Door opening and closing method of water tank type cleaning machine

Abstract

The invention relates to a door opening and closing method of a water tank type cleaning machine, the cleaning machine comprises a water tank body and a door body, the top of the water tank body is provided with an opening, the door body is arranged at the top of the water tank body and used for opening or closing the door body, and the edge of the opening of the water tank body is provided with a supporting table extending horizontally. A sealing piece protruding out of the supporting table is embedded in the supporting table, and the sealing device further comprises a driving mechanism capable of tightly sucking the door body downwards. When the door is closed, the door body is turned downwards to close the opening, and then the driving mechanism is operated to tightly suck the door body downwards, so that the lower surface of the door body elastically extrudes the sealing piece to realize sealing; when the door is opened, the driving mechanism drives the door body to generate an upward movement trend, elastic extrusion on the sealing piece is cancelled, and the door body is opened upwards. The sealing force can be automatically adjusted, so that the sealing effect is improved, washing steam or hot water is prevented from overflowing, and external water stains are prevented from invading.

Description

Technical Field

[0001] The invention relates to the technical field of dishwashers, in particular to a door opening and closing method of a sink-type washing machine. Background Art

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. Sink-type washing machines usually adopt a door body flip-up opening structure. For example, the Chinese patent "A Dishwasher" (application number: CN202222917579.0) with authorization announcement number CN219846429U discloses a structure including an inner tank and a door body, wherein the inner tank has a washing chamber with an open top, and the edge of the opening extends laterally outward to form an annular flange; the door body can be rotatably arranged at the opening of the inner tank, and can open or close the opening, and when the door body is in the closed state, a seal is provided between the lower surface of the door body and the opening to seal the two.

[0003] Although the above-mentioned seal can achieve sealing of the door body and the opening on the top of the inner tank, the seal is usually a plastic part. There is a hot water cleaning process in the washing program. After long-term use, the seal may be partially deformed, resulting in poor elasticity and poor sealing effect, affecting the sealing effect, causing overflow of high-temperature steam or hot water, or external accumulated water invading the washing chamber when the sink is used, affecting the washing chamber environment and cleaning effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for opening and closing the door of a sink type cleaning machine, which can self-adjust the sealing force to improve the sealing effect, avoid overflow of washing steam or hot water, and avoid intrusion of external water stains, in view of the current status of the prior art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A method for opening and closing the door of a water tank type cleaning machine, the cleaning machine comprising a water tank body and a door body, the water tank body having an opening at the top, the door body being arranged at the top of the water tank body and being used to open or close the door body, a horizontally extending support platform being arranged at the edge of the opening of the water tank body, a sealing member protruding from the support platform being embedded in the support platform, and a driving mechanism capable of sucking the door body downward;

[0007] When closing the door, first flip the door body down to close the opening, then operate the drive mechanism to suck the door body downward, so that the lower surface of the door body elastically squeezes the sealing member to achieve sealing; when opening the door, the drive mechanism drives the door body to produce an upward movement trend, canceling the elastic squeezing of the sealing member, and flipping the door body upward.

[0008] The present invention adopts a sealing member that can be elastically compressed and a driving mechanism that can suck the door body downward. When the door is closed, the driving mechanism sucks the door body downward so that the lower surface of the door body elastically squeezes the sealing member to achieve sealing. The sealing force between the lower surface of the door body and the sealing member can be adjusted by controlling the driving force of the driving member, so that the sealing member can always reliably seal with the lower surface of the door body to avoid overflow of washing steam or hot water and invasion of external water stains. When the door is opened, the driving mechanism drives the door body to produce an upward movement trend, canceling the elastic squeezing of the sealing member, and the door body can be flipped upward, which is easy to operate.

[0009] As an improvement, the seal is hollow inside to form a receiving groove, in which a first elastic member is arranged to keep the seal in an upwardly stretched state. This structure enables the sealing force between the seal and the lower surface of the door body to be coordinated through two sets of structures, so as to better control the sealing effect and service life.

[0010] Preferably, the driving mechanism includes a first magnetic component and a second magnetic component, wherein the first magnetic component is arranged under the support platform and corresponds to the sealing member, and the second magnetic component is arranged in the door body and can generate a force that attracts the first magnetic component when the door is closed and generates a force that repels the first magnetic component when the door is open. The above structure is conducive to improving the sealing performance when the door is closed and providing convenience for opening the door.

[0011] As an improvement, when the door is closed, a gap is formed between the lower surface of the door body and the support table for the discharge of hot and humid steam after washing, and the height of the gap is higher than the height of the sealing member protruding above the support table.

[0012] (1) When closing the door, first flip the door down to close the opening, then operate the drive mechanism to suck the door down tightly, so that the lower surface of the door elastically squeezes the sealing member to achieve sealing;

[0013] (2) When the door needs to be opened after washing, the driving mechanism drives the door body to move upward, canceling the elastic squeeze on the seal, exposing the gap for the high-heat and humid air in the water tank body after washing to be discharged;

[0014] (3) After exhausting, open the door upwards.

[0015] The above-mentioned door opening process can avoid burns to users caused by high-temperature and humid air after hot water washing, thereby providing safety and user experience.

[0016] Preferably, the first magnetic assembly includes a plurality of first superconducting elements arranged adjacent to each other, and the second magnetic assembly includes a plurality of second superconducting elements arranged adjacent to each other, and the first superconducting elements and the second superconducting elements are arranged one by one in the vertical direction. With the above structure, a magnetic field can be generated in the closed loop structure formed by the superconducting elements by energizing the superconducting elements, thereby realizing the suction or lifting action of the door body, and the operation is convenient.

[0017] Preferably, the current directions in two adjacent first superconducting elements are opposite, and the current directions in two adjacent second superconducting elements are opposite. The above structure is adopted to avoid failure of a single superconducting element affecting the sealing effect, thereby tightening the door body from a larger range and improving the sealing effect.

[0018] Preferably, the door body is provided with an assembly groove arranged along its circumference, and each of the second superconducting elements is arranged in the assembly groove in sequence along the length direction and can reciprocate along the length direction of the assembly groove. In the closed state, the current directions of the first superconducting elements and the second superconducting elements corresponding to each other are the same; in the open state, the current directions of the first superconducting elements and the second superconducting elements remain unchanged, and each of the second superconducting elements moves a certain distance in the assembly groove so that the current directions of the first superconducting elements and the second superconducting elements corresponding to each other are opposite. The above structure is adopted to facilitate the control of the through-section current of the superconducting elements and improve the operational reliability of the door body sealing and the top opening action.

[0019] Preferably, a slider capable of reciprocating along the length direction of the assembly groove is provided in the assembly groove, the second superconducting element is embedded in the slider, a driving structure capable of pushing each slider outward is provided at the first end of the assembly groove, and a second elastic member capable of reversing and resetting each slider is provided at the second end of the assembly groove. The above structure facilitates the reciprocating movement of the second superconducting element.

[0020] Preferably, the second superconducting elements are distributed in at least three groups, which are arranged corresponding to the left side, front side and right side of the door body respectively. The connecting bends between the left side and the front side of the door body and the connecting bends between the front side and the right side of the door body are respectively provided with rollers that can reciprocate along the length direction in the assembly groove and roll with the inner wall of the assembly groove. The bending of the door body may cause the movement of the superconducting elements to get stuck. The above structure can keep the superconducting elements moving smoothly all the time, and improve the reliability of the door body sealing and the top opening operation.

[0021] Preferably, the driving structure includes a motor and a screw rod, the motor is constrained in the door body and is located outside the first end of the assembly slot, the output shaft of the motor is connected to the screw rod, the screw rod is rotatably constrained at the first end of the assembly slot, and the end of the slider connected to the screw rod is formed with a nut pair that can cooperate with it. Preferably, the second elastic member is a linear spring provided at the second end of the assembly slot, and the linear spring keeps the slider moving toward the driving member at all times.

[0022] When the door needs to be opened, the motor runs, and the lead screw and the nut pair cooperate to push the slider and the second superconducting element outward until they move a distance beyond the second superconducting element, and the motor stalls, realizing the switching of the magnetic field between the first superconducting element and the second superconducting element, changing from attraction to repulsion, resulting in the cancellation of the seal and the lifting of the door; when the door needs to be closed and sealed, the motor does not run, and the second elastic member pushes the slider and the second superconducting element to reset, realizing the switching of the magnetic field between the first superconducting element and the second superconducting element again, changing from repulsion to attraction, and sucking the door down to seal it; the operation is convenient.

[0023] Compared with the prior art, the advantages of the present invention are: the present invention adopts a sealing member that can be elastically compressed and a driving mechanism that can suck the door body downward; when the door is closed, the driving mechanism sucks the door body downward so that the lower surface of the door body elastically squeezes the sealing member to achieve sealing; the sealing force between the lower surface of the door body and the sealing member can be adjusted by controlling the driving force of the driving member, so that the sealing member can always be reliably sealed with the lower surface of the door body to avoid overflow of washing steam or hot water and invasion of external water stains; when the door is opened, the driving mechanism drives the door body to produce an upward movement trend, canceling the elastic squeezing of the seal member, and the door body can be flipped upward, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the side structure;

[0026] Figure 3 It is a partial structural schematic diagram of an embodiment of the present invention (hidden door top plate);

[0027] Figure 4 for Figure 1 Cross-sectional view (door closed);

[0028] Figure 5 for Figure 1 Partial cross-sectional view (exhaust state before door opening). DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 5 As shown, the cleaning machine of this embodiment includes a water tank body 1 and a door body 2. The water tank body 1 has an opening at the top. The door body 2 is arranged at the top of the water tank body 1 and is used to open or close the door body 2. A horizontally extending support platform 11 is arranged at the edge of the opening of the water tank body 1. A sealing member 3 protruding from the support platform 11 is embedded in the support platform 11, and a driving mechanism capable of sucking the door body 2 downward is also included.

[0031] The method for opening and closing the door of the sink type cleaning machine is as follows: when closing the door, first flip the door body 2 down to close the opening, then operate the driving mechanism to suck the door body 2 downward, so that the lower surface of the door body 2 elastically squeezes the sealing member 3 to achieve sealing; when opening the door, the driving mechanism drives the door body 2 to produce an upward movement trend, cancels the elastic squeezing of the sealing member 3, and flips the door body 2 upward.

[0032] The present embodiment adopts a sealing member 3 which can be elastically compressed and a driving mechanism which can suck the door body 2 downward. When the door is closed, the driving mechanism sucks the door body 2 downward so that the lower surface of the door body 2 elastically squeezes the sealing member 3 to achieve sealing. The sealing force between the lower surface of the door body 2 and the sealing member 3 can be adjusted by controlling the driving force of the driving member, so that the sealing member 3 can always be reliably sealed with the lower surface of the door body 2 to avoid overflow of washing steam or hot water and invasion of external water stains. When the door is opened, the driving mechanism drives the door body 2 to produce an upward movement trend, thereby canceling the elastic squeezing of the sealing member 3 and the door body 2 can be flipped upward, which is easy to operate.

[0033] The sealing member 3 is hollow inside to form a receiving groove 30, and a first elastic member 301 is arranged in the receiving groove 30 to keep the sealing member 3 always in an upwardly stretched state. This structure enables the sealing force between the sealing member 3 and the lower surface of the door body 2 to be coordinated through two sets of structures to better control the sealing effect and service life.

[0034] The driving mechanism includes a first magnetic component 4 and a second magnetic component 5. The first magnetic component 4 is arranged under the support platform 11 and corresponds to the sealing member 3. The second magnetic component 5 is arranged in the door body 2 and can generate a force that attracts the first magnetic component 4 when the door is closed and a force that repels the first magnetic component 4 when the door is open. The above structure is conducive to improving the sealing performance in the closed state and providing convenience for opening the door.

[0035] In the closed state, a gap 20 is formed between the lower surface of the door body 2 and the support 11 for the exhaust of hot and humid steam after washing. The height of the gap 20 is higher than the height of the seal 3 protruding above the support 11. The method of opening and closing the door of the water tank type washing machine is:

[0036] (1) When closing the door, first flip the door body 2 downward to close the opening, then operate the drive mechanism to suck the door body 2 downward, so that the lower surface of the door body 2 elastically presses the sealing member 3 to achieve sealing;

[0037] (2) When the door needs to be opened after washing, the driving mechanism drives the door body 2 to move upward, canceling the elastic compression of the sealing member 3, and exposing the gap to allow the high-heat and humid air in the water tank body 1 to be discharged after washing;

[0038] (3) After exhausting, open the door 2 upwards.

[0039] The above-mentioned door opening process can avoid burns to users caused by high-temperature and humid air after hot water washing, thereby providing safety and user experience.

[0040] The first magnetic assembly 4 includes a plurality of adjacently arranged first superconducting elements 41, and the second magnetic assembly 5 includes a plurality of adjacently arranged second superconducting elements 51, and the first superconducting elements 41 and the second superconducting elements 51 are arranged one by one in the vertical direction. With the above structure, a magnetic field can be generated in the closed loop structure formed by the superconducting elements by energizing the superconducting elements, thereby realizing the suction or push-up action of the door body 2, and the operation is convenient.

[0041] The currents in two adjacent first superconducting elements 41 are in opposite directions, and the currents in two adjacent second superconducting elements 51 are in opposite directions. The above structure is adopted to avoid failure of a single superconducting element and affect the sealing effect, thereby tightening the door body 2 in a larger range and improving the sealing effect.

[0042] The door body 2 is provided with an assembly groove 21 arranged along its circumference, and each second superconducting element 51 is arranged in sequence in the assembly groove 21 along the length direction and can reciprocate along the length direction of the assembly groove 21. In the closed state, the current directions of the first superconducting elements 41 and the second superconducting elements 51 corresponding to each other are the same; in the open state, the current directions of the first superconducting elements 41 and the second superconducting elements 51 remain unchanged, and each second superconducting element 51 moves a certain distance in the assembly groove 21 so that the current directions of the first superconducting elements 41 and the second superconducting elements 51 corresponding to each other are opposite. The above structure is adopted to facilitate the control of the through-section current of the superconducting elements and improve the operational reliability of the sealing and top-opening actions of the door body 2.

[0043] The assembly groove 21 is provided with a slider 22 that can slide back and forth along the length direction of the assembly groove 21, and the second superconducting element 51 is embedded in the slider 22. The first end of the assembly groove 21 is provided with a driving structure that can push each slider 22 outward, and the second end of the assembly groove 21 is provided with a second elastic member 26 that can reversely move and reset each slider 22. The above structure facilitates the reciprocating movement of the second superconducting element 51.

[0044] The second superconducting elements 51 are distributed in at least three groups, which are arranged corresponding to the left side, front side and right side of the door body 2, respectively. The connecting bends between the left side and the front side of the door body 2 and the connecting bends between the front side and the right side of the door body 2 are respectively provided with rollers 23 which can reciprocate along the length direction in the assembly groove 21 and roll with the inner wall of the assembly groove 21. The bending of the door body 2 may cause the movement of the superconducting elements to be stuck. The above structure can keep the superconducting elements moving smoothly all the time, and improve the reliability of the sealing of the door body 2 and the operation of opening the door.

[0045] The driving structure includes a motor 24 and a screw rod 25. The motor 24 is constrained in the door body 2 and is located outside the first end of the assembly slot 21. The output shaft of the motor 24 is connected to the screw rod 25. The screw rod 25 is rotatably constrained at the first end of the assembly slot 21. A nut pair that can cooperate with the end of the slider 22 connected to the screw rod 25 is formed. The second elastic member is a linear spring provided at the second end of the assembly slot 21, which keeps the slider 22 moving toward the driving member.

[0046] When the door needs to be opened, the motor 24 runs, and the slider 22 and the second superconducting element 51 can be pushed outward by the screw rod 25 and the nut pair, until they move a distance beyond the second superconducting element 51, and the motor 24 is blocked, so that the magnetic field between the first superconducting element 41 and the second superconducting element 51 is switched, from attraction to repulsion, resulting in the cancellation of the seal and the lifting of the door; when the door needs to be closed and sealed, the motor 24 does not run, and the second elastic member pushes the slider 22 and the second superconducting element 51 to reset, so that the magnetic field between the first superconducting element 41 and the second superconducting element 51 is switched again, from repulsion to attraction, and the door is sucked down and sealed; the operation is convenient.

[0047] The present embodiment adopts a sealing member 3 which can be elastically compressed and a driving mechanism which can suck the door body 2 downward. When the door is closed, the driving mechanism sucks the door body 2 downward so that the lower surface of the door body 2 elastically squeezes the sealing member 3 to achieve sealing. The sealing force between the lower surface of the door body 2 and the sealing member 3 can be adjusted by controlling the driving force of the driving member, so that the sealing member 3 can always be reliably sealed with the lower surface of the door body 2 to avoid overflow of washing steam or hot water and invasion of external water stains. When the door is opened, the driving mechanism drives the door body 2 to produce an upward movement trend, thereby canceling the elastic squeezing of the sealing member 3 and the door body 2 can be flipped upward, which is easy to operate.

[0048] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A method for opening and closing the door of a water tank type cleaning machine, the cleaning machine comprising a water tank body (1) and a door body (2), the water tank body (1) having an opening at the top, the door body (2) being arranged at the top of the water tank body (1) and used for opening or closing the door body (2), characterized in that: The open edge of the water tank body (1) is provided with a horizontally extending support platform (11), a sealing member (3) protruding from the support platform is embedded in the support platform, and a driving mechanism capable of sucking the door body downward is also included; When closing the door, the door body (2) is first flipped down to close the opening, and then the driving mechanism is operated to suck the door body downward, so that the lower surface of the door body elastically presses the sealing member (3) to achieve sealing; when opening the door, the driving mechanism drives the door body to generate an upward movement trend, canceling the elastic compression of the sealing member (3), and the door body (2) is flipped up.

2. The method for opening and closing the door of a water tank type cleaning machine according to claim 1, characterized in that: The sealing member (3) is hollow inside to form a receiving groove, and a first elastic member is arranged in the receiving groove, which enables the sealing member (3) to always maintain an upwardly stretched state.

3. The method for opening and closing the door of a water tank cleaning machine according to claim 1, characterized in that: The driving mechanism comprises a first magnetic component (4) and a second magnetic component (5); the first magnetic component (4) is arranged under the support platform and corresponds to the sealing component (3); the second magnetic component (5) is arranged in the door body (2) and can generate a force that attracts the first magnetic component (4) when the door is closed, and generate a force that repels the first magnetic component (4) when the door is open.

4. The method for opening and closing the door of a water tank type cleaning machine according to claim 3, characterized in that: The first magnetic component (4) comprises a plurality of first superconducting elements (41) arranged adjacent to each other, and the second magnetic component (5) comprises a plurality of second superconducting elements (51) arranged adjacent to each other, and the first superconducting elements (41) and the second superconducting elements (51) are arranged in a one-to-one correspondence in the vertical direction.

5. The method for opening and closing the door of a water tank cleaning machine according to claim 4, characterized in that: The directions of the currents in two adjacent first superconducting elements (41) are opposite, and the directions of the currents in two adjacent second superconducting elements (51) are opposite.

6. The method for opening and closing the door of a water tank cleaning machine according to claim 5, characterized in that: The door body (2) is provided with an assembly groove (21) arranged along its circumference, and each of the second superconducting elements (51) is arranged in sequence in the assembly groove (21) along the length direction and can reciprocate along the length direction of the assembly groove (21). In a closed state, the current directions of the first superconducting elements (41) and the second superconducting elements (51) corresponding to each other above are the same; in an open state, the current directions of the first superconducting elements (41) and the second superconducting elements (51) remain unchanged, and each of the second superconducting elements (51) moves a certain distance in the assembly groove (21) so that the current directions of the first superconducting elements (41) and the second superconducting elements (51) corresponding to each other above are opposite.

7. The method for opening and closing the door of a water tank cleaning machine according to claim 6, characterized in that: The assembly groove (21) is provided with a slider (22) capable of reciprocating along the length direction of the assembly groove (21), the second superconducting element (51) is embedded in the slider (22), the first end of the assembly groove (21) is provided with a driving structure capable of pushing each slider (22) outward, and the second end of the assembly groove (21) is provided with a second elastic member (26) capable of causing each slider (22) to move in the opposite direction and reset.

8. The method for opening and closing the door of a water tank cleaning machine according to claim 7, characterized in that: The second superconducting elements (51) are distributed in at least three groups, which are arranged corresponding to the left side, front side and right side of the door body (2), respectively. The connecting bends between the left side and the front side of the door body (2) and the connecting bends between the front side and the right side of the door body (2) are respectively provided with rollers (23) which can reciprocate along the length direction in the assembly groove (21) and roll with the inner wall of the assembly groove (21).

9. The method for opening and closing the door of a water tank cleaning machine according to claim 7, characterized in that: The driving structure includes a motor (24) and a screw rod (25), wherein the motor (24) is constrained in the door body (2) and is located outside the first end of the assembly groove (21), the output shaft of the motor (24) is connected to the screw rod (25), and the screw rod (25) is rotatably constrained at the first end of the assembly groove (21), and the end of the slider (22) connected to the screw rod (25) is formed with a nut pair that can cooperate with the screw rod (25).

10. The method for opening and closing the door of a water tank cleaning machine according to claim 9, characterized in that: The second elastic member (26) is a linear spring arranged at the second end of the assembly groove (21), and the linear spring enables the slider (22) to always maintain a tendency to move toward the motor direction.

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