JP4451579B2 - Piping joint and its construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a pipe joint and its construction method.
[0002]
[Prior art]
  Conventionally, a pipe joint is connected to the end of a pipe that extends along the floor or behind the wall (hereinafter referred to mainly as an underfloor pipe), and indoor equipment such as a faucet is connected to the pipe via the pipe joint. Things are done.
  Conventionally, the pipe joint is often disposed in a portion concealed when viewed from the indoor side, such as under the floor, and in this case, the connection between the pipe and the pipe joint cannot be easily inspected. There is a problem.
  Therefore, in recent years, a pipe joint is arranged on the indoor side, and the end of the pipe extending under the floor is passed through the indoor side through a through hole provided in the floor (starting up), which is connected to the pipe joint and the pipe Fixing the joint to the floor surface has come to be performed.
[0003]
  FIGS. 17 to 19 show the construction examples together with configuration examples of the pipe joint.
  This construction example is an example of construction called a header construction method. In FIG. 17, reference numeral 200 denotes a header, and a plurality of pipes (resin pipes) 202 extend from the header 200 in the underfloor space.
[0004]
  In FIG. 18, 204 is a pipe joint fixed to the upper surface (inner surface) of the floor 206, and 208 is a through hole provided in the floor 206.
  One of the plurality of pipes 202 is raised on the floor (inside the room) through the through hole 208 and connected to the pipe joint 204.
[0005]
  Reference numeral 210 denotes a joint body in the pipe joint 204, in which a connection mechanism 212 of the resin pipe 202 is incorporated.
  The connection mechanism 212 includes a ring-shaped retaining member 214 and a spring 216 that urges the retaining member 214 downward in the drawing.
  The retaining member 214 has a claw 220 at the upper end of the elastic arm 218, and the pipe 202 is prevented from being pulled out by causing the claw 220 to bite into the outer surface of the pipe 202.
[0006]
  The connection mechanism 212 of this example can release the connection of the pipe 202 to the joint body 210. When the retaining member 214 is pushed upward against the urging force of the spring 216, the pipe 202 by the claw 220 is used. The biting into the outer surface is released, and the pipe 202 can be extracted from the joint body 210 here.
  A metal ring 222 is attached to the lower end portion of the joint body 210, and the joint body 210 is pressed downward by a fixing member 224 that also serves as a one (cover member) through the ring 222.
[0007]
  A pedestal member 226 is disposed in the through hole 208, and the pipe 202 is brought out on the floor through the center hole 227 of the pedestal member 226.
  The pedestal member 226 has a flange-shaped seat portion 228, and is fixed to the floor 206 with screws 230 in a state where the seat portion 228 is seated on the upper surface of the floor 206.
[0008]
  The pedestal member 226 has a cylindrical portion 232 that rises on the floor.
  A male screw 234 is formed on the outer peripheral surface of the cylindrical portion 232, and a female screw 236 formed on the inner peripheral surface of the fixing member 224 is screwed into the male screw 234.
  Based on the screwing of the fixing member 224 into the pedestal member 226, the joint body 210 is fixed in a state in which the lower end thereof is strongly brought into contact with the upper end of the pedestal member 226.
[0009]
  Note that the joint body 210 of this example is of a water faucet integrated type, and a water faucet 240 having a water stop valve body 238 on the upper part thereof is integrally formed.
  Furthermore, a connection part 242 for connection with indoor equipment is also integrally formed at the upper part.
[0010]
  In the case of this example, as shown in FIG. 19, the pipe 202 is taken out to the floor through the through hole 208 and passed through the center hole 227 of the base member 226, and then the base member 226 is fixed to the upper surface of the floor 206 and the pipe. The end of 202 is connected to the joint main body 210, and then the fixing member 224 is screwed into the base member 226 to fix the joint main body 210 and the pipe 202 end.
[0011]
[Problems to be solved by the invention]
  By the way, when constructing the pipe 202 on-site, a pipe pressure test is performed by applying a pressure (1.75 to 2.5 MPa) to the inside of the pipe 202 when the construction is completed. The pipe joint 204 cannot be installed on the floor. In this case, a test plug 244 is attached to the end of the pipe 202 as shown in FIG. Then, the inside of the pipe 202 is closed, and in this state, pressure is guided into the pipe 202 and a pipe pressure test is performed.
[0012]
  That is, since a pipe pressure resistance test cannot be performed in a state where the pipe joint 204 is connected to the pipe 202 in advance, a test plug 244 is attached to the end of the pipe 202 instead of the pipe joint 204.
[0013]
  However, in this case, even if the pressure resistance performance is confirmed by the bending pipe pressure resistance test, the test plug 244 must be later removed from the pipe 202 and the end of the pipe 202 must be reconnected to the pipe joint 204. Therefore, there arises a problem that sufficient pressure resistance performance cannot be guaranteed for the connection portion between the pipe 202 and the pipe joint 204. This is because the pipe pressure resistance test is not performed with the pipe joint 204 connected to the pipe 202.
  That is, in the case of this example, there is a problem that the pipe pressure resistance test cannot be performed on the connection portion between the pipe 202 and the pipe joint 204.
[0014]
  In addition, in the case of the conventional pipe joint 204 shown in FIGS. 18 and 19, since the base member 226 and the fixing member 224 that also serves as one are screw-coupled, if the base member 226 is inclined, the base member 226 There was a problem that the screwing with the fixing member 224 was difficult to perform and the workability was poor.
[0015]
[Means for Solving the Problems]
  The pipe joint and its construction method of the present invention have been devised to solve such problems.
  Thus, claim 1 relates to a pipe joint, which extends on the back side of the floor or wall and is connected to the end of the pipe protruding through the through hole provided in the base made of the floor or wall to the indoor side. And (b) a joint body connected to the end of the pipe, (b) a seating part seated on and fixed to the inner surface of the base, and And a base member having a joint fixing portion fixed to the joint body, and the base member is separated at least at a predetermined position in the circumferential direction, and the base member is opened and closed along the inner surface of the base body. PossibleThe joint fixing portion of the pedestal member has a cylindrical portion that fits to the outer surface of the joint body, and the entire pedestal member can be opened and closed by a separation portion at a predetermined circumferential direction. The pedestal member is formed with a gap that allows water leakage to flow out to the inner surface side of the base body and to the outside of the pedestal member in the separation portion of the tubular portion with the pedestal member closed.It is characterized by that.
[0016]
  Claim 2 isA pipe joint that extends on the back side of the floor or wall and is connected to the end of a pipe protruding through the through hole provided in the base made of the floor or wall to the indoor side and fixed to the inner surface of the base And (b) a joint main body connected to the end of the pipe, (b) a seat seated on and fixed to the inner surface of the base body, and a base having a joint fixing section fixed to the joint main body. And at least the seating portion is separated at a predetermined position in the circumferential direction, and can be opened and closed along the inner surface of the base body at the separation portion, and the joint fixing portion of the base member Has a cylindrical portion that fits to the outer surface of the joint body, and the entire pedestal member can be opened and closed by a separation portion at a predetermined position in the circumferential direction, and is further fitted to the cylindrical portion. A fixing ring is provided to restrain the pedestal member in the closed state. There Te is, theAn engagement claw is provided on one of the inner surface of the fixing ring and the outer surface of the cylindrical portion of the pedestal member, and an engagement recess is provided on the other.ThereThe fixing ring and the pedestal member are fixed in the axial direction by the engagement between the engaging claw and the engaging recess.
[0017]
  In claim 3,A pipe joint that extends to the back side of the floor or wall and is connected to the end of a pipe protruding through the through hole provided in the base made of the floor or wall to the indoor side and fixed to the inner surface of the base There,(B) a joint body connected to the end of the pipe; (b) a seating part seated on and fixed to the inner surface of the base body; and a base member provided with a joint fixing part fixed to the joint body. And the pedestal member has at least the seating portion separated at a predetermined position in the circumferential direction, and can be opened and closed along the inner surface of the base body at the separation portion,Furthermore, a cover member for accommodating the pedestal member inside is provided.,TheThe cover member is provided with an engagement claw or engagement recess on the inner surfaceThereThe engaging claw or the engaging recess engages with the engaging recess or the engaging claw provided on the base member or the member fixed to the base member, and the engagement claw and the engaging recess engage with each other. The cover member is fixed.
[0018]
  Claim4Is related to the construction method of piping jointsThis construction method extends to the back side of the floor or wall, and is connected to the end of the pipe protruding through the through hole provided in the base made of the floor or wall, and fixed to the inner surface of the base. (B) a joint body connected to the end of the pipe; (b) a seating part that is seated on and fixed to the inner surface of the base; and a joint fixing that is fixed to the joint body A pedestal member provided with a portion, and the pedestal member has at least the seating portion separated at a predetermined position in the circumferential direction, and can be opened and closed along the inner surface of the base body at the separation portion.A pipe joint construction method, wherein the joint body is connected in advance to an end portion of the pipe, the joint body is projected to the indoor side through the through hole, and then the open state is formed on the indoor side. The base member is closed to fix the joint fixing portion to the joint main body, and the seating portion is fixed to the base body.
[0019]
[Operation and effect of the invention]
  As described above, the pipe joint according to claim 1 has a joint body connected to the end of the pipe and a pedestal member, and the pedestal member is seated on and fixed to the inner surface of a base such as a floor. And a joint fixing portion fixed to the joint body, at least the seating portion is separated at a predetermined position in the circumferential direction, and the separation portion can be opened and closed along the inner surface of the base body. In the case of a joint, the joint body can be fixed to a base body such as a floor by closing the base member in an open state without passing the joint body through the hole of the base member.
  That is, under the condition that the joint main body is connected to the pipe end portion in advance, it can be taken out to the inside of the base body, such as on the floor, and then fixed to the base body by the base member.
[0020]
  According to the present invention, it is possible to perform a pipe pressure resistance test in a state where the joint main body is connected to the pipe end in advance, and thereafter, the pipe end and the joint main body are kept in their connected state on the base body. Can be fixed.
  Therefore, according to the present invention, it is possible to ensure a sufficient withstand pressure for the connecting portion between the joint body and the pipe.
[0021]
  Here, the present invention can be suitably applied when the pipe is a resin pipe.The
  In addition, the joint body can be provided with a water stop cock.
  In the present invention, it is also possible to constitute the joint body in a form not integrally provided with such a stop cock, and in this case as well, the joint body is connected to the pipe by attaching a closure plug to the joint body. The pipe pressure resistance test can be performed under the condition, but if the joint body is equipped with a stop cock, the stop cock must be closed without using such a special closing plug. Therefore, it is possible to perform the pipe pressure test well, and the pipe pressure test and subsequent work are further simplified.
  Furthermore, since the piping pressure resistance test can be performed with the stop cock attached, it is possible to guarantee the pressure resistance with the stop cock included.
[0022]
  In the pipe joint of this claim 1The joint fixing portion of the pedestal member is provided with a cylindrical portion that fits to the outer surface of the joint body, and the entire pedestal member can be opened and closed by a separation portion at a predetermined circumferential direction.The
  In this case, the base member can be fixed to the joint body and the base by dividing the base member into a plurality of divided bodies and closing them together.The
  In particular, when this is done, the pedestal member can be fitted to the outer surface of the joint body in the cylindrical portion, the radial dimension of the pedestal member can be reduced, and from the base body such as the floor of the joint body. Therefore, it is possible to make the pipe joint including the base member and the joint body compact.
[0023]
  In the pipe joint according to claim 1,With this closed, a gap is formed in the separation part of the cylindrical part so that water leaks out to the inner surface side of the base and the outer side of the base member.The
  in this wayby doingWhen there is water leakage, the water leaks to the outside of the pedestal member and the indoor side (inner surface side of the base) through the gap, and does not flow out of the room, such as under the floor. Can take necessary measures.
[0024]
  Claim2In this case, the pipe joint is provided with a fixing ring that is fitted on the cylindrical portion of the pedestal member and restrains the pedestal member in a closed state. In this case, the pedestal member can be opened and closed. Nevertheless, the shape can be stably restrained in the closed state.
[0025]
  Here, the fixing ring can be a cylindrical fixing sleeve.
  Thus, by making the fixing ring into a cylindrical fixing sleeve, the base member can be more strongly and stably restrained..
[0026]
  In this claim 2,The fixing ring and the cylindrical portion of the base member are engaged in the axial direction, so that the fixing ring and the base member areIt is supposed to be fixedIn this case, the fixing ring and the cylindrical portion, that is, the pedestal member that are fitted around the cylindrical portion can be easily fixed in the axial direction.
  In this case, the engagement between the engagement claw and the engagement recess can be an elastic engagement.
[0027]
  In these claims, the pedestal member can be provided with an engaging claw and an engaging recess that are temporarily fixed in a state where the separating portion is closed, and in this way, the fixing operation of the joint body by the pedestal member, As a result, the construction work of the pipe joint can be facilitated.
  Here, the engagement between the engagement claw and the engagement recess can be an elastic engagement.
[0028]
  Further, the inner surface of the cylindrical portion and the outer surface of the joint body can be fixed in the axial direction by the engagement of the engaging claw and the engaging recess, and in this way, the base member and The joint body can be easily fixed in the axial direction.
[0029]
  Alternatively, a retaining recess is provided in the joint body and the cylindrical portion of the pedestal member, and the retaining member is mounted across the retaining recess, thereby fixing the joint body and the pedestal member in the axial direction. Even in this case, the joint body and the base member can be easily fixed in the axial direction.
[0030]
  Claim 3 isA cover member for accommodating the pedestal member insideMorePrepare pipe fittingsThisBy doing so, the pipe joint can be installed and installed in a state where the pedestal member is concealed by the cover member, and the appearance of the construction completion state can be improved.
[0031]
  In this case, the cover member and the pedestal member or the member fixed to the pedestal member are provided with an engaging claw and an engaging concave portion so that they are engaged with each other, thereby fixing the cover member.And thisBy doing so, the cover member can be easily fixed.
  In this case, the engagement between the engagement claw and the engagement recess can be an elastic engagement.
[0032]
  In the pipe joint of the present inventionThe joint body is provided with a connection part for connection with indoor equipment, and the connection part can be rotated within a rotation plane that forms 45 ° with respect to the axis of the joint body.And you can do it like thisIt is possible to easily cope with the case where the mating member connected to the joint main body on the indoor side is in the same direction as the axis of the joint main body or in the direction perpendicular to the axis.
[0033]
  Next claim4When constructing a pipe joint, connect the joint body in advance to the end of the pipe, project the joint body into the room through the through hole in the base, and then close the pedestal member open in the room. Then, the joint body is fixed to the base via the base member. According to this method, the pipe pressure test and the pipe joint can be fixed while the joint body is connected to the pipe end. A sufficient seal reliability can be ensured for the connecting portion with the main body, and the pressure resistance performance can be guaranteed.
[0034]
【Example】
  Next, embodiments of the present invention will be described in detail with reference to the drawings.
  In FIG. 1, reference numeral 10 denotes a header, and a plurality of pipes (resin pipes) 12 extend from the header 10 in the underfloor space.
  2 to 5 show the configuration of the pipe joint 18 connected to the end of the pipe 12 on the floor.
[0035]
  In these drawings, reference numeral 14 denotes a floor (base), and a through hole 16 is formed at a predetermined position for taking the pipe 12 from the floor to the floor (inside the room).
  18 is a pipe joint installed on the upper surface (inner surface) of the floor 14, and 20 is a joint body constituting the main body.
[0036]
  A connection mechanism 22 for connecting the pipe 12 to the inside of the body 21 is incorporated in the joint body 20.
  The connection mechanism 22 includes a ring-shaped retaining member 24 and a spring 26 that urges the retaining member 24 downward in the drawing.
  The retaining member 24 has a claw 30 at the upper end portion of the elastic piece 28, and the claw 30 bites into the outer surface of the pipe 12 to prevent the piping 12 from being removed.
[0037]
  The connection mechanism 22 can also release the connection of the pipe 12 to the joint body 20. When the retaining member 24 is pushed upward against the urging force of the spring 26, the claw 30 opens and the pipe 12 outer surface is opened. The nail | claw 30 bites into this is released, and the pipe 12 can be extracted from the joint body 20 here.
[0038]
  In this example, the joint body 20 is integrally provided with a stop cock 32.
  The water stop valve 32 has a water stop valve body 34, and when the water stop valve body 34 is screwed downward, the water stop valve body 34 abuts on the valve seat 36 and the water channel inside the joint body 20. Shut off.
  Further, the water passage is opened by separating the water stop valve body 34 from the valve seat 36, and the opening degree of the water passage is controlled by adjusting the retreat amount of the water stop valve body 34, and the water amount passing through the water passage inside the joint body 20. Is adjusted.
[0039]
  The joint body 20 is also integrally provided with a connection portion 38 for connecting to a body 21 such as a faucet.
  The connecting portion 38 protrudes laterally in a direction perpendicular to the axis of the joint body 20, and an external thread portion 40 is provided on the outer peripheral surface thereof, and an annular groove 42 is provided at the base thereof.
[0040]
  The male screw portion 40 is for connection when the mating member 44 is a screw connection type having a female screw portion 46 as shown in FIG. 6, and the female screw portion 46 of the mating member 44 is connected to the male screw portion 40. The mating member 44 can be connected by screwing.
[0041]
  On the other hand, as shown in FIG. 6, the annular groove 42 is for connection when the mating member 44 has a male fitting surface 48 and a flange portion 50. In this case, the annular groove 42 is connected to the mating member 44 using a spring clip 51. The connection unit 38 can be connected.
[0042]
  Specifically, the male fitting surface 48 of the mating member 44 is fitted into the female fitting surface 54 of the connecting portion 38, and in this state, a pair of engaging portions in the spring clip 51 as shown in FIG. By engaging one of 52 in the annular groove 42, the pair of engaging portions 52 sandwich the male screw portion 40 and the flange portion 50 of the mating member 44 in the axial direction, whereby the mating member 44 and the connecting portion 38 are connected to each other. Can be connected in the axial direction.
[0043]
  3 to 5, reference numeral 56 denotes a pedestal member having a center hole 58, and the pipe 12 is taken out from the floor to the floor through the center hole 58.
  The pedestal member 56 has a flange-shaped seat portion 60 and a projecting portion 62 that projects downward from the flange-shaped seat portion 60, and the seat portion 60 is inserted into the through hole 16 so that the seat portion 60 is screw 64. It is fixed to the floor 14 by.
[0044]
  The pedestal member 56 has a cylindrical portion (tubular portion) 66 as a joint fixing portion that rises upward in the figure, and the cylindrical portion 66 is externally fitted to the joint body 20.
  An annular engagement claw 68 is formed on the inner surface of the cylindrical portion 66 as shown in FIG. 4, and the engagement claw 68 is formed in an annular engagement formed on the outer peripheral surface of the joint body 20. The recess 70 is engaged.
  Based on the engagement between the engagement claws 68 and the engagement recesses 70, the joint body 20 and the base member 56 are fixed in the vertical direction, that is, in the axial direction in the drawing.
[0045]
  As shown in FIGS. 4 and 5, in this example, the pedestal member 56 is divided into two divided bodies 56A and 56A, and the pedestal member 56 can be divided and closed into the respective divided bodies 56A and 56A. ing.
  That is, the pedestal member 56 is configured to be openable and closable along the upper surface of the floor 14 as an attachment base at the separation portion.
[0046]
  Each of the divided bodies 56A and 56A is provided with an engaging claw 72 having elasticity and an engaging recess 74 in the downward projecting portion 62, and the engaging claw having elasticity of one divided body 56A. 72 can be engaged (elastically engaged) with the engagement recess 74 of the other divided body 56A.
  These engagement claws 72 and engagement recesses 74 are for temporarily fixing the divided bodies 56A and 56A of the base member 56 in the closed state when the divided bodies 56A and 56A are closed.
[0047]
  Here, as shown in FIGS. 3 and 4, the base member 56 is formed with an annular groove on the inner peripheral surface thereof, and a sponge packing 63 is attached thereto.
  When the pedestal member 56 is closed, the sponge packing 63 seals the space between the pedestal member 56 and the pipe 12 in a watertight manner.
[0048]
  The pedestal member 56 also has a clearance S (FIG. 8 (IV), FIG. 9) that allows water leakage to flow out to the upper surface side (inner side) of the floor 14 and to the outside of the pedestal member 56 at the separation portion of the tubular portion 66 in the closed state. (See (V)).
[0049]
  Reference numeral 76 denotes a fixing sleeve (fixing ring) for restraining the base member 56 in the closed state, and has a cylindrical shape.
  The fixing sleeve 76 is externally fitted to the pedestal member 56 to restrain the divided bodies 56A and 56A of the pedestal member 56 in a closed state.
  The fixed sleeve 76 is provided with elastic pieces 78 at three locations in the upper part and in the circumferential direction, and elastic engagement claws 80 are formed to protrude inwardly at the distal ends of the elastic pieces 78. .
[0050]
  The fixing sleeve 76 engages (elastically engages) an engaging claw 80 having elasticity with the annular engaging recess 82 formed on the outer peripheral surface of the pedestal member 56 in a state of being externally fitted to the pedestal member 56. Thus, the fixing sleeve 76 and the pedestal member 56 are fixed in the vertical direction, that is, in the axial direction in the drawing.
[0051]
  Reference numeral 84 denotes a cover member (one) that covers the pedestal member 56 from the outside, and has a generally tapered shape, and a plurality of elastic pieces 86 protrude downward from its upper end at three locations in the circumferential direction.
  Engagement recesses 88 are provided at the lower ends of these elastic pieces 86, and these engagement recesses 88 are elastically engaged with an annular engagement claw 90 formed on the outer peripheral surface of the fixing sleeve 76.
[0052]
  The cover member 84 is fixed to the fixing sleeve 76, that is, the pedestal member 56 by the engagement of the engagement recess 88 and the annular engagement claw 90.
  In this example, as shown in FIG. 3, the pedestal member 56 is concealed inside by a cover member 84, so that the pipe joint 18 is in a good appearance state in the installed state.
[0053]
  The pipe joint 18 of this example can be constructed as follows.
  First, as shown in FIGS. 1 and 7, the joint body 20 in the pipe joint 18 is connected to the end of the pipe 12.
  In this state, pressure is introduced into the pipe 12 to perform a pipe pressure resistance test.
[0054]
  Thereafter, with the joint body 20 connected to the end of the pipe 12, the end of the pipe 12 and the joint body 20 are taken out onto the floor 14 through the through holes 16 of the floor 14 as shown in FIG. 8 (III). .
  Thereafter, the divided bodies 56A and 56A of the base member 56 in the open state are closed.
[0055]
  At this time, the engaging claws 72 having the elasticity of the divided bodies 56A and 56A and the engaging recess 74 are engaged with each other, and the divided bodies 56A and 56A closed together are temporarily fixed in the closed state.
  At this time, the engaging claw 68 in the pedestal member 56 is engaged with the annular engaging recess 70 in the joint main body 20, thereby fixing the pedestal member 56 and the joint main body 20 in the axial direction.
  FIG. 8 (IV) shows the state at this time.
[0056]
  Next, as shown in FIG. 9, the fixing sleeve 76 is externally fitted to the pedestal member 56 to restrain the divided bodies 56 </ b> A and 56 </ b> A of the pedestal member 56 in the closed state, and the engaging claw 80 of the fixing sleeve 76 is moved to the pedestal. The fixing sleeve 76 and the base member 56 are fixed in the axial direction by elastically engaging with the annular engaging recess 82 of the member 56.
[0057]
  Thereafter, as shown in FIG. 9 (VI), the seating portion 60 of the pedestal member 56 is fixed to the floor 14 with screws 64, and the cover member 84 is further fitted to the fixing sleeve 76.
  Specifically, the elastic piece 86 of the cover member 84 is fitted to the outer surface of the fixed sleeve 76, and the engaging recess 88 at the tip thereof is elastically engaged with the annular engaging claw 90 on the outer peripheral surface of the fixed sleeve 76. The cover member 84 is fixed to the fixing sleeve 76.
[0058]
  Thus, in this example, since the base member 56 is divided into two parts 56A and 56A, the base member 56 in the open state can be obtained without passing the joint body 20 through the center hole 58 of the base member 56. The joint body 20 can be fixed to the floor 14 by closing the divided bodies 56A and 56A.
  That is, the joint body 20 can be taken out to the upper surface of the floor 14 in a state where the joint body 20 is connected to the end of the pipe 12 in advance, and thereafter, it can be fixed to the floor 14 by the pedestal member 56.
[0059]
  Therefore, according to this example, the pipe pressure resistance test can be performed in a state where the joint main body 20 is connected to the end of the pipe 12 in advance, and then the pipe 12 end and the joint main body 20 are kept in a connected state. Since this can be fixed to the floor 14 and the pipe joint 18 can be fixed, sufficient sealing reliability can be ensured even at the connection portion between the joint body 20 and the pipe 12, and the pressure resistance performance can be guaranteed. .
[0060]
  Further, in this example, since the stop cock 32 is integrally provided in the joint body 20, it is possible to perform the pipe pressure resistance test satisfactorily by closing the stop cock 32 without using a special closing plug. Thus, the piping pressure test and the subsequent work can be simplified, and further, the pressure resistance guarantee can be performed with the stop cock 32 included.
[0061]
  Further, in this example, the cylindrical member 66 is provided on the pedestal member 56 and the entire pedestal member 56 can be divided and closed into the respective divided bodies 56A and 56A. Can be fitted snugly to the outer surface. Therefore, the radial dimension of the pedestal member 56 can be reduced, the height of the joint body 20 from the floor 14 can be lowered, and the pipe joint 18 including the joint body 20 and the pedestal member 56 is compactly configured. can do.
[0062]
  Here, in this example, since the gap S is formed in the separation part of the pedestal member 56, when water leaks, the water leaks to the outside of the pedestal member 56 and to the upper surface side (indoor side) of the floor 14 through the gap S. However, it does not flow out of the lower room under the floor 14. As a result, it can be easily known on the indoor side that water leakage has occurred, and necessary measures can be taken.
[0063]
  Further, in this example, since the fixing sleeve 76 is fitted to the pedestal member 56, the shape can be stably restrained in an annular shape even though the pedestal member 56 is divided.
[0064]
  Further, in this example, since the engaging claw 72 and the engaging recess 74 for temporarily fixing the pedestal member 56 in the closed state are provided in the pedestal member 56, the fixing operation of the joint body 20 by the pedestal member 56, and consequently the piping joint 18 Construction work can be facilitated.
[0065]
  In addition, in this example, the inner surface of the cylindrical portion 66 and the outer surface of the joint main body 20 are fixed to each other in the axial direction by the elastic engagement of the engagement claw 68 and the engagement concave portion 70. Can be easily fixed in the axial direction.
[0066]
  Further, the cylindrical portion 66 and the fixing sleeve 76 of the pedestal member 56 can be easily fixed in the axial direction by elastic engagement between the engaging recess 82 and the engaging claw 80 provided in each.
[0067]
  Furthermore, since the cover member 84 is provided with an engagement recess 88 and is elastically engaged with the engagement claw 90 of the fixing sleeve 76, the cover member 84 can be fixed easily. .
[0068]
  Thus, in this example, the base member 56 and the fixing sleeve 76 and the fixing sleeve 76 and the cover member 84 are fixed in the axial direction by the engagement of the engaging claws 80 and 90 and the engaging recesses 82 and 88, respectively. Therefore, it is possible to easily perform such fixing work and, in turn, installation work of the pipe joint 18.
[0069]
  Next, FIG. 10 shows another embodiment of the present invention.
  This example is an example in which the joint main body 20 is configured in such a form that does not have a water stop cock as described above. Here, a connection portion 92 having a male screw portion 40 and an annular groove 42 is provided at the end of the joint main body 20. Yes.
  In addition, this connection part 92 can also be used as a connection part of piping for connection with indoor side apparatus, such as a faucet, or it connected to a stop cock there and provided in the stop cock side. The indoor unit can be connected to the connection part through an internal pipe.
[0070]
  FIG. 11 shows still another embodiment of the present invention.
  In this example, the pedestal member 94 has a flange-shaped seat portion 96, a support portion 98 standing up from this, and a pair of semi-ring-shaped arms 100 provided at its upper end so as to be openable and closable. The pair of arms 100 are closed and their free ends are fastened with screws 102 so that the joint body 20 is held by the arms 100 so as to be held. .
[0071]
  Here, the pedestal member 94 has a seating portion 96 divided into two parts, which can be opened and closed around the hinge 103.
  In this example, the seat portion 96 of the pedestal member 94 is left open, the joint body 20 is taken out to the floor through the through hole 16 of the floor 14, and then the seat portion 96 of the pedestal member 94 is closed and seated. The pipe joint 18 can be installed on the floor 14 by fixing the portion 96 to the floor 14 with screws 64.
[0072]
  FIG. 12 shows still another embodiment of the present invention.
  In this example, a through-hole retaining recess 104 is provided in each of the cylindrical portion 66 and the fixing sleeve 76 of the pedestal member 56, and these retaining recesses 104 are in a state where the fixing sleeve 76 is externally fitted to the pedestal member 56. A semi-ring-shaped retaining member 106 is engaged inside, and a pair of arms 108 of the retaining member 106 are engaged with an annular engaging recess 70 as a retaining recess in the joint body 20, that is, the retaining member 106. Are fixed to the fixing sleeve 76, the base member 56, and the engaging recess 70 of the joint main body 20, so that the base member 56, the joint main body 20 and the fixing sleeve 76 are fixed in the axial direction.
  Also in this example, the base member 56, the joint body 20, and the fixing sleeve 76 can be easily fixed in the axial direction.
[0073]
  FIG. 13 shows still another embodiment of the present invention.
  In this example, the base member 56 and the fixing sleeve 76 are assembled in advance, and the whole is fitted downward with respect to the joint body 20, and then the base member 56 is closed and the engaging claws 68 of the base member 56 are engaged. By engaging with the engaging recess 70 of the joint body 20 and subsequently fitting the fixing sleeve 76 deeply into the outer surface of the base member 56, the base member 56 is fixed to the base body 56 and the base member 56 by the fixing sleeve 76. It is designed to perform restraint in the closed state.
[0074]
  In this embodiment, after the base member 56 and the fixing sleeve 76 are fitted to the joint body 20, the pair of divided bodies 56A and 56A of the base member 56 are closed by hand, and then the fixing sleeve 76 is pushed downward. Alternatively, for example, a portion of the joint body 20 below the annular engagement recess 70 may be slightly larger in diameter, and the base member 56 and the fixing sleeve 76 may be fitted downward. Thus, the engaging recess 70 can be hooked on the engaging claw 68 of the pedestal member 56 and the pedestal member 56 can be automatically closed by further pressing the pedestal member 56 and the fixing sleeve 76 downward.
[0075]
  FIG. 14 shows still another embodiment of the present invention.
  This example is an example in which the joint body 20 is provided with the water stopcock 32 and the connection portion 38 can be rotated on the rotation surface 110 that forms 45 ° with respect to the axis of the joint body 20.
  In the case of this example, as shown in (A) and (B), the connecting portion 38 is rotated by 180 ° on the rotating surface 110 so that the connecting portion 38 is oriented in the same direction as or relative to the axis of the joint body 20. The direction can be either a vertical direction or a horizontal direction in the figure.
[0076]
  In the case of this example, even when the mating member 44 is oriented vertically (in the same direction as the axial center of the joint body 20), or when it is oriented laterally (perpendicular to the axial center). Even if it exists, it can respond easily without trouble. That is, the mating member 44 and the joint body 20 can be connected.
[0077]
  FIG. 15 shows still another embodiment of the present invention.
  As shown in the figure, this example is an example in which a stop cock 32 is integrally provided on the side of the connecting portion 38 and can be rotated by a rotation surface 110 that forms 45 ° with respect to the axis of the joint body 20.
  Even in this case, it is possible to cope with both the case where the counterpart member 44 is in the vertical direction and the case where it is in the horizontal direction.
[0078]
  FIG. 16 shows still another embodiment of the present invention.
  This example is an example in which the positional relationship between the water stopcock 32 and the connecting portion 38 is different from that of the embodiment of FIG.
  Also in this example, it is possible to easily cope with both the case in which the counterpart member 44 is in the vertical direction and the case in which it is in the horizontal direction.
[0079]
  Although the embodiments of the present invention have been described in detail, these are merely examples. For example, in the present invention, the pedestal members 56 and 94 are not completely divided into divided bodies, but are separated at predetermined portions in the circumferential direction. It is also possible to make it openable and closable along the left-right direction in the drawing, that is, along the inner surface of the substrate.
[0080]
  Further, the joint body 20 exemplified above is merely an example of the present invention, and in the present invention, the joint body 20 can be configured in various other forms, and the present invention is within a range not departing from the gist thereof. It can be configured in various modified forms.
[Brief description of the drawings]
FIG. 1 is a diagram showing a pipe to which a pipe joint according to an embodiment of the present invention is connected.
FIG. 2 is a diagram showing a pipe joint according to an embodiment of the present invention in an external state and an installed state.
FIG. 3 is a cross-sectional view showing the pipe joint of the embodiment in an installed state.
FIG. 4 is a perspective view showing the pipe joint of the same example in an exploded manner.
FIG. 5 is a side view showing the pipe joint of the same embodiment in an exploded manner.
FIG. 6 is a view showing an example of a connection structure between the pipe joint and the mating member of the embodiment.
FIG. 7 is an explanatory diagram showing a construction procedure of the pipe joint of the same example.
FIG. 8 is an explanatory diagram of a construction procedure following FIG.
FIG. 9 is an explanatory diagram of a construction procedure following FIG.
FIG. 10 is a cross-sectional view showing a pipe joint of another embodiment of the present invention.
FIG. 11 is a perspective view showing a pipe joint of still another embodiment of the present invention.
FIG. 12 is a perspective view showing a pipe joint according to still another embodiment of the present invention.
FIG. 13 is a perspective view showing a pipe joint according to still another embodiment of the present invention.
FIG. 14 is a view showing a main part of a pipe joint of still another embodiment of the present invention.
FIG. 15 is a view showing a main part of a pipe joint of still another embodiment of the present invention.
FIG. 16 is a view showing a main part of a pipe joint of still another embodiment of the present invention.
FIG. 17 is an explanatory diagram of a pipe pressure resistance test when a conventional pipe joint is used.
FIG. 18 is a view showing a conventional pipe joint in an installed state.
19 is a diagram showing the pipe joint of FIG. 18 in an exploded state.
[Explanation of symbols]
        12 Piping
        14 Floor (base)
        16 Through hole
        18 Piping joint
        20 Fitting body
        32 Stopcock
        38,92 connections
        44 Counterpart
        56,94 Base member
        56A division
        60,96 seating
        66 Cylindrical part (tubular part)
        68, 72, 80, 90 engaging claw
        70, 74, 82, 88 Engaging recess
        76 Fixed sleeve (fixed ring)
        84 Cover member
        104 Retaining recess
        106 retaining member
        110 Rotating surface
         S clearance

Claims (4)

A pipe joint that extends to the back side of the floor or wall and is connected to the end of a pipe protruding through the through hole provided in the base made of the floor or wall to the indoor side and fixed to the inner surface of the base There,
(B) a joint body connected to an end of the pipe; and (b) a seating part seated on and fixed to the inner surface of the base and a base member provided with a joint fixing part fixed to the joint body. And the pedestal member has at least the seating portion separated at a predetermined position in the circumferential direction, and can be opened and closed along the inner surface of the base body at the separation portion ,
The joint fixing portion of the pedestal member has a cylindrical portion that fits to the outer surface of the joint body, and the entire pedestal member can be opened and closed by a separation portion at a predetermined position in the circumferential direction.
Further, the pedestal member is formed with a gap for allowing water leakage to flow out to the inner surface side of the base body and to the outer side of the pedestal member in the separation portion of the cylindrical portion with the pedestal member closed. Piping joint. A pipe joint that extends to the back side of the floor or wall and is connected to the end of a pipe protruding through the through hole provided in the base made of the floor or wall to the indoor side and fixed to the inner surface of the base There,
(B) a joint body connected to an end of the pipe; and (b) a seating part seated on and fixed to the inner surface of the base and a base member provided with a joint fixing part fixed to the joint body. And the pedestal member has at least the seating portion separated at a predetermined position in the circumferential direction, and can be opened and closed along the inner surface of the base body at the separation portion,
The joint fixing portion of the pedestal member has a cylindrical portion that fits to the outer surface of the joint body, and the entire pedestal member can be opened and closed by a separation portion at a predetermined position in the circumferential direction.
Furthermore, there is provided a fixing ring that externally fits to the cylindrical part and restrains the pedestal member in a closed state,
The one engagement claw to the inner surface of the fixing ring and the outer surface of the cylindrical portion of said base member, Yes an engaging recess provided in the other, the fixing ring by engaging with them engagement claws and engagement recess And a pedestal member are fixed in the axial direction. A pipe joint that extends to the back side of the floor or wall and is connected to the end of a pipe protruding through the through hole provided in the base made of the floor or wall to the indoor side and fixed to the inner surface of the base There,
(B) a joint body connected to an end of the pipe; and (b) a seating part seated on and fixed to the inner surface of the base and a base member provided with a joint fixing part fixed to the joint body. And the pedestal member has at least the seating portion separated at a predetermined position in the circumferential direction, and can be opened and closed along the inner surface of the base body at the separation portion,
Furthermore, a cover member for accommodating the pedestal member inside is provided ,
The cover member has an engagement claw or an engagement recess on the inner surface, and the engagement claw or engagement recess is formed on an engagement recess or engagement claw provided on the base member or a member fixed to the base member. A pipe joint, wherein the cover member is engaged and the cover member is fixed by engagement between the engagement claw and the engagement recess. A pipe joint that extends on the back side of the floor or wall and is connected to the end of a pipe protruding through the through hole provided in the base made of the floor or wall to the indoor side and fixed to the inner surface of the base And (b) a joint main body connected to the end of the pipe, (b) a seat seated on and fixed to the inner surface of the base body, and a base having a joint fixing section fixed to the joint main body. And the base member is a construction method of a pipe joint in which at least the seating portion is separated at a predetermined position in the circumferential direction and can be opened and closed along the inner surface of the base body at the separation portion. ,
The joint main body is connected in advance to the end of the pipe, the joint main body is protruded to the indoor side through the through hole, and then the base member in the open state is closed on the indoor side to fix the joint. And fixing the seat to the base body and fixing the seat to the joint body.

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