Automatic door lock structure of cleaning machine

Abstract

An automatic door lock structure of a cleaning machine comprises a cleaning tank and a door body arranged at an end opening of the cleaning tank in an openable and closable mode, and is characterized in that a rack is arranged on the edge of the door body; an air suction port is formed in one side of the cleaning tank. The automatic door lock structure of the cleaning machine further comprises a draught fan, an air guide plate and a door locking mechanism. The door locking mechanism comprises a shell, a gear set and a motor, and the gear set is in one-way driving connection with the air deflector. The air deflector and the fan form an exhaust mechanism, the exhaust mechanism is matched with the door locking mechanism, water vapor coming out of a gap between the door body and the front side of the cleaning tank is exhausted through the exhaust mechanism at the moment of door jacking and cannot be sprayed out from the front side, and the hands of a user are not prone to being scalded when the user opens the door.

Description

Technical Field

[0001] The invention relates to a cleaning machine, in particular to an unlocking and locking structure of a door body of the cleaning machine. Background Art

[0002] At present, sink-type cleaning machines (also known as sink-type dishwashers) close their doors by inserting a lock hook into a door lock, and driving the top door through a motor. For relevant literature, please refer to the Chinese invention patent application disclosure with application number 201910166797.5 "A cleaning machine with a door that can automatically open and close" (application publication number CN111657815 A); you can also refer to the Chinese invention patent application disclosure with application number 202410079365.1 "Door lock, dishwasher and control method thereof" (application publication number CN118021234A).

[0003] There are the following shortcomings: first, the protruding lock hook of the door body is not good-looking and can easily hit people, and the hole for inserting the lock hook of the door lock faces upward and is easy to get water in; secondly, after the door is opened, water vapor will spray out quickly from the front side, and it is easy to burn your hands when opening the door at this time. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic door lock structure for a washing machine which is not easy to burn hands when opening the door in view of the above technical status.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: an automatic door lock structure of a cleaning machine, including a cleaning tank and a door body that can be opened and closed at the port of the cleaning tank, characterized in that the edge of the door body has a rack; one side of the cleaning tank has an air intake port, and the automatic door lock structure of the cleaning machine also includes a fan, an air guide plate and a door locking mechanism, the aforementioned fan is arranged on one side of the cleaning tank, and is used to discharge the water vapor in the cleaning tank, the aforementioned air guide plate can be rotatably arranged on the air intake port so as to open and close the air intake port; the aforementioned door locking mechanism includes

[0006] A housing, disposed on one side of the aforementioned cleaning tank;

[0007] A gear set is rotatably disposed in the aforementioned housing and comprises at least an input gear and an output gear, wherein the aforementioned output gear portion is exposed on the inner wall of the cleaning tank and can mesh with the rack for transmission; the gear set is unidirectionally drivenly connected to the aforementioned air guide plate; and

[0008] The motor can rotate forward and reverse and has an output shaft, on which a driving gear meshing with the input gear is disposed.

[0009] In order to control the opening and closing of the fan and the working state of the motor, a first magnet and a second magnet which is lower than the first magnet are provided on the side of the door body close to the rack. Correspondingly, a first sensor and a second sensor which can generate signals close to the first magnet and the second magnet are provided in the shell. The second sensor is lower than the first sensor. The first sensor and the second sensor can be linked with the motor and the fan.

[0010] Furthermore, the gear set includes an input gear, a first gear, a second gear and an output gear, the two ends of the aforementioned first gear are respectively meshed with the input gear and the second gear, the aforementioned second gear is meshed with the output gear, and the aforementioned first gear or second gear is connected to the air guide plate in a one-way transmission manner.

[0011] The housing is provided with a damper, which has a rotatable damping gear, which meshes with one of the input gear, the output gear, the first gear and the second gear. Due to the effect of the damping gear, the door body will not close slowly under the effect of gravity.

[0012] Furthermore, the second gear or the first gear has a first transmission gear that rotates coaxially, and correspondingly, the air guide plate has a first ratchet that rotates coaxially, and the first ratchet is adapted to be equipped with a second ratchet, and the second ratchet has a second transmission gear that rotates coaxially, and the second transmission gear is meshed with the aforementioned first transmission gear, and a compression spring is provided on one side of the aforementioned second transmission gear, and the compression spring always forces the second ratchet to move in the direction of the first ratchet.

[0013] Preferably, the number of the air guide plates is two and they are arranged on both sides of the gear set respectively. Correspondingly, both sides of the second gear or the first gear respectively have first transmission gears that rotate coaxially.

[0014] Preferably, one side of the door body is hinged to the cleaning tank port, and the other side is provided with the rack.

[0015] Preferably, the cleaning tank port has a step ring, and when the door body is in a closed state, the inner end surface of the door body is completely placed on the upper end surface of the step ring.

[0016] Preferably, the air intake port is opened on the inner wall of the cleaning tank and is located above the step ring.

[0017] Preferably, the output gear portion is exposed on the inner wall of the cleaning tank and is located above the step ring.

[0018] Preferably, the housing has an air intake port corresponding to the air intake port, and the air guide plate and the fan are arranged in the housing. In this way, the air guide plate, the fan and the door lock mechanism form an installation module, which is convenient for assembly and maintenance of the cleaning machine, and an exhaust channel is formed inside the housing.

[0019] Preferably, the housing has an exhaust port, and the air outlet of the fan is connected to the exhaust port.

[0020] Preferably, a water tank is provided on one side of the cleaning tank, and an exhaust port is provided on one side of the inner wall of the water tank, and the exhaust port can receive the airflow discharged from the exhaust port. The exhaust port is designed away from the operator to avoid damage to the operator.

[0021] Compared with the prior art, the advantages of the present invention are: the door lock is placed on the side, and the functions of opening the door and locking the door are realized through the rack on the side of the door lock, so that there is no need to open a hole at the bottom of the tank body, and it is less likely to get water than the original door lock installed at the bottom. The air guide plate and the air blower form an exhaust mechanism, and the exhaust mechanism cooperates with the door locking mechanism. At the moment of opening the door, the water vapor coming out of the gap between the door body and the front side of the cleaning tank is discharged through the exhaust mechanism instead of being sprayed out from the front side, so that the user is less likely to get burned when opening the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a state diagram of the embodiment when the door is opened.

[0023] Figure 2 for Figure 1 Magnified view of the middle portal.

[0024] Figure 3 for Figure 2 Exploded and enlarged view of part A in the middle.

[0025] Figure 4 for Figure 1 Schematic diagram of the structure from another perspective.

[0026] Figure 5 for Figure 4 Exploded diagram of .

[0027] Figure 6 It is an enlarged three-dimensional cross-sectional view of the embodiment when the door is opened.

[0028] Figure 7 for Figure 6 Enlarged view of part B in the middle.

[0029] Figure 8 This is an enlarged exploded view of the door locking mechanism.

[0030] Fig. 9 for Figure 8 An enlarged exploded view of the part after the shell is removed.

[0031] Fig.10 This is the state diagram of the embodiment when the door is closed.

[0032] Fig.11 It is an enlarged three-dimensional cross-sectional view of the embodiment when the door is closed.

[0033] Fig.12 for Fig.11 Enlarged view of part C in the middle.

[0034] Fig.13 This is the state diagram of the embodiment when the door is opened. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 , Figure 4 and Figure 5 As shown, the cleaning machine in this embodiment includes a cleaning tank 1b and a door body 3b that can be opened and closed and is arranged at the port of the cleaning tank 1b. A cleaning mechanism (not shown in the figure) is arranged in the cleaning tank 1b, which can be used to clean bowls and tableware. One side of the door body 3b is hinged to the port of the cleaning tank 1b through a hinge 4b, and a rack 31b is provided on the edge of the other side. The port of the cleaning tank 1b has a step ring 11b. When the door body 3b is in a closed state, the inner end face of the door body 3b is completely placed on the upper end face of the step ring 11b. A water tank 2b is arranged on one side of the cleaning tank 1b, and an exhaust port 21b is opened on one side of the inner wall of the water tank 2b.

[0037] Combination Figure 2 and Figure 3 As shown, the edge of the door body 3b has a rack 31b; one side of the cleaning tank 1b has an air intake port 12b, and the automatic door lock structure of the cleaning machine also includes a fan 4, an air guide plate 3 and a door locking mechanism. The fan 4 is arranged on one side of the cleaning tank 1b to discharge the water vapor in the cleaning tank 1b, and the air guide plate 3 can be rotatably arranged on the air intake port 12b so as to open and close the air intake port 12b.

[0038] Combination Figure 6 , Figure 7 , Figure 8 and Fig. 9 The door locking mechanism includes a housing 1, a gear set 2, a motor 5 and a damper 6.

[0039] The housing 1 is disposed on one side of the cleaning tank 1b; the housing 1 has an air intake port 13 corresponding to the air intake port 12b, and the air guide plate 3 and the fan 4 are disposed in the housing 1. The housing 1 has an exhaust port 14, and the air outlet end of the fan 4 is connected to the exhaust port 14, and the airflow discharged from the exhaust port 14 is discharged through the exhaust port. The housing in this embodiment includes a base 11 and a cover plate 12 disposed on the base 11.

[0040] The gear set 2 is arranged in the housing 1, and the gear set 2 includes an input gear 21, a first gear 22, a second gear 23 and an output gear 24. The two ends of the first gear 22 are respectively meshed with the input gear 21 and the second gear 23, the second gear 23 is meshed with the output gear 24, and the second gear 23 is connected to the air guide plate 3 in a one-way transmission manner.

[0041] The second gear 23 has a first transmission gear 25 that rotates coaxially. Correspondingly, the air guide plate 3 has a first ratchet 31 that rotates coaxially. The first ratchet 31 is equipped with a second ratchet 32. The second ratchet 32 ​​has a second transmission gear 33 that rotates coaxially. The second transmission gear 33 is meshed with the first transmission gear 25. In addition, a compression spring 34 is provided on one side of the second transmission gear 33. The compression spring 34 always forces the second ratchet 32 ​​to move toward the first ratchet 31. The air guide plate 3 is composed of two pieces and is arranged on both sides of the gear set 2. Correspondingly, the second gear 23 has a first transmission gear 25 that rotates coaxially on both sides. The output gear 24 is partially exposed on the inner wall of the cleaning tank 1b and is located above the step ring 11b and can mesh with the rack 31b for transmission. The gear set 2 is connected to the air guide plate 3 in a one-way driving manner.

[0042] A damper 6 is disposed in the housing 1 . The damper 6 has a rotatable damping gear 61 . The damping gear 61 is meshed with the input gear 21 .

[0043] The motor 5 can rotate forward and reversely and has an output shaft, on which a driving gear 51 meshing with the input gear 21 is disposed.

[0044] Combination Figure 3 , Figure 8 and Fig. 9 As shown, a first magnet c and a second magnet c which is lower than the first magnet c are provided on one side of the door body 3b close to the rack 31b. Correspondingly, a first sensor a and a second sensor a which can generate signals close to the first magnet c and the second magnet c are provided in the shell 1. The second first sensor a is lower than the first second sensor a. The first sensor a and the second sensor a can be linked with the motor.

[0045] Closed state:

[0046] When washing, the bowls or tableware are placed in the washing tank. When closing the door, when the door is closed to a certain degree, the rack contacts the output gear. At this time, the first sensor can sense the second magnet and generate a signal. At this time, the second sensor has no signal, the motor rotates counterclockwise, and the driving gear rotates counterclockwise synchronously. Through the transmission of the gear set, the output gear finally rotates counterclockwise and the door is automatically closed.

[0047] During the door closing process, the first transmission gear will rotate clockwise like the second gear, and the second transmission gear will rotate counterclockwise. Since the second transmission gear and the air guide plate are matched through the ratchet structure, when the second transmission gear rotates counterclockwise, the air guide plate will not rotate with it. If the second transmission gear rotates clockwise, the air guide plate will also rotate clockwise.

[0048] like Fig.10 , Fig.11 and Fig.12As shown, when the door is completely closed, the first sensor can sense a signal from the first magnet, and the second sensor can sense a signal from the second magnet, and the motor will self-lock to prevent the door from opening during the operation of the cleaning machine.

[0049] Top door status:

[0050] like Figure 6 and Figure 7 As shown in the figure, when the washing is completed and the drying state is entered, the motor is unlocked and rotates clockwise (it can also be turned on by the door opening key), the gear set rotates clockwise synchronously, and the door body is lifted up. At this time, the second sensor first changes from having a signal to having no signal, and the first sensor changes from having a signal to having no signal and then to having a signal, and the motor stops rotating and is not self-locking. Due to the effect of the damping gear, the door body will not slowly close under the effect of gravity. At this time, you can also close the door manually, or use the door closing key to close the door body.

[0051] When the door is pushed up, the second gear rotates clockwise, the first transmission gear also rotates clockwise like the second gear, the second transmission gear rotates counterclockwise, and the air guide plate rotates counterclockwise like the second transmission gear. When the air guide plate is slowly opened, the first sensor and the second sensor change from having a signal to having no signal at the same time, and the fan starts at this time. The water vapor coming out from between the door and the cleaning tank will immediately enter the shell from the air intake on the front side, and then the water vapor will be blown to the exhaust port of the sink next to it through the internal air duct under the action of the fan, and the water vapor will not go out directly from the front side. When the door is pushed up to the limit position, the motor stops rotating, the air guide plate is always in the open state, and the fan is always running to discharge the water vapor on the front side to help speed up the drying. If the user does not open the door, the fan will run for a certain period of time.

[0052] Door open status:

[0053] When the door is opened manually, the first sensor changes from having a signal to having no signal, the motor rotates counterclockwise for a certain period of time and then stops, closing the air guide plate. Fig.13 shown.

Claims

1. An automatic door lock structure for a cleaning machine, comprising a cleaning tank (1b) and a door body (3b) which can be opened and closed at the end of the cleaning tank (1b), characterized in that The edge of the door body (3b) is provided with a rack (31b); one side of the cleaning tank (1b) is provided with an air inlet (12b); the automatic door lock structure of the cleaning machine further comprises a fan (4), an air guide plate (3) and a door locking mechanism; the fan (4) is arranged on one side of the cleaning tank (1b) and is used to discharge the water vapor in the cleaning tank (1b); the air guide plate (3) is rotatably arranged on the air inlet (12b) and can open and close the air inlet (12b); the door locking mechanism comprises A housing (1) is disposed on one side of the cleaning tank (1b); A gear set (2) is rotatably disposed in the housing (1) and comprises at least an input gear (21) and an output gear (24), wherein the output gear (24) is partially exposed from the inner wall of the cleaning tank (1b) and is meshed with the rack (31b) for transmission; the gear set (2) is unidirectionally drivingly connected to the air guide plate (3); and The motor (5) can rotate forward and reverse and has an output shaft, on which a driving gear meshing with the input gear (21) is disposed.

2. The automatic door lock structure of a cleaning machine according to claim 1, characterized in that A first magnet (1c) and a second magnet (2c) which is lower than the first magnet (1c) are provided on one side of the door body (3b) close to the rack (31b). Correspondingly, a first sensor (1a) and a second sensor (2a) which can generate signals close to the first magnet (1c) and the second magnet (2c) are provided in the shell (1). The second sensor (2a) is lower than the first sensor (1a). The first sensor (1a) and the second sensor (2a) can be linked with the motor (5) and the fan (4).

3. The automatic door lock structure of a cleaning machine according to claim 1 is characterized in that The gear set (2) comprises an input gear (21), a first gear (22), a second gear (23) and an output gear (24); two ends of the first gear (22) are respectively meshed with the input gear (21) and the second gear (23); the second gear (23) is meshed with the output gear (24); and the first gear (22) or the second gear (23) is connected to the air guide plate (3) in a one-way transmission manner.

4. The automatic door lock structure of a cleaning machine according to claim 3 is characterized in that A damper (6) is arranged in the housing (1). The damper (6) has a rotatable damping gear (61). The damping gear (61) is meshed with one of the input gear (21), the output gear (24), the first gear (22) and the second gear (23).

5. The automatic door lock structure of a cleaning machine according to claim 3, characterized in that The second gear (23) or the first gear (22) has a first transmission gear (25) that rotates coaxially. Correspondingly, the air guide plate (3) has a first ratchet (31) that rotates coaxially. The first ratchet (31) is fitted with a second ratchet (32). The second ratchet (32) has a second transmission gear (33) that rotates coaxially. The second transmission gear (33) is meshed with the first transmission gear (25). In addition, a compression spring (34) is provided on one side of the second transmission gear (33). The compression spring (34) always forces the second ratchet (32) to move in the direction of the first ratchet (31).

6. The automatic door lock structure of a cleaning machine according to claim 5, characterized in that The air guide plates (3) are in two pieces and are arranged on both sides of the gear set (2). Correspondingly, both sides of the second gear (23) or the first gear (22) are provided with coaxially rotating first transmission gears (25).

7. The automatic door lock structure of a cleaning machine according to claim 1, characterized in that One side of the door body (3b) is hinged to the end of the cleaning tank (1b), and the other side is provided with the rack (31b).

8. The automatic door lock structure of a cleaning machine according to claim 1, characterized in that The cleaning tank (1b) port has a step ring (11b), and when the door body (3b) is in a closed state, the inner end surface of the door body (3b) is completely placed on the upper end surface of the step ring (11b).

9. The automatic door lock structure of a cleaning machine according to claim 8, characterized in that The air intake port (12b) is opened on the inner wall of the cleaning tank (1b) and is located above the step ring (11b).

10. The automatic door lock structure of a cleaning machine according to claim 8, characterized in that The output gear (24) is partially exposed on the inner wall of the cleaning tank (1b) and is located above the step ring (11b).

11. The automatic door lock structure of a cleaning machine according to claim 1, characterized in that The housing (1) is provided with an air intake port (13) corresponding to the air intake port (12b), and the air guide plate (3) and the fan (4) are arranged in the housing (1).

12. The automatic door lock structure of a cleaning machine according to claim 11, characterized in that The housing (1) has an exhaust port (14), and the air outlet end of the fan (4) is connected to the exhaust port (14).

13. The automatic door lock structure of a cleaning machine according to claim 12, characterized in that A water tank (2b) is provided on one side of the cleaning tank (1b), and an exhaust port (21b) is provided on one side of the inner wall of the water tank (2b). The exhaust port (21b) can receive the airflow discharged from the exhaust port (14).

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