Drawer-type dishwasher and control method

Abstract

The application discloses a drawer type dish washing machine, which comprises a box with an opening on one side; a drawer which is pulled out or pushed into the box through the opening; a drawer automatic opening device which comprises a driving mechanism and a flexible stretching mechanism; the driving mechanism is arranged on the top wall of the box near the opening side, one end of the flexible stretching mechanism is connected with the driving mechanism, and the other end is connected with the rear wall of the drawer; the driving mechanism controls the flexible stretching mechanism to curl in the direction of approaching the opening of the box to automatically open the drawer. After the washing step is finished, the drawer automatic opening device is started; the driving mechanism controls the flexible stretching mechanism to curl in the direction of approaching the opening of the box to automatically open the drawer. The dish washing machine can automatically open for drying treatment after washing dishes, and the automation degree is high; and the flexible stretching mechanism can be stretched and blocked at the opening of the drawer to prevent water from splashing on the top wall of the box during the washing step.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to a drawer-type dishwasher and its control method. Background Technology

[0002] In recent years, with the improvement of living standards, dishwashers have become increasingly popular in people's daily lives, gradually becoming an indispensable appliance in the kitchen. However, due to the increasing variety and quantity of dishwashers on the market, consumers' quality requirements for dishwashers are also getting higher and higher. After washing dishes, the dishwasher needs to dry them, which requires removing the humid air inside the inner drum. Therefore, during the drying stage, it is necessary to convert the humid air inside the washing chamber (inner drum) into dry air to achieve the purpose of drying the dishes. In existing technology, solutions for converting the humid air inside the washing chamber into dry air include some dishwashers using a condensation system. This system uses a condenser pipe to condense the humid air using natural convection and then returns it to the washing chamber to dry the air inside. Specifically, the humid hot air from the washing chamber exchanges heat with the outside air through the condenser chamber wall. The humid hot air is condensed into water droplets and flows back to the bottom of the washing chamber, achieving the purpose of drying. However, this method requires heat exchange through the condenser chamber wall, which further reduces the drying efficiency.

[0003] Chinese patent application CN201510057792.0 discloses a dishwasher condensation drying system and method, a dishwasher, and specifically discloses an inner tub and the washing chamber formed by the inner tub. The condensation drying system includes an exhaust device and a collection chamber for collecting gas in the washing chamber. The collection chamber has an air outlet. The exhaust device includes a housing and a fan installed inside the housing. One end of the housing is connected to the outside atmosphere, and the other end is connected to the condensation chamber. The air outlet of the collection chamber is connected to the housing. The fan is located at the end of the housing away from the condensation chamber and the air outlet. An openable air-blocking device is provided at the air outlet. When the air-blocking device is opened, the collection chamber is connected to the housing, and the fan can introduce outside air and moisture from the washing chamber into the condensation chamber. This system allows both cold, dry outside air and hot, moist inside air to enter the condensation chamber, greatly improving drying and condensation efficiency. However, similar methods require many components and consume a lot of energy, which is not environmentally friendly.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a drawer-type dishwasher and control method. The drawer-type dishwasher has a simple structure and can automatically open the drawer for drying after washing the dishes. At the same time, after the drawer is closed and the washing program is started, the flexible extension mechanism can be well extended to prevent water stains from staying and accumulating on the top wall of the dishwasher body, thus effectively avoiding corrosion of the top and bottom walls of the body.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A drawer-type dishwasher includes a cabinet with an opening on one side; a drawer that can be pulled out or pushed into the cabinet through the opening; and an automatic drawer opening device including a drive mechanism and a flexible extension mechanism.

[0008] Furthermore, the drive mechanism is located on the top wall of the cabinet near the opening side, and one end of the flexible extension mechanism is connected to the drive mechanism, while the other end is connected to the rear wall of the drawer; the drive mechanism automatically opens the drawer by controlling the flexible extension mechanism to curl in a direction closer to the opening of the cabinet.

[0009] Furthermore, the top of the drawer is open, and the flexible extension mechanism includes a flexible extension member having a flexible sealing body that can cover the open top of the drawer.

[0010] Preferably, one end of the flexible extension member is connected to the drive mechanism, and the other end is connected to the upper edge of the rear wall of the drawer; the drive mechanism automatically opens the drawer by controlling the flexible extension member to curl in a direction closer to the opening of the box.

[0011] Furthermore, the length of the flexible sealing body is greater than the length of the drawer opening, and the width of the flexible sealing body is greater than the width of the drawer opening.

[0012] Preferably, the flexible extension member further includes a water-stop layer made of a hydrophobic material disposed on the lower surface of the flexible sealing body.

[0013] Furthermore, the drive mechanism includes a power unit and a transmission unit. The transmission unit includes a transmission shaft with a certain extension length, and the extension direction of the transmission shaft is parallel to the edge of the top wall of the housing near the opening.

[0014] Preferably, along the length of the drive shaft, one end of the flexible sealing body is fixed to the rotating shaft, and the other end is connected to the upper edge of the rear wall of the drawer; the power unit controls the drive shaft to rotate in a direction closer to the opening of the box, so that the flexible sealing body curls on the outer peripheral wall of the drive shaft in a direction closer to the opening of the box, thereby pulling the drawer out from the opening.

[0015] More preferably, the length of the drive shaft is at least greater than the width of the top opening of the drawer.

[0016] Furthermore, the transmission unit also includes a stop mechanism disposed on the inner peripheral wall of the transmission shaft and engaging with the power unit, wherein the power unit drives the transmission shaft to rotate by driving the stop mechanism.

[0017] Preferably, the power unit includes a motor, the output end of which is connected to a motor shaft, and a pawl structure is provided on the motor shaft. The pawl structure cooperates with the stop mechanism to achieve power transmission.

[0018] More preferably, the drive shaft is hollow inside, and the motor shaft extends into the drive shaft and is coaxial with the drive shaft.

[0019] Furthermore, as the drawer is pushed into the box, the pawl structure disengages from the stop mechanism, and the flexible extension extends and seals above the drawer's top opening as the drawer is pushed in.

[0020] Another object of the present invention is to provide a control method for the above-mentioned drawer-type dishwasher, comprising: starting a washing program and performing a washing step; after the washing step is completed, activating an automatic drawer opening device; the drive mechanism controls the flexible extension mechanism to curl in a direction close to the opening of the cabinet to automatically open the drawer.

[0021] Furthermore, during the opening of the drawer, a water-shaking process is performed, which includes controlling the drawer to move intermittently to a fully open state according to set movement parameters.

[0022] Preferably, the movement parameters include the number of times the drawer moves, the distance of each movement, and the duration of each pause.

[0023] Furthermore, after the washing steps are completed, the drawer automatic opening device is activated again after a time interval T1.

[0024] Preferably, the T1 time is 3-10 minutes.

[0025] Furthermore, after the drawer is fully opened, a drying process is performed, which includes controlling the drawer to remain still for a time T2 before closing the drawer.

[0026] The T2 time is 30-60 minutes.

[0027] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] 1. The drawer-type dishwasher of this invention not only has a simple structure, but also automatically opens the drawer for drying after washing the dishes. At the same time, after the drawer is closed and the washing program is started, the flexible extension mechanism can be well extended to prevent water stains from staying and accumulating on the top wall of the dishwasher, thus effectively avoiding corrosion of the top and bottom walls of the dishwasher.

[0029] 2. The control method of the drawer-type dishwasher of the present invention includes a water-shaking process step on the basis of automatically opening the drawer. This not only realizes the automatic opening function of the drawer-type dishwasher, but also allows water droplets adhering to the side walls of the drawer and the tableware to fall off, thereby increasing the drying process.

[0030] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0031] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0032] Figure 1 This is a three-dimensional structural diagram of the drawer-type dishwasher in the open state according to an embodiment of the present invention. Figure 1 ;

[0033] Figure 2 This is a schematic diagram of one side of the drawer-type dishwasher in the open state according to an embodiment of the present invention;

[0034] Figure 3 This is a three-dimensional structural diagram of the drawer-type dishwasher in the open state according to an embodiment of the present invention. Figure 2 ;

[0035] Figure 4 This is a schematic diagram of the drawer-type dishwasher in the closed state in an embodiment of the present invention;

[0036] Figure 5 This is an unfolded view of the flexible extension member of the drawer-type dishwasher in the closed state according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the drive mechanism in the drawer-type dishwasher according to an embodiment of the present invention;

[0038] Figure 7 This is a cross-sectional schematic diagram of the interior of the drive mechanism of the drawer-type dishwasher in an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the implementation flow of the control method for a drawer-type dishwasher in an embodiment of the present invention. Figure 1 ;

[0040] Figure 9 This is a schematic diagram of the implementation flow of the control method for a drawer-type dishwasher in an embodiment of the present invention. Figure 2 .

[0041] In the picture:

[0042] 1. Drawer-type dishwasher;

[0043] 11. Box body; 111. Top wall;

[0044] 12. Drawer; 121. Back wall; 1211. Top edge;

[0045] 13. Drive mechanism;

[0046] 131. Power unit; 1311. Motor; 1312. Motor shaft; 1313. Pawl structure;

[0047] 132. Transmission unit; 1321. Transmission shaft; 1322. Stop mechanism;

[0048] 14. Flexible extension mechanism;

[0049] 141. Flexible extension component; 1411. Flexible sealing body.

[0050] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0052] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] During or after the washing process of the drawer-type dishwasher 1, water inevitably remains on the inner liner of the top wall 111 of the cabinet 11. After opening the drawer 12, the water remaining on the top cover will drip onto the chassis of the cabinet 11 due to vibration and gravity. If there is too much residual water, it will falsely trigger the overflow protection alarm. Even if the overflow protection alarm is not triggered, the residual water in the chassis will still cause corrosion and rust. This application not only automatically opens the door to improve the drying effect of the tableware, but the flexible extension mechanism 14 also avoids the problem of water dripping from the inner liner of the top wall 111 of the cabinet 11, causing false overflow alarms or corrosion of the bottom shell.

[0055] The present invention will be further described in detail below with reference to the embodiments.

[0056] like Figure 1-9 As shown, a drawer-type dishwasher 1 includes a cabinet 11, a drawer 12, and an automatic drawer opening device. The cabinet 11 has an opening on one side. The drawer 12 is pulled out or pushed into the cabinet 11 through the opening. The automatic drawer opening device includes a drive mechanism 13 and a flexible extension mechanism 14.

[0057] Furthermore, such as Figure 4 and Figure 5As shown, the drive mechanism 13 is located on the top wall 111 of the box 11 near the opening side. One end of the flexible extension mechanism 14 is connected to the drive mechanism 13, and the other end is connected to the rear wall 121 of the drawer 12. The drive mechanism 13 automatically opens the drawer 12 by controlling the flexible extension mechanism 14 to curl in the direction closer to the opening of the box 11. At this time, the drive mechanism 13 drives the flexible extension mechanism 14, and the flexible extension mechanism 14 applies a force to the rear wall 121 of the drawer 12 in the direction of the opening of the box 11. The drawer 12 is pulled out of the box 11 via the guide rail at the bottom of the box 11.

[0058] like Figure 4 As shown, the top of the drawer 12 is open, and the flexible extension mechanism 14 includes a flexible extension member 141. The flexible extension member 141 has a flexible sealing body 1411 that can cover the open top of the drawer 12. This flexible extension member 141 or flexible sealing body 1411 can not only prevent water stains and splashing during the washing of dishes in the drawer-type dishwasher 1, but also effectively prevent water accumulation or storage on the top wall 111 of the cabinet 11, thereby further preventing water dripping onto the bottom of the cabinet 11, which may cause false overflow alarms or corrosion of the bottom shell.

[0059] Preferably, one end of the flexible extension member 141 is connected to the drive mechanism 13, and the other end is connected to the upper edge 1211 of the rear wall 121 of the drawer 12; the drive mechanism 13 automatically opens the drawer 12 by controlling the flexible extension member 141 to curl in a direction closer to the opening of the box body 11.

[0060] Furthermore, the length of the flexible sealing body 1411 is greater than the length of the drawer opening 12, and the width of the flexible sealing body 1411 is greater than the width of the drawer opening 12. The flexible extension 141 or the flexible sealing body 1411 can only effectively block and prevent dripping water when it completely covers the drawer opening 12.

[0061] Preferably, the flexible extension member 141 further includes a water-stopping layer made of a hydrophobic material disposed on the lower surface of the flexible sealing body 1411. The presence of a waterproof water-stopping layer on the flexible sealing body 1411 directly facing the drawer 12 opening further enhances the protection against water accumulation or retention on the top wall 111 of the cabinet 11, ensuring that no water droplets remain on the lower surface of the flexible sealing body 1411 after splashing.

[0062] like Figure 4 and 6As shown, the drive mechanism 13 further includes a power unit 131 and a transmission unit 132. The transmission unit 132 includes a transmission shaft 1321 with a certain extension length. The extension direction of the transmission shaft 1321 is parallel to the edge of the top wall 111 of the housing 11 near the opening.

[0063] Preferably, along the length of the drive shaft 1321, one end of the flexible sealing body 1411 is fixed to the rotating shaft, and the other end is connected to the upper edge 1211 of the rear wall 121 of the drawer 12. The power unit 131 controls the drive shaft 1321 to rotate towards the opening of the box 11, causing the flexible sealing body 1411 to curl onto the outer peripheral wall of the drive shaft 1321 towards the opening of the box 11, thereby pulling the drawer 12 out of the opening. The drive mechanism 13 also includes a housing, in which the power unit 131 and the transmission unit 132 are both disposed. To facilitate the operation of the flexible extension member 141 or the flexible sealing body 1411, a long strip-shaped notch is provided on the inner or lower side of the housing to facilitate the operation of the flexible extension member 141 or the flexible sealing body 1411. It should be understood that, in order to highlight the position of the drive shaft 1321 in the transmission unit 132 or drive mechanism 13, the figure directly shows the structural schematic diagram of the drive shaft 1321. Under normal circumstances, the drive shaft 1321 will be covered by the housing because the drive shaft 1321 is located inside the housing.

[0064] Even better, such as Figure 1 , Figure 3 and Figure 4 As shown, the length of the drive shaft 1321 is at least greater than the width of the top opening of the drawer 12. It should be understood that the extension direction of the drive shaft 1321 being parallel to the edge of the top wall 111 of the cabinet 11 near the opening allows the flexible sealing body 1411 to be well curled onto the outer peripheral wall of the drive shaft 1321, enabling the drawer 12 to be pulled out from the opening. This avoids the flexible sealing body 1411 being unbalanced or asymmetrically curled onto the outer peripheral wall of the drive shaft 1321, preventing the drawer 12 from being fully pulled out. At the same time, the length of the drive shaft 1321 cannot be too short; if it is too short, it cannot effectively curl the flexible sealing body 1411 onto its outer peripheral wall. Therefore, its length is at least greater than the width of the top opening of the drawer 12.

[0065] It should also be understood that when the power unit 131 malfunctions, the drawer 12 can be manually pulled out, and the flexible sealing body 1411 can also be well rolled up on the outer peripheral wall of the drive shaft 1321. Of course, the drive mechanism 13 may also not include the power unit 131, and only the drawer 12 can be manually pulled out or pushed in; this is not limited here.

[0066] like Figure 7 As shown, the transmission unit 132 further includes a stop mechanism 1322 disposed on the inner peripheral wall of the transmission shaft 1321, which abuts against the power unit 131. The power unit 131 drives the transmission shaft 1321 to rotate by driving the stop mechanism 1322. It should be understood that the stop mechanism 1322 here can be understood as a medium for power transmission.

[0067] Preferably, such as Figure 7 As shown, the power unit 131 includes a motor 1311, the output end of which is connected to a motor shaft 1312. A ratchet structure 1313 is provided on the motor shaft 1312. The ratchet structure 1313 cooperates with the stop mechanism 1322 to transmit power. When the motor shaft 1312 rotates counterclockwise, the specific structure of the ratchet structure 1313 ensures that the motor shaft 1312 can effectively cooperate with the stop mechanism 1322 to transmit power during counterclockwise rotation.

[0068] More preferably, the drive shaft 1321 is hollow inside, and the motor shaft 1312 extends into the interior of the drive shaft 1321 and is coaxial with the drive shaft 1321.

[0069] like Figure 4 and Figure 7As shown, further, when the drawer 12 is pushed into the housing 11, the pawl structure 1313 disengages from the stop mechanism 1322, and the flexible extension member 141 unfolds and seals above the top opening of the drawer 12 as the drawer 12 is pushed in. At this time, the power unit 131 does not provide power. Due to the external force (such as manually pushing the drawer 12, not driven by the power unit 131), the drive shaft 1321 rotates clockwise through the transmission of the flexible extension member 141. At this time, the flexible extension member 141 rotates off the drive shaft 1321, flattens out, and seals above the top opening of the drawer 12, preparing for subsequent washing of tableware. It should be understood that at this time, the pawl structure 1313 and the stop mechanism 1322 are in a disengaged state. The ability to achieve this function is determined by the individual structure or combined function of the pawl structure 1313 and the stop mechanism 1322, which is not limited here. However, it should be understood that the ratchet structure 1313 includes a ratchet pawl, and a limiting component is also provided between the ratchet pawl and the motor shaft 1312. The limiting component can only rotate counterclockwise within a certain range and cannot rotate clockwise, so the ratchet pawl can wrap around or be attached to the motor shaft 1312. When the motor 1311 starts (rotates counterclockwise), the ratchet pawl wrapped around or attached to the motor shaft 1312 will disengage from the stop mechanism 1322 as the motor shaft 1312 rotates, thereby increasing the power and driving the drawer 12 to open. At least two ratchet pawls are provided, and at least two corresponding stop mechanisms 1322 are also provided.

[0070] like Figure 8 As shown, another object of the present invention is to provide a control method for the above-mentioned drawer-type dishwasher 1, comprising: starting a washing program and performing a washing step; after the washing step is completed, activating an automatic opening device for the drawer 12; the drive mechanism 13 controls the flexible extension mechanism 14 to curl in a direction close to the opening of the cabinet 11 to automatically open the drawer 12.

[0071] like Figure 9 As shown, further, a water-shaking process is performed during the opening of the drawer 12. This water-shaking process includes controlling the drawer 12 to intermittently move to a fully open state according to set movement parameters. Preferably, the movement parameters include the number of times the drawer 12 moves, the distance of each movement, and the duration of each pause.

[0072] Furthermore, after the washing steps are completed, the automatic opening device of the drawer 12 is activated again after a time interval T1. Preferably, the time T1 is 3-10 minutes.

[0073] Furthermore, after drawer 12 is fully opened, a drying process is performed, which includes controlling the drawer 12 to remain still for a time T2 before closing it. The time T2 is 30-60 minutes.

[0074] The dishwasher can automatically open for drying after washing dishes, which is highly automated; and during the washing process, the flexible extension mechanism 14 can unfold and seal the opening of the drawer 12 to prevent water from splashing onto the top wall 111 of the cabinet 11.

[0075] Example 1

[0076] like Figure 1-9 As shown, a drawer-type dishwasher 1 includes a cabinet 11, a drawer 12, and an automatic drawer-opening device. The cabinet 11 has an opening on one side. The drawer 12 is pulled out or pushed into the cabinet 11 through the opening. The automatic drawer-opening device includes a motor 1311, a drive shaft 1321, and a flexible extension member 141. This embodiment does not include a drive mechanism 13 or a flexible extension mechanism 141.

[0077] like Figure 4 As shown, the top of the drawer 12 is open, and the flexible extension member 141 has a flexible sealing body 1411 that can cover the open top of the drawer 12. This flexible sealing body 1411 is a hydrophobic and waterproof layer made of hydrophobic material. This hydrophobic and waterproof layer not only prevents water stains and splashes during the washing process of the drawer-type dishwasher 1, but also effectively prevents water accumulation or storage on the top wall 111 of the cabinet 11, thereby further preventing water dripping onto the bottom of the cabinet 11, which could cause false overflow alarms or corrosion of the bottom shell. The length of the hydrophobic and waterproof layer is 10cm longer than the length of the drawer 12 opening, and the width of the hydrophobic and waterproof layer is 5cm wider than the width of the drawer 12 opening. The hydrophobic and waterproof layer can only effectively block and prevent dripping if it completely covers the drawer 12 opening.

[0078] like Figure 1-4 As shown, both the motor and the drive shaft 1321 are located on the top wall 111 of the housing 11 near the opening. The drive shaft 1321 has a certain extension length, and its extension direction is parallel to the edge of the top wall 111 near the opening. Figure 5-7As shown, the automatic drawer opening device 12 further includes a motor shaft 1312 connected to the output end of the motor 1311. A ratchet pawl is provided on the motor shaft 1312, and a stop mechanism 1322 is also provided on the inner peripheral wall of the transmission shaft 1321. The ratchet pawl and the stop mechanism 1322 cooperate to transmit power. The motor 1311 drives the transmission shaft 1321 to rotate via the motor shaft 1312 and the stop mechanism 1322. The transmission shaft 1321 is hollow inside, and the motor shaft 1312 extends into the interior of the transmission shaft 1321 and is coaxial with the transmission shaft 1321. Along the length of the drive shaft 1321, one end of the hydrophobic and waterproof layer is fixed to the rotating shaft, and the other end is connected to the upper edge 1211 of the rear wall 121 of the drawer 12. At this time, the motor 1311 drives the hydrophobic and waterproof layer, which applies a force to the rear wall 121 of the drawer 12 in the direction of the opening of the box 11. The drawer 12 is pulled out of the box 11 via the guide rail at the bottom of the box 11. It should be understood that the stop mechanism 1322 here can be understood as the medium for power transmission. At this time, the motor shaft 1312 rotates counterclockwise, and the specific structure of the pawl structure 1313 determines that when the motor shaft 1312 rotates counterclockwise, it can effectively cooperate with the stop mechanism 1322 to achieve power transmission.

[0079] Motor 1311 controls the drive shaft 1321 to rotate towards the opening of the housing 11, causing the hydrophobic and waterproof layer to curl onto the outer peripheral wall of the drive shaft 1321 in the direction of approaching the opening of the housing 11, thereby pulling the drawer 12 out of the opening. The length of the drive shaft 1321 is at least greater than the width of the top opening of the drawer 12. It should be understood that the extension direction of the drive shaft 1321 being parallel to the edge of the top wall 111 of the housing 11 near the opening allows the flexible sealing body 1411 to curl well onto the outer peripheral wall of the drive shaft 1321, enabling the drawer 12 to be pulled out of the opening. This avoids the hydrophobic and waterproof layer curling unbalancedly or asymmetrically onto the outer peripheral wall of the drive shaft 1321, preventing the drawer 12 from being fully pulled out. At the same time, the length of the drive shaft 1321 cannot be too short; if it is too short, it cannot curl the hydrophobic and waterproof layer well onto its outer peripheral wall, so its length is at least greater than the width of the top opening of the drawer 12.

[0080] like Figure 4As shown, drawer 12 is pushed into the cabinet 11, and the pawl structure 1313 disengages from the stop mechanism 1322. The hydrophobic and waterproof layer unfolds as drawer 12 is pushed in, sealing the top opening of drawer 12. At this time, motor 1311 does not provide power. Due to external force (such as manually pushing drawer 12, not driven by power unit 131), the drive shaft 1321 rotates clockwise via the transmission of flexible extension member 141. At this time, flexible extension member 141 rotates off the drive shaft 1321, flattens out, and seals the top opening of drawer 12, preparing for subsequent dishwashing. It should be understood that at this time, the pawl structure 1313 and stop mechanism 1322 are in a disengaged state. The ability to achieve this function is determined by the individual structure or combined function of the pawl structure 1313 and the stop mechanism 1322, which is not limited here. However, it should be understood that the ratchet structure 1313 includes a ratchet pawl, and a limiting component is also provided between the ratchet pawl and the motor shaft 1312. The limiting component can only rotate counterclockwise within a certain range and cannot rotate clockwise, so the ratchet pawl can wrap around or be attached to the motor shaft 1312. When the motor 1311 starts (rotates counterclockwise), the ratchet pawl wrapped around or attached to the motor shaft 1312 will disengage from the stop mechanism 1322 as the motor shaft 1312 rotates, thereby increasing the power and driving the drawer 12 to open. There are three ratchet pawls, and correspondingly, three stop mechanisms 1322 are also provided.

[0081] Example 2

[0082] To illustrate the technical solution of the control method of the drawer-type dishwasher 1 described above, specific embodiments will be used for explanation below.

[0083] like Figure 8 The diagram shown is a schematic representation of the control method for the drawer-type dishwasher 1 in an embodiment of the present invention. Figure 1 The main steps of this control method include: Step S20: Start the washing program and execute the washing steps.

[0084] It should be understood that the washing program of the drawer-type dishwasher 1 includes a washing step and an automatic drawer 12 opening step, wherein the automatic drawer 12 opening step also includes a water-shaking process. The washing step refers to the normal washing process or step of the dishes inside the drawer 12 after the drawer 12 is closed; the automatic drawer 12 opening step not only enables the dishwasher to automatically open for drying, but also incorporates a water-shaking process to remove water droplets adhering to the dishes or the inner wall of the drawer 12, facilitating the drying process. Simultaneously, during the dishwashing process, the flexible extension mechanism 14 can cover the top opening of the drawer 12 or adhere to the inner liner of the top wall 111 of the cabinet 11, effectively preventing water splashes from the dishwashing onto the top wall 111 of the cabinet 11, effectively avoiding water accumulation or storage on the top wall 111 of the cabinet 11, thereby further preventing water dripping onto the bottom of the cabinet 11, which could cause false overflow alarms or corrosion of the bottom shell.

[0085] Step S40: After the washing step is completed, activate the automatic opening device of drawer 12.

[0086] Step S60: The drive mechanism 13 controls the flexible extension mechanism 14 to curl in the direction close to the opening of the box 11 to automatically open the drawer 12.

[0087] Furthermore, such as Figure 9 As shown, during the opening of the drawer 12, a water-shaking process is performed. This water-shaking process includes: controlling the drawer 12 to intermittently move to a fully open state according to set movement parameters. Specifically:

[0088] Step S20: Start the washing program and perform the washing steps.

[0089] Step S40: After the washing step is completed, activate the automatic opening device of drawer 12.

[0090] Step S50: Perform the water shaking process.

[0091] Step S60: The drive mechanism 13 controls the flexible extension mechanism 14 to curl in the direction close to the opening of the box 11 to automatically open the drawer 12.

[0092] Preferably, the movement parameters include the number of times the drawer 12 moves, the distance of each movement, and the duration of each pause. Specifically: Step S20: Start the washing program and execute the washing steps.

[0093] Step S40: After the washing step is completed, the drawer 12 automatically opens after a time interval T1. It should be understood that the water used to wash dishes is generally at a high temperature. During the long washing process, a high temperature and water vapor are generated inside the drawer 12. The time interval T1 is to appropriately lower the temperature inside the drawer 12, reduce the amount of water vapor, and avoid potential harm to people or animals near the dishwasher after washing.

[0094] Step S501: Control the drawer 12 to move according to the set number of times the drawer 12 moves, the distance of each movement, and the duration of each pause. It should be understood that the settings for the number of times the drawer 12 moves, the distance of each movement, and the duration of each pause need to be determined according to different models or types of dishwashers, etc., and are not limited here.

[0095] Step S60: The drive mechanism 13 controls the flexible extension mechanism 14 to curl in the direction close to the opening of the box 11 to automatically open the drawer 12.

[0096] Step S70: After drawer 12 is fully opened, a drying process is performed. This drying process includes controlling the drawer 12 to remain still for a time T2 before closing it. This drying process can be understood as natural air drying. In fact, after the water-shaking process, the temperature and water droplets in the tableware or drawer 12 are already low or minimal, and direct natural air drying is sufficient to meet the usage requirements and save energy.

[0097] The following are more specific implementation steps for your reference. Figure 3 The movement shown is as follows: Step S401: After the washing step is completed, let it stand for 5 minutes.

[0098] Step S5011: Displace one-quarter of the total length of drawer 12 by distance D1, and let it stand for 3 minutes.

[0099] Step S5012: Displace one-quarter of the total length of drawer 12 by distance D2, and let stand for 3 minutes.

[0100] Step S5013: Displace one-quarter of the total length of drawer 12 by distance D3, and let stand for 3 minutes.

[0101] Step S5014: Displace one-quarter of the total length of drawer 12 by distance D4.

[0102] Step S60: The drive mechanism 13 controls the flexible extension mechanism 14 to curl in the direction close to the opening of the box 11 to automatically open the drawer 12.

[0103] Step S70: After drawer 12 is fully opened, drawer 12 is left to stand for 46 minutes, at which point the washing program ends.

[0104] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A drawer-type dishwasher, characterized in that, include: The enclosure has an opening on one side; The drawer is pulled out or pushed into the box through the opening; Automatic drawer opening device, including a drive mechanism and a flexible extension mechanism; The drive mechanism is located on the top wall of the cabinet near the opening side, and one end of the flexible extension mechanism is connected to the drive mechanism, while the other end is connected to the rear wall of the drawer. The drive mechanism automatically opens the drawer by controlling the flexible extension mechanism to curl in a direction closer to the opening of the cabinet.

2. The drawer-type dishwasher according to claim 1, characterized in that: The top of the drawer is open, and the flexible extension mechanism includes a flexible extension member with a flexible sealing body that can cover the top opening of the drawer. One end of the flexible extension member is connected to the drive mechanism, and the other end is connected to the upper edge of the rear wall of the drawer; the drive mechanism automatically opens the drawer by controlling the flexible extension member to curl in a direction closer to the opening of the box.

3. The drawer-type dishwasher according to claim 2, characterized in that: The length of the flexible sealing body is greater than the length of the drawer opening, and the width of the flexible sealing body is greater than the width of the drawer opening; The flexible extension also includes a water-stopping layer made of hydrophobic material disposed on the lower surface of the flexible sealing body.

4. The drawer-type dishwasher according to claim 2 or 3, characterized in that: The drive mechanism includes a power unit and a transmission unit. The transmission unit includes a transmission shaft with a certain extension length. The extension direction of the transmission shaft is parallel to the edge of the top wall of the housing near the opening. Along the length of the drive shaft, one end of the flexible sealing body is fixed to the drive shaft, and the other end is connected to the upper edge of the rear wall of the drawer; the power unit controls the drive shaft to rotate in a direction closer to the opening of the box, so that the flexible sealing body curls on the outer peripheral wall of the drive shaft in a direction closer to the opening of the box, thereby pulling the drawer out from the opening; The length of the drive shaft is at least greater than the width of the top opening of the drawer.

5. The drawer-type dishwasher according to claim 4, characterized in that: The transmission unit also includes a stop mechanism disposed on the inner peripheral wall of the transmission shaft that abuts against the power unit, and the power unit drives the transmission shaft to rotate by driving the stop mechanism. The power unit includes a motor, the output end of which is connected to a motor shaft. A pawl structure is provided on the motor shaft, and the pawl structure cooperates with the stop mechanism to achieve power transmission. The drive shaft is hollow inside, and the motor shaft extends into the drive shaft and is coaxial with the drive shaft.

6. The drawer-type dishwasher according to claim 5, characterized in that: As the drawer is pushed into the box, the pawl structure disengages from the stop mechanism, and the flexible extension member unfolds as the drawer is pushed in, sealing the top opening of the drawer.

7. The control method for a drawer-type dishwasher according to any one of claims 1 to 6, characterized in that, include: Start the washing program and begin the washing process; After the washing process is completed, the drawer automatic opening device is activated; The drive mechanism controls the flexible extension mechanism to curl in a direction closer to the opening of the cabinet, thereby automatically opening the drawer.

8. The control method for a drawer-type dishwasher according to claim 7, characterized in that, The process of opening the drawer involves a water-shaking process, which includes controlling the drawer to move intermittently to a fully open state according to set movement parameters. The movement parameters include the number of times the drawer moves, the distance of each movement, and the duration of each pause.

9. The control method for a drawer-type dishwasher according to claim 8, characterized in that, After the washing steps are completed, the drawer automatic opening device is activated again after a time interval of T1. The T1 time is 3-10 minutes.

10. The control method for a drawer-type dishwasher according to claim 8, characterized in that, After the drawer is fully opened, a drying process is performed, which includes controlling the drawer to remain still for a time T2 before closing the drawer. The T2 time is 30-60 minutes.

Images