Rotary dust falling device for construction

Abstract

This utility model provides a rotary dust suppression device for construction, relating to the technical field of construction safety facilities. Specifically, it includes a base, with a pedestal rotatably connected to the top of the base. A U-shaped fixed seat and two support plates are disposed above the pedestal, both fixedly mounted on the bottom of the U-shaped fixed seat. A first base tube is disposed inside the U-shaped fixed seat, penetrating and rotatably connected to it. A first servo motor is fixedly mounted inside the U-shaped fixed seat, and a first worm gear is fixedly mounted at the output end of the first servo motor. This application uses a transmission structure composed of the first servo motor, the first worm gear, and the first worm wheel to drive the first base tube and several nozzles to rotate, enabling the nozzles to operate in a circular dynamic dust suppression manner, increasing the coverage area of ​​a single set of nozzles and improving the dust removal rate. Furthermore, the nozzles are connected to the connecting pipe via threads, forming independent replaceable units, thus improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of safety facilities technology for building engineering, and more specifically to a rotary dust suppression device for building construction. Background Technology

[0002] During the construction process, earthwork excavation, concrete mixing, material transportation, and structural demolition generate a large amount of dust, which not only pollutes the surrounding atmospheric environment but also harms the respiratory health of construction workers. In addition, dust accumulation may also affect the normal operation of construction equipment and construction accuracy.

[0003] Chinese Patent Publication No. CN216825442U discloses a dust suppression device for construction work, relating to the technical field of construction equipment. This utility model includes a vehicle body with a water storage tank on its top. Support frames are fixedly connected to the front and rear ends of the top of the vehicle body. An adjusting plate is provided between the tops of the support frames. The inner side of the support frames is connected to the water storage tank via a dust suppression component. An adjusting assembly is located at the bottom of the adjusting plate. The dust suppression component includes a water pump, a water suction pipe, a water delivery pipe, a flexible hose, a conveying pipe, a spray pipe, and a misting nozzle. The adjusting assembly includes an adjusting screw, a lifting plate, a slider, and a sliding rod. This utility model is a dust suppression device for construction work that can improve the range and efficiency of dust suppression, enabling dust suppression operations, ensuring the environment of the construction site, and has the function of adjusting the up and down movement of the misting nozzle, which can increase the spray range of the misting nozzle, reduce its limitations, improve the practicality of the device, ensure the environment of the construction site, and benefit the health of construction workers.

[0004] In the existing technology, during the use of a dust suppression device for construction, the spraying range can only be expanded by "turning the adjusting screw to move the atomizing nozzle up and down". The adjustment dimension is limited to "vertical height" and cannot change the horizontal direction and angle of the spray. Therefore, we have made an improvement and proposed a rotary dust suppression device for construction. Utility Model Content

[0005] The purpose of this utility model is to address the problem that the static spraying dust suppression device used in construction has a limited coverage area.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A rotary dust suppression device for construction work uses a transmission structure consisting of a first servo motor, a first worm gear, and a first worm wheel to drive a nozzle to rotate and form a ring-shaped dynamic dust suppression, thereby improving the aforementioned problems.

[0007] The application is as follows: A rotary dust suppression device for construction includes a base, a pedestal rotatably connected to the top of the base, a U-shaped fixed seat and two support plates disposed above the pedestal, both support plates being fixedly installed at the bottom of the U-shaped fixed seat, a first base tube disposed inside the U-shaped fixed seat and rotatably connected to the U-shaped fixed seat, a first servo motor fixedly installed inside the U-shaped fixed seat, a first worm gear fixedly installed at the output end of the first servo motor, a first worm wheel meshing with the outer side of the first worm gear, the first worm wheel and the first worm gear being rotatably connected to the U-shaped fixed seat, the first worm wheel being fixedly installed on the outer side of the first base tube, a plurality of connecting pipes fixedly installed on one side of the first base tube, and an output groove mates with the plurality of connecting pipes on the first base tube, a nozzle being threadedly connected to the outer side of each of the plurality of connecting pipes, and a water tank fixedly installed on the top of the base.

[0008] As a preferred technical solution of this application, a fixed water pipe is provided inside the water tank. The fixed water pipe passes through the top of the water tank and is fixedly connected to it. A valve is provided at the bottom of the inner wall of the water tank and at the bottom end of the fixed water pipe. An auxiliary water pipe is provided at the top of the fixed water pipe. The auxiliary water pipe is inserted into the interior of the fixed water pipe and is slidably connected to it. An auxiliary block is fixedly installed on one side of the U-shaped fixed seat. The first base pipe passes through the auxiliary block and is rotatably connected to it. An annular water conveying groove is provided on the auxiliary block. The auxiliary water pipe is fixedly connected to the auxiliary block and communicates with the annular water conveying groove. A pump is fixedly installed at the bottom of the auxiliary block and at the top of the auxiliary water pipe. A water inlet groove that cooperates with the annular water conveying groove is provided on the first base pipe.

[0009] As a preferred technical solution of this application, a fourth servo motor is fixedly installed inside the base, and a third worm gear is fixedly installed at the output end of the fourth servo motor. Two third worm wheels mesh with the outer side of the third worm gear, and an adjusting rod is fixedly installed on the top of each of the two third worm wheels. The third worm gear, the two third worm wheels, and the adjusting rod are all rotatably connected to the base. A sliding plate is threaded to the outer side of each of the two adjusting rods, and the two sliding plates are slidably connected to the base. A movable wheel is fixed to the bottom of each of the two sliding plates, and several movable wheels pass through the bottom of the base and are movably connected to it.

[0010] As a preferred technical solution of this application, a rubber sleeve is fitted on the outer side of each of the nozzles, and a limiting ring is fixedly installed on the outer side of the first base tube, the limiting ring being rotatably connected to the U-shaped fixing seat.

[0011] As a preferred technical solution of this application, a second servo motor is fixedly installed inside the base, and a second worm is fixedly installed at the output end of the second servo motor. Two second worm wheels mesh with the outer side of the second worm. The second worm and the two second worm wheels are rotatably connected to the base. A T-shaped threaded rod is fixedly installed on the top of each of the two second worm wheels. The two T-shaped threaded rods pass through the top of the base and are rotatably connected to it. The two T-shaped threaded rods are respectively inserted into the interior of the two support plates and are threadedly connected to them.

[0012] As a preferred technical solution of this application, a third servo motor is fixedly installed inside the base, and a connecting rod is fixedly installed at the output end of the third servo motor. The connecting rod passes through the top of the base and is rotatably connected to it, and the connecting rod is fixedly connected to the base.

[0013] As a preferred technical solution of this application, T-shaped tubes are fixedly installed on both sides of the first base tube, and annular rubber gaskets are fixedly installed on the side of each of the two T-shaped tubes away from the first base tube. T-shaped plugs and second base tubes are respectively provided on both sides of the first base tube. The two T-shaped tubes are slidably connected to the T-shaped plugs and the second base tubes respectively. An annular fixing tube is fixedly installed on the side of the T-shaped plug near the first base tube, and the annular fixing tube is slidably connected to the T-shaped tube. Flanges are fixedly installed on both outer sides of the first base tube, and flanges are fixedly installed on the outer sides of the annular fixing tube and the second base tube near the first base tube.

[0014] As a preferred technical solution of this application, a controller is embedded in the top of the base, and the controller is electrically connected to the valve, the pump, the second servo motor, the third servo motor and the first servo motor, and a number of fixing nails are fixedly installed at the bottom of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: (1) The transmission structure consisting of the first servo motor, the first worm and the first worm wheel drives the first base tube and several nozzles to rotate, so that the nozzles of the device operate as annular dynamic dust suppression, increasing the coverage area of ​​a single set of nozzles and improving the dust removal rate. The nozzles and connecting pipes are connected by threads to form an independent replaceable unit, improving maintenance efficiency. (2) Through the cooperation of the annular water supply tank and the first base pipe water inlet tank, even if the first base pipe is in a rotating state, it can still achieve continuous and uniform water supply, avoiding water supply interruption or water pressure fluctuation due to rotation. At the same time, the sliding connection structure of the auxiliary water pipe and the fixed water pipe can be adapted to the height adjustment of the U-shaped fixed seat, ensuring that the device can supply water normally under different height conditions without readjusting the pipeline. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the nozzle structure of this utility model; Figure 3 This is a top view sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a front sectional view of the present invention. Figure 6 This is a partial structural diagram of the present invention.

[0017] Explanation of reference numerals in the accompanying drawings: 1. Base; 2. Support plate; 3. U-shaped fixing seat; 4. First base tube; 5. First worm gear; 6. First worm; 7. Connecting pipe; 8. Nozzle; 9. Base; 10. Auxiliary block; 11. Water tank; 12. Fixed water pipe; 13. Auxiliary water pipe; 14. T-shaped threaded rod; 15. Second worm gear; 16. Second servo motor; 17. Second worm; 18. Third servo motor; 19. Limiting ring; 20. Connecting rod; 21. T-shaped tube; 22. T-shaped plug; 23. Annular fixing tube; 24. Second base tube; 25. Controller; 26. First servo motor. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] Example 1: Please refer to the appendix of the instruction manual. Figure 1-2 A rotary dust suppression device for construction includes a base 1, a base 9 rotatably connected to the top of the base 1, a U-shaped fixed seat 3 and two support plates 2 above the base 9, both support plates 2 being fixedly installed at the bottom of the U-shaped fixed seat 3, a first base tube 4 being provided inside the U-shaped fixed seat 3 and rotatably connected to it, a first servo motor 26 being fixedly installed inside the U-shaped fixed seat 3, a first worm gear 6 being fixedly installed at the output end of the first servo motor 26, a first worm wheel 5 meshing with the outer side of the first worm gear 6, both the first worm wheel 5 and the first worm gear 6 being rotatably connected to the U-shaped fixed seat 3, the first worm wheel 5 being fixedly installed on the outer side of the first base tube 4, several connecting pipes 7 being fixedly installed on one side of the first base tube 4, and an output groove being opened on the first base tube 4 to cooperate with the several connecting pipes 7, a nozzle 8 being threadedly connected to the outer side of each of the several connecting pipes 7, and a water tank 11 being fixedly installed on the top of the base 9.

[0025] In this embodiment of the utility model, when the device starts the dust suppression operation, the water tank 11 provides water for dust suppression. The water flows into the first base pipe 4 through a preset path, and is distributed to each connecting pipe 7 through the output groove on the first base pipe 4. Finally, it is atomized and sprayed out by the nozzle 8 to form a water curtain to adsorb and settle the dust in the construction area.

[0026] Meanwhile, in order to expand the dust suppression coverage of a single set of nozzles 8, the first servo motor 26 starts after receiving a control signal, and its output drives the first worm 6 to rotate around its own axis. Since the first worm 6 meshes with the first worm wheel 5 and the first worm wheel 5 is fixed to the outside of the first base tube 4, the rotation of the first worm 6 will be converted into the circular motion of the first worm wheel 5, which in turn drives the first base tube 4 to rotate around its own axis within the U-shaped fixed seat 3. The rotation of the first base tube 4 synchronously drives the rotation of each connecting pipe 7 and nozzle 8, thereby increasing the coverage area.

[0027] In this embodiment of the utility model, the transmission structure consisting of the first servo motor 26, the worm gear 6, and the worm wheel 5 enables the active rotation of the first base tube 4 and the nozzle 8, thereby increasing the dust suppression coverage area and reducing the dust leakage area. The nozzle 8 and the connecting pipe 7 are connected by threads, so when the nozzle 8 is clogged or worn, it can be directly unscrewed and replaced without disassembling the entire pipeline, reducing maintenance time and cost. The first base tube 4 passes through the U-shaped fixing seat 3 and is rotatably connected to it. The U-shaped fixing seat 3 is stably supported by the support plate 2, ensuring that the first base tube 4 does not shake significantly when rotating, thus ensuring the stability of the atomized water flow.

[0028] Example 2: Please refer to the appendix of the instruction manual. Figure 1-6 In a preferred embodiment of this utility model, a fixed water pipe 12 is provided inside the water tank 11. The fixed water pipe 12 passes through the top of the water tank 11 and is fixedly connected to it. A valve is provided at the bottom of the inner wall of the water tank 11 and at the bottom end of the fixed water pipe 12. An auxiliary water pipe 13 is provided at the top of the fixed water pipe 12. The auxiliary water pipe 13 is inserted into the interior of the fixed water pipe 12 and is slidably connected to it. A sealing ring is embedded at the top of the fixed water pipe 12 and at the junction of the fixed water pipe 12 and the auxiliary water pipe 13. An auxiliary block 10 is fixedly installed on one side of the fixed base 3. The first base pipe 4 passes through the auxiliary block 10 and is rotatably connected to it. An annular water conveying groove is opened on the auxiliary block 10. An auxiliary water pipe 13 is fixedly connected to the auxiliary block 10 and communicates with the annular water conveying groove. A pump is fixedly installed at the bottom of the auxiliary block 10 and at the top of the auxiliary water pipe 13. A water inlet groove that cooperates with the annular water conveying groove is opened on the first base pipe 4. A sealing ring is embedded on the auxiliary block 10 and at the junction of the auxiliary block 10 and the first base pipe 4.

[0029] A fourth servo motor is fixedly installed inside the base 1. A third worm gear is fixedly installed at the output end of the fourth servo motor. Two third worm wheels mesh with the outer side of the third worm gear. An adjusting rod is fixedly installed on the top of each of the two third worm wheels. The third worm gear, the two third worm wheels, and the adjusting rod are all rotatably connected to the base 1. A sliding plate is threaded to the outer side of each of the two adjusting rods. The two sliding plates are slidably connected to the base 1. Moving wheels are fixed to the bottom of each of the two sliding plates, and several moving wheels pass through the bottom of the base 1 and are movably connected to it.

[0030] A rubber sleeve is fitted on the outside of several nozzles 8, and a limit ring 19 is fixedly installed on the outside of the first base tube 4. The limit ring 19 is rotatably connected to the U-shaped fixed seat 3 and can rotate from 0 degrees to 270 degrees.

[0031] A second servo motor 16 is fixedly installed inside the base 9. A second worm gear 17 is fixedly installed at the output end of the second servo motor 16. Two second worm wheels 15 mesh with the outer side of the second worm gear 17. The second worm gear 17 and the two second worm wheels 15 are rotatably connected to the base 9. T-shaped threaded rods 14 are fixedly installed on the top of the two second worm wheels 15. The two T-shaped threaded rods 14 pass through the top of the base 9 and are rotatably connected to it. The two T-shaped threaded rods 14 are respectively inserted into the interior of the two support plates 2 and are threadedly connected to them.

[0032] A third servo motor 18 is fixedly installed inside the base 1. A connecting rod 20 is fixedly installed at the output end of the third servo motor 18. The connecting rod 20 passes through the top of the base 1 and is rotatably connected to it. The connecting rod 20 is fixedly connected to the base 9.

[0033] T-shaped pipes 21 are fixedly installed on both sides of the first base pipe 4. Annular rubber pads are fixedly installed on the side of each T-shaped pipe 21 away from the first base pipe 4. T-shaped plugs 22 and second base pipes 24 are respectively provided on both sides of the first base pipe 4. The two T-shaped pipes 21 are slidably connected to the T-shaped plugs 22 and the second base pipe 24 respectively. Annular fixing pipes 23 are fixedly installed on the side of the T-shaped plugs 22 close to the first base pipe 4, and the annular fixing pipes 23 are slidably connected to the T-shaped pipes 21. Flanges are fixedly installed on both outer sides of the first base pipe 4. Flanges are fixedly installed on the outer sides of the annular fixing pipes 23 and the second base pipes 24 close to the first base pipe 4.

[0034] The top of the base 1 is inlaid with a controller 25, which is electrically connected to the valve, pump, second servo motor 16, third servo motor 18 and first servo motor 26. Several fixing nails are fixedly installed at the bottom of the base 1.

[0035] In this embodiment of the utility model, the valve at the bottom of the fixed water pipe 12 inside the water tank 11 is opened, and the water in the water tank 11 flows into the fixed water pipe 12. After the pump is started, water is drawn from the fixed water pipe 12 through the auxiliary water pipe 13, and the water flow is pressurized and delivered to the annular water delivery trough of the auxiliary block 10. Since the water inlet trough on the first base pipe 4 corresponds to the annular water delivery trough, and the auxiliary block 10 is rotatably connected to the first base pipe 4, the water flow in the annular water delivery trough can continuously flow into the first base pipe 4 through the water inlet trough to supply water to the nozzle 8. At the same time, when the U-shaped fixing seat 3 drives the first base pipe 4 to adjust its height, the auxiliary block 10 rises and falls synchronously with the U-shaped fixing seat 3, and the auxiliary water pipe 13 slides along the inner wall of the fixed water pipe 12, always maintaining the connection with the fixed water pipe 12. The sealing ring at the junction of the fixed water pipe 12 and the auxiliary water pipe 13, and the sealing ring at the junction of the auxiliary block 10 and the first base pipe 4, can effectively prevent water leakage during the delivery process.

[0036] When the device needs to be moved, the fourth servo motor starts, and its output drives the third worm gear to rotate. The third worm gear simultaneously drives two meshing third worm wheels to rotate, which in turn drives the adjusting rods on top of the two third worm wheels to rotate synchronously. Since the sliding plate is threadedly connected to the adjusting rod and slidably connected to the base 1, the rotation of the adjusting rod is converted into the linear downward motion of the sliding plate. The sliding plate drives the bottom moving wheel to extend downward until the moving wheel contacts the ground and supports the base 1. At this time, the device can move flexibly within the construction site through the moving wheel. When the device moves to the target position, the fourth servo motor starts in reverse, driving the third worm gear, the third worm wheel and the adjusting rod to rotate in the opposite direction. The sliding plate drives the moving wheel to retract upward until the bottom of the base 1 contacts the ground. The moving wheel is completely retracted into the base 1, and the device is stably fixed by the base 1.

[0037] During construction, the rubber sleeve on the outside of the nozzle 8 is in direct contact with the outside environment. When there is sand and gravel splashing or equipment collision in the construction area, the rubber sleeve can buffer the impact force and prevent the nozzle 8 from being directly damaged. At the same time, the rubber sleeve has certain dustproof and anti-corrosion properties, which can reduce the corrosion of the nozzle 8 by dust and construction waste liquid. When the first base tube 4 rotates under the drive of the first servo motor 26, the limiting ring 19 fixed on the outside of the first base tube 4 rotates synchronously with it. When the limiting ring 19 rotates to the 0-degree or 270-degree position, it will contact the preset limiting protrusion on the inner wall of the U-shaped fixing seat 3 and cannot continue to rotate, thereby limiting the rotation angle of the first base tube 4 to the range of 0-270 degrees, and preventing the first base tube 4 from being twisted and damaged due to excessive rotation.

[0038] In this embodiment of the invention, when it is necessary to adjust the height of the first base pipe 4 and the nozzle 8 to adapt to different construction heights, the second servo motor 16 is started, and its output end drives the second worm gear 17 to rotate; the second worm gear 17 simultaneously drives two meshing second worm wheels 15 to rotate synchronously, thereby driving the two T-shaped threaded rods 14 to rotate around their own axes; since the support plate 2 is threadedly connected to the T-shaped threaded rods 14, and the support plate 2 is fixedly connected to the U-shaped fixed seat 3, the rotation of the T-shaped threaded rods 14 will be converted into the linear lifting and lowering motion of the support plate 2, and the support plate 2 drives the U-shaped fixed seat 3 and the first base pipe 4 and the nozzle 8 to lift and lower synchronously until the target height is adjusted.

[0039] When it is necessary to expand the overall dust suppression coverage of the device, the third servo motor 18 is started, and its output end drives the connecting rod 20 to rotate around its own axis. Since the connecting rod 20 is fixedly connected to the base 9, and the base 9 is rotatably connected to the base 1, the rotation of the connecting rod 20 will drive the base 9 and the U-shaped fixed seat 3, the first base tube 4, the nozzle 8 and other structures above it to rotate around the central axis of the base 1. Combined with the rotation of the first base tube 4 itself, a "double rotation" dust suppression mode can be formed to improve the coverage.

[0040] Because the first base pipe 4 and the second base pipe 24 have completely identical structures (the spacing of the connecting pipes 7, the specifications of the nozzles 8, the pipe diameter, and the wall thickness are all the same), and both ends of both are machined with standardized flange interfaces, the first base pipe 4 comes with a flange at the factory, and the second base pipe 24 has flanges of the same specifications pre-installed at both ends, allowing for direct coaxial connection. Align the flange at one end of the second base pipe 24 with the flange of the first base pipe 4, adjust the axes of the two base pipes to ensure that the connecting pipes 7 and the nozzles 8 are facing the same direction, and make the bolt holes on the two flanges completely overlap; use the existing fixing bolts to sequentially pass through the aligned flange bolt holes, put on the nuts, and tighten them evenly until the two flanges are tightly fitted. The sealing gasket is pressed firmly by the clamping force of the bolts to form a reliable sealing connection. At this time, the first base pipe 4 and the second base pipe 24 form a continuous "dust suppression pipeline". Water can flow smoothly from the first base pipe 4 into the second base pipe 24 and be sprayed out synchronously through the nozzles 8 of both. If it is necessary to further extend the dust suppression length, repeat the above steps, place a sealing gasket at the flange of the other end of the connected second base pipe 24, connect the new second base pipe 24, adjust the axis and tighten with bolts to realize the series expansion of multiple base pipes. All the connecting pipes 7 of the base pipes and the nozzles 8 work together to form a continuous dust suppression belt along the length direction. When dust suppression is performed solely through the first base pipe 4 without the need for an extended base pipe, both ends must be sealed. A T-type plug 22 (one end of which has a flange matching the base pipe flange specifications, and the other end is closed) is selected. A sealing gasket is placed on the flange face at one end of the first base pipe 4. The flange of the T-type plug 22 is aligned with the flange of the first base pipe 4, and bolts are tightened diagonally to compress the gasket and prevent water from flowing out of the base pipe end. The above operation is repeated to seal the other end of the first base pipe 4, ensuring that water flows only through the connecting pipe 7 and nozzle 8 of the first base pipe 4. After the series expansion of multiple base pipes is completed through the second base pipe 24, the beginning of the entire "dust suppression pipeline" (the end of the first base pipe 4 that is not connected to the second base pipe and the end of the last second base pipe 24 that is not connected to other base pipes) needs to be sealed. Place sealing gaskets at the flanges of the base pipes at the beginning and end respectively, align the flange of the T-type plug 22 with the flange of the corresponding end of the base pipe, and tighten the bolts. The end seal is achieved by the tight fit between the sealing gasket and the flange, so as to prevent water from leaking from both ends of the pipeline and ensure that all water flows are atomized and sprayed out through the nozzles 8 of each base pipe.

[0041] The controller 25 has a built-in PLC control system. Operators can send control commands to various components through the touch panel or optional remote control module of the controller 25. At the same time, the device has several heat dissipation holes that cooperate with the motor, and dustproof nets are fixedly installed on the device and inside the heat dissipation holes.

[0042] Example 3: Please refer to the appendix of the instruction manual. Figure 2 In a preferred embodiment of this utility model, a plurality of nozzles 8 are provided with a first through-hole plate and a second through-hole plate inside. The first through-hole plate is rotatably connected to the nozzle 8, and the second through-hole plate is fixedly connected to the nozzle 8. The thickness of the first through-hole plate is greater than the thickness of the second through-hole plate. A cross-shaped rotating rod is fixedly installed on the side of the first through-hole plate near the second through-hole plate. The cross-shaped rotating rod is inserted into the interior of the second through-hole plate and rotatably connected to it. An electric telescopic rod is fixedly installed inside the second through-hole plate. A rack is fixedly installed at the output end of the electric telescopic rod. The rack is slidably connected to the second through-hole plate. A gear meshes on the outer side of the rack and is rotatably connected to the second through-hole plate. The gear is fixedly connected to the cross-shaped rotating rod. The first and second through-hole plates have the same number and the same diameter of through holes. The controller 25 is electrically connected to the electric telescopic rod.

[0043] In this embodiment of the invention, when high atomization precision is required (e.g., to deal with fine dust particles, a fine water curtain needs to be formed), the controller 25 sends an extension command to the electric telescopic rod, which pushes the rack to slide along the second through-hole plate; the rack drives the meshing gear to rotate, and the gear synchronously drives the cross-shaped rotating rod and the first through-hole plate to rotate until the through holes of the first through-hole plate and the second through-hole plate are completely aligned (100% overlap); at this time, the water flow experiences minimal resistance as it passes through the two sets of completely aligned through holes, the atomized particle diameter is small, forming a fine water curtain, and the adsorption effect on fine dust particles is optimal. When low atomization precision is required (such as when dealing with coarse dust particles, where a large flow water curtain needs to be formed), the controller 25 sends a shortening command to the electric telescopic rod. The electric telescopic rod pulls the rack to slide in the opposite direction, driving the gear, cross-shaped rotating rod, and first through-hole plate to rotate in the opposite direction, so that the through-hole portions of the first through-hole plate and the second through-hole plate overlap (the overlap can be adjusted to 30%-70%). At this time, the water flow passes through the partially overlapping through-holes, and the resistance it encounters increases, the diameter of the atomized particles becomes larger, the water curtain flow rate increases, and the impact settling effect on coarse dust particles is more significant. When it is necessary to shut off nozzle 8, controller 25 controls the electric telescopic rod to continue to shorten, causing the first through-hole plate to rotate until it is completely misaligned with the through-hole of the second through-hole plate (0% overlap), the water flow is blocked, and nozzle 8 stops spraying water.

[0044] In this embodiment of the invention, the atomization precision of the nozzle 8 is infinitely adjustable through the transmission structure of the electric telescopic rod, rack, and gear. This allows for flexible switching based on the size of dust particles at the construction site, resulting in improved dust removal rate compared to nozzles with fixed atomization precision. Adjusting the atomization precision for different dust types avoids water waste caused by using fine mist for large dust particles or ineffective dust suppression by using coarse mist for fine dust particles, thus improving dust suppression efficiency per unit volume of water. The thickness of the first through-hole plate is greater than that of the second through-hole plate, enhancing its resistance to water flow impact. The rotatable connection between the cross-shaped rotating rod and the second through-hole plate ensures the stability of the first through-hole plate during rotation, preventing displacement of the through-hole plate due to water flow impact and extending the service life of the nozzle 8.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A rotary dust suppression device for construction, comprising a base (1), characterized in that, The base (1) is rotatably connected to a base (9) at its top. A U-shaped fixed seat (3) and two support plates (2) are provided above the base (9). Both support plates (2) are fixedly installed at the bottom of the U-shaped fixed seat (3). A first base tube (4) is provided inside the U-shaped fixed seat (3), and the first base tube (4) passes through the U-shaped fixed seat (3) and is rotatably connected to it. A first servo motor (26) is fixedly installed inside the U-shaped fixed seat (3). A first worm gear is fixedly installed at the output end of the first servo motor (26). 6) The first worm (6) is meshed with a first worm wheel (5) on the outside. The first worm wheel (5) and the first worm (6) are rotatably connected to the U-shaped fixed seat (3). The first worm wheel (5) is fixedly installed on the outside of the first base tube (4). Several connecting pipes (7) are fixedly installed on one side of the first base tube (4). The first base tube (4) is provided with an output groove that cooperates with several connecting pipes (7). The outside of several connecting pipes (7) is threaded with a nozzle (8). A water tank (11) is fixedly installed on the top of the base (9).

2. The rotary dust suppression device for construction work according to claim 1, characterized in that, The water tank (11) is equipped with a fixed water pipe (12) inside. The fixed water pipe (12) passes through the top of the water tank (11) and is fixedly connected to it. A valve is provided at the bottom of the inner wall of the water tank (11) and at the bottom end of the fixed water pipe (12). An auxiliary water pipe (13) is provided at the top of the fixed water pipe (12). The auxiliary water pipe (13) is inserted into the interior of the fixed water pipe (12) and is slidably connected to it. An auxiliary block (10) is fixedly installed on one side of the U-shaped fixed seat (3). The first base pipe (4) passes through the auxiliary block (10) and is rotatably connected to it. An annular water conveying groove is provided on the auxiliary block (10). The auxiliary water pipe (13) is fixedly connected to the auxiliary block (10) and communicates with the annular water conveying groove. A pump is fixedly installed at the bottom of the auxiliary block (10) and at the top of the auxiliary water pipe (13). An inlet groove that cooperates with the annular water conveying groove is provided on the first base pipe (4).

3. The rotary dust suppression device for construction work according to claim 1, characterized in that, A fourth servo motor is fixedly installed inside the base (1). A third worm gear is fixedly installed at the output end of the fourth servo motor. Two third worm wheels mesh with the outer side of the third worm gear. An adjusting rod is fixedly installed on the top of each of the two third worm wheels. The third worm gear, the two third worm wheels, and the adjusting rod are all rotatably connected to the base (1). A sliding plate is threadedly connected to the outer side of each of the two adjusting rods. The two sliding plates are slidably connected to the base (1). Moving wheels are fixed to the bottom of each of the two sliding plates, and several moving wheels pass through the bottom of the base (1) and are movably connected to it.

4. A rotary dust suppression device for construction work according to claim 1, characterized in that, A rubber sleeve is fitted on the outside of several of the nozzles (8), and a limiting ring (19) is fixedly installed on the outside of the first base tube (4). The limiting ring (19) is rotatably connected to the U-shaped fixing seat (3).

5. A rotary dust suppression device for construction work according to claim 1, characterized in that, The base (9) is fixedly installed with a second servo motor (16). The output end of the second servo motor (16) is fixedly installed with a second worm (17). Two second worm wheels (15) mesh with the outer side of the second worm (17). The second worm (17) and the two second worm wheels (15) are rotatably connected to the base (9). T-shaped threaded rods (14) are fixedly installed on the top of the two second worm wheels (15). The two T-shaped threaded rods (14) pass through the top of the base (9) and are rotatably connected to it. The two T-shaped threaded rods (14) are respectively inserted into the interior of the two support plates (2) and are threadedly connected to them.

6. A rotary dust suppression device for construction work according to claim 1, characterized in that, A third servo motor (18) is fixedly installed inside the base (1). A connecting rod (20) is fixedly installed at the output end of the third servo motor (18). The connecting rod (20) passes through the top of the base (1) and is rotatably connected to it. The connecting rod (20) is fixedly connected to the base (9).

7. A rotary dust suppression device for construction work according to claim 1, characterized in that, T-shaped tubes (21) are fixedly installed on both sides of the first base pipe (4). Annular rubber pads are fixedly installed on the side of the two T-shaped tubes (21) away from the first base pipe (4). T-shaped plugs (22) and second base pipes (24) are respectively provided on both sides of the first base pipe (4). The two T-shaped tubes (21) are slidably connected to the T-shaped plugs (22) and the second base pipes (24). Annular fixing tubes (23) are fixedly installed on the side of the T-shaped plugs (22) close to the first base pipe (4), and the annular fixing tubes (23) are slidably connected to the T-shaped tubes (21). Flanges are fixedly installed on both sides of the first base pipe (4). Flanges are fixedly installed on the side of the annular fixing tubes (23) and the second base pipes (24) close to the first base pipe (4).

8. A rotary dust suppression device for construction work according to claim 1, characterized in that, The top of the base (1) is inlaid with a controller (25), which is electrically connected to the valve, the pump, the second servo motor (16), the third servo motor (18) and the first servo motor (26). Several fixing nails are fixedly installed at the bottom of the base (1).

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