Dust falling device for construction site construction

Abstract

The invention discloses a dust falling device for construction in a construction site, relates to the technical field of spraying dust falling, and solves the problems that a knocked object is protected due to the elasticity of rubber and the contraction absorption force of a rubber block, so that vibration generated by a supporting ring is small, and the supporting ring is installed at the end, away from a second barrel, of a first barrel. The device comprises a cylinder body, an impeller is rotatably installed in the cylinder body, a protective net is fixedly installed in the cylinder body, the protective net is located on the left side of the protective net, and a plurality of atomizing nozzles which are circumferentially distributed at equal intervals are fixedly installed on the portion, located in the cylinder body, of the left side of the protective net; by installing the flushing structure and the liquid squeezing structure, blades of the impeller can be automatically cleaned, the impeller can be driven to rotate reversely by arranging the double-shaft motor, liquid can flow rightwards on the inner wall of the barrel, and therefore the inner wall of the barrel can be automatically flushed.

Description

Technical Field

[0001] The invention relates to the technical field of spray dust reduction, in particular to a construction site dust reduction device. Background Art

[0002] Spray dust suppression is the process of spraying water mist at the dust source to moisten the dust particles, increase their weight, and settle from the air flow. Spray dust suppression is mostly used in rock and mineral loading, transportation, unloading points and construction sites.

[0003] The existing public patent CN118267815A discloses an earthwork dust reduction device in a construction site. By changing the gathering and dispersion state of multiple spray heads, the dust reduction device can achieve close-range and large-area dust reduction, reduce the density of local water mist, and prevent mud from appearing on the ground; and when cleaning the inside of the device, by changing the gathering and dispersion state of multiple spray heads, multiple rubber blocks are knocked on the inner wall of the support ring, thereby vibrating the first cylinder and the second cylinder, so that the dust attached to the inner wall is vibrated and falls off.

[0004] However, during use of the device, due to the elasticity of the rubber, the rubber block shrinks to absorb force, thereby protecting the struck object, so that the vibration generated by the support ring is smaller. In addition, since the support ring is installed at one end of the first cylinder away from the second cylinder, the cleaning effect on the inner walls of the first cylinder and the second cylinder is poor. Summary of the invention

[0005] The object of the present invention is to provide a construction site dust reduction device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A construction site dust suppression device comprises a cylinder, an impeller is rotatably installed inside the cylinder, a protective net is fixedly installed inside the cylinder, and the protective net is located on the left side of the protective net, and the left side of the protective net is located inside the cylinder where a plurality of atomizing nozzles are fixedly installed and distributed equidistantly around the circumference, and also comprises a dual-axis motor installed on the right side of the impeller, drive shafts are fixedly installed at both ends of the dual-axis motor, and the impeller is fixedly connected to the drive shaft located on the left side; a flushing structure for flushing the blades of the impeller, the flushing structure is installed inside the impeller; a liquid squeezing structure for filling water into the inside of the flushing structure, the liquid squeezing structure is installed on the right side of the dual-axis motor; a filtering structure for filtering the gas entering the inside of the filtering structure, the filtering structure is installed at the right end of the cylinder; a driving assembly for connecting the liquid squeezing structure and the filtering structure, the driving assembly is installed between the liquid squeezing structure and the filtering structure.

[0007] Preferably, the flushing structure includes a distribution pipe fixedly embedded in the center of the impeller, a plurality of shunt pipes interconnected with the distribution pipe are installed on the outside of the distribution pipe, a flat-mouth nozzle is fixedly connected to one end of the shunt pipe away from the distribution pipe, and two adjacent flat-mouth nozzles are distributed on both sides of the impeller blades. The flat-mouth nozzle is conducive to expanding the spray range of clean water, and a metal conduit is installed on the left side of the impeller.

[0008] Preferably, the metal conduit passes through the cylinder and is fixedly connected to the cylinder. A rotating joint is installed between the metal conduit and the distribution pipe, and the distribution pipe is rotatably connected to the metal conduit through the rotating joint. The connection between the rotating joint and the impeller is a fixed connection, and the dual-axis motor can drive the impeller to rotate forward and reverse.

[0009] Preferably, the liquid extrusion structure includes a worm rotatably connected to the internal support frame of the cylinder through a bearing, a worm wheel is cooperatedly installed on the upper side of the worm, the rotation of the worm can drive the worm wheel to rotate, and the worm wheel is rotatably connected to the cylinder through a mounting shaft, a capped pin is fixedly embedded on the side of the worm wheel away from the mounting shaft, and the capped pin is away from the center of the worm wheel, and a sleeve frame is movably sleeved on the outer side of the capped pin.

[0010] Preferably, a connecting rod is fixedly embedded in the center of the upper end of the frame, and a piston is fixedly connected to the upper end of the connecting rod. A sleeve is movably sleeved on the outer side of the piston, and the piston can move up and down inside the sleeve. The piston and the inner wall of the sleeve are movably fitted, and the sleeve is fixedly embedded in the upper end of the cylinder body. A plastic conduit is installed on the outer side of the sleeve, and a one-way valve is installed between the metal conduit, the plastic conduit and the sleeve, and the end of the plastic conduit away from the sleeve is located inside the water tank.

[0011] Preferably, a connecting assembly is installed between the driving shaft located on the right side of the dual-axis motor and the worm gear, and the connecting assembly includes a connecting seat fixedly connected to the worm gear, and a plurality of circumferentially equidistantly distributed baffle rods are installed on the outer side of the driving shaft, and the baffle rods are rotatably connected to the driving shaft through a positioning shaft, and a hemispherical portion is provided at one end of the baffle rod away from the driving shaft, and two symmetrically distributed coil springs are fixedly sleeved on the outer side of the positioning shaft, and the coil springs can drive the baffle rod to rotate.

[0012] Preferably, the outer end of the coil spring is fixedly connected to the driving shaft, a folding groove is provided on the outer side of the driving shaft corresponding to the baffle rod, the side of the folding groove close to the baffle rod is a vertical edge, the cross-sectional shape of the baffle rod is circular, a baffle groove is provided inside the connecting seat corresponding to the baffle rod, and the baffle groove is composed of a straight edge portion and an arc edge portion, and the baffle rod is in sliding contact with the connecting seat through a hemispherical portion and the baffle groove.

[0013] Preferably, the filtering structure includes a mounting tube fixedly connected to the cylinder, a drain port is provided at the lower end of the mounting tube, a fixing frame is movably embedded inside the mounting tube, and the fixing frame is located at one end of the mounting tube close to the cylinder, a filter plate is fixedly embedded in the fixing frame, and the filter plate can filter the gas entering the cylinder when the device is used to reduce dust on the construction site, a plurality of limit blocks equidistantly distributed in a circle are fixedly installed on the outer side of the fixing frame, and the limit blocks are in sliding contact with the mounting tube through limit straight grooves.

[0014] Preferably, a spring is fixedly installed on a side of the fixed frame away from the driving assembly, a gasket is fixedly connected to one end of the spring away from the fixed frame, and the gasket is fixedly connected to the mounting tube, the gasket is in a circular ring shape, and the driving assembly includes a connecting ring fixedly connected to the worm gear through a plurality of short rods, and two arc blocks equidistantly distributed around the circumference are fixedly installed on a side of the connecting ring close to the filtering structure.

[0015] Preferably, the arc stopper is provided with a horizontal edge and an arc-shaped edge, a plurality of top rods equidistantly distributed in a circumference are fixedly installed on one side of the fixed frame close to the connecting ring, and a hemispherical portion 2 is provided at one end of the top rod close to the connecting ring, and the hemispherical portion 2 can reduce the friction between the top rod and the arc stopper, and the hemispherical portion 2 of the top rod is in sliding contact with the arc stopper through the arc-shaped edge.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention installs a flushing structure and a squeezing structure. When the dual-axis motor drives the impeller to rotate in the opposite direction, under the action of the piston and the sleeve in the squeezing structure, the flat-mouth nozzle in the flushing structure can spray clean water or detergent to flush both sides of the impeller blades, which is beneficial to automatically clean the impeller blades.

[0017] 2. The present invention can drive the impeller to rotate in the opposite direction by setting a dual-axis motor. During the reverse rotation of the impeller, the liquid used to flush the impeller will be evenly thrown on the inner wall of the cylinder, and at this time, the gas enters the interior through the left end of the cylinder, which is conducive to the liquid flowing to the right on the inner wall of the cylinder, thereby automatically flushing the inner wall of the cylinder.

[0018] 3. The present invention uses a filtering structure and a connecting assembly. During the process of the impeller rotating in the opposite direction for self-cleaning, the arc-shaped block in the connecting assembly drives the filter plate to move back and forth left and right through a plurality of push rods, causing the filter plate to vibrate. On the one hand, it is convenient for the discharge of dirty liquid inside the cylinder, and on the other hand, it is conducive to the vibration of the filter plate for dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side cross-sectional schematic diagram of the cylinder of the present invention; Figure 3 It is a schematic diagram of the overall internal structure of the cylinder of the present invention; Figure 4 Schematic diagram of the connection between the filter structure and the drive assembly of the present invention Figure 5 This is a schematic diagram of the splitting of the liquid squeezing structure of the present invention; Figure 6 It is a side cross-sectional schematic diagram of the connection assembly of the present invention; Figure 7 This is a schematic diagram of the connection between the impeller and the flushing structure of the present invention; Figure 8 For the present invention Figure 7 Schematic side section of .

[0020] In the figure: 1, cylinder; 2, impeller; 3, protective net; 4, atomizing nozzle; 5, flushing structure; 501, distribution pipe; 502, shunt pipe; 503, flat nozzle; 504, metal conduit; 505, rotary joint; 6, liquid squeezing structure; 601, worm; 602, worm wheel; 603, capped pin; 604, sleeve frame; 605, connecting rod; 606, piston; 607, sleeve; 608, plastic conduit; 609, one-way valve; 7, filtering structure; 701. Mounting pipe; 702. Drain port; 703. Fixing frame; 704. Filter plate; 705. Limit block; 706. Spring; 707. Washer; 8. Driving assembly; 801. Connecting ring; 802. Arc stop block; 803. Push rod; 9. Connecting assembly; 901. Connecting seat; 902. Stop rod; 903. Positioning shaft; 904. Coil spring; 905. Folding groove; 906. Stop groove; 10. Dual-axis motor; 11. Driving shaft; 12. Water tank. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1: Please refer to Figure 1-Figure 5 , Figure 7 , Figure 8, a construction site dust reduction device shown in the figure includes a cylinder 1, an impeller 2 is rotatably installed inside the cylinder 1, a protective net 3 is fixedly installed inside the cylinder 1, and the protective net 3 is located on the left side of the protective net 3, and the left side of the protective net 3 is located inside the cylinder 1 and a plurality of atomizing nozzles 4 are fixedly installed and distributed equidistantly in a circle, and also includes a double-axis motor 10 installed on the right side of the impeller 2, a driving shaft 11 is fixedly installed at both ends of the double-axis motor 10, and the impeller 2 is fixedly connected to the driving shaft 11 located on the left side; a flushing structure 5 is used to flush the blades of the impeller 2, and the flushing structure 5 is installed inside the impeller 2; a liquid squeezing structure 6 is used to fill water into the inside of the flushing structure 5, and the liquid squeezing structure 6 is installed on the right side of the double-axis motor 10; a filtering structure 7 is used to filter the gas entering the inside of the filtering structure 7, and the filtering structure 7 is installed at the right end of the cylinder 1; a driving component 8 is used to connect the liquid squeezing structure 6 and the filtering structure 7, and the driving component 8 is installed between the liquid squeezing structure 6 and the filtering structure 7.

[0023] The flushing structure 5 includes a distribution pipe 501 fixedly embedded in the center of the impeller 2, and a plurality of shunt pipes 502 interconnected with the distribution pipe 501 are installed on the outside of the distribution pipe 501. A flat-mouth nozzle 503 is fixedly connected to one end of the shunt pipe 502 away from the distribution pipe 501, and two adjacent flat-mouth nozzles 503 are distributed on both sides of the blades of the impeller 2. The flat-mouth nozzle 503 is conducive to expanding the spray range of clean water. A metal conduit 504 is installed on the left side of the impeller 2.

[0024] The metal conduit 504 passes through the cylinder 1 and is fixedly connected to the cylinder 1. A rotating joint 505 is installed between the metal conduit 504 and the distribution pipe 501, and the distribution pipe 501 is rotatably connected to the metal conduit 504 through the rotating joint 505. The connection between the rotating joint 505 and the impeller 2 is a fixed connection, and the dual-axis motor 10 can drive the impeller 2 to rotate forward and reverse.

[0025] The liquid squeezing structure 6 includes a worm 601 rotatably connected to the internal support frame of the cylinder 1 through a bearing, and a worm wheel 602 is installed on the upper side of the worm 601. The rotation of the worm 601 can drive the worm wheel 602 to rotate, and the worm wheel 602 is rotatably connected to the cylinder 1 through a mounting shaft. A capped pin 603 is fixedly embedded on the side of the worm wheel 602 away from the mounting shaft, and the capped pin 603 is away from the center of the worm wheel 602, and a sleeve frame 604 is movably sleeved on the outer side of the capped pin 603.

[0026] A connecting rod 605 is fixedly embedded at the center of the upper end of the sleeve frame 604, and a piston 606 is fixedly connected to the upper end of the connecting rod 605. A sleeve 607 is movably sleeved on the outer side of the piston 606, and the piston 606 can move up and down inside the sleeve 607. The piston 606 and the inner wall of the sleeve 607 are movably fitted. The sleeve 607 is fixedly embedded in the upper end of the cylinder body 1, and a plastic conduit 608 is installed on the outer side of the sleeve 607, and a one-way valve 609 is installed between the metal conduit 504, the plastic conduit 608 and the sleeve 607. The end of the plastic conduit 608 away from the sleeve 607 is located inside the water tank 12.

[0027] Working principle: When dust is reduced on the construction site, multiple atomizing nozzles 4 spray water mist, and the dual-axis motor 10 drives the impeller 2 to rotate forward. The impeller 2 rotates to blow the water mist toward the construction site, and the water mist absorbs the dust in the air, thereby achieving the purpose of dust reduction on the construction site; When it is necessary to clean the dust inside the cylinder 1, the personnel controls the dual-axis motor 10 to drive the impeller 2 to rotate in the opposite direction. At this time, the gas flow direction inside the cylinder 1 changes, and at the same time, the dual-axis motor 10 drives the worm 601 to rotate through the connecting component 9. The worm 601 rotates to drive the worm wheel 602 to rotate. During the rotation, the worm wheel 602 drives the connecting rod 605 and the piston 606 to reciprocate up and down through the cap pin 603 and the sleeve frame 604. Under the action of the two one-way valves 609, when the piston 606 moves downward inside the sleeve 607, the clean water or cleaning liquid in the water storage tank 12 will be sucked into the sleeve 607. When the piston 606 moves upward inside the sleeve 607, the liquid inside the sleeve 607 will be sprayed out through the flat nozzle 503. The flat nozzle 503 sprays clean water or cleaning liquid on both sides of the blades of the impeller 2. During the rotation of the impeller 2, both sides of the blades of the impeller 2 can be automatically washed. During the high-speed rotation of the impeller 2, the liquid on the blades of the impeller 2 will be brushed toward the side wall of the cylinder 1. Since the gas inside the cylinder 1 flows from left to right at this time, the liquid will flow to the right along the inner wall of the cylinder 1 under the action of wind, thereby flushing the inner wall of the cylinder 1.

[0028] Example 2: Please refer to Figure 3 , Figure 6 , this embodiment further explains Example 1, a connecting component 9 is installed between the driving shaft 11 located on the right side of the dual-axis motor 10 and the worm 601, the connecting component 9 includes a connecting seat 901 fixedly connected to the worm 601, a plurality of circumferentially equidistantly distributed blocking rods 902 are installed on the outer side of the driving shaft 11, and the blocking rod 902 is rotatably connected to the driving shaft 11 through a positioning shaft 903, a hemispherical portion 1 is provided at one end of the blocking rod 902 away from the driving shaft 11, and two symmetrically distributed coil springs 904 are fixedly sleeved on the outer side of the positioning shaft 903, and the coil spring 904 can drive the blocking rod 902 to rotate.

[0029] The outer end of the coil spring 904 is fixedly connected to the driving shaft 11, and a folding groove 905 is provided on the outer side of the driving shaft 11 corresponding to the baffle rod 902. The side of the folding groove 905 close to the baffle rod 902 is a vertical edge, and the cross-sectional shape of the baffle rod 902 is circular. A baffle groove 906 is provided inside the connecting seat 901 corresponding to the baffle rod 902, and the baffle groove 906 is composed of a straight edge portion and an arc edge portion. The baffle rod 902 is in sliding contact with the connecting seat 901 through a hemispherical portion and the baffle groove 906.

[0030] In this embodiment: when the dual-axis motor 10 drives the impeller 2 to rotate forward, the hemispherical portion of the blocking rod 902 contacts the arc edge of the blocking groove 906 during the rotation process, and under the action of the arc edge of the blocking groove 906, the blocking rod 902 will rotate into the folding groove 905, and the connecting seat 901 and the worm 601 will not rotate with the driving shaft 11; When the dual-axis motor 10 drives the impeller 2 to rotate in the opposite direction, the blocking rod 902 will be blocked by the straight edge of the blocking groove 906. Under the action of the blocking groove 906 and the folding groove 905, the blocking rod 902 cannot rotate inside the driving shaft 11. At this time, the rotation of the driving shaft 11 can drive the connecting seat 901 and the worm 601 to rotate through the blocking rod 902.

[0031] Example 3: Please refer to Figure 3 , Figure 4 The present embodiment further explains the first embodiment, the filtering structure 7 comprises a mounting tube 701 fixedly connected to the cylinder body 1, a drain port 702 is provided at the lower end of the mounting tube 701, a fixing frame 703 is movably embedded inside the mounting tube 701, and the fixing frame 703 is located at one end of the mounting tube 701 close to the cylinder body 1, a filter plate 704 is fixedly embedded in the fixing frame 703, the filter plate 704 can filter the gas entering the cylinder body 1 when the device is used for dust reduction at the construction site, a plurality of circumferentially equidistantly distributed limiting blocks 705 are fixedly installed on the outer side of the fixing frame 703, and the limiting blocks 705 are in sliding contact with the mounting tube 701 through limiting straight grooves.

[0032] A spring 706 is fixedly installed on the side of the fixed frame 703 away from the driving assembly 8, and a gasket 707 is fixedly connected to the end of the spring 706 away from the fixed frame 703, and the gasket 707 is fixedly connected to the mounting tube 701. The gasket 707 is in a circular ring shape. The driving assembly 8 includes a connecting ring 801 fixedly connected to the worm 601 through a plurality of short rods, and two arc blocks 802 equidistantly distributed around the circumference are fixedly installed on the side of the connecting ring 801 close to the filtering structure 7.

[0033] The arc stopper 802 is provided with a horizontal edge and an arc edge, and a plurality of circumferentially equidistantly distributed top rods 803 are fixedly installed on one side of the fixed frame 703 close to the connecting ring 801, and a hemispherical portion 2 is provided at one end of the top rod 803 close to the connecting ring 801. The hemispherical portion 2 can reduce the friction between the top rod 803 and the arc stopper 802, and the hemispherical portion 2 of the top rod 803 is in sliding contact with the arc stopper 802 through the arc edge.

[0034] In this embodiment: during the counter-rotation of the impeller 2 and the worm 601, the two arc blocks 802 will rotate together with the worm 601. During the rotation of the arc block 802, the second hemispherical portion of the push rod 803 will slide along the arc edge of the arc block 802. During the sliding of the push rod 803 along the arc edge, the fixed frame 703 and the filter plate 704 will move to the right. At this time, the fixed frame 703 will move to the right side of the discharge port 702. At this time, the liquid inside the cylinder 1 can be discharged through the discharge port 702. When the horizontal edge 802 of the arc block rotates to the push rod 803, driven by the compressed elastic force of the spring 706, the push rod 803 will instantly break away from the arc block 802 and hit the connecting ring 801, and reciprocate in this way, which can cause the fixed frame 703 and the filter plate 704 to vibrate continuously, which is beneficial to vibrate and fall off the dust or liquid attached to the filter plate 704, and facilitate the cleaning of the filter plate 704.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction site dust reduction device, comprising a cylinder (1), an impeller (2) rotatably mounted inside the cylinder (1), a protective net (3) fixedly mounted inside the cylinder (1), and the protective net (3) is located on the left side of the protective net (3), and a plurality of atomizing nozzles (4) equidistantly distributed in a circumference are fixedly mounted on the left side of the protective net (3) inside the cylinder (1), characterized in that: Also includes: A double-shaft motor (10) is installed on the right side of the impeller (2), drive shafts (11) are fixedly installed at both ends of the double-shaft motor (10), and the impeller (2) is fixedly connected to the drive shaft (11) located on the left side; A flushing structure (5) for flushing blades of the impeller (2), the flushing structure (5) being installed inside the impeller (2); A liquid squeezing structure (6) for filling water into the interior of the flushing structure (5), the liquid squeezing structure (6) being installed on the right side of the dual-axis motor (10); A filter structure (7) for filtering gas entering the interior of the filter structure (7), wherein the filter structure (7) is installed at the right end of the cylinder (1); A drive assembly (8) is used to connect the liquid squeezing structure (6) and the filtering structure (7); the drive assembly (8) is installed between the liquid squeezing structure (6) and the filtering structure (7).

2. A construction site dust suppression device according to claim 1, characterized in that: The flushing structure (5) comprises a distribution pipe (501) fixedly embedded in the center of the impeller (2), a plurality of shunt pipes (502) interconnected with the distribution pipe (501) are installed on the outside of the distribution pipe (501), a flat nozzle (503) is fixedly connected to one end of the shunt pipe (502) away from the distribution pipe (501), and two adjacent flat nozzles (503) are distributed on both sides of the impeller (2) blades, and a metal conduit (504) is installed on the left side of the impeller (2).

3. A construction site dust suppression device according to claim 2, characterized in that: The metal conduit (504) passes through the cylinder (1), and the metal conduit (504) is fixedly connected to the cylinder (1); a rotary joint (505) is installed between the metal conduit (504) and the distribution pipe (501), and the distribution pipe (501) is rotatably connected to the metal conduit (504) via the rotary joint (505); and the connection between the rotary joint (505) and the impeller (2) is a fixed connection.

4. A construction site dust suppression device according to claim 3, characterized in that: The liquid squeezing structure (6) comprises a worm (601) rotatably connected to an internal support frame of the cylinder (1) via a bearing, a worm wheel (602) is mounted on the upper side of the worm (601), and the worm wheel (602) is rotatably connected to the cylinder (1) via a mounting shaft, a capped pin (603) is fixedly embedded on a side of the worm wheel (602) away from the mounting shaft, and the capped pin (603) is away from the center of the worm wheel (602), and a sleeve frame (604) is movably sleeved on the outer side of the capped pin (603).

5. A construction site dust suppression device according to claim 4, characterized in that: A connecting rod (605) is fixedly embedded at the center of the upper end of the sleeve frame (604); a piston (606) is fixedly connected to the upper end of the connecting rod (605); a sleeve (607) is movably sleeved on the outer side of the piston (606); and the piston (606) is capable of moving up and down inside the sleeve (607); the sleeve (607) is fixedly embedded in the upper end of the cylinder body (1); a plastic conduit (608) is installed on the outer side of the sleeve (607) and located outside the cylinder body (1); a one-way valve (609) is installed between the metal conduit (504), the plastic conduit (608) and the sleeve (607); and one end of the plastic conduit (608) away from the sleeve (607) is located inside the water storage tank (12).

6. A construction site dust suppression device according to claim 4, characterized in that: A connecting assembly (9) is installed between the drive shaft (11) located on the right side of the dual-axis motor (10) and the worm (601), and the connecting assembly (9) includes a connecting seat (901) fixedly connected to the worm (601), and a plurality of circumferentially equidistantly distributed blocking rods (902) are installed on the outer side of the drive shaft (11), and the blocking rods (902) are rotationally connected to the drive shaft (11) through a positioning shaft (903), and a hemispherical portion is provided at one end of the blocking rod (902) away from the drive shaft (11), and two symmetrically distributed coil springs (904) are fixedly sleeved on the outer side of the positioning shaft (903).

7. A construction site dust suppression device according to claim 6, characterized in that: The outer end of the coil spring (904) is fixedly connected to the drive shaft (11); a folding groove (905) is provided on the outer side of the drive shaft (11) corresponding to the blocking rod (902); the side of the folding groove (905) close to the blocking rod (902) is a vertical side; a blocking groove (906) is provided inside the connecting seat (901) corresponding to the blocking rod (902); the blocking groove (906) is composed of a straight side portion and an arc side portion; the blocking rod (902) is in sliding contact with the connecting seat (901) through a hemispherical portion and the blocking groove (906).

8. A construction site dust suppression device according to claim 1, characterized in that: The filtering structure (7) comprises a mounting tube (701) fixedly connected to the cylinder (1); a liquid discharge port (702) is provided at the lower end of the mounting tube (701); a fixing frame (703) is movably embedded inside the mounting tube (701); the fixing frame (703) is located at one end of the mounting tube (701) close to the cylinder (1); a filter plate (704) is fixedly embedded inside the fixing frame (703); a plurality of circumferentially equidistantly distributed limiting blocks (705) are fixedly installed on the outer side of the fixing frame (703); and the limiting blocks (705) are in sliding contact with the mounting tube (701) via limiting straight grooves.

9. A construction site dust suppression device according to claim 8, characterized in that: A spring (706) is fixedly mounted on a side of the fixing frame (703) away from the driving assembly (8); a gasket (707) is fixedly connected to one end of the spring (706) away from the fixing frame (703); and the gasket (707) is fixedly connected to the mounting tube (701); the driving assembly (8) comprises a connecting ring (801) fixedly connected to the worm (601) via a plurality of short rods; and two circular arc blocks (802) equidistantly distributed around a circumference are fixedly mounted on a side of the connecting ring (801) close to the filtering structure (7).

10. A construction site dust suppression device according to claim 9, characterized in that: The arc stopper (802) is provided with a horizontal edge and an arc-shaped edge, a plurality of push rods (803) equidistantly distributed in a circumference are fixedly mounted on one side of the fixed frame (703) close to the connecting ring (801), and a second hemispherical portion is provided at one end of the push rod (803) close to the connecting ring (801), and the second hemispherical portion of the push rod (803) is in sliding contact with the arc stopper (802) via the arc-shaped edge.

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