JP7137201B2 - Hanging pipe for water supply - Google Patents

Description

The present invention is useful when performing renewal work or repair work on water supply pipes (water supply pipes) laid in multi-story buildings such as condominiums, schools, hospitals, buildings, etc. It relates to the hanging pipe for water supply that connects the vertical pipe line of the temporary pipe line installed in the building and the meter unit installed in the meter box or pipe space of each dwelling unit in the building and equipped with a water meter. It relates to a hanging pipe for water supply arranged along the ceiling surface of the outer corridor and the wall surface of the outer corridor.

In general, water supply pipes that are laid in multi-story buildings such as condominiums, schools, hospitals, buildings, etc., have been used for many years, and have developed inside water supply pipes such as galvanized steel pipes. Rust, etc. causes red water outflow, sliminess in pipes, generation of bacteria, decrease in flow rate and water pressure, generation of scale, outflow of scale, etc., resulting in deterioration of water quality and sanitary issues, as well as damage to packing. Various adverse effects such as water leakage accidents due to deterioration will occur.

Therefore, in a multi-story building such as an apartment complex, when the above problem occurs, the water supply pipe line is renewed or repaired. At this time, in the renewal work or repair work of the water supply pipe laid in the building, the pipe renewal or repair due to the long-term water outage is not permitted because the residents live.

In this way, in the conventional renewal work and repair work of water supply pipes, since it is not permitted to renew or repair pipes due to water outages for a long time, a method of installing so-called temporary pipes is adopted (for example, , see Patent Documents 1 and 2).

Vinyl pipes, polyethylene pipes, and the like, which are lightweight and excellent in handleability, are widely used in place of metal pipes such as steel pipes for the temporary pipes. In particular, when laying a temporary pipeline using vinyl pipes, an adhesive is used to connect the vinyl pipes together for permanent bonding.

However, when vinyl pipes are used, not only does it take time to join the vinyl pipes together, but there is also the problem that a considerable amount of time is required from the completion of joining to the start of supply of tap water.

In addition, when removing temporary pipes, it is necessary to cut the pipes because they are permanently connected, which consumes time and labor costs. It is necessary to dispose of all the road-forming members as scraps, which poses many problems in terms of resource conservation and environmental protection.

On the other hand, the applicant of the present application has developed a temporary pipeline that solves the above-described problems, and has disclosed it as Japanese Patent Application Laid-Open No. 2012-122209 (Patent Document 3).

That is, although not shown, each of the temporary pipe lines is formed by suitably butting and fusing pipe bodies such as straight pipes, elbows, cheeses, pipes with different diameters, expansion pipes, etc. formed of polyethylene resin material, and at the ends. A temporary piping unit is formed by abutting and fusing a polyethylene resin cylindrical connecting portion to the open end of the pipe body located, and the cylindrical connecting portions of the temporary piping unit are opposed to each other to form the tip of the cylindrical connecting portion. The annular flange formed on the outer peripheral surface of the temporary piping unit is covered with an annular packing. It is formed by airtight connection with a packing and a housing type pipe joint.

In this way, the temporary pipe line is formed by airtightly connecting the temporary pipe units with the annular packing and the housing-type pipe joint. In addition, the temporary piping unit can be easily separated by simply removing the pipe joint and the annular packing. It has the advantage of being reusable.

By the way, in the renewal work and repair work of the water supply pipeline using the temporary pipeline described above, if there is no installation space for the temporary pipeline in the building such as an apartment building, the vertical pipeline that forms the temporary pipeline will be renewed. and installed outside the building only during the period of repair work.

That is, a plurality of vertical pipelines of the temporary pipeline are arranged in parallel at predetermined intervals outside the handrail walls and handrails provided in the exterior corridors and exterior stairs of buildings such as collective housing. Each of the vertical pipes and the meter unit equipped with a water meter installed in the meter box or pipe space of each dwelling unit in the building are connected by a water supply pipe composed of a water supply hose or the like. In order to prevent the fall of temporary piping units, etc., when constructing vertical pipes outside the building, a part of the piping unit is attached to the handrail wall and handrails installed in the outer corridors and outer stairs on each floor of the building. Fixed.

Basically, the water supply pipe is installed from the vertical pipe line to the inside of the meter box or the inside of the pipe space so as not to interfere with the passage of residents and to prevent children from playing pranks. It is installed in a suspended state along the wall of the outer corridor.

At this time, a flexible water supply hose is used for the water supply piping, which allows relatively free piping regardless of the distance or position between the vertical pipeline and the meter box or pipe space.

If a flexible water supply hose is used for the water supply pipe, the water supply hose has no rigidity. As described above, fixing fittings 100 for piping having various structures are used to fix to the ceiling surface or wall surface of the outer corridor (see, for example, Patent Documents 4 to 6).

However, the conventional pipe fixtures 100 shown in FIGS. 10A to 10C are all of a type in which the pipe fixtures 100 themselves are fixed to the ceiling surface or wall surface of a building using anchor bolts, screws, or the like. Therefore, when the renewal work or repair work of the water supply pipe is completed and the vertical pipe, the water supply pipe, and the pipe fixing bracket 100 are removed, holes will be made in the ceiling surface or wall surface of the building. There is a problem that construction is required, the burden on the worker increases, and the construction time is lengthened. Moreover, since the anchor bolts, screws, etc. must be driven into the ceiling surface and wall surface of the outer corridor using an electric tool such as an electric screwdriver, the worker's posture becomes unstable and the safety deteriorates.

In addition, in buildings such as collective housing, it is necessary to restore the current state after construction, and it may not be possible to drive anchor bolts, screws, etc. into the ceiling surface or wall surface of the outer corridor according to the client's request.

In this case, a rigid vinyl pipe is used in place of the flexible water supply hose, and the vinyl pipe is laid along the ceiling or wall surface of the outer corridor.

However, when vinyl pipes are used for water supply pipes, adhesives are used for connection. There is a problem that the pipe must be cut when removing the pipe, which consumes time and labor.

JP-A-10-306472 JP-A-11-107335 JP 2012-122209 A JP-A-11-241789 Japanese Patent Application Laid-Open No. 2001-108149 JP 2015-034608 A

The present invention has been made in view of such problems, and its object is to eliminate the need to drive anchor bolts, screws, etc. into the ceiling surface and wall surface of the outer corridor of the building, and to adhere to the connection of piping. A water supply suspension that does not use an agent, reduces the work load, shortens the construction time and improves safety, and shortens the construction period by eliminating repair work and restoration work on the building. It is to provide piping.

In order to achieve the above object, the hanging pipe for water supply according to claim 1 of the present invention is provided when performing renewal work or repair work on a water supply pipe laid in a building of several stories. A hanging pipe for water supply that connects the vertical pipe line of the temporary pipe line provided outside the building and the meter unit installed in the meter box or pipe space of each dwelling unit in the building and equipped with a water meter, A horizontal pipe that is placed in a horizontal position below the ceiling surface of the outer corridor of the building, the base end is connected to the vertical pipe line, and the tip end extends to the position near the wall surface of the outer corridor, and the tip of the horizontal pipe and a pipe joint provided with a locking portion, and a vertical posture arranged along the wall surface of the outer corridor, with the upper end connected to the pipe joint and the lower end connected to the meter unit It is stretched between the pipe, the vertical pipe line, and the pipe joint, one end is locked by the locking part of the pipe joint, and the other end is above the connection part of the vertical pipe line with the horizontal pipe. and a rope connected to the position portion, and is characterized in that the horizontal pipe and the vertical pipe are held by the rope stretched between the vertical pipe and the pipe joint. .

Claim 2 of the present invention provides a water supply suspension pipe according to claim 1, wherein the pipe joint is a 90° elbow joint formed integrally with the elbow joint. It is characterized in that it has a plate-shaped locking portion formed with a locking hole into which one end of the cable is inserted and locked.

The hanging pipe for water supply according to claim 3 of the present invention is the hanging pipe for water supply according to claim 1, wherein the vertical pipe is a vertical straight pipe whose upper end is connected to a pipe joint, A flexible water supply hose having an upper end connected to the lower end of the vertical straight pipe and having a lower end connected to the meter unit.

The hanging water supply pipe according to claim 4 of the present invention is the hanging water supply pipe according to claim 3, wherein the vertical straight pipe of the vertical pipe and the water supply hose or the vertical straight pipe It is characterized by providing a slide joint at the upper end or the lower end of the water supply hose.

According to claim 5 of the present invention, there is provided a water supply suspension pipe according to claim 1, wherein the cable is any one of a rope, a string, a wire, a belt, and a chain. There is

The hanging pipe for water supply according to claim 6 of the present invention is the hanging pipe for water supply according to claim 1, wherein the horizontal pipe, the pipe joint, and the upper end portion of the vertical pipe are connected and fixed in advance to form a unit. It is characterized by being transformed.

The hanging pipe for water supply of the present invention is arranged in a horizontal posture near the ceiling of the outer corridor of the building, the horizontal pipe whose base end is connected to the vertical pipe line, and the pipe joint connected to the tip part of the horizontal pipe a vertical pipe arranged along the wall surface of the outer corridor in a vertical posture, the upper end of which is connected to a pipe joint, and the lower end of which is connected to a meter unit attached to a water meter; and a rope stretched between the pipe joint, and the horizontal pipe and the vertical pipe are held by the rope. The work of driving into the ceiling surface or wall surface of the corridor is not required, and the adhesive is not used for connecting the pipes.
As a result, by using the hanging water supply pipe of the present invention, the work load can be reduced, the construction time can be shortened, and safety can be improved. It will be.

In addition, in the hanging water supply pipe of the present invention, the horizontal pipe, the pipe joint, and the upper end portion of the vertical pipe are connected and fixed in advance to form a unit, so that the construction time can be further shortened.

Furthermore, in the hanging water supply pipe of the present invention, since the vertical pipe is provided with a slide joint, even if the height position of the horizontal pipe changes slightly when the hanging water supply pipe is installed, the slide joint can be used. By adjusting the length, the lower end of the vertical pipe can be securely connected to the meter unit.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a piping layout diagram showing an example in which a temporary piping path is provided in a building such as an apartment complex using the hanging water supply piping according to the embodiment of the present invention. FIG. 4 is a schematic vertical cross-sectional view of a main part of a building showing a state in which a vertical pipe line of a temporary pipe line is fixed to a handrail wall of the building with a fixing bracket, and the vertical pipe line and the meter unit are connected by a hanging pipe for water supply. It is a front view of a temporary piping unit. It is a partially-omitted enlarged longitudinal front view of a temporary piping unit. FIG. 5 is a cross-sectional view taken along line AA of FIG. 4; It is a partially-omission enlarged front view of the hanging pipe for water supply. It is a partial notch front view of the principal part of the suspension pipe for water supply similarly. It is a partial notch front view of the principal part of the suspension pipe for water supply similarly. FIG. 10 is a schematic vertical cross-sectional view of a main part of a building showing a state in which a vertical pipe line and a meter unit are connected using a water supply suspension pipe according to another embodiment of the present invention; FIG. 10 is a perspective view of a conventional fixture for piping;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
FIG. 1 is a piping layout diagram showing an example in which a temporary pipeline L is installed in a housing complex such as an apartment building using a water supply suspension pipe 1 according to an embodiment of the present invention. When performing renewal work or repair work on the existing water supply pipe line (water supply pipe line) laid in a building B with several stories such as It is designed to allow renewal work and repair work of the pipeline, and it is connected to the existing water pipe (not shown) connected to the water supply tank and pump (both are not shown). and a plurality of temporary vertical pipelines connected to the temporary rooftop pipeline L1 and arranged in parallel from the roof of the building B to the lowest floor (F1) and L2.

The temporary rooftop pipeline L1 includes a straight pipe 2, a tee 3 (same diameter tee or different diameter tee), a housing-shaped pipe joint 4, a stop cock such as a ball valve (not shown), an elbow (not shown), It is provided with flexible joints (not shown) and the like, and is formed by sequentially connecting the members 2 and 3 with a housing-shaped pipe joint 4 . The temporary rooftop pipeline L1 is an existing water pipe (illustrated omitted), and tap water flows in from the existing water pipe.

On the other hand, each of the plurality of temporary vertical pipes L2 includes a temporary pipe unit 5, a straight pipe 2, an elbow 6, a stopcock 7 (ball valve), a housing-shaped pipe joint 4, an end cap 8, and the like. , the members 2, 5, 6, 7 and 8 are connected in series with a housing-shaped pipe joint 4. As shown in FIG. Each of these vertical pipelines L2 is arranged in parallel outside the outer corridor provided in building B, and is fixed to the handrail wall B1 of the outer corridor by means of fixtures 9 (see FIG. 2). ). The fixing bracket 9 is detachably fixed to the upper end of the handrail wall B1, and holds and fixes a portion of the vertical pipeline L2 arranged along the outer surface of the handrail wall B1.

As shown in FIGS. 3 and 4, the temporary pipe unit 5 used for the temporary vertical pipe line L2 is connected to a straight pipe body 10 made of synthetic resin and one end of the pipe body 10 by butt fusion W. a synthetic resin cheese 11, a synthetic resin cylindrical receptacle 12 connected by butt fusion W to the opposite end of the cheese 11 connected to the pipe main body 10, and the other end of the pipe main body 10. A cylindrical insertion port 13 made of synthetic resin, which is connected to the part by butt fusion W and is detachably attached to a socket 12 of another temporary piping unit 5 in an airtight state, and a T-shaped protrusion of the cheese 11 A synthetic resin cylindrical branch port 14 connected to 11a by butt fusion W, a joint 15 provided at the tip of the branch port 14, and a receptacle portion 12, which the operator wears. and a fall prevention means 16 detachably connected to a safety belt (not shown). The sockets 12 of the temporary piping units 5 are respectively detachably inserted in an airtight state, and the ends of the temporary piping units 5 are connected to each other with housing-shaped pipe joints 4 to connect them in series. there is

The joint 15 of the temporary piping unit 5 is, as shown in FIG. and a union nut 15d rotatably and axially movably fitted onto the short tube 15b.

In addition, the fall prevention means 16 of the temporary piping unit 5 is connected to a hook member (not shown) provided on a safety belt (not shown) worn by a worker when connecting the temporary piping units 5 to each other. As shown in FIGS. 5 and 6, it is detachably fitted on the outer peripheral surface of the small-diameter portion of the socket 12, and is formed of a band-shaped metal plate. A circular piping support fitting 17 which can be freely opened and closed by connecting the ends of two semicircular band portions 17a with a hinge 17b, and the free ends of the two band portions 17a of the piping support fitting 17 are connected to each other. A fastener 18 (bolt and nut) for fastening and fixing the pair of opposing fastening pieces 17c to each other to fasten and fix the pipe support fitting 17 to the outer peripheral surface of the socket 12, and a through hole 17d formed in the pair of fastening pieces 17c. and a metallic ring member 19 which is inserted into and engaged with.

The fall prevention means 16 is used not only to prevent the temporary pipe unit 5 from falling, but also to pipe the water supply suspension pipe 1 described later. is provided.

In addition to the other temporary piping unit 5, the socket 12 and the insertion opening 13 of the temporary piping unit 5 are provided with straight pipes 2, tee 3, elbows 6, stopcocks 7, end caps 8, and flexible pipes. A joint (not shown) or the like is detachably connected via a housing-shaped pipe joint 4 . Each end of the single member is provided with a cylindrical receiving port 12 and a cylindrical insertion port 13 in the same manner as the temporary piping unit 5 .

In addition, the length (height) of the temporary piping unit 5 is set to match the floor height of the building B. When the temporary piping unit 5 is arranged at the outside position, one temporary piping unit 5 is surely arranged on each floor of the building B, and the positions of the branch ports 14 and the joints 15 of the temporary piping unit 5 are always slightly above the ceiling surface B2 of each floor. It is positioned in a low position.

In the above embodiment, the temporary piping unit 5 as shown in FIGS. 3 and 4 is used as part of the temporary vertical piping L2, but in other embodiments, the temporary piping unit 5 is omitted, A temporary vertical pipeline L2 may be formed by connecting a plurality of straight pipes 2, cheeses 3, etc. in series with a housing-shaped pipe joint 4. FIG.

In the above embodiment, the socket 12 is provided at the end of the cheese 3 and the insertion port 13 is provided at the other end of the pipe body 10. However, in other embodiments, the end of the cheese 3 is inserted. A mouth 13 may be provided and a receptacle 12 may be provided at the other end of the tube body 10 .

The vertical pipe line L2 of the temporary pipe line L arranged outside the handrail wall B1 provided in the outer corridor of the building B is stored in the meter box S (or pipe space) of each dwelling unit of the building B. Each meter unit U equipped with a water meter M is connected by a water supply suspension pipe 1, and the tap water flowing in the vertical pipeline L2 is supplied to each dwelling unit by the water supply suspension pipe 1. (see Figure 2).

2 and 6 to 8 show a water supply suspension pipe 1 according to an embodiment of the present invention, and the water supply suspension pipe 1 is arranged outside the handrail wall B1 provided in the outer corridor of the building B. The vertical pipe line L2 of the installed temporary pipe line L and the meter unit U installed in the meter box S of each dwelling unit in the building B are connected.

That is, as shown in FIGS. 2 and 6, the water supply suspension pipe 1 is arranged in a horizontal position below the ceiling surface B2 of the outer corridor of the building B, and the base end is connected to the vertical pipe line L2. In addition, a lateral pipe 20 having a rigid tip portion extending to a position near the wall surface B3 of the outer corridor, a pipe joint 21 connected to the tip portion of the lateral pipe 20 and provided with a locking portion 21a, and a wall surface B3 of the outer corridor. A vertical pipe 22 arranged in a vertical posture along a vertical pipe 22 whose upper end is connected to a pipe joint 21 and whose lower end is connected to a meter unit U equipped with a water meter M, a vertical pipe L2 and a pipe One end is locked to the locking portion 21a of the pipe joint 21, and the other end is positioned above the connecting portion of the vertical pipe L2 to the horizontal pipe 20. and a cable 23 to be connected, and the horizontal pipe 20 and the vertical pipe 22 are held by the cable 23 stretched between the vertical pipe line L2 and the pipe joint 21. .

Specifically, the horizontal pipe 20 is adhesively joined to a horizontal straight pipe 20a formed of a polyethylene resin material and a base end portion of the horizontal straight pipe 20a, and a joint 15 of the temporary pipe unit 5 is attached to the outer peripheral surface of the distal end portion. A tubular male screw adapter 20b with a flange made of metal or synthetic resin and formed with a male screw to which the union nut 15d is detachably screwed. It is formed

The pipe joint 21 is a 90° elbow joint made of a polyethylene resin material, and the outer peripheral surface of the elbow joint is a plate formed with a locking hole 21b into which one end of the cable 23 is inserted and locked. A shaped locking portion 21a is integrally formed. One end of the pipe joint 21 is adhesively joined to the tip of the horizontal pipe 20 (the tip of the horizontal straight pipe 20a).

The vertical pipe 22 is formed of a polyethylene resin material, and is adhesively bonded to the vertical straight pipe 22a whose upper end is adhesively bonded to the other end of the pipe joint 21 and to the lower end of the vertical straight pipe 22a, A cylindrical male screw adapter 22b with a metal or synthetic resin collar having a male screw formed on the outer peripheral surface of the lower end, and a male screw adapter 22b provided at the lower end of the vertical straight tube 22a at the upper end. and a flexible water supply hose 22c whose part is connected to the meter unit U.

The water supply hose 22c is attached to and detached from a bendable metal or synthetic resin flexible tube _22c1 and _a male thread adapter 22b provided at the upper end of the flexible tube 22c1 and at the lower end of the vertical straight tube 22a. An upper union nut 22c- ₂ that is freely screwed and a lower union nut 22c- ₃ that is provided at the lower end of the flexible pipe 22c and is detachably screwed to the stopcock 31 of the meter unit U. .

The meter unit U is for mounting a water meter M connected to a water pipe in each dwelling unit. It has a slide joint 27, a primary side elbow 28, a pressure reducing valve 29, a stop cock 30, and the like.

In the horizontal pipe 20, the pipe joint 21, and the vertical pipe 22, the horizontal straight pipe 20a of the horizontal pipe 20 and the pipe joint 21 are adhesively joined, and the pipe joint 21 and the vertical pipe 22 are jointed vertically. It is adhesively joined to the pipe 22a and is in a unitized state.

The rope 23 is stretched between the vertical pipe line L2 and the pipe joint 21 in a tensioned state, and holds the horizontal pipe 20 and the vertical pipe 22 .

That is, one end of the cable 23 is inserted and locked into the locking portion 21a of the pipe joint 21, and the other end is connected to a portion of the vertical pipe line L2 located above the connecting portion with the horizontal pipe 20. , is stretched between the vertical pipeline L2 and the pipe joint 21 in a tense state. In this embodiment, the ropes 23 are synthetic fiber ropes. One end of the rope 21 is inserted and locked into a through hole 21b formed in the locking portion 21a of the pipe joint 21 to be retained. It is inserted through the ring member 19 and tied.

In place of the synthetic fiber rope, the rope 23 may be made of natural fiber or rubber rope, synthetic or natural fiber string or belt, metal wire, or metal or synthetic resin chain. may be used.

In the above embodiment, the horizontal straight pipe 20a, the pipe joint 21, and the vertical straight pipe 22a are each made of a polyethylene resin material. The pipes 22a may be made of other synthetic resin material (for example, vinyl resin material) or metal material.

In the above embodiment, the vertical pipe 22 is composed of the vertical straight pipe 22a, the male thread adapter 22b, and the water supply hose 22c. may be configured.

Furthermore, in the above embodiment, the fall prevention means 16 is provided with the ring member 19, but in other embodiments, the ring member 19 is omitted and the through hole 17c of the pipe support fitting 17 is fitted with a safety belt (shown in the figure). ), or the other end of the cable 23 may be inserted into the through hole 17c of the pipe support fitting 17 and locked.

Furthermore, in the above embodiment, the other end of the cable 23 is connected to the ring member 19 of the fall prevention means 19, but in other embodiments, the other end of the cable 23 is connected to temporary piping. It may be connected directly to the unit 5. In this case, the other end of the rope 23 is tied to a portion of the temporary piping unit 5 located above the connecting portion between the temporary piping unit 5 and the horizontal piping 20 .

Therefore, in the water supply suspension pipe 1 described above, after the vertical pipe line L2 is arranged outside the building B, the joint 15 of the temporary pipe unit 5 forming the vertical pipe line L2 and the inside of the meter box S By connecting the stop cock 31 of the meter unit U with the water supply suspension pipe 1, the tap water flowing in the vertical pipeline L2 can be supplied to each dwelling unit through the water supply suspension pipe 1. At this time, the horizontal pipe 20 and the vertical pipe 22 forming the hanging pipe 1 for water supply are held by the cable 23 stretched between the temporary pipe unit 5 and the pipe joint 21 under tension.

Since the water supply hanging pipe 1 is configured to hold the horizontal pipe 20 and the vertical pipe 22 by the rope 23, anchor bolts, screws, etc. are installed using an electric tool. and the work of driving into the wall surface B3 becomes unnecessary, and an adhesive is not used for connecting the pipes.
As a result, if the hanging pipe 1 for water supply is used, the work load can be reduced, the construction time can be shortened, and safety can be improved. become.

Further, in the water supply suspension pipe 1, the horizontal pipe 20, the pipe joint 21, and the vertical straight pipe 22a of the vertical pipe 22 are connected and fixed in advance to form a unit, so that the construction time can be further shortened. .

FIG. 9 shows a water supply suspension pipe 1 according to another embodiment of the present invention. is provided with a slide joint 31.

9 has the same structure as the suspended water supply pipe 1 shown in FIG. 2 except that a slide joint 31 is provided. The same reference numerals are given to the same members and portions as those of the water supply suspension pipe 1, and detailed description thereof will be omitted.

In the hanging water supply pipe 1 shown in FIG. 9, since the vertical pipe 22 is provided with the slide joint 31, even if the height position of the horizontal pipe 20 changes slightly when the hanging water supply pipe 1 is installed, By adjusting the length of the slide joint 31, the lower end of the vertical pipe 20 can be reliably connected to the meter unit U on which the water meter M is mounted.

In the above embodiment, the slide joint 31 is provided between the vertical straight pipe 22a of the vertical pipe 22 and the water supply hose 22c. A slide joint 31 may be provided at the lower end of the hose 22c.

1 is a hanging pipe for water supply 20 is a horizontal pipe 21 is a pipe joint 21a is a locking part of a pipe joint 22 is a vertical pipe 22a is a vertical straight pipe 22c is a water supply hose 23 is a cable B is a building B2 is an outer corridor Ceiling surface B3 is the wall surface of the outer corridor L is the temporary pipe L2 is the vertical pipe M is the water meter U is the meter unit

Claims (6)

Vertical pipe line (L2) of temporary pipe line (L) installed outside building (B) when performing renewal work or repair work of water supply pipe line laid in multi-story building (B) and a meter unit (U) installed in the meter box (S) or pipe space of each dwelling unit in the building (B) and equipped with a water meter (M) in the hanging pipe for water supply (1) It is arranged in a horizontal position below the ceiling surface (B2) of the outer corridor of the building (B), the base end is connected to the vertical pipe line (L2), and the tip end is the wall surface of the outer corridor ( B3) A lateral pipe (20) extending to a position near a position, a pipe joint (21) connected to the tip of the lateral pipe (20) and provided with a locking portion (21a), and along the wall surface (B3) of the outer corridor a vertical pipe (22) arranged in a vertical posture with its upper end connected to a pipe joint (21) and its lower end connected to a meter unit (U); a vertical pipe line (L2) and a pipe and a joint (21), one end of which is locked by the locking portion (21a) of the pipe joint (21), and the other end of which is a horizontal pipe (20) of the vertical pipe line (L2). and a cable (23) connected to a portion located above the connecting portion with the cable (23) stretched between the vertical pipeline (L2) and the pipe joint (21). ) to hold the horizontal pipe (20) and the vertical pipe (22). The pipe joint (21) consists of a 90° elbow joint, and a plate formed with a locking hole (21b) formed integrally with the elbow joint and into which one end of the cable (23) is inserted and locked. 2. The hanging pipe for water supply according to claim 1, characterized in that it has a locking portion (21a) of a shape. The vertical pipe (22) has a vertical straight pipe (22a) whose upper end is connected to the pipe joint (21), and whose upper end is connected to the lower end of the vertical straight pipe (22a). The hanging pipe for water supply according to claim 1, characterized by comprising a flexible water supply hose (22c) connected to the meter unit (U). A slide joint (31) is provided between the vertical straight pipe (22a) of the vertical pipe (22) and the water supply hose (22c), or at the upper end of the vertical straight pipe (22a) or the lower end of the water supply hose (22c). The hanging pipe for water supply according to claim 3, characterized in that a is provided. 2. The suspension pipe for water supply according to claim 1, characterized in that said cable (23) is any one of a rope, string, wire, belt or chain. 2. The hanging pipe for water supply according to claim 1, wherein the horizontal pipe (20), the pipe joint (21) and the upper end portion of the vertical pipe (22) are previously connected and fixed to form a unit.

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