Portable sample collection device for agricultural management

Abstract

The utility model relates to the technical field of sample collection, and discloses a portable agricultural management sample collection device which comprises a pressing rod, a sampling barrel is fixedly installed at the lower end of the pressing rod, two material blocking plates are arranged at the lower end of the sampling barrel, and the lower end of each material blocking plate is arranged to be in a wedge shape. According to the sample collecting device, by means of resistance of soil to the material baffles, the material baffles stop moving downwards after making contact with the soil, the sampling barrel continues moving downwards and makes contact with the inclined faces of the inner walls of the material baffles, the two material baffles move oppositely, and the sampling barrel is in a closed state when the two material baffles are attached to each other. The two telescopic rods are stretched, the lower ends of the two material baffles are located on the two sides of the sampling barrel respectively, the lower ends of the material baffles are flush with the lower end of the sampling barrel, the situation that a soil sample enters the sampling barrel is not affected, and when the sampling barrel moves upwards after sampling is completed, elastic force of the telescopic rods drives the two material baffles to move relatively, and the lower ends of the two material baffles recover the attaching state. A soil sample in the sampling barrel is prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to sample collection technical field, concretely is a portable sample collection device for agricultural management. BACKGROUND

[0002] The portable sample collection device for agricultural management mainly refers to a portable soil sampler, which is a portable tool specially designed for obtaining soil samples. It is widely used in soil research, environmental monitoring, agricultural research and other fields. In the field of agriculture, the portable soil sampler can be used to collect farmland soil samples to analyze the nutrient content, pH, organic matter content and other contents in the soil, providing scientific basis for agricultural production and field management. It has the advantages of small size, light weight, easy to carry and transport, and is very suitable for sampling work outdoors. It can quickly collect soil samples at multiple sampling points, improving sampling efficiency.

[0003] During actual use, the soil sampler may encounter some moist or relatively loose soil. The moist soil contains a high amount of water, which increases the flowability and gravity of the soil. When the sampler is inserted into the moist soil and attempts to extract the sample, the flowability of the soil weakens the friction between the soil and the inner wall of the sampler. During the lifting of the sampler, the gravity of the soil and the friction between the sampler and the soil are unbalanced, and the soil may slide off. The binding force between the particles of the relatively loose soil is weakened, and the soil is more susceptible to external forces and may deform or fall off, making it difficult for the sampler to sample moist or loose soil, or requiring repeated sampling work to collect a sufficient amount of soil sample. Therefore, we propose a portable sample collection device for agricultural management. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a portable sample collection device for agricultural management to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a portable sample collection device for agricultural management, comprising a pressure rod, a sampling cylinder is fixedly installed at the lower end of the pressure rod, two material blocking plates for blocking the sample in the sampling cylinder are symmetrically arranged at the lower end of the sampling cylinder, the lower end of each material blocking plate is wedge-shaped, and when the lower ends of the two material blocking plates are in close contact with each other, the lower end of the sampling cylinder is in a closed state, a sleeve is slidably installed on the sampling cylinder, two guide blocks are symmetrically fixedly installed on the sleeve, two sliding grooves for limiting the guide blocks are symmetrically arranged on the outer wall of the sampling cylinder, an elastic band is fixedly installed on the sleeve, and the upper end of each material blocking plate is fixedly connected with the elastic band.

[0006] Preferably, a threaded strip is fixedly installed on the outer wall of the pressing rod, a limiting piece matched with the threaded strip is sleeved on the pressing rod, and a pedal is arranged on the limiting piece.

[0007] Preferably, the pedal is rotatably installed on the limiting piece, a baffle for limiting the pedal is fixedly installed on one side of the limiting piece, an elastic strip is fixedly installed on the pedal, and a limiting groove for limiting the elastic strip is arranged on the limiting piece.

[0008] Preferably, a push rod is slidably installed in the pressing rod, the upper end of the push rod is located outside the pressing rod, a material discharging plate for pushing out the sample in the sampling cylinder is fixedly installed at the lower end of the push rod, the material discharging plate is located in the sampling cylinder, and a spring is fixedly connected between the push rod and the upper end of the sampling cylinder.

[0009] Preferably, a plurality of baffle strips made of elastic material are fixedly installed on the inner wall of the sampling cylinder, and the baffle strips are arranged in a multilayer spiral arrangement.

[0010] Preferably, the lower end of the sampling cylinder is arranged in a wedge shape to facilitate insertion into soil.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a sampling device for soil sample, which comprises a sampling cylinder, a pressing rod, a sleeve, two guide blocks, two stretchable rods and two material discharging plates, wherein the pressing rod is fixedly installed on the sampling cylinder, the sleeve is sleeved on the pressing rod, the two guide blocks are fixedly installed on the sleeve, the two stretchable rods are fixedly connected between the two guide blocks, and the two material discharging plates are fixedly installed on the lower ends of the two stretchable rods. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model;

[0014] Figure 2 It is the internal structure schematic diagram of the pressing rod of the utility model;

[0015] Figure 3 It is the structure schematic diagram of the limiting piece of the utility model;

[0016] Figure 4 Figure is sleeve and baffle plate structure schematic view of the utility model;

[0017] Figure 5 Figure is guiding block and chute structure schematic view of the utility model.

[0018] In the drawing: 1, pressing rod; 2, sampling cylinder; 3, push rod; 4, material return plate; 5, spring; 6, threaded strip; 7, limiting piece; 8, pedal; 9, baffle; 10, elastic strip; 11, limiting groove; 12, sleeve; 13, elastic belt; 14, baffle plate; 15, telescopic rod; 16, guiding block; 17, chute; 18, blocking strip. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-5The utility model provides a technical scheme: a portable sample collection device for agricultural management, including pressure rod 1, the lower end fixed installation of pressure rod 1 has the sampling cylinder 2, the lower end of sampling cylinder 2 is set into the wedge shape of being convenient for inserting into the soil, a plurality of elastic material's baffle 18 are fixedly installed on the inner wall of sampling cylinder 2, baffle 18 sets into multilayer spiral arrangement, baffle 18 can increase the friction between soil sample and the inner wall of sampling cylinder 2, make sampling cylinder 2 in the promotion process, soil sample is not easy to slip, the lower end of sampling cylinder 2 is symmetrically provided with two for blocking the baffle 14 of sample drop in sampling cylinder 2, the lower end of each baffle 14 is set into wedge shape, and when the lower end of two baffle 14 mutually sticks, can make the lower end of sampling cylinder 2 be in closed state, the sleeve 12 of sampling cylinder 2 is slidably installed, two guide blocks 16 are fixedly installed on the sleeve 12, two for guiding block 16 are symmetrically set on the outer wall of sampling cylinder 2 and are limited in the sliding groove 17, each baffle 14 is fixedly installed with telescopic link 15, the one end of each telescopic link 15 is fixedly connected to corresponding guide block 16, a circle elastic band 13 is fixedly installed on the sleeve 12, the upper end of each baffle 14 is fixedly connected with elastic band 13, after sampling cylinder 2 is aligned with sampling position, push down pressure rod 1, make sampling cylinder 2 drive baffle 14 to soil movement, baffle 14 will first contact with soil, and then baffle 14 is stopped downward movement by the resistance of soil, and sampling cylinder 2 continues to move downward, the inner wall inclined surface of baffle 14 is contacted to the lower end of sampling cylinder 2, make two baffle 14 carry out opposite movement, simultaneously, sleeve 12 drives two guide blocks 16 along sliding groove 17 and moves upward, and two telescopic links 15 are stretched, and elastic band 13 is also stretched, when guide block 16 moves to the top of sliding groove 17, sampling cylinder 2 will drive sleeve 12 and move to soil together, at this moment, the lower end of two baffle 14 is located at the two sides of sampling cylinder 2 respectively, and the lower end of baffle 14 is flush with the lower end of sampling cylinder 2, and does not affect soil sample to enter sampling cylinder 2, and then baffle 14 will enter soil together with sleeve 12 and sampling cylinder 2, because the lower end of baffle 14 is set into wedge shape, can reduce the resistance of baffle 14 in soil, and elastic band 13 can prevent soil from entering baffle 14 and affecting baffle 14 reset, when sampling cylinder 2 is finished sampling, pull up pressure rod 1, drive sampling cylinder 2 and move upward, baffle 14 is stopped upward movement first by the resistance of soil, along with sampling cylinder 2 upward movement, sleeve 12 will drive guide block 16 along sliding groove 17 and move downward reset, simultaneously, the elasticity of telescopic link 15 will drive two baffle 14 and carry out relative movement, and finally make the lower end of two baffle 14 restore close state, prevent soil sample in sampling cylinder 2 from falling, at this moment, guide block 16 will reset to the bottom of sliding groove 17, and then sampling cylinder 2 will drive sleeve 12 and baffle 14 and move upward together, can keep the integrity of soil sample in sampling cylinder 2.

[0021] The outer wall of the pressing rod 1 is fixedly provided with a threaded strip 6, the pressing rod 1 is sleeved with a limiting piece 7 matched with the threaded strip 6, the limiting piece 7 is rotatably provided with a pedal 8, one side of the limiting piece 7 is fixedly provided with a baffle 9 for limiting the pedal 8, the pedal 8 is fixedly provided with an elastic strip 10, the limiting piece 7 is provided with a limiting groove 11 for limiting the elastic strip 10, after the sampling cylinder 2 is inserted into the soil, the pressing rod 1 can be manually pressed downward, and the pedal 8 is pressed downward by the foot, the pedal 8 drives the limiting piece 7 and the pressing rod 1 to move downward through the limiting of the baffle 9 to the pedal 8 and the self-locking property of the thread, the pressing rod 1 drives the sampling cylinder 2 to move into the soil, and the position of the limiting piece 7 on the pressing rod 1 can be adjusted by rotating the limiting piece 7, so that the sampling cylinder 2 can enter the soil at different depths, and the pedal 8 is upwardly rotated to make the elastic strip 10 deform and be clamped into the limiting groove 11, the pedal 8 is fixed by being collected through the limiting of the elastic strip 10 by the limiting groove 11, when the pedal 8 needs to be used, the pedal 8 is downwardly rotated to make the elastic strip 10 deform, the limiting of the elastic strip 10 by the limiting groove 11 is released, one end of the pedal 8 abuts against one end of the baffle 9, and the pedal 8 cannot be continuously rotated, so that the pedal 8 can be stepped downward to assist the sampling cylinder 2 to enter the soil.

[0022] The pushing rod 3 is slidably installed in the pressing rod 1, the upper end of the pushing rod 3 is located outside the pressing rod 1, the lower end of the pushing rod 3 is fixedly provided with a material withdrawing plate 4 for pushing out the sample in the sampling cylinder 2, the material withdrawing plate 4 is located in the sampling cylinder 2, and the spring 5 is fixedly connected between the pushing rod 3 and the upper end of the sampling cylinder 2, when the sampling cylinder 2 is taken out from the soil, the sleeve 12 is upwardly pulled to make the two material blocking plates 14 oppositely move again, the soil sample is not affected to be poured out from the lower end of the sampling cylinder 2, and then the pushing rod 3 is pushed into the pressing rod 1 to drive the material withdrawing plate 4 to move downward from the top end of the sampling cylinder 2, so that the spring 5 is compressed, and the material withdrawing plate 4 can push out the soil sample in the sampling cylinder 2, after the soil sample is taken out, the pushing rod 3 is released, the elastic force of the spring 5 resets the pushing rod 3 and resets the material withdrawing plate 4 to the top end of the sampling cylinder 2.

[0023] Specifically, after the sampling cylinder 2 is aligned with the sampling position, the pressing rod 1 is pushed downward, so that the sampling cylinder 2 drives the material blocking plates 14 to move towards the soil. The material blocking plates 14 first contact the soil, and then stop moving downward due to the resistance of the soil. Meanwhile, the sampling cylinder 2 continues to move downward, and the lower end of the sampling cylinder 2 contacts the inner wall inclined surface of the material blocking plates 14, so that the two material blocking plates 14 move in opposite directions. Meanwhile, the sleeve 12 drives the two guide blocks 16 to move upward along the sliding grooves 17, and the two telescopic rods 15 are stretched, and the elastic belts 13 are also stretched. When the guide blocks 16 move to the top end of the sliding grooves 17, the sampling cylinder 2 drives the sleeve 12 to move into the soil. At this time, the lower ends of the two material blocking plates 14 are located on both sides of the sampling cylinder 2 respectively, and the lower ends of the material blocking plates 14 are flush with the lower end of the sampling cylinder 2, and do not affect the soil sample entering the sampling cylinder 2. Then, the material blocking plates 14 enter the soil together with the sleeve 12 and the sampling cylinder 2. Since the lower ends of the material blocking plates 14 are wedge-shaped, the resistance of the material blocking plates 14 in the soil can be reduced, and the elastic belts 13 can prevent the soil from entering the material blocking plates 14 from the upper end of the material blocking plates 14 and accumulating in the material blocking plates 14 to affect the resetting of the material blocking plates 14. When the sampling of the sampling cylinder 2 is completed, the pressing rod 1 is pulled upward to drive the sampling cylinder 2 to move upward. The material blocking plates 14 stop moving upward due to the resistance of the soil. With the upward movement of the sampling cylinder 2, the sleeve 12 drives the guide blocks 16 to move downward along the sliding grooves 17 to reset. Meanwhile, the elastic force of the telescopic rods 15 drives the two material blocking plates 14 to move relatively, and finally makes the lower ends of the two material blocking plates 14 return to the close state to prevent the soil sample in the sampling cylinder 2 from falling off. At this time, the guide blocks 16 are reset to the bottom end of the sliding grooves 17. Then, the sampling cylinder 2 drives the sleeve 12 and the material blocking plates 14 to move upward, so that the integrity of the soil sample in the sampling cylinder 2 can be maintained. After the sampling cylinder 2 is inserted into the soil, the pressing rod 1 can be manually pressed downward, and the foot is pressed downward on the pedal 8. The limiting of the pedal 8 by the baffle 9 and the self-locking property of the screw thread can drive the pedal 8, the limiting part 7 and the pressing rod 1 to move downward, so as to assist the pressing rod 1 to drive the sampling cylinder 2 to move into the soil. After the sampling cylinder 2 is taken out of the soil, the sleeve 12 is pulled upward to make the two material blocking plates 14 move in opposite directions again, so as not to affect the soil sample from being poured out from the lower end of the sampling cylinder 2. Then, the push rod 3 is pushed into the pressing rod 1 to drive the material removing plate 4 to move downward from the top end of the sampling cylinder 2, so that the spring 5 is compressed. The material removing plate 4 can push the soil sample in the sampling cylinder 2 out.

[0024] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0025] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A portable sample collection device for agricultural management, comprising a pressure bar (1), characterized in that: The lower end of the pressing rod (1) is fixedly installed with a sampling cylinder (2), the lower end of the sampling cylinder (2) is symmetrically provided with two material blocking plates (14) for blocking the sample in the sampling cylinder (2) from falling, the lower end of each material blocking plate (14) is provided in a wedge shape, and the lower ends of the two material blocking plates (14) can make the lower end of the sampling cylinder (2) in a closed state when abutting against each other, the sampling cylinder (2) is slidably installed with a sleeve (12), the sleeve (12) is symmetrically fixedly installed with two guide blocks (16), the sampling cylinder (2) is symmetrically provided with two sliding grooves (17) for limiting the guide blocks (16), each material blocking plate (14) is fixedly installed with an extension rod (15), one end of each extension rod (15) is fixedly connected to the corresponding guide block (16), the sleeve (12) is fixedly installed with a ring of elastic belts (13), and the upper end of each material blocking plate (14) is fixedly connected with the elastic belt (13).

2. The portable sample collection device for agricultural management according to claim 1, wherein: The outer wall of the pressing rod (1) is fixedly installed with a threaded strip (6), the pressing rod (1) is sleeved with a limiting piece (7) matched with the threaded strip (6), and the limiting piece (7) is provided with a pedal (8).

3. The portable sample collection device for agricultural management according to claim 2, wherein: The pedal (8) is rotatably installed on the limiting piece (7), one side of the limiting piece (7) is fixedly installed with a baffle (9) for limiting the pedal (8), the pedal (8) is fixedly installed with an elastic strip (10), and the limiting piece (7) is provided with a limiting groove (11) for limiting the elastic strip (10).

4. The portable sample collection device for agricultural management according to claim 1, wherein: The pressing rod (1) is slidably installed with a push rod (3), the upper end of the push rod (3) is located outside the pressing rod (1), the lower end of the push rod (3) is fixedly installed with a material returning plate (4) for pushing out the sample in the sampling cylinder (2), the material returning plate (4) is located in the sampling cylinder (2), and the push rod (3) and the upper end of the sampling cylinder (2) are fixedly connected with a spring (5).

5. The portable sample collection device for agricultural management according to claim 1, wherein: A plurality of blocking strips (18) made of elastic material are fixedly installed on the inner wall of the sampling cylinder (2), and the blocking strips (18) are arranged in multiple layers in a spiral manner.

6. The portable sample collection device for agricultural management according to claim 5, wherein: The lower end of the sampling cylinder (2) is provided in a wedge shape to facilitate insertion into the soil.

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