Environment-friendly dust falling device for constructional engineering

Abstract

The invention relates to an environment-friendly dust falling device for constructional engineering. The device comprises a horizontal plate, and a telescopic rod and a telescopic driving piece used for driving the telescopic rod to stretch out and draw back are vertically mounted at the top of the horizontal plate; the top of the horizontal plate is further provided with a pipe reeling device which can be unreeled along with extension of the telescopic rod and reeled along with shortening of the telescopic rod, and the pipe reeling device is provided with a water inlet and a water outlet. A water spraying assembly is vertically installed on the top of the top U-shaped rod and connected with a water outlet of a pipe rolling device through a hose, a water inlet of the pipe rolling device is communicated with the water tank through a water pipe, and a water pump is arranged on the water pipe. An existing environment-friendly dust falling device has the problem of being difficult to store and move, dust falling can be effectively conducted on flying dust within a certain height range, the environment-friendly purpose is achieved, and meanwhile the device is easy to store and move.

Description

Technical Field

[0001] The invention relates to the field of dust reduction devices, in particular to an environmentally friendly dust reduction device used in construction projects. Background Art

[0002] Construction projects refer to the construction of various houses and buildings. During construction projects, dust on the ground is easily blown into the atmosphere by wind, human and other forces, forming an open pollution source - construction dust. Construction dust is the most difficult to effectively control, and will make the construction site a disaster area of ​​environmental pollution. Dust enters the lungs through the nasal cavity and throat, causing changes in lung function, nervous system diseases, lung cancer, etc., and spreads a variety of epidemic diseases through the air. Many bacteria and viruses are transmitted by attaching to the surface of dust. At the same time, dust will reduce visibility, causing serious visual pollution, and will also form acid precipitation, which has a strong corrosive effect on the surface of metals, building materials and cultural relics.

[0003] In order to prevent and control dust, people have taken many measures, such as using fencing, washing vehicles, and using environmentally friendly dust reduction devices that can spray water to reduce dust. Currently, the most commonly used environmentally friendly dust reduction devices are usually composed of a main unit and a pole. The length of the pole is usually more than 15 meters, and the size of the main unit is also large. Therefore, it not only takes up a large space when stored and is inconvenient to store, but also makes it difficult to move and carry.

[0004] Therefore, the existing environmental protection dust reduction device has the problem that it is difficult to store and move. Summary of the invention

[0005] The present invention aims to overcome the defects of the prior art and provide an environmentally friendly dust reduction device for construction engineering.

[0006] In order to solve the above-mentioned technical problems, the present invention is achieved as follows: An environmentally friendly dust reduction device for construction engineering comprises a horizontal plate, a telescopic rod and a telescopic driving member for driving the telescopic rod to extend and retract are vertically mounted on the top of the horizontal plate; The telescopic rod comprises a bottom U-shaped rod, a plurality of middle U-shaped rods and a top U-shaped rod which are slidably connected in sequence from bottom to top, and the central axes of the bottom U-shaped rod, the plurality of middle U-shaped rods and the top U-shaped rod are parallel to each other; A first lower roller is installed between the bottoms of the two vertical ends of the bottom U-shaped rod, and a first upper roller is installed between the tops; a second lower roller is installed between the bottoms of the two vertical ends of the middle U-shaped rod, and a second upper roller is installed between the tops; a third lower roller is installed between the bottoms of the two vertical ends of the top U-shaped rod; The telescopic driving member is fixedly connected to one end of the belt, and the other end of the belt is sequentially wound around the first lower roller, the first upper roller, the second lower rollers of the plurality of middle U-shaped rods, the second upper roller, and then fixedly connected to the third lower roller; A hose reel is also installed on the top of the horizontal plate, which can unwind and rewind as the telescopic rod is extended and shortened, and a water inlet and a water outlet are provided on the hose reel; A water spray assembly is vertically installed on the top of the top U-shaped rod. The water spray assembly is connected to the water outlet of the hose reel through a hose. The water inlet of the hose reel is connected to the water tank through a water pipe, and a water pump is arranged on the water pipe.

[0007] As a further improvement of the present invention: at least three universal wheels are installed at the bottom of the horizontal plate.

[0008] As a further improvement of the present invention: sliding grooves are provided on the opposite surfaces of the two vertical ends of the bottom U-shaped rod and on the opposite surfaces of the two vertical ends of the middle U-shaped rod; The lower parts of the top U-shaped rod and the middle U-shaped rod are both provided with sliding blocks which can slide in the sliding grooves of the bottom U-shaped rod or the sliding grooves of the middle U-shaped rod.

[0009] As a further improvement of the present invention: the telescopic drive member includes a retractable roller for unwinding or rewinding the belt and a first motor for driving the retractable roller to rotate, and the retractable roller is fixedly connected to one end of the belt; The rotating shaft of the retractable and reeling roller is connected to the rotating shaft of the hose reel through a gear set.

[0010] As a further improvement of the present invention: a pressing assembly for pressing the belt wound on the first lower roller is also provided on the top of the horizontal plate; The pressing assembly includes a pressing slider capable of sliding in a direction perpendicular to the central axis of the first lower roller and used for pressing the belt wound on the first lower roller; The clamping assembly also includes a second motor, the output shaft of the second motor is coaxially connected to the ball screw, a screw nut is slidably mounted on the ball screw, and the screw nut is fixedly connected to the clamping slider through a horizontal rod.

[0011] Preferably, a trigger-type water valve is provided on the portion of the water pipe between the water pump and the hose reel, which valve can be opened when the compression assembly compresses the belt and closed when the belt is loosened.

[0012] Preferably, the trigger-type water valve comprises a rectangular parallelepiped shell, a cylindrical cavity is arranged in the shell, the central axis of the cylindrical cavity is perpendicular to the central axis of the first lower roller, a plunger which can slide along the central axis of the cavity is installed in the cavity, a first return spring is arranged between the bottom surface of the plunger away from the lead screw nut and the bottom surface of the cavity away from the lead screw nut, a triggered rod is vertically installed on the bottom surface of the plunger close to the lead screw nut, a triggered rod through hole for the triggered rod to pass through is opened on one surface of the shell close to the lead screw nut, and a trigger rod which can press or loosen the triggered rod is vertically installed on one surface of the lead screw nut away from the pressing slider; A water valve inlet hole is provided on one side of the rectangular shell body close to the water pump, and a water valve outlet hole is provided on one side of the rectangular shell body close to the water pipe. The water valve outlet hole is connected with the water inlet of the hose reel through the water pipe. The plunger is provided with an annular water-passing groove for supplying water to flow from the water inlet hole of the water valve to the water outlet hole of the water valve.

[0013] As a further improvement of the present invention: the water spray assembly includes a hollow cylindrical water tank vertically mounted on the top of the top U-shaped rod, a water tank water inlet is opened at the bottom of the water tank, and the water tank water inlet is connected to the water outlet of the hose reel through a hose; At least one nozzle rod is hinged on the top of the water tank, a water passage is provided in the nozzle rod, the water passage is connected with the water tank, a nozzle is installed at one end of the nozzle rod away from the water tank, and the nozzle is connected with the water passage.

[0014] Preferably, an opening and closing control component capable of closing or opening at least one nozzle rod in the direction of the telescopic rod is installed on the telescopic rod; The opening and closing control component includes a limit hollow tube vertically installed on the top of the lower bottom plate of the water tank, the limit hollow tube passes through the upper bottom plate of the water tank, and a circular ring is fixedly installed outside the part of the limit hollow tube located above the water tank; A sleeve is provided on the outer portion of the limiting hollow tube located above the circular ring, the sleeve is connected to the circular ring through a second return spring, and a limiting circular ring for limiting the sliding of the sleeve is fixedly installed on the top of the limiting hollow tube; The opening and closing control assembly also includes an L-shaped rod fixedly mounted on the middle U-shaped rod near the top U-shaped rod or on the bottom U-shaped rod, and the long end of the L-shaped rod is parallel to the telescopic rod; A vertical rod is installed on the top of the long end, which can slide in the limit hollow tube as the telescopic rod is extended and retracted. Holes for the vertical rod to pass through are opened on the upper and lower bottom plates of the water tank. A pressing block for tightening or loosening the sleeve is arranged on the top of the vertical rod. A driving rod corresponding to the number and position of the spray head rods is hinged outside the sleeve, and one end of the driving rod away from the sleeve is hinged to the corresponding spray head rod.

[0015] Preferably, a blowing assembly is installed on the water spray assembly for blowing away the water mist sprayed from the water spray assembly; The blowing assembly includes a hydraulic rotating part rotatably installed in the water tank and capable of rotating under hydraulic drive. The top of the hydraulic rotating part passes through the top of the water tank and extends outside the water tank to form an extension section. A large gear is fixedly installed outside the extension section. A gear ring is rotatably installed on the top of the water tank. The large gear is meshed with the gear ring through at least one small gear. The small gear is rotatably installed on the top of the water tank, and the gear ring is fixedly connected to the fan through a C-shaped rod.

[0016] The beneficial effects of the present invention are as follows: It can be seen from the above technical solution that the present application provides an environmentally friendly dust reduction device for construction projects, which has a telescopic rod and a hose reel that can be rolled up or unrolled as the telescopic rod is extended or retracted. Therefore, when not in use, the telescopic rod is shortened and the hose is rolled up on the hose reel, which can greatly reduce the volume of the device and facilitate storage and movement. At the same time, the device has a simple structure, with components such as a water tank, a water pump, a telescopic rod, a telescopic drive, and a hose reel on a horizontal plate. No additional frame is required, and the main body of the device and the water spraying assembly for spraying water can be moved synchronously, which also reduces the volume of the device and further improves its maneuverability. When in use, the telescopic rod is extended again, so that the purpose of dust reduction by spraying water from a high altitude can be achieved. Therefore, the device can effectively reduce dust within a certain height range to achieve environmental protection purposes, and it is also relatively easy to store and move. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention in an initial state; Figure 2 It is a schematic diagram of the overall structure of the present invention in a working state; Figure 3 It is a schematic diagram of the top view position relationship of some parts installed on the horizontal plate of the present invention; Figure 4 It is a schematic diagram of the overall structure of some parts installed on the horizontal plate of the present invention; Figure 5 It is a schematic diagram of the overall structure of the telescopic rod, the telescopic driving member and a part of the opening and closing control assembly in the present invention; Figure 6 It is a schematic diagram of the overall structure of the bottom U-shaped rod and each roller in the present invention; Figure 7 It is a schematic diagram of the overall structure of the middle U-shaped rod and each roller in the present invention; Figure 8 It is a schematic diagram of the overall structure of the top U-shaped rod and each roller in the present invention; Fig. 9 It is a schematic diagram of the positional relationship among the telescopic drive member, the belt and the rollers in the present invention; Fig.10 It is a schematic diagram of the overall structure of the water spraying assembly, the opening and closing control assembly and part of the telescopic rod in the present invention; Fig.11 It is a perspective schematic diagram of the overall structure of the nozzle rod and the nozzle in the present invention; Fig.12 It is a schematic diagram of the overall structure of the pressing assembly in the present invention; Fig.13 It is a schematic diagram of the overall structure of the blowing assembly in the present invention; Fig.14 It is a schematic diagram of the overall structure of the hydraulic rotating parts and the large gear in the present invention; Fig.15 It is a position relationship diagram of the pressing component and the trigger-type water valve in the present invention; Fig.16 is a perspective view of the overall structure of the housing in the present invention; Fig.17 It is an assembly diagram of the triggered rod, the plunger, and the first return spring in the present invention; Fig.18 It is a perspective schematic diagram of the overall structure of the trigger-type water valve of the present invention; The names of the components corresponding to the marks in the above drawings are: 101, horizontal plate; 102, surrounding wall; 103, universal wheel; 2. Telescopic rod; 201. Bottom U-shaped rod; 201A. First lower roller; 201B. First upper roller; 202. Middle U-shaped rod; 202A. Second lower roller; 202B. Second upper roller; 203. Top U-shaped rod; 203A. Third lower roller; 204. Pressing roller; 205. Slide groove; 206. Sliding block; 3. Telescopic driving member; 301. Retractable and retractable roller; 302. First motor; 401, hose reel; 402, hose; 403, water pipe; 404, water tank; 405, water pump; 5. Water spray assembly; 501. Water tank; 502. Water tank water inlet; 503. Sprinkler rod; 504. Water passage; 505. Sprinkler; 7. Trigger type water valve; 701. Shell; 702. Cavity; 703. Plunger; 704. First return spring; 705. Triggered rod; 706. Triggered rod through hole; 707. Water inlet hole of water valve; 708. Water outlet hole of water valve; 709. Annular water groove; 8. Blowing assembly; 801. Hydraulic rotating part; 802. Large gear; 803. Ring gear; 804. Small gear; 805. C-shaped rod; 806. Fan; 9. Belt; 10. Gear set; 1001. First gear; 1002. Second gear; 11. Clamping assembly; 1101. Clamping slider; 1102. Second motor; 1103. Ball screw; 1104. Screw nut; 1105. Horizontal rod; 1106. Lead spring; 1107. Trigger rod; 12. Opening and closing control assembly; 1201. Limiting hollow tube; 1202. Circular ring; 1203. Sleeve; 1204. Second return spring; 1205. L-shaped rod; 1206. Vertical rod; 1207. Pressing block; 1208. Driving rod. DETAILED DESCRIPTION

[0018] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application. like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown: An environmentally friendly dust reduction device for construction projects, including a horizontal plate 101, and a circle of surrounding walls 102 are arranged around the horizontal plate 101, which can provide a certain degree of protection for the components installed on the horizontal plate 101. At least three universal wheels 103 are installed at the bottom of the horizontal plate 101, and 4 are shown in the figure, which is convenient for moving the device and saves time and effort. A telescopic rod 2 and a telescopic drive member 3 for driving the telescopic rod 2 to extend and retract are vertically installed on the top of the horizontal plate 101. The telescopic drive member 3 includes a retracting roller 301 for unwinding or winding the belt 9 and a first motor 302 for driving the retracting roller 301 to rotate, and the retracting roller 301 is fixedly connected to one end of the belt 9. The rotating shaft of the reel 301 and the rotating shaft of the hose reel 401 are connected by a gear set 10. The gear set 10 includes a first gear 1001 fixedly mounted on the rotating shaft of the reel 301 and a second gear 1002 fixedly mounted on the rotating shaft of the hose reel 401. The first gear 1001 is meshed with the second gear 1002.

[0019] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9As shown, the telescopic rod 2 includes a bottom U-shaped rod 201, a plurality of middle U-shaped rods 202, and a top U-shaped rod 203 which are slidably connected from bottom to top in sequence, and the range represented by the number is: 0~N, N represents a positive integer, and the number of the middle U-shaped rods 202 in the figure is three, and the central axes of the bottom U-shaped rod 201, the plurality of middle U-shaped rods 202, and the top U-shaped rod 203 are parallel to each other. A slide groove 205 is provided on the opposite surfaces of the two vertical ends of the bottom U-shaped rod 201 and the opposite surfaces of the two vertical ends of the middle U-shaped rod 202. A slider 206 which can slide in the slide groove 205 of the bottom U-shaped rod 201 or the slide groove 205 of the middle U-shaped rod 202 is installed at the lower part of the top U-shaped rod 203 and the middle U-shaped rod 202. When the number of the middle U-shaped rods 202 is zero, the slider 206 of the top U-shaped rod 203 slides directly in the slide groove 205 of the bottom U-shaped rod 201. When the number of the intermediate U-shaped rods 202 is one, the slider 206 of the top U-shaped rod 203 slides in the slide groove 205 of the intermediate U-shaped rod 202. When the number of the intermediate U-shaped rods 202 is greater than one, the slider 206 of the top U-shaped rod 203 slides in the slide groove 205 of the uppermost intermediate U-shaped rod 202. A first lower roller 201A is installed between the bottoms of the two vertical ends of the bottom U-shaped rod 201, and a first upper roller 201B is installed between the tops. A second lower roller 202A is installed between the bottoms of the two vertical ends of the intermediate U-shaped rod 202, and a second upper roller 202B is installed between the tops. A third lower roller 203A is installed between the bottoms of the two vertical ends of the top U-shaped rod 203. The telescopic drive member 3 is fixedly connected to one end of the belt 9, and the other end of the belt 9 is sequentially wound around the first lower roller 201A, the first upper roller 201B, the second lower roller 202A and the second upper roller 202B of the plurality of middle U-shaped rods 202, and then fixedly connected to the third lower roller 203A. By unwinding the belt 9, the plurality of middle U-shaped rods 202 and the top U-shaped rod 203 can slide downward, and the telescopic rod 2 can be shortened; by rewinding the belt 9, the plurality of middle U-shaped rods 202 and the top U-shaped rod 203 can slide upward, and the telescopic rod 2 can be extended. The above rollers facilitate the rewinding and unwinding of the belt 9, and can reduce the friction force on the belt 9 when it slides. A clamping roller 204 is installed at the top of the horizontal plate 101 between the bottom U-shaped rod 201 and the reeling roller 301 for compressing and smoothing the belt 9 that is about to be wound into the reeling roller 301 or has just been released from the reeling roller 301. This can make the working state of the belt 9 more stable and avoid interference with its work due to bending or displacement of the belt 9.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.12As shown, a pressing assembly 11 for pressing the belt 9 wound on the first lower roller 201A is also provided on the top of the horizontal plate 101. The pressing assembly 11 includes a pressing slider 1101 that can slide in a direction perpendicular to the central axis of the first lower roller 201A and is used to press the belt 9 wound on the first lower roller 201A. The end of the pressing slider 1101 that contacts the belt 9 is provided with a recess that matches the shape of the first lower roller 201A, and the bottom of the recess is an arc-shaped structure. The clamping assembly 11 also includes a second motor 1102, the output shaft of the second motor 1102 is coaxially connected to the ball screw 1103, a screw nut 1104 is slidably mounted on the ball screw 1103, the screw nut 1104 is fixedly connected to the clamping slider 1101 through a horizontal rod 1105, a lead spring 1106 is provided on the outer sleeve of the horizontal rod 1105, and the two ends of the lead spring 1106 are respectively connected to the clamping slider 1101 and the screw nut 1104. A mounting frame for mounting the ball screw 1103 is provided between the bottom U-shaped rod 201 and the trigger-type water valve 7, and two lead rods for stabilizing the sliding of the screw nut 1104 are also installed between the mounting frames, a hole for the lead rod to pass through is provided on the screw nut 1104, and a through hole for the clamping slider 1101 to pass through is also provided on the mounting frame.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.15 , Fig.16 , Fig.17 , Fig.18As shown, a trigger-type water valve 7 is provided on the portion of the water pipe 403 between the water pump 405 and the hose reel 401 , which can be opened when the pressing assembly 11 presses the belt 9 and closed when the belt 9 is released. The trigger-type water valve 7 includes a rectangular shell 701, in which a cylindrical cavity 702 is arranged, and the central axis of the cylindrical cavity 702 is perpendicular to the central axis of the first lower roller 201A. A plunger 703 capable of sliding along the central axis direction of the cavity 702 is installed in the cavity 702, and a first return spring 704 is arranged between the bottom surface of the plunger 703 away from the screw nut 1104 and the bottom surface of the cavity 702 away from the screw nut 1104. A triggered rod 705 is vertically installed on the bottom surface of the plunger 703 close to the screw nut 1104, and a triggered rod through hole 706 for the triggered rod 705 to pass through is opened on the side of the shell 701 close to the screw nut 1104, and a trigger rod 1107 capable of tightening or loosening the triggered rod 705 is vertically installed on the side of the screw nut 1104 away from the clamping slider 1101. A water valve inlet hole 707 is provided on one side of the rectangular housing 701 close to the water pump 405, and a water valve outlet hole 708 is provided on one side of the rectangular housing 701 close to the water pipe 403. The water valve outlet hole 708 is connected to the water inlet of the hose reel 401 through the water pipe 403. An annular water-passing groove 709 is provided on the plunger 703 for water to flow from the water valve inlet hole 707 to the water valve outlet hole 708. The water valve inlet hole 707 and the water valve outlet hole 708 can be closed and opened by sliding the plunger 703, and the water flow rate can be controlled by the annular water-passing groove 709.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.10 , Fig.11As shown, a hose reel 401 capable of unwinding and rewinding as the telescopic rod 2 is extended is also installed on the top of the horizontal plate 101, and a water inlet and a water outlet are provided on the hose reel 401. A water spray assembly 5 is vertically installed on the top of the top U-shaped rod 203, and the water spray assembly 5 is connected to the water outlet of the hose reel 401 through a hose 402. The water inlet of the hose reel 401 is connected to a water tank 404 through a water pipe 403. The water pipe 403 is a hard water pipe, and a water pump 405 is provided on the water pipe 403. The water spray assembly 5 includes a hollow cylindrical water tank 501 vertically installed on the top of the top U-shaped rod 203, and a water tank water inlet 502 is provided at the bottom of the water tank 501, and the water tank water inlet 502 is connected to the water outlet of the hose reel 401 through a hose 402. At least one nozzle rod 503 is hinged at the top of the water tank 501, and there are 6 nozzle rods in the figure. A water passage 504 is provided in the nozzle rod 503, and the water passage 504 is connected to the water tank 501. A nozzle 505 is installed at one end of the nozzle rod 503 away from the water tank 501, and the nozzle 505 is connected to the water passage 504. An opening and closing control component 12 is installed on the telescopic rod 2, which can close or open at least one nozzle rod 503 toward the telescopic rod 2. The opening and closing control component 12 includes a limit hollow tube 1201 vertically installed on the top of the lower bottom plate of the water tank 501, the limit hollow tube 1201 passes through the upper bottom plate of the water tank 501, and a circular ring piece 1202 is fixedly installed outside the part of the limit hollow tube 1201 located above the water tank 501. The part of the limiting hollow tube 1201 located above the circular ring 1202 is provided with a sleeve 1203, and the sleeve 1203 is connected to the circular ring 1202 through a second return spring 1204. A limiting circular ring for limiting the sliding of the sleeve 1203 is fixedly installed on the top of the limiting hollow tube 1201. The opening and closing control component 12 also includes an L-shaped rod 1205 fixedly installed on the middle U-shaped rod 202 close to the top U-shaped rod 203 or on the bottom U-shaped rod 201, and the long end of the L-shaped rod 1205 is parallel to the telescopic rod 2. A vertical rod 1206 is installed on the top of the long end, which can slide in the limiting hollow tube 1201 as the telescopic rod 2 is extended and retracted. Holes for the vertical rod 1206 to pass through are provided on the upper and lower bottom plates of the water tank 501. A pressing block 1207 for tightening or loosening the sleeve 1203 is provided on the top of the vertical rod 1206. A strip hole for the pressing block 1207 to pass through is provided on the side wall of the limiting hollow tube 1201. A driving rod 1208 corresponding to the number and position of the nozzle rod 503 is hinged outside the sleeve 1203, and the end of the driving rod 1208 away from the sleeve 1203 is hinged to the corresponding nozzle rod 503.

[0023] like Figure 1 , Figure 2 , Fig.13 , Fig.14As shown, the water spray assembly 5 is equipped with a blowing assembly 8 for blowing away the water mist sprayed from the water spray assembly 5. The blowing assembly 8 includes a hydraulic rotating member 801 rotatably installed in the water tank 501 and capable of rotating under hydraulic drive, and the hydraulic rotating member 801 includes a hollow tube body and a plurality of blades obliquely and equidistantly installed at the lower end of the hollow tube body. The top of the hollow tube body of the hydraulic rotating member 801 passes through the top of the water tank 501 and extends to the outside of the water tank 501 to form an extension section. A large gear 802 is fixedly installed outside the extension section. A gear ring 803 is rotatably installed on the top of the water tank 501. The top of the water tank 501 is also provided with a plurality of gear ring support members for supporting the gear ring 803. The large gear 802 is meshed with the gear ring 803 through at least one small gear 804. The small gear 804 is rotatably installed on the top of the water tank 501. The gear ring 803 is fixedly connected to a fan 806 for blowing away the water mist sprayed from the nozzle 505 through a C-shaped rod 805. The fan 806 includes a small circular ring and a large circular ring whose centers are overlapped. The small circular ring and the large circular ring are connected by a plurality of fan blades arranged at an angle and at equal intervals. When the fan 806 rotates, the rotating fan blades can generate wind to blow away the water mist sprayed by the water spray assembly 5 and expand the spraying area.

[0024] The working principle of the present invention is as follows: when the device is in the initial state, the telescopic rod 2 is in the shortest shortened state, the slider 206 of the top U-shaped rod 203 is located at the bottom of the slide groove 205 of the uppermost middle U-shaped rod 202, the sliders 206 of the upper middle U-shaped rod 202 are all located at the bottom of the slide groove 205 of the adjacent middle U-shaped rod 202 located at the lower layer, and the slider 206 of the lower middle U-shaped rod 202 is located at the bottom of the slide groove 205 of the bottom U-shaped rod 201. At the bottom of the groove 205, the reel 301 is in the unwinding state, the belt 9 reaches the longest unwinding length, the hose reel 401 is in the rewinding state, the hose 402 is rewound to the shortest, the top U-shaped rod 203 is located in the L-shaped rod 1205, the pressure block 1207 at the top of the vertical rod 1206 is higher than the sleeve 1203, the second return spring 1204 is in a natural extension state, and the sleeve 1203 is in contact with the limiting circular ring sheet at the top of the limiting hollow tube 1201. The end of the driving rod 1208 close to the sleeve 1203 is on the top, and the end close to the nozzle rod 503 is on the bottom. The nozzle rod 503 is close to the sleeve 1203, and the water spray assembly 5 is in a closed state. At this time, the dust suppression device is easy to store, carry and move.

[0025] When the device gradually changes from the initial state to the working state, the first motor 302 is started, driving the reeling and unreeling roller 301 to rotate and start to reel in the belt 9, and the pressing roller 204 presses and flattens the belt 9 that is about to be rolled up on the reeling and unreeling roller 301. As the belt 9 is reeled in, the slider 206 of the bottom middle U-shaped rod 202 starts to slide upward in the slide groove 205 of the bottom U-shaped rod 201 until the slider 206 reaches the top of the slide groove 205, and then the slider 206 of the middle U-shaped rod 202 of the layer above the bottom middle U-shaped rod 202 starts to slide upward in the slide groove 205 of the bottom middle U-shaped rod 202 , until the slider 206 reaches the top of the slide groove 205, all the middle U-shaped rods 202 repeat the above process until the slider 206 of the top U-shaped rod 203 slides to the top of the slide groove 205 of the uppermost middle U-shaped rod 202. At this time, the telescopic rod 2 has been extended to the longest state. When the retractable and unreeling roller 301 rotates, it will drive the hose reel 401 to rotate through the gear set 10, and the rotation direction is opposite to the rotation direction of the retractable and unreeling roller 301. Therefore, while the retractable and unreeling roller 301 reels, the hose reel 401 starts to unwind the hose 402, until the telescopic rod 2 is extended to the maximum value and then stops unwinding, and the first motor 302 stops rotating. At this time, the top U-shaped rod 203 slides out of the L-shaped rod 1205, and the water spray assembly 5 slides upward with the top U-shaped rod 203, and the pressure block 1207 slides downward relative to the water spray assembly 5, and the pressure block 1207 gradually contacts with the sleeve 1203. The second return spring 1204 is subjected to pressure and is in a compressed state. It slides downward, driving the end of the rod 1208 close to the sleeve 1203 to move downward, and finally as the telescopic rod 2 completes the extension, it stays at a height slightly lower than the end of the driving rod 1208 away from the sleeve 1203. At this time, the driving rod 1208 is in an approximately horizontal state, supported between the sleeve 1203 and the nozzle rod 503, so that the nozzle rod 503 opens outward, and the water spray assembly 5 changes from a closed state to an open state, which is convenient for the water spray assembly 5 to expand the water spray range outward.

[0026] After the telescopic rod 2 is extended, the second motor 1102 is started, driving the ball screw 1103 to rotate, and the screw nut 1104 moves on the ball screw 1103 in the direction of the first lower roller 201A. The ball screw 1103 drives the clamping slider 1101 through the horizontal rod 1105 to gradually approach the first lower roller 201A, and the lead spring 1106 is compressed until the recessed portion of the clamping slider 1101 and the first lower roller 201A tightly clamp the belt 9, completing the locking of the belt 9 to prevent the belt 9 from moving suddenly and affecting the state of the telescopic rod 2. As the clamping slider 1101 gradually approaches the first lower roller 201A, the trigger rod 1107 gradually moves away from the triggered rod 705, and the first return spring 704 gradually returns from the compressed state to the natural extension state, driving the plunger 703 to slide in the cavity 702 until the first return spring 704 completely returns to the natural extension state. At this time, the annular water groove 709 is aligned with the water valve inlet hole 707 and the water valve outlet hole 708, and the water flow can pass through the annular water groove 709 to regulate the water flow. The clamping assembly 11 locks the belt 9, and the trigger water valve 7 is closed and opened.

[0027] Start the water pump 405, the water in the water tank 404 is pumped into the housing 701 from the water inlet hole 707 of the water valve, flows out from the water outlet hole 708 of the water valve after passing through the annular water groove 709, flows into the hose reel 401 from the water inlet along the water pipe 403, flows into the hose 402 from the water outlet, and finally flows into the water tank 501 from the water tank inlet 502, and then flows into the water channel 504 of each nozzle rod 503 from the water tank outlet opened on the top of the water tank 501, and then flows along the The water flows into the nozzle 505 through the water passage 504 and is sprayed out after being atomized by the nozzle 505. When the water flows into the water tank 501, the water will drive the hydraulic rotating part 801 to rotate. The hydraulic rotating part 801 drives the large gear 802 to rotate. The large gear 802 drives the ring gear 803 to rotate through multiple small gears 804. The ring gear 803 drives the fan 806 to rotate to generate wind, which blows away the atomized water mist, so that the water mist can expand the spraying range. During the process, the device can be moved by the universal wheel 103.

[0028] After dust suppression is completed, the water pump 405 is turned off, and then the second motor 1102 is started to drive the ball screw 1103 to reverse, the screw nut 1104 slides away from the first lower roller 201A, the lead spring 1106 gradually stretches back to the natural stretch state, the pressing slider 1101 moves away from the first lower roller 201A, and no longer locks the belt 9. The trigger rod 1107 gradually approaches the triggered rod 705, driving the plunger 703 to slide in the cavity 702 away from the first lower roller 201A, the annular water groove 709 is staggered with the water valve water inlet hole 707 and the water valve water outlet hole 708, the plunger 703 blocks the water valve water inlet hole 707 and the water valve water outlet hole 708, so that water can no longer pass through, the first reset spring 704 is in a compressed state, the pressing assembly 11 releases the belt 9, and the trigger water valve 7 is closed.

[0029] The first motor 302 reverses, driving the reel 301 to unwind, and at the same time drives the hose reel 401 to rotate and start rewinding the hose 402. The rotation direction of the hose reel 401 is still opposite to the rotation direction of the reel 301. As the belt 9 continues to lengthen, the top U-shaped rod 203 and each middle U-shaped rod 202 naturally slide down under the action of gravity, and the telescopic rod 2 shortens until it returns to the initial state. At this time, the device can be moved and stored. Because of its small size, it is very easy to store and carry, and the whole process saves time and effort.

[0030] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An environmentally friendly dust suppression device for construction engineering, characterized in that: It comprises a horizontal plate (101), on the top of which a telescopic rod (2) and a telescopic driving member (3) for driving the telescopic rod (2) to telescope are vertically mounted; The telescopic rod (2) comprises a bottom U-shaped rod (201), a plurality of middle U-shaped rods (202), and a top U-shaped rod (203) which are slidably connected in sequence from bottom to top, and the central axes of the bottom U-shaped rod (201), the plurality of middle U-shaped rods (202), and the top U-shaped rod (203) are parallel to each other; A first lower roller (201A) is installed between the bottoms of the two vertical ends of the bottom U-shaped rod (201), and a first upper roller (201B) is installed between the tops; a second lower roller (202A) is installed between the bottoms of the two vertical ends of the middle U-shaped rod (202), and a second upper roller (202B) is installed between the tops; a third lower roller (203A) is installed between the bottoms of the two vertical ends of the top U-shaped rod (203); The telescopic driving member (3) is fixedly connected to one end of the belt (9), and the other end of the belt (9) is sequentially wound around the first lower roller (201A), the first upper roller (201B), the second lower roller (202A) and the second upper roller (202B) of a plurality of middle U-shaped rods (202), and then fixedly connected to the third lower roller (203A); A hose reel (401) is also installed on the top of the horizontal plate (101) and can unwind as the telescopic rod (2) extends, and rewind as it shortens. The hose reel (401) is provided with a water inlet and a water outlet. A water spray assembly (5) is vertically mounted on the top of the top U-shaped rod (203); the water spray assembly (5) is connected to the water outlet of the hose reel (401) via a hose (402); the water inlet of the hose reel (401) is connected to the water tank (404) via a water pipe (403); and a water pump (405) is provided on the water pipe (403).

2. The environmentally friendly dust suppression device for construction engineering according to claim 1, characterized in that: At least three universal wheels (103) are installed at the bottom of the horizontal plate (101).

3. The environmentally friendly dust suppression device for construction engineering according to claim 1, characterized in that: Slide grooves (205) are provided on the opposite surfaces of the two vertical ends of the bottom U-shaped rod (201) and on the opposite surfaces of the two vertical ends of the middle U-shaped rod (202); The lower parts of the top U-shaped rod (203) and the middle U-shaped rod (202) are both provided with sliding blocks (206) capable of sliding in the sliding groove (205) of the bottom U-shaped rod (201) or the sliding groove (205) of the middle U-shaped rod (202).

4. An environmentally friendly dust suppression device for construction engineering according to any one of claims 1 to 3, characterized in that: The telescopic driving member (3) comprises a retractable roller (301) for unwinding or rewinding the belt (9) and a first motor (302) for driving the retractable roller (301) to rotate, wherein the retractable roller (301) is fixedly connected to one end of the belt (9); The rotating shaft of the reeling and unreeling roller (301) is connected to the rotating shaft of the hose reel (401) via a gear set (10).

5. An environmentally friendly dust suppression device for construction engineering according to any one of claims 1 to 3, characterized in that: A pressing assembly (11) for pressing the belt (9) wound around the first lower roller (201A) is also provided on the top of the horizontal plate (101); The pressing assembly (11) comprises a pressing slider (1101) capable of sliding in a direction perpendicular to the central axis of the first lower roller (201A) and used for pressing the belt (9) wound around the first lower roller (201A); The clamping assembly (11) further comprises a second motor (1102), the output shaft of the second motor (1102) being coaxially connected to the ball screw (1103), a screw nut (1104) being slidably mounted on the ball screw (1103), and the screw nut (1104) being fixedly connected to the clamping slider (1101) via a horizontal rod (1105).

6. The environmentally friendly dust suppression device for construction engineering according to claim 5, characterized in that: A trigger-type water valve (7) is provided on the portion of the water pipe (403) between the water pump (405) and the hose reel (401), which can be opened when the compression assembly (11) compresses the belt (9) and closed when the belt (9) is released.

7. The environmentally friendly dust suppression device for construction engineering according to claim 6, characterized in that: The trigger-type water valve (7) comprises a rectangular parallelepiped housing (701), a cylindrical cavity (702) being arranged in the housing (701), the central axis of the cylindrical cavity (702) being perpendicular to the central axis of the first lower roller (201A), a plunger (703) being installed in the cavity (702) and being able to slide along the central axis of the cavity (702), the bottom surface of the plunger (703) being away from the lead screw nut (1104) being aligned with the bottom surface of the cavity (702) being away from the lead screw nut (1104). A first return spring (704) is arranged between the bottom surfaces; a triggered rod (705) is vertically mounted on the bottom surface of the plunger (703) close to the lead screw nut (1104); a triggered rod through hole (706) for the triggered rod (705) to pass through is provided on one surface of the housing (701) close to the lead screw nut (1104); and a trigger rod (1107) capable of pressing or loosening the triggered rod (705) is vertically mounted on one surface of the lead screw nut (1104) away from the pressing slider (1101); A water valve water inlet hole (707) is provided on one side of the rectangular parallelepiped housing (701) close to the water pump (405), and a water valve water outlet hole (708) is provided on one side of the rectangular parallelepiped housing (701) close to the water pipe (403), and the water valve water outlet hole (708) is connected to the water inlet of the hose reel (401) through the water pipe (403); The plunger (703) is provided with an annular water-passing groove (709) for allowing water to flow from the water valve water inlet hole (707) to the water valve water outlet hole (708).

8. An environmentally friendly dust suppression device for construction engineering according to any one of claims 1 to 3, characterized in that: The water spray assembly (5) comprises a hollow cylindrical water tank (501) vertically mounted on the top of the top U-shaped rod (203); a water tank water inlet (502) is provided at the bottom of the water tank (501); the water tank water inlet (502) is connected to the water outlet of the hose reel (401) via a hose (402); At least one spray head rod (503) is hingedly connected to the top of the water tank (501), a water passage (504) is provided in the spray head rod (503), the water passage (504) is connected to the water tank (501), and a spray head (505) is installed at one end of the spray head rod (503) away from the water tank (501), the spray head (505) is connected to the water passage (504).

9. The environmentally friendly dust suppression device for construction engineering according to claim 8, characterized in that: An opening and closing control component (12) capable of closing or opening at least one nozzle rod (503) in the direction of the telescopic rod (2) is installed on the telescopic rod (2); The opening and closing control component (12) comprises a limiting hollow tube (1201) vertically mounted on the top of the lower bottom plate of the water tank (501), the limiting hollow tube (1201) passing through the upper bottom plate of the water tank (501), and a circular ring (1202) is fixedly mounted outside the portion of the limiting hollow tube (1201) located above the water tank (501); A sleeve (1203) is provided on the outer portion of the limiting hollow tube (1201) located above the circular ring (1202); the sleeve (1203) is connected to the circular ring (1202) via a second return spring (1204); and a limiting circular ring for limiting the sliding of the sleeve (1203) is fixedly installed on the top of the limiting hollow tube (1201); The opening and closing control assembly (12) further comprises an L-shaped rod (1205) fixedly mounted on the middle U-shaped rod (202) close to the top U-shaped rod (203) or on the bottom U-shaped rod (201), wherein the long end of the L-shaped rod (1205) is parallel to the telescopic rod (2); A vertical rod (1206) is installed at the top of the long end and can slide in the limiting hollow tube (1201) as the telescopic rod (2) is extended or retracted. Holes for the vertical rod (1206) to pass through are provided on the upper and lower bottom plates of the water tank (501). A pressing block (1207) for tightening or loosening the sleeve (1203) is provided on the top of the vertical rod (1206); The sleeve (1203) is hingedly connected to the outside with driving rods (1208) corresponding in number and position to the spray head rods (503); one end of the driving rod (1208) away from the sleeve (1203) is hingedly connected to the corresponding spray head rod (503).

10. The environmentally friendly dust suppression device for construction engineering according to claim 8, characterized in that: The water spray assembly (5) is provided with a blowing assembly (8) for blowing away the water mist sprayed from the water spray assembly (5); The blowing assembly (8) comprises a hydraulic rotating member (801) rotatably mounted in a water tank (501) and capable of rotating under hydraulic drive, the top of the hydraulic rotating member (801) passes through the top of the water tank (501) and extends to the outside of the water tank (501) to form an extension section, a large gear (802) is fixedly mounted outside the extension section, a gear ring (803) is rotatably mounted on the top of the water tank (501), the large gear (802) is meshed with the gear ring (803) through at least one small gear (804), the small gear (804) is rotatably mounted on the top of the water tank (501), and the gear ring (803) is fixedly connected to a fan (806) via a C-shaped rod (805).

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