Water pump for cleaning machine and cleaning machine

Abstract

The utility model relates to a water pump for a cleaning machine and the cleaning machine, the bottom of the water pump is provided with a water inlet and a water retaining rib used for gathering incoming water to the water inlet, and the water retaining rib is arranged on one side of the water inlet in a surrounding mode and arranged in a semi-surrounding mode. The bottom of the water pump is further provided with a water retaining ring located in a semi-surrounding area of the water retaining ribs, and the water retaining ring is arranged corresponding to incoming water and provided with filter screen holes capable of filtering the incoming water. By the adoption of the structure, the water retaining ring capable of filtering water sucked into the water pump is arranged in the semi-surrounding area of the water retaining rib, pollutants and bubbles which are prone to causing bubbles in a washing medium can be intercepted, the phenomenon of air suction in the water pump is reduced, the operation efficiency of the water pump is improved, the cleaning lift is improved, and then the cleaning effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, specifically to a water pump and a washing machine for cleaning tableware, fruits and vegetables. Background Technology

[0002] Dishwashers are now widely used in home kitchens. Dishwashers typically have spray arms for spraying water jets, and a recessed water return area at the bottom of the unit. The top of the water return area is covered by a filter plate. A water pump pumps the water from the water return area to the spray arms above the filter plate, thus achieving the circulation and spraying of washing water.

[0003] Using an open-type water pump to draw water from the spray arm can significantly shorten the return water path, improve return water efficiency, and facilitate pump maintenance. Publication CN115573915A, titled "An Open-Type Water Pump and Cleaning Machine" (application number: CN202211216848.9), discloses a structure including a pump casing, a cover plate, and an impeller. The pump casing has a suction port at the bottom, a first outlet at the top, and a second outlet on the side. The cover plate is located within the pump casing and divides the inner cavity into an upper cavity and a lower cavity. The lower cavity has two opposing flow channels arranged circumferentially for bidirectional water flow. The second outlet is located on the side of the lower cavity and communicates with the first flow channel. The cover plate has a notch on its edge for the second flow channel to communicate with the upper cavity. The first outlet is also connected to the upper cavity. This open-type water pump, with its suction port at the bottom of the pump casing, significantly reduces the suction height, effectively preventing air from being drawn in. However, since the water pump's suction port is a ring suction type, and the water pump is located next to the slag collection basket and heating element, the ring suction type can easily compete with the slag collection basket side for return water volume, which affects the slag collection effect and return water efficiency.

[0004] To address the aforementioned issues, the applicant's patent ZL 202420074057.5, "Water Pump, Water Flow System and Cleaning Machine for Cleaning Machine," provides a water pump structure that can constrain the direction of water intake to improve return water efficiency and slag collection effect. However, when the items being cleaned contain easily foaming substances such as minced meat or spinach, the foamed washing medium quickly enters the water pump, which can easily cause cavitation inside the water pump, resulting in fluctuations in the water pump flow rate. Consequently, the output head and cleaning impact force are weakened, affecting the cleaning effect. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a water pump for a cleaning machine that can improve the slag collection effect and avoid the problem of air suction, thereby improving the cleaning effect, in light of the current state of the technology.

[0006] The second technical problem to be solved by this utility model is to provide a cleaning machine that uses the above-mentioned water pump, in view of the current state of the prior art.

[0007] The technical solution adopted by this utility model to solve at least one of the above-mentioned technical problems is as follows:

[0008] A water pump for a cleaning machine, wherein the bottom of the water pump is provided with a water inlet and a water baffle for gathering incoming water towards the water inlet, the water baffle is arranged around one side of the water inlet in a semi-encircling manner, and the bottom of the water pump is also provided with a water baffle ring located within the semi-encircling area of ​​the water baffle, the water baffle ring is arranged corresponding to the incoming water and has filter mesh openings for filtering the incoming water.

[0009] With the above structure, a water-blocking ring is set within the semi-encircling area of ​​the water-blocking rib to filter the water sucked into the water pump. This can intercept contaminants and air bubbles in the washing medium that are prone to causing air bubbles, reduce the occurrence of air suction inside the water pump, improve the operating efficiency of the water pump, increase the cleaning head, and thus improve the cleaning effect.

[0010] Preferably, viewed from above, the water-blocking rib has a V-shaped structure, with the closed end of the V-shape surrounding a portion of the inlet edge, and the open end of the V-shape located at the edge of the pump's bottom wall. The water-blocking ring and the closed end of the V-shape are arranged opposite each other with respect to the inlet. This structure effectively intercepts pollutants drawn into the water by concentrating the suction power circumferentially.

[0011] Preferably, the water-blocking ring and the closed end of the V-shaped structure are connected end to end to form a closed-loop structure that completely surrounds the water inlet. This structure further enhances the interception of pollutants drawn into the water.

[0012] In this invention, the water-retaining rib and the bottom wall of the water pump enclose a water suction channel. The water-retaining rib includes a middle section, a first side section, and a second side section that are connected to each other. The middle section is arc-shaped and surrounds the edge of the water inlet, opposite to the opening of the water suction channel. The first side section extends obliquely from the first end of the middle section towards the first edge of the opening of the water suction channel, and the second side section extends obliquely from the second end of the middle section towards the second edge of the opening of the water suction channel. The "opening of the water suction channel" refers to the inlet of the water suction channel enclosed between the ends of the first and second side sections. This structure can directionally guide the water flow. For example, the first and second side sections can be used to direct the water flow towards the edge of the return water area of ​​the corresponding cleaning machine, the outer edge of the heating element, and the outer edge of the slag collection basket, thereby improving the corresponding heating and slag collection functions and increasing the return water efficiency.

[0013] Preferably, the water-retaining rib has a notch for water flow to connect the two sides of the rib. This structure allows accumulated water and residue on the non-inlet side isolated by the water-retaining rib to be drained away, preventing long-term accumulation and bacterial growth.

[0014] Preferably, the water-retaining ring is provided with a plurality of water-dividing ribs arranged at intervals along its circumference, which pass through the water-retaining ring and extend radially thereafter. This structure can rectify the water drawn into the water pump to reduce water flow energy loss.

[0015] Preferably, the pore size of the filter mesh is (0.9–1.5) mm. More preferably, the pore size of the filter mesh is (1–1.2) mm. This pore size allows for better interception of air bubbles and fine particles that are prone to bubbling.

[0016] Preferably, the height of the water-blocking rib is 5-12mm. This structure can constrain the water suction height, controlling it within a reasonable range, ensuring the return water effect while preventing air from being sucked in. In this invention, the above-mentioned water suction height, in conjunction with the filter structure on the water-blocking ring, prevents excessively fast return water flow and the resulting air suction problem, while controlling the water pump mounting surface and reducing water consumption.

[0017] A cleaning machine includes a water cup, a slag collection basket, and a heating element. The water cup is provided with a recessed return water area. The slag collection basket and the heating element are located in the return water area. The water pump is also provided in the return water area. The water baffle restricts the direction of incoming water corresponding to the slag collection basket and / or the heating element.

[0018] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a water-blocking rib on the outer wall of the water pump to gather water towards the inlet. The water-blocking rib is arranged around one side of the inlet in a semi-encircling manner. This structure makes the water pump no longer a ring-suction pump, but can purposefully align the suction direction with the slag collection basket and heating element. This not only reduces the energy loss caused by water flow collision and improves the return water effect, but also increases the suction force on the side of the slag collection basket and heating element, thereby increasing the return water flow at that point and improving the slag collection and heating effects. At the same time, a water-blocking ring is set within the semi-encircling area of ​​the water-blocking rib to filter the water sucked into the water pump. This can intercept contaminants and air bubbles in the washing medium that are prone to causing air bubbles, reduce the occurrence of air suction inside the water pump, improve the operating efficiency of the water pump, increase the cleaning head, and thus improve the cleaning effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the water pump structure according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the cleaning machine according to an embodiment of the present invention;

[0021] Figure 3 This is a diagram showing the fit between the water-blocking rib, the water-blocking ring, and the water cup in an embodiment of this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-3 As shown, in this embodiment, the water pump 1 used for the cleaning machine is provided with a water inlet 11 and a water baffle 12 for gathering incoming water to the water inlet 11. The water baffle 12 surrounds one side of the water inlet 11 and is arranged in a semi-encircling manner with respect to the water inlet 11. The bottom of the water pump 1 is also provided with a water baffle ring 13 located within the semi-encircling area of ​​the water baffle 12. The water baffle ring 13 is arranged corresponding to the incoming water and has filter mesh holes 131 that can filter the incoming water.

[0024] In this embodiment, the water-blocking ring 13 and the water-blocking rib 12 are integrally formed.

[0025] With the above structure, a water-blocking ring 13 is set within the semi-encircling area of ​​the water-blocking rib 12 to filter the water sucked into the water pump 1. This can intercept contaminants and air bubbles in the washing medium that are prone to causing air bubbles, reduce the occurrence of air suction inside the water pump 1, improve the operating efficiency of the water pump 1, increase the cleaning head, and thus improve the cleaning effect.

[0026] From a top-down view, the water-blocking rib 12 has a V-shaped structure. The closed end of this V-shape surrounds a portion of the edge of the inlet 11, while the open end of the V-shape is located at the edge of the bottom wall of the pump 1. The water-blocking ring 13 and the closed end of the V-shape are arranged opposite to the inlet 11. This structure is used to effectively intercept pollutants in the water being drawn in, based on the concentrated suction power in the circumferential direction.

[0027] The water-blocking ring 13 connects end to end with the closed end of the V-shaped structure to form a closed-loop structure that completely surrounds the water inlet 11. This structure is used to further and more effectively intercept pollutants drawn into the water.

[0028] In this embodiment, a water-retaining rib 12 and the bottom wall of the water pump 1 enclose a water-suction channel 12a. The water-retaining rib 12 includes a middle section 123, a first side section 121, and a second side section 122 that are connected to each other. The middle section 123 is arc-shaped and surrounds the edge of the inlet 11, facing the opening of the water-suction channel 12a. The first side section 121 extends obliquely from the first end of the middle section 123 toward the first edge of the opening of the water-suction channel 12a, and the second side section 122 extends obliquely from the second end of the middle section 123 toward the second edge of the opening of the water-suction channel 12a. The "opening of the water-suction channel 12a" referred to here is the inlet of the water-suction channel 12a enclosed between the ends of the first side section 121 and the second side section 122. The above structure can guide the water flow in a specific direction. For example, the first side section 121 and the second side section 122 can be used to direct the water flow to the edge of the return water area of ​​the corresponding cleaning machine, the outer edge of the heating element 5 and the slag collection basket 4, so as to improve the corresponding heating and slag collection functions and improve the return water efficiency.

[0029] The water-blocking rib 12 has a notch 124 for water to flow between the two sides of the water-blocking rib 12. This structure allows the accumulated water and residue on the non-inlet 11 side isolated by the water-blocking rib 12 to be drained away, preventing long-term accumulation and bacterial growth.

[0030] The water baffle ring 13 is provided with a plurality of water-dividing ribs 132 arranged at intervals along its circumference. The water-dividing ribs 132 pass through the water baffle ring 13 and extend radially thereafter. This structure can rectify the water sucked into the water pump 1 to reduce water flow energy loss.

[0031] The pore size of the filter mesh 131 is (0.9~1.5) mm. Preferably, the pore size of the filter mesh 131 is (1~1.2) mm. This pore size allows for better interception of air bubbles and fine particles that are prone to air bubbles.

[0032] The height of the water-blocking rib 12 is 5-12mm. This structure can cooperate with the inner bottom wall of the return water area to constrain the water suction height, keeping it within a reasonable range. This ensures the return water effect while preventing air from being sucked in. In this embodiment, the above-mentioned water suction height, in conjunction with the filter structure on the water-blocking ring 13, prevents the return water flow rate from being too fast and thus causing air suction problems, while controlling the installation surface of the water pump 1 and reducing water consumption.

[0033] The cleaning machine in this embodiment includes a water cup 3, a slag collection basket 4, and a heating element 5. The water cup 3 is provided with a recessed return water area 31. The slag collection basket 4 and the heating element 5 are located in the return water area 31. The water pump 1 mentioned above is also provided in the return water area 31. The water baffle 12 restricts the incoming water direction corresponding to the slag collection basket 4 and / or the heating element 5.

[0034] Specifically, the water pump 1, the slag collection basket 4, and the heating element 5 are arranged in a triangular structure. The sidewalls of the return water area 31 surround the periphery of this triangular structure, and the outlet of the water pump 1 is offset and extends to the center of the triangular structure. The return water area 31 has three corners, each of which, together with its adjacent straight edge, encloses a first installation area 311, a second installation area 312, and a third installation area 313. The first installation area 311 is used to install the water pump 1, the second installation area 312 is used to install the heating element 5, and the third installation area 313 is used to install the slag collection basket 4. The two sides of the water-blocking rib 12 are close to the straight edge of the first installation area 311, and the middle of the water-blocking rib 12, together with the corner of the first installation area 311, encloses a relatively closed flow-limiting area 12b. The aforementioned flow-limiting zone 12b is designed to prevent return water from directly participating in the backflow from outside the water pump 1. Instead, part of the return water flows back through the slag collection basket 4, improving the slag collection effect, and part of the return water flows back through the heating element 5, improving the heating efficiency. A notch 124 is provided on the baffle rib 12 to allow water in the flow-limiting zone 12b to drain to the inlet 11 side. The notch 124 facilitates the discharge of accumulated water and residue in the flow-limiting zone 12b under the suction of the inlet 11, preventing long-term accumulation and bacterial growth.

[0035] In this embodiment, a baffle rib 12 is provided on the outer wall of the water pump 1 to gather water towards the inlet 11. The baffle rib 12 surrounds one side of the inlet 11 and is arranged in a semi-encircling manner. This structure allows the water pump 1 to no longer draw water in through a ring, but to purposefully align the water intake direction with the slag collection basket 4 and the heating element 5. This not only reduces the energy loss caused by water flow collision and improves the return water effect, but also increases the suction force on the side of the slag collection basket 4 and the heating element 5, thereby increasing the return water flow rate at that location and improving the slag collection and heating effects. At the same time, a baffle ring 13 is provided within the semi-encircling area of ​​the baffle rib 12 to filter the water drawn into the water pump 1. This can intercept contaminants and air bubbles in the washing medium that are prone to causing air bubbles, reduce the occurrence of air suction inside the water pump 1, improve the operating efficiency of the water pump 1, increase the cleaning head, and thus improve the cleaning effect.

[0036] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A water pump for a washing machine, the bottom of the water pump is provided with a water inlet (11) and a water baffle (12) for gathering water to the water inlet (11), the water baffle (12) is arranged around one side of the water inlet (11) and is arranged in a semi-encircling manner to the water inlet (11), characterized in that: The water pump bottom is further provided with a water blocking ring (13) located in the semi-enclosing area of the water blocking rib (12), which is arranged corresponding to the incoming water and is provided with filter mesh holes (131) capable of filtering the incoming water.

2. The water pump for a washing machine according to claim 1, characterized in that: From the top view, the water blocking rib (12) is in V-shaped structure, the closed end of which encloses the local edge of the water inlet (11), and the open end thereof is located at the edge of the water pump bottom wall, and the water blocking ring (13) is arranged opposite to the closed end of the V-shaped structure relative to the water inlet (11).

3. The water pump for a washing machine according to claim 2, characterized in that: The water blocking ring (13) and the closed end of the V-shaped structure are connected head to tail to form a closed loop structure capable of completely surrounding the water inlet (11).

4. The water pump for a cleaning machine according to claim 2, characterized in that: The water blocking rib (12) and the water pump bottom wall enclose a water suction flow channel (12a), and the water blocking rib (12) comprises a middle section (123), a first edge section (121) and a second edge section (122) connected to each other, the middle section (123) is in circular arc shape and surrounds the edge of the water inlet (11) opposite to the opening of the water suction flow channel (12a), the first edge section (121) extends obliquely from the first end of the middle section (123) to the first edge of the opening of the water suction flow channel (12a), and the second edge section (122) extends obliquely from the second end of the middle section (123) to the second edge of the opening of the water suction flow channel (12a).

5. The water pump for a washing machine according to claim 4, characterized in that: The middle section of the water blocking rib (12) is provided with a gap (124) for the water flow on both sides of the water blocking rib to communicate.

6. The water pump for a washing machine according to claim 2, characterized in that: The water blocking ring (13) is provided with a plurality of water distribution ribs (132) arranged at intervals in the circumferential direction thereof, which extend radially through the water blocking ring (13).

7. The water pump for a washing machine according to any one of claims 1 to 6, characterized in that: The filter mesh hole (131) has a pore size of (0.9-1.5) mm.

8. The water pump for a washing machine according to claim 7, characterized in that: The filter mesh hole (131) has a pore size of (1-1.2) mm.

9. The water pump for a washing machine according to any one of claims 1 to 6, characterized in that: The height of the water blocking rib (12) is 5-12 mm.

10. A cleaning machine comprising a water cup (3) provided with a recessed water return area (31), a slag collecting basket (4) and a heating element (5) arranged in the water return area (31), characterized in that: The water return area (31) is further provided with the water pump according to any one of claims 1-9, and the water blocking rib (12) restricts the direction of the incoming water corresponding to the slag collecting basket (4) and / or the heating element (5).

Images