Drilling, punching and expanding hydraulic drilling machine

Abstract

The invention relates to the technical field of geotechnical engineering equipment, in particular to a drilling, punching and expanding hydraulic drilling rig which comprises a driving rod, one end of the driving rod is fixedly connected with an end, the end, away from the end, of the driving rod is communicated with a connecting pipe, a second gear is fixedly connected to the output end of a first motor, and a second gear is fixedly connected to the output end of a second motor. A drill bit is fixedly connected to the bottom of the end, and an expansion plate is arranged above the drill bit. The side plates on the two sides are fixed, the angle is adjusted through a hydraulic rod, a drill bit is made to conduct punching smoothly, meanwhile, reaming operation is conducted through an expansion plate, reaming operation is conducted while punching is conducted at different angles, meanwhile, a sliding column moves downwards, and an L-shaped rod is locked through a buckle column, a lower transmission column and a transverse rod so that the stability of the expansion plate can be guaranteed; the situation that vibration is generated in the drilling process, so that the expansion plate is uneven in drilling, and pipeline burying is caused to cause pipeline damage is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geotechnical engineering equipment, in particular to a drilling, punching and expanding hydraulic drilling machine. BACKGROUND

[0002] The drilling, punching and expanding hydraulic drilling machine is a hydraulic driving device specially used for coal mine gas extraction, which integrates drilling, punching (water jet or mechanical impact) and reaming functions to improve the drilling efficiency of coal seams, expand the borehole size and optimize the gas extraction effect. China Patent No. CN111827880A discloses a drilling, punching and expanding integrated hydraulic drilling machine, which comprises a tracked chassis, a base, a hydraulic pump station, a first rotary reducer, a second rotary reducer, a guide rail, a rotary device, a high-pressure sealed drill rod, a high-pressure water braid, a high-low pressure conversion valve, a clamp, a reaming device and a drill bit. The reaming device is provided with a conversion valve core assembly, a rectangular through hole, a blade, a flushing structure, a permeability enhancement structure and a shielding structure. The present application has compact structure, high reliability, and can save a lot of manpower, material resources and financial resources. Although the above-mentioned patent utilizes multiple components and structures to achieve compact structure, high reliability, and can save a lot of manpower, material resources and financial resources, etc., but considering the stability of the expansion drill bit when the hole needs to be expanded to set the pipeline, the vibration generated during the drilling process affects the stability of the expansion drill bit, causing sharp parts on the inner wall of the hole, which may cause irreversible damage to the pipeline during subsequent pipeline embedding. When drilling gas extraction pipes, reaming is required, and the damage to the extraction pipe also needs to be considered. In view of this, we propose a drilling, punching and expanding hydraulic drilling machine. SUMMARY

[0003] The present application aims to provide a drilling, punching and expanding hydraulic drilling machine to solve the problems raised in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides a drilling, punching and expanding hydraulic drilling machine, which comprises a driving rod, one end of the driving rod is fixedly connected with an end head, a connecting pipe is communicated with the end away from the end head of the driving rod, a No. 1 gear is fixedly connected to the middle end of the driving rod, a No. 2 gear is meshingly connected to one side of the No. 1 gear, a No. 1 motor is arranged at the bottom of the No. 2 gear, and the No. 2 gear is fixedly connected to the output end of the No. 1 motor. A drill bit is fixedly connected to the bottom of the end head, a No. 2 motor is fixedly connected to the top of the drill bit, an expansion plate is arranged above the drill bit, the expansion plate is slightly inclined downward, the No. 2 motor is fixedly connected to the inner side of the driving rod, and a locking assembly is arranged on the inner side of the end head.

[0005] As the preferred, the two sides of the driving rod are provided with a side plate, the driving rod is rotatably connected between the two side plates, the outer side of the side plate is rotatably connected with a hydraulic rod, the outer end of the hydraulic rod away from the side plate is rotatably connected with a second side plate, the middle end of the second side plate is fixedly connected with a support column, and the outer end of the support column away from the second side plate is rotatably connected with the side plate.

[0006] As the preferred, the inner side of the end is fixedly connected with an inner column, the two side walls of the inner column are provided with an arc-shaped hole, the inner wall of the end is fixedly connected with a triangular extension plate, the triangular extension plate is located on the two sides of the first arc-shaped hole and parallel to each other, the upper end of the inner column is fixedly connected with a first fixed column, the lower end of the inner column is fixedly connected with a second fixed column, and the surface of the second fixed column is provided with a square hole.

[0007] As the preferred, the lower end of the end is provided with a plurality of strip-shaped holes, the L-shaped rod is rotatably connected with the inner wall of the strip-shaped hole, one end of the L-shaped rod is in the shape of a hook, the top of the L-shaped rod is in the shape of an inclined plane, the other end of the L-shaped rod is provided with an expansion plate, and the L-shaped rod is rotatably connected with the inner side of the expansion plate.

[0008] As the preferred, the expansion plate is composed of a plurality of arc-shaped plates, a first telescopic rod is fixedly connected between the inner sides of the arc-shaped plates, the expansion plates are combined to form a complete annular expansion plate, and the bottom inner wall of the end is fixedly connected with an isolation chamber.

[0009] As the preferred, the locking assembly comprises a rotating rod, the rotating rod is fixedly connected with the output end of the second motor, the middle end of the rotating rod is fixedly connected with a threaded rod, the outer end of the rotating rod away from the second motor is telescopically connected with an electric telescopic piece, the lower end of the rotating rod is fixedly connected with an upper transmission column, the top of the upper transmission column is fixedly connected with a plurality of touch sensors, and the inner side of the upper transmission column is slidably connected with an electric push rod.

[0010] As the preferred, the lower transmission column is sleeved with the lower transmission column below the transmission column, the lower end of the lower transmission column is provided with a second square hole, the width of the second square hole is matched with the width of the electric telescopic piece, the lower end of the lower transmission column is provided with a triangular annular groove, the shape of the triangular annular groove is matched with the shape of the electric telescopic piece, and the spring is sleeved between the bottom of the lower transmission column and the lower end of the rotating rod. The upper transmission column and the lower transmission column are attached, and the attached surfaces of the upper transmission column and the lower transmission column are in the shape of a wave and are engaged with each other.

[0011] As the invention is preferred, the outer wall of the threaded rod is threadedly connected with a sliding column, the sliding column is in a combined state of a cylindrical column and a square column, the size of the square column is matched with the size of a square hole, and the position of the sliding column is matched with the position of a touch sensor.

[0012] As the invention is preferred, the square column of the sliding column is fixedly connected with an extension rod at both sides of the upper end position, a sliding block is slidingly connected with the middle end of the extension rod, the sliding block is slidingly connected in an arcuate hole, a rotating block is rotatably connected with the end of the extension rod away from the sliding column, the position of the rotating block is in the same vertical plane as a triangular extension plate, the bottom of the rotating block is fixedly connected with an inverted F-shaped rod, a buckle ring is sleeved with the middle end of the outer wall of the inverted F-shaped rod, and the buckle ring is in the same vertical plane as a plurality of L-shaped rods.

[0013] As the invention is preferred, a dial ring is arranged at the bottom of the inverted F-shaped rod on both sides, a second telescopic rod is fixedly connected between the dial rings on both sides, a limiting block is fixedly connected with the inner side of the dial ring, and the limiting block is in the same vertical plane as the L-shaped rod.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. In the drill impact expansion hydraulic drilling machine, the side plates on both sides are fixed, and the angle is adjusted by using a hydraulic rod, so that the drill bit can smoothly punch a hole, and the hole expansion operation is performed at the same time, so that the hole expansion operation at different angles is realized.

[0015] 2. In the drill impact expansion hydraulic drilling machine, the sliding column is lowered, the L-shaped rod is locked by using the buckle column, the lower transmission column and the cross bar to ensure the stability of the expansion plate, so as to prevent vibration during drilling, which causes uneven punching of the expansion plate and causes damage to the buried pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole three-dimensional schematic view of the drill impact expansion hydraulic drilling machine of the present application. Figure 2 It is a schematic view of the end of the drill impact expansion hydraulic drilling machine of the present application. Figure 3 It is a schematic view of the end of the drill impact expansion hydraulic drilling machine of the present application. Figure 4 It is a schematic view of the end of the drill impact expansion hydraulic drilling machine of the present application. Figure 5 It is a schematic view of the end of the drill impact expansion hydraulic drilling machine of the present application. Figure 6 It is a schematic view of the locking assembly of the drill impact expansion hydraulic drilling machine of the present application. Figure 7 It is a schematic view of the locking assembly of the drill impact expansion hydraulic drilling machine of the present application. Figure 8 Figure 1 is a perspective view of the end head of the hydraulic drilling and punching expansion rig of the present application; The meanings of the various reference numbers in the figure are as follows: 1, drive rod; 11, first side plate; 111, hydraulic rod; 112, second side plate; 113, support column; 12, connecting pipe; 13, first gear; 131, second gear; 132, first motor; 2, end head; 21, second motor; 22, drill bit; 23, inner column; 231, arched hole; 232, triangular extension plate; 233, first fixed column; 234, second fixed column; 2341, first square hole; 24, strip-shaped hole; 241, L-shaped rod; 25, expansion plate; 251, first telescopic rod; 26, isolation chamber; 3, locking assembly; 31, rotating rod; 311, threaded rod; 312, electric telescopic part; 313, upper transmission column; 3131, touch sensor; 314, lower transmission column; 3141, second square hole; 3142, triangular annular groove; 315, spring; 32, sliding column; 321, extension rod; 322, sliding block; 323, rotating block; 324, inverted F-shaped rod; 3241, buckle ring; 325, actuating ring; 3251, second telescopic rod; 3252, limiting block. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0019] Embodiment one Please refer to Figures 1-8As shown, the present embodiment provides a kind of drill hydraulic drilling rig, including driving rod 1, one end of driving rod 1 is fixedly connected with end head 2, driving rod 1 is communicated with connecting pipe 12 at the end away from end head 2, the middle end of driving rod 1 is fixedly connected with No. Gear 13, one side of No. Gear 13 is engagedly connected with No. Gear 131, the bottom of No. Gear 131 is provided with No. Motor 132, No. Gear 131 is fixedly connected on the output end of No. Motor 132, the bottom of end head 2 is fixedly connected with drill bit 22, the top of drill bit 22 is fixedly connected with No. 2 motor 21, the position above drill bit 22 is provided with expansion plate 25, expansion plate 25 is slightly inclined state downward, No. 2 motor 21 is fixedly connected in the inside of driving rod 1, the inside of end head 2 is provided with locking assembly 3.

[0020] As Figure 1 Shown, the two sides of driving rod 1 are provided with No. Side plate 11, driving rod 1 is rotatably connected between two No. Side plate 11, the outside of No. Side plate 11 is rotatably connected with hydraulic rod 111, hydraulic rod 111 is rotatably connected with No. Side plate 112 at the end away from No. Side plate 111, the middle end of No. Side plate 112 is fixedly connected with support column 113, support column 113 is rotatably connected on the side of No. Side plate 111 at the end away from No. Side plate 112.

[0021] As Figures 3-5 Shown, the inside of end head 2 is fixedly connected with inner column 23, the two sides of outer wall of inner column 23 are provided with arch hole 231, the inner wall of end head 2 is fixedly connected with triangular extension plate 232, triangular extension plate 232 is located at the two sides of No. Arch hole 231, and they are parallel to each other, the inside of upper end of inner column 23 is fixedly connected with No. Fixed column 233, the inside of lower end of inner column 23 is fixedly connected with No. Fixed column 234, No. Square hole 2341 is formed in the surface of No. Fixed column 234, a plurality of strip holes 24 are formed in the lower end outer wall of end head 2, L-shaped rod 241 is rotatably connected with the inner wall of strip hole 24, the end of L-shaped rod 241 is inverted hook, and the top of L-shaped rod 241 is inclined, the other end of L-shaped rod 241 is provided with expansion plate 25, L-shaped rod 241 is rotatably connected in the inside of expansion plate 25, expansion plate 25 is composed of a plurality of arc plates, the inside of a plurality of arc plates is fixedly connected with No. Telescopic rod 251, a plurality of expansion plates 25 are combined to form complete annular expansion plate 25, the bottom inner wall of end head 2 is fixedly connected with isolation chamber 26.

[0022] Wherein: the outer wall of isolation chamber 26 is rotatably connected with a plurality of transverse rods movably connected with the outer wall of lower transmission column 314, and the other end of the transverse rod is matched with the position of L-shaped rod 241.

[0023] As Figures 6-7As shown, the locking assembly 3 comprises a rotating rod 31 fixedly connected to the output end of the second motor 21, a threaded rod 311 fixedly connected to the middle end of the rotating rod 31, an electric telescopic piece 312 electrically and telescopically connected to the end of the rotating rod 31 away from the second motor 21, an upper transmission column 313 fixedly connected to the outer wall of the lower end of the rotating rod 31, a plurality of touch sensors 3131 fixedly connected to the top of the upper transmission column 313, an electric push rod slidingly connected to the inner side of the upper transmission column 313, a lower transmission column 314 sleeved on the outer wall of the position below the upper transmission column 313, a second square hole 3141 formed in the lower end of the outer wall of the lower transmission column 314, the width of the second square hole 3141 being matched with the width of the electric telescopic piece 312, a triangular annular groove 3142 formed in the lower end of the inner wall of the lower transmission column 314, the shape of the triangular annular groove 3142 being matched with the shape of the electric telescopic piece 312, and a spring 315 sleeved on the outer wall between the bottom of the lower transmission column 314 and the lower end of the rotating rod 31, wherein the upper transmission column 313 and the lower transmission column 314 are attached to each other, and the attached surfaces of the upper transmission column 313 and the lower transmission column 314 are wavy and intermeshed.

[0024] As shown in Figure 6 the outer wall of the threaded rod 311 is threadedly connected with a sliding column 32, the sliding column 32 is in a combined state of a cylindrical column and a square column, the size of the square column is matched with the size of the first square hole 2341, the position of the sliding column 32 is matched with the position of the touch sensor 3131, two extension rods 321 are fixedly connected to the upper end positions of the square column of the sliding column 32, a sliding block 322 is slidingly connected to the middle end of each extension rod 321, the sliding block 322 is slidingly connected in the arcuate hole 231, a rotating block 323 is rotatably connected to the end of each extension rod 321 away from the sliding column 32, the position of the rotating block 323 is on the same vertical plane as the triangular extension plate 232, a reverse F-shaped rod 324 is fixedly connected to the bottom of the rotating block 323, a buckle ring 3241 is sleeved on the outer wall of the middle end of the reverse F-shaped rod 324, the buckle ring 3241 is on the same vertical plane as the plurality of L-shaped rods 241, a dial ring 325 is arranged at the bottom of each reverse F-shaped rod 324, a second telescopic rod 3251 is fixedly connected between the two dial rings 325, a limiting block 3252 is fixedly connected to the inner side of each dial ring 325, and the limiting block 3252 is on the same vertical plane as the L-shaped rod 241.

[0025] Therefore, when the drilling machine is working, it is necessary to ensure that the drilling machine has the functions of drilling, punching and expanding, as shown in Figures 1-5 in the preparation stage, the two second side plates 112 of the device are fixed inside the externally arranged fixing device, and then the orientation of the end head 2 is adjusted by the staff adjusting the plurality of hydraulic rods 111 on both sides, so that drilling at different angles can be realized; When drilling is needed, the second gear 131 drives the first gear 13 and the driving rod 1 to rotate together under the drive of the first motor 132, and the driving rod 1 drives the end head 2 and the drill bit 22 to rotate together to drill a hole. During the drilling process, if the hole needs to be expanded, the worker starts the second motor 21. At this time, the rotating rod 31 drives the threaded rod 311 to rotate together under the drive of the second motor 21. At this time, the threaded rod 311 drives the sliding column 32 to slide downward, and at the same time, the sliding column 32 drives the extension rods 321, the rotating blocks 323 and the inverted F-shaped rods 324 on both sides to move downward together. Similarly, the inverted F-shaped rods 324 drive the buckle rings 3241 and the actuating rings 325 to move downward together. When the actuating ring 325 slides to the top inclined surface of the L-shaped rod 241, the top inclined surface of the L-shaped rod 241 is extruded, so that the plurality of L-shaped rods 241 are rotated inward. At this time, the L-shaped rods 241 drive the expansion plates 25 on the outside to expand outward during the rotation. At this time, the expansion plates 25 stop expanding outward to a position above the drill bit 22. The diameter of the expansion plates 25 is greater than the diameter of the drill bit 22. The expansion plates 25 expand the hole drilled; Considering the stability of the expansion plates 25, the plurality of expansion plates 25 are expanded outward without rotating by the extension and contraction of the second extension rod 3251. The second extension rod 3251 is driven to extend when the expansion plates 25 expand outward, and the second extension rod 3251 also contracts when the expansion plates 25 contract inward. Similarly, after the buckle rings 3241 and the actuating rings 325 move to the position of the L-shaped rods 241 and drive the L-shaped rods 241 to rotate by a certain angle, the upper end hooks of the L-shaped rods 241 also rotate, so that the buckle rings 3241 and the actuating rings 325 gradually move to the bottom of the hooks of the L-shaped rods 241. At this time, the L-shaped rods 241 are fixed at this angle and cannot be reduced in angle. When the sliding column 32 moves downward to the top of the lower transmission rod 314, the touch sensor 3131 at the top of the upper transmission rod 313 is extruded. At this time, the touch sensor 3131 drives the push rod to move the lower transmission rod 314 downward. At the same time, the touch sensor 3131 makes the electric telescopic member 312 extend outward. The triangular ring groove 3142 at the lower end of the lower transmission rod 314 moves downward together. At this time, when the triangular ring groove 3142 slides to the position of the electric telescopic member 312, the electric telescopic member 312 is clamped in the triangular ring groove 3142; At this time, the lower transmission column 314 will no longer be attached to the upper transmission column 313, and the upper transmission column 313 will not drive the lower transmission column 314 to rotate, and will be clamped in the position of the electric telescopic part 312, and in the process of moving down the lower transmission column 314, it will drive the cross rod to the isolation chamber 26 as a fulcrum, so that the cross rod is located outside the isolation chamber 26 and is upturned, and the inner side of the L-shaped rod 241 is fixed, as described above, and the buckle ring 3241 and the push ring 325 are used to fix the barb position of the L-shaped rod 241, so that the L-shaped rod 241 is completely fixed, that is, the expansion plate 25 is completely locked and cannot be moved, which greatly increases the stability of the expansion plate 25 in the process of expanding the hole, so as to prevent the expansion plate 25 from being unevenly punched due to vibration during drilling; Similarly, a spray gun can be installed at the position between the expansion plates 25, and connected with the connecting pipe 12, and high-pressure water flow is sprayed into the hole to impact and break the rock, which is used for assisting drilling and slag removal.

[0026] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A drilling, punching and expanding hydraulic drilling rig, comprising a driving rod (1), characterized in that: One end of the driving rod (1) is fixedly connected to the end head (2), and the driving rod (1) is connected to a connecting pipe (12) at the end away from the end head (2). The middle end of the driving rod (1) is fixedly connected to a No. 1 gear (13), and one side of the No. 1 gear (13) is meshedly connected to a No. 2 gear (131). A No. 1 motor (132) is provided at the bottom of the No. 2 gear (131), and the No. 2 gear (131) is fixedly connected to the output end of the No. 1 motor (132). The bottom of the end head (2) is fixedly connected to a drill bit (22), the top of the drill bit (22) is fixedly connected to a second motor (21), an expansion plate (25) is provided above the drill bit (22), and the expansion plate (25) is slightly tilted downward, the second motor (21) is fixedly connected to the inner side of the driving rod (1), and a locking assembly (3) is provided on the inner side of the end head (2).

2. The drilling, percussion and expansion hydraulic drilling rig according to claim 1, characterized in that: A No. 1 side plate (11) is provided on both sides of the driving rod (1), and the driving rod (1) is rotatably connected between the No. 1 side plates (11) on both sides. The outer side of the No. 1 side plate (11) is rotatably connected to a hydraulic rod (111), and the hydraulic rod (111) is rotatably connected to a No. 2 side plate (112) at one end away from the No. 1 side plate (111). A support column (113) is fixedly connected to the middle end of the No. 2 side plate (112), and the support column (113) is rotatably connected to one side of the No. 1 side plate (111) at one end away from the No. 2 side plate (112).

3. The drilling, percussion and expansion hydraulic drilling rig according to claim 2, characterized in that: The inner side of the end head (2) is fixedly connected to an inner column (23), and arched holes (231) are provided on the outer walls of both sides of the inner column (23). The inner wall of the end head (2) is fixedly connected to a triangular extension plate (232), and the triangular extension plate (232) is located on both sides of the first arched hole (231), and the two are parallel to each other. The inner side of the upper end of the inner column (23) is fixedly connected to the first fixing column (233), and the inner side of the lower end of the inner column (23) is fixedly connected to the second fixing column (234), and the surface of the second fixing column (234) is provided with a first square hole (2341).

4. The drilling, percussion and expansion hydraulic drilling rig according to claim 3, characterized in that: The outer wall of the lower end of the end head (2) is provided with a plurality of strip-shaped holes (24). The end head (2) is rotatably connected to an L-shaped rod (241) on the inner wall of the strip-shaped hole (24). One end of the L-shaped rod (241) is in an inverted hook shape, and the top of the L-shaped rod (241) is in an inclined surface. The other end of the L-shaped rod (241) is provided with an expansion plate (25). The L-shaped rod (241) is rotatably connected to the inner side of the expansion plate (25).

5. The drilling, percussion and expansion hydraulic drilling rig according to claim 4, characterized in that: The expansion plate (25) is composed of a plurality of arc-shaped plates, the inner sides of the plurality of arc-shaped plates are fixedly connected to a first telescopic rod (251), and the plurality of expansion plates (25) are combined to form a complete circular expansion plate (25), and the bottom inner wall of the end head (2) is fixedly connected to an isolation chamber (26).

6. The drilling, percussion and expansion hydraulic drilling rig according to claim 5, characterized in that: The locking assembly (3) comprises a rotating rod (31), the rotating rod (31) being fixedly connected to the output end of the second motor (21), a threaded rod (311) being fixedly connected to the middle end of the rotating rod (31), an electric telescopic member (312) being electrically telescopically connected to the end of the rotating rod (31) away from the second motor (21), an upper transmission column (313) being fixedly connected to the outer wall of the lower end of the rotating rod (31), a plurality of touch sensors (3131) being fixedly connected to the top of the upper transmission column (313), and an electric push rod being slidably connected to the inner side of the upper transmission column (313).

7. The drilling, percussion and expansion hydraulic drilling rig according to claim 6, characterized in that: The rotating rod (31) is provided with a lower transmission column (314) on its outer wall below the transmission column (313), and a second square hole (3141) is provided on the outer wall of the lower end of the lower transmission column (314), the width of which matches the width of the electric telescopic component (312), and a triangular annular groove (3142) is provided on the inner wall of the lower end of the lower transmission column (314), the shape of which matches the shape of the electric telescopic component (312), and a spring (315) is provided on the outer wall between the bottom of the lower transmission column (314) and the lower end of the rotating rod (31), wherein: The upper transmission column (313) and the lower transmission column (314) are in contact with each other, and the contacting surfaces of the two are both wavy and meshed with each other.

8. The drilling, percussion and expansion hydraulic drilling rig according to claim 7, characterized in that: The outer wall of the threaded rod (311) is threadedly connected to a sliding column (32), and the sliding column (32) is in a state of a combination of a cylinder and a square column. The size of the square column matches the size of the No. 1 square hole (2341), and the position of the sliding column (32) matches the position of the touch sensor (3131).

9. The drilling, percussion and expansion hydraulic drilling rig according to claim 8, characterized in that: Extension rods (321) are fixedly connected to both sides of the upper end of the square column of the sliding column (32); a slider (322) is slidably connected to the middle end of the extension rod (321); the slider (322) is slidably connected in the arched hole (231); the extension rod (321) is rotatably connected to a rotating block (323) at one end away from the sliding column (32); the position of the rotating block (323) and the triangular extension plate (232) are on the same vertical plane; the bottom of the rotating block (323) is fixedly connected to an inverted F-shaped rod (324); the outer wall of the middle end of the inverted F-shaped rod (324) is provided with a snap ring (3241); the snap ring (3241) and the plurality of L-shaped rods (241) are on the same vertical plane.

10. The drilling, percussion and expansion hydraulic drilling rig according to claim 9, characterized in that: A toggle ring (325) is provided at the bottom of the inverted F-shaped rod (324) on both sides, a second telescopic rod (3251) is fixedly connected between the toggle rings (325) on both sides, and a limiting block (3252) is fixedly connected to the inner side of the toggle ring (325), and the limiting block (3252) and the L-shaped rod (241) are located on the same vertical plane.

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