JPH0227267Y2 - - 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 the pipes must be extracted one by one to the sheath pipe, which requires a lot of time and effort. There was a problem that the work was time consuming and time consuming. In particular, when the sheath pipes constitute a straight piping route and a branch piping route, there is a problem in that it becomes extremely difficult to individually route the pipes to these routes.

This idea was made to solve the above problems, and it allows simultaneous extraction of multiple pipes into the shared pipe sheath pipe and smooth direction change of some pipes during extraction, thereby simplifying piping work. The purpose is to obtain a piping jig that can improve efficiency.

[Means for solving problems]

In the piping jig according to this invention, the jig attachment is attached to the jig body inserted into the sheath pipe through the hooking means, and the jig attachment is not separated from the jig body by the traction force in the linear direction and by the traction force in the branching direction. The jig main body and the jig attachment are each provided with a traction strip connecting portion and a pipe connecting shaft, and a cylindrical elastic body is provided on the pipe connecting shaft. Further, a tightening means is provided for compressing the cylindrical elastic body in the axial direction and releasing the compression.

[Effect]

In this invention, a cylindrical elastic body is inserted into 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 expands in the diametrical direction. and press-fit into the pipe. In this way, piping for piping is connected to each of the jig main body and the jig attachment. Therefore, a jig attachment is hooked and connected to the jig body, and a traction strip is connected to each traction strip connection portion of the jig body and the jig attachment, and these traction strips are inserted into the sheath pipe. When the jig main body and the jig attachment are kept in a locked state, each of the pipes connected thereto is simultaneously drawn in the sheath pipe in the linear direction. When the jig main body and the jig attachment reach the branch part of the sheath pipe by this extraction, the jig attachment is moved by the branch traction force exerted by the traction strip on the jig attachment side inserted into the branch piping route. The jig attachment is separated from the jig main body, and as a result, the jig attachment is changed direction to the branch piping route, and the pipe on the jig attachment side is branched and routed to that route.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the drawings.

First, in FIGS. 1 to 4 showing the first embodiment, reference numeral 1 denotes a piping jig main body, which consists of a base whose both ends are formed into a semicircular arc shape and which is inserted into the sheath pipe 16. There is.

A traction strip connecting portion 2 is provided at an intermediate portion on the front edge side of the jig main body 1.

In this embodiment, the traction strip connecting portion 2 is a hook 2a to which a traction strip 18 such as a piano wire is connected.
have.

A plurality of pipe connection shafts 3 and 4 for straight piping are provided on the rear edge side of the jig main body 1, each of which extends outward in parallel.

The pipe connecting shafts 3 and 4 are provided with a cylindrical elastic body 5 made of rubber or the like and its tightening means 6.

A jig attachment 8 is detachably and rotatably provided on one side of the jig main body 1 via a hooking means 7.

That is, on one side of the jig main body 1, there is an attachment storage chamber 9 that is open toward the circumferential side.
(See FIG. 2), and pin grooves 10 are provided in the upper and lower walls of the attachment storage chamber 9, which are cut from one side end toward the center of the jig body 1.

On the other hand, a locking pin 11 is detachably fitted into the pin groove 10 at the base end of the jig attachment 8.
is provided.

Therefore, the said latching means 7 in this embodiment
consists of the pin groove 10 on the jig main body 1 side and the locking pin 11 on the jig attachment 8 side.

The jig attachment 8 includes a traction strip connecting portion 12 having a hook 12a as in the case of the jig main body 1, a cylindrical elastic body 14, and its tightening means 1.
A pipe connecting shaft 13 for branch piping having a diameter of 5 is provided.

In this embodiment, the pipe connecting shafts 3, 4, 1
Numeral 3 consists of long bolts, and the tightening means 6, 15 are screwed onto the long bolts 3, 4, 13, and washers 6a,
It consists of a nut that holds the cylindrical elastic bodies 5, 14 from both sides via 15a.

Therefore, the cylindrical elastic bodies 5, 14 fitted into the long bolts 3, 4, 13 are compressed in the axial direction by the nuts 6, 15, and the compression is released.

The cylindrical elastic bodies 5 and 14 are formed to have an outer diameter that allows them to be individually inserted into each of the pipes P1 to P3 when they are in a natural state before being compressed.
It is designed so that it can be replaced with one having an outer diameter corresponding to each of the diameters 1 to P3.

For example, in the housing complex shown in FIG. 5, the sheath pipe 16 is used to supply water, hot water, gas, etc. from a pipe shaft 18 in a common area to a kitchen sink 19, a bathroom 20, a toilet 21, etc. in each dwelling unit. A plurality of pipes P1 to P3 leading to the appliance constitute a piping route for shared piping. Further, the sheath pipe joint 17 interposed between the sheath pipes 16 constitutes a branch piping route.

The sheath pipe joint 17 of this embodiment is made of a TY bent pipe as shown in FIG.

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

Natural cylindrical elastic bodies 5 and 14 are inserted into each terminal side of the pipes P1 to P3 to be extracted into the sheath pipe 16 with the sheath pipe joint 17 interposed therebetween. Next, when the nuts 6, 15 at the tips of the long bolts 3, 4, 13 are tightened, the cylindrical elastic bodies 5, 14 are compressed in the axial direction and expanded diametrically outward, thereby causing the pipes P1 to P3 to Pressurely engage. Thereby, the same number of pipes P1 to P3 are connected to each pipe connecting shaft 3, 4, 13 of the jig main body 1 and the jig attachment 8.

On the other hand, each traction strip connecting portion 2, 12 of the jig main body 1 and the jig attachment 8 has traction strips 18, 19.
connect individually. Next, the proximal end of the jig attachment 8 is fitted into the attachment storage chamber 9 of the jig main body 1, and the locking pin 11 of the jig attachment 8 is fitted into the pin groove 10 of the jig main body 1 and engaged. . Therefore, the traction strips 18 and 19 are attached to the sheath pipe 16.
When the jig main body 1 and the jig attachment 8 are inserted and pulled out, both the jig main body 1 and the jig attachment 8 are pulled in the pipe extraction direction within the sheath pipe 16. In this case, since only the traction force in the pipe linear drawing direction acts on the jig main body 1 and the jig attachment 8 before reaching the vicinity of the sheath pipe joint 17, so-called branch pipe route,
The jig main body 1 and the jig attachment 8 are pulled together in the pipe linear drawing direction while maintaining the state of a locking unit. When the jig main body 1 and the jig attachment 8 reach the vicinity of the sheath pipe joint 17, the traction strip 19 on the jig attachment 8 side is inserted into the branch piping route via the sheath pipe joint 17. As a result, a traction force acts on the jig attachment 8 toward the branch piping route. Due to this traction force, the jig attachment 8 is rotated around the latching pin 11 and pulled, so that the latching pin 11 comes out of the pin groove 10 of the jig main body 1.

The jig attachment 8 is then separated from the jig main body 1 and pulled into the branch piping route, whereby the pipe P3 connected to the jig attachment 8 is extracted to the branch piping route.

On the other hand, pipes P1 and P connected to the jig main body 1
2 is extracted as it is along the straight piping route.

A second embodiment is shown in FIGS. 6 to 8. In this embodiment, a pin hole 10A is provided in the upper wall 9a of the attachment storage chamber 9 in the jig main body 1, and a stopper member 22 is provided on the outer surface of the upper wall 9a. The stopper member 22 includes a stopper chamber 22a communicating with the pin hole 10A, and a stopper chamber 22a communicating with the pin hole 10A.
An open groove 10B that opens at a position opposite to the pin hole 10A is formed in the upper wall portion of a.

A spring pin 23 is inserted into the pin hole 10A so as to be movable up and down. The spring pin 23 has a head piece 23a at its upper end and a retaining piece 23b at its lower end.

The head piece 23a is an elongated plate piece having a width that allows it to pass through the open groove 10B and a length that does not allow it to pass through the open groove 10B, and is housed in the stopper chamber 22a.

The retaining piece 23b is housed within the attachment storage chamber 9.

The spring pin 23 is always urged in the upward direction by a spring 24 interposed below the head piece 23a in the stopper chamber 22a.

Therefore, the spring pin 23 is moved from the state in which the head piece 23a abuts against the upper wall portion of the stopper chamber 22a.
When rotated by 90 degrees, the spring 24
Due to the biasing force, the head piece 23a springs out from the opening groove 10B and rises, and when it rises, the retaining piece 23b abuts against the lower surface of the upper wall of the attachment storage chamber 9.

On the other hand, the jig attachment 8 is provided with a square hole 25 (see FIG. 8) into which the lower end of the spring pin 23 is removably inserted.

Next, the operation of the second embodiment will be explained. The jig attachment 8 is stored in the attachment storage chamber 9 of the jig main body 1 , and the lower end of the spring pin 23 is fitted into the square hole 25 and engaged, and the head piece 23 a of the spring pin 23 is pushed against the spring 24 . Then, it abuts against the inner surface of the upper wall of the stopper chamber 22a.

In this state, as in the case of the first embodiment, the jig main body 1 and the jig attachment 8 are pulled inside the sheath pipe 16 in the pipe linear drawing direction and reach the vicinity of the branch pipe passage, and in that direction. When a so-called branch traction force is applied to the jig attachment 8, the
It can be rotated by degrees.

At this time, the spring pin 23 and the head piece 23a rotate together with the jig attachment 8. For this reason, the head piece 23a is attached to the opening groove 10 by the spring 24.
The spring pin 23 is attached to the jig attachment 8 from B.
Get out of the square hole 25.

Therefore, the jig attachment 8 is disengaged from the spring pin 23, separated from the jig main body 1, and pulled into the branch piping route.

As a result, the pipe P3 connected to the jig attachment 8 is branched and drawn.

In the third embodiment shown in FIG. 9, a cam 26 is rotatably supported on an attachment 27.
By rotating in the direction of the arrow 6, the cylindrical elastic bodies 5 and 14 are compressed in the axial direction and the compression is released. Further, in this embodiment, the pipe connecting shafts 3, 4, and 13 are formed to be slidable inside the attachment 27, and the pipe connecting shafts 3, 4, and 13 are configured to be slidable inside the attachment 27.
When the pipes 4 and 13 are pulled, the pressing force of the cylindrical elastic bodies 5 and 14 against the insides of the pipes P1 to P3 increases.

In the fourth embodiment shown in FIG. 11, a cam 26 is rotatably supported on the pipe connecting shafts 3, 4, 13, and the cylindrical elastic bodies 5, 14 are compressed in the axial direction by the cam 26. And the compression is released.

In addition, in this embodiment, the pipe connecting shafts 3, 4,
13 into a tapered pin shape to form pipes P1 to P3.
The pressing force of the cylindrical elastic bodies 5, 14 against the inside of the cylindrical elastic bodies 5, 14 is increased.

[Effect of idea]

This idea is structured as above, so
It is possible to simultaneously extract a plurality of pipes into a sheath pipe for shared piping and to change the direction of some of the pipes at the time of extraction, thereby improving the efficiency of piping work.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a piping jig according to the first embodiment of this invention, and FIG. 2 is a partially cutaway front view of the same.
Fig. 3 is a side view of the same, Fig. 4 is an explanatory diagram of the operation of the piping jig during pipe extraction to the piping route, Fig. 5 is a piping system diagram, and Fig. 6 is the jig according to the second embodiment. 7 is a front view of the same, FIG. 8 is an exploded perspective view of the same, FIG. 9 is a partial plan view of the jig according to the third embodiment, FIG. 10 is a front view of the same, and FIG. It is a partial plan view of the jig of 4th Example. 1 is the jig main body, 2 and 12 are the traction strip connection parts,
3, 4, and 13 are pipe connecting shafts, 5 and 14 are cylindrical elastic bodies, 6 is a tightening means, 7 is a latching means, 8 is a jig attachment, and 16 is a sheath pipe.

Claims (1)

[Scope of utility model registration request] A jig main body is inserted into a sheath pipe for common piping through which a plurality of flexible pipes for fluid distribution are extracted, and is pulled in the extracting direction of the pipes, and the jig body is connected to the jig body via a hooking means. a jig attachment that is detachably and rotatably provided so that it does not separate from the jig body under a traction force in a linear direction and is movable and separated from the jig body under a traction force in a branching direction; A traction strip connecting portion provided on each of the tool attachments, a pipe connecting shaft provided on each of the jig body and the jig attachment and extending rearward, and a pipe connecting shaft that is fitted into these pipe connecting shafts and For piping, comprising: a cylindrical elastic body that is inserted into a pipe; and a tightening means that is provided on the pipe connecting shaft and compresses and decompresses the cylindrical elastic body in the axial direction. jig.