Efficient soil sampling mechanism for mountain geological survey

Abstract

The invention discloses an efficient soil sampling mechanism for mountain geological survey, which relates to the technical field of geological sampling and comprises a supporting assembly, a sampling assembly and a pressing assembly. The supporting assembly comprises a supporting table and a side supporting frame with an adjustable inclination angle, and the lower end of the side supporting frame is connected with a supporting seat with a groove through a rotatable connecting seat, so that stable supporting is achieved, and the supporting assembly is matched with the irregular earth surface; the sampling assembly is in threaded connection with the sampling tube and the extension rods through the top cover and is fixed through short bolts, so that the multiple extension rods can be spliced to adapt to deep sampling; the downward pressing assembly applies downward pressure through a U-shaped downward pressing plate and a pedal and is matched with a supporting rod protection part, a driving ring and a rotating disc to drive a sampling pipe to rotate and drill into a soil layer. The mechanism can avoid sampling deviation, improves supporting stability and operation labor-saving performance, is convenient for component maintenance, effectively solves the problems of low mountain soil sampling efficiency and poor stability, and is suitable for mountain geological survey scenes.

Description

Technical Field

[0001] This application relates to the field of geological sampling technology, specifically to an efficient soil sampling organization for mountain geological surveys. Background Technology

[0002] In mountain geological surveys, soil sampling is a crucial step in obtaining geological environmental data. Mountainous terrain is complex and irregular, and access for large sampling equipment is difficult; therefore, small, portable sampling devices are widely used. Existing technologies utilize modular structures to adjust sampling depth and incorporate a foot-feeding mechanism for auxiliary sampling. For example, the utility model patent for a "soil collector" with publication number CN221706980U adjusts the height by extending the pipe thread connection and optimizes operational convenience by using a fixed ring groove to mount the foot-feeding mechanism.

[0003] However, existing sampling equipment still has many shortcomings in practical applications in mountainous areas: First, the support structure has poor adaptability; the support angle of most devices is not adjustable, making it unable to adapt to the irregular surface of mountainous terrain, resulting in insufficient equipment stability during sampling and a tendency to tilt or deviate. Second, the guiding and limiting of sampling components is insufficient; when the sampling tube penetrates deep into the soil layer, it is easy to deviate from the vertical direction, affecting sampling accuracy. Third, the reliability of deep sampling connections is poor; the connection of the extension tube relies solely on threaded fit, which is prone to loosening during rotational sampling. Fourth, the ease of operation and component protection are insufficient; components are prone to bending when stepped on and pressure is applied, and the core components are inconvenient to disassemble and assemble, resulting in low maintenance efficiency. These problems seriously affect the efficiency and stability of soil sampling in mountainous areas, making it difficult to meet the needs of efficient geological surveys. Summary of the Invention

[0004] The technical problem this application aims to solve is: how to provide an efficient soil sampling mechanism that provides stable support, reduces the effort required for pressing down, and allows for adjustable sampling depth in complex terrains such as mountains.

[0005] This application is achieved through the following technical solution:

[0006] A high-efficiency soil sampling mechanism for mountain geological surveys includes a support assembly, a sampling assembly, and a pressing assembly. The sampling assembly includes a sampling tube, a top cover, and an extension rod. The top cover serves as a connector between the sampling tube and the extension rod, and is threadedly connected to the lower end of the extension rod and the upper end of the sampling tube, respectively.

[0007] The support assembly includes a support platform and side supports. The support platform is sleeved on the sampling assembly, and multiple side supports are rotatably arranged on the support platform to guide and support the vertical movement of the sampling assembly.

[0008] The pressing assembly includes an intermediate shaft, a pressing plate, and a pedal. The lower end of the intermediate shaft is inserted into the upper groove of the extension rod. The pressing plate has a U-shaped structure and is mounted upside down on the intermediate shaft. A pedal is slidably provided at the open end of the intermediate shaft. The pedal is used by personnel to step on it and apply additional gravity to help the sampling assembly insert into the soil layer.

[0009] Preferably, the support assembly includes a side support rod, which is rotatably mounted on the support platform. A plug rod is slidably mounted on the side support rod. The side support frame has multiple through holes, and the plug rod is inserted into the through holes to fix the tilt angle between the side support frame and the support platform.

[0010] Preferably, the lower end of the side support is rotatably provided with a connecting seat to adapt to the environment and change the support position. The lower end of the connecting seat is provided with a sliding groove, on which a support seat is slidably provided. The lower end surface of the support seat is provided with multiple grooves for insertion into the surface soil layer to ensure stability.

[0011] Preferably, the upper part of the top cover is a rectangular structure, the main body of the extension rod is a rectangular structure, the two rectangular structures are the same size, the lower end of the extension rod is provided with a connector, the connector is provided with a threaded hole, and a short bolt is threaded on the threaded hole. The short bolt passes through the upper part of the top cover and the connector of the extension rod, and is used to fix the connection between the extension rod and the top cover.

[0012] Preferably, the lower outer end face of the top cover is provided with a thread for screwing into the threaded groove at the upper end of the sampling tube, the upper inner side of the top cover is provided with a thread for screwing into the lower end connector of the extension rod, and the upper end of the extension rod is provided with a threaded groove that matches the thread on the lower end connector of the extension rod for connecting multiple extension rods.

[0013] Preferably, a drive ring is inserted into the support platform. The drive ring has a multi-layer stepped structure. The lower part of the drive ring is a smooth surface for connecting with the support platform. A vertical groove is provided in the middle of the drive ring for connecting external driving force. A retaining ring is provided in the upper part of the drive ring for limiting the movement of the parts sleeved on the drive ring. The drive ring has internal threads for cooperating with the extension rod to drive the extension rod to move.

[0014] Preferably, a turntable is fitted on the drive ring, and a vertical protrusion is provided in the middle of the turntable. The turntable is used by the operator to rotate, thereby driving the drive ring to rotate and helping the sampling tube to be screwed into the soil layer.

[0015] Preferably, the lower part of the intermediate shaft is provided with an insert block, the middle part of the intermediate shaft is provided with a retaining ring, and the upper part of the intermediate shaft is threaded with a control cover for limiting the position of the lower pressure plate.

[0016] Preferably, the pressing assembly includes two protective plates, a ball bearing, and a rotating ring. The two protective plates are interlocked to form a cavity for mounting the intermediate shaft. The ball bearing is disposed on annular grooves on the two protective plates. The rotating ring is mounted on the lower part of the intermediate shaft, and the lower end of the rotating ring is provided with annular grooves that match the ball bearings.

[0017] Preferably, a support rod is provided at the lower end of the lower pressure plate, an insertion hole is provided on the lower pressure plate, and insertion shafts are provided at both ends of the support rod. By controlling the insertion shafts to be inserted into different through holes, the lower pressure plate is supported and limited.

[0018] The technical solution provided in this application has the following advantages compared with the prior art:

[0019] 1. Through a support platform, adjustable side supports, and a connecting seat structure with adjustable support bases, the equipment achieves adaptive and stable support in rugged mountainous terrain. The support platform provides vertical guidance for the sampling components to prevent displacement; the side supports fix the tilt angle through the insertion rods and different through holes, and are locked by torsion springs to ensure support strength; the connecting seat and the support base can rotate and slide relative to each other, allowing the bottom surface of the support base to conform to irregular ground surfaces, and its bottom groove can insert into the soil layer to enhance friction, thus solving the problem of unstable support and easy swaying of existing equipment on complex ground.

[0020] 2. By coordinating the U-shaped pressure plate, pedal, intermediate shaft, and protective plate structure in the pressure assembly, continuous, labor-saving, and non-interfering axial pressure is applied to the sampling assembly. The operator's foot applies additional gravity by stepping on the pedal, while their hand grips the pressure plate to prevent rotation, allowing the force to be directly transmitted to the extension rod via the intermediate shaft, increasing the contact pressure between the sampling tube and the soil layer. The intermediate shaft transmits downward pressure through a lower insert block that engages with the groove in the extension rod. Simultaneously, the protective plate, ball bearings, and swivel structure isolate the intermediate shaft and pressure plate from the rotating extension rod, ensuring that the application of downward pressure and the rotating drilling of the sampling tube do not interfere with each other. This solves the problems of insufficient downward pressure relying solely on manpower or equipment weight, and the potential for interference between pressure and rotation operations.

[0021] 3. By utilizing the threaded transmission between the drive ring and the extension rod, and the limiting support of the support platform on the drive ring, the rotary drive is efficiently and effortlessly converted into the drilling motion of the sampling tube. The internal thread of the drive ring meshes with the external thread of the extension rod. Rotating the drive ring (operated via a turntable) drives the extension rod to rotate and causes the sampling tube to screw into the soil layer. Because the support platform restricts the axial displacement of the drive ring, the drive ring can continuously "push" the extension rod downward while simultaneously rotating, forming a stable drilling motion. This solves the problems of laborious operation and lack of coordination caused by the need to simultaneously apply downward pressure and rotational torque in traditional methods.

[0022] 4. The top cover, threaded extension rods, and short bolt locking structure enable flexible and reliable expansion of sampling depth. The top cover, as a standard connector, is threaded to both the sampling tube and the extension rod, and secured with short bolts to prevent loosening. When increasing the sampling depth is required, multiple extension rods are simply screwed together via threaded grooves and connectors at their ends, and locked with short bolts. This modular design solves the problems of inconvenience in carrying a single long rod and the risk of loosening due to insufficient strength at the connection, allowing the equipment to flexibly adapt to sampling needs at different depths.

[0023] 5. The adjustable insertion method of the support rod allows for convenient switching between the working and storage states of the lower pressure plate, improving operational convenience and equipment portability. During operation, both ends of the support rod are inserted into the insertion holes at the bottom of the side plates of the lower pressure plate, forming a stable triangular support to prevent the side plates from bending inwards under stress. For transfer or storage, both ends of the support rod can be installed in insertion holes at different heights on the same side plate, allowing the support rod to be stored close to the side plate. This compact structure resolves the conflict between the auxiliary support structure of the lower pressure plate and overall portability. Attached Figure Description

[0024] To more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a cross-sectional view from an isometric perspective of this application;

[0027] Figure 3 for Figure 2 Enlarged view of the local structure at point A;

[0028] Figure 4 for Figure 2 Enlarged view of the local structure at point B;

[0029] Figure 5 This is a schematic diagram of the structure of the supporting components of this application;

[0030] Figure 6 This is an exploded structural diagram of the sampling component and the pressing component of this application;

[0031] Figure 7 for Figure 6 Enlarged view of the local structure at point C;

[0032] Figure 8 for Figure 6Enlarged view of the local structure at point D.

[0033] In the diagram: 100-Support assembly; 101-Support platform; 102-Long bolt; 103-Side support frame; 104-Connecting seat; 105-Support seat; 106-Side support rod; 107-Torsion spring; 108-Insertion rod; 200-Sampling assembly; 201-Sampling tube; 202-Top cover; 203-Short bolt; 204-Drive ring; 205-Extension rod; 206-Turntable; 300-Pressing assembly; 301-Protective plate; 302-Small bolt; 303-Ball bearing; 304-Rotating ring; 305-Intermediate shaft; 306-Control cover; 307-Pressing plate; 308-Pedal; 309-Support rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] like Figures 1 to 8 As shown, a high-efficiency soil sampling mechanism for mountain geological surveys includes a support assembly 100, a sampling assembly 200, and a pressing assembly 300. The sampling assembly 200 includes a sampling tube 201, a top cover 202, and an extension rod 205. The top cover 202 serves as a connector between the sampling tube 201 and the extension rod 205, and is threadedly connected to the lower end of the extension rod 205 and the upper end of the sampling tube 201, respectively. The sampling tube 201 has a hollow internal structure, and a sealing plate is provided at its upper end to limit the sampling capacity. A protrusion is provided at the lower opening of the sampling tube 201 to assist in screwing the sampling tube 201 into and inserting it into the soil layer.

[0037] In use, the vertical movement of the sampling tube 201 and the extension rod 205 is limited and guided by the support platform 101 on the support assembly 100, preventing the sampling tube 201 from deviating when it penetrates the soil layer and preventing the extension rod 205 from swinging when it is driven to rotate. After the support platforms 101 on both sides of the support platform 101 are unfolded, they support the support platform 101 and prevent the movement of the extension rod 205 from driving the support platform 101.

[0038] The support assembly 100 includes a support platform 101 and side supports 103. The support platform 101 has a through hole in the middle. The support platform 101 is sleeved on the sampling assembly 200. Multiple side supports 103 are rotatably arranged on the support platform 101 to guide and support the vertical movement of the sampling assembly 200. The sampling tube 201 in the sampling assembly 200 takes samples, while the extension rod 205 is responsible for pushing the sampling tube 201 downward to penetrate deeper into the soil layer.

[0039] The pressing component 300 includes an intermediate shaft 305, a pressing plate 307, and a pedal 308. The lower end of the intermediate shaft 305 is inserted into the upper groove of the extension rod 205. The pressing plate 307 has a U-shaped structure and is mounted upside down on the intermediate shaft 305. The pedal 308 is slidably disposed at the open end of the intermediate shaft 305. The pedal 308 is used for personnel to step on it, applying additional gravity to assist the sampling component 200 in inserting into the soil layer.

[0040] When operating the device, the operator places one foot on the pedal 308 to apply a downward force, while using one hand to control the lower pressure plate 307 to prevent it from rotating with the extension rod 205. This allows the lower pressure plate 307 to apply a downward thrust to the extension rod 205, thereby improving the contact between the lower end of the sampling tube 201 and the soil layer. This facilitates the subsequent rotation of the extension rod 205 and the sampling tube 201, as the protrusion at the lower end of the sampling tube 201 scrapes the soil layer, making it easier for the sampling tube 201 to penetrate deeper into the soil.

[0041] The pedal 308, lower pressure plate 307, and support rod 309 are all made of high-strength alloy materials, preferably manganese steel or aluminum alloy. These materials have a yield strength ≥350MPa and can withstand instantaneous concentrated pressure and continuous static pressure. Combined with the force-bearing area of ​​the pedal 308, which is designed to fit the size of an adult's foot, and the lateral support of the support rod 309, the lower pressure plate 307 can withstand a maximum pressure of no less than 300kg. During operation, the operator needs to stand or semi-squat to step on the pedal. A typical adult weighing 50-100kg, with pressure applied from both sides to the lower pressure plate 307, would exert 100-200kg of pressure. With a certain safety margin, this equipment meets operational requirements while avoiding excessive pressure that could lead to component fatigue damage.

[0042] like Figure 5As shown, the support assembly 100 includes a side support rod 106, which is rotatably mounted on the support platform 101. An insertion rod 108 is slidably mounted on the end of the side support rod 106 away from the support platform 101. Multiple through holes are provided in the middle of the side support frame 103. The end of the insertion rod 108 facing the side support frame 103 is inserted into one of the through holes to fix the tilt angle between the side support frame 103 and the support platform 101. The tilt angle of the side support frame 103 is controlled by the position of the insertion rod 108 in the through holes. The range of the tilt angle is limited by the length of the sampling tube 201, i.e., it must be greater than the length of the sampling tube 201 to ensure stable support and limitation of the sampling tube 201 on the support platform 101 after the side support frame 103 tilts. Furthermore, the extension rod 205 installed at the upper end of the sampling tube 201 contacts the support platform 101, ensuring stable control of the extension rod 205 downward conveying and pushing the sampling tube 201 into the soil layer.

[0043] Specifically, a torsion spring 107 is fitted on the insertion rod 108. The two ends of the torsion spring 107 are fixedly connected to the outer end of the insertion rod 108 and the outer end of the side support rod 106, respectively. Thus, when it is necessary to change the tilt angle between the side support 103 and the support platform 101, the operator can manually pull out the insertion rod 108 on the side support rod 106 and compress the torsion spring 107 on the insertion rod 108, so that the insertion rod 108 moves away from the side support 103, thereby causing the insertion rod 108 to disengage from the original through hole. After the insertion rods 108 on both sides of the side support 103 are disengaged, the tilt angle between the insertion rod and the support platform 101 can be changed. After reaching a suitable angle, the insertion rod 108 is controlled to be inserted into the new through hole. The elastic force of the torsion spring 107 on the insertion rod 108 is used to restrict and prevent the insertion rod 108 from disengaging from the through hole of the side support 103.

[0044] like Figure 5 As shown, a connecting seat 104 is rotatably mounted on the lower end of the side support 103 to adapt to the environment and change the support position. Specifically, when encountering irregular ground, the connecting seat 104 can be rotated at the lower end of the side support 103 by controlling the support seat 105, thereby pushing the support seat 105 into close contact with the ground through the angled connecting seat 104. A sliding groove is provided at the lower end of the connecting seat 104, on which the support seat 105 slides. Multiple grooves are provided on the lower end surface of the support seat 105 to facilitate insertion of the lower end of the support seat 105 into the surface soil, increasing friction, preventing slippage on the ground, and ensuring stability.

[0045] Specifically, the support base 105 is equipped with a long slider. During installation, the long slider of the support base 105 is slid into the connecting base 104 from the side. Then, through the cooperation of the slider and the slide groove, the support base 105 is installed on the connecting base 104. The limiting effect of the slide groove and the slider prevents the connecting base 104 from separating from the support base 105 in the tilt direction of the side support 103 during operation.

[0046] After the support base 105 has been used for a long time, the staff can directly control the support base 105 to slide out along the direction of the sliding groove of the connecting base 104, easily disassemble the support base 105, replace it with a new support base 105, or perform cleaning and maintenance on the support base 105 separately.

[0047] like Figure 1 As shown, the side support frame 103 is equipped with multiple crossbars. These crossbars can be used to push the connecting seat 104 downwards to insert it into the soil layer, enhancing friction and support. After the side support frame 103 is deployed, forming a support and guiding state for the sampling component 200, workers can step on the crossbars of the side support frame 103 to apply a pushing force along the inclined direction of the side support frame 103. This causes the lower end of the side support frame 103 to push the connecting seat 104, which in turn pushes the support seat 105, making the support seat 105 in close contact with the support point on the ground surface. Through the groove structure at the lower end of the support seat 105, it is inserted into the soil layer.

[0048] like Figure 3 and Figure 8 As shown, the upper part of the top cover 202 is a rectangular structure, and the main body of the extension rod 205 is a rectangular structure. The two rectangular structures are the same size. The lower end of the extension rod 205 is provided with a connector. The connector is provided with a threaded hole, and a short bolt 203 is threaded on the threaded hole. The short bolt 203 passes through the upper part of the top cover 202 and the connector of the extension rod 205, and is used to fix the connection between the extension rod 205 and the top cover 202.

[0049] Specifically, the standard design length of a single extension rod 205 is 1m, suitable for portability and labor-saving operation in mountainous areas. The sampling depth can be increased by adding more extension rods. Considering portability, the equipment in this application is only suitable for shallow to medium-deep soil surveys; ultra-deep layers (greater than 10m) require large drilling equipment. During field sampling, if the soil layer is soft, such as in soil pollution depth migration surveys, soil mechanical property sampling at landslide / debris flow hazard points, or soil analysis in shallow groundwater recharge areas, the maximum sampling depth of 10m can be effectively achieved by splicing 10 extension rods, combined with the full pressure of the pressure plate 307. If the soil layer is hard, the sampling depth is limited by the force applied to the pressure plate 307 by the operator; its downward pressure on the sampling tube 201 is relatively weak, resulting in a maximum sampling depth of approximately 5m.

[0050] like Figure 6 and Figure 8 As shown, the rectangular structure on the top of the top cover 202 and the rectangular structure of the main body of the extension rod 205 have the same shape. They are both formed by cutting off the parts of the two sides of a circular structure. This cut-out part is used for the installation of the short bolt 203. So after the short bolt 203 is installed, when the extension rod 205 moves vertically, the short bolt 203 will not interfere with the drive ring 204 and the support platform 101.

[0051] The rectangular structure of the extension rod 205 has a threaded, uncut arc-shaped end that matches the thread inside the drive ring 204. This allows the sampling tube 201 to contact the soil layer. The top cover 202 and short bolts 203 connect the extension rod 205 to the soil layer, forming an integrated structure. The gravity applied by the upper pressing component 300 ensures that the sampling tube 201 is in close contact with the soil layer. By controlling the rotation of the drive ring 204, the thread inside the drive ring 204 drives the thread of the extension rod 205, causing the extension rod 205 to rotate. This, in turn, drives the sampling tube 201 to rotate. The protrusion at the lower end of the sampling tube 201 moves the soil layer, forming a downward drilling effect, which helps the sampling tube 201 penetrate deeper into the soil layer to achieve sampling.

[0052] As the sampling tube 201 penetrates the soil layer, it drives the extension rod 205 downward through the top cover 202. The thrust applied by the pressing component 300 keeps the sampling tube 201 in contact with the soil layer. The rotation of the extension rod 205 drives the drive ring 204 through its thread. Since the rotation direction of the drive ring 204 is the same as that of the extension rod 205, the drive ring 204 will follow the extension rod 205 downward. However, the drive ring 204 is supported by the support platform 101, so that the drive ring 204 will not move downward, but will rotate along the thread of the extension rod 205 and remain horizontal.

[0053] When the drive ring 204 rotates in the same direction as the thread of the extension rod 205, the extension rod 205 is nearly fixed due to strong friction, causing the drive ring 204 to move downwards. However, due to the support of the support platform 101, the drive ring 204 does not move downwards. Instead, the drive ring 204 drives the extension rod 205 to rotate through the engagement between the threads of the drive ring 204 and the extension rod 205. That is, the drive ring 204 and the extension rod 205 rotate synchronously. As the extension rod 205 moves downwards a certain distance, the drive ring 204 simultaneously screws upwards along the thread of the extension rod 205, so that the downward displacement of the extension rod 205 is the same as the distance the drive ring 204 moves along the thread of the extension rod 205. This keeps the drive ring 204 on the support platform 101, allowing it to continuously drive the extension rod 205.

[0054] like Figure 3 and Figure 8As shown, the lower outer end face of the top cover 202 is provided with threads for screwing into the threaded groove at the upper end of the sampling tube 201. The upper inner side of the top cover 202 is provided with threads for screwing into the lower end connector of the extension rod 205. The upper end of the extension rod 205 is provided with a threaded groove, which matches the thread on the lower end connector of the extension rod 205 for connecting multiple extension rods 205.

[0055] In use, first align the upper groove of the top cover 202 with the lower connector of the extension rod 205, and screw it into the connector of the lower end of the extension rod 205. Secure the connection through the threaded engagement. Then, screw the lower end of the top cover 202 into the upper groove of the sampling tube 201, securing it through the threaded engagement. This forms a single unit consisting of the sampling tube 201, top cover 202, and extension rod 205, with all threads in the same direction, preventing loosening during rotation. When sampling deep soil layers is required, multiple extension rods 205 can be connected at their upper and lower ends and secured with short bolts 203, extending the extension rods 205 to accommodate different sampling needs.

[0056] like Figure 3 As shown, a drive ring 204 is inserted into the support platform 101. The drive ring 204 has a multi-layered stepped structure. The lower part of the drive ring 204 is a smooth surface for connecting with the support platform 101. A vertical groove is provided in the middle of the drive ring 204 for connecting external driving force. A retaining ring is provided in the upper part of the drive ring 204 to limit the movement of parts fitted on the drive ring 204, i.e., to limit the turntable 206, preventing it from detaching from the drive ring 204 after installation. The drive ring 204 has internal threads for engaging with the extension rod 205 to drive the extension rod 205 to move.

[0057] like Figure 3 and Figure 8 As shown, the multi-layered stepped structure of the drive ring 204 allows the lower layer to be inserted into the through hole in the middle of the support platform 101 through the stepped structure, and then the support platform 101 supports the drive ring 204 in the opposite direction, preventing the drive ring 204 from moving downward, so that the operator can continuously control the rotation of the drive ring 204.

[0058] like Figure 1 and Figure 2 As shown, a turntable 206 is fitted on the drive ring 204. A vertical protrusion is provided in the middle of the turntable 206. The protrusion slides on the vertical slider in the middle of the drive ring 204. The turntable 206 is used by the staff to rotate, thereby driving the drive ring 204 to rotate and helping the sampling tube 201 to screw into the soil layer.

[0059] like Figure 1 and Figure 3As shown, the operator manipulates the turntable 206. During installation, the turntable 206 is first placed on the middle of the drive ring 204, and then the drive ring 204 and the turntable 206 are screwed into the extension rod 205 from the upper end of the extension rod 205 and come into contact with the support platform 101.

[0060] like Figure 4 As shown, the lower part of the intermediate shaft 305 is provided with an insert block, the middle part of the intermediate shaft 305 is provided with a retaining ring, and the upper part of the intermediate shaft 305 is threaded with a control cover 306 for limiting the position of the lower pressure plate 307. During installation, the control cover 306 is selected, the lower pressure plate 307 is sleeved on the upper part of the intermediate shaft 305, and then the control cover 306 is screwed in to block the upper end of the lower pressure plate 307. Thus, when a new extension rod 205 needs to be added during subsequent sampling, the lower pressure plate 307 can be directly controlled to rise. The control cover 306 drives the intermediate shaft 305 and protective plate 301 and other parts to directly detach from the upper end of the original extension rod 205. After installing the new extension rod 205, the lower pressure plate 307 is controlled to approach the upper end of the new extension rod 205, so that the insert block at the lower end of the intermediate shaft 305 is inserted into the groove at the upper end of the new extension rod 205, thereby realizing the installation of the lower pressure assembly 300.

[0061] Specifically, the insert block at the lower part of the intermediate shaft 305 is inserted into the groove at the upper part of the extension rod 205, thereby installing the pressing component 300 at the upper end of the extension rod 205. During use, the pressing component 300 can apply a downward thrust to the extension rod 205 and the sampling tube 201, helping the sampling tube 201 to screw into the soil layer for easy sampling.

[0062] like Figure 4 As shown, the pressing assembly 300 includes two protective plates 301, ball bearings 303, and a rotating ring 304. The two protective plates 301 interlock to form a cavity for mounting an intermediate shaft 305. The ball bearings 303 are disposed on annular grooves on the two protective plates 301. The rotating ring 304 is mounted on the lower part of the intermediate shaft 305, and its lower end has an annular groove that matches the ball bearings 303. The retaining ring of the intermediate shaft 305 fits against the upper opening of the two protective plates 301, as shown. Figure 4 As shown, the retaining ring of the intermediate shaft 305 blocks the upper openings of the two protective plates 301 and obstructs the rotating ring 304 below, thus forming an extension rod 205 supporting the two protective plates 301. The protective plates 301 support the rotating ring 304 through the ball bearings 303 on the internal annular groove. The rotating ring 304 then supports the intermediate shaft 305 and the lower pressure plate 307 sleeved on its upper part through the retaining ring in the middle of the intermediate shaft 305. The insertion of the insert block at the lower end of the intermediate shaft 305 into the groove at the upper end of the extension rod 205 forms a limit, stabilizing the protective plates 301 and other parts at the upper end of the extension rod 205.

[0063] Specifically, each of the two protective plates 301 is equipped with a mounting plate. Small bolts 302 are inserted into the through holes of the mounting plates of the two protective plates 301, and bolts are screwed in to tighten them, thereby realizing the installation of the two protective plates 301.

[0064] like Figure 4 and Figure 7 As shown, a support rod 309 is provided at the lower end of the lower pressure plate 307. The lower pressure plate 307 is provided with an insertion hole. The two ends of the support rod 309 are provided with insertion shafts. By controlling the insertion shafts to be inserted into different through holes, the lower pressure plate 307 is supported and limited to prevent the open end of the lower pressure plate 307 from bending inward. The two support rods 309 limit the lower pressure plate 307 on both sides of the sampling tube 201 to prevent the lower pressure plate 307 from swinging laterally.

[0065] like Figure 1 As shown, each side of the lower pressure plate 307 has two insertion holes. The insertion holes at the open end are used for the installation of the support rods 309 on both sides during operation. The support rods 309 on both sides of the lower pressure plate 307 support the two side plates of the lower pressure plate 307, preventing them from bending inward due to force and affecting the thrust on the extension rod 205. When the equipment is moved, the support rods 309 can be installed on the same side of the lower pressure plate 307, that is, one end of the support rod 309 is inserted into the insertion hole at the open end of the lower pressure plate 307, and the other end is inserted into the insertion hole in the middle of the same side plate of the lower pressure plate 307, thus forming a storage for the support rods 309.

[0066] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-efficiency soil sampling mechanism for mountainous geological survey, characterized in that, Including support assembly (100), sampling assembly (200) and down pressure assembly (300), the sampling assembly (200) includes sampling tube (201), top cover (202) and extension rod (205), the top cover (202) is connected as the connecting piece of sampling tube (201) and extension rod (205), respectively with the lower end of extension rod (205) and the upper end of sampling tube (201) is screwed connection; The support assembly (100) includes support table (101) and side support frame (103), the support table (101) is set on the sampling assembly (200), a plurality of side support frames (103) are rotationally arranged on the support table (101), for guiding and supporting the vertical movement of the sampling assembly (200); The down pressure assembly (300) includes intermediate shaft (305), down pressure plate (307) and pedal (308), the lower end of the intermediate shaft (305) is inserted into the upper end groove of the extension rod (205), the down pressure plate (307) is a U-shaped structure, the down pressure plate (307) is reversely set on the intermediate shaft (305), the opening end of the intermediate shaft (305) is slidably provided with the pedal (308), and the pedal (308) is used for people to step on, to apply additional gravity to help the sampling assembly (200) to insert into the soil layer.

2. The efficient soil sampling mechanism for mountainous geological survey according to claim 1, wherein, The support assembly (100) includes a side support rod (106), the side support rod (106) is rotationally arranged on the support table (101), a plug rod (108) is slidably arranged on the side support rod (106), a plurality of through holes are arranged on the side support frame (103), the plug rod (108) is inserted into the through hole, and the inclination angle of the side support frame (103) and the support table (101) is fixed.

3. The efficient soil sampling mechanism for mountainous geological surveying according to claim 1, characterized in that, The lower end of the side support frame (103) is rotationally provided with a connecting seat (104), for adapting to the environment and changing the support position, the lower end of the connecting seat (104) is provided with a sliding groove, the sliding groove is slidably provided with a support seat (105), and the lower end surface of the support seat (105) is provided with a plurality of grooves for inserting into the surface soil layer to ensure stability.

4. The efficient soil sampling mechanism for mountainous geological surveying according to claim 1, wherein, The upper part of the top cover (202) is a rectangular structure, the main body of the extension rod (205) is a rectangular structure, the two rectangular structures have the same specification, the lower end of the extension rod (205) is provided with a connecting head, the connecting head is provided with a threaded hole, a short bolt (203) is threadedly arranged on the threaded hole, the short bolt (203) penetrates the upper part of the top cover (202) and the connecting head of the extension rod (205), and is used for fixing the connection of the extension rod (205) and the top cover (202).

5. The efficient soil sampling mechanism for mountainous geological surveying according to claim 1, wherein, The outer end surface of the lower part of the top cover (202) is provided with a thread, which is screwed into the threaded groove of the upper end of the sampling tube (201), the inner side of the upper part of the top cover (202) is provided with a thread, which is screwed into the connecting head of the lower end of the extension rod (205), and the upper end of the extension rod (205) is provided with a threaded groove, which is matched with the thread on the connecting head of the lower end of the extension rod (205), for connecting a plurality of extension rods (205).

6. The efficient soil sampling mechanism for mountainous geological surveying according to claim 1, wherein, The support table (101) is inserted with a driving ring (204), the driving ring (204) is a multi-layer step structure, the lower part of the driving ring (204) is a smooth surface, which is used for connecting with the support table (101), the middle part of the driving ring (204) is provided with a vertical sliding groove, which is used for connecting with an external driving force, the upper part of the driving ring (204) is provided with a blocking ring, which is used for limiting the movement of the part sleeved on the driving ring (204), the inside of the driving ring (204) is provided with a thread, which is used for cooperating with an extension rod (205) to drive the extension rod (205) to move.

7. The efficient soil sampling mechanism for mountainous geological surveying according to claim 6, characterized in that, The driving ring (204) is sleeved with a rotating disc (206), the middle part of the rotating disc (206) is provided with a vertical lug, the rotating disc (206) is used for rotating by a worker to drive the driving ring (204) to rotate, and the rotating disc (206) is used for assisting the sampling pipe (201) to rotate into the soil layer.

8. The efficient soil sampling mechanism for mountainous geological surveying according to claim 1, wherein, The lower part of the intermediate shaft (305) is provided with an insertion block, the middle part of the intermediate shaft (305) is provided with a blocking ring, and the upper part of the intermediate shaft (305) is provided with a control cover (306) in a threaded manner, which is used for limiting the position of a lower pressing plate (307).

9. The efficient soil sampling mechanism for mountainous geological surveying according to claim 8, characterized in that, The lower pressing assembly (300) comprises two protective plates (301), a ball (303) and a rotating ring (304), the two protective plates (301) are buckled with each other to form a cavity for sleeving the intermediate shaft (305), the ball (303) is arranged on an annular groove on the two protective plates (301), and the rotating ring (304) is sleeved on the lower part of the intermediate shaft (305), and the lower end of the rotating ring (304) is provided with an annular groove matched with the ball (303).

10. The efficient soil sampling mechanism for mountainous geological surveying according to claim 1, wherein, The lower end of the lower pressing plate (307) is provided with a supporting rod (309), the lower pressing plate (307) is provided with an insertion hole, and the both ends of the supporting rod (309) are provided with insertion shafts, the insertion shafts are inserted into different through holes to support and limit the lower pressing plate (307).

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