JPH0921172A - Drain gutter installation method and grating support metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute construction work with ease by placing concrete around a grating support metal fitting fixed with a set plate and pouring mortar into the metal fitting and thereby forming a water slope and loading a grating on the metal fitting. SOLUTION: After concrete is placed on a sill 1, while a base anchor 2 projectingly provided on the bottom of a plate 2b provided with a connecting nut 2a on the top is being placed with a spacing, the base anchor 2 is buried in a concrete foundation. Then, the lower end of a set bolt 3 is threaded with the connecting nut 2a, thereby adjusting the level of the set bolt 3a by moving the fixing nut 3b vertically and fastening the fixing but 3b and fixing the set plate 3a. Then, a grating support metal fitting 4 is fixed with the set plate 3a. After concrete O is placed around the metal fitting 4, mortar M is poured into the metal fitting 4, thereby forming a water slope M1. Furthermore, a grating G is loaded on a grating locking area 4a1 of the grating support metal fitting 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage ditch installation method for implementing a side ditch of a road or a drainage ditch of a building, and a grating support fitting for supporting and fixing a grating.

[0002]

2. Description of the Related Art In the conventional construction method, a steel material H such as a C type rope is
They should be placed back to back and sized appropriately, and the upper and lower parts should be temporarily fixed by welding with a rebar, etc., and then installed. After placing concrete, the upper rebar I
Remove the parts and finish the welding of the removed part with sander, and finish the water distribution in the groove inside J with mortar K, and then inside the groove J
After finishing the above, since the reinforcement welding was performed on the inside J of the groove with the rebar rod L such as a reinforcing bar, there were many work steps, and it took 2 times and 3 times. Also, in level adjustment, if you adjust the level with a camber (tapered wood piece) N etc. and adjust the left and right positions, the level will change again, so you have to adjust the two at the same time, which was a very difficult task.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to construct a drainage groove easily and easily and to reliably support and fix a grating and a drainage groove installation method. It is to provide metal fittings.

[0004]

[Means for Solving the Problems] As means for solving the above-mentioned object, as a drainage ditch installation method, first, a base anchor is embedded in a concrete foundation, and a set bolt provided with a set plate is screwed on the base anchor. Adjust the level of the set plate and fix the grating support bracket on the set plate. After that, concrete is poured and cured around the grating support fitting, mortar is put in the grating support tool to form a water distribution, and the grating is placed on the grating support fitting. In addition, in the grating support fitting, the flat plate is bent and the two support plates having the grating locking portions formed above are connected symmetrically at the connecting portions, and fixed to the lower side of the set plate. Section is provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drainage ditch installation method of the present invention will be described below with reference to FIGS. (1) About 30 base anchors 2 in which concrete is placed in the soil 1 of a gas station or the like, and anchors 2C are projected on the lower surface of the plate 2b having the connecting nut 2a on the upper surface.
It is embedded in a concrete foundation while being planted at a pitch of 00 mm. (2) Support bolt 3C of set bolt 3 including set plate 3a, fixing nut 3b, and support bolt 3C
The lower end of the set nut is screwed into the connecting nut 2a, the fixing nuts 3b are moved up and down to adjust the level of the set plate 3a, and the fixing nuts 3b are tightened again before the set plate 3
a is fixed. (3), the fixing portion 4 is provided on the lower surface of the supporting plates 4a, 4a facing each other.
B is fixed with a nut 4c, and the stopper 4 is inserted into the insertion port 4d.
Assemble the grating support fitting 4 by inserting e and connecting. (4) After the assembled grating support fitting 4 is centered on the set plate 3a, it is fixed by welding. (5) After the concrete is cast and troweled on the periphery to finish the trowel, the mortar M is put in the grating supporting metal fitting 4 and the water distribution M1 is formed from above with a trowel or the like. (6), the grating G on the grating locking portion 4a1
Is placed.

Next, the grating support fitting 4 will be described in detail with reference to FIGS. 3 and 4. Grating support bracket 4
Is a planar U-shaped insertion port 4d provided inside a support plate 4a formed by bending a flat plate and forming a front U-shaped grating locking portion 4a1 on the upper side. In addition to providing the portion 4f, a flat plate-shaped fixing portion 4b for fixing the set plate 3a on the bottom surface is integrally fixed by a bolt 4C1 and a nut 4C.

The width dimension 5 of the grating support fitting 4 may be set freely according to the size of the grating G. Further, the means for fixing the grating support fitting 4 on the set plate 3a is not limited to welding, but bolts or the like may be set arbitrarily.

[0008]

INDUSTRIAL APPLICABILITY The present invention has an effect that a drainage groove can be easily and easily installed without requiring skill, and that the grating can be surely and quickly supported and fixed.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a drainage groove installation method according to an embodiment of the present invention is installed.

FIG. 2 is a plan view of a main part of a drainage ditch installation method according to an embodiment of the present invention.

FIG. 3 is a front view of a grating support fitting according to an embodiment of the present invention.

FIG. 4 is a plan view of a grating support fitting according to an embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Earth floor 2 Base anchor 3 Set bolt 4 Grating support bracket

Claims (2)

[Claims] 1. First, a base anchor is embedded in a concrete foundation. Next, a set bolt provided with a set plate is screwed on the base anchor. Next, adjust the level of the set plate and fix the grating support bracket on the set plate. After that, the concrete is cast around the grating supporting metal fittings, the mortar is put in the grating supporting metal fittings to form a water distribution, and the grating is placed on the grating supporting metal fittings. 2. A flat plate is bent to connect two support plates, each having a grating locking portion formed above, to each other symmetrically at a connecting portion, and a fixing portion for fixing the set plate downward on the set plate. Grating support metal fittings characterized by being provided.