A sand bailing device in a drill hole

Abstract

The invention discloses a sand bailing device in a borehole, comprising a mast and a connecting frame installed on the left side of the mast, a drill rod is movably installed in the connecting frame through a power head, a sand bailing tube drill is installed at the bottom of the drill rod, cleaning tubes are connected to the two sides of the connecting frame through a lifting mechanism, a high-pressure flushing mechanism and a reciprocating striking mechanism are sequentially arranged in the cleaning tube along its height downward, and the left side of the bottom of the cleaning tube is connected to the inner tube flushing mechanism. The beneficial effect of the invention is that the lifting mechanism drives the guide tube to descend and pass through the sand bailing tube drill, a plurality of high-pressure flushing heads flush the sand bailing tube drill with high pressure, and a group of micro electric push rods can adjust the flushing angle of the high-pressure flushing head; cooperate with a plurality of reciprocating striking heads to reciprocate the sand bailing tube drill, so that the mud and sand in the sand bailing tube drill completely fall off; the servo cylinder drives the three-dimensional rotating cleaning head to extend into the sand bailing tube drill to flush the tube, thereby realizing the rapid cleaning of the mud and sand adhering to the sand bailing tube drill and improving the construction progress.

Description

Technical Field

[0001] The invention relates to the technical field of drilling sand bailing, in particular to a drilling sand bailing device. Background Art

[0002] The rotary drilling rig is a construction machine suitable for drilling holes in building foundation projects. It is mainly suitable for construction of sand, clay, silty soil and other soil layers, and is widely used in various foundation constructions such as cast-in-place piles, continuous walls, and foundation reinforcement. The main structure of the sand dredger is composed of a barrel body connected to a square head bin, soluble slag inside, a movable bottom door, and a connecting rod door opening mechanism reset by a spring.

[0003] When working, the sand dredger is connected to the square head of the rotary drilling rig and the drilling rig and other main equipment drives the drill rod to rotate and press down to continue drilling. When the bucket is full, the bucket door is closed as the drill rod flips and lifted to the pile hole. The movable bottom door opens when the door opening link mechanism is compressed to release the lock hook to pour out the debris. At present, when the sand dredger encounters strong adhesive formation construction, mud and sand are easily attached to the dredger and difficult to discharge. The drill rod drives the sand dredger to rotate forward and reversely, which cannot completely remove the mud and sand on the dredger, the outside, and the bucket teeth, making it inconvenient to quickly unload the mud and sand, and affecting the construction progress.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0005] In view of the above defects, the present invention provides a device for bailing sand in a drill hole to solve the problem of bailing sand in a drill hole.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A sand bailing device in a drill hole comprises a mast and a connecting frame installed on the left side of the mast, a drill rod is movably installed in the connecting frame through a power head, a sand bailing barrel drill is installed at the bottom of the drill rod, cleaning barrels are connected to both sides of the connecting frame through a lifting mechanism, a high-pressure flushing mechanism and a reciprocating striking mechanism are arranged in the cleaning barrel in sequence along its height downward, and an inner barrel flushing mechanism is connected to the left side of the bottom of the cleaning barrel; The high-pressure flushing mechanism comprises an annular inner plate, a group of micro-electric push rods, an annular top plate, a plurality of bar-shaped teeth, a plurality of hinged seats, a plurality of incomplete gears and a plurality of high-pressure flushing heads, wherein the annular inner plate is fixedly installed in the cleaning barrel, a group of micro-electric push rods are installed on both sides of the upper end of the cleaning barrel, the annular top plate is installed on the telescopic ends of a group of micro-electric push rods, a plurality of bar-shaped teeth are evenly installed at the bottom of the annular top plate, a plurality of hinged seats are evenly installed on the inner wall of the annular inner plate, a plurality of incomplete gears are movably installed in a plurality of hinged seats, and the rear ends are respectively meshed with the corresponding bar-shaped teeth, and a plurality of high-pressure flushing heads are installed at the front ends of the plurality of incomplete gears; The reciprocating striking mechanism includes a driving motor, a driving gear, an annular inner gear ring, a plurality of transmission shafts, a plurality of transmission gears, a plurality of incomplete gears 2, a plurality of sliding rods, a plurality of sliding racks 2 and a plurality of reciprocating striking heads. The driving motor is installed on the left side of the upper end of the cleaning cylinder, and the rotating end is movably inserted in the cleaning cylinder, the driving gear is installed on the rotating end of the driving motor, the annular inner gear ring is movably installed on the inner wall of the cleaning cylinder, and the driving gear is meshed with the annular inner gear ring, a plurality of transmission shafts are movably installed on the inner wall of the cleaning cylinder, a plurality of transmission gears are installed on the upper ends of a plurality of transmission shafts, and are respectively meshed with the annular inner gear rings, a plurality of incomplete gears 2 are installed on the lower ends of a plurality of transmission shafts, a plurality of sliding rods are movably inserted in the cleaning cylinder and the bottom of the annular inner plate, a plurality of sliding racks 2 are installed on one side of a plurality of sliding rods, and are respectively meshed with the corresponding incomplete gears 2, and a plurality of reciprocating striking heads are installed at the front ends of a plurality of sliding rods.

[0007] Furthermore, the lifting mechanism includes a hydraulic cylinder, a guide cylinder and a guide rod. The hydraulic cylinder is installed at the front end of the connecting frame, and the telescopic end is connected to one side of the top of the cleaning cylinder. The guide cylinder is installed at the rear end of the connecting frame. The guide rod is movably inserted in the guide cylinder, and the lower end is connected to the other side of the top of the cleaning cylinder.

[0008] Furthermore, the inner drum flushing mechanism includes an n-type mounting frame, a group of rotating shafts, an adjusting motor, a servo cylinder and a three-dimensional rotating cleaning head. The n-type mounting frame is installed on the left side of the bottom of the cleaning drum, a group of rotating shafts are movably inserted in the n-type mounting frame, the adjusting motor is installed at the front end of the n-type mounting frame, and the rotating end is connected to one of the rotating shafts, the two sides of the servo cylinder are installed on a group of rotating shafts, and the three-dimensional rotating cleaning head is installed on the telescopic end of the servo cylinder.

[0009] Furthermore, a limiting rod corresponding to the servo cylinder is installed on the left side of the bottom of the n-shaped mounting frame.

[0010] Furthermore, a plurality of high-pressure flushing heads and three-dimensional rotating cleaning heads are respectively connected to external water pipes through hoses, and a plurality of high-pressure flushing heads and a plurality of reciprocating striking heads are arranged alternately.

[0011] Furthermore, a circular sliding groove corresponding to the annular inner gear ring is opened on the inner wall of the cleaning cylinder.

[0012] Furthermore, the cleaning cylinder and the bottom of the annular inner plate are respectively provided with guide grooves corresponding to the plurality of sliding rods, and the outer surfaces of the front ends of the plurality of sliding rods are respectively provided with springs, and the rear ends are respectively provided with limit blocks.

[0013] Furthermore, a plurality of water outlet holes are evenly opened on the outer surface of the upper end of the sand dredging tube drill, and stainless steel filter screens are respectively installed in the plurality of water outlet holes.

[0014] Furthermore, an opening and closing structure is installed on the left side of the upper end of the sand dredging tube drill.

[0015] The present invention provides a sand bailing device in a drill hole, which has the following beneficial effects: a hydraulic oil cylinder is used through a lifting mechanism located at the top of a cleaning cylinder to drive a guide cylinder to descend, pass through the sand bailing cylinder drill, and clean the sand bailing cylinder drill, and the guide rod can play a guiding role; The high-pressure flushing mechanism uses several high-pressure flushing heads to perform high-pressure flushing on the top, outer surface and mud and sand on the bucket teeth of the sand dredger. At the same time, a group of micro electric push rods can adjust the flushing angles of several high-pressure flushing heads; the reciprocating striking mechanism uses a driving motor to pull several sliding rods, and under the action of spring reset, the sand dredger is reciprocated by several reciprocating striking heads at the front end to make the mud and sand in the sand dredger fall off completely; The inner barrel flushing mechanism uses a servo cylinder to drive a three-dimensional rotating cleaning head to extend into the sand dredging barrel drill to flush the barrel, thereby quickly cleaning the mud and sand. The servo cylinder is in a vertical position when it is reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of a device for bailing sand in a drill hole.

[0017] Figure 2 This is an appearance diagram of the cleaning tube of the present invention.

[0018] Figure 3 It is a cross-sectional view of the cleaning tube of the present invention.

[0019] Figure 4 It is a schematic diagram of the high-pressure flushing mechanism of the present invention.

[0020] Figure 5 Schematic diagram of the drive motor of the present invention.

[0021] Figure 6 It is a schematic diagram of the reciprocating striking mechanism of the present invention.

[0022] Figure 7 It is a top view of the cleaning tube of the present invention.

[0023] Figure 8 It is a bottom view of the cleaning tube of the present invention.

[0024] Fig. 9 It is a schematic diagram of the transmission of the sliding rod of the present invention.

[0025] Fig.10 It is a transmission schematic diagram of the high-pressure flushing head of the present invention.

[0026] Fig.11 It is a schematic diagram of the inner cylinder flushing mechanism of the present invention.

[0027] In the figure: 1. mast; 2. connecting frame; 3. power head; 4. drill rod; 5. sand dredger; 6. cleaning cylinder; 7. annular inner plate; 8. micro electric push rod; 9. annular top plate; 10. bar gear 1; 11. hinge seat; 12. incomplete gear 1; 13. high pressure washing head; 14. drive motor; 15. drive gear; 16. annular inner gear ring; 17. transmission shaft; 18. transmission gear; 19. incomplete gear 2; 20. sliding rod; 21. sliding rack 2; 22. reciprocating striking head; 23. hydraulic cylinder; 24. guide cylinder; 25. guide rod; 26. n-type mounting frame; 27. rotating shaft; 28. adjusting motor; 29. ​​servo cylinder; 30. three-dimensional rotating cleaning head; 31. limit rod; 32. spring; 33. water outlet; 34. opening and closing structure. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-11 As shown: a sand bailing device in a drill hole, comprising a mast 1 and a connecting frame 2 installed on the left side of the mast 1, a drill rod 4 is movably installed in the connecting frame 2 through a power head 3, a sand bailing barrel drill 5 is installed at the bottom of the drill rod 4, cleaning barrels 6 are connected to both sides of the connecting frame 2 through a lifting mechanism, a high-pressure flushing mechanism and a reciprocating striking mechanism are arranged in the cleaning barrel 6 in sequence along its height downward, and an inner barrel flushing mechanism is connected to the left side of the bottom of the cleaning barrel 6; The high-pressure flushing mechanism includes an annular inner plate 7, a group of micro-electric push rods 8, an annular top plate 9, a plurality of bar-shaped teeth 10, a plurality of hinged seats 11, a plurality of incomplete gears 12 and a plurality of high-pressure flushing heads 13. The annular inner plate 7 is fixedly installed in the cleaning tube 6, a group of micro-electric push rods 8 are installed on both sides of the upper end of the cleaning tube 6, the annular top plate 9 is installed on the telescopic ends of a group of micro-electric push rods 8, a plurality of bar-shaped teeth 10 are evenly installed at the bottom of the annular top plate 9, a plurality of hinged seats 11 are evenly installed on the inner wall of the annular inner plate 7, a plurality of incomplete gears 12 are movably installed in the plurality of hinged seats 11, and the rear ends are respectively meshed with the corresponding bar-shaped teeth 10, and a plurality of high-pressure flushing heads 13 are installed at the front ends of the plurality of incomplete gears 12; The reciprocating striking mechanism includes a driving motor 14, a driving gear 15, an annular inner gear ring 16, a plurality of transmission shafts 17, a plurality of transmission gears 18, a plurality of incomplete gears 19, a plurality of sliding rods 20, a plurality of sliding racks 21 and a plurality of reciprocating striking heads 22. The driving motor 14 is installed on the left side of the upper end of the cleaning cylinder 6, and the rotating end is movably inserted in the cleaning cylinder 6. The driving gear 15 is installed on the rotating end of the driving motor 14, and the annular inner gear ring 16 is movably installed on the inner wall of the cleaning cylinder 6, and the driving gear 15 is connected to the annular inner gear ring 16. The gear ring 16 is meshed, several transmission shafts 17 are movably installed on the inner wall of the cleaning tube 6, several transmission gears 18 are installed on the upper ends of several transmission shafts 17, and are respectively meshed with the annular inner gear ring 16, several incomplete gears 19 are installed on the lower ends of several transmission shafts 17, several sliding rods 20 are movably inserted in the cleaning tube 6 and the bottom of the annular inner plate 7, several sliding racks 21 are installed on one side of the several sliding rods 20, and are respectively meshed with the corresponding incomplete gears 19, and several reciprocating striking heads 22 are installed at the front ends of several sliding rods 20.

[0029] The lifting mechanism includes a hydraulic cylinder 23, a guide cylinder 24 and a guide rod 25. The hydraulic cylinder 23 is installed at the front end of the connecting frame 2, and the telescopic end is connected to one side of the top of the cleaning cylinder 6. The guide cylinder 24 is installed at the rear end of the connecting frame 2. The guide rod 25 is movably inserted in the guide cylinder 24, and the lower end is connected to the other side of the top of the cleaning cylinder 6.

[0030] The inner drum flushing mechanism includes an n-type mounting frame 26, a group of rotating shafts 27, an adjusting motor 28, a servo cylinder 29 and a three-dimensional rotating cleaning head 30. The n-type mounting frame 26 is installed on the left side of the bottom of the cleaning drum 6, and a group of rotating shafts 27 are movably inserted in the n-type mounting frame 26. The adjusting motor 28 is installed at the front end of the n-type mounting frame 26, and the rotating end is connected to one of the rotating shafts 27. The servo cylinder 29 is installed on a group of rotating shafts 27 on both sides, and the three-dimensional rotating cleaning head 30 is installed on the telescopic end of the servo cylinder 29.

[0031] A limiting rod 31 corresponding to the servo cylinder 29 is installed on the left side of the bottom of the n-shaped mounting frame 26 .

[0032] The plurality of high-pressure flushing heads 13 and the three-dimensional rotating cleaning heads 30 are respectively connected to the external water pipe through a hose, and the plurality of high-pressure flushing heads 13 and the plurality of reciprocating striking heads 22 are arranged alternately.

[0033] The inner wall of the cleaning cylinder 6 is provided with a circular sliding groove corresponding to the annular inner gear ring 16 .

[0034] The cleaning cylinder 6 and the bottom of the annular inner plate 7 are respectively provided with guide grooves corresponding to the plurality of sliding rods 20, and the outer surfaces of the front ends of the plurality of sliding rods 20 are respectively provided with springs 32, and the rear ends are respectively provided with limit blocks.

[0035] A plurality of water outlet holes 33 are evenly formed on the outer surface of the upper end of the sand dredging tube 5, and stainless steel filter screens are respectively installed in the plurality of water outlet holes 33.

[0036] An opening and closing structure 34 is installed on the left side of the upper end of the sand dredging tube drill 5.

[0037] Working principle of this embodiment: the electrical equipment used in the device is controlled by an external controller, the mast 1 is installed on the rotary drilling rig, when working, the sand dredger 5 is connected to the square head of the drill rod 4, and the drilling rig and other host equipment drive the drill rod 4 to rotate and press down to continue drilling, and when the bucket is full, the bucket door is closed with the drill rod 4 flipped and lifted to the pile hole, and the movable bottom door is opened when the opening and closing structure 34 is compressed to release the lock hook, and the slag is poured out; When lifting: the hydraulic cylinder 23 is installed on the front end of the connecting frame 2, and the telescopic end is connected to one side of the top of the cleaning cylinder 6, the guide cylinder 24 is installed on the rear end of the connecting frame 2, the guide rod 25 is movably inserted in the guide cylinder 24, and the lower end is connected to the other side of the top of the cleaning cylinder 6, as shown in FIG. Figure 1 and Figure 2 As shown, the initial position of the cleaning cylinder 6 is located below the connecting frame 2, which does not affect the normal working of the sand dredger 5. When the sand dredger 5 needs to be cleaned, the hydraulic cylinder 23 first drives the guide cylinder 24 to descend, passes through the sand dredger 5, and cleans the sand dredger 5. The guide rod 25 can play a guiding role. During high-pressure flushing: the annular inner plate 7 is fixedly installed in the cleaning tube 6, a group of micro-electric push rods 8 are installed on both sides of the upper end of the cleaning tube 6, the annular top plate 9 is installed on the telescopic ends of a group of micro-electric push rods 8, a plurality of bar-shaped teeth 10 are evenly installed at the bottom of the annular top plate 9, a plurality of hinge seats 11 are evenly installed on the inner wall of the annular inner plate 7, a plurality of incomplete gears 12 are movably installed in a plurality of hinge seats 11, and the rear ends are respectively meshed with the corresponding bar-shaped teeth 10, and a plurality of high-pressure flushing heads 13 are installed at the front ends of a plurality of incomplete gears 12, such as Figure 3 , Figure 4 and Fig.10 As shown, the sand dredger 5 first passes through the annular top plate 9 and the annular inner plate 7 respectively, and the high-pressure flushing mechanism uses a plurality of high-pressure flushing heads 13 to perform high-pressure flushing on the mud and sand on the sand dredger 5. At the same time, a group of micro-electric push rods 8 extend at the telescopic end, through the annular top plate 9, a plurality of bar-shaped teeth 10 and a plurality of incomplete gears 12, drive the plurality of high-pressure flushing heads 13 to deflect downward, so as to facilitate flushing the top of the sand dredger 5. Conversely, a group of micro-electric push rods 8 retract at the telescopic end, through the annular top plate 9, a plurality of bar-shaped teeth 10 and a plurality of incomplete gears 12, drive the plurality of high-pressure flushing heads 13 to deflect upward, so as to facilitate flushing the bottom bucket teeth of the sand dredger 5. During reciprocating striking: the driving motor 14 is installed on the left side of the upper end of the cleaning tube 6, and the rotating end is movably inserted into the cleaning tube 6 through a fastening bearing, the driving gear 15 is installed on the rotating end of the driving motor 14, the annular inner gear ring 16 is movably installed on the inner wall of the cleaning tube 6, and the driving gear 15 is meshed with the annular inner gear ring 16, a plurality of transmission shafts 17 are movably installed on the inner wall of the cleaning tube 6 through a fastening bearing, a plurality of transmission gears 18 are installed on the upper ends of a plurality of transmission shafts 17, and are respectively meshed with the annular inner gear ring 16, and a plurality of incomplete gears 19 are installed on the lower ends of a plurality of transmission shafts 17, A plurality of sliding rods 20 are movably inserted in the cleaning cylinder 6 and the bottom of the annular inner plate 7, a plurality of sliding racks 21 are installed on one side of the plurality of sliding rods 20, and are respectively meshed with the corresponding incomplete gears 2 19, a plurality of reciprocating striking heads 22 are installed at the front ends of the plurality of sliding rods 20, a circular slide groove corresponding to the annular inner gear ring 16 is opened on the inner wall of the cleaning cylinder 6, a guide groove corresponding to the plurality of sliding rods 20 is opened at the bottom of the cleaning cylinder 6 and the annular inner plate 7, and a spring 32 is respectively mounted on the outer surface of the front ends of the plurality of sliding rods 20, and a limit block is respectively installed at the rear ends, such as Figure 5 , Figure 6 , Figure 8 as well as Fig. 9 As shown, the driving motor 14 first drives the annular inner gear ring 16 to rotate through the driving gear 15, and drives a plurality of incomplete gears 19 to rotate clockwise through a plurality of transmission gears 18 and a plurality of transmission shafts 17. When the incomplete gear 19 is meshed with the sliding rack 21 on the sliding rod 20, the sliding rod 20 moves backward and compresses the spring 32. When the incomplete gear 19 is separated from the sliding rack 21, the spring 32 is reset and hits the sand dredger 5 through the reciprocating striking head 22 at the front end of the sliding rod 20, so that the mud and sand in the sand dredger 5 are completely dropped. When the inner drum is flushed: the n-type mounting frame 26 is installed on the left side of the bottom of the cleaning drum 6, a set of rotating shafts 27 are movably inserted in the n-type mounting frame 26, the adjusting motor 28 is installed at the front end of the n-type mounting frame 26, and the rotating end is connected to one of the rotating shafts 27, the servo cylinder 29 is installed on both sides of a set of rotating shafts 27, the three-dimensional rotating cleaning head 30 is installed on the telescopic end of the servo cylinder 29, and a limit rod 31 corresponding to the servo cylinder 29 is installed on the left side of the bottom of the n-type mounting frame 26, as shown in FIG. Figure 2 and Fig.11 As shown, when it is necessary to flush the sand dredger 5, the cleaning barrel 6 moves to the bottom of the sand dredger 5, the bucket door of the sand dredger 5 is in an open state, and the adjusting motor 28 first drives the servo cylinder 29 to flip to an inclined state, and the limit rod 31 plays a limiting role. Then, the servo cylinder 29 drives the three-dimensional rotating cleaning head 30 to extend into the sand dredger 5 to flush the barrel, thereby realizing rapid cleaning of mud and sand. The servo cylinder 29 is in a vertical state when it is reset.

[0038] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A sand bailing device in a drill hole, comprising a mast (1) and a connecting frame (2) installed on the left side of the mast (1), a drill rod (4) being movably installed in the connecting frame (2) via a power head (3), and a sand bailing auger (5) being installed at the bottom of the drill rod (4), characterized in that: The two sides of the connecting frame (2) are connected to a cleaning cylinder (6) via a lifting mechanism, and a high-pressure flushing mechanism and a reciprocating striking mechanism are sequentially arranged in the cleaning cylinder (6) along its height downward, and the left side of the bottom of the cleaning cylinder (6) is connected to an inner cylinder flushing mechanism; The high-pressure flushing mechanism comprises an annular inner plate (7), a group of micro-electric push rods (8), an annular top plate (9), a plurality of bar-shaped teeth (10), a plurality of hinged seats (11), a plurality of incomplete gears (12) and a plurality of high-pressure flushing heads (13), wherein the annular inner plate (7) is fixedly mounted in a cleaning barrel (6), a group of micro-electric push rods (8) are mounted on both sides of the upper end of the cleaning barrel (6), the annular top plate (9) is mounted on the telescopic ends of a group of micro-electric push rods (8), a plurality of bar-shaped teeth (10) are evenly mounted on the bottom of the annular top plate (9), a plurality of hinged seats (11) are evenly mounted on the inner wall of the annular inner plate (7), a plurality of incomplete gears (12) are movably mounted in the plurality of hinged seats (11), and the rear ends are respectively meshed with the corresponding bar-shaped teeth (10), and a plurality of high-pressure flushing heads (13) are mounted on the front ends of the plurality of incomplete gears (12); The reciprocating striking mechanism comprises a driving motor (14), a driving gear (15), an annular inner gear ring (16), a plurality of transmission shafts (17), a plurality of transmission gears (18), a plurality of incomplete gears (19), a plurality of sliding rods (20), a plurality of sliding racks (21), and a plurality of reciprocating striking heads (22). The driving motor (14) is mounted on the left side of the upper end of the cleaning barrel (6), and the rotating end is movably inserted into the cleaning barrel (6). The driving gear (15) is mounted on the rotating end of the driving motor (14), and the annular inner gear ring (16) is movably mounted on the inner wall of the cleaning barrel (6). The driving gear (15) and the annular inner gear ring (16) are movably mounted on the inner wall of the cleaning barrel (6). The cleaning cylinder (6) is meshed with an inner gear ring (16), a plurality of transmission shafts (17) are movably mounted on the inner wall of the cleaning cylinder (6), a plurality of transmission gears (18) are mounted on the upper ends of the plurality of transmission shafts (17) and are respectively meshed with the annular inner gear ring (16), a plurality of incomplete gears (19) are mounted on the lower ends of the plurality of transmission shafts (17), a plurality of sliding rods (20) are movably inserted in the cleaning cylinder (6) and the bottom of the annular inner plate (7), a plurality of sliding racks (21) are mounted on one side of the plurality of sliding rods (20) and are respectively meshed with the corresponding incomplete gears (19), and a plurality of reciprocating striking heads (22) are mounted on the front ends of the plurality of sliding rods (20).

2. A sand bailing device in a drill hole according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic cylinder (23), a guide cylinder (24) and a guide rod (25); the hydraulic cylinder (23) is mounted on the front end of the connecting frame (2), and the telescopic end is connected to one side of the top of the cleaning cylinder (6); the guide cylinder (24) is mounted on the rear end of the connecting frame (2); the guide rod (25) is movably inserted in the guide cylinder (24), and the lower end is connected to the other side of the top of the cleaning cylinder (6).

3. A sand bailing device in a drill hole according to claim 1, characterized in that: The inner drum flushing mechanism comprises an n-shaped mounting frame (26), a group of rotating shafts (27), an adjusting motor (28), a servo cylinder (29) and a three-dimensional rotating cleaning head (30), wherein the n-shaped mounting frame (26) is mounted on the left side of the bottom of the cleaning drum (6), a group of rotating shafts (27) is movably inserted in the n-shaped mounting frame (26), the adjusting motor (28) is mounted on the front end of the n-shaped mounting frame (26), and the rotating end is connected to one of the rotating shafts (27), the two sides of the servo cylinder (29) are mounted on the group of rotating shafts (27), and the three-dimensional rotating cleaning head (30) is mounted on the telescopic end of the servo cylinder (29).

4. A sand bailing device in a drill hole according to claim 3, characterized in that: A limiting rod (31) corresponding to the servo cylinder (29) is installed on the left side of the bottom of the N-shaped mounting frame (26).

5. The device for bailing sand in a drill hole according to claim 1, characterized in that: The plurality of high-pressure flushing heads (13) and the three-dimensional rotating cleaning heads (30) are respectively connected to an external water pipe via a hose, and the plurality of high-pressure flushing heads (13) and the plurality of reciprocating striking heads (22) are arranged in an alternating manner.

6. The device for bailing sand in a drill hole according to claim 1, characterized in that: The inner wall of the cleaning cylinder (6) is provided with a circular sliding groove corresponding to the annular inner gear ring (16).

7. The device for bailing sand in a drill hole according to claim 1, characterized in that: The cleaning cylinder (6) and the bottom of the annular inner plate (7) are respectively provided with guide grooves corresponding to the plurality of sliding rods (20), and the front end outer surfaces of the plurality of sliding rods (20) are respectively provided with springs (32) and the rear ends are respectively provided with limit blocks.

8. The device for bailing sand in a drill hole according to claim 1, characterized in that: A plurality of water outlet holes (33) are evenly formed on the outer surface of the upper end of the sand dredging tube drill (5), and stainless steel filter screens are respectively installed in the plurality of water outlet holes (33).

9. The device for bailing sand in a drill hole according to claim 1, characterized in that: An opening and closing structure (34) is installed on the left side of the upper end of the sand dredging auger (5).

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