A cleaning machine

Abstract

The present invention relates to a cleaning machine, comprising a box body and a slag collection basket, wherein a concave water return area is arranged at the bottom of the box body, the top of the water return area is covered with a filter plate, the lower part of the slag collection basket is accommodated in the water return area, the top of the slag collection basket is arranged with a slag collection port exposed from the filter plate, and further comprising a defoaming member, which can float up and down at the slag collection port, and the defoaming member automatically balances the water inlet area of ​​the slag collection basket under the action of buoyancy according to the flow rate of the return water. The present invention arranges a defoaming member at the entrance of the slag collection basket, eliminates bubbles at the source of the return water, and is beneficial to improving the water absorption stability of the water pump; the defoaming member of the present invention can move up and down due to buoyancy under the impact of the water flow, when the water flow rate is large, the buoyancy is large, and when the water flow rate is small, the buoyancy is small, thereby automatically balancing the water inlet area of ​​the slag collection basket according to the water flow rate, without affecting the water absorption efficiency, and improving the water absorption stability under the premise of maintaining a large water absorption power.

Description

Technical Field

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

[0002] For cleaning machines that use an open water flow system, since the return water area and the spray arm are connected in the washing chamber, the foam generated by the properties of detergents and cleaning objects can easily be directly absorbed into the spray arm through the return water area, affecting the jet height and pressure, and thus affecting the cleaning effect.

[0003] In order to solve the above problems, the applicant's prior patent ZL202122778065.7 "A cleaning machine with a flow stabilization function" discloses a structure, which is provided with a concave cavity located next to the water pumping mechanism at the bottom of the return water area, and a drainage outlet is provided at the bottom of the concave cavity. A slag collecting basket is provided in the concave cavity, and a first water inlet corresponding to the concave cavity and the slag collecting basket is provided on the side of the water pumping mechanism. A flow stabilization component is provided at the first water inlet, which can defoam and filter the inhaled water.

[0004] The above structure sets a flow stabilizing component at the water inlet of the water pump to defoam and filter the incoming water, thereby improving the water absorption stability and further improving the power stability of the water pumping mechanism. However, the setting of the flow stabilizing component affects the water absorption power to a certain extent, resulting in a certain impact on the water pumping efficiency and jet head. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a cleaning machine which can automatically adapt the water absorption area according to the return water volume and perform defoaming treatment so as to improve the water absorption stability under the premise of maintaining a large water absorption power in view of the current status of the prior art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A cleaning machine comprises a box body and a slag collecting basket, wherein a concave water return area is arranged at the bottom of the box body, a filter plate is covered on the top of the water return area, a lower part of the slag collecting basket is accommodated in the water return area, a slag collecting port exposed from the filter plate is arranged on the top of the slag collecting basket, and a defoaming member for defoaming water flowing into the water return area through the slag collecting port is further included, the defoaming member can float up and down at the slag collecting port, and the defoaming member automatically balances the water inlet area of ​​the slag collecting basket under the action of buoyancy according to the flow rate of the return water.

[0008] Preferably, the slag collecting port is opened on the side wall of the top of the slag collecting basket, and the slag collecting basket is provided with a guide sleeve that passes through from top to bottom, and the top edge of the guide sleeve extends radially outward to the bottom of the slag collecting port to form a guide top plate, and the lower part of the defoaming member passes through the upper port of the guide sleeve and is inserted in the guide sleeve, and the upper part of the defoaming member automatically adjusts the distance between its lower surface and the guide top plate as it floats up and down. The above structure is adopted to facilitate the use of water flowing from top to bottom through the slag collecting port and the guide sleeve to the return water area to provide buoyancy for the defoaming member. When the water flow rate is large and the water level is high, the floating displacement of the defoaming member is large, and when the water flow rate is small and the water level is low, the floating displacement of the defoaming member is small, so that the distance between the lower surface of the upper part of the defoaming member and the guide top plate is automatically adjusted according to the water flow rate. The height of the distance restricts the water inlet and outlet area. Under the premise of not affecting the water absorption efficiency, the defoaming member is used to squeeze the bubbles in the water flow at the source of the return water, thereby improving the water absorption stability.

[0009] Preferably, the defoaming member comprises the upper part and the lower part, the diameter of the upper part is larger than the diameter of the upper port of the guide sleeve and the interior is hollow to form a floating cavity, and the lower part can be inserted into the guide sleeve so as to move up and down.

[0010] Preferably, the lower part includes a plurality of guide ribs extending downward from the lower surface of the upper part, and a cutting portion capable of puncturing bubbles is provided on the outer peripheral wall of the guide ribs. The defoaming process in the present invention is divided into two stages, the first stage is: utilizing the up and down floating of the defoaming part to constrain the water absorption spacing, and the water absorption spacing can squeeze large bubbles and eliminate large bubbles; the second stage is: the water flows downward through the defoaming part, and the smaller bubbles carried therein are punctured by the above-mentioned cutting portion to eliminate small bubbles; and the cutting portion used for defoaming in the second stage floats up and down with the defoaming part, which is conducive to defoaming in a larger range to improve the defoaming effect.

[0011] Preferably, the bottom of the guide rib is connected with a limiting ring arranged in the circumferential direction, and correspondingly, the inner wall surface of the guide sleeve is provided with a first limiting convex card and a second limiting convex card arranged in an upper and lower interval, the first limiting convex card is used to cooperate with the top of the limiting ring to constrain the defoaming part to move upward to the limit position, and the second limiting convex card is used to cooperate with the bottom of the limiting ring to constrain the defoaming part to move downward to the limit position, and at the limit position of the defoaming part moving downward, a gap is maintained between the lower surface of the defoaming part and the upper surface of the guide top plate. The above structure facilitates constraining the position of the defoaming part, thereby improving its flow stabilization effect.

[0012] Further preferably, the first limiting convex card and the second limiting convex card are relatively staggered in the circumferential direction, and at least part of the first limiting convex card and the second limiting convex card is formed into a triangular structure with the tip facing upward. This structure can work together with the above-mentioned cutting part, the cutting part floats up and down for cutting, and the triangular structure is fixed in position for cutting, thereby eliminating the defoaming dead angle and further improving the defoaming effect.

[0013] In order to improve the slag collection and water return effects, the slag collection port is located above the filter plate, the bottom edge of the slag collection port is connected to the upper surface of the filter plate, and the outer edge of the guide top plate is connected to the bottom edge of the slag collection port. The upper surface of the guide top plate gradually slopes downward from the outer edge to form a guide slope.

[0014] In the present invention, an open water pump is provided in the water return area, the open water pump is provided with a water suction port connected to the water return area, the top of the open water pump is provided with a water outlet passing through the filter plate and located above the filter plate, and a spray arm connected to the water outlet of the water pump is provided on the filter plate. Preferably, a water suction port is provided at the bottom of the open water pump, and a baffle extending from the outer periphery of the water suction port to the side of the slag collection basket is provided on the side wall of the open water pump to form a single concentrated water suction channel; or, the water suction port is provided on the side of the open water pump, and the water suction port is arranged close to the side of the slag collection basket. The above structure is adopted to improve the water return efficiency.

[0015] Compared with the prior art, the advantages of the present invention are: a defoaming component is arranged at the inlet of the slag collecting basket to eliminate bubbles at the source of return water, which is beneficial to improving the water absorption stability of the water pump; the defoaming component of the present invention can move up and down due to buoyancy under the impact of water flow, when the water flow rate is large, the buoyancy is large, and when the water flow rate is small, the buoyancy is small, thereby automatically balancing the water inlet area of ​​the slag collecting basket according to the water flow rate, without affecting the water absorption efficiency, and improving the water absorption stability while maintaining a large water absorption power. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Cross-sectional view (lower limit position of defoaming part);

[0018] Figure 3 for Figure 1 Cross-sectional view (upper limit position of defoaming part);

[0019] Figure 4 A schematic diagram of the structure of a defoaming component in an embodiment of the present invention;

[0020] Figure 5Schematic diagram of a partial structure of a slag collecting basket in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 5 As shown, the cleaning machine of this embodiment includes a box body 1 and a slag collecting basket 2. A concave return water area 11 is provided at the bottom of the box body 1. The top of the return water area 1 is covered with a filter plate 12. The lower part of the slag collecting basket 2 is accommodated in the return water area 11. The top of the slag collecting basket 2 is provided with a slag collecting port 21 exposed from the filter plate 12.

[0023] This embodiment also includes a defoaming member 3 for defoaming the water flow entering the return water area 11 through the slag collecting port 21. The defoaming member 3 can float up and down at the slag collecting port 21. The defoaming member 3 automatically balances the water inlet area of ​​the slag collecting basket 2 under the action of buoyancy according to the flow rate of the return water.

[0024] Specifically, the slag collecting port 21 is opened on the side wall at the top of the slag collecting basket 2. A guide sleeve 22 is provided in the slag collecting basket 1, which is passed through from top to bottom. The top edge of the guide sleeve 22 extends radially outward to the bottom of the slag collecting port 21 to form a guide top plate 23. The slag collecting basket 2 accommodated in the return water area 11 is surrounded by a filter screen on its periphery, and a drain port 13 corresponding to the bottom of the slag collecting basket 2 is provided at the bottom of the return water area 11. The slag collecting port 21 is located above the filter plate 12, and the bottom edge of the slag collecting port 21 is connected to the upper surface of the filter plate 12, and the outer edge of the guide top plate 23 is connected to the bottom edge of the slag collecting port 21. The upper surface of the guide top plate 23 gradually tilts downward from the outer edge inward to form a guide slope.

[0025] The defoaming member 3 of this embodiment includes an upper portion 31 and a lower portion 32. The diameter of the upper portion 31 is larger than the diameter of the upper port of the guide sleeve 22 and the inner portion is hollow to form a floating cavity 311. The lower portion 32 can be inserted into the guide sleeve 22 so as to move up and down. The lower portion 32 of the defoaming member 3 passes through the upper port of the guide sleeve 22 and is inserted into the guide sleeve 22. The upper portion 31 of the defoaming member 3 automatically adjusts the distance h between its lower surface and the guide top plate 23 as it floats up and down. By adopting the above structure, it is convenient to utilize the water flow flowing from top to bottom through the slag collecting port 21 and the guide sleeve 22 to the return water area 11 to provide buoyancy for the defoaming component 3. When the water flow rate is large and the water level is high, the floating displacement of the defoaming component 3 is large. When the water flow rate is small and the water level is low, the floating displacement of the defoaming component 3 is small. Therefore, the distance h between the lower surface of the upper part 31 of the defoaming component 3 and the guide top plate 23 is automatically adjusted according to the water flow rate. The distance h highly constrains the water inlet and outlet area. Under the premise of not affecting the water absorption efficiency, the defoaming component 3 is used to squeeze the bubbles in the water flow at the source of the return water, thereby improving the water absorption stability.

[0026] The lower part 32 of the defoaming member 3 includes a plurality of guide ribs 321 extending downward from the lower surface of the upper part. The outer peripheral wall of the guide rib 31 is provided with a cutting portion 322 capable of puncturing bubbles. The cutting portion 322 can have a variety of shapes, such as a triangle, a diamond, etc., and preferably the tip faces upward. The defoaming process in this embodiment is divided into two stages. The first stage is: utilizing the up and down floating of the defoaming member 3 to constrain the water absorption spacing h, and the water absorption spacing h can squeeze large bubbles and eliminate large bubbles; the second stage is: the water flows downward through the defoaming member 3, and the smaller bubbles carried therein are punctured by the above-mentioned cutting portion 322 to eliminate small bubbles; and the cutting portion 322 used for defoaming in the second stage floats up and down with the defoaming member 3, which is conducive to defoaming in a larger range to improve the defoaming effect.

[0027] The bottom of the guide rib 321 of this embodiment is connected with a limiting ring 323 arranged in the circumferential direction. Correspondingly, the inner wall surface of the guide sleeve 22 is provided with a first limiting convex card 221 and a second limiting convex card 222 arranged in an upper and lower interval. The first limiting convex card 221 is used to cooperate with the top of the limiting ring 323 to constrain the upward limit position of the defoaming member 3, and the second limiting convex card 222 is used to cooperate with the bottom of the limiting ring 323 to constrain the downward limit position of the defoaming member 3. At the downward limit position of the defoaming member 3, a gap is maintained between the lower surface of the defoaming member 3 and the upper surface of the guide top plate 23. The above structure facilitates constraining the position of the defoaming member 3, thereby improving its flow stabilization effect.

[0028] The first limiting convex card 221 and the second limiting convex card 222 are relatively staggered in the circumferential direction, and the first limiting convex card 221 and the second limiting convex card 222 are formed into a triangular structure with the tip facing upward. This structure can work together with the cutting part 322, the cutting part 322 floats up and down for cutting, and the triangular structure is fixed in position for cutting, eliminating the defoaming dead angle and further improving the defoaming effect.

[0029] In this embodiment, an open water pump is provided in the water return area 11, and the open water pump is provided with a water suction port connected to the water return area 11, and a water outlet 10 is provided on the top of the open water pump, which passes through the filter plate 12 and is located on the filter plate 12, and a spray arm connected to the water outlet 10 of the water pump is provided on the filter plate 12. A water suction port is provided at the bottom of the open water pump, and a baffle extending from the outer periphery of the water suction port to the side of the slag collection basket 2 to form a single concentrated water suction channel is provided on the side wall of the open water pump; or, the water suction port is provided on the side of the open water pump, and the water suction port is arranged close to the side of the slag collection basket 2. The above structure is adopted to improve the water return efficiency.

[0030] In this embodiment, a defoaming member 3 is provided at the entrance of the slag collecting basket 2 to eliminate bubbles at the source of the return water, which is beneficial to improving the water absorption stability of the water pump; the defoaming member 3 can move up and down due to buoyancy under the impact of the water flow. When the water flow rate is large, the buoyancy is large, and when the water flow rate is small, the buoyancy is small, thereby automatically balancing the water inlet area of ​​the slag collecting basket 2 according to the water flow rate, without affecting the water absorption efficiency, and improving the water absorption stability while maintaining a large water absorption power.

[0031] 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) and a slag collecting basket (2), wherein a concave water return area (11) is arranged at the bottom of the box (1), a filter plate (12) is covered on the top of the water return area (11), a lower part of the slag collecting basket (2) is accommodated in the water return area (11), and a slag collecting opening (21) exposed from the filter plate (12) is arranged on the top of the slag collecting basket (2), characterized in that: It also includes a defoaming member (3) for defoaming water flowing into the return water area (11) through the slag collecting port (21); the defoaming member (3) is disposed at the slag collecting port (21) in a manner that allows it to float up and down; the defoaming member (3) automatically balances the water inlet area of ​​the slag collecting basket (2) under the action of buoyancy depending on the flow rate of the return water; The slag collecting port (21) is opened on the side wall of the top of the slag collecting basket (2); a guide sleeve (22) is provided in the slag collecting basket (2) and is passed through from top to bottom; the top edge of the guide sleeve (22) extends radially outward to the bottom of the slag collecting port (21) to form a guide top plate (23); the lower part of the defoaming member (3) passes through the upper port of the guide sleeve (22) and is inserted into the guide sleeve (22); the upper part of the defoaming member (3) automatically adjusts the distance (h) between its lower surface and the guide top plate (23) as it floats up and down; The defoaming member (3) comprises an upper portion (31) and a lower portion (32); the diameter of the upper portion (31) is greater than the diameter of the upper port of the guide sleeve (22) and the interior is hollow to form a floating cavity (311); the lower portion (32) is inserted into the guide sleeve (22) so as to be movable up and down; The lower part (32) includes a plurality of guide ribs (321) extending downward from the lower surface of the upper part (31), and a cutting portion (322) capable of puncturing bubbles is provided on the outer peripheral wall of the guide rib (321); The bottom of the guide rib (321) is connected to a limiting ring (323) arranged in the circumferential direction. Correspondingly, the inner wall surface of the guide sleeve (22) is provided with a first limiting convex card (221) and a second limiting convex card (222) arranged in an upper and lower interval. The first limiting convex card (221) is used to cooperate with the top of the limiting ring (323) to constrain the defoaming part (3) to an extreme upward position. The second limiting convex card (222) is used to cooperate with the bottom of the limiting ring (323) to constrain the defoaming part (3) to an extreme downward position. At the extreme downward position of the defoaming part (3), a spacing (h) is maintained between the lower surface of the defoaming part (3) and the upper surface of the guide top plate (23); The first limiting convex card (221) and the second limiting convex card (222) are relatively staggered in the circumferential direction, and at least part of the first limiting convex card (221) and the second limiting convex card (222) are formed into a triangular structure with the tip facing upward.

2. The cleaning machine according to claim 1, characterized in that: The slag collecting port (21) is located above the filter plate (12), the bottom edge of the slag collecting port (21) is connected to the upper surface of the filter plate (12), and the outer edge of the guide top plate (23) is connected to the bottom edge of the slag collecting port (21).

3. The cleaning machine according to claim 2, characterized in that: The upper surface of the guide top plate (23) gradually slopes downward from the outer edge inward to form a guide slope.

4. The cleaning machine according to any one of claims 1 to 3, characterized in that: An open water pump is arranged in the water return area (11), the open water pump is provided with a water suction port connected to the water return area (11), a water outlet (10) is arranged on the top of the open water pump and passes through the filter plate (12) and is located above the filter plate (12), and a spray arm connected to the water outlet (10) of the water pump is arranged above the filter plate (12).

5. The cleaning machine according to claim 4, characterized in that: The bottom of the open water pump is provided with a water suction port, and the side wall of the open water pump is provided with a baffle extending from the outer periphery of the water suction port to the side of the slag collecting basket (2) to form a single concentrated water suction channel; or, The water suction port is opened on the side of the open water pump, and the water suction port is arranged close to the side of the slag collecting basket (2).

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