KR200268373Y1 - Ultrasonic cleaning device - Google Patents

Abstract

The present invention relates to a fully automatic ultrasonic cleaning device. It is a washing tank in which the ultrasonic generator is fixed to the bottom; A drain pipe fixed to the drain hole of the washing tank; A pumping dewatering basket having a plurality of through holes provided in the drain pipe, the shaft being rotatable, and having a plurality of pumping wings at its outer circumference; A motor for rotating the pumping dehydration basket; A drainage control unit installed at a lower portion of the pumping dehydration basket and configured to open or close the drainage pipe by external control, and a controller for tangling the ultrasonic generator, the motor and the opening and closing means, and one end of the washing tank It is connected to the part surrounding the pumping dehydration basket of the drain pipe and the other end is connected to the bottom plate or side wall of the washing tank, it is provided with a circulating water pipe to allow the water in the drain pipe to flow into the washing tank during rotation of the pumping dewatering basket It features.

The present invention made as described above, by moving various debris remaining around the object to be washed during the cleaning operation to the drain port side continuously, impurities are not deposited or stayed on the bottom surface of the washing tank, and after the cleaning is completed, of course, There is no need to clean the wash bath. In addition, there is an effect that can be performed at a time as well as washing by supplying the air for washing the drying water in the washing tank in the state after the drain is completed after washing.

Description

Fully automatic ultrasonic cleaning device

The present invention relates to an ultrasonic cleaning device, and more particularly, to allow the water in the washing tank to flow in a predetermined direction during washing, and to blow air to dry the washing water in the washing tank after the washing is completed. The present invention relates to a configured automatic ultrasonic cleaning device.

With the development of science and technology, an apparatus for washing various cleaning objects by applying ultrasonic waves has been developed. The washing device is also widely used for industrial use or home use, and there is an ultrasonic dishwasher for home use.

Ultrasonic cleaning apparatus has a principle of tightly fixing a plurality of ultrasonic generators to the bottom of the washing tank and by causing the ultrasonic generator to apply ultrasonic waves to the washing objects in the washing tank to separate foreign substances from the washing objects.

However, in the conventional ultrasonic cleaning apparatus, since the cleaning operation is performed in the standing water, there is a problem that various impurities separated from the cleaning object remain in the surroundings of the cleaning object during the cleaning operation. Therefore, even when the ultrasonic cleaning is terminated, the impurities may reattach to the object to be washed while draining the water from the washing tank.

The present invention has been made to solve the above problems, by continuously moving the various residues remaining around the object to be washed during the cleaning operation to the drain port side, the impurities are not deposited or stayed on the bottom of the cleaning tank can be cleaned more clearly, of course, After this is completed, there is no need to clean the washing tank separately, and the purpose is to provide a fully automatic ultrasonic cleaning device configured to perform cleaning and drying at a time by supplying air for washing the drying water inside the washing tank after draining is completed. have.

1 is a perspective view schematically showing an automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

Figure 2 is a block diagram showing in order to explain the configuration of the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

Figure 3 is a view showing for explaining the drain control unit in the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

Figure 4 is a plan view from the top of the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

Figure 5 is a perspective view showing a pumping dehydration basket used in the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

Figure 6 is a perspective view showing a circulating water pipe of the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6.

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

10: washing tank 12: controller

14: control panel 16: ultrasonic generator

18: Drainage pipe 20: Circulation pipe

22: blowout port 24: blowing pipe

26: air outlet 28: cover

30: heater 32: blower

34: water supply solenoid valve 36: first sensor

38: second sensor 40: drain

42: power supply 44: pumping dehydration basket

46: first motor 48: second motor

50: lift stopper 54: Through-hole

56: support bracket 58: pumping wings

62: support jaw 64: spring

66: support shaft 68: wire

70: Packing 72: Jam jaw

74: drainage passage 76: drainage control unit

In order to achieve the above object, the present invention includes a washing tank in which at least one ultrasonic generator for generating ultrasonic waves by external control is fixed to the bottom of the bottom; A drain pipe having an upper end fixed to the drain hole of the washing tank and extending downward; It is provided in the drain pipe is a cylindrical formed with a plurality of through-holes for receiving the discharge through the drain and passing the water in the discharge downward, the shaft is rotatable in the drain pipe and a plurality of pumping wings are provided on the outer peripheral surface A pumping dewatering basket; A motor for rotating the pumping dehydration basket; A drainage control unit installed at a lower portion of the pumping dehydration basket and controlling the opening and closing of the drainage pipe by external control, and a controller controlling the ultrasonic wave generation unit, the motor, and the drainage control unit. The drain pipe extends to the pumping dehydration basket side and the other end is connected to the washing tank inner space through the bottom plate or the side wall of the washing tank, so that the water in the drain pipe flows into the washing tank when the pumping dewatering basket rotates. Characterized in that provided.

In addition, the drain of the washing tank is formed in an eccentric position close to the one wall from the center of the bottom plate of the washing tank, the other end of the circulating water pipe is characterized in that the drain in the washing tank is connected to the opposite side wall of the adjacent side wall.

In addition, a lower end of the drain pipe inner peripheral surface is integrally formed with a disk-shaped locking jaw having a drain passage in the center, the drain control unit; An elevating stopper which rises to be installed in the drainage passage formed by the catching jaw so as to be lifted up and down, and opens and lowers the drainage passage to seal the drainage passage; and a spring for elastically supporting the elevating stopper to open the drainage passage; A support shaft fixed horizontally across the drain pipe at the bottom of the spring, and one end is fixed to the elevating stopper and the other end is extended to the bottom, and then turn horizontally along the support shaft to pass through the wall of the drain pipe. And a motor which is fixed to the outside of the drain pipe and pulls the wire down by the control of the controller.

In addition, it is for supplying the air for washing the drying of the washing tank, one end is connected to the blowing pipe communicating with the inner space of the washing tank through the bottom plate or side wall of the washing tank, and connected to the other end of the blowing pipe and the blowing pipe Characterized in that it further comprises a blower for supplying air through the washing tank.

In addition, a heater for heating air generated from the blower is further provided between the blower and the blower pipe.

In addition, a first sensor for sensing the full water level of the water to inform the controller on one side wall of the washing tank, and a second sensor for sensing the water is drained inside the drain pipe to notify the controller. .

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing an automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

Referring to the drawings, the automatic ultrasonic cleaning apparatus according to the present embodiment, the drainage port 40 is formed on the bottom plate and the washing tank 10 to provide an inner space, and the motor to be described later located on the side of the washing tank 10 And a controller 12 for controlling the solenoid valve and the like.

The washing tank 10 may be covered by the cover 28. The cover 28 is seated on the rim of the washing tank 10 to cover the inner space of the washing tank 10 may be covered when supplying the drying air to the inside of the washing tank 10 as described below.

The control panel 14 is provided on an upper surface of the controller 12. The control panel 14 is provided with a variety of buttons and display devices, for example, it is possible to input the washing time, washing mode reservation washing and the like. Of course, the controller 12 is connected to an external power source to operate.

On the other hand, the lower portion of the washing tank 10 is provided with a circulating water pipe 20, the outer side is provided with a blow pipe (24). The circulating water pipe 20 is a pipe communicating with the inner space of the washing tank 10 through the bottom plate of the washing tank 10 so as to circulate water in the direction of arrow a of FIG. 2. Here, the arrow a direction is a direction toward the drain port 40.

The portion connected to the bottom surface of the washing tank of the circulating water pipe 20 takes the form of a slit having a predetermined gap as shown in FIG. Therefore, the slit-shaped jet port 22 is formed in the bottom plate of the washing tank as shown in FIG.

The blower pipe 24 is a pipe whose upper end communicates with the inner space of the washing tank 10 through one side wall of the washing tank 10, and the lower portion of the blower pipe (32 in FIG. 2) and the heater (30 in FIG. 2) will be described later. Connected with

The circulating water pipe 20 and the blower pipe 24 may be integrally fixed by welding to the washing tank 10 or may be installed to be assembled and disassembled with respect to the washing tank 10 according to an embodiment. .

Reference numeral 16 is a known ultrasonic generator. The ultrasonic generator 16 receives the control signal from the controller 12 to generate ultrasonic waves, and transmits ultrasonic waves into the washing tank 10.

2 is a block diagram showing the overall configuration of the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

As shown, the automatic ultrasonic cleaning apparatus according to the present embodiment is provided with a washing tank 10 in which washing is performed therein, and a side of the washing tank 10 and connected to an external power source 42 to provide various control signals. The controller 12 and the drying air supply means for blowing the drying air to the internal space of the washing tank 10.

In addition, a lower portion of the drain 40 is provided with a drain pipe 18 whose upper end is fixed to the edge of the drain 40 and extends downward. The pump pipe dehydration basket 44 for circulating the water in the washing tank 10 in the direction of arrow a and receiving various debris or impurities separated from the washing water in the drain pipe 18, and the pumping pump. A motor 46 for axially rotating the dewatering basket 44 and a drain control unit 76 positioned below the motor 46 to open and close the drain pipe 18 are provided.

The circulating water pipe 20 is installed below the washing tank 10. One end of the circulating water pipe 20 communicates with an upper portion of the drain pipe 18, that is, a portion where the pumping dewatering basket 44 is located, and the other end of the circulating water pipe 20 through the bottom plate of the washing tank 10. Communicate with the interior space.

One end of the circulating water pipe 20 communicates with the drain pipe 18 as described above, but communicates with a portion corresponding to the side of the pumping dehydration basket 44, so that the water is pumped when the pump dehydration basket 44 rotates. The circulating water pipe 20 flows inside and circulates along the arrow a direction. At this time, the drain pipe 18 serves as a casing of the pump using the pumping dewatering basket 44 as a rotor as shown in FIG.

In the present embodiment, the other end of the circulating water pipe 20 is connected to the bottom plate of the washing tank 10, but according to the embodiment, it may be further extended to the left side of the drawing to be connected to the side wall of the washing tank 10.

On the other hand, the drain pipe 18 is a pipe extending to the vertical lower portion of the washing tank 10 therein the pumping dewatering basket 44 and the motor 46 for rotating the pumping dewatering basket 44 and The drain control unit 76 is provided.

The drain pipe 18 and the apparatus therein will be described in detail with reference to FIG. 3.

The dry air supply means includes a blower pipe 24 communicating with the washing tank 10 and a heater 30 and a blower 32 whose operation is controlled by the controller 12.

The blowing pipe 24 is a passage for moving the air generated from the blower 32 into the washing tank 10. As shown in FIG. 1, the upper end of the blower pipe 24 communicates with one side wall of the washing tank 10 to form an air outlet 26, and the lower end thereof is connected to the heater 30 and the blower 32.

The shape and cross-sectional shape of the blower pipe 24 may be modified in any way according to the embodiment.

The blower 32 is a known blower whose operation is controlled by the controller 12. In addition, the heater 30 is installed at the outlet side through which the air of the blower 32 is discharged to heat the air moving to the blowing pipe 24. The heater 30 may not operate depending on the working conditions. Naturally, when the heater 30 is operated, the air discharged through the air outlet 26 will become hot air.

The first sensor 36 is provided on the inner wall of the washing tank 10. The first sensor 36 is connected to the controller 12 and located at a height corresponding to the full water level of the washing tank 10 to inform the controller 12 that the water has reached the full water level. The first sensor 36 is located in the lower portion of the air outlet port 26 of the blower pipe 24, of course.

The second sensor 38 is located on the inner circumferential surface of the drain pipe 18. The second sensor 38 is also connected to the controller 12 and is located on the lower side of the first motor 46. The second sensor 38 detects that water does not remain inside the drain pipe 18 and informs the controller 12.

Reference numeral 34 denotes a water supply solenoid valve. The water supply solenoid valve 34 is a normally closed valve mounted on the water pipe 78 installed at the upper part of the washing tank 10, connected to the controller 12, and opened by a signal from the controller 12 to open the water in the washing tank 10. To be supplied.

3 is a view illustrating an internal configuration of the drain pipe and the drain pipe in the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

As shown, the drain pipe 18 is a cylindrical casing whose upper end is fixed to the bottom surface of the washing tank 10 and extends downward, and the lower end thereof is narrowed by the locking jaw 72.

The pumping dewatering basket 44 provided in the upper part of the drain pipe 18 receives water in a state in which water is collected in the washing tank 10 by receiving various debris discharged through washing and collecting water in the washing tank 10. It functions to circulate in the a direction.

The pumping dewatering basket 44 is a cylindrical member having a plurality of through holes 54 formed on the outer circumferential surface and the bottom surface thereof, and a plurality of the pumping blades 58 fixed on the outer circumferential surface thereof, as shown in FIG. 5.

The pumping dehydration basket (44) receives the discharge discharged through the drain hole (40), the water in the discharge passes to the bottom and the other debris is temporarily accommodated inside.

The first motor 46 is provided below the pumping dehydration basket 44. The first motor 46 is fixedly supported inside the drain pipe 18 by a plurality of support brackets 56. The drive shaft of the first motor 46 is connected to the bottom surface of the pumping dehydration basket 44 and rotates the pumping dehydration basket 44 by receiving a control signal from the controller (12 of FIG. 2). The first motor 46 may use an underwater motor.

The pumping dehydration basket 44 acts as a dehydration container to squeeze water from the debris filtered therein in a state in which the pumping dehydration basket 44 is not immersed in water and serves as a pump rotor in the state of being submerged.

On the other hand, the inner diameter and the outer diameter of the lower portion of the drain pipe 18 is reduced, the locking jaw 72 is formed. The locking jaw 72 is formed by reducing the inner diameter and the outer diameter of the drain pipe 18 to provide a drain passage 74 in the center thereof.

The packing 70 is fixed to the edge portion of the locking jaw 72. The packing 70 is a sealing means to prevent water from leaking below the lifting stopper 50 when the lifting stopper 50 to be described later is lowered.

A support jaw 62 protrudes inward from an inner circumferential surface of the drain passage 74. The support jaw 62 is integrally formed with the drain passage 74 by supporting the spring 64 to be described later.

A drain control unit 76 is installed in the drain passage 74. The drain control unit 76 includes a lift stopper 50 fitted to lift inside the drain passage 74, a spring 64 elastically supporting the lift stopper 50 upward, and the lift stopper 50. It comprises a motor 48 and a wire 68 to pull the lower.

The elevating stopper 50 is lowered and is a stopper for closing the drainage passage 74 and is always supported by the spring 64 so that the lift passage 50 is normally opened.

In addition, the spring 64 elastically supporting the elevating stopper 50 to the upper end thereof is supported by the support jaw 62 and is compressed as the elevating stopper 50 moves downward. A support shaft 66 is provided below the spring 64. The support shaft 66 is a rod-shaped member which extends in the radial direction of the drain pipe 18 and is positioned horizontally, and both ends thereof are supported on the inner wall surface of the drain pipe 18 and do not bend.

On the other hand, the wire 68 has one end fixed to the bottom of the elevating stopper 50 and the other end is extended to the lower end and then through the drain pipe 18 after the support shaft 66 is extended horizontally It is connected to the second motor 48. The wire 68 does not stretch even when pulled as an inflexible metal wire.

The second motor 48 is a known motor having a pulley that can pull the wire 68 and pulls the wire 68 in the direction of arrow c when receiving a signal from the controller (12 in FIG. 2).

As a result, the drain pipe 18 is opened or closed under the control of the controller 12. The controller 12 sends a signal to the second motor 48 so that the second motor 48 pulls the wire 68 in the direction of the arrow c. The drainage passage is blocked. If the controller 12 does not give a signal, the lifting stopper Since 50 is raised by the elastic action of the spring 64, drainage is made.

Figure 4 is a plan view from the top of the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

The same reference numerals as the above reference numerals denote the same members having the same function.

Referring to the drawings, the bottom of the washing tank 10 is formed with a drain port 40 and a blower outlet 22 spaced apart from the opposite side as much as possible. The drain 40 is eccentrically to the right in the center of the bottom plate of the washing tank is formed in a position close to one side wall, the outlet 22 is located close to the side wall opposite the side wall close to the drain 40 .

In this embodiment, the cross-sectional shape of the circulating water pipe 20 has a rectangular shape as shown in FIG. In addition, the cross-sectional area of the circulation water pipe 20 is made constant so that the flow resistance of the water according to the change in the flow cross-sectional area does not occur.

On the other hand, the length (m) of the jet port 22 may be formed as long as possible so that the water flowing in the direction of the arrow a of Figure 1 can cover a wide range of the bottom plate of the washing tank. The longer the length (m) is, of course, the width of the jet port should be narrower.

Figure 5 is a perspective view showing a pumping dewatering basket used in the automatic ultrasonic cleaning apparatus according to an embodiment of the present invention.

Referring to the drawings, the pumping dewatering basket 44 has a wide inlet so as to easily receive various discharges through the drain 40 and a plurality of through holes 54 are formed on the wall. The through hole 54 is also formed in the bottom surface and water is discharged downward from the discharge and other debris is collected in the basket 44. This is like a strainer in a conventional sink drain.

The pumping blade 58 fixed to the outer circumference of the pumping dewatering basket 44 is inclined in one direction to function as a wing applied to a rotor of a general pump. The pumping blade 58 is fixed in the height direction of the pumping dewatering basket 44.

The number or shape of the pumping blades 58 can be modified as much as the embodiment. In addition, the pumping dehydration basket 44 may be made of a light metal, synthetic resin or plastic.

6 is a perspective view illustrating a circulating water pipe connecting the drain pipe and the washing tank of the automatic ultrasonic cleaning device according to an embodiment of the present invention.

Referring to the drawings, one end of the circulating water pipe 20 is in communication with an upper side of the drain pipe 18. As described above, since the pumping dehydration basket 44 is positioned at an upper side of the drain pipe 18, the water discharged in the radial direction by the pumping dehydration basket 44 may flow into the circulation water pipe 20. Can be. The other end of the circulating water pipe 20 is curved upward and is connected to the inner space of the washing tank 10.

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6.

As shown, the pumping dewatering basket 44 is rotatably installed inside the drain pipe 18 and the pumping dewatering basket 44 surrounds the outer circumference of the pumping dewatering basket 44. And the drain pipe 18 serves as a pump casing.

That is, when the pumping dehydration basket 44 rotates in the direction of arrow c while the drain pipe 18 is closed, the water contained in the inside of the washing tank is sucked into the drain port 40 side as shown in FIG. 2. After the pumping dehydration basket 44 can flow in the direction of the arrow a.

Operation of the automatic ultrasonic cleaning device of the present invention made as described above is made as follows.

First, various kinds of dishes or dishes to which objects to be cleaned, such as food waste, are placed in the washing tank 10.

If the cleaning object is put in, pressing the corresponding operation button provided on the control panel 14 of FIG. 1 causes the controller 12 to operate the second motor 48 so that the lifting stopper 50 seals the drain pipe 18. do.

At the same time, the water supply solenoid valve 34 is opened to receive water in the washing tank 10 as desired.

When the water level received in the washing tank 10 reaches the full water level, the first sensor 36 notifies the controller 12 that the controller 12 automatically closes the water supply solenoid valve 34. In fact, in many cases, however, it is not necessary to receive the water in the washing tank up to the full water level, so that when the desired amount of water is received, the water supply solenoid valve 34 is shut off through the controller 12.

Since the drain pipe 18 is blocked by the lifting stopper 50 when receiving the water in the washing tank 10, the water rises from the top of the lifting stopper 50. Therefore, the first motor 46 and the pumping dewatering basket 44 are immersed in water and filled with water in the inner passage of the circulating water pipe 20.

In any case, when the desired amount of water is received inside the washing tank 10, the ultrasonic generator 16 is operated. Of course, the ultrasonic generator 16 also operates under the control of the controller 12.

As the ultrasonic generator 16 operates, various debris adhered to the object to be cleaned come off, and the light one stays in water or floats on the water, and the other one is separated from the bottom plate around the object to be cleaned.

The first motor 46 is driven while the ultrasonic generator 16 is operating. The operation on-off or rotational speed of the first motor 46 is also controlled by pressing the corresponding button provided in the control panel 14.

When the first motor 46 is operated, the pumping dehydration basket 44 starts to rotate, and water flows along the circulation water pipe 20 in the direction of arrow a by the pumping action of the pumping dehydration basket 44. At this time, the water in the upper portion of the drain 40 is sucked into the drain according to the flow. The water sucked into the drain port 40 is introduced into the pumping dehydration basket 44 and then exits through the through hole 54 to the outside of the pumping dehydration basket 44 and hits the pumping wing 58 to be pressurized. will be.

In addition, since the water in the upper portion of the drain 40 continues to flow into the drain 40 while the pumping dehydration basket 44 rotates, the water flowing out through the jet port 22 moves toward the drain 40.

The water moving from the jet port 22 to the drain port 40 side drives various wastes to the drain port 40 while passing between the objects to be disposed on the bottom surface of the washing tank 10.

The debris moving toward the drain port 40 is sucked into the drain port 40 and once accommodated in the pumping dehydration basket 44.

When the washing operation is completed, the operation of the ultrasonic generator 16 is stopped and the second motor 48 is turned off, thereby causing the spring (64 in FIG. 3) to move the lifting stopper 50 upward. The drain pipe 18 is opened.

When the drainage of the water is completed and the second sensor 38 notifies the controller 12 of the fact, the controller 12 rotates the first motor 46 at a high speed to dehydrate water from the residue contained therein. When the dehydration is completed, the pumping dewatering basket 44 is taken out of the drain pipe 18, and the dewatered debris is collected and reinstalled.

If one wash is insufficient according to the washing conditions, the process is repeated.

Subsequently, drying air is added to the washing tank 10 to dry the washing object.

The blower 32 is operated through the controller 12 to dry the cleaning object. Air generated from the blower 32 is moved into the washing tank 10 in the direction of the arrow b through the blowing pipe 24.

The upper end of the blower pipe 24 is an air outlet 26 through which air flows so that drying air generated from the blower 32 is widely spread into the washing tank.

In the drying process, it is preferable to cover the cleaning tank (28 of FIG. 1) so that the blowing air does not escape to the outside.

In some cases, when hot air drying is required, hot air may be added to the washing tank 10 by operating the heater 30 as described above.

All washing process is terminated by drying the bowl through the drying process.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. .

Fully automatic ultrasonic cleaning device of the present invention made as described above, by moving various debris remaining around the object to be washed during the cleaning operation to the drain port side continuously, impurities are not deposited or stayed on the bottom of the cleaning tank, so that cleaning can be performed more cleanly. Of course, there is no need to clean the cleaning tank after the cleaning is completed. In addition, there is an effect that can be performed at a time as well as washing by supplying the air for washing the drying water in the washing tank in the state after the drain is completed after washing.

Claims (6)

At least one ultrasonic generator for generating ultrasonic waves by external control, the washing tank being fixed to the bottom of the bottom; A drain pipe having an upper end fixed to the drain hole of the washing tank and extending downward; It is provided in the drain pipe is a cylindrical formed with a plurality of through-holes for receiving the discharge through the drain and passing the water in the discharge downward, the shaft is rotatable in the drain pipe and a plurality of pumping wings are provided on the outer peripheral surface A pumping dewatering basket; A motor for rotating the pumping dehydration basket; A drain control unit installed at a lower portion of the pumping dehydration basket and opening or closing the drain pipe by external control; And a controller for controlling the ultrasonic generator, the motor, and the drainage controller. In the lower part of the washing tank, one end thereof is extended to the pumping dehydration basket side through the drain pipe and the other end is connected to the washing tank inner space through the bottom plate or sidewall of the washing tank, so that the water in the drain pipe is rotated when the pumping dewatering basket is rotated. Fully ultrasonic cleaning device characterized in that the circulation water pipe is provided to flow inside. The method of claim 1, The drainage port of the washing tank is formed in an eccentric position close to the one side wall from the center of the bottom plate of the washing tank, the other end of the circulating water pipe is an automatic ultrasonic cleaning device, characterized in that connected to the side wall opposite the side wall adjacent to the drain hole in the washing tank . The method of claim 1, The inner circumferential surface of the lower end of the drain pipe is integrally formed with a disk-shaped locking jaw having a drain passage in the center thereof. The drain control unit; A lifting stopper which rises to be installed in the drainage passage formed by the locking jaw so as to be lifted and opens and descends the drainage passage to seal the drainage passage; A spring for elastically supporting the elevating stopper to open the drain passage; A support shaft fixed horizontally across the drain pipe at the bottom of the spring, One end is fixed to the elevating stopper and the other end is extended to the lower side and then turn the support shaft to extend horizontally to pass through the wall surface of the drain pipe, And a motor fixed to the outside of the drain pipe and configured to pull down the wire and lower the lifting stopper by the control of a controller. The method of claim 1, In order to supply the washing water drying air into the washing tank, A blowing pipe whose one end communicates with the inner space of the washing tank through the bottom plate or sidewall of the washing tank; And a blower connected to the other end of the blower pipe and supplying air to the inside of the washing tank through the blower pipe. The method of claim 4, wherein Between the blower and the blowing pipe is a full automatic ultrasonic cleaning device, characterized in that further provided with a heater for heating the air generated from the blower. The method of claim 1, One wall of the washing tank is provided with a first sensor for sensing the full water level of the water to inform the controller, Fully ultrasonic cleaning device, characterized in that the inside of the drain pipe is provided with a second sensor for sensing that the water is drained to inform the controller.