Fog gun machine for building engineering construction

Abstract

The invention provides a fog gun machine for building engineering construction, which comprises a case and an air duct, fan blades are mounted in the air duct, and the fan blades are driven by a second motor to rotate and supply air to an air outlet; an atomizing water spraying assembly is mounted at one end of an air outlet of the air duct; a water tank and a high-pressure pump are installed in the machine box, and the high-pressure pump is used for pumping and pressurizing liquid in the water tank and sending the liquid to the atomization water spraying assembly. A water spraying structure and a partition mechanism are mounted in the air duct; the high-pressure pump sprays high-pressure water flow to the fan blades through the water spraying structure; the partition mechanism is arranged between the fan blades and the second motor and is driven by the second motor to realize opening and closing deformation; when water mist is blown outwards, the partition mechanism is in an unfolded state, and the interior of the air duct is communicated; when the fan blades are cleaned, the partition mechanism is in a closed state, and partition is formed between the fan blades and the second motor; the fan blades can be automatically cleaned, effective air supply is maintained, the water mist diffusion range is guaranteed, and the dust falling quality is improved.

Description

Technical Field

[0001] The present invention relates to the field of fog cannons, and more specifically, to a fog cannon for construction engineering. Background Art

[0002] The fog cannon is based on the wind delivery principle. It first uses an advanced high-pressure pump and a fine atomizing nozzle to atomize water, and then uses the fan air volume and wind pressure to send the atomized water mist to a longer distance, so that the water mist can reach a longer distance and at the same time adhere to the dust in the air to make the dust fall. It is a common dust reduction equipment in construction sites; however, it still has certain defects. For example, since the working environment is mostly dusty, during the air supply process of the fan, after long-term use, a large amount of dust will adhere to its fan blades. If it is not cleaned in time, it is easy to accumulate, especially after it is wetted, it is more likely to form lumps, affecting the normal rotation and air supply of the fan blades, and unable to send the water mist to the preset distance and range, thereby affecting its overall dust reduction effect; currently it is manually cleaned, and even the machine needs to be disassembled for cleaning, which is inconvenient to operate and needs to be improved. Summary of the invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a fog cannon for construction engineering, which can automatically clean the fan blades, maintain effective air supply, ensure the diffusion range of water mist, and improve the dust reduction quality.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention provides a fog cannon for construction engineering, comprising a chassis, a frame, and a wind tube. The frame is rotatably mounted on the top surface of the chassis, and the frame is driven to rotate by a first motor; the wind tube is rotatably mounted on the frame, and the wind tube is diagonally supported by an electric push rod, and an angle adjustment is provided; a fan blade is installed inside the wind tube, and the fan blade is driven to rotate by a second motor to deliver air toward an air outlet; an atomizing water spraying assembly is installed at one end of the air outlet of the wind tube; a water tank and a high-pressure pump are installed in the chassis, and the high-pressure pump is used to pump liquid in the water tank to increase the pressure The water is pressed to the atomizing water spray component; a water spray structure and a partition mechanism are installed inside the air duct; the water spray structure is arranged on the outside of the fan blades, and the high-pressure pump sprays high-pressure water to the fan blades through the water spray structure to clean the fan blades; the partition mechanism is arranged between the fan blades and the second motor, and the partition mechanism is driven by the second motor to realize opening and closing deformation; when the water mist is sprayed externally, the partition mechanism is in an expanded state, and the inside of the air duct is conductive; when the fan blades are to be cleaned, the partition mechanism is in a closed state, forming a partition between the fan blades and the second motor.

[0006] In a preferred technical solution of the present invention, the partition mechanism includes a transmission structure and a blocking structure; the blocking structure includes a support frame and multiple baffles. The axis of the support frame coincides with the axis of the air duct. The multiple baffles are circumferentially arrayed around the center of the support frame. One end of the baffle is rotatably connected to the support frame, and the other end is rotatably connected to the side wall of the air duct, so that the support frame is suspended at the height of the central plane of the air duct; the transmission structure is installed on the transmission shaft used to connect the second motor and the fan blade. The transmission structure only rotates in a single direction along with the transmission shaft, and the transmission structure is in transmission connection with the baffle for driving the baffle to rotate; the baffle is in a fan-shaped structure. When the multiple baffles rotate to a position parallel to the port plane of the air duct, they enclose a circular contour adapted to the inner wall shape of the air duct to form a partition; when the baffle rotates to a position perpendicular to the port plane of the air duct, there is a gap between adjacent two baffles to leave a ventilation channel.

[0007] In a preferred technical solution of the present invention, the outer contour of the support frame is in a prism shape structure. The support frame is provided with multiple first through holes corresponding to multiple edges, and the outer wall of the support frame is correspondingly provided with first round holes communicating with the first through holes; a support strip is arranged along the center line of the baffle. The top end of the support strip is rotatably connected to the barrel wall of the air duct through a support bolt; a convex column is provided at the bottom end of the support strip corresponding to the first round hole. A prism is fixedly provided at the bottom end of the convex column. The convex column rotatably passes through the first round hole, and the prism extends into the first through hole and is provided with a first gear. The first gear protrudes outside the first through hole on the side close to the transmission structure; a toothed ring is provided on the transmission structure, and the toothed ring meshes and drives with all the first gears.

[0008] In a preferred technical solution of the present invention, the transmission structure includes a support ring. The transmission shaft penetrates through the center of the support ring and is connected through a one-way bearing. The support ring only rotates in the reverse direction of the fan blade along with the transmission shaft; the toothed ring is fixedly arranged on the wall surface of the support ring close to the support frame.

[0009] In a preferred technical solution of the present invention, a cushion ring is fixedly arranged on the wall surface of the support ring close to the support frame. The cushion ring slidably abuts against the end face of the support frame; multiple locking components are installed on the support ring, and multiple locking holes are correspondingly provided on the support frame; the locking component is provided with a retractable locking tongue. When the locking tongue is inserted into the locking hole, the support ring is locked and cannot rotate, so as to lock the baffle; after the locking tongue of the locking component is retracted through adjustment, the support ring is unlocked, and the rotation of the support ring can drive the baffle to rotate.

[0010] In a preferred technical solution of the present invention, the latch assembly includes a latch tongue, a nut, and a spring; the latch tongue includes a latch head, a retaining ring, and a guide rod connected in sequence along the axial direction. The diameter of the latch head is adapted to the diameter of the lock hole; the support ring is provided with a hole position corresponding to the latch assembly. The hole position includes a first guide hole, a second guide hole, and a third guide hole that are sequentially communicated. The aperture of the second guide hole is smaller than the apertures of the first guide hole and the third guide hole; the first guide hole penetrates the end face of the cushion ring, and the diameter of the first guide hole is adapted to the diameter of the retaining ring; the aperture of the second guide hole is adapted to the diameter of the guide rod; the nut is threadedly connected and installed at the end of the guide rod, and the outer diameter of the nut is adapted to the aperture of the third guide hole; the latch tongue is installed through the hole position, and the spring is located at the first guide hole, providing an elastic force to push the latch tongue outwards; an annular sunk groove is provided on the wall surface of the support ring away from the cushion ring, and the third guide holes all fall at the sunk groove; an electromagnet is installed at the sunk groove, and a magnet block is fixedly embedded on the wall surface of the nut away from the guide rod. After the electromagnet is powered on, it magnetically attracts the nut, the retaining ring compresses the spring, and the latch head disengages from the lock hole to release the lock.

[0011] In a preferred technical solution of the present invention, the water spraying structure includes a first water spraying pipe and a second water spraying pipe arranged oppositely. The bottom ends of the first water spraying pipe and the second water spraying pipe are connected through a water delivery pipe; a backing plate is fixedly provided at the bottom of the water delivery pipe. The backing plate abuts against the inner wall of the air duct and is fixedly connected through bolts; the first water spraying pipe is located on one side close to the end of the air duct, and the first water spraying pipe is connected to a high-pressure pump through a first water delivery hose; the fan blade is correspondingly arranged between the first water spraying pipe and the second water spraying pipe, and a plurality of water spraying holes are uniformly arranged at intervals along the vertical direction on both the first water spraying pipe and the second water spraying pipe.

[0012] The beneficial effects of the present invention are as follows:

[0013] A fog cannon machine for construction engineering construction provided by the present invention includes a machine case, a frame, and an air duct. The frame is rotatably installed on the top surface of the machine case and is driven to rotate by a first motor; the air duct is rotatably installed on the frame, and an electric push rod is used to obliquely support the air duct and provide angle adjustment; a fan blade is installed inside the air duct and is driven to rotate by a second motor to send air towards the air outlet; an atomizing water spraying assembly is installed at one end of the air outlet of the air duct; a water tank and a high-pressure pump are installed inside the machine case, and the high-pressure pump is used to pump and pressurize the liquid in the water tank and send it to the atomizing water spraying assembly; through the cooperation of the high-pressure pump and the atomizing water spraying assembly, a dense water mist is sprayed at the air outlet, and the fan blade rotates at a high speed to blow the water mist outwards to diffuse, so that the water mist and water droplets come into contact with the dust in the air, causing the dust to fall, thereby achieving an effective dust reduction effect; and the frame can rotate, and the electric push rod drives the inclination angle adjustment of the air duct, which can be adjusted according to different application scenario requirements to achieve targeted use; it can also be set to rotate horizontally and swing vertically during the spraying process to further expand the coverage range and improve the dust reduction effect;

[0014] Among them, a water spray structure and a partition mechanism are installed inside the wind tube; the water spray structure is arranged on the outside of the fan blades, and the high-pressure pump sprays high-pressure water to the fan blades through the water spray structure to clean the fan blades; the high-pressure pump and the water tank are further utilized, and the fan blades are impact-cleaned by means of pressurized water spraying. The structure and principle are simple, and the utilization rate of the equipment parts is also improved;

[0015] The partition mechanism is arranged between the fan blades and the second motor, and the partition mechanism is driven by the second motor to realize opening and closing deformation; when spraying water mist outward, the partition mechanism is in an expanded state, and the inside of the air duct is conductive; when cleaning the fan blades, the partition mechanism is in a closed state, forming a partition between the fan blades and the second motor; installing an adjustable and deformable partition mechanism inside the air duct can not only meet the ventilation and air supply needs, but also effectively partition the fan blades when cleaning, prevent water droplets from splashing onto the second motor during cleaning, prevent damage to the second motor, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a fog cannon for construction engineering provided in a specific embodiment of the present invention from a first perspective;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of a fog cannon for construction engineering provided in a specific embodiment of the present invention from a second viewing angle;

[0018] Figure 3 is a cross-sectional view of a wind tube portion provided in a specific embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the three-dimensional unfolded structure of the wind tube part provided in a specific embodiment of the present invention;

[0020] Figure 5 is a schematic diagram of a closed state of a blocking mechanism provided in a specific embodiment of the present invention;

[0021] Figure 6 is a schematic diagram of an expanded state of a blocking mechanism provided in a specific embodiment of the present invention;

[0022] Figure 7 is a schematic diagram of a three-dimensional unfolded structure of a blocking mechanism provided in a specific embodiment of the present invention;

[0023] Figure 8 is a schematic diagram of the three-dimensional structure of a baffle provided in a specific embodiment of the present invention;

[0024] Figure 9 is a three-dimensional structural schematic diagram of a transmission structure provided in a specific embodiment of the present invention;

[0025] Figure 10It is a schematic diagram of a three-dimensional unfolded structure from the first perspective of the transmission structure provided in a specific embodiment of the present invention;

[0026] Figure 11 It is a schematic diagram of a three-dimensional unfolded structure from the second perspective of the transmission structure provided in a specific embodiment of the present invention;

[0027] Figure 12 It is a schematic diagram of the three-dimensional structure of the water spraying structure provided in a specific embodiment of the present invention.

[0028] In the figure:

[0029] 100, chassis; 200, air duct; 300, electric push rod; 410, fan blade; 420, second motor; 430, transmission shaft; 500, atomizing water spraying assembly; 600, water spraying structure; 610, first water spraying pipe; 620, second water spraying pipe; 630, water delivery pipe; 640, backing plate; 700, partition mechanism;

[0030] 800, transmission structure; 810, gear ring; 820, support ring; 821, hole position; 830, one-way bearing; 840, locking component; 841, locking tongue; 842, nut; 843, spring; 844, magnet block; 850, electromagnet;

[0031] 900, blocking structure; 910, support frame; 911, first through hole; 912, first round hole; 913, lock hole; 920, baffle; 921, support strip; 922, convex column; 923, prism; 930, support bolt; 940, first gear; Detailed implementation mode

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation modes.

[0033] Such as Figures 1 to 6As shown, a specific embodiment of the present invention discloses a fog cannon for construction engineering, including a chassis 100, a frame, and a wind tube 200. The frame is rotatably mounted on the top surface of the chassis, and the frame is driven to rotate by a first motor; the wind tube is rotatably mounted on the frame, and the wind tube 200 is diagonally supported by an electric push rod 300, and an angle adjustment is provided; a fan blade 410 is installed inside the wind tube 200, and the fan blade 410 is driven to rotate by a second motor 420 to deliver air toward the air outlet; an atomizing water spraying assembly 500 is installed at one end of the air outlet of the wind tube 200; a water tank and a high-pressure pump are installed in the chassis, and the high-pressure pump is used to spray liquid in the water tank The pressurized water is pumped from the body and sent to the atomizing water spray component; a water spray structure 600 and a partition mechanism 700 are installed inside the wind tube 200; the water spray structure 600 is arranged on the outside of the fan blades, and the high-pressure pump sprays high-pressure water to the fan blades 410 through the water spray structure 600 to clean the fan blades; the partition mechanism 700 is arranged between the fan blades 410 and the second motor 420, and the partition mechanism 700 is driven by the second motor 420 to achieve opening and closing deformation; when spraying water mist to the outside, the partition mechanism is in an expanded state, and the inside of the wind tube is conductive; when cleaning the fan blades, the partition mechanism is in a closed state, forming a partition between the fan blades and the second motor.

[0034] The above-mentioned fog cannon machine for construction engineering uses a high-pressure pump and an atomizing water spraying assembly to spray dense water mist at the air outlet, and the fan blades rotate at a high speed to blow the water mist outward, so that the water mist and water droplets come into contact with the dust in the air, causing the dust to fall, thereby achieving an effective dust reduction effect; and the frame can be rotated, and the electric push rod drives the wind tube to adjust the inclination angle, which can be adjusted according to the needs of different application scenarios to achieve targeted use; it can also be set to rotate horizontally and swing vertically during the spraying process, further expanding the coverage range and improving the dust reduction effect;

[0035] Among them, a water spray structure is installed inside the wind tube, and the high-pressure pump sprays high-pressure water to the fan blades through the water spray structure to clean the fan blades; the high-pressure pump and the water tank are further utilized, and the fan blades are impact-cleaned by means of pressurized water spraying. The structure and principle are simple, and the utilization rate of the equipment parts is also improved;

[0036] The partition mechanism is arranged between the fan blade and the second motor. The partition mechanism with adjustable deformation can not only meet the ventilation and air supply requirements, but also effectively partition the fan blade when cleaning it, so as to prevent water droplets from splashing onto the second motor during cleaning, thereby preventing the second motor from being damaged and prolonging its service life. The partition mechanism is driven by the second motor, which reduces the use of driving equipment and reduces costs. The overall structure is more compact, which is convenient for layout and design.

[0037] Among them, a conical cover body is provided inside the air duct. The outer wall of the cover body is fixedly connected to the inner wall of the air duct through multiple support plates. The axis of the cover body coincides with the axis of the air duct. The multiple support plates are circumferentially and arrayedly distributed around the axis of the air duct, leaving enough ventilation channels; a bracket is installed at the opening of the cover body, and the second motor is installed on the bracket. The main body of the second motor is located inside the cover body, providing good protection for the second motor and preventing damage;

[0038] In addition, the atomizing water spraying assembly includes two circular ring-shaped pipe strips, which are connected through a manifold pipe, and a water supply pipe is connected at the bottom end. The water supply pipe is connected to a high-pressure pump through a second water delivery hose. Multiple atomizing nozzles are installed on the pipe strips and are circumferentially and arrayedly distributed around the center, forming an effect of spraying refined water droplets and water mist at multiple points, so that the water mist and water droplets are blown and diffused outward along with the air flow, thereby achieving an effective dust reduction effect; it should be noted that a fog cannon machine with rotation and inclination adjustment is a common dust reduction device. The air duct, fan blades, motors, high-pressure pump, water tank, electric push rod, and atomizing nozzles are all its commonly used electrical components or structural components, which can be purchased and used on the market, and will not be elaborated here;

[0039] Furthermore, as Figures 3 to 7 shown, the partition mechanism 700 includes a transmission structure 800 and a blocking structure 900; the blocking structure 900 includes a support frame 910 and multiple baffle plates 920. The axis of the support frame 910 coincides with the axis of the air duct 200. The multiple baffle plates are circumferentially and arrayedly distributed around the center of the support frame. One end of the baffle plate 920 is rotatably connected to the support frame 910, and the other end is rotatably connected to the side wall of the air duct 200, so that the support frame is suspended at the height of the central plane of the air duct; the support frame is connected to the multiple baffle plates, and the baffle plates can only rotate around the center line, which limits the support frame from rotating or moving, meaning that the position of the support frame is fixed;

[0040] The transmission structure 800 is installed on the transmission shaft 430 used to connect the second motor 420 and the fan blades 410. The transmission structure 800 only rotates in a single direction along with the transmission shaft 430, and the transmission structure 800 is in transmission connection with the baffle plate 920 for driving the baffle plate to rotate; with this transmission cooperation, the second motor drives the baffle plate to rotate and swing, eliminating the need to additionally install a driving power structure, which can reduce production costs and also reduce the occupation of internal space, maintaining the smoothness of the air supply channel;

[0041] The baffle plate is in a fan-shaped structure. When the multiple baffle plates rotate to a position parallel to the port plane of the air duct, they enclose a circular shape contour that fits the inner wall shape of the air duct, forming a partition; when the baffle plates rotate to a position perpendicular to the port plane of the air duct, there is a gap between adjacent baffle plates, leaving a ventilation channel; the opening and closing actions are realized through a simple rotation method, and both the structure and the actions are simple, which is convenient for processing production and layout assembly;

[0042] Further, when the baffle is swung to the open position, it corresponds to the position of the shelf plate, which is equivalent to overlapping, reducing the space occupation, maintaining the correspondence and communication of the air supply channel, reducing the blockage of the air flow, and maintaining sufficient wind force.

[0043] Further, as Figure 7 , Figure 8 shown, the outer contour of the support frame is a prism-shaped structure. A plurality of first through holes 911 are provided on the support frame 910 corresponding to a plurality of edges. A first round hole 912 communicating with the first through holes 911 is provided on the outer wall of the support frame 910; a support strip 921 is provided on the baffle 920 along the center line. The top end of the support strip 921 is rotationally connected to the barrel wall of the air duct 200 through a support bolt 930; a convex column 922 is provided at the bottom end of the support strip 921 corresponding to the first round hole. A prism 923 is fixedly provided at the bottom end of the convex column 922. The convex column 922 is rotationally inserted into the first round hole 912, and the prism 923 extends into the first through hole and is provided with a first gear 940. The side of the first gear 940 close to the transmission structure 800 protrudes outside the first through hole 911; a toothed ring 810 is provided on the transmission structure 800, and the toothed ring 810 meshes and drives with all the first gears 940; through the above structure, the installation and cooperation and construction among the baffle, the support frame and the air duct are realized, and the baffle is also effectively matched with the first gear, and the transmission between the baffle and the transmission structure is realized through the meshing of the first gear and the toothed ring.

[0044] Further, as Figures 9 to 11 shown, the transmission structure 800 includes a support ring 820. The transmission shaft 430 passes through the center of the support ring 820 and is connected through a one-way bearing 830. The support ring only rotates in the reverse direction of the fan blade along with the transmission shaft; the toothed ring is fixedly provided on the wall surface of the support ring close to the support frame; the one-way rotation of the support ring is limited through the one-way bearing. When the second motor drives the fan blade to rotate, the support ring will not be driven to rotate, which can reduce the running load of the second motor, avoid affecting the rotation speed of the fan blade, and maintain a good air supply effect.

[0045] Further, a cushion ring is fixedly provided on the wall surface of the support ring close to the support frame, and the cushion ring slides against the end face of the support frame; a plurality of locking components 840 are installed on the support ring 820, and a plurality of lock holes 913 are correspondingly provided on the support frame 910; the locking component is provided with a retractable locking tongue. When the locking tongue is inserted into the lock hole, the support ring is locked and cannot rotate, so as to lock the baffle; after the locking tongue of the locking component is retracted through adjustment, the support ring is unlocked, and the rotation of the support ring can drive the baffle to rotate; the design of the locking component is mainly to limit the support ring so that it cannot rotate relative to the support frame, and there will be no meshing rotation between the toothed ring and the first gear, the first gear will not rotate, and the baffle will be maintained at the required placement position, stably realizing its corresponding effect.

[0046] Further, the locking component 840 includes a locking tongue 841, a nut 842, and a spring 843; the locking tongue 841 includes a chuck, a retaining ring, and a guide rod that are sequentially connected along the axial direction, and the diameter of the chuck is adapted to the diameter of the lock hole; the support ring 820 is provided with a hole position 821 corresponding to the locking component, and the hole position includes a first guide hole, a second guide hole, and a third guide hole that are sequentially communicated, and the aperture of the second guide hole is smaller than the apertures of the first guide hole and the third guide hole; the first guide hole penetrates through the end face of the gasket ring, and the diameter of the first guide hole is adapted to the diameter of the retaining ring; the aperture of the second guide hole is adapted to the diameter of the guide rod; the nut is threadedly connected and installed at the end of the guide rod, and the outer diameter of the nut is adapted to the aperture of the third guide hole; the locking tongue is inserted and installed at the hole position, and the spring is located at the first guide hole to provide an elastic force for ejecting the locking tongue outward; the overall structure is relatively simple, and locking is carried out in an elastic telescopic manner, and the required locking effect can be continuously maintained, that is, the placement position of the baffle is maintained;

[0047] An annular sunk groove is provided on the wall surface of the support ring away from the gasket ring, and the third guide holes all fall at the sunk groove; an electromagnet 850 is installed at the sunk groove, and a magnet block 844 is fixedly embedded on the wall surface of the nut 842 away from the guide rod. After the electromagnet is powered on, the nut is magnetically attracted, and the retaining ring compresses the spring, so that the chuck disengages from the lock hole to release the lock; using an electromagnet as the driving component for unlocking the locking component has a simple structure, can drive multiple locking components at the same time, and is convenient to use and operate;

[0048] Further, a cover plate is installed on one side of the wall surface of the support ring away from the gasket ring, and the electromagnet is fixedly installed on the cover plate by bolts, providing an installation site, which is convenient for disassembly and assembly; it is also used to shield and protect the electromagnet, playing a waterproof protection effect; a wire hole for the external wiring of the electromagnet is provided on the cover plate, and a waterproof effect is achieved by plugging a wire plug at the wire hole; and, a conductive slip ring is installed on the transmission shaft, and the electromagnet is externally powered through the conductive slip ring;

[0049] Further, a first through hole is provided on the bottom surface of the air duct corresponding to the wiring of the conductive slip ring and the second motor. A wire tube is provided outside the top end of the first through hole, which has the effect of threading the wire and can also prevent the liquid flowing back downward from falling from this part; it should be noted that the wiring is electrically connected to the electric control box installed on the outer wall of the chassis for unified regulation;

[0050] Further, a chamfer is provided at the edge of the end face of the chuck, which can facilitate the smooth insertion of the chuck into the lock hole for effective locking; it should be noted that the number of lock holes is an integer multiple of the locking components, and the positions are matched correspondingly; at least it can be locked when the partition mechanism is in the open or closed state position;

[0051] Further, as Figure 12As shown, the water spraying structure 600 includes a first water spraying pipe 610 and a second water spraying pipe 620 which are oppositely arranged. The bottom ends of the first water spraying pipe 610 and the second water spraying pipe 620 are connected through a water delivery pipe 630. A backing plate 640 is fixedly arranged at the bottom of the water delivery pipe 630. The backing plate 640 abuts against the inner wall of the air duct 200 and is fixedly connected by bolts. The first water spraying pipe is located on one side close to the end of the air duct, and the first water spraying pipe is connected to a high-pressure pump through a first water delivery hose. The fan blades are correspondingly arranged between the first water spraying pipe and the second water spraying pipe. A plurality of water spraying holes are uniformly arranged at intervals along the vertical direction on both the first water spraying pipe and the second water spraying pipe.

[0052] A three-way solenoid valve is installed at the output port of the high-pressure pump. The two outlets are respectively connected with a first water delivery hose and a second water delivery hose. The first water delivery hose delivers water towards the water spraying structure, and the second water delivery hose delivers water towards the atomizing water spraying assembly, and corresponding water delivery is carried out according to different operation requirements.

[0053] The water spraying holes of the first water spraying pipe are arranged facing the second water spraying pipe. The water spraying holes of the second water spraying pipe are correspondingly arranged obliquely towards the incoming direction side of the fan blades. Among them, the inclined setting of the second water spraying pipe can reversely impact the fan blades, further strengthening the impact on the fan blades and enhancing the cleaning effect. The water spraying holes of the first water spraying pipe can also effectively impact the rotating fan blades to achieve the cleaning effect. It is correspondingly arranged with the second water spraying pipe. When it just rotates to the empty position of the fan blades, the sprayed water flow will also be sprayed to the second water spraying pipe and will not penetrate deep into the center of the air duct, reducing adverse effects.

[0054] It should be noted that the air duct is spliced by multiple sections of cylinders. Especially for the parts of the water spraying structure and the fan blades, a detachable structure needs to be set. First, the fan blades need to be installed on the transmission shaft, then the water spraying structure is moved to the outside of the fan blades, and then this section of the cylinder is installed to avoid installation interference problems.

[0055] It should be noted that when the fan blades need to be cleaned, the electric push rod needs to be started to make it in an inclined placement state with the air outlet facing upwards, which can prompt the cleaning water to flow downward and accelerate the external discharge.

[0056] More specifically, when cleaning the fan blades, it includes the following steps:

[0057] S1, start the first motor to drive the frame to rotate to a preset cleaning position; at least make the end of the air duct deviate from the electric control box.

[0058] S2, start the electric push rod to make one end of the air outlet of the air duct tilt upwards to a preset inclination angle.

[0059] S3, start the second motor to reverse a preset angle to make the baffle rotate to a cut-off state and lock it through the locking component; prevent the baffle from being opened due to the influence of wind force.

[0060] S4. Start the second motor to rotate forward, driving the fan blade to rotate;

[0061] S5. Close the water outlet of the three-way solenoid valve corresponding to the second water delivery hose, connect the water outlet of the corresponding first water delivery hose, and start the high-pressure pump to pump high-pressure water flow to the water spraying structure. The water flow impacts towards the direction of the high-speed rotating fan blade through the first water spraying pipe and the second water spraying pipe, thereby effectively cleaning the fan blade;

[0062] S6. After the cleaning is completed, stop the high-pressure pump and close the three-way solenoid valve; the second motor continues to operate for a preset duration to dry the water droplets adhered to the fan blade;

[0063] S7. After the drying action is completed, the second motor rotates in reverse and rotates a preset angle to rotate the baffle to the unfolded state and lock it through the locking component;

[0064] S8. The second motor drives the fan blade to rotate again to dry the water droplets adhered to the baffle, and stop the second motor after the operation is completed.

[0065] The present invention is described by way of preferred embodiments. Those skilled in the art will know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. A fog cannon for construction engineering, comprising a chassis, a frame, and a wind tube, wherein the frame is rotatably mounted on the top surface of the chassis, and the frame is driven to rotate by a first motor; the wind tube is rotatably mounted on the frame, and the wind tube is diagonally supported by an electric push rod, and an angle adjustment is provided; a fan blade is installed inside the wind tube, and the fan blade is driven to rotate by a second motor to deliver air toward an air outlet; an atomizing water spraying assembly is installed at one end of the air outlet of the wind tube; a water tank and a high-pressure pump are installed in the chassis, and the high-pressure pump is used to pump and pressurize the liquid in the water tank and deliver it to the atomizing water spraying assembly; the characteristics are: A water spray structure and a partition mechanism are installed inside the air duct; The water spray structure is arranged on the outside of the fan blades, and the high-pressure pump sprays high-pressure water to the fan blades through the water spray structure to clean the fan blades; The partition mechanism is arranged between the fan blade and the second motor, and the partition mechanism is driven by the second motor to realize opening and closing deformation; When water mist is sprayed outward, the partition mechanism is in an extended state, and the inside of the air duct is open; When the fan blades are cleaned, the partition mechanism is in a closed state, forming a partition between the fan blades and the second motor.

2. The fog cannon for construction engineering according to claim 1, characterized in that: The partition mechanism includes a transmission structure and a blocking structure; The blocking structure includes a support frame and a plurality of baffles. The axis of the support frame coincides with the axis of the wind tube. The plurality of baffles are arranged in an array around the central circumference of the support frame. One end of the baffle is rotatably connected to the support frame, and the other end is rotatably connected to the side wall of the wind tube, so that the support frame is suspended at the central plane height of the wind tube. The transmission structure is installed on the transmission shaft used to connect the second motor and the fan blades. The transmission structure rotates only in a single direction along with the transmission shaft, and the transmission structure is connected to the baffle plate for driving the baffle plate to rotate. The baffle is in a fan-shaped structure. When the multiple baffles are rotated to a position parallel to the port plane of the air duct, the baffle is enclosed into a circular profile that matches the shape of the inner wall of the air duct to form a partition; When the baffle is rotated to a position perpendicular to the port plane of the air duct, two adjacent baffles are spaced apart to leave a ventilation channel.

3. The fog cannon for construction engineering according to claim 2, characterized in that: The outer contour of the support frame is an angular structure, a plurality of first through holes are provided on the support frame corresponding to the plurality of edges, and a first circular hole communicating with the first through holes is provided on the outer wall of the support frame correspondingly; A support bar is provided along the center line of the baffle, and the top end of the support bar is rotatably connected to the cylinder wall of the wind tube through a support bolt; a convex column is provided at the bottom end of the support bar corresponding to the first circular hole, and a prism is fixed at the bottom end of the convex column, and the convex column is rotatably penetrated through the first circular hole, and the prism extends into the first through hole, and a first gear is installed, and the side of the first gear close to the transmission structure protrudes outside the first through hole; A gear ring is arranged on the transmission structure, and the gear ring is meshed with all the first gears for transmission.

4. The fog cannon for construction engineering according to claim 3, characterized in that: The transmission structure includes a support ring, a transmission shaft passes through the center of the support ring and is connected by a one-way bearing, and the support ring only rotates with the transmission shaft in the reverse direction of the fan blades; The gear ring is fixedly arranged on the wall surface of the support ring close to the support frame.

5. The fog cannon for construction engineering according to claim 4, characterized in that: A cushion ring is fixedly provided on the wall surface of the support ring close to the support frame, and the cushion ring slidably abuts against the end face of the support frame; A plurality of locking components are installed on the support ring, and a plurality of lock holes are correspondingly provided on the support frame; The locking component is provided with a retractable lock tongue. When the lock tongue is inserted into the lock hole, the support ring is locked and cannot rotate, thereby locking the baffle; After the locking component retracts the lock tongue through adjustment, the support ring is unlocked, and the rotation of the support ring can drive the baffle to rotate.

6. The fog cannon machine for construction engineering construction according to claim 5, wherein: The locking component includes a lock tongue, a nut, and a spring; The lock tongue includes a chuck, a retaining ring, and a guide rod sequentially connected along the axial direction. The diameter of the chuck is adapted to the diameter of the lock hole; The support ring is provided with hole positions corresponding to the locking components. The hole positions include a first guide hole, a second guide hole, and a third guide hole that are sequentially communicated. The aperture of the second guide hole is smaller than the apertures of the first guide hole and the third guide hole; The first guide hole penetrates the end face of the cushion ring, and the diameter of the first guide hole is adapted to the diameter of the retaining ring; The aperture of the second guide hole is adapted to the diameter of the guide rod; the nut is threadedly connected and installed at the end of the guide rod, and the outer diameter of the nut is adapted to the aperture of the third guide hole; the lock tongue is inserted and installed at the hole position, and the spring is located at the first guide hole to provide an outward ejecting elastic force for the lock tongue; An annular sinking groove is provided on the wall surface of the support ring away from the cushion ring, and all the third guide holes are located at the sinking groove; An electromagnet is installed at the sinking groove, and a magnet block is fixedly embedded on the wall surface of the nut away from the guide rod. After the electromagnet is powered on, the nut is magnetically attracted, the retaining ring compresses the spring, and the chuck is disengaged from the lock hole to release the lock.

7. The fog cannon machine for construction engineering construction according to claim 1, wherein: The water spraying structure includes a first water spraying pipe and a second water spraying pipe arranged oppositely. The bottoms of the first water spraying pipe and the second water spraying pipe are communicated through a water delivery pipe; a cushion plate is fixedly provided at the bottom of the water delivery pipe, and the cushion plate abuts against the inner wall of the air duct and is fixedly connected by bolts; The first water spraying pipe is located on one side close to the end of the air duct, and the first water spraying pipe is communicated with a high-pressure pump through a first water delivery hose; The fan blades are correspondingly arranged between the first water spraying pipe and the second water spraying pipe. A plurality of water spraying holes are uniformly arranged at intervals along the vertical direction on both the first water spraying pipe and the second water spraying pipe.

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