JPS59381Y2 - water meter cabinet - Google Patents

Description

[Detailed explanation of the idea] Technical field of invention The present invention relates to a water meter housing for use in cold regions.

Technical background of the invention and its problems In cold regions, water meters need to be buried at least 1 meter underground to prevent them from freezing in the winter, and for this reason conventionally they were buried by stacking several hollow casings. However, in this case, if there is a constricted recess or a protrusion such as a rib on the casing due to freezing of moisture in the soil, there is a risk that it will be pushed upward and the stacked portion may come off.

Purpose of the invention In order to solve such problems, the present invention stacks blow-bottomed hollow cylindrical bodies with no constricted recesses and protrusions to form a laminate that expands downward as a whole, The object of the present invention is to provide a water meter housing which prevents the pushing blade from acting on the hollow cylindrical body when the soil freezes, and which further has an inner lid fitted into the laminated body to shut off outside air. .

Summary of the invention This invention is a stack of hollow cylindrical bodies that are formed by blow molding, expand downward, have a concave part on the outer circumferential surface, and have no part that protrudes beyond the lower outer circumferential surface, and the entire body faces downward. It is characterized by forming a laminate that expands, and having an inner lid fitted in the middle of this laminate to avoid the pushing blades of frozen soil and to block outside air.

Examples of ideas Next, embodiments of the present invention will be described with reference to the accompanying drawings.

1.2 is a blow-bottomed upper and lower hollow cylindrical body made of synthetic resin, both of which have a concave part on the outer circumferential surface and a step part 3 formed in the middle with no part protruding from the lower outer circumferential surface. It has an expanded shape at the bottom.

Further, the outer diameter of the lower end of the upper hollow cylindrical body 1 is made smaller than the outer diameter of the upper end of the lower hollow cylindrical body 2, and the entire stacked body 4 in which the upper and lower hollow cylindrical bodies 1 and 2 are stacked also faces downward. so that it has an expanded shape.

Further, a synthetic resin frame 5 is fitted and fixed to the upper opening edge of the upper hollow cylindrical body 1, and a synthetic resin outer cover 6 is fitted to this frame 5.

Further, the lower end opening edge is bent inward and further bent downward to form a retaining step portion 7.

Further, the lower hollow cylindrical body 2 has an upper opening edge bent inward to form an engaging edge 8 having an outer diameter larger than the outer diameter of the retaining step 7, and the inside of this engaging edge 8. The engagement step 7 of the upper hollow cylindrical body 1 is engaged with the engagement step 7, and the flexible synthetic resin inner lid 9 is engaged with the engagement step 7.

Furthermore, there are water pipe inlet ports 10 on both sides of the lower end of the hollow cylindrical body 2 below.
．． 10 is opened, and the lower end edge is a bent edge 11 bent inward.
form.

Note that a bottom plate 12 is provided at the bottom of the lower hollow cylindrical body 2.

Next, the operation of this embodiment will be explained.

The upper hollow cylindrical body 1 is stacked on the lower hollow cylindrical body 2 housing the water meter, and the inner lid 9 is engaged with the retaining step 7.

The inner lid 9 has a larger diameter than the opening of the upper hollow cylindrical body 1, but is flexible, so it is folded and inserted through the opening.

Next, the outer lid 6 is fitted into the upper opening.

In this way, the upper and lower hollow cylindrical bodies 1 and 2 are buried in the soil.

The outside air is doubly blocked by the outer cover 6 and the inner cover 9, and the water meter is housed at the bottom of the lower hollow cylindrical body 2 and is buried deep underground, so there is no risk of freezing.

In addition, when soil swells due to freezing of moisture in the ground, the upper and lower hollow cylindrical bodies 1 and 2 expand downward, and there is no concave part on the outer circumferential surface or a part that protrudes beyond the lower outer circumferential surface. The upper and lower hollow cylindrical bodies 1 and 2 are not lifted up because the soil pushing blades are not applied to the stepped portion 3 and other outer peripheral surfaces.

Further, since the stepped portion 3 maintains its strength against the lateral pressure at each position, the upper and lower hollow cylindrical bodies 1 and 2 are prevented from being deformed by the lateral pressure.

Effects of the invention According to the invention, the hollow cylindrical body on which the laminate is formed is expanded downward, and the four parts narrowed on the outer circumferential surface and the lower part protruding from the outer circumferential surface are eliminated, and the hollow cylinder is expanded downward. Since the cylindrical bodies are stacked to form a stacked body that expands downward, when buried underground, even if the moisture in the soil freezes and an uplift occurs in the soil, the hollow cylindrical body will not be damaged. Since there are no constricted parts or protruding parts on the outer circumferential surface and the stacked part of the laminate, on which the push-up blade in the soil acts, the hollow cylindrical body will not be pushed up, and the stacked part will separate and dirt will be trapped inside. There is no interference or incomplete stacking.

Furthermore, since it is a laminated body, the water meter can be buried deep underground to prevent freezing, and since the inner lid is fitted to the laminated body, it is possible to prevent outside air from entering and further improve the anti-freezing effect.

Furthermore, since the hollow cylindrical body is formed by blow molding, the manufacturing cost can be reduced, and since the hollow cylindrical body is made into a laminate, the mold can be small. It can also be miniaturized by fitting it into the hollow cylindrical body below.

[Brief explanation of drawings]

FIG. 1 is a side view of a water meter housing showing an example of the implementation of the present invention;
FIG. 2 is a longitudinal sectional side view of the same, and FIG. 3 is a plan view of the same. 1.2...Hollow cylindrical body, 4...Laminated body, 9...Inner lid.

Claims (1)

[Scope of utility model registration request] A laminate in which hollow cylindrical bodies formed by a blow bottom mold that expand downward and have a concave part on the outer circumferential surface and no part that protrudes beyond the lower outer circumferential surface are stacked and the entire body expands downward. , and an inner lid is fitted in the middle of this laminated body.