Dustproof cleaning device and dustproof cleaning method for engineering project site

Abstract

The application discloses an engineering project site dustproof cleaning device, which comprises a frame body and a dust collecting cylinder installed on the frame body. The dust collecting cylinder is rotatably installed on the frame body through a gas guide core shaft in communication with the dust collecting cylinder, and a gas pump with an output end is installed on the frame body and is in communication with the gas guide core shaft through a rotary joint. The dust collecting cylinder comprises a cylinder body and an inner cylinder sleeve which are concentrically arranged. The inner cylinder sleeve is sleeved and fixed on the outer periphery of the gas guide core shaft and is in communication with each other. A plurality of connecting rods are arranged between the cylinder body and the inner cylinder sleeve. An air inlet pipe is arranged through the cylinder body and extends to one side of the inner cylinder sleeve. A mounting seat fixedly arranged on the outer side of the cylinder body is arranged in communication with the end of the air inlet pipe. A dust suction cover is arranged in communication and cooperation with the mounting seat. The mounting seat and the dust suction cover are in communication through a corrugated pipe. The dustproof cleaning device is more targeted and is more flexible and convenient to use in places with complex equipment and construction positions. When the dust suction cover is rotated to a downward direction, the dust suction effect will not be affected by the backflow of dust.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of construction equipment, in particular to a dustproof cleaning device and method for a construction site. BACKGROUND

[0002] Dust is inevitably generated during the construction process, and contains a large amount of particulate matter, which invades the respiratory tract and lung lobes of the human body when people have no defense, thereby causing diseases of the respiratory system, cardiovascular system, blood system, reproductive system, etc., such as inflammation of the throat, emphysema, asthma, rhinitis, bronchitis, etc., and long-term exposure to such an environment can induce lung cancer, myocardial ischemia and damage. If it is indoor construction, the dust will stay longer due to insufficient air circulation. In large construction sites, water is generally sprayed to reduce dust. This method is simple to operate, but the contact efficiency is not high, the dust reduction effect is limited, and it can also cause the environment of the construction site to deteriorate.

[0003] Chinese Patent No. CN210814408U discloses a dustproof device for building engineering, comprising a dustproof box body, a fan is fixedly connected to the top center of the dustproof box body, an exhaust pipe is arranged on the side of the fan, an air suction pipe is arranged at the bottom of the fan, eight fences are uniformly arranged at the bottom periphery of the dustproof box body, a first air filter and a second air filter are sequentially arranged in the ring formed by the fences in the dustproof box body, a dust box is arranged in the storage box body, four bases are arranged at the bottom of the storage box body, and a rotating shaft penetrates the center of the universal wheel and extends to the two sides to be rotatably connected to the two side walls of the support.

[0004] In this scheme, dust is collected by using the filtering effect to complete dust prevention. However, in actual application, especially in large outdoor environments, this dust collection and prevention device has poor targeting and low recycling processing efficiency, and is not convenient for flexible application in specific dust generation positions. SUMMARY

[0005] The present application aims to provide a dustproof cleaning device and method for a construction site to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The dustproof cleaning device for a construction site comprises a frame body and a dust collecting cylinder mounted on the frame body, the dust collecting cylinder is rotatably mounted on the frame body through a gas guide core shaft in communication with the dust collecting cylinder, and a gas pump with an output end connected to the gas guide core shaft through a rotary joint is mounted on the frame body;

[0008] The dust collecting cylinder comprises a cylinder body and an inner cylinder sleeve arranged concentrically, the inner cylinder sleeve is sleeved and fixed on the outer periphery of the air guide core and is in communication with each other, a plurality of groups of connecting rods are arranged between the cylinder body and the inner cylinder sleeve, an air receiving pipe is arranged through the cylinder body and extends to one side of the inner cylinder sleeve, a mounting seat fixedly arranged on the outer side of the cylinder body is arranged in communication at the end of the air receiving pipe, a dust collecting cover is arranged in communication and matched on the mounting seat, and the mounting seat and the dust collecting cover are connected in communication through a corrugated pipe.

[0009] As a further scheme of the present application: the air receiving pipe is arranged in communication at the end away from the mounting seat, and a gas distribution plate is arranged on the end of the air receiving pipe, the surface of the gas distribution plate is uniformly provided with through holes, and the gas distribution plate is arranged in an arc shape, the center of the gas distribution plate coincides with the axis of the inner cylinder sleeve.

[0010] As a further scheme of the present application: the end of the mounting seat is embedded with an annular mounting groove arranged concentrically with the opening of the mounting seat, one end of the corrugated pipe is fixedly connected in the annular mounting groove, the other end is rotatably connected to the dust collecting cover, a wire slot is further embedded between the annular mounting groove and the opening of the mounting seat, a winding shaft is rotatably connected at the end away from the opening in the wire slot, a torsional spring is connected between the winding shaft and the wire slot, a wire rope is wound around the winding shaft, the free end of the wire rope passes through the wire slot, and the end away from the winding shaft is rotatably connected to the dust collecting cover.

[0011] As a further scheme of the present application: a plurality of groups of wire slots are arranged in an annular array on the side of the opening of the mounting seat, the end away from the opening of the mounting seat is in the form of a cylindrical cavity, and the winding shaft is rotatably connected in the cylindrical cavity.

[0012] As a further scheme of the present application: the dust collecting cover comprises a cover body and a threaded sleeve arranged in communication, a bearing inner ring for mounting the end of the corrugated pipe is rotatably embedded in the inner ring of the threaded sleeve, the threaded sleeve is screw-fitted with the outer periphery of the mounting seat, and a notch is arranged through the opening of the threaded sleeve.

[0013] As a further scheme of the present application: the frame body comprises a base frame and a stand fixedly arranged on one side of the base frame, a plurality of groups of universal wheels are arranged in connection at the bottom of the base frame, the upper end of the stand is symmetrically bent at right angles, symmetrically through holes are arranged at the bent portions, the air guide core is rotatably connected in two groups of through holes at both ends, a gas pump is arranged on one side of one group of through holes, and a limiting piece for limiting and locking the air guide core is arranged on the outer side of the other group of through holes.

[0014] As a further scheme of the present application: the limiting piece comprises a fixed block fixedly connected to the assembly hole, the fixed block is movably embedded into the end of the assembly hole and provided with a sliding block, a rotating handle is rotatably arranged on the end of the fixed block away from the assembly hole, a threaded guide rod is fixedly connected to the center of the sliding block, the threaded guide rod is rotatably connected to the fixed block, and the threaded guide rod is movably connected to the sliding block through thread cooperation.

[0015] As a further scheme of the present application: the sliding block comprises a prismatic sliding rod body, the sliding rod body is sleeved on the periphery of the threaded guide rod through thread cooperation, the sliding rod body is movably arranged in the fixed block, an elastic pad is elastically connected to the end of the sliding rod body away from the threaded guide rod through a spring, and a flange is arranged on the periphery of the side of the sliding rod body away from the threaded guide rod, and a soft rubber sleeve is sleeved between the flange and the periphery of the sliding rod body.

[0016] As a further scheme of the present application: the air guide mandrel comprises a cylinder shaft, a plurality of groups of strip-shaped channels are arranged through the periphery of the cylinder shaft in the axial direction, the strip-shaped channels are uniformly arranged on the periphery of the cylinder shaft, one end of the cylinder shaft is connected to the air pump through a rotary joint, and the other end of the cylinder shaft is closed and provided with a plurality of end grooves embedded on the periphery of the end.

[0017] The dustproof cleaning method comprises the following steps:

[0018] S1, the chassis is moved to the construction position through the universal wheel, the dust collection cylinder is rotated to align the dust collection cover with the construction position, and the limiting piece is rotated to limit the rotation angle of the air guide mandrel in the dust collection cylinder.

[0019] S2, after the air pump is started, dust is sucked into the dust collection cylinder through the dust collection cover, and the tail gas filtered is discharged through the air pump.

[0020] Compared with the prior art, the present application has the following advantages: when in use, the air pump can be started to form a negative pressure suction in the space in the cylinder body through air extraction, so that dust at the construction site can be sprayed on the surface of the inner cylinder sleeve through the mounting seat and the air connection pipe, impurities are filtered, and tail gas is discharged from the air pump after passing through the air guide mandrel. In this way, the alignment direction of the dust collection cover can be flexibly adjusted through the rotation of the air guide mandrel relative to the frame, the dustproof cleaning is more targeted, and the dust collection cover and the mounting seat are detachably arranged, so that the dust collection cover can be conveniently used for dustproofing in narrow spaces, the dust collection cover can be removed and aligned with various positions or placed on one side of a fixed position, and the equipment and the construction position are more flexible and convenient to use in complex places during construction. The arrangement of the air connection pipe also prevents dust from flowing back when the dust collection cover is rotated to the downward direction, so that the dust collection effect is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Structure diagram of the present application.

[0022] Figure 2 Structure diagram of the present application.

[0023] Figure 3 Structure diagram of the present application.

[0024] Figure 4 Structure diagram of the present application.

[0025] Figure 5 Structure diagram of the present application.

[0026] Figure 6 Structure diagram of the present application.

[0027] Figure 7 Structure diagram of the present application. Figure 6 Structure diagram of the present application.

[0028] Figure 8 Structure diagram of the present application. Structure diagram of the present application.

[0029] Structure diagram of the present application. Figure 9 Structure diagram of the present application. Structure diagram of the present application.

[0030] Structure diagram of the present application. Figure 10 Structure diagram of the present application. Structure diagram of the present application.

[0031] Structure diagram of the present application. Figure 11 Structure diagram of the present application. Structure diagram of the present application.

[0032] Figure: 1 - chassis, 11 - stand, 12 - universal wheel, 13 - assembly hole, 2 - dust collecting cylinder, 21 - cylinder body, 22 - inner cylinder sleeve, 23 - connecting rod, 24 - air distribution pipe, 25 - air distribution plate, 3 - dust collecting cover, 31 - cover body, 32 - threaded sleeve, 33 - slot, 34 - bearing inner ring, 4 - air pump, 5 - limiting piece, 51 - fixed block, 52 - rotating handle, 53 - sliding block, 5301 - sliding rod body, 5302 - elastic gasket, 5303 - soft rubber sleeve, 54 - threaded guide rod, 6 - air guide spindle, 61 - cylinder shaft, 62 - strip-shaped through slot, 63 - end slot, 7 - mounting seat, 71 - annular mounting slot, 72 - wire slot, 73 - winding shaft, 8 - corrugated pipe, 9 - wire rope. DETAILED DESCRIPTION

[0033] Please refer to Figures 1-4The engineering project site dustproof cleaning device in the embodiment of the application comprises a frame body and a dust collecting cylinder 2 installed on the frame body, the dust collecting cylinder 2 is rotatably installed on the frame body through a gas guide spindle 6 in communication with the dust collecting cylinder 2, and a gas pump 4 with an output end connected to the gas guide spindle 6 through a rotary joint is installed on the frame body;

[0034] The dust collecting cylinder 2 comprises a cylinder body 21 and an inner cylinder sleeve 22 arranged concentrically, the inner cylinder sleeve 22 is sleeved and fixed on the outer periphery of the gas guide spindle 6 and is in communication with each other, a plurality of connecting rods 23 are arranged between the cylinder body 21 and the inner cylinder sleeve 22, a gas connection pipe 24 extending to one side of the inner cylinder sleeve 22 is arranged through the cylinder body 21, a mounting seat 7 fixedly arranged on the outer side of the cylinder body 21 is arranged in communication with the end of the gas connection pipe 24, a dust suction cover 3 is arranged in communication with the mounting seat 7, and the mounting seat 7 and the dust suction cover 3 are connected in communication through a corrugated pipe 8.

[0035] In the embodiment, preferably, the cylinder body 21 and the inner cylinder sleeve 22 are both cylindrical, one side of the cylinder body 21 is provided with a cover door for cleaning garbage accumulated in the cylinder body 21, the inner cylinder sleeve 22 is in a mesh structure, and the cylinder body 21 and the inner cylinder sleeve 22 can be synchronously rotated through the gas guide spindle 6. In order to facilitate assembly, the gas guide spindle 6 is slidably arranged through the center of the inner cylinder sleeve 22, and both ends of the gas guide spindle 6 are connected and fixed through bolt assembly with both ends of the cylinder body 21 through a lining plate. Further preferably, the surface of the inner cylinder sleeve 22 is covered with a porous sponge, so that impurities can be filtered while being directly discharged.

[0036] In use, after the gas pump 4 is started, a negative pressure suction is formed in the space in the cylinder body 21 through air suction, so that dust at the construction site can be sprayed on the surface of the inner cylinder sleeve 22 through the mounting seat 7 and the gas connection pipe 24 through the dust suction cover 3, and after filtering impurities, the tail gas is discharged from the gas pump 4 through the gas guide spindle 6. In this way, the alignment direction of the dust suction cover 3 can be flexibly adjusted through the rotation of the gas guide spindle 6 relative to the frame body, the dustproof cleaning is more targeted, and the detachable arrangement of the dust suction cover 3 and the mounting seat 7 can facilitate dustproof use in narrow spaces. The dust suction cover 3 can be removed and aligned with various positions or placed on one side of a fixed position, and the device is more flexible and convenient to use in complex places with complex equipment and construction positions during construction. The arrangement of the gas connection pipe 24 also facilitates the use of the dust suction cover 3 when it is rotated to the downward direction, so that the dust suction effect is not affected by the backflow of dust.

[0037] As Figure 4As shown, the air inlet pipe 24 is provided with an air distribution plate 25 at the end away from the mounting base 7, the air distribution plate 25 is provided with uniformly distributed through holes on the surface and is curved in an arc shape, the center of the air distribution plate 25 coincides with the axis of the inner sleeve 22. Such arrangement can improve the contact efficiency of dust impurities with the inner sleeve 22, and the filtering and screening effect is better. Moreover, the air distribution plate 25 cooperates with the air inlet pipe 24 to avoid the backflow of dust from one side of the dust cover 3 when the dust cover 3 is tilted downward for dust collection, and can effectively collect dust in various states.

[0038] Further, as shown in the drawings, Figures 4-7 As shown, the end of the mounting base 7 is embedded with an annular mounting groove 71 concentrically arranged with the opening of the mounting base 7, one end of the bellows 8 is fixedly connected in the annular mounting groove 71, and the other end is rotatably connected to the dust cover 3. The annular mounting groove 71 and the opening of the mounting base 7 are further embedded with a wire slot 72, the wire slot 72 is rotatably connected with a winding shaft 73 at the end away from the opening, the winding shaft 73 and the wire slot 72 are connected with a torsional spring, the winding shaft 73 is provided with a wire rope 9 wound thereon, the free end of the wire rope 9 passes through the wire slot 72 and is rotatably connected to the dust cover 3 at the end away from the winding shaft 73.

[0039] In this embodiment, preferably, the wire slot 72 is arranged in multiple groups in an annular array on the side of the opening of the mounting base 7, the end of the wire slot 72 away from the opening of the mounting base 7 is a cylindrical cavity, and the winding shaft 73 is rotatably connected in the cylindrical cavity. The wire rope 9 can preferably be a metal wire. Normally, the dust cover 3 and the mounting base 7 are assembled and connected by thread cooperation, so that when the dust collecting cylinder 2 is rotated, the dust cover 3 can be oriented in different directions for dust collection in different directions. When it is necessary to collect dust in complex or narrow environments, the dust cover 3 can be removed by rotating, and the end of the bellows 8 and the end of the wire rope 9 are rotatably connected to the dust cover 3, so that there is no influence, and then the bellows 8 is stretched, at this time the wire rope 9 can be unwound from the winding shaft 73 and stretched synchronously, and the multiple groups of wire ropes 9 are located in the bellows 8, so that during dust collection, the bellows 8 will not be concave and flat due to the internal negative pressure passing through the fluid, and the wire rope 9 can increase the surface support effect of the bellows 8 to a certain extent. This way can improve the applicability of the device and can be applied in more occasions, and is more convenient and flexible to use.

[0040] The dust cover 3 includes a cover body 31 and a threaded sleeve 32, a bearing inner ring 34 for mounting the end of the bellows 8 is rotatably embedded in the inner ring of the threaded sleeve 32, the threaded sleeve 32 is threadedly fitted with the mounting base 7, and a notch 33 is provided through the opening of the threaded sleeve 32.

[0041] In use, preferably, the opening of the bearing inner ring 34 and the threaded sleeve 32 are concentrically arranged, the end of the wire rope 9 is fixedly connected to the bearing inner ring 34, when the threaded sleeve 32 and the cover body 31 rotate synchronously, the bearing inner ring 34 rotates relative to the threaded sleeve 32, so as not to affect the bellows 8 and the wire rope 9, and when the threaded sleeve 32 is unscrewed from the mounting seat 7, the bellows 8 can be bent and pulled out from the slot 33 on one side, so that the threaded sleeve 32 and the cover body 31 can be hung in a fixed position or assembled on a fixed plate structure, so as to further improve the dust collection efficiency.

[0042] As shown in Figures 1-2 , the frame body includes a base frame 1 and a stand 11 fixedly arranged on one side of the base frame 1, a plurality of universal wheels 12 are connected and arranged at the bottom of the base frame 1, the upper end of the stand 11 is symmetrically and right-angled bent, and a mounting hole 13 is symmetrically and throughly arranged at the bent portion, the air guide shaft 6 is rotatably connected and arranged in two groups of mounting holes 13 at both ends, respectively, a group of mounting holes 13 is provided with the air pump 4 on one side, and the other group of mounting holes 13 is provided with a limiting piece 5 for limiting and locking the air guide shaft 6 on the outside.

[0043] Among them, the base frame 1 can be moved through the universal wheel 12, and the dust collection cylinder 2 can be rotated on the stand 11 to adjust the dust collection angle of the dust collection cover 3, the base frame 1 is a frame structure, so as to facilitate the movement to more unknown places for flexible dust collection and dust prevention.

[0044] And further, as shown in Figure 10 , the limiting piece 5 includes a fixed block 51 fixedly connected to the mounting hole 13, a sliding block 53 movably embedded at the end of the fixed block 51 extending into the mounting hole 13, a rotating handle 52 rotatably matched and arranged at the periphery of the end of the fixed block 51 away from the mounting hole 13, a threaded guide rod 54 fixedly connected and arranged at the center of the sliding block 53, the threaded guide rod 54 is rotatably connected with the fixed block 51, and the threaded guide rod 54 is movably connected with the sliding block 53 through threaded cooperation, and the sliding direction of the sliding block 53 and the fixed block 51 is consistent with the extension direction of the threaded guide rod 54.

[0045] Among them, preferably, the sliding block 53 is in a prismatic structure, and the end of the sliding block 53 away from the fixed block 51 has a plug which is slidably matched with the mounting hole 13, and the plug is embedded with a rubber gasket. In use, the threaded guide rod 54 can be rotated by rotating the rotating handle 52, and the sliding block 53 can be driven to extend into the mounting hole 13 through threaded cooperation, so that the plug on the sliding block 53 can be tightly attached to the air guide shaft 6, thereby limiting the rotation angle of the air guide shaft 6 from changing, so as to control the dust collection angle of the dust collection cover 3, which is simple and convenient to operate and flexible to adjust.

[0046] And as shown in Figure 11As shown, in order to improve the stability effect of the air guide mandrel 6, the sliding block 53 comprises a prismatic sliding rod body 5301 which is sleeved on the outer periphery of the threaded guide rod 54 through threaded cooperation, is slidingly fitted in the fixed block 51, and is provided with an elastic gasket 5302 at the end thereof away from the threaded guide rod 54 through elastic connection of a spring, and has a flange on the outer periphery of the side thereof away from the threaded guide rod 54, and a soft rubber sleeve 5303 is sleeved between the flange and the outer periphery of the sliding rod body 5301.

[0047] Preferably, the soft rubber sleeve 5303 is made of silica gel, and the cross-sectional radius of the elastic gasket 5302 is smaller than that of the soft rubber sleeve 5303. When the rotating handle 52 is rotated, the sliding rod body 5301 can be driven to move away from the fixed block 51 and towards the air guide mandrel 6 through the threaded guide rod 54. When the elastic gasket 5302 contacts the air guide mandrel 6, it can gradually adhere thereto, and at the same time, the elastic gasket 5302 is elastically compressed at the end of the sliding rod body 5301. As the elastic gasket 5302 is gradually compressed, the soft rubber sleeve 5303 is pressed by the flange from the outer periphery of the elastic gasket 5302 and overflows, thereby adhering to the end of the air guide mandrel 6 and cooperating to stably limit the rotation of the air guide mandrel 6.

[0048] In order to improve the stability effect of the cooperation between the air guide mandrel 6 and the limiting member 5, as shown in the drawings, Figure 9 As shown, the air guide mandrel 6 comprises a barrel shaft 61, a plurality of groups of strip-shaped channels 62 are provided through the outer periphery of the barrel shaft 61 in the axial direction, the strip-shaped channels 62 are uniformly arranged on the outer periphery of the barrel shaft 61, one end of the barrel shaft 61 is connected to the air pump 4 through a rotary joint, and the other end of the barrel shaft 61 is closed and a plurality of groups of end grooves 63 are embedded on the outer periphery of the end thereof.

[0049] In use, when the elastic gasket 5302 contacts the barrel shaft 61, it can gradually adhere thereto, and at the same time, the elastic gasket 5302 is elastically compressed at the end of the sliding rod body 5301. As the elastic gasket 5302 is gradually compressed, the soft rubber sleeve 5303 is pressed by the flange from the outer periphery of the elastic gasket 5302 and overflows, thereby adhering to the end of the barrel shaft 61 and being able to be squeezed into the space between the end grooves 63 and the inner wall of the assembly hole 13. In this way, the rotational resistance of the barrel shaft 61 can be improved, and at the same time, the resistance of the elastic gasket 5302 can further ensure the angular stability of the barrel shaft 61.

[0050] A dustproof cleaning method, comprising the following steps:

[0051] S1, move the chassis 1 to the construction position by the universal wheel 12, rotate the dust collecting cylinder 2 to align the dust collecting cover 3 with the construction position, and rotate the limiting member 5 to limit the rotation angle of the air guide mandrel 6 in the dust collecting cylinder 2;

[0052] S2, after starting the air pump 4, the dust is sucked into the dust collecting cylinder 2 through the dust collecting hood 3, and the filtered tail gas is discharged through the air pump 4.

[0053] Specifically, according to the different actual application environment, the dust collecting hood 3 can be detached from the mounting seat 7, and the installation position of the dust collecting hood 3 can be extended through the corrugated pipe 8 cooperating with the wire rope 9, which is more convenient and flexible to use, and can be applied to multi-angle and multi-environment construction dust prevention.

Claims

1. An engineering project site dustproof cleaning device, comprising a frame body and a dust collecting cylinder mounted on the frame body, the dust collecting cylinder is rotatably mounted on the frame body through a gas guide spindle in communication with the dust collecting cylinder, and a gas pump with an output end connected to the gas guide spindle through a rotary joint is mounted on the frame body; the dust collecting cylinder comprises a concentrically arranged cylinder body and an inner cylinder sleeve, the inner cylinder sleeve is sleeved and fixed on the outer periphery of the gas guide spindle and is in communication with each other, a plurality of connecting rods are connected and arranged between the cylinder body and the inner cylinder sleeve, an air inlet pipe extending to one side of the inner cylinder sleeve is arranged through the cylinder body, a mounting seat fixedly arranged outside the cylinder body is arranged in communication on the end of the air inlet pipe penetrating through the cylinder body, a dust suction cover is arranged in communication on the mounting seat, and the mounting seat and the dust suction cover are connected in communication through a corrugated pipe; the end of the air inlet pipe away from the mounting seat is provided with a gas distribution plate, the surface of the gas distribution plate is uniformly provided with through holes, and the gas distribution plate is arranged in an arc shape, the center of the gas distribution plate and the axis of the inner cylinder sleeve coincide; the frame body comprises a base frame and a stand fixedly arranged on one side of the base frame, a plurality of universal wheels are connected and arranged on the bottom of the base frame, the upper end of the stand is symmetrically bent at right angles, a plurality of assembly holes are symmetrically and penetratingly arranged at the bent portions, the gas guide spindle is rotatably connected to two assembly holes at both ends, respectively, a gas pump is mounted on one side of one assembly hole, and a limiting piece for limiting and locking the gas guide spindle is mounted on the outer side of the other assembly hole; the limiting piece comprises a fixed block fixedly connected to the assembly hole, a sliding block movably embedded in the end of the fixed block penetrating into the assembly hole, a rotating handle rotatably arranged on the end of the fixed block away from the assembly hole, a threaded guide rod fixedly connected to the center of the sliding block, the threaded guide rod is rotatably connected to the fixed block, the threaded guide rod is movably connected to the sliding block in a threaded manner, and the sliding direction of the sliding block and the fixed block is consistent with the extension direction of the threaded guide rod; the sliding block comprises a prismatic sliding rod body, the sliding rod body is sleeved on the outer periphery of the threaded guide rod in a threaded manner, the sliding rod body is slidingly fitted in the fixed block, an elastic gasket is elastically connected to the end of the sliding rod body away from the threaded guide rod through a spring, the outer periphery of the side of the sliding rod body away from the threaded guide rod has a flange, and a soft rubber sleeve is sleeved between the flange and the outer periphery of the sliding rod body; the gas guide spindle comprises a cylinder shaft, a plurality of strip-shaped channels are penetratingly arranged on the outer periphery of the cylinder shaft in the axial direction, the strip-shaped channels are uniformly arranged on the outer periphery of the cylinder shaft, one end of the cylinder shaft is connected to the gas pump through a rotary joint, and the other end of the cylinder shaft is closed and embedded with a plurality of end grooves on the outer periphery of the other end.

2. The dust control apparatus for an engineered worksite of claim 1, wherein, an annular mounting groove concentrically arranged with the opening of the mounting seat is embedded in the end of the mounting seat, one end of the corrugated pipe is fixedly connected in the annular mounting groove, and the other end is rotatably connected to the dust suction cover, a wire groove is further embedded between the annular mounting groove and the opening of the mounting seat, a winding shaft is rotatably connected to the end of the wire groove away from the opening, a torsional spring is connected between the winding shaft and the wire groove, a wire rope is wound around the outer periphery of the winding shaft, the free end of the wire rope penetrates through the wire groove, and the end of the wire rope away from the winding shaft is rotatably connected to the dust suction cover.

3. The dust control cleaning apparatus for an engineered worksite of claim 2, wherein, The wire slot is arranged in a circular array on the opening side of the mounting base, and the distal end of the wire slot away from the opening of the mounting base is a cylindrical cavity, and the winding shaft is connected in the cylindrical cavity.

4. The dust control apparatus for construction sites according to any one of claims 1 to 3, characterized by The dust cover includes a cover body and a threaded sleeve, a bearing inner ring for mounting the end of the corrugated pipe is rotatably embedded in the inner ring of the threaded sleeve, the threaded sleeve is adapted to the outer peripheral threaded sleeve of the mounting base, and a notch is provided through the open lower end of the threaded sleeve.

5. A dust prevention and cleaning method characterized by The dustproof cleaning device for an engineering project site as claimed in claim 1 is used, including the following steps: S1, moving the chassis to the construction position by the universal wheel, rotating the dust collection cylinder to align the dust cover with the construction position, and rotating the limiting piece to limit the rotation angle of the air guide shaft in the dust collection cylinder; S2, after starting the air pump, dust is sucked into the dust collection cylinder through the dust cover, and the filtered tail gas is discharged through the air pump.

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