Cleaning machine

Abstract

The cleaning machine comprises a water tank, a door body and a switch assembly, the rear edge of the door body is rotationally connected to the rear edge of an opening in the top of the water tank, a hollow cavity is formed in the door body, and a mounting cavity which is independent relative to the cavity and used for mounting the switch assembly is formed in the cavity; a telescopic air bag is arranged on the side wall of the mounting cavity, the air bag is communicated with the mounting cavity, and the telescopic part of the air bag is located outside the mounting cavity. In the washing process, the air pressure in the mounting cavity is increased due to the fact that the temperature in the door body is too high, so that part of air in the mounting cavity is extruded into the air bag, and the telescopic part of the air bag bulges and extends out of the mounting cavity; when the temperature in the door body returns to normal, the air pressure in the mounting cavity is reduced, the air bag shrinks, and the air in the air bag is recovered into the mounting cavity; in the process, self-adaption of air pressure in the mounting cavity is achieved through stretching and contracting of the air bag, and therefore the sealing performance of the mounting cavity is kept all the time.

Description

Technical Field

[0001] The invention relates to the technical field of dishwashers, and in particular to a washing machine for washing tableware, fruits and vegetables. Background Art

[0002] The sink-type washing machine adopts an upturned door body, and the switch assembly of the washing machine is usually installed on the door body to facilitate user operation. For example, Chinese utility model patent ZL 202022830835.3 "A door body installation structure of a sink-type dishwasher" discloses a sink-type dishwasher including a door body structure. The above-mentioned existing dishwashers usually fasten the adhesive bracket of the switch assembly to the door body frame with screws, and the door body glass is bonded to the adhesive bracket and the door body frame. At the same time, the switch assembly is located in the interlayer between the door body frame and the door body glass. The damping shaft of the door body is installed at the rear end of the door body frame, and the door body rotates around the center of the shaft in the sink of the trough panel to open and close.

[0003] The applicant's prior application 202421525104.X "A washing machine" discloses a structure using an upward flip-up door body, in which the switch assembly is placed on the door body to avoid accidental touching of the switch button, and a cavity arranged near the rear edge for installing the switch assembly is provided in the door body, and the cavity is sealed by a cover plate at the top. However, in actual application, it is found that since there is at least one hot water washing process during the washing of tableware, the temperature in the door body rises and falls intermittently, and the sealing requirements of the above-mentioned cavity are very high, which easily causes the air carrying water vapor in the door body to invade the cavity, causing adverse effects on the switch assembly. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cleaning machine capable of adaptively adjusting the air pressure in the installation cavity of a switch assembly so as to maintain sealing and prevent the intrusion of external water vapor 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 cleaning machine includes a water tank, a door body and a switch assembly, wherein the rear edge of the door body is rotatably connected to the rear edge of the open top of the water tank, the door body forms a hollow cavity, and an installation cavity independent of the cavity and used for installing the switch assembly is provided in the cavity, and a retractable airbag is provided on the side wall of the installation cavity, the airbag is communicated with the installation cavity, and the retractable part of the airbag is located outside the installation cavity.

[0007] The present invention provides an installation cavity which is relatively independent of the cavity body and an airbag which is connected to the side of the installation cavity in the door body. During the washing process, the temperature in the door body is too high, which will cause the air pressure in the installation cavity to increase, thereby squeezing part of the air in the installation cavity into the airbag, and the retractable part of the airbag swells and extends outside the installation cavity; when the temperature in the door body returns to normal, the air pressure in the installation cavity decreases, the airbag shrinks and the air therein is recovered into the installation cavity; this process realizes the self-adaptation of the air pressure in the installation cavity through the extension and contraction of the airbag, thereby always maintaining the sealing of the installation cavity, avoiding air exchange between the installation cavity and the outside world and bringing water vapor into the installation cavity, and ensuring the dryness and stability of the environment in the installation cavity.

[0008] Preferably, a transition cavity is provided in the cavity of the door body, which is located beside the installation cavity and relatively independent of the cavity, and an air guide channel is provided on the side of the installation cavity, which is connected to the transition cavity. The airbag is provided at the edge of the door body and is connected to the transition cavity. The provision of the transition cavity provides a gas transition space between the installation cavity and the airbag, which is conducive to improving the air pressure balance effect in the installation cavity.

[0009] Preferably, the transition cavity extends along the side edge of the installation cavity, the air guide channel is arranged near the inner edge of the transition cavity, and the connection between the airbag and the transition cavity is arranged near the outer edge of the transition cavity. With the above structure, the transition cavity is relatively far away from the connection between the installation cavity and the airbag, which is conducive to improving the air pressure balance effect through the transmission of airflow.

[0010] Preferably, a partition is provided in the middle of the transition chamber to separate it into a first part and a second part, the air guide channel is connected to the first part, the air bag is connected to the second part, and an air guide port for gas to pass through is provided on the partition. The above structure reduces the flow rate of the airflow in the transition chamber, which is conducive to further improving the air pressure balance effect.

[0011] Preferably, the side wall of the transition cavity is provided with an installation opening extending along the rear edge of the door body, the head of the airbag is embedded in the installation opening and communicates with the transition cavity, and the tail of the airbag is a retractable part located outside the installation opening. The above structure is to enable the retractable part of the airbag to communicate with the outside world without affecting the sealing performance with the door body cavity, so as to transmit the space adjustment required in the process of air pressure balancing of the installation cavity to the outside world, thereby improving the air pressure balancing effect.

[0012] Preferably, a protective cavity is provided at the rear edge of the door body to surround the airbag, and the end of the protective cavity is connected to the outside air. This structure can not only conveniently accommodate the retractable part of the airbag, but also protect the airbag to avoid damage caused by direct exposure to the air.

[0013] As an improvement, a ventilation mechanism is provided in the cavity of the door body to exchange gas between the cavity and the outside. When the temperature in the door body is too high, the door body can be ventilated through the ventilation mechanism to reduce the temperature in the door body and avoid damage to the functional parts installed in the door body due to excessive temperature.

[0014] Preferably, the door body is also provided with a micro switch which can be triggered in the airbag extension state and not triggered in the airbag contraction state. The micro switch is linked with the ventilation mechanism. The micro switch is used to start the ventilation mechanism in the triggered state, and the micro switch does not start the ventilation mechanism in the non-triggered state. With the above structure, the airbag provides an air storage space for balancing the air pressure on the one hand, and on the other hand, the airbag forms a trigger switch for the ventilation mechanism as the air pressure increases due to high temperature. When the airbag extends to the set stroke (the temperature is too high and the extension degree is large), the ventilation mechanism is started as a temperature detection function, thereby automatically ventilating the inner cavity of the door body to reduce the temperature and provide protection for various functional parts in the door body.

[0015] Preferably, the micro switch is arranged outside the retractable part of the airbag, and the triggering part of the micro switch is arranged toward the airbag. This structure facilitates triggering or not of the micro switch as the airbag is extended or retracted.

[0016] Preferably, the ventilation mechanism includes an air duct and a fan, the fan is arranged in the cavity of the door body and the air inlet is connected to the cavity, the air inlet end of the air duct is connected to the air outlet of the fan, the air outlet end of the air duct is located at the edge of the door body, and a gap is formed at the edge of the door body for outside air to enter the cavity. When the ventilation mechanism is turned on, the fan is running, and the hot air in the door body cavity can be quickly drawn out to the outside of the door, and the outside air is forced to enter the door body through the gap to achieve ventilation and reduce the temperature in the door body. During the ventilation process, there will be interactive changes in air pressure, and the installation cavity will not be affected by the interactive changes in air pressure because it is relatively independent of the door body cavity and the airbag is used to achieve independent pressure regulation, so it will always maintain the balance of air pressure in the installation cavity, forming a good protection for the switch assembly.

[0017] Compared with the prior art, the advantages of the present invention are: the present invention provides an installation cavity which is relatively independent of the cavity body and an airbag connected to the side of the installation cavity in the door body; during the washing process, the temperature in the door body is too high, which will cause the air pressure in the installation cavity to increase, thereby squeezing part of the air in the installation cavity into the airbag, and the retractable part of the airbag bulges and extends outside the installation cavity; when the temperature in the door body returns to normal, the air pressure in the installation cavity decreases, the airbag shrinks and the air therein is recovered into the installation cavity; this process realizes the self-adaptation of the air pressure in the installation cavity through the extension and contraction of the airbag, thereby always maintaining the sealing of the installation cavity, avoiding air exchange between the installation cavity and the outside world and bringing water vapor into the installation cavity, and ensuring the dryness and stability of the environment in the installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a door body according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A partial cross-sectional view of

[0020] Figure 3 It is a cross-sectional view of the door body of an embodiment of the present invention (top view, airbag deflated state);

[0021] Figure 4 It is a cross-sectional view of the door body of an embodiment of the present invention (top view, airbag extended state). DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown, the cleaning machine of this embodiment includes a water tank (not shown in the figure), a door body 1 and a switch assembly 2. The rear edge of the door body 1 is rotatably connected to the rear edge of the open top of the water tank. The door body 1 forms a hollow cavity 10. The cavity 10 is provided with an installation cavity 11 which is independent of the cavity 10 and is used to install the switch assembly 2. The side wall of the installation cavity 11 is provided with a retractable airbag 3, which is connected to the installation cavity 11. The retractable part of the airbag 3 is located outside the installation cavity 11.

[0024] In the present embodiment, an installation cavity 11 which is relatively independent of the cavity 10 and an airbag 3 which is connected to the side of the installation cavity 11 are provided in the door body 1. During the washing process, the temperature in the door body 1 is too high, which will cause the air pressure in the installation cavity 11 to increase, thereby squeezing part of the air in the installation cavity 11 into the airbag 3, and the retractable part of the airbag 3 swells and extends outside the installation cavity 11; when the temperature in the door body 1 returns to normal, the air pressure in the installation cavity 11 decreases, the airbag 3 shrinks and the air therein is recovered into the installation cavity 11; this process realizes the self-adaptation of the air pressure in the installation cavity 11 through the extension and contraction of the airbag 3, thereby always maintaining the sealing of the installation cavity 11, avoiding air exchange between the installation cavity 11 and the outside world to bring water vapor into the installation cavity 11, and ensuring the dryness and stability of the environment in the installation cavity 11.

[0025] The cavity 10 of the door body 1 is provided with a transition cavity 12 which is located beside the installation cavity 11 and is relatively independent of the cavity 10. The side of the installation cavity 11 is provided with an air guide channel 111 which is connected with the transition cavity 12. The airbag 3 is provided at the edge of the door body 1 and is connected with the transition cavity 12. The transition cavity 12 is provided to provide a gas transition space for the installation cavity 11 and the airbag 3, which is conducive to improving the air pressure balance effect in the installation cavity 11.

[0026] The transition chamber 12 extends along the side edge of the installation chamber 11, the air guide channel 111 is arranged near the inner edge of the transition chamber 12, and the connection between the airbag 3 and the transition chamber 12 is arranged near the outer edge of the transition chamber 12. With the above structure, the transition chamber 12 is relatively far away from the connection between the installation chamber 11 and the airbag 3, which is conducive to improving the air pressure balance effect through the transmission of airflow.

[0027] A partition 14 is provided in the middle of the transition chamber 12 to separate it into a first part 121 and a second part 122. The air guide channel 111 is connected to the first part 121, and the air bag 3 is connected to the second part 122. An air guide port 141 for gas to pass through is provided on the partition 14. The above structure reduces the flow rate of the airflow in the transition chamber 12, which is conducive to further improving the air pressure balance effect.

[0028] The side wall of the transition cavity 12 is provided with an installation opening 15 extending along the rear edge of the door body 1, the head 31 of the airbag 3 is embedded in the installation opening 15 and communicated with the transition cavity 12, and the tail 32 of the airbag 3 is a retractable part located outside the installation opening 15. The above structure is to make the retractable part of the airbag 3 communicate with the outside without affecting the sealing performance with the cavity 10 of the door body 1, so as to transmit the space adjustment required in the process of air pressure balance of the installation cavity 11 to the outside, thereby improving the air pressure balance effect.

[0029] A protective cavity 16 is provided at the rear edge of the door body 1 to surround the airbag 3, and the end of the protective cavity 16 is connected to the outside air. This structure can not only conveniently accommodate the retractable part of the airbag 3, but also protect the airbag 3 from being directly exposed to the air and damaged.

[0030] The cavity 10 of the door body 1 is provided with a ventilation mechanism 4 capable of exchanging gas between the cavity 10 and the outside. When the temperature in the door body 1 is too high, the door body 1 can be ventilated by the ventilation mechanism 4 to reduce the temperature in the door body 1 and avoid damage to the functional parts installed in the door body 1 due to excessive temperature.

[0031] The door body 1 is also provided with a micro switch 5 which can be triggered when the airbag 3 is extended and not triggered when the airbag 3 is contracted. The micro switch 5 is linked with the ventilation mechanism 4. The micro switch 5 is used to start the ventilation mechanism 4 in the triggered state, and the micro switch 5 does not start the ventilation mechanism 4 in the non-triggered state. With the above structure, the airbag 3 provides an air storage space for balancing the air pressure on the one hand, and on the other hand, the airbag 3 forms a trigger switch for the ventilation mechanism 4 as the air pressure increases due to high temperature. When the airbag 3 is extended to the set stroke (the temperature is too high and the extension degree is large), the ventilation mechanism 4 is activated as a temperature detection function part, thereby automatically ventilating the inner cavity of the door body 1 to reduce the temperature and provide protection for various functional parts in the door body 1.

[0032] The micro switch 5 is arranged outside the telescopic part of the air bag 3, and the triggering part 51 of the micro switch 5 is arranged toward the air bag 3. This structure facilitates the triggering of the micro switch 5 as the air bag 3 is extended or retracted.

[0033] The ventilation mechanism 4 includes an air duct 41 and a fan 42. The fan 42 is arranged in the cavity 10 of the door body 1 and the air inlet 421 is connected to the cavity 10. The air inlet end of the air duct 41 is connected to the air outlet of the fan 42. The air outlet end 411 of the air duct 41 is located at the edge of the door body 1. A gap is formed at the edge of the door body 1 for the outside air to enter the cavity 10. When the ventilation mechanism 4 is turned on, the fan 42 is in operation, and the hot air in the cavity 10 of the door body 1 can be quickly drawn out of the door body 1. The outside air is forced to enter the door body 1 through the gap to achieve ventilation and reduce the temperature in the door body 1. In this ventilation process, there will be interactive changes in air pressure. Since the installation cavity 11 is relatively independent from the cavity 10 of the door body 1 and independent pressure regulation is achieved through the airbag 3, it will not be affected by the interactive changes in air pressure, thereby always maintaining the balance of air pressure in the installation cavity 11, forming a good protection for the switch assembly 2.

[0034] The door body 1 includes a main body 01 and a panel 02 covering the main body 01. The tops of the cavity 10 and the installation cavity 11 are open, and the panel 02 covers the main body 01 to close the cavity 10 and the installation cavity 11. The panel 02 and the main body 01 are sealed at the contact point by sealant or other means. The part of the panel 02 corresponding to the cavity 10 and the installation cavity 11 can be integrated or split, and the drawings of this embodiment show a split structure.

[0035] During the washing process of the cleaning machine, as the temperature in the door body 1 increases, the air pressure in the installation cavity 11 increases, and part of the air in the installation cavity 11 is squeezed into the airbag 3. The retractable part of the airbag 3 swells and stretches outside the installation cavity 11, thereby balancing the air pressure in the installation cavity 11 to prevent the air pressure from being too high and protruding or damaging the seal; in the above process, if the temperature in the door body 1 rises to or exceeds the set value, the airbag 3 forms a trigger switch of the ventilation mechanism 4 as the air pressure increases due to the high temperature, that is, when the airbag 3 stretches to the set stroke (the temperature is too high and the extension degree is very large), the ventilation mechanism 4 is started as a temperature detection function part, thereby automatically ventilating the inner cavity of the door body 1 to reduce the temperature and provide protection for the functional parts in the door body 1; when the temperature in the door body 1 returns to normal, the air pressure in the installation cavity 11 decreases, the airbag 3 shrinks and the air therein is recovered to the installation cavity 11.

[0036] 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 cleaning machine, comprising a water tank, a door body and a switch assembly, wherein the rear edge of the door body is rotatably connected to the rear edge of the open top of the water tank, characterized in that: The door body forms a hollow cavity, in which an installation cavity is provided which is independent of the cavity and used to install the switch assembly. A retractable airbag is provided on the side wall of the installation cavity. The airbag is connected to the installation cavity, and the retractable part of the airbag is located outside the installation cavity.

2. The cleaning machine according to claim 1, characterized in that: The cavity of the door body is provided with a transition cavity located beside the installation cavity and relatively independent of the cavity, the side of the installation cavity is provided with an air guide channel connected with the transition cavity, and the airbag is arranged at the edge of the door body and connected with the transition cavity.

3. The cleaning machine according to claim 2, characterized in that: The transition cavity extends along the side edge of the installation cavity, the air guide channel is arranged close to the inner edge of the transition cavity, and the connection point between the airbag and the transition cavity is arranged close to the outer edge of the transition cavity.

4. The cleaning machine according to claim 3, characterized in that: A partition is provided in the middle of the transition cavity to separate it into a first part and a second part. The air guide channel is connected to the first part, the air bag is connected to the second part, and an air guide port for gas to pass through is opened on the partition.

5. The cleaning machine according to claim 2, characterized in that: The side wall of the transition cavity is provided with an installation opening extending along the rear edge of the door body, the head of the airbag is embedded in the installation opening and communicated with the transition cavity, and the tail of the airbag is a retractable part located outside the installation opening.

6. The cleaning machine according to claim 5, characterized in that: A protective cavity capable of surrounding the airbag is arranged at the rear edge of the door body, and the end of the protective cavity is connected with the outside air.

7. The cleaning machine according to any one of claims 1 to 6, characterized in that: The cavity of the door body is provided with a ventilation mechanism capable of exchanging gases between the cavity and the outside.

8. The cleaning machine according to claim 7, characterized in that: The door body is also provided with a micro switch which can be triggered when the airbag is in an extended state but not triggered when the airbag is in a contracted state. The micro switch is linked with the ventilation mechanism. The micro switch is used to start the ventilation mechanism in a triggered state, and does not start the ventilation mechanism in a non-triggered state.

9. The cleaning machine according to claim 8, characterized in that: The micro switch is arranged on the outer side of the telescopic part of the air bag, and the triggering part of the micro switch is arranged toward the air bag.

10. The cleaning machine according to claim 7, characterized in that: The ventilation mechanism includes an air duct and a fan. The fan is arranged in the cavity of the door body and the air inlet is connected to the cavity. The air inlet end of the air duct is connected to the air outlet of the fan. The air outlet end of the air duct is located at the edge of the door body. A gap is formed at the edge of the door body for outside air to enter the cavity.

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