JP2000205465A - Piping member and its construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure safety of water quality, load reduction of job site construction, prevention of leakage in a connection part and execution quality assurance by constituting precut assemble previously assembled in a factory and a quality- controlled piping member with a piping and a coupling having flexibility. SOLUTION: A piping member 16 is formed such that couplings 14, 15 are respectively connected to both ends of a resin-made flexible piping 13. The coupling 14 for being connected to feed water equipment such as a faucet is provided with a stop cock 17, and the coupling 15 is a member for constituting a header and formed into T shape. The couplings 14 and 15 are previously connected to ends of the piping 13, respectively, by caulking in a factory. Before caulking process, vibration isolating rings 21, 22 each of which is made of elastic member are provided on an outer periphery of the piping 13, and vibration and noise of the piping 13 due to a water hammer are prevented. A member 90 having low sliding resistance is affixed on outer peripheries of the vibration isolating rings 21, 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping member and a method for constructing the same, and can be used for piping such as a water pipe used in a building such as a house.

[0002]

2. Description of the Related Art Conventional piping construction has mainly involved cutting and connecting piping at a construction site. However, there have been many problems such as the reliability of water leakage at the pipe connection and the actual occurrence of a water leakage accident. In order to solve these problems, various improvements have been made, such as a header construction method in which the solvent joining and connection points of the PVC pipe are concentrated and reduced, and a sheath construction method for protecting against water leakage. Further, in recent years, resin pipes such as crosslinked polyethylene pipes and polybutene pipes have been widely used due to deterioration of water quality due to rust, patina and the like, improvement of heat resistance performance, and workability. Therefore, proposals for header piping using resin pipes are rapidly increasing due to water quality, reliability, and workability. The point of improvement of header piping using resin pipes is concentrated on the connection technology of the connection points of piping and joints,
Various proposals have been made.

[0003] As described in JP-A-7-190247 and JP-A-9-279647, in an indoor pipe of an apartment house, the pipe is previously fusion-spliced in accordance with a layout around water. Techniques such as pre-cutting pipes and connecting joints, such as system pipes, have been applied.

[0004]

The problems to be solved by the present invention are to control the elution quality of a stable material without using an adhesive or the like, to ensure the safety of water quality by controlling the quality of contaminants during transportation and construction, Construction efficiency with reduced construction load, reliability of water leakage at the connection, assurance of construction quality,
It is a construction response that takes into account expansion and remodeling such as renovation.
In addition, the system piping assembled in advance by the conventional bonding or fusion has a heavy piping weight, and is difficult to carry on site. Therefore, the present invention provides a piping unit which can be constructed by one person and can stably improve water quality and construction quality, and a construction method thereof.

[0005]

SUMMARY OF THE INVENTION In a header piping system, each of the branch piping at the ends is formed into a precut assembly and a quality-controlled piping member in which flexible piping and fittings are assembled in a factory in advance. And treat the piping member itself as one product. Also,
A construction method is provided so that construction, reform, and maintenance can be performed using the piping member.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A meter module piping member divided every 1 m is made of a material selected in advance from the viewpoint of safety. In particular, a pipe having flexibility is used. At the factory, a joint processed so that a water supply device such as a pipe and a faucet fitting can be connected and assembled to both ends of a flexible pipe is assembled. Removes foreign matter from inside and performs pressure resistance inspection. Pack and pack so that foreign matter does not enter. The plumber examines the layout of the piping, selects a piping member of a required length, and connects a plurality of piping members selected according to the layout brought to the site to assemble the piping at the site.

If the length of the piping is too long, the flexibility of the piping member is used to make a large detour and adjust the length or replace it with a shorter one. If it is short, a pipe for replenishment is added. Or, replace with a long piping member. When a piping route is added, the closing lid at the end of the header may be removed, and a necessary new piping member may be attached. Piping members that can be installed without fixing the piping so that they can be renewed even after the construction work is completed are being prepared. In that case, in order to reduce the cost of the piping member, it is possible to use a device in which reduction of the water hammer is considered.

FIG. 1 is a perspective view showing one example of an embodiment in which piping is performed by a piping member according to the present invention, showing a construction layout of piping. In FIG. 1, reference numeral 1 denotes a water meter, and a flexible resin pipe 2 is used for supplying water and is connected to a water supply header 3. A flexible resin pipe 4 is used for hot water supply and is connected to a hot water supply header 6 through a heat source machine 5. The water supply header 3 and the hot water supply header 6 are connected to a water supply device 12 such as a faucet at the end. 7 is a washing machine, 8
Denotes a vanity table, 9 denotes a kitchen, 10 denotes a toilet bowl, and 11 denotes a bathtub.

FIG. 2 shows a flexible resin pipe 13.
And an example of a pipe member 16 in which joints 14 and 15 are crimped to both ends of a pipe 13.
Is connected to a water supply device such as a water faucet, and is provided with a water stop faucet 17 and is caulked and connected to one end of the pipe 13 in advance at a factory or the like. The joint 15 is one member constituting the header and is formed in a T-shape, and is crimped and connected to the other end of the pipe 13 at a factory in advance. Reference numerals 18 and 19 are connecting members used for caulking. The connection between the joints 14 and 15 and the flexible resin pipe 13 is performed by inserting the pipe 13 into the joints 14 and 15 in the axial direction of the connection and performing electrofusion, press-fitting, caulking, and stopping the pipe at the outer periphery of the pipe. It may be fixed with a support or the like. Reference numeral 20 denotes a heat insulating material provided on the outer surface of the pipe 13 and made of a foamed resin or the like. Numerals 21 and 22 are provided on the pipe 13 before the joints 14 and 15 are crimped and connected to both ends of the pipe 13, and are made of an elastic member for preventing the pipe 13 from being moved by a water hammer and generating noise. It is a ring. A member 90 having a small slip resistance is attached to the outer surface of the vibration isolation ring.

FIG. 3 is a view showing a pipe member 25 provided with fixing saddles 23 and 24 as pipe fixing tools used when fixing the pipe 13 in advance at a factory.

FIG. 4 is a view showing that the stop cock operating hand 26 of the joint 14 connected to the piping member 16 is detachable.

FIG. 5 shows an elbow 27 with a seat at one end of a pipe 13 provided with a mounting seat 91 as a fixing means for fixing to a mounting surface so that water can be supplied from a wall hole as a joint, and a header member at the other end. FIG. 8 is a view showing a pipe member 28 in which a T-shaped joint 15 is crimped and connected in advance at a factory as a joint to be formed.

FIG. 6 shows another piping member 2 attached to the piping member 16.
FIG. 9 is a diagram showing a state in which 9 is connected. Since the piping member 16 is prepared in advance according to the distance from the header to the end of each faucet, it is considered that there is no dimensional defect, but it is used for extension in the event that a defect occurs. This is a piping member 29. It is a diagram showing that joints 31 and 32 are crimped and connected to a flexible resin pipe 30 in advance at both ends of a pipe member 29 for extension. Screws are formed in the joints 31 and 32, and when connecting to the pipe member 16, screw connection between the screw 33 formed in the joint 14 at one end of the pipe member 16 and the screw portion of the joint 32 is performed. Indicates that the piping member 16 can be extended.

FIG. 7 is a view showing that the joint 15 of the piping member 16 and the joint 35 of the piping member 34 can be connected and disconnected with one touch. The header 36 is formed by connecting the joint 15 of the piping member 16 and the joint 35 of the piping member 34. The piping member 16 and the piping member 34 are transported separately to the construction site. The work at the construction site is performed by using the joint 15 of the pipe member 16.
And the joint 35 of the piping member 34, and the header 3
6 means that the joints 14 and 36 of the piping member 16 and the piping member 34 are connected to a water supply device such as a faucet. Further, the T-shaped joints 15 and 35 have a function of enabling a number of connections.

FIG. 8 is a partially sectional plan view showing a state where the T-shaped joints 15 and 35 of the piping member 16 and the piping member 34 are actually connected. The connection state of the joints 15, 35, the T-shaped joints 15, 35 and the joints 14, 36
Are connecting members 18, 19, 37, and 38,
It is shown that it is crimped to 39. 40
Is a connecting member for connecting the T-shaped joints 15 and 35. One end of each of the T-shaped joints 15, 35 has a flange 41,
42 is formed, the end faces of the flanges 41 and 42 are brought into contact with each other, and the flanges 41 and 42 are brought into contact with the elongated hole processing portion 44 of the side surface 43 of the connecting member 40 to enable connection. Is shown. Reference numeral 45 denotes a closing lid to be used at a portion where the connection of the piping member is the last. FIG. 9 shows the connecting member 4.
0 shows a plan view and a front view.

FIG. 10 shows the piping member 16 and the piping member 36.
Are connected, and the T-shaped joint 15 and the T-shaped joint 35 are rotatable to form a rotary header 46. FIG.

FIG. 11 shows an embodiment in which piping is constructed by using piping members. Since the header is a rotary type, the piping is connected to the water supply device 4 such as a faucet from the headers 47 and 48.
It is a figure showing that detour to 9, 50, 51, 52 is minimized, and connection with a water supply device is enabled smoothly.

FIG. 12 is a view showing a method of connecting the piping member 53 and the floor 54 as an attachment surface. A flexible resin pipe 55 is passed through the opening 56 provided in the floor 54 from below the floor to above the floor, and the elastic member 57 provided in the pipe 55 in advance is moved to a position as shown in the figure. Let it. The support member 58 is inserted between the floor 54 and the member 57 from the side so that the member 57 having elasticity does not move under the floor.
Next, the fixing member 59 having an inner diameter larger than that of the joint connected to the faucet and having a female screw is installed on the floor via the supporting member 58, and the screw 60 is inserted into the screw hole 61 provided in the fixing member 59. It is screwed and fixed to the floor 54. Next, a tightening member 62 having a larger inner diameter than the pipe 55 and a male screw formed on the outer periphery.
Into the female screw of the fixing member 59. The fastening member 62 is divided into two parts in advance, and is used by sandwiching the pipe 55 and screwing it. The inner diameter of the fastening member 62 is formed into a tapered shape. By screwing into the fixing member 59, the taper formed on the inner surface of the fastening member 62 compresses the elastic member 57 to fix the pipe 57. Further, by loosening the fastening member 62, the pipe 55 can be moved in the vertical direction, and the length of the pipe on the floor can be adjusted. FIG. 13 shows a plan view of the support member 58. FIG. A U-shaped notch 66 is provided in the circular main body so that the pipe 55 is inserted.

FIG. 14 is a side view showing a state in which the piping member 53 is connected to a faucet 63 as a water supply device. FIG.
At 4, the construction procedure at the site is actually described. The pipe member 53 conveyed to the site is taken out, and a T-shaped joint 64 (which forms a header) connected to one end of the pipe 55 is connected. A joint 65 fixed or connected and connected to the other end of the pipe 55 is passed through an opening 56 provided in the floor 54 and a faucet 63.
And make a connection. Next, the pipe 55 is fixed to the floor 54 using the fixing member 60 or the like in the manner described with reference to FIG.

FIG. 15 shows another embodiment of the piping member 70. Flexible resin piping 71 is provided with plugs 7 at both ends.
2, 73 are previously caulked at the factory. A plug joint 75 is preliminarily crimped and connected to one end of a T-shaped joint 74 at a factory.
7 and 78 are also connected in advance at the factory. This is an exploded view showing that the plugs 72, 73 can be easily connected to and disconnected from the plug joints 77, 75.

FIG. 16 is a side view showing a state where the pipe member 70 shown in FIG. 15 is connected to the faucet 63.

FIGS. 17 and 18 show an example of a construction method in the case where the floor 80 has already been constructed. One end of the connecting member 83 is connected to the joint 82 of the piping member 81 connected to the end of the water supply device. Attach the other end to the remote control 84 (RC). And it is carried by remote control to under the floor of the water supply equipment installation point. Further, the connecting member 83 is placed on the floor.
FIG. 9 is a diagram showing that the one end joint 822 of the piping member 81 connected to the other end of the connecting member 83 is brought up onto the floor and connected to the water supply device by pulling up the holding member 85 and pulling it.

FIG. 19 is a view showing a header 86 installed outside the building, and the leakage of the header 86 can be visually confirmed. FIG. 20 is an overall perspective view of a pipe in which a header is installed outside a structure.

FIG. 21 shows a header 87 installed under the floor of the building, in which an inspection port 88 is provided.
It is the figure which showed that water leakage of a part can be confirmed visually.

[0025]

As described above, in a flexible pipe having a predetermined length, a joint to which a water supply device such as a faucet fitting or a water-using appliance is connected is provided at one end of the pipe, and the other end of the pipe is provided at the other end of the pipe. Since the joint for branching the pipe is provided, the work of assembling the pipe at the construction site is eliminated, and the connection quality between the pipe and the joint can be guaranteed in advance. Until now, in order to improve workability in the field, insertion connection by packing seal and connection by electric fusion were performed, but it is necessary to always check the chamfering of the pipe end face and check for surface scratches and dirt adhesion was there. If,
If the pipe end face was not chamfered, was scratched or was stained, there was a problem that water leaked after construction at the site. Not surprisingly, even if no initial leak was found, its long-term reliability was unstable.

Since the joint for branching the pipe is formed in a T-shape, it is possible to cope with a small bending radius which is difficult to form with a resin pipe. Also, distribution and merging are easy.

Since the joint connected to the water supply device has a straight shape, a pipe can be laid through a small-diameter through-hole with respect to a building frame at the end such as a floor or a wall. In addition, there is an advantage that the space around the piping can be reduced after installation.

Since at least one of the joints is provided with the water stopping means, the pressure test at the time of shipment of the pipe can be easily performed, so that the cost of the pressure test operation can be reduced.

Since the T-shaped pipe joints can be connected to each other and a header pipe is formed after the connection, a header pipe system capable of stably distributing with a small flow rate fluctuation at the time of simultaneous use of end devices can be easily realized. Also, for the header piping joints, usually a header with connection ports for the required number of ports from 2 ports to 5 ports is selected and the piping is connected on site,
In the present invention, the number of connection ports of header piping can be easily increased or decreased at the site, and it is also possible to change it midway such as extension or remodeling.

The pipe joint is inserted and connected in the direction of the connection axis, and the joint is formed in an uneven shape so that the connection portion does not come off and fixedly supported. Therefore, the joint is inserted without rotating the joint to which the pipe is connected while assembling. By doing so, the connection can be fixed, so that the work can be easily performed even in a narrow construction space, and the construction time can be greatly reduced.

The T-shaped joint is provided with a rotating function so that the connection direction can be changed, so that the pipe can be arranged at the shortest time, the pipe can be arranged upstairs, or can be laid downward. Further, since the bent radius space of the pipe can be eliminated, the space required for laying the pipe can be omitted. When the pipe is renewed after installation, the pipe is pulled out and inserted linearly, so that the pipe renewal workability is greatly improved. Due to the pressure fluctuation that causes the end device to discharge and stop water, a force is generated at the bent portion of the pipe to swing the pipe, causing interference with peripheral members such as the skeleton and generating noise. According to the present invention, the bending of the pipe is reduced and the noise is reduced. Therefore, there is no need to fix the piping,
There is no need for pipe fixing work, and the construction time is greatly reduced. Further, since the pipe is not fixed, the pipe can be easily updated without going under the floor, the wall, or the ceiling.

Since the plug-shaped male joint is inserted and fixed to the branch connection port of the header joint, it is possible to close the ends of the plurality of connected header pipes, and the connection direction is arranged in parallel with the header. The flow distribution becomes stable and uniform. In addition, the elbow joint can be changed to a right-angled elbow joint.

The connection end of one of the pipes is made male and the other connection end of the pipe is made female so that they can be connected to each other, so that the pipes can be added together. It can be added and extended even if it changes.

Since the pipes having flexibility are provided with the pipe fixtures in advance, the work of connecting to the building after the building such as the floor or the wall has penetrated can be greatly reduced.

Since the elastic member is fixed to the outer periphery of the flexible pipe, the pressure fluctuation generated by the end device when the water stops, the pipe shakes, and the noise generated by colliding with the peripheral body is reduced. .

Since a member having low slip resistance is attached to the outer periphery of the elastic member attached to the outer periphery of the flexible pipe,
It is possible to reduce the frictional resistance between the pipe and its surroundings generated when the pipe is renewed, and to reduce the force required for pulling and inserting the pipe.

Since a fixing means for fixing the pipe joint on the side to which the water supply device is connected or the outer periphery of the pipe to the mounting surface is provided, the pipe fixing work becomes easy, and at the same time, noise reduction and expansion and contraction of the pipe due to thermal expansion. The quality of the response can be guaranteed.

A through hole is provided in advance on the floor to allow the piping to pass through the equipment installation, and the pipe member is fed or guided from the location of the water supply or hot water supply header to the target location at the end where the water supply device is installed. The pipes can be laid after the floor installation is completed because the pipes are pulled up from the floor provided at the installation location of the above and the pipes or the pipe joints are fixed to the floor. Since the floor is installed after the pipe is laid, there is a possibility that the quality may be deteriorated in the on-site post-process such as crushing the pipe or punching out the nail during the floor construction work and causing water leakage. In particular, flexible pipes are weak in strength and require careful attention, such as being crushed. Therefore, by executing the present invention, the pipe can be laid after the completion of the on-site skeleton building work, and the plumbing contractor can confidently guarantee the reliability of the water leakage of the pipe.

A through hole is provided on the floor in advance to allow the pipe to pass through to the equipment installation, the pipe is fed from the through hole in the floor, and a target pipe is guided to a pipe header for branching and fixing, and the pipe member is connected to the header. Therefore, it is possible to reduce the number of pipe fixing members since the instrument joint on the pipe end side can be fixed to the building frame. In addition, the fixing is firm and secure.

[Brief description of the drawings]

FIG. 1 is a piping layout diagram showing a state where piping is performed by a piping member of the present invention.

FIG. 2 is a partial sectional view showing one embodiment of the piping member of the present invention.

FIG. 3 is a partial sectional view showing another embodiment of the piping member of the present invention.

FIG. 4 is a side view showing another embodiment of the piping member of the present invention.

FIG. 5 is a partial sectional view showing another embodiment of the piping member of the present invention.

FIG. 6 is an exploded view showing another embodiment of the piping member of the present invention.

FIG. 7 is an exploded view showing a state where the piping members of the present invention are connected to each other.

FIG. 8 is a partially sectional plan view showing a state where the piping members of the present invention are connected to each other.

FIG. 9 is a plan view and a front view of a connecting member.

FIG. 10 is a plan view showing a state where the piping members of the present invention are connected to each other and rotated.

FIG. 11 is a perspective view showing a state where piping is performed by the piping member of the present invention.

FIG. 12 is a cross-sectional view showing a connecting portion between the piping member and the floor.

FIG. 13 is a plan view of a support member.

FIG. 14 is a side view showing a state where the piping member is connected to a faucet.

FIG. 15 is an exploded view showing another embodiment of the piping member.

FIG. 16 is a side view showing a state where the piping member of FIG. 15 is connected to a faucet;

FIG. 17 is a sectional view of an essential part showing an example of a construction method when a floor has already been constructed.

FIG. 18 is a sectional view of a main part showing a state where a main pipe member is taken out of the floor.

FIG. 19 is a cross-sectional view of a main part showing a header installed outside the structure.

FIG. 20 is an overall perspective view showing a header installed outside the structure.

FIG. 21 is a sectional view of a main part showing a header installed under the floor of the building.

[Explanation of symbols]

13, 30, 39, 55, 71: Flexible piping 14, 27, 31, 32, 36, 65, 76, 82 ... Joint 15, 35, 64, 74 ... T-shaped joint 16, 25, 28, 29, 34, 53, 70, 81: piping member 17: water stopcock 20: heat insulating member 21: elastic member 23, 23: fixing member

Claims (15)

[Claims] In a flexible pipe having a predetermined length, a joint to which a water supply device such as a water faucet or a water-using appliance is connected is provided at one end of the pipe, and the other end of the pipe is provided at the other end of the pipe. A piping member provided with a joint for branching piping. 2. The piping member according to claim 1, wherein the joint for branching the piping has a T-shape. 3. The piping member according to claim 1, wherein the joint connected to the water supply device has a straight shape. 4. The piping member according to claim 1, wherein at least one of the joints is provided with a water stopping means. 5. T-shaped joints can be connected to each other,
The piping member according to any one of claims 2 to 4, wherein a header pipe is formed after the connection. 6. The piping member according to any one of claims 1 to 5, wherein the joint is inserted and connected in a connection axis direction, and the joint is formed in an uneven shape so that the connection portion does not come off, and fixedly supported. . 7. The T-shaped joint has a rotating function so that the connection direction can be changed.
7. The piping member according to any one of items 1 to 6. 8. The piping member according to claim 1, further comprising a plug-shaped male joint inserted into and fixed to the branch connection port of the header piping joint. 9. The pipe according to claim 1, wherein the connection end of one joint of the pipe has a male shape, and the other connection end of the pipe has a female shape and can be connected to each other. For piping. 10. The piping member according to claim 1, wherein a piping fixture having a flexibility is provided in advance on the flexible piping. 11. The piping member according to claim 1, wherein an elastic member is fixed to an outer periphery of the flexible piping. 12. The piping member according to claim 11, wherein a member having low slip resistance is attached to an outer periphery of an elastic member attached to an outer periphery of the flexible piping. 13. The piping according to claim 1, further comprising fixing means for fixing to a mounting surface at an outer periphery of a joint or a pipe to which the water supply device is connected. Element. 14. A water supply device for a piping member according to any one of claims 1 to 13, wherein a through-hole is provided in advance on the floor surface to allow a pipe to pass through for installation of an appliance, and a water supply or hot water supply header is installed from a location where the header is installed. A method for constructing a piping member that feeds or guides a pipe to a target location at the end of the pipe, pulls up the pipe from a floor provided at a location where the water supply device is installed, and fixes the pipe or a pipe joint to the floor. 15. A through-hole through which a pipe is passed through the floor beforehand for installation of an instrument, a pipe is fed from the through-hole in the floor, and the pipe is guided to a pipe header for branching and fixing a target pipe. A method of constructing a piping member, comprising connecting the piping member to a header.