CN111436881A

CN111436881A - Cleaning machine and door opening and closing method thereof

Info

Publication number: CN111436881A
Application number: CN202010243383.0A
Authority: CN
Inventors: 王小艳; 魏瑞晖; 朱灯光
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-07-24
Anticipated expiration: 2040-03-31
Also published as: CN111436881B

Abstract

The invention relates to a cleaning machine and a door opening and closing method thereof, wherein the cleaning machine comprises a box body and a door body, wherein the lower wall surface of the door body is provided with a sealing part which can be inserted into an opening of the box body in a downward protruding manner; the sealing ring is sleeved on the periphery of the sealing part, and the inside of the sealing ring is hollow to form a second gas collection cavity; the air pump is used for sucking the air in the first air collecting cavity into the second air collecting cavity or discharging the air in the second air collecting cavity into the first air collecting cavity. According to the invention, the door body sealing structure is linked with the door body overturning structure, and when the door body is overturned downwards to a closed state, automatic sealing is realized by inflating the sealing ring; in the process of discharging the gas in the sealing ring, the door body is driven to turn upwards to open the door body while the sealing of the door body is relieved; the structure of the invention has good sealing performance and convenient door opening and closing, and is beneficial to improving the experience of users.

Description

Cleaning machine and door opening and closing method thereof

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a cleaning machine for cleaning dishes, fruits and vegetables, and further relates to a door opening and closing method of the cleaning machine.

Background

With the increasing living standard of people, the dish washing machine is used as a kitchen household appliance and is more and more introduced into families. The dish-washing machines on the market at present are generally divided into a table type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the table type dish-washing machine is an integral independent structure and is generally placed on a table top for use; the cabinet type dish washing machine is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the sink dishwasher is combined with a sink and is generally installed in a kitchen cabinet for use. The existing groove type cleaning machine is not provided with a door lock structure, only adopts a door body to seal radially, the door can be opened in the dish washing process, high-temperature liquid is easy to scald due to splashing, and certain potential safety hazards exist.

For example, the chinese patent application No. 201320889945.4 of the present applicant discloses a sink type cleaning machine, which includes a box body forming a washing space, the box body includes a sink body and a cover plate rotatably connected to the sink body, the bottom of the sink body has a concave draining area at least at the central portion, a water pump is disposed in the draining area for pumping water in the draining area to the washing space above the draining area, the draining area is covered with a draining plate with draining holes, a rotary spray arm for pumping water is disposed above the draining plate, and a heater is further disposed in the draining area. Above-mentioned cleaning machine washes the dish in-process, owing to do not have the lock door structure, thereby easily dashes the door and opens the door when the door seals the door body when not tight enough and leak, opens the door when the door seals tight enough and very hard again, leads to user experience poor.

Therefore, further improvements are needed in the current washer designs.

Disclosure of Invention

The invention aims to solve the technical problem of providing a cleaning machine which has good sealing performance and is convenient for opening and closing a door, aiming at the current situation of the prior art.

Another technical problem to be solved by the present invention is to provide a door opening and closing method for a cleaning machine, which can automatically release the seal when the door is opened and automatically achieve the seal when the door is closed.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a cleaning machine, includes the box and the door body, the inside cavity of box forms and has open washing chamber, protruding sealing that can plant in the box is uncovered on the lower wall of the door body, its characterized in that: also comprises

The pneumatic rotating shaft is arranged at the joint of the box body and the door body, is used for driving the door body to turn up and down, and is provided with a first gas collecting cavity which can suck gas in a door opening state and discharge the gas in a door closing state;

the sealing ring is sleeved on the periphery of the sealing part, the interior of the sealing ring is hollow to form a second gas collecting cavity, the peripheral wall of the sealing ring is gradually extruded and sealed with the inner wall of the box body in the state that the second gas collecting cavity is inflated, and is gradually separated from the inner wall of the box body in the state that the second gas collecting cavity is deflated to remove sealing; and

and the air pump is arranged close to the pneumatic rotating shaft and used for sucking the air in the first air collecting cavity into the second air collecting cavity or discharging the air in the second air collecting cavity into the first air collecting cavity.

In order to facilitate the operation of the door opening and closing process of the cleaning machine, the cleaning machine further comprises a microswitch for controlling whether the air pump sucks air or not, the microswitch is arranged on the front side of the door body and is in electric signal connection with the controller, and the microswitch is triggered in the door opening state. The front side of the door body is provided with an operating mechanism capable of triggering and releasing the micro switch, and the front side wall of the door body is provided with a handle corresponding to the operating mechanism.

Preferably, operating device including rotate piece, elastic component and the handle, it has the holding storehouse that is used for installing the handle to open on the lateral wall before the door body, the handle can be located in this holding storehouse with overturning, micro-gap switch locates in the door body and is provided with the trigger piece on the lateral wall, rotate the piece and can locate in the door body with overturning and overturn downwards will trigger the piece closure, upwards overturn and will trigger the piece and loosen, the both ends of elastic component are connected with handle and rotation piece respectively. The microswitch is a normally closed switch, namely the trigger piece of the microswitch is in a non-operating state when closed and is in an operating state when the trigger piece is released; the structure of the operation structure is convenient for triggering the micro switch through the handle at the front side of the door body, and the operation is convenient.

Preferably, the rotating member has a first portion arranged horizontally, a second portion extending from the front edge of the first portion obliquely to the rear upper direction, and a third portion extending from the rear edge of the first portion downward, the door body has a hollow mounting cavity, the microswitch is arranged at the front side of the mounting cavity, and the trigger piece of the microswitch is arranged on the rear side wall of the microswitch and arranged corresponding to the third portion of the rotating member. Further preferably, the front part of the first part is rotatably connected in the mounting cavity and positioned above the microswitch, a V-shaped gap is formed between the front side wall of the second part and the front side wall of the mounting cavity under the condition that no external force is applied to the handle, and the third part is positioned at the rear side of the microswitch and the lower part of the third part is arranged close to the trigger piece. The rotating piece structure keeps the trend that the first part is horizontally arranged and the third part vertically abuts against the trigger piece under the action of self gravity when external force is not applied, so that the microswitch can be kept in a non-working state when external force is not applied to the handle.

For the convenience of connection and assembly, the elastic element is a spring which is transversely arranged, the front end of the spring is connected with the lower part of the handle, and the rear end of the spring is connected with the second part of the rotating element.

Preferably, the handle has a vertically arranged lower portion and an upper portion extending from the upper end of the lower portion to the front upper side, and the lower end of the lower portion is connected to the end wall of the accommodating bin through a rotating shaft.

In order to facilitate air suction and exhaust, the rear side of the sealing ring is provided with an air guide pipe which connects the second air collection cavity with the port of the air pump, and the air guide pipe penetrates through the rear side wall of the door body to be arranged.

A door opening and closing method of the cleaning machine is characterized in that:

in a door closing state, the second gas collecting cavity of the sealing ring is filled with gas, and the gas in the first gas collecting cavity of the pneumatic rotating shaft is in an emptying state; at the moment, the outer wall of the sealing ring is abutted against the inner wall of the accommodating groove, and an opening on the washing cavity is in a sealing state;

when the door is opened, starting the air suction function of the air pump, sucking the air in the second air collection cavity of the sealing ring into the first air collection cavity of the pneumatic rotating shaft, in the process, the air entering the first air collection cavity gives a driving force for the door body to turn upwards, and when the sealing pressing force is gradually reduced to be smaller than the driving force, the door body starts to turn upwards until the door body is completely turned, and stopping the air suction function of the air pump;

when the door is closed, the air pump exhaust function is started, gas in the first gas collecting cavity of the pneumatic rotating shaft is discharged into the second gas collecting cavity of the sealing ring, in the process, the gas in the second gas collecting cavity gives driving force for downward overturning of the door body, the door body starts to overturn downwards until the door body is completely closed, the outer wall of the sealing ring and the inner wall of the box body are extruded and sealed, and the air pump exhaust function is stopped.

Compared with the prior art, the invention has the advantages that: according to the invention, the door body sealing structure is linked with the door body overturning structure, and when the door body is overturned downwards to a closed state, automatic sealing is realized by inflating the sealing ring; in the process of discharging the gas in the sealing ring, the door body is driven to turn upwards to open the door body while the sealing of the door body is relieved; the structure of the invention has good sealing performance and convenient door opening and closing, and is beneficial to improving the experience of users.

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 structural diagram of a door body according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of FIG. 1;

FIG. 5 is an enlarged schematic view of part A of FIG. 4 (hidden box);

fig. 6 is an enlarged schematic structural view of a portion B in fig. 4 (hidden box).

Detailed Description

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

As shown in fig. 1 to 6, the cleaning machine of the embodiment includes a box 1, a door 2, a pneumatic rotating shaft 3, a sealing ring 4 and an air pump 5, wherein the inside of the box 1 is hollow to form a washing chamber 12 with an opening 11, one edge of the door 2 is rotatably connected to the edge of the opening 11 of the box 1, and a sealing portion 21 capable of being inserted into the opening 11 is convexly arranged on the lower wall surface of the door 2. The outer edge of the opening 11 of the box body 1 extends upwards to form a containing groove 13, and one edge of the door body 2 is rotatably connected to the inner bottom wall of the containing groove 13.

The pneumatic rotating shaft 3 of the embodiment is arranged at the joint of the box body 1 and the door body 2 and is located in the accommodating groove 13, and is used for driving the door body 2 to turn over up and down. The lower end of the pneumatic rotating shaft 3 is fixed in the containing groove 13 of the box body 1 through the positioning column 31, the door body 2 is provided with a first rotating shaft 22 near the edge and arranged along the length direction of the edge of the door body 2, one end of the first rotating shaft is fixed in the door body 2, and the other end of the first rotating shaft is rotatably connected with the driving rotating shaft 3. The starting shaft 3 of this embodiment is a piston-type pneumatic motor, and has a first gas collecting chamber capable of sucking gas in the door opening state and discharging gas in the door closing state, and the structure of the piston-type pneumatic motor is mature in the prior art, so it is not described herein; the output end of the piston type pneumatic motor is connected with the first rotating shaft 22, so that the first rotating shaft 22 is driven to rotate forwards and reversely, and the door body 2 is driven to turn over up and down.

As shown in fig. 3 and 5, the sealing ring 4 of the present embodiment is sleeved on the periphery of the sealing portion 21, the sealing ring 4 is hollow to form a second gas collecting cavity 41, the outer peripheral wall of the sealing ring 4 gradually presses against the inner wall of the box 1 in the inflated state of the second gas collecting cavity 41 and gradually separates from the inner wall of the box 1 to release the sealing in the deflated state of the second gas collecting cavity 41. The air pump 5 is fixed in the containing groove 13 at an air suction and exhaust end close to the pneumatic rotating shaft 3, the air pump 5 has a bidirectional air suction and exhaust function, one port of the air pump 5 is communicated with the second air collection chamber 41, and the other opening of the air pump 5 is connected with an air suction and exhaust port of the piston type pneumatic motor, and is used for sucking the air in the first air collection chamber into the second air collection chamber 41 or exhausting the air in the second air collection chamber 41 into the first air collection chamber. As shown in fig. 6, the rear side of the sealing ring 4 is provided with a gas-guiding tube 411 for connecting the second gas-collecting chamber 41 with the port of the air pump 5, and the gas-guiding tube 411 is arranged through the rear side wall of the door body 2.

In order to facilitate the operation of the door opening and closing process of the cleaning machine, the cleaning machine of the embodiment further comprises a micro switch 6 for controlling whether the air pump 5 sucks air or not, and whether the air exhaust function of the air pump 5 is started or not can be realized through other switches, or a reverse air exhaust switch on the air pump 5 can be directly utilized, and the reverse air exhaust switch can be automatically triggered after the pressure in the air pump is increased to a certain degree.

The microswitch 6 is arranged at the front side of the door body 2 and is connected with the electric signal of the controller, and the microswitch 6 is triggered in the door opening state. An operating mechanism 7 capable of triggering and releasing the micro switch 6 is provided on the front side of the door body 2, and a handle 71 corresponding to the operating mechanism 7 is provided on the front side wall of the door body 2.

Specifically, as shown in fig. 5, the operating mechanism 7 includes a rotating member 72, an elastic member 73, and a handle 71, the front side wall of the door body 2 is provided with a receiving chamber 23 for mounting the handle, and the handle 71 is disposed in the receiving chamber 23 in a reversible manner. The handle 71 has a vertically arranged lower portion 711 and an upper portion 712 extending from the upper end of the lower portion 711 obliquely forward and upward, and the lower end of the lower portion 711 is connected to the end wall of the accommodating chamber 23 through a rotating shaft. The microswitch 6 is arranged in the door body 2 and is provided with a trigger piece 61 on the side wall, the rotating piece 72 is arranged in the door body 2 in a turnover way and can turn downwards to close the trigger piece 61 and turn upwards to release the trigger piece 61, and two ends of the elastic piece 73 are respectively connected with the handle 71 and the rotating piece 72. The microswitch 6 in the embodiment is a normally closed switch, that is, the microswitch is in an inoperative state when the trigger piece 61 is closed and in an operative state when the trigger piece 61 is released; the structure of the operating structure 7 is convenient for triggering the micro switch 6 through the handle 71 at the front side of the door body 2, and the operation is convenient.

The above-mentioned rotating member 72 has the first part 721 arranged horizontally and the second part 722 extending from the front edge of the first part 721 obliquely to the back and up direction, the third part 723 extending from the back edge of the first part 721 downward, the door body 2 has the hollow installation cavity 24, the microswitch 6 is set in the front side of the installation cavity 24, the trigger piece 61 of the microswitch 6 is set in the back side wall and arranged corresponding to the third part 723 of the rotating member 72. The front part of the first part 721 is rotatably connected in the mounting cavity 24 by a second rotating shaft 7211 and is positioned above the microswitch 6, a V-shaped gap 7221 is formed between the front side wall of the second part 722 and the front side wall of the mounting cavity 24 under the state that no external force is applied to the handle 71, and the third part 723 is positioned at the rear side of the microswitch 6 and the lower part is arranged close to the trigger piece 61. The above-mentioned rotating member 72 structure will keep the first part 721 horizontally arranged and the third part 723 vertically pressed against the trigger piece 61 under the action of its own gravity when no external force is applied, so that the microswitch 6 can be kept in a non-working state when no external force is applied to the handle 71. The elastic member 73 is a spring which is transversely arranged and has a front end connected to the lower portion 711 of the handle 71 and a rear end connected to the second portion 722 of the rotating member 72.

The door opening and closing method of the cleaning machine comprises the following steps:

in a door closing state, the second gas collecting cavity 41 of the sealing ring 4 is filled with gas, and the first gas collecting cavity of the pneumatic rotating shaft 3 is in an emptying state; at the moment, the outer wall of the sealing ring 4 is abutted against the inner wall of the box body 1, and an opening 11 on the washing cavity 12 is in a sealing state;

when the door is opened, the handle 71 is pressed upwards, the rotating piece 72 is pulled to turn upwards through the elastic piece 73, the third part 723 of the rotating piece 72 releases the trigger piece 61, the microswitch 6 is triggered, so that the air suction function of the air pump 5 is started, the air in the second air collecting cavity 41 of the sealing ring 4 is sucked into the first air collecting cavity of the pneumatic rotating shaft 3, in the process, the air entering the first air collecting cavity gives a driving force for the door body 2 to turn upwards, when the sealing pressing force is gradually reduced to be smaller than the driving force, the door body 2 starts to turn upwards until the door body 2 is completely turned, the handle 71 is released, the rotating piece 72 resets under the gravity, the trigger piece 61 is closed, the microswitch 6 releases the trigger, and the air suction function of the air pump 5 is stopped; at the moment, the door body 2 is completely turned and kept in an open state under the action of gravity;

when the door is closed, the door body 2 is turned back manually, the pneumatic rotating shaft 3 rotates reversely to discharge part of gas in the first gas collecting cavity into the gas pump 5, when the pressure in the gas pump 5 is increased to a certain value, the reverse exhaust switch of the pneumatic rotating shaft is triggered, the exhaust function of the gas pump 5 is started, the gas in the first gas collecting cavity of the pneumatic rotating shaft 3 is discharged into the second gas collecting cavity 41 of the sealing ring 4, in the process, the gas in the second gas collecting cavity 41 gives driving force for downward turning of the door body 2, the door body 2 starts to automatically turn downward until the door body 2 is completely closed, the outer wall of the sealing ring 4 is sealed with the inner wall of the box body 1 in a squeezing mode, and the exhaust function of the gas pump.

The door body 2 of the cleaning machine can be provided with a main switch 8 for controlling the air pump 5 to work or not, after a washing key is pressed, namely the dishwasher is in a cleaning state, the air pump 5 is kept not running, the handle 71 is timely touched by a hand in a wrong way, the door body 2 cannot be opened, and only after the main switch removes the limitation of the washing state, the door is opened and closed to ensure safety.

In the embodiment, the sealing structure of the door body 2 is linked with the turnover structure of the door body 2, and when the door body 2 is turned downwards to be in a closed state, the sealing ring 3 is inflated to realize automatic sealing; in the process of discharging the gas in the sealing ring 3, the door body 2 is driven to turn upwards to open the door body 2 while the sealing of the door body 2 is released. In the door closing process, since the gas is discharged into the second gas collecting chamber 41 in a slow process, the door closing process of the door body 2 is also slow, and hands cannot be pinched due to too fast door closing.

Claims

1. The utility model provides a cleaning machine, includes box (1) and door body (2), the inside cavity of box (1) forms washing chamber (12) that have uncovered (11), door body (2) edge is rotated and is connected in uncovered (11) edge of box (1), downward protruding sealing (21) that can insert in this box (1) uncovered (11) that are equipped with on the lower wall of door body (2), its characterized in that: also comprises

The pneumatic rotating shaft (3) is arranged at the joint of the box body (1) and the door body (2), is used for driving the door body (2) to overturn up and down, and is provided with a first gas collecting cavity which can suck gas in a door opening state and discharge the gas in a door closing state;

the sealing ring (4) is sleeved on the periphery of the sealing part (21), a second gas collecting cavity (41) is formed in the sealing ring (4) in a hollow mode, the outer peripheral wall of the sealing ring (4) is gradually extruded and sealed with the inner wall of the box body (1) in the inflation state of the second gas collecting cavity (41), and is gradually separated from the inner wall of the box body (1) to be unsealed in the deflation state of the second gas collecting cavity (41); and

and the air pump (5) is arranged close to the pneumatic rotating shaft (3) and is used for sucking the air in the first air collecting cavity into the second air collecting cavity (41) or discharging the air in the second air collecting cavity (41) into the first air collecting cavity.

2. The cleaning machine of claim 1, wherein: the door further comprises a microswitch (6) for controlling whether the air pump (5) sucks air or not, the microswitch (6) is arranged on the front side of the door body (2) and is in electric signal connection with the controller, and the microswitch (1) is triggered in a door opening state.

3. The cleaning machine of claim 2, wherein: an operating mechanism (7) capable of triggering and releasing the micro switch (6) is arranged on the front side of the door body (2), and a handle (71) corresponding to the operating mechanism (7) is arranged on the front side wall of the door body (2).

4. The cleaning machine of claim 3, wherein: operating device (7) including rotating piece (72), elastic component (73) and handle (71), it has holding storehouse (23) that is used for installing handle (71) to open on the lateral wall before door body (2), handle (71) can be located in this holding storehouse (23) with overturning, micro-gap switch (6) are located in the door body (2) and are provided with trigger piece (61) on the lateral wall, rotate piece (72) can be located in the door body (2) with overturning downwards and will trigger piece (61) closure, upwards overturn and will trigger piece (61) and loosen, the both ends of elastic component (73) are connected with handle (71) and rotation piece (72) respectively.

5. The cleaning machine of claim 4, wherein: the rotating piece (72) is provided with a first part (721) which is horizontally arranged, a second part (722) which obliquely extends upwards and backwards from the front edge of the first part (721), and a third part (723) which extends downwards from the rear edge of the first part (721), the door body (2) is provided with a hollow installation cavity (24), the microswitch (6) is arranged at the front side of the installation cavity (24), and the trigger piece (61) of the microswitch (6) is arranged on the rear side wall of the microswitch and is arranged corresponding to the third part (723) of the rotating piece (72).

6. The cleaning machine of claim 5, wherein: the front part of the first part (721) is rotatably connected in the mounting cavity (24) and positioned above the microswitch (6), a V-shaped gap (7221) is formed between the front side wall of the second part (722) and the front side wall of the mounting cavity (24) under the state that no external force is applied to the handle (71), and the third part (723) is positioned at the rear side of the microswitch (6) and the lower part of the third part is arranged close to the trigger sheet (61).

7. The cleaning machine of claim 5, wherein: the elastic member (73) is a spring which is transversely arranged and has a front end connected with the lower portion of the handle (71) and a rear end connected with the second portion (722) of the rotating member (72).

8. The cleaning machine of claim 4, wherein: the handle (71) is provided with a lower part (711) which is vertically arranged and an upper part (712) which extends from the upper end of the lower part (711) to the front upper side in an inclined way, and the lower end of the lower part (711) is connected to the end wall of the accommodating bin (23) through a rotating shaft.

9. The cleaning machine of any one of claims 1-8, wherein: the rear side of the sealing ring (4) is provided with an air duct (411) which connects the second air collecting cavity (41) with the port of the air pump (5), and the air duct (411) penetrates through the rear side wall of the door body (2) to be arranged.

10. A method for opening and closing a door of a washing machine as claimed in any one of claims 1 to 9, characterized in that:

in a door closing state, the second gas collecting cavity (41) of the sealing ring (4) is filled with gas, and the first gas collecting cavity of the pneumatic rotating shaft (3) is in an emptying state; at the moment, the outer wall of the sealing ring (4) is abutted against the inner wall of the box body (1), and an opening (11) on the washing cavity (12) is in a sealing state;

when the door is opened, starting the air suction function of the air pump (5), sucking the air in the second air collection cavity (41) of the sealing ring (4) into the first air collection cavity of the pneumatic rotating shaft (3), in the process, the air entering the first air collection cavity gives a driving force for upward turning of the door body (2), when the sealing pressing force is gradually reduced to be smaller than the driving force, the door body (2) starts to turn upward until the door body (2) is completely turned, and stopping the air suction function of the air pump (5);

when the door is closed, the air pump (5) is started to perform an exhaust function, air in the first air collecting cavity of the pneumatic rotating shaft (3) is discharged into the second air collecting cavity (41) of the sealing ring (4), in the process, the air enters the second air collecting cavity (41) and provides driving force for downward overturning of the door body (2), the door body (2) starts to overturn downwards until the door body (2) is completely closed, the outer wall of the sealing ring (4) is sealed with the inner wall of the box body (1) in an extrusion mode, and the air pump (5) is stopped to perform the exhaust function.