Coring device for collecting photoluminescence sample

Abstract

The utility model provides a coring device for collecting light release light samples, which relates to the technical field of soil sampling and comprises a sampler and a drill bit, a sampling end of the sampler is detachably connected with the drill bit, the other end of the sampler is detachably connected with a drill rod, the sampler comprises a sampling barrel and a sealing pipe, the sampling barrel is detachably connected with the drill bit, and a packaging opening is arranged on the sampling barrel. The sealing pipe is arranged in the sampling pipe from the packaging opening, the packaging opening is covered and connected with a cover plate, the opening end of the sealing pipe faces one side of the drill bit, the other end of the sealing pipe is internally and slidably connected with a sealing piece, and the sealing pipe is packaged in the sampling barrel, so that the sealing pipe is prevented from being in direct contact with surrounding soil, and the light pollution risk of a sample is reduced; the inner diameter of the sealing pipe is equal to the inner diameter of the drill bit, a sample drilled by the drill bit is completely loaded into the sampling barrel, after sampling is completed, the sealing pipe can be taken out of the sampling barrel, the sealing pipe can be conveniently transferred, the sealing pipe is black, real burying signals are reserved, and therefore accurate and reliable age data are obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to soil sampling technical field, especially take a kind of coring device for taking optically stimulated luminescence sample. BACKGROUND

[0002] Optically stimulated luminescence (OSL) dating technique is a dating method widely used in Quaternary geology, archaeology and other fields, and its principle is to determine the burial age of sediments by measuring the accumulated radiation energy of mineral particles (such as quartz and feldspar) after the last exposure to sunlight. The accuracy of this technique highly depends on the quality of sample collection, especially avoiding light pollution of the sample during collection and transportation.

[0003] Currently, the common OSL sampling device on the market mainly consists of a drill rod, a sampler and a drill bit. The sampler is cylindrical, and its two ends are connected with the drill rod and the drill bit respectively. The drill rod drives the drill bit to rotate and break the soil, and the sampler samples the sample. After sampling, the sample needs to be knocked out of the sampler, which can easily damage the structure of the sample. The sampler is usually made of ordinary metal or plastic material, and lacks effective light shielding design. Even if the operator takes measures such as rapid bagging, it is still difficult to completely avoid the sample from being exposed to natural light or artificial light source during the sampling and transferring process, resulting in a younger dating result and irreversible data error. The outer wall of the sampler directly contacts with the surrounding soil during drilling, causing a large amount of sludge to adhere to the outside of the sampler. When the sample is transferred, the pollutants are easily mixed into the sample to be tested, and the sample pollution risk is high. SUMMARY

[0004] The utility model aims at the above-mentioned technical problems, and provides a coring device for taking optically stimulated luminescence sample.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A coring device for taking optically stimulated luminescence sample, comprising a sampler and a drill bit, the sampling end of the sampler is detachably connected with the drill bit, the other end of the sampler is detachably connected with a drill rod, the sampler comprises a sampling cylinder and a sealing tube, the sampling cylinder is detachably connected with the drill bit, an encapsulation port is provided on the sampling cylinder, the sealing tube is placed in the sampling tube from the encapsulation port, a cover plate is connected with the encapsulation port, the open end of the sealing tube faces one side of the drill bit, and a sealing element is slidably connected in the other end of the sealing tube.

[0007] Preferably, the inner wall of the sampling cylinder is provided with a first limiting ring and a second limiting ring, and the sealing tube is located between the first limiting ring and the second limiting ring.

[0008] Preferably, the sealing member comprises a sealing plate and a plurality of guide locking rods, the sealing plate is slidably connected in the sealing tube, the plurality of guide locking rods are slidably connected on the sealing plate in a circumferential direction, a screw rod is connected to the sealing plate, the guide locking rods are connected to the screw rod through pressure springs, and the ends of the guide locking rods are slidably inserted into the inner wall of the sealing tube.

[0009] Preferably, the inner wall of the sealing tube is provided with a plurality of limiting grooves in a circumferential direction, and the ends of the guide locking rods are matched with the corresponding limiting grooves to limit the position of the limiting plate.

[0010] Preferably, the guide locking rod comprises a guide rod and an L-shaped locking rod, the guide rod is connected to the L-shaped locking rod, the guide rod is slidably connected to the sealing plate, the guide rod is slidably inserted into the inner wall of the sealing tube, and the guide rod is connected to the pressure spring.

[0011] Preferably, the sampling cylinder is provided with two arc-shaped supporting plates, the two arc-shaped supporting plates are located at two ends of the packaging opening respectively, the two arc-shaped supporting plates are respectively provided with clamping grooves, and the two ends of the cover plate are respectively provided with clamping blocks matched with the clamping grooves.

[0012] Preferably, the end of the sampling cylinder away from the drill bit is connected with a connecting cylinder, and the connecting cylinder is threadedly connected with a drill rod.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] The sealing tube is packaged in the sampling cylinder, so that the sealing tube is prevented from directly contacting the surrounding soil, the risk of light pollution of the sample is reduced, the inner diameter of the sealing tube is equal to the inner diameter of the drill bit, the sample drilled by the drill bit is completely loaded into the sampling cylinder, after sampling is completed, the sealing tube can be taken out from the sampling cylinder, the transfer of the sealing tube is facilitated, the sealing tube is black, external light is shielded, the sample is prevented from being affected by light during the taking, transportation and storage processes, the real buried signal is retained, and accurate and reliable age data is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 FIG. 1 is a structural schematic view of a core taking device for taking optically stimulated luminescence samples according to the present application;

[0016] Fig. 2 FIG. 3 is a structural schematic view of a sampling cylinder according to the present application;

[0017] Fig. 3 FIG. 4 is a structural schematic view of a sampling cylinder according to the present application;

[0018] Fig. 4 It is the structure schematic view of the sampling cylinder and the push rod of the utility model;

[0019] Fig. 5 It is the structure schematic view of the sampling cylinder and the push rod of the utility model;

[0020] Fig. 6 It is the structure schematic view of the push rod of the utility model;

[0021] In the figure, 1, sampler;2, drill bit;3, sampling cylinder;4, sealing tube;5, encapsulation mouth;6, cover plate;7, sealing element;8, sealing plate;9, guide lock rod;10, guide rod;11, L-shaped lock rod;12, screw;13, pressure spring;14, first limit ring;15, second limit ring;16, limit slot;17, arc-shaped supporting plate;18, clamping groove;19, clamping block;20, connecting cylinder;21, push rod;22, rod body;23, guide cover;24, threaded groove. DETAILED DESCRIPTION

[0022] In order to better understand the technical content of the utility model, the following specific embodiments are provided, and the utility model is further explained in combination with the drawings.

[0023] EMBODIMENT

[0024] Referring to Figs. 1 to 3 The utility model provides a kind of coring device for taking photoluminescence sample, including sampler 1 and drill bit 2, the sampling end of the sampler 1 is detachably connected with the drill bit 2, and the other end of the sampler 1 is detachably connected drill rod, and the detachable connection mode can be selected screw connection, and the sampler 1 is easy to assemble and disassemble, the sampler 1 includes sampling cylinder 3 and sealing tube 4, the sampling cylinder 3 is detachably connected with the drill bit 2, and it is convenient to assemble and disassemble drill bit 2, the sampling cylinder 3 is equipped with encapsulation mouth 5, the sealing tube 4 is placed into the sampling tube from encapsulation mouth 5, the encapsulation mouth 5 is covered with cover plate 6, and the cover plate 6 is covered on encapsulation mouth 5, and the sampling cylinder 3 is sealed, when drilling sample, avoid that sealing tube 4 directly contacts with the soil outside sampling cylinder 3, keep the cleanliness of sealing tube 4, after sampling, can open cover plate 6, and sealing tube 4 is taken out from sampling cylinder 3, it is convenient to transfer sealing tube 4, sealing tube 4 is black, effectively avoid that sample is exposed during transfer process, keep sample detection accuracy, the open end of the sealing tube 4 is towards the side of the drill bit 2, the other end of the sealing tube 4 is slidably connected with sealing element 7 inside, sealing element 7 seals the end of sealing tube 4 close to drill rod, and the open end is towards the side of drill bit 2, the inner diameter of sealing tube 4 is equal to the inner diameter of drill bit 2, and the sample drilled by drill bit 2 is completely loaded into sampling cylinder 3.

[0025] The inner wall of the sampling cylinder 3 is provided with a first limiting ring 14 and a second limiting ring 15, and the sealing tube 4 is located between the first limiting ring 14 and the second limiting ring 15. After the sealing tube 4 is placed in the sampling cylinder 3, the position of the sealing tube 4 is defined, and the sealing tube 4 is stabilized. In order to ensure the integrity of the sampling sample, the inner diameters of the sealing tube 4, the drill bit 2 and the first limiting ring 14 are equal.

[0026] Embodiment 2

[0027] Referring to Figs. 4 to 6 The difference between the present embodiment and the embodiment is that the sealing member 7 comprises a sealing plate 8 and a plurality of guide locking rods 9. The sealing plate 8 is slidingly connected in the sealing tube 4, and pushing the sealing plate 8 pushes the sample in the sealing tube 4 out. The plurality of guide locking rods 9 are slidingly connected on the sealing plate 8 in the circumferential direction. The sealing plate 8 is connected with a screw rod 12. The guide locking rods 9 are connected with the screw rod 12 through a pressure spring 13. The ends of the plurality of guide locking rods 9 are slidingly inserted into the inner wall of the sealing tube 4. The inside of the sealing tube 4 is provided with a plurality of limiting grooves 16 in the circumferential direction. The ends of the guide locking rods 9 cooperate with the corresponding limiting grooves 16 to define the position of the limiting plate. In the initial state, the ends of the guide locking rods 9 are inserted into the limiting grooves 16 to define the position of the sealing plate 8 at one end of the sealing tube 4 close to the drill rod. When the sample needs to be taken out, the guide locking rods 9 are unlocked by a push rod 21, and the sealing plate 8 is pushed to slide in the sealing tube 4 to push the sample out of the sealing tube 4. The push rod 21 comprises a rod body 22 and a guide cover 23. The guide cover 23 is connected with the rod body 22. The end of the rod body 22 close to the guide cover 23 is provided with a threaded groove 24. In use, the guide cover 23 is sleeved on the outside of the plurality of guide locking rods 9. The threaded groove 24 is threadedly connected with the screw rod 12. When the rod body 22 is rotated, the guide cover 23 moves continuously towards the side close to the sealing plate 8. The plurality of guide locking rods 9 move towards the side close to the screw rod 12 under the action of the guide cover 23. The guide locking rods 9 are away from the limiting grooves 16, and the sealing plate 8 is unlocked. The sealing plate 8 can slide, and the sealing plate 8 is pushed to slide by the rod body 22 to push the sample out.

[0028] The guide locking rod 9 comprises a guide rod 10 and an L-shaped locking rod 11. The guide rod 10 is connected with the L-shaped locking rod 11. The guide rod 10 is slidingly connected with the sealing plate 8. The guide rod 10 is slidingly inserted into the inner wall of the sealing tube 4. The guide rod 10 is connected with the pressure spring 13, which facilitates the unlocking of the plurality of guide locking rods 9.

[0029] The sampling cylinder 3 is provided with external threads. The drill bit 2 is provided with internal threads. The sampling cylinder 3 is threadedly connected with the drill bit 2. The end of the sampling cylinder 3 away from the drill bit 2 is connected with a connecting cylinder 20. The connecting cylinder 20 is threadedly connected with the drill rod, which facilitates the assembly and disassembly of the sampler 1.

[0030] Two arc-shaped supporting plates 17 are arranged on the sampling cylinder 3, and the two arc-shaped supporting plates 17 are respectively arranged at two ends of the sealing opening 5; the two arc-shaped supporting plates 17 are respectively provided with clamping grooves 18; the two ends of the cover plate 6 are respectively provided with clamping blocks 19; the clamping blocks 19 are matched with the clamping grooves 18; the clamping blocks 19 are clamped in the clamping grooves 18; and the cover plate 6 covers the sealing opening 5.

[0031] In use, the sealed pipe 4 is arranged in the sampling cylinder 3 from the sealing opening 5; the cover plate 6 is arranged on the sealing opening 5 through the matching of the clamping grooves 18 and the clamping blocks 19; the sampler 1 is connected to the drill rod; the other end of the sampler 1 is connected to the drill bit 2; the sample drilled by the drill bit 2 is completely arranged in the sampling cylinder 3; the sample is sampled; after the sampling is completed, the cover plate 6 is opened; the sealed pipe 4 is taken out from the sampling cylinder 3; and the sealed pipe 4 is conveniently transferred.

[0032] The above only describes the preferred embodiment of the present application, and is not used to limit the present application; any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A core sampling device for collecting optically stimulated luminescence (OSL) samples, comprising a sampler and a drill bit, wherein the sampling end of the sampler is detachably connected to the drill bit, and the other end of the sampler is detachably connected to a drill rod, characterized in that, The sampler includes a sampling tube and a sealing tube. The sampling tube is detachably connected to the drill bit. The sampling tube is provided with a sealing port. The sealing tube is inserted into the sampling tube through the sealing port. The sealing port is covered with a cover plate. The open end of the sealing tube faces one side of the drill bit. The other end of the sealing tube is slidably connected to a sealing element.

2. The core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 1, characterized in that: The inner wall of the sampling tube is provided with a first limiting ring and a second limiting ring, and the sealing tube is located between the first limiting ring and the second limiting ring.

3. A core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 2, characterized in that: The inner diameters of the sealing tube, the drill bit, and the first limiting ring are equal.

4. The core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 1, characterized in that: The sealing element includes a sealing plate and a plurality of guide locking rods. The sealing plate is slidably connected to the inside of the sealing tube. The plurality of guide locking rods are slidably connected to the sealing plate in the circumferential direction. The sealing plate is connected to a screw. The guide locking rods are connected to the screw through a pressure spring. The ends of the plurality of guide locking rods are slidably inserted into the inner wall of the sealing tube.

5. A core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 4, characterized in that: The sealing tube has several limiting grooves arranged circumferentially inside, and the end of the guide locking rod cooperates with the corresponding limiting groove to limit the position of the limiting plate.

6. A core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 4, characterized in that: The guide locking rod includes a guide rod and an L-shaped locking rod. The guide rod is connected to the L-shaped locking rod, the guide rod is slidably connected to the sealing plate, the guide rod is slidably inserted into the inner wall of the sealing tube, and the guide rod is connected to the pressure spring.

7. A core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 1, characterized in that: The sampling cylinder has an external thread, the drill bit has an internal thread, and the sampling cylinder is threadedly connected to the drill bit.

8. A core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 1, characterized in that: The sampling tube is provided with two arc-shaped support plates, which are located at both ends of the sealing port. Each of the two arc-shaped support plates is provided with a slot, and each end of the cover plate is provided with a block. The blocks cooperate with the slots.

9. A core sampling device for collecting optically stimulated luminescence (OSL) samples as described in claim 1, characterized in that: The sampling tube is connected to a connecting tube at the end away from the drill bit, and the connecting tube is threadedly connected to the drill rod.

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