Shallow surface soil monitoring and sampling device

Abstract

The utility model relates to the technical field of soil sampling, in particular to a shallow surface soil monitoring and sampling device which comprises a fixed disc and a grip fixedly arranged on the outer surface of the fixed disc, a pin shaft is inserted in the center of the fixed disc, a rotary disc is rotatably arranged on the outer surface of the pin shaft, and a plurality of sampling barrels are fixedly mounted on the outer surface of the rotary disc. A piston is slidably arranged in each sampling barrel, a notch is formed in the outer surface of each sampling barrel, and a guide rod is fixedly arranged at the position, corresponding to the notch, of each piston; by arranging the rotary table, the sampling barrels, the piston, the guide rod, the guide assembly and the adjusting assembly, the multiple sampling barrels are utilized, soil sampling work of multiple point positions can be carried out at a time through rotation of the rotary table, and the sampling efficiency is improved; and secondly, the soil sample can be kept complete in the sampling and discharging process by utilizing the sliding of the piston in the sampling barrel, so that the damage and pollution of the sample are reduced, and the sample breakage or residue caused by a traditional dumping method is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, in particular to a shallow surface soil monitoring and sampling device. Background Technique

[0002] As a key component of the ecosystem, the monitoring of the physical and chemical properties and pollution status of soil is crucial for fields such as agricultural production, ecological protection, and environmental governance. Shallow surface soil directly participates in the surface material cycle and energy exchange, is the main area of crop root activity, and is also a sensitive layer for pollutant migration and diffusion. Precise sampling of it is the prerequisite for obtaining reliable monitoring data.

[0003] In the shallow soil sampling device for geological exploration disclosed in Chinese Patent Publication No. CN220454900U, the shallow soil sampling device for geological exploration reaches a specified depth through a sampler for sampling operations. After sampling, the soil inside the sampler can be taken out for the monitoring step; however, according to the soil sampling devices provided in related fields and the existing technology, traditional devices usually only have a single sampling cylinder, with low sampling efficiency. In the scenario of dense point layout, cross-contamination may occur due to residual samples. At the same time, soil samples may adhere to the cylinder wall or bottom, and the sample fracture or residue caused by the traditional pouring method requires manual wiping and rinsing, increasing the cleaning time. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technique, and provide a shallow surface soil monitoring and sampling device.

[0005] The purpose of the utility model is achieved through the following technical solutions: A shallow surface soil monitoring and sampling device includes a fixed disk and a grip fixedly arranged on the outer surface of the fixed disk. A pin shaft is inserted at the center of the fixed disk. A turntable is rotatably arranged on the outer surface of the pin shaft. A plurality of sampling cylinders are fixedly installed on the outer surface of the turntable. A piston is slidably arranged inside each sampling cylinder. A notch is opened on the outer surface of each sampling cylinder. Guide rods are fixedly arranged at the positions of the pistons corresponding to the notches. One end of the pin shaft is fixedly provided with a guide assembly for cooperating with the guide rods to control the sliding of the pistons, and an adjustment assembly for cooperating with the guide rods to control the switching of the pistons between the sampling state and the sample discharging and pushing state is arranged on the guide assembly.

[0006] Preferably, the guide assembly includes a mounting disk fixedly connected to the pin shaft. An annular groove and a V-shaped groove are opened on the surface of the mounting disk away from the pin shaft. Both openings of the V-shaped groove are communicated with the annular groove.

[0007] Preferably, the guide rod is a C-shaped bent from a cylindrical metal, and the guide rod is adapted to both the annular groove and the V-shaped groove.

[0008] Preferably, hinge grooves are provided at both openings of the V-shaped groove. The adjusting assembly includes a stop rod. One end of the stop rod is rotatably matched with the hinge groove through a rotating shaft. The rotating shaft penetrates through the mounting disc and a knob is fixedly provided at one end of the rotating shaft located outside the mounting disc.

[0009] Preferably, the cross-section of the pin shaft is hexagonal. A hexagonal jack is provided at the position of the fixed disc corresponding to the pin shaft. A stud is fixedly provided at one end of the pin shaft away from the mounting disc, and a nut is threadedly connected to the outer surface of the stud.

[0010] Preferably, a rotating hole is provided at the center of the turntable, and the pin shaft is connected to the rotating hole through a bearing.

[0011] Beneficial effects: For this shallow surface soil monitoring and sampling device, by setting the turntable, sampling cylinder, piston, guide rod, guiding assembly and adjusting assembly, firstly, with the multiple sampling cylinders provided, the soil sampling work at multiple points can be carried out once through the rotation of the turntable, improving the sampling efficiency; secondly, the sliding of the piston inside the sampling cylinder can ensure the integrity of the soil sample during sampling and discharging, reducing sample damage and pollution, and avoiding sample fracture or residue caused by the traditional pouring method. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic structural diagram of the first perspective of the fixed disc of the present invention;

[0014] Figure 2 It is a schematic structural diagram of the second perspective of the fixed disc of the present invention;

[0015] Figure 3 It is a split structural diagram of the fixed disc and the pin shaft of the present invention;

[0016] Figure 4 It is a schematic structural diagram of the first working state of the sampling cylinder when the stop rod is inside the V-shaped groove of the present invention;

[0017] Figure 5It is a schematic structural diagram of the second working state of the sampling cylinder when the shift lever of the present utility model is inside the V-shaped groove;

[0018] Figure 6 It is a schematic diagram of the state when the shift lever of the present utility model is inside the annular groove;

[0019] Figure 7 It is a schematic structural diagram of the split of the nut and the stud of the present utility model;

[0020] Figure 8 For the present utility model Figure 7 The enlarged schematic diagram of the structure at A in it.

[0021] In the figure: 1. Fixed disk; 101. Jack; 2. Handle; 3. Pin shaft; 301. Stud; 302. Nut; 4. Turntable; 5. Sampling cylinder; 6. Piston; 7. Guide rod; 8. Guide assembly; 801. Mounting disk; 802. Annular groove; 803. V-shaped groove; 8031. Hinge groove; 9. Adjustment assembly; 901. Shift lever; 902. Rotating shaft; 903. Knob. Specific embodiments

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0023] The additional aspects and advantages of the present utility model will be further given in the following description in conjunction with the drawings, and some will become obvious from the following description or be understood through the practice of the present utility model.

[0024] Such as Figures 1 to 8As shown in the figure, a shallow surface soil monitoring and sampling device includes a fixed disk 1 and a handle 2 fixedly arranged on the outer surface of the fixed disk 1. A pin shaft 3 is inserted at the center of the fixed disk 1. A turntable 4 is rotatably arranged on the outer surface of the pin shaft 3. A rotation hole is provided at the center of the turntable 4. The pin shaft 3 is connected to the rotation hole through a bearing. By using the above-mentioned bearing, the stability of the turntable 4 during rotation can be improved. A plurality of sampling cylinders 5 are fixedly installed on the outer surface of the turntable 4. A piston 6 is slidably arranged inside each sampling cylinder 5. A notch is provided on the outer surface of each sampling cylinder 5. Guide rods 7 are fixedly arranged at the positions of the pistons 6 corresponding to the notches. One end of the pin shaft 3 is fixedly provided with a guide component 8 for controlling the sliding of the piston 6 in cooperation with the guide rod 7, and an adjustment component 9 for controlling the switching of the piston 6 between the sampling state and the sample discharging and pushing state in cooperation with the guide rod 7 is arranged on the guide component 8.

[0025] As Figures 4 to 6 As shown in the figure, the guide component 8 includes a mounting disk 801 fixedly connected to the pin shaft 3. An annular groove 802 and a V-shaped groove 803 are provided on the side of the mounting disk 801 away from the pin shaft 3. Both openings of the V-shaped groove 803 are communicated with the annular groove 802. The cross-section of the pin shaft 3 is hexagonal. A hexagonal jack 101 is provided on the fixed disk 1 corresponding to the position of the pin shaft 3. A stud 301 is fixedly provided at the end of the pin shaft 3 away from the mounting disk 801. A nut 302 is threadedly connected to the outer surface of the stud 301. The guide rod 7 is a C-shaped metal bent from a cylinder, and the guide rod 7 is adapted to both the annular groove 802 and the V-shaped groove 803.

[0026] As Figures 3 to 8 As shown in the figure, hinge grooves 8031 are provided at both openings of the V-shaped groove 803. The adjustment component 9 includes a stop rod 901. One end of the stop rod 901 is rotatably matched with the hinge groove 8031 through a rotating shaft 902. The rotating shaft 902 penetrates the mounting disk 801 and a knob 903 is fixedly provided at the end located outside the mounting disk 801. By using the adjustment component 9, the rotating shaft 902 and the stop rod 901 can be rotated through the knob 903, so that the stop rod 901 is inside the annular groove 802 or the V-shaped groove 803. When the stop rod 901 is inside the V-shaped groove 803, as the turntable 4 rotates, the guide rod 7 can only be inside the annular groove 802. At this time, the piston 6 is in the sampling state. When the stop rod 901 is inside the annular groove 802, as the turntable 4 rotates, the guide rod 7 will enter the V-shaped groove 803 under the guidance of the stop rod 901, and then return to the annular groove 802 from the other opening of the V-shaped groove 803. At this time, the piston 6 is in the sample discharging and pushing state.

[0027] The working process is as follows:

[0028] S1. As Figures 3 to 8As shown in the figure, by using the provided adjusting component 9, the rotating shaft 902 and the stop lever 901 can be rotated by the rotary knob 903, so that the stop lever 901 is inside the annular groove 802 or the V-shaped groove 803. When the stop lever 901 is inside the V-shaped groove 803, as the turntable 4 rotates, the guide rod 7 can only be inside the annular groove 802. At this time, the piston 6 is in the sampling state. When the stop lever 901 is inside the annular groove 802, as the turntable 4 rotates, the guide rod 7 will enter the V-shaped groove 803 under the guidance of the stop lever 901, and then return to the annular groove 802 from the other opening of the V-shaped groove 803. At this time, the piston 6 is in the sample discharging and pushing state;

[0029] S2. As Figures 3 to 8 shown in the figure, in summary, when the stop lever 901 is inside the V-shaped groove 803, by using the provided multiple sampling cylinders 5, the rotation of the turntable 4 can be used to perform soil sampling at multiple points in a single time, improving the sampling efficiency and realizing the assembly line operation of "sampling, rotating, and resampling". It is especially suitable for the scenario of dense point layout, greatly reducing the time and labor required for traditional single sampling parts to sample one by one;

[0030] S3. As Figure 5 and Figure 6 shown in the figure, when the stop lever 901 is inside the annular groove 802, the rotation of the turntable 4 can be used to control all the pistons 6 to switch between the "sampling locked" state and the "sample discharging and pushing" state. By using the sliding of the piston 6 inside the sampling cylinder 5, it can ensure that the soil sample remains intact during the sampling and discharging processes, reducing the damage and pollution of the sample and avoiding the sample fracture or residue caused by the traditional pouring method;

[0031] S4. As Figure 5 and Figure 6 shown in the figure, the design of the sampling cylinder 5 and the piston 6 allows for the rapid discharge of the soil sample, making the cleaning and maintenance of the device easier.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A shallow surface soil monitoring and sampling device, characterized in that: It includes a fixed disk (1) and a handle (2) fixedly arranged on the outer surface of the fixed disk (1). A pin shaft (3) is inserted at the center of the fixed disk (1). A turntable (4) is rotatably arranged on the outer surface of the pin shaft (3). A plurality of sampling cylinders (5) are fixedly installed on the outer surface of the turntable (4). A piston (6) is slidably arranged inside each sampling cylinder (5). A notch is formed on the outer surface of each sampling cylinder (5). A guide rod (7) is fixedly arranged at the position of the piston (6) corresponding to the notch. One end of the pin shaft (3) is fixedly provided with a guide component (8) for cooperating with the guide rod (7) to control the sliding of the piston (6), and an adjusting component (9) for cooperating with the guide rod (7) to control the switching of the piston (6) between the sampling state and the sample discharging and pushing state is arranged on the guide component (8).

2. The shallow surface soil monitoring and sampling device according to claim 1, characterized in that: The guide component (8) includes a mounting disk (801) fixedly connected to the pin shaft (3). An annular groove (802) and a V-shaped groove (803) are formed on the surface of the mounting disk (801) away from the pin shaft (3). Both openings of the V-shaped groove (803) are communicated with the annular groove (802).

3. The shallow surface soil monitoring and sampling device according to claim 2, wherein: The guide rod (7) is a C-shaped bent from a cylindrical metal, and the guide rod (7) is adapted to both the annular groove (802) and the V-shaped groove (803).

4. The shallow surface soil monitoring and sampling device according to claim 3, characterized in that: Hinge grooves (8031) are formed at both openings of the V-shaped groove (803). The adjusting component (9) includes a stop rod (901). One end of the stop rod (901) is rotatably matched with the hinge groove (8031) through a rotating shaft (902). The rotating shaft (902) penetrates through the mounting disk (801) and a knob (903) is fixedly arranged at the end of the rotating shaft (902) located outside the mounting disk (801).

5. The shallow surface soil monitoring and sampling device according to claim 2, characterized in that: The cross-section of the pin shaft (3) is hexagonal. A hexagonal jack (101) is formed at the position of the fixed disk (1) corresponding to the pin shaft (3). A stud (301) is fixedly arranged at the end of the pin shaft (3) away from the mounting disk (801). A nut (302) is threadedly connected to the outer surface of the stud (301).

6. The shallow surface soil monitoring and sampling device according to claim 5, characterized in that: A rotating hole is formed at the center of the turntable (4). The pin shaft (3) is connected with the rotating hole through a bearing.

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