KR100966852B1 - Anti-freezing burst device of water pipe - Google Patents

Abstract

The present invention relates to a freeze protection device of a water pipe, the housing 100 and the housing 100 is provided with an inlet 102 and an outlet 104 on the ground water pipe and the exhaust outlet 106 is provided at the bottom. Is connected to the temperature sensing unit 150 protruding to the outside of the corrugated pipe 140 is contracted and expanded in the vertical direction in accordance with the external temperature change in the interior of the housing 100, and is installed on the lower surface of the corrugated pipe 140 Opening and closing valve 130 and the water inlet pipe 160 connected to one end of the water inlet pipe 160 to move up and down by the contraction of the corrugated pipe 140 to allow the water in the housing 100 to flow into the water inlet pipe 160 It is installed and includes a water discharge means 190 to discharge the water to the exhaust port 106 of the housing 100 by the cylinder operation by the amount of water and the force of the water introduced into the water inlet pipe 160. Therefore, according to the present invention, by operating the hydraulic cylinder with a small amount of water flowing out according to the external temperature change and the force of the water, it is possible to effectively prevent freezing with the water discharged through the operation of the cylinder, and also, the hydraulic cylinder By changing the capacity of the bay, it is possible to secure as much water as possible to prevent freezing at any water pipe size or water pressure, and the amount of discharged water can be controlled to have more precise control of the outflow timing of water.

Freeze protection, shrinkage, expansion, opening and closing, cylinder, pressure

Description

Freeze protection of water pipes {ANTI-FREEZING BURST DEVICE OF WATER PIPE}

The present invention relates to preventing the water pipes connected to the water taps to be freeze due to the temperature drop during the winter season, and more specifically, to freeze the freezing of the water pipes by constantly discharging a small amount of water inside the water pipes according to the external temperature change. It relates to a device that can be prevented.

In general, when water freezes in winter, the volume increases, and when water inside the water pipe is frozen due to the low temperature of the winter, cracks in the water pipe due to the volume increase. Therefore, various apparatuses and methods have been used to prevent this from before.

Since most of the water pipes are buried underground, the buried parts of the water pipes hardly fall below the freezing point of water even in winter. Therefore, most water pipe freeze protection devices are intended for water pipes exposed to the ground.

The simplest way to prevent freezing of water pipes is to wrap the exposed parts with insulation such as styrofoam. This method is widely used because it does not require special equipment and is advantageous in terms of cost, but it is not easy to be damaged due to weather or children's mischief because it is less durable due to the material properties of the insulation. There is no shortcoming because the temperature is very low and eventually freezes.

Accordingly, the present applicant is a technique for preventing the freezing of the water pipes by discharging a small amount of water inside the water pipes when the outside temperature decreases by the opening and closing operation of the opening and closing means interlocked in accordance with the contraction and expansion of the corrugated pipe to solve such problems. As of March 21, 2003, registered in the Utility Model Registration No. 20-0309420 registered under the designation of "freeze protection device", and also in March 14, 2006 "freeze protection device" It is registered in patent registration number 10-0716544 under the name of the invention.

However, the pre-registered freeze protection device having a structure for discharging water through a gas force and a spring inside the corrugated pipe has various disadvantages such as restriction of the size of the corrugated pipe and deformation of the corrugated pipe due to water pressure. In addition, large water pipes or industrial water pipes are large in size, and the outflow of water to prevent freezing waves must be greatly increased. In other words, both the size of the corrugated pipe and the valve spring, etc. should be designed large, there was a problem in that the difficulty in terms of processing or installation cost.

Accordingly, the present invention provides a freeze protection device for a water pipe that can prevent freezing with water discharged through the operation of the cylinder by operating the hydraulic cylinder with a small amount of water flowing out according to the external temperature change and the force of the water. It is for that purpose.

In addition, in the present invention, it is possible to secure as much water as possible to prevent freezing at any water pipe size or water pressure by changing the capacity of the hydraulic cylinder only, and more precisely when the amount of discharged water is discharged. It is an object of the present invention to provide a freeze protection device for water pipes that can be controlled.

In order to achieve the above object, the present invention, in the freeze protection device of the water pipe, a housing having an inlet and an outlet on the ground water pipe, the exhaust port is provided in the lower portion, the temperature sensing unit protruding out of the housing It is connected to the corrugated pipe that contracts and expands in the vertical direction according to the temperature change of the inside of the housing, and is installed on the lower surface of the corrugated pipe and lifted and moved by the contraction of the corrugated pipe so that the water in the housing can flow into the water inlet pipe of the lower part. A water pipe including an on / off valve connected to one end of the water inlet pipe and a water discharge means for discharging the water to the exhaust port of the housing by a cylinder operation by the amount of water introduced into the interior through the water inlet pipe and the force of the water; Provides a freeze protection device.

And preferably, the corrugated pipe is filled with a substance which shrinks when the temperature decreases and expands when the temperature rises.

In addition, the water discharge means, the cylinder body is provided with an inner space and the water inlet pipe is connected to the inner space, the piston valve sliding through the interior of the cylinder body and one end through the cylinder body to open and close the exhaust port, It is composed of a spring located between the upper surface of the piston valve and the inside of the cylinder body to assist the return of the elevated piston valve, more preferably the water inlet pipe is located in the lower space of the piston valve partitioning the interior of the cylinder body When the piston valve rises, the air connection pipe is installed in the inner space of the cylinder body corresponding to the upper side of the piston valve so that the air pressure can be discharged to the outside. The inside is divided based on the piston valve.

Preferably, the water inlet pipe leading from the on / off valve is branched in a direction opposite to the connection direction of the water discharge means and is provided with a water discharge pipe connected to the exhaust port. On the water discharge pipe, water acting as an operating pressure of the water discharge means is installed. It has a configuration in which a pressure relief valve is installed to be discharged to the outside to close the exhaust port.

As described above, according to the freeze protection device of the water pipe of the present invention, by operating the hydraulic cylinder with a small amount of water flowing out according to the external temperature change and the force of the water, the freeze with the water discharged through the operation of the cylinder effectively Also, by replacing the capacity of the hydraulic cylinder only, it is possible to secure as much water as possible to prevent freezing at any water pipe size or water pressure, and more precisely by controlling the amount of discharged water. It is possible to control the outflow time of water.

Hereinafter, the operating principle of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intentions or customs of the user, the operator, and the like. Therefore, the definition should be made based on the contents throughout the specification.

1 is a configuration diagram of a freeze protection device of the water pipe according to an embodiment of the present invention, Figure 2 is a state diagram of the freeze protection device of the water pipe according to an embodiment of the present invention.

The freeze protection device of the water pipe according to the present invention shown in Figure 1, the housing 100 is largely installed on the water pipe on the ground, and installed inside the housing 100, contraction and expansion according to the temperature change of the outside Water discharge means 190 to allow the water discharged from the housing 100 through the water flowing through the operation of the corrugated pipe 140 and the opening and closing valve 130 and the opening and closing valve 130 to be moved up and down by the corrugated pipe 140 It is composed of

Here, the housing 100 has a substantially rectangular or cylindrical shape, and is formed on the water pipe by forming an inlet portion 102 and an outlet 104 that are open in both horizontal directions.

Preferably, a faucet (not shown) is connected to the outlet 104 side.

The inside of the housing 110 forms a space, and a lower portion of the tubular exhaust port 106 communicating with the outside is formed.

In addition, the first support 110 is installed vertically through fastening means such as bolts on the inner upper side of the housing 100, and the first flat opening and closing plate 112 is horizontally disposed at the lower end of the first support 110. It is installed, the water inlet pipe 160 described below is penetrated and installed in the center of the first opening and closing plate 112.

And on the upper side of the first opening and closing plate 112, the opening and closing valve 130 is installed including a spring 132 to open and close the inlet of the water inlet pipe 160 installed through the lifting operation, the opening and closing valve 130 At the top of the corrugated pipe 140 is installed to be interlocked together.

Corrugated pipe 130 itself is to repeat the expansion and contraction in the vertical direction in accordance with the external temperature conversion, there may be provided with a variety of materials that shrink and expand in accordance with the temperature change, preferably in the fall of temperature As the volume shrinks and the temperature rises, the refrigerant gas expands. The temperature sensing unit 150 made of a cooling fin is partially protruded to an upper end of the housing 100 so as to directly contact the refrigerant gas.

On the other hand, the water inlet pipe 160 leading from the first opening and closing plate 112 is provided in the form of a pipe connected to the water discharge means 190.

Water discharge means 190, the cylinder body 191 is provided with an inner space, the sliding movement along the inside of the cylinder body 191 and one end penetrates the cylinder body 191 to open and close the exhaust port 106 Piston valve 192 is installed. And a spring 194 positioned between the upper surface of the piston valve 192 and the inside of the cylinder body 191 to assist in returning the raised piston valve 192 to its original position.

Here, the cylinder body 191 is supported by the second support 120 which is fixed by the fastening means such as a bolt from the lower portion of the housing 100, the exhaust port 106 through which the end side passes on the second support 120 The second opening and closing plate 122 is installed in the horizontal direction to support it. In addition, the outer periphery of the piston valve 192 is further provided with an airtight ring 193 to partition the inside of the cylinder body 191 up and down space based on the piston valve 192.

In addition, the water inlet pipe 160 is connected to the lower space of the piston valve 192 partitioning the inside of the cylinder body 191, and when the piston valve 192 is raised, the piston valve ( The air connection tube 170 is installed in the sealed inner space of the cylinder body 191 corresponding to the upper side of the 192, and one end of the air connection tube 170 is joined with the water discharge pipe 180 described below. It is connected to and installed on the exhaust port 106.

In addition, the water inlet pipe 160 extending downward from the first opening and closing plate 112 is branched in a direction opposite to the connection direction of the water discharge stage 190 so that the water discharge pipe 180 communicates with the water discharge pipe ( 180 is joined to the air connection pipe 170 is installed on the exhaust port 106.

Mule inlet pipe 160 and the water discharge pipe 180 of the same diameter of the tube shape is preferable.

On the water discharge pipe 180, water in the lower space of the piston valve 192, which acted as the operating pressure of the piston valve 192 while compressing the spring 194, is discharged to the outside to close the exhaust port 106 that is open. A pressure relief valve 182 is installed to allow it.

The pressure relief valve 182 is preferably installed in the same direction on the water discharge pipe 180 adjacent to the branch of the water inlet pipe 160 and the water discharge pipe 180, more preferably in order to speed up the flow rate flow It has a smaller diameter than the water discharge pipe 180.

Hereinafter, the state of use of the freeze protection device of the water pipe configured as described above is as follows.

Referring to FIG. 2, first, when the external temperature is the image range, the water inlet pipe on the first opening / closing plate 112 is compressed by the opening / closing valve 130 through the expanded corrugated pipe 140 and the spring 132. 160) is blocked.

On the contrary, when the temperature drops below the set temperature, for example, when the temperature drops below about 1 ° C., the temperature sensing unit 150 protruding to the outside of the housing 100 senses the outside temperature, and the reduced temperature. It is delivered directly to the material in the corrugated pipe (130).

The material in the corrugated pipe 130 contracts as the temperature decreases, thereby contracting the entire corrugated pipe 130.

Therefore, the rise of the corrugated pipe 140 leads to the rise of the opening / closing valve 130, whereby water filled in the housing 100 is released by the release of the opening / closing valve 130 which is blocking the inlet of the water inlet pipe 160. Inlet is made to the tube (160).

Water introduced in this way is introduced into the cylinder body 191, which is the water discharge means 190 along the water inlet pipe (160).

At this time, the water flowing into the cylinder body 191 is filled into the lower space of the piston valve 192, the piston valve 192 is raised while compressing the spring 194 upwards according to the amount of water to be filled. As a result, the piston valve 192 leads to an increase according to the amount of water introduced, and the rise opens the inlet port of the exhaust port 106 installed on the second opening and closing plate 122 so that the filled water in the housing 100 is exhaust port ( Through 106) a certain amount of discharge is made.

Here, when the piston valve 192 is raised, the compressed air filled in the upper side of the piston valve 192, ie, the inner space of the cylinder body 191, is discharged through the air connection pipe 170, so that the piston valve 192 can be raised. It is done.

As described above, the water is partially discharged through the exhaust port 106 of the housing 100 before the water charged in the water pipe is frozen, thereby preventing freezing of the water in advance.

On the other hand, when the outside temperature rises again, the corrugated pipe 130 is expanded, and in accordance with the expansion of the corrugated pipe 140, the on-off valve 132 compresses the spring 150 to block the inlet of the water inlet pipe 160. .

And when the further inflow of water into the cylinder body 191 is stopped, the piston valve 192 starts to descend by the restoring force of the spring 194, the water filled in the lower space of the cylinder body 191 is introduced into the water The reverse flow along the pipe 160 and the reversed water flows along the water discharge pipe 180 at a high flow rate while meeting the pressure relief valve 182, and then discharged through the exhaust port 106.

As a result, the piston valve 192 can be lowered, and the lowered piston valve 192 again blocks the inlet of the exhaust port 106 to block further water discharge to prevent water waste.

Therefore, the water pipe freeze protection device in the present invention, by controlling the amount of discharged water by the use of a hydraulic cylinder, which is a water discharge means, it is possible to control the outflow time of water more precisely, and moreover by changing the capacity of the cylinder body only It is a very useful invention that can secure enough water to prevent freezing even in the size and water pressure of water pipes.

As described above, the freeze protection apparatus of a water pipe according to the present invention is just one preferred embodiment, and the present invention is not limited to the above-described embodiment, and the gist of the present invention is as claimed in the following claims. Without departing from the scope of the present invention, any person having ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

1 is a block diagram of a freeze protection apparatus of a water pipe according to an embodiment of the present invention,

Figure 2 is a state diagram used in the freeze protection apparatus of the water pipe according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100 housing 102 inlet

104: discharge portion 106: exhaust port

110, 120: 1st, 2nd support 112, 122: 1st, 2nd opening and closing board

130: on-off valve 132, 194: spring

140: corrugated pipe 150: temperature sensing unit

160: water inlet pipe 170: air connection pipe

180: water discharge pipe 182: pressure relief valve

190: water discharge means 191: cylinder body

192: piston valve 193: hermetic ring

Claims (6)

In freeze protection device of water pipe, A housing having an inlet and an outlet on the ground water pipe and having an exhaust port at the bottom thereof; A corrugated pipe connected to a temperature sensing unit protruding to the outside of the housing and contracting and expanding in a vertical direction according to an external temperature change in the housing; An opening / closing valve installed on a lower surface of the corrugated pipe and moving up and down by contraction of the corrugated pipe to allow water in the housing to flow into a lower water inflow pipe; It is connected to one end of the water inlet pipe and includes a water discharge means for discharging the water to the exhaust port of the housing by the cylinder operation by the amount of water introduced into the interior through the water inlet pipe, the force of the water, The water discharge means, An inner space and a cylinder body to which the water inlet pipe is connected to the inner space; A piston valve slidably moving along the inside of the cylinder body and having one end penetrating the cylinder body to open and close the exhaust port; It is composed of a spring which is located between the upper surface of the piston valve and the inside of the cylinder body to help the home position of the raised piston valve, The water inlet pipe is located in the lower space of the piston valve for partitioning the inside of the cylinder body,  A freeze protection device of a water pipe, wherein an air connection pipe is connected to an inner space of the cylinder body corresponding to an upper side of the piston valve so that air pressure can be discharged to the outside when the piston valve rises. The method of claim 1, The corrugated pipe is freeze-resistant device of the water pipe that is contracted when the temperature decreases, the material is expanded when the temperature rises. delete delete The method of claim 1, The outer periphery of the piston valve is further provided with a hermetic ring to separate the inside of the cylinder body with respect to the piston valve freeze protection device of the water pipe. The method of claim 1, The water inlet pipe leading from the on-off valve is provided with a water discharge pipe branched in a direction opposite to the connection direction of the water discharge means and connected to the exhaust port. And a pressure releasing valve is installed on the water discharge pipe so that water acting as the operating pressure of the water discharge means is discharged to the outside to close the exhaust port.

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