Spraying structure for fog gun machine

Abstract

The invention relates to the field of construction dust removal, and particularly discloses a spraying structure for a fog gun machine, which comprises a central cylinder, side cylinders are fixed at two ends of the central cylinder, outer air cylinders are arranged in the side cylinders, intervals are formed between the peripheries of the outer air cylinders and the inner walls of the side cylinders, and an atomizing assembly is fixed on the inner wall of one end, far away from the central cylinder, of each outer air cylinder and atomizes liquid water. The two fan blades are driven by the power system to rotate, so that air is blown out from the outer air barrels on the two sides, water flow is atomized through the atomization assemblies at the ends of the outer air barrels, atomized water drops are blown into the air along with the air, and therefore flying dust of the air is reduced, and dust removal operation is achieved; external air enters from the end, close to atomized water drops of the outer air cylinder, of the side cylinder, dust entering the center cylinder is reduced due to the fact that dust flying around the end, spraying out the atomized water drops, of the outer air cylinder is little, and meanwhile dust entering can be further reduced through the adsorption effect of the dust filtering assembly on the dust, so that the service life of the air purifier is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction dust removal, in particular to a spraying structure for a fog cannon. BACKGROUND

[0002] During construction, the construction site will usually generate dust due to the construction, which is easy to pollute the construction environment and affect the health of the workers. The existing construction site dust removal device mainly sprays misty water droplets through a fog cannon, and the misty water droplets adhere to the dust to achieve dust removal. However, the traditional fog cannon sucks dust in the air into the fog cannon at one end of the air inlet during operation, and blows the atomized water droplets into the air at the other end of the air outlet. Moreover, the air inlet end is far away from the atomization end, which leads to the air inlet end easily sucking dust in the air into the fog cannon. With the accumulation of dust in the fog cannon, the normal operation of the fog cannon will be affected, and the fog cannon will be damaged seriously. SUMMARY

[0003] The present application aims to provide a spraying structure for a fog cannon to overcome the above-mentioned defects in the prior art.

[0004] According to the spraying structure for a fog cannon of the present application, the center tube is provided with a side tube at both ends, the side tube is provided with an outer air tube, the outer air tube is formed with a gap between the outer periphery and the inner wall of the side tube, the outer air tube is fixed with an atomization assembly on the inner wall of the end away from the center tube, the atomization assembly atomizes liquid water, the center tube is fixed with two symmetrical and coaxial air pipes, the air pipes are formed with a gap between the outer periphery and the inner wall of the center tube, the end of the outer air tube close to the air pipe is sleeved on the outer periphery of the adjacent end of the air pipe, the air pipe is rotatably provided with a shaft sleeve, the shaft sleeve is fixed with a plurality of circumferentially uniformly distributed fan blades on the outer periphery, the fan blades in the two air pipes are opposite in inclination direction, and the fan blades are driven to rotate by a power system, so that the airflow enters through the gap between the side tube and the outer air tube, and is blown out by the outer air tube after passing through the adjacent air pipe.

[0005] Preferably, the diameter of the outer air tube gradually decreases in the direction away from the center tube, the peripheral wall of the side tube is parallel to the peripheral wall of the outer air tube, and a plurality of circumferentially uniformly distributed first connecting plates are fixed between the outer periphery of the outer air tube and the inner wall of the side tube.

[0006] Preferably, the outer wind cylinder is fixed with a guide part at one end away from the center cylinder, the guide part is curved in arc shape along the radial direction of the outer wind cylinder, the atomization assembly comprises a water distribution pipe and a plurality of atomization nozzles, the atomization nozzles are communicated with the water distribution pipe, the water distribution pipe is in the shape of a ring and is fixed on the inner wall of the outer wind cylinder, the plurality of atomization nozzles are fixed on the water distribution pipe and are uniformly distributed in the circumferential direction with the axis of the outer wind cylinder as the center, the nozzle of the atomization nozzle is directed to the axis direction of the outer wind cylinder, the water distribution pipe is fixed with a connecting pipe communicated therewith, and the connecting pipe is connected with the water supply pump through a pipeline.

[0007] Preferably, the inner wall of the end of the outer wind cylinder close to the air pipe is fixed with a sealing ring protruding inward, and the sealing ring is in abutment with the outer periphery of the air pipe.

[0008] Preferably, the inner wall of the outer wind cylinder is fixed with an inner wind cylinder, the inner wind cylinder is arranged between the atomization assembly and the air pipe, and the middle section of the inner wind cylinder is contracted to form a necked shape towards the axis direction.

[0009] Preferably, a plurality of dust filtering assemblies are arranged in the space between the side cylinder and the outer wind cylinder, the dust filtering assembly comprises an outer clamping plate and an inner clamping plate, the outer clamping plate is fixedly attached to the inner wall of the side cylinder, the inner clamping plate is fixedly attached to the outer periphery of the outer wind cylinder, and a plurality of filter elements are fixed between the outer clamping plate and the inner clamping plate.

[0010] Preferably, the filter element is in the shape of a wave, and a wave-shaped channel is formed between adjacent filter elements, and the airflow flows in the channel when the fan blades rotate.

[0011] Preferably, the power system comprises a center shaft, the shaft sleeve is sleeved and fixed on the center shaft, two bearings are sleeved on the center shaft, two symmetrical fixing frames are fixed on the inner wall of the air pipe, the arc-shaped plate is detachably fixed on the fixing frame, the arc-shaped plate and the fixing frame clamp the outer ring of the bearing, the inner ring of the bearing is fixed on the outer periphery of the center shaft, the machine shell is fixed on the lower side of the center cylinder, the motor is fixed on the machine shell, the output shaft of the motor extends into the machine shell, and the output shaft of the motor and the center shaft are driven by a belt.

[0012] The present application has the advantages that: the present application drives two fan blades to rotate through the power system, so as to realize blowing air from the outer wind cylinder on both sides, the atomization assembly at the end of the outer wind cylinder atomizes water flow, and the atomized water droplets are blown into the air by air, so as to realize reducing dust in air and realizing dust removal operation, in this process, external air enters through the side cylinder close to the end of the outer wind cylinder where the atomized water droplets are sprayed, the dust around the end of the outer wind cylinder where the atomized water droplets are sprayed is less, so as to reduce the dust into the center cylinder, and the adsorption of the dust filtering assembly can further reduce the dust, so as to improve the service life of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a schematic diagram of air flow movement in the working state of the present application; Figure 3 is an exploded view of the present application; Figure 4 is a structural schematic diagram of the inner wind cylinder in the present application; Figure 5 is a structural schematic diagram of the power system in the present application; Figure 6 is a structural schematic diagram of the dust filtering assembly in the present application; Figure 7 is a structural schematic diagram of the filter core in the present application.

[0014] In the drawings: 10, central cylinder; 11, air pipe; 12, shaft sleeve; 13, fan blade; 14, second connecting plate; 20, side cylinder; 21, first connecting plate; 30, outer wind cylinder; 31, flow guide part; 32, inner wind cylinder; 33, sealing ring; 40, machine shell; 41, central shaft; 42, motor; 43, arc-shaped plate; 44, fixing frame; 45, belt; 50, water distribution pipe; 51, atomizing nozzle; 52, connecting pipe; 60, outer clamping plate; 61, inner clamping plate; 62, filter core. DETAILED DESCRIPTION

[0015] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the drawings shown in the accompanying drawings, and are only for the convenience of describing the simplified description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Figure 1

[0016] In order to make the purpose and advantages of the present application more clear and explicit, the present application will be specifically described below in combination with embodiments, and it should be understood that the following text is only used to describe one or several specific embodiments of the present application, and does not strictly limit the protection scope of the present application, and as used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human error, and the specific features of the spray structure of the fog cannon machine are described in detail as follows: One embodiment of the present application: Referring to Figures 1-7 ​This invention provides a spray structure for a fog cannon, including a central cylinder 10, with side cylinders 20 fixed at both ends of the central cylinder 10. An outer air duct 30 is disposed inside the side cylinder 20, with a gap formed between the outer periphery of the outer air duct 30 and the inner wall of the side cylinder 20. An atomizing component is fixed on the inner wall of the end of the outer air duct 30 away from the central cylinder 10, atomizing the liquid water. Two symmetrically arranged air ducts 11, coaxial with the central cylinder 10, are fixed inside the central cylinder 10. Four circumferentially oriented second connecting plates are fixed between the outer periphery of the air ducts 11 and the inner wall of the side cylinders 20. 14. A gap is formed between the outer periphery of the air duct 11 and the inner wall of the central cylinder 10. The end of the outer air duct 30 near the air duct 11 is sleeved on the outer periphery of the end of the adjacent air duct 11. A bushing 12 is rotatably installed inside the air duct 11. Multiple fan blades 13 are fixed on the outer periphery of the bushing 12. The fan blades 13 in the two air ducts 11 are tilted in opposite directions. The two fan blades 13 are driven to rotate by the power system, so that the airflow enters through the gap between the side cylinder 20 and the outer air duct 30, and then passes through the adjacent air duct 11 and is blown out by the outer air duct 30.

[0017] Reference Figure 3 The diameter of the outer duct 30 gradually decreases in the direction away from the central duct 10. The gradual decrease in the diameter of the outer duct 30 increases the airflow velocity. The peripheral wall of the side duct 20 is parallel to the peripheral wall of the outer duct 30. Multiple circumferentially evenly distributed first connecting plates 21 are fixed between the outer periphery of the outer duct 30 and the inner wall of the side duct 20. The arrangement of the first connecting plates 21 ensures the uniformity of the gap width between the outer duct 30 and the side duct 20, and improves the stability of the airflow.

[0018] Reference Figure 4 A guide section 31 is fixed at one end of the outer air duct 30 away from the central tube 10. The guide section 31 is curved outward in an arc shape along the radial direction of the outer air duct 30. The setting of the guide section 31 changes the airflow direction entering the side tube 20 and isolates the water droplets just sprayed from the outer air duct 30, reducing the atomized water droplets being sucked into the side tube 20 by the airflow and reducing the impact of moisture on the power system in the central tube 10. The atomizing component includes a water distribution pipe 50 and multiple atomizing nozzles 51. The atomizing nozzles 51 are connected to the water distribution pipe 50. The water distribution pipe 50 is circular and fixed on the inner wall of the outer air duct 30. The multiple atomizing nozzles 51 are fixed on the water distribution pipe 50 and are evenly distributed circumferentially with the axis of the outer air duct 30 as the center. The nozzles of the atomizing nozzles 51 face the axis of the outer air duct 30. A connecting pipe 52 connected to the water distribution pipe 50 is fixed on the water distribution pipe 50. The connecting pipe 52 is connected to the water supply pump through a pipe.

[0019] Reference Figure 4 A sealing ring 33 with an inward protrusion is fixed on the inner wall of the outer air duct 30 near the air duct 11. The sealing ring 33 abuts against the outer periphery of the air duct 11. The setting of the sealing ring 33 increases the airtightness between the outer air duct 30 and the air duct 11.

[0020] Reference Figure 2 , Figure 4 An inner air duct 32 is fixed to the inner wall of the outer air duct 30. The inner air duct 32 is disposed between the atomizing component and the air duct 11. The middle section of the inner air duct 32 contracts towards its axis to form a constricted shape. The constricted part of the inner air duct 32 further increases the airflow velocity, thereby increasing the initial velocity when the atomized water droplets are sprayed out, thereby increasing the dust removal range of the present invention.

[0021] Reference Figure 3 , Figure 6 , Figure 7 Multiple dust filter components are provided in the gap between the side cylinder 20 and the outer air duct 30. The dust filter components include an outer clamping plate 60 and an inner clamping plate 61. The outer clamping plate 60 is attached to the inner wall of the side cylinder 20, and the inner clamping plate 61 is attached to the outer periphery of the outer air duct 30. Multiple filter elements 62 are fixed between the outer clamping plate 60 and the inner clamping plate 61. The filter elements 62 are made of chemical fiber material and are wavy. A wavy channel is formed between adjacent filter elements 62. When the fan blade 13 rotates, the airflow flows in the channel. The wavy filter element 62 increases its contact area and contact angle with the air, thereby improving the dust adsorption effect of the filter element 62 on the air.

[0022] Reference Figures 1-3 , Figure 5 The power system includes a central shaft 41, a bushing 12 fitted and fixed on the central shaft 41, two bearings fitted on the central shaft 41, two symmetrically arranged fixing brackets 44 fixed on the inner wall of the air duct 11, an arc plate 43 detachably fixed on the fixing bracket 44, the arc plate 43 and the fixing bracket 44 clamp and fix the outer ring of the bearing, the inner ring of the bearing is fixed on the outer circumference of the central shaft 41, a housing 40 is fixed on the lower side of the central cylinder 10, a motor 42 is fixed on the housing 40, the output shaft of the motor 42 extends into the housing 40, and the output shaft of the motor 42 is driven by the central shaft 41 through a belt 45.

[0023] When in use, the present invention is fixed on a bracket on the base of the fog cannon and can rotate with the bracket. The motor 42 is connected to the power supply inside the base of the fog cannon, and the connecting pipe 52 is connected to the water supply system inside the fog cannon through a pipe.

[0024] The motor 42 is started, and the central shaft 41 is rotated through the belt 45, which causes the two bushings 12 on it to rotate, thereby driving the fan blades 13 to rotate, thus blowing air into the outer air ducts 30 on both sides. The outside airflow enters the central cylinder 10 through the gap between the side cylinder 20 and the outer air duct 30. During this process, the outside air adsorbs the dust in the filter element 62, thereby reducing the amount of dust entering the central cylinder 10.

[0025] At the same time, the water supply system inside the base of the fog cannon is activated, supplying water to the water distribution pipe 50. The water is atomized after passing through the atomizing nozzle 51. Under the action of the airflow inside the outer air duct 30, the atomized water droplets are sprayed into the air, thereby achieving dust removal.

[0026] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All such modifications fall within the protection scope of the present invention. The protection scheme of the present invention is defined by the appended claims.

Claims

1. A spray structure for a fog cannon, comprising a central cylinder (10), characterized in that: Both ends of the central cylinder (10) are fixed with side cylinders (20). An outer air duct (30) is provided inside the side cylinder (20). A gap is formed between the outer periphery of the outer air duct (30) and the inner wall of the side cylinder (20). An atomizing component is fixed on the inner wall of the end of the outer air duct (30) away from the central cylinder (10). The atomizing component atomizes liquid water. Two symmetrically arranged air ducts (11) are fixed inside the central cylinder (10) and are coaxial with the central cylinder (10). A gap is formed between the outer periphery of the air duct (11) and the inner wall of the central cylinder (10). (30) One end of the air duct (11) is sleeved on the outer periphery of the end of the adjacent air duct (11). A bushing (12) is rotatably installed inside the air duct (11). Multiple fan blades (13) are evenly distributed in the circumference on the outer periphery of the bushing (12). The fan blades (13) in the two air ducts (11) are tilted in opposite directions. The two fan blades (13) are driven to rotate by the power system, so that the airflow enters through the gap between the side tube (20) and the outer air duct (30), and then passes through the adjacent air duct (11) and is blown out by the outer air duct (30).

2. The spray structure for a fog cannon according to claim 1, characterized in that: The diameter of the outer duct (30) gradually decreases in the direction away from the central duct (10), the peripheral wall of the side duct (20) is parallel to the peripheral wall of the outer duct (30), and a plurality of circumferentially evenly distributed first connecting plates (21) are fixed between the outer periphery of the outer duct (30) and the inner wall of the side duct (20).

3. The spray structure for a fog cannon according to claim 2, characterized in that: The outer air duct (30) has a guide section (31) fixed at one end away from the central tube (10). The guide section (31) is curved outward in an arc shape along the radial direction of the outer air duct (30). The atomizing component includes a water distribution pipe (50) and multiple atomizing nozzles (51). The atomizing nozzles (51) are connected to the water distribution pipe (50). The water distribution pipe (50) is circular and fixed on the inner wall of the outer air duct (30). The multiple atomizing nozzles (51) are fixed on the water distribution pipe (50) and are evenly distributed around the axis of the outer air duct (30). The nozzles of the atomizing nozzles (51) face the axis of the outer air duct (30). A connecting pipe (52) is fixed on the water distribution pipe (50) and is connected to it. The connecting pipe (52) is connected to the water supply pump through a pipe.

4. The spray structure for a fog cannon according to claim 1, characterized in that: A sealing ring (33) with an inward protrusion is fixed on the inner wall of the end of the external air duct (30) near the air pipe (11), and the sealing ring (33) abuts against the outer periphery of the air pipe (11).

5. The spray structure for a fog cannon according to claim 1, characterized in that: An inner air duct (32) is fixed to the inner wall of the outer air duct (30). The inner air duct (32) is located between the atomizing component and the air duct (11). The middle section of the inner air duct (32) contracts towards its axis to form a constricted shape.

6. The spray structure for a fog cannon according to claim 1, characterized in that: Multiple dust filter components are provided in the gap between the side cylinder (20) and the outer air duct (30). The dust filter components include an outer clamping plate (60) and an inner clamping plate (61). The outer clamping plate (60) is attached to and fixed on the inner wall of the side cylinder (20), and the inner clamping plate (61) is attached to and fixed on the outer periphery of the outer air duct (30). Multiple filter elements (62) are fixed between the outer clamping plate (60) and the inner clamping plate (61).

7. The spray structure for a fog cannon according to claim 6, characterized in that: The filter element (62) is wavy, and a wavy channel is formed between adjacent filter elements (62). When the fan blade (13) rotates, the airflow flows in the channel.

8. The spray structure for a fog cannon according to claim 1, characterized in that: The power system includes a central shaft (41), a bushing (12) is fitted and fixed on the central shaft (41), two bearings are fitted on the central shaft (41), two symmetrically arranged fixing brackets (44) are fixed on the inner wall of the air duct (11), an arc plate (43) is detachably fixed on the fixing bracket (44), the arc plate (43) and the fixing bracket (44) clamp and fix the outer ring of the bearing, the inner ring of the bearing is fixed on the outer circumference of the central shaft (41), a housing (40) is fixed on the lower side of the central cylinder (10), a motor (42) is fixed on the housing (40), the output shaft of the motor (42) extends into the housing (40), and the output shaft of the motor (42) is driven by a belt (45) to the central shaft (41).

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