Soil sampling device

Abstract

The utility model relates to a soil sampling device which comprises a sampling barrel, a plurality of arc-shaped cone plates and an opening and closing driving assembly, the arc-shaped cone plates are hinged to the bottom end of the sampling barrel and distributed at equal intervals in the circumferential direction of the sampling barrel, and the arc-shaped cone plates have an opening state and a closing state; the opening and closing driving assembly comprises a fixing base, a driving handle, a linkage ring and a sliding rod, and when the driving handle is operated to rotate, the driving handle drives the linkage ring to drive the sliding rod to move, so that the arc-shaped cone plate is switched between the opening state and the closing state. The arc-shaped conical plate capable of being opened and closed is arranged at the bottom end of the sampling barrel, the arc-shaped conical plate is opened during sampling, and soil can enter the sampling barrel through the arc-shaped conical plate; after sampling is finished, the arc-shaped conical plate is closed through the opening and closing driving assembly, so that a block is formed at the bottom of the sampling barrel, a soil sample in the sampling barrel is prevented from falling off and leaking, in addition, the design of the arc-shaped conical plate is easier to drill soil, and the drilling process is easier and more labor-saving; the opening and closing driving assembly is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling and detection, in particular to a soil sampling device. Background Art

[0002] Collecting soil and analyzing it to obtain its physical, chemical, and biological properties, component content, etc. is of great significance for studying agricultural production, soil pollution control, and animal and crop research.

[0003] Existing soil sampling equipment typically includes a sampling cylinder. By inserting the cylinder into the soil and rotating it, the lower portion of the cylinder collects soil samples, allowing for convenient and rapid acquisition of representative soil samples for further analysis and testing. However, most existing sampling cylinders are open-topped. As the bottom of the sample is unobstructed during upward movement, the sample may leak out, hindering sample collection. Summary of the Invention

[0004] The utility model aims to provide a soil sampling device, the bottom of which can be opened to facilitate sampling and can be closed to prevent leakage of soil samples after sampling.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A soil sampling device comprising:

[0007] Sampling tube;

[0008] An arc-shaped conical plate, hinged at the bottom end of the sampling barrel and having a plurality of arc-shaped conical plates distributed at equal intervals along the circumference of the sampling barrel, wherein the arc-shaped conical plate has an open state and a closed state. When the arc-shaped conical plate is in the open state, the plurality of arc-shaped conical plates are open relative to each other and coplanar with the sampling barrel. When the arc-shaped conical plate is in the closed state, the plurality of arc-shaped conical plates are close to each other and form a seal at the bottom end of the sampling barrel.

[0009] An opening and closing drive assembly includes a fixed seat, a driving handle, a linkage ring and a slide rod. The fixed seat is fixedly connected to the top end of the sampling cylinder. The driving handle is rotatably connected to the fixed seat and has a plurality of symmetrical arrangements with the axis of the sampling cylinder as the center. The linkage ring is connected to the driving handle and is located between the fixed seat and the sampling cylinder. The slide rod has a plurality of symmetrical arrangements and is arranged one-to-one with the arc-shaped cone plate. The two ends of the slide rod are respectively connected to the linkage ring and the arc-shaped cone plate.

[0010] When the driving handle is operated to rotate, the driving handle drives the linkage ring to move with the slide rod, so that the arc-shaped cone plate switches between an open state and a closed state.

[0011] Preferably, the opening and closing drive assembly further comprises a plurality of abutment rods, one end of the abutment rod being rotatably and slidingly connected to one of the fixed seat and the linkage ring, and the other end being rotatably connected to the other one, and when the arc-shaped cone plate is in an open state, the abutment rod is perpendicular to the fixed seat and the linkage ring, thereby enabling the arc-shaped cone plate to remain in the open state.

[0012] Further preferably, the plurality of abutment rods are symmetrically arranged with the axis of the sampling cylinder as the center.

[0013] Preferably, one end of the driving handle is rotatably connected to the bottom surface of the fixing seat, the driving handle extends obliquely downward and has a first sliding groove consistent with its extension direction, and the linkage ring is movably arranged in the first sliding groove.

[0014] Preferably, the inner side wall of the arc-shaped cone plate is provided with a connecting portion, the connecting portion has a second sliding groove inclined downward from the outside to the inside, and the bottom end of the sliding rod is movably arranged in the second sliding groove.

[0015] Preferably, a channel for the sliding rod to slide is opened in the wall of the sampling tube.

[0016] Preferably, when the arc-shaped cone plates are in a closed state, the plurality of arc-shaped cone plates are in an inverted cone shape.

[0017] In some embodiments, there are four curved cone plates.

[0018] In some embodiments, there are two driving handles.

[0019] Preferably, the soil sampling device further comprises a sampling assembly, which comprises a push plate slidably arranged in the sampling barrel along the axial direction of the sampling barrel, and a guide rod connected to the push plate, passing through the sampling barrel and the fixing seat and extending upward.

[0020] Further preferably, a push handle is provided on the guide rod.

[0021] Preferably, the soil sampling device further comprises a connecting ring slidably arranged on the outside of the sampling cylinder along the axial direction of the sampling cylinder, and two supporting columns symmetrically arranged on opposite sides of the connecting ring.

[0022] In some embodiments, the support column is in an inverted L shape.

[0023] In some embodiments, a moving wheel is provided at the bottom end of the support column.

[0024] Preferably, the soil sampling device further comprises a handle fixedly connected to the fixing seat and located directly above the driving handle, and the handle has a plurality of handles arranged corresponding to the driving handle.

[0025] Preferably, a plurality of grooves are formed on the fixing seat.

[0026] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0027] The utility model provides a curved cone plate at the bottom of the sampling tube that can be opened and closed. When sampling, the curved cone plate is opened, allowing soil to pass through the curved cone plate and enter the sampling tube. After sampling, the curved cone plate is closed by the opening and closing drive assembly, thereby forming a barrier at the bottom of the sampling tube and preventing the soil sample from escaping. In addition, the curved cone plate in the utility model makes it easier to drill into the soil, making the drilling process easier and more labor-saving. The opening and closing drive assembly has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a soil sampling device in Example 1;

[0029] Figure 2 This is a front view of a soil sampling device in Example 1;

[0030] Figure 3 A half-section schematic diagram of a soil sampling device in Example 1;

[0031] Figure 4 A half-section schematic diagram of a soil sampling device in Example 1 from another angle;

[0032] Figure 5 for Figure 4 A magnified schematic diagram of part A;

[0033] Figure 6 for Figure 4 An enlarged schematic diagram of part B;

[0034] Among them, 1. sampling tube; 11. guide groove;

[0035] 2. Arc-shaped cone plate; 21. Connecting portion; 211. Second chute;

[0036] 3. Opening and closing drive assembly; 31. Fixed seat; 311. Groove; 312. Handle; 32. Driving handle; 321. First slide groove; 33. Linkage ring; 34. Slide rod; 35. Abutment rod;

[0037] 4. Sample discharging assembly; 41. Push plate; 42. Guide rod; 43. Push handle;

[0038] 5. Connecting ring;

[0039] 6. Support column; 61. Moving wheel. DETAILED DESCRIPTION

[0040] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0041] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "bottom", "top" and the like indicate directions or positional relationships based on the attached drawings. Figure 2 The above-mentioned orientations or positional relationships are merely for the purpose of facilitating the description of the embodiments of the present invention and simplifying the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the embodiments of the present invention.

[0042] In the description of the embodiments of the present invention, “a plurality of” means two or more than two, unless otherwise clearly and specifically defined.

[0043] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] To simplify the disclosure of the embodiments of the present invention, the following descriptions are of components and configurations of specific examples. These are, of course, merely examples and are not intended to limit the embodiments of the present invention. Furthermore, the embodiments of the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or configurations discussed.

[0045] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0046] Example 1

[0047] like Figures 1 to 4As shown, a soil sampling device includes a sampling tube 1, an arc-shaped cone plate 2 and an opening and closing drive assembly 3.

[0048] The arc-shaped cone plate 2 is hinged at the bottom end of the sampling tube 1. It has multiple arc-shaped cone plates 2 distributed at equal intervals along the circumference of the sampling tube 1. In this embodiment, there are four arc-shaped cone plates 2. The width of the arc-shaped cone plate 2 gradually decreases from top to bottom. The arc-shaped cone plate 2 has an open state and a closed state. When the arc-shaped cone plate 2 is in the open state (see Figures 1 to 4 ), multiple curved cone plates 2 are opened relative to each other and coplanar with the sampling tube 1. By making the curved cone plates 2 coplanar with the sampling tube 1, drilling and sampling are facilitated, and a dead angle is formed between the two, preventing the curved cone plates 2 from rotating relative to the sampling tube 1 during drilling, thereby maintaining the opened state. When the curved cone plates 2 are in a closed state (not shown), the multiple curved cone plates 2 are relatively close to each other and form a seal at the bottom end of the sampling tube 1, thereby preventing the soil sample in the sampling tube 1 from escaping. Preferably, when the curved cone plates 2 are in the closed state, the multiple curved cone plates 2 have an inverted cone shape.

[0049] The opening and closing drive assembly 3 is used to drive the arc-shaped cone plate 2 to switch between an open state and a closed state.

[0050] The opening and closing drive assembly 3 includes a fixing seat 31, a driving handle 32, a linkage ring 33 and a slide rod 34. Figures 1 to 6 The fixed seat 31 is fixedly connected to the top of the sampling barrel 1 and has a certain distance from the sampling barrel 1. A plurality of grooves 311 are provided on the fixed seat 31. The driving handle 32 and the linkage ring 33 are located between the fixed seat 31 and the sampling barrel 1. One end of the driving handle 32 is rotatably connected to the fixed seat 31, specifically connected to the bottom end of the fixed seat 31. The driving handle 32 extends obliquely downward and has a plurality of symmetrically arranged with the axis of the sampling barrel 1 as the center. In this embodiment, the driving handle 32 has two located on the left and right sides of the sampling barrel 1, which is convenient for two-handed operation. The driving handle 32 is provided with a first slide groove 321 consistent with its extension direction. The linkage ring 33 is connected to the driving handle 32 and is specifically movably arranged in the first slide groove 321. There are multiple sliding rods 34, each corresponding to one of the curved conical plates 2. A channel is defined within the wall of the sampling tube 1 for the sliding rods 34 to slide through. The sliding rods 34 pass through the channel, with one end connected to the linkage ring 33 and the other end movably connected to the curved conical plate 2. Specifically, the middle region of the curved conical plate 2 includes a connecting portion 21, which defines a second chute 211 that slopes downward from the outside to the inside. The other end (i.e., the bottom end) of the sliding rods 34 is movably positioned within the second chute 211. When the driving handle 32 is rotated upward, the driving handle 32 drives the linkage ring 33 to move the sliding rods 34 upward, and the upward movement of the sliding rods 34 drives the curved conical plate 2 toward a closed state. When the driving handle 32 is rotated downward, the driving handle 32 drives the linkage ring 33 to move the sliding rods 34 downward, and the downward movement of the sliding rods 34 drives the curved conical plate 2 toward an open state.

[0051] To further prevent the curved conical plate 2 from being forced closed during sampling, thereby affecting sampling, the opening and closing drive assembly 3 also includes a plurality of abutment rods 35. One end of the abutment rod 35 is rotatably and slidably connected to one of the fixed seat 31 and the linkage ring 33, and the other end is rotatably connected to the other. When the curved conical plate 2 is in the open state, the abutment rod 35 is perpendicular to the fixed seat 31 and the linkage ring 33 to prevent the linkage ring 33 from moving, thereby maintaining the curved conical plate 2 in the open state. When the drive handle 32 rotates, the abutment rod 35 can slide relative to the fixed seat 31 or the linkage ring 33, thereby allowing the linkage ring 33 to move. In this embodiment, there are two abutment rods 35 symmetrically arranged, each disposed adjacent to the two drive handles 32. The upper end of the abutment rod 35 is rotatably and slidably connected to the fixed seat 31, and the lower end is rotatably connected to the linkage ring 33.

[0052] The soil sampling device also includes a sample discharging assembly 4, which includes a push plate 41 slidably disposed within the sampling barrel 1 along the axial direction of the sampling barrel 1, a guide rod 42 connected to the push plate 41, extending upward through the sampling barrel 1 and the fixing seat 31, and a push handle 43 disposed on the guide rod 42. The arrangement of the sample discharging assembly 4 facilitates the complete and smooth vertical discharge of the soil sample, avoiding inconvenience or incomplete sampling after the sampling is completed.

[0053] The soil sampling device also includes a connecting ring 5 and a support column 6. The connecting ring 5 is slidably arranged on the outside of the sampling barrel 1 along the axial direction of the sampling barrel 1. Specifically, the left and right sides of the sampling barrel 1 respectively have two guide grooves 11 extending along its axial direction, and the connecting ring 5 has two sliders that are arranged in a one-to-one correspondence with and matched with the two guide grooves 11, and the sliders are slidably arranged in the corresponding guide grooves 11. The support column 6 has two symmetrically arranged on the left and right sides of the connecting ring 5, and the support column 6 is in an inverted L shape. The bottom end of the support column 6 is preferably provided with a moving wheel 61. The coordinated arrangement of the connecting ring 5, the support column 6 and the moving wheel 61 allows the bottom of the sampling barrel 1 to remain horizontal, thereby facilitating vertical sampling operations and avoiding tilting of the sampling angle, which in turn affects the sampling accuracy.

[0054] The soil sampling device further includes a handle 312 fixedly connected to the fixing base 31 and located directly above the driving handle 32 . The handle 312 has a plurality of handles 312 arranged corresponding to the driving handle 32 , namely, two handles 312 in this embodiment.

[0055] Working principle:

[0056] Place the soil sampling device at the location to be sampled, operate the driving handle 32 to open the arc-shaped cone plate 2. At this time, the driving handle 32 is in a low position, the abutment rod 32 is perpendicular to the fixed seat 31 and the linkage ring 33, and with the support of the connecting ring 5, the support column 6 and the moving wheel 61, the sampling tube 1 is perpendicular to the ground, which is convenient for vertical sampling.

[0057] When sampling, the sampling tube 1 is driven to rotate back and forth by a certain angle through the handle 312, so that the arc-shaped cone plate 2 can drill down into the soil for sampling. When the sampling tube 1 moves down to the target sampling depth, the palm of the hand is placed on the handle 312, fixed by the thumb, and then four fingers are used to hold the driving handle 32, and force is applied to rotate the driving handle 32 upward. The driving handle 32 drives the linkage ring 33 to move upward, thereby moving the slide rod 34 upward. During the upward movement of the slide rod 34, the arc-shaped cone plate 2 is driven to rotate inward, thereby switching to a closed state, thereby blocking the soil in the sampling tube 1 to prevent leakage.

[0058] After the sampling tube 1 and the soil sample are completely taken out, the push handle 43 is pushed downward, and the push handle 43 moves downward with the push plate 41 through the guide rod 42, thereby completely and smoothly leading the soil sample in the sampling tube 1 vertically out.

[0059] The above-mentioned soil sampling device is designed with an arc-shaped cone plate 2 and an opening and closing drive component 3, so that when the arc-shaped cone plate 2 is downward for sampling, the arc-shaped cone plate 2 is in an open state, that is, in a state coplanar with the sampling tube 1, which facilitates the sampling tube 1 to drill into the soil for sampling; after the sampling is completed, the opening and closing drive component 3 drives the arc-shaped cone plate 2 to switch to a closed state, so that the arc-shaped cone plate 2 can support the bottom of the sampling tube 1 to prevent the soil sample from leaking.

[0060] Furthermore, the design of the abutment rod 32 can prevent the arc-shaped cone plate 2 from being forced to close during the sampling process, so that the arc-shaped cone plate 2 can remain in an open state during the sampling process.

[0061] The soil sampling device facilitates the complete and smooth vertical extraction of soil samples by means of the sample outlet assembly 4, thereby avoiding inconvenience in sample extraction or incomplete sample extraction after the sampling is completed.

[0062] The soil sampling device is designed with the connecting ring 5 and the supporting column 6 so that the sampling tube 1 can perform vertical sampling downwards, thus avoiding the occurrence of tilted sampling angles that would affect the sampling accuracy.

[0063] The soil sampling device has a simple structure and is easy to operate.

[0064] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A soil sampling device, characterized in that: include: Sampling tube (1); An arc-shaped cone plate (2), the arc-shaped cone plate (2) being hinged to the bottom end of the sampling tube (1) and having a plurality of arc-shaped cone plates distributed at equal intervals along the circumference of the sampling tube (1), the arc-shaped cone plate (2) having an open state and a closed state, when the arc-shaped cone plate (2) is in the open state, the plurality of arc-shaped cone plates (2) are open relative to each other and coplanar with the sampling tube (1), when the arc-shaped cone plate (2) is in the closed state, the plurality of arc-shaped cone plates (2) are close to each other and form a seal at the bottom end of the sampling tube (1); An opening and closing drive assembly (3), the opening and closing drive assembly (3) comprises a fixed seat (31), a driving handle (32), a linkage ring (33) and a slide rod (34), the fixed seat (31) is fixedly connected to the top end of the sampling tube (1), the driving handle (32) is rotatably connected to the fixed seat (31) and has a plurality of symmetrically arranged around the axis of the sampling tube (1), the linkage ring (33) is connected to the driving handle (32) and is located between the fixed seat (31) and the sampling tube (1), the slide rod (34) has a plurality of symmetrically arranged corresponding to the arc-shaped cone plate (2), and the two ends of the slide rod (34) are respectively connected to the linkage ring (33) and the arc-shaped cone plate (2). When the driving handle (32) is operated to rotate, the driving handle (32) drives the linkage ring (33) to move with the slide rod (34), so that the arc-shaped cone plate (2) switches between an open state and a closed state.

2. The soil sampling device according to claim 1, characterized in that: The opening and closing drive assembly (3) further comprises a plurality of abutment rods (35), one end of each abutment rod (35) being rotatably and slidingly connected to one of the fixed seat (31) and the linkage ring (33), and the other end being rotatably connected to the other end. When the arc-shaped cone plate (2) is in an open state, the abutment rod (35) is perpendicular to the fixed seat (31) and the linkage ring (33).

3. The soil sampling device according to claim 1, characterized in that: One end of the driving handle (32) is rotatably connected to the bottom surface of the fixing seat (31); the driving handle (32) extends obliquely downward and has a first sliding groove (321) consistent with its extension direction; the linkage ring (33) is movably arranged in the first sliding groove (321).

4. The soil sampling device according to claim 1, characterized in that: The inner side wall of the arc-shaped cone plate (2) is provided with a connecting portion (21), and the connecting portion (21) has a second sliding groove (211) that is inclined downward from the outside to the inside, and the bottom end of the sliding rod (34) is movably arranged in the second sliding groove (211).

5. The soil sampling device according to claim 1, characterized in that: A channel for the sliding rod (34) to slide is provided in the wall of the sampling tube (1); and / or, When the arc-shaped cone plates (2) are in a closed state, the plurality of arc-shaped cone plates (2) are in an inverted cone shape; and / or, The driving handles (32) are two.

6. The soil sampling device according to claim 1, characterized in that: The soil sampling device further comprises a sampling assembly (4), wherein the sampling assembly (4) comprises a push plate (41) slidably arranged in the sampling cylinder (1) along the axial direction of the sampling cylinder (1), and a guide rod (42) connected to the push plate (41), passing through the sampling cylinder (1) and the fixing seat (31), and extending upward.

7. The soil sampling device according to claim 6, characterized in that: A push handle (43) is provided on the guide rod (42).

8. The soil sampling device according to claim 1, characterized in that: The soil sampling device further comprises a connecting ring (5) slidably arranged on the outside of the sampling cylinder (1) along the axial direction of the sampling cylinder (1), and two supporting columns (6) symmetrically arranged on opposite sides of the connecting ring (5).

9. The soil sampling device according to claim 8, characterized in that: The support column (6) is in an inverted L-shape; and / or, The bottom end of the support column (6) is provided with a moving wheel (61).

10. The soil sampling device according to claim 1, characterized in that: The soil sampling device further comprises a handle (312) fixedly connected to the fixing seat (31) and located directly above the driving handle (32), and the handle (312) has a plurality of handles arranged corresponding to the driving handle (32).

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