CN218542691U

CN218542691U - Impeller structure and water pump and cleaning machine using same

Info

Publication number: CN218542691U
Application number: CN202222626156.3U
Authority: CN
Inventors: 韩健健; 施郑赞
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-28
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to an impeller structure and applied water pump, cleaning machine that have this impeller structure, including upper cover plate, lower apron and blade, the lower surface of upper cover plate is provided with the axle that extends downwards towards the water inlet, and this axle includes top-down first portion, the second portion that links up mutually, the first portion is located between upper cover plate and the lower apron and is connected with the inner of blade, the second portion passes the water inlet and is located under the water inlet, just the second portion forms to bowl form water conservancy diversion structure. 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.

Description

Impeller structure and water pump and cleaning machine with 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 the dish washing machine, and how to directly relate to the cleaning effect.

The applicant's prior patent ZL 202023352186.7 "an impeller structure and dual pump system, cleaning machine" discloses a structure, the impeller structure has a central shaft and a plurality of blades circumferentially spaced on the peripheral wall of the shaft, the shaft has a front cover plate and a back cover plate axially spaced, the blades are arranged between the front cover plate and the back cover plate, and the central part 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 sealed 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 prior art's current situation, provide an use water pump that has above-mentioned impeller structure, this water pump can utilize a drawing impeller to satisfy two way water supply demands simultaneously and keep great discharge and then improve the cleaning performance.

The utility model aims to solve the third technical problem 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:

the utility model provides an impeller structure, includes upper cover plate, lower cover plate and blade, upper cover plate and lower cover plate interval arrangement from top to bottom, the blade is a plurality of and interval arrangement between upper cover plate and lower cover plate, it has the water inlet to open on the lower cover plate, form the delivery port between upper cover plate edge and the lower cover plate edge, the lower surface of upper cover plate is provided with the axle that extends downwards towards the water inlet, and this axle includes top-down first part, the second part that links up mutually, first part is located between upper cover plate and the lower cover plate and is connected with blade inner, the second part passes the water inlet and is located under the water inlet, just the second part forms bowl form water conservancy diversion structure.

Preferably, the lower cover plate is annular and has a central opening forming the water inlet, the vanes extend radially at the outer circumference of the shaft, and inner end portions of the vanes are exposed at the water inlet. This structure can carry out the rectification to intaking, reduces energy loss, improves the effect of absorbing water.

Preferably, the blade comprises a first section and a second section which are sequentially connected from inside to outside along the radial direction, the first section is arranged across the water inlet, the first end of the first section is connected with the outer peripheral surface of the shaft, the second end of the first section is arranged corresponding to the coverage area of the lower cover plate, and the second section is obliquely arranged in the circumferential direction relative to the first section. From a top view, the first section is inclined along a counterclockwise direction from the first end to the second end, and the inner end to the outer end of the second section is inclined along a clockwise direction relative to the first section. By adopting the structure, the impeller rotates clockwise, the water absorption effect is favorably improved, and the requirements of high efficiency, high flow and high lift are met.

Preferably, the deflection angle of the first segment with respect to the radial direction of the impeller is a, and a =25 ° to 30 °. The deflection angle of the second section relative to the first section is b, and b = 25-30 °.

Preferably, the lower surface of the upper cover plate is recessed upwards near the edge to form a circumferentially arranged recessed area, and the junction of the first section and the second section is located in the recessed area. This structure is favorable to further improving the effect of absorbing water.

Further preferably, a step is formed between the recessed area and the lower surface of the upper cover plate inside, and the step is in smooth transition through a round corner or an inclined plane. This configuration is advantageous for reducing fluid energy losses.

Preferably, the inner side part of the upper cover plate extends from outside to inside along the radial direction and from top to bottom to form an arc-shaped structure, the inner end of the arc-shaped structure is smoothly connected with the shaft, and the outer end of the arc-shaped structure is arranged close to the edge of the water inlet. The outer end of the arc-shaped structure is arranged corresponding to the area inside the water inlet. This configuration is advantageous for further reducing fluid energy losses.

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 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 a water guide port for supplying water from the lower cavity into the upper cavity is arranged at the edge of the guide vane; 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; the outer surface of the bowl-shaped flow guide structure is arranged corresponding to the inner periphery of the water suction port.

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 a lower cavity with the functions of water absorption and water pressing, in the rotation process of the impeller, one part of water flow is output through the second water outlet along with the rotation of the impeller so as to the side part of the pump shell, 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 two-way flow division of water is realized through a simple structure, the matching degree of the flow dividing mode and the water drawing direction of the impeller is high, the reduction of the energy loss of fluid is facilitated, and the higher injection lift is kept.

The utility model provides a cleaning machine, includes box, bottom spray arm and top 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 bottom spray arm, the top spray arm is located upper portion and is linked together through the second delivery port of water supply line with the 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 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.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

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

fig. 4 is a schematic structural view of a water pump according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

fig. 6 is another cross-sectional view of fig. 4.

Detailed Description

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

As shown in fig. 1 to 3, 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 intervals from top to bottom, the blades 3 are arranged between the upper cover plate 1 and the lower cover plate 2 at intervals, the lower cover plate 2 is provided with a water inlet 21, and a water outlet 22 is formed between the edge of the upper cover plate 1 and the edge of the lower cover plate 2.

The lower surface of the upper cover plate 1 is provided with a shaft 11 extending downwards towards the water inlet 21, the shaft 11 comprises a first part 111 and a second part 112 which are connected from top to bottom, the first part 111 is positioned between the upper cover plate 1 and the lower cover plate 2 and is connected with the inner ends of the blades 3, the second part 112 passes through the water inlet 21 and is positioned below the water inlet 21, and the second part 112 is formed into a bowl-shaped flow guide structure 113.

The lower cover plate 2 is annular and has a central opening forming the water inlet 21, the blades 3 extend radially on the outer circumference of the shaft 11, and the inner end portions of the blades 3 are exposed at the water inlet 21. The structure can rectify the inflow water, reduce energy loss and improve the water absorption effect.

The vane 3 of this embodiment includes a first section 31 and a second section 32 which are sequentially connected from inside to outside in the radial direction, the first section 31 is disposed across the water inlet 21, the first end is connected to the outer circumferential surface of the shaft 11, the second end is disposed corresponding to the covering area of the lower cover plate 2, and the second section 32 is disposed to be inclined in the circumferential direction with respect to the first section 31. The deflection angle of the first segment 31 with respect to the impeller radial direction is a, and a =25 ° to 30 °. The second segment 32 has a deflection angle b relative to the first segment 31, b =25 ° to 30 °. The first section 31 is inclined in a counterclockwise direction from the first end to the second end, and the inner end to the outer end of the second section 32 is inclined in a clockwise direction with respect to the first section 31 in a top view. By adopting the structure, the impeller rotates clockwise, the water absorption effect is favorably improved, and the requirements of high efficiency, high flow and high lift are met.

In this embodiment, the lower surface of the upper cover plate 1 is recessed upwards near the edge to form a circumferentially arranged recessed area 12, and the joint of the first section 31 and the second section 32 is located in the recessed area 12, which is favorable for further improving the water absorption effect. The depressed area 12 and the inner lower surface of the upper cover plate 1 form a step 13, and the step 13 is smoothly transited through a round corner or a slope, which is beneficial to reducing the energy loss of the fluid. The inner part of the upper cover plate 1 extends from outside to inside along the radial direction and from top to bottom to form an arc-shaped structure 14, the inner end of the arc-shaped structure 14 is smoothly connected with the shaft 11, and the outer end of the arc-shaped structure is arranged close to the edge of the water inlet 21. The outer end of the arc-shaped structure 14 is arranged corresponding to the area inside the water inlet 21, and the structure is beneficial to further reducing the energy loss of the fluid.

As shown in fig. 4 to 6, the water pump of the present embodiment is an open water pump, and includes a pump housing 4, a guide vane 5, and the 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 outer surface of the bowl-shaped flow guide structure 113 is arranged corresponding to the inner periphery of the water suction port 41 to improve the water suction efficiency.

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 has an opening corresponding to the second water outlet 43, 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 an upper cavity 401 from a 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, and the guide vanes 5 are compactly matched and connected with the inner wall of the pump shell 4, so that the assembly stability is improved, the interference on water flow is avoided, and the energy loss of fluid is reduced. 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, bottom spray arm and top spray arm, still include above-mentioned water pump, the bottom half is provided with recessed backwater region, the top in this backwater region covers there is the filter, the return water is regional in the pump case is located, the clearance that absorbs water has between 41 and the backwater 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 bottom spray arm, top spray arm locates in the box upper portion and is linked together through the second delivery port 43 of sending water pipeline and pump case.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only 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

1. The utility model provides an impeller structure, includes upper cover plate (1), lower apron (2) and blade (3), interval arrangement about upper cover plate (1) and lower apron (2), blade (3) are a plurality of and interval arrangement between upper cover plate (1) and lower apron (2), it has water inlet (21) to open on apron (2) down, form delivery port (22), its characterized in that between upper cover plate (1) edge and lower apron (2) edge: the lower surface of the upper cover plate (1) is provided with a shaft (11) extending downwards towards the water inlet (21), the shaft (11) comprises a first part (111) and a second part (112) which are connected from top to bottom, the first part (111) is positioned between the upper cover plate (1) and the lower cover plate (2) and is connected with the inner ends of the blades (3), the second part (112) penetrates through the water inlet (21) to be positioned below the water inlet (21), and the second part (112) is formed into a bowl-shaped flow guide structure (113).

2. The impeller structure of claim 1, wherein: the lower cover plate (2) is annular, a central opening forms the water inlet (21), the blades (3) extend along the radial direction at the periphery of the shaft (11), and the inner end parts of the blades (3) are exposed at the water inlet (21).

3. The impeller structure of claim 2, wherein: the blade (3) include along radial from inside to outside first section (31), second section (32) that link up in proper order, first section (31) stride across water inlet (21) and arrange and first end is connected with the outer peripheral face of axle (11), the second end corresponds the coverage area of apron (2) and arranges, second section (32) are inclined upwards in the circumference for first section (31) and are arranged.

4. The impeller structure of claim 3, wherein: from a top view, the first section (31) is inclined in a counterclockwise direction from the first end to the second end, and the inner end to the outer end of the second section (32) is inclined in a clockwise direction relative to the first section (31).

5. The impeller structure of claim 3, wherein: the lower surface of the upper cover plate (1) is upwards sunken near the edge to form a circumferentially arranged sunken area (12), and the joint of the first section (31) and the second section (32) is positioned in the sunken area (12).

6. The impeller structure of claim 5, wherein: a step (13) is formed between the depressed area (12) and the lower surface of the upper cover plate (1) inside, and the step (13) is in smooth transition through a round angle or an inclined plane.

7. The impeller structure of claim 3, wherein: the deflection angle of the first section (31) relative to the radial direction of the impeller is a, and a = 25-30 degrees.

8. The impeller structure of claim 3, wherein: the second section (32) has a deflection angle b relative to the first section (31), b = 25-30 °.

9. The impeller structure according to any one of claims 1 to 8, characterized in that: the inner side part of the upper cover plate (1) extends from outside to inside along the radial direction and from top to bottom to form an arc-shaped structure (14), the inner end of the arc-shaped structure (14) is smoothly connected with the shaft (11), and the outer end of the arc-shaped structure is arranged close to the edge of the water inlet (21).

10. The impeller structure of claim 9, wherein: the outer end of the arc-shaped structure (14) is arranged corresponding to the area inside the water inlet (21).

11. 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 part 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 supplying water from the lower cavity (402) into the upper cavity (401); and

the impeller structure of any one of claims 1 to 10, which is rotatably arranged in the lower cavity (402) and is used for sucking water below the pump casing (4) into the lower cavity (402) through the water suction port (41), sucking water in the lower cavity (402) into the upper cavity (401) through the water guide port (51), further sucking the water out through the first water outlet (42) and directly sucking the water out through the second water outlet (43); the outer surface of the bowl-shaped flow guide structure (113) is arranged corresponding to the inner periphery of the water suction opening (41).

12. The water pump of claim 11, 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.

13. The utility model provides a cleaning machine, includes box, bottom spray arm and top spray arm, its characterized in that: the water pump of claim 11 or 12, wherein the bottom of the box body is provided with a concave water return area, the top of the water return area is covered with a filter plate, 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 the bottom spray arm, and the top 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.