A cleaning machine

Abstract

This invention relates to a cleaning machine, comprising a water tank body with a washing chamber. The open portion of the water tank body, at least at the location in contact with the mounting plane, is made of metal, while the lower portion of the water tank body is made of plastic. Reinforcing ribs are provided on the outer peripheral wall of the water tank body. This invention uses plastic to manufacture the water tank body, which offers high plasticity and allows for increasing the tank depth as needed, while also significantly reducing production costs. The fact that the open portion of the water tank body is made of metal at least at the location in contact with the mounting plane solves the problem of low load-bearing capacity in plastic water tank bodies, improving the stability of the water tank body during installation. The reinforcing ribs on the outer wall of the water tank body prevent deformation due to heat or cold, and when the ultrasonic wave generator is activated, the reinforcing ribs at the bottom of the water tank body also facilitate 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 which can prevent the deformation of the plastic tank body and improve the cleaning effect 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, the top of the sink body has an opening connected to the washing chamber, characterized in that: the open part of the sink body is made of metal at least in the position in contact with the installation plane, and the sink body part below it is made of plastic material, and reinforcing ribs are arranged on the outer peripheral wall of the sink body.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] In the above schemes, an ultrasonic generator is provided at the bottom of the water tank body. This structure can effectively improve the cleaning effect, and dense reinforcement ribs are provided at the bottom of the plastic tank body and metal strips embedded in the reinforcement ribs and exposed on the inner wall of the water tank body can also resonate with the ultrasonic generator to further improve the ultrasonic cleaning effect.

[0016] Compared with the prior art, the advantages of the present invention are: the present invention uses plastic to make the sink body, which has strong plasticity and is convenient for deepening the sink body as needed, while also greatly reducing the production cost; the open part of the sink body of the present invention is made of metal at least at the position in contact with the installation plane, which solves the problem of low bearing capacity of the plastic sink body and improves the stability of the installation of the sink body; in addition, 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, and at the same time, when the ultrasonic sounding device of the sink body is started, the reinforcing ribs at the lower part of the sink body are also conducive to the propagation of ultrasonic waves, thereby improving the ultrasonic cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0019] Figure 3 It is a cross-sectional view of an embodiment of the present invention (the spray arm and the water pump are hidden);

[0020] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0021] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of part B. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 5 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.

[0024] 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.

[0025] The open portion 11 of the sink body 1 of this embodiment is made of metal at least at the position in contact with the cabinet countertop 100, and the sink body 1 portion below it 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.

[0026] 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 in 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 reinforcing rib density 3 of the upper part of the water tank body 1 is less than the reinforcing rib distribution density of 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-shaped reinforcement ribs 3 at the bottom of the tank body 1 are conducive to the transmission of the ultrasonic wave, thereby improving the cleaning effect. In this embodiment, the reinforcement 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 sink body 1 has a greater impact on the sink than the thermal deformation of the upper part of the sink body 1, the above structure is adopted to embed the metal strip 31 in the reinforcing rib 3 at the lower part of the sink body 1, which can improve the supporting force of the lower part of the sink body 1 and prevent the lower part of the sink body 1 from internal deformation due to cold shrinkage; at the same time, when the ultrasonic sounding device 4 is activated in the sink cleaning machine, the above metal strip 31 can resonate with the ultrasonic sounding device 4 to further enhance the ultrasonic cleaning effect.

[0027] A silencer structure 7 is provided in the middle of the inner wall of the water tank body 1 of this embodiment. The silencer structure 7 is a conical opening opened at the intersection of the grid of the corresponding reinforcement rib 3, 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 silencer 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 grid of the corresponding reinforcement rib 3 is also provided 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 grid of the corresponding reinforcement rib 3. With such a structure, the connection strength between the silencer structure 7 and the reinforcement 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 silence.

[0028] 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 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, reinforcing ribs 3 are provided on the outer wall surface of the sink body 1. On the one hand, the reinforcing ribs 3 can prevent the sink body 1 from being deformed by heat or cold. At the same time, when the sink body 1 starts the ultrasonic sounding device 4, the reinforcing ribs 3 at the lower part of the sink body 1 are also conducive to the propagation of ultrasonic waves. The metal strips 31 embedded in the reinforcing ribs 3 and exposed on the inner wall surface of the sink body 1 can resonate with the ultrasonic sounding device 4, further enhancing the ultrasonic cleaning effect.

Claims

1. A cleaning machine, comprising a water tank body (1) having a washing chamber (10), wherein the top of the water tank body (1) has an opening (11) communicating with the washing chamber (10), characterized in that: The open portion (11) of the water tank body (1) is made of metal at least at the position in contact with the installation plane, and the portion of the water tank body (1) below it is made of plastic. The outer peripheral wall of the water tank body (1) is provided with reinforcing ribs (3); 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 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); A sound-absorbing structure (7) is provided at least in the middle of the inner wall surface of the water tank body (1); The muffler structure (7) is a conical opening opened at the intersection of the corresponding reinforcing ribs (3), and the diameter of the conical opening gradually decreases from the inner wall surface of the water tank body (1) outwards; The conical opening is also provided with a cross-shaped reinforcement member (71) arranged at the intersection of the grid of the corresponding reinforcement rib (3), 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 as a whole with the intersection of the grid of the corresponding reinforcement rib (3).

2. The cleaning machine according to claim 1, 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).

3. The cleaning machine according to claim 1 or 2, 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).

4. The cleaning machine according to claim 3, 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).

5. The cleaning machine according to claim 4, 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.

6. The cleaning machine according to claim 1 or 2, characterized in that: An ultrasonic generating device (4) is provided at the bottom of the water tank body (1).

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