Pool cleaner

Abstract

This utility model discloses a pool cleaner, which includes a cleaner body and a filter device, a water spray device, a cleaning device, and a drive control device installed on the cleaner body. A first walking device and a second walking device are respectively fitted to opposite sides of the cleaner body. The filter device is detachably fitted to the cleaner body and has a suction port and a clean water port. The water inlet of the water spray device is connected to the clean water port, and the water outlet of the water spray device is connected to a spray pipe, the outlet of which is inclined to the walking direction of the pool cleaner. The drive control device is in transmission cooperation with the first walking device, the second walking device, and the water spray device. This utility model's pool cleaner can stably move upwards along the pool wall.

Description

Technical Field

[0001] This utility model relates to the field of pool cleaning, and in particular to a pool cleaner. Background Technology

[0002] Because dirt accumulates at the bottom of the pool after long-term use, it needs to be cleaned regularly.

[0003] Currently, many people use pool cleaners that can move around in the pool to clean it; these pool cleaners can be water-powered or electrically powered; however, existing pool cleaners are not very effective at climbing, meaning they cannot stably move up the pool wall, resulting in poor cleaning performance.

[0004] In view of the above problems, it is necessary to study a pool cleaner that can move steadily upward on the pool wall. Utility Model Content

[0005] The purpose of this invention is to provide a pool cleaner that can move steadily upwards on the pool wall.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] A pool cleaner includes a cleaner body and a filter device, a water spray device, a cleaning device, and a drive control device installed on the cleaner body; a first walking device and a second walking device are respectively fitted on opposite sides of the cleaner body; the filter device is detachably fitted to the cleaner body and has a suction port and a clean water port; the water inlet of the water spray device is connected to the clean water port, and the water outlet of the water spray device is connected to a spray pipe, the outlet of the spray pipe being inclined in the walking direction of the pool cleaner; the drive control device is respectively driven by the first walking device, the second walking device, and the water spray device.

[0008] The injection pipe has a curved structure.

[0009] The angle between the central axis of the outlet of the spray pipe and the direction of travel of the pool cleaner is 35°~45°.

[0010] The angle between the central axis of the inlet of the spray pipe and the direction of travel of the pool cleaner is 25°~35°.

[0011] The water spraying device includes a water spraying body and a water spraying impeller. The water spraying body is a hollow structure and is fixedly installed in the cleaner body. The two ends of the water spraying body are the water inlet and water outlet of the water spraying device, respectively. The water spraying impeller is rotatably installed in the water spraying body and is driven and controlled by the drive control device.

[0012] The water outlet of the water spraying device is connected to the spray pipe through a shunting cover, and the shunting cover is equipped with shunting blades.

[0013] The filtration device includes a detachable filter box and a filter element; the filter box is detachably fitted to the cleaner body, and a filter chamber is formed inside the filter box. The filter element is installed in the filter chamber and divides the filter chamber into a sewage chamber and a clean water chamber; the filter box is provided with at least one suction port communicating with the sewage chamber and at least one clean water port communicating with the clean water chamber. The suction port is equipped with a one-way suction valve to control the unidirectional flow of water into the sewage chamber.

[0014] The filter box includes a base and a cover. One side of the base is hinged to the cover, and the other side of the base is fitted with a rotatable latch that hooks onto the other side of the cover. The filter element is sandwiched between the base and the cover.

[0015] The filter device is inserted into the cleaner body. The cleaner body has a pick-up and drop-off port corresponding to the filter device. The cleaner body is equipped with a pick-up and drop-off cover that can be opened and closed and a locking component for locking the pick-up and drop-off cover. One side of the pick-up and drop-off cover is hinged to the cleaner body. The locking component includes a locking seat and a locking torsion spring. The locking seat is rotatably fitted to the cleaner body. The locking torsion spring is fitted between the locking seat and the cleaner body. The locking torsion spring is used to drive the locking seat against the inner wall of the other side of the pick-up and drop-off cover. The locking seat has a pressing part located outside the cleaner body.

[0016] The drive control device includes a first travel motor, a second travel motor, a water spray motor, a main control board, and a power supply battery. The main control board is electrically connected to the first travel motor, the second travel motor, and the water spray motor, respectively. The power supply battery is electrically connected to the main control board. The output shafts of the first travel motor and the second travel motor are respectively connected to the first travel device and the second travel device for transmission. The output shaft of the water spray motor is connected to the water spray device for transmission.

[0017] The first walking device has a first drive wheel that is rotatably engaged with the cleaner body, and the first drive wheel has a first gear hole; the second walking device has a second drive wheel that is rotatably engaged with the cleaner body, and the first drive wheel has a second gear hole; the output shafts of the first and second walking motors are respectively engaged with a first output gear and a second output gear, the first output gear is inserted into the first gear hole and keyed to the first gear hole, the first output gear has a radial clearance fit and an axial clearance fit with the first gear hole, the second output gear is inserted into the second gear hole and keyed to the second gear hole, the second output gear has a radial clearance fit and an axial clearance fit with the second gear hole.

[0018] The cleaner body has a first limiting member and a second limiting member fixedly fitted on opposite sides. The first limiting member forms a first limiting ring edge, and the second limiting member forms a first limiting ring edge. The first drive wheel has a first limiting ring groove for the first limiting ring edge to be inserted into. The first limiting ring edge and the first limiting ring groove are in radial clearance fit and axial clearance fit. The second drive wheel has a second limiting ring groove for the second limiting ring edge to be inserted into. The second limiting ring edge and the second limiting ring groove are in radial clearance fit and axial clearance fit.

[0019] The first walking device also has a first driven wheel that is rotatably engaged with the cleaner body, and the first driven wheel is driven by a first driving wheel; the second walking device also has a second driven wheel that is rotatably engaged with the cleaner body, and the second driven wheel is driven by a second driving wheel.

[0020] The drive control device also includes a drive control box connected to the cleaner body. The drive control box has a closed electrical chamber in which the first walking motor, the second walking motor, the water spray motor, the main control board, and the power supply battery are all installed. The drive control box has a first through hole, a second through hole, and a third through hole communicating with the electrical chamber, corresponding to the output shafts of the first walking motor, the second walking motor, and the water spray motor, respectively. The output shaft of the first walking motor passes through the first through hole, and the first through hole is fitted with a first seal that seals with the output shaft of the first walking motor. The output shaft of the second walking motor passes through the second through hole, and the second through hole is fitted with a second seal that seals with the output shaft of the second walking motor. The output shaft of the water spray motor passes through the third through hole, and the third through hole is fitted with a third seal that seals with the output shaft of the water spray motor.

[0021] The first through hole contains a first bearing that supports the output shaft of the first walking motor, and the second through hole contains a second bearing that supports the output shaft of the second walking motor.

[0022] The drive control box is equipped with control buttons and a charging interface that are electrically connected to the main control board. The control buttons are equipped with button caps, and the charging interface is equipped with sealing plugs. The cleaner body is provided with clearance openings corresponding to the control buttons and the charging interface.

[0023] The cleaning device includes at least one rotatable wheel brush mounted on the cleaner body, and the wheel brush is in transmission cooperation with the drive control device.

[0024] The cleaning device has two brushes, which are located on either side of the suction port of the filter device.

[0025] The cleaner body is provided with a drain outlet that is connected to the clean water inlet of the filter device, and the drain outlet is equipped with a drain one-way valve to control the water flow out of the drain outlet in one direction.

[0026] The cleaner body has a handle on one side, and the drain outlet is located away from the handle.

[0027] After adopting the above solution, when the water tank cleaner of this utility model is in use, the drive control device drives the first walking device and the second walking device to move, thereby driving the entire water tank cleaner to move in the water tank; during the movement of the water tank, the cleaning device cleans the dirt attached to the bottom and walls of the water tank, and the drive control device drives the water spraying device to work, so that the water in the water tank flows through the filter device and the water spraying device in sequence before being sprayed out from the spray pipe, while the filter device collects the dirt in the water flow. In this way, the water tank cleaner of this utility model can clean and collect the dirt in the water tank, thereby cleaning the water tank. When the water cleaner of this invention moves upward on the wall of the pool, the outlet of the spray pipe is inclined to the direction of movement of the water cleaner, so that the water flow sprayed from the spray pipe forms an angle with the pool wall. This causes the water flow sprayed from the spray pipe to exert two reaction forces on the water cleaner. One reaction force drives the water cleaner to stick to the pool wall, and the other reaction force drives the water cleaner to move upward along the pool wall. In this way, the water cleaner of this invention can move stably upward on the pool wall, thereby improving the cleaning effect on the pool wall. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0029] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0030] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0031] Figure 4 This is a schematic diagram illustrating the use of this utility model.

[0032] Figure 5 Structural breakdown of this utility model Figure 1 .

[0033] Figure 6 Structural breakdown of this utility model Figure 2 .

[0034] Figure 7 A cross-sectional view of this utility model Figure 1 .

[0035] Figure 8 A cross-sectional view of this utility model Figure 2 .

[0036] Figure 9 A cross-sectional view of this utility model Figure 3 .

[0037] Figure 10 A cross-sectional view of this utility model Figure 4 .

[0038] Figure 11 A cross-sectional view of this utility model Figure 5 .

[0039] Figure 12 A cross-sectional view of this utility model Figure 6 .

[0040] Figure 13 This is a schematic diagram of the structure of the filtration device of this utility model. Figure 1 .

[0041] Figure 14 This is a schematic diagram of the structure of the filtration device of this utility model. Figure 1 .

[0042] Figure 15 This is a schematic diagram of the drive control device of this utility model.

[0043] Figure 16 This is an exploded view of the drive control device of this utility model.

[0044] Figure 17 This is a schematic diagram of the water outlet of the jet pipe of this utility model.

[0045] Label Explanation:

[0046] Cleaner body A, pick-up and drop-out port A1, drain port A2, drain check valve A3, handle A4, clearance port A5.

[0047] Filter device B, suction port B01, clean water port B02, filter chamber B03, wastewater chamber B031, clean water chamber B032, filter box B1, box base B11, box cover B12, buckle plate B13, filter element B2, suction check valve plate B3.

[0048] Water spray device C, water spray body C1, water spray impeller C2,

[0049] Cleaning device D, wheel brush D1

[0050] Drive control device E, first travel motor E1, first output gear E11, second travel motor E2, second output gear E21, water spray motor E3, main control board E4, power supply battery E5, drive control box E6, electrical chamber E601, water passage E602, first perforation E61, first seal E611, second perforation E62, second seal E621, third perforation E63, third seal E631, control button E7, button cap E71, charging interface E8, sealing plug E81.

[0051] First traveling device F, first driving wheel F1, first gear hole F11, first limiting ring groove F12, first driven wheel F2

[0052] The second traveling device G, the second driving wheel G1, the second gear hole G11, the second limiting ring groove G12, and the second driven wheel G2.

[0053] Injection pipe H, protective grille H1,

[0054] Take the lid I,

[0055] Locking component J, locking seat J1, pressing part J11, locking torsion spring J2

[0056] Fairing K, rectifier blades K1,

[0057] First limiting element L, first limiting ring along L1

[0058] The second limiting element M, the second limiting ring along M1

[0059] Gear transmission mechanism N,

[0060] Pool bottom S1, pool wall S2. Detailed Implementation

[0061] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0062] like Figures 1 to 17As shown, this utility model discloses a pool cleaner, which includes a cleaner body A and a filter device B, a water spray device C, a cleaning device D, and a drive control device E installed on the cleaner body A; wherein, a first walking device F and a second walking device G are respectively fitted on opposite sides of the cleaner body A; the filter device B is detachably fitted to the cleaner body A, and the filter device B has a suction port B01 and a clean water port B02; the water inlet of the water spray device C is connected to the clean water port B02, and the water outlet of the water spray device C is connected to the spray pipe H, and the outlet of the spray pipe H is inclined in the walking direction of the pool cleaner (if the walking direction of the pool cleaner is back and forth, the outlet of the spray pipe H is inclined upward from front to back); the drive control device E is respectively driven by the first walking device F, the second walking device G, and the water spray device C.

[0063] In use, the water tank cleaner of this utility model uses a drive control device E to drive the first walking device F and the second walking device G to move the entire water tank cleaner within the tank. During this movement, the cleaning device D cleans the dirt adhering to the bottom S1 and walls S2 of the tank, while the drive control device E drives the spraying device C to operate. This causes the water in the tank to flow sequentially through the filter device B, the spraying device C, and then be sprayed out from the spray pipe H. The filter device B collects the dirt in the water flow. In this way, the water tank cleaner of this utility model can clean and collect the dirt in the tank, thereby cleaning the tank. (The last sentence appears to be incomplete and possibly refers to a different device.) Figure 4 As shown, when the water cleaner of this invention moves upward on the pool wall S2, because the outlet of the spray pipe H is inclined to the direction of movement of the water cleaner, the water flow sprayed from the spray pipe H will form an angle with the pool wall S2. This causes the water flow sprayed from the spray pipe H to exert two reaction forces on the water cleaner. One reaction force F1 drives the water cleaner to stick to the pool wall S2, and the other reaction force F2 drives the water cleaner to move upward along the pool wall S2. In this way, the water cleaner of this invention can move stably upward on the pool wall S2, thereby improving the cleaning effect on the pool wall S2.

[0064] In an embodiment of this utility model, the cleaner body A is assembled from multiple components, which facilitates the installation of the filter device B, the water spray device C, the cleaning device D, and the drive control device E. The cleaner body A may have a pick-and-place port A1 corresponding to the filter device B for picking up and placing the filter device B, which is then inserted into the cleaner body A, making it easy to install and remove the filter device B. The cleaner body A is equipped with a pick-and-place cover I that can be opened and closed by the pick-and-place port A1, and a locking component J for locking the pick-and-place cover I. When installing the filter device B, first open the pick-and-place cover I, then insert the filter device B into the cleaner body A through the pick-and-place port A1, then close the pick-and-place cover I and lock it with the locking component J to prevent the filter device B from coming out. When removing the filter device B, first release the locking component J from the pick-and-place cover I, then open the pick-and-place cover I, then remove the filter device B from the pick-and-place port A1, and finally close the pick-and-place cover I.

[0065] In an embodiment of this utility model, one side of the take-up cover I is hinged to the cleaner body A. The locking component J may include a locking seat J1 and a locking torsion spring J2. The locking seat J1 is rotatably fitted to the cleaner body A, and the locking torsion spring J2 is fitted between the locking seat J1 and the cleaner body A. The locking torsion spring J2 is used to drive the locking seat J1 to abut against the inner wall of the other side of the take-up cover I. The locking seat J1 has a pressing part J11 located outside the cleaner body A. The user can unlock and open the take-up cover I with one hand. Specifically, the user first presses the pressing part J11 of the locking seat J1 with one hand, causing the locking seat J1 to rotate, so that the locking seat J1 releases its abutment against the take-up cover I, thereby unlocking the take-up cover I. At this time, the user's hand can just hook the side of the take-up cover I that is fitted with the locking seat J1. After that, the user's hand directly drives the take-up cover I to rotate and fully open the take-up cover I. This operation is very convenient.

[0066] In an embodiment of this utility model, the cleaner body A may be provided with a drain outlet A2 that communicates with the clean water inlet B02 of the filter device B. The drain outlet A2 can be connected to the clean water inlet B02 of the filter device B through the inner cavity of the cleaner body A. When the user wants to remove the cleaner from the pool, the water inside the cleaner can be discharged through the drain outlet A2, reducing the overall weight and making it easier for the user to remove the cleaner from the pool. A handle A4 may be provided on one side of the cleaner body A, with the drain outlet A2 positioned away from the handle A4. When the user holds the handle A4 to remove the cleaner from the pool, the water inside the cleaner is discharged along the drain outlet A2 because it is positioned away from the handle A4, making the entire operation very smooth and convenient for the user.

[0067] In an embodiment of this utility model, the drain outlet A2 may be equipped with a one-way valve A3 to control the unidirectional flow of water out of the drain outlet A2, preventing dirty water in the pool from flowing into the cleaner body A through the drain outlet A2. The one-way valve A3 is an elastic structure, fitted on the outside of the drain outlet A2, with one side of the one-way valve A3 connected to the cleaner body A, and the one-way valve A3 movably seals the outer opening of the drain outlet A2.

[0068] In an embodiment of this utility model, the filtration device B includes a detachable filter box B1 and a filter element B2; the filter box B1 is detachably fitted to the cleaner body A, and a filter chamber B03 is formed inside the filter box B1. The filter element B2 is installed in the filter chamber B03 and divides the filter chamber B03 into a sewage chamber B031 and a clean water chamber B032; the filter box B1 is provided with at least one suction port B01 communicating with the sewage chamber B031 and at least one clean water port B02 communicating with the clean water chamber B032. The suction port B01 is equipped with a suction one-way valve plate B3 to control the unidirectional flow of water into the sewage chamber B031. When the water spray device C is working, it controls the water flow to sequentially pass through the suction port B01, the sewage chamber B031, the filter element B2, the clean water chamber B032, and the clean water outlet B02. The filter element B2 can intercept dirt in the water flow into the sewage chamber B031. When the water pump stops working, the suction one-way valve B3 closes the suction port B01, thereby preventing dirt in the sewage chamber B031 from flowing out of the suction port B01. The filter box B1 can be disassembled for easy cleaning of dirt on the sewage chamber B031 and the filter element B2. The suction one-way valve B3 can be an elastic structure. The suction one-way valve B3 fits inside the sewage chamber B031, and one side of the suction one-way valve B3 is connected to the filter box B1. The suction one-way valve B3 can movably block the inner opening of the suction port B01 corresponding to the suction one-way valve B3.

[0069] In an embodiment of this utility model, the filter box B1 may include a box base B11 and a box cover B12. One side of the box base B11 is hinged to the box cover B12, and the other side of the box base B11 is fitted with a rotatable fastener B13, which movably hooks onto the other side of the box cover B12. The filter element B2 is sandwiched between the box base B11 and the box cover B12. The box base B11 is provided with the sewage suction port B01, and the box cover B12 is provided with the clean water port B02. A sewage chamber B031 is formed between the filter element B2 and the box base B11, and a clean water chamber B032 is formed between the filter element B2 and the box cover B12. When the filter box B1 needs to be opened, simply apply force to the fastener B13 to drive it to rotate, thereby releasing the fastener B13 from the box cover B12, and then rotate the box cover B12. The operation is convenient.

[0070] In an embodiment of this utility model, the water spraying device C may include a water spraying body C1 and a water spraying impeller C2. The water spraying body C1 is a hollow structure and is fixedly installed in the cleaner body A. The two ends of the water spraying body C1 are the water inlet and water outlet of the water spraying device C, respectively. The water spraying impeller C2 is rotatably installed in the water spraying body C1. The water spraying impeller C2 is driven and coordinated with the drive control device E. The drive control device E drives the water spraying impeller C2 to rotate, so that the water in the pool flows sequentially through the filter device B, the water spraying device C, and then sprays out from the spray pipe H. The water outlet of the water spraying device C is connected to the spray pipe H through a rectifier K. The rectifier K is provided with rectifying blades K1 inside. The rectifier K can rectify the water outlet of the water spraying device C, eliminate the rotational kinetic energy of the water outlet of the water spraying device C, and convert some of the turbulent kinetic energy into pressure energy, thereby improving the water outlet effect of the spray pipe H. A protective grille H1 can be installed in the spray pipe H to prevent debris from entering the water spray device C and affecting its operation.

[0071] In an embodiment of this utility model, the spray pipe H can be a bent pipe structure (i.e., the spray pipe H bends towards the cleaner body A). This design ensures that when the pool cleaner moves in reverse (defined as the pool cleaner moving along the side closer to the water outlet of the spray pipe is moving in reverse, and defined as the pool cleaner moving along the side farther from the water outlet of the spray pipe is moving in forward direction), the side of the pool cleaner closest to the water outlet of the spray pipe will not tilt up, ensuring stable movement. Specifically, in conjunction with... Figure 7 and Figure 17 As shown, the angle A1 between the central axis of the outlet of the spray pipe H and the walking direction of the pool cleaner can be 35°~45°. This setting ensures that the pool cleaner of this invention can stably adhere to the pool wall S2. The angle A2 between the central axis of the inlet of the spray pipe H and the walking direction of the pool cleaner can be 25°~35°. This ensures that the force of the water flow on the spray pipe can prevent the side of the pool cleaner near the water outlet of the spray pipe from tilting up when the pool cleaner moves in the opposite direction.

[0072] In an embodiment of this utility model, the drive control device E includes a first walking motor E1, a second walking motor E2, a water spray motor E3, a main control board E4, and a power supply battery E5. The main control board E4 is electrically connected to the first walking motor E1, the second walking motor E2, and the water spray motor E3, respectively. The power supply battery E5 is electrically connected to the main control board E4. The output shafts of the first walking motor E1 and the second walking motor E2 are respectively driven by the first walking device F and the second walking device G. The output shaft of the water spray motor E3 is driven by the water spray impeller C2 of the water spray device C. This configuration allows the pool cleaner of this utility model to be driven by electricity. It should be noted that the pool cleaner of this utility model can also be driven by water power.

[0073] In an embodiment of this utility model, the drive control device E further includes a drive control box E6, which is connected to the cleaner body A. The drive control box E6 has a closed electrical chamber E601. The first walking motor E1, the second walking motor E2, the water spray motor E3, the main control board E4, and the power supply battery E5 are all installed in the electrical chamber E601 to prevent damage to the first walking motor E1, the second walking motor E2, the water spray motor E3, the main control board E4, and the power supply battery E5 from water exposure. The drive control box E6 is provided with a first through hole E61, a second through hole E62, and a third through hole E63 corresponding to the output shafts of the first walking motor E1, the second walking motor E2, and the water spray motor E3, respectively, which communicate with the electrical chamber E601. The output shaft of the first walking motor E1 passes through the first through hole E61 and is driven by the first walking device F. The first through hole E61 is fitted with a first sealing element E61 that seals with the output shaft of the first walking motor E1. The output shaft of the second walking motor E2 passes through the second through hole E62 and the third through hole E63. A hole E62 protrudes and engages with the second traveling device G, and a second sealing element E62 is fitted in the second hole E62 to seal the output shaft of the second traveling motor E2. The output shaft of the water spray motor E3 protrudes from the third hole E63 and engages with the water spray device C, and a third sealing element E63 is fitted in the third hole E63 to seal the output shaft of the water spray motor E3. The arrangement of the first sealing element E61, the second sealing element E62, and the third sealing element E63 ensures the watertightness of the electrical chamber E601. In addition, a first bearing supporting the output shaft of the first traveling motor E1 can be fitted in the first hole E61. The first bearing allows the output shaft of the first traveling motor E1 to rotate smoothly and prevents deformation of the output shaft of the first traveling motor E1. Similarly, a second bearing supporting the output shaft of the second traveling motor E2 can be fitted in the second hole E62. The second bearing allows the output shaft of the second traveling motor E2 to rotate smoothly and prevents deformation of the output shaft of the second traveling motor E2. In addition, the water spray body C1 can be fixed on the drive control box E6, and the drive control box E6 is provided with a water passage E602 that connects the water inlet of the water spray body C1 and the clean water outlet B02 of the filter device B.

[0074] In an embodiment of this utility model, the drive control box E6 may be equipped with a control button E7 and a charging interface E8 electrically connected to the main control board E4. The control button E7 can be used to control whether the main control board E4 is working or not, and the charging interface E8 is used to connect an external power source to charge the power supply battery E5. The control button E7 is equipped with a button cap E71 to prevent water from entering the control button E7. The charging interface E8 is equipped with a sealing plug E81 to prevent water from entering the charging interface E8. The cleaner body A is provided with clearance openings A5 corresponding to the control button E7 and the charging interface E8, respectively.

[0075] In an embodiment of this utility model, the first walking device F may have a first drive wheel F1 rotatably engaged with the cleaner body A, and the first drive wheel F1 is provided with a first gear hole F11; the second walking device G has a second drive wheel G1 rotatably engaged with the cleaner body A, and the first drive wheel F1 is provided with a second gear hole G11; the output shaft of the first walking motor E1 and the output shaft of the second walking motor E2 are respectively engaged with the first output gear E11 and the second output gear E21, the first output gear E11 is inserted into the first gear hole F11 and is keyed to the first gear hole F11 so that the first walking motor E1 can drive the first drive wheel F1 to rotate, and the second output gear E21 is inserted into the second gear hole G11 and is keyed to the second gear hole G11 so that the second walking motor E2 can drive the second drive wheel G1 to rotate. The first output gear E11 is radially and axially clearance fitted with the first gear hole F11. This allows the first drive wheel F1 to move relative to the first output gear E11 when subjected to external force, thus preventing deformation of the output shaft of the first travel motor E1. Similarly, the second output gear E21 is radially and axially clearance fitted with the second gear hole G11. This allows the second drive wheel G1 to move relative to the second output gear E21 when subjected to external force, thus preventing deformation of the output shaft of the second travel motor E2.

[0076] In an embodiment of this utility model, a first limiting member L and a second limiting member M are respectively fixedly fitted on opposite sides of the cleaner body A. The first limiting member L forms a first limiting ring edge L1, and the second limiting member M forms a first limiting ring edge L1. The first drive wheel F1 is provided with a first limiting ring groove F12 for the first limiting ring edge L1 to be inserted. In this way, the first limiting member L prevents the first drive wheel F1 from falling off. The first limiting ring edge L1 and the first limiting ring groove F12 are in radial clearance fit and axial clearance fit to ensure that the first drive wheel F1 can rotate and move axially to a certain extent. The second drive wheel G1 is provided with a second limiting ring groove G12 for the second limiting ring edge M1 to be inserted. In this way, the second limiting member M prevents the second drive wheel G1 from falling off. The second limiting ring edge M1 and the second limiting ring groove G12 are in radial clearance fit and axial clearance fit to ensure that the second drive wheel G1 can rotate and move axially to a certain extent. The first drive wheel F1 can be assembled with at least two components to form a first limiting ring groove F12, which facilitates the first limiting ring of the first limiting member L to be inserted into the first limiting ring groove F12 along L1; the second drive wheel G1 can also be assembled with at least two components to form a second limiting ring groove G12, which facilitates the second limiting ring of the second limiting member M to be inserted into the second limiting ring groove G12 along M1.

[0077] In an embodiment of this utility model, the first walking device F further has a first driven wheel F2 rotatably engaged with the cleaner body A. The first driven wheel F2 is driven by a first driving wheel F1. The first driven wheel F2 can be driven by a gear transmission mechanism N to engage with the first driving wheel F1. The second walking device G further has a second driven wheel G2 rotatably engaged with the cleaner body A. The second driven wheel G2 is driven by a second driving wheel G1. The second driven wheel G2 can also be driven by a gear transmission mechanism N to engage with the second driving wheel G1. The first driven wheel F2 and the second driven wheel G2 can increase the stability of the pool cleaner when it is walking. When the pool cleaner of this utility model moves, the first driving motor E1 and the second driving motor E2 can drive the first driving wheel F1, the first driven wheel F2, the second driving wheel G1 and the second driven wheel G2 to rotate in the same direction, thereby making the pool cleaner move in a straight line; the first driving motor E1 and the second driving motor E2 can drive the first driving wheel F1 and the first driven wheel F2 to rotate in the opposite direction to the rotation direction of the second driving wheel G1 and the second driven wheel G2, thereby making the pool cleaner turn.

[0078] In an embodiment of this utility model, the cleaning device D includes at least one rotatable brush D1 mounted on the cleaner body A. Specifically, the cleaning device D may have two brushes D1, which are rotatably mounted on the bottom side of the cleaner body A. The two brushes D1 may be positioned on either side of the suction port B01 of the filter device B, so that the dirt cleaned by the brushes D1 can directly flow into the suction port B01 with the water flow.

[0079] In an embodiment of this utility model, the brush D1 of the cleaning device D is driven and coordinated with the drive control device E, so that the drive control device E drives the brush D1 to rotate, thereby enabling the brush D1 to better clean the dirt on the bottom S1 and the wall S2 of the pool. Specifically, one of the two brushes D1 of the cleaning device D and the first driven wheel F2 are driven and coordinated with the first driving wheel F1 through a gear transmission mechanism N; the other brush D1 of the two brushes D1 of the cleaning device D and the second driven wheel G2 are driven and coordinated with the second driving wheel G1 through another gear transmission mechanism N.

[0080] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A pool cleaner, characterized in that: It includes the cleaner body and the filter device, water spray device, cleaning device and drive control device installed on the cleaner body; The cleaner body is equipped with a first walking device and a second walking device on opposite sides respectively. The filter device is detachably fitted to the cleaner body, and the filter device has a suction port and a clean water port. The water inlet of the water spraying device is connected to the clean water outlet, and the water outlet of the water spraying device is connected to the spray pipe. The outlet of the spray pipe is inclined to the walking direction of the water tank cleaner. The drive control device is connected to the first walking device, the second walking device, and the water spraying device respectively.

2. The pool cleaner as described in claim 1, characterized in that: The injection pipe has a curved structure.

3. The pool cleaner as described in claim 1 or 2, characterized in that: The angle between the central axis of the outlet of the spray pipe and the direction of travel of the pool cleaner is 35°~45°.

4. The pool cleaner as described in claim 3, characterized in that: The angle between the central axis of the inlet of the spray pipe and the direction of travel of the pool cleaner is 25°~35°.

5. The pool cleaner as described in claim 1, characterized in that: The water spraying device includes a water spraying body and a water spraying impeller. The water spraying body is a hollow structure and is fixedly installed in the cleaner body. The two ends of the water spraying body are the water inlet and water outlet of the water spraying device, respectively. The water spraying impeller is rotatably installed in the water spraying body and is driven and controlled by the drive control device.

6. The pool cleaner as described in claim 1 or 5, characterized in that: The water outlet of the water spraying device is connected to the spray pipe through a shunting cover, and the shunting cover is equipped with shunting blades.

7. The pool cleaner as described in claim 1, characterized in that: The filtration device includes a detachable filter box and a filter element; the filter box is detachably fitted to the cleaner body, the filter box forms a filter chamber inside, the filter element is installed in the filter chamber and the filter element divides the filter chamber into a sewage chamber and a clean water chamber. The filter box is provided with at least one suction port communicating with the sewage chamber and at least one clean water port communicating with the clean water chamber. The suction port is equipped with a suction one-way valve plate to control the water flow into the sewage chamber in one direction.

8. The pool cleaner as described in claim 7, characterized in that: The filter box includes a base and a cover. One side of the base is hinged to the cover, and the other side of the base is fitted with a rotatable latch that hooks onto the other side of the cover. The filter element is sandwiched between the base and the cover.

9. The pool cleaner as described in claim 1, characterized in that: The filter device is inserted into the cleaner body. The cleaner body has a pick-up and drop-off port corresponding to the filter device. The cleaner body is equipped with a pick-up and drop-off cover that can be opened and closed and a locking component for locking the pick-up and drop-off cover. One side of the take-up cover is hinged to the cleaner body. The locking assembly includes a locking seat and a locking torsion spring. The locking seat is rotatably fitted to the cleaner body. The locking torsion spring is fitted between the locking seat and the cleaner body. The locking torsion spring is used to drive the locking seat against the inner wall of the other side of the take-up cover. The locking seat has a pressing part located outside the cleaner body.

10. The pool cleaner as described in claim 1, characterized in that: The drive control device includes a first travel motor, a second travel motor, a water spray motor, a main control board, and a power supply battery. The main control board is electrically connected to the first travel motor, the second travel motor, and the water spray motor, respectively. The power supply battery is electrically connected to the main control board. The output shafts of the first travel motor and the second travel motor are respectively connected to the first travel device and the second travel device for transmission. The output shaft of the water spray motor is connected to the water spray device for transmission.

11. The pool cleaner as described in claim 10, characterized in that: The first walking device has a first drive wheel that is rotatably engaged with the cleaner body, and the first drive wheel has a first gear hole; the second walking device has a second drive wheel that is rotatably engaged with the cleaner body, and the first drive wheel has a second gear hole; the output shafts of the first and second walking motors are respectively engaged with a first output gear and a second output gear, the first output gear is inserted into the first gear hole and keyed to the first gear hole, the first output gear has a radial clearance fit and an axial clearance fit with the first gear hole, the second output gear is inserted into the second gear hole and keyed to the second gear hole, the second output gear has a radial clearance fit and an axial clearance fit with the second gear hole.

12. The pool cleaner as described in claim 11, characterized in that: The cleaner body has a first limiting member and a second limiting member fixedly fitted on opposite sides. The first limiting member forms a first limiting ring edge, and the second limiting member forms a first limiting ring edge. The first drive wheel has a first limiting ring groove for the first limiting ring edge to be inserted into. The first limiting ring edge and the first limiting ring groove are in radial clearance fit and axial clearance fit. The second drive wheel has a second limiting ring groove for the second limiting ring edge to be inserted into. The second limiting ring edge and the second limiting ring groove are in radial clearance fit and axial clearance fit.

13. The pool cleaner as described in claim 11, characterized in that: The first walking device also has a first driven wheel that is rotatably engaged with the cleaner body, and the first driven wheel is driven by a first driving wheel; the second walking device also has a second driven wheel that is rotatably engaged with the cleaner body, and the second driven wheel is driven by a second driving wheel.

14. The pool cleaner as described in claim 10, characterized in that: The drive control device also has a drive control box, which is connected to the cleaner body. The drive control box has a closed electrical chamber, in which the first walking motor, the second walking motor, the water spray motor, the main control board and the power supply battery are all installed. The drive control box is provided with a first through hole, a second through hole, and a third through hole corresponding to the output shafts of the first travel motor, the second travel motor, and the water spray motor, respectively, which communicate with the electrical chamber. The output shaft of the first travel motor passes through the first through hole, and the first through hole is fitted with a first sealing element that seals with the output shaft of the first travel motor. The output shaft of the second travel motor passes through the second through hole, and the second through hole is fitted with a second sealing element that seals with the output shaft of the second travel motor. The output shaft of the water spray motor passes through the third through hole, and the third through hole is fitted with a third sealing element that seals with the output shaft of the water spray motor.

15. The pool cleaner as described in claim 14, characterized in that: The first through hole contains a first bearing that supports the output shaft of the first walking motor, and the second through hole contains a second bearing that supports the output shaft of the second walking motor.

16. The pool cleaner as described in claim 14, characterized in that: The drive control box is equipped with control buttons and a charging interface that are electrically connected to the main control board. The control buttons are equipped with button caps, and the charging interface is equipped with sealing plugs. The cleaner body is provided with clearance openings corresponding to the control buttons and the charging interface.

17. The pool cleaner as described in claim 1, characterized in that: The cleaning device includes at least one rotatable wheel brush mounted on the cleaner body, and the wheel brush is in transmission cooperation with the drive control device.

18. The pool cleaner as described in claim 15, characterized in that: The cleaning device has two brushes, which are located on either side of the suction port of the filter device.

19. The pool cleaner as described in claim 1, characterized in that: The cleaner body is provided with a drain outlet that is connected to the clean water inlet of the filter device, and the drain outlet is equipped with a drain one-way valve to control the water flow out of the drain outlet in one direction.

20. The pool cleaner as described in claim 19, characterized in that: The cleaner body has a handle on one side, and the drain outlet is located away from the handle.

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