CN109589068B

CN109589068B - Cleaning machine

Info

Publication number: CN109589068B
Application number: CN201710914777.2A
Authority: CN
Inventors: 毛文超; 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: 2017-09-30
Filing date: 2017-09-30
Publication date: 2024-01-16
Anticipated expiration: 2037-09-30
Also published as: CN109589068A

Abstract

The invention relates to a cleaning machine, which comprises a box body and a spray arm, wherein the box body is provided with a washing cavity, the spray arm is arranged in the washing cavity, the spray arm is hollow to form a water storage cavity, and a water inlet and a water outlet which are communicated with the water storage cavity are formed in the spray arm, and the cleaning machine is characterized in that: and a bubbler which can enable bubbles to be entrained in the sprayed water flow is arranged in the water outlet hole. The bubbler is arranged at the water outlet of the spray arm, and the water outlet of the spray arm is in direct contact with air or is in contact with water carrying a large number of bubbles in the washing cavity, so that cavitation can be generated between the bubbler and the contacted air when water flow in the spray arm is sprayed out, bubbles are entrained in the sprayed water flow, and when the water flow mixed with the bubbles sprays to dishes, the bubbles in the water flow contact with the dishes to break and generate larger impact force, so that stubborn dirt on the dishes or vegetables and fruits is dispersed, and a better cleaning effect is achieved.

Description

Cleaning machine

Technical Field

The invention relates to the technical field of dish washing machines, in particular to a cleaning machine capable of enabling bubbles to be entrained in sprayed water flow.

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 and spray arm, the box has the washing chamber, the spray arm is located in this washing chamber, thereby the inside cavity of spray arm forms the water storage chamber, water inlet and the apopore that are linked together with this water storage chamber have been seted up on the spray arm, its characterized in that: and a bubbler which can enable bubbles to be entrained in the sprayed water flow is arranged in the water outlet hole.

In the above aspect, the bubbler includes a cylindrical body and a bubbling net provided in the body. The water flow in the spray arm is contacted with the gas when being sprayed out from the water outlet hole, so that bubbles are generated through the foaming net, bubbles are entrained in the water flow sprayed to the cleaned object, and the cleaning effect is improved.

Preferably, the foam net at least comprises a first net layer and a second net layer which are arranged at intervals up and down, the first net layer is formed by mutually staggered weaving of straight lines which are arranged transversely and wave lines which are arranged longitudinally, and the second net layer is provided with a plurality of foam holes which are arranged at intervals to form a honeycomb panel. This configuration provides better conditions for entraining bubbles in the water stream so as to generate more bubbles.

Preferably, a top cover is arranged at the top of the body, and an injection hole with the inner diameter smaller than that of the body is formed in the top cover. The structure can sharply reduce the sectional area of the water flow outlet, which is beneficial to improving the flow velocity of the sprayed water flow.

In each scheme, the cleaning machine further comprises a power assembly capable of pumping water in the washing cavity into the spray arm, the power assembly comprises a motor and a first impeller, the motor is arranged on the outer side of the box body and is positioned at the bottom of the box body, the first impeller is arranged above the motor, the upper portion of the first impeller stretches into the water storage cavity of the spray arm, and an output shaft of the motor is vertically arranged and connected with the first impeller.

As an improvement, the cleaning machine also comprises an active air-adding mechanism, the active air-adding mechanism comprises an air pump and an air duct, the air pump is arranged on the outer side of the box body, the air inlet end of the air duct is connected with the air pump, and the air outlet end of the air duct is directly or indirectly connected with the water storage cavity of the spray arm. The active air-entrapping mechanism can directly air into the spray arm, so that bubbles are entrained in sprayed water flow, the entrained bubbles can be separated into a plurality of small bubbles by the foaming net when passing through the bubbler, the sprayed water flow has large bubble entrainment amount and small bubble volume, the bubbles are prevented from being broken when not reaching the surface of a cleaned object, and the impact capability of the water flow on the cleaned object is improved.

Preferably, the output shaft of the motor is hollow so as to form an air guide channel, the air inlet end of the air guide channel is connected with the air outlet end of the air guide pipe, and the air outlet end of the air guide channel passes through the first impeller and is positioned in the water storage cavity of the spray arm. The invention utilizes the output shaft of the motor to carry out gas delivery, thereby greatly saving the assembly space, and enabling the gas outlet end to be positioned at the center of the first impeller, so that the gas can be stirred and crushed for the first time under the rotation of the first impeller as soon as entering the spray arm, and the gas can be quickly fused into water flow.

Preferably, the water storage cavity comprises a water collection cavity and flow channels, the water collection cavity is arranged at the central part of the spray arm and is communicated with the water inlet, the number of the flow channels is two, the two flow channels extend from two sides of the water collection cavity along the length direction of the spray arm respectively, and the upper part of the first impeller is positioned in the water collection cavity. By adopting the structure, the centrifugal motion of the first impeller enables water to diffuse to the periphery and be delivered to the water outlet hole through the flow channel for being sprayed out, so that gas at the center of the top of the first impeller can be quickly fused into the water flow.

Preferably, the inner top wall of the spray arm extends downwards to form a spherical surface part protruding towards the direction of the air outlet end of the motor output shaft, the first impeller comprises a central shaft and a plurality of blades arranged on the outer peripheral surface of the central shaft at intervals, the upper end surfaces of the blades are shaped into cambered surfaces arched upwards, the cambered surfaces of the blades are arranged around the circumference of the spherical surface part, and the air outlet end of the motor output shaft is lower than the upper end surfaces of the blades. The matching structure of the spherical surface part and the cambered surface is arranged, so that the pressure intensity of the middle part of the first impeller is reduced when the first impeller centrifugally rotates, suction force is generated, the adding speed of gas is accelerated, the gas outlet end of the motor output shaft is lower than the upper end surface of the blade, the gas can be ensured to be fully stirred by the first blade in the dispersing process, and bubbles with small volume and large quantity are formed in water flow as much as possible.

And the joint of the water collection cavity and the runner forms a throat part of the spray arm, a second impeller for stirring water flow is arranged on the inner wall of the spray arm, the second impeller is close to the throat part, and the water outlet holes are all positioned at the downstream of the second impeller according to the water flow direction. By means of the structure, water can be stirred before being conveyed to the water outlet, so that gas is mixed more uniformly in the water flow, bubbles with smaller bodies and more quantity exist, and the impact on the cleaned object is enhanced.

Compared with the prior art, the invention has the advantages that: the bubbler is arranged at the water outlet of the spray arm, and the water outlet of the spray arm is in direct contact with air or is in contact with water carrying a large number of bubbles in the washing cavity, so that cavitation can be generated between the bubbler and the contacted air when water flow in the spray arm is sprayed out, bubbles are entrained in the sprayed water flow, and when the water flow mixed with the bubbles sprays to dishes, the bubbles in the water flow contact with the dishes to break and generate larger impact force, so that stubborn dirt on the dishes or vegetables and fruits is dispersed, and a better cleaning effect is achieved.

Drawings

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

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic view of the bubbler of FIG. 2;

FIG. 4 is a schematic diagram of an assembly structure of a spray arm and a power assembly, and an active air entrainment mechanism in an embodiment of the present invention;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a schematic view of an assembled structure of a spray arm and a first impeller according to an embodiment of the present invention;

fig. 7 is an exploded view of fig. 6.

Detailed Description

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

As shown in fig. 1 to 7, the cleaning machine of the present embodiment includes a box 1, a spray arm 2, a power assembly 3 and an active air-entraining structure 4, the box 1 has a cleaning chamber 10, and the spray arm 2 is rotatably disposed in the cleaning chamber 10 and is located at the bottom of the cleaning chamber 10. The spray arm 2 of this embodiment is formed by combining an upper shell 28 and a lower shell 29, the spray arm 2 is hollow to form a water storage cavity 20, and a water inlet 21 and a water outlet 22 which are communicated with the water storage cavity 20 are formed in the spray arm 2. The power assembly 3 is arranged below the spray arm 2 and is used for pumping water in the washing cavity 10 into the water storage cavity 20 of the spray arm 2.

In this embodiment, a bubbler 5 is provided in the water outlet 22 to entrain bubbles in the ejected water flow. Specifically, the bubbler 5 comprises a cylindrical body 51 and a bubbling net provided in the body 51. The foam net at least comprises a first net layer 52 and a second net layer 53 which are arranged at intervals up and down, the first net layer 52 is formed by mutually interweaving a plurality of straight lines 521 which are transversely and parallelly arranged and a plurality of wave lines 522 which are longitudinally arranged, and the braiding modes can be various. The second mesh layer 53 has a plurality of foam holes 531 thereon, and the plurality of foam holes 531 are arranged at intervals to form a honeycomb panel. The top of the body 51 is provided with a top cover 54, and the top cover 54 is provided with an injection hole 541 having an inner diameter smaller than that of the body 51, so that the sectional area of the water flow outlet is rapidly reduced, which is beneficial to improving the flow rate of the injected water flow.

The active aeration structure 4 in this embodiment is used to directly add gas to the water storage chamber 20 of the spray arm 2. The power assembly 3 comprises a motor 31 and a first impeller 32, the motor 31 is arranged on the outer side of the box body 1 and is positioned at the bottom of the box body 1, the first impeller 32 is arranged above the motor 31, the upper part of the first impeller 32 stretches into the water storage cavity 20 of the spray arm 2, and an output shaft 311 of the motor 31 is vertically arranged and connected with the first impeller 32. The active air-adding mechanism 4 comprises an air pump 41 and an air guide pipe 42, the air pump 41 is arranged on the outer side of the box body 1, the air inlet end of the air guide pipe 42 is connected with the air pump 41, the output shaft 311 of the motor 31 is hollow to form an air guide channel 312, the air inlet end of the air guide channel 312 is connected with the air outlet end of the air guide pipe 42, and the air outlet end of the air guide channel 312 penetrates through the first impeller 31 and is positioned in the water storage cavity 20 of the spray arm 2.

The water storage cavity 20 of the spray arm 2 in this embodiment includes a water collection cavity 201 and a flow channel 202, the water collection cavity 201 is disposed at the central portion of the spray arm 2 and is communicated with the water inlet 21, the flow channel 202 is two and extends from two sides of the water collection cavity 201 to two sides along the length direction of the spray arm 2, and the upper portion of the first impeller 32 is disposed in the water collection cavity 201. With the adoption of the structure, the centrifugal motion of the first impeller 32 makes water diffuse around and be delivered to the water outlet 22 through the flow channel for being sprayed out, so that gas at the center of the top of the first impeller 32 can be quickly mixed into the water flow. The inner top wall of the spray arm 2 is extended downward to form a spherical surface portion 23 protruding toward the air outlet end of the output shaft 311 of the motor 31, the first impeller 32 includes a central shaft 321 and a plurality of blades 322 spaced on the outer circumferential surface of the central shaft 321, the upper end surfaces of the blades 322 are formed into upwardly arched surface 323, the cambered surfaces 323 of the blades 322 are arranged around the circumference of the spherical surface portion 23, and the air outlet end of the output shaft 311 of the motor is lower than the upper end surfaces of the blades 322. The matching structure of the spherical surface part 23 and the cambered surface 322 is arranged, so that the pressure intensity of the middle part of the first impeller 32 is reduced when the first impeller 32 centrifugally rotates, suction force is generated, the adding speed of gas is accelerated, the gas outlet end of the motor output shaft 311 is lower than the upper end surface of the blade 322, the gas can be ensured to be fully stirred by the first blade 322 in the dispersing process, and bubbles with small volume and large quantity are formed in water flow as much as possible. The junction of the water collection cavity 201 and the runner 202 forms a throat part 203 of the spray arm 2, a second impeller 6 for stirring water flow is arranged on the inner wall of the spray arm 2, the second impeller 6 is arranged close to the throat part 203, and the water outlet holes 22 are all positioned at the downstream of the second impeller 6 according to the water flow direction. This structure is provided to agitate the water flow before it is delivered to the water outlet hole 22, so that the gas is more uniformly mixed in the water flow, and the air bubbles exist in a smaller quantity, thereby enhancing the impact on the object to be cleaned.

The cleaning machine of this embodiment utilizes active air entrainment mechanism 4 to the air entrainment in spray arm 2 first to mix the bubble form with the air bubble in the rivers through the rotation of first impeller 32, then smash the bubble in the rivers through second impeller 6, reduce bubble volume, increase bubble water yield, at last the bubble volume that still exists is separated to the time of water jet again to the time of utilizing bubbler 5, and form passive air entrainment effect simultaneously, produce more bubbles, and the bubble that the passive air entrainment formed often volume can be greater than the bubble that exists before, carry a large amount of bubbles that have not the same size in the messenger's spun rivers, when the bubble that mingles with has the rivers to spout to the bowl dish, bubble in the rivers contacts the bowl dish and takes place to break and produce great impact force, thereby wash away the intractable filth that exists on bowl dish or the vegetables and fruits, reach better cleaning effect.

Claims

1. The utility model provides a cleaning machine, includes box (1) and spray arm (2), box (1) has washing chamber (10), in this washing chamber (10) are located to spray arm (2), thereby spray arm (2) inside cavity forms water storage chamber (20), water inlet (21) and apopore (22) that are linked together with this water storage chamber (20) are seted up on spray arm (2), its characterized in that: a bubbler (5) which can enable bubbles to be entrained in the sprayed water flow is arranged in the water outlet hole (22);

the bubbler (5) comprises a cylindrical body (51) and a bubbling net arranged in the body (51);

the foaming net at least comprises a first net layer (52) and a second net layer (53) which are arranged at intervals up and down, wherein the first net layer (52) is formed by mutually interweaving straight lines (521) which are arranged transversely and wavy lines (522) which are arranged longitudinally, and the second net layer (53) is provided with a plurality of foaming holes (531) and a plurality of foaming holes (531) which are arranged at intervals to form a honeycomb panel;

the washing machine also comprises a power assembly (3) capable of pumping water in the washing cavity (10) into the spray arm (2), wherein the power assembly (3) comprises a motor (31) and a first impeller (32);

the top of the body (51) is provided with a top cover (54), and the top cover (54) is provided with an injection hole (541) with the inner diameter smaller than that of the body (51); the inner top wall of the spray arm (2) extends downwards to form a spherical surface part (23) protruding towards the air outlet end direction of an output shaft (311) of the motor (31), the first impeller (32) comprises a central shaft (321) and a plurality of blades (322) arranged on the outer circumferential surface of the central shaft (321) at intervals, the upper end surfaces of the blades (322) are formed into upwardly arched cambered surfaces (323), the cambered surfaces (323) of the blades (322) are circumferentially arranged around the spherical surface part (23), and the air outlet end of the output shaft (311) of the motor (31) is lower than the upper end surfaces of the blades (322).

2. The cleaning machine of claim 1, wherein: the motor (31) is arranged on the outer side of the box body (1) and is positioned at the bottom of the box body (1), the first impeller (32) is arranged above the motor (31) and the upper part of the first impeller extends into the water storage cavity (20) of the spray arm (2), and an output shaft (311) of the motor (31) is vertically arranged and connected with the first impeller (32).

3. The cleaning machine of claim 2, wherein: the air-filling device comprises a box body (1), and is characterized by further comprising an active air-filling mechanism (4), wherein the active air-filling mechanism (4) comprises an air pump (41) and an air duct (42), the air pump (41) is arranged on the outer side of the box body (1), the air inlet end of the air duct (42) is connected with the air pump (41), and the air outlet end of the air duct (42) is directly or indirectly connected with a water storage cavity (20) of the spray arm (2).

4. A cleaning machine as claimed in claim 3, wherein: the output shaft (311) of the motor (31) is hollow to form an air guide channel (312), the air inlet end of the air guide channel (312) is connected with the air outlet end of the air guide pipe (42), and the air outlet end of the air guide channel (312) passes through the first impeller (32) and is positioned in the water storage cavity (20) of the spray arm (2).

5. The cleaning machine of claim 4, wherein: the water storage cavity (20) comprises a water collection cavity (201) and a flow channel (202), the water collection cavity (201) is arranged at the central part of the spray arm (2) and is communicated with the water inlet (21), the number of the flow channels (202) is two, the two flow channels respectively extend from two sides of the water collection cavity (201) along the length direction of the spray arm (2), and the upper part of the first impeller (32) is positioned in the water collection cavity (201).

6. The cleaning machine of claim 5, wherein: the junction of catchment chamber (201) and runner (202) forms throat position (203) of spray arm (2), be provided with on the inner wall of spray arm (2) and be used for stirring second impeller (6) of rivers, this second impeller (6) are close to throat position (203) is arranged, and according to the rivers direction, apopore (22) all are located the low reaches of second impeller (6).