Construction site dust prevention device for construction work

Abstract

The utility model relates to a construction site dust prevention device for building engineering belongs to building engineering technical field. This construction site dust prevention device for building engineering, support seat and install the mist gun in the upper portion of support seat, be provided with adjusting mechanism between mist gun and support seat, dustproof mechanism, the dustproof mechanism includes fixedly connected with the fixed cylinder of mist gun water outlet end, a plurality of baffle is provided with in the export of fixed cylinder, be provided with telescopic component between baffle and the inner wall of fixed cylinder, through setting dustproof device, when mist gun starts, dustproof device automatic unfolding, provides passageway for mist gun water outlet end, and when mist gun closes, dustproof device will automatically combine, covers high pressure nozzle and reduces the contact of mist gun inside and outside dust, has reduced the frequency of maintenance to mist gun, has reduced manual intervention, has increased the practicality and durability of device.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a dust prevention device for construction sites in building engineering. Background Technology

[0002] Construction site dust control devices are environmental protection equipment used to suppress construction dust. They mainly include high-pressure mist cannons, spray systems, dust nets, and perimeter spray systems. The mist cannons use high-pressure spray to absorb dust; however, traditional mist cannons have their high-pressure nozzles exposed to the elements, making protection for these nozzles impossible.

[0003] As shown in the reference case "Dust Prevention Device for Construction Sites" (Announcement No. CN219964367U), this utility model increases the coverage of water mist by setting up a swing mechanism and an adjustment mechanism, thereby improving the equipment's efficiency in treating dust at construction sites, increasing the spray distance of water mist, further increasing the coverage of water mist, and improving the applicability of the equipment.

[0004] Although the above-mentioned application can adjust the nozzle through the swing mechanism and the adjustment mechanism, thereby adjusting the coverage range and spray distance of the water mist, the device cannot provide protection for the inside of the fog cannon and the high-pressure nozzle. When the device is left idle for a long time, the nozzle inside the fog cannon will be exposed to the outside world and come into contact with dust for a long time, which may cause nozzle clogging. Utility Model Content

[0005] Therefore, it is necessary to provide a dust prevention device for construction sites to address the problem that the nozzles inside the fog cannon cannot be protected when the device is left idle for a long time.

[0006] Includes: a dust prevention device for construction sites, a support base, and a fog cannon installed on top of the support base, wherein an adjustment mechanism is provided between the fog cannon and the support base;

[0007] A dustproof mechanism, comprising a fixed cylinder fixedly connected to the water outlet of the mist cannon, wherein multiple baffles are provided at the outlet of the fixed cylinder, and a telescopic component is provided between the baffles and the inner wall of the fixed cylinder.

[0008] In one embodiment, a plurality of hinge blocks are fixedly connected to the surface of the fixed cylinder away from the fog cannon, and the baffle is hinged to the inner wall of the hinge blocks.

[0009] In one embodiment, the telescopic assembly includes a positioning rod hinged to the inner wall of the fixed cylinder, and a telescopic rod is provided between the positioning rod and the baffle.

[0010] In one embodiment, one end of the telescopic rod is slidably connected to the inner wall of the positioning rod while the other end is hinged to the baffle, and a spring is fixedly connected between the inner bottom wall of the positioning rod and the positioning rod.

[0011] In one embodiment, the baffle is a quarter-circular plate, and a plurality of the baffles are evenly arranged circumferentially at the end of the fixed cylinder away from the fog cannon.

[0012] In one embodiment, a baffle is fixedly connected to the outlet end of the fog cannon, and the high-pressure nozzle of the fog cannon passes through the baffle, which is cylindrical and conical.

[0013] In one embodiment, a collecting shell is fixedly connected between the fog cannon and the fixed cylinder. The collecting shell is arranged in a cylindrical cone shape, and the high-pressure nozzle is disposed between the partition and the collecting shell.

[0014] In one embodiment, a plurality of casters are provided below the support base, and the plurality of casters are respectively located at the four corners of the support base.

[0015] In one embodiment, the air inlet end of the fog cannon is equipped with louvers, and dustproof cotton is provided between the louvers and the fog cannon.

[0016] Beneficial effects

[0017] 1. By setting up a dustproof device, when the fog cannon is started, the dustproof device will automatically open under the action of the fan to provide a water spray channel for the water outlet of the fog cannon; when the fog cannon is turned off, the dustproof device will automatically close to cover the air outlet of the fog cannon, thereby avoiding the clogging problem caused by the nozzle inside the fog cannon coming into contact with dust for a long time when the device is not in use.

[0018] 2. By setting up baffles and a collecting shell to guide the water flow atomized by the high-pressure nozzle, the water flow can be effectively diverted and guided. The water mist is collected and sprayed out, which improves the dust suppression effect, reduces the contact between the water mist and the telescopic components, improves the utilization rate of atomized water, and extends the service life of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the working state of this utility model;

[0022] Figure 3 This is an exploded view of the dustproof mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram showing the connection between the baffle and the fixing plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the telescopic mechanism of this utility model.

[0025] Figure label:

[0026] 100. Support base; 200. Fog cannon; 300. Adjustment mechanism; 400. Dustproof mechanism; 410. Fixing cylinder; 420. Baffle; 430. Partition; 431. Collection shell; 440. Telescopic assembly; 441. Positioning rod; 442. Telescopic rod; 443. Spring; 450. Hinge block; 460. Louver; 461. Dustproof cotton. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The following is combined Figures 1-5 This utility model describes a dust prevention device for construction sites in building engineering.

[0029] In one embodiment, a construction site dust prevention device for building engineering includes: a support base 100 and a fog cannon 200 installed above the support base 100, wherein an adjustment mechanism 300 is provided between the fog cannon 200 and the support base 100.

[0030] The dustproof mechanism 400 includes a fixed cylinder 410 fixedly connected to the water outlet of the fog cannon 200. Multiple baffles 420 are provided at the outlet of the fixed cylinder 410, and a telescopic component 440 is provided between the baffles 420 and the inner wall of the fixed cylinder 410.

[0031] The main structure of the fog cannon 200 is as follows:

[0032] Fan: Installed at the rear of the fog cannon 200, it generates a high-speed airflow by rotating the fan blades to spray atomized water droplets over a long distance;

[0033] Spray assembly: Composed of a water pump, pipeline and nozzles. The water pump pressurizes the water in the water tank and delivers it to the high-pressure nozzles, where it is atomized into water mist to enhance the dust adsorption effect.

[0034] Water tank: Installed inside the base, used to store water for dust suppression;

[0035] Control box: integrates electrical control system, regulates fan speed, 300 oscillation mechanism and water pump pressure;

[0036] The components of the adjustment mechanism 300 are as follows:

[0037] Slewing support bearing: Installed between the fog cannon 200 and the base, it is used to bear the weight of the whole machine and provide horizontal rotation support;

[0038] Horizontal drive motor: Drives the fog cannon 200 to rotate horizontally through a reducer meshing with a slewing bearing;

[0039] Pitch-swing mechanism: Composed of a hinged bracket and an electric push rod, it controls the pitch angle of the nozzle.

[0040] like Figure 3 , Figure 4 and Figure 5 As shown, a plurality of hinge blocks 450 are fixedly connected to the surface of the fixed cylinder 410 away from the fog cannon 200, and the baffle 420 is hinged to the inner wall of the hinge block 450. The telescopic assembly 440 includes a positioning rod 441 hinged to the inner wall of the fixed cylinder 410, and a telescopic rod 442 is provided between the positioning rod 441 and the baffle 420. One end of the telescopic rod 442 is slidably connected to the inner wall of the positioning rod 441, and the other end is hinged to the baffle 420. A spring 443 is fixedly connected between the inner bottom wall of the positioning rod 441 and the positioning rod 441. The baffle 420 is a quarter-circular plate, and a plurality of baffles 420 are evenly arranged circumferentially at the end of the fixed cylinder 410 away from the fog cannon 200. A baffle 430 is fixedly connected to the outlet end of the fog cannon 200, and the high-pressure nozzle of the fog cannon 200 passes through the baffle 430, which is cylindrical and conical. A collecting shell 431 is fixedly connected between the fog cannon 200 and the fixed cylinder 410. The collecting shell 431 is arranged in a cylindrical cone shape, and the high-pressure nozzle is arranged between the partition plate 430 and the collecting shell 431.

[0041] In this embodiment, half of the hinge block 450 is suspended and half is fixed to the surface of the fixed cylinder 410. Meanwhile, a connecting block is provided at the top of the baffle 420, and the baffle 420 is hinged to the suspended part of the hinge block 450 via the connecting block. When the baffle 420 is pushed open by the airflow of the fan, the baffle 420 drives the telescopic rod 442 to slide within the positioning rod 441 and stretches the spring 443. When the fan is turned off, the spring 443, which is in the extended state, begins to contract and drives the telescopic rod 442 to reset within the positioning rod 441. The telescopic rod 442 drives the baffle 420 to reset, sealing the air outlet of the fog cannon 200. Multiple sets of limiting blocks are fixedly connected to the inner wall of the fixed cylinder 410, and a set of limiting blocks is also provided near the center of the inner side of the baffle 420. The positioning rod 441 and the telescopic rod 442 are respectively connected to the inner wall of the fixed cylinder 410 and... Each set of limiting blocks on the inner side of the baffle 420 is hinged; the high-pressure nozzle of the mist cannon 200 is inclined towards the centerline of the fan, and the curvature of the baffle 420 and the collecting shell 431 is consistent with the inclination angle of the high-pressure nozzle. When the atomized water is sprayed from the high-pressure nozzle, it will spray directly into the center of the collecting shell 431. Since the water sprayed from the nozzle is atomized water, a small amount of water will adhere to the inner wall of the collecting shell 431. This part of the water will flow along the collecting shell 431 under the action of gravity and wind. Some of the water will fall into the center of the collecting shell 431 and be blown out by the fan, while another small part of the water will adhere between the collecting shell 431 and the baffle 430. Since the baffle 430 is fixedly connected to the air outlet of the fan, this part of the water will be temporarily stored between the baffle 430 and the collecting shell 431 and will not flow into the interior of the mist cannon 200. Most of the water will be directly dispersed from the center of the fixed cylinder 410 under the action of the fan and come into contact with the dust to complete the dust suppression work.

[0042] It should be noted that the adjustment mechanisms 300 in this device are all located at the outlet end of the fog cannon 200 and are all located on the outside of the fog cannon 200. Therefore, they will not affect the installation of the internal components of the fog cannon 200. At the same time, this device provides protection for the inside of the fog cannon 200 after it is turned off. When the fog cannon 200 is working, the baffle 420 will increase its opening angle as the wind speed of the fan increases. At the same time, when this device is used to cool the construction site, multiple devices work together to reduce dust. The baffle 420 may partially block the atomized water, but this partial obstruction will not have any negative impact on the overall dust reduction effect of the device.

[0043] like Figure 1 As shown, multiple casters are provided below the support base 100, and the multiple casters are respectively located at the four corners of the support base 100; a louver 460 is installed at the air inlet end of the fog cannon 200, and a dustproof cotton 461 is provided between the louver 460 and the fog cannon 200.

[0044] In this embodiment, the casters in this device have a locking mechanism. When it is necessary to move the device, the casters need to be unlocked, and when it is necessary to fix the device, the casters can be locked directly through the locking mechanism to begin preparation work. The louvers 460 are adjustable louvers 460, and the opening and closing angle can be adjusted according to the environment of the construction site. The dustproof cotton 461 is multi-level dustproof cotton 461, and the aperture of the louvers 460 gradually decreases towards the fog cannon 200 to improve filtration efficiency and balance wind resistance. At the same time, the material of the dustproof cotton 461 is... Polyester fiber coating is used to reduce clogging caused by water mist. The louvers 460 and dustproof cotton 461 effectively protect the air inlet of the fog cannon 200, reducing the impact of dust on the nozzle during operation. With the cooperation of louvers 460 and dustproof cotton 461, a small amount of dust may enter the interior of the fog cannon 200, but this part of the dust will be blown out of the device by the fan. Due to the presence of baffle 430, this part of the dust will not come into contact with the nozzle.

[0045] Working principle: Move this device to the preset position, then adjust the angle of the fog cannon 200 to a suitable position through the adjustment mechanism 300, and then start the fog cannon 200. The fan of the fog cannon 200 will start first, and the airflow blown by the fan will apply a thrust to the baffle 420. The baffle 420 will expand outward due to the thrust of the airflow, and the telescopic component 440 will expand simultaneously. Then the high-pressure nozzle will start, atomize the water flow and spray it out through the nozzle.

[0046] The atomized water will be gathered by the baffle 430 and the collecting shell 431 and move towards the center of the fan. Then it will be blown out by the airflow to reduce dust in the external environment. After the dust reduction is completed, the high-pressure nozzle will be closed first and then the fan will be closed. After the fan is closed, the thrust on the baffle 420 will disappear, and the telescopic component 440 will start to reset and drive the baffle 420 to reset. This will cause multiple baffles 420 to reset synchronously and block the outlet of the fixed cylinder 410, thereby protecting the inside of the fog cannon 200.

[0047] It should be noted that the support base 100, louver 460, dustproof cotton 461, fog cannon 200, spring 443, and adjustment mechanism 300 mentioned above are all components with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the fog cannon 200 and adjustment mechanism 300 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dust prevention device for construction sites, characterized in that, include: A support base (100) and a fog cannon (200) installed on the support base (100), wherein an adjustment mechanism (300) is provided between the fog cannon (200) and the support base (100); A dustproof mechanism (400) includes a fixed cylinder (410) fixedly connected to the water outlet of the fog cannon (200). Multiple baffles (420) are provided at the outlet of the fixed cylinder (410), and a telescopic component (440) is provided between the baffles (420) and the inner wall of the fixed cylinder (410).

2. The dust prevention device for construction sites in building engineering according to claim 1, characterized in that, The fixed cylinder (410) has a plurality of hinge blocks (450) fixedly connected to the end surface away from the fog cannon (200), and the baffle (420) is hinged to the inner wall of the hinge block (450).

3. The dust prevention device for construction sites in building engineering according to claim 1, characterized in that, The telescopic assembly (440) includes a positioning rod (441) hinged to the inner wall of the fixed cylinder (410), and a telescopic rod (442) is provided between the positioning rod (441) and the baffle (420).

4. The dust prevention device for construction sites in building engineering according to claim 3, characterized in that, One end of the telescopic rod (442) is slidably connected to the inner wall of the positioning rod (441), while the other end is hinged to the baffle (420). A spring (443) is fixedly connected between the inner bottom wall of the positioning rod (441) and the positioning rod (441).

5. The dust prevention device for construction sites in building engineering according to claim 1, characterized in that, The baffle (420) is a quarter-circular plate, and multiple baffles (420) are evenly arranged in a circle at one end of the fixed cylinder (410) away from the fog cannon (200).

6. The dust prevention device for construction sites in building engineering according to claim 1, characterized in that, The outlet end of the fog cannon (200) is fixedly connected to a partition (430), and the high-pressure nozzle of the fog cannon (200) passes through the partition (430). The partition (430) is cylindrical and conical.

7. The dust prevention device for construction sites in building engineering according to claim 1, characterized in that, A collecting shell (431) is fixedly connected between the fog cannon (200) and the fixed cylinder (410). The collecting shell (431) is arranged in a cylindrical cone shape. The high-pressure nozzle of the fog cannon (200) is arranged between the partition plate (430) and the collecting shell (431).

8. The dust prevention device for construction sites according to claim 1, characterized in that, Multiple casters are provided below the support base (100), and the multiple casters are respectively located at the four corners of the support base (100).

9. The dust prevention device for construction sites in building engineering according to claim 1, characterized in that, The air inlet end of the fog cannon (200) is equipped with a louver (460), and a dustproof cotton (461) is provided between the louver (460) and the fog cannon (200).

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