Pneumatic drill for drilling unconsolidated formation and use method of pneumatic drill

Abstract

The invention belongs to the technical field of well drilling equipment, and particularly relates to a pneumatic drill for unconsolidated formation drilling and a using method of the pneumatic drill. An air inlet is formed in the top of the pneumatic drill body; a drill bit is mounted at the bottom of the pneumatic drill body; a first supporting plate is fixedly connected to the middle of the pneumatic drill body. Two groups of first spring rods are fixedly connected to the top of the first supporting plate; the top of the output end of the first spring rod is fixedly connected with a connecting frame. Two groups of pressing plates are arranged in a matched manner, so that the drill bit and the ground can be in a vertical state when the whole pneumatic drill body performs drilling work, and the problem that the pneumatic drill body inclines when being used due to the fact that a worker is unfamiliar with the performance of the pneumatic drill body or clamping forces at the two ends of the drill bit are unbalanced is solved; and the multiple sets of steel thorns are arranged, so that the road holding force between the two sets of pressing plates and the ground can be improved, and the problem of shaking is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling equipment, in particular to an air drill for drilling in loose formations and a use method thereof. Background Art

[0002] Loose strata are mainly composed of soil, sand, gravel, pebble layers, etc., belonging to the Quaternary and Neogene strata. This type of strata is easily affected by weathering or alteration, and is prone to loosening and breaking when encountering water. It is easy to be eroded and dissolved.

[0003] In order to improve the drilling efficiency of loose strata, workers usually use pneumatic drills, which are efficient and convenient. They use high-pressure gas as a power source and convert the pressure energy of the gas into mechanical energy through key components such as cylinders and reduction gearboxes, thereby completing the soil drilling steps.

[0004] Through long-term observation, it is found that when using the existing air drill, some workers are not familiar with the performance of the drilling rig or the clamping force at both ends of the drill bit is unbalanced, which easily causes the air drill as a whole to swing or tilt with the ground, resulting in poor drilling quality due to the non-vertical drill bit, thus affecting subsequent work; therefore, in view of the above problems, an air drill for drilling in loose formations and a method for using the same are proposed. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention provides an air drill for drilling in loose formations and a method for using the same.

[0006] The technical solution adopted by the present invention to solve its technical problems is: an air drill for drilling in loose strata and a method of using the air drill described in the present invention include an air drill body; an air inlet is installed on the top of the air drill body; a drill bit is installed at the bottom of the air drill body; a first support plate is fixedly connected to the middle of the air drill body; two groups of first spring rods are fixedly connected to the top of the first support plate; a connecting frame is fixedly connected to the top of the output end of the first spring rod; a pressure plate is fixedly connected to the bottom wall of the connecting frame, and the pressure plate is slidably arranged in the middle of the air drill body; a plurality of groups of steel spikes are fixedly connected to the bottom of the pressure plate; when working, the staff can connect the air inlet with the external air inlet pipe, so that the outside world can continuously input gas into the air drill body and drive the drill bit to rotate rapidly. By arranging two groups of pressure plates in the middle of the air drill body, the staff can make the two groups of pressure plates vertical to the geology to be drilled, and press down the air drill body as a whole, so that the plurality of groups of steel spikes sink into the ground, and the raised drill bit The end can be synchronously contacted with the ground, cooperate with the high-speed rotation characteristics of the drill bit and complete the geological drilling work. When the drill bit is rotating, the staff can continuously press down the entire air drill body, and the pressure plate can fix and support the output end of the first spring rod. When the air drill body descends, the output end position of the first spring rod can be stretched and leaked. After the air drill body completes drilling, the force pressing down the entire air drill body is released, and the pressure plate is reset under the elastic force of multiple groups of first spring rods. This step, combined with the two groups of pressure plates set, can make the air drill body as a whole be in a vertical state with the drill bit and the ground during drilling work, reducing the problem of the air drill body being tilted when it can be used due to the staff's unfamiliarity with the performance of the air drill body or the unbalanced clamping force at both ends of the drill bit, thereby improving the accuracy of soil drilling, and the multiple groups of steel spikes set can improve the grip between the two groups of pressure plates and the ground, reducing the problem of shaking.

[0007] Preferably, a connecting rod is fixedly connected to the side wall of the output end of the first spring rod; a second supporting plate is fixedly connected to the bottom of the connecting rod; a piston plate is fixedly connected to the top of the second supporting plate; two sets of collectors are fixedly connected to the side wall of the air drill body; the piston plate is slidably arranged on the inner wall of the collector; a water pipe is fixedly connected to the middle of the collector; a liquid outlet pipe is fixedly connected to the end of the water pipe, and the liquid outlet pipe, the water pipe and the collector are connected; a valve is fixedly connected to the inner wall of the collector, and the valve is arranged near the output end of the water pipe; two sets of liquid storage tanks are fixedly connected to the side wall of the air drill body, and the liquid storage tanks are located The top of the collector is arranged; the end of the liquid storage tank is connected to the bottom side wall of the collector; the bottom of the liquid storage tank is threadedly connected with a cover plate; when working, a liquid storage tank is arranged on the outer wall of the air drill body. At this time, the staff can rotate the cover plate and open it, and then add a proper amount of drilling fluid to the inner wall of the liquid storage tank. When the drill bit is sunken into the soil, the piston plate can be separated from the outflow port at the bottom of the liquid storage tank, and the liquid is injected into the collector under the action of the water pressure of the upper liquid storage tank, and the liquid inside the collector can be blocked by the valve, and the subsequent staff can press down the entire air drill body to When the body is in the state of being lifted up, the collector and the liquid storage tank can be lowered synchronously as a whole, and the stationary piston plate can slide on the inner wall of the collector, and can first pass over the two groups of liquid storage tank ports during the sliding process to seal the liquid storage tank, and the piston plate can squeeze out the liquid inside the collector after continuing to squeeze, and the valve can be opened after being impacted, so that the liquid passes through the water pipe and the middle part of the liquid outlet pipe, and can be discharged from the inclined small hole at the end of the liquid outlet pipe, and transferred to the middle area of ​​the drill bit in turn, and then the piston plate is reset again under the action of the first spring rod and is separated from the two liquid storage tanks. When the end is detached, the liquid inside the collector can be replenished again, and the process can be repeated in sequence. This step, in conjunction with the liquid sprayed from the end of the liquid outlet pipe, can lubricate and cool the middle part of the drill bit, thereby reducing the high temperature generated by friction on the drill bit, which may cause overheating and damage, and improve the service life of the drill bit. The liquid storage tank can continuously add materials to the collector, reducing the trouble of the staff having to add materials to the collector multiple times. The valve can directly discharge the liquid from the liquid storage tank when liquid is added to the inside of the valve.

[0008] Preferably, two groups of sliding rods are slidably connected to the middle of the liquid outlet pipe; a shielding plate is fixedly connected to the end of the sliding rod, and the middle of the shielding plate is arranged in an arc shape; a magnetic block is fixedly connected to the other end of the sliding rod; a cleaning sheet is fixedly connected to the middle of the magnetic block; an iron sheet is fixedly connected to the inner wall of the liquid outlet pipe, and the iron sheet and the magnetic block are arranged to attract each other; during operation, a sliding rod is arranged in the middle of the liquid outlet pipe, and after the subsequent use of the liquid outlet pipe is completed, the staff will squeeze the ends of the two groups of shielding plates inward in turn, so that after the cleaning sheet is completely separated from the magnetic block, the iron sheet that continues to slide can be adjusted according to the flow of liquid. The impurities are cleaned from the small hole in the middle of the liquid outlet pipe, and after the two groups of magnetic blocks continue to move and approach each other, they can be fixed with the suction force generated, and the arc-shaped baffle plate can also protect the outside of the liquid outlet pipe. This step, in conjunction with the cleaning sheet, can improve the cleanliness of the inner wall of the liquid outlet pipe after use, and reduce the problem of blockage caused by long-term cleaning. The middle of the liquid outlet pipe can be shielded and stored under the action of the baffle plate, and the iron sheet and two groups of magnetic blocks that can attract each other are provided to improve the stability of the liquid outlet pipe when it is in use or placed.

[0009] Preferably, the outer wall of the pressure plate is fixedly connected to a frame; a movable rod is rotatably connected to the middle part of the frame; a counterweight is fixedly connected to the middle part of the movable rod; and the outer wall of the pressure plate is fixedly connected to the counterweight; during operation, by providing a frame on the outer wall of the pressure plate, when the pressure plate as a whole moves, the movable rod and the counterweight can swing in the middle part of the frame under the action of inertia, and then collide with the middle area of ​​the elastic sheet, thereby generating a vibration force. This step cooperates with the vibration force generated by the impact of the counterweight to reduce the amount of impurities attached to the surface of the pressure plate and the steel thorns, and improves the problem of subsequent continuous cleaning. In addition, the elastic sheet provided can further amplify the vibration force.

[0010] Preferably, two groups of elastic parts are fixedly connected to the outer wall of the pressure plate; the ends of the elastic parts are fixedly connected to the limiting ropes, and the middle part of the counterweight body is arranged on the inner wall of the limiting rope; during operation, by arranging the elastic part in the middle part of the pressure plate, when the subsequent staff takes or turns over the air drill body as a whole, the middle part of the rotating counterweight body can first contact the limiting rope and stretch the middle parts of the two groups of elastic parts, and then under the reaction of the two groups of elastic parts, the counterweight body frequently collides with the middle part of the elastic sheet. This step cooperates with the setting of the limiting rope to limit the movement trajectory of the counterweight body, reduce the problem of its excessive swing amplitude and subsequent jamming, and the set elastic part can increase the frequency of the counterweight body colliding with the middle part of the elastic sheet.

[0011] Preferably, an observation plate is fixedly connected to the middle of the liquid storage tank; a scale is fixedly connected to the outer wall of the liquid storage tank, and the scale is arranged near the observation plate; during operation, by arranging an observation plate in the middle of the liquid storage tank, subsequent staff can visually observe the storage amount of liquid inside the liquid storage tank through the transparent observation plate, and record it with the help of the set scale. Under the action of the observation plate, this step can improve the accuracy of the staff's judgment on the amount of liquid inside the liquid storage tank, reduce the problem of insufficient spraying liquid at the end of the liquid outlet pipe due to less liquid content, and improve the recording accuracy under the action of the scale.

[0012] Preferably, a sealing strip is fixedly connected to the outer wall of the liquid outlet pipe, and the inner wall of the sealing strip is not in contact with the sliding rod; when working, a sealing strip made of soft material is arranged on the side wall of the liquid outlet pipe, and the sealing strip can reinforce and seal the connection gap between the sliding rod and the liquid outlet pipe. Under the action of the sealing strip, this step can reduce the loosening of the sliding rod after long-term repeated sliding, so that the side wall connection of the liquid outlet pipe leaks when it is in use.

[0013] A method for using a loose formation drilling air drill, the method being applicable to the above-mentioned loose formation drilling air drill, the method comprising the following steps:

[0014] S1: The air drill body needs to be taken out from the tool box first, and the external air pipe can continuously input gas into the air drill body. At the same time, two sets of pressure plates and multiple sets of steel spikes are vertically contacted with the geological ground, and the top of the air drill body is pressed down;

[0015] S2: When the air drill body is pressed down, the piston plate can transfer the liquid in the collector to the output end of the liquid outlet pipe, and spray it from the end of the liquid outlet pipe to the middle area of ​​the drill bit. After the piston plate is reset downward, the liquid storage tank can fill the material into the air drill body again. At the same time, the two sets of shaking counterweights cooperate with the limit ropes set to continuously hit the middle of the pressure plate.

[0016] S3: After the subsequent drilling is completed, the ends of the two sets of shielding plates can be pushed in turn to shield the output end of the liquid outlet pipe, and the cleaning sheet can clean the inner wall area of ​​the liquid outlet pipe until the two sets of magnetic blocks are in contact and fixed, and then the air drill body can be stored in the tool box again.

[0017] Preferably, the bottom of the pressure plate proposed in S1 is made of polyvinyl chloride material, so that when the air drill body is pressed down as a whole, the polyvinyl chloride material can be in deep contact with the ground. Combined with its corrosion resistance, it can reduce the corrosion of the pressure plate by moist soil, facilitating subsequent cleaning work.

[0018] Beneficial effects of the present invention:

[0019] The present invention provides an air drill for drilling in loose strata and a method for using the same. By cooperating with two groups of pressure plates, the air drill body as a whole can be in a vertical state with the drill bit and the ground during drilling work, thereby reducing the problem of the air drill body tilting when in use due to workers' unfamiliarity with the performance of the air drill body or unbalanced clamping force at both ends of the drill bit, thereby improving the accuracy of soil drilling. In addition, the multiple groups of steel spikes can improve the grip between the two groups of pressure plates and the ground, thereby reducing the problem of shaking.

[0020] The present invention provides an air drill for drilling in loose formations and a method for using the same. Liquid sprayed from the end of a liquid outlet pipe can be used to lubricate and cool the middle of the drill bit, thereby reducing the high temperature of the drill bit caused by friction, which may lead to overheating and damage, and prolonging the service life of the drill bit. A liquid storage tank can be provided to continuously add materials to a collector, thereby reducing the trouble of workers having to add materials to the collector multiple times. A valve can be provided to discharge liquid directly when liquid is added to the valve from the liquid storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the pressing plate structure in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the liquid storage tank in the present invention;

[0025] Figure 4 for Figure 3 A magnified image of point A;

[0026] Figure 5 It is a schematic diagram of the shielding plate structure in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the counterweight body in the present invention;

[0028] Figure 7 It is a flow chart of the method in the present invention.

[0029] Legend:

[0030] 1. Air drill body; 11. Air inlet; 12. Drill bit; 13. First support plate; 14. First spring rod; 15. Connecting frame; 16. Pressure plate; 17. Steel spike; 2. Connecting rod; 21. Second support plate; 22. Piston plate; 23. Collector; 24. Water pipe; 25. Liquid outlet pipe; 26. Valve; 27. Liquid storage tank; 28. Cover plate; 3. Sliding rod; 31. Shielding plate; 32. Magnetic block; 33. Cleaning sheet; 34. Iron sheet; 4. Frame; 41. Movable rod; 42. Counterweight; 43. Elastic sheet; 5. Elastic member; 51. Limiting rope; 6. Observation plate; 61. Scale; 7. Sealing strip. DETAILED DESCRIPTION

[0031] The following will be combined with the 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 without creative work are within the scope of protection of the present invention.

[0032] Specific examples are given below.

[0033] like Figure 1-6As shown, an air drill for drilling in loose formations and a method for using the same include an air drill body 1; an air inlet 11 is installed on the top of the air drill body 1; a drill bit 12 is installed on the bottom of the air drill body 1; a first support plate 13 is fixedly connected to the middle of the air drill body 1; two groups of first spring rods 14 are fixedly connected to the top of the first support plate 13; a connecting frame 15 is fixedly connected to the top of the output end of the first spring rod 14; a pressing plate 16 is fixedly connected to the bottom wall of the connecting frame 15, and the pressing plate 16 is slidably arranged in the middle of the air drill body 1; The bottom of the pressure plate 16 is fixedly connected with a plurality of steel spikes 17; when working, the staff can connect the air inlet 11 with the air inlet pipe outside, so that the outside can continuously input gas into the inside of the air drill body 1, and drive the drill bit 12 to rotate quickly. By setting two sets of pressure plates 16 in the middle of the air drill body 1, the staff can vertically connect the two sets of pressure plates 16 with the geology to be drilled, and press down the air drill body 1 as a whole, so that the plurality of steel spikes 17 sink into the ground, and the protruding end of the drill bit 12 can be synchronously rotated. The drill bit 12 is in contact with the ground, and the drilling work on the geology is completed by cooperating with the high-speed rotation characteristic of the drill bit 12. When the drill bit 12 is rotating, the staff can continuously press down the air drill body 1 as a whole, and the pressure plate 16 can fix and support the output end of the first spring rod 14. When the air drill body 1 descends, the output end position of the first spring rod 14 can be stretched and exposed. After the air drill body 1 completes the drilling, the force pressing down the air drill body 1 as a whole is released, and the pressure plate 16 is reset under the elastic force of the multiple groups of first spring rods 14. This step cooperates with the two groups of pressure plates 16 set, so that the air drill body 1 as a whole can be in a vertical state with the ground when the drilling work is carried out, reducing the problem of the air drill body 1 tilting when it can be used due to the staff's unfamiliarity with the performance of the air drill body 1 or the unbalanced clamping force at both ends of the drill bit 12, thereby improving the accuracy of soil drilling, and the multiple groups of steel spikes 17 set can improve the grip between the two groups of pressure plates 16 and the ground, reducing the problem of shaking.

[0034] like Figure 1-5As shown, the output end side wall of the first spring rod 14 is fixedly connected to a connecting rod 2; the bottom of the connecting rod 2 is fixedly connected to a second support plate 21; the top of the second support plate 21 is fixedly connected to a piston plate 22; the side wall of the air drill body 1 is fixedly connected to two sets of collectors 23; the piston plate 22 is slidably arranged on the inner wall of the collector 23; the middle of the collector 23 is fixedly connected to a water pipe 24; the end of the water pipe 24 is fixedly connected to a liquid outlet pipe 25, and the liquid outlet pipe 25, the water pipe 24 and the collector 23 are connected; the inner wall of the collector 23 is fixedly connected to a valve 26, and the valve 26 is arranged near the output end of the water pipe 24; the side wall of the air drill body 1 is fixedly connected to two sets of liquid storage tanks 2 7, and the liquid storage tank 27 is arranged at the top of the collector 23; the end of the liquid storage tank 27 is connected to the bottom side wall of the collector 23; the bottom of the liquid storage tank 27 is threadedly connected with a cover plate 28; when working, by arranging the liquid storage tank 27 on the outer wall of the air drill body 1, the staff can rotate the cover plate 28 and open it, and then add a proper amount of drilling fluid to the inner wall of the liquid storage tank 27, so that when the drill bit 12 is sunk into the soil, the piston plate 22 can be separated from the outflow port at the bottom of the liquid storage tank 27, and the liquid is injected into the collector 23 under the action of the water pressure of the upper liquid storage tank 27, and the liquid inside the collector 23 can be blocked by the valve 26, and the subsequent work When the personnel presses down the air drill body 1 as a whole, the collector 23 and the liquid storage tank 27 as a whole can be synchronously lowered, and the stationary piston plate 22 can slide on the inner wall of the collector 23, and during the sliding process, it can first pass over the ports of the two groups of liquid storage tanks 27 and seal the liquid storage tanks 27. After the piston plate 22 continues to squeeze, the liquid inside the collector 23 can be squeezed out, and the valve 26 can be opened after being impacted, so that the liquid passes through the water pipe 24 and the middle of the liquid outlet pipe 25, and can be discharged from the inclined small hole at the end of the liquid outlet pipe 25, and transferred to the middle area of ​​the drill bit 12 in turn. Then, the piston plate 22 is under the action of the first spring rod 14. When it is reset again and separated from the two ends of the liquid storage tank 27, the liquid inside the collector 23 can be replenished again, and the process is repeated in sequence. This step is combined with the liquid sprayed from the end of the liquid outlet pipe 25 to lubricate and cool the middle part of the drill bit 12, thereby reducing the high temperature generated by friction of the drill bit 12, which may cause it to overheat and be damaged, and improve the service life of the drill bit 12. The liquid storage tank 27 is set up to continuously add materials to the collector 23, reducing the trouble of the staff having to add materials to the collector 23 multiple times. The valve 26 is set up to directly discharge the liquid when the liquid is added to the valve 26 by the liquid storage tank 27.

[0035] like Figure 2 and 5As shown, two groups of slide bars 3 are slidably connected in the middle of the liquid outlet pipe 25; a baffle plate 31 is fixedly connected to the end of the slide bar 3, and the middle part of the baffle plate 31 is arranged in an arc shape; a magnetic block 32 is fixedly connected to the other end of the slide bar 3; a cleaning sheet 33 is fixedly connected to the middle of the magnetic block 32; an iron sheet 34 is fixedly connected to the inner wall of the liquid outlet pipe 25, and the iron sheet 34 and the magnetic block 32 are arranged to attract each other; during operation, a slidable slide bar 3 is arranged in the middle of the liquid outlet pipe 25, and after the subsequent use of the liquid outlet pipe 25 is completed, the staff squeezes the ends of the two groups of baffle plates 31 inward in turn, so that the cleaning sheet 33 and the magnetic block 32 are completely separated, and then continue to slide. The iron sheet 34 can clean impurities from the small hole in the middle of the liquid outlet pipe 25 in turn, and after the two groups of magnetic blocks 32 continue to move and approach, they can be fixed with the suction force generated, and the arc-shaped baffle plate 31 can also protect and shield the outside of the liquid outlet pipe 25. This step is combined with the cleaning sheet 33 to improve the cleanliness of the inner wall of the liquid outlet pipe 25 after use, and reduce the problem of blockage caused by long-term cleaning. Under the action of the baffle plate 31, the middle part of the liquid outlet pipe 25 can be shielded and stored. At the same time, the iron sheet 34 and two groups of magnetic blocks 32 that can attract each other are provided to improve the stability of the liquid outlet pipe 25 when it is in use or placed.

[0036] like Figure 2 and 6 As shown, the outer wall of the pressing plate 16 is fixedly connected to the frame 4; the middle part of the frame 4 is rotatably connected to the movable rod 41; the middle part of the movable rod 41 is fixedly connected to the counterweight body 42; the outer wall of the pressing plate 16 is fixedly connected to the counterweight body 42; during operation, by arranging the frame 4 on the outer wall of the pressing plate 16, when the pressing plate 16 as a whole moves, the movable rod 41 and the counterweight body 42 can swing in the middle part of the frame 4 under the action of inertia, and then collide with the middle area of ​​the elastic sheet 43, thereby generating a vibration force. This step cooperates with the vibration force generated by the collision of the counterweight body 42 to reduce the amount of impurities attached to the surface of the pressing plate 16 and the steel thorns 17, and improve the problem of subsequent continuous cleaning. In addition, the elastic sheet 43 provided can further amplify the vibration force.

[0037] like Figure 6As shown, two groups of elastic members 5 are fixedly connected to the outer wall of the pressure plate 16; the ends of the elastic members 5 are fixedly connected to the limiting ropes 51, and the middle part of the counterweight body 42 is located on the inner wall of the limiting ropes 51; during operation, by arranging the elastic member 5 in the middle part of the pressure plate 16, when the subsequent staff takes or turns over the air drill body 1 as a whole, the middle part of the rotating counterweight body 42 can first contact with the limiting ropes 51, and stretch the middle parts of the two groups of elastic members 5, and then under the reaction of the two groups of elastic members 5, the counterweight body 42 frequently collides with the middle part of the elastic sheet 43. This step cooperates with the setting of the limiting ropes 51 to limit the movement trajectory of the counterweight body 42, reduce the problem of its excessive swing amplitude and subsequent jamming, and the setting of the elastic member 5 can increase the frequency of the counterweight body 42 colliding with the middle part of the elastic sheet 43.

[0038] like Figure 4 As shown, an observation plate 6 is fixedly connected to the middle of the liquid storage tank 27; a scale 61 is fixedly connected to the outer wall of the liquid storage tank 27, and the scale 61 is arranged near the observation plate 6; during operation, by arranging an observation plate 6 in the middle of the liquid storage tank 27, subsequent staff can visually observe the storage amount of liquid inside the liquid storage tank 27 through the transparent observation plate 6, and record it with the help of the set scale 61. Under the action of the observation plate 6, this step can improve the accuracy of the staff's judgment on the amount of liquid inside the liquid storage tank 27, reduce the problem of insufficient liquid spraying at the end of the liquid outlet pipe 25, and improve the recording accuracy under the action of the scale 61.

[0039] like Figure 5 As shown, the outer wall of the liquid outlet pipe 25 is fixedly connected with a sealing strip 7, and the inner wall of the sealing strip 7 is in contact with the sliding rod 3; when working, a sealing strip 7 made of soft material is arranged on the side wall of the liquid outlet pipe 25, and the sealing strip 7 can reinforce and seal the connection gap between the sliding rod 3 and the liquid outlet pipe 25. Under the action of the sealing strip 7, this step can reduce the loosening of the sliding rod 3 after long-term repeated sliding, so that the side wall connection of the liquid outlet pipe 25 leaks when it is in use.

[0040] like Figure 7 As shown, a method for using a loose formation drilling air drill is applicable to the above-mentioned loose formation drilling air drill, and the method comprises the following steps:

[0041] S1: The air drill body 1 needs to be taken out from the tool box first, and the air pipe outside can continuously input air into the air drill body 1, and at the same time, the two sets of pressing plates 16 and the multiple sets of steel spikes 17 are vertically contacted with the geological ground, and the top of the air drill body 1 is pressed down;

[0042] S2: During the process of pressing down the air drill body 1, the piston plate 22 can transfer the liquid in the collector 23 to the output end of the liquid outlet pipe 25, and spray it from the end of the liquid outlet pipe 25 to the middle area of ​​the drill bit 12. After the piston plate 22 is reset downward, the liquid storage tank 27 can fill the material into the air drill body 1 again. At the same time, the limit rope 51 arranged in cooperation with the two sets of shaking counterweights 42 can continuously hit the middle of the pressure plate 16.

[0043] S3: After the subsequent drilling is completed, the ends of the two sets of shielding plates 31 can be pushed in turn to shield the output end of the liquid outlet pipe 25, and the cleaning sheet 33 can clean the inner wall area of ​​the liquid outlet pipe 25 until the two sets of magnetic blocks 32 are in contact and fixed, and then the air drill body 1 can be stored in the tool box again.

[0044] like Figure 7 As shown, the bottom of the pressing plate 16 proposed in S1 is made of polyvinyl chloride material, so that when the air drill body 1 is pressed down as a whole, the polyvinyl chloride material can be deeply in contact with the ground. Combined with its corrosion resistance, it can reduce the corrosion of the pressing plate 16 by moist soil, which is convenient for subsequent cleaning work.

[0045] Working principle: by connecting the air inlet 11 with the air inlet pipe outside, the outside can continuously input gas into the air drill body 1, and drive the drill bit 12 to rotate quickly. By setting two sets of pressure plates 16 in the middle of the air drill body 1, the staff can make the two sets of pressure plates 16 perpendicular to the geology to be drilled, and press down the air drill body 1 as a whole, so that multiple sets of steel spikes 17 sink into the ground, and the raised end of the drill bit 12 can be synchronously contacted with the ground, and the high-speed rotation characteristic of the drill bit 12 can complete the geological drilling work. When the drill bit 12 is rotating, the staff can continuously press down the air drill body 1 as a whole, and the pressure plate 16 can fix and support the output end of the first spring rod 14, and the air drill body 1 can be lowered when it descends. The output end of the first spring rod 14 is stretched and leaks out, and then after the air drill body 1 completes drilling, the force pressing down the air drill body 1 as a whole is released, and the pressure plate 16 is reset under the elastic force of multiple sets of first spring rods 14. A liquid storage tank 27 is provided on the outer wall of the air drill body 1. At this time, the staff can rotate the cover plate 28 and open it, and then add a proper amount of drilling fluid to the inner wall of the liquid storage tank 27, so that when the drill bit 12 is sunken into the soil, the piston plate 22 can be separated from the outflow port at the bottom of the liquid storage tank 27, and the liquid is injected into the collector 23 under the action of the water pressure of the upper liquid storage tank 27, and the liquid inside the collector 23 can be blocked by the valve 26, and when the staff subsequently presses down the air drill body 1 as a whole, the collector 23 and the liquid storage tank 27 can be lowered synchronously as a whole, and the stationary piston plate 22 can slide on the inner wall of the collector 23. During the sliding process, it can first pass over the ports of the two groups of liquid storage tanks 27 and seal the liquid storage tanks 27. After the piston plate 22 continues to squeeze, the liquid inside the collector 23 can be squeezed out, and the valve 26 can be opened after being impacted, so that the liquid passes through the water pipe 24 and the middle of the liquid outlet pipe 25, and can be discharged from the inclined small hole at the end of the liquid outlet pipe 25, and transferred to the middle area of ​​the drill bit 12 in turn. Subsequently, the piston plate 22 is reset again under the action of the first spring rod 14 and disengaged from the two ends of the liquid storage tank 27, and the liquid inside the collector 23 can be replenished again, and this process is repeated in sequence. By setting a slidable valve in the middle of the liquid outlet pipe 25 The sliding rod 3 of the subsequent liquid outlet pipe 25 is used, and after the subsequent use of the liquid outlet pipe 25 is completed, the staff squeezes the ends of the two groups of shielding plates 31 inwards in turn, so that the cleaning sheet 33 is completely separated from the magnetic block 32, and the iron sheet 34 that continues to slide can clean the impurities in the small hole in the middle of the liquid outlet pipe 25 in turn, and after the two groups of magnetic blocks 32 continue to move and get close, they can be fixed with the suction force generated, and the arc-shaped shielding plate 31 can also protect and shield the outside of the liquid outlet pipe 25. By providing a frame 4 on the outer wall of the pressure plate 16, when the pressure plate 16 is moving as a whole, the movable rod 41 and the counterweight body 42 can swing in the middle of the frame 4 under the action of inertia, and then hit the middle area of ​​the elastic sheet 43, thereby generating a vibration force, and by providing an elastic member 5 in the middle of the pressure plate 16,When the subsequent staff takes or turns over the air drill body 1 as a whole, the middle part of the rotating counterweight body 42 can first contact the limit rope 51 and stretch the middle parts of the two sets of elastic members 5. Then, under the reaction of the two sets of elastic members 5, the counterweight body 42 frequently collides with the middle part of the elastic sheet 43. By setting an observation plate 6 in the middle of the liquid storage tank 27, the subsequent staff can directly observe the storage amount of the liquid inside the liquid storage tank 27 through the transparent observation plate 6 and record it with the scale 61. By setting a sealing strip 7 made of soft material on the side wall of the liquid outlet pipe 25, the sealing strip 7 can reinforce and seal the connection gap between the slide rod 3 and the liquid outlet pipe 25.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An air drill for drilling in loose formations, comprising an air drill body (1); an air inlet (11) is installed at the top of the air drill body (1); a drill bit (12) is installed at the bottom of the air drill body (1); the characteristics are: A first support plate (13) is fixedly connected to the middle of the air drill body (1); two groups of first spring rods (14) are fixedly connected to the top of the first support plate (13); a connecting frame (15) is fixedly connected to the top of the output end of the first spring rod (14); a pressing plate (16) is fixedly connected to the bottom wall of the connecting frame (15), and the pressing plate (16) is slidably arranged in the middle of the air drill body (1); and a plurality of groups of steel spikes (17) are fixedly connected to the bottom of the pressing plate (16).

2. The pneumatic drill for drilling in loose strata according to claim 1, characterized in that: The output end side wall of the first spring rod (14) is fixedly connected to a connecting rod (2); the bottom of the connecting rod (2) is fixedly connected to a second supporting plate (21); the top of the second supporting plate (21) is fixedly connected to a piston plate (22); the side wall of the air drill body (1) is fixedly connected to two groups of collectors (23); the piston plate (22) is slidably arranged on the inner wall of the collector (23); the middle of the collector (23) is fixedly connected to a water pipe (24); the end of the water pipe (24) is fixedly connected to a liquid outlet pipe (25), and the liquid outlet pipe (25), the water pipe (24) and the collector (23) are connected; a valve (26) is fixedly connected to the inner wall of the collector (23), and the valve (26) is arranged near the output end of the water pipe (24); two groups of liquid storage tanks (27) are fixedly connected to the side wall of the air drill body (1), and the liquid storage tanks (27) are arranged on the top of the collector (23); the end of the liquid storage tank (27) is connected to the bottom side wall of the collector (23); and a cover plate (28) is threadedly connected to the bottom of the liquid storage tank (27).

3. A pneumatic drill for drilling in loose formations as claimed in claim 2, characterized in that: The middle part of the liquid outlet pipe (25) is slidably connected with two groups of sliding rods (3); the end of the sliding rod (3) is fixedly connected with a shielding plate (31), and the middle part of the shielding plate (31) is arranged in an arc shape; the other end of the sliding rod (3) is fixedly connected with a magnetic block (32); the middle part of the magnetic block (32) is fixedly connected with a cleaning sheet (33); the inner wall of the liquid outlet pipe (25) is fixedly connected with an iron sheet (34), and the iron sheet (34) and the magnetic block (32) are arranged to attract each other.

4. The pneumatic drill for drilling in loose strata according to claim 1, characterized in that: The outer wall of the pressure plate (16) is fixedly connected to a frame (4); the middle of the frame (4) is rotatably connected to a movable rod (41); the middle of the movable rod (41) is fixedly connected to a counterweight (42); the outer wall of the pressure plate (16) is fixedly connected to a counterweight (42).

5. The pneumatic drill for drilling in loose strata according to claim 4, characterized in that: Two groups of elastic members (5) are fixedly connected to the outer wall of the pressure plate (16); the ends of the elastic members (5) are fixedly connected to the limiting ropes (51), and the middle part of the counterweight body (42) is arranged on the inner wall of the limiting ropes (51).

6. The air drill for drilling in loose formations according to claim 2, characterized in that: An observation plate (6) is fixedly connected to the middle of the liquid storage box (27); a scale (61) is fixedly connected to the outer wall of the liquid storage box (27), and the scale (61) is arranged close to the observation plate (6).

7. The air drill for drilling in loose formations according to claim 3, characterized in that: A sealing strip (7) is fixedly connected to the outer wall of the liquid outlet pipe (25), and the inner wall of the sealing strip (7) is in contact with the sliding rod (3).

8. A method for using a gas drill for drilling in loose formations, the method being applicable to a gas drill for drilling in loose formations as claimed in claims 1 to 7, the method comprising the following steps: S1: The air drill body (1) needs to be taken out from the tool box first, and the air pipe outside can continuously input air into the air drill body (1), and at the same time, two sets of pressure plates (16) and multiple sets of steel spikes (17) are vertically contacted with the geological ground, and the top of the air drill body (1) is pressed down; S2: When the air drill body (1) is pressed down, the piston plate (22) can transfer the liquid in the collector (23) to the output end of the liquid outlet pipe (25), and spray it from the end of the liquid outlet pipe (25) to the middle area of ​​the drill bit (12). After the piston plate (22) is reset downward, the liquid storage tank (27) can fill the material into the air drill body (1) again, and at the same time, the two sets of swinging counterweights (42) and the limit ropes (51) can continuously hit the middle of the pressure plate (16); S3: After the subsequent drilling is completed, the ends of the two sets of shielding plates (31) can be pushed in sequence to shield the output end of the liquid outlet pipe (25), and the cleaning sheet (33) can clean the inner wall area of ​​the liquid outlet pipe (25) until the two sets of magnetic blocks (32) are in contact and fixed, and then the air drill body (1) can be stored in the tool box again.

9. The method for using a loose formation drilling air drill according to claim 8, characterized in that: The bottom of the pressing plate (16) proposed in S1 is made of polyvinyl chloride material, so that when the air drill body (1) is pressed down as a whole, the polyvinyl chloride material can be in deep contact with the ground. Combined with its corrosion resistance, it can reduce the corrosion of the pressing plate (16) by moist soil, facilitating subsequent cleaning work.

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