Collecting device for high and cold frozen soil sample

Abstract

The utility model relates to the related technical field of collectors, in particular to a high and cold frozen soil sample collecting device which comprises a sleeve rod, a supporting assembly, a sampling assembly and a power assembly. The tops of the three supporting assemblies are fixedly connected with the side wall of the sleeve rod; the side wall of the sampling assembly is slidably connected with the inner wall of the loop bar; the top of the power assembly is rotationally connected with the supporting assembly. Power is provided in a static pressure mode, and compared with a traditional drilling or manual excavation mode, interference on frozen soil samples is reduced, and the integrity of the samples is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field related to collectors, and in particular to a device for collecting alpine frozen soil samples. Background Art

[0002] Frozen ground, a general term for various rocks and soils containing ice, has a relatively solid structure and includes three main types: temporary frozen ground, seasonal frozen ground, and permafrost. Frozen ground covers approximately 50% of Earth's land area and is widely distributed across my country's Qinghai-Tibet Plateau.

[0003] In recent years, with the development of the economy and science and technology, my country has seen an increase in engineering activities on the Qinghai-Tibet Plateau. To ensure quality and increase efficiency, a comprehensive understanding of the engineering properties of permafrost is required, significantly increasing the workload for sampling and testing. Traditional permafrost sampling devices often rely on manual excavation or drilling, which is not only time-consuming and labor-intensive but also significantly disturbs the permafrost samples, often damaging their structure and resulting in incomplete sampling. Sampling is also slow and inefficient, and workers must endure prolonged cold temperatures during each operation, which can be detrimental to their health. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies in the prior art and proposes a device for collecting alpine permafrost samples, aiming to solve at least one of the problems raised in the above-mentioned background technology.

[0005] The utility model provides a device for collecting alpine frozen soil samples, comprising: a sleeve rod, which is a hollow structure with openings at the top and bottom;

[0006] A support assembly, wherein the support assembly comprises three support assemblies in a circular array with the sleeve rod as the axis, and the tops of the support assemblies are fixedly connected to the side walls of the sleeve rod;

[0007] A bracket assembly, wherein the top of the bracket assembly is fixedly connected to the side wall of the sleeve rod;

[0008] A sampling assembly, wherein the side wall of the sampling assembly is slidably connected to the inner wall of the sleeve rod;

[0009] The top of the power assembly is rotatably connected to the support assembly.

[0010] In some embodiments, the sleeve rod is a cylindrical sleeve rod.

[0011] In some embodiments, the support assembly comprises:

[0012] a first connecting rod, the top of which is fixedly connected to the top of the side wall of the sleeve rod;

[0013] a second connecting rod, the top of which is fixedly connected to the bottom of the sleeve rod side wall;

[0014] A retractable column, wherein the top of the retractable column is fixedly connected to the bottom of the first connecting rod, and the side wall of the retractable column is fixedly connected to the bottom of the second connecting rod;

[0015] A tripod, the tripod is disc-shaped, and the center of its top is fixedly connected to the bottom of the retractable column;

[0016] The first connecting rod and the second connecting rod are arranged in parallel and have the same length, and are perpendicular to the telescopic column and the sleeve rod;

[0017] In some embodiments, the bracket assembly includes:

[0018] a first connecting column, the top of which is fixedly connected to the top of the sleeve rod side wall;

[0019] a second connecting column, the top of which is fixedly connected to the bottom of the sleeve rod side wall;

[0020] A support rod, wherein the bottom of the side wall of the support rod is fixedly connected to the bottom of the second connecting column, the side wall of the support rod is fixedly connected to the bottom of the first connecting column, and the top of the support rod is fixedly connected to a rotating bearing;

[0021] The first connecting column is arranged parallel to the first connecting rod, the second connecting column is arranged parallel to the second connecting rod, the first connecting column and the second connecting column are perpendicular to the support rod and have the same length.

[0022] In some embodiments, the sampling assembly comprises:

[0023] A transmission column, wherein the outer diameter of the transmission column matches the inner diameter of the sleeve rod, the transmission column passes through the sleeve rod, the side wall of the transmission column is slidably connected to the inner wall of the sleeve rod, and the top of the transmission column is connected to the power assembly;

[0024] A circular base, wherein the center of the top of the circular base is fixedly connected to the bottom of the transmission column, and the axis line coincides with that of the base, and the circular base is provided with six circular holes with internal threads in an annular array;

[0025] There are multiple sampling cylinders, which are hollow structures with openings at the top and bottom. The top of the side wall of the sampling cylinder is provided with an external thread that matches the internal thread of the circular hole. The top of the sampling cylinder is threadedly connected to the circular hole, and the bottom of the sampling cylinder is detachably connected with a ring blade.

[0026] In some embodiments, the power assembly includes:

[0027] A pressing assembly, the pressing assembly being arranged perpendicular to the support rod, the top of the pressing assembly being connected to the rotating bearing, and the pressing assembly being rotatable around the rotating bearing;

[0028] A grooved roller, wherein the bottom of the grooved roller is connected to the top of the transmission column, and the top roller end thereof abuts against the side wall of the pressing assembly.

[0029] In some embodiments, the pressing assembly includes:

[0030] a first support rod, wherein the top of the first support rod is connected to the rotating bearing, a cavity is provided inside the first support rod, an opening is provided at one end of the first support rod away from the rotating bearing, and a plurality of circular through holes are provided on the side wall of the first support rod symmetrically about the center point of the first support rod, and the circular through holes are connected to the inner cavity of the first support rod;

[0031] The second support rod, the outer diameter of the second support rod matches the inner diameter of the first support rod, its left end enters the interior of the first support rod through the opening, and its side wall is slidingly connected to the inner wall of the first support rod. Two grooves are symmetrically arranged on one side wall of the second support rod near the left end with the center point of the second support rod as the axis, and the grooves are on the same straight line as the circular through hole. A spring assembly is arranged in the groove, and the bottom of the spring assembly is fixedly connected to the bottom of the groove.

[0032] In some embodiments, the spring assembly comprises:

[0033] a spring member, wherein the bottom of the spring member is fixedly connected to the bottom of the groove;

[0034] The outer diameter of the protrusion matches the inner diameter of the circular through hole, the top of the protrusion can extend out of the first support rod along the circular through hole, and the bottom of the protrusion is fixedly connected to the spring member.

[0035] The foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0036] Other features and aspects of the present disclosure will become more apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1A front structural cross-sectional view of a device for collecting alpine frozen soil samples provided by an embodiment of the utility model;

[0039] Figure 2 A top view of a device for collecting alpine frozen soil samples provided in an embodiment of the present utility model;

[0040] Figure 3 A front cross-sectional view of a downward pressure assembly of a device for collecting alpine frozen soil samples provided by an embodiment of the utility model;

[0041] Figure 4 A partially enlarged view of the device for collecting alpine frozen soil samples provided in an embodiment of the utility model.

[0042] Among them: 14, sleeve rod; 2, first connecting rod; 28, second connecting rod; 21, retractable column; 22, tripod; 6, first connecting column; 7, second connecting column; 15, support rod; 9, rotating bearing; 13, transmission column; 3, circular base; 19, circular hole; 41, sampling tube; 42, annular blade; 12, grooved roller; 16, first support rod; 17, opening; 18, circular through hole; 19, second support rod; 20, groove; 21, spring member; 22, bump. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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 cannot be understood as a limitation on this application.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0046] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] As in the background art, the traditional frozen soil sampling device is mostly completed by manual excavation or drilling sampling, which not only consumes time and effort, but also greatly disturbs the frozen soil sample, often causing the structure of the frozen soil sample to be destroyed, the sampling to be incomplete, the sampling speed to be slow, the efficiency to be low, and the operating personnel to be affected by the cold environment for a long time in a single operation, which is not conducive to the health of the operating personnel.

[0048] To improve the above problems, the present application provides a frozen soil sample collecting device, which has a simple structure, the connection points are mainly connected in the form of threads, is easy to disassemble, assemble and carry, the sampling is complete, multiple samples can be taken at the same time, the sampling efficiency of frozen soil in field work is greatly improved, no external power source is needed, a power rod is used to provide pressure by using the principle of lever, the sampling pressure is more stable and accurate, the problem of frozen soil structure disturbance is eliminated, the inner diameter of the bottom blade of the sampler is slightly smaller than the inner diameter of the middle sample storage chamber, the inner wall of the sample storage chamber can be pre-coated with vaseline, and the sampling is easy to take out; compared with the traditional drilling or manual excavation method, the disturbance to the frozen soil sample is reduced, and the integrity of the sample is ensured.

[0049] Referring to Figure 1-4 As shown in the drawings, the frozen soil sample collecting device according to the present application comprises:

[0050] The sleeve rod 14 is a hollow structure, and the top and bottom thereof are provided with openings;

[0051] The support assembly is annularly arranged in three groups around the sleeve rod 14, and the top of the support assembly is fixedly connected to the side wall of the sleeve rod 14;

[0052] The support assembly is annularly arranged in three groups around the sleeve rod 14, and the top of the support assembly is fixedly connected to the side wall of the sleeve rod 14;

[0053] The sampling assembly is slidably connected to the inner wall of the sleeve rod 14;

[0054] The power assembly is rotatably connected to the top of the support assembly.

[0055] In some embodiments, the sleeve rod 14 is a cylindrical sleeve rod.

[0056] In some specific embodiments, the support assembly includes:

[0057] A first connecting rod 2, the top of the first connecting rod 2 is fixedly connected to the top of the side wall of the sleeve rod 14;

[0058] A second connecting rod 28, the top of the second connecting rod 28 is fixedly connected to the bottom of the side wall of the sleeve rod 14;

[0059] The telescopic column 21 has a top that is fixedly connected to the bottom of the first connecting rod 2, and a side wall of the telescopic column 21 that is fixedly connected to the bottom of the second connecting rod 28;

[0060] The tripod 22 is disc-shaped, and the center of its top is fixedly connected to the bottom of the telescopic column 21;

[0061] The first connecting rod 2 and the second connecting rod 28 are arranged in parallel and have the same length, and are perpendicular to the telescopic column 21 and the sleeve rod 14;

[0062] It should be understood that the supporting assembly is a tripod, which is used to fix the entire device and ensure the stability of the device during the sampling process. The three legs of the tripod are retractable to facilitate leveling the base to adapt to various uneven ground sampling environments in the field; the contact parts of the three legs with the ground are designed as discs with adjustable angles to increase the force-bearing area.

[0063] In some embodiments, the bracket assembly includes:

[0064] A first connecting column 6, the top of which is fixedly connected to the top of the side wall of the sleeve rod 14;

[0065] A second connecting column 7, the top of which is fixedly connected to the bottom of the side wall of the sleeve rod 14;

[0066] The support rod 15 has a bottom portion fixedly connected to the bottom of the second connecting column 7, a side wall of the support rod 15 is fixedly connected to the bottom of the first connecting column 6, and a top portion of the support rod 15 is fixedly connected to a rotating bearing 9;

[0067] The first connecting column 6 is arranged parallel to the first connecting rod 2 , and the second connecting column 7 is arranged parallel to the second connecting rod 28 . The first connecting column 6 and the second connecting column 7 are perpendicular to the support rod 15 and have the same length.

[0068] In some embodiments, the sampling assembly comprises:

[0069] The transmission column 13 has an outer diameter that matches the inner diameter of the sleeve rod 14. The transmission column 13 passes through the sleeve rod 14, and its side wall is slidably connected to the inner wall of the sleeve rod 14. The top of the transmission column 13 is connected to the power assembly;

[0070] The circular base 3 has a top center fixedly connected to the bottom of the transmission column 13, and the axis line coincides with the top center line. The circular base 3 has six circular holes 19 with internal threads arranged in an annular array.

[0071] There are multiple sampling tubes 41, which are hollow structures with openings at the top and bottom. The top of the side wall of the sampling tube 41 is provided with an external thread matching the internal thread of the circular hole 19. The top of the sampling tube 41 is threadedly connected to the circular hole 19, and the bottom of the sampling tube 41 is detachably connected to a ring blade 42.

[0072] It should be understood that the circular base 3 is in the shape of a disc, with 6 circular holes 19 with internal threads evenly distributed on it for fixing the sampling tube 41. During field sampling operations, a specific number of sampling tubes 41 can be installed as needed, and a maximum of 6 sampling tubes 41 can be installed at a time. According to experimental needs, sampling tubes 41 of different diameters can be configured through reducing joints, so that the samples taken out can be directly used for experiments without the need for secondary processing, thereby minimizing disturbance to the samples.

[0073] The bottom of the sampling tube 41 is fitted with a replaceable annular blade 42, whose inner diameter is slightly smaller than the inner diameter of the sample storage chamber in the middle of the tube 41. The top of the sampling tube 41 is made of tempered glass. During sampling, the top of the sampling tube 41 is open, allowing for real-time observation of the sample inside. After sampling is complete, the sampling tube 41 is removed, with the top slightly downward, and the sample is slowly poured out of the tube 41. After being wrapped in sealed plastic film, the sample is numbered and placed in a sample incubator.

[0074] Before sampling with the sampling tube 41 , vaseline may be applied to the inner wall of the sampling tube 41 in advance to prevent the frozen soil sample from freezing to the inner wall, which would make it difficult to remove the sample later.

[0075] In some specific embodiments, the power assembly includes:

[0076] The pressing assembly is arranged perpendicular to the support rod 15, and its top is connected to the rotating bearing 9. The pressing assembly can rotate around the rotating bearing 9;

[0077] The grooved roller 12 has a bottom connected to the top of the transmission column 13 , and a top roller end thereof abuts against the side wall of the pressing assembly.

[0078] It should be understood that the down-pressing assembly is a retractable multi-section steel pipe. When not in use, the multi-section steel pipe can be contracted into one length for easy carrying. When working in the field, the down-pressing assembly is adjusted to the required length, and the grooved roller 12 is fixed to the top of the transmission column 13 and can rotate with the swing of the down-pressing assembly.

[0079] In some specific embodiments, the pressing assembly includes:

[0080] A first support rod 16, the top of the first support rod 16 is connected to the rotating bearing 9, a cavity is provided inside the first support rod 16, an opening 17 is provided at one end of the first support rod 16 away from the rotating bearing 9, and a plurality of circular through holes 18 are provided on the side wall of the first support rod 16 symmetrically with the center point of the first support rod 16 as the axis, and the circular through holes 18 are connected to the inner cavity of the first support rod 16;

[0081] The second support rod 19, the outer diameter of the second support rod 19 matches the inner diameter of the first support rod 16, its left end enters the interior of the first support rod 16 through the opening 17, and its side wall is slidingly connected to the inner wall of the first support rod 16. Two grooves 20 are symmetrically arranged on one side wall near the left end of the second support rod 19 with the center point of the second support rod 19 as the axis. The grooves 20 and the circular through hole 18 are on the same straight line. A spring assembly is arranged in the groove 20, and the bottom of the spring assembly is fixedly connected to the bottom of the groove 20.

[0082] In some specific embodiments, the spring assembly includes:

[0083] A spring member 21, the bottom of the spring member 21 is fixedly connected to the bottom of the groove 20;

[0084] The outer diameter of the protrusion 22 matches the inner diameter of the circular through hole 18 . The top of the protrusion 22 can extend out of the first support rod 16 along the circular through hole 18 , and the bottom of the protrusion 22 is fixedly connected to the spring member 21 .

[0085] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A device for collecting alpine frozen soil samples, characterized in that: include: The sleeve rod is a hollow structure with openings at the top and bottom; A support assembly, wherein the support assembly comprises three support assemblies in a circular array with the sleeve rod as the axis, and the tops of the support assemblies are fixedly connected to the side walls of the sleeve rod; A bracket assembly, wherein the top of the bracket assembly is fixedly connected to the side wall of the sleeve rod; A sampling assembly, wherein the side wall of the sampling assembly is slidably connected to the inner wall of the sleeve rod; The top of the power assembly is rotatably connected to the support assembly.

2. The device for collecting alpine frozen soil samples according to claim 1, characterized in that: The sleeve rod is a cylindrical sleeve rod.

3. The device for collecting alpine frozen soil samples according to claim 1, characterized in that: The support assembly comprises: a first connecting rod, the top of which is fixedly connected to the top of the sleeve rod side wall; a second connecting rod, the top of which is fixedly connected to the bottom of the sleeve rod side wall; A retractable column, wherein the top of the retractable column is fixedly connected to the bottom of the first connecting rod, and the side wall of the retractable column is fixedly connected to the bottom of the second connecting rod; A tripod, the tripod is disc-shaped, and the center of its top is fixedly connected to the bottom of the retractable column; The first connecting rod and the second connecting rod are arranged in parallel and have the same length, and are perpendicular to the telescopic column and the sleeve rod.

4. The device for collecting alpine frozen soil samples according to claim 3, characterized in that: The bracket assembly includes: a first connecting column, the top of which is fixedly connected to the top of the sleeve rod side wall; a second connecting column, the top of which is fixedly connected to the bottom of the sleeve rod side wall; A support rod, wherein the bottom of the side wall of the support rod is fixedly connected to the bottom of the second connecting column, the side wall of the support rod is fixedly connected to the bottom of the first connecting column, and the top of the support rod is fixedly connected to a rotating bearing; The first connecting column is arranged parallel to the first connecting rod, the second connecting column is arranged parallel to the second connecting rod, the first connecting column and the second connecting column are perpendicular to the support rod and have the same length.

5. The device for collecting alpine frozen soil samples according to claim 4, characterized in that: The sampling assembly comprises: A transmission column, wherein the outer diameter of the transmission column matches the inner diameter of the sleeve rod, the transmission column passes through the sleeve rod, the side wall of the transmission column is slidably connected to the inner wall of the sleeve rod, and the top of the transmission column is connected to the power assembly; A circular base, wherein the center of the top of the circular base is fixedly connected to the bottom of the transmission column, and the axis line coincides with that of the base, and the circular base is provided with six circular holes with internal threads in an annular array; There are multiple sampling cylinders, which are hollow structures with openings at the top and bottom. The top of the side wall of the sampling cylinder is provided with an external thread that matches the internal thread of the circular hole. The top of the sampling cylinder is threadedly connected to the circular hole, and the bottom of the sampling cylinder is detachably connected with a ring blade.

6. The device for collecting alpine frozen soil samples according to claim 5, characterized in that: The power assembly includes: A pressing assembly, the pressing assembly being arranged perpendicular to the support rod, the top of the pressing assembly being connected to the rotating bearing, and the pressing assembly being rotatable around the rotating bearing; A grooved roller, wherein the bottom of the grooved roller is connected to the top of the transmission column, and the top roller end thereof abuts against the side wall of the pressing assembly.

7. The device for collecting alpine frozen soil samples according to claim 6, characterized in that: The pressing assembly comprises: a first support rod, wherein the top of the first support rod is connected to the rotating bearing, a cavity is provided inside the first support rod, an opening is provided at one end of the first support rod away from the rotating bearing, and a plurality of circular through holes are provided on the side wall of the first support rod symmetrically about the center point of the first support rod, and the circular through holes are connected to the inner cavity of the first support rod; The second support rod, the outer diameter of the second support rod matches the inner diameter of the first support rod, its left end enters the interior of the first support rod through the opening, and its side wall is slidingly connected to the inner wall of the first support rod. Two grooves are symmetrically arranged on one side wall of the second support rod near the left end with the center point of the second support rod as the axis, and the grooves are on the same straight line as the circular through hole. A spring assembly is arranged in the groove, and the bottom of the spring assembly is fixedly connected to the bottom of the groove.

8. The device for collecting alpine frozen soil samples according to claim 7, characterized in that: The spring assembly comprises: a spring member, wherein the bottom of the spring member is fixedly connected to the bottom of the groove; The outer diameter of the protrusion matches the inner diameter of the circular through hole, the top of the protrusion can extend out of the first support rod along the circular through hole, and the bottom of the protrusion is fixedly connected to the spring member.

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