A cleaning machine

Abstract

The present invention relates to a cleaning machine, comprising a sink body with a washing chamber, wherein the open portion of the sink body is made of metal at least at the position in contact with the installation plane, and the sink body portion below is made of plastic, and a metal reinforcement is arranged on the inner wall surface of the lower part of the sink body. The present invention uses plastic to make the sink body, which has strong plasticity, is convenient for deepening the depth of the sink body as needed, and also greatly reduces the production cost; the open portion 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 small bearing capacity of the plastic sink body and improves the stability of the installation of the sink body; a metal reinforcement is arranged on the inner wall surface of the lower part of the sink body, which can prevent the sink body from being deformed by heat or cold, and at the same time, can resonate with the ultrasonic sounding device at the bottom of the sink cleaning machine to improve 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 also includes a metal reinforcement, which is arranged on the inner wall surface of the lower part of the sink body.

[0008] In order to facilitate installation, a circumferentially arranged receiving groove is provided on the inner wall surface of the lower part of the water tank body, and the metal reinforcement is arranged in the receiving groove. This structure facilitates the positioning and installation of the metal reinforcement.

[0009] Preferably, the metal reinforcement comprises a first assembly ring, a second assembly ring and a connecting arm, wherein the first assembly ring is arranged near the upper edge of the receiving groove, the second assembly ring is arranged near the lower edge of the receiving groove, and the connecting arm is a plurality of arms that are spaced apart and vertically connected between the first assembly ring and the second assembly ring. Alternatively, the metal reinforcement 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. As the preferred structure of the metal reinforcement, the above two structures can realize two basic functions: first, since the cleaning machine often needs to alternate hot water and cold water for cleaning during the cleaning process, and the deformation degree caused by cold water and hot water on the plastic tank body is different, and when hot water is used for cleaning, the hot steam rises to the upper part of the tank body, and when cold water is used for cleaning, the cold water is generally located at the bottom of the tank body. Therefore, the deformation caused by cold shrinkage at the bottom of the tank body is the largest. The above metal reinforcement structure can support the lower part of the plastic tank body and prevent the lower part of the tank body from internal deformation due to cold shrinkage; second, an ultrasonic sounding device is often provided in the tank-type cleaning machine, and the above metal reinforcement structure can resonate with the ultrasonic sounding device to enhance the ultrasonic cleaning effect.

[0010] Preferably, the metal reinforcement 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 receiving 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 receiving groove, and the lower edge of the annular plate is bent into the receiving 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 receiving 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 receiving groove. Since hot water will fall back to the lower part of the water tank body after being sprayed out by the spray arm and stay in the lower part of the water tank body for a certain period of time, 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, a plurality of protrusions arranged at intervals are provided on the inner wall surface of the annular plate. The protrusions are formed in a cross shape and are formed integrally with the annular plate, and the positions corresponding to the protrusions on the outer wall surface of the annular plate are recessed toward the washing chamber. With the above structure, the protrusions can further strengthen the strength of the lower part of the water tank body. At the same time, the protrusions of the inner convex and outer concave structure greatly enhance the elasticity of the annular plate and form a stronger resonance with the ultrasonic wave, further improving the cleaning effect.

[0013] Preferably, the outer peripheral wall of the lower part of the water tank body corresponding to the accommodating groove is arranged to protrude outward so that the thickness of the lower part of the water tank body is consistent with the thickness of the upper part of the water tank body. This structure can ensure that the water tank body has good firmness and stability.

[0014] 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.

[0015] 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.

[0016] Preferably, the inner wall of the metal reinforcement is flush with the inner wall surface of the water tank body.

[0017] 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 a metal reinforcement is provided at the bottom of the plastic tank body near the ultrasonic generator, which can resonate with the ultrasonic generator to further improve the ultrasonic cleaning effect.

[0018] 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 in 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 arranges a metal reinforcement on the inner wall surface of the lower part of the sink body, which can prevent the sink body from being deformed by heat or cold, and at the same time, it can resonate with the ultrasonic sounding device at the bottom of the sink cleaning machine to improve the ultrasonic cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0021] Figure 3 for Figure 1 Cross-sectional view (with the water pump and spray arm hidden);

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0023] Figure 5 is a cross-sectional view of embodiment 2 of the present invention;

[0024] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of part B;

[0025] Figure 7 is a cross-sectional view of embodiment 3 of the present invention;

[0026] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part C. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1:

[0029] like Figures 1 to 4 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.

[0030] 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.

[0031] 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.

[0032] In this embodiment, a metal reinforcement 3 arranged along the circumference of the water tank body 1 is provided on the inner wall surface of the lower 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 lower part of the water tank body 1, and the metal reinforcement 3 is arranged in the receiving groove 13. After assembly, the inner wall of the metal reinforcement 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 reinforcement 3. The outer peripheral wall of the lower part of the water tank body 1 corresponding to the receiving groove 13 is arranged to protrude outward so that the thickness of the lower part of the water tank body 1 is consistent with the thickness of the upper part of the water tank body 1. This structure can ensure that the water tank body 1 has good firmness and stability.

[0033] Specifically, the metal reinforcement 3 of this embodiment includes a first assembly ring 31, a second assembly ring 32 and a connecting arm 33. The first assembly ring 31 is arranged near the upper edge of the accommodating groove 13, and the second assembly ring 32 is arranged near the lower edge of the accommodating groove 13. The connecting arm 33 is a plurality of and spaced apart vertically connected between the first assembly ring 31 and the second assembly ring 32. The metal reinforcement 3 can realize two basic functions: first, since the cleaning machine often needs to alternate hot water and cold water for cleaning during the cleaning process, and the deformation degree caused by cold water and hot water on the plastic tank body is different, and when hot water is used for cleaning, the hot steam rises and is located at the upper part of the tank body 1, and when cold water is used for cleaning, the cold water is generally located at the bottom of the tank body 1. Therefore, the deformation of the cold shrinkage at the bottom of the tank body 1 is the largest. The above-mentioned metal reinforcement 3 structure can support the lower part of the plastic tank body 1 and prevent the lower part of the tank body 1 from internal deformation due to cold shrinkage; second, an ultrasonic sounding device 4 is provided in the tank-type cleaning machine, and the above-mentioned metal reinforcement 3 structure can resonate with the ultrasonic sounding device 4 to enhance the ultrasonic cleaning effect.

[0034] 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, a metal reinforcement 3 is arranged on the inner wall surface of the lower part of the sink body 1. On the one hand, the metal reinforcement 3 can prevent the sink body 1 from being deformed by heat or cold, and at the same time, it can also resonate with the ultrasonic sounding device 4 at the bottom of the sink cleaning machine to improve the ultrasonic cleaning effect.

[0035] Embodiment 2:

[0036] The difference between this embodiment and the first embodiment is that the structure of the metal reinforcement 3 ′ is different.

[0037] like Figure 5 , 6As shown, the metal reinforcement 3' of this embodiment 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 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, 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.

[0038] The metal reinforcement 3' in this embodiment has the following functions in addition to the functions of the metal reinforcement 3 in Embodiment 1. Since the hot water will fall back to the lower part of the water tank body 1 after being sprayed out by the spray arm 5 and stay in the lower part of the water tank body 1 for a certain period of time, 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 achieve a certain degree of sound insulation effect.

[0039] Embodiment 3:

[0040] like Figure 7 , 8 As shown, the difference between this embodiment and embodiment 2 is that: a plurality of protrusions 33' arranged at intervals are provided on the inner wall surface of the annular plate of this embodiment, the protrusion 33' is formed in a cross shape and is formed integrally with the annular plate, and the position corresponding to the protrusion 33' on the outer wall surface of the annular plate is recessed toward the washing chamber 10. With the above structure, the protrusion 33' can further strengthen the strength of the lower part of the water tank body 1, and at the same time, the protrusion 33' of the inner convex and outer concave structure greatly enhances the elasticity of the annular plate and forms a stronger resonance with the ultrasonic wave, further improving the 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 water tank body (1) also includes a metal reinforcement (3), and the metal reinforcement (3) is arranged on the inner wall surface of the lower part of the water tank body (1); A circumferentially arranged receiving groove (13) is provided on the inner wall surface of the lower part of the water tank body (1), and the metal reinforcement member (3) is arranged in the receiving groove (13); The metal reinforcement (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') contacts 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') contacts 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); A metal assembly frame (2) for installation and load bearing is arranged around the opening (11) of the water tank body (1).

2. The cleaning machine according to claim 1, characterized in that: A plurality of protrusions (33') arranged at intervals are arranged on the inner wall surface of the annular plate.

3. The cleaning machine according to claim 2, characterized in that: The protrusion (33') is formed in a cross shape and is formed integrally with the annular plate, and the position on the outer wall of the annular plate corresponding to the protrusion (33') is recessed toward the washing chamber (10).

4. The cleaning machine according to claim 3, characterized in that: The outer peripheral wall of the lower part of the water tank body (1) corresponding to the accommodating groove (13) is arranged to protrude outwards so that the thickness of the lower part of the water tank body (1) is consistent with the thickness of the upper part of the water tank body (1).

5. The cleaning machine according to any one of claims 1 to 4, 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).

6. The cleaning machine according to claim 5, 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.

7. The cleaning machine according to any one of claims 1 to 4, characterized in that: The inner wall of the metal reinforcement (3) is flush with the inner wall surface of the water tank body (1).

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

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