Geological exploration steel pipe sampling mechanism

Abstract

The invention relates to the technical field of geological exploration, and discloses a geological exploration steel pipe sampling mechanism which comprises a sampling barrel body and a supporting frame far away from the sampling barrel body, a steel pipe supporting column is integrally installed on the upper side of the sampling barrel body, a movable hole is formed in the supporting frame, and the steel pipe supporting column is slidably inserted into the movable hole in a penetrating mode. The steel pipe supporting column is in sliding fit with the supporting frame, a connecting column is installed on the inner wall of the sampling barrel body, an expansion mechanism is installed on the bottom side of the connecting column, a sampling plate is installed at the movable end of the expansion mechanism, and the expansion mechanism comprises a telescopic rod used for dragging the sampling plate and a track groove used for controlling the telescopic rod to move. The flexibility and adaptability of operation are improved; the sampling barrel body is pushed in the mode that the motor drives the gear and the threads are matched, so that the sampling process is high in automation degree and even in force application, damage to the soil texture structure in a traditional mode can be effectively avoided, it is guaranteed that the obtained sample is closer to the real geological condition, and the accuracy of the geological exploration result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, and particularly to a geological exploration steel pipe sampling mechanism. Background Art

[0002] In the field of geological exploration, accurately obtaining geological samples at different depths underground is of crucial significance for understanding the stratum structure, rock properties, mineral distribution, etc. Traditional geological exploration sampling methods have many limitations. The simple tools used in the past are difficult to reach deeper positions underground to obtain samples, and the integrity of the obtained samples is poor, being easily interfered with and damaged by external factors, resulting in the samples not being able to truly reflect the actual geological conditions underground. In addition, for different geological conditions, such as hard rock layers, loose sandy soil layers, etc., there is a lack of highly targeted and efficient sampling means. Moreover, some existing sampling mechanisms are complex to operate, requiring a large amount of human and time costs, and are not well adapted to the complex field environment, making it difficult to meet the increasing high-precision and high-efficiency requirements of geological exploration. Geological exploration is of great significance in understanding geological structures, evaluating resources, and disaster prediction, etc. However, traditional sampling methods such as manual excavation are inefficient and can only obtain shallow-layer samples, while large drilling equipment has problems such as large volume, complex operation, high cost, and limited application scope. Therefore, the development of a new type of geological exploration steel pipe sampling mechanism has become an urgent need in the current development of geological exploration technology.

[0003] Currently, traditional geological sampling commonly uses shovels or screw rods. Shovels can only obtain surface or shallow-layer samples. Although screw rods can penetrate deep underground, they will disperse the soil during drilling, destroying the original structure and layers of the soil, making it difficult to accurately observe the soil quality and restore the true geological conditions in the follow-up; therefore, it does not meet the existing requirements, and for this reason, we propose a geological exploration steel pipe sampling mechanism. Summary of the Invention

[0004] The present invention provides a geological exploration steel pipe sampling mechanism, which has the beneficial effect of being able to sample and hold the soil, and solves the problem mentioned in the above background art that traditional geological sampling commonly uses shovels or screw rods. Shovels can only obtain surface or shallow-layer samples. Although screw rods can penetrate deep underground, they will disperse the soil during drilling, destroying the original structure and layers of the soil, making it difficult to accurately observe the soil quality and restore the true geological conditions in the follow-up.

[0005] The present invention provides the following technical solution: a geological exploration steel pipe sampling mechanism, including a sampling cylinder body and a support frame away from the sampling cylinder body. A steel pipe support column is integrally installed on the upper side of the sampling cylinder body. An activity hole is provided on the support frame. The steel pipe support column is slidably inserted into the activity hole, and the steel pipe support column is slidably matched with the support frame. A connecting column is installed on the inner wall of the sampling cylinder body. An expansion mechanism is installed on the bottom side of the connecting column. A sampling plate is installed at the movable end of the expansion mechanism. The expansion mechanism includes a telescopic rod for pulling the sampling plate and a track groove for controlling the movement track of the telescopic rod.

[0006] As an optional solution of the geological exploration steel pipe sampling mechanism of the present invention, wherein: the expansion mechanism further includes a connecting plate installed on the bottom side of the connecting column, a rotating gear rotatably installed on the connecting column, and a driving gear rotatably installed on the connecting plate. A driving motor is installed on the driving gear. The driving gear meshes with the rotating gear. The track groove is opened on the rotating gear.

[0007] As an optional solution of the geological exploration steel pipe sampling mechanism of the present invention, wherein: a plurality of sliding grooves are opened on the connecting plate. The telescopic rod is slidably matched inside the sliding groove. A sliding column is installed on the telescopic rod. The sliding column is slidably matched inside the track groove. There are a plurality of sliding grooves, and the plurality of sliding grooves are arranged in a circumferential array on the connecting plate. A buckle is integrally installed on the sliding column.

[0008] As an optional solution of the geological exploration steel pipe sampling mechanism of the present invention, wherein: a plurality of activity grooves are symmetrically opened on the sampling plates. An arc-shaped plate is installed between every two sampling plates. The end parts of the arc-shaped plate are respectively slidably matched with the activity grooves. A first spring is installed between the activity groove and the arc-shaped plate.

[0009] As an optional solution of the geological exploration steel pipe sampling mechanism of the present invention, wherein: connecting rods are symmetrically installed on the bottom side of the support frame. A fixing seat is installed at the end of the connecting rod away from the bottom side of the support frame. The connecting rod is slidably matched inside the fixing seat. Connecting holes are opened on the fixing seat and the outer side of the connecting rod.

[0010] As an optional solution of the geological exploration steel pipe sampling mechanism of the present invention, wherein: there are a plurality of connecting holes, and the plurality of connecting holes are arranged in a linear array on the outer sides of the fixing seat and the connecting rod. Bolts are installed at the overlapping positions of the connecting holes on the outer sides of the fixing seat and the connecting rod.

[0011] As an optional solution of a geological exploration steel pipe sampling mechanism described in the present invention, a support base is installed on the bottom side of the support frame, a No. 1 gear is installed on one side of the support base, a No. 1 motor is installed on the other side of the support base, and the rotating shaft of the No. 1 motor is connected to the No. 1 gear.

[0012] As an optional solution of the geological exploration steel pipe sampling mechanism described in the present invention, a second gear is rotatably mounted on the bottom side of the support seat, and the second gear is engaged with the first gear.

[0013] As an optional solution of the geological exploration steel pipe sampling mechanism described in the present invention, the interior of the No. 2 gear is communicated with the movable hole, a docking thread section is provided on the surface of the steel pipe support column, and a connecting thread section adapted to the docking thread section is provided inside the No. 2 gear.

[0014] As an optional solution for a geological exploration steel pipe sampling mechanism described in the present invention, a matching digging plate is installed on the bottom side of the sampling plate, the wall thickness of the bottom side of the digging plate is smaller than that of the upper side, and a one-way torsion spring is installed between the digging plate and the sampling plate.

[0015] The present invention has the following beneficial effects: 1. This geological exploration steel pipe sampling mechanism, when taking geological sampling, first place the support frame on the ground, and use the fixing base to make it higher than the ground, and the height can be adjusted through the connecting holes and bolts. To start sampling, start the No. 1 motor to drive the No. 1 gear. The No. 1 gear cooperates with the No. 2 gear to rotate the No. 2 gear. After docking and connecting the threaded sections, the sampling tube body is pushed to extend underground; the sampling tube applies pressure to the ground, and the soil enters the tube to complete the sampling. This solution can adapt to different ground conditions and sampling requirements, provide stable and convenient support for sampling operations, and improve the flexibility and adaptability of operations; the second solution is to use a motor-driven gear and threaded combination to push the sampling tube body, so that the sampling process is highly automated and the force is evenly applied. It can effectively avoid the damage to the soil structure by traditional methods, ensure that the samples obtained are closer to the actual geological conditions, and improve the accuracy of geological exploration results.

[0016] 2. This geological exploration steel pipe sampling mechanism, through the structural coordination of a drive motor, gear transmission, track groove, sliding column, and telescopic rod, can flexibly adjust the distance between sampling plates, thereby changing the sampling diameter. This allows it to accurately collect soil samples of appropriate areas according to different soil environments, research objectives, and actual needs, greatly improving the flexibility and targetedness of sampling work. This not only improves sampling efficiency and reduces unnecessary repetitive work, but also ensures that the collected samples are more representative, providing more accurate data support for subsequent soil analysis and research, and effectively promoting the development of related research and work.

[0017] 3. In terms of adjusting the sampling diameter, for this geological exploration steel pipe sampling mechanism, the arc-shaped plate slides in the movable groove and cooperates with the first spring to achieve the functions of buffering and resetting, making the device operate stably, the components slide smoothly, avoiding rigid collisions, and effectively improving the durability of the device. During the sampling process, the special design that the thickness of the bottom side wall of the digging plate is smaller than that of the upper side can reduce the resistance of inserting into the soil. At the same time, the one-way torsion spring enables the digging plate to rotate flexibly according to the soil resistance and terrain, facilitating smooth cutting into the soil and greatly improving the sampling efficiency. Moreover, when the device is lifted after sampling, the one-way torsion spring can limit the reverse rotation of the digging plate to prevent the collected soil samples from falling, ensuring the effectiveness and accuracy of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a three-dimensional structure schematic diagram of the present invention.

[0019] Figure 2 FIG. is a schematic diagram of the cooperation structure of the connecting rod and the fixed seat of the present invention.

[0020] Figure 3 FIG. is a schematic diagram of the internal sectional structure of the sampling cylinder body of the present invention.

[0021] Figure 4 FIG. is a top view structure schematic diagram of the expansion mechanism of the present invention.

[0022] Figure 5 FIG. is a three-dimensional structure schematic diagram of the expansion mechanism of the present invention.

[0023] Figure 6 FIG. is a bottom view structure schematic diagram of the expansion mechanism of the present invention.

[0024] In the figure: 110, sampling cylinder body; 111, support frame; 112, steel pipe support column; 113, movable hole; 114, connecting column; 120, sampling plate; 130, expansion mechanism; 131, telescopic rod; 132, track groove; 133, connecting plate; 134, rotating gear; 135, driving gear; 140, driving motor; 142, chute; 143, sliding column; 144, buckle; 150, movable groove; 151, arc-shaped plate; 152, first spring; 153, connecting rod; 154, fixed seat; 155, connecting hole; 160, bolt; 170, support seat; 171, first gear; 172, first motor; 173, second gear; 174, docking thread section; 175, connecting thread section; 180, digging plate; 181, one-way torsion spring. DETAILED DESCRIPTION OF THE INVENTION

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1. This embodiment aims to facilitate the solution of the common shovels or screw rods used in traditional geological sampling. The shovel can only take surface or shallow samples. Although the screw rod can penetrate deep into the ground, it will disperse the soil when drilling, destroying the original structure and layers of the soil, making it difficult to accurately observe the soil quality and restore the true geological conditions in the follow-up. Please refer to Figures 1 - 6 , a geological exploration steel pipe sampling mechanism, including a sampling cylinder body 110 and a support frame 111 away from the sampling cylinder body 110. A steel pipe support column 112 is integrally installed on the upper side of the sampling cylinder body 110. An activity hole 113 is opened on the support frame 111. The steel pipe support column 112 slides through the activity hole 113. The steel pipe support column 112 is slidably fitted on the support frame 111. A connecting column 114 is installed on the inner wall of the sampling cylinder body 110.

[0027] Symmetrically installed on the bottom side of the support frame 111 are connecting rods 153. Away from the bottom side of the support frame 111, the connecting rods 153 are installed with fixing seats 154. The connecting rods 153 are slidably fitted inside the fixing seats 154. Connection holes 155 are opened on the outer sides of the fixing seats 154 and the connecting rods 153. There are several connection holes 155. The several connection holes 155 are linearly arrayed on the outer sides of the fixing seats 154 and the connecting rods 153. Bolts 160 are installed at the overlapping positions of the connection holes 155 on the outer sides of the fixing seats 154 and the connecting rods 153. The symmetrically installed connecting rods 153 on the bottom side of the support frame 111 can be slidably fitted inside the fixing seats 154. This design enables the relative position between the support frame 111 and the fixing seats 154 to change, thereby realizing the adjustment of the overall height of the device. When it is necessary to increase the height of the device, the connecting rods 153 can be pulled outwards from the fixing seats 154; conversely, if it is necessary to reduce the height of the device, the connecting rods 153 are pushed into the fixing seats 154.

[0028] During specific implementation, when in use, the support frame 111 is placed on the ground. Due to the cooperation of the fixing seats 154, the support frame 111 can be higher than the ground, facilitating the application of force to the sampling cylinder body 110; moreover, through the cooperation of the connection holes 155 and the bolts 160, the height of the support frame 111 from the ground can be adjusted.

[0029] A support base 170 is installed on the bottom side of the support frame 111. A first gear 171 is installed on one side of the support base 170, and a first motor 172 is installed on the other side of the support base 170. The rotating shaft of the first motor 172 is connected to the first gear 171. A second gear 173 is rotatably installed on the bottom side of the support base 170. The second gear 173 meshes with the first gear 171. The inside of the second gear 173 communicates with the movable hole 113. A butt joint thread section 174 is provided on the surface of the steel pipe support column 112, and a connecting thread section 175 adapted to the butt joint thread section 174 is provided inside the second gear 173.

[0030] When the device works, the first motor 172 is started as a power source. Its rotating shaft drives the first gear 171 connected thereto to rotate. The first gear 171 meshes with the second gear 173 rotatably installed on the bottom side of the support base 170, so that the rotation of the first gear 171 is transmitted to the second gear 173, driving the second gear 173 to rotate around its own rotation axis. Since the connecting thread section 175 inside the second gear 173 is adapted to the butt joint thread section 174 on the surface of the steel pipe support column 112, when the second gear 173 rotates, the thread fit between the two causes the second gear 173 to move up and down along the steel pipe support column 112. Also, because the second gear 173 is installed on the support base 170, and the support base 170 is installed on the bottom side of the support frame 111, the movement of the second gear 173 drives the support frame 111 to move up and down, realizing the adjustment of the height of the support frame 111. At the same time, the inside of the second gear 173 communicates with the movable hole 113, ensuring the reasonable internal structure of the device and enabling each component to operate normally during the height adjustment process to avoid interference.

[0031] During specific implementation, when prospecting the land, the support frame 111 is placed on the ground. Subsequently, the first motor 172 operates and drives the first gear 171 to rotate. Due to the cooperation between the first gear 171 and the second gear 173, the second gear 173 rotates. At the same time, by using the cooperation between the butt joint thread section 174 and the connecting thread section 175, the sampling tube body 110 extends downward to the ground. Therefore, the land is pressed by the sampling tube body 110, and the soil reaches the inside of the sampling tube body 110 to complete the sampling.

[0032] In this embodiment: When the geological sampling mechanism works, first place the support frame 111 on the ground. With the help of the fixed seat 154, the support frame 111 is higher than the ground, which is convenient for applying force to the sampling cylinder body 110. The height of the support frame 111 can also be adjusted by the cooperation of the connection hole 155 and the bolt 160. When prospecting the land, start the first motor 172 to drive the first gear 171 to rotate. The first gear 171 and the second gear 173 cooperate to make the second gear 173 rotate. Then, by the cooperation of the butt joint thread section 174 and the connection thread section 175, the sampling cylinder body 110 extends underground, presses the land to make the soil enter the inside of the sampling cylinder body 110 to complete the sampling.

[0033] Embodiment 2. This embodiment aims to facilitate the solution of the problem that in soil sampling work, different environmental conditions often require collecting soil samples of different areas. However, the sampling diameter of the currently used sampling cylinder is fixed and unchanged, and it is difficult to flexibly adapt to diverse sampling requirements. This embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figures 1 - 6 , an expansion mechanism 130 is installed on the bottom side of the connecting column 114. A sampling plate 120 is installed at the movable end of the expansion mechanism 130. The expansion mechanism 130 includes a telescopic rod 131 for pulling the sampling plate 120, and a track groove 132 for controlling the movement track of the telescopic rod 131. The expansion mechanism 130 further includes a connecting plate 133 installed on the bottom side of the connecting column 114, a rotating gear 134 rotatably installed on the connecting column 114, and a driving gear 135 rotatably installed on the connecting plate 133. A driving motor 140 is installed on the driving gear 135. The driving gear 135 meshes with the rotating gear 134, and the track groove 132 is opened on the rotating gear 134.

[0034] A plurality of sliding grooves 142 are opened on the connecting plate 133. The telescopic rod 131 is slidably fitted inside the sliding groove 142. A sliding column 143 is installed on the telescopic rod 131. The sliding column 143 is slidably fitted inside the track groove 132. There are a plurality of sliding grooves 142, and the plurality of sliding grooves 142 are arranged in a circular array on the connecting plate 133. A clamping plate 144 is integrally installed on the sliding column 143.

[0035] During specific implementation, during the process of adjusting the sampling diameter, start the driving motor 140, so that the driving motor 140 drives the driving gear 135 to rotate, and drives the rotating gear 134 to rotate during the rotation process. During the rotation of the rotating gear 134, rotation occurs, so that the track groove 132 rotates together. Therefore, after the path of the track groove 132 changes, the changed path track groove 132 pushes the sliding column 143, so that the sliding column 143 drives the telescopic rod 131 to move, so that a plurality of telescopic rods 131 extend to adjust the distance between a plurality of sampling plates 120. Therefore, the diameter of the sampled land is adjusted to adapt to diverse sampling requirements.

[0036] In this embodiment: When it is necessary to adjust the sampling diameter to meet diverse sampling requirements, the driving motor 140 is started. The driving motor 140 drives the driving gear 135 to rotate. Since the driving gear 135 meshes with the rotating gear 134, the driving gear 135 drives the rotating gear 134 to rotate synchronously during rotation. Also, because the rotating gear 134 is connected to the track groove 132, when the rotating gear 134 rotates, the track groove 132 rotates together, causing the path of the track groove 132 to change. The sliding column 143 cooperates with the track groove 132, and the track groove 132 with the changed path will push the sliding column 143. Since the sliding column 143 is connected to the telescopic rod 131, the sliding column 143 drives the telescopic rod 131 to move. Several sampling plates 120 of the device are respectively connected to the corresponding telescopic rods 131. After the telescopic rods 131 move, the distances between the several sampling plates 120 are adjusted, thereby realizing the adjustment of the sampling land diameter.

[0037] Embodiment 3. The purpose of this embodiment is to promote the solution of problems. This embodiment is an improvement made on the basis of Embodiment 2. Specifically, please refer to Figures 1 - 6 , and movable grooves 150 are symmetrically formed on several sampling plates 120. An arc-shaped plate 151 is installed between every two sampling plates 120. The end parts of the arc-shaped plate 151 are respectively in sliding fit with the movable grooves 150. A first spring 152 is installed between the movable groove 150 and the arc-shaped plate 151. When the distance between the sampling plates 120 is adjusted to change the sampling diameter, the arc-shaped plate 151 will slide in the movable groove 150. If the distance between the sampling plates 120 increases, the arc-shaped plate 151 will partially slide out of the movable groove 150. At this time, the first spring 152 will be stretched and store elastic potential energy. On the contrary, when the distance between the sampling plates 120 decreases, the arc-shaped plate 151 will slide into the movable groove 150, and the first spring 152 will be compressed and also store elastic potential energy. The presence of the first spring 152 enables the arc-shaped plate 151 to have a buffering and resetting effect during the sliding process. It can ensure that the sliding of the arc-shaped plate 151 in the movable groove 150 is more stable. At the same time, after the distance adjustment of the sampling plates 120 is completed, it can assist in maintaining the relative position between the arc-shaped plate 151 and the sampling plates 120. And when the external force is withdrawn, it can prompt the device to return to the initial state and prevent damage caused by rigid collision between components, improving the stability and durability of the device.

[0038] A matching cutting plate 180 is installed on the bottom side of the sampling plate 120. The wall thickness of the bottom side of the cutting plate 180 is smaller than that of the upper side. A one-way torsion spring 181 is installed between the cutting plate 180 and the sampling plate 120, and the wall thickness of the bottom side of the cutting plate 180 is smaller than that of the upper side. This design makes it easier for the cutting plate 180 to insert into the soil and can reduce the insertion resistance. A one-way torsion spring 181 is installed between the cutting plate 180 and the sampling plate 120. When the device moves downward for soil sampling, the cutting plate 180 is subjected to the resistance of the soil. During this process, the one-way torsion spring 181 allows the cutting plate 180 to rotate a certain angle around the connection point with the sampling plate 120 in a specific direction to better adapt to the soil resistance and terrain conditions, so that the cutting plate 180 can smoothly cut into the soil and facilitate the collection of soil samples. When the sampling is completed and the device is lifted upward, the one-way torsion spring 181 will limit the reverse rotation of the cutting plate 180, maintain the angle of the cutting plate 180, prevent the collected soil samples from falling out of the cutting plate 180, and ensure the effectiveness and accuracy of sampling.

[0039] In this embodiment: When adjusting the sampling diameter, the distance between the sampling plates 120 changes, causing the arc-shaped plate 151 to slide in the movable groove 150, and the first spring 152 is stretched or compressed accordingly, playing a buffering and resetting role, ensuring smooth sliding of the components, maintaining the relative position, and preventing rigid collisions. When performing soil sampling, the cutting plate 180 with a small bottom wall thickness is subjected to the soil resistance, and the one-way torsion spring 181 allows it to rotate in a specific direction, facilitating cutting into the soil; when the device is lifted after sampling is completed, the one-way torsion spring 181 restricts the reverse rotation of the cutting plate 180 to prevent the sample from falling, ensuring effective and accurate sampling.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A geological exploration steel pipe sampling mechanism, comprising a sampling cylinder body (110) and a support frame (111) away from the sampling cylinder body (110), characterized in that: On the upper side of the sampling cylinder body (110), a steel pipe support column (112) is integrally installed. An activity hole (113) is formed on the support frame (111). The steel pipe support column (112) is slidably inserted into the activity hole (113). The steel pipe support column (112) is slidably engaged with the support frame (111). A connecting column (114) is installed on the inner wall of the sampling cylinder body (110). An expansion mechanism (130) is installed on the bottom side of the connecting column (114). A sampling plate (120) is installed at the movable end of the expansion mechanism (130). The expansion mechanism (130) includes a telescopic rod (131) for pulling the sampling plate (120), and a track groove (132) for controlling the movement track of the telescopic rod (131).

2. The geological exploration steel pipe sampling mechanism according to claim 1, characterized in that: The expansion mechanism (130) further includes a connecting plate (133) installed on the bottom side of the connecting column (114), a rotating gear (134) rotatably installed on the connecting column (114), and a driving gear (135) rotatably installed on the connecting plate (133). A driving motor (140) is installed on the driving gear (135). The driving gear (135) is engaged with the rotating gear (134). The track groove (132) is formed on the rotating gear (134).

3. The geological exploration steel pipe sampling mechanism according to claim 2, characterized in that: A plurality of chute grooves (142) are formed on the connecting plate (133). The telescopic rod (131) is slidably engaged with the chute grooves (142). A sliding column (143) is installed on the telescopic rod (131). The sliding column (143) is slidably engaged with the track groove (132). There are a plurality of chute grooves (142), and the plurality of chute grooves (142) are arranged in a circular array on the connecting plate (133). A clamping plate (144) is integrally installed on the sliding column (143).

4. A geological exploration steel pipe sampling mechanism according to claim 1, characterized in that: A plurality of activity grooves (150) are symmetrically formed on the sampling plates (120). An arc-shaped plate (151) is installed between every two sampling plates (120). The end parts of the arc-shaped plate (151) are respectively slidably engaged with the activity grooves (150). A first spring (152) is installed between the activity groove (150) and the arc-shaped plate (151).

5. The geological exploration steel pipe sampling mechanism according to claim 1, characterized in that: Connecting rods (153) are symmetrically installed on the bottom side of the support frame (111). A fixing seat (154) is installed at the end of the connecting rod (153) away from the bottom side of the support frame (111). The connecting rod (153) is slidably engaged with the fixing seat (154). Connecting holes (155) are formed on the outer sides of the fixing seat (154) and the connecting rod (153).

6. The geological exploration steel pipe sampling mechanism according to claim 5, characterized in that: There are a plurality of connecting holes (155), and the plurality of connecting holes (155) are arranged in a linear array on the outer sides of the fixing seat (154) and the connecting rod (153). A bolt (160) is installed at the overlapping part of the connecting holes (155) on the outer sides of the fixing seat (154) and the connecting rod (153).

7. The geological exploration steel pipe sampling mechanism according to claim 1, characterized in that: A support base (170) is installed on the bottom side of the support frame (111). A first gear (171) is installed on one side of the support base (170), and a first motor (172) is installed on the other side of the support base (170). The rotating shaft of the first motor (172) is connected to the first gear (171).

8. A geological exploration steel pipe sampling mechanism according to claim 7, characterized in that: A second gear (173) is rotatably installed on the bottom side of the support base (170), and the second gear (173) meshes with the first gear (171).

9. The geological exploration steel pipe sampling mechanism according to claim 8, characterized in that: The inside of the second gear (173) communicates with the movable hole (113). A docking thread section (174) is provided on the surface of the steel pipe support column (112), and a connecting thread section (175) adapted to the docking thread section (174) is provided inside the second gear (173).

10. The geological exploration steel pipe sampling mechanism according to claim 1, characterized in that: A matching digging plate (180) is installed on the bottom side of the sampling plate (120). The wall thickness of the bottom side of the digging plate (180) is smaller than that of the upper side. A one-way torsion spring (181) is installed between the digging plate (180) and the sampling plate (120).

Images