Sampling device for environment detection
By integrating sampling and sieving mechanisms, the sampling device solves the problems of low sieving efficiency and sample contamination in traditional soil sampling methods, and achieves efficient and reliable soil testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional soil sampling methods require sampling and screening, which increases time and labor costs. Furthermore, sample transfer and processing are prone to confusion and contamination, affecting the reliability of test results.
A sampling device for environmental testing was designed, integrating sampling and sieving mechanisms. The device uses a rotating screw to collect samples and a coaxial reversing mechanism to drive the screen and stirring rod to rotate in opposite directions, thereby achieving sieving of soil samples during the sampling process and reducing the manual sieving step.
This improves detection efficiency, reduces operational steps in sample transfer and screening, and ensures the reliability and accuracy of test results.
Smart Images
Figure CN224019357U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to environmental detection technical field, concretely relates to a sampling device for environmental detection. BACKGROUND
[0002] Environmental detection is an important basis for environmental protection work, and it has vital significance for understanding environmental quality, assessing environmental pollution, tracking pollution sources and formulating effective environmental protection policies and measures. Through the detection of environmental elements such as air, water and soil, environmental problems can be found in time, and scientific basis can be provided for environmental protection and ecological balance. Among them, soil detection is the key to guarantee the stability of ecological environment, promote the sustainable development of agriculture and maintain human health.
[0003] In the soil detection work, sampling and analyzing the soil is a very important link, and the soil directly sampled from the ground may contain impurities such as stones, and the large stones and other impurities in the soil may affect the accuracy of soil chemical property detection. The traditional method needs to complete sampling first, and then take the sample back to the laboratory for screening and other pretreatment operations. The time cost and labor cost of detection are increased, and the sample may be confused and contaminated in the sample transfer and processing process, thereby affecting the reliability of the detection result. UTILITARIAN CONTENT
[0004] The utility model aims at providing a sampling device for environmental detection, which can screen the stones and other impurities in the soil sample while sampling.
[0005] In order to achieve the above purpose, the utility model adopts the technical scheme of a sampling device for environmental detection, which comprises a carrier, a sampling mechanism is arranged on the carrier, and a screening mechanism is arranged on one side of the sampling mechanism.
[0006] The sampling mechanism comprises a sampling cylinder, a screw rod is arranged in the sampling cylinder, the upper end of the screw rod is connected with a main shaft, the top end of the main shaft is connected with a motor, a main bevel gear is installed on the main shaft, a slave bevel gear is engaged with the main bevel gear, a transmission shaft passes through the middle of the slave bevel gear, and a coaxial reverse mechanism is installed at the end of the transmission shaft.
[0007] The screening mechanism comprises a screening box, the upper part of the screening box is a feeding hopper, the feeding hopper is installed on the sampling cylinder, a screen is arranged in the middle of the screening box, and a slave shaft passes through the middle of the screen.
[0008] The coaxial reverse mechanism comprises a shaft sleeve, the shaft sleeve is sleeved on the slave shaft, the lower end of the shaft sleeve is installed with an agitating rod, the agitating rod is located above the screen, the coaxial reverse mechanism can drive the screen and the agitating rod to rotate coaxially, and the rotating directions are opposite.
[0009] Furthermore, the coaxial reversing mechanism includes a fixed frame, a main drive wheel is installed in the middle of the fixed frame and is connected to the transmission shaft, a first driven wheel is installed at the upper end of the fixed frame and meshes with the main drive wheel, and a second driven wheel is installed at the lower end of the fixed frame and meshes with the main drive wheel. The first driven wheel and the second driven wheel are coaxial and installed opposite to each other on the fixed frame.
[0010] Furthermore, the first driven wheel is connected to the upper end of the driven shaft, and the lower end of the driven shaft is connected to the screen. The middle of the second driven wheel is through a shaft sleeve, and the driven shaft is sleeved inside the shaft sleeve. Several stirring rods are fixedly installed at the lower end of the shaft sleeve, and the stirring rods are distributed in a circumferential array along the central axis of the shaft sleeve.
[0011] Furthermore, the screen has an umbrella-shaped or conical structure, with a number of mesh holes and a number of raised ridges.
[0012] Furthermore, the outer ring of the screening box is provided with an impurity collection box, and several square holes are provided on the side wall of the screening box, through which stones enter the impurity collection box.
[0013] Furthermore, the lower end of the screening box is connected to a discharge hopper, and a corrugated pipe is connected below the discharge hopper. A perforation is provided on the mounting plate, through which the corrugated pipe passes. The lower end of the corrugated pipe is connected to a collection bottle, which is mounted on the carrier plate.
[0014] Furthermore, the spiral rod is provided with spiral blades, and a drill bit is installed at the top of the spiral rod.
[0015] Furthermore, the carrier includes a carrier plate, on which a cylinder is mounted. A mounting plate is fixed to the top of the cylinder, and a sampling mechanism is mounted on the mounting plate. When the cylinder extends or retracts, it drives the sampling mechanism to move vertically.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: After the device controls the carrier to move to the sampling point, it controls the motor to drive the screw rod to rotate and controls the cylinder to move downward. The drill bit rotates and cuts into the soil, and the soil is conveyed upward along the sampling cylinder through the spiral blades. The soil falls into the screening mechanism through the feed hopper for screening. While the motor is rotating, it can drive the transmission shaft to rotate through the meshing relationship between the main bevel gear and the driven bevel gear. The transmission shaft can drive the main drive wheel to rotate. When the main drive wheel rotates, it can drive the first driven wheel and the second driven wheel to rotate simultaneously, and make the first gear and the second gear rotate in opposite directions. Thus, through the driven shaft and the shaft sleeve, it drives the screen and the stirring rod to rotate in opposite directions. The soil is screened by the stirring rod and the screen. After sampling, the sampling mechanism is cleaned by the cleaning mechanism.
[0017] This invention can screen impurities such as stones in soil samples at the same time as sampling, reducing manual sample transfer and additional screening operations, and improving detection efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0020] Figure 3 This is a front view schematic diagram of the overall structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure at point A of this utility model;
[0022] Figure 5 This is a schematic diagram showing the connection relationship between the sampling mechanism and the screening mechanism of this utility model;
[0023] Among them, 10-box body, 11-carrier plate, 12-roller, 13-support leg, 14-cylinder, 15-mounting plate, 16-motor, 21-sampling cylinder, 22-spiral rod, 23-spiral blade, 24-drill bit, 25-feed hopper, 26-main shaft, 27-main bevel gear, 28-driven bevel gear, 29-drive shaft, 31-screen box, 32-screen, 33-driven shaft, 34-fixed frame, 35-main drive wheel, 36-first driven wheel, 37-second driven wheel, 38-shaft sleeve, 39-stirring rod, 40-discharge hopper, 41-corrugated pipe, 42-collection bottle, 43-impurity collection box, 44-water tank, 45-water pipe, 46-nozzle. 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 of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] See Figures 1 to 5 As shown, an environmental sampling device includes a carrier that serves as the support for the entire device and can be moved between different sampling locations. A sampling mechanism is mounted on the carrier, and a sieving mechanism is located on one side of the sampling mechanism to separate impurities such as stones from the soil. A cleaning mechanism is located on the other side of the sampling mechanism to remove residues adhering to the sampling mechanism after sampling, preventing cross-contamination of samples.
[0027] The aforementioned carrier includes a rectangular box 10, with a rectangular carrier plate 11 at the lower end of the box 10. A circular hole is located at the center of the carrier plate 11, through which the sampling mechanism can pass to take samples. Rollers 12 are installed on both sides of the carrier plate 11, enabling the carrier to move. Support legs 13 are installed at the four corners of the carrier plate 11, and the support legs 13 are retractable. During the movement of the carrier, the support legs 13 can be retracted to reduce obstruction during movement; when sampling is performed, the support legs 13 can be extended and supported on the ground to ensure the stability of the sampling process. Four cylinders 14 are installed on the carrier plate 11, located at the four corners of the carrier plate 11. A rectangular mounting plate 15 is fixed to the top of the cylinders 14, and a sampling mechanism is installed on the mounting plate 15. The cylinders 14 can drive the sampling mechanism to move vertically.
[0028] The sampling mechanism includes a cylindrical sampling tube 21 with a frustum-shaped upper end. The sampling tube 21 is fixedly connected to the mounting plate 15 via a bracket and is perpendicular to the mounting plate 15. A through hole is provided in the middle of the mounting plate 15, corresponding to a circular hole on the carrier plate 11. The sampling tube 21 passes through both the circular hole and the through hole. A spiral rod 22 is sleeved inside the sampling tube 21, and spiral blades 23 are provided on the spiral rod 22. The spiral rod 22 can rotate inside the sampling tube 21. A drill bit 24 is installed at the lower end of the spiral rod 22, which can cut into the soil when rotating. A main rotating shaft 26 is connected to the upper end of the spiral rod 22, and a motor 16 is connected to the top end of the main rotating shaft 26. During sampling, the motor 16 is started, which drives the spiral rod 22 and the drill bit 24 to rotate. At this time, the control cylinder 14 moves downward, the drill bit 24 rotates and cuts into the soil, and the soil is transported upward along the sampling tube 21 by the spiral blades 23. An inclined feed hopper 25 is connected to the upper end of the sampling cylinder 21. The feed hopper 25 is located on the side wall of the sampling cylinder and is connected to a screening mechanism. Soil can enter the screening mechanism through the feed hopper 25.
[0029] The screening mechanism includes a screening box 31, which is cylindrical with a conical discharge hopper 40 connected to its lower end. A feed hopper 25 is located above the screening box 31, with its outlet near the center of the screening box 31. Soil can fall into the screening box 31 near the center through the feed hopper 25. A screen 32 is installed inside the screening box 31 and can rotate within it. The screen 32 has an umbrella-shaped or conical structure and several mesh openings. A driven shaft 33 is vertically fixed to the center of the screen 32. The main rotating shaft 26 in the sampling mechanism and the driven rotating shaft 33 in the screening mechanism are linked by a set of gears.
[0030] Specifically, a main bevel gear 27 is installed on the main rotating shaft 26. The main bevel gear 27 is located between the sampling cylinder 21 and the motor 16. A driven bevel gear 28 meshes with the main bevel gear 27. A drive shaft 29 passes through the middle of the driven bevel gear 28. The central axis of the drive shaft 29 is perpendicular to the central axis of the main rotating shaft 26. The driven bevel gear 28 is located at one end of the drive shaft 29. A coaxial reversing mechanism is installed at the other end of the drive shaft 29.
[0031] Specifically, the coaxial reversing mechanism includes a fixed frame 34, which is fixedly connected to the housing 10 via a support arm. The fixed frame 34 is U-shaped with its opening facing the side. A fixed block is provided in the middle of the fixed frame 34, and a main drive wheel 35 is mounted on the fixed block. The main drive wheel 35 is connected to the transmission shaft 29. Fixed blocks are also provided at the upper and lower ends of the fixed frame 34. A first driven wheel 36 is mounted on the fixed block at the upper end of the fixed frame 34 and meshes with the main drive wheel 35. A first driven wheel 36 is mounted on the fixed block at the lower end of the fixed frame 34. The second driven wheel 37 also meshes with the main drive wheel 35. The first driven wheel 36 and the second driven wheel 37 are coaxial and mounted on the fixed frame 34. The first driven wheel 36 is connected to the upper end of the driven shaft 33, and the lower end of the driven shaft 33 is connected to the screen 32. The middle of the second driven wheel 37 is through a shaft sleeve 38. The driven shaft 33 is installed inside the shaft sleeve 38. Several stirring rods 39 are fixedly installed at the lower end of the shaft sleeve 38. The stirring rods 39 are arranged in a circumferential array along the central axis of the shaft sleeve 38.
[0032] When motor 16 drives main shaft 26 to rotate, main shaft 26 drives transmission shaft 29 to rotate through the meshing relationship between main bevel gear 27 and driven bevel gear 28. Transmission shaft 29 can drive main drive wheel 35 to rotate. When main drive wheel 35 rotates, it can drive first driven wheel 36 and second driven wheel 37 to rotate simultaneously. Since first driven wheel 36 and second driven wheel 37 are installed opposite to each other, their rotation directions are opposite. At this time, first driven wheel 36 drives screen 32 to rotate through driven shaft 33, and second driven wheel 37 drives stirring rod 39 to rotate through shaft sleeve 38, with screen 32 and stirring rod 39 rotating in opposite directions.
[0033] It should be noted that the stirring rod 39 is located above the screen 32 and at a certain distance from it. Several raised ridges are provided on the screen 32. When the stirring rod 39 rotates, it can push the soil forward. Upon contact with the raised ridges, it can break up lumpy and relatively loose soil. The broken soil can fall through the mesh into the discharge hopper 40 below, while stones will remain on the screen 32. Because the screen 32 is umbrella-shaped, the stones can move towards the edge of the screen 32. Simultaneously, the screen 32 is also rotating, and the stones, subjected to centrifugal force, also move towards the edge of the screen 32. The coaxial reverse rotation of the screen 32 and the stirring rod 39 can increase the soil screening efficiency.
[0034] A corrugated pipe 41 is connected below the discharge hopper 40. A perforation is provided on the mounting plate 15 through which the corrugated pipe 41 passes. The lower end of the corrugated pipe 41 is connected to a collection bottle 42, which is mounted on the carrier plate 11. Soil can fall into the collection bottle 42 through the corrugated pipe 41. An impurity collection box 43 is provided around the outer ring of the screening box 31. Several square holes are provided on the side wall of the screening box 31, through which stones can enter the impurity collection box 43. A cleaning mechanism is provided on the mounting plate 15. The cleaning mechanism includes a water tank 44, to which a water pipe 45 is connected. A nozzle 46 is connected to the top of the water pipe 45. The nozzle 46 extends from the top of the sampling cylinder 21. After sampling, the nozzle 46 is activated, and the motor 16 is controlled to drive the spiral rod 22 to rotate, cleaning the sampling mechanism.
[0035] Example: The operator controls the carrier to move to the sampling point, controls the motor 16 to drive the screw rod 22 to rotate, and controls the cylinder 14 to move downward. The drill bit 24 rotates and cuts into the soil, and the soil is conveyed upward along the sampling cylinder 21 through the spiral blades 23. The soil falls into the screening mechanism through the feed hopper 25 for screening. While the motor 16 is rotating, it can drive the transmission shaft 29 to rotate through the meshing relationship between the main bevel gear 27 and the driven bevel gear 28. The transmission shaft 29 can drive the main drive wheel 35 to rotate. When the main drive wheel 35 rotates, it can drive the first driven wheel 36 and the second driven wheel 37 to rotate simultaneously, and make the first driven wheel 36 and the second driven wheel 37 rotate in opposite directions. Thus, through the driven shaft 33 and the shaft sleeve 38, the screen 32 and the stirring rod 39 rotate in opposite directions. The soil is screened by the stirring rod 39 and the screen 32. After sampling, the sampling mechanism is cleaned by the cleaning mechanism.
[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.
Claims
1. A sampling device for environmental monitoring, characterized in that: Includes a carrier, on which a sampling mechanism is installed, and on one side of the sampling mechanism is a screening mechanism; The sampling mechanism includes a sampling cylinder, a spiral rod is installed inside the sampling cylinder, the upper end of the spiral rod is connected to a main rotating shaft, the top end of the main rotating shaft is connected to a motor, a main bevel gear is installed on the main rotating shaft, a driven bevel gear meshes with the main bevel gear, a transmission shaft passes through the middle of the driven bevel gear, and a coaxial reversing mechanism is installed at the end of the transmission shaft. The screening mechanism includes a screening box, a feeding hopper at the top of the screening box, the feeding hopper being installed on the sampling cylinder, a screen being installed in the middle of the screening box, and a rotating shaft passing through the middle of the screen. The coaxial reversing mechanism includes a rotating shaft sleeve that is fitted onto a rotating shaft. A stirring rod is installed at the lower end of the rotating shaft sleeve. The stirring rod is located above the screen. The coaxial reversing mechanism drives the screen and the stirring rod to rotate coaxially and in opposite directions.
2. The sampling device for environmental monitoring according to claim 1, characterized in that: The coaxial reversing mechanism includes a fixed frame, a main drive wheel is installed in the middle of the fixed frame and is connected to the transmission shaft, a first driven wheel is installed at the upper end of the fixed frame and meshes with the main drive wheel, and a second driven wheel is installed at the lower end of the fixed frame and meshes with the main drive wheel. The first driven wheel and the second driven wheel are coaxial and installed opposite to each other on the fixed frame.
3. The sampling device for environmental monitoring according to claim 2, characterized in that: The first driven wheel is connected to the upper end of the driven shaft, and the lower end of the driven shaft is connected to the screen. The middle of the second driven wheel is through a shaft sleeve, and the driven shaft is sleeved inside the shaft sleeve. Several stirring rods are fixedly installed at the lower end of the shaft sleeve, and the stirring rods are arranged in a circumferential array along the central axis of the shaft sleeve.
4. The sampling device for environmental monitoring according to claim 1, characterized in that: The screen has an umbrella-shaped or conical structure, with a number of mesh holes and a number of raised ridges.
5. A sampling device for environmental monitoring according to claim 1, characterized in that: The outer ring of the screening box is equipped with an impurity collection box, and several square holes are provided on the side wall of the screening box, through which stones enter the impurity collection box.
6. The sampling device for environmental monitoring according to claim 1, characterized in that: The lower end of the screening box is connected to a discharge hopper, and a corrugated pipe is connected below the discharge hopper. A perforation is provided on the mounting plate, through which the corrugated pipe passes. The lower end of the corrugated pipe is connected to a collection bottle, which is mounted on the carrier plate.
7. A sampling device for environmental monitoring according to claim 1, characterized in that: The spiral rod is equipped with spiral blades, and a drill bit is installed at the top of the spiral rod.
8. A sampling device for environmental monitoring according to claim 1, characterized in that: The carrier includes a carrier plate, on which a cylinder is mounted. A mounting plate is fixed to the top of the cylinder, and a sampling mechanism is mounted on the mounting plate. When the cylinder extends or retracts, it drives the sampling mechanism to move vertically.