JP3980309B2 - Water meter box - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a water meter box in which a small-diameter water meter is stored and buried in the ground, and can be replaced, inspected, repaired or stopped on the ground surface, and freezing and freezing can be prevented.
[0002]
[Prior art]
In order to prevent freezing accidents in winter, laying waterworks in cold regions is buried deep underground, so water meters and stopcocks are also buried deep underground directly to protect water meters, etc. It was embedded in a protective box made of concrete or the like.
However, such small-bore water meters need to be water-stopped when they are regularly replaced by the measuring method, when repairs and inspections are required due to problems with the water meter and the stop cock, or when branch pipes rupture, break or leak. In such a case, it was necessary to excavate and replace, inspect and repair or to stop the water each time, and it was forced to work for a long time with enormous expenses.
[0003]
In view of such a problem, an appropriate number of small holes for inflow of geothermal heat are provided in the side wall of the bottom plate of the meter body box body in which the convex bottom plate is continuously provided at the bottom of the side wall of the cylindrical box, and the water meter is provided on the top plate of the bottom plate. In addition, a coil pipe with a water meter and a stop cock attached is provided in the box body, and the upper end of the rope, such as a rope bound at the bottom of the water meter, is connected to the box body. The water meter box connected to the upper part of the inner wall was invented, and its contents are disclosed in Japanese Patent Publication No. 63-38507.
[0004]
Thus, according to the invention of the prior application, freezing prevention and replacement of water meter and stop cock, inspection and repair, or water stop measures can be easily performed without going through excavation work, leading to wide use in large quantities. However, new problems have been raised. In other words, with the wide use, the soil soil conditions to be buried are significantly different, and the climatic difference between the buried areas is extremely large, and this causes a large expansion earth pressure due to freezing of buried soil to the buried water container box. As a result, a lifting force toward the ground surface acts on the water meter box, and a frost heaving phenomenon in which the tip of the buried water meter box protrudes or rises on the ground surface is caused. The container box is based on a so-called addition of an upper closure lid placed on the upper end of the water meter box. Therefore, when embedding, the upper end of the water meter box is grounded so that earth and sand do not fall into the water meter box. In addition to the fact that the upper part of the upper obstruction lid that is buried as much as the surface is raised on the ground surface during normal times, it is not only a great obstacle to walking and traffic due to freezing. Inhibit That result and will also result in being forced also again of drilling buried by the degree of on 且凍 has become a big problem, especially in urban and urbanized areas.
[0005]
In addition, the water tank box of the invention of the prior application is an elastic expansion / contraction for storing the water meter and the water stop cock that are embedded and stored to the ground surface for replacement, inspection and repair, water stoppage, etc. In order to maintain the function, a configuration is adopted in which a polyethylene pipe is usually screwed to form a coil pipe, and its end is connected to a water meter or a stop cock at a substantially right angle with a connecting pipe. The polyethylene pipe forming the coil pipe has a relatively high rigidity. If the radius of curvature of the coil pipe is made small, not only a large pulling force is required at the time of extension, but also the pipe is connected to a water meter or a stop cock at a substantially right angle. There is a risk that excessive stress will be applied to the connecting pipe to cause deformation or breakage of the connecting pipe. On the other hand, increasing the radius of curvature of the coil pipe will make it easy to extend, Large caliber Thickness may against Ku 且 expansion earth pressure also requires a multi 且高 cost. For this reason, the coil pipe is screwed with a screw diameter approximately equal to the length of the water meter and the stop cock connected to the rigid and straight line, and the inner diameter in which these are accommodated. Thus, a water meter box is formed.
[0006]
Thus, in the long-term embedding, the expansion earth pressure accompanying freezing of the soil is added to the water meter box, so the water meter box that does not reach freezing also deforms or due to a significant temperature difference between the ground surface and the ground. Due to the difference in expansion coefficient between the water meter box and the water meter and the stop cock, or due to the accumulation of dust and bacteria on the inner wall surface of the water meter box, The so-called rigid and rigid straight edges of the faucet and the connecting pipe are extremely narrowed or joined, and in particular, as shown in FIG. When the connection pipe C is connected to the edge of the coil pipe D at a substantially right angle, the contact resistance or frictional resistance between the strong connection pipe C and the inner wall E of the water meter box is remarkably increased. The helical curvature of the coiled pipe D, the water meter A, the stop cock B, and the ream The curvature of the pipe C does not match, so when using a water meter box that matches the diameter of the coil pipe D, it must be used with a remarkably large diameter. In the case of using the plug B and the length of the connecting pipe C, the coil pipe D must be compressed and stored in the water meter box. Some problems have also been pointed out that cause serious hindrance to lifting and storage.
[0007]
Further, in the invention of the prior application, a convex bottom plate is provided so that it can be attached to the spiral hollow portion of the coil pipe when the coil pipe is stored as a means for preventing freezing, and a small hole for inflow of geothermal heat is appropriately formed on the side wall of the bottom plate. It is established by using several geothermal heats, but the depth at which the water meter is buried is about 60 to 200 cm depending on the conditions of the buried place, and the temporary geothermal (geothermal) is used. However, the inflow of geothermal heat is only a small hole in the convex bottom plate, and it is a very small part from the contact area between the water meter box and the soil, so it does not lead to effective use of the ground temperature, but rather the temperature is low if the embedding depth is shallow It has also been pointed out that the soil temperature is transmitted from the outer peripheral surface of the water meter box to the water meter box by conduction and radiation, and further through the upper closed lid, and is transmitted into the water meter box by the action of radiation.
[0008]
The inventors have conducted extensive research in view of such problems, and as a result, in order to prevent deformation against the expanded soil pressure due to soil freezing, the storage tube has a cylindrical shape, and the lifting force accompanying the addition of expanded soil pressure. Can be slid and moved on the outer peripheral surface of the storage tube, and the soil temperature lowered from the outer peripheral surface of the storage tube having a large contact area with the buried soil is propagated into the water box by conduction or radiation. In order to prevent this, it is possible to prevent freezing in the water meter box and to prevent freezing of the water meter box by inserting an insertion holder made of a heat insulating material, and to arrange the spiral coil and the water meter. By changing the connection angle with the stop cock, it was found that the raising and lowering operations of the water meter, the stop cock and the spiral coil can be performed extremely efficiently, and the present invention has been achieved.
[0009]
[Problems to be solved by the invention]
That is, the present invention can prevent the freezing and freezing of the water meter and the stop cock embedded in the buried soil and the area where the climatic conditions are different. An object of the present invention is to provide a water meter box that can be easily moved up and down for replacement, inspection and repair, or for stopping water.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a cylindrical storage tube that stores a water meter connected to a water supply pipe and a stop cock connected to the water meter in a state where it is buried in the ground, An upper closing lid for closing the upper end of the storage pipe, a lower closing lid for closing the lower end of the storage pipe, and a horizontal support for supporting the water meter and the stop cock in the storage pipe so as to be movable up and down. And a water supply pipe and a supply pipe connected to the water faucet form a spiral coil, and the horizontal water support is pulled up to lift the water meter and the water stop. In the water meter box configured to draw the faucet upward from the lower part of the storage pipe, a mounting ring that contacts and connects both the storage pipe and the upper closing lid, the storage pipe, and the upper part formed by the heat insulating material that absorbs have expanded earth pressure covering the outer peripheral surface of the closing lid A through-holding body, and a heat-insulating lid capable of closely moving up and down with the inner wall of the storage tube respectively disposed below the water meter side of the horizontal support and near the lower side of the upper closing lid. A watering machine box is provided. Here, the mounting ring has a fitting edge that receives the entire upper closing lid on the upper side, a fitting edge that covers and fits the upper end of the storage tube on the lower side, and the upper closing position at an inner intermediate position thereof. It has a fastening edge which contacts the lower end of a lid and the upper end of the above-mentioned storage pipe, It is characterized by the above-mentioned.
And the water supply pipe forming the spiral coil, the water stop pipe, the feed pipe forming the spiral coil and the water meter, the water supply pipe and an extended edge line of the supply pipe, The crossing angle between the water stop cock and the edge extension line of the water meter is connected by a connecting pipe bent so as to be in the range of 50 to 85 degrees.
Further, the insertion holding body is capable of moving up and down between the storage pipe and the outer peripheral surface of the mounting ring when a lifting force is applied by applying an expansion earth pressure accompanying freezing of the buried soil. It is characterized by having.
[0011]
[Action]
Thereby, the metering water box which concerns on this invention has the following effects. That is, since the storage tube has a cylindrical shape, it is difficult to be structurally deformed even when an expansion earth pressure accompanying freezing of the soil at the time of embedding is applied. Further, since the entire outer side surface of the storage tube is inserted through the storage tube and the insertion holder is made of a hollow and heat-insulating material, the expansion of the buried soil pressure accompanying the freezing of the buried soil Even when a lifting force is applied, the insertion holding body lifts and slides on the outer side surface of the storage tube, the additional force applied to the storage tube itself is reduced, and the storage tube itself is prevented from freezing. Furthermore, since the large contact portion between the water meter box and the buried soil is inserted with a hollow insertion holder made of a heat insulating material, conduction and radiation of the soil freezing temperature close to the ground surface, which is particularly at low temperature, is achieved. It is blocked by the insertion holder, and the temperature inside the water meter box is prevented from being lowered. In addition, a heat insulating lid that is in close contact with the inner wall of the storage pipe is arranged in the storage pipe above the water meter and the stop cock and in the vicinity of the upper closure lid, so that a low temperature is conducted through the upper closure lid. Even if it is propagated by radiation, it is blocked by a heat insulating lid, and the water meter and the stop cock are prevented from freezing.
Further, the end of the water meter and the stop cock and the end of the water supply pipe and the discharge pipe forming the spiral coil are connected to the end extension line of the water meter and the stop cock, and the water supply pipe and the water supply pipe. Are connected by connecting pipes bent so that the crossing angle with the edge extension line is in the range of 50 to 85 degrees. Since the connecting pipe connected to the inner wall of the storage tube 1 is not joined to the inner wall surface of the storage tube 1, the contact resistance and frictional resistance with the inner wall surface of the storage tube 1 are lost even during the lifting operation, thereby facilitating the lifting operation. Thus, the elastic extension force of the spiral coil, the load of the spiral coil, and the like are dispersed and added to the entire bent portion of the connection tube so as to eliminate the damage to the connection tube.
[0012]
In the water meter box according to the present invention, the storage pipe is formed by connecting a plurality of divided cylindrical pipes. The storage tube has a cylindrical portion having a diameter larger than the diameter of the upper end of the storage tube from the lower end of the storage tube to a predetermined position, and a constant gradient from the predetermined position to the upper end of the storage tube. And a conical portion that narrows.
As a result, when freezing is intense and large earth pressure is applied, the divided upper part of the storage tube slides upward and protrudes to the ground surface with the lifting force, preventing the entire water meter box from freezing. In addition, the protrusions are naturally restored due to the decrease in earth pressure accompanying thawing in the spring, or restored by slight pressure.
In addition, when the diameter of the appropriate length position is made larger than the upper diameter of the storage pipe to form the required gradient and the lower diameter is formed with the same diameter, it is relatively close to the ground surface where the expansion earth pressure is large. In addition, the diameter of the storage pipe is small and the additional resistance of the expansion earth pressure is reduced, and when the expansion earth pressure is applied, the soil slides up and down the slope, and the frost heave prevention action of the storage pipe is exerted, thereby suppressing the frost heave. Become. In the present invention, the storage pipe is formed with an inner diameter approximating the length of the rigid and linear water meter and the stop cock.
[0013]
【Example】
The embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional explanatory view of the present invention. The storage tube 1 maintains a stable embedded state for a long time and expands earth pressure accompanying soil freezing. Since the structure and strength that can withstand the addition of steel are required, the cylindrical shape is used, and the material used is a steel tube material and the synthetic resin material is polyethylene, polyester, or polycarbonate. A molded one is used.
Further, the diameter, length, or material to be used for the storage tube 1 is determined in consideration of the buried soil, soil conditions, and climatic conditions, and is practically prevented from freezing, but the length is usually short. About 60 cm long, about 200 cm long is used, and the diameter of the spiral coil 5 stored in the storage tube 1 is sufficiently elastic, and resistance to running water is reduced. Although a large diameter is desired from the top, it is generally about 30 due to the fact that when the diameter is large, it is not only multi-ply and expensive, but also a safety problem in pedestrians and traffic during burial. A thing of thirty to about 40 cm is convenient. Of course, the thickness of the storage tube 1 varies depending on the caliber and length and the material used, but when the polyethylene resin is used as the material used with a caliber of 30 cm and a length of 150 cm, about 20 mm is desirable.
[0014]
An upper closing lid 2 is attached to the upper end 1A of the storage tube 1 via a mounting ring 3, and a lower closing lid 4 is attached to the lower end 1B of the storage tube 1 so that the storage tube 1 is closed. Kept in a state.
The upper closing lid 2 is, as an embodiment in the invention of the prior application, a so-called addition that places and closes the tip 1A of the storage tube 1, and in the method by the addition, the support edge 2A of the upper closing lid 2 is attached to the storage tube 1. The upper end 1A of the storage tube 1 is naturally separated from the ground surface in order to prevent the earth and sand from collapsing into the storage tube 1 when working on the ground surface during embedding. The upper closed lid 2 placed on the same level is in a state where the upper side of the upper cover lid 2 is raised above the ground surface.
[0015]
Therefore, in the present invention, the main purpose is to prevent the so-called frost heaving of the storage tube 1 from the ground surface by the lifting force of the expansion earth pressure accompanying the soil freezing. Even if it occurs, the bulge of the upper closing lid 2 is weighted and becomes a big problem.
For this reason, the present invention solves this problem by attaching the upper closing lid 2 and the tip 1 </ b> A of the storage tube 1 via the mounting ring 3. That is, the mounting ring 3 has a hollow ring shape as shown in FIG. 2, and a fitting edge 3A having a diameter and a depth so that the entire upper closing lid 2 is fitted therein is formed on the upper side thereof. And a fastening edge 3B for fastening the supporting edge 2A of the upper closing lid 2 fitted toward the center inner side is formed, and the tip 1A of the storage tube 1 is encased in the lower side thereof The formed fitting edge 3C is integrally formed, and the hollow portion 3D formed at the center of the fastening edge 3B is naturally formed equal to the inner diameter of the storage tube 1. And the front-end | tip 1A of the storage tube 1 covered and fitted in the lower fitting edge 3C is naturally fixed at the fastening edge 3B, and the storage tube and the upper closing lid 2 are attached.
[0016]
What should be noted when forming the mounting ring 3 is that in the present invention, in order to prevent frosting up, the insertion holding body 10 is inserted through the entire outer side surface of the storage tube 1, and the lifting force due to the expansion earth pressure is inserted through the insertion ring 3. Since the technical means for converting into the holding body 10 is adopted, the insertion holding body 10 is inserted through the entire storage tube 1 and the mounting ring 3, and the insertion holding body 10 is easily attached to the storage tube 1 and the mounting by the lifting force. It is desirable to taper 3E the tip of the fitting edge 3C of the mounting ring 3 inward so that the outer peripheral surface of the ring 3 can slide up and down.
[0017]
On the other hand, a lower closing lid 4 is attached to the lower end 1B of the storage tube 1. The lower closing lid 4 is not particularly restricted and is closed so that earth and sand etc. do not enter the storage tube 1. For example, there is no problem in practical use. Specifically, as shown in the drawing, a fitting convex portion 4B that can be fitted into the lower end 1B of the storage tube 1 is formed on the upper side of the substrate 4A, or a fitting fixing edge (see FIG. (Not shown) etc. are proposed.
[0018]
Thus, the upper closing lid 2 is attached to the upper end 1A of the storage tube 1 via the mounting ring 3, and the lower end 1B is attached to the lower closing lid 4 and closed, and the end of the storage tube 1 is closed. The water supply pipe 5A and the supply pipe 5B extended to the outer side of the storage pipe 1 are twisted together to form an elastic coil 5 in order to maintain the elastic expansion and contraction function. The water pipe 5A and the edge of the water supply pipe 5B are connected to the end of the water faucet 6 and the stop cock 7 which are rigidly connected integrally and linearly with an appropriate connecting pipe 8. Further, the water meter 6 and the stop cock 7 connected to the rigid, integral, and straight line are appropriately adjusted so as to be lifted and lowered by a horizontal support 9 held in the storage tube 1 for the lifting operation. Supported and stored.
In such a case, what is important is that the edges of the water supply pipe 5A and the supply pipe 5B forming the spiral coil 5 and the edges of the strong, integral and linear water meter 6 and the stop cock 7 are provided. As shown in FIG. 3, the edge extension line AA of the water supply pipe 5A and the supply pipe 5B, and the edge extension line BB line of the water meter 6 and the stop cock 7 as shown in FIG. Is connected to the connecting tube 8 bent so that the crossing angle is in the range of 50 to 85 degrees, preferably 60 to 75 degrees, so that the spiral diameter of the spiral coil 5 can be reduced. A connecting pipe 8 that is screwed to fit to the inner diameter and connected to the edge of the rigid and integral linear water meter 6 and stop cock 7 is temporarily joined to the inner wall surface of the storage tube 1. Even in this case, the contact resistance and the frictional resistance are remarkably reduced because of the contact at the bent surface.
[0019]
An insertion holding body 10 made of a hollow and heat-insulating material through which the storage tube 1 and the mounting ring 3 can be inserted is inserted into the entire outer side surface of the storage tube 1 and the mounting ring 3 or an appropriate length range. ing.
This insertion holding body 10 has such a sliding property that it can be moved up and down between the storage tube 1 and the outer peripheral surface of the mounting ring 3 when a lifting force is applied by applying an expansion earth pressure accompanying freezing of the buried soil. Insulation that can prevent the low temperature due to freezing of the buried soil from being propagated into the storage tube 1 by conduction or radiation from the storage tube 1, and toughness that can resist the added expansion earth pressure Therefore, as the material used, rigid foamed polyethylene, rigid foamed polyurethane, foamed ABS, or the like is preferable, and those formed into a hollow cylindrical shape using these materials can be mentioned. If a thing of about 50 mm is employ | adopted, expansion earth pressure will be absorbed and a lifting force will be suppressed remarkably, and frost freezing will also be prevented.
[0020]
FIG. 4 is a cross-sectional explanatory view in which the storage tube 1 is divided and used in a connected manner. When the storage tube 1 is divided and connected, the ground surface or surface layer that is severely frozen has a large expansion earth pressure. Since it decreases significantly with depth, it is advantageous from the standpoint of preventing freezing and deformation of the water meter box by sliding the storage tube 1 in response to the addition of expansion earth pressure. by. Accordingly, the length of the divided storage tube 1 is preferably about 1/3 to 1/2 of the total length of the storage tube 1 from its tip 1A.
[0021]
In the present invention, the hollow insertion holder 10 made of a heat-insulating material is inserted into the entire outer side surface of the storage tube 1 and the mounting ring 3 or in an appropriate length range, thereby preventing frost freezing due to soil freezing and significantly reducing the temperature. It is possible to block the low temperature of the ground surface or the surface soil close to the ground surface from being propagated into the storage tube 1 due to conduction or radiation, but the upper closure lid 2 is naturally exposed to a low temperature. The low temperature is propagated into the storage tube 1 by conduction or radiation through the upper closing lid 2, and there is a risk of freezing the water meter 6, the stop cock 7 or the spiral coil 5.
Therefore, in the present invention, a material having elasticity and heat insulating properties is used in the vicinity of the water meter 6 and the stop cock 7 and in the vicinity of the upper closing lid 2 so as to be slidable in close contact with the inner wall surface of the storage tube 1. By arranging the heat insulating lid 11, the heat insulating lid 11 disposed in the vicinity of the upper closing lid 2 prevents a low-temperature change propagated from the upper closing lid 2, and the water meter 6 and the water stop cock 7 is used to keep the relatively warm temperature and temperature transmitted from the ground by means of the heat insulating lid 11 disposed in the vicinity of 7, thereby reliably preventing freezing.
[0022]
FIG. 5 shows that the diameter of the upper end 1A of the storage tube 1 is appropriately increased to form a required gradient at a length position 1C, and the required position 1C to the lower end 1B of the storage tube 1 is extended. It is sectional explanatory drawing of the storage pipe 1 which has what is called the gradient formed with the same diameter, Comprising: When it embed | buries using this storage pipe 1 and the soil freeze occurs, it is close to the ground surface and the ground surface Since the expanded soil pressure of the surface layer is greatly applied, the soil that contacts the outer surface of the gradient of the storage pipe 1 embedded in the surface layer portion with the application of the expanded soil pressure slips and moves upward. As a result, the storage pipe 1 itself can be prevented from freezing.
In such a case, the appropriate length position 1C where the diameter is formed wider than the diameter of the tip 1A of the storage tube 1 is specifically determined by the buried soil, soil quality, climatic conditions, etc. A length corresponding to about 1/2 to 1/4 from the front end 1A with respect to the entire length of the box 1 is desirable, and a specific diameter at an appropriate length position 1C is about 15 to 35 degrees in the formed gradient. The caliber is a rough guide.
[0023]
【The invention's effect】
As described above, according to the present invention, the storage tube has a cylindrical shape and has a required diameter and length, and the upper end has an insertion edge into which the entire upper closing cover is inserted, and the lower side is stored. The upper closing lid is attached via a mounting ring having a fitting edge capable of covering and fitting the upper end of the tube, and the lower closing lid is fitted and attached to the lower end to close the storage tube. Even when buried over, earth and sand, dust and the like do not flow into the interior, the water meter and the water stop cock are not fouled, and the elastic elasticity of the spiral coil is maintained and the lifting operation is not hindered.
Since the water supply pipe and the supply pipe whose one end is extended in an appropriate length outward from the lower side of the storage pipe are screwed together to form a helical coil, elastic stretchability The water meter and the water faucet can be easily lifted to the ground surface by lifting the horizontal support, and can be replaced, repaired or inspected. Furthermore, the edges of the water supply pipe and the supply pipe, and the edges of the water supply pipe and the supply pipe that form the spiral coil and the edges of the rigid, integral, and straight water meter and the stopcock are provided. The coil diameter of the spiral coil is equalized because the extension line is connected with a connecting pipe bent so as to be in the range of 50 to 85 degrees at the crossing angle between the extension line and the end extension line of the water meter and the stop cock. Since it is screwed up neatly and the ends of the connecting pipes are not joined to the inner wall surface of the storage pipe, the raising / lowering operation can be remarkably facilitated.
[0024]
In addition, according to the present invention, a cylindrical insertion holding body is inserted into the entire outer side surface of the storage tube and the mounting ring or an appropriate length range using a heat insulating material, or the storage tube is divided and used in a connected manner. When the lifting force is applied due to the addition of the expansion earth pressure due to the soil freezing, the insertion holder and the divided storage pipe slide upwardly to prevent the water box from freezing, and further to the appropriate length from the tip. In the case where a slope is formed up to the position, the buried soil in contact with the expansion earth pressure slides on the slope surface toward the ground surface, so that the storage pipe is prevented from freezing, etc. It is possible to carry out pavement work without any trouble, and the risk of damaging the landscape is eliminated, and in particular, re-embedding work due to frost heaving is also reduced. In addition, an insertion holder made of a heat-insulating material is inserted into the outer side of the storage tube, which has a large contact area with the frozen soil, so that low temperature propagation from the wall of the storage tube is eliminated, and a heat insulating lid is placed inside the storage tube. This water meter box has many features in practical use, such as being surely prevented from freezing in combination with being positioned.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view of a use mode of the present invention.
FIG. 2 is an explanatory diagram of a mounting ring.
FIG. 3 is a connection explanatory diagram of a water supply pipe and a supply pipe, a water meter and a stop cock.
FIG. 4 is an explanatory diagram in which storage tubes are divided and connected.
FIG. 5 is an explanatory view of a storage tube in which a gradient is formed.
FIG. 6 is a connection explanatory diagram of a conventional water supply pipe, a supply pipe, a water meter, and a stop cock.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Storage tube 1A Storage tube tip 1B Storage tube lower end 1C Storage tube appropriate position 2 Upper closing lid 2A Upper closing lid support edge 3 Mounting ring 3A Insertion edge 3B Fastening edge 3C Fitting edge 3D Hollow portion 3E Taper processing 4 Lower closing lid 4A Substrate 4B Fitting convex portion 5 Screw coil 5A Feeding pipe 5B Feeding pipe 6 Metering device 7 Stop cock 8 Connecting tube 9 Horizontal support body 10 Insertion holding body 11 Thermal insulation lid

Claims (6)

A cylindrical storage tube for storing a water meter connected to a water supply pipe and a stop cock connected to the water meter in a state of being buried in the ground;
An upper closing lid for closing the upper end of the storage tube;
A lower closing lid for closing the lower end of the storage tube;
A horizontal support that supports the water meter and the stop cock so as to be movable up and down in the storage pipe;
A water supply pipe and a supply pipe connected to the water meter and the water faucet form a spiral coil, and the water meter and the water faucet are pulled up by lifting the horizontal support. In a water meter box configured to be able to be pulled upward from the lower part of the storage tube,
A mounting ring that contacts and connects both the storage tube and the upper closure lid;
And inserting the holding member formed by insulation material which absorbs the storage tube and expansion earth pressure not covering the outer peripheral surface of the upper closure lid,
A heat-insulating lid that can move up and down in close contact with the inner wall of the storage tube, which is respectively disposed below the water meter side of the horizontal support and near the lower portion of the upper closing lid;
Water meter box characterized by comprising. The mounting ring is
On the upper side, a fitting edge for receiving the entire upper closing lid,
A fitting edge that encloses and fits the upper end of the storage tube to the lower side,
A fastening edge in contact with the lower end of the upper closing lid and the upper end of the storage tube at its inner intermediate position;
The water meter box according to claim 1, comprising:   The water supply pipe and the water stop pipe that form the spiral coil, the feed pipe and the water meter that form the spiral coil, the edge extension line of the water supply pipe and the feed pipe, and the stopper The crossing angle between the faucet and the edge extension line of the water meter is connected by a connecting pipe bent so as to be in the range of 50 to 85 degrees, respectively. The listed water box.   The insertion holding body has a slipperiness capable of moving up and down between the storage pipe and the outer peripheral surface of the mounting ring when a lifting force is applied by applying an expansion earth pressure accompanying freezing of buried soil. The water meter box according to claim 1 or 3, characterized in that.   The water container box according to claim 1, wherein the storage pipe is formed by connecting a plurality of divided cylindrical pipes. The storage tube is
A cylindrical portion having a diameter larger than the diameter of the upper end of the storage tube from the lower end of the storage tube to a predetermined position;
6. The water meter box according to claim 5, wherein the water meter box is formed from a conical portion that narrows with a certain gradient from the predetermined position to the upper end of the storage pipe.

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