JP2011106560A - Guide member, and pipe joint with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide member sufficiently causing a centripetal action to a vertical pipe when inserting the vertical pipe into a pipe joint and thereby improving a working efficiency, and to provide the pipe joint equipped with the guide member. <P>SOLUTION: The guide member 2 includes connections 4 connected to the upper end 1a of a pipe joint body 1 which is a cylindrical body, and a cylindrical part 5 extending above the upper end 1a of the pipe joint body 1. The cylindrical part 5 is formed with an slope 6a projecting toward the axis S1 of the pipe joint body 1 according as advancing downward from above. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a guide member and a pipe joint including the guide member, and more specifically, to a pipe joint receiving port for connecting a vertical pipe and a horizontal pipe used in a drainage facility for a multi-layer building or the like. It is invention regarding the pipe member provided with this guide member and this guide member.

  Conventionally, in multi-layer buildings such as apartments and condominiums, drainage from drainage facilities such as toilets and bathtubs has been piped vertically between floors by horizontal pipes piped along the floor of each floor. The horizontal pipe and the vertical pipe are connected to each other by providing a pipe joint at each intersection.

  As such a pipe joint, for example, the upper end portion of the pipe joint main body that is a cylindrical body (that is, the portion corresponding to the receiving port for inserting the riser pipe) is formed larger in diameter than the lower end portion of the riser pipe. A cylindrical packing made of an elastic material such as rubber is used to fill the gap between the vertical tube and the pipe joint body with the vertical tube inserted into the inner peripheral surface of the upper end. There is something that has been.

  Furthermore, the inner peripheral surface above the packing has a centripetal action toward the shaft center of the pipe joint body with respect to the lower end portion of the vertical pipe inserted into the pipe joint body (the shaft center of the pipe is connected to the axis of the pipe joint body). A taper portion having a diameter that decreases from the upper side to the lower side is provided (for example, Patent Document 1).

JP 2001-27374 A

  However, according to the pipe joint proposed in Patent Document 1 described above, the tapered portion provided in the packing is formed of an elastic member such as rubber as a raw material in the same manner as the packing. When it comes into contact with the tapered portion, the tapered portion is slightly deformed in accordance with the shape of the lower end portion of the standing tube.

  As a result, the contact area between the lower end portion of the vertical tube and the tapered portion is increased, and the frictional force generated between them is increased. There was a problem that work efficiency was poor.

  In addition, since the packing formed with the taper portion is loaded on the inner peripheral surface of the receiving port of the pipe joint body, the lower end portion of the vertical pipe is not sufficiently centripetal as described above. Therefore, there is a possibility that the packing may be peeled off from the inner peripheral surface of the receiving port because a strong force downward (load due to the dead weight of the vertical tube) acts only on a part of the packing.

  The present invention has been made in view of the above circumstances, and a guide member capable of sufficiently producing a centripetal action on the standpipe when the standpipe is inserted into a pipe joint, thereby improving work efficiency, and the guide member. It aims at providing the pipe joint provided with.

  The guide member according to the present invention is a cylindrical member provided at the upper end portion of the pipe joint main body, and has an inclined surface that protrudes toward the center in the axial direction of the pipe joint main body from the upper side to the lower side. When the vertical pipe is inserted into the pipe joint main body, the lower end of the vertical pipe is inserted into the upper end of the pipe joint main body after being subjected to centripetal action by the inclined surface of the guide member. It is possible to sufficiently produce a centripetal action against the above and improve the working efficiency.

  That is, the guide member according to the present invention is a guide composed of a connection portion connected to the upper end portion of a pipe joint main body that is a cylindrical body, and a cylindrical portion extending above the upper end portion of the pipe joint main body. It is a member, Comprising: The inclined surface which protrudes toward the axial direction center side of the said pipe joint main body is formed in the said cylindrical part as it goes below from the upper part of the said cylindrical part, It is characterized by the above-mentioned.

  According to the guide member according to the present invention configured as described above, when the vertical pipe is inserted into the pipe joint body, the lower end portion of the vertical pipe is subjected to a centripetal action along the inclined surface formed in the cylindrical portion. However, since the standpipe is inserted into the upper end of the pipe joint body in a state where the shaft center of the standpipe and the axis of the pipe joint body are substantially coincident with each other, the centripetal action can be sufficiently generated. Efficiency can be improved.

  In addition, with the shaft center of the standpipe substantially aligned with the pipe joint body, the lower end of the standpipe comes into contact with the packing of the pipe joint body. It is also possible to prevent peeling.

  Here, the guide member is preferably formed of a non-elastic member such as resin or metal. According to the guide member formed of such a non-elastic member, the vertical tube has a centripetal action along the inclined surface. When receiving, since it can prevent that an inclined surface deform | transforms, the lower end part of a standing tube becomes easy to slide with respect to an inclined surface, and a centripetal effect becomes easier to produce.

  Further, in the guide member according to the present invention, the tubular portion is formed with a plurality of ribs arranged at predetermined intervals in the circumferential direction, and the inclined surface is a surface facing the axial center side of the rib. It is good also as composition which is.

  According to the guide member of the present invention configured as described above, the inclined surface is a surface facing the axial center side of the pipe joint body among the ribs provided at a predetermined interval. Compared with the case where it is provided on the entire circumference of the inner peripheral surface of the shaped portion, it is possible to omit materials such as resin and metal for forming an inclined surface by a corresponding amount between the ribs. The cost can be reduced.

  Furthermore, the guide member which concerns on this invention WHEREIN: It is good also as a structure whose inner peripheral surface (entire periphery) of the said cylindrical part is the said inclined surface.

  According to the guide member according to the present invention configured as described above, the entire circumference of the inner peripheral surface of the cylindrical portion is one continuous inclined surface. Therefore, when the synthetic resin is cured and manufactured, it is simple. Can be produced by simple processes.

  In the guide member according to the present invention, the pipe joint main body is formed with a flange portion for connecting to another vertical pipe at an upper end portion thereof, and the connection portion of the guide member includes Further, a protruding portion that is fastened to the flange portion by the fastening member may be formed.

  According to the guide member according to the present invention configured as described above, the connecting portion is formed with the protruding portion that is fastened to the flange portion formed in the pipe joint main body, so that the flange portion is formed at the upper end portion. The present invention can also be applied to a pipe joint main body.

  The pipe joint according to the present invention is characterized in that any one of the above-described guide members of the present invention is provided at the upper end portion thereof.

  According to the pipe joint according to the present invention configured as described above, the centripetal action can be surely generated when the standing pipe is inserted, and the working efficiency can be improved.

  According to the guide member and the pipe joint provided with the guide member according to the present invention, the centripetal action can be surely generated when the standing pipe is inserted into the pipe joint, and the working efficiency can be improved.

It is a perspective view which shows the pipe joint 100 provided with the guide member 2 of Example 1. FIG. It is the sectional view on the AA line of the pipe joint 100 of FIG. It is the elements on larger scale which show the detailed structure of the guide member 2 of FIG. It is an upper surface enlarged view of the pipe joint 100 of FIG. It is a schematic diagram for demonstrating the state which inserts the standing pipe 10 in the pipe joint 100 of Example 1. FIG. It is a schematic diagram (sectional drawing) explaining the effect | action of the guide member 2 at the time of inserting the standing pipe 10 in the pipe joint 100 of Example 1. FIG. It is a perspective view which shows the pipe joint 200 provided with the guide member 22 of Example 2. FIG. It is sectional drawing which shows the structure of the guide member 22 of FIG. It is a perspective view which shows the pipe joint 300 provided with the guide member 32 of Example 3. FIG. It is sectional drawing which shows the structure of the guide member 32 of FIG.

  Hereinafter, based on FIGS. 1-6, the pipe joint 100 provided with the guide member 2 of Example 1 as embodiment of this invention is demonstrated.

  FIG. 1 is a perspective view illustrating a pipe joint 100 including the guide member 2 according to the first embodiment. FIG. 2 is a cross-sectional view of the pipe joint 100 of FIG.

  The pipe joint 100 of Example 1 has the pipe joint main body 1 which is a cylindrical body, and the guide member 2 connected to the upper end of the pipe joint main body 1 as shown in FIG.1 and FIG.2. .

  As shown in FIG. 2, the pipe joint main body 1 includes a vertical pipe insertion portion (upper end portion) 1 a into which the lower end portion of the vertical pipe 10 is inserted, and a plurality of horizontal draw pipe insertion portions into which the end portions of the horizontal draw pipe 20 are inserted. 1b.

  Further, as shown in FIGS. 3 and 4, the upper end portion 1 a is provided with a water stop by filling a gap between the vertical tube 10 and the pipe joint body 1 with the vertical tube 10 inserted into the inner peripheral surface thereof. A packing 3 formed of an elastic member such as rubber is loaded, and a taper portion 3a whose diameter is reduced from the upper side to the lower side is provided on the inner peripheral surface above the packing 3. .

  The guide member 2 includes a connecting portion 4 connected to the upper end portion 1 a of the pipe joint main body 1 and a cylindrical portion 5 extending upward from the upper end portion 1 a of the pipe joint main body 1.

  As shown in FIGS. 3 and 4, the connecting portion 4 is connected to the upper end portion 1a so as to surround the outer peripheral edge of the upper end portion 1a, and the cylindrical portion 5 has a predetermined circumferential direction inside thereof. A plurality of ribs 6 arranged at intervals are formed.

  And the surface which faced the axial center S1 side of the pipe joint main body 1 of these some ribs 6 becomes the inclined surface 6a which protruded toward the axial center S1 as it goes below from the upper direction.

  Further, the connecting portion 4, the cylindrical portion 5 and the rib 6 are formed of a synthetic resin or the like (polyvinyl chloride or the like) which is an inelastic member.

  Next, the effect | action of the guide member 2 at the time of inserting the standpipe 10 with respect to the pipe joint 100 of Example 1 is demonstrated.

  FIG. 5 is a schematic diagram for explaining a state in which the standing pipe 10 is inserted into the pipe joint 100 of the first embodiment, and FIG. 6 is a schematic diagram (cross-sectional view) for explaining this action.

  When the vertical pipe 10 is inserted into the pipe joint 100, the horizontal pipe 20 is inserted into the horizontal pipe insertion portion 1b of the pipe joint 100 on the lower floor, and the vertical pipe 10 is connected to the upper end of the pipe joint 100 from the upper floor side. Move down toward 1a.

  At this time, when the shaft center S0 of the standpipe 10 is eccentric from the shaft center S1 of the pipe joint body 1, before the lower end portion of the standpipe 10 comes into contact with the taper portion 3a of the packing 3, the inclined surface 6a. A part of them is contacted (FIG. 6A).

  When the standpipe 10 is further lowered from this state, as shown in FIG. 6B, the lower end portion of the standpipe 10 is centripetal toward the axis S1 of the pipe joint body 1 along the inclined surface 6a. As shown in FIG. 6 (c), the shaft center S0 of the vertical tube 10 and the shaft center S1 of the pipe joint main body 1 are moved downward while receiving the action until they contact the taper portion 3a of the packing 3. It will be in a state of approximately matching.

  In addition, since the inclined surface 6a (rib 6) is formed of an inelastic member, when the lower end portion of the vertical tube 10 receives a centripetal action along the inclined surface 6a, the inclined surface 6a is easier than the packing 3. Without deformation, the lower end portion of the standpipe 10 is easy to slide along the inclined surface 6a.

  And when the standpipe 10 contacts the taper part 3a of the packing 3, as mentioned above, the axial center S0 of the standpipe 10 and the axial center S1 of the pipe joint main body 1 are already in a substantially coincident state. A relatively wide area at the lower end of the standpipe 10 contacts the tapered portion 3a.

  For this reason, an excessive load (mass of the standing tube 10) is not applied only to a part of the tapered portion 3a, and the lower end portion of the standing tube 10 is lowered while receiving a centripetal action toward the axis S1 by the tapered portion 3a. Until the vertical pipe 10 reaches the upper end portion 1a of the pipe joint body 1, the axial center S0 of the vertical pipe 10 and the axial center S1 of the pipe joint body 1 are in agreement with each other. It can be inserted into the pipe joint 100 (the pipe joint body 1).

  In addition, in a state where the vertical pipe 10 is inserted into the pipe joint main body 1, the outer surface of the vertical pipe 10 and the pipe joint main body 1 are arranged so that the packing 3 fills the gap between the vertical pipe 10 and the pipe joint main body 1. Since the inner peripheral surface is in close contact, the vertical pipe 10 is connected to the pipe joint 100 in a watertight and airtight manner.

  According to the guide member 2 according to the first embodiment configured as described above, when the riser pipe 10 is inserted into the pipe joint body 1, the lower end portion of the riser pipe 10 is inclined at the cylindrical part 5. The pipe 10 is moved downward along the surface 6a while receiving the centripetal action, and the vertical pipe 10 is connected to the upper end portion 1a of the pipe joint body 1 in a state where the axis S0 of the vertical pipe 10 and the axis S1 of the pipe joint body 1 substantially coincide with each other. Since it is inserted, a centripetal action can be sufficiently generated, and work efficiency (efficiency of construction from the upper floor side (operation for inserting the standpipe 10)) can be improved.

  Further, since the lower end portion of the vertical tube 10 comes into contact with the tapered portion 3a of the packing 3 in a state where the axial center S0 of the vertical tube 10 substantially coincides with the axial center S1 of the pipe joint main body 1, a part of the tapered portion 3a is formed. Only an excessive load is not applied, and peeling of the packing 3 can be prevented.

  Furthermore, since the guide member 2 is formed of an inelastic member, it is possible to prevent the inclined surface 6a from being deformed when the vertical tube 10 receives a centripetal action along the inclined surface 6a. The lower end of 10 becomes slippery with respect to the inclined surface 6a, and the centripetal action is more likely to occur.

  And according to the guide member 2 which concerns on this invention comprised in this way, the inclined surface 6a is a surface which faced the axial center S1 side of the pipe joint main body 1 among the ribs 6 provided by the predetermined space | interval. Therefore, as compared with the case where the inclined surface 6a is provided on the entire inner peripheral surface of the cylindrical portion 5, a resin, metal, or the like for forming the inclined surface 6a by an amount corresponding to the space between the rib 6 and the rib 6 or the like. Therefore, it is possible to reduce the weight and cost.

  Next, based on FIG.7 and FIG.8, the pipe joint 200 of Example 2 as embodiment of this invention is demonstrated.

  FIG. 7 is a perspective view illustrating a pipe joint 200 including the guide member 22 according to the second embodiment, and FIG. 8 is a cross-sectional view illustrating the structure of the guide member 22 illustrated in FIG.

  The guide member 22 according to the second embodiment is a single inclined surface 26 in which the entire inner peripheral surface of the cylindrical portion 25 is continuous.

  That is, as shown in FIG. 7, the pipe joint 200 including the guide member 22 according to the second embodiment is similar to the pipe joint 100 according to the first embodiment. The pipe joint main body 21 has an upper end portion 21a and a plurality of laterally drawn tube insertion portions 21b.

  Further, as shown in FIG. 8, the upper end portion 21 a is loaded with a packing 23 formed of an elastic member such as rubber on the inner peripheral surface thereof, and on the inner peripheral surface above the packing 23. Is provided with a tapered portion 23a having a diameter that decreases from the top to the bottom.

  And the guide member 22 has the connection part 24 connected to the upper end part 21a of the pipe joint main body 21, and the cylindrical part 25 extended upwards rather than the upper end part 21a of the pipe joint main body 21, The inner peripheral surface (entire circumference) of the cylindrical portion 25 is a single continuous inclined surface 26 that protrudes toward the axis S21 of the pipe joint body 21 from the upper side to the lower side of the cylindrical portion 25. .

  The action of the guide member 22 when inserting the stand pipe 10 into the pipe joint 200 of the second embodiment is as shown in FIG. 6 when inserting the stand pipe 10 into the pipe joint 100 of the first embodiment. Since it is the same as the effect | action of the guide member 2, description is abbreviate | omitted here.

  According to the guide member 22 according to the second embodiment configured as described above, since the entire inner peripheral surface of the cylindrical portion 25 is one continuous inclined surface 26, in the case of manufacturing with a synthetic resin or the like. It can be produced by a simple process.

  Next, based on FIG.9 and FIG.10, the pipe joint 300 of Example 3 as embodiment of this invention is demonstrated.

  FIG. 9 is a perspective view illustrating a pipe joint 300 including the guide member 32 according to the third embodiment. FIG. 10 is a cross-sectional view illustrating the structure of the guide member 32 illustrated in FIG.

  In addition, as a precondition in explaining the configuration of the guide member 32 of the third embodiment, when connecting the standpipe and the pipe joint, it is not limited to the method of inserting the standpipe into the pipe joint body, A method is also used in which a flange portion is formed at the lower end portion of the vertical pipe, a flange portion is formed at the upper end portion of the pipe joint body, and these flange portions are fastened together by a fastening member.

  The pipe joint main body 31 of the third embodiment is formed so as to be connected to the standing pipe by fastening the flange portions with a fastening member, and the flange portion 31c is formed on the upper end portion 31a. It is what.

  That is, as shown in FIG. 9, the pipe joint 300 including the guide member 32 according to the third embodiment is similar to the pipe joint 200 according to the second embodiment. A pipe member body 31 having an upper end portion 31a and a plurality of laterally drawn tube insertion portions 31b. Further, as described above, a flange is provided on the upper end portion 31a. A portion 31c is formed.

  Further, as shown in FIG. 10, packing 33 made of an elastic member such as rubber is loaded on the inner peripheral surface of the upper end portion 31 a, and on the inner peripheral surface above the packing 33. Is provided with a tapered portion 33a having a diameter that decreases from the top to the bottom.

  The guide member 32 includes a connection part 34 connected to the upper end part 31 a of the pipe joint body 31 and a cylindrical part 35 extending upward from the upper end part 31 a of the pipe joint body 31. The connecting portion 34 is formed with a plurality of protrusions 34a, and these protrusions 34a and the flange portion 31c of the pipe joint body 31 are fastened by a fastening member 37, whereby the guide member 32 is connected to the pipe joint body. 31 is connected to the upper end 31a.

  Further, in the tubular portion 35, as in the tubular portion 25 of the guide member 22 of the second embodiment, the inner peripheral surface (entire circumference) of the tubular joint body 31 extends from the upper side to the lower side of the tubular portion 35. It is one continuous inclined surface 36 which protrudes toward the axial center S31.

  Since the pipe joint 300 according to the third embodiment is provided with the guide member 32 at the upper end portion 31a, the vertical pipe (the vertical pipe 10 shown in FIG. 5) having no flange portion is used as the pipe. It can be inserted into the joint 300.

  The action of the guide member 32 when inserting the stand pipe 10 into the pipe joint 300 of the third embodiment is the same as the action of the guide member 2 when inserting the stand pipe 10 into the pipe joint 100 of the first embodiment, as shown in FIG. Since it is the same, description is abbreviate | omitted here.

  According to the guide member 32 according to the third embodiment configured as described above, the connection portion 34 is formed with the protruding portion 34a that is fastened to the flange portion 31c formed in the pipe joint main body 31. The present invention can also be applied to the pipe joint body 31 in which the flange portion 31c is formed on the portion 31a.

  In addition, the guide members 2, 22, and 32 of Examples 1-3 are selected according to the shape of the upper end part of the existing pipe joint, and can also be attached to and detached from the upper end part of the pipe joint by retrofitting.

1 Pipe fitting body 1a Upper end (stand tube insertion part)
1b Horizontally-drawing pipe insertion part 2 Guide member 3 Packing 4 Connection part 5 Tubular part 6 Rib 100 Pipe joint S1 Axle center of pipe joint body

Claims (5)

A connecting member connected to an upper end portion of a pipe fitting main body that is a tubular body, and a cylindrical portion extending upward from the upper end portion of the pipe fitting main body,
A guide member, wherein the tubular portion is formed with an inclined surface that protrudes toward the axially central side of the pipe joint body from the upper side to the lower side of the tubular portion.   The plurality of ribs arranged at predetermined intervals in the circumferential direction are formed in the cylindrical portion, and the inclined surface is a surface facing the axial center side of the rib. A guide member according to claim 1.   The guide member according to claim 1, wherein an inner peripheral surface of the cylindrical portion is the inclined surface.   The pipe joint main body is formed with a flange portion for connecting to another vertical pipe at an upper end portion thereof, and the connection portion of the guide member is fastened to the flange portion by a fastening member. The guide member according to any one of claims 1 to 3, wherein a protruding portion is formed.   A pipe joint comprising the guide member according to claim 1 at an upper end portion.

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