CN218542693U - Impeller structure and water pump and cleaning machine with same - Google Patents

Abstract

The utility model relates to an impeller structure and applied water pump, cleaning machine that has this impeller structure, including upper cover plate, lower apron and blade, form the delivery port that is linked together through water guide runner and water inlet between upper cover plate edge and the lower apron edge, from overlooking the angle, the blade extends along anticlockwise spiral from the inner to the outer end, the projection of tip in the blade on the horizontal plane is located within the water inlet, and the lower limb of tip is formed with the arc structure that arches to the water inlet direction in this. The utility model provides an impeller structure and water pump, cleaning machine for open water pump, impeller structure are arranged in open water pump, with stator structure cooperation, only utilize an impeller, just can satisfy two way water supply demands simultaneously to, all keep two way water supplies to have great discharge and jet lift after the reposition of redundant personnel, thereby satisfied on the basis of simplifying water pump overall structure, improved pump water effect and cleaning performance.

Description

Impeller structure and water pump and cleaning machine using same

Technical Field

The utility model relates to a dish washer technical field specifically indicates an impeller structure and applied water pump, the cleaning machine that has this impeller structure.

Background

With the improvement of living standard of people, the dish washing machine is gradually becoming a common device in the kitchen. The impeller structure is an indispensable component of a water pumping mechanism in a dish washing machine, and how the performance of the impeller structure is directly related to the quality of a washing effect.

The applicant's prior patent ZL 202023352186.7 "an impeller structure and a dual pump system, cleaning machine" discloses a structure, the impeller structure has a shaft located at the center and a plurality of blades circumferentially spaced on the outer peripheral wall of the shaft, the shaft has a front cover plate and a rear cover plate axially spaced, the blades are disposed between the front cover plate and the rear cover plate, and the central portion of the front cover plate is provided with a water inlet. The impeller structure is mainly used in a double-pump system developed by the applicant, is arranged in a closed pump shell, provides power for upper-layer spraying water, and is beneficial to improving the lift and water flow of the upper-layer spraying water.

When above-mentioned impeller structure is arranged in closed pump case, mainly used carries rivers, provides power in circumference, and to the water pump that has existing circumference in a pump case and carry rivers demand, have the upwards reposition of redundant personnel discharge demand of circumference again, the requirement to the flow is higher, above-mentioned current impeller structure is difficult to satisfy the pump water demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem to provide an impeller structure that can effectively improve thereby discharge satisfies the pump water demand, improves the cleaning performance to prior art's current situation.

The utility model aims to solve the second technical problem to provide a water pump that uses above-mentioned impeller structure to the current situation of prior art, this water pump can utilize one to draw the water impeller and satisfy two way water supply demands and keep great discharge and then improve the cleaning performance simultaneously.

The utility model discloses the third technical problem that will solve is to prior art's current situation, provides an use cleaning machine that has above-mentioned water pump.

The utility model provides a technical scheme that at least one above-mentioned technical problem adopted does:

an impeller structure comprises an upper cover plate, a lower cover plate and blades, wherein the upper cover plate and the lower cover plate are arranged at intervals, the blades are arranged between the upper cover plate and the lower cover plate at intervals, a water inlet is formed in the lower cover plate, a water guide flow channel is enclosed between every two adjacent blades, a water outlet communicated with the water inlet through the water guide flow channel is formed between the edge of the upper cover plate and the edge of the lower cover plate, the blades extend spirally from the inner end to the outer end in the anticlockwise direction from the overlooking angle, the projection of the inner end part of each blade on the horizontal plane is positioned in the water inlet, and an arc-shaped structure arched towards the water inlet direction is formed at the lower edge of the inner end part.

Preferably, the water inlet is arranged at the central part of the lower cover plate, and at least part of the lower cover plate extends from top to bottom along the radial direction from outside to inside to form a downward-probing water inlet. The structure can also meet the requirement of high-efficiency water absorption at a very low water level, increases the water absorption power, avoids bubbles and the like from being absorbed, and is favorable for improving the water absorption effect.

Preferably, the lower cover plate is gradually inclined downwards from the outer edge to the inner water inlet along the radial direction to form a first flow guiding curved surface, the first flow guiding curved surface comprises a gentle portion located at the periphery and a curved portion located at the inner side, and the water inlet is located at the lower end of the curved portion. By adopting the optimized structure, the water absorption effect is further improved.

Preferably, the upper edge of the inner end portion of the blade is connected to the junction of the gentle portion and the curved portion. The utility model discloses a blade structure makes its rotational speed surplus can satisfy the operation of motor full load, improves the effect of absorbing water.

Preferably, the upper cover plate is provided with a shaft extending downward toward the water inlet, and the lower end of the shaft passes through the water inlet and is positioned below the water inlet. This structure combines the utility model discloses a formula water inlet structure is visited down, is favorable to improving the power that absorbs water.

Preferably, the upper cover plate is inclined from outside to inside along the radial direction and from top to bottom to form a second flow guiding curved surface corresponding to the first flow guiding curved surface, the second flow guiding curved surface is smoothly connected with the outer peripheral wall of the shaft, a flow space is enclosed between the first flow guiding curved surface and the second flow guiding curved surface, and the blades are spirally arranged in the flow space. The structure is beneficial to reducing the energy loss of the fluid, improving the water drawing power and increasing the water pressure and flow.

Preferably, a central portion of the top of the upper cover plate is formed with a recessed region in which a back vane is provided to extend radially from the outer peripheral wall of the shaft, and a top edge of the back vane is substantially flush with an outer edge of the top of the upper cover plate. The structure can balance the axial force and reduce the noise.

Preferably, the inner end of each blade is located on a circle concentrically arranged with the center of the water inlet, the radius of the corresponding circle is R1, and the diameter of the water inlet R2, R1= (0.6-0.85) R2. The utility model discloses an impeller structure can compromise high-efficient and fall and make an uproar, avoids the higher interval of noise, improves the power that absorbs water.

A water pump comprises a pump shell, wherein a water suction port is formed in the bottom of the pump shell, a first water outlet is formed in the top of the pump shell, and a second water outlet is formed in the side part of the pump shell; further comprising:

the guide vane is arranged in the pump shell and divides an inner cavity of the pump shell into an upper cavity and a lower cavity, the first water outlet is communicated with the upper cavity, the second water outlet is communicated with the lower cavity, and the edge of the guide vane is provided with a water guide port for supplying water from the lower cavity into the upper cavity; and

the impeller structure can be rotatably arranged in the lower cavity and is used for sucking water below the pump shell into the lower cavity through the water suction port, and pumping the water in the lower cavity into the upper cavity through the water guide port, further pumping out the water through the first water outlet and directly pumping out the water through the second water outlet; at least part of the lower cover plate extends from top to bottom along the radial direction from outside to inside to form a downward-probing water inlet, the water inlet is positioned below the water suction port, and the water suction port is arranged corresponding to the peripheral wall of the lower cover plate on the periphery of the water inlet.

Preferably, the guide vane includes the apron and around apron edge downwardly extending's curb plate, the curb plate forms open loop structure and the opening part corresponds the second delivery port and arranges in apron circumference, the mouth of leading water is seted up on the curb plate and is upwards run through the apron. By adopting the structure, the guide vane does not move, but the cover plate and the side plate of the guide vane are matched with the inner wall of the pump shell to jointly enclose the lower cavity with the functions of water absorption and water pressing, in the rotating process of the impeller, part of water flow is output through the side part of the pump shell through the second water outlet along with the rotation of the impeller, and the other part of water flow passes through the water guide port on the side plate to upwards enter the upper cavity and upwards be conveyed through the first water outlet at the top of the pump shell.

The utility model provides a cleaning machine, includes box, first spray arm and second spray arm, still includes above-mentioned rivers system, the bottom half is provided with recessed return water region, and the top in this return water region covers there is the filter, the return water region is located to the pump case, the clearance of absorbing water has between the water sucking mouth of pump case bottom and the return water region bottom, the first delivery port at pump case top is located on the filter and is linked together with the water inlet of first spray arm, the second spray arm is located upper portion and is linked together through the second delivery port of water supply pipe and pump case in the box.

Compared with the prior art, the utility model has the advantages of: the utility model provides an impeller structure and water pump, cleaning machine for open water pump, impeller structure are arranged in open water pump, with stator structure cooperation, only utilize an impeller, just can satisfy two way water supply demands simultaneously to, all keep two way water supplies after the reposition of redundant personnel to have great discharge and jet lift, thereby satisfied on the basis of simplifying water pump overall structure, improved pump water effect and cleaning performance.

Drawings

Fig. 1 is a schematic structural view of an impeller structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is another cross-sectional view of FIG. 1;

FIG. 5 is a side view of FIG. 1;

FIG. 6 is a bottom view of FIG. 1;

fig. 7 is a schematic structural diagram of a water pump according to an embodiment of the present invention;

fig. 8 is a schematic diagram (longitudinal section) of the internal structure of the water pump according to the embodiment of the present invention;

fig. 9 is an internal structural schematic view (cross section) of the water pump in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, the impeller structure of this embodiment includes an upper cover plate 1, a lower cover plate 2 and a plurality of blades 3, the upper cover plate 1 and the lower cover plate 2 are arranged at an upper and a lower interval, the plurality of blades 3 are arranged between the upper cover plate 1 and the lower cover plate 2 at an interval, a water inlet 21 is opened on the lower cover plate 2, a water guiding channel 31 is enclosed between two adjacent blades 3, and a water outlet 32 communicated with the water inlet 21 through the water guiding channel 31 is formed between the edge of the upper cover plate 1 and the edge of the lower cover plate 2. The vane 3 extends spirally from the inner end to the outer end in the counterclockwise direction in a top view, the projection of the inner end portion 33 of the vane 3 on the horizontal plane is positioned inside the water inlet 21, and the lower edge of the inner end portion 33 is formed with an arc-shaped structure 331 which is arched in the direction of the water inlet 21.

The water inlet 21 is arranged at the central part of the lower cover plate 2, and at least part of the lower cover plate 2 extends from outside to inside along the radial direction and from top to bottom to form a downward-probing water inlet 21. The structure can also meet the requirement of high-efficiency water absorption at a very low water level, increases the water absorption power, avoids bubbles and the like from being absorbed, and is favorable for improving the water absorption effect.

The inner end of each blade 3 is located on a circle concentrically arranged with the center of the water inlet 21, the radius of the corresponding circle is R1, and the diameter R2 of the water inlet 21, R1= (0.6-0.85) R2. The impeller structure of this embodiment can compromise high-efficient and fall and make an uproar, avoids the higher interval of noise, improves the power that absorbs water.

In the present embodiment, the lower cover plate 2 is gradually inclined downward from the outer edge to the inner water inlet 21 to form a first flow guiding curved surface 20, the first flow guiding curved surface 20 includes a gentle portion 201 at the outer periphery and a curved portion 202 at the inner side, and the water inlet 21 is located at the lower end of the curved portion 202. By adopting the optimized structure, the water absorption effect is further improved. The upper edge of the inner end portion 33 of the blade 3 is connected to the junction of the gentle portion 201 and the curved portion 202. The blade structure of this embodiment makes its rotational speed surplus can satisfy the motor full load operation, improves the effect of absorbing water.

The upper cover plate 1 is provided with a shaft 11 extending downward toward the water inlet 21, and a lower end of the shaft 11 passes through the water inlet 21 to be positioned below the water inlet 21. This structure combines the formula water inlet 21 structure of exploring down of this embodiment, is favorable to improving the power that absorbs water. The upper cover plate 1 is inclined from outside to inside along the radial direction and from top to bottom to form a second flow guiding curved surface 10 corresponding to the first flow guiding curved surface 20, the second flow guiding curved surface 10 is smoothly connected with the outer peripheral wall of the shaft 11, a flow space 100 is enclosed between the first flow guiding curved surface 20 and the second flow guiding curved surface 10, and the blades 3 are spirally arranged in the flow space 100. The structure is beneficial to reducing the energy loss of the fluid, improving the water drawing power and increasing the water pressure and flow.

The central part of the top of the upper cover plate 1 is formed with a recessed area 12, and a back vane 13 radially extending from the outer peripheral wall of the shaft is disposed in the recessed area 12, and the top edge of the back vane 13 is substantially flush with the outer edge of the top of the upper cover plate 1. The structure can balance the axial force and reduce the noise.

The water pump of the present embodiment is an open water pump, and as shown in fig. 7, 8, and 9, includes a pump housing 4, a guide vane 5, and the above-described impeller structure. The bottom of the pump shell 4 is provided with a water suction port 41, the top is provided with a first water outlet 42, and the side part is provided with a second water outlet 43. The guide vane 5 is arranged in the pump shell 4 and divides the inner cavity of the pump shell 4 into an upper cavity 401 and a lower cavity 402, the first water outlet 42 is communicated with the upper cavity 401, the second water outlet 43 is communicated with the lower cavity 402, and the edge of the guide vane 5 is provided with a water guide opening 51 for supplying water from the lower cavity 402 into the upper cavity 401. The impeller structure is rotatably arranged in the lower cavity 402 and is used for sucking water below the pump shell 4 into the lower cavity 402 through the water suction port 41, and sucking the water in the lower cavity 402 into the upper cavity 401 through the water guide port 51 so as to be sucked out through the first water outlet 42 and directly through the second water outlet 43.

The guide vane 5 includes a cover plate 52 and a side plate 53 extending downward around the edge of the cover plate 52, the side plate 53 forms an open-loop structure in the circumferential direction of the cover plate 52 and is disposed corresponding to the second water outlet 43 at the opening 531, and the water guide opening 51 is opened on the side plate 53 and penetrates the cover plate 52 upward. The edge of the cover plate 52 is arranged close to the inner peripheral wall of the pump shell 4 and used for separating the upper cavity 401 and the lower cavity 402, the outer peripheral wall of the side plate 53 is arranged close to the inner peripheral wall of the lower part of the pump shell 4, the guide vanes 5 are connected with the inner wall of the pump shell 4 in a compact matching mode, the assembly stability is improved, interference to water flow is avoided, and the energy loss of fluid is reduced. The inner part of the lower cover plate 2 extends from top to bottom along the radial direction from outside to inside to form a downward water inlet 21, the water inlet 21 is positioned below the water suction port 41, and the water suction port 41 is arranged corresponding to the peripheral wall of the lower cover plate 2 at the periphery of the water inlet 21. The guide vane 5 does not move, but the cover plate 52 and the side plate 53 of the guide vane 5 are matched with the inner wall of the pump shell 4 to jointly enclose a lower cavity 402 with water absorbing and pressing functions, in the rotation process of the impeller, part of water flows are output from the side part of the pump shell 4 through the second water outlet 43 along with the rotation of the impeller, and the other part of water flows pass through the water guide opening 51 on the side plate 53 to upwards enter the upper cavity 401 and upwards convey the water through the first water outlet 42 at the top of the pump shell 4.

Because this embodiment mainly highlights the influence of impeller structure to the pump water effect, this impeller structure is applicable to can carry out the water pump of circumference and two way reposition of redundant personnel upwards through stator 5, consequently, emphatically explains impeller structure and the cooperation with pump case 4, and does only simple explanation to the concrete structure of stator 5 and the mode of dividing water.

The cleaning machine of this embodiment includes the box, first spray arm and second spray arm, still include above-mentioned water pump, the bottom half is provided with recessed return water region, the top that this return water region was covered has the filter, the return water region is located to the pump case, the clearance of absorbing water has between 41 and the return water region bottom of the water sucking mouth of pump case bottom, the first delivery port 42 at pump case top is located on the filter and is linked together with the water inlet of first spray arm, the second spray arm is located upper portion and is linked together through the second delivery port 43 of water feeding pipe and pump case in the box.

The impeller structure of this embodiment is arranged in open water pump, with stator structure cooperation, only utilizes an impeller, just can satisfy two way water supply demands simultaneously to, all keep two way water supplies to have great discharge and injection lift after the reposition of redundant personnel, thereby satisfied on the basis of simplifying water pump overall structure, improved pump water effect and cleaning performance.

Terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like, are used in the specification and claims of the present invention to describe various example structural parts and elements of the present invention, but these terms are used herein only for convenience of description and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be oriented in different directions, the directional terms are used for descriptive purposes and are not intended to be limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity.

Claims (12)

1. The utility model provides an impeller structure, includes upper cover plate (1), lower apron (2) and blade (3), upper cover plate (1) and apron (2) interval arrangement from top to bottom down, blade (3) are a plurality of and interval arrangement between upper cover plate (1) and apron (2) down, it has water inlet (21), adjacent two to open down on apron (2) enclose between blade (3) and close out water guide runner (31), form delivery port (32) that are linked together through water guide runner (31) and water inlet (21) between upper cover plate (1) edge and apron (2) edge down, its characterized in that: the blade (3) extends spirally from the inner end to the outer end along the anticlockwise direction from the top view, the projection of the inner end part (33) of the blade (3) on the horizontal plane is positioned in the water inlet (21), and the lower edge of the inner end part (33) is provided with an arc-shaped structure (331) which is arched towards the water inlet (21).

2. The impeller structure of claim 1, wherein: the water inlet (21) is arranged at the central part of the lower cover plate (2), and at least part of the lower cover plate (2) extends from top to bottom along the radial direction from outside to inside to form a downward-probing water inlet (21).

3. The impeller structure of claim 2, wherein: the lower cover plate (2) is gradually inclined downwards from the outer edge to the inner water inlet (21) along the radial direction to form a first flow guiding curved surface (20), the first flow guiding curved surface (20) comprises a gentle portion (201) located on the periphery and a curved portion (202) located on the inner side, and the water inlet (21) is located at the lower end of the curved portion (202).

4. The impeller structure according to claim 3, characterized in that: the upper edge of the inner end portion (33) of the blade (3) is connected to the junction of the gentle portion (201) and the curved portion (202).

5. The impeller structure of claim 3, wherein: the upper cover plate (1) is provided with a shaft (11) which extends downwards towards the water inlet (21), and the lower end of the shaft (11) penetrates through the water inlet (21) to be positioned below the water inlet (21).

6. The impeller structure according to claim 5, characterized in that: the upper cover plate (1) is inclined from outside to inside along the radial direction and from top to bottom to form a second flow guide curved surface (10) corresponding to the first flow guide curved surface (20), the second flow guide curved surface (10) is smoothly connected with the outer peripheral wall of the shaft (11), a flow space (100) is enclosed between the first flow guide curved surface (20) and the second flow guide curved surface (10), and the blades (3) are spirally arranged in the flow space (100).

7. The impeller structure of claim 6, wherein: the central part of the top of the upper cover plate (1) is provided with a sunken area (12), back blades (13) radially extending from the outer circumferential wall of the shaft (11) are arranged in the sunken area (12), and the top edges of the back blades (13) are approximately flush with the outer edge of the top of the upper cover plate (1).

8. The impeller structure according to any one of claims 1 to 7, characterized in that: the inner end of each blade (3) is positioned on a circle concentrically arranged with the center of the water inlet (21), the radius of the corresponding circle is R1, and the diameter R2 and R1= (0.6-0.85) R2 of the water inlet (21) are equal to each other.

9. The impeller structure according to any one of claims 1 to 7, characterized in that: the top of the upper cover plate (1) is provided with back blades (13) extending in a radial shape.

10. A water pump comprising a pump housing (4), characterized in that: the bottom of the pump shell (4) is provided with a water suction port (41), the top of the pump shell is provided with a first water outlet (42), and the side of the pump shell is provided with a second water outlet (43); further comprising:

the guide vane (5) is arranged in the pump shell (4) and divides an inner cavity of the pump shell (4) into an upper cavity (401) and a lower cavity (402), the first water outlet (42) is communicated with the upper cavity (401), the second water outlet (43) is communicated with the lower cavity (402), and the edge of the guide vane (5) is provided with a water guide opening (51) for water to enter the upper cavity (401) from the lower cavity (402); and

the impeller structure of any one of claims 1 to 9, rotatably disposed in the lower cavity (402), and configured to suck water under the pump casing (4) into the lower cavity (402) through the water suction port (41), and to pump water in the lower cavity (402) into the upper cavity (401) through the water guide port (51) and further out through the first water outlet (42) and directly out through the second water outlet (43); at least part of the lower cover plate (2) extends from outside to inside along the radial direction and from top to bottom to form a downward-probing water inlet (21), the water inlet (21) is positioned below the water suction port (41), and the water suction port (41) is arranged corresponding to the peripheral wall of the lower cover plate (2) on the periphery of the water inlet (21).

11. The water pump of claim 10, wherein: the guide vane (5) comprises a cover plate (52) and a side plate (53) extending downwards around the edge of the cover plate (52), the side plate (53) forms an open-loop structure in the circumferential direction of the cover plate (52) and the opening of the side plate is arranged corresponding to the second water outlet (43), and the water guide opening (51) is arranged on the side plate (53) and penetrates through the cover plate (52) upwards.

12. The utility model provides a cleaning machine, includes box, first spray arm and second spray arm, its characterized in that: the water pump further comprises the water pump as claimed in claim 10 or 11, wherein a concave water return area is arranged at the bottom of the box body, a filter plate covers the top of the water return area, the pump shell is arranged in the water return area, a water suction gap is formed between a water suction port (41) at the bottom of the pump shell (4) and the bottom of the water return area, a first water outlet (42) at the top of the pump shell (4) is positioned above the filter plate and communicated with a water inlet of a first spray arm, and a second spray arm is arranged at the middle upper part of the box body and communicated with a second water outlet (43) of the pump shell (4) through a water feeding pipeline.

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