CN112806940B - Cleaning machine with drying function and cleaning method - Google Patents

Abstract

The invention relates to a cleaning machine with a drying function, which comprises a water tank body and a heating plate, wherein a washing cavity is formed in the water tank body in a hollow mode, the heating plate is arranged on the bottom wall of the water tank body and used for heating water at the bottom of the washing cavity, a heat collection cavity extending downwards around the outer edge of the heating plate is arranged on the bottom wall of the water tank body, a flow guide piece capable of intensively guiding hot air is arranged in the heat collection cavity, and an air guide structure capable of conveying the hot air in the flow guide piece into the washing cavity is arranged on the bottom wall of the water tank body in a penetrating mode; and an exhaust port for outputting water vapor is formed in the side wall of the water tank body. According to the invention, the heat collecting cavity capable of collecting heat is arranged at the bottom of the heating plate, and after washing is finished, hot air in the heat collecting cavity can be conveyed into the washing cavity through the hollow motor output shaft by the guide part, so that dishes can be quickly dried, the dryness of the inside of the washing cavity and the dishes is kept, and the growth of bacteria is avoided.

Description

Cleaning machine with drying function and cleaning method

Technical Field

The invention relates to a cleaning machine with a drying function and a cleaning method.

Background

A dishwasher is an apparatus that sprays cold or hot water to dishes to remove dirt adhered to the dishes and wash the dishes. Dishes are placed in a dish frame inside a dish washing cabinet, and a general dish washing machine includes a pump and a spray head to spray washing water, a heater to generate hot water, and the like. Such a dishwasher usually requires a separate housing and separate components, so that the general dishwasher is large in volume and is not suitable for being used in some families with large population and small living area, and thus the dishwasher is not common in many families.

In order to save space and expand the application range, many designs of water tank type cleaning machines have been developed, that is, the existing water tank is modified into a cleaning machine, the water tank is directly used as a washing space, and a rotary spray arm is generally arranged at the bottom of the water tank and is generally connected with a pump body driven by a motor. The water tank type cleaning machine comprises a box body forming a washing space, the box body comprises a water tank body and a cover plate which is rotatably connected to the water tank body, the bottom of the water tank body is at least provided with a concave draining area at the central part, a water pump for pumping water in the draining area to the washing space above the draining area is arranged in the draining area, the draining area is covered with a draining plate with draining holes, a rotary spray arm for pumping water out of the water pump is arranged above the draining plate, and a heater is further arranged in the draining area.

The above-mentioned washing machines generally perform at least two washing operations for washing dishes, at least one of which is performed using hot water. This just leads to remaining in the washing chamber after finishing washing to have a large amount of vapor, and the vapor can gather on the tableware surface after the condensation, and the user experience is felt not only to the influence of water drenching, and has bacterial growing easily.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a washing machine with drying function, which can quickly dry the tableware in the washing chamber after the washing is finished, in view of the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a method for cleaning a cleaning machine with drying function, which is used for quickly drying tableware in a washing chamber after cleaning, so as to avoid bacteria breeding in the washing chamber and improve the cleaning effect.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a cleaning machine of area stoving function, includes basin body and heating plate, the inside cavity of basin body forms the washing chamber, the heating plate is located on the diapire of basin body and is used for heating the water of washing chamber bottom, its characterized in that: a heat collecting cavity extending downwards around the outer edge of the heating disc is arranged on the bottom wall of the water tank body, a flow guide piece capable of intensively guiding hot air is arranged in the heat collecting cavity, and an air guide structure capable of conveying the hot air in the flow guide piece into the washing cavity is arranged on the bottom wall of the water tank body in a penetrating manner; and an exhaust port for outputting water vapor is formed in the side wall of the water tank body.

Preferably, the air guide structure comprises a motor and an impeller, the motor is arranged below the heat collection cavity, an output shaft of the motor is arranged upwards, the output shaft of the motor penetrates through the flow guide piece and the bottom wall of the water tank body and extends into the washing cavity, the impeller is arranged in the washing cavity and connected to the output shaft of the motor, and at least the upper part of the output shaft of the motor is hollow to form an air guide channel communicated with the flow guide piece. By adopting the structure, the hot air collected below the heating plate can be conveniently and continuously input into the washing cavity to dry the dishes.

Preferably, the gas guide channel is provided therein with a one-way valve which only allows gas to pass from the gas guide channel into the washing chamber, while preventing water from passing from the washing chamber into the gas guide channel. So as to avoid the leakage of the water in the washing cavity into the air guide channel in the washing state and the non-drying state.

In the above scheme, the check valve includes an upper valve sleeve, a lower valve sleeve, a valve core and an elastic member, the upper valve sleeve and the lower valve sleeve are both arranged in the air guide channel, a valve cavity for installing the valve core and the elastic member is formed between the lower end of the upper valve sleeve and the upper end of the lower valve sleeve, the lower portion of the valve core is formed into a conical structure capable of being inserted into an upper port of the lower valve sleeve, the upper portion of the valve core is provided with a step capable of abutting against the upper end face of the lower valve sleeve so as to seal the upper port of the lower valve sleeve, and the elastic member is arranged above the valve core and enables the valve core to always keep moving downwards so as to seal the upper port of the lower valve sleeve. In a washing state and a non-drying state, the motor does not operate, and the valve core seals the upper end port of the lower valve sleeve under the action of the elastic element, so that liquid leakage caused by the fact that water in the washing cavity enters the air guide channel is avoided; in the drying state, the motor operates to drive the impeller to rotate, negative pressure is formed above the air guide channel, the valve core overcomes the elasticity of the spring to move upwards, and the upper port of the lower valve sleeve is opened, so that air is conveyed into the washing cavity from bottom to top to dry the dishes.

As an improvement, a first blade extending along the radial direction is arranged on the inner wall of the upper part of the valve cavity, a second blade extending along the axial direction of the valve core in a spiral manner is arranged on the outer peripheral wall of the upper part of the valve core, and a ventilation opening for communicating the valve cavity and the washing cavity is formed in the position, corresponding to the second blade, of the side part of the output shaft of the motor. Because the motor can form the negative pressure in the air guide passageway during operation, consequently, partial gas in the washing chamber can be from ventilative mouthful entering valve chamber to impact the second blade and drive the case rotatory, simultaneously, first blade rotates along with the rotation of motor output shaft, carries out circumferential dispersion to gas, is favorable to increasing the negative pressure of case top, increases the ascending driving force to the case, thereby accelerates the speed that hot gas ascends.

In order to facilitate assembly, the upper part of the valve cavity is formed into a circular truncated cone-shaped structure with the inner diameter gradually reduced from bottom to top, the upper part of the valve core is provided with an accommodating cavity extending downwards from the upper end, and the elastic piece is a spring with the upper end abutting against the upper end of the circular truncated cone-shaped structure and the lower end abutting against the bottom wall of the accommodating cavity.

Preferably, the flow guide piece comprises a disc-shaped body and air guide rings sleeved in the body at intervals, the inside of the body is hollow to form an air guide cavity communicated along the circumferential direction, and a plurality of air guide holes for air to enter the air guide cavity from the heat collection cavity are arranged on the outer side wall of the body at intervals; the central part of the air guide ring is provided with an air outlet which is communicated up and down, and at least two air guide pipes which extend along the radial direction and communicate the air guide cavity with the air outlet are connected between the body and the air guide ring. The flow guide piece is made of thin metal materials, so that heated air can be conveyed into the air guide channel quickly, and heat loss is reduced.

In order to facilitate assembly, an annular mounting frame is arranged at the bottom of the heat collection cavity, the motor is fixed below the mounting frame, and a gap for supplementing gas into the heat collection cavity is formed between the edge of the top of the motor and the inner edge of the mounting frame.

Preferably, the flow guide piece is fixedly connected to the output shaft of the motor and synchronously rotates along with the output shaft of the motor, and the side wall of the output shaft of the motor is provided with an air inlet through which air enters the air guide channel from the air outlet. When the flow guide piece synchronously rotates along with the output shaft of the motor, because negative pressure is formed in the air guide channel and the negative pressure in the air guide cavity can be increased along with the rotation of the flow guide piece, hot air in the heat collection cavity can be sucked into the air guide channel and conveyed into the washing cavity, and the drying efficiency is improved.

Preferably, the impeller comprises a shaft sleeve sleeved outside the output shaft of the motor and blades arranged on the peripheral wall of the shaft sleeve, the lower parts of the blades are centrifugal structures extending along the radial direction, and the upper parts of the blades are axial flow structures spirally arranged along the axial direction. The centrifugal structure can disperse the hot air in the circumferential direction, and the axial flow structure can keep the hot air going upwards, so that the flow speed of the hot air in the washing cavity is accelerated, the drying effect is improved, and the drying dead angle is eliminated.

A cleaning method of the cleaning machine with the drying function is characterized in that:

the heating plate heats water at the bottom of the washing cavity, and a washing program is started to clean dishes in the washing cavity; during the cleaning process, the motor does not operate;

after the washing is finished, discharging the waste water in the washing cavity; the motor is started, the heating plate is kept in a heating mode, heated air in the heat collection cavity enters the air guide channel of the motor output shaft after being concentrated through the flow guide piece, the motor output shaft rotates to drive the impeller positioned in the washing cavity to rotate, so that negative pressure is formed above the air guide channel, hot air in the air guide channel is sucked into the washing cavity, dishes in the washing cavity are quickly dried, and air blown through the dishes carries water vapor to be discharged from the air outlet in the upper portion of the water tank body.

Compared with the prior art, the invention has the advantages that: according to the invention, the heat collecting cavity capable of collecting heat is arranged at the bottom of the heating plate, and after washing is finished, hot air in the heat collecting cavity can be conveyed into the washing cavity through the guide part and the hollow motor output shaft, so that dishes can be quickly dried, the dryness of the inside of the washing cavity and the dishes is kept, and the breeding of bacteria is avoided.

Drawings

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

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

FIG. 3 is a schematic view of an assembly structure of an air guide structure and a flow guide member according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of a check valve according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of the valve cartridge of FIG. 5;

FIG. 7 is a schematic view of the structure of a baffle member in an embodiment of the present invention;

fig. 8 is a cross-sectional view of fig. 7.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 8, the cleaning machine with drying function in this embodiment includes a water tank body 1, a spray arm, and a driving mechanism 7, wherein the interior of the water tank body 1 is hollow to form a washing chamber 11, the spray arm is rotatably disposed at the bottom of the washing chamber 11, the driving mechanism 7 is used for pumping water into the spray arm, and the structures and the matching manners of the spray arm and the driving mechanism 7 are the same as those of the water tank type cleaning machine in the prior application 201320889945.4 of the present applicant, and are not described herein again.

Be provided with on the diapire of above-mentioned basin body 1 and carry out the heating plate 2 that heats to the water of washing chamber 11 bottom, the diapire outside of basin body 1 is provided with the thermal-arrest chamber 3 around the edge downwardly extending of heating plate 2, be provided with in this thermal-arrest chamber 3 and carry out the water conservancy diversion spare 4 of concentrated guide to steam, wear to be equipped with on the diapire of basin body 1 and can be defeated the air guide structure 5 in the washing chamber 11 with the steam in the water conservancy diversion spare 4, the gas vent 12 that supplies steam output is opened on the upper portion of this 1 lateral wall of basin.

In this embodiment, as shown in fig. 4, the air guide structure 5 includes a motor 51 and an impeller 52, the motor 51 is disposed below the heat collecting cavity 3, the output shaft 511 of the motor 51 is disposed upward, the output shaft 511 passes through the air guide member 4 and the bottom wall of the sink body 1 and extends into the washing cavity 11, the impeller 52 is disposed in the washing cavity 11 and is connected to the motor output shaft 511, and an air guide channel 510 communicated with the air guide member 4 is formed in the upper portion of the motor output shaft 511, so as to continuously input the hot air collected below the heating plate 2 into the washing cavity 11 to dry the dishes.

As shown in fig. 4 to 6, the gas guide channel 510 is provided therein with a check valve 8 which allows only gas to enter the washing chamber 11 from the gas guide channel 510, and prevents water from entering the gas guide channel 510 from the washing chamber 11. So as to avoid the leakage of the water in the washing cavity into the air guide channel in the washing state and the non-drying state. The check valve 8 of the present embodiment includes an upper valve housing 81, a lower valve housing 82, a valve core 83 and an elastic member 84, the upper valve housing 81 and the lower valve housing 82 are both disposed in the air guide channel 510, a valve cavity 80 for installing the valve core 83 and the elastic member 84 is formed between the lower end of the upper valve housing 81 and the upper end of the lower valve housing 82, the lower portion of the valve core 83 is formed as a conical structure 831 capable of being inserted into the upper port of the lower valve housing 82, the upper portion of the valve core 83 has a step 832 capable of abutting against the upper end surface of the lower valve housing 82 to seal the upper port of the lower valve housing 82, and the elastic member 84 is disposed above the valve core 83 and keeps the valve core 83 moving downward all the time to seal the upper port of the lower valve housing 82. In the washing state and the non-drying state, the motor 51 is not operated, and the valve core 83 seals the upper port of the lower valve sleeve 82 under the action of the elastic member 84, so as to prevent the water in the washing chamber 11 from entering the air guide channel 510 to cause liquid leakage; in the drying state, the motor 51 operates to drive the impeller 52 to rotate, so that a negative pressure is formed above the air guide channel 510, the valve core 53 moves upwards against the elastic force of the spring, the upper port of the lower valve sleeve 52 is opened, and thus, air is conveyed into the washing chamber 11 from bottom to top to dry the dishes.

The inner wall of the upper part of the valve cavity 80 is provided with a first blade 811 extending along the radial direction, the outer peripheral wall of the upper part of the valve core 83 is provided with a second blade 833 spirally extending along the axial direction of the valve core 83, and the side part of the motor output shaft 511 is provided with a ventilation port 5111 corresponding to the second blade 833 for communicating the valve cavity 80 with the washing cavity 11. For the convenience of assembly, the upper part of the valve cavity 80 is formed into a circular truncated cone-shaped structure 801 with the inner diameter gradually decreasing from bottom to top, the upper part of the valve core 83 is provided with an accommodating cavity 834 extending downwards from the upper end, and the elastic piece 84 is a spring with the upper end abutting against the upper end of the circular truncated cone-shaped structure 801 and the lower end abutting against the bottom wall of the accommodating cavity 834. Because the motor 51 can form negative pressure in the air guide channel 510 during operation, part of the air in the washing chamber 11 can enter the valve chamber 80 through the air vent 5111, so as to impact the second blade 833 to drive the valve core 83 to rotate, and meanwhile, the first blade 811 rotates along with the rotation of the motor output shaft 511 to disperse the air in the circumferential direction, which is beneficial to increasing the negative pressure above the valve core 83, increasing the upward driving force on the valve core 83, and accelerating the upward speed of hot air.

The flow guide element 4 of this embodiment includes a body 41 shaped like a disk and air guide rings 42 sleeved in the body 41 at intervals, the body 41 is hollow to form an air guide cavity 411 conducting along the circumferential direction, and a plurality of air guide holes 412 for air to enter the air guide cavity 411 from the heat collecting cavity 3 are arranged on the outer side wall of the body 41 at intervals; the central portion of the air guide ring 42 is provided with an air outlet 421 which is through up and down, and a plurality of air guide tubes 43 which extend along the radial direction and communicate the air guide cavity 412 with the air outlet 421 are connected between the body 41 and the air guide ring 42. The flow guide piece 4 is made of a thin metal material, so that heated air can be conveyed into the air guide channel quickly, and heat loss is reduced.

The bottom of the heat collecting chamber 3 is provided with a ring-shaped mounting bracket 31, and the motor 51 is fixed below the mounting bracket 31 and a gap 32 for supplying gas into the heat collecting chamber 3 is formed between the top edge and the inner edge of the mounting bracket 31. The flow guide member 4 is fixedly connected to the motor output shaft 511 and rotates synchronously therewith, and an air inlet 5112 for air to enter the air guide channel 510 from the air outlet 421 is formed on the side wall of the motor output shaft 511. When the air guide member 4 rotates synchronously with the motor output shaft 511, because the negative pressure is formed in the air guide channel 510 and the negative pressure in the air guide cavity 411 is increased along with the rotation of the air guide member 4, the hot air in the heat collection cavity 3 is favorably and quickly sucked into the air guide channel 510 and conveyed into the washing cavity 11, and the drying efficiency is improved.

The impeller 52 of the present embodiment includes a sleeve 521 sleeved outside the motor output shaft 511 and blades 522 provided on the outer peripheral wall of the sleeve 521, wherein the lower portion of the blades 522 is a centrifugal structure 5221 extending in the radial direction, and the upper portion is an axial flow structure 5222 spirally arranged in the axial direction. The centrifugal structure 5221 can disperse hot air in the circumferential direction, and the axial flow structure 5222 can keep the hot air upward, so that the flow speed of the hot air in the washing cavity 11 is accelerated, the drying effect is improved, and the drying dead angle is eliminated.

The cleaning method of the cleaning machine with the drying function comprises the following steps:

starting a washing program, heating the water at the bottom of the washing cavity 11 by the heating plate 2, and continuously lifting the water at the bottom of the washing cavity 11 by the matching of the spraying arm and the driving mechanism 7 to wash dishes in a spraying mode; during the cleaning process, the motor 51 is not operated, and the air guide channel 510 is closed by the check valve 8;

after the washing is finished, discharging the waste water in the washing cavity 11; the motor 51 is started, the heating plate 2 is kept in a heating mode, heated air in the heat collection cavity 3 enters the air guide cavity 411 through the air guide hole 412 and then enters the air guide channel 510 of the motor output shaft 511 through the air guide pipe 43, the air outlet 421 and the air inlet 5112, the motor output shaft 511 rotates to drive the impeller 52 in the washing cavity 11 to rotate, negative pressure is formed above the air guide channel 510, the check valve 8 communicates the air guide channel 510, hot air in the air guide channel 510 is sucked into the washing cavity 11 to rapidly dry dishes in the washing cavity 11, and air blown through the dishes carries water vapor to be discharged from the air outlet 12 at the upper part of the water tank body.

Claims (7)

1. The utility model provides a cleaning machine of area stoving function, includes basin body and heating plate, the inside cavity of basin body forms the washing chamber, the heating plate is located on the diapire of basin body and is used for heating the water of washing chamber bottom, its characterized in that: a heat collecting cavity extending downwards around the outer edge of the heating disc is arranged on the bottom wall of the water tank body, a flow guide piece capable of intensively guiding hot air is arranged in the heat collecting cavity, and an air guide structure capable of conveying the hot air in the flow guide piece into the washing cavity is arranged on the bottom wall of the water tank body in a penetrating manner; the side wall of the water tank body is provided with an exhaust port for water vapor output;

the air guide structure comprises a motor and an impeller, the motor is arranged below the heat collection cavity, an output shaft of the motor is arranged upwards, the output shaft of the motor penetrates through the flow guide piece and the bottom wall of the water tank body and extends into the washing cavity, the impeller is arranged in the washing cavity and connected with the output shaft of the motor, and at least the upper part of the output shaft of the motor is hollow to form an air guide channel communicated with the flow guide piece;

the gas guide channel is internally provided with a one-way valve which only allows gas to enter the washing cavity from the gas guide channel and prevents water from entering the gas guide channel from the washing cavity;

the check valve comprises an upper valve sleeve, a lower valve sleeve, a valve core and an elastic piece, wherein the upper valve sleeve and the lower valve sleeve are arranged in an air guide channel, a valve cavity for installing the valve core and the elastic piece is formed between the lower end of the upper valve sleeve and the upper end of the lower valve sleeve, the lower part of the valve core is of a conical structure capable of being inserted into an upper port of the lower valve sleeve, the upper part of the valve core is provided with a step capable of abutting against the upper end face of the lower valve sleeve so as to seal the upper port of the lower valve sleeve, and the elastic piece is arranged above the valve core and enables the valve core to always keep moving downwards so as to seal the upper port of the lower valve sleeve.

2. The washing machine with drying function as claimed in claim 1, wherein: the inner wall of the upper part of the valve cavity is provided with a first blade extending along the radial direction, the peripheral wall of the upper part of the valve core is provided with a second blade extending along the axial direction of the valve core in a spiral manner, and the side part of the motor output shaft is provided with a ventilation opening for communicating the valve cavity and the washing cavity at the position corresponding to the second blade.

3. The washing machine with drying function as claimed in claim 1, wherein: the upper part of the valve cavity is formed into a circular truncated cone-shaped structure with the inner diameter gradually reduced from bottom to top, the upper part of the valve core is provided with an accommodating cavity extending downwards from the upper end, and the elastic piece is a spring with the upper end abutting against the upper end of the circular truncated cone-shaped structure and the lower end abutting against the bottom wall of the accommodating cavity.

4. The washer with drying function as claimed in claim 1, 2 or 3, wherein: the flow guide piece comprises a disc-shaped body and air guide rings sleeved in the body at intervals, an air guide cavity communicated along the circumferential direction is formed in the hollow body, and a plurality of air guide holes for allowing air to enter the air guide cavity from the heat collection cavity are arranged on the outer side wall of the body at intervals; the central part of the air guide ring is provided with an air outlet which is communicated up and down, and at least two air guide pipes which extend along the radial direction and communicate the air guide cavity with the air outlet are connected between the body and the air guide ring.

5. The washing machine with drying function as claimed in claim 4, wherein: the bottom of the heat collection cavity is provided with an annular mounting frame, the motor is fixed below the mounting frame, and a gap for supplementing gas into the heat collection cavity is formed between the edge of the top of the motor and the inner edge of the mounting frame; the flow guide piece is fixedly connected to the motor output shaft and synchronously rotates along with the motor output shaft, and the side wall of the motor output shaft is provided with an air inlet through which air enters the air guide channel from the air outlet.

6. The washer with drying function as claimed in claim 1, 2 or 3, wherein: the impeller comprises a shaft sleeve sleeved outside the output shaft of the motor and blades arranged on the peripheral wall of the shaft sleeve, the lower parts of the blades are centrifugal structures extending along the radial direction, and the upper parts of the blades are axial flow structures spirally arranged along the axial direction.

7. A cleaning method of a cleaning machine with drying function as claimed in any one of claims 1 to 6, characterized in that:

the heating plate heats water at the bottom of the washing cavity, and a washing program is started to clean dishes in the washing cavity; during the cleaning process, the motor does not operate;

after the washing is finished, discharging the waste water in the washing cavity; the motor is started, the heating plate is kept in a heating mode, heated air in the heat collection cavity enters the air guide channel of the motor output shaft after being concentrated through the flow guide piece, the motor output shaft rotates to drive the impeller positioned in the washing cavity to rotate, so that negative pressure is formed above the air guide channel, hot air in the air guide channel is sucked into the washing cavity, dishes in the washing cavity are quickly dried, and air blown through the dishes carries water vapor to be discharged from the air outlet in the upper portion of the water tank body.

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