KR200470242Y1 - Water meter for preventing from freezing-destruction - Google Patents

Abstract

The present invention is provided between the lower outer shell and the water flow forming portion, and between the water flow forming portion and the reduction gear portion to prevent the freezing elastic deformation member to reduce the amount of water contained therein and at the same time absorb the increase volume of water due to freezing The present invention relates to a freeze-preventing water meter that can be prevented.
Freeze protection water meter according to the present invention, the lower outer shell body and the inlet pipe is connected to one side and the outlet pipe is connected to the other side and the receiving space is formed inside, the lower outer shell is installed in the lower portion of the receiving space of the outer shell and the inlet pipe Tap water flowed in from the water inlet through the inlet to the outlet through the outlet to the outlet pipe to rotate the impeller, and installed in the upper portion of the water flow in the receiving space of the lower outer shell body and the water flow is generated A reduction gear unit having a multi-stage reduction gear interlocked with a negative impeller, and a display unit installed above the reduction gear unit and linked to a deceleration rotation of the reduction gear unit so that a display plate and a metering needle display a flow rate and glycerin is filled around the display plate. And stacked on top of the display unit to protect the display panel and to maintain the airtightness of the glycerin. The key is coupled to the transparent outer plate and the outer outer shell, the upper outer shell holding the transparent plate and having an opening and closing cover at the top, and the first freeze protection elastic deformation interposed between the lower outer shell and the water flow forming portion And a second freezing elastic deformation member interposed between the member and the water flow forming unit and the reduction gear unit.

Description

Freezing Water Meter {WATER METER FOR PREVENTING FROM FREEZING-DESTRUCTION}

The present invention relates to a freeze-preventing water meter, and more specifically, a freeze-proof elastic deformation member is provided between the lower outer shell and the water flow-forming portion and between the water flow-forming portion and the reduction gear portion to reduce the amount of water contained therein. At the same time, it relates to a freeze-prevention water meter to prevent freezing by absorbing the increased volume of water due to freezing.

In general, water and water meters are installed in homes and industrial facilities to measure the use of water supplied by individual entities, and to calculate and charge the usage fee according to the amount of inspection. As the exposed water meter and the tap water inside the water pipe connected thereto are frozen, the water meter may be frozen.

Such a conventional water meter rotates the impeller while tap water introduced from the inlet pipe enters the water flow forming part through the inlet hole and exits the outlet pipe through the outlet hole. It is transmitted to the reduction gears of the fisherman, and finally, the numerical display of the display unit located on the upper side of the reduction gear unit displays the flow rate of water and has a configuration that can be confirmed through the display window of transparent material.

The water pressure of 1.5kgf / ㎠ to 12kgf / ㎠ is supplied to the inside of the water meter installed between the inlet pipe and the outlet pipe so that the tap water supplied through the underground water pipe can be smoothly supplied to the home or industrial facility. This is maintained, which causes water to enter the space inside the display unit as well as the reduction gear unit.

In this situation, when the temperature drops rapidly below freezing and the water filled in the inlet and outlet pipes freezes, the water filled in the internal space of the water meter becomes stagnant, and the stagnant water immediately starts to freeze. In the process of phase change of a certain amount of water filled inside the pipe and the water meter from liquid to solid ice, it is necessarily accompanied by volume expansion, but the body of the water meter that accommodates the water flow forming part, the reduction gear part and the display part is accompanied by the phase change. There was a problem in that the freezing wave is broken in the internal components of the reduction gear, the display panel or the display window in the process of forming ice because it does not expand corresponding to the volume expansion.

As part of solving the freezing problem of the above-mentioned water meter, Korean Patent Publication No. 10-2003-0039111 (published on May 17, 2003) discloses a water meter protection container for protecting a water meter buried underground. In addition, Korean Patent Publication No. 10-2004-0013366 (published on Feb. 14, 2004) covers the left and right sides of the meter housing through which tap water flows, and at the same time, the cover is integrally formed by tightening bolts. On the other hand, there is disclosed a freezing and freezing device of the water meter, which is installed on the inner surface of each cover to prevent the freezing and freezing of the meter in the cold winter season by installing a heater plate that is generated by power connection. .

However, the above-mentioned freeze protection components of the conventional water meter cannot be a fundamental measure to prevent freezing, and even if the water meter treated with heat due to the extreme weather in winter, the occurrence of freezing water meter is increasing every year. If the manual meter is freezing due to extreme weather, the customer must bear the cost of replacing and installing the meter, and the leakage fee according to the freezing rate. Since there is a need to connect the electric power separately, there is a problem in that a short circuit occurs due to internal moisture or loss of function due to disconnection.

Therefore, the present invention is provided between the lower outer shell and the water flow forming portion, and between the water flow forming portion and the reduction gear portion to prevent the freezing elastic deformation member to reduce the amount of water contained therein and at the same time absorb the increase volume of water due to freezing The object of the present invention is to provide a water meter for preventing freezing.

The above object of the present invention, the inlet pipe is connected to one side and the outlet pipe is connected to the other side and the lower outer shell body is formed in the receiving space therein, the lower outer shell is installed in the lower portion of the receiving space of the outer shell and inflow from the inlet pipe Tap water enters through the inflow hole and exits through the outlet hole and exits to the outlet pipe, and a water flow generating part for rotating the impeller, and installed in the upper portion of the water flow generating portion in the receiving space of the lower outer shell and the impeller of the water flow generating portion A reduction gear unit having a multi-stage reduction gear interlocked with the control unit, a display unit which is installed above the reduction gear unit and linked to a deceleration rotation of the reduction gear unit to display the flow rate of the display panel and the metering needle, and is filled with glycerin around the display panel; A transparent play stacked on top of the display unit to protect the display panel and maintain the airtightness of the glycerin. And an upper outer shell body coupled to the lower outer shell and holding the transparent plate and having an opening and closing cover thereon, a first freeze protection elastic deformation member interposed between the lower outer shell and the water flow forming unit; It is achieved by providing a freeze-proof water meter including a second freeze-proof elastic deformation member interposed between the water flow forming portion and the reduction gear portion.

According to a preferred feature of the present invention, the first freeze protection elastic deformation member is formed of an elastic plate of silicon material or concentric ring protrusions are integrally formed on the upper portion of the elastic plate or air or fluid is filled therein. It is formed into a tube body.

According to a preferred feature of the present invention, the second freeze protection elastic deformation member is formed of an elastic plate made of silicon material having a through hole in the center so that the impeller penetrates or a through hole is formed in the center so that the impeller penetrates and air is formed therein. Or a tube body filled with a fluid.

According to a preferred feature of the present invention, the transparent plate is made of polycarbonate (PC) resin or ABS (Acrylonitrile Butadiene Styrene) resin having excellent strength.

According to a preferred feature of the present invention, the lower outer shell is formed in a cylindrical shape or a jar shape.

According to the present invention, the freeze-prevention water meter is provided with a first freeze protection elastic deformation member between the lower outer shell body and the water flow forming portion, and a second freeze protection elastic deformation member is provided between the water flow forming portion and the reduction gear portion, and The amount of water accommodated in the water is reduced by the volume of the first and second freeze protection elastic members so that the volume increase due to freezing of the water is substantially reduced, and at the same time, the freezing is caused by the elasticity of the first and second freeze protection elastic members. As the increase in volume of water is absorbed, there is an excellent effect that the freezing wave can be prevented double.

In addition, according to the freeze-prevention water meter according to the present invention, since the transparent plate is made of polycarbonate resin or ABS resin having excellent strength, the transparent plate may be prevented from being broken even if the volume of the water inside freezes due to the cold wave. have.

1 is an exploded perspective view of a water meter for preventing the freezing according to a first embodiment of the present invention.
2 is a cross-sectional view of the freezing water meter according to the first embodiment of the present invention.
Figure 3 is an exploded perspective view of the water meter for preventing the freezing according to a second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1 is an exploded perspective view of a freeze protection water meter according to a first embodiment of the present invention, Figure 2 is a cross-sectional view of a freeze protection water meter according to a first embodiment of the present invention, Figure 3 An exploded perspective view of a freeze-preventing water meter according to a second embodiment of the present invention is shown.

Freeze-prevention water meter 1 according to the present invention is to reduce the amount of water accommodated therein and at the same time to absorb the increased volume of water due to freezing to prevent the winter freeze is double, Figure 1 to Figure As shown in 3, the lower outer shell body 10 and the lower inlet pipe (not shown) is connected to one side and the outlet pipe (not shown) is connected to the other side and the receiving space 11 is formed therein, the lower Tap water is installed in the lower portion of the receiving space 11 of the outer shell body 10 and the tap water introduced from the inlet pipe enters through the inlet hole 21 and exits through the outlet hole 23 to the outlet pipe, thereby opening the impeller 25. Multi-stage that is installed on the water flow generating portion 20 to rotate, the upper portion of the water flow generating portion 20 in the receiving space 11 of the lower outer shell 10 and interlocked with the impeller 25 of the water flow generating portion 20 Reduction gear unit 30 is provided with a reduction gear 31 and a reduction gear The display unit 40 is installed on the upper side of the display unit 40 and is linked to the deceleration rotation of the reduction gear unit 30 so that the display panel 41 and the metering needle 43 display the flow rate, and the glycerin 45 is filled around the display panel 41. ) And a transparent plate 50 which is stacked on the display unit 40 to protect the display panel 41 and maintains the airtightness of the glycerin 45, and the transparent plate 50 while being coupled to the lower outer shell body 10. An upper outer shell body 60 that is gripped and provided with an opening and closing cover 61, a first freeze protection elastic deformation member 70 interposed between the lower outer shell body 10 and the water flow forming unit 20, and water flow And a second freezing elastic deformation member 80 interposed between the forming unit 20 and the reduction gear unit 30.

Here, the lower outer shell 10 is to form a lower housing of the freeze-prevention water meter 1 according to the present invention, the inlet pipe (not shown) connected to the water supply pipe on one side is connected to the water supply pipe on the other side Outlet pipe (not shown) connected to the phase is connected to the water flow generating unit 20, the reduction gear unit 30, the first freeze protection elastic deformation member 70 and the second freeze protection elastic deformation member 80 Is built and the receiving space 11 is formed in communication with the inlet pipe and the outlet pipe, respectively.

The lower outer shell 10 may be formed in a cylindrical shape or may be formed in a jar shape as shown in the figure.

The water flow generating portion 20 is installed in the lower portion of the accommodation space 11 of the lower outer shell 10, the water flow generating portion 20 is a vertical axis shape provided with the blade car by tap water is introduced into and discharged inside The water flow for rotating the impeller 25 of the to be formed, the tap water introduced from the inlet pipe enters through the inlet hole 21 of the lower side and exits the outlet pipe through the outlet hole 23 of the upper side to the impeller It has a structure to rotate 25.

The water flow generating portion 20 is rotated by the lower inner shell body is formed in the inlet hole 21 on the lower side and the outlet hole is formed on the upper side, and the water flow discharged through the inlet hole 21 through the inlet hole 21 And an upper inner shell formed integrally with the lower inner shell and surrounding the upper portion of the impeller 25. The lower inner shell contains the blade car of the impeller 25 and the upper inner shell. A second freeze protection elastic deformation member 80 to be described later is accommodated.

The reduction gear part 30 is installed in the upper portion of the water flow generating portion 20 in the accommodation space 11 of the lower outer shell 10, which is the impeller (30) of the water flow generating portion 20 It is to reduce the rotation of the 25 to transmit the rotational force for the meter display to the display unit 40, it is composed of a multi-stage and multi-stage reduction gear 31 linked to the impeller 25 of the water flow generating unit (20).

The display unit 40 is provided above the reduction gear unit 30, and the display unit 40 displays the flow rate through the display plate 41 and the metering needle 43 which are linked to the deceleration rotation of the reduction gear unit 30. As such, the configuration of the display unit 40 is already known, and detailed description thereof will be omitted here for the sake of simplicity.

However, the glycerol 45 is filled around the display panel 41 to protect the display panel 41. A packing for airtightness is provided at the entire circumference of the display unit 40. This is not provided.

The transparent plate 50 is stacked above the display unit 40, and the transparent plate 50 not only serves as a kind of transparent plate protecting the display panel 41 but also maintains the airtightness of the glycerin 45. Instead of ordinary glass, it is preferable to be made of polycarbonate (PC) resin or ABS (Acrylonitrile Butadiene Styrene) resin having excellent strength to resist freezing waves.

The upper outer shell 60 is coupled to the lower outer shell 10, for example, by screwing, etc. The upper outer shell 60 forms a lower housing of the freeze-preventing water meter 1 according to the present invention. By holding the transparent plate 50 is formed of a ring-shaped body that serves to closely adhere to the lower outer shell 10, in particular the display unit 40, the upper one side for the external exposure of the transparent plate 50 The opening and closing cover 61 is hinged to open and close. In addition, the inner side of the upper outer shell 60 is provided with a fixing ring 63 for holding the actual transparent plate 50.

Between the lower outer shell 10 and the water flow forming portion 20 described above is a first freeze protection elastic deformation member 70, the first freeze protection elastic deformation member 70 of the water flow forming portion 20 In addition to supporting the lower surface, the volume of water contained in the lower outer shell 10 is reduced by its own volume so that the volume increase due to freezing of the water is fundamentally reduced and at the same time the volume increases due to freezing of the water. By absorbing the increased volume of water due to freezing by self-elastic deformation, it is possible to prevent the freezing waves to be double, and formed of an elastic plate made of a silicone material capable of elastic deformation or a concentric ring protrusion on the elastic plate. It may be integrally formed with a protrusion or a tube body filled with air or fluid therein, and according to the embodiment may also be formed of an air cap collectively referred to as a cap.

The first freeze protection elastic deformation member 70 may be coupled to the lower surface of the water flow forming portion 20 by a fastening member, and in some embodiments, water resistance such as a silicone adhesive on the lower surface of the water flow forming portion 20. It may be attached by an adhesive.

Between the above-described water flow forming unit 20 and the reduction gear unit 30, in particular, in the lower inner shell of the water flow forming unit 20, a second freezing elastic deformation member 80 is interposed. The member 80 reduces the amount of water contained in the lower outer shell body 10 by its own volume so that the volume increase due to freezing of the water is essentially reduced, and at the same time, the elasticity of the member 80 is increased when the volume increases due to freezing of the water. To absorb the increase in the volume of water due to freezing by deformation to prevent the double-waves, the impeller 25 is formed of an elastic plate made of silicone material formed with a through-hole 81 in the center to penetrate or impeller A through hole 81 may be formed at the center to penetrate the 25, and may be formed as a tube body filled with air or a fluid therein. In some embodiments, the through hole 81 may be formed at the center so that the impeller 25 penetrates. This brother It may also be formed as a formed air cap (collectively referred to as a “foil”).

Therefore, the freeze protection water meter 1 according to the present invention described above, the first freeze protection elastic deformation member 70 is provided between the lower outer shell 10 and the water flow forming unit 20 and the water flow forming unit 20 ) And the second freeze protection elastic deformation member 80 is provided between the reduction gear unit 30 and the amount of water contained therein is reduced by the volume of the first and second freeze protection elastic deformation members 70 and 80. The volume increase due to freezing of the water is fundamentally reduced, and the freezing is prevented as the volume of water is absorbed by freezing by the self-modifying deformation of the first and second freezing elastic deformation members 70 and 80. Can be.

In addition, in the case of the freeze-preventing water meter 1 according to the present invention, the transparent plate 60 which is frequently broken during freezing is not made of glass having low strength but is made of polycarbonate resin or ABS resin having excellent strength. Even if the water freezes and the volume increases, the transparent plate 60 may be prevented from being damaged.

It will be apparent to those skilled in the art that, although several embodiments above have been illustrated by way of example, the present invention may be embodied in many other forms without departing from the spirit and scope of the invention. Accordingly, the above-described embodiments are to be considered illustrative and not restrictive, and all implementations within the scope of the appended claims and their equivalents are intended to be included within the scope of the present invention.

1: Freeze Water Meter
10: lower outer shell
20: water flow generator
30: reduction gear unit
40:
50: transparent plate
60: upper outer shell
70: first freeze protection elastic deformation member
80: second freezing elastic deformation member

Claims (5)

An inlet pipe connected to one side and an outlet pipe connected to the other side of the lower outer shell body having a receiving space formed therein;
A water flow generator installed at a lower portion of the accommodating space of the lower outer shell and rotating the impeller while tap water introduced from the inlet pipe enters through the inlet hole and exits the outlet pipe through the outlet hole;
A reduction gear unit installed in an upper portion of the water flow generating unit in the accommodation space of the lower outer shell body and having a multi-stage reduction gear interlocked with an impeller of the water flow generating unit;
A display unit installed at an upper side of the reduction gear unit and interlocked with the deceleration rotation of the reduction gear unit to display a flow rate between the display panel and the metering needle and to fill glycerin around the display panel;
A transparent plate laminated on the display unit to protect the display panel and to maintain the airtightness of the glycerin;
An upper outer shell body coupled to the lower outer shell and holding the transparent plate and having an opening and closing cover at an upper portion thereof;
A first freeze protection elastic deformation member interposed between the lower outer shell and the water flow generating portion; And
And a second freezing elastic deformation member interposed between the water flow generating portion and the reduction gear portion,
The first freeze-proof elastic deformation member is formed integrally with the convex ring protrusion on the upper portion of the elastic plate,
The second freeze protection elastic deformation member is formed in the center of the disk-shaped tube through which the through-hole is formed so that the impeller penetrates and filled with air or fluid therein,
The transparent plate is a freeze-prevention water meter made of polycarbonate (PC) resin or ABS (Acrylonitrile Butadiene Styrene) resin having excellent strength. The method according to claim 1,
The lower outer shell body is freezing water meter, characterized in that formed in a cylindrical or jar shape. delete delete delete

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