Dust falling device applied to municipal construction site

Abstract

The utility model belongs to the technical field of dust falling devices, and particularly relates to a dust falling device applied to a municipal construction site, which comprises a rack, moving wheels, a case, a telescopic support column, a rotating bracket, an air duct and a spraying module, the telescopic support column comprises an outer support column, and the outer support column is rotatably mounted in the case; the bottom end of the square inner supporting column is located in the square cavity to form a telescopic structure, and a threaded hole is machined in the square inner supporting column; the telescopic power mechanism is used for driving the square inner supporting column to ascend and descend, and the telescopic power mechanism comprises a threaded lead screw, a worm gear, a worm and a second driving motor; according to the utility model, the telescopic supporting column is designed into a telescopic structure, the telescopic length of the telescopic supporting column can be adjusted through the telescopic power mechanism so as to adjust the working height of the air duct, and the adjustment of the horizontal angle and the vertical pitching angle of the air duct is matched, so that the atomization range is greatly expanded, and different working environments are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust reduction devices, and particularly relates to a dust reduction device applied to a municipal construction site. Background Art

[0002] During the process of municipal construction, the amount of dust at the construction site is relatively large. Usually, a fog cannon machine is used to reduce dust at the construction site. When the fog cannon machine works, it can atomize water into very fine water droplets, which can better penetrate into the air and come into contact with the dust in the air. After the dust absorbs water, it falls back to the ground under the influence of gravity. Since the water droplets sprayed by the fog cannon machine are fine, they can stay in the air for a long time, thus increasing the contact time with the dust.

[0003] There are various models of fog cannon machines, including small, medium, and large models to meet different dust removal requirements and working environments. At the same time, different specifications of atomizing nozzles will be used for different working environments.

[0004] It is retrieved that in the prior art, the Chinese utility model patent with the authorization announcement number of CN221287266U discloses "a dust reduction device applied to a municipal construction site", which includes a fog cannon machine body. A fog cannon machine gun body is installed on the slewing table of the fog cannon machine body. It also includes a support platform, a base, a water supply pipe, and a high-pressure nozzle module. The support platform is fixed on the slewing table, and the fog cannon machine gun body is fixed on the top surface of the support platform; the base is fixed on the slewing table. The water supply pipe includes a pipe body, and the high-pressure nozzle module includes an orifice plate, and a plurality of high-pressure nozzles are inserted on the orifice plate.

[0005] The dust reduction devices in the prior art including the above-mentioned ones, although they can meet general usage requirements, cannot adjust the vertical height of the air duct, resulting in a limited atomized dust reduction range and certain usage limitations.

[0006] To solve the above problems, a dust reduction device applied to a municipal construction site is proposed in this application. Utility Model Content

[0007] To solve the above problems existing in the prior art, the utility model provides a dust reduction device applied to a municipal construction site, which has the characteristics of convenient use, easy adjustment, and wide application range.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A dust reduction device applied to a municipal construction site includes a frame, moving wheels fixed at the four corners of the bottom surface of the frame, a chassis fixed on the top surface of the frame, a telescopic support pillar rotatably installed in the chassis, a rotating bracket fixed at the top end of the telescopic support pillar, an air duct rotatably installed on the rotating bracket, and a spray module fixed at the port of the air duct. The telescopic support pillar includes:

[0009] An outer support pillar, which is rotatably installed in the chassis, and a square cavity is machined in the outer support pillar;

[0010] A square inner support pillar, the bottom end of the square inner support pillar is located in the square cavity to form a telescopic structure, and a threaded hole is machined in the square inner support pillar;

[0011] A telescopic power mechanism, which is used to drive the square inner support pillar to lift, and the telescopic power mechanism includes a threaded screw rod, a worm gear, a worm and a second driving motor. The threaded screw rod is rotatably installed in the square cavity, and the threaded screw rod is screwed into the threaded hole by a threaded engagement method. The worm gear is fixed on the threaded screw rod, the worm is rotatably installed in the square cavity and meshes with the worm gear, and the second driving motor is fixed on the outer wall of the outer support pillar to drive the worm to rotate.

[0012] As a preferred technical solution of the present invention, the outer wall of the square inner support pillar abuts against the inner wall of the square cavity.

[0013] As a preferred technical solution of the present invention, the axial length of the threaded screw rod is less than the axial length of the outer support pillar.

[0014] As a preferred technical solution of the present invention, it further includes:

[0015] Fixed shafts, two of the fixed shafts are symmetrically fixed on the outer wall of the air duct, and the fixed shafts are rotatably connected to the rotary bracket;

[0016] A flipping power mechanism, which is drivably connected to the air duct and is used to drive the air duct to flip.

[0017] As a preferred technical solution of the present invention, the flipping power mechanism includes:

[0018] A first driving motor, which is fixed on the top of the frame;

[0019] A first turntable, which is fixed on the output shaft of the first driving motor;

[0020] A first connecting shaft, which is fixed at an eccentric position of the first turntable;

[0021] A second turntable, which is fixed on the fixed shaft;

[0022] A second connecting shaft, which is fixed at an eccentric position of the second turntable;

[0023] Connecting plate, one end of the connecting plate is pivotally connected to the second connecting shaft, and the other end is pivotally connected to the first connecting shaft.

[0024] As a preferred technical solution of the present invention, it further includes a rotary power mechanism, and the rotary power mechanism includes:

[0025] The third turntable, the third turntable is fixed to the bottom end of the outer support column, and the third turntable is rotationally connected to the frame by a bearing;

[0026] The third connecting shaft, the third connecting shaft is fixed at an eccentric position of the third turntable;

[0027] The electric push rod, the electric push rod is hinged to the frame, and the piston rod of the electric push rod is pivotally connected to the third connecting shaft.

[0028] As a preferred technical solution of the present invention, a water tank and a centrifugal pump fixed on the frame are also distributed in the chassis. The water inlet of the centrifugal pump is connected to the water tank by a hose, and the water outlet is connected to the spray module by a hose.

[0029] As a preferred technical solution of the present invention, a fan is fixed in the air duct.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] In the present invention, the telescopic support column is designed as a telescopic structure. Through the telescopic power mechanism, the telescopic length of the telescopic support column can be adjusted to adjust the working height of the air duct. Combined with the adjustment of the horizontal angle and the vertical pitch angle of the air duct, the atomization range is greatly improved, meeting different working environments.

[0032] Other additional advantages and beneficial effects of this application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of this application. Description of the Drawings

[0033] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0034] Figure 1 is a schematic structural diagram of the present invention;

[0035] Figure 2 is an axonometric structural diagram of the present invention;

[0036] Figure 3 is for the present invention Figure 2 is an enlarged structural diagram of the flipping power mechanism in

[0037] Figure 4 For the rotating power mechanism amplification structure diagram in the present utility model Figure 2 ;

[0038] Figure 5 For the sectional structure diagram of the telescopic support column in the present utility model

[0039] Figure 6 For the present utility model Figure 5 ; the telescopic power mechanism amplification structure diagram thereof.

[0040] In the figure: 1, frame; 2, chassis; 3, moving wheels; 4, rotating bracket; 5, air duct; 51, fixed shaft; 6, spray module; 7, telescopic support column; 71, outer support column; 711, square cavity; 72, square inner support column; 721, threaded hole; 8, flipping power mechanism; 81, first driving motor; 82, first turntable; 83, first connecting shaft; 84, second turntable; 85, second connecting shaft; 86, connecting plate; 9, rotating power mechanism; 91, third turntable; 92, third connecting shaft; 93, electric push rod; 10, telescopic power mechanism; 101, threaded lead screw; 102, worm gear; 103, worm; 104, second driving motor. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0042] Please refer to Figures 1-6 , the present utility model provides the following technical solutions: A dust reduction device applied to a municipal construction site, including a frame 1, moving wheels 3 fixed at the four corners of the bottom surface of the frame 1, a chassis 2 fixed on the top surface of the frame 1, a telescopic support column 7 rotatably installed in the chassis 2, a rotating bracket 4 fixed at the top end of the telescopic support column 7, an air duct 5 rotatably installed on the rotating bracket 4, and a spray module 6 fixed at the port of the air duct 5. The telescopic support column 7 includes: an outer support column 71, a square inner support column 72, and a telescopic power mechanism 10.

[0043] It should be noted that the dust reduction device of the present utility model further includes a water tank, a centrifugal pump and a fan (not shown in the figure). The water tank and the centrifugal pump are both fixed on the frame 1, the fan is fixed in the air duct 5, and the water inlet of the centrifugal pump is connected to the water tank by a hose, and the water outlet is connected to the spray module 6 by a hose. The dust reduction device can be powered by mains electricity or a diesel generator. The centrifugal pump pumps the water in the water tank and sprays it out in an atomized state from the spray module 6. The fan blows the water mist, which can improve the atomization range. The water tank, the centrifugal pump and the fan are conventional settings of a fog cannon machine in the prior art and will not be elaborated herein.

[0044] Further, as shown by Figure 1 , Figure 2 , Figure 5 and Figure 6 in this embodiment, the outer support column 71 is rotatably installed in the chassis 2, and a square cavity 711 is machined in the outer support column 71. The bottom end of the square inner support column 72 is located in the square cavity 711 to form a telescopic structure, and a threaded hole 721 is machined in the square inner support column 72. The telescopic power mechanism 10 is used to drive the square inner support column 72 to lift and lower. The telescopic power mechanism 10 includes a threaded lead screw 101, a worm gear 102, a worm 103 and a second driving motor 104. The threaded lead screw 101 is rotatably installed in the square cavity 711, and the threaded lead screw 101 is screwed into the threaded hole 721 by a threaded engagement method. The worm gear 102 is fixed on the threaded lead screw 101. The worm 103 is rotatably installed in the square cavity 711 and meshes with the worm gear 102. The second driving motor 104 is fixed on the outer wall of the outer support column 71 to drive the worm 103 to rotate. After adopting the above scheme, during use, the second driving motor 104 can be started to drive the worm 103 to rotate. The worm 103 drives the worm gear 102 to rotate under the action of threaded engagement, so that the threaded lead screw 101 rotates. Under the action of threaded engagement, the square inner support column 72 lifts and lowers to adjust the telescopic length of the telescopic support column 7 and adjust the working height of the air duct 5.

[0045] It should be noted that both the square cavity 711 and the square inner support column 72 are square structures, which can prevent the threaded lead screw 101 from driving the square inner support column 72 to rotate when rotating.

[0046] Preferably, as shown by Figure 1 , Figure 2 , Figure 5 and Figure 6 in this embodiment, the outer wall of the square inner support column 72 abuts against the inner wall of the square cavity 711. After adopting the above design, the stability of the connection between the square inner support column 72 and the outer support column 71 can be further improved.

[0047] Preferably, as shown by Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, the axial length of the threaded lead screw 101 is less than the axial length of the outer support 71. After adopting the above design, the safety of the connection between the square inner support 72 and the outer support 71 can be further improved. In fact, during use, the top end of the square inner support 72 can be restricted by the chassis 2 to ensure that the square inner support 72 moves within a safe range and prevent the square inner support 72 from separating from the threaded lead screw 101 when it moves to the highest point.

[0048] In the present utility model, the axial length of the threaded lead screw 101 being less than the axial length of the outer support 71 is a design based on extreme conditions. With the above design, even if the square inner support 72 separates from the threaded lead screw 101 when it moves to the highest point and the threaded lead screw 101 continues to rotate while the square inner support 72 no longer moves, only the square inner support 72 cannot move and it will not separate from the outer support 71. Therefore, the square inner support 72 will not have an accident of tipping over, ensuring safety in extreme conditions.

[0049] Optionally, as Figures 1-3 shown, in this embodiment, it further includes: a fixed shaft 51 and a flipping power mechanism 8. The two fixed shafts 51 are symmetrically fixed on the outer wall of the air duct 5, and the fixed shaft 51 is rotatably connected to the rotating bracket 4. The flipping power mechanism 8 is drivably connected to the air duct 5 and is used to drive the air duct 5 to flip. After adopting the above solution, during use, the flipping power mechanism 8 can be started to drive the air duct 5 to flip and adjust the pitching angle of the air duct 5 to meet different working environments.

[0050] Optionally, as Figures 1-3 shown, in this embodiment, the flipping power mechanism 8 includes: a first driving motor 81, a first turntable 82, a first connecting shaft 83, a second turntable 84, a second connecting shaft 85, and a connecting plate 86. The first driving motor 81 is fixed on the top of the frame 1, the first turntable 82 is fixed on the output shaft of the first driving motor 81, the first connecting shaft 83 is fixed at an eccentric position of the first turntable 82, the second turntable 84 is fixed on the fixed shaft 51, the second connecting shaft 85 is fixed at an eccentric position of the second turntable 84, one end of the connecting plate 86 is pivotally connected to the second connecting shaft 85, and the other end is pivotally connected to the first connecting shaft 83. After adopting the above solution, during use, the first driving motor 81 is started to drive the first turntable 82 to rotate. The first turntable 82 drives the first connecting shaft 83 to perform a circular motion. The first connecting shaft 83 drives the connecting plate 86 to swing and move. The connecting plate 86 drives the second turntable 84 to reciprocally flip through the second connecting shaft 85 and drives the air duct 5 to flip through the fixed shaft 51 to adjust the pitching angle of the air duct 5.

[0051] Optionally, as Figure 1 、 Figure 2 and Figure 4As shown, in this embodiment, it further includes a rotary power mechanism 9, and the rotary power mechanism 9 includes: a third turntable 91, a third connecting shaft 92, and an electric push rod 93. The third turntable 91 is fixed to the bottom end of the outer support column 71, and the third turntable 91 is rotationally connected to the frame 1 by means of a bearing. The third connecting shaft 92 is fixed at an eccentric position of the third turntable 91. The electric push rod 93 is hinged to the frame 1, and the piston rod of the electric push rod 93 is pivotally connected to the third connecting shaft 92. After adopting the above solution, during use, the electric push rod 93 is started to drive the third turntable 91 to rotate. The third turntable 91 drives the telescopic support column 7 to rotate, and the telescopic support column 7 drives the rotary bracket 4 to rotate, so as to adjust the horizontal angle of the air duct 5 to meet different working environments.

[0052] It should be noted that the first driving motor 81, the electric push rod 93, and the second driving motor 104 are all commercially available conventional devices with built-in power switches. Those skilled in the art can make conventional selections according to actual needs. Their working principles are common knowledge well-known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated in detail herein.

[0053] The circuit connection involved in the present utility model is a conventional means adopted by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, belonging to the prior art widely used.

[0054] The components not described in detail herein are prior art.

[0055] The working principle and usage process of the present utility model: For the dust reduction device of the present utility model, first move the dust reduction device to the working location, then connect the power supply to the dust reduction device, pump the water in the water tank through the centrifugal pump, and spray it in an atomized state from the spray module 6;

[0056] When necessary, start the electric push rod 93 to drive the third turntable 91 to rotate. The third turntable 91 drives the telescopic support column 7 to rotate, and the telescopic support column 7 drives the rotary bracket 4 to rotate, so as to adjust the horizontal angle of the air duct 5;

[0057] The first driving motor 81 can also be started to drive the first turntable 82 to rotate. The first turntable 82 drives the first connecting shaft 83 to perform a circular motion. The first connecting shaft 83 drives the connecting plate 86 to swing and move. The connecting plate 86 drives the second turntable 84 to reciprocally flip through the second connecting shaft 85, and drives the air duct 5 to flip through the fixed shaft 51 to adjust the pitching angle of the air duct 5;

[0058] The second driving motor 104 can also be started to drive the worm 103 to rotate. Under the action of thread engagement, the worm 103 drives the worm wheel 102 to rotate, so that the threaded lead screw 101 rotates. Under the action of thread engagement, the square inner support column 72 moves up and down to adjust the telescopic length of the telescopic support column 7, so as to adjust the working height of the air duct 5, greatly improving the atomization range and meeting different working environments.

[0059] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A dust reduction device applied to a municipal construction site, comprising a frame (1), moving wheels (3) fixed to the four corners of the bottom surface of the frame (1), a chassis (2) fixed to the top surface of the frame (1), a telescopic support column (7) rotatably installed in the chassis (2), a rotating bracket (4) fixed to the top end of the telescopic support column (7), a wind tube (5) rotatably installed on the rotating bracket (4), and a spray module (6) fixed to the port of the wind tube (5), characterized in that, The telescopic support column (7) includes: An outer support column (71) which is rotatably installed in the chassis (2), and a square cavity (711) is machined in the outer support column (71); A square inner support column (72) whose bottom end is located in the square cavity (711) to form a telescopic structure, and a threaded hole (721) is machined in the square inner support column (72); A telescopic power mechanism (10) which is used to drive the square inner support column (72) to move up and down, and the telescopic power mechanism (10) includes a threaded lead screw (101), a worm gear (102), a worm (103) and a second driving motor (104). The threaded lead screw (101) is rotatably installed in the square cavity (711), and the threaded lead screw (101) is screwed into the threaded hole (721) by a threaded engagement method. The worm gear (102) is fixed on the threaded lead screw (101). The worm (103) is rotatably installed in the square cavity (711) and meshes with the worm gear (102). The second driving motor (104) is fixed to the outer wall of the outer support column (71) to drive the worm (103) to rotate.

2. The dust reduction device applied to the municipal construction site according to claim 1, characterized in that: The outer wall of the square inner support column (72) abuts against the inner wall of the square cavity (711).

3. The dust reduction device applied to the municipal construction site according to claim 1 is characterized in that: The axial length of the threaded lead screw (101) is less than the axial length of the outer support column (71).

4. A dust reduction device applied to a municipal construction site according to claim 1, characterized in that: It further includes: Fixed shafts (51), two of the fixed shafts (51) are symmetrically fixed to the outer wall of the air duct (5), and the fixed shafts (51) are rotatably connected to the rotary bracket (4); A flipping power mechanism (8) which is drivably connected to the air duct (5) and is used to drive the air duct (5) to flip.

5. The dust reduction device applied to the municipal construction site according to claim 4, characterized in that: The flipping power mechanism (8) includes: A first driving motor (81) which is fixed to the top of the frame (1); A first turntable (82) which is fixed on the output shaft of the first driving motor (81); A first connecting shaft (83) which is fixed at an eccentric position of the first turntable (82); A second turntable (84) which is fixed on the fixed shaft (51); A second connecting shaft (85) which is fixed at an eccentric position of the second turntable (84); A connecting plate (86) whose one end is pivotally connected to the second connecting shaft (85) and the other end is pivotally connected to the first connecting shaft (83).

6. The dust reduction device applied to the municipal construction site according to claim 1, characterized in that: It further includes a rotary power mechanism (9), and the rotary power mechanism (9) includes: A third turntable (91) which is fixed to the bottom end of the outer support column (71), and the third turntable (91) is rotatably connected to the frame (1) by a bearing; A third connecting shaft (92) which is fixed at an eccentric position of the third turntable (91); Electric push rod (93), the electric push rod (93) is hinged to the frame (1), and the piston rod of the electric push rod (93) is pivotally connected to the third connecting shaft (92).

7. The dust reduction device applied to the municipal construction site according to claim 1, characterized in that: Inside the chassis (2), there is also a water tank and a centrifugal pump fixed on the frame (1). The water inlet of the centrifugal pump is connected to the water tank by a hose, and the water outlet is connected to the spray module (6) by a hose.

8. A dust reduction device applied to a municipal construction site according to claim 1, characterized in that: A fan is fixed inside the air duct (5).

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