Multistage dust falling device and method for workshop

Abstract

The invention discloses a multistage dust falling device and method for a workshop, and relates to the technical field of dust falling devices.The multistage dust falling device comprises the workshop, a plurality of first connecting strips are fixedly connected to the inner side of the workshop, a plurality of water pipes communicated with one another are installed in the workshop, and the water pipes are distributed on the inner side of the workshop; the plurality of first connecting strips are fixedly connected with the water pipe; through cooperation of parts such as the driving rod, air is enlarged from an internal circulation channel of the first through hole, so that the aperture size of the first through hole formed in the second circular plate can be flexibly adjusted according to the change of dust concentration, the suction force of the fan can be more effectively utilized by accurately controlling the aperture size of the air inlet, and the dust removal efficiency is improved. And the optimal dust falling effect can be achieved under different dust concentrations, so that the cleaning efficiency of the device is improved, the service life of the system is prolonged, the air volume and the suction force can be optimized, and the dust removal efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dust suppression devices, and in particular to a multi-stage dust suppression device and method for workshops. Background Art

[0002] The multi-stage dust reduction device for workshops is a highly efficient air purification equipment, which is mainly used to reduce the dust concentration in the workshop air. The device is widely used in various industrial workshops, such as metal processing workshops, machinery manufacturing workshops, chemical workshops, etc. These workshops usually produce a large amount of dust and harmful gases, which have a serious impact on the health of workers and the production environment. The application of multi-stage dust reduction devices can effectively improve the workshop environment, protect the health of workers and improve production efficiency.

[0003] In the prior art, a Chinese invention patent with a publication number of CN220176403U discloses a dust suppression water cannon, the technical solution of which includes a device box and a dust suppression water cannon, the device box is rotatably connected to a rotating rod, the top of the rotating rod extends to the top of the device box and is fixedly connected to a displacement plate, a driving motor is fixedly installed on the top of the device box and on one side of the displacement plate, a linkage mechanism is provided on one side of the rotating rod, the linkage mechanism is used to drive the displacement plate to swing, two vertical plates are fixedly connected to the top ends of the displacement plate, and the dust suppression water cannon is rotatably connected between the two vertical plates. The utility model solves the problem that when using a dust suppression water cannon for dust suppression, the dust suppression water cannon can only adjust the angle up and down, so that water can only be sprayed in one direction, and the production workshop is generally large, so this device cannot effectively perform dust suppression in the workshop in an all-round way, and when dust suppression is required in other places, it is necessary to manually move the position, thereby reducing the practicality of the device and increasing its limitations.

[0004] Although the above patent achieves comprehensive dust removal in the workshop, the above patent still has the following problems:

[0005] When the device is used to remove dust from a workshop, the dust is first wetted by a dust-reducing water cannon, and then a fan is used to suck the dust into a filter box. Since the dust suction force of the device cannot be adaptively adjusted according to the dust concentration, when the dust concentration is too high, the device absorbs more dust in a short time due to excessive suction, which can easily clog the pipeline of the device. At the same time, when the dust concentration is too low, the device cannot suck fine dust into the device due to insufficient suction, resulting in low dust suction efficiency. For this reason, we provide a multi-stage dust reduction device and method for workshops to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a multi-stage dust reduction device and method for a workshop in order to solve the problem that the dust suction force cannot be adaptively adjusted according to the dust concentration, which leads to excessive dust concentration and easy clogging of the pipeline, and the dust cannot be cleaned up when the dust concentration is too low.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a multi-stage dust reduction device for a workshop, comprising: a workshop, a plurality of first connecting strips are fixedly connected to the inner side of the workshop, a plurality of water pipes interconnected with each other are installed inside the workshop, and the plurality of water pipes are arranged and distributed on the inner side of the workshop, and the plurality of first connecting strips are fixedly connected to the water pipes; a second connecting strip, a plurality of the second connecting strips are provided, a plurality of the second connecting strips are fixedly connected to the inner side of the workshop, and a cylinder is fixedly connected to the bottom of each of the second connecting strips; a first protective shell, the first protective shell is fixedly connected to one side of the cylinder, and a second protective shell is fixedly connected to the other side of the cylinder; a first intake pipe, the first intake pipe is installed at the intake port of the first protective shell; a fan, the fan is installed on the inner side of the cylinder; an air pressure A switching structure, the air pressure switching mechanism is arranged on the inner side of the cylinder, and is used for filtering impurities at the air intake port of the first protective shell, the air pressure switching mechanism includes a support seat fixedly connected to the top of the cylinder, a driving motor is installed on the top of the support seat, the output end of the driving motor passes through the bottom of the support seat and is fixedly connected to a driving rod, one end of the driving rod passes through the inner side of the cylinder and is fixedly connected to a first circular plate, and the inner side of the cylinder is located at the bottom of the first circular plate and is fixedly connected to a second circular plate; a channel switching mechanism, the channel switching mechanism is arranged on the inner side of the first protective shell and the second protective shell, and is used for switching the air inlet channel of the cylinder; a cleaning mechanism, the cleaning mechanism is arranged on the inner side of the cylinder, and is used for cleaning impurities at the first circular plate and the second circular plate.

[0008] As a further solution of the present invention: the air pressure switching structure also includes a first through hole opened on the inner side of the second circular plate, a third through hole matching the size of the first through hole is opened on the inner side of the first circular plate, and a second through hole is also opened on the inner side of the first circular plate, the second through hole and the third through hole are staggered, and the diameter of the second through hole is smaller than the diameter of the third through hole.

[0009] As a further scheme of the present invention: the channel switching mechanism includes two groups of rotating seats fixedly connected to the outer walls on both sides of the cylinder, each group of rotating seats is provided with two, the inner side of each rotating seat is rotatably connected with a rotating rod, one end of the rotating rod passes through the inner side of the rotating seat and is fixedly connected with a first rotating plate, a torsion spring is installed between the rotating rod and the rotating seat, the outer walls on both sides of the cylinder are provided with two groups of first circular holes penetrating into the inner side of the cylinder, each group of the first circular holes is provided with two, and each of the first circular holes is correspondingly arranged on one side of the rotating seat, the inner side of the cylinder is fixedly connected with a bottom plate, the outer wall of the cylinder is provided with a second circular hole penetrating into the inner side of the cylinder, and the second circular hole is communicated with the interior of the second protective shell.

[0010] As a further solution of the present invention: the channel switching mechanism also includes two rectangular bars fixedly connected to the inner sides of the first protective shell and the second protective shell, the outer walls of the two rectangular bars are slidably connected with a first driving block, one side of the first driving block is fixedly connected with a third connecting bar, one side of the third connecting bar is fixedly connected with a connecting plate, the top and bottom of the connecting plate are rotatably connected with a rotating wheel, and the top of the cylinder is provided with a power component extending to the inside of the first protective shell and the second protective shell, which is used to drive the first driving block to rotate.

[0011] As a further solution of the present invention: the power assembly includes a reciprocating screw rotatably connected to the inner sides of the first protective shell and the second protective shell, the outer walls of the two reciprocating screws are respectively installed with a first driving block, one end of the two reciprocating screws respectively penetrates through the outer walls of the first protective shell and the second protective shell and is fixedly connected with a second pulley, the outer wall of the drive rod is fixedly connected with the first pulley, and a belt is installed on the outer wall of the first pulley and the outside of the two second pulleys.

[0012] As a further scheme of the present invention: the cleaning mechanism includes a fourth connecting strip fixedly connected to the inner side of the cylinder, two isolation plates are arranged on the inner side of the cylinder, one of the isolation plates is fixedly connected to the fourth connecting strip and fits on the top of the first circular plate, the other isolation plate is fixedly connected to the bottom of the second circular plate, and a second piston plate is slidably connected to the inner sides of the two isolation plates, a fourth intake pipe is fixedly connected to the top of the cylinder, and one end of the fourth intake pipe passes through the inner side of the second piston plate, and the second piston plate is slidably connected to the outer wall of the fourth intake pipe, a second intake pipe is fixedly connected to one side of the cylinder, and one end of the second intake pipe passes through the inner side of another second piston plate, and the other second piston plate is slidably connected to the outer wall of the second intake pipe, and two second rotating plates are fixedly connected to the outer wall of the driving rod, and the two second rotating plates respectively form a first shell for shielding with one second piston plate and one isolation plate.

[0013] As a further solution of the present invention: the cleaning mechanism also includes a fifth connecting strip fixedly connected to the top of the second piston plate, the bottom of the fifth connecting strip is fixedly connected to the first piston plate, two annular circular plates are fixedly connected to the inner side of the cylinder, the inner side of one of the annular circular plates is fixedly connected to a third intake pipe, and the third intake pipe passes through the top of the cylinder, the inner side of the other annular circular plate is fixedly connected to a fifth intake pipe, and the fifth intake pipe passes through one side of the cylinder, one annular circular plate, one first piston plate and one second piston plate form a second shell for shielding, and a driving assembly is provided at the bottom of the third intake pipe and the second rotating plate.

[0014] As a further solution of the present invention: the driving assembly includes a second driving block fixedly connected to the outer wall of the driving rod, the top of the second driving block is provided with two inclined surfaces and two planes, and the two planes are arranged one high and one low, the bottom of the isolation plate is fixedly connected with a sixth connecting strip, the bottom of the sixth connecting strip is fixedly connected with a spherical rod, the end of the spherical rod is arranged to be a spherical surface, the inner side of the isolation plate is fixedly connected with a third connecting plate, and a tension spring is installed between the third connecting plate and the isolation plate.

[0015] The present invention also discloses a multi-stage dust reduction method for a workshop, which uses the multi-stage dust reduction device for a workshop, and comprises the following steps:

[0016] S1. A plurality of atomizing nozzles are installed at the bottom of the water pipe, and the start and stop of the atomizing nozzles are controlled by a PLC controller. The staff connects the water pipe to an external water supply pipeline to supply water to the inside of the water pipe. When the inside of the workshop is dusty and dust reduction is required, the plurality of atomizing nozzles are started by the PLC controller, and the water inside the water pipe is sprayed into the inside of the workshop through the atomizing nozzles to reduce dust inside the workshop. At the same time, the fan is started by the PLC controller, and under the action of the fan, the wetted dust is sucked to the inside of the cylinder, thereby reducing dust in the workshop, thereby improving the air quality of the workshop and the cleanliness of the entire workshop;

[0017] S2, the inner sides of the first through hole, the second through hole, and the third through hole are all installed with filter screens for filtering. When the dust concentration inside the workshop is high, the staff starts the drive motor, and the output end of the drive motor drives the drive rod to rotate, thereby driving the first circular plate to rotate, so that the first circular plate can rotate ninety degrees, so that the second through hole can cover the top of the first through hole, and the third through hole is misaligned with the first through hole, so as to reduce the aperture of the air inlet of the second circular plate, thereby improving the concentration of the airflow, so that the fan can capture and process dust more effectively, thereby improving the cleanliness of the entire workshop. When the interior of the workshop is When the dust concentration on the side is low, the driving motor can drive the first circular plate to rotate ninety degrees again, so that the third through hole is misaligned with the first through hole, and the second through hole is misaligned with the first through hole, so that the gas flow channel from the first through hole becomes larger, thereby realizing that the aperture size of the first through hole opened on the second circular plate can be flexibly adjusted according to the change of dust concentration. By accurately controlling the aperture size of the air inlet, the suction force of the fan can be more effectively utilized to ensure that the best dust reduction effect can be achieved under different dust concentrations. This optimization not only improves the cleaning efficiency of the device, but also extends the service life of the system, thereby optimizing the air volume and suction force and improving the dust removal efficiency;

[0018] S3. When the driving rod rotates to reduce the aperture of the first through hole, the first pulley can be driven to rotate, thereby driving the belt to rotate, thereby driving the two second pulleys to rotate, and then driving the two reciprocating screws to rotate, thereby driving one of the first driving blocks to move downward and driving the other first driving block to move upward. When one of the first driving blocks moves upward, one of the first rotating plates in a group of first rotating plates is pushed to rotate toward the first circular hole through the top of the connecting plate, and the bottom of one of the connecting plates moves away from the other first rotating plate. When the driving motor stops rotating, the first circular hole opened on the upper side of the cylinder is covered by the first rotating plate, and at the same time When the bottom of the connecting plate is moved away from the bottom of the other first rotating plate, the other first rotating plate is reset and opened under the action of the torsion spring. Similarly, the first circular hole at the top of the other side of the cylinder is opened, and the first circular hole at the bottom is closed, so that the four first circular holes are opened alternately in pairs. When the aperture of the first through hole needs to be reduced, the two connecting plates are reset, so that after the aperture of the first through hole is reduced, air can enter from the second circular plate from the top of the first circular plate into the second protective shell, and flow through the second circular hole through the fan to be discharged. When the aperture of the first through hole is increased, air can enter from the top of the first circular plate, and the bottom of the second circular plate is discharged into the second protective shell, so that the front and back sides of the filter can be fully utilized, thereby improving the working efficiency of the device, while reducing the risk of blockage, and improving the stability and durability of the entire device;

[0019] S4, the third air intake pipe, the fourth air intake pipe, the fifth air intake pipe and the second air intake pipe are all connected to an external air pump, a filter bag is installed at the air outlet of the external air pump, the external air pump is controlled by a PLC controller, and the intermittent start of the external air pump can be controlled. When the device is working, the PLC controller can control the start of the external air pump to clean the dust on both sides of the first circular plate and the second circular plate, thereby preventing dust from clogging the filter screens on the inner sides of the first circular plate and the second circular plate and affecting the operation of the device, thereby improving the stability of the device, and at the same time, through regular cleaning, the impact of dust on the device can be reduced, thereby extending the service life of the device;

[0020] S5. When the driving rod rotates 90 degrees from the initial position, the two spherical rods arranged one above and one below slide respectively on a plane on the top of the second driving block, and one is at a higher plane and the other is at a lower plane, so that the first piston plate and the second piston plate remain in the initial state and do not move. At this time, the pores of the second circular plate become smaller. When the driving rod rotates from 90 degrees to 180 degrees, the gaps of the pores of the second circular plate are restored to their initial size, and the spherical rod moves from the higher position to the lower position along the inclined surface arranged on the inner side of the second driving block. In this process, the second piston plate and the first piston plate are driven to move downward synchronously under the action of the tension spring. At this time, the spherical rod located at the bottom moves from the lower position to the higher position of the inclined surface on the second driving block, so that the two second piston plates move, thereby opening the filter screen channel located at the two isolation plate positions, and the filter located between the two annular circular plates. The channel is closed, and an external air pump can be started to clean the closed channel, thereby ensuring that the filtration can always be running during the cleaning process inside the device. When the driving rod rotates from 180 degrees to 270 degrees, the pores of the second circular plate become smaller, and the two spherical rods arranged one above and one below slide respectively relative to a plane on the top of the second driving block, and one is on a high plane and the other is on a low plane, so that the first piston plate and the second piston plate remain in their initial state. When the driving rod rotates from 270 degrees to the initial position, the spherical rod drives the sixth connecting strip to reset under the action of the inclined surface, thereby driving the first piston plate and the second piston plate to reset synchronously, thereby switching channels, so that another closed channel can be cleaned, so that the device does not need to be shut down to perform cleaning work, thereby improving the cleaning efficiency of the device, thereby improving the overall practicality of the device.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Through the cooperation of water pipes and other parts, the dust inside the workshop is reduced. At the same time, the fan is started by the PLC controller. Under the action of the fan, the wetted dust is sucked to the inside of the cylinder, thereby reducing the dust in the workshop, thereby improving the air quality of the workshop and improving the cleanliness of the entire workshop.

[0023] 2. By cooperating with the driving rod and other parts, the first circular plate is driven to rotate, so that the first circular plate can rotate ninety degrees, so that the second through hole can cover the top of the first through hole, and the third through hole is misaligned with the first through hole, so as to reduce the aperture of the air inlet of the second circular plate, thereby improving the concentration of the airflow, so that the fan can capture and process dust more effectively, thereby improving the cleanliness of the entire workshop. When the dust concentration inside the workshop is low, the driving motor can drive the first circular plate to rotate ninety degrees again, so that the third through hole is misaligned with the first through hole, and the second through hole is misaligned with the first through hole, so that the gas flow channel from the inside of the first through hole becomes larger, thereby realizing that the aperture size of the first through hole opened on the second circular plate can be flexibly adjusted according to the change of dust concentration. By accurately controlling the aperture size of the air inlet, the suction force of the fan can be more effectively utilized to ensure that the best dust reduction effect can be achieved under different dust concentrations. This optimization not only improves the cleaning efficiency of the device, but also extends the service life of the system, thereby optimizing the air volume and suction force and improving the dust removal efficiency;

[0024] 3. Through the cooperation of the reciprocating screw and other parts, when the aperture of the first through hole is reduced, the air can enter from the second circular plate from the top of the first circular plate into the second protective shell, and flow through the second circular hole to be discharged through the fan. When the aperture of the first through hole is increased, the air can enter from the top of the first circular plate, and then be discharged from the bottom of the second circular plate into the second protective shell, so that the front and back of the filter can be fully utilized, thereby improving the working efficiency of the device, reducing the risk of blockage, and improving the stability and durability of the entire device;

[0025] 4. Through the cooperation of the first circular plate and other parts, the external air pump cleans the dust on both sides of the first circular plate and the second circular plate, thereby preventing the dust from clogging the inner filter screens of the first circular plate and the second circular plate and affecting the operation of the device, thereby improving the stability of the device. At the same time, through regular cleaning, the impact of dust on the device can be reduced, thereby extending the service life of the device;

[0026] 5. Through the cooperation of the second driving block and other parts, the filter screen channel located at the position of the two isolation plates is opened, and the filter channel located between the two annular circular plates is closed. At this time, the external air pump can be started to clean the closed channel, thereby ensuring that the filtering can always be running during the cleaning process inside the device. When the driving rod rotates from 180 degrees to 270 degrees, the pores of the second circular plate become smaller, and the two spherical rods arranged one above and one below slide respectively relative to a plane on the top of a second driving block, and one is at a high plane and the other is at a low plane, so that the first piston plate and the second piston plate remain in the initial state. When the driving rod rotates from 270 degrees to the initial position, the spherical rod drives the sixth connecting strip to reset under the action of the inclined surface, thereby driving the first piston plate and the second piston plate to reset synchronously, thereby switching channels, so that the other closed channel can be cleaned, so that the device does not need to be shut down to perform cleaning work, thereby improving the cleaning efficiency of the device, thereby improving the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the cylinder structure of the present invention;

[0029] Figure 3 is a cross-sectional view of the channel switching mechanism of the present invention;

[0030] Figure 4 It is an exploded view of the first circular plate and the second circular plate of the present invention;

[0031] Figure 5 It is a partial schematic diagram of the channel switching mechanism of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0033] Figure 7 It is a schematic diagram of the belt structure of the present invention;

[0034] Figure 8 It is a cross-sectional view of the cleaning mechanism of the present invention;

[0035] Fig. 9 It is a schematic diagram of the driving rod structure of the present invention;

[0036] Fig.10 For the present invention Fig. 9 Enlarged view of point B in the middle;

[0037] Fig.11 It is a schematic diagram of the structure of the second driving block of the present invention.

[0038] In the figure: 1, workshop; 2, first connecting strip; 3, water pipe; 4, second connecting strip; 5, cylinder; 6, first protective shell; 7, second protective shell; 8, first suction pipe; 901, driving motor; 902, supporting seat; 903, driving rod; 904, first circular plate; 905, second circular plate; 906, first through hole; 907, second through hole; 908, third through hole; 1001, first circular hole; 1002, rotating seat; 1003, first rotating plate; 1004, torsion spring; 1005, first pulley; 1006, second pulley; 1007, belt; 1008, reciprocating screw rod; 1009, rectangular strip; 1010, first driving block; 1011, first rotating plate; 1012, second rotating plate; 1013, first rotating plate; 1014, torsion spring; 1015, first belt pulley; 1016, second belt pulley; 1017, belt; 1018, reciprocating screw rod; 1019, rectangular strip; 1020, first driving block; 1021, first rotating plate; 1022, first rotating plate; 1023, first rotating plate; 1024, first rotating plate; 1025, first rotating plate; 1026, first rotating plate; 1027, first rotating plate; 1028, first rotating plate; 1029, first rotating plate; 1030, first rotating plate; 1031, first rotating plate; 1032, first rotating plate; 1033, first rotating plate; 1034, first rotating plate; 1035, first rotating plate; 1036, first rotating plate; 1037, first rotating plate; 1038, first rotating plate; 103 11. The third connecting strip; 1012. The connecting plate; 1013. The rotating wheel; 1014. The rotating rod; 1015. The bottom plate; 1016. The second circular hole; 1101. The annular circular plate; 1102. The first piston plate; 1103. The isolating plate; 1104. The fourth connecting strip; 1105. The second piston plate; 1106. The second rotating plate; 1107. The second driving block; 1108. The fifth connecting strip; 1109. The sixth connecting strip; 1110. The third connecting plate; 1111. The second air intake pipe; 1112. The tension spring; 1113. The spherical rod; 1114. The third air intake pipe; 1115. The fourth air intake pipe; 1116. The fifth air intake pipe; 12. The fan. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0041] See also Figures 1 to 11 The present embodiment provides a multi-stage dust suppression device for a workshop, comprising: a workshop 1, a plurality of first connecting strips 2 are fixedly connected to the inner side of the workshop 1, a plurality of water pipes 3 interconnected with each other are installed inside the workshop 1, and the plurality of water pipes 3 are arranged and distributed on the inner side of the workshop 1, and the plurality of first connecting strips 2 are fixedly connected to the water pipes 3; a second connecting strip 4, a plurality of second connecting strips 4 are provided, and the plurality of second connecting strips 4 are fixedly connected to the inner side of the workshop 1, and a cylinder 5 is fixedly connected to the bottom of each second connecting strip 4; a first protective shell 6, the first protective shell 6 is fixedly connected to one side of the cylinder 5, and the other side of the cylinder 5 is fixedly connected to the second protective shell 7; a first suction pipe 8, the first suction pipe 8 Installed at the air intake of the first protective shell 6; fan 12, the fan 12 is installed on the inner side of the cylinder 5; air pressure switching structure, the air pressure switching mechanism is arranged on the inner side of the cylinder 5, and is used to filter impurities at the air intake of the first protective shell 6, the air pressure switching mechanism includes a support seat 902 fixedly connected to the top of the cylinder 5, a driving motor 901 is installed on the top of the support seat 902, the output end of the driving motor 901 passes through the bottom of the support seat 902 and is fixedly connected to a driving rod 903, one end of the driving rod 903 passes through the inner side of the cylinder 5 and is fixedly connected to a first circular plate 904, and the inner side of the cylinder 5 is located at the bottom of the first circular plate 904 and is fixedly connected to a second circular plate 905;

[0042] A plurality of atomizing nozzles are installed at the bottom of the water pipe 3, and the start and stop of the atomizing nozzles are controlled by the PLC controller. The staff connects the water pipe 3 to the external water supply pipeline to supply water to the inside of the water pipe 3. When there is a lot of dust inside the workshop 1 and dust reduction is required, the PLC controller is used to start the plurality of atomizing nozzles, and the water inside the water pipe 3 is sprayed into the workshop 1 through the atomizing nozzles to reduce dust inside the workshop 1. At the same time, the fan 12 is started by the PLC controller. Under the action of the fan 12, the wetted dust is sucked to the inside of the cylinder 5, thereby reducing dust in the workshop, thereby improving the air quality of the workshop and improving the cleanliness of the entire workshop.

[0043] See also Figure 2 to Figure 4 The air pressure switching structure further includes a first through hole 906 formed on the inner side of the second circular plate 905, a third through hole 908 having a size matching that of the first through hole 906 is formed on the inner side of the first circular plate 904, and a second through hole 907 is formed on the inner side of the first circular plate 904, the second through hole 907 and the third through hole 908 are staggered, and the diameter of the second through hole 907 is smaller than that of the third through hole 908;

[0044] The inner sides of the first through hole 906, the second through hole 907, and the third through hole 908 are all installed with filter screens for filtering. When the dust concentration inside the workshop 1 is high, the staff starts the drive motor 901, and the output end of the drive motor 901 drives the drive rod 903 to rotate, thereby driving the first circular plate 904 to rotate, so that the first circular plate 904 can rotate ninety degrees, so that the second through hole 907 can cover the top of the first through hole 906, and the third through hole 908 is misaligned with the first through hole 906, so as to reduce the aperture of the air inlet of the second circular plate 905, thereby improving the concentration of the airflow, so that the fan 12 can capture and process dust more effectively, thereby improving the cleanliness of the entire workshop. When the dust inside the workshop 1 is high, the staff starts the drive motor 901, and the output end of the drive motor 901 drives the drive rod 903 to rotate, thereby driving the first circular plate 904 to rotate ninety degrees, so that the first circular plate 904 can rotate ninety degrees, so that the second through hole 907 can cover the top of the first through hole 906, and the third through hole 908 is misaligned with the first through hole 906, so as to achieve the purpose of reducing the aperture of the air inlet of the second circular plate 905, thereby improving the concentration of the airflow, and allowing the fan 12 to capture and process dust more effectively, thereby improving the cleanliness of the entire workshop. When the concentration is low, the driving motor 901 can drive the first circular plate 904 to rotate ninety degrees again, so that the third through hole 908 is misaligned with the first through hole 906, and the second through hole 907 is misaligned with the first through hole 906, so that the gas flow channel from the inside of the first through hole 906 becomes larger, thereby achieving the flexibility to adjust the aperture size of the first through hole 906 opened on the second circular plate 905 according to the change in dust concentration. By precisely controlling the aperture size of the air inlet, the suction force of the fan 12 can be more effectively utilized to ensure that the best dust reduction effect can be achieved under different dust concentrations. This optimization not only improves the cleaning efficiency of the device, but also extends the service life of the system, thereby optimizing the air volume and suction force and improving the dust removal efficiency.

[0045] See also Figure 2 to Figure 8, a channel switching mechanism, the channel switching mechanism is arranged on the inner side of the first protective shell 6 and the second protective shell 7, and is used to switch the air inlet channel of the cylinder 5; the channel switching mechanism includes two groups of rotating seats 1002 fixedly connected to the outer walls of both sides of the cylinder 5, each group of rotating seats 1002 is provided with two, and the inner side of each rotating seat 1002 is rotatably connected to a rotating rod 1014, one end of the rotating rod 1014 penetrates the inner side of the rotating seat 1002 and is fixedly connected to the first rotating plate 1003, the rotating rod 1014 and the rotating seat 1002 A torsion spring 1004 is installed between the two sides of the cylinder 5, and two groups of first circular holes 1001 are opened on the outer walls of both sides of the cylinder 5 to penetrate the inner side of the cylinder 5, and each group of first circular holes 1001 is provided with two, and each first circular hole 1001 is correspondingly arranged on one side of a rotating seat 1002, and the inner side of the cylinder 5 is fixedly connected to the bottom plate 1015, and the outer wall of the cylinder 5 is opened with a second circular hole 1016 that penetrates the inner side of the cylinder 5, and the second circular hole 1016 is communicated with the inside of the second protective shell 7; the channel switching mechanism also includes a fixed connection between the first protective shell 6 and Two rectangular bars 1009 are provided inside the second protective shell 7, and the outer walls of the two rectangular bars 1009 are both slidably connected with the first driving block 1010, one side of the first driving block 1010 is fixedly connected with the third connecting bar 1011, one side of the third connecting bar 1011 is fixedly connected with the connecting plate 1012, the top and bottom of the connecting plate 1012 are rotatably connected with a rotating wheel 1013, and the top of the cylinder 5 is provided with a power component extending to the inside of the first protective shell 6 and the second protective shell 7 for driving the first driving block 1010 to rotate; The force assembly includes a reciprocating screw rod 1008 rotatably connected to the inner side of the first protective shell 6 and the second protective shell 7, and the outer walls of the two reciprocating screw rods 1008 are respectively installed with a first driving block 1010, and one end of the two reciprocating screw rods 1008 passes through the outer walls of the first protective shell 6 and the second protective shell 7 and is fixedly connected with a second pulley 1006, and the outer wall of the driving rod 903 is fixedly connected with a first pulley 1005, and the outer wall of the first pulley 1005 and the outside of the two second pulleys 1006 are installed with a belt 1007;

[0046] When the driving rod 903 rotates to reduce the aperture of the first through hole 906, the first pulley 1005 can be driven to rotate, thereby driving the belt 1007 to rotate, thereby driving the two second pulleys 1006 to rotate, and then driving the two reciprocating screw rods 1008 to rotate, thereby driving a first driving block 1010 to move downward and driving the other first driving block 1010 to move upward. When a first driving block 1010 moves upward, a first rotating plate 1003 in a group of first rotating plates 1003 is pushed to rotate toward the first circular hole 1001 through the top of a connecting plate 1012, and the bottom of a connecting plate 1012 moves away from the other first rotating plate 1003. When the driving motor 901 stops rotating, the first circular hole 1001 opened on the upper side of the cylinder 5 is covered by a first rotating plate 1003, and the connecting plate 1012 is The bottom of the connecting plate 1012 is moved away from the bottom of the other first rotating plate 1003, so that the other first rotating plate 1003 is reset and opened under the action of the torsion spring 1004. Similarly, the first circular hole 1001 located at the top of the other side of the cylinder 5 is opened, and the first circular hole 1001 located at the bottom is closed, so that the four first circular holes 1001 are opened alternately in pairs. When it is necessary to reduce the aperture of the first through hole 906, the two connecting plates 1012 are reset, so that after the aperture of the first through hole 906 is reduced, air can enter from the second circular plate 905 from the top of the first circular plate 904 into the second protective shell 7, and flow through the second circular hole 1016 through the fan 12 to be discharged. When the aperture of the first through hole 906 is increased, air can enter from the top of the first circular plate 904, and then be discharged from the bottom of the second circular plate 905 to the second protective shell 7, so that the front and back sides of the filter can be fully utilized, thereby improving the working efficiency of the device, while reducing the risk of blockage, and improving the stability and durability of the entire device.

[0047] See also Figure 8 to Figure 10, a cleaning mechanism is arranged on the inner side of the cylinder 5, and is used to clean the impurities at the first circular plate 904 and the second circular plate 905; the cleaning mechanism includes a fourth connecting strip 1104 fixedly connected to the inner side of the cylinder 5, and two isolation plates 1103 are arranged on the inner side of the cylinder 5, one of the isolation plates 1103 is fixedly connected to the fourth connecting strip 1104 and is attached to the top of the first circular plate 904, and the other isolation plate 1103 is fixedly connected to the bottom of the second circular plate 905, and the two isolation plates 1103 The inner side of each cylinder 5 is slidably connected to a second piston plate 1105, a fourth air intake pipe 1115 is fixedly connected to the top of the cylinder 5, and one end of the fourth air intake pipe 1115 penetrates the inner side of the second piston plate 1105, and the second piston plate 1105 is slidably connected to the outer wall of the fourth air intake pipe 1115, a second air intake pipe 1111 is fixedly connected to one side of the cylinder 5, and one end of the second air intake pipe 1111 penetrates the inner side of another second piston plate 1105, and another second piston plate 1105 is slidably connected to the second piston plate 1105. The outer wall of the suction pipe 1111 and the outer wall of the driving rod 903 are fixedly connected to two second rotating plates 1106, and the two second rotating plates 1106 respectively form a first shell for shielding with a second piston plate 1105 and an isolation plate 1103; the cleaning mechanism also includes a fifth connecting strip 1108 fixedly connected to the top of the second piston plate 1105, and the bottom of the fifth connecting strip 1108 is fixedly connected to the first piston plate 1102, and the inner side of the cylinder 5 is fixedly connected to two annular circular plates 1101, a A third air intake pipe 1114 is fixedly connected to the inner side of the annular circular plate 1101, and the third air intake pipe 1114 penetrates to the top of the cylinder 5. A fifth air intake pipe 1116 is fixedly connected to the inner side of another annular circular plate 1101, and the fifth air intake pipe 1116 penetrates to one side of the cylinder 5. An annular circular plate 1101, a first piston plate 1102 and a second piston plate 1105 form a second housing for shielding. A driving assembly is provided at the bottom of the second rotating plate 1106 of the third air intake pipe 1114.

[0048] The third air intake pipe 1114, the fourth air intake pipe 1115, the fifth air intake pipe 1116 and the second air intake pipe 1111 are all connected to an external air pump. A filter bag is installed at the air outlet of the external air pump. The external air pump is controlled by a PLC controller, which can control the intermittent start of the external air pump. When the device is working, the PLC controller can control the start of the external air pump to clean the dust on both sides of the first circular plate 904 and the second circular plate 905, thereby preventing dust from clogging the inner filter screens of the first circular plate 904 and the second circular plate 905 and affecting the operation of the device, thereby improving the stability of the device. At the same time, through regular cleaning, the impact of dust on the device can be reduced, thereby extending the service life of the device.

[0049] See also Figures 9 to 11The driving assembly includes a second driving block 1107 fixedly connected to the outer wall of the driving rod 903, the top of the second driving block 1107 is provided with two inclined surfaces and two planes, and the two planes are arranged one high and one low, the bottom of the isolation plate 1103 is fixedly connected with a sixth connecting bar 1109, the bottom of the sixth connecting bar 1109 is fixedly connected with a spherical rod 1113, the end of the spherical rod 1113 is arranged as a spherical surface, the inner side of the isolation plate 1103 is fixedly connected with a third connecting plate 1110, and a tension spring 1112 is installed between the third connecting plate 1110 and the isolation plate 1103;

[0050] When the driving rod 903 rotates 90 degrees from the initial position, the two spherical rods 1113 arranged one above and one below slide on a plane at the top of the second driving block 1107, respectively, and one is at a higher plane and the other is at a lower plane, so that the first piston plate 1102 and the second piston plate 1105 remain in the initial state and do not move. At this time, the pore of the second circular plate 905 becomes smaller. When the driving rod 903 rotates from 90 degrees to 180 degrees, the gap of the pore of the second circular plate 905 returns to its initial size. The spherical rod 1113 moves downward along the inclined surface set on the inner side of the second driving block 1107. During this process, the second piston plate 1105 and the first piston plate 1102 are driven to move downward synchronously under the action of the tension spring 1112. At this time, the spherical rod 1113 located below moves from the lower part of the inclined surface of the second driving block 1107 to the higher part, so that the two second piston plates 1105 move, thereby opening the filter screen channel located at the position of the two isolation plates 1103, and the filter screen channel located between the two annular circular plates 1101 is opened. The filtration channel is closed, and the external air pump can be started to clean the closed channel, thereby ensuring that the filtration can always be running during the cleaning process inside the device. When the driving rod 903 rotates from 180 degrees to 270 degrees, the pores of the second circular plate 905 become smaller, and the two spherical rods 1113 arranged one above and one below slide respectively relative to a plane on the top of a second driving block 1107, and one is on a high plane and the other is on a low plane, so that the first piston plate 1102 and the second piston plate 1105 remain in the initial state and do not move. When the driving rod 903 rotates from 270 degrees to the initial position, the spherical rod 1113 drives the sixth connecting strip 1109 to reset under the action of the inclined surface, thereby driving the first piston plate 1102 and the second piston plate 1105 to reset synchronously, thereby switching channels, so that another closed channel can be cleaned, so that the device does not need to be shut down to perform cleaning work, thereby improving the cleaning efficiency of the device, thereby improving the overall practicality of the device.

[0051] In combination with the above-mentioned multi-stage dust suppression device for a workshop, a multi-stage dust suppression method for a workshop is provided, which specifically includes the following steps:

[0052] S1. Multiple atomizing nozzles are installed at the bottom of the water pipe 3. The start and stop of the atomizing nozzles are controlled by the PLC controller. The staff connects the water pipe 3 to the external water supply pipeline to supply water to the inside of the water pipe 3. When there is a lot of dust inside the workshop 1 and dust reduction is required, the multiple atomizing nozzles are started by the PLC controller, and the water inside the water pipe 3 is sprayed into the workshop 1 through the atomizing nozzles to reduce dust inside the workshop 1. At the same time, the fan 12 is controlled to start by the PLC controller. Under the action of the fan 12, the wetted dust is sucked to the inside of the cylinder 5, thereby achieving dust reduction of the workshop dust, thereby improving the air quality of the workshop and improving the cleanliness of the entire workshop;

[0053] S2, the inner sides of the first through hole 906, the second through hole 907, and the third through hole 908 are all installed with filter screens for filtering. When the dust concentration inside the workshop 1 is high, the staff starts the drive motor 901, and the output end of the drive motor 901 drives the drive rod 903 to rotate, thereby driving the first circular plate 904 to rotate, so that the first circular plate 904 can rotate ninety degrees, so that the second through hole 907 can cover the top of the first through hole 906, and the third through hole 908 is misaligned with the first through hole 906, so as to reduce the aperture of the air inlet of the second circular plate 905, thereby improving the concentration of the airflow, so that the fan 12 can capture and process dust more effectively, thereby improving the cleanliness of the entire workshop. When the inner side of the workshop 1 is When the dust concentration is low, the driving motor 901 can drive the first circular plate 904 to rotate ninety degrees again, so that the third through hole 908 is misaligned with the first through hole 906, and the second through hole 907 is misaligned with the first through hole 906, so that the gas flow channel from the first through hole 906 becomes larger, thereby realizing that the aperture size of the first through hole 906 opened on the second circular plate 905 can be flexibly adjusted according to the change of dust concentration. By accurately controlling the aperture size of the air inlet, the suction force of the fan 12 can be more effectively utilized to ensure that the best dust reduction effect can be achieved under different dust concentrations. This optimization not only improves the cleaning efficiency of the device, but also extends the service life of the system, thereby optimizing the air volume and suction force and improving the dust removal efficiency;

[0054] S3. When the driving rod 903 rotates to reduce the aperture of the first through hole 906, the first pulley 1005 can be driven to rotate, thereby driving the belt 1007 to rotate, thereby driving the two second pulleys 1006 to rotate, and then driving the two reciprocating screw rods 1008 to rotate, thereby driving a first driving block 1010 to move downward and driving the other first driving block 1010 to move upward. When a first driving block 1010 moves upward, a first rotating plate 1003 in a group of first rotating plates 1003 is pushed to rotate toward the first circular hole 1001 through the top of a connecting plate 1012, and the bottom of a connecting plate 1012 moves away from the other first rotating plate 1003. When the driving motor 901 stops rotating, the first circular hole 1001 opened on the upper side of the cylinder 5 is covered by a first rotating plate 1003, and at the same time When the bottom of the connecting plate 1012 is moved away from the bottom of the other first rotating plate 1003, the other first rotating plate 1003 is reset and opened under the action of the torsion spring 1004. Similarly, the first circular hole 1001 at the top of the other side of the cylinder 5 is opened, and the first circular hole 1001 at the bottom is closed, so that the four first circular holes 1001 are opened alternately in pairs. When the aperture of the first through hole 906 needs to be reduced, the two connecting plates 1012 are reset, so that after the aperture of the first through hole 906 is reduced, air can enter from the second circular plate 905 from the top of the first circular plate 904 into the second protective shell 7, and flow through the second circular hole 1016 through the fan 12 to be discharged. When the aperture of the first through hole 906 is increased, air can enter from the top of the first circular plate 904, and then be discharged from the bottom of the second circular plate 905 to the second protective shell 7, so that the front and back sides of the filter can be fully utilized, thereby improving the working efficiency of the device, while reducing the risk of blockage, and improving the stability and durability of the entire device;

[0055] S4, the third air intake pipe 1114, the fourth air intake pipe 1115, the fifth air intake pipe 1116 and the second air intake pipe 1111 are all connected to an external air pump. A filter bag is installed at the air outlet of the external air pump. The external air pump is controlled by a PLC controller, which can control the intermittent start of the external air pump. When the device is working, the PLC controller can control the start of the external air pump to clean the dust on both sides of the first circular plate 904 and the second circular plate 905, thereby preventing dust from clogging the inner filter screens of the first circular plate 904 and the second circular plate 905 and affecting the operation of the device, thereby improving the stability of the device. At the same time, through regular cleaning, the impact of dust on the device can be reduced, thereby extending the service life of the device;

[0056] S5. When the driving rod 903 rotates 90 degrees from the initial position, the two spherical rods 1113 arranged one above and one below slide on a plane at the top of the second driving block 1107, respectively, and one is at a higher plane and the other is at a lower plane, so that the first piston plate 1102 and the second piston plate 1105 remain in the initial state. At this time, the pores of the second circular plate 905 become smaller. When the driving rod 903 rotates from 90 degrees to 180 degrees, the pores of the second circular plate 905 return to the initial state. The spherical rod 1113 moves downward along the inclined surface set on the inner side of the second driving block 1107. During this process, the second piston plate 1105 and the first piston plate 1102 are driven to move downward synchronously under the action of the tension spring 1112. At this time, the spherical rod 1113 located below moves from the lower part of the inclined surface of the second driving block 1107 to the higher part, so that the two second piston plates 1105 move, thereby opening the filter screen channels located at the positions of the two isolation plates 1103, and the filter screen channels located between the two annular circular plates 1101 are opened. The filtering channel between the two ends is closed. At this time, the external air pump can be started to clean the closed channel, thereby ensuring that the filtering can always be running during the cleaning process inside the device. When the driving rod 903 rotates from 180 degrees to 270 degrees, the pores of the second circular plate 905 become smaller, and the two spherical rods 1113 arranged one above and one below slide respectively relative to a plane on the top of a second driving block 1107, and one is on a high plane and the other is on a low plane, so that the first piston plate 1102 and the second piston plate 1105 remain in the initial state. When the driving rod 903 rotates from 270 degrees to the initial position, the spherical rod 1113 drives the sixth connecting strip 1109 to reset under the action of the inclined surface, thereby driving the first piston plate 1102 and the second piston plate 1105 to reset synchronously, thereby switching channels, so that another closed channel can be cleaned, so that the device does not need to be shut down to perform cleaning work, thereby improving the cleaning efficiency of the device, thereby improving the overall practicality of the device.

[0057] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-stage dust suppression device for workshops, characterized in that: include: A workshop (1), wherein a plurality of first connecting strips (2) are fixedly connected to the inner side of the workshop (1), a plurality of water pipes (3) which are interconnected are installed inside the workshop (1), and the plurality of water pipes (3) are arranged and distributed on the inner side of the workshop (1), and the plurality of first connecting strips (2) are fixedly connected to the water pipes (3); A second connecting bar (4), wherein a plurality of the second connecting bars (4) are provided, and the plurality of the second connecting bars (4) are fixedly connected to the inner side of the workshop (1), and a cylinder (5) is fixedly connected to the bottom of each second connecting bar (4); A first protective shell (6), the first protective shell (6) being fixedly connected to one side of the cylinder (5), and a second protective shell (7) being fixedly connected to the other side of the cylinder (5); a first air intake pipe (8), the first air intake pipe (8) being installed at the air intake port of the first protective shell (6); a fan (12), the fan (12) being mounted on the inner side of the cylinder (5); An air pressure switching structure, wherein the air pressure switching mechanism is arranged on the inner side of the cylinder (5) and is used for filtering impurities at the air intake port of the first protective shell (6), the air pressure switching mechanism comprising a support seat (902) fixedly connected to the top of the cylinder (5), a driving motor (901) being installed on the top of the support seat (902), an output end of the driving motor (901) passing through the bottom of the support seat (902) and being fixedly connected to a driving rod (903), one end of the driving rod (903) passing through the inner side of the cylinder (5) and being fixedly connected to a first circular plate (904), and a second circular plate (905) being fixedly connected to the inner side of the cylinder (5) and located at the bottom of the first circular plate (904); a channel switching mechanism, the channel switching mechanism being arranged on the inner sides of the first protective shell (6) and the second protective shell (7) and being used for switching the air inlet channel of the cylinder (5); A cleaning mechanism, the cleaning mechanism is arranged on the inner side of the cylinder (5) and is used to clean impurities on the first circular plate (904) and the second circular plate (905).

2. A multi-stage dust suppression device for workshops according to claim 1, characterized in that: The air pressure switching structure also includes a first through hole (906) opened on the inner side of the second circular plate (905), a third through hole (908) matching the size of the first through hole (906) is opened on the inner side of the first circular plate (904), and a second through hole (907) is also opened on the inner side of the first circular plate (904), the second through hole (907) and the third through hole (908) are staggered, and the diameter of the second through hole (907) is smaller than the diameter of the third through hole (908).

3. A multi-stage dust suppression device for workshops according to claim 2, characterized in that: The channel switching mechanism comprises two groups of rotating seats (1002) fixedly connected to the outer walls of both sides of the cylinder (5), each group of the rotating seats (1002) is provided with two, the inner side of each rotating seat (1002) is rotatably connected to a rotating rod (1014), one end of the rotating rod (1014) passes through the inner side of the rotating seat (1002) and is fixedly connected to a first rotating plate (1003), a torsion spring (1004) is installed between the rotating rod (1014) and the rotating seat (1002), the cylinder ( Two groups of first circular holes (1001) are provided on the outer walls on both sides thereof and penetrate to the inner side of the cylinder (5), each group of the first circular holes (1001) is provided with two, and each of the first circular holes (1001) is correspondingly provided on one side of a rotating seat (1002), the inner side of the cylinder (5) is fixedly connected to a bottom plate (1015), the outer wall of the cylinder (5) is provided with a second circular hole (1016) which penetrates to the inner side of the cylinder (5), and the second circular hole (1016) is communicated with the interior of the second protective shell (7).

4. A multi-stage dust suppression device for workshops according to claim 3, characterized in that: The channel switching mechanism further comprises two rectangular bars (1009) fixedly connected to the inner sides of the first protective shell (6) and the second protective shell (7); the outer walls of the two rectangular bars (1009) are both slidably connected to a first driving block (1010); a third connecting bar (1011) is fixedly connected to one side of the first driving block (1010); a connecting plate (1012) is fixedly connected to one side of the third connecting bar (1011); a rotating wheel (1013) is rotatably connected to the top and bottom of the connecting plate (1012); and a power component is provided at the top of the cylinder (5), extending into the inside of the first protective shell (6) and the second protective shell (7) and used for driving the first driving block (1010) to rotate.

5. A multi-stage dust suppression device for workshops according to claim 4, characterized in that: The power assembly comprises a reciprocating screw (1008) rotatably connected to the inner sides of the first protective shell (6) and the second protective shell (7); the outer walls of the two reciprocating screws (1008) are respectively provided with a first driving block (1010); one end of the two reciprocating screws (1008) respectively penetrates through the outer walls of the first protective shell (6) and the second protective shell (7) and is fixedly connected to a second pulley (1006); the outer wall of the driving rod (903) is fixedly connected to a first pulley (1005); and a belt (1007) is installed on the outer wall of the first pulley (1005) and the outside of the two second pulleys (1006).

6. A multi-stage dust suppression device for workshops according to claim 5, characterized in that: The cleaning mechanism comprises a fourth connecting strip (1104) fixedly connected to the inner side of the cylinder (5); two isolation plates (1103) are arranged on the inner side of the cylinder (5); one of the isolation plates (1103) is fixedly connected to the fourth connecting strip (1104) and fits on the top of the first circular plate (904); the other isolation plate (1103) is fixedly connected to the bottom of the second circular plate (905); the inner sides of the two isolation plates (1103) are both slidably connected to a second piston plate (1105); a fourth air intake pipe (1115) is fixedly connected to the top of the cylinder (5); and one end of the fourth air intake pipe (1115) passes through the second piston plate (1105). 105), the second piston plate (1105) is slidably connected to the outer wall of the fourth intake pipe (1115), a second intake pipe (1111) is fixedly connected to one side of the cylinder (5), and one end of the second intake pipe (1111) passes through the inner side of another second piston plate (1105), and the other second piston plate (1105) is slidably connected to the outer wall of the second intake pipe (1111), and two second rotating plates (1106) are fixedly connected to the outer wall of the driving rod (903), and the two second rotating plates (1106) respectively form a first shell for shielding with one second piston plate (1105) and one isolation plate (1103).

7. A multi-stage dust suppression device for workshops according to claim 6, characterized in that: The cleaning mechanism also includes a fifth connecting strip (1108) fixedly connected to the top of the second piston plate (1105), the bottom of the fifth connecting strip (1108) is fixedly connected to the first piston plate (1102), the inner side of the cylinder (5) is fixedly connected to two annular circular plates (1101), the inner side of one of the annular circular plates (1101) is fixedly connected to a third air intake pipe (1114), and the third air intake pipe (1114) passes through the top of the cylinder (5), the inner side of the other annular circular plate (1101) is fixedly connected to a fifth air intake pipe (1116), and the fifth air intake pipe (1116) passes through one side of the cylinder (5), the annular circular plate (1101), the first piston plate (1102) and the second piston plate (1105) form a second shell for shielding, and a driving assembly is provided at the bottom of the third air intake pipe (1114) and the second rotating plate (1106).

8. A multi-stage dust suppression device for workshops according to claim 7, characterized in that: The driving assembly comprises a second driving block (1107) fixedly connected to the outer wall of the driving rod (903); the top of the second driving block (1107) is provided with two inclined surfaces and two planes, and the two planes are arranged one high and one low; the bottom of the isolation plate (1103) is fixedly connected to a sixth connecting bar (1109); the bottom of the sixth connecting bar (1109) is fixedly connected to a spherical rod (1113); the end of the spherical rod (1113) is arranged to be a spherical surface; the inner side of the isolation plate (1103) is fixedly connected to a third connecting plate (1110); a tension spring (1112) is installed between the third connecting plate (1110) and the isolation plate (1103).

9. A multi-stage dust reduction method for a workshop, characterized in that: The multi-stage dust suppression device for workshops according to claim 8 comprises the following steps: S1. A plurality of atomizing nozzles are installed at the bottom of the water pipe (3). The start and stop of the atomizing nozzles are controlled by a PLC controller. A worker connects the water pipe (3) to an external water supply pipeline to supply water to the inside of the water pipe (3). When dust is much inside the workshop (1) and dust reduction is required, the plurality of atomizing nozzles are started by the PLC controller. The water inside the water pipe (3) is sprayed into the inside of the workshop (1) through the atomizing nozzles to reduce dust inside the workshop (1). At the same time, the fan (12) is started by the PLC controller. Under the action of the fan (12), the wetted dust is sucked to the inside of the cylinder (5), thereby reducing dust in the workshop, thereby improving the air quality of the workshop and the cleanliness of the entire workshop; S2. Filter screens for filtering are installed on the inner sides of the first through hole (906), the second through hole (907), and the third through hole (908). When the dust concentration inside the workshop (1) is high, the staff starts the drive motor (901), and the output end of the drive motor (901) drives the drive rod (903) to rotate, thereby driving the first circular plate (904) to rotate, so that the first circular plate (904) can rotate ninety degrees, so that the second through hole (907) can cover the top of the first through hole (906), and at the same time, the third through hole (908) is misaligned with the first through hole (906), so as to reduce the aperture of the air inlet of the second circular plate (905), thereby improving the concentration of the airflow, so that the fan (12) can capture and process dust more effectively, thereby improving the overall workshop. Cleanliness, when the dust concentration inside the workshop (1) is low, the drive motor (901) can drive the first circular plate (904) to rotate ninety degrees again, so that the third through hole (908) is misaligned with the first through hole (906), and the second through hole (907) is misaligned with the first through hole (906), so that the gas flow channel from the inside of the first through hole (906) becomes larger, thereby achieving the flexibility of adjusting the aperture size of the first through hole (906) opened on the second circular plate (905) according to the change of dust concentration. By accurately controlling the aperture size of the air inlet, the suction force of the fan 12 can be more effectively utilized to ensure that the best dust reduction effect can be achieved under different dust concentrations. This optimization not only improves the cleaning efficiency of the device, but also extends the service life of the system, thereby optimizing the air volume and suction force and improving the dust removal efficiency; S3. When the driving rod (903) rotates to reduce the diameter of the first through hole (906), the first pulley (1005) can be driven to rotate, thereby driving the belt (1007) to rotate, thereby driving the two second pulleys (1006) to rotate, and then driving the two reciprocating screws (1008) to rotate, thereby driving one of the first driving blocks (1010) to move downward and driving another of the first driving blocks (1010) to move upward. When one of the first driving blocks (1010) moves upward, one of the first rotating plates (1003) in a group of the first rotating plates (1003) is pushed to rotate in the direction of the first circular hole (1001) through the top of one of the connecting plates (1012), and the bottom of one of the connecting plates (1012) moves away from the other of the first rotating plates (1003). When the driving motor (901) stops rotating, the first circular hole (1001) opened on the upper side of the cylinder (5) is covered by one of the first rotating plates (1003). At the same time, the bottom of the connecting plate (1012) is moved away from the bottom of the other first rotating plate (1003), so that the other first rotating plate (1003) is reset and opened under the action of the torsion spring (1004). Similarly, the first circular hole (1001) located at the top of the other side of the cylinder (5) is opened, and the first circular hole (1001) located at the bottom is closed, so that the four first circular holes (1001) are opened alternately in pairs. When the aperture of the first through hole (906) needs to be reduced, the two connecting plates (1012) are closed. The connecting plate (1012) is reset, so that when the aperture of the first through hole (906) is reduced, air can enter from the second circular plate (905) from the top of the first circular plate (904) into the second protective shell (7), and flow through the second circular hole (1016) through the fan (12) and be discharged. When the aperture of the first through hole (906) is increased, air can enter from the top of the first circular plate (904), and then be discharged from the bottom of the second circular plate (905) into the second protective shell (7), so that the front and back sides of the filter can be fully utilized, thereby improving the working efficiency of the device, while reducing the risk of blockage and improving the stability and durability of the entire device; S4, the third air intake pipe (1114), the fourth air intake pipe (1115), the fifth air intake pipe (1116) and the second air intake pipe (1111) are all connected to an external air pump, a filter bag is installed at the air outlet of the external air pump, the external air pump is controlled by a PLC controller, and the intermittent start of the external air pump can be controlled. When the device is working, the PLC controller can control the start of the external air pump, so as to clean the dust on both sides of the first circular plate (904) and the second circular plate (905), thereby preventing the dust from clogging the inner filter screens of the first circular plate (904) and the second circular plate (905) and affecting the operation of the device, thereby improving the stability of the device, and at the same time, through regular cleaning, the influence of dust on the device can be reduced, thereby extending the service life of the device; S5. When the driving rod (903) rotates 90 degrees from the initial position, the two spherical rods (1113) arranged one above and one below slide on a plane at the top of the second driving block (1107), respectively, and one is on a higher plane and the other is on a lower plane, so that the first piston plate (1102) and the second piston plate (1105) remain in their initial state and do not move. At this time, the pore of the second circular plate (905) becomes smaller. When the driving rod (903) rotates from 90 degrees to 180 degrees, the pore of the second circular plate (905) is restored to its original state. When the spherical rod (1113) reaches its initial size, it moves along the inclined surface provided on the inner side of the second driving block (1107) from the upper position to the lower position. During this process, the second piston plate (1105) and the first piston plate (1102) are driven to move downward synchronously under the action of the tension spring (1112). At this time, the spherical rod (1113) located below moves from the lower position of the inclined surface on the second driving block (1107) to the upper position, thereby moving the two second piston plates (1105), thereby opening the filter screen channels located at the positions of the two isolation plates (1103). When the filtering channel between the two annular circular plates (1101) is closed, an external air pump can be started to clean the closed channel, thereby ensuring that the filtering can always be running during the cleaning process inside the device. When the driving rod (903) rotates from 180 degrees to 270 degrees, the pores of the second circular plate (905) become smaller, and the two spherical rods (1113) arranged one above and one below slide on a plane at the top of the second driving block (1107), respectively, and one is on a high plane and the other is on a low plane, so that the first piston plate (11 02) and the second piston plate (1105) remain in the initial state and do not move. When the driving rod (903) rotates from 270 degrees to the initial position, the spherical rod (1113) drives the sixth connecting strip (1109) to reset under the action of the inclined surface, thereby driving the first piston plate (1102) and the second piston plate (1105) to reset synchronously, thereby switching channels, so that another closed channel can be cleaned, so that the device does not need to be shut down to perform cleaning work, thereby improving the cleaning efficiency of the device, thereby improving the overall practicality of the device.

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