A dust control and collection device for board cutting at construction sites

Abstract

This invention provides a dust control and collection device for cutting sheet metal at a construction site, comprising a three-way tank, a flushing mechanism, and an atomizing mechanism. The three-way tank has a horizontally arranged air inlet. The flushing mechanism includes a dividing plate, an airflow pipe, and a flushing jet nozzle. The dividing plate is fixedly installed at the air inlet. When the dust-laden airflow enters from the air inlet, it is directed to the upper and lower air vent structures. The dust-laden airflow entering the lower air vent structure is transmitted to the flushing jet nozzle through the airflow pipe, causing the airflow discharged from the flushing jet nozzle to collide with the dust-laden airflow entering the upper air vent structure, thereby slowing down the flow rate of the dust-laden airflow. Then, the upper and lower spray nozzles spray to adsorb the dust-laden airflow. Because the flow rate of the dust-laden airflow is slowed down, the atomized particles can better adsorb the dust particles in the dust-laden airflow, thereby improving the atomization effect and achieving the purpose of improving the dust control effect.

Description

Technical Field

[0001] This invention relates to the field of board processing technology, specifically a dust control and collection device for board cutting at construction sites. Background Technology

[0002] Architectural decoration is short for architectural decoration and renovation engineering. Architectural decoration refers to the various treatments applied to the interior and exterior surfaces and spaces of a building using decorative materials or ornaments to protect its main structure, improve its physical performance and functionality, and beautify it. Architectural decoration is an indispensable part of people's lives.

[0003] Patent publication number CN212636022U discloses a dust collection device for sheet metal processing and cutting. By placing the suction device at the bottom of the cutting table and opening a strip-shaped negative pressure port on the table for negative pressure suction, it effectively prevents dust from being blown away. The dust removal effect is significantly improved compared to top suction. At the same time, the dust can be tightly adhered after the dust collection device is designed, which facilitates dust collection and has a buffering effect on direct suction by the fan. Patent publication number CN219442860U discloses a dust treatment device. In use, the dust generated by the sheet metal processing and cutting machine enters the sheet metal cutting chamber. The operator turns on the suction pump, and the dust is sucked from the sheet metal cutting chamber into the suction pipe assembly. It then enters the dust removal mechanism through the second end of the suction pipe assembly. The dust removal mechanism completes the wetting and dissolution of the dust. Finally, the excess dust is discharged from the dust treatment device. The entire process does not require the processed sheet metal to be wetted to complete the treatment of the dust generated by cutting the sheet metal. The arrangement of the suction pump also improves the dust treatment efficiency.

[0004] Although the above-mentioned patent can collect and treat the dust generated during the cutting of sheet metal, it still has the following drawbacks: 1. The dust settles slowly after being collected, making it easy for the dust to drift out of the device and cause re-contamination; 2. When the dust is collected in the device for atomization and settling, the dust flow rate is too fast, which causes the atomized particles to not be able to effectively adsorb the dust particles, resulting in poor settling effect. Summary of the Invention

[0005] The purpose of this invention is to provide a dust control and collection device for cutting boards at construction sites, which aims to solve the problem in the prior art where the collected dust has a poor atomization effect due to its excessive flow rate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: the construction site board cutting dust control and collection device includes a three-way tank, a flushing mechanism and an atomizing mechanism;

[0007] The three-way tank body is provided with a horizontally arranged air inlet and an exhaust outlet;

[0008] The anti-flush mechanism includes a dividing plate, an airflow pipe, and an anti-flush jet head. The dividing plate is fixedly installed at the air inlet and divides the air inlet into an upper air inlet structure and a lower air inlet structure that are spaced apart vertically. The airflow pipe is laid inside the lower air inlet structure. The anti-flush jet head is installed on the three-way tank and corresponds to the upper air inlet structure on the left and right. The airflow pipe is used to connect with the anti-flush jet head so that the airflow discharged from the anti-flush jet head collides with the dust-laden airflow flowing into the upper air inlet structure to slow down the flow rate of the dust-laden airflow.

[0009] The upper air inlet structure gradually increases in size from the air inlet to the interior, thereby reducing the airflow velocity; the lower air inlet structure gradually decreases in size from the air inlet to the interior, thereby increasing the airflow velocity of the dust-laden airflow entering the lower air inlet structure, so that it can flow through the airflow pipe to the opposing jet head.

[0010] The atomizing mechanism includes a liquid reservoir, a delivery pipe, an upper spray head, and a lower spray head. The upper spray head is mounted on a three-way tank, and the lower spray head is mounted on a partition plate. The spray direction of the upper spray head is aimed at the area where the dust-laden airflow passes through the upper vent structure, and the spray direction of the lower spray head is aimed at the collision area formed by the jet nozzle and the upper vent structure. The liquid reservoir is connected to the upper and lower spray heads through the delivery pipe, so that the upper and lower spray heads spray out the liquid in the liquid reservoir.

[0011] Preferably, the bottom of the three-way can is detachably connected to the storage tank, the air inlet is horizontally arranged on the upper air inlet structure of the three-way can and a flow rate sensor is installed, the flow rate sensor is controlled and connected to the right side of the can by the flushing mechanism and the atomizing mechanism respectively, and the exhaust port is fixedly arranged on the top of the three-way can.

[0012] Preferably, a flow rate sensor is installed on the upper air vent structure, and the flow rate sensor is connected to the counter-current mechanism and the atomizing mechanism for control.

[0013] Preferably, the airflow pipe is connected to the counter-jet nozzle via a solenoid valve;

[0014] The three-way tank body and the dividing plate are respectively fixed with vertically arranged vertical jet heads. The vertical jet heads are connected to solenoid valves to control the opening and closing of the counter-jet jet head and the vertical jet head.

[0015] Preferably, the lower air vent structure is fixedly equipped with an intercepting net to intercept excessively large particles;

[0016] A guide pipe is fixedly installed on the three-way tank. One end of the guide pipe is connected to the lower air vent structure and is located on the right side of the interception net. The other end of the guide pipe is connected to the storage tank, so that the intercepted particles flow into the storage tank through the guide pipe.

[0017] Preferably, the liquid storage container is fixedly installed on the left side of the three-way tank, and a fixing plate is fixedly installed inside the liquid storage container. The fixing plate divides the liquid storage container from top to bottom into a clear water area and a foam area, and both the clear water area and the foam area are provided with an injection port.

[0018] The clear water zone and the foam zone are respectively connected to discharge components, and both discharge components are connected to the conveying pipe.

[0019] The flow rate sensor is controlled to connect to the two discharge components.

[0020] Preferably, the interior of the three-way can body is provided with two vertically spaced chambers, and an arc-shaped rack is slidably provided in each chamber. Two first driving devices are fixedly provided on the three-way can body, and the output end of each first driving device is connected to a gear. The gear meshes with the arc-shaped rack, causing the arc-shaped rack to move along the chamber.

[0021] Each of the arc-shaped racks has an adjustment mechanism fixed at the end away from the gear. The upper spray head and the lower spray head are respectively mounted on the corresponding adjustment mechanism to adjust the upper spray head or the lower spray head.

[0022] Preferably, the adjustment mechanism includes a fixed frame, a tilting frame, and a bevel gear set;

[0023] The fixed frame is fixed on the arc-shaped rack, and the upper or lower spray head is rotatably mounted on the flipping frame. A flipping drive mechanism is provided on one side of the fixed frame, and a self-rotation drive mechanism is provided on the other side of the fixed frame. The flipping frame is connected to the flipping drive mechanism and the self-rotation drive mechanism in a transmission manner, so that the upper or lower spray head flips around the flipping drive mechanism.

[0024] The self-rotation drive mechanism is connected to the upper or lower spray head via a bevel gear set, causing the upper or lower spray head to rotate.

[0025] Preferably, the tilting drive mechanism includes a second drive unit and a transmission shaft;

[0026] The output end of the second drive device is connected to the drive shaft, and the other end of the drive shaft is rotatably connected to the fixed frame;

[0027] The tilting frame is fixedly mounted on the drive shaft on the side closest to the second drive device.

[0028] Preferably, the self-rotation drive mechanism includes a third drive device and a transmission sleeve;

[0029] The output end of the third drive device is connected to the transmission sleeve, and the other end of the transmission sleeve is rotatably mounted on the transmission shaft. The transmission sleeve is connected to the upper spray head or the lower spray head through a bevel gear set.

[0030] The tilting frame is rotatably mounted on the transmission sleeve on the side closest to the third drive device.

[0031] The beneficial effects are: 1. When the dust-laden airflow enters from the air inlet, it will be directed to the upper and lower air inlets. The dust-laden airflow entering the lower air inlet will be transmitted to the opposing jet nozzles through the airflow pipe, causing the airflow discharged from the opposing jet nozzles to collide with the dust-laden airflow entering the upper air inlet, thereby slowing down the flow rate of the dust-laden airflow. Then, the upper spray head 503 and the lower spray head will spray, which will adsorb the dust-laden airflow. Because the flow rate of the dust-laden airflow is slowed down, the atomized particles can better adsorb the dust particles in the dust-laden airflow, thereby improving the atomization effect and achieving the purpose of improving the dust treatment effect.

[0032] 2. By controlling the vertical jet head and the counter-jet jet head, the vertical jet head will not be activated when the wind speed flowing into the air inlet is low, but will be activated when the wind speed is too high. This allows the vertical jet head to spray out a counter-jet to slow down the rate at which the dust-laden airflow enters the three-way canister, thereby increasing the speed of the dust-laden airflow.

[0033] 3. The upper and lower spray heads can be adjusted in position and angle within the three-way tank. When the first drive device is activated, it can drive the arc-shaped rack 16 to move along the chamber to adjust the position of the upper and lower spray heads. When the third and fourth drive devices are activated, they can adjust the orientation of the upper or lower spray heads to achieve better atomization.

[0034] 4. By setting the flow rate sensor, the flow rate can be adjusted according to the airflow speed. This can not only drive the vertical jet head to start, but also adjust the liquid sprayed by the upper or lower spray head. When the flow rate is too fast, the liquid sprayed by the upper or lower spray head changes from clear water to foam to improve the adsorption capacity of atomized particles, thereby adsorbing more dust particles and greatly improving the atomization effect. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall three-dimensional structure in a specific embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of a partial cross-section of the three-way tank in a specific embodiment of the present invention;

[0037] Figure 3This is a schematic diagram of a liquid storage container containing clear water and foam liquid in a specific embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the connection between the vertical jet head and the counter-jet jet head and the airflow pipe in a specific embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the distribution of the airflow pipes within the three-way canister in a specific embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the transmission structure of the adjustment mechanism in a specific embodiment of the present invention;

[0041] Figure 7 This is a schematic diagram of the distribution of the adjustment mechanism within the three-way tank in a specific embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of a liquid storage container filled with clean water in a specific embodiment of the present invention;

[0043] Figure 9 This is a partial cross-sectional structural diagram of the upper spray head in a specific embodiment of the present invention.

[0044] In the diagram: 1. Three-way tank; 102. Storage tank; 2. Air inlet; 201. Upper air vent structure; 202. Lower air vent structure; 3. Exhaust outlet; 4. Counter-current mechanism; 401. Divider plate; 402. Airflow pipe; 403. Counter-current jet nozzle; 5. Atomizing mechanism; 501. Liquid storage tank; 502. Delivery pipe; 503. Upper spray head; 6. Flow rate sensor; 7. Solenoid valve; 8. Vertical jet nozzle; 9. Interception net; 10. Guide pipe; 11. 11. Fixed plate; 12. Clear water zone; 13. Foam zone; 14. Discharge assembly; 15. Chamber; 16. Arc-shaped rack; 17. First drive device; 18. Gear; 19. Adjustment mechanism; 1901. Fixed frame; 1902. Tilting frame; 1903. Bevel gear set; 20. Tilting drive mechanism; 2001. Second drive device; 2002. Transmission shaft; 21. Rotation drive mechanism; 2101. Third drive device; 2102. Transmission sleeve. Detailed Implementation

[0045] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0046] Example 1: This example aims to provide a dust control and collection device for cutting boards at a construction site. It is mainly used to collect dust airflow and perform sedimentation treatment. Although there are devices for collecting dust airflow at present, the dust airflow velocity is too fast, which causes the atomized particles to not be able to effectively adsorb the dust particles, resulting in poor sedimentation effect. In this example, when the dust airflow flows into the three-way tank 1, a part of the airflow will flow into the counter-jet nozzle through the lower air vent structure 202 to collide with the dust airflow flowing into the upper air vent structure 201, thereby slowing down the flow velocity of the dust airflow flowing into the upper air vent structure 201 and improving the atomization effect.

[0047] Based on the above issues, such as Figure 1 and Figure 2 As shown, the exhaust port 3 and storage tank 102 enable the gas after settling to be discharged and the particles after settling to be collected.

[0048] Specifically, the three-way tank 1 is provided with a horizontally arranged air inlet 2. The air inlet 2 is arranged so that when the cutting equipment is working, the air inlet 2 can be aligned with the cutting equipment to collect the dust. The three-way tank 1 is also provided with an exhaust port 3. The exhaust port 3 allows the settled gas to be discharged through the exhaust port 3. The three-way tank 1 does not form a pressure to prevent dust from entering the three-way tank 1 and turning over. The three-way tank 1 itself has a curvature so that the dust can be transferred along the edge to the storage tank 102. The bottom of the three-way tank 1 is detachably connected to the storage tank 102. The air inlet 2 is arranged horizontally on the right side of the three-way tank 1, and the exhaust port 3 is fixedly located on the top of the three-way tank 1. Since the storage tank 102 and the three-way tank 1 are connected by threads, when the storage tank 102 is full, it can be removed for replacement or cleaning.

[0049] like Figure 2 , Figure 4 and Figure 5 As shown, the dust-generating airflow enters the lower air vent structure 202, causing the dust-generating airflow that can be transmitted to the opposing jet head 403 to collide with the dust-generating airflow flowing into the upper air vent structure 201, thereby slowing down the flow velocity of the upper air vent structure 201 and improving the adsorption effect of atomized particles.

[0050] Specifically, the counter-current mechanism 4 includes a dividing plate 401, an airflow pipe 402, and a counter-current jet nozzle 403. The dividing plate 401 is fixedly installed at the air inlet 2, dividing the air inlet 2 into an upper air outlet structure 201 and a lower air outlet structure 202 spaced apart vertically. The airflow pipe 402 is laid inside the lower air outlet structure 202. The counter-current jet nozzle 403 is installed on the three-way tank 1 and corresponds to the upper air outlet structure 201 on the left and right. The airflow pipe 402 is used to connect to the counter-current jet nozzle 403. In this embodiment... In the middle, the air inlet is divided into an upper air inlet structure 201 and a lower air inlet structure 202 by a dividing plate 401. The dust-laden airflow flowing into the lower air inlet structure 202 can be transmitted to the opposing jet nozzle 403 through the airflow pipe 402, so that the airflow discharged from the opposing jet nozzle 403 collides with the dust-laden airflow flowing into the upper air inlet structure 201 to slow down the flow rate of the dust-laden airflow. Then, the dust-laden airflow is discharged through the opposing jet nozzle 403, which collides with the dust-laden airflow in the upper air inlet structure 201.

[0051] like Figure 2 As shown, the lower air vent structure 202 is fixedly equipped with an intercepting net 9 to intercept excessively large particles; a guide pipe 10 is fixedly equipped on the three-way tank 1, one end of the guide pipe 10 is connected to the lower air vent structure 202 and is located to the right of the intercepting net 9; the other end of the guide pipe 10 is connected to the storage tank 102, so that the intercepted particles flow into the storage tank 102 through the guide pipe 10. Since the dust-generating airflow passing through the lower air vent structure 202 is also accompanied by some large particles, these large particles will block the anti-collision jet head 403, causing the anti-collision jet head 403 to be unable to eject gas, thus reducing the collision effect.

[0052] like Figure 1 and Figure 2 As shown, the upper air inlet structure 201 gradually increases in size from the air inlet to the interior, thereby reducing the airflow velocity; the lower air inlet structure 202 gradually decreases in size from the air inlet to the interior, thereby increasing the airflow velocity of the dust-laden airflow entering the lower air inlet structure 202, so that it flows through the airflow pipe 402 to the opposing jet nozzle 403.

[0053] like Figure 2 and Figure 4 As shown, a flow rate sensor 6 is installed on the upper air vent structure 201. In this embodiment, the flow rate sensor 6 is a thermal wind speed sensor, model JT1401. The flow rate sensor 6 is connected to the counter-current mechanism 4 to control the opening and closing of the counter-current jet head 403 and the vertical jet head 8.

[0054] Specifically, the airflow pipe 402 is connected to the counter-jet nozzle 403 via the solenoid valve 7. In this embodiment, the solenoid valve 7 is connected to the flow rate sensor 6. Vertical nozzles 8 are fixedly installed on the three-way tank 1 and the dividing plate 401, respectively. The vertical nozzles 8 are connected to the solenoid valve 7 to control the opening and closing of the counter-jet nozzle 403 and the vertical nozzles 8.

[0055] In this embodiment, the airflow velocity is V1 > V2 > V3. When the flow velocity sensor 6 detects that the flow velocity of the dust-generating airflow is V3, the vertical jet head 8 is opened by the solenoid valve 7, which obstructs the airflow flowing into the upper air vent structure 201 and slows down the airflow velocity. When the flow velocity sensor 6 detects that the flow velocity is V2, the vertical jet head 8 is closed by the solenoid valve 7, and the opposing jet head 403 is opened, so that it collides with the airflow flowing into the upper air vent structure 201, which improves the effect of slowing down the airflow velocity. If the flow velocity sensor 6 detects that the flow velocity is V1, the solenoid valve 7 controls both the opposing jet head 403 and the vertical jet head 8 to open, so that the opposing jet head 403 and the vertical jet head 8 cooperate to slow down the airflow velocity flowing into the upper air vent structure 201, so as to achieve the purpose of reducing the flow velocity and better settling.

[0056] like Figure 1 and Figure 8 As shown, the atomizing mechanism 5 can atomize and settle the dust-laden airflow inside the three-way tank 1.

[0057] Specifically, the atomizing mechanism 5 includes a liquid storage tank 501, a conveying pipe 502, an upper spray head 503, and a lower spray head. The upper spray head 503 is mounted on the three-way tank 1, and the lower spray head is mounted on the dividing plate 401. The spray direction of the upper spray head 503 is aimed at the area where the dust-generating airflow passes through the upper vent structure 201, and the spray direction of the lower spray head is aimed at the collision area formed by the jet nozzle 403 and the upper vent structure 201. Since the upper spray head 503 and the lower spray head have different orientations, the airflow can be atomized during the process of being delivered. The upper spray head 503 can atomize the collision area again, improving the atomization effect and achieving the effect of atomization sedimentation. The liquid storage tank 501 is connected to the upper spray head 503 and the lower spray head through the conveying pipe 502, so that the upper spray head 503 and the lower spray head can spray out the liquid in the liquid storage tank 501. The liquid storage tank 501 is provided with a clean water area 12.

[0058] The clear water zone 12 is provided with an inlet; the clear water zone 12 is connected to a discharge assembly 14. In this embodiment, the discharge assembly 14 consists of a water outlet pipe and a water pump. The water pump can pump out water. The discharge assembly 14 is connected to the conveying pipe 502; the flow rate sensor 6 is connected to the two discharge assemblies 14 for control. The flow rate sensor 6 controls the discharge assembly 14 to start, so that the clear water in the liquid storage tank 501 can be pumped to the upper spray head 503 and the lower spray head.

[0059] In Example 2, in the structure of Example 1, when the airflow into the upper air vent structure 201 is too large, the adsorption capacity of the clean water is weak, resulting in poor adsorption of dust particles. This causes the dust particles to rotate in the three-way tank 1, and if they are squeezed too much, they will be discharged by the exhaust port 3, resulting in poor settling effect.

[0060] Based on the above problems, this implementation example Figure 3 As shown, a flow rate sensor 6 is installed on the upper air vent structure 201, and the flow rate sensor 6 is connected to the counter-flow mechanism 4 and the atomizing mechanism 5 for control.

[0061] Specifically, a liquid storage container 501 is fixedly installed on the left side of the three-way tank 1. A fixing plate 11 is fixedly installed inside the liquid storage container 501, which divides the liquid storage container 501 from top to bottom into a clear water zone 12 and a foam zone 13. The fixing plate 11 is set to store the clear water zone 12 and the foam zone 13 separately for convenient use at different stages. Both the clear water zone 12 and the foam zone 13 are provided with injection ports. The clear water zone 12 and the foam zone 13 are respectively connected to a discharge assembly 14. In this embodiment, the discharge assembly 14 consists of a water outlet pipe and a water pump. The water pump can extract water. Both discharge assemblies 14 are connected to the conveying pipe 502. The flow rate sensor 6 is connected to the two discharge assemblies 14 for control.

[0062] In this embodiment, the airflow velocity of the upper vent structure 201 is V1 > V2 > V3. When the flow velocity sensor 6 detects that the flow velocity of the dust-generating airflow is V3, the water pump on the clean water zone 12 pumps clean water to the upper spray head 503 and the lower spray head, so that the clean water is sprayed out to adsorb and settle the dust particles. When the flow velocity sensor 6 detects that the flow velocity is V2, the water pump on the clean water zone 12 is closed by the solenoid valve 7, and the water pump on the foam zone 13 is opened, so that the water pump on the foam zone 13 pumps foam to the upper spray head 503 and the lower spray head, increasing the adsorption capacity of the atomized particles and thus improving the atomization and settling effect. If the flow velocity sensor 6 detects that the flow velocity is V1, both the water pump on the clean water zone 12 and the water pump on the foam zone 13 are started, so that the clean water and foam are mixed and pumped to the upper spray head 503 and the lower spray head to adsorb the dust particles and achieve better settling.

[0063] Compared to Embodiment 1, the advantage of this embodiment is that when the flow speed of the dust-generating airflow in the upper air vent structure 201 is different, it can achieve the spraying of atomized particles with different adsorption capacities, thereby improving the atomization effect.

[0064] In Example 3, the upper spray head 503 and the lower spray head cannot be adjusted in the structures of Example 1 and Example 2, which makes it impossible to adjust the spray position, orientation and range of the upper spray head 503 and the lower spray head according to the needs, resulting in poor atomization effect.

[0065] Based on the above problems, this implementation example Figure 6 and Figure 7 As shown, the three-way tank 1 has two vertically spaced chambers 15 inside. A sliding limiting groove is formed on the inner bottom wall of the three-way tank 1, communicating with the chamber 15. The adjusting mechanism 19 moves along the sliding limiting groove. An arc-shaped rack 16 is slidably installed in each chamber 15, extending along the direction of the chamber 15. Two first driving devices 17 are fixedly installed on the three-way tank 1. In this embodiment, the first driving device 17 is a first self-locking motor. A gear 18 is connected to the output end of each first driving device 17. The gear 18 and the arc-shaped rack 16... The shaped racks 16 mesh with each other, causing the arc-shaped racks 16 to move along the chamber 15. Each arc-shaped rack 16 has an adjustment mechanism 19 fixed at the end away from the gear 18. When the arc-shaped rack 16 moves, it can drive the adjustment mechanism 19 to move. The upper spray head 503 and the lower spray head are respectively set on the corresponding adjustment mechanism 19, so that the upper spray head 503 or the lower spray head can be adjusted, driving the first drive device 17 to start, so that the gear 18 can be driven to rotate. Since the gear 18 meshes with the arc-shaped rack 16, it can drive the arc-shaped rack 16 to slide along the chamber 15.

[0066] The adjustment mechanism 19 includes a fixed frame 1901, a tilting frame 1902, and a bevel gear set 1903. The fixed frame 1901 is fixedly mounted on the arc-shaped rack 16. The upper spray head 503 or the lower spray head is rotatably mounted on the tilting frame 1902. A tilting drive mechanism 20 is provided on one side of the fixed frame 1901. After the tilting drive mechanism 20 is activated, it can drive the tilting frame 1902 to rotate, thereby causing the upper spray head 503 or the lower spray head to tilt, so as to adjust the swing angle of the upper spray head 503 or the lower spray head. A self-rotation drive mechanism is provided on the other side of the fixed frame 1901. 21. The tilting frame 1902 is connected to the tilting drive mechanism 20 and the self-rotation drive mechanism 21, so that the upper spray head 503 or the lower spray head can be tilted around the tilting drive mechanism 20. The self-rotation drive mechanism 21 is connected to the upper spray head 503 or the lower spray head through the bevel gear set 1903, so that the upper spray head 503 or the lower spray head can rotate. After the self-rotation drive mechanism 21 is started, it can drive the bevel gear set 1903 to rotate, so that the bevel gear set 1903 drives the upper spray head 503 or the lower spray head to rotate, so as to adjust the spraying position of the upper spray head 503 or the lower spray head.

[0067] In this embodiment, as Figure 9 As shown, the upper spray head 503 or the lower spray head is a spray head with an adjustable spray range. Moreover, the upper spray head 503 or the lower spray head is elongated. When the upper spray head 503 or the lower spray head rotates, the spray range can be adjusted.

[0068] The flipping drive mechanism 20 includes a second drive device 2001 and a transmission shaft 2002. In this embodiment, the second drive device 2001 is a second drive self-locking motor. The output end of the second drive device 2001 is connected to the transmission shaft 2002, and the other end of the transmission shaft 2002 is rotatably connected to the fixed frame 1901. The flipping frame 1902 is fixedly mounted on the transmission shaft 2002 on the side close to the second drive device 2001. When the second drive device 2001 rotates, it can drive the transmission shaft 2002 to rotate, thereby causing the flipping frame 1902 to flip.

[0069] The self-rotating drive mechanism 21 includes a third drive device 2101 and a transmission sleeve 2102. The third drive device 2101 is a third drive self-locking motor. The output end of the third drive device 2101 is connected to the transmission sleeve 2102. The other end of the transmission sleeve 2102 is rotatably mounted on the transmission shaft 2002. The transmission sleeve 2102 is connected to the upper spray head 503 or the lower spray head through the bevel gear set 1903. The tilting frame 1902 is rotatably mounted on the transmission sleeve 2102 on the side close to the third drive device 2101, driving the third drive device 2101 to start, so that the output end of the third drive device 2101 can drive the transmission sleeve 2102 to rotate, so that the upper spray head 503 or the lower spray head can rotate through the bevel gear set 1903.

[0070] The bevel gear set 1903 includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly sleeved on the transmission sleeve 2102, while the second bevel gear is fixedly sleeved on the upper spray head 503 or the lower spray head. Since the first bevel gear and the second bevel gear mesh with each other, they can drive the upper spray head 503 or the lower spray head to rotate.

[0071] Compared to Embodiments 1 and 2, the advantage of this embodiment is that the position, orientation, and range of the upper spray head 503 or the lower spray head can be adjusted according to needs, making it suitable for different degrees of atomized spraying and greatly improving the settling effect.

[0072] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The basic concept of the present invention is to adjust the mitigation effect and spraying effect of the three-way tank 1 according to the different flow velocities of the dust-generating airflow, so as to better settle the collected dust particles. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A dust control and collection device for cutting sheet metal at a construction site, characterized in that, It includes a three-way canister (1), a flushing mechanism (4), and an atomizing mechanism (5); The three-way tank (1) is provided with a horizontally arranged air inlet (2) and an exhaust port (3). The anti-collision mechanism (4) includes a dividing plate (401), an airflow pipe (402), and an anti-collision jet head (403). The dividing plate (401) is fixedly installed at the air inlet (2) and divides the air inlet (2) into an upper air outlet structure (201) and a lower air outlet structure (202) that are spaced apart. The airflow pipe (402) is laid inside the lower air outlet structure (202). The anti-collision jet head (403) is installed on the three-way tank (1) and corresponds to the upper air outlet structure (201) on the left and right. The airflow pipe (402) is used to connect with the anti-collision jet head (403) so that the airflow discharged from the anti-collision jet head (403) collides with the dust-generating airflow flowing into the upper air outlet structure (201) to slow down the flow rate of the dust-generating airflow. The upper air inlet structure (201) gradually increases in size from the air inlet to the interior, thereby reducing the airflow velocity; the lower air inlet structure (202) gradually decreases in size from the air inlet to the interior, thereby increasing the airflow velocity of the dust-generating airflow entering the lower air inlet structure (202) so that it can flow through the airflow pipe (402) to the opposing jet nozzle (403). The atomizing mechanism (5) includes a liquid storage tank (501), a delivery pipe (502), an upper spray head (503), and a lower spray head. The upper spray head (503) is mounted on a three-way tank (1), and the lower spray head is mounted on a dividing plate (401). The spray direction of the upper spray head (503) is directed towards the area where the dust-generating airflow passes through the upper vent structure (201), and the spray direction of the lower spray head is directed towards the collision area formed by the jet nozzle (403) and the upper vent structure (201). The liquid storage tank (501) is connected to the upper spray head (503) and the lower spray head through the delivery pipe (502), so that the upper spray head (503) and the lower spray head spray out the liquid in the liquid storage tank (501).

2. The dust control and collection device for board cutting at construction sites according to claim 1, characterized in that, The bottom of the three-way tank (1) is detachably connected to the storage tank (102), the air inlet (2) is horizontally arranged on the right side of the three-way tank (1), and the exhaust port (3) is fixedly arranged on the top of the three-way tank (1).

3. The dust control and collection device for board cutting at construction sites according to claim 1, characterized in that, A flow rate sensor (6) is installed on the upper air vent structure (201), and the flow rate sensor (6) is connected to the counter-current mechanism (4) and the atomizing mechanism (5) respectively.

4. The dust control and collection device for board cutting at construction sites according to claim 1, characterized in that, The airflow pipe (402) is connected to the counter-jet head (403) via a solenoid valve (7); Vertical jet heads (8) are fixedly installed on the three-way tank (1) and the dividing plate (401). The vertical jet heads (8) are connected to the solenoid valve (7) to control the opening and closing of the counter-jet jet head (403) and the vertical jet head (8).

5. A dust control and collection device for sheet metal cutting at a construction site according to claim 2, characterized in that, The lower air vent structure (202) is fixedly equipped with an interception net (9) to intercept excessively large particles; The three-way tank (1) is fixedly provided with a guide pipe (10). One end of the guide pipe (10) is connected to the lower air vent structure (202) and is located on the right side of the interception net (9). The other end of the guide pipe (10) is connected to the storage tank (102) so that the intercepted particles flow into the storage tank (102) through the guide pipe (10).

6. A dust control and collection device for board cutting at a construction site according to claim 3, characterized in that, The liquid storage container (501) is fixedly installed on the left side of the three-way tank (1). A fixing plate (11) is fixedly installed inside the liquid storage container (501). The fixing plate (11) divides the liquid storage container (501) from top to bottom into a clear water area (12) and a foam area (13). Both the clear water area (12) and the foam area (13) are provided with injection ports. The clear water zone (12) and the foam zone (13) are respectively connected to discharge components (14), and both discharge components (14) are connected to the conveying pipe (502); The flow rate sensor (6) is controlled to be connected to the two discharge components (14).

7. A dust control and collection device for board cutting at a construction site according to claim 1, characterized in that, The three-way tank (1) has two vertically spaced chambers (15) inside. Each chamber (15) has a sliding arc-shaped rack (16). The three-way tank (1) is fixedly equipped with two first driving devices (17). The output end of each first driving device (17) is connected to a gear (18). The gear (18) meshes with the arc-shaped rack (16) to move the arc-shaped rack (16) along the chamber (15). Each of the arc-shaped racks (16) is fixedly provided with an adjustment mechanism (19) at the end away from the gear (18). The upper spray head (503) and the lower spray head are respectively provided on the corresponding adjustment mechanism (19) to adjust the upper spray head (503) or the lower spray head.

8. A dust control and collection device for board cutting at a construction site according to claim 7, characterized in that, The adjustment mechanism (19) includes a fixed frame (1901), a tilting frame (1902), and a bevel gear set (1903). The fixed frame (1901) is fixedly mounted on the arc-shaped rack (16), and the upper spray head (503) or lower spray head is rotatably mounted on the flipping frame (1902). A flipping drive mechanism (20) is provided on one side of the fixed frame (1901), and a self-rotation drive mechanism (21) is provided on the other side of the fixed frame (1901). The flipping frame (1902) is connected to the flipping drive mechanism (20) and the self-rotation drive mechanism (21) so that the upper spray head (503) or lower spray head flips around the flipping drive mechanism (20). The self-rotation drive mechanism (21) is connected to the upper spray head (503) or the lower spray head via a bevel gear set (1903), so that the upper spray head (503) or the lower spray head rotates.

9. A dust control and collection device for cutting sheet metal at a construction site according to claim 8, characterized in that, The flipping drive mechanism (20) includes a second drive unit (2001) and a transmission shaft (2002). The output end of the second drive device (2001) is connected to the drive shaft (2002), and the other end of the drive shaft (2002) is rotatably connected to the fixed frame (1901); The tilting frame (1902) is fixedly mounted on the drive shaft (2002) on the side near the second drive unit (2001).

10. A dust control and collection device for board cutting at a construction site according to claim 9, characterized in that, The self-rotation drive mechanism (21) includes a third drive device (2101) and a transmission sleeve (2102). The output end of the third drive device (2101) is connected to the transmission sleeve (2102) for transmission. The other end of the transmission sleeve (2102) is rotatably mounted on the transmission shaft (2002). The transmission sleeve (2102) is connected to the upper spray head (503) or the lower spray head through the bevel gear set (1903). The tilting frame (1902) is rotatably mounted on the transmission sleeve (2102) on the side closest to the third drive device (2101).

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