Atmospheric dust suppression equipment for building construction excavation

Abstract

The invention discloses atmospheric dust suppression equipment for building construction excavation, and relates to the technical field of building equipment. The device comprises a supporting frame, an electric rotating rod is rotatably mounted at the bottom of the inner wall of the supporting frame, a U-shaped plate is fixedly mounted at the top of the electric rotating rod, two connecting rods are symmetrically arranged in the U-shaped plate, a spraying mechanism is arranged between the sides, close to each other, of the two connecting rods, and a transmission rod is arranged in the spraying mechanism. Through the arrangement of structures such as the sliding groove base, the spraying mechanism is promoted to achieve fixed and movable use modes, the actual application range is expanded, meanwhile, a square frame expands the interception range of the dustproof mechanism, the dustproof mechanism absorbs water mist, waste caused by rapid air drying of the water mist sprayed to the high position in the falling process is avoided, and the practicability is high. And when the wetted dustproof mechanism blows wind, dust raised on the ground is adsorbed and inhibited in time, and the dust suppression efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, specifically to an atmospheric dust suppression device for construction excavation. Background Technology

[0002] Construction sites typically generate a large amount of dust during construction. If this dust is left untreated, it can easily affect the health of construction workers and people in the surrounding area, and also cause some pollution to the environment. Therefore, dust suppression equipment is usually installed at construction sites.

[0003] Patent publication number CN116328460B discloses a dust suppression device for road construction excavation, relating to the field of construction site technology. This dust suppression device includes a support frame, with a vertical pipe fixedly connected to the upper side of the support frame. An installation head is fixedly connected to the upper side of the vertical pipe, and the installation head has an installation hole. An atomizing nozzle is fixedly connected inside the installation hole. The input and output ends of the atomizing nozzle connect the inside and outside of the installation head. An inlet pipe and an outlet pipe are fixedly connected to the left and right sides of the vertical pipe, respectively, and the inside of the vertical pipe connects to the outside through the inlet and outlet pipes. This dust suppression device, through its fixing mechanism, allows for quick fixing and dismantling at a predetermined position, achieving rapid fixation and enabling quick adjustment of the dust suppression position.

[0004] However, the device still has shortcomings: the device can quickly adjust the position of the dust suppression mechanism through the fixing mechanism, but the construction site is relatively open, so the dust dispersion direction is more disordered under the influence of strong winds. Therefore, spraying in one direction is difficult to stop the dust dispersion and reduce the dust suppression effect. At the same time, the water mist sprayed to the height is easy to dry quickly during the fall, so it is difficult to suppress the dust initially raised on the ground in time. It is also difficult to ensure that the dust suppression mechanism is fully and evenly moistened to suppress the dust raised on the ground. It also cannot achieve the goal of eliminating the need for staff to manually clean the dust adhering to its surface during long-term use. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an atmospheric dust suppression device for construction excavation, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an atmospheric dust suppression device for construction excavation, comprising a support frame, an electric rotating rod rotatably mounted on the bottom of the inner wall of the support frame, a U-shaped plate fixedly mounted on the top of the electric rotating rod, two connecting rods symmetrically arranged inside the U-shaped plate, a spraying mechanism arranged between the two connecting rods on their closest sides, a transmission rod arranged inside the spraying mechanism, a plurality of scraper rods equidistantly and fixedly mounted on the outer wall of the top of the transmission rod, a contact plate movably mounted through the outer wall of the reciprocating spiral groove of the electric rotating rod, a limit rod fixedly mounted inside the support frame, a plurality of trapezoidal frames equidistantly and slidably mounted on the top of the inner wall of the support frame via springs, a sliding seat provided at the bottom of the support frame, a limit frame fixedly mounted inside the sliding seat, a square frame slidably mounted inside the limit frame via springs, a dustproof mechanism fixedly mounted on the outer wall of the square frame, a wetting device provided around the sliding seat to ensure sufficient wetting of the dustproof mechanism, and an anti-accumulation device provided around the wetting device to prevent excessive dust accumulation.

[0007] According to the above technical solution, the outer wall of the electric rotating rod is provided with a non-self-locking reciprocating spiral groove, the U-shaped plate is located at the top of the support frame, the outer side wall of the U-shaped plate is provided with a servo motor, the end of the connecting rod near the side wall of the U-shaped plate is fixedly installed at the output end of the servo motor, the transmission rod is electrically driven, and the scraper is in contact with the outer wall of the spray nozzle of the spray mechanism.

[0008] According to the above technical solution, the contact plate is circular in design, and is internally and slidably installed on the outer wall of the limiting rod. The outer wall of the contact plate contacts the inclined surface of the trapezoidal frame. An arc-shaped groove is provided at the top edge of the sliding seat. The square frame contacts the outer wall of the trapezoidal frame on the side near the support frame. A moving mechanism is provided at the bottom of the square frame. The dustproof mechanism consists of a dustproof cloth and several support nodes. The dustproof cloth is redundant when not unfolded. When the spraying mechanism is moved by a vehicle and sprays dust, the electric rotating rod is activated. When the electric rotating rod rotates inside the support frame, it drives the U-shaped plate to revolve. When the U-shaped plate revolve, it drives the servo motor, connecting rod, and spraying mechanism to move synchronously. After activation, the spraying mechanism first sprays dust around its rotation during its revolve. Then, the servo motor is activated, and the output end of the servo motor drives the connecting rod to rotate back and forth. When the connecting rod rotates back and forth, it causes the spraying mechanism to perform oscillating spraying to expand the spray angle. At the same time, the electric... The drive rod rotates inside the spray mechanism, and the drive rod drives the scraper to revolve and scrape along the spray nozzle of the spray mechanism. When the spray mechanism is fixed for dust suppression, the slide seat is set at the bottom of the support frame for support. When the electric rotating rod rotates, the non-self-locking reciprocating spiral groove drives the contact plate to slide upward along its own outer wall and the limit rod and reset. This process is repeated. When the contact plate rises, it contacts and abuts the inclined surface of the trapezoidal frame. The trapezoidal frame slides horizontally along the top of the inner wall of the support frame by the contact force, and then resets by the spring force. When the trapezoidal frame moves, it pushes the square frame to slide along the inside of the limit frame, and the slide seat limits the limit frame. When the square frame drives the moving mechanism at its bottom to make a horizontal circle, the moving mechanism supports the square frame, and the square frame causes the redundant dustproof cloth in the dustproof mechanism to unfold. During the unfolding of the dustproof cloth, the water mist sprayed by the revolving and non-flipping spray mechanism will wet the dustproof cloth.

[0009] According to the above technical solution, the immersion device includes a symmetrical frame, the top of which is fixedly installed at the top edge of the inner wall of the square frame, and vertical plates are symmetrically and slidably installed inside the symmetrical frame via springs. An arc rod is fixedly installed inside the arc groove of the slide seat, and a telescopic water guide plate is rotatably installed on the outer wall of the arc rod via a torsion spring. An assist plate is fixedly installed on the top of the telescopic water guide plate.

[0010] According to the above technical solution, both ends of the symmetrical frame are hollowed out, the bottom of the vertical plate is curved, and the telescopic water guide plate is elastic. The outer wall of the telescopic end of the telescopic water guide plate contacts the side of the dustproof mechanism near the slide seat. The side of the assist plate away from the dustproof mechanism is located on the movement trajectory of the side wall of the vertical plate. The square frame drives the symmetrical frame to move away from the slide seat, and the symmetrical frame drives the vertical plate to move synchronously. When the vertical plate moves horizontally, it contacts and abuts the assist plate. Since the spring force of the vertical plate is greater than the torsion spring force of the telescopic water guide plate, and the vertical plate abuts the assist plate... Simultaneously, the arc rod limits the telescopic water guide plate, causing it to rotate. At this time, the telescopic water guide plate flips along the outer wall of the arc rod, and its telescopic end contacts the dustproof mechanism. The telescopic water guide plate then guides the spray water it receives to the dustproof mechanism, thereby wetting the bottom of the dustproof cloth. When the telescopic water guide plate is limited by the dustproof mechanism, the vertical plate slides upward along the inside of the symmetrical frame and passes over the assist plate. At this time, the telescopic water guide plate resets through the torsion spring and drives the assist plate to reset. This process repeats, causing the telescopic water guide plate to flip back and forth.

[0011] According to the above technical solution, an elastic telescopic rod is fixedly installed at the bottom of the symmetrical frame. The outer wall of the elastic telescopic rod movably penetrates the bottom of the square frame. A transmission plate is fixedly installed at the bottom of the telescopic end of the elastic telescopic rod. Two friction wheels are symmetrically and rotatably installed on the transmission plate. The friction wheels are in contact with the ground. The symmetrical frame drives the elastic telescopic rod to move synchronously. The telescopic end of the elastic telescopic rod drives the transmission plate to move synchronously. The transmission plate drives the friction wheels to move synchronously along the ground. Friction is generated between the friction wheels and the ground, causing them to rotate inside the transmission plate. Due to the telescopic setting of the elastic telescopic rod, when the height of the friction wheels facing the ground is uneven, their outer walls can always be in close contact with the ground.

[0012] According to the above technical solution, the anti-accumulation device includes a reciprocating screw, with both ends of the reciprocating screw fixedly installed between two friction wheels on their respective sides. The outer wall of the reciprocating screw is a non-self-locking reciprocating spiral groove. An L-shaped plate is movably installed through the outer wall of the reciprocating screw. The top of the L-shaped plate is slidably installed on the top of the inner wall of the transmission plate. A telescopic brush plate is hinged to the top of the inner wall of the L-shaped plate by a torsion spring. The telescopic brush plate has a built-in spring. When the friction wheels rotate, they drive the reciprocating screw to rotate. The reciprocating screw, limited by the non-self-locking reciprocating spiral groove on its own outer wall, drives the L-shaped plate to slide horizontally along the top of the inner wall of the transmission plate and reset. This process is repeated. At the same time, the L-shaped plate drives the telescopic brush plate to move synchronously. The telescopic end of the telescopic brush plate is always in close contact with the ground by the spring force. When the telescopic brush plate encounters an obstacle, resistance is generated. At this time, the hinge shaft of the telescopic brush plate starts to rotate, and the telescopic brush plate moves the obstacle in an arc-shaped posture, avoiding a sudden rise or eccentric force when the square frame drives the moving mechanism to move.

[0013] According to the above technical solution, the anti-accumulation device also includes a round rod. The end of the round rod near the reciprocating screw is fixedly installed on the outer side wall of the square frame. A sliding plate is slidably attached to the outer wall of the round rod through a spring. An extrusion block is fixedly installed on the end of the sliding plate near the reciprocating screw. An arc-shaped block is fixedly installed on the outer side wall of the sliding plate. A U-shaped frame is fixedly installed on the side of the L-shaped plate near the arc-shaped block.

[0014] According to the above technical solution, the outer wall of the extrusion block contacts the dustproof cloth in the dustproof mechanism, the arc surface of the arc block is located on the movement trajectory of the top of the U-shaped frame, and at the same time the L-shaped plate drives the U-shaped frame to move horizontally and reset. When the U-shaped frame moves, it will abut against the arc surface of the arc block. At this time, the arc block pushes the sliding plate along the outer wall of the round rod towards the dustproof mechanism through the abutment force. The sliding plate drives the extrusion block to move synchronously. The extrusion block will abut against the dustproof cloth in the dustproof mechanism and deform. That is, the dustproof cloth in the expansion process will produce a certain amplitude of fluctuation, and so on.

[0015] This invention provides an atmospheric dust suppression device for construction excavation. It has the following beneficial effects: (1) This invention utilizes an electric rotating rod, a U-shaped plate, a connecting rod, a spraying mechanism, a transmission rod, a scraper, a contact plate, a limiting rod, a trapezoidal frame, a sliding seat, a limiting frame, a square frame, and a dustproof mechanism. Driven by the electric rotating rod and a servo motor, it effectively expands the spraying angle and range of the spraying mechanism during the mobile spraying process. Unlike fixed-angle spraying which is easily affected by wind direction and causes water mist to be blown away, this invention continuously changes the spraying direction during the movement to ensure the dust suppression effect. The rotating scraper effectively prevents the spraying nozzle from being blocked by dust adhesion during use. The design of the sliding seat and other structures enables the spraying mechanism to achieve both fixed and mobile usage modes, expanding the actual application range. At the same time, the square frame expands the interception range of the dustproof mechanism, and the dustproof mechanism absorbs water mist, preventing water mist sprayed to high places from drying quickly during the fall and causing waste. This allows the wet dustproof mechanism to promptly absorb and suppress dust raised on the ground when the wind blows, improving the dust suppression efficiency.

[0016] (2) The present invention, through the setting of the immersion device, through the cooperation of the square frame, symmetrical frame, vertical plate, arc rod, telescopic water guide plate, auxiliary plate, elastic telescopic rod, transmission plate and friction wheel, through the contact of the vertical plate, enables the telescopic water guide plate to ensure that the lower part of the dustproof mechanism can be quickly immersed and humidified, further saving water resources and ensuring that the dustproof mechanism is evenly humidified, while promoting the dustproof mechanism to quickly adsorb and intercept ground dust, avoiding dust flying due to partial lack of humidification and reducing the uniformity of dust adsorption by the dustproof mechanism; through the friction wheel and transmission plate to support the square frame, it avoids the expanded dustproof mechanism and square frame from increasing the weight burden on the limit frame, realizing the equal distribution of weight, and avoiding the deviation between the limit frame and the slide seat, thus affecting the horizontal sliding of the square frame.

[0017] (3) The present invention, through the setting of the anti-accumulation device, through the cooperation of friction wheel, reciprocating screw, L-shaped plate, telescopic brush plate, round rod, sliding plate, extrusion block, arc block and U-shaped frame, and through the telescopic brush plate to clean in a timely and effective manner, ensures that the square frame is always in a relatively stable posture during the movement, and avoids the pulling of the upper and lower ends of the dustproof mechanism due to the sudden increase in height or the generation of bias force on one side of the square frame, which would increase the probability of damage to the dustproof mechanism; through the extrusion block to make the dustproof cloth fluctuate to a certain extent during the expansion process, so that the water vapor absorbed by the dustproof cloth can be quickly dissipated inside itself, while shaking off the wet dust attached to itself, avoiding the accumulation of dust due to excessive adhesion, which would weaken the dust suppression effect of the dustproof mechanism, and make the dustproof mechanism not require manual cleaning during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire invention; Figure 2 This is a cross-sectional schematic diagram of the entire invention; Figure 3 This is a schematic diagram of the overall structure of the mobile dust suppression system of the present invention; Figure 4 This is a schematic diagram of the overall structure of the fixed dust suppression system of the present invention; Figure 5 This is a cross-sectional schematic diagram of the fixed dust suppression system of the present invention; Figure 6 This is a schematic diagram of the immersion device of the present invention; Figure 7 This is a cross-sectional view of the immersion device of the present invention; Figure 8 This is a schematic diagram of the bottom view of the anti-accumulation device of the present invention; Figure 9 This is a cross-sectional schematic diagram of the anti-accumulation device of the present invention.

[0019] In the diagram: 1. Support frame; 2. Electric rotating rod; 3. U-shaped plate; 4. Connecting rod; 5. Spraying mechanism; 6. Transmission rod; 7. Scraper rod; 8. Contact plate; 9. Limiting rod; 10. Trapezoidal frame; 11. Slide seat; 12. Limiting frame; 13. Square frame; 14. Dustproof mechanism; 15. Immersion device; 151. Symmetrical frame; 152. Vertical plate; 153. Arc rod; 154. Telescopic water guide plate; 155. Assist plate; 156. Elastic telescopic rod; 157. Transmission plate; 158. Friction wheel; 16. Anti-accumulation device; 161. Reciprocating screw; 162. L-shaped plate; 163. Telescopic brush plate; 164. Round rod; 165. Sliding plate; 166. Extrusion block; 167. Arc block; 168. U-shaped frame. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Please see Figures 1-9 One embodiment of the present invention is: an atmospheric dust suppression device for construction excavation, comprising a support frame 1, an electric rotating rod 2 rotatably mounted on the bottom of the inner wall of the support frame 1, a U-shaped plate 3 fixedly mounted on the top of the electric rotating rod 2, two connecting rods 4 symmetrically arranged inside the U-shaped plate 3, a spraying mechanism 5 arranged between the two connecting rods 4 on one side close to each other, a transmission rod 6 arranged inside the spraying mechanism 5, a plurality of scraper rods 7 equidistantly and fixedly mounted on the outer wall of the top of the transmission rod 6, and an abutment plate 8 movably mounted through the outer wall of the reciprocating spiral groove of the electric rotating rod 2. A limiting rod 9 is fixedly installed inside the frame 1. Several trapezoidal frames 10 are equidistantly and slidably installed on the top of the inner wall of the supporting frame 1 via springs. A sliding seat 11 is provided at the bottom of the supporting frame 1. A limiting frame 12 is fixedly installed inside the sliding seat 11. A square frame 13 is slidably installed inside the limiting frame 12 via springs. A dustproof mechanism 14 is fixedly installed on the outer wall of the square frame 13. An immersion device 15 is provided around the sliding seat 11 to ensure that the dustproof mechanism 14 is fully moistened. An anti-accumulation device 16 is provided around the immersion device 15 to prevent excessive dust accumulation.

[0022] The outer wall of the electric rotating rod 2 is provided with a non-self-locking reciprocating spiral groove. The U-shaped plate 3 is located at the top of the support frame 1. A servo motor is provided on the outer side wall of the U-shaped plate 3. The connecting rod 4 is fixedly installed at the output end of the servo motor near the side wall of the U-shaped plate 3. The transmission rod 6 is electrically driven. The scraper 7 is in contact with the outer wall of the spray nozzle of the spray mechanism 5.

[0023] The contact plate 8 is circular in design. It is slidably installed on the outer wall of the limiting rod 9. The outer wall of the contact plate 8 contacts the inclined surface of the trapezoidal frame 10. The top edge of the slide seat 11 is provided with an arc groove. The square frame 13 is in contact with the outer wall of the trapezoidal frame 10 on the side near the support frame 1. The bottom of the square frame 13 is provided with a moving mechanism. The dustproof mechanism 14 is composed of a dustproof cloth and several support nodes. The dustproof cloth is redundant when it is not unfolded.

[0024] Driven by the electric rotating rod 2 and the servo motor, the spray angle and range of the spray mechanism 5 during the mobile spraying process are effectively expanded. Unlike fixed-angle spraying dust suppression which is easily affected by wind direction and causes the water mist to be blown away, the spray direction is constantly changed during the movement to ensure the dust suppression effect. In addition, the rotating scraper 7 effectively avoids the spray nozzle of the spray mechanism 5 from being blocked by dust adhesion during use. Through the setting of structures such as the sliding seat 11, the spray mechanism 5 can realize both fixed and mobile use, expanding the actual application range. At the same time, the square frame 13 expands the interception range of the dust suppression mechanism 14, and the dust suppression mechanism 14 absorbs water mist, preventing water mist sprayed to high places from drying quickly during the fall and being wasted. This allows the wet dust suppression mechanism 14 to promptly absorb and suppress dust raised from the ground when the wind blows, improving the dust suppression efficiency.

[0025] When in use, the spray mechanism 5 is moved by a vehicle for dust suppression. The electric rotating rod 2 is activated, and as it rotates within the support frame 1, it drives the U-shaped plate 3 to revolve. The U-shaped plate 3's revolve movement drives the servo motor, connecting rod 4, and spray mechanism 5 to move synchronously. After activation, the spray mechanism 5 first sprays dust around its rotation point during its revolve. Then, the servo motor is activated, and its output drives the connecting rod 4 to rotate back and forth. The reciprocating rotation of the connecting rod 4 causes the spray mechanism 5 to perform a swinging spray to expand the spray angle. Simultaneously, the electrically driven transmission rod 6 rotates inside the spray mechanism 5, driving the scraper 7 to revolve and scrape along the spray nozzle of the spray mechanism 5. When the spray mechanism 5 is stationary for dust suppression, the slide seat 11 is placed at the bottom of the support frame 1 for support. The electric rotating rod 2 rotates... During rotation, driven by its own non-self-locking reciprocating spiral groove, the contact plate 8 slides upward along its own outer wall and the limit rod 9 and resets. This process is repeated. When the contact plate 8 rises, it contacts and abuts the inclined surface of the trapezoidal frame 10. The trapezoidal frame 10 slides horizontally along the top of the inner wall of the support frame 1 by the contact force, and then resets by the spring force. When the trapezoidal frame 10 moves, it pushes the square frame 13 to slide along the inside of the limit frame 12, and the slide seat 11 limits the limit frame 12. When the square frame 13 drives the moving mechanism at its bottom to make a horizontal circle, the moving mechanism will support the square frame 13, and the square frame 13 will cause the redundant dustproof cloth in the dustproof mechanism 14 to unfold. During the unfolding of the dustproof cloth, the water mist sprayed by the revolving and non-flipping spray mechanism 5 will wet the dustproof cloth.

[0026] According to the above embodiments, the spray angle and range of the spray mechanism 5 during the moving spray process are effectively expanded by the electric rotating rod 2 and the servo motor drive. Unlike fixed-angle spray dust suppression which is easily affected by wind direction and causes water mist to be blown away, the spray direction is constantly changed during the movement to ensure the dust suppression effect. In addition, the rotating scraper 7 effectively avoids the spray nozzle of the spray mechanism 5 from being blocked by dust adhesion during use. Through the setting of structures such as the sliding seat 11, the spray mechanism 5 can realize both fixed and moving usage modes, expanding the actual application range. At the same time, the square frame 13 expands the interception range of the dust suppression mechanism 14, and the dust suppression mechanism 14 absorbs water mist, preventing water mist sprayed to high places from drying quickly during the fall and causing waste. This allows the wet dust suppression mechanism 14 to timely absorb and suppress dust raised from the ground when the wind blows, improving the dust suppression efficiency.

[0027] Please see Figures 1-9 Based on the above embodiments, another embodiment of the present invention further includes an immersion device 15; The immersion device 15 includes a symmetrical frame 151. The top of the symmetrical frame 151 is fixedly installed at the top edge of the inner wall of the square frame 13. A vertical plate 152 is symmetrically and slidably installed inside the symmetrical frame 151 via a spring. An arc rod 153 is fixedly installed inside the arc groove of the slide seat 11. A telescopic water guide plate 154 is rotatably installed on the outer wall of the arc rod 153 via a torsion spring. An assist plate 155 is fixedly installed on the top of the telescopic water guide plate 154.

[0028] Both ends of the symmetrical frame 151 are hollowed out, the bottom of the vertical plate 152 is curved, the telescopic water guide plate 154 is elastic, the outer wall of the telescopic end of the telescopic water guide plate 154 contacts the side of the dustproof mechanism 14 near the slide seat 11, and the side of the assist plate 155 away from the dustproof mechanism 14 is located on the movement trajectory of the side wall of the vertical plate 152.

[0029] A flexible telescopic rod 156 is fixedly installed at the bottom of the symmetrical frame 151. The outer wall of the flexible telescopic rod 156 moves through the bottom of the square frame 13. A transmission plate 157 is fixedly installed at the bottom of the telescopic end of the flexible telescopic rod 156. Two friction wheels 158 are symmetrically and rotatably installed on the transmission plate 157. The friction wheels 158 are in contact with the ground.

[0030] The vertical plate 152 abuts against the surface, allowing the telescopic water guide plate 154 to ensure rapid immersion and humidification of the lower part of the dustproof mechanism 14. This further saves water resources and ensures uniform humidification of the dustproof mechanism 14, while also enabling the dustproof mechanism 14 to quickly adsorb and intercept ground dust. This prevents dust from flying due to partial lack of humidification and reduces the uniformity of dust adsorption by the dustproof mechanism 14. The friction wheel 158 and the transmission plate 157 support the square frame 13, preventing the expanded dustproof mechanism 14 and the square frame 13 from increasing the weight burden on the limit frame 12. This achieves equal distribution of weight and prevents the limit frame 12 from tilting off the slide seat 11, thus affecting the horizontal sliding of the square frame 13.

[0031] In use, the square frame 13 drives the symmetrical frame 151 to move away from the slide seat 11. The symmetrical frame 151 drives the vertical plate 152 to move synchronously. When the vertical plate 152 moves horizontally, it contacts and abuts the auxiliary plate 155. Since the spring force of the vertical plate 152 is greater than the torsion spring force of the telescopic water guide plate 154, and at the same time that the vertical plate 152 abuts the auxiliary plate 155, the arc rod 153 limits the telescopic water guide plate 154. In summary, this causes the telescopic water guide plate 154 to generate a rotational force. At this time, the telescopic water guide plate 154 flips along the outer wall of the arc rod 153, and its telescopic end contacts the dustproof mechanism 14. At this time, the telescopic water guide plate 154 guides the spray water it receives to the dustproof mechanism 14, thereby wetting the bottom of the dustproof cloth. After the water plate 154 is limited by the dustproof mechanism 14, the vertical plate 152 slides upward along the inside of the symmetrical frame 151 and passes over the auxiliary plate 155. At this time, the telescopic water guide plate 154 is reset by the torsion spring and drives the auxiliary plate 155 to be reset. This process is repeated to make the telescopic water guide plate 154 able to flip back and forth. The symmetrical frame 151 drives the elastic telescopic rod 156 to move synchronously. The telescopic end of the elastic telescopic rod 156 drives the transmission plate 157 to move synchronously. The transmission plate 157 drives the friction wheel 158 to move synchronously along the ground. The friction wheel 158 generates friction with the ground and thus rotates inside the transmission plate 157. Relying on the telescopic setting of the elastic telescopic rod 156, when the height of the friction wheel 158 facing the ground is uneven, its outer wall can always be in close contact with the ground.

[0032] According to the above embodiment, the contact of the vertical plate 152 enables the telescopic water guide plate 154 to ensure that the lower part of the dustproof mechanism 14 is quickly soaked and humidified, further saving water resources and ensuring that the dustproof mechanism 14 is evenly humidified. At the same time, it enables the dustproof mechanism 14 to quickly adsorb and intercept ground dust, avoiding dust flying due to partial lack of humidification and reducing the uniformity of dust adsorption by the dustproof mechanism 14. The friction wheel 158 and the transmission plate 157 support the square frame 13, avoiding the expansion of the dustproof mechanism 14 and the square frame 13 from increasing the weight burden on the limit frame 12, achieving equal distribution of weight, and preventing the limit frame 12 and the slide seat 11 from tilting and affecting the horizontal sliding of the square frame 13.

[0033] Please see Figures 1-9 Based on the above embodiments, another embodiment of the present invention further includes an anti-accumulation device 16; The anti-accumulation device 16 includes a reciprocating screw 161, with both ends of the reciprocating screw 161 fixedly installed between two friction wheels 158 on one side close to each other. The outer wall of the reciprocating screw 161 is a non-self-locking reciprocating spiral groove. An L-shaped plate 162 is movably installed through the outer wall of the reciprocating screw 161. The top of the L-shaped plate 162 is slidably installed on the top of the inner wall of the transmission plate 157. A telescopic brush plate 163 is hinged to the top of the inner wall of the L-shaped plate 162 by a torsion spring. The telescopic brush plate 163 has a built-in spring.

[0034] The anti-accumulation device 16 also includes a round rod 164. One end of the round rod 164 near the reciprocating lead screw 161 is fixedly installed on the outer side wall of the square frame 13. A sliding plate 165 is slidably mounted on the outer wall of the round rod 164 through a spring. A pressing block 166 is fixedly installed on one end of the sliding plate 165 near the reciprocating lead screw 161. An arc-shaped block 167 is fixedly installed on the outer side wall of the sliding plate 165. A U-shaped frame 168 is fixedly installed on the side of the L-shaped plate 162 near the arc-shaped block 167.

[0035] The outer wall of the extrusion block 166 contacts the dustproof cloth in the dustproof mechanism 14, and the arc surface of the arc block 167 is located on the top movement trajectory of the U-shaped frame 168.

[0036] According to the above embodiment, the telescopic brush plate 163 cleans the square frame 13 constantly and effectively, ensuring that the square frame 13 remains relatively stable during movement. This prevents the square frame 13 from suddenly increasing in height or generating a biased force on one side, which could cause pulling on the upper and lower ends of the dustproof mechanism 14 and increase the probability of damage to the dustproof mechanism 14. The squeezing block 166 causes the dustproof cloth to fluctuate to a certain extent during the expansion process, allowing the moisture absorbed by the dustproof cloth to quickly dissipate from its interior while shaking off the wetted dust attached to it. This prevents the dust from accumulating due to excessive adhesion, which would weaken the dust suppression effect of the dustproof mechanism 14 and eliminate the need for manual cleaning during use.

[0037] In use, the friction wheel 158 rotates, driving the reciprocating screw 161 to rotate. The reciprocating screw 161, limited by its non-self-locking reciprocating spiral groove on its outer wall, drives the L-shaped plate 162 to slide horizontally along the top of the inner wall of the transmission plate 157 and then reset. This reciprocating motion occurs simultaneously. At the same time, the L-shaped plate 162 drives the telescopic brush plate 163 to move synchronously. The telescopic end of the telescopic brush plate 163 remains firmly in contact with the ground due to spring force. When the telescopic brush plate 163 encounters an obstacle, resistance is generated. At this time, the hinge shaft of the telescopic brush plate 163 begins to rotate, and the telescopic brush plate 163, in an arc-shaped posture, scrapes away the obstacle, preventing it from obstructing movement. When the square frame 13 moves the moving mechanism, it suddenly rises or generates a biased force; at the same time, the L-shaped plate 162 drives the U-shaped frame 168 to move horizontally and reset. When the U-shaped frame 168 moves, it will abut against the arc surface of the arc block 167. At this time, the arc block 167 pushes the sliding plate 165 along the outer wall of the round rod 164 towards the dustproof mechanism 14 through the abutment force. The sliding plate 165 drives the pressing block 166 to move synchronously. The pressing block 166 will abut against the dustproof cloth in the dustproof mechanism 14 and deform. That is, the dustproof cloth in the expansion process will fluctuate to a certain extent, and so on.

[0038] According to the above embodiment, the telescopic brush plate 163 cleans the square frame 13 constantly and effectively, ensuring that the square frame 13 remains relatively stable during movement. This prevents the square frame 13 from suddenly increasing in height or generating a biased force on one side, which could cause pulling on the upper and lower ends of the dustproof mechanism 14 and increase the probability of damage to the dustproof mechanism 14. The squeezing block 166 causes the dustproof cloth to fluctuate to a certain extent during the expansion process, allowing the moisture absorbed by the dustproof cloth to quickly dissipate from its interior while shaking off the wetted dust attached to it. This prevents the dust from accumulating due to excessive adhesion, which would weaken the dust suppression effect of the dustproof mechanism 14 and eliminate the need for manual cleaning during use.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust suppression device for construction excavation, comprising a support frame (1), characterized in that: An electric rotating rod (2) is rotatably installed on the bottom of the inner wall of the support frame (1). A U-shaped plate (3) is fixedly installed on the top of the electric rotating rod (2). Two connecting rods (4) are symmetrically arranged inside the U-shaped plate (3). A spray mechanism (5) is arranged between the two connecting rods (4) on one side close to each other. A transmission rod (6) is arranged inside the spray mechanism (5). Several scraper rods (7) are fixedly installed at equal intervals on the outer wall of the top of the transmission rod (6). A contact plate (8) is movably installed through the outer wall of the reciprocating spiral groove of the electric rotating rod (2). A limit rod (9) is fixedly installed inside the support frame (1). Several trapezoidal frames (10) are equidistantly and slidably installed on the top of the inner wall of the support frame (1) via springs. A sliding seat (11) is provided at the bottom of the support frame (1). A limit frame (12) is fixedly installed inside the sliding seat (11). A square frame (13) is slidably installed inside the limit frame (12) via springs. A dustproof mechanism (14) is fixedly installed on the outer wall of the square frame (13). An immersion device (15) is provided around the sliding seat (11) to ensure that the dustproof mechanism (14) is fully moistened. An anti-accumulation device (16) is provided around the immersion device (15) to prevent excessive dust accumulation.

2. The atmospheric dust suppression device for construction excavation according to claim 1, characterized in that: The outer wall of the electric rotating rod (2) is provided with a non-self-locking reciprocating spiral groove. The U-shaped plate (3) is located at the top of the support frame (1). A servo motor is provided on the outer side wall of the U-shaped plate (3). The connecting rod (4) is fixedly installed at the output end of the servo motor near the side wall of the U-shaped plate (3). The transmission rod (6) is electrically driven. The scraper (7) is in contact with the outer wall of the spray nozzle of the spray mechanism (5).

3. The atmospheric dust suppression device for construction excavation according to claim 2, characterized in that: The contact plate (8) is circular in design. The contact plate (8) is slidably installed inside the limit rod (9) on the outer wall. The outer wall of the contact plate (8) is in contact with the inclined surface of the trapezoidal frame (10). An arc groove is provided at the top edge of the sliding seat (11). The square frame (13) is in contact with the outer wall of the trapezoidal frame (10) on the side close to the support frame (1). A moving mechanism is provided at the bottom of the square frame (13). The dustproof mechanism (14) is composed of a dustproof cloth and several support nodes. The dustproof cloth is redundant when it is not unfolded.

4. The atmospheric dust suppression device for construction excavation according to claim 3, characterized in that: The immersion device (15) includes a symmetrical frame (151), the top of which is fixedly installed at the top edge of the inner wall of the square frame (13). A vertical plate (152) is symmetrically and slidably installed inside the symmetrical frame (151) by means of a spring. An arc rod (153) is fixedly installed inside the arc groove of the slide seat (11). A telescopic water guide plate (154) is rotatably installed on the outer wall of the arc rod (153) by means of a torsion spring. An assist plate (155) is fixedly installed on the top of the telescopic water guide plate (154).

5. The atmospheric dust suppression device for construction excavation according to claim 4, characterized in that: Both ends of the symmetrical frame (151) are hollowed out, the bottom of the vertical plate (152) is curved, the telescopic water guide plate (154) is elastic, the outer wall of the telescopic end of the telescopic water guide plate (154) contacts the side of the dustproof mechanism (14) near the slide seat (11), and the side of the assist plate (155) away from the dustproof mechanism (14) is located on the movement trajectory of the side wall of the vertical plate (152).

6. The atmospheric dust suppression device for construction excavation according to claim 5, characterized in that: An elastic telescopic rod (156) is fixedly installed at the bottom of the symmetrical frame (151). The outer wall of the elastic telescopic rod (156) moves through the bottom of the square frame (13). A transmission plate (157) is fixedly installed at the bottom of the telescopic end of the elastic telescopic rod (156). Two friction wheels (158) are symmetrically and rotatably installed on the transmission plate (157). The friction wheels (158) are in contact with the ground.

7. The atmospheric dust suppression device for construction excavation according to claim 6, characterized in that: The anti-accumulation device (16) includes a reciprocating screw (161), the two ends of which are fixedly installed between two friction wheels (158) on one side close to each other. The outer wall of the reciprocating screw (161) is a non-self-locking reciprocating spiral groove. An L-shaped plate (162) is installed through and movably mounted on the outer wall of the reciprocating screw (161). The top of the L-shaped plate (162) is slidably mounted on the top of the inner wall of the transmission plate (157). A telescopic brush plate (163) is hinged to the top of the inner wall of the L-shaped plate (162) by a torsion spring. The telescopic brush plate (163) has a built-in spring.

8. The atmospheric dust suppression device for construction excavation according to claim 7, characterized in that: The anti-accumulation device (16) also includes a round rod (164), one end of which is fixedly installed on the outer side wall of the square frame (13) near the reciprocating screw (161). A sliding plate (165) is slidably attached to the outer wall of the round rod (164) through a spring. A pressing block (166) is fixedly installed on the end of the sliding plate (165) near the reciprocating screw (161). An arc-shaped block (167) is fixedly installed on the outer side wall of the sliding plate (165). A U-shaped frame (168) is fixedly installed on the side of the L-shaped plate (162) near the arc-shaped block (167).

9. The atmospheric dust suppression device for construction excavation according to claim 8, characterized in that: The outer wall of the extrusion block (166) is in contact with the dustproof cloth in the dustproof mechanism (14), and the arc surface of the arc block (167) is located on the top movement trajectory of the U-shaped frame (168).

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