JPH0247342Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a piping jig used, for example, when extracting pipes for various purposes to sheath pipes of piping routes to each dwelling unit in an apartment building.

[Conventional technology]

In apartment buildings, piping is installed for various purposes such as water supply, hot water supply, and gas, but the piping is carried out by extracting it into a sheath pipe for common piping, and when extracting it, a piping jig is used. used.

Conventional piping jigs of this type have a simple structure in which they are individually set using installation tools for each pipe for various purposes.

[Problem that the invention attempts to solve]

Conventional piping jigs with such a simple structure must be set for each pipe, so each pipe must be extracted one by one to the sheath pipe, which requires a lot of time and effort. There was a problem in that the work was time-consuming and took a lot of time.

This idea was made to solve the above problems, and the purpose was to create a piping jig that can simultaneously extract multiple piping pipes into a common sheath pipe, thereby improving the efficiency of piping work. shall be.

[Means for solving problems]

The piping jig according to this invention allows the proximal ends of the traction side movable member and the pipe set side movable member to which the traction strip is connected to the roller shaft of the guide roller that rolls in the sheath pipe to be able to bend and rotate. A plurality of pipe connecting shaft rods are provided in parallel and spaced apart on the movable member on the pipe set side, and a cylindrical elastic body and a fastener for compressing the cylindrical elastic body in the axial direction and releasing the compression are provided on the shaft rods. It is equipped with attachment means.

[Effect]

In this device, a cylindrical elastic body is inserted inside the end side of the pipe to be extracted into the sheath pipe, and when this cylindrical elastic body is tightened in the axial direction by a tightening means, the cylindrical elastic body is diametrically outwardly It expands and press-fits into the pipe. In this way, the same number of pipes are connected to each pipe connecting shaft of the pipe set side movable member of the guide roller. Therefore, when a traction strip is connected to the movable member on the traction side of the guide roller and this traction strip is inserted into the sheath tube and pulled out, the guide roller is pulled by the traction strip and rolls inside the sheath tube. By doing so, a plurality of pipes connected to the pipe set side movable member of the guide roller are simultaneously extracted into the sheath pipe.

In this case, even if the sheath pipe is bent in the middle, the guide roller rolls within the sheath pipe as described above, and the traction side movable member and the pipe set side movable member each move around the roller axis of the guide roller. Since the pipe is bent and movable in the pipe drawing direction, the pipe drawing can be carried out smoothly.

〔Example〕

An embodiment of this invention will be described below based on the drawings.

Figure 1 is a plan view of the piping jig according to this invention.
Fig. 2 is a side view of the same, Fig. 3 A and B are explanatory diagrams of the same jig when setting the pipe, Fig. 4 is an explanatory diagram of the operation of the piping jig when extracting the pipe to the piping route, and Fig. 5 is the piping It is a system diagram.

In the figure, reference numeral 1 denotes a guide roller which is the main body of the piping jig, and is rotated with an outer diameter set to allow it to roll inside the sheath pipe 10 and the sheath pipe joint 11 interposed between the sheath pipes 10. It has a roller shaft 2 in the center.

The base end portions of a traction side movable member 3 and a pipe set side movable member 4 extending in opposite directions are rotatably connected to the roller shaft 2.

The traction side movable member 3 is a traction strip material 1 such as a piano wire.
2 is connected to the hook 5. On the other hand, the pipe set side movable member 4 is provided with a plurality of pipe connecting rods 6, each of which extends outward in parallel.

The pipe connecting shaft 6 is provided with a cylindrical elastic body 7 made of rubber or the like and its tightening means 8.

In this embodiment, the pipe connecting shaft 6 is made of a long bolt, and the tightening means 8 is a nut that is screwed onto the pipe connecting shaft 6 and holds the cylindrical elastic body 7 from both sides via washers 8a. ing.

Therefore, the cylindrical elastic body 7 fitted into the pipe connecting shaft 6 is compressed in the axial direction by the nut 8, and the compression is released.

The cylindrical elastic body 7 is formed to have an outer diameter that allows it to be individually inserted into each of the pipes P1 to P3 when it is in its natural state before being compressed.
It is designed so that it can be replaced with one with an outer diameter corresponding to each diameter.

The sheath pipe 10 and the sheath pipe joint 11 are connected, for example, in an apartment building shown in FIG. 5, from a pipe shaft 13 in a common area to a kitchen sink 1 in each dwelling unit.
4. Water supply installed in bathroom 15, toilet 16, etc.
Multiple pipes P1 to P leading to appliances such as hot water and gas
3 constitutes a piping route for the shared piping to be extracted.

The sheath pipe joint 11 of this embodiment is made of a 90° bent pipe, as shown in FIG.

Next, the operation of the above embodiment will be explained.

A natural cylindrical elastic body 7 is inserted into each end side of the pipes P1 to P3 to be extracted into the sheath pipe 10 with the sheath pipe joint 11 interposed therebetween (the state shown in FIG. 3A). In this state, as described above, the natural cylindrical elastic body 7 is in a disengaged state in which it is not in pressure contact with the inner circumferential surfaces of the pipes P1 to P3, and the pipe set side movable member 4 and the cylindrical elastic body are in a disengaged state. The nut 8 located between the pipes 7 and 7 protrudes to the outside at the open end of each of the pipes P1 to P3, and can be tightened from the outside with a screwdriver. Therefore, when the nut 8 in the externally protruding state is tightened, the cylindrical elastic body 7 is compressed in the axial direction and expanded diametrically outward, so that the cylindrical elastic body 7 is
As shown in FIG. B, it is press-fitted and engaged with the inner circumferential surface of each of the pipes P1 to P3. As a result, the guide roller 1
The same number of pipes P1 to P3 are connected to each pipe connecting shaft 6 of the pipe set side movable member 4 in . On the other hand, a traction strip 12 is connected to the traction side movable member 3 of the guide roller 1 . Therefore, when the traction strip 12 is inserted into the sheath tube 10 and pulled out, the guide roller 1 is pulled by the traction strip 12 and rolls inside the sheath tube 10, so that the pipe set side of the guide roller 1 is pulled out. A plurality of pipes P1 to P3 connected to the movable member 4 are simultaneously drawn into the sheath tube 10.

During this extraction, the guide roller 1 is connected to the sheath tube,
When passing through the joint 11, the traction side movable member 3 and the pipe set side movable member 4 each bend and rotate in the pipe drawing direction about the roller shaft 2 of the guide roller 1, so that the pipes P1 to P3 are sheathed. It can be drawn smoothly even in a bent pipe line by the pipe joint 11.

[Effect of idea]

This invention is constructed as described above, in which a guide roller having a movable member on the traction side and a movable member on the pipe set side is connected to the movable member on the traction side and pulled by a traction strip inserted into a sheath pipe. By rolling in the sheath tube under tension, a plurality of pipes connected to the pipe set side movable member can be simultaneously extracted.

As described above, the pulling side movable member and the pipe set side movable member are bendable and rotatable, so that the extraction can be carried out smoothly even if the sheath pipe is bent in the middle.

In addition, by inserting the cylindrical elastic body fitted into the pipe connecting side shaft rod of the pipe set side movable member into the pipe and compressing the cylindrical elastic body in the axial direction with the tightening means, the cylindrical elastic body Since it expands diametrically outward and press-fits into the pipe, connection of the pipe to the movable member on the pipe set side can be accomplished easily and skillfully.

Therefore, according to this invention, piping work can be carried out smoothly and efficiently.

[Brief explanation of the drawing]

Figure 1 is a plan view of the piping jig according to this invention.
Fig. 2 is a side view of the same, Fig. 3 A and B are explanatory diagrams of the same jig when setting the pipe, Fig. 4 is an explanatory diagram of the operation of the piping jig when extracting the pipe to the piping route, and Fig. 5 is the piping It is a system diagram. In the figure, 1 is a guide roller, 2 is a roller shaft, 3 is a pulling side movable member, 4 is a pipe set movable member, 6 is a shaft rod for connecting pipes, 7 is a cylindrical elastic body,
8 is a tightening means.

Claims (1)

[Scope of utility model registration request] A guide roller for rolling inside a sheath pipe for shared piping through which a plurality of flexible fluid distribution pipes are extracted, and a traction strip such as a piano wire connected to the roller shaft of the guide roller. a traction-side movable member connected to the traction-side movable member; a pipe set-side member connected to the roller shaft so as to be bendable and rotatable and extending to the opposite side of the traction-side movable member; A plurality of pipe connecting shafts extending in parallel, a cylindrical elastic body that is fitted onto these shafts and inserted into the pipe, and a cylindrical elastic body provided on the shaft and connecting the cylindrical elastic body A piping jig comprising a tightening means for compressing and releasing compression in the axial direction.