JPH0587141U - Single pipe pipe mounting base for installation of underground concrete scaffolds - Google Patents

Abstract

(57) [Summary] [Purpose] A single-pipe pipe is erected and fixed on a mounting base fitted and fixed to a concrete piece protruding from underground concrete without rocking. [Structure] A mounting base 3 fitted and fixed to a concrete piece 4 projecting from a rising surface 1a of an underground concrete 1 is slidably brought into contact with an outer peripheral wall 4a of the concrete piece 4 to be detachably fitted. The fitting wall 7 is provided on the outer peripheral surface of the upper plate 6 so as to have a reverse concave cross-section, and at the upper portion, a locking step portion 8 for locking the lower end edge of the single pipe 2 is formed. A holding cylinder 10 in which a lower inner peripheral wall surface of the single pipe 2 is slidably contacted above the latching step portion 8 and a fitting wall 9 which is removably fitted is provided on the upper plate of the fitting portion 7. It is formed by standing and fixing it in the central portion of 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a single pipe pipe mounting base for installing an underground concrete scaffold, which is used when constructing an upper slab on a lower slab constructed underground, for example.

[0002]

[Prior Art]

 Conventionally, when erected a single-pipe pipe for installing scaffolds in underground concrete, the single-pipe pipe is erected directly on the waste concrete on the underground concrete to remove the sleeve, or the single-pipe pipe is erected. The concrete product for this purpose was placed on the underground concrete, and the single pipe was erected on the concrete product.

[0003]

[Problems to be solved by the device]

 However, in the former one of the conventional means for erection of single pipes, in the former case, it is necessary to stand the single pipe pipe directly on the waste concrete on the underground concrete, and remove the sleeve to perform post-treatment. In the latter case, since the single pipes are simply installed upright on the concrete product placed on the underground concrete, if there are irregularities on the underground concrete, the single pipes will rock. There was a problem of being unstable.

The present invention is intended to provide a mounting base for a single pipe for installing an underground concrete scaffold for the purpose of solving the above conventional problems.

[0005]

[Means for Solving the Problems]

 According to the present invention, a concrete piece is projected on a ground surface of underground concrete, and a fitting wall is slidably contacted with the outer peripheral wall of the concrete piece so as to be detachably fitted. Is provided, and in the upper part, a locking step part for locking the lower end edge of the single pipe and a lower inner peripheral wall surface of the single pipe slidably engages above the locking step part and is detachably fitted. The above-mentioned problems are solved by adopting a means of vertically arranging the holding cylinder in which the fitting walls are continuously provided at the center of the upper plate of the fitting portion.

[0006]

[Action]

 According to the present invention having the above-mentioned structure, the mounting base on which the single pipe can be fitted at the upper end is fitted and fixed to the concrete piece projecting on the underground concrete without rocking.

[0007]

【Example】

 An example of the embodiment of the present invention will be described in detail with reference to the drawings. A mounting base 3 for mounting a single pipe 2 in a standing manner is fitted to a rising surface 1a of an underground concrete 1 that is cast on the ground. A concrete piece 4 to be fixedly fitted is projected.

The concrete piece 4 may have a circular cross section or a polygonal cross section, and may be projected on the launching surface 1a of the underground concrete 1 at the site construction, or the concrete piece 4 produced at the ready-mixed concrete factory is underground. It may be integrally provided with the concrete 1 and projected on the uphill surface 1 a.

The mounting base 3 fitted and fixed to the concrete piece 4 has a fitting wall 5 slidably attached to the outer peripheral wall 4 a of the concrete piece 4 and detachably fitted to the outer peripheral surface of the upper plate 6. The fitting portion 7 having a reverse concave cross-section is provided, and at the upper portion, a locking step portion 8 for locking the lower end edge of the single pipe pipe 2 and a single pipe above the locking step portion 8. A holding cylinder 10 in which a fitting wall 9 which is slidably in contact with a lower inner peripheral wall surface of the pipe 2 and is detachably fitted is provided in a standing manner at a central portion of an upper plate 6 of the fitting portion 7 to be formed. Has been done.

Next, the operation of the embodiment will be described. A concrete piece 4 is projectingly provided on a rising surface 1a of the underground concrete 1 cast on the ground G, and the fitting portion 7 of the mounting base 3 is capped and fixed on the concrete piece 4 and the single pipe 2 The lower portion of the single pipe pipe 2 is fitted to the fitting wall 9 above the holding cylinder 10 of the mounting base 3 and the lower end edge of the single pipe pipe 2 is hooked on the hooking step portion 8. Fixed on 3.

Then, a predetermined number of these mounting bases 3 are respectively fitted and fixed to concrete pieces 4 projecting on the rising surface 1a of the underground concrete 1, and a plurality of single pipes 2 are vertically erected to form work scaffolds. Once installed, it will be used as a work scaffold when installing, for example, the formwork of the upper slab built on the underground concrete 1.

After removing the work scaffold, the single pipe 2 can be removed from the mounting base 3 and the mounting base 3 can also be removed from the concrete piece 4 for reuse. After removing the mounting base 3, the concrete piece 4 is removed so as to be flush with the uphill surface 1a of the underground concrete 1.

[0013]

[Effect of the device]

 Since the present invention is as described above, the mounting base is removably fitted and fixed to the concrete piece integrally fixed to the underground concrete, and the single pipe is removably fitted on the mounting base. Since they are fixed together, the single pipe is fixed to the mounting base without swinging, and the work scaffold installed on the single pipe does not swing. Furthermore, since the mounting base can be reused by fitting and fixing it to other concrete pieces, the cost can be reduced, and the fitting base can be fitted and fixed to the concrete piece and the single pipe pipe to the mounting base. It is possible to achieve an excellent effect that the fitting and fixing of the above are easy and the workability is good.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a state in which a mounting base of a single pipe for installing an underground concrete scaffold of the present invention is mounted on a concrete piece.

FIG. 2 is an overall vertical cross-sectional view showing a state in which an attachment base of a single pipe for installing an underground concrete scaffold of the present invention is attached to a concrete piece.

[Explanation of symbols]

1 Underground concrete, 1a Upholstered surface of underground concrete, 2 Single pipe, 3 Mounting base,
4 concrete pieces, 5 mating walls, 6 top plate,
7 Fitting part, 8 Locking step part, 9 Fitting wall, 10
Holding tube.

Claims (1)

[Scope of utility model registration request] 1. A fitting piece in which a concrete piece is projected on a rising surface of underground concrete, and a fitting wall which slidably contacts the outer peripheral wall surface of the concrete piece and is detachably fitted is hung on the outer peripheral surface of the upper plate. A fitting portion is provided, and in the upper portion, a latching step portion for latching the lower end edge of the single pipe pipe, and a lower inner peripheral wall surface of the single pipe pipe slidingly and detachably fitted above the latching step portion. A base for mounting a single pipe for underground concrete scaffolding, which comprises a holding cylinder in which fitting mating walls are continuously provided and is vertically fixed to a central portion of an upper plate of the fitting part.