KR100876309B1 - Apparatus for connection of branch pipe - Google Patents

Abstract

A branch pipe connecting device is provided to connect a branch pipe to a main pipe easily and quickly and prevent the connected branch pipe from separating from the main pipe. A branch pipe connecting device comprises a branch port(10) which includes a connection pipe(100) in which a branch pipe(3) is inserted and combined, a flange(101) adhering closely to the outside surface of a main pipe(2) in which a drain hole(20) is punched is formed, a plurality of fixing blocks(103) are protruded, and a fixing hole(104) is penetrated from the upper side of the fixing block to a guide groove; a watertight packing(11) interposed between the lower surface of the flange and the outside surface of a main pipe; and a branch port fixing unit(12) which includes an anchor bolt(120), a fixing piece(121) coupled to the lower part of the anchor bolt, and a fixing nut(122) screwed to a screw thread(120a), and fixes the branch pipe to the main pipe.

Description

Apparatus for connection of branch pipe}

The present invention relates to a branch pipe connecting device, and more particularly, to connect a branch pipe to a drainage hole formed in the main pipe in order to classify or branch the fluid flowing inside the main pipe through the branch pipe in a predetermined direction rather than a straight direction. It relates to a branch pipe connecting device for making.

Hereinafter, the background art and its problems will be described.

In general, the pipe is for transporting fluid, and is widely applied in various fields such as industrial sites and water, sewage, pressure pipes, heat exchangers, and structures, and is made of metal or nonmetallic materials.

In order to change the flow direction of the fluid flowing through the pipe to supply the fluid to a predetermined place required by the operator, rubber hoses having different diameters or having the same diameter or made of a metal material or a non-metal material Branch pipes were prepared and the main and branch pipes were interconnected.

However, such a conventional connection method is generally a one-to-one correspondence of the hoses or pipes to each other, the connection of the end of each hose to be connected to each other to be in contact with each other, so that the operator is made to go straight in the advancing direction of the hoses or pipes It is not easy to install the hose or tube in any other desired direction, which makes it difficult to transfer the fluid flowing inside the hose or tube in a predetermined direction rather than a straight direction.

Thus, in order to classify or divert the flow direction of the fluid in a predetermined direction, branching holes communicating with the inside are formed in the outer peripheral part of the main pipe, and branching pipes are connected to the branching holes, and branching pipes are connected to the branching holes as described above. In order to do this, a branch pipe joint or a branch pipe joint disclosed in Japanese Patent Laid-Open No. 7-332567 is conventionally used.

The branch pipe connector disclosed in the Patent Publication No. 072118 is made of a rigid body as a whole and a cylindrical body from the top to the bottom, and the lower portion has an outer diameter equal to the diameter of the branch hole formed outwardly protruding from the center and Consists of a saddle-shaped main wing, the outer periphery of the upper body is made smaller than the branch hole formed in the main pipe, the thread is formed on the outer periphery, the upper packing is fitted along the circumference of the upper body It is formed, one or two sliding grooves are formed in the vertical direction to the outer periphery, the inner circumferential surface is made of a constant inner diameter, the inner diameter is reduced to go to the lower portion of the main body formed with a seating portion is seated end of the branch pipe; The upper part has a saddle shape while having an overall cylindrical contact portion, the inner circumferential surface of which is in contact with the outer periphery of the main body, and a portion of the outer periphery, which is configured to be in close contact with the circumference of the branch hole. packing; Cylindrical support body, the support wing portion protruding outward from the lower portion of the upper support body and formed in a saddle shape in order to prevent the main body from swinging by contacting the outer periphery of the body at regular intervals along the outer periphery of the upper support body A support washer formed of a triangular support piece which extends to the upper surface of the upper support wing, and a sliding washer formed to protrude inwardly toward the center with a predetermined volume on the inner circumferential surface of the support body so as to fit in the slide groove of the main body; A lower nut as a lower fastening means inserted into a screw thread formed on an outer circumference of the main body and screwed thereon, the lower nut being configured to be mounted on an upper surface of the upper support washer, and having a longitudinal fastening groove formed at a predetermined interval on the outer circumference; As a watertight means of the part in contact with the branch pipe is generally formed in a band shape, the outer surface of the upper portion is an inclined portion of the outer diameter increases as the lower down, the inner portion of the upper protrusion protruding downward along the inner circumferential surface, the lower body fitting An upper packing as an upper watertight means formed with a fitting protrusion that can be fitted into the groove so that the inner circumferential surface thereof closely surrounds the outer circumferential surface of the branch pipe; And an upper fastening means which allows the upper packing to be in close contact with the outer circumference of the branch pipe, is screwed into the thread formed in the outer circumference of the main body, and is coupled to the length of the longitudinal direction at regular intervals on the outer circumference. The inside of the upper nut formed with a pressing portion of a shape corresponding to the upper packing inclined portion.

Further, the branch pipe joint disclosed in Japanese Patent Laid-Open No. Hei 7-332567 has a lower end portion formed in a shape corresponding to a fitting mouth provided in a field tube, and a second short tube in which an annular groove is provided on the outer periphery of the lower end portion. And a receiving end tube having an upper end portion in the lower end portion of the first short tube which is provided with a receiving port for connecting the branch pipe at the upper end portion thereof, and integrated and formed using an adhesive, and a lower end surface of the annular groove and the first short tube. A start pipe part which is slidably mounted to the outer periphery of the receiving mouth pipe during installation, is provided below the starting pipe part, and is formed to be in close contact with the outer surface of the mouth mouth periphery when the receiving mouth pipe is inserted into the mounting mouth of the field pipe. A saddle having a saddle body to be fitted, a har ring mounted slidably in an annular groove of the receiving end pipe, the ring and the saddle; A rubber wheel which is slidably mounted to the receiving end pipe and has a thickness equal to or greater than the thickness of the field pipe, and at least a part of which is filled in a gap between the mouth and the receiving end pipe during installation, and the first short pipe; An operation ring rotatably mounted between the lower end surface of the receiving end pipe and the saddle as a central axis of the receiving end pipe, wherein the annular groove of the receiving end pipe includes: The small diameter part which keeps the outer diameter of a ring to the diameter smaller than the mounting mouth of the said field tube is provided, and the large diameter part which keeps the outer diameter of the said ring to a diameter larger than the mounting mouth of the said field tube is the said small diameter part. It is provided below the neck part, and the lower end surface of the said operation ring and a 1st short pipe | tube, or in the rise pipe part of the said operation ring and the saddle is used for the rotation operation of the said operation ring. Field tube It is a branch pipe joint provided with the uneven | corrugated engagement part which pulled up the receiving end pipe | tube with respect to the saddle, and arrange | positioned so that the said ring can be arrange | positioned to the large diameter part of an annular groove, and a said 2nd short pipe | tube is opened to an upper end part. It is characterized in that the engaging groove parallel to the tube axis is provided on the outer wall surface, and the projection provided on the inner wall surface of the moving tube part of the saddle is engaged freely in the engaging groove.

However, the branch pipe joint or the branch pipe joint disclosed in Japanese Patent Application Laid-open No. Hei 7-332567 disclosed in the above-described Patent Publication No. 072118 has a very complicated shape and many components, and thus, the production cost is very high. In addition, there is a problem that the connection construction of the main building and branch pipes is very difficult and takes a long time.

In addition, due to the complex and many components during maintenance work and replacement work, the separation of the branch pipe from the main building takes a very long time, and the connection work is very difficult and long when reconnecting. Not only does it take a very long time, but the manufacturing cost is very expensive, maintenance and replacement costs are very high.

In addition, there is a problem that the branch pipe connection or branch pipe joints are weak in the structure that connects the main pipe to the main building, so that when the water pressure or various external forces are applied, the branch pipe connection or the branch pipe joint is frequently separated from the main pipe.

Accordingly, it is an object of the present invention to provide a branch pipe connecting device that enables to connect the main pipe to the main building very quickly and easily so that the main building and the branch pipe can be easily connected, maintained and replaced. .

Another object of the present invention is that the overall configuration is very simple, so that not only can significantly reduce the manufacturing cost, but also prevent the separation of the branch pipe from the main building during use, and to maintain perfect watertightness. By providing a branch pipe connecting device that allows customers to significantly improve the reliability of the product.

Still another object of the present invention is to provide a branch pipe connecting device that can significantly reduce the production cost of a product by reducing the mold manufacturing cost.

In order to achieve the above object, the present invention, in the branch pipe connection device for connecting the main pipe in which the drainage hole is drilled, and the branch pipe connecting the main pipe from the home, etc., the joint pipe is inserted and coupled to the upper portion Is provided in, the lower portion of the fitting pipe is formed with a flange portion in close contact with the outer peripheral surface of the main pipe perforated drain hole, the lower surface of the flange portion is formed so that a plurality of guide grooves are spaced at a predetermined interval is inserted into the drain hole A branch formed to protrude, and a plurality of fixing blocks protrude from the upper surface of the flange portion so as to be positioned above the guide grooves, and branch holes through which fixing holes pass from the upper surface of the fixing block to the guide grooves; A watertight packing interposed between the lower surface of the flange portion of the branch pipe and the outer circumferential surface of the main pipe; And a fixing bolt inserted into the fixing hole and having a screw portion formed at an upper end thereof, a fixing tool mounted to a lower end of the fixing bolt, and a fixing nut screwed to the screw portion, thereby screwing the fixing nut to the fixing bolt. The upper surface of the fixture is in close contact with the inner circumferential surface of the main pipe to provide a branch pipe connection device comprising a; branch pipe fixing means for fixing the branch pipe to the main pipe.

As described above, the branch pipe connecting device according to the present invention has a very simple structure of the branch pipe and the branch pipe fixing means, which can greatly reduce the manufacturing cost, and the branch pipe is formed with a drainage hole. It can be attached very quickly and easily to the outer circumference of the main building, which greatly shortens the construction time and can easily perform the connection work between the branch pipe and the main building, and can be easily maintained and repaired. In addition, the replacement operation is also very effective to be made.

In addition, the branching pipe is firmly attached to the main building by the branching pipe fixing means, thereby preventing the phenomenon that the branching pipe is separated from the main building during use.

In addition, even in a very simple configuration, it is possible to completely seal the area where the main pipe and the flange part are connected, and the area where the fixing hole and the branch pipe and the branch pipe are connected, thereby greatly improving the reliability of the product. have.

In addition, the lower surface is formed to be the same as the curvature of the watertight packing, the upper surface is formed between the watertight packing and the flange portion of the round spacer formed to be the same as the curvature of the flange portion, even if the diameter size of the main pipe branch and watertight packing It is not necessary to replace the, and even if the diameter of the drain hole is formed larger than the outer diameter of the support by allowing the spacer to be inserted into the support, it is possible to significantly reduce the mold manufacturing cost by not having to replace the branch pipe, thereby The production cost of the product is also effective to significantly reduce.

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

1 is a view showing a state connecting the branch pipe to the main pipe using a branch pipe connecting device according to the present invention, Figure 2 is an exploded perspective view of the branch pipe connecting device according to the present invention, Figure 3 4 is a sectional view taken along line AA of FIG. 1, and FIG. 5 is a sectional view taken along line BB when a corrugated pipe is used as the main pipe in FIG. 1.

1 to 5, the branch pipe connecting device 1 according to an embodiment of the present invention comprises a branch pipe 10, a watertight packing 11 and the branch pipe fixing means 12.

Branching pipe 10 of the branch pipe connecting device 1 is configured as described above, the joint pipe 100 is inserted into the branch pipe 3 is coupled to the upper portion is provided, the lower portion of the joint pipe 100 A flange portion 101 is formed to be in close contact with the outer circumferential surface of the main pipe 2 in which the drainage hole 20 is drilled, and a plurality of guide grooves 102a are formed on the lower surface of the flange portion 101 to be spaced at a predetermined interval. The support 102 inserted into the drainage hole 20 is formed to protrude, and a plurality of fixing blocks 103 are formed to protrude from the upper surface of the flange portion 101 so as to be positioned above the guide groove 102a. The fixing hole 104 penetrates from the upper surface of the fixing block 103 to the guide groove 102a.

In addition, the watertight packing 11 is interposed between the lower surface of the flange portion 101 of the branch pipe 10 and the outer circumferential surface of the main pipe 2, and the upper surface and the lower surface of the watertight packing 11 The branching pipe 10 may be coated with an adhesive or a double-sided tape (not shown) so that the watertight packing 11 may be firmly attached to the lower surface of the flange portion 101 and the outer circumferential surface of the main pipe 2. It is preferable to be interposed between the lower surface of the flange portion 101 of the) and the outer peripheral surface of the main pipe (2).

The branch pipe fixing means 12 is inserted into the fixing hole 104, the fixing bolt 120 is formed in the upper end of the screw portion (120a), and the fastener 121 is mounted to the lower end of the fixing bolt 120 And a fixing nut 122 screwed to the screw part 120a, and the upper surface of the fixture 121 is screwed into the main body 2 by screwing the fixing nut 122 to the fixing bolt 120. In close contact with the inner circumferential surface of the) to fix the branch pipe 101 to the main pipe (2).

Here, the connector 124 is further protruded from the lower end of the fixing bolt 120, the lower end of the outer peripheral surface of the connector 124 is formed with a screw portion (124a), the fixing hole in one end of the fixing hole 121 121a is formed, and the connector 124 is inserted into the fixing hole 121a, and then the fixing nut 125 is screwed into the threaded portion of the connector 124 so that the fixture 121 is detachable and the It can be mounted to the lower end of the fixing bolt 120 to be rotatable about the connector 124.

The outer circumferential surface of the fixing bolt 120 is pressed by the upper surface of the fixing tool 121 and the fixing nut 122 to be inserted between the outer circumferential surface of the fixing bolt 120 and the fixing hole 104 to fix the fixing bolt 120 and A pair of watertight packings 13 for sealing between the fixing holes 104 are further inserted, and a retainer 123 is further disposed between the pair of watertight packings 13 and the fixture 121 and the fixing nut 122. May be interposed.

In addition, the fastener 121 is preferably formed to have a same curvature as the inner circumferential surface of the main tube 2, the upper surface is in close contact so that the entire inner circumferential surface and the upper surface of the main tube 2 is in close contact. .

In addition, the upper surface of the fastener 121, as the upper surface of the fastener 121 is in close contact with the inner circumferential surface of the main tube 2, the damage prevention pad 14 for preventing the main tube 2 is further damaged. It is preferable to attach.

4 and 5, when the curvature of the outer circumferential surface of the main building 2 and the curvature of the watertight packing 11 and the flange portion 101 are equal to each other, the watertight packing 11 is removed. Although directly attached to the outer circumferential surface of the main tube 2, the curvature of the outer circumferential surface of the main tube 2 and the curvature of the watertight packing 11 and the flange portion 101 as shown in the enlarged view B of Figs. When different from each other, a round spacer 16 having a watertight packing 17 attached to the top surface may be further interposed between the top surface of the watertight packing 11 and the bottom surface of the flange portion 101.

The round spacer 16 is preferably formed such that the upper surface has the same curvature as the lower surface of the flange portion 101, and the lower surface has the same curvature as the upper surface of the watertight packing 11.

As described above, the upper surface between the upper surface of the watertight packing 11 and the lower surface of the flange portion 101 has the same curvature as the lower surface of the flange portion 101, the lower surface of the upper surface of the watertight packing 11 By interposing a round spacer 16 having the same curvature as that of the main tube 2, the curvature of the outer circumferential surface of the main tube 2 can be changed without changing the watertight packing 11 and the branching tube 10. Make sure

In addition, as shown in the enlarged view B of FIG. 5, the curvature of the outer circumferential surface of the main tube 2 and the curvature of the watertight packing 11 and the flange portion 101 are different from each other, and a plurality of recesses 21 and When the branch 22 is connected to the main tube 2 in which the groove part 22 is alternately formed, a plurality of insertion protrusions are inserted into the groove part 22 of the main tube 2 in the lower surface of the watertight packing 11. 112 further protrudes, and further includes a round spacer 16 having a watertight packing 17 attached to an upper surface between an upper surface of the watertight packing 11 and a lower surface of the flange portion 101.

In addition, as shown in the enlarged view A of FIG. 5, the branch pipe 10 is connected to the main tube 2 in which the plurality of recesses 21 and the grooves 22 are alternately formed on the outer circumferential surface, and the outer circumferential surface of the main tube 2 is formed. Even if the curvature of the watertight packing 11 and the flange portion 101 is formed to be the same as the curvature of the round spacer 16, even if it is not necessary to use, the bottom surface of the watertight packing 11 in the groove portion of the main ( A plurality of insertion protrusions 112 inserted into 22 may be further protruded.

Referring to Figure 6 will be described with respect to the fitting pipe and branch pipe fixing means.

6 is a cross-sectional view for explaining the configuration of the fitting pipe and the branch pipe fixing means according to the present invention, Figure 7 is a cross-sectional view for explaining the auxiliary fastener according to the present invention.

As shown in FIG. 6, the joint pipe 100 of the branch pipe 10 is tapered so that its inner circumferential surface becomes smaller in diameter from the upper end to the lower end so as to facilitate the insertion of the branch pipe 3. Branch pipe support jaw (100a) for supporting the lower end of the branch pipe (3) is formed on the lower end of the inner peripheral surface of the pipe (100), the threaded portion (100b) is formed on the upper end of the outer peripheral surface of the pipe 100, The upper end of the inner circumferential surface of the (100) is formed of the packing support jaw (100c), the branch pipe fixing means 15 is mounted on the upper end of the joint pipe 100 is formed as described above the branch pipe (100) 3) is fixed.

As shown in FIG. 6, the branch pipe fixing means includes a watertight packing 150 seated on the packing support jaw 100c, and a branch pipe 3 that is screwed to an upper end of an outer circumferential surface of the joint pipe 100. At the same time it is fixed to the fixing nut 151 for pressing the upper surface of the watertight packing 150.

The watertight packing 150 of the branch pipe fixing means 15 configured as described above is formed in a ring shape and is seated on the packing support jaw 100c of the fitting pipe 100 to be pressed by the fixing nut 151. As the body portion 150a is protruded into the body portion 150a and the branch pipe 3 is inserted into the fitting pipe 100, the outer circumferential surface of the branch pipe 3 and the fitting pipe 100 are formed. It consists of the watertight wing part 150b interposed between inner peripheral surfaces.

In addition, the fixing nut 151 is screwed to the threaded portion 100b formed at the upper end of the outer circumferential surface of the joint pipe 100 to fix the branch pipe 3 to the joint pipe 100 and at the same time, the upper surface inside. The packing fixing protrusion 151a is formed to protrude and pressurize and fix the body portion 150a of the watertight packing 150.

In addition, when using the branch pipe (3) having a diameter smaller than the diameter of the fitting pipe 100 as shown in Figure 7, the auxiliary fastener 152 to the threaded portion (100b) of the fitting pipe 100 After the screw is fastened, the branch pipe 3 is inserted into the auxiliary fastener 152, and then the branch pipe fixing means 15 is fastened to the upper end of the auxiliary fastener 152 to connect the branch pipe 3 to each other. Make sure you can connect.

That is, the auxiliary fastener 152 as described above has a threaded portion 152a formed on an inner circumferential surface thereof, and has a lower fastening portion 152b and a lower fastening portion 152 that are screwed to the threaded portion 100b of the joint pipe 100. Is formed on the upper surface of the threaded portion 152c is formed on the upper end of the outer peripheral surface, the inner peripheral surface is formed to be tapered so that the width becomes narrower from the upper end to the lower end direction, the auxiliary connector (152d) formed with a branch pipe support jaw (152f) at the lower end of the inner peripheral surface Consisting of the lower fastening portion 152b of the auxiliary fastener 152 configured as described above to the screw portion (100b) of the joint pipe 100, the lower fastening portion (152b) and the joint pipe 100 The O-ring 153 is interposed between the upper surface and the lower fastening portion 152b of the joint pipe 100 to seal the gap therebetween.

After screwing the auxiliary fastener 152 to the upper end of the joint pipe 100 as described above, the branch pipe 3 is inserted into the auxiliary fastener 152, and then As in the case of fastening the branch pipe fixing means 15 to the upper end to fix the branch pipe 3, the branch pipe fixing means 15 is screwed to the threaded portion 152c formed at the upper end of the auxiliary connector 152d. Fix the engine (3).

Again, referring to Figures 1 to 7 look at the process of connecting the branch pipe to the main building using the branch pipe connecting device according to the present invention.

In order to connect the branch pipe to the main pipe using the branch pipe connecting device according to the present invention with reference to FIGS. 1 to 7, first, the retainer 123 at the lower end of the fixing bolt 120 fitted with the watertight packing 13 at the lower end of the outer circumferential surface thereof. ) And then inserting the connector 124 protruding from the lower end of the fixing bolt 120 into the fixing hole 121a of the fixing member 121, and then fixing nut (124a) to the screw portion 124a of the connecting member 124. Fasten the fastener 121 to the lower end of the fixing bolt 120 by screwing 125).

Here, the fixture 121 is mounted to the connector 124 to be detachable by the fixing nut 125 to the diameter size of the main tube (2) so that the entire upper surface is in close contact with the inner peripheral surface of the main tube (2). A match is selected to allow mounting to the connector 124.

After mounting the fixture 121 so as to rotate as described above, the fixing bolt 120 is inserted from the lower end of the fixing hole 104 in the direction of the upper end, and then between the fixing hole 104 and the fixing bolt 120 The watertight packing 13 and the retainer 123 are sequentially inserted into the center of the outer circumferential surface of the fixing bolt 120 so as to be watertight, and then the screw portion of the fixing bolt 120 protruding outside the upper surface of the fixing block 103. The fastening nut 122 is screwed to 120a) to temporarily fix the branch pipe fixing means 12 to the fixing block 103.

After temporarily fixing the branch pipe fixing means 12 to the fixing block 103 as described above, by applying an adhesive to the upper and lower surfaces of the watertight packing 11 or by attaching a double-sided tape (not shown) to the watertight After the packing 11 is attached to the lower surface of the flange portion 101, the fixture 121 of the branch pipe fixing means 12 is rotated to face the inside of the joint pipe 100, and then the support 102 The bifurcation pipe 10 is placed on the outer circumferential surface of the main pipe 2 in which the drain hole 20 is formed such that the insertion hole 10 is inserted into the drain hole 20 of the main pipe 2.

Here, when the curvature of the outer circumferential surface of the main pipe (2) and the curvature of the watertight packing 11 and the flange portion 101 are different from each other, the watertight packing ( After attaching to the upper surface of 11 first, the watertight packing 11 to which the round spacer 16 is attached is attached to the lower surface of the flange portion 101, and then the fastener of the branch pipe fixing means 12 After the 121 is rotated to face the inside of the joint pipe 100, the branch hole 10 is formed so that the support 102 is inserted into the drain hole 20 of the main pipe 2. Place it on the outer circumferential surface of the main building (2).

After placing the branch pipe 10 on the outer circumferential surface of the main pipe (2) in which the drainage hole (20) is formed as described above, and rotate the fastener (121) about the connector (124) to face the flange portion 101 side Thereafter, the fixing nut 122 screwed to the fixing bolt 120 is rotated so that the fixing bolt 120 is raised so that the upper surface of the fixture 121 mounted at the lower end of the fixing bolt 120 is the main pipe (2). In close contact with the inner circumferential surface of the c) so that the branch pipe tube 10 is fixed to the outer circumferential surface of the main pipe 2 in which the drainage hole 20 is formed by the branch pipe fixing means 12.

At this time, the fastener 121 is fixed without being rotated left and right about the connector 124 by inserting one end of the fixing hole 120a is formed into the guide groove 102a as the fixing bolt 120 is raised. It is in close contact with the inner circumferential surface of the main building (2) in a state.

After fixing the branch pipe 10 using the branch pipe fixing means 12 on the outer circumferential surface of the main pipe 2 in which the drainage hole 20 is formed as described above, the packing supporting jaw 100c of the joint pipe 100 is fixed. After the watertight packing 150 is seated in the), the lower end of the branch pipe 3 is inserted into the joint pipe 100 of the branch pipe 10 to be connected to the inside of the joint pipe 100 as described above. When the lower end portion of the branch pipe 3 is inserted, the watertight wing 150b of the watertight packing 150 is pushed by the branch pipe 3 between the outer circumferential surface of the branch pipe 3 and the inner circumferential surface of the joint pipe 100. By being sandwiched between the outer circumferential surface of the branch pipe (3) and the inner circumferential surface of the joint pipe 100 is watertight.

Here, the inner circumferential surface of the fitting pipe 100 is tapered so as to decrease in diameter from the upper end to the lower end so that the branch pipe 3 can be easily inserted and coupled.

In the above state, the fixing nut 151 is screwed to the threaded portion 100b formed at the upper end of the outer circumferential surface of the joint pipe 100 to branch the branch pipe 3 having the lower end inserted into the inner circumferential surface of the joint pipe 100. When the fixing nut 151 is screwed to the screw portion 100b formed at the upper end of the outer circumferential surface of the fitting pipe 100 as described above, the fixing fixing protrusion 151a of the fixing nut 151 is fixed. Pressurizes an upper end of the body portion 150a of the watertight packing 150 to fix the watertight packing 150.

As described above, the branch pipe connecting device 1 according to the present invention has a very simple structure of the branch pipe 10 and the branch pipe fixing means 12, which can greatly reduce the manufacturing cost thereof, The branch pipe 10 can be attached to the outer circumferential surface of the main pipe 2 in which the drainage hole 20 is formed very quickly and easily, greatly shortening the construction time, and connecting the branch pipe 3 to the main pipe 2. The construction can be easily carried out, maintenance and repair can be made easily, and the replacement work according to the long time use of the branch pipe is also very easy to effect.

Further, the branch pipe 10 is firmly attached to the main pipe 2 by the branch pipe fixing means 12, thereby preventing the branch pipe 3 from being separated from the main pipe 2 by external force or water pressure during use. It has the effect of making it possible.

In addition, even in a very simple configuration, the part where the main pipe 2 and the flange portion 101 are connected, and the part where the fixing hole 104 and the branching pipe 10 and the branch pipe 3 are connected, can be completely sealed. Therefore, the customer can greatly improve the reliability of the product.

In addition, the lower surface is formed to be the same as the curvature of the watertight packing 11, the upper surface is formed between the watertight packing 11 and the flange 101 of the round spacer 16 formed to be the same as the curvature of the flange 101. Even if the diameter of the main pipe (2) is changed by interposing in the main pipe (2), it is not necessary to replace the branch pipe (10) and the watertight packing (11) can not only significantly reduce the mold manufacturing cost but also significantly reduce the production cost of the product It has the effect of making it possible.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is a view showing a state connecting the branch pipe to the main pipe using a branch pipe connecting device according to the present invention.

Figure 2 is an exploded perspective view of a branch pipe connecting device according to the present invention.

3 is a perspective view of the branch pipe according to the present invention.

4 is a cross-sectional view taken along the line A-A of FIG.

Fig. 5 is a sectional view taken along line B-B when a corrugated pipe is used as the main pipe in Fig. 1.

Figure 6 is a cross-sectional view for explaining the configuration of the joint pipe and branch pipe fixing means according to the present invention.

Figure 7 is a cross-sectional view for explaining the auxiliary fastener according to the present invention.

<Description of the symbols for the main parts of the drawings>

(1): branch pipe connecting device (10): branch pipe

(11) (13) (17): Watertight packing (12): Branch hole fixing means

(14): breakage prevention pad (15): branch fixing means

16: round spacer

Claims (8)

In the branch pipe connecting device for connecting the main pipe bored with the drain hole and the branch pipe connecting the main pipe from the home, etc., The joint pipe 100 is inserted into the branch pipe 3 is coupled to the upper portion, the flange portion is in close contact with the outer circumferential surface of the main pipe (2) perforated drainage hole 20 in the lower portion of the pipe (100) 101 is formed, and a plurality of guide grooves 102a are formed on the lower surface of the flange portion 101 so as to be spaced apart by a predetermined interval so that the support 102 inserted into the drain hole 20 is protruded. A plurality of fixing blocks 103 are formed to protrude from the upper surface of the flange portion 101 so as to be positioned above the guide grooves 102a, and fixed from the upper surface of the fixing block 103 to the guide grooves 102a. Branch pipe 10 through which the hole 104 passes; A watertight packing (11) interposed between the lower surface of the flange portion (101) of the branch pipe (10) and the outer circumferential surface of the main tube (2); And The fixing bolt 120 is inserted into the fixing hole 104 and the upper end of the fixing bolt 120 is formed, the fastener 121 is mounted to the lower end of the fixing bolt 120, and the screw portion 120a It consists of a fixing nut 122 is screwed to the fixing nut 122 to the fixing bolt 120, the upper surface of the fastener 121 is in close contact with the inner circumferential surface of the main pipe (2) is the branch pipe (10) Branch pipe connection device configured to include ;; branch pipe fixing means (12) for fixing to the main pipe (2). The method of claim 1, A connector 124 is formed to protrude from the lower end of the fixing bolt 120, a threaded portion 124a is formed at the lower end of the outer circumferential surface of the connector 124, and a fixing hole 121a is formed at one end of the fixing member 121. Is formed, after the connector 124 is inserted into the fixing hole 121a, the fixing nut 125 is screwed to the threaded portion 124a of the connector 124, so that the fixture 121 is detachable and the connector Branch pipe connection device, characterized in that mounted to the lower end of the fixing bolt 120 to be rotated about the (124). The method of claim 2, The fixture 121, Branching pipe connecting device is characterized in that the upper surface is formed to have the same curvature as the inner circumferential surface of the main tube (2) so that the entire inner circumferential surface and the upper surface of the main tube (2). The method of claim 3, wherein On the upper surface of the fixture 121, Branch connection device, characterized in that the damage prevention pad (14) is further attached to prevent the main tube (2) is damaged as the upper surface of the fixture (121) is in close contact with the inner peripheral surface of the main tube (2). The method of claim 1, The outer circumferential surface of the fixing bolt 120 is pressed by the upper surface of the fixing tool 121 and the fixing nut 122 to be inserted between the outer circumferential surface of the fixing bolt 120 and the fixing hole 104 to fix the fixing bolt 120 and Branch pipe connection device, characterized in that a pair of watertight packings (13) for watertight between the fixing hole (104) is fitted. The method of claim 1, Between the upper surface of the watertight packing (11) and the lower surface of the flange portion 101, a branch spacer connecting device characterized in that there is further interposed a round spacer (16) attached to the watertight packing (17). The method of claim 6, The upper surface of the round spacer 16 has the same curvature as the lower surface of the flange portion 101, the lower surface is formed to have the same curvature as the upper surface of the watertight packing (11) Device. The method of claim 7, wherein The watertight packing (11), branch pipe connecting device, characterized in that the plurality of insertion projections (112) further protruded on the lower surface.

Images