CN113774874A

CN113774874A - Water surface cleaner

Info

Publication number: CN113774874A
Application number: CN202111061456.5A
Authority: CN
Inventors: 黄志雄; 张文孝
Original assignee: Intex Industries Xiamen Co Ltd
Current assignee: Intex Industries Xiamen Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2021-12-10

Abstract

The invention discloses a water surface cleaner, which comprises a floatable cleaner main body, a driving mechanism and a filtering mechanism, wherein the driving mechanism and the filtering mechanism are arranged on the cleaner main body; the driving mechanism is used for driving the cleaner main body to move on the water surface; the filtering mechanism is used for filtering the water flow. The water surface cleaner can clean dirt floating on the water surface, effectively replaces manual fishing operation, and improves cleaning efficiency.

Description

Water surface cleaner

Technical Field

The invention relates to the field of cleaning equipment, in particular to a water surface cleaner.

Background

For various kinds of dirt floating on the water surface, the dirt floating on the water surface needs to be cleaned because it causes serious pollution to the water quality and affects the beauty at the same time. However, at present, the dirt floating on the water surface is cleaned by adopting a manual salvage mode, the cleaning efficiency is low, and the danger is higher when cleaning personnel operate.

Disclosure of Invention

The invention aims to provide a water surface cleaner which can clean dirt floating on a water surface, effectively replace manual fishing operation and improve cleaning efficiency.

In order to achieve the above purpose, the solution of the invention is:

a water surface cleaner comprises a floatable cleaner main body, a driving mechanism and a filtering mechanism, wherein the driving mechanism and the filtering mechanism are arranged on the cleaner main body; the driving mechanism is used for driving the cleaner main body to move on the water surface; the filtering mechanism is used for filtering the water flow.

The driving mechanism is a hydraulic driving mechanism.

The hydraulic driving mechanism is a water-spraying hydraulic driving mechanism.

The water-spraying type hydraulic driving mechanism comprises a water-spraying seat and a switching impeller, wherein the water-spraying seat and the switching impeller are arranged on the cleaner main body; the water spraying seat is internally provided with a water distribution cavity and an impeller cavity, the water distribution cavity is communicated with the impeller cavity through a water passing port, the water spraying seat is also provided with a water inlet interface communicated with the impeller cavity and two water spraying ports which are oppositely arranged and communicated with the water distribution cavity, the water distribution cavity is matched with a switching piece, and the switching piece is used for controlling the water inlet interface to be selectively communicated with one of the two water spraying ports; the switching impeller is rotatably matched in the impeller cavity and is in transmission fit with the switching piece through the timing switching device.

The water-spraying type hydraulic driving mechanism further comprises two water flow speed increasers, inlets of the two water flow speed increasers are respectively connected with two water spraying ports of the water spraying seat, and outlets of the two water flow speed increasers are reversely arranged.

The water flow speed increaser is internally provided with a speed increasing flow channel for communicating the inlet and the outlet of the water flow speed increaser, and the flow area of the speed increasing flow channel is gradually reduced along the direction from the inlet to the outlet of the water flow speed increaser.

Two water diversion ports communicated with the water passing port are arranged in the water diversion cavity, and the two water diversion ports are respectively communicated with the two water spraying ports; the switching piece is arranged in the water distribution cavity in a swinging manner, and movably plugs the two water distribution ports; the timing switching device drives the switching piece to swing in a reciprocating mode.

The timing switching device comprises a switching cam, a switching slide block and a switching rod; the switching cam is rotatably arranged on the water spraying seat and is driven to rotate by the switching impeller, and the end face of the switching cam is provided with a switching cam groove; the switching slide block is arranged on the water spraying seat in a translation way, the switching slide block is provided with a rotatable guide slide block, the guide slide block is in sliding connection with the switching cam groove, and the switching slide block is provided with a swinging groove; the switching rod is connected with the switching piece, and the free end of the switching rod is inserted into the swing groove of the switching slide block.

The switching cam, the switching slide block and the switching rod of the timing switching device are all installed on the outer side of the water spraying seat, the switching piece is connected with the switching rod through a connecting shaft which penetrates through the side wall of the water spraying seat in a rotatable mode, the axis of the switching impeller is connected with an impeller shaft, the impeller shaft penetrates through the side wall of the water spraying seat in a rotatable mode, and the impeller shaft and the switching cam are connected in a synchronous rotating mode.

The cleaner main body is provided with a water passing cavity, and a sewage inlet and a clean water outlet which are communicated with the water passing cavity; the number of the clean water outlets is two, and the two clean water outlets are arranged oppositely; the number of the sewage inlets is two, and the two sewage inlets are oppositely arranged; one of the two clean water outlets and one of the two sewage inlets are positioned at one side of the cleaner body, and the other of the two clean water outlets and the other of the two sewage inlets are positioned at the other side of the cleaner body; the filter mechanism comprises a filter screen arranged in a water passing cavity of the cleaner main body, and the filter screen divides the water passing cavity into a sewage cavity communicated with two sewage inlets and a clear water cavity communicated with two clear water outlets; the water-spraying type hydraulic driving mechanism is arranged in a clean water chamber of the cleaner main body, and two water spraying ports of a water spraying seat of the water-spraying type hydraulic driving mechanism are used for spraying water flow to two clean water outlets respectively.

The cleaner main body is provided with a water passing cavity, and a sewage inlet and a clean water outlet which are communicated with the water passing cavity; the filtering mechanism comprises a filter screen arranged in a water passing cavity of the cleaner main body, and the filter screen divides the water passing cavity into a sewage cavity communicated with the sewage inlet and a clear water cavity communicated with the clear water outlet.

The cleaner main body is matched with a rolling brush which is arranged corresponding to the sewage inlet, the rolling brush is opposite to the sewage inlet which is arranged corresponding to the rolling brush, and the rolling brush is positioned outside the sewage inlet; the water-spraying type hydraulic driving mechanism drives the rolling brush to rotate.

The hydraulic driving mechanism is a rotary hydraulic driving mechanism; the cleaner main body is matched with a driving wheel with a rotating blade, and a rotary hydraulic driving mechanism drives the driving wheel to rotate.

The rotary hydraulic driving mechanism comprises an impeller seat and a power impeller; the power impeller is rotatably arranged in the inner cavity of the impeller seat, and the power impeller is in transmission connection with the driving wheel to drive the driving wheel to rotate.

The power impeller is in transmission connection with the driving wheel through the timing reversing device.

The number of the driving wheels is two, and the two driving wheels can be respectively and rotatably arranged on two sides of the cleaner main body;

the timing reversing device is provided with a transmission shaft which alternately performs positive rotation and reverse rotation, and two ends of the transmission shaft are respectively in transmission connection with the two driving wheels.

The two driving wheels and the transmission shaft are arranged in a synchronous rotating mode.

The two ends of the transmission shaft are divided into a first end and a second end, and the two driving wheels are divided into a first driving wheel and a second driving wheel; the first end of the transmission shaft is in transmission connection with the first driving wheel, the first driving wheel and the transmission shaft are arranged in a synchronous rotating mode, and the second end of the transmission shaft is connected with the second driving wheel through the one-way ratchet wheel device.

The one-way ratchet device comprises an outer ratchet and an outer stop piece; the outer ratchet wheel is in transmission connection with the second end of the transmission shaft and is synchronously rotated with the transmission shaft, and a plurality of outer ratchets are arranged on the periphery of the outer ratchet wheel; the outer stop piece is arranged on a second driving wheel in a swinging mode, the second driving wheel and the outer ratchet wheel are coaxially arranged, and the outer stop piece is in contact with the outer ratchet of the outer ratchet wheel and only allows the outer ratchet wheel to rotate in one direction relative to the second driving wheel.

The one-way ratchet device comprises an inner ratchet and an inner stop piece; the inner ratchet wheel is coaxially connected with the second driving wheel and synchronously rotates with the second driving wheel, and a plurality of inner ratchets are arranged on the inner periphery of the inner ratchet wheel; the inner stop piece is in transmission connection with the second end of the transmission shaft and is arranged in a manner of synchronous rotation with the transmission shaft, at least one elastic pawl is arranged on the outer wall of the inner stop piece, and the elastic pawl of the inner stop piece is in contact with the inner ratchet of the inner ratchet wheel and only allows the inner ratchet wheel to rotate in one direction relative to the inner stop piece.

The timing reversing device comprises a driving gear, a driven gear, a reversing cam, an idler wheel, a reversing swinging piece and a transmission gear; the driving gear, the driven gear, the reversing cam and the transmission gear are rotatably matched with the cleaner main body, the power impeller drives the driving gear and the reversing cam to rotate, the driving gear is meshed with the driven gear, the end face of the reversing cam is provided with a reversing cam groove, and the transmission gear is connected with the transmission shaft; the reversing swinging piece is matched with the cleaner body in a swinging mode and is in sliding connection with the reversing cam groove; the idler wheel is rotatably arranged on the reversing swinging piece and is meshed with the transmission gear; when the reversing cam rotates, the reversing swinging piece is driven to swing in a reciprocating mode to drive the idler wheel to swing in a reciprocating mode, so that the idler wheel is meshed with the driving gear and the driven gear alternately, and the transmission gear is controlled to rotate forwards and reversely alternately.

The cleaner main body is provided with a water passing chamber, a clear water outlet and two sewage inlets, the two sewage inlets are oppositely arranged, and the sewage inlets are positioned on the side of the cleaner main body; the filter mechanism comprises a filter screen arranged in a water passing cavity of the cleaner main body, and the filter screen divides the water passing cavity into a sewage cavity communicated with a sewage inlet and a clear water cavity communicated with a clear water outlet; the rotary hydraulic driving mechanism is arranged in a clean water chamber of the cleaner main body, and a clean water outlet is connected with a water outlet of an impeller seat of the rotary hydraulic driving mechanism so that the clean water outlet is communicated with the clean water chamber through an inner cavity of the impeller seat.

The cleaner main body is provided with a water passing chamber, a sewage inlet and a clean water outlet; the filter mechanism comprises a filter screen arranged in a water passing cavity of the cleaner main body, and the filter screen divides the water passing cavity into a sewage cavity communicated with a sewage inlet and a clear water cavity communicated with a clear water outlet; the rotary hydraulic driving mechanism is arranged in a clean water chamber of the cleaner main body, and a clean water outlet is connected with a water outlet of an impeller seat of the rotary hydraulic driving mechanism so that the clean water outlet is communicated with the clean water chamber through an inner cavity of the impeller seat.

The clear water outlet is positioned at the bottom of the cleaner main body.

The cleaner body comprises an upper cover with an opening at the lower side and a lower cover with an opening at the upper side; the upper cover and the lower cover are detachably connected, and the filter screen is clamped between the upper cover and the lower cover; the sewage inlet is arranged on the upper cover, and the clear water outlet is arranged on the lower cover.

The sewage cavity cooperates with the one-way valve plate used for opening and closing the sewage inlet, the one-way valve plate can be arranged in the sewage cavity in a swinging mode, and the one-way valve plate is movably abutted to the inner peripheral edge of the sewage inlet.

After the scheme is adopted, the invention has the following advantages:

1. when the water surface cleaner is used, the cleaner main body floats on the water surface, the driving mechanism drives the cleaner main body to move on the water surface, and the filtering mechanism filters water flow on the water surface to intercept and collect dirt on the water surface, so that the dirt floating on the water surface is cleaned; therefore, the water surface cleaner can effectively replace manual fishing operation, and improves the cleaning efficiency.

2. The driving mechanism of the invention is a hydraulic driving mechanism which drives the cleaner main body to move on the water surface through flowing water flow, so that the invention does not need to consider the waterproof treatment of electronic devices, and is beneficial to simplifying the structure and the cost of the invention.

3. The water surface cleaner can realize direction-changing movement, so that dirt floating on the water surface can be cleaned by the water surface cleaner.

Drawings

FIG. 1 is an exploded view of a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 3 is a combined cross-sectional view of a first embodiment of the present invention;

FIG. 4 is a partial block diagram of FIG. 1 according to a first embodiment of the present invention;

FIG. 5 is a partial block diagram of FIG. 2 according to a first embodiment of the present invention;

FIG. 6 is a partial block diagram of FIG. 3 according to a first embodiment of the present invention;

FIG. 7 is a partial cross-sectional view of a first embodiment of the present invention;

fig. 8 is an exploded view of a timing switching device according to a first embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a reversing cam according to a first embodiment of the invention;

FIG. 10 is a partial structural view of the upper cover according to the first embodiment of the present invention;

FIG. 11 is an exploded view of the second embodiment of the present invention;

FIG. 12 is a schematic structural diagram according to a second embodiment of the present invention;

FIG. 13 is a combined sectional view of a second embodiment of the present invention;

FIG. 14 is a partial structural view of a second embodiment of the present invention;

FIG. 15 is a partial cross-sectional view of a second embodiment of the present invention;

FIG. 16 is an exploded view of the third embodiment of the present invention;

FIG. 17 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 18 is a combined sectional view of a third embodiment of the present invention;

FIG. 19 is a partial structural view of a third embodiment of the present invention in FIG. 1;

FIG. 20 is a partial structural view of a third embodiment of the present invention;

FIG. 21 is a partial cross-sectional view of example III of the present invention 1;

FIG. 22 is a partial sectional view of a third embodiment of the present invention, FIG. 2;

FIG. 23 is a partial cross-sectional view of a third embodiment of the present invention, FIG. 3;

fig. 24 is a partially exploded view of a timing reversing device according to a third embodiment of the present invention;

FIG. 25 is an exploded view of a one-way ratchet device according to a third embodiment of the present invention;

description of reference numerals:

the cleaner comprises a cleaner body 1, a water passing chamber 10, a sewage chamber 101, a clean water chamber 102, an upper cover 11, a sewage inlet 111, a connecting part 112, a lower cover 12, a clean water outlet 121, a fastener 13, a connecting piece 13', a one-way valve plate 14, a rolling brush 15 and a floating body 16,

the filter mechanism 2, the filter screen 21,

the water-spraying type hydraulic drive mechanism 3, a water diversion cavity 301, an impeller cavity 302, a water passing port 303, a water diversion port 304, an elastic gasket 305, a water spraying seat 31, a water inlet interface 311, a water spraying port 312, a switching impeller 32, an impeller shaft 321, a switching piece 33, a connecting shaft 331, a timing switching device 34, a switching cam 341, a switching cam groove 3411, a switching slider 342, a guide slider 3421, a swinging groove 3422, a switching rod 343, a mounting bracket 344, a mounting sliding groove 3441, a cam cover 345, a water flow speed increaser 35, an inlet 3501, an outlet 3502, a speed increasing channel 3503, a speed increasing pipe 351 and a speed increasing inner core 352,

rotary hydraulic driving mechanism 3', impeller seat 31', water inlet 311', water outlet 312', power impeller 32', power shaft 321', timing reversing device 33', transmission shaft 331', driving gear 332', driven gear 333', reversing cam 334', reversing cam groove 3341', idle gear 335', reversing swinging piece 336', transmission gear 337', fixing support 338', arc-shaped guide hole 3381',

the driving wheel 4, the rotary vane 401, the first driving wheel 41, the second driving wheel 42,

the one-way ratchet device 5, an outer ratchet 51, an outer ratchet 511, an outer stop 52, an inner ratchet 53, an inner ratchet 531, an inner stop 54 and an elastic pawl 541.

Detailed Description

As shown in fig. 1 to 25, the present invention discloses a water surface cleaner, which includes a floatable cleaner body 1, and a filter mechanism 2 and a driving mechanism mounted to the cleaner body 1; wherein the driving mechanism is used for driving the cleaner body 1 to move on the water surface; the filtering mechanism 2 is used for filtering water flow.

When the water surface cleaner is used, the cleaner main body 1 floats on the water surface, the driving mechanism drives the cleaner main body 1 to move on the water surface, and the filtering mechanism 2 filters water flow on the water surface to intercept and collect dirt on the water surface, so that the dirt floating on the water surface is cleaned; therefore, the water surface cleaner can effectively replace manual fishing operation, and improves the cleaning efficiency.

In the present invention, the driving mechanism is a hydraulic driving mechanism, the cleaner body 1 is driven to move on the water surface by flowing water, and the flowing water can be generated by a water pump; the cleaner body 1 is driven to move by the hydraulic driving mechanism, so that the waterproof treatment of electronic devices is not required to be considered, and the structure and the cost of the cleaner are simplified.

The driving mechanism of the present invention may be an electric driving mechanism, and the cleaner body 1 is driven by electric power to move on the water surface, thereby cleaning dirt floating on the water surface.

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

The first embodiment is as follows:

referring to fig. 1 to 10, in the first embodiment of the present invention, the driving mechanism is a hydraulic driving mechanism, which is specifically a water-jet hydraulic driving mechanism 3, and the water-jet hydraulic driving mechanism 3 drives the cleaner body 1 to move by jetting water flow.

In the first embodiment of the present invention, the water-jet hydraulic driving mechanism 3 includes a water-jet seat 31 and a switching impeller 32 mounted on the cleaner body 1; the water spraying seat 31 is internally provided with a water distribution cavity 301 and an impeller cavity 302, the water distribution cavity 301 is communicated with the impeller cavity 302 through a water passing port 303, the water spraying seat 31 is also provided with a water inlet interface 311 communicated with the impeller cavity 302 and two water spraying ports 312 which are oppositely arranged and communicated with the water distribution cavity 301, the water distribution cavity 301 is matched with a switching piece 33, and the switching piece 33 is used for controlling the water inlet interface 311 to be selectively communicated with one of the two water spraying ports 312; the switching impeller 32 is rotatably fitted in the impeller cavity 302, and the switching impeller 31 is in transmission fit with the switching member 33 through the timing switching device 34 to drive the switching member 33 to perform switching action at a timing, so that the two water outlets 312 are alternately communicated with the water inlet 311; the water inlet 311 is used for introducing an external water flow (a water flow output by the water pump) into the water spray seat 31 to make the water spray nozzles 312 of the water spray seat 31 spray water, the two water spray nozzles 312 are alternately communicated with the water inlet 311, and the two water spray nozzles 312 are oppositely arranged, so that the two water spray nozzles 312 can alternately spray water to make the water spray type hydraulic driving mechanism 3 drive the cleaner main body 1 to alternately move forward and backward, so that the cleaner main body 1 of the present invention can move in a direction-changing manner, and the water surface cleaner of the present invention can clean dirt floating on the water surface as far as possible.

In the first embodiment of the present invention, two water diversion ports 304 communicated with the water passing port 303 are arranged in the water diversion cavity 301, and the two water diversion ports 304 are respectively communicated with the two water spraying ports 32; the switching piece 33 is arranged in the water diversion cavity 301 in a swinging manner, and the switching piece 33 movably plugs the two water diversion ports 304 to control the water inlet interface 311 to be selectively communicated with one of the two water spraying ports 312; and the timing switching device 34 drives the switching member 33 to swing back and forth to control the two water outlets 312 to alternately communicate with the water inlet 311. Wherein the water diversion opening 304 can be fitted with an elastic gasket 305 so that the switch 33 can completely block the water diversion opening 304.

In the first embodiment of the present invention, the timing switching device 34 includes a switching cam 341, a switching slider 342, and a switching lever 343; the switching cam 341 is rotatably mounted on the water spraying seat 31, the switching cam 341 is driven by the switching impeller 32 to rotate, and the end surface of the switching cam 341 is provided with a switching cam groove 3411; the switching slider 342 is mounted on the water spraying base 31 in a translation manner, the switching slider 342 is provided with a rotatable guiding slider 3421, the guiding slider 3421 is connected with the switching cam groove 3411 in a sliding manner, and the switching slider 342 is also provided with a swinging groove 3422; the switching rod 343 is connected with the switching member 33, and the free end of the switching rod 343 is inserted into the swing groove 3422 of the switching slider 342; when the switching cam 341 rotates, the rotatable guide block 3421 on the switching block 342 can circularly slide along the switching cam groove 3411 of the switching cam, so that the switching block 3421 reciprocates; the free end of the switching rod 343 is inserted into the swing groove 3422 of the switching slider 342, so that the switching slider 3421 reciprocates to drive the switching rod 343 to swing reciprocally, thereby driving the switching member 33 to swing reciprocally.

In the first embodiment of the present invention, the switching cam 341, the switching slider 342, and the switching rod 343 of the timing switching device 34 are all installed outside the water spraying seat 31, so that the water flow entering the water spraying seat 31 can be prevented from interfering with the actions of the switching cam 341, the switching slider 342, and the switching rod 343, and the timing switching device 34 can operate stably and reliably; the switching cam 341 and the switching slider 342 may be mounted on a mounting bracket 344, and the mounting bracket 344 is mounted on the outer side of the water spraying base 31, the mounting bracket 344 may be locked with the water spraying base 31 by screws, the mounting bracket 344 may be provided with a mounting chute 3441 slidably connected with the switching slider 342, the switching cam 341 may be rotatably mounted on the mounting bracket 344 by a cam cover 345, two ends of the switching cam 341 are rotatably connected with the mounting bracket 344 and the cam cover 345, respectively, and the cam cover 345 may be locked to the mounting bracket 344 by screws; the axis of the switching impeller 32 can be connected with an impeller shaft 321, the impeller shaft 321 can be integrally formed with the switching impeller 32, the impeller shaft 321 can rotatably penetrate through the side wall of the water spraying seat 31, the impeller shaft 321 is synchronously and rotatably connected with the switching cam 341 so that the switching impeller 32 drives the switching cam 341 to synchronously rotate, and the impeller shaft 321 can be in transmission connection with the switching cam 341 through mechanical transmission mechanisms such as a turbine worm transmission mechanism and a gear transmission mechanism; the switch 33 can be connected to the switch rod 343 through a rotatable connecting shaft 331 passing through the sidewall of the water spraying base 31, and the connecting shaft 331 can be integrally formed with the switch 33.

In the first embodiment of the present invention, the water-jet hydraulic driving mechanism 3 further includes two water-jet speed increasers 35, inlets 3501 of the two water-jet speed increasers 35 are respectively connected with the two water-jet ports 312 of the water-jet seat 31, and outlets 3502 of the two water-jet speed increasers 35 are oppositely arranged; the present invention can increase the flow rate of the water jet from the water jet type hydraulic driving mechanism 3 by providing the water flow speed increaser 35, thereby driving the cleaner main body 1 to move more rapidly. A speed-increasing flow channel 3503 communicating the inlet 3501 and the outlet 3502 of the water flow speed increaser 35 is arranged in the water flow speed increaser 35, and the flow area of the speed-increasing flow channel 3503 is gradually reduced along the direction from the inlet 3501 to the outlet 3502 of the water flow speed increaser 35 so as to increase the flow speed of the water flow passing through the speed-increasing flow channel 3503; the water flow speed increaser 35 can comprise a speed increasing pipe 351 and a speed increasing inner core 352 arranged in the speed increasing pipe 351, openings at two ends of the speed increasing pipe 351 are respectively an inlet 3501 and an outlet 3502 of the water flow speed increaser 35, the outer diameter of the speed increasing inner core 352 is gradually enlarged along the direction from the inlet 3501 to the outlet 3502 of the water flow speed increaser 35, a speed increasing flow channel 3503 is formed between the outer wall of the speed increasing inner core 352 and the inner wall of the speed increasing pipe 351, and the inlet 3501 of the water flow speed increaser 35 can be connected with the water jet 312 in a threaded connection mode.

In the first embodiment of the present invention, the cleaner body 1 is provided with a water passing chamber 10, and a sewage inlet 111 and a clean water outlet 121 which are communicated with the water passing chamber 10; the filter mechanism 2 comprises a filter screen 21 arranged in the water passing chamber 10 of the cleaner body 1, and the filter screen 21 divides the water passing chamber 10 into a sewage chamber 101 communicated with a sewage inlet 111 and a clean water chamber 102 communicated with a clean water outlet 121; when the cleaner body 1 moves on the water surface, the water flow on the water surface enters the water passing chamber 10 from the sewage inlet 111 and then flows out from the clean water outlet 121, and the dirt contained in the water flow passing through the water passing chamber 10 is intercepted in the sewage chamber 101 by the filter screen 21, so that the dirt floating on the water surface is cleaned.

In the first embodiment of the present invention, the number of the clean water outlets 121 may be two, and the two clean water outlets 121 are arranged oppositely; the number of the sewage inlets 111 can be two, and the two sewage inlets 111 are arranged oppositely; wherein one clean water outlet 121 of the two clean water outlets 121 and one sewage inlet 111 of the two sewage inlets 111 are positioned at one side of the cleaner body 1, and the other clean water outlet 121 of the two clean water outlets 121 and the other sewage inlet 111 of the two sewage inlets 111 are positioned at the other side of the cleaner body 121; the water-spraying type hydraulic driving mechanism 3 is installed in the clean water chamber 102 of the cleaner body 1, and the two water-spraying ports 312 of the water-spraying seat 31 of the water-spraying type hydraulic driving mechanism 3 are used for respectively spraying water flow to the two clean water outlets 121; when the water-jet type hydraulic driving mechanism 3 jets water flow to the clean water outlet 121, the jetted water flow drives the water flow in the water passing chamber 10 to flow out from the clean water port 121, so that the water flow in the water passing chamber 10 can flow out quickly, and the cleaning efficiency of the water surface cleaner of the invention can be improved. The two sewage inlets 111 are oppositely arranged, so that when the water-jet type hydraulic driving mechanism 3 drives the cleaner main body 1 to move forwards, the water flow can enter the water passing cavity 10 from one sewage inlet 111 of the two sewage inlets 111, and when the water-jet type hydraulic driving mechanism 3 drives the cleaner main body 1 to move backwards, the water flow can enter the water passing cavity 10 from the other sewage inlet 111 of the two sewage inlets 111; therefore, the present invention is advantageous in improving the cleaning efficiency by providing two opposite sewage inlets 111. The sewage chamber 101 is matched with a one-way valve plate 112 for opening and closing the sewage inlet 111, the one-way valve plate 112 is arranged in the sewage chamber 101 in a swinging mode, and the one-way valve plate 112 movably abuts against the inner peripheral edge of the sewage inlet 111; according to the invention, the one-way valve plate 112 is arranged, so that water flow in the sewage chamber 101 can be prevented from flowing out from the sewage inlet 111, and further, dirt intercepted in the sewage chamber 101 is prevented from flowing back to the water surface from the sewage inlet 111, and thus the cleaning effect is ensured.

In the first embodiment of the present invention, the water inlet 311 of the water spraying seat 31 can be disposed at the bottom of the cleaner body 1, so as to prevent the water flow entering the water spraying seat 31 from affecting the movement of the cleaner body 1.

In the first embodiment of the present invention, the cleaner body 1 includes an upper cover 11 with an open lower side and a lower cover 12 with an open upper side; the upper cover 11 and the lower cover 12 are connected to form the water passing cavity 10, and the filter screen 21 is clamped between the upper cover 11 and the lower cover 12 to divide the water passing cavity 10 into a sewage chamber 101 and a clean water chamber 102; the sewage inlet 111 is arranged on the upper cover 11, and the clean water outlet 121 is arranged on the lower cover 12, so that the clean water outlet 121 is lower than the sewage inlet 111. Wherein the upper cover 11 and the lower cover 12 are detachably connected to facilitate cleaning of dirt intercepted in the sewage chamber 101, and facilitate cleaning or replacement of the filter screen 21; the upper cover 11 and the lower cover 12 can be detachably connected through at least two fasteners 13, and the fasteners 13 are respectively fastened with the upper cover 11 and the lower cover 12, so that the upper cover 11 and the lower cover 12 can be conveniently disassembled and assembled.

In the first embodiment of the present invention, the cleaner body 1 may be matched with a rolling brush 15 corresponding to the sewage inlet 111, the rolling brush 15 is opposite to the sewage inlet 111 corresponding to the rolling brush 15, and the rolling brush 15 is located outside the sewage inlet 111; the water-spraying hydraulic driving mechanism 3 drives the rolling brush 15 to rotate, and when the rolling brush 15 rotates, dirt floating on the water surface can be conveyed to the front of the sewage inlet 111, so that the dirt floating on the water surface can be conveyed into the sewage chamber 101; the water-spraying type hydraulic driving mechanism 3 can be in transmission connection with the rolling brush 15 through a gear transmission mechanism and a belt transmission mechanism, and further drives the rolling brush 15 to rotate. The roll brush 15 may be rotatably coupled to the lower cover 12 of the cleaner body 1.

In the first embodiment of the invention, the cleaner body 1 is provided with a floating body 16 used for floating the cleaner body 1 on the water surface, and the floating body 16 is of a hollow structure and can drive the cleaner body 1 to float on the water surface; specifically, the floating bodies 16 may be provided on the lower cover 12 of the cleaner body 1, and the number of the floating bodies 16 may be four to ensure that the cleaner body 1 can float on the water surface smoothly.

Example two:

as shown in fig. 11 to fig. 15, the main difference between the second embodiment of the present invention and the first embodiment of the present invention is: the floating body 16 of the first embodiment is provided to the lower cover 12 of the cleaner body 1, and the floating body 16 of the second embodiment is provided to the upper cover 11 of the cleaner body 1. In the second embodiment of the present invention, the switching impeller 32 can drive the switching cam 31 to rotate through the gear transmission mechanism.

Example three:

as shown in fig. 16 to 25, in the third embodiment of the present invention, the driving mechanism is a hydraulic driving mechanism, and the cleaner body 1 is equipped with the driving wheel 4 with a rotating blade 401, and the hydraulic driving mechanism is a rotary hydraulic driving mechanism 3' to drive the driving wheel 4 to rotate by the flowing water flow, so that the driving wheel 4 acts on the pool water flow to drive the cleaner body 1 to move.

In the third embodiment of the present invention, the rotary hydraulic driving mechanism 3 includes an impeller seat 31 'and a power impeller 32'; wherein the impeller seat 31' is installed on the cleaner body 1, the impeller seat 31' has a water inlet 311' and a water outlet 312' communicated with the inner cavity thereof, the power impeller 32' is rotatably installed in the inner cavity of the impeller seat 31', and the power impeller 32' is in transmission connection with the driving wheel 4 to drive the driving wheel 4 to rotate.

In the third embodiment of the present invention, the power impeller 32 'can be in transmission connection with the driving wheel 4 through the timing reversing device 33', so that the cleaner body 1 can change the direction, and further, the present invention can clean up dirt floating on the water surface as much as possible.

In the third embodiment of the present invention, the number of the driving wheels 4 is two, and the two driving wheels 4 are respectively rotatably disposed at two sides of the cleaner body 1; the timing reversing device 33' is provided with a transmission shaft 331' which alternately performs positive rotation and negative rotation, and two ends of the transmission shaft 331' are respectively in transmission connection with the two driving wheels 4; the two ends of the transmission shaft 331' are divided into a first end and a second end, and the two driving wheels 4 are divided into a first driving wheel 41 and a second driving wheel 42; wherein, the first end of the transmission shaft 331' is connected with the first driving wheel 41 in a transmission manner, the first driving wheel 41 and the transmission shaft 331' are synchronously rotated, and the second end of the transmission shaft 331' is connected with the second driving wheel 42 through the one-way ratchet device 5. When the transmission shaft 331' of the timing reversing device 33' rotates forwards, the one-way ratchet device 5 is in a locked state, and the forward rotation of the transmission shaft 331' can drive the first driving wheel 41 and the second driving wheel 42 to rotate synchronously, so that the cleaner main body 1 moves; when the transmission shaft 331' of the timing reversing device 33' rotates reversely, the one-way ratchet device 5 is in an unlocked state at this time, and the reverse rotation of the transmission shaft 331' only drives the first driving wheel 41 to rotate synchronously, so that a rotation speed difference exists between the first driving wheel 41 and the second driving wheel 42, and the cleaner body 1 automatically changes direction; therefore, the cleaner main body 1 can change the direction by arranging the timing reversing device 33' and the one-way ratchet device 5, so that the cleaner main body can clean dirt floating on the water surface as far as possible.

In the third embodiment of the present invention, the timing reversing device 33' includes a driving gear 332', a driven gear 333', a reversing cam 334', an idler gear 335', a reversing swinging member 336' and a transmission gear 337 '; the driving gear 332', the driven gear 333', the reversing cam 334' and the transmission gear 337' are rotatably engaged with the cleaner body 1, the power impeller 32' drives the driving gear 332' and the reversing cam 334' to rotate, the driving gear 332' is engaged with the driven gear 333', the reversing cam 334' is provided with a reversing cam groove 3341' on the end surface, the transmission gear 337' drives the driving wheel 4 to rotate, and the transmission gear 337' is coaxially connected with the transmission shaft 331' to drive the driving wheel 4 to rotate through the transmission shaft 331 '; the reversing swinging piece 336 'is in swinging fit with the cleaner body 1, and the reversing swinging piece 336' is in sliding connection with the reversing cam groove 3311; the idler gear 335 'is rotatably mounted to the reversing swinging member 336' and the idler gear 335 'is in meshing engagement with the drive gear 337'; when the reversing cam 334' rotates, the reversing swinging piece 336' can circularly slide along the reversing cam groove 3341' of the reversing cam 334' to enable the reversing cam 334' to drive the reversing swinging piece 336' to reciprocate, and the reversing swinging piece 336' reciprocates to drive the idle wheel 335' to reciprocate, so that the idle wheel 335' is alternately meshed with the driving gear 332' and the driven gear 333', the transmission gear 337' is controlled to alternately rotate forwards and backwards, and the transmission shaft 331' alternately rotates forwards and backwards.

In the third embodiment of the present invention, the timing reversing device 33' may be installed outside the impeller seat 31', so as to prevent water entering the impeller seat 31' from interfering with the timing reversing device 33', so that the timing reversing device 33' may operate smoothly. The driving gear 332', the driven gear 333', the reversing cam 334' and the transmission gear 337' can be rotatably mounted on a fixed bracket 338', the driving gear 332', the driven gear 333' and the transmission gear 337' are located on the same side of the fixed bracket 338', and the reversing cam 334' is located on the other side of the fixed bracket 338 '; the fixed bracket 338' is provided with an arc-shaped guide hole 3381', the reversing swinging piece 336' can rotatably and slidably pass through the arc-shaped guide hole 3381' to enable the reversing swinging piece 336' to swing, one end of the reversing swinging piece 336' is in sliding connection with the reversing cam groove 3341', and the other end of the reversing cam groove 3341' is rotatably connected with the idle wheel 335 '; the fixing bracket 338 'may fix the timing reversal device 33' to the outside of the impeller seat 31 'by being screwed to the outside of the impeller seat 31'. The axial center of the power impeller 32' is connected with a power shaft 321', one end of the power shaft 321' rotatably penetrates out of the impeller seat 31', the power shaft 321' is in transmission connection with a driving gear 332' and a reversing cam 334' to drive the driving gear 332' and the reversing cam 334' to rotate, wherein the power shaft 321' is in transmission connection with the driving gear 332' through a gear transmission structure, and the power shaft 321' is in transmission connection with the reversing cam 334' through a worm and gear transmission structure.

In the third embodiment of the present invention, the one-way ratchet device 5 includes an outer ratchet 51 and an outer stopper 52; the outer ratchet wheel 51 is in transmission connection with the second end of the transmission shaft 331', the outer ratchet wheel 51 and the transmission shaft 331' are synchronously rotated, the outer ratchet wheel 51 and the second end of the transmission shaft 331' can be in transmission connection in a gear transmission mode, and a plurality of outer ratchets 511 are arranged on the periphery of the outer ratchet wheel 51; the outer stopper 52 is swingably mounted on the second drive wheel 42, the second drive wheel 42 is coaxially disposed with the outer ratchet wheel 51, and the outer stopper 52 is in contact with the outer ratchet teeth 511 of the outer ratchet wheel 51 and allows only the outer ratchet wheel 1 to rotate in one direction with respect to the second drive wheel 42. When the transmission shaft 331' of the timing reversing device 33' rotates forward, the end of the outer stopper 52 is clamped by the outer ratchet 511 of the outer ratchet wheel 51 to make the one-way ratchet wheel device 5 in a locked state, and at this time, the forward rotation of the transmission shaft 331' can drive the outer ratchet wheel 51 to rotate, and the outer ratchet wheel 51 drives the second driving wheel 42 to rotate synchronously; when the transmission shaft 331' of the timing reversing device 33' rotates reversely, the transmission shaft 331' drives the outer ratchet wheel 51 to rotate, the one-way ratchet device 5 is in the unlocked state, and the outer stop 52 slides over the outer ratchet 511 of the outer ratchet wheel 51 when the outer ratchet wheel 51 rotates, so that the outer ratchet wheel 51 cannot drive the second driving wheel 42 to rotate.

The one-way ratchet device 5 further comprises an inner ratchet wheel 53 and an inner stop 54; the inner ratchet wheel 53 is coaxially connected with the second driving wheel 42, the inner ratchet wheel 53 and the second walking wheel 53 are synchronously rotated, and a plurality of inner ratchets 531 are arranged on the inner periphery of the inner ratchet wheel 53; the inner stop piece 54 is in transmission connection with the second end of the transmission shaft 331 'and the inner stop piece 54 is arranged to rotate synchronously with the transmission shaft 331', the inner stop piece 54 can be coaxially connected with the outer ratchet wheel 51, the outer wall of the inner stop piece 54 is provided with at least one elastic pawl 541, the elastic pawl 541 of the inner stop piece 54 is in contact with the inner ratchet 531 of the inner ratchet wheel 53 and only allows the inner ratchet wheel 53 to rotate unidirectionally relative to the inner stop piece 54. When the transmission shaft 331' of the timing reversing device 33' rotates forward, the elastic pawl 541 of the inner stop piece 54 blocks the inner ratchet 531 of the inner ratchet wheel 53 at this time, so that the one-way ratchet wheel device 5 is in a locked state, and the forward rotation of the transmission shaft 331' can drive the inner stop piece 54 to rotate, and the inner stop piece 54 drives the second driving wheel 42 to synchronously rotate through the inner ratchet wheel 53; when the transmission shaft 331' of the timing reversing device 33' rotates reversely, the transmission shaft 331' drives the inner stop member 54 to rotate, the one-way ratchet device 5 is in the unlocked state, and the elastic pawl 541 of the inner stop member 54 slides over the inner ratchet 531 of the inner ratchet wheel 53 when the inner stop member 54 rotates, so that the inner ratchet wheel 53 cannot drive the inner ratchet wheel 53 and the second driving wheel 42 to rotate.

It should be noted that the outer ratchet 51 and the outer stop 52 of the unidirectional ratchet device 5 form a unidirectional ratchet mechanism, and the inner ratchet 53 and the inner stop 53 of the unidirectional ratchet device 5 form another unidirectional ratchet mechanism, for the present invention, only one of the two unidirectional ratchet mechanisms is provided to change the direction of the cleaner body 1, if both of the two unidirectional ratchet mechanisms are provided, the unidirectional limiting functions of the two unidirectional ratchet mechanisms are mutually overlapped, so as to ensure that the transmission shaft 331 'does not drive the second driving wheel 42 to rotate when the transmission shaft 331' rotates reversely.

It should be noted that, in the third embodiment of the present invention, the two driving wheels 4 and the transmission shaft 341 may be synchronously rotated, so that when the transmission shaft 341 rotates forward and backward alternately, the two driving wheels 4 rotate forward and backward alternately, and further the cleaner main body 1 is driven to move forward and backward alternately, so that the cleaner main body 14 may also change directions, and further the present invention may clean up dirt floating on the water surface as much as possible.

In the third embodiment of the present invention, the cleaner body 1 is provided with a water passing chamber 10, a sewage inlet 111 and a clean water outlet 121; the filter mechanism 2 comprises a filter screen 21 arranged in the water passing chamber 10 of the cleaner body 1, and the filter screen 21 divides the water passing chamber 10 into a sewage chamber 101 communicated with a sewage inlet 111 and a clean water chamber 102 communicated with a clean water outlet 121; the rotary hydraulic driving mechanism 3' is arranged in the clean water chamber 101 of the cleaner body 1, and the clean water outlet 121 is connected with the water outlet 312' of the impeller seat 31' of the rotary hydraulic driving mechanism 3' so that the clean water outlet 121 is communicated with the clean water chamber 102 through the inner cavity of the impeller seat 31 '; the clean water outlet 121 may be connected to a water pump inlet through a hose so that the water pump can suck the water flow in the water passing chamber 10 of the cleaner body 1 and make the water flow in the water passing chamber 10 to drive the power impeller 32' to rotate. When the water pump sucks water flow in the water passing chamber 10 of the cleaner body 1, water flow on the water surface enters the water passing chamber 10 from the sewage inlet 111 and then flows out from the clean water outlet 121, and dirt contained in the water flow passing through the water passing chamber 10 is intercepted in the sewage chamber 101 by the filter screen 21, so that the dirt floating on the water surface is cleaned. The fresh water outlet 121 may be formed at the bottom of the cleaner body 1 so as to prevent the flow of water pumped by the water pump from interfering with the movement of the cleaner body 1.

In the third embodiment of the present invention, the number of the two sewage inlets 111 may be two, the two sewage inlets 111 are oppositely disposed, and the sewage inlets 111 are located at the side of the cleaner main body 1; thus, when the cleaner body 1 moves forward and backward, water flow on the water surface can enter the water passing cavity 10 from one sewage inlet 111 of the two sewage inlets 111, and therefore, the cleaning efficiency is improved by arranging the two opposite sewage inlets 111.

In the third embodiment of the present invention, the sewage chamber 101 is matched with a check valve plate 112 for opening and closing the sewage inlet 111, the check valve plate 112 is swingably installed in the sewage chamber 101, and the check valve plate 112 movably abuts against the inner peripheral edge of the sewage inlet 111; according to the invention, the one-way valve plate 112 is arranged, so that water flow in the sewage chamber 101 can be prevented from flowing out from the sewage inlet 111, and further, dirt intercepted in the sewage chamber 101 is prevented from flowing back to the water surface from the sewage inlet 111, and thus the cleaning effect is ensured.

In the third embodiment of the present invention, the cleaner body 1 includes an upper cover 11 having an open lower side and a lower cover 12 having an open upper side; the upper cover 11 and the lower cover 12 are connected to form the water passing cavity 10, and the filter screen 21 is clamped between the upper cover 11 and the lower cover 12 to divide the water passing cavity 10 into a sewage chamber 101 and a clean water chamber 102; the sewage inlet 111 is arranged on the upper cover 11, and the clean water outlet 121 is arranged on the lower cover 12, so that the clean water outlet 121 is lower than the sewage inlet 111. Wherein the upper cover 11 and the lower cover 12 are detachably connected to facilitate cleaning of dirt intercepted in the sewage chamber 101, and facilitate cleaning or replacement of the filter screen 21; the upper cover 11 and the lower cover 12 can be detachably connected through at least two connecting pieces 13 ', the connecting pieces 13 ' are rotatably connected with the lower cover 12, and the connecting pieces 13 ' are rotatably buckled with the connecting parts 112 of the upper cover 11, so that the upper cover 11 and the lower cover 12 can be conveniently disassembled and assembled.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A water surface cleaner, characterized by: comprises a floatable cleaner main body, a driving mechanism and a filtering mechanism which are arranged on the cleaner main body;

the driving mechanism is used for driving the cleaner main body to move on the water surface; the filtering mechanism is used for filtering the water flow.

2. A water surface cleaner as defined in claim 1, wherein: the driving mechanism is a hydraulic driving mechanism.

3. A water surface cleaner as defined in claim 2, wherein: the hydraulic driving mechanism is a water-spraying hydraulic driving mechanism.

4. A water surface cleaner as defined in claim 3, wherein: the water-spraying type hydraulic driving mechanism comprises a water-spraying seat and a switching impeller, wherein the water-spraying seat and the switching impeller are arranged on the cleaner main body;

the water spraying seat is internally provided with a water distribution cavity and an impeller cavity, the water distribution cavity is communicated with the impeller cavity through a water passing port, the water spraying seat is also provided with a water inlet interface communicated with the impeller cavity and two water spraying ports which are oppositely arranged and communicated with the water distribution cavity, the water distribution cavity is matched with a switching piece, and the switching piece is used for controlling the water inlet interface to be selectively communicated with one of the two water spraying ports; the switching impeller is rotatably matched in the impeller cavity and is in transmission fit with the switching piece through the timing switching device.

5. The water surface cleaner of claim 4, wherein: the water-spraying type hydraulic driving mechanism further comprises two water flow speed increasers, inlets of the two water flow speed increasers are respectively connected with two water spraying ports of the water spraying seat, and outlets of the two water flow speed increasers are reversely arranged.

6. The water surface cleaner of claim 5 wherein: the water flow speed increaser is internally provided with a speed increasing flow channel for communicating the inlet and the outlet of the water flow speed increaser, and the flow area of the speed increasing flow channel is gradually reduced along the direction from the inlet to the outlet of the water flow speed increaser.

7. The water surface cleaner of claim 4, wherein: two water diversion ports communicated with the water passing port are arranged in the water diversion cavity, and the two water diversion ports are respectively communicated with the two water spraying ports; the switching piece is arranged in the water distribution cavity in a swinging manner, and movably plugs the two water distribution ports; the timing switching device drives the switching piece to swing in a reciprocating mode.

8. The water surface cleaner of claim 7 wherein: the timing switching device comprises a switching cam, a switching slide block and a switching rod;

the switching cam is rotatably arranged on the water spraying seat and is driven to rotate by the switching impeller, and the end face of the switching cam is provided with a switching cam groove;

the switching slide block is arranged on the water spraying seat in a translation way, the switching slide block is provided with a rotatable guide slide block, the guide slide block is in sliding connection with the switching cam groove, and the switching slide block is provided with a swinging groove;

the switching rod is connected with the switching piece, and the free end of the switching rod is inserted into the swing groove of the switching slide block.

9. The water surface cleaner of claim 8, wherein: the switching cam, the switching slide block and the switching rod of the timing switching device are all installed on the outer side of the water spraying seat, the switching piece is connected with the switching rod through a connecting shaft which penetrates through the side wall of the water spraying seat in a rotatable mode, the axis of the switching impeller is connected with an impeller shaft, the impeller shaft penetrates through the side wall of the water spraying seat in a rotatable mode, and the impeller shaft and the switching cam are connected in a synchronous rotating mode.

10. The water surface cleaner of claim 4, wherein: the cleaner main body is provided with a water passing cavity, and a sewage inlet and a clean water outlet which are communicated with the water passing cavity;

the number of the clean water outlets is two, and the two clean water outlets are arranged oppositely; the number of the sewage inlets is two, and the two sewage inlets are oppositely arranged; one of the two clean water outlets and one of the two sewage inlets are positioned at one side of the cleaner body, and the other of the two clean water outlets and the other of the two sewage inlets are positioned at the other side of the cleaner body;

the filter mechanism comprises a filter screen arranged in a water passing cavity of the cleaner main body, and the filter screen divides the water passing cavity into a sewage cavity communicated with two sewage inlets and a clear water cavity communicated with two clear water outlets;

the water-spraying type hydraulic driving mechanism is arranged in a clean water chamber of the cleaner main body, and two water spraying ports of a water spraying seat of the water-spraying type hydraulic driving mechanism are used for spraying water flow to two clean water outlets respectively.

11. A water surface cleaner as defined in claim 3, wherein: the cleaner main body is provided with a water passing cavity, and a sewage inlet and a clean water outlet which are communicated with the water passing cavity;

the filtering mechanism comprises a filter screen arranged in a water passing cavity of the cleaner main body, and the filter screen divides the water passing cavity into a sewage cavity communicated with the sewage inlet and a clear water cavity communicated with the clear water outlet.

12. A water surface cleaner as defined in claim 10 or 11, wherein: the cleaner main body is matched with a rolling brush which is arranged corresponding to the sewage inlet, the rolling brush is opposite to the sewage inlet which is arranged corresponding to the rolling brush, and the rolling brush is positioned outside the sewage inlet; the water-spraying type hydraulic driving mechanism drives the rolling brush to rotate.

13. A water surface cleaner as defined in claim 2, wherein: the hydraulic driving mechanism is a rotary hydraulic driving mechanism; the cleaner main body is matched with a driving wheel with a rotating blade, and a rotary hydraulic driving mechanism drives the driving wheel to rotate.

14. The water surface cleaner of claim 13, wherein: the rotary hydraulic driving mechanism comprises an impeller seat and a power impeller;

the power impeller is rotatably arranged in the inner cavity of the impeller seat, and the power impeller is in transmission connection with the driving wheel to drive the driving wheel to rotate.

15. The water surface cleaner of claim 14, wherein: the power impeller is in transmission connection with the driving wheel through the timing reversing device.

16. The water surface cleaner of claim 15 wherein: the number of the driving wheels is two, and the two driving wheels can be respectively and rotatably arranged on two sides of the cleaner main body;

17. The water surface cleaner of claim 16 wherein: the two driving wheels and the transmission shaft are arranged in a synchronous rotating mode.

18. The water surface cleaner of claim 16 wherein: the two ends of the transmission shaft are divided into a first end and a second end, and the two driving wheels are divided into a first driving wheel and a second driving wheel;

the first end of the transmission shaft is in transmission connection with the first driving wheel, the first driving wheel and the transmission shaft are arranged in a synchronous rotating mode, and the second end of the transmission shaft is connected with the second driving wheel through the one-way ratchet wheel device.

19. The water surface cleaner of claim 18 wherein: the one-way ratchet device comprises an outer ratchet and an outer stop piece;

the outer ratchet wheel is in transmission connection with the second end of the transmission shaft and is synchronously rotated with the transmission shaft, and a plurality of outer ratchets are arranged on the periphery of the outer ratchet wheel; the outer stop piece is arranged on a second driving wheel in a swinging mode, the second driving wheel and the outer ratchet wheel are coaxially arranged, and the outer stop piece is in contact with the outer ratchet of the outer ratchet wheel and only allows the outer ratchet wheel to rotate in one direction relative to the second driving wheel.

20. A surface cleaner as defined in claim 18 or 19 wherein: the one-way ratchet device comprises an inner ratchet and an inner stop piece;

the inner ratchet wheel is coaxially connected with the second driving wheel and synchronously rotates with the second driving wheel, and a plurality of inner ratchets are arranged on the inner periphery of the inner ratchet wheel;

the inner stop piece is in transmission connection with the second end of the transmission shaft and is arranged in a manner of synchronous rotation with the transmission shaft, at least one elastic pawl is arranged on the outer wall of the inner stop piece, and the elastic pawl of the inner stop piece is in contact with the inner ratchet of the inner ratchet wheel and only allows the inner ratchet wheel to rotate in one direction relative to the inner stop piece.

21. The water surface cleaner of claim 15 wherein: the timing reversing device comprises a driving gear, a driven gear, a reversing cam, an idler wheel, a reversing swinging piece and a transmission gear;

the driving gear, the driven gear, the reversing cam and the transmission gear are rotatably matched with the cleaner main body, the power impeller drives the driving gear and the reversing cam to rotate, the driving gear is meshed with the driven gear, the end face of the reversing cam is provided with a reversing cam groove, and the transmission gear is connected with the transmission shaft; the reversing swinging piece is matched with the cleaner body in a swinging mode and is in sliding connection with the reversing cam groove; the idler wheel is rotatably arranged on the reversing swinging piece and is meshed with the transmission gear;

when the reversing cam rotates, the reversing swinging piece is driven to swing in a reciprocating mode to drive the idler wheel to swing in a reciprocating mode, so that the idler wheel is meshed with the driving gear and the driven gear alternately, and the transmission gear is controlled to rotate forwards and reversely alternately.

22. The water surface cleaner of claim 17 wherein: the cleaner main body is provided with a water passing chamber, a clear water outlet and two sewage inlets, the two sewage inlets are oppositely arranged, and the sewage inlets are positioned on the side of the cleaner main body;

the filter mechanism comprises a filter screen arranged in a water passing cavity of the cleaner main body, and the filter screen divides the water passing cavity into a sewage cavity communicated with a sewage inlet and a clear water cavity communicated with a clear water outlet;

the rotary hydraulic driving mechanism is arranged in a clean water chamber of the cleaner main body, and a clean water outlet is connected with a water outlet of an impeller seat of the rotary hydraulic driving mechanism so that the clean water outlet is communicated with the clean water chamber through an inner cavity of the impeller seat.

23. The water surface cleaner of claim 14, wherein: the cleaner main body is provided with a water passing chamber, a sewage inlet and a clean water outlet;

24. A surface cleaner as defined in claim 22 or 23 wherein: the clear water outlet is positioned at the bottom of the cleaner main body.

25. A surface cleaner as defined in claim 10 or 11 or 24 or 25 wherein: the cleaner body comprises an upper cover with an opening at the lower side and a lower cover with an opening at the upper side; the upper cover and the lower cover are detachably connected, and the filter screen is clamped between the upper cover and the lower cover; the sewage inlet is arranged on the upper cover, and the clear water outlet is arranged on the lower cover.

26. A surface cleaner as defined in claim 10 or 11 or 24 or 25 wherein: the sewage cavity cooperates with the one-way valve plate used for opening and closing the sewage inlet, the one-way valve plate can be arranged in the sewage cavity in a swinging mode, and the one-way valve plate is movably abutted to the inner peripheral edge of the sewage inlet.