JP6808193B2 - Temporary piping unit and temporary piping path using it - Google Patents

Description

The present invention is a temporary construction used when performing renewal work, repair work, etc. of water supply pipes (water supply pipes) laid in several-story buildings such as apartments, schools, hospitals, and buildings. It is possible to easily and quickly form a temporary piping line by improving the piping unit and the temporary piping unit that forms the vertical piping path of the temporary piping line. The water outage time that occurs during renewal work and repair work of water supply pipes can be shortened as much as possible so as not to interfere with the daily life of residents, and it is extremely short after use. The present invention relates to a temporary piping unit in which a temporary piping line can be easily disassembled and the temporary piping unit after disassembly can be reused, and a temporary piping line using the temporary piping unit.

Generally, in a water supply pipe line laid in a multi-story building such as a condominium, a school, a hospital, a building, etc., if it is used for many years, it will occur in the water supply pipe such as a galvanized steel pipe. Rust caused by red water outflow, slimming in the pipe, bacterial outbreak, decrease in flow rate and water pressure, scale outbreak, scale outflow, etc., resulting in deterioration of water quality, hygiene problems, and packing. Various adverse effects such as water leakage accidents will occur due to deterioration of the building.

In particular, in condominiums and other condominiums, the water supply entity (Waterworks Bureau) does not directly manage the water supply piping line, and usually the management company or the owner of the condominium is left to manage it. As a result, the maintenance of water supply pipes tends to be inadequate, and as a result, the water supply pipes are aging more than expected due to aging, and many people need to meet the demand for safe and secure water supply. It is becoming necessary to renew the water supply pipe line.

In addition, due to the increasing demand for safe water, there is an increasing need to switch the water supply method of apartment houses from the tank pumping method to the direct pressure water supply method, and the water supply piping line is updated due to the switching of the water supply method. Is increasing.

By the way, in the renewal of water supply pipes laid indoors such as apartment houses, it is not allowed to renew the pipes due to long-term water outage due to the lives of residents. Therefore, in the conventional renewal work of the water supply pipe line, a method of providing a so-called temporary pipe line is adopted (see, for example, Patent Document 1 and Patent Document 2).

In general, in temporary pipe lines for renewal work of water supply pipe lines, vinyl pipes, polyethylene pipes, etc., which are lightweight and have excellent handleability, are widely used instead of metal pipes such as steel pipes. In particular, when a temporary piping path is laid using vinyl pipes, an adhesive is used to connect the vinyl pipes to each other for permanent connection.

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

In addition, when removing the temporary pipe line, the pipe must be cut because it is permanently connected, which consumes time and labor and cannot be reused, so the temporary pipe is removed after the removal. It is necessary to dispose of all the road forming members as scrap, which poses many problems in terms of resource saving and environmental conservation.

On the other hand, the applicant has developed a temporary piping line that solves the above-mentioned problems, and has developed Japanese Patent Application Laid-Open No. 2003-0976766 (Patent Document 3), Japanese Patent Application Laid-Open No. 2004-1000774 (Patent Document 4), and Japanese Patent Application Laid-Open No. 2012-. It is published as Gazette No. 122209 (Patent Document 5).

That is, although each of the temporary piping lines is not shown, both ends of a pipe body made of polyethylene resin (straight pipe, elbow, cheese, different diameter pipe, expansion pipe, etc.) or a plurality of pipe bodies are connected. Cylindrical connection parts made of polyethylene resin are connected to both ends of the temporary piping unit formed by butt fusion, and the pipe body to be connected or the tubular connection part of the temporary piping unit is made to face each other, and the pipes are made to face each other. An annular packing is placed on the annular flange formed on the outer peripheral surface of the tip of the shape connection portion, and the annular flange and the annular packing are embraced and fixed by a halved housing-shaped pipe joint to tighten and fix the pipe body. It is formed by airtightly connecting each other or temporary piping units with an annular packing and a housing-type pipe joint.

In this way, the temporary piping line is formed by airtightly connecting the pipe bodies or the temporary piping units with packings and pipe joints, so that the temporary piping line can be easily formed and the construction period. The pipe body can be easily separated by simply removing the pipe joint, and the pipe body, temporary piping unit, and pipe joint are hardly damaged when the temporary pipe path is disassembled, and can be reused. There is an advantage that it can be done.

However, even in the temporary piping line, there are still problems to be solved.

That is, in the temporary piping path, when connecting the pipe bodies or the temporary piping units to each other, an annular packing is previously fitted to the pipe body or the temporary piping unit, and the annular packing is abutted against the tubular connection portion. Since it is necessary to cover both flanges evenly and align the center position of the annular packing in the width direction with the butt surface of the flange of the tubular connection, it takes a surprising amount of time to connect the pipe body and the temporary piping unit. There was a problem that it would take. Moreover, since the inner diameter of the annular packing is formed to be smaller than the outer diameter of the flange portion of the tubular connection portion, the above-mentioned work must be performed with the packing extended and expanded, and the pipe body or temporary installation must be performed. It will take more time to connect the piping unit.

Further, in the temporary piping path, when the pipe bodies or the temporary piping units are connected to each other by the packing and the pipe joint, the packing may bite into the pipe joint, and the sealing property of the packing is impaired to cause water leakage. There is also.

Further, in the temporary piping path, since the flange portion of the tubular connection portion protrudes outward from the outer peripheral surface of the pipe body, scratches and small foreign matter (dust) on the outer peripheral surface of the flange portion during handling of the pipe body. , Sand, dust, etc.) is extremely easy to adhere to, and if scratches or foreign matter adhere to the collar, even if the outer peripheral surface of the collar is covered with packing to seal it, there is a problem that the sealing performance is greatly impaired. ..

Japanese Unexamined Patent Publication No. 10-306472 Japanese Unexamined Patent Publication No. 11-107335 Japanese Unexamined Patent Publication No. 2003-097766 Japanese Unexamined Patent Publication No. 2004-1000774 Japanese Unexamined Patent Publication No. 2012-122209

The present invention has been made in view of such problems, and an object of the present invention is to easily and quickly form a temporary pipe line, to significantly shorten the construction period, and to renew the water supply pipe line. The water outage time that occurs during construction and repair work can be shortened as much as possible so as not to interfere with the daily life of the resident, and the formed temporary piping line has excellent sealing properties, and after use, it is finished. It is an object of the present invention to provide a temporary piping unit capable of disassembling a temporary piping line extremely easily and reusing the temporary piping unit after disassembly, and a temporary piping line using the temporary piping unit.

In order to achieve the above object, the temporary piping unit according to the present invention is a vertical piping line of a temporary piping line provided when renewing or repairing a water supply piping line laid in a multi-story building. Is a temporary piping unit that is connected in series, and the temporary piping unit is made of a linear pipe body made of synthetic resin and made of synthetic resin connected to one end of the pipe body by butt fusion. Connected to the other end of the pipe body or the other end of the pipe body or the pipe body of the cheese, which is provided at the other end of the pipe body or the opposite end connected to the pipe body of the cheese. A tubular insertion port that is provided on one of the opposite ends and is detachably inserted into the receiving port of another temporary piping unit in an airtight state, and a T-shaped protrusion of cheese. It is provided with a tubular branch port and a joint provided at the tip of the branch port, and is covered with a halved housing-shaped pipe joint on the outer peripheral surface of the receiving port and the outer peripheral surface of the insertion port. An annular flange portion that is tightly tightened and fixed in a mated state is formed, and the socket and the insertion port are provided on at least one of the outer end surface of the flange portion of the socket or the outer end surface of the flange of the insertion port. It is characterized by forming a separation groove into which a tool for pulling is inserted .

The socket is formed by abutting and fusing a tubular member made of synthetic resin to either the other end of the tube body or the opposite end connected to the cheese tube body, and the insertion. The mouth is formed by abutting and fusing a tubular member made of synthetic resin to either the other end of the pipe body or the opposite end connected to the cheese pipe body, and further, the branch port. Is preferably formed by abutting and fusing a tubular member made of synthetic resin to a T-shaped protrusion of cheese.

The socket is integrally formed with the tube body or cheese in either the tube body or cheese, and the insertion port is integrally formed with the tube body or cheese in either the tube body or cheese. Is preferable.

The length of the temporary piping unit is preferably set to a length that matches the floor height of the building.

A receiving tube portion having a diameter larger than that of the base end portion of the receiving port is formed at the tip end portion of the receiving port, and an insertion tube portion that is detachably inserted into the receiving tube portion at the tip end portion of the insertion port in an airtight state. Is formed, and one or more rows of annular O-ring grooves into which the O-ring is fitted are formed on either the inner peripheral surface of the receiving cylinder portion or the outer peripheral surface of the inserting cylinder portion, and the O-ring grooves are formed. It is preferable to fit an O-ring for sealing.

It is preferable to form the inner peripheral edge portion of the receiving tube portion of the receiving port on a tapered surface and chamfer the outer peripheral edge portion of the inserting tube portion of the insertion port.

Further, in order to achieve the above object, the temporary piping line according to the present invention is provided at the time of renewal work or repair work of the water supply piping line laid in the building of several stories, and at least the vertical piping line. The vertical piping line of the temporary piping line is a plurality of temporary piping units according to at least any one of claims 1 to 6, a receiving port of the temporary piping unit, and other temporary piping lines. It is equipped with a halved housing-type pipe joint that is attached to the pipe unit insertion port or the temporary pipe unit insertion port and the socket of another temporary piping unit and connects the temporary piping units in series. There is a feature.

The housing-type pipe joint is provided at the end of the socket of the temporary piping unit and the end of the insertion port of another temporary piping unit or the end of the insertion port of the temporary piping unit and the end of the socket of another temporary piping unit. A bifurcated annular housing consisting of a pair of semi-circular housings to be covered, a connecting pin for rotatably connecting the connecting pieces provided at one end of the pair of semi-circular housings, and one semi-circular housing. A bolt that is rotatably provided on the tightening piece provided at the other end and is inserted between the bifurcated tightening pieces provided at the other end of the other semi-circular housing and a bifurcated bolt that is screwed to the bolt. A tightening tool consisting of a nut that is tightly locked to the tightening piece in a surface contact state is provided, and the surface of the bifurcated tightening piece that is locked to the nut is inclined upward as it faces outward. It is preferably formed on an inclined surface.

The vertical piping path of the temporary piping path is further provided with a water stop valve that is detachably connected to the temporary piping unit, and the water stop valve is detachably attached to the insertion port of the temporary piping unit in an airtight state. It is equipped with a tubular receiving port to be used and a tubular insertion port that can be detachably inserted into the receiving port of another temporary piping unit in an airtight state, and is provided with a water stopcock receiving port and a temporary piping unit insertion port or water stop. It is preferable that the plug insertion port and the receiving port of another temporary piping unit are connected by a housing-type pipe joint.

One end of the vertical piping line of the temporary piping line is detachably connected to a joint provided at the tip of the branch port of the temporary piping unit, and the other end is attached to and detached from the water meter or meter unit of each dwelling unit in the building. It is preferable to further provide a flexible water supply hose that is freely connected.

According to the present invention, a receiving port is provided at one end of a temporary piping unit formed by connecting a straight pipe body made of synthetic resin, cheese, etc. in series, and an insertion port is provided at the other end of the temporary piping unit. Therefore, the insertion port of another temporary piping unit is inserted into the receiving port of the temporary piping unit, and the receiving port of another temporary piping unit is further inserted into the insertion port of the temporary piping unit, and the receiving port and the insertion port are of the housing type. Temporary piping units can be connected in series in sequence simply by installing a pipe joint. As a result, according to the present invention, the vertical piping of the temporary piping path is compared with the conventional temporary piping path in which the pipe bodies or the temporary piping units are connected to each other by an annular packing and a housing type pipe joint. Roads can be formed easily and quickly, and can be laid in buildings with high efficiency, shortening the construction period and reducing costs.

Further, according to the present invention, since the length of the temporary piping unit is set to the length according to the floor height of the building, one temporary piping unit can be reliably arranged on each floor of the building. , It becomes easy to connect the branch port of the temporary piping unit to the water meter or meter unit of each dwelling unit.

Further, according to the present invention, on either the inner peripheral surface of the receiving cylinder portion formed at the tip end portion of the receiving port of the temporary piping unit or the outer peripheral surface of the inserting cylinder portion formed at the tip end portion of the insertion port of the temporary piping unit. , One or more rows of annular O-ring grooves are formed, the O-ring for sealing is fitted into the O-ring groove, and the space between the receiving port and the insertion port is sealed by the O-ring. Unlike the piping path, the annular packing does not bite into the pipe joint and the sealing property of the packing is not impaired, and the sealing property is excellent. In particular, when a plurality of rows of O-ring grooves are formed and the O-rings are fitted into the O-ring grooves, the sealing property is further improved. Further, when the O-ring is attached to the outer peripheral surface of the insertion cylinder portion, the annular flange portion protrudes outward from the outer peripheral surface of the insertion cylinder portion, so that during handling of the temporary piping unit. It is possible to prevent scratches and foreign matter from being attached to the outer peripheral surface of the insertion cylinder portion and the O-ring, and to prevent the sealing property from being impaired. Further, when the O-ring is attached to the inner peripheral surface of the receiving cylinder portion, it becomes more difficult for the O-ring to be scratched or foreign matter is attached.

Further, according to the present invention, a receiving cylinder portion having a diameter larger than that of the base end portion of the receiving portion is formed at the tip end portion of the receiving port of the temporary piping unit, and the inner peripheral edge portion of the receiving cylinder portion is formed on a tapered surface. Since the outer peripheral edge of the insertion cylinder is chamfered, the insertion port can be easily and easily inserted into the receiving port, and the connection work time can be shortened.

Further, according to the present invention, the temporary piping unit can be easily separated by simply removing the housing type pipe joint and pulling out the insertion port of the temporary piping unit from the receiving port of another temporary piping unit. The temporary piping path can be easily removed, and each member such as the temporary piping unit and the pipe joint is hardly damaged at the time of removal. As a result, each member such as the temporary piping unit and the pipe joint is reused. The rate will be greatly improved, and it will be possible to make a great contribution toward the realization of a so-called recycling society. Moreover, since the temporary piping unit is made of synthetic resin (polyethylene resin), it is highly durable, and even if it is roughly handled during temporary piping work, the temporary piping unit is less likely to be damaged and can be reused many times. Can be increased and is economical. Moreover, since it is made of synthetic resin (made of polyethylene resin), the material can be recycled almost 100%, which can contribute to resource saving.

Further, according to the present invention, a tool for pulling the socket and the insertion port apart from at least one of the outer end surface of the flange portion of the receiving cylinder portion of the temporary piping unit or the outer end surface of the flange portion of the insertion cylinder portion ( For example, since a separation groove into which a flat-blade screwdriver) is inserted is formed, even if the insertion port of another temporary piping unit is firmly inserted into the receiving port of the temporary piping unit, a flat-blade screwdriver or the like is formed in the separation groove. The socket and the insertion slot can be easily separated by inserting the tool of.

Further, according to the present invention, the housing-type pipe joint for connecting the temporary piping units or the temporary piping unit and the water diversion plug is divided into a pair of semi-circular housings and a pair of semi-circular housings. A connecting pin for rotatably connecting the connecting pieces provided at one end of the housing and a tightening piece provided at the other end of one semi-circular housing are rotatably provided for the other semi-circular housing. A tightening tool consisting of a bolt that is inserted and locked between the bifurcated tightening pieces provided at the other end and a nut that is screwed to the bolt and tightly locked to the bifurcated tightening piece in a surface contact state. Since the surface of the bifurcated tightening piece that is locked to the nut is formed on the locking surface that is inclined upward as it goes outward, the nut loosens with respect to the bolt and the bolt is bifurcated. Even if an attempt is made to rotate in the direction of coming out of the shape of the tightening piece, the nut can be locked to the locking surface of the tightening piece to prevent the bolt from rotating, and as a result, the annular housing is opened. It is possible to prevent the temporary piping unit from coming off.

Further, according to the present invention, a water stop valve connected to the temporary piping unit is detachably inserted into the insertion port of the temporary piping unit in an airtight state, and a receiving port of another temporary piping unit. Is provided with a tubular insertion port that can be detachably inserted in an airtight state, so that it can be easily and quickly connected to a temporary transfer unit.

Further, according to the present invention, a joint provided at the tip of a branch port of the temporary piping unit and a flexible water supply hose that is detachably connected to a water meter or a meter unit of each dwelling unit in the building are provided. Therefore, the temporary piping unit can be connected to the water meter or the like easily and quickly.

It is a piping split diagram which shows an example which provided the temporary piping passage using the temporary piping unit which concerns on embodiment of this invention in a building of an apartment house such as an apartment. It is a front view of the temporary piping unit. It is an enlarged vertical sectional front view which a part of the temporary piping unit is omitted. It is an enlarged bottom view of the temporary piping unit. It is a front view which shows another example of a temporary piping unit. It is a partially omitted enlarged vertical sectional front view which shows still another example of a temporary piping unit. It is a perspective view of the housing type pipe joint. It is a vertical sectional front view of a housing type pipe joint. It is a vertical sectional side view of a housing type pipe joint. It is a front view of a water stopcock. It is a vertical sectional front view of a water stopcock. It is a partially omitted vertical sectional front view of a state in which a plurality of temporary piping units are connected in series by a housing type pipe joint. It is an enlarged view of the main part which shows the state which connected the temporary piping unit to each other. It is an enlarged sectional view of the main part which shows the state which connected the temporary piping unit to each other. It is a partially omitted front view of the state where the water stopcock is interposed between the temporary piping units and connected to the temporary piping unit by a housing type pipe joint. It is a partially omitted sectional view of a state in which a water stopcock is interposed between the temporary piping units and connected to the temporary piping unit by a housing type pipe joint. Each member forming the temporary piping path is shown, (a) is a front view of a straight pipe provided with a socket and an insertion port, (b) is a front view of an elbow provided with a socket and an insertion port, and (c) is a front view of the socket and the insertion port. The front view of the cheese provided with the insertion port, (d) is the front view of the flexible joint provided with the socket and the insertion port, (e) is the front view of the reducer provided with the socket and the insertion port, and (f) is the front view of the receiver. It is a front view of the provided end cap. It is a piping allocation diagram which shows another example which provided the temporary piping passage using the temporary piping unit which concerns on embodiment of this invention in a building of an apartment house such as an apartment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a piping layout diagram showing an example in which a temporary piping line L using the temporary piping unit 1 according to the embodiment of the present invention is provided in an apartment house or the like, and the temporary piping line L is a joint housing or the like. When renewing or repairing the existing water supply pipe (water supply pipe) laid in building B, renewing or repairing the water supply pipe without interrupting water for a long time by laying it in building B Temporary roof piping line L1 connected to the existing water pipe W connected to the pump or tank (both not shown) and arranged on the roof of building B, and temporary construction. It is provided with a plurality of temporary vertical pipe lines L2 connected to the roof pipe line L1 of the building B and arranged from the roof of the building B to the lowest floor.

The temporary vertical pipe line L2 is arranged in the pipe shaft (inside the pipe space) provided in the building B, or if there is no installation space in the pipe shaft, the period of renewal work or repair work. Only the inside is arranged vertically on the outside of the balcony of the building B.

The temporary roof pipe L1 includes a straight pipe 2, an elbow 3, cheese 4 (same diameter cheese or different diameter cheese), a water stop valve 5 (ball valve), a flexible joint 6, a reducer 7, and a housing type pipe joint. 8 and the like are provided, and the members 2 to 7 are formed by sequentially connecting the members 2 to 7 with a housing type pipe joint 8 as shown in FIG. This temporary roof pipe L1 is connected to a member located on the most upstream side, in this example, an existing water pipe W in which a straight pipe 2 is connected to a pump or a tank (both not shown) via a VS joint 9. It is connected so that tap water can flow in from the existing water pipe W.

On the other hand, the temporary vertical piping path L2 includes a temporary piping unit 1, a straight pipe 2, an elbow 3, a water stop valve 5 (ball valve), a reducer 7, a housing-type pipe joint 8, an end cap 10, and a water supply hose 11. The members 1, 2, 3, 5, 7, 10 (excluding the water supply hose 11) are connected in series with a housing-type pipe joint 8 as shown in FIG. 1, and each temporary installation is provided. It is formed by connecting the piping unit 1 and the water meter M (or meter unit) of each dwelling unit in the building B with a water supply hose 11. In this temporary vertical pipe line L2, a member located on the most upstream side, in this example, a water stop valve 5 or a reducer 7 is connected to the cheese 4 of the temporary roof pipe line L1 via a housing type pipe joint 8. Tap water flows in from the temporary roof pipe L1.

As shown in FIGS. 2 and 3, the temporary piping unit 1 includes a linear pipe body 12 made of synthetic resin and a synthetic resin cheese 13 connected to one end of the pipe body 12 by butt fusion F. , A tubular receiving port 14 provided at either the other end of the pipe body 12 or the opposite end connected to the pipe body 12 of the cheese 13, and the other end of the pipe body 12 or the pipe of the cheese 13. A tubular insertion port 15 provided at either end of the opposite end connected to the main body 12 and detachably attached to the receiving port 14 of the other temporary piping unit 1 in an airtight state, and a cheese 13 A tubular branch port 16 provided in the T-shaped projecting portion 13a and a joint 17 provided at the tip of the branch port 16 are provided, and the receiving port 14 has an insertion port 15 of another temporary piping unit 1. Further, the receiving ports 14 of the other temporary piping units 1 are detachably inserted into the insertion ports 15 in an airtight state and connected in series. In addition to the other temporary piping units 1, the receiving port 14 and the insertion port 15 of the temporary piping unit 1 have a straight pipe 2, an elbow 3, a cheese 4, a water stopcock 5, a flexible joint 6, and a reducer, which are single members. 7. The end cap 10 and the like are detachably connected via a housing-type pipe joint 8.

The receiving port 14 is formed by abutting and fusing a tubular member made of synthetic resin to either the other end of the tube body 12 or the opposite end connected to the tube body 12 of the cheese 13. Further, the insertion port 15 abuts and fuses a tubular member made of synthetic resin to either the other end of the tube body 12 or the opposite end connected to the tube body 12 of the cheese 13. Further, the branch port 16 is formed by abutting and fusing F of a tubular member made of synthetic resin to a T-shaped protruding portion 13a of cheese 13.

In this embodiment, the temporary piping unit 1 has a pipe body 12, cheese 13, a receiving port 14, an insertion port 15 and a branch port 16 all formed of a polyethylene resin material, and one end of the pipe body 12 (FIG. 2 and the upper end of the tube body 12 shown in FIG. 3) the cheese 13, and the opposite end of the cheese 13 connected to the tube body 12 (the upper end of the cheese 13) the receiving port 14 and further the tube. The other end of the main body 12 (the lower end of the pipe main body 12 shown in FIGS. 2 and 3) is abutted with the insertion port 15, and the T-shaped projecting portion 13a of the cheese 13 is abutted with the branch port 16 provided with the joint 17. It is formed by connecting by fusion F.

Further, the length (height) of the temporary piping unit 1 is set to a length that matches the floor height of the building B, and each temporary piping unit 1 is vertically connected to the pipe shaft of the building B. When arranged inside or outside the balcony, one temporary piping unit 1 is securely arranged on each floor of the building B, and the position of the branch port 16 of the temporary piping unit 1 is always immediately above the floor surface of each floor. It is designed to be located between the floor and the floor.

In this embodiment, the length (height) of the temporary piping unit 1 is set to 2600 mm to 2800 mm, respectively.

Further, a receiving cylinder portion 14a having a diameter larger than that of the base end portion of the receiving port 14 is integrally formed at the tip end portion of the receiving port 14, and another temporary piping unit is formed at the tip end portion of the insertion port 15. An insertion tube portion 15a that is detachably inserted and detached from the receiving tube portion 14a of the receiving port 14 of 1 is integrally formed, and the inner peripheral surface of the receiving tube portion 14a or the outer circumference of the inserting tube portion 15a. One or more rows of annular O-ring grooves into which the O-rings 18 are fitted are formed on either one of the surfaces.

In this embodiment, as shown in FIGS. 3, 12, and 14, two rows of annular O-ring grooves 15b are formed on the outer peripheral surface of the insertion tube portion 15a, and the O-rings 18 are fitted into both O-ring grooves 15b. An O-ring 18 seals between the inner peripheral surface of the receiving cylinder portion 14a of the receiving port 14 and the outer peripheral surface of the inserting cylinder portion 15a of the insertion port 15.

Further, a tapered surface 14b that gradually reduces in diameter as it goes inward is formed on the inner peripheral edge portion of the receiving tube portion 14a of the receiving port 14, and the outer peripheral edge portion of the inserting tube portion 15a of the insertion port 15 is formed. The chamfering 15c is provided so that the receiving port 14 of the temporary piping unit 1 and the insertion port 15 of another temporary piping unit 1 can be easily and easily inserted and removed.

Further, as shown in FIGS. 12 and 14, the outer peripheral surface of the receiving cylinder portion 14a of the receiving port 14 and the outer peripheral surface adjacent to the inserting cylinder portion 15a of the insertion port 15 are provided with a split-shaped housing-shaped pipe joint 8. An annular flange portions 14c and 15d are formed, which are covered and butt-tightened and fixed in close contact with each other.

Further, it is butt-inserted into at least one of the outer end surface of the flange portion 14c of the receiving cylinder portion 14a of the receiving port 14 or the outer end surface of the flange portion 15d of the inserting cylinder portion 15a of the insertion port 15. One or a plurality of separation grooves 15e into which a tool (such as a flat-blade screwdriver) for separating the receiving port 14 and the insertion port 15 are inserted are formed.

In this embodiment, as shown in FIGS. 4 and 14, two separation grooves 15e are formed at 180-degree intervals on the outer end surface of the flange portion 15d of the insertion cylinder portion 15a formed in the insertion port 15.

Then, as shown in FIG. 3, the joint 17 provided at the branch port 16 of the temporary piping unit 1 has a tubular main body 17b that is inserted into the tip end portion of the branch port 16 and is prevented from coming off by a stop nut 17a. The main body 17b is provided with a union nut 17c that is rotatably and movably fitted in the axial direction, and has a structure similar to that of a conventionally known metal union joint.

In the above embodiment, the tubular receiving port 14 is provided at the end of the cheese 13, and the tubular insertion port 15 is provided at the other end of the tube body 12, but in other embodiments, the tubular insertion port 15 is provided. May provide a tubular insertion port 15 at the end of the cheese 13 and a tubular receiving port 14 at the other end of the tube body 12, as shown in FIG.

Further, in the above embodiment, the receiving port 14 and the insertion port 15 are formed by abutting and fusing F of a tubular member made of polyethylene resin to cheese 13 and a pipe body 12, respectively, but in other embodiments, they are formed. , As shown in FIG. 6, the receiving port 14 may be formed integrally with the cheese 13 (or the tube body 12), and the insertion port 15 may be formed integrally with the tube body 12 (or the cheese 13).

Further, in the above embodiment, two rows of annular O-ring grooves 15b are formed on the outer peripheral surface of the insertion tube portion 15a, but in other embodiments, although not shown, the insertion tube portion 15a is formed. Only one annular O-ring groove 15b may be formed on the outer peripheral surface of the receiving cylinder portion 14a, or one or a plurality of annular O-ring grooves may be formed on the inner peripheral surface of the receiving cylinder portion 14a.

In addition, in the above embodiment, a separation groove 15e into which a tool such as a flat-blade screwdriver is inserted is formed on the outer end surface of the flange portion 15d of the insertion cylinder portion 15a, but in other embodiments, the figure is shown. Although not shown, one or a plurality of separation grooves may be formed on the outer end surface of the flange portion 14c of the receiving cylinder portion 14a, or the outer end surface of the flange portion 14c of the receiving cylinder portion 14a and the insertion cylinder portion 15a. One or a plurality of separation grooves may be formed on both the outer end faces of the flange portion 15d.

The housing-type pipe joint 8 connects the temporary piping units 1 to each other in series, and also connects the temporary piping unit 1 and the water stopcock 5, and the temporary piping unit 1 and the single members 2, 3, 4, 7, 10. Alternatively, the single members 2, 3, 4, 7, 10 and the like are detachably connected to each other.

That is, as shown in FIGS. 7 to 9 and 12 to 14, the housing-type pipe joint 8 has, for example, both flanges 14c of the receiving port 14 of the temporary piping unit 1 and the insertion port 15 of another temporary piping unit 1. A pair of semi-circular housings 19', 19 made of a polyethylene resin material that covers both flanges 15d, 14c, etc. of the insertion port 15 of the temporary piping unit 1 or the receiving port 14 of another temporary piping unit 1. A bifurcated annular housing 19 made of ′, a connecting piece 19a provided at one end of one semicircular housing 19 ′, and a bifurcated connecting piece 19a provided at one end of the other semicircular housing 19 ′. A connecting pin 20 that is rotatably connected and a bifurcated tightening piece 19b provided at the other end of one semicircular housing 19'are rotatably provided via a mounting pin 21 and the other half circle. A bolt 22a inserted between the bifurcated tightening pieces 19b provided at the other end of the housing 19'and a nut 22b screwed onto the bolt 22a and locked to the bifurcated tightening piece 19b in a surface contact state. It is provided with a fastener 22 made of.

Further, as shown in FIG. 8, in the housing type pipe joint 8, the surface of the semicircular housing 19'that is locked to the nut 22b of the bifurcated tightening piece 19b is inclined upward as it is directed outward. It is formed on the surface 19c, and even if the nut 22b loosens with respect to the bolt 22a and the bolt 22a tries to rotate in the direction of coming out from between the bifurcated tightening pieces 19b, the nut 22b engages with the inclined surface 19c of the tightening piece 19b. It is stopped so that the bolt 22a can be prevented from rotating.

The stop cock 5, removable for example with freely cylindrical insert opening 27 which is inserted 'removable airtightly into receptacle 14 of the temporary pipe unit 1, in an airtight state of the inserted port 15 other temporary pipe unit 1 and a freely cylindrical socket 23 which is inserted ', adapted to be connected to the temporary pipe unit 1 and unitary member 2,3,4,7,10 or the like by the pipe joint 8-shaped housing There is.

That is, as shown in FIGS. 10, 11, 15, and 16, the water stop valve 5 has a tubular receiving port 23'in which the insertion port 15 of the temporary piping unit 1 is detachably inserted in an airtight state. A metal main body 23, a metal ball 25 having a water passage hole 25a airtightly and rotatably housed in the main body 23 via a sheet 24, and a side opposite to the receiving port 23'of the main body 23. A metal tubular ball retainer 27 having a tubular insertion port 27'that is screwed to the end of the pipe via an O-ring 26 and is detachably inserted into the receiving port 14 of the temporary piping unit 1 in an airtight state. A metal valve rod 29 that is rotatably inserted into the main body 23 via an O-ring 28 to rotate the ball 25, and a metal valve rod 29 that is screwed onto the main body 23 to prevent the valve rod 29 from coming off. It is provided with a valve rod retainer 30, and has a ball valve structure.

A taper that gradually reduces in diameter toward the inside of the receiving port 23'so that the insertion port 15 of the temporary piping unit 1 can be easily and easily inserted into the inner peripheral edge of the receiving port 23'of the water stop valve 5. A surface 23a is formed, and the outer peripheral surface of the receiving port 23'of the water stopcock 5 is covered with a housing-shaped pipe joint 8 and has an annular flange portion 15d formed at the insertion port 15 of the temporary piping unit 1. An annular flange portion 23b that is fastened and fixed together is formed.

Further, a chamfer 27a is provided on the outer peripheral edge of the insertion port 27'of the water stop valve 5 so that the insertion port 27' can be easily and easily inserted into the receiving port 14 of the temporary piping unit 1. Further, two rows of annular O-ring grooves 27b are formed on the outer peripheral surface of the insertion port 27'of the water stop valve 5, and the O-ring 31 is fitted in each O-ring groove 27b.

Then, on the outer peripheral surface of the water stop valve 5 adjacent to the insertion port 27'of the ball retainer 27, an annular flange portion 14c formed in the receiving port 14 of the temporary piping unit 1 covered with a housing-shaped pipe joint 8 is formed. An annular flange portion 27c that is fastened and fixed together is formed.

In the above embodiment, two rows of annular O-ring grooves 27b are formed on the outer peripheral surface of the insertion port 27'of the water stop valve 5, but in other embodiments, it is not shown. , Only one annular O-ring groove 27b may be formed on the outer peripheral surface of the insertion port 27', or one or more annular O-ring grooves 27b may be formed on the inner peripheral surface of the receiving port 23'of the water stop valve 5. The rows may be formed.

The water supply hose 11 connects each temporary piping unit 1 to a water meter M (or meter unit) of each dwelling unit in the building B, and is provided with a flexible flexible pipe and one end of the flexible pipe. It is provided with a joint portion that is detachably connected to the joint 17 of the temporary piping unit 1 and a joint portion that is provided at the other end of the flexible pipe and is detachably connected to the water meter M (or meter unit). There is.

As shown in FIGS. 17 (a) to 17 (e), the inlet side end of each member such as the straight pipe 2, the elbow 3, the cheese 4, the flexible joint 6, and the reducer 7 forming the temporary roof pipe L1. And one of the outlet side ends is provided with a socket 14 having the same structure as the socket 14 of the temporary piping unit 1, and one of the inlet side end portion and the outlet side end portion of each member is provided with the other. , An insertion port 15 having the same structure as the insertion port 15 of the temporary piping unit 1 is provided. In the cheese 4 shown in FIG. 17 (c), a branch port 16'provided with a joint 17'is provided on the T-shaped protruding portion 4a of the cheese 4 like the cheese 13 of the temporary piping unit 1, but the branch port is provided. Instead of 16', the T-shaped projecting portion 4a of the cheese 4 may be provided with a receiving port 14 or an insertion port 15 having the same structure as the receiving port 14 or the insertion port 15 of the temporary piping unit 1 (not shown).

Further, as shown in FIGS. 17 (a), 17 (b), (e), and (f), each member such as a straight pipe 2, an elbow 3, a reducer 7, and an end cap 10 forming a temporary vertical pipe line L2. Also, the receiving port 14 and the insertion port 15 having the same structure as the receiving port 14 and the insertion port 15 of the temporary piping unit 1 are provided. In the end cap 10 shown in FIG. 17 (f), the receiving port 14 is provided at the open side end of the end cap 10, but the insertion port 15 may be provided at the open side end of the end cap 10 (not shown). ).

Therefore, the respective members 2, 3, 4, 6, 7, and 10, which are single members forming the temporary rooftop piping line L1 and the temporary vertical piping line L2, are also attached and detached by the housing type pipe joint 8 shown in FIG. In addition to being freely connected, it will also be detachably connected to the temporary piping unit 1 and the water stopcock 5.

Thus, in the temporary rooftop piping line L1 described above, a straight pipe 2, an elbow 3, a cheese 4, a water stop valve 5, a flexible joint 6, a reducer 7, and the like are sequentially connected by a housing-type pipe joint 8. It is formed. This temporary roof pipe L1 is connected to an existing water pipe W connected to a pump or a tank (both not shown) via a VS joint 9, and tap water flows in from the existing water pipe W. It is designed to do.

Further, in the temporary vertical piping path L2 described above, the temporary piping unit 1, the straight pipe 2, the elbow 3, the water stop valve 5, the reducer 7, the end cap 10 and the like are sequentially connected by a housing type pipe joint 8. It is formed by connecting the joint 17 of each temporary piping unit 1 and the water meter M (or meter unit) of each dwelling unit of the building B with a water supply hose 11. In this temporary vertical pipe line L2, the water stopcock 5 and the reducer 7 located on the most upstream side are connected to the elbow 3 of the temporary rooftop pipe line L1 via a housing-shaped pipe joint 8. Tap water flows in from the rooftop piping line L1.

Each member such as the temporary piping unit 1, the straight pipe 2, the elbow 3, the water stop valve 5, the reducer 7, and the end cap 10 forming the temporary vertical piping path L2 is connected to the insertion port 15, 27'of each member. Lubricants are applied to the provided O-rings 18 and 31, and the slip-applied insertion ports 15 and 27'are airtightly inserted into the receiving ports 14 and 23'of other members via the O-rings 18 and 31. , 23'and the annular flanges 14c, 15d, 23b, 27c formed on the outer peripheral surfaces of the insertion openings 15, 27'are covered with the annular housing 19 of the housing type pipe joint 8, and the bolt 22a of the fastener 22 is semicircular. It is airtight by inserting it between the bifurcated tightening pieces 19b of the shaped housing 19'and tightening the nut 22b screwed to the bolt 22a to tighten and fix the tightening pieces 19b and 19b of the pair of semicircular housings 19'. It is connected like a.

Although not shown, the temporary rooftop piping line L1 and the temporary vertical piping line L2 are both fixedly supported by a fixing metal fitting, a supporting metal fitting, or the like in a part of the building B or the like.

Then, in the temporary rooftop pipe line L1 and the temporary vertical pipe line L2 described above, the members 2 to 7 and 10 can be removed by simply removing the housing type pipe joint 8 after the renewal work or repair work of the existing water supply pipe line. It can be easily and easily separated, and the temporary rooftop piping line L1 and the temporary vertical piping line L2 can be easily removed after use, and the members 2 to 7 and 10 are almost always damaged during the removal. Not much.

The temporary piping unit 1 configured as described above and the temporary piping path L using the temporary piping unit 1 can exhibit the following excellent effects.

(1) Receptacles 14, 23'and insertion ports 15, 27'are provided in the temporary piping unit 1 and the water stop valve 5, respectively, and the insertion ports 15, 27'are airtightly inserted into the sockets 14, 23'. Temporary piping units 1 can be connected to each other, and the temporary piping unit 1 and the water stopcock 5 can be connected by simply attaching the housing-type pipe joints 8 to the receiving ports 14, 23'and the insertion ports 115, 27'. The vertical piping line L2 of the piping line L can be formed easily and quickly, and can be laid in the building B with high efficiency, so that the construction period can be shortened and the cost can be reduced.
(2) Since the length of the temporary piping unit 1 is set to match the floor height of the building B, one temporary piping unit 1 can be reliably arranged on each floor of the building B. It becomes easy to connect the branch port 16 of the temporary piping unit 1 to the water meter M (or meter unit) of each dwelling unit.
(3) Since the O-ring 18 seals between the receiving port 14 and the insertion port 15 of the temporary piping unit 1, an annular packing bites into the pipe joint as in the conventional temporary piping path, and the packing It is not said that the sealing property is impaired, and the sealing property is excellent.
(4) The receiving cylinder portion 14a of the receiving port 14 of the temporary piping unit 1 is formed to have a large diameter, the inner peripheral edge portion of the receiving cylinder portion 14a is formed on the tapered surface 14b, and the outer peripheral edge portion of the inserting cylinder portion 15a is formed. Since the chamfering 15c is provided, the insertion port 15 can be easily and easily attached to the receiving port 14, and the connection work time can be shortened.
(5) The temporary piping unit 1 can be easily separated by simply removing the housing-shaped pipe joint 8 and pulling out the insertion port 15 of the temporary piping unit 1 from the receiving port 14 of the other temporary piping unit 1, and after use. The temporary piping line L can be easily removed, and each member such as the temporary piping unit 1 and the pipe joint 8 is hardly damaged at the time of removal. As a result, the temporary piping unit 1 and the pipe joint 8 etc. The reuse rate of each member of is greatly improved. Moreover, since the temporary piping unit 1 is made of polyethylene resin except for the 17 joints, it is highly durable, and the temporary piping unit 1 is less likely to be damaged even by rough handling during temporary piping work. The number of uses can be increased, it is economical, and the material can be recycled almost 100%, which can contribute to resource saving.
(6) Since the separation groove 15e is formed on the outer end surface of the flange portion 15d of the insertion tube portion 15a of the insertion port 15, the insertion port 15 of the other temporary piping unit 1 is strong at the receiving port 14 of the temporary piping unit 1. By inserting a tool such as a flat-blade screwdriver into the separation groove 15e, the receiving port 14 and the insertion port 15 can be easily separated from each other.
(7) The surface of the bifurcated tightening piece 19b formed in the semicircular housing 19'of the housing-shaped pipe joint 8 to be locked to the nut 22b is formed on the inclined surface 19c that is inclined upward as it goes outward. Therefore, even if the nut 22b loosens with respect to the bolt 22a and the bolt 22a tries to rotate in the direction of coming out from between the bifurcated tightening pieces 19b, the nut 22b is locked to the inclined surface 19c of the tightening piece 19b. It is possible to prevent the bolt 22a from rotating, and as a result, prevent the annular housing 19 from being opened and detached from the temporary piping unit 1.
(8) The water stop valve 5 connected to the temporary piping unit 1 is detachably inserted into the insertion port 15 of the temporary piping unit 1 in an airtight state, and the tubular receiving port 23'and another temporary piping unit 1 Since the receiving port 14 is provided with a tubular insertion port 27'that can be detachably inserted and detached in an airtight state, it can be easily and quickly connected to the temporary piping unit 1.
(9) A joint 17 provided at the tip of a branch port 16 of the temporary piping unit 1 and a flexible water supply hose 11 detachably connected to a water meter M or a meter unit of each dwelling unit in the building B are provided. Therefore, the temporary piping unit 1 and the water meter M or the like can be connected easily and quickly.

FIG. 18 is a piping layout diagram showing another example in which a temporary piping line L using the temporary piping unit 1 according to the embodiment of the present invention is provided in an apartment house or the like, and the temporary piping line L is the apartment house. When performing renewal work or repair work of the existing water supply pipe line (water supply pipe line) laid in the building B of the building B, it is laid in the building B and the water supply pipe line is renewed or repaired without interruption of water for a long time. A temporary roof pipe line L1 connected to an existing water pipe W connected to a pump or a tank (both not shown) and arranged on the roof of building B, which enables construction work. Temporary vertical piping lines L2, which are arranged on the pipe shaft of building B, outside the veranda, etc., and are connected to the temporary roof piping line L1 to reach the lowest floor from the roof of building B, and each floor of building B. Each of them is arranged sideways and includes a plurality of temporary horizontal pipe lines L3 connected to the temporary vertical pipe line L2.

The temporary roof pipe L1 is provided with a straight pipe 2, an elbow 3, a cheese 4, a water stop valve 5, a housing-shaped pipe joint 8, and the like, and the members 2, 3, 4, and 5 are shown in FIG. As shown, it is formed by sequentially connecting at 8 with a housing type pipe joint. This temporary roof pipe L1 is connected to an existing water pipe W connected to a pump or a tank (both not shown) via a flange short pipe 32, and tap water flows from the existing water pipe W. It is supposed to flow in.

Further, the temporary vertical piping path L2 includes a temporary piping unit 1, a straight pipe 2, a water stop valve 5, a housing-shaped pipe joint 8, an end cap 10, and the like, and the respective members 1, 2, 5, and so on. 7 and 10 are formed by connecting them in series with a housing type pipe joint 8 as shown in FIG. In this temporary vertical pipe line L2, a straight pipe 2 located at the uppermost level is connected to an elbow 3 of the temporary roof pipe line L1 via a housing type pipe joint 8, and water is supplied from the temporary roof pipe line L1. Water is flowing in.

Further, each of the temporary horizontal pipe passages L3 includes a straight pipe 2, cheese 3, a water stopcock 5, a flexible joint 6, a reducer 7, an end cap 10, and the like, and the respective members 2, 3, 5, and so on. 6 and 7 are formed by sequentially connecting them with a housing type pipe joint 8 as shown in FIG. In this temporary horizontal pipe line L3, a water stop valve 5 or a reducer 7 is connected to the cheese 13 of the temporary vertical pipe line L2 via a housing-type pipe joint 8, and each of the horizontal pipe lines L3. The cheese 3 is connected to the water meter M (or meter unit) via the water supply hose 11, and tap water flows in from the temporary vertical pipe line L2.

The members of the temporary rooftop piping line L1, the temporary vertical piping line L2, and the temporary horizontal piping line L3 shown in FIG. 18 are the members of the temporary rooftop piping line L1 and the temporary vertical piping line L2 shown in FIG. Since it has a similar structure, detailed description thereof will be omitted here.

The temporary piping line L shown in FIG. 18 can also have the same effect as the temporary piping line L shown in FIG.

Although not shown, at least the item name, code, and the like are used for each member forming the temporary rooftop pipe line L1, the temporary vertical pipe line L2, and the temporary horizontal pipe line L3 shown in FIGS. 1 and 18. No. A label (not shown) displaying the size, creation date, barcode, etc. or at least the item name, code, No. In addition to displaying the size, date of creation, barcode, etc., a label (not shown) with an IC chip capable of data communication with an external reader is provided, making it possible to manage warehousing and delivery by digitization. ing. This label is attached to one or several places of the above-mentioned members or by a string-shaped member or the like. In addition, a two-dimensional bar code (QR code (registered trademark)) having a large amount of information is used as the bar code.

In this way, if a label is provided on each member, the temporary piping unit 1 and the pipe joint 8 and the like can be thoroughly managed by reading the label information, and there is no excess or deficiency or erroneous delivery, and removal. Even after that, by reading the label and converting it into data, the number of times of use, the period of use, the usage status, etc. can be grasped, and quality control will be improved.

The present invention has been used for renewal work of water supply pipes laid in building B, but is not limited to this, and can also be used for renewal work and repair work of gas pipes and drainage pipes laid in building B. It is a thing.

1 is a temporary piping unit, 8 is a housing type pipe joint, 12 is a pipe body, 13 cheese, 13a is a T-shaped protrusion, 14 is a socket, 14a is a receiving cylinder, 14b is a tapered surface, and 14c is a flange. 15 is an insertion port, 15a is an insertion tube, 15c is a chamfer, 15d is a flange, 16 is a branch, 17 is a joint, 18 is an O-ring, 19 is an annular housing, 19'is a semi-circular housing, and 19a is connected. One piece, 19b is a tightening piece, 19c is an inclined surface, 20 is a connecting pin, 22 is a tightening tool, 22a is a bolt, 22b is a nut, 23'is a socket, 27'is an insertion port, B is a building, and F is a butt fusion. , L is a temporary pipe line, L2 is a vertical pipe line, and M is a water meter.

Claims (10)

A vertical pipe line (L2) of a temporary pipe line (L) provided when renewing or repairing a water supply pipe line laid in a multi-story building (B) is formed and connected in series. The temporary piping unit (1) is a temporary piping unit (1), which is butt-fused (F) with a linear pipe body (12) made of synthetic resin and one end of the pipe body (12). It was provided at either the other end of the pipe body (12) or the opposite end connected to the pipe body (12) of the cheese (13) with the synthetic resin cheese (13) connected by. Another temporary pipe provided at either the other end of the tubular socket (14) and the other end of the pipe body (12) or the opposite end connected to the pipe body (12) of the cheese (13). A tubular insertion port (15) that is detachably inserted into the receiving port (14) of the unit (1) in an airtight state, and a tubular branch provided at the T-shaped protrusion (13a) of the cheese (13). It is provided with a port (16) and a joint (17) provided at the tip of the branch port (16), and is split in half on the outer peripheral surface of the receiving port (14) and the outer peripheral surface of the insertion port (15). An annular flange portion (14c) and (15d), which are covered by the housing-shaped pipe joint (8) of the above and are fastened and fixed in close contact with each other in a butt state, are formed, respectively, and the flange portion (14c) of the socket (14) is formed. ) Or the outer end surface of the flange portion (15d) of the insertion port (15), at least one of the separation grooves (14) into which a tool for separating the receiving port (14) and the insertion port (15) is inserted. A temporary piping unit characterized in that 15e) is formed . The socket (14) abuts a tubular member made of synthetic resin against either the other end of the tube body (12) or the opposite end connected to the tube body (12) of cheese (13). It is formed by fusing (F), and the insertion port (15) has a tubular member made of synthetic resin attached to the other end of the tube body (12) or the tube body (12) of cheese (13). It is formed by butt fusion (F) to either one of the connected opposite ends, and the branch port (16) is a T-shaped member made of synthetic resin and made of cheese (13). The temporary piping unit according to claim 1, wherein the temporary piping unit is formed by butt fusion (F) with a protruding portion (13a) of the above. The socket (14) is integrally formed with the tube body (12) or cheese (13) in either the tube body (12) or the cheese (13), and the insertion port (15) is a tube. The temporary piping unit according to claim 1, wherein the pipe main body (12) or cheese (13) is integrally formed on either the main body (12) or the cheese (13). The temporary piping unit according to claim 1, wherein the length of the temporary piping unit (1) is set to a length that matches the floor height of the building (B). A receiving tube portion (14a) having a diameter larger than that of the base end portion of the receiving port (14) is formed at the tip end portion of the receiving port (14), and the receiving tube portion (14a) is formed at the tip end portion of the insertion port (15). ) Is formed with an insertable cylinder portion (15a) that can be detachably inserted and detached in an airtight state, and is formed on either the inner peripheral surface of the receiving cylinder portion (14a) or the outer peripheral surface of the insert cylinder portion (15a). Claim 1, a plurality of annular O-ring grooves into which the O-ring (18) is fitted are formed, and the O-ring (18) for sealing is fitted into the O-ring groove. 2 or the temporary piping unit according to claim 3. The inner peripheral edge of the receiving tube (14a) of the receiving port (14) is formed on the tapered surface (14b), and the outer peripheral edge of the inserting tube (15a) of the insertion port (15) is chamfered (15c). The temporary piping unit according to claim 5, wherein the temporary piping unit is provided. It is a temporary pipe line (L) provided at least when performing renewal work or repair work of the water supply pipe line laid in the multi-story building (B) and having at least a vertical pipe line (L2). The vertical piping line (L2) of the temporary piping line (L) includes a plurality of temporary piping units (1) according to at least any one of claims 1 to 6, and a receiving port (14) of the temporary piping unit (1). ) And another temporary piping unit (1) insertion port (15) or temporary piping unit (1) insertion port (15) and another temporary piping unit (1) receiving port (14). (1) A temporary piping line including a halved housing-type pipe joint (8) for connecting each other in series. The housing-shaped pipe joint (8) is the end of the receiving port (14) of the temporary piping unit (1) and the end of the insertion port (15) of another temporary piping unit (1) or the temporary piping unit (1). A pair of semi-circular housings (19') and (19') that are covered by the end of the insertion port (15) and the end of the receiving port (14) of the other temporary piping unit (1). A connecting pin (20) that rotatably connects the annular housing (19) and the connecting pieces (19a) and (19a) provided at one ends of the pair of semicircular housings (19') and (19'). And a bifurcated piece (19b) rotatably provided on the other end of one semi-circular housing (19') and provided on the other end of the other semi-circular housing (19'). A bolt (22a) inserted between the shaped tightening pieces (19b) and a nut (22b) screwed to the bolt (22a) and tightly locked to the bifurcated tightening piece (19b) in a surface contact state. A tightening tool (22) composed of a tightening tool (22), and a surface of the bifurcated tightening piece (19b) to be locked to a nut (22b) is tilted upward in an outward direction (19c). The temporary piping line according to claim 7, wherein the temporary piping line is formed in. The vertical piping line (L2) of the temporary piping line (L) further includes a water stop valve (5) that is detachably connected to the temporary piping unit (1), and the water stop valve (5) is The tubular receiving port (23') that is detachably inserted into the insertion port (15) of the temporary piping unit (1) and the receiving port (14) of the other temporary piping unit (1) in an airtight state. It is provided with a tubular insertion port (27') that can be detachably inserted, and is provided with a receiving port (23') for the water stopcock (5) and an insertion port (15) or a water stopcock (15') for the temporary piping unit (1). The temporary piping path according to claim 7, wherein the insertion port (27') of 5) and the receiving port (14) of another temporary piping unit (1) are connected by a housing-type pipe joint (8). .. One end of the vertical piping path (L2) of the temporary piping path (L) is detachably connected to a joint (17) provided at the tip of a branch port (16) of the temporary piping unit (1), and the other end. The seventh aspect of claim 7 , wherein the part further includes a flexible water supply hose (11) that is detachably connected to a water meter (M) or a meter unit of each dwelling unit in the building (B). Temporary piping line.

Images