Building construction dust treatment device

Abstract

The application relates to the technical field of building construction, and discloses a building construction dust-settling treatment device, which comprises a mobile vehicle body, a pair of spraying pipes arranged on the mobile vehicle body, a lifting piece arranged on the mobile vehicle body, an adjusting seat connected to the lifting end of the lifting piece, a driving assembly arranged on the adjusting seat, a driving end of the driving assembly connected with the pair of spraying pipes, so that the pair of spraying pipes rotates relative to the adjusting seat, and the pair of spraying pipes rotates synchronously in the opposite direction, and the spraying pipes reciprocate in the direction away from the adjusting seat during dust settling; a fan arranged on the mobile vehicle body, a transfer rod transferred on the mobile vehicle body, the transfer rod being fixedly connected with the fan, so that the fan rotates relative to the mobile vehicle body, and the air outlet end of the fan faces the spraying pipes; and a rotating plate transferred on the top surface of the mobile vehicle body, the pair of spraying pipes and the fan being arranged on the rotating plate. The dust-settling treatment working efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a building construction dust fall treatment device. BACKGROUND

[0002] The building construction dust fall device is an equipment for reducing dust pollution in the construction process, which sprays atomized water droplets with dust in the air to increase its weight and make it settle to the ground.

[0003] As in patent No. CN117771857A, a building construction dust fall equipment, by installing a dust fall device on the vehicle body, and using an adjusting plate to drive the dust fall device to rotate, to carry out dust fall operation in all directions, but the prior art sets the dust fall device on the top surface of the vehicle body, and cannot adjust the height of the dust fall device, resulting in a small water mist coverage range, thereby affecting the dust fall range. In the actual use process, the vehicle body needs to be repeatedly moved and the dust fall device needs to be rotated to carry out dust fall in the construction site, which has low dust fall efficiency. Therefore, there is an urgent need for a building construction dust fall device to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a building construction dust fall treatment device to solve the above-mentioned problems existing in the prior art, and to improve the working efficiency of dust fall treatment.

[0005] To achieve the above-mentioned purpose, the present application provides the following scheme: the present application provides a building construction dust fall treatment device, comprising:

[0006] A mobile vehicle body;

[0007] A pair of spray pipes are arranged on the mobile vehicle body, the mobile vehicle body is provided with a lifting piece, the lifting end of the lifting piece is connected with an adjusting seat, the adjusting seat is provided with a driving assembly, the driving end of the driving assembly is connected with a pair of spray pipes, so that a pair of spray pipes rotate relative to the adjusting seat, and a pair of spray pipes rotate synchronously in opposite directions, and the spray pipe reciprocates in the direction away from the adjusting seat during dust fall;

[0008] A fan is arranged on the mobile vehicle body, the mobile vehicle body is connected with an adapter rod, the adapter rod is fixedly connected with the fan, so that the fan rotates relative to the mobile vehicle body, and the air outlet end of the fan faces the spray pipe;

[0009] A rotating plate is connected to the top surface of the mobile vehicle body, a pair of spray pipes and a fan are arranged on the rotating plate.

[0010] Preferably, the driving assembly comprises:

[0011] An adapter plate, one end of which is connected to the adjustment seat via a rotating shaft, a mounting plate is fixedly connected to one side of the adjustment seat, a first drive motor is fixedly connected to the mounting plate, and an output shaft of the first drive motor is coaxially fixed to the rotating shaft;

[0012] The first cylinder is fixedly connected to one end of the adapter plate away from the adjustment seat. The piston rod of the first cylinder is fixedly connected to the connecting seat. A reciprocating part is provided on the connecting seat for reciprocating motion. The reciprocating part is connected to a pair of the spray pipes.

[0013] Preferably, the reciprocating portion comprises:

[0014] A movable plate, wherein a slide groove is provided in the connecting seat, and the movable plate is limitedly slidably connected in the slide groove and is connected to a pair of the spray pipes;

[0015] A reciprocating screw is connected in the slide groove, and the movable plate is threadedly sleeved on the reciprocating screw;

[0016] The second drive motor is fixed in the connecting seat, and the output shaft of the second drive motor is coaxially fixed to the reciprocating screw.

[0017] Preferably, a pair of limiting columns are symmetrically fixed along the center of the movable plate.

[0018] Preferably, it also includes:

[0019] A driving seat is slidably connected to an end of the connecting seat away from the first cylinder, the driving seat is fixedly connected to the movable plate via a limiting column, and a slot is formed on the driving seat, and a pair of the spray pipes are symmetrically arranged on both sides of the slot along the center;

[0020] The third drive motor is fixed in the drive seat, and the output shaft of the third drive motor is connected to the pair of spray pipes through a transmission member so that the pair of spray pipes rotate synchronously in opposite directions, and the transmission member is a self-locking structure.

[0021] Preferably, the transmission member includes:

[0022] A worm is coaxially fixed to the output shaft of the third drive motor, and the worm is connected to the empty slot;

[0023] A pair of worm wheels are respectively connected to a pair of the spray pipes in a one-to-one correspondence. A support rod is fixedly connected to the axis of the worm wheel. The two ends of the support rod are connected to the opposite sides of the inner wall of the empty groove. The pair of worm wheels are symmetrically meshed on both sides of the worm along the center.

[0024] Preferably, the mutually distal ends of the worm gears are fixedly connected with fixing bases, recesses are formed in the fixing bases, one end of the spray pipe extends into the recess, a support rod is arranged on the part of the spray pipe extending into the recess, the support rod is connected with the fixing base, a torsion spring is arranged around the support rod, and the two ends of the torsion spring are fixedly connected with the support rod and the fixing base respectively.

[0025] Preferably, a support is fixedly connected to the top surface of the rotating plate, the two sides of the fan are connected to the support through the connecting rods, a fourth driving motor is fixedly connected to the outer side wall of the support, and the output shaft of the fourth driving motor is fixedly connected with the adjacent connecting rod.

[0026] Preferably, a circular groove is formed in the top surface of the moving vehicle body, a driven gear is connected to the inner wall at the bottom end of the circular groove, the top end of the driven gear is fixedly connected with the rotating plate, a fifth driving motor is fixedly connected in the moving vehicle body, a driving gear is fixedly connected to the output shaft of the fifth driving motor, and the driving gear is engaged with the driven gear.

[0027] Preferably, a plurality of abutting rods are fixedly connected to the bottom end of the moving vehicle body, a Forma wheel is arranged on one side of the abutting rod, and the Forma wheel selectively rolls in contact with or not in contact with the ground.

[0028] The present application discloses the following technical effects:

[0029] The present application sets a pair of spray pipes on the moving vehicle body, uses the lifting member to adjust the height of the adjusting seat, sets a pair of spray pipes on the adjusting seat, drives and controls the pair of spray pipes through the driving assembly, and makes the pair of spray pipes relatively rotate and also rotate relative to the adjusting seat. In addition, the spray pipe reciprocally moves relative to the moving vehicle body during spraying, so that the spraying range of the spray pipe is greatly improved. In combination with the fan arranged on the moving vehicle body, the fan blows air towards the spray pipe, so that the coverage range of the sprayed water mist is further expanded. Moreover, the fan and the spray pipe are driven to rotate relative to the moving vehicle body through the rotating plate, so that the spray pipe and the fan synchronously rotate and spray dust in the construction site along the circumference of the moving vehicle body, and the dust suppression efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Figure 1 The position relationship diagram of the moving vehicle body and the spray pipe in the present application;

[0032] Figure 2 For the position relationship diagram of the spray pipe and the fan in the application;

[0033] Figure 3 For the connection relationship diagram of the fifth driving motor and the rotating plate in the application;

[0034] Figure 4 For the position relationship diagram of the second driving motor and the third driving motor in the application;

[0035] Figure 5 For the position relationship diagram of the connecting seat and the driving seat in the application;

[0036] Figure 6 For the connection relationship diagram of the support and the fan in the application;

[0037] Figure 7 For the connection relationship diagram of the spray pipe and the worm in the application;

[0038] 1, the moving vehicle body; 2, the spray pipe; 3, the adjusting seat; 4, the fan; 5, the adapter rod; 6, the rotating plate; 7, the water tank; 8, the communication pipe; 9, the pump; 10, the multi-stage telescopic hydraulic cylinder; 11, the adapter plate; 12, the rotating shaft; 13, the mounting plate; 14, the first driving motor; 15, the first air cylinder; 16, the connecting seat; 17, the moving plate; 18, the reciprocating screw; 19, the second driving motor; 20, the limiting column; 21, the driving seat; 22, the third driving motor; 23, the worm; 24, the worm gear; 25, the supporting rod; 26, the fixed seat; 27, the supporting rod; 28, the torsional spring; 29, the support; 30, the adapter rod; 31, the fourth driving motor; 32, the driven gear; 33, the driving gear; 34, the fifth driving motor; 35, the abutting rod; 36, the form wheel. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0040] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the application will be further described in detail below with reference to the drawings and specific embodiments.

[0041] Reference Figures 1-7 The application provides a building construction dust removal device, which comprises:

[0042] The mobile vehicle body 1 is provided with a pair of spray pipes 2, and the mobile vehicle body 1 is provided with a lifting piece, the lifting end of the lifting piece is connected with an adjusting seat 3, the adjusting seat 3 is provided with a driving assembly, the driving end of the driving assembly is connected with the pair of spray pipes 2, so that the pair of spray pipes 2 rotates relative to the adjusting seat 3, and the pair of spray pipes 2 rotates synchronously in the opposite direction, and in the dust falling process, the spray pipe 2 reciprocates away from the adjusting seat 3.

[0043] A fan 4 is arranged on the mobile vehicle body 1, the mobile vehicle body 1 is connected with an adapter rod 5, the adapter rod 5 is fixedly connected with the fan 4, so that the fan 4 rotates relative to the mobile vehicle body 1, and the air outlet end of the fan 4 faces the spray pipe 2.

[0044] A rotating plate 6 is connected to the top surface of the mobile vehicle body 1, and the pair of spray pipes 2 and the fan 4 are arranged on the rotating plate 6.

[0045] The pair of spray pipes 2 is arranged on the adjusting seat 3, and the driving assembly drives and controls the pair of spray pipes 2, so that the pair of spray pipes 2 rotates relative to the adjusting seat 3, and the pair of spray pipes 2 reciprocates relative to the mobile vehicle body 1 in the spraying process, so that the spraying range of the spray pipe 2 is improved, the fan 4 arranged on the mobile vehicle body 1 is combined, air is blown to the spray pipe 2 by the fan 4, the water mist spraying range is further expanded, the rotating plate 6 drives the fan 4 and the spray pipe 2 to rotate relative to the mobile vehicle body 1, the spray pipe 2 and the fan 4 rotate synchronously, and the spray pipe 2 and the fan 4 spray dust falling to the construction site along the circumference of the mobile vehicle body 1, so that the dust falling treatment efficiency is improved.

[0046] Specifically, the water tank 7 is fixedly connected to the mobile vehicle body 1, the water tank 7 is communicated with the pair of spray pipes 2 through the communication pipe 8 without affecting the rotation of the rotating plate 6, the pump 9 is arranged on the communication pipe 8, and water is introduced into the spray pipe 2 and atomized and sprayed to the construction site through the nozzle.

[0047] It can be understood that the lifting piece adopts a common multi-stage telescopic hydraulic cylinder 10, and the piston rod top end of the multi-stage telescopic hydraulic cylinder 10 is fixedly connected with the adjusting seat 3.

[0048] Further, the driving assembly comprises:

[0049] The adapter plate 11 is connected with the adjusting seat 3 through the rotating shaft 12, the adjusting seat 3 is fixedly connected with the mounting plate 13 on one side, the first driving motor 14 is fixedly connected to the mounting plate 13, and the output shaft of the first driving motor 14 is coaxially fixedly connected with the rotating shaft 12.

[0050] The first cylinder 15 is fixed to the adapter plate 11 away from the adjusting seat 3, and the piston rod of the first cylinder 15 is fixed with a connecting seat 16, and a reciprocating part reciprocates on the connecting seat 16 and is connected with a pair of spray pipes 2.

[0051] The first driving motor 14 drives the rotating shaft 12 to rotate, so that the adapter plate 11 rotates relative to the adjusting seat 3, drives the spray pipe 2 to rotate relative to the adjusting seat 3, and connects the connecting seat 16 with the adapter plate 11 through the first cylinder 15, and the connecting seat 16 is connected with a pair of spray pipes 2 through the reciprocating part, so that the spray pipe 2 can also adjust the distance between the adapter plate 11 while rotating, and the reciprocating part drives the spray pipe 2 to realize the reciprocating movement of the spray pipe 2, and the spraying range is improved.

[0052] Further, the reciprocating part comprises:

[0053] The moving plate 17 is connected with a pair of spray pipes 2, and a sliding groove is formed in the connecting seat 16, and the moving plate 17 is slidingly connected in the sliding groove;

[0054] The reciprocating screw 18 is connected in the sliding groove, and the moving plate 17 is threadedly sleeved on the reciprocating screw 18;

[0055] The second driving motor 19 is fixed in the connecting seat 16, and the output shaft of the second driving motor 19 is coaxially fixed with the reciprocating screw 18.

[0056] In the technical scheme, the moving plate 17 is connected with a pair of spray pipes 2, the second driving motor 19 drives the reciprocating screw 18 to rotate, the moving plate 17 is threadedly sleeved on the reciprocating screw 18, and the moving plate 17 is slidingly connected with the connecting seat 16, so that the reciprocating movement of the moving plate 17 is realized, and a pair of spray pipes 2 are moved reciprocally.

[0057] Further, a pair of limiting columns 20 are fixed on the moving plate 17 along the center symmetry.

[0058] Further, it further comprises:

[0059] The driving seat 21 is slidingly connected to the end of the connecting seat 16 away from the first cylinder 15, the driving seat 21 is fixed with the moving plate 17 through the limiting column 20, and the driving seat 21 is provided with a hollow slot, and a pair of spray pipes 2 are symmetrically arranged on both sides of the hollow slot;

[0060] The third driving motor 22 is fixed in the driving seat 21, and the output shaft of the third driving motor 22 is connected with a pair of spray pipes 2 through a transmission member, so that a pair of spray pipes 2 rotate in opposite directions synchronously, and the transmission member is a self-locking structure.

[0061] The driving base 21 is slidably connected to the connecting base 16, and the movable plate 17 is fixedly connected to the driving base 21 by the limiting column 20. The reciprocating movement of the movable plate 17 drives the pair of spray pipes 2 to move, thereby increasing the spray coverage area. The third driving motor 22 is connected to the pair of spray pipes 2 through a transmission member, so that the spray pipes 2 can rotate synchronously to adjust the spray angle. The transmission member with a self-locking structure can keep the pair of spray pipes 2 stable and fixed after the third driving motor 22 stops, and maintain the adjusted angle position.

[0062] Further, the transmission member comprises:

[0063] The worm 23 is coaxially fixed to the output shaft of the third driving motor 22 and is connected to the hollow groove.

[0064] The pair of worm gears 24 are respectively connected to the pair of spray pipes 2 in a one-to-one correspondence. The shaft of the worm gear 24 is provided with a support rod 25, and the two ends of the support rod 25 are connected to the opposite sides of the inner wall of the hollow groove. The pair of worm gears 24 are symmetrically engaged on both sides of the worm 23.

[0065] When the worm 23 rotates, the pair of worm gears 24 rotate in opposite directions, thereby controlling the relative rotation of the pair of spray pipes 2 to expand or fold, achieving adjustment of the spray angle. When the pair of spray pipes 2 are coaxially distributed in the horizontal direction, the maximum spray angle is achieved.

[0066] Further, the mutually distant ends of the pair of worm gears 24 are fixedly connected to the fixing seat 26, which is provided with a groove. One end of the spray pipe 2 extends into the groove, and a support rod 27 is provided on the part of the spray pipe 2 extending into the groove. The support rod 27 is connected to the fixing seat 26, and a torsional spring 28 is wound around the support rod 27. The two ends of the torsional spring 28 are fixedly connected to the support rod 27 and the fixing seat 26, respectively.

[0067] The support rod 27 and the fixing seat 26 are elastically connected by the torsional spring 28, and the spray pipe 2 is fixedly connected to the support rod 27, so that the spray pipe 2 and the fixing seat 26 are elastically connected. When the movable plate 17 reciprocates, the driving base 21 drives the pair of spray pipes 2 to reciprocate. During the process, the spray pipe 2 elastically rotates relative to the fixing seat 26, thereby producing an elastic swing effect, which can further expand the original spray range of the spray pipe 2 and throw water mist to the construction site to reduce dust.

[0068] Further, the top surface of the rotating plate 6 is fixedly connected to a bracket 29, and the two sides of the fan 4 are connected to the bracket 29 through the connecting rods 5. The outer side wall of the bracket 29 is fixedly connected to a fourth driving motor 31, and the output shaft of the fourth driving motor 31 is fixedly connected to the adjacent connecting rod 5.

[0069] The fourth driving motor 31 drives the adapter rod 5 to rotate, the rotating angle of the fan 4 is adjusted, the fan 4 is made to blow air towards the spraying end of the spraying pipe 2, the diffusion distance of the atomized water droplets is increased, and the dust removal treatment range is increased.

[0070] Further, a circular groove is formed in the top surface of the mobile vehicle body 1, a driven gear 32 is connected to the inner wall of the bottom end of the circular groove, the top end of the driven gear 32 is fixedly connected to the rotating plate 6, a fifth driving motor 34 is fixedly connected in the mobile vehicle body 1, a driving gear 33 is fixedly connected to the output shaft of the fifth driving motor 34, and the driving gear 33 is engaged with the driven gear 32.

[0071] The fifth driving motor 34 drives the driving gear 33 to rotate, the driving gear 33 drives the driven gear 32 to rotate, the rotation of the rotating plate 6 is realized, the fan 4 and the spraying pipe 2 are fixedly connected to the rotating plate 6, the relative position between the fan 4 and the spraying pipe 2 is kept stable, the rotating spraying is realized, and the fan 4 and the spraying pipe 2 move synchronously to diffuse the atomized water droplets.

[0072] Further, the bottom end of the mobile vehicle body 1 is fixedly connected with a stop rod 35, one side of the stop rod 35 is provided with a Foma wheel 36, and the Foma wheel 36 selectively rolls on the ground or does not roll on the ground.

[0073] The Foma wheel 36 is adopted to selectively adjust the lifting, when the mobile vehicle body 1 needs to move, the Foma wheel 36 is lifted to roll on the ground, the requirement of the movement of the mobile vehicle body 1 is met, when the spraying dust removal is performed at a fixed point, the Foma wheel 36 is lifted, the mobile vehicle body 1 is fixed by the stop rod 35 abutting against the ground.

[0074] The working principle of the building construction dust removal treatment device is as follows:

[0075] After the mobile vehicle body 1 is moved to the construction site, the Foma wheel 36 is lifted to fix the mobile vehicle body 1 on the ground, the multi-stage telescopic hydraulic cylinder 10 is lifted to lift the adjusting seat 3, the first driving motor 14 rotates the rotating shaft 12, the adapter plate 11 is rotated and unfolded, the pair of spraying pipes 2 are stretched out in the horizontal direction, the spraying pipes 2 are moved away from the adapter plate 11 by the first cylinder 15, the third driving motor 22 rotates the worm 23, the worm 23 is engaged with the pair of worm gears 24, the pair of spraying pipes 2 are unfolded, and the water in the water tank 7 is sent into the spraying pipes 2 by the pump 9 to remove dust in the site.

[0076] In the dust falling process, the second driving motor 19 is started to rotate the reciprocating screw rod 18, the reciprocating screw rod 18 is screwed with the moving plate 17, the moving plate 17 and the limiting column 20 drive the seat 21 to move reciprocatingly, so that the reciprocating movement of the pair of spray pipes 2 is realized, and in the reciprocating movement of the seat 21, the torsion spring 28 on the supporting rod 27 elastically acts to make the spray pipe 2 elastically rotate around the fixed seat 26, so that the spray pipe 2 has a larger spraying range, the fourth driving motor 31 is started to rotate the adapter rod 5, the fan 4 is rotated, the air outlet end of the fan 4 is directed to the spray pipe 2, and the range of the diffused atomized water drops is further improved.

[0077] With the dust falling, the fifth driving motor 34 is started to drive the driving gear 33 to rotate the driven gear 32, the rotating plate 6 is rotated, the spray pipe 2 and the fan 4 are synchronously rotated, and the dust falling range in the dust falling site is realized.

[0078] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0079] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application should fall within the protection scope of the present application.

Claims

1. A construction site dust reduction device, characterized by, Include: Mobile car body; A pair of spray pipes are arranged on the mobile car body, a lifting piece is arranged on the mobile car body, the lifting end of the lifting piece is connected with an adjusting seat, a driving assembly is arranged on the adjusting seat, the driving assembly comprises an adapter plate, one end of the adapter plate is connected with the adjusting seat through a rotating shaft, the other end of the adapter plate away from the adjusting seat is fixedly connected with a first air cylinder, a connecting seat is fixedly connected on the piston end of the first air cylinder, a reciprocating part reciprocates on the connecting seat; The reciprocating part comprises a moving plate, a sliding groove is formed in the connecting seat, the moving plate is slidably connected in the sliding groove, and the moving plate is connected with a pair of spray pipes, a reciprocating screw is connected in the sliding groove, and the moving plate is threadedly connected on the reciprocating screw; One end of the connecting seat away from the first air cylinder is slidably connected with a driving seat, a pair of limiting columns are fixedly connected on the moving plate along the center symmetry, the driving seat is fixedly connected with the moving plate through the limiting columns, a hollow groove is formed in the driving seat, a pair of spray pipes are symmetrically arranged on both sides of the hollow groove, a third driving motor is fixedly connected in the driving seat, and the output shaft of the third driving motor is connected with a pair of spray pipes through a transmission part; The transmission part comprises a worm connected in the hollow groove, the worm is coaxially fixedly connected with the output shaft of the third driving motor, a pair of worm gears are engaged on both sides of the worm, fixed seats are fixedly connected at the ends away from each other of the pair of worm gears, grooves are formed in the fixed seats, one end of the spray pipe extends into the groove, a support rod is arranged on the part of the spray pipe extending into the groove, the support rod is connected with the fixed seat, a torsion spring is arranged around the support rod, and the two ends of the torsion spring are fixedly connected with the support rod and the fixed seat respectively; A fan is arranged on the mobile car body, an adapter rod is connected with the fan, the adapter rod is fixedly connected with the fan, so that the fan rotates relative to the mobile car body, and the air outlet end of the fan faces the spray pipe; A rotating plate is connected on the top surface of the mobile car body, a pair of spray pipes and a fan are arranged on the rotating plate.

2. The construction site dust abatement apparatus of claim 1, wherein: A mounting plate is fixedly connected on one side of the adjusting seat, a first driving motor is fixedly connected on the mounting plate, and the output shaft of the first driving motor is coaxially fixedly connected with the rotating shaft.

3. The construction site dust suppression apparatus of claim 1, wherein Further include: A second driving motor is fixedly connected in the connecting seat, and the output shaft of the second driving motor is coaxially fixedly connected with the reciprocating screw.

4. The construction site dust abatement apparatus of claim 1, wherein: A support rod is fixedly connected through the axis of the worm gear, and the two ends of the support rod are connected with the opposite sides of the inner wall of the hollow groove. A pair of worm gears are symmetrically engaged on both sides of the worm.

5. The construction site dust abatement apparatus of claim 1, wherein: A support is fixedly connected on the top surface of the rotating plate, the two sides of the fan are connected with the support through the adapter rod, a fourth driving motor is fixedly connected on the outer side wall of the support, and the output shaft of the fourth driving motor is fixedly connected with the adjacent adapter rod.

6. The construction site dust abatement apparatus of claim 1, wherein: A circular groove is formed in the top surface of the mobile car body, a driven gear is connected on the inner wall of the bottom end of the circular groove, the top end of the driven gear is fixedly connected with the rotating plate, a fifth driving motor is fixedly connected in the mobile car body, a driving gear is fixedly connected with the output shaft of the fifth driving motor, and the driving gear is engaged with the driven gear.

7. The construction site dust abatement apparatus of claim 1, wherein: The bottom end of the mobile vehicle body is fixedly connected with a resisting rod, and the resisting rod is selectively in rolling contact or not in contact with the ground.

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