KR970002819Y1 - Dishwasher - Google Patents

Abstract

None.

Description

Watering Equipment of Dishwasher

1 is a cross-sectional view showing a conventional dishwasher.

Figure 2 is a cross-sectional view showing a combined dishwasher of the present invention applied.

Figure 3 is an enlarged cross-sectional view showing the main part showing the water supply of the dishwasher according to the present invention.

Figure 4 is a cross-sectional view showing an operating state for the water supply of the dishwasher according to the present invention.

* Explanation of symbols for main parts of the drawings

4: washing tank 21a: water supply passage

30: water supply valve 40: opening and closing means

41a: inlet hole 42: pressure chamber

43: diaphragm 43a: protrusion

44, 47: pressure hose 45, 48: air chamber

46: reservoir plate 49: pressure switch

w: washing water

The present invention relates to a water supply device for a dishwasher that adjusts water supply by detecting leaks flowing out of a washing tank and stored therein, and prevents water damage.

Generally, as shown in FIG. 1, the dishwasher is provided with a new bath (4) in which a rack member (2) (3) can be used in the washing machine main body (1). At the lower side thereof, a water supply valve 7 which controls the washing water W supplied from the tap water 5 and supplies it into the washing tank 4 through the water supply pipe 6 is provided.

And the injection nozzle (9) (10) for injecting the washing water (W) supplied in the washing tank (4) into the dish (A) accommodated in the rack member (2) (3) in accordance with the operation of the circulation pump (8) Is installed and the lower side of the washing tank (4) is provided with a drain pump (11) for discharging the washing water (W) after washing to the outside of the washing machine body (1), the lower side of the injection nozzle (9) (10) It is equipped with a heater 12 for heating the washing water (W).

Therefore, when washing conditions, etc., are selected in the operation unit (not shown) in the state of accommodating a plurality of dishes A in the rack members 2 and 3, the washing tank 4 is operated through the water supply pipe 6 by the operation of the water supply valve 7. When a predetermined amount of washing water (W) is supplied to the inside, the circulation pump (8) is operated to pressurize the washing water (W) in the washing tank (4) to a predetermined pressure through the injection nozzle (9) (10) Sprayed.

The washing is performed by the pressure of the washing water (W) sprayed on the surface of the tableware (A) through the spray nozzles (9) and (10) and after the washing is completed, the drainage pump (11) operates the washing tank (4). The inner washing water (W) is to be discharged to the outside.

However, such a conventional dishwasher is not only inherent to a short circuit when the washing water is excessively supplied due to a malfunction of the water supply valve, and the washing water overflows to the outside of the washing tank, but also is not clean due to the leakage of the washing water. There are various problems.

Withdrawn in order to solve the problems of the prior art as described above of the present invention, the object of the present invention is to adjust the water supply by detecting leaks flowing out of the washing tank and stored in the interior of the main body while the parts disposed inside the main body An object of the present invention is to provide a water supply device for a dishwasher that is not damaged by the leak.

In order to solve the above object, the water supply device of the dishwasher according to the present invention is a dishwasher having a water supply valve installed in the middle of the water supply pipe to supply the washing water in the washing tank disposed in the main body, the bottom of the main body of the outside of the washing tank The storage plate for storing the leakage leaked out to the storage is disposed, the air chamber in which the pressure rises due to the leakage is disposed on the bottom surface of the storage plate, the opening and closing means for opening and closing the pipeline by transferring the pressure of the air chamber to the water supply pipe It is characterized in that by adjusting the water supply by detecting a leak and at the same time protect the components disposed on the bottom of the body.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to FIGS. 2 to 4.

FIG. 2 is a cross-sectional view of the entire coupling showing the dishwasher to which the present invention is applied. FIG. Detailed description will be omitted.

In the figure, reference numeral 20 denotes a water supply means for supplying the washing water W supplied through the tap water 5 into the washing tank 4.

The water supply means 20 is connected in the middle of the water supply pipe 6 and the valve pipe member 21 and the water supply in the valve pipe member 21 in which the water supply passage 21a is formed to enable the distribution of the washing water W therein. Water supply passage 21a according to the pressure of the water supply valve 30 for selectively opening / closing the passage 21a and the washing water W overflowing to the outside of the washing tank 4 by light inlet water and the like when the water supply valve 30 is opened. It includes a closing means 40 for selectively opening the.

One side of the valve tube member 21 is installed with a filter member 22 for filtering foreign matters contained in the washing water (W), and the other end coupling portion 23 is coupled to facilitate the connection of the water supply pipe (6) It is.

In addition, the water supply valve 30 has a housing 32 fixedly installed on one side of the valve pipe member 21 via a fixing plate 31 having a through hole 31a communicating with the water supply passage 21a. The outer side of the housing 32 is formed with a coil 33 to which power is applied at the time of water supply, and the inner side of the housing 32 is an operating shaft 34 which is lifted and operated by a magnetic field formed by applying power to the coil 33. It is installed elastically by the elastic member 35, and the valve plate 36 for opening and closing the water supply passage 21a is fixedly installed at the end of the operation shaft 34 to selectively open the water supply passage 21a. And close.

In addition, the opening and closing means 40 formed on one side of the water supply valve 30 has a pressure core formed at one side of the valve tube member 21 at predetermined intervals with an inlet hole 41a and an outlet hole 41b ( 42 and the diaphragm 43 fixedly installed in the pressure chamber 42 to close the inlet hole 41a to block the flow of the washing water w when pressure is generated.

The diaphragm 43 has a protrusion 43a protruding from one side so as to be inserted downward into the inlet hole 41a by the pressure acting in the pressure chamber 42 and closed.

On the other hand, one side of the pressure chamber 42 is connected to one end of the pressure hose 44 for transmitting the pressure of the washing water (w) overflowed to the outside of the washing tank 4, the other end of the pressure hose 44 is the washing tank ( It is connected to the air chamber 45 provided under 4).

The air chamber 45 is connected to an air chamber 45 provided below the washing tank 4.

In addition, the air chamber 45 is installed on the storage plate 46 fixed to the lower side of the washing tank 4, and an air chamber 48 to which the pressure source 47 is connected is installed at one side thereof. At the tip of the head 47, a pressure switch 49 is turned on and off by the pressure of the washing water w acting in the air chamber 48 to operate the drain pump 11.

The storage plate 46 is fastened by the bolts 51 through the sealing member 50 so that the washing water w overflowing to the outside of the washing tank 4 is stored, and the washing water stored in the storage plate 46. A drain plug 52 for discharging (w) is detachably coupled.

And the lower side of the washing machine main body 1 is formed with a leg 53, the adjustment screw 54 is screwed to the bottom surface of the leg 53 to facilitate the adjustment of the height.

Next will be described in detail the operation and effect on the leakage preventing device of the dishwasher according to the present invention configured as described above.

First, if a predetermined washing condition is selected in the control unit (not shown), the washing water (w) supplied from the tap water (5) is supplied to the water supply pipe (30) by opening the water supply valve (30) by the operation of the water supply means (20). Water is supplied into the washing tank (4) through.

That is, when a magnetic field is formed as a current is applied to the coil 33, as shown in FIG. 3, the working shaft 34 is raised while compressing the elastic member 35, so that the valve tube 36 is removed from the fixed plate 31. By being separated, the washing water w introduced into the valve tube member 21 is transferred into the water supply passage 21a through the through hole 31a, and then the inlet hole 41a and the outlet hole 41b formed in the opening and closing means 40 are separated. After passing through the water supply pipe 6 is to be supplied to the washing tank (4).

At this time, when the washing water (w) supplied into the washing tank (4) is excessively supplied or overflowed to the outside of the washing tank (4) by malfunction of the water supply valve (30), the overflowing washing water (w) is stored in the storage plate 46 As the air flows into the air chambers 45 and 48 installed on both sides, the air pressure in the air chambers is increased.

The air pressure is transmitted through the pressure hoses 44 and 47 to operate the opening and closing means 40 and the pressure switch 49.

That is, the air pressure of the air chamber 45 is immediately transmitted through the pressure hose 44 to apply a predetermined pressure in the pressure chamber 42, and the pressure acting in the pressure chamber 42 is shown in FIG. As shown in the drawing, the diaphragm 43 is operated downward to insert the protrusion 43a into the inlet hole 41b to close the inlet hole 41a. Thus, the distribution of the washing water w into the water supply passage 21a is prevented. It is impossible to stop the water supply of the washing water (w).

Meanwhile, the air pressure of the air chamber 48 is transmitted through the pressure hose 47 to turn on the pressure switch 49 and generate an alarm sound.

The drain pump 11 operates in accordance with the ON operation of the pressure switch 49 to discharge the washing water w in the washing tank 4 to the outside of the washing main body 1 to prevent additional overflow of the washing water w. do.

In addition, the user can open the drain cap 52 and discharge the leakage stored in the storage plate 46 to the outside in accordance with the alarm sound to prevent damage to the various components disposed on the bottom of the main body (1).

After draining the water, the drain plug 52 is coupled to the storage plate 46, and the initial state that may act in the air chambers 45 and 48 by the leakage of water overflowing to the outside of the washing tank 4 is obtained. do.

In addition, the storage plate 46 is tightly coupled by the sealing member 50, so that the leakage stored therein does not leak to the outside.

In addition, the water supply valve 30 and the drain pump 11 may be operated independently at the water supply and drain stroke, respectively, and the opening and closing means 40 may be operated only at the water supply stroke, and the pressure switch 49 may be used. More preferably, it is configured to operate when watering, washing or rinsing.

As described above, according to the water supply device of the dishwasher according to the present invention, the water supply and drainage are adjusted according to the air pressure caused by the leakage of water overflowed to the outside of the washing tank by the excessive supply of the washing water or the malfunction of the water supply valve. Damage to parts can be prevented.

Claims (5)

In the dishwasher provided with a water supply valve 30 in the middle of the water supply pipe 6 to supply the washing water W into the washing tank 4 disposed in the main body 1, the bottom of the main body 1 has a The storage plate 46 for storing the leakage leaked to the outside is disposed, and an air chamber 45 in which the pressure rises due to the leakage is disposed on the bottom surface of the storage plate 46. It is provided with an opening and closing means 40 for opening and closing the pipeline by transmitting pressure to the water supply pipe 6 to adjust the water supply by detecting a leak and at the same time to protect the components disposed on the bottom of the main body 1 The water supply of the dishwasher. The pressure chamber 42 and the pressure chamber of claim 1, wherein the opening and closing means 40 transmits the pressure acting in the air chamber 45 installed on the storage plate 46 through the pressure hose 44. 42) The water supply apparatus of the dishwasher, which is made of a diaphragm 43 which is lifted and operated by the pressure in the opening and closes the inlet hole 41a formed in the water supply passage 21a. 3. The water supply device of the dishwasher according to claim 2, wherein the diaphragm (43) has a protrusion (43a) inserted into the inlet hole (41a) to block the flow of the washing water (w). According to claim 1, wherein the reservoir plate 46 is provided with an air chamber (48) in which pressure is applied by the washing water (w) stored in the reservoir and the pressure in the air chamber 48 above the pressure hose 47 The water supply device of the dishwasher, characterized in that the pressure switch 49 is installed to operate the drain pump 11 to discharge the washing water (w) in the washing tank (4). The water supply apparatus of claim 1 or 4, wherein the storage plate (46) is detachably coupled to a drain cap (52) for discharging the washing water (w) stored therein.