Efficient pool bottom cleaning device

Abstract

The invention relates to an efficient pool bottom cleaning device which comprises a pump body, a water inlet pipe, a water outlet pipe and a suction head, a water outlet of the pump body is connected with the end of the water inlet pipe, the other end of the water inlet pipe is connected with the suction head, the water outlet end of the pump body is connected with the water outlet pipe, and the suction head comprises a horn head and a plurality of supporting pieces. The small opening end of the horn head is connected with the end of the water inlet pipe, the supporting piece is arranged at the large opening end of the horn head, and the supporting piece horizontally supports the large opening end of the horn head. The loudspeaker further comprises a connecting part which is connected with the loudspeaker head. According to the scheme, the trumpet head is moved to suck dirt at the bottom of the pool, the local part of the bottom of the pool can be cleaned, so that the bottom of the pool can be cleaned without completely pumping water in the pool, the bottom of the pool is convenient to clean, the efficiency is high, and the operation is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pool cleaning technology, in particular to a high-efficiency pool bottom cleaning device. BACKGROUND

[0002] The pool, fountain pool and other water storage pool usually need to clean the sewage on the pool bottom at regular intervals. The impurities, debris, dust and other dirt in the water usually deposit on the pool bottom. When cleaning, the pool water needs to be pumped out, and then the dirt on the pool bottom is cleaned. This cleaning method needs to consume a large amount of water, and the cleaning time is long, time-consuming and laborious. SUMMARY

[0003] In order to facilitate the cleaning of the dirt on the pool bottom, the present application provides a high-efficiency pool bottom cleaning device.

[0004] The present application provides a high-efficiency pool bottom cleaning device, which adopts the following technical scheme:

[0005] A high-efficiency pool bottom cleaning device, comprising a pump body, a water inlet pipe, a water outlet pipe and a suction head, the water outlet of the pump body is connected to the end of the water inlet pipe, the other end of the water inlet pipe is connected to the suction head, the water outlet end of the pump body is connected to the water outlet pipe, the suction head comprises a horn head and a plurality of supporting pieces, the small end of the horn head is connected to the end of the water inlet pipe, the supporting pieces are arranged at the large end of the horn head, and the supporting pieces horizontally support the large end of the horn head.

[0006] It also includes a connecting part, and the connecting part connects the horn head.

[0007] By adopting the above technical scheme, the dirt usually deposits on the pool bottom, and the water on the surface is relatively clean. When the device of the present application cleans the pool bottom, the worker holds the connecting part and presses the horn head on the pool bottom, the supporting pieces support the horn head to be horizontal, a gap is left between the horn head and the ground, the horn head increases the suction area, facilitates the cleaning of the impurities on the pool bottom, and the horn head is moved to the place where there is dirt on the pool bottom, the local dirt is sucked and cleaned, the sewage is discharged from the water outlet pipe after being sucked by the pump body, so that the pool bottom can be cleaned without pumping out all the water in the pool, the pool bottom is easy to clean, the efficiency is high, and the operation is simple.

[0008] Optionally, the horn head comprises a horn barrel and a filter part, the filter part comprises a filter barrel and a filter plate, one end of the filter barrel is connected to the horn barrel, the filter plate is fixed to the other end of the filter barrel, and filter grooves are arranged on the filter plate and the filter plate.

[0009] By adopting the above technical scheme, when the suction head is moved, the impurities on the pool bottom may float up, the filter grooves are arranged on the filter barrel and the filter plate, which facilitates the suction of the floating impurities, and the filter grooves filter out the impurities with large volume, so as not to easily cause the suction head to be blocked.

[0010] Optionally, a float may also be included, with the pump body disposed within the float.

[0011] By adopting the above technical solution, the float bladder floats on the water surface during use, making it convenient for the pump body to be changed at any time according to the suction position, thus facilitating use.

[0012] Optionally, the pump body is a submersible pump, the float is provided with a mounting groove in the middle, one end of the pump body is provided in the mounting groove, and the other end of the pump body is located underwater.

[0013] By adopting the above technical solution, the submersible pump can work underwater. The submersible pump is installed in the mounting groove, and the end of the submersible pump is located below the water level, which makes the submersible pump more stable and prevents it from tipping over. This ensures stable operation of the pump body. At the same time, the submersible pump is located underwater, which facilitates heat dissipation of the motor inside the submersible pump.

[0014] Optionally, it also includes a pool bottom drive mechanism, which includes a first drive component whose drive connection portion slides along a first direction and a second drive component whose drive connection portion slides along a second direction, wherein the first direction and the second direction are perpendicular to each other and are both horizontal.

[0015] By adopting the above technical solution, when it is necessary to clean the entire bottom of the pool, the first drive component and the second drive component drive the connecting part to slide on the horizontal plane, thereby automatically cleaning the entire bottom of the pool, which is more convenient.

[0016] Optionally, the first driving component includes two sets of first slide rails and a first slider slidably connected to the first slide rails. The first driving component also includes a first driving structure that drives the two first sliders to reciprocate.

[0017] By adopting the above technical solution, the two first driving mechanisms drive the two sets of first sliders to slide back and forth on the first slide rail, thereby achieving sliding in the first direction.

[0018] Optionally, the second drive assembly includes a second slide rail, a second slider slidably disposed on the second slide rail, and a second drive structure that drives the second slider to reciprocate. The two ends of the second slide rail are disposed on two first sliders. The top end of the connecting part is disposed on the second slider, and the bottom end of the connecting part extends to the bottom of the pool to connect to the suction head.

[0019] By adopting the above technical solution, the two first driving mechanisms drive the two sets of first sliders to slide back and forth on the first slide rail to achieve sliding in the first direction, and the second driving structure drives the second slider to slide back and forth along the second slide rail to achieve sliding of the connecting part on the horizontal plane.

[0020] Optionally, a bottom-sweeping mechanism is also included, which includes a toothed ring, bristles, an outer cover, and a gear assembly for driving the toothed ring to rotate. The toothed ring is coaxially rotatably mounted on the suction head, the bristles are mounted on the side wall of the toothed ring facing the ground, the outer cover covers the suction head and the toothed ring, and when the support is supported on the ground, the bristles are pressed against the ground, and there is a water inlet gap between the outer cover and the ground.

[0021] By adopting the above technical solution, the gear assembly drives the gear ring to rotate, and the brush bristles clean the bottom of the pool, causing the impurities adhering to the bottom of the pool to float in the water. Then, they are sucked away by the suction head. During suction, the water inlet gap between the outer cover and the ground allows water to enter the inner side of the outer cover from the outside. After cleaning, the impurities floating in the water are easily carried away by the water flow and are not easily leaked outside the outer cover.

[0022] Optionally, the gear assembly includes a rack, a drive gear, a first bevel gear, a second bevel gear, and an output gear; the rack is fixed to a second slide rail, the rack extends in the same direction as the second slide rail; the drive gear meshes with the rack; a transverse drive shaft is rotatably connected to the connecting part, one end of the drive shaft is connected to the drive gear, and the other end of the drive shaft is connected to the first bevel gear; a vertical output shaft is rotatably connected to the connecting part, the top end of the output shaft is connected to the second bevel gear, and the bottom end of the output shaft is connected to the output gear; the first bevel gear meshes with the second bevel gear; the output gear is located inside the outer cover and meshes with a gear ring.

[0023] By adopting the above technical solution, when the connecting part slides on the second slide rail, the driving gear rolls on the rack, and after being driven by the first bevel gear and the second bevel gear, the output shaft and the output gear rotate, thereby realizing that the output gear drives the gear ring to rotate. The gear assembly has a simple structure and does not require a driving source.

[0024] Optionally, the connecting part is provided with a mounting cavity, the first bevel gear and the second bevel gear are located in the mounting cavity, the driving shaft and the output shaft extend in the mounting cavity, and the top and bottom of the connecting part are provided with through holes for the driving shaft and the output shaft to pass through. The driving gear and the output gear are coaxially fixed to the ends of the driving shaft and the output shaft located outside the through holes.

[0025] By adopting the above technical solution, the first bevel gear and the second bevel gear are located in the mounting cavity, and the driving shaft and the output shaft extend in the mounting cavity, making the overall structure neat and the appearance more beautiful.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The proposed solution allows for localized cleaning of the pool bottom by moving the horn head to areas with dirt or debris, eliminating the need to completely drain the pool. This makes cleaning the pool bottom convenient, efficient, and easy to operate.

[0028] 2. The float floats on the water surface, and the pump body is set on the float, which allows the pump body to be changed at any time according to the suction position;

[0029] 3. The first and second drive components drive the connecting part to slide along the horizontal plane, facilitating automatic cleaning of the pool bottom;

[0030] 4. The brush cleans the bottom of the pool, causing the impurities adhering to the bottom to float in the water. Then, they are sucked away by the suction head. During suction, the water inlet gap between the outer cover and the ground allows water to enter the inner side of the outer cover from the outside. After cleaning, the impurities floating in the water are easily carried away by the water flow and are not easily leaked outside the outer cover. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Example 1. Figure 1 .

[0032] Figure 2 This is a schematic diagram of the overall structure of Example 1. Figure 2 This mainly showcases the structure of the suction head.

[0033] Figure 3 This is a diagram showing the overall structure of Example 2.

[0034] Figure 4 yes Figure 3 A magnified view of point A.

[0035] Figure 5 This is a structural diagram of Example 3.

[0036] Figure 6 yes Figure 5 Enlarged view of point B.

[0037] Figure 7 This is a partial view of Embodiment 3, mainly showing the structure of the gear assembly.

[0038] Explanation of reference numerals in the attached drawings: 1. Pump body; 11. Inlet pipe; 12. Outlet pipe; 2. Suction head; 21. Horn head; 211. Horn tube; 212. Filter section; 2121. Filter cylinder; 2122. Filter plate; 22. Support member; 3. Connecting part; 4. Float; 41. Mounting groove; 5. First drive assembly; 51. First slide rail; 52. First slider; 53. First drive structure; 531. First mounting bracket; 532. First synchronous pulley; 533. First synchronous belt; 534. First drive motor 6. Second drive assembly; 61. Second slide rail; 62. Second slider; 63. Second drive structure; 631. Second mounting bracket; 632. Second synchronous pulley; 633. Second synchronous belt; 634. Second drive motor; 7. Pool bottom sweeping mechanism; 71. Gear ring; 72. Brush bristles; 73. Outer cover; 74. Gear assembly; 741. Rack; 742. Drive gear; 743. First bevel gear; 744. Second bevel gear; 745. Output gear; 746. Drive shaft; 747. Output shaft. Detailed Implementation

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] Example 1

[0041] Embodiment 1 of this application discloses a high-efficiency pool bottom cleaning device. (Refer to...) Figure 1 and Figure 2 The high-efficiency pool bottom cleaning device includes a pump body 1, an inlet pipe 11, an outlet pipe 12, and a suction head 2. The outlet of the pump body 1 is connected to the end of the inlet pipe 11, the other end of the inlet pipe 11 is connected to the suction head 2, and the outlet of the pump body 1 is connected to the outlet pipe 12. The inlet pipe 11 and the outlet pipe 12 are flexible hoses, and their inner diameters are 10 cm.

[0042] The suction head 2 includes a horn head 21 and several support members 22. The small end of the horn head 21 is connected to the end of the water inlet pipe 11. The horn head 21 includes a horn tube 211 and a filter section 212. The filter section 212 includes a filter cylinder 2121 and a filter plate 2122. One end of the filter cylinder 2121 is connected to the horn tube 211, and the filter plate 2122 is fixed to the other end of the filter cylinder 2121. Filter grooves are provided on the filter plate 2122 and the filter plate 2122.

[0043] The support member 22 is located at the large opening end of the horn head 21 and at the bottom of the filter plate 2122. The support member 22 is a support column with a hemispherical bottom. The hemispherical surface is used to contact the bottom of the pool. The hemispherical surface reduces the contact area with the bottom of the pool, thus reducing resistance and facilitating the sliding of the suction head 2. The support column horizontally supports the large opening end of the horn head 21.

[0044] The outer wall of the horn head 21 is provided with a connecting part 3, which is a connecting rod. The end of the connecting rod is rotatably connected to the outer wall of the horn head 21, and the rotation axis of the connecting rod is in the horizontal direction. The connecting part 3 is used for workers to hold and drive the suction head 2 to move at the bottom of the pool.

[0045] The high-efficiency pool bottom cleaning device also includes a float 4, with a pump body 1 mounted on the float 4. A through-hole 41 is provided in the center of the float 4. The pump body 1 is a submersible pump; one end of the pump body 1 is fixed to the float 4 with bolts, and the other end is submerged in water. The submersible pump has good waterproof properties and can be used underwater. The submersible pump is installed in the center of the float 4, and its center is located below the float 4, making it less likely to tip over and maintaining its balance. The submersible pump can be purchased commercially.

[0046] The implementation principle of the high-efficiency pool bottom cleaning device in Embodiment 1 of this application is as follows: When it is necessary to clean the pool bottom, the submersible pump floats on the water surface through the float 4, and the worker holds the drive unit to move the suction head 2 along the pool bottom to clean most of the debris. This is usually used for cleaning fountain pools to keep the bottom of the fountain pool clean to a certain extent. The solution of this application can directly suck away most of the debris from the pool bottom without draining the water from the pool, saving water and achieving high cleaning efficiency.

[0047] Example 2

[0048] Reference Figure 3 The difference between this embodiment and embodiment 1 is that the bottom sewage cleaning device also includes a bottom driving mechanism. The bottom driving mechanism includes a first driving component 5 that slides along the first direction and a second driving component 6 that slides along the second direction. The first direction and the second direction are perpendicular to each other and are both horizontal.

[0049] Reference Figure 4 The first drive assembly 5 includes two sets of first slide rails 51 and first sliders 52 slidably connected to the first slide rails 51. The first drive assembly 5 also includes a first drive structure 53 that drives the two first sliders 52 to reciprocate. The first drive structure 53 is configured one-to-one with the first slide rail 51 and includes two first mounting brackets 531, two first synchronous pulleys 532, a first synchronous belt 533, and a first drive motor 534.

[0050] Two first mounting brackets 531 are fixed at both ends of the length direction of the first slide rail 51. Two first synchronous pulleys 532 are rotatably connected to the first mounting brackets 531 in a corresponding manner. A first drive motor 534 is fixed on the first mounting bracket 531 and drives one of the first synchronous pulleys 532 to rotate. A first synchronous belt 533 is tensioned and connected to the two first synchronous pulleys 532. The first synchronous belt 533 is fixed to the first slider 52, thereby driving the first slider 52 to slide.

[0051] Reference Figure 3 , Figure 4 The second drive assembly 6 includes a second slide rail 61, a second slider 62 slidably disposed on the second slide rail 61, and a second drive structure 63 that drives the second slider 62 to reciprocate. The two ends of the second slide rail 61 are fixed to two first sliders 52. The second drive structure 63 includes two second mounting brackets 631, two second synchronous pulleys 632, a second synchronous belt 633, and a second drive motor 634.

[0052] Two second mounting brackets 631 are fixed to both ends of the second slide rail 61 along its length, and two second synchronous pulleys 632 are rotatably connected to the second mounting brackets 631 in a corresponding manner. A second drive motor 634 is fixed to the second mounting bracket 631 and drives one of the second synchronous pulleys 632 to rotate. A second synchronous belt 633 is tensioned and connected to the two second synchronous pulleys 632, and the second synchronous belt 633 is fixed to the second slider 62, thereby driving the second slider 62 to slide.

[0053] Reference Figure 3 The top end of the connecting part 3 is fixed to the second slider 62, and the bottom end of the connecting part 3 extends to the bottom of the pool to connect and fix the suction head 2.

[0054] The high-efficiency pool bottom cleaning device also includes a controller (not shown in the figure). The controller connects two first drive motors 534 and a second drive motor 634 to the pump body 1. The first drive motors 534 and 634 are servo motors. The controller can be programmed to rotate forward and backward. The controller can also upload the outline of the pool to control the direction of the suction head 2, making it convenient to clean pools of different sizes. When not in use, the first drive assembly 5 and the second drive assembly 6 are covered with a shell (not shown in the figure) to prevent dust accumulation and ensure that the first slide rail 51 and the second slide rail 61 are not affected by mud and sand, thus ensuring smooth movement.

[0055] The implementation principle of Example 2 is as follows: During pool bottom cleaning, the first and second drive mechanisms operate under the control of the controller, driving the suction head 2 to move along the pool bottom, thus achieving automated pool bottom cleaning. During cleaning, the pump body 1 floats on the pool surface via the float 4. The top of the float 4 is lower than the bottom of the second slide rail 61, allowing the float 4 to pass through the bottom of the second slide rail 61. This prevents the float 4 from getting stuck on the connecting part 3 during automatic pool bottom cleaning.

[0056] Example 3

[0057] Reference Figure 5 , Figure 6The difference between this embodiment and Embodiment 2 is that the high-efficiency pool bottom cleaning device further includes a pool bottom sweeping mechanism 7. The pool bottom sweeping mechanism 7 includes a gear ring 71, bristles 72, an outer cover 73, and a gear assembly 74 that drives the gear ring 71 to rotate. The gear ring 71 is coaxially rotatably connected to the suction head 2. The bristles 72 are fixed to the side wall of the gear ring 71 facing the ground. The outer cover 73 covers the suction head 2 and the gear ring 71. When the support member 22 is supported on the ground, the bristles 72 are pressed tightly against the ground, and there is a water inlet gap between the outer cover 73 and the ground.

[0058] Reference Figure 7 The gear assembly 74 includes a rack 741, a drive gear 742, a first bevel gear 743, a second bevel gear 744, and an output gear 745. The rack 741 is fixed to the second slide rail 61, and the rack 741 extends in the same direction as the second slide rail 61, with its tooth surfaces facing upwards. The drive gear 742 meshes with the rack 741. A transverse drive shaft 746 is rotatably connected to the connecting part 3; one end of the drive shaft 746 is connected to the drive gear 742, and the other end is connected to the first bevel gear 743.

[0059] A vertical output shaft 747 is rotatably connected to the connecting part 3. The top end of the output shaft 747 is connected to a second bevel gear 744, and the bottom end of the output shaft 747 is connected to an output gear 745. The first bevel gear 743 meshes with the second bevel gear 744 to achieve transmission and steering. The output gear 745 is located inside the outer cover 73 and meshes with the gear ring 71.

[0060] The connecting part 3 has a mounting cavity, in which the first bevel gear 743 and the second bevel gear 744 are located. The drive shaft 746 and the output shaft 747 extend within the mounting cavity. The top and bottom of the connecting part 3 have through holes for the drive shaft 746 and the output shaft 747 to pass through. The drive gear 742 and the output gear 745 are coaxially fixed to the ends of the drive shaft 746 and the output shaft 747 located outside the through holes.

[0061] The implementation principle of Example 3 is as follows: When the second slider 62 slides on the second slide rail 61, the driving gear 742 rotates on the rack 741. After being driven by the first bevel gear 743 and the second bevel gear 744, it drives the output gear 745 to rotate, thereby driving the gear ring 71 to rotate. The brush bristles 72 brush the bottom of the pool, causing the impurities at the bottom of the pool to float in the water. The outer cover 73 limits the water with impurities inside the outer cover 73. When pumping water, the water can only enter the outer cover 73 from the outside and then enter the water inlet pipe 11, so that the cleaned impurities are not likely to cause secondary pollution to the water.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency pool bottom cleaning device, comprising a pump body (1), an inlet pipe (11), an outlet pipe (12), and a suction head (2), wherein the outlet of the pump body (1) is connected to the end of the inlet pipe (11), the other end of the inlet pipe (11) is connected to the suction head (2), and the outlet of the pump body (1) is connected to the outlet pipe (12), characterized in that: The suction head (2) includes a horn head (21) and several support members (22). The small end of the horn head (21) is connected to the end of the water inlet pipe (11). The support members (22) are located at the large end of the horn head (21) and support the large end of the horn head (21) horizontally. It also includes a connecting part (3), which is connected to the horn head (21).

2. The high-efficiency pool bottom cleaning device according to claim 1, characterized in that: The horn head (21) includes a horn tube (211) and a filter section (212). The filter section (212) includes a filter tube (2121) and a filter plate (2122). One end of the filter tube (2121) is connected to the horn tube (211), and the filter plate (2122) is fixed to the other end of the filter tube (2121). The filter plate (2122) and the filter plate (2122) are provided with filter grooves. The support member (22) is provided on the filter plate (2122).

3. The high-efficiency pool bottom cleaning device according to claim 1, characterized in that: It also includes a float (4), and the pump body (1) is disposed on the float (4).

4. The high-efficiency pool bottom cleaning device according to claim 3, characterized in that: The pump body (1) is a submersible pump. The float (4) has an installation groove (41) in the middle. One end of the pump body (1) is located in the installation groove (41), and the other end of the pump body (1) is underwater.

5. The high-efficiency pool bottom cleaning device according to claim 1, characterized in that: It also includes a pool bottom drive mechanism, which includes a first drive assembly (5) in which the drive connection part (3) slides along a first direction and a second drive assembly (6) in which the drive connection part (3) slides along a second direction, wherein the first direction and the second direction are perpendicular to each other and are both horizontal.

6. The high-efficiency pool bottom cleaning device according to claim 5, characterized in that: The first drive assembly (5) includes two sets of first slide rails (51) and a first slider (52) slidably connected to the first slide rails (51). The first drive assembly (5) also includes a first drive structure (53) that drives the two first sliders (52) to slide back and forth.

7. The high-efficiency pool bottom cleaning device according to claim 6, characterized in that: The second drive assembly (6) includes a second slide rail (61), a second slider (62) slidably disposed on the second slide rail (61), and a second drive structure (63) that drives the second slider (62) to slide back and forth. The two ends of the second slide rail (61) are disposed on two first sliders (52). The top end of the connecting part (3) is disposed on the second slider (62), and the bottom end of the connecting part (3) extends to the bottom of the pool to connect to the suction head (2).

8. The high-efficiency pool bottom cleaning device according to claim 7, characterized in that: It also includes a bottom cleaning mechanism (7), which includes a gear ring (71), bristles (72), an outer cover (73), and a gear assembly (74) for driving the gear ring (71) to rotate. The gear ring (71) is coaxially rotatably mounted on the suction head (2). The bristles (72) are mounted on the side wall of the gear ring (71) facing the ground. The outer cover (73) covers the suction head (2) and the gear ring (71). When the support member (22) is supported on the ground, the bristles (72) are pressed against the ground. There is a water inlet gap between the outer cover (73) and the ground.

9. The high-efficiency pool bottom cleaning device according to claim 8, characterized in that: The gear assembly (74) includes a rack (741), a drive gear (742), a first bevel gear (743), a second bevel gear (744), and an output gear (745). The rack (741) is fixed to the second slide rail (61), and the rack (741) extends in the same direction as the second slide rail (61). The drive gear (742) meshes with the rack (741). A transverse drive shaft (746) is rotatably connected to the connecting part (3), and one end of the drive shaft (746) is connected to the drive gear. The wheel (742) is connected to the first bevel gear (743) at the other end of the drive shaft (746). A vertical output shaft (747) is rotatably connected to the connecting part (3). The top end of the output shaft (747) is connected to the second bevel gear (744), and the bottom end of the output shaft (747) is connected to the output gear (745). The first bevel gear (743) meshes with the second bevel gear (744). The output gear (745) is located inside the outer cover (73) and meshes with the gear ring (71).

10. The high-efficiency pool bottom cleaning device according to claim 9, characterized in that: The connecting part (3) is provided with an installation cavity, the first bevel gear (743) and the second bevel gear (744) are located in the installation cavity, the driving shaft (746) and the output shaft (747) extend in the installation cavity, the top and bottom of the connecting part (3) are provided with through holes for the driving shaft (746) and the output shaft (747) to pass through, and the driving gear (742) and the output gear (745) are coaxially fixed to the ends of the driving shaft (746) and the output shaft (747) located outside the through holes.

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