Soil sampling device

Abstract

The utility model discloses a soil sampling device and relates to the technical field of soil sampling. Comprising a pedal, a connecting rod and two handles, a fixed U-shaped plate and a movable U-shaped plate are arranged at the bottom end of the pedal, sampling cavities are formed in the opposite sides of the fixed U-shaped plate and the movable U-shaped plate, and a first gap is formed between side panel bodies of the fixed U-shaped plate and the movable U-shaped plate. The soil sampling device is provided with the fixed U-shaped plate, the movable U-shaped plate and the extrusion assembly, after the fixed U-shaped plate and the movable U-shaped plate are inserted into corresponding soil sampling positions, the pull rope is pulled upwards, the movable U-shaped plate moves towards one side of the fixed U-shaped plate, and the inner wall of the movable U-shaped plate extrudes the side surface of soil in the sampling cavity, so that the friction force between the movable U-shaped plate and the sampled soil is increased; when a user pulls the handle upwards, the friction force between the movable U-shaped plate and the sampled soil is large, so that the pulling force between the ground and the sampled soil can be overcome, the sampled soil can be conveniently taken out, and the soil sampling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, specifically a soil sampling device. Background Technology

[0002] Soil research can help us understand soil health and explore scientific questions. Soil research requires the analysis of soil composition, structure, physicochemical properties, etc. Therefore, soil sampling devices are needed in the process of soil research.

[0003] Chinese utility model patent, authorized announcement number "CN221745572U", discloses a soil sampling device to solve the problems that soil samples are not easy to fit into the sampling box when the sampling device is used, and the soil samples are easily damaged during sampling, making it inconvenient to use.

[0004] The above solution solves the technical problems mentioned in the background art. However, in practical applications, the above solution still has certain defects. For example, after the soil is filled into the sampling head, the soil at the bottom of the soil is not separated from the ground, and the friction between the soil inside the sampling head and the side wall of the sampling head is small. When the sampling head is lifted, the soil may not move with the sampling head and will not remain in the inner cavity of the sampling head, thus reducing the soil sampling efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a soil sampling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a soil sampling device, comprising a pedal, a connecting rod and two handles, wherein a fixed U-shaped plate and a movable U-shaped plate are provided at the bottom end of the pedal, a sampling cavity is formed on the opposite side of the fixed U-shaped plate and the movable U-shaped plate, and a first gap is formed between the side panels of the fixed U-shaped plate and the movable U-shaped plate.

[0007] The fixed U-shaped plate is fixed to the bottom end of the pedal, and the movable U-shaped plate is movably set at the bottom end of the pedal;

[0008] A vertical plate is formed at the bottom of the pedal on one side of the movable U-shaped plate. A pressing component is provided at the bottom of the vertical plate, which pushes the movable U-shaped plate toward the fixed U-shaped plate.

[0009] Preferably, a push plate is movably provided at the top of the sampling chamber, and a guide rod is fixed at the top of the push plate, with the guide rod being movably connected to the pedal;

[0010] A lead screw is movably connected to the top of the push plate. The lead screw is movably screwed to the connecting rod, and the connecting rod extends from the top of the lead screw.

[0011] Preferably, a number of transverse springs are fixed between the side panel of the movable U-shaped plate and the vertical plate.

[0012] Preferably, a blade is fixed to the side of the movable U-shaped plate facing the fixed U-shaped plate, and a second gap is formed between the blade tip and the side panel of the fixed U-shaped plate.

[0013] Preferably, the extrusion assembly includes a U-shaped groove formed at the bottom of the vertical plate, a rotating shaft movably connected between the side walls of the U-shaped groove, and a downwardly inclined pressure plate fixed on the shaft.

[0014] A support rod is fixed to one side of the pedal, and a through hole is opened on the support rod.

[0015] A pull rope is connected to the pressure plate, and the pull rope moves through the through hole. A brake lever is fixed to the top of the pull rope.

[0016] Preferably, a plurality of tension springs are fixed between the pressure plate and the vertical plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This soil sampling device is equipped with a fixed U-shaped plate, a movable U-shaped plate, and a squeezing assembly. After the fixed and movable U-shaped plates are inserted into the corresponding soil sampling positions, pulling the rope upwards causes the movable U-shaped plate to move towards the side of the fixed U-shaped plate. The inner wall of the movable U-shaped plate squeezes the side of the soil in the sampling chamber, increasing the friction between the movable U-shaped plate and the sampled soil. When the user pulls the handle upwards, the greater friction between the movable U-shaped plate and the sampled soil overcomes the tension between the ground and the sampled soil, making it easy to remove the sampled soil and improving soil sampling efficiency. Attached Figure Description

[0019] Figure 1 This is the left-side axial view of the present invention;

[0020] Figure 2 This is a half-sectional view of the present invention;

[0021] Figure 3 This is a connection diagram between the fixed U-shaped plate and the movable U-shaped plate of this utility model;

[0022] Figure 4 This is a detailed drawing of the extrusion assembly of this utility model.

[0023] In the diagram: 1. Pedal; 101. Vertical plate; 2. Fixed U-shaped plate; 3. Movable U-shaped plate; 301. Blade; 5. Horizontal spring; 6. Connecting rod; 701. Push plate; 702. Lead screw; 8. Handle; 901. Pressure plate; 902. Tension spring; 903. Pull rope; 904. Support rod; 905. Brake lever. 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] like Figures 1-4 As shown, this utility model provides a technical solution: a soil sampling device, including a pedal 1, a connecting rod 6, and two handles 8. The connecting rod 6 is fixed to the top of the pedal 1, and the two handles 8 are symmetrically connected to both sides of the connecting rod 6. A fixed U-shaped plate 2 and a movable U-shaped plate 3 are provided at the bottom of the pedal 1. The fixed U-shaped plate 2 is fixed to the bottom of the pedal 1, and the movable U-shaped plate 3 is movably disposed at the bottom of the pedal 1. In this solution, a dovetail groove or a center groove is provided at the bottom of the pedal 1, and correspondingly, the movable U-shaped plate 3... A dovetail block or a center block is fixed at the top to ensure that the movable U-shaped plate 3 can move along the bottom of the pedal 1. A sampling chamber is formed on the opposite side of the fixed U-shaped plate 2 and the movable U-shaped plate 3. When the pedal 1 is pressed down, the fixed U-shaped plate 2 and the movable U-shaped plate 3 are inserted into the soil. The soil to be sampled enters the sampling chamber. In addition, a first gap is formed between the side panels of the fixed U-shaped plate 2 and the movable U-shaped plate 3. It is understood that when the movable U-shaped plate 3 moves towards the side of the fixed U-shaped plate 2, the width of the first gap decreases.

[0026] In one specific embodiment of this solution, such as Figure 3 As shown, a blade 301 is fixed on the side of the movable U-shaped plate 3 facing the fixed U-shaped plate 2. A second gap is formed between the tip of the blade 301 and the side panel of the fixed U-shaped plate 2. The blade 301 is designed so that when the movable U-shaped plate 3 moves to the side facing the fixed U-shaped plate 2, the blade 301 can break the soil in the second gap, making it convenient to take out the sampled soil.

[0027] To ensure that the width of the second gap remains unchanged and to avoid adjusting the movable U-shaped plate 3 before sampling, several transverse springs 5 ​​are fixed between the side panel of the movable U-shaped plate 3 and the vertical plate 101.

[0028] A push plate 701 is movably installed at the top of the sampling chamber. A guide rod is fixed at the top of the push plate 701 to guide the push plate 701 vertically. The guide rod is movably connected to the pedal 1. A screw rod 702 is movably connected to the top of the push plate 701. The screw rod 702 is movably screwed to the connecting rod 6, and the connecting rod 6 extends from the top of the screw rod 702. A handwheel is fixed at the top of the screw rod 702. When the screw rod 702 rotates, it drives the push plate 701 to move downward. The push plate 701 pushes the soil taken out of the sampling chamber to facilitate the removal of the soil from the sampling chamber.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, a vertical plate 101 is formed at the bottom of the pedal 1 located on one side of the movable U-shaped plate 3. A pressing component is provided at the bottom of the vertical plate 101, which pushes the movable U-shaped plate 3 toward the fixed U-shaped plate 2.

[0030] Specifically, the extrusion assembly includes a U-shaped groove at the bottom of the vertical plate 101, a rotating shaft movably connected between the side walls of the U-shaped groove, a downwardly inclined pressure plate 901 fixed on the shaft, a support rod 904 fixed on one side of the pedal 1, a through hole on the support rod 904, a pull rope 903 connected to the plate of the pressure plate 901, the pull rope 903 movably passing through the through hole, and a brake lever 905 fixed to the top of the pull rope 903, the brake lever 905 being located directly below the handle 8. In this design, to ensure stable pushing force of the movable U-shaped plate 3, two extrusion assemblies are provided. To reset the pressure plate 901 and facilitate reuse of the device, several tension springs 902 are fixed between the pressure plate 901 and the vertical plate 101.

[0031] As a supplement to this solution, press down on pedal 1 until the fixed U-shaped plate 2 and the movable U-shaped plate 3 are inserted into the corresponding soil sampling positions. The user pulls the brake lever 905 with the hand holding handle 8 (similar to the braking action of a bicycle). When the rope 903 moves upward, it drives the pressure plate 901 to rotate along the axis of the rotating shaft. The plate of the pressure plate 901 near the movable U-shaped plate 3 is pressed against the side of the movable U-shaped plate 3, thereby driving the movable U-shaped plate 3 to move towards the fixed U-shaped plate 2 until the blade 301 contacts the side plate of the fixed U-shaped plate 2. During this process, the inner wall of the movable U-shaped plate 3 presses against the side of the soil in the sampling chamber, increasing the friction between the movable U-shaped plate 3 and the sampled soil. The user pulls the handle 8 upward. Due to the large friction between the movable U-shaped plate 3 and the sampled soil, it can overcome the pull between the ground and the sampled soil, thus making it easy to remove the sampled soil.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A soil sampling device, comprising a pedal (1), a connecting rod (6), and two handles (8), characterized in that: The bottom end of the pedal (1) is provided with a fixed U-shaped plate (2) and a movable U-shaped plate (3). A sampling cavity is formed on the opposite side of the fixed U-shaped plate (2) and the movable U-shaped plate (3). A first gap is formed between the side panels of the fixed U-shaped plate (2) and the movable U-shaped plate (3). The fixed U-shaped plate (2) is fixed to the bottom end of the pedal (1), and the movable U-shaped plate (3) is movably set at the bottom end of the pedal (1); A vertical plate (101) is formed at the bottom of the pedal (1) located on one side of the movable U-shaped plate (3). A pressing component is provided at the bottom of the vertical plate (101) to push the movable U-shaped plate (3) towards the fixed U-shaped plate (2).

2. The soil sampling device according to claim 1, characterized in that: A push plate (701) is movably provided at the top of the sampling chamber, and a guide rod is fixed at the top of the push plate (701). The guide rod is movably connected to the pedal (1). A lead screw (702) is movably connected to the top of the push plate (701). The lead screw (702) is movably screwed to the connecting rod (6), and the top of the lead screw (702) extends out of the connecting rod (6).

3. A soil sampling device according to claim 1, characterized in that: Several transverse springs (5) are fixed between the side panel of the movable U-shaped plate (3) and the vertical plate (101).

4. A soil sampling device according to claim 1, characterized in that: The movable U-shaped plate (3) has a blade (301) fixed on the side facing the fixed U-shaped plate (2), and a second gap is formed between the tip of the blade (301) and the side panel of the fixed U-shaped plate (2).

5. A soil sampling device according to claim 1, characterized in that: The extrusion assembly includes a U-shaped groove at the bottom of the vertical plate (101), a rotating shaft is movably connected between the side walls of the U-shaped groove, and a downwardly inclined pressure plate (901) is fixed on the shaft of the rotating shaft. A support rod (904) is fixed on one side of the pedal (1), and a through hole is provided on the rod body of the support rod (904); A pull rope (903) is connected to the plate body of the pressure plate (901). The pull rope (903) moves through the through hole and a brake lever (905) is fixed to the top of the pull rope (903).

6. A soil sampling device according to claim 5, characterized in that: Several tension springs (902) are fixed between the pressure plate (901) and the vertical plate (101).

Images