An automatic light-avoiding sampling device for field optical dating samples

Abstract

The application discloses a kind of field photoluminescence dating sample automatic light-avoiding sampling device, it is related to photoluminescence dating sample sampling field, including support mechanism, benchmark platform and installation platform, still including linear drive mechanism, sampling and light-avoiding mechanism, leveling bolt and collection mechanism, the benchmark platform and installation platform are sequentially fixed from bottom to top on the top of the support mechanism, the fixed part of the linear drive mechanism is installed on the installation platform.The application eliminates the possibility that sample is exposed to ambient light during the collection process through the cooperative work of linear drive mechanism, sampling and light-avoiding mechanism and collection mechanism, thereby ensuring the originality of dating signal and the accuracy of data, solves the fundamental problem that traditional manual sampling light-avoiding is unreliable.

Description

Technical Field

[0001] This invention relates to optically stimulated luminescence (OSL) dating sample collection technology, specifically to an automatic light-shielding sampling device for field OSL dating samples. Background Technology

[0002] Currently, the field collection of optically stimulated luminescence (OSL) dating samples mainly relies on manual operation. The standard procedure is as follows: a fresh profile is excavated at the sampling point. At dusk, night, or in a temporary dark environment created using a light-blocking cloth, the operator manually or with a hammer drives a stainless steel or plastic tube (sampling tube) with open ends into the stratum. After the tube is fully driven in, both ends are quickly sealed with opaque tape or plugs. The entire sample tube is then removed from the stratum and placed in an opaque bag. This sampling method suffers from poor reliability in avoiding light: the risk of the sample being briefly exposed to ambient light before sealing the ends is extremely high, especially in complex terrain or under poor light control conditions, which may cause the sample signal to be reset, rendering the dating results invalid. The entire light-blocking process depends on manual speed and the light-blocking cloth, and is subject to great uncertainty and randomness.

[0003] To address the problems raised in the background art, those skilled in the art have proposed an automatic light-avoidance sampling device for field optically stimulated luminescence dating samples. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic light-avoidance sampling device for field optically stimulated luminescence (OSL) dating samples, in order to solve the problems of poor light avoidance reliability and easy resetting of dating signals during field sampling of OSL dating samples in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic light-shielding sampling device for field optically stimulated luminescence (OSL) dating samples, comprising a support mechanism, a reference platform, and an installation platform, further comprising a linear drive mechanism, a sampling and light-shielding mechanism, a leveling bolt, and a collection mechanism. The reference platform and the installation platform are fixedly installed on the top of the support mechanism from bottom to top. The fixed part of the linear drive mechanism is installed on the installation platform. The sampling and light-shielding mechanism is installed on the movable part of the linear drive mechanism and is driven by it to move. The sampling and light-shielding mechanism includes an outer tube for drilling and accommodating the sample and a light-shielding component disposed on the outer tube for shielding external light during lifting and lowering. The collection mechanism is installed on the reference platform and located below the sampling and light-shielding mechanism. The leveling bolt is located between the reference platform and the installation platform for adjusting the level of the reference platform. The reference platform has a first through slot for installing the collection mechanism, and the installation platform has a second through slot for installing the sampling and light-shielding mechanism.

[0006] Further, the support mechanism includes a first support leg, a second support leg, a threaded sleeve, a first tightening bolt, a mounting block, a second tightening bolt, a positioning block, a mounting base plate, a fixing rod, and a fixing ring tooth. The first support leg and the second support leg are slidably connected. The threaded sleeve is located at the top of the first support leg, the mounting block is located at the bottom of the mounting platform, and the threaded sleeve is located on the side of the mounting block. The threaded sleeve and the mounting block are rotatably connected. A first tightening bolt is provided on the side of the mounting block away from the threaded sleeve. The first tightening bolt is used to fix the position of the threaded sleeve. The threaded sleeve is threadedly connected to the first support leg. The positioning block is located at the bottom of the second support leg and is slidably connected to the second support leg. The second tightening bolt is located on the side of the second support leg and is used to fix the position of the positioning block at the bottom inside the second support leg. The mounting base plate is located on the outside of the bottom of the positioning block. The fixing rod is located at the bottom of the positioning block, and the fixing ring tooth is located at the bottom of the mounting base plate.

[0007] Furthermore, the linear drive mechanism includes a mounting base plate, a hydraulic push rod, a mounting frame, a guide groove, a guide rod, and a limiting block. The mounting base plate is located at the top of the mounting platform, the hydraulic push rod is located on the side of the mounting base plate, the mounting frame is located at the output end of the hydraulic push rod, the guide groove is opened at the top of the mounting platform, the guide rod is located inside the guide groove, the limiting block is located at the end of the guide rod, and the mounting frame is slidably connected to the guide rod.

[0008] Furthermore, the sampling and light-shielding mechanism also includes a central fixing tube, a sampling tube, a sealing plate, a pushing and cutting blade, a drive assembly, a fixing seat, a mounting collar, and a sample cutting assembly. The outer tube is located on the side of the mounting frame away from the hydraulic push rod. The central fixing tube is located inside the outer tube. The fixing seat is located at the inner end of the outer tube. The sampling tube is located inside the central fixing tube. An installation groove is provided at the end of the outer tube away from the mounting frame. The sealing plate is located in the installation groove at the end of the outer tube away from the mounting frame. The pushing and cutting blade is located at the end of the outer tube away from the mounting frame. The mounting collar is fixedly sleeved on the central fixing tube.

[0009] Furthermore, the central fixing tube includes a fixing collar, a threaded fixing sleeve, and a third electric push rod. The fixing collar is located inside the central fixing tube and is slidably connected to the central fixing tube. The threaded fixing sleeve is located on the side of the fixing collar closer to the sampling tube. The threaded fixing sleeve is fixedly connected to the fixing collar and threadedly connected to the end of the sampling tube. The third electric push rod is located on the side of the fixing collar away from the threaded fixing sleeve, and the other end of the third electric push rod is fixedly connected to the fixing seat.

[0010] Furthermore, the light-shielding assembly includes a first light-shielding plate and a second light-shielding plate. The first light-shielding plate is located at the end of the middle fixed tube away from the fixed seat, and the second light-shielding plate is located in the mounting groove at the end of the outer sleeve away from the mounting frame. Both the first and second light-shielding plates are rotated by a drive assembly to achieve light blocking. The drive assembly includes a drive motor, a drive gear, a driven gear, and a connecting rod. The drive motor in the drive assembly of the first light-shielding plate is mounted on the surface of the mounting collar, and the drive motor in the drive assembly of the second light-shielding plate is mounted in the mounting groove. The drive gear is fixedly connected to the output end of the drive motor, the driven gear is located on the side of the drive gear and meshes with the drive gear, and the connecting rod is located between the light-shielding plate and the driven gear to transmit force to the light-shielding plate, thereby enabling the drive motor to drive the light-shielding plate to rotate.

[0011] Furthermore, the sample slitting assembly includes a mounting arc plate, a fourth electric push rod, a movable sealing plate, a sliding groove, an arc-shaped slot, a cutting ring, a piston, and a fifth electric push rod. The mounting arc plate is located inside the outer tube, and its top is fixedly connected to the outer wall of the middle fixed tube for supporting the middle fixed tube. The fourth electric push rod is located on the side of the mounting arc plate, and the movable sealing plate is located at the output end of the fourth electric push rod. The sliding groove is formed on the inner wall of the outer tube, and the movable sealing plate is slidably connected to the sliding groove. The arc-shaped slot is formed on the side of the outer tube. The movable sealing plate is sized to match the size of the arc-shaped slot. The movable sealing plate seals the arc-shaped slot via a fourth electric push rod to prevent light leakage. The cutting ring is located on the other side of the first light-shielding plate. The cutting ring is also equipped with a drive assembly. The drive motor in the drive assembly of the cutting ring is mounted on the surface of the mounting ring. The cutting ring is used to cut the optically stimulated luminescence (OSL) dating sample. The piston is located inside the sampling tube and is slidably connected to the inner wall of the sampling tube. The fifth electric push rod is located on the side of the piston near the fixed seat.

[0012] Furthermore, the collection mechanism includes a mounting plate, a first electric push rod, a light-shielding collection chamber, a collection cavity, a hanging rod, an adhesive silicone pad, a heat-sealing plate, and a second electric push rod. The mounting plate is located within and fixedly connected to the first through groove. The first electric push rod is located on the upper surface of the mounting plate. The light-shielding collection chamber is located at the top of the first electric push rod. The top of the light-shielding collection chamber is arc-shaped, and the arc of the top of the light-shielding collection chamber matches the arc of the outer sleeve. A sealing gasket is provided at the top of the light-shielding collection chamber. The position of the light-shielding collection chamber corresponds to the position of the arc-shaped slot. The collection cavity is located inside the light-shielding collection chamber. The hanging rod is located on the inner wall of the collection cavity. An adhesive silicone pad is provided on the surface of the hanging rod. Two heat-sealing plates are provided inside the collection cavity, and the two heat-sealing plates are arranged opposite each other. A second electric push rod is provided between each of the two heat-sealing plates and the inner wall of the collection cavity. The second electric push rod is used to drive the heat-sealing plate to perform heat-sealing on the sample bag placed at the sample outlet.

[0013] Compared with existing technologies, the automatic light-avoidance sampling device for field optically stimulated luminescence dating provided by this invention has the following beneficial effects:

[0014] 1. Loosen the first tightening bolt to release the threaded sleeve, then connect each of the first support legs to the threaded sleeve and adjust the angle of each support leg. After the angle is adjusted, tighten the first tightening bolt to fix the threaded sleeve and lock the angle of each support leg. Then loosen the second tightening bolt to allow the positioning block to slide inside the second support leg, so that the fixing rod and fixing ring teeth contact the ground. Then tighten the second tightening bolt to fix the position of the positioning block. Then insert the fixing ring teeth and fixing rod into the ground to stabilize the entire device. Then level the reference platform with the leveling bolt to ensure the vertical drilling of the subsequent sampling drill rod and avoid sample column distortion or depth calculation errors due to tilting.

[0015] 2. The hydraulic push rod drives the mounting frame and sampling and light-shielding mechanism back to their initial positions. Then, the sampling tube passes through the sealing plate, outer sleeve, and middle fixed tube, so that the bottom of the sampling tube is threadedly connected to the threaded fixing sleeve inside the middle fixed tube, and the piston is positioned inside the sampling tube. Then, the third electric push rod drives the fixed collar to move, thereby moving the sampling tube until it is completely submerged in the middle fixed tube. Then, the drive assembly drives the first and second light-shielding plates to seal and shield the holes in the mounting groove and the middle fixed tube. The specific working process of the drive assembly is as follows: the drive motor drives the drive gear to rotate, the drive gear rotates to rotate the driven gear, the driven gear rotates to rotate the connecting rod, and the connecting rod rotates to rotate the first or second light-shielding plate. After the light-shielding plate completes its light-shielding function, the fourth electric push rod pushes the movable sealing plate to slide in the groove, thereby sealing and shielding the arc-shaped slot, thus realizing the light-shielding and light-shielding work of the entire sampling and light-shielding mechanism.

[0016] 3. The first light-shielding plate is opened by the drive assembly, and then the fourth electric push rod drives the movable sealing plate to slide in the groove, so that the movable sealing plate releases the blockage of the arc-shaped empty groove. Then the fifth electric push rod pushes the piston to move, so that the piston pushes out the sample in the sampling tube. At this time, the drive assembly drives the cutting ring to rotate, thereby cutting the sample.

[0017] 4. By placing the light-proof sample bag into the collection chamber using a hanging rod and an adhesive silicone pad, the first electric push rod moves the light-proof collection chamber, bringing its top into contact with the outer wall of the outer sleeve. The arc-shaped groove is then sealed with a sealing gasket. After the light-proof sample bag receives the sample cut from the sample cutting component, the second electric push rod pushes the heat-sealing plate to heat-seal the light-proof sample bag. After heat-sealing, the first electric push rod moves the light-proof collection chamber, exposing it. The light-proof sample bag is then removed, and a new one is hung on top. This process can be repeated to prevent accidental exposure of the sample during the dispensing process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention in use.

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention in its idle state;

[0021] Figure 3 This is a schematic diagram of the overall structure of the support mechanism in this invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 For the present invention Figure 3 Enlarged view at point B in the middle;

[0024] Figure 6 This is a schematic diagram of the overall structure of the sampling and light-shielding mechanism in this invention;

[0025] Figure 7 This is a cross-sectional view of the sampling and light-shielding mechanism in this invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged view at point C;

[0027] Figure 9 For the present invention Figure 8 Enlarged view of point D in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Support mechanism; 11. First support leg; 12. Second support leg; 13. Threaded sleeve; 14. First tightening bolt; 15. Mounting block; 16. Second tightening bolt; 17. Positioning block; 18. Mounting base plate; 19. Fixing rod; 110. Fixing ring tooth; 2. Reference platform; 21. First through slot; 3. Mounting platform; 31. Second through slot; 4. Collection mechanism; 41. Mounting plate; 42. First electric push rod; 43. Light-shielding collection chamber; 44. Collection cavity; 45. Hanging rod; 46. Adhesive silicone pad; 47. Heat-sealing plate; 48. Second electric push rod; 5. Sampling and light-shielding mechanism; 51. Outer sleeve; 52. Middle fixing tube; 521. Fixing collar; 522. Threaded fixing sleeve; 52 3. Third electric push rod; 53. Sampling tube; 54. Sealing plate; 55. First light shield; 56. Second light shield; 57. Cutting ring; 58. Drive assembly; 581. Drive motor; 582. Drive gear; 583. Driven gear; 584. Connecting rod; 59. Fixed seat; 510. Mounting collar; 511. Mounting arc plate; 512. Fourth electric push rod; 513. Moving sealing plate; 514. Slide groove; 515. Arc-shaped slot; 516. Push cutting blade; 517. Piston; 518. Fifth electric push rod; 6. Linear drive mechanism; 61. Mounting base plate; 62. Hydraulic push rod; 63. Mounting frame; 64. Guide groove; 65. Guide rod; 66. Limiting block; 7. Leveling bolt. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] As attached Figure 1 To be continued Figure 9 As shown:

[0032] Example 1:

[0033] This invention provides an automatic light-shielding sampling device for field optically stimulated luminescence (OSL) dating samples, comprising a support mechanism 1, a reference platform 2, and an installation platform 3, as well as a linear drive mechanism 6, a sampling and light-shielding mechanism 5, a leveling bolt 7, and a collection mechanism 4. The reference platform 2 and the installation platform 3 are fixedly installed on the top of the support mechanism 1 from bottom to top. The fixed part of the linear drive mechanism 6 is installed on the installation platform 3. The sampling and light-shielding mechanism 5 is installed on the movable part of the linear drive mechanism 6 and is driven by it to move. The sampling and light-shielding mechanism 5 includes an outer tube 51 for drilling and accommodating the sample and a light-shielding component disposed on the outer tube 51 for shielding external light during lifting and lowering. The collection mechanism 4 is installed on the reference platform 2 and located below the sampling and light-shielding mechanism 5. The leveling bolt 7 is located between the reference platform 2 and the installation platform 3 and is used to adjust the level of the reference platform 2. The reference platform 2 is provided with a first through groove 21 for the installation of the collection mechanism 4. The installation platform 3 is provided with a second through groove 31 for the installation of the sampling and light-shielding mechanism 5.

[0034] The support mechanism 1 includes a first support leg 11, a second support leg 12, a threaded sleeve 13, a first tightening bolt 14, a mounting block 15, a second tightening bolt 16, a positioning block 17, a mounting base plate 18, a fixing rod 19, and a fixing ring tooth 110. The first support leg 11 and the second support leg 12 are slidably connected. The threaded sleeve 13 is located at the top of the first support leg 11, and the mounting block 15 is located at the bottom of the mounting platform 3, with the threaded sleeve 13 located on the side of the mounting block 15. The threaded sleeve 13 and the mounting block 15 are rotatably connected. A [feature / feature] is provided on the side of the mounting block 15 away from the threaded sleeve 13. The first tightening bolt 14 is used to fix the position of the threaded sleeve 13, which is threadedly connected to the first support leg 11. The positioning block 17 is located at the bottom of the second support leg 12 and is slidably connected to the second support leg 12. The second tightening bolt 16 is located on the side of the second support leg 12 and is used to fix the position of the positioning block 17 at the bottom inside the second support leg 12. The mounting base plate 18 is located on the outside of the bottom of the positioning block 17. The fixing rod 19 is located at the bottom of the positioning block 17. The fixing ring tooth 110 is located at the bottom of the mounting base plate 18.

[0035] Working principle: By loosening the first tightening bolt 14, the threaded sleeve 13 is released from its fixed position. Then, each of the first support legs 11 is threadedly connected to the threaded sleeve 13, and the angle of each support leg is adjusted. After the angle is adjusted, the first tightening bolt 14 is tightened to fix the threaded sleeve 13 and lock the angle of each support leg. Then, the second tightening bolt 16 is loosened to allow the positioning block 17 to slide inside the second support leg 12, so that the fixing ring teeth 110 of the fixing rod 19 contact the ground. Then, the second tightening bolt 16 is tightened to fix the position of the positioning block 17. Then, the fixing ring teeth 110 and the fixing rod 19 are inserted into the ground to stabilize the entire device. Then, the reference platform 2 is leveled by the leveling bolt 7 to ensure the vertical drilling of the subsequent sampling drill rod and avoid sample column distortion or depth calculation errors due to tilting.

[0036] Example 2:

[0037] This embodiment is basically the same as the previous embodiment, except that the linear drive mechanism 6 includes a mounting base plate 61, a hydraulic push rod 62, a mounting frame 63, a guide groove 64, a guide rod 65, and a limiting block 66. The mounting base plate 61 is located on the top of the mounting platform 3, the hydraulic push rod 62 is located on the side of the mounting base plate 61, the mounting frame 63 is located at the output end of the hydraulic push rod 62, the guide groove 64 is opened on the top of the mounting platform 3, the guide rod 65 is located inside the guide groove 64, the limiting block 66 is located at the end of the guide rod 65, and the mounting frame 63 is slidably connected to the guide rod 65.

[0038] During operation, the hydraulic push rod 62 pushes the mounting frame 63 to move, causing the mounting frame 63 to move along the guide rod 65, which in turn drives the sampling and light-shielding mechanism 5 to move.

[0039] In one embodiment of the present invention, the sampling and light-shielding mechanism 5 further includes a central fixing tube 52, a sampling tube 53, a sealing plate 54, a pushing cutter 516, a drive assembly 58, a fixing seat 59, a mounting collar 510, and a sample cutting assembly. The outer tube 51 is located on the side of the mounting frame 63 away from the hydraulic push rod 62. The central fixing tube 52 is located inside the outer tube 51. The fixing seat 59 is located at the inner end of the outer tube 51. The sampling tube 53 is located inside the central fixing tube 52. An installation groove is formed at the end of the outer tube 51 away from the mounting frame 63. The sealing plate 54 is located in the installation groove at the end of the outer tube 51 away from the mounting frame 63. The pushing cutter 516 is located at the end of the outer tube 51 away from the mounting frame 63. At one end of the mounting frame 63, a mounting collar 510 is fixedly sleeved on the middle fixing tube 52. The middle fixing tube 52 includes a fixing collar 521, a threaded fixing sleeve 522, and a third electric push rod 523. The fixing collar 521 is located inside the middle fixing tube 52 and is slidably connected to the middle fixing tube 52. The threaded fixing sleeve 522 is located on the side of the fixing collar 521 closer to the sampling tube 53. The threaded fixing sleeve 522 is fixedly connected to the fixing collar 521 and threadedly connected to the end of the sampling tube 53. The third electric push rod 523 is located on the side of the fixing collar 521 away from the threaded fixing sleeve 522, and the other end of the third electric push rod 523 is fixedly connected to the fixing seat 59.

[0040] In one embodiment of the present invention, the light-blocking assembly includes a first light-blocking plate 55 and a second light-blocking plate 56. The first light-blocking plate 55 is located at the end of the central fixing tube 52 away from the fixing seat 59, and the second light-blocking plate 56 is located in the mounting groove at the end of the outer sleeve tube 51 away from the mounting frame 63. Both the first light-blocking plate 55 and the second light-blocking plate 56 are rotated by a drive assembly 58 to achieve light blocking. The drive assembly 58 includes a drive motor 581, a driving gear 582, a driven gear 583, and a connecting rod 584. The first light-blocking plate 55... The drive motor 581 in the drive assembly 58 is mounted on the surface of the mounting collar 510. The drive motor 581 in the drive assembly 58 of the second light shield 56 is mounted in the mounting groove. The drive gear 582 is fixedly connected to the output end of the drive motor 581. The driven gear 583 is located on the side of the drive gear 582 and meshes with the drive gear 582. The connecting rod 584 is located between the light shield and the driven gear 583 and is used to transmit force to the light shield, so that the drive motor 581 can drive the light shield to rotate.

[0041] During operation, the hydraulic push rod 62 drives the mounting frame 63 and the sampling and light-shielding mechanism 5 back to their initial positions. Then, the sampling tube 53 passes through the sealing plate 54, the outer sleeve 51, and the middle fixing tube 52, so that the bottom of the sampling tube 53 is threadedly connected to the threaded fixing sleeve 522 inside the middle fixing tube 52, and the piston 517 is located inside the sampling tube 53. Then, the third electric push rod 523 drives the fixing collar 521 to move, thereby driving the sampling tube 53 to move, so that the sampling tube 53 is completely submerged in the middle fixing tube 52. Then, the drive assembly 58 drives the first light-shielding plate 55 and the second light-shielding plate 56 to install... The holes in the groove and the central fixed tube 52 are sealed and blocked to block light. The specific working process of the drive component 58 is as follows: the drive motor 581 drives the active gear 582 to rotate, the active gear 582 drives the driven gear 583 to rotate, the driven gear 583 drives the connecting rod 584 to rotate, the connecting rod 584 drives the first light-blocking plate 55 or the second light-blocking plate 56 to rotate. After the light-blocking plate has completed the light blocking, the fourth electric push rod 512 pushes the movable sealing plate 513 to slide in the slide groove 514, thereby making the movable sealing plate 513 block and block the arc-shaped empty groove 515 to achieve the light blocking and light avoidance work of the entire sampling and light blocking mechanism.

[0042] In one embodiment of the present invention, the sample cutting assembly includes a mounting arc plate 511, a fourth electric push rod 512, a movable sealing plate 513, a sliding groove 514, an arc-shaped slot 515, a cutting ring 57, a piston 517, and a fifth electric push rod 518. The mounting arc plate 511 is located inside the outer sleeve 51, and the top of the mounting arc plate 511 is fixedly connected to the outer wall of the middle fixed tube 52 for supporting the middle fixed tube 52. The fourth electric push rod 512 is located on the side of the mounting arc plate 511, the movable sealing plate 513 is located at the output end of the fourth electric push rod 512, the sliding groove 514 is formed on the inner wall of the outer sleeve 51, and the movable sealing plate 513 is slidably connected to the sliding groove 514. The arc-shaped slot 514 is formed on the inner wall of the outer sleeve 51. 5 is opened on the side wall of the outer sleeve 51. The size of the movable sealing plate 513 matches the size of the arc-shaped slot 515. The movable sealing plate 513 seals the arc-shaped slot 515 through the fourth electric push rod 512 to prevent light leakage. The cutting ring 57 is located on the other side of the first light-shielding plate 55. The cutting ring 57 is also equipped with a drive assembly 58. The drive motor 581 in the drive assembly 58 of the cutting ring 57 is installed on the surface of the mounting ring 510. The cutting ring 57 is used to cut the optically stimulated luminescence dating sample. The piston 517 is located inside the sampling tube 53 and is slidably connected to the inner wall of the sampling tube 53. The fifth electric push rod 518 is located on the side of the piston 517 near the fixed seat 59.

[0043] During operation, the first light-shielding plate 55 is opened by the drive assembly 58, and then the fourth electric push rod 512 drives the movable sealing plate 513 to slide in the slide groove 514, so that the movable sealing plate 513 releases the blockage of the arc-shaped empty groove 515. Then, the fifth electric push rod 518 pushes the piston 517 to move, so that the piston 517 pushes the sample in the sampling tube 53 out. At this time, the drive assembly 58 drives the cutting ring 57 to rotate, thereby cutting the sample.

[0044] Working principle: The hydraulic push rod 62 drives the mounting frame 63 and the sampling and light-shielding mechanism 5 back to their initial positions. Then, the sampling tube 53 passes through the sealing plate 54, the outer sleeve 51, and the middle fixing tube 52, so that the bottom of the sampling tube 53 is threadedly connected to the threaded fixing sleeve 522 inside the middle fixing tube 52, and the piston 517 is located inside the sampling tube 53. Then, the third electric push rod 523 drives the fixing collar 521 to move, thereby driving the sampling tube 53 to move, so that the sampling tube 53 is completely submerged in the middle fixing tube 52. Then, the drive assembly 58 drives the first light-shielding plate 55 and the second light-shielding plate 56 to install... The holes in the groove and the central fixed tube 52 are sealed and blocked to block light. The specific working process of the drive component 58 is as follows: the drive motor 581 drives the active gear 582 to rotate, the active gear 582 rotates and drives the driven gear 583 to rotate, the driven gear 583 rotates and drives the connecting rod 584 to rotate, the connecting rod 584 rotates and drives the first light-blocking plate 55 or the second light-blocking plate 56 to rotate. After the light-blocking plate has completed the light blocking, the fourth electric push rod 512 pushes the movable sealing plate 513 to slide in the slide groove 514, thereby making the movable sealing plate 513 block and block the arc-shaped empty groove 515 to achieve the light blocking and light avoidance work of the entire sampling and light blocking mechanism.

[0045] After the shading work is completed, the hydraulic push rod 62 pushes the mounting frame 63 to move, causing the mounting frame 63 to move along the guide rod 65, which in turn moves the outer sleeve 51. The outer sleeve 51 enters the soil of the sampling area through the push-cutting blade 516. After the head of the outer sleeve 51 is completely inside the sampling area, the drive assembly 58 opens the first shading plate 55 and the second shading plate 56. The third electric push rod 523 drives the fixing collar 521 to move, which in turn moves the sampling tube 53, allowing it to extend and sample the optically stimulated luminescence dating sample. After the sampling work is completed, the third electric push rod 523 drives the fixing collar 521 to move, which in turn moves the sampling tube 53, so that the sampling tube 53 is completely submerged in the middle fixing tube 52. Then, the drive assembly 58 re-activates the first shading plate 55 and the second shading plate 56 to block light and prevent light from entering. The sample is placed inside the sampling and light-shielding device. Then, the hydraulic push rod 62 drives the outer tube 51 back to its original position, so that the collection mechanism 4 is located below the outer tube 51 and the arc-shaped slot 515 is sealed and light-shielded. Then, the drive assembly 58 opens the first light-shielding plate 55. Then, the fourth electric push rod 512 drives the movable sealing plate 513 to slide in the slide groove 514, so that the movable sealing plate 513 releases the seal of the arc-shaped slot 515. Then, the fifth electric push rod 518 pushes the piston 517 to move, so that the piston 517 pushes the sample out of the sampling tube 53. At this time, the drive assembly 58 drives the cutting ring 57 to rotate, thereby cutting the sample. After the cutting ring 57 cuts, it does not return to its original position. The sample enters the collection mechanism 4 through the arc-shaped slot 515 for packaging and removal. The collection mechanism 4 is raised and lowered repeatedly, and the sample is cut and packaged by the cutting ring 57 to ensure that the optically stimulated luminescence dating sample is in a completely light-shielded environment at each step.

[0046] Example 3:

[0047] This embodiment is basically the same as the previous embodiment, except that the collection mechanism 4 includes a mounting plate 41, a first electric push rod 42, a light-shielding collection chamber 43, a collection cavity 44, a hanging rod 45, an adhesive silicone pad 46, a heat-sealing plate 47, and a second electric push rod 48. The mounting plate 41 is located inside the first through groove 21 and is fixedly connected to the first through groove 21. The first electric push rod 42 is located on the upper surface of the mounting plate 41, and the light-shielding collection chamber 43 is located on top of the first electric push rod 42. The top of the light-shielding collection chamber 43 is arc-shaped, and the arc of the top of the light-shielding collection chamber 43 coincides with the arc of the outer sleeve 51. The light-proof collection chamber 43 is matched, and a sealing gasket is provided on the top of the light-proof collection chamber 43. The position of the light-proof collection chamber 43 corresponds to the position of the arc-shaped slot 515. The collection cavity 44 is located inside the light-proof collection chamber 43. The hanging rod 45 is located on the inner wall of the collection cavity 44. An adhesive silicone pad 46 is provided on the surface of the hanging rod 45. Two heat-sealing plates 47 are provided in the collection cavity 44. The two heat-sealing plates 47 are arranged opposite each other, and a second electric push rod 48 is provided between the two heat-sealing plates 47 and the inner wall of the collection cavity 44. The second electric push rod 48 is used to drive the heat-sealing plates 47 to perform heat-press sealing on the sample bag placed at the sample outlet.

[0048] Working principle: The light-proof sample bag is placed in the collection chamber 44 via the hanging rod 45 and the adhesive silicone pad 46. Then, the first electric push rod 42 pushes the light-proof collection chamber 43 to move, so that the top of the light-proof collection chamber 43 contacts the outer wall of the outer sleeve 51, and the arc-shaped groove 515 is sealed by the sealing gasket. After the light-proof sample bag receives the sample cut from the sample cutting component, the second electric push rod 48 pushes the heat sealing plate 47 to heat seal the light-proof sample bag. After heat sealing, the first electric push rod 42 drives the light-proof collection chamber 43 to move, exposing the collection chamber 44. Then, the light-proof sample bag is taken out and a new light-proof sample bag is hung. The operation can be repeated to avoid accidental exposure of the sample during the dispensing process.

[0049] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic light-shielding sampling device for field optically stimulated luminescence dating, comprising a support mechanism (1), a reference platform (2), and an installation platform (3), characterized in that, It also includes a linear drive mechanism (6), a sampling and light-shielding mechanism (5), a leveling bolt (7), and a collection mechanism (4). The reference platform (2) and the mounting platform (3) are fixedly installed on the top of the support mechanism (1) from bottom to top. The fixed part of the linear drive mechanism (6) is installed on the mounting platform (3). The sampling and light-shielding mechanism (5) is installed on the movable part of the linear drive mechanism (6) and is driven by it to move. The sampling and light-shielding mechanism (5) includes an outer sleeve (51) for drilling and accommodating samples and a collection mechanism (4) disposed on the outer sleeve. The sleeve (51) has a light-shielding component for shielding external light during lifting. The collection mechanism (4) is installed on the reference platform (2) and located below the sampling and light-shielding mechanism (5). The leveling bolt (7) is located between the reference platform (2) and the installation platform (3) for adjusting the level of the reference platform (2). The reference platform (2) is provided with a first through groove (21) for the collection mechanism (4) to be installed. The installation platform (3) is provided with a second through groove (31) for the sampling and light-shielding mechanism (5) to be installed.

2. The automatic light-shielding sampling device for field optically stimulated luminescence dating according to claim 1, characterized in that, The support mechanism (1) includes a first support leg (11), a second support leg (12), a threaded sleeve (13), a first tightening bolt (14), a mounting block (15), a second tightening bolt (16), a positioning block (17), a mounting base plate (18), a fixing rod (19), and a fixing ring tooth (110). The first support leg (11) and the second support leg (12) are slidably connected. The threaded sleeve (13) is located at the top of the first support leg (11). The mounting block (15) is located at the bottom of the mounting platform (3), and the threaded sleeve (13) is located on the side of the mounting block (15). The threaded sleeve (13) and the mounting block (15) are rotatably connected. The side of the mounting block (15) away from the threaded sleeve (13) is provided. There is a first tightening bolt (14), which is used to fix the position of the threaded sleeve (13). The threaded sleeve (13) is threadedly connected to the first support leg (11). The positioning block (17) is located at the bottom of the second support leg (12). The positioning block (17) is slidably connected to the second support leg (12). The second tightening bolt (16) is located on the side of the second support leg (12). The second tightening bolt (16) is used to fix the position of the positioning block (17) at the bottom of the second support leg (12). The mounting base plate (18) is located on the outside of the bottom of the positioning block (17). The fixing rod (19) is located at the bottom of the positioning block (17). The fixing ring tooth (110) is located at the bottom of the mounting base plate (18).

3. The automatic light-avoidance sampling device for field optically stimulated luminescence dating samples according to claim 1, characterized in that, The linear drive mechanism (6) includes a mounting base plate (61), a hydraulic push rod (62), a mounting frame (63), a guide groove (64), a guide rod (65), and a limiting block (66). The mounting base plate (61) is located on the top of the mounting platform (3), the hydraulic push rod (62) is located on the side of the mounting base plate (61), the mounting frame (63) is located at the output end of the hydraulic push rod (62), the guide groove (64) is opened on the top of the mounting platform (3), the guide rod (65) is located inside the guide groove (64), the limiting block (66) is located at the end of the guide rod (65), and the mounting frame (63) is slidably connected to the guide rod (65).

4. The automatic light-shielding sampling device for field optically stimulated luminescence dating according to claim 3, characterized in that, The sampling and light-shielding mechanism (5) further includes a central fixing tube (52), a sampling tube (53), a sealing plate (54), a push-cutting blade (516), a drive assembly (58), a fixing seat (59), a mounting collar (510), and a sample cutting assembly. The outer tube (51) is located on the side of the mounting frame (63) away from the hydraulic push rod (62). The central fixing tube (52) is located inside the outer tube (51), and the fixing seat (59) is located on the side of the outer tube (51). 1) The sampling tube (53) is located inside the middle fixed tube (52) at the inner end. The outer tube (51) has an installation groove at the end away from the mounting frame (63). The sealing plate (54) is located in the installation groove at the end of the outer tube (51) away from the mounting frame (63). The pushing cutter (516) is located at the end of the outer tube (51) away from the mounting frame (63). The installation collar (510) is fixedly sleeved on the middle fixed tube (52).

5. The automatic light-shielding sampling device for field optically stimulated luminescence dating according to claim 4, characterized in that, The central fixed tube (52) includes a fixed collar (521), a threaded fixed sleeve (522), and a third electric push rod (523). The fixed collar (521) is located inside the central fixed tube (52) and is slidably connected to the central fixed tube (52). The threaded fixed sleeve (522) is located on the side of the fixed collar (521) close to the sampling tube (53). The threaded fixed sleeve (522) is fixedly connected to the fixed collar (521) and threadedly connected to the end of the sampling tube (53). The third electric push rod (523) is located on the side of the fixed collar (521) away from the threaded fixed sleeve (522), and the other end of the third electric push rod (523) is fixedly connected to the fixed seat (59).

6. The automatic light-shielding sampling device for field optically stimulated luminescence dating samples according to claim 4, characterized in that, The light-shielding assembly includes a first light-shielding plate (55) and a second light-shielding plate (56). The first light-shielding plate (55) is located at the end of the middle fixing tube (52) away from the fixing seat (59), and the second light-shielding plate (56) is located in the mounting groove at the end of the outer sleeve tube (51) away from the mounting frame (63). Both the first light-shielding plate (55) and the second light-shielding plate (56) are rotated by a drive assembly (58) to achieve light blocking. The drive assembly (58) includes a drive motor (581), a drive gear (582), a driven gear (583), and a connecting rod (584). The first light-shielding plate (55) is equipped with... The drive motor (581) in the drive assembly (58) of the second light shield (56) is mounted on the surface of the mounting collar (510). The drive motor (581) in the drive assembly (58) of the second light shield (56) is mounted in the mounting groove. The drive gear (582) is fixedly connected to the output end of the drive motor (581). The driven gear (583) is located on the side of the drive gear (582) and meshes with the drive gear (582). The connecting rod (584) is located between the light shield and the driven gear (583) and is used to transmit force to the light shield, so that the drive motor (581) can drive the light shield to rotate.

7. The automatic light-shielding sampling device for field optically stimulated luminescence dating according to claim 6, characterized in that, The sample cutting assembly includes a mounting arc plate (511), a fourth electric push rod (512), a movable sealing plate (513), a slide groove (514), an arc-shaped slot (515), a cutting ring (57), a piston (517), and a fifth electric push rod (518). The mounting arc plate (511) is located inside the outer sleeve (51), and the top of the mounting arc plate (511) is fixedly connected to the outer wall of the middle fixed tube (52) to support the middle fixed tube (52). The fourth electric push rod (512) is located on the side of the mounting arc plate (511), and the movable sealing plate (513) is located at the output end of the fourth electric push rod (512). The slide groove (514) is opened on the inner wall of the outer sleeve (51), and the movable sealing plate (513) is slidably connected to the slide groove (514). The arc-shaped slot (515) is opened on the outer sleeve (511). 51) Side wall, the size of the movable sealing plate (513) matches the size of the arc-shaped slot (515), the movable sealing plate (513) seals the arc-shaped slot (515) through the fourth electric push rod (512) to prevent light leakage, the cutting ring (57) is located on the other side of the first light shield (55), the cutting ring (57) is also equipped with a drive assembly (58), the drive motor (581) in the drive assembly (58) equipped with the cutting ring (57) is installed on the surface of the mounting ring (510), the cutting ring (57) is used to cut the optically stimulated luminescence dating sample, the piston (517) is located inside the sampling tube (53), and the piston (517) is slidably connected to the inner wall of the sampling tube (53), the fifth electric push rod (518) is located on the side of the piston (517) near the fixed seat (59).

8. The automatic light-shielding sampling device for field optically stimulated luminescence dating samples according to claim 7, characterized in that, The collection mechanism (4) includes a mounting plate (41), a first electric push rod (42), a light-shielding collection chamber (43), a collection cavity (44), a hanging rod (45), an adhesive silicone pad (46), a heat-sealing plate (47), and a second electric push rod (48). The mounting plate (41) is located in the first through groove (21) and is fixedly connected to the first through groove (21). The first electric push rod (42) is located on the upper surface of the mounting plate (41). The light-shielding collection chamber (43) is located on top of the first electric push rod (42). The top of the light-shielding collection chamber (43) is arc-shaped. The arc of the top of the light-shielding collection chamber (43) matches the arc of the outer sleeve (51). 3) A sealing gasket is provided at the top. The position of the light-proof collection chamber (43) corresponds to the position of the arc-shaped slot (515). The collection cavity (44) is located inside the light-proof collection chamber (43). The hanging rod (45) is located on the inner wall of the collection cavity (44). An adhesive silicone pad (46) is provided on the surface of the hanging rod (45). Two heat-sealing plates (47) are provided in the collection cavity (44). The two heat-sealing plates (47) are arranged opposite each other. A second electric push rod (48) is provided between the two heat-sealing plates (47) and the inner wall of the collection cavity (44). The second electric push rod (48) is used to drive the heat-sealing plate (47) to perform heat-sealing on the sample bag placed at the sample outlet.

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