A dust suppression device for highway survey

Abstract

The present invention relates to the technical field of dust reduction in highway surveying, and particularly relates to a dust reduction device for highway surveying, which comprises a chassis and a water tank. The water tank is installed inside the chassis. A plurality of concentric water rings are arranged on the upper side of the water tank. The upper end of the chassis is fixed to adjacent concentric water rings. Adjacent concentric water rings are communicated and installed through a connecting cylinder. A concentric air ring is fixedly inserted between every two adjacent concentric water rings. An air supply ring frame is arranged above the water tank. The air supply ring frame is located below the concentric water rings and the concentric air rings. The bottom surface of each concentric air ring and the air supply ring frame are communicated and installed through a riser pipe. The present invention can enable the water in the sandwich structure of the sandwich water spray head to be ejected from the water spray holes. At the same time, the gas in the sandwich of the sandwich air spray head enters the sandwich of the sandwich water spray head from the gas spray holes, and then the gas assists in pushing the water out from the water spray holes. At the same time, the ejected water droplets contain gas, and the water droplets containing gas reduce the weight of the water droplets and increase the spraying range of the water droplets.

Description

Technical Field

[0001] The present invention relates to the technical field of dust reduction in highway surveying, and particularly to a dust reduction device for highway surveying. Background Art

[0002] Municipal highway engineering refers to the construction, maintenance, and renovation of public transportation facilities such as roads, bridges, tunnels, intersections, street lights, and markings in urban areas. Municipal highway engineering is an important part of municipal engineering and an important basic engineering facility in the city; during the construction process of municipal highways, guardrails are needed to separate the traffic arteries from the construction site to avoid affecting the normal driving of vehicles and pedestrians. For large-scale construction, in order to prevent excessive dust from being generated at the construction site and causing air pollution, dust reduction equipment is usually used to reduce the dust in the air at the construction site. Vehicles equipped with dust reduction equipment for dust reduction treatment can often be seen on the road.

[0003] Chinese Patent CN109289396B discloses a spraying-type environmental protection device for highway dust reduction, including an installation base. Both ends of the top of the installation base are provided with two installation holes. The middle of the top of the installation base is connected to a main seat by bolts. A first hole is provided in the middle of the bottom of the main seat, and a water inlet pipe is sleeved in the first hole. A groove is provided at the top of the main seat, and a fog atomization base is sleeved on the inner wall of the circumference of the groove. In this invention, a blower cover is provided between the inner wall of the top of the installation box at the top of the device and the top of the middle plate. The setting of the motor two and the paddle blades inside the blower cover can blow out the generated water mist at high speed, making the dust reduction efficiency higher. An out-fog box is provided on the inner wall of the top of the installation box at the top of the device. The top and bottom inner walls of the out-fog box are connected by bolts, and the partitions are arranged at an angle, so that the high-speed water mist can be sprayed out in a fan shape when passing through, making the spraying range wider. The above related technologies have the following defects: when spraying water, the water mist is generally directly sprayed out and then transported by wind. However, the sprayed water mist is generally in the shape of water droplets, with a heavier weight, and the distance range of the water mist floating out is smaller, and the dust reduction range is smaller. Therefore, a dust reduction device for highway surveying is proposed. Summary of the Invention

[0004] In order to increase the range of contact with water mist and the dust reduction range, the present invention provides a dust reduction device for highway surveying.

[0005] A dust suppression device for highway survey provided by the present invention adopts the following technical scheme: It includes a chassis and a water tank. The water tank is installed inside the chassis. A plurality of concentric water rings are arranged on the upper side of the water tank. The upper end of the chassis is fixed to the adjacent concentric water rings. The adjacent two concentric water rings are connected and installed through a connecting cylinder. A concentric air ring is fixedly inserted between every two adjacent concentric water rings. Above the water tank, there is an air supply ring frame. The air supply ring frame is located below the concentric water rings and the concentric air rings. The bottom surface of each concentric air ring and the air supply ring frame are connected and installed through a riser pipe. The upper surface of the concentric air ring is in a porous state.

[0006] On the upper surface of the concentric water ring, there is an interlayer water spray head. Inside the interlayer water spray head, there is an interlayer air jet head coaxially arranged. The interlayer air jet head fixedly penetrates through the interior of the adjacent concentric water ring. The lower end of the interlayer air jet head is connected to the air supply ring frame. Both the interlayer water spray head and the interlayer air jet head are provided with an interlayer structure. The interlayer structure of the interlayer water spray head is communicated with the concentric water ring. The interlayer structure of the interlayer air jet head is communicated with the air supply ring frame. The upper end of the interlayer water spray head is provided with a water spray hole. The upper end of the inner wall of the interlayer of the interlayer water spray head is provided with a communication hole. The upper end of the interlayer air jet head is provided with an air jet hole.

[0007] Optionally, a water pump is connected and installed on the outer surface of the water tank. The other end of the water pump is connected and installed to the outermost concentric water ring.

[0008] Optionally, there is a moving frame between the air supply ring frame and the water tank. Inside the interlayer air jet head, there is a blocking rod coaxially arranged. The upper end of the blocking rod slidably penetrates through the inner wall of the interlayer air jet head. The upper end of the blocking rod is located inside the interlayer air jet head. The air supply ring frame is slidably sleeved on the outer surface of the blocking rod. The lower end of the blocking rod is fixed to the upper surface of the moving frame. The bottom surface of the moving frame is elastically connected with a meshing ring. The inner ring surface of the meshing ring meshes with a side threaded rod. The lower end of the side threaded rod is rotatably inserted into the upper surface of the water tank.

[0009] Optionally, a transmission air ring is arranged on the inner ring side of the moving frame. On the upper ring surface of the transmission air ring, there is a cover ring rotatably inserted. On the upper surface of the cover ring, there is a communicating pipe fixedly inserted. The upper end of the communicating pipe is connected and installed to the air supply ring frame. Inside the inner ring side of the innermost concentric water ring among the multiple concentric water rings, there are multiple hollow air rods. The lower ends of the hollow air rods are connected and installed to the transmission air ring. At the end of the hollow air rod located above the concentric water ring, there is a through groove. Inside the through groove, there are multiple hollow horizontal shafts. Both ends of the hollow horizontal shaft are connected and installed to the hollow air rod. The outer surface of the hollow air rod is rotatably communicated with a jet plate. One end of the jet plate away from the axis of the water tank is in a porous structure.

[0010] Optionally, a horizontal frame is slidably sleeved on one end of the jet plate close to the central axis of the water tank. On one side of the hollow air rod close to the central axis of the water tank, there is a vertical rod. One end of the horizontal frame away from the jet plate is fixed to the vertical rod. An activity disk is slidably inserted into the inner ring surface of the transmission air ring. The lower end of each vertical rod is fixed to the upper surface of the activity disk.

[0011] Optionally, a central threaded rod passes through the thread at the axis of the movable disk, and the lower end of the central threaded rod is rotatably inserted into the upper surface of the water tank.

[0012] Optionally, a reciprocating motor is fixed on the upper surface of the water tank. The output end of the reciprocating motor is fixed with a driving gear. The output end of the reciprocating motor is driven by a conveyor belt with the side threaded rod. One side of the driving gear is engaged with a driven gear. The driven gear is fixedly sleeved on the outer surface of the central threaded rod. An internal tooth ring is fixed on the bottom surface of the transmission air ring. The driving gear is engaged with the inner ring surface of the internal tooth ring.

[0013] Optionally, one end of the plug rod located inside the sandwich structure of the sandwich jet head is a hemispherical structure, and the ball diameter of the hemispherical structure of the plug rod is larger than the inner diameter of the jet hole.

[0014] Optionally, the upper end surface of the sandwich jet head fits against the inner wall top end of the sandwich water jet head. The upper ends of both the sandwich jet head and the sandwich water jet head are conical. The jet hole and the adjacent lower water spray hole are coaxially arranged, and the inner diameter of the jet hole is smaller than the inner diameter of the water spray hole.

[0015] In summary, the present invention includes the following beneficial technical effects:

[0016] 1. By providing components such as a sandwich water jet head, a sandwich jet head, water spray holes, and jet holes, the concentric water ring fills water into the sandwich of the sandwich water jet head, and the air supply ring frame fills air into the sandwich of the sandwich jet head. The water in the sandwich structure of the sandwich water jet head sprays out from the water spray holes. At the same time, the gas in the sandwich of the sandwich jet head enters the sandwich of the sandwich water jet head from the jet holes. Then the gas assists in pushing the water to spray out from the water spray holes. At the same time, the sprayed water droplets wrap the gas. The water droplets wrapped with gas reduce the weight of the water droplets and increase the spraying range of the water droplets.

[0017] 2. By providing components such as a concentric air ring and an air supply ring frame, the air supply ring frame fills air into the concentric air ring through a riser pipe. The gas in the concentric air ring jets upward through the through-hole structure. The upward air flow increases the upward height of the water droplets and further increases the rising height of the water droplets.

[0018] 3. By providing components such as a hollow air rod, a transmission air ring, and a jet plate, during the forward and reverse rotation of the reciprocating motor, the driving gear drives the internal tooth ring and the driven gear to rotate forward and backward, causing the transmission air ring and the movable disk to rotate forward and backward. The hollow air rod drives the jet plate to rotate forward and backward around the axis of the movable disk following the transmission air ring. The air supply ring frame fills air into the transmission air ring, the hollow air rod, and the jet plate through a connecting pipe. The jet plate jets air toward the side away from the axis of the movable disk. The air flow blows the water droplets to be scattered outward, increasing the outward spraying distance of the water droplets. At the same time, during the forward and reverse rotation of the movable disk, it drives the vertical rod to reciprocate up and down by meshing with the central threaded rod. The vertical rod drives the horizontal frame to move up and down, driving the jet plate to swing, controlling the direction of the air flow sprayed by the jet plate, and changing the angle range of the water vapor spraying. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure in an embodiment of the present invention;

[0020] Figure 2 is a schematic top view structure diagram in an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of the water pump and the water tank connection in an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the moving frame and the plug rod connection in an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the sandwich jet head and the air supply ring frame connection in an embodiment of the present invention;

[0024] Figure 6 is a schematic front view of a part of the structure in an embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of the structure of the vertical rod and the movable disk connection in an embodiment of the present invention;

[0026] Figure 8 is in an embodiment of the present invention Figure 5 enlarged schematic view of the structure at A;

[0027] Figure 9 is in an embodiment of the present invention Figure 7 enlarged schematic view of the structure at B.

[0028] Reference numerals: 1, chassis; 2, water tank; 3, concentric water ring; 4, concentric air ring; 5, air supply ring frame; 51, transfer air ring; 52, cover ring; 53, connecting pipe; 54, hollow air rod; 55, hollow horizontal shaft; 56, through groove; 57, jet plate; 571, horizontal frame; 572, vertical rod; 573, movable disk; 574, central threaded rod; 6, riser; 7, sandwich water spray head; 8, sandwich jet head; 81, moving frame; 82, plug rod; 83, side threaded rod; 84, meshing ring; 9, water spray hole; 10, air spray hole; 11, communication hole; 12, water pump; 13, reciprocating motor; 14, driven gear; 15, driving gear; 16, conveyor belt; 17, internal gear ring; 18, connecting cylinder. Detailed Description of the Invention

[0029] The following is a further detailed description of the present invention in conjunction with the attached Figures 1-9 drawings.

[0030] An embodiment of the present invention discloses a dust suppression device for highway surveying. As Figures 1-9As shown in the figure, it includes a chassis 1 and a water tank 2. The water tank 2 is installed inside the chassis 1. Multiple concentric water rings 3 are arranged on the upper side of the water tank 2. The upper end of the chassis 1 is fixed to the adjacent concentric water rings 3. A water pump 12 is installed and connected to the outer surface of the water tank 2. The other end of the water pump 12 is connected and installed to the outermost concentric water ring 3. The water pump 12 fills the water in the water tank 2 into the concentric water rings 3. Adjacent two concentric water rings 3 are connected and installed through a connecting cylinder 18.

[0031] Concentric air rings 4 are fixedly inserted between every two adjacent concentric water rings 3. An air supply ring frame 5 is arranged above the water tank 2. An air inflation pump is installed on the air supply ring frame 5 to inflate gas into the air supply ring frame 5. The air supply ring frame 5 is located below the concentric water rings 3 and the concentric air rings 4. The bottom surface of each concentric air ring 4 and the air supply ring frame 5 are connected and installed through a riser pipe 6. The air supply ring frame 5 fills the gas into the concentric air rings 4 through the riser pipe 6. The upper surface of the concentric air ring 4 is in a porous shape. The concentric air ring 4 jets upward through the porous shape, and the upward jet airflow helps to increase the height of the ejected water droplets.

[0032] A sandwich water spray head 7 is installed on the upper surface of the concentric water ring 3. A sandwich air jet head 8 is coaxially arranged inside the sandwich water spray head 7. The upper end surface of the sandwich air jet head 8 fits against the top end of the inner wall of the sandwich water spray head 7. The upper ends of both the sandwich air jet head 8 and the sandwich water spray head 7 are conical. The air jet holes 10 are coaxially arranged with the adjacent lower water spray holes 9. The sandwich air jet head 8 fixedly penetrates through the inside of the adjacent concentric water ring 3. The lower end of the sandwich air jet head 8 is connected to the air supply ring frame 5. Both the sandwich water spray head 7 and the sandwich air jet head 8 are provided with sandwich structures. The sandwich structure of the sandwich water spray head 7 is communicated with the concentric water ring 3, and the concentric water ring 3 fills water into the sandwich of the sandwich water spray head 7. The sandwich structure of the sandwich air jet head 8 is communicated with the air supply ring frame 5, and the air supply ring frame 5 fills gas into the sandwich of the sandwich air jet head 8. The upper end of the sandwich water spray head 7 is provided with water spray holes 9. A communication hole 11 is opened at the upper end of the inner wall of the sandwich of the sandwich water spray head 7. The upper end of the sandwich air jet head 8 is provided with air jet holes 10. The inner diameter of the air jet holes 10 is smaller than the inner diameter of the water spray holes 9. The water in the sandwich structure of the sandwich water spray head 7 sprays out from the water spray holes 9. At the same time, the gas in the sandwich of the sandwich air jet head 8 enters the sandwich of the sandwich water spray head 7 from the air jet holes 10, and then the gas helps to push the water out from the water spray holes 9. At the same time, the ejected water droplets wrap the gas, and the water droplets wrapped with gas reduce the weight of the water droplets.

[0033] A moving frame 81 is arranged between the air supply ring frame 5 and the water tank 2. A blocking rod 82 is coaxially arranged inside the sandwich jet head 8. The upper end of the blocking rod 82 slidably penetrates the inner wall of the sandwich jet head 8. The upper end of the blocking rod 82 is located inside the sandwich jet head 8. One end of the blocking rod 82 located inside the sandwich structure of the sandwich jet head 8 is a hemispherical structure. The spherical diameter of the hemispherical structure of the blocking rod 82 is larger than the inner diameter of the air injection hole 10, so that when the blocking rod 82 moves upward, it blocks the air injection hole 10. At the same time, when the blocking rod 82 moves downward, it will not separate from the sandwich jet head 8. The air supply ring frame 5 is slidably sleeved on the outer surface of the blocking rod 82. The lower end of the blocking rod 82 is fixed to the upper surface of the moving frame 81. The bottom surface of the moving frame 81 is elastically connected with a meshing ring 84. The inner ring surface of the meshing ring 84 meshes with a side threaded rod 83. The lower end of the side threaded rod 83 is rotatably inserted into the upper surface of the water tank 2. When the side threaded rod 83 rotates forward and backward, it drives the blocking rod 82 to reciprocate upward through meshing with the meshing ring 84. When the blocking rod 82 moves upward, it blocks the air injection hole 10, so that the air injection hole 10 intermittently blows air into the sandwich water jet head 7, and the air flow entering the sandwich jet head 8 forms bubbles.

[0034] A transfer air ring 51 is arranged on the inner ring side of the moving frame 81. A cover ring 52 is rotatably inserted into the upper ring surface of the transfer air ring 51. A connecting pipe 53 is fixedly inserted into the upper surface of the cover ring 52. The upper end of the connecting pipe 53 is connected and installed with the air supply ring frame 5. A plurality of hollow air rods 54 are arranged on the inner ring side of the innermost concentric water ring 3 among the plurality of concentric water rings 3. The lower ends of the hollow air rods 54 are connected and installed with the transfer air ring 51. A through slot 56 is opened at one end of the hollow air rod 54 located above the concentric water ring 3. A plurality of hollow cross shafts 55 are arranged inside the through slot 56. Both ends of the hollow cross shaft 55 are connected and installed with the hollow air rod 54. The outer surface of the hollow air rod 54 is rotatably connected with a jet plate 57. One end of the jet plate 57 away from the axis of the water tank 2 is a hole structure. The air supply ring frame 5 fills the transfer air ring 51 with air through the connecting pipe 53. The air flow fills the jet plate 57 through the transfer air ring 51, the hollow air rod 54 and the hollow cross shaft 55. The jet plate 57 ejects the air flow in the direction away from the central axis of the moving frame 81 from the hole structure, and the air flow assists in driving the water mist sprayed out of the water spraying holes 9 to be sprayed outward.

[0035] A horizontal frame 571 is slidably sleeved at one end of the jet plate 57 close to the central axis of the water tank 2. A vertical rod 572 is arranged on one side of the hollow air rod 54 close to the central axis of the water tank 2. One end of the horizontal frame 571 away from the jet plate 57 is fixed to the vertical rod 572. A movable disk 573 is slidably inserted into the inner ring surface of the transfer air ring 51. A central threaded rod 574 is threaded through the axis of the movable disk 573. The lower end of the central threaded rod 574 is rotatably inserted into the upper surface of the water tank 2. A reciprocating motor 13 is fixed on the upper surface of the water tank 2. The output end of the reciprocating motor 13 is fixed with a driving gear 15. The output end of the reciprocating motor 13 and the side threaded rod 83 are driven by a conveyor belt 16. A driven gear 14 is meshed on one side of the driving gear 15. The driven gear 14 is fixedly sleeved on the outer surface of the central threaded rod 574. An internal gear ring 17 is fixed to the bottom surface of the transfer air ring 51. The driving gear 15 is meshed with the inner ring surface of the internal gear ring 17. During the forward and reverse rotation of the reciprocating motor 13, the internal gear ring 17 and the driven gear 14 are driven to rotate forward and backward by the driving gear 15, so that the transfer air ring 51 and the movable disk 573 rotate forward and backward. At the same time, the rotation directions of the transfer air ring 51 and the movable disk 573 are opposite. At the same time, during the forward and reverse rotation of the movable disk 573, the vertical rod 572 is driven to reciprocate up and down by meshing with the central threaded rod 574. When the vertical rod 572 drives the horizontal frame 571 to move up and down, the jet plate 57 is driven to swing, controlling the direction of the airflow ejected by the jet plate 57 and changing the angle range of water vapor spraying. The lower end of each vertical rod 572 is fixed to the upper surface of the movable disk 573.

[0036] The working principle is as follows: The concentric water ring 3 fills water into the interlayer of the interlayer water spray head 7, and the air supply ring frame 5 fills air into the interlayer of the interlayer air jet head 8. The water in the interlayer structure of the interlayer water spray head 7 sprays out from the water spray holes 9. At the same time, the gas in the interlayer of the interlayer air jet head 8 enters the interlayer of the interlayer water spray head 7 from the air jet holes 10, and then the gas assists in pushing the water to spray out from the water spray holes 9. At the same time, the sprayed water droplets contain gas inside. The water droplets wrapped with gas reduce the weight of the water droplets. The air supply ring frame 5 fills air into the concentric air ring 4 through the vertical pipe 6. The gas in the concentric air ring 4 jets upward through the through-hole structure. The upward airflow increases the upward height of the water droplets, further increasing the rising height of the water droplets and increasing the spraying range of the water droplets.

[0037] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A dust suppression device for highway survey, comprising a chassis (1) and a water tank (2), characterized in that: The water tank (2) is installed inside the chassis (1). A plurality of concentric water rings (3) are arranged on the upper side of the water tank (2). The upper end of the chassis (1) is fixed to the adjacent concentric water rings (3). The adjacent two concentric water rings (3) are connected and installed through a connecting cylinder (18). A concentric air ring (4) is fixedly inserted between every two adjacent concentric water rings (3). An air supply ring frame (5) is arranged above the water tank (2). The air supply ring frame (5) is located below the concentric water rings (3) and the concentric air rings (4). The bottom surface of each concentric air ring (4) and the air supply ring frame (5) are connected and installed through a riser pipe (6). The upper surface of the concentric air ring (4) is in a porous shape; The upper surface of the concentric water ring (3) is installed with a sandwich water spray head (7). A sandwich air jet head (8) is coaxially arranged inside the sandwich water spray head (7). The sandwich air jet head (8) fixedly penetrates through the interior of the adjacent concentric water ring (3). The lower end of the sandwich air jet head (8) is connected to the air supply ring frame (5). Both the sandwich water spray head (7) and the sandwich air jet head (8) are provided with sandwich structures. The sandwich structure of the sandwich water spray head (7) is communicated with the concentric water ring (3). The sandwich structure of the sandwich air jet head (8) is communicated with the air supply ring frame (5). The upper end of the sandwich water spray head (7) is provided with a water spray hole (9). The upper end of the inner wall of the sandwich of the sandwich water spray head (7) is provided with a communication hole (11). The upper end of the sandwich air jet head (8) is provided with an air jet hole (10).

2. The dust suppression device for highway survey according to claim 1, characterized in that: A water pump (12) is connected and installed on the outer surface of the water tank (2). The other end of the water pump (12) is connected and installed to the outermost concentric water ring (3).

3. The dust suppression device for highway survey according to claim 1, wherein: A moving frame (81) is arranged between the air supply ring frame (5) and the water tank (2). A blocking rod (82) is coaxially arranged inside the sandwich air jet head (8). The upper end of the blocking rod (82) slidably penetrates through the inner wall of the sandwich air jet head (8). The upper end of the blocking rod (82) is located inside the sandwich air jet head (8). The air supply ring frame (5) is slidably sleeved on the outer surface of the blocking rod (82). The lower end of the blocking rod (82) is fixed to the upper surface of the moving frame (81). The bottom surface of the moving frame (81) is elastically connected with a meshing ring (84). The inner ring surface of the meshing ring (84) meshes with a side threaded rod (83). The lower end of the side threaded rod (83) is rotatably inserted into the upper surface of the water tank (2).

4. The dust suppression device for highway survey according to claim 3, characterized in that: A transfer air ring (51) is arranged on the inner ring side of the moving frame (81). A cover ring (52) is rotatably inserted on the upper ring surface of the transfer air ring (51). A communication pipe (53) is fixedly inserted on the upper surface of the cover ring (52). The upper end of the communication pipe (53) is connected and installed to the air supply ring frame (5). A plurality of hollow air rods (54) are arranged on the inner ring side of the innermost concentric water ring (3) among the plurality of concentric water rings (3). The lower ends of the hollow air rods (54) are connected and installed to the transfer air ring (51). A through groove (56) is arranged at one end of the hollow air rod (54) located above the concentric water ring (3). A plurality of hollow horizontal shafts (55) are arranged inside the through groove (56). Both ends of the hollow horizontal shaft (55) are connected and installed to the hollow air rod (54). The outer surface of the hollow air rod (54) is rotatably communicated with an air jet plate (57). One end of the air jet plate (57) away from the axis of the water tank (2) is in a hole structure.

5. The dust suppression device for highway survey according to claim 4, characterized in that: One end of the jet plate (57) close to the central axis of the water tank (2) is slidably sleeved with a horizontal frame (571). One side of the hollow air rod (54) close to the central axis of the water tank (2) is provided with a vertical rod (572). One end of the horizontal frame (571) away from the jet plate (57) is fixed to the vertical rod (572). The inner ring surface of the transmission air ring (51) is slidably inserted with a movable disk (573). The lower end of each vertical rod (572) is fixed to the upper surface of the movable disk (573).

6. The dust suppression device for highway survey according to claim 5, characterized in that: A central threaded rod (574) threadedly penetrates through the axis of the movable disk (573). The lower end of the central threaded rod (574) is rotatably inserted into the upper surface of the water tank (2).

7. The dust suppression device for highway survey according to claim 6, characterized in that: A reciprocating motor (13) is fixed to the upper surface of the water tank (2). The output end of the reciprocating motor (13) is fixed with a driving gear (15). The output end of the reciprocating motor (13) is driven by a conveyor belt (16) with a side threaded rod (83). One side of the driving gear (15) is engaged with a driven gear (14). The driven gear (14) is fixedly sleeved on the outer surface of the central threaded rod (574). An internal gear ring (17) is fixed to the bottom surface of the transmission air ring (51). The driving gear (15) is engaged with the inner ring surface of the internal gear ring (17).

8. The dust suppression device for highway survey according to claim 3, characterized in that: One end of the blocking rod (82) located inside the sandwich structure of the sandwich jet head (8) is a hemispherical structure. The ball diameter of the hemispherical structure of the blocking rod (82) is larger than the inner diameter of the air jet hole (10).

9. The dust suppression device for highway survey according to claim 1, characterized in that: The upper end surface of the sandwich jet head (8) is attached to the top end of the inner wall of the sandwich water jet head (7). The upper ends of both the sandwich jet head (8) and the sandwich water jet head (7) are conical. The air jet hole (10) is coaxially arranged with the adjacent lower water jet hole (9). The inner diameter of the air jet hole (10) is smaller than the inner diameter of the water jet hole (9).

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