A soil sampling device for drilling exploration

Abstract

The utility model provides a soil sampling device for drilling exploration, which mainly relates to the technical field of soil drilling sampling. The soil sampling device for drilling exploration comprises a support frame, a lifting platform is movably installed in the support frame, a soil sampling device is fixedly installed in the middle of the lifting platform, a lifting drive device 1 and a lifting drive device 2 are respectively arranged in the support frame, a jet cleaning device is arranged on the lifting drive device 2, a sample storage box is arranged on one side of the support frame, and a lifting and moving wheel is movably installed at the bottom of one side of the support frame. The beneficial effect of the utility model is that the utility model can ensure the stability of the soil sampling process of the equipment through a newly designed structure, with the help of the weight of the operator and the weight of the equipment components themselves, and efficiently perform soil sampling work. The jet cleaning device can automatically clean the soil remaining after the spiral blades take the soil, ensuring that the soil sampled each time will not interfere with each other, thereby ensuring the effectiveness and accuracy of soil sampling.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of soil drilling sampling, in particular to a soil sampling device for drilling exploration. Background Art

[0002] Many factors need to be considered when selecting a drilling site, such as geomorphic conditions, rock and soil conditions, structural conditions, and other environmental geological issues. Soil sampling and analysis is an effective means of analyzing the well body address. At present, soil sampling near the well body currently includes pure manual sampling and semi-automatic sampling with the help of machines. The general process of sampling is as follows: clean up the surface soil mixed with floating dust, use manpower or machine to dig out the soil in the corresponding area, and then remove the soil that is in direct contact with the excavation tool, and select the sample soil for storage for analysis and inspection. When sampling, obtain soil that is not in direct contact with the sampling tool, so as to maximize the natural and true state of the soil at the well body.

[0003] Both sampling methods have obvious defects: manual sampling is time-consuming and labor-intensive, and the slow excavation speed results in very low sampling efficiency; automatic sampling equipment is usually portable in design and relatively light in weight. When taking soil from relatively hard layers, the equipment itself cannot be stable, and it is difficult to achieve stability even with human assistance. Adding counterweights increases the weight of the equipment and reduces its portability; machine-assisted sampling usually uses equipment with a spiral drill bit to take soil. This structure has high soil taking efficiency, but after the soil drill bit has completed sampling in one place, the drill bit is inconvenient to clean, and manual cleaning is relatively dangerous. When sampling again, it is easy to be contaminated by the residual soil from the last sampling, thus affecting the test results. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a soil sampling device for drilling exploration, which can effectively solve the above problems through a newly designed structure.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A soil sampling device for drilling exploration comprises a support frame, a lifting platform is movably installed in the support frame, a soil taking device is fixedly installed in the middle of the lifting platform, a lifting drive device 1 and a lifting drive device 2 are respectively arranged in the support frame, a jet cleaning device is arranged on the lifting drive device 2, a sample storage box is arranged on one side of the support frame, a liftable movable wheel is movably installed at the bottom of one side of the support frame, a pressure plate is arranged at one end of the support frame away from the liftable movable wheel, a moving handle is arranged on one side of the top of the support frame, operating handles are arranged on both sides of the top of the support frame, and a controller is fixedly installed on the top of the support frame.

[0007] Four lifting guide rods are fixedly arranged in the support frame, and upper sliding sleeves are embedded and fixedly installed at the four corners of the lifting platform. The upper sliding sleeves are slidably installed on the lifting guide rods, and the lower sliding sleeves are slidably installed on the lifting guide rods. Each side of the lower sliding sleeve is fixedly connected to two oblique support rods, and the upper end of the oblique support rods is fixedly connected to the bottom of the lifting platform. Each side of the lower sliding sleeve is fixedly connected to a cross bar, and four cross bars are fixedly connected to an axle sleeve. The upper part of each cross bar near one end of the axle sleeve is fixedly connected to an inner fixing rod, and the upper end of the inner fixing rod is fixedly connected to the bottom of the lifting platform, and the upper end of each cross bar near one end of the lower sliding sleeve is fixedly connected to an outer fixing rod, and the upper end of the outer fixing rod is fixedly connected to the bottom of the lifting platform.

[0008] The soil taking device includes a base, which is fixedly installed in the middle part of the lifting platform. A rotating shaft is rotatably installed in the base, and a spiral blade is fixedly connected to the outside of the rotating shaft. A worm gear reduction mechanism is fixedly installed on the base, and a soil taking drive motor is fixedly installed on one side of the worm gear reduction mechanism. The soil taking drive motor drives the rotating shaft and the spiral blade to rotate through the worm gear reduction mechanism, and the rotating shaft is rotatably connected in the shaft sleeve.

[0009] The structure of the lifting drive device includes a column, the top of the column is fixedly connected to a top seat, the bottom of the top seat is fixedly installed with a lifting drive motor, a lead screw is rotatably installed in the column, the top seat has a transmission device for the lifting drive motor and the lead screw, a lead screw nut is movably installed on the lead screw, the lead screw nut is fixedly connected to a lifting bracket, sliding gaps are opened on both sides of the column, the lifting bracket passes through the sliding gap, and the outer end of the lifting bracket is fixedly connected to the bottom of the lifting platform.

[0010] The second structure of the lifting drive device includes two columns, the top of the second column is fixedly connected to the second top seat, the bottom of the second top seat is fixedly installed with two lifting drive motors, two screws are rotatably installed in the second column, the second top seat has a transmission device for the second lifting drive motor and the second screw, two screw nuts are movably installed on the second screw, and the two screw nuts are fixedly connected to the second lifting bracket, two sliding gaps are opened on both sides of the second column, the second lifting bracket passes through the two sliding gaps, and the two lifting brackets are respectively provided with jet cleaning devices.

[0011] The jet cleaning device includes a high-pressure gas tank, an air pump and a high-pressure gas nozzle. The high-pressure gas tank is fixedly installed on the second lifting bracket, the air pump is fixedly installed on the top of the high-pressure gas tank, the high-pressure gas nozzle is installed at the bottom of the second lifting bracket, and the air outlet pipe at the bottom of the high-pressure gas tank is connected to the air inlet pipe at the top of the high-pressure gas nozzle through a pipeline.

[0012] The liftable movable wheel structure includes an adjusting frame, an adjusting rod is fixedly connected to the adjusting frame, an adjusting rotating wheel is arranged in the middle of the adjusting rod, sprockets are rotatably installed at both ends of the adjusting rod, the sprocket has an internal thread, a supporting screw is installed in the sprocket through thread cooperation, the rotating rod of the rotating wheel drives two sprockets to rotate through two chains, the bottom of the supporting screw is fixedly connected to a roller bearing, the roller bearing is slidably connected to the adjusting frame, a wheel axle is installed in the roller bearing, and movable rollers are fixedly installed at both ends of the wheel axle.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can ensure the stability of the soil sampling process of the equipment through the newly designed structure and the weight of the operator and the equipment components themselves, and can efficiently perform soil sampling work. The jet cleaning device can automatically clean the soil remaining after the spiral blades have taken the soil, ensuring that the soil sampled each time will not interfere with each other, ensuring the effectiveness and accuracy of soil sampling, and thus providing an effective reference for drilling exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model from the first perspective;

[0016] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0017] Figure 3 This is a schematic diagram of the overall structure of the utility model from a third viewing angle;

[0018] Figure 4 This is a schematic diagram of the overall structure of the utility model from a fourth viewing angle;

[0019] Figure 5 This is a schematic diagram of the overall structure of the utility model from the fifth viewing angle;

[0020] Figure 6 This is a schematic diagram of the second structure of the sliding gap of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the sliding gap of the utility model;

[0022] Figure 8 This is a schematic diagram of the second structure of the lifting bracket of the utility model;

[0023] Fig. 9 It is a structural schematic diagram of the high-pressure gas nozzle of the utility model.

[0024] Numbers shown in the accompanying drawings: 1, support frame; 2, lifting platform; 3, soil taking device; 4, lifting drive device 1; 5, lifting drive device 2; 6, jet cleaning device; 7, sample storage box; 8, lifting and moving wheels; 9, pressing plate; 10, moving handle; 11, operating handle; 12, controller; 16, lifting guide rod; 20, upper sliding sleeve; 21, lower sliding sleeve; 22, oblique support rod; 23, cross rod; 24, shaft sleeve; 25, inner fixing rod; 26, outer fixing rod; 31, base; 32, rotating shaft; 33, spiral blade; 34 , worm gear reduction mechanism; 35, soil excavation drive motor; 41, column one; 42, top seat one; 43, lifting drive motor one; 44, lifting bracket one; 45, sliding gap one; 51, column two; 52, top seat two; 53, lifting drive motor two; 54, lifting bracket two; 55, sliding gap two; 61, high-pressure gas tank; 62, air pump; 63, high-pressure gas nozzle; 81, adjustment frame; 82, adjustment rod; 83, adjustment wheel; 84, support screw; 85, roller bearing; 86, wheel axle; 87, moving roller. DETAILED DESCRIPTION

[0025] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0026] Combined with Figure 1-9A soil sampling device for drilling exploration comprises a support frame 1, a lifting platform 2 is movably installed in the support frame 1, a soil sampling device 3 is fixedly installed in the middle of the lifting platform 2, a lifting drive device 1 4 and a lifting drive device 2 5 are respectively arranged in the support frame 1, a jet cleaning device 6 is arranged on the lifting drive device 2 5, a sample storage box 7 is arranged on one side of the support frame 1, a lifting and moving wheel 8 is movably installed at the bottom of one side of the support frame 1, a pressing plate 9 is arranged at one end of the support frame 1 away from the lifting and moving wheel 8, a moving handle 10 is arranged on one side of the top of the support frame 1, operating handles 11 are respectively arranged on both sides of the top of the support frame 1, and the top of the support frame 1 is fixed. A controller 12 is installed; three boxes are arranged in the sample storage box 7, each of which has a box door with a lock body, and the sample storage box 7 can be used to classify and store the collected soil samples; the pressing plate 9 is used for the operator to stand on the pressing plate 9 when drilling into the soil to take soil, and to operate the equipment by holding the operating handle 11, so that the equipment works stably with the help of the operator's gravity assistance; the controller 12 is a semi-automatic control device based on a single-chip microprocessor, and the controller 12 has a display panel and adjustment buttons, which can perform human-computer interactive control, and the controller 12 is electrically connected to each driving component in the device, so that the operator can operate the device very conveniently.

[0027] Four lifting guide rods 16 are fixedly arranged in the support frame 1, upper sliding sleeves 20 are embedded and fixedly installed at the four corners of the lifting platform 2, the upper sliding sleeves 20 are slidably installed on the lifting guide rods 16, and lower sliding sleeves 21 are slidably installed on the lifting guide rods 16. Each lower sliding sleeve 21 is fixedly connected to two oblique support rods 22 on the side, and the upper end of the oblique support rod 22 is fixedly connected to the bottom of the lifting platform 2. Each lower sliding sleeve 21 is fixedly connected to a cross bar 23 on the side, and four cross bars 23 are fixedly connected to a shaft sleeve 24. Each cross bar 23 is close to the upper end of the shaft sleeve 24. An internal fixing rod 25 is fixedly connected, and the upper end of the internal fixing rod 25 is fixedly connected to the bottom of the lifting platform 2. The upper part of one end of each of the cross bars 23 close to the lower sliding sleeve 21 is fixedly connected to an external fixing rod 26, and the upper end of the external fixing rod 26 is fixedly connected to the bottom of the lifting platform 2. The lifting platform 2 is provided with a hollow area adapted to the lifting drive device 1 4, the lifting drive device 2 5, and the sample storage box 7. The arrangement of the multi-link can effectively improve the torsional rigidity of the lifting platform, and the cooperation of the multi-link and the shaft sleeve 24 can stably control the drilling process of the spiral blade 33.

[0028] The soil taking device 3 includes a base 31, which is fixedly installed in the middle of the lifting platform 2. A rotating shaft 32 is rotatably installed in the base 31, and a spiral blade 33 is fixedly connected to the outside of the rotating shaft 32. A worm gear reduction mechanism 34 is fixedly installed on the base 31, and a soil taking drive motor 35 is fixedly installed on one side of the worm gear reduction mechanism 34. The soil taking drive motor 35 drives the rotating shaft 32 and the spiral blade 33 to rotate through the worm gear reduction mechanism 34. The rotating shaft 32 is rotatably connected to the shaft sleeve 24; the shaft sleeve 24 is longitudinally coaxially arranged with the rotating shaft 32, and the rotating shaft 32 is fixedly connected to the shaft sleeve 24. The rotation connection of the shaft 32 in the shaft sleeve 24 can effectively improve the stability of the rotating shaft 32 and the spiral blade 33 during rotation, and prevent problems such as vibration of the equipment itself caused by eccentric rotation; the bottom of the rotating shaft 32 has a pointed end, which is convenient for drilling positioning and guiding to prevent deviation. The outer diameter of the bottom of the spiral blade 33 gradually increases from bottom to top, which is convenient for rapid drilling into the soil; the worm gear reduction mechanism 34 has the function of reducing speed and increasing torque, reducing the output speed of the drive motor and increasing the output torque. Under the cooperative drive of the lifting drive device 4, the spiral blade 33 can drill into the soil smoothly and forcefully for sampling.

[0029] The structure of the lifting drive device 4 includes a column 41, the top of the column 41 is fixedly connected to a top seat 42, a lifting drive motor 43 is fixedly installed at the bottom of the top seat 42, a lead screw 1 is rotatably installed in the column 41, a transmission device between the lifting drive motor 43 and the lead screw 1 is provided in the top seat 42, a lead screw nut 1 is movably installed on the lead screw 1, and the lead screw nut 1 is fixedly connected to a lifting bracket 44, sliding gaps 45 are opened on both sides of the column 41, and the lifting bracket 44 passes through the sliding gaps 45. The outer end of the lowering bracket 44 is fixedly connected to the bottom of the lifting platform 2; the lifting drive device 4 drives the lifting platform 2 to rise and fall through the screw nut structure; opposing soft sealing strips are provided in the sliding gap 45, and when the lifting bracket 44 passes by, the strips can elastically deform to allow the bracket to pass through, and at other times, the opposing strips are closed to prevent dust from entering; the lifting drive device 4 drives the entire lifting platform 2 to rise and fall, and the lifting bracket 44 is relatively thick. In order to further improve the ability of the transmission structure to prevent dust from entering, a protective layer bent backwards is also provided on the front side of the column 41.

[0030] The structure of the lifting drive device 2 5 includes a column 2 51, the top of the column 2 51 is fixedly connected to the top seat 2 52, the bottom of the top seat 2 52 is fixedly installed with a lifting drive motor 2 53, the column 2 51 is rotatably installed with a screw rod 2, the top seat 2 52 has a transmission device between the lifting drive motor 2 53 and the screw rod 2, the screw rod 2 is movably installed with a screw nut 2, the screw nut 2 is fixedly connected to the lifting bracket 2 54, the two sides of the column 2 51 are provided with sliding gaps 2 55, the lifting bracket 2 54 passes through the sliding gaps 2 55, and the lifting bracket 2 54 is respectively provided with a jet cleaning device 6; the lifting drive device 2 5 drives the jet cleaning device 6 to move up and down through the screw nut structure; the lifting bracket 2 54 There are two of them, one for installing the high-pressure gas tank and the other for installing the high-pressure gas nozzle. The two lifting brackets 54 are connected to the same screw nut 2 through two symmetrically opened sliding gaps 55, and are lifted and lowered together; opposing soft sealing strips are provided in the sliding gaps 55, and the strips can be elastically deformed to allow the bracket to pass through when the lifting bracket 54 passes through, and the opposing strips are closed to each other at other times to prevent dust from entering; the top seat 1 42 and the top seat 2 52 are both provided with a chain and sprocket transmission structure, and the lifting drive motor 1 43 and the screw 1, as well as the lifting drive motor 2 53 and the screw 2 are all powered by the sprocket and chain structure, the lifting drive motor 1 43 drives the screw 1 to rotate, and the lifting drive motor 2 53 drives the screw 2 to rotate.

[0031] The jet cleaning device 6 includes a high-pressure gas tank 61, an air pump 62 and a high-pressure gas nozzle 63. The high-pressure gas tank 61 is fixedly installed on the lifting bracket 54. The air pump 62 is fixedly installed on the top of the high-pressure gas tank 61. The high-pressure gas nozzle 63 is installed at the bottom of the lifting bracket 54. The bottom outlet pipe of the high-pressure gas tank 61 is connected to the top inlet pipe of the high-pressure gas nozzle 63 through a pipeline; the high-pressure gas nozzle 63 is arranged with a plurality of outlet holes at the bottom and on the side close to the rotating shaft 32, which can effectively clean the soil remaining on the surface of the rotating shaft 32 and the spiral blade 33; working process: when the lifting platform 2 descends, the jet cleaning device 6 descends together, and keeps a constant height with the spiral blade 33. At this time, no high-pressure gas will be ejected, and the spiral blade 33 will normally drill into the soil to take soil; when cleaning is needed, the device is opened through the controller 12 Self-cleaning function, first, the spiral blade 33 reciprocates under the drive of the soil-taking drive motor 35 to make most of the soil fall off, and then the jet cleaning device 6 starts to work. Under the control of the controller 12, the high-pressure gas nozzle 63 continuously sprays high-pressure gas onto the spiral blade 33 and the rotating shaft 32. At the same time, the high-pressure gas nozzle 63 slowly descends under the drive of the lifting drive device 25. When it descends to the height of the spiral blade 33, the spiral blade 33 rotates in accordance with the descent of the high-pressure gas nozzle 63 under the automatic coordinated control of the controller 12, so that the high-pressure gas nozzle 63 will not collide with the spiral blade 33. The high-pressure gas nozzle 63 passes through the gap of the spiral blade 33 in turn to clean the residual soil on the spiral blade 33 and the rotating shaft 32, thereby ensuring the cleanliness of the equipment and the accuracy of soil sampling.

[0032] The structure of the liftable movable wheel 8 includes an adjustment frame 81, to which an adjustment rod 82 is fixedly connected, an adjustment wheel 83 is arranged in the middle of the adjustment rod 82, sprockets are rotatably installed at both ends of the adjustment rod 82, the sprocket has an internal thread, a support screw 84 is installed in the sprocket through threaded cooperation, the rotating rod of the adjustment wheel 83 drives the two sprockets to rotate through two chains, the bottom of the support screw 84 is fixedly connected to a roller bearing 85, the roller bearing 85 is slidably connected in the adjustment frame 81, a wheel axle 86 is installed in the roller bearing 85, and movable rollers 87 are fixedly installed at both ends of the wheel axle 86.

[0033] When the device is in use, the device is pulled and moved to the vicinity of a suitable working position by moving the handle 10. First, the surface soil of the sampling position is properly cleaned, and then the device is placed above the sampling position. The adjusting wheel 83 is turned to make the support screw 84 rise upward, thereby driving the wheel shaft 86 and the moving roller 87 to move upward, so that the moving roller 87 leaves the ground, and the support frame 1 is stably placed on the ground. The operator stands on the pressing plate 9 and starts the soil drilling operation of the equipment through the controller 12, and then the operating handle 11 is held by hand to assist the equipment to work stably with the help of the weight of the human body and the weight of the wheel shaft 86 and the moving roller 87; after the spiral blade 33 drills to a suitable depth, the controller 12 controls the spiral blade 33 to rotate slowly in the opposite direction to bring out the soil, and the lifting platform 2 stops when it rises to the highest position. The operator takes out the manual sampling tool and the sample bag from the sample storage box 7 to sample the soil at different depths, and then mixes them into the sample bag for storage; when sampling, the outer layer of soil that may be in direct contact with the spiral blade must first be scraped off, and then the soil is sampled Also try to avoid the soil that may contact the shaft or blade part, and avoid the interference of the sampling tool on the soil sample to the greatest extent; after the sampling is completed, the sample is stored, and the equipment soil pre-cleaning work is started. The spiral blade 33 rotates back and forth at a small angle under the drive of the driving structure, so that the soil on the spiral blade 33 falls back into the soil pit where the soil is taken out; after the soil falls, the equipment soil cleaning work is started, and the jet cleaning device 6 starts to work. Under the coordinated work of the soil taking device 3 and the lifting drive device 5, the high-pressure gas nozzle 63 starts to spray high-pressure gas and continues to slowly descend, and the spiral blade 33 rotates slowly accordingly. The high-pressure gas can clean the soil remaining on the surface of the rotating shaft 32 and the spiral blade 33 until the high-pressure gas nozzle 63 descends to the bottom of the spiral blade 33 and stops descending. The high-pressure gas nozzle 63 stops spraying, and the spiral blade 33 and the high-pressure gas nozzle 63 reverse movement to return to normal state, completing the soil cleaning work; after the sampling is completed, the adjusting wheel 83 is rotated in the reverse direction to make the movable roller 87 descend to an appropriate height to facilitate the movement of the device.

[0034] The side of the support frame 1 of the device away from the sample storage box 7 is the soil sampling area; in the structural design of the device, heavy equipment is arranged on the side close to the moving roller 87, which is convenient for the operator to maintain the balance of the device when moving the device through the moving handle 10.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A soil sampling device for drilling exploration, comprising a support frame (1), characterized in that: A lifting platform (2) is movably installed in the support frame (1), a soil taking device (3) is fixedly installed in the middle of the lifting platform (2), a lifting drive device 1 (4) and a lifting drive device 2 (5) are respectively arranged in the support frame (1), an air jet cleaning device (6) is arranged on the lifting drive device 2 (5), a sample storage box (7) is arranged on one side of the support frame (1), a liftable movable wheel (8) is movably installed at the bottom of one side of the support frame (1), a pressure plate (9) is arranged at one end of the support frame (1) away from the liftable movable wheel (8), a moving handle (10) is arranged on one side of the top of the support frame (1), operating handles (11) are respectively arranged on both sides of the top of the support frame (1), and a controller (12) is fixedly installed on the top of the support frame (1).

2. A soil sampling device for drilling exploration according to claim 1, characterized in that: Four lifting guide rods (16) are fixedly arranged in the support frame (1); upper sliding sleeves (20) are embedded and fixedly installed at the four corners of the lifting platform (2); the upper sliding sleeves (20) are slidably installed on the lifting guide rods (16); a lower sliding sleeve (21) is slidably installed on the lifting guide rods (16); each lower sliding sleeve (21) is fixedly connected to two oblique support rods (22) on the side; the upper ends of the oblique support rods (22) are fixedly connected to the bottom of the lifting platform (2); each lower sliding sleeve (21) is fixedly connected to a cross bar (23) on the side; four cross bars (23) are fixedly connected to an axle sleeve (24); the upper part of one end of each cross bar (23) close to the axle sleeve (24) is fixedly connected to an inner fixing rod (25); the upper end of the inner fixing rod (25) is fixedly connected to the bottom of the lifting platform (2); the upper part of one end of each cross bar (23) close to the lower sliding sleeve (21) is fixedly connected to an outer fixing rod (26); the upper end of the outer fixing rod (26) is fixedly connected to the bottom of the lifting platform (2).

3. The soil sampling equipment for drilling exploration according to claim 1, characterized in that: The soil excavation device (3) comprises a base (31), the base (31) being fixedly mounted on the middle portion of the lifting platform (2), a rotating shaft (32) being rotatably mounted in the base (31), the rotating shaft (32) being fixedly connected to the outside of a spiral blade (33), a worm gear reduction mechanism (34) being fixedly mounted on the base (31), a soil excavation drive motor (35) being fixedly mounted on one side of the worm gear reduction mechanism (34), the soil excavation drive motor (35) driving the rotating shaft (32) and the spiral blade (33) to rotate via the worm gear reduction mechanism (34), and the rotating shaft (32) being rotatably connected to the shaft sleeve (24).

4. The soil sampling equipment for drilling exploration according to claim 1, characterized in that: The structure of the lifting drive device (4) comprises a column (41), the top of the column (41) is fixedly connected to a top seat (42), the bottom of the top seat (42) is fixedly installed with a lifting drive motor (43), a lead screw is rotatably installed in the column (41), the top seat (42) has a transmission device for the lifting drive motor (43) and the lead screw, a lead screw nut is movably installed on the lead screw, the lead screw nut is fixedly connected to a lifting bracket (44), sliding gaps (45) are opened on both sides of the column (41), the lifting bracket (44) passes through the sliding gaps (45), and the outer end of the lifting bracket (44) is fixedly connected to the bottom of the lifting platform (2).

5. The soil sampling equipment for drilling exploration according to claim 1, characterized in that: The structure of the second lifting drive device (5) comprises a second column (51), the top of the second column (51) is fixedly connected to the second top seat (52), the bottom of the second top seat (52) is fixedly installed with a second lifting drive motor (53), the second column (51) is rotatably installed with a second lead screw, the second top seat (52) has a transmission device for the second lifting drive motor (53) and the second lead screw, the second lead screw nut is movably installed on the second lead screw, the second lead screw nut is fixedly connected to the second lifting bracket (54), the second column (51) is provided with a sliding gap (55) on both sides, the second lifting bracket (54) passes through the sliding gap (55), and the second lifting bracket (54) is respectively provided with an air jet cleaning device (6).

6. The soil sampling device for drilling exploration according to claim 5, characterized in that: The jet cleaning device (6) comprises a high-pressure gas tank (61), an air pump (62) and a high-pressure gas nozzle (63); the high-pressure gas tank (61) is fixedly mounted on the second lifting bracket (54); the air pump (62) is fixedly mounted on the top of the high-pressure gas tank (61); the high-pressure gas nozzle (63) is mounted on the bottom of the second lifting bracket (54); and the gas outlet pipe at the bottom of the high-pressure gas tank (61) is connected to the gas inlet pipe at the top of the high-pressure gas nozzle (63) via a pipeline.

7. The soil sampling equipment for drilling exploration according to claim 1, characterized in that: The liftable movable wheel (8) structure comprises an adjustment frame (81), an adjustment rod (82) is fixedly connected to the adjustment frame (81), an adjustment rotating wheel (83) is arranged in the middle of the adjustment rod (82), sprocket wheels are rotatably mounted at both ends of the adjustment rod (82), the sprocket wheel has an internal thread, a support screw (84) is mounted in the sprocket wheel through thread matching, the rotating rod of the rotating wheel (83) drives two sprocket wheels to rotate through two chains, the bottom of the support screw (84) is fixedly connected to a roller bearing (85), the roller bearing (85) is slidably connected to the adjustment frame (81), a wheel shaft (86) is mounted in the roller bearing (85), and movable rollers (87) are fixedly mounted at both ends of the wheel shaft (86).

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