A cleaning machine

Abstract

The present invention relates to a cleaning machine, comprising a sink body with a washing chamber, the sink body is made of plastic, and also comprises metal parts, the metal parts are arranged on the inner wall surface of the upper part of the sink body along the circumferential direction, and reinforcing ribs are arranged on the outer peripheral wall of the sink body. The present invention makes the sink body of the present invention adopt plastic, which has strong plasticity, is convenient for deepening the depth of the sink body according to needs, and also greatly reduces the production cost; the metal parts and reinforcing ribs can prevent the sink body from being deformed by heat or cold, and at the same time, the metal parts can also resonate with the ultrasonic sound-generating device at the bottom of the sink cleaning machine to improve the ultrasonic cleaning effect; the present invention has reinforcing ribs on the outer wall surface of the sink body, which can prevent the sink body from being deformed by heat or cold on the one hand, and at the same time, when the sink body starts the ultrasonic sound-generating device, the reinforcing ribs at the bottom of the sink body are also conducive to the propagation of ultrasonic waves, improving the ultrasonic cleaning effect.

Description

Technical Field

[0001] The invention relates to a kitchen appliance, in particular to a washing machine for washing dishes, vegetables or fruits. Background Art

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. Dishwashers on the market are generally divided into three types: tabletop, cabinet, and tank. Among them, tabletop dishwashers are integrated independent structures and are generally placed on the table for use; cabinet dishwashers are also independent structures, but need to be embedded in kitchen cabinets for use; tank dishwashers are combined with sinks and are generally installed in kitchen cabinets for use.

[0003] At present, the structure of the relatively mature water tank type cleaning machine on the market is mainly as described in the Chinese patent "Water Tank Type Cleaning Machine" (application number: CN201310750968.1) with the authorization announcement number CN104224074B, that is, it includes a box body forming a washing space, the box body includes a water tank body and a cover plate rotatably connected to the water tank body, the bottom of the water tank body has a concave drain area at least in the central part, and the drain area is provided with a water pump that pumps the water in the drain area out to the washing space above the drain area, the drain area is covered with a drain plate with drain holes, and a rotating spray arm connected to the water pump fluid and having a water outlet hole is arranged above the drain plate. By setting a drain area covered with a drain plate and setting the water pump in the drain area, the water pump is isolated from the washing area, so that the water flowing back into the water pump is first filtered by the drain plate.

[0004] The sink body of the above-mentioned existing sink-type cleaning machine is made of stainless steel material, and the processing methods are mainly welding and drawing. Among them, for the welding process, due to the large welding deformation of stainless steel materials, it is difficult to control the dimensional accuracy of the sink, which limits the overall shape of the sink body, resulting in a single structure of the sink body, which in turn restricts the development of more functional structures of the sink-type cleaning machine. In addition, the welding process has extremely high requirements for the welding mold, low welding efficiency and high cost; for the drawing process, the deformation limit of the stainless steel material directly limits the drawing depth of the sink. The sink drawn by the drawing process generally has a depth less than the opening width of the sink. At present, it is difficult for the processes around the world to achieve a drawing depth greater than the opening width of the sink body, which causes the sink to occupy a larger installation space in the kitchen during installation and greatly limits the washing space of the sink. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a cleaning machine which adopts a tank body combining plastic and metal so as to deepen the tank body and reduce the production cost in view of the current status of the prior art.

[0006] Another technical problem to be solved by the present invention is to provide a cleaning machine capable of preventing deformation of a plastic tank body and improving the condensation effect after cleaning, in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a cleaning machine, including a sink body with a washing chamber, characterized in that: the sink body is made of plastic and also includes metal parts, the metal parts are circumferentially arranged on the inner wall surface of the upper part of the sink body, and reinforcing ribs are arranged on the outer peripheral wall of the sink body.

[0008] Preferably, a guide strip extending up and down is convexly provided on the inner wall surface of the metal part. This structure can guide the condensed water downward, which is conducive to accelerating the condensation of water.

[0009] In order to facilitate installation, a circumferentially arranged receiving groove is provided on the inner wall surface of the upper part of the water tank body, and the metal piece is arranged in the receiving groove. This structure facilitates the positioning and installation of the metal piece.

[0010] Preferably, the metal piece is formed as an annular plate extending up and down in the receiving groove, the upper edge of the annular plate contacts the upper edge of the receiving groove, and the lower edge of the annular plate contacts the lower edge of the receiving groove.

[0011] Further preferably, the upper edge of the annular plate is bent into the accommodating groove to form a first U-shaped structure with an opening facing downward, and the outer side of the first U-shaped structure contacts the inner wall of the accommodating groove, and the lower edge of the annular plate is bent into the accommodating groove to form a second U-shaped structure with an opening facing upward, and the outer side of the second U-shaped structure contacts the inner wall of the accommodating groove, and the annular plate and the first and second U-shaped structures on the annular plate together form a first cavity with the inner wall of the accommodating groove. Since the hot water is mainly sprayed onto the inner wall of the middle and upper part of the water tank body after being sprayed out by the spray arm, and the hot steam rises to the top of the water tank body, the above-mentioned first cavity can improve the thermal insulation performance of the lower part of the water tank body and save energy consumption on the one hand, and on the other hand, it can also play a sound insulation effect to a certain extent.

[0012] Preferably, the outer wall of the annular plate is inwardly concave to form a concave area corresponding to the guide strip. The convex inner and concave outer structure of the guide strip greatly enhances the elasticity of the annular plate. When the ultrasonic cleaning device of the cleaning machine is activated, it forms a strong resonance with the ultrasonic wave to improve the cleaning effect.

[0013] Preferably, a reinforcement strip is provided on the peripheral wall of the water tank body in the area corresponding to the receiving groove. This structure is provided to improve the rigidity of the upper part of the water tank body to avoid deformation of the top of the water tank body caused by high temperature.

[0014] Preferably, the inner wall of the metal component is flush with the inner wall surface of the water tank body.

[0015] In the above schemes, an ultrasonic generator is arranged at the bottom of the water tank body. This structure can effectively improve the cleaning effect, and the metal parts arranged on the upper part of the plastic tank body can resonate with the ultrasonic generator, further improving the ultrasonic cleaning effect.

[0016] Preferably, the reinforcing ribs are formed into a grid shape and extend from the upper part to the lower part of the water tank body. More preferably, the reinforcing ribs cover the entire outer wall surface of the water tank body, that is, the reinforcing ribs are arranged circumferentially on the outer peripheral wall surface of the water tank body and extend from the top edge of the water tank body to the bottom edge of the water tank body. The distribution density of the reinforcing ribs in the upper part of the water tank body is less than that in the lower part of the water tank body. During the washing process of the cleaning machine, hot water and cold water are often required to be washed alternately, and the deformation degree caused by cold water and hot water to the plastic tank body is different. When hot water is used for washing, the hot steam rises to the upper part of the tank body, and when cold water is used for washing, the cold water is generally located at the bottom of the tank body. Therefore, the upper part of the plastic tank body is easily thermally deformed by high-temperature steam, and the lower part of the tank body is easily deformed due to cold shrinkage, and the cold shrinkage deformation of the lower part of the tank body is greater than the thermal deformation of the upper part of the tank body. The above structure can support the tank body and prevent the tank body from being deformed due to cold or heat. At the same time, when an ultrasonic sounding device is provided at the bottom of the tank body, since the ultrasonic wave needs to be transmitted through water as a medium, the dense grid-like reinforcing ribs at the bottom of the tank body are conducive to the propagation of the ultrasonic wave, thereby improving the cleaning effect.

[0017] As an improvement, a metal strip is embedded in the reinforcing ribs at the bottom of the water tank body, and the metal strip is exposed on the inner wall surface of the water tank body. Since the cold shrinkage deformation of the bottom of the water tank body has a greater impact on the water tank than the thermal deformation of the top of the water tank body, the above structure is adopted to embed the metal strip in the reinforcing ribs at the bottom of the water tank body, which can improve the support force of the bottom of the water tank body and prevent the bottom of the water tank body from internal deformation due to cold shrinkage; at the same time, the water tank cleaning machine is often equipped with an ultrasonic sounding device, and the above metal strip can resonate with the ultrasonic sounding device to further enhance the ultrasonic cleaning effect.

[0018] As a further improvement, a sound-absorbing structure is provided at least in the middle of the inner wall of the water tank body. During the cleaning process of the cleaning machine, a large amount of water sprayed from the spray arm will be sprayed onto the inner wall of the middle part of the water tank body, causing a large noise and vibration. The above-mentioned sound-absorbing structure can effectively reduce the noise generated by the water flow impacting the inner wall of the water tank body and reduce the vibration.

[0019] Preferably, the noise-reducing structure is a tapered opening opened at the intersection of the corresponding reinforcing rib grids, and the diameter of the tapered opening gradually decreases from the inner wall surface of the water tank body outward.

[0020] Preferably, a cross-shaped reinforcement piece corresponding to the intersection of the reinforcement rib grid is further arranged in the conical opening, the inner end of the cross-shaped reinforcement piece is hidden in the conical opening, and the outer end of the cross-shaped reinforcement piece is formed as a whole with the intersection of the corresponding reinforcement rib grid. With such a structure, the connection strength between the sound-absorbing structure and the reinforcement rib can be further strengthened, and the rigidity of the middle part of the water tank body can be further reduced on the basis of sound-absorbing.

[0021] Preferably, the open portion of the water tank body is made of metal at least at the position in contact with the installation plane, and the water tank body portion below is made of plastic. Since the top edge of the water tank body is generally used as the load-bearing position during installation of the current water tank body, the above structure is used to improve the stability of the installation of the water tank body.

[0022] In order to facilitate installation and improve stability after installation, a metal assembly frame for installation and load-bearing is provided on the open periphery of the water tank body.

[0023] Preferably, the open edge extends outward to form a shelf that can be placed on the installation plane, and the metal assembly frame is arranged around the open periphery of the sink body, and its cross section has at least a Z-shaped portion, wherein the lower side of the Z-shape is arranged under the shelf, the vertical side of the Z-shape is arranged outside the periphery of the shelf, and the upper side of the Z-shape gradually extends outward away from the shelf. The upper side of the Z-shaped portion of the metal assembly frame has an outer vertical side that is bent downward at the extended end, and the lowermost end of the outer vertical side is flush with the lower side of the Z-shaped portion. This further improves the stability after installation.

[0024] Compared with the prior art, the advantages of the present invention are: the present invention uses plastic to make the water tank body, which has strong plasticity and is convenient for deepening the tank body as needed, while also greatly reducing the production cost; the present invention arranges metal parts on the inner wall surface of the upper part of the water tank body. When hot water cleaning is completed, a large amount of steam will be retained on the top of the washing chamber. The above-mentioned metal parts can accelerate the condensation of steam. At the same time, the metal parts improve the strength of the upper part of the plastic tank body to prevent the upper part of the water tank body from being deformed by heat. In addition, it can also resonate with the ultrasonic sound-generating device in the water tank cleaning machine to improve the ultrasonic cleaning effect; the present invention has reinforcing ribs on the outer wall surface of the water tank body. On the one hand, the reinforcing ribs can prevent the water tank body from being deformed by heat or cold. At the same time, when the ultrasonic sound-generating device of the water tank body is started, the reinforcing ribs at the lower part of the water tank body are also conducive to the propagation of ultrasonic waves to improve the ultrasonic cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0027] Figure 3 for Figure 1 A partial cross-sectional view of

[0028] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0029] Figure 5 A cross-sectional view of the lower part of the water tank body in an embodiment of the present invention;

[0030] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part B. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 6 As shown, the washing machine of this embodiment is a water tank type washing machine, comprising a water tank body 1 having a washing cavity 10, the water tank body 1 needs to be installed on a cabinet countertop 100 for use, and the cabinet countertop 100 is provided with an installation opening 101 for installing the water tank body 1. The top of the water tank body 1 has an opening 11 connected to the washing cavity 10.

[0033] The bottom of the water tank body 1 of this embodiment is provided with a water pump 6 which can lift water from the bottom of the water tank body 1 and spray it upward through the spray arm 5. The bottom of the water tank body 1 is provided with an ultrasonic generator 4, which can effectively improve the cleaning effect.

[0034] In this embodiment, the open portion 11 of the sink body 1 is made of metal at least at the position in contact with the cabinet countertop 100, and the sink body 1 portion below is made of plastic. Considering that the plastic sink body 1 has a low load-bearing capacity, a metal assembly frame 2 for installation and load-bearing is provided at the periphery of the open portion 11 of the sink body 1. The edge of the open portion 11 extends outward to form a shelf 12 that can be placed on the cabinet countertop 100. The metal assembly frame 2 is arranged around the periphery of the open portion 11 of the sink body 1, and its cross section has at least a Z-shaped part, wherein the lower side 21 of the Z-shape is arranged under the shelf 12, the vertical side 20 of the Z-shape is arranged outside the periphery of the shelf 12, and the upper side 22 of the Z-shape gradually extends outward away from the shelf 12. The upper side 22 of the Z-shaped part of the metal assembly frame 2 has an outer vertical side 23 bent downward at the extended end, and the lower end of the outer vertical side 23 is flush with the lower side 21 of the Z-shaped part. This structure can effectively improve the safety and stability of installation.

[0035] In this embodiment, a metal piece 3 arranged along the circumference of the water tank body 1 is provided on the inner wall surface of the upper part of the water tank body 1. In order to facilitate installation, a circumferentially arranged receiving groove 13 is provided on the inner wall surface of the upper part of the water tank body 1, and the metal piece 3 is arranged in the receiving groove 13. After assembly, the inner wall of the metal piece 3 is flush with the inner wall surface of the water tank body 1, and this structure facilitates the positioning and installation of the metal piece 3. A reinforcing strip 8 is provided on the outer peripheral wall of the water tank body 1 in the area corresponding to the receiving groove 13, and the reinforcing strip 8 has a first reinforcing strip 81 arranged at intervals and extending up and down, and a second reinforcing strip 82 connected to the lower end of each first reinforcing strip 81 along the circumferential direction. The provision of this structure can improve the rigidity of the upper part of the water tank body 1, and work together with the metal piece 3 to prevent the top of the water tank body 1 from being deformed due to high temperature.

[0036] Specifically, the metal member 3 is formed into an annular plate extending up and down in the receiving groove 13, the upper edge of the annular plate contacts the upper edge of the receiving groove 13, and the lower edge of the annular plate contacts the lower edge of the receiving groove 13. The upper edge of the annular plate is bent into the receiving groove 13 to form a first U-shaped structure 31 with an opening facing downward, the outer side of the first U-shaped structure 31 contacts the inner wall of the receiving groove 13, and the lower edge of the annular plate is bent into the receiving groove 13 to form a second U-shaped structure 32 with an opening facing upward, the outer side of the second U-shaped structure 32 contacts the inner wall of the receiving groove 13, and the annular plate and the first U-shaped structure 31 and the second U-shaped structure 32 on the annular plate together form a first cavity 30 with the inner wall of the receiving groove 13. A plurality of guide strips 33 extending up and down are convexly provided on the inner wall surface of the metal member 3. A concave area 34 is formed on the outer wall surface of the metal member 3 corresponding to the guide strips 33. The convex and concave structure of the guide strip 33 greatly enhances the elasticity of the annular plate. When the ultrasonic cleaning device 4 is activated in the cleaning machine, it forms a strong resonance with the ultrasonic wave, thereby improving the cleaning effect. Since the hot water is mainly sprayed onto the inner wall of the upper middle part of the water tank body 1 after being sprayed through the spray arm 5, and the hot steam rises to the top of the water tank body 1, the first cavity 30 can improve the thermal insulation performance of the lower part of the water tank body 1 and save energy consumption, and can also play a sound insulation effect to a certain extent.

[0037] In this embodiment, reinforcing ribs 3' are provided on the outer peripheral wall of the water tank body 1. The reinforcing ribs 3' are formed into a grid shape and extend from the upper part to the lower part of the water tank body 1. The reinforcing ribs 3' of this embodiment cover the entire outer wall surface of the water tank body 1, that is, the reinforcing ribs 3' are arranged circumferentially on the outer peripheral wall surface of the water tank body 1 and extend from the top edge of the water tank body 1 to the bottom edge of the water tank body 1. The distribution density of the reinforcing ribs 3' in the upper part of the water tank body 1 is less than that of the reinforcing ribs 3' in the lower part of the water tank body 1. During the washing process of the washing machine, hot water and cold water are often required to be washed alternately, and the deformation degree caused by cold water and hot water to the plastic tank body is different. When hot water is used for washing, the hot steam rises to the upper part of the tank body 1, while when cold water is used for washing, the cold water is generally located at the bottom of the tank body 1. Therefore, the upper part of the plastic tank body 1 is easily deformed by high-temperature steam, and the lower part of the tank body 1 is easily deformed by cold shrinkage, and the cold shrinkage deformation of the lower part of the tank body 1 is greater than the thermal deformation of the upper part of the tank body 1. The above structure can support the tank body 1 and prevent the tank body 1 from being deformed due to cold or heat. At the same time, when the ultrasonic sounding device 4 is activated at the bottom of the tank body 1, since the ultrasonic wave needs to be transmitted through water as a medium, the dense grid-like reinforcing ribs 3' at the bottom of the tank body 1 are conducive to the propagation of the ultrasonic wave, thereby improving the cleaning effect. In this embodiment, the reinforcing ribs 3' at the lower part of the tank body 1 are embedded with metal strips 31', and the metal strips 31' are exposed on the inner wall surface of the tank body 1. Since the cold shrinkage deformation of the lower part of the water tank body 1 has a greater impact on the water tank than the thermal deformation of the upper part of the water tank body 1, the above structure is adopted to embed the metal strip 31' in the reinforcing rib 3' at the lower part of the water tank body 1, which can improve the supporting force of the lower part of the water tank body 1 and prevent the lower part of the water tank body 1 from internal deformation due to cold shrinkage; at the same time, when the ultrasonic sounding device 4 is activated in the water tank cleaning machine, the above metal strip 31' can resonate with the ultrasonic sounding device 4 to further enhance the ultrasonic cleaning effect.

[0038] In the present embodiment, a sound-absorbing structure 7 is arranged in the middle of the inner wall of the water tank body 1. The sound-absorbing structure 7 is a conical opening opened at the intersection of the corresponding reinforcing rib 3' grid, and the diameter of the conical opening gradually decreases from the inner wall surface of the water tank body 1 to the outside. During the cleaning process of the cleaning machine, a large amount of water sprayed by the spray arm 5 will be sprayed onto the inner wall of the middle part of the water tank body 1, causing a large noise and vibration. The above-mentioned sound-absorbing structure can effectively reduce the noise generated by the water flow impacting the inner wall of the water tank body 1 and reduce the vibration. A cross-shaped reinforcement member 71 arranged at the intersection of the corresponding reinforcing rib 3' grid is also arranged in the conical opening. The inner end of the cross-shaped reinforcement member 71 is hidden in the conical opening and is roughly located in the middle of the conical opening. The outer end of the cross-shaped reinforcement member 71 is formed as a whole with the intersection of the corresponding reinforcing rib 3' grid. With such a structure, the connection strength between the sound-absorbing structure 7 and the reinforcing rib 3' and the rigidity of the middle part of the water tank body 1 can be further strengthened, and the vibration can be further reduced on the basis of sound absorption.

[0039] In this embodiment, the sink body 1 is made of plastic, which has strong plasticity and is convenient for deepening the depth of the sink body as needed, which improves the conditions for further developing new functions and structures of the sink type cleaning machine. Of course, the plastic sink body also greatly reduces the production cost compared with the stainless steel sink body. In this embodiment, the sink body 1 is installed on the cabinet countertop by using a metal assembly frame 2, which solves the problem of the small bearing capacity of the shelf 12 of the plastic sink body 1 and improves the stability of the installation of the sink body 1. In addition, in this embodiment, a metal part 3 is arranged on the inner wall surface of the upper part of the sink body 1, and the metal part 3 can prevent the sink body from 1 is deformed by heat, and at the same time, it can resonate with the ultrasonic sound-generating device 4 in the sink cleaning machine to improve the ultrasonic cleaning effect; in this embodiment, a reinforcing rib 3' is provided on the outer wall surface of the sink body 1. On the one hand, the reinforcing rib 3' can prevent the sink body 1 from being deformed by heat or cold. At the same time, when the ultrasonic sound-generating device 4 is started on the sink body 1, the reinforcing rib 3' at the lower part of the sink body 1 is also conducive to the propagation of ultrasonic waves. The metal strip 31' embedded in the reinforcing rib 3' and exposed on the inner wall surface of the sink body 1 can resonate with the ultrasonic sound-generating device 4, further enhancing the ultrasonic cleaning effect.

Claims

1. A cleaning machine, comprising a water tank body (1) having a washing chamber (10), characterized in that: The water tank body (1) is made of plastic material and further comprises a metal part (3). The metal part (3) is arranged on the inner wall surface of the upper part of the water tank body (1) along the circumferential direction. A reinforcing rib (3') is arranged on the outer circumferential wall of the water tank body (1). A guide strip (33) extending up and down is convexly provided on the inner wall surface of the metal part (3); A circumferentially arranged receiving groove (13) is provided on the inner wall surface of the upper part of the water tank body (1), and the metal member (3) is arranged in the receiving groove (13); a reinforcing strip (8) is provided on the outer peripheral wall of the water tank body (1) in the area corresponding to the receiving groove (13); The metal member (3) is formed as an annular plate extending up and down in the receiving groove (13), the upper edge of the annular plate contacts the upper edge of the receiving groove (13), and the lower edge of the annular plate contacts the lower edge of the receiving groove (13); The upper edge of the annular plate is bent into the accommodating groove (13) to form a first U-shaped structure (31) with an opening facing downward, and the outer side of the first U-shaped structure (31) is in contact with the inner wall of the accommodating groove (13). The lower edge of the annular plate is bent into the accommodating groove (13) to form a second U-shaped structure (32) with an opening facing upward, and the outer side of the second U-shaped structure (32) is in contact with the inner wall of the accommodating groove (13). The annular plate and the first U-shaped structure (31), the second U-shaped structure (32) on the annular plate together form a first cavity (30) with the inner wall of the accommodating groove (13).

2. The cleaning machine according to claim 1, characterized in that: The outer wall surface of the annular plate is inwardly recessed at a location corresponding to the guide strip (33) to form a recessed area (34).

3. The cleaning machine according to claim 1, characterized in that: The reinforcing ribs (3') are shaped like a grid and are located in the middle of the water tank body.

4. The cleaning machine according to claim 3, characterized in that: The reinforcing ribs (3') extend from the upper part to the lower part of the water tank body (1).

5. The cleaning machine according to claim 3, characterized in that: The distribution density of the reinforcing ribs (3') in the upper middle portion of the water tank body (1) is smaller than the distribution density of the reinforcing ribs (3') in the lower portion of the water tank body (1).

6. The cleaning machine according to claim 5, characterized in that: A metal strip (31') is embedded in the reinforcing rib (3') at the lower part of the water tank body (1), and the metal strip (31') is exposed on the inner wall surface of the water tank body (1).

7. The cleaning machine according to claim 3, characterized in that: A sound-absorbing structure (7) is provided at least in the middle of the inner wall surface of the water tank body (1).

8. The cleaning machine according to claim 7, characterized in that: The muffler structure (7) is a conical opening opened at the intersection of the corresponding reinforcing ribs (3') grids, and the diameter of the conical opening gradually decreases from the inner wall surface of the water tank body (1) outwards.

9. The cleaning machine according to claim 8, characterized in that: The conical opening is also provided with a cross-shaped reinforcement member (71) arranged at the intersection of the reinforcing rib (3') grid, the inner end of the cross-shaped reinforcement member (71) is hidden in the conical opening, and the outer end of the cross-shaped reinforcement member (71) is formed integrally with the intersection of the corresponding reinforcing rib (3') grid.

10. The cleaning machine according to any one of claims 1 to 9, characterized in that: The top of the water tank body (1) has an opening (11) connected to the washing chamber (10); the opening (11) of the water tank body (1) is made of metal at least at a position in contact with the installation plane, and the water tank body (1) portion below the opening is made of plastic.

11. The cleaning machine according to claim 10, characterized in that: A metal assembly frame (2) for installation and load bearing is arranged around the opening (11) of the water tank body (1).

12. The cleaning machine according to claim 11, characterized in that: The edge of the opening (11) extends outward to form a shelf (12) that can be placed on a mounting plane. The metal assembly frame (2) is arranged around the periphery of the opening (11) of the sink body (1), and its cross section has at least a partial Z-shape, wherein the lower side (21) of the Z-shape is arranged below the shelf (12), the vertical side (20) of the Z-shape is arranged outside the periphery of the shelf (12), and the upper side (22) of the Z-shape gradually extends outward away from the shelf (12).

13. The cleaning machine according to claim 12, characterized in that: The upper edge (22) of the Z-shaped portion of the metal assembly frame (2) has a downwardly bent outer vertical edge (23) at the extended end, and the lowermost end of the outer vertical edge (23) is flush with the lower edge (21) of the Z-shaped portion.

14. The cleaning machine according to any one of claims 1 to 9, characterized in that: An ultrasonic generating device (4) is provided at the bottom of the water tank body (1).

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