An electrically driven vehicle type cleaning vehicle capable of spraying water on the ground for disinfection

Abstract

The application relates to the technical field of sanitation equipment, in particular to an electric vehicle type cleaning vehicle capable of watering and disinfecting the ground. The electric vehicle type cleaning vehicle comprises a vehicle frame, the upper surface of the vehicle frame is fixedly connected with a bottom plate, the upper surface of the bottom plate is fixedly connected with a water storage tank, the outside of the water storage tank is provided with a water pumping tank, the outer surface of the water pumping tank is fixedly connected with a blocking device, the outer surface of the blocking device is fixedly connected with a water pumping pump, the lower surface of the water pumping pump is fixedly connected with a heating tank, the outer surface of the heating tank is slidably connected with an extension device, the upper surface of the bottom plate is fixedly connected with the lower surface of the water pumping tank, the lower surface of the bottom plate is fixedly connected with the upper surface of the heating tank, the blocking device comprises a positioning column, the outer surface of the positioning column is fixedly connected with a blocking plate, and the outer surface of the blocking plate is fixedly connected with a fixed plate; through the extension device, the watering and disinfecting range of the extended cleaning vehicle is expanded, so that the roads on both sides of the electric type cleaning vehicle can also be watered and disinfected, and the purpose of increasing the watering range of the cleaning vehicle is achieved.

Description

Technical Field

[0001] This invention relates to the field of sanitation equipment technology, specifically to an electric cleaning vehicle capable of spraying water to disinfect the ground. Background Technology

[0002] The sweeper truck is a type of road sweeping and cleaning vehicle. It features multiple functions including road cleaning, curb and curbstone washing, low-pressure flushing, and dust suppression spraying, with various operating modes available. For road sweeping or cleaning operations, the sweeping mode can be selected. For dust suppression spraying, the spray device can be activated. It can also perform low-pressure flushing of the road surface, similar to a water truck.

[0003] In the existing technology, traditional cleaning and sanitation vehicles are mostly large vehicles carrying water tanks and other water spraying devices to clean the road surface. For narrow streets, because these cleaning vehicles are wide, they cannot drive on narrow streets. Although existing electric cleaning vehicles can drive on streets, their own cleaning and watering functions are limited. They can only be used on the roads that the vehicles have driven on and cannot spray water to disinfect the edge areas on both sides of the road. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is as follows: an electric cleaning vehicle capable of spraying water for disinfection, comprising a frame, a base plate fixedly connected to the upper surface of the frame, a water storage tank fixedly connected to the upper surface of the base plate, a pumping tank disposed outside the water storage tank, a blocking device fixedly connected to the outer surface of the pumping tank, a pumping pump fixedly connected to the outer surface of the blocking device, a heating box fixedly connected to the lower surface of the pumping pump, a telescopic device slidably connected to the outer surface of the heating box, the upper surface of the base plate fixedly connected to the lower surface of the pumping tank, and the lower surface of the base plate fixedly connected to the upper surface of the heating box. The heating box heats the disinfection mixture, thereby improving the disinfection effect of the aqueous solution before spraying it through a water outlet pipe and fixed nozzles to complete the water spraying disinfection operation.

[0005] Preferably, the blocking device includes a positioning post, a blocking plate fixedly connected to the outer surface of the positioning post, a fixing plate fixedly connected to the outer surface of the blocking plate, a first sliding plate slidably connected to the fixing plate near the outer surface of the water storage tank, a second sliding plate slidably connected to the first sliding plate near the outer surface of the water storage tank, a buoyancy plate fixedly connected to the upper surface of the second sliding plate, a scraping device rotatably connected to the outer surface of the buoyancy plate, a friction device rotatably connected to the inner surface of the buoyancy plate, a lower surface of the positioning post fixedly connected to the upper surface of the base plate, an outer surface of the first sliding plate slidably connected to the outer surface of the blocking plate, and an outer surface of the second sliding plate slidably connected to the outer surface of the blocking plate. The blocking device creates a water level difference between the water storage tank and the pumping tank. Water at the higher water level in the water storage tank enters the pumping tank through the descending blocking device, causing water flow in the pumping tank, which helps dissolve the solid disinfectant.

[0006] Preferably, the scraping device includes a rotating column with a rotating hole in its wall, a scraping strip fixedly connected to the outer surface of the rotating column, and the inner surface of the rotating column rotatably connected to the outer surface of the buoyancy plate through the rotating hole. The friction device includes a rotating shaft with an inclined elastic plate fixedly connected to its outer surface, and the outer surface of the rotating shaft rotatably connected to the inner surface of the buoyancy plate. By setting up the scraping device and the friction device, the scale is cleaned by friction, and the scraping device and the friction device achieve the effect of removing internal scale.

[0007] Preferably, the telescopic device includes a motor, the output end of which is fixedly connected to a lead screw. A sliding water tank is engaged with the outer surface of the lead screw. A fixed water pipe is slidably connected to the inner surface of the sliding water tank. An outlet pipe is provided outside the fixed water pipe. A fixed nozzle is fixedly connected to the lower surface of the outlet pipe. A spraying device is provided outside the fixed nozzle. The upper surface of the motor is fixedly connected to the lower surface of the base plate. The outer surface of the sliding water tank is slidably connected to the outer surface of the heating box. The telescopic device completes the operation of cleaning its own path and cleaning both sides of the path.

[0008] Preferably, the spraying device includes a rotating ring with a water inlet groove in its wall, a fixed ring fixedly connected to the lower surface of the rotating ring, an annular groove in the wall of the fixed ring, a spray ring fixedly connected to the lower surface of the fixed ring, a water mist device rotatably connected to the inner surface of the spray ring, and the outer surface of the rotating ring rotatably connected to the inner wall of the sliding water tank. The water mist device includes a rotating ball with a circular ring fixedly connected to its outer surface. A water inlet is formed in the wall of the rotating ball, and the outer surface of the circular ring rotatably connects to the inner surface of the spray ring. The downward-sprayed water stream is refined into a water mist, which is then selectively sprayed onto the ground to further increase the spraying area of ​​the bottom aqueous solution.

[0009] The beneficial effects of this invention are as follows:

[0010] 1. This invention expands the disinfection range by setting up a telescopic device. During the path traveled by the cleaning vehicle, the heating box heats the disinfection mixture to improve the disinfection effect of the aqueous solution before spraying it through the water outlet pipe and fixed nozzle to complete the water spraying disinfection operation. The telescopic device, in conjunction with the fixed nozzle, completes the cleaning of the path it travels and can also clean the sides of the path.

[0011] 2. By setting up a spraying device and a water mist device, and cooperating with a telescopic device, the present invention increases the area of ​​disinfection spraying on the side. At the same time, the water jet sprayed downwards is refined into water mist, which increases the disinfection spraying area on the ground below. The circular ring will convert the force on the inlet into rotational force after the water solution enters the inlet, and selectively spray the refined water mist onto the ground, further increasing the spraying area of ​​the water solution at the bottom.

[0012] 3. This invention, by setting up a blocking device, divides the water tank into two areas: a storage tank and a pumping tank, with positioning posts and blocking plates on the vehicle frame. The water-filled storage tank can provide a buffer in the event of a rear-end collision, preventing the water spraying function from malfunctioning due to damage to the pump after the collision. Solid disinfectant is placed in the pumping tank, and the blocking device creates a water level difference between the storage tank and the pumping tank. Water at the higher water level in the storage tank enters the pumping tank through the descending blocking device, causing water flow in the pumping tank. The flowing water facilitates the dissolution of the solid disinfectant, resulting in a higher degree of dissolution and a more effective sprayed disinfectant solution.

[0013] 4. By incorporating a scraping device and a friction device, the scraping strip scrapes against the inside of the water tank as the buoyancy plate and rotating column move up and down, thus removing scale. Similarly, the friction device, driven by the inclined elastic plate, rotates the shaft. During the rotation of the shaft, the inclined elastic plate rubs and cleans the scale. The scraping device and the friction device achieve the effect of removing internal scale. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure on the base plate of the present invention;

[0017] Figure 4 This is a schematic diagram of the blocking device of the present invention;

[0018] Figure 5 This is a schematic diagram of the scraping device of the present invention;

[0019] Figure 6 This is a schematic diagram of the friction device of the present invention;

[0020] Figure 7 This is a schematic diagram of the telescopic device of the present invention;

[0021] Figure 8 This is a schematic diagram of the spraying device of the present invention;

[0022] Figure 9 This is a schematic diagram of the water mist device of the present invention.

[0023] In the diagram: 1. Frame; 2. Floor plate; 3. Water tank; 4. Pumping tank; 5. Blocking device; 6. Water pump; 7. Heating box; 8. Telescopic device; 51. Positioning post; 52. Blocking plate; 53. Fixing plate; 54. First sliding plate; 55. Second sliding plate; 56. Buoyancy plate; 57. Scratching device; 58. Friction device; 571. Rotating post; 572. Rotating hole; 573. Scratching strip; 581. Rotating shaft; 582, inclined elastic plate; 81, motor; 82, lead screw; 83, sliding water tank; 84, fixed water pipe; 85, water outlet pipe; 86, fixed nozzle; 87, spraying device; 871, rotating ring; 872, water inlet trough; 873, fixed ring; 874, annular groove; 875, water spray ring; 876, water mist device; 8761, rotating ball; 8762, circular ring; 8763, water inlet. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0025] Example: Please refer to Figure 1 - Figure 9This invention provides a technical solution: an electric cleaning vehicle capable of spraying water and disinfecting the ground, comprising a frame 1, a base plate 2 fixedly connected to the upper surface of the frame 1, a water storage tank 3 fixedly connected to the upper surface of the base plate 2, a water pumping tank 4 disposed outside the water storage tank 3, a blocking device 5 fixedly connected to the outer surface of the water pumping tank 4, a water pump 6 fixedly connected to the outer surface of the blocking device 5, a heating box 7 fixedly connected to the lower surface of the water pump 6, and a telescopic device 8 slidably connected to the outer surface of the heating box 7. The surface of the bottom plate 2 is fixedly connected to the lower surface of the water tank 4, and the lower surface of the bottom plate 2 is fixedly connected to the upper surface of the heating box 7. The positioning column 51 and the baffle plate 52 on the frame 1 divide the water tank into two areas, namely the water storage tank 3 and the water pump 4. The water pump 4 is set in the middle of the cleaning vehicle to prevent damage to the water pump 6 and the heating box 7 inside the tank when the cleaning vehicle is rear-ended. The water storage tank 3, which is filled with water, can provide a buffer in the event of a rear-end collision, and avoid the water pump 6 being damaged after a rear-end collision, which would prevent the water spraying function from being used normally.

[0026] The blocking device 5 includes a positioning post 51, a blocking plate 52 fixedly connected to the outer surface of the positioning post 51, a fixing plate 53 fixedly connected to the outer surface of the blocking plate 52, a first sliding plate 54 slidably connected to the fixing plate 53 near the outer surface of the water storage tank 3, a second sliding plate 55 slidably connected to the first sliding plate 54 near the outer surface of the water storage tank 3, a buoyancy plate 56 fixedly connected to the upper surface of the second sliding plate 55, a scraping device 57 rotatably connected to the outer surface of the buoyancy plate 56, and a friction device 58 rotatably connected to the inner surface of the buoyancy plate 56. The lower surface of the positioning post 51 is connected to the upper surface of the base plate 2. The first sliding plate 54 is slidably connected to the outer surface of the baffle plate 52, and the second sliding plate 55 is slidably connected to the outer surface of the baffle plate 52. Under the action of the water pump 6, the water level in the pumping tank 4 drops rapidly. At the same time as the water level drops, the buoyancy plate 56 drops synchronously due to its own weight, so that the baffle device 5 no longer blocks. There is a water level difference between the storage tank 3 and the pumping tank 4. The water at the high water level in the storage tank 3 enters the pumping tank 4 through the descending baffle device 5, so that the water in the pumping tank 4 flows. The flowing water is conducive to dissolving the solid disinfectant.

[0027] The scraping device 57 includes a rotating column 571 with a rotating hole 572 in its wall. A scraping strip 573 is fixedly connected to the outer surface of the rotating column 571. The inner surface of the rotating column 571 is rotatably connected to the outer surface of the buoyancy plate 56 through the rotating hole 572. The friction device 58 includes a rotating shaft 581 with an inclined elastic plate 582 fixedly connected to its outer surface. The outer surface of the rotating shaft 581 is rotatably connected to the inner surface of the buoyancy plate 56. The rotating column 571 has partial buoyancy. This allows it to swing up and down on the water surface. The rotating column 571 drives the scraping strip 573 to rotate. Since the inclined surface of the scraping strip 573 is in contact with the inside of the water tank 4, the scraping strip 573 will scrape the inside of the water tank 3 during the up and down movement of the buoyancy plate 56 and the rotating column 571, thereby scraping off the scale. Similarly, the friction device 58 is driven by the inclined elastic plate 582, and the rotating shaft 581 rotates. During the rotation of the rotating shaft 581, the inclined elastic plate 582 will rub and clean the scale.

[0028] The telescopic device 8 includes a motor 81, with a lead screw 82 fixedly connected to the output end of the motor 81. A sliding water tank 83 is engaged with the outer surface of the lead screw 82. A fixed water pipe 84 is slidably connected to the inner surface of the sliding water tank 83. An outlet pipe 85 is provided outside the fixed water pipe 84. A fixed nozzle 86 is fixedly connected to the lower surface of the outlet pipe 85. A spraying device 87 is provided outside the fixed nozzle 86. The upper surface of the motor 81 is fixedly connected to the lower surface of the base plate 2. The outer surface of the sliding water tank 83 is slidably connected to the outer surface of the heating box 7. The motor 81 drives the lead screw 82 to rotate, and the rotating lead screw 82 drives the engaged sliding water tank 83. Since the sliding water tank 83 slides on the heating box 7 and the base plate 2, and the spiral directions of the lead screws 82 at both ends of the motor 81 are opposite, the sliding water tank 83 can extend and retract under the control of the motor 81.

[0029] The spraying device 87 includes a rotating ring 871, with a water inlet groove 872 formed in the wall of the rotating ring 871. A fixed ring 873 is fixedly connected to the lower surface of the rotating ring 871, and an annular groove 874 is formed in the wall of the fixed ring 873. A water spray ring 875 is fixedly connected to the lower surface of the fixed ring 873. A water mist device 876 is rotatably connected to the inner surface of the water spray ring 875. The outer surface of the rotating ring 871 is rotatably connected to the inner wall of the sliding water tank 83. The water mist device 876 includes a rotating ball 8761, with a circular ring 8762 fixedly connected to the outer surface of the rotating ball 8761. A water inlet groove is formed in the wall of the rotating ball 8761. The outer surface of the circular ring 8762 is rotatably connected to the inner surface of the spray ring 875. The aqueous solution is sent into the sliding water tank 83 through the fixed water pipe 84. The aqueous solution is sent into the annular groove 874 in the fixed ring 873 through the water inlet groove 872 on the rotating ring 871. The annular groove 874, which is downward in shape, is driven to rotate due to the impact of the aqueous solution and the centrifugal force brought by the water flow. This drives the rotating ring 871 and the spray ring 875 to rotate. Due to the centrifugal force brought by the rotation, the spray ring 875 sprays the internal aqueous solution through the side. With the help of the telescopic device 8, the area of ​​disinfection spraying is increased on the side.

[0030] Working principle:

[0031] In use, a telescopic device 8 is installed. When in use, the motor 81 is started, and the motor 81 drives the lead screw 82 to rotate. The rotating lead screw 82 drives the engaged sliding water tank 83. Since the sliding water tank 83 slides on the heating box 7 and the base plate 2, and the spiral directions of the lead screws 82 at both ends of the motor 81 are opposite, the sliding water tank 83 can extend and retract under the control of the motor 81. Because a fixed water pipe 84 is provided, even if the extended part of the sliding water tank 83 is not under the base plate 2, the fixed water pipe 84 can still be inserted into the sliding water tank 83. As the sliding water tank 83 extends and moves, it forces the spraying device 87 to move, thereby expanding the disinfection range. During the path traveled by the cleaning vehicle, the heating box 7 heats the disinfection mixture to improve the disinfection effect of the aqueous solution before spraying it through the water outlet pipe 85 and the fixed nozzle 86 to complete the water spraying disinfection operation. The telescopic device 8, in conjunction with the fixed nozzle 86, completes the cleaning of the path it travels and can also clean the sides of the path.

[0032] A spraying device 87 and a water mist device 876 are installed. After the aqueous solution is heated in the heating box 7, it is sent into the sliding water tank 83 through the fixed water pipe 84. The aqueous solution is sent into the annular groove 874 in the fixed ring 873 through the water inlet groove 872 on the rotating ring 871. The downward-facing annular groove 874 is driven to rotate by the impact of the aqueous solution and the centrifugal force brought by the water flow, thereby driving the rotating ring 871 and the spray ring 875 to rotate. The centrifugal force brought by the rotation of the spray ring 875 sprays the internal aqueous solution through the side. The spray, in conjunction with the telescopic device 8, increases the area of ​​disinfectant spraying on the side. At the same time, the aqueous solution passes through the inlet 8763 on the rotating ball 8761. There are also outlets below the inlet 8763, but there are more outlets and the diameters are smaller. The downward sprayed water is refined into water mist, which increases the disinfection spraying area of ​​the ground below. The circular ring 8762 will convert the force on the inlet into rotational force after the aqueous solution enters the inlet 8763, and selectively spray the refined water mist onto the ground, further increasing the spraying area of ​​the aqueous solution at the bottom.

[0033] A blocking device 5 is installed. The positioning post 51 and the blocking plate 52 on the frame 1 divide the water tank into two areas: the storage tank 3 and the pumping tank 4. The pumping tank 4 is located in the middle of the cleaning vehicle to prevent damage to the pumping pump 6 and heating tank 7 inside the tank when the cleaning vehicle is rear-ended. The water-filled storage tank 3 can provide a buffer in the event of a rear-end collision, preventing the water spraying function from being unable to function properly due to damage to the pumping pump 6. Solid disinfectant is placed in the pumping tank 4. Under the action of the pumping pump 6, the water level in the pumping tank 4 drops rapidly. At the same time as the water level drops, the buoyancy plate 56 drops synchronously due to its own weight, so that the blocking device 5 no longer blocks the flow. There is a water level difference between the storage tank 3 and the pumping tank 4. The water at the higher water level in the storage tank 3 enters the pumping tank 4 through the descending blocking device 5, causing water flow in the pumping tank 4. The flowing water is conducive to dissolving the solid disinfectant. Due to the higher degree of dissolution, the sprayed disinfectant solution is more effective.

[0034] The system includes a scraping device 57 and a friction device 58. After the blocking device 5 descends, water in the high-level storage tank 3 flows to the low-level pumping tank 4. As the water levels in the pumping tank 4 and the storage tank 3 approach equilibrium, the buoyancy plate 56 rises synchronously with the water level in the pumping tank 4 due to buoyancy. The rising buoyancy plate 56 drives the second sliding plate 55 to rise. When the second sliding plate 55 reaches the top of the first sliding plate 54, it drives the first sliding plate 54 to continue rising. At this point, the second sliding plate 55, the first sliding plate 54, and the fixed plate 53 act as baffles to block the water flow. During the ascent of the buoyancy plate 56, the rotating column 571 of the scraping device 57 rotates... The movable hole 572 provides space for movement, and the rotating column 571 has partial buoyancy, allowing it to swing up and down on the water surface. The rotating column 571 drives the scraping strip 573 to rotate. Since the inclined surface of the scraping strip 573 is in contact with the inside of the water tank 4, the scraping strip 573 will scrape the inside of the water tank 3 during the up and down movement of the buoyancy plate 56 and the rotating column 571, thereby scraping off the scale. Similarly, the friction device 58, driven by the inclined elastic plate 582, rotates the rotating shaft 581. During the rotation of the rotating shaft 581, the inclined elastic plate 582 will rub and clean the scale. The scraping device 57 and the friction device 58 achieve the effect of removing the internal scale.

[0035] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An electric cleaning vehicle capable of spraying water and disinfecting the ground, comprising a frame (1), characterized in that: A base plate (2) is fixedly connected to the upper surface of the frame (1), a water tank (3) is fixedly connected to the upper surface of the base plate (2), a water pump (4) is provided outside the water tank (3), a blocking device (5) is fixedly connected to the inner surface of the water pump (4), a water pump (6) is fixedly connected to the outer surface of the blocking device (5), a heating box (7) is fixedly connected to the lower surface of the water pump (6), and a telescopic device (8) is slidably connected to the outer surface of the heating box (7). The blocking device (5) includes a positioning post (51), a blocking plate (52) is fixedly connected to the outer surface of the positioning post (51), a fixing plate (53) is fixedly connected to the outer surface of the blocking plate (52), a first sliding plate (54) is slidably connected to the outer surface of the fixing plate (53) near the water storage tank (3), a second sliding plate (55) is slidably connected to the outer surface of the first sliding plate (54) near the water storage tank (3), a buoyancy plate (56) is fixedly connected to the upper surface of the second sliding plate (55), a scraping device (57) is rotatably connected to the outer surface of the buoyancy plate (56), and a friction device (58) is rotatably connected to the inner surface of the buoyancy plate (56). The lower surface of the positioning post (51) is fixedly connected to the upper surface of the base plate (2), the outer surface of the first sliding plate (54) is slidably connected to the outer surface of the blocking plate (52), and the outer surface of the second sliding plate (55) is slidably connected to the outer surface of the blocking plate (52).

2. The electric cleaning vehicle for spraying water and disinfecting the ground according to claim 1, characterized in that: The upper surface of the base plate (2) is fixedly connected to the lower surface of the water tank (4), and the lower surface of the base plate (2) is fixedly connected to the upper surface of the heating box (7).

3. The electric cleaning vehicle for spraying water and disinfecting the ground according to claim 1, characterized in that: The scraping device (57) includes a rotating column (571), a rotating hole (572) is provided in the wall of the rotating column (571), a scraping strip (573) is fixedly connected to the outer surface of the rotating column (571), and the inner surface of the rotating column (571) is rotatably connected to the outer surface of the buoyancy plate (56) through the rotating hole (572).

4. The electric cleaning vehicle for spraying water and disinfecting the ground according to claim 1, characterized in that: The friction device (58) includes a rotating shaft (581), and an inclined elastic plate (582) is fixedly connected to the outer surface of the rotating shaft (581). The outer surface of the rotating shaft (581) is rotatably connected to the inner surface of the buoyancy plate (56).

5. The electric cleaning vehicle for spraying water and disinfecting the ground according to claim 1, characterized in that: The telescopic device (8) includes a motor (81), the output end of which is fixedly connected to a lead screw (82), the outer surface of which is engaged with a sliding water tank (83), the inner surface of which is slidably connected to a fixed water pipe (84), the outer surface of which is provided with a water outlet pipe (85), the lower surface of which is fixedly connected to a fixed nozzle (86), the outer surface of which is provided with a spraying device (87), the upper surface of which is fixedly connected to the lower surface of the base plate (2), and the outer surface of which is slidably connected to the outer surface of the heating box (7).

6. The electric cleaning vehicle for spraying water and disinfecting the ground according to claim 5, characterized in that: The spraying device (87) includes a rotating ring (871), a water inlet groove (872) is provided in the wall of the rotating ring (871), a fixed ring (873) is fixedly connected to the lower surface of the rotating ring (871), an annular groove (874) is provided in the wall of the fixed ring (873), a water spray ring (875) is fixedly connected to the lower surface of the fixed ring (873), and a water mist device (876) is rotatably connected to the inner surface of the water spray ring (875).

7. An electric cleaning vehicle for spraying water and disinfecting the ground according to claim 6, characterized in that: The outer surface of the rotating ring (871) is rotatably connected to the inner wall of the sliding water tank (83). The water mist device (876) includes a rotating ball (8761), a circular ring (8762) is fixedly connected to the outer surface of the rotating ball (8761), a water inlet (8763) is opened in the wall of the rotating ball (8761), and the outer surface of the circular ring (8762) is rotatably connected to the inner surface of the spray ring (875).

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