JP2005226384A - Joint member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint member which enables a conventional connection pipe to be used as it is and has a small number of parts and further is produced at a lower cost and is easily and pivotally rotated when connected with a mixing faucet. <P>SOLUTION: The joint member 14 supplies hot water or water from piping 30 to the mixing faucet 4. The joint member 14 comprises a main body 15 having a housing chamber 23 into which the connection pipe 8 is inserted, a cover part 24 having a first opening hole 25 to which the body 15 is inserted and a second opening hole 25a to which the connection pipe 8 is inserted and having a recessed groove 26 formed at an inner peripheral surface of the first opening hole 25, and a ring 28 to be mounted in the recessed groove 26. The body 15 includes a stepped part 19a comprising a flange 19 to be fitted to the first opening hole 25 of the cover part 24, and a large diameter part 18. When the body 15 is inserted into the first opening hole 25, the ring 28 is engaged with the stepped part 19a, so that the cover part 24 is freely rotated with respect to the body 15 and the connection pipe 8 is connected with the cover part 24. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a joint member that connects each end of a pipe such as a water supply pipe or a hot water supply pipe and a connecting pipe that supplies hot water or water to a mixing faucet.

  Conventionally, a connecting pipe that connects a pipe such as a water supply pipe or a hot water supply pipe disposed on a wall surface and a mixing faucet has been bent into a crank shape. This connecting pipe has an inlet part provided with a thread part for connecting to the pipe, a hot water inlet part formed on the back side of the mixing faucet or a connecting part for connecting the water inlet part, It is formed from the main-body part which connects a connection part and the said inflow port part. In addition, a flow path through which hot water or water passes is formed inside the connecting pipe, and hot water or water supplied from the pipe is supplied to the mixing faucet. To attach a mixing faucet using this type of connecting pipe to the wall surface, attach the connecting pipes to the hot water supply pipe and the water supply pipe, respectively, and then match the protruding amounts from the wall surfaces of both connecting pipes. The pitches of the connecting portions of the mixing faucet and the pitches of both inlet portions of the mixing faucet were made to coincide.

  Normally, when connecting the connecting pipe to the pipe, the contractor wound the sealing tape around the thread part of the inlet or coated the sealant, and then screwed the screw part into the pipe. After screwing, when adjusting so that the protruding amount from the wall surface of each connecting pipe attached to the hot water supply pipe and the water supply pipe becomes substantially equal, the pitch of the connecting part of each connecting pipe and the hot water inlet part of the mixing faucet And the pitch at the water inlet is rare. For this reason, it is necessary to repeat the screwing operation of the connecting pipe several times so that both pitches coincide with each other, and this operation is very time-consuming. Therefore, a connecting pipe that can freely rotate the position of the connecting portion even after being screwed into the pipe appears, and there are known ones of Patent Documents 1 to 3 as such connecting pipes.

  In Patent Document 1, the connecting pipe is connected to a relay pipe that connects the mixed water faucet and the pipe, and is arranged between the relay pipe and the pipe. On the outer periphery of the neck that protrudes on the outer end side of the decorative flange formed on the outer end, the O-ring fitted on the inner periphery of the insertion hole, A ring fitting that tightly grips the proximal end of the relay pipe that is fitted and inserted through the insertion hole.

  With this connecting pipe loosened, the base end of the relay pipe is inserted into the insertion hole of the connecting pipe body connected to the hot water or water supply pipe, and the relay pipe is brought to a desired angle. Then, the ring is rotated to tighten the relay pipe against the connecting pipe main body, and then the relay pipe is fixed to the mixing faucet.

  In Patent Document 2, the socket device includes a threaded portion fixed to a pipe, a first water channel portion extending in a first axial direction serving as a shaft of the threaded portion, and a first engagement portion. A fixed socket provided with a fitting portion, a fitting portion formed with a hole and a second engaging portion that fit into a fitted portion of the fixed socket, one communicating with the first water channel portion, and the other being It is comprised from the main body socket provided with the 2nd water channel part extended in the direction away from a 1st axis | shaft, and the 2nd water channel part connected to a mixing faucet.

  In this socket device, the second engagement portion of the main body socket is engaged with the first engagement portion of the fixed socket in the screwing direction by fitting the fitting portion of the main body socket to the fitted portion of the fixed socket. To do. When the main body socket is further rotated, the main body socket and the fixed socket rotate together so that the first engaging portion of the fixed socket is pushed by the second engaging portion of the main body socket. On the other hand, when the screw is rotated in the loosening direction, the second engagement portion of the main body socket moves away from the first engagement portion of the fixed socket, and only the main body socket rotates with respect to the fixed socket. It moves.

  In patent document 3, a pipe joint is comprised from the 1st joint member and the 2nd joint member, and the 1st joint member is provided with the external threaded connection port part connected to piping at the rear-end part, and in a surrounding wall. The plurality of lead-out holes are formed in a horizontal cylindrical shape formed at intervals in the circumferential direction, and the second joint member is rotatable to the first pipe joint member and can be moved back and forth so as to cover the lead-out holes. From the fitted rotation cylinder part, the outward projection cylinder part provided in the outward projection shape on the rotation cylinder part, and the connection port part extending continuously from the distal end side of the outward projection cylinder part Become.

  Moreover, the fitting part is formed in the rear-end part in the outer peripheral surface of a 1st joint member, and the inner peripheral surface rear-end part of the rotation member of a 2nd joint member, respectively, When the rotation member of the second joint member is moved backward, it can be fitted to each other to prevent the rotation of the rotation cylinder part, while when the rotation member is moved forward, it is displaced forward and backward. Thus, the rotation of the rotating cylinder portion is allowed.

No. 6-3255 Japanese Patent No. 3294830 JP 2003-147817 A

  However, in Patent Document 1, since the connecting pipe is not compatible with other models at all and general parts cannot be used, the contractor must obtain the same parts when performing maintenance or replacement work. , It was inconvenient. Moreover, in patent document 2 and patent document 3, since the socket apparatus and the pipe joint were comprised from several articles | goods, the number of parts increased and it was a factor that manufacturing cost became expensive.

  The present invention has been made paying attention to such problems existing in the prior art. The purpose of the present invention is that the existing connecting pipe can be used as it is, the number of parts is small, and it can be manufactured at low cost. An object of the present invention is to provide a joint member that can be easily rotated when connected to a mixing faucet.

  In the first aspect of the present invention, a flow path through which hot water or water passes is formed, one end of the flow path is connected to a hot water or water pipe disposed on the back side of the wall surface, and the other end is a wall surface. A coupling member connected to a mixing faucet disposed on the front side of the joint, and a joint member for supplying hot water or water from the piping to the mixing faucet, the joint member being a storage chamber into which the coupling tube is inserted A first opening hole into which the main body part is inserted and a second opening hole into which the connecting pipe is inserted, and a concave groove is formed at substantially the center of the inner peripheral surface of the first opening hole. A cover portion and a ring mounted in the concave groove of the first opening hole, and the main body portion has a flange that fits into the first opening hole of the cover portion and a larger diameter than the flange. When the step portion is formed by the diameter portion and the main body portion is inserted into the first opening hole, the rib mounted in the groove of the first opening hole is formed. Grayed is rotatable relative to the body portion of the cover portion by being engaged with the stepped portion of the body portion, the second opening hole of the cover portion in which the connecting pipe is connected.

  According to the joint member of the present invention, since the cover portion is rotatably attached to the main body portion, each of the hot water side and the water side can be obtained by rotating the cover portion even after connecting the connecting pipe to the joint member. It is possible to easily match the pitch of the connecting portion of the connecting pipe with the pitch of the inlet portion of hot water and water formed in the mixing faucet. Further, since the joint member is configured with a small number of parts, it can be manufactured at low cost.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an overall view of a state in which a mixing faucet 4 is fixed to a wall surface 2 of a bathroom 1 using a joint member 14 according to the present invention. The mixing faucet 4 has hot water and water inlet portions 4a, 4b is formed and is fixed to the wall surface 2 via a crank-shaped connecting pipe 8 attached to the inlet portions 4a and 4b. Further, hot water and water supplied to the mixing faucet 4 are mixed to a desired temperature by a valve member 5 provided inside the mixing faucet 4, and the mixed water is discharged from the water discharge pipe 6 or the shower head 7.

  FIG. 2 is a view showing the relationship between the connecting pipe 8 and the joint member 14 of the present invention, and the joint member 14 is composed of a main body portion 15, a cover portion 24 and a ring 28.

  The main body portion 15 has a shape in which a plurality of cylindrical bodies having different outer diameters are combined, and a small-diameter portion 16 having a smaller diameter than the wall hole 3 formed in the wall surface 2 at the center and a male screw 17 on the outer peripheral surface. Is formed. One end of the small-diameter portion 16 is integrally formed with a connection portion 20 connected to a hot water or water pipe 30. The connection portion 20 has a smaller diameter than the small diameter portion 16 and is connected to the pipe 30 on the outer peripheral surface. A male screw 21 is provided. A large-diameter portion 18 having a larger diameter than the small-diameter portion 16 protrudes and is integrally formed at the other end of the small-diameter portion 16, and the large-diameter portion 18 is larger than the wall hole 3 formed in the wall surface 2. A larger diameter flange 19 is integrally formed at the end of the diameter. In addition, a flow path 22 is formed in the body portion 15 so as to penetrate in the axial direction, and the inside extending from the small diameter portion 16 to the flange 19 has a larger diameter than the flow path 22 and will be described later. A storage chamber 23 is formed into which a fixed amount of the inlet 10 formed at one end can be inserted.

  The cover portion 24 has a bowl shape, and a first opening hole 25 having a larger diameter than the flange 19 of the main body portion 15 is formed on the end surface on the large diameter side, and a first opening hole is formed on the end surface on the small diameter side. A second opening hole 25a having a diameter smaller than that of the first opening hole 25a is formed, and a female screw 27 for connecting to the connecting pipe 8 is formed in the inner peripheral surface of the second opening hole 25a so as to penetrate toward the first opening hole 25. ing. Further, an annular groove 26 having a larger diameter than the first opening hole 25 is formed in the approximate center of the first opening hole 25, and a ring 28 is attached to the groove 26.

  The ring 28 is annular and has a slit formed in a part thereof and has an elastic force. When an external force is applied, the ring 28 can be easily reduced in diameter and expanded.

  The connecting pipe 8 is for connecting the pipe 30 and the inlet of the mixing faucet 4 and has been generally used conventionally and has a crank shape. The connecting pipe 8 protrudes from one end of the connecting pipe main body 9, the connecting pipe main body 9, and the inlet 10 into which hot water or water supplied from the pipe 30 is introduced, and the inlet to the other end of the connecting pipe main body 9. An outlet portion 11 that protrudes in the opposite direction to the portion 10 and supplies hot water or water supplied to the connecting pipe 8 to the mixing faucet 4 is integrally formed. A male screw 10 a for connecting to the joint member 14 is provided on the outer periphery of the inlet portion 10. Further, a flow path 12 through which hot water or water passes is formed inside the connecting pipe 8, and a stop cock 13 a that adjusts the flow rate of hot water or water supplied from the pipe 30 in the middle of the flow path 12. In addition, a functional unit 13 including a strainer 13b for removing foreign matter is accommodated. In addition, in addition to a stop cock and a strainer, for example, a check valve for preventing a back flow of hot water or water may be added or only a check valve may be accommodated in the functional unit.

  In order to assemble the joint member 14, the ring 28 is mounted in the groove 26 of the cover portion 24 in advance, and the flange 19 of the main body portion 15 is inserted into the first opening hole 25 of the cover portion 24. When the body portion 15 is inserted into the cover portion 24, the ring 28 mounted in the concave groove 26 of the first opening hole 25 gets over the flange 19 and the step portion 19 a formed by the large diameter portion 18 and the flange 19. The cover part 24 does not easily come off from the main body part 15, and the cover part 24 is rotatable with respect to the main body part 15.

  In the above configuration, in order to attach the mixing faucet 4 to the wall surface 2, the cover part 24 to which the ring 28 is previously attached is attached to the main body part 15 and the joint member 14 is assembled. Then, the large-diameter portion 18 of the main body portion 15 is brought into contact with the wall surface 2, and the joint member 14 is inserted into the wall hole 3 so that the male screws 17 and 21 of the small-diameter portion 16 and the connecting portion 20 protrude on the back side of the wall surface 2. Insert.

  Next, the female screw 29 a of the fixture 29 is screwed into the male screw 17 of the small diameter portion 16, and the wall surface 2 is sandwiched between the large diameter portion 18 and the fixture 29, whereby the joint member 14 is fixed to the wall surface 2. Then, the male screw 21 formed in the connecting portion 20 and the female screw 31 of the pipe 30 are screwed together to connect the joint member 14 and the pipe 30.

  Next, the connecting pipe 8 generally used conventionally is screwed and connected to each joint member 14 on the hot water side or the water side. In this state, the male screw 10a formed on the outer periphery of the inlet portion 10 of the connecting pipe 8 and the female screw 27 formed on the cover portion 24 are screwed together, but in the state where the connection of the connecting pipe 8 is completed, FIG. 2, only a part of the male screw 10 a on the outer periphery of the inlet portion 10 and the female screw 27 of the cover portion 24 are screwed together, and the inlet portion 10 is accommodated in the accommodation chamber 23 of the main body portion 15. It is in a state. At this time, since a fixed amount of the inlet portion is accommodated in the storage chamber of the main body, the amount of protrusion from the wall surface of each connecting pipe is always constant on both the hot water side and the water side, and the wall surface of the mixing faucet The amount of protrusion from is always constant.

  When the cover portion 24 is rotated in either the left or right direction, the joint member 14 is configured such that the cover portion 24 is rotatable with respect to the main body portion 15. It will rotate. Thereafter, the hot water side and water side connecting pipes 8 are connected to the mixing faucet 4, and the pitch of the outlet 11 of each hot water side and water side connecting pipe 8 and the hot water and water of the mixing water faucet 4 are connected. When the pitches of the inlet portions 4a and 4b are different, the position of the outlet portion of the connecting pipe can be adjusted by rotating the cover portion 24 so that both pitches coincide with each other. Connection with the mixing faucet 4 can be performed satisfactorily.

  As described above, according to the joint member of the present invention, since the existing connecting pipe can be used as it is, the contractor does not need to prepare special parts even during maintenance or replacement work. Can work on. Further, since the amount of protrusion from the wall surface is always constant when the connecting pipe is connected to the joint member, the amount of protrusion from the wall surface of the mixing faucet can always be constant. Further, the connecting pipe can be freely rotated even after being connected to the joint member, and can be well connected to the mixing faucet. And since a coupling member is comprised by few parts count, it can be manufactured cheaply.

It is explanatory drawing which shows the state which fixed the mixing faucet to the wall surface using the coupling member of this invention. It is sectional drawing of the state which connected the connecting pipe to the coupling member. It is sectional drawing of the state before connecting a connecting pipe to a coupling member. It is a disassembled perspective view of a coupling member.

Explanation of symbols

4: Mixing faucet 4a: Hot water inlet 4b: Water inlet 8: Connecting pipe 10: Inlet 11: Outlet 14: Joint member 15: Main body 18: Large diameter 19: Flange 19a: Step Part 23: Accommodating chamber 24: Cover part 25: First opening hole 25a: Second opening hole 26: Concave groove 28: Ring 30: Piping

Claims (1)

A flow path through which hot water or water passes is formed, a hot water or water pipe disposed on the back side of the wall surface is connected to one end of the flow path, and a mixed water faucet disposed on the front side of the wall surface at the other end A coupling member that is connected to the coupling pipe and supplies hot water or water from the pipe to the mixing faucet, the coupling member including a main body portion in which a housing chamber into which the coupling pipe is inserted is formed; A cover part having a first opening hole into which the main body part is inserted and a second opening hole into which the connecting pipe is inserted, wherein a concave groove is formed substantially at the center of the inner peripheral surface of the first opening hole; A ring mounted in the groove of the hole, and the main body portion has a stepped portion formed by a flange that fits into the first opening hole of the cover portion and a large-diameter portion that has a smaller diameter than the flange. When the main body portion is inserted into the first opening hole, the ring mounted in the concave groove of the first opening hole is engaged with the step portion of the main body portion. The cover portion is rotatable relative to the body portion by Rukoto, joint member, characterized in that said connection pipe is connected to the second opening hole of the cover portion.

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