KR101006860B1 - Cold and hot water purifier - Google Patents

Abstract

The present invention relates to a cold and hot water purifier, and more specifically, the water storage tank and the cold water tank are integrally formed so that no water leakage occurs, and the heated water introduced into the hot water tank does not flow back into the water storage tank, and the overpressure of the hot water tank (過 壓) relates to cold and hot water purifiers capable of evacuating water to the storage tank.

The cold / hot water purifier according to the present invention includes a filter for purifying water; A storage tank capable of storing water purified by a filter and having an opening and an outlet formed on a lower surface thereof so that the stored water can be discharged; A cold water tank which is integrally formed with the water storage tank and connected to the water storage tank below the opening so that water discharged through the opening is introduced; A hot water tank connected to the outlet by a connecting pipe so that water discharged through the outlet is introduced and configured to heat and discharge the introduced water; And a backflow prevention means formed between the outlet and the connection pipe so that the water heated in the hot water tank does not flow back into the water storage tank.

Water Purifier, Hot Water Tank, Backflow, Pressure

Description

Cold and Hot Water Purifier {COLD AND HOT WATER PURIFIER}

The present invention relates to a cold and hot water purifier, and more specifically, the water storage tank and the cold water tank are integrally formed so that no water leakage occurs, and the heated water introduced into the hot water tank does not flow back into the water storage tank, and the overpressure of the hot water tank (過 壓) relates to cold and hot water purifiers capable of evacuating water to the storage tank.

In general, the cold and hot water purifier comprises a filter for purifying water, a reservoir tank for storing water purified by the filter, and a cold water tank and a hot water tank for cooling and heating the water flowing into and connected with the reservoir tank.

By the way, in the prior art, the storage tank was put on the upper portion of the cold water tank without tightening or the storage tank was pressurized to be fitted at the upper portion of the cold water tank. There was a problem that the water leaked in the inflow process or the water storage state in the reservoir tank, and even if the user is forced to fit the reservoir tank and cold water tank by applying an external force, the problem of leakage is because the coupling force is not firm. It was not solved.

And, in order to prevent the leakage is used to interpose the packing between the cold water tank and the water storage tank, but as described above simply put the water storage tank on the upper portion of the cold water tank or the method to force the fitting is limited in preventing leakage There was a limit that the binding force is greatly reduced if there is a frequent separation and assembly of the coupling method to be fitted.

Meanwhile, the water stored in the reservoir tank is discharged from the reservoir tank into the hot water tank to fill the hot water tank, and then fills the connection pipe connecting the hot water tank and the reservoir tank. In this state, when the hot water tank is heated by a heating means (for example, a pipe heater coupled to the hot water tank so as to be connected to the inside of the hot water tank), the pressure inside the hot water tank increases, and as the internal pressure increases, the hot water tank is heated. Water will flow back into the reservoir tank.

In this case, the temperature of the water stored in the reservoir tank is increased. In addition, since the water is discharged to the cold water tank, the cold water tank cools the water whose temperature has risen, resulting in an increase in power consumption of the cold water purifier.

The present invention devised to solve the above-described problem, an object of the present invention is to provide a cold water purifier that is formed integrally with the storage tank and the cold water tank to prevent leakage.

It is also an object of the present invention to provide a cold / hot water purifier in which heated water of a hot water tank does not flow back into a low water tank.

In addition, an object of the present invention is to provide a cold / hot water purifier capable of discharging pressure into the water storage tank during overpressure of the hot water tank.

In order to solve the above-mentioned problems, the cold / hot water purifier according to the present invention includes a filter for purifying water; A storage tank capable of storing water purified by a filter and having an opening and an outlet formed on a lower surface thereof so that the stored water can be discharged; A cold water tank which is integrally formed with the water storage tank and connected to the water storage tank below the opening so that water discharged through the opening is introduced; A hot water tank connected to the outlet by a connecting pipe so that water discharged through the outlet is introduced and configured to heat and discharge the introduced water; And a backflow prevention means formed between the outlet and the connection pipe so that the water heated in the hot water tank does not flow back into the water storage tank.

And a pressure for preventing the hot water tank from being overpressured by discharging the pressure inside the hot water tank into the water storage tank while the hot water tank and the water storage tank are closed by the backflow preventing means. Control means may be further included.

At this time, the backflow prevention means, the upper opening is coupled to the outlet, the lower opening is coupled to the connecting pipe; A locking body formed at an inner upper side of the body and having a circular opening and closing hole communicating with the upper opening at a center of an upper end thereof, and having a trumpet-shaped recess leading to the opening and closing hole at a lower end thereof; And an opening and closing ball provided in an inner space of the body formed under the recess, and floating along the recess with the buoyancy of water to be caught by the locking body to close the opening and closing ball.

In addition, the backflow prevention means is formed on the inner space of the body spaced upwardly from the lower opening to support the bottom of the opening and closing ball, the body by allowing the opening and closing ball to be spaced apart from the lower opening Spacer plate may be further included to prevent the open lower side of the.

Alternatively, the backflow prevention means, the body is located below the discharge port is formed integrally with the water storage tank, the lower opening is connected to the connecting pipe; A locking body formed at an inner upper side of the body and having a circular opening and closing hole communicating with the outlet at a center of an upper end thereof, and having a trumpet-shaped recess leading to the opening and closing hole at a lower portion thereof; And an opening and closing ball provided in the inner space of the body formed under the recess, and floating along the recess with the buoyancy of water to close the opening and closing hole while being caught by the locking body.

In addition, the backflow prevention means is formed on the inner space of the body spaced upwardly from the lower opening to support the bottom of the opening and closing ball, the body by allowing the opening and closing ball to be spaced apart from the lower opening Spacer plate may be further included to prevent the open lower side of the.

At this time, the pressure control means, is formed integrally with the body on one side of the body, is located below the auxiliary hole extending from the discharge port is formed integrally with the water storage tank, the inner lower space is the inner space of the body Auxiliary body in communication with; It is formed in the upper side of the auxiliary body, the hollow portion is formed inside, the upper locking portion is formed in the upper side of the hollow portion is formed in the upper locking hole so that the communication between the auxiliary hole and the hollow portion in the center of the upper locking portion, A ball receiving body having a lower locking hole formed at a lower side of the hollow part such that a lower locking hole is formed at the center of the lower locking part so as to communicate between the hollow part and a space below the inner side of the auxiliary body; It is provided to be caught in the lower locking portion in the hollow portion to close the lower locking hole, when the hot water tank is over-pressured by the pressure is caught by the upper locking portion does not close the upper locking hole Pressure control ball; may include.

In addition, one side and the other side of the bottom surface of the upper locking portion which is caught by the pressure control ball is formed to be different from each other while the bottom portion of the upper locking hole may be formed in an ellipse.

According to the present invention, since the water storage tank and the cold water tank are integrally formed, water leakage does not occur at all, and the conventionally required packing is also unnecessary.

In addition, the backflow preventing means prevents the backflow of water from the hot water tank to the water storage tank, so that even if the hot water tank is heated, the water stored in the water storage tank is not heated, thereby increasing the power consumption in the cold water tank. Do not.

In addition, the backflow prevention means is made of a non-power-operated structure because the opening and closing ball rises (floating) by the buoyancy of the water to block the backflow of water, and thus can block the backflow of water without a separate power consumption.

In addition, since the pressure control means is further included, the hot water tank is not overpressured by a predetermined pressure or more, thereby preventing a problem such as component damage due to the overpressure of the hot water tank. And this pressure control means also has the advantage of operating without power because it includes a pressure control ball to rise by the pressure of the hot water tank.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like reference numerals denote the same members or the same geometrical features having the same function.

1 is a perspective view of a cold / hot water purifier according to an embodiment of the present invention, FIG. 2 is a sectional view of the cold / hot water purifier shown in FIG. 1, FIG. 3 is a sectional view showing another example of the backflow prevention means shown in FIG. 3 is a cross-sectional view illustrating a state in which the pressure control means is further included in the cold / hot water purifier shown in FIG. 3.

As shown in Figure 1 to 4, the cold and hot water purifier filter 10, the water storage tank 20, cold water tank 40, hot water tank 50, refrigeration compressor (60), heat sink 70 , A condenser 80, and a water purifier body 90 accommodating all of them.

Here, the filter 10, the refrigeration compressor (60), the heat sink (70), the condenser (80) are generally not particularly limited as those applied to cold and hot water purifiers, and detailed description thereof will be omitted herein. Only the reservoir tank 20, the cold water tank 40, and the hot water tank 50 will be described.

The reservoir tank 20 serves to supply the cold water tank 40 and the hot water tank 50 after storing the water purified by the filter 10. Storage tank 20 may be made of a variety of materials, preferably made of a synthetic resin material, the shape of the rectangular, square, oval, circular, and various other shapes are possible. Particularly, if it is made of a square, there is an advantage that a large amount of storage space can be secured compared to a round or oval shape.

The water storage tank 20 is a cold water tank 40 is connected to the cold water tank 40 and the hot water tank 50 in a state in which water is separated, respectively, as shown in Figures 2 to 4 It is preferred to be divided into one reservoir (not shown) and a second reservoir (not shown) to which the hot water tank 50 is connected.

In this case, an opening 21 is formed at one side of the lower surface of the water storage tank 20, that is, at the lower side of the first reservoir portion, and an outlet 22 is formed at the other side of the lower surface of the water storage tank 20, that is, at the lower side of the second reservoir portion. Is formed. In addition, the cold water tank 40 is connected to the opening 21 formed at the lower side of the first reservoir, and the connection pipe 30 coupled to the hot water tank 50 at the outlet 22 formed at the lower side of the second reservoir. ) Is connected.

The cold water tank 40 serves to cool and discharge the water flowing from the water storage tank 20, and is disposed below the opening 21, and is integrally formed and connected to the water storage tank 20. The storage tank 20 and the cold water tank 40 may be injection molded of a synthetic resin material to be integrally formed.

Since the water storage tank 20 and the cold water tank 40 are integrally formed as described above, no leakage occurs in the process of discharging water stored in the water storage tank 20 to the cold water tank 40 through the opening 21.

The cold water tank 40 may be coupled to the refrigerant pipe 41 as a cooling means and the heat insulating material 42 as a heat insulating means. In addition, a cold water discharge port 43 through which water cooled inside is discharged is formed on the bottom surface.

2 to 4, the refrigerant pipe 41 coupled to the cold water tank 40 serves to cool the water stored in the cold water tank 40, the outside of the cold water tank 40 It is wound around the frame several times and fixed. That is, in one embodiment of the present invention is to apply an indirect cooling method. This indirect cooling method has the advantage of less concern about freezing and easier to clean the inside of the cold water tank than the direct cooling method.

The heat insulating material 42 is installed to surround the outer surfaces of the coolant pipe 41 and the cold water tank 40 to prevent heat from penetrating from the outside, thereby maintaining the cooling state of the cold water tank 40. The heat insulating material 42 may be formed in a cylindrical shape, but has a space into which the cold water tank 40 and the coolant pipe 41 may be inserted, and thus the cold water tank 40 in which the coolant pipe 41 is wound on the outside may be fitted and coupled thereto. have.

The heat insulating material 42 is effective to prevent condensation so as not to create a space between the cold water tank 40 when wrapping the cold water tank (40). To this end, the lower portion of the cold water tank 40 in which the coolant pipe 41 is wound has a diameter smaller than that of the remaining portion where the coolant pipe 41 is not wound, so that the coolant pipe 41 is connected to the cold water tank 40. In the wound state, it is preferable that the cold water tank 40 has an outer surface of the same diameter as a whole without protruding or recessed portions. That is, it is preferable that the cold water tank 40 in which the coolant pipe 41 is wound has a cylindrical shape as a whole. In this case, even if the cylindrical insulator 42 is pressed upward from the bottom of the cold water tank 40, the space is generated between the cold water tank 40 and the heat insulator 42 even when the cold water tank 40 is inserted into the heat insulator 42. You will not. This makes it possible to prevent condensation more efficiently than conventional cold water tanks in which space is generated. In addition, there is an advantage that the heat insulating material 42 can also be manufactured and used in an integral cylindrical shape.

The hot water tank 50, as shown in Figures 2 and 4, comprises a main body 51, a lid 52, the heating means 55, as described above made of the storage tank 20 2 is connected to the connection pipe 30 to the bottom of the reservoir receives water.

The main body 51 is made of a cylindrical metal material having an upper opening and an inner reservoir space, and heating means 55 such as a pipe heater is provided therein. The heating means 55 is mounted on the lid 52 so that when the lid 52 closes the main body 51, the heating means 55 is positioned inside the main body 51 to heat the water.

The lid 52 is coupled to the main body 51 to cover the upper opening of the main body 51, and may be sealed by curling, welding, or the like, and separated in consideration of washing of the main body 51. It may be combined into a possible structure. As an example of a detachable structure, FIG. 2 illustrates an example in which the coupling member 53 is formed on the lid 52 and the main body 51 to be screwed together. In this case, the coupling member 53 serves to detachably attach the lid 52 to the main body 51, and includes a first protrusion member 53a and a second protrusion member 53b.

Here, the first protruding member 53a is fixed to surround the upper edge of the outer edge of the main body 51 to form a single body, and a thread (not shown) is formed on the outer edge. In addition, the second protrusion member 53b is fixed to surround the outer edge of the lid 52 to form an integrated body. A screw groove (not shown) corresponding to the thread of the first protrusion member 53a is formed on the inner surface of the second protrusion member 53b. Is formed. Therefore, the first protrusion member 53a is screwed to the second protrusion member 53b, whereby the main body 51 and the lid 52 can be detachably coupled.

On the other hand, it is preferable that the coupling member 53 further includes an annular packing 56 interposed between the first protrusion member 53a and the second protrusion member 53b. Coupling force between the first protrusion member 53a and the second protrusion member 53b may not only be firm, but water may also be prevented from leaking between the coupling parts.

The lid 52 has an inlet port (not shown) protruding upward, and the connection pipe 30 is connected to the inlet port so that water supplied from the water storage tank 20 is introduced into the body 51 through the inlet port. It is coming in.

Discharge pipe 54 is a pipe for discharging the water stored in the main body 51 of the hot water tank 50 to the outside to the outside, and is coupled to the lid 52 and connects the inside and the outside of the main body 51. . And the water heated by the heating means 55 in the main body 51 is discharged upwards.

The connection pipe 30 connecting the water storage tank 20 and the hot water tank 50 is connected to the inlet of the hot water tank 50, and the other end thereof is connected to the backflow prevention means 100 which will be described later. And the backflow prevention means 100 is connected to the outlet 22 formed in the lower portion of the second reservoir of the reservoir tank 20 to allow the inflow of water, and eventually the storage tank 20 and the hot water tank by the connection pipe 30 50 are interconnected.

On the other hand, when water is heated in the hot water tank 50, a phenomenon in which high temperature water flows back toward the water storage tank 20 may occur. When the hot water flows backward, the temperature of the water in the water storage tank 20 increases. .

Of course, although the interior of the reservoir tank 20 is divided into the first reservoir portion and the second reservoir portion, when the water in the reservoir tank 20 is stored beyond the water system of the first reservoir portion and the second reservoir portion The water is not separated and remains mixed.

Accordingly, when the hot water flows back from the hot water tank 50, the temperature of the water in the water storage tank 20 as a whole increases, and since the water is supplied to the cold water tank 40 in a state where the temperature rises to some extent, the cold water It takes a long time to cool the water in the tank 40, there is a problem that the power consumption for cooling increases.

Therefore, it is preferable that the backflow prevention means 100 is formed between the connection pipe 30 and the outlet 22 so that hot water flows back from the hot water tank 50 to the water storage tank 20.

As an example of the backflow prevention means 100, in Figure 2 consists of a body 110, a locking body 120 formed in the interior of the body 110, and the opening and closing ball 130 provided in the interior of the body 110 An example is presented.

In this example, the body 110 is manufactured in a separate configuration is coupled to the outlet 22 of the connection pipe 30 and the reservoir tank 20. Specifically, the body 110 has openings 113 and 114 formed at upper and lower sides thereof, the upper opening 113 is coupled to the outlet 22, and the lower opening 114 is coupled to the connection pipe 30.

The catching body 120 is formed at the inner upper side of the body 110, and a circular opening and closing hole 121 is formed in communication with the outlet 22 at the center of the upper end thereof, and has a trumpet shape leading to the opening and closing hole 121 at the lower portion thereof. A recess 122 is formed. In addition, since the locking body 120 is formed, an inner space 111 of the body 110 is provided below the recess 122, and the inner space 111 is discharged from the opening 22 through the opening and closing hole 121. Communicate. In addition, the inner space 111 of the body 110 communicates with the inside of the connection pipe 30 while passing through the lower opening 114 downward.

The opening and closing ball 130 is provided in the internal space 111 of the body 110. Opening and closing ball 130 is configured to rise (floating) by buoyancy of water. The water stored in the reservoir tank 20 is discharged through the outlet 22 and introduced into the hot water tank 50. After the hot water tank 50 is filled with water, the connection pipe 30 is filled inside, and then the water is filled into the inside of the body 110. At this time, the opening and closing ball 130 is floated by the buoyancy of the water to be filled, and enters the recess 122 while injured. And while continuing to rise along the recess 122 is eventually caught on the bottom of the upper end of the locking body 120, thereby closing the opening and closing hole 121. As the opening and closing hole is blocked, the inflow of water from the water storage tank 20 to the body 110 is blocked, and the heated water does not flow back to the water storage tank 20 even when the hot water tank 50 is heated to increase the internal pressure. .

On the other hand, when the water level of the hot water tank 50 is discharged to the outside to lower the level of water filled in the body 110, the opening and closing ball 130 is lowered to open the opening and closing hole 121. When the opening and closing hole 121 is opened, the water in the water storage tank 20 is supplied into the hot water tank 50 again. At this time, when the opening and closing ball 130 closes or blocks a portion of the lower opening 114, the water storage tank ( Inflow of water into the hot water tank 50 from the 20 may not be smooth. Therefore, the spacer plate 140 may be further included in the internal space 111 of the body 110.

The spacer plate 140 is formed at a position spaced upwardly from the lower opening 114 of the body 110 in the interior space 111 of the body 110 and supports the bottom surface of the opening and closing ball 130. Support. That is, the opening and closing ball 130 is no longer lowered so as to stay in a position spaced apart from the lower opening 114. Accordingly, the opening and closing ball 130 is supported by the spacer plate 140 so as not to block or close the lower opening 114. Since the spacer plate 140 is formed on the inner space 111 of the body 110, a space is formed between the inner wall and the inner wall of the body 110, and water flows in and out smoothly through the space. Can be done.

3 shows another example of the non-return means 100.

In this example, as in the above-described example, the non-return means 100 includes the body 110, the locking body 120, and the opening / closing ball 130. And, the spacer plate 140 may be further included.

However, the body 110 is located below the outlet 22, there is a difference from the above example in that it is formed integrally with the water storage tank (20). The body 110 and the reservoir tank 20 in this example may be injection molded integrally with a synthetic resin material. Except for this difference, it is not different from the above-described example and is replaced by the description of the above-described example.

On the other hand, the locking body 120 may be formed integrally with the body 110 in the interior of the body 110, the locking body 120 may be manufactured separately and coupled to the inside of the body 110. In the latter case, as shown as an example of a specific coupling structure, the stepped portion 112 is formed on the upper edge of the body 110, and the locking body 120 is caught by the stepped portion 112, and then inside the body 110. Examples of structures to be joined are shown. That is, it can be inserted into the body 110 through the outlet 22. At this time, the internal space 111 of the body 110 is preferably coupled to the body 110 at the edge portion of the locking body 120 to be in communication with the outlet 22 only through the opening and closing hole 121.

The cold / hot water purifier 1 of the above-described embodiment may further include a pressure control means.

Pressure control means is a state between the hot water tank 50 and the water storage tank 20 is closed by the backflow prevention means 100, that is, in the example of the above-described backflow prevention means 100, the opening and closing ball 130 is opened and closed hole It becomes a means for preventing the hot water tank 50 from being overpressured in the state in which 121 is closed.

The hot water tank 50 may be equipped with the above-described heating means 55 and a temperature sensor (not shown) may be provided at one side of the hot water tank 50 to control the operation of the heating means 55. Thus, the water in the hot water tank 50 is heated by the heating means 55, the operation of the heating means 55 is stopped by the temperature sensor when heated above a predetermined temperature.

At this time, the internal pressure of the hot water tank 50 and the connection pipe 30 is increased while the inside of the hot water tank 50 is heated. When the internal pressure is higher than a predetermined pressure, that is, the overpressure is applied to the hot water tank 50. ) And a connection part of the connection pipe 30, the connection portion of the connection pipe 30 and the body 110 may cause a problem such as leakage due to overpressure, damage to the internal configuration.

Therefore, even before the operation of the heating means 55 is stopped by the temperature sensor, it is preferable that the pressure inside the hot water tank 50 does not exceed a certain allowable pressure.

2 and 3, the pressure control means may include a pressure discharge hose (not shown) having one end connected to one side of the hot water tank 50, for example, the lid 52. As shown in FIG. When the other end of the pressure discharge hose is positioned at a predetermined height or more from the position of the hot water tank 50 to be exposed to the external space of the hot water tank 50, the pressure inside the hot water tank 50 may escape through the pressure discharge hose. have. At this time, the inner diameter of the pressure discharge hose or the height from the hot water tank 50 of the pressure discharge hose may be determined in consideration of the preferable holding pressure inside the hot water tank (50).

In FIG. 4, another example of the pressure control means is shown, and the pressure control means 200 of the present example causes the pressure to be discharged into the water storage tank 20 when the inside of the hot water tank 50 exceeds a predetermined pressure.

The pressure control means 200 of the present example includes an auxiliary body 210, a ball receptor 220, and a pressure control ball 230.

The auxiliary body 210 is formed integrally with the body 110 at one side of the body 110. In addition, an auxiliary hole 23 extending from the outlet 22 is formed in the lower surface of the water storage tank 20, and the auxiliary body 210 is located below the auxiliary hole 23 and integrally with the water storage tank 20. Is formed. That is, the reservoir tank 20, the body 110, and the auxiliary body 210 are integrally formed, all of which can be manufactured by injection molding of synthetic resin material.

The auxiliary body 210 has a ball receptor 220 to be described later on the inner upper side, a space 211 is formed inside the auxiliary body 210 to be a lower portion of the ball receptor 220. In addition, the inner lower space 211 communicates with the internal space 111 of the body 110 described above, and the pressure of the hot water tank 50 passes through the internal space 111 of the body 110 while the auxiliary body ( It is delivered to the inner lower space 211 of 210.

The ball receptor 220 is formed on the inner upper side of the auxiliary body 210. The ball receptor 220 has a hollow portion 221 formed therein, and an upper locking portion 222 is formed at an upper side of the hollow portion 221, and an upper locking hole 223 is formed at the center of the upper locking portion 222. Is formed. The upper locking hole 223 communicates with the auxiliary hole 23. The lower locking hole 225 is formed in the center of the lower locking part 224 while the lower locking part 224 is formed below the hollow part 221.

As the ball receptor 220 is formed, the inner lower space 211 of the auxiliary body 210 communicates with the hollow portion 221 through the lower locking hole 225, and the hollow portion 221 has the upper locking hole 223. In communication with the auxiliary hole (23).

The pressure control ball 230 is provided in the hollow portion 221. Specifically, the pressure control ball 230 is provided to be caught by the lower locking portion 224 in the hollow portion 221 to close the lower locking hole 225. Pressure control ball 230 has a specific gravity greater than the specific gravity of the water to maintain the closed state of the lower locking hole 225 without injury even if the water rises through the lower locking hole 225.

In this state, when the internal pressure of the hot water tank 50 is overpressured by a predetermined pressure, the pressure rises. Therefore, the pressure control ball 230 is made of a weight that rises by the pressure in the hot water tank 50 inside the over-pressure state.

Until the pressure control ball 230 rises and is immediately caught by the upper locking ball, the state between the lower locking hole 225 and the upper locking hole 223 is not closed, and the pressure is stored through the upper locking hole 223. The tank 20 may be discharged into the inside. In this process, if the pressure drops again below a certain pressure, the pressure control ball 230 is lowered to be caught by the lower locking portion 224.

However, the pressure control ball 230 continues to rise in a state in which the overpressure state continues somewhat, and eventually becomes caught by the upper locking portion 222. In this case, since the upper locking hole 223 is not closed by the pressure control ball 230, the inside of the hot water tank 50 and the connection pipe 30 through the gap between the upper locking hole 223 and the pressure control ball 230. The pressure inside the outlet may be discharged into the water storage tank 20. And when the pressure drops in accordance with the pressure discharge pressure control ball 230 is lowered again.

On the other hand, the upper locking portion 222 may be made in various shapes so that the upper locking hole 223 is not closed in the state that the pressure control ball 230 is caught by the upper locking portion 222.

As an example, the bottom portion of the upper locking hole 223 is elliptical while the one side 222a and the other side 222b of the bottom of the upper locking portion 222 which are caught by contact with the pressure control ball 230 are formed to have different heights. An example consisting of:

When this is formed, the pressure control ball 230 is different from the height of the one side (222a) and the other side (222b) to be in contact with the upper locking portion 222 when the pressure is caught on the upper locking portion 222, the pressure control ball The 230 is positioned somewhat deflected and is inserted into and caught by the upper locking hole 223. At this time, since the bottom of the upper locking hole 223 forms an inclined ellipse having one end 222a and the other side 222b as both ends of the long radius, the pressure control ball 230 and the bottom rim of the upper locking hole 223 are eventually formed. There is a gap formed in the upper locking hole 223 is not closed even when the pressure control ball 230 is caught in the upper locking portion 222.

On the other hand, the locking body 120 and the ball receptor 220 may be formed separately inside the body 110 and the auxiliary body 210, respectively, as shown, the locking body 120 and the ball receptor 220 May be integrally extended. And formed in the integral state formed in the upper edge of the body 110 and the upper edge of the auxiliary body 210, the step (112, 212) is formed to be caught on the step (112, 212) while the body 110 and auxiliary It may be coupled to the body 210. That is, it can be inserted into the body 110 and the auxiliary body 210 through the outlet 22 and the auxiliary hole 23.

1 is a perspective view of a cold / hot water purifier according to an embodiment of the present invention;

2 is a cross-sectional view of the cold and hot water purifier shown in FIG.

3 is a cross-sectional view showing another example of the non-return means shown in FIG.

4 is a cross-sectional view illustrating a state in which the pressure control means is further included in the cold / hot water purifier shown in FIG. 3.

Explanation of symbols used in the main part of the drawing

1: cold and hot water purifier 10: filter

20: reservoir tank 21: opening

22: outlet 23: auxiliary hole

30: connector 40: cold water tank

41: refrigerant pipe 42: heat insulating material

43: cold water outlet 50: hot water tank

51: body 52: lid

52a: inlet 53: coupling member

53a, 53b: protruding member 54: discharge pipe

55 heating means 56 packing

60: refrigeration compressor 70: heat sink

80: condenser 90: water purifier body

100: reverse flow prevention means 110: body

113: upper opening 114: lower opening

120: locking body 121: opening and closing hole

122: recess 130: opening and closing ball

140: spacer 200: pressure control means

210: auxiliary body 220: ball receptor

221: hollow portion 222: upper locking portion

223: upper locking hole 224: lower locking portion

225: lower locking hole 230: pressure control ball

Claims (8)

A filter for purifying water; A storage tank capable of storing water purified by a filter and having an opening and an outlet formed on a lower surface thereof so that the stored water can be discharged; A cold water tank formed integrally with the water storage tank and connected to the water storage tank below the opening so that water discharged through the opening is introduced, and cooling the introduced water and then discharging the water; A hot water tank connected to the outlet by a connecting pipe so that water discharged through the outlet is introduced and configured to heat and discharge the introduced water; Backflow prevention means formed between the outlet and the connection pipe such that the water heated in the hot water tank does not flow back into the water storage tank; And Pressure control means for preventing the hot water tank from being over-pressured by discharging the pressure inside the hot water tank into the water storage tank while the hot water tank and the water storage tank are closed by the backflow preventing means. Including; The pressure control means, The hollow part communicating with the water storage tank and the connecting pipe is formed therein, an upper locking part is formed while an upper locking part is formed above the hollow part, and a lower locking hole is formed while a lower locking part is formed below the hollow part. Receptor; And A pressure is provided in the hollow part to be hooked to the lower locking part to close the lower locking hole, and to rise by pressure when the hot water tank is overpressured to be caught by the upper locking part but not to close the upper locking hole. Cold and hot water purifier, characterized in that it comprises a control ball. delete The method of claim 1, wherein the backflow prevention means, A body having an upper opening coupled to the outlet and a lower opening coupled to the connector; A locking body formed at an inner upper side of the body and having a circular opening and closing hole communicating with the upper opening at a center of an upper end thereof, and having a trumpet-shaped recess leading to the opening and closing hole at a lower end thereof; And Cold and hot water purifier, characterized in that formed in the inner space of the body formed under the concave portion, the opening and closing ball to close the opening and closing hole while being caught by the locking body to rise along the concave portion by buoyancy of water; . The method of claim 3, wherein the backflow prevention means, It is formed on the inner space of the body spaced upwardly from the lower opening to support the bottom surface of the opening and closing ball, so that the opening and closing ball stays spaced apart from the lower opening so that the open lower side of the body is not closed. Cold and hot water purifier, characterized in that it further comprises a spacer plate. The method of claim 1, wherein the backflow prevention means, A body positioned below the outlet and integrally formed with the water storage tank, and having a lower opening connected to the connection pipe; A locking body formed at an inner upper side of the body and having a circular opening and closing hole communicating with the outlet at a center of an upper end thereof, and having a trumpet-shaped recess leading to the opening and closing hole at a lower portion thereof; And Cold and hot water purifier, characterized in that formed in the inner space of the body formed under the concave portion, the opening and closing ball to close the opening and closing hole while being caught by the locking body to rise along the concave portion by buoyancy of water; . The method of claim 5, wherein the backflow prevention means, It is formed on the inner space of the body spaced upwardly from the lower opening to support the bottom surface of the opening and closing ball, so that the opening and closing ball stays spaced apart from the lower opening so that the open lower side of the body is not closed. Cold and hot water purifier, characterized in that it further comprises a separation plate. The method according to claim 5, wherein the pressure control means, One side of the body is formed integrally with the body, located in the lower portion of the auxiliary hole extending from the discharge port is formed integrally with the water storage tank, the interior of the lower side of the auxiliary body communicating with the internal space of the body; Made, including The ball receptor is formed on the inner upper side of the auxiliary body, The upper locking hole is formed to communicate between the auxiliary hole and the hollow portion, The lower catching hole is cold and hot water purifier, characterized in that the communication between the hollow portion and the space inside the auxiliary body lower side. The method of claim 7, Cold water purifier, characterized in that the bottom side of the upper engaging hole is formed in an ellipse while one side and the other side of the lower surface of the upper locking portion to be caught in contact with the pressure control ball is formed different from each other.

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