Geological exploration surface core sampling device and method thereof

Abstract

The application relates to the technical field of geological exploration, and discloses a geological exploration surface drill core sampling device and a method thereof, which comprises a bottom plate, a vertical plate fixedly installed at the top end of the bottom plate, a lead screw rotationally connected to the front end of the vertical plate, a motor one fixedly installed at the top end of the vertical plate, a guide rod fixedly installed at the front end of the vertical plate, and a meshing plate meshed with the surface of the lead screw. The positioning sleeves are fixed by using the rack when the positioning sleeves are sleeved with the bottom end of the lengthened rod, the sampling drill bit is disassembled after the top end of the sampling drill bit is inserted into the bottom plate, the meshing plate is driven by the motor one to ascend to contact with the lifting rod, the push rod one can be pulled to move upward through the lifting rod, the moving frame is pushed backward, the rack and the positioning sleeve are driven to move forward, the lengthened rod is directly moved above the sampling drill bit, the connected pin is installed, and the operator does not need to move the lengthened rod, so that the labor burden is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, and more particularly to a surface core sampling device and method for geological exploration. Background Art

[0002] Before construction of shallow buried layer of tunnel surface, roadbed and borrow pit, geological survey is required to provide accurate and sufficient geological data for construction, so that construction personnel can adjust the construction process, thereby reducing and preventing the occurrence of engineering accidents.

[0003] Most sampling devices in the prior art use a driven sampling drill bit to insert into the ground for sampling. However, when sampling in deeper areas, an extension rod needs to be connected to the sampling drill bit to lengthen the sampling drill bit. When connecting the extension rod, the operator needs to install the extension rod in place, which increases the labor burden. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a surface core sampling device for geological exploration and a method thereof, which has the advantage of reducing the labor burden.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a surface core sampling device for geological exploration, comprising a base plate, a vertical plate fixedly mounted on the top of the base plate, a lead screw rotatably connected to the front end of the vertical plate, a motor 1 fixedly mounted on the top of the vertical plate, a guide rod fixedly mounted on the front end of the vertical plate, and an engaging plate meshing with the surface of the lead screw;

[0006] The top of the meshing plate is fixedly mounted with a second motor, the output end of the second motor is fixedly mounted with a driving block, the bottom end of the driving block is detachably connected to a sampling drill bit, the top of the bottom plate is fixedly mounted with a positioning bar, the top end of the positioning bar is placed with an extension rod;

[0007] The bottom end of the vertical plate is movably connected with a positioning sleeve, and the right end of the positioning sleeve is fixedly installed with a rack, the top of the bottom plate is rotatably connected to a gear, the top of the bottom plate is fixedly installed with a hydraulic pipe, the bottom end of the hydraulic pipe is movably connected to the moving frame, the rear end of the moving frame is fixedly installed with a moving bar, the left end of the moving bar is rotatably connected to a driving gear block, a spring sheet is fixedly installed between the driving gear block and the moving bar, the rear end of the hydraulic pipe is movably connected with a push rod 1, the surface of the push rod 1 is sleeved with a return spring, and the top of the push rod 1 is fixedly installed with a lifting rod.

[0008] As a preferred technical solution of the present invention, the engagement plate is movably connected to the surface of the guide rod, the motor is connected to the lead screw, and the drive block and the sampling drill bit are connected by pins.

[0009] As a preferred technical scheme of the present application, the lengthening rod is inserted into the positioning sleeve, and the bottom end of the lengthening rod is shaped in accordance with the bottom end of the driving block.

[0010] As a preferred technical scheme of the present application, the rack is engaged with the gear, the other end of the rack is engaged with the driving tooth block, and the length of the rack is greater than the length of the positioning sleeve.

[0011] As a preferred technical scheme of the present application, the top end of the lifting rod is shaped as "L", and the top end of the lifting rod is above and in contact with the engaging plate.

[0012] As a preferred technical scheme of the present application, the front end of the vertical plate is fixedly installed with a connecting water box, the rear end of the connecting water box is fixedly installed with a hollow rod, and the middle part of the hollow rod is fixedly installed with a spray head.

[0013] As a preferred technical scheme of the present application, two square grooves are formed in the engaging plate, and the projections of the hollow rod and the spray head are located in the square grooves.

[0014] As a preferred technical scheme of the present application, the top end of the bottom plate is fixedly installed with a water tank, the inner cavity of the water tank is movably connected with a pressing plate, the top end of the pressing plate is fixedly installed with a connecting rod, the front end of the water tank is fixedly installed with a connecting water pipe, and the front end of the water tank is fixedly installed with a water adding pipe and a one-way air inlet pipe.

[0015] As a preferred technical scheme of the present application, the bottom end of the connecting rod is fixedly connected with the lifting rod, the connecting water pipe is in communication with the connecting water box, and the one-way air inlet pipe is below the pressing plate.

[0016] A use method of a geological exploration surface drilling core sampling device, comprising the following steps:

[0017] The device is moved to a specified position, and then the sampling drill bit is fixed below the driving block by using a pin.

[0018] Start motor one and motor two, motor one drives the screw rod to rotate, and then drives the meshing plate to move downward through the meshing of the screw rod and the meshing plate, motor two directly drives the driving block to rotate, and then drives the sampling drill bit to rotate, finally realizes that the sampling drill bit rotates while moving downward, the sampling drill bit is inserted into the ground while moving downward, and then the ground soil is sampled, when the sampling depth exceeds the length of the sampling drill bit, the connecting pin between the driving block and the sampling drill bit is removed after the meshing plate transports the sampling drill bit to the bottom end, the screw rod reversely rotates to drive the driving block to move upward, when the meshing plate contacts the lifting rod, the lifting rod can be driven to move upward, then the push rod one moves upward, and the connecting rod moves upward, the upward movement of the connecting rod can drive the extrusion plate to move upward in the water tank, then the outside air enters the water tank through the one-way air inlet pipe, at this time, the motor two stops working;

[0019] The upward movement of the push rod one can drive the hydraulic oil in the hydraulic pipe to move, push the moving frame and the moving strip backward, drive the rack to move forward through the meshing of the driving block and the gear, then pull the extension rod to move forward to the upper side of the sampling drill bit through the positioning sleeve, at this time, only the upper and lower ends of the extension rod are connected with the driving block and the sampling drill bit through the pins, after the connection is completed, the meshing plate moves downward again, the motor two is started again to drive the extension rod and the sampling drill bit to rotate, so that the sampling drill bit continues to insert into the soil to sample; At this time, the lifting rod is not in contact with the meshing plate, and is reset downward under the elastic action of the reset spring, then drives the moving frame to move forward and drives the connecting rod to move downward, when the connecting rod moves downward, the water in the water tank can be squeezed out to the connecting water box through the connecting water pipe through the extrusion plate, and finally sprayed on the surface of the extension rod through the hollow rod, and then dropped on the soil surface through the extension rod, so as to soften the soil and reduce the resistance of the extension rod moving downward.

[0020] When the moving frame moves forward, the inclined surface of the driving block directly contacts the gear teeth of the gear, extrudes the inclined surface of the spring piece, and is staggered with the gear, so that the gear cannot be driven to rotate;

[0021] After the sampling is completed, the extension rod and the sampling drill bit can be pulled out through the reverse rotation of the screw rod driven by the motor one, at this time, only the sample in the sampling drill bit is taken out, so that the soil condition can be analyzed and detected, the soil condition of the construction surface is provided, and accurate geological data is provided.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows:

[0023] 1、The present application fixes multiple positioning sleeves by using a rack when the bottom end of the lengthening rod is sleeved with a positioning sleeve, after the top end of the sampling drill is inserted below the bottom plate, the sampling drill is disassembled, the motor drives the engagement plate to rise to contact the lifting rod, the lifting rod pulls the push rod up, the moving frame is pushed, the rack and the positioning sleeve move forward, the lengthening rod moves directly above the sampling drill, the connecting pin is installed, the labor burden is reduced.

[0024] 2、The connecting rod is connected above the lifting rod, when the lifting rod moves up, the connecting rod moves up, the outside air is sucked into the water tank, when the lifting rod moves down, the water in the water tank is squeezed into the connecting water box, the water is sprayed on the surface of the lengthening rod or the sampling drill through the nozzle, the soil on the ground is softened, the resistance of the sampling drill and the lengthening rod inserted into the soil is reduced, the sampling and detection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 It is a schematic diagram of the structure of the water tank;

[0027] Figure 3 It is a schematic diagram of the structure of the water tank; Figure 2 It is an enlarged schematic diagram of A in the present application;

[0028] Figure 4 It is a schematic diagram of the structure of the rack connection;

[0029] Figure 5 It is an enlarged schematic diagram of B in the present application; Figure 4 It is an enlarged schematic diagram of B in the present application;

[0030] Figure 6 It is an exploded schematic diagram of the structure of the sampling drill;

[0031] Figure 7 It is a schematic diagram of the structure of the hollow rod connection.

[0032] In the figure: 1, bottom plate; 2, vertical plate; 3, lead screw; 4, motor one; 5, guide rod; 6, engagement plate; 7, motor two; 8, drive block; 9, sampling drill; 10, positioning sleeve; 11, rack; 12, positioning strip; 13, lengthening rod; 14, gear; 15, moving strip; 16, drive tooth block; 17, spring piece; 18, hydraulic pipe; 19, moving frame; 20, push rod one; 21, return spring; 22, lifting rod; 23, connecting water box; 24, hollow rod; 25, nozzle; 26, water tank; 27, connecting rod; 28, extrusion plate; 29, connecting water pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of 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 the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] As shown in Figures 1 to 7 The present application provides a geological exploration surface core sampling device, which comprises a bottom plate 1, a vertical plate 2 fixedly installed at the top end of the bottom plate 1, a lead screw 3 rotationally connected to the front end of the vertical plate 2, a motor one 4 fixedly installed at the top end of the vertical plate 2, a guide rod 5 fixedly installed at the front end of the vertical plate 2, and an engagement plate 6 engaged with the surface of the lead screw 3.

[0035] The top end of the engagement plate 6 is fixedly installed with a motor two 7, the output end of the motor two 7 is fixedly installed with a driving block 8, the bottom end of the driving block 8 is detachably connected with a sampling drill bit 9, the top end of the bottom plate 1 is fixedly installed with a positioning strip 12, and the top end of the positioning strip 12 is placed with an extension rod 13.

[0036] The bottom end of the vertical plate 2 is movably connected with a positioning sleeve 10, the right end of the positioning sleeve 10 is fixedly installed with a rack 11, the top end of the bottom plate 1 is rotationally connected with a gear 14, the top end of the bottom plate 1 is fixedly installed with a hydraulic pipe 18, the bottom end of the hydraulic pipe 18 is movably connected with a moving frame 19, the rear end of the moving frame 19 is fixedly installed with a moving strip 15, the left end of the moving strip 15 is rotationally connected with a driving tooth block 16, the driving tooth block 16 and the moving strip 15 are fixedly installed with a spring sheet 17, the rear end of the hydraulic pipe 18 is movably connected with a push rod one 20, the surface of the push rod one 20 is sleeved with a return spring 21, and the top end of the push rod one 20 is fixedly installed with a lifting rod 22.

[0037] By sleeving the positioning sleeve 10 at the bottom end of the extension rod 13 and using the rack 11 to fix a plurality of positioning sleeves 10, when the top end of the sampling drill bit 9 is inserted into the bottom plate 1, the sampling drill bit 9 is detached, the motor one 4 drives the engagement plate 6 to rise to contact the lifting rod 22, the lifting rod 22 can pull the push rod one 20 to move upward, thereby pushing the moving frame 19 rearward, thereby driving the rack 11 and the positioning sleeve 10 to move forward, so that the extension rod 13 is directly moved above the sampling drill bit 9, at this time, only the connecting pin needs to be installed, without the need for the operator to move the extension rod 13, thereby reducing the labor burden.

[0038] The engagement plate 6 is movably connected to the surface of the guide rod 5, the motor one 4 is drivingly connected with the lead screw 3, and the driving block 8 and the sampling drill bit 9 are inserted with a pin;

[0039] Motor 1 4 drives the lead screw 3 to rotate, and then drives the meshing plate 6 to move downward through the engagement of the lead screw 3 and the meshing plate 6. Motor 2 7 directly drives the driving block 8 to rotate, and then drives the sampling drill bit 9 to rotate, and finally realizes that the sampling drill bit 9 rotates and moves downward. The sampling drill bit 9 is inserted into the ground when moving downward, and then samples the ground soil.

[0040] The extension rod 13 is inserted into the positioning sleeve 10, and the shape of the bottom end of the extension rod 13 is consistent with the shape of the bottom end of the driving block 8;

[0041] Using the same shape of connection form can make connection more convenient. After the extension rod 13 moves downward, the driving block 8 can also pass through the positioning sleeve 10, and then completely transport the extension rod 13 to the bottom of the positioning sleeve 10, avoiding interference between the forward movement of the positioning sleeve 10 and the downward movement of the extension rod 13. The setting of the positioning strip 12 can limit the movement of the extension rod 13, ensuring that the axis of the pin connection hole is in a horizontal state, which is convenient for subsequent connection.

[0042] The rack 11 is meshed with the gear 14, and the other end of the rack 11 is meshed with the driving gear block 16. The length of the rack 11 is greater than the length of the positioning sleeve 10.

[0043] The spring piece 17 connected to the driving gear block 16 and the moving bar 15 is an elastic metal piece in an arc shape. This is the existing technology. Figure 5 As shown, the spring sheet 17 has been stretched forward to the frontmost position and cannot be stretched forward any further. Therefore, when the movable bar 15 moves backward, the gear 14 can be pushed to rotate. The spring sheet 17 has the elasticity to bend backward and contract. When the movable bar 15 moves forward, the driving tooth block 16 can bend toward the spring sheet 17 and be staggered with the gear 14.

[0044] The top end of the lifting rod 22 is L-shaped, and the top end of the lifting rod 22 is located above the engaging plate 6 and in contact with the engaging plate 6;

[0045] The "L"-shaped setting of the top of the lifting rod 22 can make the top of the lifting rod 22 located on the travel path of the engaging plate 6, ensuring that the lifting rod 22 can be stably lifted when the engaging plate 6 moves upward.

[0046] Among them, the front end of the vertical plate 2 is fixedly installed with a water box 23, the rear end of the water box 23 is fixedly installed with a hollow rod 24, and the middle part of the hollow rod 24 is fixedly installed with a nozzle 25;

[0047] The water entering the connecting water box 23 is sprayed onto the surface of the extension rod 13 or the sampling drill bit 9 through the nozzle 25, and the water drops on the ground to soften the soil on the ground to a certain extent, reducing the resistance after the sampling drill bit 9 and the extension rod 13 are inserted into the soil, which can more effectively improve the efficiency of sampling and detection.

[0048] Wherein, the engagement plate 6 is provided with two square grooves, and the projections of the hollow rod 24 and the spray head 25 are located in the square grooves;

[0049] By setting two square grooves, the up and down movement of the hollow rod 24 and the spray head 25 and the engagement plate 6 is staggered, avoiding the interference of the hollow rod 24 and the spray head 25 with the downward movement of the engagement plate 6. Similarly, the bottom end of the front side of the vertical plate 2 is provided with an "L" shaped bracket, which is connected with the connecting water box 23 to provide space for the forward movement of the positioning sleeve 10 and the rack 11, avoiding interference.

[0050] Wherein, the top end of the bottom plate 1 is fixedly installed with a water tank 26, the inner cavity of the water tank 26 is movably connected with a pressing plate 28, the top end of the pressing plate 28 is fixedly installed with a connecting rod 27, the front end of the water tank 26 is fixedly installed with a connecting water pipe 29, and the front end of the water tank 26 is fixedly installed with a water filling pipe and a one-way air inlet pipe;

[0051] By connecting the connecting rod 27 above the lifting rod 22, when the lifting rod 22 moves up, the connecting rod 27 can be driven to move up together, and the external air can be sucked into the water tank 26. After the lifting rod 22 moves down, the water in the water tank 26 can be squeezed into the connecting water box 23, realizing the delivery of the water in the water tank 26 during the downward movement of the engagement plate 6.

[0052] Wherein, the bottom end of the connecting rod 27 is fixedly connected with the lifting rod 22, the connecting water pipe 29 is communicated with the connecting water box 23, and the one-way air inlet pipe is located below the pressing plate 28;

[0053] By setting the one-way air inlet pipe, because the density of air is smaller than that of water, the water tank 26 can realize the condition that the lower layer is water and the upper layer is air. Even if the water in the water tank 26 is reduced, the water can be squeezed out in the form of air compression, and the starting position of the pressing plate 28 will not change.

[0054] A use method of a geological exploration surface drill core sampling device, comprising the following steps:

[0055] The device is moved to a specified position, and then the sampling drill bit 9 is fixed below the driving block 8 by using a pin;

[0056] The motor one 4 and the motor two 7 are started, the motor one 4 drives the screw rod 3 to rotate, and then drives the meshing plate 6 to move downward through the meshing of the screw rod 3 and the meshing plate 6, the motor two 7 directly drives the driving block 8 to rotate, and then drives the sampling drill bit 9 to rotate, finally realizes that the sampling drill bit 9 rotates and moves downward, the sampling drill bit 9 is inserted into the ground when moving downward, and then the ground soil is sampled, when the sampling depth exceeds the length of the sampling drill bit 9, the meshing plate 6 transports the sampling drill bit 9 to the bottom end, then the connecting pin between the driving block 8 and the sampling drill bit 9 is removed, the screw rod 3 reversely rotates and drives the driving block 8 to move upward, when the meshing plate 6 contacts the lifting rod 22, the lifting rod 22 can be driven to move upward, then the push rod one 20 is driven to move upward, and the connecting rod 27 moves upward, the upward movement of the connecting rod 27 can drive the extrusion plate 28 to move upward in the water tank 26, then the air outside enters the water tank 26 through the one-way air inlet pipe, at this time, the motor two 7 is stopped;

[0057] The upward movement of the push rod one 20 can drive the hydraulic oil in the hydraulic pipe 18 to move, and then the moving frame 19 and the moving strip 15 are pushed backward, the driving rack 11 moves forward through the meshing of the driving block 16 and the gear 14, then the lengthening rod 13 is pulled forward to the upper side of the sampling drill bit 9 through the positioning sleeve 10, at this time, the upper and lower ends of the lengthening rod 13 are connected with the driving block 8 and the sampling drill bit 9 through the pins, after the connection is completed, the meshing plate 6 moves downward again, the motor two 7 is started again to drive the lengthening rod 13 and the sampling drill bit 9 to rotate, so that the sampling drill bit 9 continues to insert into the soil to sample; at this time, the lifting rod 22 is not in contact with the meshing plate 6, and is reset downward under the elastic action of the reset spring 21, then the moving frame 19 moves forward, and the connecting rod 27 moves downward, when the connecting rod 27 moves downward, the water in the water tank 26 can be squeezed out into the connecting water box 23 through the connecting water pipe 29 through the extrusion plate 28, and finally sprayed on the surface of the lengthening rod 13 through the hollow rod 24, and then dropped on the soil surface through the lengthening rod 13, so as to soften the soil and reduce the resistance of the lengthening rod 13 to move downward;

[0058] When the moving frame 19 moves forward, the inclined surface of the driving block 16 directly contacts the teeth of the gear 14, and the spring sheet 17 is extruded and inclined, and the gear 14 is disengaged, so that the gear 14 cannot be driven to rotate;

[0059] After the sampling is completed, the lengthening rod 13 and the sampling drill bit 9 can be pulled out through the reverse rotation of the screw rod 3 driven by the motor one 4, at this time, the samples in the sampling drill bit 9 are taken out, and then the soil condition can be analyzed and detected to provide the soil condition of the construction surface and provide accurate geological data.

[0060] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0061] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A surface core sampling device for geological exploration, comprising a base plate (1), characterized in that: A vertical plate (2) is fixedly mounted on the top of the bottom plate (1), a screw (3) is rotatably connected to the front end of the vertical plate (2), a motor (4) is fixedly mounted on the top of the vertical plate (2), a guide rod (5) is fixedly mounted on the front end of the vertical plate (2), and an engaging plate (6) is engaged with the surface of the screw (3); A second motor (7) is fixedly mounted on the top of the meshing plate (6), a driving block (8) is fixedly mounted on the output end of the second motor (7), a sampling drill bit (9) is detachably connected to the bottom end of the driving block (8), a positioning bar (12) is fixedly mounted on the top end of the bottom plate (1), and an extension rod (13) is placed on the top end of the positioning bar (12); The bottom end of the vertical plate (2) is movably connected to a positioning sleeve (10), the right end of the positioning sleeve (10) is fixedly installed with a rack (11), the top end of the bottom plate (1) is rotatably connected to a gear (14), the top end of the bottom plate (1) is fixedly installed with a hydraulic pipe (18), the bottom end of the hydraulic pipe (18) is movably connected to a moving frame (19), the rear end of the moving frame (19) is fixedly installed with a moving bar (15), the left end of the moving bar (15) is rotatably connected to a driving tooth block (16), a spring sheet (17) is fixedly installed between the driving tooth block (16) and the moving bar (15), the rear end of the hydraulic pipe (18) is movably connected to a push rod (20), the surface of the push rod (20) is sleeved with a return spring (21), and the top end of the push rod (20) is fixedly installed with an upper lifting rod (22); The top end of the lifting rod (22) is L-shaped, and the top end of the lifting rod (22) is located above the engaging plate (6) and contacts the engaging plate (6); A water connection box (23) is fixedly mounted on the front end of the vertical plate (2), a hollow rod (24) is fixedly mounted on the rear end of the water connection box (23), and a nozzle (25) is fixedly mounted in the middle of the hollow rod (24); A water tank (26) is fixedly mounted on the top of the bottom plate (1), an inner cavity of the water tank (26) is movably connected to an extrusion plate (28), a connecting rod (27) is fixedly mounted on the top of the extrusion plate (28), a connecting water pipe (29) is fixedly mounted on the front end of the water tank (26), and a water supply pipe and a one-way air inlet pipe are fixedly mounted on the front end of the water tank (26); The bottom end of the connecting rod (27) is fixedly connected to the lifting rod (22), the connecting water pipe (29) is connected to the connecting water box (23), and the one-way air inlet pipe is located below the extrusion plate (28).

2. A surface core sampling device for geological exploration according to claim 1, characterized in that: The meshing plate (6) is movably connected to the surface of the guide rod (5), the motor 1 (4) drives the connecting screw (3), and the driving block (8) and the sampling drill bit (9) are connected by pins.

3. The surface core sampling device for geological exploration according to claim 1, characterized in that: The extension rod (13) is inserted into the positioning sleeve (10), and the shape of the bottom end of the extension rod (13) is consistent with the shape of the bottom end of the driving block (8).

4. The surface core sampling device for geological exploration according to claim 1, characterized in that: The rack (11) is meshed with the gear (14), and the other end of the rack (11) is meshed with the driving gear block (16). The length of the rack (11) is greater than the length of the positioning sleeve (10).

5. The surface core sampling device for geological exploration according to claim 1, characterized in that: Two square grooves are provided on the engaging plate (6), and the projections of the hollow rod (24) and the nozzle (25) are both located in the square grooves.

6. A method for using a surface core sampling device for geological exploration according to any one of claims 1 to 5, characterized in that: The steps include: Move the device to the desired position, and then fix the sampling drill bit (9) under the driving block (8) using a pin; Start the motor 1 (4) and the motor 2 (7). The motor 1 (4) drives the lead screw (3) to rotate, and then drives the meshing plate (6) to move downward through the meshing of the lead screw (3) and the meshing plate (6). The motor 2 (7) directly drives the driving block (8) to rotate, and then drives the sampling drill bit (9) to rotate, and finally realizes that the sampling drill bit (9) rotates and moves downward. The sampling drill bit (9) is inserted into the ground when it moves downward, and then samples the ground soil. When the sampling depth exceeds the length of the sampling drill bit (9), the meshing plate (6) transports the sampling drill bit (9) to the bottom end. , remove the connecting pin between the driving block (8) and the sampling drill bit (9), and rotate the lead screw (3) in the opposite direction to drive the driving block (8) to move upward. When the engaging plate (6) contacts the lifting rod (22), the lifting rod (22) can be driven to move upward, thereby pulling the push rod (20) to move upward and driving the connecting rod (27) to move upward. The upward movement of the connecting rod (27) can drive the extrusion plate (28) to move upward in the water tank (26), thereby allowing the outside air to enter the water tank (26) through the one-way air inlet pipe. At this time, the motor 2 (7) stops; The upward movement of the push rod 1 (20) can push the hydraulic oil in the hydraulic pipe (18) to move, push the moving frame (19) and the moving bar (15) backward, and drive the rack (11) to move forward by engaging the driving gear block (16) with the gear (14), and then pull the extension rod (13) forward to the top of the sampling drill bit (9) through the positioning sleeve (10). At this time, it is only necessary to connect the upper and lower ends of the extension rod (13) with the driving block (8) and the sampling drill bit (9) using pins respectively. After the connection is completed, the meshing plate (6) moves down again, and the motor 2 (7) is turned on again to drive the extension rod (13) and the sampling drill bit (9) to rotate. The sampling drill bit (9) is rotated so that the sampling drill bit (9) continues to be inserted downward into the soil for sampling; at this time, the lifting rod (22) is no longer in contact with the meshing plate (6), and is reset downward under the elastic action of the reset spring (21), thereby driving the movable frame (19) to move forward and driving the connecting rod (27) to move downward. When the connecting rod (27) moves downward, the water in the water tank (26) can be squeezed out into the connecting water box (23) through the squeezing plate (28) through the connecting water pipe (29), and finally sprayed on the surface of the extension rod (13) through the hollow rod (24), and dripped onto the soil surface through the extension rod (13), thereby softening the soil and reducing the resistance of the extension rod (13) to move downward; When the moving frame (19) moves forward, the inclined surface of the driving tooth block (16) directly contacts the teeth of the gear (14), presses and tilts toward the spring sheet (17), and staggers with the gear (14), making it impossible to drive the gear (14) to rotate; After the sampling is completed, the motor 1 (4) drives the lead screw (3) to reverse, and the extension rod (13) and the sampling drill bit (9) can be pulled out. At this time, it is only necessary to take out the sample in the sampling drill bit (9) to analyze and detect the soil condition, provide the soil condition of the construction surface, and provide accurate geological data.

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