JPH084474Y2 - Manhole equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole device used for an underground oil storage tank of a gas station, an underground installation of measuring instruments and the like.

[0002]

2. Description of the Related Art Recently, manholes have been constructed using members such as a square protector, a similar square-shaped hook, and a similar square-shaped frame. The manhole is set in a hole dug in the ground with the square protector on the lower side, and a square hook with the square mouth frame attached to the protector is fitted and set aside, and the soil is placed below the outer periphery of the square protector. It is constructed by backfilling and placing concrete on top of the backfilled soil.

However, when the back of the square protector is filled with soil, it is often deformed by earth pressure, and even in that case,
The manhole must be constructed and used by fitting a square hook onto the deformed square protector. In this way, when several manholes are constructed side by side, the manholes will not be aligned and will be misaligned. (Refer to the broken line indicated by reference numeral 1 in FIG. 1.)

The present invention has been made in view of such a situation, and a prismatic protector can be provided by separating the square hook and the square mouth frame and using the oval mounting hole of the square hook and the bolts and nuts. Even if it is deformed, although the square hook is fitted into the square protector, the square shape allows the square mouth frame to slide in the horizontal plane due to the oval mounting hole of the hook, so that the manholes constructed side by side can be aligned in a straight line. The purpose is to

[0005]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the means made by the present invention is that a horizontal mounting side plate provided on a square hook fitted to the upper part of a square protector buried in the ground has an oval shape. It is said that a mounting hole will be opened, a horizontal mounting plate will be provided on the square mouth frame arranged on the upper part of the square hook, and a nut will be screwed into the oval mounting hole of the horizontal mounting side plate and the bolt penetrating the horizontal mounting plate. That is.

[0006]

Since the bolt penetrates the oval mounting hole, the bolt can be slid in the horizontal plane along the oval mounting hole before the nut screwed to the bolt is tightened. Therefore, even if the square protector is deformed, it is possible to slide the square mouth frame having the horizontal mounting plate through which the bolt penetrates in the horizontal plane along the oval mounting hole.

[0007]

Embodiments will be described with reference to the drawings. A square hook 2 to be fitted on the top of a square protector 1 (a square in the illustrated example) to be buried in the ground is formed in a similar shape to the square protector 1.
The square-shaped horizontal mounting side plates 3 project outward from the upper edges of two opposite sides of the rotary hook, and one oblong mounting hole 4 is opened in each of the mounting side plates to form a square mouth frame 5 in a horizontal plane. If you can slide it. (See FIGS. 3 and 5)

The oval mounting hole 4 may have an oval shape or a gourd shape as long as it has a plane shape capable of sliding the square mouth frame 5 in a horizontal plane. The square block 2 is
It is a member for fitting on the upper portion of the rectangular protector 1 so as to be slidable up and down and for adjusting the height of the manhole.

The horizontal mounting side plates 3 do not need to project outward on the upper edges of the four sides of the square hook 2 but project outward on the upper sides of the two opposite sides (see FIGS. 1, 2, and 4). , Fig. 5
Shown), one oval mounting hole 4 is bored in parallel, one bolt 7 is penetrated from above (shown in FIG. 1) or below (shown in FIG. 4, FIG. 6), and nut 8 is screwed. Configure to obtain

As shown in FIGS. 6 and 7, the horizontal mounting side plates 3 are provided so as to project inwardly at the upper edges of the two opposite sides of the square hook 2 and each have an oval mounting hole 4. The holes may be opened parallel to each other. The square mouth frame 5 is a C-shaped steel having the same inner and outer dimensions as the square hook 2 and the same planar shape.
A horizontal mounting plate 6 is constructed by opening one mounting hole 9 for allowing the bolt 7 to penetrate through the lower horizontal plate portion, and the bolt 7 is mounted on the mounting hole 9 as shown in FIG. 2 and FIG. The bolt 7 is penetrated from below, or the bolt 7 is penetrated from below as shown in FIGS. 4 and 6, and the bolt 8 is penetrated into the oval mounting hole 4 of the horizontal mounting side plate 3 so that the nut 8 is screwed.

With the above construction, even if the rectangular protector 1 is deformed by earth pressure or concrete pressure, the bolt 7
It becomes possible to slide the square mouth frame 5 having the horizontal mounting plate 6 penetrating therethrough into the horizontal plane along the oval mounting hole 4. Therefore, even if several manholes do not line up in a straight line and become so-called irregular (see the broken line of reference numeral 1 in FIG. 1), if the square mouth frame 5 is slid in a horizontal plane, it can be lined up in a straight line in plan view. It will be possible. (See the solid line in FIG. 1.)

In the figure, reference numeral 10 is a mounting lid detachably fixed to the square mouth frame 5, and 11 is an opening / closing lid provided on the mounting lid.

[0013]

[Effect of the Invention] Since the present invention is configured as described above,
Even if the square protector is deformed by earth pressure or concrete pressure, it becomes possible to slide the square mouth frame having the horizontal mounting plate through which the bolt penetrates into the horizontal plane along the oval mounting hole.

Therefore, even if several manholes are not aligned in a straight line and become irregular, they can be aligned in a straight line in plan view by sliding the square mouth frame in a horizontal plane.

[Brief description of drawings]

FIG. 1 is a plan view of several manholes aligned by a manhole device according to the present invention.

FIG. 2 is an enlarged vertical sectional view of a main part.

FIG. 3 is an enlarged cross-sectional plan view taken along line (III)-(III) of FIG.

FIG. 4 is a partially enlarged vertical sectional view of a main part showing another example in which the bolt penetrates upward.

FIG. 5 is a perspective view showing an example of a square hook with a horizontal mounting side plate protruding outward.

FIG. 6 is a partially enlarged vertical cross-sectional view of a main part using a square hook with horizontally mounted side plates protruding inward.

FIG. 7 is a perspective view showing another example of a square hook with horizontal mounting side plates protruding inward.

[Explanation of symbols]

 1 ... Square protector 2 ... Square hook 3 ... Horizontal mounting side plate 4 ... Oval mounting hole 5 ... Square mouth frame 6 ... Horizontal mounting plate 7 ... Bolt 8 ... Nut

Claims (1)

[Scope of utility model registration request] 1. An oblong mounting hole is opened in a horizontal mounting side plate provided on a rotary hook to be fitted on an upper portion of a rectangular protector to be buried in the ground, and the horizontal mount is horizontally mounted to a square mouth frame provided on the top of the rotary hook. A manhole device characterized in that a plate is provided, and a nut is screwed into a bolt penetrating the oblong mounting hole of the horizontal mounting side plate and the horizontal mounting plate.