CN112118916A

CN112118916A - Ultrasonic cleaning device

Info

Publication number: CN112118916A
Application number: CN201980031242.8A
Authority: CN
Inventors: 竹内晴美; 直野浩树
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Priority date: 2018-05-08
Filing date: 2019-05-05
Publication date: 2020-12-22
Anticipated expiration: 2039-05-05
Also published as: JP2019195749A; WO2019214532A1; CN112118916B; JP7175461B2

Abstract

An ultrasonic cleaning device (1) is provided with: an ultrasonic cleaning unit (100) including an ultrasonic generator (110) that generates ultrasonic waves; a main body (300) which is provided at an installation site and holds the ultrasonic cleaning unit (100); a water storage unit (200) which is provided integrally with the main body unit (300) at a position below the ultrasonic generator (110) and has a water storage tank (240) for storing water for soaking the object to be cleaned; and a water supply tank (400) which is housed in the main body (300) and stores water to be supplied to the water storage tank (240). When the water supply tank (400) is located at the separated position, the top surface of the water supply tank (400) protrudes upward beyond the top surface of the main body (300), and when the water supply tank (400) is located at the inserted position, the top surface of the water supply tank (400) and the top surface of the main body (300) are located on the same plane. With the arrangement, the user can smoothly wash the object to be washed and the user's convenience can be improved.

Description

Ultrasonic cleaning device

Technical Field

The present invention relates to an ultrasonic cleaning apparatus.

Background

Patent document 1 describes an ultrasonic cleaning apparatus including: a cleaning device main body in which an ultrasonic wave generating unit including a vibration horn (horn) is built; and a tray having a water storage part for storing water and supporting the object to be washed.

In the ultrasonic cleaning apparatus of patent document 1, a user immerses the object to be cleaned in water stored in a water storage unit in a state where the distal end of the vibration horn is in contact with a dirty portion of the object to be cleaned. When the ultrasonic wave generating unit operates, ultrasonic energy emitted from the vibration horn is transmitted to the object to be cleaned via water, and dirt components adhering to the object to be cleaned are separated from the object to be cleaned.

In the ultrasonic cleaning apparatus described above, the cleaning apparatus main body and the tray are separated and independent from each other, and the user must hold the cleaning apparatus main body with one hand and the object to be cleaned with the other hand. Therefore, if the object is held by only one hand, it may be difficult to move the object to be cleaned depending on the contaminated site. Further, since the tray is only placed on an installation place such as a desk, when the object to be cleaned is moved, the tray is likely to move together with the object to be cleaned, and the tray may be inclined to cause water leakage.

This may make it difficult for the user to smoothly clean the object to be cleaned with the ultrasonic cleaning apparatus.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2004-216244

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide an ultrasonic cleaning apparatus which enables a user to smoothly clean an object to be cleaned and which can improve user convenience.

Means for solving the problems

An ultrasonic cleaning apparatus according to a main aspect of the present invention includes: an ultrasonic cleaning unit including an ultrasonic generator for generating ultrasonic waves; a main body part which is arranged at an installation place and holds the ultrasonic cleaning part; a water storage section provided integrally with the main body section at a position below the ultrasonic generator and having a water storage recess for storing water used for immersing an object to be cleaned; and a water supply tank housed in the main body portion and storing water to be supplied to the water storage recess. Here, the water supply tank is movable in an up-down direction between a first position where water is not discharged and a second position where water is discharged, and when the water supply tank is located at the first position, a top surface of the water supply tank protrudes upward more than a top surface of the main body, and when the water supply tank is located at the second position, a position of the top surface of the water supply tank is lower than when the water supply tank is located at the first position.

According to the above configuration, since the ultrasonic cleaning unit is held by the main body, the user can hold the object to be cleaned with both hands. This allows the user to smoothly move the object to be cleaned. Further, since the water storage portion is provided integrally with the main body portion, the water storage portion is less likely to move together with the object to be washed when the object to be washed is moved, and water is less likely to spill from the water storage portion. Further, when the water supply tank is located at the first position where water is not discharged, the top surface of the water supply tank protrudes upward from the top surface of the main body, and therefore, the user can easily take out the water supply tank from the main body by grasping the portion exposed to the outside of the water supply tank. On the other hand, when the water supply tank is located at the second position for discharging water, the top surface of the water supply tank does not easily protrude upward from the top surface of the main body, and therefore, the user does not easily take out the water supply tank from the inside of the main body. Therefore, the water supply tank is not easy to be taken out by mistake when the ultrasonic cleaning device performs cleaning operation.

In the ultrasonic cleaning apparatus of this aspect, the following configuration may be adopted: when the water supply tank is located at the second position, the top surface of the water supply tank and the top surface of the main body part are located on the same plane.

In the above-described embodiments, the term "on the same plane" may be interpreted as a concept including the case where the terms are substantially on the same plane.

According to the above structure, when the water supply tank is located at the second position, it is less likely for the user to take out the water supply tank from the main body. Further, the top surface of the water supply tank and the top surface of the main body are flat as a whole, so that the ultrasonic cleaning apparatus is more beautiful when used.

In the ultrasonic cleaning apparatus of this aspect, the following configuration may be adopted: the main body portion includes a main body top surface member constituting a top surface of the main body portion, and the water supply tank includes a tank main body storing water and a tank top surface member fitted to the top surface of the tank main body and constituting the top surface of the water supply tank.

According to the above structure, the main body top surface member and the tank top surface member have the same color and the same gloss, and the top surface of the main body and the top surface of the water supply tank have a uniform feeling. Further, the tank main body does not need to be identical in color or the like to the top surface of the main body, and therefore, the tank main body can be formed of a transparent material, and a user can confirm the water stored in the tank main body.

In the ultrasonic cleaning apparatus of this aspect, the following configuration may be adopted: a grip portion is provided at a portion of the water supply tank exposed from the main body portion when the water supply tank is located at the first position.

According to the above configuration, the user can easily grasp the water supply tank when taking out the water supply tank from the main body.

In the ultrasonic cleaning apparatus of this aspect, the following configuration may be adopted: the water storage portion is detachably attached to the main body portion. In this case, the apparatus further includes: a separation preventing portion that fixes the water storage portion when the water supply tank is in the second position and releases the fixation of the water storage portion when the water supply tank is in the first position.

According to the above configuration, the water storage portion can be detached from the main body portion, and therefore, the water storage portion can be easily cleaned. In addition, the user can detach the water storage part from the main body part in a state that water supply from the water supply tank is difficult.

In the ultrasonic cleaning apparatus according to the present aspect, the ultrasonic cleaning apparatus may further include: a detection part for detecting whether the water supply tank is located at the second position; and a control unit that controls the ultrasonic generator. In this case, the control unit may operate the ultrasonic generator when the water supply tank is at the second position, and may not operate the ultrasonic generator when the water supply tank is not at the second position.

According to the above configuration, when water is not supplied from the water supply tank, the ultrasonic generator does not operate and the cleaning operation is not performed. Therefore, the unnecessary execution of the washing operation can be prevented.

Effects of the invention

According to the present invention, it is possible to provide an ultrasonic cleaning apparatus which enables a user to smoothly clean an object to be cleaned and which can improve user convenience.

The effects and significance of the present invention will be more apparent from the following description of the embodiments. However, the following embodiment is merely an example of the present invention, and the present invention is not limited to the contents described in the following embodiment.

Drawings

Fig. 1 is a perspective view of an ultrasonic cleaning apparatus according to an embodiment.

Fig. 2 is a perspective view of the ultrasonic cleaning apparatus according to the embodiment with the water storage unit removed from the main body.

Fig. 3 is a perspective view of the ultrasonic cleaning apparatus according to the embodiment with the drain tank removed from the water storage unit.

Fig. 4 is a side sectional view of the ultrasonic cleaning apparatus of the embodiment taken from the center position.

Fig. 5 is a main sectional view of the ultrasonic cleaning apparatus of the embodiment taken from the position of the ultrasonic generator.

Fig. 6 is a main sectional view of the ultrasonic cleaning apparatus cut away from the position of the water supply tank in a state where the water supply tank of the embodiment is at the separated position.

Fig. 7 is a main sectional view of the ultrasonic cleaning apparatus taken from the position of the water supply tank in a state where the water supply tank of the embodiment is in the inserted position.

Fig. 8 is a side sectional view of the water storage portion in a state where the water discharge container is attached of the embodiment.

Fig. 9 is a rear perspective view of the water storage unit as viewed from below according to the embodiment.

Fig. 10 (a) and (b) are a perspective view and a longitudinal sectional view, respectively, of the water supply tank of the embodiment.

Fig. 11 (a) and (b) are diagrams for explaining the configuration and detection operation of the tank position detection unit according to the embodiment.

Fig. 12 (a) to (c) are views for explaining the decontamination of the object to be cleaned by the ultrasonic cleaning apparatus according to the embodiment.

Description of the reference numerals

1: an ultrasonic cleaning device; 100: an ultrasonic cleaning section; 110: an ultrasonic wave generator; 200: a water storage part; 240; a water storage tank (water storage recess); 300: a main body portion; 314: a top surface member (main body top surface member); 340: a tank receiving member (escape prevention portion); 361: a microswitch (detection unit); 400: a water supply tank; 410: a water tank main body; 420: a top cover (tank top surface member); 421: a grip portion; 600: a control unit.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

< Structure of ultrasonic cleaning apparatus >

First, the structure of the ultrasonic cleaning apparatus 1 will be described.

Fig. 1 is a perspective view of an ultrasonic cleaning apparatus 1 according to the present embodiment. Fig. 2 is a perspective view of the ultrasonic cleaning apparatus 1 according to the present embodiment with the water storage unit 200 removed from the main body 300. Fig. 3 is a perspective view of the ultrasonic cleaning apparatus 1 according to the present embodiment with the drain tank 500 removed from the water storage unit 200. Fig. 4 is a side sectional view of the ultrasonic cleaning apparatus 1 of the present embodiment taken from the center position. Fig. 5 is a main sectional view of the ultrasonic cleaning apparatus 1 of the present embodiment taken from the position of the ultrasonic generator 110. Fig. 6 is a main sectional view of the ultrasonic cleaning apparatus 1 cut away from the position of the water supply tank 400 in a state where the water supply tank 400 is at a separated position according to the present embodiment. Fig. 7 is a main sectional view of the ultrasonic cleaning apparatus 1 cut away from the position of the water supply tank 400 in a state where the water supply tank 400 of the present embodiment is in the inserted position. Fig. 8 is a side sectional view of the water storage portion 200 in a state where the water discharge container 500 is attached according to the present embodiment. Fig. 9 is a rear perspective view of the water storage unit 200 of the present embodiment as viewed from below. Fig. 10 (a) and (b) are a perspective view and a longitudinal sectional view, respectively, of the water supply tank 400 of the present embodiment. Fig. 11 (a) and (b) are diagrams for explaining the configuration and detection operation of tank position detection unit 360 according to the present embodiment. In fig. 5, the second body member 312 is not illustrated as transparent.

The ultrasonic cleaning apparatus 1 is mainly used for removing sebum dirt adhering to sleeves and necklines of shirts and dirt locally adhering to articles to be cleaned, such as oil dirt adhering to work clothes, before washing by a full-automatic washing machine or a drum washing machine. The ultrasonic cleaning apparatus 1 is a so-called stationary type ultrasonic cleaning apparatus, and can be placed in various installation places such as a table, an operation table, and a top surface of a drum washing machine.

The ultrasonic cleaning device 1 includes: an ultrasonic cleaning unit 100, a water storage unit 200, a main body 300, a water supply tank 400, and a drain container 500. The ultrasonic cleaning unit 100 includes an ultrasonic generator 110 that generates ultrasonic waves. The main body 300 is installed at an installation site and holds the ultrasonic cleaning unit 100. The water reservoir 200 has a water reservoir 240 and is attached to the main body 300 at a position below the ultrasonic-wave generator 110. The water storage portion 200 can be detached from the main body 300 by a detachment operation in which the user pulls out the water storage portion 200 forward. The water supply tank 400 can store water to be supplied to the water storage tank 240. The drain container 500 can store water discharged from the water storage tank 240. The drainage receptacle 500 is attached to the water storage portion 200 and can be detached from the water storage portion 200 by a detaching operation in which the user pulls out the drainage receptacle 500 forward. In the present embodiment, the water stored in the water supply tank 400 and supplied to the water storage tank 240 is water containing detergent. Hereinafter, the water containing the detergent is referred to as "washing water".

The ultrasonic cleaning unit 100 includes: an ultrasonic generator 110, a holder 120, a housing 130, and a tip end cover 140. The ultrasonic generator 110 includes an ultrasonic vibrator 111 and a vibration horn 112 coupled to the ultrasonic vibrator 111. The vibration horn 112 is formed of a metal material having conductivity, and has a shape that is tapered toward the tip end side. The distal end surface 112a of the vibration horn 112 has an elongated rectangular shape. The ultrasonic wave generator 110 generates an ultrasonic wave from the tip of the vibration horn 112. The holder 120 holds the ultrasonic-wave generator 110.

The housing 130 is formed of a resin material and has a rectangular parallelepiped box shape elongated in the front-rear direction. A fitting portion 131 is provided in the housing 130. The ultrasonic generator 110 is housed in the housing 130, and is attached to the attachment portion 131 via the holder 120. The vibration horn 112 protrudes downward from the lower surface of the distal end portion of the housing 130. A tip end cover 140 is attached to the lower surface of the tip end portion of the housing 130. The portion of the vibration horn 112 protruding from the housing 130 is covered with the tip end cover 140, and the tip end portion is exposed from the tip end cover 140.

The water reservoir 200 is formed of a resin material, and is constituted by: a front water storage member 210 having a rectangular parallelepiped box shape with an open lower surface; a rear water storage member 220 protruding rearward from an upper portion of a rear surface of the front water storage member 210; and a receiving member 230 receiving the drain container 500. The housing member 230 is formed separately from the front water storage member 210 and the rear water storage member 220, and is attached to the front water storage member 210 by screws or the like.

A water storage tank 240 is formed on the upper surface of the front water storage member 210, and the water storage tank 240 has a shape gently recessed toward the center. The water storage tank 240 corresponds to a water storage recess of the present invention. The water storage tank 240 has inclined surfaces 242 that are inclined downward toward the bottom surface 241 on both the left and right sides of the substantially square bottom surface 241, and inclined surfaces 243 that are inclined downward toward the bottom surface 241 on both the front and rear sides of the bottom surface 241. The

inclined surfaces

242 and 243 are curved surfaces having a gradual slope as they approach the bottom surface 241. The water storage tank 240 is formed with a groove 244 extending across the center thereof in the front-rear direction. The bottom surface 244a of the groove 244 is deeper than the bottom surface 241 of the water storage tank 240.

In the rear water storage member 220, a water supply tank 250 is formed by a wall portion 251 formed in a circular shape at a position rearward of the water storage tank 240. A cylindrical protrusion 252 having a sharp tip is formed at the center of the bottom surface 250a of the water supply tank 250. The water supply tank 250 is connected to the rear end of the tank 244 of the water storage tank 240 via a tank-like water supply passage 253. The periphery of the water supply tank 250 is surrounded by the outer tank 260. Further, in the rear water storage member 220, a first fitting recess 221 and a second fitting recess 222 having a square shape are formed on the left side and the right side of the outer tub 260, respectively. A claw portion 223 protruding upward is formed on the bottom surface of the first fitting recess 221.

The front water storage member 210 is provided with a water discharge port 270 in front of the water storage tank 240. The drain port portion 270 is connected to the front end of the tank 244 of the water storage tank 240. A cylindrical drain port 271 protruding downward is formed in the bottom surface of the drain port portion 270. A projection 272 having a hole 272a is provided in the center of the drain port 271. Both sides of the projection 272 are connected to the inner peripheral edge of the drain port 271 via two ribs 273.

The drain port portion 270 is provided with a drain mechanism 280. The drain mechanism 280 includes: an operation button 281, an operation pin 282, a valve body 283, and a coil spring 284. The operation button 281 has a rectangular shape in plan view. The operation pin 282 is integrally formed on the back side of the operation button 281 and protrudes downward. The operation pin 282 is movably inserted through the hole portion 272a of the protrusion 272 up and down. The valve body 283 is formed of an elastic material such as rubber and is attached to the lower end of the operation pin 282. The coil spring 284 is disposed between the back side of the operation button 281 and the peripheral edge of the drain port 271 at the bottom surface of the drain port portion 270. The coil spring 284 is in a compressed state, the operation button 281 and the operation pin 282 are pushed up by the coil spring 284, and the valve body 283 closes the drain port 271.

The bottom surface 250a of the water supply tank 250, the bottom surface 253a of the water supply passage 253, and the bottom surface 244a of the tank 244 of the water storage tank 240 are gradually inclined downward toward the drain portion 270. Thus, water is easily drained from the water storage tank 240 and the water supply tank 250 to the drain port 270.

An opening 211 is formed in the front surface of the front water storage member 210 over almost the entire lower portion. A housing member 230 is disposed behind the opening 211. The housing member 230 has a substantially horizontally long rectangular parallelepiped box shape, and has an open front surface. The housing member 230 has a connection port 231 on the upper surface, and the connection port 231 is connected to the drain port 271 of the drain port 270. Thereby, the drain port 271 faces the inside of the housing member 230 from above.

As shown in fig. 9, the rear surface of the front water storage member 210 has an opening 212 formed almost entirely below the rear water storage member 220. Further, a shaft 213 is provided near the opening 212 inside the left and right side surfaces of the front water storage member 210. Further, a hook 232 is formed at the center of the upper end on the rear surface of the housing member 230. A claw 233 protruding downward is formed at the tip of the hook 232.

The drain container 500 has a substantially horizontally long rectangular parallelepiped box shape, and includes a container main body 510 having an open upper surface, and a cover 520 covering the upper surface of the container main body 510. The container body 510 has a handle portion 511 provided at the center of the front surface. The lid 520 has an oval opening 521.

The drainage container 500 is housed inside the housing member 230 through the opening portion 211, and is attached to the water storage portion 200. In a state where the drain container 500 is housed in the housing member 230, the opening 521 is located at a position directly below the drain port 271. The opening 521 has a size significantly larger than the drain port 271.

The main body 300 includes a rectangular parallelepiped exterior body 310 elongated in the vertical direction and the horizontal direction. Exterior body 310 is formed of a resin material, and is composed of first body member 311, second body member 312, bottom surface member 313, and top surface member 314. The first body member 311 constitutes the lower and rear surfaces of the front surface, the left side surface, and the right side surface of the exterior body 310. Second body member 312 is transparent and constitutes the upper side of the front surface, left side surface, right side surface, and rear surface of exterior body 310. The upper side of the rear surface of the exterior body 310 is in a state where the rear surface of the first body member 311 overlaps the outer side of the rear surface of the second body member 312 (see fig. 4). The bottom surface member 313 and the top surface member 314 constitute the bottom surface and the top surface of the package body 310, respectively. The bottom surface member 313 is provided with four legs 313 a. The top surface member 314 corresponds to a main body top surface member of the present invention.

The rear end of the housing 130 of the ultrasonic cleaning unit 100 is fixed to the center of the front surface of the outer case 310. Thereby, the ultrasonic cleaning unit 100 is held by the main body 300.

An attachment platform 320 to which the water storage portion 200 is attached is provided integrally with the outer body 310, i.e., the first body member 311, at a lower portion of the front surface of the outer body 310. The mounting table 320 has a rectangular parallelepiped box shape with an open bottom. There is no wall between the front surface of the exterior body 310 and the rear surface of the mounting deck 320, and the interior of the exterior body 310 is connected to the interior of the mounting deck 320. The bottom surface of the mounting table 320 is covered with a bottom surface member 313 extending forward.

The mounting base 320 has rail grooves 321 formed on both left and right sides thereof and extending in the front-rear direction. Further, in the mounting deck 320, a rib 323 extending in the left-right direction is formed in a recess 322 formed in the center portion of the front end. The rib 323 constitutes the movement preventing mechanism M together with the hook portion 232 of the water storage portion 200.

An insertion opening 315 through which the rear water storage member 220 of the water storage portion 200 is inserted is formed above the attachment base 320 on the front surface of the exterior body 310. Inside the outer case 310, a groove housing chamber 316 is provided inside the insertion port 315.

The water storage portion 200 slides from the front to the rear to be attached to the attachment table 320. At this time, the shaft portion 213 of the water storage portion 200 is inserted into the rail groove 321 of the attachment base 320, and moves rearward in the rail groove 321. The rail groove 321 has a structure having an inclined portion in the middle and a lower front side and a higher rear side, and the water reservoir 200 sliding along the rail groove 321 is raised to a final height at a position where the protrusion 252 of the water supply tank 250 exceeds the vibration horn 112 of the ultrasonic generator 110. Therefore, the tip end portion of the vibration horn 112 is prevented from contacting the rear end portion of the water reservoir portion 200, the protrusion portion 252. When the water storage portion 200 is attached to the attachment table 320, the claw portions 233 of the hook portions 232 can hit the ribs 323 of the concave portions 322. The rear side of the claw portion 233 is inclined, and the claw portion 233 climbs over the rib 323 guided by the inclination. Then, when the water storage portion 200 is attached to the attachment table 320, the claw portions 233 engage with the ribs 323. This prevents the water storage unit 200 from moving forward in the separating direction. Further, when the water storage portion 200 is attached to the attachment table 320, the rear water storage member 220 is housed in the tank housing chamber 316. This enables water to be supplied to the water storage tank 240 through the water supply tank 250.

The package 310 is provided with a partition wall 317 that vertically partitions the interior of the package 310 and also serves as the top surface of the tank accommodating chamber 316. Above partition wall 317 in outer package 310 is tank accommodating chamber 318. The water tank storage chamber 318 stores a water supply tank 400.

As shown in (a) and (b) of fig. 10, the water supply tank 400 includes: a tank main body 410, a top cover 420, and a cover 430. The tank main body 410, the top cover 420, and the cover 430 are formed of a resin material. The cover 430 includes an opening/closing valve mechanism 440.

The tank main body 410 is a transparent container having an upper portion 410a in a square cylindrical shape and a lower portion 410b in a cylindrical shape. The upper end 410c of the tank body 410 is inwardly contracted to have a smaller outer diameter. A water inlet/outlet 412 is formed in the center of the bottom surface of tank body 410, and a cylindrical connecting port 413 is provided around inlet/outlet 412 so as to protrude downward. In the water supply tank 400, i.e., the tank main body 410, washing water is generated by mixing detergent into water. Therefore, in the lower portion 410b of the sump body 410, a first scribed line 414 indicating a supply amount target line of water and a second scribed line 415 indicating a supply amount target line of detergent are formed.

The top cover 420 has a box shape with a lower surface opening that is thin in the vertical direction, and has the same shape and size as the upper portion 410a of the tank main body 410 in plan view. The top cover 420 is fitted into the upper end portion 410c of the tank main body 410 from above, and constitutes the top surface of the water supply tank 400. The top cover 420 is formed of the same material as the top member 314 of the exterior body 310, and has the same color, gloss, and the like as the top member 314. The top cover 420 corresponds to the tank top surface member of the present invention.

The top cover 420 is formed with a grip 421 by recessing a part of the right and left outer surfaces. A plurality of recesses 416 are formed on the outer side surface of the upper end portion 410c of the water tank main body 410, and claw portions 422 formed on the inner side surface of the top cover 420 are engaged with the respective recesses 416. Thereby, the top cover 420 is fixed to the tank main body 410.

A cover 430 is screw-fitted to the connection port 413 to cover the inlet/outlet 412. A gasket 450 for water sealing is interposed between the cover 430 and the connection port 413. An outflow port 431 is formed in the bottom surface of the cover 430. A projection 432 having a hole portion 432a is provided at the center of the outflow port 431. Both sides of the projection 432 are connected to the peripheral edge of the outlet 431 by two ribs (not shown).

The opening and closing valve mechanism 440 includes a valve body 441, a pin 442, and a coil spring 443. The valve body 441 is formed of an elastic material such as rubber. The pin 442 is made of a metal material or a resin material and is inserted through the hole 432a of the boss 432 so as to be movable up and down. A valve body 441 is fitted to an upper end portion of the pin 442. The lower end portion of the pin 442 has a larger outer diameter than the other portions, and forms a flange portion 442a, and a coil spring 443 is disposed between the flange portion 442a and the boss 432. The coil spring 443 is compressed, the pin 442 is pressed downward by the coil spring 443, and the valve body 441 closes the outlet 431.

A cylindrical discharge port 433 is formed on the outer bottom surface of the cover 430 so as to surround the pin 442. The outlet of the drain port portion 433 is a drain port 401 for final water of the water supply tank 400, i.e., washing water.

A tank inlet 319 is provided on the top surface of the outer case 310. The tank inlet 319 has a shape corresponding to the outer shape of the top cover 420 of the water supply tank 400. The water supply tank 400 is accommodated in the tank accommodating chamber 318 through the tank inlet 319.

A tank holding member 330 made of resin is provided in the tank housing chamber 318. The tank holding member 330 is composed of a first holding member 331 and a second holding member 332, wherein the first holding member 331 is a transparent member surrounding the periphery of the water supply tank 400, and the second holding member 332 is a member supporting the first holding member 331 at the upper, lower and back portions. The upper end of the first holding member 331 is connected to the tank inlet 319. The water supply tank 400 is held by the tank holding member 330 in a movable manner between a separated position where the discharge port 401 is distant from the water supply tank 250 as shown in fig. 6 and an inserted position where the discharge port 401 is inserted into the water supply tank 250 as shown in fig. 7. The separated position corresponds to the first position of the present invention, and the inserted position corresponds to the second position of the present invention.

The second body member 312, the first holding member 331, and the tank main body 410 are transparent, and thus, a user can confirm the remaining amount of the washing water in the water supply tank 400 from the outside. The second body member 312, the first holding member 331, and the tank main body 410 may have transparency through which the user can visually recognize the degree of the remaining amount of the washing water, and may be colored.

A tank receiving member 340 made of resin is provided at a lower portion in the tank accommodating chamber 318. The tank receiving member 340 corresponds to a detachment prevention portion of the present invention. A cylindrical receiving portion 341 is formed in the center of the tank receiving member 340. In the receiving portion 341, the intermediate portion has a step portion 341a, and the outer diameter of the lower side of the step portion 341a is small. A part of the cover 430 of the water supply tank 400 is received below the stepped portion 341a of the receiving portion 341. In this state, the tip end portion of the discharge port 433 of the cover 430 protrudes downward beyond the receiving portion 341. In the tank receiving member 340, a first fitting projection 342 having a square tubular shape is formed on the left side of the receiving portion 341 so as to project downward, and a second fitting projection 343 having a square tubular shape is formed on the right side of the receiving portion 341 so as to project downward. A coil spring 344 is disposed around the receiving portion 341 and between the tank receiving member 340 and the partition wall 317. The tank receiving member 340 is kept in a state of being lifted from the partition wall 317 as the bottom surface of the tank accommodating chamber 318 by the elastic force of the coil spring 344.

The partition wall 317 has a central opening 317a, a left opening 317b, and a right opening 317c connected to the tank accommodating chamber 316 at positions corresponding to the receiving portion 341, the first fitting projection 342, and the second fitting projection 343, respectively. In addition, a cylindrical left guide portion 317d and a cylindrical right guide portion 317e are formed around the left opening portion 317b and the right opening portion 317c, respectively, of the partition wall 317. The first fitting projection 342 is inserted into the left guide 317d, and the second fitting projection 343 is inserted into the right guide 317 e. The left guide portion 317d and the right guide portion 317e are guides when the tank receiving member 340 moves up and down.

The water tank receiving member 340 pushes up the water supply tank 400 to the separated position by the elastic force of the coil spring 344, and when the water supply tank 400 is pushed down, the water tank receiving member 340 is pushed down by the water supply tank 400 to move down. When the feed water tank 400 reaches the inserted position, the first fitting projection 342 enters the tank accommodating chamber 316 through the left opening 317b, and fits in the first fitting recess 221 of the water storage part 200 in the tank accommodating chamber 316. Similarly, the second fitting protrusion 343 enters the tank housing chamber 316 through the right opening 317c, and is fitted into the second fitting recess 222 of the water storage part 200 in the tank housing chamber 316.

In the first fitting protrusion 342 of the water tank receiving member 340, a locking means 350 for locking the water supply tank 400 to the insertion position in advance is provided. The lock device 350 includes a lever 352 having holding pieces 351 on both sides of a distal end portion, a housing 353 into which the lever 352 is inserted and withdrawn, and an alternative mechanism not shown. When holding piece 351 abuts from above against claw portion 223 of first fitting recess 221 of water storage portion 200 and lever 352 is pushed into housing 353 by claw portion 223, claw portion 223 is caught from both sides by holding piece 351 and lever 352 is held inside housing 353 by the action of the alternate mechanism. Thereby, the claw portion 223 does not disengage from the locking device 350. When the lever 352 is pushed in again by the claw 223 from this state, the holding is released by the action of the alternate mechanism, and when the pushing-in force is released, the distal end portion of the lever 352 protrudes from the housing 353, and the holding piece 351 is released. Thereby, the claw portion 223 is disengaged from the locking device 350.

A tank position detection unit 360 is provided at a deep position on the left side of the lower portion in the outer case 310. As shown in fig. 11 (a) and (b), the tank position detecting unit 360 is located below the tank receiving member 340, and includes a micro switch 361 and a switch holding unit 362. The micro switch 361 detects whether the water supply tank 400 is in an inserted position, i.e., in a state where the washing water is supplied from the water supply tank 400. The microswitch 361 corresponds to the detection unit of the present invention. The microswitch 361 includes a switch section 363 and an operation lever 364 for operating the switch section 363. The switch holding portion 362 holds the micro switch 361 and is attached to the first body member 311 of the exterior body 310. The tank receiving member 340 is provided with an operation block 345 extending to the microswitch 361 side. The operation block 345 is provided with an opening 345 a.

As shown in fig. 11 (a), when the supply water tank 400 is at the separated position and the tank receiving member 340 is in the raised state, the operating lever 364 of the microswitch 361 is pushed toward the switch 363 by the lower end of the operating block 345, and the switch 363 is pushed down by the operating lever 364. Thereby, an on signal is output from the micro switch 361. The operating lever 364 generates an elastic force in a direction away from the switch section 363. As shown in fig. 11 (b), when the supply water tank 400 is moved to the insertion position and the tank receiving member 340 is pushed down, the operating lever 364 of the microswitch 361 moves away from the switch portion 363 and moves back into the opening 345a of the operating block 345, and the switch portion 363 returns to the initial position. Thereby, an off signal is output from the micro switch 361.

An operation panel 370 is provided on the top surface of the outer case 310 on the right side of the tank inlet 319. The operation panel 370 is provided with a power button 371 and an operation button 372. The power button 371 is an operation button for turning on and off the power supply to the ultrasonic cleaning apparatus 1. The operation button 372 is an operation button for starting and stopping the washing operation.

A control unit 600 is disposed at a lower portion in the main body 300. The control unit 600 includes a microcomputer or the like, and controls the ultrasonic generator 110. The control unit 600 receives an on signal and an off signal output from the microswitch 361. Further, the control unit 600 receives an operation signal corresponding to the operation of the operation button 372.

< action of ultrasonic cleaning device >

Next, the operation of the ultrasonic cleaning apparatus 1 will be described.

When the washing operation is not performed, as shown in fig. 6, the water supply tank 400 is pushed up by the tank receiving member 340 and is held at the separated position in the tank housing chamber 318. At this time, the valve body 441 of the water supply tank 400 is in a closed state, and the washing water is not discharged from the water supply tank 400. The top surface of the water supply tank 400 protrudes upward from the top surface of the main body 300, and the top cover 420 of the water supply tank 400 is exposed to the outside. In this state, the user can take out the water supply tank 400 to the outside by grasping the grip 421 with fingers.

When the washing operation is performed and the water supply tank 400 does not contain washing water, the user takes out the water supply tank 400 to the outside and turns it upside down, and opens the cover 430. The user puts the liquid detergent to the position of the second scribed line 415 after adding water to the water supply tank 400 to the position of the first scribed line 414, and after closing the cover 430, gently shakes the water supply tank 400 to mix the liquid detergent with the water. Thereby, washing water is generated in the water supply tank 400. Thereafter, the user drops the water supply tank 400 into the main body 300 again.

The user presses the top surface of the top cover 420, i.e., the top surface of the water supply tank 400, with a finger, and presses the water supply tank 400 downward. The water supply tank 400 and the tank receiving member 340 are lowered against the elastic force of the coil spring 344, and the water supply tank 400 reaches the insertion position. As shown in fig. 7, the outlet port 433 enters the tank accommodating chamber 316 together with the receiving portion 341 through the central opening 317a, and the outlet port 401 of the water supply tank 400 is inserted into the water supply tank 250. The first fitting protrusion 342 and the second fitting protrusion 343 enter the groove housing chamber 316 through the left opening 317b and the right opening 317c, respectively, and are fitted into the first fitting recess 221 and the second fitting recess 222, respectively. Thus, the water storage portion 200 cannot be pulled out forward, and the water storage portion 200 cannot be detached from the mounting base 320, that is, the main body 300. On the other hand, the lock device 350 performs a locking function between the first fitting protrusion 342 and the first fitting recess 221. That is, the claw 223 of the water storage portion 200 is pushed into the housing 353 while being held by the holding piece 351, and is not disengaged from the lock device 350. Accordingly, the elastic force of the coil spring 344 does not lift the tank receiving member 340, and thus, the water supply tank 400 is left at the insertion position.

When the water supply tank 400 is lowered to the insertion position, the pin 442 of the water supply tank 400 contacts the protrusion 252 of the water supply groove 250 and is pushed up against the urging force of the coil spring 443. Accordingly, the valve body 441 is separated from the outlet 431, the outlet 431 is opened, and the washing water in the water supply tank 400 is discharged from the discharge port 401. The discharged washing water is received by the water supply tank 250 and is sent to the water storage tank 240 through the water supply passage 253. After the storage of the washing water in the water storage tank 240, the water level in the water supply tank 250 rises together with the water level in the water storage tank 240. As shown by the one-dot chain line in fig. 4, when the water level in the water supply tank 250 rises to the level of the drain port 401 of the water supply tank 400 and the drain port 401 is blocked by the washing water, the valve body 441 is kept open by the balance between the air pressure in the water supply tank 400 and the external air pressure, and the water supply from the water supply tank 400 is stopped. Even if water splash or the like occurs during water supply and the washing water splashes out of water supply tank 250, the splashed washing water is collected in outer tank 260, and therefore, the washing water is less likely to leak out of water storage unit 200.

When the washing water is stored in the sump 240, the user places a dirt-attached portion of the object to be washed, for example, a collar portion of a shirt, on the sump 240, i.e., between the sump 240 and the vibration horn 112 of the ultrasonic generator 110. The object to be washed is immersed in the washing water stored in the water storage tank 240, and the washing water permeating the inside of the object to be washed seeps out to the surface. A thin water layer is formed on the surface of the object to be cleaned, and the vibration horn 112 is in contact with the water layer. When the water level in the water storage tank 240 drops and the water level in the water supply tank 250 drops due to the water absorbed by the object to be washed, and the drain port 401 of the water supply tank 400 is no longer blocked by the washing water, the washing water is supplied from the water supply tank 400 to the water supply tank 250, that is, the water storage tank 240, until the drain port 401 is blocked by the washing water again. This maintains the water level, i.e., the water amount, in the water storage tank 240 in an appropriate state.

The user presses the operation button 372 to start the washing operation.

When the water supply tank 400 is in the insertion position and the washing water is supplied from the water supply tank 400, the state is detected by the micro switch 361, and an off signal is output from the micro switch 361 to the controller 600. In this case, the control unit 600 energizes the ultrasonic transducer 111 to operate the ultrasonic generator 110. Thereby, the cleaning operation is started.

When the water supply tank 400 is not in the insertion position, that is, in the separation position, and is not in a state of supplying the washing water from the water supply tank 400, the state is detected by the micro switch 361, and an on signal is output from the micro switch 361 to the controller 600. In this case, the control unit 600 does not energize the ultrasonic transducer 111 and does not operate the ultrasonic generator 110. Thus, the washing operation is not started in a state where the washing water is not supplied to the water storage tank 240.

Fig. 12 (a) to (c) are views for explaining the decontamination of the object to be cleaned by the ultrasonic cleaning apparatus 1.

When the ultrasonic generator 110 is operated, ultrasonic waves are generated from the distal end of the vibration horn 112, and the ultrasonic vibrations are transmitted to the washing water inside the object to be washed via the washing water around the vibration horn 112. As shown in fig. 12 (a), inside the object to be cleaned, pressure reduction and pressurization are alternately generated by the action of ultrasonic vibration, and a vacuum cavity is generated in a portion where the pressure is reduced. That is, many cavities are present in the contaminated portion of the object to be cleaned. Next, as shown in fig. 12 (b), when the pressure of the cavity portion becomes high and the cavity is broken by the pressure and broken, a shock wave is generated to the contaminated portion of the object to be cleaned. By this shock wave, dirt is separated from the object to be cleaned. As shown in fig. 12 (c), the ultrasonic vibration from the vibration horn 112 generates a water flow from the inside of the object to be cleaned into the water storage tank 240, and dirt separated from the object to be cleaned is discharged into the water storage tank 240 by the water flow. In the water storage tank 240, the above-described water flow causes convection, and therefore dirt is easily peeled off from the object to be cleaned. Further, dirt is easily peeled off from the object to be cleaned by the action of the detergent contained in the washing water, and the dirt is not easily reattached to the object to be cleaned. In this way, the dirt is removed from the object to be cleaned.

In order to place the contaminated portion of the object to be cleaned at the position of the ultrasonic generator 110, the user mainly moves the object to be cleaned in the left-right direction. In the ultrasonic cleaning apparatus 1 of the present embodiment, since the ultrasonic cleaning unit 100 is held by the main body 300, the user can hold the object to be cleaned with both hands without holding the ultrasonic cleaning unit 100 with hands. Thus, the user can smoothly move the object to be cleaned, compared with the case of holding the object with one hand. Further, the water storage portion 200 is attached to the main body portion 300, and therefore, when the user moves the object to be washed, it is not easy to occur that the water storage portion 200 moves together with the object to be washed. Further, since the left and right side surfaces of the water storage tank 240 are the inclined surfaces 242, the object to be washed moves along the two inclined surfaces 242 and the bottom surface 241, and thus the user can smoothly move the object to be washed. In particular, since the inclined surface 242 is a curved surface whose inclination becomes gradually gentle as it approaches the bottom surface 241, the object to be cleaned can be moved more smoothly.

When the washing of the object to be washed is completed, the user presses the operation button 372 again. The control unit 600 stops the operation of the ultrasonic generator 110, and the cleaning operation is ended. Thereafter, the user slightly presses the water supply tank 400 downward with a finger. The tank receiving member 340 is slightly lowered together with the water supply tank 400, and the first fitting protrusion 342 is slightly lowered. In this way, when the finger is separated from the water supply tank 400, the claw portion 223 in the locking means 350 is released from the holding of the holding piece 351 to be disengaged from the locking means 350. Accordingly, the fixing by the locking device 350 is released, and thus the tank receiving member 340 is lifted by the elastic force of the coil spring 344 and the water supply tank 400 is moved to the separated position by being lifted by the tank receiving member 340. The pin 442 moves downward, and the outlet 431 is closed by the valve body 441, so that water cannot be supplied from the water supply tank 400.

In the case where the above-described operation of pushing in the feed water tank 400 is performed and the feed water tank 400 is pushed up by the tank receiving member 340 and moved to the separated position during the washing operation, the on signal is output from the micro switch 361. The washing operation is automatically stopped by the control part 600 because it is considered that the water supply of the water supply tank 400 is not normally performed. Here, when the water supply tank 400 is in the insertion position, as shown in fig. 7, the top surface of the water supply tank 400 is flush with the top surface of the main body 300 and does not protrude upward beyond the top surface of the main body 300. Thus, the user cannot grasp the water supply tank 400 with his or her fingers and cannot perform such an operation as to pull up the water supply tank 400. Accordingly, in a state where the tank receiving member 340 is in a lowered state and the micro switch 361 detects that the water supply tank 400 is in the inserted position, it is not easy to lift and remove only the water supply tank 400. Therefore, it is not easy to continue the washing operation in a state where water cannot be supplied from the water supply tank 400.

When the tank receiving member 340 ascends together with the water supply tank 400, the first and second

fitting protrusions

342 and 343 are disengaged from the first and second

fitting recesses

221 and 222. This allows the water storage portion 200 to be detached from the mounting platform 320, i.e., the main body 300.

When the washing operation is finished, the user presses the operation button 281. As shown by the broken line in fig. 8, when the operation button 281 is pressed, the valve body 283 moves downward together with the operation pin 282, and the valve body 283 separates from the drain port 271 to open the drain port 271. The washing water stored in the water storage tank 240 and the water supply tank 250 is discharged through the drain port 271. The water discharged from the drain port 271 flows into the drain container 500 through the opening 521 and is stored in the drain container 500. When the washing water is completely discharged from the water storage tank 240 and the water supply tank 250, the user releases the operation button 281. The valve body 283 is moved upward together with the operation pin 282 by the elastic force of the coil spring 284, and the valve body 283 closes the drain port 271.

The user grips the handle portion 511 to pull out the drainage container 500 in the detachment direction, i.e., forward, and removes the drainage container 500 from the reservoir portion 200 as shown in fig. 3. When the drain container 500 is pulled out forward, a force is applied to the water storage portion 200 in the direction of the separation, i.e., forward. However, the water storage unit 200 is prevented from moving forward by the movement preventing mechanism M. This prevents the water storage unit 200 from being detached from the main body 300 when the user wants to remove the drainage container 500. The user takes the removed drain container 500 to a place where the user can discard, such as a washbasin, and discards the washing water stored in the drain container 500.

The drain container 500 has a structure in which the lid 520 is fitted into the container body 510 from above, and the user can remove the lid 520 upward from the container body 510 by, for example, hooking the opening 521 with a finger. Thus, the user can clean the inside of the container body 510 with the lid 520 removed.

When the user cleans the water storage tank 240 and the water supply tank 250, which are the water storage unit 200, the water storage unit 200 is detached from the main body 300 as shown in fig. 2. At this time, first, as a release operation, the user slightly lifts the front side of the water storage unit 200. The water storage portion 200 slightly rotates about the shaft portion 213. Thus, in the movement preventing mechanism M, the engagement between the claw portions 233 of the hook portions 232 and the ribs 323 is released. The user moves the water storage section 200 forward while keeping the tilt until the claw 233 is positioned in front of the rib 323, and then resumes the original posture of the water storage section 200 and continues the movement. Thus, the water storage portion 200 is detached from the main body 300. The user performs an operation such as taking the detached water storage unit 200 to a toilet, and washes the water storage tank 240 and the water supply tank 250. Further, the user can dispose of the washing water and wash the water storage portion 200 while leaving the washing water in the water storage tank 240 and the water supply tank 250 and directly removing the water storage portion 200.

Here, the following case can be assumed: in a state where the water storage unit 200 is detached, the user erroneously starts the washing operation, and the water supply tank 400 is pushed into the insertion position. In this case, even if the tank receiving member 340 is pushed down together with the supply water tank 400, the claw portion 223 provided in the water storage portion 200 does not exist in the tank accommodating chamber 316, and therefore, the claw portion 223 is not held by the lock device 350, and the lock function of the lock device 350 cannot be exhibited. Therefore, the water supply tank 400 cannot be left at the insertion position and returns to the separated position.

< Effect of the present embodiment >

As described above, according to the present embodiment, the ultrasonic cleaning unit 100 is held by the main body 300, and thus the user can hold the object to be cleaned with both hands. This allows the user to smoothly move the object to be cleaned. Further, the water storage portion 200 is attached to the main body portion 300, and therefore, when moving the object to be cleaned, the water storage portion 200 is not easily moved together with the object to be cleaned, and a situation where water is dropped from the water storage portion 200 does not easily occur. Further, when the water supply tank 400 is located at the separated position where the washing water is not discharged, the top surface of the water supply tank 400 protrudes upward from the top surface of the main body 300, and therefore, the user can easily take out the water supply tank 400 from the main body 300 by grasping the portion exposed to the outside of the water supply tank 400. On the other hand, when the water supply tank 400 is in the insertion position for discharging the washing water, the top surface of the water supply tank 400 does not easily protrude upward from the top surface of the main body 300, and therefore, the user does not easily take out the water supply tank 400 from the main body 300. This makes it difficult to take out the water supply tank 400 by mistake during the cleaning operation of the ultrasonic cleaning apparatus 1.

As described above, according to the present embodiment, the user can smoothly clean the object to be cleaned using the ultrasonic cleaning apparatus 1, and improvement in user convenience can be expected.

Further, according to the present embodiment, when the water supply tank 400 is in the insertion position, the top surface of the water supply tank 400 and the top surface of the main body 300 are positioned on the same plane, and thus, it is less easy for the user to take out the water supply tank 400 from the main body 300. Further, the top surface of the water supply tank 400 and the top surface of the main body 300 are flat as a whole, and therefore, the ultrasonic cleaning apparatus 1 is beautiful when used.

Further, according to the present embodiment, since the grip portion 421 is provided on the ceiling cover 420 exposed from the main body 300 when the water supply tank 400 is located at the separated position, the user can easily grip the water supply tank 400 when taking out the water supply tank 400 from the main body 300.

Further, according to the present embodiment, the following configuration is adopted: the main body 300 includes a top surface member 314 constituting a top surface of the main body 300, and the water supply tank 400 includes a tank body 410 and a top surface cover 420 fitted to the top surface of the tank body 410 and constituting the top surface of the water supply tank 400. Thus, the top cover 420 and the top member 314 have the same color and the same gloss, and the top surface of the main body 300 and the top surface of the water supply tank 400 have a uniform feeling. Further, since the tank main body 410 does not need to be colored with respect to the top surface of the main body 300, it can be formed of a transparent material, and a user can confirm the washing water stored in the tank main body 410.

Further, according to the present embodiment, since the water storage portion 200 can be detached from the main body 300, the water storage portion 200 can be easily cleaned. Further, since the water storage portion 200 is fixed to the main body 300 when the water supply tank 400 is in the insertion position and the water storage portion 200 is released from the main body 300 when the water supply tank 400 is in the separation position, the user can detach the water storage portion 200 from the main body 300 in a state where water supply from the water supply tank 400 is difficult.

Further, according to the present embodiment, when the water supply tank 400 is located at the separated position and is not in a state where the washing water is supplied from the water supply tank 400, the ultrasonic generator 110 is not operated and the washing operation is not performed. Therefore, the unnecessary execution of the washing operation can be prevented.

While the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications other than those described above may be made to the embodiments of the present invention.

For example, in the above embodiment, the water stored in the water supply tank 400 and supplied to the water storage tank 240 is water containing detergent, but may be water containing no detergent. In this case, the cleaning operation may be performed by previously coating the soiled portion of the object to be cleaned with the detergent.

Further, in the above embodiment, the water storage portion 200 is detachably attached to the main body portion 300. However, the water storage portion 200 may not be detached from the main body 300. For example, the water storage portion 200 may be formed integrally with the attachment table 320 and thus the main body 300.

Further, in the above embodiment, the housing 130 of the ultrasonic cleaning unit 100 is disposed as a member separate from the main body 300. However, the housing 130 may be formed integrally with the body 300.

Further, in the above embodiment, the water supply tank 400 is housed in the main body 300 such that the top surface of the water supply tank 400 is flush with the top surface of the main body 300 when the water supply tank 400 is in the inserted position. However, if the top surface of the water supply tank 400 is lower than that of the water supply tank 400 at the separated position when the water supply tank 400 is at the inserted position, the grip 421 may slightly protrude from the top surface of the main body 300 to such an extent that it is not substantially exposed to the outside, for example. Conversely, when the water supply tank 400 is in the insertion position, the top surface of the water supply tank 400 may be recessed from the top surface of the main body 300.

Further, in the above embodiment, the water supply tank 400 has a structure in which the top surface of the tank main body 410 is covered with the top cover 420. However, the top cover 420 is not necessarily provided to the water supply tank 400. In this case, the top surface of the water supply tank 400 is formed by the bottom surface of the tank main body 410.

Further, in the above embodiment, the micro switch 361 indirectly detects that the water supply tank 400 is located at the insertion position via the tank receiving member 340 by contact with the operation block 345 of the tank receiving member 340. However, a structure in which the water supply tank 400 is partially in contact with the micro switch 361 may be adopted such that the water supply tank 400 is directly detected to be in the inserted position by the micro switch 361.

Further, in the above embodiment, the tank receiving member 340, which is lowered together with the water supply tank 400, realizes the detachment prevention portion that fixes the water storage portion 200 when the water supply tank 400 is at the insertion position. However, the structure of the separation preventing portion is not limited to the structure of the above embodiment, and other structures may be adopted.

Further, the water supply structure for supplying water from the water supply tank 400 to the water storage tank 240 is not limited to the above-described embodiment, and other water supply structures may be employed.

The embodiments of the present invention can be modified in various ways as appropriate within the scope of the technical idea shown in the claims.

Claims

An ultrasonic cleaning device is characterized by comprising:

an ultrasonic cleaning unit including an ultrasonic generator for generating ultrasonic waves;

a main body part which is arranged at an installation place and holds the ultrasonic cleaning part;

a water storage section provided integrally with the main body section at a position below the ultrasonic generator and having a water storage recess for storing water used for immersing an object to be cleaned; and

a water supply tank housed in the main body portion and storing water to be supplied to the water storage recess,

the water supply tank is movable in an up-and-down direction between a first position where water is not discharged and a second position where water is discharged,

a top surface of the water supply tank protrudes upward more than a top surface of the main body when the water supply tank is located at the first position,

when the water supply tank is located at the second position, a position of a top surface of the water supply tank becomes lower than when the water supply tank is located at the first position.
An ultrasonic cleaning device according to claim 1,

when the water supply tank is located at the second position, the top surface of the water supply tank and the top surface of the main body part are located on the same plane.
An ultrasonic cleaning device according to claim 1 or 2,

the main body portion includes a main body top surface member constituting a top surface of the main body portion,

the water supply tank includes a tank body storing water and a tank top surface member fitted to a top surface of the tank body and constituting the top surface of the water supply tank.
An ultrasonic cleaning device according to any one of claims 1 to 3,

a grip portion is provided at a portion of the water supply tank exposed from the main body portion when the water supply tank is located at the first position.
An ultrasonic cleaning device according to any one of claims 1 to 4,

the water storage portion is detachably attached to the main body portion,

the ultrasonic cleaning device further includes: a separation preventing portion that fixes the water storage portion when the water supply tank is in the second position and releases the fixation of the water storage portion when the water supply tank is in the first position.
The ultrasonic cleaning device according to any one of claims 1 to 5, further comprising:

a detection part for detecting whether the water supply tank is located at the second position; and

a control unit for controlling the ultrasonic generator,

the control unit operates the ultrasonic generator when the water supply tank is at the second position, and does not operate the ultrasonic generator when the water supply tank is not at the second position.