Fog gun suitable for different dust fall requirements

Abstract

The invention provides a fog gun suitable for different dust fall requirements. The fog gun comprises a bottom box, and a supporting frame is arranged at the top of the bottom box; the supporting frame is connected with a fog gun barrel through a rotating shaft, a spray head mechanism is arranged at the end of the fog gun barrel, and a replaceable nozzle set is arranged in the spray head mechanism. A heating mechanism is arranged on the periphery of the fog gun barrel and is close to the nozzle group; and a plurality of guide plates are arranged in the fog gun barrel. Water and the spray head end of the fog gun can be heated, and the influence caused by the low-temperature environment is reduced; the nozzle can be adjusted according to needs, so that the particle size and the spraying angle of spraying are convenient to adjust; the type of air flow can be adjusted according to needs so as to adapt to different spraying requirements, and the adaptive capacity is better.

Description

Technical Field

[0001] The present invention relates to the technical field of fog guns, and particularly relates to a fog gun applicable to different dust reduction requirements. Background Art

[0002] A fog gun is a device used for dust reduction and haze control. It mainly reduces the concentration of particulate matter in the air by spraying fine water mist particles, thereby purifying the air. It is also known as a multi-functional dust suppression vehicle or a spray dust reduction vehicle, and is widely used in urban dust control and the improvement of haze weather.

[0003] When in use, the fog gun atomizes water by using a high-pressure water pump and a nozzle, forms water mist particles in the micron level and sprays them out. These water mist particles can combine with the dust particles in the air, increase their weight and settle to the ground, thus achieving the effects of dust reduction and air purification.

[0004] However, when the fog gun is used in a low-temperature environment, especially in the Northeast region, due to the low temperature, it is easy to be damaged by freezing and thawing.

[0005] Moreover, when used in different environments and scenarios, the working requirements for the fog gun are different, such as large-particle dust reduction, directional high-pressure long-distance dust reduction, etc. The existing fog guns are not convenient to adjust. Summary of the Invention

[0006] The main purpose of the present invention is to provide a fog gun applicable to different dust reduction requirements, and solve the problems that the existing fog guns cannot adapt to low-temperature environments and are not convenient to adjust as required.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is: A fog gun applicable to different dust reduction requirements, including a bottom box, and a support frame is provided on the top of the bottom box; The support frame is connected with a fog gun barrel through a rotating shaft, a nozzle mechanism is provided at the end of the fog gun barrel, and a replaceable nozzle group is provided inside the nozzle mechanism; A heating mechanism is provided on the outer periphery of the fog gun barrel, and the heating mechanism is close to the nozzle group; Several flow guide plates are provided inside the fog gun barrel.

[0008] In a preferred solution, a rotating base is provided on the top of the bottom box, and the support frame is located on the top of the rotating base; A control box is provided on the top of the bottom box; A water pump and a water tank are provided inside the bottom box, and a heater is provided inside the water tank; The fog gun barrel includes an intermediate barrel connected with the support frame through a rotating shaft; One end of the intermediate barrel is provided with a conical barrel, and a nozzle mechanism is provided on the side of the conical barrel far away from the intermediate barrel; A fan is provided at the other end of the intermediate barrel; A hydraulic cylinder is provided between the bottom end of the support frame and the conical barrel.

[0009] In a preferred embodiment, the heating mechanism includes a fixing sleeve fixedly sleeved outside the fog cannon barrel; A heating ring is provided inside the fixing sleeve.

[0010] In a preferred embodiment, the nozzle mechanism includes a fixing ring fixedly connected to the fog cannon barrel; A connecting ring is movably connected inside the fixing ring; A nozzle group is provided on one side of the connecting ring away from the fixing ring; An annular water pipe is provided inside the fixing ring, and the annular water pipe is externally connected to a water inlet pipe; A number of water inlet holes are provided inside the connecting ring, and the water inlet holes are communicated with the nozzle group; The annular water pipe is provided with a number of branch connecting pipes, and the branch connecting pipes are communicated with the water inlet holes.

[0011] In a preferred embodiment, the connecting ring is rotatably connected to the fixing ring; A limiting ring is provided on the outer periphery of the connecting ring, and a plain bearing is provided on one side of the limiting ring away from the fog cannon barrel; The branch connecting pipe includes a water outlet pipe connected to the annular water pipe, and a sleeve is sleeved on the water outlet pipe, and the sleeve is slidably connected to the water outlet pipe; A sealing gasket is provided on one side of the sleeve close to the connecting ring, the sealing gasket abuts against the connecting ring, and a first spring is provided on the other side of the sleeve; The first spring is in a compressed state; The nozzle group includes a number of first nozzles, second nozzles and third nozzles, and the number of the branch connecting pipes, the first nozzles, the second nozzles and the third nozzles is the same; The first nozzles, the second nozzles and the third nozzles are sequentially and evenly arranged in the order of ABCABC along the circumferential direction of the connecting ring; The rotation angles between two adjacent first nozzles, between two adjacent branch connecting pipes, between two adjacent second nozzles and between two adjacent third nozzles are the same.

[0012] In a preferred embodiment, the number of the water inlet holes is the sum of the numbers of the first nozzles, the second nozzles and the third nozzles; The fixing ring, the connecting ring and the annular water pipe are coaxial, and the water inlet holes are annularly and evenly distributed with the axis of the connecting ring as the axis.

[0013] In a preferred embodiment, the connecting ring is inserted into the inside of the fixing ring; It includes a number of connecting rings, one of the connecting rings is inside the fixing ring, and the other connecting rings are placed in the bottom box; Magnets are provided inside the fixing ring, and the magnets adsorb the connecting rings; The branch connecting pipe includes an insertion pipe connected to the annular water pipe, and the insertion pipe is inserted into the water inlet hole; The number of the insertion pipes and the water inlet holes is the same.

[0014] In a preferred embodiment, a support column is provided inside the fog cannon barrel; A number of first support rods and second support rods are provided at both ends of the support column; The ends of the first support rod and the second support rod are both connected to the inner wall of the fog cannon barrel; The flow guide plate is arranged between the support column, the first support rod, the second support rod and the inner wall of the fog cannon barrel.

[0015] In a preferred embodiment, the flow guide plate is an elastic plate. One side of the flow guide plate is connected to the first support rod, and a connecting rod is provided on the side of the flow guide plate close to the second support rod; A rotating ring is rotatably provided at one end of the support column close to the second support rod; An adjusting structure is provided on the outer periphery of the fog cannon barrel; One end of the connecting rod is connected to the rotating ring, and the other end is connected to the adjusting mechanism.

[0016] In a preferred embodiment, a number of movable holes are provided on the outer periphery of the fog cannon barrel. The number of the movable holes is the same as that of the connecting rods, and the connecting rods slide along the movable holes; The adjusting mechanism includes a positioning ring and a movable ring sleeved on the outer periphery of the fog cannon barrel; The positioning ring is fixedly connected to the fog cannon barrel; The movable ring is rotatably arranged outside the fog cannon barrel and is fixedly connected to the connecting rod; A number of fixing blocks are provided on the outer peripheral surface of the fog cannon barrel. The movable ring is located between the positioning ring and the fixing blocks; A second spring is provided inside the fixing block, and the second spring is in a compressed state; A limiting ball is provided at the end of the second spring; A number of circular grooves are provided on the side surface of the movable ring, and the circular grooves are adapted to the limiting balls.

[0017] The present invention provides a fog cannon applicable to different dust reduction requirements. By adopting the above solutions, the following beneficial effects are achieved: 1. It can heat the water and the nozzle end of the fog cannon, reduce the influence brought by the low-temperature environment, facilitate the stable use of the fog cannon in the low-temperature environment, and ensure its service life.

[0018] 2. It can adjust the nozzle according to needs, so as to facilitate the adjustment of the particle size and spraying angle of the spray, so as to adapt to different dust reduction requirements.

[0019] 3. It can adjust the type of air flow according to needs, so as to adapt to different spraying requirements and has better adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present invention in conjunction with the drawings and embodiments: Figure 1 It is a schematic structural diagram of the present invention; Figure 2 is a side view of the present invention; Figure 3 is a schematic cross-sectional structure diagram of the present invention; Figure 4 is a schematic cross-sectional structure diagram at the middle cylinder of the present invention; Figure 5 is a schematic cross-sectional structure diagram of the nozzle mechanism of the present invention; Figure 6 is Figure 5 an enlarged schematic diagram of the structure at A in Figure 7 is a schematic cross-sectional structure diagram of the adjusting mechanism of the present invention; Figure 8 is a schematic diagram of the embodiment structure of the nozzle mechanism of the present invention.

[0021] In the figure: bottom box 1, control box 101, rotating base 102, support frame 103, middle cylinder 201, conical cylinder 202, fan 203, rotating shaft 204, hydraulic cylinder 205, heating mechanism 3, fixed sleeve 301, heating ring 302, nozzle mechanism 4, fixed ring 401, connecting ring 402, annular water pipe 403, water inlet pipe 404, nozzle group 405, first nozzle 451, second nozzle 452, third nozzle 453, water inlet hole 406, branch pipe 407, water outlet pipe 471, sleeve 472, gasket 473, first spring 474, inserted pipe 475, limit ring 408, plain bearing 481, magnet 409, support column 5, first support rod 501, second support rod 502, deflector 6, adjusting mechanism 7, rotating ring 701, connecting rod 702, movable ring 703, positioning ring 704, fixed block 705, second spring 706, limit ball 707. Detailed implementation manners

[0022] In the embodiments of the present application, as shown in Figure 1 , 2 , 3 and 4, a fog cannon applicable to different dust suppression requirements includes a bottom box 1, a control box 101 at the top of the bottom box 1. The control box 101 is a commonly used control device for existing fog cannons, and is internally provided with a control switch and a display structure. A water pump and a water tank are provided in the bottom box 1. The water pump and the water tank adopt common structures. By starting the water pump, the water in the water tank is sent into the fog cannon barrel. In a further embodiment, a heater and a temperature sensor are provided in the water tank. The heater is preferably a PTC heater, and the temperature in the water tank is preferably 10 - 20 degrees; a rotating base 102 is provided at the top of the bottom box 1, and a support frame 103 is provided at the top of the rotating base 102. The rotating base 102 is a commonly used rotating base for existing fog cannons, and is used to control the rotation of the support frame 103 and the fog cannon barrel connected above it through the rotating shaft 204 to adjust the spraying direction.

[0023] Further, the fog cannon barrel includes an intermediate barrel 201 connected to the support frame 103 through a rotating shaft 204; one end of the intermediate barrel 201 is provided with a conical barrel 202, and a nozzle mechanism 4 is provided on the side of the conical barrel 202 away from the intermediate barrel 201; the other end of the intermediate barrel 201 is provided with a fan 203, and the fan 203 is a commonly used fan for existing fog cannons, preferably a worm wheel blower; a hydraulic cylinder 205 is provided between the bottom end of the support frame 103 and the conical barrel 202. The hydraulic cylinder 205 is an existing hydraulic cylinder, and both ends of the hydraulic cylinder 205 are connected by means of hinges. The telescopic movement of the hydraulic cylinder 205 drives the fog cannon barrel to rotate around the rotating shaft 204 to adjust the spraying angle; by starting the fan 203, the spraying of water mist can be accelerated.

[0024] In a further embodiment, as Figure 1 、 5 shown in and 6, the nozzle mechanism 4 includes a fixed ring 401 fixedly connected to the fog cannon barrel; a connecting ring 402 is movably connected inside the fixed ring 401; a nozzle group 405 is provided on the side of the connecting ring 402 away from the fixed ring 401, and a plurality of nozzles are provided in the nozzle group 405 for spraying water mist; An annular water pipe 403 is provided inside the fixed ring 401. The annular water pipe 403 is externally connected to a water inlet pipe 404, and the water inlet pipe 404 is connected to a water pump; a number of water inlet holes 406 are provided inside the connecting ring 402, and the water inlet holes 406 are communicated with the nozzle group 405; a number of branch connecting pipes 407 are provided on the annular water pipe 403, and the branch connecting pipes 407 are communicated with the water inlet holes 406. During use, water in the water tank is sent into the water inlet pipe 404 through the water pump, and then passes through the annular water pipe 403, the branch connecting pipes 407 and the water inlet holes 406 in sequence and is sprayed out through the nozzle group 405.

[0025] In one of the preferred embodiments, the connecting ring 402 is rotatably connected to the fixed ring 401; a limiting ring 408 is provided on the outer periphery of the connecting ring 402, and a plain bearing 481 is provided on the side of the limiting ring 408 away from the fog cannon barrel. During the spraying process, the water pressure will push the connecting ring 402, and the fixed ring 401 is used to prevent the connecting ring 402 from accidentally detaching; The branch connecting pipe 407 includes an outlet pipe 471 connected to the annular water pipe 403. A sleeve 472 is sleeved on the outlet pipe 471. The sleeve 472 is slidably connected to the outlet pipe 471. A sealing ring is provided between the sleeve 472 and the outlet pipe 471. A sealing gasket 473 is provided on the side of the sleeve 472 close to the connecting ring 402, and the sealing gasket 473 abuts against the connecting ring 402. A first spring 474 is provided on the other side of the sleeve 472, and the first spring 474 is in a compressed state. After the connecting ring 402 rotates, the sealing gasket 473 is always abutted against the connecting ring 402 by the thrust of the first spring 474, thereby preventing water leakage; Further, the nozzle group 405 includes a plurality of first nozzles 451, second nozzles 452 and third nozzles 453. The number of the branch pipes 407, first nozzles 451, second nozzles 452 and third nozzles 453 is the same, preferably not less than 8. The first nozzles 451, second nozzles 452 and third nozzles 453 are sequentially and evenly arranged in the order of ABCABC along the circumferential direction of the connecting ring 402. The rotation angles between two adjacent first nozzles 451, between two adjacent branch pipes 407, between two adjacent second nozzles 452 and between two adjacent third nozzles 453 are the same. That is, during actual use, by rotating the connecting ring 402 to drive the nozzle group 405 to rotate, during the rotation process, the water inlet holes 406 connected to a plurality of first nozzles 451 are simultaneously communicated with the branch pipes 407, or the water inlet holes 406 connected to a plurality of second nozzles 452 are simultaneously communicated with the branch pipes 407, or the water inlet holes 406 connected to a plurality of third nozzles 453 are simultaneously communicated with the branch pipes 407. The first nozzles 451, second nozzles 452 and third nozzles 453 adopt different nozzles and different angles. Therefore, during use, the user can adjust the type of the nozzle according to actual use requirements, with simple operation, higher efficiency and stronger adaptability.

[0026] In a preferred solution, the number of the water inlet holes 406 is the sum of the numbers of the first nozzles 451, second nozzles 452 and third nozzles 453. The fixed ring 401, the connecting ring 402 and the annular water pipe 403 are coaxial. The water inlet holes 406 are evenly distributed in a ring with the axis of the connecting ring 402 as the axis, so as to ensure that after the connecting ring 402 rotates, different water inlet holes 406 can be docked with the branch pipes 407, that is, docked with the sleeve 472, to ensure that water can enter the corresponding nozzles through the water outlet pipe 471, the sleeve 472 and the water inlet holes 406.

[0027] In another preferred embodiment, as Figure 8 shown, the connecting ring 402 is inserted into the inside of the fixed ring 401. There are also a plurality of connecting rings 402, one of the connecting rings 402 is located inside the fixed ring 401, and the other connecting rings 402 are placed in the bottom box 1. That is, a storage bin, such as a drawer, is arranged in the bottom box 1, and then the connecting rings 402 for replacement are placed in the storage bin. Different connecting rings 402 are connected to different nozzles.

[0028] A magnet 409 is arranged inside the fixing ring 401, and the magnet 409 attracts the connecting ring 402, and the connecting ring 402 is made of a material that can be attracted by the magnet; the connecting ring 402 is attracted by the magnet 409 to prevent the connecting ring 402 from accidentally detaching, and when it needs to be replaced, the connecting ring 402 can be removed by manually pulling it out, which is simple to operate and convenient for replacement. The branch pipe 407 includes a plug-in pipe 475 connected to the annular water pipe 403, and the number of the plug-in pipe 475 and the water inlet hole 406 are the same, and the plug-in pipe 475 is plugged into the water inlet hole 406; when installing the connecting ring 402, first align the plug-in pipe 475 with the water inlet hole 406 to facilitate smooth installation; a sealing ring is arranged between the plug-in pipe 475 and the water inlet hole 406.

[0029] In a further embodiment, Figure 1 , 3 As shown in Figures 4 and 5, a heating mechanism 3 is provided on the periphery of the fog cannon barrel, and the heating mechanism 3 is close to the nozzle group 405; the specific heating mechanism 3 includes a fixed sleeve 301 fixedly sleeved on the outside of the fog cannon barrel; a heating ring 302 is provided inside the fixed sleeve 301, and the heating ring 302 is an existing heating ring with an external power supply. The heating ring 302 is started in low temperature weather, and the heat is transferred to the nozzle mechanism 4 to avoid the temperature at the nozzle mechanism 4 being too low, so as to ensure the use of the fog cannon of this application in a low temperature environment.

[0030] In a further embodiment, Figure 3 , 4 As shown in 7, a support column 5 is provided in the barrel of the fog cannon; Several first support rods 501 and second support rods 502 are provided at both ends of the support column 5; the ends of the first support rod 501 and the second support rod 502 are connected to the inner wall of the fog cannon barrel; guide plates 6 are provided between the support column 5, the first support rod 501, the second support rod 502 and the inner wall of the fog cannon barrel, and the number of guide plates 6 is not less than 5. When in use, the wind flow generated by the fan 203 is guided by the guide plates 6.

[0031] In a further embodiment, the guide plate 6 is an elastic plate, preferably a rubber plate or a TPE plate, one side of the guide plate 6 is connected to the first support rod 501, and a connecting rod 702 is provided on the side of the guide plate 6 close to the second support rod 502; a rotating ring 701 is provided at one end of the support column 5 close to the second support rod 502; an adjusting structure 7 is provided on the outer periphery of the fog cannon barrel; one end of the connecting rod 702 is connected to the rotating ring 701, and the other end is connected to the adjusting mechanism 7; When in use, the connecting rod 702 is driven to rotate by rotating the adjustment structure 7, thereby driving one side of the guide plate 6 to twist and then adjusting the twisting degree of the guide plate 6, thereby adjusting its wind diversion state. For example, when the guide plate 6 is in a straight state, parallel wind is exported to meet the needs of long-distance spraying. When the guide plate 6 is in a twisted state, a cyclone is exported to meet the needs of close-range and large-scale spraying.

[0032] In a further embodiment, a plurality of movable holes are provided on the outer periphery of the fog cannon barrel. The number of the movable holes is the same as that of the connecting rods 702. The connecting rods 702 slide along the movable holes; the movement range of the connecting rods 702 is restricted by the movable holes.

[0033] Further, the adjusting mechanism 7 includes a positioning ring 704 and a movable ring 703 sleeved on the outer periphery of the fog cannon barrel; the positioning ring 704 is fixedly connected to the fog cannon barrel; the movable ring 703 is rotatably arranged outside the fog cannon barrel and is fixedly connected to the connecting rod 702; a plurality of fixing blocks 705 are provided on the outer peripheral surface of the fog cannon barrel. The movable ring 703 is located between the positioning ring 704 and the fixing blocks 705; a second spring 706 is arranged in the fixing block 705. The second spring 706 is in a compressed state; a limiting ball 707 is arranged at the end of the second spring 706; a plurality of circular grooves are provided on the side surface of the movable ring 703. The circular grooves are adapted to the limiting balls 707. The limiting balls 707 are pushed by the second spring 706 to always be located in the circular grooves, so as to prevent the limiting balls 707 from randomly separating from the circular grooves, thereby preventing the movable ring 703 from randomly rotating and ensuring the stability of the state of the deflector 6. When the angle needs to be adjusted, the movable ring 703 is rotated forcefully. The force applied by the operator acts on the limiting ball 707 to offset the force given by the second spring 706, so that the limiting ball 707 can be pushed away from the circular groove. The movable ring 703 rotates normally accordingly until the limiting ball 707 moves to the position of the next circular groove, thereby completing one adjustment. By analogy, multiple adjustments can be completed until the angle of the deflector 6 meets the usage requirements. The operation is simple and can meet different usage requirements.

[0034] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A fog cannon suitable for different dust reduction needs, characterized by: It comprises a bottom box (1), wherein a support frame (103) is provided on the top of the bottom box (1); The support frame (103) is connected to a mist cannon barrel via a rotating shaft (204); a nozzle mechanism (4) is provided at the end of the mist cannon barrel, and a replaceable nozzle group (405) is provided in the nozzle mechanism (4); A heating mechanism (3) is provided on the outer periphery of the fog cannon barrel, and the heating mechanism (3) is close to the nozzle assembly (405); A plurality of guide plates (6) are arranged in the barrel of the fog cannon.

2. A fog cannon suitable for different dust reduction requirements according to claim 1, characterized in that: A rotating base (102) is provided on the top of the bottom box (1), and a support frame (103) is located on the top of the rotating base (102); Bottom box (1) top control box (101); A water pump and a water tank are arranged in the bottom box (1), and a heater is arranged in the water tank; The fog cannon barrel comprises an intermediate barrel (201) connected to a support frame (103) via a rotating shaft (204); A conical cylinder (202) is provided at one end of the middle cylinder (201), and a nozzle mechanism (4) is provided on a side of the conical cylinder (202) away from the middle cylinder (201); A fan (203) is provided at the other end of the middle tube (201); A hydraulic cylinder (205) is provided between the bottom end of the support frame (103) and the conical cylinder (202).

3. A fog cannon suitable for different dust reduction requirements according to claim 1, characterized in that: The heating mechanism (3) comprises a fixed sleeve (301) fixedly sleeved on the outside of the fog cannon barrel; A heating ring (302) is provided inside the fixing sleeve (301).

4. A fog cannon suitable for different dust reduction requirements according to claim 1, characterized in that: The nozzle mechanism (4) comprises a fixing ring (401) fixedly connected to the barrel of the fog cannon; A connecting ring (402) is movably connected inside the fixing ring (401); A nozzle assembly (405) is provided on a side of the connecting ring (402) away from the fixing ring (401); An annular water pipe (403) is provided inside the fixing ring (401), and the annular water pipe (403) is externally connected to a water inlet pipe (404); A plurality of water inlet holes (406) are provided in the connecting ring (402), and the water inlet holes (406) are connected to the nozzle assembly (405); The annular water pipe (403) is provided with a plurality of branch pipes (407), and the branch pipes (407) are communicated with the water inlet holes (406).

5. A fog cannon suitable for different dust reduction requirements according to claim 4, characterized in that: The connecting ring (402) is rotatably connected to the fixing ring (401); A limiting ring (408) is provided on the outer periphery of the connecting ring (402), and a plane bearing (481) is provided on the side of the limiting ring (408) away from the barrel of the fog cannon; The branch pipe (407) comprises a water outlet pipe (471) connected to the annular water pipe (403); the water outlet pipe (471) is sleeved with a sleeve (472); and the sleeve (472) is slidably connected to the water outlet pipe (471); A sealing gasket (473) is provided on one side of the sleeve (472) close to the connecting ring (402), the sealing gasket (473) abuts against the connecting ring (402), and a first spring (474) is provided on the other side of the sleeve (472); The first spring (474) is in a compressed state; The nozzle group (405) comprises a plurality of first nozzles (451), second nozzles (452) and third nozzles (453), and the number of branch pipes (407), first nozzles (451), second nozzles (452) and third nozzles (453) is the same; The first nozzle (451), the second nozzle (452) and the third nozzle (453) are evenly arranged in sequence along the circumferential direction of the connecting ring (402) in the order of ABCABC; The turning angle between two adjacent first nozzles (451), the turning angle between two adjacent branch pipes (407), the turning angle between two adjacent second nozzles (452) and the turning angle between two adjacent third nozzles (453) are the same.

6. A fog cannon suitable for different dust reduction requirements according to claim 5, characterized in that: The number of the water inlet holes (406) is the sum of the number of the first nozzle (451), the second nozzle (452) and the third nozzle (453); The fixing ring (401), the connecting ring (402) and the annular water pipe (403) are coaxial, and the water inlet holes (406) are evenly distributed in an annular shape with the axis of the connecting ring (402) as the axis.

7. A fog cannon suitable for different dust reduction requirements according to claim 4, characterized in that: The connecting ring (402) is inserted into the interior of the fixing ring (401); It comprises a plurality of connecting rings (402), one of which is located inside the fixing ring (401), and the other connecting rings (402) are placed inside the bottom box (1); A magnet (409) is provided inside the fixing ring (401), and the magnet (409) attracts the connecting ring (402); The branch pipe (407) includes a plug-in pipe (475) connected to the annular water pipe (403), and the plug-in pipe (475) is plugged into the water inlet hole (406); The number of the plug-in tubes (475) and the number of the water inlet holes (406) are the same.

8. A fog cannon suitable for different dust reduction requirements according to any one of claims 1 to 7, characterized in that: A support column (5) is provided in the barrel of the fog cannon; A plurality of first support rods (501) and second support rods (502) are provided at both ends of the support column (5); The ends of the first support rod (501) and the second support rod (502) are both connected to the inner wall of the fog cannon barrel; The guide plate (6) is arranged between the support column (5), the first support rod (501), the second support rod (502) and the inner wall of the fog cannon barrel.

9. A fog cannon suitable for different dust reduction requirements according to claim 8, characterized in that: The guide plate (6) is an elastic plate, one side of the guide plate (6) is connected to the first support rod (501), and a connecting rod (702) is provided on the side of the guide plate (6) close to the second support rod (502); A rotating ring (701) is provided at one end of the supporting column (5) close to the second supporting rod (502); An adjustment structure (7) is provided on the outer periphery of the fog cannon barrel; One end of the connecting rod (702) is connected to the rotating ring (701), and the other end is connected to the adjusting mechanism (7).

10. A fog cannon suitable for different dust reduction requirements according to claim 9, characterized in that: A plurality of movable holes are provided on the outer circumference of the fog cannon barrel, the number of the movable holes being the same as the number of the connecting rods (702), and the connecting rods (702) slide along the movable holes; The adjustment mechanism (7) comprises a positioning ring (704) and a movable ring (703) sleeved on the outer circumference of the fog cannon barrel; The positioning ring (704) is fixedly connected to the barrel of the fog cannon; The movable ring (703) is rotated outside the barrel of the fog cannon and is fixedly connected to the connecting rod (702); A plurality of fixing blocks (705) are provided on the outer peripheral surface of the fog cannon barrel, and the movable ring (703) is located between the positioning ring (704) and the fixing blocks (705); A second spring (706) is provided in the fixed block (705), and the second spring (706) is in a compressed state; A limiting ball (707) is provided at the end of the second spring (706); A plurality of circular grooves are provided on the side of the movable ring (703), and the circular grooves are adapted to fit the limiting balls (707).

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