A construction engineering dust falling device

Abstract

The application discloses a kind of building engineering dust falling device, belong to building construction dust falling technical field, including water tank and spray mechanism, adjustable double-cylinder supercharging mechanism is equipped with between the water tank and spray mechanism, installation support is equipped with above the water tank, height adjusting mechanism is equipped with above the installation support, the spray mechanism is equipped on height adjusting mechanism, height detection linkage mechanism is equipped on the spray mechanism, adjustable double-cylinder supercharging mechanism includes bottom plate and two groups of supercharged water cylinder being equipped on bottom plate, piston linkage mechanism is commonly connected between two groups of supercharged water cylinder, adjustable reciprocating drive is equipped on the bottom plate, the output end of adjustable reciprocating drive is connected with piston linkage mechanism, adjustable reciprocating drive is electrically connected with height detection linkage mechanism.The building engineering dust falling device provided in the application can adjust the spraying height, and the droplet size of the spray is automatically adjusted with the spraying height to effectively reduce dust at different heights.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building construction dust reduction, and particularly relates to a building engineering dust reduction device. BACKGROUND

[0002] When building construction is carried out, there are too much dust on the construction site, in order to prevent the dust from escaping and affecting the surrounding staff, a dust reduction device is usually arranged on the construction site, and water mist sprayed by the dust reduction device is used to suppress the spread of dust. The existing dust reduction method is carried out by atomizing water through a spray head, and in order to improve the spraying range, the spray head is usually arranged to swing up and down so as to spray dust at different heights.

[0003] However, the dust characteristics corresponding to different heights are different, and different particle sizes of mist droplets are needed to effectively capture. The dust at low places is mainly from material loading and unloading, dumping, stirring and ground dust, and the particles are relatively large and settle quickly, so medium to large particle size mist droplets are needed. The dust at medium places has been diffused into the air, and the dust particle size is mixed, so fine to medium particle size mist droplets are needed. The dust at high places is usually very small dust particles, light in weight, and can be suspended in the air for a long time, so smaller mist droplets are needed to increase the collision probability with the dust. The higher the position of the dust, the smaller the particle size of the mist droplets needed.

[0004] However, the existing up-and-down swinging spray mechanism does not have a corresponding adjusting mechanism, and the particle size of the sprayed mist droplets is constant, which may have the defects that the mist droplets at high places are too large or the mist droplets at low places are too small. If the mist droplets at high places are too large, the large mist droplets will directly pass by the small dust, cannot effectively collide with the dust, and cannot effectively reduce dust. If the mist droplets at low places are too small, the fine mist may be blown away by the airflow below, cannot effectively wet the heavy material, has poor dust suppression effect, and may cause excessive humidity in the environment around the equipment. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the application provides a building engineering dust reduction device which can adjust the spraying height, and the particle size of the sprayed mist droplets is automatically adjusted with the spraying height, so as to effectively reduce dust at different heights.

[0006] The technical scheme adopted by the present application is as follows: the building engineering dust falling device provided by the present application comprises a water tank and a spraying mechanism, an adjustable double-cylinder pressurizing mechanism is arranged in communication between the water tank and the spraying mechanism, the adjustable double-cylinder pressurizing mechanism is arranged on the upper wall of the water tank, an installation support is arranged above the water tank, a height adjusting mechanism is arranged above the installation support, the spraying mechanism is arranged on the height adjusting mechanism, a height detection linkage mechanism for detecting the height of the spraying mechanism is arranged on the spraying mechanism, the adjustable double-cylinder pressurizing mechanism comprises a bottom plate and two groups of pressurizing water cylinders arranged on the bottom plate, the bottom plate is arranged on the water tank, a one-way water pumping pipeline is arranged in communication between each group of pressurizing water cylinders and the water tank, a one-way water discharging pipeline is arranged in communication between each group of pressurizing water cylinders and the spraying mechanism, a pressurizing piston is slidably and sealingly arranged in each pressurizing water cylinder, a piston linkage mechanism is arranged in common between the two groups of pressurizing water cylinders, the two ends of the piston linkage mechanism are connected with the pressurizing pistons of the two groups of pressurizing water cylinders and drive the pressurizing pistons to slide in the axial direction, an adjustable reciprocating drive is arranged on the bottom plate, the output end of the adjustable reciprocating drive is connected with the piston linkage mechanism, the adjustable reciprocating drive is electrically connected with the height detection linkage mechanism, the adjustable reciprocating drive adjusts the size of the output force of the adjustable reciprocating drive according to the height detected by the height detection linkage mechanism, and then adjusts the size of the force acting on the pressurizing pistons by the piston linkage mechanism, so that the water pressure of the water flow output from the pressurizing water cylinders to the spraying mechanism changes, the higher the height of the spraying mechanism, the greater the output force of the adjustable reciprocating drive, the greater the force acting on the pressurizing pistons by the piston linkage mechanism, and the greater the water pressure, and the smaller the particle size of the mist droplets sprayed by the spraying mechanism.

[0007] Preferably, the height detection linkage mechanism comprises a distance measuring sensor, a self-adjusting support is arranged on the outer bottom wall of the spraying mechanism, an eccentric block is rotatably arranged in the self-adjusting support, the eccentric block is rotatably arranged between the self-adjusting supports, the distance measuring sensor is arranged on the bottom wall of the eccentric block, under the action of gravity, the eccentric block drives the distance measuring sensor to always vertically downward when the eccentric block moves up and down on the spraying mechanism, the distance measuring sensor detects the height of the end of the spraying mechanism to the installation support, a controller is arranged on the bottom plate, and the controller is electrically connected with the adjustable reciprocating drive and the distance measuring sensor.

[0008] Preferably, the adjustable reciprocating drive comprises a transmission mechanism and a lever type force adjusting reciprocating mechanism, support frames are symmetrically arranged in the middle of the bottom plate, the transmission mechanism is arranged on the support frames, the transmission mechanism is arranged between the lever type force adjusting reciprocating mechanism and the piston linkage mechanism, the lever type force adjusting reciprocating mechanism is electrically connected with the controller, and the transmission mechanism transmits the reciprocating power generated by the lever type force adjusting reciprocating mechanism to the piston linkage mechanism to drive the piston linkage mechanism to move reciprocally.

[0009] More specifically, the two groups of pressurized water cylinders are provided with sliding through holes on the sides away from the one-way drainage pipeline, and the two groups of pressurized water cylinders are symmetrically arranged, the piston linkage mechanism comprises a sliding rod, the sliding rod is connected between the two groups of pressurized water cylinders, the sliding rod is connected between the pressurized pistons of the two groups of pressurized water cylinders, and the sliding rod slides through the sliding through holes.

[0010] Further, the output end of the transmission mechanism is connected with the sliding rod, the transmission mechanism comprises a driving rack, a stroke amplification type transmission gear set and a concentric driving gear, the sliding rod is arranged between the support frames, the side wall of the sliding rod is provided with a sliding rack in the axial direction, one side of the sliding through hole is provided with a side hole matched with the sliding rack, the upper end of the support frame is rotatably provided with a transmission shaft, the concentric driving gear is coaxially and fixedly connected on the transmission shaft, the concentric driving gear is arranged between the support frames, the concentric driving gear is meshed with the sliding rack, the concentric driving gear rotates to drive the sliding rack to slide, the side wall of the support frame is provided with a sliding rail, a sliding block is slidably connected in the sliding rail, the sliding block is in the shape of an I-beam, the driving rack is arranged on the upper wall of the sliding block, the lever type force adjusting reciprocating mechanism is arranged on the side wall of the support frame and below the sliding block, the sliding block is arranged at the output end of the lever type force adjusting reciprocating mechanism, the stroke amplification type transmission gear set is arranged on the side wall of the support frame, the driving rack is meshed with the stroke amplification type transmission gear set, and the stroke amplification type transmission gear set is connected with the transmission shaft.

[0011] The lever type force adjusting reciprocating mechanism drives the driving rack to reciprocate and slide through the sliding block, the driving rack drives the concentric driving gear to reciprocate and rotate through the stroke amplification type transmission gear set, the concentric driving gear drives the sliding rod to reciprocate and slide through the sliding rack, the sliding rod drives the two groups of pressurized pistons to reciprocate and slide, and when one group of pressurized pistons slides outward along the pressurized water cylinder, the sliding rod drives the other group of pressurized pistons to move inward along the pressurized water cylinder, so that one group of pressurized water cylinders pumps water and the other group of pressurized water cylinders discharges water.

[0012] More specifically, the lever type force adjusting reciprocating mechanism comprises a lever, a reciprocating electric push rod, a swing shaft, a force adjusting electric push rod and an output card shaft, the swing shaft is arranged on the side wall of the support frame, the lever is rotatably arranged on the swing shaft, the bottom end of the sliding block is provided with a connecting rod, the connecting rod is provided with a strip-shaped sliding hole in the length direction, the bottom end of the lever is provided with a driving shaft, the force adjusting electric push rod is arranged on the upper part of the side wall of the lever, the upper end of the force adjusting electric push rod is provided with an adjusting block, the output card shaft is arranged on the side of the adjusting block close to the connecting rod, the output card shaft is slidably arranged in the strip-shaped sliding hole, one end of the reciprocating electric push rod is rotatably arranged on the side wall of the support frame, and the other end of the reciprocating electric push rod is rotatably connected with the driving shaft.

[0013] The periodic reciprocating stretching and shrinking of the reciprocating electric push rod drives the lever to reciprocate around the swing shaft, i.e. the fulcrum of the lever. The reciprocating electric push rod applies force to the lever through the driving shaft, and outputs the force through the output shaft. According to the lever principle, the output force is greater when the resistance arm is shorter, provided that the force point and the force size are unchanged. Therefore, the output force of the lever is greater when the distance between the output shaft and the fulcrum is shorter. The force output by the lever to the slider can be adjusted by controlling the stretching and shrinking of the force-adjusting electric push rod, so as to adjust the force acting on the supercharging piston.

[0014] The reciprocating electric push rod comprises a driving motor, a line-moving sliding cavity, a reciprocating screw rod and a telescopic sliding tube. The reciprocating screw rod is rotatably arranged in the line-moving sliding cavity, and the line-moving sliding cavity is rotatably arranged on the side wall of the support frame. A threaded sliding seat matched with the reciprocating screw rod is arranged in the line-moving sliding cavity. The reciprocating screw rod is threadedly connected with the threaded sliding seat, and the threaded sliding seat is slidingly connected with the line-moving sliding cavity. A telescopic through hole is arranged on the side of the line-moving sliding cavity close to the driving shaft. One end of the telescopic sliding tube is fixedly connected to the side wall of the threaded sliding seat, and the other end of the telescopic sliding tube passes through the telescopic through hole and extends out of the line-moving sliding cavity. The telescopic sliding tube is coaxially arranged outside the reciprocating screw rod. The end of the telescopic sliding tube away from the threaded sliding seat is rotatably connected with the driving shaft. The driving motor is arranged on the side wall of the line-moving sliding cavity. The output shaft of the driving motor and the reciprocating screw rod are coaxially connected with transmission gears, respectively. The two transmission gears are engaged.

[0015] The driving motor drives the reciprocating screw rod to rotate through the two engaged transmission gears. The reciprocating screw rod drives the threaded sliding seat to reciprocally slide along the line-moving sliding cavity. The threaded sliding seat drives the telescopic sliding tube to reciprocally slide and stretch along the line-moving sliding cavity.

[0016] More specifically, the stroke amplification type transmission gear set comprises a driven gear, a transmission gear one and a transmission gear two. The side wall of the support frame is provided with a concentric shaft. The transmission gear one and the driven gear are coaxially fixedly connected to the concentric shaft. The transmission gear two is coaxially fixedly connected to the transmission shaft. The driven gear is engaged with the driving rack. The transmission gear one is engaged with the transmission gear two. The reciprocally sliding driving rack drives the driven gear to reciprocate. The driven gear drives the transmission gear one to reciprocate through the concentric shaft. The transmission gear one drives the transmission gear two to reciprocate. The transmission gear two drives the concentric driving gear to reciprocate through the transmission shaft. The number of teeth of the driven gear is less than that of the concentric driving gear.

[0017] The height adjusting mechanism comprises an electric push rod and a spraying support, the spraying support is rotationally arranged above a mounting support, the spraying support is arranged in a U shape, the spraying mechanism comprises a dust falling cylinder, a fan, an annular water pipe, atomizing nozzles and a water supply pipe, the dust falling cylinder is rotationally arranged in the spraying support, two ends of the electric push rod are rotationally connected with a bottom wall of the spraying support and a bottom wall of the dust falling cylinder respectively, the fan is arranged in the dust falling cylinder, the annular water pipe is coaxially arranged on an inner wall of one end of the dust falling cylinder away from the fan, the atomizing nozzles are communicatively arranged on side walls of the annular water pipe, the atomizing nozzles are equidistantly arranged along the annular water pipe, the water supply pipe is communicatively arranged between the annular water pipe and a one-way water drainage pipe, the height detection linkage mechanism is arranged on an outer bottom wall of the dust falling cylinder close to the atomizing nozzles, the mounting support is below a swing motor, an output end of the swing motor is connected with the spraying support, the swing motor drives the spraying support to reciprocally rotate, the spraying support drives the dust falling cylinder to swing left and right, so that the spraying angle is adjusted, the electric push rod drives the dust falling cylinder to swing up and down, so that the pitch angle of the dust falling cylinder is adjusted, the spraying height is adjusted, and the swing motor and the electric push rod are cooperated to realize multi-angle coverage dust falling of the spraying mechanism.

[0018] The one-way water pumping pipe comprises a water pumping hose and a water pumping one-way valve, one side of the pressurized water cylinder away from the sliding through hole is provided with a water pumping hole, the water pumping one-way valve is arranged at the water pumping hole, the water pumping hose is communicatively arranged between the water pumping one-way valve and the water tank, the one-way water drainage pipe comprises a water drainage hose and a water drainage one-way valve, one side of the pressurized water cylinder away from the sliding through hole is provided with a water drainage hole, the water drainage one-way valve is arranged at the water drainage hole, and the water drainage hose is communicatively arranged between the water drainage one-way valve and the water supply pipe.

[0019] The application has the following beneficial effects by adopting the above structure:

[0020] 1. The spraying height is detected in real time by the height detection linkage mechanism and is fed back to the adjustable double-cylinder pressurizing mechanism, so that the water pressure is automatically adjusted, the droplet size is automatically adjusted according to the height, small droplets are sprayed at a high place, large droplets are sprayed at a low place, and the dust capture requirement at different heights is met.

[0021] 2. The droplet size is matched with the dust height, the dust capture efficiency is improved, the problems that fine water mist is blown away at a low altitude and that thick water mist is ineffective at a high altitude are avoided, water and energy are saved, and the ground is not muddy.

[0022] 3. The double pressurized water cylinders are symmetrically arranged, the piston linkage mechanism is adopted to realize alternating water pumping and water drainage, the water supply is continuously and stably ensured, the structure is compact, the efficiency is high, and the long-time continuous operation is suitable.

[0023] 4. The design of alternating operation of the dual cylinders not only ensures the continuity of water supply, but also means that the system load is shared by the two cylinders, reducing the fatigue wear of individual components and improving the overall lifespan and reliability of the system.

[0024] 5. The spraying mechanism can achieve up-and-down pitching and left-and-right swinging through an electric push rod and a swing motor, realizing three-dimensional, multi-angle spraying with a wide coverage area.

[0025] 6. This solution converts changes in the height signal into changes in the length of the lever resistance arm. The higher the spray mechanism, the shorter the extension length of the force-adjusting electric push rod, the smaller the distance from the output pin to the swing shaft, the greater the output force of the lever-type force-adjusting reciprocating mechanism, and the greater the force of the piston linkage mechanism acting on the booster piston, thus increasing the water pressure. This achieves control over the water pressure without manual intervention, greatly reducing the labor intensity of operators and minimizing the possibility of poor results due to human error.

[0026] 7. The use of a booster water cylinder to supply water to the spray mechanism can easily achieve high-pressure output, meeting the water pressure required by the atomizing nozzle, and the cost is relatively low. In addition, the use of a lever-type force-adjusting reciprocating mechanism drives the booster piston to move back and forth through a purely mechanical transmission structure to ensure stable and continuous water supply, making it more durable and stable in construction site environments. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a dust suppression device for construction engineering provided by the present invention;

[0028] Figure 2 This is a structural schematic diagram of a dust suppression device for construction engineering provided by the present invention from another perspective;

[0029] Figure 3 A schematic diagram of the combined structure of the adjustable dual-cylinder booster mechanism and the housing provided by the present invention;

[0030] Figure 4 The front view of the adjustable dual-cylinder booster mechanism, slide bar, and adjustable reciprocating drive provided by the present invention;

[0031] Figure 5 This is a schematic diagram of the adjustable dual-cylinder booster mechanism, slide bar, and adjustable reciprocating drive provided by the present invention.

[0032] Figure 6 A schematic diagram of the adjustable dual-cylinder booster mechanism, slide bar, and adjustable reciprocating drive provided by the present invention from another perspective;

[0033] Figure 7 A cross-sectional view of the adjustable dual-cylinder booster mechanism, slide bar, and adjustable reciprocating drive provided by the present invention;

[0034] Figure 8 forFigure 1 A partial enlarged view of part A in the figure;

[0035] Figure 9 Structure diagram of the slide rod, the pressurized piston and the adjustable reciprocating drive provided by the present application;

[0036] Figure 10 Structure diagram of the slide rod, the pressurized piston and the adjustable reciprocating drive provided by the present application from another perspective;

[0037] Figure 11 Structure diagram of the pressurized water cylinder provided by the present application;

[0038] Figure 12 Sectional view of the reciprocating electric push rod provided by the present application.

[0039] In the figure, 1 is a water tank, 2 is a spraying mechanism, 3 is an adjustable double-cylinder pressurizing mechanism, 4 is a mounting bracket, 5 is an electric push rod, 6 is a height detection linkage mechanism, 7 is a bottom plate, 8 is a pressurized water cylinder, 9 is a one-way water pumping pipeline, 10 is a one-way water draining pipeline, 11 is a pressurized piston, 12 is a slide rod, 13 is an adjustable reciprocating drive, 14 is a distance measuring sensor, 15 is a controller, 16 is a transmission mechanism, 17 is a lever type force-adjusting reciprocating mechanism, 18 is a sliding through-hole, 19 is a water draining one-way valve, 20 is a connecting rod, 21 is a stroke amplifying type transmission gear set, 22 is a concentric drive gear, 23 is a sliding rack, 24 is a side hole, 25 is a transmission shaft, 26 is a strip-shaped sliding hole, 27 is a driving rack, 28 is an adjusting block, 29 is a slide rail, 30 is a sliding block, 31 is a lever, 32 is a reciprocating electric push rod, 33 is a swing shaft, 34 is a force-adjusting electric push rod, 35 is an output stub shaft, 36 is a wire displacement sliding cavity, 37 is a reciprocating screw, 38 is a threaded slide, 39 is a driven gear, 40 is a transmission gear one, 41 is a transmission gear two, 42 is a concentric shaft, 43 is a spraying support, 44 is a dust falling cylinder, 45 is a fan, 46 is an annular water pipe, 47 is an atomizing nozzle, 48 is a water supply pipe, 49 is a swing motor, 50 is a water pumping hose, 51 is a water pumping one-way valve, 52 is a water draining hose, 53 is a cover shell, 54 is a self-adjusting support, 55 is an eccentric block, 56 is a support frame, 57 is a driving motor, 58 is a telescopic sliding pipe, 59 is a telescopic through-hole, and 60 is a driving shaft.

[0040] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and are used to explain the present application, but do not constitute a limitation of the present application. DETAILED DESCRIPTION

[0041] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0042] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] As Figures 1-12 shown, the building engineering dust falling device provided by the present application comprises a water tank 1 and a spraying mechanism 2, a adjustable double-cylinder supercharging mechanism 3 is arranged in communication between the water tank 1 and the spraying mechanism 2, the adjustable double-cylinder supercharging mechanism 3 is arranged on the upper wall of the water tank 1, an installation support 4 is arranged above the water tank 1, a height adjusting mechanism is arranged above the installation support 4, the spraying mechanism 2 is arranged on the height adjusting mechanism, a height detection linkage mechanism 6 for detecting the height of the spraying mechanism 2 is arranged on the spraying mechanism 2, the adjustable double-cylinder supercharging mechanism 3 comprises a bottom plate 7 and two groups of supercharging water cylinders 8 arranged on the bottom plate 7, the bottom plate 7 is arranged on the water tank 1, a one-way water pumping pipeline 9 is arranged in communication between each group of supercharging water cylinders 8 and the water tank 1, a one-way water discharging pipeline 10 is arranged in communication between each group of supercharging water cylinders 8 and the spraying mechanism 2, a supercharging piston 11 is slidably and sealingly arranged in each supercharging water cylinder 8, a piston linkage mechanism is commonly connected between the two groups of supercharging water cylinders 8, both ends of the piston linkage mechanism are connected with the supercharging pistons 11 of the two groups of supercharging water cylinders 8 and drive the supercharging pistons 11 to slide along the axial direction, an adjustable reciprocating drive 13 is arranged on the bottom plate 7, the output end of the adjustable reciprocating drive 13 is connected with the piston linkage mechanism, the adjustable reciprocating drive 13 is electrically connected with the height detection linkage mechanism 6, the adjustable reciprocating drive 13 adjusts the size of the output force of the adjustable reciprocating drive 13 according to the height detected by the height detection linkage mechanism 6, and then adjusts the size of the force acting on the supercharging pistons 11 by the piston linkage mechanism, so that the water pressure of the water flow output from the supercharging water cylinders 8 to the spraying mechanism 2 changes, the higher the height of the spraying mechanism 2, the greater the output force of the adjustable reciprocating drive 13, the greater the force acting on the supercharging pistons 11 by the piston linkage mechanism, and the greater the water pressure, and the smaller the particle size of the mist droplets sprayed by the spraying mechanism 2.

[0044] Referring to Figure 1 and Figure 2, the height adjusting mechanism includes an electric push rod 5 and a spray support 43, the spray support 43 is rotationally arranged above the mounting support 4, the spray support 43 is arranged in a U shape, the spray mechanism 2 includes a dust falling cylinder 44, a fan 45, an annular water pipe 46, an atomizing nozzle 47 and a water supply pipe 48, the dust falling cylinder 44 is rotationally arranged in the spray support 43, both ends of the electric push rod 5 are rotationally connected with the bottom wall of the spray support 43 and the bottom wall of the dust falling cylinder 44 respectively, the fan 45 is arranged in the dust falling cylinder 44, the annular water pipe 46 is coaxially arranged in the inner wall of one end of the dust falling cylinder 44 away from the fan 45, the atomizing nozzle 47 is communicatively arranged in the side wall of the annular water pipe 46, the atomizing nozzles 47 are equidistantly arranged along the annular water pipe 46, the water supply pipe 48 is communicatively arranged between the annular water pipe 46 and the one-way drainage pipeline 10, the height detection linkage mechanism 6 is arranged on the outer bottom wall of the dust falling cylinder 44 close to the atomizing nozzle 47, a swing motor 49 is arranged below the mounting support 4, the output end of the swing motor 49 is connected with the spray support 43, the swing motor 49 drives the spray support 43 to reciprocatingly rotate, the spray support 43 drives the dust falling cylinder 44 to swing left and right, so as to adjust the spray angle, the electric push rod 5 drives the dust falling cylinder 44 to swing up and down, so as to adjust the pitch angle of the dust falling cylinder 44, thereby adjusting the spray height, through the cooperation of the swing motor 49 and the electric push rod 5, the multi-angle coverage dust falling of the spray mechanism 2 is realized.

[0045] Referring to Figures 1-5 , in some embodiments, the piston linkage mechanism and the adjustable reciprocating drive 13 outside are provided with a cover 53, which can effectively prevent dust.

[0046] Referring to Figure 1 , Figure 4 , Figure 5 and Figure 8 , the height detection linkage mechanism 6 includes a distance measuring sensor 14, the outer bottom wall of the spray mechanism 2 is provided with a self-adjusting support 54, an eccentric block 55 is rotationally arranged in the self-adjusting support 54, the eccentric block 55 is rotationally arranged between the self-adjusting supports 54, the distance measuring sensor 14 is arranged on the bottom wall of the eccentric block 55, under the action of gravity, the eccentric block 55 drives the distance measuring sensor 14 to always vertically downward when moving up and down on the spray mechanism 2, the distance measuring sensor 14 detects the height from the end of the spray mechanism 2 to the mounting support 4, the bottom plate 7 is provided with a controller 15, the controller 15 is electrically connected with the adjustable reciprocating drive 13 and the distance measuring sensor 14 respectively, the controller 15 adopts a 51 single-chip microcomputer, and the distance measuring sensor 14 adopts a VL53L0X laser distance measuring sensor.

[0047] As Figures 2-5As shown, the adjustable reciprocating drive 13 includes a transmission mechanism 16 and a lever force-adjusting reciprocating mechanism 17, and the middle part of the base plate 7 is symmetrically provided with a support frame 56, the transmission mechanism 16 is arranged on the support frame 56, and the transmission mechanism 16 is arranged between the lever force-adjusting reciprocating mechanism 17 and the piston linkage mechanism. The lever force-adjusting reciprocating mechanism 17 is electrically connected with the controller 15, and the transmission mechanism 16 transmits the reciprocating power generated by the lever force-adjusting reciprocating mechanism 17 to the piston linkage mechanism to drive the piston linkage mechanism to move reciprocally.

[0048] As shown in Figure 1 , Figure 7 and Figure 11 , the two groups of pressurized water cylinders 8 are symmetrically arranged and are respectively provided with sliding through holes 18 away from the one-way drainage pipeline 10, and the piston linkage mechanism includes a sliding rod 12 connected between the two groups of pressurized water cylinders 8, and the sliding rod 12 is connected between the pressurized pistons 11 of the two groups of pressurized water cylinders 8, and the sliding rod 12 slides through the sliding through holes 18.

[0049] As shown in Figures 1-3 , the one-way water pumping pipeline 9 includes a water pumping hose 50 and a water pumping one-way valve 51, and the pressurized water cylinder 8 is provided with a water pumping hole away from the sliding through hole 18, and the water pumping one-way valve 51 is arranged at the water pumping hole, and the water pumping hose 50 is connected between the water pumping one-way valve 51 and the water tank 1 in communication, and the one-way drainage pipeline 10 includes a drainage hose 52 and a drainage one-way valve 19, and the pressurized water cylinder 8 is provided with a drainage hole away from the sliding through hole 18, and the drainage one-way valve 19 is arranged at the drainage hole, and the drainage hose 52 is connected between the drainage one-way valve 19 and the water supply pipe 48 in communication.

[0050] As shown in Figures 3-11As shown, the output end of the transmission mechanism 16 is connected to the slide rod 12. The transmission mechanism 16 includes a drive rack 27, a stroke-amplifying transmission gear set 21, and a concentric drive gear 22. The slide rod 12 is disposed between the support frames 56. A sliding rack 23 is provided axially on the side wall of the slide rod 12. A side hole 24 adapted to the sliding rack 23 is provided on one side of the sliding through hole 18. A transmission shaft 25 is rotatably disposed on the upper end of the support frame 56. The concentric drive gear 22 is coaxially fixed on the transmission shaft 25. The concentric drive gear 22 is disposed between the support frames 56 and meshes with the sliding rack 23. The rotation of the drive gear 22 causes the sliding rack 23 to slide. The side wall of the support frame 56 is provided with a slide rail 29, and a slider 30 is slidably connected in the slide rail 29. The slider 30 is I-shaped. The drive rack 27 is located on the upper wall of the slider 30. The lever-type force-adjusting reciprocating mechanism 17 is located on the side wall of the support frame 56 and below the slider 30. The slider 30 is located at the output end of the lever-type force-adjusting reciprocating mechanism 17. The stroke-amplifying transmission gear set 21 is located on the side wall of the support frame 56. The drive rack 27 meshes with the stroke-amplifying transmission gear set 21, and the stroke-amplifying transmission gear set 21 is connected to the transmission shaft 25.

[0051] like Figures 4-10 As shown, the stroke-amplifying transmission gear set 21 includes a driven gear 39, a first transmission gear 40, and a second transmission gear 41. The support frame 56 has a concentric shaft 42 on its side wall. The first transmission gear 40 and the driven gear 39 are coaxially fixed on the concentric shaft 42, and the second transmission gear 41 is coaxially fixed on the transmission shaft 25. The driven gear 39 meshes with the driving rack 27, and the first transmission gear 40 meshes with the second transmission gear 41. The driving rack 27 reciprocates and slides, driving the driven gear 39 to reciprocate and rotate. The driven gear 39 drives the first transmission gear 40 to reciprocate and rotate through the concentric shaft 42. The first transmission gear 40 drives the second transmission gear 41 to reciprocate and rotate. The second transmission gear 41 drives the concentric drive gear 22 to reciprocate and rotate through the transmission shaft 25. The number of teeth of the driven gear 39 is less than the number of teeth of the concentric drive gear 22.

[0052] The lever force adjusting reciprocating mechanism 17 comprises a lever 31, a reciprocating electric push rod 32, a swing shaft 33, a force adjusting electric push rod 34 and an output card shaft 35. The swing shaft 33 is arranged on the side wall of the support frame 56, the lever 31 is rotatably arranged on the swing shaft 33, the bottom end of the sliding block 30 is provided with a connecting rod 20, the connecting rod 20 is provided with a strip-shaped sliding hole 26 along the length direction, the bottom end of the lever 31 is provided with a driving shaft 60, the force adjusting electric push rod 34 is arranged on the upper part of the side wall of the lever 31, the upper end of the force adjusting electric push rod 34 is provided with an adjusting block 28, the output card shaft 35 is arranged on the side of the adjusting block 28 close to the connecting rod 20, the output card shaft 35 is slidably arranged in the strip-shaped sliding hole 26, one end of the reciprocating electric push rod 32 is rotatably arranged on the side wall of the support frame 56, and the other end of the reciprocating electric push rod 32 is rotatably connected with the driving shaft 60.

[0053] Referring to Figure 4 , Figure 9 and Figure 12 , the reciprocating electric push rod 32 comprises a driving motor 57, a wire moving sliding cavity 36, a reciprocating screw rod 37 and an extension sliding pipe 58. The wire moving sliding cavity 36 is rotatably arranged on the side wall of the support frame 56, the reciprocating screw rod 37 is rotatably arranged in the wire moving sliding cavity 36, the wire moving sliding cavity 36 is provided with a threaded sliding seat 38 matched with the reciprocating screw rod 37, the reciprocating screw rod 37 is threadedly connected with the threaded sliding seat 38, the threaded sliding seat 38 is slidably connected with the wire moving sliding cavity 36, one side of the wire moving sliding cavity 36 close to the driving shaft 60 is provided with an extension through hole 59, one end of the extension sliding pipe 58 is fixedly connected to the side wall of the threaded sliding seat 38, the other end of the extension sliding pipe 58 penetrates through the extension through hole 59 and extends out of the wire moving sliding cavity 36, the extension sliding pipe 58 is coaxially arranged on the outer side of the reciprocating screw rod 37, the end of the extension sliding pipe 58 away from the threaded sliding seat 38 is rotatably connected with the driving shaft 60, and the driving motor 57 is arranged on the side wall of the wire moving sliding cavity 36. The output shaft of the driving motor 57 and the reciprocating screw rod 37 are coaxially connected with transmission gears, respectively, and the two transmission gears are engaged.

[0054] In specific use, the spray support 43 is driven to reciprocating rotation by the swing motor 49, the dust-settling cylinder 44 is swung left and right by the spray support 43, thereby adjusting the spray angle, the dust-settling cylinder 44 is swung up and down by the electric push rod 5, thereby adjusting the pitch angle of the dust-settling cylinder 44, and the spray height is adjusted, the swing motor 49 and the electric push rod 5 are cooperated to realize multi-angle coverage dust-settling of the spray mechanism 2, the lever-type force-adjusting reciprocating mechanism 17 is started, the driving motor 57 drives the reciprocating screw 37 to rotate through two meshing transmission gears, the reciprocating screw 37 drives the threaded sliding seat 38 to reciprocate along the linear sliding cavity 36, the threaded sliding seat 38 drives the telescopic sliding pipe 58 to reciprocate along the linear sliding cavity 36, the periodic reciprocating telescoping of the reciprocating electric push rod 32 drives the lever 31 to reciprocate around the swing shaft 33, the lever 31 reciprocates, the output shaft 35 is driven to reciprocate around the swing shaft 33 by the force-adjusting electric push rod 34, the output shaft 35 drives the sliding block 30 to reciprocate along the slide rail 29 through the strip-shaped sliding hole 26 and the connecting rod 20, the sliding block 30 drives the driving rack 27 to reciprocate, the driving rack 27 drives the driven gear 39 to reciprocate, the driven gear 39 drives the transmission gear one 40 to reciprocate through the concentric shaft 42, the transmission gear one 40 drives the transmission gear two 41 to reciprocate, the transmission gear two 41 drives the concentric driving gear 22 to reciprocate through the transmission rotating shaft 25, the concentric driving gear 22 drives the sliding rod 12 to reciprocate through the sliding rack 23, the sliding rod 12 drives the two sets of booster pistons 11 to reciprocate, when the booster pistons 11 slide outward along the booster water cylinder 8, the booster pistons 11 generate negative pressure in the booster water cylinder 8, and the water in the water tank 1 is pumped into the booster water cylinder 8 through the water pumping hose 50, when the booster pistons 11 move inward along the booster water cylinder 8, the booster pistons 11 send the water in the booster water cylinder 8 into the annular water pipe 46 through the water discharging hose 52 and the water supply pipe 48, and the water is atomized and sprayed through the atomizing nozzle 47, when one set of booster pistons 11 slides outward along the booster water cylinder 8, the sliding rod 12 drives the other set of booster pistons 11 to move inward along the booster water cylinder 8, so that one set of booster water cylinders 8 pumps water while the other set of booster water cylinders 8 discharges water, the two sets of booster water cylinders 8 realize continuous and stable water supply to the atomizing nozzle 47 through alternating water pumping and discharging, when the dust-settling cylinder 44 swings up and down, the height detection linkage mechanism 6 moves up and down, the eccentric block 55 drives the distance measuring sensor 14 to be always vertical downward when the height detection linkage mechanism 6 moves up and down, the distance measuring sensor 14 detects the height from the end of the spray mechanism 2 to the mounting support 4, the distance measuring sensor 14 detects the height from one end of the dust-settling cylinder 44 close to the atomizing nozzle 47 to the mounting support 4 in real time and sends the height to the controller 15, the controller 15 adjusts the length of the telescoping of the force-adjusting electric push rod 34 according to the change of the detected height, the higher the height of the spray mechanism 2, the shorter the length of the telescoping of the force-adjusting electric push rod 34, and the smaller the distance from the output shaft 35 to the swing shaft 33, the swing shaft 33 is the fulcrum of the lever 31, when the reciprocating electric push rod 32 periodically telescopes, the lever 31 is forced by the driving shaft 60,And through the output card shaft 35 to the slider 30, according to the principle of leverage, in the premise of the force point and the force size is not changed, the shorter the resistance arm, the greater the output force, so the output card shaft 35 to the fulcrum (swing shaft 33) distance is shorter, the greater the force output by the lever 31, by controlling the force adjustment electric push rod 34 extension to adjust the output card shaft 35 to the swing shaft 33 distance, can adjust the size of the force output by the lever 31 to the slider 30, that is, adjust the size of the output force of the lever type force adjustment reciprocating mechanism 17, and then adjust the size of the force acting on the supercharged piston 11, so that the water pressure of the water flow output by the supercharged water cylinder 8 to the spraying mechanism 2 changes, the higher the spraying mechanism 2, the shorter the length of the force adjustment electric push rod 34 extension, the smaller the distance between the output card shaft 35 and the swing shaft 33, the greater the output force of the lever type force adjustment reciprocating mechanism 17, the greater the force acting on the supercharged piston 11 by the piston linkage mechanism, the greater the water pressure, the smaller the particle size of the spray droplets sprayed by the spraying mechanism 2, through the cooperation of the distance measuring sensor 14 and the adjustable double cylinder supercharging mechanism 3, the particle size of the sprayed droplets is automatically adjusted with the spraying height, so as to effectively reduce the dust at different heights.

[0055] It should be noted that in this text, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device.

[0056] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application.

[0057] The above describes the present application and its embodiments, which is not restrictive, and the drawings shown are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which shall belong to the protection scope of the present application.

Claims

1. A dust suppression device for construction projects, comprising a water tank (1) and a spray mechanism (2), characterized in that: An adjustable double-cylinder booster mechanism (3) is provided between the water tank (1) and the spray mechanism (2). The adjustable double-cylinder booster mechanism (3) is located on the upper wall of the water tank (1). A mounting bracket (4) is provided above the water tank (1). A height adjustment mechanism is provided above the mounting bracket (4). The spray mechanism (2) is located on the height adjustment mechanism. A height detection linkage mechanism (6) for detecting the height of the spray mechanism (2) is provided on the spray mechanism (2). The adjustable double-cylinder booster mechanism (3) includes a base plate (7) and two sets of booster cylinders (8) located on the base plate (7). The base plate (7) is located on the water tank (1). Each set of booster cylinders (8) is connected to the water tank (1) respectively. A one-way pumping pipe (9) is provided, and a one-way drain pipe (10) is provided between each set of booster cylinders (8) and the spray mechanism (2). Each booster cylinder (8) is equipped with a sliding and sealed booster piston (11). The two sets of booster cylinders (8) are connected by a piston linkage mechanism. The two ends of the piston linkage mechanism are connected to the booster pistons (11) of the two sets of booster cylinders (8) and drive the booster pistons (11) to slide axially. An adjustable reciprocating drive (13) is provided on the base plate (7). The output end of the adjustable reciprocating drive (13) is connected to the piston linkage mechanism. The adjustable reciprocating drive (13) is electrically connected to the height detection linkage mechanism (6). The adjustable reciprocating drive (13) includes a transmission mechanism (16) and a lever-type force-adjusting reciprocating mechanism (17). A support frame (56) is symmetrically provided in the middle of the base plate (7). The transmission mechanism (16) is located on the support frame (56) and is located between the lever-type force-adjusting reciprocating mechanism (17) and the piston linkage mechanism. Two sets of booster cylinders (8) are provided with sliding through holes (18) on the side away from the one-way drainage pipe (10). The two sets of booster cylinders (8) are symmetrically arranged. The piston linkage mechanism includes a slide rod (12). The slide rod (12) is connected between the two sets of booster cylinders (8). The slide rod (12) is connected between the booster pistons (11) of the two sets of booster cylinders (8). The slide rod (12) slides through the sliding through hole (18). The output end of the transmission mechanism (16) is connected to the slide rod (12). The transmission mechanism (16) includes a drive rack (27), a stroke-amplifying transmission gear set (21), and a concentric drive gear (22). The slide rod (12) is located between the support frames (56). The slide rod (12) has a sliding rack (23) axially arranged on its side wall. The sliding through hole (18) has a side hole (24) that matches the sliding rack (23). The upper end of the support frame (56) is rotatably provided with a transmission shaft (25). The concentric drive gear (22) is coaxially fixed on the transmission shaft (25). The concentric drive gear (22) is located between the support frames (56). The concentric drive gear (22) and the drive shaft (25) are connected to the drive shaft (25). The sliding rack (23) is engaged, the side wall of the support frame (56) is provided with a slide rail (29), a slider (30) is slidably connected in the slide rail (29), the slider (30) is set in an I-shape, the active rack (27) is set on the upper wall of the slider (30), the lever-type force adjustment reciprocating mechanism (17) is set on the side wall of the support frame (56) and below the slider (30), the slider (30) is set at the output end of the lever-type force adjustment reciprocating mechanism (17), the stroke amplification transmission gear set (21) is set on the side wall of the support frame (56), the active rack (27) is engaged with the stroke amplification transmission gear set (21), and the stroke amplification transmission gear set (21) is connected to the transmission shaft (25); The lever-type force-adjusting reciprocating mechanism (17) includes a lever (31), a reciprocating electric push rod (32), a swing shaft (33), a force-adjusting electric push rod (34), and an output locking shaft (35). The swing shaft (33) is located on the side wall of the support frame (56). The lever (31) is rotatably mounted on the swing shaft (33). The bottom end of the slider (30) is provided with a connecting rod (20). The connecting rod (20) is provided with a strip-shaped sliding hole (26) along its length. The bottom end of the lever (31) is provided with a drive shaft (60). The adjustable electric push rod (34) is located on the upper part of the side wall of the lever (31). The upper end of the adjustable electric push rod (34) is provided with an adjusting block (28). The output locking shaft (35) is located on the side of the adjusting block (28) near the connecting rod (20). The output locking shaft (35) is slidably locked in the strip-shaped sliding hole (26). One end of the reciprocating electric push rod (32) is rotatably located on the side wall of the support frame (56). The other end of the reciprocating electric push rod (32) is rotatably connected to the drive shaft (60).

2. The dust suppression device for construction projects according to claim 1, characterized in that: The height detection linkage mechanism (6) includes a distance sensor (14). The bottom wall of the spray mechanism (2) is provided with a self-adjusting bracket (54). An eccentric block (55) is rotatably provided inside the self-adjusting bracket (54). The eccentric block (55) is rotatably provided between the self-adjusting brackets (54). The distance sensor (14) is provided on the bottom wall of the eccentric block (55). A controller (15) is provided on the base plate (7). The controller (15) is electrically connected to the adjustable reciprocating drive (13) and the distance sensor (14) respectively.

3. A dust suppression device for construction projects according to claim 2, characterized in that: The lever-type force-adjusting reciprocating mechanism (17) is electrically connected to the controller (15).

4. A dust suppression device for construction projects according to claim 3, characterized in that: The stroke-amplified transmission gear set (21) includes a driven gear (39), a first transmission gear (40), and a second transmission gear (41). The side wall of the support frame (56) is provided with a concentric shaft (42). The first transmission gear (40) and the driven gear (39) are coaxially fixed on the concentric shaft (42), and the second transmission gear (41) is coaxially fixed on the transmission shaft (25). The driven gear (39) meshes with the driving rack (27), and the first transmission gear (40) meshes with the second transmission gear (41). The number of teeth of the driven gear (39) is less than the number of teeth of the concentric drive gear (22).

5. A dust suppression device for construction projects according to claim 4, characterized in that: The height adjustment mechanism includes an electric push rod (5) and a spray bracket (43). The spray bracket (43) is rotatably mounted above the mounting bracket (4). The spray bracket (43) is U-shaped. The spray mechanism (2) includes a dust collection cylinder (44), a fan (45), an annular water pipe (46), an atomizing nozzle (47), and a water supply pipe (48). The dust collection cylinder (44) is rotatably mounted inside the spray bracket (43). The two ends of the electric push rod (5) are rotatably connected to the bottom wall of the spray bracket (43) and the bottom wall of the dust collection cylinder (44), respectively. The fan (45) is located inside the dust collection cylinder (44). The annular water pipe (46) is coaxially disposed on the inner wall of the dust settling cylinder (44) away from the fan (45). The atomizing nozzle (47) is connected to the side wall of the annular water pipe (46). The atomizing nozzle (47) is arranged at equal intervals along the annular water pipe (46). The water supply pipe (48) is connected between the annular water pipe (46) and the one-way drainage pipe (10). The height detection linkage mechanism (6) is disposed on the outer bottom wall of the dust settling cylinder (44) near the atomizing nozzle (47). The mounting bracket (4) is provided with a swing motor (49) below it. The output end of the swing motor (49) is connected to the spray bracket (43).

6. A dust suppression device for construction projects according to claim 5, characterized in that: The one-way pumping pipeline (9) includes a pumping hose (50) and a pumping check valve (51). The booster cylinder (8) has a pumping hole on the side away from the sliding through hole (18). The pumping check valve (51) is located at the pumping hole. The pumping hose (50) is connected between the pumping check valve (51) and the water tank (1). The one-way draining pipeline (10) includes a draining hose (52) and a draining check valve (19). The booster cylinder (8) has a draining hole on the side away from the sliding through hole (18). The draining check valve (19) is located at the draining hole. The draining hose (52) is connected between the draining check valve (19) and the water supply pipe (48).

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