CN216665166U - Swimming pool cleaning machine with underwater pollution discharge function - Google Patents

Abstract

The utility model provides a swimming pool cleaner with underwater pollution discharge function, which comprises a cleaner main body and also comprises: the signal detection device is arranged on the cleaner main body and used for detecting the position of the underwater docking station; and the sewage draining outlet assembly is connected with the cleaner main body and is used for docking with the underwater docking station so that the sewage in the cleaner main body enters the underwater docking station through the sewage draining outlet assembly to be drained. The utility model has the advantages that the swimming pool cleaner can automatically discharge the filter box under water, the filter box does not need to be emptied manually, the discharged dirt is directly discharged to the outside of the swimming pool under the action of the underwater docking station, the automation degree is high, and the working efficiency is high.

Description

Swimming pool cleaning machine with underwater pollution discharge function

Technical Field

The utility model belongs to the technical field of cleaning machines, and particularly relates to a swimming pool cleaning machine with an underwater sewage discharge function.

Background

The swimming pool is a field for people to do swimming sports, and people can build up body or play games in the swimming pool. Most swimming pools are built on the ground, and can be divided into general swimming pools and warm water swimming pools according to water temperature, while private swimming pools are in many countries, and public swimming pools are in many countries. In any swimming pool, a lot of garbage is generated in use, so the swimming pool needs to be cleaned regularly. The swimming pool cleaning machine is usually adopted to clean the swimming pool in the existing swimming pool, after the swimming pool cleaning machine is cleaned, sundries such as garbage and the like can be filled in the filter box, the swimming pool cleaning machine is required to be lifted out of the swimming pool, the filter box is taken out and then the sundries are poured out, the sundries cleaning process is long in time consumption, the operation is complex, and the automation degree is low.

Disclosure of Invention

In view of the above problems, the present invention provides a swimming pool cleaning machine with underwater sewage draining function, so as to solve the above or other problems existing in the prior art.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a take swimming pool cleaning machine of blowdown function under water, includes the cleaning machine main part, still includes:

the signal detection device is arranged on the cleaner main body and used for detecting the position of the underwater docking station;

and the sewage draining outlet assembly is connected with the cleaner main body and is used for docking with the underwater docking station so that the sewage in the cleaner main body enters the underwater docking station through the sewage draining outlet assembly to be drained.

Further, be equipped with filter equipment in the cleaning machine main part, drain assembly and filter equipment intercommunication, and the drain assembly is set up to communicate with filter equipment's inside and the outside of cleaning machine main part respectively to make the filth in the filter equipment via the drain assembly discharge.

Further, filter equipment includes the filter cartridge, and the drain assembly is located inside the filter cartridge, and the drain assembly is set up to communicate with the filter cartridge is inside.

Further, the drain assembly comprises a drain and a drain cover plate, the drain cover plate is connected with the drain, and the drain cover plate can be opened or closed relative to the drain.

Further, the size of the contact position of the drain and the drain cover plate is not larger than the size of the drain cover plate, so that the drain cover plate is opened along the flowing direction when sewage is discharged, and the drain cover plate is blocked when the drain cover plate is closed along the reverse direction of the flowing direction when sewage is discharged.

Furthermore, the filtering device further comprises a sealing cover, the filtering box is arranged inside the sealing cover, and the sealing cover is detachably connected with the cleaning machine body.

Further, the sealing cover is provided with an opening which is communicated with the water channel of the cleaning machine main body, so that the sealing cover is communicated with the water outlet of the cleaning machine main body through the water channel, and the water of the swimming pool filtered by the filter box flows out of the opening and flows along the water channel.

Furthermore, a cleaning device is arranged in the sealing cover to clean the filter box.

Furthermore, the cleaning device is an ultrasonic energy conversion sheet.

Further, the cleaner body is provided with a wireless rechargeable battery for exchanging electric energy with the underwater docking station, so that the wireless rechargeable battery is charged when the underwater docking station is docked with the swimming pool cleaner for sewage discharge;

the wireless rechargeable battery is sealed and arranged in the cleaner body, and the wireless rechargeable battery is electrically connected with the control module of the swimming pool cleaner.

Further, the signal detection device comprises an infrared sensor and an ultrasonic sensor; or the like, or, alternatively,

the signal detection device comprises an infrared sensor, a collision switch is arranged on the cleaner body and is designed to be matched with the underwater docking station when the swimming pool cleaner moves to the lower docking station so that the swimming pool cleaner stops at the docking position with the underwater docking station; or the like, or, alternatively,

the signal detection device includes a vision sensor.

By adopting the technical scheme, the swimming pool cleaner is provided with the sewage discharge outlet assembly which is communicated with the interior of the filter box, swimming pool water enters the filter box under the action of the reverse rotation of the impeller or an external pump, dirt in the filter box is washed, the dirt is discharged through the sewage discharge outlet, when the swimming pool cleaner is in butt joint with the underwater docking station, the discharged dirt enters the underwater docking station, the self-cleaning of the swimming pool cleaner is realized, the swimming pool cleaner can realize the cleaning and sewage discharge of the filter box underwater, the filter box does not need to be emptied manually, and the automation degree is high; the ultrasonic energy conversion sheet is arranged in the sealing cover, so that the filter box can be subjected to ultrasonic cleaning, the filter box is further subjected to deep cleaning, and the filter box is cleaned; the outside of filter cartridge is provided with the sealed cowling for the swimming pool water that gets into the water course all gets into in the filter cartridge, makes the water after wasing the filter cartridge directly get into in the station of docking under water through the drain assembly simultaneously, can not get into the inside other positions of swimming pool cleaning machine.

Drawings

FIG. 1 is a schematic view of an automatic waste system for a pool cleaner according to one embodiment of the present invention;

FIG. 2 is a schematic view of another angle of the pool cleaner exhaust system in accordance with one embodiment of the present invention;

FIG. 3 is a schematic view of the overall structure of the pool cleaning machine according to one embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a pool cleaning machine in accordance with one embodiment of the present invention;

FIG. 5 is a schematic view of another angular configuration of the filter cartridge portion of the pool cleaner in accordance with one embodiment of the present invention;

FIG. 6 is an enlarged view of the portion A of FIG. 5;

FIG. 7 is a schematic structural view of an underwater docking station of an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of an underwater docking station of an embodiment of the present invention;

FIG. 9 is a schematic structural view of a soil suction port assembly according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of a pool cleaner exhaust system according to an embodiment of the present invention.

In the figure:

1. swimming pool cleaning machine 2, underwater docking station 3 and water circulation system

10. Cleaning machine body 11, signal detection device 100, and seal cover

101. A filter box 102, a water channel 103 and a water outlet

104. Impeller 105, motor 106, seal box

107. Wireless rechargeable battery 108, drain assembly 109 and water inlet assembly

108-1, a sewage outlet 108-2, a reset piece 108-3 and a sewage outlet cover plate

109-1, water inlet cover plate 109-2, water inlet 20 and signal transmitting device

21. Docking station main body 22, wireless charging module 23 and guide mechanism

210. Soil pick-up interface 211, soil pick-up pipe 212, power drive device

213. Sewage discharging pipe 214, sewage pumping device 215 and ejector rod

216. Connecting rod 217, seal 218, channel

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments.

Fig. 1 shows a schematic structural diagram of an embodiment of the present invention, which relates to a swimming pool cleaner with an underwater sewage discharge function, wherein when the swimming pool cleaner is used for cleaning a swimming pool, dirt in the swimming pool is cleaned and sucked into a filter box, and when the filter box is required to be cleaned or the swimming pool cleaner is required to be cleaned, the dirt is discharged by docking the underwater docking station with the swimming pool cleaner, so that the swimming pool cleaner can automatically discharge and clean the dirt, the degree of automation is high, the working efficiency is high, the swimming pool cleaner can discharge the sewage of the filter box underwater without manually emptying the filter box.

A swimming pool cleaner with underwater pollution discharge function, as shown in figures 1-3, is used for cleaning swimming pools, and comprises a cleaner body 10, and further comprises:

the signal detection device 11 is arranged on the cleaner main body 10 and used for detecting signals sent by the underwater docking station 2 so as to determine the position of the underwater docking station 2; the signal detection device 11 detects the signal emitted by the underwater docking station 2, the position of the underwater docking station 2 is determined through the detected signal, and the swimming pool cleaning machine 1 moves according to the signal position and moves to the position of the underwater docking station 2 to be docked with the underwater docking station 2 for discharging dirt; or the signal detection device is used for directly detecting the position of the underwater docking station 2, and the swimming pool cleaning machine 1 is directly moved to the underwater docking station 2 according to the detected position and is docked with the underwater docking station 2 to discharge dirt;

the sewage outlet assembly 108 is connected with the cleaner main body 10 and used for docking with the underwater docking station 2, so that sundries in the cleaner main body 10 enter the underwater docking station 2 through the sewage outlet assembly 108 to be discharged, the arrangement of the sewage outlet assembly 108 is convenient for discharging sewage, when the swimming pool cleaner 1 is used for cleaning a swimming pool, the sewage is sucked by the water inlet 109-2 on the cleaner main body 10, when the sewage is discharged, the sewage is discharged by the sewage outlet assembly 108, and the separation of the water inlet 109-2 and the sewage outlet 108-1 is realized, and the independent work is realized.

The signal detection device 11 comprises an infrared sensor for detecting the position of the underwater docking station 2 and an ultrasonic sensor for positioning the swimming pool cleaning machine 1, and when the swimming pool cleaning machine 1 is positioned on the underwater docking station 2, the swimming pool cleaning machine 1 is positioned, so that the sewage outlet assembly 108 is accurately docked with the underwater docking station 2; or, the signal detection device 11 includes an infrared sensor, the infrared sensor is used to detect the position of the underwater docking station 2, a collision switch is arranged on the cleaner body 10, the collision switch is used to position the swimming pool cleaner 1, when the swimming pool cleaner 1 moves to the underwater docking station 2, the swimming pool cleaner 1 is positioned, so that the sewage outlet assembly 108 is accurately docked with the underwater docking station 2, when the swimming pool cleaner 1 is positioned by the collision sensor, the underwater docking station 2 has a protrusion matched with the collision switch to trigger the collision switch to act, so that the swimming pool cleaner 1 is parked at the position, the collision switch is arranged on one side surface of the cleaner body 10 facing the underwater docking station 2, so that the collision switch is triggered by the underwater docking station 2; or, the signal detection device 11 includes a visual sensor, which can acquire an image of the swimming pool, can acquire the position of the underwater docking station 2, and can position the swimming pool cleaning machine 1 by ranging, so that the sewage outlet assembly 108 of the swimming pool cleaning machine 1 is accurately docked with the underwater docking station 2; or, the detection signal device 11 comprises a visual sensor and an ultrasonic sensor, the visual sensor is used for determining the position of the underwater docking station, and the ultrasonic sensor is used for positioning the swimming pool cleaning machine 1; or, the signal detection device 11 is other distance measurement and positioning sensors, and is selected according to actual requirements, and no specific requirements are made here; the infrared sensor, the ultrasonic sensor, the visual sensor, the collision switch and the like are all commercially available products, and are selected according to actual requirements, and no specific requirements are made here.

As shown in fig. 3, the signal detection device 11 is fixedly installed on the cleaner main body 10, the signal detection device 11 may be fixedly installed inside the cleaner main body 10, and a through hole is provided at a corresponding position on the housing of the cleaner main body 10, so that the signal detection device 11 can detect the signal emitted from the underwater docking station 2 through the through hole, or the signal detection device 11 is fixedly installed on the outer surface of the housing of the cleaner main body 10 and is subjected to a waterproof treatment, preferably, in this embodiment, the signal detection device 11 is installed on the outer surface of the housing of the cleaner main body 10 and is located on the outer surface of the housing of the cleaner main body 10 in the advancing direction, so that the signal detection device 11 can accurately detect the position of the underwater docking station 2 and the emitted signal.

The number of the signal detection devices 11 is at least one, when the number of the signal detection devices 11 is plural, the signal detection devices may be disposed on each peripheral side surface of the cleaning machine main body 10, may also be disposed on the top of the cleaning machine main body 10, and are disposed in an annular shape, or in other arrangement manners, and the number and the arrangement manner of the signal detection devices 11 are selected and disposed according to actual requirements, and are not specifically required here.

As shown in fig. 4 to 6, a filtering device is provided in the cleaner main body 10, the drain assembly 108 is provided in the filtering device, the drain assembly 108 is connected to the cleaner main body 10, and the drain assembly 108 is provided to communicate with the inside of the filtering device and the outside of the cleaner main body 10, respectively, so that the dirt in the filtering device is discharged through the drain assembly 108. This filter equipment is equipped with water inlet assembly 109, and swimming pool cleaning machine 1 is carrying out cleaning to the swimming pool, and in the filth got into filter equipment by water inlet assembly 109, when swimming pool cleaning machine 1 accomplished cleaning or need carry out the filth to filter equipment and discharge, the filth was discharged from drain assembly 108.

Specifically, the filter device includes a filter box 101, the filter box 101 is detachably connected to the cleaner body 10, so that the filter box 101 can be conveniently detached and installed, and the filter box 101 is used for filtering the pool water entering the cleaner body 10. The casing part corresponding to the filter box 101 of the cleaner body 10 is provided with a water inlet assembly 109 and a sewage outlet assembly 108, the water inlet assembly 109 is communicated with the filter box 101, so that when the swimming pool cleaner 1 is used for cleaning the swimming pool, the swimming pool water containing dirt enters the filter box 101 from the water inlet assembly 109, the structure of the water inlet assembly 109 is the same as that of the water inlet assembly in the prior art, and the detailed description of the structure is omitted.

The drain assembly 108 is connected to the housing of the main cleaner body 10, the drain assembly 108 is located in the filter cassette 101, and the drain assembly 108 is provided to communicate with the inside of the filter cassette 101, so that the dirt in the filter cassette 101 is discharged through the drain assembly 108. Specifically, as shown in fig. 5 and 6, the drain assembly 108 includes a drain 108-1 and a drain cover 108-3, the drain cover 108-3 is connected to the drain 108-1, and the drain cover 108-3 can be opened or closed with respect to the drain 108-1; the sewage draining exit 108-1 is connected with the shell of the cleaner main body 10 and extends towards the inner direction of the shell to form a channel to form a sewage draining exit 108-1 structure, a sewage draining exit cover plate 108-3 is arranged at the free end close to the sewage draining exit 108-1, the sewage draining exit cover plate 108-3 can be opened or closed relative to the sewage draining exit 108-1, and when the sewage draining exit cover plate 108-3 is opened, the filter box 101 discharges sewage; when the swimming pool cleaning machine performs swimming pool cleaning work, the sewage discharge port cover plate 108-3 is closed, the water inlet 109-2 is opened, sewage is sucked, and the swimming pool is cleaned.

As the filth is discharged from the filter box 101 through the filth discharge port 108-1 when the filter box 101 discharges the filth, when the filth discharge port cover plate 108-3 is opened for filth discharge, the filth discharge port cover plate 108-3 is opened towards the outside of the cleaner body 10 relative to the filth discharge port 108-1, that is, the filth discharge port cover plate 108-3 is opened along the filth discharge direction, so that the filth can be discharged from the filter box 101 without being blocked. Of course, the cover plate 108-3 of the sewage draining port can be opened along the opposite direction of the sewage draining direction, that is, the water of the swimming pool containing the sewage can enter the filter box 101 from the sewage draining port 108-1, the cover plate 108-3 of the sewage draining port can be opened in one direction or two directions, the opening mode is selected according to the actual requirement, and no specific requirement is made here.

As an implementation solution of this embodiment, in this embodiment, the filtering apparatus further includes a sealing cover 100, the filter box 101 is disposed inside the sealing cover 100, the sealing cover 100 is detachably connected to the cleaner body 10 to facilitate the detachment and installation of the sealing cover 100, the sealing cover 100 is sleeved outside the filter box 101, and the size of the sealing cover 100 is larger than that of the filter box 101, so that a gap is formed between the sealing cover 100 and the filter box 101, so that the pool water filtered by the filter box 101 flows along the gap, and the dirt is retained in the filter box 101; the sealing cover 100 and the filter box 101 can be connected with the casing of the cleaning machine main body 10 in a clamping manner, or connected with the casing of the cleaning machine main body 10 through connecting pieces such as bolts or other detachable connecting manners, and are selected according to actual requirements without specific requirements.

The sealing cover 100 is provided with an opening communicating with the water passage 102 of the cleaner body 10 such that the sealing cover 100 communicates with the water outlet 103 of the cleaner body 10 through the water passage 102, such that the swimming pool water filtered by the filter cartridge 101 flows out of the opening and along the water passage 102 and out of the water outlet 103 of the cleaner body 10. The sealing cover 100 is arranged to seal the filter box 101 in a space, and the space has an opening, so that the pool water filtered by the filter box 101 flows in the space and flows out from the opening, and the pool water filtered by the filter box 101 is guided, so that the filtered pool water flows along one direction and does not flow in all directions.

As an implementation solution of this embodiment, in order to separate the water inlet assembly 109 and the sewage outlet assembly 108 to work separately, the opening direction of the sewage outlet cover plate 108-3 is preferably opened along the sewage discharging direction. When the cleaner cleans the swimming pool, the swimming pool water containing dirt enters the filter box 101 through the water inlet assembly 109, at the moment, the internal pressure of the cleaner body 10 is low, the external pressure is high, at the moment, the sewage outlet cover plate 108-3 is pressed at the sewage outlet 108-1 under the action of the internal and external pressure difference, the sewage outlet 108-1 is sealed, so that the swimming pool water containing sewage can only enter from the water inlet 109-2, in order to enable the sewage draining port cover plate 108-3 to be buckled at the sewage draining port 108-1, the size of the contact part of the sewage draining port 108-1 and the sewage draining port cover plate 108-3 is not larger than that of the sewage draining port cover plate 108-3, so that the drain cover 108-3 is opened in a flow direction when the filth is discharged and is blocked when it is closed, so that the drain cover 108-3 is not opened toward the inside of the cleaner body 10.

In a further optimized scheme, along the flowing direction of sewage when the sewage is discharged, the size of an inlet end of the sewage draining outlet 108-1 is smaller than that of an outlet end, the sewage draining outlet cover plate 108-3 is rotatably arranged at the inlet end (the port where the sewage enters) of the sewage draining outlet 108-1, the sewage draining outlet cover plate 108-3 is positioned inside the sewage draining outlet 108-1, the sewage draining outlet 108-1 is of a pipeline structure, the size of a free end of the sewage draining outlet 108-1 is smaller than that of the other end of the sewage draining outlet 108-1, a step is arranged inside the free end of the sewage draining outlet 108-1, the sewage draining outlet cover plate 108-3 is rotatably arranged inside the sewage draining outlet 108-1 and positioned at the free end of the sewage draining outlet 108-1, the size of the sewage draining outlet cover plate 108-3 is matched with the inner size of the sewage draining outlet 108-1, and the sewage draining outlet cover plate 108-3 can rotate inside the sewage draining outlet 108-1, is opened or closed, and is blocked by the step at the free end of the sewage draining exit 108-1 and buckled at the free end of the sewage draining exit 108-1 when closed.

The joint of the drain cover plate 108-3 and the drain 108-1 is provided with a reset piece 108-2, the drain cover plate 108-3 is a plate structure, the drain cover plate 108-3 is rotatably connected with the inner wall of the drain 108-1 through a rotating shaft, the rotating shaft is provided with the reset piece 108-2, the reset piece 108-2 can generate elastic deformation, the elastic deformation of the reset piece 108-2 is utilized to enable the drain cover plate 108-3 to automatically recover to the original position under the condition of no stress, and the drain cover plate 108-3 is buckled at the drain 108-1.

Preferably, in this embodiment, the restoring member 108-2 may be a torsion spring, which is selected for a commercially available product according to actual requirements. Or, the sewage draining exit cover plate 108-3 can also be fixedly arranged on the inner wall of the sewage draining exit 108-1, the sewage draining exit cover plate 108-3 is connected with the inner wall through a resetting piece, the resetting piece is made of rubber and can generate elastic deformation, and the opening or closing of the sewage draining exit 108-1 is realized by utilizing the elastic deformation;

or, the sewage draining exit cover plate 108-3 is rotatably connected with the inner wall of the sewage draining exit 108-1 through a rotating shaft, the rotating shaft is connected with a reset part, the reset part is a motor, the rotating shaft is connected with the motor and rotates under the action of the motor to open and close the sewage draining exit cover plate 108-3, meanwhile, a pressure sensor is arranged at the position of the sewage draining exit 108-1, the pressure sensor and the motor are both connected with a control device of the swimming pool cleaning machine, the control device controls the motor to move according to a signal detected by the pressure sensor so as to control the opening and closing of the sewage draining exit cover plate 108-3, when the pressure sensor detects pressure, the motor does not move, the sewage draining exit cover plate 108-3 is closed, when the pressure sensor does not detect pressure, the motor moves, and the sewage draining exit cover plate 108-3 is opened to drain.

A sealing box 106 is arranged in the cleaner body 10, a motor 105 is arranged in the sealing box 106, a main shaft of the motor 105 extends out of the sealing box 106 to be connected with an impeller 104, and the impeller 104 rotates under the action of the motor 105 to realize the suction of water in the swimming pool. Meanwhile, a water channel 102 is formed in the cleaner body 10, the water channel 102 has a tubular structure, and guides the filtered pool water, and the filtered pool water flows out along the water channel 102 through a water outlet 103 of the cleaner body 10. An impeller 104 is arranged in the water channel 102, the impeller 104 performs suction in different directions on the pool water through forward rotation and reverse rotation, the impeller 104 is positioned in the water channel 102, when the impeller 104 is set to rotate forward, the pool water containing dirt enters the filter box 101 from the water inlet assembly 109, after being filtered by the filter box 101, the filtered pool water flows into the water channel 102 through the opening of the sealing cover 100 and flows out of the pool cleaner 1 along the water channel 102, so that the pool water is filtered; when the impeller 104 rotates reversely, the swimming pool water flows in from the water outlet 103 of the cleaner body 10, flows into the sealing cover 100 along the water channel 102, enters the filter box 101, so that the dirt in the filter box 101 flows out from the sewage outlet 108-1 along with the water flow to be discharged, and the sealing cover 100 is arranged to facilitate the swimming pool water entering the sealing cover 100 to clean the filter box 101 when the impeller 104 rotates reversely. The water channel 102 includes a first interface, a second interface and a third interface, the first interface is connected with the water outlet 103 of the cleaner body 10, the second interface is connected with the opening of the sealing cover 100, so that the sealing cover 100 is communicated with the water outlet 103 through the water channel 102, the third interface corresponds to the position of the motor spindle of the sealing box 106, and the third interface is in close contact with the sealing box 106, so that the motor spindle extends into the water channel 102, so that the impeller 104 is located in the water channel 102.

Further optimize the scheme, be equipped with belt cleaning device in the sealed cowling 100, wash sealed cowling 100 and filter box 101 for the filth of adhesion on filter box 101 can be washd, and this belt cleaning device is the ultrasonic transducer piece, and this ultrasonic transducer piece utilizes the ultrasonic wave to carry out ultrasonic cleaning to filter box 101, can peel off the filth of adhesion on the filter box 101, and with filter box 101 sanitization, further carry out deep cleaning to filter box 101.

As an implementable scheme of this embodiment, the cleaning machine main body 10 is provided with the wireless rechargeable battery 107 for exchanging electric energy with the underwater docking station 2, so that the underwater docking station 2 can charge the swimming pool cleaning machine 1, the wireless rechargeable battery 107 is arranged, the swimming pool cleaning machine 1 does not need an external cable, the whole structure of the swimming pool cleaning machine 1 is simple, and the cleaning action is convenient. The wireless rechargeable battery 107 is hermetically disposed in the cleaner body 10, such as: the wireless rechargeable battery 107 can be installed in the sealed box 106, or the wireless rechargeable battery 107 is externally provided with a sealed shell, and the wireless rechargeable battery 107 is installed inside the swimming pool cleaning machine through the sealed shell, or other sealed installation modes are selected according to actual requirements, so that the wireless rechargeable battery 107 does not contact with the swimming pool water, and the wireless rechargeable battery 107 is protected. The wireless rechargeable battery 107 is electrically connected to the control module in the pool cleaner to provide power to the control module.

When the pool cleaner 1 works normally, the water pump motor 105 drives the impeller 104 to rotate forward, the water in the pool enters from the water inlet 109-2 at the bottom of the pool cleaner 1, the water inlet cover plate 109-1 on the water inlet 109-2 is pushed open, the water enters the filter box 101, the dirt is blocked by the filter screen on the filter box 101, and the clean water passes through the filter screen, flows through the opening of the sealing cover 100, enters the water channel 102, flows along the water channel 102, and is discharged from the water outlet 103 of the cleaner body 10. At this time, because the pressure inside the swimming pool cleaning machine is small, the cover plate 108-3 of the sewage discharge outlet 108-1 is pressed on the sewage discharge outlet 108-1 by water pressure, so as to realize the sealing. When the water pump motor 105 stops, the water inlet cover plate 109-1 is tightly attached to the water inlet 109-2 and the sewage outlet cover plate 108-3 is tightly attached to the sewage outlet 108-1 under the action of restoring forces of the torsion spring of the water inlet 109-2 and the torsion spring of the sewage outlet 108-1.

When the swimming pool cleaner 1 finishes the cleaning work or the filter box 101 needs to be cleaned or the swimming pool cleaner 1 needs to be charged, the swimming pool cleaner 1 searches for the underwater docking station 2, discharges the dirt, cleans the filter box 101, and can also charge the swimming pool cleaner 1.

An underwater docking station for docking with a pool cleaner 1, receiving dirt from the pool cleaner 1 and delivering the dirt to a water circulation system 3 external to the pool, as shown in fig. 7-9, comprising:

docking station main part 21, docking station main part 21 is equipped with the soil pick-up mouth assembly, with the swimming pool cleaning machine 1 butt joint so that filth discharges, docking station main part 21 receives the filth that swimming pool cleaning machine 1 discharged to carry the filth to the outside water circulating system 3 of swimming pool in.

The underwater docking station further comprises a signal emitting device 20, the signal emitting device 20 being disposed on the docking station body 21 and configured to emit a signal to the pool cleaner 1, the pool cleaner 1 receiving the signal to determine the position of the underwater docking station 2.

The signal emitting device 20 is an infrared sensor that emits a signal to the pool cleaner 1 so that the pool cleaner 1 can receive the signal to determine the orientation of the underwater docking station 2 relative to the pool cleaner 1.

The setting of the signal emitting device 20 is selected according to the type of the signal detecting device 11 of the pool cleaner 1: when the signal detection device 11 is a visual sensor, the underwater docking station 2 is not provided with the signal emitting device 20, and the visual sensor can detect and position the position of the underwater docking station 2; when the signal detection means 11 comprises an infrared sensor, the signal emitting means 20 is provided, and the infrared sensor of the signal detection means 11 detects the emitted signal of the signal emitting means 20 to determine the orientation, position of the underwater docking station 2.

The docking station body 21 is provided with an impact switch, at this time, the swimming pool cleaner 1 is not provided with the impact switch, through the signal sent by the infrared sensor, the swimming pool cleaner 1 determines the position of the underwater docking station 2, when the swimming pool cleaner 1 is positioned on the underwater docking station 2, the swimming pool cleaner 1 is provided with a bulge to trigger the impact switch on the underwater docking station 2, and the swimming pool cleaner 1 is positioned, so that the sewage outlet assembly 108 of the swimming pool cleaner 1 is accurately docked with the underwater docking station 2; the impact switch is disposed on the side of the docking station body 21 facing the pool cleaner 1 so that the impact switch can be triggered by the pool cleaner 1.

The infrared sensor and the collision switch are all commercially available products, and are selected according to actual requirements, and no specific requirements are made here.

The docking station body 21 is attached to the side walls of the pool and contacts the bottom wall of the pool to facilitate docking of the pool cleaner 1 to the docking station body 21. This docking station main part 21 still includes waste fitting discharging, sewage suction port assembly and waste fitting discharging intercommunication, when swimming pool cleaning machine 1 docks with docking station main part 21, sewage suction port assembly and the intercommunication of 108 butt joints of sewage discharge port assembly carry out the filth and discharge, the filth is discharged by swimming pool cleaning machine 1's sewage discharge port assembly 108, get into docking station main part 21's sewage suction port assembly to get into waste fitting discharging through sewage suction port assembly, transport to the outside water circulating system of swimming pool in through waste fitting discharging.

This docking station main part 21 still includes the docking station casing, and inside waste fitting discharging located the casing, and be equipped with the opening on the casing, the soil pick-up mouth assembly sets up at this opening part to inside extending to the docking station casing, the setting of docking station casing for 2 compact structures of docking station under water, protect waste fitting discharging and soil pick-up mouth assembly simultaneously, the outward appearance is pleasing to the eye.

As shown in fig. 8 and 9, the above-mentioned sewage suction port assembly includes a sewage suction docking port 210, a sewage suction pipe 211, an elevating mechanism and a power driving device 212, the sewage suction docking port 210 is connected to the sewage suction pipe 211, the elevating mechanism is respectively connected to the sewage suction docking port 210 and the power driving device 212, the power driving device 212 operates to drive the elevating mechanism to operate, so that the sewage suction docking port 210 is elevated, so that the sewage suction docking port 210 is in contact with and docked with the sewage discharge port assembly 108, and the sewage is discharged along the sewage suction pipe 211 and enters the sewage discharge device. After the swimming pool cleaner 1 moves to the correct position of the underwater docking station 2, the power driving device 212 acts, the lifting mechanism drives the sewage suction docking port 210 to ascend, so that the sewage suction docking port 210 is in contact docking with the sewage outlet 108-1 of the swimming pool cleaner 1, the sewage suction docking port 210 is communicated with the sewage outlet 108-1, and the sewage in the swimming pool cleaner 1 accurately enters the sewage suction docking port 210 to discharge the sewage.

The soil pick-up docking port 210 is a tubular structure, is slidably mounted at the opening of the docking station housing, and moves up and down along the axial direction of the opening; the inlet end of the sewage suction docking port 210 is provided with an extension extending outwards, so that when the sewage suction docking port 210 moves downwards, the sewage suction docking port 210 cannot completely enter the inside of the docking station housing, and due to the blocking of the extension, the inlet end of the sewage suction docking port 210 is flush with the surface of the docking station housing, and the extension is arranged to limit the stroke of the sewage suction docking port 210. The outlet end of the sewage suction docking port 210 is connected with one end of a sewage suction pipe 211, the other end of the sewage suction pipe 211 is connected with a sewage discharging device, and the sewage suction docking port 210 needs to move up and down, so the sewage suction pipe 211 is preferably a flexible hose, when the sewage suction docking port 210 rises, the sewage suction pipe 211 is unfolded, and when the sewage suction docking port 210 falls, the sewage suction pipe 211 retracts to realize the matching of the sewage suction pipe 211 and the sewage suction docking port 210.

The suction pipe 211 is located inside the docking station housing, which protects the suction pipe 211.

In order to avoid the sloshing of the sewage suction pipe 211 in the process of moving the sewage suction interface 210 up and down, a section of channel 218 is arranged in the position corresponding to the sewage suction interface 210 in the housing of the docking station main body 21, one end of the sewage suction pipe 211 is connected with the end part of the channel 218, the other end of the sewage suction pipe 211 is connected with the sewage suction interface 210, when the sewage suction interface 210 descends, the sewage suction pipe 211 is compressed between the channel 218 and the sewage suction interface 210, and the other end of the channel 218 is communicated with a sewage discharging device to convey sewage.

The lifting mechanism comprises a push rod 215 and a connecting rod 216, one end of the push rod 215 is connected with the sewage suction interface 210, the other end of the push rod 215 is connected with the connecting rod 216, the connecting rod 216 is connected with a power driving device 212, the connecting rod 216 is driven to swing through the rotation of the power driving device 212, and then the push rod 215 is driven to move linearly, so that the sewage suction interface 210 moves up and down. When the push rod 215 is connected with the sewage suction interface 210, the push rod 215 is connected with the extension of the sewage suction interface 210, and because the extension is positioned outside the docking station shell, a through hole is arranged on the docking station shell corresponding to the push rod 215, one end of the push rod 215 passes through the through hole to be connected with the extension of the sewage suction interface 210, and the push rod 215 performs linear motion under the guiding action of the through hole; in order to provide sealing properties to the housing of the docking station body 21 and to prevent pool water from entering the interior of the housing of the docking station body 21 and causing damage to the power drive means 212, a seal 217 is provided at the through hole to seal against it, preferably the seal 217 is a sealing ring. The other end of the top rod 215 is connected with one end of the connecting rod 216 through a rotating shaft, so that the connecting rod 216 and the top rod 215 can rotate relatively; the power driving device 212 is a speed reducing motor provided with an eccentric wheel, and the other end of the connecting rod 216 is connected with the eccentric wheel, so that the ejector rod 215, the connecting rod 216 and the eccentric wheel form a four-bar structure, the rotating motion of the eccentric wheel is converted into the linear motion of the ejector rod 215, and the up-and-down movement of the sewage suction interface 210 is realized. The speed reducing motor is a commercially available product, is selected according to actual requirements, and is not specifically required.

In order to further protect the speed reducing motor, a sealing box can be arranged outside the speed reducing motor to seal the speed reducing motor, so that the damage of the speed reducing motor caused by the contact of the water in the swimming pool and the speed reducing motor is avoided.

The above-mentioned waste fitting discharging device includes the sewage pipes 213, one end of the sewage pipes 213 is connected with the sewage suction port assembly, so that the sewage is discharged along the sewage pipes 213, one end of the sewage pipes 213 is connected and communicated with the sewage suction pipe 211 or the passage 218, and the other end of the sewage pipes 213 extends to the outside of the swimming pool, and the sewage is transported to the outside of the swimming pool, as follows: the other end of the sewage pipe 213 can be connected and communicated with the external water circulation system 3, and the sewage is conveyed to the water circulation system 3 under the reverse rotation of the impeller of the pool cleaner; or, the other end of the sewage pipe 213 is connected with a water pump system of the swimming pool, and the sewage is pumped out of the swimming pool by the water pump system; or other pollution discharge modes are selected according to actual requirements, and no specific requirements are made here. The drain pipe 213 is mounted inside the housing of the docking station main body 21, and the output end of the drain pipe 213 extends to the outside of the housing of the docking station main body 21 so as to be connected to the water circulation system 3.

Further optimize the scheme, this waste fitting discharging still includes and takes out dirty device 214, takes out dirty device 214 and locates on sewage pipes 213, perhaps takes out dirty device 214 and locates the tip of sewage pipes 213, takes out dirty device 214 and is the pump, and under the suction effect of pump, will get into the filth in the sewage suction pipe 211 and transport to the swimming pool outside for the filth can discharge fast.

In a further optimized scheme, the docking station main body 21 further comprises a guide mechanism 23, the guide mechanism 23 is arranged on two sides of the sewage suction port assembly and guides the cleaning machine, so that the sewage discharge port assembly 108 of the cleaning machine is in contact butt joint and communication with the sewage suction port assembly. This guiding mechanism 23 fixed mounting is on the side of being equipped with soil pick-up interface 210 of the casing of docking station main part 21, and guiding mechanism 23 locates the both sides of soil pick-up interface 210, lead to swimming pool cleaning machine 1, make swimming pool cleaning machine 1 can accurately move to docking station main part 21 on, and make the position of the drain assembly 108 of swimming pool cleaning machine 1 and the soil pick-up interface assembly of docking station main part 21 corresponding, so that the drain assembly 108 accurately contacts with drain assembly 108, the butt joint.

Docking station main part 21 still includes wireless charging module 22 for charge to wireless rechargeable battery 107, wireless charging module 22's position and pool cleaning machine 1 place docking station main part 21 on the back drain assembly 108 and the position of the wireless rechargeable battery 107 after the soil pick-up assembly docks correspond, so that wireless charging module 22 charges wireless rechargeable battery 107, this wireless charging module 22 seals the inside of locating the casing of docking station main part 21, avoid wireless charging module 22 and pool water contact.

The wireless charging module 22 is the same as the wireless charging module in the prior art, and can be directly selected according to actual requirements.

When the pool cleaner 1 needs to be charged, the underwater docking station 2 is searched along the wall, when the signal detection device 11 on the pool cleaner 1 detects the signal transmitted by the signal transmission device 20 on the underwater docking station 2, the underwater docking station 2 can walk in the direction of the signal, when the pool cleaner 1 contacts the underwater docking station 2, the guide mechanism 23 can guide the pool cleaner 1 to the correct track, when the pool cleaner 1 reaches the designated position, the signal detection device 11 can guide the pool cleaner 1 to stop (when the signal detection device 11 is an infrared sensor and an ultrasonic sensor, the signal transmission device 20 is an infrared sensor, the infrared sensor of the signal detection device 11 detects the signal transmitted by the infrared sensor of the signal transmission device 20, the direction of the underwater docking station 2 is determined, the underwater docking station 2 is walked in the direction of the underwater docking station 2 according to the signal, when the pool cleaning machine 1 contacts the underwater docking station 2, the guide mechanism 23 can guide the pool cleaning machine 1 to the correct track, when the pool cleaning machine 1 reaches the designated position, the ultrasonic sensor guides the pool cleaning machine 1 to stop according to the measured distance), at this time, the lifting mechanism on the underwater docking station 2 can push against the sewage suction docking port 210 to rise until the bottom of the pool cleaning machine 1 is attached, and the sewage suction docking port 210 is contacted with the sewage discharge assembly 108, thereby realizing the docking of the sewage suction docking port 210 and the sewage discharge 108-1. Then the wireless charging module 22 will start to charge the pool cleaner 1, and at the same time, the pump motor 105 will drive the impeller 104 to rotate reversely, the clean water enters the water channel 102 from the water outlet 103 of the pool cleaner 1 and flows along the water channel 102 to flow into the sealing cover 100 through the water channel 102. at this time, because the pressure inside the pool cleaner is high, the cover plate 108-3 of the sewage outlet 108-1 is pushed open by the water pressure, or the cover plate 108-3 of the sewage outlet is opened by the pump inside the sewage discharge device or the pump outside the pool, and the cover plate 109-1 of the water inlet is closed. Meanwhile, the ultrasonic energy conversion piece inside the sealing cover 100 starts to work, so that the dirt on the filter box 11 is peeled off, the clean water takes away the dirt on the filter screen through the filter box 101, enters the dirt suction pipe 211 through the dirt suction butt joint port 210, flows into the sewage discharge pipeline 213 in the underwater docking station 2, and the dirt suction device 214 is opened at the moment, so that the sewage is brought into the outside of the swimming pool, and the dirt discharge and cleaning of the filter box 101 of the swimming pool cleaning machine 1 are realized.

The discharged sewage can also be transported to the water circulation system 3 outside the pool through the sewage draining device, the sewage is treated in the water circulation system 3, and simultaneously, the water in the sewage is treated and enters the pool again for reuse.

A kind of swimming pool cleaner blow-off system, as shown in fig. 1, 2 and 10, including swimming pool cleaner 1 and underwater docking station 2, the swimming pool cleaner 1 detects the position of the underwater docking station 2, so that the swimming pool cleaner 1 moves to the underwater docking station 2, and park in the docking position, the swimming pool cleaner 1 docks with the underwater docking station 2, communicates, carries on the dirt discharge.

Here, the structure of the pool cleaner 1 is the same as that of the pool cleaner 1, and the description thereof is omitted. The underwater docking station 2 is identical in structure to the underwater docking station 2 described above and will not be described in detail.

Underwater docking station 2 is installed on the swimming pool, and be located under water, swimming pool cleaning machine 1 cleans the swimming pool, swimming pool cleaning machine 1 accomplishes work back, or, swimming pool cleaning machine 1 need charge the time, or, when swimming pool cleaning machine 1's filter box 101 needs to wash, swimming pool cleaning machine 1 acquires the signal that docking station 2 sent under water, confirm the position of docking station 2 under water, move to docking station 2 department under water, and move to on docking station 2 under water, swimming pool cleaning machine 1's drain assembly 108 docks with the soil pick-up mouth assembly, discharge the filth in the filter box 101, in soil pick-up mouth assembly gets into sewage pipes 213, transport to the outside water circulating system 3 of swimming pool, realize swimming pool cleaning machine 1's automatically cleaning, and simultaneously, wireless charging module 22 can charge to swimming pool cleaning machine 1's wireless rechargeable battery 107.

An automatic dirt discharging method for a swimming pool cleaner includes such steps as cleaning swimming pool, moving the swimming pool cleaner to a docking station, discharging dirt and charging when the swimming pool cleaner is cleaned and needs dirt discharge or needs to be charged,

the pool cleaner detects the orientation and position of the underwater docking station and moves towards the underwater docking station: the swimming pool cleaning machine is provided with a signal detection device, the underwater docking station is provided with a signal transmitting device, the signal detection device of the swimming pool cleaning machine receives a signal transmitted by the underwater docking station, determines the direction and the position of the underwater docking station, and moves to the underwater docking station according to the determined direction and the position;

or a signal detection device of the swimming pool cleaning machine scans the swimming pool, scans the terrain and the appearance of the swimming pool, acquires the direction and the position of the underwater docking station, and moves to the underwater docking station according to the determined direction and the position;

the swimming pool cleaner moves to the docking position under the guiding action of the guiding mechanism of the underwater docking station: the swimming pool cleaner moves to the underwater docking station after determining the position of the underwater docking station, and moves to the underwater docking station under the guiding action of the guiding mechanism after moving to the underwater docking station;

the pool cleaner moves to the underwater docking station and parks in the docked position: when the swimming pool cleaner moves to the docking position, the swimming pool cleaner is parked at the docking position so that the swimming pool cleaner is docked and communicated with the underwater docking station to discharge dirt; wherein, the swimming pool cleaning machine can determine the butt joint position through the distance measurement of the ultrasonic sensor; or the collision switch arranged on the swimming pool cleaning machine is matched with the bulge arranged on the underwater docking station to determine the docking position; or the docking position is determined by the cooperation of a collision switch arranged on the underwater docking station and a bulge on the swimming pool cleaning machine; alternatively, the docking position is determined by measuring a distance with a visual sensor provided on the pool cleaner, or by a combination of the above, so that the pool cleaner is parked in the docking position.

Docking the soil pick-up mouth assembly of docking station under water with the drain assembly of swimming pool cleaning machine, the swimming pool cleaning machine with dock the intercommunication under water, carry out the discharge of filth: the sewage suction butt joint port of the sewage suction port assembly rises under the action of the lifting mechanism to be in contact butt joint with the sewage discharge port assembly, and the sewage suction port assembly is communicated with the sewage discharge port assembly to discharge sewage; when carrying out the filth discharge, the impeller reversal of swimming pool cleaning machine, inhale the filth in the filter box of cleaning water to the swimming pool cleaning machine from the delivery port and wash, or, the impeller does not reverse, filth in the filter box is discharged under the pump action in the waste fitting discharging of docking station under water, or, the impeller does not reverse, filth in the filter box is discharged under the outside pump action of swimming pool, the filth flows from the drain along with washing the rivers, dock the station under water through soil pick-up mouth assembly entering, and discharge under waste fitting discharging's effect, carry to in the outside water circulating system of swimming pool.

Or, when dirt is discharged, the dirt in the swimming pool cleaner enters the underwater docking station and is discharged from the underwater docking station under the action of an external suction device, wherein the external suction device can be a water pump system carried by the swimming pool, and the dirt is pumped out of the swimming pool by using the water pump system; alternatively, the external suction device is a water pump disposed at the outlet of the underwater docking station to draw dirt from the underwater docking station for transport to the exterior of the pool.

Or, when the dirt is discharged, the dirt in the swimming pool cleaner enters the underwater docking station and is discharged under the action of a sewage discharge device of the underwater docking station, the sewage discharge device is arranged on a sewage discharge pipeline of the underwater docking station and is communicated with the sewage discharge pipeline, so that the dirt in the sewage discharge pipeline is conveyed to the outside of the swimming pool under the action of the sewage discharge device, and the sewage discharge device is preferably a water pump.

In the process of discharging sewage of the swimming pool cleaning machine, the wireless charging module of the underwater docking station charges the wireless battery of the swimming pool cleaning machine.

By adopting the technical scheme, the swimming pool cleaner is provided with the sewage outlet assembly which is communicated with the inside of the filter box, the swimming pool water is sucked from the water outlet of the swimming pool cleaner and discharged from the sewage outlet assembly through the reverse rotation of the impeller, the swimming pool water enters the filter box and washes dirt in the filter box, so that the dirt is discharged through the sewage outlet, and meanwhile, the swimming pool cleaner is in underwater docking with the docking station so that the dirt enters the underwater docking station; the underwater docking station is provided with a sewage suction port assembly and a sewage discharging device, the sewage suction port assembly is in butt joint with the sewage discharging port assembly, sewage enters the sewage discharging device through the sewage suction port assembly and is conveyed into water circulation outside the swimming pool under the action of the sewage discharging device, self-cleaning of the swimming pool cleaning machine is realized, the swimming pool cleaning machine can realize cleaning and sewage discharging of the filter box under water, the filter box does not need to be emptied manually, and the automation degree is high; the ultrasonic energy conversion sheet is arranged in the sealing cover, so that the filter box can be subjected to ultrasonic cleaning, the filter box is further subjected to deep cleaning, and the filter box is cleaned; the outside of the filter box is provided with a sealing cover, so that the swimming pool water entering the water channel completely enters the filter box, and meanwhile, the water after cleaning the filter box directly enters the underwater docking station through the sewage outlet assembly and cannot enter other positions in the swimming pool cleaning machine; the sewage suction port assembly is provided with a lifting device, so that the sewage suction butt joint port can be accurately and quickly butted with a sewage discharge port; docking station has wireless charging module under water, and the swimming pool cleaning machine has wireless rechargeable battery for when the swimming pool cleaning machine carries out the blowdown, wireless charging module charges to the swimming pool cleaning machine, improves the work efficiency of swimming pool cleaning machine.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (11)

1. The utility model provides a take swimming pool cleaning machine of blowdown function under water, includes the cleaning machine main part, its characterized in that: further comprising:

the signal detection device is arranged on the cleaner main body and used for detecting the position of the underwater docking station;

and the sewage draining port assembly is connected with the cleaner main body and used for docking with the underwater docking station, so that sewage in the cleaner main body enters the underwater docking station through the sewage draining port assembly to be discharged.

2. The pool cleaning machine with underwater sewage discharge function as claimed in claim 1, wherein: the cleaning machine is characterized in that a filtering device is arranged in the cleaning machine body, the sewage draining outlet assembly is communicated with the filtering device, and the sewage draining outlet assembly is respectively communicated with the inside of the filtering device and the outside of the cleaning machine body, so that dirt in the filtering device is discharged through the sewage draining outlet assembly.

3. The pool cleaning machine with underwater sewage discharge function as claimed in claim 2, wherein: the filtering device comprises a filtering box, the sewage draining outlet assembly is arranged inside the filtering box, and the sewage draining outlet assembly is communicated with the inside of the filtering box.

4. A pool cleaning machine with underwater sewage discharge function as claimed in any one of claims 1 to 3, wherein: the drain assembly comprises a drain and a drain cover plate, the drain cover plate is connected with the drain, and the drain cover plate can be opened or closed relative to the drain.

5. The pool cleaning machine with underwater sewage discharge function as claimed in claim 4, wherein: the drain with the size of drain apron contact department is not more than the size of drain flap makes the drain apron is opened along the direction of flow when filth is discharged, and is blocked when closing along the opposite direction of the direction of flow when filth is discharged.

6. A pool cleaning machine with underwater waste discharge function as claimed in claim 3, wherein: the filter device further comprises a sealing cover, the filter box is arranged inside the sealing cover, and the sealing cover is detachably connected with the cleaner body.

7. The pool cleaning machine with underwater sewage discharge function as claimed in claim 6, wherein: the sealing cover is provided with an opening which is communicated with the water channel of the cleaner body, so that the sealing cover is communicated with the water outlet of the cleaner body through the water channel, and the swimming pool water filtered by the filter box flows out of the opening and flows along the water channel.

8. The pool cleaning machine with underwater sewage discharge function as claimed in claim 6 or 7, wherein: and a cleaning device is arranged in the sealing cover and used for cleaning the filter box.

9. The swimming pool cleaning machine with underwater dirt discharging function of claim 8, characterized in that: the cleaning device is an ultrasonic energy conversion sheet.

10. A pool cleaning machine with underwater sewage discharge function as claimed in any one of claims 1 to 3, 5 to 7 and 9, wherein: the cleaner body is provided with a wireless rechargeable battery which is used for exchanging electric energy with the underwater docking station, so that the wireless rechargeable battery is charged when the underwater docking station is docked with the swimming pool cleaner for sewage disposal;

the wireless rechargeable battery is arranged in the cleaner body in a sealing mode, and the wireless rechargeable battery is electrically connected with the control module of the swimming pool cleaner.

11. The pool cleaning machine with underwater sewage discharge function as claimed in claim 1, wherein: the signal detection device comprises an infrared sensor and an ultrasonic sensor; or the like, or, alternatively,

the signal detection device comprises an infrared sensor, a collision switch is arranged on the cleaner body and is designed to be matched with the underwater docking station when the swimming pool cleaner moves onto the underwater docking station so that the swimming pool cleaner stops at a docking position with the underwater docking station; or the like, or, alternatively,

the signal detection device includes a vision sensor.

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