Soil sampler

Abstract

The utility model discloses a soil sampler, which relates to the technical field of soil sampling, and comprises a shell, the shell is a cylinder with a cross-shaped section, the shell is hollow, the bottom of the shell is provided with an opening, a vertical pipe is arranged in the shell, the bottom of an inner cavity of the shell is fixedly connected with a first air cylinder, and the extending end of the first air cylinder is fixedly connected with the vertical pipe. The shell and the vertical pipe are in sleeved telescopic connection, the first air cylinder is connected between the shell and the vertical pipe, and the vertical pipe is driven by the first air cylinder to extend outwards from the interior of the shell, so that the sampling depth is adjusted according to requirements, the operation is simple and convenient, time and labor are saved, and the sampling depth is effectively determined by matching with the depth display; the sampling position error is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, in particular to a soil sampler. Background Technique

[0002] Environmental monitoring refers to the activities of environmental monitoring agencies to monitor and measure the environmental quality status. By monitoring and measuring the indicators reflecting the environmental quality, the environmental pollution status and the level of environmental quality are determined, usually mainly manifested by soil quality. During the soil sampling process of environmental monitoring, a soil sampler is used to sample and collect the required soil to investigate and understand the geological conditions.

[0003] For the prior art soil sampler with the publication number of CN210108754U, during use, manual operation is required for sampling, which is time-consuming and laborious, and the current depth cannot be displayed in real time, so there is an easy sampling position error, affecting the monitoring results. Moreover, when the device is in use, the inlet and outlet of the sampling part are the same, and the soil cannot be automatically discharged after entering the sampling part. As the sampling part goes deeper, the soil at different depths will be mixed together, affecting the monitoring results. Content of the Utility Model

[0004] The purpose of the utility model is to make up for the deficiencies of inconvenient operation and mixed sample soil in the prior art, and provide a soil sampler.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a soil sampler, including a housing, the housing is a column with a cross-shaped cross-section, the housing is hollow, and an opening is provided at the bottom of the housing. A vertical pipe is arranged in the housing, a first cylinder is fixedly connected to the bottom of the inner cavity of the housing, the extending end of the first cylinder is fixedly connected to the vertical pipe, a second cylinder is fixedly connected in the vertical pipe, and a motor is fixedly connected to the bottom of the cylinder. The output end of the motor at the bottom is fixedly connected with a sampling assembly, the bottom of the housing is movably connected with a support frame, and a depth display is fixedly connected to the top of the housing.

[0006] As above, the sampling assembly includes a screw rod, the screw rod is fixed to the output end of the motor at the bottom, and a drill bit is fixedly connected to the bottom of the screw rod.

[0007] As above, a multi-layer annular curved surface column is sleeved outside the screw rod, and the multi-layer annular curved surface column is spirally sleeved in the spiral thread of the screw rod.

[0008] As above, a protective cover is sleeved outside the motor, the protective cover is fixedly connected to the bottom end of the second cylinder, the output end of the motor is fixedly connected with a connecting rod, and the connecting rod extends to the outside of the protective cover. A threaded hole is provided at the bottom end of the connecting rod, and a screw rod matching the threaded hole is fixedly connected to the top end of the screw rod.

[0009] As described above, the support frame is composed of four support plates. The four support plates are evenly distributed at the four inner corners of the housing, and the top of the support plates is movably connected to the housing. A support rod is connected between the bottom of the four support plates and the bottom of the housing.

[0010] As described above, a chute is provided on the circumferential side wall of the housing, and a slider is slidably connected in the chute. An active block is movably connected to the top end of the support plate. The active block is fixedly connected to the slider. A spring is fixedly connected between the top of the slider and the chute. Both ends of the support rod are movably connected to the support plate and the housing respectively.

[0011] As described above, a bottom cover is provided at the bottom of the housing. A groove is provided on the bottom cover. The bottom of the housing and the bottom of the support plate are both inserted into the groove, and the housing is threadedly connected to the bottom cover.

[0012] Compared with the prior art, this soil sampler has the following beneficial effects:

[0013] First, through the socket telescopic connection between the housing and the vertical pipe of the present utility model, and a first cylinder is connected between the housing and the vertical pipe. The first cylinder drives the vertical pipe to extend out of the housing, so as to adjust the sampling depth according to requirements. The operation is simple, time-saving and labor-saving. At the same time, it cooperates with the depth display to effectively determine the sampling depth and reduce the sampling position error.

[0014] Second, the present utility model forms a sampling assembly through a screw rod, a multi-layer annular curved surface column and a drill bit. When the drill bit and the screw rod rotate for sampling, the soil will enter the inside of the multi-layer annular curved surface column along the spiral gap. The continuously entering soil will overflow from the curved surface between the multi-layer annular curved surface columns, retaining accurate depth or the latest soil sample during sampling and preventing the mixing of soils at multiple depths.

[0015] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a schematic diagram of the folded structure of the support frame of the present utility model;

[0018] Figure 3 is a schematic diagram of the internal structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the structure of the sampling assembly of the present utility model;

[0020] Figure 5 Schematic diagram of the internal structure of the chute of the present utility model.

[0021] In the figure: 1. Outer shell; 2. Depth display; 3. Bottom cover; 4. Support plate; 5. Movable block; 6. Support rod; 7. Vertical pipe; 8. Second cylinder; 9. First cylinder; 10. Protective cover; 11. Sampling assembly; 12. Slide block; 13. Motor; 14. Screw rod; 15. Multi-layer annular curved surface column; 16. Drill bit. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1-5 shown, the present utility model provides a technical solution for a soil sampler: a soil sampler, including an outer shell 1, the outer shell 1 is a column with a cross-shaped cross-section, the outer shell 1 is hollow, and an opening is provided at the bottom of the outer shell 1. A vertical pipe 7 is provided inside the outer shell 1. A first cylinder 9 is fixedly connected to the bottom of the inner cavity of the outer shell 1. The extending end of the first cylinder 9 is fixedly connected to the vertical pipe 7. A second cylinder 8 is fixedly connected inside the vertical pipe 7, and a motor 13 is fixedly connected to the bottom of the cylinder. The output end of the bottom of the motor 13 is fixedly connected to a sampling assembly 11. The bottom of the outer shell 1 is movably connected to a support frame, and a depth display 2 is fixedly connected to the top of the outer shell 1.

[0024] According to the overall structure of the device, the device is supported on the ground through the support frame. The cylinder extends to push the motor 13 and the sampling assembly 11 downward, and the motor 13 drives the sampling assembly 11 to rotate and drill downward into the soil for sampling. At the same time, the depth display 2 shows the drilling depth of the drill into the soil.

[0025] As Figure 5 shown, the sampling assembly 11 includes a screw rod 14, the screw rod 14 is fixed to the output end of the bottom of the motor 13, and a drill bit 16 is fixedly connected to the bottom of the screw rod 14.

[0026] When the sampling assembly 11 moves downward through the drill bit 16 and drills into the soil, the surrounding soil is loosened by the screw rod 14, facilitating the collection of soil.

[0027] As Figure 5 shown, a multi-layer annular curved surface column 15 is sleeved outside the screw rod 14, and the multi-layer annular curved surface column 15 is spirally sleeved in the spiral thread of the screw rod 14.

[0028] A storage space is formed between the multi-layer annular curved surface column 15 and the spiral rod 14, and the surrounding soil is allowed to enter the inner side of the multi-layer annular curved surface column 15 through the gap and be stored.

[0029] like Figure 3 , 5 As shown, the motor 13 is provided with a protective cover 10, which is fixedly connected to the bottom end of the second cylinder 8. The output end of the motor 13 is fixedly connected to a connecting rod, and the connecting rod extends to the outside of the protective cover 10. A threaded hole is opened at the bottom end of the connecting rod, and a screw matching the threaded hole is fixedly connected to the top end of the spiral rod 14.

[0030] The shield 10 provides protection to prevent the motor 13 from being damaged, and the threaded connection between the connecting rod and the spiral rod 14 facilitates the removal of the sampling assembly 11 from the motor 13, thereby facilitating the pouring out of the soil in the multi-layer annular curved column 15.

[0031] like Figure 1 As shown, the support frame is composed of four support plates 4, which are evenly distributed at the four inner corners of the shell 1, and the tops of the support plates 4 are movably connected to the shell 1, and support rods 6 are connected between the bottoms of the four support plates 4 and the bottom of the shell 1.

[0032] The support frame structure is formed by four support plates 4 and support rods 6 to support the device on the ground, and the four support frames are evenly distributed, so that the support is stable and not easy to fall over.

[0033] like Figure 4 As shown, a slide groove is opened on the side wall of the shell 1, and a slider 12 is slidably connected in the slide groove, a movable block 5 is movably connected to the top of the support plate 4, the movable block 5 is fixedly connected to the slider 12, a spring is fixedly connected between the top of the slider 12 and the slide groove, and both ends of the support rod 6 are movably connected to the support plate 4 and the shell 1 respectively.

[0034] Through the movable connection between the support rod 6, the support plate 4 and the housing 1, the support plate 4 can be folded toward the housing 1, so that the support frame is folded up, making the device easy to carry.

[0035] like Figure 2 As shown, a bottom cover 3 is provided at the bottom of the shell 1 , and a groove is provided on the bottom cover 3 . The bottom of the shell 1 and the bottom of the support plate 4 are both inserted into the groove, and the shell 1 is threadedly connected to the bottom cover 3 .

[0036] The circular ring is moved in the annular groove by threaded connection, so that the circular ring is sleeved on the outside of the support plate 4 to fix the folded support plate 4, which is convenient for carrying.

[0037] Working principle: When in use, select the sampling location, unfold the support frame, and support the device on the ground. Then turn on the depth display 2, the first cylinder 9, the second cylinder 8, and the motor 13. The first cylinder 9 drives the vertical pipe 7 to extend outwards, making the drill bit 16 contact the ground. At the same time, the motor 13 drives the drill bit 16 to rotate through the screw rod 14. Then, under the pressure of the second cylinder 8, the drill bit 16 penetrates into the soil. At the same time, the penetration depth is adjusted by the extension lengths of the first cylinder 9 and the second cylinder 8, and the depth display 2 is used to accurately display the sampling depth. During the penetration of the drill bit 16, the surrounding soil is loosened and enters the inside of the multi-layer annular curved surface column 15 through the gap between the multi-layer annular curved surface column 15 and the screw rod 14 and is stored. After sampling, the retraction cylinder retracts the drill bit 16 to the ground, and the sampling assembly 11 is rotated to remove the whole from the motor 13, and the soil can be poured out from the multi-layer annular curved surface column 15.

[0038] It should be noted that in this text, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "fixedly installed", "installed", "connected", "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A soil sampler, comprising a housing (1), characterized in that: The outer shell (1) is a column with a cross-shaped cross-section. The outer shell (1) is hollow, and an opening is provided at the bottom of the outer shell (1). A vertical pipe (7) is provided inside the outer shell (1). A first cylinder (9) is fixedly connected to the bottom of the inner cavity of the outer shell (1). The extending end of the first cylinder (9) is fixedly connected to the vertical pipe (7). A second cylinder (8) is fixedly connected inside the vertical pipe (7), and a motor (13) is fixedly connected to the bottom of the cylinder. The output end of the motor (13) at the bottom is fixedly connected to a sampling assembly (11). A support frame is movably connected to the bottom of the outer shell (1). A depth display (2) is fixedly connected to the top of the outer shell (1).

2. The soil sampler according to claim 1, wherein: The sampling assembly (11) includes a screw rod (14). The screw rod (14) is fixed to the output end of the motor (13) at the bottom. A drill bit (16) is fixedly connected to the bottom of the screw rod (14).

3. The soil sampler according to claim 2, wherein: A multi-layered annular curved column (15) is sleeved outside the screw rod (14). The multi-layered annular curved column (15) is spirally sleeved in the spiral thread of the screw rod (14).

4. The soil sampler according to claim 2, wherein: A protective cover (10) is sleeved outside the motor (13). The protective cover (10) is fixedly connected to the bottom end of the second cylinder (8). A connecting rod is fixedly connected to the output end of the motor (13), and the connecting rod extends outside the protective cover (10). A threaded hole is provided at the bottom end of the connecting rod. A screw rod matching the threaded hole is fixedly connected to the top end of the screw rod (14).

5. The soil sampler according to claim 1, wherein: The support frame is composed of four support plates (4). The four support plates (4) are evenly distributed at the four inner corners of the outer shell (1), and the top of the support plate (4) is movably connected to the outer shell (1). A support rod (6) is connected between the bottom of the four support plates (4) and the bottom of the outer shell (1).

6. The soil sampler according to claim 5, wherein: A sliding groove is provided on the peripheral side wall of the outer shell (1), and a slider (12) is slidably connected in the sliding groove. A movable block (5) is movably connected to the top end of the support plate (4). The movable block (5) is fixedly connected to the slider (12). A spring is fixedly connected between the top of the slider (12) and the sliding groove. The two ends of the support rod (6) are respectively movably connected to the support plate (4) and the outer shell (1).

7. The soil sampler according to claim 1, wherein: A bottom cover (3) is provided at the bottom of the outer shell (1). A groove is provided on the bottom cover (3). The bottom of the outer shell (1) and the bottom of the support plate (4) are respectively inserted into the groove, and the outer shell (1) is threadedly connected to the bottom cover (3).

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