CN220301235U - Full-automatic sweeping vehicle capable of adjusting distance between main brush and ground - Google Patents

Abstract

The utility model relates to the technical field of sweeping vehicles, and discloses a fully automatic sweeping vehicle with an adjustable main brush distance from the ground, which includes a base. Four universal wheels are fixedly installed at the bottom of the base. One side of the base A push handle is fixedly installed, a through opening is provided on the base, a mounting plate is provided on the base, and a sweeping assembly is provided at the bottom of the mounting plate. By setting four universal wheels and matching the push handle, it is convenient for the staff to move the device to sweep the floor. By setting the distance adjustment mechanism, it is convenient to adjust the height of the sweeping component from the ground, thereby preventing the bristles on the sweeping component from being unable to contact the ground after long-term wear. As a result, the floor cannot be swept cleanly. By setting up a sweeping component, it is convenient to drive the two sweeping wheels to rotate and clean the floor. By setting up a submersible pump, starting the submersible pump can easily transport the water in the water tank to the sprinkler main pipe, and spray the ground through the nozzle. spray, thereby further improving the cleaning effect of the floor.

Description

A fully automatic sweeping vehicle with adjustable main brush distance from the ground

Technical field

The utility model relates to the technical field of sweeping vehicles, specifically a fully automatic sweeping vehicle with an adjustable main brush distance from the ground.

Background technique

The sweeper is an integrated garbage sweeper that combines sweeping and vacuuming. It has the advantages of high working efficiency, low cleaning cost, good cleaning effect, high safety performance, and high economic return rate. It has been widely used on roads in major, medium and small cities. For cleaning work, the sweeping vehicle is equipped with a dustbin for storing garbage.

For example, the public number: CN217758500U discloses a sweeper for automatic dumping of garbage bins. The vehicle body is used to stably support the garbage bin body, the garbage bin body is used to store garbage, and the connecting frame is used to connect The movable block and spring are used to drive the garbage bin body to reset through the cooperation of the spring and the movable block. The servo motor is used to drive the transmission rod to rotate. The transmission rod is used to drive the rewinding roller to rotate, thereby facilitating the connection. The rope is tightened or extended, and by connecting the rope, it is used to drive the garbage bin body to move to one side, so that the garbage bin body can be dumped, thereby making it easier to pour out the garbage. It solves the problem that existing garbage bins are mostly welded. It is fixed on the sweeper, so the garbage bins must be manually removed from the sweeper for dumping. This is not only time-consuming and labor-intensive, but also very unhygienic, which brings great inconvenience to the operator's work.

However, when this prior art is actually used, the distance between the cleaning plate and the ground cannot be adjusted. The bristles on the cleaning plate cannot contact the ground after being worn for a long time, which may easily lead to incomplete sweeping.

Utility model content

(1) Technical problems solved

In view of the shortcomings of the existing technology, the present utility model provides a fully automatic sweeping vehicle with an adjustable main brush distance from the ground. The advantage of this utility model is that by setting a distance adjustment mechanism, the height of the sweeping component from the ground can be conveniently adjusted, thereby preventing the sweeping component from falling on the ground. The bristles cannot contact the ground after being worn for a long time, resulting in the sweeping being unable to clean the floor.

(2) Technical solutions

In order to achieve the above purpose, the present utility model provides the following technical solution: a fully automatic sweeping vehicle with an adjustable main brush distance from the ground, including a base. Four universal wheels are fixedly installed at the bottom of the base. A push handle is fixedly installed on the side, a through hole is provided on the base, a mounting plate is provided on the base, a sweeping assembly is provided on the bottom of the mounting plate, a distance adjustment mechanism is provided on the mounting plate, and the base A dust removal mechanism is also provided on the top of the base. The distance adjustment mechanism includes: a mounting frame. The mounting frame is fixedly installed on the top of the base. A threaded rod is rotatably connected to the mounting frame through a bearing. The top of the mounting frame is fixedly mounted with a No. 1 motor, one end of the threaded rod is fixedly connected to the output end of the No. 1 motor through a coupling, a threaded sleeve is threadedly connected to the outer wall of the threaded rod, and the mounting plate is fixedly connected to the bottom of the threaded sleeve. By setting four universal wheels and matching the push handle, it is convenient for the staff to move the device for sweeping. By setting the No. 1 motor, the No. 1 motor is controlled to drive the threaded rod to rotate forward or reverse. The threaded rod rotates forward or reverse to make the thread sleeve It rises or falls along the outer wall of the threaded rod to facilitate adjusting the height of the sweeping component from the ground, thereby preventing the bristles on the sweeping component from being unable to contact the ground after long-term wear, resulting in incomplete sweeping.

Preferably, a telescopic rod is fixedly connected to the bottom of the mounting bracket, and an end of the telescopic rod away from the mounting bracket is fixedly connected to the top of the mounting plate. By providing a telescopic rod, the threaded rod can be used to limit the position, thereby improving the stability of the sweeping assembly's lifting.

Preferably, the sweeping assembly includes: a support frame, the support frame is fixedly connected to the top of the installation plate, the support frame is rotatably connected to a No. 1 rotating rod through a bearing, and the No. 2 motor is fixedly installed on the top of the support frame. , one end of the No. 1 rotating rod is fixedly connected to the output end of the No. 2 motor through a coupling, the mounting plate is rotationally connected with two No. 2 rotating rods through bearings, and the bottoms of the two No. 2 rotating rods are A sweeping wheel is fixedly connected to each other. A driving gear is fixedly mounted on the outer wall of the first rotating rod. A driven gear is fixedly mounted on the outer wall of the two second rotating rods. The driving gear is connected to the two rotating rods respectively. The driven gears are meshed with each other. By setting the No. 2 motor, the No. 2 motor is started to drive the No. 1 rotary rod to rotate. By setting the driving gear to cooperate with the two driven gear transmissions, the No. 1 rotary rod rotates and drives the two No. 2 rotary rods to rotate at the same time, thereby driving the two sweepers. Sweep the floor in turns.

Preferably, the dust removal mechanism includes: a dust collection box, the dust collection box is fixedly installed on the top of the base, a suction fan is fixedly installed on the top of the dust collection box, and the suction port of the suction fan is connected to a No. Pipe, the other end of the No. 1 pipe is connected to the inside of the dust collection box, the bottom of the dust collection box is connected to the No. 2 pipe, and the end of the No. 2 pipe away from the dust collection box is connected to a dust suction port. , a dust-proof filter plate is fixedly installed inside the dust collection box. By coordinating the suction fan, the No. 1 pipe, the No. 2 pipe and the vacuum inlet, the suction fan is started to facilitate the dust raised by the two sweeping wheels to be sucked into the dust collection box for collection. By setting the dust filter plate, This can prevent dust from entering the suction port of the suction fan through the No. 1 pipe and damaging the suction fan.

Preferably, a door is hingedly connected to the front of the dust collection box through two hinges, and a support plate is fixedly installed inside the dust collection box. A No. 3 rotating rod is rotatably connected to the support plate through a bearing. A wind wheel is fixedly mounted on the outer wall of the No. 3 rotating rod, and a brush plate is fixedly connected to the bottom of the No. 3 rotating rod. The brush plate fits the outer wall of the dust filter plate. By setting the box door, opening the box door facilitates cleaning of the dust collected in the dust collection box. By setting the wind wheel, the suction fan drives the wind wheel to rotate under the action of the wind when sucking dust. The rotation of the wind wheel causes the No. 3 rotating rod to rotate. This drives the brush plate to wipe the surface of the dust-proof filter plate, thereby preventing dust from clogging the apertures of the dust-proof filter plate and affecting the dust collection effect.

Preferably, a water tank is fixedly installed on the top of the base, a water inlet pipe is fixedly connected on the top of the water tank, a sealing cover is threadedly connected to the water inlet pipe, a spray main pipe is fixedly installed on the bottom of the base, and the spray main pipe is fixedly installed on the bottom of the base. A sprinkler head is connected to the bottom of the main shower pipe. A submersible pump is fixedly installed inside the water tank. The water delivery end of the submersible pump is connected to the main shower pipe. By setting up a submersible pump and starting the submersible pump, it is convenient to transport the water in the water tank to the spray main pipe, and spray the ground through the nozzle, thereby further improving the cleaning effect of the ground.

(3) Beneficial effects

Compared with the existing technology, this utility model provides a fully automatic sweeping vehicle with an adjustable main brush distance from the ground, which has the following beneficial effects:

1. This is a fully automatic sweeping vehicle that can adjust the distance of the main brush from the ground. By setting four universal wheels and matching the push handle, it is convenient for the staff to move the device to sweep the floor. By setting the distance adjustment mechanism, it is convenient to adjust the distance of the sweeping component from the ground. height to prevent the bristles on the sweeping assembly from reaching the ground after long-term wear and tear, resulting in incomplete sweeping. By setting the sweeping assembly, it is convenient to drive the two sweeping wheels to rotate and clean the ground. By setting up a submersible pump, it is convenient to start the submersible pump. The water in the water tank is transported to the main spray pipe and sprayed on the floor through the nozzle, thereby further improving the cleaning effect of the floor.

2. This fully automatic sweeper can adjust the distance between the main brush and the ground. By setting up a dust removal mechanism, the dust raised by the two sweeping wheels when sweeping the floor can be easily sucked into the dust collection box for collection. By setting up a dust-proof filter plate, It can prevent dust from entering the suction port of the suction fan through the No. 1 pipe and damaging the suction fan. By setting the box door, opening the box door facilitates cleaning of the dust collected in the dust collection box. By setting the wind wheel, the suction fan can be used when vacuuming. The wind force drives the wind wheel to rotate, and the rotation of the wind wheel causes the No. 3 rotating rod to rotate, thereby driving the brush plate to wipe the surface of the dust-proof filter plate, thereby preventing dust from clogging the aperture of the dust-proof filter plate and affecting the dust collection effect. .

Description of drawings

The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used to explain the present utility model together with the embodiments of the present utility model, and do not constitute a limitation of the present utility model. In the attached picture:

Figure 1 is a front view of the utility model;

Figure 2 is a schematic structural diagram of the distance adjustment mechanism and sweeping assembly of the present utility model;

Figure 3 is a side view of the utility model;

Figure 4 is a schematic structural diagram of the dust removal mechanism of the present utility model.

In the picture: 1. Base; 2. Mounting plate; 3. Sweeping component; 31. Support frame; 32. No. 1 rotating rod; 33. No. 2 motor; 34. No. 2 rotating rod; 35. Sweeping wheel; 36. Active Gear; 37. Driven gear; 4. Distance adjustment mechanism; 41. Mounting frame; 42. Threaded rod; 43. No. 1 motor; 44. Threaded sleeve; 45. Telescopic rod; 5. Dust removal mechanism; 51. Dust collection box ; 52. Suction fan; 53. Pipe No. 1; 54. Pipe No. 2; 55. Dust suction port; 56. Dust filter plate; 57. Box door; 58. Support plate; 59. Rotary rod No. 3; 510. Wind wheel; 511, brush plate; 6, universal wheel; 7, push handle; 8, water tank; 9, water inlet pipe; 10, spray main pipe; 11, sprinkler head.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example.

Embodiment 1

As shown in Figures 1-4, the utility model provides a fully automatic sweeper with an adjustable main brush distance from the ground, including a base 1. Four universal wheels 6 are fixedly installed at the bottom of the base 1. A push handle 7 is fixedly installed on the side, and a through hole is provided on the base 1. A mounting plate 2 is provided on the base 1. A sweeping component 3 is provided at the bottom of the installation plate 2. A distance adjustment mechanism 4 is provided on the installation plate 2. On the base 1 A dust removal mechanism 5 is also provided. The distance adjustment mechanism 4 includes: a mounting frame 41 fixedly installed on the top of the base 1. A threaded rod 42 is rotatably connected to the mounting frame 41 through a bearing. A No. 1 motor 43 is fixedly mounted on the top of the mounting frame 41. The threaded One end of the rod 42 is fixedly connected to the output end of the No. 1 motor 43 through a coupling. A threaded sleeve 44 is threadedly connected to the outer wall of the threaded rod 42. The mounting plate 2 is fixedly connected to the bottom of the threaded sleeve 44. By setting four universal The wheel 6 cooperates with the push handle 7 to facilitate the staff to move the device for sweeping. By setting the No. 1 motor 43, the No. 1 motor 43 is controlled to drive the threaded rod 42 to rotate forward or reverse, and the threaded rod 42 rotates forward or reverse to make the thread sleeve 44 rises or falls along the outer wall of the threaded rod 42, so as to facilitate the adjustment of the height of the sweeping assembly 3 from the ground, thereby preventing the bristles on the sweeping assembly 3 from being unable to contact the ground after long-term wear, resulting in incomplete sweeping, and the bottom of the mounting bracket 41 A telescopic rod 45 is fixedly connected. One end of the telescopic rod 45 away from the mounting bracket 41 is fixedly connected to the top of the mounting plate 2. By setting the telescopic rod 45, the threaded rod 42 can be limited, thereby improving the lifting ability of the sweeping assembly 3. Stability, the sweeping assembly 3 includes: a support frame 31 is fixedly connected to the top of the installation plate 2, a No. 1 rotating rod 32 is rotatably connected to the support frame 31 through a bearing, and a No. 2 motor 33 is fixedly installed on the top of the support frame 31. One end of the rod 32 is fixedly connected to the output end of the No. 2 motor 33 through a coupling. Two No. 2 rotating rods 34 are rotatably connected to the mounting plate 2 through bearings. The bottoms of the two No. 2 rotating rods 34 are respectively fixedly connected to a sweeper. Wheel 35, a driving gear 36 is fixedly mounted on the outer wall of the first rotating rod 32, a driven gear 37 is fixedly mounted on the outer wall of the two second rotating rods 34, and the driving gear 36 is connected to the two driven gears 37 respectively. Mutually meshing connection, by setting the No. 2 motor 33, the No. 2 motor 33 is started to drive the No. 1 rotating rod 32 to rotate, and by setting the driving gear 36 to cooperate with the two driven gears 37 for transmission, the No. 1 rotating rod 32 rotates and drives the two second rotating rods 32 at the same time. The rotating rod 34 rotates, thereby driving the two sweeping wheels 35 to rotate and clean the ground. A water tank 8 is fixedly installed on the top of the base 1, and a water inlet pipe 9 is fixedly connected to the top of the water tank 8. The water inlet pipe 9 is threadedly connected with a sealing cover. A spray main pipe 10 is fixedly installed at the bottom of the base 1, and a sprinkler head 11 is connected to the bottom of the spray main pipe 10. A submersible pump is fixedly installed inside the water tank 8. The water delivery end of the submersible pump is connected to the spray main pipe 10. By setting Submersible pump, start the submersible pump to transport the water in the water tank 8 to the spray main pipe 10, and spray the ground through the nozzle 11, thereby further improving the cleaning effect of the ground.

In this embodiment, four universal wheels 6 are provided in conjunction with the push handle 7 to facilitate the staff to move the device for sweeping, and the distance adjustment mechanism 4 is provided to facilitate the adjustment of the height of the sweeping assembly 3 from the ground, thereby preventing the sweeping assembly 3 from being After long-term wear and tear, the bristles on the floor cannot touch the ground, resulting in incomplete sweeping. By setting the sweeping assembly 3, it is convenient to drive the two sweeping wheels 35 to rotate to clean the ground. By setting up a submersible pump, it is convenient to start the submersible pump to drain the water in the water tank 8. It is transported to the main spray pipe 10 and sprayed on the floor through the nozzle 11, thereby further improving the cleaning effect of the floor.

Embodiment 2

As shown in Figures 1-4, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the dust removal mechanism 5 includes: a dust collection box 51 is fixedly installed on the top of the base 1, and the dust collection box 51 is A suction fan 52 is fixedly installed on the top. The suction port of the suction fan 52 is connected to a No. 1 pipe 53. The other end of the No. 1 pipe 53 is connected to the inside of the dust collection box 51. The bottom of the dust collection box 51 is connected to a No. 2 pipe. Pipe 54, the end of the No. 2 pipe 54 away from the dust collection box 51 is connected to a dust suction port 55. A dust filter plate 56 is fixedly installed inside the dust collection box 51. Through the suction fan 52, the No. 1 pipe 53, and the No. 2 pipe 54 is set in conjunction with the dust suction port 55, and the suction fan 52 is started to facilitate the dust raised by the two sweeping wheels 35 when sweeping the floor to be sucked into the dust collection box 51 for collection. By setting the dust filter plate 56, dust can be prevented from passing through a Pipe 53 enters the suction port of the suction fan 52 and damages the suction fan 52. The front of the dust collection box 51 is hingedly connected with a door 57 through two hinges. A support plate 58 is fixedly installed inside the dust collection box 51. The support plate The No. 3 rotating rod 59 is rotatably connected to the No. 3 rotating rod 58 through a bearing. The outer wall of the No. 3 rotating rod 59 is fixed with a wind wheel 510. The bottom of the No. 3 rotating rod 59 is fixedly connected with a brush plate 511. The brush plate 511 and the dust filter plate are fixedly connected. The outer walls of the dust collecting box 56 are fitted together. By setting the door 57, the door 57 can be opened to facilitate cleaning of the dust collected in the dust collecting box 51. By setting the wind wheel 510, the suction fan 52 drives the wind wheel under the action of the wind when sucking dust. 510 rotates, and the rotation of the wind wheel 510 causes the No. 3 rotating rod 59 to rotate, thereby driving the brush plate 511 to wipe the surface of the dust filter plate 56, thereby preventing dust from clogging the aperture of the dust filter plate 56 and affecting the dust collection effect.

In this embodiment, the dust removal mechanism 5 is provided to facilitate the inhalation of dust raised by the two sweeping wheels 35 when sweeping the floor into the dust collection box 51 for collection. The dust filter plate 56 is provided to prevent dust from passing through the No. 1 pipe 53 Entering the suction port of the suction fan 52 and damaging the suction fan 52, by setting the door 57, opening the door 57 facilitates cleaning of the dust collected in the dust collection box 51. By setting the wind wheel 510, the suction fan 52 can The wind wheel 510 is driven to rotate under the action of the wind. The rotation of the wind wheel 510 causes the No. 3 rotating rod 59 to rotate, thereby driving the brush plate 511 to wipe the surface of the dust filter plate 56, thereby preventing dust from clogging the apertures of the dust filter plate 56. It will affect the vacuuming effect.

Let’s talk about the working principle of this fully automatic sweeper with adjustable main brush distance from the ground.

As shown in Figure 1-4, when in use, by setting four universal wheels 6 and matching the push handle 7, it is convenient for the staff to move the device for sweeping. By setting the No. 1 motor 43, the No. 1 motor 43 is controlled to drive the threaded rod 42 Forward or reverse rotation, the forward or reverse rotation of the threaded rod 42 causes the threaded sleeve 44 to rise or fall along the outer wall of the threaded rod 42, thereby conveniently adjusting the height of the sweeping assembly 3 from the ground, thereby avoiding long-term wear of the bristles on the sweeping assembly 3. It cannot touch the ground, resulting in incomplete sweeping. By setting the telescopic rod 45, the threaded rod 42 can be limited, thereby improving the stability of the lifting of the sweeping assembly 3. By setting the No. 2 motor 33, start the No. 2 motor. The motor 33 drives the No. 1 rotating rod 32 to rotate, and the driving gear 36 is arranged to cooperate with the two driven gears 37 for transmission. When the No. 1 rotating rod 32 rotates, it drives the two No. 2 rotating rods 34 to rotate, thereby driving the two sweeping wheels 35 to rotate. To clean the floor, the suction fan 52 is started by coordinating the suction fan 52, the No. 1 pipe 53, the No. 2 pipe 54 and the dust suction port 55 to facilitate sucking the dust raised by the two sweeping wheels 35 into the dust collection box. 51. By setting the dust-proof filter plate 56, dust can be prevented from entering the suction port of the suction fan 52 through the No. 1 pipe 53 and damaging the suction fan 52. By setting the box door 57, the box door 57 can be opened to facilitate the dust collection box. The dust collected in 51 is cleaned by setting the wind wheel 510. When the suction fan 52 sucks dust, it drives the wind wheel 510 to rotate under the action of the wind. The rotation of the wind wheel 510 causes the No. 3 rotating rod 59 to rotate, thereby driving the brush plate 511 to clean the dust. The surface of the dust filter plate 56 is wiped to prevent dust from clogging the aperture of the dust filter plate 56 and affecting the dust collection effect. By setting up a submersible pump, starting the submersible pump facilitates transporting the water in the water tank 8 to the spray main pipe 10 , and spray the ground through the nozzle 11, thereby further improving the cleaning effect of the ground.

Claims (6)

1. The utility model provides a full-automatic street sweeper of adjustable owner brush distance from ground, includes base (1), four universal wheels (6) are installed to the bottom fixed mounting of base (1), one side fixed mounting of base (1) has push away handle (7), its characterized in that: the utility model discloses a dust removal device for a floor sweeping machine, including base (1), base (1) is last to have seted up the opening, be provided with mounting panel (2) on base (1), the bottom of mounting panel (2) is provided with sweeping subassembly (3), be provided with distance adjustment mechanism (4) on mounting panel (2), still be provided with dust removal mechanism (5) on base (1), distance adjustment mechanism (4) include: the mounting rack (41), mounting rack (41) fixed mounting is at the top of base (1), be connected with threaded rod (42) through the bearing rotation on mounting rack (41), the top fixed mounting of mounting rack (41) has motor (43) No. one, the one end of threaded rod (42) is through the output of shaft coupling fixed connection at motor (43) No. one, threaded sleeve (44) is threaded connection on the outer wall of threaded rod (42), mounting panel (2) fixed connection is in the bottom of threaded sleeve (44).

2. The fully automatic floor sweeper capable of adjusting the distance from a main brush to the ground according to claim 1, wherein: the bottom fixedly connected with telescopic link (45) of mounting bracket (41), the one end that mounting bracket (41) was kept away from to telescopic link (45) is fixedly connected with the top of mounting panel (2).

3. The fully automatic floor sweeper capable of adjusting the distance from a main brush to the ground according to claim 1, wherein: the sweeping assembly (3) comprises: support frame (31), support frame (31) fixed connection is at the top of mounting panel (2), be connected with bull stick (32) through the bearing rotation on support frame (31), the top fixed mounting of support frame (31) has No. two motors (33), the one end of bull stick (32) is through the output of shaft coupling fixed connection at No. two motors (33), be connected with two bull sticks (34) through the bearing rotation on mounting panel (2), two the bottom of No. two bull sticks (34) is fixedly connected with sweeping wheel (35) respectively, fixed cover is equipped with driving gear (36) on the outer wall of No. one bull stick (32), two fixed cover is equipped with driven gear (37) on the outer wall of No. two bull sticks (34) respectively, driving gear (36) respectively with two driven gear (37) intermeshing are connected.

4. The fully automatic floor sweeper capable of adjusting the distance from a main brush to the ground according to claim 1, wherein: the dust removing mechanism (5) includes: the dust collecting box (51), dust collecting box (51) fixed mounting is at the top of base (1), the top fixed mounting of dust collecting box (51) has suction fan (52), the inlet scoop department of suction fan (52) communicates with each other and is connected with pipeline (53) No. one, the other end of pipeline (53) communicates with each other and is connected in the inside of dust collecting box (51), the bottom of dust collecting box (51) communicates with each other and is connected with pipeline (54) No. two, the one end that dust collecting box (51) were kept away from to pipeline (54) communicates with each other and is connected with dust absorption mouth (55), the inside fixed mounting of dust collecting box (51) has dustproof filter plate (56).

5. The fully automatic floor sweeper capable of adjusting the distance from a main brush to the ground according to claim 4, wherein: the front of dust collecting box (51) is connected with chamber door (57) through two hinges are articulated, the inside fixed mounting of dust collecting box (51) has backup pad (58), be connected with No. three bull sticks (59) through the bearing rotation on backup pad (58), fixed cover is equipped with wind wheel (510) on the outer wall of No. three bull sticks (59), the bottom fixedly connected with brush board (511) of No. three bull sticks (59), brush board (511) are laminated with the outer wall of dustproof filter plate (56) mutually.

6. The fully automatic floor sweeper capable of adjusting the distance from a main brush to the ground according to claim 1, wherein: the novel water tank is characterized in that a water tank (8) is fixedly arranged at the top of the base (1), a water inlet pipe (9) is fixedly connected to the top of the water tank (8), a sealing cover is connected to the water inlet pipe (9) in a threaded mode, a spraying main pipe (10) is fixedly arranged at the bottom of the base (1), a spray head (11) is connected to the bottom of the spraying main pipe (10) in a communicating mode, a submersible pump is fixedly arranged in the water tank (8), and a water delivery end of the submersible pump is connected with the spraying main pipe (10) in a communicating mode.