KR20150100329A - Hot and Cold Water Dispenser - Google Patents

Abstract

The present invention provides a hot and cold water dispenser, comprising: a case to form the outer shape; a cold water tank accepted inside the case to store cold water; a hot water tank placed below the cold water tank to store hot water; a connection part joined to the bottom of the hot water tank to be connected to the inside of the hot water tank; a first connection pipe for connecting the cold water tank to the connection part to guide the water in the cold water tank to the hot water tank; and a drain pipe connected to the connection part to discharge the water stored in the cold water tank to the outside of the cold water tank.

Description

{Hot and Cold Water Dispenser}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold / hot water machine, and more particularly to a cold / hot water machine capable of discharging water contained in a hot water tank to the outside to empty the hot water tank.

In recent years, environmental pollution is getting worse due to rapid industrial development. Among them, water pollution reaches a serious level, and in many places such as home and public offices, water is treated with water and drinking with drinking water.

In general, a water heater or a cold / hot water system using living water is used as a device for treating water, and in a broad sense, means a device for supplying water to cold water or hot water by heating or cooling water. In a narrow sense, Means that the water is heated or cooled to supply it to cold water and hot water.

The cold / hot water system includes a cold water tank and a hot water tank separately for storing cold water and hot water separately, a cooling device for cooling water is provided in the cold water tank, and a heating device for heating water is provided in the hot water tank . The cold water tank and the hot water tank are connected to each other through a separate connection pipe, and the water supplied to the inner space of the cold water tank is supplied to the hot water tank through the connection pipe.

The present applicant has filed an application for a cold / hot water heater related to the present application with Korean Patent Application Publication No. 10-1016188.

The conventional cold water heater has difficulty in discharging water to the hot water tank and emptying the inside of the hot water tank.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a cold / hot water heater capable of discharging all water contained in a hot water tank to the outside to empty the hot water tank.

According to an aspect of the present invention, A cold water tank accommodated in the case and storing cold water; A hot water tank disposed below the cold water tank and storing hot water; A connection unit coupled to a lower surface of the hot water tank and connected to the inside of the hot water tank; A first connection pipe connecting the cold water tank and the connection unit to guide the water in the cold water tank to the hot water tank; And a drain pipe connected to the connection portion and discharging the water stored in the cold water tank to the outside of the cold water tank.

In addition, the connection unit may include a body that forms an outer appearance, a second connection pipe that connects the body to the hot water tank, a first engagement hole to which the first connection pipe is coupled, . ≪ / RTI >

In particular, the first engagement hole may be arranged higher than the second engagement hole.

Of course, the first engagement hole and the second engagement hole may be disposed on different surfaces of the body.

The first engagement hole and the second engagement hole may be arranged perpendicular to each other with respect to the body.

In particular, the second connection pipe may extend upward from the body toward the hot water tank and be coupled to the hot water tank.

The first connection pipe includes a first connection member extending from the cold water tank to below the lower surface of the hot water tank and a second connection member extending perpendicularly to the first connection member and extending to the connection portion can do.

Of course, the second connecting member can be positioned lower than the hot water tank.

The drain pipe may include a first drain member extending from the body and a second drain member vertically connected to the first drain member.

The first drain member and the second drain member may be located below the second connection member.

Further, one end of the drain pipe may be exposed to the outside of the case, and a valve may be provided at one end of the drain pipe to open and close the flow path of the drain pipe.

A cold water outlet pipe for discharging water to the outside of the cold water tank, and a hot water outlet pipe for discharging water to the outside of the hot water tank.

According to the present invention, a separate drain pipe for draining water from the hot water tank can be provided, so that the inside of the hot water tank can be quickly drained.

Further, according to the present invention, when the water in the hot water tank is discharged to the outside, there is no water that may remain in other parts, so that the cleaning and disinfection of the water heater / cooler can be cleaned. In particular, after the hot water tank is sterilized or disinfected with a detergent or the like, the water can be discharged to the hot water tank, thereby improving the hygiene problem of the user.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a cold / hot water heater according to the present invention; FIG.
Fig. 2 is a cross-sectional view taken along line AA in Fig. 1; Fig.
3 is a view showing a main part of the present invention.
Fig. 4 is a view showing a state in which Fig. 3 is viewed from another direction; Fig.
5 is a view showing a state in which the hot water tank is viewed from the bottom;
6 is a diagram specifically showing a connecting portion.
7 is a perspective view showing a structure in which an adapter is coupled to a cold water tank;
8 is a cross-sectional view of Fig.
9 is an exploded perspective view of Fig.
10 is a perspective view of the adapter;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

FIG. 1 is a view showing a cold / hot water generating machine according to the present invention, and FIG. 2 is a cross-sectional view taken along line A-A of FIG. This will be described below with reference to Figs. 1 and 2. Fig.

The cold / hot water generating machine according to the present invention includes a case 10 having a water tank 2 containing water and a tank 30, 90 storing water stored in the water tank 2. The water bottle 2 is seated on the upper surface of the case 10 so that water contained in the water bottle 2 is drawn into the case 10.

Of course, the present invention can also be configured such that the water heater is connected to an external water pipe rather than the water bottle 2 to supply water. The configuration for connecting to the external water pipe can be applied as it is when the water container 2 is replaced, so that the description of the related contents will be omitted.

In the case 10, a cold water tank 30 for maintaining the cooled state of the water contained in the water bottle 2 and a hot water tank 90 for maintaining the heated state are accommodated. Water can be cooled by the cooling device in the cold water tank 30, and water can be heated by the heater or the like in the hot water tank 90.

The case 10 may include a water intake coke 14 connected to the cold water tank 30 to supply cold water to a user or connected to the hot water tank 90 to supply hot water to a user. Of course, the water intake cock 14 is provided with two water intake water corks and water intake water corks for cold water, respectively. At this time, the water intake coke for cold water is connected to a cold water outlet pipe 31 for discharging water from the cold water tank 30 to the outside, and the hot water reception coke is connected to the hot water tank 90 for discharging water from the hot water tank 90 to the outside It is possible to connect to the water outlet pipe 92.

The user can obtain hot water or cold water by using individual levers 12 capable of opening and closing the respective intake coke 14. [ In other words, only one of the intake cock 14 and the lever 12 is shown in the drawing for convenience of illustration.

The cold water tank 30 and the hot water tank 90 are arranged vertically and the hot water tank 90 is positioned below the cold water tank 30. That is, it is preferable that the cold water tank 30 is disposed at a position higher than the hot water tank 90. A cooling device for cooling the water contained in the tank is provided around the cold water tank 30. A heating device for heating the water contained in the tank is provided around the warm water tank 90 so that the temperature of water contained in the tank Respectively.

At this time, the cooling device may include a compressor, an evaporator, an expansion valve, or the like through which refrigerant is circulated to supply cold air. The heating device may also include a heater for providing heat. At this time, since the cooling device and the heater can be operated separately, the cooling device can stop the driving while the heater can be driven, and can also operate in the opposite case.

The present invention is characterized in that it comprises a top cover part 4 positioned at the upper end of the case part 14, a water guard part 6 mounted at the lower end of the top cover part 4, And a floating body portion 8 which is located on the left side.

The top cover 4 has a bucket 2 mounted on its top surface and supports the bottom of the bucket 2 upward. The inlet of the water bottle 2 is received in the center of the top cover part 4 and water can be discharged downward through the inlet of the water bottle 2. The top cover 4 forms an upper surface of the case 10 and is accommodated in the case 10 by a predetermined depth.

The water guard portion 6 is formed with a passage for guiding water contained in the water tank 2 into the case 10. [ Water passing through the passage of the water guard portion 6 can be moved downward.

The floating body part 8 supports the water guard part 6 in an upward direction to assist the packing provided in the water guard part 6 to move up and down according to the water level of the water. The floating body portion 8 has a chamber formed as an empty space. Through the chamber, the floating body 8 can generate buoyancy against the water contained in the cold water tank 30.

Therefore, when the water level of the cold water tank 30 rises to a certain level or more, the floating body portion 8 is raised and the water passage portion provided in the water guard portion 6 is blocked from the water tank 2, 30 to prevent water from moving. When the floating body part 8 blocks the passage through which the water flows, the water supply is interrupted, so that the water level of the cold water tank 30 is stopped without further rising. As a result, the height of the water in the cold water tank 30 can be prevented from rising to a certain level or more.

On the other hand, when the water level of the cold water tank 30 is lowered to a certain level or lower, the floating body portion 8 is lowered and the passage provided in the water guard portion 6 is opened, The water can be moved to the tank 30.

That is, the floating body part 8 is kept floating at the height of the water contained in the cold water tank 30, that is, when the water level of the cold water tank 30 changes, the floating body part 8 moves along with the water level .

The upper part of the inside of the cold water tank 30 may include a separation part 80 having a relatively high temperature and a lower part having a separation plate 82 for relatively low temperature. The separator plate 82 separates the upper side of the cold water tank 30 and the lower side of the cold water tank 30 so that water disposed on the upper side of the cold water tank 30 flows into the cold water tank 30, As shown in FIG.

Water disposed on the upper side of the cold water tank 30 through the pipe formed in the separator plate 82 can be moved to the hot water tank 90 through the first connection pipe 130. A flow path communicating with the first connection pipe 130 is provided at the center of the separator plate 82 so that water can be moved downward by gravity.

Meanwhile, an insulation 34 surrounding the outside of the cold water tank 30 may be installed outside the cold water tank 30 to reduce the temperature change of the cold water tank 30. At this time, the insulation 34 is made of a styrofoam material so as to surround the outer surface of the cold water tank 30.

A through hole 36 may be formed on one side of the insulation 34, and an adapter 50 may be provided. Related contents are described in detail using other drawings.

The cold water tank 30 and the hot water tank 90 may be connected by the first connection pipe 130 so that the water can move from the cold water tank 30 to the hot water tank 90. At this time, the first connection pipe 130 connects the lower surface of the hot water tank 90 and the lower surface of the cold water tank 30 to each other.

Since the first connection pipe 130 connects the lower surface of the cold water tank 30, the water contained in the cold water tank 30 located at a relatively high position can be lowered by gravity. Also, since the first connection pipe 130 connects the lower surface of the hot water tank 90, the possibility that the water contained in the hot water tank 90 is raised to the cold water tank 30 can be reduced. For example, when the first connection pipe 130 is installed on the upper surface of the hot water tank 90, the water in the hot water tank 90 easily moves to the cold water tank 30, .

The hot water tank 90 and the cold water tank 30 are connected to each other so that the steam generated when the water contained in the hot water tank 90 is heated can be transferred from the hot water tank 90 to the cold water tank 30. [ Can be connected by a guide tube (70).

Since the steam having a high temperature moves through the guide pipe 70, the guide pipe 70 is disposed on the upper surface of the hot water tank 90 to easily secure the steam passage.

The guide tube 70 may be made of a silicon material. Since the guide pipe 70 is installed after the cold water tank 30 and the hot water tank 90 are assembled in the case 10 from the viewpoint of assembly as a whole, It is preferable that it is made of a silicon material which can be easily deformed so as to be easily installed. Particularly, it is preferable that the guide pipe 70 is made of a material which can easily be deformed even at a high temperature due to the movement of steam, so that water is not contaminated.

The connection unit 100 is coupled to the lower surface of the hot water tank 90 and communicates with the inside of the hot water tank 90. The first connection pipe 130 is coupled to the connection unit 100, .

And a drain pipe 150 connected to the connection unit 100 for discharging the water stored in the cold water tank 30 to the outside of the cold water tank 30. At this time, one end of the drain pipe 150 may be extended to be exposed to the outside of the case 10, and a valve 158 for opening and closing the flow path of the drain pipe 150 may be formed at one end of the drain pipe 150 It can be installed. Therefore, the user can open / close the flow path of the drain pipe 150 using the valve 158.

FIG. 3 is a view showing a main part of the present invention, FIG. 4 is a view showing a state in which FIG. 3 is viewed from another direction, and FIG. 5 is a view showing a state in which a hot water tank is viewed from the bottom. This will be described below with reference to Figs. 3 to 5. Fig.

3 (a) is a front view of the main part of the invention, and Fig. 3 (b) is a view showing a cross section taken along line A-A of Fig. 3 (a). 4 (a) is a side view of the main part of the invention, and Fig. 4 (b) is a view showing a cross section taken along the line A-A in Fig. 4 (a).

The connection unit 100 may include a body 102 forming an external appearance and a second connection pipe 110 connecting the body 102 to the hot water tank 90. Particularly, the body 102 may have a first coupling hole 106 to which the first coupling pipe 130 is coupled and a second coupling hole 108 to which the drain pipe 150 is coupled.

The body 102 may be formed in various shapes such as a cylindrical shape or a rectangular parallelepiped. The body 102 is disposed at a position lower than the lower surface of the hot water tank 90 so that the second connection pipe 110 extends upward to allow the body 102 and the hot water tank 90 to communicate with each other have.

Since the first connection pipe 130, the second connection pipe 110, and the drain pipe 150 are connected to the body 102, the pipes can maintain communication with each other. If water is present in the hot water tank 90, the first connection pipe 130, the second connection pipe 110, and the drain pipe 150 may be filled with water.

At this time, the first connection pipe 130, the first connection hole 106, the second connection pipe 110, the hot water tank 90, the drain pipe 150, and the second coupling hole 108, Can be coupled to each other by electroforming. Since each pipe is a space where water passes or water remains, it is possible to prevent corrosion or breakage by welding.

The first connection pipe 130 includes a first connection member 132 extending from the cold water tank 30 to below the lower surface of the hot water tank 90 and a second connection member 132 extending perpendicularly to the first connection member 132 And a second connection member 134 extending to the connection portion 100. [ That is, the first connection pipe 130 moves the water contained in the cold water tank 30 to the lower side of the hot water tank 90 through the first connection member 132 and the second connection member 134 .

In this case, the second connection member 134 is preferably positioned lower than the hot water tank 90. That is, the water discharged from the cold water tank 30 moves to the lower surface of the hot water tank 90 rather than the upper surface of the hot water tank 90 and then flows into the hot water tank 90 through the lower surface of the hot water tank 90. [ Lt; / RTI > Therefore, hot water having a relatively high temperature must move downward through the first connection pipe 130 and then rise again, so that hot water can not easily move from the hot water tank 90 to the cold water tank 30. Therefore, the hot water and the cold water can be prevented from being easily mixed, and the energy efficiency can be improved.

The drain pipe 150 may include a first drain member 152 extending from the body 102 and a second drain member 154 vertically connected to the first drain member 152. The first connection pipe 130 and the drain pipe 150 may not overlap with each other because the drain pipe 150 is bent to have a substantially U-shaped configuration.

The first drain member 152 extends the drain pipe 150 away from the body 102 and the second drain member 154 extends from the second connection member 134 As shown in Fig.

Here, the first drain member 152 and the second drain member 154 may be located below the second connection member 134. Therefore, the water contained in the hot water tank 90 and the water contained in the first connection pipe 130 can be discharged to the outside through the drain pipe 150.

Particularly, since the drain pipe 150 is disposed below the hot water tank 90 due to the connection part 100 and disposed below the first connection pipe 130, Water may be left in the hot water tank 90 as well as the first connection pipe 130 to prevent water from being discharged less.

When it is necessary to discharge water containing detergent or the like used in the hot water tank 90 after the hot water tank 90 is sterilized or disinfected, in the present invention, water is left in the hot water tank 90 There is no possibility, the hygiene problem can be improved.

The first connection pipe 130 and the second connection member 134 and the drain pipe 150 or the first drain member 152 are present on different surfaces with respect to the body 102 It is possible to do. In other words, a portion of the body 102 connected to the first drain member 152 and a portion connected to the second connection member 134 are coupled to portions corresponding to different angles, It is possible to prevent the body 102 from being damaged by the water pressure when the water flows in or out.

4, the hot water outlet pipe 92 provided above the hot water tank 90 and the cold water outlet pipe 31 provided below the cold water tank 30 are shown.

FIG. 6 is a diagram specifically showing a connection portion. This will be described below with reference to Fig.

6 (a) is a front view of a connecting portion, Fig. 6 (b) is a side view of a connecting portion, and Fig. 6 (c) is a sectional view taken along the line A-A in Fig.

It is preferable that the first coupling hole 106 is disposed higher than the second coupling hole 108 with respect to the body 102 of the coupling portion 100. The first coupling hole 106 is coupled to the second coupling member 134 and the second coupling hole 108 is coupled to the first drain member 152.

Since the first drain member 152 is disposed at a lower position than the second connection member 134, the water contained in the hot water tank 90 through the drain pipe 150 as well as the water contained in the second connection member 134 Can be discharged together. Of course, since the first drain member 152 and the second drain member 154 are located under the second connection member 134 as shown in the other drawings, water flows through the drain pipe 150 It can be easily discharged.

That is, in the present invention, even if a separate pump is not provided, the water contained in the hot water tank 90 can be easily discharged by gravity.

The first coupling hole 106 and the second coupling hole 108 may be disposed on different surfaces of the body 102. Particularly, the first coupling hole 106 and the second coupling hole 108 may be disposed perpendicularly to the body 102. Accordingly, the moving direction of the water moved from the body 102 can be distributed differently, and the force applied by the water pressure to the body 102 can be widely dispersed.

Meanwhile, the user may use the drain pipe 150 to drain the water contained in the hot water tank 90. The user can discharge the water contained in the hot water tank 90 and the drain pipe 150 to the outside after opening the valve 158 of the drain pipe 150.

It is conceivable that the hot water outlet pipe 92 can be used to discharge the water contained in the hot water tank 90 without the drain pipe 150. The hot water outlet pipe 92 is connected to the hot water tank 90, Since it is disposed on the upper surface of the hot water tank 90, it can not be used to empty the hot water tank 90. This is because water is not discharged to the outside through the hot water outlet pipe 92 when the water level of the hot water tank 90 becomes lower than a certain level.

7 is a perspective view showing a structure in which an adapter is coupled to a cold water tank. This will be described below with reference to FIG.

The outer surface of the cold water tank 30 may be provided with an insulation 34 that can perform a cooling function to prevent the cold air supplied to the cold water tank 30 from being easily discharged to the outside.

The insulation 34 may be formed with a through hole 36 so that the adapter 50 can be installed.

The adapter 50 is provided on a side surface of the cold water tank 30 so that the steam generated in the hot water tank 90 can be transferred to the cold water tank 30. The guide pipe 70 connecting the upper surface of the hot water tank 90 and the adapter 50 to move the steam generated in the hot water tank 90 to the cold water tank 30 is shown in FIGS. 7, and so on.

Fig. 8 is a sectional view of Fig. 7, Fig. 9 is an exploded perspective view of Fig. 7, and Fig. 10 is a perspective view of the adapter. This will be described below with reference to FIGS. 8 to 10. FIG.

The adapter 50 may include a body 52 installed in the cold water tank 30 and a communication pipe 60 provided in the body 52 and communicating with the guide pipe 70. The adapter 50 is provided to penetrate the insulation 34 and the cold water tank 30.

The communicating tube 60 is entirely passed through the body 52 so that the outside of the cold water tank 30 and the inside of the cold water tank 30 can communicate with each other.

The body 52 includes a flange 54 seated on the inner surface of the cold water tank 30 and a thread 56 disposed on the outer surface of the cold water tank 30 and formed on one side of the flange 54, . ≪ / RTI >

The flange 54 extends radially in the radial direction with respect to the communicating tube 60 and abuts the inner surface of the cold water tank 30 to provide a coupling force to which the adapter 50 can be engaged .

A sealing member 82 is provided at one side of the flange 54 to prevent the flange 54 and the inner surface of the cold water tank 30 from being damaged when the adapter 50 is coupled to the cold water tank 30. [ The degree of sealing can be improved.

Since the thread 56 is located outside the cold water tank 30 when the adapter 50 is installed in the cold water tank 30, the user can tighten the nut 80 to the thread 56 have. Accordingly, the adapter (50) can be coupled to the cold water tank (30) by the nut (80).

The operator can fasten the adapter 50 to the cold water tank 30 after the cold water tank 30 and the insulation 34 are coupled. Therefore, complicated processing such as splitting the insulation 34 into two components is unnecessary. If the insulation 34 is split into two components, cold air may flow out between the two pieces of the insulation 34, which may cause a problem that the energy efficiency of the cold / hot water heater is lowered as a whole.

The communicating tube 60 includes a first communicating member 62 extending in the horizontal direction from the cold water tank 30 and a second communicating member 64 extending upward in the direction perpendicular to the first communicating member 62, . ≪ / RTI > At this time, the guide pipe 70 is preferably connected to the second communication member 64.

The guide pipe 70 is a passage through which the steam generated in the hot water tank 90 moves, but the water level of the hot water tank 90 instantaneously rises and the hot water can be raised to the guide pipe 70. If the height of the guide pipe 70 is not sufficiently secured, the water in the hot water tank 90 may be moved to the cold water tank 30 through the guide pipe 70 due to the siphon phenomenon. For example, when the water in the hot water tank 90 is discharged through the hot water outlet pipe 92 while the heater for heating the hot water tank 90 is stopped, So that the water level can rise.

Therefore, in the present invention, the height of the second communication member 64 is increased from the cold water tank 30 so that the height of the guide pipe 70 is sufficiently secured to prevent the water from being mixed by the siphon phenomenon .

On the other hand, the first communication member 62 may have an inner diameter larger than that of the second communication member 64. The steam that has risen through the second communication member 64 is likely to be changed to water when it reaches the first communication member 62. This is because the ambient temperature is relatively lowered to the cold water tank 30 and the first communication member 62 is disposed horizontally as a whole.

The body (52) may be provided with a rib (58) provided on the upper side of the communicating tube (60) to reinforce the strength. Since the communicating tube 60 extends from the body 52, it may be difficult to secure strength. The thickness of the communicating tube 60 can be secured by the rib 58, and the communicating tube 60 is damaged Can be prevented.

The adapter 50 may be made of a plastic material having a thermal conductivity lower than that of the cold water tank 30. The adapter 50 is in contact with the cold water tank 30. When the adapter 50 is made of stainless steel or the like like the cold water tank 30, the adapter 50 is connected to the cold water tank 30 Can be easily leaked to the outside. Therefore, the adapter 50 is preferably made of a material having a relatively low thermal conductivity.

As shown in FIG. 2, the present invention is provided in the cold water tank, and when the water level of the cold water tank 30 is higher than a certain level, the water is raised by the buoyant force, 30) is below a predetermined level, the floating body portion (8) is lowered by buoyancy to open a passage through which water is supplied. The water level of the water in the cold water tank 30 does not rise above a certain level by the floating body portion 8. [

Preferably, the communicating tube 60 is disposed above the water level of the water to block the water supply of the floating body part 8. The water in the cold water tank 30 is moved to the hot water tank 90 through the guide pipe 70 when the communicating pipe 60 is disposed below a predetermined level. The guide pipe 70 is a passage through which the steam moves, and can prevent the passage of the water.

In the present invention, the steam generated in the hot water tank 90 can be easily discharged to the outside of the hot water tank 90, so that the pressure inside the hot water tank 90 is raised, It is possible to prevent breakage.

It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

30: Cold water tank 34: Insulation
50: adapter 70: guide tube
90: Hot water tank 100: Connection
110: second connection pipe 130: first connection pipe
150: drain pipe

Claims (12)

A case forming an appearance;
A cold water tank accommodated in the case and storing cold water;
A hot water tank disposed below the cold water tank and storing hot water;
A connection unit coupled to a lower surface of the hot water tank and connected to the inside of the hot water tank;
A first connection pipe connecting the cold water tank and the connection unit to guide the water in the cold water tank to the hot water tank;
And a drain pipe connected to the connection portion and discharging the water stored in the cold water tank to the outside of the cold water tank. The method according to claim 1,
The connecting portion
A body forming an outer appearance,
A second connection pipe connecting the body to the hot water tank,
A first coupling hole to which the first coupling pipe is coupled,
And a second coupling hole into which the drain pipe is coupled. 3. The method of claim 2,
Wherein the first engagement hole is disposed higher than the second engagement hole. The method of claim 3,
Wherein the first engagement hole and the second engagement hole are disposed on different surfaces of the body. 5. The method of claim 4,
Wherein the first coupling hole and the second coupling hole are disposed perpendicular to each other with respect to the body. 3. The method of claim 2,
Wherein the second connection pipe extends upward from the body toward the hot water tank and is coupled to the hot water tank. 3. The method of claim 2,
The first connection pipe includes:
A first connecting member extending from the cold water tank to a lower side of the lower surface of the hot water tank,
And a second connection member extending perpendicularly to the first connection member and extending to the connection portion. 8. The method of claim 7,
And the second connecting member is located lower than the hot water tank. 9. The method of claim 8,
The drain pipe
A first drain member extending from the body,
And a second drain member vertically connected to the first drain member. 10. The method of claim 9,
And the first drain member and the second drain member are connected to each other,
Wherein the second connection member is located below the second connection member. The method according to claim 1,
One end of the drain pipe is disposed to be exposed to the outside of the case,
And a valve for opening and closing the flow path of the drain pipe is provided at one end of the drain pipe. The method according to claim 1,
A cold water outlet pipe for discharging water to the outside of the cold water tank,
And a hot water outlet pipe for discharging water to the outside of the hot water tank.

Images