JP3010041U - Insulation case for water meter - Google Patents

Abstract

(57) [Summary] [Purpose] It has a relatively simple structure and can be mounted on a water meter housing without damage or plastic deformation, and it can be installed on an already installed water meter housing. It is possible to provide a heat-insulating case for a water container that saves space during transportation. In a heat retaining case including a heat retaining lid made of elastically deformable foamed resin and a case body disposed inside a water meter housing, a case body 30 is divided by a plurality of divided bodies 31, 32, 33, 34. Configure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a water stopcock that is housed in a buried water meter housing and a heat insulation case that is installed in the water meter housing that protects the water meter from cold air.

[0002]

[Prior art]

 A water meter for measuring the amount of water used is installed in a water pipe that is drawn into a home or factory, and this water meter is housed in a water meter housing equipped with an opening / closing lid.

Although the water pipe itself is buried in the ground, it is not so affected by cold air, but the water meter and the water supply pipe before and after it is connected to the water meter are inside the water meter box. It is located in an exposed state. For this reason, in order to prevent cold water from entering the water meter housing and freezing and damaging the water in these water meter and water supply pipes, the heat insulation case described in Japanese Utility Model Publication No. 1-39798. Has been devised.

FIG. 6A is a perspective view showing a heat retaining case disclosed in Japanese Utility Model Publication No. 1-39798. The heat retaining case is formed by a flat plate-shaped lid 100 and a rectangular horizontal cross section. It is composed of a tubular body 101. Since the lid 100 and the cylinder 101 are required to have heat insulating properties, polymer foams such as polyethylene beads and polyurethane are used.

With reference to FIG. 6 (b), the lid 100 is fixed to the back side of an openable / closable lid 111 provided on the top of the water meter housing 110 by pinning or an adhesive. Further, the cylindrical body 101 is closely attached to the inner peripheral wall of the water meter housing 110, has a space for accommodating the water meter, and is formed so that the opening gradually widens downward. Has been done. In addition, 112 in FIG.6 (b) is a bottom body attached to the lower part of the water meter housing 110.

In this heat insulating case, when mounting the tubular body 101 on the water meter housing 110, first, the long side peripheral wall of the tubular body 101 is pressed to narrow the interval between the long side peripheral walls to measure the tubular body 101. It is elastically deformed into a size and shape that can be inserted into the water container 110. In this state, the cylinder 101 is inserted into the water meter housing 110 from below the water meter housing 110. Then, by removing the pressing force in that state, the outer peripheral surface of the tubular body 101 can be brought into close contact with the inner peripheral wall of the water meter housing 110 in a pressed state by the elastic restoring force of the tubular body 101.

[0007]

[Problems to be solved by the device]

 As described above, in the conventional heat insulating case, since the tubular body 101 forming the main body is an integrally molded product having a rectangular horizontal cross section, when the tubular body 101 is fitted into the water meter housing 110, the wall surface of the tubular body 101 is fixed. It is necessary to press and elastically deform it to a size that can be inserted into the water meter housing 110, and a large force for elastically deforming is required. Not only that, but depending on the pressing method, there is a problem that the tubular body 101 made of a polymer foam may be deformed so as to project inward, or may be damaged if it is severe.

Further, since the integrally molded tubular body 101 is inserted from below the water meter housing 110, when the water meter housing 110 is newly installed, there is no particular problem other than the above, but it is already known. In order to attach the heat insulating case to the installed water meter housing or replace the damaged tubular body 101, it is necessary to dig up the entire water meter housing from the ground.

Further, since the conventional heat insulation case is the integrally molded tubular body 101, when transporting a large number of heat insulation cases, the heat insulation cases can be stacked only slightly in the vertical direction, and the space in the central portion occupies the space. There is also a problem that the transportation cost is high relative to the loaded weight because the ratio is large.

Therefore, the problem to be solved in the present invention is that the water meter can be installed in the water meter housing without damage or plastic deformation with a relatively simple structure, and the water meter already installed can be used. The purpose is to provide a heat insulation case for a water container that can be attached to the container and that does not take up much space during transportation.

[0011]

[Means for Solving the Problems]

 As a result of earnest research to solve the above-mentioned problems, the present inventor has found that the case body, which was conventionally integrally molded, can be installed as a divided body so that the water meter can be attached from the upper part of the case. Has been completed.

[0012] That is, the present invention is a heat-insulating case including a heat-insulating lid made of elastically deformable foamed resin and a case body, which is disposed in a water meter housing, and is made up of a plurality of plate-shaped divided bodies. It is characterized in that the main body is configured.

Here, the joint surfaces of the respective divided bodies constituting the case body are brought into abutting contact with each other at an angle, or ribs protruding from the inner peripheral wall of the water meter housing are sandwiched. Slits can be formed. It is also possible to form an engaging portion that fits into the uneven portion formed on the water meter housing.

[0014]

[Action]

 By making the case body, which was conventionally integrally molded, a split body, it is possible to insert the split body from the upper opening of the water meter housing, which allows it to be inserted into the inner peripheral wall of the water meter housing that has already been installed. You can now attach the case body.

[0015]

【Example】

 The features of the present invention will be specifically described below based on the embodiments shown in the drawings. FIG. 1 is a perspective view of a water measuring device housing having a heat insulating case according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the water measuring device housing shown in FIG. 1, and FIG. 3A is a plan view showing a combined state, FIG. 3B is a sectional view taken along line AA of FIG. 3A, and FIG. 3C is a sectional view taken along line BB of FIG. 3A.

Referring to FIGS. 1 and 2, reference numeral 1 is a water meter housing main body, 2 is a water meter housing cover that is provided on an upper portion of the water meter housing main body 1, and can be opened and closed, and 3 is a water meter. It is a joint frame body provided in the lower part of the housing main body according to the height of the installation position, and the bottom body 4 is provided in the lowermost part, and these are made of synthetic resin.

Further, a heat insulating case 10 made of foamed polystyrene is provided on the inner peripheral wall of the water meter housing main body 1, the water meter housing lid 2, the joint frame body 3, and the like.

The heat insulation case 10 includes a heat insulation lid 20 provided on the back surface of the water meter housing cover 2, a case main body 30 provided on the inner peripheral wall of the water meter housing main body 1, and an inner peripheral wall of the joint frame body 3. It is constituted by the joint frame heat retaining case 40 provided in the.

As clearly shown in the exploded perspective view of FIG. 2A, a groove 20 a for engaging with an uneven portion formed on the back surface of the water container cover 2 is provided on the upper surface side of the heat insulation cover 20. Are formed in the horizontal and vertical directions, and are adhered to the back surface of the water meter housing cover 2 by hot melt, double-sided adhesive tape or the like. Further, a notch portion 20b for a keyhole is formed substantially at the center in the longitudinal direction, and a metal plate 21 for protection is detachably fitted in the notch portion 20b, and the heat retaining lid 20 is opened by a tool for opening the lid. I try not to damage it.

The water meter housing main body 1 is a tubular body having an opening in the vertical direction, and a reinforcing plate-like rib 1a is provided on the inner peripheral wall so as to project. Reference numeral 1b is an opening for disposing a water pipe, and when the joint frame body 3 is used, the opening 1b is closed by a window plate 1c made of rubber. As a result, it is possible to prevent the entry of earth and sand from the opening 1b into the water meter housing.

Next, referring to FIG. 2 showing the disassembled state and FIG. 3 showing the combined state, the case body 30 has long members 31, 32 and short members as clearly shown in FIG. 3 (a). By combining four divided bodies 33 and 34, a tubular body having a rectangular horizontal cross section is formed.

As shown in FIG. 3 (b), the long member 31 has seven slits 31 a formed between the upper end and about the middle of the plate-shaped rib 1 a of the main body 1 of the water measuring device. ing. By sandwiching the plate-shaped rib 1a in the slit 31a during mounting, the long member 31 can be easily held on the inner peripheral wall of the water meter housing main body 1.

Reference numeral 31b is an engaging portion that fits into a recess 1d (shown in FIG. 5) formed in the water meter main body 1. By fitting the engaging portion 31b into the recess 1d formed in the water meter main body 1, the long member 31 is prevented from falling off together with the holding force in the slit 31a. Since the long member 32 appears symmetrically with the long member 31, the description thereof will be omitted.

The short member 33 has a slit 33 a and an engaging portion 33 b, which are substantially the same as the long members 31 and 32. However, the short member 33 has about half the length of the long members 31 and 32 according to the size of the water meter housing main body 1. The length. The short member 34 appears symmetrically with the short member 33, and therefore its description is omitted.

The long members 31 and 32 and the short members 33 and 34 are cut so that the joint surfaces that abut each other have an inclination angle of 45 degrees, and when they are butted, they are shown in FIG. ) Will form a rectangular shape without a gap. By cutting with such an inclination angle of 45 degrees, when any three members out of the long members 31, 32 and the short members 33, 34 are attached to the water meter housing main body 1 first, the remaining members are Although it will be attached after being slightly deformed, the lower part of each member is prevented from turning over to the main body 1 of the water container.

It should be noted that, on the inner surfaces of the long members 31, 32 and the short members 33, 34 made of expanded polystyrene, the foam beads are made inconspicuous to improve the aesthetic appearance, and the surface of the divided body is hit with a metal rod or the like. Silicon mesh processing is applied to prevent the foam beads from partially falling off.

As described above, the case body 30 is configured by the four divided bodies of the long members 31 and 32 and the short members 33 and 34, so that the division body can be inserted from the upper opening of the water meter housing. This makes it possible to easily attach the case main body 30 to the inner peripheral wall of the water meter housing main body 1 even when the water meter housing main body 1 is already installed.

Further, as described above, the joint frame body 3 is used depending on the installation depth, and the heat insulating case 40 for the joint frame body provided on the inner peripheral wall of the long frame member 40a and the short member 40b is also used. It is composed of four members and can be mounted from above.

FIG. 4 is a side view showing a part of the water meter housing with the heat insulating case 10 cut away in the long side direction, and FIG. 5 is a view of the water meter housing partially cut away in the short side direction. It is a side view.

As shown in the figure, the engaging portions 31b and 33b of the case main body 30 enter the recess 1d of the water meter housing main body 1, and further the slits 31a and 33a form the inner peripheral wall of the water meter housing main body 1. By sandwiching the rib 1a protrudingly provided, the divided bodies 31, 32, 33, and 34 are closely attached to the inner wall surface of the water meter housing main body 1. Further, as explained in FIG. 3, since each joint surface has a butt angle of 45 degrees, each divided body 31, 32, 33, 34 repels each other at the time of mounting, so that it can be mounted more firmly. Becomes Further, since each of the divided bodies 31, 32, 33, 34 of the case main body 30 is plate-shaped, they can be stacked efficiently at the time of transportation, thereby reducing the transportation cost.

Although the case main body is divided into four in the above-described embodiment, it is needless to say that the case main body is not limited to this and may be divided into plural parts.

[0032]

[Effect of device]

 The present invention has the following effects.

(A) By forming the case main body with a plurality of divided bodies, the divided body can be inserted from the upper opening of the water meter housing, which allows the inside of the water meter housing already installed. The case body can be attached to the peripheral wall.

(B) By making the joint surfaces of the divided bodies constituting the case main body, which abut each other, abut on each other at an angle, it is possible to prevent the divided bodies from turning inside the main body of the water container in the mounted state.

(C) By forming slits for sandwiching ribs protruding from the inner peripheral wall of the water meter housing in each divided body, each divided body can be easily held on the inner peripheral wall of the water meter housing main body. be able to.

(D) By fitting the engaging portion into the concave portion of the main body of the water measuring device, it is possible to prevent the split bodies of the case main body from falling off together with the holding force of the slit.

(E) Since each component of the heat insulating case is plate-shaped, it can be efficiently stacked at the time of transportation and the transportation cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a water meter housing equipped with a heat insulating case according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the water meter housing shown in FIG.

3A is a plan view showing a state in which the case bodies are combined, FIG. 3B is a sectional view taken along line AA of FIG. 3A, and FIG.
FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 4 is a side view showing a part of the water meter housing with the heat insulating case shown in FIG.

FIG. 5 is a side view showing the water meter housing with the heat insulating case shown in FIG. 1 partially cut away in the short side direction.

FIG. 6A is a perspective view of a conventional heat insulating case, and FIG.
[Fig. 4] is a cross-sectional view showing a state where the heat insulating case shown in (a) is attached to a water container.

[Explanation of symbols]

 1 water meter housing main body 1b plate-shaped rib 1d recess (uneven part) 2 water meter housing 3 cover frame 10 heat insulation case 20 heat insulation lid 20a groove 30 case body 31, 32 long member (split body) 33, 34 short Member (divided body) 31a, 33a Slits 31b, 33b Engaging portion 40 Joint frame case 40a Long member (divided body) 40b Short member (divided body)

Claims (4)

[Scope of utility model registration request] 1. A heat insulating case, which comprises an elastically deformable foamed resin heat insulating cover and a case main body, which are disposed in a water meter housing, and wherein the case main body is constituted by a plurality of plate-shaped divided bodies. A heat-insulating case for a water meter. 2. The heat insulation case for a water meter housing according to claim 1, wherein joint surfaces of the divided bodies constituting the case body, which abut against each other, are butted against each other at an angle. 3. The heat insulating case for a water meter housing according to claim 1, wherein a slit for sandwiching a rib protruding from an inner peripheral wall of the water meter housing is formed in each divided body. . 4. The heat insulation case for a water meter housing according to claim 1, wherein an engaging portion that fits into an uneven portion formed on the water meter housing is formed in each divided body. .