Portable glacial grain snow layer coring device

Abstract

The utility model discloses a portable glacier grain snow layer coring device, which relates to the technical field of coring, and comprises a coring guide pipe, a connecting clamping seat and a cutting blade cylinder, two limiting rings are formed at the bottom end of the outer wall of the coring barrel, and an adjusting assembly is installed between the limiting rings; the adjusting assembly is arranged in the adjusting groove; a girdling bulge is formed at the bottom end of the inner wall of the coring cylinder; an arc-shaped guide groove is downwards formed in the top end of the coring cylinder; an elliptical bulge is formed on the outer wall of the impact-resistant connector and is inserted into the arc-shaped guide groove; a supporting ring is further formed on the outer wall of the impact-resistant connector. The top end of the heavy hammer stroke chamber is provided with an opening in which a heavy hammer is arranged; the bottom end of the inner wall of the heavy punch stroke chamber is supported on the supporting ring and fixedly connected with the impact-resistant connector through a bolt. The glacier grain snow layer coring device is simple in structure, can be assembled on site and is convenient to carry, and through the structure of the coring cylinder, the coring cylinder is movably connected with the coring guide pipe and is quickly inserted into the impact-resistant connector; the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coring, in particular to a portable glacier granular snow layer coring device. Background Art

[0002] The Qinghai-Tibet Plateau is the most developed glacier region except the South and North Poles. Glaciers preserve a large amount of information such as temperature, precipitation, aerosols, atmospheric dust and microorganisms, and are an important carrier for conducting research on climate and environmental changes. Sampling research on the granular snow layer in the accumulation area at the top of the glacier is an effective means to reveal the process and mechanism of climate and environmental changes and atmospheric pollutant transmission in modern times. Since the granular snow layer in this area has not yet been compacted into ice and is in the accumulation area, the climate and environmental information of the region on a seasonal scale is preserved in an original and high-resolution manner. First, the determination of the density of the granular snow layer can be used to accurately estimate the amount of annual precipitation in high-altitude areas and the characteristics of seasonal precipitation changes. Secondly, the analysis and study of hydrogen and oxygen stable isotopes in the water body of the granular snow layer can be used to reveal the seasonal variation characteristics of water vapor transport and track the source of water vapor in different seasons. Thirdly, the analysis and study of dust particles in the granular snow layer can reveal the occurrence time of atmospheric aerosol and dust events. Combined with the analysis of water vapor and atmospheric circulation, it can reveal the source of regional dust and atmospheric pollutants and explain their climate and environmental effects. However, due to the high altitude and harsh climate, there is still relatively little systematic research data on the granular snow layer at the top of mountain glaciers on the Qinghai-Tibet Plateau. The limited research is mainly carried out in conjunction with a few deep ice core drilling studies. It should also be noted that the ice core drilling equipment currently available in China is generally heavy and cannot meet the needs of rapid drilling of granular snow cores alone. The above problems seriously affect and hinder the research and revelation of the modern climate and environmental mechanisms in the Qinghai-Tibet Plateau.

[0003] Therefore, in order to more effectively carry out sampling research on the granular snow layer on the top of mountain glaciers on the Qinghai-Tibet Plateau, provide richer and higher-quality basic data for research on climate and environmental changes, atmospheric circulation processes and mechanisms, and systematically reveal the mechanism of climate and environmental changes on the Qinghai-Tibet Plateau, a portable glacier granular snow layer coring device suitable for use on the top of high-altitude glaciers was designed and developed. Utility Model Content

[0004] The utility model aims to provide a portable glacier snow layer coring device to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the utility model provides the following solution: The utility model provides a portable glacier snow layer coring device, comprising:

[0006] The core guide tube comprises a connecting seat and a cutting blade tube; the connecting seat and the cutting blade tube are integrally formed, and an adjusting groove is formed inwardly of the inner cavity of the connecting seat;

[0007] The core barrel is a hollow cylindrical structure; two limiting rings are formed at the bottom of the outer wall of the core barrel, and an adjustment component is installed between the limiting rings; the adjustment component is placed in the adjustment groove; a ring cutting protrusion is formed at the bottom of the inner wall of the core barrel; an arc guide groove is opened downward at the top of the core barrel;

[0008] An impact-resistant connector, wherein the outer wall of the impact-resistant connector is formed with an elliptical protrusion, and the elliptical protrusion is inserted into the arc-shaped guide groove; the outer wall of the impact-resistant connector is also formed with a support ring;

[0009] The weight stroke chamber has an opening at the top and a weight is arranged inside; the bottom end of the inner wall of the weight stroke chamber is supported on the support ring and is fixedly connected to the impact-resistant connector by bolts.

[0010] The outer diameter of the bottom end of the connecting seat is the same as the outer diameter of the cutting blade tube, the radius of the outer diameter end face of the cutting blade tube gradually decreases to the bottom end, and the outer diameter of the bottom end of the cutting blade tube is the same as the inner diameter; a reinforcing block is also fixedly installed at the connection between the connecting seat and the outer wall of the cutting blade tube.

[0011] A gap is formed between the outer wall of the connecting socket and the adjusting groove, and the width of the gap is consistent with the width of the annular cutting protrusion.

[0012] The adjustment assembly includes a spring and a telescopic ring; the telescopic ring is arranged between the two limiting rings, and assembly protrusions are formed on both sides of the telescopic ring; the assembly protrusions extend into the clearance grooves in the limiting rings; a plurality of springs are arranged between the telescopic ring and the outer wall of the core barrel;

[0013] The inner wall of the adjusting groove is a curved surface.

[0014] The annular protrusions are semi-elliptical protrusion structures and are arranged at equal intervals at the bottom end of the inner wall of the core barrel.

[0015] The arc-shaped guide grooves are symmetrically provided on the core-taking barrel. The arc-shaped guide grooves include an arc-shaped channel and a fixing groove, and the elliptical protrusion is clamped in the fixing groove.

[0016] The top end of the weight is connected with a connecting rope, and the connecting rope extends out of the weight stroke chamber through the opening.

[0017] The utility model discloses the following technical effects: the glacier granular snow layer coring device has a simple structure, can be assembled on site, is easy to carry, and can realize active connection with the coring guide tube and quick plug-in with the impact-resistant connector through the structure of the coring tube; and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the structure of the core guide tube and the core barrel of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure of the impact-resistant connector and the heavy hammer stroke chamber of the utility model;

[0021] Figure 3 for Figure 1 A magnified view of the structure;

[0022] Figure 4 This is a schematic diagram of the bottom end surface structure of the core barrel of the utility model;

[0023] Among them, 1. core guide tube; 11. connecting seat; 12. cutting blade tube; 13. adjustment groove; 14. reinforcement block; 2. core tube; 21. limit ring; 22. ring cutting protrusion; 23. arc guide groove; 24. spring; 25. telescopic ring; 26. assembly protrusion; 27. clearance groove; 3. impact-resistant connector; 31. support ring; 4. heavy hammer travel chamber; 5. heavy hammer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] The utility model provides a portable glacier snow layer coring device, comprising:

[0027] The core guide tube 1 comprises a connecting seat 11 and a cutting blade tube 12; the connecting seat 11 and the cutting blade tube 12 are integrally formed, and an adjusting groove 13 is formed inwardly of the inner cavity of the connecting seat 11;

[0028] The core barrel 2 is a hollow cylindrical structure; two limiting rings 21 are formed at the bottom of the outer wall of the core barrel 2, and an adjustment component is installed between the limiting rings 21; the adjustment component is arranged in the adjustment groove 13; a ring cutting protrusion 22 is formed at the bottom of the inner wall of the core barrel 2; an arc guide groove 23 is opened downward at the top of the core barrel 2;

[0029] The impact-resistant connector 3 has an elliptical protrusion formed on its outer wall, which is inserted into the arc-shaped guide groove 23; the impact-resistant connector 3 also has a support ring 31 formed on its outer wall;

[0030] The weight stroke chamber 4 has an opening at the top, and a weight 5 is arranged inside; the bottom end of the inner wall of the weight stroke chamber 4 is supported on the support ring 31, and is fixedly connected to the impact-resistant connector 3 by bolts.

[0031] The outer diameter of the bottom end of the connecting seat 11 is the same as the outer diameter of the cutting blade tube 12. The radius of the outer diameter end face of the cutting blade tube 12 gradually decreases to the bottom end, and the outer diameter of the bottom end of the cutting blade tube 12 is the same as the inner diameter. A reinforcing block 14 is also fixedly installed at the connection between the connecting seat 11 and the outer wall of the cutting blade tube 12.

[0032] A gap is formed between the outer wall of the connecting seat 11 and the adjusting groove 13 , and the width of the gap is consistent with the width of the annular cutting protrusion 22 .

[0033] The adjustment assembly includes a spring 24 and a telescopic ring 25; the telescopic ring 25 is arranged between the two limiting rings 21, and assembly protrusions 26 are formed on both sides of the telescopic ring 25; the assembly protrusions 26 extend into the clearance grooves 27 in the limiting rings 21; a plurality of springs 24 are arranged between the telescopic ring 25 and the outer wall of the core barrel 2;

[0034] The inner wall of the adjustment groove 13 is a curved surface.

[0035] The annular protrusions 22 are semi-elliptical protrusion structures and are arranged at equal intervals on the bottom end of the inner wall of the core barrel 2 .

[0036] Two arc-shaped guide grooves 23 are symmetrically provided on the coring barrel 2 ; the arc-shaped guide grooves 23 include an arc-shaped channel and a fixing groove, and the elliptical protrusion is clamped in the fixing groove.

[0037] The top of the weight 5 is connected with a connecting rope, and the connecting rope extends out of the weight stroke chamber 4 through the opening.

[0038] In one embodiment of the present invention, a sharp cutting edge is formed at the bottom end of the cutting blade tube 12 , and is reinforced with the connecting base 11 by a reinforcing block 14 , so as to compensate for the lack of strength caused by the opening of the adjusting slot 13 .

[0039] In one embodiment of the utility model, an axially symmetrical arc guide groove 23 is opened on the top of the core barrel 2, and the elliptical protrusion on the outer wall of the impact-resistant connecting head 3 is rotated into the arc channel and clamped in the fixed groove, so as to realize the flexible connection between the impact-resistant connecting head 3 and the core barrel 2; if the impact-resistant connecting head 3 and the core barrel 2 are connected by threads, the impact of the heavy hammer 5 may cause the connection between the impact-resistant connecting head 3 and the core barrel 2 to be destroyed, so that the corer cannot perform normal coring.

[0040] In one embodiment of the utility model, the bottom of the core barrel 2 is inserted into the connecting socket 11 through the telescopic ring 25 to realize the connection between the core barrel 2 and the connecting socket 11, and the core barrel 2 can rotate in the connecting socket 11. When taking snow cores, the core barrel 2 is pulled out, and the core barrel 2 is rotated so that the annular cutting protrusion 22 in the core barrel destroys the snow block, so that the snow core at the bottom of the core barrel 2 is detached.

[0041] In one embodiment of the utility model, the top of the impact-resistant connector 3 can be designed in an elliptical shape and tightly connected to the weight stroke chamber 4; the weight 5 can move up and down in the weight stroke chamber 4, the weight 5 is filled with lead, and the top is connected to a connecting rope.

[0042] In one embodiment of the utility model, when carrying out the snow core extraction operation of the granular snow layer, the overall device is first assembled on the work site, and the various components are combined and installed in sequence from bottom to top; first, the top of the coring guide tube 1 is connected to the bottom of the coring barrel 2, and the adjustment component is inserted into the adjustment groove 13 through the elasticity of the spring 24, and then the impact-resistant connector 3 is flexibly connected to the coring barrel 2 (first align a group of elliptical protrusions of the impact-resistant connector 3 with the entrance of the arc-shaped guide groove 23 at the top of the coring barrel 2, and then lower it in sequence and turn it into the fixed groove, and then, put in the heavy hammer 5, and the heavy hammer stroke chamber 4 is threadedly connected to the upper part of the impact-resistant connector 3, and the connecting rope of the heavy hammer 5 is pulled out through the opening at the top of the heavy hammer stroke chamber 4.

[0043] In one embodiment of the utility model, the lower cutting edge of the coring guide tube 1 is inserted into the granular snow layer of the work site, the weight stroke chamber 4 is lifted, and the elliptical protrusion at the lower part of the impact-resistant connector 3 connected thereto is connected to the arc guide groove 23 at the top of the coring barrel 2. At this time, the portable glacier granular snow layer coring device is fully installed, and the extraction of snow cores from the granular snow layer can be carried out; the weight 5 is lifted by the connecting rope, and then the connecting rope is loosened. The weight 5 hits the impact-resistant connector 3 after free fall in the weight stroke chamber 4, and the core barrel 2 is strongly pressed downward. The lifting and loosening of the weight 5 are repeated. When the coring guide tube 1 connected to the core barrel 2 penetrates the granular snow layer downward to the required depth, the granular snow layer coring device is lifted, and the annular cutting protrusion 22 in the core barrel 2 is rotated to obtain the required glacier granular snow core. After pouring out the snow core that has been cut and captured by the core lifter, the device is placed in the granular snow hole. After repeating the above operation, snow cores from deeper and deeper parts can be continuously obtained.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A portable glacier snow layer coring device, characterized in that: include: The core guide tube (1) comprises a connecting clamp (11) and a cutting blade tube (12); the connecting clamp (11) and the cutting blade tube (12) are integrally formed, and an adjusting groove (13) is formed inwardly of the inner cavity of the connecting clamp (11); The coring tube (2) is a hollow cylindrical structure; two limiting rings (21) are formed at the bottom end of the outer wall of the coring tube (2), and an adjustment component is installed between the limiting rings (21); the adjustment component is arranged in the adjustment groove (13); a ring-cut protrusion (22) is formed at the bottom end of the inner wall of the coring tube (2); and an arc-shaped guide groove (23) is opened downward at the top end of the coring tube (2); An impact-resistant connector (3), wherein the outer wall of the impact-resistant connector (3) is formed with an elliptical protrusion, and the elliptical protrusion is inserted into the arc-shaped guide groove (23); the outer wall of the impact-resistant connector (3) is also formed with a support ring (31); The weight stroke chamber (4) has an opening at the top and a weight (5) is arranged inside; the bottom end of the inner wall of the weight stroke chamber (4) is supported on the support ring (31) and is fixedly connected to the impact-resistant connector (3) by bolts.

2. A portable glacier snow layer coring device according to claim 1, characterized in that: The outer diameter of the bottom end of the connecting clamp (11) is the same as the outer diameter of the cutting blade tube (12), the radius of the outer diameter end face of the cutting blade tube (12) gradually decreases to the bottom end, and the outer diameter of the bottom end of the cutting blade tube (12) is the same as the inner diameter; a reinforcing block (14) is also fixedly installed at the connection between the connecting clamp (11) and the outer wall of the cutting blade tube (12).

3. A portable glacier snow layer coring device according to claim 1, characterized in that: A gap is formed between the outer wall of the connecting seat (11) and the adjusting groove (13), and the width of the gap is consistent with the width of the annular cutting protrusion (22).

4. A portable glacier snow layer coring device according to claim 1, characterized in that: The adjustment assembly comprises a spring (24) and a telescopic ring (25); the telescopic ring (25) is arranged between the two limiting circular rings (21), and assembly protrusions (26) are formed on both sides of the telescopic ring (25); the assembly protrusions (26) extend into the clearance grooves (27) in the limiting circular rings (21); a plurality of the springs (24) are arranged between the telescopic ring (25) and the outer wall of the core barrel (2); The inner wall of the adjustment groove (13) is a curved surface.

5. The portable glacier snow layer coring device according to claim 1, characterized in that: The annular protrusions (22) are semi-elliptical protrusion structures and are arranged at equal intervals at the bottom end of the inner wall of the coring barrel (2).

6. The portable glacier snow layer coring device according to claim 1, characterized in that: Two arc-shaped guide grooves (23) are symmetrically provided on the core-taking barrel (2); the arc-shaped guide groove (23) comprises an arc-shaped channel and a fixing groove, and the elliptical protrusion is clamped in the fixing groove.

7. The portable glacier snow layer coring device according to claim 1, characterized in that: The top end of the weight (5) is connected to a connecting rope, which extends out of the weight stroke chamber (4) through the opening.

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