JP2013044393A - Piping joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping joint including a strainer which can be installed without requiring a wide space.SOLUTION: A piping joint 1 connects piping connected to water pipes or a boiler and piping connected to faucet instruments. The piping joint 1 includes: an upstream-side join 10 having a water cutoff valve function and connected to the water pipes or the boiler; a downstream-side joint 30 having a check valve function, disposed at a downstream side of the upstream-side joint 10 and connected to the faucet instruments; and a strainer 50 for filtering water or hot water flowing into a duct of the piping joint 1. The downstream-side joint 30 is attached to the upstream-side joint 10, thereby supporting the strainer 50 on the duct of the piping joint 1 within the piping joint 1 while holding the strainer 50 between the upstream-side joint 10 and the downstream-side joint 30. Thus, the upstream-side joint 10, the downstream-side joint 30 and the strainer 50 are configured integrally.

Description

  The present invention relates to a pipe joint technique that includes a strainer and connects a pipe connected to a water pipe or a boiler to a pipe connected to a faucet appliance.

2. Description of the Related Art Conventionally, a technique related to a pipe joint that includes a strainer and connects a pipe connected to a water pipe or a boiler and a pipe connected to a faucet fixture is known.
Such a pipe joint is configured such that water or hot water supplied from a water pipe or boiler flows into the water or hot water flow path of the pipe joint, and the water or hot water is supplied to the faucet device. And such a pipe joint is comprised so that the waste water may be filtered from the water or hot water which flowed into the flow path of the water or hot water of a pipe joint by the strainer.
Such pipe joints include those having a strainer and a stop cock function, and those having a strainer and a check valve function (see Patent Document 1).

JP 2009-36250 A

However, in the pipe joint including such a strainer, the water or hot water flow path is closed during the installation work or the maintenance work such as cleaning or replacement of the strainer. For this reason, a pipe joint having a stop cock function, a pipe joint having a check valve function, and the like are installed around a pipe joint having such a strainer.
In addition, a pipe joint having a reverse valve function is installed downstream of the pipe joint having the strainer and having a stop cock function. A pipe joint having a stop cock function is installed on the upstream side of the pipe joint having the strainer and having a check valve function.

  Thus, in the conventional pipe joint having a strainer, another pipe joint (a pipe joint having a stop cock function and / or a pipe joint having a check valve function) is installed in the periphery. A large space is required to arrange a pipe joint having a strainer.

  This invention is made | formed in view of the above situations, and makes it a subject to provide the pipe joint provided with the strainer which can be installed without requiring a large space.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in Claim 1, it is a pipe joint which connects the pipe connected to a water pipe or a boiler and the pipe connected to a faucet appliance, and has a stop cock function. An upstream joint connected to a pipe to be connected, and a downstream joint having a reverse valve function, disposed on the downstream side of the upstream joint, and connected to a pipe connected to a faucet instrument, A strainer that filters water or hot water that has flowed into a flow path of water or hot water in the pipe joint, and the downstream joint is attached to the upstream joint, whereby the upstream joint and the downstream side The strainer is supported on the water or hot water flow path of the pipe joint in the pipe joint so as to be sandwiched between the joints, and the upstream joint, the downstream joint, and the strainer are integrally configured. Things A.

  According to a second aspect of the present invention, the downstream joint is configured to be attachable to or detachable from the upstream joint.

  The strainer support according to claim 3, wherein the downstream joint is formed in a pipe joint by being attached to the upstream joint, and the strainer is supported by arranging an edge portion of the strainer. A room is provided.

  As effects of the present invention, the following effects can be obtained.

  That is, according to the present invention, the pipe joint including the strainer can be installed without requiring a large space.

The perspective view which showed the whole structure of the piping joint which concerns on embodiment of this invention. The front view which showed the state which decomposed | disassembled the piping coupling which concerns on embodiment of this invention into the upstream coupling, the downstream coupling, and the strainer. The front view which showed the whole structure of the piping joint which concerns on embodiment of this invention. FIG. Similarly bottom view. Similarly left side view. Similarly right side view. The top view longitudinal cross-sectional view of the piping joint which concerns on embodiment of this invention. The expanded sectional view showing the state where the check valve of the downstream member in the piping joint concerning the embodiment of the present invention moves. The front view which showed the quick fastener. The side view which showed the quick fastener. The front view which showed the state which mounted | wore the quick fastener with the piping joint which concerns on embodiment of this invention. The perspective view which showed the whole structure of the piping joint which concerns on embodiment of this invention. Similarly front view. Similarly rear view. FIG. Similarly bottom view. Similarly left side view. Similarly right side view. Similarly, a plan view longitudinal sectional view. The front view which showed the state which decomposed | disassembled the piping coupling which concerns on embodiment of this invention into the upstream coupling, the downstream coupling, and the strainer.

  Next, the pipe joint 1 according to the embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 1 to 8, the pipe joint 1 includes a strainer 50, and connects a pipe connected to a water pipe or a boiler and a pipe connected to a faucet device. The water faucet device to which the pipe is connected includes, for example, a thermo stud.
The pipe joint 1 is configured in a substantially cylindrical shape as a whole. The pipe joint 1 configured in a substantially cylindrical shape is configured as a water or hot water flow path of the pipe joint 1 (hereinafter referred to as “flow path of the pipe joint 1”). The pipe joint 1 has the flow path of the pipe joint 1 therein.
The pipe joint 1 is configured such that water or hot water supplied from a water pipe or a boiler flows into the flow path of the pipe joint 1 from the upstream opening 1a via a pipe connected to the water pipe or the boiler.
The pipe joint 1 is configured such that water or hot water that has flowed into the flow path of the pipe joint 1 flows out from the opening 1b on the downstream side and is supplied to the faucet appliance via a pipe connected to the faucet appliance. Is done.

  The strainer 50 in the pipe joint 1 filters water or hot water flowing into the flow path of the pipe joint 1 and removes dust from the water or hot water. The strainer 50 is disposed in the flow path of the pipe joint 1 in the pipe joint 1 (on the flow path of the pipe joint 1).

The pipe joint 1 includes an upstream joint 10 and a downstream joint 30.
The pipe joint 1 includes an upstream joint 10, a downstream joint 30, and a strainer 50 that are integrally formed.

The upstream joint 10 in the pipe joint 1 is disposed on the upstream side of the downstream joint 30.
The upstream side joint 10 is configured to have a stop cock function. The stop cock function of the upstream joint 10 is to cause the water or hot water flowing into the flow path of the pipe joint 1 from the upstream opening 1a to flow out of the downstream opening 1b by opening the flow path of the pipe joint 1. Alternatively, the water or hot water is prevented from flowing out downstream by closing the flow path of the pipe joint 1.
The upstream side joint 10 is configured to open and close the flow path of the pipe joint 1 with a valve body.

The downstream joint 30 in the pipe joint 1 is disposed on the downstream side of the upstream joint 10.
The downstream side joint 30 is configured to be attachable to or detachable from the upstream side joint 10.
The downstream joint 30 has a check valve function. The check valve function of the downstream side joint 30 is to open the flow path of the pipe joint 1 to cause water or hot water flowing into the flow path of the pipe joint 1 to flow out of the downstream side opening 1b, or By closing the flow path, water or hot water is prevented from flowing backward from the downstream side to the upstream side.
The downstream side joint 30 is configured so that the valve body 32 opens and closes the flow path of the pipe joint 1.

  The upstream joint 10 in the pipe joint 1 includes an upstream cylindrical member 20, a ball valve 13, a valve shaft 15, and a handle 16.

  The upstream tubular member 20 of the upstream joint 10 in the pipe joint 1 is configured in a substantially cylindrical shape. The upstream cylindrical member 20 of the upstream joint 10 configured in a substantially cylindrical shape is configured as a part of the flow path of the pipe joint 1. The upstream tubular member 20 of the upstream joint 10 has a part of the flow path of the pipe joint 1 inside the upstream tubular member 20.

The upstream cylindrical member 20 of the upstream joint 10 in the pipe joint 1 is configured to be connectable to a pipe connected to a water pipe or a boiler at the upstream side portion 20a.
The upstream side portion 20a of the upstream side tubular member 20 in the upstream side joint 10 is configured so that the outer diameter thereof is smaller than the outer diameters of the other portions (the midway portion 20b and the downstream side portion 20c). A male screw is formed on the outer peripheral surface of the upstream side portion 20 a of the upstream side cylinder member 20 in the upstream side joint 10.
The upstream cylindrical member is formed by screwing a male screw of the upstream side portion 20a of the upstream cylindrical member 20 in the upstream joint 10 and a female screw (not shown) provided in a pipe connected to a water pipe or a boiler. A pipe connected to a water pipe or a boiler is connected to the upstream side portion 20a of the 20.
By connecting the pipe connected to the water pipe or the boiler in this way, the upstream side cylinder member 20 in the upstream side joint 10 is connected to the water pipe or the boiler with water or hot water supplied from the water pipe or the boiler. It is comprised so that it may flow into the flow path (inside the upstream cylinder member 20) of the pipe joint 1 from the opening 1a on the upstream side through the pipe.

The upstream side tubular member 20 of the upstream side joint 10 in the pipe joint 1 is configured so that the upstream side portion 40a of the downstream side tubular member 40 in the downstream side joint 30 can be connected to the downstream side portion 20c.
The downstream side portion 20c of the upstream side tubular member 20 of the upstream side joint 10 is configured by forming a mounting groove 21 in which the quick fastener 60 is mounted on the outer periphery thereof.

The upstream tubular member 20 of the upstream joint 10 in the pipe joint 1 is configured such that a ball valve 13 (valve element) can be disposed in the midway portion 20b.
The upstream side cylinder member 20 of the upstream side joint 10 includes a protruding portion 22 that protrudes upward from the upper surface of the midway portion 20b.
A valve shaft hole 23 in which a part of the valve shaft 15 is disposed is formed in the protruding portion 22 of the upstream cylindrical member 20 of the upstream joint 10.
The valve shaft hole 23 of the upstream cylinder member 20 of the upstream joint 10 is formed so as to penetrate the upstream cylinder member 20 from the upper end of the protrusion 22 along the axis of the protrusion 22 (in the vertical direction). Is done.

The upstream tubular member 20 of the upstream joint 10 in the pipe joint 1 is configured to have a stepped portion 24 at the boundary between the midway portion 20b and the downstream portion 20c in the upstream tubular member 20.
The step portion 24 of the upstream tubular member 20 of the upstream joint 10 is formed in the upstream tubular member 20 by forming the inner diameter of the downstream portion 20c of the upstream tubular member 20 larger than the inner diameter of the midway portion 20b. It is composed of steps to be made.

The ball valve 13 of the upstream joint 10 in the pipe joint 1 is configured as a valve body of the upstream joint 10. The ball valve 13 of the upstream joint 10 is disposed in the midway portion 20 b of the upstream cylindrical member 20.
The upstream joint 10 is configured to be able to open and close the flow path of the pipe joint 1 by rotating the ball valve 13.

The ball valve 13 of the upstream joint 10 in the pipe joint 1 is configured by forming a through hole 14 in a substantially spherical member.
The inner diameter of the through hole 14 of the ball valve 13 in the upstream joint 10 is configured to be substantially the same as the inner diameter of the upstream portion 20 a of the upstream cylindrical member 20. The through hole 14 of the ball valve 13 in the upstream joint 10 is configured as a part of the flow path of the joint 1.
The upstream joint 10 opens the flow path of the pipe joint 1 by communicating the through hole 14 of the ball valve 13 with the upstream side portion 20a and the downstream side portion 20c of the upstream cylindrical member 20. Configured.
Further, the upstream side joint 10 rotates the ball valve 13 by 90 degrees from such a state, and shuts off the inside of the upstream side portion 20a and the inside of the downstream side portion 20c at the outer surface portion excluding the through hole 14 of the ball valve 13. By this, it is comprised so that the flow path of the piping joint 1 may be closed.

The valve shaft 15 of the upstream joint 10 in the pipe joint 1 is disposed at the lower portion thereof in the valve shaft hole 23 of the upstream cylinder member 20, and the upper end thereof is an opening above the valve shaft hole 23 in the upstream cylinder member 20. It arrange | positions so that it may protrude upward from.
The valve shaft 15 of the upstream joint 10 is fixed to the ball valve 13 with its lower end connected to the upper end of the ball valve 13. A handle 16 is provided at the upper end of the valve shaft 15 of the upstream joint 10. The ball valve 13, the valve shaft 15, and the handle 16 of the upstream joint 10 are configured to be integrally rotatable about the axis of the valve shaft 15.
In this way, the upstream joint 10 is configured to open and close the flow path of the pipe joint 1 by rotating the valve shaft 15 and the ball valve 13 by rotating the handle 16.
In this way, the upstream joint 10 is configured to have a water stop cock function.

  The downstream side joint 30 in the pipe joint 1 includes a downstream side tubular member 40, a valve body 32, and a support member 33.

  The downstream side cylinder member 40 of the downstream side joint 30 in the pipe joint 1 is configured in a substantially cylindrical shape. The inside of the downstream side tubular member 40 of the downstream side joint 30 configured in the substantially cylindrical shape is configured as a part of the flow path of the pipe joint 1. The downstream side cylinder member 40 of the downstream side joint 30 has a part of the flow path of the pipe joint 1 inside the downstream side cylinder member 40.

The downstream side tubular member 40 of the downstream side joint 30 in the pipe joint 1 is configured to be connectable to the upstream side portion 40 a of the downstream side portion 20 c of the upstream side tubular member 20 of the upstream side joint 10.
The outer diameter of the upstream side portion 40a of the downstream side tubular member 40 in the downstream side joint 30 is configured to be smaller than the outer diameter of the midway portion 40b. The upstream side portion 40 a of the downstream side tubular member 40 in the downstream side joint 30 is configured so that the outer diameter thereof is substantially the same as the inner diameter of the downstream side portion 20 c of the upstream side tubular member 20 in the upstream side joint 10. It is comprised so that it can be inserted in the downstream part 20c in the upstream cylinder member 20 of this.

In the pipe joint 1, the upstream side portion 40 a of the downstream side tubular member 40 in the downstream side joint 30 is fitted into the downstream side portion 20 c of the upstream side tubular member 20 in the upstream side joint 10, whereby the downstream side in the downstream side joint 30. The downstream side portion 20 c of the upstream side cylindrical member 20 in the upstream side joint 10 is connected to the upstream side portion 40 a of the cylindrical member 40.
And the downstream side joint 30 inserts the upstream side part 40a of the downstream side cylindrical member 40 in the downstream side joint 30 into the downstream side part 20c of the upstream side cylindrical member 20 in the upstream side joint 10, thereby the upstream side joint 10. Configured to be mounted on. In a state where the downstream side joint 30 is attached to the upstream side joint 10, the inside of the downstream side tubular member 40 of the downstream side joint 30 and the inside of the upstream side tubular member 20 of the upstream side joint 10 communicate with each other. By attaching the downstream joint 30 to the upstream joint 10 in this way, the flow path of the pipe joint 1 in the downstream joint 30 and the flow path of the pipe joint 1 in the upstream joint 10 are continuous, and the upstream side Water or hot water that has flowed into the joint 10 will flow into the downstream joint 30 (inside the downstream cylindrical member 40 of the downstream joint 30).
Further, the downstream side joint 30 is connected to the upstream side portion 40a of the downstream side tubular member 40 in the downstream side joint 30 in such a state by pulling it out from the downstream side portion 20c of the upstream side tubular member 20 in the upstream side joint 10. It is configured to be removed from the side joint 10 (see FIG. 2).

  An annular O-ring arrangement groove 42 is formed on the outer peripheral surface of the upstream side portion 40 a of the downstream side tubular member 40 in the downstream side joint 30. The O-ring 31 is arranged in the O-ring arrangement groove 42 of the downstream side cylinder member 40 in the downstream side joint 30.

The downstream side tubular member 40 of the downstream side joint 30 in the pipe joint 1 is configured to be connectable to a pipe connected to the faucet device on the downstream side.
The downstream side portion 40c of the downstream side tubular member 40 of the downstream side joint 30 is configured such that its outer diameter is smaller than the outer diameter of the midway portion 40b. A male screw is formed on the outer peripheral surface of the downstream side portion 20 c of the upstream side cylinder member 20 in the upstream side joint 10.
By screwing a male screw (not shown) provided in a pipe connected to the faucet device with a male screw of the upstream side portion 40a of the downstream side cylindrical member 40 in the downstream side joint 30, the downstream side cylindrical member 40 is engaged. A pipe connected to the faucet device is connected to the downstream side portion 40c.
By connecting the pipe connected to the faucet device in this way, the downstream side tubular member 40 in the downstream side joint 30 is water or hot water that has flowed into the flow path of the pipe joint 1 (in the downstream side tubular member 40). Is configured to be supplied to the faucet device via a pipe connected to the faucet device.

The downstream side tubular member 40 of the downstream side joint 30 in the pipe joint 1 is configured such that the valve body 32 and the support member 33 can be disposed in the midway portion 40b.
The downstream side portion 40c of the downstream side tubular member 40 of the downstream side joint 30 is configured by forming a mounting groove 31 in which the quick fastener 60 is mounted on the outer periphery thereof.

The downstream side tubular member 40 of the downstream side joint 30 in the pipe joint 1 is configured to have a valve seat 43 at a boundary portion between the midway part 40 b and the upstream side part 40 a in the downstream side tubular member 40.
The valve seat 43 of the downstream side cylinder member 40 of the downstream side joint 30 is formed in the downstream side cylinder member 40 by forming the inner diameter portion 40b of the downstream side cylinder member 40 larger than the inner diameter of the upstream side portion 40a. It is composed of steps to be made.

The support member 33 of the downstream joint 30 in the pipe joint 1 supports the valve body 32. The support member 33 of the downstream side joint 30 has a support hole 34 in which a part of the valve body 32 is inserted and supports the valve body 32.
The support member 33 of the downstream side joint 30 is fixed in the midway part 40 b of the downstream side cylinder member 40.

The valve body 32 of the downstream side joint 30 in the pipe joint 1 is supported by the support member 33 and disposed in the midway part 40 b of the downstream side cylinder member 40. The valve body 32 of the downstream side joint 30 is configured to be movable between the upstream side and the downstream side while being supported by the support member 33.
The valve body 32 of the downstream joint 30 is biased upstream by a spring 35.
The valve body 32 of the downstream side joint 30 is attached to the upstream side by a spring 35 when no water flow from the upstream side to the downstream side occurs in the flow path of the pipe joint 1 (in the downstream side cylinder member 40 of the downstream side joint 30). It is configured to be seated on the valve seat 43 and close the flow path of the pipe joint 1.
The valve body 32 of the downstream side joint 30 resists the urging force of the spring 35 when a water flow from the upstream side to the downstream side occurs in the flow path of the pipe joint 1 (in the downstream side tubular member 40 of the downstream side joint 30). Thus, it moves to the downstream side and is separated from the valve seat 43 to open the flow path of the pipe joint 1 (see FIG. 9).
In this way, the downstream side joint 30 is configured to have a check valve function for preventing water or hot water from flowing back from the downstream side to the upstream side in the pipe joint 1.

In the pipe joint 1, the upstream side portion 40 a of the downstream side tubular member 40 in the downstream side joint 30 is fitted and inserted into the downstream side portion 20 c of the upstream side tubular member 20 in the upstream side joint 10 (the downstream side joint 30 is upstream). In the state of being attached to the joint 10), the upstream side end of the upstream side portion 40 a of the downstream side cylindrical member 40 is configured not to contact the stepped portion 24 of the upstream side cylindrical member 20.
The pipe joint 1 is a state in which the downstream joint 30 is attached to the upstream joint 10, and the upstream end of the upstream portion 40 a of the downstream tubular member 40 in the downstream joint 30 and the upstream tubular member in the upstream joint 10. A predetermined gap is formed between the twenty step portions 24.
The upstream side portion 40 a of the downstream side tubular member 40 in the downstream side joint 30 is between the upstream end of the upstream side portion 40 a of the downstream side tubular member 40 and the step portion 24 of the upstream side tubular member 20 in the upstream side joint 10. The length in the axial direction is formed to be shorter than the length in the axial direction of the downstream side portion 20c of the upstream side cylinder member 20 so that a predetermined gap is formed.

The pipe joint 1 includes a strainer support chamber 1 c that supports the strainer 50 on the flow path of the pipe joint 1.
A predetermined gap (space) between the upstream end of the upstream side portion 40a of the downstream side tubular member 40 in the downstream side joint 30 and the step portion 24 of the upstream side tubular member 20 in the upstream side joint 10 is a strainer support chamber. 1c. That is, the strainer support chamber 1 c is formed in the pipe joint 1 by attaching the downstream side joint 30 to the upstream side joint 10.
The strainer support chamber 1 c is disposed between the valve body 32 (ball valve 13) of the upstream joint 10 and the valve body 32 of the downstream joint 30 in the flow path of the pipe joint 1.

The strainer 50 in the pipe joint 1 is configured by providing an annular frame member 51 on the periphery of the mesh member 52.
The mesh member 52 of the strainer 50 filters water or hot water flowing into the flow path of the pipe joint 1 and removes dust from the water or hot water, and is configured in a mesh shape. The frame member 51 of the strainer 50 constitutes an edge of the strainer 50.
The strainer 50 is configured to be supported by the strainer support chamber 1c when the frame member 51 is disposed in the strainer support chamber 1c.
The outer diameter of the frame member 51 of the strainer 50 is configured to be larger than the inner diameter of the midway portion 20 b of the upstream cylindrical member 20 in the upstream joint 10. The frame member 51 of the strainer 50 has a thickness between the upstream end of the upstream side portion 40 a of the downstream side tubular member 40 in the downstream side joint 30 and the step portion 24 of the upstream side cylindrical member 20 in the upstream side joint 10. It is formed smaller than a predetermined gap.

In the pipe joint 1 configured as described above, from the opening of the downstream side part 20c of the upstream side cylinder member 20 in the upstream side joint 10, the inside of the downstream side part 20c of the upstream side cylinder member 20 (flow path of the pipe joint 1). The strainer 50 is disposed in Then, the upstream side portion 40 a of the downstream side tubular member 40 in the downstream side joint 30 is fitted into the downstream side portion 20 c of the upstream side tubular member 20 in the upstream side joint 10, and the downstream side joint 30 is attached to the upstream side joint 10.
By attaching the downstream side joint 30 to the upstream side joint 10 in this way, the frame member 51 (the edge of the strainer 50) of the strainer 50 is disposed in the strainer support chamber 1c, and the strainer support chamber 1c (flow of the pipe joint 1). A strainer 50 is supported on the road). Further, by attaching the downstream side joint 30 to the upstream side joint 10 in this way, the strainer 50 is placed in the pipe joint 1 (on the flow path of the pipe joint 1) so as to be sandwiched between the upstream side joint 10 and the downstream side joint 30. Supported.

As described above, the pipe joint 1 has the flow of the pipe joint 1 in the pipe joint 1 so that the downstream joint 30 is attached to the upstream joint 10 so as to be sandwiched between the upstream joint and the downstream joint. A strainer 50 is supported on the road, and the upstream joint 10, the downstream joint 30, and the strainer 50 are integrally formed.
Thus, since the pipe joint 1 includes the strainer 50 and has a stop cock function and a check valve function, the pipe joint 1 has another pipe joint (a pipe joint having a stop cock function, It is not necessary to install a pipe joint having a check valve function.
Therefore, according to the pipe joint 1, it can be installed without requiring a large space.

The downstream joint 30 in the pipe joint 1 is inserted into the downstream side part 20c of the upstream side cylinder member 20 in the upstream side joint 10 by inserting the upstream side part 40a of the downstream side cylinder member 40 in the downstream side joint 30 into the upstream side joint 10. Mounted on. Further, the downstream side joint 30 in the pipe joint 1 pulls the upstream side part 40a of the downstream side cylindrical member 40 in the downstream side joint 30 in such a state from the downstream side part 20c of the upstream side cylindrical member 20 in the upstream side joint 10. Thus, the upstream joint 10 is detached from the attachment.
In this way, the downstream joint 30 in the pipe joint 1 is configured to be attachable to or detachable from the upstream joint 10.
For this reason, according to the pipe joint 1, even if the upstream side joint 10, the upstream side joint 10 and the strainer 50 are configured integrally, connection work of the pipe joint 1 to the pipe (installation work of the pipe joint 1). Or, maintenance work in the pipe joint 1 such as cleaning or replacement of the strainer 50 can be easily performed.

The pipe joint 1 is formed in the pipe joint 1 by attaching the downstream side joint 30 to the upstream side joint 10, and the strainer that supports the strainer 50 by arranging the edge of the strainer 50. A support chamber 1c is provided.
In this way, in the pipe joint 1, the downstream joint 30 is attached to the upstream joint 10, and the frame member 51 (the edge of the strainer 50) of the strainer 50 is disposed in the strainer support chamber 1c, and the strainer 50 is placed in the strainer support chamber 1c. To support.
Thus, in the pipe joint 1, the strainer 50 can be easily arranged in the flow path of the pipe joint 1.
Therefore, according to the pipe joint 1, the upstream joint 10, the upstream joint 10, and the strainer 50 that are integrally formed can be realized with a simple structure.

  The upstream tubular member 20 of the upstream joint 10 in the pipe joint 1 includes an upstream tubular member main body 25, a joint connecting member 26, and a valve body support member 27.

  The upstream side cylinder member main body 25 of the upstream side cylinder member 20 of the upstream side joint 10 in the pipe joint 1 constitutes an upstream side part 20 a and a midway part 20 b in the upstream side cylinder member 20. That is, the upstream side cylinder member body 25 of the upstream side cylinder member 20 is configured to be connectable to a pipe connected to a water pipe or a boiler, and is configured to be capable of disposing the ball valve 13 (valve element) therein, and to protrude 22 is configured.

  The valve body support member 27 of the upstream tubular member 20 of the upstream joint 10 in the pipe joint 1 supports the ball valve 13 and is disposed in the upstream tubular member main body 25.

The joint connecting member 26 of the upstream tubular member 20 of the upstream joint 10 in the pipe joint 1 constitutes the downstream side portion 20 c of the upstream tubular member 20. That is, the joint connecting member 26 of the upstream side tubular member 20 is configured to be able to connect the upstream side portion 20a of the downstream side tubular member 40 in the downstream side joint 30, and the mounting groove 21 in which the quick fastener 60 is mounted is formed. Composed.
The joint connecting member 26 of the upstream side cylinder member 20 is configured to have a stepped portion 24 therein. The joint connecting member 26 of the upstream side cylinder member 20 is fixed to the upstream side cylinder member main body 25 by fitting the upstream side thereof to the downstream side of the upstream side cylinder member main body 25.

  The downstream side cylinder member 40 of the downstream side joint 30 in the pipe joint 1 is configured by a downstream side cylinder member main body 44 and a pipe connection member 45.

  The downstream side cylinder member main body 44 of the downstream side cylinder member 40 of the downstream side joint 30 in the pipe joint 1 constitutes an upstream side part 40 a and a midway part 40 b of the downstream side cylinder member 40. That is, the downstream side cylinder member main body 44 of the downstream side cylinder member 40 is configured to be connectable to the downstream side portion 20c of the upstream side cylinder member 20 in the upstream side joint 10, and the valve body 32 and the support member 33 are disposed therein. The mounting groove 31 which has the valve seat 43 in the inside and in which the quick fastener 60 is mounted is formed.

  The pipe connection member 45 of the downstream side tubular member 40 of the downstream side joint 30 in the pipe joint 1 constitutes the downstream side portion 40 c of the downstream side tubular member 40. That is, the pipe connection member 45 of the downstream side cylinder member 40 is configured to be connectable to a pipe connected to the faucet device. The upstream side of the pipe connecting member 45 of the downstream side cylinder member 40 is fitted into the downstream side of the downstream side cylinder member main body 44 and is fixed to the downstream side cylinder member main body 44.

The pipe joint 1 may be provided with a quick fastener 60 in the mounting groove 21 of the upstream cylindrical member 20 in the upstream joint 10 and the downstream cylindrical member 40 mounting groove 31 in the downstream joint 30 (from FIG. 10). (See FIG. 12). In this way, by attaching the quick fastener 60 to the pipe joint 1, the quick fastener 60 is engaged with the attachment groove 21 and the downstream cylinder member 40 attachment groove 31 of the upstream cylinder member 20, and the upstream cylinder member 20. The upstream side portion 40a of the downstream side cylindrical member 40 is prevented from coming off from the downstream side portion 20c of the downstream side.
Moreover, you may comprise the upstream part 20a of the upstream cylinder member 20 of the upstream coupling 10 in the piping joint 1 with the cap nut 28 in which an internal thread is formed (refer FIGS. 13-21). At this time, the female screw of the cap nut 28 of the upstream side portion 20a of the upstream side tubular member 20 in the upstream side joint 10 and the male screw (not shown) provided in the pipe connected to the water pipe or the boiler are screwed together. By this, the pipe connected to a water pipe or a boiler is connected to the upstream part 20a of the upstream cylinder member 20.

1 Joint 10 Upstream Joint 30 Downstream Joint 50 Strainer

Claims (3)

A pipe joint that connects a pipe connected to a water pipe or boiler and a pipe connected to a faucet appliance,
An upstream joint that has a stop cock function and is connected to a pipe connected to a water pipe or a boiler;
A downstream joint having a reverse valve function, disposed on the downstream side of the upstream joint, and connected to a pipe connected to the faucet device;
A strainer for filtering water or hot water flowing into the water or hot water flow path in the pipe joint,
By attaching the downstream joint to the upstream joint, the strainer is placed on the water or hot water flow path of the pipe joint in the pipe joint so as to be sandwiched between the upstream joint and the downstream joint. Supported, the upstream joint, the downstream joint and the strainer are integrally configured,
Piping joint. The downstream joint is configured to be attachable to or detachable from the upstream joint.
The piping joint according to claim 1. The downstream joint is formed in the pipe joint by being attached to the upstream joint, and includes a strainer support chamber that supports the strainer by arranging an edge of the strainer.
The piping joint according to claim 1 or 2.

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