Auxiliary dust falling device in drilling process of advanced drilling machine

Abstract

The invention provides an auxiliary dust falling device in the drilling process of an advanced drilling machine, and relates to the field of dust falling devices, the auxiliary dust falling device comprises a positioning mounting frame, an audible and visual alarm, a water flow transfer box, a water flow conveying pipe, a positioning mounting ring, a conductive metal sheet and a leakage detection sponge; the audible and visual alarm is in bolt connection with the upper part of the positioning mounting frame; the water flow transfer box is in bolted connection with the inner side of the positioning mounting frame; the water flow conveying pipe is in bolted connection with the left side of the water flow transfer box; the positioning mounting ring is in threaded connection with the left side of the water flow transfer box; the number of the conductive metal sheets is two, and the two conductive metal sheets are fixedly connected to the front side and the rear side of the positioning installation ring respectively. According to the invention, the inconvenience of regular manual detection of the sealing performance of the connection part is avoided, a large amount of time is saved, and the problem that long time is consumed for regular detection of the sealing performance of the connection part is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust reduction devices, in particular to an auxiliary dust reduction device in the drilling process of a lead drill. BACKGROUND

[0002] A large amount of dust is generated in the drilling process of a lead drill, so an auxiliary dust reduction device needs to be provided on the lead drill. The auxiliary dust reduction device is mostly installed on the rack of the lead drill and is sleeved outside the drill rod. A typical structure comprises a water tank, a water pump, a water supply hose, a spray head mounting piece and an atomizing spray head. In the drilling process, the operator first turns on the power supply of the water pump. The water is filtered by a filter screen and then pressurized by the water pump. The water is delivered to the atomizing spray head through the water supply hose, so that the atomizing spray head sprays water mist outward. The water mist collides, traps and condenses with the dust generated by drilling, so that the dust particles increase in weight and settle, effectively reducing the dust, protecting the health and safety of the construction personnel, and reducing the dust concentration on the working surface by 60-80%. When the drill stops working, the drill bit power needs to be turned off, the residual dust needs to be cleaned by spraying for 1-2 minutes, and then the power supply of the water pump needs to be turned off.

[0003] For example, CN222306817U discloses an auxiliary dust reduction device in the drilling process of a lead drill, relating to the field of drilling dust reduction devices, comprising a separation box body; the separation box body is installed on the rack of the lead drill, and the air inlet of the separation box body is connected with a dust collection cylinder through a wind conveying pipe, and the upper end of the dust collection cylinder is provided with an L-shaped mounting plate; through the provision of the cleaning mechanism, when it is necessary to clean the debris covered on the surface of the dust filter screen, only the small motor needs to be started through the controller, and the debris covered on the surface of the dust filter screen can be cleaned away, so that it is not necessary to stop the machine for cleaning, and manual disassembly and cleaning through tools are not necessary, thereby improving the convenience of maintenance of the auxiliary dust reduction device; the problem that the traditional auxiliary dust reduction device can separate dust from air through the dust filter screen, but needs to be stopped for cleaning and disassembly and cleaning through tools when cleaning the surface of the dust filter screen, thereby reducing the convenience of maintenance, is solved.

[0004] However, the water supply hose is mostly fixedly connected with the spray head mounting piece through bolts, and the connection is sealed by a rubber pad. The rubber pad is easily aged, deformed or broken due to long-term impact of water flow, extrusion and high-frequency vibration of the drill, leading to sealing failure. After the rubber pad fails, the connection of the water supply hose is prone to leakage, causing waste of water resources. Therefore, the sealing property of the connection needs to be detected regularly, which not only causes a large labor burden of the workers, but also needs to consume a long time, thereby affecting the detection efficiency of the sealing property of the connection. SUMMARY

[0005] In view of this, the application provides a device for assisting dust reduction during drilling with an advance drill, which can automatically detect the sealing of the connection between the water supply hose and the spray head mounting, and when the sealing is ineffective due to aging, deformation or rupture of the rubber pad caused by long-term water flow impact, extrusion and high-frequency vibration of the drill, the leaked water can be absorbed by the leakage detection sponge, so that the two conductive metal sheets are connected, thereby triggering the audible and light alarm to issue an alarm, reminding the staff to replace the rubber pad in time, avoiding water resource waste caused by leakage, avoiding the inconvenience of regular manual detection of the sealing of the connection, saving a lot of time, reducing the labor burden of the staff, greatly improving the detection efficiency, the spray head protective cover and the protective net can effectively protect the water flow atomizing nozzle from being damaged by the impact of drill bits during drilling, prolonging the service life of the device, when the water flow impacts the water power driven fan blade, the limiting installation rotating ring and the water flow atomizing nozzle will rotate and make the water mist evenly sprayed out, expanding the coverage of the water mist and enhancing the adsorption effect on the dust generated during drilling, effectively reducing the dust, protecting the health and safety of the construction personnel, the limiting electromagnet can adjust the current size according to the rotating speed of the drill rod, thereby changing the magnetic force of the limiting metal plate, the limiting traction rod drives the limiting connecting rod to pull the water inlet baffle to slide and adjust the size of the water inlet, realizing real-time automatic adjustment of the spray amount according to the rotating speed of the drill bit, so that the spray amount matches the rotating speed of the drill bit, avoiding water resource waste while ensuring the dust reduction effect, and the reset elastic member and the reset scroll spring can automatically reset the water inlet baffle after the magnetic force decreases, ensuring stable operation of the device.

[0006] The application provides a device for assisting dust reduction during drilling with an advance drill, which specifically comprises: a positioning mounting frame, an audible and light alarm, a water flow transfer box, a water flow conveying pipe, a dust removal structure, an adjusting structure, a positioning mounting ring, conductive metal sheets and a leakage detection sponge; the audible and light alarm is bolted to the upper portion of the positioning mounting frame; the water flow transfer box is bolted to the inner side of the positioning mounting frame; the water flow conveying pipe is bolted to the left side of the water flow transfer box; the dust removal structure is arranged on the front side of the positioning mounting frame; the positioning mounting ring is threadedly connected to the left side of the water flow transfer box and is threadedly connected with the water flow conveying pipe; the conductive metal sheets are arranged in two, and the two conductive metal sheets are fixedly connected to the front and rear sides of the positioning mounting ring, respectively; the leakage detection sponge is bonded to the inner sides of the two conductive metal sheets; and the adjusting structure is arranged on the inner side of the water flow transfer box.

[0007] Further, the dust removal structure comprises a spray head protective cover; the spray head protective cover is bolted to the front side of the water flow transfer box; the front side of the spray head protective cover is fixedly connected with a protective net; and the end portion of the water flow conveying pipe is provided with a water tank, a water pump is bolted in the water tank, and the output port of the water pump is fixedly connected with the water flow conveying pipe.

[0008] Further, the dust removal structure further comprises a limiting installation swivel ring and a water flow atomizing nozzle; the limiting installation swivel ring is rotationally connected to the inner side of the water flow transfer box; the water flow atomizing nozzle is provided with a plurality of water flow atomizing nozzles which are circumferentially arrayed and bolted to the front side of the limiting installation swivel ring.

[0009] Further, the dust removal structure further comprises a water force driven fan blade; the water force driven fan blade is provided with a plurality of water force driven fan blades which are circumferentially arrayed and fixedly connected to the inner side of the limiting installation swivel ring; the water force driven fan blade is in an arc plate structure; the inclination angle between the water force driven fan blade and the limiting installation swivel ring is between thirty degrees and fifty degrees.

[0010] Further, the adjusting structure comprises a water inlet baffle; the water inlet baffle is provided with two water inlet baffles which are both slidingly connected to the left side of the water flow transfer box; the middle part of each of the two water inlet baffles is provided with an arc-shaped groove.

[0011] Further, the adjusting structure further comprises a first positioning installation block and a reset elastic member; the first positioning installation block is provided with four first positioning installation blocks which are evenly distributed and fixedly connected to the left side of the water flow transfer box; the reset elastic member is provided with four reset elastic members; the two water inlet baffles are elastically connected to the four first positioning installation blocks through the four reset elastic members.

[0012] Further, the adjusting structure further comprises a limiting connection rod and a limiting traction rod; the limiting connection rod is provided with four limiting connection rods which are respectively hinged to the left and right sides of the two water inlet baffles; the limiting traction rod is provided with two limiting traction rods; the two ends of the two limiting traction rods are respectively hinged to the four limiting connection rods.

[0013] Further, the adjusting structure further comprises a limiting installation shaft; the limiting installation shaft is provided with two limiting installation shafts which are both rotationally connected to the left side of the water flow transfer box; the two limiting traction rods are respectively rotationally connected to the outer sides of the two limiting installation shafts.

[0014] Further, the adjusting structure further comprises a limiting metal plate and a reset volute spring; the limiting metal plate is provided with two limiting metal plates which are respectively fixedly connected to the outer sides of the two limiting traction rods; the reset volute spring is provided with two reset volute springs; the two limiting traction rods are respectively elastically connected to the two limiting installation shafts through the two reset volute springs.

[0015] Further, the adjusting structure further comprises a second positioning mounting block and a limiting electromagnet; the second positioning mounting block is provided with two, and the two second positioning mounting blocks are fixedly connected to the left side of the water flow transfer box; the limiting electromagnet is provided with two, and the two limiting electromagnets are fixedly connected to the inner sides of the two second positioning mounting blocks.

[0016] Beneficial effects The present application can automatically detect the sealing of the connection between the water supply hose and the spray head mounting member. When the rubber pad is aged, deformed or broken due to long-term water flow impact, extrusion and rig drill high-frequency vibration, leading to sealing failure, the leaked water will be absorbed by the leakage detection sponge, making the two conductive metal sheets connected, thereby triggering the audible and light alarm to issue an alarm, reminding the staff to replace the rubber pad in time, avoiding water resource waste caused by leakage, avoiding the inconvenience of regular manual detection of the sealing of the connection, saving a lot of time, reducing the labor burden of the staff, greatly improving the detection efficiency, the spray head protective cover and the protective net can effectively protect the water flow atomizing nozzle from being damaged by the impact of drill chips, prolonging the service life of the device, when the water flow impacts the water power driven fan blade, the limiting installation rotating ring and the water flow atomizing nozzle will rotate and make the water mist evenly sprayed, expanding the coverage of the water mist and enhancing the adsorption effect on the dust generated during the drilling process, effectively reducing the dust, protecting the health and safety of the construction personnel, the limiting electromagnet can adjust the current size according to the rotating speed of the drill rod, thereby changing the magnetic force of the limiting metal plate, the limiting traction rod drives the limiting connecting rod to pull the water inlet baffle to slide and adjust the size of the water inlet, realizing real-time automatic adjustment of the spray amount according to the rotating speed of the drill bit, matching the spray amount with the rotating speed of the drill bit, ensuring the dust reduction effect while avoiding water resource waste, and the reset elastic member and the reset scroll spring can automatically reset the water inlet baffle after the magnetic force decreases, ensuring stable operation of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present application, and are not a limitation of the present application.

[0019] In the drawings: Figure 1 is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 is a schematic diagram of the positional relationship of the positioning mounting bracket, the audible and light alarm and the spray head protective cover.

[0021] Figure 3 is a schematic diagram of the positional relationship of the water flow transfer box, the water flow conveying pipe and the positioning mounting ring.

[0022] Figure 4 Figure 1 is a schematic diagram of the positional relationship of the water flow transfer box, the limit installation rotating ring and the water flow atomizing nozzle of the present application.

[0023] Figure 5 Figure 2 is a schematic diagram of the positional relationship of the limit installation rotating ring and the water force driven fan blade of the present application.

[0024] Figure 6 Figure 3 is a schematic diagram of the split structure of the water flow transfer box, the water flow conveying pipe and the positioning installation ring of the present application.

[0025] Figure 7 Figure 4 is a schematic diagram of the positional relationship of the water flow transfer box and the water inlet baffle of the present application.

[0026] Figure 8 Figure 5 is a schematic diagram of the connection relationship of the water inlet baffle, the limit connection rod and the limit traction rod of the present application.

[0027] Figure 9 Figure 6 is a schematic diagram of the split structure of the limit installation shaft and the limit traction rod of the present application.

[0028] List of reference signs 1, positioning installation frame; 2, audible and visual alarm; 3, water flow transfer box; 301, nozzle protection cover; 302, limit installation rotating ring; 303, water flow atomizing nozzle; 304, water force driven fan blade; 305, first positioning installation block; 306, reset elastic member; 307, water inlet baffle; 308, limit connection rod; 309, limit installation shaft; 310, reset volute spring; 311, limit traction rod; 312, second positioning installation block; 313, limit electromagnet; 314, limit metal plate; 4, water flow conveying pipe; 5, positioning installation ring; 6, conductive metal sheet; 7, leakage detection sponge. DETAILED DESCRIPTION

[0029] Example 1: Please refer to Figures 1 to 6 shown: The present application provides a kind of auxiliary dust falling device in advance drilling machine drilling process, including positioning installation frame 1, audible and visual alarm 2, water flow transfer box 3, water flow conveying pipe 4, dust removal structure, positioning installation ring 5, conductive metal sheet 6 and leakage detection sponge 7;Audible and visual alarm 2 bolt connection is positioned in the upper portion of installation frame 1;Water flow transfer box 3 bolt connection is positioned in the inner side of installation frame 1;Water flow conveying pipe 4 bolt connection is positioned in the left side of water flow transfer box 3;Dust removal structure is positioned in the front side of positioning installation frame 1;Positioning installation ring 5 is screw connection in the left side of water flow transfer box 3, positioning installation ring 5 is screw connection with water flow conveying pipe 4;Conductive metal sheet 6 is provided with two, two conductive metal sheets 6 are respectively fixedly connected in the front and back of positioning installation ring 5;Leakage detection sponge 7 is bonded in the inner side of two conductive metal sheets 6.

[0030] Wherein, the dust removal structure comprises a spray head protective cover 301; the spray head protective cover 301 is bolted on the front side of the water flow transfer box 3; the front side of the spray head protective cover 301 is fixedly connected with a protective net; the end of the water flow conveying pipe 4 is provided with a water tank, a water pump is bolted in the water tank, and the output port of the water pump is fixedly connected with the water flow conveying pipe 4.

[0031] Wherein, the dust removal structure further comprises a limiting installation swivel ring 302 and a water flow atomization spray head 303; the limiting installation swivel ring 302 is rotationally connected on the inner side of the water flow transfer box 3; the water flow atomization spray head 303 is provided with a plurality of water flow atomization spray heads 303 which are circumferentially arrayed and bolted on the front side of the limiting installation swivel ring 302.

[0032] Wherein, the dust removal structure further comprises a water power driven fan blade 304; the water power driven fan blade 304 is provided with a plurality of water power driven fan blades 304 which are circumferentially arrayed and fixedly connected on the inner side of the limiting installation swivel ring 302, the water power driven fan blade 304 is in an arc plate structure, and the oblique angle between the water power driven fan blade 304 and the limiting installation swivel ring 302 is between thirty degrees and fifty degrees.

[0033] The specific use and effect of the embodiment: the positioning installation frame 1 is vertically fixed on the front end of the frame of the advance drilling machine by bolts, at a distance of one point five meters to two meters from the drilling operation surface, to ensure that the central axis of the positioning installation frame 1 is parallel to the shaft center of the drill rod, to ensure the symmetry of the subsequent spray coverage, at this time the water pump is started to make the water pump convey the water in the water tank to the water flow transfer box 3 through the water flow conveying pipe 4, at this time the water flow will impact the water power driven fan blade 304, the water power driven fan blade 304 is driven to rotate by the water impact, the limiting installation swivel ring 302 is rotated when the water power driven fan blade 304 is rotated, the water flow atomization spray head 303 is rotated at the same time, and the water flow is sprayed in mist after passing through the water flow atomization spray head 303, after the spray lasts for thirty seconds and the water mist barrier is formed in the orifice area, the drill rod is started to rotate to start the drilling operation, the dust generated by the drilling is contacted with the water mist, and is quickly settled under the effects of inertial collision, interception and condensation, to realize the dust reduction in the drilling process, the spray head protective cover 301 can protect the water flow atomization spray head 303, to avoid the impact of the gravel generated during the drilling on the water flow atomization spray head 303, when the rubber pad at the connection between the water flow conveying pipe 4 and the water flow transfer box 3 is leaked due to aging, the leaked liquid is first absorbed by the leakage detection sponge 7, the resistance value of the leakage detection sponge 7 is greatly reduced after absorbing the moisture, to make the two conductive metal sheets 6 on the inner side of the positioning installation ring 5 conductive, to form a path for the control circuit of the audible and visual alarm 2, to issue a continuous buzzing alarm and flashing red light, to remind the operator to stop and maintain, to replace the rubber pad in time, the positioning installation ring 5 is only rotated counterclockwise during the maintenance, and the device can be used again after the invalid rubber pad is replaced, which is simple and convenient.

[0034] Embodiment two: AsFigures 7 to 9 As shown: Based on Embodiment 1, an adjustment structure is also included; the adjustment structure is located inside the water flow transfer box 3.

[0035] The adjustment structure includes an inlet baffle 307; there are two inlet baffles 307, and both inlet baffles 307 are slidably connected to the left side of the water flow transfer box 3; an arc-shaped groove is provided in the middle of both inlet baffles 307.

[0036] The adjustment structure also includes a first positioning mounting block 305 and a reset elastic element 306; four first positioning mounting blocks 305 are provided, and the four first positioning mounting blocks 305 are evenly distributed and fixedly connected to the left side of the water flow transfer box 3; four reset elastic elements 306 are provided, and the two inlet baffles 307 are elastically connected to the four first positioning mounting blocks 305 through the four reset elastic elements 306.

[0037] The adjustment structure also includes a limiting connecting rod 308 and a limiting traction rod 311; there are four limiting connecting rods 308, which are respectively hinged to the left and right sides of the two inlet baffles 307; there are two limiting traction rods 311, and the two ends of the two limiting traction rods 311 are respectively hinged to the four limiting connecting rods 308.

[0038] The adjustment structure also includes a limiting installation shaft 309; there are two limiting installation shafts 309, both of which are rotatably connected to the left side of the water flow transfer box 3, and two limiting traction rods 311 are rotatably connected to the outside of the two limiting installation shafts 309 respectively.

[0039] The adjustment structure also includes a limiting metal plate 314 and a reset spiral spring 310; two limiting metal plates 314 are provided, and the two limiting metal plates 314 are respectively fixedly connected to the outside of the two limiting traction rods 311; two reset spiral springs 310 are provided, and the two limiting traction rods 311 are elastically connected to the two limiting mounting shafts 309 through the two reset spiral springs 310 respectively.

[0040] The adjustment structure also includes a second positioning mounting block 312 and a limiting electromagnet 313; there are two second positioning mounting blocks 312, and both second positioning mounting blocks 312 are fixedly connected to the left side of the water flow transfer box 3; there are two limiting electromagnets 313, and the two limiting electromagnets 313 are fixedly connected to the inner side of the two second positioning mounting blocks 312 respectively.

[0041] The specific use and role of the embodiment are as follows: when the drill rod is in operation, the control circuit of the limiting electromagnet 313 in the second positioning mounting block 312 adjusts the current flowing through the limiting electromagnet 313 according to the rotating speed of the drill rod. When the current of the limiting electromagnet 313 increases, the magnetic field strength is enhanced, the attraction to the limiting metal plate 314 is increased, the torque of the reset spiral spring 310 is overcome, the limiting traction rod 311 swings around the limiting mounting shaft 309, the limiting traction rod 311 swings and pulls the limiting connecting rod 308 to swing, the limiting connecting rod 308 swings and pulls the water inlet baffle 307 to slide, so as to change the size of the water inlet and realize dynamic adjustment of the spraying amount. The reset spiral spring 310 continuously applies a reverse force to the limiting traction rod 311. When the rotating speed of the drill rod decreases, the current of the limiting electromagnet 313 decreases and the magnetic force is weakened, so that the limiting traction rod 311 is automatically reset under the push of the reset spiral spring 310. At this time, the water inlet baffle 307 also slides outward and approaches the first positioning mounting block 305 under the action of the reset elastic member 306. The double-reset mechanism of the reset spiral spring 310 and the reset elastic member 306 ensures the stability of the adjustment process. After the drilling operation is completed, the drill rod power is first turned off, the spraying is continuously performed for two minutes to clean the residual dust in the hole, and then the water pump power is turned off. At this time, the reset spiral spring 310 and the reset elastic member 306 reset the water inlet baffle 307 to the initial state, ready for the next operation.

[0042] In this paper, the following points need attention: 1. The drawings of the embodiment only involve the structures involved in the embodiment, and other structures can refer to the general design.

[0043] 2. In the case of no conflict, the features in the embodiment and the embodiment can be combined to obtain a new embodiment.

[0044] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for assisting dust reduction in the drilling process of an advance drill rig, comprising a positioning mounting frame (1), an audible and light alarm (2), a water flow transfer box (3), a water flow delivery pipe (4), a dust removal structure, an adjusting structure, a positioning mounting ring (5), a conductive metal sheet (6), and a leakage detection sponge (7); the audible and light alarm (2) is bolted to the upper part of the positioning mounting frame (1); characterized in that: The water flow transfer box (3) is bolted to the inner side of the positioning mounting frame (1); the water flow conveying pipe (4) is bolted to the left side of the water flow transfer box (3); the dust removal structure is arranged on the front side of the positioning mounting frame (1); the positioning mounting ring (5) is threadedly connected to the left side of the water flow transfer box (3), and the positioning mounting ring (5) is threadedly connected with the water flow conveying pipe (4); the conductive metal sheets (6) are provided in two, and the two conductive metal sheets (6) are fixedly connected to the front and rear sides of the positioning mounting ring (5) respectively; the leakage detection sponge (7) is bonded to the inner sides of the two conductive metal sheets (6); and the adjusting structure is arranged on the inner side of the water flow transfer box (3).

2. The device according to claim 1, wherein the device is used in the process of drilling by a leading drill rig. The dust removal structure comprises a spray head protective cover (301); the spray head protective cover (301) is bolted to the front side of the water flow transfer box (3); the front side of the spray head protective cover (301) is fixedly connected with a protective net; and the end of the water flow conveying pipe (4) is provided with a water tank, and a water pump is bolted to the water tank, and the output port of the water pump is fixedly connected with the water flow conveying pipe (4).

3. A device for reducing dust in the process of drilling with a forward drill rig as claimed in claim 2, characterized in that: The dust removal structure further comprises a limiting installation rotating ring (302) and water flow atomizing spray heads (303); the limiting installation rotating ring (302) is rotatably connected to the inner side of the water flow transfer box (3); and the water flow atomizing spray heads (303) are provided in a plurality of, and the plurality of water flow atomizing spray heads (303) are circumferentially arrayed and bolted to the front side of the limiting installation rotating ring (302).

4. The device according to claim 3, wherein: The dust removal structure further comprises water power driven fan leaves (304); the water power driven fan leaves (304) are provided in a plurality of, and the plurality of water power driven fan leaves (304) are circumferentially arrayed and fixedly connected to the inner side of the limiting installation rotating ring (302), the water power driven fan leaves (304) are in an arc plate structure, and the inclination angle between the water power driven fan leaves (304) and the limiting installation rotating ring (302) is between thirty degrees and fifty degrees.

5. The device according to claim 1, wherein: the device is used in the process of drilling with a forward drill rig. The adjusting structure comprises water inlet baffle plates (307); the water inlet baffle plates (307) are provided in two, and the two water inlet baffle plates (307) are both slidably connected to the left side of the water flow transfer box (3); and the middle portions of the two water inlet baffle plates (307) are both provided with arc grooves.

6. A device for reducing dust in the process of drilling with a forward drill rig as claimed in claim 5, characterized in that: The adjusting structure further comprises first positioning mounting blocks (305) and reset elastic members (306); the first positioning mounting blocks (305) are provided in four, and the four first positioning mounting blocks (305) are uniformly distributed and fixedly connected to the left side of the water flow transfer box (3); and the reset elastic members (306) are provided in four, and the two water inlet baffle plates (307) are elastically connected with the four first positioning mounting blocks (305) through the four reset elastic members (306).

7. A device for reducing dust in the process of drilling with a forward drill rig as claimed in claim 6, characterized in that: The adjusting structure further comprises limiting connecting rods (308) and limiting traction rods (311); the limiting connecting rods (308) are provided in four, and the four limiting connecting rods (308) are respectively hinged on the left and right sides of the two water inlet flaps (307); the limiting traction rods (311) are provided in two, and the two limiting traction rods (311) are respectively hinged at the two ends of the four limiting connecting rods (308).

8. A device for reducing dust in the process of drilling with a forward drill rig according to claim 7, characterized in that: The adjusting structure further comprises limiting installation shafts (309); the limiting installation shafts (309) are provided in two, and the two limiting installation shafts (309) are both rotationally connected on the left side of the water flow transfer box (3); the two limiting traction rods (311) are respectively rotationally connected on the outer sides of the two limiting installation shafts (309).

9. A device for reducing dust in the process of drilling with a forward drill rig according to claim 8, characterized in that: The adjusting structure further comprises limiting metal plates (314) and reset volute springs (310); the limiting metal plates (314) are provided in two, and the two limiting metal plates (314) are respectively fixedly connected on the outer sides of the two limiting traction rods (311); the reset volute springs (310) are provided in two, and the two limiting traction rods (311) are respectively elastically connected with the two limiting installation shafts (309) through the two reset volute springs (310).

10. The device according to claim 9, wherein the device is used in the process of drilling with a forward drill rig. The adjusting structure further comprises second positioning installation blocks (312) and limiting electromagnets (313); the second positioning installation blocks (312) are provided in two, and the two second positioning installation blocks (312) are both fixedly connected on the left side of the water flow transfer box (3); the limiting electromagnets (313) are provided in two, and the two limiting electromagnets (313) are respectively fixedly connected on the inner sides of the two second positioning installation blocks (312).

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