Dust falling device for road green construction

Abstract

The present application relates to the technical field of construction dust fall, in particular to a dust fall device for green road construction. It comprises a control cabinet and a stake pole. The top of the stake pole is provided with a top cover and a spraying seat. A water supply pipe is connected to the spraying seat. A rotating mechanism is arranged between the top cover and the spraying seat. An inner cavity is formed in the spraying seat. A movable column is arranged in the inner cavity. The spraying seat is provided with a spraying mechanism which is connected to the inner cavity. The spraying mechanism comprises a raindrop sprayer and a microdrop sprayer. The movable column moves in the inner cavity following the rotating angle of the spraying seat, so as to switch the water flow spraying path and the spraying intensity. The corresponding spraying intensity water flow is matched with the raindrop sprayer or the microdrop sprayer. The device can not only form coverage on the far-end construction area smoke dust and improve the coverage range of the smoke dust, but also can weaken the water flow pressure sprayed to the near-end construction area smoke dust, so as to avoid the pressure concentration to generate too high impact force, which can cause the surface of the construction area to appear water accumulation or damage.

Description

Technical Field

[0001] This invention relates to the field of construction dust control technology, and more specifically, to a dust control device for green road construction. Background Technology

[0002] Road construction generates a large amount of dust, which is a major source of air pollution in cities. In order to reduce dust during road construction, the existing dust suppression methods mainly involve installing water pipes and atomizing nozzles along the top of the construction site fence to adsorb and settle dust in the air through spraying.

[0003] There are many existing technologies for dust suppression devices, such as: Chinese Patent Publication No. CN216755852U discloses a rotary nozzle for a spray pile. A motor is installed on the upper end of the mounting base. The motor has a motor shaft that runs vertically through both ends of the motor. A water flow hole is provided inside the motor shaft. A nozzle seat is fixedly connected to the upper end of the motor shaft. A rotary joint that communicates with the water flow hole is rotatably connected to the lower end of the motor shaft. A fixed block swings up and down inside the mounting base. A nozzle is provided on the fixed block. The nozzle is connected to the water flow hole through a connecting hose. A transmission mechanism is also provided inside the mounting base. The transmission mechanism can drive the nozzle to swing up and down by rotating the motor shaft.

[0004] Therefore, in the above-mentioned prior art, the spraying work is carried out by rotating the nozzle seat and nozzle through the motor shaft. During the rotation of the nozzle, the nozzle can be driven to swing up and down through the transmission mechanism, which can solve the problem of large-scale dust suppression in the area and greatly improve the dust suppression coverage.

[0005] Because the nozzle swings up and down through multiple U-shaped grooves, the angle of the water mist sprayed by the nozzle is limited by the U-shaped grooves. Furthermore, when the nozzle swings up and down, it cannot adjust the spray intensity of the water flow according to the distance between the construction area and the device. When spraying towards the near construction area, the water flow pressure is too high, which can generate a high impact force, resulting in problems such as water accumulation or even damage to the surface of the construction area. Summary of the Invention

[0006] This invention provides a dust suppression device for green road construction. The device uses a movable column that moves within the inner cavity following the rotation angle of the spray seat to switch the water jet path and spray intensity, thereby solving the problems mentioned in the background art, namely: when the nozzle sprays towards the near-end construction area, the large impact force causes water accumulation or even damage to the surface of the construction area.

[0007] To achieve the above objectives, a dust suppression device for green road construction includes a control cabinet and several piles located on both sides of the road. The top of each pile is provided with a top cover and a spray seat. A water supply pipe is connected to the spray seat. A rotating mechanism capable of driving the spray seat to adjust its angle is provided between the top cover and the spray seat. An inner cavity is formed inside the spray seat, and a movable column is provided in the inner cavity. The outside of the spray seat has a spraying mechanism that communicates with the inner cavity. The spraying mechanism includes raindrop nozzles and micro-droplet nozzles. When the rotating mechanism drives the spray seat to rotate, the movable column switches the water jet path and spray intensity according to the rotation angle of the spray seat, so that the water jet of the corresponding spray intensity matches the raindrop nozzle or micro-droplet nozzle, so as to cover the dust in the far or near construction area.

[0008] The rotating mechanism includes a first motor disposed inside the top cover. The output shaft of the first motor passes through the top of the top cover, and a bearing plate is fixedly connected to the output shaft. A support is fixedly disposed above the bearing plate.

[0009] The spray holder has an upper water delivery channel that communicates with the raindrop nozzle and a lower water delivery channel that communicates with the microdroplet nozzle, and the lower water delivery channels are arranged symmetrically.

[0010] The size of the raindrop nozzle is set to be larger than that of the microdroplet nozzle.

[0011] A column is installed inside the movable column, and an internal flow channel is formed around the column, which is narrow at the top and wide at the bottom, for water flow. The movable column is also provided with a water supply port and a water supply channel. The water supply channel connects the inner flow channel and the water supply pipe. In the initial state, the water supply port and the water supply channel are misaligned.

[0012] The movable column is provided with an upper flow channel and a lower flow channel that are connected to the inner flow channel. The upper flow channel is higher than the lower flow channel. The upper flow channel is connected to the upper water conveying channel, and the lower flow channel is misaligned with the lower water conveying channel.

[0013] The rotating mechanism also includes a second motor fixed on the support plate. The end of the second motor is provided with a drive gear. The drive gear meshes with a driven gear fixed to the bottom of the spray seat. A support shaft is rotatably provided between the driven gear and the support. The two ends of the support shaft are respectively fixed to the support.

[0014] A pull rod is fixedly installed at the bottom of the movable column, and limit strips are provided on both sides of the pull rod.

[0015] The end of the pull rod is provided with a baffle plate, and a stop block fixed to the support shaft is attached to the baffle plate. The stop block has an extension end that abuts against the baffle plate, and the extension end is located on the rotation path of the baffle plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In this dust suppression device for green road construction, the movable column moves within the inner cavity following the rotation angle of the spray base to switch the water jet path and spray intensity, matching the corresponding spray intensity water flow with the raindrop nozzle or micro-droplet nozzle. This not only covers the dust in the distant construction area, increasing the coverage area, but also reduces the water flow pressure sprayed towards the dust in the nearby construction area, thereby avoiding excessive impact force caused by pressure concentration, which could lead to water accumulation or damage on the surface of the construction area. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the pile structure of the present invention; Figure 3 This is a schematic diagram illustrating the rotation principle of the spray holder in this invention; Figure 4 This is a cross-sectional schematic diagram of the internal structure of the spray base and the movable column of the present invention; Figure 5 This is a cross-sectional schematic diagram of the internal structure of the movable column of the present invention; Figure 6 This is a schematic diagram of the water flow direction structure within the upper channel of the present invention; Figure 7 This is a schematic diagram showing the misalignment between the lower water conveyance channel and the movable column in this invention; Figure 8 This is a schematic diagram illustrating the principle of the downward movement of the movable column in this invention; Figure 9 This is a schematic diagram showing the overlap between the water supply inlet and the water supply channel of the present invention; Figure 10 This is a schematic diagram showing the overlap between the lower flow channel and the lower water conveyance channel of the present invention; Figure 11 This is a schematic diagram of the rotating spray holder of the present invention; Figure 12 This is a schematic diagram of the movement of the movable column in this invention.

[0018] The meanings of the labels in the diagram are as follows: 100. Control cabinet; 110. Pile rod; 111. Top cover; 120. Rotating mechanism; 121. First motor; 122. Support plate; 123. Second motor; 124. Driving gear; 125. Driven gear; 130. Sprayer base; 131. Support; 132. Water supply pipe; 133. Water supply channel; 134. Support shaft; 135. Abutment block; 140. Movable column; 141. Upper flow channel; 142. Lower flow channel; 143. Vertical column; 144. Inner flow channel; 145. Water inlet; 146. Tie rod; 147. Baffle plate; 148. Return spring; 150. Spraying mechanism; 151. Raindrop nozzle; 152. Microdroplet nozzle. Detailed Implementation

[0019] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] Therefore, considering the aforementioned problems such as water accumulation or even damage to the surface of the construction area due to the large impact force when the nozzle sprays water onto the near-end construction area, this invention provides a dust suppression device for green road construction, referencing... Figures 1-2 As shown, it includes a control cabinet 100 and several piles 110 located on both sides of the road. Each pile 110 has a top cover 111 and a spray nozzle 130 on its top. (Refer to...) Figure 3 As shown, a water supply pipe 132 is connected to the spray seat 130. A rotating mechanism 120 is provided between the top cover 111 and the spray seat 130, which can drive the spray seat 130 to adjust its angle. During dust suppression, water is supplied through the water supply pipe 132. The rotating mechanism 120 adjusts the angle of the spray seat 130 in multiple directions so that the sprayed water mist can cover a wider construction area. The spray seat 130 has an inner cavity, in which a movable column 140 is provided. The spray seat 130 has a spraying mechanism 150 connected to the inner cavity. The spraying mechanism 150 includes a raindrop nozzle 151 and a micro-droplet nozzle 152. When the rotating mechanism 120 drives the spray base 130 to rotate, the movable column 140 switches the water jet path and spray intensity according to the rotation angle of the spray base 130, so that the water jet of the corresponding spray intensity matches the raindrop nozzle 151 or the micro-droplet nozzle 152, so as to cover the dust in the far or near construction area; firstly, the rotating mechanism 120 includes Figure 3A first motor 121 is installed inside the top cover 111. The output shaft of the first motor 121 passes through the top of the top cover 111, and a support plate 122 is fixedly connected to the output shaft. A support 131 for supporting the spray seat 130 is fixedly installed above the support plate 122. When dust suppression is carried out in the construction area, water is supplied to the raindrop nozzle 151 or micro-drop nozzle 152 through the water supply pipe 132. The water flow is sprayed outward from the spray seat 130, thereby suppressing smoke and dust and preventing the spread of smoke and dust. In addition, the first motor 121 drives the support plate 122 to rotate, so that the sprayed water mist covers different construction areas, increasing the coverage of smoke and dust.

[0021] It should be understood that since the water supply pipe 132 passes through the top cover 111 and is connected to the spray seat 130, the water supply pipe 132 will rotate together when the spray seat 130 rotates. Therefore, the water supply pipe 132 between the top cover 111 and the spray seat 130 can be set as a corrugated pipe to accommodate the rotation and torsional deformation.

[0022] Then, due to Figure 2 The pile 110 is usually 6-15 meters long, so the spray seat 130 is in a high position. It takes a while for the water mist to fall to the ground. If it is windy, the water mist is easily blown away by the wind, which reduces its coverage effect on smoke and dust. Therefore, returning to Figure 3 As shown, the spray base 130 has an upper water delivery channel connected to the raindrop nozzle 151 and a lower water delivery channel connected to the micro-droplet nozzle 152. The lower water delivery channels are symmetrically arranged. In this way, when there is wind in the outside (in windless weather or when the wind speed is low, the wind speed sensor on the control cabinet 100 senses the external wind force and starts working when it exceeds the preset threshold), the water delivered to the inner cavity is discharged through the upper water delivery channel and the raindrop nozzle 151. Since the size of the raindrop nozzle 151 is set to be larger than that of the micro-droplet nozzle 152, the water mist particles sprayed from the raindrop nozzle 151 are relatively large. The larger the particle size, the greater the mass of a single water mist particle, which in turn increases the overall mass of the water mist. The water mist with a larger mass is less likely to be affected by the wind, thereby reducing the degree of water mist dispersion caused by the wind and improving the wind resistance and dust suppression effect of the water mist.

[0023] Following that, refer to Figure 4 , Figure 5As shown, a column 143 is installed inside the movable column 140. An inner flow channel 144, narrow at the top and wide at the bottom, is formed around the column 143 for water flow. A water inlet 145 and a water supply channel 133 are also provided on the movable column 140. The water supply channel 133 connects the inner flow channel 144 to the water supply pipe 132. Initially, the water inlet 145 and the water supply channel 133 are misaligned, with the lower edge of the water inlet 145 obstructing the water supply channel 133, thus reducing the cross-sectional area for water flow into the inner flow channel 144. Furthermore, an upper flow channel 141 and a lower flow channel 142, connected to the inner flow channel 144, are respectively provided inside the movable column 140. The height of the upper flow channel 141 is higher than that of the lower flow channel 142. The water flow direction in this state is referenced... Figure 6 As shown, the upper flow channel 141 is connected to the upper water conveyance channel, and the lower flow channel 142 is misaligned with the lower water conveyance channel (see reference). Figure 7 As shown), the inner flow channel 144 is in a tightening state from bottom to top. When the water flows, the cross-sectional area of ​​the water flow is reduced to increase the water flow velocity, thereby increasing the impact force of the water flow discharged from the raindrop nozzle 151 and expanding the dust suppression coverage area.

[0024] Conversely, when wind is present, the water flow delivered to the inner cavity is switched by the movable column 140, causing the water to flow from the upper water delivery channel to the lower water delivery channel, that is, the water is discharged from the lower water delivery channel. The specific process is shown below: Return to Figure 6 As shown, the rotating mechanism 120 also includes a second motor 123 fixed on the support plate 122. Therefore, when the support plate 122 rotates, the second motor 123 can rotate synchronously with the support plate 122. Furthermore, when the spray base 130 rotates (the rotation referred to here is: the spray base 130 and the movable column 140 rotate...), the second motor 123 can rotate synchronously with the support plate 122. Figure 8 The second motor 123 (rotating clockwise) has a drive gear 124 at its end. A driven gear 125, fixed to the bottom of the spray base 130, meshes with the drive gear 124. A support shaft 134 rotatably connects the driven gear 125 to the support 131, with both ends of the support shaft 134 fixed to the support 131, thus supporting the driven gear 125. When the water mist is affected by wind, the control system in the control cabinet 100 converts this wind signal into an electrical signal to control the second motor 123. The second motor 123 starts working, driving the drive gear 124 to rotate, which in turn drives the driven gear 125 to rotate. Figure 8 Rotate clockwise in the middle; Working principle: Simultaneously, the movable column 140 rotates synchronously with the spray base 130. Since a pull rod 146 is fixedly installed at the bottom of the movable column 140, and limit strips are provided on both sides of the pull rod 146, these limit strips and the pull rod 146 pass through the spray base 130, preventing the movable column 140 from rotating within the inner cavity. Furthermore, a return spring 148 is installed inside the inner cavity to support the movable column 140. Figure 8 The movable column 140 in its initial state is shown. When the driven gear 125 rotates, a baffle 147 is provided at the end of the pull rod 146. A stop block 135 fixed to the support shaft 134 is attached to the baffle 147. The stop block 135 has an extension end that abuts against the baffle 147. The extension end is located on the rotation path of the baffle 147. As the driven gear 125 rotates, the baffle 147 is gradually pushed out by the extension end of the stop block 135, the movable column 140 slides downward, the return spring 148 is compressed, and the elastic potential energy increases. At this time, based on Figure 8 Based on and combined Figure 9 As shown, Figure 8 , Figure 9 The image shows the movable column 140 in two states. Initially, the upper flow channel 141 is connected to the upper water delivery channel, and the water supply channel 133 and the water supply port 145 are misaligned. However, as the height of the movable column 140 decreases... Figure 9 In the state shown, the water supply channel 133 is completely aligned with the water supply outlet 145, and the upper flow channel 141 is disconnected from the upper water delivery channel. During this process, because the water supply channel 133 is fully opened, the restriction on the internal flow of water is lifted, the lower flow channel 142 is aligned with the lower water delivery channels on both sides, and the water in the inner flow channel 144 is sprayed out from the micro-droplet nozzles 152 on both sides.

[0025] It should be noted that: Reference Figure 12 As shown, during the process of the lower flow channel 142 coinciding with the lower water conveying channels on both sides, the upper flow channel 141 and the upper water conveying channel are in a misaligned state, and the lower flow channel 142 and the lower water conveying channels on both sides are also in a misaligned state until the lower flow channel 142 completely coincides with the lower water conveying channels on both sides, at which point the upper flow channel 141 and the upper water conveying channel are completely misaligned.

[0026] That is, reference Figure 10 As shown, by having the water in the inner flow channel 144 flow out from the lower water supply channels on both sides, and the two micro-droplet nozzles 152 spray water mist simultaneously, the pressure released can be dispersed over a wider area, which helps to improve the uniformity of contact between the water mist and the surrounding dust. Moreover, unlike the concentrated pressure release of a single micro-droplet nozzle 152, this can avoid the excessive water mist impact force generated in the local construction area due to the excessively concentrated pressure release, which could lead to water accumulation on the surface of the construction area or even impact damage to surrounding equipment.

[0027] In other words, the movable column 140 moves within the inner cavity following the rotation angle of the spray base 130 to switch the water jet path and spray intensity, so that the water jet of the corresponding spray intensity matches the raindrop nozzle 151 or the micro-droplet nozzle 152. This not only covers the dust in the far-end construction area and increases the coverage of dust, but also reduces the water jet pressure sprayed towards the dust in the near-end construction area, thereby avoiding excessive impact force caused by pressure concentration, which could lead to water accumulation or damage on the surface of the construction area.

[0028] refer to Figure 11 As shown, Figure 11 The image shows the spray holder 130 in an tilted state after rotation. At this position, no water mist is sprayed from the raindrop nozzle 151, while water mist is sprayed from the micro-droplet nozzle 152. Since the micro-droplet nozzle 152 is smaller than the raindrop nozzle 151, the water mist particles it sprays are relatively smaller. The simultaneous spraying of water mist from both micro-droplet nozzles 152 reduces the impact on the surface of the near-end construction area. Furthermore, by tilting the water mist sprayed from the micro-droplet nozzles 152 downwards, the time the water mist spends in the air is reduced, thus improving the coverage of smoke and dust. Conversely, when the spray holder 130 is in a tilted position... Figure 3 When in the indicated state, water mist is sprayed from the raindrop nozzle 151 to cover the smoke and dust at a distance.

[0029] Furthermore, when the spray nozzle 130 rotates in the opposite direction, the extended end of the stop block 135 releases the baffle 147 and pushes the movable column 140 upward under the action of the return spring 148, thereby realizing the switching from the micro-droplet nozzle 152 to the raindrop nozzle 151.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for green road construction, comprising a control cabinet (100) and a plurality of piles (110) installed on both sides of the road, characterized in that: The top of the pile (110) is provided with a top cover (111) and a spray seat (130) in sequence. A water supply pipe (132) is connected to the spray seat (130). A rotating mechanism (120) capable of driving the spray seat (130) to adjust its angle is provided between the top cover (111) and the spray seat (130). An inner cavity is formed inside the spray seat (130), and a movable column (140) is provided in the inner cavity. The outside of the spray seat (130) has a spraying mechanism (150) that communicates with the inner cavity. The spraying mechanism (150) includes a raindrop nozzle (151) and a micro-droplet nozzle (152). When the rotating mechanism (120) drives the spray seat (130) to rotate, the movable column (140) switches the water jet path and spray intensity according to the rotation angle of the spray seat (130), so that the water jet of the corresponding spray intensity is matched with the raindrop nozzle (151) or the micro-droplet nozzle (152) to cover the dust in the far or near construction area.

2. The dust suppression device for green road construction according to claim 1, characterized in that: The rotating mechanism (120) includes a first motor (121) disposed inside the top cover (111). The output shaft of the first motor (121) passes through the top of the top cover (111), and a bearing plate (122) is fixedly connected to the output shaft. A support (131) is fixedly disposed above the bearing plate (122).

3. The dust suppression device for green road construction according to claim 1, characterized in that: The spray holder (130) has an upper water delivery channel that communicates with the raindrop nozzle (151) and a lower water delivery channel that communicates with the micro-droplet nozzle (152), and the lower water delivery channels are symmetrically arranged.

4. The dust suppression device for green road construction according to claim 1, characterized in that: The size of the raindrop nozzle (151) is set to be larger than that of the microdroplet nozzle (152).

5. The dust suppression device for green road construction according to claim 3, characterized in that: A column (143) is provided inside the movable column (140), and an inner flow channel (144) is formed around the column (143) that is narrow at the top and wide at the bottom for water flow. The movable column (140) is also provided with a water inlet (145) and a water supply channel (133). The water supply channel (133) connects the inner flow channel (144) and the water supply pipe (132). In the initial state, the water inlet (145) and the water supply channel (133) are misaligned.

6. The dust suppression device for green road construction according to claim 5, characterized in that: The movable column (140) is provided with an upper flow channel (141) and a lower flow channel (142) that are connected to the inner flow channel (144). The upper flow channel (141) is higher than the lower flow channel (142). The upper flow channel (141) is connected to the upper water conveying channel, and the lower flow channel (142) is misaligned with the lower water conveying channel.

7. The dust suppression device for green road construction according to claim 2, characterized in that: The rotating mechanism (120) also includes a second motor (123) fixed on the support plate (122). The end of the second motor (123) is provided with a drive gear (124). The drive gear (124) is meshed with a driven gear (125) fixed to the bottom of the spray seat (130). A support shaft (134) is rotatably provided between the driven gear (125) and the support (131). Both ends of the support shaft (134) are fixed to the support (131).

8. The dust suppression device for green road construction according to claim 7, characterized in that: A pull rod (146) is fixedly installed at the bottom of the movable column (140), and limit strips are provided on both sides of the pull rod (146).

9. The dust suppression device for green road construction according to claim 8, characterized in that: The end of the pull rod (146) is provided with a baffle (147), and a stop block (135) fixed to the support shaft (134) is attached to the baffle (147). The stop block (135) has an extension end that abuts against the baffle (147), and the extension end is located on the rotation path of the baffle (147).

10. The dust suppression device for green road construction according to claim 1, characterized in that: A return spring (148) is provided inside the cavity to support the movable column (140).

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