A cleaning machine

Abstract

The present invention relates to a cleaning machine, including a water tank body and a water pump mechanism. The interior of the water tank body is hollow to form a washing chamber. The bottom wall of the water tank body is partially concave to form a drain area. The top of the drain area is covered with a drain plate. The water pump mechanism is used to pump water in the drain area to the washing chamber above the drain plate. The bottom wall of the water tank body corresponding to the drain area below is at least partially missing to form an installation opening. A bottom plate covering the installation opening is provided at the installation opening. The water pump mechanism is installed on the bottom plate. A drainage port is provided on the bottom plate. The bottom plate is provided with a drainage port. The present invention integrates all functional components of the cleaning machine on the bottom plate. The bottom plate is installed at the installation opening at the bottom of the water tank body to form the bottom of the washing chamber. In this way, there is no need to open multiple assembly ports for installing different functional components on the water tank body, which not only reduces the difficulty of installation and maintenance, but also greatly reduces the risk of water leakage because only one installation port needs to be provided at the bottom of the water tank body.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a washing machine for washing dishes, fruits and vegetables. Background Art

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. Currently, dishwashers on the market are generally divided into three types: desktop, cabinet, and tank. Among them, desktop 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] The structure of the water tank cleaning machine on the market is mainly the structure mentioned in the applicant's prior application CN201310750968.1 "Water tank cleaning machine", which 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, 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 a drain hole, and a rotating spray arm connected to the water pump fluid and having a water outlet hole is arranged above the drain plate. In addition, in order to further improve the cleaning effect, the applicant's prior applications CN201810334714.4 and CN201810334713.X "Box structure of water tank cleaning machine" are based on the above structure, and a heating plate that can heat the water in the drain area is arranged at the bottom of the water tank body; in order to facilitate slag discharge, a slag basket corresponding to the drainage outlet is arranged at the bottom of the drain area.

[0004] The water pump, drain port, heating plate and other functional components of the above-mentioned water tank body are separately distributed at the bottom of the water tank body, which not only makes installation and maintenance difficult, but also increases the risk of water leakage. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a cleaning machine which is convenient for integrating and installing various functional components so as to reduce the difficulty of installation and maintenance and the risk of water leakage in view of the current status of the prior art.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a cleaning machine, including a water tank body and a water pumping mechanism, the interior of the water tank body is hollow to form a washing chamber, the bottom wall of the water tank body is partially recessed to form a drain area, the top of the drain area is covered with a drain plate, and the water pumping mechanism is used to pump water in the drain area into the washing chamber above the drain plate, characterized in that: the bottom wall of the water tank body corresponding to the drain area is at least partially missing to form an installation opening, a bottom plate covering the installation opening is provided at the installation opening, the water pumping mechanism is installed on the bottom plate, and a drainage outlet is provided on the bottom plate.

[0007] Preferably, the bottom plate is also provided with a heating plate capable of heating the water in the drain area. Using the heating plate to heat the washing water is beneficial to improving the cleaning effect, and the heating plate is arranged on the bottom plate for easy assembly and later maintenance.

[0008] Preferably, the water pump mechanism is installed in the central part of the bottom plate, the heating plate is arc-shaped and arranged on the bottom plate around the periphery of the water pump mechanism, and the drain port is located beside the water pump mechanism. This arrangement facilitates rapid heating of washing water and rapid drainage; at the same time, the water pump mechanism, the heating plate and other functional components are integrated and installed on the bottom plate, so there is no need to open a mounting port on the sink body. During assembly, each functional component can be installed on the bottom plate first, and then the bottom plate can be fixed to the bottom of the sink body, which is convenient for installation and assembly. During maintenance, all functional components can be inspected and repaired by removing the bottom plate, which is very convenient.

[0009] Preferably, the drain plate is circular and has an opening in the center for water to be drawn from bottom to top. The upper wall of the drain plate gradually slopes downward from the edge to the center, and a slag collection basket is provided on the drain plate beside the opening. In the prior art, due to the limitation of the installation position of each functional component on the bottom wall of the water tank body, the drain plate needs to be made into a special-shaped structure, which causes the water above the drain plate to flow in a disordered direction when entering the bottom of the drain plate, which increases the water flow fluctuation to a certain extent, resulting in intense gas-liquid exchange near the drain area, and a large number of bubbles entering the spray arm, affecting the water flow head and cleaning effect; the present invention integrates each functional component on the bottom plate, and only needs to open an installation port on the bottom wall of the water tank body, so the drain plate can be made into a circle, and the water flow on the drain plate tends to flow from the edge to the center, which is conducive to improving the stability of the water flow direction and reducing water flow fluctuation, thereby maintaining a high water flow head and a good cleaning effect.

[0010] Further preferably, the debris collection basket is arc-shaped and the inner edge is arranged close to the opening, and the inclination of the drain plate portion outside the debris collection basket is greater than the inclination of other portions of the drain plate. Due to the adoption of the above-mentioned drain plate structure, the flow trend of water on the drain plate is to flow from the edge to the central part. After adopting the debris collection basket with the above-mentioned structure, the debris collection basket is located on the loop line of the drain plate, which is conducive to improving the debris collection effect and preventing food residues from being scattered due to water flow turbulence. In addition, the water flowing radially on the drain plate can also flush the inner wall of the debris collection basket, preventing a large amount of food residues from accumulating on the side wall of the debris collection basket, and keeping the debris collection basket relatively clean.

[0011] In each of the above schemes, the water pump mechanism includes a spray arm, a motor and an impeller assembly. The spray arm is arranged in the washing chamber and above the drain plate. A water inlet is provided on the lower wall of the spray arm. The motor is arranged on the outer bottom wall of the bottom plate and the upper end of the output shaft vertically passes through the bottom plate and extends into the spray arm water inlet. The impeller assembly is arranged on the motor output shaft and the upper part is located in the spray arm water inlet and the lower part is located in the drain area. The upper part of the impeller assembly is a centrifugal impeller, which is used to disperse the water entering the spray arm and spray it out from the water spray hole. The lower part of the impeller assembly is an axial flow impeller, which is used to draw water in the drain area upward so that the water quickly enters the spray arm.

[0012] Preferably, a water storage chamber is provided at the bottom of the motor, the lower end of the motor output shaft extends into the water storage chamber and is connected to a drainage impeller that can rotate therewith, the water storage chamber is connected to a drainage port, and the side of the water storage chamber is also provided with a water outlet for water to be discharged from the water storage chamber. After the washing machine has finished washing, the motor reverses, and the water in the washing chamber can be sucked into the water storage chamber through the drainage impeller, and because the drainage impeller is a centrifugal structure, the waste water can be discharged from the water outlet on the side of the water storage chamber, thereby using a power mechanism to realize the rotation of the spray arm for washing and drainage, simplifying the overall structure.

[0013] Preferably, an inverted U-shaped assembly edge is formed at the edge of the bottom plate, and the assembly edge is placed on the upper edge of the bottom wall of the water tank body near the installation opening, and an installation space for installing a sealing ring is formed between the inverted U-shaped assembly edge and the bottom wall of the water tank body. Such an assembly method is not only convenient for assembly, but also conducive to improving the sealing between the bottom plate and the water tank body to prevent water leakage.

[0014] Further preferably, the U-shaped structure at the outer edge of the bottom plate and the main body of the bottom plate form a bent portion, and the outer bottom wall of the water tank body is provided with a supporting edge extending into the installation opening, and the bent portion is supported on the supporting edge. Such a structure is adopted to further improve the sealing performance.

[0015] Preferably, the portion of the bottom wall of the water tank body corresponding to the drainage area is recessed in a step-like manner from outside to inside, and the cross section of the recessed portion is formed into a Z-shaped structure. The U-shaped assembly edge of the bottom plate is placed on the transverse portion of the bottom of the Z-shaped structure, and the upper wall surface of the assembly edge is not higher than the top wall of the Z-shaped structure. This structure is conducive to avoiding the accumulation of fine debris in a local area when draining water.

[0016] Compared with the prior art, the advantages of the present invention are that the present invention integrates all functional components of the cleaning machine on the bottom plate, and the bottom plate is installed at the installation opening at the bottom of the sink body to form the bottom of the washing chamber. In this way, there is no need to open multiple assembly openings on the sink body for installing different functional components, which not only reduces the difficulty of installation and maintenance, but also greatly reduces the risk of water leakage because only one installation opening needs to be opened at the bottom of the sink body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a structural schematic diagram of another angle of an embodiment of the present invention;

[0019] Figure 3 is a cross-sectional view of an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A magnified view of some structures;

[0021] Figure 5 Schematic diagram of the assembly structure of the functional components and the base plate in an embodiment of the present invention;

[0022] Figure 6 for Figure 5 A schematic diagram of the structure from another angle;

[0023] Figure 7 This is a schematic diagram of the structure of the bottom plate in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the water tank body in an embodiment of the present invention;

[0025] Fig. 9 It is a schematic diagram of the assembly structure of the water tank body and the bottom plate in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings.

[0027] like Figures 1 to 9As shown, the cleaning machine of this embodiment includes a water tank body 1 and a water pumping mechanism 2. The interior of the water tank body 1 is hollow to form a washing chamber 11. The bottom wall of the water tank body 1 is partially concave to form a drain area 12. The top of the drain area 12 is covered with a drain plate 13. The drain plate 13 is densely covered with drain holes. The water on the drain plate 13 can enter the drain area 12 through the drain holes. The water pumping mechanism 2 is used to pump the water in the drain area 12 into the washing chamber 11 above the drain plate 13.

[0028] In this embodiment, if Figure 8 As shown, the bottom wall of the water tank body 1 corresponding to the drain area 12 is at least partially missing to form an installation opening 14, and a bottom plate 3 covering the installation opening 14 is provided at the installation opening 14, and the water pump mechanism 2 is installed on the bottom plate 3, and a drain port 31 is opened on the bottom plate 3. A heating plate 4 capable of heating the water in the drain area 12 is also provided on the bottom plate 3. The heating plate 4 heats the washing water, which is beneficial to improving the washing effect. The heating plate 4 is arranged on the bottom plate 3 for easy assembly and later maintenance.

[0029] The bottom plate 3 of this embodiment is circular, the pump mechanism 2 is installed in the central part of the circular bottom plate 3, the heating plate 4 is arc-shaped and arranged on the bottom plate 3 around the periphery of the pump mechanism 2, and the drain port 31 is located beside the pump mechanism 2. This arrangement is convenient for rapid heating of washing water and rapid drainage; at the same time, the pump mechanism 2, the heating plate 4 and other functional components are integrated and installed on the bottom plate 3, so there is no need to open a mounting port on the water tank body 1. When assembling, each functional component can be installed on the bottom plate 3 first, and then the bottom plate 3 is fixed to the bottom of the water tank body 1, which is convenient for installation and assembly, and when repairing, only the bottom plate 3 needs to be removed to realize the inspection and repair of all functional components, which is very convenient.

[0030] like Figure 4As shown, the drain plate 13 is circular and has an opening 131 in the center for drawing water from bottom to top. The upper wall of the drain plate 13 gradually slopes downward from the edge to the center. The drain plate 13 is provided with a slag collecting basket 5 located beside the opening 131. The upper edge of the slag collecting basket 5 is mounted on the drain plate 13, and the lower part of the slag collecting basket 5 is located in the drain area 12. In the prior art, due to the limitation of the installation position of each functional component on the bottom wall of the sink body 1, the drain plate 13 needs to be made into a special-shaped structure, which causes the water above the drain plate 13 to have a disordered flow direction when entering the bottom of the drain plate 13, which increases the water flow fluctuation to a certain extent, resulting in intense gas-liquid exchange near the drain area 12, and causing a large number of bubbles to enter the spray arm, affecting the water head and cleaning effect; in this embodiment, since the functional components are integrated on the bottom plate 3, only one installation port 14 is opened on the bottom wall of the sink body 1, so the drain plate 13 can be made into a circle, and the water flows on the drain plate 13 in a trend from the edge to the center, which is beneficial to improve the stability of the water flow direction and reduce the water flow fluctuation, thereby maintaining a high water head and a good cleaning effect.

[0031] The slag collecting basket 5 of this embodiment is arc-shaped and its inner edge is arranged near the opening 131. The inclination of the drain plate 13 portion 130 outside the slag collecting basket 5 is greater than the inclination of other portions of the drain plate 13. Due to the adoption of the above-mentioned drain plate 13 structure, the flow trend of water on the drain plate 13 is to flow from the edge to the central part. After the slag collecting basket 5 with the above-mentioned structure is adopted, the slag collecting basket 5 is located on the loop line of the drain plate 13, which is conducive to improving the slag collecting effect and preventing food residues from being scattered due to the turbulence of water flow. In addition, the water flowing radially on the drain plate 13 can also flush the inner wall of the slag collecting basket 5, preventing a large amount of food residues from gathering on the side wall of the slag collecting basket 5, and keeping the slag collecting basket 5 relatively clean.

[0032] In this embodiment, the water pump mechanism 2 includes a spray arm 21, a motor 22 and an impeller assembly 23. The spray arm 21 is arranged in the washing chamber 11 and is located above the drain plate 13. A water inlet 211 is opened on the lower wall surface of the spray arm 21, and a plurality of water spray holes 212 are spaced apart on the upper wall surface of the spray arm 21. The water inlet 211 is arranged corresponding to the opening 131 on the drain plate 13. The motor 22 is arranged on the outer bottom wall of the bottom plate 3 and the upper end of the output shaft 221 vertically passes through the bottom plate 3 and extends into the water inlet 211 of the spray arm 21. The impeller assembly 23 is arranged on the output shaft 221 of the motor 22 and the upper part is located in the water inlet 211 of the spray arm 21 and the lower part is located in the drain area 12. The upper part of the impeller assembly 23 is a centrifugal impeller 231, which is used to disperse the water entering the spray arm 21 and spray it out from the spray hole 212. The lower part of the impeller assembly 23 is an axial flow impeller 232, which is used to draw the water in the drain area 12 upward so that the water quickly enters the spray arm 21. A vertically arranged guide seat 6 is provided on the upper wall surface of the bottom plate 3. The upper end of the guide seat 6 passes through the opening 131 on the drain plate 13 and is located above the drain plate 13. The spray arm 21 is rotatably arranged at the upper end of the guide seat 6. The specific connection structure between the spray arm 21 and the guide seat 6 is the same as the connection structure in the existing water tank cleaning machine of the applicant, which will not be repeated here.

[0033] like Figures 7 to 9 As shown, an assembly edge 32 in an inverted U-shaped structure is formed at the edge of the bottom plate 3. The assembly edge 32 is placed on the upper edge of the bottom wall of the water tank body 1 near the installation opening 14, and an installation space 321 for installing a sealing ring is formed between the inverted U-shaped structure of the assembly edge 32 and the bottom wall of the water tank body 1. This assembly method is not only convenient for assembly, but also helps to improve the sealing between the bottom plate 3 and the water tank body 1 to prevent water leakage. A bending portion 33 is formed at the junction of the U-shaped structure on the outer edge of the bottom plate 3 and the main part of the bottom plate 3. A supporting edge 15 extending into the installation opening 14 is provided on the outer bottom wall of the water tank body 1, and the bending portion 33 is supported on the supporting edge 15. The portion of the bottom wall of the sink body 1 corresponding to the drain area 12 is recessed downward in a stepped manner from the outside to the inside, and the cross-section of the recessed portion is formed into a Z-shaped structure 16. The U-shaped assembly edge 32 of the bottom plate 3 is placed on the transverse portion 161 at the bottom of the Z-shaped structure 16, and the upper wall surface of the assembly edge 32 is not higher than the top wall of the Z-shaped structure 16. This structure is beneficial for avoiding local accumulation of fine debris during drainage.

[0034] In this embodiment, if Figure 4As shown, a water storage chamber 222 is provided at the bottom of the motor 22, the lower end of the output shaft 221 of the motor 22 extends into the water storage chamber 222 and is connected to a drainage impeller 7 that can rotate therewith, the water storage chamber 222 is connected to the drainage port 31 through a water guide pipe 71, and a water outlet 2221 is also provided on the side of the water storage chamber 222 for supplying water to be discharged from the water storage chamber 222. The output shaft 221 of the motor 22 of this embodiment can rotate forward and reverse, when the motor output shaft 221 rotates forward, the water in the drainage area 12 can be pumped into the spray arm 21 through the impeller assembly 23, and when the motor output shaft 221 rotates reversely, the water in the drainage area 12 can be discharged through the water guide pipe 71 and the water storage chamber 222 through the drainage impeller 7, thereby using a power mechanism to realize the rotation of the spray arm 21 for washing and drainage, simplifying the overall structure.

[0035] In this embodiment, various functional components of the cleaning machine are integrated on the bottom plate 3, and the bottom plate 3 is installed at the installation opening 14 at the bottom of the sink body 1 to form the bottom of the washing chamber 11. In this way, there is no need to open multiple assembly openings on the sink body 1 for installing different functional components, which not only reduces the difficulty of installation and maintenance, but also greatly reduces the risk of water leakage because only one installation opening 14 is required at the bottom of the sink body 1.

Claims

1. A cleaning machine, comprising a water tank body (1) and a water pump mechanism (2), wherein the bottom wall of the water tank body (1) is partially concave to form a drain area (12), the top of the drain area (12) is covered with a drain plate (13), and the water pump mechanism (2) is used to pump water in the drain area (12) to above the drain plate (13), characterized in that: The bottom wall of the water tank body (1) corresponding to the drainage area (12) is at least partially missing to form a mounting opening (14), a bottom plate (3) covering the mounting opening (14) is provided at the mounting opening (14), the water pump mechanism (2) is installed on the bottom plate (3), and a drainage opening (31) is provided on the bottom plate (3); The bottom plate (3) is also provided with a heating plate (4) capable of heating water in the drain area (12); The water pump mechanism (2) is installed in the central part of the bottom plate (3); the heating plate (4) is arc-shaped and arranged on the bottom plate (3) around the periphery of the water pump mechanism (2); and the drainage port (31) is located beside the water pump mechanism (2); The drain plate (13) is provided with an opening (131) in the center for drawing water from bottom to top. The upper wall of the drain plate (13) gradually slopes downward from the edge to the center. The drain plate (13) is provided with a slag collection basket (5) located beside the opening (131). The slag collecting basket (5) is arc-shaped and its inner edge is arranged close to the opening (131); the inclination of the drain plate (13) portion outside the slag collecting basket (5) is greater than the inclination of other portions of the drain plate (13).

2. The cleaning machine according to claim 1, characterized in that: The water pump mechanism (2) comprises a spray arm (21), a motor (22) and an impeller assembly (23); the spray arm (21) is arranged in the water tank body (1) and is located above the drain plate (13); a water inlet (211) is provided on the lower wall surface of the spray arm (21); the motor (22) is arranged on the outer bottom wall of the bottom plate (3) and the upper end of the output shaft (221) vertically passes through the bottom plate (3) and extends into the water inlet (211) of the spray arm (21); the impeller assembly (23) is arranged on the output shaft (221) of the motor (22) and the upper part is located in the water inlet (211) of the spray arm (21) and the lower part is located in the drain area (12).

3. The cleaning machine according to claim 2, characterized in that: A water storage chamber (222) is provided at the bottom of the motor (22); the lower end of the output shaft (221) of the motor (22) extends into the water storage chamber (222) and is connected to a drainage impeller (7) that can rotate therewith; the water storage chamber (222) is connected to a drainage port (31); and a water outlet (2221) for discharging water from the water storage chamber (222) is also provided on the side of the water storage chamber (222).

4. The cleaning machine according to any one of claims 1 to 3, characterized in that: An assembly edge (32) in the form of an inverted U-shaped structure is formed at the edge of the bottom plate (3), and the assembly edge (32) is placed on the upper edge of the bottom wall of the water tank body (1) near the installation opening (14), and an installation space (321) for installing a sealing ring is formed between the inverted U-shaped structure of the assembly edge (32) and the bottom wall of the water tank body (1).

5. The cleaning machine according to claim 4, characterized in that: A bent portion (33) is formed at the junction of the U-shaped structure at the outer edge of the bottom plate (3) and the main body of the bottom plate (3); a supporting edge (15) extending into the mounting opening (14) is provided on the outer bottom wall of the water tank body (1); and the bent portion (33) is supported on the supporting edge (15).

6. The cleaning machine according to claim 4, characterized in that: The portion of the bottom wall of the water tank body (1) corresponding to the drainage area (12) is recessed in a step-like manner from the outside to the inside, and the cross-section of the recessed portion is formed into a Z-shaped structure (16). The U-shaped assembly edge (32) of the bottom plate (3) is placed on the transverse portion of the bottom of the Z-shaped structure (16), and the upper wall surface of the assembly edge (32) is not higher than the top wall of the Z-shaped structure (16).

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