An efficient dust reduction device for building construction

Abstract

The present application discloses an efficient dust reduction device for building construction, belonging to the technical field of dust reduction in building construction. It includes a branch pipe and a cross-hinged pipe head; the central part of the cross-hinged pipe head is movably arranged inside the branch pipe, and one end is hinged to the branch pipe; the branched end of the cross-hinged pipe head passes through the side wall of the branch pipe and is hinged with a spraying mechanism installed; the spraying mechanism includes a regulation component, and the regulation component includes a rotating shaft, a mounting head, a mounting disc, a rotor component, and a control component. The mounting head is fixedly installed at one end of the rotating shaft, and the mounting disc is sleeved on the rotating shaft; the rotor component is rotatably arranged on one side of the mounting head; the control component is located below the rotor component, and one end is fixedly connected to the top of the mounting disc; the efficient dust reduction device for building construction in the present application solves the problem that the dust reduction device cannot effectively control dust due to the limitation of the wind environment.

Description

Technical Field

[0001] This application relates to the technical field of dust reduction in construction, and specifically to an efficient dust reduction device for construction. Background Technique

[0002] With the continuous implementation of new environmental protection policies, the dust control at construction sites has become increasingly normalized. To adapt to and meet the requirements of dust control, spray water supply main pipes are arranged at positions such as the external scaffolding at the construction site, construction site enclosures (walls), construction roads, and earthwork stacking areas at the construction site, and branch pipes and spray heads are arranged at intervals. Through the early warning linkage of on-line dust detection equipment, the spray booster device is immediately started, water flow is injected into the spray pipeline, and through the branch pipes and spray heads, water is evenly sprayed within a certain range to moisten the surface soil and control the suspended dust particles, making the soil moist and non-dusty, and the suspended dust aggregates and gains weight when encountering water and then falls, achieving the effect of suppressing dust.

[0003] However, when the existing spray dust reduction device works, the sprayed water mist is very likely to be displaced by the influence of wind, unable to contact the suspended particles in the largest range, resulting in a decrease in the dust reduction effect and causing waste of resources.

[0004] Therefore, it is necessary to provide an efficient dust reduction device for construction to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technical part is only used to understand the background technology of the concept of this application, and therefore, it may include information that does not constitute the prior art. Summary of the Invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide an efficient dust reduction device for construction, which solves the problem that the dust reduction device cannot effectively control dust due to the limitation of the wind environment.

[0007] The technical solution adopted by this application to solve its technical problems is: an efficient dust reduction device for construction, including branch pipes and cross-hinged pipe heads; the central part of the cross-hinged pipe head is movably arranged inside the branch pipe, and one end is hinged to the branch pipe; the branched end of the cross-hinged pipe head passes through the side wall of the branch pipe and is hingedly installed with a spraying mechanism; thus, a plurality of spraying mechanisms are distributed around the branch pipe to spray water mist, expanding the spraying range of a spraying point and indirectly increasing the dust reduction effect;

[0008] The spraying mechanism includes a regulation component, and the regulation component includes a rotating shaft, a mounting head, a mounting disc, a rotor assembly, and a control assembly. The mounting head is fixedly installed at one end of the rotating shaft, and the mounting disc is sleeved on the rotating shaft. The rotor assembly is rotatably arranged on one side of the mounting head. The control assembly is located below the rotor assembly and has one end fixedly connected to the top of the mounting disc. A plurality of rotor assemblies are provided and arranged circumferentially around the mounting head. A plurality of control assemblies are provided and arranged circumferentially along the rotating shaft. The rotor assemblies and the control assemblies are in one-to-one correspondence, and a connecting plate is connected between them through a ball joint. Thus, when the spray dust suppression device encounters an interfering wind direction during operation, the control assembly regulates the contact area between the rotor assembly and the wind, thereby realizing the regulation of the rotation speed of the regulation component. The different lift forces caused by the different rotation speeds of the regulation components of each spraying mechanism cause the cross-hinged pipe head to have an angular inclination, resulting in a change in the spraying height between the spraying mechanisms. This makes the spraying ranges between multiple spraying mechanisms as close to the center line as possible, reduces the misalignment effect caused by the wind force, and reduces the probability of resource waste.

[0009] Further, the rotor assembly includes a swing seat and a propeller. One end of the swing seat is installed on the mounting head through a bearing, and the end of the swing seat away from the mounting head is fixedly connected to one end of the propeller. The propeller uses trapezoidal blades and has a blade shape of an asymmetric airfoil. The blade angles of the propeller root decrease sequentially from the root to the tip. Thus, it ensures that all parts of the blade are in the best aerodynamic state. In addition, to increase the strength of the propeller root, the cross-sectional area of the propeller root is designed to be the largest.

[0010] Further, the control assembly includes a pneumatically controlled telescopic rod. The pneumatically controlled telescopic rod is vertically arranged, and the fixed end is fixedly connected to the mounting disc. The movable end of the pneumatically controlled telescopic rod is fixedly connected to the connecting plate. The pneumatically controlled telescopic rod is a single-acting cylinder and uses a spring for automatic reset.

[0011] Further, an internal pipeline and a mounting cavity are provided inside the branch pipe. One end of the internal pipeline communicates with the end of the branch pipe. The mounting cavity is located at the end of the internal pipeline away from the end of the branch pipe and is connected to the internal pipeline in a communicating manner. A circular through groove is circumferentially provided on the side surface of the branch pipe. The circular through groove is located on one side of the mounting cavity and is connected to the mounting cavity in a communicating manner. The mounting cavity is pear-shaped.

[0012] The cross-hinged pipe head includes a ball head part and a connecting seat. One end of the ball head part is fixedly connected to the connecting seat. The ball head part and the connecting seat are both located in the installation cavity and are in clearance fit with the installation cavity. The end of the ball head part away from the connecting seat is in dynamic seal connection with the internal pipeline. The outer circumference of the connecting seat is provided with support arms, which correspond to the circular through grooves and the spraying mechanisms one by one and are in clearance fit. The inner wall of the ball head part is provided with a water guiding passage, the inside of the connecting seat is provided with a cross shunt, and the inside of the support arm is provided with a water delivery pipe. The water guiding passage, the cross shunt and the water delivery pipe are connected through and through, and one end of the water guiding passage is communicated with the internal pipeline. Thus, the cross-hinged pipe head realizes the balanced scheduling between the spraying mechanisms through the ball head part and the connecting seat while maintaining the water source delivery. The pear-shaped installation cavity provides enough swinging space for the ball head part and the connecting seat, and the circular through groove provides space for the movement of the support arms.

[0013] Further, the spraying mechanism further includes a transfer bin and a spraying assembly. The inner wall of the transfer bin is provided with a transfer cavity. An input port is provided on one side of the transfer bin, and the input port is communicated with the transfer cavity. A universal pipe head is installed in a dynamic seal manner at the input port, and the end of the universal pipe head away from the transfer bin is in dynamic seal connection with the corresponding water delivery pipe. The control assembly is rotatably installed on the top of the transfer bin, and the spraying assembly is rotatably installed on the bottom of the transfer bin.

[0014] The rotating shaft is installed on the top of the transfer bin through a bearing, and a turbine is arranged at the end of the rotating shaft away from the mounting head, and the turbine is located in the transfer cavity. Thus, the water in the branch pipe enters the ball head part from the internal pipeline, is shunted through the connecting seat and enters the support arm, and then enters the transfer bin, pushing the turbine to rotate, causing the rotor assembly of the control assembly to rotate, and then the water flow enters the spraying assembly and is sprayed out.

[0015] Further, a base platform is rotatably installed on the top of the transfer bin, and the rod body of the rotating shaft is installed in an interference fit with the inner wall of the base platform. A micro air pump is fixedly installed at the end of the base platform away from the top of the transfer bin. The output end of the micro air pump is connected to the pneumatic control telescopic rod through a pipeline.

[0016] Furthermore, an identification mechanism is provided at the top of the branch pipe. The identification mechanism includes a rotating bracket and an induction disk. The rotating bracket is vertically installed on the branch pipe through a bearing. A wind vane body and an induction body are installed on the rod body of the rotating bracket. The induction body is located below the wind vane body, and the direction of the induction body is the same as the head direction of the wind vane body. The induction disk is fixedly installed at the top of the branch pipe. The induction disk is circular ring-shaped. The rotating bracket and the induction disk are concentrically arranged. The diameter of the rotating bracket is smaller than the inner diameter of the induction disk. The induction body is provided with a protruding part, and the protruding part is slidably connected to the inner wall of the induction disk. The induction disk is evenly divided into four linkage areas, and a linkage bar is arranged between two adjacent linkage areas. The linkage bar corresponds to the support arm one by one, and the radial direction of the linkage bar and the radial direction of the corresponding support arm are on the same straight line.

[0017] Touch pads are provided on the inner walls of the linkage area and the linkage bar. The linkage area is connected to the adjacent linkage bar by a circuit. A signal transmitter is provided at the bottom of the linkage bar. The signal transmitter is electrically connected to the micro air pump at the corresponding support arm. Thus, when the wind vane body rotates under the action of wind force to point to the wind direction, the rotating bracket rotates to drive the induction body to rotate. The protruding part of the induction body is connected to the touch pad in the area closest to the wind source, and then the micro air pump at the corresponding support arm is started. The connected air control telescopic rod pulls the swing seat to rotate through the connecting plate, and then the propeller rotates by a certain angle, increasing the area of contact with the lateral wind, thereby increasing the air resistance generated, and increasing the rotational speed of the rotor assembly.

[0018] Furthermore, a placement cavity is provided at the top of the rotating bracket. The placement cavity is vertically downward and its axis is located on the axis of the rotating bracket. A rotating support rod is installed in the placement cavity through a bearing. One end of the rotating support rod is located outside the top of the rotating bracket, and a connecting rod is circumferentially installed at this end. A hemispherical shell is provided at the end of the connecting rod away from the rotating support rod. A detection component is fixedly installed at the end of the rotating support rod located in the placement cavity. An electronic control unit is installed in the rotating bracket. The electronic control unit is connected to the detection component and the induction body by circuits. Thus, when the wind blows, the wind force pushes the rotating support rod to rotate through the hemispherical shell. When the wind stops, the rotating support rod stops rotating. After the detection component detects that the rotating support rod no longer rotates, the micro air pump no longer receives the inflation signal, and the corresponding air control telescopic rod returns due to the internal spring. The movable end of the air control telescopic rod controls the connecting plate to push the swing seat to rotate, and then the propeller returns to its original position.

[0019] Further, the detection component includes a frustum of a cone, the top of which is fixedly connected to the rotating support rod; an elliptical cavity is formed on one side of the frustum of the cone, and one end of the elliptical cavity close to the center of the frustum of the cone is lower than the end far from the center of the frustum of the cone; a conductive ball is slidably installed inside the elliptical cavity; a first conductive sheet is arranged at one end of the elliptical cavity close to the center of the frustum of the cone, and a second conductive sheet is arranged on one side of the elliptical cavity close to the bottom. The first conductive sheet and the second conductive sheet are connected in series through the conductive ball, and the other ends of the first conductive sheet and the second conductive sheet are connected to the electric control unit by wires. Thus, when the rotating support rod rotates, it drives the frustum of the cone to rotate. Due to the centrifugal force, the conductive ball moves to the outer edge of the elliptical cavity, making the circuit where the first conductive sheet and the second conductive sheet are located disconnected. At this time, the circuit where the inductor and the electric control unit are located is in a conducting state. When the inductor moves to the corresponding area of the induction disc, it provides power for the corresponding signal transmitter. When the rotating support rod stops rotating and moves to one end of the elliptical cavity close to the center of the frustum of the cone, the circuit where the first conductive sheet and the second conductive sheet are located is conducted. At this time, the circuit where the inductor and the electric control unit are located is in a short - circuit state, and further makes the signal transmitter stop working.

[0020] Further, the detection component includes a rotational speed sensor, which is horizontally fixed at the bottom of the rotating support rod. An iron sheet is installed on the side wall of the placement cavity, and the iron sheet and the rotational speed sensor are in the same cross - section; a control unit is arranged at the top of the branch pipe. The rotational speed sensor and the signal transmitter are respectively connected to the control unit by wires. Thus, the rotational speed sensor adopts a Hall - type rotational speed sensor; when the current change of the rotational speed sensor no longer occurs, the control unit closes the enabling signal of the signal transmitter.

[0021] Further, the spraying component includes a sub - control valve, a straight - through pipe, and a spraying pipe; the sub - control valve is located in the transfer cavity and is fixedly connected to the transfer bin on the outside; one end of the straight - through pipe is fixedly connected to the output end of the transfer cavity, and a rotary joint is arranged at the central part of the spraying pipe. The input end of the rotary joint is rotatably connected to the straight - through pipe; the spraying pipe is a Z - shaped pipe, and nozzles are arranged at both ends of the spraying pipe. Thus, after the water flow enters the spraying pipe, due to the reaction force of the water pressure, the spraying pipe rotates, and thus the spraying area is circular.

[0022] A first through - hole and a second through - hole are formed on the side of the sub - control valve, and the first through - hole and the second through - hole are not on the same side; an inner passage, an operation cavity, and an outer passage are formed inside the sub - control valve, and the inner passage, the operation cavity, and the outer passage are concentrically arranged; the inner passage is located between the operation cavity and the outer passage; the inner passage is columnar, and one end of it is communicated with the outer passage, and the other end of the inner passage is communicated with the operation cavity. The outer passage is located at the bottom of the sub - control valve and is communicated with the straight - through pipe; one side of the first through - hole is communicated with the outer passage through a pipeline, and one end of the second through - hole is communicated with the inner passage. Thus, the water flow in the transfer cavity enters the inner passage and the outer passage respectively through the first through - hole and the second through - hole, which is convenient for the subsequent distribution of the water flow.

[0023] Furthermore, a valve is fixedly installed inside the outer passage, a valve plug is movably arranged inside the operation chamber, and one end of the valve plug slides through the inner passage and is inlaid with the valve; an electric control telescopic rod is fixedly installed at one end of the operation chamber far away from the first through hole, the movable part of the electric control telescopic rod is located inside the operation chamber and is fixedly connected with the valve plug; the input end of the electric control telescopic rod is electrically connected with the signal transmitter; thus, when the rotation speed of the regulation assembly increases, the electric control telescopic rod pulls the valve plug upward, so that the valve plug is separated from the valve, realizing the connection between the inner passage and the outer passage, and further increasing the water flow rate into the straight pipe, accelerating the water flow speed, and further making the horizontal distance of the spraying parabola of the spraying pipe longer.

[0024] The beneficial effects of the present application are as follows: An efficient dust reduction device for building construction provided by the present application, through the arrangement of a spraying mechanism and a regulation assembly, a plurality of spraying mechanisms are distributed around the branch pipe for spraying water mist, expanding the spraying range of a spraying point and indirectly increasing the dust reduction effect; in addition, when the spray dust reduction device works in the face of an interfering wind direction, the operation assembly regulates the contact area between the rotor assembly and the wind, and further realizes the regulation of the rotation speed of the regulation assembly; the different rotation speeds of the regulation assemblies of each spraying mechanism result in different lifting forces, and further cause the cross-hinged pipe head to have an angular inclination, so that the spraying heights between the spraying mechanisms change; making the spraying ranges between a plurality of spraying mechanisms as close to the center line as possible, reducing the misalignment influence caused by the wind force and reducing the probability of resource waste.

[0025] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The specification drawings forming a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0027] Figure 1 is an overall schematic diagram of an efficient dust reduction device for building construction in the present application;

[0028] Figure 2 is Figure 1 a three-dimensional schematic diagram of the internal structure of the branch pipe in

[0029] Figure 3 is Figure 1 a three-dimensional schematic diagram of the spraying mechanism in

[0030] Figure 4 is Figure 3 a three-dimensional schematic diagram of the regulation assembly in

[0031] Figure 5 Schematic three-dimensional view of the branch pipe and the cross-shaped articulated pipe head (the branch pipe is sectioned);

[0032] Figure 6 is Figure 5 Schematic sectional view of the cross-shaped articulated pipe head in

[0033] Figure 7 Schematic three-dimensional view of the rotating bracket, the wind vane body, and the sensing body;

[0034] Figure 8 Schematic diagram of the structural relationship between the rotating bracket and the rotating support rod;

[0035] Figure 9 Schematic diagram of the positional relationship between the sensing body and the sensing disc;

[0036] Figure 10 Schematic sectional view of the internal structure of the sub-control valve;

[0037] Figure 11 Schematic sectional view of the detection component in the first embodiment (the frustum is sectioned);

[0038] Among them, the reference numerals in the figure are as follows:

[0039] 1. Branch pipe; 11. Internal pipeline; 12. Installation cavity; 13. Circular through groove; 2. Cross-shaped articulated pipe head; 21. Ball head part; 211. Water guiding passage; 22. Connection seat; 221. Cross-shaped shunt; 23. Support arm; 231. Water delivery pipe; 24. Universal pipe head; 3. Spraying mechanism; 31. Transfer bin; 311. Transfer cavity; 312. Input port; 313. Base; 32. Regulation component; 321. Turbine; 322. Rotating shaft; 323. Installation head; 324. Swing seat; 325. Propeller; 326. Connecting plate; 327. Pneumatic control telescopic rod; 328. Installation disc; 33. Spraying component; 331. Sub-control valve; 3311. First through hole; 3312. Second through hole; 3313. Inner passage; 3314. Operation cavity; 3315. Outer passage; 3317. Valve; 3318. Valve plug; 3319. Electric control telescopic rod; 332. Straight pipe; 333. Spraying pipe; 4. Identification mechanism; 41. Rotating bracket; 411. Placing cavity; 42. Sensing disc; 421. Linkage area; 422. Linkage bar; 43. Wind vane body; 44. Rotating support rod; 441. Connecting rod; 442. Hemispherical shell; 45. Sensing body; 46. Detection component; 461. Frustum; 4611. Elliptical cavity; 4612. Conductive ball; 4613. First conductive sheet; 4614. Second conductive sheet. Specific implementation mode

[0040] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, 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 those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0042] The present application provides an efficient dust reduction device for building construction. The efficient dust reduction device for building construction replaces the branch pipeline installed on the main spray water supply pipeline in the existing dust reduction operation; in the actual dust reduction operation, multiple groups of the dust reduction devices are arranged at intervals;

[0043] In the present application, as Figures 1-10 shown, taking one of the dust reduction devices as an example, its structure and working principle will be introduced in detail as follows:

[0044] Referring to Figures 1-2 , the dust reduction device includes a branch pipe 1 and a cross hinge pipe head 2; the central part of the cross hinge pipe head 2 is movably arranged inside the branch pipe 1, and one end is hinged to the branch pipe 1; the branched end of the cross hinge pipe head 2 passes through the side wall of the branch pipe 1 and is hingedly installed with a spraying mechanism 3; thus, a plurality of spraying mechanisms 3 are distributed around the branch pipe 1 to spray water mist, expanding the spraying range of a spraying point and indirectly increasing the dust reduction effect;

[0045] Referring to Figures 3-4, the spraying mechanism 3 includes a regulating component 32. The regulating component 32 includes a rotating shaft 322, a mounting head 323, a mounting disc 328, a rotor assembly, and a control assembly. The mounting head 323 is fixedly installed at one end of the rotating shaft 322, and the mounting disc 328 is sleeved on the rotating shaft 322; the rotor assembly is rotatably arranged on one side of the mounting head 323; the control assembly is located below the rotor assembly and has one end fixedly connected to the top of the mounting disc 328; there are multiple rotor assemblies arranged circumferentially around the mounting head 323; there are multiple control assemblies arranged circumferentially along the rotating shaft 322; the rotor assemblies and the operating assemblies are in one-to-one correspondence, and a connecting plate 326 is connected between them through a spherical hinge; thus, when the spray dust suppression device works and encounters an interfering wind direction, the operating assembly regulates the contact area between the rotor assembly and the wind, thereby realizing the change in the rotation speed of the regulating component 32; the different lift forces caused by the different rotation speeds of the regulating component 32 of each spraying mechanism 3 cause the cross-hinged pipe head 2 to have an angular inclination, so that the spraying height between the spraying mechanisms 3 changes; the spraying ranges between the multiple spraying mechanisms 3 are made as close to the center line as possible, reducing the misalignment effect caused by the wind force and reducing the probability of resource waste;

[0046] Among them, the rotor assembly includes a swing seat 324 and a propeller 325; one end of the swing seat 324 is installed on the mounting head 323 through a bearing, and the end of the swing seat 324 away from the mounting head 323 is fixedly connected to one end of the propeller 325; the propeller 325 adopts a trapezoidal blade and has a blade shape of an asymmetric airfoil; the blade angles of the propeller 325 from the root to the tip decrease in sequence; thus, it is ensured that all parts of the blade are in the best aerodynamic state; in addition, in order to increase the strength of the blade root, the cross-sectional area of the blade root is designed to be the largest;

[0047] The control assembly includes a pneumatic control telescopic rod 327. The pneumatic control telescopic rod 327 is arranged vertically, and the fixed end is fixedly connected to the mounting disc 328. The movable end of the pneumatic control telescopic rod 327 is fixedly connected to the connecting plate 326; the pneumatic control telescopic rod 327 is a single-acting cylinder and adopts spring automatic reset.

[0048] Refer to Figure 5 、 Figure 6 , the inside of the branch pipe 1 is provided with an internal pipeline 11 and a mounting cavity 12. One end of the internal pipeline 11 is connected to the branch pipe 1 port. The mounting cavity 12 is located at the end of the internal pipeline 11 away from the branch pipe 1 port and is connected to the internal pipeline 11 in a through manner; a circular through groove 13 is circumferentially opened on the side surface of the branch pipe 1. The circular through groove 13 is located on one side of the mounting cavity 12 and is connected to the mounting cavity 12 in a through manner; the mounting cavity 12 is pear-shaped;

[0049] The cross-hinged pipe head 2 includes a ball head member 21 and a connecting seat 22. One end of the ball head member 21 is fixedly connected to the connecting seat 22. Both the ball head member 21 and the connecting seat 22 are located within the installation cavity 12 and are in clearance fit with the installation cavity 12. The end of the ball head member 21 away from the connecting seat 22 is in dynamic seal connection with the internal pipeline 11. A support arm 23 is circumferentially arranged on the outer side of the connecting seat 22. The support arm 23 corresponds to the circular through groove 13 and the spraying mechanism 3 one by one and is in clearance fit. A water guiding passage 211 is arranged on the inner wall of the ball head member 21. A cross shunt 221 is arranged inside the connecting seat 22. A water delivery pipe 231 is arranged inside the support arm 23. The water guiding passage 211, the cross shunt 221, and the water delivery pipe 231 are connected through. One end of the water guiding passage 211 is communicated with the internal pipeline 11. Thus, the cross-hinged pipe head 2 realizes the balanced scheduling between the spraying mechanisms 3 while maintaining the water source delivery through the ball head member 21 and the connecting seat 22. The pear-shaped installation cavity 12 provides enough swinging space for the ball head member 21 and the connecting seat 22, and the circular through groove 13 provides space for the movement of the support arm 23.

[0050] Refer to Figure 3 , the spraying mechanism 3 further includes a transfer bin 31 and a spraying assembly 33. A transfer cavity 311 is formed on the inner wall of the transfer bin 31. The turbine 321 is located within the transfer cavity 311. An input port 312 is formed on one side of the transfer bin 31. The input port 312 is communicated with the transfer cavity 311. A universal pipe head 24 is dynamically sealed and installed at the input port 312. The end of the universal pipe head 24 away from the transfer bin 31 is in dynamic seal connection with the corresponding water delivery pipe 231. The regulation and control assembly 32 is rotatably installed on the top of the transfer bin 31, and the spraying assembly 33 is rotatably installed on the bottom of the transfer bin 31.

[0051] The rotating shaft 322 is installed on the top of the transfer bin 31 through a bearing. The end of the rotating shaft 322 away from the mounting head 323 is provided with a turbine 321. The turbine 321 is located within the transfer cavity 311. Thus, the water in the branch pipe enters the ball head member 21 from the internal pipeline 11, is shunted through the connecting seat 22 and enters the support arm 23, and then enters the transfer bin 31, pushing the turbine 321 to rotate, causing the rotor assembly of the regulation and control assembly 32 to rotate. Subsequently, the water flow enters the spraying assembly 33 and is sprayed out.

[0052] A base 313 is rotatably installed on the top of the transfer bin 31. The rod body of the rotating shaft 322 is installed in the inner wall of the base 313 with an interference fit. A micro air pump is fixedly installed at the top of the base 313 away from the transfer bin 31. The output end of the micro air pump is connected to the pneumatic telescopic rod 327 through a pipeline.

[0053] Refer to Figure 2 、 Figures 7-9, a recognition mechanism 4 is provided at the top of the branch pipe 1. The recognition mechanism 4 includes a rotating bracket 41 and an induction disc 42. The rotating bracket 41 is vertically installed on the branch pipe 1 through a bearing. A wind vane body 43 and an induction body 45 (such as Figure 7 ), the induction body 45 is located below the wind vane body 43, and the direction of the induction body 45 is the same as the head of the wind vane body 43. The induction disc 42 is fixedly installed at the top of the branch pipe 1. The induction disc 42 is in a ring shape (such as Figure 9 ). The rotating bracket 41 and the induction disc 42 are concentrically arranged. The diameter of the rotating bracket 41 is smaller than the inner diameter of the induction disc 42. The induction body 45 is provided with a protrusion, and the protrusion is slidably connected to the inner wall of the induction disc 42. The induction disc 42 is evenly divided into four linkage areas 421, and a linkage bar 422 is arranged between two adjacent linkage areas 421. The linkage bars 422 correspond to the support arms 23 one by one. The radial direction of the linkage bar 422 and the radial direction of the corresponding support arm 23 are on the same straight line;

[0054] Among them: touch pads are provided on the inner walls of the linkage area 421 and the linkage bar 422. The linkage area 421 is connected to the adjacent linkage bar 422 by a circuit. A signal transmitter is provided at the bottom of the linkage bar 422, and the signal transmitter is electrically connected to the micro air pump at the corresponding support arm 23. Thus, when the wind vane body 43 rotates under the action of wind to point to the wind direction, the rotating bracket 41 rotates to drive the induction body 45 to rotate. The protrusion of the induction body 45 is connected to the touch pad in the area closest to the wind source, and then the micro air pump at the corresponding support arm 23 is started, so that the connected air control telescopic rod 327 pulls the swing seat 324 to rotate through the connecting plate 326, and then the propeller 325 rotates by a certain angle, increasing the area in contact with the cross wind, so that the generated air resistance increases, and the rotation speed of the rotor assembly increases;

[0055] A placement cavity 411 is opened at the top of the rotating bracket 41. The placement cavity 411 is vertically downward and its axis is located on the axis of the rotating bracket 41. A rotating support rod 44 is installed in the placement cavity 411 through a bearing. One end of the rotating support rod 44 is located outside the top of the rotating bracket 41, and a connecting rod 441 is circumferentially installed at this end. A hemispherical shell 442 is provided at the end of the connecting rod 441 away from the rotating support rod 44. A detection component 46 is fixedly installed at the end of the rotating support rod 44 located in the placement cavity 411. An electronic control unit is installed in the rotating bracket 41, and the electronic control unit is electrically connected to the detection component 46 and the induction body 45. Thus, when the wind blows, the wind pushes the rotating support rod 44 to rotate through the hemispherical shell 442. When the wind stops, the rotating support rod 44 stops rotating. After the detection component 46 detects that the rotating support rod 44 no longer rotates, the micro air pump no longer receives the inflation signal, and the corresponding air control telescopic rod 327 returns due to the internal spring. The movable end of the air control telescopic rod 327 controls the connecting plate 326 to push the swing seat 324 to rotate, and then the propeller 325 returns to its original position.

[0056] Reference Figure 10 Figure 10 , the spraying assembly 33 includes a sub-control valve 331, a straight-through pipe 332, and a spraying pipe 333; the sub-control valve 331 is located in the transfer chamber 311 and is fixedly connected to the transfer bin 31 on the outside; one end of the straight-through pipe 332 is fixedly connected to the output end of the transfer chamber 311, and a rotary joint is provided at the central part of the spraying pipe 333, and the input end of the rotary joint is rotatably connected to the straight-through pipe 332; the spraying pipe 333 is a Z-shaped pipe, and nozzles are provided at both ends of the spraying pipe 333; thus, after the water flow enters the spraying pipe 333, the spraying pipe 333 rotates due to the reaction force of the water pressure, and the spraying area is circular;

[0057] A through hole one 3311 and a through hole two 3312 are provided on the side of the sub-control valve 331, and the through hole one 3311 and the through hole two 3312 are not on the same side; an inner passage 3313, an operation chamber 3314, and an outer passage 3315 are provided inside the sub-control valve 331, and the inner passage 3313, the operation chamber 3314, and the outer passage 3315 are concentrically arranged; the inner passage 3313 is located between the operation chamber 3314 and the outer passage 3315; the inner passage 3313 is columnar, and one end is communicated with the outer passage 3315, and the other end of the inner passage 3313 is communicated with the operation chamber 3314, and the outer passage 3315 is communicated with the straight-through pipe 332 at the bottom of the sub-control valve 331; one side of the through hole one 3311 is communicated with the outer passage 3315 through a pipeline, and one end of the through hole two 3312 is communicated with the inner passage 3313;

[0058] A valve 3317 is fixedly installed inside the outer passage 3315, a valve plug 3318 is movably arranged inside the operation chamber 3314, and one end of the valve plug 3318 slides through the inner passage 3313 and is inlaid with the valve 3317; an electric control telescopic rod 3319 is fixedly installed at one end of the operation chamber 3314 away from the through hole one 3311, the movable part of the electric control telescopic rod 3319 is located inside the operation chamber 3314 and is fixedly connected to the valve plug 3318; the input end of the electric control telescopic rod 3319 is electrically connected to the signal transmitter; thus, when the rotation speed of the control component 32 increases, the electric control telescopic rod 3319 pulls the valve plug 3318 to move upward, so that the valve plug 3318 is separated from the valve 3317, realizing the communication between the inner passage 3313 and the outer passage 3315, and further increasing the water flow rate into the straight-through pipe 332, accelerating the water flow speed, and further making the horizontal distance of the spraying parabola of the spraying pipe 333 longer.

[0059] Embodiment 1: The specific structure of the detection component 46 in the above solution is as follows:

[0060] Reference Figure 11, the detection component 46 includes a frustum 461, and the top of the frustum 461 is fixedly connected to the rotating support rod 44; an elliptical cavity 4611 is formed on one side of the frustum 461, and one end of the elliptical cavity 4611 close to the center of the frustum 461 is lower than the end far from the center of the frustum 461; a conductive ball 4612 is slidably installed inside the elliptical cavity 4611; a first conductive sheet 4613 is arranged at one end of the elliptical cavity 4611 close to the center of the frustum 461, and a second conductive sheet 4614 is arranged on one side of the elliptical cavity 4611 close to the bottom. The first conductive sheet 4613 and the second conductive sheet 4614 are connected in series through the conductive ball 4612, and the other ends of the first conductive sheet 4613 and the second conductive sheet 4614 are connected to the electric control unit circuit. Thus, when the rotating support rod 44 rotates, it drives the frustum 461 to rotate. Due to the centrifugal force, it moves to the outer edge of the elliptical cavity 4611, causing the circuit where the first conductive sheet 4613 and the second conductive sheet 4614 are located to be disconnected. At this time, the circuit where the inductor 45 and the electric control unit are located is in a conductive state. When the inductor 45 moves to the corresponding area of the induction disc 42, it provides power for the corresponding signal transmitter. When the rotating support rod 44 stops rotating and moves to one end of the elliptical cavity 4611 close to the center of the frustum 461, the circuit where the first conductive sheet 4613 and the second conductive sheet 4614 are located is conducted. At this time, the circuit where the inductor 45 and the electric control unit are located is in a short-circuit state, and then the signal transmitter stops working.

[0061] In summary, during the dust suppression operation: water flows from the branch pipe 1 through the cross-hinged pipe head 2 to the spraying mechanisms 3 in four directions; thus replacing the existing single spray head for dust suppression, expanding the spraying range of a single spraying point, and indirectly improving the dust suppression effect.

[0062] When the wind blows during spraying: the wind vane body 43 drives the rotating bracket 41 to rotate, and the hemispherical shell 442 drives the rotating support rod to rotate; the wind vane body 43 detects the wind direction, and the corresponding inductor points to the linkage area 421 close to the wind head. Then, the signal transmitter at the corresponding linkage bar 422 issues an instruction, causing the regulating component 32 at the wind head to adjust the angle of the propeller 325, increasing the area in contact with the horizontal wind, and thus increasing the air resistance generated, causing the rotation speed of the rotor assembly to increase. Thus, the lift at the spraying mechanism 3 at the wind head is greater than that at the spraying mechanism 3 at the wind tail. Then, the height of the spraying mechanism 3 at the wind head is greater than that of the spraying mechanism 3 at the wind tail, making the spraying ranges of the multiple spraying mechanisms 3 as close to the center line as possible, reducing the displacement influence caused by the wind, and reducing the probability of resource waste.

[0063] Embodiment 2: A replacement scheme for the structure of the detection component 46 in Embodiment 1:

[0064] The detection component 46 includes a rotational speed sensor, which is horizontally fixed at the bottom of the rotating support rod 44. An iron sheet is installed on the side wall of the placement cavity 411, and the iron sheet and the rotational speed sensor are located on the same cross-section. A control unit is provided at the top of the branch pipe 1, and the rotational speed sensor and the signal transmitter are respectively connected to the control unit by wires. Thus, the rotational speed sensor is a Hall-type rotational speed sensor. When the current of the rotational speed sensor no longer changes, the control unit turns off the permission signal of the signal transmitter.

[0065] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An efficient dust reduction device for building construction, characterized in that: It includes a branch pipe (1) and a cross-hinged pipe head (2); the central part of the cross-hinged pipe head (2) is movably arranged inside the branch pipe (1), and one end is hinged to the branch pipe (1); the branched end of the cross-hinged pipe head (2) penetrates through the side wall of the branch pipe (1) and is hinged with a spraying mechanism (3) installed. The spraying mechanism (3) includes a regulation component (32), and the regulation component (32) includes a rotating shaft (322), a mounting head (323), a mounting disc (328), a rotor assembly, and a control assembly. The mounting head (323) is fixedly installed at one end of the rotating shaft (322), and the mounting disc (328) is sleeved on the rotating shaft (322); the rotor assembly is rotatably arranged on one side of the mounting head (323); the control assembly is located below the rotor assembly, and one end is fixedly connected to the top of the mounting disc (328); there are multiple rotor assemblies, which are arranged circumferentially along the mounting head (323); there are multiple control assemblies, which are arranged circumferentially along the rotating shaft (322); the rotor assemblies and the operation assemblies are in one-to-one correspondence, and a connecting plate (326) is connected between them through a spherical hinge. The rotor assembly includes a swing seat (324) and a propeller (325); one end of the swing seat (324) is installed on the mounting head (323) through a bearing, and the end of the swing seat (324) away from the mounting head (323) is fixedly connected to one end of the propeller (325); the propeller (325) adopts a trapezoidal blade, and the blade shape is an asymmetric airfoil; the blade angle of the propeller root of the propeller (325) decreases sequentially from the root to the tip. The control assembly includes a pneumatic control telescopic rod (327), the pneumatic control telescopic rod (327) is vertically arranged, and the fixed end is fixedly connected to the mounting disc (328), and the movable end of the pneumatic control telescopic rod (327) is fixedly connected to the connecting plate (326); the pneumatic control telescopic rod (327) is a single-acting cylinder and adopts spring automatic reset. The spraying mechanism (3) further includes a transfer bin (31) and a spraying assembly (33); a transfer cavity (311) is opened on the inner wall of the transfer bin (31); an input port (312) is opened on one side of the transfer bin (31), and the input port (312) communicates with the transfer cavity (311); a universal pipe head (24) is installed in a dynamic seal at the input port (312), and the end of the universal pipe head (24) away from the transfer bin (31) is dynamically sealed and connected to the corresponding water delivery pipe (231); the regulation component (32) is rotatably installed on the top of the transfer bin (31), and the spraying assembly (33) is rotatably installed on the bottom of the transfer bin (31); the rotating shaft (322) is installed on the top of the transfer bin (31) through a bearing, and a turbine (321) is arranged at the end of the rotating shaft (322) away from the mounting head (323), and the turbine (321) is located in the transfer cavity (311). A base (313) is rotatably installed at the top of the transfer warehouse (31), and the rod body of the rotating shaft (322) is installed in an interference fit with the inner wall of the base (313); a micro air pump is fixedly installed at the top of the base (313) away from the transfer warehouse (31); the output end of the micro air pump is connected to the pneumatic telescopic rod (327) through a pipeline.

2. The high-efficiency dust reduction device for building construction according to claim 1, wherein: An internal pipeline (11) and an installation cavity (12) are formed inside the branch pipe (1). One end of the internal pipeline (11) communicates with the end of the branch pipe (1). The installation cavity (12) is located at one end of the internal pipeline (11) away from the end of the branch pipe (1) and is connected to the internal pipeline (11) in a communicating manner; a circular through groove (13) is circumferentially formed on the side surface of the branch pipe (1). The circular through groove (13) is located on one side of the installation cavity (12) and is connected to the installation cavity (12) in a communicating manner; the installation cavity (12) is pear-shaped. The cross-shaped hinge pipe head (2) includes a ball head part (21) and a connecting seat (22). One end of the ball head part (21) is fixedly connected to the connecting seat (22). The ball head part (21) and the connecting seat (22) are both located in the installation cavity (12) and are in clearance fit with the installation cavity (12); one end of the ball head part (21) away from the connecting seat (22) is connected to the internal pipeline (11) in a dynamic seal manner; a support arm (23) is circumferentially arranged on the outer side of the connecting seat (22). The support arm (23) corresponds to the circular through groove (13) and the spraying mechanism (3) one by one and is in clearance fit; a water guiding passage (211) is arranged on the inner wall of the ball head part (21), a cross-shaped shunt (221) is arranged inside the connecting seat (22), and a water delivery pipe (231) is arranged inside the support arm (23). The water guiding passage (211), the cross-shaped shunt (221), and the water delivery pipe (231) are connected in a communicating manner, and one end of the water guiding passage (211) is communicated with the internal pipeline (11).

3. The highly efficient dust reduction device for building construction according to claim 1, characterized in that: At the top of the branch pipe (1), an identification mechanism (4) is provided. The identification mechanism (4) includes a rotating bracket (41) and an induction disc (42). The rotating bracket (41) is vertically installed on the branch pipe (1) through a bearing. On the rod body of the rotating bracket (41), a wind vane body (43) and an induction body (45) are installed. The induction body (45) is located below the wind vane body (43), and the direction of the induction body (45) is the same as the head direction of the wind vane body (43). The induction disc (42) is fixedly installed at the top of the branch pipe (1). The induction disc (42) is circular ring-shaped. The rotating bracket (41) and the induction disc (42) are concentrically arranged. The diameter of the rotating bracket (41) is smaller than the inner diameter of the induction disc (42). The induction body (45) is provided with a protruding part, and the protruding part is slidably connected to the inner wall of the induction disc (42). The induction disc (42) is evenly divided into four linkage areas (421), and a linkage bar (422) is arranged between two adjacent linkage areas (421). The linkage bars (422) correspond to the support arms (23) one by one, and the radial direction of the linkage bar (422) and the radial direction of the corresponding support arm (23) are on the same straight line.

4. An efficient dust reduction device for building construction according to claim 3, characterized in that: At the top of the rotating bracket (41), a placement cavity (411) is opened. The placement cavity (411) is vertically downward and its axis is located on the axis of the rotating bracket (41). In the placement cavity (411), a rotating support rod (44) is installed through a bearing. One end of the rotating support rod (44) is located outside the top of the rotating bracket (41), and a connecting rod (441) is circumferentially installed at this end. At the end of the connecting rod (441) far from the rotating support rod (44), a hemispherical shell (442) is provided. At the end of the rotating support rod (44) located in the placement cavity (411), a detection component (46) is fixedly installed. An electronic control unit is installed in the rotating bracket (41), and the electronic control unit is electrically connected to the detection component (46) and the induction body (45) through wires.

5. The highly efficient dust reduction device for building construction according to claim 4, characterized in that: The detection component (46) includes a frustum (461). The top of the frustum (461) is fixedly connected to the rotating support rod (44). On one side of the frustum (461), an elliptical cavity (4611) is opened. One end of the elliptical cavity (4611) close to the center of the frustum (461) is lower than the end far from the center of the frustum (461). Inside the elliptical cavity (4611), a conductive ball (4612) is slidably installed. At one end of the elliptical cavity (4611) close to the center of the frustum (461), a first conductive sheet (4613) is provided. On one side of the elliptical cavity (4611) close to the bottom, a second conductive sheet (4614) is provided. The first conductive sheet (4613) and the second conductive sheet (4614) are connected in series through the conductive ball (4612). The other ends of the first conductive sheet (4613) and the second conductive sheet (4614) are electrically connected to the electronic control unit through wires.

6. The high-efficiency dust reduction device for building construction according to claim 4, characterized in that: The detection component (46) includes a rotational speed sensor which is horizontally fixed at the bottom of the rotating support rod (44). An iron sheet is installed on the side wall of the placement cavity (411), and the iron sheet and the rotational speed sensor are located on the same cross-section. A control unit is provided at the top of the branch pipe (1), and the rotational speed sensor and the signal transmitter are respectively connected to the control unit by wires.

7. An efficient dust reduction device for building construction according to claim 4, characterized in that: The spraying component (33) includes a sub-control valve (331), a straight pipe (332), and a spraying pipe (333). The sub-control valve (331) is located in the transfer cavity (311) and is fixedly connected to the transfer bin (31) on the outside. One end of the straight pipe (332) is fixedly connected to the output end of the transfer cavity (311). A rotary joint is provided at the central part of the spraying pipe (333), and the input end of the rotary joint is rotatably connected to the straight pipe (332). The spraying pipe (333) is a Z-shaped pipe, and nozzles are provided at both ends of the spraying pipe (333).

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