Flying dust and noise linkage treatment device and method for construction site

Abstract

The invention relates to a flying dust and noise linkage treatment device and method for a construction site, and relates to the field of environmental pollution abatement, the flying dust and noise linkage treatment device comprises a plurality of slidable sound insulation barriers arranged on a fence support, walking mechanisms are arranged at the bottoms of the sound insulation barriers, dust falling nozzles are arranged on the front faces of the sound insulation barriers, noise reduction nozzles are arranged on the side faces of the sound insulation barriers, and the noise reduction nozzles are of special structures. A water diversion rod, a light-transmitting area, a water curtain spray head and the like are further arranged, a containing hole, a lifting plate, a lifting mechanism and the like are arranged in the fence support, and a corresponding linkage treatment method is provided. The effects that the position of the sound insulation barrier can be flexibly adjusted according to the flying dust and noise degree of the construction site, effective dust falling and noise reduction are achieved through different nozzles, and linkage treatment is conducted on the flying dust and noise of the construction site are achieved.

Description

Technical Field

[0001] This application relates to the field of environmental protection equipment technology, and in particular to a device and method for the coordinated control of dust and noise at construction sites. Background Technology

[0002] In the field of environmental protection equipment technology, dust detection and treatment have always been important research directions for locations prone to dust generation, such as construction sites, mines, and material storage areas. With increasing environmental awareness and increasingly stringent regulations, air pollution control in these locations has become increasingly crucial. Effective dust control not only helps improve surrounding air quality and protect people's health but also reduces pollution to the surrounding environment and enhances the overall ecological environment quality. Therefore, professional dust detection and treatment equipment has been widely used in these locations and continues to be improved and perfected with technological advancements.

[0003] A Chinese patent with authorization announcement number CN223159049U discloses an online dust monitoring and linkage automatic control system for fog cannon spraying. The system includes a fog cannon vehicle and an air quality monitor. A support frame is located on one side of the fog cannon vehicle, and the support frame is detachably connected to the fog cannon vehicle. A support rod is installed on the top of the support frame, and a support rod is located at the top of the support rod. The air quality monitor is mounted on the top of the support rod, and a junction box is located at the bottom of one end of the support rod. The junction box is connected to a wire, and an AC contactor is connected to the wire. A control box is located on the side of the fog cannon vehicle, and the bottom of the AC contactor is connected to the control box via a wire. By installing an air quality monitor on one side of the fog cannon vehicle, the air quality monitor is able to monitor the air quality. Simultaneously, the air quality monitor is connected to the fog cannon vehicle via the AC contactor. When the dust concentration in the air is too high, the air quality monitor will send a signal back to the AC contactor.

[0004] The aforementioned technologies have the following drawbacks: they employ spray dust suppression, but in actual construction environments, in addition to dust, construction noise is usually also generated as construction work progresses. Therefore, in real-world construction scenarios, dust suppression and noise reduction typically need to be addressed simultaneously. A common noise reduction method is to install sound barriers, but these barriers often obstruct the view. How to simultaneously achieve dust and noise reduction with minimal impact on visibility remains to be improved. Summary of the Invention

[0005] In order to achieve dust and noise reduction simultaneously with minimal impact on visibility, this application provides a device and method for the coordinated control of dust and noise at construction sites.

[0006] The technical solution provided in this application for a dust and noise control device and method for construction sites adopts the following: A dust and noise control device for construction sites includes a fence support, on which several sound barriers are slidably mounted. Each sound barrier has a walking mechanism at its bottom that can move along the fence support. There is a gap between adjacent sound barriers. Dust-reducing nozzles are mounted on the front of each sound barrier, and noise-reducing nozzles are mounted on the sides of each sound barrier. The spray direction of the noise-reducing nozzles is directed towards the gap between adjacent sound barriers.

[0007] By adopting the above technical solution, enclosure supports are set up around or to the sides of the construction site. Dust sensors and noise sensors can be installed on or around the enclosure supports as needed.

[0008] When the dust and noise levels at the construction site do not require additional control, the positions of several sound barriers can be adjusted by the walking mechanism to ensure that the sound barriers are evenly distributed. In this state, the distance between the sound barriers is relatively large, allowing for a greater, more uniform, and more direct observation of the construction situation on the other side of the enclosure support.

[0009] When there is significant localized dust, the positions of several sound barriers can be adjusted using a mobile mechanism to concentrate the barriers in the areas with the most dust. Several dust suppression nozzles can then be activated to reduce dust in the construction area beside the barrier supports. The nozzles spray in a fan shape, resulting in some overlap in the dust suppression areas between different nozzles. Therefore, although there are gaps between adjacent sound barriers, full coverage of the dust suppression effect can still be achieved. While water mist is present in the gaps between adjacent sound barriers, it still meets certain observation needs and can help to roughly assess the construction situation on the other side.

[0010] When there is significant localized dust pollution accompanied by noise, additional noise-reducing nozzles can be activated. These nozzles are positioned on the top of the side of the sound barrier, spraying downwards and slightly at an angle to the adjacent barrier. The nozzles spray a mist-like water curtain, with the water curtains between adjacent nozzles positioned parallel to each other. When sound waves propagate through the gaps between adjacent sound barriers, the two layers of water curtains absorb the sound waves to a certain extent—a water mist damping effect. This method reduces noise while maintaining the gaps between the sound barriers. Although the water mist from the noise-reducing nozzles is present at the gaps between adjacent barriers, it still allows for some observation, helping to roughly assess the construction progress on the other side.

[0011] Preferably, the noise-reducing nozzle includes a nested outer sleeve and an inner sleeve. The end of the outer sleeve is provided with a limiting ring to prevent the inner sleeve from slipping out. The end of the inner sleeve is provided with a trigger rod extending out of the limiting ring. A reset elastic element for pushing the trigger rod out of the limiting ring is provided between the inner wall of the outer sleeve and the inner sleeve. The side wall of the outer sleeve is provided with dust-reducing spray holes and noise-reducing spray holes. The side wall of the inner sleeve is provided with dust-reducing clearance holes and noise-reducing clearance holes. The dust-reducing clearance holes are elongated, and their length direction is parallel to the sliding direction of the inner sleeve relative to the outer sleeve. The dust-reducing clearance holes are connected to the dust-reducing spray holes, and the outer sleeve covers the noise-reducing clearance holes.

[0012] By adopting the above technical solution, under normal conditions, the reset elastic element causes the end of the trigger rod to extend out of the limiting ring. In this state, the outer sleeve covers the noise reduction clearance hole, and the noise reduction nozzle will only spray water mist towards the construction area through the dust reduction clearance hole and dust reduction nozzle, achieving only the dust reduction function. Combined with the dust reduction nozzle, the dust reduction effect can be further improved. When noise reduction is required, the distance between adjacent sound barriers needs to be adjusted. When the adjacent sound barriers are close together, and the trigger rod abuts against the side wall of the adjacent sound barrier, the trigger rod will be pushed towards the inner sleeve by the side wall of the adjacent sound barrier. During this process, the noise reduction clearance hole gradually overlaps with the noise reduction nozzle. That is, in this state, in addition to spraying water mist towards the construction area for dust reduction, the noise reduction nozzle can also spray a mist-like water curtain towards the side wall of the adjacent sound barrier through the noise reduction clearance hole and noise reduction nozzle. In other words, when noise reduction is required, the proximity of the sound barrier can reduce the propagation gap and automatically activate the "water mist damping" state, absorbing noise energy while still maintaining an observation gap. When only dust reduction is required, the noise reduction mode can be automatically turned off by moving away from adjacent sound barriers, thus automatically changing to a dust reduction-only mode.

[0013] Preferably, an adjusting rod is slidably provided at the end of the outer sleeve, and a plurality of adjusting grooves are provided at the end of the trigger rod. The plurality of adjusting grooves are evenly distributed along the circumference of the trigger rod, and the length direction of the adjusting grooves is arranged along the radial direction of the trigger rod.

[0014] By adopting the above technical solution, the inner sleeve and trigger rod as a whole can slide along the axial direction of the outer sleeve and rotate around the axis of the outer sleeve. Different angles can realize the degree of connection between the dust reduction clearance hole, the noise reduction clearance hole and the dust reduction spray hole and the noise reduction spray hole in the circumferential direction of the outer sleeve. Therefore, by using the method of extending the adjusting rod into the adjusting groove, the current angle can be fixed, and the adjusting rod can slide relatively in the adjusting groove. That is, the trigger rod can achieve stable sliding at a specific angle.

[0015] Preferably, the sidewall of the sound barrier is provided with a plurality of water-guiding rods, which are arranged in parallel and inclined downwards, and the plurality of water-guiding rods on the adjacent sides of the sound barrier are staggered and closely fitted together.

[0016] By adopting the above technical solution, it is easier to form a water curtain by staggering and closely fitting several water-guiding rods. As the water flows continuously downward above the several water-guiding rods, the water-guiding rods can easily collect the water flow and easily generate a water curtain along the intersection of two adjacent water-guiding rods. The generation of the water curtain can more effectively disperse and absorb sound waves, especially high-frequency noise, thereby reducing echoes and reverberation in the space.

[0017] Preferably, the sound barrier has a light-transmitting area in the middle, the light-transmitting area has a light-transmitting plate, and the sound barrier has a water curtain nozzle above the light-transmitting plate.

[0018] By adopting the above technical solution, the combination of the light-transmitting area and the light-transmitting plate further enhances the observation area. Furthermore, the water curtain nozzles allow for the formation of a dynamic and stable water film or droplet layer on the surface of the light-transmitting plate. This water further disperses and absorbs sound waves, achieving noise reduction. In addition, the water curtain helps keep the light-transmitting plate clean, further improving the ease of observation of the other side of the enclosure support when noise reduction is not required. Even when noise reduction is needed, the water curtain on the surface of the light-transmitting plate will not completely obstruct the observation, creating a slightly blurred image, which can still help in inferring the construction situation on the other side of the enclosure support.

[0019] Preferably, the enclosure support has an accommodating hole inside, the bottom of the sound barrier is located inside the accommodating hole, a lifting plate is provided inside the accommodating hole, and a lifting mechanism is provided inside the accommodating hole below the lifting plate, and the sound barrier is supported above the lifting plate.

[0020] By adopting the above technical solution, the bottom of the sound barrier is placed in the receiving hole, and the height of the lifting plate is adjusted by the lifting mechanism, thereby realizing the height adjustment of the sound barrier. The height of several sound barriers can be adjusted as needed according to the height of the dust or noise source.

[0021] Preferably, the inner wall of the receiving hole is provided with a toothed plate, the walking mechanism includes a driving walking gear and a driven walking wheel, the driving walking gear meshes with the toothed plate, the driving walking gear can slide up and down along the tooth groove of the toothed plate, and the lifting plate is supported below the driven walking wheel.

[0022] By adopting the above technical solution, the active walking gear is driven by a motor to rotate, and the lateral movement is achieved by the engagement between the active walking gear and the side toothed plate. The sound barrier is raised and lowered by adjusting the support position of the lifting plate. In this way, the sound barrier can move and be raised and lowered independently, and the adjustment is more flexible.

[0023] Preferably, a filter cloth is provided above the lifting plate, and the lifting plate itself is provided with water-permeable holes.

[0024] By adopting the above technical solution, the downward water flow from the noise reduction nozzle and the water curtain nozzle will eventually converge in the receiving hole. After being filtered by the filter cloth, the water flow will fall back to the bottom of the lifting plate through the water permeable hole. The water that finally converges below the lifting plate can be reused, reducing the water consumption of the noise reduction part.

[0025] Preferably, the driving end of the lifting mechanism is provided with a lifting wheel, the lifting wheel is supported below the lifting plate, the lifting plate is strip-shaped, and the enclosure support is provided with an unwinding mechanism and a winding mechanism for the lifting plate.

[0026] By adopting the above technical solution, the strip-shaped lifting plate can be easily replaced through the cooperation of the unwinding and rewinding mechanisms. The lifting plate and the filter cloth above it can be pre-rolled up and then output synchronously using the unwinding mechanism. When the filtration capacity of the filter cloth is low, it can be recycled using the rewinding mechanism, and new lifting plates and filter cloth can be output simultaneously using the unwinding mechanism. During actual use, the lifting plate will eventually develop some creases on its surface due to the downward pressure from the driven wheels. As each lifting mechanism makes independent height adjustments at different locations, these creases will gradually accumulate. Therefore, if the lifting plate is not replaced individually, it can easily cause local breakage of the lifting plate or affect the accuracy of the lifting mechanism's position adjustment of the sound barrier.

[0027] Furthermore, the unwinding and rewinding mechanisms can be combined with unidirectional rotating mechanisms such as ratchet and pawl to control the unidirectional conveying of the lifting plate. For example, the unwinding mechanism can be set to passive rotation and unidirectional rotation (unwinding), and a damping mechanism can be added so that the passive rotation of the unwinding mechanism requires overcoming a certain resistance; the rewinding mechanism can be set to passive rotation and unidirectional rotation (rewinding), and a torsion spring mechanism can be added to achieve the tendency for the rewinding mechanism to rotate automatically, but this tendency is not enough to directly drive the unwinding mechanism to rotate. Thus, when the lifting mechanism is raised (enough to overcome the resistance of the damping mechanism), the length of the lifting plate may be insufficient. At this time, the rewinding mechanism will not be reused due to the limitation of unidirectional rotation, while the unwinding mechanism will automatically achieve passive unwinding and automatic material replenishment. When the lifting mechanism is lowered, the slack lifting plate will be automatically wound back to the rewinding mechanism under the action of the torsion spring. In summary, with the raising and lowering of the lifting mechanism, the lifting plate can be automatically replaced, continuously feeding new and collecting old, thus maintaining the lifting plate and filter cloth in a better service condition, resulting in a higher overall degree of automation.

[0028] Based on a method for controlling dust and noise in conjunction with a construction site, enclosure supports are installed around or to the sides of the construction site, and dust and noise sensors are arranged as needed on the enclosure supports themselves and / or around them. When the dust and noise levels at the construction site do not require additional control, the positions of several sound barriers can be adjusted by the walking mechanism to ensure that the sound barriers are evenly distributed. When there is a lot of dust in a certain area, the position of several sound barriers can be adjusted by the walking mechanism to concentrate the sound barriers in the area with more dust, and several dust suppression nozzles can be turned on to achieve dust suppression in the construction area on the side of the fence support. When there is a lot of dust in a local area, accompanied by noise, the noise reduction nozzles are turned on. The spray pattern of the noise reduction nozzles is a mist-like water curtain, and the mist-like water curtains between two adjacent noise reduction nozzles are set in parallel.

[0029] By adopting the above technical solutions, when no additional dust and noise control is required, the sound barriers can be evenly distributed, allowing for greater, more uniform, and more intuitive observation of the construction situation. When there is a lot of dust in some areas, the sound barriers can be centrally arranged and the dust suppression nozzles can be turned on to reduce dust in the construction area, and the dust suppression area can cover the entire area while meeting certain observation needs. When there is a lot of dust in some areas and it is accompanied by noise, the noise reduction nozzles can be turned on, and the water mist damping effect of the mist-like water curtain can be used to absorb sound waves, reducing noise while maintaining the gaps between the sound barriers, and still meeting certain observation needs.

[0030] In summary, this application includes at least one of the following beneficial technical effects: 1. The position of the sound barrier can be adjusted by the walking mechanism according to the dust and noise level at the construction site. When no additional treatment is required, the sound barrier can be evenly distributed to facilitate the observation of the construction situation. When there is a lot of dust in a local area, the sound barrier can be concentrated and the dust suppression nozzles can be turned on to reduce dust. When there is a lot of dust in a local area and it is accompanied by noise, the noise reduction nozzles can be turned on to reduce the noise by using the water mist damping effect, while maintaining gaps to meet the observation needs. 2. The noise reduction nozzle only performs dust reduction under normal conditions. It can improve the dust reduction effect when used with the dust reduction nozzle. When noise reduction is needed, the adjacent sound barrier is brought close to push the trigger rod to make the noise reduction clearance hole coincide with the noise reduction nozzle, and the noise reduction function is automatically activated. It can also automatically switch between dust reduction and noise reduction modes. 3. The staggered and closely spaced water-guiding rods facilitate the formation of a water curtain, which can effectively disperse and absorb sound waves, reducing echoes and reverberation in the space. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of this application; Figure 2This is a structural schematic diagram illustrating the connection relationship between the walking mechanism and the enclosure support in the embodiments of this application; Figure 3 This is a structural schematic diagram illustrating the connection relationship between the sound barrier and the enclosure support in the embodiments of this application; Figure 4 This is a schematic diagram illustrating the connection between the active walking gear and the toothed plate in an embodiment of this application; Figure 5 This is a schematic diagram illustrating the connection between the filter cloth and the lifting plate in an embodiment of this application; Figure 6 This is a structural schematic diagram used in the embodiments of this application to illustrate the connection relationship between adjacent water-guiding rods; Figure 7 This is a structural schematic diagram illustrating the connection relationship between the inner sleeve and the outer sleeve in an embodiment of this application; Figure 8 This is a structural schematic diagram illustrating the connection relationship between the adjusting rod and the trigger rod in an embodiment of this application; Figure 9 This is a structural schematic diagram illustrating the cooperative relationship between the unwinding mechanism and the winding mechanism in the embodiments of this application; Figure 10 This is a schematic diagram illustrating the connection between the damping mechanism and the unwinding mechanism in an embodiment of this application.

[0032] In the picture: 1. Enclosure support; 10. Accommodation hole; 11. Dust suppression nozzle; 12. Toothed plate; 13. Lifting plate; 130. Water permeable hole; 14. Filter cloth; 15. Lifting mechanism; 16. Lifting wheels; 2. Noise barrier; 21. Light-transmitting area; 22. Light-transmitting panel; 23. Water curtain nozzle; 24. Water guide rod; 3. Walking mechanism; 31. Driving gear; 32. Driven wheel; 4. Noise-reducing nozzle; 41. Outer sleeve; 42. Inner sleeve; 43. Limiting ring; 44. Trigger rod; 45. Reset elastic element; 46. Dust-reducing spray hole; 47. Noise-reducing spray hole; 48. Dust-reducing clearance hole; 49. Noise-reducing clearance hole; 5. Adjusting rod; 51. Adjusting groove; 6. Unwinding mechanism; 61. Damping pad; 62. Tightening nut; 7. Winding mechanism; 71. Torsion spring. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of the present invention, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of the present invention without creative effort are also within the protection scope of the present invention.

[0034] This application primarily utilizes enclosure supports in conjunction with sound barriers and nozzles to achieve dust and noise reduction, achieving simultaneous dust and noise reduction with minimal visual impact. The basic principle of water mist damping noise reduction lies in the fact that when sound waves propagate in the air, they are reflected, scattered, and absorbed when they encounter suspended water mist particles. The tiny water droplets in the water mist increase the complexity of the sound wave propagation path, causing some of the sound energy to be converted into heat energy, thereby reducing noise intensity. High-frequency noise, in particular, is more easily absorbed by water mist due to its shorter wavelength. Furthermore, the water mist forms an "acoustic soft boundary" in the gaps of the sound barrier, which can further block and attenuate sound wave propagation.

[0035] The following is a further detailed description of this application. Example

[0036] Reference Figure 1 and Figure 2 The dust and noise control device for construction sites provided in this application includes a fence support 1, several sound barriers 2, a walking mechanism 3, dust suppression nozzles 11, and noise reduction nozzles 4. The fence support 1 supports and guides the movement of the sound barriers 2. Several sound barriers 2 are slidably mounted on the fence support 1, with gaps between adjacent sound barriers 2. The position of the sound barriers 2 can be adjusted by the walking mechanism 3. The dust suppression nozzles 11 are located on the front of the sound barriers 2 and are used to suppress dust in the construction area. The noise reduction nozzles 4 are located on the side of the sound barriers 2, and their spraying direction is towards the gap between adjacent sound barriers 2. This can reduce noise while maintaining the gap, and the gap can meet a certain degree of observation requirements.

[0037] Reference Figure 3 and Figure 4 Specifically, the enclosure support 1 is the basic support structure of the entire device, usually made of sturdy metal or high-strength plastic, and its shape can be long and narrow to adapt to the layout of the construction site. The enclosure support 1 has an internal receiving hole 10 to accommodate the bottom of the sound barrier 2. The inner wall of the receiving hole 10 is provided with a toothed plate 12, which can be made of metal and is fixed to the inner wall of the receiving hole 10 by welding or bolting, providing a base for the meshing of the drive gear 31 of the walking mechanism 3.

[0038] Reference Figure 4 and Figure 5The sound barrier 2 is one of the core components of the device. Its main body can be made of materials with good sound insulation properties, such as sound-absorbing cotton and sound insulation boards, and the surface can be treated with anti-corrosion to extend its service life. The bottom of the sound barrier 2 is equipped with a walking mechanism 3 that can move along the length of the enclosure support 1. The walking mechanism 3 includes a driving gear 31 and driven wheels 32. The driving gear 31 is usually made of metal and rotates through a rotary drive device such as a motor, which can be a stepper motor with precise control performance. The driving gear 31 meshes with the toothed plate 12 on the inner wall of the receiving hole 10. Through the guiding action of the toothed plate 12, the sound barrier 2 can move laterally, and the engagement of the teeth and grooves ensures that the sound barrier 2 remains vertical and will not tip over. The driven wheels 32 provide support and assist movement, and are usually made of rubber to reduce noise and vibration during movement. There is a gap between adjacent sound barriers 2, the size of which can be adjusted according to actual needs to meet different observation and control requirements.

[0039] A lifting plate 13 is installed inside the receiving hole 10. The lifting plate 13 is strip-shaped and usually made of metal, such as stainless steel, which has a certain strength but also a certain degree of flexibility. A filter cloth 14 is installed above the lifting plate 13. The filter cloth 14 can be made of non-woven fabric or filter screen, which has good filtration performance. The lifting plate 13 itself is provided with water permeable holes 130. The size and distribution of the water permeable holes 130 can be designed according to actual needs to ensure smooth water flow. A lifting mechanism 15 is installed inside the receiving hole 10 below the lifting plate 13. The driving end of the lifting mechanism 15 is provided with lifting wheels 16, which are supported below the lifting plate 13. The lifting mechanism 15 can be a hydraulic lifting mechanism 15 or an electric lifting mechanism 15. By controlling the driving end of the lifting mechanism 15, the height of the lifting plate 13 can be adjusted, thereby adjusting the height of the sound barrier 2. The height of several sound barriers 2 can be adjusted as needed according to the height of dust or noise sources.

[0040] Reference Figure 6 Dust suppression nozzles 11 are installed on the front of the sound barrier 2, with a spray range in a fan or trumpet shape. High-pressure nozzles can be used to ensure that the water mist can cover a large area. The dust suppression nozzles 11 can be connected to a water source via pipes made of plastic or metal, which have good corrosion resistance and sealing properties. When there is a lot of dust in a localized area of ​​the construction site, several dust suppression nozzles 11 can be turned on. Due to the overlap of their spray ranges, the dust suppression effect can be achieved across the entire area. Noise reduction nozzles 4 are installed on the sides of the sound barrier 2, with their spray direction facing the gap between adjacent sound barriers 2.

[0041] A light-transmitting area 21 is provided in the middle of the sound barrier 2, and a light-transmitting plate 22 is provided in the light-transmitting area 21. The light-transmitting plate 22 can be made of acrylic or transparent plastic and has good light transmittance. A water curtain nozzle 23 is provided above the light-transmitting plate 22 of the sound barrier 2. The water curtain nozzle 23 can be a low-pressure nozzle and is connected to a water source through a pipe. The water curtain nozzle 23 can form a dynamic and stable water film or water droplet layer on the surface of the light-transmitting plate 22. This water can further disperse and absorb sound waves, thereby achieving noise reduction. At the same time, due to the rinsing of the water curtain, the light-transmitting plate 22 is also easier to keep clean. When noise reduction is not required, it can further improve the convenience of observation on the other side of the enclosure support 1. When noise reduction is required, the water curtain on the surface of the light-transmitting plate 22 will not completely block the observation, and it can still help to infer the construction situation on the other side of the enclosure support 1.

[0042] Reference Figure 7 The noise-reducing nozzle 4 includes a nested outer sleeve 41 and an inner sleeve 42. The outer sleeve 41 and inner sleeve 42 can be made of plastic or metal, possessing a certain strength and corrosion resistance. A limiting ring 43 is provided at the end of the outer sleeve 41 to prevent the inner sleeve 42 from slipping. The limiting ring 43 can be integrally formed or welded to the outer sleeve 41 to ensure that the inner sleeve 42 slides within a certain range. A trigger rod 44, typically made of metal, is provided at the end of the inner sleeve 42, extending beyond the limiting ring 43. A reset elastic element 45 is provided between the inner wall of the outer sleeve 41 and the inner sleeve 42 to push the trigger rod 44 out of the limiting ring 43. The reset elastic element 45 can be a spring, and its elastic coefficient is selected according to actual needs. Dust-reducing spray holes 46 and noise-reducing spray holes 47 are provided on the side wall of the outer sleeve 41, and dust-reducing clearance holes 48 and noise-reducing clearance holes 49 are provided on the side wall of the inner sleeve 42. The dust suppression clearance hole 48 is elongated, with its length direction parallel to the sliding direction of the inner sleeve 42 relative to the outer sleeve 41. The dust suppression clearance hole 48 is connected to the dust suppression spray hole 46. Under normal conditions, the reset elastic element 45 causes the end of the trigger rod 44 to extend out of the limiting ring 43. At this time, the outer sleeve 41 covers the noise reduction clearance hole 49, and the noise reduction nozzle 4 sprays water mist towards the construction area only through the dust suppression clearance hole 48 and the dust suppression spray hole 46 to achieve the dust suppression function. When noise reduction is required, the adjacent sound barriers 2 move closer to each other. After the trigger rod 44 abuts against the side wall of the adjacent sound barrier 2, it will be pushed towards the inside of the inner sleeve 42. At this time, the noise reduction clearance hole 49 gradually coincides with the noise reduction spray hole 47. In addition to dust suppression, the noise reduction nozzle 4 can also spray a mist-like water curtain towards the side wall of the adjacent sound barrier 2, using the water mist damping effect to reduce noise.

[0043] Reference Figure 8An adjusting rod 5 is slidably provided at the end of the outer sleeve 41, and a plurality of adjusting grooves 51 are provided at the end of the trigger rod 44. The plurality of adjusting grooves 51 are evenly distributed along the circumference of the trigger rod 44, and the length direction of the adjusting grooves 51 is arranged along the radial direction of the trigger rod 44. The inner sleeve 42 and the trigger rod 44 as a whole can slide along the axial direction of the outer sleeve 41, and can also rotate around the axis of the outer sleeve 41. Different angles can adjust the degree of communication between the dust-reducing clearance hole 48, the noise-reducing clearance hole 49 and the dust-reducing spray hole 46, and the noise-reducing spray hole 47 in the circumferential direction of the outer sleeve 41. Therefore, by inserting the adjusting rod 5 into the adjusting groove 51, the current angle can be fixed, and at the same time, the adjusting rod 5 can slide relative to the adjusting groove 51. That is, the trigger rod 44 can achieve stable sliding at a specific angle.

[0044] Reference Figure 6 In addition, the side walls of the sound barrier 2 are equipped with several water-guiding rods 24. The water-guiding rods 24 can be made of metal or plastic with a smooth surface to facilitate water flow. The water-guiding rods 24 are arranged parallel to each other and inclined downwards. The water-guiding rods 24 on the sides of adjacent sound barriers 2 are staggered and closely fitted together. This arrangement makes it easier to form a water curtain. The water flows down the water-guiding rods 24 to form a water curtain, which can more effectively disperse and absorb sound waves, especially high-frequency noise, thereby reducing echoes and reverberation in the space.

[0045] Reference Figure 2 and Figure 9 The enclosure support 1 is also equipped with an unwinding mechanism 6 and a rewinding mechanism 7 for the lifting plate 13. The unwinding mechanism 6 and the rewinding mechanism 7 can be a combination of a roller and a motor. The unwinding and rewinding of the lifting plate 13 can be achieved by driving the motor.

[0046] To achieve automatic replacement of the lifting plate 13, in other embodiments, the unwinding mechanism 6 and the winding mechanism 7 can be coupled with a unidirectional rotating mechanism such as a ratchet or pawl. For example, the unwinding mechanism 6 can be configured to rotate passively and unidirectionally (unwinding), and a damping mechanism can be installed so that the passive rotation of the unwinding mechanism 6 requires overcoming a certain resistance; the winding mechanism 7 can be configured to rotate passively and unidirectionally (winding), and a torsion spring 71 mechanism can be installed to achieve the tendency for the winding mechanism 7 to rotate automatically, but this tendency is insufficient to directly drive the unwinding mechanism 6 to rotate. Thus, when the lifting mechanism 15 is raised (sufficient to overcome the resistance of the damping mechanism), the length of the lifting plate 13 may be insufficient. At this time, the winding mechanism 7 will not be reused due to the limitation of unidirectional rotation, while the unwinding mechanism 6 will automatically achieve passive unwinding and automatic material replenishment. When the lifting mechanism 15 descends, the slack lifting plate 13 will be automatically wound back to the winding mechanism 7 under the action of the torsion spring 71. With the lifting mechanism 15 rising and falling (or the lifting plate 13 being tensioned and relaxed), the lifting plate 13 can be "automatically conveyed", continuously sending new and collecting old, thus maintaining the lifting plate 13 and filter cloth 14 in a better service condition, with a higher overall degree of automation.

[0047] Reference Figure 10 The damping mechanism at the unwinding mechanism 6 can be a damping pad 61 and a clamping nut 62 installed on the rotating shaft of the unwinding mechanism 6. The clamping nut 62 is used to adjust the tightness between the damping pad 61 and the enclosure support 1. The damping pad 61 can be made of a material such as rubber. When the tightness is high, the resistance that the rotating shaft of the unwinding mechanism 6 needs to overcome is greater, thereby achieving on-demand adjustment.

[0048] The implementation principle of this embodiment is as follows: Through the coordinated operation of components such as the enclosure support 1, the sound barrier 2, the walking mechanism 3, the dust suppression nozzles 11, and the noise reduction nozzles 4, the device simultaneously achieves dust suppression and noise reduction functions with minimal obstruction to visibility. The enclosure support 1 provides support and guidance for the movement of the sound barrier 2, and the walking mechanism 3 can flexibly adjust the position of the sound barrier 2 to adapt to different construction conditions. The dust suppression nozzles 11 and 4 target dust and noise respectively. The fan-shaped spray range and overlapping effect of the dust suppression nozzles 11 ensure comprehensive dust suppression, while the mist-like water curtain of the noise reduction nozzles 4 utilizes the water mist damping effect to reduce noise. The installation of the water guide rod 24, the light-transmitting plate 22, and the water curtain nozzles 23 further enhances the noise reduction effect and improves the convenience of observation. The lifting mechanism 15 and the lifting plate 13 work together to adjust the height of the sound barrier 2 according to actual needs. The automatic replacement function of the unwinding mechanism 6 and the winding mechanism 7 ensures the filtration performance of the filter cloth 14 and improves the overall performance and automation of the device. Compared with the existing technology, it solves the dust and noise reduction problem while better meeting the observation needs of the construction site.

[0049] This application also provides a method for controlling dust and noise pollution based on a dust and noise control device used at construction sites: Enclosure supports 1 are installed around or to the sides of the construction site. Dust and noise sensors are installed on the enclosure supports 1 and / or around them as needed. The dust and noise sensors can monitor the dust and noise levels at the construction site in real time, providing data support for subsequent remediation operations. The dust sensors can be laser scattering sensors, which are characterized by high accuracy and fast response; the noise sensors can be condenser microphones, which can accurately measure the intensity of ambient noise.

[0050] When the dust and noise levels at the construction site do not require additional control, the positions of several sound barriers 2 can be adjusted using the walking mechanism 3 to ensure even distribution of the sound barriers 2. The walking mechanism 3 is driven by a motor to move the sound barriers 2 along the toothed plates 12 of the enclosure support 1, achieving even distribution. At this point, the spacing between the sound barriers 2 is relatively large, allowing for direct observation of the construction progress on the other side of the enclosure support 1 through these gaps.

[0051] When there is a significant amount of dust in a particular area, the position of several sound barriers 2 is adjusted by the traveling mechanism 3, concentrating the sound barriers 2 in the area with the most dust. Simultaneously, several dust suppression nozzles 11 are activated to suppress dust in the construction area beside the enclosure support 1. Based on data from the dust sensor, the area with the most dust is identified. Then, the traveling mechanism 3 is controlled to move the sound barriers 2 to that area, while simultaneously opening the water supply valves of the dust suppression nozzles 11 to spray water mist and suppress the dust.

[0052] When there is significant localized dust and accompanying noise, noise-reducing nozzles 4 are activated (in actual scenarios, this can be achieved automatically by reducing the distance between adjacent sound barriers 2). The noise-reducing nozzles 4 spray a mist-like water curtain, with the water curtains between adjacent nozzles 4 positioned parallel to each other. When the noise sensor detects noise exceeding a set threshold, the noise-reducing nozzles 4 are activated. The mist-like water curtain effectively absorbs sound waves, reducing noise. Simultaneously, although water mist from the noise-reducing nozzles 4 exists at the gaps between adjacent sound barriers 2, it still meets certain observation needs, helping to roughly assess the construction progress on the other side.

[0053] The implementation principle of this embodiment is as follows: This treatment method monitors the dust and noise levels at the construction site in real time using dust and noise sensors. Based on the monitoring data, it flexibly adjusts the position of the sound barrier 2 and the opening status of the sprinklers, achieving simultaneous dust and noise reduction. Under different construction conditions, it can make reasonable use of the gaps in the sound barrier 2 to reduce the impact on visibility. At the same time, through the spraying action of the sprinklers, it effectively reduces dust and noise, improving the environmental quality of the construction site. Compared with traditional treatment methods, this method is more intelligent and efficient.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dust and noise control device for construction sites, characterized in that: The application relates to a fence support (1) which is provided with a plurality of soundproof barriers (2) and is characterized in that the bottom of each soundproof barrier (2) is provided with a walking mechanism (3) which can move along the fence support (1), the adjacent soundproof barriers (2) are provided with gaps, the front side of each soundproof barrier (2) is provided with a dust falling nozzle (11), and the side of each soundproof barrier (2) is provided with a noise reduction nozzle (4) whose spraying direction is arranged towards the gap between the adjacent soundproof barriers (2).

2. The dust and noise linkage control device for construction sites according to claim 1, characterized in that: The noise reduction nozzle (4) comprises an outer sleeve (41) and an inner sleeve (42) which are arranged in a nested mode, the end of the outer sleeve (41) is provided with a limiting ring (43) for limiting the sliding of the inner sleeve (42), the end of the inner sleeve (42) is provided with a trigger rod (44) which extends out of the limiting ring (43), the inner wall of the outer sleeve (41) and the inner sleeve (42) are provided with a reset elastic element (45) for pushing the trigger rod (44) out of the limiting ring (43), the side wall of the outer sleeve (41) is provided with a dust falling nozzle hole (46) and a noise reduction nozzle hole (47), the side wall of the inner sleeve (42) is provided with a dust falling displacement hole (48) and a noise reduction displacement hole (49), the dust falling displacement hole (48) is long strip-shaped, the length direction of the dust falling displacement hole (48) is arranged in parallel with the sliding direction of the inner sleeve (42) relative to the outer sleeve (41), the dust falling displacement hole (48) is communicated with the dust falling nozzle hole (46), and the outer sleeve (41) covers the noise reduction displacement hole (49).

3. The dust and noise linkage control device for construction sites according to claim 2, characterized in that: The end of the outer sleeve (41) is slidably provided with an adjusting rod (5), the end of the trigger rod (44) is provided with a plurality of adjusting grooves (51), the plurality of adjusting grooves (51) are uniformly distributed along the circumferential direction of the trigger rod (44), and the length direction of the adjusting grooves (51) is arranged along the radial direction of the trigger rod (44).

4. The dust and noise linkage control device for construction sites according to claim 1, characterized in that: The side wall of the soundproof barrier (2) is provided with a plurality of water guide rods (24), the plurality of water guide rods (24) are arranged in parallel and are inclined downward, and the plurality of water guide rods (24) of adjacent soundproof barriers (2) are arranged in interlaced and abutting modes.

5. The dust and noise linkage control device for construction sites according to claim 1, characterized in that: The middle part of the soundproof barrier (2) is provided with a light transmission area (21), the light transmission area (21) is provided with a light transmission plate (22), and the soundproof barrier (2) located above the light transmission plate (22) is provided with a water curtain nozzle (23).

6. The dust and noise linkage control device for construction sites according to claim 5, characterized in that: The inside of the fence support (1) is provided with a containing hole (10), the bottom of the soundproof barrier (2) is located in the containing hole (10), the inside of the containing hole (10) is provided with a lifting plate (13), the inside of the containing hole (10) located below the lifting plate (13) is provided with a lifting mechanism (15), and the soundproof barrier (2) is supported above the lifting plate (13).

7. The dust and noise linkage control device for construction sites according to claim 6, characterized in that: The inner wall of the accommodating hole (10) is provided with a toothed plate (12), the walking mechanism (3) comprises a driving walking gear (31) and a driven walking wheel (32), the driving walking gear (31) is engaged with the toothed plate (12), the driving walking gear (31) can slide up and down along the tooth groove of the toothed plate (12), and the lifting plate (13) is supported below the driven walking wheel (32).

8. The dust and noise linkage control device for construction sites according to claim 6, characterized in that: The lifting plate (13) is provided with a filter cloth (14) above, and the lifting plate (13) is provided with water-permeable holes (130) itself.

9. The dust and noise linkage control device for construction sites according to claim 8, characterized in that: The driving end of the lifting mechanism (15) is provided with a lifting wheel (16), the lifting wheel (16) is supported below the lifting plate (13), the lifting plate (13) is strip-shaped, and the fence support (1) is provided with an unwinding mechanism (6) and a winding mechanism (7) of the lifting plate (13).

10. A method for controlling dust and noise based on the device for controlling dust and noise in a construction site according to claim 1, characterized in that: The fence support (1) is arranged around or on the side of the construction site, and dust sensor and noise sensor are arranged on the fence support (1) and / or around the fence support (1) as needed; When the dust and noise of the construction site do not need additional treatment, the positions of the sound barriers (2) can be adjusted by the walking mechanism (3), so that the sound barriers (2) are uniformly distributed; When the dust is more in a local position, the positions of the sound barriers (2) are adjusted by the walking mechanism (3), the sound barriers (2) are arranged more concentratedly in the local position with more dust, and the dust falling nozzles (11) are opened, so that the dust falling treatment is realized on the construction area on the side of the fence support (1); When the dust is more in a local position and accompanied by noise, the noise reduction nozzles (4) are additionally opened, the spray mode of the noise reduction nozzles (4) is a misty water curtain, and the misty water curtains between the adjacent two noise reduction nozzles (4) are arranged in parallel.

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