CN218542692U

CN218542692U - Impeller structure and water pump and cleaning machine with same

Info

Publication number: CN218542692U
Application number: CN202222626179.4U
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 has this impeller structure, including upper cover plate, lower apron and blade, upper cover plate and apron interval arrangement down, the blade is a plurality of and interval arrangement between upper cover plate and lower apron, it has the water inlet to open down on the apron, form the delivery port between upper cover plate edge and the lower apron edge, the blade extends along impeller circumference spiral from inner to the outer end, adjacent two enclose between the blade and close out the water guide runner, and the inner port of this water guide runner corresponds the water inlet and arranges and the width is d1, and the outer port of this water guide runner forms delivery port and width and is d2, and d2= (14.2 ~ 19.5) d1. The utility model discloses an impeller is through improving blade structure, more is applicable to the spray arm that requires height, flow requirement to the lift, thereby can effectively improve the lift and satisfy the pump water demand, improve the cleaning performance to satisfied on the basis of simplifying water pump overall structure, improved the pump water effect.

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 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 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 above-mentioned double pump system, the discharge that the impeller matches is the better more, and when discharge is great, inevitable can cause the restriction to the lift, to the spray arm that the lift demand is big, is difficult to satisfy the pump water demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem is to prior art's current situation, thereby provide one kind and can effectively improve the lift and satisfy the pump demand, improve cleaning performance's impeller structure.

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 a impeller of drawing water to satisfy two way water supply demands simultaneously and keep higher lift and then improve the cleaning performance.

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 is:

the utility model provides an impeller structure, includes upper cover plate, lower apron and blade, upper cover plate and lower apron interval arrangement from top to bottom, the blade is a plurality of and interval arrangement between upper cover plate and lower apron, it has the water inlet to open on the apron down, form the delivery port between upper cover plate edge and the lower apron edge, the blade extends along impeller circumference spiral from inner to the outer end, adjacent two enclose out the water guide runner between the blade, the inner port of this water guide runner corresponds the water inlet and arranges and the width is d1, and the outer port of this water guide runner forms delivery port and width is d2, and d2= (14.2 ~ 19.5) d1.

Preferably, the blades extend spirally from the inner end to the outer end in a counterclockwise direction when viewed from above. By adopting the structure, the impeller rotates clockwise, which is beneficial to improving the lift.

Preferably, the extending track of the blade at least comprises a first arc section, a curve section and a second arc section which are sequentially connected from the inner end to the outer end, the first arc section arches towards the rotating direction of the impeller structure, the arch direction of the second arc section is opposite to that of the first arc section, and the curve section is smoothly connected between the first arc section and the second arc section. The structure is beneficial to reducing the energy loss of fluid, further improves the lift, and can match the spray arm structure with small flow requirement and high lift requirement.

In one embodiment, the first arc segment and/or the second arc segment are formed by fitting a multi-segment arc structure.

In another embodiment, the first arc segment and/or the second arc segment is a circular arc segment. More preferably, the central angle corresponding to the first arc segment is r1, the circular angle corresponding to the second arc segment is r2, and r1= (1.1 to 1.3) r2.

The structure is beneficial to reducing the energy loss of the fluid and improving the lift.

Preferably, the inner ends of the blades are positioned on a circle which is concentrically arranged with the water inlet, the radius of the corresponding circle is R1, the radius of the water inlet is R2, and R2= (1.2-1.6) R1.

Preferably, the lower surface of the upper cover plate is provided with a shaft extending downwardly towards the water inlet, the lower end of the shaft being substantially flush with the lower edge of the water inlet. Preferably, the upper cover plate and the lower cover plate are arranged from the edge to the radial direction inwards and obliquely extend from top to bottom. The structure is beneficial to further reducing the energy loss of the fluid.

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 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 height of the lower edge of the water inlet is basically consistent with that of the lower edge of the water suction port, and the inner wall of the water suction port is arranged corresponding to the outer 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 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 that absorbs 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 in the box and is linked together through the second delivery port of water supply line with the pump case.

Compared with the prior art, the utility model has the advantages of: the utility model provides an impeller structure for an open water pump, a water pump and a cleaning machine, wherein the impeller structure is used in the open water pump and matched with a guide vane structure, and can simultaneously meet the requirements of two paths of water supply by only utilizing one impeller; the utility model discloses an impeller is through improving blade structure, more is applicable to the spray arm that requires height, flow requirement to the lift, thereby can effectively improve the lift and satisfy the pump water demand, improve the cleaning performance to satisfied on the basis of simplifying water pump overall structure, improved the pump water effect.

Drawings

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

FIG. 2 is a cross-sectional view (longitudinal cross-section) of FIG. 1;

fig. 3 is a bottom view of the impeller structure in embodiment 1 of the present invention;

fig. 4 is a cross-sectional view (cross-sectional) of the impeller structure in embodiments 1 and 2 of the present invention;

fig. 5 is a schematic structural view of a water pump in embodiment 1 of the present invention;

fig. 6 is a schematic diagram (longitudinal section) of the internal structure of a water pump in embodiment 1 of the present invention;

fig. 7 is an internal structural schematic view (cross section) of a water pump in embodiment 1 of the present invention.

Detailed Description

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

Example 1:

as shown in fig. 1 to 4, 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 blades 3 extend spirally from the inner end to the outer end along the circumferential direction of the impeller, and the blades 3 extend spirally from the inner end to the outer end along the counterclockwise direction in a top view. By adopting the structure, the impeller rotates clockwise, which is beneficial to improving the lift.

A water guide channel 31 is enclosed between two adjacent blades 3, an inner port of the water guide channel 31 is arranged corresponding to the water inlet 21 and has a width d1, an outer port of the water guide channel 31 forms the water outlet 22 and has a width d2, and d2= (14.2-19.5) d1. The inner ends of the vanes 3 are located on a circle concentrically arranged with the water inlet 21, and the radius of the corresponding circle is R1, the radius of the water inlet 21 is R2, and R2= (1.2-1.6) R1.

The extending track of the blade 3 at least comprises a first arc section 301, a curve section 303 and a second arc section 302 which are sequentially connected from the inner end to the outer end, the first arc section 301 arches towards the rotating direction of the impeller structure, the arch direction of the second arc section 302 is opposite to that of the first arc section 301, and the curve section 303 is smoothly connected between the first arc section 301 and the second arc section 302. The structure is favorable for reducing the energy loss of fluid, further improves the lift, and can match the spray arm structure with small flow requirement and high lift requirement.

In this embodiment, the first arc 301 and the second arc 302 are respectively formed by fitting a multi-segment arc structure, so as to reduce the energy loss of the fluid as much as possible and increase the lift.

The lower surface of the upper cover plate 1 is provided with a shaft 11 extending downward toward the water inlet 21, and the lower end of the shaft 11 is substantially flush with the lower edge of the water inlet 21. The upper cover plate 1 and the lower cover plate 2 are arranged from the edge to the radial direction and inwards and obliquely extend from top to bottom. The structure is beneficial to further reducing the energy loss of the fluid.

The impeller structure of this embodiment can compromise high-efficient and fall and make an uproar, avoids the higher interval of noise, is applicable to more that the requirement is high, the little spray arm structure of flow requirement to the lift.

The water pump of the present embodiment is an open water pump, and as shown in fig. 5, 6, and 7, 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. 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, the height of the lower edge of the water inlet 21 is basically consistent with that of the lower edge of the water suction port 41, and the inner wall of the water suction port 41 is arranged corresponding to the outer 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.

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 return water region, the top of 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 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 bottom spray arm, the top spray arm is located upper portion and is linked together through the second delivery port 43 of water supply pipe and pump case in the box.

Example 2:

this example differs from example 1 in that: as shown in fig. 4, the first arc segment 301 and the second arc segment 302 are both arc segments. The central angle corresponding to the first arc segment 301 is r1, the circular angle corresponding to the second arc segment 302 is r2, and r1= (1.1-1.3) r2.

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 arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent 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 blades (3) extend spirally from the inner end to the outer end along the circumferential direction of the impeller, a water guide flow channel (31) is enclosed between every two adjacent blades (3), the inner port of the water guide flow channel (31) is arranged corresponding to the water inlet (21) and has the width of d1, the outer port of the water guide flow channel (31) forms a water outlet (22) and has the width of d2, and d2= (14.2-19.5) d1.

2. The impeller structure according to claim 1, characterized in that: the blades (3) spirally extend from the inner end to the outer end along the counterclockwise direction from the top view.

3. The impeller structure of claim 2, wherein: the extension track of blade (3) is including first segmental arc (301), curve section (303), second segmental arc (302) that link up in proper order to the outer end at least from the inner, first segmental arc (301) are to the direction of rotation hunch-up of impeller structure, the hunch-up direction of second segmental arc (302) is opposite with first segmental arc (301), curve section (303) smooth connection is between first segmental arc (301) and second segmental arc (302).

4. The impeller structure according to claim 3, characterized in that: the first arc section (301) and/or the second arc section (302) are formed by fitting a multi-section arc structure.

5. The impeller structure of claim 3, wherein: the first arc segment (301) and/or the second arc segment (302) are arc segments.

6. The impeller structure according to claim 5, characterized in that: the central angle corresponding to the first arc segment (301) is r1, the circular angle corresponding to the second arc segment (302) is r2, and r1= (1.1-1.3) r2.

7. The impeller structure according to any one of claims 1 to 6, characterized in that: the inner ends of the blades (3) are positioned on a circle which is concentrically arranged with the water inlet (21), the radius of the corresponding circle is R1, the radius of the water inlet (21) is R2, and R2= (1.2-1.6) R1.

8. The impeller structure according to any one of claims 1 to 6, characterized in that: the lower surface of 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) is approximately flush with the lower edge of the water inlet (21).

9. The impeller structure according to any one of claims 1 to 6, characterized in that: the upper cover plate (1) and the lower cover plate (2) are arranged from the edge to the radial direction inwards and obliquely extend from top to bottom.

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, 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); 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 height of the lower edge of the water inlet (21) is consistent with that of the lower edge of the water suction port (41), and the inner wall of the water suction port (41) is arranged corresponding to the outer 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, bottom spray arm and top 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 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.