Cleaning machine

Abstract

The utility model relates to a cleaning machine, which is characterized in that a concave water return area is arranged at the bottom of a box body and is of a triangular structure with smooth transition corners; a first mounting area for mounting a water pump, a second mounting area for mounting a heating piece and a third mounting area for mounting a residue collecting basket are defined by each corner of the triangular structure and the adjacent straight edge part, and a turbidity sensor is arranged at the position, corresponding to the joint of the third mounting area and the first mounting area, of the inner wall of the water return area. The water pump is located in the first installation area, the side portion, facing the second installation area and the third installation area, of the water pump is the water incoming direction, the turbidity sensor is arranged at the joint of the first installation area and the third installation area and located in the water absorption direction, and the turbidity sensor can be washed with the help of large water absorption flow and flow speed; and meanwhile, the water flow detected by the turbidity sensor is the water flow after slag collection, so that the detection precision can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a washing machine used for washing tableware, fruits and vegetables. Background Art

[0002] Dishwashers have been widely used in home kitchens. Dishwashers are generally equipped with spray arms for spraying water columns, and a concave return water area is set at the bottom of the box. The top of the return water area is covered with a filter plate. A water pump is used to pump water from the return water area to the spray arm above the filter plate to achieve a circulating spray of washing water. Using an open water pump to draw water for the spray arm can greatly shorten the return water path, improve the return water efficiency, and facilitate the maintenance of the water pump. However, compared with dishwashers using closed water pumps, since dishwashers using open water pumps need to install the water pump in the return water area, affected by the flow characteristics of the fluid, it has higher requirements for the structure of the return water area.

[0003] The authorization announcement number CN218684270U, ​​"A Cleaning Machine" (application number: CN202222626119.2), discloses an open water pump and its matching structure with the cleaning machine. For dishwashers currently using open water pumps, in order to better control the cleaning process, temperature sensors and turbidity sensors have been installed in the dishwashers. However, due to the limitations of the current structure of the water cup and the return water area at the bottom of the dishwasher, the installation position of the sensor is not reasonable, which affects the detection accuracy; and residues are easily adhered to the sensor, further affecting the detection accuracy. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cleaning machine in which a sensor is arranged in a high-speed water return area to avoid residue adhesion and improve detection accuracy in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A cleaning machine comprises a box body, a concave water return area is provided at the bottom of the box body, a water pump, a slag collecting basket and a heating element are installed in the water return area, the water return area is a triangular structure with a smooth corner transition, each corner of the triangular structure and the adjacent straight side part respectively enclose a first installation area for installing a water pump, a second installation area for installing a heating element, and a third installation area for installing a slag collecting basket, and a turbidity sensor is provided on the inner wall of the water return area at the connection between the third installation area and the first installation area.

[0007] Preferably, the triangular structure comprises a first straight side, a second straight side and a third straight side connected end to end, and the straight sides are smoothly connected at the intersection through an arc segment.

[0008] Preferably, the first straight edge and the second straight edge are connected at the intersection by a first arc segment, the main body of the water pump is disc-shaped, and the first arc segment cooperates with the outer edge of the disc-shaped main body to form a radial limit. The first arc segment is exactly matched with the disc-shaped main body of the water pump, which not only reduces the assembly gap between the two and saves assembly space, but also the shapes of the first arc segment and the main body of the water pump are mutually matched and constrained, which facilitates the installation of the water pump.

[0009] It is further preferred that the water pump has a water inlet at the bottom, and the first straight edge and the second straight edge enclose a water suction port that is arranged on the side of the water pump and faces the slag basket and the heating element, and the turbidity sensor is located at the side edge of the water suction port. The triangular structure of the return water area is used to form a water suction port for gathering water from the heating element and the slag basket to the water pump, thereby avoiding the formation of vortexes, reducing fluid energy loss, and increasing the pressurization effect on the water flow, which is beneficial to improving the water pumping efficiency; the side edge of the water suction port is the position with the largest return water flow rate. The turbidity sensor is arranged here, and the turbidity sensor can be flushed with the help of a high water flow rate to avoid residue adhesion and keep the turbidity sensor clean.

[0010] Preferably, the second straight edge and the third straight edge are connected at the intersection by a second arc segment, the heating element is disc-shaped, and the second arc segment is matched with the outer edge of the disc-shaped heating element. The above structure not only saves assembly space, but also the inner wall of the return water area corresponding to the second arc segment can guide the return water so that it converges to the heating element and then is sucked into the water pump, which is conducive to improving the heating effect.

[0011] Preferably, the first straight edge and the third straight edge are connected at the intersection by a third arc segment, the slag collecting basket is cylindrical, and the third arc segment is adapted to the outer wall of the cylindrical slag collecting basket. The above structure not only saves assembly space, but also the inner wall of the return water area corresponding to the third arc segment can guide the return water to avoid the return water from being retained outside the slag collecting basket, thereby avoiding the accumulation of residue outside the slag collecting basket and improving the slag collecting effect and return water efficiency.

[0012] Further preferably, the turbidity sensor is arranged on the inner side wall of the water return area and is located at the junction of the first straight edge and the third arc segment. The turbidity sensor is arranged here, located on the water suction path of the water pump, and detects the water flow after the slag is collected by the slag collection basket, which is conducive to improving the detection accuracy.

[0013] Preferably, the turbidity sensor is arranged axially perpendicular to the inner wall of the water return area and close to the outer wall of the slag collecting basket. This structure is conducive to improving the cleaning effect and detection accuracy of the turbidity sensor.

[0014] Preferably, the inner side wall of the water return area is provided with a water flow inlet arranged toward the side of the slag collecting basket. The water flow inlet is arranged here so that the slag collecting basket and the turbidity sensor near the slag collecting basket can be flushed and cleaned when water enters, so as to keep both clean.

[0015] Preferably, the water flow inlet is located at the junction of the third straight edge and the third arc segment, and the water flow inlet is arranged corresponding to the central part of the slag collection basket. This structure is conducive to improving the flushing effect of the slag collection basket and preventing small residues from adhering to the side wall of the slag collection basket.

[0016] Preferably, the water return area is arranged in the center of the bottom wall of the box, the second straight side is arranged parallel to the first side of the bottom wall of the box, the third installation area is arranged corresponding to the central part of the second side of the bottom wall of the box, and the second side is arranged opposite to the first side. The above structure is adopted to maximize the water return efficiency, slag collection efficiency and heating efficiency.

[0017] Preferably, a water inlet is provided at the bottom of the water pump, and a flow channel is provided on the side of the water pump, which spirally extends toward the central part of the triangular structure, and the end of the flow channel extends upward and the upper end forms a water outlet, which is arranged in the center of the bottom of the box. Through such a structure, the water outlet of the water pump, which is offset relative to the return water area and the bottom of the washing chamber, is guided to the center of the bottom of the washing chamber to meet the installation requirements of the bottom spray arm.

[0018] Compared with the prior art, the advantages of the present invention are: the present invention sets the return water area as a triangular structure, and uses each angle of the triangular structure to install functional parts. The water pump is located in the first installation area, and its side facing the second installation area and the third installation area is the incoming water direction. The turbidity sensor is arranged at the junction of the first installation area and the third installation area, which is located in the water absorption direction. The turbidity sensor can be flushed with the help of a large water absorption flow rate and flow velocity, thereby avoiding the adhesion of residues on its surface. At the same time, the water flow detected by the turbidity sensor is the water flow after the residue is collected, which can also further improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a cleaning machine according to an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A partial top view of

[0021] Figure 3 This is a schematic diagram of the structure of the water pump according to an embodiment of the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the bottom structure;

[0023] Figure 5This is a structural diagram of a cleaning machine with a spray arm according to an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 5 As shown, the cleaning machine of this embodiment includes a box body 1, and a concave return water area 21 is arranged at the bottom of the box body 1. A water pump 3, a slag collecting basket 4, and a heating element 5 are installed in the return water area 21. The return water area 21 is a triangular structure with a smooth corner transition. Each corner of the triangular structure and its adjacent straight side portion respectively enclose a first installation area 10 for installing the water pump 3, a second installation area 20 for installing the heating element 5, and a third installation area 30 for installing the slag collecting basket 4. A turbidity sensor 7 is arranged on the inner wall of the return water area 21 at the connection between the third installation area 30 and the first installation area 10.

[0026] The triangular structure includes a first straight side 201, a second straight side 202, and a third straight side 203 connected end to end, and each straight side is smoothly connected by an arc segment at the intersection. The above-mentioned return water area 21 has three corners, and each corner and its adjacent straight side respectively enclose a first installation area 10 for installing the water pump 3, a second installation area 20 for installing the heating element 5, and a third installation area 30 for installing the slag collection basket 4. That is: the first corner of the triangular return water area 21 and its adjacent straight side enclose the first installation area 10 for installing the water pump 3, the second corner of the triangular structure and its adjacent straight side enclose the second installation area 20 for installing the heating element 5, and the third corner of the triangular structure and its adjacent straight side enclose the third installation area 30 for installing the slag collection basket 4. The return water area is divided into blocks using the corners of the triangular structure, and the installation requirements of each area are clarified, so that the water pump 3, the slag collecting basket 4, and the heating element 5 can be installed compactly in the return water area 21, thereby making full use of the installation space to reduce the overall volume of the return water area 21, thereby saving water and improving water efficiency.

[0027] The first straight edge 201 and the second straight edge 202 are connected at the intersection by the first arc segment 01. The main part of the water pump 3 is disc-shaped, and the first arc segment 01 cooperates with the outer edge of the disc-shaped main part to form a radial limit. The first arc segment 01 is exactly adapted to the disc-shaped main part of the water pump 3, which not only reduces the assembly gap between the two and saves assembly space, but also the shapes of the first arc segment 01 and the main part of the water pump 3 are mutually adapted and constrained, which facilitates the installation of the water pump.

[0028] The bottom of the water pump 3 is provided with a water inlet 33, and the first straight side 201 and the second straight side 202 enclose a water suction port 100 arranged on the side of the water pump 3 and facing the slag basket 4 and the heating element 5, and the turbidity sensor 7 is located at the side edge of the water suction port 100. The triangular structure of the return water area 21 is used to form a water suction port 100 for gathering water from the heating element 5 and the slag basket 4 to the water pump 3, so as to avoid the formation of vortexes, reduce the energy loss of the fluid, and improve the pressurization effect on the water flow, which is conducive to improving the pumping efficiency; the side edge of the water suction port 100 is the position with the maximum return water flow rate, and the turbidity sensor 7 is arranged here, and the turbidity sensor 7 can be flushed with the help of a high water flow rate to avoid the adhesion of residues and keep the turbidity sensor 7 clean.

[0029] The second straight edge 202 and the third straight edge 203 are connected at the intersection by the second arc segment 02. The heating element 5 is disc-shaped, and the second arc segment 02 is matched with the outer edge of the disc-shaped heating element 5. The above structure not only saves assembly space, but also the inner wall of the return water area 21 corresponding to the second arc segment 02 can guide the return water so that it converges to the heating element 5 and then is sucked into the water pump 3, which is conducive to improving the heating effect.

[0030] The first straight edge 201 and the third straight edge 203 are connected at the intersection by the third arc segment 03, the slag collecting basket 4 is cylindrical, and the third arc segment 03 is adapted to the outer wall surface of the cylindrical slag collecting basket 4. The above structure not only saves assembly space, but also the inner wall of the return water area 21 corresponding to the third arc segment 03 can guide the return water to avoid the return water from being retained outside the slag collecting basket 4, so as to avoid the accumulation of residue outside the slag collecting basket 4, thereby improving the slag collecting effect and the return water efficiency.

[0031] The turbidity sensor 7 is arranged on the inner side wall of the water return area 21 and is located at the junction of the first straight edge 201 and the third arc segment 03. The turbidity sensor 4 is arranged here, on the water suction path of the water pump 3, and detects the water flow after the slag collection basket 4 collects slag, which is conducive to improving the detection accuracy. The axial direction of the turbidity sensor 7 is perpendicular to the inner side wall of the water return area 21 and is arranged close to the outer side wall of the slag collection basket 4. This structure is conducive to improving the cleaning effect and detection accuracy of the turbidity sensor 7.

[0032] The inner wall of the return water area 21 is provided with a water flow inlet 211 arranged toward the side of the slag collecting basket 4. The water flow inlet 211 is arranged here so that the slag collecting basket 4 and the turbidity sensor 7 near the slag collecting basket 4 can be flushed and cleaned when water enters to keep both clean. The water flow inlet 211 is located at the junction of the third straight edge 203 and the third arc segment 03, and the water flow inlet 211 is arranged corresponding to the central part of the slag collecting basket 4. This structure is conducive to improving the flushing effect of the slag collecting basket 4 and preventing fine residues from adhering to the side wall of the slag collecting basket 4.

[0033] The water return area 21 is arranged in the center of the bottom wall of the box, the second straight edge 202 is arranged parallel to the first edge 101 of the bottom wall of the box, the third installation area 30 is arranged corresponding to the central part of the second edge 102 of the bottom wall of the box, and the second edge 102 is arranged opposite to the first edge 101. The above structure is adopted to maximize the water return efficiency, slag collection efficiency and heating efficiency.

[0034] The bottom of the water pump 3 is provided with a water inlet 33, and the side of the water pump 3 is provided with a flow channel 34 extending spirally toward the central part of the triangular structure, the end of the flow channel 34 extends upward and the upper end forms a water outlet 31, and the water outlet 31 is arranged in the center of the bottom of the box body 1. Through such a structure, the water outlet 31 of the water pump 3 offset relative to the return water area 21 and the bottom of the washing chamber is guided to the center of the bottom of the washing chamber to meet the installation requirements of the bottom spray arm 6.

[0035] Another water outlet 32 ​​may be further provided on the side of the water pump 3 of the present embodiment, and the water outlet 32 ​​may pass through the side of the water return area 21 and supply water to the spray arm at the top through the water conduit.

[0036] In this embodiment, the return water area 21 is set as a triangular structure, and functional parts are installed at each angle of the triangular structure. The water pump 3 is located in the first installation area 10, and its side facing the second installation area 20 and the third installation area 30 is the incoming water direction. The turbidity sensor 7 is set at the connection between the first installation area 10 and the third installation area 30, which is located in the water absorption direction. The turbidity sensor 7 can be flushed with a large water absorption flow rate and flow velocity, thereby avoiding the adhesion of residues on its surface. At the same time, the water flow detected by the turbidity sensor 7 is the water flow after the residue is collected, which can also further improve the detection accuracy.

[0037] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine, comprising a box (1), wherein a concave water return area (21) is provided at the bottom of the box (1), and a water pump (3), a slag collection basket (4), and a heating element (5) are installed in the water return area (21), characterized in that: The water return area (21) is a triangular structure with a smoothly rounded corner. Each corner of the triangular structure and its adjacent straight side portion respectively enclose a first installation area (10) for installing a water pump (3), a second installation area (20) for installing a heating element (5), and a third installation area (30) for installing a slag collecting basket (4). A turbidity sensor (7) is provided on the inner wall of the water return area (21) at the junction of the third installation area (30) and the first installation area (10).

2. The cleaning machine according to claim 1, characterized in that: The triangular structure comprises a first straight side (201), a second straight side (202), and a third straight side (203) connected end to end, and the straight sides are smoothly connected at the intersection through a circular arc segment.

3. The cleaning machine according to claim 2, characterized in that: The first straight edge (201) and the second straight edge (202) are connected at the intersection by a first arc segment (01); the main body of the water pump (3) is disc-shaped; the first arc segment (01) cooperates with the outer edge of the disc-shaped main body to form a radial limit.

4. The cleaning machine according to claim 3, characterized in that: The water pump (3) has a water inlet (33) at the bottom, and a water suction port (100) arranged on the side of the water pump (3) and facing the slag collecting basket (4) and the heating element (5) is enclosed between the first straight edge (201) and the second straight edge (202), and the turbidity sensor (7) is located at the side edge of the water suction port (100).

5. The cleaning machine according to claim 2, characterized in that: The second straight edge (202) and the third straight edge (203) are connected at the intersection by a second arc segment (02); the heating element (5) is in the shape of a circular disc; and the second arc segment (02) is adapted to the outer edge of the circular disc-shaped heating element (5).

6. The cleaning machine according to claim 2, characterized in that: The first straight edge (201) and the third straight edge (203) are connected at the intersection by a third arc segment (03); the slag collecting basket (4) is cylindrical; and the third arc segment (03) is adapted to the outer wall surface of the cylindrical slag collecting basket (4).

7. The cleaning machine according to claim 6, characterized in that: The turbidity sensor (7) is arranged on the inner side wall of the water return area (21) and is located at the junction of the first straight edge (201) and the third arc segment (03).

8. The cleaning machine according to claim 7, characterized in that: The turbidity sensor (7) is arranged axially perpendicular to the inner wall of the water return area (21) and close to the outer wall of the slag collecting basket (4).

9. The cleaning machine according to claim 6, characterized in that: The inner side wall of the water return area (21) is provided with a water flow inlet (211) arranged toward the side of the slag collecting basket (4).

10. The cleaning machine according to claim 9, characterized in that: The water flow input port (211) is located at the junction of the third straight edge (203) and the third arc segment (03), and the water flow input port (211) is arranged corresponding to the central part of the slag collecting basket (4).

11. The cleaning machine according to any one of claims 2 to 10, characterized in that: The water return area (21) is arranged in the center of the bottom wall of the box body, the second straight edge (202) is arranged parallel to the first edge (101) of the bottom wall of the box body, the third installation area (30) is arranged corresponding to the central part of the second edge (102) of the bottom wall of the box body, and the second edge (102) is arranged opposite to the first edge (101).

12. The cleaning machine according to claim 11, characterized in that: The bottom of the water pump (3) is provided with a water inlet (33), and the side of the water pump (3) is provided with a flow channel (34) that spirally extends toward the central part of the triangular structure, the end of the flow channel (34) extends upward and the upper end forms a water outlet (31), and the water outlet (31) is arranged in the center of the bottom of the box body (1).

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