JP2020063611A - Piping member, pipe fitting for connecting piping member, temporary piping conduit using them and construction method of temporary piping conduit - Google Patents

Abstract

To provide a construction method of a temporary piping conduit, which can prevent a piping member or a housing type pipe fitting from falling, and which allows safe work, when connecting the piping member that forms a vertical piping conduit with the housing type pipe fitting.SOLUTION: The piping member that forms the temporary piping conduit to be installed when performing renewal work or repair work of a water supply piping conduit laid in a multi-storey building, and is connected by a two split housing type pipe fitting comprises: a pipe body that has at least two opening end parts; a cylindrical receiving port, a cylindrical insertion port or a cylindrical connecting part, which is provided at each opening end part of the pipe body and has an annular flange part formed on an outer peripheral surface and covered with the housing type pipe fitting; and locking means for preventing fall provided in any of the pipe body, the cylindrical receiving port, the cylindrical insertion port or the cylindrical connecting part, which is detachably locked to a hook provided on a safety belt worn by a worker or a cable worn by the worker.SELECTED DRAWING: Figure 3

Description

  INDUSTRIAL APPLICABILITY The present invention is a pipe used when renewing or repairing a water supply pipeline (water supply pipeline) laid in a multi-storey building such as a condominium, a school, a hospital, or a building. TECHNICAL FIELD The present invention relates to a member, a pipe joint for connecting piping members, a temporary pipeline using the same, and a method for constructing a temporary pipeline.

  Generally, water supply pipes laid in multi-storey buildings such as apartments, schools, hospitals, buildings, etc., have been generated in water supply pipes such as galvanized steel pipes when they have been used for many years. Rust etc. causes outflow of red water, slimy inside the pipe, 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 problems, and packing Various adverse effects such as water leakage accident due to deterioration will occur.

  Therefore, in the case of a multi-storey building such as an apartment house, when the above-mentioned problem occurs, renewal work or repair work of the water supply pipeline is performed. At this time, in the renewal work and repair work of the water supply pipe line laid in the building, due to the resident's life, it is not allowed to renew or repair the water pipe line due to long-term water interruption.

  As described above, in the conventional renewal work or repair work of the water supply pipeline, since it is not allowed to renew or repair the pipeline due to long-term water interruption for a long period of time, a method of providing a so-called temporary pipeline is adopted (for example, , Patent Document 1 and Patent Document 2).

  A vinyl pipe, a polyethylene pipe, or the like, which is lightweight and has excellent handleability, is widely used in the temporary pipe passage instead of a metal pipe such as a steel pipe. In particular, when a temporary pipe line is laid using a vinyl pipe, an adhesive is used to connect the vinyl pipes to each other for permanent bonding.

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

  In addition, when removing the temporary pipeline, it is necessary to cut the pipe because it is permanently connected, which consumes time and labor, and since the pipe cannot be reused, the temporary pipe after removal is required. Since it is necessary to scrap all the road forming members, there are many problems in resource saving and environmental conservation.

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

  That is, each of the temporary pipe lines, although not shown, a straight pipe formed of a polyethylene resin material, an elbow, cheese, a pipe with a different diameter, a tubing body such as a telescopic pipe is butt-welded appropriately, and at the end portion. A polyethylene resin tubular connection portion is butt-fused at the open end of the pipe body to form a temporary piping unit, and the tubular connection portions of the temporary piping unit are made to face each other, and the tip of the tubular connection portion is opposed. The annular collar formed on the outer peripheral surface of the part is covered with an annular packing, and the annular collar and the annular packing are wrapped in a split housing type pipe joint and tightened to fix the temporary piping units to each other. It is formed by connecting in a gastight manner with a packing and a housing type pipe joint.

  As described above, since the temporary pipe line is formed by connecting the temporary pipe units to each other in an airtight manner with the annular packing and the housing type pipe joint, the temporary pipe line can be easily formed and the construction period can be improved. The temporary piping unit can be easily separated just by removing the pipe joint and the annular packing, and the temporary pipe unit and the pipe joint are hardly damaged when the temporary pipe passage is disassembled. It has the advantage that it can be reused.

  By the way, in the renewal work and repair work of the water supply pipeline using the above-mentioned temporary pipeline, when there is no installation space for the temporary pipeline in a building such as an apartment house, the vertical pipeline that forms the temporary pipeline is updated. It will be installed outside the building only during the period of repair work.

  That is, the vertical pipelines of the temporary pipelines are, for example, arranged in parallel at predetermined intervals at the outer positions of the handrails and the handrails provided in the outer corridor and the outer stairs of buildings such as apartment houses. Each of the vertical pipe lines is connected to a meter unit equipped with a water meter installed in a meter box or pipe space of each dwelling unit in a building by a water supply pipe such as a water supply hose.

  By the way, the vertical pipe line of the temporary pipe line is provided from the roof of the building to the floor at the bottom, and when installed on the outer side of the handrail wall or handrail provided in the outer corridor or stairs of the building, etc. In addition, straight pipes, cheeses, elbows, and other pipe main bodies and temporary piping units are sequentially connected from the rooftop of the building to the downstairs by an annular packing and a housing-type pipe joint.

However, when constructing the vertical pipeline of the temporary pipeline on the outside of the building, the connection between the pipe main bodies, the connection between the pipe main body and the temporary pipe unit, or the connection between the temporary pipe units is performed with an annular packing and a housing type pipe joint. When using a pipe, the pipe body, temporary pipe unit, and housing type pipe joint may be dropped, resulting in personal injury or damage to the building, the pipe body that has fallen, the temporary pipe unit, and the housing type pipe joint.・ There was a problem of being damaged.
In particular, in the temporary piping unit, since it is formed by abutting and fusing a plurality of pipe main bodies and tubular connecting portions, it is rather heavy and the impact at the time of dropping is large, and the above problems are further promoted. Will be.

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

  The present invention has been made in view of such problems, and an object thereof is to install a piping member that forms a vertical piping path in a housing when a vertical piping path of a temporary piping path is installed outside a building. -Type pipe fittings prevent pipe members and housing-type pipe fittings from falling when connected, and enable safe work and prevent damage and damage to buildings, piping members, and housing-type pipe fittings. To provide a pipe member, a pipe joint for connecting the pipe members, a temporary pipe line using them, and a construction method for the temporary pipe line.

  In order to achieve the above object, the pipe member according to claim 1 of the present invention is a temporary pipe line provided when renewing or repairing a water supply pipe line laid in a multi-storey building. And a pipe member connected by a split-type housing-type pipe joint, wherein the pipe member is provided at each open end of the pipe main body having at least two open end portions. , A cylindrical receiving port or a cylindrical insertion port or a cylindrical connecting part formed with an annular flange part which is covered by a housing type pipe joint on the outer peripheral surface, and the pipe body, the cylindrical receiving port, the cylindrical insertion It is provided at either the mouth or the tubular connection part, and it is detachably locked to a hook provided on the safety belt worn by the worker or a cord worn by the worker for fall prevention. And a locking means.

  The pipe member according to claim 2 of the present invention is the pipe member according to claim 1, wherein the pipe member is a straight pipe, cheese, an elbow, a telescopic pipe, each pipe member being provided with at least locking means for preventing fall. It is characterized by being any one of a tubular flexible joint, a reducer, a tubular end cap, and a tubular conversion adapter.

  A 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 welding, A cylindrical receiving port or a cylindrical insertion port or a cylindrical connecting part, which is provided at each opening end of the unit main body and has an annular flange portion which is covered with a housing-type pipe joint on the outer peripheral surface, and the unit main body. Attached to the hook provided on the safety belt worn by the worker or the cord worn by the worker, which is provided at any of the tubular receiving port, the tubular insertion port, or the tubular connecting portion. The temporary piping unit is characterized in that it is provided with locking means for free fall locking.

  The piping member according to claim 4 of the present invention is the piping member according to any one of claims 1 to 3, wherein the locking means is a hook or a work provided at least in a safety belt worn by an operator. It is characterized in that the cord worn by the person is provided with a ring or a ring-shaped portion on which the cord 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 covers end portions of the two pipe members. A split annular housing consisting of a pair of semi-circular housings, a connecting pin that rotatably connects the connecting pieces provided at one end of the pair of semi-circular housings, and one of the semi-circular housings A bolt that is rotatably provided on a tightening piece provided at an end and is inserted between two forked tightening pieces provided at the other end of the other semi-circular housing and a forked shape screwed to the bolt. A tightening tool composed of a nut that is tightly locked to the tightening piece in a surface contact state, and a hook or worker provided on the connecting pin or one of the semicircular housings and provided on a safety belt worn by the worker. Detachably attached to the cord worn by And locking means for fall prevention that is, it is characterized in that it is configured in the housing-shaped pipe joint having a.

  A pipe joint according to a sixth aspect of the present invention is the pipe joint according to the fifth aspect, wherein the locking means is at least a hook provided on a safety belt worn by the worker or worn by the worker. It is characterized in that the cords provided are provided with a ring or a ring-shaped portion that is detachably locked.

  The temporary pipeline according to claim 7 of the present invention is a temporary pipeline provided when performing renewal work or repair work of a water supply pipeline laid in a multi-storey building, and the temporary pipeline The passage is characterized by including at least the piping member according to any one of claims 1 to 4 and the pipe joint according to claim 5 or 6.

  The method for constructing a temporary pipeline according to claim 8 of the present invention is a method for constructing a temporary pipeline provided when renewing or repairing a water supply pipeline laid in a multi-storey building. When connecting the pipe member according to any one of claims 1 to 4 in the longitudinal direction with the pipe joint according to claim 5 or 6, the locking means provided on the pipe member and the pipe joint are provided. After locking the hooks provided on the safety belt worn by the worker or the cords worn by the worker to the locking means provided, the pipe members are connected by pipe joints in this state. There is a feature in doing so.

The present invention relates to a piping member that forms a temporary piping passage and a housing-type pipe joint that connects the piping member to a hook provided on a safety belt worn by an operator and a cord worn by the operator. Since locking means for fall prevention that is detachably locked to each of the pipes is provided, when connecting the piping members in the vertical direction, the locking means provided to the piping member and the housing type pipe joint respectively, By locking the hooks provided on the safety belt worn by the worker or the cords 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 is capable of working safely when constructing a temporary pipeline (vertical pipeline) on the outside of a building, and at the same time, a building, a pipeline member, or a housing type pipe or housing type pipe fitting due to a drop of the pipe or housing type pipe joint. It is possible to prevent damage and breakage of the pipe joint, etc.

  Further, according to the present invention, the locking means includes a ring or a ring-shaped portion on which a hook provided on a safety belt worn by an operator or a cord worn by the operator is detachably locked. Therefore, the ring or the ring-shaped portion of the locking means and the hook or the rope of the safety belt can be locked securely and firmly, and the piping member and the housing type pipe joint are surely prevented from falling. be able to.

FIG. 3 is a piping split diagram showing an example in which a temporary piping path is provided in a building such as a condominium by using the piping member according to the embodiment of the present invention. FIG. 3 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 a building by a fixing bracket, and the vertical pipe line and a meter unit are connected by a water supply hanging pipe. The straight pipe which forms a piping member is shown, (A) is the front view of the straight pipe which provided the receiving end in one end part, and provided the insertion port in the other end part, (B) is the top view of the same straight pipe, (C) 3D is a vertical sectional front view of a straight pipe, and FIG. 3D is an enlarged cross-sectional view taken along line aa of FIG. 3B. It is a front view of cheese which shows a cheese which forms a piping member, and has a receiving opening and an insertion opening at both ends and a receiving opening at a T-shaped protrusion. It is a front view of the elbow which shows the elbow which forms a piping member, and which has a receiving port at one end and an insertion port at the other end. It is a front view of an expansion tube which shows an expansion tube which forms a piping member, and which has a receiving port at one end and an insertion port at the other end. It is a front view of the flexible joint which shows the flexible joint which forms a piping member, and provided the receiving opening in one end and the insertion opening in the other end. It is a front view of the reducer which shows a reducer which forms a piping member, and which has a receiving opening at one end and an insertion opening at the other end. It is a front view of the end cap which shows the end cap which forms a piping member, and was provided with the receptacle at the opening end. It is a front view of the conversion adapter which shows the conversion adapter which forms a piping member, and provided the receiving opening in one end. It is a front view of the temporary piping unit which forms a piping member. FIG. 12 is a partially omitted enlarged vertical front view of the temporary piping unit shown in FIG. 11. A 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, 6D is a rear view of the housing-type pipe joint, FIG. 6E is a plan view of the housing-type pipe joint, and FIG. 6F is a bottom view of the housing-type pipe joint. It is the bb line expanded sectional view of FIG. 13 (A). FIG. 14 is an enlarged sectional view taken along line cc of FIG. It is a front view of the water stopcock provided with the locking means for fall-out prevention. FIG. 6 is an enlarged view of a main part showing a state in which piping members are connected to each other by a housing-type pipe joint. It is an expanded sectional view of the important section showing the state where piping members were connected by a housing type pipe joint. It is a top view which shows the other example of the locking means provided in a piping member. It is a front view which shows another example of the locking means provided in a piping member. It is a front view which shows another example of the locking means provided in a piping member. Another example of the locking means provided in the housing type pipe joint is shown, (A) is a front view of the housing type pipe joint in which the locking means is a ring portion, and (B) is the locking means as a ring. It is a front view of the housing type pipe joint. At each open end of the piping member, a tubular connection part with an annular collar that is covered by the housing type pipe joint is provided, and the piping members are surrounded by an annular packing and a split housing type pipe joint. FIG. 6 is a cross-sectional view of a main part in a state in which it is tightly clamped and fixed.

Hereinafter, embodiments of the present invention will be described in detail with reference to 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. FIG. 3 is a piping layout diagram showing an example of installation in an apartment house such as an apartment, wherein the temporary pipeline L is an existing water supply pipeline (water supply pipeline) laid in a multi-storey building B such as an apartment house. It is installed outside the building B so that the renewal work or repair work of the water supply pipeline can be performed without interrupting the water supply for a long time when the renewal work or repair work of All of which are connected to an existing water pipe (not shown) connected to an existing water pipe (not shown), and a temporary rooftop pipeline L1 arranged on the roof of the building B, and a building connected to the temporary rooftop pipeline L1. From the rooftop of B to the bottom floor (F1) Disposed Jo and vertical distribution line L2 of the plurality of temporary, and a.

  The temporary rooftop pipeline L1 is, as shown in FIG. 1, a straight pipe 2, a cheese 3 (cheese of the same diameter or cheese of a different diameter), a housing-type pipe joint 4, a water stopcock (not shown) such as a ball valve, An elbow (not shown), a flexible joint (not shown), and the like are provided and are formed by sequentially connecting the members 2 and 3 with a housing-type pipe joint 4. This temporary rooftop pipeline L1 has an existing water pipe (not shown) in which a member located at the most upstream side is connected to a water supply tank or pump (not shown) via a VS joint (not shown). (Omitted), so that tap water flows in from the existing water pipe.

  On the other hand, the plurality of temporary vertical pipelines L2 are, as shown in FIG. 1, a temporary pipeline unit 1, a straight pipe 2, a cheese 3, an elbow 5, a water stopcock 6 (ball valve), a housing type pipe joint 4, It is provided with end caps 7 and the like, and is formed by connecting the members 1, 2, 3, 5, 6, 7 in series with a housing type pipe joint 4. Each of these vertical pipelines L2 is arranged in parallel at the outer position of the outer corridor provided in the building B, and is fixed to the handrail wall B1 of the outer corridor by the fixing metal fittings 8 (see FIG. 2). ). The fixing metal fitting 8 is detachably fixed to the upper end portion of the handrail wall B1, and holds and fixes a part of the vertical pipe line L2 arranged along the outer surface of the handrail wall B1.

  Further, as shown in FIG. 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 a meter box S (or a pipe space) of each dwelling unit of a building B, respectively. They are connected by a water supply suspension pipe 9, and tap water flowing in the vertical pipe line L2 is supplied to each dwelling unit by the water supply suspension pipe 9.

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

  The piping members forming the rooftop piping line L1 and the vertical piping line L2 are at least the temporary piping unit 1, the straight pipe 2, the cheese 3, the elbow 5, the cylindrical end cap 7, the expansion pipe 14, and the cylindrical flexible pipe. It comprises a joint 15, a reducer 16, a tubular conversion adapter 17, and the like.

  These pipe members 2, 3, 5, 7, 14, 15, 16, 17 are made of synthetic resin except for the temporary pipe unit 1 and are made of synthetic resin, and are made of synthetic resin pipes 2a, 3a, 5a, 7a, 14a, 15a, 16a, 17a. And annular flanges 20c, 21d which are provided at the open ends of the pipe bodies 2a, 3a, 5a, 7a, 14a, 15a, 16a, 17a and are covered by the housing-type pipe joint 4 on the outer peripheral surface. The synthetic resin cylindrical receiving port 20 or the cylindrical inserting port 21 and the pipe body 2a, 3a, 5a, 7a, 14a, 15a, 16a, 17a, the receiving port 20 or the inserting port 21 are provided. Locking means 22 for fall prevention that is detachably locked to a hook 19 provided on a safety belt (not shown) worn by the worker or a cord (not shown) worn by the worker And (see FIGS. 3 to 10). . The pipe diameters, lengths, wall thicknesses, sizes, etc. of these pipe members 2, 3, 5, 7, 14, 15, 16, 17 can be freely set, and are appropriately set according to the situation of the site. They are selected and combined to form a temporary pipeline L.

  A conventionally known trunk belt type safety belt or a full harness type safety belt is used as the safety belt, and a rope 19 provided on the safety belt is provided with a hook 19 which can be opened and closed. There is. Although not shown, flexible ropes, cords, wires, chains, etc. are used for the ropes connected to the locking means 22 for preventing fall, and the base end portions of these are used. The side is connected to a safety belt or is tied directly to the worker's body.

  3 (A) to (D) show a straight pipe 2 forming a piping member, and the straight pipe 2 is a straight pipe body 2a made of synthetic resin and abutted on one opening end of the pipe body 2a. Synthetic resin cylindrical receiving port 20 connected by fusion welding W, and synthetic resin cylindrical insertion port 21 connected by butt fusion welding W to the other opening end of the pipe body 2a, and receiving port 20 Locking means 22 for preventing fall provided on the. Into the receiving port 20 of the straight pipe 2, the insertion ports 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably attached in an airtight state, and The receiving ports 20 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably attached to the insertion port 21 of the straight pipe 2 in an airtight state. ing.

  A receiving cylinder portion 20a having a larger diameter than the base end portion of the receiving opening 20 is integrally formed at the distal end portion of the receiving opening 20, and the other piping members 1 and 2 are provided at the distal end portion of the insertion opening 21. , 3, 5, 7, 14, 15, 15, 16 and 17 are integrally formed with an insertion tube portion 21a which is detachably attached in an airtight manner to the reception opening 20 provided in the reception opening 20. Two rows of annular O-ring grooves 21b into which the O-rings 23 are fitted are formed on the outer peripheral surface of 21a, and the inner peripheral surface of the receiving tubular portion 20a of the receiving opening 20 and the outer peripheral surface of the inserting tubular portion 21a of the insertion opening 21 are formed. The space is sealed by an O-ring 23.

  Further, a taper surface 20b is formed on the inner peripheral edge of the receiving tubular portion 20a of the receiving port 20 and gradually decreases in diameter as it goes inward, and the outer peripheral edge of the inserting tubular portion 21a of the insertion port 21 is formed. , Chamfered 21c is provided, and the receiving ports 20 of the pipe members 1, 2, 3, 5, 7, 14, 15, 16, 16 and the other pipe members 1, 2, 3, 5, 7, 14, 15, The insertion of the 16 and 17 into the insertion opening 21 is made easy and easy.

  Further, the outer peripheral surface of the receiving tubular portion 20a of the receiving opening 20 and the outer peripheral surface of the insertion opening 21 adjacent to the inserting tubular portion 21a are covered with a housing joint pipe 4 having a split shape, and are in close contact with each other. The ring-shaped collar portions 20c and 21d which are fastened and fixed to each are formed respectively.

  Further, a separation groove 21e into which a tool (minus screwdriver, etc.) for separating the receiving opening 20 and the insertion opening 21 inserted in a butt shape is inserted into the outer end surface of the flange portion 21d of the insertion opening 21 is 180 degrees. Two are formed with a space of.

  The locking means 22 for preventing the fall is a safety belt worn by an operator when connecting the pipe members 1, 2, 3, 5, 7, 14, 15, 16, 17 (see the figure). The pipe members 1, 2, 3, 5, 7, 14, 15, 16, 17 are dropped by being hooked to a hook 19 provided on the (not shown) or a cord (not shown) worn by the operator. A ring 27 (or ring-shaped portion) to which at least the hook 19 of the safety belt is detachably attached, or a ring 27 (or ring-shaped portion) to which the tip end of the cord is tied. Section).

  That is, as shown in FIGS. 3A to 3D, the locking means 22 is formed of, for example, a strip-shaped metal plate that is detachably fitted onto the outer peripheral surface of the small diameter portion of the receiving port 20 of the straight pipe 2. Two semi-circular band portions 24a, a hinge 25 that allows the two band portions 24a to be opened and closed by rotatably connecting the ends of the two band portions 24a, and a free end of the two band portions 24a. A circular pipe support fitting 24 formed of a pair of opposed fastening pieces 24b and a pair of fastening pieces 24b of the pipe support fitting 24 are fastened and fixed to each other to fix the pipe support fitting 24 to the outer peripheral surface of the receiving port 20. The tightening tool 26 composed of a bolt and a nut and the through hole 24c formed in the pair of tightening pieces 24b are inserted and locked, and are worn by the hook 19 provided on the safety belt worn by the worker or the worker. Line It includes a metal ring 27 which end is locked removably, the.

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

  In the above embodiment, the straight pipe 2 is provided with the tubular receiving port 20 at one opening end of the pipe body 2a and the tubular insertion port 21 at the other opening end of the pipe body 2a. Although not shown, in other embodiments, the straight pipe 2 may have a configuration in which tubular receiving ports 20 are provided at both open end portions of the pipe body 2a. A cylindrical insertion port 21 may be provided at each of both open ends of the main body 2a.

  FIG. 4 shows a cheese 3 that forms a piping member, and the cheese 3 is connected to both open end portions of the T-shaped tube body 3a made of a synthetic resin and the tube body 3a by butt fusion welding W, respectively. A cylindrical receiving port 20 and a cylindrical insertion port 21 made of synthetic resin, and a cylindrical receiving port 20 made of synthetic resin connected to the T-shaped protruding portion 3a ′ of the tube body 3a by butt fusion welding W, And a locking means 22 provided at one of the receiving ports 20 for preventing fall. Into the receiving port 20 of this cheese 3, the insertion ports 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16, 16 are detachably inserted in an airtight state, and the cheese The receiving ports 20 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are removably inserted into the insertion port 21 of No. 3 in an airtight state. .

  In the above embodiment, the cheese 3 is provided with the tubular receiving port 20 and the insertion port 21 at both open end portions of the tube main body 3a, respectively, and the cylindrical receiving port 20 is provided on the protruding portion 3a 'of the tube main body 3a. Although not shown in the drawings, the cheese 3 has a cylindrical receiving port 20 at both open end portions of the tube main body 3a and at the open end portions of the projecting portions 3a '. It is also possible to provide a cylindrical receiving opening 20 and a cylindrical insertion opening 21 at both open end portions of the tube body 3a, respectively, and to provide a tube at the opening end portion of the projecting portion 3a 'of the tube body 3a. -Shaped insertion openings 21 may be provided, and further, cylindrical insertion openings 21 may be provided at both open end portions of the pipe body 3a and the open end portions of the projecting portions 3a '. On both open ends of the body 3a Jo of inserted ports 21 provided with each may be provided with a cylindrical socket 20 at the open end of the protruding portion 3a 'of the pipe main body 3a.

  FIG. 5 shows an elbow 5 forming a piping member. The elbow 5 is a synthetic resin L-shaped pipe body 5a and a synthetic body connected by butt fusion welding W to one open end of the pipe body 5a. A cylindrical receiving port 20 made of resin, a cylindrical insertion port 21 made of synthetic resin connected to the other opening end of the pipe body 5a by butt fusion welding W, and a fall prevention member provided at the receiving port 20. And a stopping means 22. An insertion port 21 provided in each of the other piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 is detachably attached in an airtight state to the receiving port 20 of the elbow 5, and the elbow is also attached. The receiving ports 20 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 15, 16 and 17 are removably attached to the insertion port 21 of 5 in an airtight state. .

  In the above-described embodiment, the elbow 5 is provided with the tubular receiving port 20 at one opening end of the tube body 5a and the tubular insertion port 21 at the other opening end of the tube body 5a. However, in other embodiments, although not shown, the elbow 5 may have a configuration in which tubular receiving ports 20 are provided at both open end portions of the tube body 5a, or the tube body 5 A cylindrical insertion port 21 may be provided at each of both opening ends.

  FIG. 6 shows a telescopic tube 14 forming a piping member. The telescopic tube 14 includes a pipe main body 14a having a double structure in which two pipes made of synthetic resin having different diameters are slidably fitted, and two pipes. An expansion and contraction adjuster 14b capable of fixing both pipes at an arbitrary connecting position to the connecting portion of, and a synthetic resin cylindrical receiving port 20 connected to one open end of the pipe body 14a by butt fusion welding W, The other opening end of the pipe body 14a is provided with a synthetic resin cylindrical insertion port 21 connected by butt fusion W, and locking means 22 for preventing fall provided in the receiving port 20. An insertion port 21 provided in each of the other piping members 1, 2, 3, 5, 7, 14, 15, 16, and 17 is detachably attached in an airtight state to the receiving port 20 of the expansion tube 14. The receiving ports 20 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably attached to the insertion port 21 of the expansion tube 14 in an airtight state. ing.

  In the above embodiment, the expandable tube 14 is provided with the tubular receiving port 20 at one opening end of the tube body 14a and the tubular insertion port 21 at the other opening end of the tube body 14a. Although it is configured, in other embodiments, although not shown, the expandable tube 14 may have a configuration in which tubular receiving ports 20 are provided at both open end portions of the tube body 14a. A cylindrical insertion port 21 may be provided at each of both opening ends of the main body 14a.

  FIG. 7 shows a tubular flexible joint 15 forming a piping member. The flexible joint 15 is a flexible metal pipe body 15a and a synthetic body connected to one open end of the pipe body 15a. A resin-made tubular receiving port 20, a synthetic resin-made tubular insertion port 21 connected to the other separated end of the tube body, and locking means 22 for preventing fall provided in the receiving port 20. I have it. Into the receiving port 20 of the flexible joint 15, the insertion ports 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are removably inserted in an airtight state, and Receptacles 20 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16, 16 are removably attached in an airtight state to the insertion openings of the flexible joints. .

  In the above-described embodiment, the flexible joint 15 is provided with the tubular receiving port 20 at one opening end of the pipe body 15a and the tubular insertion port 21 at the other opening end of the pipe body 15a. Although not shown, in other embodiments, the flexible joint 15 may have a configuration in which tubular receiving ports 20 are provided at both open end portions of the pipe body 15a. A cylindrical insertion port 21 may be provided at each of both open ends of the main body 15a.

  FIG. 8 shows a reducer 16 that forms a piping member. The reducer 16 is a straight-lined pipe body 16a made of synthetic resin having different diameters at both ends, and a butt fusion at one open end of the pipe body 16a. A synthetic resin tubular receiving port 20 connected by a welding W, a synthetic resin tubular receiving port 21 connected by a butt fusion welding W to the other opening end of the pipe body 16a, and a receiving port 20. The provided locking means 22 is provided. Into the receiving port 20 of the reducer 16, the insertion ports 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably attached in an airtight state, and The receiving port 20 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 is detachably inserted into the insertion port 21 of the reducer 16 in an airtight state. ing.

  In the above embodiment, the reducer 16 is provided with the tubular receiving port 20 at one opening end of the pipe body 16a and the tubular insertion port 21 at the other opening end of the pipe body 16a. Although not shown, in other embodiments, the reducer 16 may have a configuration in which tubular receiving ports 20 are provided at both open end portions of the pipe body 16a. A cylindrical insertion port 21 may be provided at each of both open ends of the main body 16a.

  FIG. 9 shows an end cap 7 forming a piping member. The end cap 7 is made of a synthetic resin straight pipe main body 7a with one end closed, and a butt fusion welding W at the open end of the pipe main body 7a. A cylindrical receiving port 20 made of synthetic resin and connected by means of a locking means 22 for preventing fall provided on the receiving port 20. Into the receiving port 20 of the end cap 7, the insertion ports 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably attached in an airtight state. Has become.

  In the above-described embodiment, the end cap 7 has a configuration in which the tubular receiving port 20 is provided at the open end portion of the pipe body 7a, but in other embodiments, the end cap 7 is not shown. Alternatively, the tubular insertion port 21 may be provided at the open end of the tube body 7a.

  FIG. 10 shows a conversion adapter 17 forming a piping member. The conversion adapter 17 is made of a synthetic resin pipe main body 17a and a synthetic resin pipe connected by butt fusion W to one opening end of the pipe main body 17a. It has a cylindrical receiving port 20 and locking means 22 provided in the receiving port 20 for preventing fall. The insertion ports 21 provided in the other piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17 are detachably attached to the receiving port 20 of the conversion adapter 17 in an airtight state. Has become.

  In the above-described embodiment, the conversion adapter 17 has a configuration in which the tubular receiving port 20 is provided at one opening end of the pipe body 17a, but in other embodiments, the conversion adapter 17 is not shown. The adapter 17 may have a configuration in which a tubular insertion port 21 is provided at one open end of the pipe 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 receiving port 20 and the inserting port 21 of the conversion adapter 17 which form the above-mentioned piping member are all made of polyethylene. It is made of a resin material. Further, 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 pipe body 2a, 3a, 5a, 7a, 14a, 15a of the conversion adapter 17, which form the piping member. , 16a, 17a are made of polyethylene resin material except for the flexible joint 15. Further, 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 receiving port 20 of the conversion adapter 17, the insertion port 21, and the locking means 22 that form the piping member are All have the same shape and the same structure.

  In addition, 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 above-mentioned piping member, all of them are provided in the receiving opening 20 for preventing fall. Although the locking means 22 is provided, the pipe bodies 2a, 3a, 5a, 7a, 14a, 15a, 16a, 17a of the respective piping members 2, 3, 5, 7, 14, 15, 15, 16 or 17 or the insertion port. 21 may be provided with locking means 22 for preventing fall.

  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 pipes by butt fusion W, and a unit main body. A cylindrical receiving port 20 and a cylindrical insertion port 21 made of synthetic resin, which are provided at the respective open end portions of 28 and have annular flanges 20c, 21d formed on the outer peripheral surface by the housing-type pipe joint 4; For the hook 19 provided on the safety belt worn by the worker or the cord worn by the worker, which is provided on the unit main body 28, the cylindrical receiving port 20, or the cylindrical insertion port 21. And locking means 22 for fall prevention that is detachably locked.

  Further, the tubular body forming the unit main body 28 is a straight pipe 28a, cheese 28b, elbow (not shown) or expansion pipe (not shown) different from the above-mentioned piping members 2, 3, 5, 7, 14, 15, 16, and 17. (Not shown).

  In this embodiment, the temporary piping unit 1 includes a unit main body 28 formed by connecting a polyethylene resin straight pipe 28a and a polyethylene resin cheese 28b by butt fusion welding W, and a cheese 28b of the unit main body 28. A cylindrical receiving port 20 made of polyethylene resin, which is connected by a butt fusion W and is detachably inserted in an insertion port 21 of another temporary piping unit 1 in an airtight state, and a butt fusion to a straight pipe 28a of a unit main body 28. A tubular insertion opening 21 made of polyethylene resin, which is connected by the attachment W and is detachably inserted in a receiving opening 20 of another temporary piping unit 1 in an airtight state, and a T-shaped protruding portion of the cheese 28b of the unit main body 28. 28b 'is connected by a butt fusion welding W and is made of polyethylene resin. A cylindrical branch port 29, a joint 30 provided at the tip of the branch port 29, and a receiving port 0, which is provided with a hook 19 provided on a safety belt worn by the worker and a locking means 22 for preventing fall that is removably locked to a cord worn by the worker. The insertion port 21 of the other temporary piping unit 1 is removably inserted into the receiving port 20 and the receiving port 20 of the other temporary piping unit 1 is detachably inserted into the insertion port 21 in an airtight state. The ends of the piping unit 1 are connected in series by connecting the ends of the piping unit 1 with a housing-type pipe joint 4.

  In addition to the other temporary piping unit 1, the receiving port 20 and the insertion port 21 of the temporary piping unit 1 are straight pipes 2, elbows 3, cheeses 5, water stopcocks 6, end caps 7, expansion pipes, which are piping members. 14, the flexible joint 15, the reducer 16, the conversion adapter 17, etc. are detachably connected via the housing type pipe joint 4.

  In addition, the length (height) of the temporary piping unit 1 is set to a length that matches the floor height of the building B, and the temporary piping units 1 are vertically connected to connect the temporary piping unit 1 to the outside corridor of the building B. When arranged in the outer position, the temporary piping units 1 are surely arranged one by one on each floor of the building B, and the positions of the branch port 29 and the joint 30 of the temporary piping unit 1 are surely smaller than the ceiling surface B2 of each floor. It is located in a low position.

  The receiving port 20, the insertion port 21 and the locking means 22 of the temporary piping unit 1 are the receiving port 20, the insertion port 21 and the locking means of the other piping members 2, 3, 5, 7, 14, 15, 16, 16. 22 is formed in the same shape and the same structure as 22, and is formed in the same site / member as the receiving port 20, the insertion port 21 and the locking means 22 of the other piping members 2, 3, 5, 7, 14, 15, 16, 17. Have the same reference numbers.

  Further, as shown in FIG. 12, the joint 30 of the temporary piping unit 1 is fixed to the end face of the branch port 29 and the short pipe 30b which is hermetically inserted into the branch port 29 via the sealing material 30a. It is provided with a lock nut 30c for preventing the 30b from coming off and a union nut 30d fitted onto the short pipe 30b so as to be rotatable and movable in the axial direction, and has the same structure as a conventionally known union joint. .

  In the above 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, but the configuration of the temporary piping unit 1 is as described above. The present invention is not limited to the embodiment described above, and may have any form and structure as long as it has at least a plurality of pipes, the receiving port 20, the insertion port 21, and the locking means 22.

  Further, in the above embodiment, the temporary piping unit 1 as shown in FIG. 11 is used for a part of the temporary vertical piping path L2, but in other embodiments, the temporary piping unit 1 is omitted, and a plurality of temporary piping units 1 are omitted. The pipe members 2, 3, 5, 7, 14, 15, 16, 17 may be connected in series by the housing type pipe joint 4 to form a temporary vertical pipe line L2.

  13 to 15 show a housing-type pipe joint 4 having a split shape, and the housing-type pipe joint 4 is capable of detachably attaching piping members 1, 2, 3, 5, 7, 14, 15, 16, 17 and the like. To connect to.

  That is, as shown in FIGS. 13 to 15, the housing-type pipe joint 4 includes the receiving port 20 and the insertion port 20 provided in the connecting pipe members 1, 2, 3, 5, 7, 14, 15, 16, 17. A split annular housing 31 composed of a pair of semi-circular housings 31 'formed of a polyethylene resin material which covers both the flange portions 20c and 21d, and a connection provided at one end of one semi-circular housing 31'. A connecting pin 32 for rotatably connecting the piece 31a and a bifurcated connecting piece 31 'provided at one end of the other semi-circular housing 31', and the other end of the one semi-circular housing 31 '. A bolt that is rotatably provided on the provided bifurcated tightening piece 31b through a mounting pin 33 and is inserted between the bifurcated tightening piece 31b provided on the other end of the other semicircular housing ′ 31 ′. 34a and the The tightening tool 34 including a nut 34b that is screwed to the toe 34a and is locked in a surface contact state with the bifurcated tightening piece 31b, and the connecting pin 32. The tightening tool 34 is provided on the safety belt worn by the worker. The hook 19 and the locking means 22 for fall prevention, which is detachably locked to the cord worn by the operator, are provided.

  The locking means 22 for preventing the drop is provided with a locking member 35 having a U-shaped planar shape which is attached to both ends of a connecting pin 32 which rotatably connects the pair of semicircular housings 31 '. The U-shaped locking member 35 is a ring-shaped portion to which the hook 19 provided in the safety belt and the tip of the cord are detachably locked. The U-shaped locking member 35 is configured to rotate together with the connecting pin 32 about the axis of the connecting pin 32.

  In the housing type pipe joint 4, as shown in FIG. 14, the surface of the semicircular housing 31 'that is engaged with the nut 34b of the bifurcated tightening piece 31b is inclined upward as it goes outward. Even if the nut 34b is formed on the inclined surface 31c and the nut 34b is loosened with respect to the bolt 34a and the bolt 34a tries to rotate in the direction of coming out from between the bifurcated tightening pieces 31b, the nut 34b moves to 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 stopcock 6 provided in the rooftop pipe line L1 and the vertical pipe line L2. The water stopcock 6 has a ball valve structure, and the pipe members 1, 2, 3, 5 ,. A cylindrical insertion port 21 'that is removably inserted in the receiving port 20 of 7, 14, 15, 16, 17 in an airtight state and other piping members 1, 2, 3, 5, 7, 7, 14, 15, A cylindrical receiving port 20 'that is removably and removably inserted in the insertion ports 21 of 16 and 17 and a hook 19 provided with a safety belt provided on the water shutoff body 6a and provided by an operator And a locking member 22 for fall prevention, which is removably locked to a cord worn by a person, and is connected to the piping members 1, 2, 3, 5, 7 by the housing-type pipe joint 4. , 14, 15, 16, 17 are connected in an airtight manner.

The locking means 22 for preventing the drop is formed in the same shape and the same 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, 7, 14, 15, 16 and 17 are given the same reference numerals.
Further, in FIG. 16, 20a 'is a flange portion of the receiving opening 20', 21a 'is an insertion cylindrical portion of the insertion opening 21', 21b 'is a flange portion of the insertion opening 21', and 23 is an O-ring.

  Thus, as shown in FIG. 1, the above-mentioned temporary rooftop pipeline L1 has a housing for a straight pipe 2, cheese 3, a water stopcock (not shown), an elbow (not shown), a flexible joint (not shown), and the like. Formed by sequentially connecting the pipe fittings 4 of the same shape. This temporary rooftop pipeline L1 is connected to an existing water pipe (not shown) whose upstream side portion is connected to a water supply tank or pump (both not shown) via a VS joint (not shown) or the like. The tap water flows in from the existing water pipe.

  As shown in FIGS. 1 and 2, the temporary vertical pipe line L2 described above includes a temporary pipe unit 1, a straight pipe 2, a cheese 3, an elbow 5, a water stopcock 6 and an end cap 7 in a housing-type pipe. The joint 4 is connected sequentially, and the joint 30 of each temporary piping unit 1 and the meter unit U equipped with the water meter M housed in the meter box S of each dwelling unit of the building B are respectively connected by the water supply suspension piping 9. It is formed by In this temporary vertical pipeline L2, the water stopcock 6 located on the most upstream side is connected to the cheese 3 of the temporary rooftop pipeline L1 via the housing-type pipe joint 4, and the temporary rooftop pipeline L1. Tap water is coming in from. Further, the vertical pipeline L2 is fixedly supported by the handrail wall B1 of the building B or the like by a fixing metal fitting.

  Each member such as the temporary piping unit 1, the straight pipe 2, the cheese 3, the elbow 5, and the end cap 7 has an insertion port 20 for each member 1, 2, 3, 5, 7 as shown in FIGS. 17 and 18. After applying the lubricant to the O-ring 23 provided in the above, the insertion port 21 coated with the lubricant is inserted into the receiving ports 20 of the other members 1, 2, 3, 5, 7 in an airtight manner through the O-ring 23 to receive the receiving port. 20 and the annular flanges 20c and 21d formed on the outer peripheral surface of the insertion opening 21 are covered with the annular housing 31 of the housing type pipe joint 4, and the bolt 34a of the tightening tool 34 is tightened in the bifurcated shape of the semicircular housing 31 '. The nuts 34b are inserted between the pieces 31b and screwed to the bolts 34a, and the tightening pieces 31b of the pair of semi-circular housings 31 'are fastened and fixed together to establish an airtight connection.

  By the way, in the case of constructing the temporary vertical pipeline L2, in the building B of the type where water is supplied from the roof, the vertical pipeline L2 is constructed from the roof of the building B toward the downstairs. , 2, 3, 5, 7 were connected by the housing type pipe joint 4, the pipe members 1, 2, 3, 5, 7 and the housing type pipe joint 4 were sometimes dropped.

  Therefore, when constructing the vertical pipeline L2, the ring 27 of the locking means 22 provided on the piping members 1, 2, 3, 5, 7 and the locking means 22 provided on the housing type pipe joint 4 are connected. After hooking the hook 19 provided on the safety belt worn by the worker or the cord worn by the worker to the character-shaped locking member 35 (ring-shaped portion), each pipe is placed in this state. The members 1, 2, 3, 5, 7 are connected to each other. Even when the water stopper 6 is connected to each of the piping members 1, 2, 3, 5, 7 by the housing-type pipe joint 4, the safety belt is attached to the ring 27 of the locking means 22 provided on the water stopper 6. The hooks 19 and the ropes provided on the are locked.

  By doing so, it is possible to prevent the piping members 1, 2, 3, 5, 7 and the housing type pipe joint 4 and the water shutoff valve 6 from falling. As a result, when constructing the temporary pipeline L on the outside of the building, it is possible to work safely, and the piping members 1, 2, 3, 5, 6, 7 and the housing type pipe joint 4 and the water shutoff valve 6 fall. It is possible to prevent the building and the piping members 1, 2, 3, 5, 7 and the housing-type pipe joint 4 and the water shutoff valve 6 from being damaged or broken by the above.

In addition, in the above-described piping members 1, 2, 3, 5, 7 and the water shutoff valve 6, the following excellent effects can be achieved.
(1) Since the piping members 1, 2, 3, 5, 7 and the water shutoff valve 6 have the receiving openings 20, 20 'and the insertion openings 21, 21', the insertion openings 21, 21 'are inserted in the receiving openings 20, 20'. ′ Is attached in an airtight manner and the housing type pipe joint 4 is attached to the receiving ports 20 and 20 ′ and the inserting ports 21 and 21 ′. , 2, 3, 5, 7 and the water shutoff valve 6 can be connected, the vertical pipe line L2 of the temporary pipe line L can be easily and quickly formed and can be laid in the building B with high efficiency. And cost can be reduced.
(2) Since the O-ring 23 seals between the pipe members 1, 2, 3, 5, 7 and the receiving ports 20, 20 'of the water shutoff valve 6 and the insertion ports 21, 21', The ring-shaped packing does not get caught in the pipe joint as in the temporary pipeline, and the sealing performance of the packing is not impaired, resulting in excellent sealing performance.
(3) The pipe members 1, 2, 3, 5, 7 and the receiving tubular portions 21, 21 'of the receiving ports 20, 20' of the water shutoff valve 6 are formed to have a large diameter, and the receiving tubular portions 21, 21'a are Since the inner peripheral edge portion is formed into a tapered surface 20, 20'b and the outer peripheral edge portion of the inserting cylindrical portion 21, 21 'is chamfered 21, 21'c, the insertion opening into the receiving opening 20, 20' The 21, 21 'can be easily and easily inserted and connected, and the connection work time can be shortened.
(4) The housing type pipe joint 4 is removed, and the pipe members 1, 2, 3, 5, 7 and the insertion ports 21 and 21 'of the water shutoff valve 6 are connected to other pipe members 1, 2, 3, 5, 7 and The pipe members 1, 2, 3, 5, 7 and the water shutoff valve 6 can be easily separated only by pulling out from the receiving ports 20, 20 'of the water shutoff valve 6, and the temporary pipe line L can be removed after use. The pipe members 1, 2, 3, 5, 7 and the water shutoff valve 6 are hardly damaged at the time of removal. As a result, the pipe members 1, 2, 3, 5, 7 And, the reuse rate of the water shutoff valve 6 is significantly improved.

  In the above embodiment, the circular pipe support fitting 24 of the locking means 22 is made openable and closable by the hinge 25, but in other embodiments, as shown in FIG. 19, the circular pipe support fitting is circular. 24 is a C-shaped band portion 24a which is formed by bending an elastically deformable band-shaped metal plate and is externally fitted to the small diameter portion of the receiving opening 20 or the insertion opening 21, and both ends of the band portion 24a. The pipe support fitting 24 may be provided with a pair of confronting tightening pieces 24b arranged in series, and the hinge 25 may be omitted.

  Further, in the above embodiment, the locking means 22 includes the metal ring 27, but in another embodiment, the ring 27 of the locking means 22 is omitted as shown in FIG. The through hole 24c formed in the fastening piece 24b of the support metal fitting 24 is formed to have a size such that the hook 19 or the rope of the safety belt is inserted and locked, and the tip end side of the fastening piece 24b of the pipe support metal fitting 24 is formed into a ring-shaped portion. Also good.

  Further, in the above embodiment, the pair of tightening pieces 24b of the pipe support fitting 24 of the locking means 22 is tightened by the tightening tool 26 composed of a bolt and a nut, but in other embodiments, it is illustrated. Although not provided, the tightening tool 26 may be omitted and the pair of tightening pieces 24b of the pipe support fitting 24 may be fixed to each other by welding.

  Further, in the above embodiment, the locking means 22 is composed of the pipe support fitting 24, the tightening tool 26 and the ring 27, but the locking means 22 is not limited to that according to the above embodiment. Instead, any shape and structure may be used as long as it has a ring or a ring-shaped portion to which the hook 19 of the safety belt or the cord is locked.

  For example, as shown in FIG. 21, the locking means 22 has a hook 19 or a cord of a safety belt inserted and locked in a part of the piping members 1, 2, 3, 5, 7, 14, 15, 16 and 17. The ring-shaped portion 36 having the through hole 36a formed therein may be integrally formed. The position where the ring-shaped portion 36 is formed may be any position of the piping members 1, 2, 3, 5, 7, 14, 15, 16, 17. Although not shown, a ring may be inserted and locked in the through hole 36a of the ring-shaped portion 36 of FIG. 21, and the hook 19 or the cord of the safety belt may be locked to this ring.

  Further, in the above-described embodiment, the housing-type pipe joint 4 has the locking means 22 including 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 pipe fitting 4 is not limited to that according to the above-described embodiment, and may be any ring or ring-shaped portion to which the hook 19 of the safety belt or the rope is locked. It may have any form and structure.

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

  Furthermore, in the above-described embodiment, the open ends of the pipe bodies 2a, 3a, 5a, 7a, 14a, 16a, 17a of the pipe members 2, 3, 5, 7, 14, 14, 16 and the pipe member 1 (temporary installation The receiving port 20 and the insertion port 21 are butt-fused W at the open end of the unit body 28 of the piping unit 1), but in other embodiments, the piping members 2, 3, 5, 7, 14, 16 are used. , 17 of the pipe main bodies 2a, 3a, 5a, 7a, 14a, 16a, 17a and the opening end of the unit main body 28 of the piping member 1 (temporary piping unit 1) are integrated with the receiving port 20 and the insertion port 21. It may be formed in.

  Further, in the above-described embodiment, the open ends of the pipe bodies 2a, 3a, 5a, 7a, 14a, 16a, 17a of the pipe members 2, 3, 5, 7, 7, 14, 16, 17 and the pipe member 1 (temporary installation The receiving ends 20 and 20 'and the insertion ports 21 and 21' are provided at the open end of the unit body 28 of the piping unit 1) and the open end of the water shutoff valve 6, respectively, but in other embodiments, As shown in FIG. 23, the opening ends of the pipe bodies 2a, 3a, 5a, 7a, 14a, 16a, 17a of the piping members 2, 3, 5, 7, 14, 16, 17 and the piping member 1 (the temporary piping unit 1 ) A cylindrical connecting portion 37 made of synthetic resin in which an annular flange portion 37a covered by the housing-type pipe joint 4 is formed on the outer peripheral surface at the open end portion of the unit main body 28 and the open end portion of the water shutoff valve 6. And the flange portion 37 of the tubular connecting portion 37 that is made to face each other. The ring-shaped packing 38 is covered with the ring-shaped collar 37a and the ring-shaped packing 38 are wrapped in the split housing-type pipe joint 4 and clamped to fix the pipe members 1, 2, 3, 5, 7, 14, You may make it connect 16 and 17 and the water shutoff valve 6 airtightly. The tubular connecting portion 37 may be connected to the open ends of the tube bodies 2a, 3a, 5a, 7a, 14a, 16a, 17a and the unit body 28 by butt fusion welding, or alternatively, the tube body 2a. , 3a, 5a, 7a, 14a, 16a, 17a, the unit body 28, and the opening end of the water stopcock 6 may be integrally formed.

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

1 is a temporary pipe unit 2 is a straight pipe 3 is cheese 4 is a housing type pipe joint 5 is an elbow 7 is an end cap 14 is an expansion pipe 15 is a flexible joint 16 is a reducer 17 is a conversion adapter 19 is a hook 20 is a receptacle 21 Insertion port 22 is a locking means 27 is a ring 28 is a unit body 35 is a locking member 36 is a ring-shaped portion 37 is a cylindrical connection portion B is a building L is a temporary pipeline

Claims (8)

  A pipe member that forms a temporary pipe line that is provided when performing renewal work or repair work on a water supply pipe line laid in a multi-storey building and that is connected by a split housing type pipe joint. The tubular member has a tubular body having at least two open ends, and an annular flange portion provided on each open end of the tubular body and covered with a housing-type pipe joint on an outer peripheral surface thereof. Of the pipe or the tubular insertion port or the tubular connection part and the pipe body, the tubular receiving port, the tubular insertion port or the tubular connection part, and is worn by the worker. A pipe member, comprising: a hook provided on a safety belt, and locking means for preventing falling that is detachably locked to a cord worn by an operator.   The pipe member, any one of a straight pipe, a cheese, an elbow, a telescopic pipe, a tubular flexible joint, a reducer, a tubular end cap, or a tubular conversion adapter, each of which has at least a locking means for preventing fall. The piping member according to claim 1, wherein the piping member is formed.   A unit main body formed by connecting a plurality of synthetic resin pipes by butt fusion welding to each other, and an annular ring provided on each opening end of the unit main body and covered with a housing-type pipe joint on the outer peripheral surface. Is provided in any one of the unit body, the cylindrical receiving port, the cylindrical insertion port or the cylindrical connecting part, and the cylindrical receiving port or the cylindrical inserting port or the cylindrical connecting part in which the collar portion is formed. , A temporary piping unit provided with a hook provided on a safety belt worn by the worker and a locking device for preventing fall that is removably locked to a cord worn by the worker The piping member according to claim 1, which is characterized in that.   The locking means includes at least a hook or a ring-shaped portion on which a hook provided on a safety belt worn by the worker or a cord worn by the worker is detachably locked. The piping member according to any one of claims 1 to 3, which is characterized. It is a pipe joint which connects the piping member in any one of Claims 1-4, Comprising: The said pipe joint is
A split annular housing composed of a pair of semi-circular housings that covers the ends of two piping members, and a coupling that rotatably couples the coupling pieces provided at one end of each of the pair of semi-circular housings. A pin and a bolt that is rotatably provided on a tightening piece provided on the other end of the one semicircular housing and that is inserted between a bifurcated tightening piece provided on the other end of the other semicircular housing; A tightening tool consisting of a nut that is screwed to the bolt and tightly locked in a bifurcated tightening piece in a surface contact state, and provided on the connecting pin or one of the semicircular housings, and is worn by an operator. It is composed of a housing-type pipe joint equipped with a hook provided on a safety belt and locking means for preventing fall that is detachably locked to a cord worn by the operator. A characteristic pipe joint.   The locking means includes at least a hook or a ring-shaped portion on which a hook provided on a safety belt worn by the worker or a cord worn by the worker is detachably locked. The pipe joint according to claim 5, which is characterized.   It is a temporary pipeline provided when renewing or repairing a water supply pipeline laid in a multi-story building, and the temporary pipeline is at least one of claims 1 to 4. And a pipe joint according to claim 5 or 6, and a temporary pipe line.   A method for constructing a temporary pipeline provided when performing renewal work or repair work on a water supply pipeline laid in a multi-storey building, wherein the pipe member according to any one of claims 1 to 4 is used. When connecting the pipe joint according to claim 5 or 6 in a vertical direction, the locking means provided on the pipe member or the locking means provided on the pipe joint is used for a safety belt worn by an operator. A method for constructing a temporary pipeline, characterized in that after hooking a hook provided and a cord worn by an operator, the piping members are connected to each other by a pipe joint in this state.