Split type pool cleaning device

Abstract

The utility model discloses a split type pool cleaning device, include: tow boat, including the ship body and adsorption mechanism, adsorption mechanism is configured to adsorb on the pool inner wall, to make the ship body anchor on the pool inner wall, underwater scrubbing structure includes support, first propeller, rotary drive unit and a plurality of rotary brushes, rotary drive unit is configured to drive rotary brush rotates around its axis, and first propeller is configured to apply the thrust of compressing the pool inner wall to rotary brush, to make rotary brush with the state of compressing the pool inner wall scrubbing the pool inner wall, hoist mechanism is configured to winding tow rope, to make underwater scrubbing structure move up and down along the pool inner wall, this cleaning device adopts the split type structure of underwater scrubbing structure and tow boat, and carries convenient, after the lower end of tow rope is connected with support, can effectively remove the dirt and biological membrane of pool inner wall, improves scrubbing efficiency, realizes rotary brush edge scrubbing edge movement, and the cleaning ability to the vertical pool inner wall is strong.

Description

Technical Field

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

[0002] Drinking water tanks, also known as food water tanks or domestic water tanks in some areas, are facilities for storing daily drinking water. Many high-rise buildings are equipped with drinking water tanks on their rooftops. The inner walls of these tanks are usually lined with smooth ceramic tiles. Organic molecules in the water easily adhere to the surface of the tiles, making them slippery and creating conditions for the cultivation of microorganisms. The planktonic microorganisms in the water are then adsorbed onto the tile surface, using structures such as extracellular polysaccharides to adhere to the tiles. The extracellular polysaccharides act as glue, forming a protective mucus layer that fixes the microorganisms to the tile surface. This mucus layer is collectively called a biofilm.

[0003] Currently, the cleaning of drinking water tanks mainly relies on manual operation. This involves first turning off the water pump power and opening the drain outlet to allow the drinking water to drain naturally to the lowest level. Workers, wearing safety clothing and equipped with the required safety gear, then climb ladders to enter the tank for cleaning. They manually scrub away dirt and biofilm from the tank tiles using cleaning tools such as quick-drying cloths and brushes. Portable rechargeable cleaning brushes are also sometimes used. After cleaning, a high-pressure water jet rinse is applied for a more thorough cleaning. The wastewater is then drained away through the drain outlet, which also removes sediment and other impurities from the bottom of the tank. However, this manual operation method is inefficient, has high labor costs, a poor working environment, and requires a high level of expertise.

[0004] Currently, automated swimming pool cleaning robots are available on the market, primarily used for automatically cleaning dirt, debris, and algae from the bottom and walls of swimming pools. These robots move using high-friction tracks or wheels and have bristles or electrically driven rotating brushes on their bottoms to scrub loose dirt. Water is drawn in and collects debris through a bottom suction inlet. However, applying these automated swimming pool cleaning robots to drinking water pools presents certain challenges. These robots lack sufficient cleaning power and have limited ability to clean vertical surfaces, making it difficult to effectively remove biofilm from the inner walls of drinking water pools. Furthermore, when workers carry the cleaning robots to the entrance at the top of the pool, they often need to use vertical ladders to climb up; these robots are generally heavy and inconvenient to carry. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a water tank cleaning device, which has strong cleaning ability for vertical surfaces, high scrubbing efficiency, and is easy to carry.

[0006] A split-type pool cleaning device according to an embodiment of the present invention includes: a tugboat, comprising a hull and an adsorption mechanism mounted on the hull, the adsorption mechanism being configured to adsorb onto the inner wall of the pool so that the hull is anchored to the inner wall of the pool; an underwater scrubbing structure, comprising a bracket, a first thruster, a rotary drive unit, and a plurality of rotary brushes, the plurality of rotary brushes being evenly distributed on the front side of the bracket, the rotary drive unit being configured to drive the rotary brushes to rotate around their own axis, the first thruster being configured to apply a thrust to the rotary brushes to press against the inner wall of the pool so that the rotary brushes scrub the inner wall of the pool in a state of pressing against the inner wall of the pool; a winch mechanism and a traction rope, the winch mechanism being disposed on the hull, the upper end of the traction rope being connected to the winch mechanism, and the lower end being detachably connected to the bracket, the winch mechanism being configured to wind the traction rope so that the underwater scrubbing structure moves up and down along the inner wall of the pool.

[0007] It has at least the following beneficial effects: This cleaning device adopts a separate structure of underwater scrubbing structure and towing boat. After the lower end of the towing rope is detached from the support, the underwater scrubbing structure and towing boat can be transported separately and climbed to the entrance of the pool top, making it easy to carry. After the lower end of the towing rope is connected to the support, the underwater scrubbing structure is placed in the underwater environment. The rotary drive unit can drive the rotary brush to rotate around its own axis. The first thruster applies a thrust to the rotary brush to press against the inner wall of the pool, so that the rotary brush scrubs the inner wall of the pool in a state of pressing against the inner wall of the pool, which can effectively remove dirt and biofilm from the inner wall of the pool and improve scrubbing efficiency. The towing boat floats on the water surface and is anchored to the inner wall of the pool near the water surface by the adsorption mechanism. The winch mechanism on the towing boat moves the underwater scrubbing structure up and down along the inner wall of the pool by winding the towing rope, realizing that the rotary brush scrubs and moves at the same time, which has a strong cleaning ability for the vertical inner wall of the pool.

[0008] According to some embodiments of the present invention, four second propellers are installed at the lower end of the hull in a matrix arrangement, with the propulsion directions of two adjacent second propellers being perpendicular, and the second propellers being configured to drive the hull to move in the forward and backward and left and right directions.

[0009] According to some embodiments of the present invention, the adsorption mechanism includes a plurality of suction cups installed on the front side of the hull, the suction cups being able to adsorb or release the inner wall of the pool.

[0010] According to some embodiments of this utility model, a fixed pulley is rotatably connected to the hull, and the lower end of the traction rope passes around the fixed pulley and is connected to the bracket. When the adsorption mechanism is adsorbed onto the inner wall of the pool and the rotating brush is scrubbing the inner wall of the pool, the traction rope located between the fixed pulley and the bracket extends in the vertical direction.

[0011] According to some embodiments of this utility model, the underwater scrubbing structure further includes floating frames equal in number to the rotating brushes. Each floating frame is telescopically connected to the support in the front-to-back direction. An elastic element is provided between the floating frame and the support. The number of rotating drive units is equal to the number of rotating brushes. Multiple rotating drive units are installed one-to-one on multiple floating frames. Multiple rotating brushes are installed one-to-one on the drive ends of multiple rotating drive units. The first thruster is connected to the support. When the rotating brushes contact the inner wall of the pool, the elastic element can be compressed under the thrust of the first thruster.

[0012] According to some embodiments of the present invention, the underwater scrubbing structure further includes a positioning member, the rear end of which is connected to the bracket, and the front end of which has a stop portion. The stop portion is configured to abut against the inner wall of the pool. The position of the stop portion relative to the bracket in the front-rear direction is adjustable. The elastic member can be compressed to the position where the stop portion abuts against the inner wall of the pool under the thrust of the first thruster.

[0013] According to some embodiments of the present invention, the front end of the stop portion is provided with a ball bearing, which is configured to contact the inner wall of the pool and be able to roll relative to the inner wall of the pool.

[0014] According to some embodiments of the present invention, the rotating brush has a brush surface at one end of its axis away from the rotating drive unit. The extension direction of the brush surface is perpendicular to the axis of the rotating brush. The brush surface is configured to rotate around the axis of the rotating brush to scrub the inner wall of the water tank while pressing against it. The elastic element is a compression spring and multiple sets are arranged at intervals along the vertical and horizontal directions. A movable pin is provided on the floating frame, and a constraint groove extending along the front-back direction is provided on the support. The constraint groove allows the movable pin to be inserted and slides and rotates relative to each other within the constraint groove. When the brush surface contacts the inner wall of the water tank, the first pusher can drive the support to approach the inner wall of the water tank and cause the support and the floating frame to compress the elastic element. The movable pin slides relative to the constraint groove in the front-back direction.

[0015] According to some embodiments of the present invention, the number of the first propellers is equal to the number of the rotating brushes, and the plurality of first propellers are located on one side of the plurality of rotating brushes in a one-to-one correspondence. The water inlet end of the first propeller faces the inner wall of the water tank and is provided with a rectifier. The interior of the rectifier is provided with a water inlet channel extending in the front-to-back direction. The side wall of the rectifier near the rotating brush is provided with a side through hole, and the side through hole extends from the water inlet channel toward the rotating brush.

[0016] According to some embodiments of this utility model, four rotating brushes are provided, and the four rotating brushes are distributed in a matrix on the front side of the four corners of the support. The projection area of ​​the rotating brush on the inner wall of the pool at least partially protrudes beyond the outer edge of the projection area of ​​the support on the inner wall of the pool.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram showing the fit between the embodiment of this utility model and the inner wall of the pool; Figure 2 This is a rear view of the underwater scrubbing structure in an embodiment of this utility model; Figure 3 for Figure 1 The left view; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 for Figure 1 A schematic diagram of a partial structure; Figure 6 This is a schematic diagram illustrating the cooperation between the floating frame and the support in an embodiment of this utility model; Figure 7 This is a partial structural diagram of the underwater scrubbing structure in an embodiment of this utility model.

[0019] Reference numerals: 1. Tractor boat; 11. Hull; 12. Adsorption mechanism; 121. Suction cup; 13. Second thruster; 14. Fixed pulley; 2. Underwater scrubbing structure; 21. Bracket; 211. Constraint groove; 22. First thruster; 23. Rotary drive unit; 24. Rotary brush; 241. Brush surface; 25. Floating frame; 251. Movable pin; 26. Elastic element; 27. Positioning element; 27. Stopping part; 271. Ball bearing; 2711. Fixing part; 272. Fairing; 28. Water inlet channel; 281. Side perforation; 282. Pressure sensor; 29. ​​Winch mechanism; 3. Traction rope; 4. Inner wall of pool; 5. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 7 This utility model discloses a split-type water tank cleaning device, including a towing boat 1, an underwater scrubbing structure 2, a winch mechanism 3, and a towing rope 4.

[0024] Among them, reference Figure 1 and Figure 3 The traction vessel 1 includes a hull 11 and an adsorption mechanism 12. The adsorption mechanism 12 is installed on the hull 11 and configured to adsorb onto the inner wall 5 of the pool, so that the hull 11 is anchored to the inner wall 5 of the pool. It can be understood that the hull 11 can float on the water surface. The inner wall 5 of the pool is usually in a vertical or inclined state. For ease of description, this embodiment takes the inner wall 5 of the pool extending in the vertical and horizontal directions as an example.

[0025] Reference Figure 2 , Figure 3 and Figure 4 The underwater scrubbing structure 2 includes a support 21, a first thruster 22, a rotary drive unit 23, and multiple rotary brushes 24. The multiple rotary brushes 24 are evenly distributed on the front side of the support 21. The first thruster 22 and the rotary drive unit 23 are directly or indirectly disposed on the support 21. The rotary drive unit 23 is configured to drive the rotary brushes 24 to rotate around their own axis to achieve the scrubbing action. The first thruster 22 is configured to apply a thrust to the rotary brushes 24 to press against the inner wall 5 of the pool, so that the rotary brushes 24 scrub the inner wall 5 of the pool in a state of pressing against the inner wall 5.

[0026] It is understood that the rotary drive unit 23 can specifically be a motor or other rotary drive device, and multiple units can be set up to drive multiple rotary brushes 24 in a one-to-one correspondence, or only one unit can be set up to drive multiple rotary brushes 24 through a synchronous belt; the first thruster 22 can specifically be a propeller thruster, which generates water flow by rotating in the underwater environment, thereby providing thrust; the first thruster 22 can also be a pump-jet thruster or other thrusters that can provide thrust underwater.

[0027] Reference Figure 1 and Figure 3The winch mechanism 3 is mounted on the hull 11. The upper end of the traction rope 4 is connected to the winch mechanism 3, and the lower end is detachably connected to the bracket 21. The winch mechanism 3 is configured to wind the traction rope 4. When the winch mechanism 3 winds along the traction rope 4... Figure 3 When the clockwise rotation is shown to wind up the traction rope 4, the traction rope 4 pulls the support 21 upward, causing the underwater scrubbing structure 2 to move upward along the inner wall 5 of the pool; when the winch mechanism 3 moves along... Figure 3 When the underwater scrubbing structure 2 is rotated counterclockwise to unwind the traction rope 4, it moves downward along the inner wall 5 of the pool under the action of gravity, thereby realizing the hoisting mechanism 3 controlling the underwater scrubbing structure 2 to move up and down along the inner wall 5 of the pool.

[0028] This cleaning device adopts a separate structure of underwater scrubbing structure 2 and towing boat 1. After the lower end of the towing rope 4 is removed from the bracket 21, the underwater scrubbing structure 2 and towing boat 1 can be transported separately and climbed to the entrance of the pool top, making it easy to carry.

[0029] After the lower end of the traction rope 4 is connected to the bracket 21, refer to Figures 1 to 4 The underwater scrubbing structure 2 is placed in an underwater environment. The rotary drive unit 23 is activated, which drives the rotary brush 24 to rotate around its own axis. The first thruster 22 applies a thrust to the rotary brush 24 to press against the inner wall 5 of the pool, so that the rotary brush 24 scrubs the inner wall 5 of the pool while pressing against it. This can effectively remove dirt and biofilm from the inner wall 5 of the pool and improve scrubbing efficiency. The tractor 1 floats on the water surface and is anchored to the inner wall 5 of the pool near the water surface by the adsorption mechanism 12. The winch mechanism 3 on the tractor 1 moves the underwater scrubbing structure 2 up and down along the inner wall 5 of the pool by winding the traction rope 4, so that the rotary brush 24 can scrub and move at the same time, which has a strong cleaning ability for the vertical inner wall 5 of the pool.

[0030] It is understandable that one part of the rotating brush 24 rotates in the opposite direction to the other part of the rotating brush 24, which can form forces with different directions on the inner wall 5 of the pool. This allows the reaction forces formed by the inner wall 5 of the pool relative to the rotating brush 24 to cancel each other out, achieving torque balance. This ensures that the underwater scrubbing structure 2 can remain balanced underwater, which not only improves the stability of the underwater scrubbing structure 2, but also eliminates the need to consume additional energy to maintain the balance of the underwater scrubbing structure 2.

[0031] In some embodiments of this utility model, reference is made to Figure 1 and Figure 3 The lower end of the hull 11 is equipped with four second thrusters 13 arranged in a matrix. The thrusting directions of two adjacent second thrusters 13 are perpendicular. The second thrusters 13 are configured to drive the hull 11 to move in the forward and backward and left and right directions.

[0032] By selectively activating one or more of the four second thrusters 13, thrust can be applied to the hull 11 in different directions, enabling the hull 11 to move in multiple directions, allowing the tractor 1 to move to a suitable position, and then be attached to the inner wall 5 of the pool by the adsorption mechanism 12, thus achieving the purpose of anchoring.

[0033] Understandably, the second thruster 13 can specifically be a propeller thruster, which generates water flow by rotating in the underwater environment, thereby providing thrust; the second thruster 13 can also be a pump-jet thruster or other thrusters capable of providing thrust underwater.

[0034] In addition, the first thruster 22 can also push the support 21 forward, so that the underwater scrubbing structure 2 is close to the inner wall 5 of the pool, thereby making the rotating brush 24 contact the inner wall 5 of the pool.

[0035] In some embodiments, refer to Figure 1 , Figure 3 and Figure 4 The adsorption mechanism 12 includes multiple suction cups 121 installed on the front side of the hull 11. The suction cups 121 can adsorb or release the inner wall 5 of the pool. After the underwater scrubbing structure 2 completes the cleaning work on a part of the inner wall 5 of the pool, the first thruster 22 and the rotary drive unit 23 stop working. The suction cups 121 release and detach from the inner wall 5 of the pool. Under the action of the second thruster 13, the tractor 1 drives the underwater scrubbing structure 2 to move in the left and right direction. After reaching the next cleaning area, the suction cups 121 re-adsorb onto the inner wall 5 of the pool. Then the first thruster 22 and the rotary drive unit 23 are restarted to start the next stage of cleaning work.

[0036] In some embodiments, refer to Figure 1 and Figure 3 A fixed pulley 14 is rotatably connected to the hull 11. The lower end of the traction rope 4 passes around the fixed pulley 14 and is connected to the bracket 21. The fixed pulley 14 serves as a guide. When the adsorption mechanism 12 is adsorbed onto the inner wall 5 of the pool and the rotating brush 24 is scrubbing the inner wall 5 of the pool, the traction rope 4 located between the fixed pulley 14 and the bracket 21 extends in the vertical direction, which can effectively improve the lifting efficiency of the traction rope 4 and prevent the underwater scrubbing structure 2 from flipping up and down.

[0037] It should be noted that the rotating brush 24 can have soft or hard contact with the inner wall 5 of the pool. In some embodiments, the rotating brush 24 is elastically connected to the bracket 21, see reference. Figure 1 and Figure 5The underwater scrubbing structure 2 also includes floating frames 25 in the same number as the rotating brushes 24. Each floating frame 25 is telescopically connected to a support 21 in the front-to-back direction. An elastic element 26 is provided between the floating frame 25 and the support 21. The number of rotating drive units 23 is equal to the number of rotating brushes 24. Multiple rotating drive units 23 are installed on multiple floating frames 25 in a one-to-one correspondence. Multiple rotating brushes 24 are installed on the drive ends of multiple rotating drive units 23 in a one-to-one correspondence. The first thruster 22 is connected to the support 21. When the rotating brushes 24 contact the inner wall 5 of the pool, the elastic element 26 can improve the buffering effect, and the elastic element 26 can be compressed under the thrust of the first thruster 22.

[0038] Reference Figure 5 Specifically, when the rotating brush 24 contacts the inner wall 5 of the pool, the floating frame 25 is stopped and remains stationary by the inner wall 5 in the front-to-back direction. Under the thrust of the first pusher 22, the support 21 can move forward relative to the floating frame 25 and compress the elastic member 26. When the elastic member 26 is in a compressed state, it will apply elastic force to the floating frame 25, the rotating drive unit 23 and the rotating brush 24, thereby achieving soft contact between the rotating brush 24 and the inner wall 5 of the pool and reducing collision damage to the rotating brush 24 and the rotating drive unit 23.

[0039] In some embodiments, refer to Figure 1 , Figure 4 and Figure 5 The underwater scrubbing structure 2 also includes a positioning member 27. The rear end of the positioning member 27 is connected to the bracket 21, and the front end has a stop part 271. The stop part 271 is configured to abut against the inner wall 5 of the pool. The position of the stop part 271 relative to the bracket 21 in the front-back direction is adjustable, thereby realizing that the length of the positioning member 27 in the front-back direction is variable. The elastic member 26 can be compressed to the position where the stop part 271 abuts against the inner wall 5 of the pool under the thrust of the first pusher 22. When the stop part 271 abuts against the inner wall 5 of the pool, the elastic member 26 cannot be further compressed. At this time, the rotating brush 24 can scrub the inner wall 5 of the pool in a state of pressing against the inner wall 5 of the pool.

[0040] Since the scrubbing pressure of the rotating brush 24 on the inner wall 5 of the pool depends on the compression of the elastic element 26, the maximum compression of the elastic element 26 can be adjusted by adjusting the variable length of the positioning element 27 in the front-back direction according to actual needs, thereby adjusting the scrubbing pressure of the rotating brush 24 on the inner wall 5 of the pool. For the vertical inner wall 5 of the pool, sufficient cleaning power can be achieved, which can effectively remove dirt and biofilm from the inner wall of the pool.

[0041] In some embodiments, refer to Figure 4 and Figure 7The front end of the stop part 271 is provided with a ball 2711. The ball 2711 is configured to contact the inner wall 5 of the pool and be able to roll relative to the inner wall 5 of the pool. This allows the stop part 271 to move on the inner wall 5 of the pool even when it is against the stop, thereby reducing frictional damage between the stop part 271 and the inner wall 5 of the pool.

[0042] It is understood that the rear end of the positioning member 27 has a fixing part 272, which is connected to the bracket 21. The abutment part 271 is screwed to the fixing part 272. By twisting and rotating the abutment part 271, the abutment part 271 moves relative to the fixing part 272 in the front-back direction, so that the position of the abutment part 271 relative to the bracket 21 in the front-back direction is adjustable, and the length of the positioning member 27 in the front-back direction is variable, thereby adjusting the scrubbing pressure of the rotating brush 24 on the inner wall 5 of the pool.

[0043] In some embodiments, refer to Figures 4 to 6 The rotating brush 24 has a brush surface 241 at one end away from the rotating drive unit 23 on the axis. The extension direction of the brush surface 241 is perpendicular to the axis of the rotating brush 24. The brush surface 241 is configured to rotate around the axis of the rotating brush 24 in a state of pressing against the inner wall 5 of the water tank to scrub the inner wall 5 of the water tank.

[0044] It should be noted that, referring to Figure 5 From a macroscopic perspective, the inner wall 5 of the pool in the same area is a relatively smooth and flat plane. The axis of the rotating brush 24 is roughly perpendicular to the entire plane where the inner wall 5 of the pool is located. From a microscopic perspective, the surface of the tiles on the inner wall 5 of the pool may be uneven, and the inner wall 5 of the pool in some areas may be tilted relative to the front and back direction rather than being relatively perpendicular. However, the brush surface 241 is always pressed and flat against the inner wall 5 of the pool, which means that the axis of the rotating brush 24 does not necessarily extend in the front and back direction. Therefore, the telescopic connection between the floating frame 25 and the support 21 must not only allow the rotating brush 24 to extend and retract relative to the support 21 in the front and back direction, but also allow the axis of the rotating brush 24 to deviate from the front and back direction.

[0045] When the inner wall 5 of the pool is perpendicular to the front-back direction, refer to Figure 4 The brush surface 241 is always pressed and flat against the inner wall 5 of the pool. The extension direction of the brush surface 241 is perpendicular to the axis of the rotating brush 24. Therefore, the axis of the rotating brush 24 extends in the front-back direction. When the inner wall 5 of the pool is tilted relative to the front-back direction, the brush surface 241 is always pressed and flat against the inner wall 5 of the pool. The extension direction of the brush surface 241 is perpendicular to the axis of the rotating brush 24. The axis of the rotating brush 24 has an angle with the front-back direction, that is, the extension direction of the axis of the rotating brush 24 deviates from the front-back direction.

[0046] Reference Figure 6 and Figure 7The elastic element 26 is a compression spring and multiple sets are arranged at intervals along the vertical and horizontal directions. The elastic element 26 extends spirally in the front-back direction. The floating frame 25 is provided with a movable pin 251. The bracket 21 is provided with a constraint groove 211 extending in the front-back direction. The constraint groove 211 allows the movable pin 251 to be inserted and allows the movable pin 251 to slide and rotate relative to each other in the constraint groove 211. The floating frame 25 and the bracket 21 form a spherical pair within a certain range. The floating frame 25 can rotate relative to the bracket 21 in order to adapt to the state of the brush surface 241 adhering to the inner wall 5 of the pool.

[0047] When the brush surface 241 contacts the inner wall 5 of the pool, the first pusher 22 can drive the bracket 21 to approach the inner wall 5 of the pool, and cause the bracket 21 and the floating frame 25 to compress the elastic element 26, and the movable pin 251 slides relative to the constraint groove 211 in the front-back direction.

[0048] In some embodiments, refer to Figure 6 and Figure 7 To enable the floating frame 25 and the support 21 to form a spherical pair within a certain range, two sets of movable pins 251 are provided. The two sets of movable pins 251 are located at both ends of the floating frame 25 in the left-right direction, and the axis of the movable pins 251 extends in the left-right direction. The support 21 is provided with two sets of constraint grooves 211 at the positions corresponding to the two sets of movable pins 251. The two sets of movable pins 251 are respectively inserted into the two sets of constraint grooves 211. The floating frame 25 can rotate around the axis of the movable pins 251. The floating frame 25 can also rotate relative to the support 21 in the planes extending in the front-back direction and the left-right direction, so that the two sets of movable pins 251 form a height difference in the front-back direction, but do not disengage from the constraint grooves 211. Through the superposition of the above two rotations, the floating frame 25 and the support 21 can form a spherical pair within a certain range.

[0049] A pressure sensor 29 can be installed between the elastic element 26 and the bracket 21. The pressure sensor 29 can provide pressure data of each elastic element 26 so as to detect the scrubbing pressure of the rotating brush 24 on the inner wall 5 of the water tank and facilitate subsequent adjustment of the scrubbing pressure.

[0050] In some embodiments, refer to Figure 2 The number of first thrusters 22 is equal to the number of rotating brushes 24, and the multiple first thrusters 22 are located one-to-one on one side of the multiple rotating brushes 24, as shown in the figure. Figure 4 , Figure 5 and Figure 7The water inlet of the first thruster 22 faces the inner wall 5 of the pool and is provided with a shunting cover 28. The inside of the shunting cover 28 is provided with a water inlet channel 281 extending in the front-to-back direction. After the water is sucked into the water inlet channel 281, it is discharged backward away from the inner wall 5 of the pool, providing thrust for the first thruster 22. The shunting cover 28 can be relatively close to the inner wall 5 of the pool. Under the suction of the first thruster 22 and the shunting cover 28, some dirt can also be peeled off the inner wall 5 of the pool.

[0051] Considering that the fairing 28 and the rotating brush 24 correspond to different areas of the inner wall 5 of the upper water tank, the thrust applied by the first thruster 22 to the support 21 does not coincide with the axis of the rotating brush 24. (Refer to...) Figure 5 In this embodiment, a side perforation 282 is provided on the side wall of the shroud 28 near the rotating brush 24, extending from the water inlet channel toward the rotating brush 24. Under the suction of the first thruster 22 and the shroud 28, water will also enter the water inlet channel 281 through the side perforation 282, increasing the water intake near the rotating brush 24 and dispersing the suction to one side of the rotating brush 24. This makes it easier for the brush surface 241 to press against the inner wall 5 of the pool. Moreover, the dirt and biofilm that fall off after the brush surface 241 scrubs the inner wall 5 of the pool can be directly sucked into the water inlet channel 281 through the side perforation 282, quickly discharged, and moved away from the scrubbing area of ​​the inner wall 5 of the pool, improving the sewage discharge effect.

[0052] In some embodiments, refer to Figure 2 There are four rotating brushes 24 arranged in a matrix on the front side of the four corners of the bracket 21. The projection area of ​​the rotating brush 24 on the inner wall 5 of the water tank at least partially protrudes beyond the outer edge of the projection area of ​​the bracket 21 on the inner wall 5 of the water tank, so that the rotating brush 24 can directly clean the connecting corner area of ​​the inner wall 5 of the water tank, preventing the contact range of the rotating brush 24 from being blocked and interfered by the bracket 21, and avoiding the formation of cleaning blind spots.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A split-type water tank cleaning device, characterized in that, include: A tugboat includes a hull and an adsorption mechanism mounted on the hull, the adsorption mechanism being configured to adsorb onto the inner wall of a pool so that the hull is anchored to the inner wall of the pool. An underwater scrubbing structure includes a support, a first thruster, a rotary drive unit, and multiple rotary brushes. The multiple rotary brushes are evenly distributed on the front side of the support. The rotary drive unit is configured to drive the rotary brushes to rotate around their own axis. The first thruster is configured to apply a thrust to the rotary brushes to press against the inner wall of the pool, so that the rotary brushes scrub the inner wall of the pool in a state of pressing against the inner wall of the pool. A winch mechanism and a towing rope are provided. The winch mechanism is mounted on the hull. The upper end of the towing rope is connected to the winch mechanism, and the lower end is detachably connected to the support. The winch mechanism is configured to wind the towing rope so that the underwater scrubbing structure can move up and down along the inner wall of the pool.

2. The split-type water tank cleaning device according to claim 1, characterized in that, The lower end of the hull is equipped with four second propellers arranged in a matrix. The propulsion directions of two adjacent second propellers are perpendicular. The second propellers are configured to drive the hull to move in the forward and backward and left and right directions.

3. The split-type water tank cleaning device according to claim 1 or 2, characterized in that, The adsorption mechanism includes multiple suction cups installed on the front side of the hull, which are capable of adsorbing or releasing the inner wall of the pool.

4. The split-type water tank cleaning device according to claim 1, characterized in that, A fixed pulley is rotatably connected to the hull, and the lower end of the traction rope passes around the fixed pulley and is connected to the bracket. When the adsorption mechanism is adsorbed onto the inner wall of the pool and the rotating brush is scrubbing the inner wall of the pool, the traction rope located between the fixed pulley and the bracket extends in the vertical direction.

5. The split-type water tank cleaning device according to claim 1, characterized in that, The underwater scrubbing structure also includes floating frames equal in number to the rotating brushes. Each floating frame is telescopically connected to the support in the front-to-back direction. An elastic element is provided between the floating frame and the support. The number of rotating drive units is equal to the number of rotating brushes. Multiple rotating drive units are installed one-to-one on multiple floating frames. Multiple rotating brushes are installed one-to-one on the drive ends of multiple rotating drive units. The first thruster is connected to the support. When the rotating brushes contact the inner wall of the pool, the elastic element can be compressed under the thrust of the first thruster.

6. The split-type water tank cleaning device according to claim 5, characterized in that, The underwater scrubbing structure also includes a positioning component. The rear end of the positioning component is connected to the bracket, and the front end has a stop portion. The stop portion is configured to abut against the inner wall of the pool. The position of the stop portion relative to the bracket in the front-back direction is adjustable. The elastic element can be compressed to the position where the stop portion abuts against the inner wall of the pool under the thrust of the first thruster.

7. The split-type water tank cleaning device according to claim 6, characterized in that, The front end of the stop part is provided with a ball bearing, which is configured to contact the inner wall of the pool and be able to roll relative to the inner wall of the pool.

8. The split-type water tank cleaning device according to claim 6, characterized in that, The rotating brush has a brush surface at one end of its axis away from the rotating drive unit. The extension direction of the brush surface is perpendicular to the axis of the rotating brush. The brush surface is configured to rotate around the axis of the rotating brush to scrub the inner wall of the water tank while pressing against it. The elastic element is a compression spring and multiple sets are arranged at intervals along the vertical and horizontal directions. The floating frame is provided with a movable pin, and the support is provided with a constraint groove extending in the front-back direction. The constraint groove allows the movable pin to be inserted and slides and rotates relative to it within the constraint groove. When the brush surface contacts the inner wall of the water tank, the first pusher can drive the support to approach the inner wall of the water tank and cause the support and the floating frame to compress the elastic element. The movable pin slides relative to the constraint groove in the front-back direction.

9. The split-type water tank cleaning device according to claim 5, characterized in that, The number of the first propellers is equal to the number of the rotating brushes. The first propellers are located on one side of the rotating brushes in a one-to-one correspondence. The water inlet end of the first propeller faces the inner wall of the pool and is provided with a flow shroud. The flow shroud has a water inlet channel extending in the front-to-back direction. The side wall of the flow shroud near the rotating brush has a side through hole extending from the water inlet channel toward the rotating brush.

10. The split-type water tank cleaning device according to claim 1, characterized in that, The rotating brush is provided in four parts, and the four rotating brushes are distributed in a matrix on the front side of the four corners of the support. The projection area of ​​the rotating brush on the inner wall of the pool at least partially protrudes from the outer edge of the projection area of ​​the support on the inner wall of the pool.

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