A portable rock sampling device applied to polar regions

Abstract

The present invention provides a portable rock sampling device applied to polar regions, which includes a sampling device, a dust suction rod, a dust storage rod, a two-way climbing monkey jack, a sampler fixing device, a portable connecting rod device and a rod connecting device. The sampler fixing device is combined with a damping component through a rigid support structure to effectively reduce torque vibration during the sampling process. The dust generated during the sampling process is absorbed and stored through the dust suction rod and the dust storage rod to reduce environmental pollution. The portable connecting rod device cooperates with the rod connecting device through a modular quick connection structure to quickly extend the sampling depth. The innovation of the present invention lies in the deep integration of modular lightweight design, pressure control and full-process dust management, realizing low damage, low pollution and all-terrain adaptability for high-intensity rock sampling on portable devices, and is particularly suitable for fine sampling scenarios sensitive to environmental disturbance such as ecological protection areas and polar regions.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration equipment, and particularly relates to a portable rock sampling device applied to polar regions. Background Art

[0002] As a core material for basic geological research and engineering construction, the sampling technology of rocks has long faced multiple constraints in terms of efficiency, quality, and safety. Traditional sampling methods mainly rely on three methods: manual knocking, mechanical crushing, and rotary drilling, all of which have significant technical defects. Manual tools (such as geological hammers and chisels) rely on high-intensity manual impact, resulting in low sampling efficiency. Moreover, the uncontrollable direction of the impact energy leads to a high rate of sample structure damage, and at the same time, there is a risk of safety accidents. Although large hydraulic splitters or electric crushers improve the operation intensity, their equipment quality is generally too heavy, with poor terrain adaptability and short continuous working time, making it difficult to be practical in complex geological exploration. Rotary drilling technology can obtain core samples, but the equipment installation is difficult and the economic cost is significant. The common defect of the existing technologies is especially reflected in the insufficient lightweight of the equipment: although manual tools have a low weight, relying on manual work results in insufficient energy density; mechanical and rotary equipment generally use rigid metal structures to achieve high-intensity sampling, resulting in a high overall machine quality. Transportation requires the cooperation of multiple people or lifting equipment and cannot be deployed at all in restricted spaces such as steep slopes and karst caves.

[0003] The above limitations severely restrict the refined sampling requirements in special scenarios such as high mountains, canyons, cultural heritage protection areas, and polar regions. There is an urgent need to develop a new generation of sampling devices with both lightweight and low damage. Summary of the Invention

[0004] In order to solve the problems of low efficiency, heavy equipment, and difficult operation of traditional rock sampling technologies, the present invention provides a portable rock sampling device, which includes a sampling device, a dust suction rod, a dust storage rod, a two-way climbing monkey jack, a sampler fixing device, a portable connecting rod device, and a rod connecting device; the sampling device, the dust suction rod, and the dust storage rod are arranged coaxially in the vertical direction, and the three penetrate through the central through hole of the base to form a continuous working axis; the lower end of the dust suction rod is telescopically connected to the top of the sampling device, and the upper end is detachably and communicatively connected to the dust storage rod through the rod connecting device; the sampler fixing device is fixed on the hole wall of the drill hole, and the internal guiding sliding ring thereof slidably cooperates with the outer wall of the sampling device; the two-way climbing monkey jack is vertically arranged between the portable connecting rod device and the base and is connected to the sampling device through a clamping plate to drive the sampling device to move axially along the rock hole; the portable connecting rod device adjusts the height of the device by increasing or decreasing the number of rod sections.

[0005] Further, the sampling device includes a core cutter, a sampling cylinder, a drill bit, an inclined surface bump, a motor, and a chute; the core cutter is coaxially fixed at the front end of the sampling cylinder, and diamond cutting teeth are provided on the outer edge; a chute is provided on the outer wall of the rear end of the sampling cylinder, and an inclined surface bump is provided on the inner wall; the drill bit is coaxially connected inside the sampling cylinder; the motor is fixed at the tail of the sampling cylinder, and its output shaft synchronously drives the drill bit and the core cutter to rotate, realizing core cutting and non-destructive breaking.

[0006] Further, the dust suction rod includes a dust suction rod member, a slip ring groove, a rack, a push rod, a dust suction hole, a dust suction machine housing, a fan blade, and a dustproof cover; the dust suction rod member is a round tube, with two dust suction holes symmetrically distributed at the front end, a rod connecting device provided at the tail end, and the outer diameter of the front end being equal to the inner diameter of the tail end; the slip ring groove is axially opened along the outer wall of the dust suction rod member, and the rack is located at the front end of the slip ring groove for linking with the sampler fixing device; the dust suction machine housing is coaxially fixed in the inner cavity at the tail end of the dust suction rod member, a dustproof cover is provided at the front end, and a fan blade is encapsulated inside; the push rod is located at the tail end of the dust suction rod member for triggering the sampler fixing device to disengage from the hole wall.

[0007] Further, the dust storage rod includes a dust storage rod member, a chute, a dust storage bin cover, and a limiting rod; the dust storage rod member is a round tube, the outer diameter of the front end is equal to the inner diameter of the tail end, and the front end is detachably connected to the dust suction rod through a rod connecting device; two chutes are axially symmetrically opened along the outer wall of the dust storage rod member; the dust storage bin cover is a conical cover body, coaxially sleeved on the front end of the dust storage rod member; the limiting rod is 4 parallel rigid rods, one end of which is fixed to the front end of the dust storage rod member, passes through the dust storage bin cover and has a clearance fit with it, restricting the dust storage bin cover to only move axially.

[0008] Further, the two-way climbing jack includes a climbing rod, a top seat, a climbing pin, a clamping plate, a downward pressure switch, a downward pressure operating rod, an upward lifting operating rod, an upward lifting switch, and an extended crank; both ends of the climbing rod are bolted to a top seat respectively; the upper top seat contacts the bottom of the portable connecting rod device, and the lower end is arranged on the base; a downward pressure switch and an upward lifting switch are provided on one side of the climbing pin, and a clamping plate is provided on the other side. The clamping plate is a U-shaped fixture, which is clamped in the rod groove to drive the rod to move up and down; the downward pressure operating rod and the upward lifting operating rod are respectively hinged on both sides of the climbing pin, and the climbing pin is driven to move axially along the climbing rod by the reciprocating swing of the extended crank; the head end of the extended crank is sleeved on the ends of the downward pressure operating rod and the upward lifting operating rod, and the tail end is provided with anti-slip lines.

[0009] Furthermore, the sampler fixing device includes a ratchet, a toothed pawl, a short arm, a long arm, a slider, a ratchet fixing seat and a slip ring; the slip ring is sleeved on the outer wall of the front end of the dust suction rod, and the ratchet fixing seats are symmetrically welded on both sides of the slip ring; the ratchet is installed in the inner cavity of the ratchet fixing seat and meshes with the ratchet rack in the slip ring groove on the outer wall of the dust suction rod; the toothed pawl is hinged to the side wall of the ratchet fixing seat through a rotating shaft, and a spring is provided at the end to make its toothed pawl embed into the ratchet tooth groove; the short arm and the long arm are made of spring steel sheets and are hinged by a pin shaft; a driving tooth is provided at the front end of the short arm to mesh with the tooth part at the end of the toothed pawl, and the end of the long arm slides with the slide groove of the sampling device and the slip ring groove of the dust suction rod through the slider; when the short arm and the long arm are unfolded, they are in the same line and close to the dust suction rod, and the total length after folding is greater than the drilling radius and is fixed to the inner wall of the drill hole.

[0010] Furthermore, the portable connecting rod device includes an upper box, a lower box, a push-down handle, a rotating shaft, a positioning groove, a vertical pole arm, a support frame, a base and a conventional pole; the upper box is hinged to the inside of the lower box through a rotating shaft, and a rectangular hole is opened on its bottom plate, which is slightly larger than the positioning groove, and the push-down handles are symmetrically welded on both sides; the positioning groove is a semicircular groove, which is arranged on the bottom plate of the lower box and passes through the rectangular hole of the bottom plate of the upper box; the vertical pole arm is a semicircular tube, one end of which is welded to the inner wall of the upper box, and the other end is provided with a semicircular bayonet, which is coaxial with the positioning groove and the height difference is the diameter of the conventional pole; the conventional pole is a round tube, and the outer diameter of the front end is equal to the inner diameter of the tail end; the support frame is vertically fixed to the base and connected to the bottom of the lower box.

[0011] Furthermore, the rod connecting device includes a rack, a connecting ratchet, a block and an unlocking ring; the rack is symmetrically distributed along the outer wall of the front end of the rod, and meshes with the connecting ratchet at the end of the adjacent rod; the connecting ratchet is symmetrically embedded in the inner wall of the end of the rod, two ratchets form a group, and the axial spacing is 1.5 times the width of the rack; the block is an L-shaped steel lock tongue, which is pressed into the connecting ratchet tooth groove by a spring; the unlocking ring is sleeved on the outer wall of the end of the rod, and its inner wall is provided with a conical push surface. When the unlocking ring moves up along the guide groove, the conical push surface presses the tail of the block to make it disengage from the tooth groove, thereby realizing the separation of the rods.

[0012] A portable rock sampling device for polar regions, the steps are as follows:

[0013] Step a: Assemble and position the equipment. After fixing the base, install the extended crank handle of the two-way climbing monkey jack, rigidly couple the clamping plate with the rod groove, start the motor, control the hole opener to rotate and cut, and at the same time operate the downward control lever to drive the sampling device downward at a uniform speed, start the fan blades of the dust suction rod to form negative pressure, and the dust is synchronously sucked into the dust storage rod, thereby effectively controlling the dust diffusion; after the depth reaches the inclined surface protrusion, the drill bit drills into the sample core, and the inclined surface protrusion causes the sample core to break eccentrically from the root, switch the downward pressure switch to the upward pressure switch, retract the sampling device and take out the first section of the sample core.

[0014] Step b: Reposition the sampling device. Place the sampler fixing device into the hole, and operate the downward pressing lever to drive the sampling device to press down evenly. At this time, the toothed pawl is embedded in the ratchet tooth groove, and the ratchet is engaged with the ratchet rack in the slip ring groove on the outer wall of the dust suction rod. The slip ring is relatively fixed to the dust suction rod. During the downward movement of the dust suction rod, the short arm and the long arm close. During the closing process, the short arm rotates to release the engagement between the toothed pawl and the ratchet, and the length after closing is greater than the drilling radius, so that the sampler fixing device is fixed to the inner wall of the drill hole and the rod can move through the sampler fixing device; The motor controls the rotary cutter to rotate and cut. Operate the downward pressing lever to drive the sampling device to continue to press down. When the push rod moves down to the sampler fixing device along with the dust suction rod, the push rod presses the long arm to move down, releasing the closing of the short arm and the long arm, so that the sampler fixing device is separated from the hole wall; Switch the lifting switch to retract the sampling device and extract the second core sample.

[0015] Step c: After each sampling with the same length as the rod, press the downward pressing handle of the portable rod connecting device to drive the upper box body to rotate around the rotating shaft, so that the conventional rod rolls into the positioning groove through the rectangular hole; Continue to press the handle so that the semi-circular bayonet of the vertical rod arm applies a vertical force to the proximal end of the conventional rod, and the distal end rotates counterclockwise to the vertical position under the constraint of the positioning groove, forming a mechanical interference lock with one end of the positioning groove to complete the rod extension.

[0016] Step d: Repeat Step b and Step c. The length of the rod is extended by the portable rod connecting device at each sampling interval, and the sampling work at deeper depths is completed in sequence until the required sampling depth is reached.

[0017] The present invention has the following beneficial effects compared with the prior art:

[0018] 1. Full-process dust control: The present invention integrates the dust suction rod and the dust storage rod to realize the integration of sampling-dust removal-storage. The dust capture efficiency is high, which ensures the breathing safety of the operator and avoids sample contamination.

[0019] 2. Adaptive sampling pressure regulation: The two-way climbing monkey jack device adopts two-way motion control and can output continuously adjustable pressure. Combined with the buffering effect of the sampler fixing device, it ensures the constant-speed drilling of rocks with different hardnesses and improves the sample integrity rate.

[0020] 3. Ultra-lightweight module design: The portable rod connecting device and the rod connecting device of the present invention are convenient to install and use, and support sampling in complex postures in special environments such as polar regions.

[0021] 4. Quick deployment and terrain adaptation: The rod system is equipped with a ratchet-type quick-release interface, and a single person can achieve quick loading and unloading, completing the full-mode switch from surface sampling to suspended rock wall sampling, with high deployment efficiency. Description of the Drawings

[0022] The drawings are used to better understand the present invention and do not constitute an improper limitation to the present invention. Among them:

[0023] Figure 1 is a schematic structural diagram of a portable rock sampling device;

[0024] Figure 2 is a front view of a portable rock sampling device;

[0025] Figure 3 is a schematic structural diagram of the sampling device;

[0026] Figure 4 is a schematic structural diagram of the dust suction rod;

[0027] Figure 5 is a schematic structural diagram of the storage rod;

[0028] Figure 6 is a schematic structural diagram of a two-way climbing monkey jack;

[0029] Figure 7 is a schematic diagram of the details of the sampler fixing device;

[0030] Figure 8 is a front view of the sampler fixing device;

[0031] Figure 9 is a schematic structural diagram of the portable rod connecting device;

[0032] Figure 10 is a schematic diagram of the vertical rod of the portable rod connecting device;

[0033] Figure 11 is a schematic structural diagram of the rod connecting device;

[0034] Among them, 1 - sampling device, 2 - dust suction rod, 3 - dust storage rod, 4 - two-way climbing monkey jack, 5 - sampler fixing device, 6 - portable rod connecting device, 7 - rod connecting device;

[0035] 101 - boring tool, 102 - sampling cylinder, 103 - drill bit, 104 - inclined plane convex block, 105 - motor, 106 - outer wall chute of the sampling cylinder;

[0036] 201 - dust suction rod member, 202 - slip ring groove, 203 - ratchet and rack, 204 - push rod, 205 - dust suction hole, 206 - dust suction machine housing, 207 - fan blade, 208 - dustproof cover;

[0037] 301 - dust storage rod member, 302 - chute, 303 - dust storage bin cover, 304 - limiting rod;

[0038] 401 - climbing rod, 402 - top seat, 403 - climbing pin, 404 - downward pressure switch, 405 - downward pressure operating rod, 406 - upward lifting operating rod, 407 - upward lifting switch, 408 - extended grip, 409 - clamping plate;

[0039] 501 - Ratchet wheel 502 - Toothed pawl 503 - Short arm 504 - Long arm 505 - Slide block 506 - Ratchet wheel fixing seat 507 - Slip ring;

[0040] 601 - Upper box body 602 - Lower box body 603 - Lower pressing handle 604 - Rotating shaft 605 - Positioning groove 606 - Vertical rod arm 607 - Support frame 608 - Base 609 - Regular rod;

[0041] 701 - Rack 702 - Connecting ratchet wheel 703 - Clamping block 704 - Unlocking ring. Specific implementation mode

[0042] The following describes exemplary embodiments of the present invention with reference to the accompanying drawings. Various details of the embodiments of the present invention are included to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, descriptions of well-known functions and structures are omitted in the following description for clarity and conciseness.

[0043] See attached Figure 1 and attached Figure 2 and, the present invention provides a portable rock sampling device applied to polar regions, including a sampling device 1, a dust suction rod 2, a dust storage rod 3, a two-way climbing monkey jack 4, a sampler fixing device 5, a portable connecting rod device 6, and a rod connecting device 7; the sampling device 1, the dust suction rod 2, and the dust storage rod 3 are arranged coaxially in the vertical direction, and the three penetrate through the central through hole of the base 608 to form a continuous working axis; the lower end of the dust suction rod 2 is telescopically connected to the top of the sampling device 1, and the upper end is detachably and communicatively connected to the dust storage rod 3 through the rod connecting device 7; the sampler fixing device 5 is fixed to the drilling hole wall, and the internal guiding slip ring 507 thereof is slidably matched with the outer wall of the sampling device 1; the two-way climbing monkey jack 4 is vertically arranged between the portable connecting rod device 6 and the base 608, and is connected to the sampling device 1 through a clamping plate 409 to drive the sampling device 1 to move axially along the rock hole; the portable connecting rod device 6 adjusts the height of the device by increasing or decreasing the number of rod sections.

[0044] See attached Figure 3, the sampling device 1 includes a core cutter 101, a sampling cylinder 102, a drill bit 103, an inclined surface bump 104, a motor 105, and a chute 106 on the outer wall of the sampling cylinder; the core cutter 101 is coaxially fixed to the front end of the sampling cylinder 102, and diamond cutting teeth are provided on the outer edge; a chute 106 is provided on the outer wall at the rear end of the sampling cylinder 102, and an inclined surface bump 104 is arranged on the inner wall; the drill bit 103 is coaxially connected inside the sampling cylinder 102; the motor 105 is fixed to the tail of the sampling cylinder 102, and its output shaft synchronously drives the drill bit 103 and the core cutter 101 to rotate, realizing core cutting and non-destructive breaking off.

[0045] See the appendix Figure 4 , the dust suction rod 2 includes a dust suction rod member 201, a slip ring groove 202, a ratchet rack 203, a push rod 204, a dust suction hole 205, a dust suction machine housing 206, a fan blade 207, and a dust-proof cover 208; the dust suction rod member 201 is a circular tube, with two dust suction holes 205 symmetrically distributed at the front end, a rod connecting device 7 is arranged at the tail end, and the outer diameter of the front end is equal to the inner diameter of the tail end; the slip ring groove 202 is axially opened along the outer wall of the dust suction rod member 201, and the ratchet rack 203 is located at the front end of the slip ring groove 202 and is used to link the sampler fixing device 5; the dust suction machine housing 206 is coaxially fixed to the inner cavity at the tail end of the dust suction rod member 201, a dust-proof cover 208 is arranged at the front end, and a fan blade 207 is encapsulated inside; the push rod 204 is located at the tail end of the dust suction rod member 201 and is used to trigger the sampler fixing device 5 to disengage from the hole wall.

[0046] See the appendix Figure 5 , the dust storage rod 3 includes a dust storage rod member 301, a chute 302, a dust storage bin cover 303, and a limiting rod 304; the dust storage rod member 301 is a circular tube, the outer diameter of the front end is equal to the inner diameter of the tail end, and the front end is detachably connected to the dust suction rod 2 through the rod connecting device 7; two chutes 302 are axially symmetrically opened along the outer wall of the dust storage rod member 301; the dust storage bin cover 303 is a conical cover body and is coaxially sleeved on the front end of the dust storage rod member 301; the limiting rod 304 is 4 rigid rods, one end of which is fixed to the front end of the dust storage rod member 301, penetrates through the dust storage bin cover 303 and has a clearance fit with it, restricting the dust storage bin cover 303 to only move axially.

[0047] See the appendix Figure 6, the bidirectional climbing monkey jack 4 includes a climbing rod 401, a top seat 402, a climbing pin 403, a clamping plate 409, a downward pressure switch 404, a downward pressure operating lever 405, an upward lifting operating lever 406, an upward lifting switch 407, and an extended grip 408; both ends of the climbing rod 401 are bolted to a top seat 402 respectively; the upper top seat 402 contacts the bottom of the portable connecting rod device 6, and the lower end is arranged on the base 608; a downward pressure switch 404 and an upward lifting switch 407 are arranged on one side of the climbing pin 403, and a clamping plate 409 is arranged on the other side. The clamping plate 409 is a U-shaped fixture that is clamped in the rod groove to drive the rod to move up and down; the downward pressure operating lever 405 and the upward lifting operating lever 406 are respectively hinged on both sides of the climbing pin 403, and the climbing pin 403 is driven to move axially along the climbing rod 401 by the reciprocating swing of the extended grip 408; the head end of the extended grip 408 is sleeved on the ends of the downward pressure operating lever 405 and the upward lifting operating lever 406, and the tail end is provided with anti-slip lines.

[0048] See the appendix Figure 7 and the appendix Figure 8 , the sampler fixing device 5 includes a ratchet wheel 501, a toothed pawl 502, a short arm 503, a long arm 504, a slider 505, a ratchet wheel fixing seat 506, and a slip ring 507; the slip ring 507 is sleeved on the outer wall of the front end of the dust suction rod 2, and ratchet wheel fixing seats 506 are symmetrically welded on both sides thereof; the ratchet wheel 501 is installed in the inner cavity of the ratchet wheel fixing seat 506 and meshes with the ratchet tooth rack 203 in the slip ring groove 202 on the outer wall of the dust suction rod 2; the toothed pawl 502 is hinged to the side wall of the ratchet wheel fixing seat 506 through a rotating shaft, and a spring is provided at the end to make the toothed pawl 502 embed into the tooth groove of the ratchet wheel 501; the short arm 503 and the long arm 504 are made of spring steel sheets and are hinged through a pin shaft; a driving tooth is provided at the front end of the short arm 503 and meshes with the tooth part at the end of the toothed pawl 502, and the end of the long arm 504 is slidably matched with the outer wall chute 106 of the sampling cylinder of the sampling device 1 and the slip ring groove 202 of the dust suction rod 2 through the slider 505; when the short arm 503 and the long arm 504 are unfolded, they are collinear and closely attached to the dust suction rod 2, and the total length after folding is greater than the drilling radius and is fixed to the inner wall of the drilling hole.

[0049] See the appendix Figure 9 and the appendix Figure 10The portable connecting rod device 6 includes an upper box body 601, a lower box body 602, a push handle 603, a rotating shaft 604, a positioning groove 605, a vertical pole arm 606, a support frame 607, a base 608 and a conventional pole 609; the upper box body 601 is hinged to the inside of the lower box body 602 through the rotating shaft 604, and a rectangular hole is opened on its bottom plate, which is slightly larger than the positioning groove 605, and the push handles 603 are symmetrically welded on both sides; the positioning groove 605 is a semicircular groove, which is arranged on the bottom plate of the lower box body 602 and passes through the rectangular hole of the bottom plate of the upper box body 601; the vertical pole arm 606 is a semicircular tube, one end of which is welded to the inner wall of the upper box body 601, and the other end is provided with a semicircular bayonet, which is coaxial with the positioning groove 605 and the height difference is the diameter of the conventional pole 609; the conventional pole 609 is a round tube, and the outer diameter of the front end is equal to the inner diameter of the rear end; the support frame 607 is vertically fixed on the base 608 and connected to the bottom of the lower box body 602.

[0050] See attached Figure 11 The rod connecting device 7 includes a rack 701, a connecting ratchet 702, a clamping block 703 and an unlocking ring 704; the rack 701 is symmetrically distributed along the outer wall of the front end of the rod, and meshes with the connecting ratchet 702 at the end of the adjacent rod; the connecting ratchet 702 is symmetrically embedded in the inner wall of the end of the rod, two ratchets form a group, and the axial spacing is 1.5 times the width of the rack 701; the clamping block 703 is an L-shaped steel lock tongue, which is pressed into the tooth groove of the connecting ratchet 702 by a spring; the unlocking ring 704 is sleeved on the outer wall of the end of the rod, and its inner wall is provided with a conical push surface. When the unlocking ring 704 moves up along the guide groove, the conical push surface presses the tail of the clamping block 703 to make it disengage from the tooth groove, thereby realizing the separation of the rods.

[0051] The present invention discloses a method for using a portable rock sampling device for polar regions, comprising the following steps:

[0052] Step a: Assemble and position the equipment, fix the base 608, install the extended handle 408 of the two-way climbing monkey jack 4, rigidly couple the clamping plate 409 with the rod groove, start the motor 105, control the hole opener 101 to rotate and cut, and at the same time operate the downward control lever 405 to drive the sampling device 1 downward at a uniform speed, start the fan blades 207 of the dust suction rod 2 to form a negative pressure, and the dust is synchronously sucked into the dust storage rod 3, thereby effectively controlling the dust diffusion; after the depth reaches the inclined surface protrusion 104, the drill bit 103 drills into the sample core, and the inclined surface protrusion 104 causes the sample core to break eccentrically from the root, switch the downward pressure switch 404 to the upward pressure switch 407, retract the sampling device 1 and take out the first section of the sample core.

[0053] Step b: Reposition the sampling device 1. Place the sampler fixing device 5 into the hole. Operate the pressing lever 405 to drive the sampling device 1 downwards at a uniform speed. At this time, the toothed pawl 502 engages with the tooth groove of the ratchet wheel 501. The ratchet wheel 501 meshes with the ratchet rack 203 in the slip ring groove 202 on the outer wall of the dust suction rod 2. The slip ring 507 is relatively fixed to the dust suction rod 2. During the downward movement of the dust suction rod 2, the short arm 503 and the long arm 504 close. During the closing process, the short arm 503 rotates to release the engagement between the toothed pawl 502 and the ratchet wheel 501, and the length after closing is greater than the drilling radius, so that the sampler fixing device 5 is fixed to the inner wall of the drill hole and the rod can move through the sampler fixing device 5. The motor 105 controls the rotary cutter 101 to rotate and cut. Operate the pressing lever 405 to drive the sampling device 1 to continue to press down. When the push rod 204 moves down to the sampler fixing device 5 along with the dust suction rod 2, the push rod 204 presses the long arm 504 to move down, releasing the closing of the short arm 503 and the long arm 504, so that the sampler fixing device 5 disengages from the hole wall. Switch to the lifting switch 407 to retract the sampling device 1 and extract the second core sample.

[0054] Step c: After each sampling with the same length as the rod, press the pressing handle 603 of the portable rod connecting device 6 to drive the upper box body 601 to rotate around the rotating shaft 604, so that the conventional rod 609 rolls into the positioning groove 605 through the rectangular hole; continue to press the handle 603 to make the semi-circular bayonet of the vertical rod arm 606 apply a vertical force to the proximal end of the conventional rod 609, and the distal end rotates counterclockwise to the vertical position under the constraint of the positioning groove 605, forming a mechanical interference lock with one end of the positioning groove 605 to complete the rod extension.

[0055] Step d: Repeat Step b and Step c. The length of the rod is extended by the portable rod connecting device 6 at each sampling interval, and the sampling work at deeper depths is completed in sequence until the required sampling depth is reached.

[0056] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A portable rock sampling device applied to polar regions, characterized in that: It includes a sampling device (1), a dust suction rod (2), a dust storage rod (3), a two-way climbing monkey jack (4), a sampler fixing device (5), a portable connecting rod device (6) and a rod connecting device (7); the sampling device (1), the dust suction rod (2) and the dust storage rod (3) are arranged coaxially in the vertical direction, and the three pass through the central through hole of the base (608) to form a continuous working axis; the lower end of the dust suction rod (2) is telescopically connected to the top of the sampling device (1), and the upper end is detachably and through-connected to the dust storage rod (3) through the rod connecting device (7); the sampler fixing device (5) is fixed to the drilling hole wall, and the internal guide sliding ring (507) thereof is slidably matched with the outer wall of the sampling device (1); the two-way climbing monkey jack (4) is vertically arranged between the portable connecting rod device (6) and the base (608), and is connected to the sampling device (1) through a clamping plate (409) to drive the sampling device (1) to move along the axial direction of the rock hole; the portable connecting rod device (6) realizes the height adjustment of the device by increasing or decreasing the number of rod sections; The sampler fixing device (5) includes a ratchet wheel (501), a toothed pawl (502), a short arm (503), a long arm (504), a slider (505), a ratchet fixing seat (506) and a sliding ring (507); the sliding ring (507) is sleeved on the outer wall of the front end of the dust suction rod (2), and ratchet fixing seats (506) are symmetrically welded on both sides thereof; the ratchet wheel (501) is installed in the inner cavity of the ratchet fixing seat (506) and meshes with the ratchet rack (203) in the sliding ring groove (202) on the outer wall of the dust suction rod (2); the toothed pawl (502) is hinged to the side wall of the ratchet fixing seat (506) through a rotating shaft, and a spring is arranged at the end to make the toothed pawl (502) embed into the tooth groove of the ratchet wheel (501); the short arm (503) and the long arm (504) are made of spring steel sheets and are hinged through a pin shaft; a driving tooth is arranged at the front end of the short arm (503) and meshes with the tooth part at the end of the toothed pawl (502), and the end of the long arm (504) is slidably matched with the outer wall chute (106) of the sampling cylinder of the sampling device (1) and the sliding ring groove (202) of the dust suction rod (2) through the slider (505); when the short arm (503) and the long arm (504) are unfolded, they are collinear and closely attached to the dust suction rod (2), and the total length after folding is greater than the drilling radius and is fixed to the inner wall of the drilling; The portable connecting rod device (6) includes an upper box body (601), a lower box body (602), a downward pressing handle (603), a rotating shaft (604), a positioning groove (605), a vertical rod arm (606), a support frame (607), a base (608), and a conventional rod (609); the upper box body (601) is hinged inside the lower box body (602) through the rotating shaft (604), and its bottom plate is provided with a rectangular hole, the size of which is slightly larger than the positioning groove (605), and the downward pressing handles (603) are symmetrically welded on both sides; the positioning groove (605) is a semi-circular groove, arranged on the bottom plate of the lower box body (602) and passing through the rectangular hole on the bottom plate of the upper box body (601); the vertical rod arm (606) is a semi-circular pipe, one end of which is welded to the inner wall of the upper box body (601), and the other end is provided with a semi-circular bayonet, which is coaxial with the positioning groove (605) and the height difference is the diameter of the conventional rod (609); the conventional rod (609) is a circular pipe, and the outer diameter of the front end is equal to the inner diameter of the tail end; the support frame (607) is vertically fixed on the base (608) and is connected to the bottom of the lower box body (602).

2. The portable rock sampling device applied to polar regions according to claim 1, wherein The sampling device (1) includes a core drill (101), a sampling cylinder (102), a drill bit (103), an inclined convex block (104), a motor (105), and a chute on the outer wall of the sampling cylinder (106); the core drill (101) is coaxially fixed to the front end of the sampling cylinder (102), and diamond cutting teeth are arranged on the outer edge; a chute on the outer wall of the sampling cylinder (106) is arranged on the outer wall of the rear end of the sampling cylinder (102), and an inclined convex block (104) is arranged on the inner wall; the drill bit (103) is coaxially inserted into the sampling cylinder (102); the motor (105) is fixed to the tail of the sampling cylinder (102), and its output shaft synchronously drives the drill bit (103) and the core drill (101) to rotate, so as to realize core cutting and non-destructive breaking off.

3. A portable rock sampling device applied to polar regions according to claim 2, characterized in that, The dust suction rod (2) includes a dust suction rod member (201), a slip ring groove (202), a ratchet rack (203), a push rod (204), a dust suction hole (205), a dust suction machine housing (206), a fan blade (207), and a dust-proof cover (208); the dust suction rod member (201) is a circular pipe, two dust suction holes (205) are symmetrically distributed at the front end, a rod connecting device (7) is arranged at the tail end, and the outer diameter of the front end is equal to the inner diameter of the tail end; the slip ring groove (202) is axially opened along the outer wall of the dust suction rod member (201), and the ratchet rack (203) is located at the front end of the slip ring groove (202) and is used to link the sampler fixing device (5); the dust suction machine housing (206) is coaxially fixed to the inner cavity at the tail end of the dust suction rod member (201), a dust-proof cover (208) is arranged at the front end, and a fan blade (207) is encapsulated inside; the push rod (204) is located at the tail end of the dust suction rod member (201) and is used to trigger the sampler fixing device (5) to break away from the hole wall.

4. A portable rock sampling device applied to polar regions according to claim 1, characterized in that, The dust storage rod (3) comprises a dust storage rod (301), a slide groove (302), a dust storage bin cover (303) and a limit rod (304); the dust storage rod (301) is a circular tube, the outer diameter of the front end is equal to the inner diameter of the rear end, and the front end is detachably connected to the dust suction rod (2) through a rod connection device (7); the slide groove (302) is provided with two axially symmetrical portions along the outer wall of the dust storage rod (301); the dust storage bin cover (303) is a conical cover body, which is coaxially sleeved on the front end of the dust storage rod (301); the limit rod (304) is 4 rigid rods, one end of which is fixed to the front end of the dust storage rod (301), passes through the dust storage bin cover (303) and is loosely matched with the dust storage bin cover (303), so as to restrict the dust storage bin cover (303) to move only axially.

5. A portable rock sampling device applied to polar regions according to claim 1, characterized in that, The bidirectional monkey climbing jack (4) comprises a climbing pole (401), a top seat (402), a climbing pin (403), a clamping plate (409), a push-down switch (404), a push-down joystick (405), a lift joystick (406), a lift switch (407) and an extended handle (408); the two ends of the climbing pole (401) are respectively connected to a top seat (402) by bolts; the top seat (402) at the upper end contacts the bottom of the portable connecting rod device (6), and the lower end is arranged on the base (608); a push-down switch is arranged on one side of the climbing pin (403). (404) and an upward switch (407), and a clamping plate (409) is provided on the other side. The clamping plate (409) is a U-shaped clamp, which is clamped in the groove of the rod to drive the rod to move up and down; the downward operating rod (405) and the upward operating rod (406) are respectively hinged on both sides of the climbing pin (403), and the climbing pin (403) is driven to move axially along the climbing rod (401) through the reciprocating swing of the extended handle (408); the head end of the extended handle (408) is sleeved on the ends of the downward operating rod (405) and the upward operating rod (406), and the ends are provided with anti-slip grooves.

6. The portable rock sampling device applied to the polar region according to claim 5, characterized in that, The rod connecting device (7) comprises a rack (701), a connecting ratchet (702), a clamping block (703) and an unlocking ring (704); the rack (701) is symmetrically distributed along the outer wall of the front end of the rod and meshes with the connecting ratchet (702) at the end of the adjacent rod; the connecting ratchet (702) is symmetrically embedded in the inner wall of the end of the rod, two ratchets form a group, and the axial spacing is 1.5 times the width of the rack (701); the clamping block (703) is an L-shaped steel locking tongue, which is pressed into the tooth groove of the connecting ratchet (702) by a spring; the unlocking ring (704) is sleeved on the outer wall of the end of the rod, and the inner wall of the unlocking ring (704) is provided with a conical push surface. When the unlocking ring (704) moves upward along the guide groove, the conical push surface presses the tail of the clamping block (703) to make it disengage from the tooth groove, thereby realizing the separation of the rods.

7. A method of using a portable rock sampling device for polar regions as described in claim 6, characterized in that, The steps include: Step a: Assemble and position the equipment. After fixing the base (608), install the extension grip (408) of the double-directional climbing jack (4). The clamping plate (409) is rigidly coupled with the rod groove. Start the motor (105) to control the rotary cutting of the hole opener (101). At the same time, operate the downward pressure lever (405) to drive the sampling device (1) downward at a uniform speed. Start the fan blade (207) of the dust suction rod (2) to form a negative pressure, and the dust is synchronously sucked into the dust storage rod (3), so as to effectively control the dust diffusion. After the depth reaches the inclined surface convex block (104), the drill bit (103) drills into the sample core, and the inclined surface convex block (104) causes the sample core to break eccentrically from the root. Switch the downward pressure switch (404) to the upward lift switch (407), retract the sampling device (1) and take out the first section of the sample core. Step b: Reposition the sampling device (1). Place the sampler fixing device (5) into the hole. Operate the downward pressure lever (405) to drive the sampling device (1) downward at a uniform speed. At this time, the toothed pawl (502) is embedded in the tooth groove of the ratchet wheel (501). The ratchet wheel (501) meshes with the ratchet rack (203) in the slip ring groove (202) on the outer wall of the dust suction rod (2). The slip ring (507) is relatively fixed to the dust suction rod (2). During the downward movement of the dust suction rod (2), the short arm (503) and the long arm (504) close. During the closing process, the short arm (503) rotates to release the engagement between the toothed pawl (502) and the ratchet wheel (501), and the length after closing is greater than the drilling radius, so that the sampler fixing device (5) is fixed on the inner wall of the drill hole and the rod can move through the sampler fixing device (5). The motor (105) controls the rotary cutting of the hole opener (101). Operate the downward pressure lever (405) to drive the sampling device (1) to continue to press down. When the push rod (204) moves down to the sampler fixing device (5) along with the dust suction rod (2), the push rod (204) presses the long arm (504) to move down, releasing the closing of the short arm (503) and the long arm (504), so that the sampler fixing device (5) disengages from the hole wall. Switch the upward lift switch (407) to retract the sampling device (1) and extract the second section of the sample core. Step c: After each sampling section with the same length as the rod, press the downward pressure handle (603) of the portable rod connecting device (6) to drive the upper box body (601) to rotate around the rotating shaft (604), so that the conventional rod (609) rolls into the positioning groove (605) through the rectangular hole. Continue to press the handle (603) so that the semi-circular bayonet of the vertical rod arm (606) exerts a vertical force on the proximal end of the conventional rod (609), and the distal end rotates counterclockwise to the vertical position under the constraint of the positioning groove (605), forming a mechanical interference lock with one end of the positioning groove (605) to complete the rod extension. Step d: Repeat Step b and Step c. The length of the rod is extended by the portable rod connecting device (6) at each sampling interval, and the sampling work at deeper depths is completed in sequence until the required sampling depth is reached.

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