A portable photoluminescence dating sample collection device

Abstract

This utility model discloses a portable optically stimulated luminescence (OSL) dating sample collection device, comprising a top block and an outer tube. A long, narrow handle is located in the middle of the top block, and an insertion block is located at the bottom of the top block, which is inserted into the top of the outer tube. A sampling tube, metal and rubber gaskets are fitted inside the outer tube, and a drill bit is located at the bottom. This utility model consists of a top block, an outer tube, and several small components, with a simple structure and easy portability. The threaded outer tube is powered by hammering and rotation via the top block, facilitating rapid drilling and retraction during sampling. The number of rubber and metal gaskets can be adjusted according to the length of the sampling tube, reducing the difficulty of processing the sampling tube and facilitating its acquisition.

Description

Technical Field

[0001] This utility model belongs to the technical field of geological survey and sampling devices, specifically relating to a portable optically stimulated luminescence (OSL) dating sample collection device. Background Technology

[0002] Optically stimulated luminescence (OSL) dating is a commonly used Quaternary dating method in the field of geology. It works by stimulating silicate mineral crystals in sediments with energy accumulated by ionizing radiation through light. This energy is released in the form of light signals. The longer the ionizing radiation exposure time, the higher the intensity of the OSL signal. Based on the measurement of the OSL signal, the age of the sediment sample since its last burial can be obtained.

[0003] Based on the principle of optically stimulated luminescence (OSL) dating, sample collection requires minimizing light exposure during the process, and the samples must be sealed quickly after collection to prevent light leakage and moisture loss. Currently, the main sampling method for OSL samples involves cutting a stainless steel tube into 20±5cm lengths to serve as a sampling container, hammering it into the target stratum, then excavating it and sealing it in aluminum foil or a black plastic bag. The advantages of this method are that all necessary materials are readily available and portable; the disadvantages are that the sampling tube is prone to deformation in harder strata, affecting the sampling success rate, and the excavation process is extremely laborious, impacting sampling efficiency.

[0004] To address the shortcomings of the aforementioned sampling methods, several design schemes for optically stimulated luminescence (OSL) dating sample collection have been proposed. These schemes are mostly powered by electric motors, making the sampling process convenient and quick. However, these sampling devices suffer from significant portability issues. In addition to drilling rigs, they often require an external power supply, making them impractical for fieldwork. Utility Model Content

[0005] This invention provides a portable optically stimulated luminescence (OSL) dating sample collection device to solve the problems mentioned in the background art, such as the easy deformation of the sampling steel pipe when encountering hard strata, which affects the sampling success rate, the extremely laborious digging process, which affects the sampling efficiency, and the inconvenience of carrying the motor-driven sampling device.

[0006] To solve the above problems, the technical solution provided by this utility model is as follows:

[0007] This utility model provides a portable optically stimulated luminescence (OSL) dating sample collection device, including a top block (1) and an outer tube (9). The top block (1) is provided with a long handle (2) in the middle, and an insertion block (3) is provided at the bottom of the top block (1). The insertion block (3) is inserted into the top of the outer tube (9). A sampling tube (13) is sleeved inside the outer tube (9), and a drill bit (16) is provided at the bottom of the outer tube (13).

[0008] In a preferred embodiment of this utility model, the top block (1), the handle (2), and the insertion block (3) are integrally formed, and the outer tube (9) can be pushed to collect samples by hammering the top block (1) or rotating the handle (2).

[0009] In a preferred embodiment of this utility model, a limiting strip (5) is provided in the middle of the insert (3), and a corresponding limiting groove (6) is provided at the top of the outer tube (9) to facilitate the positioning and placement of the insert (3) and the outer tube (9).

[0010] In a preferred embodiment of this utility model, the insert (3) is provided with a first threaded hole (4) in the middle, and the top of the outer tube (9) is provided with a corresponding second threaded hole. A stud (7) is inserted into both the insert (3) and the outer tube (9). The stud (7) passes through the first threaded hole (4) and the second threaded hole, and easy-to-remove nuts (8) are installed at both ends of the stud (7) for easy disassembly.

[0011] In a preferred embodiment of this utility model, the outer tube (9) has a thread (10) on its wall, which facilitates the outer tube (9) to be pushed into the sampling stratum by rotation, and the top of the thread (10) corresponds to the top of the sampling tube (13).

[0012] In a preferred embodiment of this utility model, the outer diameter of the sampling tube (13) is smaller than the inner diameter of the outer tube (9), which facilitates the insertion and removal of the sampling tube (13).

[0013] In a preferred embodiment of this utility model, a metal gasket (12) is placed on the top of the sampling tube (13) to seal the top of the sampling tube (13); a plurality of rubber gaskets (11) with a thickness of 1-2mm are placed on the top of the metal gasket (12) to adjust the length difference caused by tolerance during the cutting process of the sampling tube (13).

[0014] In a preferred embodiment of the present invention, the bottom of the outer tube (9) is provided with a long strip-shaped retraction rod hole (14), into which a retraction rod (15) can be inserted, and the top of the retraction rod hole (14) is higher than the bottom of the sampling tube (13).

[0015] Compared with the prior art, the present invention provides a portable optically stimulated luminescence (OSL) dating sample collection device, which has the following advantages: (1) The present invention mainly consists of a top block, an outer tube, and several small parts, which is simple in structure and easy to carry. (2) The threaded outer tube, through the hammering and rotational power applied by the top block, is conducive to rapid drilling and withdrawal during the sampling process. (3) The number of rubber pads can be adjusted according to the length of the sampling tube, which reduces the difficulty of processing the sampling tube and facilitates the acquisition of the sampling tube. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a portable optically stimulated luminescence (OSL) dating sample acquisition device provided in an embodiment of this application.

[0018] Figure 2 A schematic cross-sectional view of a portable optically stimulated luminescence (OSL) dating sample acquisition device provided in this application embodiment.

[0019] Reference numerals: Top block 1, Handle 2, Insert block 3, First threaded hole 4, Limiting strip 5, Limiting groove 6, Stud 7, Nut 8, Outer tube 9, Thread 10, Rubber gasket 11, Metal gasket 12, Sampling tube 13, Retraction rod hole 14, Retraction rod 15, Drill bit 16. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The terms "upper," "lower," "front," "rear," "left," and "right," etc., used when describing the installation position or direction of the structure or components in this embodiment are based on the orientation shown in the accompanying drawings. They are merely for convenience of description, used to distinguish the relative positions of various components or directions, and do not represent the orientation of the device or functional component in this embodiment during use.

[0021] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a portable optically stimulated luminescence (OSL) dating sample collection device, including a top block 1, a handle 2, an insert block 3, a stud 7, a nut 8, an outer tube 9, a retraction rod 15, and a drill bit 16. A long, narrow handle 2 is located in the middle of the top block 1, and an insert block 3 is located at the bottom of the top block 1. The insert block 3 is inserted into the top of the outer tube 9, meaning the top block 1 is connected to the outer tube 9 via the bottom insert block 3. A sampling tube 13 is fitted inside the outer tube 9, and a drill bit 16 is located at the bottom of the outer tube 13. The top block 1, handle 2, and insert block 3 are integrally formed, allowing sample collection by hammering the top block 1 or rotating the handle 2 to push the outer tube 9.

[0022] A vertical limiting strip 5 is provided in the middle of the insert block 3, and a corresponding limiting groove 6 is provided at the top of the outer tube 9 to facilitate the positioning of the insert block 3 and the outer tube 9, and to limit their position during the connection process. A first threaded hole 4 is provided in the middle of the insert block 3, and a corresponding second threaded hole is provided at the top of the outer tube 9. A stud 7 is inserted into both the insert block 3 and the outer tube 9. The stud 7 passes through the first threaded hole 4 and the second threaded hole, and easy-to-remove nuts 8 are installed at both ends of the stud 7 for easy disassembly. In this embodiment, after the insert block 3 is inserted into the top of the outer tube 9, it is fixed by the stud 7 and the nuts 8.

[0023] The outer tube 9 has threads 10 on its wall, facilitating its entry and exit from the sampling stratum by rotation. A retraction rod hole 14 is located at the bottom of the outer tube 9. After sampling, a retraction rod 15 is inserted into the retraction rod hole 14 to push out the sampling tube 13. The sampling tube 13 is housed inside the outer tube 9, with the top of the thread 10 corresponding to the top of the sampling tube 13. In this embodiment, the bottom of the outer tube 9 has a long, narrow retraction rod hole 14, into which the retraction rod 15 can be inserted. The top of the retraction rod hole 14 is slightly higher than the bottom of the sampling tube 13, allowing the retraction rod 15 to move up and down along the retraction rod hole 14.

[0024] The outer diameter of the sampling tube 13 is slightly smaller than the inner diameter of the outer tube 9, facilitating the insertion and removal of the sampling tube 13. The inner diameter of the bottom of the outer tube 9 is slightly smaller than the outer diameter of the sampling tube 9. A metal gasket 12 is placed on the top of the sampling tube 13 to seal the top of the sampling tube 13; multiple rubber gaskets 11 with a thickness of 1-2 mm are placed on the top of the metal gasket 12 to adjust for length differences caused by tolerances during the cutting process of the sampling tube 13.

[0025] In use, first insert the sampling tube 13 (sealed with tin foil or a black plastic bag at the top), metal gasket 12, and rubber gasket 11 sequentially from the top of the outer tube 9. The number of rubber gaskets is adjusted according to the length of the sampling tube 13. Then, insert the insertion block 3 into the top of the outer tube 9 at the position defined by the limiting strip 5 and the limiting groove 6, and fix it with the stud 7 and nut 8. Then, drill the outer tube 9 into the target formation by hammering the top block 1 and rotating the handle 2. To ensure that there is enough sample in the sampling tube 13, the drilling... The depth should slightly exceed the top of the thread 10 on the surface of the outer tube 9; after drilling is completed, turn the handle 2 in the opposite direction to remove the sampling device, and cover the bottom of the outer tube 9 with a black plastic bag; unscrew the nut 8 and stud 7, remove the top block 1, and then pour out the rubber pad 11, metal pad 12, and sampling tube 13. If the sampling tube 13 is stuck, the retraction rod 15 can be inserted into the retraction rod hole 14, and the sampling tube 13 can be pushed out by moving it up and down; after the sampling tube 13 is poured out, it should be packaged in a light-shielding manner and sent to the relevant optically stimulated luminescence chronology laboratory for testing.

[0026] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A portable optically stimulated luminescence (OSL) dating sample collection device, characterized in that, It includes a top block (1) and an outer tube (9). The top block (1) is provided with a long handle (2) in the middle. The bottom of the top block (1) is provided with an insert (3). The insert (3) is inserted into the top of the outer tube (9). A sampling tube (13) is sleeved inside the outer tube (9). A drill bit (16) is provided at the bottom of the outer tube (13).

2. The portable optically stimulated luminescence (OSL) dating sample acquisition device according to claim 1, characterized in that, The top block (1), the handle (2), and the insertion block (3) are integrally formed structures. The outer tube (9) can be pushed to collect samples by hammering the top block (1) or rotating the handle (2).

3. The portable optically stimulated luminescence (OSL) dating sample acquisition device according to claim 2, characterized in that, The insertion block (3) is provided with a limiting strip (5) in the middle, and the outer tube (9) has a corresponding limiting groove (6) at the top, so as to facilitate the positioning and placement of the insertion block (3) and the outer tube (9).

4. The portable optically stimulated luminescence (OSL) dating sample acquisition device according to claim 3, characterized in that, The insert (3) has a first threaded hole (4) in the middle and a corresponding second threaded hole at the top of the outer tube (9). The insert (3) and the outer tube (9) are both connected to a stud (7). The stud (7) passes through the first threaded hole (4) and the second threaded hole, and the stud (7) is equipped with easy-to-remove nuts (8) at both ends for easy disassembly.

5. A portable optically stimulated luminescence (OSL) dating sample acquisition device according to claim 1, characterized in that, The outer tube (9) has threads (10) on its wall, which facilitates the insertion of the outer tube (9) into the sampling stratum by rotation. The top of the thread (10) corresponds to the top of the sampling tube (13).

6. The portable optically stimulated luminescence (OSL) dating sample acquisition device according to claim 5, characterized in that, The outer diameter of the sampling tube (13) is smaller than the inner diameter of the outer tube (9), which facilitates the insertion and removal of the sampling tube (13).

7. A portable optically stimulated luminescence (OSL) dating sample acquisition device according to claim 6, characterized in that, A metal gasket (12) is placed on the top of the sampling tube (13) to seal the top of the sampling tube (13); a plurality of rubber gaskets (11) with a thickness of 1-2 mm are placed on the top of the metal gasket (12) to adjust the length difference caused by tolerance during the cutting process of the sampling tube (13).

8. A portable optically stimulated luminescence (OSL) dating sample acquisition device according to claim 6, characterized in that, The bottom of the outer tube (9) is provided with a long strip-shaped retraction rod hole (14), into which a retraction rod (15) can be inserted. The top of the retraction rod hole (14) is higher than the bottom of the sampling tube (13).

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