Flying dust prevention device for municipal public engineering construction

Abstract

The invention belongs to the technical field of municipal engineering, and particularly relates to a municipal public engineering construction dust-proof device which comprises a construction fence and positioning columns. The two sides of the positioning column are connected with construction fences through bolts. A first sliding groove is formed in one side of the positioning column. A pair of rubber plates is fixedly connected to the side wall of the first sliding groove. A three-way water pipe is mounted at the bottom of the positioning rod; the three-way water pipe is communicated with a plurality of groups of water supply pipes; an atomizing nozzle is mounted at the top of the water supply pipe in the first sliding groove; the position of the water supply pipe can be limited by forming the first sliding groove in the side wall of the positioning column, the water supply pipe is kept to run at the reasonable position all the time through the space of the first sliding groove, meanwhile, the tedious operation of mounting and dismounting screws and iron wires is reduced, and the working efficiency in the construction process is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal engineering, in particular to a dust prevention device for municipal public engineering construction. Background Art

[0002] Municipal engineering is a basic construction project in modern society. It can carry out corresponding transformation and construction of infrastructure such as roads, green areas, water sources, etc., thereby increasing the living experience of residents. During the construction of municipal engineering, a certain amount of dust is often generated. In order to protect the environment and reduce the health hazards of dust to construction workers, dust removal devices are used in the process of municipal construction.

[0003] In the current existing technology, the working principle of the dust removal device is basically the same. The air humidity is increased by spraying, so that the dust suspended in the air condenses and falls to the ground, reducing contact with people.

[0004] During use, existing dust removal devices are often temporarily installed on construction fences through devices such as bolts or wires. The installation and disassembly process is relatively cumbersome and prone to shaking, which may cause the spraying equipment to fall and affect the normal use of the equipment. Therefore, a municipal public works construction dust prevention device is proposed to address the above problems. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a municipal public works construction dust prevention device described in the present invention includes a construction fence and a positioning column; the construction fence is bolted to both sides of the positioning column; a No. 1 slide groove is opened on one side of the positioning column; a pair of rubber plates are fixedly connected to the side wall of the No. 1 slide groove; a three-way water pipe is installed at the bottom of the positioning rod; the three-way water pipe is connected to multiple groups of water supply pipes; an atomizing nozzle is installed on the top of the water supply pipe inside the No. 1 slide groove.

[0007] Preferably, both side walls inside the No. 1 slide groove are fixed with multiple groups of positioning rods; the ends of the positioning rods are rotatably connected to the No. 1 rotating shaft; the side walls of the No. 1 rotating shaft are fixed with positioning rings; and a pair of corresponding side walls of the positioning rings are fixed with multiple groups of rubber pads in an alternating manner.

[0008] Preferably, the side walls of the No. 1 slide groove are fixed with connecting plates on both sides of the positioning rod; the ends of the connecting plates are fixed with magnetic blocks; magnets are fixed with magnets at the corresponding positions of the side walls of the positioning ring and the magnetic blocks; and the magnets and the magnetic blocks are magnetically attracted to each other.

[0009] Preferably, a counterweight block is fixedly connected to the bottom of the construction fence; a No. 2 slide groove is opened on the side wall of the counterweight block; an extrusion plate is provided inside the No. 2 slide groove; a bolt is rotated on the top of the No. 2 slide groove, and the bolt is threadedly connected to the top of the counterweight block; a water tank is provided between the counterweight block and the No. 2 slide groove.

[0010] Preferably, a filter box is fixedly connected to the middle of the water storage tank; a water diversion plate is fixedly connected to the side wall of the water storage tank above the filter box, and the top of the water diversion plate is arranged in an inclined surface; the diameter of the filter box is larger than the inner circle of the water diversion plate; a drain pipe is fixedly connected to the side wall of the water storage tank, and the drain pipe is connected to a water pump; a plurality of sets of drainage pipes are fixedly connected to the top side wall of the filter box.

[0011] Preferably, a pressing plate is slidably connected inside the filter box; No. 3 slide grooves are provided at corresponding positions at the bottom of the water storage tank and the filter box; an anti-sliding block is slidably connected inside the No. 3 slide groove; a plurality of groups of triangular protrusions are fixedly connected to the bottom of the anti-sliding block; the top of the anti-sliding block is fixedly connected to the bottom of the pressing plate; a plurality of groups of rubber support rods are installed between the bottom of the pressing plate and the filter box.

[0012] Preferably, the top surface of the water guide plate is arranged in a ring shape with a pair of No. 1 filter plates; and the side wall of the filter box is fixedly connected with a No. 2 filter plate below the leaking pipe.

[0013] Preferably, the top side wall of the positioning column is rotatably connected to a No. 2 rotating shaft; the side wall of the No. 2 rotating shaft is fixedly connected to a top cover; the diameter of the top cover is the same as the diameter of the No. 1 slide slot.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention provides a dust prevention device for municipal public works construction. By opening a No. 1 slide groove on the side wall of the positioning column, the position of the water supply pipe can be restricted. The space of the No. 1 slide groove is used to keep the water supply pipe always in a reasonable position for operation. At the same time, the tedious operations of installing and disassembling screws and wires are reduced, thereby improving the work efficiency during the construction process.

[0016] 2. The present invention provides a dust prevention device for the construction of municipal public works. The water supply pipe is restricted by a circular ring formed by multiple pairs of positioning rings, thereby maintaining the stability of the water supply pipe during water supply, reducing the shaking of the water supply pipe caused by the impact of the water flow, and reducing the water supply pipe from falling off the rubber plate due to vibration and weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a front perspective view of the present invention;

[0019] Figure 2 is a rear perspective view of the present invention;

[0020] Figure 3 is a three-dimensional diagram of a positioning column of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the positioning column of the present invention;

[0022] Figure 5 for Figure 4 A magnified image of point A;

[0023] Figure 6 for Figure 2 A magnified view of point B;

[0024] Figure 7 It is a three-dimensional structural diagram of the water storage tank of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the water storage tank of the present invention.

[0026] Legend:

[0027] 1. Construction fence; 11. Positioning column; 12. No. 1 slide; 13. Rubber sheet; 14. Water supply pipe; 15. Three-way water pipe; 2. Positioning rod; 21. Positioning ring; 22. Rubber pad; 23. No. 1 rotating shaft; 3. Magnetic block; 31. Magnet; 32. Connecting plate; 4. Counterweight; 41. No. 2 slide; 42. Extrusion plate; 43. Water storage tank; 5. Water diversion plate; 51. Filter box; 52. Drain pipe; 53. Leakage pipe; 6. Press plate; 61. No. 3 slide; 62. Anti-sliding block; 7. No. 1 filter plate; 71. No. 2 filter plate; 8. Top cover; 81. No. 2 rotating shaft. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-4As shown, a dust prevention device for municipal public works construction comprises a construction fence 1 and a positioning column 11; the construction fence 1 is bolted on both sides of the positioning column 11; a No. 1 slide groove 12 is provided on one side of the positioning column 11; a pair of rubber plates 13 are fixedly connected to the side wall of the No. 1 slide groove 12; a three-way water pipe 15 is installed at the bottom of the positioning rod 2; the three-way water pipe 15 is connected to multiple groups of water supply pipes 14; an atomizing nozzle is installed on the top of the water supply pipe 14 inside the No. 1 slide groove 12; when working, during the construction of municipal works, dust will be generated due to the influence of mechanical equipment and weather. At this time, dust suppression equipment is needed to suppress the dust to reduce the impact on personnel. At this time, the staff can first check the construction fence 1 and the positioning column 11 before construction. Carry out installation positioning and divide the construction area. At this time, multiple groups of water supply pipes 14 can be installed through the tee at the bottom of the positioning column 11 to confirm the position. At the same time, the staff can place the water pipe equipped with the atomizing nozzle through the rubber plate 13 into the No. 1 slide groove 12 opened on the side wall of the positioning column 11 to limit the position of the water supply pipe 14, so that the atomizing nozzle can spray water smoothly and reduce the dust content in the air. In this step, the position of the water supply pipe 14 can be limited by opening the No. 1 slide groove 12 on the side wall of the positioning column 11, and the space of the No. 1 slide groove 12 can be used to keep the water supply pipe 14 always in a reasonable position for operation, while reducing the tedious operations of installing and disassembling screws and wires, thereby improving work efficiency during construction.

[0030] See also Figure 4-5 As shown, the side walls on both sides of the No. 1 chute 12 are fixedly connected with multiple groups of positioning rods 2; the end of the positioning rod 2 is rotatably connected to the No. 1 rotating shaft 23; the side wall of the No. 1 rotating shaft 23 is fixedly connected with a positioning ring 21; a pair of the positioning rings 21 are fixedly connected with multiple groups of rubber pads 22 in a staggered manner on the corresponding side walls; during work, when the construction workers are installing the water pipe 14, there are some differences in the diameters of the water pipes 14 used in different construction sites. At this time, the positioning rods 2 installed on the inner side walls of the No. 1 chute 12 can be used. With the rotation effect of the No. 1 rotating shaft 23, the positioning ring 21 and the side wall of the water supply pipe 14 are driven to fit together. At the same time, with the friction provided by the rubber pad 22, the stability of the clamping is maintained when there is water flow on the water supply pipe 14. This step uses the circular ring formed by multiple pairs of positioning rings 21 to restrict the water supply pipe 14, maintain the stability of the water supply pipe 14 when water is supplied, reduce the shaking of the water supply pipe 14 caused by the impact of the water flow, and reduce the water supply pipe 14 from falling off from the rubber plate 13 due to vibration and weather reasons.

[0031] See also Figure 4-5As shown, the side walls of the No. 1 slide 12 are fixedly connected with connecting plates 32 on both sides of the positioning rod 2; the ends of the connecting plates 32 are fixedly connected with magnetic blocks 3; the side walls of the positioning ring 21 and the corresponding positions of the magnetic blocks 3 are fixedly connected with magnets 31; the magnets 31 and the magnetic blocks 3 are magnetically attracted to each other; during operation, when the staff installs the water delivery pipe 14, as the staff moves the position of the water delivery pipe 14, the water delivery pipe 14 can smoothly enter between the pair of positioning rings 21, and under the action of the pushing force, the positioning ring 21 will rotate under the action of the No. 1 rotating shaft 23, so that the magnet 31 on one side of the positioning ring 21 is in contact with the magnetic block 3, and under the action of magnetic attraction, the water delivery pipe 14 can be easily moved between the two positioning rings 21. A pair of positioning rings 21 are ordered to remain in a closed state. At the same time, during subsequent disassembly, as the pulling force increases, the positioning ring 21 will be forced to rotate again, so that the magnet 31 on the other side of the positioning ring 21 is in contact with the magnetic block 3. Under the action of the magnetic force, the position of the positioning ring 21 is restricted, and the positioning ring 21 is kept in an open state, which is convenient for the subsequent installation of the water supply pipe 14. In this step, the magnet 31 installed on the side wall of the positioning ring 21 can maintain a magnetic attraction state with the magnetic block 3, so that the positioning ring 21 is in a closed or open state, which increases the fixing effect of the water supply pipe 14 and is convenient for the staff to disassemble and install it, reducing the tedious operation of installing screws and wires.

[0032] See also Figure 2-7 As shown, a counterweight block 4 is fixedly connected to the bottom of the construction fence 1; a No. 2 slide groove 41 is opened on the side wall of the counterweight block 4; an extrusion plate 42 is arranged inside the No. 2 slide groove 41; a bolt is rotated on the top of the No. 2 slide groove 41, and the bolt is threadedly connected to the top of the counterweight block 4; a water tank 43 is arranged between the counterweight block 4 and the No. 2 slide groove 41; when working, during the normal use of the atomizing nozzle on the water supply pipe 14, the staff can install the water tank 43 through the bolts installed on the counterweight block 4, and increase the contact area between the bottom of the construction fence 1 and the positioning column 11 and the ground through the water tank 43, thereby increasing the stability of the construction fence 1 and the positioning column 11. Qualitatively, at the same time, because the spraying direction of the atomizing nozzle is toward the inside of the construction fence 1, the water droplets that have condensed and fallen near the atomizing nozzle can be collected through the water tank 43 to increase the counterweight effect, and the water inside the water tank 43 can be recycled in conjunction with the water pump; this step is carried out by installing the counterweight block 4 at the bottom of the construction fence 1, so that the water tank 43 can be installed to receive the falling water droplets, so that the water content in the water tank 43 gradually increases, which increases its own counterweight, thereby increasing the stability of the construction fence 1 and the positioning column 11, and reducing the collapse of the construction fence 1 and the positioning column 11 caused by weather and vibration conditions.

[0033] See also Figure 7-8As shown, a filter box 51 is fixedly connected to the middle of the water storage tank 43; a water guide plate 5 is fixedly connected to the side wall of the water storage tank 43 above the filter box 51, and the top of the water guide plate 5 is arranged in an inclined surface; the diameter of the filter box 51 is larger than the inner circle of the water guide plate 5; a drainage pipe 52 is fixedly connected to the side wall of the water storage tank 43, and the drainage pipe 52 is connected to a water pump; a plurality of drainage pipes 53 are fixedly connected to the top side wall of the filter box 51; during operation, in the process of collecting the falling water droplets, the falling water droplets will contact the side wall of the water guide plate 5, and gradually slide down under the action of the inclined surface of the water guide plate 5 The water enters the filter box 51 for storage. At this time, the water gradually accumulates inside the filter box 51, causing the liquid level to gradually rise, causing the dust in the water droplets to drop. At the same time, the gradually rising liquid level contacts the leaking pipe 53 and is discharged outward into the gap between the filter box 51 and the water storage tank 43 for storage. This step utilizes the filter box 51 installed inside the water storage tank 43 to precipitate and separate the fallen water, thereby reducing the impurities carried by the water entering the gap between the water storage tank 43 and the filter box 51, facilitating the use and maintenance of the water pump and reducing the occurrence of blockage.

[0034] See also Figure 8 As shown, a pressing plate 6 is slidably connected inside the filter box 51; a No. 3 slide groove 61 is opened at the corresponding positions at the bottom of the water storage tank 43 and the filter box 51; an anti-sliding block 62 is slidably connected inside the No. 3 slide groove 61; a plurality of groups of triangular protrusions are fixedly connected to the bottom of the anti-sliding block 62; the top of the anti-sliding block 62 is fixedly connected to the bottom of the pressing plate 6; a plurality of groups of rubber support rods are installed between the bottom of the pressing plate 6 and the filter box 51; during operation, when moisture gradually accumulates inside the filter box 51, the weight increases with the increase of moisture. At this time, the pressing plate 6 will squeeze the rubber support rod under the action of pressure, causing the pressing plate 6 to displace, driving the anti-sliding block 62 to move downward to the ground and then inserting the bottom protrusion into the soil. This step utilizes the accumulation effect of moisture inside the filter box 51 to further increase the friction between the ground and the anti-sliding block 62, thereby increasing the stability and reducing the sliding and shaking of the construction fence 1 and the positioning column 11.

[0035] See also Figure 8As shown, the top surface of the water guide plate 5 is arranged in a ring-shaped manner with a pair of No. 1 filter plates 7; the side wall of the filter box 51 is located below the leakage pipe 53 and is fixedly connected with a No. 2 filter plate 71; during operation, when the falling water flow contacts the top of the water guide plate 5, the pair of No. 1 filter plates 7 installed on the side wall of the water guide plate 5 can produce a convex effect to filter the downward flowing water, so that the dust in the water flow stays at the angle between the water guide plate 5 and the No. 1 filter plate 7. At the same time, the No. 2 filter plate 71 installed on the side wall of the filter box 51 can reduce the surging of dust caused by the water flow inside the filter box 51. This step utilizes the blocking effect between the No. 1 filter plate 7 and the No. 2 filter plate 71 to further increase the filtering effect of the falling water flow and reduce the accumulation of impurities in the water flow in the filter box 51.

[0036] See also Figure 1-4 As shown, the top side wall of the positioning column 11 is rotatably connected to the second rotating shaft 81; the side wall of the second rotating shaft 81 is fixedly connected to the top cover 8; the diameter of the top cover 8 is the same as the diameter of the No. 1 slide 12; when working, in rainy and snowy weather or in a transporting state, the staff can close the top cover 8 through the rotation effect of the second rotating shaft 81, thereby maintaining the integrity of the positioning column 11, reducing the direct entry of rainwater to cause impurities and the nozzle to contact, causing blockage, and at the same time, during transportation, the nozzle is protected to reduce collisions. This step utilizes the open and closed state of the top cover 8 to protect the atomizing nozzle, reduce external collisions and the entry of impurities, and affect the normal use of the nozzle.

[0037] Working principle: During the construction of municipal engineering, dust will be generated due to the influence of mechanical equipment and weather. At this time, dust suppression equipment is needed to suppress the dust to reduce the impact on personnel. At this time, the staff can install and position the construction fence 1 and the positioning column 11 before construction, and divide the construction area. At this time, multiple groups of water pipes 14 can be installed through the tee at the bottom of the positioning column 11 to confirm the position. At the same time, the staff can place the water pipe equipped with the atomizing nozzle through the rubber plate 13 into the No. 1 opening on the side wall of the positioning column 11. Inside the slide 12, the position of the water supply pipe 14 is restricted so that the atomizing nozzle can spray water smoothly and reduce the dust content in the air. During the installation of the water supply pipe 14 by construction personnel, there are some differences in the diameters of the water supply pipe 14 used in different construction sites. At this time, the positioning rod 2 installed on the inner side wall of the No. 1 slide 12 can cooperate with the rotation effect of the No. 1 rotating shaft 23 to drive the positioning ring 21 and the side wall of the water supply pipe 14 to fit together. At the same time, the friction provided by the rubber pad 22 can maintain the stability of the clamping when there is water flow on the water supply pipe 14.

[0038] During the installation of the water supply pipe 14 by the staff, as the staff moves the position of the water supply pipe 14, the water supply pipe 14 can smoothly enter between the pair of positioning rings 21. Under the action of the pushing force, the positioning ring 21 will rotate under the action of the first rotating shaft 23, so that the magnet 31 on one side of the positioning ring 21 is in contact with the magnetic block 3. Under the action of magnetic attraction, the pair of positioning rings 21 are kept in a closed state. At the same time, during subsequent disassembly, as the pulling force increases, the positioning ring 21 will be forced to rotate again, so that the magnet 31 on the other side of the positioning ring 21 is in contact with the magnetic block 3. Under the action of magnetic force, the position of the positioning ring 21 is restricted, and the positioning ring 21 is kept in an open state, which is convenient for the subsequent installation of the water supply pipe 14. During the normal use of the atomizing nozzle on the water supply pipe 14, the staff can install the water tank 43 through the bolts installed on the counterweight block 4, and increase the contact area between the bottom of the construction fence 1 and the positioning column 11 and the ground through the water tank 43, thereby increasing the construction fence 1 and the positioning column 11. Stability. At the same time, because the spraying direction of the atomizing nozzle is toward the inside of the construction fence 1, the water droplets that have condensed and fallen near the atomizing nozzle can be collected through the water storage tank 43 to increase the counterweight effect. At the same time, the water inside the water storage tank 43 can be recycled in conjunction with the water pump; in the process of collecting the falling water droplets, the falling water droplets will contact the side wall of the water guide plate 5, and gradually slide down into the filter box 51 for storage under the action of the inclined surface of the water guide plate 5. At this time, the water gradually accumulates inside the filter box 51, so that the liquid level gradually rises, and the dust in the water droplets decreases. At the same time, the gradually rising liquid level is discharged outwardly into the gap between the filter box 51 and the water storage tank 43 after contacting the leakage pipe 53 for storage. When the water inside the filter box 51 gradually accumulates, as the water content increases, the weight continues to increase. At this time, the pressing plate 6 will squeeze the rubber support rod under the action of pressure, so that the pressing plate 6 will be displaced, driving the anti-sliding block 62 to move down to the ground and insert the bottom protrusion into the soil.

[0039] When the falling water flow contacts the top of the water guide plate 5, the pair of No. 1 filter plates 7 installed on the side wall of the water guide plate 5 can produce a convex effect to filter the downwardly sliding water flow, so that the dust in the water flow stays at the angle between the water guide plate 5 and the No. 1 filter plate 7. At the same time, the No. 2 filter plate 71 installed on the side wall of the filter box 51 can reduce the surging of dust caused by the water flow inside the filter box 51. When it is in rainy and snowy weather or in a transporting state, the staff can close the top cover 8 through the rotation effect of the No. 2 rotating shaft 81, so as to maintain the integrity of the positioning column 11, reduce the direct entry of rainwater to cause impurities to contact the nozzle, causing blockage, and at the same time, protect the nozzle during transportation to reduce collision.

[0040] The above shows and describes 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, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A dust prevention device for municipal public works construction, comprising a construction enclosure (1) and a positioning column (11); the construction enclosure (1) is bolted to both sides of the positioning column (11); the characteristics are: A No. 1 slide groove (12) is provided on one side of the positioning column (11); a pair of rubber plates (13) are fixedly connected to the side wall of the No. 1 slide groove (12); a three-way water pipe (15) is installed at the bottom of the positioning rod (2); the three-way water pipe (15) is connected to multiple groups of water supply pipes (14); and an atomizing nozzle is installed on the top of the water supply pipe (14) inside the No. 1 slide groove (12).

2. A dust prevention device for municipal public works construction according to claim 1, characterized in that: Multiple groups of positioning rods (2) are fixedly connected to the side walls on both sides of the No. 1 slide groove (12); the end of the positioning rod (2) is rotatably connected to the No. 1 rotating shaft (23); a positioning ring (21) is fixedly connected to the side wall of the No. 1 rotating shaft (23); and a pair of positioning rings (21) are fixedly connected to the corresponding side walls with multiple groups of rubber pads (22) in a staggered manner.

3. A dust prevention device for municipal public works construction according to claim 2, characterized in that: The side walls of the No. 1 slide groove (12) are fixedly connected to connecting plates (32) on both sides of the positioning rod (2); the ends of the connecting plates (32) are fixedly connected to magnetic blocks (3); the side walls of the positioning ring (21) and the magnetic blocks (3) are fixedly connected to magnets (31) at positions corresponding to the magnetic blocks; and the magnets (31) and the magnetic blocks (3) are magnetically attracted to each other.

4. The dust prevention device for municipal public works construction according to claim 1 is characterized by: A counterweight (4) is fixedly connected to the bottom of the construction fence (1); a second slide groove (41) is provided on the side wall of the counterweight (4); an extrusion plate (42) is provided inside the second slide groove (41); a bolt is rotatably provided at the top of the second slide groove (41), and the bolt is threadedly connected to the top of the counterweight (4); a water storage tank (43) is provided between the counterweight (4) and the second slide groove (41).

5. A dust prevention device for municipal public works construction according to claim 4, characterized in that: A filter box (51) is fixedly connected to the middle of the water storage tank (43); a water guide plate (5) is fixedly connected to the side wall of the water storage tank (43) above the filter box (51), and the top of the water guide plate (5) is arranged in an inclined surface; the diameter of the filter box (51) is larger than the inner circle of the water guide plate (5); a drainage pipe (52) is fixedly connected to the side wall of the water storage tank (43), and the drainage pipe (52) is connected to a water pump; and a plurality of groups of drainage pipes (53) are fixedly connected to the top side wall of the filter box (51).

6. A dust prevention device for municipal public works construction according to claim 5, characterized in that: The filter box (51) is slidably connected to a pressing plate (6) inside; corresponding positions of the bottoms of the water storage box (43) and the filter box (51) are provided with a No. 3 slide groove (61); an anti-sliding block (62) is slidably connected inside the No. 3 slide groove (61); a plurality of groups of triangular protrusions are fixedly connected to the bottom of the anti-sliding block (62); a top of the anti-sliding block (62) is fixedly connected to the bottom of the pressing plate (6); and a plurality of groups of rubber support rods are installed between the bottom of the pressing plate (6) and the filter box (51).

7. The dust prevention device for municipal public works construction according to claim 5, characterized in that: The top surface of the water guide plate (5) is provided with a pair of first filter plates (7) arranged in a circular shape; the side wall of the filter box (51) is fixedly connected with a second filter plate (71) below the leaking pipe (53).

8. The dust prevention device for municipal public works construction according to claim 1, characterized in that: The top side wall of the positioning column (11) is rotatably connected to a second rotating shaft (81); the side wall of the second rotating shaft (81) is fixedly connected to a top cover (8); the top cover (8) has the same diameter as the first slide slot (12).

Images