Sampling detection equipment for geotechnical engineering exploration

Abstract

The invention relates to the technical field of geotechnical engineering exploration, in particular to sampling detection equipment for geotechnical engineering exploration, which comprises a bottom frame, a rack, a guide rod, a sliding plate, a lead screw motor and the like, the top of the bottom frame is connected with the rack, the top of the bottom frame is connected with the guide rod, the guide rod is connected with the rack, the guide rod is slidably connected with the sliding plate, and the top of the rack is provided with the lead screw motor. A lead screw of the lead screw motor is rotationally connected with the top of the bottom frame and connected with the sliding plate through threads. A screw rod motor can drive a drill rod and a rock core drill bit to move downwards, the rock core drill bit is drilled into soil, the soil enters the drill rod, the soil is sampled, the drill rod can be moved to the position under a mounting shaft through an electric guide rail, the drill rod can be detached through the electric guide rail, and the detached drill rod is clamped between two elastic clamping blocks. And the drill rod is automatically mounted and dismounted, so that the working efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of rock and soil sampling, and in particular to a sampling and detection device for geotechnical engineering exploration. Background Art

[0002] Geotechnical engineering exploration is an indispensable and important link in the early stages of various engineering construction. It obtains representative soil samples and conducts indoor and field tests on them to accurately measure the physical, mechanical and chemical properties of the rock and soil.

[0003] Geotechnical exploration sampling is mainly carried out through drilling rigs. The drilling rig inserts the drill rod into the soil, and the soil enters the drill rod to sample the soil. As the drilling depth increases, the drill rod needs to be continuously installed to extend the working depth. The drill rods are connected by threads and are relatively heavy. When installing the drill rod, multiple workers are required to cooperate. When disassembling the drill rod, multiple workers are also required to cooperate, which consumes a lot of time and has low work efficiency. Summary of the invention

[0004] In order to overcome the shortcomings that the installation of the drill rod requires the cooperation of multiple workers, and the removal of the drill rod also requires the cooperation of multiple workers, which consumes a lot of time and has low work efficiency, the present invention provides a sampling and detection equipment for geotechnical engineering exploration.

[0005] The technical solution of the present invention is: a sampling and detection equipment for geotechnical engineering exploration, including a base frame, a frame, a guide rod, a slide plate, a screw motor, a servo motor, a mounting shaft, a drill rod, a core drill bit, a loading and unloading mechanism and a fixing mechanism. The top of the base frame is connected to the frame, the top of the base frame is connected to the guide rod, the guide rod is connected to the frame, the slide plate is slidably connected to the guide rod, the top of the frame is installed with a screw motor, the screw of the screw motor is rotatably connected to the top of the base frame, the screw of the screw motor and the slide plate are connected by threads, the servo motor is installed on the slide plate, the output shaft of the servo motor is connected to the mounting shaft, the lower end of the mounting shaft is connected to the drill rod by threads, the lower end of the drill rod is connected to the core drill bit by threads, the loading and unloading mechanism is used to install and disassemble the drill rod, and the fixing mechanism is used to fix the drill rod on the mounting shaft.

[0006] Furthermore, the loading and unloading mechanism includes a mounting frame, a rotating shaft, a sprocket, a chain, a connecting block, an elastic clamping block, an electric guide rail, a movable frame, a cylinder, a movable block, a rotating plate, a first sliding shaft, a clamping plate and a rotating assembly. The top of the bottom frame is connected to the mounting frame, and the left and right sides of the mounting frame are connected to the rotating shaft for symmetrical rotation front and back. The upper and lower parts of the rotating shaft are connected to the sprockets, and chains are wound around the four upper sprockets and the four lower sprockets. The chains are evenly spaced and connected with connecting blocks, and the connecting blocks are connected to two elastic clamping blocks for clamping the drill rod. The electric guide rail is installed on the mounting frame, and the top of the slider of the electric guide rail is connected to the movable frame, and the top of the movable frame is installed with a cylinder, and the movable block is connected to the telescopic rod of the cylinder. The left and right sides of the movable block are opened with a first inclined opening, and the left and right sides of the movable frame are hinged with rotating plates, and the top of the rotating plate is connected with the first sliding shaft, and the first sliding shaft is located in the first inclined opening. The rotating plate is connected with clamping plates for clamping the drill rod, and the rotating assembly is used to control the elastic clamping block to rotate.

[0007] Furthermore, the rotating assembly includes a gear, a connecting plate and a rack. The rotating shaft at the front left side is connected to the gear through a one-way clutch. The slider of the electric guide rail is connected to a connecting plate, and the connecting plate is connected to a rack. The rack will engage with the gear during the forward movement and drive the gear to rotate. The gear drives the rotating shaft at the front left side to rotate, and the rotating shaft at the front left side drives the elastic clamp to rotate.

[0008] Furthermore, the fixing mechanism includes an annular plate, a first electric push rod and a clamping block. A clamping slot is opened on the drill rod, the mounting shaft is connected to the annular plate, the first electric push rod is connected to the annular plate, the telescopic rod of the first electric push rod is connected to the clamping block, and the clamping block can be inserted into the clamping slot to fix the drill rod on the mounting shaft.

[0009] Furthermore, a guiding mechanism is included, which includes a fixing frame and a guiding ring. The top of the base frame is connected to the fixing frame, and the fixing frame is connected to the guiding ring for guiding the drill rod.

[0010] Furthermore, it also includes a stabilizing mechanism, which includes a second electric push rod, a movable plate, an insertion rod and a second sliding shaft. The second electric push rod is installed on the top of the base frame, the telescopic rod of the second electric push rod is connected to the movable plate, the movable plate is provided with a second inclined opening, the fixed frame is slidably connected with the insertion rod, the insertion rod is connected with the second sliding shaft, the second sliding shaft is located in the second inclined opening, and a slot is provided on the drill rod, the insertion rod can be inserted into the slot to fix the drill rod.

[0011] Furthermore, it also includes a first telescopic tube and a second telescopic tube. The first telescopic tube for protecting the screw of the screw motor is connected between the slide plate and the base frame, and the screw of the screw motor is located in the first telescopic tube. The second telescopic tube for protecting the screw of the screw motor is connected between the slide plate and the frame, and the screw of the screw motor is located in the second telescopic tube.

[0012] Furthermore, it also includes an annular support plate, and the mounting frame is connected to the annular support plate for supporting the drill rod.

[0013] The beneficial effects are as follows: 1. The present invention can drive the drill rod and the core drill bit to move downward through the screw motor, and the core drill bit is drilled into the soil. The soil will enter the drill rod to sample the soil. The drill rod can be moved to the bottom of the installation axis through the electric guide rail. The electric guide rail can also remove the drill rod and clamp the removed drill rod between two elastic clamps to automatically install and remove the drill rod, thereby improving work efficiency.

[0014] 2. The extension of the telescopic rod of the second electric push rod can drive the movable plate to move backward, thereby driving the two insertion rods to move toward each other, and inserting the insertion rods into the slots, so as to fix the drill rod in the soil and prevent the drill rod in the soil from sliding downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0016] Figure 2 The three-dimensional structural schematic diagram of the loading and unloading mechanism of the present invention is shown.

[0017] Figure 3 The three-dimensional structural schematic diagram of the sprocket, chain, connecting block and elastic clamp block of the present invention is shown.

[0018] Figure 4 The three-dimensional structural schematic diagram of the movable frame, cylinder, movable block, rotating plate and clamping plate of the present invention is shown.

[0019] Figure 5 A schematic diagram of the three-dimensional structure of the moving block, the first inclined opening and the first sliding shaft of the present invention is shown.

[0020] Figure 6 A three-dimensional structural schematic diagram of the gear, connecting plate and rack of the present invention is shown.

[0021] Figure 7 A three-dimensional structural schematic diagram of the fixing mechanism of the present invention is shown.

[0022] Figure 8 A three-dimensional structural schematic diagram of the card slot and the slot of the present invention is shown.

[0023] Fig. 9 A first three-dimensional structural schematic diagram of the guiding mechanism and the stabilizing mechanism of the present invention is shown.

[0024] Fig.10 A second three-dimensional structural schematic diagram of the guiding mechanism and the stabilizing mechanism of the present invention is shown.

[0025] Fig.11A schematic diagram of the three-dimensional structure of the first telescopic tube and the second telescopic tube of the present invention is shown.

[0026] Parts names and serial numbers in the figure: 1_base frame, 2_frame, 3_guide rod, 4_slide plate, 5_screw motor, 6_servo motor, 7_mounting shaft, 8_drill rod, 9_core drill bit, 10_mounting frame, 11_rotating shaft, 12_sprocket, 13_chain, 14_connecting block, 15_elastic clamping block, 17_electric guide rail, 18_moving frame, 19_cylinder, 20_moving block, 21_first inclined opening, 22_rotating plate, 2 3_first slide shaft, 24_clamp plate, 25_gear, 26_connecting plate, 27_rack, 28_slot, 29_annular plate, 30_first electric push rod, 31_block, 32_fixed frame, 33_guide ring, 34_second electric push rod, 35_movable plate, 36_second inclined opening, 37_insertion rod, 38_second slide shaft, 39_slot, 40_first telescopic tube, 41_second telescopic tube, 42_annular support plate. DETAILED DESCRIPTION

[0027] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-Figure 8 As shown, a sampling and testing equipment for geotechnical engineering exploration includes a base frame 1, a frame 2, a guide rod 3, a slide plate 4, a screw motor 5, a servo motor 6, a mounting shaft 7, a drill rod 8, a core drill bit 9, a loading and unloading mechanism and a fixing mechanism. The rear side of the top of the base frame 1 is connected to the frame 2 by bolts, the left and right sides of the top of the base frame 1 are connected with guide rods 3, the upper ends of the two guide rods 3 are connected to the frame 2, and the slide plate 4 is slidably connected to the two guide rods 3. The top of the frame 2 is installed with a screw motor 5 by bolts, the lower end of the screw of the screw motor 5 is rotatably connected to the rear side of the top of the base frame 1, the screw of the screw motor 5 and the slide plate 4 are threadedly connected, and the servo motor 6 is installed on the middle part of the front side of the slide plate 4 by bolts, the output shaft of the servo motor 6 is connected with the mounting shaft 7, the lower end of the mounting shaft 7 is threadedly connected to the drill rod 8, and the lower end of the drill rod 8 is threadedly connected to the core drill bit 9, the loading and unloading mechanism is used to install and remove the drill rod 8, and the fixing mechanism is used to fix the drill rod 8 on the mounting shaft 7.

[0029] like Figure 1-Figure 6As shown, the loading and unloading mechanism includes a mounting frame 10, a rotating shaft 11, a sprocket 12, a chain 13, a connecting block 14, an elastic clamping block 15, an electric guide rail 17, a moving frame 18, a cylinder 19, a moving block 20, a rotating plate 22, a first sliding shaft 23, a clamping plate 24 and a rotating assembly. The top front side of the bottom frame 1 is connected to the mounting frame 10 by bolts, and the left and right sides of the mounting frame 10 are symmetrically connected to the rotating shaft 11 for front and rear rotation. The upper and lower parts of the rotating shaft 11 are connected to the sprocket 12 by keys, and the chains 13 are wound around the four upper sprockets 12 and the four lower sprockets 12. The connecting blocks 14 are evenly spaced and connected to the chains 13. Two elastic clamping blocks 15 are connected, an electric guide rail 17 is installed in the middle of the mounting frame 10 by bolts, a moving frame 18 is connected to the top of the slider of the electric guide rail 17, a cylinder 19 is installed on the rear side of the top of the moving frame 18 by bolts, a moving block 20 is connected to the rear end of the telescopic rod of the cylinder 19, and a first inclined opening 21 is opened on the left and right sides of the moving block 20, and a rotating plate 22 is hinged on the left and right sides of the rear side of the moving frame 18, and a first sliding shaft 23 is connected to the top of the rotating plate 22, and the two first sliding shafts 23 are respectively located in the two first inclined openings 21, and a clamping plate 24 is connected to the rear side of the rotating plate 22. The rotating assembly is used to control the elastic clamping block 15 to rotate.

[0030] like Figure 6 As shown, the rotating assembly includes a gear 25, a connecting plate 26 and a rack 27. The middle part of the left front rotating shaft 11 is connected to the gear 25 through a one-way clutch. The left side of the slider of the electric guide rail 17 is connected to the connecting plate 26 by bolts. The left side of the connecting plate 26 is connected to the rack 27 by bolts. The rack 27 will mesh with the gear 25 during the forward movement.

[0031] like Figure 7 and Figure 8 As shown, the fixing mechanism includes an annular plate 29, a first electric push rod 30 and a clamping block 31. Clamping grooves 28 are opened on the left and right sides of the upper part of the drill rod 8. The lower part of the mounting shaft 7 is connected to the annular plate 29. The left and right sides of the bottom of the annular plate 29 are connected to the first electric push rod 30 by bolts. The telescopic rod of the first electric push rod 30 is connected with a clamping block 31, and the clamping block 31 is located in the clamping groove 28.

[0032] like Figure 2 As shown, an annular support plate 42 is also included, and the lower part of the mounting frame 10 is connected to the annular support plate 42 by bolts.

[0033] Initially, the telescopic rod of the first electric push rod 30 is in an extended state, the block 31 is inserted in the slot 28, the drill rod 8 is fixed on the installation shaft 7, the telescopic rod of the cylinder 19 is in an extended state, and the clamp 24 is in a closed state; the staff starts the servo motor 6, the output shaft of the servo motor 6 drives the installation shaft 7 to rotate, the installation shaft 7 drives the drill rod 8 to rotate, the drill rod 8 drives the core drill bit 9 to rotate, and then controls the screw motor 5 to drive the slide plate 4 to move downward, the slide plate 4 drives the core drill bit 9 to move downward, the core drill bit 9 is drilled into the soil, the soil will enter the drill rod 8, the soil is sampled, and after the entire drill rod 8 is inserted into the soil, the servo motor 6 and the screw motor 5 are turned off, and then the telescopic rod of the first electric push rod 30 is controlled to shorten, and the block 31 is removed from the slot 28. 8 is moved out, the drill rod 8 is loosened, and then the screw motor 5 is controlled to drive the slide plate 4 to move upward, and the slide plate 4 drives the installation shaft 7 to move upward. At the same time, the servo motor 6 is started, and the output shaft of the servo motor 6 drives the installation shaft 7 to rotate, and the installation shaft 7 is turned out from the drill rod 8. After the installation shaft 7 moves upward to the initial position, the servo motor 6 and the screw motor 5 are turned off, and then the drill rod 8 is clamped between the two elastic clamps 15. The two elastic clamps 15 clamp the drill rod 8. The annular support plate 42 can support the drill rod 8 to prevent the drill rod 8 from sliding down, and then the electric guide rail 17 is controlled to drive the connecting plate 26 and the rack 27 to move forward. The rack 27 will mesh with the gear 25 during the forward movement and drive the gear 25 to rotate. The gear 25 drives the rotating shaft 1 in the front left side. 1 rotates, the left front shaft 11 drives the connecting block 14 to rotate through the sprocket 12 and the chain 13, and the connecting block 14 drives the elastic clamping block 15 to rotate, thereby driving the drill rod 8 to rotate, and rotating the drill rod 8 to the rear of the clamping plate 24. At this time, the telescopic rod of the control cylinder 19 is shortened, driving the moving block 20 to move forward, and the moving block 20 drives the two first sliding shafts 23 to move away from each other through the first inclined opening 21. The first sliding shaft 23 drives the two rotating plates 22 to rotate away from each other, and the clamping plate 24 is opened. Then the electric guide rail 17 is controlled to drive the connecting plate 26 and the rack 27 to move backward, and the rack 27 drives the gear 25 to rotate in the opposite direction. Under the action of the one-way clutch, the gear 25 will not drive the left front shaft 11 Rotate, at the same time, the electric guide rail 17 can also drive the moving frame 18 to move backward, the moving frame 18 drives the clamping plate 24 to move backward, move the clamping plate 24 to the periphery of the drill rod 8, and then control the telescopic rod of the cylinder 19 to extend, drive the moving block 20 to move backward, the moving block 20 drives the two first sliding shafts 23 to move in a direction close to each other through the first inclined opening 21, the first sliding shaft 23 drives the two rotating plates 22 to rotate in a direction close to each other, close the clamping plate 24, and the clamping plate 24 can clamp the drill rod 8. At this time, the electric guide rail 17 is still running, and the clamping plate 24 continues to move backward. The clamping plate 24 will drive the drill rod 8 to move backward, and the drill rod 8 moves out of the elastic clamping block 15. When the drill rod 8 moves to the bottom of the mounting shaft 7, the electric guide rail 17 is closed.Then the screw motor 5 is controlled to drive the slide plate 4 to move downward, and the slide plate 4 drives the installation shaft 7 to move downward. At the same time, the servo motor 6 is started to drive the installation shaft 7 to rotate, and the installation shaft 7 is rotated into the drill rod 8. Then the telescopic rod of the first electric push rod 30 is controlled to extend, and the card block 31 is inserted into the card slot 28 to fix the drill rod 8. At this time, the telescopic rod of the control cylinder 19 is shortened, the splint 24 is opened, and the drill rod 8 is loosened. Then the electric guide rail 17 is controlled to drive the moving frame 18 to move forward, and the moving frame 18 drives the splint 24 to move forward, and the splint 24 is moved away from the periphery of the drill rod 8. Then the screw motor 5 and the servo motor 6 are started at the same time, so that the drill rod 8 moves downward and at the same time in Rotate, rotate the drill rod 8 into the drill rod 8 in the soil, complete the installation of the drill rod 8, the screw motor 5 and the servo motor 6 continue to run, drill the newly installed drill rod 8 into the soil, take samples, repeat the above operation, and continue to install the drill rod 8. After the soil sampling is completed, control the screw motor 5 to drive the slide plate 4 to move upward, and the slide plate 4 drives the installation shaft 7, the drill rod 8 and the core drill bit 9 to move upward to pull the drill rod 8 out of the soil. Then, according to the above operation steps, remove the drill rod 8 from the installation shaft 7. The removed drill rod 8 will be stuck between the two elastic clamps 15 for subsequent removal. In this way, the drill rod 8 can be automatically installed and removed, thereby improving work efficiency.

[0034] like Fig. 9 and Fig.10 As shown, a guide mechanism is also included, which includes a fixing frame 32 and a guide ring 33. The fixing frame 32 is connected to the middle of the top of the base frame 1 by bolts, and the middle of the fixing frame 32 is connected to the guide ring 33. The guide ring 33 can guide the drill rod 8 to make the drill rod 8 more stable when moving.

[0035] like Figure 8-Figure 10 As shown, it also includes a stabilizing mechanism, which includes a second electric push rod 34, a movable plate 35, an insertion rod 37 and a second sliding shaft 38. The second electric push rod 34 is installed in the middle of the top of the base frame 1 by bolts, and the rear end of the telescopic rod of the second electric push rod 34 is connected to the movable plate 35. The movable plate 35 has second inclined openings 36 on both sides. The fixed frame 32 has insertion rods 37 on both sides for sliding connection. The ends of the two insertion rods 37 that are away from each other are connected to the second sliding shaft 38. The two second sliding shafts 38 are respectively located in the two second inclined openings 36. Slots 39 are opened on both sides of the upper part of the drill rod 8, and the insertion rod 37 is located in the slots 39.

[0036] When installing and removing the drill rod 8, the insertion rod 37 will correspond to the slot 39. At this time, the telescopic rod of the second electric push rod 34 is controlled to extend, driving the movable plate 35 to move backward. The movable plate 35 drives the two second sliding shafts 38 to move toward each other through the second inclined opening 36. The second sliding shafts 38 drive the two insertion rods 37 to move toward each other, and the insertion rod 37 is inserted into the slot 39, so that the drill rod 8 in the soil can be fixed to prevent the drill rod 8 in the soil from sliding downward.

[0037] like Fig.11 As shown, it also includes a first telescopic tube 40 and a second telescopic tube 41. The first telescopic tube 40 is connected between the bottom of the slide 4 and the top of the base frame 1, and the screw of the screw motor 5 is located in the first telescopic tube 40. The second telescopic tube 41 is connected between the top of the slide 4 and the frame 2, and the screw of the screw motor 5 is located in the second telescopic tube 41.

[0038] Initially, the first telescopic tube 40 is in an extended state, and the second telescopic tube 41 is in a shortened state; the first telescopic tube 40 and the second telescopic tube 41 can block dust to prevent dust from floating onto the screw of the screw motor 5. When the slide plate 4 moves downward, the first telescopic tube 40 shortens and the second telescopic tube 41 lengthens. When the slide plate 4 moves upward, the first telescopic tube 40 lengthens and the second telescopic tube 41 shortens, which will not affect the movement of the slide plate 4.

[0039] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A sampling and testing device for geotechnical engineering exploration, comprising a base frame (1) and a frame (2), wherein the top of the base frame (1) is connected to the frame (2), characterized in that: The invention also comprises a guide rod (3), a slide plate (4), a screw motor (5), a servo motor (6), a mounting shaft (7), a drill rod (8), a core drill bit (9), a loading and unloading mechanism and a fixing mechanism. The top of the base frame (1) is connected with the guide rod (3), the guide rod (3) is connected with the frame (2), the slide plate (4) is slidably connected with the guide rod (3), the top of the frame (2) is installed with a screw motor (5), the screw of the screw motor (5) is rotatably connected with the top of the base frame (1), the screw of the screw motor (5) is connected with the slide plate (4) by threads, the servo motor (6) is installed on the slide plate (4), the output shaft of the servo motor (6) is connected with the mounting shaft (7), the lower end of the mounting shaft (7) is connected with the drill rod (8) by threads, the lower end of the drill rod (8) is connected with the core drill bit (9) by threads, the loading and unloading mechanism is used for installing and removing the drill rod (8), and the fixing mechanism is used for fixing the drill rod (8) on the mounting shaft (7).

2. A sampling and testing equipment for geotechnical engineering exploration according to claim 1, characterized in that: The loading and unloading mechanism comprises a mounting frame (10), a rotating shaft (11), a sprocket wheel (12), a chain (13), a connecting block (14), an elastic clamping block (15), an electric guide rail (17), a moving frame (18), a cylinder (19), a moving block (20), a rotating plate (22), a first sliding shaft (23), a clamping plate (24) and a rotating assembly. The top of the bottom frame (1) is connected with the mounting frame (10), the left and right sides of the mounting frame (10) are both connected with the rotating shaft (11) symmetrically rotating forward and backward, the upper and lower parts of the rotating shaft (11) are both connected with sprocket wheels (12), the upper four sprocket wheels (12) and the lower four sprocket wheels (12) are both wound with chains (13), the chains (13) are evenly spacedly connected with connecting blocks (14), and the connecting blocks (14) are connected with There are two elastic clamping blocks (15) for clamping a drill rod (8), an electric guide rail (17) is installed on the mounting frame (10), the top of the slider of the electric guide rail (17) is connected to a moving frame (18), a cylinder (19) is installed on the top of the moving frame (18), a moving block (20) is connected to the telescopic rod of the cylinder (19), the moving block (20) is provided with a first inclined opening (21) on both the left and right sides, a rotating plate (22) is hinged on both the left and right sides of the moving frame (18), the top of the rotating plate (22) is connected to a first sliding shaft (23), the first sliding shaft (23) is located in the first inclined opening (21), the rotating plate (22) is connected to a clamping plate (24) for clamping the drill rod (8), and the rotating assembly is used to control the elastic clamping block (15) to rotate.

3. The sampling and testing equipment for geotechnical engineering exploration according to claim 2 is characterized in that: The rotating assembly comprises a gear (25), a connecting plate (26) and a rack (27); the rotating shaft (11) at the left front is connected to the gear (25) via a one-way clutch; the slider of the electric guide rail (17) is connected to the connecting plate (26); the connecting plate (26) is connected to the rack (27); the rack (27) meshes with the gear (25) in the process of moving forward and drives the gear (25) to rotate; the gear (25) drives the rotating shaft (11) at the left front to rotate; the rotating shaft (11) at the left front drives the elastic clamp (15) to rotate.

4. The sampling and testing equipment for geotechnical engineering exploration according to claim 3 is characterized in that: The fixing mechanism comprises an annular plate (29), a first electric push rod (30) and a clamping block (31); a clamping groove (28) is provided on the drill rod (8); the mounting shaft (7) is connected with the annular plate (29); the first electric push rod (30) is connected with the annular plate (29); the telescopic rod of the first electric push rod (30) is connected with the clamping block (31); the clamping block (31) can be inserted into the clamping groove (28) to fix the drill rod (8) on the mounting shaft (7).

5. The sampling and testing equipment for geotechnical engineering exploration according to claim 4, characterized in that: It also includes a guiding mechanism, which includes a fixing frame (32) and a guiding ring (33). The top of the base frame (1) is connected to the fixing frame (32), and the fixing frame (32) is connected to the guiding ring (33) for guiding the drill rod (8).

6. The sampling and testing equipment for geotechnical engineering exploration according to claim 5, characterized in that: The invention also comprises a stabilizing mechanism, which comprises a second electric push rod (34), a movable plate (35), an insertion rod (37) and a second sliding shaft (38). The second electric push rod (34) is installed on the top of the base frame (1). The telescopic rod of the second electric push rod (34) is connected to the movable plate (35). The movable plate (35) is provided with a second inclined opening (36). The fixed frame (32) is slidably connected to the insertion rod (37). The insertion rod (37) is connected to the second sliding shaft (38). The second sliding shaft (38) is located in the second inclined opening (36). The drill rod (8) is provided with a slot (39). The insertion rod (37) can be inserted into the slot (39) to fix the drill rod (8).

7. The sampling and testing equipment for geotechnical engineering exploration according to claim 6, characterized in that: The invention also comprises a first telescopic tube (40) and a second telescopic tube (41); the first telescopic tube (40) for protecting the screw of the screw motor (5) is connected between the slide plate (4) and the base frame (1); the screw of the screw motor (5) is located in the first telescopic tube (40); the second telescopic tube (41) for protecting the screw of the screw motor (5) is connected between the slide plate (4) and the frame (2); the screw of the screw motor (5) is located in the second telescopic tube (41).

8. The sampling and testing equipment for geotechnical engineering exploration according to claim 7, characterized in that: It also includes an annular support plate (42), and the mounting frame (10) is connected to the annular support plate (42) for supporting the drill rod (8).

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