A multi-direction dust falling device for open cut tunnel construction

Abstract

The application relates to the technical field of dust falling devices, and discloses a multi-direction dust falling device for open tunnel construction, which comprises a moving table, a rotating rod is rotationally connected to the inner wall of the moving table, a gear one is fixedly connected to the circumferential surface of the rotating rod, a rotating shaft is rotationally connected to the inner wall of the moving table, a gear two is fixedly connected to the circumferential surface of the rotating shaft, a rotating frame is fixedly connected to the circumferential surface of the rotating shaft, and a round rod is rotationally connected to the inner wall of the rotating frame. When the spraying distance of water mist needs to be adjusted, the elevation angle of the cannon barrel can be adjusted, the spraying distance of the water mist can be changed through the amplitude of the elevation angle, the water mist can precisely act on a dust generation or diffusion area, the problems that the water mist cannot be sprayed at a long distance and the water mist is excessively sprayed at a short distance can be avoided, the dust capturing efficiency is greatly improved, diversified dust falling requirements can be met without moving equipment, and the equipment deployment cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of dust suppression device technology, specifically a multi-directional dust suppression device for open-cut tunnel construction. Background Technology

[0002] The drilling, blasting, excavated soil transportation, and shotcreting processes in tunnel construction generate a large amount of diffuse dust. On the one hand, this dust seriously threatens the health of construction workers, and long-term inhalation can easily lead to respiratory diseases such as pneumoconiosis. On the other hand, dust reduces visibility inside the tunnel, interferes with the operating vision of equipment such as excavators and transport vehicles, and greatly increases the safety risks of collisions and misoperation.

[0003] The patent with publication number CN220599853U relates to a dust suppression device for tunnel construction, which belongs to the field of tunnel construction technology. A dust suppression device for tunnel construction includes a mobile trolley and a dust suppression mechanism. The mobile trolley has wheels. The dust suppression mechanism is equipped with the mobile trolley and includes a water tank and a dust suppression component. The water tank provides water to the dust suppression component, which sprays water mist. A height adjustment component is installed between the mobile trolley and the dust suppression component to adjust the height of the component. The height adjustment component includes a lifting frame, a support base, and a drive component. The lifting frame is vertically mounted on the mobile trolley and has a guide section. The support base slides vertically on the lifting frame, and the dust suppression component is mounted on the support base. The drive component drives the support base to move vertically on the lifting frame. This dust suppression device for tunnel construction can suppress dust in all directions according to the dust concentration in the tunnel, resulting in good dust suppression. However, it is difficult to adjust the spray angle of the nozzle during use, making it difficult to effectively target areas with high dust concentrations. Therefore, a multi-directional dust suppression device for open-cut tunnel construction is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-directional dust suppression device for open-cut tunnel construction, which addresses the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a multi-directional dust suppression device for open-cut tunnel construction, comprising a movable platform, a rotating rod rotatably connected to the inner wall of the movable platform, a gear one fixedly connected to the circumferential surface of the rotating rod, a rotating shaft rotatably connected to the inner wall of the movable platform, a gear two fixedly connected to the circumferential surface of the rotating shaft, a rotating frame fixedly connected to the circumferential surface of the rotating shaft, a round rod rotatably connected to the inner wall of the rotating frame, a barrel fixedly connected to the circumferential surface of the round rod, a long plate fixedly connected to the top of the rotating shaft, and a threaded rod rotatably connected to the inner wall of the long plate. A movable block is threadedly connected to the circumferential surface. A connecting plate is rotatably connected to the inner wall of the movable block. A guide mechanism for increasing the spraying range is provided at the top of the long plate. An anti-clogging mechanism for preventing the dust suppression effect from deteriorating is provided on the inner wall of the cannon. A water spraying rod is fixedly connected to the inner wall of the movable platform. When the angle needs to be adjusted for water spraying dust suppression, the spraying angle of the water mist can be freely adjusted to expand the dust suppression coverage area, eliminate dust suppression dead angles in open areas and multiple dust-generating points in open-cut tunnels, form a three-dimensional coverage, and accurately target the dust-generating source, improve the contact efficiency between water mist and dust, and reduce the risk of dust diffusion.

[0006] Preferably, a motor is provided at the bottom of the rotating rod, and the rotating rod is driven to rotate by the motor. The circumferential surface of the second gear meshes with the circumferential surface of the first gear. A motor is provided on the left side of the threaded rod, and the threaded rod is driven to rotate by the motor. The second gear is used to slow down the rotational speed of the shaft.

[0007] Preferably, the bottom of the movable block is slidably connected to the inner wall of the long plate, the circumferential surface of the cannon is rotatably connected to the inner wall of the connecting plate, and the bottom of the long plate is rotatably connected to the inner wall of the rotating frame. When it is necessary to adjust the spraying distance of the water mist, the elevation angle of the cannon can be adjusted so that the spraying distance of the water mist can be changed by the amplitude of the elevation angle. This allows the water mist to be accurately applied to the dust generation or diffusion area, avoiding the problems of not being able to spray at a long distance or spraying too much at a short distance, thereby greatly improving the dust capture efficiency. At the same time, it can meet diverse dust suppression needs without the need for mobile equipment, reducing equipment deployment costs.

[0008] Preferably, the guiding mechanism includes a fixed plate, which is fixedly connected to the circumferential surface of the barrel. A movable rod is slidably connected to the inner wall of the fixed plate, and a short rod is rotatably connected to the inner wall of the barrel. A U-shaped frame is fixedly connected to the circumferential surface of the short rod, with the right side of the U-shaped frame in contact with the left side of the movable rod. A guide plate is fixedly connected to the circumferential surface of the U-shaped frame, and a limit plate is fixedly connected to the circumferential surface of the rod. An elastic telescopic rod is fixedly connected to the front of the rotating frame. In the process of increasing the spray angle of the barrel, half of the directly ejected water mist can be diverted downwards, so that the water mist forms a directional downward spray path, reducing lateral dispersion, allowing the water mist to concentrate and cover the target area on the ground, and accurately suppressing ground dust, thereby improving near-ground dust suppression efficiency.

[0009] Preferably, a protrusion is fixedly connected to the front of the elastic telescopic rod, and the surface of the protrusion contacts the inner wall of the limiting plate. An elastic telescopic plate is fixedly connected to the circumferential surface of the moving rod, and the inner wall of the long plate contacts the bottom of the elastic telescopic plate. During the elevation angle adjustment, the sound generated by the protrusion resetting and colliding with the limiting plate provides feedback to the operator, assisting the operator in quickly locating the commonly used dust suppression angle without repeated calibration, improving the angle adjustment efficiency, and preventing the difficulty in accurately judging whether the barrel is close to the limiting position by vision in the dim environment of the tunnel.

[0010] Preferably, the anti-clogging mechanism includes an elastic rod, which is fixedly connected to the left side of the barrel by a spring. An L-shaped plate is slidably connected to the inner wall of the elastic rod, and a semi-circular block is fixedly connected to the right side of the L-shaped plate. A convex ring is fixedly connected to the circumferential surface of the short rod, and the surface of the convex ring is in contact with the right side of the semi-circular block. A scraper ring is fixedly connected to the right side of the L-shaped plate, and the circumferential surface of the scraper ring is in contact with the surface of the water spray bar. A fixing frame is fixedly connected to the inner wall of the barrel, and a connecting rod is rotatably connected to the inner wall of the fixing frame. During the angle adjustment process, sand and gravel particles attached to the nozzle of the water spray bar can be brushed off, preventing impurities from adhering to the water spray bar and affecting the normal flow of water when the device is stationary for a long time. This improves the spraying effect of the water mist and further enhances the dust suppression effect of the device.

[0011] Preferably, a baffle is fixedly connected to the circumferential surface of the connecting rod, and a fixing block is fixedly connected to the circumferential surface of the connecting rod. A U-shaped rod is rotatably connected to the inner wall of the fixing block. The baffle is used to adjust the airflow direction. When the sprayed water flow is unstable, the baffle angle is adjusted to accurately guide the airflow direction, enhance the contact efficiency between water mist and dust, and allow the airflow to drive the water mist to form a directional jet flow, preventing the water mist from scattering. This allows the water mist and dust particles to fully collide and agglomerate, optimizes the compatibility between airflow and water mist, improves the dust suppression targeting, and enhances the adaptability of the device to different operating conditions.

[0012] The present invention, by adopting the above technical solution, can bring the following beneficial effects:

[0013] 1. This multi-directional dust suppression device for open-cut tunnel construction utilizes the coordinated operation of a moving platform, rotating rod, gear one, rotating shaft, gear two, rotating frame, round rod, barrel, long plate, threaded rod, moving block, connecting plate, and water spraying rod. When the angle needs adjustment for water spraying dust suppression, the device can freely adjust the spray angle of the water mist, expanding the dust suppression coverage area, eliminating dust suppression dead zones in open areas and multiple dust-generating points in open-cut tunnels, forming a three-dimensional coverage, and accurately targeting dust sources. This improves the contact efficiency between water mist and dust, reducing the risk of dust diffusion. When adjusting the spray distance of the water mist, the elevation angle of the barrel can be adjusted, allowing the spray distance to be changed by varying the elevation angle. This ensures the water mist accurately targets dust-generating or diffusing areas, avoiding problems of insufficient spray at long distances or excessive spray at close distances, thus significantly improving dust capture efficiency. Furthermore, it meets diverse dust suppression needs without requiring mobile equipment, reducing equipment deployment costs.

[0014] 2. This multi-directional dust suppression device for open-cut tunnel construction, through the coordinated operation of a fixed plate, a movable rod, a short rod, a U-shaped frame, and a guide plate, can divert half of the directly ejected water mist downwards while increasing the spray angle of the nozzle, so that the water mist forms a directional downward spray path, reducing lateral dispersion, allowing the water mist to concentrate and cover the target area on the ground, and accurately suppressing ground dust, thereby improving near-ground dust suppression efficiency.

[0015] 3. This multi-directional dust suppression device for open-cut tunnel construction, through the coordinated operation of the limiting plate, elastic telescopic rod, protrusion, and elastic telescopic plate, provides feedback to the workers during the process of adjusting the elevation angle. The sound generated by the collision between the protrusion and the limiting plate during the resetting of the protrusion provides feedback to the workers, helping them to quickly locate the commonly used dust suppression angle without repeated calibration, thus improving the efficiency of angle adjustment and preventing the difficulty in accurately judging whether the blasting barrel is close to the limiting position by vision in the dim environment of the tunnel.

[0016] 4. This multi-directional dust suppression device for open-cut tunnel construction, through the coordinated operation of elastic rods, L-shaped plates, semi-circular blocks, convex rings, and scraper rings, can brush off sand and gravel particles adhering to the nozzles of water spray rods during the angle adjustment process. This prevents impurities from adhering to the water spray rods and affecting the normal flow of water when the device is stationary for a long time, thereby improving the spraying effect of water mist and further enhancing the dust suppression effect of the device.

[0017] 5. This multi-directional dust suppression device for open-cut tunnel construction, through the coordinated operation of the fixed frame, connecting rod, baffle, fixed block, and U-shaped rod, can precisely guide the airflow direction by adjusting the angle of the baffle when the sprayed water flow is unstable, thereby enhancing the contact efficiency between water mist and dust. At the same time, the airflow drives the water mist to form a directional jet flow, preventing the water mist from dispersing, allowing the water mist and dust particles to fully collide and agglomerate, and optimizing the compatibility between airflow and water mist, improving the targeting of dust suppression, and enhancing the adaptability of the device to different working conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a half-sectional view of the mobile platform structure of the present invention;

[0020] Figure 3 This is a half-sectional view of the guiding mechanism of the present invention;

[0021] Figure 4 This is a half-sectional view of the barrel structure of the present invention;

[0022] Figure 5 For the present invention Figure 4 Half-section view of the structure at point A in the middle;

[0023] Figure 6 For the present invention Figure 4 Half-section view of the structure at point B in the middle;

[0024] Figure 7 This is a schematic diagram of the fixing frame structure of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point C.

[0026] In the diagram: 1. Moving platform; 2. Rotating rod; 3. Gear 1; 4. Rotating shaft; 5. Gear 2; 6. Rotating frame; 7. Round rod; 8. Cannon barrel; 9. Long plate; 10. Threaded rod; 11. Moving block; 12. Connecting plate; 13. Guide mechanism; 131. Fixed plate; 132. Moving rod; 133. Short rod; 134. U-shaped frame; 135. Guide plate; 136. Limiting plate; 137. Elastic telescopic rod; 138. Protrusion; 139. Elastic telescopic plate; 14. Anti-clogging mechanism; 141. Elastic rod; 142. L-shaped plate; 143. Semicircular block; 144. Protruding ring; 145. Scraper ring; 146. Fixed frame; 147. Connecting rod; 148. Spoiler; 149. Fixed block; 1410. U-shaped rod; 15. Water spray rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8 One embodiment of the present invention is as follows: a multi-directional dust suppression device for open-cut tunnel construction, comprising a mobile platform 1, a rotating rod 2 rotatably connected to the inner wall of the mobile platform 1, a gear 3 fixedly connected to the circumferential surface of the rotating rod 2, a rotating shaft 4 rotatably connected to the inner wall of the mobile platform 1, a gear 5 fixedly connected to the circumferential surface of the rotating shaft 4, a rotating frame 6 fixedly connected to the circumferential surface of the rotating shaft 4, a round rod 7 rotatably connected to the inner wall of the rotating frame 6, a barrel 8 fixedly connected to the circumferential surface of the round rod 7, a long plate 9 fixedly connected to the top of the rotating shaft 4, a threaded rod 10 rotatably connected to the inner wall of the long plate 9, a moving block 11 threadedly connected to the circumferential surface of the threaded rod 10, a connecting plate 12 rotatably connected to the inner wall of the moving block 11, a guide mechanism 13 for increasing the spraying range provided at the top of the long plate 9, an anti-clogging mechanism 14 for preventing the dust suppression effect from deteriorating provided on the inner wall of the barrel 8, and a water spraying rod 15 fixedly connected to the inner wall of the mobile platform 1.

[0029] When the angle needs to be adjusted for water spraying to suppress dust, the motor starts and drives the rotating rod 2 to rotate. The rotation of the rotating rod 2 drives the gear 3 to rotate, which in turn drives the gear 5 to rotate through its teeth. The rotation of the gear 5 drives the rotating shaft 4 to rotate. During the rotation of the rotating shaft 4, the rotation speed is reduced by the gear 5, so that the barrel 8 can maintain stability during rotation. The rotation of the rotating shaft 4 drives the rotating frame 6 to rotate, which in turn drives the round rod 7 to rotate. The rotation of the round rod 7 drives the barrel 8 to rotate. During the rotation of the barrel 8, water mist can be sprayed, and the water mist can adsorb dust particles in the air. At the same time, the spray angle of the water mist can be freely adjusted to expand the dust suppression coverage area, eliminate dust suppression dead spots in open areas and multiple dust-generating points in open-cut tunnels, form a three-dimensional coverage, and accurately target the dust-generating source, improve the contact efficiency between water mist and dust, and reduce the risk of dust diffusion.

[0030] A motor is installed at the bottom of the rotating rod 2, and the rotating rod 2 is driven to rotate by the motor. The circumferential surface of the second gear 5 meshes with the circumferential surface of the first gear 3. A motor is installed on the left side of the threaded rod 10, and the threaded rod 10 is driven to rotate by the motor. The second gear 5 is used to slow down the rotation speed of the rotating shaft 4. The bottom of the moving block 11 is slidably connected to the inner wall of the long plate 9. The circumferential surface of the barrel 8 is rotatably connected to the inner wall of the connecting plate 12. The bottom of the long plate 9 is rotatably connected to the inner wall of the rotating frame 6.

[0031] When the spraying distance of the water mist needs to be adjusted, the motor starts and drives the threaded rod 10 to rotate. The rotation of the threaded rod 10 drives the moving block 11 to move to the left through the threaded groove on its surface. The leftward movement of the moving block 11 pulls the connecting plate 12 to move synchronously. The movement of the connecting plate 12 pulls the cannon barrel 8 to rotate clockwise, thereby adjusting the elevation angle of the cannon barrel 8. This allows the spraying distance of the water mist to be changed by adjusting the elevation angle, enabling the water mist to accurately target the dust generation or diffusion area. This avoids the problems of not being able to spray at a long distance or spraying too much at a short distance, thus greatly improving the dust capture efficiency. At the same time, it can meet diverse dust suppression needs without the need for moving equipment, reducing equipment deployment costs.

[0032] Working principle: When the angle needs to be adjusted for water spraying to suppress dust, the motor starts and drives the rotating rod 2 to rotate. The rotation of the rotating rod 2 drives the gear 3 to rotate, which in turn drives the gear 5 to rotate through its teeth. The rotation of the round rod 7 drives the barrel 8 to rotate. During the rotation of the barrel 8, water mist can be sprayed, which can adsorb dust particles in the air. At the same time, the spray angle of the water mist can be freely adjusted to expand the dust suppression coverage area and eliminate dust suppression dead zones in open areas and multiple dust-generating points in open-cut tunnels. When it is necessary to adjust the spray distance of the water mist, the motor starts and drives the threaded rod 10 to rotate. The rotation of the threaded rod 10 drives the moving block 11 to move to the left through the threaded groove on its surface. This allows the spray distance of the water mist to be changed by the elevation angle, so that the water mist can be accurately applied to the dust generation or diffusion area, avoiding the problems of not being able to spray at a long distance or spraying too much at a short distance. This greatly improves the dust capture efficiency, and at the same time, it can meet diverse dust suppression needs without the need for moving equipment, reducing equipment deployment costs.

[0033] Please see Figures 1-8 Based on the above embodiments, in another embodiment of the present invention, the guide mechanism 13 includes a fixed plate 131, the fixed plate 131 is fixedly connected to the circumferential surface of the barrel 8, the inner wall of the fixed plate 131 is slidably connected to a moving rod 132, the inner wall of the barrel 8 is rotatably connected to a short rod 133, the circumferential surface of the short rod 133 is fixedly connected to a U-shaped frame 134, the right side of the U-shaped frame 134 is in contact with the left side of the moving rod 132, the circumferential surface of the U-shaped frame 134 is fixedly connected to a guide plate 135, the circumferential surface of the round rod 7 is fixedly connected to a limit plate 136, and the front part of the rotating frame 6 is fixedly connected to an elastic telescopic rod 137.

[0034] During the process of raising the spray angle of the cannon 8, the moving block 11 moves to the left and comes into contact with the elastic telescopic plate 139, which in turn pushes the elastic telescopic plate 139 to move to the left. The leftward movement of the elastic telescopic plate 139 causes the moving rod 132 to move to the left. The leftward movement of the moving rod 132 causes the U-shaped frame 134 to rotate. The rotation of the U-shaped frame 134 causes the short rod 133 to rotate. The rotation of the short rod 133 causes the guide plate 135 to rotate. When the cannon 8 is raised, the guide plate 135 will be in a horizontal state. At this time, it will not affect the long-distance spraying of water mist. When spraying at close range, after the moving block 11 and the elastic telescopic plate 139 are no longer in contact, the guide plate 135 will swing downward by gravity, which can divert half of the directly sprayed water mist downward, so that the water mist forms a directional downward spray path, reducing lateral dispersion, allowing the water mist to concentrate and cover the ground target area, and accurately suppressing ground dust, thus improving the near-ground dust suppression efficiency.

[0035] A protrusion 138 is fixedly connected to the front of the elastic telescopic rod 137. The surface of the protrusion 138 is in contact with the inner wall of the limiting plate 136. An elastic telescopic plate 139 is fixedly connected to the circumferential surface of the moving rod 132. The inner wall of the long plate 9 is in contact with the bottom of the elastic telescopic plate 139.

[0036] During the elevation angle adjustment process, the rotation of the round rod 7 will drive the limit plate 136 to rotate. During the rotation of the limit plate 136, it will squeeze the protrusion 138 through its own inclined groove, thereby forcing the protrusion 138 to move backward. The backward movement of the protrusion 138 will compress the elastic telescopic rod 137. When the inclined groove and the protrusion 138 correspond to each other, the protrusion 138 will reset through the elasticity of the elastic telescopic rod 137, thereby generating resistance during the rotation. The sound generated by the collision between the resetting protrusion 138 and the limit plate 136 provides feedback to the staff, helping the operator to quickly locate the commonly used dust suppression angle without repeated calibration, improving the angle adjustment efficiency, and preventing the difficulty in accurately judging whether the barrel 8 is close to the limit position by vision in the dim environment of the tunnel.

[0037] Working principle: During the process of increasing the spray angle of the cannon barrel 8, the moving block 11 moves to the left and comes into contact with the elastic telescopic plate 139, which in turn pushes the elastic telescopic plate 139 to the left. The leftward movement of the elastic telescopic plate 139 drives the moving rod 132 to the left, which in turn pushes the U-shaped frame 134 to rotate. After the moving block 11 and the elastic telescopic plate 139 are no longer in contact, the guide plate 135 swings downward under gravity, thereby diverting half of the directly sprayed water mist downward, making the water mist form a directional downward spray path, reducing lateral dispersion, and concentrating the water mist. It covers the target area on the ground and accurately suppresses ground dust, improving near-ground dust suppression efficiency. During the elevation angle adjustment, the rotation of the round rod 7 will drive the limit plate 136 to rotate. During the rotation of the limit plate 136, it will squeeze the protrusion 138 through its own inclined groove. The sound generated by the collision between the protrusion 138 and the limit plate 136 provides feedback to the staff, helping the operator to quickly locate the commonly used dust suppression angle without repeated calibration, improving the angle adjustment efficiency, and preventing the difficulty in accurately judging whether the cannon 8 is close to the limit position by vision in the dim environment of the tunnel.

[0038] The anti-clogging mechanism 14 includes an elastic rod 141, which is fixedly connected to the left side of the barrel 8 by a spring. An L-shaped plate 142 is slidably connected to the inner wall of the elastic rod 141. A semi-circular block 143 is fixedly connected to the right side of the L-shaped plate 142. A convex ring 144 is fixedly connected to the circumferential surface of the short rod 133. The surface of the convex ring 144 is in contact with the right side of the semi-circular block 143. A scraper ring 145 is fixedly connected to the right side of the L-shaped plate 142. The circumferential surface of the scraper ring 145 is in contact with the surface of the water spray rod 15. A fixing frame 146 is fixedly connected to the inner wall of the barrel 8. A connecting rod 147 is rotatably connected to the inner wall of the fixing frame 146.

[0039] During the angle adjustment process, the rotation of the short rod 133 will drive the convex ring 144 to rotate. During the rotation of the convex ring 144, it will push the semicircular block 143 to the left through the squeezing force. The movement of the semicircular block 143 to the left will drive the L-shaped plate 142 to move. The movement of the L-shaped plate 142 will compress the spring set on the surface of the elastic rod 141. The movement of the L-shaped plate 142 will drive the scraper ring 145 to move. During the movement of the scraper ring 145, it will contact the water spray rod 15, thereby brushing off the sand and gravel particles attached to the nozzle of the water spray rod 15. This will prevent the device from being left still for a long time, causing impurities to adhere to the water spray rod 15 and affecting the normal flow of water. This will improve the spraying effect of the water mist and further enhance the dust suppression effect of the device.

[0040] A spoiler 148 is fixedly connected to the circumferential surface of the connecting rod 147, and a fixing block 149 is fixedly connected to the circumferential surface of the connecting rod 147. A U-shaped rod 1410 is rotatably connected to the inner wall of the fixing block 149. The spoiler 148 is used to adjust the airflow direction.

[0041] When the sprayed water flow is unstable, the operator can pull the U-shaped rod 1410 up and down. The up and down movement of the U-shaped rod 1410 will cause the fixed block 149 to rotate. The rotation of the fixed block 149 will cause the connecting rod 147 to rotate. The rotation of the connecting rod 147 will cause the baffle 148 to swing, thereby adjusting the angle of the baffle 148 to accurately guide the airflow direction, enhance the contact efficiency between water mist and dust, and allow the airflow to carry the water mist to form a directional jet flow, preventing the water mist from scattering. This allows the water mist and dust particles to fully collide and agglomerate, optimizes the compatibility between airflow and water mist, improves the targeting of dust suppression, and enhances the adaptability of the device to different operating conditions.

[0042] Working principle: During the angle adjustment process, the rotation of the short rod 133 will drive the convex ring 144 to rotate. During the rotation of the convex ring 144, the squeezing force will push the semi-circular block 143 to the left, thereby brushing off the sand and gravel particles attached to the nozzle of the water spray rod 15. This prevents the device from being stationary for a long time, which would cause impurities to adhere to the water spray rod 15 and affect the normal flow of water. This will improve the spraying effect of the water mist and further enhance the dust suppression effect of the device. When the sprayed water flow is unstable, the operator can pull the U-shaped rod 1410 up and down. The up and down movement of the U-shaped rod 1410 will drive the fixed block 149 to rotate, thereby adjusting the angle of the baffle 148 to accurately guide the airflow direction and enhance the contact efficiency between the water mist and dust.

[0043] This invention provides a multi-directional dust suppression device for open-cut tunnel construction. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A multi-directional dust suppression device for open-cut tunnel construction, comprising a mobile platform (1), characterized in that: A rotating rod (2) is rotatably connected to the inner wall of the moving platform (1). A gear (3) is fixedly connected to the circumferential surface of the rotating rod (2). A rotating shaft (4) is rotatably connected to the inner wall of the moving platform (1). A gear (5) is fixedly connected to the circumferential surface of the rotating shaft (4). A rotating frame (6) is fixedly connected to the circumferential surface of the rotating shaft (4). A round rod (7) is rotatably connected to the inner wall of the rotating frame (6). A cannon barrel (8) is fixedly connected to the circumferential surface of the round rod (7). The top of the rotating shaft (4) is fixedly connected to... A long plate (9) is connected to the inner wall of the long plate (9), a threaded rod (10) is rotatably connected to the inner wall of the long plate (9), a moving block (11) is threadedly connected to the circumferential surface of the threaded rod (10), a connecting plate (12) is rotatably connected to the inner wall of the moving block (11), a guide mechanism (13) for increasing the spraying range is provided on the top of the long plate (9), an anti-clogging mechanism (14) for preventing the dust reduction effect from deteriorating is provided on the inner wall of the cannon (8), and a water spray rod (15) is fixedly connected to the inner wall of the moving platform (1). The bottom of the rotating rod (2) is equipped with a motor, and the rotating rod (2) is driven to rotate by the motor. The circumferential surface of the second gear (5) meshes with the circumferential surface of the first gear (3). The left side of the threaded rod (10) is equipped with a motor, and the threaded rod (10) is driven to rotate by the motor. The second gear (5) is used to slow down the rotation speed of the rotating shaft (4). The bottom of the moving block (11) is slidably connected to the inner wall of the long plate (9), the circumferential surface of the barrel (8) is rotatably connected to the inner wall of the connecting plate (12), and the bottom of the long plate (9) is rotatably connected to the inner wall of the rotating frame (6). The guiding mechanism (13) includes a fixed plate (131), which is fixedly connected to the circumferential surface of the barrel (8). A moving rod (132) is slidably connected to the inner wall of the fixed plate (131), and a short rod (133) is rotatably connected to the inner wall of the barrel (8). A U-shaped frame (134) is fixedly connected to the circumferential surface of the short rod (133). The right side of the U-shaped frame (134) is in contact with the left side of the moving rod (132). A guide plate (135) is fixedly connected to the circumferential surface of the U-shaped frame (134). A limit plate (136) is fixedly connected to the circumferential surface of the round rod (7). An elastic telescopic rod (137) is fixedly connected to the front of the rotating frame (6). The front part of the elastic telescopic rod (137) is fixedly connected to a protrusion (138), the surface of the protrusion (138) is in contact with the inner wall of the limiting plate (136), the circumferential surface of the moving rod (132) is fixedly connected to an elastic telescopic plate (139), and the inner wall of the long plate (9) is in contact with the bottom of the elastic telescopic plate (139). The anti-clogging mechanism (14) includes an elastic rod (141), which is fixedly connected to the left side of the barrel (8) by a spring. An L-shaped plate (142) is slidably connected to the inner wall of the elastic rod (141), and a semi-circular block (143) is fixedly connected to the right side of the L-shaped plate (142). A convex ring (144) is fixedly connected to the circumferential surface of the short rod (133). The surface of the convex ring (144) is in contact with the right side of the semicircular block (143). A scraper ring (145) is fixedly connected to the right side of the L-shaped plate (142). The circumferential surface of the scraper ring (145) is in contact with the surface of the water spray bar (15). A fixing frame (146) is fixedly connected to the inner wall of the barrel (8). A connecting rod (147) is rotatably connected to the inner wall of the fixing frame (146).

2. The multi-directional dust suppression device for open-cut tunnel construction according to claim 1, characterized in that: A spoiler (148) is fixedly connected to the circumferential surface of the connecting rod (147), and a fixing block (149) is fixedly connected to the circumferential surface of the connecting rod (147). A U-shaped rod (1410) is rotatably connected to the inner wall of the fixing block (149). The spoiler (148) is used to adjust the airflow direction.

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