Dust falling device for earthwork construction

Abstract

The utility model relates to a dust falling device for earthwork construction belongs to earthwork construction technical field, the dust falling device for earthwork construction, include: water spraying mechanism and protection mechanism, through setting up protection mechanism outside the spray head, the outer movable cover of protection mechanism inside is slidably arranged in the outside of the inner fixed cover fixedly arranged in the bottom of mounting bracket, when the wind of construction site is bigger, utilize the movable arm drive mounting bracket to move to the specified dust falling area, then, the outer movable cover slides to the inside of inner fixed cover, the water mist that the spray head sprays is gathered, realizes the dust falling of specified area to reduce the influence of wind force water mist, simultaneously through adjusting the position of outer movable cover, so as to limit the spraying range of spray head when the outer movable cover slides to the outside of inner fixed cover, then, realizes the dust falling of concentration, when the outer movable cover moves out the outside of inner fixed cover, then, the cover body is expanded to realize large area covering, thereby avoids the waste of water flow or dust falling area omission.

Description

Technical Field

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

[0002] During earthwork construction, the excavation or backfilling of earth and stone will generate a large amount of soil and dust. These particles will be released into the air, resulting in a harsh construction environment and causing serious harm to the health of construction workers.

[0003] Currently, dust suppression devices are widely used in the industry to reduce the amount of dust in the air in order to improve the air quality of the construction environment.

[0004] Because the dust suppression device is set up in the open at the construction site, the dust suppression range of the water mist sprayed by the internal nozzles is easily affected by the external wind when it is used at the construction site, resulting in unstable dust suppression effect and failure to cover the designated area well. Utility Model Content

[0005] Therefore, it is necessary to provide a dust suppression device for earthwork construction to address the problem that the dust suppression range of the water mist sprayed by the internal nozzles is easily affected by external wind when the dust suppression device is used on the construction site, resulting in unstable dust suppression effect and failure to properly cover the designated area.

[0006] A dust suppression device for earthwork construction includes: a mobile track wheel and a support frame, wherein the support frame is disposed between two sets of mobile track wheels and a boom is disposed in the middle of the support frame; A water spraying mechanism includes a water tank and a nozzle, wherein a water pump is installed on the top of the water tank, and the nozzle is connected to the water pump through a pipe; A protective mechanism is provided at the end of the boom to protect the nozzle. The protective mechanism includes an outer movable cover. The end of the boom is fixedly connected to the mounting frame. Two sets of inner fixed covers are provided on the bottom surface of the mounting frame near the center of the mounting frame, with the midpoint of the mounting frame as the axis of symmetry. The outer movable cover is slidably sleeved on the outside of the two sets of inner fixed covers. The bottom surface of the mounting bracket, located inside the outer movable cover, is equipped with first scrapers for cleaning water droplets from the inner wall of the outer movable cover.

[0007] In one embodiment, the first scraper is disposed at the far end of the two sets of inner fixing covers, and the end of the first scraper is slidably connected to the inner wall of the outer movable cover, and the first scraper and the inner fixing cover do not contact each other.

[0008] In one embodiment, two sets of inner fixing covers are fixedly disposed on the bottom surface of the mounting frame. Limiting grooves are provided at both ends of the inner wall where the outer movable cover and the inner fixing cover are inserted. Protrusions are provided on the side walls of the far end of the two sets of inner fixing covers. The protrusions are slidably connected to the inner wall of the limiting grooves. The ends of the limiting grooves are not connected to the outer side walls of the outer movable cover.

[0009] In one embodiment, the adjacent end sidewalls of the two sets of outer movable covers are provided with a second scraper for scraping and cleaning water droplets from the inner wall of the inner fixed cover.

[0010] In one embodiment, the bottom surface of the mounting bracket has grooves on both sides of the nozzle, and a bidirectional threaded rod is rotatably installed inside one of the grooves. The end of the bidirectional threaded rod passes through the side wall of the mounting bracket and is keyed to the output shaft of the motor located on the outer side wall of the mounting bracket.

[0011] In one embodiment, a guide rod is fixedly installed inside another of the slides, and sliders are sleeved inside both sets of slides outside the bidirectional threaded rod and the guide rod. The bottom surface of the sliders is fixedly connected to the top surface of the corresponding outer movable cover below.

[0012] In one embodiment, a rain cover for protecting the motor is provided on the side wall of the mounting bracket above the motor.

[0013] In one embodiment, a base is provided at the bottom of the water tank, and a cushioning pad is provided on the bottom surface of the base that contacts the surface of the support frame. A cab is provided above the support frame on the side of the boom.

[0014] Beneficial effects 1. The above-mentioned dust suppression device, by setting a protective mechanism on the outside of the nozzle, has an outer movable cover inside the protective mechanism that slides onto the outside of an inner fixed cover fixed at the bottom of the mounting frame. When the wind is strong at the construction site, the mounting frame is moved to the designated dust suppression area by using the boom to drive it. The outer movable cover is then slid into the inner fixed cover to concentrate the water mist sprayed from the nozzle, so that the sprayed water mist is covered by the outer movable cover to suppress dust in the designated area, thereby reducing the impact of wind and water mist. At the same time, by adjusting the position of the outer movable cover, the spraying range of the nozzle can be limited. When the outer movable cover slides to the outside of the inner fixed cover, concentrated dust suppression is achieved. When the outer movable cover moves out of the outside of the inner fixed cover, the cover is expanded to achieve large-area coverage, thereby avoiding water waste or omission of dust suppression areas. 2. The dust suppression device described above has a first scraper installed on the bottom surface of the mounting frame on the side farther from the two sets of inner fixed covers. When the outer movable cover moves out of the inner fixed cover, the first scraper scrapes and cleans the water mist and mud formed by the dust on the construction site adhering to the inner wall of the outer movable cover when it is outside the inner fixed cover, thus preventing the mud from solidifying and accumulating on the inner wall of the outer movable cover and hindering the spray. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a schematic diagram of the outer movable cover of this utility model in its unfolded state. Figure 3 This is a cross-sectional view of the mounting bracket of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the outer movable cover and the inner fixed cover of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0017] Figure label: 100. Mobile track wheel; 200. Water spraying mechanism; 300. Protective mechanism; 101. Support frame; 102. Cab; 103. Boom; 201. Water tank; 202. Base; 203. Nozzle; 204. Water pump; 301. Outer movable cover; 302. Inner fixed cover; 303. Mounting bracket; 304. Rain cover; 305. Motor; 306. Double-ended threaded rod; 307. Guide rod; 308. Slider; 309. Slide groove; 310. First scraper; 311. Protrusion; 312. Limiting groove; 313. Second scraper. Detailed Implementation

[0018] 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.

[0019] The following is combined with Figures 1-5 This invention describes a dust suppression device for earthwork construction.

[0020] In one embodiment, a dust suppression device for earthwork construction includes: mobile tracked wheels 100 and a support frame 101, the support frame 101 being disposed between two sets of mobile tracked wheels 100, and a boom 103 being disposed in the middle of the support frame 101; a water spraying mechanism 200, including a water tank 201 and a nozzle 203, a water pump 204 being disposed at the top of the water tank 201, the nozzle 203 being connected to the water pump 204 via a pipe, a base 202 being disposed at the bottom of the water tank 201, a buffer pad being disposed on the bottom surface of the base 202 in contact with the surface of the support frame 101, and a cab 102 being disposed above the support frame 101 and on the side of the boom 103; In this embodiment, the mobile track wheel 100 is a tracked walking mechanism commonly used in heavy engineering machinery, which has good terrain adaptability and load-bearing capacity, ensuring that the device can move and operate stably on complex construction ground such as potholes and soft ground. The buffer pad between the base 202 and the support frame 101 is made of elastic materials such as rubber, which can effectively absorb and isolate the vibration and impact generated during the operation and movement of the equipment, and protect the water tank 201. The cab 102 is a closed or semi-closed structure with an integrated control console, which facilitates the operator to centrally control the movement of the equipment, the boom 103 and the protective mechanism 300. like Figure 1 , Figure 2 and Figure 3 As shown, the protective mechanism 300 is located at the end of the boom 103 and is used to protect the nozzle 203. The protective mechanism 300 includes an outer movable cover 301. The end of the boom 103 is fixedly connected to the mounting frame 303. Two sets of inner fixed covers 302 are provided on the bottom surface of the mounting frame 303 near the center of the mounting frame 303, which are distributed symmetrically with the midpoint of the mounting frame 303 as the axis. The outer movable cover 301 is slidably sleeved on the outside of the two sets of inner fixed covers 302. The bottom surface of the mounting frame 303 is located inside the outer movable cover 301 and is provided with a first scraper 310 for cleaning water droplets on the inner wall of the outer movable cover 301. The first scraper 310 is located at the far end of the two sets of inner fixed covers 302, and the end of the first scraper 310 is slidably connected to the inner wall of the outer movable cover 301. The first scraper 310 and the inner fixed cover 302 do not contact each other. In this embodiment, the inner fixed cover 302 is fixed to the bottom surface of the mounting bracket 303, providing a sliding track for the outer movable cover 301. The sliding fit design between the outer movable cover 301 and the inner fixed cover 302 allows the outer movable cover 301 to extend or retract relative to the inner fixed cover 302. When it is necessary to deal with strong winds or to carry out targeted dust suppression, the outer movable cover 301 can be controlled to slide and retract towards the center of the nozzle 203, so that the cover closes, which can gather and guide the water mist, effectively suppress the diffusion of water mist, and ensure that the water mist is concentrated on the designated area. When the wind is weak or large-area dust suppression is required, the outer movable cover 301 can be controlled to slide and extend outward, expanding the opening range of the cover and allowing the water mist to spread more widely. The first scraper 310 is made of a material with certain elasticity and wear resistance, such as rubber or polyurethane. The first scraper 310 is installed at the bottom of the mounting bracket 303. During the process of the outer movable cover 301 sliding outward from the inner fixed cover 302, the end of the first scraper 310 continuously keeps in contact with the inner wall of the outer movable cover 301 and generates a scraping action, thereby timely removing water droplets and mud mixtures adhering to the inner wall and preventing them from drying and hardening and clogging the cover opening or affecting the spray shape. like Figure 4 and Figure 5 As shown, two sets of inner fixed covers 302 are fixedly installed on the bottom surface of the mounting bracket 303. Limiting grooves 312 are provided at both ends of the inner wall where the outer movable cover 301 and the inner fixed cover 302 are inserted. Protrusions 311 are provided on the side walls of the far end of the two sets of inner fixed covers 302. The protrusions 311 are slidably connected to the inner wall of the limiting groove 312. The end of the limiting groove 312 is not connected to the outer side wall of the outer movable cover 301. In this embodiment, the protrusion 311 is embedded in the limiting groove 312, so that the outer movable cover 301 can only slide along the inner wall of the limiting groove 312, preventing it from radially deviating or twisting, thus ensuring motion accuracy and stability. The end of the limiting groove 312 does not extend to the outer wall of the outer movable cover 301, so that the protrusion 311 is restricted within the limiting groove 312, preventing the outer movable cover 301 from falling out of the inner fixed cover 302 during sliding, which would cause damage to the equipment. like Figure 5 As shown, the two sets of outer movable covers 301 are provided with a second scraper 313 on the sidewalls of their similar ends for scraping and cleaning water droplets on the inner wall of the inner fixed cover 302. In this embodiment, when the outer movable cover 301 slides inward and retracts to cover the outside of the inner fixed cover 302, the second scraper 313 moves accordingly and makes relative sliding contact with the outer wall of the inner fixed cover 302, keeping the outer wall of the inner fixed cover 302 clean of water droplets, dust and other dirt that may condense or splash on the outer wall of the inner fixed cover 302. like Figure 3 and Figure 4As shown, the bottom surface of the mounting bracket 303 is provided with grooves 309 on both sides of the nozzle 203. A bidirectional threaded rod 306 is rotatably installed inside one of the grooves 309. The end of the bidirectional threaded rod 306 passes through the side wall of the mounting bracket 303 and is keyed to the output shaft of the motor 305 provided on the outer side wall of the mounting bracket 303. A guide rod 307 is fixedly installed inside the other groove 309. A slider 308 is sleeved inside both sets of grooves 309 outside the bidirectional threaded rod 306 and the guide rod 307. The bottom surface of the slider 308 is fixedly connected to the top surface of the corresponding outer movable cover 301 below. A rain cover 304 is provided above the motor 305 on the side wall of the mounting bracket 303 to protect the motor 305. In this embodiment, when the bidirectional threaded rod 306 is driven to rotate by the motor 305, since the threads at both ends of the bidirectional threaded rod 306 rotate in opposite directions, the two sliders 308 will move synchronously towards or away from each other along the axis of the bidirectional threaded rod 306. The guide rod 307 is arranged parallel to the bidirectional threaded rod 306, and another slider 308 is sleeved on the guide rod 307. Its main function is to prevent the slider 308 from rotating during movement, ensuring that the outer movable cover 301 only performs linear opening and closing movements, thereby driving the two sets of outer movable covers 301 to open or close. The rain cover 304 covers the motor 305, forming a certain shielding space to prevent rainwater, dust, etc. from directly intruding into the motor 305, further improving its service life in the exposed environment.

[0021] Working principle: The operator first moves the device to the vicinity of the dust suppression location in the construction area via the moving track wheels 100. The operator enters the cab 102 and operates the boom 103 to accurately position the mounting frame 303 and its nozzles 203 and protective mechanism 300 above or in front of the area to be dusted. The water pump 204 is started, and the water in the water tank 201 is pressurized and sprayed out through the nozzles 203. Depending on the wind speed and the dust suppression area to be covered, the operator controls the forward and reverse rotation of the motor 305. The motor 305 drives the bidirectional threaded rod 306 to rotate, which in turn drives the outer movable covers 301 on both sides to slide along the inner fixed cover 302 via the slider 308. When concentrated dust suppression is needed, the outer movable covers 301 slide inward to close and gather water mist; when large-area dust suppression is needed, the outer movable covers 301 slide outward to expand the range of water mist dispersion.

[0022] Note: The bidirectional threaded rod 306 in this application has bidirectional threads on its exterior.

[0023] It should be noted that the motor 305 mentioned above is a device with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the motor 305 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0024] 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 suppression device for earthwork construction, characterized in that, include: The movable track wheels (100) and the support frame (101) are arranged between two sets of movable track wheels (100), and the support frame (101) is provided with a boom (103) in the middle. The water spraying mechanism (200) includes a water tank (201) and a nozzle (203). A water pump (204) is installed on the top of the water tank (201), and the nozzle (203) is connected to the water pump (204) through a pipe. A protective mechanism (300) is provided at the end of the boom (103) for protecting the nozzle (203). The protective mechanism (300) includes an outer movable cover (301). The end of the boom (103) is fixedly connected to the mounting frame (303). Two sets of inner fixed covers (302) are provided on the bottom surface of the mounting frame (303) near the center of the mounting frame (303), with the midpoint of the mounting frame (303) as the axis of symmetry. The outer movable cover (301) is slidably sleeved on the outside of the two sets of inner fixed covers (302). The bottom surface of the mounting bracket (303) is located inside the outer movable cover (301) and is provided with a first scraper (310) for cleaning water droplets on the inner wall of the outer movable cover (301).

2. The dust suppression device for earthwork construction according to claim 1, characterized in that, The first scraper (310) is located at the far end of the two sets of inner fixing covers (302), and the end of the first scraper (310) is slidably connected to the inner wall of the outer movable cover (301). The first scraper (310) and the inner fixing cover (302) do not contact each other.

3. The dust suppression device for earthwork construction according to claim 2, characterized in that, The two sets of inner fixing covers (302) are fixedly installed on the bottom surface of the mounting frame (303). The inner walls of the outer movable cover (301) and the inner fixing cover (302) are provided with limiting grooves (312). The far end sidewalls of the two sets of inner fixing covers (302) are provided with protrusions (311). The protrusions (311) are slidably connected to the inner wall of the limiting groove (312). The end of the limiting groove (312) is not connected to the outer sidewall of the outer movable cover (301).

4. A dust suppression device for earthwork construction according to claim 3, characterized in that, The two sets of outer movable covers (301) are provided with a second scraper (313) on the sidewall of the end of the outer movable cover (302) for scraping and cleaning water droplets on the inner wall of the inner fixed cover (302).

5. A dust suppression device for earthwork construction according to claim 4, characterized in that, The bottom surface of the mounting bracket (303) is provided with grooves (309) on both sides of the nozzle (203). A bidirectional threaded rod (306) is rotatably provided inside one of the grooves (309). The end of the bidirectional threaded rod (306) passes through the side wall of the mounting bracket (303) and is keyed to the output shaft of the motor (305) provided on the outer side wall of the mounting bracket (303).

6. A dust suppression device for earthwork construction according to claim 5, characterized in that, Another slide (309) has a guide rod (307) fixedly installed inside. The two sets of slides (309) are fitted with sliders (308) outside the bidirectional threaded rod (306) and guide rod (307). The bottom surface of the sliders (308) is fixedly connected to the top surface of the corresponding outer movable cover (301) below.

7. A dust suppression device for earthwork construction according to claim 6, characterized in that, A rain cover (304) for protecting the motor (305) is provided on the side wall of the mounting bracket (303) above the motor (305).

8. A dust suppression device for earthwork construction according to claim 1, characterized in that, The bottom of the water tank (201) is provided with a base (202), and the bottom surface of the base (202) in contact with the surface of the support frame (101) is provided with a buffer pad. The cab (102) is provided above the support frame (101) and on the side of the boom (103).

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