sandwiched between the body portion and the hole coupling portion, And an adapter portion which is connected to the hole coupling portion while pressurizing the portion and communicates with the second pipe.

Description

[0001] APPARATUS FOR BRANCHING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a branching apparatus, and more particularly, to a branching apparatus coupled to a first piping for branching the movement of fluid in a first piping.

In general, the branching device corresponds to a first piping, for example, a device for mounting a branch piping in the main piping to convert part of the fluid flowing along the main piping to another direction. In order to connect the branch piping to the main piping, welding, mortar, adhesive or cement are applied according to the material of the piping.

Such a branching device is mounted in a branch hole formed in a pipe to be branched, and changes the flow of the fluid through the pipe in such a manner as to be connected to a neighboring pipe via an adapter or the like.

Since the conventional branching device is coupled with a pipe or the like by a welding method, leakage and deformation are caused by welding failure, a specialist for welding is required, and deformation is caused by thermal stress or high temperature generated at the welding, . In addition, in the conventional branching device, the degree of bonding at the welding site may vary depending on the skill level of the operator, so that it is difficult to manage the bonding quality. Therefore, there is a need for improvement.

The background art of the present invention is disclosed in Patent Registration No. 10-1042081 (registered on June 6, 2011, entitled "Method for manufacturing a branch connector tube").

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a piping system capable of branching a main pipe without welding, facilitating a branching process, securing branching quality regardless of skill of a worker, And to provide a branching device having excellent confidentiality maintenance performance.

A branching device according to the present invention comprises: a hole coupling portion provided in a branch hole portion formed in a first pipe; A body portion surrounding the hole coupling portion and contacting the first pipe; A sealing part sandwiched between the body part and the hole engaging part; And an adapter unit coupled to the hole coupling unit while pressurizing the sealing unit and communicating with the second pipe.

According to an embodiment of the present invention, the hole coupling unit may include: a hole coupling body coupled to the adapter unit and having one end inserted into the branch hole; And a hole engagement protrusion protruding from the hole-coupled body portion and contacting the inner wall of the first pipe to prevent the hole-coupled body from being detached from the branch hole portion.

According to an embodiment of the present invention, the hole-engaging portion may include: a securing portion fixed to the hole-engaging body portion and projecting from the hole-engaging body portion and contacting the inner wall of the first pipe; And a rotation engaging portion rotatably coupled to the hole-coupled body portion and contacting the inner wall of the first pipe.

In the present invention, the rotation latching portion may include: a rotation latch body rotatably coupled to the hole-coupled body portion; And a rotation latch protrusion protruding from the rotation latch body and contacting the inner wall of the first pipe.

In the present invention, the body portion may include a body main portion spaced apart from the hole coupling portion and surrounding the hole coupling portion; And a body sloping portion extending from the body main portion, the body sloping portion being formed so as to have an inner diameter narrowed toward the first pipe side and in contact with an outer peripheral surface of the first pipe.

In the present invention, the body part may further include a sealing part fixing protrusion formed on the inner peripheral surface of the body main part or the body sloping part to engage with the sealing part.

In the present invention, the sealing portion may be formed to have a reduced thickness as it proceeds toward the first pipe, and may be sandwiched between the body inclined portion and the hole engaging portion.

In the present invention, the sealing portion may include: a sealing body portion sandwiched between the body inclined portion and the hole engaging portion; And an adapter fixing groove formed in the sealing body portion to engage with the adapter portion.

According to an embodiment of the present invention, the adapter unit may include: an adapter coupling portion that enters between the hole coupling portion and the body portion and is screwed to the hole coupling portion; And a second pipe connection part connected to the adapter coupling part and detachably coupled with the second pipe.

According to an embodiment of the present invention, the adapter coupling body may include an adapter coupling body that enters between the hole coupling portion and the body portion and presses the sealing portion, has a thread formed on an inner circumferential surface thereof, and is screwed into the hole coupling portion. And a hole coupling limiter protruding from an inner circumferential surface of the adapter coupling body, the hole coupling limiter limiting a distance by which the hole coupling portion enters the adapter coupling body.

In the present invention, the second piping connection part may include a second piping connection body connected to the adapter coupling part, the second piping connection body being formed to have an inner diameter narrowed in a direction in which the second piping is inserted; And a second pipe fixing part which is screwed to the second pipe connection body and is fitted between the second pipe connection body and the second pipe.

In the present invention, the second pipe fixing portion may include: a second pipe fixing body sandwiched between the second pipe connecting body and the second pipe such that an outer peripheral surface of the second pipe fixing portion is in contact with the inclined surface; And a second pipe fixing groove portion formed concavely in the inner circumferential surface of the second pipe fixing body and being contractibly deformed according to a degree of insertion of the second pipe.

The branching device according to the present invention is capable of branching the first pipe as the main pipe in a non-welding manner, so that the branching process is easy, the branching quality can be ensured irrespective of the skill of the operator, , And the sealing performance is excellent.

1 is a perspective view schematically showing a branching device according to an embodiment of the present invention.
2 is a cross-sectional view in the width direction of the first pipe of the branching device according to the embodiment of the present invention.
3 is a longitudinal cross-sectional view of a first pipe of a branching device according to an embodiment of the present invention.
4 is a plan view and a cross-sectional view of a hole coupling part according to an embodiment of the present invention.
FIG. 5 is a plan view and a cross-sectional view of the hole coupling portion according to an embodiment of the present invention in another direction.
FIG. 6 is a plan view showing a state in which a rotation latch according to an embodiment of the present invention is rotated with respect to a hole-coupled body.
7 is a cross-sectional view illustrating a state in which a rotation latch according to an embodiment of the present invention is rotated with respect to a hole-coupled body.
8 is a cutaway view illustrating a body according to an embodiment of the present invention.
9 is a cutaway view showing an adapter unit according to the first embodiment of the present invention.
10 is an incision view showing an adapter unit according to a second embodiment of the present invention.
11 is a cutaway view showing a state in which the second pipe fixing part is separated from the adapter part according to the second embodiment of the present invention.
12 is an incision view showing a second pipe fixing portion according to the second embodiment of the present invention.
13 is a plan view showing a second pipe fixing portion according to a second embodiment of the present invention.
FIG. 14 is a cutaway view showing a state in which the adapter part second piping according to the second embodiment of the present invention is coupled.

Hereinafter, an embodiment of a branching device according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view schematically showing a branching device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view in the width direction of a first pipe of a branching device according to an embodiment of the present invention, Sectional view of the first pipe of the branching device according to the embodiment in the longitudinal direction.

1 to 3, the branching device 1 according to the present embodiment includes a hole coupling portion 100, a body portion 200, a sealing portion 300, and an adapter portion 400, And is connected to the second pipe 20 so as to communicate the first pipe 10 with the second pipe 20 by being connected to the branch hole 11 of the pipe 10.

The first pipe 10 is illustrated as a main pipe and the second pipe 20 is connected to the first pipe 10 by the branch device 1 mounted on the branch hole 11 of the first pipe 10 It is exemplified as branched branch piping.

FIG. 4 is a plan view and a cross-sectional view of a hole coupling unit according to an embodiment of the present invention, and FIG. 5 is a plan view and a cross-sectional view of another hole coupling unit according to an embodiment of the present invention.

2 to 5, the hole coupling portion 100 is installed in such a manner that it is inserted into the branch hole portion 11 formed in the first pipe 10. In this embodiment, the hole coupling part 100 includes the hole coupling body part 110 and the hole engagement part 130.

The hole-coupling body 110 is formed in a substantially cylindrical shape and communicates with the inside of the first pipe 10, and a thread is formed on the outer circumferential surface of the hole-coupling body 110 to be screwed with a thread formed on the inner circumferential surface of the adapter 400.

In this embodiment, one end (reference lower end in FIG. 3) of the hole-coupled body 110 is inserted into the branch hole 11, and the hole-coupling part 130 is engaged, (11) is prevented from escaping.

In the present embodiment, the hole-combined body portion 110 is formed in a ring shape and includes a material having a relatively low rigidity as compared with the shape-retaining portion 111 including the relatively high-rigidity material and the shape retaining portion 111 And a flexible portion 113 made of a metal.

Since the hole combining body portion 110 is made of different materials, the shape retaining portion 111 having a high rigidity maintains the shape of the hole combining body portion 110 and the soft portion 113 having a low rigidity is formed around And when it is combined with the apparatus, it is deformed and is brought into close contact with the neighboring structure, thereby maintaining the airtightness between the structures and improving the assembling property.

The shape retaining unit 111 and the softening unit 113 may be manufactured as a separate product and then assembled. However, the shape retaining unit 111 and the softening unit 113 may be integrally formed by injection molding or the like, thereby reducing the number of assembling processes and increasing the bonding force.

FIG. 6 is a plan view showing a state in which a rotation latch according to an embodiment of the present invention is rotated with respect to a hole-coupled body, and FIG. 7 is a cross- Fig.

6 and 7, the hole-engaging portion 130 protrudes in the radial direction of the hole-coupled body portion 110. The hole-engaged body portion 110 is in contact with the inner wall 13 of the first pipe 10, From being removed from the branch hole (11). In this embodiment, the hole engaging portion 130 includes a fixed engaging portion 131 and a rotation engaging portion 133.

The fixed engaging part 131 is fixed to the hole combining body part 110 and protrudes from the hole combining body part 110 and contacts the inner wall 13 of the first pipe 10. In this embodiment, the fastening portion 131 is integrally formed with the hole-coupling body portion 110, and the surface of the first pipe 10 in contact with the inner wall 13 has a shape corresponding to the inner wall 13, And is formed in a convex shape toward the inner wall 13 so as to be in close contact with the inner wall 13, thereby preventing the hole-coupled body 110 from flowing.

The rotation coupling portion 133 is rotatably coupled to the hole coupling body portion 110 in the circumferential direction about the center axis thereof and extends in the radial direction of the hole coupling body portion 110 to connect the inner wall of the first pipe 10 13).

The rotation engaging portion 133 is rotatably coupled to the hole engaging body portion 110 so that the hole engaging portion 100 is protruded in the same direction as the fixed engaging portion 131 when the hole engaging portion 100 enters through the branch hole portion 11. [ So that it is possible to enter through the branch hole 11.

After the rotation latching part 133 enters the branching hole part 11, it is positioned so as to protrude in the direction opposite to the fixing hooking part 131 and the hole combining body part 110 and the like are removed from the branching hole part 11 ≪ / RTI > In this embodiment, the rotation latching portion 133 includes a rotation latching body 134 and a rotation latching projection 135.

The rotation engaging body 134 is rotatably engaged in the circumferential direction of the hole combining body portion 110. In this embodiment, the rotation engaging body 134 is formed in a substantially ring shape to surround the hole combining body portion 110.

The hole engaging body portion 110 is formed with a rotation engaging groove portion 115 recessed along the circumferential direction of the hole engaging body portion 110 so that the rotation engaging body 134 is inserted into the hole engaging body portion 110, Rotation and longitudinal movement.

The rotation engaging groove 115 prevents the rotation engaging body 134 from being separated from the hole engaging body 110 and prevents the rotation engaging body 134 from rotating in the longitudinal direction of the hole engaging body 110 So that the rotation engaging body 134 and the rotation engaging protrusion 135 can be prevented from interfering with the fixed engaging portion 131. In addition,

The rotation latch protrusion 135 protrudes from the rotation latch body 134 and contacts the inner wall of the first pipe 10. In this embodiment, the rotation latching protrusion 135 is integrally formed with the rotation latching body 134 and protrudes in the radial direction of the rotation latching body 134. In this embodiment, the surface of the rotation engaging protrusion 135 that contacts the inner wall 13 is formed in a shape corresponding to the shape of the inner wall 13 and is brought into close contact with the inner wall 13.

8 is a cutaway view illustrating a body according to an embodiment of the present invention. Referring to FIGS. 2, 3 and 8, the body 200 surrounds the hole coupling part 100 and contacts the first pipe 10. The body part 200 includes the body main part 210 and the body inclined part 230 so as to prevent the sealing part 300 located between the body part 200 and the hole engaging part 100 from being separated, It is possible to prevent the sealing portion 300 and the hole connecting portion 100 from being damaged due to the impact of,

The body main portion 210 is spaced apart from the hole coupling portion 100 and surrounds the hole coupling portion 100. In this embodiment, the body main portion 210 is formed in a substantially cylindrical shape, and the hole coupling portion 100 is positioned on the inner side so as to be spaced apart.

The body slope part 230 extends from the body main part 210 toward the first pipe 10 and is formed so as to have an inner diameter narrower toward the first pipe 10 and to contact the outer circumferential surface of the first pipe 10.

In this embodiment, the body slope part 230 is formed in a swaging manner so that the outer diameter and the inner diameter of the body slope part 230 are reduced so as to prevent the sealing part 300 and the like, The sealing part 300 can be intensively compressed so that the sealing performance of the sealing part 300 is maximized.

In this embodiment, the body part 200 further includes a sealing part fixing protrusion 250. The sealing part fixing protrusion 250 protrudes from the inner circumferential surface of the body main part 210 or the body slope part 230 and engages with the sealing part 300 so that the position of the sealing part 300 can be easily set.

In this embodiment, the body part 200 is processed by the cold firing method to secure the mechanical performance of the molding part, enable precision machining, and minimize the tolerance with the peripheral device, for example, the first pipe 10 .

The sealing portion 300 is sandwiched between the body portion 200 and the hole coupling portion 100 and may be exemplified by a material having excellent fire resistance and abrasion resistance, for example, a silicon packing.

In this embodiment, the sealing portion 300 is formed in a wedge shape in cross section, which is narrowed in thickness, as it proceeds toward the first pipe 10, and is sandwiched between the body inclined portion 230 and the hole coupling portion 100. In this embodiment, the sealing portion 300 includes the sealing body portion 310 and the adapter fixing groove portion 330.

The sealing body 310 is formed in a ring shape so that the inner circumferential surface thereof is in contact with the outer circumferential surface of the hole engaging portion 100 and the outer circumferential surface thereof is in contact with the inner circumferential surface of the body incline portion 230, (100).

The adapter fixing groove portion 330 is recessed at an end portion of the sealing body portion 310 that contacts the adapter portion 400 and is engaged with the adapter portion 400 to prevent the adapter portion 400 from moving or departing.

The sealing part 300 is formed in a concave shape on the outer circumferential surface contacting the body part 200 so that the sealing part fixing protrusion 250 of the body part 200 is fixed to the sealing part fixing groove part 350. [ (Not shown). The sealing part fixing groove part 350 is symmetrically formed around the rotation axis of the sealing body part 310 and is engaged with the sealing part fixing protrusion 250.

The adapter unit 400 is coupled to the hole coupling unit 100 while pressing the sealing unit 300 and the second pipe 20 is connected to the first pipe 10 so that the first pipe 10 is connected to the hole coupling unit 100, And can be branched to the second pipe 20 through the adapter unit 400. In this embodiment, the adapter part 400 includes the adapter coupling part 410 and the second pipe connection part 430.

The adapter engaging portion 410 enters between the hole engaging portion 100 and the body portion 200 and is screwed into the hole engaging portion 100. In this embodiment, the adapter coupling portion 410 includes the adapter coupling body 411 and the hole coupling entrance restriction portion 413.

The adapter coupling body 411 enters between the hole coupling part 100 and the body part 200 to press the sealing part 300 and form a thread on the inner circumferential surface to be screwed to the hole coupling part 100.

The hole joining entry restricting portion 413 is protruded from the inner circumferential surface of the adapter engaging body 411 so as to limit the distance that the hole engaging portion 100 enters the inside of the adapter engaging body 411. [

In this embodiment, the hole-joining entry restricting portion 413 is located at one side of the thread of the adapter-engaging body 411, and the hole-engaging portion 100, which is screwed to the thread of the adapter-engaging body 411, So that the hole engaging portion 100 is prevented from entering the inside of the adapter engaging body 411 so that the hole engaging portion 100 is engaged with the hole engaging restriction portion 413.

The second piping connection part 430 is connected to the adapter coupling part 410, and the second piping 20 is detachably screwed.

9 is a cutaway view showing an adapter unit according to the first embodiment of the present invention. 2, 3 and 9, in the adapter 400a according to the first embodiment, the second pipe connection portion 430a is formed integrally with the adapter coupling portion 410, and a thread is formed on the inner peripheral surface thereof, And is screwed to the outer peripheral surface of the pipe 20.

FIG. 10 is a cutaway view showing an adapter unit according to a second embodiment of the present invention, FIG. 11 is a cutaway view showing a state in which the second pipe fixing unit is separated from the adapter unit according to the second embodiment of the present invention, Is a cutaway view showing a second pipe fixing portion according to a second embodiment of the present invention.

FIG. 13 is a plan view showing a second pipe fixing part according to a second embodiment of the present invention, and FIG. 14 is an incision view showing a state where a second pipe part of the adapter part according to the second embodiment of the present invention is engaged.

Referring to FIGS. 2, 3, and 10 to 14, in the second embodiment, the adapter unit 400b includes a second pipe connection body 431 and a second pipe fixing unit (not shown) 433) to the second pipe (20).

The second piping connection body 431 is integrally connected to the adapter coupling part 410 and includes a metal material. The second piping connection body 431 is inclined with respect to the inner circumferential surface so that the inner diameter of the second piping connection body 431 becomes narrower as the second piping 20 is inserted. Is formed.

The second pipe fixing portion 433 is screwed into the second pipe connecting body 431 and is sandwiched between the second pipe connecting body 431 and the second pipe 20. In this embodiment, the second pipe fixing portion 433 includes a second pipe fixing body 434 and a second pipe fixing groove portion 435.

The second pipe fixing body 434 is formed into a ring shape having a reduced thickness while advancing in the direction in which the second pipe 20 is advanced. The second pipe fixing body 434 is screwed to the second pipe 20 by a thread formed on the inner circumferential surface, The thread formed on the outer circumferential surface is screwed to the second pipe connecting body 431.

The second pipe fixing portion 433 is screwed to the second pipe 20 and at the same time is rotated in the inner circumferential surface of the second pipe connecting body 431 and is moved in the entering direction of the second pipe 20 and is compressively deformed, Thereby sealing between the second pipe 20 and the second pipe connecting body 431.

The second piping fixing groove portion 435 is recessed in the inner circumferential surface of the second piping fixing body 434 so that the second piping 20 is screwed to the second piping fixing body 434, A force for pressing the second pipe fixing body 434 when the second pipe 20 is fastened to the second pipe fixing body 434, The second pipe fixing body 434 is more closely attached to the second pipe 20 side so that the second pipe 20 can be fixed and sealed.

The plurality of second pipe fixing grooves 435 are spaced apart from each other along the inner circumferential surface of the second pipe fixing body 434 to prevent the specific position from being excessively compressed and deformed, So that it can be uniformly adhered and fixed to the circumferential surface of the two pipe 20.

In this embodiment, the branching device 1 further includes a body fixing part 500. [ The body fixing part 500 is coupled to the outer circumferential surface of the adapter part 400. The body fixing part 500 is in contact with the body part 200 so that the body part 200 can be inserted into the adapter part 400 in the longitudinal direction of the adapter part 400, .

In this embodiment, the body fixing part 500 is formed in the shape of a ring of metal, and a screw thread is formed on the inner circumferential surface thereof and screwed to the adapter part 400, specifically, the outer peripheral surface of the adapter coupling part 410.

The body fixing part 500 can adjust the distance between the body fixing part 500 and the first pipe 10 by adjusting the degree of thread engagement with the adapter fitting part 410. The body part 500 interposed between the first pipes 10 200 to the side of the first pipe 10 to prevent the flow of the body part 200.

The surface of the body fixing part 500 contacting the body part 200 is concave corresponding to the shape of the body part 200 to more securely fix the position of the body part 200, Can be prevented from flowing.

Hereinafter, the operation principle and effects of the branching device 1 according to an embodiment of the present invention will be described.

First, the rotation engaging portion 133 is rotated so that the projecting direction of the rotation engaging projection 135 of the hole engaging portion 100 and the engaging portion 131 coincide with each other. The rotation engaging portion 133 is fitted in the rotation engaging groove 115 formed in the outer circumferential surface of the hole engaging body portion 110 so that the rotation engaging portion 133 is rotatable with respect to the hole engaging body portion 110, 110, so that it can be rotated so as to overlap the upper or lower side of the fixed engaging portion 131. [

When the protruding direction of the rotation engaging protrusion 135 and the fixing engaging portion 131 are aligned with each other, the hole engaging portion 100 is inserted into the branching hall portion 11 so that the rotation engaging protrusion 135 and the fixing engaging portion 131 are inserted into the branching hall portion 11 Is inserted into the branch hole (11).

When the hole coupling portion 100 is inserted into the branch hole portion 11, the hole coupling body portion 110 is rotated while the rotation coupling portion 133 is in contact with the inner wall 13 of the first pipe 10, The engaging part 131 is protruded in the direction opposite to the rotation engaging part 133 so that the rotation engaging protrusion 135 and the fixed engaging part 131 are arranged in the longitudinal direction of the first pipe 10.

The rotation hook protrusion 135 and the fixing hook 131 are arranged in the longitudinal direction of the first pipe 10 and the rotation hook protrusion 135 and the fixing hook 131 are connected to the inner wall 13 of the first pipe 10 The hole connecting portion 100 is prevented from being detached from the branch hole portion 11 so that the body portion 200 to be mounted thereafter and the sealing portion Thereby enabling mounting of the part 300 and the adapter part 400.

Since the rotation hook protrusion 135 and the fixing hook 131 are provided to be hooked on the inner wall 13 of the first pipe 10, the body part 200 or the adapter part 400 is inserted into the hole coupling part 100 A force for compressing the body part 200, the sealing part 300, and the like is generated by generating a reaction force while being hung on the inner wall 13 of the first pipe 10, Increase.

When the hole coupling part 100 is mounted on the first pipe 10, the body part 200 and the sealing part 300 are positioned so as to surround the hole coupling part 100, (100).

The adapter unit 400 is screwed into the hole coupling unit 100 and enters between the body unit 200 and the hole coupling unit 100 to compress the sealing unit 300. The degree to which the hole coupling part 100 enters into the adapter part 400 according to the coupling of the adapter part 400 and the hole coupling part 100 is limited by the hole coupling restriction part 413.

Therefore, the operator does not have to separately check the fastening position of the adapter unit 400 and the hole coupling unit 100, and the sealing unit 300 and the body unit 200 and the like are excessively compressed to be prevented from being damaged or deformed.

The branching device 1 further includes a body fixing part 500 to adjust the position of the adapter part 400 so that the degree of pressing the body part 200 toward the first pipe 10 side So that the flow of the body 200 can be prevented.

When the coupling of the adapter unit 400 and the hole coupling unit 100 is completed, the second piping 20 is attached to the adapter unit 400, and the branching process is completed.

Thus, the branching device 1 according to the present embodiment is capable of branching the first pipe 10 without welding, facilitating the branching process, securing the branching quality irrespective of the skill of the operator, It is easy to manage and has excellent airtightness.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Therefore, the technical scope of the present invention should be defined by the following claims.

1: branching device 10: first piping
11: branch hole portion 13: inner wall
20: second piping 100: hole coupling part
110: hole coupling body part 111: shape holding part
113: soft portion 115: rotation engaging mounting groove
130: hole engaging portion 131: fixed engaging portion
133: rotation engaging part 134: rotation engaging body
135: rotation engaging projection 200:
210: body main part 230: body inclined part
250: sealing part fixing protrusion 300: sealing part
310: sealing body part 330: adapter fixing groove part
350: sealing part fixing groove part 400: adapter part
410: Adapter coupling part 411: Adapter coupling body
413: hole joining entrance restricting portion 430: second pipe connecting portion
431: second pipe connecting body 432: inclined surface
433: second pipe fixing portion 434: second pipe fixing body
435: second pipe fixing groove portion 500: body fixing portion

Claims (12)

A hole coupling portion provided in a branch hole portion formed in the first pipe;
A body portion surrounding the hole coupling portion and contacting the first pipe;
A sealing part sandwiched between the body part and the hole engaging part; And
And an adapter unit coupled to the hole coupling unit while pressurizing the sealing unit and communicating with the second pipe,
The hole-
A hole coupling body coupled to the adapter and having one end inserted into the branch hole; And
And a hole engagement protrusion protruding from the hole-coupled body portion and contacting the inner wall of the first pipe to prevent the hole-coupled body from being separated from the branch hole portion,
The hole-
A fixing part fixed to the hole-coupled body part and protruding from the hole-coupled body part and contacting the inner wall of the first pipe; And
A rotation engaging portion rotatably coupled to the hole-coupled body portion and contacting the inner wall of the first pipe;
The branching device comprising:
delete delete The apparatus according to claim 1,
A rotation engaging body rotatably coupled to the hole-coupled body portion; And
A rotation latch protrusion protruding from the rotation latch body and contacting the inner wall of the first pipe;
The branching device comprising:
A hole coupling portion provided in a branch hole portion formed in the first pipe;
A body portion surrounding the hole coupling portion and contacting the first pipe;
A sealing part sandwiched between the body part and the hole engaging part; And
And an adapter unit coupled to the hole coupling unit while pressurizing the sealing unit and communicating with the second pipe,
The body part
A body main portion spaced apart from the hole coupling portion and surrounding the hole coupling portion; And
A body sloping portion extending from the body main portion, the body sloping portion being formed so as to have an inner diameter narrowed toward the first pipe side and in contact with an outer peripheral surface of the first pipe;
The branching device comprising:
[6] The apparatus of claim 5,
A sealing part fixing protrusion formed on an inner peripheral surface of the body main part or the body inclined part and engaged with the sealing part;
Further comprising:
6. The apparatus according to claim 5,
And the second branch pipe is formed in a shape that the thickness thereof becomes narrower as it proceeds toward the first pipe, and is sandwiched between the body inclined portion and the hole engaging portion.
8. The apparatus according to claim 7,
A sealing body portion sandwiched between the body inclined portion and the hole engaging portion; And
An adapter fixing groove portion formed concavely in the sealing body portion and engaged with the adapter portion;
The branching device comprising:
9. The adapter unit according to any one of claims 1 to 8,
An adapter coupling portion that enters between the hole coupling portion and the body portion and is screwed into the hole coupling portion; And
A second pipe connection portion connected to the adapter coupling portion and detachably connected to the second pipe;
The branching device comprising:
A hole coupling portion provided in a branch hole portion formed in the first pipe;
A body portion surrounding the hole coupling portion and contacting the first pipe;
A sealing part sandwiched between the body part and the hole engaging part; And
And an adapter unit coupled to the hole coupling unit while pressurizing the sealing unit and communicating with the second pipe,
The adapter unit,
An adapter coupling portion that enters between the hole coupling portion and the body portion and is screwed into the hole coupling portion; And
And a second pipe connection part connected to the adapter coupling part and detachably coupled with the second pipe,
Wherein the adapter-
An adapter engaging body which enters between the hole engaging portion and the body portion to press the sealing portion and has a thread formed on an inner peripheral surface thereof and is threadedly engaged with the hole engaging portion; And
A hole-coupling-in restricting portion protruding from an inner circumferential surface of the adapter-coupling body, the hole-coupling-restricting portion limiting a distance of the hole-coupling portion entering the adapter-coupling body;
The branching device comprising:
A hole coupling portion provided in a branch hole portion formed in the first pipe;
A body portion surrounding the hole coupling portion and contacting the first pipe;
A sealing part sandwiched between the body part and the hole engaging part; And
And an adapter unit coupled to the hole coupling unit while pressurizing the sealing unit and communicating with the second pipe,
The adapter unit,
An adapter coupling portion that enters between the hole coupling portion and the body portion and is screwed into the hole coupling portion; And
And a second pipe connection part connected to the adapter coupling part and detachably coupled with the second pipe,
Wherein the second pipe connection portion comprises:
A second pipe connection body connected to the adapter coupling portion and having an inclined surface formed in a direction in which the second pipe is inserted and having an inner diameter narrowed; And
A second pipe fixing part threadably engaged with the second pipe connection body, and sandwiched between the second pipe connection body and the second pipe;
The branching device comprising:
12. The apparatus according to claim 11, wherein the second pipe-
A second pipe fixing body sandwiched between the second pipe connection body and the second pipe such that an outer circumferential surface thereof contacts the inclined surface; And
A second pipe fixing groove portion formed concavely on an inner circumferential surface of the second pipe fixing body and being contracted in accordance with a degree of insertion of the second pipe;
The branching device comprising:

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