Intelligent dustproof device for municipal foundation trench and use method thereof

Abstract

The application belongs to the technical field of dustproof filtration, and discloses an intelligent dustproof device for a municipal foundation trench and a use method, wherein the intelligent dustproof device for the municipal foundation trench comprises a pair of side rails, a plurality of sliding blocks are slidably connected to the top of the pair of side rails, a driving steel wire is fixed to the sliding blocks on one side, a steel wire suspension cable is fixed to the middle of the sliding blocks on both sides, and the installation plate, rotating rod, extrusion rod and other structures are matched, so that the device can be unfolded into a triangular surface support in strong wind, support is provided on both sides of the dustproof mesh screen, the tearing resistance is good, the use durability of the dustproof mesh screen is effectively improved, and after unfolding, the adjacent two rotating rods can be connected by magnetic attraction sub-catches and magnetic attraction female catches. Thus, the two sides of the dustproof mesh screen form a mesh support, the continuous mesh surface clamps the dustproof mesh screen in the middle, effectively improves the wind resistance, and ensures the use continuity and durability of the dustproof mesh screen.

Description

Technical Field

[0001] This invention belongs to the field of dust prevention and filtration technology, specifically an intelligent dust prevention device and its usage method for municipal foundation trenches. Background Technology

[0002] In municipal engineering, a foundation trench typically refers to a strip-shaped excavation pit with a bottom width of less than 3 meters and a length greater than three times its width. It is commonly used for linear projects such as laying underground pipelines and constructing drainage facilities. Because its excavation surface is long and narrow, and it is often located in an urban environment, dust and noise control during construction is particularly important. Using intelligent dust-proof canopies can cover the strip-shaped work surface, effectively suppressing dust spread at the source and reducing the impact on the surrounding environment.

[0003] The prior art document application number CN117717846A discloses an intelligent dust and noise reduction canopy system for air convection in complex environments. The system includes a dustproof net, comprising a horizontally arranged first dustproof net with a second dustproof net connected to both ends. The second dustproof net is vertically arranged. A support beam groove is provided at the connection between the first and second dustproof nets, and a blower is installed on the support beam groove. A vertically arranged first and second support columns are connected to both ends of the support beam groove. A sliding beam groove is fixedly connected to the ends of the first and second support columns away from the support beam groove. Rollers are slidably connected inside the sliding beam groove. This device improves the dust and noise reduction effect; it also accelerates the air exchange and convection between the inside and outside of the foundation pit and effectively solves the problem of dust accumulation on the first and second dustproof nets. This device effectively blows air into the foundation pit and the dustproof net.

[0004] Although the aforementioned devices can clean the dust from the dustproof canopy, the wind resistance of the existing canopies is generally weak. In windy weather, the canopy is prone to swaying and tearing, often requiring it to be retracted and taken out of service, thus failing to provide protection. Furthermore, use in windy conditions can easily lead to a decrease in durability. In addition, the dustproof mesh is difficult to remove for cleaning or replacement in scenarios where it has been conventionally reinforced, resulting in maintenance trouble. Summary of the Invention

[0005] To address the problem mentioned in the background art that current canopies generally have weak wind resistance, are prone to swaying in strong winds, and pose a risk of tearing, this invention provides an intelligent dustproof device for municipal foundation trenches and its usage method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent dustproof device for municipal foundation trenches, comprising a pair of side rails, each pair of side rails having several sliders slidably connected to its top, each slider on one side being fixedly connected to a driving steel wire, and a steel wire suspension cable being fixedly connected to the middle of each slider on both sides, with the top of the steel wire suspension cables abutting against a dustproof mesh net; further comprising: a double-sided support mechanism, the double-sided support mechanism being evenly distributed on the dustproof mesh net; and an edge clamping mechanism, the edge clamping mechanism being connected to the double-sided support mechanism;

[0007] The double-sided support mechanism and the edge clamping mechanism are provided in a certain number. The double-sided support mechanism includes a number of positioning blocks that are equidistantly fixed to the steel wire suspension cable. The dustproof mesh is sleeved on the positioning block through the mesh holes. Mounting plates are provided on both sides of the positioning block. The upper mounting plate is rotatably connected to the upper end of the positioning block through a rotating shaft, and the lower mounting plate is fixed to the lower end of the positioning block.

[0008] Preferably, the double-sided support mechanism further includes a pair of rotating rods rotatably connected to both sides of the mounting plate. The ends of the rotating rods are rotatably connected to the ends of the mounting plate via support rods. Each rotating rod is rotatably connected to a pressing rod on the side near the positioning block. The ends of the pair of pressing rods are rotatably connected to an L-shaped sliding plate.

[0009] Preferably, each of the rotating rods has a sliding groove at its end away from the positioning block. The ends of a pair of rotating rods are slidably connected to a magnetic clasp and a magnetic clasp through the sliding groove. The magnetic clasp and the magnetic clasp are magnetically connected to each other. A main flexible tube is fixedly connected to the bottom of multiple positioning blocks. Several secondary rigid tubes are fixedly connected to the side wall of the main flexible tube. All secondary rigid tubes are fixedly connected to the positioning blocks.

[0010] Preferably, the auxiliary rigid tube is fixedly connected to a straight sleeve through a second branch tube. The outer wall of the straight sleeve is fixed to the inner cavity of the mounting plate. A straight push rod is slidably connected to the inner cavity of the straight sleeve. The end of the straight push rod is fixed to the L-shaped slide plate of the extrusion rod.

[0011] Preferably, the side wall of the secondary rigid tube is fixedly connected to a first branch tube, the end of the first branch tube is rotatably connected to the center of the rotating shaft, the inner cavity of the rotating shaft is fixedly connected to an arc-shaped sleeve, the end of the arc-shaped sleeve is connected to the first branch tube, the inner cavity of the arc-shaped sleeve is slidably connected to an arc-shaped push rod, and the end of the arc-shaped push rod is fixedly connected to a pawl.

[0012] Preferably, the pawl is rotatably connected to the inner cavity of the rotating shaft, and the side wall of the pawl is elastically connected to the rotating shaft. The top inner cavity of the positioning block is provided with several ratchet grooves, and the pawl is engaged in the ratchet grooves.

[0013] Preferably, the edge clamping mechanism includes a windproof clamp that is slidably sleeved on the edge of the steel wire suspension cable. The top of the windproof clamp is fixed to the edge of the dustproof mesh net by a short rope. An anti-slip plate is fixed to the inner side wall of the side rail, and the anti-slip plate and the windproof clamp are arranged on the same axis. A limit plate is also fixed to the side wall of the side rail. Several positioning bolts are slidably connected to the upper side of the limit plate, and all the positioning bolts are fixed to the slider.

[0014] Preferably, a sliding rod is fixedly connected to the side wall of the windproof clamp, the sliding rod is slidably connected to the upper side of the steel wire suspension cable, a lower rack is fixedly connected to the side of the sliding rod away from the windproof clamp, a gear is meshed on the outer wall of the lower rack, the gear is rotatably connected to a U-shaped plate, and the U-shaped plate is fixedly connected to the steel wire suspension cable.

[0015] Preferably, a connecting plate is rotatably connected to the end of the support rod, and a sliding block is fixedly connected to the connecting plate. The sliding block is sleeved on the outer wall of the steel wire suspension cable, and an upper rack is fixedly connected to the inner surface of the top of the sliding block. The teeth of the upper rack are adapted to the teeth of the gear.

[0016] This application also proposes a method for using an intelligent dustproof device for municipal foundation trenches, the method of which is as follows:

[0017] S1. Construction preparation and surveying: Clean and level the construction site, measure and mark the center lines and installation positions of the support columns and side rail structural components;

[0018] S2. Canopy Foundation and Structure Installation: Concrete foundation construction is carried out, and counterweights can be used to stabilize the foundation. Then, the support frame, slider, and side rails are installed, and the suspension system is erected. Pre-tension is applied to the steel wire suspension cables to ensure structural tension.

[0019] S3. Installation of the canopy and control system: Install the dustproof mesh, i.e., the canopy, on the predetermined steel wire suspension cable through the double-sided support mechanism. At the same time, install the electric winch, drive steel wire, control box, sensor and edge clamping mechanism.

[0020] S4. System Debugging: Debug the opening and closing stroke of the canopy to ensure smooth and accurate operation, and link the canopy control with the on-site sprinkler dust suppression and lighting systems.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] This invention, through the combination of a mounting plate, rotating rods, and pressing rods, facilitates the device's deployment into a triangular support structure during strong winds. This provides support on both sides of the dustproof mesh, offering excellent tear resistance and effectively enhancing the durability of the dustproof mesh. Furthermore, after deployment, adjacent rotating rods can be magnetically connected via magnetic snap fasteners, thus forming a mesh support on both sides of the dustproof mesh. The continuous mesh surface holds the dustproof mesh in the middle, effectively improving its wind resistance, reducing the possibility of tearing, and ensuring the continuity and durability of the dustproof mesh.

[0023] This invention facilitates the locking and unlocking of the upper mounting plate by using a combination of arc-shaped push rods, arc-shaped sleeves, and pawls. When disassembling the dustproof mesh, the plate is unlocked, and workers can grasp it from both sides and move it upwards. At this time, the upper mounting plate is moved to a vertical position by the dustproof mesh. Locking the pawl at this point ensures that the entire upper mounting plate is in a vertical position. When installing a new dustproof mesh, simply align the mesh openings with the end support rods, pass it through the mounting plate, and finally slip it over the positioning block. Then, release the pawl again to change the mounting plate from vertical to horizontal, clamping the dustproof mesh with the steel wire suspension cable. Locking is then completed by the pawl, enabling quick replacement of the dustproof mesh and facilitating cleaning and maintenance.

[0024] This invention, through the coordination of structures such as support rods, sliding rods, and windproof clamps, facilitates the automatic clamping of the anti-slip plate by the windproof clamps. During the deployment of the double-sided support mechanism, the support rods unfold, and the connecting plate at the end of the support rods can drive the sliding block and the upper rack to move axially in the direction of the mounting plate. Under the meshing action of the gears and the lower rack, the sliding rods push the windproof clamps to move in the opposite direction. Finally, under the squeezing force of the windproof clamps, the anti-slip plate is automatically clamped, holding the edge of the dustproof mesh onto the side rail, further enhancing the wind resistance effect and improving the wind resistance of the edge of the canopy formed by the dustproof mesh, preventing it from being overturned from the edge. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 For the present invention Figure 1 A magnified view of the structure at point A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of the present invention from a bottom view;

[0028] Figure 4 This is a side view of the structure of the present invention;

[0029] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point B in the middle;

[0030] Figure 6 This is a schematic diagram of the device of the present invention in its folded state.

[0031] Figure 7 This is a schematic diagram of the unfolded state of the device of the present invention;

[0032] Figure 8 This is a schematic diagram of the unfolded side view structure of the present invention;

[0033] Figure 9 This is a schematic diagram of the retractable side structure of the present invention;

[0034] Figure 10 For the present invention Figure 9 A magnified schematic diagram of the structure at point C in the middle;

[0035] Figure 11 This is a schematic diagram showing the structural fit between the positioning block and the mounting plate of the present invention;

[0036] Figure 12 For the present invention Figure 11 A magnified schematic diagram of the structure at point D in the middle;

[0037] Figure 13 This is a schematic diagram showing the structural fit between the windproof clip and the steel wire suspension cable of the present invention;

[0038] Figure 14 This is a schematic diagram showing the structural fit between the slide bar and the steel wire suspension cable of the present invention;

[0039] Figure 15 This is a schematic diagram showing the structural fit between the slide bar and the windproof clamp of the present invention;

[0040] Figure 16 This is a partial structural diagram of the present invention.

[0041] In the picture:

[0042] 1. Side rail; 2. Slider; 3. Drive wire; 4. Dustproof mesh; 5. Double-sided support mechanism; 501. Positioning block; 502. Mounting plate; 503. Rotating rod; 504. Support rod; 505. Pressing rod; 506. Magnetic fastener; 507. Magnetic nut; 508. Main flexible hose; 509. Secondary rigid hose; 5010. First branch pipe; 5011. Second branch pipe; 5012. Straight push rod; 5013. Straight... 5014. Sleeve; 5015. Rotating shaft; 5016. Pawl; 5017. Arc-shaped push rod; 5018. Arc-shaped sleeve; 5019. Racket groove; 6. Edge clamping mechanism; 601. Limiting plate; 602. Windproof clamp; 603. Slide rod; 604. Positioning bolt; 605. Anti-slip plate; 606. Sliding block; 607. Upper rack; 608. Lower rack; 609. U-shaped plate; 6010. Gear; 7. Steel wire suspension cable. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] like Figures 1 to 13 As shown, the present invention provides an intelligent dustproof device for municipal foundation trenches, including a pair of side rails 1, with a plurality of sliders 2 slidably connected to the top of each pair of side rails 1, a driving steel wire 3 fixedly connected to each side slider 2, a steel wire suspension cable 7 fixedly connected to the middle of each side slider 2, and a dustproof mesh net 4 abutting the top of the plurality of steel wire suspension cables 7. It also includes: a double-sided support mechanism 5, which is evenly distributed on the dustproof mesh net 4; and an edge clamping mechanism 6, which is connected to the double-sided support mechanism 5.

[0045] The double-sided support mechanism 5 and the edge clamping mechanism 6 are provided in several quantities. The double-sided support mechanism 5 includes several positioning blocks 501 that are equidistantly fixed to the steel wire suspension cable 7. The dustproof mesh 4 is sleeved on the positioning block 501 through the mesh. The positioning block 501 is provided with mounting plates 502 on both sides. The upper mounting plate 502 is rotatably connected to the upper end of the positioning block 501 through the rotating shaft 5014, and the lower mounting plate 502 is fixed to the lower end of the positioning block 501.

[0046] Using the above scheme: In the absence of wind and low wind conditions, the double-sided support structure 5 is... Figure 6 The retracted state shown allows the dustproof mesh 4 to be easily expanded or folded by driving the slider 2 and the wire suspension cable 7 via the drive wire 3, serving as a canopy above the municipal foundation pit to effectively suppress dust dispersion. Furthermore, the mounting plate 502 clamps the dustproof mesh 4 on both sides, increasing the connection surface between the dustproof mesh 4 and the wire suspension cable 7, making it more robust than traditional point-based connections.

[0047] like Figures 2 to 8As shown, the double-sided support mechanism 5 also includes a pair of rotating rods 503 rotatably connected to both sides of the mounting plate 502. The ends of the rotating rods 503 are rotatably connected to the ends of the mounting plate 502 via support rods 504. The side of the rotating rods 503 closest to the positioning block 501 is rotatably connected to a pressing rod 505. The ends of the pair of pressing rods 505 are rotatably connected to an L-shaped sliding plate. The ends of the rotating rods 503 furthest from the positioning block 501 are provided with sliding grooves. The ends of the pair of rotating rods 503 are slidably connected to a magnetic snap fastener 506 and a magnetic snap fastener 507 via the sliding grooves. The magnetic snap fastener 506 and the magnetic snap fastener 507 are magnetically connected to each other. The bottom of multiple positioning blocks 501 is fixedly connected to a main flexible hose 508. The side wall of the main flexible hose 508 is fixedly connected to several secondary rigid pipes 509.

[0048] like Figure 3 , Figures 9 to 11 As shown, the secondary rigid tubes 509 are all fixedly connected to the positioning block 501; the secondary rigid tubes 509 are fixedly connected to the straight sleeve 5013 through the second branch tube 5011, the outer wall of the straight sleeve 5013 is fixedly connected to the inner cavity of the mounting plate 502, the inner cavity of the straight sleeve 5013 is slidably connected to the straight push rod 5012, and the end of the straight push rod 5012 is fixedly connected to the L-shaped slide plate of the extrusion rod 505; the side wall of the secondary rigid tube 509 is fixedly connected to the first branch tube 5010, and the end of the first branch tube 5010 is rotatably connected to the center of the rotating shaft 5014. An arc-shaped sleeve 5017 is fixedly connected to the inner cavity of 5014. The end of the arc-shaped sleeve 5017 is connected to the first branch pipe 5010. An arc-shaped push rod 5016 is slidably connected to the inner cavity of the arc-shaped sleeve 5017. A pawl 5015 is fixedly connected to the end of the arc-shaped push rod 5016. The pawl 5015 is rotatably connected to the inner cavity of the rotating shaft 5014, and the side wall of the pawl 5015 is elastically connected to the rotating shaft 5014. Several ratchet grooves 5018 are opened in the top inner cavity of the positioning block 501, and the pawl 5015 is engaged in the ratchet grooves 5018.

[0049] The above scheme employs the following: valves are installed on the main flexible hose 508, the secondary rigid hose 509, the first branch pipe 5010, and the second branch pipe 5011, and these valves are electrically connected to the intelligent control system for operation by the system control device. The axes of the arc-shaped push rod 5016 and the arc-shaped sleeve 5017 coincide with the rotation axis of the pawl 5015, facilitating the accurate rotation of the pawl 5015 by the rotational movement of the arc-shaped push rod 5016, thereby compressing the spring and causing the pawl 5015 to retract into the rotating shaft 5014, releasing the lock and facilitating the removal of the dustproof mesh 4 for cleaning and maintenance.

[0050] like Figures 3 to 5 , Figure 12 , Figure 13As shown, the edge clamping mechanism 6 includes a windproof clamp 602 that is slidably sleeved on the edge of the steel wire suspension cable 7. The top of the windproof clamp 602 is fixed to the edge of the dustproof mesh 4 by a short rope. An anti-slip plate 605 is fixed to the inner side wall of the side rail 1, and the anti-slip plate 605 and the windproof clamp 602 are arranged on the same axis. A limit plate 601 is also fixed to the side wall of the side rail 1. Several positioning bolts 604 are slidably connected to the upper side of the limit plate 601, and the positioning bolts 604 are all fixed to the slider 2. A sliding rod 603 is fixed to the side wall of the windproof clamp 602, and the sliding rod 603 is slidably connected to the steel wire. On the upper side of the suspension cable 7, a lower rack 608 is fixedly connected to the side of the slide rod 603 away from the windproof clamp 602. A gear 6010 meshes with the outer wall of the lower rack 608. A U-shaped plate 609 is rotatably connected to the gear 6010. The U-shaped plate 609 is fixedly connected to the steel wire suspension cable 7. A connecting plate is rotatably connected to the end of the support rod 504, and a sliding block 606 is fixedly connected to it through the connecting plate. The sliding block 606 is sleeved on the outer wall of the steel wire suspension cable 7. An upper rack 607 is fixedly connected to the inner surface of the top of the sliding block 606. The teeth of the upper rack 607 are matched with the teeth of the gear 6010.

[0051] The above scheme employs a method where the clamping surface of the windproof clamp 602 is equipped with a rubber pad. Under pushing force, it automatically clamps the outer wall of the anti-slip plate 605, and during resetting, the pulling force causes the windproof clamp 602 to automatically disengage from the anti-slip plate 605. During the process of the rotating rod 503 unfolding and simultaneously unfolding the support rod 504, the connecting plate at the end of the support rod 504 drives the sliding block 606 to move axially toward the mounting plate 502, and the upper rack 607 at the top of the sliding block 606 moves axially accordingly. When the upper rack 607 reaches the position of the gear 6010, they mesh. Since the position of the gear 6010 remains unchanged, the upper rack 607 moves axially toward the mounting plate 502, and the lower rack 608 moves in the opposite direction through the gear 6010. That is, the lower rack 608 drives the sliding rod 603 to move toward the anti-slip plate 605. The windproof clip 602 is pushed by the slide bar 603 to move towards the anti-slip plate 605. Under the pressure, the windproof clip 602 automatically clamps the anti-slip plate 605, clamping the edge of the dustproof mesh 4 onto the side rail 1 to prevent the dustproof mesh 4 from being blown over by the wind.

[0052] This application also proposes a method for using an intelligent dustproof device for municipal foundation trenches, the method of which is as follows:

[0053] S1. Construction preparation and surveying: Clean and level the construction site, measure and mark the center line and installation position of the support column and side rail 1 structural component;

[0054] S2. Canopy Foundation and Structure Installation: Concrete foundation construction is carried out, and counterweights can be used to stabilize the foundation. Then, the support frame, slider 2, and side rail 1 are installed, and the suspension system is erected. Pre-tension is applied to the steel wire suspension cable 7 to ensure the structure is tensioned.

[0055] S3. Installation of the canopy and control system: Install the dustproof mesh 4, i.e. the canopy, on the predetermined steel wire suspension cable 7 through the double-sided support mechanism 5. At the same time, install the electric winch, drive steel wire 3, control box, sensor and edge clamping mechanism 6.

[0056] S4. System Debugging: Debug the opening and closing stroke of the canopy to ensure smooth and accurate operation, and link the canopy control with the on-site sprinkler dust suppression and lighting systems.

[0057] Working principle and usage process of this invention:

[0058] First, in calm or low-level wind conditions, the double-sided support structure 5 is... Figure 6 The retracted state shown allows the dustproof mesh 4 to be easily expanded or folded by driving the slider 2 and the wire suspension cable 7 via the drive wire 3, serving as a canopy above the municipal foundation pit to effectively suppress dust dispersion. At this time, the mounting plate 502 clamps the dustproof mesh 4 on both sides, increasing the connection surface between the dustproof mesh 4 and the wire suspension cable 7, making it more robust than traditional point connections and improving its resistance to detachment or tearing. When the wind force is high, the linear clamping between the wire suspension cable 7 and the dustproof mesh 4 alone is insufficient. In this case, the electronic valves of the main hose 508 and the second branch pipe 5011 are opened, injecting liquid into the main hose 508 and the auxiliary rigid pipe 509 through an externally connected bidirectional water pump. The liquid connects to the straight sleeve 5013 through the second branch pipe 5011. The liquid injection into the straight sleeve 5013 pushes the straight push rod 5012 towards the extrusion rod 505. Through the rotation of the extrusion rod 505, the connection is achieved... Figure 14 As shown, a pair of compression rods 505 are opened relative to each other, thereby squeezing and pushing a pair of rotating rods 503 to rotate and open outwards. When the rotating rods 503 open outwards, they simultaneously drive the end support rods 504 to open for support, ultimately forming a triangular planar support, as shown. Figure 7 As shown, the middle part is still linearly clamped by the mounting plate 502. Furthermore, after unfolding, adjacent rotating rods 503 can be magnetically connected to each other via magnetic hooks 506 and magnetic nut 507, thus forming a mesh support on both sides of the dustproof mesh 4, clamping the dustproof mesh 4 in the middle, effectively improving its wind resistance, reducing the possibility of tearing, and ensuring the continuity and durability of the dustproof mesh 4. In addition, when the device needs to be reset, simply extract the injected liquid through the external bidirectional water pump and the main hose 508, reverse the above-mentioned linkage, and release the magnetic hooks 506 and magnetic nut 507 to allow the rotating rods 503 to retract. During the unfolding and retraction of the device, the valve of the first branch pipe 5010 remains closed, without affecting each other.

[0059] It is worth noting that the control of the bidirectional water pump and the electronic valve are both existing mature technologies, and will not be described in detail here.

[0060] When cleaning and maintenance of the dustproof mesh 4 is required, it is more convenient to remove the dustproof mesh 4 for operation. Liquid is injected again into the auxiliary rigid pipe 509 through the main hose 508. Then, the electronic valve of the first branch pipe 5010 is opened and the electronic valve of the second branch pipe 5011 is closed, injecting liquid into the center of rotation of the rotating shaft 5014, and continuing to inject into the arc-shaped sleeve 5017. This pushes the arc-shaped push rod 5016, causing it to rotate around the axis of rotation of the pawl 5015. This compresses the spring of the pawl 5015, which then retracts into the rotating shaft 5014 to release the lock. At this point, the operator only needs to lift the dustproof mesh 4 upwards. Since the upper mounting plate 502 is folded and can move freely, the dustproof mesh 4 can be separated from the positioning block 501. When installing the new dustproof mesh 4, the winch drives the drive wire 3 to bring the slider 2 closer and retract it, bringing the wire suspension cable 7 to the edge of the pit. Then, the new dustproof mesh 4 is unfolded. Simply align the mesh with the end support rod 504, pass it through the mounting plate 502, and finally put it on the outside of the positioning block 501. In this way, the curtain is installed layer by layer at the edge of the pit. Then, the pawl 5015 is released again, so that the mounting plate 502 changes from vertical to horizontal, clamping the dustproof mesh 4 with the wire suspension cable 7. Then, the pawl 5015 is used to lock it, which can realize the quick replacement of the dustproof mesh 4.

[0061] Furthermore, it can further prevent the dustproof mesh 4 from being blown off its edges by the wind during strong winds. Specifically, during the process of the rotating rod 503 unfolding and driving the support rod 504 to unfold synchronously, the connecting plate at the end of the support rod 504 can drive the sliding block 606 to move axially towards the mounting plate 502, and the upper rack 607 at the top of the sliding block 606 moves axially accordingly. When the upper rack 607 reaches the position of the gear 6010, they mesh with each other. Since the position of the gear 6010 remains unchanged, the upper rack 607 moves axially towards the mounting plate 502, and the lower rack 608 moves in the opposite direction through the gear 6010. That is, the lower rack 608 drives the sliding rod 603 to move towards the anti-slip plate 605. The sliding rod 603 pushes the windproof clamp 602 to also move towards the anti-slip plate 605, so that under the extrusion pressure, the windproof clamp 602 automatically clamps the anti-slip plate 605, clamping the edge of the dustproof mesh 4 onto the side rail 1, further enhancing the wind resistance effect. Then, in conjunction with the reset of the support rod 504, the windproof clip 602 is moved in the opposite direction to reset, and the rubber pad of the windproof clip 602 is disengaged from the anti-slip plate 605 by the pulling force, so that it can be used next time.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart dustproof device for municipal foundation trenches, comprising a pair of side rails (1), wherein a plurality of sliders (2) are slidably connected to the top of each pair of side rails (1), a driving steel wire (3) is fixedly connected to each of the sliders (2) on one side, and a steel wire suspension cable (7) is fixedly connected to the middle of each of the sliders (2) on both sides, and a dustproof mesh net (4) is abutted against the top of the steel wire suspension cable (7), characterized in that: Also includes: Double-sided support mechanism (5), which is evenly distributed on the dustproof mesh net (4); An edge clamping mechanism (6) is connected to a double-sided support mechanism (5); The double-sided support mechanism (5) and the edge clamping mechanism (6) are provided in a certain number. The double-sided support mechanism (5) includes a number of positioning blocks (501) that are equidistantly fixed to the steel wire suspension cable (7). The dustproof mesh (4) is sleeved on the positioning block (501) through the mesh. The positioning block (501) is provided with mounting plates (502) on both sides. The upper mounting plate (502) is rotatably connected to the upper end of the positioning block (501) through the rotating shaft (5014). The lower mounting plate (502) is fixed to the lower end of the positioning block (501). The double-sided support mechanism (5) further includes a pair of rotating rods (503) rotatably connected to both sides of the mounting plate (502). The ends of the rotating rods (503) are rotatably connected to the ends of the mounting plate (502) through support rods (504). The side of the rotating rods (503) closest to the positioning block (501) is rotatably connected to a pressing rod (505). The ends of the pair of pressing rods (505) are rotatably connected to an L-shaped sliding plate. The ends of the rotating rods (503) away from the positioning blocks (501) are provided with sliding grooves. The ends of a pair of rotating rods (503) are respectively slidably connected to magnetic snap fasteners (506) and magnetic snap fasteners (507) through the sliding grooves. The magnetic snap fasteners (506) and magnetic snap fasteners (507) are magnetically connected to each other. The bottoms of multiple positioning blocks (501) are fixedly connected to a main hose (508). The sidewall of the main hose (508) is fixedly connected to several secondary hard tubes (509). The secondary hard tubes (509) are all fixedly connected to the positioning blocks (501). The secondary rigid tube (509) is fixedly connected to a straight sleeve (5013) through a second branch tube (5011). The outer wall of the straight sleeve (5013) is fixed to the inner cavity of the mounting plate (502). A straight push rod (5012) is slidably connected to the inner cavity of the straight sleeve (5013). The end of the straight push rod (5012) is fixed to the L-shaped slide plate of the extrusion rod (505). The side wall of the secondary rigid tube (509) is fixedly connected to a first branch tube (5010). The end of the first branch tube (5010) is rotatably connected to the center of the rotating shaft (5014). An arc-shaped sleeve (5017) is fixedly connected to the inner cavity of the rotating shaft (5014). The end of the arc-shaped sleeve (5017) is connected to the first branch tube (5010). An arc-shaped push rod (5016) is slidably connected to the inner cavity of the arc-shaped sleeve (5017). A pawl (5015) is fixedly connected to the end of the arc-shaped push rod (5016).

2. The intelligent dustproof device for municipal foundation trenches according to claim 1, characterized in that: The pawl (5015) is rotatably connected to the inner cavity of the rotating shaft (5014), and the side wall of the pawl (5015) is elastically connected to the rotating shaft (5014). The top inner cavity of the positioning block (501) is provided with several ratchet grooves (5018), and the pawl (5015) is engaged in the ratchet grooves (5018).

3. The intelligent dustproof device for municipal foundation trenches according to claim 1, characterized in that: The edge clamping mechanism (6) includes a windproof clamp (602) that is slidably sleeved on the edge of the steel wire suspension cable (7). The top of the windproof clamp (602) is fixed to the edge of the dustproof mesh net (4) by a short rope. The inner side wall of the side rail (1) is fixed with an anti-slip plate (605), and the anti-slip plate (605) and the windproof clamp (602) are set on the same axis. The side wall of the side rail (1) is also fixed with a limiting plate (601). Several positioning bolts (604) are slidably connected to the upper side of the limiting plate (601). The positioning bolts (604) are all fixed to the slider (2).

4. The intelligent dustproof device for municipal foundation trenches according to claim 3, characterized in that: A slide rod (603) is fixedly connected to the side wall of the windproof clamp (602). The slide rod (603) is slidably connected to the upper side of the steel wire suspension cable (7). A lower rack (608) is fixedly connected to the side of the slide rod (603) away from the windproof clamp (602). A gear (6010) meshes with the outer wall of the lower rack (608). A U-shaped plate (609) is rotatably connected to the gear (6010). The U-shaped plate (609) is fixedly connected to the steel wire suspension cable (7).

5. The intelligent dustproof device for municipal foundation trenches according to claim 4, characterized in that: The end of the support rod (504) is rotatably connected to a connecting plate, and a sliding block (606) is fixedly connected to the connecting plate. The sliding block (606) is sleeved on the outer wall of the steel wire suspension cable (7). An upper rack (607) is fixedly connected to the inner surface of the top of the sliding block (606). The teeth of the upper rack (607) are matched with the teeth of the gear (6010).

6. A method for using an intelligent dust control device for municipal foundation trenches, applicable to the intelligent dust control device for municipal foundation trenches as described in claim 1, characterized in that: The usage method is as follows: S1. Construction preparation and surveying: Clean and level the construction site, measure and mark the center line and installation position of the support column and side rail (1) structural components; S2, Installation of the canopy foundation and structure: Concrete foundation construction is carried out, and counterweights can be used to stabilize the foundation. Then, the support frame, slider (2), and side rail (1) are installed, and the suspension system is erected. Pre-tension is applied to the steel wire suspension cable (7) to ensure the structure is tensioned. S3. Installation of the canopy and control system: The dustproof mesh (4), i.e. the canopy, is installed on the predetermined steel wire suspension cable (7) through the double-sided support mechanism (5). At the same time, the electric winch, drive steel wire (3), control box, sensor and edge clamping mechanism (6) are installed. S4. System Debugging: Debug the opening and closing stroke of the canopy to ensure smooth and accurate operation, and link the canopy control with the on-site sprinkler dust suppression and lighting systems.

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