High-safety sampling device for geological exploration

Abstract

The utility model discloses a high-safety sampling device for geological exploration, which comprises a power head, the bottom of the power head is connected with a sampling drill rod, the bottom end of the sampling drill rod is provided with a drilling head, the sampling drill rod is internally provided with a sampling barrel, and a pressing cover is arranged at the top end of the sampling barrel in the sampling drill rod. The pressing cover is tightly attached to the top end of the sampling barrel, a leakage-proof device is installed at the bottom end of the sampling barrel and comprises a main body, the main body is matched with a barrel opening in the bottom end of the sampling barrel, the main body is connected with the barrel opening of the sampling barrel in an inserted connection mode, locking pieces are evenly arranged on the inner wall of the main body, barbs are evenly arranged on the surface of one side of each locking piece, and the locking pieces are matched with the barbs. And a user can conveniently and quickly replace the sampling barrel, so that the next sampling work can be quickly put into use. Meanwhile, the leakage-proof device is arranged at the bottom of the sampling barrel, so that the situation that a soil sample at the bottom falls off when the sampling drill rod is pulled out can be effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil sampling, and in particular relates to a sampling device for geological detection with high safety. Background Art

[0002] Soil sampling in geological exploration is to obtain underground geological information, evaluate mineral resources and guide drilling work. These sampling data are of great significance to geological research and resource utilization.

[0003] Among them, soil sampling is carried out in geological exploration to obtain underground geological information, which can determine the location and shape of hidden mineralized structures. Through soil sampling, the distribution and occurrence state of underground ore bodies can be understood, and then the location and shape of hidden mineralized structures can be determined, which is of great significance for the exploration and development of mineral resources. In the soil collection link of geological exploration, most of the current soil sampling equipment adopts the structure of a hollow drill rod. During the drilling process, the soil in the center is embedded in the drill rod through the downward pressure of the drill rod to complete the sampling; but the existing sampling device has obvious defects: the soil sample at the bottom is easy to fall off due to the lack of an effective leak-proof mechanism. Some devices with leak-proof mechanisms have high manufacturing costs and are inconvenient to remove the sample from the drill rod, which seriously affects the soil collection efficiency and hinders the secondary use of the sampling device. Therefore, the utility model proposes a sampling device for geological exploration, which is convenient for rapid secondary sampling after completing a sampling work. At the same time, it prevents the soil sample at the bottom from falling when the sampling drill rod is pulled out.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly safe sampling device for geological exploration, comprising a power head, a sampling drill rod connected to the bottom of the power head, a drill head arranged at the bottom end of the sampling drill rod, a sampling barrel arranged inside the sampling drill rod, a clamping cover arranged inside the sampling drill rod at the top end of the sampling barrel, the clamping cover is arranged close to the top end of the sampling barrel, a leak preventer is installed at the bottom end of the sampling barrel, the leak preventer comprises a main body, the main body and the barrel mouth of the sampling barrel are matched, and the main body and the barrel mouth of the sampling barrel are connected by plugging, the inner wall of the main body is evenly provided with locking plates, and the surface of one side of the locking plates is evenly provided with barbs.

[0006] As a preferred technical solution of the utility model, the sampling drill rod is a hollow structure, and the outer wall of the sampling tube is arranged in contact with the inner wall of the sampling drill rod.

[0007] As a preferred technical solution of the utility model, the plurality of locking pieces are all arranged to be inclined toward the inside of the sampling tube.

[0008] As a preferred technical solution of the utility model, the main body and the drilling head are both annular structures, the main body, the locking plate and the barb are an integrally formed structure, and the whole is made of PVC material.

[0009] As a preferred technical solution of the utility model, the power head and the top end of the sampling drill rod shaft are detachable structures.

[0010] As a preferred technical solution of the utility model, the sampling drill rod and the clamping cover are fastened and connected by screws.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model arranges a sampling tube inside the sampling drill rod, so that the soil sample can be easily taken out from the inside of the drill rod and properly stored after the sampling is completed. It is convenient for users to quickly replace the sampling tube, so that they can quickly start the next sampling work. At the same time, a leak preventer is arranged at the bottom of the sampling tube, which can effectively prevent the soil sample at the bottom from falling when the sampling drill rod is pulled out; the design of the leak preventer is not only low in cost, but also easy to produce, providing users with a convenient use experience. Compared with the existing sampling devices, the utility model brings higher efficiency and better convenience to the sampling work, and compared with the existing oblique drilling head, the drilling head of the utility model adopts an annular flat bottom structure, which improves a certain degree of safety and prevents accidental contact and puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the sampling drill rod in the utility model;

[0015] Figure 2 It is an enlarged structural schematic diagram of A in the utility model;

[0016] In the figure: 1. power head; 2. sampling drill rod; 3. drilling head; 4. sampling tube; 5. clamping cover; 6. main body; 7. locking plate; 8. barb. DETAILED DESCRIPTION

[0017] 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.

[0018] Example

[0019] See also Figure 1-2 The utility model provides the following technical solutions: a highly safe sampling device for geological exploration, including a power head 1, a sampling drill rod 2, a drilling head 3, a sampling barrel 4, a clamping cover 5 and a leak preventer; the power head 1 is used as the power source of the device, and its driving mode can be manual screwing or hammering, or a mechanical vibration static pressure mode can be selected. This description does not limit the specific selection of the above power mode, which is based on meeting the actual application needs, and the above power modes are all existing structures and are not repeated here; the power head 1 realizes the function of soil drilling through the connection with the sampling drill rod 2 at the bottom; the bottom end of the sampling drill rod 2 is equipped with a drilling head 3 to ensure that it can smoothly penetrate the soil for sampling; in order to effectively store the soil samples and facilitate subsequent rapid retrieval, a sampling barrel 4 is arranged inside the sampling drill rod 2; the outer wall of the sampling barrel 4 fits tightly with the inner wall of the sampling drill rod 2, ensuring that the soil sample can accurately enter the sampling barrel 4 during the drilling process; at the top of the sampling barrel 4, the sampling drill rod 2 A clamping cover 5 is provided inside, which is in close contact with the top of the sampling tube 4, effectively fixing the sampling tube 4 to prevent movement during drilling; in addition, a leak preventer is installed at the bottom of the sampling tube 4 to prevent leakage of the bottom soil sample when the sampling drill rod 2 is pulled out; the leak preventer is composed of a main body 6, which matches the bottom end of the sampling tube 4 and is connected by plug-in, so as to facilitate replacement when damaged; locking plates 7 are evenly provided on the inner wall of the main body 6, and barbs 8 are evenly distributed on one side surface of the locking plates 7; these locking plates 7 and barbs 8 work together to effectively fix the soil sample at the bottom, ensuring the accuracy and reliability of sampling.

[0020] In order to ensure that the sampling tube 4 can be smoothly inserted into the soil, in this embodiment, as a preferred technical solution of the utility model, the plurality of locking pieces 7 are all arranged to be inclined toward the inside of the sampling tube 4 .

[0021] In order to ensure that the leak preventer as a whole has a certain toughness, and the drilling head 3 is a flat-bottomed annular structure, in this embodiment, as a preferred technical solution of the utility model, the main body 6 and the drilling head 3 are both annular structures, and the main body 6, the locking plate 7 and the barb 8 are an integrally formed structure, and the whole is made of PVC material.

[0022] In order to facilitate the removal of the sampling tube 4, in this embodiment, as a preferred technical solution of the utility model, the power head 1 and the top end of the sampling drill rod 2 are detachable structures.

[0023] In order to facilitate the removal of the pressing cover 5, in this embodiment, as a preferred technical solution of the utility model, the sampling drill rod 2 and the pressing cover 5 are fastened and connected by screws.

[0024] In summary, with the help of the above technical solution of the utility model, when in use, the power source is provided to the sampling drill rod 2 by means of the power head 1, and the sampling drill rod 2 slowly sinks into the deep soil with the help of the power source of the power head 1. When drilling deep into the soil, due to the hollow structure of the drilling probe 3 at the bottom of the sampling drill rod 2, the soil located at the center of the drilling probe 3 will directly enter the sampling tube 4 from the annular center of the drilling probe 3 and the leak preventer body 6. At the same time, under continued drilling, the soil at the bottom will gradually push the upper soil to the top of the sampling tube 4. After drilling to the target depth, with the help of the dynamic The power head 1 rotates the sampling drill rod 2 left and right to separate the soil sample from the soil matrix, and then pulls out the sampling drill rod 2 to complete the sampling work; and the leak preventer arranged at the bottom of the sampling tube 4 will squeeze the soil at the bottom to a certain extent during the process of pulling out the sampling drill rod 2, and the barbs 8 arranged on the inner side of the locking plate 7 will be embedded in the soil during the falling process of the soil to prevent the soil sample at the bottom from falling; after pulling out the sampling drill rod 2, remove the sampling drill rod 2 from the power head 1, then unscrew the screws on the clamping cover 5, and finally pour out the internal sampling tube 4.

[0025] Finally, it should be noted that in the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0026] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A highly safe sampling device for geological exploration, comprising a power head (1), characterized in that: The bottom of the power head (1) is connected to a sampling drill rod (2), the bottom end of the sampling drill rod (2) is provided with a drilling head (3), a sampling tube (4) is provided inside the sampling drill rod (2), a pressing cover (5) is provided inside the sampling drill rod (2) at the top end of the sampling tube (4), the pressing cover (5) is arranged close to the top end of the sampling tube (4), a leak preventer is installed at the bottom end of the sampling tube (4), the leak preventer comprises a main body (6), the main body (6) and the bottom end of the sampling tube (4) are matched, and the main body (6) and the tube end of the sampling tube (4) are connected by plugging, the inner wall of the main body (6) is evenly provided with locking plates (7), and the surface of one side of the locking plate (7) is evenly provided with barbs (8).

2. A highly safe sampling device for geological exploration according to claim 1, characterized in that: The sampling drill rod (2) is a hollow structure, and the outer wall of the sampling tube (4) is arranged to fit the inner wall of the sampling drill rod (2).

3. A highly safe sampling device for geological exploration according to claim 1, characterized in that: The plurality of locking pieces (7) are all arranged to be inclined toward the interior of the sampling tube (4).

4. A highly safe sampling device for geological exploration according to claim 1, characterized in that: The main body (6) and the drilling head (3) are both annular structures, and the main body (6), the locking plate (7) and the barb (8) are an integrally formed structure, and the whole is made of PVC material.

5. A highly safe sampling device for geological exploration according to claim 1, characterized in that: The power head (1) and the top end of the sampling drill rod (2) are detachable structures.

6. A highly safe sampling device for geological exploration according to claim 1, characterized in that: The sampling drill rod (2) and the pressing cover (5) are fastened together by screws.

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