JP7137202B2 - PIPING MEMBERS, PIPE JOINTS FOR CONNECTING PIPING MEMBERS, TEMPORARY PIPING LINES USING THEM, AND CONSTRUCTION METHOD OF THE Temporary PIPING LINES - Google Patents

Description

The present invention is a pipe used when performing renewal work, repair work, etc. of water supply pipe lines (water supply pipe lines) laid in multi-story buildings such as condominiums, schools, hospitals, buildings, etc. The present invention relates to a member, a pipe joint for connecting pipe members, a temporary pipe line using them, and a construction method of the temporary pipe line.

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. or 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 vertical pipeline is connected to a meter unit equipped with a water meter installed in the meter box or pipe space of each dwelling unit in the building by a water supply pipe composed of a water supply hose or the like.

By the way, the vertical pipe line of the temporary pipe line is provided from the roof to the lowest floor of the building, and when installing it on the outer side of the handrail wall or the handrail provided in the outer corridor or the outer staircase of the building In addition, pipe bodies such as straight pipes, cheeses, elbows, etc., and temporary pipe units are sequentially connected from the roof side of the building downstairs by annular packings and housing-type pipe joints.

However, when constructing a vertical pipe line for a temporary pipe line outside a building, the connection between pipe bodies, the connection between the pipe body and the temporary pipe unit, or the connection between the temporary pipe units is not possible using annular packing and housing type pipe joints. pipes, temporary piping units, and housing-type pipe joints may be dropped, resulting in personal injury or damage to buildings, dropped pipe bodies, temporary piping units, and housing-type pipe joints.・There was a problem that it was damaged.
In particular, temporary piping units are formed by butting and fusing a plurality of pipe bodies and cylindrical joints, so they are considerably heavy, and the impact when dropped is great, further exacerbating the above-mentioned problem. will be

JP-A-10-306472 JP-A-11-107335 JP 2012-122209 A

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to install a pipe member forming a vertical pipe in a housing when constructing a vertical pipe for a temporary pipe outside a building. It prevents pipe members and housing-type pipe joints from falling when connecting with pipe-shaped joints. To provide a pipe member, a pipe joint for connecting the pipe member, a temporary pipe line using them, and a construction method of the temporary pipe line.

In order to achieve the above object, the piping member according to claim 1 of the present invention is a temporary piping line installed when performing renewal work or repair work of a water supply pipe line laid in a building of several stories. and connected by a split housing-shaped pipe joint, the pipe member comprising a pipe body having at least two open ends and a pipe body provided at each open end of the pipe body , a cylindrical receptacle, a cylindrical receptacle, or a cylindrical connecting part having an annular collar formed on the outer peripheral surface thereof and covered by a housing-shaped pipe joint; the pipe main body, the cylindrical receptacle, and the cylindrical receptacle; A drop prevention device provided on either the mouth or the cylindrical connecting part and detachably locked to the hook provided on the safety belt worn by the worker or the rope worn by the worker. It is characterized in that it comprises locking means.

The piping member according to claim 2 of the present invention is the piping member according to claim 1, wherein the piping member is a straight pipe, a tee, an elbow, an expansion pipe, each having at least locking means for preventing falling, It is characterized by a tubular flexible joint, a reducer, a tubular end cap, or a tubular conversion adapter.

The piping member according to claim 3 of the present invention is the piping member according to claim 1, wherein the piping member is a unit main body formed by connecting a plurality of synthetic resin pipe bodies by butt fusion, A cylindrical receptacle, a cylindrical insertion opening, or a cylindrical connecting portion provided at each open end of the unit body and having an annular flange covered with a housing-shaped pipe joint on the outer peripheral surface thereof; and the unit body. , cylindrical receptacle, cylindrical insertion port, or cylindrical connecting portion, and can be attached to or detached from the hook provided on the safety belt worn by the worker or the rope worn by the worker. The temporary piping unit is characterized in that it is provided with locking means for preventing falling which is freely locked.

Claim 4 of the present invention provides the piping member according to any one of Claims 1 to 3, wherein the locking means is at least a hook provided on a safety belt worn by a worker or a working belt. It is characterized by having a ring or a ring-shaped part to which a rope worn by a person is detachably locked.

A pipe joint according to claim 5 of the present invention is a pipe joint for connecting the pipe members according to any one of claims 1 to 4, wherein the pipe joint is a pipe joint that covers ends of two pipe members. a split annular housing consisting of a pair of semicircular housings, a connecting pin for rotatably connecting the connecting pieces provided at one ends of the pair of semicircular housings, and one of the semicircular housings. A bolt that is rotatably provided on a tightening piece provided at one end and is inserted between the forked tightening pieces provided at the other end of the other semicircular housing, and a forked bolt that is screwed into the bolt. A tightening tool consisting of a nut that is tightly locked to the tightening piece in a state of surface contact, and a hook provided on the connecting pin or one of the semicircular housings and provided on the safety belt worn by the worker and the worker. It is characterized in that it is configured as a housing-shaped pipe joint provided with locking means for fall prevention that is detachably locked to the rope worn by the body.

According to claim 6 of the present invention, there is provided the pipe joint according to claim 5, wherein the locking means is at least a hook provided on a safety belt worn by a worker or a hook worn by the worker. It is characterized in that it has a ring or a ring-shaped part to which the ligament is detachably locked.

A temporary pipeline according to claim 7 of the present invention is a temporary pipeline installed when performing renewal work or repair work of a water supply pipeline laid in a building of several stories, wherein the temporary pipeline The path is characterized by comprising at least the piping member according to any one of claims 1 to 4 and the pipe joint according to claim 5 or 6.

A method for constructing a temporary pipeline according to claim 8 of the present invention is a method for constructing a temporary pipeline installed when performing renewal work or repair work for a water supply pipeline laid in a building of several stories. When the piping member according to any one of claims 1 to 4 is vertically connected by the pipe joint according to claim 5 or 6, the locking means provided on the piping member and the pipe joint After a hook provided on a safety belt worn by a worker or a rope worn by a worker is locked to the provided locking means, the piping members are connected to each other with a pipe joint in this state. It is characterized by doing so.

The present invention provides a pipe member forming a temporary pipe line and a housing-type pipe joint for connecting the pipe members, a hook provided on a safety belt worn by a worker, and a rope worn by the worker. Since locking means for preventing dropping are provided so that they can be detachably locked to the pipe members, when connecting the pipe members vertically, the locking means provided for the pipe members and the housing-shaped pipe joint, respectively, By locking the hook provided on the safety belt worn by the worker or the rope worn by the worker, it is possible to prevent the piping member and the housing type pipe joint from falling. .
As a result, the present invention enables safe work when constructing a temporary pipe line (vertical pipe line) outside a building, and prevents damage to the building, pipe members, or housing type due to dropping of pipe members, housing type pipe joints, or the like. It is possible to prevent damage and breakage of pipe joints, etc.

Also, in the present invention, the locking means comprises a hook provided on the safety belt worn by the worker or a ring or ring-shaped portion to which the rope worn by the worker is detachably locked. Therefore, the ring or ring-shaped portion of the locking means and the hook or rope of the safety belt can be securely and firmly locked, and the dropping of pipe members and housing-type pipe joints can be reliably prevented. be able to.

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 building using a piping member or the like according to an 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. A straight pipe forming a piping member is shown, (A) is a front view of a straight pipe provided with a socket at one end and an insertion port at the other end, (B) is a plan view of the same straight pipe, (C ) is a longitudinal front view of the same straight pipe, and (D) is an enlarged cross-sectional view taken along the line aa of FIG. 3(B). FIG. 10 is a front view of a cheese forming a piping member, having sockets and insertion openings at both ends and a socket at a T-shaped protrusion. Fig. 2 is a front view of an elbow forming a pipe member, with a receptacle at one end and a spigot at the other end; Fig. 2 is a front view of an expansion pipe forming a piping member, the expansion pipe being provided with a receptacle at one end and an insertion port at the other end; Fig. 2 is a front view of a flexible joint forming a piping member, with a receptacle at one end and a spigot at the other end; Fig. 10 is a front view of a reducer forming a piping member, with a receptacle at one end and a receptacle at the other end; FIG. 4 is a front view of an end cap forming a piping member, the end cap being provided with a receptacle at its open end; Fig. 10 is a front view of the conversion adapter forming the piping member and having a receptacle at one end; FIG. 4 is a front view of a temporary piping unit forming a piping member; FIG. 12 is an enlarged longitudinal sectional front view with partial omission of the temporary piping unit shown in FIG. 11; The housing type pipe joint is shown, (A) is a front view of the housing type pipe joint, (B) is a left side view of the housing type pipe joint, (C) is a right side view of the housing type pipe joint, ( D) is a rear view of the housing type pipe joint, (E) is a plan view of the housing type pipe joint, and (F) is a bottom view of the housing type pipe joint. FIG. 13(A) is an enlarged sectional view taken along line bb of FIG. 13(A); FIG. 13(E) is an enlarged cross-sectional view taken along the line cc. Fig. 10 is a front view of a stop cock provided with locking means for preventing falling off; FIG. 4 is an enlarged view of a main part showing a state in which piping members are connected to each other by a housing-shaped pipe joint; FIG. 4 is an enlarged cross-sectional view of a main part showing a state in which piping members are connected to each other by a housing-shaped pipe joint; FIG. 4 is a plan view showing another example of locking means provided on the piping member; FIG. 10 is a front view showing still another example of locking means provided on the piping member; FIG. 10 is a front view showing still another example of locking means provided on the piping member; Other examples of locking means provided in a housing-type pipe joint are shown, (A) is a front view of a housing-type pipe joint in which the locking means is a ring-shaped portion, and (B) is a ring-shaped locking means. 1 is a front view of a closed housing type pipe joint. FIG. Each open end of the piping member is provided with a cylindrical connecting portion having an annular flange covered with a housing-shaped pipe joint, and the piping members are held together by an annular packing and a split housing-shaped pipe joint. FIG. 10 is a cross-sectional view of the main part in a state in which it is inserted, tightened and fixed;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
FIG. 1 shows a temporary pipe line L using a pipe member (for example, a temporary pipe unit 1, a straight pipe 2, a cheese 3, an elbow 5, an end cap 7, etc.) and a housing type pipe joint 4 according to an embodiment of the present invention. It is a piping layout diagram showing an example installed in a housing complex such as an apartment, and the temporary pipeline L is an existing water supply pipeline (water supply pipeline) laid in a building B of several stories such as a housing complex. When performing renewal work or repair work on the Both are not shown) connected to the existing water pipe (not shown) and arranged on the roof of the building B, and the temporary roof pipe L1 connected to the building A plurality of temporary vertical pipelines L2 arranged in parallel from the roof of B to the lowest floor (F1).

As shown in FIG. 1, 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 stopcock such as a ball valve (not shown), It is provided with elbows (not shown), flexible joints (not shown), etc., and is formed by sequentially connecting the respective 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, as shown in FIG. 1, the plurality of temporary vertical pipes L2 are composed of a temporary pipe unit 1, a straight pipe 2, a cheese 3, an elbow 5, a stop cock 6 (ball valve), a housing type pipe joint 4, Each of the members 1, 2, 3, 5, 6, and 7 is connected in series with a housing-shaped pipe joint 4 to form an end cap 7 and the like. Each of these vertical pipelines L2 is arranged in parallel outside the outer corridor provided in the building B, and is fixed to the handrail wall B1 of the outer corridor with fixing metal fittings 8 (see FIG. 2). ). The fixing bracket 8 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.

2, each vertical pipe line L2 of the temporary pipe line L is attached to a meter unit U equipped with a water meter M housed in the meter box S (or pipe space) of each dwelling unit of the building B. It is connected by a water supply suspension pipe 9, and the tap water flowing through the vertical pipeline L2 is supplied to each dwelling unit by the water supply suspension pipe 9.

Incidentally, as shown in FIG. 2, the water supply suspension pipe 9 is arranged in a horizontal position below the ceiling surface of the outer corridor of the building B, and the base end is connected to the temporary pipe unit 1 of the vertical pipe line L2. and a pipe joint 11 connected to the tip of the horizontal pipe 10 are arranged in a vertical posture along the wall surface of the outer corridor, with the upper end connected to the pipe joint 11 and the lower end A vertical pipe 12 connected to a meter unit U equipped with a water meter M, and a rope 13 (flexible rope, cord, wire , a chain, etc.), and a horizontal pipe 10 and a vertical pipe 12 are held by a rope 13 stretched between the temporary pipe unit 1 and the pipe joint 11 .

Piping members forming the rooftop pipe line L1 and the vertical pipe line L2 include at least a temporary pipe unit 1, a straight pipe 2, a cheese 3, an elbow 5, a cylindrical end cap 7, an expansion pipe 14, and a cylindrical flexible pipe. It consists of a joint 15, a reducer 16, a cylindrical conversion adapter 17, or the like.

These piping members 2, 3, 5, 7, 14, 15, 16, and 17, except for the temporary piping unit 1, are synthetic resin pipe bodies 2a, 3a, 5a, 7a, 14a, 15a, 16a, and 17a. Annular flanges 20c, 21d are provided at the respective open ends of the pipe bodies 2a, 3a, 5a, 7a, 14a, 15a, 16a, 17a and are covered with the housing-shaped pipe joint 4 on the outer peripheral surface. The synthetic resin cylindrical receptacle 20 or cylindrical receptacle 21, the pipe main body 2a, 3a, 5a, 7a, 14a, 15a, 16a, 17a, the receptacle 20 or the receptacle 21 is provided. A hook 19 provided on a safety belt (not shown) worn by a worker or a rope (not shown) worn by a worker is detachably locked to a locking means 22 for preventing falling. and (see FIGS. 3 to 10). These piping members 2, 3, 5, 7, 14, 15, 16, 17 can be freely set in pipe diameter, length, wall thickness, size, etc., and can be appropriately adjusted according to the site conditions. They are selectively combined to form a temporary pipeline L.

As the safety belt, conventionally known waist belt type safety belts, full harness type safety belts, etc. are used. there is Although not shown, flexible ropes, cords, wires, chains, and the like are used for the ropes connected to the locking means 22 for preventing falling. The side is connected to a safety harness or tied directly to the operator's body.

3A to 3D show a straight pipe 2 forming a piping member, and the straight pipe 2 is butted against a straight pipe main body 2a made of synthetic resin and one open end of the pipe main body 2a. A synthetic resin cylindrical receptacle 20 connected by fusion W, a synthetic resin cylindrical insert 21 connected by butt fusion W to the other open end of the pipe body 2a, and the receptacle 20 and locking means 22 for preventing falling provided on the . Insertion openings 21 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 are detachably inserted into the socket 20 of the straight pipe 2 in an airtight state. Receptacles 20 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably inserted into the insertion openings 21 of the straight pipe 2 in an airtight state. ing.

A receiving tube portion 20a having a larger diameter than the base end portion of the receiving port 20 is integrally formed at the distal end portion of the receiving port 20, and other piping members 1 and 2 are provided at the distal end portion of the insertion port 21. , 3, 5, 7, 14, 15, 16, and 17 are formed integrally with an inserting cylinder portion 21a which is detachably inserted in an airtight state into the sockets 20 provided in the sockets 20 of the inserting cylinders. Two rows of annular O-ring grooves 21b into which O-rings 23 are fitted are formed on the outer peripheral surface of 21a, and the inner peripheral surface of receiving cylindrical portion 20a of receiving port 20 and the outer peripheral surface of inserting cylindrical portion 21a of insertion port 21 are formed. An O-ring 23 seals the gap.

Furthermore, a tapered surface 20b is formed on the inner peripheral edge of the receiving cylindrical portion 20a of the receiving port 20, and the outer peripheral edge of the inserting cylindrical portion 21a of the inserting port 21 is formed with a tapered surface 20b that gradually decreases in diameter as it goes inward. , chamfers 21c are provided, and sockets 20 of piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 and other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 can be easily and easily inserted into the insertion port 21. - 特許庁

Further, the outer peripheral surface of the receiving cylindrical portion 20a of the receiving port 20 and the outer peripheral surface adjacent to the inserting cylindrical portion 21a of the insertion port 21 are covered with a housing-shaped pipe joint 4 that is divided into two parts, and are in close contact with each other. Annular collar portions 20c and 21d are formed to be tightened and fixed to the respective members.

Furthermore, a separating groove 21e into which a tool (such as a flat-blade screwdriver) is inserted to separate the receptacle 20 and the insertion port 21, which are inserted in abutting fashion, is formed on the outer end surface of the flange portion 21d of the insertion port 21 at an angle of 180 degrees. are formed with an interval of .

The locking means 22 for preventing falling is provided with a safety belt (not (omitted)) or the rope (not shown) worn by the worker, and the piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 fall. At least the ring 27 (or ring-shaped part) to which the hook 19 of the safety belt is detachably locked, or the ring 27 (or ring-shaped part) to which the tip of the rope is tied part).

That is, as shown in FIGS. 3(A) to 3(D), the locking means 22 is formed of a strip-shaped metal plate which is detachably fitted on the outer peripheral surface of the small diameter portion of the socket 20 of the straight pipe 2, for example. Two semi-circular band portions 24a, a hinge 25 that rotatably connects the ends of the two band portions 24a to each other so that the two band portions 24a can be opened and closed, and the free ends of the two band portions 24a. A circular pipe support fitting 24 consisting of a pair of clamping pieces 24b provided facing each other and the pair of clamping pieces 24b of the pipe support fitting 24 are clamped together to clamp and fix the pipe support fitting 24 to the outer peripheral surface of the socket 20. A tightening tool 26 consisting of a bolt and a nut and a through hole 24c formed in a pair of tightening pieces 24b are inserted and locked, and a hook 19 provided on a safety belt worn by a worker or worn by the worker is provided. and a metal ring 27 to which the end of the cable is detachably locked.

The locking means 22 is detachably attached to the receptacle 20 by tightening or loosening a fastener 26 . Therefore, when the piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 are damaged or broken, the locking means 22 can be replaced by the piping members 1, 2, 3, 5, and 7. , 14, 15, 16, 17 and attached to new piping members 1, 2, 3, 5, 7, 14, 15, 16, 17.

In the above-described embodiment, the straight pipe 2 is provided with a cylindrical receptacle 20 at one open end of the pipe main body 2a and with a cylindrical insertion port 21 at the other open end of the pipe main body 2a. However, in another embodiment, although not shown, the straight pipe 2 may have a structure in which cylindrical receptacles 20 are provided at both open ends of the pipe main body 2a. A configuration may be adopted in which tubular insertion openings 21 are provided at both open ends of the main body 2a.

FIG. 4 shows a cheese 3 forming a piping member, and the cheese 3 is connected to a synthetic resin T-shaped pipe body 3a and both open ends of the pipe body 3a by butt fusion W. A synthetic resin cylindrical receptacle 20 and a cylindrical receptacle 21, a synthetic resin cylindrical receptacle 20 connected to the T-shaped projecting portion 3a' of the pipe body 3a by butt fusion W, and locking means 22 provided in one socket 20 for preventing falling. Insertion openings 21 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 are detachably inserted into the receiving opening 20 of the cheese 3 in an airtight state. 3, sockets 20 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 are detachably inserted in an airtight state. .

In the above-described embodiment, the cheese 3 is provided with a tubular receiving opening 20 and an insertion opening 21 at both open ends of the pipe body 3a, respectively, and a tubular receiving opening 20 at the projecting portion 3a' of the pipe main body 3a. However, in another embodiment, although not shown, the cheese 3 has cylindrical receptacles 20 at both open ends of the pipe body 3a and at the open ends of the projecting portion 3a'. In addition, a cylindrical receptacle 20 and a cylindrical insertion port 21 are provided at both open ends of the pipe main body 3a, and a tubular It is also possible to provide a cylindrical insertion opening 21 at both opening ends of the pipe main body 3a and at the opening end of the projecting portion 3a'. It is also possible to provide a cylindrical insertion port 21 at both open ends of the main body 3a and a cylindrical receptacle 20 at the open end of the projecting portion 3a' of the pipe main body 3a.

FIG. 5 shows an elbow 5 that forms a piping member, and the elbow 5 is a synthetic resin joint that is connected to an L-shaped pipe body 5a made of synthetic resin and one open end of the pipe body 5a by butt fusion W. A resin cylindrical receptacle 20, a synthetic resin cylindrical receptacle 21 connected to the other open end of the pipe body 5a by butt fusion W, and a fall prevention engagement provided in the receptacle 20. and a stopping means 22 . Into the receptacle 20 of the elbow 5, a receptacle 21 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 is detachably inserted in an airtight state. 5, sockets 20 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 are detachably inserted in an airtight state. .

In the above-described embodiment, the elbow 5 is provided with a cylindrical receptacle 20 at one open end of the pipe main body 5a and with a cylindrical insertion port 21 at the other open end of the pipe main body 5a. However, in another embodiment, although not shown, the elbow 5 may be configured to have cylindrical receptacles 20 at both open ends of the pipe body 5a. It is good also as a structure which provides the cylindrical insertion opening 21 in both opening edge parts, respectively.

FIG. 6 shows an expandable pipe 14 forming a piping member. The expandable pipe 14 has a double-structure pipe body 14a in which two pipes made of synthetic resin with different diameters are slidably fitted, and two pipes. A telescopic adjuster 14b capable of fixing both pipes at an arbitrary joint position to the joint of the pipe body 14a, a synthetic resin cylindrical socket 20 connected to one open end of the pipe body 14a by butt fusion W It has a synthetic resin cylindrical insert 21 connected to the other open end of the pipe body 14a by butt fusion W, and a locking means 22 provided in the socket 20 for preventing falling. Insertion openings 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 are detachably inserted in an airtight state into the receiving opening 20 of the expansion tube 14. Receptacles 20 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably inserted into the insertion openings 21 of the expansion pipe 14 in an airtight state. ing.

In the above-described embodiment, the expandable tube 14 is provided with a tubular socket 20 at one open end of the tube main body 14a and a tubular insertion opening 21 at the other open end of the tube main body 14a. However, in another embodiment, although not shown, the telescopic tube 14 may be configured to have cylindrical receptacles 20 at both open ends of the tube main body 14a. It is also possible to adopt a configuration in which tubular insertion openings 21 are provided at both open ends of the main body 14a.

FIG. 7 shows a tubular flexible joint 15 forming a piping member, and the flexible joint 15 includes a flexible metal pipe body 15a and a composite pipe connected to one open end of the pipe body 15a. A cylindrical receptacle 20 made of resin, a cylindrical receptacle 21 made of synthetic resin connected to the other open end of the pipe body, and locking means 22 provided in the receptacle 20 for preventing falling. I have. Insertion openings 21 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 are detachably inserted into sockets 20 of the flexible joint 15 in an airtight state. Receptacles 20 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably inserted into the insertion openings of the flexible joints in an airtight state. .

In the above-described embodiment, the flexible joint 15 is provided with a cylindrical socket 20 at one open end of the pipe body 15a and with a cylindrical insertion port 21 at the other open end of the pipe body 15a. However, in another embodiment, although not shown, the flexible joint 15 may be configured to have cylindrical receptacles 20 at both open ends of the pipe body 15a. It is also possible to adopt a configuration in which tubular insertion openings 21 are provided at both open ends of the main body 15a.

FIG. 8 shows a reducer 16 that forms a piping member. The reducer 16 includes a straight pipe body 16a made of synthetic resin with different diameters at both ends, and a butt-melted pipe body 16a at one open end of the pipe body 16a. A cylindrical receptacle 20 made of synthetic resin connected by splicing W, a cylindrical receptacle 21 made of synthetic resin connected to the other opening end of the pipe body 16a by butt fusion W, and the receptacle 20 and a locking means 22 provided. Insertion openings 21 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 are detachably inserted into the receiving opening 20 of the reducer 16 in an airtight state. Receptacles 20 provided in other piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 are detachably inserted into the insertion openings 21 of the reducer 16 in an airtight state. ing.

In the above-described embodiment, the reducer 16 is provided with a cylindrical receptacle 20 at one open end of the pipe main body 16a and with a cylindrical insertion port 21 at the other open end of the pipe main body 16a. However, in another embodiment, although not shown, the reducer 16 may be configured to have cylindrical receptacles 20 at both open ends of the tube main body 16a, or It is also possible to adopt a configuration in which cylindrical insertion openings 21 are provided at both open ends of the main body 16a.

FIG. 9 shows an end cap 7 that forms a piping member. The end cap 7 includes a straight pipe body 7a made of synthetic resin with one end closed and abutting fusion W on the open end of the pipe body 7a. A cylindrical receptacle 20 made of synthetic resin and connected by . Into the receptacle 20 of the end cap 7, a receptacle 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 is detachably inserted in an airtight state. It's becoming

In the above-described embodiment, the end cap 7 is configured to have the cylindrical socket 20 at the open end of the pipe body 7a. Alternatively, a cylindrical insertion port 21 may be provided at the open end of the pipe body 7a.

FIG. 10 shows a conversion adapter 17 forming a piping member, and the conversion adapter 17 includes a synthetic resin pipe body 17a and a synthetic resin pipe body 17a connected by butt fusion W to one opening end of the pipe body 17a. and a locking means 22 provided in the socket 20 for preventing falling. The receptacle 20 of the conversion adapter 17 is designed so that the receptacle 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 can be detachably inserted in an airtight state. It's becoming

In the above-described embodiment, the conversion adapter 17 has a configuration in which the tubular receiving port 20 is provided at one open end of the pipe main body 17a. The adapter 17 may have a configuration in which a tubular insertion port 21 is provided at one open end of the pipe main body 17a.

The straight pipe 2, the cheese 3, the elbow 5, the end cap 7, the expansion pipe 14, the flexible joint 15, the reducer 16, and the conversion adapter 17 forming the above-described piping members are all made of polyethylene. It is made of a resin material. In addition, straight pipe 2, cheese 3, elbow 5, end cap 7, expansion pipe 14, flexible joint 15, reducer 16, and pipe main bodies 2a, 3a, 5a, 7a, 14a, 15a of conversion adapter 17 forming pipe members , 16a and 17a, except for the flexible joint 15, are all made of a polyethylene resin material. Furthermore, the straight pipe 2, the cheese 3, the elbow 5, the end cap 7, the expansion pipe 14, the flexible joint 15, the reducer 16 and the socket 20 of the conversion adapter 17, the insertion port 21 and the locking means 22, which form the piping members, All are formed in the same shape and the same structure.

Further, in the straight pipe 2, the cheese 3, the elbow 5, the end cap 7, the expansion pipe 14, the flexible joint 15, the reducer 16, and the conversion adapter 17, which form the piping members described above, all of them are attached to the receptacle 20 to prevent falling. Although the locking means 22 is provided, the pipe bodies 2a, 3a, 5a, 7a, 14a, 15a, 16a, 17a of the pipe members 2, 3, 5, 7, 14, 15, 16, 17 or the insertion openings 21 may be provided with locking means 22 for preventing falling.

11 and 12 show a temporary piping unit 1 forming a piping member. The temporary piping unit 1 includes a unit main body 28 formed by connecting a plurality of synthetic resin pipe bodies by butt welding W, and a unit main body 28. 28, a synthetic resin cylindrical receptacle 20 and a cylindrical insertion port 21 having annular flanges 20c and 21d formed on the outer peripheral surface and covered by the housing-shaped pipe joint 4; The unit main body 28, the cylindrical receptacle 20, or the cylindrical insertion port 21 is provided with a hook 19 provided on the safety belt worn by the operator or on the rope worn by the operator. and locking means 22 for fall prevention that is detachably locked.

Further, the tubular body forming the unit main body 28 may be a straight pipe 28a, a cheese 28b, an elbow (not shown) or an expansion pipe ( (illustration omitted), etc.

In this embodiment, the temporary piping unit 1 includes a unit main body 28 formed by connecting a straight pipe 28a made of polyethylene resin and a cheese 28b made of polyethylene resin by butt welding W, and the cheese 28b of the unit main body 28. A tubular receptacle 20 made of polyethylene resin, which is connected by butt fusion W and is detachably inserted in an airtight state into an insertion port 21 of another temporary piping unit 1, and a straight pipe 28a of a unit main body 28 are butt-fused. A cylindrical insert 21 made of polyethylene resin, which is connected by a joint W and is detachably inserted into a socket 20 of another temporary piping unit 1 in an airtight state, and a T-shaped projecting portion of a cheese 28b of a unit body 28. 28b' and a tubular branching port 29 made of polyethylene resin connected by butt fusion W, a joint 30 provided at the tip of the branching port 29, and a safety guard worn by the operator. A hook 19 provided on the belt and a locking means 22 for preventing falling which is detachably locked to a rope worn by a worker are provided, and the receiving port 20 is provided with another temporary piping unit 1. and the receptacle 20 of another temporary piping unit 1 is detachably attached to the insertion opening 21 in an airtight state, and the ends of the temporary piping units 1 are connected to each other by a housing type pipe joint. By connecting at 4, they are connected in series.

In addition to the other temporary piping unit 1, piping members such as a straight pipe 2, an elbow 3, a cheese 5, a water stopcock 6, an end cap 7, and an expansion pipe are attached to the receiving port 20 and the insertion port 21 of the temporary piping unit 1. 14, a flexible joint 15, a reducer 16, a conversion adapter 17, etc. are detachably connected via a housing-shaped pipe joint 4. As shown in FIG.

In addition, the length (height) of the temporary piping unit 1 is set to match the floor height of the building B. When the temporary piping unit 1 is arranged at the outside position, one temporary piping unit 1 is surely arranged on each floor of the building B, and the positions of the branch ports 29 and the joints 30 of the temporary piping unit 1 are always slightly above the ceiling surface B2 of each floor. It is positioned in a low position.

The socket 20, the insertion opening 21 and the locking means 22 of the temporary piping unit 1 are similar to the sockets 20, the insertion openings 21 and the locking means of the other piping members 2, 3, 5, 7, 14, 15, 16 and 17. 22 in the same shape and structure as the other piping members 2, 3, 5, 7, 14, 15, 16, 17 in the same parts and members as the socket 20, the insertion port 21 and the locking means 22. have the same reference numbers.

Furthermore, as shown in FIG. 12, the joint 30 of the temporary piping unit 1 includes a short pipe 30b inserted into the branch port 29 in an airtight state via a sealing material 30a, and a short pipe 30b fixed to the end face of the branch port 29. It is provided with a stop nut 30c for retaining the joint 30b and a union nut 30d rotatably and axially movably fitted onto the short pipe 30b, and is constructed in the same structure as a conventionally known union joint. .

In the above-described embodiment, the temporary piping unit 1 is composed of the unit main body 28, the receiving port 20, the insertion port 21, the branch port 29, the joint 30, and the locking means 22. The present invention is not limited to the above embodiment, and may be of any form and structure as long as at least a plurality of tubular bodies, receptacles 20, insertion openings 21, and locking means 22 are provided.

Further, in the above embodiment, the temporary piping unit 1 as shown in FIG. 11 is used as part of the temporary vertical piping line L2. The pipe members 2, 3, 5, 7, 14, 15, 16, and 17 may be connected in series by a housing-shaped pipe joint 4 to form a temporary vertical pipe line L2.

13 to 15 show a split housing-shaped pipe joint 4, in which pipe members 1, 2, 3, 5, 7, 14, 15, 16, 17, etc. are attached and detached. It connects to

That is, as shown in FIGS. 13 to 15, the housing type pipe joint 4 has sockets 20 and insertion holes 20 provided in the pipe members 1, 2, 3, 5, 7, 14, 15, 16, and 17 to be connected. An annular housing 31 divided into two, which is composed of a pair of semicircular housings 31' made of a polyethylene resin material and covered with both flanges 20c and 21d, and a connection provided at one end of one of the semicircular housings 31'. A connecting pin 32 for rotatably connecting the piece 31a and a bifurcated connecting piece 31' provided at one end of the other semicircular housing 31', and a connecting pin 32 at the other end of the semicircular housing 31'. A bolt is rotatably provided on a bifurcated clamping piece 31b through a mounting pin 33 and inserted between the bifurcated clamping pieces 31b provided at the other end of the other semicircular housing '31'. 34a and a tightening device 34 consisting of a nut 34b screwed to the bolt 34a and locked to the bifurcated tightening piece 31b in a surface contact state, and a safety belt provided on the connecting pin 32 and worn by the operator. A hook 19 provided at the bottom and a locking means 22 for preventing falling which is detachably locked to a rope worn by a worker are provided.

The locking means 22 for preventing falling comprises locking members 35 having a U-shaped planar shape and attached to both ends of a connecting pin 32 that rotatably connects a pair of semi-circular housings 31'. , the U-shaped locking member 35 is a ring-shaped portion to which the hook 19 provided on the safety belt and the tip portion of the rope are detachably locked. The U-shaped locking member 35 rotates together with the connecting pin 32 around the axis of the connecting pin 32 .

In the housing-shaped pipe joint 4, as shown in FIG. 14, the surface of the bifurcated tightening piece 31b of the semicircular housing 31', which is engaged with the nut 34b, slopes upward toward the outside. The nut 34b is formed on the inclined surface 31c, and even if the nut 34b is loosened with respect to the bolt 34a and the bolt 34a tries to rotate in the direction in which the bolt 34a is pulled out from between the bifurcated tightening pieces 31b, the nut 34b does not touch the inclined surface 31c of the tightening piece 31b. It is locked so that the bolt 34a can be prevented from rotating.

FIG. 16 shows a water stop cock 6 interposed in the rooftop pipeline L1 and the vertical pipeline L2. 7, 14, 15, 16, 17, a cylindrical insert 21' which is detachably inserted in an airtight state into the receptacle 20 of 7, 14, 15, 16, 17; A cylindrical receptacle 20' which is detachably inserted into the receptacle 21 of 16 and 17 in an airtight state, a hook 19 provided on the stop cock main body 6a and provided with a safety belt worn by a worker, and a worker. and locking means 22 for fall prevention that is detachably locked to a rope worn by a person. , 14, 15, 16, 17 in an airtight manner.

The locking means 22 for preventing falling is formed in the same shape and structure as the locking means 22 provided on the piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17. , the same parts and members as the locking means 22 of the piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are given the same reference numerals.
In FIG. 16, 20a' is the flange of the receiving port 20', 21a' is the insertion cylindrical portion of the insertion port 21', 21b' is the flange of the insertion port 21', and 23 is an O-ring.

As shown in FIG. 1, the temporary rooftop pipeline L1 includes a straight pipe 2, a cheese 3, a stopcock (not shown), an elbow (not shown), a flexible joint (not shown), etc. It is formed by successively connecting with a pipe joint 4 of the shape. The temporary rooftop pipeline L1 is connected to an existing water pipe (not shown) whose upstream part is connected to a water supply tank or pump (both not shown) via a VS joint (not shown) or the like. It is designed so that tap water flows in from the existing water pipe.

As shown in FIGS. 1 and 2, the above-mentioned temporary vertical pipe line L2 consists of a temporary pipe unit 1, a straight pipe 2, a cheese 3, an elbow 5, a stopcock 6, an end cap 7, etc. The joints 30 of the temporary piping units 1 are connected in sequence with the joints 4, and the meter units U equipped with the water meters M housed in the meter boxes S of the dwelling units of the building B are connected by the hanging pipes 9 for water supply. It is formed by In this temporary vertical pipeline L2, the most upstream shutoff valve 6 is connected to the cheese 3 of the temporary rooftop pipeline L1 via a housing-shaped pipe joint 4. Tap water flows in from Further, the vertical pipe line L2 is fixedly supported by the handrail wall B1 of the building B or the like by means of fixing metal fittings.

Each member such as the temporary piping unit 1, the straight pipe 2, the cheese 3, the elbow 5, the end cap 7, etc. is provided with an insertion opening 20 for each member 1, 2, 3, 5, 7, as shown in FIGS. After applying a lubricant to the O-ring 23 provided in , the insertion port 21 coated with the lubricant is airtightly inserted into the receptacle 20 of the other members 1, 2, 3, 5, 7 via the O-ring 23, and the receptacle 20 and the annular flanges 20c, 21d formed on the outer peripheral surface of the insertion port 21 are covered with the annular housing 31 of the housing-shaped pipe joint 4, and the bolts 34a of the tightening tool 34 are bifurcated into the semicircular housing 31'. A nut 34b is inserted between the pieces 31b and screwed onto a bolt 34a, and the tightening pieces 31b of the pair of semi-circular housings 31' are tightly connected to each other to be airtightly connected.

By the way, when constructing the temporary vertical pipeline L2, in the building B where water is supplied from the roof, the vertical pipeline L2 is constructed from the roof of the building B toward the lower floors. , 2, 3, 5, 7 with the housing type pipe joint 4, the pipe members 1, 2, 3, 5, 7 and the housing type pipe joint 4 may be dropped.

Therefore, when constructing the vertical pipe line L2, the ring 27 of the locking means 22 provided on the pipe members 1, 2, 3, 5, and 7 and the connector of the locking means 22 provided on the housing-shaped pipe joint 4 are used. After locking the hook 19 provided on the safety belt worn by the worker or the rope worn by the worker on the letter-shaped locking member 35 (ring-shaped portion), each pipe is connected in this state. The members 1, 2, 3, 5 and 7 are connected together. When connecting the stopcock 6 to each of the piping members 1, 2, 3, 5, and 7 with the housing-shaped pipe joint 4, the safety belt is attached to the ring 27 of the locking means 22 provided on the stopcock 6. The hooks 19 and ropes provided in the are locked.

By doing so, it is possible to prevent the pipe members 1, 2, 3, 5, 7, the housing type pipe joint 4, and the water stop valve 6 from dropping. As a result, when constructing the temporary pipe line L outside the building, the work can be done safely, and the pipe members 1, 2, 3, 5, 6, 7, the housing-shaped pipe joint 4, and the water stop valve 6 do not fall. It is possible to prevent damage and breakage of the building, piping members 1, 2, 3, 5, 7, housing type pipe joint 4, and water stop valve 6 due to water.

Further, the piping members 1, 2, 3, 5, 7 and the water stop valve 6 described above can exhibit the following excellent effects.
(1) The piping members 1, 2, 3, 5, 7 and the water stop valve 6 are provided with sockets 20, 20' and insertion openings 21, 21'. ' in an air-tight manner, and housing-type pipe joints 4 are attached to receiving openings 20, 20' and insertion openings 21, 21'. , 2, 3, 5, 7 and the water stop valve 6 can be connected, the vertical pipeline L2 of the temporary pipeline L can be formed easily and quickly, and can be laid in the building B with high efficiency. can be shortened and the cost can be reduced.
(2) The O-ring 23 seals between the pipe members 1, 2, 3, 5, 7 and the sockets 20, 20' of the water shutoff valve 6 and the insertion ports 21, 21'. The sealing property of the packing is excellent, unlike the case of a temporary pipe line, in which the ring-shaped packing gets caught in the pipe joint and the sealing property of the packing is impaired.
(3) The pipe members 1, 2, 3, 5, 7 and the receiving cylinder portions 21, 21' of the receiving ports 20, 20' of the water stop valve 6 are formed with large diameters, and the receiving cylinder portions 21, 21'a Since the inner peripheral edges are formed as tapered surfaces 20, 20'b and the outer peripheral edges of the insertion cylinders 21, 21' are chamfered 21, 21'c, insertion into the sockets 20, 20' is easy. 21 and 21' can be simply and easily inserted, shortening the connection work time.
(4) Remove the housing type pipe joint 4, and insert the pipe members 1, 2, 3, 5, 7 and the insertion openings 21, 21' of the water stop valve 6 into the other pipe members 1, 2, 3, 5, 7 and The pipe members 1, 2, 3, 5, 7 and the water stop valve 6 can be easily separated by simply pulling them out from the sockets 20, 20' of the water stop valve 6, and the temporary pipe line L can be removed after use. and the piping members 1, 2, 3, 5, 7 and the water stop valve 6 are hardly damaged during removal. And the reuse rate of the water stop valve 6 is greatly improved.

In the above-described embodiment, the circular pipe support fitting 24 of the locking means 22 is made openable and closable by the hinge 25. However, in other embodiments, as shown in FIG. 24, a C-shaped band portion 24a formed by bending an elastically deformable strip-shaped metal plate and fitted to the small diameter portion of the socket 20 or the insertion port 21, and both ends of the band portion 24a. The pipe support fitting 24 may be provided with a pair of clamping pieces 24b that are connected and opposed to each other, and the hinge 25 may be omitted.

Further, in the above embodiment, the locking means 22 is provided with a metal ring 27, but in another embodiment, as shown in FIG. The through hole 24c formed in the clamping piece 24b of the support fitting 24 is formed to a size that allows the hook 19 or the cable of the safety belt to be inserted and locked, and the tip end portion of the clamping piece 24b of the pipe support fitting 24 is formed into a ring-shaped portion. It is good as

Furthermore, in the above embodiment, the pair of tightening pieces 24b of the pipe support fitting 24 of the locking means 22 are tightened by the tightening tools 26 consisting of bolts and nuts. However, the tightening member 26 may be omitted and the pair of tightening pieces 24b of the pipe support fitting 24 may be fixed together by welding.

Furthermore, in the above embodiment, the locking means 22 is composed of the pipe support fitting 24, the tightening device 26 and the ring 27, but the locking means 22 is limited to those according to the above embodiment. Instead, it may have any form and structure as long as it has a ring or a ring-shaped portion to which the hook 19 or rope of the safety belt is locked.

For example, as shown in FIG. 21, the locking means 22 is such that a hook 19 or a rope of a safety belt is inserted into a part of the piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 and locked. A ring-shaped portion 36 having a through hole 36a formed therein may be integrally formed. Any position of the piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 may be used as the position where the ring-shaped portion 36 is formed. Also, although not shown, a ring may be inserted through the through hole 36a of the ring-shaped portion 36 shown in FIG.

Furthermore, in the above-described embodiment, in the housing-shaped pipe joint 4, the locking means 22 includes the locking member 35 having a U-shaped planar shape, and the locking member 35 is a ring-shaped portion. The locking means 22 of the shaped pipe joint 4 is not limited to the one according to the above-described embodiment, and may be provided with a ring or a ring-shaped portion for locking the hook 19 or rope of the safety belt. , may be of any form and structure.

For example, as shown in FIG. 22(A), the locking means 22 of the housing-shaped pipe joint 4 has a through hole in one semicircular housing 31' into which the hook 19 of the safety belt or the cord is inserted and locked. The ring-shaped portion 36 formed with 36a may be integrally formed, or as shown in FIG. A hook 19 of a safety belt or a ring 27 into which a cord is inserted and locked may be inserted into and locked to 31d.

Furthermore, in the above embodiments, the opening ends of the pipe bodies 2a, 3a, 5a, 7a, 14a, 16a, and 17a of the piping members 2, 3, 5, 7, 14, 16, and 17 and the piping member 1 (temporary Although the receiving port 20 and the insertion port 21 are butted and fused W to the opening end of the unit body 28 of the piping unit 1), in other embodiments, the piping members 2, 3, 5, 7, 14, 16 , 17 and the opening end of the unit main body 28 of the piping member 1 (temporary piping unit 1). You may make it form to .

Furthermore, in the above embodiments, the opening ends of the pipe bodies 2a, 3a, 5a, 7a, 14a, 16a, and 17a of the piping members 2, 3, 5, 7, 14, 16, and 17, the piping member 1 (temporary Receptacles 20, 20' and inserts 21, 21' are provided at the opening end of the unit body 28 of the piping unit 1) and at the opening end of the water stop valve 6, respectively. As shown in FIG. 23, opening ends of pipe bodies 2a, 3a, 5a, 7a, 14a, 16a, and 17a of piping members 2, 3, 5, 7, 14, 16, and 17, piping member 1 (temporary piping unit 1 ) of the opening end of the unit body 28 and the opening end of the water stop valve 6, a synthetic resin cylindrical connecting portion 37 having an annular flange 37a covered with the housing-shaped pipe joint 4 on the outer peripheral surface. is provided, and an annular packing 38 is covered on the flange 37a of the cylindrical connecting portion 37 facing each other, and the annular flange 37a and the annular packing 38 are embraced by the split housing-shaped pipe joint 4 and fixed by tightening. Alternatively, the piping members 1, 2, 3, 5, 7, 14, 16, 17 and the water stop valve 6 may be airtightly connected. The cylindrical connecting portion 37 may be connected to the pipe main bodies 2a, 3a, 5a, 7a, 14a, 16a, 17a and the opening end of the unit main body 28 by butt fusion W, or may be connected to the pipe main body 2a. , 3 a , 5 a , 7 a , 14 a , 16 a , 17 a , the unit main body 28 , and the opening end of the stop cock 6 may be integrally formed.

Although the present invention is used for renewal work of water supply pipes laid in building B, it is not limited to this, and can also be used for renewal work, repair work, etc. of gas pipes, drain pipes, etc. laid in building B. It is.

1 Temporary piping unit 2 Straight pipe 3 Cheese 4 Housing type pipe joint 5 Elbow 7 End cap 14 Expansion pipe 15 Flexible joint 16 Reducer 17 Conversion adapter 19 Hook 20 Receptacle 21 22 is a locking means 27 is a ring 28 is a unit body 35 is a locking member 36 is a ring-shaped part 37 is a cylindrical connecting part B is a building L is a temporary pipe line

Claims (8)

A piping member that forms a temporary piping line installed when performing renewal work or repair work on a water supply piping line laid in a building of several stories, and is connected by a split housing-shaped pipe joint. The pipe member comprises a pipe body having at least two open ends, and a tubular flange provided at each open end of the pipe body and covered with a housing-shaped pipe joint on its outer peripheral surface. is provided in any of the receiving port or cylindrical insertion port or cylindrical connecting portion of the pipe body, the cylindrical receiving port, the cylindrical receiving port or the cylindrical connecting portion, and is worn by the worker A plumbing member, comprising: a hook provided on a safety belt or a fall prevention locking means detachably locked to a rope worn by a worker. The piping member is any one of a straight pipe, a cheese, an elbow, an expansion pipe, a tubular flexible joint, a reducer, a tubular end cap, or a tubular conversion adapter each having at least locking means for preventing falling. 2. The piping member according to claim 1, wherein the piping member is characterized by: The piping member comprises a unit body formed by connecting a plurality of synthetic resin pipe bodies by butt fusion, and an annular ring provided at each opening end of the unit body and covered with a housing-shaped pipe joint on the outer peripheral surface. The cylindrical receptacle, the cylindrical insertion opening, or the cylindrical connection part forming the collar part, and the unit main body, the cylindrical receptacle, the cylindrical insertion opening, or the cylindrical connection part. , a hook provided on the safety belt worn by the worker, and a locking means for preventing falling that is detachably locked to the rope worn by the worker. The piping member according to claim 1, characterized by: The locking means includes at least a hook provided on the safety belt worn by the worker, or a ring or ring-shaped portion for detachably locking the rope worn by the worker. The piping member according to any one of claims 1 to 3. A pipe joint for connecting piping members according to any one of claims 1 to 4, wherein the pipe joint
An annular housing divided into two, which consists of a pair of semi-circular housings covering the ends of two piping members, and a connection that rotatably connects connecting pieces provided at one ends of the pair of semi-circular housings. A bolt that is rotatably provided on a pin and a tightening piece provided at the other end of one semicircular housing and inserted between the bifurcated tightening piece provided at the other end of the other semicircular housing; A fastener consisting of a nut that is screwed onto the bolt and tightly locked to the bifurcated fastening piece in a state of surface contact, and a fastener provided on the connecting pin or one of the semicircular housings and worn by the operator. a hook provided on the safety belt worn by the worker and locking means for fall prevention detachably locked to the rope worn by the operator. A pipe joint characterized by: The locking means includes at least a hook provided on the safety belt worn by the worker, or a ring or ring-shaped portion for detachably locking the rope worn by the worker. 6. A pipe joint according to claim 5. A temporary pipeline installed when performing renewal work or repair work on a water supply pipeline laid in a building of several stories, wherein the temporary pipeline is at least according to any one of claims 1 to 4. and the pipe joint according to claim 5 or 6. A method of constructing a temporary pipeline installed when performing renewal work or repair work of a water supply pipeline laid in a building of several stories, wherein the piping member according to any one of claims 1 to 4 is installed. When vertically connecting the pipe joint according to claim 5 or 6, the safety belt worn by the worker is attached to the locking means provided on the piping member or the locking means provided on the pipe joint. A construction method for a temporary pipeline, characterized in that after a hook provided or a rope worn by a worker is locked, the pipeline members are connected to each other with a pipe joint in this state.

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