Geological content sampling equipment for geological surveying and mapping

Abstract

The invention relates to the technical field of geological survey sampling equipment, in particular to geological content sampling equipment for geological surveying and mapping, which comprises a mounting seat, a drilling pipe is mounted at the lower end of the mounting seat, a drill bit is rotatably connected to the lower end of the drilling pipe, and a plurality of mounting grooves and a plurality of contraction grooves are equidistantly formed in the drilling pipe. The multiple sampling boxes are rotatably connected in the mounting groove, the multiple rotating cylinders and the driven cylinders are rotatably connected in the drilling pipe, the limiting rods are slidably connected in the rotating cylinders and the driven cylinders, first springs are mounted between the limiting rods and the rotating cylinders and between the limiting rods and the driven cylinders, limiting grooves are formed in the upper ends and the lower ends of the sampling boxes, and one ends of the limiting rods are located in the limiting grooves; according to the soil sampling device, through the action of the sampling assembly, soil dug in the sampling boxes can be isolated, the soil is prevented from making contact with soil at other positions in the land, and the accuracy of subsequent sampling detection of soil at different depths is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of geological exploration sampling equipment technology, and more specifically to a geological content sampling device for geological mapping. Background Technology

[0002] Geological mapping is a scientific method used to study the Earth's surface and underground structures, material composition, and geological processes. In the process of geological mapping, sampling and analysis of geological samples is a crucial step, because only by analyzing geological samples can we understand the underground geological conditions and provide a basis for mineral resource exploration, geological disaster prevention, and other purposes.

[0003] The shortcomings of existing technologies: Existing geological sampling equipment is basically based on drilling. During the drilling process, the rotating head causes the soil to be squeezed against the inner wall and bottom of the borehole tube, which can easily bring soil from the upper layers to the lower layers, causing soil from different depths to mix. Furthermore, after the soil is extracted, soil will adhere to the inner wall of the borehole tube. If the soil on the inner wall of the borehole tube is not cleaned, this residual soil may mix into the new soil sample during the next sampling, resulting in low sampling accuracy and efficiency, and affecting subsequent soil composition analysis. To address these issues, we propose a geological content sampling device for geological mapping. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a geological content sampling device for geological mapping to solve the problems existing in the background art.

[0005] This invention provides the following technical solution: a geological content sampling device for geological mapping, comprising a mounting base, a borehole pipe mounted at the lower end of the mounting base, a drill bit rotatably connected to the lower end of the borehole pipe, a sampling assembly disposed inside the borehole pipe, the sampling assembly comprising a mounting groove, a sampling box, a rotating cylinder, a driven cylinder, a limiting rod, and a shrinkage groove, multiple mounting grooves and multiple shrinkage grooves being equidistantly formed inside the borehole pipe, multiple sampling boxes being rotatably connected inside the mounting grooves, multiple rotating cylinders and driven cylinders being rotatably connected inside the borehole pipe, the limiting rods being slidably connected inside the rotating cylinders and driven cylinders, and a first spring being installed between the limiting rods and the rotating cylinders and driven cylinders, the sampling boxes having limiting grooves at both the upper and lower ends, one end of the limiting rod being located inside the limiting groove, a pair of top rods being slidably connected inside each sampling box, and an isolation plate being slidably connected inside each shrinkage groove, with the sampling boxes located inside the isolation plate.

[0006] Preferably, a mounting shell is mounted on the upper end of the mounting base, a servo motor is mounted on the upper end of the mounting shell, a rotating rod is rotatably connected to the mounting base and the drilling tube, a drive shaft mounted on the output end of the servo motor is fixedly connected to the rotating rod, a first gear is mounted on the circumferential surface of the rotating rod, and a gear ring mounted on the upper end of the drill bit meshes with the first gear.

[0007] Preferably, a driven rod is rotatably connected to the mounting base and the borehole tube. An auger blade is mounted on the circumferential surface of the driven rod. The auger blade is slidably connected to the inner wall of the borehole tube. A second gear is mounted on the circumferential surface of the rotating rod. A third gear mounted on the circumferential surface of the driven rod meshes with the second gear. A pair of discharge ports are provided inside the borehole tube.

[0008] Preferably, a pair of connecting rods are slidably connected between the mounting base and the drilled pipe, and the plurality of isolation plates are fixedly connected to the connecting rods via connecting blocks.

[0009] Preferably, an electric push rod is installed inside the mounting base and the drilled tube, and a connecting frame is installed at the output end of the electric push rod, the connecting frame being fixedly connected to a pair of connecting rods.

[0010] Preferably, a rotating shaft is rotatably connected to the mounting base and the drilled tube, and a plurality of first sprockets are equidistantly mounted on the circumference of the rotating shaft. The second sprockets mounted on the circumference of the rotating cylinder are connected to the first sprockets by a chain.

[0011] Preferably, a rotating gear is rotatably connected to the circumferential surface of the rotating shaft, a pair of guide shafts are mounted on the upper end of the rotating gear, a drive gear is slidably connected to the circumferential surface of the guide shaft, a second spring is installed between the rotating gear and the drive gear, a plug-in block is installed on the upper end of the rotating shaft, a plug-in groove is opened on the upper end face of the drive gear, the plug-in block is adapted to the plug-in groove, and a pressure rod is installed on the lower end of the connecting frame, the pressure rod is used to press down the drive gear to the lower position.

[0012] Preferably, a positioning seat is slidably connected inside the drill pipe, and a positioning hole is opened on the upper end face of the positioning seat, and a positioning pin is provided in the positioning hole.

[0013] The technical effects and advantages of this invention are as follows: 1. This invention controls the rotation of a drill bit to create a sampling hole in the ground. A drill pipe is simultaneously inserted into the sampling hole. Then, a partition plate is moved downwards to open the mounting slot. Next, the rotating cylinder is controlled to rotate, causing the sampling box to rotate. A portion of the sampling box moves out of the mounting slot. During rotation, this portion excavates soil from the inner wall of the hole, collecting some of the soil within the sampling box. When the sampling box completes one rotation and returns to its original position, the partition plate can be controlled to rise and reset, sealing both the mounting slot and the opening of the sampling box. The drill pipe can then be controlled to rise and reset. During this process, the partition plate seals the opening of the sampling box, isolating the excavated soil and preventing contact with soil from other parts of the ground, thus ensuring the accuracy of subsequent soil sampling and testing at different depths.

[0014] 2. In this invention, when the drill bit rotates to drill a hole in the ground, the second gear installed on the circumference of the rotating rod simultaneously drives the third gear to rotate. The third gear then drives the driven rod and the auger blades to rotate. When the drill pipe descends, the rotating auger blades can transport the soil at the center of the drill pipe upwards. Subsequently, the soil is discharged from the drill pipe through the discharge port, reducing the resistance of the drill pipe descending to the ground, thereby improving the speed of drilling in the ground and the efficiency of soil sampling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure in the frontal cross-section of the present invention; Figure 3 In this invention Figure 2 A schematic diagram of the structure of part A; Figure 4 In this invention Figure 2 A structural diagram of section B; Figure 5 In this invention Figure 2 A structural diagram of section C; Figure 6 This is a schematic diagram of the drill bit structure in this invention; Figure 7 This is a cross-sectional structural schematic diagram of the mounting base in this invention; Figure 8 This is a schematic diagram of the structure of the pressure rod pressing down on the drive gear in this invention; Figure 9 This is a top view of the drive gear in this invention. Figure 10 This is a schematic diagram of a partial cross-section of the borehole tube in this invention; Figure 11 In this invention Figure 10A structural diagram of section D; Figure 12 This is a schematic diagram of the installation location of the sampling component in this invention; Figure 13 In this invention Figure 12 A structural diagram of section E in the middle; Figure 14 This is a schematic diagram of the disassembled structure of the limiting rod and sampling box in this invention; Figure 15 This is a cross-sectional structural diagram of the rotating cylinder and sampling box in this invention; Figure 16 This is a schematic diagram of the disassembled sampling box in this invention; Figure 17 In this invention Figure 16 Schematic diagram of the structure of section F; Figure 18 This is a schematic diagram of the sampling box rotating in this invention; Figure 19 In this invention Figure 18 A schematic diagram of the structure of part G in the middle.

[0016] The attached figures are labeled as follows: 1. Mounting base; 101. Drilling tube; 102. Drill bit; 2. Sampling assembly; 201. Mounting groove; 202. Shrinkage groove; 203. Sampling box; 204. Rotating cylinder; 205. Driven cylinder; 206. Limiting rod; 207. First spring; 208. Limiting groove; 209. Top rod; 2010. Isolation plate; 3. Mounting shell; 301. Servo motor; 302. Rotating rod; 303. Drive shaft; 304. First gear; 305. Gear ring; 4. Driven rod; 401. 1. Screwdriver blades; 402. Second gear; 403. Third gear; 404. Discharge port; 5. Connecting rod; 501. Connecting block; 502. Electric push rod; 503. Connecting frame; 6. Rotating shaft; 601. First sprocket; 602. Second sprocket; 603. Chain; 7. Rotating gear; 701. Guide shaft; 702. Drive gear; 703. Second spring; 704. Insertion block; 705. Insertion groove; 706. Pressure rod; 8. Positioning seat; 801. Positioning hole; 802. Positioning pin. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The geological content sampling device for geological mapping involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1-15 As shown, in one embodiment, a geological content sampling device for geological mapping is proposed, including a mounting base 1. A borehole pipe 101 is mounted on the lower end of the mounting base 1, and a drill bit 102 is rotatably connected to the lower end of the borehole pipe 101. A sampling component 2 is disposed inside the borehole pipe 101. The sampling component 2 includes a mounting groove 201, a sampling box 203, a rotating cylinder 204, a driven cylinder 205, a limiting rod 206, and a shrinkage groove 202. Multiple mounting grooves 201 and multiple shrinkage grooves 202 are equidistantly formed inside the borehole pipe 101, and multiple sampling boxes 203 are rotatably connected to the mounting grooves 201. Multiple rotating cylinders 204 and driven cylinders 205 are rotatably connected inside the drilling tube 101. Limiting rods 206 are slidably connected inside the rotating cylinders 204 and driven cylinders 205. A first spring 207 is installed between the limiting rods 206 and the rotating cylinders 204 and driven cylinders 205. Limiting grooves 208 are opened at both the upper and lower ends of the sampling box 203. One end of the limiting rod 206 is located in the limiting groove 208. A pair of top rods 209 are slidably connected inside the sampling box 203. A partition plate 2010 is slidably connected inside the shrinkage groove 202. The sampling box 203 is located inside the partition plate 2010.

[0019] In practical application, the drill bit 102 mounted on the lower end of the drilling tube 101 faces the ground. The direction of the drilling tube 101 is controlled by the handheld mounting base 1, while downward pressure is applied. When the drill bit 102 rotates, it drills into the ground, inserting the drilling tube 101 into the ground. Once the drilling tube 101 is fully inserted, a sampling hole is created in the ground. Then, the isolation plate 2010 is moved downwards, opening the mounting groove 201. Next, the rotating cylinder 204 is rotated. Through the action of the limiting rod 206, the rotating cylinder 204 drives the sampling box 203 to rotate, and the driven cylinder 205 located below the sampling box 203 rotates simultaneously. As the sampling box 203 rotates, samples are taken... Part of the sample box 203 will be moved out of the mounting slot 201. During the rotation of the removed part of the sample box 203, it will dig up the soil on the inner wall of the hole in the ground, so that part of the soil on the inner wall of the hole is collected in the sample box 203. When the sample box 203 rotates one full turn and resets, the isolation plate 2010 can be controlled to rise and reset, sealing the mounting slot 201 and the opening of the sample box 203 at the same time. Then the drilling pipe 101 can be controlled to rise and reset. When the drilling pipe 101 rises and resets, since the isolation plate 2010 seals the opening of the sample box 203, the soil dug out in the sample box 203 can be isolated to avoid contact with the soil in other parts of the land, thus ensuring the accuracy of subsequent soil sampling and testing at different depths. After the borehole pipe 101 is removed from the ground, the isolation plate 2010 is retracted into the shrinkage groove 202. Then, by pushing the top rod 209 to both sides and applying a pulling force to the outside, the top rod 209 pushes the limiting rod 206 out of the limiting groove 208. The sampling box 203 can then be removed from the installation groove 201 and stored separately. When sampling is needed in other locations later, a clean sampling box 203 can be reinstalled in the installation groove 201. This makes soil sample extraction more convenient and avoids the use of the same sampling box 203 for multiple samplings, preventing the mixing of new and old soil and further improving the accuracy of soil sampling and testing.

[0020] like Figure 4 , 5 As shown in Figures 6 and 8, in one embodiment, a mounting shell 3 is mounted on the upper end of the mounting base 1, a servo motor 301 is mounted on the upper end of the mounting shell 3, a rotating rod 302 is rotatably connected to the mounting base 1 and the drilling tube 101, a drive shaft 303 mounted on the output end of the servo motor 301 is fixedly connected to the rotating rod 302, a first gear 304 is mounted on the circumferential surface of the rotating rod 302, and a gear ring 305 mounted on the upper end of the drill bit 102 meshes with the first gear 304.

[0021] In practical application, the servo motor 301 is controlled to operate, which in turn drives the drive shaft 303 to rotate. The drive shaft 303 drives the rotating rod 302 to rotate, which in turn drives the first gear 304 to rotate. The first gear 304 drives the gear ring 305 to rotate, which in turn drives the drill bit 102 to rotate. When the drill bit 102 is facing the ground and downward pressure is applied, the effect of drilling a hole in the ground can be achieved.

[0022] like Figure 1 , 4 As shown in Figures 5, 7, and 8, in one embodiment, a driven rod 4 is rotatably connected to the mounting base 1 and the drilling tube 101. An auger blade 401 is mounted on the circumferential surface of the driven rod 4. The auger blade 401 is slidably connected to the inner wall of the drilling tube 101. A second gear 402 is mounted on the circumferential surface of the rotating rod 302. A third gear 403 mounted on the circumferential surface of the driven rod 4 meshes with the second gear 402. A pair of discharge ports 404 are provided inside the drilling tube 101.

[0023] In practical application, when the drill bit 102 rotates to drill a hole in the ground, the second gear 402 mounted on the circumferential surface of the rotating rod 302 simultaneously drives the third gear 403 to rotate. The third gear 403 then drives the driven rod 4 and the auger blade 401 to rotate. When the drill pipe 101 descends, the rotating auger blade 401 can transport the soil at the center of the drill pipe 101 upwards. Subsequently, the soil is discharged from the drill pipe 101 through the discharge port 404, reducing the resistance of the drill pipe 101 descending to the ground, thereby improving the speed of drilling in the ground and the efficiency of soil sampling.

[0024] like Figure 11 , 12 As shown in Figure 13, in one embodiment, a pair of connecting rods 5 are slidably connected inside the mounting base 1 and the drilling tube 101, and multiple isolation plates 2010 are fixedly connected to the connecting rods 5 via connecting blocks 501.

[0025] In practical application, this invention involves controlling a pair of connecting rods 5 to move upwards simultaneously. Through the action of the connecting block 501, the connecting rods 5 can simultaneously drive the isolation plate 2010 to move upwards, sealing the mounting groove 201 and preventing the soil in the sampling box 203 from mixing with soil from other locations. When the pair of connecting rods 5 move downwards simultaneously, the isolation plate 2010 can be controlled to move downwards, opening the mounting groove 201. At this time, the sampling box 203 can be controlled to rotate, accurately digging out the soil at the current depth, achieving the effect of accurate soil sampling at different depths.

[0026] like Figure 5 and 7 As shown, in one embodiment, an electric push rod 502 is installed inside the mounting base 1 and the drilling tube 101, and a connecting frame 503 is installed at the output end of the electric push rod 502. The connecting frame 503 is fixedly connected to a pair of connecting rods 5.

[0027] In practical application, the electric push rod 502 is controlled to operate. The output end of the electric push rod 502 can drive the connecting frame 503 to rise and fall. The connecting frame 503 can drive a pair of connecting rods 5 to rise and fall, thereby achieving the effect of controlling the rise and fall of the isolation plate 2010 and realizing the effect of opening and sealing the mounting slot 201.

[0028] like Figure 5 , 12 As shown in 13, 16, 17, 18 and 19, in one embodiment, a rotating shaft 6 is rotatably connected to the mounting base 1 and the drilling tube 101. A plurality of first sprockets 601 are equidistantly mounted on the circumferential surface of the rotating shaft 6. A second sprocket 602 mounted on the circumferential surface of the rotating cylinder 204 is connected to the first sprockets 601 by a chain 603.

[0029] In practical application, when the isolation plate 2010 descends and the mounting slot 201 opens, the rotating shaft 6 can be controlled to rotate. The rotating shaft 6 will then drive the rotating cylinder 204 to rotate through the action of the first sprocket 601, the chain 603, and the second sprocket 602. The rotating cylinder 204 will drive the limiting rod 206 to rotate, and the limiting rod 206 will drive the sampling box 203 to rotate. This achieves the goal of controlling the sampling box 203 to rotate one revolution and digging soil at the corresponding depth, thus achieving the sampling effect of soil at different locations.

[0030] like Figure 5 , 7 As shown in Figures 8 and 9, in one embodiment, a rotating gear 7 is rotatably connected to the circumferential surface of the rotating shaft 6. A pair of guide shafts 701 are mounted on the upper end of the rotating gear 7. A drive gear 702 is slidably connected to the circumferential surface of the guide shafts 701. A second spring 703 is installed between the rotating gear 7 and the drive gear 702. A plug-in block 704 is mounted on the upper end of the rotating shaft 6. A plug-in groove 705 is opened on the upper end surface of the drive gear 702. The plug-in block 704 is adapted to the plug-in groove 705. A pressure rod 706 is mounted on the lower end of the connecting frame 503. The pressure rod 706 is used to press down the drive gear 702 to a lower position.

[0031] In practical application, when the output end of the electric push rod 502 is extended upwards, the isolation plate 2010 is in a state of blocking the mounting slot 201. After the drilling pipe 101 descends into the ground, the electric push rod 502 can be controlled to operate, driving the connecting frame 503 to descend. The isolation plate 2010 descends synchronously. After the connecting frame 503 and the isolation plate 2010 have finished descending, the mounting slot 201 will open, and the pressure rod 706 installed at the lower end of the connecting frame 503 will press down on the drive gear 702, causing the drive gear 702 to descend. The insertion block 704 will then insert into the insertion slot 705 opened on the upper end face of the drive gear 702. At this time, the servo motor 301 is controlled to operate, and the servo motor 301 drives the drive shaft 303 to rotate slowly. The rotating rod 302 rotates, which in turn rotates the second gear 402, which in turn rotates the third gear 403. The third gear 403 then rotates the rotating gear 7. The rotating gear 7, through the action of the guide shaft 701, drives the drive gear 702 to rotate. When the drive gear 702 rotates, it slides against the pressure rod 706. Since the insertion block 704 is inserted into the insertion slot 705 at this time, the rotation of the drive gear 702 will drive the insertion block 704 to rotate. The insertion block 704 will then drive the rotating shaft 6 to rotate. Subsequently, through the action of the first sprocket 601, the chain 603, and the second sprocket 602, the rotating cylinder 204 can be rotated, thereby achieving the effect of controlling the sampling box 203 to rotate one revolution to complete the digging and sampling at the designated position. Once sampling is complete, the output end of the electric push rod 502 can be controlled to push the connecting frame 503 to rise and reset, thereby driving the pressure rod 706 to rise. When the pressure rod 706 disengages from the drive gear 702, the second spring 703 pushes the drive gear 702 to move upward, causing the drive gear 702 to separate from the plug-in block 704. Subsequently, when the third gear 403 rotates and drives the rotating gear to rotate, the rotating gear 7 will rotate on the circumferential surface of the rotating shaft 6, preventing the rotating shaft 6 from rotating. When the servo motor 301 stops rotating, the encoder makes the plug-in slot 705 on the drive gear 702 face the plug-in block 704 below. When the drive gear 702 descends, the plug-in block 704 can be directly inserted into the plug-in slot 705.

[0032] like Figure 1 and 2 As shown, in one embodiment, a positioning seat 8 is slidably connected inside the drill pipe 101, and a positioning hole 801 is opened on the upper end surface of the positioning seat 8, and a positioning pin 802 is provided in the positioning hole 801.

[0033] In practical application, the positioning seat 8 is placed on the ground, and then the positioning pin 802 is inserted into the ground through the positioning hole 801 to fix the position of the positioning seat 8. Then, when the drill bit 102 rotates to drill, it can play a guiding and positioning role, so that the drill pipe 101 is inserted vertically into the ground.

[0034] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A geological content sampling device for geological mapping, comprising a mounting seat (1), characterized in that: The lower end of the mounting seat (1) is provided with a drilling pipe (101), the lower end of the drilling pipe (101) is rotationally connected with a drill bit (102), a sampling assembly (2) is arranged in the drilling pipe (101), the sampling assembly (2) comprises a mounting groove (201), a sampling box (203), a rotating cylinder (204), a driven cylinder (205), a limiting rod (206) and a contraction groove (202), a plurality of mounting grooves (201) and a plurality of contraction grooves (202) are equidistantly arranged in the drilling pipe (101), a plurality of sampling boxes (203) are rotationally connected in the mounting grooves (201), a plurality of rotating cylinders (204) and a plurality of driven cylinders (205) are rotationally connected in the drilling pipe (101), the limiting rods (206) are slidably connected in the rotating cylinders (204) and the driven cylinders (205), the first springs (207) are arranged between the limiting rods (206) and the rotating cylinders (204) and the driven cylinders (205), limiting grooves (208) are arranged at the upper and lower ends of the sampling box (203), one end of the limiting rod (206) is located in the limiting groove (208), a pair of jacks (209) are slidably connected in the sampling box (203), and isolation plates (2010) are slidably connected in the contraction grooves (202). The sampling boxes (203) are located on the inner side of the isolation plates (2010).

2. The geological content sampling device for geological mapping of claim 1, wherein: The upper end of the mounting seat (1) is provided with a mounting shell (3), the upper end of the mounting shell (3) is provided with a servo motor (301), the mounting seat (1) and the drilling pipe (101) are rotationally connected with a rotating rod (302), the output shaft (303) of the servo motor (301) is fixedly connected with the rotating rod (302), the first gear (304) is arranged on the circumferential surface of the rotating rod (302), and the tooth ring (305) arranged on the upper end of the drill bit (102) is engaged with the first gear (304).

3. A geological content sampling device for geological mapping as claimed in claim 2, wherein: The mounting seat (1) and the drilling pipe (101) are rotationally connected with a driven rod (4), the auger blade (401) is arranged on the circumferential surface of the driven rod (4), the auger blade (401) is slidably connected with the inner wall of the drilling pipe (101), the second gear (402) is arranged on the circumferential surface of the rotating rod (302), the third gear (403) arranged on the circumferential surface of the driven rod (4) is engaged with the second gear (402), and a pair of discharge ports (404) are arranged in the drilling pipe (101).

4. The geological content sampling device for geological mapping of claim 1, wherein: A pair of connecting rods (5) are slidably connected in the mounting seat (1) and the drilling pipe (101), and a plurality of isolation plates (2010) are fixedly connected with the connecting rods (5) through connecting blocks (501).

5. A geological content sampling device for geological mapping as claimed in claim 4, wherein: The mounting seat (1) and the drilling pipe (101) are provided with an electric push rod (502), the output end of the electric push rod (502) is provided with a connecting frame (503), and the connecting frame (503) is fixedly connected with the pair of connecting rods (5).

6. A geological content sampling device for geological mapping as claimed in claim 5, wherein: The mounting seat (1) and the drilling pipe (101) are rotationally connected with a rotating shaft (6), a plurality of first chain wheels (601) are equidistantly installed on the circumferential surface of the rotating shaft (6), and a second chain wheel (602) installed on the circumferential surface of the rotating cylinder (204) is connected with the first chain wheels (601) through a chain (603).

7. A geological content sampling device for geological mapping as claimed in claim 6, wherein: A rotating gear (7) is rotationally connected on the circumferential surface of the rotating shaft (6), a pair of guide shafts (701) are installed on the upper end of the rotating gear (7), a driving gear (702) is slidably connected on the circumferential surface of the guide shaft (701), a second spring (703) is installed between the rotating gear (7) and the driving gear (702), an insertion block (704) is installed on the upper end of the rotating shaft (6), an insertion slot (705) is formed on the upper end surface of the driving gear (702), the insertion block (704) is matched with the insertion slot (705), a pressing rod (706) is installed on the lower end of the connecting frame (503), and the pressing rod (706) is used for pressing down the driving gear (702) to a lower position.

8. The geological content sampling device for geological mapping of claim 1, wherein: A positioning seat (8) is slidably connected in the drilling pipe (101), a positioning hole (801) is formed on the upper end surface of the positioning seat (8), and a positioning pin (802) is arranged in the positioning hole (801).

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