Gravel soil layer sampling device

Abstract

The invention provides a gravel soil layer sampling device, and belongs to the technical field of exploration sampling. Comprising a pipe body and a counterweight pipe arranged at the top of the pipe body, a sampling pipe is slidably connected to the interior of the pipe body, a non-return mechanism is arranged in the sampling pipe and used for preventing sampled crushed soil and stone from falling off, and the non-return mechanism comprises a connecting rod arranged on the counterweight pipe and the sampling pipe in a penetrating mode and a crushing block fixed to the inner bottom side of the sampling pipe; the pipe body is pulled out, a crushed soil and stone sample in the sampling pipe is taken out, the crushed soil and stone sample can be directly sealed in the sampling pipe through the non-return mechanism, and the situation that sampling fails due to the fact that the sampled crushed stone and soil particles are likely to fall off from the sampling pipe when pulled out is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of exploration sampling, and particularly relates to a sampling device for gravel soil strata. Background Art

[0002] In various crossing projects of oil (gas) pipelines, it is important to accurately identify the burial depth and scope of gravel soil strata to provide reliable and real data for subsequent design and construction control of directional drilling.

[0003] In the prior art, the invention with the application number 202021123053.X provides an earth drill for soil sampling. Through the settings of a sleeve, external threads, and an outer ring, by nesting the outer ring on the sleeve corresponding to the bottom of the pipe sleeve and rotatably connecting through the external threads, it is convenient to increase the sleeve according to the required coating thickness for spiral sampling, ensuring the integrity and stratification of the sampled soil layer, and increasing the length according to the actual soil layer, which is relatively practical and suitable for wide promotion and use.

[0004] However, during actual use, the applicant found that the gravel soil stratum is composed of large - particle gravel and small - particle soil particles. Currently, the bottom of the sampling pipe is open - ended, resulting in the gravel and soil particles being easily detached from the sampling pipe due to dispersion when inserting into the soil layer for sampling and pulling out, thus causing sampling failure.

[0005] Therefore, the present application provides a sampling device for gravel soil strata to meet the requirements. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a sampling device for gravel soil strata, which can prevent gravel and soil particles from falling off the sampling pipe, ensure the success rate of sampling, and thus improve the sampling efficiency.

[0007] To solve the above - mentioned technical problem, the present invention provides the following technical solutions:

[0008] A sampling device for gravel soil strata, comprising:

[0009] A pipe body and a counterweight pipe placed at the top of the pipe body, and a sampling pipe is slidably connected inside the pipe body;

[0010] A non - return mechanism, which is placed inside the sampling pipe to prevent the crushed soil and stones from falling after sampling. The non - return mechanism includes a connecting rod penetrating through the counterweight pipe and the sampling pipe, and a crushing block fixed on the inner bottom side of the sampling pipe. A rotating block is rotatably connected to the crushing block, and a placement groove is opened on the side of the crushing block. A main connecting rod is fixed inside the placement groove, a sub - connecting rod is fixed on the rotating block, and a fan - shaped barrier cloth is arranged between the main connecting rod and the sub - connecting rod;

[0011] A notch is formed on the counterweight pipe, and a rocking wheel is fixed to the top of the connecting rod. The rocking wheel is placed in the notch to realize the opening and closing of the barrier cloth.

[0012] Optionally, the bottoms of the pipe body, the sampling pipe and the broken blocks, and the side of the secondary connecting rod are all blade-shaped structures, which can break larger stones or soil blocks, so that the crushed stones and soil particles can enter the interior of the sampling pipe.

[0013] Optionally, a slider is fixed to the outside of the sampling pipe, a chute is formed on the pipe body, and the slider is slidably connected to the inside of the chute. After sampling, the sampling pipe can be taken out from the inside of the pipe body through the cooperation of the chute and the slider, which is convenient for pouring the sampled sample of the sampling pipe.

[0014] Optionally, an anti-rotation bolt is threadedly connected to the counterweight pipe, and the anti-rotation bolt penetrates through the connecting rod, preventing the barrier cloth from closing due to shaking when the sampling pipe is pulled out, thereby causing the sampled sample to fall out of the sampling pipe and resulting in sampling failure.

[0015] Optionally, an impact block for placing an impact device is fixed to the top of the counterweight pipe, preventing the pipe body from being continuously pushed to the specified sampling depth by manpower.

[0016] Optionally, a fixing block is fixed to the side of the counterweight pipe, and a fixing component for fixing the sampling pipe is arranged between the fixing block and the slider, which can limit the check valve mechanism at the fixed position of the sampling pipe and prevent the check valve mechanism from slipping out of the interior of the sampling pipe.

[0017] Optionally, the fixing component includes a fixing bolt threadedly connected to the fixing block. The bottom of the fixing bolt is rotatably connected to a connecting block. The inside of the connecting block is rotatably connected to a fixing ring, and the fixing ring is installed on the slider. By rotating the fixing ring, the fixing ring is disengaged from the slider, so that the sampling pipe is no longer restricted by the fixing component and slides out of the pipe body.

[0018] Optionally, an opening is formed on the sampling pipe, and a plug is inserted into the opening, which can prevent large-volume crushed soil and stones from being stuck inside the sampling pipe and unable to be taken out. By taking out the plug from the opening, the large-volume sampled sample can be taken out.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] First, the crushed soil and stones are placed inside the sampling tube under the crushing and extrusion of the tube body, the counterweight tube, and the crushing block. Then, the rocker in the rotating notch drives the connecting rod rotating block. When the rotating block rotates, it drives the barrier cloth stored in the placement groove to open in a fan shape through the secondary connecting rod, so that the crushed soil and stones are sealed inside the sampling tube. Then, the tube body is pulled out, and the crushed soil and stone sample in the sampling tube is taken out. The check valve mechanism can directly seal the crushed soil and stone sample inside the sampling tube, effectively avoiding the situation of sampling failure caused by the easy falling off of the sampled gravel and soil particles from the sampling tube during extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the sampling device for gravel soil strata;

[0023] Figure 2 Schematic diagram of the structure of the sampling device for gravel soil strata;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the sampling tube;

[0025] Figure 4 Schematic diagram of the structure of the check valve mechanism;

[0026] Figure 5 For Figure 4 Enlarged view of the structure at A in

[0027] Figure 6 Schematic diagram of the structure of the fixing component;

[0028] Figure 7 Schematic diagram of the structure of the insertion block.

[0029] [Reference Signs]

[0030] 1, tube body; 2, counterweight tube; 21, fixing block;

[0031] 3, check valve mechanism; 31, connecting rod; 32, rocker; 33, crushing block; 34, placement groove; 35, rotating block; 36, main connecting rod; 37, secondary connecting rod; 38, barrier cloth; 39, positioning bolt;

[0032] 4, sampling tube; 41, slider; 42, insertion block;

[0033] 5, fixing component; 51, fixing bolt; 52, connecting block; 53, fixing ring;

[0034] 6, impact block; 7, anti-rotation bolt.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0036] The following describes in detail a gravel soil layer sampling device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0037] It should be noted that in the specification, the mention of "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicates that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, the implementation of such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0038] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0039] It can be understood that the meanings of "on...", "above...", and "over..." in the present invention should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0040] In addition, spatial relative terms such as "under", "below", "lower part", "above", "upper part", etc. may be used in this text for convenience of description to describe the relationship between one element or feature and another or more elements or features, as shown in the attached drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device other than the orientation depicted in the attached drawings. The device can be oriented in other ways, and the spatial relative descriptive words used in this text can be similarly interpreted accordingly.

[0041] As Figures 1-5 shown, an embodiment of the present invention provides a gravel soil layer sampling device, including a pipe body 1, a counterweight pipe 2 placed at the top of the pipe body 1, a sampling pipe 4, and a check mechanism 3. The sampling pipe 4 is slidably connected inside the pipe body 1. Through the setting of the counterweight pipe 2, the overall gravity is effectively increased, facilitating penetration into the crushed soil and stones;

[0042] The check mechanism 3 is placed inside the sampling pipe 4 to prevent the crushed soil and stones after sampling from falling. The check mechanism 3 includes a connecting rod 31 penetrating through the counterweight pipe 2 and the sampling pipe 4, and a crushing block 33 fixed to the inner bottom side of the sampling pipe 4. A rotating block 35 is rotatably connected to the crushing block 33, and a placement groove 34 is formed on the side of the crushing block 33. A main connecting rod 36 is fixed inside the placement groove 34, and a secondary connecting rod 37 is fixed to the rotating block 35. A fan-shaped barrier cloth 38 is arranged between the main connecting rod 36 and the secondary connecting rod 37. The barrier cloth 38 is made of a high-strength anti-cracking cloth with creases (such as: silica sand cloth, fiberglass polyester anti-cracking cloth, etc.);

[0043] A notch is formed on the counterweight pipe 2, and a rocking wheel 32 is fixed to the top of the connecting rod 31. The rocking wheel 32 is placed in the notch to realize the opening and closing of the barrier cloth 38.

[0044] Specifically, the pipe body 1 is placed in the gravel soil layer. The gravel soil first passes through the pipe body 1, the counterweight pipe 2, and is crushed and extruded by the crushing block 33, and then is placed inside the sampling pipe 4. Then, by rotating the rocking wheel 32 in the notch to drive the connecting rod 31 and the rotating block 35, when the rotating block 35 rotates, the barrier cloth 38 stored in the placement groove 34 is driven by the secondary connecting rod 37 to open in a fan shape, so that the gravel soil is sealed inside the sampling pipe 4. Then, the pipe body 1 is pulled out, and the gravel soil sample inside the sampling pipe 4 is taken out. Through the check mechanism 3, the gravel soil sample can be directly sealed inside the sampling pipe 4, effectively avoiding the situation of sampling failure caused by the easy falling of the sampled gravel and soil particles from the sampling pipe 4 when pulling out.

[0045] Among them, when the gravel and soil particles are stacked, the barrier cloth 38 may not be fully opened. The whole can be shaken to create a gap between the stacked gravel and soil particles, so as to fully open the barrier cloth 38 and achieve the purpose of fixing the sample inside the sampling pipe 4.

[0046] Among them, as Figures 1-4 shown, the bottoms of the pipe body 1, the sampling pipe 4, and the broken block 33 are all blade-shaped structures. By setting the bottoms of the sides of the pipe body 1, the sampling pipe 4, the broken block 33, and the auxiliary connecting rod 37 to be blade-shaped, larger stones or soil blocks can be broken, so that the crushed stones and soil particles can enter the inside of the sampling pipe 4.

[0047] The specific way in which the sampling pipe 4 is slidably connected inside the pipe body 1 is: as Figures 1-3 shown, a slider 41 is fixed on the outside of the sampling pipe 4, a chute is opened on the pipe body 1, and the slider 41 is slidably connected inside the chute. After sampling, the sampling pipe 4 can be taken out from the inside of the pipe body 1 through the cooperation of the chute and the slider 41, which is convenient for pouring the sampled material of the sampling pipe 4.

[0048] As Figures 2-4 shown, an anti-rotation bolt 7 is threadedly connected to the counterweight pipe 2, and the anti-rotation bolt 7 penetrates through the connecting rod 31. When closing the barrier cloth 38, by screwing the anti-rotation bolt 7 into the counterweight pipe 2 and passing through the connecting rod 31 in the notch and then fixing it on the counterweight pipe 2, the rotation of the connecting rod 31 is restricted, which can prevent the barrier cloth 38 from closing due to shaking when pulling out the sampling pipe 4, thereby causing the sampled material to fall out of the sampling pipe 4 and resulting in sampling failure.

[0049] As Figure 1 shown, an impact block 6 for placing impact equipment is fixed on the top of the counterweight pipe 2. By fixing the impact block 6 on the impact equipment, the pipe body 1 can be placed in the crushed stone and soil layer by the impact force brought by the impact equipment, which can prevent the pipe body 1 from not being continuously pushed to the specified sampling depth by manpower.

[0050] As Figure 1 shown, a fixing block 21 is fixed on the side of the counterweight pipe 2, and a fixing component 5 for fixing the sampling pipe 4 is arranged between the fixing block 21 and the slider 41. The sampling pipe 4 is fixed inside the pipe body 1 through the fixing component 5, thereby shortening the overall length and facilitating use and transportation.

[0051] Specifically, as Figure 1 and Figure 6As shown, the fixing component 5 includes a fixing bolt 51 threadedly connected to the fixing block 21. The bottom of the fixing bolt 51 is rotatably connected to a connecting block 52. The inside of the connecting block 52 is rotatably connected to a fixing ring 53, and the fixing ring 53 is installed on the slider 41. When fixing, by rotating the fixing bolt 51, the fixing bolt 51 rises in the fixing block 21. When rotating, the connecting block 52 is rotatably connected to the bottom of the fixing bolt 51, so that the connecting block 52 cannot rotate, preventing the situation where when the fixing bolt 51 drives the connecting block 52 to rotate, the connecting block 52 abuts against the pipe body 1, resulting in the fixing bolt 51 being unable to rotate. When the fixing bolt 51 rises, it drives the connecting block 52 and the fixing ring 53 to rise, so that the fixing ring 53 is engaged with the slider 41, so that the sampling pipe 4 cannot be detached from the inside of the pipe body 1. When disassembling, by rotating the fixing bolt 51, the fixing bolt 51 descends, causing the fixing ring 53 fixed on the slider 41 to descend, and then by rotating the fixing ring 53, the fixing ring 53 is disengaged from the slider 41, so that the sampling pipe 4 is no longer restricted by the fixing component 5 and slides out of the pipe body 1.

[0052] As Figure 2 and Figure 7 shown, the sampling pipe 4 is provided with an opening, and an insertion block 42 is inserted into the opening. By inserting the insertion block 42 into the opening, it is possible to prevent the situation where large-volume broken soil and stones are stuck inside the sampling pipe 4 and cannot be taken out. By taking out the insertion block 42 from the opening, it is possible to take out the large-volume sample.

[0053] The working principle provided by the present invention is that when in use, the pipe body 1 is placed in the broken soil and stone layer by the impact force brought by the impact device. The broken soil and stones are first placed inside the sampling pipe 4 under the crushing and extrusion of the pipe body 1, the counterweight pipe 2, and the crushing block 33;

[0054] By driving the connecting rod 31 and the rotating block 35 through the rocker 32 in the rotating notch, when the rotating block 35 rotates, the barrier cloth 38 stored in the placement groove 34 is driven by the secondary connecting rod 37 to open in a fan shape, so that the broken soil and stones are enclosed inside the sampling pipe 4, and then the pipe body 1 is pulled out;

[0055] By rotating the fixing bolt 51, the fixing bolt 51 descends, causing the fixing ring 53 fixed on the slider 41 to descend, and then by rotating the fixing ring 53, the fixing ring 53 is disengaged from the slider 41, so that the sampling pipe 4 is no longer restricted by the fixing component 5 and slides out of the pipe body 1;

[0056] Take out the broken soil and stone sample inside the sampling pipe 4;

[0057] By taking out the insertion block 42 from the opening, it is possible to take out the large-volume sample.

[0058] The present invention encompasses any alternatives, modifications, equivalent methods, and solutions that are within the spirit and scope of the present invention. For the purpose of enabling the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits, etc. are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0059] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A gravel soil layer sampling device, characterized in that: include: A tube body (1) and a weighted tube (2) placed on the top of the tube body (1), wherein a sampling tube (4) is slidably connected inside the tube body (1); A non-return mechanism (3), the non-return mechanism (3) is arranged inside the sampling tube (4) to prevent the broken soil and rocks from falling after sampling, the non-return mechanism (3) comprises a connecting rod (31) penetrating the counterweight tube (2) and the sampling tube (4) and a crushing block (33) fixed on the inner bottom side of the sampling tube (4), the crushing block (33) is rotatably connected to a rotating block (35), and a placement groove (34) is provided on the side of the crushing block (33), a main connecting rod (36) is fixed inside the placement groove (34), a secondary connecting rod (37) is fixed on the rotating block (35), and a fan-shaped barrier cloth (38) is provided between the main connecting rod (36) and the secondary connecting rod (37); The counterweight tube (2) is provided with a notch, and a rocking wheel (32) is fixed on the top of the connecting rod (31). The rocking wheel (32) is placed in the notch to realize the opening and closing of the barrier cloth (38).

2. The gravel soil layer sampling device according to claim 1, characterized in that: The bottoms of the tube body (1), the sampling tube (4), the crushing block (33) and the side edges of the auxiliary connecting rod (37) are all blade-shaped structures.

3. The gravel soil layer sampling device according to claim 1, characterized in that: A sliding block (41) is fixed on the outer side of the sampling tube (4), a sliding groove is provided on the tube body (1), and the sliding block (41) is slidably connected inside the sliding groove.

4. The gravel soil layer sampling device according to claim 1, characterized in that: An anti-rotation bolt (7) is threadedly connected to the counterweight tube (2), and the anti-rotation bolt (7) penetrates the connecting rod (31).

5. The gravel soil layer sampling device according to claim 1, characterized in that: An impact block (6) for placing an impact device is fixed on the top of the counterweight tube (2).

6. The gravel soil layer sampling device according to claim 3, characterized in that: A fixing block (21) is fixed to the side of the counterweight tube (2), and a fixing component (5) for fixing the sampling tube (4) is arranged between the fixing block (21) and the sliding block (41).

7. The gravel soil layer sampling device according to claim 6, characterized in that: The fixing assembly (5) comprises a fixing bolt (51) threadedly connected to a fixing block (21); the bottom of the fixing bolt (51) is rotatably connected to a connecting block (52); the interior of the connecting block (52) is rotatably connected to a fixing ring (53); and the fixing ring (53) is mounted on a sliding block (41).

8. The gravel soil layer sampling device according to claim 1, characterized in that: The sampling tube (4) is provided with an opening, and an insert block (42) is inserted into the opening.

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