A dust faller for construction work

Abstract

The application discloses dust falling equipment for building construction and relates to the technical field of dust falling equipment. The dust falling equipment comprises a base, a mounting frame is rotationally connected to a circular opening in the top of the base through a bearing, a gear disc one is rotationally connected to the mounting frame through a motor, a gear ring two is meshingly connected to the outer side of the gear disc one, the gear ring two is fixed to the top of the base, a filter and a high-pressure water pump are mounted on the rear side of the mounting frame from left to right, the filter is connected to the high-pressure water pump through a pipeline, the cooperation between the air pipe and the adjusting assembly is achieved, the flow rate of the sprayed gas is increased by adjusting the size of the inner cavity of the air inlet pipeline under the maximum basic power of the equipment, and the spraying distance is improved; the cooperation between the outer pipe and the flared assembly is achieved, and the spraying coverage is simultaneously improved on the basis of the increased spraying distance.

Description

Technical Field

[0001] This invention relates to the field of dust suppression equipment technology, specifically to a dust suppression device used in building construction. Background Technology

[0002] Dust pollution is a common and serious environmental and health problem during construction. Construction activities such as earthwork excavation, material transportation, concrete mixing, and demolition operations generate a large amount of particulate matter. This dust not only affects the air quality at the construction site but may also spread to the surrounding areas, adversely impacting visibility, the operation of machinery and equipment, and the urban environment. Therefore, equipment such as fog cannons, spray piles, and perimeter sprinkler systems are widely used.

[0003] However, existing fog cannons require careful placement and adjustment of parameters such as spray pitch angle and reciprocating rotation amplitude based on the actual dust suppression area. Because the spray nozzle diameter is relatively fixed and the spray distance is related to fan power, when dealing with large-area construction sites with significant distances, if the fan power is at maximum and the spray distance is insufficient, the equipment needs to be moved towards the dust suppression area, and the reciprocating rotation amplitude and frequency adjusted to increase the water mist coverage. In dusty construction sites with prolonged operation, high-frequency reciprocating rotation can reduce the lifespan of the drive motor, while lower frequency rotation results in longer pauses during spraying, affecting the dust suppression effect.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0005] The purpose of this invention is to provide a dust suppression device for building construction to solve the problems mentioned in the background. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dust suppression device for building construction, comprising a base, a mounting frame rotatably connected to a circular opening at the top of the base via a bearing, a geared disc connected to the mounting frame via a motor, a geared ring engaged with the outer side of the geared disc, the geared ring fixed to the top of the base, a filter and a high-pressure water pump sequentially mounted from left to right on the rear side of the mounting frame, the filter connected to the high-pressure water pump via a pipe, a bracket movably connected to the top column of the mounting frame, the bottom right side of the bracket connected to the mounting frame via an electric push rod, a duct fixed to the upper end of the bracket, an outer pipe slidably connected to the outer side of the duct, a fixed frame installed at the left end of the inner cavity of the duct, a drive fan rotatably mounted on the left side of the fixed frame, the right side of the fixed frame connected to the outer pipe via an adjusting component, flared components provided on both sides of the right end of the outer pipe, and atomizing nozzles installed on both the flared components and the right end of the outer pipe, the atomizing nozzles connected to the high-pressure water pump via flexible hoses.

[0007] Preferably, the inner cavity of the duct is designed as an hourglass shape, with the diameter of the cavity on the left side of the hourglass shape being smaller than the diameter of the cavity on the right side. The hourglass-shaped inner cavity of the duct is used for airflow regulation.

[0008] Preferably, the adjustment component includes a mounting column, which is installed on the right side of the fixed frame. An adjustment element is slidably connected to the outer groove of the mounting column via a second electric push rod. A connecting rod is fixed to the outer right end of the adjustment element, and the upper end of the connecting rod is connected to the inner wall of the outer tube.

[0009] Preferably, the adjusting component is designed as a conical structure, and the teardrop-shaped adjusting component is located in the left section of the duct cavity. The teardrop shape of the adjusting component gradually decreases from left to right. The adjusting component is used to adjust the airflow gap in the left section of the duct.

[0010] Preferably, the flaring assembly includes two mounting ports, which are located on the outer right side of the outer tube. A connecting column is rotatably mounted on the inner side of each mounting port. A movable plate is fixed on the outer side of each connecting column. An elastic telescopic rod is rotatably connected to each movable plate via an outer end protrusion. The other end of each elastic telescopic rod is rotatably connected to the outer side of the air duct.

[0011] Preferably, the shape of the installation opening corresponds to the shape of the notch on the right side of the air duct, and the notch on the right side of the air duct is used for the rotation adjustment of the movable plate.

[0012] Preferably, the movable plate is designed as a triangular structure, and an atomizing nozzle is fixed on the right inclined surface of the movable plate, with the two movable plates arranged opposite each other.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention, by incorporating an adjustment component and an air duct, allows the gap between the adjustment component and the inner wall of the left section of the air duct cavity to gradually decrease when the position of the adjustment component is adjusted to the right on the mounting column using the second electric actuator. This increases the airflow velocity in the right section of the air duct cavity, thereby further increasing the spray distance of the water mist when the driving fan is at its maximum power, through the adjustment of the position of the adjustment component.

[0015] This invention, by incorporating an adjustment component, an air duct, and a flaring component, allows the outer pipe to slide to the right on the air duct via a connecting rod during the adjustment process. This, combined with the elastic telescopic rod pulling the movable plates, causes the two movable plates to expand outwards, thereby increasing the coverage area of ​​the water mist sprayed from the right end of the air duct. When the motor on the mounting frame drives the gear disc to reciprocate at a small angle on the gear ring, the sprayed water mist can cover a larger dust-reducing area, reducing the problem of untimely water mist coverage caused by large-amplitude reciprocating rotation and extending the equipment's service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front sectional structure of the air duct, regulating component and outer pipe of the present invention;

[0017] Figure 2 This is a right-side view of the base and mounting bracket of the present invention;

[0018] Figure 3 This is a schematic diagram of the overall rear view structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the overall structure and the flared assembly of the present invention after unfolding.

[0020] Figure 5 This is a schematic cross-sectional view of the duct and outer pipe of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the fixing frame, driving fan and adjustment component of the present invention;

[0022] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0023] Figure 8 This is a schematic diagram of the disassembled structure of the outer tube and flared assembly of the present invention.

[0024] In the diagram: 1. Base; 2. Mounting bracket; 3. Motor; 4. Gear disc one; 5. Gear ring two; 6. Filter; 7. High-pressure water pump; 8. Bracket; 9. Electric actuator one; 10. Air duct; 11. Fixing bracket; 12. Drive fan; 13. Adjustment assembly; 131. Mounting column; 132. Electric actuator two; 133. Adjustment component; 134. Connecting rod; 14. Outer tube; 15. Flaring assembly; 151. Mounting port; 152. Connecting column; 153. Movable plate; 154. Elastic telescopic rod; 16. Atomizing nozzle. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0026] Please see Figures 1 to 8 This invention provides a technical solution: a dust suppression device for building construction, comprising a base 1, a mounting frame 2 rotatably connected to a circular opening at the top of the base 1 via a bearing, a gear disc 4 rotatably connected to the mounting frame 2 via a motor 3, a gear ring 5 meshing with the outer side of the gear disc 4, the gear ring 5 being fixed to the top of the base 1, a filter 6 and a high-pressure water pump 7 sequentially mounted from left to right on the rear side of the mounting frame 2, the filter 6 being connected to the high-pressure water pump 7 via a pipe, a bracket 8 movably connected to the top column of the mounting frame 2, the bottom right side of the bracket 8 being connected to the mounting frame 2 via an electric push rod 9, a duct 10 fixed to the upper end of the bracket 8, the inner cavity of the duct 10 being designed as an hourglass shape, the diameter of the cavity on the left side of the hourglass shape being smaller than the diameter of the cavity on the right side, the hourglass-shaped inner cavity of the duct 10 being used for airflow speed adjustment, an outer pipe 14 slidably connected to the outer side of the duct 10, and a fixing frame 11 installed at the left end of the inner cavity of the duct 10. A drive fan 12 is rotatably mounted on the left side of the fixed frame 11. The right side of the fixed frame 11 is connected to the outer tube 14 through an adjustment component 13. The adjustment component 13 includes a mounting column 131, which is installed on the right side of the fixed frame 11. An adjustment element 133 is slidably connected to the outer groove of the mounting column 131 through a second electric push rod 132. The adjustment element 133 is designed as a conical structure. The teardrop-shaped structure of the adjustment element 133 is set in the left section of the inner cavity of the air duct 10. The teardrop shape of the adjustment element 133 gradually decreases from left to right. The adjustment element 133 is used to adjust the airflow gap in the left section of the air duct 10. A connecting rod 134 is fixed to the outer right end of the adjustment element 133. The upper end of the connecting rod 134 is connected to the inner wall of the outer tube 14. Flaring components 15 are set on both sides of the right end of the outer tube 14. Atomizing nozzles 16 are installed on both the flaring components 15 and the right end of the outer tube 14. The atomizing nozzles 16 are connected to the high-pressure water pump 7 through a hose.

[0027] During operation, the operator uses the controller to activate the first electric actuator 9 to adjust the bracket 8 and the air duct 10 upwards or downwards to adjust the spray angle accordingly. At the same time, the operator activates the drive fan 12 and adjusts the corresponding parameters according to the site environment, so that the airflow passes through the air duct 10 and blows out the sprayed atomized water to suppress dust. When the equipment drive fan 12 is at its maximum power and it is necessary to increase the spray dust suppression distance, the operator activates the second electric actuator 132. The second electric actuator 132 adjusts the position of the adjusting component 133 to the right on the mounting column 131, so that the gap between the outer maximum diameter of the adjusting component 133 and the inner wall of the air duct 10 gradually decreases. The airflow velocity increases after passing through the gap between the adjusting component 133 and the inner wall of the air duct 10. At the same time, the adjusting component 133 drives the outer tube 14 to slide to the right on the air duct 10 through the connecting rod 134, increasing the length of the air duct 10, so that the airflow sprayed from the right end of the air duct 10 carries the water mist to spray a greater distance. Example 2

[0028] Based on Example 1, please refer to Figures 1 to 8 The outer tube 14 has two flared assemblies 15 on both sides of its right end. The flared assembly 15 includes two mounting ports 151. The two mounting ports 151 are opened on the outer right side of the outer tube 14. A connecting post 152 is rotatably installed on the inner side of each of the two mounting ports 151. A movable plate 153 is fixed on the outer side of each of the two connecting posts 152. The shape of the mounting port 151 corresponds to the shape of the notch on the right side of the air duct 10. The notch on the right side of the air duct 10 is used for the rotation adjustment of the movable plate 153. The movable plate 153 is designed with a triangular structure. An atomizing nozzle 16 is fixed on the inclined surface of the right end of the movable plate 153. The two movable plates 153 are arranged opposite to each other. Both movable plates 153 are rotatably connected to an elastic telescopic rod 154 through an outer end protrusion. The other end of the two elastic telescopic rods 154 is rotatably connected to the outer side of the air duct 10.

[0029] When the dust suppression area is large, the position of the adjusting component 133 is adjusted to the right on the mounting column 131 by the second electric actuator 132. This gradually reduces the gap between the outermost diameter of the adjusting component 133 and the inner wall of the air duct 10, increasing the airflow velocity at the right end of the air duct 10. At the same time, when the adjusting component 133 moves, it simultaneously drives the outer pipe 14 to move to the right on the air duct 10. The movable plate 153 is pulled by the elastic telescopic rod 154, which drives the connecting column 152 to rotate outward in the mounting port 151, thereby unfolding the two movable plates 153. At this time, when the medium-high speed airflow is sprayed out through the position of the movable plate 153, the spray range of the air duct 10 is increased. In addition, the controller starts the motor 3, which reciprocates at a small angle through the meshing of the gear disc 4 and the gear ring 5, so that the mounting frame 2 reciprocates at a small amplitude on the base 1, which can make the sprayed water mist cover a large area.

[0030] Working principle: When using this dust suppression equipment for construction, the operator first turns on the filter 6 and the high-pressure water pump 7 through the controller. The water containing impurities is filtered and sent to the high-pressure water pump 7 for pressurization. Then, it is sprayed out and atomized through the atomizing nozzle 16. Next, the operator turns on the first electric push rod 9 to adjust the bracket 8 and the air duct 10 to adjust the spray angle accordingly. At the same time, the driving fan 12 is turned on and the corresponding parameters are adjusted according to the site environment. This allows the airflow to blow out the atomized water after passing through the air duct 10 to suppress dust.

[0031] During the above process, when the equipment drives the fan 12 at its maximum power and it is necessary to increase the spray dust suppression distance, the operator turns on the second electric actuator 132. The second electric actuator 132 adjusts the position of the adjusting component 133 to the right on the mounting column 131, so that the gap between the outer maximum diameter of the adjusting component 133 and the inner wall of the air duct 10 gradually decreases. The air velocity increases after passing through the gap between the adjusting component 133 and the inner wall of the air duct 10. At the same time, the adjusting component 133 drives the outer tube 14 to slide to the right on the air duct 10 through the connecting rod 134, increasing the length of the air duct 10, so that the airflow sprayed from the right end of the air duct 10 can spray water mist a longer distance.

[0032] Based on the above, when the dust suppression area is large, during the adjustment process of the above-mentioned adjusting component 133, when the outer pipe 14 moves to the right on the air duct 10, the movable plate 153 is pulled by the elastic telescopic rod 154, which drives the connecting column 152 to rotate outward in the mounting port 151, thereby unfolding the two movable plates 153. At this time, when the above-mentioned medium and high speed airflow is ejected through the position of the movable plate 153, the spray range of the air duct 10 is increased. In addition, the controller starts the motor 3 to reciprocate at a small angle through the meshing of the gear disc 4 and the gear ring 5, so that the mounting frame 2 reciprocates at a small amplitude on the base 1.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust suppression device for building construction, characterized in that: The system includes a base (1), a mounting bracket (2) rotatably connected to a circular opening at the top of the base (1) via a bearing, a gear plate (4) rotatably connected to the mounting bracket (2) via a motor (3), a gear ring (5) meshing with the outer side of the gear plate (4), the gear ring (5) being fixed to the top of the base (1), a filter (6) and a high-pressure water pump (7) being installed sequentially from left to right on the rear side of the mounting bracket (2), the filter (6) being connected to the high-pressure water pump (7) via a pipe, a bracket (8) being movably connected to the top column of the mounting bracket (2), and the bottom right side of the bracket (8) being connected to the mounting bracket via an electric actuator (9). The bracket (2) is connected to the bracket (8). The upper end of the bracket (8) is fixed with a duct (10). The outer side of the duct (10) is slidably connected with an outer pipe (14). The left end of the inner cavity of the duct (10) is equipped with a fixed bracket (11). The left side of the fixed bracket (11) is rotatably equipped with a drive fan (12). The right side of the fixed bracket (11) is connected to the outer pipe (14) through an adjustment component (13). The right end of the outer pipe (14) is provided with flaring components (15). The right end of the flaring components (15) and the right end of the outer pipe (14) are both equipped with atomizing nozzles (16). The atomizing nozzles (16) are connected to a high-pressure water pump (7) through a hose. The adjustment assembly (13) includes a mounting post (131), which is installed on the right side of the fixed frame (11). An adjustment component (133) is slidably connected to the outer groove of the mounting post (131) via a second electric push rod (132). The inner cavity of the air duct (10) is designed as an hourglass shape. The diameter of the cavity on the left side of the hourglass shape of the air duct (10) is smaller than the diameter of the cavity on the right side. The inner cavity of the air duct (10) is used for airflow speed regulation. The adjusting component (133) is designed as a conical structure. The teardrop-shaped structure of the adjusting component (133) is set in the left section of the inner cavity of the air duct (10). The teardrop shape of the adjusting component (133) gradually decreases from left to right. The adjusting component (133) is used to adjust the airflow gap in the left section of the air duct (10). The flared assembly (15) includes two mounting ports (151), which are located on the outer right side of the outer tube (14). A connecting column (152) is rotatably mounted on the inner side of each of the two mounting ports (151). A movable plate (153) is fixed on the outer side of each of the two connecting columns (152). An elastic telescopic rod (154) is rotatably connected to each of the two movable plates (153) through an outer end protrusion. The other end of the elastic telescopic rod (154) is rotatably connected to the outer side of the air duct (10).

2. The dust suppression equipment for building construction according to claim 1, characterized in that: The adjusting component (133) has a connecting rod (134) fixed to its right outer end, and the upper end of the connecting rod (134) is connected to the inner wall of the outer tube (14).

3. The dust suppression equipment for building construction according to claim 1, characterized in that: The shape of the installation port (151) corresponds to the shape of the notch on the right side of the air duct (10), and the notch on the right side of the air duct (10) is used for the rotation adjustment of the movable plate (153).

4. A dust suppression device for building construction according to claim 1, characterized in that: The movable plate (153) is designed as a triangular structure. An atomizing nozzle (16) is fixed on the right inclined surface of the movable plate (153). The two movable plates (153) are arranged opposite to each other.

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