KR100460491B1 - Check valve for opening and closing of cold and warm water purifier - Google Patents

Abstract

The present invention is installed on the flow path connecting the cold water tank and the hot water tank of the cold and warm water purifier, so that the wet steam of the hot water tank is introduced into the cold water tank, so that the water in the cold water tank is not opened, the check valve for opening and closing the flow path of the cold and warm water purifier The present invention relates to opening and closing a flow path of a water inflow pipe according to the amount of water in a hot water tank without using a coil spring for operating a valve seat.

To this end, in the cold and warm water purifier provided with a check valve on the water supply pipe (6) connecting the cold water tank (2) and the hot water tank (7), the upper cap 13 and the lower cap 14 formed separately; In addition, the packing 15 is installed in the upper cap to maintain the airtight, and the upper and lower caps are installed so as to be able to move up and down, and the outer circumferential surface is formed of a mouth 19 formed with a cutout 19a.

Description

Check valve for opening / closing flow of cold and warm water purifiers

The present invention is installed on the flow path connecting the cold water tank and the hot water tank of the cold and warm water purifier, so that the wet steam of the hot water tank is introduced into the cold water tank, so that the water in the cold water tank is not opened, the check valve for opening and closing the flow path of the cold and warm water purifier It is about.

1 is a schematic view showing the structure of a typical cold and warm water purifier, a reservoir (1) containing purified water through a plurality of filters in sequence, and a cold reservoir (2) in which water in the reservoir is filled to a predetermined level. And a refrigerant pipe (3) wound in a coil shape on the outer circumferential surface of the cold water container, a compressor (4) for compressing the refrigerant in the refrigerant pipe, and installed inside the cold water container to partition the inside of the cold water container. A plurality of cutouts 5a are formed in the cold water container so that water is introduced into the cold water container, and a diaphragm 5 having a water supply pipe 6 fixed thereto at a central portion thereof, and an end of the water supply pipe fixed to the water supply pipe. A hot water tank 7 containing water supplied through the heater, a heater 8 wound around the outer circumferential surface of the hot water tank to heat the water in the hot water tank to a set temperature according to the application of power, and the cold water tank and the hot water tank, respectively. Connected to cold and hot water outside It is composed of cold and hot water extraction cock (not shown) to be taken out.

Therefore, when the purified water in the reservoir 1 flows into the cold water tank 2, the water is supplied downward through the cutout 5a formed on the outer circumferential surface of the diaphragm 5, so that the water in the cold water tank 2 is different. If the water in the cold water tank (2) to the upper portion of the diaphragm (5), the water is supplied to the hot water tank (7) through a water supply pipe (6) fixed to the center of the diaphragm (5).

When the compressor 4 is driven while the purified water is filled in the cold water container 2 and the hot water container 7, the coolant is circulated inside the refrigerant pipe 3, so the water temperature in the cold water container 2 is circulated. Will maintain approximately 5 ° C.

At the same time, since power is applied to the heater 8 wound around the outer circumferential surface of the hot water tank 7, the water temperature in the hot water tank 7 is maintained at about 85 ° C.

When the temperature of the water in the cold water tank 2 and the hot water tank 7 maintains the set temperature, the driving of the compressor 4 and the heater 8 is stopped by the sensing means (not shown), and the temperature is lower than the set temperature. If it falls, the operation of restarting is repeatedly performed so that the user can always drink cold and hot water at the set temperature.

The cold / warm water purifier having the above-described structure, even though the water temperature in the cold water tank 2 is maintained at 5 ° C. by the operation of the compressor 4, the wet steam generated by heating in the hot water tank 7 is supplied to the water supply pipe 6. Since the cold water is heated by moving to the upper side (cold water container side) through the temperature of the water located in the upper portion of the diaphragm 5 is maintained at about 40 ℃ much higher than the temperature of the water (water in the reservoir).

Accordingly, since the hot water in the upper portion of the diaphragm 5 flows into the cold water container 2 through the incision 5a, the compressor 4 continuously maintains the water temperature in the cold water container at a set temperature of 5 ° C. Must be operated as

As such, when the compressor 4 is continuously driven to lower the temperature of the water located above the diaphragm 5 than the temperature of the water being supplied, the cold water is supplied to the hot water tank 7 through the water supply pipe 6. Since the opposite phenomenon that the power must be continuously applied to the heater 8 is generated, thereby causing a problem in that the consumption of electricity due to the operation of the cold and warm water purifiers increases.

Therefore, in order to solve the above problem, when the check valve 9 is installed on the water supply pipe 6 and the hot water in the hot water tank 7 is not discharged, the wet steam in the hot water tank 7 is transferred to the cold water tank 2. After the hot water in the hot water tank 7 is discharged, the check valve 9 opens the flow path by the hydraulic pressure difference so that the water in the cold water tank 2 is filled with the hot water tank 7.

FIG. 2 is a longitudinal cross-sectional view showing a conventional check valve, a divided housing 10 serving as a case, a valve seat 11 installed in the housing so as to move up and down and opening and closing a flow path on a water supply pipe, The lower side of the valve seat is provided with a coil spring 12 for biasing the valve seat upward.

Therefore, the valve seat 11 closes the flow path of the water supply pipe 6 by the restoring force of the coil spring 12 in the state in which the water is filled in the hot water tank 7. 2) It does not flow to the side.

However, when the user presses the hot water cock and draws out the hot water in the hot water tank 7, the water level in the hot water tank 7 is lowered so that a water pressure difference is generated. As the coil spring 12 is compressed, the valve seat 11 descends to open the flow path. Thus, the cold water in the cold water tank 2 flows into the hot water tank (7).

When the water pressure difference is removed by the water filling in the hot water tank 7, the coil spring 12, which was compressed by the water pressure difference, is restored to the initial state, so that the valve seat 11 closes the flow path.

However, the check valve 9 of such a structure is made so that the coil spring 12 is very sensitive to operate by the hydraulic pressure, so that the repeated use can not be opened and closed because the restoring force is reduced, the compressor (4) and the heater ( Repeated driving of 8) resulted in an increase in the electricity consumption.

The present invention has been made to solve such a conventional problem, to provide a check valve for opening and closing the flow path of the water inlet pipe according to the amount of water in the hot water tank without using the coil spring to operate the valve seat. have.

According to an aspect of the present invention for achieving the above object, in the cold and warm water purifier provided with a check valve on the water supply pipe connecting the cold water tank and the hot water tank, the upper cap and the lower cap formed in the partition, and installed in the upper cap The airtight check valve for opening and closing the cold and warm water purifiers is characterized in that the packing is maintained to be airtight, the upper and lower caps are installed to be lifted and lowered, and the outer peripheral surface is formed with a cutout formed therein.

1 is a schematic diagram showing the structure of a typical cold, warm water purifier

Figure 2 is a longitudinal cross-sectional view showing a conventional check valve

Figure 3 is an exploded perspective view showing the main part of the present invention

4A and 4B are longitudinal cross-sectional views of the coupled state of FIG. 3;

Figure 4a is a state in which the mouth is lowered due to the discharge of the hot water tank to open the flow path

Figure 4b is a state in which the mouth is closed due to the water replenishment of the cold water container closed the flow path

FIG. 5 is a cross-sectional view taken along the line A-A of FIG. 4A

Explanation of symbols for main parts in the drawings

2: cold water container 6: water supply pipe

7: hot water container 13: upper cap

14: lower cap 14: packing

15a: wing piece 16: elastic piece

17: protruding jaw 18: locking jaw

19: mouth 19a: incision

19b: curved portion 19c: space portion

19d: protrusion 20: housing

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 5 as an embodiment.

Figure 3 is an exploded perspective view showing the main part of the present invention, Figures 4a and 4b is a longitudinal cross-sectional view of the coupled state of Figure 3 and Figure 5 is a cross-sectional view taken along the line A-A of Figure 4a, the check valve of the present invention is formed by the upper cap ( 13) and the lower cap 14, the housing 20 is formed, the inside of the upper cap 13 constituting the housing is provided with a packing (15) to maintain the airtight.

The upper cap 13 and the lower cap 14 may be fixed with an adhesive in an assembled state, but a portion of the lower cap 14 may be cut to the elastic piece 16 to be assembled without using a separate adhesive. The protrusion jaw 17 may be formed, and the locking jaw 18 may be formed in the upper cap 14 so that the protrusion jaw 17 is caught and fixed.

At this time, the distance L1 from the locking jaw 18 formed on the upper cap 13 to the inner top surface is the distance L2 from the protruding jaw 17 formed on the lower cap 14 to the upper surface + packing ( 15) is closer than the thickness L3.

This, the upper and lower caps 13, 14 in the assembling process of the packing 15 into the upper cap 13, then assembled the lower cap 14, and then press the packing 15 as it is pressed to protrude The jaw 17 is fitted to the locking jaw 18 to be assembled so that the airtightness can be maintained at their assembly sites.

In addition, the upper and lower caps 13 and 14 are accommodated so that the buckle 19 having the cutout 19a formed on the outer circumferential surface of the upper and lower caps 13 and 14 can be lifted and lowered. It is preferable to use a cork or PE foamed injection product which is not made.

However, by coating the PE system on the outer circumferential surface of the styrofoam can also be used as a mouth 19.

In addition, although the inlet 19 is formed on the outer circumferential surface only the incision 19a is formed in the form filled inside, the lifting and lowering operation is possible, but the lower portion is open to the lower portion to make the lifting and lowering operation more smoothly ( It is more preferable that the air layer is formed in the space portion 19c by forming 19c.

The upper surface of the mouth 19, ie, the connection surface for opening / closing the flow path of the water inlet pipe, is configured such that the curved portion 19b is formed to be in line contact, and the curved portion 19b is provided in the packing 15 for maintaining airtightness. It is more preferable to integrally form the wing piece 15a so as to be closely connected and to completely close the flow path.

In addition, a plurality of protrusions 19d are formed at the bottom of the sub-ball 19. When the sub-ball is located at the bottom dead center as shown in FIG. 4A, the protrusion 19d touches the bottom surface of the lower cap 14 to form a flow path. It is supposed to be.

Referring to the operation of the present invention configured as described above is as follows.

First, in the state in which the water in the hot water tank 7 is filled, as shown in FIG. 4B, the buckle 19 installed to be able to move up and down inside the housing 20 is raised, so that the curved portion 19b of the buckle 19 is packed 15. Since it is intimately connected to the wing piece (15a) of the), the float 19 closes the flow path of the water supply pipe (6), so that the hot water even if the water in the hot water tank (7) is heated by the heat generated by the heater (8) The wet steam in the barrel 7 does not flow into the cold water container 2 side.

As described above, when the user presses the hot water cock in the state in which the mouth 19 closes the flow path of the water supply pipe and draws out the hot water in the hot water tank 7, the water level in the hot water tank 7 is lowered. The buoy 19, which is embedded in the cavities, descends as shown in FIG. 4A to open the flow path of the water supply pipe.

Even when the sub-ball 19 descends to the bottom dead center and touches the bottom surface of the lower cap 14 on the bottom, a plurality of protrusions 19d are formed on the bottom of the sub-ball to form a flow path.

When the flow path of the water supply pipe is opened in this way, the water in the cold water container 2 flows into the housing 20 due to the hydraulic pressure difference and follows the space between the cutouts 19a formed on the outer circumferential surface of the mouth 19. Since the hot water container 7 is supplied to the hot water container 7 is filled with water.

When water is diverted on the flow path of the water supply pipe by the continuous filling, the buoy 19 lowered by its own weight is lifted by the buoyancy and the curved portion 19b is attached to the wing piece 15a of the packing 15 as shown in FIG. 4B. The flow path is closed because it is closely connected.

As described above, the present invention uses a cold / warm water purifier for a long time because the opening and closing of the water supply pipe is opened and closed according to the rise and fall of the buoy by incorporating a buoy which rises and falls in the housing of the check valve. Even if it performs the function of the check valve perfectly, it prevents the inflow of the wet steam generated from the hot water tank into the cold water tank in advance, thereby significantly reducing the electricity consumption by the use of cold and warm water purifier by about 40%. You get an effect.

Claims (3)

In the cold and warm water purifier provided with a check valve on the water supply pipe connecting the cold water tank and the hot water tank, divided upper cap and lower cap, the packing is installed in the upper cap to maintain the airtight, the upper and lower caps It is installed to be able to move up and down in the interior of the outer peripheral surface is formed with a cutout, the bottom surface is a check valve for opening and closing the flow path of the cold, hot water purifier, characterized in that consisting of a plurality of projections formed. The method of claim 1, A check valve for opening and closing the flow path of the cold and warm water purifier, characterized in that a space portion having an open lower portion is formed in the inside of the mouth. The method of claim 1, The wing piece is integrally formed in the lower portion of the packing, the upper surface of the buoy is formed a curved portion corresponding to the wing piece check valve for opening and closing the cold, warm water purifier.