Deepened drilling equipment for geological survey

Abstract

The invention discloses deepening type drilling equipment for geological survey, and belongs to the technical field of geological drilling. The deepening type drilling equipment for geological survey comprises a drill bit, a drill bushing and a sampling pipe, and further comprises a plug arranged at one end, close to the drill bit, in a pipe hole of the sampling pipe, the plug is used for plugging the pipe hole of the sampling pipe, and the plug can slide in the pipe hole of the sampling pipe; the mortise and tenon mechanism is arranged in the drill sleeve, the mortise and tenon mechanism abuts against the end, away from the drill bit, of the plug, and the mortise and tenon mechanism is used for limiting movement of the plug; the water power mechanism is connected with the mortise and tenon mechanism, the water power mechanism is communicated with a water supply device, and when the pressure of water flow conveyed to the water power mechanism by the water supply device is higher than a preset value, the water power mechanism drives the mortise and tenon mechanism to act, so that the mortise and tenon mechanism relieves limitation on movement of the plug. According to the deepening type drilling equipment for geological survey, the purity of a rock-soil sample in the sampling pipe can be guaranteed when rock-soil sampling is carried out on a deep predetermined stratum.

Description

Technical Field

[0001] The invention relates to the technical field of geological drilling, and in particular to a deepening drilling device for geological survey. Background Art

[0002] Site survey is an important means to understand underground geological structure, mineral resource distribution and other information. Drilling is a key technology for obtaining deep geological samples, and its equipment performance directly affects the accuracy and efficiency of the survey. Deep drilling equipment can break through the depth limit of traditional drilling and meet the needs of deep geological exploration. It plays an important role in the exploration of resources such as oil, natural gas, and minerals, as well as geological research.

[0003] The core components of the existing drilling equipment for geological survey include a drill bit, a drill sleeve and a sampling tube. The drill bit is connected to the drill sleeve, the drill sleeve is connected to the drilling rig, the sampling tube is arranged in the drill sleeve, and the drill bit is provided with a sampling port, which is connected to the tube hole of the sampling tube. When in use, the drilling rig is used to drive the drill sleeve to rotate, thereby driving the drill bit to rotate, so as to drive the drill bit to drill into the formation to be sampled. During this process, the rock head sample located below the sampling port of the drill bit can enter the sampling tube through the sampling port, thereby completing the sampling.

[0004] However, when using the above-mentioned drilling equipment to sample deep rock and soil, as the drill bit drills into the deep strata, the rock and soil cuttings produced by the drill bit will enter the sampling tube in advance, resulting in the rock and soil samples in the sampling tube being of low purity, making it difficult for the sampled rock and soil samples to accurately reflect the geological conditions of the deep strata. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and to provide a deepening drilling device for geological survey, which can ensure the purity of rock and soil samples in a sampling tube when sampling rock and soil in a predetermined deep stratum.

[0006] The present invention provides a deepening drilling equipment for geological survey, comprising a drill bit, a drill sleeve and a sampling tube, wherein the sampling tube is arranged in the drill sleeve, the drill bit is connected to the drill sleeve, and further comprising:

[0007] A plug is arranged in the tube hole of the sampling tube near one end of the drill bit, and the plug is used to seal the tube hole of the sampling tube, and the plug can slide in the tube hole of the sampling tube;

[0008] A tenon mechanism is provided in the drill sleeve, the tenon mechanism abuts against an end of the plug away from the drill bit, and is used to limit the movement of the plug;

[0009] The hydraulic mechanism is connected to the tenon mechanism, and the hydraulic mechanism is connected to a water supply device. When the water flow pressure delivered by the water supply device to the hydraulic mechanism is higher than a predetermined value, the hydraulic mechanism drives the tenon mechanism to operate, so that the tenon mechanism releases the restriction on the movement of the plug.

[0010] Preferably, the tenon mechanism includes a block and a turntable, the side wall of the sampling tube is provided with a sliding hole along its radial direction, the block is slidably connected in the sliding hole, one end of the block can abut against the end of the plug away from the drill bit, the turntable is rotatably connected between the outer wall of the sampling tube and the inner wall of the drill sleeve, the turntable is connected to the hydrodynamic mechanism, the turntable is provided with a first cam groove, a first slider is slidably connected in the first cam groove, the first slider is connected to the other end of the block, when the water flow pressure delivered by the water supply device increases, the hydrodynamic mechanism drives the turntable to rotate, and the turntable drives the block to move to the side away from the plug through the first cam groove and the first slider.

[0011] Preferably, the water power mechanism includes a water stop block and a connecting rod, the water stop block is slidably connected to the sleeve hole of the drill sleeve, the water flow supplied by the water supply device can drive the water stop block to move toward one end close to the drill bit, a spring is provided in the drill sleeve, the spring abuts against the water stop block, the spring is used to apply an elastic force to the water stop block that is opposite to the direction of the water flow velocity, one end of the connecting rod is connected to the water stop block, and the other end of the connecting rod is provided with a second cam groove, a second slider is slidably connected in the second cam groove, the second slider is connected to the turntable, and the water stop block drives the turntable to rotate via the second cam groove and the second slider.

[0012] Preferably, a sliding rod is connected to the water stop block, and a pressure block is provided at the end of the sampling tube away from the drill bit. The pressure block is connected to the water stop block through the sliding rod, and the spring is arranged outside the sliding rod, one end of the spring abuts against the water stop block, and the other end of the spring abuts against the outer wall of the sampling tube. When the rock and soil sample enters the tube hole of the sampling tube, the rock and soil sample drives the plug to move toward the end away from the drill bit, and the plug can abut against the pressure block and push the water stop block to move toward the end away from the drill bit through the pressure block and the sliding rod until the end of the block away from the second slider extends into the tube hole of the sampling tube.

[0013] Preferably, the drill bit is provided with a nozzle, the casing hole of the drill sleeve is provided with a water pipe, and the water supply device is connected with the nozzle through the water pipe and the casing hole of the drill sleeve.

[0014] Preferably, the water retaining block is provided with a plugging block toward one end of the water pipe. When the rock and soil sample fills the sampling tube, the plugging head pushes the water retaining block to move until the plugging block is inserted into the pipe hole of the water pipe to seal the pipe hole of the water pipe.

[0015] Preferably, the plug is provided with cutting teeth at one end facing the drill bit, and is provided with a dovetail tenon arranged radially along the sampling tube at one end away from the drill bit. The clamping block is provided with a dovetail groove along the radial direction of the sampling tube, and the dovetail groove is slidably connected to the dovetail tenon.

[0016] Preferably, a sealing member is provided on the plug, and the sealing member is in close contact with the tube hole of the sampling tube.

[0017] Preferably, the end of the clamping block facing the inside of the sampling tube hole is a wedge-shaped structure.

[0018] Preferably, the inner wall of the tube hole of the sampling tube is provided with a wear-resistant coating.

[0019] Compared with the prior art, the beneficial effect of the present invention is as follows: the deepening drilling equipment for geological survey of the present invention can increase the water flow pressure of the water flow input into the water inlet power mechanism by controlling the water supply flow speed of the water supply device when the drill bit drills into the predetermined stratum, until the delivered water flow pressure is higher than the predetermined value, the water power mechanism drives the tenon mechanism to move, so as to release the restriction on the movement of the plug, and the drill bit removes the rock and soil around the sampling tube, and the rock head in the area directly facing the sampling tube extends into the sampling tube as the drill bit drills, thereby driving the plug to move into the sampling tube until the rock and soil sample fills the sampling tube, and then the drill sleeve is lifted by the drilling rig to complete the rock and soil sampling. Therefore, the equipment can seal the sampling tube before the drill bit drills into the stratum to be sampled, preventing drill cuttings from entering the sampling tube, so that the equipment can ensure the purity of the rock and soil sample in the sampling tube when sampling the rock and soil of the predetermined stratum in the deep layer.

[0020] The tenon mechanism of the device can limit the plug before the drill bit reaches the predetermined stratum to prevent the plug from moving into the sampling tube, and when the water flow pressure delivered by the water supply device increases, the limit on the plug is promptly released, so that the device can accurately obtain rock and soil samples from the deep predetermined stratum. When the sampling tube is full of rock and soil samples, the pressing block squeezes the rock and soil samples in the sampling tube to cut off the rock and soil samples in the sampling tube, and after the pressing block is inserted into the tube hole of the sampling tube, it can limit the rock and soil samples in the sampling tube, so as to prevent the rock and soil samples from slipping out of the sampling tube when the drill sleeve is lifted, thereby ensuring the integrity of the rock and soil samples in the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the first main section of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the second main section of the present invention;

[0023] Figure 3 It is a schematic diagram of the AA surface structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the BB surface structure of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the card block of the present invention.

[0026] Description of reference numerals:

[0027] 101. drill bit, 102. drill sleeve, 103. sampling tube, 104. plug, 105. tenon mechanism, 106. hydraulic mechanism, 201. block, 202. turntable, 203. slide hole, 204. first cam groove, 205. first slider, 301. water retaining block, 302. connecting rod, 303. spring, 304. second cam groove, 305. second slider, 401. slide rod, 402. pressure block, 501. nozzle, 502. water pipe, 6. plug, 701. cutting tooth, 702. dovetail tenon, 703. dovetail groove, 8. sealing member. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 5 , the specific implementation of the present invention is described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] like Figure 1-Figure 5 As shown, the present invention provides a deepening drilling equipment for geological survey, including a drill bit 101, a drill sleeve 102 and a sampling tube 103, wherein the sampling tube 103 is arranged in the drill sleeve 102, and the drill bit 101 is connected to the drill sleeve 102, and further includes: a plug 104, a tenon mechanism 105 and a water power mechanism 106, wherein the plug 104 is arranged in the tube hole of the sampling tube 103 near one end of the drill bit 101, and the plug 104 is used to block the tube hole of the sampling tube 103, and the plug 104 can slide in the tube hole of the sampling tube 103; The tenon mechanism 105 is arranged in the drill sleeve 102, and the tenon mechanism 105 abuts against the end of the plug 104 away from the drill bit 101, and the tenon mechanism 105 is used to limit the movement of the plug 104; the hydraulic mechanism 106 is connected to the tenon mechanism 105, and the hydraulic mechanism 106 is connected to a water supply device. When the water flow pressure delivered by the water supply device to the hydraulic mechanism 106 is higher than a predetermined value, the hydraulic mechanism 106 drives the tenon mechanism 105 to operate, so that the tenon mechanism 105 releases the restriction on the movement of the plug 104.

[0030] The working principle of the above embodiment is briefly described:

[0031] When the device is in use, the drill sleeve 102 is first connected to the drilling rig, and the drill sleeve 102 is driven to rotate by the drilling rig, thereby driving the drill bit 101 to rotate, and the drill bit 101 is used to drill into the predetermined formation to be sampled, thereby driving the sampling tube 103 to drill into the predetermined formation. In this process, due to the limiting effect of the tenon mechanism 105, the plug 104 can be prevented from sliding into the sampling tube 103, thereby preventing debris from entering the sampling tube 103 when the drill bit 101 is drilling. When the drill bit 101 drills into the predetermined stratum, by controlling the water flow rate of the water supply device, when the water flow rate of the water supply device increases, the water flow pressure of the water flow input into the water inlet power mechanism 106 increases until the delivered water flow pressure is higher than the predetermined value, the water power mechanism 106 drives the tenon mechanism 105 to operate to release the restriction on the movement of the plug 104. At this time, as the drill bit 101 continues to drill, the drill bit 101 removes the rock and soil around the sampling tube 103, and the rock head in the area directly facing the sampling tube 103 extends into the sampling tube 103 as the drill bit 101 drills, thereby driving the plug 104 to move into the sampling tube 103 until the rock and soil sample fills the sampling tube 103, and then the drill sleeve 102 is lifted by the drilling rig to complete the rock and soil sampling.

[0032] The deepening drilling equipment for geological survey of the present invention can seal the sampling tube 103 before the drill bit 101 drills into the stratum to be sampled, preventing drill cuttings from entering the sampling tube 103, thereby ensuring the purity of the rock and soil samples in the sampling tube 103 when the equipment is sampling rock and soil in a predetermined deep stratum.

[0033] On the basis of the above-mentioned embodiment, in order to release the limit of the plug 104 in time when the water flow pressure delivered by the water supply device increases, the device can accurately obtain rock and soil samples of the deep predetermined strata.

[0034] like Figure 1-Figure 3 and Figure 5 As shown, the tenon mechanism 105 includes a block 201 and a turntable 202, the side wall of the sampling tube 103 is provided with a sliding hole 203 along its radial direction, the block 201 is slidably connected in the sliding hole 203, one end of the block 201 can abut against the end of the plug 104 away from the drill bit 101, the turntable 202 is rotatably connected between the outer wall of the sampling tube 103 and the inner wall of the drill sleeve 102, the turntable 202 is connected to the water power mechanism 106, the turntable 202 is provided with a first cam groove 204, the first cam groove 204 is slidably connected with a first slider 205, the first slider 205 is connected to the other end of the block 201, when the water flow pressure delivered by the water supply device increases, the water power mechanism 106 drives the turntable 202 to rotate, and the turntable 202 drives the block 201 to move to the side away from the plug 104 through the first cam groove 204 and the first slider 205.

[0035] When the drill bit 101 is drilling into a predetermined formation, one end of the block 201 facing the axis of the sampling tube 103 passes through the sliding hole 203 and abuts against the plug 104 , thereby limiting the plug 104 and preventing the plug 104 from moving into the tube hole of the sampling tube 103 . When the drill bit 101 drills into the predetermined stratum, the water pressure delivered by the water supply device is controlled to increase, and the hydraulic power drives the hydraulic mechanism 106 to operate. The hydraulic mechanism 106 drives the turntable 202 to rotate forward, and the turntable 202 drives the first cam groove 204 thereon to rotate forward. When the first cam groove 204 rotates forward, the first slider 205 drives the block 201 to move in the sliding hole 203 toward the side away from the axis of the sampling tube 103 until the block 201 completely slides into the sliding hole 203, and the block 201 is out of contact with the plug 104, thereby releasing the restriction on the position of the plug 104, so that the plug 104 can slide into the sampling tube 103 for sampling. The latch mechanism 105 of the device can limit the plug 104 before the drill bit 101 reaches the predetermined stratum to prevent the plug 104 from moving into the sampling tube 103, and when the water pressure delivered by the water supply device increases, the limit on the plug 104 is released in time, so that the device can accurately obtain rock and soil samples from the deep predetermined stratum.

[0036] As a preferred solution, Figure 1-Figure 4As shown, the water power mechanism 106 includes a water retaining block 301 and a connecting rod 302, wherein the water retaining block 301 is slidably connected to the sleeve hole of the drill sleeve 102, and the water flow supplied by the water supply device can drive the water retaining block 301 to move toward one end close to the drill bit 101, and a spring 303 is provided in the drill sleeve 102, and the spring 303 abuts against the water retaining block 301, and the spring 303 is used to apply an elastic force opposite to the direction of the water flow velocity to the water retaining block 301, one end of the connecting rod 302 is connected to the water retaining block 301, and the other end of the connecting rod 302 is provided with a second cam groove 304, and a second slider 305 is slidably connected in the second cam groove 304, and the second slider 305 is connected to the turntable 202, and the water retaining block 301 drives the turntable 202 to rotate through the second cam groove 304 and the second slider 305. When the drill bit 101 drills into a predetermined formation, the water pressure of the water flow supplied by the water supply device to the casing hole of the drill sleeve 102 is relatively small, and the thrust applied by the water flow to the water retaining block 301 is relatively small. At this time, the pressure applied by the water retaining block 301 to the spring 303 is relatively small, and the compression of the spring 303 is relatively small. The connecting rod 302 is in a working position away from one end of the drill bit 101. The second cam groove 304 on the connecting rod 302 limits the turntable 202 through the second slider 305 to prevent the turntable 202 from rotating, thereby ensuring that the block 201 can limit the plug 104. When the drill bit 101 drills into the predetermined stratum, the water pressure of the water flow supplied by the water supply device to the casing hole of the drill sleeve 102 increases, the thrust applied by the water flow to the water retaining block 301 increases, the pressure applied by the water retaining block 301 to the spring 303 increases, the water retaining block 301 moves toward one end close to the drill bit 101, the compression of the spring 303 increases, and the water retaining block 301 drives the connecting rod 302 to move toward one end close to the drill bit 101. When the water flow pressure delivered by the water supply device is higher than the predetermined value, the connecting rod 302 is in the working position close to one end of the drill bit 101, and the connecting rod 302 drives the turntable 202 to rotate forward through the second cam groove 304 and the second slider 305, thereby driving the block 201 to move to the side away from the axis of the sampling tube 103, so that the block 201 releases the limiting effect on the plug 104.

[0037] As a preferred solution, Figure 1 and Figure 2As shown, a slide bar 401 is connected to the water retaining block 301, and a pressure block 402 is provided at one end of the sampling tube 103 away from the drill bit 101. The pressure block 402 is connected to the water retaining block 301 through the slide bar 401. The spring 303 is arranged outside the slide bar 401, one end of the spring 303 abuts against the water retaining block 301, and the other end of the spring 303 abuts against the outer wall of the sampling tube 103. When the rock and soil sample enters the tube hole of the sampling tube 103, the rock and soil sample drives the plug 104 to move away from the drill bit 101. The plug 104 can abut against the pressure block 402 and push the water retaining block 301 to move away from the drill bit 101 through the pressure block 402 and the slide bar 401 until the end of the block 201 away from the second slider 305 extends into the tube hole of the sampling tube 103. When the sampling tube 103 is filled with rock and soil samples, the rock and soil drive plug 104 squeezes the pressing block 402. When the pressing block 402 is squeezed, the pressing block 402 drives the water retaining block 301 to move away from the drill bit 101 through the sliding rod 401, thereby driving the connecting rod 302 to move away from the drill bit 101. The connecting rod 302 drives the rotating disk 202 to reverse through the second cam groove 304 and the second slider 305. The rotating disk 202 drives the first cam groove 204 to reverse. Under the action of the slider 205, the pressing block 402 moves toward the side close to the axis of the sampling tube 103, so that the rock and soil sample in the sampling tube 103 is squeezed by the pressing block 402 to cut off the rock and soil sample in the sampling tube 103, and after the pressing block 402 extends into the tube hole of the sampling tube 103, it can limit the rock and soil sample in the sampling tube 103, so as to prevent the rock and soil sample from slipping out of the sampling tube 103 when the drill sleeve 102 is lifted, thereby ensuring the integrity of the rock and soil sample in the sampling tube 103.

[0038] As a preferred solution, Figure 1 , Figure 2 and Figure 5 As shown, the drill bit 101 is provided with a nozzle 501, the casing hole of the drill sleeve 102 is provided with a water pipe 502, and the water supply device is connected with the nozzle 501 through the water pipe 502 and the casing hole of the drill sleeve 102. When the drill bit 101 is drilling into a predetermined formation, the water supply device supplies water to the nozzle 501 through the water pipe 502 and the casing hole of the drill sleeve 102, and the water is ejected from the nozzle 501, thereby cooling the drill bit 101, thereby ensuring that the drill bit 101 continuously and stably drills into the predetermined formation.

[0039] As a preferred solution, Figure 1 , Figure 2 and Figure 4As shown, the water retaining block 301 is provided with a plug 6 at one end facing the water pipe 502. When the rock and soil sample fills the sampling tube 103, the plug 104 pushes the water retaining block 301 to move until the plug 6 is inserted into the pipe hole of the water pipe 502 to block the pipe hole of the water pipe 502. By setting the plug block 6, the rock and soil sample drives the plug 104 to move into the sampling tube 103 until the plug 104 abuts against the pressure block 402. The plug 104 drives the water retaining block 301 to move away from the end of the drill bit 101, that is, close to the end of the water pipe 502, through the pressure block 402 and the slide bar 401. The water retaining block 301 drives the plug block 6 to move close to the end of the water pipe 502 until the rock and soil sample fills the sampling tube 103. When the sampling tube 103 is filled, the plug block 6 is inserted into the pipe hole of the water pipe 502, thereby blocking the pipe hole of the water pipe 502, and the nozzle 501 on the drill bit 101 no longer sprays water, thereby preventing the water flow sprayed from the nozzle 501 from continuously impacting the rock and soil sample in the sampling tube 103, thereby further ensuring the integrity of the rock and soil sample in the sampling tube 103.

[0040] As a preferred solution, Figure 1-Figure 3 and Figure 5 As shown, the plug 104 is provided with a cutting tooth 701 at one end facing the drill bit 101, and the plug 104 is provided with a dovetail tenon 702 arranged along the radial direction of the sampling tube 103 at one end away from the drill bit 101, and the clamping block 201 is provided with a dovetail groove 703 along the radial direction of the sampling tube 103, and the dovetail groove 703 is slidably connected with the dovetail tenon 702. By providing the dovetail groove 703 and the dovetail tenon 702, when the drill bit 101 drills into a predetermined formation, the dovetail tenon 702 on the plug 104 is connected with the dovetail groove 703 on the clamping block 201, and during the drilling process of the drill bit 101, the plug 104 can be driven to rotate through the dovetail groove 703 and the dovetail tenon 702, thereby driving the cutting tooth 701 to rotate, thereby assisting the drill bit 101 to drill the rock formation, and improving the drilling capacity of the entire device.

[0041] As a preferred solution, Figure 1 and Figure 2 As shown, the plug 104 is provided with a seal 8, and the seal 8 is in close contact with the tube hole of the sampling tube 103. By providing the seal 8, the sealing between the plug 104 and the tube hole of the sampling tube 103 can be improved, thereby further preventing the drill cuttings from entering the sampling tube 103 during the drilling process of the drill bit 101, and further ensuring the purity of the rock and soil samples.

[0042] As a preferred solution, Figure 5As shown, the end of the clamping block 201 facing the tube hole of the sampling tube 103 is a wedge-shaped structure. By setting the end of the clamping block 201 facing the tube hole of the sampling tube 103 as a wedge-shaped structure, when the clamping block 402 cuts off the rock and soil sample in the sampling tube 103, the pressure applied by the clamping block 402 on the rock and soil sample can be increased, thereby ensuring that the clamping block 402 can cut off the hard rock and soil sample.

[0043] As a preferred solution, Figure 1 As shown, a wear-resistant coating is provided on the inner wall of the tube hole of the sampling tube 103. By providing the wear-resistant coating on the inner wall of the tube hole of the sampling tube 103, the wear resistance of the sampling tube 103 can be improved, thereby improving the durability of the entire device.

[0044] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A deep drilling device for geological survey, comprising a drill bit (101), a drill sleeve (102) and a sampling tube (103), wherein the sampling tube (103) is arranged in the drill sleeve (102), and the drill bit (101) is connected to the drill sleeve (102), characterized in that: Also includes: A plug (104) is arranged in the tube hole of the sampling tube (103) near one end of the drill bit (101), and the plug (104) is used to seal the tube hole of the sampling tube (103). The plug (104) can slide in the tube hole of the sampling tube (103); A latch mechanism (105) is disposed in the drill sleeve (102), wherein the latch mechanism (105) abuts against an end of the plug (104) away from the drill bit (101), and the latch mechanism (105) is used to limit the movement of the plug (104); The water power mechanism (106) is connected to the latch mechanism (105). The water power mechanism (106) is connected to a water supply device. When the water flow pressure delivered by the water supply device to the water power mechanism (106) is higher than a predetermined value, the water power mechanism (106) drives the latch mechanism (105) to move, so that the latch mechanism (105) releases the restriction on the movement of the plug (104).

2. The deep drilling equipment for geological survey according to claim 1, characterized in that: The latch mechanism (105) comprises a block (201) and a rotating disk (202); a sliding hole (203) is provided in the radial direction of the side wall of the sampling tube (103); the block (201) is slidably connected in the sliding hole (203); one end of the block (201) can abut against an end of the plug (104) away from the drill bit (101); the rotating disk (202) is rotatably connected between the outer wall of the sampling tube (103) and the inner wall of the drill sleeve (102); the rotating disk (202) and the water power mechanism (106) are connected to each other. ), the rotating disk (202) is provided with a first cam groove (204), a first slider (205) is slidably connected in the first cam groove (204), and the first slider (205) is connected to the other end of the block (201); when the pressure of the water flow delivered by the water supply device increases, the water power mechanism (106) drives the rotating disk (202) to rotate, and the rotating disk (202) drives the block (201) to move to a side away from the plug (104) through the first cam groove (204) and the first slider (205).

3. The deep drilling equipment for geological survey according to claim 1, characterized in that: The water power mechanism (106) comprises a water retaining block (301) and a connecting rod (302); the water retaining block (301) is slidably connected to the sleeve hole of the drill sleeve (102); the water flow supplied by the water supply device can drive the water retaining block (301) to move toward one end close to the drill bit (101); a spring (303) is arranged in the drill sleeve (102); the spring (303) abuts against the water retaining block (301); the spring (303) is used to apply pressure to the water retaining block (301) An elastic force in the opposite direction to the water flow velocity is applied, one end of the connecting rod (302) is connected to the water retaining block (301), the other end of the connecting rod (302) is provided with a second cam groove (304), a second slider (305) is slidably connected in the second cam groove (304), the second slider (305) is connected to the rotating disk (202), and the water retaining block (301) drives the rotating disk (202) to rotate through the second cam groove (304) and the second slider (305).

4. The deep drilling equipment for geological survey according to claim 3, characterized in that: The water retaining block (301) is connected to a slide bar (401); a pressure block (402) is provided at one end of the sampling tube (103) away from the drill bit (101); the pressure block (402) is connected to the water retaining block (301) via the slide bar (401); the spring (303) is arranged outside the slide bar (401); one end of the spring (303) abuts against the water retaining block (301); and the other end of the spring (303) abuts against the outside of the sampling tube (103). When the rock and soil sample enters the tube hole of the sampling tube (103), the rock and soil sample drives the plug (104) to move away from the end of the drill bit (101), and the plug (104) can abut against the pressing block (402) and push the water retaining block (301) to move away from the end of the drill bit (101) through the pressing block (402) and the sliding rod (401), until the end of the clamping block (201) away from the second sliding block (305) extends into the tube hole of the sampling tube (103).

5. The deep drilling equipment for geological survey according to claim 1, characterized in that: The drill bit (101) is provided with a nozzle (501), the casing hole of the drill sleeve (102) is provided with a water pipe (502), and the water supply device is connected with the nozzle (501) through the water pipe (502) and the casing hole of the drill sleeve (102).

6. The deep drilling equipment for geological survey according to claim 5, characterized in that: The water retaining block (301) is provided with a plugging block (6) at one end facing the water pipe (502). When the rock and soil sample fills the sampling tube (103), the plug (104) pushes the water retaining block (301) to move until the plugging block (6) is inserted into the pipe hole of the water pipe (502), so as to block the pipe hole of the water pipe (502).

7. The deep drilling equipment for geological survey according to claim 2, characterized in that: The plug (104) is provided with cutting teeth (701) at one end facing the drill bit (101), and the plug (104) is provided with a dovetail tenon (702) arranged radially along the sampling tube (103) at one end away from the drill bit (101). The clamping block (201) is provided with a dovetail groove (703) radially along the sampling tube (103), and the dovetail groove (703) is slidably connected to the dovetail tenon (702).

8. The deep drilling equipment for geological survey according to claim 1, characterized in that: The plug (104) is provided with a sealing member (8), and the sealing member (8) is in close contact with the tube hole of the sampling tube (103).

9. The deep drilling equipment for geological survey according to claim 2, characterized in that: One end of the clamping block (201) facing the tube hole of the sampling tube (103) is a wedge-shaped structure.

10. The deep drilling equipment for geological survey according to claim 1, characterized in that: The inner wall of the tube hole of the sampling tube (103) is provided with a wear-resistant coating.

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