JPS62202133A - Water meter box having heat pipe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a water meter box that is buried deep underground, and when replacing the water meter in the box, there is no need to dig the water meter box. The present invention relates to a water meter box having a replaceable heat pipe.

(Prior art) Conventionally, in order to prevent water dispensers from freezing in cold regions, water dispensers are placed in a water dispenser box with a lid, a frame, and in some cases a bottom plate, etc., and placed in the ground at a predetermined depth. A hole was dug and buried in the water to prevent it from freezing, and the water was maintained by the geothermal heat at the bottom of the water tank. The temperature inside the water meter box was lower than the surrounding underground temperature, and it also varied depending on the region and geology.

The depth at which a water meter should be placed in a box is usually determined for each region. In particular, in cold regions, the burial depth reaches 70 to 120 α, and these areas are spread over a fairly wide range. If the box is too deep, with a depth of 70 mm or more, during the water meter replacement work that is carried out regularly every 8 years, after digging out a large amount of surrounding earth and sand and taking out the water meter box, Replacing the water in this hole was a very time-consuming and complicated process that involved repeating the same process many times as when the water meter and its box were first installed. Therefore, this work was generally carried out at all installation locations in each administrative district, and the cost was enormous every year.

(Means for solving the problem) In order to solve the above-mentioned drawbacks, the present invention provides a water meter stand 60 to 70 mm below the ground level in the water meter box, and installs the water meter on this. This water meter box has a heat pipe, and is further characterized in that a part of the heat pipe is buried below, and is heated by underground geothermal heat.

Generally, a water meter box is buried so that its top is approximately at the same height as the ground surface. In cold regions, the depth often reaches 70α or more as mentioned above. Therefore, for example, if a water meter installed at a depth of 1 m or more is installed at a depth of 60 αM, the temperature will rise by more than 40 α even though it is in the same box, and the temperature will decrease because it is that much closer to the ground surface.
Heat pipes are used to compensate for this. A portion of the heat pipe is buried to maintain an appropriate temperature inside the box.

The overall length of the heat pipe is generally influenced by the depth at which the water meter box is buried and the relationship with geothermal heat. The higher the geothermal heat, the shorter the time will be. Incidentally, currently, a water meter box generally has an inner lid to keep it warm.

(Function) As described above, in the present invention, the water meter, which was conventionally installed deep underground, is installed together with the water meter stand at a distance of 60 to 70 α from the ground surface. Replacement work, etc. can be easily carried out while remaining on the ground surface, saving labor.

In addition, if the water meter is located close to the ground surface, and the ambient temperature decreases, by burying a part of the heat pipe there, the heat transfer will occur. It can then be heated to raise the temperature and replenish. The gas cooled in the water meter box above the heat pipe liquefies and falls, and is heated again by geothermal heat. These movements occur repeatedly within the heat pipe. Therefore, the inside of the water meter box is always maintained at a temperature sufficient to keep the water meter etc. warm, thereby preventing them from freezing.

(Example) Embodiments of the present invention will be described with reference to the drawings.

FIRST EMBODIMENT FIGS. 1 to 4 show the first embodiment, and FIG. 1 is a perspective view thereof, and FIG. 2 is a longitudinal cross-sectional view taken along line A- in FIG. 1. 3 is a longitudinal sectional view taken along the line B-B' in FIG. 1, and FIG. 4 is a plan view of FIG. 1 with the lid and inner lid removed.

In the drawing, each frame 1 of the water meter box has a rectangular shape.
It is stacked in 4 tiers, and each tier is approximately 30cW1 high, so it is approximately 120c underground! It is buried at a depth of n.

There is a bottom plate 2 at the bottom, a lid 3 at the top, and an inner lid 4 approximately in the middle of the second frame 1.

This inner lid 4 has a cold protection material on the lower surface. Incidentally, the lowest stage of the frame 1, that is, the one above the bottom plate 2, has water pipe insertion holes 5 on both sides downward. An overhang 10 located above the third stage frame 1, that is, at a depth of approximately 60 crR from the ground surface.
A water meter stand 6 is placed on both sides of the container 1. A water meter 7 and a pulp 8 connected to the side by a water pipe 10 are attached to this water meter stand 6.The water meter stand 6 is a single plate-shaped body. However, it may be other than this, and its size may be within a range that does not affect the heat retention of the water meter 7 and the like.

However, it is not necessary to make the extra large size, as long as it is large enough to hold the water meter 7 and possibly the valve 8 together.

A heat pipe insertion hole 2a is provided in the center of the bottom plate 2.

As shown in FIGS. 2 to 4, the heat pipe 9 has a heat radiator 9a at its upper end. The heat pipe 9 is buried in the ground at a predetermined depth from the bottom plate 2 through the heat pipe insertion hole 2a. The heat pipe 9 is installed in a manner sufficient to maintain heat. Although the heat radiator 9a is not necessarily required, the amount of heat radiation increases if it is provided. The length of the heat pipe 9 depends on and is determined by the temperature inside the water meter box when it is installed and the geothermal heat of the place where it is buried. Generally, if the difference between the temperature required for freezing prevention and the temperature inside the water meter box is large, the length of the heat pipe 9 will be large.

However, it also depends on the distribution of geothermal heat.

The water pipe 10 passes through the water pipe insertion holes 5t on both sides of the bottom of the frame 1, intersects in the middle and rises, and at the water meter 6, it passes along the diagonal line of the frame 1 as shown in FIG. It is located on the top and is connected to the pulp 8 and water meter 7. This keeps the water meter 7 etc. warm and prevents them from freezing.

In this embodiment, a bottom plate 2 is provided at the bottom of the water meter box, but this is not necessarily necessary. In the water pipe insertion hole 5,
Usually, a mudflow prevention plate is in contact with it.

Second Embodiment FIGS. 5 and 6 show the second embodiment. FIG. 5 is a perspective view thereof, and FIG. 6 is a C-C in FIG. 5.
FIG.

The difference between this embodiment and the first embodiment is the frame 1.

That is, in the first embodiment, the water meter box has frames 1t-4 stacked, but in the second embodiment, there is only one frame 1. The two are different in this respect.

Although not directly related to this embodiment, the state in which the water pipes 10 intersect is different from the first embodiment.

(Effects of the Invention) The water meter box having the heat pipe according to the present invention has a bottom that is above the ground.1) 70c! Even if the water meter stand 6 is buried deep, such as in a place that cannot be reached by more than By installing the water meter box, not only these installation works but also the regular replacement work of the water meter 7, which is carried out every 8 years, can be done after digging out the water meter box, which is buried deep underground. There's no need. Therefore, since the water meter 7, etc. are easily accessible from the ground, their installation and replacement work is extremely simple and easy compared to conventional methods, making it efficient and economical, and saving a huge amount of construction costs every year. You can.

In addition, the water meter stand 6 only needs to have a small plate-like body, and the structure is extremely simple and inexpensive, so no or in some cases, no major design changes are required in the frame 1 of the conventional water meter box. When using the zero bottom plate 2 which does not require a heat pipe insertion hole 2a, the heat pipe insertion hole 2a is small, so the cost required for this is also negligible.

Furthermore, regular meter readings, meter readings, etc., such as monthly, can be easily seen because the water meter 7 is located near the ground surface, and can be carried out much more easily and quickly than in the past, resulting in great savings.

Furthermore, the heat pipe 9, which is partially buried underground and used for heating, has extremely high thermal efficiency, simple structure, and durability, and is therefore extremely economical. Although two embodiments of the present invention have been described above, the present invention is of course not limited to those shown in these embodiments, and may be modified as appropriate without departing from the gist of the present invention. It is possible to make modifications.

[Brief explanation of drawings]

1 to 4 show the first embodiment, FIG. 1 is a perspective view thereof, FIG. 2 is a vertical sectional view taken along the line A- in FIG. 1, and FIG. 1 is a vertical cross-sectional view taken along line B-B' in FIG. 1, FIG. 4 is a plan view of FIG. A second embodiment is shown, and FIG. 5 is a perspective view thereof.
FIG. 6 is a longitudinal sectional view taken along line cc' in FIG. 5. DESCRIPTION OF SYMBOLS 1... Frame body, 101... Overhang part, 2... Bottom plate, 2a... Heat pipe insertion hole, 3... Lid body, 4... Inner lid, 5... Water pipe Insertion hole, 6... Water meter stand, 7... Water meter, 8... Pulp, 9...
・Heat pipe, 9a...Radiator, 10...Water pipe. Figure 1 Figure 2 Figure 5 Figure 6 Procedural Amendment (Spontaneous) April 4, 1985 Director General of the Patent Office 1, Indication of Case Patent filed on February 27, 1986 Patent Application No. 44490 of 1986 3, Relationship with the amended case Patent applicant postal code 047 Telephone (Main) 0134-22-
51614, date of amendment order Voluntary

Claims (4)

[Claims] (1) Approximately 60cm to 70cm above the ground in the water meter box
1. A water meter box having a heat pipe, characterized in that a water meter stand is provided below, and a portion of the heat pipe is buried below. (2) A water meter box having a heat pipe as set forth in claim 1, wherein the water meter stand is provided in a part of an overhang within the water meter box. (3) A water meter box having a heat pipe according to claim 1, wherein the water meter stand is a plate-shaped body. (4) A water meter box having a heat pipe as set forth in claim 1, wherein the inner lid is placed slightly above the water meter.