JPH0215107Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is designed to stand up one or more flexible conduits in parallel depending on the purpose, which are installed horizontally in slabs, etc. in concrete buildings. The present invention relates to a holder for parallel upright portions for flexible electrical conduits, which is used in such cases.

(Prior Art) Conventionally, flexible electrical conduits P through which indoor electrical wiring and telephone lines in concrete buildings such as apartment complexes and office buildings are inserted are laid horizontally within slabs F, as shown in Fig. 7. It is connected to the built-in box B by standing up in the vertical direction directly below the built-in box B to which indoor electrical wiring and telephone lines are connected.

As shown in Fig. 8, in concrete buildings, strut reinforcement Q is arranged horizontally in the slab in a grid pattern, and strut reinforcement S is arranged vertically in the wall or column. The flexible electrical conduit P is piped horizontally along the strut reinforcement Q, curved vertically at a predetermined position, and its raised portion P' is tied and held along the strut reinforcement S. ing. In such piping, the raised part P' of the flexible conduit P is aligned with the support beam S, so it is necessary to hold the raised part P' in the position shown by the chain line in Figure 8. However, the rising portion P' cannot be held and the rising position is limited. In addition, the embedding box is not always buried in a position close to the strut reinforcement S, and even if it is necessary to bury it so that it is located between adjacent strut reinforcement S, it is necessary to bury the embedment box directly under the embedment box. I couldn't raise it. Therefore, the relative positions of the embedded box and the raised portion are shifted and do not coincide with the knock-out holes of the embedded box. Therefore, as shown in Fig. 7, the rising part P' of the flexible conduit P is curved into an S-shape and connected to the embedded box B. Generally, the installation height H of the embedded box B is set to the height H of the slab F. It is set around 200mm from the top surface,
Not only is S-shaped bending within this short startup distance an extremely difficult task, but there is also the risk that the S-shaped bent flexible conduit tube may buckle and collapse, making subsequent wiring impossible. be. Furthermore, since the support beams Q constituting the slab are only arranged in a lattice pattern that forms grids of approximately 200 mm square, the spaces within the grids of the support beams Q are free. The flexible conduit P could not be stood up, and there was a drawback that piping work for the flexible conduit was restricted.

As this kind of conduit support,
There was a flexible pipe rising support device described in 89675 and a piping end fixing device described in Japanese Utility Model Application Publication No. 102880/1989.

In the former, a support piece in the form of a leg is bent and erected on a fixed piece that contacts and is fixed to a temporary fixing surface, and a flexible tube that is to be supported in an upright manner is inserted through the support piece. The support tube is fixed in the direction of the standing leg, and there is no disclosure of how to stand up multiple flexible pipes in parallel.If you try to stand up another flexible pipe in parallel at a piping construction site, a new separate pipe will be created. It is necessary to fix the support tube to the fixed piece via the support piece, which not only makes the work difficult but also increases the number of parts and the size of the support device. The problem has been that it is difficult to handle because it tends to get in the way of the reinforcing bars and the fixing positions of the support device are limited.

The latter consists of a fixture that has a flat part for floor mounting and a sleeve for supporting the base of the rising pipe, and a protective tube that can be attached and detached to the upper end of the sleeve. Although it is possible to start up the two pipes separately or hold and start up the three pipes at once, there is no disclosure of starting up the two pipes in parallel and close to each other. Since the number of protective tubes is required, the number of parts increases and the fixing device becomes large, which tends to get in the way of the support beams arranged in the slab, and the fixing positions of the fixing device are limited. In addition, when holding three pipes at once and setting them up, the three pipes are set up in parallel, but each pipe is not supported reliably, and the fixing device becomes large, and the two pipes are set up in parallel. As in the case of fixing pipes, the fixing position of the fixing device is limited, and when trying to set up two or three pipes at the construction site, the fixing device is different in shape from one for two pipes to one for three pipes. However, the problem was that it required replacement work, and the workability was not good.

In view of these drawbacks, the present invention securely holds one or more flexible conduits one by one at a piping construction site by using one sleeve, depending on the application. The object of the present invention is to provide a holder for parallel standing portions for flexible conduits that can be stood up in parallel.

(Structure of the invention) The basic structure of the invention consists of a holding part that holds the rising part of the flexible conduit, and a holding part that supports the holding part and is provided at a position that does not interfere with the bending of the flexible conduit. It has a holder main body that has a supporting leg that is attached to the support leg and a fixing part provided at the lower part of the supporting leg, and a fitting part that is fitted onto the outer part of the holder main body, and the holding part is attached to the outside of the fitting part. It consists of a flexible conduit held in the holding part of the fixture body and a sleeve having a holding part for holding the flexible conduit piped in parallel, and the fitting part of the sleeve is connected to the holding part of the fixture body. By fitting outward, the flexible electrical conduit can be held by the holding part of the sleeve in parallel with the flexible electrical conduit held by the holding part of the holder main body. Hereinafter, embodiments of the present invention will be described based on the drawings.

First Embodiment In FIG. 1, this embodiment is directly fixed to a concrete temporary frame, and a holding device 1 consists of a holder body 2 and a sleeve 3.

In the holder main body device 2, support legs 5 extend downward so as to face the lower part of a cylindrical holding part 4 into which the flexible electrical conduit P is inserted without interfering with the bending of the flexible electrical conduit P. A fixing part 6 is provided at the lower end of the support leg 5 facing outward, a through hole 7 is bored in the fixing part 6, and the support leg 5 is fixed to the temporary concrete frame by a nail inserted into the through hole 7. There is. A protrusion 8 is provided on the lower outer circumferential surface of the holding portion 4 to prevent the sleeve 3 from rotating and falling.

On the other hand, the sleeve 3 has flexible conduit pipes P on both sides of a cylindrical fitting part 9 that is fitted onto the holding part 4 of the holder main body 2.
A cylindrical holding part 10 through which the cylindrical part 9 is inserted is integrally formed in parallel with the cylindrical part 9. An engagement recess 11 cut out from the lower part is provided in the lower part of the fitting part 9, and the sleeve 3 is prevented from rotating by fitting the protrusion 8 of the holder main body 2 into the engagement recess 11. At the same time, the sleeve 3 is prevented from slipping down.

In order to erect the flexible conduit P installed horizontally in the slab using the above-mentioned holding device 1, the holder main body 2 is fixed at a predetermined position on the concrete temporary frame, and the flexible conduit P is inserted into the holding part 4 and raised, and the sleeve 3 is inserted into the raised part P'.
By fitting the fitting part 9 outwardly and moving it downward, the fitting part 9 is fitted externally to the holding part 4, and
The protrusion 8 of the holding part 4 is fitted into the engagement recess 11 of the fitting part 9.

A rising portion P' of the flexible electrical conduit P, which is piped in parallel with the flexible electrical conduit P located at the center, is inserted into the holding portion 10 of the sleeve 3.

Although the inner diameter of the holding part 10 of the sleeve 3 in the figure is larger than the outer diameter of the flexible conduit P, it is also possible to make the inner diameter of the holding part 10 equal to the outer diameter of the flexible conduit P. Good too.

Further, the protrusion 8 and the fitting recess 11 are not provided, and the holding part 4 and the fitting part 9 are strongly fitted, or the holding part 4
The sleeve 3 may be prevented from falling by forming the holding part 4 into a tapered shape so that the outer diameter of the lower part thereof is larger than the diameter of the fitting part 9, or by tilting the supporting legs 5 outward.

Second Embodiment In FIGS. 2 and 3, this embodiment shows a holding device 15 that is indirectly fixed to the concrete temporary frame.
It consists of a holder main body 16, a sleeve 17, and a fixture 18.

The holder main body 16 has support legs 20 extending downwardly at the lower part of a cylindrical holding part 19 into which the flexible electrical conduit P is inserted so as not to hinder the bending of the flexible electrical conduit P. A fixed part 22 having an insertion hole 21 is provided at the lower end of the support leg 20, and a set screw 23 is screwed into the outer periphery of the fixed part 22. On the lower outer periphery of the holding portion 19, protrusions 24 are protruded in parallel at predetermined intervals.

The sleeve 17 is integrally connected to the outside of a cylindrical fitting part 25 that is fitted onto the holder 19 of the holder main body 16 with a rib 26, and has a cylindrical holder 27 through which the flexible conduit P is inserted. It is formed in parallel with the fitting part 25. The rib 26 is provided at the lower part of the circumferential surface of the fitting part 25.
An engaging recess 28 is provided with both sides facing the lower edge cut out from the lower edge, and the protrusion 24 of the holder body 16 can fit into the engaging recess 28.

The fixture 18 has a steel rod 30 fixed to a base 29, and the steel bar 30 is inserted into the insertion hole 21 of the holder main body 16 and fixed with a set screw 23.
A through hole 31 is bored in the pedestal 29, and the through hole 31
It is fixed to the temporary concrete frame with nails inserted into the frame.

Flexible electrical conduit P installed horizontally inside the slab
To stand up using the above-mentioned holding device 15,
The fixture 18 is fixed at a predetermined position on the temporary concrete frame, the steel rod 30 is inserted into the insertion hole 21 of the holder main body 16, and the holder main body 16 is fixed to the fixture 18 at a desired height position. The holder body 16 is fixed to the fixture 18 with a set screw 23. Flexible conduit P
is raised upward and inserted into the holding part 19, and the fitting part 25 of the sleeve 17 is externally fitted into the raised part P' and moved downward, thereby fitting the fitting part 25 into the holding part 19. At the same time, the protrusion 24 of the holding part 19 is fitted into the engagement recess 28 of the fitting part 25. The engagement between the protrusion 24 and the engagement recess 28 prevents the sleeve 17 from rotating and sliding downward.

Third Embodiment In FIG. 4, this embodiment is a holding device 34 that is fixed to a support rod reinforced horizontally in a slab, and is made up of a holding device body 35, a sleeve 36, and a support rod 37. Become.

The holder main body 35 has a support leg 40 that opposes the lower part of a holder 39 having a semicircular cross section and has an opening 33 on the side surface into which the flexible conduit P is inserted, and prevents the flexible conduit P from bending. It is extended so that its support legs 4
A fixing part 42 having a horizontal insertion hole 41 is formed on the outer side of the lower part. A protrusion 43 is provided on the lower outer peripheral surface of the holding portion 39 to prevent the sleeve 36 from rotating and falling.

On the other hand, the sleeve 36 is integrally connected with ribs 45 on both sides of a cylindrical fitting part 44 that is externally fitted into the holding part 39 of the holder main body 35, and has an opening on the side surface for fitting the flexible conduit P. The cross section with 46 is U
The fitting part 44 has a holding part 47 in the shape of a letter or a semicircle.
is installed in parallel. An engagement recess 48 into which the protrusion 43 of the holder main body 35 fits is provided on the lower circumferential surface of the engagement part 44 .

Next, the support rod 37 is inserted into the insertion hole 41 at the bottom of the holder main body 35, and one or both ends are U-shaped.
It has a hooking portion 49 bent into a letter shape, and is adapted to be hooked to support beam reinforcement 50 arranged in the horizontal direction. When the hooking portion 49 of the support rod 37 is not hooked to the support rod 50, the support rod 37 is tied to the support rod 50 with a bind wire or the like 51.

Flexible electrical conduit P installed horizontally inside the slab
To stand up using the above-mentioned holding device 34,
The support rod 37 assembled to the holder main body 35 is hooked or tied to the horizontal support rod 50, and the holder main body 35 is moved to a desired position on the support rod 37. The flexible electrical conduit P is raised upward under the holder main body 35 and fitted into the holder 39 from the opening 38, and the fitting part 44 of the sleeve 36 is inserted into the raised part P'.
By fitting outward and moving downward, the fitting part 44 is fitted outwardly into the holding part 39, and the protrusion 43 of the holding part 39 is fitted into the engagement recess 48 of the fitting part 44. Rotation and sliding of the projection 43 and the engagement recess 48 are prevented. The rising portion P' of the flexible conduit P is also fitted into the holding portion 47 of the sleeve 36 through the opening 46, and a binding wire is placed on the outside of the holding portion 47 to prevent the rising portion P from escaping from the opening 46. Wrap a band, etc. The binding wire, band, etc. are wound on the lower side of the rib 45.

Note that, as in the first embodiment, the sleeve 36 may be prevented from falling without providing the protrusion 43 and the engagement recess 48.

Fourth Embodiment In FIG. 5, this holding device 53 consists of a holding tool body 54 and a sleeve 55.

The holder main body 54 has support legs 5 having the structure shown in any of the first to third embodiments described above at the lower part of a cylindrical holder 56 through which the flexible conduit P is inserted.
7 is provided, and a protrusion 58 is provided protruding from the lower outer circumferential surface of the holding portion 56 .

On the other hand, the sleeve 55 has a cylindrical fitting part 59 that is externally fitted onto the holding part 56 of the holder main body 54, and a protrusion 60 having a T-shaped cross section protrudes from one side of the outer circumferential surface, and a protrusion 60 having a T-shaped cross section protrudes from the other side of the outer circumferential surface. A fitting groove 61 is provided in . The fitting groove 61 is closed at the lower end to prevent the protrusion fitted into the fitting groove 61 from escaping downward. The sleeve 55 is fitted into the lower outer periphery of the fitting portion 59 by the protrusion of the holder main body 54.
An engaging recess 62 is provided that prevents the handle from rotating and from slipping down. The holding part 63 connected to the fitting part 59 is formed in a cylindrical shape through which a flexible electrical conduit can be inserted, and the protrusion 60 of the fitting part 59 is fitted into one side of the outer peripheral surface. Fitting groove 64
A protrusion 65 similar to the protrusion 60 is provided on the opposite side of the outer periphery.

In this embodiment, an arbitrary number of holding parts 63 can be connected to the outside of the fitting part 59. The upright portion of the flexible electrical conduit is inserted into the holding portion 56 of the holder main body 54, and the fitting portion 59 of the sleeve 55 is externally fitted into the holding portion 56. The fitting part 59 and the holding part 63 are connected by the protrusions 60, 65 and the fitting grooves 61, 64, and the holding parts 63 are connected by the protruding part 6.
5 and a fitting groove 64.

Note that, as in the first embodiment, the sleeve 55 may be prevented from falling without providing the protrusion 58 and the engagement recess 62.

In the first to fourth embodiments described above, the case where the flexible conduit P is stood up vertically has been explained, but the flexible conduit P is tilted at a predetermined angle as shown by the chain line in FIG. When it is necessary to connect to the side surface of the slab, the holding portion of the above-mentioned holding device may be inclined at a predetermined angle with respect to the slab surface.

(Effects of the invention) The present invention includes a holder main body having a holding part and a support leg, a cylindrical fitting part externally fitted to the holding part of the holder main body, and a cylindrical fitting part provided in parallel with the fitting part, and a sleeve that has a holding part into which the flexible conduit is inserted, so one or more flexible conduit can be inserted into the holding part of the holder body at the piping construction site depending on the application. By simply fitting the
Since each holding portion of the sleeve can hold a separate flexible electrical conduit, the flexible electrical conduits can be reliably held one by one and stood up in parallel.

In addition, when setting up two or more flexible conduits, only one sleeve is needed in addition to the holder itself, making the structure more compact and preventing interference with the support beams arranged in the slab. It is easy to handle, and workability can be improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the first embodiment of the present invention, Fig. 2 is a perspective view of the second embodiment, Fig. 3 is an enlarged sectional view of the main part, Fig. 4 is a perspective view of the third embodiment, FIG. 5 is a perspective view of the fourth embodiment, FIG. 6 is a sectional view showing the state of piping, FIG. 7 is a sectional view showing the state of piping according to a conventional example, and FIG. 8 is a perspective view. Explanation of symbols of main parts, 1, 15, 34, 53
... Holding device, 2, 16, 35, 54 ... Holder body, 3, 17, 36, 55 ... Sleeve, 4,
19, 39, 56...holding section, 5, 20, 40,
57... Support leg, 9, 25, 44, 59... Fitting part, 10, 27, 47, 63... Holding part.

Claims (1)

[Scope of claim for utility model registration] Holding part 4 that holds the rising part of the flexible conduit P
and a support leg 5 that supports the holding portion 4 and is fixed within the slab F and is provided at a position that does not interfere with the bending of the flexible conduit P; A cylindrical fitting part 9 that is externally fitted onto the holding part 4 and is provided in parallel with the fitting part 9,
and a sleeve 3 having a holding part 10 through which the flexible conduit P is inserted, and by fitting the fitting part 9 of the sleeve 3 onto the holding part 4 of the holder main body 2, the holder main body 2 can be held. A parallel standing part holder for a flexible electrical conduit, in which a holding part 10 of a sleeve 3 holds another flexible electrical conduit P in parallel with a flexible electrical conduit P held in a part 4.