Sampling device for natural resource engineering

Abstract

The invention discloses a sampling device for natural resource engineering, and relates to the technical field of resource exploration. The device comprises an annular frame, a handle arranged on the frame, at least one soil sampling assembly, an adjusting assembly, a plurality of telescopic supporting legs and self-locking universal wheels. The soil sampling assembly comprises an outer shell, an inner shell and a worm-shaped soil sampling rod and is driven by a direct current motor II to rotate and sample; a spring buffering mechanism is arranged on the inner wall of the outer shell. The adjusting assembly comprises a connecting shell, teeth, a gear rod set and a first direct current motor, the connecting shell is driven by a synchronous transmission belt to slide along the arc-shaped guide rail, and multi-angle accurate adjustment of the soil sampling assembly is achieved. The telescopic supporting legs are adjustable in length and are provided with self-locking universal wheels, so that the device is suitable for uneven terrains. The device can accurately control the sampling position and angle, effectively avoids sample pollution, has the advantages of being convenient to operate, high in terrain adaptability, high in sampling efficiency and the like, and is suitable for field soil and sediment sampling operation.

Description

Technical Field

[0001] This invention relates to the field of natural resource exploration and engineering technology, specifically to a sampling device for natural resource engineering. Background Technology

[0002] In engineering practices such as natural resource surveys, environmental monitoring, and agricultural geology, it is often necessary to collect soil or sediment samples from different depths and locations for laboratory analysis.

[0003] Existing sampling devices mostly use manual or simple mechanical drives, which have the following prominent problems: 1. Traditional devices usually rely on manual adjustment of the sampler angle and depth, which is inefficient and inaccurate, especially in complex terrain where it is difficult to guarantee the accuracy of the sampling points.

[0004] 2. During the sampling process, soil may spill or mix from the gaps in the soil sampling tools, leading to cross-contamination of the samples and affecting the reliability of the analysis results.

[0005] 3. Fixed supports are difficult to adapt to uneven ground, and the device is prone to shaking during sampling, causing the sampling rod to deviate from the predetermined trajectory. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a sampling device for natural resource engineering.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A sampling device for natural resource engineering, comprising: A frame, the frame including an annular frame and handles disposed thereon; At least one soil sampling component, the soil sampling component including an outer shell and a spiral soil sampling rod disposed therein; An adjustment component, mounted on the frame, is used to adjust the position of the soil sampling component; Multiple telescopic outriggers are distributed on the annular frame.

[0008] The soil sampling assembly also includes: An inner shell is fitted inside the outer shell, and the volute soil-collecting rod is spirally disposed inside the inner shell; A drive unit is used to drive the worm-shaped soil-collecting rod to rotate.

[0009] The drive unit includes a motor box installed inside the upper part of the outer casing and a second DC motor located inside the motor box. The output shaft of the second DC motor is connected to the worm gear for soil sampling.

[0010] The inner wall of the outer shell is provided with a groove, and a spring is provided in the groove, with one end of the spring abutting against the upper end of the inner shell.

[0011] The soil sampling assembly also includes a soil collection box located at the top of the outer shell and a cover plate covering the soil collection box, with a through groove at the lower end of the soil collection box.

[0012] A retaining ring is provided at the connection between the outer shell and the soil collection box to limit the position of the soil collection box.

[0013] The adjustment component includes: The connecting shell is slidably connected to the annular frame of the frame; The teeth are fixedly connected to both sides inside the connecting shell; Several gear sets are rotatably disposed within the connecting housing, and the gear sets mesh with teeth; Synchronous drive belts, wherein several synchronous drive belts are respectively sleeved between several gear sets; A DC motor is used to drive the gear set to rotate, and the DC motor is fixedly connected to the upper end of the annular frame; The outer shell and the connecting shell are detachably connected.

[0014] The ring frame, telescopic legs, and handle are all made of metal tubing, and the length of the telescopic legs is adjustable and can be fixed by locking components.

[0015] Each of the telescopic outriggers is fixedly connected to a self-locking caster wheel at its lower end.

[0016] The advantages of this invention compared to existing technologies are: 1. This invention can precisely control the spatial position and angle of the soil sampling component by adjusting the gear-tooth transmission and motor drive of the component, so as to adapt to different sampling needs.

[0017] 2. The worm-shaped soil sampling rod continuously lifts the soil into the soil collection box during rotation, and the through-slot design facilitates sample transfer and avoids spillage or contamination during the process.

[0018] 3. The combination of telescopic outriggers and self-locking casters allows for quick leveling and fixation on uneven ground, preventing the device from shifting during sampling.

[0019] 4. The DC motor drives the soil sampling and adjustment process, allowing a single person to complete depth and angle adjustments and sample collection, greatly improving field work efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional illustration of the present invention. Figure One ; Figure 2 This is a three-dimensional illustration of the present invention.Figure Two ; Figure 3 This is a three-dimensional schematic diagram of the internal structure of the adjustment component of the present invention; Figure 4 This is a three-dimensional schematic diagram of the adjustment component of the present invention. Figure One ; Figure 5 This is a three-dimensional schematic diagram of the adjustment component of the present invention. Figure Two ; Figure 6 This is a cross-sectional view of the adjustment component of the present invention. Figure One .

[0021] Figure 7 This is a cross-sectional view of the adjustment component of the present invention. Figure Two .

[0022] As shown in the figure: 1. Ring frame; 2. Handle; 3. Adjustment assembly; 301. Connecting shell; 302. Tooth; 303. Gear rod assembly; 304. Synchronous transmission belt; 305. DC motor one; 4. Soil sampling assembly; 401. Outer shell; 4011. Groove; 4012. Spring; 402. Snap ring; 403. Soil collection box; 4031. Through groove; 404. Cover plate; 405. Inner shell; 406. Worm-shaped soil sampling rod; 407. Motor box; 408. DC motor two; 5. Telescopic outriggers; 6. Self-locking casters. Detailed Implementation

[0023] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0024] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0025] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figures 1 to 7 As shown, this embodiment provides a sampling device for natural resource engineering. Its core design concept lies in achieving engineering sampling requirements such as precise and adjustable sampling location, complete and non-destructive sample collection, and strong terrain adaptability through a modular structure. The device adopts a ring-shaped frame main structure, equipped with an electrically driven adjustment mechanism and a soil-collecting mechanism, as well as an adjustable leveling support system, forming a complete sampling solution.

[0027] The device mainly includes a ring frame 1, a handle 2 fixed to the frame, an adjustment assembly 3, a soil sampling assembly 4, telescopic outriggers 5, and self-locking casters 6. The ring frame 1 is made of high-quality stainless steel tubing bent into a 180° arc shape, with an arc radius designed to be 800mm according to the sampling range requirements. The frame cross-section is a 40×40mm square tube to ensure overall structural rigidity. The handle 2 is welded to the center of the rear side of the frame, with a height of 1000mm designed ergonomically for easy gripping and pushing by the operator.

[0028] Four telescopic outriggers 5 are evenly distributed at the four corners of the bottom of the ring frame 1, and are connected by hinges to achieve a certain range of posture self-adaptation. Each telescopic outrigger 5 consists of an outer tube with a diameter of 50mm and an inner tube with a diameter of 42mm, with an adjustment range of 0-500mm. The tube wall is provided with adjustment holes spaced 10mm apart, and is fixed by a pin-type locking device. The self-locking swivel casters 6 are heavy-duty industrial casters with a diameter of 150mm, equipped with a foot-operated brake mechanism, and have a maximum load capacity of 200kg / unit.

[0029] Structure and principle of soil sampling component 4 As the core sampling mechanism, the design of the soil sampling component 4 is directly related to the sampling quality and efficiency. This component adopts a unique "double shell + spiral soil sampling rod" structure to ensure the continuity of the sampling process and the integrity of the sample.

[0030] Outer shell 401 and buffer system The outer shell 401 is forged from 7075 aluminum alloy. The interior of the shell has a precision-machined axial groove 4011, in which a high-strength stainless steel spring 4012 with a stiffness coefficient of 50 N / mm is installed.

[0031] The inner shell 405 is fitted inside the outer shell 401 and is made of 304 stainless steel thin-walled tubing with a wall thickness of 2mm. It fits the outer shell with a clearance. The bottom of the inner shell is machined with a 30° tapered entry angle for easy cutting into various types of soil. The upper end of the spring 4012 abuts against the upper flange of the inner shell 405 via a special washer, with a preload of 10mm, providing an initial preload force of approximately 500N. This buffer system can effectively absorb the impact load generated by obstacles such as stones encountered during sampling, protecting the sampling rod from damage.

[0032] 406 worm-shaped soil sampling rod and its transmission system The 406 worm-shaped soil sampling rod is a sampling execution component. It is made of 20CrMnTi alloy steel, forged as a whole and then carburized and quenched, with a surface hardness of HRC58-62. The outer diameter of the sampling rod is 76mm, the pitch is 60mm, the thread height is 6mm, the thread thickness is 8mm, and the helix angle is optimized to 15° according to the soil characteristics.

[0033] The drive system uses a DC motor 2408, rated voltage 24VDC, rated power 500W, maximum output torque 15N·m, equipped with a planetary gear reducer with a reduction ratio of 30:1. The motor is connected to an external power supply through a waterproof junction box, with an insulation class of IP67, suitable for humid outdoor environments. The motor output shaft is directly connected to the central shaft of the sampling rod via a spline coupling.

[0034] Soil collection system and sample collection The soil collection box 403 is injection molded from transparent polycarbonate material, with a volume of 2L and a wall thickness of 3mm. A through-slot 4031, 50mm wide and 150mm long, is cut into the side wall of the box. The retaining ring 402 uses a stainless steel elastic clamp structure with an inner silicone sealing strip to ensure a tight seal at the connection between the soil collection box and the outer shell 401. The cover 404 is connected to the soil collection box via a hinge and is equipped with a stainless steel latch locking device to prevent accidental opening during transportation.

[0035] Precision positioning mechanism of adjustment component 3 Adjustment component 3 is key to achieving multi-angle sampling, employing a "gear-rack + synchronous belt" transmission scheme to ensure the accuracy and reliability of position adjustment. For example... Figure 3 As shown, the organization mainly consists of the following parts: Arc-shaped guide rail and sliding mechanism The arc-shaped track of the annular frame 1 is formed by precision cold drawing, and the track cross-section has a dovetail structure. The working surface of the guide rail is treated with high-frequency quenching, and the hardness is above HRC55. The connecting shell 301 is made of ZL104 aluminum alloy casting, with a self-lubricating bronze bushing embedded inside, and a clearance of 0.1-0.2mm between it and the guide rail. The sliding of the connecting shell on the guide rail is guided by a special V-shaped roller set, with a friction coefficient of less than 0.05, ensuring smooth movement.

[0036] Transmission system Gear 302 is precision hobbed from 45# steel, with a module of 2, a pressure angle of 20°, and a tooth surface hardening degree of HRC48-52. The rack length is determined based on the circumference of the arc-shaped guide rail, with an effective stroke of 1500mm. Gear set 303 consists of 6 gear pairs, with gears made of 20CrMnTi, carburized and quenched, achieving a precision grade of 7. The gear shaft support uses double-row angular contact ball bearings with adjustable preload to ensure transmission accuracy.

[0037] The synchronous drive belt 304 uses a steel wire core rubber belt with an HTD8M tooth profile and a bandwidth of 30mm. The DC motor 305 is a DC servo motor with a rated power of 400W, equipped with a 17-bit absolute encoder and a positioning accuracy of ±0.1°. The motor achieves closed-loop position control through a PLC control system, and multiple commonly used sampling angles can be preset via a handheld terminal.

[0038] Telescopic outriggers 5 and leveling system The telescopic outrigger 5 adopts a double-sleeve structure, with an outer tube diameter of 60mm and a wall thickness of 3mm; the inner tube diameter is 48mm and the wall thickness is 2.5mm. The outrigger adjustment mechanism uses a quick-release pin device with a pin diameter of 10mm and a heat treatment hardness of HRC40-45. The bottom of the outrigger is equipped with a spherical hinge seat, allowing self-adaptive adjustment within a range of ±15°.

[0039] In practical use, move the device to the sampling point, release the universal wheel brakes, turn on the power, and after the system self-checks, enters standby mode. Adjust the length of the four telescopic outriggers 5 in sequence, depress all universal wheel brake locking devices, start the DC motor 305 of the adjustment component 3, and drive the soil sampling component 4 to move to the preset angle. After the position sensor confirms that it is in place, the DC motor 408 starts, driving the soil sampling rod 406 to rotate and drill down. Monitor the motor current in real time, and automatically reduce the feed speed when encountering hard layers. After reaching the preset depth, automatically raise the soil sampling rod to complete the sampling. Open the retaining ring 402, remove the soil collection box 403, transfer the sample to the sealed bag through the through groove 4031 and number it, clean the soil sampling rod and the soil collection box of residual soil, clean the residual soil on the spiral surface of the soil sampling rod after the operation, and check the lubrication of the gear transmission parts.

[0040] In the description of this specification, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A sampling device for natural resource engineering, characterized in that, include: The frame includes an annular frame (1) and a handle (2) disposed thereon. At least one soil sampling component (4), the soil sampling component (4) includes an outer shell (401) and a spiral soil sampling rod (406) disposed therein. Adjustment component (3), located on the frame, is used to adjust the position of soil sampling component (4); Multiple telescopic outriggers (5) are distributed on the annular frame.

2. The sampling device for natural resource engineering according to claim 1, characterized in that: The soil sampling assembly (4) also includes: The inner shell (405) is fitted inside the outer shell (401), and the volute soil-collecting rod (406) is spirally disposed inside the inner shell (405); A drive unit is used to drive the worm-shaped soil-collecting rod (406) to rotate.

3. The sampling device for natural resource engineering according to claim 2, characterized in that; The drive unit includes a motor box (407) installed above the inside of the outer casing (401) and a second DC motor (408) located inside the motor box (407). The output shaft of the second DC motor (408) is connected to the worm gear (406) for transmission.

4. The sampling device for natural resource engineering according to claim 2, characterized in that: The inner wall of the outer shell (401) is provided with a groove (4011), and a spring (4012) is provided in the groove (4011). One end of the spring (4012) abuts against the upper end of the inner shell (405).

5. The sampling device for natural resource engineering according to claim 2, characterized in that: The soil sampling assembly (4) also includes a soil collection box (403) located at the top of the outer shell (401) and a cover plate (404) covering the soil collection box (403). The lower end of the soil collection box (403) is provided with a through groove (4031).

6. The sampling device for natural resource engineering according to claim 5, characterized in that: A retaining ring (402) is provided at the connection between the outer shell (401) and the soil collection box (403) to limit the soil collection box (403).

7. The sampling device for natural resource engineering according to claim 1, characterized in that: The adjustment component (3) includes: The connecting shell (301) is slidably connected to the annular frame (1) of the frame; Teeth (302), the teeth (302) are fixedly connected to both sides inside the connecting shell (301); Several gear sets (303) are rotatably disposed within the connecting housing (301), and the gear sets (303) mesh with the teeth (302); Synchronous drive belts (304), several of which are respectively sleeved between several gear rod sets (303); A DC motor (305) is used to drive the gear set (303) to rotate. The DC motor (305) is fixedly connected to the upper end of the ring frame (1).

8. The sampling device for natural resource engineering according to claim 7, characterized in that: The outer shell (401) and the connecting shell (301) are detachably connected.

9. The sampling device for natural resource engineering according to claim 1, characterized in that: The ring frame (1), telescopic legs (5) and handle (2) are all made of metal tubing, and the length of the telescopic legs (5) is adjustable and can be fixed by locking components.

10. The sampling device for natural resource engineering according to claim 1, characterized in that: Each of the telescopic outriggers (5) is fixedly connected to a self-locking caster wheel (6) at its lower end.

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