Purely electric multifunctional dust suppression vehicle with improved spray device

Abstract

The present invention provides a pure electric multifunctional dust suppression vehicle with an improved spray device, and relates to the technical field of dust suppression vehicles. The pure electric multifunctional dust suppression vehicle with an improved spray device includes a vehicle body, a power supply module, a control circuit, a driving system, a water storage device, and a fog cannon structure. The present invention provides two groups of first motors and fan blades. The air intake can be increased by increasing the number of fan blades. The two groups of fan blades are used in series, which can effectively increase the air volume and wind pressure, so that the efficiency of the fan is improved, so that the range during spraying is farther, and the spray range is effectively increased. An inclined elbow section is provided on the fourth shell, and a second motor that can drive the fourth shell to rotate is provided. When spraying, the straight body section is driven to rotate, and cooperates with the elbow section of the mist outlet, so that the water mist sprayed by the elbow section can cover a larger range, which greatly improves the efficiency of dust suppression operations.

Description

Technical Field

[0001] The invention relates to the technical field of dust suppression vehicles, in particular to a pure electric multifunctional dust suppression vehicle with an improved spray device. Background Art

[0002] In order to meet environmental protection requirements, the technology of pure electric multifunctional dust suppression vehicles has gradually matured. As one of the many dust suppression vehicles, the fog cannon spray and vehicle driving are powered by battery modules, which mainly include the vehicle body and the upper assembly. Using this pure electric multifunctional dust suppression vehicle, the whole vehicle driving and dust suppression operation can be fully electrified, and the entire operation process is zero emission and zero pollution. It eliminates the pollution problems of diesel-powered dust suppression vehicles such as high energy consumption, high noise, and exhaust emissions, and is a new energy dust suppression vehicle that truly embodies green environmental protection.

[0003] However, for pure electric dust suppression vehicles including the above-mentioned prior art, the fog cannon is usually set to spray at a fixed angle. The adjustable bracket for fixing the fog cannon can be used to adjust the spray angle of the fog cannon, but the direction is usually not adjusted during the spraying process. In order to increase the range of the fog cannon, the fog cannon pipe is usually set to be conical, that is, the outlet end is smaller to increase the wind pressure. The small outlet makes the spray range smaller. During dust suppression operations, the vehicle usually needs to go back and forth many times to cover a larger area, and the work efficiency is low. Therefore, it is necessary to improve the spray device of the dust suppression vehicle to improve the work efficiency. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a pure electric multifunctional dust suppression vehicle with an improved spray device, which solves the problem of low working efficiency caused by the small spray range of the fog cannon of the pure electric dust suppression vehicle in the prior art.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pure electric multifunctional dust suppression vehicle with an improved spray device, including a body, a power supply module, a control circuit, a driving system, a water storage device and a fog cannon structure, the body consisting of a cab and a frame arranged at the rear side of the cab, a battery box is fixedly connected to the upper wall of the frame and located at the rear side of the cab, the power supply module is arranged inside the battery box, and heat dissipation windows are arranged on the left and right side walls of the battery box, the water storage device is a water tank, the water tank is fixedly connected to the upper wall of the frame and located at the rear side of the battery box, a water inlet is arranged on the upper wall of the water tank, and the water inlet A sealing cover is threadedly connected to the mouth of the water outlet; the fog cannon structure is rotatably connected to the upper wall of the frame through an adjustable bracket and is located on the rear side of the water tank; the fog cannon structure can adjust the spray angle through the adjustable bracket; a booster structure for pressurized water supply is provided between the water tank and the fog cannon structure; a plurality of groups of atomizing nozzles for spraying water mist are provided at the rear end of the fog cannon structure; the fog cannon structure is composed of a first shell, a second shell, a third shell and a fourth shell distributed in sequence from front to back; the fourth shell is composed of a straight section and an elbow section arranged front and back, and the plurality of groups of atomizing nozzles are arranged on the inner side wall of an end of the elbow section away from the straight section.

[0008] Preferably, the first shell, the second shell and the third shell are commonly and fixedly connected at one end of the adjustable bracket away from the frame, the first shell and the second shell, and the second shell and the third shell are all fixedly connected, the fourth shell is rotatably connected to one end of the third shell away from the second shell, a rotating drive structure for driving the fourth shell to rotate to increase the spray range is arranged between the third shell and the fourth shell, air supply structures are arranged inside the first shell and the second shell, and a protective structure is arranged on the side of the first shell away from the second shell.

[0009] Preferably, the straight section and the elbow section are an integral structure, the angle between the axis line of the elbow section and the axis line of the straight section is one hundred and fifty degrees, and the end of the straight section away from the elbow section is rotatably connected to the inner side wall of the end of the third shell away from the second shell through two sets of bearings.

[0010] Preferably, the third shell and the fourth shell are both composed of an outer shell and an inner shell arranged coaxially, a first boosting chamber is formed between the outer shell and the inner shell on the third shell, and a second boosting chamber is formed between the outer shell and the inner shell on the fourth shell, the boosting structure is connected to the interior of the first boosting chamber, and multiple groups of atomizing nozzles are connected to the interior of the second boosting chamber, and a through structure is provided between the third shell and the fourth shell to facilitate water to enter the interior of the second boosting chamber from the interior of the first boosting chamber.

[0011] Preferably, the inner wall of the third shell and the inner wall of the elbow section are both in the shape of a truncated cone, the inner diameter of the inner wall of the third shell close to the second shell is larger than the end close to the fourth shell, and the inner diameter of the inner wall of the elbow section close to the straight section is larger than the end away from the straight section.

[0012] Preferably, the boosting structure includes a boosting pump and two groups of high-pressure pipes, the boosting pump is fixedly connected to the upper wall of the frame and is located at the rear side of the water tank, the two groups of high-pressure pipes are respectively fixedly connected to the inlet and outlet ends of the boosting pump, and the ends of the two groups of high-pressure pipes away from the boosting pump are respectively fixedly connected to the rear wall of the water tank and the outer wall of the third shell.

[0013] Preferably, the rotation drive structure includes a protective cover, a second motor, a first gear and a second gear. The protective cover is fixedly connected to the outer wall of the third shell and is located at one end close to the fourth shell. The outer wall of the protective cover extends toward the rear side of the third shell. The second motor is fixedly connected to the upper wall of the third shell through a fixed seat and is located inside the protective cover. The first gear and the second gear are respectively fixedly connected to the second motor and the outer wall of the fourth shell, and the outer walls of the first gear and the second gear are meshed with each other.

[0014] Preferably, the air supply structure includes two groups of first motors, the inner walls of the first shell and the second shell are respectively fixedly connected to a group of fixing plates through multiple groups of support frames, the two groups of first motors are respectively fixedly connected to the front walls of the two groups of fixing plates, the extended shaft ends of the two groups of first motors respectively penetrate the corresponding inner walls of the fixing plates and extend to the rear side of the fixing plates, and the outer wall of one end of the first motor extending to the rear side of the fixing plate is fixedly connected to fan blades, the fan blades consist of eighteen groups of blades and a fixing sleeve for fixing the blades, the eighteen groups of blades are equally divided into a circle and fixedly connected to the outer wall of the fixing sleeve with the axis of the fixing sleeve as the center, the two groups of first motors have the same power, and the two groups of fan blades have the same structure and size.

[0015] Preferably, the protective structure includes a protective plate and a protective net, the protective plate is fixedly connected to the front wall of the first shell, the inner wall of the protective plate is provided with a wind window that passes through from front to back, the protective net is fixedly connected to the inner wall of the wind window, and the protective net is a metal wire mesh.

[0016] Preferably, the through structure includes an annular groove and two groups of sealing rings, the annular groove is arranged on the inner side wall of the third shell and is located at one end of the third shell away from the second shell, the two groups of sealing rings are arranged on the inner side wall of the third shell and are respectively located on the front and rear sides of the annular groove, the inner side walls of the two groups of sealing rings are both slidably connected to the outer wall of the straight body section, the inner side wall of the third shell is provided with multiple groups of water outlet holes for penetrating the first boosting chamber and the annular groove, and the outer wall of the straight body section is provided with multiple groups of water inlet holes for penetrating the second boosting chamber and the annular groove.

[0017] (III) Beneficial effects

[0018] The present invention provides a pure electric multifunctional dust suppression vehicle with an improved spray device. It has the following beneficial effects:

[0019] 1. Compared with the prior art, the pure electric multifunctional dust suppression vehicle with an improved spray device is provided with two sets of first motors and fan blades. The air intake can be increased by increasing the number of fan blades. The two sets of fan blades are used in series, which can effectively increase the air volume and air pressure, thereby improving the efficiency of the fan, thereby making the spray range longer and effectively increasing the spray range.

[0020] 2. Compared with the prior art, the pure electric multifunctional dust suppression vehicle with an improved spray device is provided with an inclined elbow section on the fourth shell, and a second motor capable of driving the fourth shell to rotate is provided. When spraying, the straight section is driven to rotate, and cooperates with the elbow section for emitting mist, so that the water mist sprayed from the elbow section can cover a larger range, thereby greatly improving the efficiency of dust suppression operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a partial sectional view of the internal structure of the first shell of the present invention;

[0023] Figure 3 This is a back view of the fan blade of the present invention;

[0024] Figure 4 It is a partial side cross-sectional view of the connection structure between the third shell and the fourth shell of the present invention;

[0025] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A;

[0026] Figure 6 It is a partial cross-sectional view of the internal structure of the third shell of the present invention.

[0027] Among them, 1. Car body; 2. Battery box; 3. Water storage tank; 4. Adjustable bracket; 5. Heat dissipation window; 6. Sealing cover; 7. Protective plate; 8. First shell; 9. Second shell; 10. Third shell; 11. Straight section; 12. Elbow section; 13. Protective net; 14. Protective cover; 15. Booster pump; 16. High-pressure pipe; 17. Fixed plate; 18. Support frame; 19. First motor; 20. Fan blade; 21. Atomizing nozzle; 22. Fixed seat; 23. Second motor; 24. First gear; 25. Second gear; 26. First boost chamber; 27. Second boost chamber; 28. Ring groove; 29. ​​Water outlet; 30. Water inlet; 31. Sealing ring; 32. Bearing. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example:

[0030] like Figures 1 to 6 As shown, an embodiment of the present invention provides a pure electric multifunctional dust suppression vehicle with an improved spray device, including a vehicle body 1, a power supply module, a control circuit, a driving system, a water storage device and a fog cannon structure. The vehicle body 1 is composed of a cab and a frame arranged at the rear side of the cab. A battery box 2 is fixedly connected to the upper wall of the frame and located at the rear side of the cab. The power supply module is arranged inside the battery box 2. Heat dissipation windows 5 are arranged on the left and right side walls of the battery box 2. The water storage device is a water storage tank 3, which is fixedly connected to the upper wall of the frame and located at the rear side of the battery box 2. A water injection port is arranged on the upper wall of the water storage tank 3, and a sealing cover 6 is threadedly connected to the mouth of the water injection port. In this embodiment, the vehicle body 1, the power supply module, the control circuit, the driving system and the water storage device are completely consistent with the existing structure. The power supply module is used to supply power, the driving system drives the vehicle body 1 to move, and the water storage device is used to store water for fogging. This embodiment mainly improves the fog cannon structure to increase the coverage range during spraying to improve work efficiency.

[0031] like Figure 1 As shown, in order to pressurize the water in the water tank 3 and send it to the fog cannon structure, the fog cannon structure is rotatably connected to the upper wall of the frame through an adjustable bracket 4 and is located at the rear side of the water tank 3. The fog cannon structure can adjust the spray angle through the adjustable bracket 4. A boosting structure for pressurized water supply is provided between the water tank 3 and the fog cannon structure. The boosting structure includes a boosting pump 15 and two groups of high-pressure pipes 16. The boosting pump 15 is fixedly connected to the upper wall of the frame and is located at the rear side of the water tank 3. The two groups of high-pressure pipes 16 are respectively fixedly connected to the inlet and outlet ends of the boosting pump 15. The ends of the two groups of high-pressure pipes 16 away from the boosting pump 15 are respectively fixedly connected to the rear wall of the water tank 3 and the outer wall of the third shell 10. The boosting pump 15 pumps water from the water tank 3 and pressurizes it, and then sends it to the first boosting chamber 26 to provide water for the fog cannon structure to spray.

[0032] like Figure 1 , Figure 4As shown, in order to atomize water, a plurality of atomizing nozzles 21 for spraying water mist are arranged at the rear end of the fog cannon structure. The fog cannon structure is composed of a first shell 8, a second shell 9, a third shell 10 and a fourth shell distributed in sequence from front to back. The first shell 8, the second shell 9 and the third shell 10 are fixedly connected to the end of the adjustable bracket 4 away from the frame. The first shell 8 and the second shell 9, and the second shell 9 and the third shell 10 are fixedly connected. The fourth shell is rotatably connected to the end of the third shell 10 away from the second shell 9. The fourth shell is composed of a straight section 11 and an elbow section 12 arranged front and back. The straight section 11 and the elbow section 12 are an integrated structure. The angle between the axis line of the elbow section 12 and the axis line of the straight section 11 is one hundred and fifty degrees. One end of the body section 11 away from the elbow section 12 is rotatably connected to the inner side wall of one end of the third shell 10 away from the second shell 9 through two sets of bearings 32. Multiple sets of atomizing nozzles 21 are all arranged on the inner side wall of one end of the elbow section 12 away from the straight body section 11. The third shell 10 and the fourth shell are both composed of an outer shell and an inner liner arranged coaxially. A first boosting chamber 26 is formed between the outer shell and the inner liner on the third shell 10, and a second boosting chamber 27 is formed between the outer shell and the inner liner on the fourth shell. The boosting structure is connected to the interior of the first boosting chamber 26, and multiple sets of atomizing nozzles 21 are connected to the interior of the second boosting chamber 27. The water from the boosting pump 15 is sent to the interior of the multiple sets of atomizing nozzles 21 through the first boosting chamber 26 and the second boosting chamber 27, and is sprayed out in the shape of water mist through the multiple sets of atomizing nozzles 21.

[0033] like Figure 4 , Figure 5 as well as Figure 6 As shown, in order to keep the first boost chamber 26 and the second boost chamber 27 connected when the fourth shell is rotated, a through structure for facilitating water to enter the second boost chamber 27 from the first boost chamber 26 is provided between the third shell 10 and the fourth shell. The through structure includes an annular groove 28 and two sets of sealing rings 31. The annular groove 28 is provided on the inner side wall of the third shell 10 and is located at one end of the third shell 10 away from the second shell 9. The two sets of sealing rings 31 are both provided on the inner side wall of the third shell 10 and are respectively located on the front and rear sides of the annular groove 28. The inner side walls of the two sets of sealing rings 31 are both slidably connected to the outer wall of the straight body section 11. The inner wall of the third shell 10 is provided with a plurality of water outlet holes 29 for penetrating the first boosting chamber 26 and the annular groove 28, and the outer wall of the straight body section 11 is provided with a plurality of water inlet holes 30 for penetrating the second boosting chamber 27 and the annular groove 28. The water in the first boosting chamber 26 enters the annular groove 28 through the plurality of water outlet holes 29, and is then sent to the second boosting chamber 27 through the plurality of water inlet holes 30. When the fourth shell rotates around the axis of the straight body section 11, the passage does not change, so that when the fourth shell rotates, the water in the first boosting chamber 26 can be smoothly and continuously pressed into the second boosting chamber 27, so as to supply water to the atomizing nozzle 21;

[0034] like Figure 1 , Figure 4 , Figure 5 as well as Figure 6 As shown, in order to improve the spray range of the fog cannon structure, a rotation driving structure for driving the fourth shell to rotate to increase the spray range is provided between the third shell 10 and the fourth shell, and the rotation driving structure includes a protective cover 14, a second motor 23, a first gear 24 and a second gear 25. The protective cover 14 is fixedly connected to the outer wall of the third shell 10 and is located at one end close to the fourth shell, and the outer wall of the protective cover 14 extends toward the rear side of the third shell 10. The second motor 23 is fixedly connected to the upper wall of the third shell 10 through a fixing seat 22 and is located inside the protective cover 14. The first gear 24 and the second gear 25 are respectively fixedly connected to the first and second gears 24 and 25. The second motor 23, the outer wall of the fourth shell and the outer walls of the first gear 24 and the second gear 25 are meshed with each other. When the multiple groups of atomizing nozzles 21 located on the elbow section 12 spray water mist, the air supply structure starts to blow air, and cooperates with the truncated cone-shaped structure of the third shell 10 and the inner cavity of the elbow section 12 to further increase the wind pressure, so that when spraying water mist, the range of the sprayed water mist can be greatly improved. At the same time, when spraying, the second motor 23 rotates, and drives the fourth shell to rotate through the first gear 24 and the second gear 25. Since the elbow section 12 is inclined, the range of the water mist sprayed when the fourth shell rotates is greatly improved, which effectively improves the work efficiency;

[0035] like Figure 1 , Figure 2 as well as Figure 3 As shown, in order to increase the air volume and air pressure, an air supply structure is provided inside the first shell 8 and the second shell 9, and the air supply structure includes two groups of first motors 19. The inner side walls of the first shell 8 and the second shell 9 are respectively fixedly connected with a group of fixing plates 17 through multiple groups of support frames 18. The two groups of first motors 19 are respectively fixedly connected to the front walls of the two groups of fixing plates 17. The extended shaft ends of the two groups of first motors 19 respectively penetrate the corresponding inner walls of the fixing plates 17 and extend to the rear side of the fixing plates 17. The outer wall of one end of the first motor 19 extending to the rear side of the fixing plate 17 is fixedly connected with a fan blade 20. The fan blade 20 consists of eighteen groups of blades and a fan blade for fixing the fan blade. The fan blades 20 are composed of a fixed sleeve of a piece, and the eighteen groups of blades are equally divided and fixedly connected to the outer wall of the fixed sleeve in a circle with the axis of the fixed sleeve as the center. The two groups of first motors 19 have the same power, and the two groups of fan blades 20 have the same structure and size. The inner wall of the third shell 10 and the inner wall of the elbow section 12 are both in the shape of a truncated cone. The inner diameter of the inner wall of the third shell 10 is closer to the second shell 9 than the end closer to the fourth shell. The inner diameter of the inner wall of the elbow section 12 is closer to the straight section 11 than the end away from the straight section 11. The two groups of fan blades 20 are used in series, which can effectively increase the air volume and wind pressure of the incoming air, and can achieve a longer range when applied to water mist;

[0036] like Figure 1As shown, in order to improve the safety of use, a protective structure is provided on one side of the first shell 8 away from the second shell 9, and the protective structure includes a protective plate 7 and a protective net 13. The protective plate 7 is fixedly connected to the front wall of the first shell 8, and the inner wall of the protective plate 7 is provided with a wind window that is through from front to back. The protective net 13 is fixedly connected to the inner wall of the wind window. The protective net 13 is a metal wire mesh, and the protective net 13 is used to protect the user, and can prevent the staff's arm from extending from the front side of the first shell 8 and causing accidental injury. The metal net is durable.

[0037] Working principle: the vehicle body 1 is composed of a cab and a frame arranged at the rear side of the cab, a battery box 2 is fixedly connected to the upper wall of the frame and located at the rear side of the cab, the power supply module is arranged inside the battery box 2, and heat dissipation windows 5 are arranged on the left and right side walls of the battery box 2. The water storage device is a water storage tank 3, which is fixedly connected to the upper wall of the frame and located at the rear side of the battery box 2. A water filling port is arranged on the upper wall of the water storage tank 3, and a sealing cover 6 is threadedly connected to the mouth of the water filling port. In this embodiment, the vehicle body 1, the power supply module, the control circuit, the driving system and the water storage device are completely consistent with the existing structure. The power supply module is used to supply power, the driving system drives the vehicle body 1 to move, and the water storage device is used to store water. The water used for the fog is mainly improved in the fog cannon structure in this embodiment to increase the coverage range during the spraying and to improve the working efficiency. The booster pump 15 draws water from the water storage tank 3 and pressurizes it, and then sends it to the first booster chamber 26 to provide the water used for the fog cannon structure to spray. The water from the booster pump 15 is sent to the interior of the multiple groups of atomizing nozzles 21 through the first booster chamber 26 and the second booster chamber 27, and is sprayed out in the shape of water mist through the multiple groups of atomizing nozzles 21. The water in the first booster chamber 26 enters the interior of the annular groove 28 through the multiple groups of water outlet holes 29, and is then sent to the interior of the second booster chamber 27 through the multiple groups of water inlet holes 30. When the fourth shell rotates around the axis of the straight body section 11, the water The path does not change, so that when the fourth shell rotates, the water in the first boost chamber 26 can be smoothly and continuously pressed into the second boost chamber 27 to supply water to the atomizing nozzle 21; when the multiple groups of atomizing nozzles 21 located on the elbow section 12 spray water mist, the air supply structure starts to blow air, and cooperates with the third shell 10 and the truncated cone structure of the inner cavity of the elbow section 12 to further increase the wind pressure, so that when spraying water mist, the range of the sprayed water mist can be greatly improved. At the same time, when spraying, the second motor 23 rotates, and drives the fourth shell to rotate through the first gear 24 and the second gear 25. Since the elbow section 12 is inclined, the water sprayed when the fourth shell rotates The range of fog is greatly improved, and the work efficiency is effectively improved. The two sets of fan blades 20 are used in series, which can effectively increase the air volume and wind pressure of the incoming wind. When used in water mist, it can achieve a farther range. A protective structure is arranged on the side of the first shell 8 away from the second shell 9. The protective structure includes a protective plate 7 and a protective net 13. The protective plate 7 is fixedly connected to the front wall of the first shell 8. The inner wall of the protective plate 7 is provided with a wind window which is through from front to back. The protective net 13 is fixedly connected to the inner wall of the wind window. The protective net 13 is a metal wire mesh. The protective net 13 is used to protect the user, and can prevent the staff's arms from extending from the front side of the first shell 8 and causing accidental injuries. The metal net is durable.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pure electric multifunctional dust suppression vehicle with an improved spray device, characterized in that: The invention comprises a vehicle body (1), a power supply module, a control circuit, a driving system, a water storage device and a fog cannon structure, wherein the vehicle body (1) is composed of a cab and a frame arranged at the rear side of the cab, a battery box (2) is fixedly connected to the upper wall of the frame and located at the rear side of the cab, the power supply module is arranged inside the battery box (2), and the left and right side walls of the battery box (2) are both provided with heat dissipation windows (5), the water storage device is a water storage tank (3), the water storage tank (3) is fixedly connected to the upper wall of the frame and located at the rear side of the battery box (2), the upper wall of the water storage tank (3) is provided with a water injection port, the mouth of the water injection port is threadedly connected to a sealing cover (6), and the fog cannon structure is connected to the upper wall of the frame by an adjustable bracket (4 ) is rotatably connected to the upper wall of the frame and is located at the rear side of the water storage tank (3); the spray angle of the fog cannon structure is adjusted by an adjustable bracket (4); a booster structure for boosting water supply is provided between the water storage tank (3) and the fog cannon structure; a plurality of groups of atomizing nozzles (21) for spraying water mist are provided at the rear end of the fog cannon structure; the fog cannon structure is composed of a first shell (8), a second shell (9), a third shell (10) and a fourth shell, which are arranged in sequence from front to back; the fourth shell is composed of a straight section (11) and an elbow section (12) arranged in a front-to-back manner; and the plurality of groups of atomizing nozzles (21) are all arranged on the inner side wall of the elbow section (12) at one end away from the straight section (11); The first shell (8), the second shell (9), and the third shell (10) are fixedly connected to one end of the adjustable bracket (4) away from the vehicle frame; the first shell (8) and the second shell (9), and the second shell (9) and the third shell (10) are fixedly connected; the fourth shell is rotatably connected to one end of the third shell (10) away from the second shell (9); a rotation drive structure for driving the fourth shell to rotate so as to increase the spray range is provided between the third shell (10) and the fourth shell; air supply structures are provided inside the first shell (8) and the second shell (9); and a protective structure is provided on a side of the first shell (8) away from the second shell (9); The straight section (11) and the elbow section (12) are an integral structure, the angle between the axis of the elbow section (12) and the axis of the straight section (11) is 150 degrees, and the end of the straight section (11) away from the elbow section (12) is rotatably connected to the inner side wall of the end of the third housing (10) away from the second housing (9) via two sets of bearings (32); The third shell (10) and the fourth shell are both composed of an outer shell and an inner shell arranged coaxially, a first boosting chamber (26) is formed between the outer shell and the inner shell of the third shell (10), and a second boosting chamber (27) is formed between the outer shell and the inner shell of the fourth shell, the boosting structure is connected to the interior of the first boosting chamber (26), and the plurality of groups of atomizing nozzles (21) are connected to the interior of the second boosting chamber (27), and a through structure is provided between the third shell (10) and the fourth shell for facilitating water to enter the interior of the second boosting chamber (27) from the interior of the first boosting chamber (26); The inner side wall of the third shell (10) and the inner side wall of the elbow section (12) are both in the shape of a truncated cone, the inner diameter of the inner side wall of the third shell (10) being greater at one end close to the second shell (9) than at one end close to the fourth shell, and the inner diameter of the inner side wall of the elbow section (12) being greater at one end close to the straight section (11) than at one end away from the straight section (11); The boosting structure comprises a boosting pump (15) and two groups of high-pressure pipes (16); the boosting pump (15) is fixedly connected to the upper wall of the frame and is located at the rear side of the water storage tank (3); the two groups of high-pressure pipes (16) are respectively fixedly connected to the inlet end and the outlet end of the boosting pump (15); and the ends of the two groups of high-pressure pipes (16) away from the boosting pump (15) are respectively fixedly connected to the rear wall of the water storage tank (3) and the outer wall of the third shell (10); The rotary drive structure comprises a protective cover (14), a second motor (23), a first gear (24) and a second gear (25); the protective cover (14) is fixedly connected to the outer wall of the third shell (10) and is located at one end close to the fourth shell; the outer wall of the protective cover (14) extends toward the rear side of the third shell (10); the second motor (23) is fixedly connected to the upper wall of the third shell (10) via a fixing seat (22) and is located inside the protective cover (14); the first gear (24) and the second gear (25) are fixedly connected to the second motor (23) and the outer wall of the fourth shell respectively; and the outer walls of the first gear (24) and the second gear (25) are meshed with each other; The air supply structure comprises two groups of first motors (19); the inner side walls of the first shell (8) and the second shell (9) are respectively fixedly connected to a group of fixing plates (17) through multiple groups of support frames (18); the two groups of first motors (19) are respectively fixedly connected to the front walls of the two groups of fixing plates (17); the extended shaft ends of the two groups of first motors (19) respectively penetrate the corresponding inner walls of the fixing plates (17) and extend to the rear side of the fixing plates (17); the outer wall of one end of the first motor (19) extending to the rear side of the fixing plate (17) is fixedly connected to a fan blade (20); the fan blade (20) is composed of eighteen groups of blades and a fixing sleeve for fixing the blades; the eighteen groups of blades are equally divided and fixedly connected to the outer wall of the fixing sleeve with the axis of the fixing sleeve as the center; the two groups of first motors (19) have the same power; and the two groups of fan blades (20) have the same structure and size; The protective structure comprises a protective plate (7) and a protective net (13), the protective plate (7) being fixedly connected to the front wall of the first shell (8), the inner wall of the protective plate (7) being provided with a wind window which penetrates from front to back, the protective net (13) being fixedly connected to the inner wall of the wind window, and the protective net (13) being a metal wire net; The through structure comprises an annular groove (28) and two groups of sealing rings (31); the annular groove (28) is arranged on the inner side wall of the third shell (10) and is located at an end of the third shell (10) away from the second shell (9); the two groups of sealing rings (31) are arranged on the inner side wall of the third shell (10) and are respectively located at the front and rear sides of the annular groove (28); the inner side walls of the two groups of sealing rings (31) are slidably connected to the outer wall of the straight body section (11); the inner side wall of the third shell (10) is provided with a plurality of groups of water outlet holes (29) for penetrating the first boosting chamber (26) and the annular groove (28); and the outer wall of the straight body section (11) is provided with a plurality of groups of water inlet holes (30) for penetrating the second boosting chamber (27) and the annular groove (28).

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