Cleaning machine

Abstract

The utility model relates to a cleaning machine which comprises a box body, a concave water return area is arranged at the bottom of the box body, a water pump, a slag collecting basket and a heating piece are installed in the water return area, and the water return area 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 part of the triangular structure and the adjacent straight edge part, and the bottom wall of the water return area is locally lifted upwards to form the second mounting area. The water return area is of a triangular structure, the space of the water return area is utilized to the maximum extent, the size of the water return area is greatly reduced, the use amount of washing water every time is saved, and the water return speed and the water efficiency are improved. The height of the second installation area is increased, the size of the water return area is further reduced, and the water flow above the heating piece is controlled, so that the water consumption is reduced, and the heating effect is 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 improve the cleaning effect, a heating element for heating the return water is usually set in the return water area of ​​the cleaning machine. The heating element is offset relative to the water pump in the central part of the bottom wall of the inner tank, which affects the water flow through the heating element and the heating efficiency; and if the heating area corresponding to the heating element is enlarged in order to improve the heating efficiency, it will make it difficult to reduce the total volume of the return water chamber, resulting in a certain amount of water waste, affecting the water efficiency of the cleaning machine. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cleaning machine which can make the best use of space to arrange various functional parts so as to improve heating efficiency, save water and improve water efficiency 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 arranged 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 transition at the corners, each corner of the triangular structure and the straight side part adjacent thereto respectively enclose a first installation area for installing the water pump, a second installation area for installing the heating element and a third installation area for installing the slag collecting basket, and the bottom wall of the water return area is partially raised upward to form the second installation area.

[0007] Preferably, the upper surface of the second installation area gradually slopes downward from the edge to the inner side of the water return area to form a guide slope, and the heating element is arranged on the guide slope. Such a structure is adopted to improve the guide effect of the area where the heating element is located, and on the basis of improving the water return efficiency and heating efficiency, it prevents the accumulation of residues on the surface of the heating element.

[0008] Preferably, a mounting opening is provided on the bottom wall of the water return area corresponding to the diversion slope, and at least a part of the heating element is embedded in the mounting opening and sealed by an annular sealing gasket, and in the assembled state, the upper surface of the heating element constitutes a part of the diversion slope. This structure is convenient for assembly and saves installation space in the water return area.

[0009] Preferably, the heating element comprises a heating plate, a heating tube and a thermostat, at least the middle portion of the heating plate is embedded in the mounting opening and the mounting opening is closed, and the heating tube and the thermostat are both arranged on the lower surface of the heating plate and are directly contacted and connected with the heating plate respectively. In the prior art, the thermostat is usually placed on the surface of the heating tube, so that when the back of the heating plate is scaled or bubbled, the temperature rise of the heating tube will be higher, causing the thermostat to be uncontrollable and easy to jump; the utility model arranges the thermostat on the bottom wall of the heating plate, so that the temperature control is more stable, which is conducive to improving the temperature control accuracy.

[0010] Preferably, the heating tube is arranged in a spiral shape on the lower surface of the heating plate, and a receiving cavity is enclosed within the spiral heating tube, and the temperature controller is arranged in the receiving cavity. The temperature controller includes an automatic temperature controller and a manual temperature controller respectively connected to the ends of the heating tube by electrical signals. The above structure is conducive to further improving the temperature control accuracy.

[0011] Preferably, the guide slope forms an angle of 3 to 5 degrees with the horizontal plane. With such a structure, it is convenient to drain the remaining water on the guide slope and the heating plate surface, and prevent water stains from remaining and causing scale.

[0012] Preferably, the depth of the first installation area is greater than the depth of the second installation area, a water suction port is provided at the bottom of the water pump, and the height of the lowest point of the diversion slope is not lower than the height of the water suction port. Further preferably, the height of the lowest point of the diversion slope is higher than the height of the water suction port. This structure is conducive to improving the water return efficiency.

[0013] Preferably, the depths of the third installation area, the first installation area, and the second installation area decrease in sequence, and the second installation area is smoothly connected to the first installation area and the third installation area through a transition slope. This structure is conducive to improving the return water efficiency and slag collection effect.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] Preferably, the side of the water pump is provided with a flow channel that spirally extends toward the central part of the triangular structure, the end of the flow channel extends upward and the upper end forms a water outlet, and the water outlet is arranged in the center of the bottom of the box. Through such a structure, the water outlet of the water pump 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.

[0020] Compared with the prior art, the advantages of the utility model are: the utility model sets the return water area as a triangular structure, and uses each corner area of ​​the triangular structure to install a water pump, a slag basket, and a heating element, thereby maximizing the use of the space in the return water area, which not only greatly reduces the volume of the return water area, which is beneficial to saving the amount of washing water each time, but also helps to improve the return water speed and water efficiency; raising the height of the second installation area, and further reducing the volume of the return water area, and controlling the water flow above the heating element, thereby saving water and improving the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the water return area of ​​an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the cleaning machine according to the embodiment of the utility model (hiding the filter plate, spray arm, etc.);

[0023] Figure 3 This is a schematic diagram of the structure of the water pump according to the embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the lower structure of the water pump in the embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of a cleaning machine in an embodiment of the utility model;

[0026] Figure 6 It is a partial cross-sectional view of a cleaning machine in an embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the heating element in the embodiment of the utility model;

[0028] Figure 8 for Figure 7 Schematic diagram of the bottom structure. DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] The cleaning machine of this embodiment adopts an open water pump, that is, the water pump is installed in the washing chamber of the cleaning machine, and the water inlet of the water pump is directly connected to the washing space without the need for additional pipeline connection, which greatly shortens the return water stroke.

[0031] like Figures 1 to 8 As shown, the cleaning machine of this embodiment includes a box body 1, a concave water return area 21 is provided at the bottom of the box body 1, a water pump 3, a slag collection basket 4, and a heating element 5 are installed in the water return area 21, and the water return area 21 is a triangular structure with a smooth transition of the corners, and each corner of the triangular structure and its adjacent straight side parts 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. The driving motor of the water pump 3 is installed on the outer bottom wall of the box body, and the output shaft passes through the bottom wall of the box body 1 and is connected to the water pump 3. The bottom wall of the water return area 21 is partially raised upward to form the second installation area 20.

[0032] The upper surface of the second installation area 20 gradually slopes downward from the edge to the inner side of the water return area 21 to form a guide slope 20a, and the heating element 5 is arranged on the guide slope 20a. Such a structure is adopted to improve the guide effect of the area where the heating element 5 is located, and on the basis of improving the water return efficiency and heating efficiency, it prevents the accumulation of residues on the surface of the heating element.

[0033] The bottom wall of the water return area 21 corresponding to the guide slope 20a is provided with an installation opening 20b, and at least a part of the heating element 5 is embedded in the installation opening 20b and sealed by an annular sealing gasket. In the assembled state, the upper surface of the heating element 5 constitutes a part of the guide slope 20a. This structure is easy to assemble and saves installation space in the water return area 21.

[0034] The heating element 5 includes a heating plate 51, a heating tube 52 and a thermostat 53. At least the middle of the heating plate 51 is embedded in the mounting opening 20b and the mounting opening 20b is closed. The heating tube 52 and the thermostat 53 are both arranged on the lower surface of the heating plate 51 and are directly contacted and connected with the heating plate 51. In the prior art, the thermostat is usually placed on the surface of the heating tube. In this way, when the back of the heating plate is scaled or bubbled, the temperature rise of the heating tube will be higher, resulting in the thermostat being uncontrollable and easy to jump; the utility model arranges the thermostat on the bottom wall of the heating plate, so that the temperature control is more stable, which is conducive to improving the temperature control accuracy.

[0035] The heating tube 52 is arranged in a spiral shape on the lower surface of the heating plate 51, and a receiving cavity 520 is enclosed within the spiral heating tube 52. The temperature controller 53 is arranged in the receiving cavity 520. The temperature controller 53 includes an automatic temperature controller 531 and a manual temperature controller 532 which are respectively connected to the ends of the heating tube 52 by electrical signals. The automatic temperature controller 531 and the manual temperature controller 532 can be set with different starting temperatures, which is conducive to further improving the temperature control accuracy.

[0036] The guide slope 20a forms an angle a of 3 to 5° with the horizontal plane. With such a structure, it is convenient to drain the remaining water on the guide slope 20a and the heating plate surface 51, and prevent water stains from remaining and causing scale.

[0037] The depth of the first installation area 10 is greater than the depth of the second installation area 20, a water suction port 33 is provided at the bottom of the water pump 3, and the height of the lowest point of the guide slope 20a is not lower than the height of the water suction port 33, preferably the height of the lowest point of the guide slope 20a is slightly higher than the height of the water suction port 33. This structure is conducive to improving the water return efficiency.

[0038] The depths of the third installation area 30, the first installation area 10, and the second installation area 20 decrease in sequence, and the second installation area 20 is smoothly connected to the first installation area 10 and the third installation area 30 via a transition slope 100. This structure is conducive to improving the return water efficiency and the slag collection effect.

[0039] In this embodiment, 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] In this embodiment, the return water area 21 is set as a triangular structure, and each corner area of ​​the triangular structure is used to install the water pump 3, the slag collecting basket 4, and the heating element 5, so as to maximize the use of the space of the return water area 21, which not only greatly reduces the volume of the return water area 21, but also helps to save the amount of washing water each time, and helps to improve the return water speed and water efficiency; the height of the second installation area 20 is raised, and the volume of the return water area 21 is further reduced, and the water flow above the heating element 5 is controlled, so as to save water and improve the heating effect.

[0046] 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), 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, and 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), and the bottom wall of the water return area (21) is partially raised upward to form the second installation area (20).

2. The cleaning machine according to claim 1, characterized in that: The upper surface of the second installation area (20) gradually slopes downward from the edge to the inner side of the water return area (21) to form a guide slope (20a), and the heating element (5) is arranged on the guide slope (20a).

3. The cleaning machine according to claim 2, characterized in that: The bottom wall of the water return area (21) corresponding to the guide slope (20a) is provided with an installation opening (20b), and at least a part of the heating element (5) is embedded in the installation opening (20b). In the assembled state, the upper surface of the heating element (5) constitutes a part of the guide slope (20a).

4. The cleaning machine according to claim 2, characterized in that: The heating element (5) comprises a heating plate (51), a heating tube (52) and a temperature controller (53); at least the middle portion of the heating plate (51) is embedded in the mounting opening (20b) and the mounting opening (20b) is closed; the heating tube (52) and the temperature controller (53) are both arranged on the lower surface of the heating plate (51) and are respectively in direct contact with and connected to the heating plate (51).

5. The cleaning machine according to claim 4, characterized in that: The heating tube (52) is arranged in a spiral shape on the lower surface of the heating plate (51), and a receiving cavity (520) is enclosed within the spiral heating tube (52), and the temperature controller (53) is arranged in the receiving cavity (520).

6. The cleaning machine according to claim 5, characterized in that: The temperature controller (53) comprises an automatic temperature controller (531) and a manual temperature controller (532) which are respectively connected to the ends of the heating tube (52) by electrical signals.

7. The cleaning machine according to claim 2, characterized in that: An included angle (a) of 3 to 5° is formed between the guide slope (20a) and the horizontal plane.

8. The cleaning machine according to any one of claims 2 to 7, characterized in that: The depth of the first installation area (10) is greater than the depth of the second installation area (20), a water suction port (33) is provided at the bottom of the water pump (3), and the height of the lowest point of the guide slope (20a) is not lower than the height of the water suction port (33).

9. The cleaning machine according to claim 8, characterized in that: The lowest point of the diversion slope (20a) is higher than the height of the water suction port (33).

10. The cleaning machine according to any one of claims 2 to 7, characterized in that: The depths of the third installation area (30), the first installation area (10), and the second installation area (20) decrease sequentially, and the second installation area (20) is smoothly connected to the first installation area (10) and the third installation area (30) via a transition slope (100).

11. The cleaning machine according to any one of claims 1 to 7, 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.

12. The cleaning machine according to claim 11, 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.

13. The cleaning machine according to claim 11, 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).

14. The cleaning machine according to claim 11, 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).

15. The cleaning machine according to claim 11, 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).

16. The cleaning machine according to claim 15, characterized in that: 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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