Separation module, cleaning machine, working method of cleaning machine and storage medium

Abstract

The invention relates to a separation module which comprises a separation box with a cavity, an air outlet with an upward opening is formed in the separation box, a negative pressure opening connected with a fan is further formed in the upper portion of the separation box, a filter screen is arranged in the air outlet in a matched mode, and a driving mechanism used for driving the filter screen to act relative to the air outlet is further arranged on the separation box. The driving mechanism is in driving connection with the filter screen. According to the separation module, the filter screen can be effectively cleaned. The invention further relates to a cleaning machine applying the separation module and a working method of the cleaning machine, and when the cleaning machine conducts cleaning work, according to the set first interval time, the driving mechanism is controlled to drive the filter screen to rotate forwards and backwards so as to alternately conduct vertical swing action. According to the working method of the cleaning machine, the filter screen can be automatically cleaned in the using process, and the cleaning performance of the filter screen is guaranteed. The invention further relates to a storage medium in which computer instructions for executing the working method of the cleaning machine are stored.

Description

TECHNICAL FIELD

[0001] The present application relates to a separation module, a cleaning machine using the same and a working method thereof, and a storage medium. BACKGROUND

[0002] A separation module and a fan module are provided in a cleaning machine such as a scrubber, a vacuum cleaner or a sweeper. The separation module separates sewage and particles picked up by a sweeping module from air under the negative pressure of the fan module, and retains the sewage and particles to discharge clean air.

[0003] In order to achieve the filtering and separating effect, a filter screen is usually provided in the separation module. The filter screen is usually arranged at a gas discharge position of the separation module. Under the negative pressure of the fan module and the filtering effect of the filter screen, garbage is separated from air. However, in the filtering process, most of the garbage contacts the filter screen, and then falls into a dust box under the gravity of the garbage itself. However, fine dust, water droplets and fibers in the garbage adhere to the surface of the filter screen and the folding groove of the filter screen under the action of static electricity, which affects the separating and filtering effect of the filter screen, and reduces the negative pressure suction, resulting in a decrease in the cleaning power of the cleaning machine. In order to ensure the cleaning power, the user needs to clean and maintain the filter screen, which reduces the user experience. If the adhering objects are not cleaned and maintained in a use cycle, bacteria will breed in a dirty and humid environment, which further damages the structure of the filter screen. Frequent disassembly and maintenance of the filter screen also reduce the service life of the filter screen, so that the user needs to replace the filter screen in a short cycle, which increases the use cost.

[0004] In addition, the existing separation module in the cleaning machine cannot identify the stored garbage, and cannot distinguish heavy substances such as dust and hair, and viscous substances such as milk and fruit juice, resulting in sensor failure, misjudgment, frequent entry and exit of the sweeper robot into the base station for cleaning, waste of time and increase of the whole house cleaning time.

[0005] In addition, after the separation module separates the airflow, the composition of the gas after the filter screen cannot be identified, and the fan cannot be protected. SUMMARY

[0006] The first technical problem to be solved by the present application is to provide a separation module capable of effectively cleaning a filter screen.

[0007] The second technical problem to be solved by the present application is to provide a cleaning machine using the above separation module.

[0008] The third technical problem to be solved by the present application is to provide a working method of a cleaning machine capable of achieving self-cleaning of a filter screen during use and ensuring cleaning performance.

[0009] The fourth technical problem solved by the present application is to provide a storage medium storing computer instructions for executing the working method of the cleaning machine.

[0010] The technical solution adopted by the present application to solve the first technical problem is a separation module, comprising a separation box with a cavity, wherein an air outlet opening upward is formed on the separation box, and a negative pressure port connected with a fan is further formed on the upper portion of the separation box, characterized in that a filter screen is matched and arranged in the air outlet, and a driving mechanism for driving the filter screen to move relative to the air outlet is further arranged on the separation box, and the driving mechanism is drivingly connected with the filter screen.

[0011] Preferably, the filter screen is reversibly arranged in the air outlet, and the driving end of the driving mechanism is drivingly connected with the filter screen to reversibly turn the filter screen relative to the air outlet.

[0012] In order to conveniently obtain the water level information in the separation box, a water level sensor is arranged in the separation box.

[0013] Preferably, the water level sensor comprises a first light detector arranged in the separation box and a first reflector for realizing light reflection, and the first light detector comprises a plurality of groups of light detection units arranged in the height direction, and each group of light detection units comprises a first light emitter and a first light receiver.

[0014] In order to avoid that the water in the separation box enters the fan and affects the performance of the fan when the filter screen is driven to flap the water in the separation box, a cover plate is arranged on the separation box and is opened and closed sliding relative to the negative pressure port, and the cover plate is drivingly connected with the driving mechanism.

[0015] In order to ensure the stability of the sliding of the cover plate, a guide groove is arranged on the outer periphery of the negative pressure port, and the cover plate is movably positioned in the guide groove.

[0016] Preferably, the cover plate is drivingly connected with the driving mechanism through a transmission assembly.

[0017] The structure is simple, the driving mechanism comprises a motor, a worm connected with the driving end of the motor, a worm wheel meshingly connected with the worm, and the worm wheel is connected with the filter screen.

[0018] Preferably, the transmission assembly comprises a lead screw connected with the end portion of the worm, a moving seat screwed on the lead screw, and a toggle connected with the moving seat, and the toggle is connected with the end portion of the cover plate.

[0019] In order to provide a guide for the toggle, a guide seat is arranged on the separation box, and the toggle is movably positioned on the guide seat.

[0020] In order to better obtain the type of the current collected garbage, and then carry out adaptive cleaning, a garbage sensor for detecting the type of the garbage is arranged in the negative pressure port.

[0021] Alternatively, the garbage sensor is a camera, or the garbage sensor comprises a second light detector and a second mirror for realizing light reflection, and the second light detector comprises a second light emitter and a second light receiver.

[0022] The technical scheme adopted by the present application to solve the second technical problem is: a cleaning machine comprising a machine shell and a fan arranged in the machine shell, characterized in that: the cleaning machine further comprises the separation module as described above, and the negative pressure port in the separation module is matched and docked with the inlet of the fan.

[0023] The technical scheme adopted by the present application to solve the third technical problem is: a working method of a cleaning machine, characterized in that: the working method is performed by using the cleaning machine as described above.

[0024] The working method of the cleaning machine is: when the cleaning machine performs cleaning work, the driving mechanism is controlled to drive the filter screen to alternately perform up-and-down swinging actions by forward rotation and reverse rotation at a set first interval.

[0025] Preferably, the angle of the driving mechanism driving the filter screen to rotate forward and reverse is less than or equal to 90°.

[0026] In order to clean the filter screen by using the water in the separation box, when the cleaning machine performs cleaning work, the water level in the separation box is detected in real time, and when the water level in the separation box reaches a set water level, the driving mechanism is controlled to drive the filter screen to alternately perform up-and-down swinging actions by forward rotation and reverse rotation.

[0027] As an improvement, when the water level in the separation box reaches or exceeds the set water level, the driving mechanism is controlled to drive the filter screen to alternately perform up-and-down swinging actions by forward rotation and reverse rotation at a set second interval.

[0028] As an improvement, a garbage sensor for detecting the type of the garbage is arranged in the negative pressure port.

[0029] When the cleaning machine works, the type of the currently collected garbage is detected and obtained based on the garbage sensor.

[0030] When it is judged that the type of the currently collected garbage is heavy substance type garbage, the driving mechanism is controlled to drive the filter screen to alternately perform up-and-down swinging actions by forward rotation and reverse rotation.

[0031] When it is judged that the type of the currently collected garbage is sticky substance type garbage, the cleaning machine is controlled to move to a base station matched therewith to remove the garbage in the separation box.

[0032] Otherwise, the cleaning machine is controlled to normally perform cleaning work.

[0033] The technical scheme adopted by the present application to solve the fourth technical problem is: a computer readable storage medium, characterized in that: the computer readable storage medium stores computer instructions, and the computer instructions are used to make a computer execute the working method of the cleaning machine.

[0034] Compared with the prior art, the advantages of the present application are that: the separation module in the present application can be applied in cleaning, and the separation module is provided with a driving mechanism for driving the filter screen to act on the basis of the filter screen, so that the driving action of the driving mechanism on the filter screen can better remove the dirt adhered to the filter screen, thereby reducing the blockage of the filter screen by hair, dust and other dirt, ensuring the low negative pressure suction force of the garbage, and further ensuring the cleaning power of the cleaning machine.

[0035] The working method of the corresponding cleaning machine can realize self-cleaning of the filter screen during use of the cleaning machine, ensure the cleaning performance of the cleaning machine, prolong the cleaning cycle of the filter screen, reduce the working intensity of the user, and prolong the service life of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a perspective view of the separation module in the embodiment of the present application.

[0037] Figure 2 It is another view of Figure 1 .

[0038] Figure 3 It is an exploded view of the separation module in the embodiment of the present application.

[0039] Figure 4 It is another view of Figure 3 .

[0040] Figure 5 It is an internal structure diagram of the cleaning machine in the embodiment of the present application. DETAILED DESCRIPTION

[0041] The present application will be further described in detail below in combination with the embodiment of the drawings.

[0042] As shown in Figures 1 to 5 , the present embodiment relates to a separation module and a cleaning machine applying the separation module. The cleaning machine comprises a machine shell 200, a fan 100 arranged in the machine shell 200, and a separation module embedded in the top of the machine shell 200, the separation module being in communication with the fan 100, thereby forming a negative pressure in the separation module, so as to realize the collection of ground sewage, garbage and other dirt by the separation module.

[0043] As shown in Figures 1 to 4 , the present embodiment relates to a separation module and a cleaning machine applying the separation module. The cleaning machine comprises a machine shell 200, a fan 100 arranged in the machine shell 200, and a separation module embedded in the top of the machine shell 200, the separation module being in communication with the fan 100, thereby forming a negative pressure in the separation module, so as to realize the collection of ground sewage, garbage and other dirt by the separation module.As shown, the separation module in the embodiment includes a separation box 1, which has a chamber inside for collecting sewage, garbage and the like during the cleaning process. An air outlet is formed on the top of the separation box 1, which is arranged towards the top of the cabinet 200, and a filter screen 2 is arranged on the air outlet. The filter screen 2 can filter dust and sundries in the air flow discharged through the air outlet, so as to ensure the cleanliness of the air flow. A negative pressure port 11 connected with the fan 100 is also formed on the separation box 1, which is formed on the side wall of the separation box 1 and is connected with the inlet of the fan 100. During operation, the fan 100 forms a negative pressure in the chamber of the separation box 1, so as to realize the suction of sewage, garbage and the like. The suction air flow is filtered by the filter screen 2 and then discharged to the outside air. During the discharge of the air flow, dust and the like are inevitably mixed in the air flow. Under the filtering action of the filter screen 2, the dust is accumulated on the filter screen 2. After a long time, the amount of dust on the filter screen 2 increases, and hair and dust and the like are attached to the filter screen 2, which affects the negative pressure during operation. Therefore, the filter screen 2 needs to be cleaned. In the prior art, the filter screen 2 needs to be removed by the user for cleaning, which is relatively troublesome. In addition, frequent disassembly and cleaning also affects the service life of the filter screen 2.

[0044] In the embodiment, a driving mechanism 3 for driving the filter screen 2 to move relative to the air outlet is arranged on the separation box 1, and the driving mechanism 3 is drivingly connected with the filter screen 2. In this way, the filter screen 2 can be cleaned by the driving action of the driving mechanism 3. According to the specific structure of the filter screen 2, the driving form of the driving mechanism 3 to the filter screen 2 is arranged, so as to achieve the purpose of cleaning the dirt on the filter screen 2. In the embodiment, the filter screen 2 is arranged in the air outlet in a tiltable manner, and the driving end of the driving mechanism 3 is drivingly connected with the filter screen 2 to drive the filter screen 2 to tilt up and down relative to the air outlet. Based on the up-and-down tilting driving of the driving mechanism 3 to the filter screen 2, the filter screen 2 can be tilted and shaken, so as to clean the hair and dust on the filter screen 2.

[0045] The driving mechanism 3 includes a motor 31, a worm 32 connected to the driving end of the motor 31, and a worm wheel 33 meshingly connected with the worm 32. The output end of the worm wheel 33 is connected with the filter screen 2 based on the radial direction of the filter screen 2. In this way, when the filter screen 2 is driven to tilt up and down, the movement range of the filter screen 2 is still within the range of the air outlet. When the filter screen 2 is driven, the motor 31 is controlled to rotate forward and reverse, so as to drive the worm 32 to rotate. Based on the transmission action of the worm 32, the worm wheel 33 rotates, and in turn drives the filter screen 2 to tilt clockwise and counterclockwise.

[0046] In addition, the separation box 1 is provided with a water level sensor 4, which can adopt various water level detection mechanisms applicable to sewage boxes in the prior art. Simply, the water level sensor 4 in the embodiment includes a first light detector 41 oppositely arranged in the separation box 1 and a first mirror 42 for realizing light reflection. The first light detector 41 includes a plurality of groups of light detection units arranged in the height direction, and each group of light detection units includes a first light emitter 411 and a first light receiver 412. The water level in the separation box 1 is determined based on the light received by the first light receiver 412 in each group of light detection units, light intensity signals, etc. On the one hand, based on the detected water level information, it can be judged whether the sewage in the separation box 1 needs to be cleaned. On the other hand, after the water level in the separation box 1 reaches a certain height, the filter screen 2 can contact the water in the separation box 1 while being driven to flip, and then the water in the separation box 1 is used to further clean the filter screen 2, thereby improving the cleaning effect of the filter screen 2.

[0047] Also based on the use of water in the separation box 1 to clean the filter screen 2, it is easy to cause the water in the separation box 1 to shake, and then it is easy to cause the water in the separation box 1 to enter the fan 100 through the negative pressure port 11. In order to avoid the water in the separation box 1 from entering the fan 100 and affecting the performance of the fan 100, in the embodiment, a cover plate 5 is arranged on the separation box 1 and is opened and closed slidingly relative to the negative pressure port 11. The cover plate 5 is in transmission connection with the driving mechanism 3, and the outer periphery of the negative pressure port 11 is provided with a guide groove, and the cover plate 5 is movably positioned in the guide groove. Based on the positioning effect of the guide groove on the cover plate 5, the stability of the cover plate 5 during movement is ensured. In this way, when the driving mechanism 3 drives the filter screen 2 to flip, the cover plate 5 will also be driven to close all or part of the negative pressure port 11, thereby avoiding the water in the separation box 1 from entering the fan 100 based on the fluctuation. The sliding range of the cover plate 5 can be specifically determined according to the working method of the cleaning machine. If the working process of the cleaning machine is designed to clean the filter screen 2 when the cleaning machine does not perform cleaning work, the driving mechanism 3 can drive the cover plate 5 to quickly and completely cover the negative pressure port 11 based on a smaller driving path, thereby better covering the negative pressure port 11 and completely avoiding the water in the separation box 1 from entering the negative pressure port 11. If the working process of the cleaning machine is designed to clean the filter screen 2 while performing cleaning work, the driving mechanism 3 drives the cover plate 5 to cover part of the negative pressure port 11 after reaching the maximum driving path, thereby avoiding the water in the separation box 1 from entering the negative pressure port 11 as much as possible, but still being able to perform normal ground cleaning work.

[0048] The cover plate 5 is specifically in transmission connection with the driving mechanism 3 through a transmission assembly 6. The transmission assembly 6 comprises a screw rod 61 connected at the end of the worm 32, a moving seat 62 screwed on the screw rod 61, and a pushing piece 63 connected with the moving seat 62, the pushing piece 63 being connected with the end of the cover plate 5. In the embodiment, when the motor 31 rotates, the worm 32 and the worm gear 33 drive the filter core to overturn, the corresponding worm 32 drives the screw rod 61 to rotate, based on the rotation of the screw rod 61, the moving seat 62 moves to the closing direction of the cover plate 5, and in turn drives the pushing piece 63 to move to the closing direction of the cover plate 5, the cover plate 5 moves synchronously with the pushing piece 63, and in turn completely or partially closes the negative pressure port 11. When the motor 31 reverses, the cover plate 5 will correspondingly open the negative pressure port 11.

[0049] In addition, based on the negative pressure provided by the fan 100, when the ground garbage is sucked into the separation box 1, some small garbage will inevitably enter the negative pressure port 11. In the embodiment, a garbage sensor 7 for detecting the type of garbage is arranged in the negative pressure port 11. The type of the entering garbage is detected by the garbage sensor 7, and if the ground is cleaned, the operation can be adapted in real time according to the type of the garbage, so as to ensure the use performance of the filter screen 2. For example, when the garbage entering the negative pressure port 11 is hair, dust and other garbage, the garbage is easily attached to the filter screen 2 due to the electrostatic effect, at this time, the filter screen 2 can be cleaned in real time by overturning drive, and the normal cleaning of the ground is better ensured. When the garbage entering the negative pressure port 11 is fruit juice, milk and other sticky substances, if only the filter screen 2 is driven by overturning, the sticky substances cannot be effectively cleaned, at this time, the cleaning machine needs to be controlled to return to the base station or the user needs to manually clean the filter screen 2 in time, so as to avoid the sticky substances from being fixed on the filter screen 2 and affecting the negative pressure force of the fan 100, and in turn ensure the normal cleaning.

[0050] According to the need, the specific device of the garbage sensor 7 is selected, for example, the garbage sensor 7 can adopt a camera. In order to reduce the cost, the garbage sensor 7 in the embodiment comprises a second light detector 71 and a second reflector 72 for realizing light reflection, which are arranged in the negative pressure port 11. The second light detector 71 comprises a second light emitter and a second light receiver. When the type of the garbage entering the negative pressure port 11 is different, the medium characteristics in the negative pressure port 11 will be changed, and in turn the light intensity signal obtained by the second light receiver will be different, so that the type of the garbage entering the negative pressure port 11 is judged based on the light intensity signal obtained by the second light receiver.

[0051] The separation module in the application can be applied in cleaning. The separation module is provided with the driving mechanism 3 for driving the filter screen 2 to move. Thus, based on the driving movement of the driving mechanism 3 to the filter screen 2, the dirt adhered to the filter screen 2 can be better removed, so as to reduce the blockage of the filter screen 2 by the dirt such as hair and dust, ensure the low negative pressure suction force to the garbage, and further ensure the cleaning force of the cleaner.

[0052] The working method of the cleaner is as follows: when the cleaner is working, the driving mechanism 3 is controlled to drive the filter screen 2 to alternately perform the up-down swing movement by forward rotation and reverse rotation at a first interval time. Thus, based on the up-down swing movement of the filter screen 2, the dirt adhered to the filter screen 2 is shaken and cleaned.

[0053] Generally, the dirt is adhered to the inner surface of the filter screen 2. In order to more efficiently clean the dirt on the filter screen 2 on the basis of reducing the energy consumption of the motor 31, the driving mechanism 3 is controlled to drive the filter screen 2 to rotate forward and reverse by an angle less than or equal to 90°.

[0054] In order to fully utilize the water in the separation box 1 and improve the cleaning effect of the filter screen 2, when the cleaner is working, the water level in the separation box 1 is detected in real time. When the water level in the separation box 1 reaches a set water level, the driving mechanism 3 is controlled to drive the filter screen 2 to alternately perform the up-down swing movement by forward rotation and reverse rotation. The set water level is set according to the following standard: the water level can make the filter screen 2 contact the water in the separation box 1 when the filter screen 2 is turned over, and then the water in the separation box 1 can clean the dirt on the filter screen 2 when the filter screen 2 is turned over.

[0055] When the water level in the separation box 1 reaches or exceeds the set water level, the driving mechanism 3 is controlled to drive the filter screen 2 to alternately perform the up-down swing movement by forward rotation and reverse rotation at a second interval time. The size relationship between the second interval time and the first interval time is set according to the need. In the embodiment, the second interval time is greater than the first interval time. Because the water in the separation box 1 can clean the filter screen 2 better, the filter screen 2 does not need to be cleaned too frequently, and a longer time interval can be set to clean the filter screen 2.

[0056] In addition, in order to clean the filter screen 2 in time, effectively and pertinently according to the different types of garbage sucked in during the cleaning process of the cleaning machine, the cleaning machine detects the type of the garbage currently collected based on the garbage sensor 7 during the working process; when it is determined that the type of the garbage currently collected is heavy substance type garbage, the driving mechanism 3 is controlled to drive the filter screen 2 to rotate forward and reverse alternately to swing up and down, that is, the cleaning of the dirt on the filter screen 2 is realized by the shaking caused by the swinging of the filter screen 2. When it is determined that the type of the garbage currently collected is sticky substance type garbage, the cleaning machine is controlled to move to the base station matched therewith to clean the garbage in the separation box 1, and meanwhile, the filter screen 2 can be prompted to be cleaned. Otherwise, the cleaning machine is controlled to normally perform the cleaning work.

[0057] The working method of the cleaning machine in the application can realize the self-cleaning of the filter screen 2 during the use of the cleaning machine, ensure the cleaning performance of the cleaning machine, prolong the period of cleaning the filter screen 2 by the user, reduce the working strength of the user, and prolong the service life of the filter screen 2.

[0058] In the specification and claims of the present application, terms indicating directions, such as “front”, “back”, “up”, “down”, “left”, “right”, “side”, “top”, “bottom”, etc., are used to describe various example structural parts and elements of the present application, but these terms are used herein only for the purpose of convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only used for description and should not be regarded as limitation, for example, “up” and “down” are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A separation module, comprising a separation box (1) having a cavity, the separation box (1) being provided with an upwardly open air outlet, and the upper portion of the separation box (1) being further provided with a negative pressure port (11) connected with a fan (100), characterized in that: The filter screen (2) is reversibly arranged in the air outlet, and the driving end of the driving mechanism (3) is drivingly connected with the filter screen (2) to drive the filter screen (2) to reversibly turn up and down relative to the air outlet.

2. The separation module of claim 1, wherein: The water level sensor (4) is arranged in the separation box (1).

3. The separation module of claim 1, wherein: The water level sensor (4) comprises a first light detector (41) oppositely arranged in the separation box (1) and a first reflector (42) for realizing light reflection, and the first light detector (41) comprises a plurality of groups of light detection units arranged in the height direction, and each group of light detection units comprises a first light emitter (411) and a first light receiver (412).

4. The separation module of claim 3, wherein: The separation box (1) is provided with a cover plate (5) which is opened and closed and slides relative to the negative pressure port (11), and the cover plate (5) is drivingly connected with the driving mechanism (3).

5. The separation module according to any one of claims 1 to 4, characterized in that: The outer periphery of the negative pressure port (11) is provided with a guide groove, and the cover plate (5) is movably and limitingly arranged in the guide groove.

6. The separation module of claim 5, wherein: The cover plate (5) is drivingly connected with the driving mechanism (3) through a transmission assembly (6).

7. The separation module of claim 5, wherein: The driving mechanism (3) comprises a motor (31), a worm (32) connected at the driving end of the motor (31), a worm gear (33) meshingly connected with the worm (32), and the worm gear (33) is connected with the filter screen (2).

8. The separation module of claim 5, wherein: The transmission assembly (6) comprises a lead screw (61) connected at the end of the worm (32), a moving seat (62) screwed on the lead screw (61), and a toggle piece (63) connected with the moving seat (62), and the toggle piece (63) is connected with the end of the cover plate (5).

9. The separation module of claim 8, wherein: The separation box (1) is provided with a guide seat (64), and the toggle piece (63) is movably and limitingly arranged on the guide seat (64).

10. The separation module of claim 9, wherein: The negative pressure port (11) is provided with a garbage sensor (7) for detecting the type of garbage.

11. The separation module according to any one of claims 1 to 4, characterized in that: The garbage sensor (7) is a camera; or the garbage sensor (7) comprises a second light detector (71) oppositely arranged in the negative pressure port (11) and a second reflector (72) for realizing light reflection, and the second light detector (71) comprises a second light emitter and a second light receiver.

12. The separation module of claim 11, wherein: The separation module comprises a separation box (1), a negative pressure port (11) arranged in the separation box (1), a filter screen (2) arranged in the negative pressure port (11), a driving mechanism (3) arranged in the separation box (1) and drivingly connected with the filter screen (2), and a cover plate (5) which is opened and closed and slides relative to the negative pressure port (11) and is drivingly connected with the driving mechanism (3).

13. A cleaning machine comprising a housing (200), a fan (100) disposed within the housing (200), characterized in that: The cleaning machine adopts the separation module as claimed in claim 13.

14. A method of operating a cleaning machine, characterized by: The working method of the cleaning machine is that when the cleaning machine is working, the driving mechanism (3) is controlled to drive the filter screen (2) to alternately perform up and down swing action by forward rotation and reverse rotation at a first interval time. The angle of the driving mechanism (3) driving the filter screen (2) to rotate forward and reverse is less than or equal to 90°.

15. The method of operating a cleaning machine according to claim 14, wherein: When the cleaning machine is working, the water level in the separation box (1) is detected in real time, and when the water level in the separation box (1) reaches a set water level, the driving mechanism (3) is controlled to drive the filter screen (2) to alternately perform up and down swing action by forward rotation and reverse rotation.

16. The method of claim 14, wherein: The working method of the cleaning machine is that when the cleaning machine is working, the driving mechanism (3) is controlled to drive the filter screen (2) to alternately perform up and down swing action by forward rotation and reverse rotation at a first interval time.

17. The method of operating a cleaning machine according to claim 16, wherein: When the water level in the separation box (1) reaches or exceeds the set water level, the control driving mechanism (3) drives the filter screen (2) to alternately perform up and down swing action by forward rotation and reverse rotation at the set second interval time.

18. The method of claim 14, wherein: The negative pressure port (11) is provided with a garbage sensor (7) for detecting the type of garbage; When the cleaning machine is working, the garbage sensor (7) detects the type of currently collected garbage; When it is judged that the type of currently collected garbage is heavy substance type garbage, the control driving mechanism (3) drives the filter screen (2) to alternately perform up and down swing action by forward rotation and reverse rotation; When it is judged that the type of currently collected garbage is sticky substance type garbage, the control driving mechanism (3) drives the filter screen (2) to alternately perform up and down swing action by forward rotation and reverse rotation; Otherwise, the control driving mechanism (3) drives the filter screen (2) to alternately perform up and down swing action by forward rotation and reverse rotation.

19. A computer-readable storage medium, characterized in that: The computer readable storage medium stores computer instructions for causing the computer to execute the working method of the cleaning machine according to any one of claims 14-18.

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