KR102049056B1 - Branch pipe connector for sewer pipe line - Google Patents

Abstract

The present invention relates to a branch pipe connector for a sewer pipeline, comprising: a support member including a front end diameter expanded part, and a support body forming an outer thread; a connector member provided to form an inner thread on an inner side surface of a seating projection part and to be seated and arranged on a rear end surface of the seating projection part by inserting a branch pipe for connection of a sewer pipe thereinto; a first watertight member positioned between a perforated hole of the sewer pipe and the support body of the support member and pressed at a lower part of the inner diameter of the perforated hole to perform a watertight function; a second watertight member having a hanging projection part protruding from an outer surface of a rear end part toward an outer side to be hung and arranged at an outer side of the perforated hole; a watertight shock absorbing member for the sewer pipe provided with a watertight shock absorbing unit pressed on the outer circumferential surface of the sewer pipe in contact with the perforated hole according to a coupling of the connector member with a close contact support unit protruding toward the rear side from an edge of the watertight shock absorbing unit to be integrally formed; a watertight shock absorbing member for the branch pipe having a screw coupling unit forming, on an inner wall, an inner thread for being screw-coupled to an upper end part of the support member side support body and a watertight shock absorbing unit protruding toward the outer side from the outer circumferential surface of a lower end part of the screw coupling unit to be positioned between the connector member side seating projection part and the branch pipe for connection of the sewer pipe; a connection and fixation member elastically supporting, connecting and fixing the connector member and the branch pipe; and a coupling band member fixedly coupled to both side end parts of the outer circumferential surface of the connection and fixation member to reinforce the coupling force of the connector member and the branch pipe. According to the present invention, the connector connects the sewer pipe to the branch pipe using screw-coupling to simplify work and shorten the construction period.

Description

Branch pipe connector for sewage pipe {BRANCH PIPE CONNECTOR FOR SEWER PIPE LINE}

The present invention relates to a branch pipe connector for sewage pipe, and more particularly, to connect the branch pipe to the sewer pipe of the drainage system to easily form a sewer pipe and to improve the watertightness of the connection portion of the sewer pipe and the branch pipe. It relates to branch pipe connection for sewer pipe.

In general, a sewer pipe is formed by connecting a branch pipe made of synthetic resin to a sewer pipe made of concrete pipes, through which sewage discharged from a home is collected into a sewer pipe through a branch pipe and drained to a sewage treatment plant.

Therefore, in order to connect the branch pipe to the sewer pipe to connect the perforated hole for the branch pipe to one side of the sewer pipe. However, since the hole for connecting the branch pipe is not precisely punctured so as to correspond to the diameter of the branch pipe, leakage occurs when directly connected thereto.

Thus, in order to connect the branch pipe to the sewer pipe, a connector for connecting the connection hole and the branch pipe drilled in the sewer pipe is necessary.

However, conventional connectors have a problem in that leakage occurs at the connection portion of the branch pipe and the sewer pipe. In order to improve this, several single-layer sealing members must be installed in the connector, which has a problem that the member becomes complicated and the manufacturing cost increases.

In addition, in order to fix the branch pipe to the sewer pipe using a connector, it is necessary to make a separate perforation on the sewer pipe or use a fixed steel accessory, which causes complicated construction and an increase in the construction period, and in order to increase watertightness when connecting the branch pipe. There is a problem that the sewage pipe is damaged by excessively pressurized.

In addition, the conventional connectors have a limitation that can be repaired by breaking the connector or the sewer pipe in the event of a leak in the sewer pipe or branch pipe, including water leakage after completion of construction, and recently, a connector of a fastening method for ease of repair. Are being proposed.

Republic of Korea Utility Model Publication No. 20-2013-0001141 Republic of Korea Open Utility Model Publication No. 20-2014-0001861

SUMMARY OF THE INVENTION The present invention has been made in view of solving the above-described conventional problems, and an object thereof is to provide a branch pipe connector for a sewer pipe that can increase watertightness with a simpler configuration.

It is an object of the present invention to provide a branch pipe connector for a sewer pipe for easy construction and to easily perform maintenance work after construction.

The present invention provides a branch pipe connector for a sewer pipe to increase the clamping force between the components and facilitate easy fastening, while preventing the breakage of the sewer pipe and the branch pipe through the buffer function and to support the smooth flow of sewage. There is a purpose.

In the sewer pipe connector for sewer pipe according to the present invention for achieving the above object, in the sewer pipe branch pipe connector for use to form a sewer pipe by connecting the branch pipe to the perforation of the sewer pipe in a state formed in the sewer pipe, A circular pipe inserted into the sewage perforations, the diameter of which extends toward the tip and extends in the inward direction of the perforation, extends in the inward direction of the perforation, extends in the tip diameter extension, and the rear end is located in the outward direction of the perforation. A support member including a support body on which an external thread is formed on an outer circumferential surface thereof; As a circular pipe which is screwed to the support member inserted into the drill hole of the sewer pipe and is positioned in the outer direction of the perforation, the support body side and the screw are provided on the inner side of the seating step portion with a seating step portion protruding inward from the inner wall center portion. A connector member having an internal screw thread for fastening, the connector member being provided to be seated by inserting the sewer pipe connecting branch pipe into the rear end surface of the seating step; A first watertight member interposed between the perforation of the sewer pipe and the support body of the support member, the first watertight member being crimped under the inner diameter of the perforation while being expanded by the distal end diameter extension part according to the fastening of the connector member; Interposed between the perforation of the sewer pipe and the support body of the support member is formed with the same outer diameter as the inner diameter of the perforation to be compressed, and is provided to perform a watertight function on the inner diameter of the perforation, protrudes outward from the outer end of the rear end to the outside of the perforation A second watertight member having a latching stepped portion disposed on the latch; At the edge of the watertightness buffer part and the watertightness buffer part which is interposed between the sewage pipe so as to be located at the lower side of the connector member and the lower end of the second watertight member side and is squeezed to the outer circumferential surface of the sewage pipe that is in contact with the perforations according to the fastening of the connector member A watertight buffer member for sewage pipes which protrudes in the rearward direction and is integrally formed and is in close contact with the lower circumferential surface of the lower end of the connector member, and shields the periphery of the perforation and prevents damage to the sewer pipe side by a buffer function; A screw fastening part having an internal thread on the inner wall for fastening to the upper end of the support body side support body, and protrudes outwardly from the outer peripheral surface of the lower end of the screw fastening part, between the connector member side seating step and the sewer pipe connection branch pipe. A watertight buffer member for branch pipes which prevents breakage due to a buffer function by forming a watertight buffer portion interposed therebetween; A connection fixing member for elastically supporting and connecting the connector member and the branch pipe; And a fastening band member fastened and fixed to both ends of the outer circumferential surface of the connection fixing member to strengthen the fastening force of the connector member and the branch pipe. The connector member is formed in a polygonal surface with respect to the outer circumferential surface and knurling on the polygonal surface. ), And the support member and the connector member each include a POM (acetal) resin having excellent dimensional stability, self-lubrication, and strong resistance to shock and vibration so as to increase the tightening force according to mutual screw fastening and to enable a stable fastening operation. Characterized in that consisting of.

Here, the support member and the connector member, respectively, 10 to 30 parts by weight of ABS resin for strengthening the mechanical strength to 100 parts by weight of POM (acetal) resin, 10 to 50 parts by weight of nylon plastic for cold resistance and wear resistance and moldability It may be made of a composition containing.

Here, one or more fastening guide holes are formed on the outer circumferential surface of the connector member, and the fastening towing member is induced when the connector member is screwed to the support member by inserting the fastening towing member into the fastening guide hole. By inserting the hole into the hole to facilitate the fastening work or to strengthen the fastening force, the fastening guide hole is formed to be inclined in the opposite direction to the direction in which the connector member is rotated by the fastening tow member from the fastening guide hole It can be configured to have a greater force of action for rotational induction as well as not to escape easily.

Here, the watertight buffer member for the sewer pipe is provided with a fastening belt member integrally formed extending from the outer peripheral side of the watertight buffer portion to be fastened to the sewer pipe to strengthen the fastening force of the connector, the fastening belt member having a fastening part A first rubber belt and a second rubber belt which is locked to the fastening part; The first rubber belt and the second rubber belt, respectively, synthetic rubber for retaining elastic tightening force and sewer pipe adhesion, and antioxidant to prevent the natural rubber of the synthetic rubber to be decomposed and modified to prevent Consisting of a mixed composition; The fastening part of the first belt may include an elastic piece to be configured to perform the second belt side locking fastening using the elasticity of the elastic piece.

Herein, fastening band seating grooves are formed at both ends of the outer circumferential surface of the connection fixing member; The fastening band member is a belt-type member having a fastening portion at one end, and an oxidation for preventing natural rubber from being decomposed and modified by preventing natural oxidation of the synthetic rubber and the synthetic rubber to retain elastic tightening force and sewer pipe adhesion. It consists of the composition which mixed the inhibitor; The fastening part may be configured to have an elastic piece to perform locking fastening using elasticity of the elastic piece.

Here, the inner peripheral surface of the support member forms a coating layer to induce a smooth flow of sewage and to exhibit an odor deodorizing function; The coating layer is polyethylene terephthalate, polycarbonate, polycyclohexylenedimethylene terephthalate, perfluoroalkoxy, polytetrafluoroethylene, polyvinylidene difluoride, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-fer Zeolite, ocher or silver particles may be added to the coating resin consisting of one or two or more selected from fluoroalkyl vinyl ether copolymers to be mixed.

According to the present invention, the connection between the sewer pipe and the branch pipe can be simplified because the connection between the sewer pipe and the branch pipe using a screw coupling can simplify the work, and the construction period can be shortened. Usefulness can be achieved that can increase the watertightness to.

According to the present invention, the construction is simple and performs the connection work by the fastening method, so that assembly or disassembly is possible, thereby achieving usefulness that can be easily performed after construction.

According to the present invention, it is possible to increase the fastening force between the components and facilitate easy fastening, while preventing the breakage of sewer pipes and branch pipes through the cushioning function and can provide a durable connector, ensuring water tightness and smooth sewage Usefulness to support the flow can be achieved.

1 is an external perspective view showing the installation state of the branch pipe connector for sewage pipe according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a branch pipe connector for sewage pipe in accordance with an embodiment of the present invention.
Figure 3 is a cross-sectional view showing the installation state of the branch pipe connector for sewage pipe according to an embodiment of the present invention.
Figure 4 is a detailed cross-sectional view showing the main portion installed in the branch pipe connector for sewer pipe in accordance with an embodiment of the present invention.
5 is an exemplary view showing to explain the connection fixing member and the fastening band member in the branch pipe connector for sewage pipe according to an embodiment of the present invention.
6 is a cross-sectional view showing a configuration including a fastening towing member and a coating layer as an installation state of the branch pipe connector for sewage pipe according to an embodiment of the present invention.
7 is another exemplary view showing a watertight buffer member for sewage pipe in the branch pipe connector for sewage pipe according to an embodiment of the present invention.
8 is an installation state diagram including a watertight buffer member for sewage pipe having the configuration of FIG. 7 in the branch pipe connector for sewage pipe according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings, and the detailed description will provide a better understanding of the purpose, configuration, and features thereof.

Branch pipe connector for sewage pipe according to an embodiment of the present invention is used to form a sewer pipe by connecting the branch pipe 20 to the perforated 11 of the sewer pipe 10 in a state in which the perforated pipe 11 is formed in the sewer pipe 10. As shown in FIGS. 1 to 8, the support member 100, the connector member 200, the first watertight member 300, the second watertight member 400, and the watertight buffer member 500 for the sewer pipe are provided. , Branch watertight buffer member 600, the connection fixing member 700, consisting of a configuration including a fastening band member (800).

The support member 100 is a circular tube inserted into the drilling 11 of the sewage pipe 10, the diameter of the structure is expanded toward the tip and the tip diameter expansion portion 110 located in the inner direction of the drilling 11 And a support body 120 extending to the front end diameter extending part 110 and having a rear end located at an outer direction of the perforation 11 and having an external thread formed on an outer circumferential surface thereof.

The connector member 200 is a circular tubular body located in the outer direction of the screw fastening and the perforation 11 is inserted into the support member 100 is inserted into the drilling 11 of the sewage pipe 10, the inner wall from the central portion toward the inside It has a mounting stepped part 210 which protrudes, but an internal thread is formed on the inner side of the mounting stepped part 210 for screwing with the support main body 120 side, and the sewer pipe is connected to the rear end surface of the mounting stepped part 210. It is provided to insert the seating tube 20 for placement.

In this case, the connector member 200 may be formed in a polygonal shape, such as a hexagon with respect to the outer peripheral surface and can be provided to perform an easy fastening operation by knurling processing on the polygonal surface.

In addition, as shown in FIG. 6, the connector member 200 has one or more fastening guide holes 220 formed on the outer circumferential surface thereof, and the fastening towing member 900 is inserted into the fastening guide hole 220 for use. When the connector member 200 is screwed to the support member 100, the coupling tow member 900 may be inserted into the coupling guide hole 220 to induce rotational force, thereby facilitating the fastening operation or enhancing the tightening force. It can be configured to be.

At this time, the fastening induction hole 220 is formed to be inclined in the opposite direction with respect to the direction in which the connector member 200 rotates so that the fastening towing member 900 is not easily separated from the fastening induction hole 220 and rotating induction. Can be configured to have a greater force of action for the crazy, it will be more useful when the diameter of the branch pipe 20 is large.

The support member 100 and the connector member 200 are components that allow the connector to be fixedly mounted on the sewer pipe 10 by having a fastening force due to the screw fastening therebetween, and increase the fastening force due to the fastening between the screws. It is desirable to have a composition including POM (acetal) resin that has excellent dimensional stability, self-lubrication, and strong shock and vibration to enable a stable fastening operation.

That is, the support member 100 and the connector member 200 are based on 100 parts by weight of POM (acetal) resin for each of the above-mentioned functions 10 to 30 parts by weight of ABS resin, to strengthen the mechanical strength, cold resistance It can be provided by injection molding into a composition comprising 10 to 50 parts by weight of nylon plastic for wear resistance and moldability.

Here, in addition to the above-described function, the POM resin is hard and does not change its shape even when pressure is applied, and thus has high tensile strength and bending strength, excellent abrasion resistance, excellent heat resistance, as well as excellent chemical resistance and nonabsorbability. Can be exercised.

Here, the ABS resin can exhibit excellent impact resistance, chemical resistance, weather resistance and excellent moldability.

Here, the nylon plastic has excellent mechanical and chemical properties and is strong, and the material itself may have a lubricity to perform a smooth fastening operation.

The first watertight member 300 is a ring-shaped body which is interposed between the perforation 11 of the sewer pipe 10 and the support body 120 of the support member 100, the support member according to the fastening of the connector member 200 While extending by the (100) side tip diameter expansion unit 110 is pressed to the inner diameter lower portion of the perforation 11 is provided to perform a watertight function.

The second watertight member 400 is interposed between the perforation 11 of the sewage pipe 10 and the support main body 120 of the support member 100 to be compressed to be the same as the inner diameter of the perforation 11 of the sewage pipe 10 side. As a ring-shaped structure formed with an outer diameter, provided with a watertight function in the upper portion of the inner diameter of the perforation 11, protruding outwardly from the outer end of the rear end and the engaging step portion 410 is disposed on the outer surface of the perforation 11 is Is formed.

The first watertight member 300 and the second watertight member 400 may be made of a high elastic rubber material, such as EPDM, respectively, and the high elasticity when fastening by screwing the support member 100 and the connector member 200. The first watertight member 300 and the second watertight member 400 are expanded while the diameter is respectively expanded to completely seal between the perforations 11 and the support member 100 of the sewer pipe (10).

The sewage pipe watertight buffer member 500 is a ring-shaped body interposed between the sewer pipe 10 so as to be located on the lower side of the connector member 200 and the lower end of the second watertight member 400 side 410, In accordance with the fastening of the connector member 200 is formed integrally protruding from the edge of the water-tight buffer 510 and the water-tight buffer 510 to be pressed against the outer peripheral surface of the sewer pipe 10 in contact with the perforation (11). A close support portion 520 is provided that is in close contact with the outer circumferential surface of the lower end of the connector member 200.

The watertight buffer member 500 for the sewer pipe serves to prevent damage to the sewer pipe 10 side by a cushioning function as well as shielding the periphery of the perforation 11 on the sewer pipe 10 side.

At this time, as shown in Figure 7 and 8, the watertight buffer member 500 for the sewage pipe, the sewer pipe 10 is provided with a fastening belt member 530 is formed integrally extending from the outer peripheral side of the watertight buffer 510. ) Can be configured to enhance the tightening force of the connector.

Here, the fastening belt member 530 includes a first rubber belt 531 having a fastening part 531a and a second rubber belt 532 which is fastened to the fastening part 531a.

Here, the first rubber belt 531 and the second rubber belt 532 is a synthetic rubber for retaining the elastic tightening force and the sewer pipe adhesion, respectively, and prevents natural oxidation of the synthetic rubber to decompose and modify the synthetic rubber It may be made of a mixture of antioxidants to prevent them from becoming.

The synthetic rubber may be EPDM rubber of high elasticity, and the antioxidant may be triphenyl phosphite, Tetrakis (methylene (3.5-di-t-butyl-4-hydroxyhydrocinnamate)) methane, Diphenyl isodecyl phosphate, n-Octadecyl- At least one of 3- (4-hydroxy-3,5-di-t-butyl phenyl) propionate may be selected and used.

Here, the fastening portion 531a of the first rubber belt 531 is the second rubber belt 532 by using the elasticity of the elastic piece through the configuration having an elastic piece B in the tunnel-type fastening body (A). It may be provided to perform the side lock fastening.

The elastic piece (B) may be provided in a bent or coiled structure so that the lower elastic force acts in the form that the upper end is fixed in the fastening body (A).

The watertight buffer member 600 for the branch pipe is a screw connection portion 610 having an internal thread on the inner wall for screwing to the upper end of the support body 100 side support body 120, and the screw connection portion 610 Protruding outward from the outer peripheral surface of the lower end of the connector member 200 is provided with a circular structure integrally forming the watertight buffer 620 interposed between the seating step 210 and the sewer pipe connection branch pipe 20 do.

The watertight buffer member 600 for the branch pipe serves to prevent breakage due to the buffer function as well as the watertight function of the branch pipe 20 side.

The connection fixing member 700 is provided to elastically support and connect the connector member 200 and the branch pipe 20.

The connection fixing member 700 may be made of a high elastic rubber such as EPDM.

In this case, as shown in FIG. 5, the connection fixing member 700 may be formed at both side ends of the outer circumferential surface to form a fastening band seating groove 710, and thereby elastically by seating the fastening band member 800. Strengthen your support.

The fastening band member 800 is fastened to both ends of the outer circumferential surface of the connection fixing member 700 and is provided to reinforce the fastening force of the connector member 200 and the branch pipe 20.

Here, the fastening band member 800 is configured to have a fastening part 820 at one end of the rubber band 810, so that the other end of the rubber band can be locked by fastening to the fastening part 820. It is provided.

Here, the rubber band may be made of a mixture of synthetic rubber for retaining elastic tightening force and sewer pipe adhesion, and antioxidant for preventing natural rubber from being decomposed and modified by preventing natural oxidation of the synthetic rubber. have.

The synthetic rubber may be EPDM rubber of high elasticity, and the antioxidant may be triphenyl phosphite, Tetrakis (methylene (3.5-di-t-butyl-4-hydroxyhydrocinnamate)) methane, Diphenyl isodecyl phosphate, n-Octadecyl- At least one of 3- (4-hydroxy-3,5-di-t-butyl phenyl) propionate may be selected and used.

Here, the fastening portion 820 of the rubber band 810 is provided with an elastic piece 822 in the tunnel-type fastening body 821 to lock the rubber band 810 side lock using the elasticity of the elastic piece. It can be provided to perform.

The elastic piece 822 may be provided in a bent or coiled structure in which the lower elastic force acts in a form in which the upper end is fixed in the fastening body 821.

In addition, the support member 100 may form a coating layer 130 on the inner circumferential surface thereof to induce a smooth flow of sewage flowing from the branch pipe 20 into the sewer pipe 10 and to exhibit an odor deodorizing function.

The coating layer 130 is polyethylene terephthalate, polycarbonate, polycyclohexylenedimethylene terephthalate, perfluoroalkoxy, polytetra, which is a material having excellent surface resistance so that sludge and the like having sewage do not adhere to the inner circumferential surface of the coating layer so as to slide well. Zeolite, ocher, or silver in a coating resin composed of one or two or more selected from fluoroethylene, polyvinylidene difluoride, tetrafluoroethylene-hexafluoropropylene copolymer, and tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer Particles can be added to form a mixed composition.

In this case, the coating layer 130 further comprises one selected from an acrylic acid monomer containing a carboxylic acid hydrophilic group, ethyl cellulose having a hydroxy hydrophilic group, a polyalkyl silicate having a structure substituted with an alkyl group, a methyl group or an ethyl group in the main chain and side chains. It can also be comprised so that antifouling property can be improved by adding.

Referring to the construction method using the branch pipe connector for sewage pipe according to the present invention having the above-described configuration as follows.

First, a perforation 11 is formed in the sewer pipe 10.

The first watertight member 300 and the second watertight member 400 are sequentially inserted into the support member 100 in the state where the first watertight member 300 and the second watertight member 400 are inserted into the support member 100, and the rear end of the support member 100 is disposed outside the perforated 11. The exposure is arranged by positioning in the direction.

At this time, the support member 100 is inserted into the perforation 11 of the sewage pipe 10 in a state in which the watertight buffer member 500 for sewage pipe is placed in close contact with the outer peripheral surface thereof.

After positioning the connector member 200 in the support body 120 side support body 120 exposed in the outward direction of the perforation 11, it is coupled by screwing.

At this time, the connector member 200 is screwed to the support member 100 by using the inner thread of the seating step 210.

Here, by using the polygonal surface of the connector member 200 or by rotating the connector member 200 in a state in which the fastening guide member 900 is inserted into the fastening guide hole 220, the support member 100 and the screw coupling can do.

When screwing the connector member 200 to the support member 100 side, one end of the connector member 200 is fastened toward the sewage pipe 10 and pressed, and the tip member diameter expansion portion 110 on the support member 100 side 110. ) Is pushed back, and the diameter of the first watertight member 300 and the second watertight member 400 interposed between the inner surface of the connector member 200 and the outer surface of the support member 100 is compressed. To completely seal the perforations 11 of the sewer pipe 10 and between the inner surface of the connector member 200 and the outer surface of the support member 100.

At this time, the watertight cushioning member 500 for sewage pipes performs a watertight function between the outer circumferential surface of the sewer pipe 10 and the connector member 200, and also performs a shock absorbing function.

After the connector member 200 is completely screwed and fixed to the support member 100, the watertightness buffering member 600 for the branch pipe is screwed to the rear end of the support body 120 on the support member 100, but the watertight buffering is performed. The part 620 is disposed on the rear end surface of the seating step portion 210 of the connector member 200.

Subsequently, a branch pipe 20 is inserted between the connector member 200 and the watertight buffer member 600 for the branch pipe in a state where the connection fixing member 700 is inserted into the rear end of the connector member 200. To be supported by the support body 120 and the watertight buffer member 600 and the connector member 200 for the branch pipe.

Then, the connector member 200 and the branch pipe 20 are simultaneously wrapped and supported by the connection fixing member 700, and the mounting band members 800 are disposed on the outer surfaces of both ends of the connection fixing member 700, respectively. After the fastening through the binding to the branch pipe 20 is installed so as to form a watertight state by a completely connected and sealed structure to the sewer pipe 10 side.

By simply rotating the connector member 200 as described above, the branch pipe 20 can be stably connected and fixed to the sewer pipe 10, and the watertight state of the connection portion between the sewer pipe 10 and the branch pipe 20 can be maintained. It can be easily installed by simple fastening method, which can shorten the construction period.

On the contrary, even when dismantling the connector for maintenance work or replacement, the connector member 200 may be rotated in the opposite direction to release the fixing force, thereby easily releasing the connection state of the branch pipe 20.

In the present invention, by providing a coating layer 130 on the inner circumferential surface of the support member 100 to induce a smooth flow while the sludge, etc. do not stick to the sewage flowing into the sewer pipe 10 from the branch pipe 20 and In addition, it can provide the advantage of exhibiting an odor deodorizing function.

The embodiments described above are merely illustrative of the preferred embodiments of the present invention and are not limited to these embodiments, and various modifications and variations are made by those skilled in the art within the spirit and scope of the present invention. This may be done and it will belong to the technical scope of the present invention.

10: sewer pipe 20: branch pipe
100: support member 110: tip diameter expansion portion
120: support body 200: connector member
210: seating step 300: first watertight member
400: second watertight member 500: watertight buffer member for sewer pipes
600: watertight buffer member for branch pipe 700: connection fixing member
800: fastening band member 900: fastening towing member

Claims (6)

In the sewer pipe connection branch for use in forming a sewer pipe by connecting the branch pipe to the perforation of the sewer pipe in the state of forming the sewer pipe,
A circular pipe inserted into the sewage perforations, the diameter of which extends toward the tip and extends in the inward direction of the perforation, extends in the inward direction of the perforation, extends in the tip diameter extension, and the rear end is located in the outward direction of the perforation. A support member including a support body on which an external thread is formed on an outer circumferential surface thereof;
A circular tube positioned in the outer direction of the screw fastening and drilling to the support member inserted into the drilling of the sewer pipe, having a seating step protruding inward from the inner wall center portion, the support body side and the screw on the inner side of the seating step A connector member having an internal screw thread for fastening, the connector member being provided to be seated by inserting the sewer pipe connecting branch pipe into the rear end surface of the seating step;
A first watertight member interposed between the perforation of the sewer pipe and the support body of the support member, the first watertight member being crimped under the inner diameter of the perforation while being expanded by the distal end diameter extension part according to the fastening of the connector member;
Interposed between the perforation of the sewer pipe and the support body of the support member is formed with the same outer diameter as the inner diameter of the perforation to be compressed, and is provided to perform a watertight function on the inner diameter of the perforation, protrudes outward from the outer end of the rear end to the outside of the perforation A second watertight member having a latching stepped portion disposed on the latch;
At the edge of the watertightness buffer part and the watertightness buffer part which is interposed between the sewage pipe so as to be located at the lower side of the connector member and the lower end of the second watertight member side and is pressed against the outer circumferential surface of the sewage pipe which is in contact with the perforations according to the fastening of the connector member. A watertight buffer member for sewage pipes which protrudes in the rearward direction and is integrally formed and is in close contact with the lower circumferential surface of the lower end of the connector member, and shields the periphery of the perforation and prevents damage to the sewer pipe side by a buffer function;
A screw fastening part having an internal thread on the inner wall for fastening to the upper end of the support body side support body, and protrudes outwardly from the outer peripheral surface of the lower end of the screw fastening part, between the connector member side seating step and the sewer pipe connection branch pipe. A watertight buffer member for branch pipes that prevents breakage due to a buffer function by forming a watertight buffer portion interposed therebetween;
A connection fixing member for elastically supporting and connecting the connector member and the branch pipe;
A fastening band member fastened to both ends of the outer circumferential surface of the connection fixing member to strengthen the fastening force between the connector member and the branch pipe; Including;
The connector member is formed into a polygonal surface with respect to the outer circumferential surface and knurled on the polygonal surface,
The support member and the connector member are each made of a composition comprising a POM (acetal) resin having excellent dimensional stability, having self-lubrication and strong shock and vibration to increase the tightening force according to the mutual screw fastening and to enable a stable fastening operation Branch pipe connections for sewer pipes. The method of claim 1,
The support member and the connector member, respectively,
Powder for sewer pipes comprising a composition comprising 10-30 parts by weight of ABS resin for strengthening the mechanical strength to 100 parts by weight of POM (acetal) resin, 10-50 parts by weight of nylon plastic for cold resistance and wear resistance and moldability Tracheal end connections. The method of claim 1,
One or more fastening guide holes are formed on the outer circumferential surface of the connector member, and the fastening towing member is inserted into the fastening guide hole so that the fastening towing member can be inserted into the fastening guide hole when the connector member is screwed to the support member. By inducing rotational force to facilitate the fastening work or to strengthen the tightening force,
The fastening guide hole is formed to be inclined in the opposite direction to the direction in which the connector member rotates so that the fastening tow member does not easily escape from the fastening guide hole, and is configured to exert a greater force for the rotational induction. Branch pipe connections for sewer pipes. The method of claim 1,
The watertight shock absorbing member for the sewer pipe is provided with a fastening belt member integrally formed extending from one side of the outer periphery of the watertight shock absorber to be fastened to the sewer pipe to enhance the fastening force of the connector,
The fastening belt member includes a first rubber belt having a fastening part and a second rubber belt which is fastened to the fastening part;
The first rubber belt and the second rubber belt, respectively, synthetic rubber for retaining elastic tightening force and sewer pipe adhesion, and antioxidant to prevent the natural rubber of the synthetic rubber to be decomposed and modified to prevent Consisting of a mixed composition;
The fastening portion of the first rubber belt is provided with an elastic piece branch connector for sewer pipes characterized in that configured to perform the second belt-side lock fastening using the elasticity of the elastic piece. The method of claim 1,
A fastening band seating groove is formed at both ends of the outer circumferential surface of the connection fixing member;
The fastening band member is a belt-type member having a fastening portion at one end, and an oxidation for preventing natural rubber from being decomposed and modified by preventing natural oxidation of the synthetic rubber and the synthetic rubber to retain elastic tightening force and sewer pipe adhesion. It consists of the composition which mixed the inhibitor;
The fastening part is provided with an elastic piece branch connector for sewer pipes characterized in that configured to perform the locking fastening using the elasticity of the elastic piece. The method of claim 1,
An inner circumferential surface of the support member forms a coating layer to induce a smooth flow of sewage and to exhibit an odor deodorizing function;
The coating layer is polyethylene terephthalate, polycarbonate, polycyclohexylenedimethylene terephthalate, perfluoroalkoxy, polytetrafluoroethylene, polyvinylidene difluoride, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-fer A branch pipe connector for sewer pipes comprising a composition in which a zeolite, ocher or silver particles are added and mixed with a coating resin consisting of one or two or more selected from fluoroalkyl vinyl ether copolymers.

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