Ultrasonic washing device and washing equipment for laundry facilities

Abstract

The present invention relates to an ultrasonic washing device for laundry equipment, which includes a washing tank (1) for storing washing water, a drain port (13) that communicates with the inside and outside of the washing tank (1) at the bottom of the washing tank (1), and an opening / closing member (2) that is slidably installed in the washing tank (1) and is used to open and close the drain port (13). A drain outlet (13) is opened at the bottom of the washing tub (1), and the bottom of the washing tub (1) can be pulled out together with the washing tub (1) into the tub body of the washing equipment. After the opening and closing member (2) slides to open the drain outlet (13), the washing water in the washing tub (1) is discharged into the tub body through the drain outlet (13) at the bottom of the washing tub (1). This washing water can be further used in the washing process in the tub body, making full use of the washing water discharged from the washing tub (1). When the bottom of the washing tub (1) is not pulled out into the tub body of the washing equipment, the drain outlet (13) is connected to the drain pipe of the washing equipment, and the washing water can be discharged outside the washing equipment.

Description

[Technical Field]

[0001] The present invention relates to the technical field of laundry equipment, and more particularly to an ultrasonic washing device for laundry equipment and a laundry equipment. [Background technology]

[0002] "Laundry equipment" refers to a general term for household electrical appliances with a washing function, such as washing machines, combined washer-dryers, etc. "Ultrasonic washing device for laundry equipment" refers to a device installed in the laundry equipment that performs ultrasonic pre-washing on items to be washed (i.e., ultrasonically washing the heavily soiled parts of large clothes before the main wash).

[0003] The ultrasonic washing device of the laundry equipment contains washing water containing laundry detergent and ultrasonically washes the laundry items using the washing water. The ultrasonic washing device is equipped with a drain outlet for discharging the washing water, which is connected to the drain pipe of the laundry equipment. After the ultrasonic washing is completed, the washing water is discharged directly into the drain pipe through the drain outlet and then discharged outside the laundry equipment.

[0004] In the above configurations, after the wash water in the ultrasonic washing device has been used, it can only be discharged outside the washing equipment and cannot be recycled. In particular, if the wash water contains a high concentration of laundry detergent, directly discharging it will result in a waste of the laundry detergent. It is with this in mind that the present invention is particularly presented. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION The object of the present invention is to provide an ultrasonic washing device for a laundry facility, which makes full use of the washing water in the ultrasonic washing device and avoids wasting laundry detergent. Another object of the present invention is to provide a laundry facility for increasing the utilization rate of laundry detergent in the laundry facility. [Means for solving the problem]

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is as follows.

[0007] An ultrasonic washing device for laundry equipment includes a washing tank for storing washing water, a drain port that communicates with the inside and outside of the washing tank at the bottom, and an opening / closing member that is slidably installed in the washing tank and is used to open and close the drain port.

[0008] The washing tank further includes a bottom wall, a front side wall, and a rear side wall, which are located at corresponding positions. The drain hole is disposed in the bottom wall and spaced apart from the front side wall and the rear side wall.

[0009] Furthermore, a portion of the bottom wall of the cleaning tank protrudes toward the inside of the cleaning tank to form a convex base structure, and the convex base structure has a convex side wall that is perpendicular to the plane on which the bottom wall of the cleaning tank is located, faces the rear end side wall of the cleaning tank, and is installed close to the rear end side wall of the cleaning tank, and the drain port is opened in the convex side wall.

[0010] Furthermore, the opening and closing member is a slide frame slidably installed on the outer side of the bottom wall of the cleaning tank and slidable from the rear end of the cleaning tank to the front end of the cleaning tank; and a closing member that is installed on the slide frame, facing the drain outlet, and engaged between the front end side wall of the washing tank and the drain outlet, and is used to open and close the drain outlet.

[0011] Furthermore, a convex structure is provided on the outer wall surface of the bottom wall of the washing tank, and is located between the drain outlet and the rear end side wall of the washing tank, and the slide frame and the convex structure are elastically connected by an elastic member.

[0012] Furthermore, the outer wall surface of the bottom wall of the cleaning tank, between the drain outlet and the rear end side wall of the cleaning tank, is provided with a recess toward the inside of the cleaning tank and a groove extending from the drain outlet side to the rear end side wall of the cleaning tank, the convex structure is fitted into the groove, and the elastic member is installed in the groove, with one end abutting the convex structure and the other end used to connect to the slide frame.

[0013] Preferably, the elastic member is a spring.

[0014] Furthermore, the convex structure has a first side wall and a second side wall arranged opposite each other, the first side wall has an opening, the opening of the first side wall overlaps with the drain outlet, and the second side wall is located between the first side wall and the rear end side wall of the cleaning tank.

[0015] The present invention further discloses a laundry equipment including a tub body for storing washing water, and further includes an ultrasonic washing device according to any of the above technical solutions, wherein the washing tub of the ultrasonic washing device is retractably installed in the tub body and can be retracted into the tub body to a point where the drain outlet is located inside the tub body.

[0016] Furthermore, an attachment chamber is opened on the inner wall of the tub body and has an opening portion installed toward the inside of the tub body, and the cleaning tub and opening / closing member are installed in the attachment chamber through the opening portion, and after the cleaning tub is pulled out of the attachment chamber, the opening / closing member slides out of the attachment chamber, providing an open state in which it can open the drain outlet.

[0017] In addition, laundry facilities are a drain pan that is installed in the mounting chamber and fitted to the outside of the cleaning tank, and when the cleaning tank slides back into the mounting chamber, an opening / closing member opens the drain port and the drain pan is connected to the drain port; The washing machine further includes a drain pipe that is used to drain the wash water from the washing machine and is connected to the drain pan. [Effects of the Invention]

[0018] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0019] In the present invention, a drain outlet is opened at the bottom of the washing tub, and the bottom of the washing tub can be pulled out together with the washing tub into the tub body of the washing equipment. After the opening and closing member slides to open the drain outlet, the washing water in the washing tub is discharged into the tub body through the drain outlet at the bottom of the washing tub, and this washing water can be further used in the washing process in the tub body, thereby making full use of the washing water discharged from the washing tub and avoiding waste of laundry detergent in the washing water.

[0020] In the present invention, when the bottom of the washing tub is not pulled out into the tub body of the washing equipment, its drain outlet communicates with the drain pipe of the washing equipment, allowing the washing water to be discharged outside the washing equipment.

[0021] In the present invention, when the washing tub is pulled into the tub body to the point where the drain outlet is located inside the tub body, the user can open the drain outlet by sliding the opening and closing member, allowing the wash water in the washing tub to be discharged into the tub body and used for the washing process inside the tub body, thereby making full use of the wash water discharged from the washing tub, improving the washing effect of the laundry equipment, and avoiding waste of water resources and laundry detergent resources.

[0022] Specific embodiments of the present invention will now be described in more detail with reference to the drawings. [Brief explanation of the drawings]

[0023] The diagrams are used as part of the present invention to provide a further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to interpret the present invention, but do not unduly limit the present invention. Needless to say, the diagrams described below are only examples, and those skilled in the art can derive other diagrams based on these diagrams without performing creative activities.

[0024] [Figure 1] FIG. 1 is a schematic diagram of the bottom assembly structure of an ultrasonic washing machine according to the present invention. [Figure 2] FIG. 2 is a front view of the bottom assembly structure of the ultrasonic washing machine according to the present invention. [Figure 3]FIG. 3 is a schematic diagram of the internal assembly structure of the ultrasonic washing device according to the present invention. [Figure 4] FIG. 4 is a schematic diagram of the assembled structure of the ultrasonic washing device of the present invention when the opening and closing member is not attached. [Figure 5] FIG. 5 is a schematic view of the assembly structure of the ultrasonic washing device according to the present invention when the drain outlet is open. [Figure 6] FIG. 6 is a schematic structural view of the opening and closing member according to the present invention. [Figure 7] FIG. 7 is a front view of the structure of the opening and closing member according to the present invention. [Figure 8] FIG. 8 is a schematic diagram of an assembly structure in which a drain pan is attached to the ultrasonic washing device of the present invention. [Figure 9] FIG. 9 is a schematic diagram of the structure of a drain pan according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will refer to the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. The following embodiments are used to explain the present invention but are not used to limit the scope of the present invention.

[0026] In describing the present invention, the orientations or positional relationships indicated by terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings and are intended merely to facilitate and simplify the description of the present invention, and are not intended to indicate or imply that a specified device or component is in a particular orientation or is configured or operated in a particular orientation, and should not be construed as limiting the present invention.

[0027] In describing the present invention, terms such as "attached," "coupled," and "connected" should be understood in a broad sense unless otherwise clearly specified or limited. For example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, or electrically connected. They may be directly connected or indirectly connected via an intermediate member. Those skilled in the art will be able to understand the specific meanings of the above terms in this application according to the specific circumstances.

[0028] "Laundry equipment" refers to a general term for household electrical appliances with a washing function, such as washing machines, combined washer-dryers, etc. "Ultrasonic washing device for laundry equipment" refers to a device that is installed in the laundry equipment and uses ultrasound to pre-wash items to be washed (i.e., it first performs ultrasonic washing on the heavily soiled parts of large clothes before the main wash).

[0029] As shown in Figures 1 to 9, the present invention discloses an ultrasonic washing device for laundry equipment. The ultrasonic washing device includes a washing tub 1 for containing washing water, and the washing tub 1 includes a bottom wall 14 and a peripheral side wall, and the washing tub 1 is surrounded by the bottom wall 14 and the peripheral side wall.

[0030] The cleaning tank 1 is provided with a drain port 13 that communicates with the inside and outside of the cleaning tank 1 and is used to drain the washing water in the cleaning tank 1. The drain port 13 can be provided at the bottom or peripheral side wall of the cleaning tank 1, and the drain port 13 in the present invention is provided at the bottom of the cleaning tank 1.

[0031] The ultrasonic washing machine further includes an opening / closing member 2 slidably installed in the washing tub 1 and used to open and close the drain outlet 13. Specifically, the opening / closing member 2 can be installed inside or outside the washing tub 1, and preferably, the opening / closing member 2 is installed outside the washing tub 1.

[0032] In the present invention, drain outlet 13 is opened at the bottom of washing tub 1, and the bottom of washing tub 1 can be pulled out together with washing tub 1 into the tub body of the washing equipment. After opening and closing member 2 slides to open drain outlet 13 in this way, the washing water in washing tub 1 is discharged into the tub body through drain outlet 13, and this washing water can be further used in the washing process in the tub body, thereby making full use of the washing water discharged from washing tub 1 and avoiding waste of laundry detergent in the washing water.

[0033] In the present invention, when the opening / closing member 2 does not open the drain outlet 13, the washing water in the washing tub 1 can be used for ultrasonic washing of clothes. In addition, when the bottom of the washing tub 1 is not pulled out into the tub body of the washing machine, the drain outlet 13 communicates with the drain pipe of the washing machine, allowing the washing water to be discharged outside the washing machine.

[0034] 3, the cleaning tank 1 includes a bottom wall 14, a front side wall 11, and a rear side wall 12. The drain hole 13 is spaced apart from the front side wall 11 and the rear side wall 12 and is provided in the bottom wall 14.

[0035] Specifically, the drain hole 13 is located in the middle area between the front side wall 11 and the rear side wall 12. A handle is provided on the outer wall surface of the front side wall 11, so that a user can pull out the washing tub 1 by holding the handle, and the bottom wall 14 is provided with a position for the drain hole 13 to be pulled out at least into the tub body of the washing machine.

[0036] In this embodiment, the drain outlet 13 has a gap between the front side wall 11 and the rear side wall 12. In this way, the rear side wall 12 is engaged with the tub body to connect the washing tub 1 to the tub body and prevent the washing tub 1 from falling off from the tub body. The bottom wall 14 has an area for the drain outlet 13, which can be pulled out together with the front side wall 11 into the tub body of the washing equipment, thereby realizing the purpose of releasing the washing water in the washing tub 1 into the tub body for secondary reuse.

[0037] In another embodiment of the present invention, as shown in Figures 3 to 8, a portion of the bottom wall 14 of the cleaning tank 1 protrudes toward the inside of the cleaning tank 1 to form a convex base structure 15. The convex base structure 15 has a convex base side wall 151 that is perpendicular to the plane on which the bottom wall 14 of the cleaning tank 1 is located, faces the rear end side wall 12 of the cleaning tank 1, and is installed close to the rear end side wall 12 of the cleaning tank 1, and the drain hole 13 is opened in the convex base side wall 151.

[0038] Furthermore, as shown in Figure 5, the convex base structure 15 presents a groove structure on the outside of the bottom wall 14 of the cleaning tank 1, and the drain outlet 13 is opened in the side wall of the groove structure, and the drain outlet 13 is installed perpendicular to the plane on which the bottom wall 14 is located.

[0039] In this embodiment, the drain outlet 13 is opened in the protruding base side wall 151. When the drain outlet 13 is in the open state, the opening / closing member 2 is slid from the front end of the washing tank 1 to the rear end of the washing tank 1 to seal the drain outlet 13 and prevent the washing water in the washing tank 1 from leaking out. Alternatively, when the drain outlet 13 is in the open state, the opening / closing member 2 can be removed and the washing tank 1 can be pulled out to the front end to seal the drain outlet 13.

[0040] Conversely, when drain outlet 13 is in a sealed state, opening and closing member 2 can be slid from the rear end of washing tank 1 to the front end of washing tank 1 to open drain outlet 13 and drain the washing water in washing tank 1. Alternatively, when drain outlet 13 is in a sealed state, opening and closing member 2 can be removed, and washing tank 1 can be returned to its rear end position to open drain outlet 13.

[0041] As a further embodiment of the present invention, as shown in FIGS. 1, 2, 5 to 7, the opening and closing member 2 is a slide frame 21 slidably installed on the outside of the bottom wall 14 of the cleaning tank 1, i.e., on the outer wall surface 141 of the bottom wall, and slidable from the rear end of the cleaning tank 1 to the front end of the cleaning tank 1; and a blocking member 22 that is installed on the slide frame 21, engages between the front end side wall 11 of the cleaning tank 1 and the drain outlet 13 opposite the drain outlet 13, and is used to open and close the drain outlet 13.

[0042] The blocking member 22 may have a rubber packing structure, and its size and shape match those of the drain outlet 13, thereby sealing the drain outlet.

[0043] In this embodiment, the drain outlet 13 is opened in the protruding side wall 151, and when the drain outlet 13 is in the open state, there is a gap between the blocking member 22 and the drain outlet 13. At this time, the slide frame 21 can be slid from the front end of the washing tank 1 to the rear end of the washing tank 1, so that the blocking member 22 slides toward the drain outlet 13, thereby sealing the drain outlet 13. Alternatively, when the drain outlet 13 is in the open state, the slide frame 21 is not moved, and the washing tank 1 is pulled out to the front end, so that the drain outlet 13 slides toward the blocking member 22, and is sealed by the blocking member 22.

[0044] Conversely, when the drain outlet 13 is in a sealed state, the blocking member 22 blocks the drain outlet 13, and at this time, by sliding the slide frame 21 from the rear end of the cleaning tank 1 to the front end of the cleaning tank 1, the blocking member 22 slides to the front end of the cleaning tank 1 and is detached from the drain outlet 13, thereby opening the drain outlet 13. Alternatively, when the drain outlet 13 is in a sealed state, the slide frame 21 does not move, and the cleaning tank 1 is returned to its rear end, thereby moving the drain outlet 13 away from the blocking member 22, causing it to be detached from the blocking member 22 and opening the drain outlet 13.

[0045] 2 and 4, in one embodiment of the present invention, a convex structure 3 is provided on the outer wall surface of the bottom wall 14 of the cleaning tank 1, i.e., the outer wall surface 141 of the bottom wall, and is located between the drain outlet 13 and the rear side wall 12 of the cleaning tank 1, and the slide frame 21 and the convex structure 3 are elastically connected by an elastic member. The elastic member may be a spring 4.

[0046] Specifically, a recess is provided on the outer wall surface of the bottom wall 14 of the cleaning tank 1, i.e., the bottom wall outer wall surface 141, between the drain outlet 13 and the rear side wall 12 of the cleaning tank 1, toward the inside of the cleaning tank 1, and a groove 142 extending from the drain outlet 13 side to the rear side wall 12 of the cleaning tank 1, and the convex structure 3 is fitted into the groove 142, and the elastic member is installed in the groove 142, with one end abutting the convex structure 3 and the other end being used to connect to the slide frame 21.

[0047] More specifically, a connecting member 23 is installed on the slide frame 21, and the connecting member 23 has a columnar structure. The connecting member 23 is installed opposite the closing member 22, and the central axes of the connecting member 23 and the closing member 22 are aligned. One end of the spring 4 abuts against the convex structure 3, and the other end of the spring 4 is fitted into the connecting member 23.

[0048] In this embodiment, when drain outlet 13 is sealed, slide frame 21 slides to the front end of washing tub 1, compressing spring 4 to open drain outlet 13 and drain the washing water from washing tub 1. After the drain is complete, spring 4 returns to its original position, driving slide frame 21 to slide to the rear end of washing tub 1, thereby automatically sealing drain outlet 13. Alternatively, when drain outlet 13 is sealed, slide frame 21 does not move, but pushes washing tub 1 back to the rear end, compressing spring 4 to open drain outlet 13 and drain the washing water from washing tub 1.

[0049] 4, in one embodiment of this embodiment, the convex structure 3 includes a first side wall 31 and a second side wall 32 that are installed opposite each other. The first side wall 31 has an opening 311 that overlaps with the drain outlet 13, and the second side wall 32 is located between the first side wall 31 and the rear side wall 12 of the cleaning tank 1. One end of the spring 4 abuts against the second side wall 32 of the convex structure 3, and the other end of the spring 4 is fitted into the connecting member 23 of the slide frame 21.

[0050] In this embodiment, the first side wall 31 of the convex structure 3 has an opening 311, which overlaps with the drain outlet 13, allowing the washing water in the washing tank 1 to be discharged through the drain outlet 13 and the opening 311. The second side wall 32 of the convex structure 3 is used to abut against the spring 4, allowing the slide frame 21 to slide under the force of the spring 4, further realizing the opening and closing of the drain outlet 13.

[0051] 2, in one embodiment of the present invention, a screw 143 is installed on the outer bottom surface 141 of the cleaning tank 1. The screw 143 is installed on the outer bottom surface 141 perpendicular to the outer bottom surface 141, with a gap between the screw 143 and the outer bottom surface 141. A slide groove 25 is formed in the slide frame 21, and the slide groove 25 extends from the front end to the rear end of the slide frame 21. The slide groove 25 is slidably fitted onto the screw 143.

[0052] In this embodiment, the slide groove 25 is slidably connected to the screw 143, which serves to limit and direct the sliding of the slide frame 21, not only ensuring the stability of the sliding direction of the slide frame 21, but also preventing the slide frame 21 from sliding off the cleaning tank 1 and ensuring the stability of the slidable attachment between the cleaning tank 1 and the slide frame 21.

[0053] The present invention further provides a laundry equipment including a tub body for storing washing water, and further including an ultrasonic washing device according to any of the above technical solutions, wherein the washing tub 1 of the ultrasonic washing device is retractably installed in the tub body, and can be retracted into the tub body to a point where the drain outlet 13 is located inside the tub body.

[0054] In the present invention, when the washing tub 1 is pulled into the tub body to the point where the drain outlet 13 is located inside the tub body, the opening and closing member 2 is slid to open the drain outlet 13, allowing the washing water in the washing tub 1 to be discharged into the tub body and used for the washing process inside the tub body, thereby making full use of the washing water discharged from the washing tub 1, improving the washing effect of the washing equipment, and avoiding waste of water resources and laundry detergent resources.

[0055] In one embodiment of the present invention, an installation chamber is formed on the inner wall of the tub body, and has an opening facing the inside of the tub body. The cleaning tub 1 and the opening / closing member 2 are installed in the installation chamber through the opening, and after the cleaning tub 1 is pulled out of the installation chamber, the opening / closing member 2 slides out of the installation chamber, opening the drain hole 13.

[0056] Specifically, when the user is not using the ultrasonic washing machine, the ultrasonic washing machine remains in the mounting chamber and does not interfere with the washing process of the clothes in the tub body. When the user needs to use the ultrasonic washing machine to perform ultrasonic washing, he / she first holds the front end of the washing tub 1 without moving the slide frame 21 of the opening / closing member 2, and pulls the washing tub 1 into the tub body, with the drain port 13 sealed and inside the tub body, and then starts the ultrasonic washing.

[0057] After the ultrasonic washing is completed, if the washing water in the washing tub 1 contains a high concentration of laundry detergent, the washing water can be discharged into the tub body and reused. Specifically, the handle 24 of the slide frame 21 is moved to slide the slide frame 21 to the front end of the washing tub 1, and the blocking member 22 of the slide frame 21 is detached from the discharge port 13, opening the discharge port 13 so that the washing water in the washing tub 1 can flow directly into the tub body through the drain port 13.

[0058] After the ultrasonic washing is completed, if the washing water in the washing tank 1 contains a low concentration of laundry detergent and is dirty, the washing water is discharged outside the washing equipment, thereby preventing the washing water from contaminating the washing water in the tank body.

[0059] Specifically, as shown in Figures 8 and 9, the washing equipment includes a drain pan 5, which is installed in the mounting chamber, fitted to the outside of the washing tub 1, and located below the washing tub 1. When the washing tub 1 slides back into the mounting chamber, the openable / closable member 2 opens the drain port 13, which is connected to the drain pan 5. The washing equipment further includes a drain pipe used to drain the wash water from the washing equipment, and the drain pan 5 is connected to the drain pipe.

[0060] After the ultrasonic washing is completed, the slide frame 21 remains stationary and the washing tub 1 is pushed back into the mounting chamber, the spring 4 is compressed, and the drain port 13 moves away from the blocking member 22. At this time, the drain port 13 is located above the drain pan 5, and the washing water flowing out from the drain port 13 flows directly into the drain pan 5 and is discharged from the drain pan 5 into the drain pipe of the washing equipment. This installation method eliminates the need to install a separate drain pipe for the washing tub 1, and the same drain pipe can be shared with the tub body, simplifying the structure of the washing equipment.

[0061] 8 and 9, in one embodiment of this embodiment, the drain pan 5 is fitted to the bottom of the cleaning tank 1, with the rear end 52 of the drain pan installed adjacent to the rear end of the cleaning tank 1 and the front end 53 of the drain pan installed adjacent to the front end of the cleaning tank 1. The drain pan 5 includes a bottom wall 54 of the drain pan, which is installed sloping downward from the front end 53 of the drain pan to the rear end 52 of the drain pan.

[0062] This installation method allows the wash water flowing from drain outlet 13 into drain pan 5 to join at rear end 52 of the drain pan. Furthermore, drain pan drain outlet 51, which communicates with the inside and outside of drain pan 5, is installed at rear end 52 of the drain pan. Drain pan drain outlet 51 is connected to the drain pipe of the washing equipment. The wash water that joins at rear end 52 of the drain pan is quickly and efficiently drained from drain pan drain outlet 51 to the drain pipe, and then from the drain pipe to the outside of the washing equipment, improving the efficiency with which wash water is discharged from washing tub 1 and preventing wash water from accumulating in drain pan 5.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above through preferred embodiments, this is not intended to limit the present invention. Slight modifications or additions made by those skilled in the art using the technical content presented above, within the scope of the technical solution of the present invention, are considered equivalently modified embodiments. The implementation solutions in the above embodiments can also be further combined or replaced. Simple modifications, equivalent modifications, and additions made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are all within the scope of the solution of the present invention. [Explanation of symbols]

[0064] 1 Cleaning tank 11 Front end side wall 12 Rear end side wall 13 Drain 14 Bottom wall 141 Bottom wall outer surface 142 Groove 143 screws 15 Convex structure 151 Convex side wall 2 Opening and closing members 21 Slide Frame 22 Closure member 23 Connecting member 24 Handle 25 Slide groove 3. Convex structure 31 First side wall 311 Opening 32 Second side wall 4 springs 5 Drain pan 51 Drain pan outlet 52 Rear end of drain pan 53 Front end of drain pan 54 Bottom wall of drain pan

[0065] It should be noted that these drawings and written description are not intended to limit the scope of the present invention in any manner, but are intended to explain the concept of the present invention to those skilled in the art with reference to specific embodiments.

Claims

1. 1. An ultrasonic washing device for a laundry facility, comprising a wash tub for containing wash water, An ultrasonic washing device for laundry equipment, characterized in that a drain port communicating with the inside and outside of the washing tank is opened at the bottom of the washing tank, and further includes an opening / closing member slidably installed in the washing tank and used to open and close the drain port.

2. 2. The ultrasonic washing device of claim 1, wherein the washing tub includes a bottom wall, front and rear side walls located at corresponding positions, and the drain hole is spaced apart from the front and rear side walls and opened in the bottom wall.

3. 3. The ultrasonic washing device of claim 2, wherein a portion of the bottom wall of the washing tub protrudes toward the inside of the washing tub to form a convex structure, the convex structure having a convex side wall that is perpendicular to the plane on which the bottom wall of the washing tub is located, faces the rear side wall of the washing tub, and is installed close to the rear side wall of the washing tub, and the drain port is opened in the convex side wall.

4. The opening and closing member is a slide frame slidably installed on the outer side of the bottom wall of the cleaning tank and slidable from the rear end of the cleaning tank to the front end of the cleaning tank; 4. The ultrasonic washing device of claim 3, further comprising: a closing member that is installed on the slide frame, facing the drain outlet, and engaged between the front end side wall of the washing tub and the drain outlet, and is used to open and close the drain outlet.

5. An ultrasonic washing device for laundry equipment as described in any one of claims 2 to 4, characterized in that a convex structure is provided on the outer wall surface of the bottom wall of the washing tub, located between the drain outlet and the rear end side wall of the washing tub, and the slide frame and the convex structure are elastically connected by an elastic member.

6. The ultrasonic washing device of the laundry equipment described in claim 5, characterized in that the outer wall surface of the bottom wall of the washing tub, between the drain outlet and the rear end side wall of the washing tub, has a recess toward the inside of the washing tub and a groove extending from the drain outlet side to the rear end side wall of the washing tub, the convex structure is fitted into the groove, the elastic member is installed in the groove, one end abuts the convex structure and the other end is used to connect to the slide frame, and preferably the elastic member is a spring.

7. 7. The ultrasonic washing device of claim 6, wherein the convex structure comprises a first side wall and a second side wall arranged opposite each other, the first side wall having an opening, the opening of the first side wall overlapping with the drain outlet, and the second side wall being located between the first side wall and a rear end side wall of the washing tub.

8. A laundry facility including a tub body for containing wash water, 8. A laundry facility further comprising the ultrasonic washing device according to claim 1, wherein the cleaning tub of the ultrasonic washing device is retractably installed in the tub body and can be retracted into the tub body to a point where the drain outlet is located inside the tub body.

9. 9. The laundry equipment according to claim 8, wherein an attachment chamber is opened on the inner wall of the tub body and has an opening portion installed toward the inside of the tub body, the washing tub and the opening / closing member are installed in the attachment chamber through the opening portion, and after the washing tub is pulled out of the attachment chamber, the opening / closing member slides out of the attachment chamber to open the drain port.

10. a drain pan that is installed in the mounting chamber and fitted to the outside of the cleaning tank, and when the cleaning tank slides back into the mounting chamber, an opening / closing member opens the drain port and the drain pan is connected to the drain port; 10. The laundry facility according to claim 9, further comprising a drain pipe used to drain wash water from the laundry facility and connected to the drain pan.

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