Foldable soft soil column cutting device for geological exploration

Abstract

The invention discloses a foldable soft soil column cutting device for geological exploration, which comprises a folding frame, the folding frame comprises a main frame and two groups of side frames, the two groups of side frames are symmetrically and rotatably connected to the two sides of the main frame, and a positioning assembly is arranged between the main frame and the side frames; the positioning table is fixed on the main frame; the sample placing assembly is connected to the positioning table in a sliding manner; the cutting device comprises a linear rail, the linear rail is vertically connected to the main frame in a sliding mode, an installation block is connected to the linear rail in a sliding mode, a cutter is fixed to the installation block through a fixing piece, a linear moving assembly is installed on the linear rail, a lifting mechanism is installed on the top of the main frame, and the bottom of the lifting mechanism is fixed to the top face of the linear rail; wherein the side frame is detachably connected with a supporting assembly. Due to the design of the folding frame, the device can be folded in a non-working state, the size is obviously reduced, and carrying and transportation are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, and particularly to a foldable soft soil column cutting device for geological exploration. Background Art

[0002] In the field of geological exploration, soil column sampling is a key link for obtaining the physical, chemical and structural characteristics of underground soil layers. Especially for the exploration of soft soil layers, the integrity of the undisturbed samples directly affects the accuracy of subsequent experimental analysis. Most traditional soil column cutting devices adopt a structure of hard metal or alloy blades combined with a fixed bracket, and there are the following technical problems:

[0003] Insufficient portability: In order to improve the cutting stability, most conventional devices adopt an integral rigid frame, resulting in a large volume (the length usually exceeds 1.2 m) and heavy weight (generally exceeding 8 kg) of the equipment, making it difficult to meet the mobility requirements under complex field terrains. Especially, it is difficult to carry in mountainous areas, jungles and other regions.

[0004] Soft soil disturbance problem: Soft soil columns (such as silt and cohesive soil) have the characteristics of high water content and low shear strength. When traditional rigid blades cut in, lateral extrusion is easy to occur, resulting in plastic deformation or crack development of the soil column, and destroying its natural bedding structure and pore characteristics.

[0005] Based on the above technical problems, the present invention provides a foldable soft soil column cutting device for geological exploration. Summary of the Invention

[0006] The purpose of the present invention is to provide a foldable soft soil column cutting device for geological exploration to solve the problems existing in the prior art.

[0007] To achieve the above purpose, the present invention provides the following solutions: The present invention provides a foldable soft soil column cutting device for geological exploration, including:

[0008] A folding frame, the folding frame includes a main frame and side frames. There are two groups of the side frames, and the two groups of side frames are symmetrically and rotatably connected to both sides of the main frame. A positioning component is arranged between the main frame and the side frames;

[0009] A positioning table, the positioning table is fixed on the main frame;

[0010] A sample placement component, the sample placement component is slidably connected to the positioning table. After the side frames are unfolded, they are flush with the positioning table, and the sample placement component is located on the tops of the two groups of side frames;

[0011] Cutting device, the cutting device includes a linear track, the linear track is vertically slidably connected to the main frame, an installation block is slidably connected to the linear track, a cutting knife is fixed on the installation block through a fixing member, a linear movement component is installed on the linear track, the installation block is installed on the linear movement component, a lifting mechanism is installed on the top of the main frame, and the bottom of the lifting mechanism is fixed to the top surface of the linear track;

[0012] Among them, a support component is detachably connected to the side frame.

[0013] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, four groups of positioning components are provided, and the four groups of positioning components are symmetrically arranged in pairs. The positioning component includes a support rod and an adjusting threaded sleeve. There are two groups of support rods, and the two groups of support rods are respectively rotatably connected to the side of the main frame and the side of the side frame through mounting seats. The adjusting threaded sleeve is arranged between the two groups of support rods, and the support rod is threadedly connected to the adjusting threaded sleeve.

[0014] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, the fixing member includes a positioning bolt. A threaded hole is opened on the installation block. The positioning bolt passes through the cutting knife and is threadedly connected to the threaded hole. The positioning bolt abuts against the cutting knife.

[0015] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, the linear movement component includes a horizontal screw rod. The horizontal screw rod is rotatably connected to the linear track. The horizontal screw rod passes through the installation block and is threadedly connected to the installation block. One end of the linear track is fixedly connected to an installation frame, and a driving motor is fixedly connected to the installation frame. The driving motor is axially connected to the horizontal screw rod.

[0016] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, the lifting mechanism includes two force application frames respectively arranged inside and outside the main frame. A plurality of pull rods are arranged between the two force application frames. Fixing nuts are respectively threadedly connected to the pull rods at both ends of the pull rods. The fixing nuts abut against the sides of the two force application frames away from each other. A support spring is fixedly connected between the force application frame inside the main frame and the main frame. The support spring is sleeved on the pull rod. A hydraulic cylinder is fixedly connected to the outside of the main frame. The hydraulic cylinder abuts against the force application frame outside the main frame. The hydraulic cylinder is vertically perpendicular to the top surface of the main frame; A pressure rod is installed on the force application frame inside the main frame. The pressure rod is vertically fixed to the top end of the linear track. The number of the pressure rods is not less than two groups.

[0017] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, the sample placement assembly includes a placement groove which is horizontally slidably connected to the top surface of the positioning table. A plurality of partition plates are fixedly connected in the placement groove, and the plurality of partition plates divide the placement groove into a plurality of placement intervals. The bottom surface of the placement interval is set as an arc surface.

[0018] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, a propulsion assembly is installed on the positioning table. The propulsion assembly includes a gear which is rotatably connected to the top surface of the positioning table. A tooth groove is formed on the bottom surface of the placement groove, and the gear meshes with the tooth groove. A connecting shaft is rotatably connected to the side surface of the positioning table, and the connecting shaft is axially connected to the gear. A rocker is perpendicularly and fixedly connected to the connecting shaft, and the rocker is of an L-shaped structure.

[0019] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, the support assembly includes a support screw which is vertically threadedly connected to the side frame, and a support seat is fixedly connected to the bottom of the support screw.

[0020] According to the collapsible soft soil column cutting device for geological exploration provided by the present invention, magnets are respectively installed on the side frame and the main frame, and the side magnets on the side frame are arranged corresponding to the magnets on the main frame.

[0021] The present invention discloses the following technical effects:

[0022] 1) The design of the folding frame of the present invention enables the device to be folded in the non-working state, significantly reducing the volume, facilitating carrying and transportation. This is particularly important for geological exploration work that requires frequent mobile operations, which can reduce transportation costs and improve work efficiency. The folded device is easier to store, occupies less space, and is suitable for storage in limited spaces.

[0023] 2) The positioning assembly provided between the main frame and the side frame of the present invention can provide stable support after the side frame is unfolded and ensure that the side frame is flush with the positioning table, thereby ensuring the stability and cutting accuracy of the sample placement assembly during the cutting process.

[0024] 3) The cutting device adopts the design of a linear track and a mounting block, enabling the cutter to move precisely up and down along the linear track, thereby achieving vertical cutting. The installation of the linear movement assembly enables the cutter to be finely adjusted in the horizontal direction, further improving the cutting accuracy and flexibility. The setting of the lifting mechanism enables the linear track to move up and down as a whole, adapting to cutting requirements at different heights, and also helps to adjust the cutting force and speed. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of the foldable soft soil column cutting device for geological exploration of the present invention;

[0027] Figure 2 is Figure 1 an enlarged view of part A in;

[0028] Figure 3 is Figure 1 an enlarged view of part B in;

[0029] Figure 4 It is a schematic structural diagram of the placement groove of the present invention.

[0030] Among them, 1, main frame; 2, side frame; 3, positioning table; 4, linear track; 5, mounting block; 6, support rod; 7, adjusting threaded sleeve; 8, horizontal screw rod; 9, mounting frame; 10, driving motor; 11, force - applying frame; 12, pull rod; 13, support spring; 14, hydraulic cylinder; 15, pressing rod; 16, placement groove; 17, partition board; 18, gear; 19, rocker; 20, magnet. Specific embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] To make the above - mentioned objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0033] Refer to Figures 1-4The present invention provides a foldable soft soil column cutting device for geological exploration, including a technical solution of a folding frame, a positioning table 3, a sample placement assembly, a cutting device and a support assembly. The folding frame includes a main frame 1 and a side frame 2 that is symmetrically rotatably connected, and a positioning assembly is arranged between the main frame 1 and the side frame 2. The positioning table 3 is fixed on the main frame 1, and the sample placement assembly is slidably connected to the surface of the positioning table 3. After the side frame 2 is unfolded, it remains horizontal with the positioning table 3. The cutting device includes a linear track 4, a mounting block 5 and a cutter, and the linear track 4 is connected to the top of the main frame 1 through a lifting mechanism. The support assembly is detachably connected to the side frame 2.

[0034] Among them, the folding frame refers to the main support structure that can be unfolded and folded through a hinge mechanism. Specifically, it can be realized by using aluminum alloy pipes with a rotating shaft connection. The symmetrical arrangement of the main frame 1 and the side frame 2 ensures the balance of the center of gravity of the equipment after unfolding. The positioning table 3 refers to a platform for carrying soil column samples. Specifically, it can be realized by using a steel plate structure with a guide groove on the surface. The guide groove cooperates with the sliding part of the sample placement assembly to realize horizontal displacement control. The sample placement assembly refers to a container for fixing the soil column. Specifically, it can be realized by using a plastic trough with an arc bottom surface. The arc bottom surface design reduces the contact stress at the bottom of the soil column. The cutting device refers to an actuator for realizing soil column sectioning. Specifically, it can be realized by using a ball screw structure driven by a servo motor. The vertical sliding of the linear track 4 cooperates with the horizontal movement to realize a three-dimensional cutting path. The support assembly refers to an auxiliary component that enhances the stability of the equipment. Specifically, it can be realized by using a threaded adjustment foot with an anti-slip pad. The height of the foot is adjusted by screwing the threaded rod to adapt to different ground conditions.

[0035] Specifically, when the folding frame is in the folded state, the side frame 2 is close to both sides of the main frame 1, which significantly reduces the size of the equipment for easy transportation. When starting the operation, the operator releases the locking state of the positioning assembly, rotates the two side frames 2 to a horizontal position and then re-fixes them. At this time, the top plane of the side frame 2 and the positioning table 3 form a continuous working surface. After the sample placement assembly slides along the surface of the positioning table 3 to the cutting area, the linear track 4 of the cutting device adjusts the vertical height through the lifting mechanism so that the cutter is aligned with the preset cutting position of the soil column. Start the linear moving assembly to drive the cutter to move horizontally along the linear track 4 to complete the continuous cutting of the soil column. When encountering soft ground, install the support assembly at the bottom of the side frame 2, and adjust the length of the screw to keep the equipment horizontal and stable.

[0036] With such a setup, traditional cutting devices use a metal frame formed by welding and cannot adjust the overall dimensions. However, in this solution, the folding frame structure enables the equipment volume compression rate to exceed 60%. In the prior art, the blade can only move in a single direction, and the soil column bears bidirectional shear stress during cutting. In this solution, the vertical lifting of the linear track 4 is combined with the horizontal movement to form a stepped cutting path, effectively decomposing the cutting resistance. Conventional equipment needs to carry additional support pads to deal with uneven ground. In this solution, the support component is integrated on the side frame 2 of the folding frame, and a stable support surface can be formed by quickly installing it during use.

[0037] Through the above technical solutions, the present invention realizes the rapid folding and transportation of exploration equipment, solves the problem of damage to the bedding structure during the cutting process of soft soil columns, and meets the operation requirements of complex terrains. The composite movement trajectory of the cutting device reduces the cutting resistance of the blade and ensures the integrity of the natural structure of the soil sample. The detachable support component enhances the stability of the equipment on soft ground and avoids the deviation of the cutting edge caused by the inclination of the equipment during cutting.

[0038] The present invention further proposes that four groups of positioning components are provided, and the four groups of positioning components are symmetrically arranged in pairs. The positioning component includes a support rod 6 and an adjusting threaded sleeve 7. Two groups of support rods 6 are provided, and the two groups of support rods 6 are respectively rotatably connected to the side of the main frame 1 and the side of the side frame 2 through mounting seats. The adjusting threaded sleeve 7 is arranged between the two groups of support rods 6, and the support rod 6 is threadedly connected to the adjusting threaded sleeve 7.

[0039] Among them, the support rod 6 refers to a rod-shaped component used to connect the main frame 1 and the side frame 2, which can be specifically realized by a metal rod. Its two ends are rotatably connected through mounting seats, enabling the side frame 2 to rotate and fold around the main frame 1. The adjusting threaded sleeve 7 refers to a tubular connecting piece with internal threads, which can be specifically realized by a stainless steel sleeve. By rotating the adjusting threaded sleeve 7, the relative length of the two groups of support rods 6 can be changed, thereby adjusting the unfolding angle of the side frame 2 and locking the position. The mounting seat refers to a connecting structure for fixing the end of the support rod 6, which can be specifically realized by a fixed seat with bearings to ensure that the support rod 6 can rotate freely around the axis.

[0040] Specifically, when the side frame 2 needs to be unfolded, the two groups of support rods 6 are extended outward by rotating the adjusting threaded sleeve 7 until the side frame 2 is completely unfolded and flush with the positioning table 3. At this time, the support rod 6 is kept stable by the threaded locking action of the adjusting threaded sleeve 7. When folding is required, the adjusting threaded sleeve 7 is rotated in the reverse direction to shorten the length of the support rod 6, causing the side frame 2 to fold inward. The four groups of positioning components are symmetrically distributed to evenly support the two side frames 2 on both sides, avoiding the inclination of the device caused by uneven force on one side.

[0041] In this arrangement, conventional positioning structures mostly use fixing bolts or welded limit blocks to fix the frame, which cannot flexibly adjust the folding angle and has the risk of stress concentration. This solution uses the support rod 6 and the adjusting threaded sleeve 7 to ensure the rigid support of the side frame 2 after it is unfolded, and can also achieve precise control of the folding angle through thread adjustment, while dispersing the stress points to reduce local wear.

[0042] Through the above technical scheme, the present invention can effectively improve the stability of the unfolded state of the folding frame, avoid the deviation of the blade due to the shaking of the side frame 2 during the cutting process, thereby reducing the risk of structural damage to the soft soil column due to vibration, and ensure that the flatness of the cutting surface meets the requirements of geological analysis.

[0043] The present invention further proposes that the fixing member includes a positioning bolt, a threaded hole is provided on the mounting block 5, the positioning bolt passes through the cutter and is threadedly connected to the threaded hole, and the positioning bolt abuts against the cutter.

[0044] The positioning bolt refers to a fastener used to fix the cutter, which can be implemented by a metal rod with an external thread, and its head can be provided with a hexagonal structure for easy screwing. The threaded hole refers to an internal threaded hole provided on the mounting block 5, which can be formed by drilling and then tapping, and is used to cooperate with the external thread of the positioning bolt. The cutter abutment refers to the contact pressure formed between the end face of the positioning bolt and the surface of the cutter, and can be implemented by tightening the bolt so that its end applies an axial clamping force to the cutter.

[0045] Specifically, the cutter is detachably connected to the mounting block 5 via a positioning bolt. When the cutter needs to be installed, the cutter is placed on the surface of the mounting block 5, and the positioning bolt passes through the preset through hole of the cutter and is screwed into the threaded hole. As the bolt is screwed into the depth, the head of the bolt and the surface of the cutter generate abutment force, and the cutter is finally stably pressed against the mounting block 5. When the angle of the cutter needs to be replaced or adjusted, the bolt can be rotated in the opposite direction to release the fixed state. The friction generated by the threaded connection can effectively prevent the cutter from displacement or vibration during the cutting process.

[0046] In this way, the traditional cutter fixing method mostly adopts welding or an integral cutter holder structure, which cannot be adjusted and is difficult to maintain. This solution uses a threaded connection structure to achieve quick disassembly and assembly of the cutter, which can not only meet the replacement needs of blades of different specifications, but also maintain a stable clamping force during the cutting operation, avoiding the problem of cutting surface deviation caused by loose cutter.

[0047] Through the above technical solution, the present invention solves the problem of uneven cutting surface of soft soil column caused by unstable installation of the cutter. The cooperation of the positioning bolt and the threaded hole makes the cutter force uniform, reducing the risk of damage to the original structure of the soil column caused by cutting vibration. At the same time, the detachable design simplifies the cleaning and maintenance process of the cutter and prolongs the service life of key components.

[0048] The present invention further proposes that a linear motion assembly includes a horizontal screw rod 8, which is rotatably connected to a linear track 4. The horizontal screw rod 8 passes through a mounting block 5 and is threadedly connected to the mounting block 5. One end of the linear track 4 is fixedly connected to a mounting frame 9, and a drive motor 10 is fixedly connected to the mounting frame 9. The drive motor 10 and the horizontal screw rod 8 are axially connected.

[0049] The horizontal screw 8 refers to a transmission component for realizing horizontal movement of the cutting device, which can be realized by a metal rod with precision threads, and the screw rotates to drive the mounting block 5 to translate along the track. The mounting block 5 refers to a mobile base for carrying the cutter, which can be formed by aluminum alloy casting, and a threaded hole structure matching the screw is arranged inside. The drive motor 10 refers to a power output unit, which can be realized by a stepper motor or a servo motor, and torque transmission is realized through a coupling and the end of the screw.

[0050] Specifically, during the cross-section cutting process, the drive motor 10 is started to drive the horizontal screw 8 to rotate. Since the mounting block 5 is fixed to the screw by a threaded connection, the rotational movement of the screw is converted into the horizontal linear movement of the mounting block 5 along the linear track 4. By controlling the rotation direction and speed of the motor, the cutting trajectory of the cutter on the surface of the soil column can be accurately adjusted. The mounting frame 9 serves as the bearing structure of the motor, and its rigid connection method ensures the stability of power transmission. This mechanical transmission system avoids the vibration interference caused by the traditional manual pushing method, and maintains the continuity and uniformity of the blade movement during the cutting of soft soil columns.

[0051] With such a setting, traditional cutting devices mostly use manual pushing of the blade holder to adjust the cutting position, which is prone to uneven speeds and deformation of the soil column during operation. However, this solution uses an automated control method of motor-driven screw transmission to achieve uniform translation of the blade, effectively eliminating the soil disturbance problem caused by manual operation. At the same time, the transmission mechanism does not require an external guide rail system and is directly integrated into the folding main frame 1, which improves the compactness of the equipment.

[0052] Through the above technical solution, the present invention realizes precise automatic control of the cutting position, and can keep the blade in uniform linear motion during the soft soil layer cutting operation, avoiding the damage to the soil column structure caused by the impact load generated by traditional manual operation. The coordination of motor drive and screw drive significantly reduces the operation intensity, while effectively ensuring the repetitive accuracy of the cutting trajectory.

[0053] The present invention further proposes that the lifting mechanism includes two force frames 11 respectively arranged inside and outside the main frame 1, a plurality of pull rods 12 are arranged between the two force frames 11, and the pull rods 12 are respectively threadedly connected with fixing nuts at both ends of the pull rods 12, and the fixing nuts abut against the sides of the two force frames 11 away from each other, and a support spring 13 is fixedly connected between the force frame 11 located on the inner side of the main frame 1 and the main frame 1, and the support spring 13 is sleeved on the pull rod 12, and a hydraulic cylinder 14 is fixedly connected to the outer side of the main frame 1, and the hydraulic cylinder 14 abuts against the force frame 11 located outside the main frame 1, and the hydraulic cylinder 14 is vertically arranged on the top surface of the main frame 1; a pressure rod 15 is installed on the force frame 11 located on the inner side of the main frame 1, and the pressure rod 15 is vertically fixed to the top end of the linear track 4, and the number of the pressure rods 15 is not less than two groups.

[0054] Among them, the force frame 11 refers to a support frame for transmitting the lifting force, which can be implemented by a split and symmetrically arranged metal frame. The force points are dispersed by the inner and outer force frames 11 to improve the structural stability. The pull rod 12 refers to a rigid connector connecting the two force frames 11, which can be implemented by a metal rod with external threads. The distance between the two force frames 11 is controlled by adjusting the locking position of the fixing nut. The support spring 13 refers to an elastic element that provides a buffering effect, which can be implemented by a coil spring. It is sleeved on the outside of the pull rod 12 to avoid spring deflection. The hydraulic cylinder 14 refers to a linear drive device that provides lifting power, which can be implemented by a single-acting plunger cylinder. Vertical installation can ensure that the force direction coincides with the axis of the cutting track. The pressure rod 15 refers to a force transmission component connected to the linear track 4, which can be implemented by a steel rod with a rectangular cross-section. The arrangement of multiple groups of pressure rods 15 can improve the balance of track lifting.

[0055] Specifically, the inner and outer force frames 11 are rigidly connected by the pull rod 12, and the fixing nut locks the two force frames 11 at a preset distance. When the hydraulic cylinder 14 pushes the outer force frame 11 to move, the inner force frame 11 is displaced through the elastic deformation of the support spring 13, driving the pressure rod 15 to drive the linear track 4 up and down. During the cutting process, the support spring 13 can absorb vibration energy to prevent the soil column from being deformed by impact. Multiple groups of pressure rods 15 make the linear track 4 evenly stressed and avoid track deviation caused by single-point force. The vertical arrangement of the hydraulic cylinder 14 ensures that the direction of the driving force is consistent with the track motion trajectory, reducing energy loss.

[0056] In this way, the traditional lifting mechanism mostly adopts a single-sided rigid support structure, which is easy to cause track displacement deviation under the action of cutting vibration. The present invention adopts a split force frame 11 and an elastic support structure, and balances the driving force through the linkage of the inner and outer force frames 11. The support spring 13 can effectively buffer the cutting impact, and multiple groups of pressure rods 15 ensure the straightness of the track lifting trajectory, which solves the problem of soil column structure damage caused by vibration in traditional devices.

[0057] Through the above technical solutions, the present invention realizes the stable lifting control of the cutting device, reduces the disturbance of the cutting vibration to the soft soil column. The split design of the inner and outer force application frames 11 makes the structure compact and convenient for folding and storage. The combined use of the support spring 13 and the hydraulic cylinder 14 improves the adaptability to different soil types. The multi-point fixing method of the pressure rod 15 effectively prevents the cutting surface from shifting caused by the inclination of the track.

[0058] The present invention further proposes that the sample placement assembly includes a placement groove 16, which is horizontally slidably connected to the top surface of the positioning table 3. A plurality of partition plates 17 are fixedly connected in the placement groove 16. The plurality of partition plates 17 divide the placement groove 16 into several placement intervals, and the bottom surface of the placement interval is set as an arc surface.

[0059] Among them, the horizontal sliding connection of the placement groove 16 to the top surface of the positioning table 3 means that the placement groove 16 and the positioning table 3 achieve horizontal displacement adjustment through a guide rail or slide rail structure. Specifically, the cooperation of a dovetail groove and a slider can be used to achieve this, which is convenient for adjusting the positioning position of the placement groove 16 according to the length of the soil column.

[0060] The partition plates 17 dividing the placement groove 16 into several placement intervals means that the internal space of the placement groove 16 is divided into multiple independent regions by a plurality of fixedly connected partition plates 17. Specifically, metal plates fixed by welding or bolts can be used to achieve this, ensuring that each region can independently accommodate different segmented soil column samples.

[0061] The bottom surface of the placement interval being set as an arc surface means that the surface of the bottom of the placement groove 16 in contact with the soil column is concave inwards. Specifically, it can be achieved by stamping or casting a metal plate to reduce the contact area between the bottom of the soil column and the placement groove 16.

[0062] Specifically, the placement groove 16 is installed on the positioning table 3 through a horizontal sliding connection structure. During operation, the placement groove 16 can be moved to the cutting position according to actual needs. The partition plates 17 divide the placement groove 16 into multiple independent intervals, and the segmented soil columns after cutting can be placed in different intervals respectively to avoid mutual extrusion of the samples. The arc-shaped bottom surface of the placement interval forms a line contact rather than a surface contact with the bottom of the soil column. When the cutter cuts in, the supporting force received by the soil column is concentrated in the bottom center line area, reducing the possibility of lateral displacement of the soil column during the cutting process.

[0063] Through the above technical solutions, the present invention effectively solves the problem of sample deformation caused by frictional contact during the cutting of soft soil columns. The arc-shaped bottom surface design in cooperation with the sliding positioning structure keeps the soil column stable during the cutting process. The partition plates 17 separating the intervals ensure clear stratification of the samples, improving the cutting accuracy and storage standardization of soft soil samples.

[0064] Positioning plates are respectively arranged at both ends within the independent section of the placement groove 16, and slits are vertically formed in the positioning plates. The soil column is arranged between the positioning plates, and the positioning plates are connected to the side wall of the placement groove 16 through springs, ensuring that the positioning plates can abut against the ends of the soil column.

[0065] The present invention further proposes that a propulsion assembly is installed on the positioning platform 3. The propulsion assembly includes a gear 18, the gear 18 is rotatably connected to the top surface of the positioning platform 3, a tooth groove is formed in the bottom surface of the placement groove 16, the gear 18 meshes with the tooth groove, a connecting shaft is rotatably connected to the side surface of the positioning platform 3, the connecting shaft is axially connected to the gear 18, and a rocker 19 is perpendicularly and fixedly connected to the connecting shaft. The rocker 19 has an L-shaped structure.

[0066] Among them, the gear 18 refers to a transmission component with a continuous tooth profile, and specifically, a steel gear 18 can be used to achieve it. It transmits rotational motion through tooth surface meshing and is used to convert the rotation of the rocker 19 into the circumferential displacement of the gear 18.

[0067] Among them, the tooth groove refers to a groove structure matching the tooth profile of the gear 18, and specifically, it can be realized by linearly arranged grooves. It forms a transmission relationship through meshing with the gear 18 and is used to convert the rotation of the gear 18 into the horizontal movement of the placement groove 16.

[0068] Among them, the connecting shaft refers to a cylindrical component for transmitting torque, and specifically, a hollow metal shaft can be used to achieve it. It is used to transmit the operating force of the rocker 19 to the gear 18 through fixed connections at both ends with the gear 18 and the rocker 19.

[0069] Among them, the rocker 19 refers to a lever component operated manually, and specifically, an L-shaped bent steel rod can be used to achieve it. It amplifies the operating torque through the lever principle and reduces the force application intensity required for manually pushing and pulling the placement groove 16.

[0070] Specifically, when it is necessary to adjust the longitudinal position of the soil column in the cutting area, the operator manually rotates the rocker 19 to drive the connecting shaft to rotate, and the connecting shaft drives the gear 18 to rotate around its own axis. Since the gear 18 remains in meshing with the tooth groove at the bottom of the placement groove 16, the rotational motion of the gear 18 is converted into the linear displacement of the tooth groove, thereby pushing the placement groove 16 to slide along the top surface of the positioning platform 3. The L-shaped rocker 19 structure extends the length of the force arm, enabling the operator to apply only a small torque to achieve the smooth movement of the placement groove 16 and avoiding the shaking or deviation of the soil column during the movement due to excessive force application.

[0071] With such a setting, in the conventional device, the sample placement groove 16 needs to be completely positioned by manual pushing and pulling, and problems such as inaccurate positioning are likely to occur. In this solution, through the meshing transmission between the gear 18 and the tooth groove, the manual rotation action is converted into the linear displacement of the placement groove 16, so that the movement process of the soil column always proceeds in a single direction, making the feeding distance controllable and ensuring the positioning accuracy.

[0072] Through the above technical solution, the present invention realizes the precise positioning and adjustment of the soil column sample before cutting, avoids the positioning deviation caused by manual pushing and pulling, and ensures that the cutting line is parallel to the axis of the soil column. By replacing the direct pushing and pulling operation with mechanical transmission, the vibration interference suffered by the soil column during movement is reduced, the original structure integrity of the soft soil column is maintained, and the operation convenience is improved at the same time.

[0073] The present invention further provides a foldable soft soil column cutting device for geological exploration. The support assembly includes a support screw, which is vertically threadedly connected to the side frame 2, and a support seat is fixedly connected to the bottom of the support screw.

[0074] Among them, the support screw refers to a rod-shaped component installed at the bottom of the side frame 2 through a vertical threaded connection method. Specifically, it can be realized by matching a metal rod with an external thread with the threaded hole on the side frame 2. By rotating the support screw, the length of its extension from the side frame 2 can be adjusted to adapt to different terrains. The support seat refers to a pressure-bearing component connected to the end of the support screw. Specifically, it can be fixedly welded with a circular or square metal plate to disperse the load by increasing the contact area with the ground.

[0075] Specifically, when the side frame 2 is unfolded and in the working state, the support screw is adjusted by rotation to contact the ground, and the support seat abuts against the ground surface to form a stable support point. For example, when operating on a slope or soft ground, by separately adjusting the extension length of the support screws on each side frame 2, the main frame 1 can be kept in a horizontal state, avoiding the inclination of the cutting device caused by uneven ground. At the same time, the frictional force generated by the contact between the support seat and the ground surface can inhibit the displacement of the side frame 2 caused by the force during the cutting process.

[0076] With such a setting, traditional cutting devices usually adopt support legs with a fixed length or directly rely on the main frame 1 to contact the ground, making it difficult to cope with complex terrains in the wild. In this solution, the adjustable support screw connected by threads enables the support height to be dynamically adjusted according to the working environment, and together with the multi-point adaptive support formed by the bottom support seat, significantly improves the stability of the device on uneven ground.

[0077] Through the above technical solution, the present invention effectively solves the problem of equipment shaking caused by unstable support in soft ground surfaces or inclined terrains in traditional cutting devices, prevents the blade from skewing caused by the displacement of the side frame 2 during the cutting process, and thus reduces the mechanical disturbance to the original structure of the soil column. The combined structure of the support screw and the support seat provides an adjustable three-dimensional support system for the side frame 2 in the unfolded state while ensuring portability.

[0078] The present invention further proposes that magnets 20 are respectively installed on the side frame 2 and the main frame 1, and the magnets on the side frame 2 are arranged corresponding to the magnets 20 on the main frame 1.

[0079] Among them, the magnet 20 refers to an element that can generate a magnetic field, and specifically, a permanent magnet or an electromagnet 20 can be used to achieve this, such as a neodymium iron boron permanent magnet or a current-carrying coil structure. The magnetic stickers on the side frame 2 and the magnets 20 on the main frame 1 are arranged corresponding to each other, which means that the magnetic pole distributions and installation positions of the two match each other, so that an adsorption force can be formed between the magnets 20 in the folded state, thereby enhancing the connection stability between the side frame 2 and the main frame 1.

[0080] Specifically, when the side frame 2 folds towards the main frame 1, the magnetic stickers on the side frame 2 and the magnets 20 on the main frame 1 come into contact at the corresponding positions, and rapid positioning and fixation are achieved through magnetic adsorption. In the unfolded state, the magnets 20 of the side frame 2 and the main frame 1 are separated to avoid interference with sample placement or cutting operations. The magnets 20 can be embedded in the installation grooves of the side frame 2 and the main frame 1 and fixed by bonding or clamping.

[0081] In some specific embodiments, the magnetic stickers on the side frame 2 can be arranged in an annular array, and the same number of magnets 20 are arranged at the corresponding positions on the main frame 1. For example, 4 groups of magnets 20 are installed on each side frame 2, and 4 groups of corresponding magnets 20 are arranged on both sides of the main frame 1. The size of the magnets 20 can be selected as a circular sheet structure with a diameter of 8 - 12 mm and a thickness of 2 - 3 mm, and the distance between adjacent magnets 20 can be controlled within the range of 20 - 30 mm.

[0082] With such a setting, most traditional folding devices use mechanical buckles or bolts to fix the folding components, which have the problems of cumbersome operation and easy wear. This solution simplifies the folding operation steps through magnetic adsorption positioning, avoids the jamming failure caused by sediment intrusion of metal buckles in the field environment, and reduces the number of additional fixing components at the same time.

[0083] Through the above technical solution, while ensuring the stability of the folding structure, the present invention significantly improves the folding efficiency of the device. The magnetic connection method enables the side frame 2 not to require manual alignment of the lock during the unfolding or folding process, reducing the operation complexity, and is particularly suitable for field exploration scenarios that require frequent transportation. The adsorption force between the magnets 20 can effectively prevent the accidental unfolding of the side frame 2 due to jolting during transportation, ensuring the compactness of the overall structure of the device.

[0084] The present invention further proposes that magnets 20 are respectively installed on the side frame 2 and the main frame 1, and the magnets 20 on the side frame 2 and the magnets 20 on the main frame 1 are arranged corresponding to each other.

[0085] Among them, the magnet 20 refers to an element used to generate magnetic suction force, and specifically, a permanent magnet or an electromagnet 20 can be used to achieve this. The rapid positioning and fixing of the side frame 2 and the main frame 1 are realized through magnetic adsorption. The corresponding arrangement means that the magnets 20 on the side frame 2 and the magnets 20 on the main frame 1 match each other in position during folding, and specifically, it can be achieved by symmetric installation or opposite polarities to ensure that the side frame 2 and the main frame 1 fit tightly in the folded state.

[0086] Specifically, in the folded state, the side frame 2 rotates around the main frame 1 to the closed position. At this time, the magnets 20 on the side frame 2 and the magnets 20 on the main frame 1 generate magnetic suction force due to the corresponding arrangement, thereby stably fixing the side frame 2 on the main frame 1. The installation positions of the magnets 20 are designed according to the structural cooperation relationship after folding. For example, the magnets 20 are respectively embedded in the folding contact surface of the side frame 2 and the corresponding contact surface of the main frame 1, and the adsorption effect is enhanced by arranging them with opposite polarities.

[0087] With such a setting, traditional folding devices usually use mechanical buckles or bolts to fix the folding components. When operating, it is necessary to manually align and tighten the bolts, which is a cumbersome process and there is a risk of losing components. In contrast, the magnetic adsorption method of the magnet 20 does not require manual locking. It automatically adsorbs and fixes during folding, greatly improving the operation efficiency and at the same time avoiding the problem of component loosening caused by forgetting the fixing steps.

[0088] Through the above technical solution, the present invention realizes the rapid and automatic fixation of the side frame 2 after folding through the corresponding arrangement of the magnets 20, improves the structural stability of the device during storage, reduces the wear risk caused by component shaking during transportation, simplifies the operation process at the same time, and meets the requirements of rapid field operations.

[0089] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0090] The embodiments described above are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A collapsible soft soil column cutting device for geological exploration, characterized in that Comprising: A folding rack, the folding rack includes a main frame (1) and side frames (2), there are two groups of the side frames (2), and the two groups of side frames (2) are symmetrically and rotatably connected to both sides of the main frame (1), and a positioning component is arranged between the main frame (1) and the side frames (2); A positioning table (3), the positioning table (3) is fixed on the main frame (1); A sample placing component, the sample placing component is slidably connected to the positioning table (3), after the side frames (2) are unfolded, they are flush with the positioning table (3), and the sample placing component is located on the tops of the two groups of side frames (2); A cutting device, the cutting device includes a linear track (4), the linear track (4) is vertically slidably connected to the main frame (1), a mounting block (5) is slidably connected to the linear track (4), a cutting knife is fixed on the mounting block (5) through a fixing member, a linear moving component is installed on the linear track (4), the mounting block (5) is installed on the linear moving component, a lifting mechanism is installed on the top of the main frame (1), and the bottom of the lifting mechanism is fixed to the top surface of the linear track (4); Wherein, a support component is detachably connected to the side frames (2).

2. The collapsible soft soil column cutting device for geological exploration according to claim 1, wherein: There are four groups of the positioning components, and the four groups of positioning components are arranged in pairs symmetrically. The positioning component includes a support rod (6) and an adjusting threaded sleeve (7). There are two groups of the support rods (6), and the two groups of support rods (6) are respectively rotatably connected to the side of the main frame (1) and the side of the side frame (2) through mounting seats. The adjusting threaded sleeve (7) is arranged between the two groups of support rods (6), and the support rod (6) is threadedly connected to the adjusting threaded sleeve (7).

3. The collapsible soft soil column cutting device for geological exploration according to claim 1, wherein: The fixing member includes a positioning bolt. A threaded hole is opened on the mounting block (5). The positioning bolt passes through the cutting knife and is threadedly connected to the threaded hole, and the positioning bolt abuts against the cutting knife.

4. The collapsible soft soil column cutting device for geological exploration according to claim 1, characterized in that: The linear moving component includes a horizontal screw rod (8). The horizontal screw rod (8) is rotatably connected to the linear track (4). The horizontal screw rod (8) passes through the mounting block (5) and is threadedly connected to the mounting block (5). One end of the linear track (4) is fixedly connected to a mounting frame (9), and a driving motor (10) is fixedly connected to the mounting frame (9). The driving motor (10) is axially connected to the horizontal screw rod (8).

5. The collapsible soft soil column cutting device for geological exploration according to claim 1, characterized in that: The lifting mechanism includes two force - applying frames (11) respectively arranged inside and outside the main frame (1). A number of pull rods (12) are arranged between the two force - applying frames (11). Fixing nuts are respectively thread - connected to both ends of the pull rod (12). The fixing nuts are abutted against the mutually - remote sides of the two force - applying frames (11). A support spring (13) is fixedly connected between the force - applying frame (11) located inside the main frame (1) and the main frame (1). The support spring (13) is sleeved on the pull rod (12). A hydraulic cylinder (14) is fixedly connected to the outside of the main frame (1). The hydraulic cylinder (14) is abutted against the force - applying frame (11) located outside the main frame (1). The hydraulic cylinder (14) is vertically arranged perpendicular to the top surface of the main frame (1). A pressure rod (15) is installed on the force - applying frame (11) located inside the main frame (1). The pressure rod (15) is vertically fixed at the top end of the linear track (4). The number of the pressure rods (15) is not less than two groups.

6. The collapsible soft soil column cutting device for geological exploration according to claim 1, characterized in that: The sample - placing assembly includes a placement groove (16). The placement groove (16) is horizontally slidably connected to the top surface of the positioning table (3). A number of partition plates (17) are fixedly connected inside the placement groove (16). The several partition plates (17) divide the inside of the placement groove (16) into several placement intervals. The bottom surface of the placement interval is set as an arc surface.

7. The collapsible soft soil column cutting device for geological exploration according to claim 6, wherein: A propulsion assembly is installed on the positioning table (3). The propulsion assembly includes a gear (18). The gear (18) is rotatably connected to the top surface of the positioning table (3). A tooth groove is formed on the bottom surface of the placement groove (16). The gear (18) meshes with the tooth groove. A connecting shaft is rotatably connected to the side surface of the positioning table (3). The connecting shaft is axially connected to the gear (18). A rocker (19) is vertically fixedly connected to the connecting shaft. The rocker (19) is of an L - shaped structure.

8. The collapsible soft soil column cutting device for geological exploration according to claim 1, wherein: The support assembly includes a support screw rod. The support screw rod is vertically thread - connected to the side frame (2). A support seat is fixedly connected to the bottom of the support screw rod.

9. The collapsible soft soil column cutting device for geological exploration according to claim 1, characterized in that: Magnets (20) are respectively installed on the side frame (2) and the main frame (1), and the side magnet on the side frame (2) is arranged corresponding to the magnet (20) on the main frame (1).

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