JP4994066B2 - Auxiliary member for connecting dissimilar pipes and dissimilar pipe connecting structure having the same - Google Patents

Description

  The present invention is for connecting different types of pipes used when connecting ceramic pipes or fume pipes (hereinafter simply referred to as ceramic pipes) and pipes made of synthetic resin such as vinyl chloride resin (hereinafter referred to as synthetic resin pipes). The auxiliary member and the dissimilar pipe connection structure including the same.

  For example, when an existing ceramic pipe is damaged, the ceramic pipe may be removed and a synthetic resin pipe may be installed instead. In such a case, it is necessary to connect a ceramic pipe or the like, which are different types of pipes, and a synthetic resin pipe.

Usually, a ceramic pipe etc. and a synthetic resin pipe are joined by mortar (for example, refer to patent documents 1). Specifically, when connecting a ceramic pipe or the like and a synthetic resin pipe, insert the outlet of the other pipe into the outlet of one pipe and insert it into the space between the outlet and the outlet. Fill the mortar with the crushed stone. Thereby, a ceramic pipe etc. and a synthetic resin pipe are joined via mortar.
No. 3-36629

  By the way, when connecting pipes, it is necessary to align them. However, since the connection between the ceramic pipe and the synthetic resin pipe is a connection between different kinds of pipes, it is difficult to align the cores compared to the case where the same kind of pipes are connected. Conventionally, when connecting a ceramic pipe or the like and a synthetic resin pipe, an operator has to perform centering by eye measurement, which is troublesome. Further, the accuracy of centering tends to be insufficient. In addition, if the crushed stones are not arranged carefully, the mortar may flow into the pipe during filling.

  This invention is made | formed in view of this point, The place made into the objective is to improve the workability | operativity at the time of the connection of a ceramic pipe etc. and a synthetic resin pipe | tube. Another object of the present invention is to suppress the inflow of mortar into a pipe when connecting a ceramic pipe or the like and a synthetic resin pipe.

The auxiliary member for connecting dissimilar pipes according to the present invention is configured to connect the first pipe receiving port and the first pipe made of a ceramic pipe or a fume pipe having a receiving port to the second pipe made of synthetic resin. An auxiliary member for connecting different types of pipes disposed between the second pipes, comprising: a synthetic resin pipe; and a flexible ring attached to an outer peripheral surface on one end side of the pipe; The flexible ring is attached to a distal end of the tube that is inserted into the receiving port of the first pipe, and an outer peripheral surface of the tube includes an inner peripheral surface of the receiving port of the first pipe. The mortar is filled in between .

  When connecting the first pipe and the second pipe using the auxiliary member, first, one end side of the auxiliary member is fitted into the receiving port of the first pipe. At this time, the flexible ring comes into contact with the inner peripheral surface of the receiving port of the first pipe and is elastically deformed. Here, when the center of the 1st piping and the pipe | tube of an auxiliary member has shifted | deviated, the elastic force of a flexible ring acts in the direction which eliminates the shift | offset | difference. As a result, the centering of the first pipe and the auxiliary member pipe is favorably performed. Therefore, by using the auxiliary member, it is possible to improve workability when connecting the first pipe and the second pipe. In addition, when one end side of the auxiliary member is fitted into the receiving port of the first pipe, the mortar is filled between the inner peripheral surface of the first pipe receiving port and the outer peripheral surface of the auxiliary member tube. The sex ring suppresses the flow of mortar into the tube.

  The length of the flexible ring along the axial direction of the tube may be approximately equal to the radial length of the tube of the flexible ring.

  When the thickness of the flexible ring is large as described above, a relatively large space is secured between the first pipe and the auxiliary member pipe. Therefore, a sufficient amount of mortar can be filled in the space, and the first pipe and the auxiliary member pipe can be joined well.

  The flexible ring may have a substantially circular cross-sectional shape.

  This provides a flexible ring with a relatively large thickness. In addition, a sufficient amount of mortar can be satisfactorily filled in the space between the first pipe and the auxiliary member pipe. Further, the elastic deformation amount of the flexible ring can be ensured to be relatively large while suppressing the contact area of the flexible ring with respect to the pipe and the first pipe. Therefore, the auxiliary member can be smoothly fitted into the first pipe, and workability can be further improved.

The dissimilar pipe connection structure according to the present invention comprises a first type pipe formed of a ceramic pipe or a fume pipe and having a receiving port extending radially outward on one end side, and one end side protruding into the receiving port of the first type pipe. A second type pipe made of a synthetic resin and a position inside the axial direction of the first type pipe from the tip of the first type pipe receiving port, and the receiving port of the first type pipe A flexible ring interposed between the inner peripheral surface and the outer peripheral surface on one end side of the second type pipe in contact with the inner peripheral surface and the outer peripheral surface, and at least the first type pipe A mortar filled between the flexible ring and the front end of the receiving port between the inner peripheral surface of the receiving port and the outer peripheral surface on one end side of the second type pipe. . The said flexible ring is attached to the front-end | tip of the side contact | abutted in the receptacle of the said 1st type piping of the said 2nd type piping.

  As a result, a dissimilar pipe connection structure excellent in workability in connection can be obtained. In addition, a heterogeneous pipe connection structure in which the inflow of mortar into the pipe is suppressed can be obtained.

  As described above, according to the present invention, it is possible to improve workability when connecting a ceramic pipe or the like and a synthetic resin pipe. In addition, when the ceramic pipe or the like is connected to the synthetic resin pipe, the inflow of mortar into the pipe can be suppressed.

<Embodiment 1>
《Configuration of heterogeneous pipe connection structure》
As shown in FIG. 1, the dissimilar pipe connection structure according to the present embodiment is obtained by replacing a part of the sewer pipe of the sewer pipe in which a plurality of ceramic pipes are sequentially connected with a pipe structure 10 made of synthetic resin. is there. The piping structure 10 is interposed between the first ceramic pipe 100 and the second ceramic pipe 300.

  The piping structure 10 includes an auxiliary member 20 for connecting different types of pipes, a first slide joint 40, a repair pipe 30, and a second slide joint 70. The repair pipe 30 is a member constituting most of the pipe structure 10 and is substantially replaced in place of the damaged ceramic pipe.

  As will be described in detail later, the auxiliary member 20 includes a joint pipe 21 and a flexible ring 22 attached to the outer peripheral surface of one end of the joint pipe 21 (see FIG. 2). The joint pipe 21, the first slide joint 40, the repair pipe 30, and the second slide joint 70 are all made of vinyl chloride resin. However, some or all of these materials may be other synthetic resins (for example, polypropylene).

  The auxiliary member 20 is connected to the receiving port 100a of the first ceramic pipe 100 when the sewer pipe is repaired. Moreover, the auxiliary member 20 forms the opening 23 (refer FIG. 5) for fitting the 1st slide joint 40. FIG. That is, it is difficult to directly connect the repair pipe 30 to the receiving port 100a of the first ceramic pipe 100. Therefore, by connecting the auxiliary member 20 to the receiving port 100 a of the first ceramic tube 100, the insertion port 23 for connecting the repair tube 30 using the first slide joint 40 is formed.

  As shown in FIG. 2, the joint pipe 21 of the auxiliary member 20 is a circular pipe and is a so-called short pipe that is relatively short. Although the pipe diameter (nominal diameter) of the joint pipe 21 is not particularly limited, for example, it is 150 mm, 200 mm, 250 mm, 300 mm, or the like. In the present embodiment, the length L1 of the joint pipe 21 is substantially equal to the outer diameter D1. The ratio L1 / D1 between the length L1 and the outer diameter D1 of the joint pipe 21 is not limited at all, but as the joint pipe 21, for example, a short pipe of L1 / D1 = 0.5 to 2 can be suitably used. The left end surface 24 of the joint pipe 21 is orthogonal to the outer peripheral surface of the joint pipe 21, and the right side of the joint pipe 21 is tapered.

  As described above, the flexible ring 22 is attached to the outer peripheral surface of one end side (the left end side in FIG. 2) of the joint pipe 21. In this embodiment, the material of the flexible ring 22 is foamed polyethylene. However, the material of the flexible ring 22 may be other foamed material or other material having flexibility.

  As shown in FIG. 1, when the auxiliary member 20 is connected to the receiving port 100 a of the first ceramic tube 100, the right side of the flexible ring 22 is filled with mortar 60. Therefore, it is preferable to form a space that can be filled with a sufficient amount of mortar 60 on the right side of the flexible ring 22. Therefore, it is preferable that the flexible ring 22 has a certain length in the radial direction of the joint pipe 21 (the length in the vertical direction in FIG. 2), that is, the thickness T to some extent. In the present embodiment, the thickness T of the flexible ring 22 is about 1/8 to 1/3 times the outer diameter D1 of the joint pipe 21. The thickness T is, for example, 35 mm to 55 mm. However, the thickness T of the flexible ring 22 is not particularly limited. The cross-sectional shape of the flexible ring 22 is substantially circular, and the ratio of the length along the longitudinal direction of the joint pipe 21 of the flexible ring 22 to the length in the radial direction, that is, the aspect ratio is approximately 1. Moreover, since the cross-sectional shape of the flexible ring 22 is substantially circular, unlike the rectangular shape, the side filled with the mortar 60 (the right side in FIG. 2) has a tapered shape.

  In this embodiment, the flexible ring 22 is attached to the left end of the joint pipe 21, and the left end of the flexible ring 22 and the left end of the joint pipe 21 are aligned. In other words, the flexible ring 22 is disposed at the leftmost end portion of the joint pipe 21 and is disposed at a position that does not protrude from the joint pipe 21.

  The flexible ring 22 is bonded to the joint pipe 21 (however, the adhesive is not shown in FIG. 2 and the like). But the attachment aspect of the flexible ring 22 with respect to the joint pipe | tube 21 is not necessarily limited at all.

  As shown in FIG. 1, the auxiliary member 20 is fixed to the first ceramic tube 100 by a mortar 60.

  A slot 31 is formed on the left side of the repair pipe 30, and a slot 33 is formed on the right side. Both of the differential ports 31 and 33 have a tapered tip.

  The first slide joint 40 is a joint that connects the auxiliary member 20 and the repair pipe 30. In the vicinity of the left receiving port and the right receiving port of the first slide joint 40, rubber ring receiving portions 46 and 47 projecting outward in the radial direction are formed, respectively. These rubber ring receiving portions 46 and 47 are formed in an annular shape along the inner peripheral surface of the first slide joint 40. To these rubber ring receiving portions 46 and 47, annular rubber rings 48 and 49 are fixed, respectively.

  The second slide joint 70 is a joint that connects the repair pipe 30 and the second ceramic pipe 300. The second slide joint 70 is a joint whose radius is increased in the middle in the longitudinal direction, and the right receiving port 73 of the second slide joint 70 is larger than the left receiving port 71. In the vicinity of the receiving port 71 on the left side of the second slide joint 70, a rubber ring receiving portion 76 protruding outward in the radial direction is formed. The rubber ring receiving portion 76 is formed in an annular shape along the inner peripheral surface of the second slide joint 70. An annular rubber ring 78 is fixed to the rubber ring receiving portion 76. On the base side (left side in FIG. 1) of the receiving port 73 of the second slide joint 70, there is provided a tapered portion 75 that continuously spreads outward in the radial direction toward the tip side (right side in FIG. 1). A straight portion 77 is formed on the tip side of the taper portion 75.

《Pipe construction method》
Next, the construction method of the piping structure 10, in other words, the repair method of the sewage pipe piping will be described.

(i) Exposing the ceramic pipe including the damaged portion For example, as shown in FIG. 3, when three ceramic pipes 100, 200, 300 are connected, a part Z of the central ceramic pipe 200 is damaged. Think if you are. In this case, first, excavation is performed to expose the entire ceramic pipe 200 including the damaged portion Z.

(ii) Removal of Porcelain Pipe Including Broken Part When the porcelain pipe 200 including the broken part is exposed, next, as shown in FIG. 4, all of the porcelain pipe 200 is removed. The method for removing the ceramic pipe 200 is not limited in any way. For example, a method of crushing the ceramic pipe 200 with a hammer etc. using the brittle nature of the ceramic pipe 200 can be used. In this way, by adopting a method for removing the entire ceramic pipe 200, highly workable parts such as the receiving port 100 a of the ceramic pipe 100 and the outlet 300 a of the ceramic pipe 300 are used as connecting parts to the piping structure 10. Can be used.

(iii) Joining of auxiliary member and first porcelain tube Next, as shown in FIG. 5, the left end surface 24 of the joint pipe 21 is joined to the receiving port 100 a of the first porcelain tube 100. The auxiliary member 20 is inserted until it hits the end surface 100b. At this time, since the flexible ring 22 is attached to the left end portion of the joint pipe 21, the joint pipe 21 is fitted in a state of being aligned with the first ceramic pipe 100. That is, the joint pipe 21 and the first porcelain pipe 100 are different in pipe type and greatly different in pipe diameter. However, the outer peripheral side of the flexible ring 22 is in uniform contact with the inner peripheral surface of the receiving port 100 a of the first ceramic tube 100, and the inner peripheral side of the flexible ring 22 is uniform with the outer peripheral surface of the joint tube 21. To touch. As a result, when the joint pipe 21 is inserted, if the center of the joint pipe 21 and the center of the first ceramic pipe 100 are shifted, the shifted portion of the flexible ring 22 is compressed more than the other portions. It will be. For this reason, the elastic force of the portion on the shifted side is larger than the elastic force of the other portion, and the elastic force generated by the entire flexible ring 22 acts in a direction to eliminate the shift.

  For example, if the center of the joint pipe 21 is shifted downward from the center of the first ceramic pipe 100, the lower part of the flexible ring 22 is compressed more than the other parts. Therefore, the entire flexible ring 22 generates an elastic force that pushes the joint pipe 21 upward. As a result, the joint pipe 21 and the first ceramic pipe 100 are aligned. Therefore, the operator simply holds the right side of the joint pipe 21 and inserts the joint pipe 21 into the receiving port 100a of the first ceramic pipe 100, so that the joint pipe 21 is temporarily fixed to the first ceramic pipe 100 in a state of being aligned. Will be.

  Thereafter, as shown in FIG. 5, the first ceramic pipe 100 and the joint pipe 21 are joined using the quick setting mortar 60. Specifically, the space formed between the inner peripheral surface of the receiving port 100a of the first ceramic pipe 100 and the outer peripheral surface of the joint pipe 21 is filled with the mortar 60 and waits until the mortar 60 is solidified. Since the joint pipe 21 is supported by the first ceramic pipe 100 via the flexible ring 22, the operator can hold the joint pipe 21 accurately until the mortar 60 is hardened by merely holding the right side of the joint pipe 21 lightly. Can be easily kept in the correct position. Further, when the joint pipe 21 is sufficiently light, the operator can release the holding of the joint pipe 21 before the mortar 60 is completely hardened.

(iv) Preparation of Repair Pipe Next, the repair pipe 30 having a length corresponding to the distance L between the joint pipe 21 and the second ceramic pipe 300 is prepared. A pipe having a standardized length may be used as the repair pipe 30, but the length L can be reduced by cutting a pipe having a predetermined length on the site or bonding a plurality of pipes. It is also possible to manufacture the repair pipe 30. In the present embodiment, since the repair pipe 30 is made of a vinyl chloride resin, such length adjustment by cutting or adhesion is extremely easy.

(v) Connection of slide joint to repair pipe Next, as shown in FIG. 6, the 1st slide joint 40 and the 2nd slide joint 70 are each attached to the repair pipe 30, and these are integrated. Specifically, the receiving port 43 of the first slide joint 40 is fitted into the left port 31 of the repair pipe 30, and the right port 33 of the repair pipe 30 is inserted into the left port 71 of the second slide joint 70. Fit into.

(vi) Positioning of Repair Pipe Next, as shown in FIG. 7, the repair pipe 30 integrated with the first slide joint 40 and the second slide joint 70 is placed between the joint pipe 21 and the second ceramic pipe 300. Position it. That is, the repair pipe 30 is arranged in place of the damaged ceramic pipe 200.

(vii) Connection by slide joint Next, the first slide joint 40 is slid leftward, and the joint pipe 21 and the repair pipe 30 are connected. Further, the second slide joint 70 is slid in the right direction. Here, since the tapered portion 75 is formed in the second slide joint 70, when the second slide joint 70 is slid, the tip of the outlet 300 a of the second ceramic pipe 300 slides on the tapered portion 75. The gap 300a is guided to the center side by the tapered portion 75. As a result, the second slide joint 70 and the second ceramic pipe 300 are aligned. As described above, in the present embodiment, the centering function of the tapered portion 75 makes it possible to easily align the second slide joint 70 and the second ceramic tube 300. Note that when the second slide joint 70 and the second ceramic pipe 300 are aligned, the repair pipe 30 and the second ceramic pipe 300 are also aligned. That is, according to the present embodiment, by using the second slide joint 70 having the tapered portion 75, the repair pipe 30 and the second ceramic pipe 300 can be satisfactorily connected in a state where both are aligned. it can. Thereafter, the mortar 60 is filled in the gap between the inner peripheral surface of the receiving port 73 of the second slide joint 70 and the outer peripheral surface of the outlet 300 a of the second ceramic tube 300. Thereby, the 2nd slide joint 70 and the 2nd ceramic pipe 300 are joined (refer FIG. 1).

(viii) Backfill Finally, the portion excavated in the step (i) is backfilled.

<< Effect of Embodiment 1 >>
As described above, according to the present embodiment, when the first ceramic pipe 100 and the repair pipe 30 that are different kinds of pipes are connected, the auxiliary member 20 is interposed therebetween. Therefore, the repair pipe 30 can be connected to the first ceramic pipe 100 satisfactorily.

  The joint pipe 21 of the auxiliary member 20 is made of a synthetic resin and is a different type of pipe from the first ceramic pipe 100. However, since the flexible ring 22 is attached to the outer peripheral surface on one end side of the joint pipe 21, when the joint pipe 21 is inserted into the receiving port 100 a of the first ceramic pipe 100, Even if the center of one ceramic tube 100 is displaced, the elastic force of the flexible ring 22 acts in a direction to eliminate the displacement. Therefore, centering of the joint pipe 21 and the first ceramic pipe 100 can be easily performed. Therefore, when connecting the joint pipe 21 and the first ceramic pipe 100, workability can be improved.

  Further, the flexible ring 22 contacts the outer peripheral surface of the joint pipe 21 and the inner peripheral surface of the receiving port 100a inside the receiving port 100a of the first ceramic tube 100. Therefore, when filling the mortar 60, it is possible to suppress a part of the mortar 60 from flowing into the first ceramic pipe 100 or the joint pipe 21 (hereinafter simply referred to as the pipe). In other words, since the mortar hardly flows into the pipe, the burden of the filling work can be reduced. Therefore, workability can also be improved in this respect.

  In the flexible ring 22 according to this embodiment, the length along the axial direction of the joint pipe 21 is substantially equal to the length in the radial direction, and the thickness T of the flexible ring 22 is large. Therefore, when the joint pipe 21 is inserted into the receiving port 100a of the first ceramic pipe 100, a relatively large space can be secured between the outer peripheral surface of the joint pipe 21 and the inner peripheral surface of the receiving port 100a. . Therefore, a sufficient amount of mortar 60 can be filled between the outer peripheral surface of the joint pipe 21 and the inner peripheral surface of the receiving port 100a. As a result, the joint pipe 21 and the first ceramic pipe 100 can be connected well.

  Moreover, the cross-sectional shape of the flexible ring 22 according to the present embodiment is formed in a substantially circular shape. Therefore, a relatively large amount of elastic deformation can be ensured while keeping the contact area between the inner peripheral surface of the receiving port 100a of the first ceramic tube 100 and the outer peripheral surface of the joint tube 21 small. Therefore, the joint pipe 21 can be smoothly inserted into the receiving port 100a, and the above-described centering effect can be remarkably exhibited. Further, the cross-sectional shape of the flexible ring 22 is tapered toward the mortar 60 side. Therefore, the mortar 60 can be smoothly poured into the gap between the flexible ring 22 and the receiving port 100a when the mortar 60 is filled. Therefore, the 1st ceramic pipe 100 and the joint pipe 21 can be joined favorably.

  In addition, when filling the mortar 60 in the space between the inner peripheral surface of the receiving port 100a of the first ceramic pipe 100 and the outer peripheral surface of the joint pipe 21, it is possible to place crushed stones in the space in advance. Of course. However, in this embodiment, the mortar 60 is filled without arranging crushed stones. Therefore, workability can be further improved.

<Modification>
In the present embodiment, the auxiliary member 20 is manufactured in advance in a factory or the like, and the auxiliary member 20 is transported to the construction site. However, the auxiliary member 20 can be manufactured on site. For example, at a construction site, a joint pipe 21 is manufactured by cutting a part of a synthetic resin pipe, and a flexible ring 22 is wound around the joint pipe 21 and adhered to the outer peripheral surface of the joint pipe 21. May be.

  By the way, when the joint pipe 21 is manufactured at the construction site as described above, the end face (cut surface) 24 of the joint pipe 21 may be inclined. As a result, when the joint pipe 21 is inserted into the receiving port 100a of the first ceramic pipe 100, the end surface 24 of the joint pipe 21 and the joining end surface 100b (see FIG. 5) of the receiving port 100a are not uniformly contacted, There may be a slight gap between them. However, a flexible ring 22 is attached to the outer peripheral surface of the joint pipe 21. Therefore, even if such a gap exists, the flexible ring 22 prevents the mortar 60 from flowing into the pipe.

  In the present embodiment, the flexible ring 22 is bonded to the outer peripheral surface of the joint pipe 21 in advance, and the flexible ring 22 and the joint pipe 21 are inserted into the receiving port 100a of the first ceramic pipe 100. The heterogeneous pipe connection structure 50 was formed. However, the method for forming the heterogeneous pipe connection structure 50 is not limited to the above. For example, the flexible ring 22 may be fitted in the receiving port 100a of the first ceramic pipe 100 in advance, and then the joint pipe 21 may be inserted to fill the mortar 60. Even with such a method, a heterogeneous pipe connection structure 50 similar to that of the present embodiment can be obtained.

<Embodiment 2>
As shown in FIG. 8, the second embodiment is obtained by changing the second slide joint 70 in the first embodiment. In the following description, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The flexible ring 22 is attached to the inner peripheral surface of the second slide joint 70 according to the present embodiment. Specifically, the flexible ring 22 is bonded to a portion on the taper portion 75 side on the inner peripheral surface of the straight portion 77. However, a part of the flexible ring 22 may be bonded to the inner peripheral surface of the tapered portion 75. The second slide joint 70 and the flexible ring 22 constitute an auxiliary member 70A for connecting different types of pipes.

  As shown in FIG. 9, also in this embodiment, the cross-sectional shape of the flexible ring 22 is substantially circular, and the ratio between the length along the axial direction of the second slide joint 70 and the length in the radial direction is approximately It is 1.

  According to the present embodiment, when the second slide joint 70 is slid toward the insertion port 300a of the second ceramic pipe 300, the flexible ring 22 contacts the outer peripheral surface of the insertion port 300a and compresses in the radial direction. Is done. At this time, for the same reason as in the first embodiment, the elastic force of the flexible ring 22 acts in a direction that eliminates the deviation between the center of the second slide joint 70 and the center of the second ceramic tube 300. Therefore, the second slide joint 70 and the second ceramic pipe 300 are aligned.

  As in the first embodiment, the second slide joint 70 is formed with a tapered portion 75. Therefore, when the second slide joint 70 is slid, the distal end of the insertion port 300a of the second ceramic pipe 300 slides on the tapered portion 75, and the insertion port 300a is guided to the center side by the tapered portion 75. As a result, the second slide joint 70 and the second ceramic pipe 300 are aligned.

  As described above, in the present embodiment, the centering function of the flexible ring 22 and the centering function of the tapered portion 75 make it easier to align the second slide joint 70 and the second ceramic tube 300. Can do. As in the first embodiment, when the second slide joint 70 and the second ceramic pipe 300 are aligned, the repair pipe 30 and the second ceramic pipe 300 are also aligned. According to the present embodiment, by using the second slide joint 70 to which the flexible ring 22 is attached, the repair pipe 30 and the second ceramic pipe 300 are well connected in a state where both are aligned. be able to.

  The flexible ring 22 is in contact with the outer peripheral surface of the opening 300 a of the second ceramic pipe 300 and the inner peripheral surface of the receiving port 73 of the second slide joint 70 inside the receiving port 73 of the second slide joint 70. Therefore, when the mortar 60 is filled, the flexible ring 22 can prevent a part of the mortar 60 from flowing into the pipe.

  Also in this embodiment, when the receiving port 73 of the second slide joint 70 is fitted into the outlet 300a of the second ceramic tube 300, the inner peripheral surface of the receiving port 73 of the second slide joint 70 and the second A relatively large space can be secured between the outer peripheral surface of the outlet 300a of the ceramic pipe 300. Therefore, a sufficient amount of mortar 60 can be filled, and the second slide joint 70 and the second ceramic pipe 300 can be connected well.

<Modification>
The dissimilar pipe connection structure 51 according to the embodiment is a structure in which the second slide joint 70 and the second ceramic pipe 300 are joined by the mortar 60 via the flexible ring 22. In the above embodiment, the dissimilar pipe connection structure 51 is formed by fitting the second slide joint 70 to which the flexible ring 22 is attached into the outlet 300 a of the second ceramic pipe 300. However, the different kind pipe connection structure 51 may be formed by other methods. For example, the flexible ring 22 may be attached to the outer peripheral surface of the outlet 300a of the second ceramic tube 300, and then the second slide joint 70 may be fitted into the outlet 300a to fill the mortar 60.

  Also in the present embodiment, the flexible ring 22 is previously attached to the second slide joint 70 in a factory or the like, and the second slide joint 70 integrated with the flexible ring 22 is transported to the construction site. It may be. It is also possible to bond the second slide joint 70 and the flexible ring 22 at the construction site.

  As described above, the present invention is useful for an auxiliary member for connecting different types of pipes used when connecting a ceramic pipe or a fume pipe and a pipe made of synthetic resin, and a different type pipe connecting structure including the auxiliary member. is there.

1 is a longitudinal sectional view of a piping structure according to Embodiment 1. FIG. It is a longitudinal cross-sectional view of the auxiliary member for dissimilar pipe connection. It is a figure for demonstrating the repair method of a sewer piping. It is a figure for demonstrating the repair method of a sewer piping. It is a figure for demonstrating the repair method of a sewer piping. It is a longitudinal cross-sectional view of a repair pipe, a 1st slide joint, and a 2nd slide joint. It is a figure for demonstrating the repair method of a sewer piping. It is a longitudinal cross-sectional view of the piping structure which concerns on Embodiment 2. FIG. 6 is a longitudinal sectional view of a second slide joint according to Embodiment 2. FIG.

20 Auxiliary members for connecting different types of pipes 21 Joint pipes (synthetic resin pipes, type 2 pipes)
22 Flexible ring 30 Repair pipe (second pipe)
60 mortar 70 Second slide joint (synthetic resin pipe)
70A Auxiliary member for connecting different types of pipes 73 Receiving port 100 First ceramic pipe (first pipe, first type pipe)
100a socket 300 second ceramic pipe 300a outlet

Claims (4)

When connecting a first pipe made of a ceramic pipe or a fume pipe having a receiving port and a second piping made of synthetic resin, a different kind of tube arranged between the receiving port of the first piping and the second piping An auxiliary member for connection,
A tube made of synthetic resin,
A flexible ring attached to the outer peripheral surface of one end of the tube,
The flexible ring is attached to the tip of the pipe that is inserted into the receiving port of the first pipe ,
An auxiliary member for connecting different types of pipes, wherein the outer peripheral surface of the pipe is filled with mortar between the inner peripheral surface of the receiving port of the first pipe . The auxiliary member for connecting different types of pipes according to claim 1,
A length of the flexible ring along the axial direction of the tube is an auxiliary member for connecting different types of tubes that is substantially equal to a length of the tube in the radial direction of the flexible ring. The auxiliary member for connecting different types of pipes according to claim 1,
The flexible ring is an auxiliary member for connecting different types of pipes having a substantially circular cross section. A first type pipe made of a ceramic pipe or a fume pipe and having a receiving port extending radially outward on one end side;
A second-type pipe made of synthetic resin with one end side abutted in a receiving port of the first-type pipe;
It is the position inside the axial direction of the said 1st type piping from the front-end | tip of the receiving port of the said 1st type piping, and the inner peripheral surface of the receiving port of the said 1st type piping, and the one end side of the said 2nd type piping A flexible ring interposed between the inner peripheral surface and the outer peripheral surface at a position between the inner peripheral surface and the outer peripheral surface;
A mortar filled between the flexible ring and the tip of the receiving port at least between the inner peripheral surface of the receiving port of the first type piping and the outer peripheral surface of one end side of the second type piping; With
The flexible ring is a dissimilar pipe connection structure that is attached to the tip of the second type pipe that is abutted into the receiving port of the first type pipe.

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