Water surface cleaner

Abstract

This invention discloses a water surface cleaner, comprising a floating cleaner body, a drive mechanism, and a filter mechanism installed on the cleaner body; the drive mechanism is used to drive the cleaner body to move on the water surface; the filter mechanism is used to filter the water flow. The water surface cleaner of this invention can clean floating debris on the water surface, effectively replacing manual retrieval operations and improving cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment, and in particular to a water surface cleaner. Background Technology

[0002] Floating debris on the water surface poses a serious threat to water quality and aesthetics, necessitating its removal. However, current methods typically involve manual dredging, which is inefficient and poses significant risks to cleaning personnel. Summary of the Invention

[0003] The purpose of this invention is to provide a water surface cleaner that can clean up floating dirt on the water surface, effectively replacing manual retrieval operations and improving cleaning efficiency.

[0004] To achieve the above objectives, the solution of the present invention is:

[0005] A water surface cleaner includes a floating cleaner body, a drive mechanism and a filter mechanism mounted on the cleaner body; the drive mechanism is used to drive the cleaner body to move on the water surface; the filter mechanism is used to filter the water flow.

[0006] The driving mechanism is a hydraulic driving mechanism.

[0007] The hydraulic drive mechanism is a water jet type hydraulic drive mechanism.

[0008] The water-spraying hydraulic drive mechanism includes a water spray base and a switching impeller installed on the main body of the cleaner. The water spray base has a water distribution chamber and an impeller chamber. The water distribution chamber is connected to the impeller chamber through a water inlet. The water spray base also has a water inlet connected to the impeller chamber and two oppositely arranged water spray nozzles connected to the water distribution chamber. A switching component is fitted in the water distribution chamber. The switching component is used to control the water inlet to selectively connect to one of the two water spray nozzles. The switching impeller is rotatably fitted in the impeller chamber. The switching impeller is driven by the switching component through a timed switching device.

[0009] The water jet type hydraulic drive mechanism also includes two water flow speed increasers. The inlets of the two water flow speed increasers are respectively connected to the two water jet nozzles of the water jet base, and the outlets of the two water flow speed increasers are set in opposite directions.

[0010] The water flow speed increaser is provided with a speed increase channel connecting its inlet and outlet, and the flow area of ​​the speed increase channel is gradually reduced along the direction from the inlet to the outlet of the water flow speed increaser.

[0011] The water distribution chamber is provided with two water distribution ports that are connected to the water inlet, and the two water distribution ports are respectively connected to two water spray nozzles; the switching component is oscillatingly installed in the water distribution chamber, and the switching component can movably block the two water distribution ports; the timed switching device drives the switching component to oscillate back and forth.

[0012] The timing switching device includes a switching cam, a switching slider, and a switching rod; the switching cam is rotatably mounted on the spray base and is driven to rotate by a switching impeller, and the end face of the switching cam is provided with a switching cam groove; the switching slider is translatably mounted on the spray base, and the switching slider is provided with a rotatable guide slider, which slides in contact with the switching cam groove, and the switching slider is provided with a swing groove; the switching rod is connected to the switching component, and the free end of the switching rod is inserted into the swing groove of the switching slider.

[0013] The switching cam, switching slider, and switching rod of the timing switching device are all installed on the outside of the spray seat. The switching component is connected to the switching rod through a rotatable connecting shaft that passes through the side wall of the spray seat. The axis of the switching impeller is connected to an impeller shaft, which rotatably passes through the side wall of the spray seat and is synchronously connected to the switching cam.

[0014] The cleaner body has a water passage chamber and a sewage inlet and a clean water outlet communicating with the water passage chamber; there are two clean water outlets, which are arranged opposite each other; there are two sewage inlets, which are arranged opposite each other; one of the clean water outlets and one of the sewage inlets is located on one side of the cleaner body, and the other clean water outlet and the other sewage inlet are located on the other side of the cleaner body; the filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber communicating with the two sewage inlets and a clean water chamber communicating with the two clean water outlets; the water-spraying hydraulic drive mechanism is installed in the clean water chamber of the cleaner body, and the two spray nozzles of the water-spraying hydraulic drive mechanism are used to spray water flow to the two clean water outlets respectively.

[0015] The cleaner body is provided with a water passage chamber and a sewage inlet and a clean water outlet communicating with the water passage chamber; the filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber communicating with the sewage inlet and a clean water chamber communicating with the clean water outlet.

[0016] The main body of the cleaner is equipped with a roller brush that is positioned opposite the sewage inlet. The roller brush is positioned outside the sewage inlet and the corresponding sewage inlet is opposite to it. The water-spraying hydraulic drive mechanism drives the roller brush to rotate.

[0017] The hydraulic drive mechanism is a rotary hydraulic drive mechanism; the main body of the cleaner is equipped with a drive wheel with rotating blades, and the rotary hydraulic drive mechanism drives the drive wheel to rotate.

[0018] The rotary hydraulic drive mechanism includes an impeller seat and a power impeller; the impeller seat is installed on the cleaner body and has an inlet and an outlet communicating with its inner cavity; the power impeller is rotatably installed in the inner cavity of the impeller seat and is connected to the drive wheel to drive the drive wheel to rotate.

[0019] The power impeller is connected to the drive wheel via a timed reversing device.

[0020] The number of drive wheels is two, and the two drive wheels are rotatable and located on both sides of the main body of the cleaner;

[0021] The timing reversing device has a drive shaft that alternately rotates forward and reverse, with its two ends connected to two drive wheels respectively.

[0022] The two drive wheels are arranged to rotate synchronously with the transmission shaft.

[0023] The transmission shaft is divided into a first end and a second end at both ends, and the two drive wheels are divided into a first drive wheel and a second drive wheel. The first end of the transmission shaft is connected to the first drive wheel and the first drive wheel is arranged to rotate synchronously with the transmission shaft. The second end of the transmission shaft is connected to the second drive wheel through a one-way ratchet device.

[0024] The one-way ratchet device includes an outer ratchet and an outer stop; the outer ratchet is connected to the second end of the drive shaft and is arranged to rotate synchronously with the drive shaft, and the outer ratchet has a plurality of outer ratchet teeth on its outer circumference; the outer stop is oscillatingly mounted on the second drive wheel, the second drive wheel and the outer ratchet are coaxially arranged, the outer stop contacts the outer ratchet teeth of the outer ratchet and only allows the outer ratchet to rotate unidirectionally relative to the second drive wheel.

[0025] The one-way ratchet device includes an inner ratchet and an inner stop; the inner ratchet is coaxially connected to the second drive wheel and rotates synchronously with the second drive wheel, and the inner circumference of the inner ratchet is provided with a plurality of inner ratchet teeth; the inner stop is drivenly connected to the second end of the drive shaft and rotates synchronously with the drive shaft, and the outer wall of the inner stop is provided with at least one elastic pawl, the elastic pawl of the inner stop contacts the inner ratchet teeth of the inner ratchet and only allows the inner ratchet to rotate unidirectionally relative to the inner stop.

[0026] The timing reversing device includes a driving gear, a driven gear, a reversing cam, an idler gear, a reversing oscillating component, and a transmission gear. The driving gear, driven gear, reversing cam, and transmission gear are rotatably fitted to the cleaner body. A power impeller drives the driving gear and the reversing cam to rotate. The driving gear meshes with the driven gear. The end face of the reversing cam is provided with a reversing cam groove. The transmission gear is connected to the transmission shaft. The reversing oscillating component is oscillatingly fitted to the cleaner body and slides with the reversing cam groove. The idler gear is rotatably mounted on the reversing oscillating component and maintains meshing with the transmission gear. When the reversing cam rotates, it drives the reversing oscillating component to oscillate back and forth, which in turn drives the idler gear to oscillate back and forth, thereby causing the idler gear to alternately mesh with the driving gear and the driven gear, thus controlling the transmission gear to alternately rotate forward and reverse.

[0027] The cleaner body has a water passage chamber, a clean water outlet, and two sewage inlets. The two sewage inlets are arranged opposite each other and are located on the side of the cleaner body. The filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber that communicates with the sewage inlets and a clean water chamber that communicates with the clean water outlet. The rotary hydraulic drive mechanism is installed in the clean water chamber of the cleaner body. The clean water outlet is connected to the outlet of the impeller seat of the rotary hydraulic drive mechanism, so that the clean water outlet communicates with the clean water chamber through the inner cavity of the impeller seat.

[0028] The cleaner body has a water passage chamber, a sewage inlet, and a clean water outlet; the filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber communicating with the sewage inlet and a clean water chamber communicating with the clean water outlet; the rotary hydraulic drive mechanism is installed in the clean water chamber of the cleaner body, and the clean water outlet is connected to the outlet of the impeller seat of the rotary hydraulic drive mechanism so that the clean water outlet communicates with the clean water chamber through the inner cavity of the impeller seat.

[0029] The clean water outlet is located at the bottom of the cleaner body.

[0030] The cleaner body includes an upper cover with a bottom opening and a lower cover with a top opening; the upper cover and the lower cover are detachably connected, and a filter screen is sandwiched between the upper cover and the lower cover; the sewage inlet is located on the upper cover, and the clean water outlet is located on the lower cover.

[0031] The sewage chamber is equipped with a one-way valve for opening and closing the sewage inlet. The one-way valve is oscillatingly installed in the sewage chamber and moves against the inner periphery of the sewage inlet.

[0032] By adopting the above solution, the present invention has the following advantages:

[0033] 1. When the water surface cleaner of the present invention is in use, the main body of the cleaner floats on the water surface, the drive mechanism drives the main body of the cleaner to move on the water surface, and the filtration mechanism filters the water flow on the water surface to intercept and collect the dirt on the water surface, thereby cleaning the dirt floating on the water surface; thus, the water surface cleaner of the present invention can effectively replace manual retrieval operations and improve cleaning efficiency.

[0034] 2. The driving mechanism of the present invention is a water-driven mechanism. The water-driven mechanism drives the cleaner body to move on the water surface by the flow of water, so that the present invention does not need to consider waterproof treatment of electronic components, which helps to simplify the structure and cost of the present invention.

[0035] 3. The water surface cleaner of the present invention can move in different directions, thereby helping the water surface cleaner of the present invention to clean the dirt floating on the water surface. Attached Figure Description

[0036] Figure 1 This is an exploded view of the structure of Embodiment 1 of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0038] Figure 3 This is a combined sectional view of Embodiment 1 of the present invention;

[0039] Figure 4 This is a partial structure of Embodiment 1 of the present invention. Figure 1 ;

[0040] Figure 5 This is a partial structure of Embodiment 1 of the present invention. Figure 2 ;

[0041] Figure 6 This is a partial structure of Embodiment 1 of the present invention. Figure 3 ;

[0042] Figure 7 This is a partial cross-sectional view of Embodiment 1 of the present invention;

[0043] Figure 8 This is an exploded view of the timing switching device according to Embodiment 1 of the present invention;

[0044] Figure 9 This is a schematic diagram of the reversing cam according to Embodiment 1 of the present invention;

[0045] Figure 10 This is a partial structural diagram of the upper cover according to Embodiment 1 of the present invention;

[0046] Figure 11 This is an exploded view of the structure of Embodiment 2 of the present invention;

[0047] Figure 12 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0048] Figure 13 This is a combined sectional view of Embodiment 2 of the present invention;

[0049] Figure 14 This is a partial structural diagram of Embodiment 2 of the present invention;

[0050] Figure 15 This is a partial cross-sectional view of Embodiment 2 of the present invention;

[0051] Figure 16 This is an exploded view of the structure of Embodiment 3 of the present invention;

[0052] Figure 17 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0053] Figure 18 This is a combined sectional view of Embodiment 3 of the present invention;

[0054] Figure 19 This is a partial structure of Embodiment 3 of the present invention. Figure 1 ;

[0055] Figure 20 This is a partial structure of Embodiment 3 of the present invention. Figure 2 ;

[0056] Figure 21 This is a partial cross-sectional view of Embodiment 3 of the present invention. Figure 1 ;

[0057] Figure 22 This is a partial cross-sectional view of Embodiment 3 of the present invention. Figure 2 ;

[0058] Figure 23 This is a partial cross-sectional view of Embodiment 3 of the present invention. Figure 3 ;

[0059] Figure 24 This is a partial exploded view of the timing commutation device according to Embodiment 3 of the present invention;

[0060] Figure 25 This is an exploded view of the one-way ratchet device according to Embodiment 3 of the present invention;

[0061] Label Explanation:

[0062] The cleaner body consists of: a main body 1, a water passage chamber 10, a wastewater chamber 101, a clean water chamber 102, an upper cover 11, a wastewater inlet 111, a connecting part 112, a lower cover 12, a clean water outlet 121, a fastener 13, a connector 13', a one-way valve 14, a roller brush 15, and a float 16.

[0063] Filter mechanism 2, filter screen 21,

[0064] The water-jet hydraulic drive mechanism 3 includes: a water distribution chamber 301, an impeller chamber 302, a water inlet 303, a water distribution port 304, an elastic washer 305, a water spray base 31, a water inlet interface 311, a water spray nozzle 312, a switching impeller 32, an impeller shaft 321, a switching component 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 swing groove 3422, a switching rod 343, a mounting bracket 344, a mounting slide groove 3441, a cam cover 345, a water flow speed increaser 35, an inlet 3501, an outlet 3502, a speed-increasing flow channel 3503, a speed-increasing pipe 351, and a speed-increasing inner core 352.

[0065] Rotary hydraulic drive mechanism 3', impeller seat 31', inlet 311', 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', idler wheel 335', ​​reversing swing element 336', transmission gear 337', fixed bracket 338', arc-shaped guide hole 3381'.

[0066] Drive wheel 4, rotor blade 401, first drive wheel 41, second drive wheel 42.

[0067] One-way ratchet device 5, outer ratchet 51, outer ratchet tooth 511, outer stop 52, inner ratchet 53, inner ratchet tooth 531, inner stop 54, elastic pawl 541. Detailed Implementation

[0068] like Figures 1 to 25 As shown, the present invention discloses a water surface cleaner, which includes a floating cleaner body 1 and a filter mechanism 2 and a drive mechanism installed on the cleaner body 1; wherein the drive mechanism is used to drive the cleaner body 1 to move on the water surface; and the filter mechanism 2 is used to filter the water flow.

[0069] When the water surface cleaner of the present invention is in use, the cleaner body 1 floats on the water surface, the drive mechanism drives the cleaner body 1 to move on the water surface, and the filter mechanism 2 filters the water flow on the water surface to intercept and collect the dirt on the water surface, thereby cleaning the dirt floating on the water surface; in this way, the water surface cleaner of the present invention can effectively replace manual retrieval operations and improve cleaning efficiency.

[0070] In this invention, the driving mechanism is a hydraulic driving mechanism, which drives the cleaner body 1 to move on the water surface by the flow of water. The flow of water can be generated by a water pump. This invention drives the cleaner body 1 to move by a hydraulic driving mechanism, so that this invention does not need to consider waterproof treatment of electronic components, which helps to simplify the structure and cost of this invention.

[0071] It should be noted that the driving mechanism of the present invention can also be an electric driving mechanism, which uses electricity to drive the cleaner body 1 to move on the water surface, thereby cleaning the dirt floating on the water surface.

[0072] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0073] Example 1:

[0074] Cooperate Figures 1 to 10 As shown, in Embodiment 1 of the present invention, the driving mechanism is a hydraulic driving mechanism, specifically a water-spraying hydraulic driving mechanism 3, which drives the cleaner body 1 to move by spraying water.

[0075] In Embodiment 1 of the present invention, the water-spraying hydraulic drive mechanism 3 includes a water spray base 31 and a switching impeller 32 installed on the cleaner body 1; wherein the water spray base 31 is provided with a water distribution chamber 301 and an impeller chamber 302, the water distribution chamber 301 is connected to the impeller chamber 302 through a water inlet 303, the water spray base 31 is also provided with a water inlet 311 connected to the impeller chamber 302 and two oppositely arranged water spray nozzles 312 connected to the water distribution chamber 301, a switching element 33 is fitted in the water distribution chamber 301, the switching element 33 is used to control the water inlet 311 to selectively connect to one of the two water spray nozzles 312; the switching impeller 32 is rotatably fitted in the impeller chamber 302, and the switching impeller 32 is connected to the switching impeller 32 through a timed switching device 34. The switching component 33 is driven by the transmission mechanism to perform a switching action at regular intervals, so that the two spray nozzles 312 alternately connect with the water inlet interface 311. The water inlet interface 311 is used to introduce external water flow (water flow output by the water pump) into the spray base 31, so that the spray nozzles 312 of the spray base 31 spray water. The two spray nozzles 312 alternately connect with the water inlet interface 311, and the two spray nozzles 312 are arranged opposite to each other. In this way, the two spray nozzles 312 will alternately spray water, so that the water spray type hydraulic drive mechanism 3 drives the cleaner body 1 to move forward and backward alternately, so that the cleaner body 1 of the present invention can move in different directions, so that the water surface cleaner of the present invention can clean the dirt floating on the water surface as much as possible.

[0076] In Embodiment 1 of the present invention, the water distribution chamber 301 is provided with two water distribution ports 304 communicating with the water inlet 303, and the two water distribution ports 304 are respectively connected to two spray nozzles 32; the switching member 33 is oscillatingly installed in the water distribution chamber 301, and the switching member 33 movably blocks the two water distribution ports 304 to control the water inlet interface 311 to selectively connect to one of the two spray nozzles 312; the timing switching device 34 drives the switching member 33 to oscillate back and forth to control the two spray nozzles 312 to alternately connect to the water inlet interface 311. The water distribution ports 304 can be fitted with elastic washers 305 so that the switching member 33 can completely block the water distribution ports 304.

[0077] In Embodiment 1 of the present invention, the timing switching device 34 includes a switching cam 341, a switching slider 342, and a switching rod 343; the switching cam 341 is rotatably mounted on the water spray base 31 and is driven to rotate by the switching impeller 32, and the end face of the switching cam 341 is provided with a switching cam groove 3411; while the switching slider 342 is translatably mounted on the water spray base 31, the switching slider 342 is provided with a rotatable guide slider 3421, the guide slider 3421 is slidably connected to the switching cam groove 3411, and the switching slider 342 is also provided with a swing groove 3422; The switching rod 343 is connected to the switching component 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 slider 3421 on the switching slider 342 will slide cyclically along the switching cam groove 3411 of the switching cam, thereby causing the switching slider 3421 to move back and forth. The free end of the switching rod 343 is inserted into the swing groove 3422 of the switching slider 342, so the reciprocating movement of the switching slider 3421 will drive the switching rod 343 to swing back and forth, thereby driving the switching component 33 to swing back and forth.

[0078] In Embodiment 1 of the present invention, the switching cam 341, switching slider 342, and switching rod 343 of the timing switching device 34 are all installed on the outside of the spray base 31. This avoids water flow entering the spray base 31 from interfering with the operation of the switching cam 341, switching slider 342, and switching rod 343, thereby making the timing switching device 34 work stably and reliably. The switching cam 341 and switching slider 342 can be installed on a mounting bracket 344, which is then installed on the outside of the spray base 31. The mounting bracket 344 can be locked to the spray base 31 with screws. The mounting bracket 344 can be provided with a mounting groove 3441 that slides with the switching slider 342. The switching cam 341 can be rotatably installed onto the mounting bracket 344 via a cam cover 345. Both ends of 341 are rotatably connected to the mounting bracket 344 and the cam cover 345, respectively. The cam cover 345 can be locked to the mounting bracket 344 by screws. The shaft of the switching impeller 32 can be connected to an impeller shaft 321. The impeller shaft 321 can be integrally formed with the switching impeller 32. The impeller shaft 321 rotatably passes through the side wall of the spray seat 31. The impeller shaft 321 and the switching cam 341 are synchronously connected, so that the switching impeller 32 drives the switching cam 341 to rotate synchronously. The impeller shaft 321 can be connected to the switching cam 341 through mechanical transmission mechanisms such as worm gear transmission mechanism and gear transmission mechanism. The switching component 33 can be connected to the switching rod 343 through a connecting shaft 331 that can rotatably pass through the side wall of the spray seat 31. The connecting shaft 331 can be integrally formed with the switching component 33.

[0079] In Embodiment 1 of the present invention, the water-spraying hydraulic drive mechanism 3 further includes two water flow speed increasers 35. The inlets 3501 of the two water flow speed increasers 35 are respectively connected to the two water spray nozzles 312 of the water spray base 31, and the outlets 3502 of the two water flow speed increasers 35 are arranged in opposite directions. The present invention can increase the flow rate of the water sprayed by the water-spraying hydraulic drive mechanism 3 by setting the water flow speed increasers 35, thereby driving the cleaner body 1 to move faster. The water flow speed increaser 35 is provided with a speed-increasing flow channel 3503 connecting its inlet 3501 and outlet 3502. 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, which can increase the flow velocity of the water flowing through the speed-increasing flow channel 3503. The water flow speed increaser 35 may include a speed-increasing tube 351 and a speed-increasing inner core 352 installed in the speed-increasing tube 351. The openings at both ends of the speed-increasing tube 351 are the inlet 3501 and the outlet 3502 of the water flow speed increaser 35, respectively. The outer diameter of the speed-increasing inner core 352 is gradually expanded along the direction from the inlet 3501 to the outlet 3502 of the water flow speed increaser 35. The 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 tube 351. The inlet 3501 of the water flow speed increaser 35 can be connected to the spray nozzle 312 by means of a threaded connection.

[0080] In Embodiment 1 of the present invention, the cleaner body 1 is provided with a water passage chamber 10 and a sewage inlet 111 and a clean water outlet 121 communicating with the water passage chamber 10; the filter mechanism 2 includes a filter screen 21 installed in the water passage chamber 10 of the cleaner body 1, which divides the water passage chamber 10 into a sewage chamber 101 communicating with the sewage inlet 111 and a clean water chamber 102 communicating with the clean water outlet 121; when the cleaner body 1 moves on the water surface, the water flow on the water surface will enter the water passage chamber 10 from the sewage inlet 111 and then flow out from the clean water outlet 121, and the dirt contained in the water flow passing through the water passage chamber 10 will be intercepted in the sewage chamber 101 by the filter screen 21, thereby cleaning the dirt floating on the water surface.

[0081] In Embodiment 1 of the present invention, the number of clean water outlets 121 can be two, and the two clean water outlets 121 are arranged opposite to each other; the number of sewage inlets 111 can be two, and the two sewage inlets 111 are arranged opposite to each other; wherein one of the clean water outlets 121 and one of the sewage inlets 111 are located on one side of the cleaner body 1, and the other clean water outlet 121 and the other sewage inlet 111 are located on the other side of the cleaner body 1. On the other side of 21; the water-spraying hydraulic drive mechanism 3 is installed in the clean water chamber 102 of the cleaner body 1. The two spray nozzles 312 of the water spray base 31 of the water-spraying hydraulic drive mechanism 3 are used to spray water into the two clean water outlets 121 respectively. When the water-spraying hydraulic drive mechanism 3 sprays water into the clean water outlet 121, the sprayed water will drive the water in the water passage chamber 10 to flow out from the clean water interface 121, thereby helping the water in the water passage chamber 10 to flow out quickly, and thus helping to improve the cleaning efficiency of the water surface cleaner of the present invention. The two sewage inlets 111 are arranged opposite each other. When the water-spraying hydraulic drive mechanism 3 drives the cleaner body 1 to move forward, the water flow can enter the water passage chamber 10 from one of the two sewage inlets 111. When the water-spraying hydraulic drive mechanism 3 drives the cleaner body 1 to move in the reverse direction, the water flow can enter the water passage chamber 10 from the other of the two sewage inlets 111. Therefore, by setting two opposite sewage inlets 111, the present invention helps to improve cleaning efficiency. The sewage chamber 101 is equipped with a one-way valve plate 112 for opening and closing the sewage inlet 111. The one-way valve plate 112 is swayably installed in the sewage chamber 101 and moves against the inner periphery of the sewage inlet 111. By setting the one-way valve plate 112, the present invention can prevent the water in the sewage chamber 101 from flowing out of the sewage inlet 111, thereby preventing the dirt intercepted in the sewage chamber 101 from flowing back to the water surface from the sewage inlet 111, thus ensuring the cleaning effect.

[0082] In Embodiment 1 of the present invention, the water inlet 311 of the water spray base 31 can be located at the bottom of the cleaner body 1, so as to avoid the water flow entering the water spray base 31 from affecting the movement of the cleaner body 1.

[0083] In Embodiment 1 of the present invention, the cleaner body 1 includes an upper cover 11 with a lower opening and a lower cover 12 with an upper opening; the upper cover 11 and the lower cover 12 are connected to form the water passage chamber 10, and the filter screen 21 is sandwiched between the upper cover 11 and the lower cover 12 to divide the water passage chamber 10 into a sewage chamber 101 and a clean water chamber 102; the sewage inlet 111 is located on the upper cover 11, and the clean water outlet 121 is located on the lower cover 12, such that the clean water outlet 121 is lower than the sewage inlet 111. The upper cover 11 and the lower cover 12 are detachably connected to facilitate the cleaning of dirt intercepted in the sewage chamber 101, and at the same time, it is convenient to clean or replace the filter screen 21; the upper cover 11 and the lower cover 12 can be detachably connected by at least two fasteners 13, which are respectively fastened to the upper cover 11 and the lower cover 12, thus making it easy to assemble and disassemble the upper cover 11 and the lower cover 12.

[0084] In Embodiment 1 of the present invention, the cleaner body 1 may be equipped with a roller brush 15 corresponding to the sewage inlet 111. The roller brush 15 is opposite to the sewage inlet 111 and is located outside the sewage inlet 111. The water-spraying hydraulic drive mechanism 3 drives the roller brush 15 to rotate. When the roller brush 15 rotates, it can send the dirt floating on the water surface to the sewage inlet 111, thereby helping to send the dirt floating on the water surface into the sewage chamber 101. The water-spraying hydraulic drive mechanism 3 can be connected to the roller brush 15 through a gear transmission mechanism and a belt transmission mechanism to drive the roller brush 15 to rotate. The roller brush 15 can be rotatably fitted to the lower cover 12 of the cleaner body 1.

[0085] In Embodiment 1 of the present invention, the cleaner body 1 is provided with a float 16 for making the cleaner body 1 float on the water surface. The float 16 has a hollow structure and can drive the cleaner body 1 to float on the water surface. Specifically, the float 16 can be set on the lower cover 12 of the cleaner body 1, and the number of floats 16 can be four to ensure that the cleaner body 1 can float stably on the water surface.

[0086] Example 2:

[0087] Cooperate Figures 11 to 15 As shown, the main difference between Embodiment 2 and Embodiment 1 of the present invention is that the float 16 in Embodiment 1 is disposed on the lower cover 12 of the cleaner body 1, while the float 16 in Embodiment 2 is disposed on the upper cover 11 of the cleaner body 1. In Embodiment 2 of the present invention, the switching impeller 32 can drive the switching cam 31 to rotate through a gear transmission mechanism.

[0088] Example 3:

[0089] Cooperate Figures 16 to 25 As shown, in Embodiment 3 of the present invention, the driving mechanism is a hydraulic driving mechanism. The cleaner body 1 is equipped with a driving wheel 4 with a rotating blade 401. The hydraulic driving mechanism is specifically a rotary hydraulic driving mechanism 3' that drives the driving wheel 4 to rotate through the flowing water, so that the driving wheel 4 acts on the water flow in the pool and drives the cleaner body 1 to move.

[0090] In the third embodiment of the present invention, the rotary hydraulic drive 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 an inlet 311' and an outlet 312' communicating with its inner cavity, the power impeller 32' is rotatably installed in the inner cavity of the impeller seat 31', and the power impeller 32' is connected to the drive wheel 4 to drive the drive wheel 4 to rotate.

[0091] In the third embodiment of the present invention, the power impeller 32' can be connected to the drive wheel 4 through the timing reversing device 33', so that the cleaner body 1 can change direction, thereby enabling the present invention to clean the dirt floating on the water surface as much as possible.

[0092] In Embodiment 3 of the present invention, there are two drive wheels 4, which are rotatably located on both sides of the cleaner body 1. The timing reversing device 33' has a transmission shaft 331' that alternately rotates forward and reverse. The two ends of the transmission shaft 331' are respectively connected to the two drive wheels 4. The two ends of the transmission shaft 331' are divided into a first end and a second end, and the two drive wheels 4 are divided into a first drive wheel 41 and a second drive wheel 42. The first end of the transmission shaft 331' is connected to the first drive wheel 41 and the first drive wheel 41 is arranged to rotate synchronously with the transmission shaft 331'. The second end of the transmission shaft 331' is connected to the second drive wheel 42 through a one-way ratchet device 5. When the drive shaft 331' of the timing reversing device 33' rotates forward, the one-way ratchet device 5 is locked. The forward rotation of the drive shaft 331' drives the first drive wheel 41 and the second drive wheel 42 to rotate synchronously, thereby causing the cleaner body 1 to move. When the drive shaft 331' of the timing reversing device 33' rotates in reverse, the one-way ratchet device 5 is unlocked, so the reverse rotation of the drive shaft 331' only drives the first drive wheel 41 to rotate synchronously. This creates a speed difference between the first drive wheel 41 and the second drive wheel 42, thereby causing the cleaner body 1 to automatically change direction. Thus, by setting the timing reversing device 33' and the one-way ratchet device 5, the present invention enables the cleaner body 1 to change direction, thereby enabling the present invention to clean the floating dirt on the water surface as thoroughly as possible.

[0093] In Embodiment 3 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 swing member 336', and a transmission gear 337'. The driving gear 332', driven gear 333', reversing cam 334', and transmission gear 337' are all rotatably coupled to the cleaner body 1. The power impeller 32' drives the driving gear 332' and the reversing cam 334' to rotate. The driving gear 332' meshes with the driven gear 333'. The end face of the reversing cam 334' is provided with a reversing cam groove 3341'. The transmission gear 337' drives the drive wheel 4 to rotate. The transmission gear 337' can be coaxially connected to the transmission shaft 331' and drive the drive wheel 4 to rotate through the transmission shaft 331'. The reversing swing member... 336' is oscillatingly fitted to the cleaner body 1, and the reversing oscillating member 336' slides with the reversing cam groove 3311; the idler wheel 335' is rotatably mounted on the reversing oscillating member 336' and the idler wheel 335' is engaged with the transmission gear 337'; when the reversing cam 334' rotates, the reversing oscillating member 336' will slide cyclically along the reversing cam groove 3341' of the reversing cam 334', causing the reversing cam 334' to drive the reversing oscillating member 336' to oscillate back and forth, and the reversing oscillating member 336' will drive the idler wheel 335' to oscillate back and forth, thereby causing the idler wheel 335' to alternately mesh with the driving gear 332' and the driven gear 333', thereby controlling the transmission gear 337' to alternately rotate forward and reverse, thereby causing the transmission shaft 331' to alternately rotate forward and reverse.

[0094] In the third embodiment of the present invention, the timing reversing device 33' can be installed on the outside of the impeller seat 31' to prevent the water flow entering the impeller seat 31' from interfering with the timing reversing device 33', so that the timing reversing device 33' can operate smoothly. The driving gear 332', driven gear 333', reversing cam 334', and transmission gear 337' are rotatably mounted on a fixed bracket 338'. The driving gear 332', driven gear 333', and transmission gear 337' are on the same side of the fixed bracket 338', while the reversing cam 334' is on the other side of the fixed bracket 338'. The fixed bracket 338' is provided with an arc-shaped guide hole 3381'. The reversing swing member 336' can rotatably and slidably pass through the arc-shaped guide hole 3381', allowing the reversing swing member 336' to swing. One end of the reversing swing member 336' is slidably connected to the reversing cam groove 3341', and the other end of the reversing cam groove 3341' is rotatably connected to the idler wheel 335'. ​​The fixed bracket 338' can be locked to the outside of the impeller seat 31' with screws, thereby installing the timing reversing device 33' on the outside of the impeller seat 31'. The power impeller 32' is connected to a power shaft 321' at its shaft center. One end of the power shaft 321' rotatably extends out of the impeller seat 31'. The power shaft 321' is connected to the drive gear 332' and the reversing cam 334' to drive the drive gear 332' and the reversing cam 334' to rotate. The power shaft 321' can be connected to the drive gear 332' through a gear transmission structure, and the power shaft 321' can be connected to the reversing cam 334' through a worm gear transmission structure.

[0095] In Embodiment 3 of the present invention, the one-way ratchet device 5 includes an outer ratchet 51 and an outer stop 52; wherein the outer ratchet 51 is drivenly connected to the second end of the drive shaft 331' and the outer ratchet 51 and the drive shaft 331' are synchronously rotated, the outer ratchet 51 and the second end of the drive shaft 331' can be drivenly connected by gear transmission, and the outer ratchet 51 has a plurality of outer ratchet teeth 511 on its outer periphery; the outer stop 52 is oscillatingly mounted on the second drive wheel 42, the second drive wheel 42 and the outer ratchet 51 are coaxially arranged, the outer stop 52 contacts the outer ratchet teeth 511 of the outer ratchet 51 and only allows the outer ratchet 51 to rotate unidirectionally relative to the second drive wheel 42. When the drive shaft 331' of the timing reversing device 33' rotates forward, the end of the outer stop 52 engages the outer ratchet tooth 511 of the outer ratchet 51, thus locking the one-way ratchet device 5. At this time, the forward rotation of the drive shaft 331' can drive the outer ratchet 51 to rotate, and the outer ratchet 51 drives the second drive wheel 42 to rotate synchronously. When the drive shaft 331' of the timing reversing device 33' rotates in reverse, the drive shaft 331' drives the outer ratchet 51 to rotate, and the one-way ratchet device 5 is in an unlocked state. When the outer ratchet 51 rotates, the outer stop 52 slides past the outer ratchet tooth 511 of the outer ratchet 51, so that the outer ratchet 51 cannot drive the second drive wheel 42 to rotate.

[0096] The one-way ratchet device 5 further includes an inner ratchet 53 and an inner stop 54; the inner ratchet 53 is coaxially connected to the second drive wheel 42 and is synchronously rotated with the second travel wheel 53, and the inner circumference of the inner ratchet 53 is provided with a plurality of inner ratchet teeth 531; the inner stop 54 is drively connected to the second end of the drive shaft 331' and is synchronously rotated with the drive shaft 331', the inner stop 54 can be coaxially connected to the outer ratchet 51, and the outer wall of the inner stop 54 is provided with at least one elastic pawl 541, the elastic pawl 541 of the inner stop 54 contacts the inner ratchet teeth 531 of the inner ratchet 53 and only allows the inner ratchet 53 to rotate unidirectionally relative to the inner stop 54. When the drive shaft 331' of the timing reversing device 33' rotates forward, the elastic pawl 541 of the inner stop 54 engages the inner ratchet tooth 531 of the inner ratchet 53, thus locking the one-way ratchet device 5. At this time, the forward rotation of the drive shaft 331' can drive the inner stop 54 to rotate, and the inner stop 54 drives the second drive wheel 42 to rotate synchronously through the inner ratchet 53. When the drive shaft 331' of the timing reversing device 33' rotates in reverse, the drive shaft 331' drives the inner stop 54 to rotate, and the one-way ratchet device 5 is in the unlocked state. When the inner stop 54 rotates, the elastic pawl 541 of the inner stop 54 slides past the inner ratchet tooth 531 of the inner ratchet 53, so that the inner ratchet 53 cannot drive the inner ratchet 53 and the second drive wheel 42 to rotate.

[0097] It should be noted that the outer ratchet 51 and the outer stop 52 of the one-way ratchet device 5 constitute a one-way ratchet mechanism, and the inner ratchet 53 and the inner stop 53 of the one-way ratchet device 5 constitute another one-way ratchet mechanism. For the present invention, only one of these two one-way ratchet mechanisms is required to enable the cleaner body 1 to change direction. If both one-way ratchet mechanisms are provided, the one-way limiting effect of the two one-way ratchet mechanisms will be superimposed to ensure that the transmission shaft 331' will not drive the second drive wheel 42 to rotate when the transmission shaft 331' reverses.

[0098] It should be noted that in Embodiment 3 of the present invention, the two drive wheels 4 can also be arranged to rotate synchronously with the transmission shaft 341. When the transmission shaft 341 rotates forward and reverse alternately, the two drive wheels 4 will rotate forward and reverse alternately, thereby driving the cleaner body 1 to move forward and reverse alternately. In this way, the cleaner body 14 can also change direction, thereby enabling the present invention to clean the dirt floating on the water surface as much as possible.

[0099] In Embodiment 3 of the present invention, the cleaner body 1 is provided with a water passage chamber 10, a sewage inlet 111, and a clean water outlet 121; the filtration mechanism 2 includes a filter screen 21 installed in the water passage chamber 10 of the cleaner body 1, which divides the water passage chamber 10 into a sewage chamber 101 communicating with the sewage inlet 111 and a clean water chamber 102 communicating with the clean water outlet 121; and the rotary hydraulic drive mechanism 3' is installed on the cleaner body. In the clean water chamber 101 of the cleaner body 1, the clean water outlet 121 is connected to the outlet 312' of the impeller seat 31' of the rotary hydraulic drive mechanism 3', so that the clean water outlet 121 communicates with the clean water chamber 102 through the inner cavity of the impeller seat 31'; the clean water outlet 121 can be connected to the water pump inlet through a hose, so that the water pump can draw water from the water passage chamber 10 of the cleaner body 1, and the water flow in the water passage chamber 10 drives the power impeller 32' to rotate. When the water pump draws water from the water passage chamber 10 of the cleaner body 1, the water on the surface will enter the water passage chamber 10 from the sewage inlet 111 and then flow out from the clean water outlet 121. The dirt contained in the water flow passing through the water passage chamber 10 will be intercepted in the sewage chamber 101 by the filter screen 21, thereby cleaning the dirt floating on the water surface. The clean water outlet 121 can be located at the bottom of the cleaner body 1, thereby avoiding interference from the water flow drawn by the water pump on the movement of the cleaner body 1.

[0100] In the third embodiment of the present invention, there can be two sewage inlets 111, which are arranged opposite to each other and located on the side of the cleaner body 1. In this way, when the cleaner body 1 moves forward and backward, the water flow can enter the water passage chamber 10 from one of the two sewage inlets 111. Therefore, the present invention helps to improve cleaning efficiency by setting two opposite sewage inlets 111.

[0101] In the third embodiment of the present invention, the sewage chamber 101 is equipped with a one-way valve plate 112 for opening and closing the sewage inlet 111. The one-way valve plate 112 is swayably installed in the sewage chamber 101, and the one-way valve plate 112 moves against the inner periphery of the sewage inlet 111. By setting the one-way valve plate 112, the present invention can prevent the water in the sewage chamber 101 from flowing out of the sewage inlet 111, thereby preventing the dirt intercepted in the sewage chamber 101 from flowing back to the water surface from the sewage inlet 111, thus ensuring the cleaning effect.

[0102] In Embodiment 3 of the present invention, the cleaner body 1 includes an upper cover 11 with a lower opening and a lower cover 12 with an upper opening; the upper cover 11 and the lower cover 12 are connected to form the water passage chamber 10, and the filter screen 21 is sandwiched between the upper cover 11 and the lower cover 12 to divide the water passage chamber 10 into a sewage chamber 101 and a clean water chamber 102; the sewage inlet 111 is located on the upper cover 11, and the clean water outlet 121 is located on the lower cover 12, so that the clean water outlet 121 is lower than the sewage inlet 111. The upper cover 11 and the lower cover 12 are detachably connected to facilitate the cleaning of dirt intercepted in the sewage chamber 101, and at the same time, it is convenient to clean or replace the filter screen 21; the upper cover 11 and the lower cover 12 can be detachably connected by at least two connectors 13', the connectors 13' are rotatably connected to the lower cover 12, and the connectors 13' rotatably engage with the connecting part 112 of the upper cover 11, so that the upper cover 11 and the lower cover 12 can be easily disassembled and assembled.

[0103] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A water surface cleaner, characterized in that: It includes a floating cleaner body and a drive mechanism and a filter mechanism installed on the cleaner body; The drive mechanism is used to drive the cleaner body to move on the water surface; the filtration mechanism is used to filter the water flow. The driving mechanism is a hydraulic driving mechanism; the hydraulic driving mechanism is a water jet type hydraulic driving mechanism. The water-spraying hydraulic drive mechanism includes a water spray base and a switching impeller installed on the main body of the cleaner. The water spray base has a water distribution chamber and an impeller chamber. The water distribution chamber is connected to the impeller chamber through a water inlet. The water spray base also has a water inlet connected to the impeller chamber and two oppositely arranged water spray nozzles connected to the water distribution chamber. A switching element is fitted in the water distribution chamber. The switching element is used to control the water inlet to selectively connect to one of the two water spray nozzles. The switching impeller is rotatably fitted in the impeller chamber. The switching impeller is driven by the switching element through a timed switching device. The water distribution chamber has two water outlets connected to the water inlet, and each water outlet is connected to one of the two spray nozzles. The switching element is oscillatingly installed in the water distribution chamber and can movably block the two water outlets. The timed switching device drives the switching element to oscillate back and forth. The timed switching device includes a switching cam, a switching slider, and a switching rod. The switching cam is rotatably installed on the spray base and is driven to rotate by a switching impeller. The end face of the switching cam has a switching cam groove. The switching slider is translatably installed on the spray base and has a rotatable guide slider that slides in contact with the switching cam groove. The switching slider also has an oscillating groove. The switching rod is connected to the switching element, and the free end of the switching rod is inserted into the oscillating groove of the switching slider.

2. The water surface cleaner as described in claim 1, characterized in that: The water jet type hydraulic drive mechanism also includes two water flow speed increasers. The inlets of the two water flow speed increasers are respectively connected to the two water jet nozzles of the water jet base, and the outlets of the two water flow speed increasers are set in opposite directions.

3. The water surface cleaner as described in claim 2, characterized in that: The water flow speed increaser is provided with a speed increase channel connecting its inlet and outlet, and the flow area of ​​the speed increase channel is gradually reduced along the direction from the inlet to the outlet of the water flow speed increaser.

4. The water surface cleaner as described in claim 1, characterized in that: The switching cam, switching slider, and switching rod of the timing switching device are all installed on the outside of the spray seat. The switching component is connected to the switching rod through a rotatable connecting shaft that passes through the side wall of the spray seat. The axis of the switching impeller is connected to an impeller shaft, which rotatably passes through the side wall of the spray seat and is synchronously connected to the switching cam.

5. The water surface cleaner as described in claim 1, characterized in that: The main body of the cleaner is provided with a water passage chamber and a sewage inlet and a clean water outlet communicating with the water passage chamber; The number of clean water outlets is two, and the two clean water outlets are arranged opposite to each other; the number of wastewater inlets is two, and the two wastewater inlets are arranged opposite to each other; wherein one of the two clean water outlets and one of the two wastewater inlets is located on one side of the main body of the cleaner, and the other of the two clean water outlets and the other of the two wastewater inlets is located on the other side of the main body of the cleaner. The filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber that communicates with two sewage inlets and a clean water chamber that communicates with two clean water outlets. The water-spraying hydraulic drive mechanism is installed in the clean water chamber of the cleaner body, and the two spray nozzles of the water-spraying hydraulic drive mechanism are used to spray water flow to the two clean water outlets respectively.

6. The water surface cleaner as described in claim 1, characterized in that: The main body of the cleaner is provided with a water passage chamber and a sewage inlet and a clean water outlet communicating with the water passage chamber; The filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber that communicates with the sewage inlet and a clean water chamber that communicates with the clean water outlet.

7. The water surface cleaner as described in claim 5 or 6, characterized in that: The main body of the cleaner is equipped with a roller brush that is positioned opposite the sewage inlet. The roller brush is positioned outside the sewage inlet and the corresponding sewage inlet is opposite to it. The water-spraying hydraulic drive mechanism drives the roller brush to rotate.

8. The water surface cleaner as described in claim 5 or 6, characterized in that: The cleaner body includes an upper cover with a bottom opening and a lower cover with a top opening; the upper cover and the lower cover are detachably connected, and a filter screen is sandwiched between the upper cover and the lower cover; the sewage inlet is located on the upper cover, and the clean water outlet is located on the lower cover.

9. The water surface cleaner as described in claim 5 or 6, characterized in that: The sewage chamber is equipped with a one-way valve for opening and closing the sewage inlet. The one-way valve is oscillatingly installed in the sewage chamber and moves against the inner periphery of the sewage inlet.

10. A water surface cleaner, characterized in that: It includes a floating cleaner body and a drive mechanism and a filter mechanism installed on the cleaner body; The drive mechanism is used to drive the cleaner body to move on the water surface; the filtration mechanism is used to filter the water flow. The drive mechanism is a hydraulic drive mechanism; the hydraulic drive mechanism is a rotary hydraulic drive mechanism; the cleaner body is equipped with a drive wheel with rotating blades, and the rotary hydraulic drive mechanism drives the drive wheel to rotate. The rotary hydraulic drive mechanism includes an impeller seat and a power impeller; the impeller seat is installed on the cleaner body and has an inlet and an outlet communicating with its inner cavity; the power impeller is rotatably installed in the inner cavity of the impeller seat and is connected to the drive wheel to drive the drive wheel to rotate. The power impeller is connected to the drive wheels via a timing reversing device; there are two drive wheels, which are rotatable on both sides of the cleaner body; the timing reversing device has a drive shaft that alternately rotates forward and reverse, with both ends of the drive shaft connected to the two drive wheels; the two ends of the drive shaft are divided into a first end and a second end, and the two drive wheels are divided into a first drive wheel and a second drive wheel; the first end of the drive shaft is connected to the first drive wheel, and the first drive wheel rotates synchronously with the drive shaft, while the second end of the drive shaft is connected to the second drive wheel via a one-way ratchet device.

11. The water surface cleaner as described in claim 10, characterized in that: The one-way ratchet device includes an outer ratchet and an outer stop; The outer ratchet is connected to the second end of the drive shaft and is configured to rotate synchronously with the drive shaft. The outer ratchet has several external ratchet teeth on its outer circumference. The outer stop is oscillatingly mounted on the second drive wheel. The second drive wheel and the outer ratchet are coaxially arranged. The outer stop contacts the external ratchet teeth of the outer ratchet and only allows the outer ratchet to rotate in one direction relative to the second drive wheel.

12. The water surface cleaner as described in claim 10 or 11, characterized in that: The one-way ratchet device includes an inner ratchet and an inner stop; The inner ratchet is coaxially connected to the second drive wheel and rotates synchronously with the second drive wheel. The inner circumference of the inner ratchet is provided with a number of inner ratchet teeth. The inner stop is connected to the second end of the drive shaft and is configured to rotate synchronously with the drive shaft. The outer wall of the inner stop is provided with at least one elastic pawl. The elastic pawl of the inner stop contacts the inner ratchet teeth of the inner ratchet and only allows the inner ratchet to rotate in one direction relative to the inner stop.

13. The water surface cleaner as described in claim 10, characterized in that: The timing reversing device includes a driving gear, a driven gear, a reversing cam, an idler gear, a reversing oscillating element, and a transmission gear; The drive gear, driven gear, reversing cam, and transmission gear are all rotatably fitted to the cleaner body. The power impeller drives the drive gear and reversing cam to rotate. The drive gear meshes with the driven gear. The reversing cam end face is provided with a reversing cam groove. The transmission gear is connected to the transmission shaft. The reversing swing member is oscillatingly fitted to the cleaner body and slides with the reversing cam groove. The idler wheel is rotatably mounted on the reversing swing member and maintains meshing with the transmission gear. When the reversing cam rotates, it drives the reversing oscillating component to oscillate back and forth, which in turn drives the idler wheel to oscillate back and forth. This causes the idler wheel to alternately mesh with the driving gear and the driven gear, thereby controlling the transmission gear to alternately rotate forward and reverse.

14. The water surface cleaner as described in claim 10, characterized in that: The main body of the cleaner is provided with a water passage chamber, a clean water outlet and two sewage inlets. The two sewage inlets are arranged opposite each other and are located on the side of the main body of the cleaner. The filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber that communicates with the sewage inlet and a clean water chamber that communicates with the clean water outlet. The rotary hydraulic drive mechanism is installed in the clean water chamber of the cleaner body. The clean water outlet is connected to the outlet of the impeller seat of the rotary hydraulic drive mechanism, so that the clean water outlet communicates with the clean water chamber through the inner cavity of the impeller seat.

15. The water surface cleaner as described in claim 10, characterized in that: The main body of the cleaner is equipped with a water passage chamber, a sewage inlet, and a clean water outlet; The filtration mechanism includes a filter screen installed in the water passage chamber of the cleaner body, which divides the water passage chamber into a sewage chamber that communicates with the sewage inlet and a clean water chamber that communicates with the clean water outlet. The rotary hydraulic drive mechanism is installed in the clean water chamber of the cleaner body. The clean water outlet is connected to the outlet of the impeller seat of the rotary hydraulic drive mechanism, so that the clean water outlet communicates with the clean water chamber through the inner cavity of the impeller seat.

16. The water surface cleaner as described in claim 14 or 15, characterized in that: The clean water outlet is located at the bottom of the cleaner body.

17. The water surface cleaner as described in claim 14 or 15, characterized in that: The cleaner body includes an upper cover with a bottom opening and a lower cover with a top opening; the upper cover and the lower cover are detachably connected, and a filter screen is sandwiched between the upper cover and the lower cover; the sewage inlet is located on the upper cover, and the clean water outlet is located on the lower cover.

18. The water surface cleaner as described in claim 14 or 15, characterized in that: The sewage chamber is equipped with a one-way valve for opening and closing the sewage inlet. The one-way valve is oscillatingly installed in the sewage chamber and moves against the inner periphery of the sewage inlet.

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