KR20210001229A - Insulating case for protection box of water meter - Google Patents

Abstract

According to one aspect of the present invention, an insulation case for a protection box of a water meter, which is installed in a protection box body of a water meter protection box protecting a water meter buried in the ground, includes: a lower body having an open upper part; an upper body combined with the lower body to cover the open upper part of the lower body; a warmth-keeping cap for metering, which is provided to be connected to the upper body; and a confinement means fixing the insulation case for a protection box of a water meter in the protection box body. The lower body includes: a first piping hole through which a water inflow pipe is inserted; and a second piping hole through which a water discharge pipe is inserted. An opening part for metering is formed in the upper body, the warmth-keeping cap is inserted into the opening part to seal the opening part, and the confinement means includes a protrusion protruding from at least one of the outer surface of the lower body and the outer surface of the upper body. The protrusion is provided as an elastic member, and, when the insulation case for a protection box of a water meter is inserted into the protection box body, at least one part of the protrusion comes in contact with an inner surface of the protection box body. Meanwhile, the upper and lower bodies are formed by mixing EVA resin and a foaming agent.

Description

Insulation case for water meter protection box {INSULATING CASE FOR PROTECTION BOX OF WATER METER}

The present invention relates to a water meter protective box insulation case.

The water meter is for measuring the amount of water supplied to homes or multi-family houses, and is installed and used in the ground to prevent freezing in winter. These water meters are installed and used inside the water meter protection box to prevent blocking of foreign substances, protect them from freeze and shock, and to facilitate meter reading and maintenance.

In general, a synthetic resin material manufactured by molding injection is used for the main body of the water meter protective box, and a styrofoam material is used for the heat insulating member inside.

However, the conventional water meter protection box using the insulating member as styrofoam as in Korean Patent Application Publication No. 10-0901992 is not sturdy and can be easily damaged by external force. In addition, there is a problem that the water meter is easily freeze due to external cold air because it is difficult to completely close the body of the water meter protective container and the heat insulating member, so that external cold air cannot be completely blocked.

In the conventional water meter protection box as described above, when rainwater flows into the water meter protection box during the rainy season and the water becomes cold, the insulation member rises due to the buoyancy of the introduced water and pushes the outer cover so that the outer cover and the insulation member float in the water. Not only is it lost and contaminates the inside of the product, but also the insulation member made of styrofoam material can float into the river and cause environmental pollution. In addition, when the heat insulating member and the outer cover are lost, there is a problem that soil accumulates inside the water meter protective box, and the water meter and the water meter protective box are damaged and thus cannot be used anymore.

Patent Document: Korean Registered Patent Publication No. 10-0901992 (registered in 2009.06.03.)

Embodiments of the present invention have been proposed to solve the above problems, and to provide a water meter protective box insulation case capable of preventing the occurrence of freezing and freezing of the water meter in winter.

In addition, it is intended to provide a water meter protection box insulation case that can prevent the rise of the insulation member due to the inflow of rainwater.

In addition, it is intended to provide a durable water meter protective box insulation case.

According to an embodiment of the present invention, there is provided a water meter protective box insulation case installed inside a protective box body of a water meter protective box protecting a water meter buried underground, comprising: a lower body whose upper part is opened; An upper body coupled to the lower body to cover the open upper portion of the lower body; An insulating stopper for meter reading provided to be connected to the upper body; And a restraining means for fixing the water meter protection box insulation case to the inside of the protection box body, wherein the lower body includes a first pipe hole through which the water supply pipe is inserted, and a second pipe hole through which the water outlet pipe is inserted. Including, the upper body is formed with an opening for meter reading, the thermal insulation stopper is fitted to the opening to seal the opening, and the restraining means is at least one of an outer surface of the lower body and an outer surface of the upper body It includes a protrusion protruding from one, wherein the protrusion is provided as an elastic member, and when the water meter protective box insulating case is inserted into the protective box body, at least a part of the protrusion comes into contact with the inner surface of the protective box body, the The lower body and the upper body may be provided with a water meter protective box insulating case formed by mixing EVA resin, a foaming agent, and a crosslinking agent.

In addition, a water meter protective box insulating case may be provided in which the weight ratio of the foaming agent in the lower body and the upper body is 1 to 10%.

In addition, a water meter protective box insulating case may be provided in which the weight ratio of the crosslinking agent in the lower body and the upper body is 0.2 to 2%.

In addition, the protrusion length of the protrusion is formed larger than the distance between the outer surface of the lower body and the inner surface of the protective barrel body, and when the water meter protective box insulation case is inserted into the interior of the protective barrel body, the protrusion A water meter protective box insulating case may be provided in which a gap is formed between the protective box body and the water meter protective box insulating case.

In addition, the protrusion includes a first pressing unit; And a second pressing unit connected to the first pressing unit and having a larger width than the first pressing unit, and when the water meter protection box insulation case is inserted into the inside of the protection box body, the first pressing unit is bent. A water meter protective box insulating case may be provided for pressing the first pressing part and the second pressing part on the inner surface of the protective box body.

In addition, a water meter protective box insulating case may be provided in which the protrusion is formed in a number and shape corresponding to the groove so as to be inserted into at least one groove formed on the inner surface of the protective barrel body.

In addition, it includes an outer cover covering the open upper portion of the protective casing body, and the outer cover has a second locking bent in a ∩ shape so as to be fitted to the first locking portion bent in a ∪ shape on the uppermost side of the protective casing body. An additionally provided water meter protective box insulation case may be provided.

In addition, the outer cover may be provided with a water meter protective case insulation case formed by mixing EVA resin, foaming agent, and crosslinking agent.

In addition, a water meter protective box insulating case may be provided in which the weight ratio of the foaming agent in the outer cover is 1 to 10%.

In addition, a water meter protective box insulating case may be provided in which the weight ratio of the crosslinking agent in the outer cover is 0.2 to 2%.

In addition, the outer cover may be provided with a water meter protective box insulation case formed by foaming by further mixing an EVA discoloration inhibitor.

In addition, at least one first fixing protrusion protruding downward is formed in the outer cover, and when the second locking portion of the outer cover is hooked and fixed to the first locking portion of the protective tube body, at least one of the first fixing protrusions Some portions are in contact with the upper surface of the upper body, the lower body has at least one second fixing protrusion protruding upwardly from the lower body, and when the water meter protection box insulation case is inserted into the inside of the protection box body, the second At least a portion of the fixing protrusion may be provided with a water meter protective box insulating case in contact with the water meter.

In addition, the outer cover may be provided with a water meter protective case insulation case sanded on the upper surface.

In addition, it includes a fixing device for fixing the upper body to the protective box body, the fixing device is a water meter protective box insulation case that is bound to a fixing portion formed in a multi-stage upper and lower inclined surfaces and a locking jaw on the inner surface of the protective box body Can be provided.

The water meter protective box insulation case according to embodiments of the present invention may prevent freezing and freezing of the water meter.

In addition, it is possible to prevent the heat insulating member from rising due to the inflow of rainwater.

In addition, there is an advantage in that the durability is strong.

1 is a combined perspective view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to an embodiment of the present invention.
2 is a cross-sectional view schematically showing the configuration of the water meter protection box of FIG.
3 is a cross-sectional view showing a state before the water meter protective box insulation case of FIG. 2 is inserted into the water meter protective box.
4 is a cross-sectional view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to another embodiment of the present invention.
5 is a cross-sectional view showing a state before the water meter protective box insulation case of FIG. 4 is inserted into the water meter protective box.
6 is a cross-sectional view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to another embodiment of the present invention.
7 is a cross-sectional view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to another embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 is a combined perspective view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing the configuration of the water meter protective box of FIG. 3 is a cross-sectional view showing a state before the water meter protective box insulation case of FIG. 2 is inserted into the water meter protective box.

The water meter protective box insulation case 1 according to an embodiment of the present invention is a device installed inside the protective box body 2 of the water meter protective box P that protects the water meter protective box W buried underground. It can be understood as a device for preventing the water meter (W) from freezing. The water meter W is used to measure the amount of water supplied to homes or multi-family houses, and it will be a matter of self-evident to a person skilled in the art, so a more detailed description will be omitted.

1 to 3, the water meter protective box insulation case 1 includes a lower body 11 with an open top and an upper body 11 that is combined with the lower body 11 to cover the open upper part of the lower body 11 ( 12), and a thermal insulation stopper 13 for meter reading provided to be connected to the upper body 12, and a restraint means 14 for fixing the water meter protection box insulation case 1 inside the protection box body 2 have.

The lower body 11 is provided on the lower side of the water meter protective box insulation case 1, the first pipe hole 111 through which the water supply pipe is inserted, and the second pipe hole 113 through which the water outlet pipe is inserted. It may include.

The upper body 12 is provided on the upper side of the lower body, and an opening 121 for meter reading may be formed on the upper side thereof.

The lower body 11 and the upper body 12 may be made of a heat insulating member, thereby preventing the water meter W from freezing and breaking.

Meanwhile, the lower body 11 and the upper body 12 may contain EVA resin. EVA (ethyl-vinyl acetate copolymer) is a polymer obtained by copolymerizing ethylene and vinyl acetate monomers, and has excellent flexibility and strong durability. In addition, it is attracting attention as an eco-friendly material because it has excellent heat insulation, warmth, and coolness, and does not contain six heavy metals. However, such EVA has a high unit cost and lacks manpower and know-how of extrusion molding technology, and practical use is insufficient.

Specifically, the lower body 11 and the upper body 12 may be formed by mixing EVA resin, a foaming agent, and a crosslinking agent.

At this time, the weight ratio of the foaming agent in the lower body 11 and the upper body 12 may be 1 to 10%. When the weight ratio of the foaming agent is 10% or more, heat insulating properties are excellent, but physical properties may be weakened. Here, the foaming agent is produced by a chemical polymer mixing reaction, and any material that can be vaporized inside the resin particles and formed into bubbles may be used.

In addition, the weight ratio of the crosslinking agent in the lower body 11 and the upper body 12 may be 0.2 to 2%. Here, the cross-linking agent refers to a substance that forms a polymer compound having a three-dimensional network structure by connecting molecules of a linear polymer compound to each other by chemical bonds. By using a crosslinking agent, it is possible to increase the viscosity and strength of the compound during foaming to fix the gas generated by decomposition in a uniform and fine cell. Accordingly, mechanical properties and heat resistance of the lower body 11 and the upper body 12 may be improved.

As EVA resin having excellent shock absorption is used, permanent use of the lower body 11 and the upper body 12 may be possible, and excellent heat retention and heat insulation properties may be obtained. Therefore, as the water meter protective box insulating case 1 is manufactured through the EVA resin and the foaming method, it is mixed with the foaming agent while forming the water meter protective box insulating case 1 that is excellent in flexibility and resistant to internal impact by EVA resin. According to this, the manufacturing cost can be lowered.

The insulating stopper 13 may be fitted into the opening 121 of the upper body 12 to seal the opening 121. Since the opening 121 and the thermal insulation stopper 13 are formed, it is possible to easily check the inside of the water meter protective box insulation case 1, and facilitate meter reading and maintenance. The insulation stopper 13 is provided to be connected to the opening 121 to prevent loss and damage of the insulation stopper 13 due to meter reading of the water meter W.

The restraint means 14 may include a protrusion 141 protruding from at least one of an outer surface of the lower body 11 and an outer surface of the upper body 12 and provided as an elastic member. The protrusion 141 may be integrally formed with at least one of the lower body 11 and the upper body 12. In addition, the protruding length of the protrusion 141 may be formed larger than the gap between the outer surface of the lower body 11 and the inner surface of the protective barrel body 2. At this time, since the protrusion 141 is formed of a material having elasticity, the water meter protective box insulation case 1 may be inserted into the protective box body 2. When the water meter protective box insulation case 1 is inserted into the protective box main body 2, at least a part of the protrusion 141 comes into contact with the inner surface of the protective box main body 2 so that the protrusion 141 It can pressurize the inner surface. In FIG. 1, it has been described that the protrusion 141 is formed only on one side of the lower body 11 and the upper body 12, but the range in which the protrusion 141 is formed is not limited thereto. For example, the protrusion 141 may be continuously formed around the lower body 11 and the upper body 12. Since the protrusion 141 is formed, it is possible to prevent the lower body 11 and the upper body 12 from rising due to the buoyancy of water introduced during rain.

In addition, a gap 3 may be formed between the protective casing body 2 and the water meter protective casing insulation case 1 by the protrusion 141. The gap portion 3 may contribute to a heat shield by preventing heat inside the protective tube body 2, which has a relatively high temperature in winter, from escaping to the outside.

The water meter protective box insulation case 1 may include an outer cover 15 for covering the open upper part of the protective box body 2. A first locking part 22 bent in a ∪ shape may be formed on the uppermost side of the protective container body 2, and a ∩-shaped bent in a shape corresponding to the first locking part 22 on the outer cover 15 The second locking portion 151 may be formed. The first locking portion 22 and the second locking portion 151 may be formed of an elastic material, and when the outer cover 15 is fixed to the protective tube body 2, the first locking portion 22 and the second locking portion 22 The locking portion 151 may undergo a predetermined elastic deformation so that the second locking portion 151 may be fitted into the first locking portion 22.

Due to this outer cover 15, the outer cover 15 is fixed to the protective casing body 2, so that water flows into the water meter protective casing (P) during the rainy season, and the water meter protective casing insulation case 1 rises due to the buoyancy of water. Even so, it is possible to prevent the water meter protective box heat insulating case 1 from being lost by floating in water.

Meanwhile, the outer cover 15 may be formed by mixing an EVA resin, a foaming agent, and a crosslinking agent, and the weight ratio of the foaming agent in the outer cover 15 may be provided as 1 to 10%. In addition, the weight ratio of the crosslinking agent in the outer cover 15 may be provided in 0.2 to 2%. By using EVA resin with excellent shock absorption, it can have excellent heat insulation and heat insulation effects. Further, by using a crosslinking agent, the mechanical properties and heat resistance of the outer cover 15 can be improved.

In addition, the outer cover 15 may be formed by further mixing an EVA discoloration inhibitor and foaming together with an EVA resin, a foaming agent, and a crosslinking agent. When the water meter protection box P is buried in the ground, at least a part of the outer cover 15 may be exposed to the ground, and the EVA resin may be discolored when exposed to the air. By mixing the EVA discoloration inhibitor to form the outer cover 15, it is possible to prevent the outer cover 15 from being discolored.

Meanwhile, the outer cover 15 may be sanded on the upper surface. Accordingly, it is possible to prevent pedestrians from slipping by stepping on the outer cover 15 of the buried water meter protection box P.

The water meter protective box insulation case 1 may include a fixing device 16 that fixes the upper body 12 to the protective box body 2. The fixing device 16 may be provided on an upper side and one side surface of the upper body 12 so as to be bound to a fixing part 23 having an inclined surface and a locking protrusion formed on the inner surface of the protective tube body 2 in a multi-stage upper and lower body. At this time, the fixing part 23 may be formed to be fitted into a groove formed on the inner surface of the protective barrel body 2, and may be provided integrally with the protective barrel body 2.

Due to this fixing device 16, the upper body 12 is fixed to the fixing part 23 of the protective barrel main body 2, so that water flows into the protective barrel main body 2 during the rainy season and the upper body 12 flows in. It can be prevented from rising due to the buoyancy of water.

Hereinafter, a water meter protective box insulation case 1 according to a second embodiment of the present invention will be described with reference to FIGS. 4 and 5. However, since the second embodiment has a difference in the shape of the protrusion 141 compared to the first embodiment, the difference will be mainly described, and the description and reference numerals of the first embodiment are used for the same parts.

4 is a cross-sectional view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to another embodiment of the present invention, and FIG. 5 is a diagram in which the water meter protective box insulating case of FIG. 4 is inserted into the water meter protective box. It is a cross-sectional view showing the appearance before.

4 and 5, the protrusion 141 is connected to the first pressing portion 1411 extending around the lower body 11 and the upper body 12, and the first pressing portion 1411, and , It may include a secondary pressing portion 1413 having a larger width than the primary pressing portion 1411. The protruding length of the first pressing portion 1411 and the second pressing portion 1413 may be formed larger than the distance between the outer surface of the lower body 11 and the inner surface of the protective barrel body 2. Therefore, when the water meter protective box insulating case 1 is inserted into the protective box body 2, the primary pressing part 1411 is bent so that the water meter protective box insulating case 1 is inserted into the protective box body 2 In addition, the first pressing unit 1411 and the second pressing unit 1413 may pressurize the inner surface of the protective tube body 2. Specifically, when the water meter protective box insulation case 1 is inserted into the protective box main body 2, the first pressing part 1411 may be bent upward by 70° to 90°, and the first pressing part 1411 ) And at least a portion of the secondary pressing part 1413 may pressurize the inner surface of the protective tube body 2.

Accordingly, it is possible to prevent water from flowing into the protective barrel main body 2 during the rainy season and the lower body 11 and the upper body 12 from rising due to the buoyancy of the introduced water.

Hereinafter, a water meter protective box insulation case 1 according to a third embodiment of the present invention will be described with reference to FIG. 6. However, since the third embodiment has a difference in the shape of the protrusion 141 compared to the first embodiment, the differences will be mainly described, and the description and reference numerals of the first embodiment are used for the same parts.

6 is a cross-sectional view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to another embodiment of the present invention.

Referring to FIG. 6, the protrusions 141 may be formed in the number and shape corresponding to the grooves 21 so as to be inserted into at least one groove 21 formed on the inner surface of the protective tube body 2. Since the protrusion 141 is formed of an elastic member, the water meter protective box insulating case 1 may be inserted into the protective box body 2 and installed.

Accordingly, it is possible to prevent water from flowing into the protective barrel main body 2 during the rainy season and the lower body 11 and the upper body 12 from rising due to the buoyancy of the introduced water.

Hereinafter, a water meter protective box insulation case 1 according to a fourth embodiment of the present invention will be described with reference to FIG. 7. However, in the fourth embodiment, compared to the first embodiment, since there is a difference in the presence or absence of the first fixing protrusion 153 and the second fixing protrusion 115, the difference will be mainly described, and the same parts are described in the first embodiment. And reference numerals are used.

7 is a cross-sectional view schematically showing the configuration of a water meter protective box including a water meter protective box insulating case according to another embodiment of the present invention.

Referring to FIG. 7, at least one first fixing protrusion 153 protruding downward may be formed in the outer cover 15. When the second locking portion 151 of the outer cover 15 is caught and fixed by the first locking portion 22 of the protective tube main body 2, at least a part of the first fixing protrusion 153 may be separated from the upper surface of the upper body 12 Can be contacted.

In addition, at least one second fixing protrusion 115 protruding upward may be formed on the lower body 11. When the water meter protective casing insulation case 1 is inserted into the protective casing body 2, at least a part of the second fixing protrusion 115 may contact the water meter W. As such first fixing protrusion 153 and second fixing protrusion 115 are formed, water flows into the water meter protection box P, and the lower body 11 and upper body 12 rise due to the buoyancy of the introduced water. Can be prevented. Accordingly, it is possible to prevent the lower body 11 and the upper body 12 from being lost by floating in water and contaminating the inside of the product.

The water meter protective case insulation case 1 according to the embodiment of the present invention has been described above as a specific embodiment, but this is only an example, and the present invention is not limited thereto, and the widest scope according to the basic idea disclosed in the present specification Should be interpreted as having A person skilled in the art may combine and replace the disclosed embodiments to implement a pattern of a shape not indicated, but this also does not depart from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, and it is clear that such changes or modifications also belong to the scope of the present invention.

W: water meter
P: water meter box
1: water meter protective box insulation case
11: lower body 111: first piping hole
113: second piping hole 115: second fixing protrusion
12: upper body 121: opening
13: thermal plug 14: restraint means
141: protrusion 1411: primary pressing part
1413: secondary pressing part 15: outer cover
151: second locking portion 153: first fixing protrusion
16: fixing device 2: protective box body
21: groove 22: first locking portion
23: fixed portion 3: gap portion

Claims (14)

In the water meter protective box insulation case installed inside the protective box body of the water meter protective box protecting the water meter buried underground,
A lower body whose upper part is open;
An upper body coupled to the lower body to cover the open upper portion of the lower body;
An insulating stopper for meter reading provided to be connected to the upper body; And
And a restraint means for fixing the water meter protective box insulation case inside the protective box body
The lower body,
A first pipe hole through which the receiving pipe is inserted,
It includes a second pipe hole through which the water outlet pipe is inserted,
An opening for reading a meter is formed in the upper body,
The insulating stopper is fitted into the opening to seal the opening,
The restraint means includes a protrusion protruding from at least one of an outer surface of the lower body and an outer surface of the upper body,
The protrusion is provided as an elastic member,
When the water meter protective box insulation case is inserted into the protective box body, at least a part of the protrusion is brought into contact with the inner surface of the protective box body,
The lower body and the upper body is a water meter protective box insulation case formed by mixing EVA resin, a foaming agent, and a crosslinking agent. The method of claim 1,
The water meter protective box insulation case in which the weight ratio of the foaming agent in the lower body and the upper body is 1 to 10%. The method of claim 1,
The water meter protective box insulation case in which the weight ratio of the crosslinking agent in the lower body and the upper body is 0.2 to 2%. The method of claim 1,
The protrusion length of the protrusion is formed to be larger than the distance between the outer surface of the lower body and the inner surface of the protective box body when the water meter protective box insulating case is inserted into the protective box body,
When the water meter protection box insulation case is inserted into the inside of the protection tube body, a gap is formed between the protection tube body and the water meter protection tube insulation case by the protrusion. The method of claim 4,
The protrusion,
A primary pressing unit; And
It is connected to the first pressing unit, and includes a second pressing unit having a larger width than the first pressing unit,
When the water meter protective box insulating case is inserted into the protective box body, the first pressing part is bent so that the first pressing part and the second pressing part pressurize the inner surface of the protective box body. The method of claim 1,
The water meter protective box insulation case is formed in a number and shape corresponding to the groove so that the protrusions are inserted into at least one groove formed on the inner surface of the protective container body. The method of claim 1,
It includes an outer cover covering the open upper portion of the protective tube body,
The outer cover is provided with a second locking portion bent in a ∪ shape so as to be fitted to the first locking portion bent in a ∩ shape on the uppermost side of the protective container body. The method of claim 7,
The outer cover is a water meter protective box insulation case formed by mixing EVA resin, a foaming agent, and a crosslinking agent. The method of claim 8,
In the outer cover, the weight ratio of the foaming agent is 1 to 10% water meter protective box insulation case. The method of claim 8,
In the outer cover, the weight ratio of the crosslinking agent is 0.2 to 2% of the water meter protective box insulation case. The method of claim 9,
The outer cover is a water meter protective box insulation case formed by foaming by further mixing an EVA discoloration inhibitor. The method of claim 8,
At least one first fixing protrusion protruding downward is formed in the outer cover,
When the second locking portion of the outer cover is hooked and fixed to the first locking portion of the protective barrel body, at least a portion of the first fixing protrusion contacts the upper surface of the upper body,
At least one second fixing protrusion protruding upward is formed in the lower body,
When the water meter protection box insulation case is inserted into the inside of the protection box body, at least a part of the second fixing protrusion contacts the water meter protection box insulation case. The method of claim 8,
The outer cover is a water meter protective box insulation case with sanding treatment on the upper surface. The method of claim 1,
Including a fixing device for fixing the upper body to the protective tube body,
The fixing device is a water meter protection box insulation case which is bound to a fixing part having an inclined surface and a locking jaw formed in upper and lower multi-stages on an inner surface of the protective container body.

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