A rock-soil sampling device for geological survey

Abstract

The application relates to a rock-soil sampling device for geological exploration, which comprises a pipe, a hand-held handle, a push rod and a bulldozing head, the pipe vertically extends and is closed at the upper end and open at the lower end, a vertically extending connecting rod is fixed to the upper end of the pipe, the hand-held handle is fixed to the connecting rod, the push rod is vertically arranged and is connected to the inside of the connecting rod and the pipe, the bulldozing head is located in the inside of the pipe and is fixed to the lower end of the push rod, the connecting rod is sleeved and slidably connected with a sliding ring, the sliding ring is installed with a foot pedal rod, and the sliding ring is used for abutting against the upper end of the pipe or is detachably connected to the push rod. The application can improve the convenience of soil sampling and improve the soil sampling efficiency.

Description

Technical Field

[0001] This application relates to the field of soil sampling technology, and in particular to a soil and rock sampling device for geological surveying. Background Technology

[0002] Geological exploration is a research activity that involves investigating and exploring geology using various means and methods to determine suitable bearing strata, and based on the bearing capacity of the bearing strata, to determine the foundation type and calculate foundation parameters. When investigating the geological conditions of a certain area, such as rocks, strata, structures, minerals, hydrology, and landforms, it is usually necessary to use samplers to collect soil samples and then analyze the soil conditions of the area.

[0003] A sampler typically includes a cannula, a handle, a push rod, and a bulldozer head. The cannula extends vertically, closed at the top and open at the bottom. A vertically extending connecting rod is fixed to the upper end of the cannula. The handle is fixed to the connecting rod. The push rod is vertically inserted and slidably connected to both the connecting rod and the cannula. The bulldozer head is located inside the cannula and fixed to the lower end of the push rod. In use, the handle is held, the cannula is inserted into the soil, and then pulled out, causing some soil to collect inside the cannula. Finally, the push rod is pushed, causing the bulldozer head to push the soil out of the cannula, thus completing the soil sampling process.

[0004] However, when using the sampler, especially during the process of inserting the cannula into the soil, the user often needs to press the handle with both hands at the same time, which makes the insertion of the cannula into the soil relatively strenuous and slow, resulting in relatively low soil sampling efficiency. Summary of the Invention

[0005] To improve the convenience and efficiency of soil sampling, this application provides a soil and rock sampling device for geological exploration.

[0006] The technical solution for a geological survey soil and rock sampling device provided in this application is as follows: A soil and rock sampling device for geological exploration includes a tube, a hand handle, a push rod, and a bulldozer head. The tube extends vertically and is closed at the upper end and open at the lower end. A vertically extending connecting rod is fixed to the upper end of the tube. The hand handle is fixed to the connecting rod. The push rod is vertically inserted and slidably connected to both the connecting rod and the tube. The bulldozer head is located inside the tube and fixed to the lower end of the push rod. A sliding ring is sleeved on and slidably connected to the connecting rod. A foot pedal is installed on the sliding ring. The sliding ring is used to abut against the upper end of the tube or is detachably connected to the push rod.

[0007] By adopting the above technical solution, during the process of inserting the cannula into the soil by holding the handle, the sliding ring is slid to the position of abutting the upper end of the cannula. Then, pressure is applied by stepping on the foot pedal, thereby reducing the force exerted by the hand and making the insertion process of the cannula into the soil more convenient, while increasing the insertion speed and improving the soil sampling efficiency. After the cannula is pulled out of the soil, when it is necessary to push the soil out of the cannula, the sliding ring is slid towards the handle, and then the sliding ring is connected to the push rod. Then, the foot pedal is stepped on, and the force exerted by the leg is used to drive the push rod to slide, thereby pushing the soil out of the cannula. This further achieves the effect of saving hand effort, and the soil pushing process is more efficient, improving the convenience of soil sampling.

[0008] Optionally, the connecting rod has a sliding hole that penetrates the side wall, the sliding hole extends along the length of the connecting rod, the sliding ring passes through and is slidably connected to the connecting pin, and the push rod has a connecting hole for engaging with the connecting pin.

[0009] By adopting the above technical solution, when it is necessary to push out the soil in the insertion tube, the sliding ring is slid toward the hand handle, and then the sliding connecting pin is inserted into the connecting hole, thereby connecting the sliding ring and the foot pedal to the push rod. This allows the sliding of the push rod to be controlled by the legs, further achieving the purpose of saving effort for the hands.

[0010] Optionally, the sliding ring is provided with a push spring, which is used to drive the connecting pin to slide toward the connecting hole.

[0011] By adopting the above technical solution, when the connecting pin moves to the position corresponding to the connecting hole, the connecting pin can be automatically inserted into the connecting hole by the action of the push spring, thereby automatically achieving docking. This makes the whole process of connecting the connecting pin to the push rod more convenient and automated.

[0012] Optionally, the upper end of the insertion tube is fixed with a vertically extending push post, the upper end of the push post pointing towards the connecting pin, and the upper end of the push post is configured with a wedge-shaped structure. The connecting pin has a clearance hole for the push post to pass through.

[0013] By adopting the above technical solution, during the process of stepping on the foot pedal to drive the push rod to push out the soil in the insertion tube, as the sliding ring gradually comes into contact with the upper end of the insertion tube, the push rod will insert into the connecting hole on the connecting pin. This causes the wedge-shaped part on the push rod to drive the connecting pin away from the connecting hole, causing the connecting pin to disengage from the connecting hole, thereby releasing the connection between the connecting pin and the push rod. After the soil is removed from the insertion tube, the foot pedal is kept in place, allowing the insertion tube to be inserted into the soil for subsequent soil sampling by applying pressure with the legs. This changes the purpose of foot pressure, making soil sampling more efficient. Furthermore, as the soil enters the insertion tube, the push rod can slide upwards without being restricted by the connecting pin, allowing the subsequent soil sampling process to proceed smoothly. This also makes the operation of continuous soil sampling more convenient.

[0014] Optionally, a magnet is fixed to the bottom wall of the connecting hole, and a metal part for being attracted by the magnet is provided at one end of the connecting pin facing the connecting hole.

[0015] By adopting the above technical solution, the magnet can attract the metal part, thereby improving the interlocking effect and stability when the connecting pin is inserted into the connecting hole.

[0016] Optionally, the push rod sidewall is provided with a limiting groove extending along its own length direction, and the connecting rod is engaged in the limiting groove.

[0017] By adopting the above technical solution, the set limiting groove has a limiting effect on the rotation of the push rod, thereby reducing the possibility of misalignment of the connecting hole, which would make it difficult for the connecting pin to fit with the connecting hole, and ensuring the use effect.

[0018] Optionally, the end of the connecting pin facing the push rod is formed with multiple snap-fit ​​connectors, and the push rod is provided with multiple connecting holes, each of which corresponds to and engages with a multiple snap-fit ​​connector.

[0019] By adopting the above technical solution, when the connecting pin slides toward the push rod, multiple snap-fit ​​connectors can be inserted into multiple connecting holes respectively, thereby improving the stability of the connecting pin when it is inserted into the push rod.

[0020] Optionally, the foot pedal is hinged to a sliding ring, the sliding ring having a limiting portion formed thereunder, the limiting portion being located below the foot pedal.

[0021] By adopting the above technical solution, after use, the foot pedal can be rotated upwards to fold, thereby reducing the possibility of damage to personnel or other objects caused by the foot pedal protruding outwards, and improving the convenience of placing the sampling equipment; when in use, simply unfold the foot pedal, at which time the foot pedal can abut against the limiting part, so that the foot pedal is stably kept in the unfolded state, making it easy to step on.

[0022] Optionally, both the connecting rod and the push rod are provided with locking holes, and the sliding ring is slidably connected to a locking pin for inserting into the locking hole. The locking pin is provided with a push spring, which is used to drive the locking pin to slide toward the locking hole.

[0023] By adopting the above technical solution, when soil sampling is completed and the sampling equipment needs to be stored, the push rod can be stored inside the connecting rod and the insertion tube, so that the locking hole on the connecting rod is aligned with the locking hole on the push rod. Then, the sliding ring is slid to make the locking pin correspond to the locking hole. Then, under the action of the push spring, the locking pin can pass through the two locking holes at the same time, thereby locking the sliding ring and the push rod to the connecting rod at the same time. Thus, during the storage process, the possibility of the push rod and the sliding ring sliding is reduced, and the stability during storage is improved.

[0024] Optionally, a drive cam is fixed to the hinge of the foot pedal, and a traction rope is provided inside the sliding ring. The two ends of the traction rope are respectively fixed to a locking pin and a protrusion of the drive cam.

[0025] By adopting the above technical solution, when the sampling equipment needs to be stored, the push rod is first retracted into the connecting rod and the insertion tube, and the locking hole on the push rod is aligned with the locking hole on the connecting rod. Then, the sliding ring is placed at the position abutting the upper end of the insertion tube, so that the locking hole on the connecting rod can align with the locking pin. Finally, the foot pedal is folded to a vertical position. At this time, the traction rope will gradually loosen, and the locking pin will slide towards the connecting rod and insert into the two locking holes under the action of the push spring, thus achieving the purpose of locking the sliding ring and the push rod to the connecting rod. When it is needed, simply rotate the foot pedal to unfold it. The foot pedal will drive the drive cam to rotate, thereby pulling the traction rope, which can pull the locking pin away from the locking hole and release the locking pin from the positioning of the sliding ring and the push rod, so that the push rod, the sliding ring and the foot pedal can slide normally afterward, which facilitates the subsequent soil sampling process.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. During the process of inserting the cannula into the soil by holding the handle, pressure is applied by stepping on the foot pedal, thereby reducing the force exerted by the hands and making the insertion process easier and faster, thus improving soil sampling efficiency. When it is necessary to push the soil out of the cannula, the sliding ring is connected to the push rod, and then the foot pedal is stepped on. This allows the force exerted by the legs to drive the push rod to slide, thereby pushing the soil out of the cannula. This further reduces the effort required by the hands and makes the soil pushing process more efficient, improving the convenience of soil sampling. 2. When soil sampling is completed and the sampling equipment needs to be stored, the push rod is retracted into the connecting rod and the insertion tube. Then, the sliding ring is slid so that the locking pin passes through the locking holes on the push rod and the connecting rod at the same time, thereby locking the sliding ring and the push rod to the connecting rod. This reduces the possibility of the push rod and the sliding ring sliding during storage and improves the stability during storage. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a partial cross-sectional view of the sliding ring according to an embodiment of this application; Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is an exploded structural diagram of the connection hole in an embodiment of this application; Figure 5 yes Figure 1 A magnified structural diagram of part B in the middle section; Figure 6 This is a partial cross-sectional structural diagram of an embodiment of this application; Figure 7 yes Figure 6 A magnified structural diagram of section C; Figure 8 yes Figure 6 A magnified structural diagram of part D in the middle.

[0028] Explanation of reference numerals in the attached drawings: 1. Insertion tube; 11. Connecting rod; 111. Sliding hole; 112. Locking hole; 2. Hand handle; 3. Push rod; 31. Bulldozer head; 32. Connecting hole; 321. Magnet; 33. Limiting groove; 4. Sliding ring; 5. Foot pedal; 51. Drive cam; 52. Traction rope; 6. Connecting pin; 61. Push spring; 62. Snap connector; 63. Clearance hole; 7. Push column; 8. Locking pin; 81. Push spring. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0030] This application discloses a soil and rock sampling device for geological exploration. (Refer to...) Figure 1A soil and rock sampling device for geological exploration includes a tube 1, a handle 2, a push rod 3, and a bulldozer head 31. The tube 1 extends vertically with a closed upper end and an open lower end. A vertically extending connecting rod 11 is coaxially fixed to the upper end of the tube 1. The diameter of the connecting rod 11 is smaller than the diameter of the tube 1. The handle 2 extends horizontally and is fixed to the top of the connecting rod 11. The push rod 3 extends vertically and is inserted through and slidably connected to the connecting rod 11 and the inside of the tube 1. The bulldozer head 31 is located inside the tube 1 and abuts against the inner wall of the tube 1. The bulldozer head 31 is fixed to the lower end of the push rod 3.

[0031] When using it, hold the handle 2 and insert the tube 1 into the soil, then pull it out so that some soil will be collected inside the tube 1. Finally, push the push rod 3 so that the push head 31 can push out the soil inside the tube 1, thereby completing the entire soil sampling process.

[0032] Reference Figure 2 and Figure 3 Meanwhile, the connecting rod 11 has a sliding hole 111 penetrating its side wall. The sliding hole 111 is an elongated hole extending along the length of the connecting rod 11. A sliding ring 4 is sleeved on and slidably connected to the connecting rod 11. The sliding ring 4 has a locking part that engages within the sliding hole 111. A foot pedal 5 is connected to the sliding ring 4, and a connecting pin 6 is inserted through and slidably connected to the sliding ring 4. At this time, the push rod 3 has a connecting hole 32 on the side facing the sliding hole 111, allowing the connecting pin 6 to either enter the connecting hole 32 or be located outside the connecting hole 32.

[0033] Furthermore, while holding the handle 2 to insert the cannula 1 into the soil, the sliding ring 4 can be slid to the position of abutting the top of the cannula 1. Then, pressure can be applied by stepping on the foot pedal 5, thereby reducing the force exerted by the hand, making the insertion of the cannula 1 into the soil more convenient, while increasing the insertion speed and improving the soil sampling efficiency.

[0034] Furthermore, when the soil inside the insertion tube 1 needs to be pushed out after the insertion tube 1 is pulled out of the soil, the sliding ring 4 can be slid toward the handle 2, and then the connecting pin 6 can be inserted into the connecting hole 32 on the push rod 3. Then, the foot pedal 5 can be stepped on, and the push rod 3 can be driven to slide by the leg force, thereby pushing out the soil inside the insertion tube 1, thus further realizing the effect of saving hand effort, and the soil pushing process is more efficient, thus improving the convenience of soil sampling.

[0035] Reference Figure 4The end of the connecting pin 6 facing the push rod 3 has multiple snap-fit ​​connectors 62, which are arranged vertically. The push rod 3 has multiple connecting holes 32, which correspond to multiple snap-fit ​​connectors 62 respectively. This allows the multiple snap-fit ​​connectors 62 to be inserted into the multiple connecting holes 32 when the connecting pin 6 slides towards the push rod 3, thereby improving the stability of the connecting pin 6 when it is inserted into the push rod 3.

[0036] Reference Figure 4 The sliding ring 4 is equipped with a push spring 61. The two ends of the push spring 61 are connected to the connecting pin 6 and the sliding ring 4 respectively, so that the push spring 61 can push the connecting pin 6 to slide toward the connecting hole 32. Then, when the snap connector 62 moves to the position corresponding to the connecting hole 32, the snap connector 62 can be automatically inserted into the connecting hole 32 by the action of the push spring 61, thereby automatically achieving docking. This makes the whole process of connecting the connecting pin 6 to the push rod 3 more convenient and automated.

[0037] Reference Figure 4 In addition, a magnet 321 is fixed to the bottom wall of the connection hole 32, and a metal part is provided at the end of the snap-fit ​​connector 62 facing the connection hole 32, so that the magnet 321 can attract the metal part, thereby making the interlocking effect better and the stability better when the snap-fit ​​connector 62 is inserted into the connection hole 32.

[0038] Reference Figure 5 The push rod 3 has a limiting groove 33 extending along its own length on its side wall. The connecting rod 11 is engaged with the limiting groove 33, so that the limiting groove 33 has a limiting effect on the rotation of the push rod 3, thereby reducing the possibility that the connecting hole 32 will be misaligned and the snap-fit ​​connector 62 will be difficult to cooperate with the connecting hole 32, thus ensuring the use effect.

[0039] Reference Figure 2 , Figure 3 and Figure 4 The upper end of the insertion tube 1 is fixed with a vertically extending push post 7, the upper end of which points towards the connecting pin 6. The upper end of the push post 7 is provided with an inclined surface, making the upper end of the push post 7 wedge-shaped. At this time, the connecting pin 6 has an clearance hole 63, which allows the push post 7 to be inserted into the clearance hole 63, and the inclined surface on the push post 7 can abut against the edge of the clearance hole 63 and push the connecting pin 6 away from the connecting hole 32 to slide. The sliding ring 4 has a through hole corresponding to the position of the push post 7.

[0040] In use, as the foot pedal 5 is stepped on to drive the push rod 3 to push the soil out of the insertion tube 1, the sliding ring 4 gradually comes into contact with the upper end of the insertion tube 1. At this time, the push rod 7 inserts into the connecting hole 32 on the sliding ring 4 and the connecting pin 6. This causes the push rod 7 to drive the connecting pin 6 away from the connecting hole 32, disengaging the locking connector 62 from the connecting hole 32 and releasing the connection between the connecting pin 6 and the push rod 3. After the soil is removed from the insertion tube 1, the foot pedal 5 is held in place, allowing the insertion tube 1 to be inserted into the soil again by applying pressure with the leg for subsequent soil sampling, resulting in better soil sampling efficiency. Furthermore, as the soil enters the insertion tube 1, the push rod 3 can slide upwards without being restricted by the connecting pin 6, facilitating smooth subsequent soil sampling and making continuous soil sampling more convenient.

[0041] In actual use, the location of the connecting hole 32 can be reasonably set according to the requirements, so that when the foot pedal 5 and the sliding ring 4 push the push rod 3 to slide, the push rod 3 can push the soil in the insertion tube 1 out at the same time, or after the soil is pushed out, the push column 7 is inserted into the clearance hole 63 in the connecting pin 6, and then pushes the connecting pin 6 to disengage from the connecting hole 32, so as to ensure the complete removal of the soil.

[0042] Reference Figure 6 To minimize the space occupied by the sampling equipment during storage or transportation and to facilitate its placement, the foot pedal 5 is hinged to the sliding ring 4. This allows the foot pedal 5 to be rotated upwards and folded after use, reducing the possibility of injury to personnel or other objects caused by its outward protrusion and improving the ease of placement. The sliding ring 4 also features a limiting part located below the foot pedal 5. When the foot pedal 5 is unfolded during use, it abuts against the limiting part, ensuring its stable unfolded position and facilitating foot operation.

[0043] Reference Figure 6 and Figure 7 Both the side wall of the connecting rod 11 and the push rod 3 are provided with locking holes 112, and the two locking holes 112 can be located on the same straight line when the push rod 3 is stored inside the connecting rod 11. At this time, the sliding ring 4 is slidably connected to the locking pin 8, and the locking pin 8 is provided with a push spring 81. The two ends of the push spring 81 are respectively connected to the locking pin 8 and the sliding ring 4. The push spring 81 can push the locking pin 8 to slide towards the connecting rod 11, so that the locking pin 8 can be simultaneously inserted into the locking hole 112 on the connecting rod 11 and the locking hole 112 on the push rod 3.

[0044] Reference Figure 7 and Figure 8In addition, a drive cam 51 is fixed to the hinge of the foot pedal 5, and a traction rope 52 is provided inside the sliding ring 4. The two ends of the traction rope 52 are fixed to the locking pin 8 and the protrusion of the drive cam 51, respectively.

[0045] When using the equipment, after soil sampling is completed and the equipment needs to be stored, the sliding ring 4 can be placed at the upper end of the insertion tube 1, so that the locking hole 112 on the connecting rod 11 corresponds to the locking pin 8. Then, the push rod 3 is retracted into the connecting rod 11 and the insertion tube 1, and the locking hole 112 on the push rod 3 also corresponds to the locking pin 8. Finally, the foot pedal 5 is folded to a vertical position. At this time, the traction rope 52 will gradually loosen, and the locking pin 8 will slide towards the connecting rod 11 and be inserted into the two locking holes 112 under the action of the push spring 81 (at this time, the connecting pin 6 is in a state of being disengaged from the connecting hole 32). This achieves the effect of locking the sliding ring 4 and the push rod 3 to the connecting rod 11. This reduces the possibility of the push rod 3 sliding out on its own during subsequent storage, and also reduces the possibility of the sliding ring 4 swinging continuously, making it easier to store and transport the sampling equipment.

[0046] When needed, simply rotate the foot pedal 5 to unfold it. The foot pedal 5 will drive the drive cam 51 to rotate, thereby pulling the traction rope 52, which will pull the locking pin 8 away from the locking hole 112 and release the locking pin 8 from the positioning of the sliding ring 4. This allows the sliding ring 4 and the foot pedal 5 to slide normally on the connecting rod 11, facilitating the subsequent soil sampling process.

[0047] Furthermore, when the foot pedal 5 is in the folded state, the push spring 81 pushes the locking pin 8, thereby exerting a certain traction force on the traction rope 52, which can improve the stability of the foot pedal 5 in the folded state.

[0048] The implementation principle of a soil and rock sampling device for geological exploration in this application embodiment is as follows: When in use, when holding the handle 2 and inserting the tube 1 into the soil, pressure can be applied by stepping on the foot pedal 5, thereby reducing the force exerted by the hand, making the insertion process of the tube 1 into the soil more convenient, while increasing the insertion speed and improving the soil sampling efficiency.

[0049] After the insertion tube 1 is pulled out of the soil, when it is necessary to push the soil out of the insertion tube 1, slide the sliding ring 4 toward the handle 2, then insert the connecting pin 6 into the connecting hole 32 on the push rod 3, and then continue to step on the foot pedal 5, so that the push rod 3 can be driven to slide by the leg force, thereby pushing out the soil in the insertion tube 1, thus further realizing the effect of saving hand effort, and the soil pushing process is more efficient, thus improving the convenience of soil sampling.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A soil and rock sampling device for geological exploration, comprising a tube (1), a handle (2), a push rod (3), and a bulldozer head (31), wherein the tube (1) extends vertically and is closed at the upper end and open at the lower end; a vertically extending connecting rod (11) is fixed at the upper end of the tube (1); the handle (2) is fixed to the connecting rod (11); the push rod (3) is simultaneously inserted vertically and slidably connected to the connecting rod (11) and the tube (1); and the bulldozer head (31) is located inside the tube (1) and fixed to the lower end of the push rod (3), characterized in that: The connecting rod (11) is fitted with and slidably connected to a sliding ring (4), the sliding ring (4) is equipped with a foot pedal (5), and the sliding ring (4) is used to abut against the upper end of the insertion tube (1) or is detachably connected to the push rod (3); the connecting rod (11) has a sliding hole (111) that penetrates the side wall, the sliding hole (111) extends along the length of the connecting rod (11), the sliding ring (4) is fitted with and slidably connected to a connecting pin (6), and the push rod (3) has a connecting hole (32) for cooperating with the connecting pin (6); the sliding ring (4) is formed with a snap-fit ​​part. The snap-fit ​​part snaps into the sliding hole (111); the sliding ring (4) is provided with a push spring (61), which is used to drive the connecting pin (6) to slide toward the connecting hole (32); the upper end of the insertion tube (1) is fixed with a vertically extending push column (7), the upper end of the push column (7) points to the connecting pin (6), and the upper end of the push column (7) is set with a wedge structure; the connecting pin (6) is provided with a clearance hole (63) for the push column (7) to pass through; and the sliding ring (4) is provided with a through hole corresponding to the position of the push column (7).

2. The soil and rock sampling equipment for geological exploration according to claim 1, characterized in that: A magnet (321) is fixed to the bottom wall of the connecting hole (32), and a metal part for being attracted by the magnet (321) is provided at one end of the connecting pin (6) facing the connecting hole (32).

3. The soil and rock sampling equipment for geological exploration according to claim 1, characterized in that: The push rod (3) has a limiting groove (33) extending along its own length on its side wall, and the connecting rod (11) is engaged in the limiting groove (33).

4. The soil and rock sampling equipment for geological exploration according to claim 1, characterized in that: The connecting pin (6) has multiple snap-fit ​​connectors (62) formed on one end facing the push rod (3). The push rod (3) has multiple connecting holes (32), and the multiple connecting holes (32) are respectively matched with the multiple snap-fit ​​connectors (62).

5. A soil and rock sampling device for geological exploration according to claim 1, characterized in that: The foot pedal (5) is hinged to the sliding ring (4), the sliding ring (4) is formed with a limiting part, and the limiting part is located below the foot pedal (5).

6. A soil and rock sampling device for geological exploration according to claim 5, characterized in that: Both the connecting rod (11) and the push rod (3) are provided with locking holes (112). The sliding ring (4) is connected to a locking pin (8) for inserting into the locking hole (112). The locking pin (8) is provided with a push spring (81). The push spring (81) is used to drive the locking pin (8) to slide toward the locking hole (112).

7. A soil and rock sampling device for geological exploration according to claim 6, characterized in that: The foot pedal (5) has a drive cam (51) fixed at its hinge. A traction rope (52) is provided inside the sliding ring (4). The two ends of the traction rope (52) are fixed to the locking pin (8) and the protrusion of the drive cam (51), respectively.

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