Water spraying dust suppression device for tunnel construction

Abstract

The invention discloses a water spraying dust suppression device for tunnel construction, which comprises a water tank, two groups of movable wheels are rotatably connected to the outer wall of the bottom of the water tank, rollers are arranged on both sides of the water tank, and rotating shafts are fixedly connected to the circumferential inner walls of the rollers. The two ends of the rotating shaft penetrate through the inner walls of the two sides of the water tank. According to the device, when a connecting rod rotates forwards and backwards in a reciprocating mode, a gear ring can be driven to rotate together, and the gear ring is meshed with a tooth groove formed in the outer wall of an annular plate, so that a first spray head can be driven to do reciprocating arc-shaped motion anticlockwise, and the dust falling area of the first spray head is effectively enlarged; and meanwhile, a first gear and a second gear disc are arranged in the other spraying assembly, so that turning work of a gear ring can be achieved, a second spray head can do reciprocating arc-shaped motion clockwise and can be matched with a first spray head, and the dust falling effect of the device on the interior of the tunnel is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of dust suppression in tunnel construction, and in particular to a water spraying dust suppression device for tunnel construction. Background Art

[0002] During tunnel construction, a large amount of dust and particulate matter will be generated due to excavation, blasting, transportation and other work. In order to prevent a large amount of dust from affecting the normal construction of the tunnel and the health of the workers, a water spray device will be installed inside the tunnel to achieve effective dust suppression.

[0003] After searching, the Chinese utility model patent with announcement number CN221236739U discloses a tunnel construction dust reduction device, which relates to the technical field of tunnel dust reduction design, including a water tank, one end of the water tank is connected to a connecting pipe, the top of the fixed block is fixedly connected to a fixed column, one side of the fixed column is provided with a cross frame, the bottom of the cross frame is connected to a pull rod, one side of the cross frame is installed with a nozzle, one end of the cross frame is fixedly connected to a sliding block, a hydraulic cylinder is installed inside the fixed column, and a hydraulic rod is connected inside the hydraulic cylinder.

[0004] Based on the existing technologies, the above patents still have the following shortcomings: when performing dust reduction work inside the tunnel, the dust reduction area is limited, resulting in a large number of dust reduction dead corners in the tunnel. The overall dust reduction effect during tunnel construction is poor and cannot meet people's use needs. Therefore, a water spray dust suppression device for tunnel construction is urgently needed to solve the above problems. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a water spray dust suppression device for tunnel construction to overcome the above-mentioned technical problems existing in the existing related art.

[0006] The technical solution of the present invention is achieved in this way:

[0007] A water spray dust suppression device for tunnel construction, comprising a water tank, the bottom outer wall of the water tank is rotatably connected with movable wheels, the number of the movable wheels is two groups, rollers are arranged on both sides of the water tank, the circumferential inner wall of the roller is fixedly connected with a rotating shaft, both ends of the rotating shaft pass through the inner walls of both sides of the water tank, and a handle is fixedly connected to the outer wall of one side of the water tank;

[0008] A partition is fixedly connected to the inside of the water tank, the rotating shaft is located below the partition, a water pump is fixedly connected to the top outer wall of the partition, a water pump is fixedly connected to the top of the water pump, and one end of the water pump extends to the top of the water tank;

[0009] A spray assembly is provided on the top of the water tank, the spray assembly is connected to the water pumping pipe, and the number of the spray assembly is two groups;

[0010] A transmission assembly and a drive assembly are provided on one side of the water tank, and the number of the drive assemblies is two groups;

[0011] A water injection hole is provided on the top outer wall of the water tank, and a sealing plug is inserted into the water injection hole.

[0012] Furthermore, the spray assembly includes a vertical pipe inserted into the circumferential outer wall of the water suction pipe, the top of the vertical pipe is fixedly connected to a bellows, the end of the bellows away from the vertical pipe is fixedly connected to a water pipe, the end of the water pipe away from the bellows is inserted with a nozzle, and the cross-section of the nozzle is an arc.

[0013] Furthermore, a group of first nozzles are inserted into the circumferential outer wall of the nozzle pipes and are distributed in an arc shape at equal distances. The circumferential outer wall of the first nozzle is rotatably connected to a baffle, and the baffle is located directly above the first nozzle. The top outer wall of the baffle is provided with dispersion grooves distributed at equal distances. A spring is fixedly connected to the outer wall of one side of the baffle, and the end of the spring away from the baffle is fixedly connected to the circumferential outer wall of the first nozzle.

[0014] Furthermore, a second nozzle which is equidistantly distributed in an arc shape is inserted into the circumferential outer wall of the other nozzle, one end of the second nozzle is fixedly connected to a diffusion plate, and a mist plate which is equidistantly distributed in a circular shape is fixedly connected to the circumferential inner wall of the diffusion plate, the cross-section of the mist plate is a broken line, and a mist groove which is equidistantly distributed is opened on the outer wall of one side of the mist plate.

[0015] Furthermore, the transmission assembly includes a driving wheel fixedly connected to the circumferential outer wall of the rotating shaft, the circumferential outer wall of the driving wheel is transmission-connected to a transmission belt, and the transmission belt is transmission-connected to a driven wheel.

[0016] Furthermore, a fixing frame is fixedly connected to an outer wall of one side of the water tank, a first rotating column is fixedly connected to an inner circumferential wall of the driven wheel, and the first rotating column is rotatably connected to the fixing frame.

[0017] Further, the driving assembly includes a second bevel gear fixedly connected to the circumferential outer wall of the first rotating column, the circumferential outer wall of the second bevel gear is meshed with the first bevel gear, a first rotating rod is fixedly connected to an outer wall on one side of the first bevel gear, an end of the first rotating rod away from the first bevel gear is rotatably connected to the fixed frame, a fixed sleeve is fixedly connected to the circumferential outer wall of the first rotating rod, a crank is fixedly connected to the circumferential outer wall of the fixed sleeve, an end of the crank away from the fixed sleeve is rotatably connected to a rotating seat, a connecting rod is fixedly connected to the circumferential outer wall of the rotating seat, an end of the connecting rod away from the rotating seat is rotatably connected to a connecting seat, and a gear ring is fixedly connected to one side of the connecting seat.

[0018] Furthermore, an L-shaped rod is fixedly connected to the circumferential outer wall of the nozzle, and an annular plate is fixedly connected to one end of the L-shaped rod away from the nozzle. A tooth groove is formed on the circumferential outer wall of the annular plate, and the annular plate meshes with the gear ring through the tooth groove.

[0019] Furthermore, a group of the first rotating rods have a circumferential outer wall fixedly connected to a first gear plate, the first gear plate is meshed with a second gear plate, one side outer wall of the water tank is fixedly connected to a horizontal plate, the first rotating rod is rotatably connected to the horizontal plate, the circumferential inner wall of the second gear plate is fixedly connected to a second rotating column, and the other fixed sleeve is fixedly connected to the circumferential outer wall of the second rotating column.

[0020] Furthermore, a groove is provided on one side outer wall of the water tank, a positioning frame is fixedly connected to one side outer wall of the water tank, and one end of the two groups of the first rotating rods and the first rotating column are both rotatably connected to the positioning frame.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a water spray dust suppression device for tunnel construction, which includes a spray assembly, a first nozzle and a second nozzle. Since the number of the entire spray assembly is two groups, and they are arranged one in front of the other, when the spray assembly located in the front is spraying water to suppress dust, water is sprayed from the first nozzle. Since the spray hole of the first nozzle is larger than that of the second nozzle, the droplets sprayed from the first nozzle are also relatively large. The first nozzle is located at the front side of the water tank. The droplets sprayed from the first nozzle will first contact with the air, so that larger particles of dust can be adsorbed and settled. At the same time, in the process of the first nozzle spraying liquid, the droplets will first contact with the dispersion groove opened on one side of the baffle, and can collide with the droplets sprayed from the first nozzle through the dispersion groove, thereby Splashing will occur, which will expand the water spraying and dust reduction area of ​​the first nozzle. At the same time, the spring arranged on one side of the baffle can make it have good reset ability, so that the baffle can cyclically collide with the droplets sprayed from the first nozzle, and the second nozzle located at the rear has a smaller spray hole than the first nozzle, so that the droplets sprayed from the second nozzle can be smaller, and the air after the dust reduction by the first nozzle can be effectively subjected to secondary dust reduction treatment to avoid a certain amount of fine dust in the air. In the process of liquid being sprayed from the second nozzle, it will collide with the atomizing plate. The atomizing groove opened on one side of the atomizing plate can cut the droplets smaller, further expanding the spraying area of ​​the nozzle and improving the adsorption and dust reduction effect on small-size dust.

[0023] The present invention provides a water spray dust suppression device for tunnel construction. Through the transmission assembly and the driving assembly, when the worker pushes the water tank to move, the roller can drive the rotating shaft to rotate, and during the rotation of the rotating shaft, the driving wheel can be driven to rotate, and the driving wheel can drive the transmission belt and the driven wheel to rotate together, and during the rotation of the driven wheel, the first rotating column can be driven to rotate, and when the first rotating column rotates, the second bevel gear can be made to perform a circular motion, and the first bevel gear is meshed on both sides of the second bevel gear, so that the second bevel gear and the first rotating rod can be driven to rotate, and during the rotation of the first rotating rod, the first rotating rod can be driven to rotate. The fixed sleeve and the crank rotate, and the crank is rotatably connected to the connecting rod, thereby realizing the forward and reverse reciprocating rotation of the connecting rod. When the connecting rod rotates forward and reverse, it can drive the gear ring to rotate together, and the gear ring is meshed with the tooth grooves provided on the outer wall of the ring plate, thereby driving the first nozzle to perform reciprocating arc motion counterclockwise, effectively expanding the dust reduction area of ​​the first nozzle. At the same time, since the first gear and the second gear plate are provided in another group of spray assemblies, the gear ring can change direction, so that the second nozzle can perform reciprocating arc motion clockwise, and can cooperate with the first nozzle to ensure the dust reduction effect of the device on the inside of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall front structure of the present invention.

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0027] Figure 3 For the present invention Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0028] Figure 4 It is a schematic diagram of the overall back structure of the present invention.

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0030] Figure 6 It is a schematic diagram of the internal structure of the water tank of the present invention.

[0031] Figure 7 It is a schematic diagram of the structure of the driving assembly and the transmission assembly of the present invention.

[0032] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at D in the middle.

[0033] In the figure:

[0034] 1. Water tank; 2. Roller; 3. Handle; 4. Movable wheel; 5. Spray assembly; 5001. Spray pipe; 5002. L-shaped rod; 5003. Water pipe; 5004. Bellows; 5006. Ring plate; 5007. Tooth groove; 6. Suction pipe; 7. Driving assembly; 7001. First rotating rod; 7002. First bevel gear; 7003. Fixed sleeve; 7004. Crank; 7005. Rotating seat; 7006. Connecting rod; 7007. Groove; 7008. Gear ring; 7009. First Two bevel gears; 7010, connecting seat; 8, first nozzle; 9, baffle; 10, spring; 11, dispersion groove; 12, fixing frame; 13, driven wheel; 14, first rotating column; 15, transmission belt; 16, driving wheel; 17, rotating shaft; 18, sealing plug; 19, second nozzle; 20, diffusion plate; 21, atomizing plate; 22, atomizing groove; 23, water pump; 24, partition; 25, positioning frame; 26, first gear plate; 27, horizontal plate; 28, second gear plate; 29, second rotating column. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0036] See also Figure 1-Figure 8 A water spray dust suppression device for tunnel construction includes a water tank 1, the bottom outer wall of the water tank 1 is rotatably connected with movable wheels 4, the number of movable wheels 4 is two groups, rollers 2 are arranged on both sides of the water tank 1, the circumferential inner wall of the roller 2 is fixedly connected with a rotating shaft 17, both ends of the rotating shaft 17 pass through the inner walls of both sides of the water tank 1, and a handle 3 is fixedly connected to the outer wall of one side of the water tank 1;

[0037] A partition 24 is fixedly connected inside the water tank 1, and the rotating shaft 17 is located below the partition 24. A water pump 23 is fixedly connected to the top outer wall of the partition 24, and a water pump 6 is fixedly connected to the top of the water pump 23, and one end of the water pump 6 extends to the top of the water tank 1;

[0038] A spray assembly 5 is provided on the top of the water tank 1, and the spray assembly 5 is connected to the water pump 6. There are two groups of spray assemblies 5. When the staff needs to perform dust reduction and dust suppression work inside the tunnel, they can first move the device to the inside of the tunnel through the rollers 2 and the movable wheels 4, and start the water pump 23 at the same time. The water pump 23 can quickly pump the clean water inside the water tank 1 into the water pump 6. With the continuous influx of clean water inside the water pump 6, the clean water will be sprayed out through the two groups of spray assemblies 5, so that the dust reduction work for the tunnel construction can be achieved;

[0039] A transmission assembly and a drive assembly 7 are provided on one side of the water tank 1, and the number of the drive assembly 7 is two groups;

[0040] A water injection hole is provided on the top outer wall of the water tank 1, and a sealing plug 18 is inserted into the water injection hole.

[0041] Preferably, the spray assembly 5 includes a vertical pipe inserted in the circumferential outer wall of the water suction pipe 6, the top of the vertical pipe is fixedly connected with a bellows 5004, the end of the bellows 5004 away from the vertical pipe is fixedly connected with a water pipe 5003, the end of the water pipe 5003 away from the bellows 5004 is inserted with a nozzle 5001, the cross section of the nozzle 5001 is arc-shaped, the circumferential outer wall of a group of nozzles 5001 is inserted with first nozzles 8 distributed in an arc shape at equal distances, the circumferential outer wall of the first nozzle 8 is rotatably connected with a baffle 9, the baffle 9 is located directly above the first nozzle 8, and the top outer wall of the baffle 9 is provided with dispersion grooves 11 distributed at equal distances, and the outer wall of one side of the baffle 9 is fixedly connected with a spring 10, and the end of the spring 10 away from the baffle 9 is fixedly connected to the circumferential outer wall of the first nozzle 8. The number of the entire spray assembly 5 is two groups, and one front A rear setting is provided, when the spray assembly 5 located in the front is spraying water to reduce dust, water is sprayed from the first nozzle 8. Since the spray hole of the first nozzle 8 is larger than the second nozzle 19, the droplets sprayed from the first nozzle 8 are also relatively large, and the first nozzle 8 is located on the front side of the water tank 1. The droplets sprayed by the first nozzle 8 will first come into contact with the air, so that larger particles of dust can be adsorbed and settled. At the same time, in the process of the first nozzle 8 spraying liquid, the droplets will first come into contact with the dispersion groove 11 opened on one side of the baffle 9, and can collide with the droplets sprayed by the first nozzle 8 through the dispersion groove 11, and then splashes will occur, thereby expanding the water spraying and dust reduction area of ​​the first nozzle 8. At the same time, the spring 10 arranged on one side of the baffle 9 can make it have a good reset ability, so that the baffle 9 can cyclically collide with the droplets sprayed by the first nozzle 8.

[0042] Preferably, the circumferential outer wall of the other nozzle 5001 is plugged with a second nozzle 19 which is equidistantly distributed in an arc shape, one end of the second nozzle 19 is fixedly connected to a diffusion plate 20, and the circumferential inner wall of the diffusion plate 20 is fixedly connected to an atomizing plate 21 which is equidistantly distributed in a circular shape, the cross-section of the atomizing plate 21 is in a broken line shape, and an outer wall on one side of the atomizing plate 21 is provided with atomizing grooves 22 which are equidistantly distributed. The second nozzle 19 located at the rear has a spray hole smaller than the first nozzle 8, so that the droplets sprayed by the second nozzle 19 can be made smaller, and the air after the dust is reduced by the first nozzle 8 can be effectively subjected to secondary dust reduction treatment to avoid a certain amount of fine dust in the air. In the process of the liquid being sprayed from the second nozzle 19, it will collide with the atomizing plate 21, and the atomizing groove 22 opened on one side of the atomizing plate 21 can cut the droplets into smaller pieces, thereby further expanding the spraying area of ​​the nozzle and improving the adsorption and dust reduction effect on small-size dust.

[0043] Preferably, the transmission assembly includes a driving wheel 16 fixedly connected to the circumferential outer wall of the rotating shaft 17, the circumferential outer wall of the driving wheel 16 is transmission-connected with a transmission belt 15, the transmission belt 15 is transmission-connected with a driven wheel 13, one side outer wall of the water tank 1 is fixedly connected with a fixed frame 12, the circumferential inner wall of the driven wheel 13 is fixedly connected with a first rotating column 14, the first rotating column 14 is rotationally connected to the fixed frame 12, when the staff pushes the water tank 1 to move, the rotating shaft 17 can be driven to rotate through the roller 2, and the driving wheel 16 can be driven to rotate during the rotation of the rotating shaft 17, the driving wheel 16 can drive the transmission belt 15 and the driven wheel 13 to rotate together, and the first rotating column 14 can be driven to rotate during the rotation of the driven wheel 13, thereby providing continuous power for the subsequent drive assembly 7.

[0044] Preferably, the driving assembly 7 includes a second bevel gear 7009 fixedly connected to the circumferential outer wall of the first rotating column 14, the circumferential outer wall of the second bevel gear 7009 is meshed with the first bevel gear 7002, a first rotating rod 7001 is fixedly connected to one side outer wall of the first bevel gear 7002, one end of the first rotating rod 7001 away from the first bevel gear 7002 is rotatably connected to the fixed frame 12, and a fixed sleeve 7003 is fixedly connected to the circumferential outer wall of the first rotating rod 7001, and the fixed sleeve 7003 is fixedly connected to the circumferential outer wall of the first rotating rod 7001. The outer circumferential wall of the nozzle 5001 is fixedly connected to a crank 7004, and one end of the crank 7004 away from the fixed sleeve 7003 is rotatably connected to a rotating seat 7005. The outer circumferential wall of the rotating seat 7005 is fixedly connected to a connecting rod 7006, and one end of the connecting rod 7006 away from the rotating seat 7005 is rotatably connected to a connecting seat 7010, and one side of the connecting seat 7010 is fixedly connected to a gear ring 7008. The outer circumferential wall of the nozzle 5001 is fixedly connected to an L-shaped rod 5002, and the L-shaped rod 5002 is away from the nozzle 5001. One end of the first rotating column 14 is fixedly connected to a ring plate 5006, and a tooth groove 5007 is provided on the circumferential outer wall of the ring plate 5006. The ring plate 5006 is meshed with the gear ring 7008 through the tooth groove 5007. When the first rotating column 14 rotates, the second bevel gear 7009 can make a circular motion, and the first bevel gear 7002 is meshed on both sides of the second bevel gear 7009, so that the second bevel gear 7009 and the first rotating rod 7001 can be driven to rotate. During the rotation of the first rotating rod 7001, It can drive the fixed sleeve 7003 and the crank 7004 to rotate, and the crank 7004 is rotatably connected to the connecting rod 7006, so that the connecting rod 7006 can rotate back and forth. When the connecting rod 7006 rotates back and forth, it can drive the gear ring 7008 to rotate together, and the gear ring 7008 is engaged with the tooth groove 5007 provided on the outer wall of the ring plate 5006, thereby driving the first nozzle 8 to perform reciprocating arc motion counterclockwise, effectively expanding the dust reduction area of ​​the first nozzle 8.

[0045] Preferably, a group of first rotating rods 7001 have a circumferential outer wall fixedly connected to a first gear plate 26, the first gear plate 26 is meshed with a second gear plate 28, a side outer wall of the water tank 1 is fixedly connected to a transverse plate 27, the first rotating rod 7001 is rotatably connected to the transverse plate 27, the circumferential inner wall of the second gear plate 28 is fixedly connected to the second rotating column 29, another fixed sleeve 7003 is fixedly connected to the circumferential outer wall of the second rotating column 29, and another group of spray assemblies 5 are provided with a first gear and a second gear plate 28, thereby enabling the gear ring 7008 to change direction, so that the second nozzle 19 can perform reciprocating arc motion clockwise, and can cooperate with the first nozzle 8 to ensure the dust reduction effect of the device on the inside of the tunnel.

[0046] Preferably, a groove 7007 is provided on the outer wall of one side of the water tank 1 to prevent the connecting rod 7006 from being blocked by the water tank 1 when rotating. A positioning frame 25 is fixedly connected to the outer wall of one side of the water tank 1. One end of the two groups of first rotating rods 7001 and the first rotating column 14 are rotatably connected to the positioning frame 25, ensuring that the two groups of first rotating rods 7001 and the first rotating column 14 can rotate stably.

[0047] In summary, with the help of the above technical scheme of the present invention, when the staff needs to carry out dust reduction and dust suppression work inside the tunnel, they can first move the device to the inside of the tunnel through the rollers 2 and the movable wheels 4, and start the water pump 23 at the same time. The clean water inside the water tank 1 can be quickly pumped into the water pumping pipe 6 through the water pump 23. As the clean water inside the water pumping pipe 6 continues to flow into the inside of the nozzle 5001 through the bellows 5004 and the water guide pipe 5003. The clean water flowing into the nozzle 5001 will be sprayed out from the first nozzle 8 and the second nozzle 19 respectively. The number of the entire spray assembly 5 is two groups, and they are arranged one in front and the other in the back. When the spray assembly 5 located in the front is spraying water to reduce dust, the water flows from the first nozzle 8 Spraying, since the spray hole of the first nozzle 8 is larger than that of the second nozzle 19, the droplets sprayed by the first nozzle 8 are also relatively large, and the first nozzle 8 is located at the front side of the water tank 1, and the droplets sprayed by the first nozzle 8 will first contact with the air, so that larger particles of dust can be adsorbed and settled. At the same time, during the process of the first nozzle 8 spraying liquid, the droplets will first contact with the dispersion groove 11 opened on one side of the baffle 9, and can collide with the droplets sprayed by the first nozzle 8 through the dispersion groove 11, and then splashing will occur, thereby expanding the water spraying and dust reduction area of ​​the first nozzle 8. At the same time, the spring 10 arranged on one side of the baffle 9 can make it have a good reset ability, so that the baffle 9 can cyclically collide with the droplets sprayed by the first nozzle 8;

[0048] The second nozzle 19 at the rear has a smaller nozzle hole than the first nozzle 8, so that the droplets sprayed by the second nozzle 19 can be smaller, and the air after the dust removal by the first nozzle 8 can be effectively subjected to secondary dust removal treatment, so as to avoid a certain amount of fine dust in the air. In addition, when the liquid is sprayed from the second nozzle 19, it will collide with the atomizing plate 21. The atomizing groove 22 opened on one side of the atomizing plate 21 can cut the droplets into smaller pieces, further expanding the spraying area of ​​the nozzle and improving the adsorption and dust removal effect on small-size dust.

[0049] When the staff pushes the water tank 1 to move, the roller 2 can drive the rotating shaft 17 to rotate, and the driving wheel 16 can be driven to rotate during the rotation of the rotating shaft 17. The driving wheel 16 can drive the transmission belt 15 and the driven wheel 13 to rotate together. During the rotation of the driven wheel 13, the first rotating column 14 can be driven to rotate. When the first rotating column 14 rotates, the second bevel gear 7009 can make a circular motion, and the first bevel gear 7002 is meshed on both sides of the second bevel gear 7009, so that the second bevel gear 7009 and the first rotating rod 7001 can be driven to rotate. During the rotation of the first rotating rod 7001, the fixed sleeve 7003 and the crank 7004 can be driven to rotate, and the crank 7004 is rotatably connected to the connecting rod 7006, thereby realizing the forward and reverse reciprocating rotation of the connecting rod 7006. When the connecting rod 7006 rotates forward and reverse, it can drive the gear ring 7008 to rotate together, and the gear ring 7008 is meshed with the tooth groove 5007 provided on the outer wall of the ring plate 5006, thereby driving the first nozzle 8 to perform reciprocating arc motion counterclockwise, effectively expanding the dust reduction area of ​​the first nozzle 8. At the same time, since the first gear and the second gear plate 28 are provided in another group of spray components 5, the gear ring 7008 can be changed in direction, so that the second nozzle 19 can perform reciprocating arc motion clockwise, and can cooperate with the first nozzle 8 to ensure the dust reduction effect of the device on the inside of the tunnel.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water spray dust suppression device for tunnel construction, comprising a water tank (1), characterized in that: The bottom outer wall of the water tank (1) is rotatably connected to movable wheels (4), the movable wheels (4) being provided in two groups, rollers (2) are provided on both sides of the water tank (1), the circumferential inner walls of the rollers (2) are fixedly connected to a rotating shaft (17), both ends of the rotating shaft (17) pass through the inner walls of both sides of the water tank (1), and a handle (3) is fixedly connected to the outer wall of one side of the water tank (1); A partition (24) is fixedly connected to the interior of the water tank (1), the rotating shaft (17) is located below the partition (24), a water pump (23) is fixedly connected to the top outer wall of the partition (24), a water pump (23) is fixedly connected to the top of the water pump (23), and one end of the water pump (6) extends to the top of the water tank (1); A spray assembly (5) is arranged on the top of the water tank (1), the spray assembly (5) is connected to the water pumping pipe (6), and there are two groups of the spray assemblies (5); A transmission assembly and a drive assembly (7) are provided on one side of the water tank (1), and the number of the drive assemblies (7) is two groups; The top outer wall of the water tank (1) is provided with a water injection hole, and a sealing plug (18) is inserted into the water injection hole.

2. A water spray dust suppression device for tunnel construction according to claim 1, characterized in that: The spray assembly (5) comprises a vertical pipe inserted into the circumferential outer wall of the water suction pipe (6); the top end of the vertical pipe is fixedly connected to a bellows (5004); the end of the bellows (5004) away from the vertical pipe is fixedly connected to a water guide pipe (5003); the end of the water guide pipe (5003) away from the bellows (5004) is inserted into a nozzle (5001); and the cross section of the nozzle (5001) is in the shape of a circular arc.

3. A water spray dust suppression device for tunnel construction according to claim 2, characterized in that: A group of first nozzles (8) are inserted into the circumferential outer wall of the nozzle pipe (5001) and are distributed in an arc shape at equal distances. The circumferential outer wall of the first nozzle (8) is rotatably connected to a baffle (9), and the baffle (9) is located directly above the first nozzle (8). The top outer wall of the baffle (9) is provided with dispersion grooves (11) distributed at equal distances. A spring (10) is fixedly connected to the outer wall of one side of the baffle (9), and the end of the spring (10) away from the baffle (9) is fixedly connected to the circumferential outer wall of the first nozzle (8).

4. A water spray dust suppression device for tunnel construction according to claim 3, characterized in that: The circumferential outer wall of the other nozzle (5001) is plugged with a second nozzle (19) distributed in an arc shape at equal distances, one end of the second nozzle (19) is fixedly connected to a diffusion plate (20), the circumferential inner wall of the diffusion plate (20) is fixedly connected to an atomizing plate (21) distributed in a circular shape at equal distances, the cross section of the atomizing plate (21) is in a broken line shape, and an outer wall on one side of the atomizing plate (21) is provided with atomizing grooves (22) distributed in equal distances.

5. A water spray dust suppression device for tunnel construction according to claim 4, characterized in that: The transmission assembly comprises a driving wheel (16) fixedly connected to the circumferential outer wall of the rotating shaft (17); the circumferential outer wall of the driving wheel (16) is drivingly connected to a driving belt (15); and the driving belt (15) is drivingly connected to a driven wheel (13).

6. A water spray dust suppression device for tunnel construction according to claim 5, characterized in that: A fixed frame (12) is fixedly connected to an outer wall of one side of the water tank (1), a first rotating column (14) is fixedly connected to an inner circumferential wall of the driven wheel (13), and the first rotating column (14) is rotatably connected to the fixed frame (12).

7. A water spray dust suppression device for tunnel construction according to claim 6, characterized in that: The driving assembly (7) comprises a second bevel gear (7009) fixedly connected to the circumferential outer wall of the first rotating column (14); the circumferential outer wall of the second bevel gear (7009) is meshed with the first bevel gear (7002); a first rotating rod (7001) is fixedly connected to the outer wall of one side of the first bevel gear (7002); an end of the first rotating rod (7001) away from the first bevel gear (7002) is rotatably connected to the fixed frame (12); and the circumferential outer wall of the first rotating rod (7001) is fixedly connected to the fixed frame (12). A fixed sleeve (7003), the circumferential outer wall of the fixed sleeve (7003) is fixedly connected to a crank (7004), one end of the crank (7004) away from the fixed sleeve (7003) is rotatably connected to a rotating seat (7005), the circumferential outer wall of the rotating seat (7005) is fixedly connected to a connecting rod (7006), one end of the connecting rod (7006) away from the rotating seat (7005) is rotatably connected to a connecting seat (7010), and one side of the connecting seat (7010) is fixedly connected to a gear ring (7008).

8. A water spray dust suppression device for tunnel construction according to claim 7, characterized in that: The circumferential outer wall of the nozzle (5001) is fixedly connected to an L-shaped rod (5002), and one end of the L-shaped rod (5002) away from the nozzle (5001) is fixedly connected to a ring plate (5006), and the circumferential outer wall of the ring plate (5006) is provided with a tooth groove (5007), and the ring plate (5006) is meshed with the gear ring (7008) through the tooth groove (5007).

9. A water spray dust suppression device for tunnel construction according to claim 8, characterized in that: A first gear plate (26) is fixedly connected to the circumferential outer wall of a group of the first rotating rods (7001), the first gear plate (26) is meshed with a second gear plate (28), a transverse plate (27) is fixedly connected to the outer wall of one side of the water tank (1), the first rotating rod (7001) is rotationally connected to the transverse plate (27), the circumferential inner wall of the second gear plate (28) is fixedly connected to the second rotating column (29), and another fixed sleeve (7003) is fixedly connected to the circumferential outer wall of the second rotating column (29).

10. A water spray dust suppression device for tunnel construction according to claim 9, characterized in that: A groove (7007) is provided on one side outer wall of the water tank (1), a positioning frame (25) is fixedly connected to one side outer wall of the water tank (1), and one end of the two groups of the first rotating rods (7001) and the first rotating column (14) are both rotatably connected to the positioning frame (25).

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