JP2003201723A - Water supply box and its pipe connection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability of a water supply box and the interchangeability of the box and implements installed in the box and facilitating the connection of branch metal fittings on the way of existing resin pipes. <P>SOLUTION: In the water supply box having a resin tube, a resin tube joint connected to the resin tube, an implement detachably connected to the resin tube joint, and a box covering these joint parts, the internal diameter of the resin tube insertion inlet of the box is larger than the external diameter of the resin tube joint. And further, a resin tube holder holding the resin tube inserted in the inlet of the resin tube insertion opening is provided. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply box for a hot water supply system and a pipe connection method for the same.

[0002]

2. Description of the Related Art FIG. 12 shows a conventional water supply box of a hot water supply system using a flexible resin pipe. The water supply box shown in FIG. 12 is an indoor wall embedded water faucet in which a connection portion 24 between the flexible resin pipe 8 and the appliance 25 is arranged in a box 27. The resin pipe 8 was taken into the box 27 from the resin pipe insertion port 37 provided below the box 27, the resin pipe joint 9 was connected, and then the instrument 25 was connected to the resin pipe joint 9. Then, the mounting frame 3 in which the opening of the box 27 facing the indoor side is mounted so as to sandwich the wall board 29.
It is covered with a cover 26 via 6. Further, a water discharge part 25a and a flow rate adjusting handle 25b are projected from the cover 26. Then, by operating the flow rate adjusting handle 25b, water can be supplied from the water discharger 25a.

Next, the construction procedure for connecting the resin pipe 8 and the device 25 in this water supply box will be described in detail below. The plumbing contractor screws the box 27 to the pillars 31 (studs) of the building installed by the construction contractor. Then, the resin pipe 8 is inserted into the box 27 to connect the resin pipe 8 and the resin pipe joint 9. Then, it is confirmed whether or not the resin pipe joint 9 and the resin pipe 8 are surely connected to each other and the problem of water leakage does not occur. Specifically, by installing a lid (not shown) for inspection on the device connection side of the resin pipe joint 9 and applying water pressure to this pipe to check the fluctuation of this water pressure, it is determined whether or not there is water leakage. To inspect. As a result of the inspection, it is confirmed that there is no abnormality, and the rubber member packing 28 is attached to the resin pipe 8 so as to cover the resin pipe insertion port 37, and the space between the resin pipe 8 and the box 27 is sealed. Then, after the builder on the building side adheres the wall board 29, the builder on the piping side fits and connects the appliance 25 and the resin pipe joint 9,
Furthermore, fasten it with quick fasteners 5 so that this fitting will not come out. After that, the device 25 is screwed to the box 27,
The mounting frame 36, the cover 26, etc. are mounted. In addition, packings 33, 34, and 35 made of an elastic body are interposed between the mounting frame 36 and the cover 26. As described above, the construction range of the contractor on the piping side is different from that of the contractor on the building side, and therefore, it is an indirect construction.

The reason for connecting the resin pipe joint 9 to the resin pipe 8 after inserting the resin pipe 8 into the resin pipe insertion opening 37 of the box 27 will be described below. The first reason is that it is necessary to hold a guide pipe (not shown) in the resin pipe insertion opening 37 located below the box 27.
This is because it cannot be increased. Therefore, in the conventional box 27, since the resin pipe joint 8 has a larger outer shape than the resin pipe insertion port 37, the resin pipe joint 8 is inserted into the resin pipe insertion port 37 if the resin pipe joint 8 is connected to the resin pipe 8 in advance. You cannot do it.

The second reason is that even if the guide tube is not used, if the resin tube insertion opening 37 of the box 27 is enlarged, it becomes difficult for the packing 28 to keep the box 27 and the resin tube 8 airtight. As shown in FIG. 13, when the resin pipe 8 is fixed to the column 31 at a position displaced in the lateral direction in the middle of the pipe,
A force is also applied to the resin pipe 8 located in the resin pipe insertion port 37 in the radial direction of the resin pipe 8, and the axial center of the resin pipe 8 is displaced, so that the contact surface between the packing 28 and the resin pipe 8 and the packing cutting portion 32.
There may be a case where there is a gap and the airtightness cannot be maintained. Further, since the resin pipe 8 is sold in rolls in units of several tens of meters, the roll-like bending habit remains during construction, and if the resin pipe 8 is fixed straight against it, the bending habit described above will result. Similarly, a force is applied in the radial direction of the resin pipe 8, and there is a possibility that the airtightness between the box 27 and the resin pipe 8 due to the packing 28 cannot be maintained.

Here, the shape of the packing 28 is shown in FIG. In FIG. 14, the packing 28 has a hole 32a formed in the center so as to closely surround the resin tube 8. After the resin pipe joint 9 is connected to the resin pipe 8, a cut portion 32 is provided between the inner and outer surfaces in one direction so that the packing 28 can be attached. That is, the packing 28 is fitted between the box 27 and the resin pipe 8 so as to wind around the resin pipe 8.

By the way, as described above, the space between the cover 26, the box 27 and other members is covered with the elastic packing 28.
The reason is as follows. (1) It is necessary to maintain airtightness between both sides (front and back) of the mounting wall surface. Especially in the winter, the room is warmed by heating for a long time, and the air becomes moist.
The temperature on the back side of the wall (the back side of the box 27) is almost the same as the low temperature outside air. Therefore, especially when the air is not kept airtight between the box 27 and the wall, and when air flows from the room (wall surface) to the back of the wall through the gap between the mounting portions of the box 27 and the wall, the room air originally comes out inside the wall. Moisture that has formed may condense. Therefore, it is preferable to keep the airtightness so that the air in the room does not flow to the back side of the wall so that dew condensation does not occur on the back side of the wall as much as possible. Further, if the airtightness is not maintained, the heating efficiency will be reduced, which is also a problem from the viewpoint of energy saving. (2) It is necessary to maintain watertightness between both sides (front and back) of the mounting wall surface. The resin pipe 8 and the resin pipe joint 9 are currently constructed at the construction site. For this reason, due to poor construction, resin pipe 8
Even if water leaks from the connection between the resin pipe joint 9 and the resin pipe joint 9, it is necessary to prevent the leak of water from flowing into the back side of the wall and damaging the building body. Therefore, it is necessary to maintain the watertightness between the mounting wall surface and the box and the watertightness of the portion where the resin pipe is inserted into the box.

Next, FIGS. 15 to 19 show the structure of a header box which is another form of the water supply box in the conventional water supply / hot water supply system using a flexible resin pipe. This header box is a header 4 that branches a plurality of resin pipes 8.
3A is stored in the box 39. 15 is an external perspective view, FIG. 16 is a perspective view with the cover 40 removed, and FIG.
7 is a top view showing the position of the foundation in the installed state. As shown in FIG. 17, the box 39 is fixed to the foundation 57 of the house with bolts 58. At that time, the guide pipe connecting portion 59 of the box 39 is formed so as to project to the indoor side.
7 is arranged in a pre-opened portion (basic opening portion).

The inside of the header box will be described below with reference to FIG. FIG. 16 shows a state before connecting the resin pipe 8 and the guide pipe 10. This header box includes a box 39, a cover 40, a water supply connection port 41, a pressure reducing valve 42 for adjusting the inflowing water to a constant pressure, a header 43A, a water supply / hot water supply resin pipe connection port 43, a guide pipe connection port 44, and a water heater. It is composed of a water supply port 45 and a hot water inlet 46 from the water heater. At least the pressure reducing valve 42, the header 43A, and the water / hot water supply resin pipe connection port 43 are provided in the box 39.
And covered by the cover 40.

Next, a procedure for connecting the resin pipe 8 which is a water supply pipe and a hot water supply pipe to the header 43A arranged in the header box will be described below. After the box 39 is installed on the foundation 57, the guide pipe 47 is connected to the guide pipe connection port 44 from the indoor side as shown in FIG. Although the detailed shape of the guide pipe connection port 44 is not shown, it has a retaining ring so that when the guide pipe 47 is inserted into the guide pipe connection port 44, it does not come off. next,
With the cover 40 removed, place the resin pipe 8 in the box 3
9 Insert the guide tube connecting port 44 on the inner side into the guide tube 47. FIG. 19 is a diagram in which the resin pipe 8 is about to be inserted. Here, 48 is a jig for facilitating the insertion of the resin pipe 8 into the guide pipe 47. Further, the box 27 from the box 39 to the end device side (including the water supply box described above)
The resin pipe 8 is inserted using the guide pipe 47 laid up to (plurality of arrangement). In addition, after connecting the resin pipe joint 9 to the end portion of the resin pipe 8 inserted in the box 27 of the water supply box on the end device side, the length of the resin pipe 8 on the header box side (the length from the water supply box to the header box) ) Is adjusted, the end of the resin pipe 8 on the header box side is cut, the resin pipe joint 9 is connected to the resin pipe 8 in the box 39, and the resin pipe joint 9 is determined for the water supply and hot water supply pipe connection port 43. Connected to the specified position. After all the necessary pipe connections are completed, as described above, the resin pipe joint 9 on each water supply box side
Cover all of them with a lid (not shown) for water leak inspection and conduct a water leak inspection.

As described above, after connecting the guide pipe 47 to the guide pipe connection port 44, the resin pipe 8 is inserted to connect the resin pipe joint 9 to the resin pipe insertion port 37 of the water supply box.
Similarly to the above, the guide pipe connection port 44 needs to hold the guide pipe 47, so that the inner diameter of the guide pipe connection port 44 cannot be increased. Therefore, after inserting the resin pipe 8 into the guide pipe 47 in advance and further connecting the resin pipe joint 9 to the resin pipe 8, the resin pipe joint 9 was connected to the guide pipe connection port 44 from the indoor side. The resin tube 8 cannot be inserted.

[0012]

As described above, the structure of the conventional water supply box for connecting the resin pipe joint 9 after inserting the resin pipe 8 into the boxes 27 and 39 has the following problems. (1) Regarding the connection of the resin pipe joint 9 to the resin pipe after inserting the resin pipe into the box, it is difficult to secure a certain quality. The reason is that even though it is a flexible resin pipe, the resin pipe inserted into the box has almost no flexibility (there is almost no flexibility in a short span), and the resin pipe can be pulled out from the box. This is because it is not easy to attach the resin pipe joint to the resin pipe inserted in the box, for example, by connecting the pipe joint and then pushing back the resin pipe so that the resin pipe joint fits in the box. Therefore, it depends largely on the skill of the builder. There are some resin pipe joints that can be removed once connected to the resin pipe and some that cannot be removed. In the latter case, once the resin fitting is connected, it cannot be removed from the resin fitting.If water should leak from the resin fitting, disconnect the resin fitting from the resin fitting and reconnect it again. It is necessary to connect the resin fitting. However, if the resin pipe joints are connected to both ends of the resin pipe, cutting the resin pipe will also result in poor workability and the pipe length of the resin pipe will be shortened.In the worst case, replace the resin pipe itself. Will have to.

(2) Resin pipe 8 and equipment (water faucet and header)
The life of the resin tube 8 is different, and in general, the life of the resin pipe 8 is often longer than the life of the instrument. On the other hand, when the box needs to be replaced when the device is replaced, the box cannot be replaced unless the resin pipe joint is removed from the resin pipe because the resin pipe joint has a larger outer diameter than the resin pipe insertion port. Some resin pipe joints can be removed once connected to the resin pipe and some cannot. (2-1) Regarding the former, there is a problem in that reliability may be poor because there is a risk that the former may be disengaged when water pressure is applied due to poor construction so that it can be removed. Further, since it can be removed, the structure becomes complicated and the shape becomes large, which leads to an increase in cost. (2-2) Regarding the latter, the resin pipe and the resin pipe joint have a structure that cannot be removed in order to ensure reliability against water leakage, so the resin pipe portion is cut to remove the resin pipe joint. There is a need. Therefore, the cutting of the resin pipe shortens the pipe length, which makes it difficult to attach the device to the original position of the device, and the resin pipe itself has to be laid again. In any of the above cases, the re-laid resin pipe requires the inspection of water leakage again after connecting the resin pipe joint, which is troublesome and labor-intensive. In addition, when the resin pipe is directly fixed to the building frame without using the guide pipe and the pipe is installed, it is necessary to remove the building wall in order to lay the resin pipe again, which requires a very large-scale construction. There's a problem.

Also, in the header box as shown in FIGS. 15 to 19, if there is no space for adding a header or other equipment in the box, the box must be replaced. The resin pipe itself as described above must be re-laid again.

(3) When the resident newly increases the water supply port, the resin pipe cannot be branched from the middle. When cutting the laid resin pipe, since the resin pipe length has already been determined, it is not possible to connect the resin pipe joint after pulling out the resin pipe from the box provided in the branching portion as described above. Therefore, it is extremely difficult to connect the resin pipe joint. In other words, connect the resin pipe in the box,
Furthermore, although it is necessary to connect the resin pipe joints to both ends of the branch fitting, all of these operations must be performed inside the box, and a clearance for connecting the resin pipe fitting to the branch fitting cannot be obtained. For this reason, the construction is difficult, and when it is desired to increase the number of water supply ports, it is only possible to branch the inside of the room or newly lay a resin pipe from the header. When branching indoors, the cost is low, but the branched piping is exposed, which may reduce comfort. In addition, when a resin pipe is newly laid from the header, the appearance can be secured, but it is necessary to lay it under the floor or behind the wall, resulting in large-scale construction and high cost.

In order to solve the above problems, therefore, the workability of the water supply box is improved, and the replaceability of the box and the equipment installed in the box is improved, and
It is to provide a water supply box in which a branch fitting can be easily connected in the middle of an existing resin pipe.

[0017]

In order to solve the above-mentioned problems, according to claim 1 of the present invention, a resin pipe, a resin pipe joint connected to the resin pipe, and at least a resin pipe joint are attached to and detached from the resin pipe joint. In a water supply box having a device that can be connected and a box that covers those connection parts, a resin pipe with a resin pipe held in a resin pipe insertion port of the box having an inner diameter larger than the outer diameter of the resin pipe joint The water supply box was characterized by inserting a presser foot.

With this configuration, after the resin pipe joint is connected to the resin pipe, the resin pipe joint can be inserted into the box and the device and the resin pipe joint can be connected in the box. The construction of equipment other than the included piping can be separated. Further, unlike the conventional case, after inserting the resin pipe into the box, there is no need to connect the resin pipe joint where there is no space in the box, so that the resin pipe joint can be reliably connected to the resin pipe. Further, a branch box (branch fitting) can be connected in the middle of the already laid resin pipe. With this configuration, the resin pipe joint can be connected to the resin pipe before shipment from the factory. In this case, the factory can check for water leakage at the connection.
Therefore, it is possible to ensure the quality that is not affected by the contractor and to deliver the resin pipe of the length determined by the design to the site, so that the scrap material such as the scrap of the resin pipe that is cut out from the resin pipe can be significantly Can be reduced. Further, as a result, the resin pipe can be reliably held by the resin pipe insertion opening of the box, and thus it is easy to ensure airtightness at the resin pipe insertion opening.

According to a second aspect of the present invention, the water supply box according to the first aspect is characterized in that the resin pipe retainer is divided so as to be sandwiched between the resin pipes to which the resin pipe joint is connected.

Thus, the resin pipe retainer can be attached so as to reliably hold the resin pipe even after connecting the resin pipe joint having a large outer shape to the resin pipe, thus improving workability.

According to a third aspect of the present invention, the water supply box according to the first aspect is provided with a guide pipe holding portion which is inserted into the resin pipe insertion port and holds the guide pipe.

Thus, the guide tube can be held in the resin tube insertion opening of the box, and the workability is good even when the guide tube is used.

According to a fourth aspect of the present invention, the resin pipe retainer has a resin pipe holding portion inside one end and a guide pipe holding portion inside the other end. The water supply box was used.

With this arrangement, the resin pipe fitting is passed through the guide pipe, the resin pipe joint is connected to the resin pipe, and then the resin pipe and the guide pipe can be fixed to the box while being held by the resin pipe retainer. Workability is improved.

According to a fifth aspect of the present invention, a conical taper is provided inside the resin pipe retainer from the resin pipe holding portion toward the guide pipe holding portion side. It was the water supply box described in.

As a result, when the guide pipe is already laid and the resin pipe is renewed using this guide pipe, the taper serves as a guide and the resin pipe can be easily inserted into the box to improve the workability. .

According to a sixth aspect of the present invention, the water supply box according to the first to fifth aspects is characterized in that the resin pipe insertion port is formed separately from the box.

As a result, it is not necessary to prepare a plurality of boxes depending on the diameter of the guide tube used, and a product can be manufactured at low cost.

According to a seventh aspect of the present invention, after the resin pipe joint is connected to the resin pipe, the resin pipe joint is inserted into the box through the resin pipe insertion opening of the box, and the instrument is connected to the resin pipe joint. This is a method for connecting pipes in a water supply box.

With this configuration, after the resin pipe joint is connected to the resin pipe, the resin pipe joint can be inserted into the box and the device and the resin pipe joint can be connected in the box. The construction of equipment other than the included piping can be separated. Further, unlike the conventional case, after inserting the resin pipe into the box, there is no need to connect the resin pipe joint where there is no space in the box, so that the resin pipe joint can be reliably connected to the resin pipe. Further, a branch box (branch fitting) can be connected in the middle of the already laid resin pipe.

In the eighth aspect of the present invention, after the resin pipe joint is connected to the resin pipe, the resin pipe retainer is attached to the resin pipe, and the resin pipe and the resin pipe retainer are inserted into the box from the resin pipe insertion port. Then, the pipe connecting method in the water supply box is characterized by connecting an instrument to the resin pipe joint.

With this configuration, the resin pipe can be reliably held by the resin pipe insertion port of the box, so that the airtightness of the resin pipe insertion port can be easily ensured.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described more specifically with reference to the drawings. Here, the water supply box refers to a water-permeable device using the boxes 2, 51, and 53. Water-permeable appliances include faucets, water stoppers, branch fittings in pipes, and equipment that distributes water to the building within the building.
For example, a header and the like are also included.

The first embodiment of the present invention will be described. FIG. 1 is an external perspective view of a wall-embedded water stopcock, which is a type of water supply box, and FIG. 2 is a perspective view of the water supply box of FIG. 1 excluding a cover. In this water supply box, a resin pipe joint 9 is connected to the resin pipe 8 outside the box 2, the resin pipe joint 9 is inserted into the box 2, and a device mainly composed of a water stop plug 4 a and a one-touch joint 3 4 and the opening of the box 2 is covered with the cover 1. A handle 4b for operating the one-touch joint 3 and the water stopcock 4a is provided so as to project from the cover 1 toward the indoor side. The one-touch joint 3 is adapted to be connected to a plug (not shown) provided at a pipe end portion of a water using appliance such as a water faucet, so that water can be supplied to the water using appliance such as a water tap. The resin pipe 8 and the instrument 4 are connected via a resin pipe joint 9, and the resin pipe joint 9 and the instrument 4 are fitted and connected to each other in a fitting direction by applying water pressure or the like. The fitted connecting portion is fixed by the quick fastener 5 which can be prevented from coming off.

The resin pipe insertion opening 2a of the box 2 of the present invention has a hole diameter through which the resin pipe joint 9 can be inserted. That is, the inner diameter of the resin pipe insertion opening 2a of the box 2 is
It is larger than the outer diameter of the resin pipe joint 9. And, the resin tube retainer 1
2 is inserted into the resin pipe insertion port 2a to hold the resin pipe 8 and the guide pipe 10. In addition, this box 2
Preferably has an opening on the indoor side, and a hole for the resin pipe insertion port 2a is formed on any of the side surfaces adjacent to this opening. The resin pipe retainer 12 will be described in detail with reference to FIGS. FIG. 3 shows the resin pipe insertion port 2a of the box 2.
FIG. In FIG. 3, the inside of the resin tube insertion opening 2a of the box 2 has a substantially cylindrical shape, and as shown in FIG. Further, FIG. 4 is a front external view of the resin pipe retainer 12 (one component divided into two), FIG. 5 is a right side external view of the resin pipe retainer 12, and FIG. 6 is a top external view of the resin pipe retainer 12. FIG. 4 is a front sectional view of a resin pipe retainer 12. The resin tube retainer 12 is shown in FIG.
It is designed to be used by stacking two parts.
That is, the resin pipe retainer 12 has a substantially cylindrical shape in the overlapped state, is provided with four ribs 12a on the outer circumference, and is fitted into the resin pipe insertion opening 2a of the box.
It should be noted that although the case where the resin pipe joint 9 is divided into two is taken as an example here, it may be divided so as to be sandwiched between the resin pipes 8 to which the resin pipe joint 9 is connected. Alternatively, the structure may be sandwiched between three or more parts.

Inside the resin pipe retainer 12 shown in FIG. 7, two guide pipe holding portions 11 and 14 are formed so that the corrugated guide pipe 10 for protecting the resin pipe 8 can be held. . In addition, the reason why the two convex portions 11 and 14 are provided in the inner peripheral shape having different diameters in this way is to be able to hold the guide tubes 10 having different diameters. Further, on the outside of the resin pipe retainer 12, there is provided a convex portion 13 that prevents the resin pipe from coming off after being inserted into the resin pipe insertion opening 2a of the box 2. That is, the resin pipe retainer 12 has a substantially cylindrical shape,
A resin pipe holding portion 15 is provided inside one end, and a guide pipe holding portion (projections 11 and 14) is provided inside the other end. Then, the hole 7 of the resin pipe insertion opening 2a and the convex portion 13 are engaged with each other. This convex portion 13 has a shape as shown in FIG. 5, and since the resin pipe retainer 12 is made of resin, it has a shape having elasticity in the radial direction.

Further, at the inner upper end of the resin pipe retainer 12,
A resin pipe holding portion 15 having a diameter substantially equal to the outer diameter of the resin pipe is provided to hold the resin pipe 8. The resin pipe holding portion 15 has a conical shape extending from the resin pipe holding portion 15 toward the guide pipe holding portion (projections 11 and 14). Taper 16 is provided. This is because when the resin pipe 8 is inserted only after the guide pipe 10 is connected to the box 2 (for example, when the resin pipe is renewed), the resin pipe 8 passing through the guide pipe 10 follows the taper 16. Since it is guided by the resin pipe holding portion 15, the workability is good. Here, the guiding of the resin pipe holding portion 15 to the resin pipe insertion port 2a has a conical taper shape.
The shape is not limited to the conical shape, and any shape having a gradually decreasing diameter to the resin pipe holding portion 15 having a smaller diameter has the same effect.

Next, the sealing structure of the resin pipe with the box will be described. The shape of the packing 6 will be described with reference to FIGS. 8 and 9. FIG. 8 is an external view of the upper surface, and FIG. 9 is a front sectional view. In FIG. 8, this packing is adapted to accommodate two types of resin pipes 8 having different diameters, and a large-diameter resin pipe corresponding portion 17 corresponding to the resin pipe 8 having a large diameter and a resin pipe 8 having a small diameter. Corresponding to the small-diameter resin pipe 18 is integrally formed, and has cutting portions 19 and 20 in the radial direction, respectively. In FIG. 9, convex portions 21 and 22 are provided in a circumferential shape at a portion in contact with the resin pipe 8. In addition, a cylindrical convex portion 23 having a taper at the tip is provided on one of the resin pipe corresponding portions having a small diameter. The packing 6 may be formed with the large diameter resin pipe corresponding portion 17 and the small diameter resin pipe corresponding portion 18 in advance so as to correspond to the resin pipes 8 having different diameters as described above, but they are formed separately. You may keep it. By forming the packing 6 as described above, the airtightness can be reliably maintained, and dew condensation of the water supply box does not occur. In addition, even if water leaks inside the box, water will not leak from the pipe insertion port of the box, and expansion damage can be prevented.

The space between the cover 1 and the instrument 4 is covered with a packing 38 made of an elastic material. Further cover 1
Although the box 2 and the box 2 are not shown, they are installed so as to sandwich the building wall board through a fixed frame, and the cover 1, the box 2, the fixed frame, and the board are air-tightly connected via packing, though not shown. ing.

Next, the procedure for constructing the above-mentioned water embedding plug for the wall-embedded stopcock in the water supply box will be described below. First, the resin pipe joint 9 is connected to the resin pipe 8 inserted through the guide pipe 10. Since the resin pipe joint 9 can be connected before the resin pipe 8 is inserted into the box 2, the resin pipe joint 9 can be connected to the resin pipe 8 with good workability and reliability. Then, the guide tube 10 is sandwiched by the two resin pipe retainers 12 so that the convex portion 11 provided inside the resin pipe retainer 12 is fitted into the outer diameter concave portion (corrugated portion) of the guide pipe 10.
Then, with the guide tube 10 sandwiched, the resin tube holder 1
2 is inserted into the resin tube insertion opening 2a of the box 2.

When the resin pipe retainer 12 is inserted to a predetermined position of the resin pipe insert opening 2a, the convex portion 13 of the resin pipe retainer 12 shown in FIG. 7 is locked and fitted into the window 7 of the box insert inlet 2a. The resin pipe retainer 12 is prevented from coming off from the resin pipe insertion opening 2a. In addition, since the convex portion 13 has elasticity in the radial direction as described above, the resin pipe retainer 12 after being fitted once.
When it is desired to remove the resin tube from the box 2, the convex portion 13 is deformed by pushing the convex portion 13 from the window portion 7 and the locking is released, and the resin pipe retainer 12 can be pulled out from the box. By inserting the resin pipe retainer 12 into the resin pipe insertion port 2a, the resin pipe joint 9 connected to the resin pipe 8 can be arranged in the box 2. After that, the packing 6 is fitted into the gap between the resin pipe 8 and the resin pipe insertion opening 2a of the box 2. Through the above steps, the water supply box becomes the state shown in FIG.

Next, when the guide tube 10 has a large diameter,
This will be described below with reference to FIG. 10, which is a partial cross-sectional view of the resin pipe insertion port 2a. Convex portion 14 provided inside resin pipe retainer 12
The guide tube 10 is sandwiched by using the
To insert. That is, it is similar to the case of FIG. 3 in which the diameter of the guide tube 10 is small, except that the convex portion into which the guide tube is fitted is different.

Next, another embodiment in which the diameter of the resin pipe is small will be described below with reference to FIG. FIG. 11 shows
This is a case where the resin holding portion 15 of the resin pipe retainer 12a also serves as the resin pipe 8 having a large diameter. The packing 6 used here uses the small-diameter resin pipe corresponding portion 18 shown in FIG. Since the diameter of the resin pipe 8 is small, a gap is created between the resin pipe holding portion 15 and the resin pipe 8, but the cylindrical convex portion 23 of the packing 6 is fitted into this gap portion to hold the resin pipe 8. It is possible. The cylindrical convex portion 23 is provided to prevent the resin pipe from being displaced, and the inner diameter convex portion 22 is used to seal the resin pipe 8.

With the configuration as in the above embodiment, the resin pipe 8 to which the resin pipe joint 9 is connected can be inserted into the resin pipe insertion opening 2a of the box 2. for that reason,
Installation of resin pipes 8 and equipment 4 including box 2
Installation work can be done separately. 5
m, 10 m, 15 m, 20 m, 25 m, etc. of resin pipes 8 of a predetermined length are prepared in advance, and the resin pipes 8 are preliminarily set in the factory.
If the resin pipe joint 9 is connected to, there is no fear of water leakage due to a poor connection between the resin pipe 8 and the resin pipe joint 9. In particular,
Since it is possible to inspect at the factory whether or not the connection is poor before installation on site, it is possible to reduce the construction load without the trouble of laying the bad connection and redoing it. Furthermore, no scraps of scraps of the resin pipe 8 are generated on site. In addition, it is possible to easily update the appliance 4 that will be used for water passage including the box 2 in the future. It should be noted that there is no restriction on updating the device 4 that occurs because the box 2 cannot be replaced. Also, if the box is damaged, it can be easily replaced.

Next, a case where the water supply box according to the second embodiment of the present invention is a header box will be described below with reference to FIGS.
It will be explained based on. The header box is one in which a header for branching a plurality of resin pipes is housed in the box 51, and each end device (including the water supply box of FIG. 1 described above).
It is for supplying water to. Here, the connection port body 49 of the guide pipe connection port corresponds to the resin pipe insertion port 2a of the water supply box of FIG. 1 described above, and is configured separately from the box 51. Others are the same as the water supply box of FIG. 1 described above. The structure of the connection port body 49, which is a resin tube insertion port, will be described below. FIG. 20 is an enlarged partial sectional view of the connection port body 49. The box 51 is sandwiched, and the nut 50 is fixed to the male screw at one end of the connection port body 49 by fitting. The resin pipe retainer 12 and the packing 6 are arranged inside the connection port body 49. Therefore, in the procedure for constructing the resin pipe, the resin pipe 8 can be inserted into the connection port body 49 after the resin pipe joint 9 is connected to the resin pipe joint 9 as in the first embodiment of the present invention.

The procedure for constructing the header box in the detached house of the wooden shaft construction method will be described below. When the construction work on the building body side has pillars and studs erected on the foundation, the header 43A
The resin pipe 8 (the guide pipe 10 and the resin pipe 8 when the guide pipe 10 is used) from the place where the terminal device is installed to the place where the terminal device (including the water supply box of FIG. 1 described above) is installed,
Lay. A resin pipe joint 9 is connected to the end of the laid resin pipe 8. (Note that the resin pipe joint 9 may be connected to the resin pipe 8 at the factory before shipping to the site.) After this laying work is completed and the outdoor exterior wall work and roof work are finished, The box 51 is attached to the opening. (The box 2 of the water supply box on the terminal device side is also attached to the stud or the pillar.) The box 51 may be installed at the same time as the laying work. After that, the resin pipe 8 to which the resin pipe joint 9 is connected from the indoor side is inserted into the box 51 from the connection port body 49,
The guide tube 10 is fixed to the connection port body 49 using the resin tube retainer 12. (When the guide tube 10 is not provided, the resin tube retainer 12 is mounted so as to be sandwiched between the resin tubes 8 and inserted into the connection port body 49 to be fixed.) As a result, the connection port body 49 is placed in the box 51 on the outdoor side. The resin pipe joint 9 connected to the resin pipe 8 can be pulled out from. Then, as shown in FIG. 21 showing the header 43A installed inside the box 51, the resin pipe joint 9 is fitted and connected to the resin pipe connection port 43 for hot and cold water supply, and the quick fastener 5 is attached so as not to come off in the fitting direction. Fix at.

By constructing the header box as described above, the installation work of the header box and the piping work of the resin pipe can be separated, and there is no need for construction time and fine schedule adjustment on the side of the building body, which limits the construction time. There is no. That is, conventionally, the resin pipe 8 is inserted into the box 51 and then the resin pipe joint 9 is inserted.
Since it was connected, it was necessary to attach the box 51 at the same time as the piping work. Therefore, there was a problem that the box builder is restrained for the plumbing work, but the present invention allows the box builder to perform the work on a convenient schedule without being bound by the schedule of the plumbing work. . This applies not only to the header box but also to the water supply box construction on the end equipment side. Also, in the case of a header box, it is preferable that the box be attached to the outside of the foundation in consideration of maintainability, but conventionally, the box 51 is attached in a protruding state at the same time as the piping work before the outer wall work and the like. Therefore, there is a problem that it interferes with the scaffolding for the outer wall work and the roof work. On the other hand, in the present invention, only the installation work of the resin pipe 8 and the connection work of the resin pipe joint 9 are performed, and after the outer wall work and the roof work are completed, the installation work of the box 51 and the resin pipe 8 and the resin in the box 51 are completed. Since the pipe joint 9 can be taken in, the problem of obstructing the work of other vendors in the above-mentioned matching work is eliminated. Further, since it is not necessary to remove the resin pipe 8 and the resin pipe joint 9 even when the box 51 is removed, a large-scale work such as re-laying up to the resin pipe 8 is not required, and the resin pipe 8 and the resin pipe joint 9 are not reused. There is no need to perform a water leak inspection of the connection part with.

The third embodiment of the present invention will be described below with reference to FIGS. 22 and 23. This water supply box is an example of a branch box that branches the resin pipe 8 laid from the header to the water supply box of the end device in the water supply system using the guide pipe 10 and the resin pipe 8. FIG. 22 is an external view of this branch box, and FIG. 23 is a partial sectional view. In the box 53 of this branch box,
A tube insertion port 54 and two tube outlets 55 are formed. Further, the pipe insertion port 54 and the two pipe outlets 55 are respectively provided as resin pipe insertion ports 6 which are separate guide pipe connection ports.
1 is attached. The structure of this resin pipe insertion opening 61 is the same as that of the second embodiment of the present invention described above.

The construction procedure for this branch box will be described below. First, the three resin pipes 8 are connected to the guide pipes 10 respectively.
Then, the resin pipe joint 9 is connected to each resin pipe 8.
After the installation of the three resin pipes 8 is completed, the box 53 is attached to the installation position. Thereafter, the resin pipe 8 to which the resin pipe joint 9 is connected is sandwiched by using the resin pipe retainer 12 and inserted into the resin pipe insertion opening 61. All three resin pipes 8 are inserted into the box 53 and fitted and connected to the connecting portion of the branch fitting 60. Then, it is fixed with the quick fastener 5 so that the fitting connection does not come off. After that, the packing 6 is fitted between the resin pipe insertion opening 61 and the resin pipe 8 to be airtight. Finally, the cover 52 is fixed to the box 53. In addition, the above construction is
Although the three resin pipes 8 are laid, the same applies to the case where the already laid resin pipe 8 is cut midway and the resin pipe 8 is branched with the branch metal fitting 60 interposed.

As described above, by constructing the above-mentioned branch box, the branching work of the resin pipe 8 is separated into the piping work and the branching box work, which is easy. Further, as a result of the construction being separated as described above, this branch portion can be installed in the middle of the existing pipe. When the conventional box is used, it is necessary to connect the resin pipe joint 9 after inserting the resin pipe 8 into the box 53, so that the resin pipe 8 cannot be pulled out from the box 53 and the resin pipe joint 9 Is very difficult to connect to the resin pipe 8. Further, since there is no clearance inside the box 53, it is very difficult to fit and connect the resin pipe joint 9 and the branch fitting 60 inside the box 53. However, in this configuration, since the resin pipe joint 9 can be installed before it is inserted into the box 53, the resin pipe 8
The resin pipe joint 9 can be easily connected to the branch pipe 60 and the resin pipe joint 9 connected to the resin pipe 8 can be easily connected to the branch fitting 60.

[0051]

EFFECTS OF THE INVENTION With the above configuration, the resin pipe joint can be connected to the resin pipe and then inserted into the box to connect the device and the resin pipe joint in the box. It is possible to separate the piping work to be done and the equipment parts other than the piping, including the box. Further, unlike the conventional case, after inserting the resin pipe into the box, there is no need to connect the resin pipe joint where there is no space in the box, so that the resin pipe joint can be reliably connected to the resin pipe. Further, a branch box (branch fitting) can be connected in the middle of the already laid resin pipe. Further, at the time of future renewal, it is possible to replace at a replacement frequency that suits each life, and this can be realized at low cost.

[Brief description of drawings]

FIG. 1 is an external perspective view of a first embodiment of the present invention.

FIG. 2 is a perspective view with the cover removed according to the first embodiment of the present invention.

FIG. 3 is a partial half sectional view according to the first embodiment of the present invention.

FIG. 4 is a front external view of the resin pipe retainer according to the first embodiment of the present invention.

FIG. 5 is a right side external view of the resin pipe retainer according to the first embodiment of the present invention.

FIG. 6 is a top external view of a resin pipe retainer according to the first embodiment of the present invention.

FIG. 7 is a front sectional view of the resin pipe retainer according to the first embodiment of the present invention.

FIG. 8 is a top external view of the packing according to the first embodiment of the present invention.

FIG. 9 is a front sectional view of the packing according to the first embodiment of the present invention.

FIG. 10 is a partial half sectional view according to the first embodiment of the present invention.

FIG. 11 is a partial half sectional view according to the first embodiment of the present invention.

FIG. 12 is a half sectional view of a conventional water-permeable member.

[Fig. 13] Construction state diagram of a conventional faucet

FIG. 14 is an external view of a conventional packing.

FIG. 15 is an external perspective view of a conventional header box.

FIG. 16 is a perspective view of a conventional header box.

FIG. 17: Relationship diagram with the conventional header box foundation

[Figure 18] Indoor header installation state diagram of conventional header box

[Fig. 19] Outdoor header side installation state diagram of conventional header box

FIG. 20 is an enlarged half sectional view of a guide pipe connection port according to the second embodiment of the present invention.

FIG. 21 is a perspective view of the inside of a header box according to the second embodiment of the present invention.

FIG. 22 is an external view of Embodiment 3 of the present invention.

FIG. 23 is a half sectional view according to the third embodiment of the present invention.

[Explanation of symbols]

1 cover Two boxes 2A box resin tube insertion port 3 one-touch joint 4 appliance water flow section 5 quick fasteners 6 packing 7 windows 8 resin tubes 9 Resin fittings 10 Guide tube with wave 11 Guide tube holding protrusion 12 Resin tube retainer 13 retaining protrusion 14 Guide tube holding protrusion 15 Resin pipe holder 16 Conical taper 17 Large diameter resin pipe compatible part 18 Small diameter resin pipe compatible part 19 cutting part 20 cutting part 21 Circular convex 22 Circumferential projection 23 Cylindrical protrusion 24 Connection 25 instruments 26 cover 27 boxes 28 packing 29 wall boards 31 pillars 32 cutting part 33 packing 34 packing 35 packing 36 mounting frame 37 Resin tube insertion port 38 packing 39 boxes 40 cover 41 Water supply connection port 42 Pressure reducing valve 43 Resin pipe connection port for hot and cold water supply 44 Guide tube connection port 45 Water supply port to the water heater 46 Hot water inlet from the water heater 47 Guide tube with wave 48 jig 49 Connection port body 50 nuts 51 boxes 52 cover 53 boxes 54 tube insertion port 55 Pipe outlet 57 Basic 58 bolt 59 Guide tube connection 60 branch fittings 61 Guide tube connection port

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akizuki Ishigami             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. F term (reference) 2D060 AC03 AC05 BF01 BF09

Claims (8)

[Claims] 1. A water supply box having a resin pipe, a resin pipe joint connected to the resin pipe, at least a device detachably connected to the resin pipe joint, and a box for covering the connecting portion thereof, wherein the resin pipe A water supply box characterized in that a resin pipe retainer is inserted while holding a resin pipe in a resin pipe insertion opening of the box having an inner diameter larger than the outer diameter of the joint. 2. The water supply box according to claim 1, wherein the resin pipe retainer is divided so as to be sandwiched between resin pipes to which a resin pipe joint is connected. 3. The water supply box according to claim 1, further comprising a guide pipe holding portion which is inserted into the resin pipe insertion port and holds a guide pipe. 4. The water supply box according to claim 1, wherein the resin pipe retainer has a resin pipe holding portion inside one end and a guide pipe holding portion inside the other end. 5. The water supply box according to claim 4, wherein the resin pipe retainer is provided with a conical taper from the resin pipe holding portion toward the guide pipe holding portion side. 6. The water supply box according to claim 1, wherein the resin pipe insertion port is formed separately from the box. 7. A water supply characterized by connecting a resin pipe joint to a resin pipe, inserting the resin pipe joint into the box through a resin pipe insertion opening of the box, and connecting an instrument to the resin pipe joint. How to connect pipes in a box. 8. After connecting a resin pipe joint to the resin pipe,
A method for connecting pipes in a water supply box, which comprises attaching a resin pipe retainer to a resin pipe, inserting the resin pipe and the resin pipe retainer into a box from a resin pipe insertion port, and connecting an instrument to the resin pipe joint.