Water surface cleaner

Abstract

The utility model provides a water surface cleaner which comprises a shell, a volute assembly and an auxiliary water spraying device, and the shell is further provided with a first water inlet. The volute assembly comprises a volute and an impeller assembly, a water outlet is formed in the bottom of the shell and communicated with the water inlet channel, the volute is arranged at the water outlet, the impeller assembly is arranged in the volute, a water spraying opening is formed in the volute, and the auxiliary water spraying device is arranged at the end, away from the first water inlet, of the shell. An auxiliary water inlet is formed in the side, close to the first water inlet, of the auxiliary water spraying device, an auxiliary water spraying opening is formed in the side, away from the first water inlet, of the auxiliary water spraying device, and water sprayed out of the water spraying opening enters the auxiliary water spraying device through the auxiliary water inlet. According to the water surface cleaner, the water surface cleaner is pushed to move through the acting force generated when the water spraying openings and the auxiliary water spraying openings spray water, the moving track of the water surface cleaner is adjusted, energy can be saved, and the water energy utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pool's cleaning equipment, especially relates to a water surface cleaner. BACKGROUND

[0002] When the water surface cleaner cleans the swimming pool, it needs to turn when encountering the wall or obstacle, the existing water surface cleaner usually adopts multiple motor drive control to push the water surface cleaner to turn and move, the existing water surface cleaner does not set up water flow drive structure to recycle the flowing energy of filtered water flow, needs to set up drive device separately to drive, and energy consumption is big. CONTENT OF UTILITY MODEL

[0003] Therefore, the utility model discloses a water surface cleaner capable of utilizing the flowing energy of water flow to move, which can save energy.

[0004] To achieve the above-mentioned purpose, the utility model provides a water surface cleaner, which comprises:

[0005] A shell is internally provided with a water inlet channel, and a first water inlet is further provided in the shell and is in communication with the water inlet channel;

[0006] A volute assembly comprises a volute and an impeller assembly, a water outlet is provided in the bottom of the shell and is in communication with the water inlet channel, the volute is arranged at the water outlet, the impeller assembly is arranged in the interior of the volute, the volute is provided with a water outlet, and the water outlet is in communication with the water outlet; the impeller assembly can rotate relative to the shell to drive water to flow into the water inlet channel, the water outlet and then out of the water outlet after the impeller assembly, and the volute can rotate relative to the shell to change the water outlet direction of the water outlet, so as to change the advancing direction of the water surface cleaner;

[0007] An auxiliary water spraying device is arranged at one end of the shell away from the first water inlet, an auxiliary water inlet is provided on one side of the auxiliary water spraying device close to the first water inlet, an auxiliary water outlet is provided on one side of the auxiliary water spraying device away from the first water inlet, the water flow sprayed out of the water outlet enters the auxiliary water spraying device through the auxiliary water inlet, and the auxiliary water outlet is used for spraying the water flow in the auxiliary water spraying device to adjust the running track of the water surface cleaner.

[0008] Optionally, the water surface cleaner further comprises a water inlet platform arranged at the first water inlet, and the water flow enters the water inlet channel through the water inlet platform.

[0009] Optionally, the side wall of the water inlet platform is provided with a through hole for the inflow of water flow.

[0010] Optionally, the water inlet platform is further provided with a baffle, the baffle is rotatably connected with the water inlet platform, and one end of the baffle away from the water inlet platform can rotate towards or away from the water inlet platform, and the baffle is used for opening or closing the first water inlet.

[0011] Optionally, the number of auxiliary water outlets is at least two, and the two auxiliary water outlets are arranged at opposite ends of the auxiliary water spraying device, and the auxiliary water inlet is arranged between the two auxiliary water outlets.

[0012] Optionally, the water inlet platform is further provided with a filter assembly, the filter assembly comprises a first filter screen and a second filter screen, the first filter screen and the second filter screen are arranged in the water inlet channel, the second filter screen is arranged in the first filter screen, and the pore size of the filter holes of the second filter screen is smaller than the pore size of the filter holes of the first filter screen.

[0013] Optionally, the water inlet platform is further provided with a motor, and the inside of the shell is further provided with a containing cavity, the containing cavity and the water inlet channel are arranged adjacent to each other, the motor is arranged in the containing cavity, the motor is connected with the impeller assembly through the containing cavity, the motor can output positive and negative torque, and the motor is used to drive the rotation of the impeller assembly.

[0014] Optionally, the water inlet platform is further provided with a base, the base is arranged at the water outlet, the volute is rotatably arranged at the bottom of the base, the impeller assembly is arranged between the volute and the base, the base is further provided with a second water inlet, the motor is further connected with the impeller assembly through the second water inlet, and the second water inlet is in communication with the water outlet.

[0015] Optionally, the water inlet platform is further provided with a limiting assembly, the limiting assembly is arranged at the bottom of the base, and the limiting assembly is used to limit the rotation angle of the volute relative to the base.

[0016] Optionally, the water inlet platform is further provided with a circuit board and a sensor, the circuit board is arranged in the containing cavity, the circuit board is in communication connection with the motor, the sensor is arranged on the outer side wall of the shell, and the sensor is in communication connection with the circuit board. When the water surface cleaner detects an obstacle or a swimming pool wall, the sensor sends a signal to the circuit board, so that the circuit board switches the rotation direction of the motor, and then changes the movement direction of the water surface cleaner.

[0017] The utility model discloses the technical scheme's advantage: when needing to carry out the cleaning of swimming pool and other artificial pool, the water surface cleaner is placed in the corresponding artificial pool, and the impeller assembly rotates relative to the shell to produce suction, thereby making the water flow of the first water inlet near enter the water inlet channel through the first water inlet, then enters the volute through the water outlet after the impeller assembly, finally flows out from the water jet, and the water flow of the water jet is entered into the auxiliary water jet device through the auxiliary water inlet, and finally is sprayed from the auxiliary water jet. The volute can rotate relative to the shell under the drive of the water flow, and the application changes the advancing direction of the water surface cleaner. The application is provided with the auxiliary water jet device, and the auxiliary water inlet is arranged towards the first water inlet, so that the water flow of the water jet can utilize the impact force of itself, without additionally increasing the power mechanism to provide the power of the water flow into the auxiliary water inlet, so that the sprayed water flow can be sprayed into the auxiliary water jet device, and then sprayed from the auxiliary water jet again, so that the water flow of the water jet can be utilized again. The water surface cleaner is moved by the force of the water jet and the auxiliary water jet, the running track of the water surface cleaner is adjusted, energy can be saved, and water energy utilization rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by the person skilled in the art without creative labor on the basis of the drawings shown.

[0019] Figure 1 Structure diagram of the water surface cleaner of an embodiment Figure One ;

[0020] Figure 2 Structure diagram of the water surface cleaner of an embodiment Figure Two ;

[0021] Figure 3 Structure diagram of the water surface cleaner of an embodiment Figure Three ;

[0022] Figure 4 Sectional view of the water surface cleaner of an embodiment

[0023] Figure 5 Internal structure diagram of the water surface cleaner of an embodiment

[0024] Figure 6 Partial internal structure diagram of the water surface cleaner of an embodiment

[0025] Figure 7 ForFigure 6 a sectional view thereof;

[0026] Figure 8 a structural schematic view of a filter assembly of an embodiment;

[0027] Figure 9 a structural schematic view of a base of an embodiment;

[0028] Figure 10 a structural schematic view of an impeller assembly of an embodiment;

[0029] Figure 11 a structural schematic view of an embodiment in which the blades swing in a clockwise direction;

[0030] Figure 12 a structural schematic view of an embodiment in which the blades swing in an anticlockwise direction.

[0031] Wherein, 1, the shell; 11, water inlet channel; 12, first water inlet; 13, water outlet; 14, accommodating cavity; 15, first direction; 16, second direction; 2, impeller assembly; 21, first cover plate; 22, blade; 221, hinged end; 212, swing end; 23, second cover plate; 24, blocking rib; 3, volute; 31, water injection port; 4, auxiliary water injection device; 41, first pipeline; 411, auxiliary water inlet; 42, second pipeline; 421, auxiliary water injection port; 422, main pipeline; 423, branch pipe; 5, water inlet platform; 51, through hole; 52, baffle; 6, filter assembly; 61, first filter screen; 62, second filter screen; 7, motor; 71, base; 711, second water inlet; 8, sensor.

[0032] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly. In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three schemes, taking A and / or B as an example, including A technical scheme, B technical scheme, and A and B simultaneously meet the technical scheme; in addition, the technical schemes of each embodiment can be combined with each other, but it must be based on the realization of the technical personnel in the art, when the combination of technical schemes appears contradictory or unachievable, it should be considered that the combination of technical schemes does not exist, nor within the protection scope required by the present application.

[0035] As shown in Figures 1 to 7 The present application provides a water surface cleaner, which comprises a shell 1, a volute assembly and an auxiliary water spraying device 4. The shell 1 is internally provided with a water inlet channel 11. The shell 1 is also provided with a first water inlet 12, which is in communication with the water inlet channel 11. The volute assembly comprises an impeller assembly 2 and a volute 3. The bottom of the shell 1 is provided with a water outlet 13, which is in communication with the water inlet channel 11. The volute 3 is arranged at the bottom of the shell 1 and is located at the water outlet 13. The impeller assembly 2 is arranged inside the volute 3. The volute 3 is provided with a water spraying port 31, which is also in communication with the water outlet 13. The impeller assembly 2 can rotate relative to the shell 1 to drive the water to enter the water inlet channel 11, the water outlet 13 and then flow out from the water spraying port 31 after the impeller assembly 2 in sequence via the first water inlet 12. The volute 3 can rotate relative to the shell 1 to change the water spraying direction of the water spraying port 31, so as to change the advancing direction of the water surface cleaner. The auxiliary water spraying device 4 is arranged at one end of the shell 1 away from the first water inlet 12. The auxiliary water spraying device 4 is provided with an auxiliary water inlet 411 on the side close to the first water inlet 12 and an auxiliary water spraying port 421 on the side away from the first water inlet 12. The water flow sprayed from the water spraying port 31 enters the auxiliary water spraying device 4 via the auxiliary water inlet 411. The auxiliary water spraying port 421 is used for spraying the water flow to adjust the running track of the water surface cleaner.

[0036] When the pool and other artificial pool cleaning is needed, the water surface cleaner is placed in the corresponding artificial pool, the impeller assembly 2 rotates relative to the shell 1 to generate suction, so that the water near the first water inlet 12 flows into the water inlet channel 11 through the first water inlet 12, and then enters the volute 3 through the water outlet 13 after the impeller assembly 2, and finally flows out from the water jet 31. The water jet 31 sprays water flow into the auxiliary water jet device 4 through the auxiliary water inlet 411, and finally sprays out from the auxiliary water jet 421. The volute assembly is provided, the volute 3 can rotate relative to the shell 1 under the drive of the water flow, the direction of travel of the water surface cleaner is changed, the auxiliary water jet device 4 is provided, and the auxiliary water inlet 411 is arranged towards the first water inlet 12, so that the water flow sprayed by the water jet 31 can utilize its own impact force, without the need to additionally increase the power mechanism to provide the power of the water flow into the auxiliary water inlet 411. The water flow sprayed into the auxiliary water jet device 4 and then sprayed out from the auxiliary water jet 421 again, so that the kinetic energy of the water flow sprayed by the water jet 31 can be utilized again. The water surface cleaner is moved by the force of the water jet 31 and the auxiliary water jet 421 when spraying water, the running track of the water surface cleaner is adjusted, energy can be saved, and water energy utilization rate can be improved.

[0037] Reference Figures 1-3 The auxiliary water jet device 4 comprises a first pipeline 41 and a second pipeline 42 in communication, the first pipeline 41 is provided with an auxiliary water inlet 411 on one side close to the first water inlet 12, the second pipeline 42 is provided with an auxiliary water jet 421 on one side away from the first water inlet 12, the water jet 31 is arranged opposite to the auxiliary water inlet 411 when the volute 3 sprays water towards the first direction 15, the water surface cleaner keeps advancing, and the water jet 31 is arranged away from the auxiliary water inlet 411 when the volute 3 sprays water towards the second direction 16, the water surface cleaner keeps retreating.

[0038] Specifically, the first pipeline 41 is arranged in the middle of the second pipeline 42, the first pipeline 41 is vertically arranged, the diameter of the auxiliary water inlet 411 is not less than the diameter of the water jet 31, the second pipeline 42 is horizontally arranged, and the number of the auxiliary water jet 421 is at least two. When the number of the auxiliary water jet 421 is two, the two auxiliary water jets 421 are arranged on opposite ends of the second pipeline 42, and the auxiliary water inlet 411 is arranged between the two auxiliary water jets 421.

[0039] Specifically, the second pipeline 42 comprises a main pipeline 422 and at least two branch pipelines 423, the first pipeline 41 is arranged at the middle of the main pipeline 422, when the number of the branch pipelines 423 is two, the two branch pipelines 423 are arranged at opposite ends of the main pipeline 422, and each branch pipeline 423 is provided with an auxiliary water outlet 421, and the axial direction of the branch pipeline 423 is parallel to the first direction 15, so that the water outlet direction of the auxiliary water outlet 421 is substantially parallel to the advancing direction of the water surface cleaner.

[0040] With reference to Figure 2 The water surface cleaner provided by the application further comprises a water inlet platform 5 arranged at the first water inlet 12, and a through hole 51 is arranged on the side wall of the water inlet platform 5, and the through hole 51 is used for water inflow.

[0041] Specifically, the number of the through holes 51 is multiple, and the multiple through holes 51 are arranged at intervals, and further, the through holes 51 are in the shape of a strip.

[0042] With reference to Figure 5 The water surface cleaner provided by the application further comprises a baffle 52, one end of the baffle 52 is rotationally connected with the side wall of the water inlet platform 5, the end of the baffle 52 away from the water inlet platform 5 can rotate towards or away from the water inlet platform 5, the baffle 52 is used for opening or closing the first water inlet 12, and water flows into the water inlet platform 5 in sequence through the first water inlet 12, the top surface of the water inlet platform 5 and the top surface of the baffle 52, and then enters the water inlet channel 11.

[0043] When the water surface cleaner is normally working, the water inlet platform 5 is below the horizontal plane and has a certain height difference with the horizontal plane, the baffle 52 is arranged below the water inlet platform 5, and the top surface of the baffle 52 has a certain height difference with the top surface of the water inlet platform 5, when the water surface cleaner starts to work, water flow acts on the baffle 52 to make the baffle 52 rotate to be parallel to the horizontal plane, so as to facilitate the garbage in the swimming pool to enter, when the water surface cleaner stops to work, the baffle 52 returns to the natural state, at this time, the baffle 52 is substantially perpendicular to the horizontal plane, so as to prevent the garbage in the shell 1 from being discharged to the outside of the shell 1 through the first water inlet 12.

[0044] The water inlet platform 5 can guide water flow, and the water inlet platform 5 and the baffle 52 have a certain height difference, and the combination of the two facilitates water flow to accelerate.

[0045] With reference to Figure 1 、 Figure 5 and Figure 8The water surface cleaner also comprises a filtering assembly 6 arranged in the water inlet channel 11. The filtering assembly 6 comprises a first filtering screen 61 and a second filtering screen 62, both arranged in the water inlet channel 11, and the second filtering screen 62 is arranged in the first filtering screen 61. The pore size of the filtering holes of the second filtering screen 62 is smaller than that of the first filtering screen 61. The double filtering device is arranged to coarsely filter and finely filter. The first filtering screen 61 is used to filter large garbage such as leaves and fruits, and the second filtering screen 62 is used to filter small garbage such as dust.

[0046] Referring to Figure 4 and Figure 7 The water surface cleaner also comprises a motor 7, and a containing cavity 14 is arranged in the inner part of the shell 1. The containing cavity 14 is arranged adjacent to the water inlet channel 11. The motor 7 is arranged in the containing cavity 14 and connected with the impeller assembly 2 through the containing cavity 14. The motor 7 can output positive and negative torque and is used to drive the impeller assembly 2 to rotate.

[0047] Specifically, the containing cavity 14 is sealed to prevent water from entering the containing cavity 14.

[0048] Referring to Figure 6 and Figure 9 The water surface cleaner also comprises a base 71 arranged at the water outlet 13. The volute 3 is rotatably arranged at the bottom of the base 71. The impeller assembly 2 is arranged between the volute 3 and the base 71. The base 71 is also provided with a second water inlet 711. The motor 7 is connected with the impeller assembly 2 through the second water inlet 711. The second water inlet 711 is in communication with the water outlet 31.

[0049] Specifically, the volute 3 is detachably arranged on the base 71.

[0050] The water surface cleaner also comprises a limiting assembly arranged at the bottom of the base 71. The limiting assembly is used to limit the rotation angle of the volute 3 relative to the base 71.

[0051] Specifically, the limiting assembly comprises oppositely arranged first and second limiting blocks. The first and second limiting blocks are arranged at the bottom of the base 71. When the volute 3 rotates to abut against the first limiting block, the volute 3 sprays water in the first direction 15, and the water surface cleaner moves in the second direction 16. The first direction 15 and the second direction 16 are opposite. When the volute 3 rotates to abut against the second limiting block, the volute 3 sprays water in the second direction 16, and the water surface cleaner moves in the first direction 15.

[0052] Specifically, the first direction 15 is the backward direction of the water surface cleaner, and the second direction 16 is the forward direction of the water surface cleaner.

[0053] The motor 7 outputs torque to drive the impeller assembly 2, water flows into the impeller assembly 2 through the first water inlet 12, and then drives the volute 3 under the impact of the water flow. When the volute 3 rotates to the first limit block, it cannot continue to rotate and is limited, thereby determining the direction of the water outlet 31. The water flow is accelerated by the impeller assembly 2 and thrown out of the water outlet 31, driving the water surface cleaner to move in the direction opposite to the direction of the water outlet 31.

[0054] Switching the output torque direction of the motor 7 can change the rotation direction of the impeller assembly 2 and the volute 3. When the volute 3 rotates to the second limit block in the other direction, the volute 3 cannot continue to rotate and is limited, thereby determining the water outlet direction of the water outlet 31, thereby changing the moving direction of the water surface cleaner.

[0055] Reference Figure 10 The impeller assembly 2 includes a first cover plate 21, a second cover plate 23, and a plurality of blades 22 arranged between the first cover plate 21 and the second cover plate 23, and the first cover plate 21 and the second cover plate 23 are connected. Specifically, the output shaft of the motor 7 passes through the first cover plate 21 and is connected with the second cover plate 23 to drive the first cover plate 21 and the second cover plate 23 to rotate.

[0056] Reference Figure 10 Each blade 22 has a hinged end 221 and a swing end 212, the hinged end 221 is hinged to the first cover plate 21 and / or the second cover plate 23, and the impeller assembly 2 further includes a plurality of limit ribs 24 mounted on the first cover plate 21 and / or the second cover plate 23 for limiting the position of the swing end 212. The blade 22 swings around the hinged end 221 after being impacted by the water flow, and the swing end 212 cannot continue to swing after abutting against the corresponding limit rib 24, forming a fixed angle.

[0057] Reference Figure 12 When the impeller assembly 2 rotates clockwise, each blade 22 swings in the direction of the arrow in the figure under the water flow resistance until it abuts against the corresponding limit rib 24, forming the high-efficiency backward-curved impeller state of the state shown in the figure. Correspondingly, reference Figure 11 When the impeller assembly 2 rotates counterclockwise, each blade 22 swings in the direction of the arrow in the figure under the water flow resistance until it abuts against another limit rib 24, forming the high-efficiency backward-curved impeller state of the state shown in the figure. Therefore, the impeller assembly 2 in the embodiment can automatically adjust the angle of each blade 22 according to the rotation direction, adapt to the water flow, and improve the working efficiency.

[0058] Specifically, if the limit rib 24 is not provided, the rotation angle of the blade 22 is 360°, and in the embodiment, the swing angle range of the corresponding blade 22 limited by the adjacent two limit ribs 24 is 90°-160°.

[0059] The water surface cleaner further comprises a circuit board, which is in communication connection with the motor 7, and is used for controlling the start and stop of the motor 7, and is further used for adjusting the rotating speed of the motor shaft of the motor 7, and is further used for switching the forward and reverse rotation of the motor 7.

[0060] With reference to Figure 1 The water surface cleaner further comprises a sensor 8, which is arranged on the outer side wall of the shell 1, and is in communication connection with the circuit board, and sends a signal to the circuit board when the water surface cleaner touches the wall, and the circuit board switches the operation of the motor 7, thereby changing the moving direction of the water surface cleaner.

[0061] Further, the running track of the water surface cleaner can be set in advance, and then the water surface cleaner is controlled to clean the artificial pool to be cleaned along the set running track through the cooperation of the sensor 8 and the circuit board.

[0062] The water surface cleaner further comprises a power supply structure, which is used for supplying power to the water surface cleaner, and is arranged in the accommodating cavity 14.

[0063] The water surface cleaner further comprises a solar panel, which is arranged at the top end of the inner surface of the shell 1, and is electrically connected with the power supply structure to supply power to the power supply structure.

[0064] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent device transformation or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A water surface cleaner characterized by, The utility model relates to a water surface cleaner, including: The shell is internally provided with a water inlet channel, and the shell is also provided with a first water inlet, and the first water inlet is communicated with the water inlet channel; A volute assembly is arranged on the bottom of the shell, and the volute assembly comprises a volute and an impeller assembly, the volute is arranged at the water outlet, the impeller assembly is arranged in the volute, the volute is provided with a water outlet, the water outlet is communicated with the water inlet channel, the volute is arranged at the water outlet, the impeller assembly is arranged in the volute, the volute is provided with a water outlet, the water outlet is communicated with the water outlet, and the impeller assembly can rotate relative to the shell to drive water to enter the water inlet channel, the water outlet and then flow out from the water outlet after the impeller assembly, the volute can rotate relative to the shell to change the water outlet direction of the water outlet, so as to change the advancing direction of the water surface cleaner; An auxiliary water spraying device is arranged at one end of the shell away from the first water inlet, the auxiliary water spraying device is provided with an auxiliary water inlet on one side close to the first water inlet, the auxiliary water spraying device is provided with an auxiliary water outlet on one side away from the first water inlet, the water outlet of the water outlet is communicated with the water outlet, and the water outlet of the water outlet is communicated with the water outlet.

2. The water surface cleaner of claim 1, wherein, The water inlet platform is arranged at the first water inlet, and water flows into the water inlet channel through the water inlet platform.

3. The water surface cleaner of claim 2, wherein, The side wall of the water inlet platform is provided with a through hole for the inflow of water.

4. The water surface cleaner of claim 2, wherein, The baffle is rotatably connected with the water inlet platform, one end of the baffle away from the water inlet platform can rotate towards or away from the water inlet platform, and the baffle is used for opening or closing the first water inlet.

5. The water surface cleaner of claim 1, wherein, The number of the auxiliary water outlets is at least two, and the two auxiliary water outlets are arranged at opposite ends of the auxiliary water spraying device, and the auxiliary water inlet is arranged between the two auxiliary water outlets.

6. The water surface cleaner of claim 1, wherein, The filter assembly comprises a first filter screen and a second filter screen, the first filter screen and the second filter screen are arranged in the water inlet channel, the second filter screen is arranged in the first filter screen, and the pore size of the filter holes of the second filter screen is smaller than that of the first filter screen.

7. The water surface cleaner of claim 1, wherein, The shell is internally provided with a water inlet channel, and the shell is also provided with a first water inlet, and the first water inlet is communicated with the water inlet channel; 8. The water surface cleaner of claim 7, wherein, The base is arranged at the water outlet, the volute is rotatably arranged at the bottom of the base, the impeller assembly is arranged between the volute and the base, the base is also provided with a second water inlet, the motor is also connected with the impeller assembly through the second water inlet, and the second water inlet is communicated with the water outlet.

9. The water surface cleaner of claim 8, wherein, The limiting assembly is arranged at the bottom of the base and is used to limit the rotating angle of the volute relative to the base.

10. The water surface cleaner of claim 7, wherein, The circuit board is arranged in the accommodating cavity and is in communication connection with the motor. The sensor is arranged on the outer sidewall of the shell and is in communication connection with the circuit board. When the water surface cleaner hits an obstacle or a pool wall, the sensor sends a signal to the circuit board, so that the circuit board switches the rotating direction of the motor, thereby changing the moving direction of the water surface cleaner.

Images