Portable polar region sea ice core rapid sampling device and method

Abstract

The invention relates to the technical field of sampling, and discloses a portable polar region sea ice core rapid sampling device and method, and the portable polar region sea ice core rapid sampling device comprises a positioning frame. The device is provided with the sampling cutting plate in composite motion, through rotation and feeding to an ice layer, the device is more efficient than traditional drilling, and ice core cutting can be rapidly completed; when the cutting plates are attached, the bottom of the ice core is automatically separated from an ice layer through the arc-shaped track, and damage caused by secondary breaking is avoided; meanwhile, when the vertical rod slides to the slope along the arc guide rail, thrust drives the synchronous block to move upwards, the sampling cutting plate automatically carries the ice core to be separated from the ice surface, overall separation is achieved, manual intervention is not needed, sampling continuity and stability are guaranteed, and the manual operation cost is reduced; and the efficiency and the reliability of polar region ice core sampling are optimized.

Description

Technical Field

[0001] The present invention belongs to the technical field of sampling, and relates to a portable polar sea ice core rapid sampling device and method. Background Art

[0002] In polar sea ice research, ice core sampling is a key means to obtain important information such as the physical and chemical properties of sea ice.

[0003] At present, traditional ice core sampling methods mostly use drilling sampling methods. In the ice core separation process, after traditional drilling sampling, the ice core needs to be separated from the ice layer by manual labor or additional tools. This process can easily lead to secondary separation of the ice core. Once the ice core is damaged, it will affect the subsequent detection results; and the operation of separating the ice core from the ice surface mostly relies on manual lifting or the assistance of simple tools. Under the extremely low temperatures in the polar regions, the operator's hand flexibility will be greatly reduced due to the cold. Manual operation is not only extremely inconvenient and inefficient, but it is also difficult to ensure the uniformity and stability of force. If the ice core cannot be removed in time, the newly generated ice debris and melted ice water will quickly refreeze at low temperatures, and the ice core will stick to the ice layer again, further increasing the difficulty of ice core separation, which can easily lead to poor sampling continuity and even cause the ice core to fall or break.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A portable polar sea ice core rapid sampling device comprises a positioning frame.

[0007] A synchronous block is rotatably mounted on the bottom of the positioning frame, a driving motor is mounted on the positioning frame, and the driving motor is used to drive the synchronous block to rotate, a pair of rocker arms are rotatably mounted on the bottom of the synchronous block, and a sampling cutting plate is mounted at the end of each rocker arm, and the sampling cutting plate is arc-shaped;

[0008] A spiral guide rail is installed at the bottom of the positioning frame, and a vertical rod is slidingly provided on the spiral guide rail, which slides horizontally with the surface of the synchronization block. A connecting plate is installed on the rocker arm, and the connecting plate is slidably connected to the output end of the vertical rod. The vertical rod slides along the spiral guide rail to push the sampling and cutting plate toward the surface of the glacier and cut the ice surface. The cutting is completed when the vertical rod slides to the end of the spiral guide rail.

[0009] An arc guide rail is installed at the end of the spiral guide rail, and a slope is provided on the surface of the arc guide rail. The vertical rod slides to the slope to pull the synchronous block upward, thereby driving the cut ice core to separate from the glacier and completing the sampling operation.

[0010] As a preferred embodiment of the present invention, support legs are installed at the four corners of the positioning frame, universal wheels are installed at the bottom of the support legs, reinforcing ribs are installed between adjacent support legs, hydraulic push rods are vertically installed on the side walls of the support legs, and push plates are installed at the output ends of the hydraulic push rods. The hydraulic push rods are used to lift the positioning frame to ensure the stability of the positioning frame.

[0011] As a preferred embodiment of the present invention, a circular plate is fixedly installed at the bottom of the positioning frame, a connecting frame is installed on the circular plate, the connecting frame is L-shaped, the connecting frame is overlapped above the positioning frame, the connecting frame and the positioning frame are screwed together by bolts, the bottom of the circular plate is connected to the spiral guide rail and the circular arc guide rail, and the center of curvature of the circular arc guide rail coincides with the center of the circular plate.

[0012] As a preferred embodiment of the present invention, a mounting plate is installed at the bottom of the positioning frame, a vertical plate is installed at the bottom of the mounting plate, the vertical plate and the mounting plate form a T shape, a reinforcing plate is installed at the connection between the vertical plate and the mounting plate, and the reinforcing plate is triangular, a side plate is installed on the side wall of the vertical plate, a sliding groove is provided on the side plate, a positioning plate is slidingly provided inside the sliding groove, the positioning plate is slidably connected to the synchronization block, a notch is provided on the positioning plate, and the connecting plate passes through the notch.

[0013] As a preferred embodiment of the present invention, a through slot is opened inside the positioning plate, the synchronization block is inserted in the through slot, the synchronization block is inserted in the through slot, and the synchronization block and the through slot are adapted to each other, and the synchronization block and the through slot are both rectangular, a limiting plate is installed at the bottom of the through slot, and the bottom of the synchronization block is overlapped on the limiting plate.

[0014] As a preferred embodiment of the present invention, a sliding rod is installed on the positioning plate, a sliding plate is slidably provided on the sliding rod, the sliding plate is connected to the surface of the synchronization block, a top plate is installed on the top of the sliding rod, a return spring is sleeved on the sliding rod, one end of the return spring is clamped on the sliding plate, and the other end of the return spring is clamped on the bottom of the top plate.

[0015] As a preferred embodiment of the present invention, a cross shaft is installed on the top of the synchronization block, and an insertion shaft is installed on the output end of the drive motor. The insertion shaft movably passes through the positioning frame, and the insertion shaft is movably connected to the cross shaft.

[0016] As a preferred embodiment of the present invention, a positioning seat is installed at the bottom of the synchronization block, a positioning shaft is rotatably installed on the positioning seat, the positioning shaft is connected to the rocker arm, the sampling cutting plate is arc-shaped, and the center of curvature of the sampling cutting plate coincides with the positioning shaft, and a sawtooth is installed at the end of the sampling cutting plate.

[0017] As a preferred embodiment of the present invention, a slider is installed on the top of the vertical pole, and the slider is slidably connected to the spiral guide rail. A fixed plate is installed on the bottom of the vertical pole, and a protrusion is installed on the fixed plate. A strip groove is provided on the connecting plate, and the protrusion is slidably set on the strip groove. A limit block is installed on the side wall of the vertical pole, and a limit rod is movably inserted through the limit block. A limit seat is installed at one end of the limit rod, and the limit seat is installed on the synchronization block.

[0018] As a preferred embodiment of the present invention, the sampling method of the portable polar sea ice core rapid sampling device comprises the following steps:

[0019] Step 1: Move the device to the target ice surface using the universal wheels installed at the bottom of the support legs. Activate the hydraulic push rod, which drives the push plate with anti-skid grooves to press against the ice surface, so that the universal wheels are off the ice surface and the device is fixed.

[0020] Step 2: Start the driving motor, and the plug shaft on its output shaft engages with the cross shaft at the top of the synchronous block, driving the synchronous block to rotate; the positioning shaft on the positioning seat at the bottom of the synchronous block drives the rocker to rotate, so that the sampling and cutting plate with an arc-shaped end and serrated teeth rotates in a circle on the surface of the ice layer. At the same time, the vertical rod and the slider on the synchronous block slide on the spiral guide rail. Through the cooperation between the protrusion on the side wall of the vertical rod and the strip-shaped groove of the connecting plate, the sampling and cutting plate slides along the spiral guide rail and cuts into the ice layer, completing the ice core cutting;

[0021] Step 3: When the upright pole slides to the arc guide rail that coincides with the curvature of the circular plate's center, the thrust of the slope at the end of the arc guide rail is used to drive the synchronous block upward through the limit block and the limit rod. When the synchronous block moves upward, the positioning seat drives the rocker arm upward, so that the sampling and cutting plate carrying the ice core is separated from the glacier surface;

[0022] Step 4: The driving motor reverses, and the compressed return spring on the slide rod releases its elastic potential energy, pushing the slide plate and the synchronization block downward to reset, so that the sampling cutting plate returns to its initial position, completing an ice core sampling operation.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention is provided with a sampling and cutting plate, which is more efficient than traditional drilling through the compound motion of self-rotation and feeding into the ice layer, and can quickly complete ice core cutting; when the cutting plate is in contact, its arc-shaped trajectory automatically separates the bottom of the ice core from the ice layer, avoiding damage caused by secondary separation; at the same time, when the vertical pole slides to the slope along the circular arc guide rail, the thrust drives the synchronous block to move upward, and the sampling and cutting plate automatically carries the ice core away from the ice surface to achieve overall separation without human intervention, which not only ensures the continuity and stability of sampling, but also reduces the cost of manual operation. This design optimizes the efficiency and reliability of polar ice core sampling through the coordination of compound motion and automated structure.

[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the attached figure:

[0027] Figure 1 A three-dimensional diagram of a portable polar sea ice rapid core sampling device;

[0028] Figure 2 This is a side view of a portable polar sea ice rapid core sampling device;

[0029] Figure 3 A partial view of a portable polar sea ice rapid sampling device Figure 1 ;

[0030] Figure 4 A portable polar sea ice core rapid sampling device Figure 3 Front view;

[0031] Figure 5 A partial view of a portable polar sea ice rapid sampling device Figure 2 ;

[0032] Figure 6 A partial view of a portable polar sea ice rapid sampling device Figure 3 ;

[0033] Figure 7 A partial view of a portable polar sea ice rapid sampling device Figure 4 ;

[0034] Figure 8 This is a structural diagram of the synchronization block of a portable polar sea ice core rapid sampling device;

[0035] Figure 9 This is a cross-sectional view of the positioning plate of a portable polar sea ice core rapid sampling device;

[0036] Figure 10 This is a diagram of the pole connection for a portable polar sea ice core rapid sampling device.

[0037] In the figure: 1, positioning frame; 11, supporting leg; 111, universal wheel; 112, reinforcing rib; 113, hydraulic push rod; 114, push plate; 12, circular plate; 121, connecting frame; 13, vertical plate; 131, side plate; 132, mounting plate; 133, reinforcing plate; 134, positioning plate; 135, slideway;

[0038] 2. Synchronous block; 21. Positioning seat; 211. Positioning shaft; 22. Sampling and cutting plate; 221. Saw teeth; 222. Rocker arm; 23. Cross shaft; 231. Insert shaft; 232. Drive motor; 24. Slide plate; 241. Slide rod; 242. Top plate; 243. Return spring; 25. Limit plate; 251. Through slot;

[0039] 3. Spiral guide rail; 31. Arc guide rail; 311. Slope; 32. Vertical pole; 321. Slider; 322. Fixed plate; 323. Protrusion; 33. Connecting plate; 331. Strip groove; 332. Notch; 34. Limit block; 341. Limit rod; 342. Limit seat. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0041] Example 1:

[0042] like Figures 1 to 10 As shown, a portable polar sea ice core rapid sampling device includes a positioning frame 1.

[0043] A synchronous block 2 is rotatably installed at the bottom of the positioning frame 1, and a drive motor 232 is installed on the positioning frame 1, and the drive motor 232 is used to drive the synchronous block 2 to rotate. A pair of rocker arms 222 are rotatably installed at the bottom of the synchronous block 2, and a sampling cutting plate 22 is installed at the end of each rocker arm 222, and the sampling cutting plate 22 is arc-shaped; in this structure, the drive motor 232 drives the synchronous block 2 to rotate, and the synchronous block 2 then drives the rocker arm 222 and the sampling cutting plate 22 to rotate, providing a power basis for ice core cutting, so that the sampling cutting plate 22 can cut the ice surface in a circular motion.

[0044] A spiral guide rail 3 is installed at the bottom of the positioning frame 1. The spiral guide rail 3 is slidingly provided with a vertical rod 32 that slides horizontally with the surface of the synchronization block 2. A connecting plate 33 is installed on the rocker arm 222. The connecting plate 33 is slidingly connected to the output end of the vertical rod 32. The vertical rod 32 slides along the spiral guide rail 3, pushing the sampling and cutting plate 22 to the surface of the glacier and cutting the ice surface, and the cutting is completed when the vertical rod 32 slides to the end of the spiral guide rail 3; through the sliding of the vertical rod 32 on the spiral guide rail 3, in conjunction with the connecting plate 33, the linear motion of the vertical rod 32 is converted into the cutting motion of the sampling and cutting plate 22 toward the ice surface, thereby realizing the gradual cutting of the ice core. Compared with a single cutting method, this structure can complete the ice core cutting work more efficiently and stably.

[0045] An arc guide rail 31 is mounted on the end of the spiral guide rail 3, and its surface is provided with a slope 311. The vertical rod 32 slides onto slope 311, pulling the synchronization block 2 upward, thereby separating the cut ice core from the glacier and completing the sampling operation. The design of the arc guide rail 31 and slope 311 allows the vertical rod 32 to slide along slope 311 after the ice core is cut, driving the synchronization block 2 upward, achieving automatic separation of the ice core. This eliminates the need for excessive human intervention and improves sampling efficiency and convenience.

[0046] like Figures 1 to 10 As shown, in a specific embodiment, support legs 11 are mounted at the four corners of the positioning frame 1. Universal wheels 111 are mounted at the bottom of the support legs 11. Reinforcing ribs 112 are installed between adjacent support legs 11. Hydraulic push rods 113 are vertically mounted on the side walls of the support legs 11. Push plates 114 are mounted at the output ends of the hydraulic push rods 113. The hydraulic push rods 113 are used to lift the positioning frame 1 and ensure its stability. The universal wheels 111 facilitate movement of the device, the reinforcing ribs 112 enhance the structural strength of the support legs 11, and the hydraulic push rods 113 drive the push plates 114 to lift the positioning frame 1, freeing the universal wheels 111 from the ice surface. This ensures the stability of the device during sampling and prevents shaking of the device from affecting the sampling effect.

[0047] like Figures 1 to 10 As shown, further, a circular plate 12 is fixedly mounted on the bottom of the positioning frame 1, and a connecting frame 121 is mounted on the circular plate 12. The connecting frame 121 is L-shaped and overlaps the top of the positioning frame 1. The connecting frame 121 and the positioning frame 1 are screwed together by bolts. The bottom of the circular plate 12 is connected to the spiral guide rail 3 and the circular arc guide rail 31. The center of curvature of the circular arc guide rail 31 coincides with the center of the circular plate 12. The arrangement of the circular plate 12 and the connecting frame 121 firmly connects the spiral guide rail 3 and the circular arc guide rail 31, ensuring the stability of the guide rail structure. The center relationship between the circular arc guide rail 31 and the circular plate 12 provides precise guidance for the motion trajectory during ice core separation.

[0048] like Figures 1 to 10As shown, further, a mounting plate 132 is mounted at the bottom of the positioning frame 1, and a vertical plate 13 is mounted at the bottom of the mounting plate 132. The vertical plate 13 and the mounting plate 132 form a T-shape. A reinforcing plate 133 is installed at the connection between the vertical plate 13 and the mounting plate 132, and the reinforcing plate 133 is triangular in shape. The side walls of the vertical plate 13 are mounted with side plates 131, and a sliding groove 135 is formed on the side plates 131. A positioning plate 134 is slidingly arranged inside the sliding groove 135. The positioning plate 134 is slidably connected to the synchronous block 2. The positioning plate 134 has a notch 332, and the connecting plate 33 passes through the notch 332. The T-shaped structure of the vertical plate 13 and the mounting plate 132, combined with the triangular reinforcing plate 133, enhances the overall structural strength. The positioning plate 134 slides within the sliding groove 135, both limiting the movement direction of the synchronous block 2 and providing support for its rotation, ensuring that the synchronous block 2 drives the rocker arm 222 and the sampling and cutting plate 22 to operate stably.

[0049] Example 2:

[0050] The difference between the above embodiment and this embodiment is that: Figures 1 to 10 As shown, the positioning plate 134 has a through slot 251 formed therein, into which the synchronization block 2 is inserted. The synchronization block 2 is inserted into the through slot 251, and the synchronization block 2 and the through slot 251 are mutually adapted. Both the synchronization block 2 and the through slot 251 are rectangular. A limit plate 25 is mounted at the bottom of the through slot 251, and the bottom of the synchronization block 2 overlaps the limit plate 25. The design of the through slot 251 and the limit plate 25 further precisely limits the movement of the synchronization block 2, ensuring the accurate position of the synchronization block 2 during rotation and vertical movement, and improving the stability and reliability of the device operation.

[0051] like Figures 1 to 10 As shown, in a specific embodiment, a slide bar 241 is mounted on the positioning plate 134, on which a slide plate 24 is slidably mounted. The slide plate 24 is connected to the surface of the synchronous block 2. A top plate 242 is mounted on the top of the slide bar 241. A return spring 243 is sleeved on the slide bar 241. One end of the return spring 243 is clamped on the slide plate 24, and the other end of the return spring 243 is clamped on the bottom of the top plate 242. The return spring 243 is compressed when the synchronous block 2 rises, storing elastic potential energy. After the ice core is separated, the elastic potential energy is released to push the synchronous block 2 back to its original position, thereby achieving the automatic return of the sampling and cutting plate 22, reducing manual operation and improving sampling efficiency.

[0052] like Figures 1 to 10 As shown, a cross shaft 23 is mounted on the top of the synchronizer block 2, and a plug shaft 231 is mounted on the output end of the drive motor 232. The plug shaft 231 movably penetrates the positioning frame 1 and is movably connected to the cross shaft 23. The plug-in connection between the plug shaft 231 and the cross shaft 23 achieves stable torque transmission between the drive motor 232 and the synchronizer block 2, ensuring that the synchronizer block 2 can rotate as expected, providing power transmission guarantee for subsequent ice core cutting and separation.

[0053] like Figures 1 to 10 As shown, a positioning seat 21 is mounted at the bottom of the synchronization block 2. A positioning shaft 211 is rotatably mounted on the positioning seat 21. The positioning shaft 211 is interconnected with a rocker arm 222. The sampling and cutting plate 22 is curved, with the center of curvature of the sampling and cutting plate 22 coinciding with the positioning shaft 211. Saw teeth 221 are mounted at the end of the sampling and cutting plate 22. The arrangement of the positioning seat 21 and the positioning shaft 211 enables the rocker arm 222 to rotate stably about the positioning shaft 211. The curved sampling and cutting plate 22, in conjunction with the saw teeth 221, increases the cutting area and efficiency while ensuring that the cut ice core has a regular shape, facilitating subsequent research.

[0054] Example 3:

[0055] The difference between the above embodiment and this embodiment is that: Figures 1 to 10 As shown, a slider 321 is mounted on the top of the vertical rod 32, which is slidably connected to the spiral guide rail 3. A fixed plate 322 is mounted on the bottom of the vertical rod 32, on which a protrusion 323 is mounted. A strip groove 331 is formed on the connecting plate 33, and the protrusion 323 slides in the strip groove 331. A limit block 34 is mounted on the side wall of the vertical rod 32, and a limit rod 341 is movably inserted through the limit block 34. A limit seat 342 is mounted on one end of the limit rod 341, and the limit seat 342 is mounted on the synchronization block 2. The slider 321 cooperates with the spiral guide rail 3 to ensure smooth sliding of the vertical rod 32. The cooperation between the protrusion 323 and the strip groove 331 accurately transmits the movement of the vertical rod 32 to the connecting plate 33 and the rocker arm 222. The arrangement of the limit block 34, the limit rod 341, and the limit seat 342 restricts the range of motion of the vertical rod 32, ensuring its accurate motion trajectory and ensuring smooth ice core cutting and separation.

[0056] The present invention also discloses a sampling method of a portable polar sea ice core rapid sampling device, which comprises the following steps:

[0057] Step 1: Move the device to the target ice surface via the universal wheels 111 installed at the bottom of the support legs 11, activate the hydraulic push rod 113, and its piston rod drives the push plate 114 with anti-skid grooves to press against the ice surface, so that the universal wheels 111 are separated from the ice surface and the device is fixed;

[0058] Step 2: Start the driving motor 232, and the plug shaft 231 on its output shaft engages with the cross shaft 23 at the top of the synchronous block 2, driving the synchronous block 2 to rotate; the positioning shaft 211 on the positioning seat 21 at the bottom of the synchronous block 2 drives the rocker arm 222 to rotate, so that the sampling and cutting plate 22 with an arc-shaped end and serrated teeth 221 rotates in a circle on the surface of the ice layer. At the same time, the vertical rod 32 and the slider 321 on the synchronous block 2 slide on the spiral guide rail 3, and the sampling and cutting plate 22 slides along the spiral guide rail 3 and cuts into the ice layer through the cooperation of the protrusion 323 on the side wall of the vertical rod 32 and the strip groove 331 of the connecting plate 33, completing the ice core cutting;

[0059] Step 3: After the upright 32 slides to the arc guide rail 31 whose curvature coincides with the center of the circular plate 12, the thrust of the slope 311 at the end of the arc guide rail 31 is used to drive the synchronous block 2 to move upward through the limit block 34 and the limit rod 341. When the synchronous block 2 moves upward, the positioning seat 21 drives the rocker arm 222 to lift upward, so that the sampling and cutting plate 22 carrying the ice core is separated from the glacier surface;

[0060] Step 4: The driving motor 232 rotates in reverse, and the compressed return spring 243 on the slide bar 241 releases its elastic potential energy, pushing the slide plate 24 and the synchronization block 2 to return downward, so that the sampling cutting plate 22 returns to the initial position, completing an ice core sampling operation.

[0061] The implementation principle of the portable polar sea ice core rapid sampling device of the present invention is as follows:

[0062] The device is moved to the target ice surface location using universal wheels 111 mounted at the bottom of support legs 11. Support legs 11 are arranged symmetrically at four corners, with triangular reinforcement ribs 112 welded between adjacent legs 11 to enhance structural rigidity and resist vibration during sampling. Upon reaching the designated location, hydraulic push rods 113 (SC series cylinders are optional) are activated, and their piston rods drive push plates 114 downward to press against the ice surface. The thrust generated by the hydraulic system lifts the entire positioning frame 1, freeing universal wheels 111 from the ice. The anti-slip grooves on the surface of push plates 114 increase friction with the ice surface, ensuring the device remains stable in low-temperature environments.

[0063] After the driving motor 232 (a low-temperature servo motor with a temperature resistance of -50°C) is started, the plug shaft 231 on the output shaft passes through the reserved hole of the positioning frame 1, and engages with the four-sided structure of the cross shaft 23 on the top of the synchronous block 2, transmitting the torque to the synchronous block 2, and finally causing the synchronous block 2 and the positioning plate 134 to rotate together on the side wall of the slide groove 135 of the side plate 131, and the positioning shaft 211 on the positioning seat 21 at the bottom of the synchronous block 2 drives the rocker arm 222 to rotate around its axis, and the arc-shaped sampling cutting plate 22 at the end of the rocker arm 222 performs a circular motion accordingly. At this time, the sampling cutting plate 22 rotates in a circle on the surface of the ice layer.

[0064] Then, after the synchronous block 2 rotates, the vertical rod 32 and the slider 321 on the synchronous block 2 slide on the spiral guide rail 3, and the spiral guide rail 3 is in a stationary state. Then, with continuous rotation, the vertical rod 32 at this time continues to move away from the rotation center of the synchronous block 2. When the vertical rod 32 moves, the protrusion 323 on the side wall of the vertical rod 32 rotates on the strip groove 331 of the connecting plate 33, thereby driving the connecting plate 33 to have a swinging force and transmitting it to the rocker arm 222. At this time, the rocker arm 222 rotates around the positioning axis 211, and finally the rocker arm 222 drives the sampling cutting plate 22 to slide in an arc toward the ice layer.

[0065] The rotation of the sampling cutting plate 22 and its advancement into the ice create a combined "rotation + cutting" motion. As the two sampling cutting plates 22 gradually come into contact, the ice core is completely cut, and the bottom of the core is separated from the ice layer by the curved trajectory of the sampling cutting plate 22. This eliminates the drawback of traditional drilling machines, which require a second separation of the bottom.

[0066] When the vertical rod 32 slides onto the arc guide rail 31, since the center of curvature of the arc guide rail 31 coincides with the center of the circular plate 12, the vertical rod 32 will continue to move along the arc trajectory as the synchronous block 2 rotates. At this time, the slope 311 at the end of the arc guide rail 31 will generate an upward thrust on the vertical rod 32, and the vertical rod 32 drives the synchronous block 2 to move upward through the limit block 34 and the limit rod 341. When the synchronous block 2 moves upward, the positioning seat 21 drives the rocker arm 222 to lift upward, so that the sampling cutting plate 22 carries the cut ice core away from the glacier surface, completing the overall separation of the ice core. The ingenious design of the arc guide rail and the slope can realize the automatic overall separation of the ice core without manual intervention, reducing the cost of manual operation, while ensuring the consistency and stability of the ice core separation process, further improving the efficiency and success rate of ice core sampling.

[0067] During the separation process, the return spring 243 on the slide bar 241 is compressed. When the synchronizer block 2 rises to the top of the ramp 311, the ice core is completely disconnected from the glacier. At this point, the drive motor 232 rotates in the opposite direction, causing the synchronizer block 2 to begin rotating counterclockwise. The upright 32 slides in opposite directions along the circular guide rail 31 and the spiral guide rail 3. The return spring 243 releases its elastic potential energy, pushing the slide 24 and synchronizer block 2 downward, returning the sampling and cutting plate 22 to its initial position.

Claims

1. A portable polar sea ice core rapid sampling device, comprising a positioning frame (1), characterized in that: A synchronous block (2) is rotatably mounted on the bottom of the positioning frame (1), a driving motor (232) is mounted on the positioning frame (1), and the driving motor (232) is used to drive the synchronous block (2) to rotate, and a pair of rocker arms (222) are rotatably mounted on the bottom of the synchronous block (2), and a sampling cutting plate (22) is mounted at the end of each rocker arm (222), and the sampling cutting plate (22) is arc-shaped; A spiral guide rail (3) is installed at the bottom of the positioning frame (1), and the spiral guide rail (3) is slidably provided with a vertical rod (32) that slides horizontally with the surface of the synchronization block (2). A connecting plate (33) is installed on the rocker arm (222), and the connecting plate (33) is slidably connected to the output end of the vertical rod (32). The vertical rod (32) slides along the spiral guide rail (3) to push the sampling cutting plate (22) toward the surface of the glacier and cut the ice surface, and the cutting is completed when the vertical rod (32) slides to the end of the spiral guide rail (3); The end of the spiral guide rail (3) is provided with an arc guide rail (31), and a slope (311) is provided on the surface of the arc guide rail (31). The vertical rod (32) slides to the slope (311) to pull the synchronous block (2) upward, thereby driving the cut ice core to separate from the glacier, and completing the sampling operation.

2. The portable polar sea ice core rapid sampling device according to claim 1, characterized in that: Support legs (11) are installed at the four corners of the positioning frame (1), universal wheels (111) are installed at the bottom of the support legs (11), reinforcing ribs (112) are installed between adjacent support legs (11), hydraulic push rods (113) are vertically installed on the side walls of the support legs (11), and a push plate (114) is installed at the output end of the hydraulic push rod (113). The hydraulic push rod (113) is used to lift the positioning frame (1) to ensure the stability of the positioning frame (1).

3. The portable polar sea ice core rapid sampling device according to claim 1, characterized in that: A circular plate (12) is fixedly mounted on the bottom of the positioning frame (1), a connecting frame (121) is mounted on the circular plate (12), the connecting frame (121) is L-shaped, the connecting frame (121) is overlapped above the positioning frame (1), the connecting frame (121) and the positioning frame (1) are screwed together by bolts, the bottom of the circular plate (12) is connected to the spiral guide rail (3) and the circular arc guide rail (31), and the curvature center of the circular arc guide rail (31) coincides with the center of the circular plate (12).

4. The portable polar sea ice core rapid sampling device according to claim 1, characterized in that: The bottom of the positioning frame (1) is provided with a mounting plate (132), the bottom of the mounting plate (132) is provided with a vertical plate (13), the vertical plate (13) and the mounting plate (132) form a T shape, a reinforcing plate (133) is provided at the connection between the vertical plate (13) and the mounting plate (132), and the reinforcing plate (133) is triangular, the side wall of the vertical plate (13) is provided with a side plate (131), a sliding groove (135) is provided on the side plate (131), a positioning plate (134) is slidably provided inside the sliding groove (135), the positioning plate (134) is slidably connected to the synchronization block (2), a notch (332) is provided on the positioning plate (134), and the connecting plate (33) passes through the notch (332).

5. The portable polar sea ice core rapid sampling device according to claim 4, characterized in that: A through slot (251) is provided inside the positioning plate (134), and the synchronization block (2) is inserted into the through slot (251). The synchronization block (2) is inserted into the through slot (251), and the synchronization block (2) and the through slot (251) are adapted to each other, and both the synchronization block (2) and the through slot (251) are rectangular. A limiting plate (25) is installed at the bottom of the through slot (251), and the bottom of the synchronization block (2) is overlapped on the limiting plate (25).

6. The portable polar sea ice core rapid sampling device according to claim 4, characterized in that: A slide bar (241) is mounted on the positioning plate (134), a slide plate (24) is slidably mounted on the slide bar (241), the slide plate (24) is connected to the surface of the synchronization block (2), a top plate (242) is mounted on the top of the slide bar (241), a return spring (243) is sleeved on the slide bar (241), one end of the return spring (243) is clamped on the slide plate (24), and the other end of the return spring (243) is clamped on the bottom of the top plate (242).

7. The portable polar sea ice core rapid sampling device according to claim 1, characterized in that: A cross shaft (23) is installed on the top of the synchronization block (2), an insertion shaft (231) is installed on the output end of the drive motor (232), and the insertion shaft (231) movably penetrates the positioning frame (1), and the insertion shaft (231) is movably plugged into the cross shaft (23).

8. The portable polar sea ice core rapid sampling device according to claim 1, characterized in that: A positioning seat (21) is installed at the bottom of the synchronization block (2), a positioning shaft (211) is rotatably installed on the positioning seat (21), the positioning shaft (211) and the rocker arm (222) are connected to each other, the sampling cutting plate (22) is arc-shaped, and the curvature center of the sampling cutting plate (22) coincides with the positioning shaft (211), and a sawtooth (221) is installed at the end of the sampling cutting plate (22).

9. The portable polar sea ice core rapid sampling device according to claim 1, characterized in that: A slider (321) is installed on the top of the vertical rod (32), and the slider (321) is slidably connected to the spiral guide rail (3). A fixed plate (322) is installed on the bottom of the vertical rod (32), and a protrusion (323) is installed on the fixed plate (322). A strip groove (331) is opened on the connecting plate (33), and the protrusion (323) is slidably set on the strip groove (331). A limiting block (34) is installed on the side wall of the vertical rod (32), and a limiting rod (341) is movably inserted and inserted on the limiting block (34). A limiting seat (342) is installed on one end of the limiting rod (341), and the limiting seat (342) is installed on the synchronization block (2).

10. A portable polar sea ice core rapid sampling method, characterized in that: The portable polar sea ice core rapid sampling device according to any one of claims 1 to 9 is applied to a sampling method of the portable polar sea ice core rapid sampling device, comprising the following steps: Step 1: Move the device to the target ice surface through the universal wheel (111) installed at the bottom of the support leg (11), start the hydraulic push rod (113), and its piston rod drives the push plate (114) with anti-skid grooves to press the ice surface, so that the universal wheel (111) is separated from the ice surface and the device is fixed; Step 2: Start the driving motor (232), and the plug shaft (231) on the output shaft thereof engages with the cross shaft (23) at the top of the synchronous block (2), driving the synchronous block (2) to rotate; the positioning shaft (211) on the positioning seat (21) at the bottom of the synchronous block (2) drives the rocker arm (222) to rotate, so that the sampling and cutting plate (22) with an arc-shaped end and serrated teeth (221) rotates in a circle on the surface of the ice layer; at the same time, the vertical rod (32) and the slider (321) on the synchronous block (2) slide on the spiral guide rail (3), and through the cooperation between the side wall protrusion (323) of the vertical rod (32) and the strip groove (331) of the connecting plate (33), the sampling and cutting plate (22) slides along the spiral guide rail (3) and cuts into the ice layer, completing ice core cutting; Step 3: After the vertical rod (32) slides to the arc guide rail (31) whose curvature coincides with the center of the circular plate (12), the thrust of the slope (311) at the end of the arc guide rail (31) is used to drive the synchronous block (2) to move upward through the limit block (34) and the limit rod (341). When the synchronous block (2) moves upward, the positioning seat (21) drives the rocker arm (222) to lift upward, so that the sampling cutting plate (22) carries the ice core away from the glacier surface; Step 4: The driving motor (232) is reversed, and the compressed return spring (243) on the slide bar (241) releases elastic potential energy, pushing the slide plate (24) and the synchronization block (2) to reset downward, so that the sampling cutting plate (22) returns to the initial position, completing an ice core sampling operation.

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