CN109394108B

CN109394108B - Cleaning machine

Info

Publication number: CN109394108B
Application number: CN201710712879.6A
Authority: CN
Inventors: 王栋; 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: CN109394108A

Abstract

The invention relates to a cleaning machine, which comprises a box body, a spray arm and a power assembly capable of pumping water in the box body into the spray arm, wherein the power assembly at least comprises a pump shell and a first impeller, a flow channel for circularly conveying fluid is arranged in the pump shell, the first impeller is arranged in the flow channel and provides power for conveying the fluid, the cleaning machine further comprises an air-adding structure capable of adding gas into water flow in the pump shell, an outlet end of the air-adding structure is positioned in the flow channel, and an outlet end of the air-adding structure is positioned at the upstream of the first impeller according to the flow direction of the water flow. When gas is added into water flow, larger bubbles exist, and the bubbles are too large to influence the cleaning effect.

Description

Cleaning machine

Technical Field

The present invention relates to a cleaning machine, and more particularly, to a cleaning machine capable of generating bubbles in a fluid to thereby enhance a 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. The Chinese patent with the application number of 201610795828.X, namely a large-scale ultrasonic automatic dish washer, is provided with an ultrasonic emission head device, high-pressure air is input into a cleaning liquid at the same time, the input high-pressure air forms bubbles in the cleaning liquid by utilizing the ultrasonic emission head device, and an ultrasonic transducer is used for providing energy for the cleaning liquid, so that the bubbles in the cleaning liquid are broken to generate impact force, and the impact force of water flow is improved. However, in such a structure, the instantaneous cavitation phenomenon generated between the ultrasonic wave and the high-pressure air bubbles needs to be maintained in water, and when the water flow is lifted by the water pump and is circularly sprayed out, the high-pressure air bubbles are difficult to reach the surfaces of the dishes, and then break, so that the structure is not suitable for the structure of the water flow spraying type dish washing machine. In addition, the structure is only suitable for large-scale dish washers, and is difficult to be suitable for household dish washers.

Disclosure of Invention

The invention aims to solve the technical problem of providing a cleaning machine which can increase the impact strength on an object to be cleaned by forming bubbles in water flow so as to improve the cleaning effect.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a cleaning machine, includes box, spray arm and can be with the power pack in the water pump income spray arm in the box, the spray arm is located in the box, power pack locates the spray arm below and including pump case and first impeller at least, the pump case is connected with the spray arm, have the runner that is used for the circulation to carry fluid in the pump case, first impeller locates in this runner and provides power for the transportation of fluid, its characterized in that: the air-entrapping device further comprises an air-entrapping structure capable of adding air into the water flow of the pump shell, wherein the outlet end of the air-entrapping structure is positioned in the flow channel, and the outlet end of the air-entrapping structure is positioned at the upstream of the first impeller according to the flow direction of the water flow.

The spray arm can be rotationally arranged in the box body and is positioned at the bottom of the box body.

As an improvement, a second impeller is also arranged in the flow channel, which second impeller is arranged close to the end of the flow channel. The second impeller is arranged, so that the second impeller can be utilized to stir the water to become a plurality of smaller bubbles before the water flows out of the flow channel, the volume of the bubbles is reduced, the number of the bubbles is increased, and the better cleaning effect is achieved.

In order to facilitate installation, the bottom of the box body is provided with an installation opening, the pump shell is arranged below the box body, the top of the pump shell is provided with a containing cavity which can be connected with the installation opening and is used for collecting water, and the first impeller can pump water in the containing cavity into the spray arm under the driving of the power piece.

In the above scheme, the bottom edge of holding chamber upwards extends and is formed with first step, the edge of first step upwards extends and is formed with the second step, bottom one side of holding chamber is connected with the drainage channel, one side of first step is formed with the first runner that is linked together with the holding chamber, be provided with the adapter sleeve that is linked together with the water inlet of spray arm on the second step, the lower extreme of this adapter sleeve is connected with the second runner, and this second runner with first runner is linked together, first impeller locates in the first runner and is arranged in the water in the holding chamber through the second runner pump spray arm in.

Preferably, according to the fluid flowing direction, the tail end of the first runner is connected with the front end of the second runner, and the first impeller is arranged at the tail end of the first runner and is connected with the power piece.

And in addition, a spacer is arranged in the second flow channel, the spacer divides the second flow channel into an upstream flow channel and a downstream flow channel which are mutually communicated, the front end of the upstream flow channel is connected with the tail end of the first flow channel, and the downstream flow channel is separated from the first flow channel and is connected with the connecting sleeve. The outlet end of the air-entrapping structure is positioned in the middle of the first flow channel, and the second impeller is arranged in the downstream flow channel of the second flow channel.

Preferably, the air-adding structure comprises an air pump and an air duct, wherein the air pump is arranged on one side of the pump shell, and a through hole connected with the air duct is formed in the pump shell.

In each of the above schemes, the top of the accommodating cavity is covered with a draining plate with draining holes.

In order to facilitate connection and assembly, the spray arm is connected to the connecting sleeve through an assembly sleeve, the lower part of the assembly sleeve is inserted into the connecting sleeve, and the upper part of the assembly sleeve is rotationally connected with the spray arm. The water inlet edge of the spray arm extends downwards to form a plug-in part which can be rotationally plugged in the assembly sleeve, the lower surface of the spray arm is also provided with an elastic clamping foot positioned at the periphery of the plug-in part, and correspondingly, the periphery of the assembly sleeve is provided with a limit ring which can be rotationally clamped with the elastic clamping foot.

As an improvement, the first impeller comprises a disc-shaped body and blades arranged on the body, the blades comprise a first blade and a second blade, and the thickness of the first blade is larger than that of the second blade. The blades are spirally arranged on the inner side surface of the body by taking the axis of the impeller as the center, and two second blades are arranged between two adjacent first blades. The impeller with the structure can enable the water flow to generate a certain pulse effect, and is beneficial to strengthening the bubble effect.

Compared with the prior art, the invention has the advantages that: the invention sets the air-adding structure which can add the air into the water flow of the pump shell, the outlet end of the air-adding structure is positioned in the flow channel, and the outlet end of the air-adding structure is positioned at the upstream of the first impeller according to the flow direction of the water flow, when the air is added into the water flow, bigger bubbles exist, and the bubbles greatly influence the cleaning effect.

Drawings

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

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

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic view of a pump housing according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an assembled pump housing and an air entrainment structure according to an embodiment of the invention;

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

Detailed Description

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

As shown in fig. 1 to 6, the cleaning machine of the present embodiment includes a box 1, a spray arm 2, a power assembly 3 capable of pumping water in the box 1 into the spray arm 2, and an air-adding structure 4 capable of adding air into water flow, wherein the spray arm 2 is disposed in the box 1, a water inlet 211 is disposed at the bottom of the spray arm 2, a water outlet 212 is disposed at the top of the spray arm, and the power assembly 3 is disposed below the spray arm 2.

In the present embodiment, the power assembly 3 includes a pump housing 31 and a first impeller 32, the pump housing 31 is connected to the shower arm 2, a flow passage for circulating and conveying fluid is provided in the pump housing 31, and the first impeller 32 is provided in the flow passage and provides power for conveying the fluid. The outlet end of the air entrainment structure 4 is located in the flow passage and, in terms of the direction of flow of the water, the outlet end of the air entrainment structure 4 is located upstream of the first impeller 32. The flow passage is also provided with a second impeller 5, the second impeller 5 can be connected in the flow passage through a rotating shaft and can rotate under the impact of water flow, and the second impeller 5 is arranged near the tail end of the flow passage. The second impeller provided by the invention can be used for crushing the water before the water flows out of the flow channel into a plurality of smaller bubbles, so that the volume of the bubbles is reduced, the number of the bubbles is increased, and a better cleaning effect is achieved.

Specifically, the bottom of the box 1 is provided with a mounting opening 11, the pump casing 31 is disposed below the box 1, a containing cavity 311 capable of being connected with the mounting opening 11 and collecting water is formed at the top of the pump casing 31, and the first impeller 32 can pump water in the containing cavity 311 into the spray arm 2 under the driving of a power part (the power part of this embodiment may be a motor disposed outside the pump casing 31 and connected with the first impeller 32). The first impeller 32 comprises a disc-shaped body 321 and blades arranged on the body 321, wherein the blades comprise a first blade 322 and a second blade 323, and the thickness of the first blade 322 is larger than that of the second blade 323. The blades are spirally arranged on the inner side surface of the body 321 with the axis of the impeller 32 as the center, and two second blades 323 are arranged between two adjacent first blades 322. The impeller 32 structure can generate a certain pulse action on the water flow, which is beneficial to the generation of bubbles. The bottom edge of the accommodating cavity 311 extends upwards to form a first step 312, the edge of the first step 312 extends upwards to form a second step 313, one side of the bottom of the accommodating cavity 311 is connected with a drainage channel 314, one side of the first step 312 is formed with a first runner 315 communicated with the accommodating cavity 311, the second step 313 is provided with a connecting sleeve 316 communicated with a water inlet 211 of the spray arm 2, the lower end of the connecting sleeve 316 is connected with a second runner 317, the second runner 317 is communicated with the first runner 315, and the first impeller 32 is arranged in the first runner 315 and is used for pumping water in the accommodating cavity 311 into the spray arm 2 through the second runner 317. The end of the first flow path 315 is connected to the front end of the second flow path 317 in terms of the direction of fluid flow, and the first impeller 32 is provided at the end of the first flow path 315 and connected to the power member. The second flow path 317 is provided with a spacer 3171, and the spacer 3171 divides the second flow path 317 into an upstream flow path 3172 and a downstream flow path 3173 which are communicated with each other, the front end of the upstream flow path 3172 is connected to the end of the first flow path 315, and the downstream flow path 3173 is isolated from the first flow path 315 and connected to the connecting sleeve 316. The outlet end of the air-entraining structure 4 is located in the middle of the first flow channel 315 and the second impeller 5 is located in the downstream flow channel 3173 of the second flow channel 317.

The air-adding structure 4 of the present embodiment includes an air pump 41 and an air duct 42, the air pump 41 is disposed on one side of the pump housing 31, and a through hole connected with the air duct 42 is formed in the pump housing 31. The top of the receiving chamber 311 is covered with a drain plate 12 having drain holes 121. In order to facilitate connection and assembly, the spray arm 2 is connected to the connecting sleeve 316 through the assembly sleeve 7, the lower part of the assembly sleeve 7 is inserted into the connecting sleeve 316, and the upper part of the assembly sleeve 7 is rotatably connected with the spray arm 2. The edge of the water inlet 211 of the spray arm 2 extends downwards to form a plug-in part 22 which can be rotationally plugged in the assembly sleeve 7, the lower surface of the spray arm 2 is also provided with an elastic clamping foot 23 positioned at the periphery of the plug-in part 22, and correspondingly, the periphery of the assembly sleeve 7 is provided with a limit ring 71 which can be rotationally clamped with the elastic clamping foot 23.

The embodiment sets up the air entrainment structure 4 that can add gas to the rivers of pump case 31, the exit end of air entrainment structure 4 is located first runner 315, and, according to the rivers flow direction, the exit end of air entrainment structure 4 is located the upper reaches of first impeller 32, when gas adds in the rivers, can exist with great bubble, and the bubble is too big influence cleaning performance, this embodiment sets up the end of air entrainment structure 4 at first impeller 32 upper reaches, can utilize first impeller 32 to stir the bubble for the first time, carry the back through second impeller 5 to stir the bubble again, make the bubble volume that mingles with in the rivers diminish, quantity grow, when the bubble that mingles with has the rivers to spout to the bowl dish, the bubble in the rivers contacts the bowl dish and breaks and produce great impact force, thereby exist the intractable filth on bowl dish or the vegetables and fruits and break away, reach better cleaning performance.

Claims

1. The utility model provides a cleaning machine, includes box (1), spray arm (2) and can be with the power pack (3) in the water pump in box (1) income spray arm (2), in spray arm (2) are located box (1), power pack (3) are located spray arm (2) below and are including pump case (31) and first impeller (32) at least, pump case (31) are connected with spray arm (2), have the runner that is used for the circulation to carry fluid in pump case (31), first impeller (32) are located in this runner and provide power for the transportation of fluid, its characterized in that: the air-entrapping device further comprises an air-entrapping structure (4) capable of adding air into the water flow of the pump shell (31), wherein the outlet end of the air-entrapping structure (4) is positioned in the flow channel, and the outlet end of the air-entrapping structure (4) is positioned at the upstream of the first impeller (32) according to the flow direction of the water flow;

a second impeller (5) is further arranged in the flow passage, and the second impeller (5) is arranged close to the tail end of the flow passage; the air-entrapping structure (4) comprises an air pump (41) and an air duct (42), wherein the air pump (41) is arranged on one side of the pump shell (31), and a through hole connected with the air duct (42) is formed in the pump shell (31).

2. The cleaning machine of claim 1, wherein: the bottom of box (1) has seted up installing port (11), pump case (31) are located box (1) below, and the top of this pump case (31) is formed with can be connected with installing port (11) and is used for holding chamber (311) of water catch, first impeller (32) can be under the drive of power spare with the water pump in holding chamber (311) in spray arm (2).

3. The cleaning machine of claim 2, wherein: the bottom edge of holding chamber (311) upwards extends and is formed with first step (312), the edge of first step (312) upwards extends and is formed with second step (313), bottom one side of holding chamber (311) is connected with drainage channel (314), one side of first step (312) is formed with first runner (315) that are linked together with holding chamber (311), be provided with on second step (313) with spray arm (2) water inlet (211) adapter sleeve (316) that are linked together, the lower extreme of adapter sleeve (316) is connected with second runner (317), and this second runner (317) with first runner (315) are linked together, first impeller (32) are located in first runner (315) and are used for in the water in holding chamber (311) pumps into spray arm (2) through second runner (317).

4. A cleaning machine as claimed in claim 3, wherein: according to the fluid flow direction, the tail end of the first flow channel (315) is connected with the front end of the second flow channel (317), and the first impeller (32) is arranged at the tail end of the first flow channel (315) and is connected with the power part.

5. A cleaning machine as claimed in claim 3, wherein: the second flow channel (317) is provided with a spacer (3171), the spacer (3171) divides the second flow channel (317) into an upstream flow channel (3172) and a downstream flow channel (3173) which are communicated with each other, the front end of the upstream flow channel (3172) is connected with the tail end of the first flow channel (315), and the downstream flow channel (3173) is separated from the first flow channel (315) and is connected with the connecting sleeve (316).

6. The cleaning machine of claim 5, wherein: the outlet end of the air-entrapping structure (4) is located in the middle of the first flow channel (315), and the second impeller (5) is arranged in a downstream flow channel (3173) of the second flow channel (317).

7. A cleaning machine as claimed in claim 3, wherein: the top of the accommodating cavity (311) is covered with a draining plate (12) with draining holes (121).

8. A cleaning machine as claimed in claim 3, wherein: the spray arm (2) is connected to the connecting sleeve (316) through the assembling sleeve (7), the lower part of the assembling sleeve (7) is inserted into the connecting sleeve (316), and the upper part of the assembling sleeve (7) is rotationally connected with the spray arm (2).

9. A cleaning machine as claimed in claim 3, wherein: the first impeller (32) comprises a disc-shaped body (321) and blades arranged on the body (321), the blades comprise a first blade (322) and a second blade (323), and the thickness of the first blade (322) is larger than that of the second blade (323).

10. The cleaning machine of claim 9, wherein: the blades are spirally arranged on the inner side surface of the body (321) by taking the axle center of the first impeller (32) as the center, and two second blades (323) are arranged between two adjacent first blades (322).