Soil sampling device for hydrogeological survey

Abstract

The utility model relates to the technical field of soil sampling, and discloses a soil sampling device for hydrogeological survey, which comprises a cylinder, a supporting mechanism mounted on the surface of the cylinder and a rotating screw rod in threaded connection through a threaded hole formed in the top of the cylinder, and a soil sampling component is mounted at the bottom end of the rotating screw rod. The soil sampling assembly comprises a shell sleeve fixedly installed at the bottom end of the rotating lead screw, a first sleeve shell and a second sleeve shell, the first sleeve shell and the second sleeve shell are arranged in the shell sleeve, multiple sets of limiting lock pins are fixed to the surface of the second sleeve shell, and limiting inserting grooves matched with the limiting lock pins are formed in the surface of the first sleeve shell; according to the soil sampling device for hydrogeological survey, through the soil sampling assembly, the integrity of a soil sample is kept, disturbance or damage to the structure, layer and composition of the soil is reduced to the maximum extent, the accuracy of soil analysis is improved, the actual situation of the soil in the natural state can be reflected more accurately, and therefore more reliable soil data is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, in particular to a soil sampling device for hydrogeological survey. Background Art

[0002] Soil sampling refers to the method of collecting soil samples, including the layout and sampling techniques of the samples. Before sampling, the profile should be repaired and cleaned, and the top layer of loose soil should be removed. Then, samples should be taken from the central typical part layer by layer from top to bottom.

[0003] Upon investigation, the disclosure (announcement) number CN218725504U discloses a soil sampling device for hydrogeological surveys. This technology discloses "including a base, a cylinder connected at the center of the base, a screw connected to the inner thread of the cylinder, a rotating plate connected to one end of the screw, and a sampling barrel rotatably connected to the other end of the screw; a positioning assembly is evenly connected to the base, the positioning assembly is used to improve the stability of the cylinder, one end of the sampling barrel is connected to a column, the other end of the screw is provided with a column slot, and the column and the column slot are rotatably connected. The technical solution has the following advantages: during operation, through the coordinated use of the screw, sampling barrel and positioning assembly, the stability of the sampling barrel during sampling can be improved by the positioning assembly, and the soil sampling process can be completed through the sampling barrel. "

[0004] When the above design is in use, although it can improve the stability of the sampling tube during sampling through the positioning component and complete the soil sampling process through the sampling tube, when the soil is taken out from the sampling tube, due to the integrated structural design of the sampling tube, when the soil is taken out of the sampling tube, it is easy to destroy the original structure of the soil, including its layer distribution and compaction, due to crushing. This may affect the analysis of the physical properties of the soil and may also cause the loss or death of biological samples in the soil, thereby affecting the assessment of soil biodiversity. Therefore, we propose a soil sampling device for hydrogeological survey to solve the above problems. Utility Model Content

[0005] In response to the deficiencies of the prior art, the utility model provides a soil sampling device for hydrogeological surveys, which solves the problem that, in the above-mentioned design, when soil is taken out of the sampling tube, due to the integrated structural design of the sampling tube, the original structure of the soil, including its layer distribution and compactness, is easily destroyed due to crushing. This may affect the analysis of the physical properties of the soil and may also lead to the loss or death of biological samples in the soil, thereby affecting the assessment of soil biodiversity.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A soil sampling device for hydrogeological survey, comprising a cylinder, a support mechanism mounted on the surface of the cylinder, and a rotating screw threadedly connected through a threaded hole provided on the top of the cylinder, wherein a soil sampling assembly is mounted on the bottom end of the rotating screw;

[0007] The soil-taking assembly includes a housing sleeve fixedly mounted on the bottom end of the rotating screw and a first housing and a second housing disposed inside the housing sleeve;

[0008] The surface of the second housing is fixed with a plurality of limit lock pins, and the surface of the first housing is provided with limit slots adapted to the limit lock pins;

[0009] The top of the shell one and the shell two are both fixedly installed with plug blocks, the top of the shell sleeve is provided with a socket adapted to the plug block, the interior of the plug block is slidably connected to a limit lock block, and symmetrically arranged springs are fixedly installed between the limit lock block and the plug block.

[0010] Preferably, when the limiting lock pin on the second sleeve is inserted into the limiting slot provided in the first sleeve, the second sleeve and the first sleeve are integrated into a sampling tubular structure, and the outer diameter of the tubular structure is adapted to the inner diameter of the housing sleeve.

[0011] Preferably, a sliding groove adapted to the limiting locking block is provided on the surface of the inserting block, and the limiting locking block and the inserting block are slidably connected via the sliding groove.

[0012] Preferably, strip plates are fixed on the surfaces of both the second and first shells, and the inner side walls of the shells are provided with strip grooves adapted to the strip plates. When the strip plates are inserted into the strip grooves of the shells, the plug blocks and the sockets correspond.

[0013] Preferably, the outer side of one end of the shell sleeve and the inner side of one end of the shell one and the shell two are both provided with beveled edges. The setting of the beveled edges can facilitate the insertion of the shell sleeve, the shell one and the shell two into the soil.

[0014] Preferably, one side edge of the limiting locking block is arranged to be inclined and chamfered.

[0015] Beneficial effects

[0016] The utility model provides a soil sampling device for hydrogeological survey. Compared with the existing technology, it has the following advantages:

[0017] The soil sampling device for hydrogeological survey maintains the integrity of soil samples through the soil sampling component, minimizes the disturbance or damage to the soil structure, layers and composition, improves the accuracy of soil analysis, and can more accurately reflect the actual situation of the soil in its natural state, thereby obtaining more reliable soil data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the cylinder and housing structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0021] Figure 4 This is a disassembly diagram of the housing sleeve, sleeve one and sleeve two structures of the utility model.

[0022] In the figure: 1. Cylinder; 2. Support mechanism; 3. Rotating screw; 4. Soil extraction assembly; 401. Housing sleeve; 402. Sleeve 1; 403. Sleeve 2; 404. Insert block; 405. Spring; 406. Limit lock block; 407. Limit lock pin; 408. Limit slot; 409. Socket; 410. Strip plate; 411. Bevel edge. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown:

[0025] A soil sampling device for hydrogeological survey comprises a cylinder 1, a support mechanism 2 mounted on the surface of the cylinder 1, and a rotating screw 3 threadedly connected through a threaded hole provided on the top of the cylinder 1.

[0026] In this embodiment: the existing device {publication (announcement) number}: CN218725504U discloses a soil sampling device for hydrogeological survey. The support mechanism 2 in this application document adopts the same technical means in this prior art. This technical means will not be described in detail here. This application makes further improvements to this existing subject. For details, please refer to the disclosed technology below; in order to solve the technical problems existing in this prior art, as disclosed in the background technology above, "when the above design is used, although the stability of the sampling tube during sampling can be improved by the positioning component, the soil sampling process is completed through the sampling tube. However, when the soil is taken out from the sample, due to the integrated structural design of the sampling tube, when the soil is taken out from the sampling tube, it is easy to be broken and destroy the original structure of the soil, including its layer distribution and compaction, which may affect the analysis of the physical properties of the soil, and may also cause the loss or death of biological samples in the soil, thereby affecting the assessment of soil biodiversity." In terms of use, this problem is obviously a real and relatively difficult problem to solve. In view of this, in order to solve this technical problem, a soil sampling component 4 is added to this application document.

[0027] More specifically:

[0028] like Figures 1-4 As shown:

[0029] A soil-taking assembly 4 is installed at the bottom end of the rotating screw 3. The soil-taking assembly 4 includes a housing 401 fixedly installed at the bottom end of the rotating screw 3 and a housing 1 402 and a housing 2 403 arranged inside the housing 401.

[0030] The surface of the second housing 403 is fixed with a plurality of limit lock pins 407, and the surface of the first housing 402 is provided with limit slots 408 adapted to the limit lock pins 407;

[0031] Insert blocks 404 are fixedly mounted on the top of both housing 1 402 and housing 2 403. A socket 409 is provided on the top of housing 401 to fit with insert blocks 404. A limit lock block 406 is slidably connected to the inside of insert blocks 404. Symmetrically arranged springs 405 are fixedly mounted between limit lock block 406 and insert blocks 404.

[0032] When the limiting lock pin 407 on the second shell 403 is inserted into the limiting slot 408 provided in the first shell 402, the second shell 403 and the first shell 402 are integrated into a sampling tubular structure, and the outer diameter of the tubular structure is adapted to the inner diameter of the housing 401;

[0033] A sliding groove adapted to the limiting locking block 406 is provided on the surface of the inserting block 404 , and the limiting locking block 406 and the inserting block 404 are slidably connected via the sliding groove.

[0034] In this embodiment, when using the soil sampling device for hydrogeological survey, the device is first placed in a designated sampling area via the support mechanism 2. The rotating screw 3 on the cylinder 1 is then rotated, thereby driving the housing 401, the first housing 402, and the second housing 403 to move downward synchronously until the housing 401 is inserted into the soil. At this time, the soil enters the sampling tube formed by the first housing 402 and the second housing 403. The rotating screw 3 is then rotated in the opposite direction to remove the housing 401 from the soil. When the soil is taken out for analysis:

[0035] Then, the screw rod 3 is rotated to drive the housing 401 to extend completely from the inside of the cylinder 1, and then the limit lock block 406 is pressed at the same time, so that the limit lock block 406 is completely moved to the inside of the plug block 404, and the limit lock block 406 compresses the spring 405. While pressing the limit lock block 406, the plug block 404 is pressed downward, so that the plug block 404 is disengaged from the socket 409 opened in the housing 401. At this time, the housing 2 403 and the housing 1 402 are partially extended from the housing 401, and then the housing 1 402 and the housing 403 are held by hand. The second shell 403 is pulled out from the shell sleeve 401, and then the second shell 403 is separated from the first shell 402. At this time, the limiting lock pin 407 on the second shell 403 is pulled out from the limiting slot 408 provided in the first shell 402, thereby presenting the sampled soil as a whole. Through this operation, the integrity of the soil sample is maintained, the disturbance or damage to the soil structure, layer and composition is minimized, the accuracy of soil analysis is improved, and the actual situation of the soil in its natural state can be more accurately reflected, thereby obtaining more reliable soil data.

[0036] Going further;

[0037] In an optional embodiment, a strip plate 410 is fixed to the surface of both the shell 2 403 and the shell 1 402, and a strip groove that matches the strip plate 410 is opened on the inner wall of the shell shell 401. When the strip plate 410 is inserted into the strip groove opened in the shell shell 401, the plug block 404 and the socket 409 correspond to each other.

[0038] In this embodiment: through the provision of the strip plate 410, when the sleeve 1 402 and the sleeve 2 403 are docked and closed, when the sleeve 1 402 and the sleeve 2 403 are inserted into the shell sleeve 401, the strip plate 410 is first inserted into the strip groove opened in the shell sleeve 401. At this time, the sleeve 1 402 and the sleeve 2 403 can be limited, so that the plug block 404 on the sleeve 1 402 and the sleeve 2 403 corresponds to the socket 409, so that the plug block 404 can be better and more accurately plugged into the socket 409 opened in the shell sleeve 401, further improving the installation efficiency.

[0039] Going further;

[0040] In an optional embodiment, a beveled edge 411 is provided on the outside of one end of the shell sleeve 401 and on the inside of one end of the shell 1 402 and the shell 2 403. The setting of the beveled edge 411 can facilitate the insertion of the shell sleeve 401, the shell 1 402 and the shell 2 403 into the soil.

[0041] In this embodiment, the purpose of setting the beveled edge 411 is to facilitate the shell sleeve 401, shell 1 402 and shell 2 403 to penetrate the material more easily when inserted into soil or other media for sampling, reduce insertion resistance, and thus improve sampling efficiency and the smoothness of the sampling process.

[0042] Going further;

[0043] In an optional embodiment, one side edge of the limiting locking block 406 is arranged to be inclined and chamfered.

[0044] In this embodiment: since one side of the limit lock block 406 is inclined and chamfered, when the limit lock block 406 contacts the socket 409 opened in the shell sleeve 401, the inclined chamfer can play a guiding role, so that the limit lock block 406 can be more easily aligned and slid into the predetermined position during the installation process, thereby reducing the installation difficulty and improving the assembly efficiency.

[0045] The working principle and use process of the present invention are as follows: when using the soil sampling device for hydrogeological survey, the device is first placed in the designated sampling area through the support mechanism 2, and then the rotating screw rod 3 on the cylinder 1 is rotated, thereby driving the shell sleeve 401, the shell 1 402 and the shell 2 403 to move downward synchronously until the shell sleeve 401 is inserted into the soil. At this time, the soil enters the sampling tube formed by the shell 1 402 and the shell 2 403, and then the rotating screw rod 3 is rotated in the opposite direction to remove the shell sleeve 401 from the soil. Then, when the soil is taken out for analysis, the rotating screw rod 3 is then rotated to drive the shell sleeve 401 to fully extend from the inside of the cylinder 1, and then the limit lock block 406 is pressed at the same time, so that the limit lock block 406 is fully moved to the inside of the insert block 404, and the limit lock block 406 is used to press the spring 405 While compressing and pressing the limit lock block 406, the plug block 404 is pressed downward so that the plug block 404 is disengaged from the socket 409 opened in the shell sleeve 401. At this time, the shell 2 403 and the shell 1 402 partially extend out from the shell sleeve 401. Then, the shell 1 402 and the shell 2 403 are pulled out from the shell sleeve 401 by hand, and then the shell 2 403 is separated from the shell 1 402. At this time, the limit lock pin 407 on the shell 2 403 is pulled out from the limit slot 408 opened in the shell 1 402, thereby presenting the sampled soil as a whole. Through this operation, the integrity of the soil sample is maintained, the disturbance or damage to the soil structure, layer and composition is minimized, the accuracy of soil analysis is improved, and the actual situation of the soil in its natural state can be more accurately reflected, thereby obtaining more reliable soil data.

[0046] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A soil sampling device for hydrogeological survey, comprising a cylinder (1), a support mechanism (2) mounted on the surface of the cylinder (1), and a rotating screw (3) threadedly connected through a threaded hole provided at the top of the cylinder (1), characterized in that: A soil taking assembly (4) is installed at the bottom end of the rotating screw rod (3); The soil-extracting assembly (4) comprises a housing sleeve (401) fixedly mounted on the bottom end of the rotating screw (3), and a first housing (402) and a second housing (403) arranged inside the housing sleeve (401); The surface of the second housing (403) is fixed with a plurality of limit lock pins (407), and the surface of the first housing (402) is provided with limit slots (408) adapted to the limit lock pins (407); The top ends of the housing 1 (402) and the housing 2 (403) are both fixedly mounted with plug blocks (404); the top end of the housing sleeve (401) is provided with a socket (409) adapted to the plug block (404); the interior of the plug block (404) is slidably connected to a limit lock block (406); and symmetrically arranged springs (405) are fixedly mounted between the limit lock block (406) and the plug block (404).

2. A soil sampling device for hydrogeological survey according to claim 1, characterized in that: When the limiting lock pin (407) on the second shell (403) is inserted into the limiting slot (408) provided in the first shell (402), the second shell (403) and the first shell (402) are integrated into a sampling tubular structure, and the outer diameter of the tubular structure is adapted to the inner diameter of the housing sleeve (401).

3. A soil sampling device for hydrogeological survey according to claim 1, characterized in that: A sliding groove adapted to the position-limiting locking block (406) is provided on the surface of the inserting block (404), and the position-limiting locking block (406) and the inserting block (404) are slidably connected via the sliding groove.

4. A soil sampling device for hydrogeological survey according to claim 2, characterized in that: The surfaces of the second shell (403) and the first shell (402) are both fixed with strip plates (410), and the inner side wall of the housing sleeve (401) is provided with a strip groove adapted to the strip plate (410). When the strip plate (410) is inserted into the strip groove provided in the housing sleeve (401), the insert block (404) and the socket (409) correspond to each other.

5. A soil sampling device for hydrogeological survey according to claim 4, characterized in that: The outer side of one end of the housing sleeve (401) and the inner sides of one end of the housing shell 1 (402) and the housing shell 2 (403) are both provided with beveled edges (411). The provision of the beveled edges (411) facilitates the insertion of the housing sleeve (401), the housing shell 1 (402) and the housing shell 2 (403) into the soil.

6. The soil sampling device for hydrogeological survey according to claim 1, characterized in that: One side edge of the limiting locking block (406) is arranged in an inclined chamfered manner.

Images