A land resource sampling device

Abstract

The utility model relates to land resource sampling device technical field, and disclose a kind of land resource sampling device, including casing, motor and motor output end fixed connection's drill rod of casing inside fixed connection, the motor downside is provided with depth setting sampling mechanism and stable sampling mechanism, the depth setting sampling mechanism is arranged in stable sampling mechanism inboard, the depth setting sampling mechanism includes volute, the volute fixed connection is in drill rod outer wall, the drill rod lower end is fixedly connected with bending knife, the drill rod inside is provided with accommodation slot, the accommodation slot inside is slidably connected with cutting rod, the cutting rod upper end is fixedly connected with driven rod, the drill rod outer wall is fixedly connected with limit disc, the driven rod is slidably connected in limit disc inside, the depth setting sampling mechanism is for depth setting sampling, while the flexibility of sample is increased, the mechanism guarantees that sample can be taken out completely, the stable sampling mechanism is for assisting depth setting sampling mechanism to sample, guarantee the stability of sampling.

Description

Technical Field

[0001] This utility model relates to the technical field of land resource sampling devices, specifically a land resource sampling device. Background Technology

[0002] Land resource sampling devices, as fundamental tools for environmental monitoring, agricultural research, and geological exploration, are portable designs centered on lightweight and ease of operation. They typically consist of a detachable sampling tube, a manually operated component (such as a rotary handle or impact hammer), and a depth scale, suitable for rapid sampling from top to shallow soil layers. These devices embed the hollow sampling tube into the soil layer through manual rotation or hammering, using the tube wall to cut the soil and form a columnar sample. Functionally, they can meet the preliminary analysis of conventional soil texture, moisture content, and pollutants, and can be adapted to sampling tubes of different diameters to handle common matrices such as sandy soil and clay. Sampling depth depends on the operator's strength and experience. Hard soil layers or gravel layers can easily cause tube displacement or sample fragmentation, making it difficult to accurately obtain pure samples at a specified depth (e.g., when strictly distinguishing between 20 cm and 25 cm soil layers, mixing is common). Manual devices have limited driving force, resulting in a sharp drop in efficiency at depths exceeding 50 cm, and lack stable support structures, making them prone to tube deformation or sample detachment due to soil lateral pressure. Furthermore, sticky soil may remain inside the tube due to adsorption forces, affecting sample integrity. Therefore, while portable devices offer significant advantages for rapid field screening, they cannot replace the application needs of specialized drilling rigs in deep, high-precision stratification, or complex geological conditions.

[0003] The patent document with publication number "CN 217033134 U" states that "samples at different depths at the same location cannot be collected; then the soil loosened by the spiral blade 307 will enter through the sampling port 306." This patent document ensures that users can sample at different depths by opening the sampling port at a specific depth, which improves the flexibility of the device. However, the sampling speed of this device is slow and it cannot collect whole pieces of soil, which may lead to structural mixing and make it difficult to guarantee the detection accuracy. Moreover, this type of device usually does not have a stable support mechanism, and the device is prone to displacement when drilling underground, which may lead to sample damage or insufficient collection accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a land resource sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a land resource sampling device, comprising a housing, a motor fixedly connected inside the housing, and a drill rod fixedly connected to the output end of the motor. A fixed-depth sampling mechanism and a stable sampling mechanism are provided on the lower side of the motor, and the fixed-depth sampling mechanism is located inside the stable sampling mechanism.

[0006] The fixed-depth sampling mechanism includes a worm gear, which is fixedly connected to the outer wall of the drill rod. A curved cutter is fixedly connected to the lower end of the drill rod. A receiving groove is opened inside the drill rod, and a cutting rod is slidably connected inside the receiving groove. A driven rod is fixedly connected to the upper end of the cutting rod. A limiting plate is fixedly connected to the outer wall of the drill rod. The driven rod is slidably connected inside the limiting plate. A threaded sleeve and a threaded connecting plate are rotatably connected to the outer wall of the limiting plate. The threaded sleeve is disposed on the upper side of the threaded connecting plate. A threaded rod is slidably connected between the threaded sleeve and the threaded connecting plate. A nut is threadedly connected to the lower end of the threaded rod. The threaded sleeve and the threaded connecting plate are respectively threadedly connected to the driven rod. A screw sleeve is fixedly connected to the outer wall of the threaded sleeve.

[0007] Preferably, the drill rod has multiple evenly distributed grooves inside, the driven rod has a threaded groove on its outer wall, and the cutter lengths are different in different areas.

[0008] Preferably, the lower end of the cutting rod has an opening.

[0009] Preferably, the internal threads of the threaded sleeve and the threaded connecting disc belong to the same thread.

[0010] Preferably, the stable sampling mechanism includes a connecting rod, which is fixedly connected to the lower surface of the housing. A grip is fixedly connected to the lower end of the connecting rod, and the grip is rotatably connected to a rotating rod. Support platforms are fixedly connected to both sides of the grip, and a slide cylinder is fixedly connected to the lower side of the support platform. A spring is fixedly connected inside the slide cylinder, and a sliding plate is fixedly connected to the lower end of the spring. The sliding plate is slidably connected inside the slide cylinder. A support cylinder is fixedly connected to the lower surface of the sliding plate, and a rotating seat is rotatably connected to the lower end of the support cylinder. A slot is provided inside the rotating seat, and a gripping tooth is fixedly connected to the lower side of the rotating seat. An insert rod is slidably connected inside the support cylinder and the slot.

[0011] Preferably, the slots are evenly distributed inside the rotary seat.

[0012] Preferably, a protrusion is fixedly connected to one end of the insertion rod.

[0013] Compared with the prior art, this utility model provides a land resource sampling device, which has the following features:

[0014] Beneficial effects:

[0015] 1. The fixed-depth sampling mechanism is used for fixed-depth sampling. This mechanism can select the required depth to collect samples, which increases the flexibility of sampling. At the same time, the simple structure of the mechanism reduces the difficulty of manufacturing and maintenance. The mechanism also ensures that the sample can be completely removed, so that the original structure of the sample is preserved and the measurement accuracy is increased.

[0016] 2. The stabilizing sampling mechanism is used to assist the fixed-depth sampling mechanism in sampling. This mechanism can keep the fixed-depth sampling mechanism able to drill into the ground stably at a set angle, reduce the occurrence of equipment deviation during drilling, and ensure stable sampling. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0019] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the curved blade in this utility model;

[0022] Figure 5 This is a schematic diagram of the grip structure in this utility model.

[0023] In the diagram: 1. Housing; 2. Motor; 3. Drill rod; 4. Depth-fixed sampling mechanism; 401. Worm disc; 402. Curved cutter; 403. Receiving groove; 404. Cutting rod; 405. Driven rod; 406. Limiting disc; 407. Threaded sleeve disc; 408. Threaded connecting disc; 409. Threaded rod; 410. Nut; 411. Tightening sleeve; 5. Stabilizing sampling mechanism; 501. Connecting rod; 502. Grip; 503. Support platform; 504. Slide cylinder; 505. Spring; 506. Slide plate; 507. Support cylinder; 508. Rotary seat; 509. Slot; 510. Grip teeth; 511. Insertion rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Example 1:

[0027] This device is used for fixed-depth sampling and addresses the issue of insufficient or incomplete sampling by existing devices. (See also:) Figure 1-5 This utility model provides a technical solution: a land resource sampling device, including a housing 1, a motor 2 fixedly connected inside the housing 1 and a drill rod 3 fixedly connected to the output end of the motor 2, a fixed-depth sampling mechanism 4 and a stable sampling mechanism 5 are provided on the lower side of the motor 2, and the fixed-depth sampling mechanism 4 is located inside the stable sampling mechanism 5.

[0028] The fixed-depth sampling mechanism 4 includes a worm gear 401, which is fixedly connected to the outer wall of the drill rod 3. A curved cutter 402 is fixedly connected to the lower end of the drill rod 3. A receiving groove 403 is provided inside the drill rod 3. A cutting rod 404 is slidably connected inside the receiving groove 403. A driven rod 405 is fixedly connected to the upper end of the cutting rod 404. A limiting plate 406 is fixedly connected to the outer wall of the drill rod 3. The driven rod 405 is slidably connected inside the limiting plate 406. A threaded sleeve 407 and a threaded connecting plate 408 are rotatably connected to the outer wall of the limiting plate 406. The threaded sleeve 407 is located on the upper side of the threaded connecting plate 408. A threaded rod 409 is slidably connected between the threaded sleeve 407 and the threaded connecting plate 408. A nut 410 is threadedly connected to the lower end of the threaded rod 409. The threaded sleeve 407 and the threaded connecting plate 408 are respectively threadedly connected to the driven rod 405. A screw sleeve 411 is fixedly connected to the outer wall of the threaded sleeve 407.

[0029] Furthermore, the drill rod 3 has multiple evenly distributed grooves inside, the driven rod 405 has a threaded groove on its outer wall, and the cutter 402 in different areas has different lengths.

[0030] Furthermore, the lower end of the cutting rod 404 has an opening.

[0031] Furthermore, the internal threads of the threaded sleeve 407 and the threaded connecting disc 408 belong to the same thread.

[0032] Example 2:

[0033] This mechanism assists the fixed-depth sampling mechanism 4 in drilling. It provides stable support to the ground, enabling the device to drill steadily into the ground at a set angle. This mechanism solves the problem of insufficient drilling stability in existing devices. Please refer to [link / reference]. Figure 1-5 Furthermore, in conjunction with Embodiment 1, the stable sampling mechanism 5 includes a connecting rod 501, which is fixedly connected to the lower surface of the housing 1. A grip 502 is fixedly connected to the lower end of the connecting rod 501. The grip 502 is rotatably connected to the rotating rod. Support platforms 503 are fixedly connected to both sides of the grip 502. A slide cylinder 504 is fixedly connected to the lower side of the support platform 503. A spring 505 is fixedly connected inside the slide cylinder 504. A slide plate 506 is fixedly connected to the lower end of the spring 505. The slide plate 506 is slidably connected inside the slide cylinder 504. A support cylinder 507 is fixedly connected to the lower surface of the slide plate 506. A rotating seat 508 is rotatably connected to the lower end of the support cylinder 507. A slot 509 is provided inside the rotating seat 508. A gripping tooth 510 is fixedly connected to the lower side of the rotating seat 508. An insert rod 511 is slidably connected inside the support cylinder 507 and the slot 509.

[0034] Furthermore, the slots 509 are evenly distributed inside the rotary base 508.

[0035] Furthermore, a protrusion is fixedly connected to one end of the insertion rod 511.

[0036] In actual operation, when this device is used, the user transports the device to the sampling area. Then, the user uses the insertion rod 511 to limit the angle between the device and the ground. The user then starts the motor 2. When the motor 2 outputs, the worm gear 401 provides drilling force, and at the same time, the curved blade 402 cuts the soil. This keeps the sampling at the end of the drill rod 3 flat and facilitates drilling. When the drill rod 3 enters the area where the user wants to sample, the user can stop the output of the motor 2. Then, the user rotates the screw sleeve 411 to make the cutting rod 404 slide out of the storage groove. After the cutting rod 404 penetrates deep into the ground, it can completely cut the sample, thereby obtaining a complete soil sample at the predetermined depth.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A land resource sampling device, comprising a casing (1), a motor (2) fixedly connected inside the casing (1), and a drill rod (3) fixedly connected to the output end of the motor (2), characterized in that: The motor (2) is provided with a fixed-depth sampling mechanism (4) and a stable sampling mechanism (5) on its lower side, and the fixed-depth sampling mechanism (4) is located inside the stable sampling mechanism (5); The fixed-depth sampling mechanism (4) includes a worm gear (401), which is fixedly connected to the outer wall of the drill rod (3). A curved cutter (402) is fixedly connected to the lower end of the drill rod (3). A receiving groove (403) is provided inside the drill rod (3). A cutting rod (404) is slidably connected inside the receiving groove (403). A driven rod (405) is fixedly connected to the upper end of the cutting rod (404). A limiting plate (406) is fixedly connected to the outer wall of the drill rod (3). The driven rod (405) is slidably connected inside the limiting plate (406). A threaded sleeve (407) and a threaded connecting plate (408) are rotatably connected to the outer wall of the positioning plate (406). The threaded sleeve (407) is disposed on the upper side of the threaded connecting plate (408). A threaded rod (409) is slidably connected between the threaded sleeve (407) and the threaded connecting plate (408). A nut (410) is threadedly connected to the lower end of the threaded rod (409). The threaded sleeve (407) and the threaded connecting plate (408) are respectively threadedly connected to the driven rod (405). A screw sleeve (411) is fixedly connected to the outer wall of the threaded sleeve (407).

2. The land resource sampling device according to claim 1, characterized in that: The drill rod (3) has multiple evenly distributed grooves inside, and the driven rod (405) has a threaded groove on its outer wall. The cutter (402) in different regions has different lengths.

3. A land resource sampling device according to claim 1, characterized in that: The lower end of the cutting rod (404) has an opening.

4. A land resource sampling device according to claim 1, characterized in that: The internal threads of the threaded sleeve (407) and the threaded connecting disc (408) belong to the same thread.

5. A land resource sampling device according to claim 1, characterized in that: The stable sampling mechanism (5) includes a connecting rod (501), which is fixedly connected to the lower surface of the housing (1). A grip (502) is fixedly connected to the lower end of the connecting rod (501). The grip (502) is rotatably connected to a rotating rod. Support platforms (503) are fixedly connected to both sides of the grip (502). A slide cylinder (504) is fixedly connected to the lower side of the support platform (503). A spring (505) is fixedly connected inside the slide cylinder (504). 5) A slide plate (506) is fixedly connected to the lower end. The slide plate (506) is slidably connected inside the slide cylinder (504). A support cylinder (507) is fixedly connected to the lower surface of the slide plate (506). A rotating seat (508) is rotatably connected to the lower end of the support cylinder (507). A slot (509) is provided inside the rotating seat (508). A gripping tooth (510) is fixedly connected to the lower side of the rotating seat (508). A plug rod (511) is slidably connected inside the support cylinder (507) and the slot (509).

6. A land resource sampling device according to claim 5, characterized in that: The slots (509) are evenly distributed inside the rotary base (508).

7. A land resource sampling device according to claim 5, characterized in that: One end of the insertion rod (511) is fixedly connected to a protrusion.

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