CN109394122B

CN109394122B - Cleaning machine

Info

Publication number: CN109394122B
Application number: CN201710714257.7A
Authority: CN
Inventors: 徐慧; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-08-18
Filing date: 2017-08-18
Publication date: 2024-01-16
Anticipated expiration: 2037-08-18
Also published as: CN109394122A

Abstract

The invention relates to a cleaning machine, which comprises a box body, a water outlet component and a water pump, wherein the box body is provided with a washing space, the water outlet component is arranged in the washing space, the water pump is provided with an impeller which can pump water in the washing space into the water outlet component, the impeller comprises a central shaft and a plurality of blades which are arranged on the peripheral surface of the central shaft at intervals, the blades comprise a first blade and a second blade, and the first blade and the second blade are provided with asymmetric structures in the circumferential direction and/or the radial direction of the central shaft so as to form pulse water flow. The invention adopts the impeller of the open water pump with a new structure, the first blade and the second blade of the impeller have asymmetric structures in the circumferential direction and/or the radial direction of the central shaft, when the impeller throws water into the flow channel of the water outlet component, the water sprayed into the flow channel of the water outlet component can be similar to pulses due to different water drawing forces of the first blade and the second blade, namely, one stream of water is rapid and one stream of water is relatively slow, so that the bowl and dish cleaning effect is enhanced.

Description

Cleaning machine

Technical Field

The invention relates to a cleaning machine, in particular to a cleaning machine which can pulse water flow so as to improve the cleaning effect.

Background

With the increasing level of living of people, dish washers are increasingly entering home as household electrical appliances for kitchen use. The existing dish-washing machines on the market are generally divided into three types of a desk type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the desk type dish-washing machine is of an integral independent structure and is generally placed on a desk for use; the cabinet type dish washer is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the tub dishwasher is combined with a tub and is generally installed in a kitchen cabinet.

The dish washing machine of the above-mentioned various forms generally has a washing function by lifting water by a water pump and spraying the water toward dishes in a washing space. For example, the chinese patent with application number CN97236119.7, i.e. a microcomputer light-operated full-automatic dish washer, and the chinese patent with application number CN00240098.7, i.e. a dish washer, all disclose similar structures, in which the impact force of water flow sprayed to the dishes is weak and not uniform enough, and when the number of dishes is large, the water flow cannot be covered, resulting in poor cleaning effect. The chinese patent with application number CN200710306898.5, "dish washing machine, especially household dish washing machine, provided with a device for improving decontamination effect" provides a vaporizing device for generating a fluid mist that can be introduced into a dish washing machine cavity to expand the washing area of the dishes and improve the uniformity of the washing medium, but such a structure still cannot solve the problem of weak impact force of the sprayed water flow.

In order to solve the above problems, the applicant's patent No. CN201310751206.3, an impeller of an open water pump, provides a structure, the impeller comprises a shaft at the center and a plurality of axially extending blades uniformly distributed circumferentially on the peripheral surface of the shaft, the blades are axially divided into an upper section and a lower section connected to each other, the bottoms of at least the lower sections of the blades are gradually smoothly curved on the peripheral surface of the shaft along the rotation direction of the impeller, and the height ratio of the lower section height to the upper section height of the blades is 1-5. By setting the proper height ratio of the upper section and the lower section of the blade, the impeller can draw water at a lower water level, foam formed by washing liquid or food residues on the water surface is not easy to be involved in the impeller to influence water drawing, and enough flow can be drawn from the water inlet; the upper sections of the blades are set to be larger than the lower sections in radial dimension, so that the flow channel gradually increases in width in the rising process of the water flow, and the axial flow velocity is reduced and the flow velocity of the sprayed water flow is improved. However, the impeller with the structure still cannot meet the requirements for fruits, vegetables or dishes which are difficult to clean.

Disclosure of Invention

The invention aims to solve the technical problem of providing a cleaning machine capable of improving the cleaning effect by pulsing water flow.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a cleaning machine, includes box, play water part and water pump, the box has the washing space, go out water part and locate in this washing space, the water pump has the impeller that can go into water part with the water pump in the washing space in, its characterized in that: the impeller comprises a central shaft and a plurality of blades which are arranged on the peripheral surface of the central shaft at intervals, wherein the blades comprise a first blade and a second blade, and the first blade and the second blade have asymmetric structures in the circumferential direction and/or the radial direction of the central shaft so as to form pulse water flow.

The cleaning machine also comprises a washing mechanism arranged on the box body.

In the above aspect, the second blade has a first upper section extending radially outward on an outer peripheral surface of the center shaft, and a first lower section connected to the first upper section, the first lower section being arranged in an axial direction of the center shaft. The structure is arranged to enhance the water drawing capability of the impeller.

Preferably, the upper surface and the lower surface of the first upper section are both arched upwards to form a first arc surface, and the upper surface of the first upper section is higher than the upper end surface of the central shaft. The first lower section extends to the lower end of the central shaft and the outer side is arranged parallel to the axial direction of the central shaft. The first arc surface can form a certain water guiding function to further improve the water drawing capability.

Preferably, the first blade and the second blade have an asymmetric structure in the circumferential direction of the central axis, which means that the thickness of the first blade is greater than the thickness of the second blade. The first blade is shaped into a quadrangular prism, and the upper surface of the first blade is flush with the upper end surface of the central shaft. The first blades and the second impellers with uneven thickness are selected, so that the force of the impellers in the flow channel for throwing water into the water outlet part is uneven, and the water sprayed into the flow channel is similar to pulse: the washing effect on the dishes is enhanced by rapidly and relatively slowly.

Preferably, the first blade and the second blade have an asymmetric structure in the radial direction of the central shaft, which means that the length of the first blade in the radial direction is smaller than the length of the second blade in the radial direction, and the length of the first blade in the radial direction is larger than the length of the first lower section in the radial direction and smaller than the length of the first upper section in the radial direction.

Preferably, the first vane has a second upper section extending radially outward on an outer peripheral surface of the central shaft and a second lower section connected to the second upper section, the second lower section being arranged in an axial direction of the central shaft.

Preferably, the upper surface and the lower surface of the second upper section are both arched upwards to form a second arc surface, and the upper surface of the second upper section is higher than the upper end surface of the central shaft. The second lower section extends to the lower end of the central shaft and the outer side is arranged parallel to the axial direction of the central shaft.

As a modification, the first blade and the second blade have an asymmetric structure in the radial direction of the central axis, which means that the length of the second upper section in the radial direction is smaller than the length of the first upper section in the radial direction. This configuration directly results in the first blade and the second blade having different water drawing capacities, thereby generating a pulsed water flow.

Further, the first blade and the second blade have an asymmetric structure in the circumferential direction of the central shaft, namely, two second blades and one first blade form a blade set together, in the blade set, the first blade is arranged between the two second blades, and at least two blade sets are arranged on the outer circumferential surface of the central shaft. And the distance between two adjacent blade groups in the circumferential direction is larger than that between the adjacent first blade and the adjacent second blade. In the structure, the thicknesses of the first blade and the second blade are uniform, but the axial distribution is uneven, so that the force of the impeller in the flow passage for throwing water into the water outlet part is also uneven, and the water sprayed into the flow passage can be similar to pulse: the washing effect on the dishes is enhanced by rapidly and relatively slowly.

In order to facilitate assembly and water drawing, the cleaning machine further comprises a flow guide seat arranged on the inner bottom surface of the box body, a flow guide opening through which water flows is formed in the flow guide seat, a first end of the flow guide seat is arranged on the box body, a second end of the flow guide seat is connected with a water outlet component, a water inlet positioned at the inner ring of the flow guide seat is formed in the bottom of the water outlet component, and a water outlet hole is formed in the top of the water outlet component.

In order to facilitate water drawing, the upper part of the impeller passes through the water inlet and is positioned in the inner cavity of the water outlet component, the lower part of the impeller is positioned in the guide seat, the bottom of the box body is provided with a motor for driving the impeller to rotate, the middle of the impeller is provided with a shaft hole which is axially arranged, and an output shaft of the motor is connected with the shaft hole.

Preferably, the radial dimension ratio of the first upper section radial dimension to the first lower section radial dimension of the second blade is 1 to 5.

Preferably, the radial dimension ratio of the radial dimension of the second upper section to the radial dimension of the second lower section of the first blade is 1 to 5.

Preferably, the ratio of the radial dimension of the second upper section of the first blade to the radial dimension of the first upper section of the second blade is 0.3-0.9.

Compared with the prior art, the invention has the advantages that: the invention adopts the impeller of the open water pump with a new structure, the first blade and the second blade of the impeller have asymmetric structures in the circumferential direction and/or the radial direction of the central shaft, when the impeller throws water into the flow channel of the water outlet component, the water sprayed into the flow channel of the water outlet component can be similar to pulses due to different water drawing forces of the first blade and the second blade, namely, one stream of water is rapid and one stream of water is relatively slow, so that the bowl and dish cleaning effect is enhanced.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

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

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;

FIG. 4 is a schematic diagram showing the assembly structure of the water outlet structure and the water pump and air-entraining mechanism in embodiment 1 of the present invention;

FIG. 5 is a schematic view showing the structure of an impeller in embodiment 1 of the present invention;

fig. 6 is a schematic structural view of an impeller in embodiment 2 of the present invention.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

Example 1:

as shown in fig. 1 to 5, the cleaning machine of the present embodiment includes a casing 1, a water outlet member 2 and a water pump 3, the casing 1 has a washing space 10, the water outlet member 2 is disposed in the washing space 10 and is located at the bottom of the washing space 10, the water pump 3 is disposed at the bottom of the casing 1, and the water pump 3 includes an impeller 31 capable of pumping water in the washing space 10 into the water outlet member 2 and a motor 32 for powering the impeller 31.

The impeller 31 of the present embodiment includes a central shaft 311 and a plurality of blades 312 arranged at intervals on the outer peripheral surface of the central shaft 311, the blades 312 include a first blade 3121 and a second blade 3122, and the first blade 3121 and the second blade 3122 have an asymmetric structure in the circumferential direction and the radial direction of the central shaft 311 to form a pulsed water flow. Of course, a purely circumferentially or radially asymmetric impeller creates a pulsed water flow.

Specifically, the second vane 3122 extends axially on the central shaft 311, the second vane 3122 has a first upper section 3123 and a first lower section 3124 connected to the first upper section 3123, the first upper section 3123 extends radially outwardly on the outer peripheral surface of the central shaft 311, and the first lower section 3124 is arranged axially of the central shaft 311. And, the radial dimension ratio of the radial dimension of the first upper segment 3123 to the radial dimension of the first lower segment 3124 of the second vane 3122 is 1 to 5. The upper surface and the lower surface of the first upper segment 3123 are both upwardly arched to form a first arc surface 3125, and the upper surface of the first upper segment 3125 is higher than the upper end surface of the central shaft 311. The first lower segment 3124 extends to the lower end of the central shaft 311 and the outer lateral surface is arranged parallel to the axial direction of the central shaft 311. The thickness of the first blade 3121 is greater than that of the second blade 3122, the first blade 3121 of the present embodiment is shaped as a quadrangular prism, and the upper surface of the first blade 3121 is flush with the upper end surface of the central shaft 311. The length of the first vane 3121 in the radial direction is smaller than the length of the second vane 3122 in the radial direction, which is embodied by the length of the first vane 3121 in the radial direction being greater than the length of the first lower section 3124 and less than the length of the first upper section 3123 in the radial direction.

In this embodiment, the cleaning machine further includes a guide seat 4 disposed on the inner bottom surface of the box 1, a guide opening 41 through which the water flows is opened on the guide seat 4, a first end of the guide seat 41 is disposed on the box 1, a second end of the guide seat 4 is connected with the water outlet component 2, a water inlet 21 located at the inner ring of the guide seat 4 is opened at the bottom of the water outlet component 2, and a water outlet hole 22 is formed at the top of the water outlet component 2. The upper part of the impeller 31 of the embodiment passes through the water inlet 21 and is positioned in the inner cavity of the water outlet component 2, and the lower part of the impeller 31 is positioned in the diversion seat 4. The impeller 31 is provided with a shaft hole 310 arranged along the axial direction in the middle, the motor 32 is arranged at the bottom of the box body 1, and an output shaft 321 of the motor 32 is connected with the shaft hole 310.

The cleaning machine of this embodiment further includes the air entrainment mechanism 5 that can aerify to in the water outlet part 2, and this air entrainment mechanism 5 includes air pump 51 and air duct 52, and the box 1 outside is located to air pump 51, and air duct 52's first end is connected with air pump 51, and the inside cavity of motor shaft 321, and air duct 52's second end is linked together with motor shaft 321's first end, and motor shaft 321's second end passes shaft 310 and stretches into in the inner chamber of water outlet part 2. The structure can be used for adding air into the water flow, and under the stirring of the impeller 31, the air bubbles which are relatively uniform are dispersed in the water flow, so that when the water flow is sprayed to the bowl wall, the air bubbles are broken, and stronger impact force is generated, so that the cleaning force is improved. The water outlet structure 2 of this embodiment is a spray arm, the inner surface of the top of the spray arm is provided with an air collecting cavity 20, the lower surface of the air collecting cavity 20 is communicated with the second end of the motor shaft 231, and the air collecting cavity 20 is provided with an air outlet 201 positioned in the inner cavity of the spray arm.

The cleaning machine of the present embodiment adopts the impeller 31 of the open water pump with a new structure, the thickness of the first blade 3121 is greater than the thickness of the second blade 3122, so that the speed of the impeller 31 drawing water flow is uneven, when the impeller 31 throws water into the flow passage of the water outlet member 2, the water sprayed into the flow passage of the water outlet member 2 can be made to be similar to pulses, that is, quick and relatively slow, so as to enhance the cleaning effect on dishes.

Example 2:

this embodiment differs from embodiment 1 only in that: as shown in fig. 6, the structure of the first blade 3121' in the present embodiment is different from that in embodiment 1. The first and second blades 3121 'and 3122 in the present embodiment have substantially the same structure, and the first and second blades 3121' and 3122 each extend in the axial direction on the central shaft 311.

The first and second blades 3121', 3122 in this embodiment are different in blade radial length. Specifically, the first vane 3121 'has a second upper segment 3123' and a second lower segment 3124 'connected to the second upper segment 3123', the second upper segment 3123 'extending radially outwardly on the outer circumferential surface of the central shaft 311, and the second lower segment 3124' being disposed along the axial direction of the central shaft 311. The radial dimension ratio of the radial dimension of the second upper segment 3123' to the radial dimension of the second lower segment 3124' of the first vane 3121' is 1-5. The ratio of the radial dimension of the second upper section 3123 'of the first vane 3121' to the radial dimension of the first upper section 3123 of the second vane 3122 is 0.3 to 0.9, i.e. the radial dimension of the first upper section 3123 of the second vane 3122 is greater than the radial dimension of the second upper section 3123 'of the first vane 3121' in the present embodiment. The upper surface and the lower surface of the second upper segment 3123' are both upwardly arched to form a second arc surface 3125', and the upper surface of the second upper segment 3125' is higher than the upper end surface of the central shaft 311. The second lower segment 3124' extends to the lower end of the central shaft 311 and the outer lateral surface is arranged parallel to the axial direction of the central shaft 311. The two second blades 3122 and one first blade 3121 'together form one blade group 3120, and in the blade group 3120, the first blade 3121' is disposed between the two second blades 3122, and at least two blade groups 3120, preferably three, are disposed on the outer circumferential surface of the central shaft 311 of the impeller 31. The distance between two adjacent blade groups 3120 in the circumferential direction is greater than the distance between the adjacent first blade 3121 and the second blade 3122 in the circumferential direction.

The thickness of the first blades 3121', the second blades 3122 of the present embodiment is uniform, but the radial size distribution is not uniform, so that the force of the impeller 31 in the flow passage for throwing the water into the water outlet part 2 is also non-uniform, and the water injected into the flow passage can be made similar to a pulse: the washing effect on the dishes is enhanced by rapidly and relatively slowly.

Claims

1. The utility model provides a cleaning machine, includes box (1), play water part (2) and water pump (3), box (1) have washing space (10), go out water part (2) and locate in this washing space (10), water pump (3) have can go into impeller (31) in water part (2) with the water pump in washing space (10), its characterized in that: the impeller (31) comprises a central shaft (311) and a plurality of blades (312) which are arranged on the peripheral surface of the central shaft (311) at intervals, wherein the blades (312) comprise a first blade and a second blade (3122), and the first blade and the second blade (3122) have an asymmetric structure in the circumferential direction and/or the radial direction of the central shaft (311) so as to form a pulse water flow;

the second blade (3122) has a first upper section (3123) and a first lower section (3124) connected to the first upper section (3123), the first upper section (3123) extending radially outward on the outer peripheral surface of the central shaft (311), the first lower section (3124) being arranged along the axial direction of the central shaft (311);

the upper surface and the lower surface of the first upper section (3123) are upwards arched to form a first arc-shaped surface (3125), and the upper surface of the first upper section (3123) is higher than the upper end surface of the central shaft (311);

the first and second blades (3122) having an asymmetric structure in the circumferential direction of the central axis (311) means that the thickness of the first blade is greater than the thickness of the second blade (3122).

2. The cleaning machine of claim 1, wherein: the first lower section (3124) extends to a lower end of the central shaft (311) and the outer side surface is arranged parallel to an axial direction of the central shaft (311).

3. The cleaning machine of claim 1, wherein: the first blade is shaped into a quadrangular prism, and the upper surface of the first blade is flush with the upper end surface of the central shaft (311).

4. The cleaning machine of claim 1, wherein: the asymmetric structure of the first and second blades (3122) in the radial direction of the central shaft (311) means that the length of the first blade in the radial direction is smaller than the length of the second blade (3122) in the radial direction.

5. The cleaning machine of claim 1, wherein: the first blade has a second upper section (3123 ') and a second lower section (3124 ') connected to the second upper section (3123 '), the second upper section (3123 ') extending radially outward on an outer peripheral surface of the central shaft (311), the second lower section (3124 ') being arranged along an axial direction of the central shaft (311).

6. The cleaning machine of claim 5, wherein: the upper surface and the lower surface of the second upper section (3123 ') are both arched upwards to form a second arc-shaped surface (3125 '), and the upper surface of the second upper section (3123 ') is higher than the upper end surface of the central shaft (311); the second lower section (3124') extends to the lower end of the central shaft (311) and the outer side is arranged parallel to the axial direction of the central shaft (311).

7. The cleaning machine of claim 5, wherein: the asymmetric structure of the first and second blades (3122) in the radial direction of the central axis (311) means that the length of the second upper section (3123') in the radial direction is smaller than the length of the first upper section (3123) in the radial direction.

8. The cleaning machine of claim 5, wherein: the first blades and the second blades (3122) having an asymmetric structure in the circumferential direction of the central shaft (311) means that two second blades (3122) and one first blade together form a blade group (3120), in which blade group (3120) the first blade is provided between the two second blades (3122), and at least two blade groups (3120) are provided on the outer circumferential surface of the central shaft (311).

9. The cleaning machine of claim 8, wherein: the distance between two adjacent blade groups (3120) in the circumferential direction is greater than the distance between the adjacent first blade and the second blade (3122) in the circumferential direction.

10. The cleaning machine of any one of claims 1-9, wherein: the water guide device is characterized by further comprising a guide seat (4) arranged on the inner bottom surface of the box body (1), a guide opening (41) through which water flows pass is formed in the guide seat (4), a first end of the guide seat (4) is arranged on the box body (1), a second end of the guide seat (4) is connected with a water outlet component (2), a water inlet (21) positioned at the inner ring of the guide seat (4) is formed in the bottom of the water outlet component (2), and a water outlet hole (22) is formed in the top of the water outlet component (2).

11. The cleaning machine of claim 10, wherein: the water inlet (21) is penetrated on the upper portion of the impeller (31) and is positioned in the inner cavity of the water outlet component (2), the lower portion of the impeller (31) is positioned in the guide seat (4), a motor (32) for driving the impeller (31) to rotate is arranged at the bottom of the box body (1), a shaft hole (310) which is axially arranged is formed in the middle of the impeller (31), and an output shaft (321) of the motor (32) is connected with the shaft hole (310).

12. The cleaning machine according to claim 1 or 2, characterized in that: the radial dimension ratio of the radial dimension of the first upper section (3123) to the radial dimension of the first lower section (3124) of the second blade (3122) is 1-5.

13. The cleaning machine of any one of claims 5-9, wherein: the radial dimension ratio of the radial dimension of the second upper section (3123 ') to the radial dimension of the second lower section (3124') of the first blade is 1-5.

14. The cleaning machine of any one of claims 5-9, wherein: the ratio of the radial dimension of the second upper section (3123') of the first blade to the radial dimension of the first upper section (3123) of the second blade (3122) is 0.3-0.9.