JP2023149880A - Joint - Google Patents

Abstract

To provide a joint that prevents water from entering or leaking between a joint body and a sound insulation cover.SOLUTION: A joint 100 according to an aspect 1 of the present invention comprises: a joint body 11 comprising an upper opening part 11A to which a standpipe provided above is connected, a lateral opening part 11B to which a lateral pipe provided on a side is connected, and a lower opening part 11C to which a lower connecting pipe 30 provided below is connected; and a sound insulating cover 40 for covering the periphery of at least one of the upper opening part 11A, the lateral opening part 11B, and the lower opening part 11C, wherein a water stop member is provided between an outer surface of the joint body 11 and the sound insulation cover 40.SELECTED DRAWING: Figure 2

Description

The present invention relates to a joint.

Conventionally, a sound insulation structure for a collector pipe joint as shown in Patent Document 1 below has been disclosed.

Patent No. 5771514

Sometimes joints with sound insulation covers are placed in the through holes of the floor slab. During construction of a building, rainwater may splash from above near the through-hole in the floor slab where the joint is placed. The rainwater may enter between the joint body and the sound insulation cover. Then, there is a problem that the rainwater flows down between the joint body and the sound insulation cover and leaks below the floor slab.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a joint that prevents water from entering or leaking between the joint body and the sound insulation cover.

In order to solve the above problems, the present invention proposes the following means.
<1> The joint according to aspect 1 of the present invention has an upper opening to which a standpipe provided above is connected, a lateral opening to which a horizontal pipe provided to the side is connected, and a lower connection provided below. a lower opening to which a pipe is connected; a sound insulating cover that covers at least one of the upper opening, the lateral opening, and the lower opening; A water stop member is provided between the sound insulating cover and the sound insulating cover.

According to this invention, the water stop member is provided between the outer surface of the joint body and the sound insulation cover. This can prevent water on the outside of the joint from entering between the joint body and the sound insulation cover. Further, even if water were to enter between the joint body and the sound insulation cover, it is possible to prevent the water from leaking to the outside of the joint from between the joint body and the sound insulation cover. Therefore, with the joint disposed in the through hole of the slab, water can be prevented from leaking from above to below the slab.

<2> The joint according to aspect 2 of the present invention has an upper opening to which a standpipe provided above is connected, a lateral opening to which a horizontal pipe provided to the side is connected, and a lower connection provided below. a joint body comprising a lower opening to which a pipe is connected; a standpipe socket member disposed between the standpipe and the upper opening; and between the horizontal pipe and the horizontal opening. a horizontal pipe socket member disposed, and a sound insulating cover that covers at least one of the standpipe socket member and the horizontal pipe socket member, the standpipe socket member or the horizontal pipe socket. A water stop member is provided between the mouth member and the sound insulation cover.

According to this invention, the water stop member is provided between the standpipe socket member or the horizontal pipe socket member and the sound insulation cover. Thereby, it is possible to prevent water from entering between the sound insulation cover and the joint body through the space between the stand pipe socket member or the horizontal pipe socket member and the sound insulation cover. Therefore, with the joint disposed in the through hole of the slab, water can be prevented from leaking from above to below the slab.

<3> The joint according to aspect 3 of the present invention is the joint according to aspect 2, in which the standpipe socket member includes at least a standpipe bush into which the standpipe is inserted, and the horizontal pipe socket member includes: It includes at least a horizontal pipe bush into which the horizontal pipe is inserted, and the water stop member is provided between the outer surface of the standpipe bush or the horizontal pipe bush and the sound insulation cover.

According to this invention, the water stop member is provided between the outer surface of the standpipe bush or the horizontal pipe bush and the sound insulation cover. This can prevent water from entering between the sound insulation cover and the joint body via the space between the stand pipe bush or the horizontal pipe bush and the sound insulation cover.

<4> The joint according to aspect 4 of the present invention is the joint according to aspect 2, in which the standpipe socket member is connected to a standpipe bush into which the standpipe is inserted, and between the standpipe bush and the standpipe. a standpipe rubber ring that fills a gap between the standpipe rubber ring and a standpipe rubber ring suppressing member that prevents the standpipe rubber ring from falling off from the standpipe bush; A horizontal pipe bush to be inserted, a horizontal pipe rubber ring that fills a gap between the horizontal pipe bush and the horizontal pipe, and a horizontal pipe rubber ring retainer that prevents the horizontal pipe rubber ring from falling off from the horizontal pipe bush. The water stop member is provided between the vertical pipe rubber ring suppressing member or the horizontal pipe rubber ring suppressing member and the sound insulation cover.

According to this invention, the water stop member is provided between the vertical pipe rubber ring suppressing member or the horizontal pipe rubber ring suppressing member and the sound insulation cover. Thereby, it is possible to prevent water from entering between the sound insulation cover and the joint body through the space between the vertical pipe rubber ring restraining member or the horizontal pipe rubber ring restraining member and the sound insulation cover.

<5> The joint according to Aspect 5 of the present invention is the joint according to Aspect 1 or Aspect 2, wherein the sound insulation cover includes an upper sound insulation cover that covers at least the joint body, and a lower sound insulation cover that covers at least the lower connecting pipe. , and a water stop member is provided between the upper sound insulation cover and the lower sound insulation cover.

According to this invention, the water stop member is provided between the upper sound insulation cover and the lower sound insulation cover. Thereby, it is possible to prevent water from entering between the sound insulation cover and the joint body through the space between the upper sound insulation cover and the lower sound insulation cover.

<6> The joint according to Aspect 6 of the present invention is the joint according to Aspect 1 or Aspect 2, wherein the sound insulation cover includes an upper sound insulation cover that covers at least the joint body, and the upper sound insulation cover includes at least two members. and has a dividing surface in a direction perpendicular to the axial direction of the standpipe or along the axial direction of the standpipe.

According to this invention, the upper sound insulating cover is composed of at least two members and has a dividing surface in a direction perpendicular to the axial direction of the standpipe or along the axial direction of the standpipe. Thereby, by combining the two members at the dividing plane, the joint main body can be covered with the upper sound insulating cover. Therefore, for example, even if the upper sound insulating cover does not have flexibility, it can be easily placed around the joint body. By using the upper sound insulating cover that does not have flexibility, it is possible to significantly prevent water from entering between the sound insulating cover and the joint body by the water stop member.

According to the present invention, it is possible to provide a joint that prevents water from entering or leaking between the joint body and the sound insulation cover.

It is an example of installation of the joint concerning the present invention. FIG. 3 is a sectional view of a joint according to the present invention. This is a first example of a dividing surface of the upper sound insulating cover. This is a second example of the dividing surface of the upper sound insulating cover. This is a first example of the relationship between the upper sound insulating cover and the joint body. This is a second example of the relationship between the upper sound insulating cover and the joint body. This is a first example of the relationship between the upper sound insulating cover and the standpipe socket member. This is a second example of the relationship between the upper sound insulation cover and the standpipe socket member. This is a third example of the relationship between the upper sound insulating cover and the standpipe socket member. This is a fourth example of the relationship between the upper sound insulation cover and the standpipe socket member. This is a first example of the relationship between the upper sound insulation cover and the horizontal pipe socket member. This is a second example of the relationship between the upper sound insulating cover and the horizontal pipe socket member. This is a third example of the relationship between the upper sound insulating cover and the horizontal pipe socket member. This is a first example of the relationship between the upper sound insulation cover and the lower sound insulation cover. This is a second example of the relationship between the upper sound insulation cover and the lower sound insulation cover. This is a modification of the upper sound insulation cover.

Hereinafter, a joint 100 according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a joint 100 according to this embodiment is arranged, for example, in a through hole H provided in a floor slab F of a building. The joint body 11 is, for example, a so-called collective joint. The joint 100 may be a so-called reduction joint. The floor slab F is, for example, a stepped slab. During construction of a building, water W may accumulate near the through-hole H of the floor slab F due to rain or the like. This water W may enter the inside of the joint 100 and leak out under the floor slab F. The joint 100 according to this embodiment has the following configuration to prevent this.

As shown in FIG. 2, the joint 100 includes a gathering portion 10, an intermediate pipe 20, a lower connecting pipe 30, and a sound insulating cover 40. The riser pipe (hereinafter referred to as riser pipe T1) and the horizontal pipe Y located above are connected to the gathering part 10. The waste water that has flowed into the collecting section 10 moves to the lower connecting pipe 30, and then to the stand pipe located below (hereinafter referred to as the down stand pipe T2) connected to the lower connecting pipe 30.
The gathering part 10 includes a joint body 11, a standpipe socket member 12, and a horizontal pipe socket member 13.

The joint main body 11 is located at the center of each component included in the gathering part 10. The joint body 11 has an upper opening 11A to which the riser pipe T1 is connected, a lateral opening 11B to which the horizontal pipe Y provided on the side is connected, and a lower opening 11A to which the lower connecting pipe 30 provided below is connected. An opening 11C is provided. In this embodiment, a vertical pipe socket member 12 is provided at the upper opening 11A, and a horizontal pipe socket member 13 is provided at the horizontal opening 11B. Further, a drift plate 11D is connected to the inside of the joint body 11, and a lower connecting pipe 30 is connected to the lower part of the joint body 11 via an intermediate pipe 20.

The drift plate 11D is a protruding portion integrally formed inside the joint body 11. Here, when a large amount of wastewater flows into the joint body 11, the flow rate of the wastewater flowing through the joint 100 and the pipe increases, and as a result, the inside of the pipe may become under negative pressure. On the other hand, when the waste water flowing into the joint main body 11 from the riser pipe T1 comes into contact with the deflection plate 11D, the waste water flowing inside the joint 100 is deflected. This facilitates ventilation within the joint 100 and the riser pipe T1, and serves to reduce pressure fluctuations within the joint 100.
The number of drift plates 11D provided in the joint body 11 can be arbitrarily selected. For example, they may be provided at only one location, or a plurality of them may be provided at intervals on the inner circumferential surface of the joint body 11. Further, the drift plate 11D may be provided inside a standpipe bush 12A of the standpipe socket member 12, which will be described later.

The intermediate pipe 20 connects the joint body 11 and the lower connecting pipe 30. In this embodiment, adhesive is suitably used to attach the joint body 11, intermediate pipe 20, and lower connecting pipe 30. The intermediate tube 20 may have a single layer structure made entirely of a single resin composition, or may have a multilayer structure made of a plurality of layers. When the intermediate tube 20 has a single-layer structure, it may be formed from a resin composition containing a thermally expandable material. When the intermediate tube 20 has a multilayer structure, any layer may be formed from a resin composition containing a thermally expandable material. For example, the intermediate tube 20 may have a three-layer structure consisting of a surface layer, an intermediate layer, and an inner layer. In this case, the intermediate layer may be formed from a resin composition containing a thermally expandable material. By including the thermal expansion material, the joint 100 can be provided with fire resistance that prevents the spread of fire in the event of a fire.

Here, injection molding using polyvinyl chloride resin is preferably used for molding the joint body 11. Note that the joint body 11 may be transparent. In this case, the state of connection with the standpipe socket member 12 and the horizontal pipe socket member 13 can be easily confirmed.
The inner diameter of the intermediate tube 20 is preferably the same as or larger than the inner diameter of the upper end of the lower connecting tube 30 (described later). Further, the outer diameter of the intermediate tube 20 is preferably the same as the inner diameter of the lower opening 11C and the upper connecting portion 32 of the lower connecting tube 30.

The standpipe socket member 12 is arranged at the upper opening 11A. In this embodiment, the standpipe socket member 12 includes a standpipe bush 12A, a standpipe rubber ring 12B, and a standpipe rubber ring restraining member 12C.
The standpipe bush 12A is a cylindrical member that connects the standpipe socket member 12 and the joint body 11. For example, polyvinyl chloride resin is suitably used for the standpipe bush 12A. For example, adhesion is preferably used to attach the standpipe socket member 12 and the joint body 11. Further, a standpipe rubber ring 12B is provided on the inner peripheral surface of the standpipe bush 12A.

The standpipe rubber ring 12B is an annular component that is provided on the inner peripheral surface of the standpipe bush 12A and is in direct contact with the standpipe connected to the standpipe receiving member 12. This eliminates the gap between the standpipe T1 connected to the standpipe receptacle member 12 and serves to prevent drainage from leaking. For the standpipe rubber ring 12B, a rubber material commonly used in drainage equipment, such as ethylene-propylene-diene rubber (EPDM), is preferably used.

The standpipe rubber ring suppressing member 12C is an annular member provided so as to cover the ends of the standpipe bush 12A and the standpipe rubber ring 12B. This serves to prevent the standpipe rubber ring 12B from falling off from the standpipe bush 12A. For example, polyvinyl chloride resin is suitably used for the standpipe rubber ring restraining member 12C.

The connection between the standpipe socket member 12 and the standpipe T1 is performed by inserting the lower end of the standpipe T1 into the standpipe bush 12A. For this reason, it is preferable that the inner diameter of the standpipe rubber ring 12B is smaller than the outer diameter of the standpipe T1. As a result, the standpipe T1 is tightened by the elastic force of the standpipe rubber ring 12B generated when the standpipe T1 is inserted, and the standpipe socket member 12 and the standpipe T1 are fixed.
Alternatively, the inserted standpipe T1 and standpipe socket member 12 may be fixed by adhesive. In this case, the standpipe rubber ring 12B may not be provided.

Any method can be used to confirm the amount of insertion of the riser pipe T1 into the riser pipe receptacle member 12. For example, there is a method of marking the standpipe T1 to indicate a prescribed insertion distance and visually observing the position of the marking at the time of insertion.
Alternatively, by making each component of the standpipe socket member 12 transparent, the insertion distance of the standpipe T1 inside the standpipe socket member 12 may be visually confirmed. In this case, the insertion allowance can be confirmed more easily.

The horizontal pipe socket member 13 is arranged at the horizontal opening 11B. The number of horizontal pipe socket members 13 provided in the joint 100 can be arbitrarily set according to the conditions of the construction site, the size of the joint 100, and the like.
In this embodiment, the horizontal pipe socket member 13 includes a horizontal pipe bush 13A, a horizontal pipe rubber ring 13B, and a horizontal pipe rubber ring suppressing member 13C.
Note that the horizontal pipe socket member 13 may be provided with a stopper that restricts insertion of the horizontal pipe Y. At this time, the stopper is provided so as to be located inside or outside the gathering portion 10. If the stopper is located outside the gathering portion 10 and the horizontal tube receiving member 13 is transparent, insertion of the horizontal tube Y can be easily confirmed from the outside. Furthermore, when the stopper is located inside the gathering portion 10, the horizontal pipe Y can be made longer, making it easier to create an appropriate drainage gradient.

The horizontal pipe bush 13A is a cylindrical member that connects the horizontal pipe socket member 13 and the joint body 11. For example, polyvinyl chloride resin is suitably used for the horizontal pipe bush 13A. For example, adhesion is preferably used to attach the horizontal pipe socket member 13 and the joint body 11. Moreover, a horizontal tube rubber ring 13B is provided on the inner peripheral surface of the horizontal tube bush 13A.

The horizontal tube rubber ring 13B is an annular component that is provided on the inner peripheral surface of the horizontal tube bush 13A and is in direct contact with the horizontal tube Y connected to the horizontal tube socket member 13. This eliminates the gap with the horizontal pipe Y connected to the horizontal pipe receiving member 13, and has the role of preventing drainage from leaking. For the horizontal tube rubber ring 13B, a rubber material commonly used in drainage equipment, such as ethylene-propylene-diene rubber (EPDM), is preferably used.

The horizontal tube rubber ring suppressing member 13C is an annular member provided so as to cover the ends of the horizontal tube bush 13A and the horizontal tube rubber ring 13B. This serves to prevent the horizontal tube rubber ring 13B from falling off from the horizontal tube bush 13A. For example, polyvinyl chloride resin is suitably used for the horizontal tube rubber ring restraining member 13C.

The connection between the horizontal pipe socket member 13 and the horizontal pipe Y is performed by inserting the end of the horizontal pipe Y into the horizontal pipe bush 13A. For this reason, it is preferable that the inner diameter of the horizontal tube rubber ring 13B is smaller than the outer diameter of the horizontal tube Y. As a result, the horizontal pipe Y is tightened by the elastic force of the horizontal pipe rubber ring 13B generated when the horizontal pipe Y is inserted, and the horizontal pipe socket member 13 and the horizontal pipe Y are fixed.
Alternatively, the inserted horizontal pipe Y and the horizontal pipe socket member 13 may be fixed by adhesive. In this case, the horizontal tube rubber ring 13B may not be provided.

Any method can be used to confirm the insertion amount of the horizontal pipe Y into the horizontal pipe receiving member 13. For example, there is a method of marking the horizontal pipe Y to indicate a prescribed insertion distance and visually observing the position of the marking at the time of insertion.
Alternatively, by making each component of the horizontal pipe socket member 13 transparent, the insertion distance of the horizontal pipe Y inside the horizontal pipe socket member 13 may be visually confirmed. In this case, the insertion allowance can be confirmed more easily.

The lower connecting pipe 30 is a member provided below the joint 100. The above-mentioned intermediate pipe 20 is connected to the upper end of the lower connecting pipe 30. Further, the lower end of the lower connecting pipe 30 is connected to the downpipe T2.
The lower connecting pipe 30 includes a tapered portion 31, an upper connecting portion 32, and a lower connecting portion 33. The tapered portion 31 is a portion whose diameter decreases from above to below. The upper connecting portion 32 is a socket into which the intermediate tube 20 is inserted. The lower connection part 33 is a socket to which the downpipe T2 is connected. For example, adhesion is preferably used to attach the intermediate pipe 20 and the upper connecting portion 32.

Examples of the method for forming the lower connecting pipe 30 include a method in which an extruded pipe is processed into a socket (diameter enlarged), injection molding, and blow molding. Moreover, polyvinyl chloride resin is suitably used for the lower connecting pipe 30. Here, with extrusion molding, the inner and outer diameters of the lower connecting pipe 30 are constant at any part, whereas with injection molding, there are differences in wall thickness and inner and outer diameters due to the draft angle in the axial direction of the lower connecting pipe 30. arise. For this reason, molding by machining an extruded pipe into a socket is preferably used.

The sound insulating cover 40 has the role of preventing sound generated by drainage flowing inside the joint 100 from propagating to the outside. In this embodiment, the sound insulation cover 40 covers the periphery of at least one of the upper opening 11A, the lateral opening 11B, and the lower opening 11C. Alternatively, the sound insulation cover 40 covers the periphery of at least one of the standpipe socket member 12 and the horizontal pipe socket member 13. A method for molding the sound insulating cover 40 includes injection molding. Further, for the sound insulation cover 40, polyvinyl chloride resin or olefin resin is suitably used.

The sound insulation cover 40 includes an upper sound insulation cover 41 that covers the joint body 11 and a lower sound insulation cover 42 that covers the lower connecting pipe 30.
The upper sound insulating cover 41 is composed of at least two members. That is, the upper sound insulation cover 41 includes a first upper sound insulation cover 41A and a second upper sound insulation cover 41B. For example, as shown in FIG. 3, the first upper sound insulation cover 41A and the second upper sound insulation cover 41B have a dividing surface 40C in a direction perpendicular to the axial direction of the upstand pipe T1 or the downstand pipe T2. The first upper sound insulating cover 41A and the second upper sound insulating cover 41B may have a dividing surface 40C in the axial direction of the upstand pipe T1 or the downstand pipe T2, as shown in FIG. Thereby, the first upper sound insulating cover 41A and the second upper sound insulating cover 41B are arranged so as to mesh with each other at the dividing surface 40C.
Hereinafter, the joint 100 according to the present embodiment will be described as having a dividing surface 40C in a direction perpendicular to the axial direction of the upstand pipe T1 or downdown pipe T2, as shown in FIG.

The lower sound insulating cover 42 is arranged so as to cover the periphery of the lower connecting pipe 30. In this embodiment, the lower sound insulating cover 42 is preferably integrally molded into a tapered cylindrical shape to match the outer shape of the lower connecting pipe 30.
The upper sound insulating cover 41 and the lower sound insulating cover 42 are fixed by, for example, being fitted into each other (details will be described later).

The joint 100 according to this embodiment includes a water stop member S. This prevents water W from entering between the joint body 11 and the sound insulation cover 40. Further, water W that has entered between the joint body 11 and the sound insulation cover 40 is prevented from leaking out. In this embodiment, the water stop member S is an elastic body. The water stop member S is arranged between a plurality of structures described below. At this time, the water stop member S is provided around the entire circumference between the plurality of structures. Moreover, it is preferable that the water stop member S disposed between the plurality of structures is always in a compressed state. This preferably fills gaps between the plurality of configurations.
The water stop member S is, for example, a rubber ring member. The water stop member S may be an adhesive.

The water stop member S is provided, for example, between the outer surface of the joint body 11 and the sound insulation cover 40. At this time, for example, as shown in FIG. 5, the first upper sound insulating cover 41A and the second upper sound insulating cover 41B have a shape that closely contacts the lateral opening 11B of the joint body 11. Furthermore, as shown in FIG. 6, the first upper sound insulating cover 41A may have a shape that closely contacts the upper opening 11A of the joint body 11. The second upper sound insulating cover 41B may have a shape that closely contacts the lower opening 11C of the joint body 11.

The water stop member S may be provided between the standpipe socket member 12 or the horizontal pipe socket member 13 and the sound insulation cover 40.
When the water stop member S is provided between the standpipe socket member 12 and the sound insulation cover 40, for example, the water stop member S is provided between the stand pipe rubber ring suppressing member 12C and the first upper sound insulation cover 41A. . At this time, as shown in FIG. 7, the first upper sound insulating cover 41A has a shape that closely contacts the outer surface of the standpipe rubber ring restraining member 12C, for example. As shown in FIG. 8, the standpipe rubber ring suppressing member 12C may have a shape that closely contacts the outer surface of the first upper sound insulating cover 41A.

Further, as shown in FIG. 9, a second standpipe rubber ring suppressing member 12Ca may be provided which is in close contact with the standpipe rubber ring suppressing member 12C and the first upper sound insulating cover 41A, respectively. At this time, a water stop member S may be provided between the second standpipe rubber ring suppressing member 12Ca and the first upper sound insulating cover 41A.
When the water stop member S is provided between the standpipe socket member 12 and the sound insulation cover 40, the water stop member S may be provided between the outer surface of the standpipe bush 12A and the first upper sound insulation cover 41A. In this case, as shown in FIG. 10, the first upper sound insulating cover 41A may have a shape that closely contacts the outer surface of the standpipe bush 12A.

When the water stop member S is provided between the horizontal pipe socket member 13 and the sound insulation cover 40, for example, the water stop member S is provided between the horizontal pipe rubber ring suppressing member 13C and the first upper sound insulation cover 41A. . At this time, for example, as shown in FIG. 11, the first upper sound insulating cover 41A has a shape that closely contacts the outer surface of the horizontal tube rubber ring restraining member 13C. As shown in FIG. 12, the end portion of the first upper sound insulating cover 41A may be shaped to be located between the horizontal pipe bush 13A and the horizontal pipe rubber ring restraining member 13C.
Further, a water stop member S may be provided between the outer surface of the horizontal pipe bush 13A and the first upper sound insulating cover 41A. In this case, as shown in FIG. 13, the first upper sound insulating cover 41A It may have a shape that closely contacts the outer surface of the bush 13A.

The water stop member S may be provided between the upper sound insulation cover 41 and the lower sound insulation cover 42. Here, the upper sound insulating cover 41 and the lower sound insulating cover 42 have shapes such that the lower end of the second upper sound insulating cover 41B is in close contact with the outer surface of the lower sound insulating cover 42, as shown in FIG. 14, for example. In this case, the water stop member S is provided between the inner surface of the second upper sound insulating cover 41B and the outer surface of the lower sound insulating cover 42.
The upper sound insulating cover 41 and the lower sound insulating cover 42 may have shapes such that the lower end of the second upper sound insulating cover 41B is in close contact with the inner surface of the lower sound insulating cover 42, as shown in FIG. At this time, a socket may be provided at the upper end of the lower sound insulating cover 42. In this case, the water stop member S may be provided between the outer surface of the second upper sound insulation cover 41B and the inner surface of the socket of the lower sound insulation cover 42.
In addition, in this embodiment, the joint 100 is equipped with at least one of the water stop members S mentioned above. The joint 100 may include a plurality of the water stop members S described above.

In addition to the above-mentioned configuration, as shown in FIG. 16, a water-stopping member made of a rubber ring or the like is also provided in a portion where the upper sound insulating cover 41 does not have a shape that closely contacts the joint body 11 or the standpipe socket member 12. S may also be provided. In this case, the water stop member S is located between, for example, at least one of between the standpipe bush 12A and the sound insulation cover 40, between the upper opening 11A and the sound insulation cover 40, and between the lower opening 11C and the sound insulation cover 40. may be provided.

For example, a sound absorbing material is arranged between the sound insulation cover 40 and the joint body 11. Examples of sound absorbing materials include inorganic fibers such as glass wool and rock wool, organic fibers such as felt, and porous materials such as urethane. It can be used as well.

As explained above, according to the joint 100 according to the present embodiment, the water stop member S is provided between the outer surface of the joint body 11 and the sound insulation cover 40. Thereby, water W on the outside of the joint 100 can be prevented from entering between the joint main body 11 and the sound insulation cover 40. Further, even if water W were to enter between the joint body 11 and the sound insulation cover 40, it is possible to prevent the water W from leaking to the outside of the joint 100 from between the joint body 11 and the sound insulation cover 40. . Therefore, with the joint 100 disposed in the through hole H of the slab, water W can be prevented from leaking from above to below the slab.

Further, a water stop member S is provided between the standpipe socket member 12 or the horizontal pipe socket member 13 and the sound insulation cover 40. This can prevent water W from entering between the sound insulation cover 40 and the joint body 11 via the space between the stand pipe socket member 12 or the horizontal pipe socket member 13 and the sound insulation cover 40. Therefore, with the joint 100 disposed in the through hole H of the slab, water W can be prevented from leaking from above to below the slab.

Further, the water stop member S is provided between the outer surface of the standpipe bush 12A or the horizontal pipe bush 13A and the sound insulation cover 40. Thereby, water W can be prevented from entering between the sound insulation cover 40 and the joint body 11 via between the stand pipe bush 12A or the horizontal pipe bush 13A and the sound insulation cover 40.

Further, the water stop member S is provided between the vertical pipe rubber ring suppressing member 12C or the horizontal pipe rubber ring suppressing member 13C and the sound insulation cover 40. This prevents water W from entering between the sound insulation cover 40 and the joint body 11 via the space between the vertical pipe rubber ring restraining member 12C or the horizontal pipe rubber ring restraining member 13C and the sound insulation cover 40. can.

Further, a water stop member S is provided between the upper sound insulation cover 41 and the lower sound insulation cover 42. Thereby, water W can be prevented from entering between the sound insulation cover 40 and the joint body 11 via the space between the upper sound insulation cover 41 and the lower sound insulation cover 42.

Further, the upper sound insulating cover 41 is composed of at least two members, and has a dividing surface 40C in a direction perpendicular to the axial direction of the standpipe or along the axial direction of the standpipe. Thereby, the joint main body 11 can be covered by the upper sound insulating cover 41 by combining the two members at the dividing surface 40C. Therefore, for example, even if the upper sound insulating cover 41 does not have flexibility, it can be easily placed around the joint body 11. By using the upper sound insulating cover 41 that does not have flexibility, the effect of preventing water W from entering between the sound insulating cover 40 and the joint body 11 by the water stop member S can be significantly obtained.

Note that the technical scope of the present invention is not limited to the embodiments described above, and various changes can be made without departing from the spirit of the present invention.
For example, the upper sound insulating cover 41 may also serve as the vertical pipe rubber ring suppressing member 12C or the horizontal pipe rubber ring suppressing member 13C. Specifically, the upper sound insulating cover 41 may serve to prevent the standing pipe rubber ring 12B or the horizontal pipe rubber ring 13B from falling off without providing the standing pipe rubber ring suppressing member 12C or the horizontal pipe rubber ring suppressing member 13C. .

In addition, without departing from the spirit of the present invention, the components in the embodiments described above may be replaced with well-known components as appropriate, and the above-described modifications may be combined as appropriate.
For example, in the embodiment described above, the intermediate tube 20 connecting the joint body 11 and the lower connecting tube 30 is provided, but the intermediate tube 20 may not be provided. In this case, the joint body 11 and the lower connecting pipe 30 are directly connected to each other. Specifically, a structure in which the lower end of the joint body 11 serving as a spigot is inserted into the upper connecting part 32 that is a socket of the lower connecting pipe 30, or the lower end of the joint body 11 serving as a socket, A structure may be adopted in which the upper end of the lower connecting pipe 30 serving as a spigot is inserted.

11 Joint body 11A Upper opening 11B Side opening 11C Lower opening 12 Standpipe socket member 12A Standpipe bush 12B Standpipe rubber ring 12C Standpipe rubber ring suppressing member 12Ca Second standpipe rubber ring suppressing member 13 Side pipe holder Mouth member 13A Horizontal pipe bush 13B Horizontal pipe rubber ring 13C Horizontal pipe rubber ring suppressing member 30 Lower connecting pipe 40 Sound insulation cover 40C Dividing surface 41 Upper sound insulation cover 42 Lower sound insulation cover 100 Joint H Through hole S Water stop member W Water Y Horizontal pipe

Claims (6)

A joint comprising an upper opening to which a standpipe provided above is connected, a lateral opening to which a horizontal pipe provided to the side is connected, and a lower opening to which a lower connecting pipe provided below is connected. The main body and
a sound insulating cover that covers at least one of the upper opening, the lateral opening, and the lower opening;
Equipped with
A water stop member is provided between the outer surface of the joint body and the sound insulation cover,
Fittings. A joint comprising an upper opening to which a standpipe provided above is connected, a lateral opening to which a horizontal pipe provided to the side is connected, and a lower opening to which a lower connecting pipe provided below is connected. The main body and
a standpipe socket member disposed between the standpipe and the upper opening;
a horizontal pipe socket member disposed between the horizontal pipe and the horizontal opening;
a sound insulating cover that covers at least one of the vertical pipe socket member and the horizontal pipe socket member;
Equipped with
A water stop member is provided between the vertical pipe socket member or the horizontal pipe socket member and the sound insulation cover,
Fittings. The standpipe receiving member includes at least a standpipe bush into which the standpipe is inserted,
The horizontal pipe socket member includes at least a horizontal pipe bush into which the horizontal pipe is inserted,
The water stop member is provided between the outer surface of the standpipe bush or the horizontal pipe bush and the sound insulation cover,
The joint according to claim 2. The standpipe receiving member includes a standpipe bush into which the standpipe is inserted, a standpipe rubber ring that fills a gap between the standpipe bush and the standpipe, and a standpipe rubber ring that is connected to the standpipe. Equipped with a standpipe rubber ring restraining member to prevent it from falling off from the bush,
The horizontal pipe socket member includes a horizontal pipe bush into which the horizontal pipe is inserted, a horizontal pipe rubber ring that fills a gap between the horizontal pipe bush and the horizontal pipe, and a horizontal pipe rubber ring that is connected to the horizontal pipe. Equipped with a horizontal tube rubber ring restraining member to prevent it from falling off from the bush,
The water stop member is provided between the vertical pipe rubber ring suppressing member or the horizontal pipe rubber ring suppressing member and the sound insulation cover.
The joint according to claim 2. The sound insulation cover is
an upper sound insulating cover that covers at least the joint body;
a lower sound insulating cover that covers at least the lower connecting pipe;
Equipped with
A water stop member is provided between the upper sound insulation cover and the lower sound insulation cover,
The joint according to claim 1 or 2. The sound insulation cover includes an upper sound insulation cover that covers at least the joint body,
The upper sound insulating cover is composed of at least two members, and has a dividing surface in a direction perpendicular to the axial direction of the standpipe or along the axial direction of the standpipe.
The joint according to claim 1 or 2.

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