Quantitative stratified sampler for surface soil

Abstract

The utility model discloses a quantitative stratified sampler for surface soil, which relates to the field of soil sampling and comprises a square cutting ring. A push plate is movably installed in the square cutting ring, a fixing cylinder is fixedly installed at the top of the square cutting ring, a lifting rod is slidably installed in the fixing cylinder, the bottom of the lifting rod extends into the square cutting ring and is movably connected with the push plate, and scale marks are arranged on the lifting rod. A plurality of positioning grooves are formed in the portion, located in the fixing cylinder, of the lifting rod, positioning assemblies matched with the positioning grooves are arranged on the fixing cylinder, a pair of guide rods is movably installed on the fixing cylinder, and the bottoms of the guide rods penetrate through the square cutting ring to be fixedly connected with the push plate; the top of the guide rod is fixedly provided with a pressing assembly, and the technical problems that an existing soil sampling device is not easy to control the depth of being inserted into soil, cannot perform quantitative stratified sampling on the soil, is inconvenient to eject a soil sample and the like are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of soil sampling, in particular to a surface soil quantitative layered sampler. BACKGROUND

[0002] Soil sampling refers to the collection of soil samples, which can be divided into two collection methods: surface sample points and profile sample points. Surface sample points are usually used for agricultural land or cultivated land investigation, mainly focusing on the surface layer of soil, which is generally 0-20 cm deep. During sampling, excavation or drilling methods can be used to obtain soil samples from the surface layer to understand the properties and conditions of the soil.

[0003] Soil collectors are essential tools for soil sampling work and are widely used in soil structure description, root system investigation, undisturbed soil composition and density detection, soil moisture content, water flow and dissolved substance research, and other fields. The design and use of soil collectors are crucial for obtaining high-quality soil samples, as they directly affect the accuracy and reliability of soil research.

[0004] However, existing soil sampling devices are not easy to control the depth of insertion into the soil, cannot perform quantitative layered sampling of soil, and have technical problems such as difficulty in ejecting soil samples. INVENTION CONTENTS

[0005] To address the shortcomings of the prior art, the utility model provides a surface soil quantitative layered sampler, which solves the technical problems raised in the background art.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a surface soil quantitative layered sampler, comprising a square cutting ring; a push plate is movably installed inside the square cutting ring; a fixed cylinder is fixedly installed at the top of the square cutting ring; a lifting rod is slidably installed inside the fixed cylinder; the lifting rod extends to the inside of the square cutting ring at the bottom and is movably connected with the push plate; a scale line is provided on the lifting rod; a plurality of positioning grooves are formed on the lifting rod inside the fixed cylinder; a positioning assembly matching the positioning grooves is provided on the fixed cylinder; a pair of guide rods are movably installed on the fixed cylinder; the guide rods are fixedly connected with the push plate at the bottom and are fixedly installed with a pressing assembly at the top.

[0007] Preferably, the positioning grooves include hemispherical grooves and shaft grooves; a plurality of hemispherical grooves are uniformly formed on the lifting rod; the positioning assembly includes a positioning plug and a positioning rod; a fixed seat is fixedly installed on the inner wall of the fixed cylinder; a positioning plug matching the hemispherical grooves is slidably installed in the fixed seat; a spring is provided between the positioning plug and the fixed seat.

[0008] Preferably, the lifting rod is provided with an axle slot, the axle slot is communicated with the half-ball slot, a positioning rod is movably installed on the sidewall of the fixing cylinder, and one end of the positioning rod penetrates through the fixing base and is movably inserted into the axle slot.

[0009] Preferably, the lower pressing assembly comprises a fixing ring, and a pair of second handles are fixedly installed on the fixing ring.

[0010] Preferably, a pair of first handles are fixedly installed on the lifting rod.

[0011] Preferably, a pair of footboards are fixedly installed on the fixing cylinder.

[0012] Preferably, the top of the push plate is provided with an arc-shaped positioning slot, and the bottom of the lifting rod is fixedly installed with a positioning block matched with the arc-shaped positioning slot.

[0013] Beneficial effects

[0014] The utility model provides a surface soil quantitative stratified sampler, has the following beneficial effects:

[0015] 1. Through the installation of the square ring knife, the square ring knife is inserted into the soil, the lifting rod is installed, the lifting of the lifting rod drives the lifting of the push plate, the position of the push plate in the square ring knife is adjusted, the quantitative stratified sampling is facilitated, the scale line is set up, the position of the push plate is observed, the positioning slot and the positioning assembly are set up, the position of the lifting rod is temporarily determined, the position of the push plate is temporarily determined, the square ring knife is changed into the quantitative device, the quantitative stratified sampling is facilitated, the lower pressing assembly is installed, the pressing of the lower pressing assembly drives the lifting of the push plate, the soil after sampling is pushed out, the push plate is separated from the bottom of the lifting rod, the depth of insertion into the soil is controlled through the above structure, the quantitative stratified sampling of the soil is carried out and the soil sample is pushed out.

[0016] 2. The fixing base is installed, the positioning plug can move in the fixing base, the spring is set up, the extension and contraction of the spring drives the movement of the positioning plug, when the lifting rod drives the positioning slot to move to the position corresponding to the positioning plug, the extension of the spring drives the movement of the positioning plug into the half-ball slot, the temporary positioning of the lifting rod is carried out, the temporary positioning of the push plate is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the internal structure of the utility model;

[0018] Figure 2 It is Figure 1 It is a sectional view of B-B;

[0019] Figure 3For Figure 2 enlarged schematic view at A in the middle.

[0020] In the figure: 1, square ring knife; 2, fixed cylinder; 3, lifting rod; 4, positioning groove; 41, semispherical groove; 42, shaft groove; 43, fixed seat; 44, positioning plug; 45, spring; 46, positioning rod; 5, guide rod; 6, push plate; 7, first handle; 8, fixed ring; 9, second handle; 10, pedal; 11, arc positioning groove; 12, positioning block; 13, scale line. DETAILED DESCRIPTION

[0021] 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, and the directions such as "upper", "lower", and the like mentioned herein are with reference to the orientation of Figure 1 .

[0022] Please refer to Figures 1-3 , the utility model provides a technical scheme: a kind of surface soil quantitative stratified sampler, including square ring knife 1;Square ring knife 1 inside movably installed with push plate 6, square ring knife 1 top fixedly installed with fixed cylinder 2, fixed cylinder 2 inside slidingly installed with lifting rod 3, lifting rod 3 bottom extends into square ring knife 1 and is movably connected with push plate 6, lifting rod 3 is provided with scale line 13, lifting rod 3 in fixed cylinder 2 is equipped with several positioning grooves 4, fixed cylinder 2 is provided with the positioning assembly matched with positioning groove 4, fixed cylinder 2 movably installs a pair of guide rod 5, guide rod 5 bottom penetrates square ring knife 1 and is fixedly connected with push plate 6, guide rod 5 top fixedly installed with lower pressing assembly, by being installed with square ring knife 1, it is convenient to insert square ring knife 1 into soil, by being installed with lifting rod 3, lifting rod 3 lifting can drive push plate 6 to lift, to adjust the position of push plate 6 in square ring knife 1, to facilitate quantitative sampling, by being provided with scale line 13, it is convenient to observe the position of push plate 6 to descend, by being equipped with positioning groove 4 and positioning assembly, both can be used for temporary lifting rod 3 position, to temporarily define the position of push plate 6, can make square ring knife 1 become quantitative device, to facilitate quantitative stratified sampling, by being installed with lower pressing assembly, press lower pressing assembly can drive guide rod 5 and push plate 6 to descend, to facilitate the soil of sampling to be pushed out, at this time push plate 6 and lifting rod 3 bottom are separated, by the above structure, it is convenient to control the depth of insertion into soil, quantitative sampling can be carried out to soil and it is convenient to push out soil sample.

[0023] Further, the positioning groove 4 comprises a hemispherical groove 41 and a shaft groove 42, a plurality of hemispherical grooves 41 are uniformly arranged on the lifting rod 3, the positioning assembly comprises a positioning plug 44 and a positioning rod 46, a fixed seat 43 is fixedly installed on the inner wall of the fixed cylinder 2, the positioning plug 44 matched with the hemispherical groove 41 is slidingly installed in the fixed seat 43, a spring 45 is arranged between the positioning plug 44 and the fixed seat 43, the positioning plug 44 can move in the fixed seat 43 by installing the fixed seat 43, the spring 45 can drive the positioning plug 44 to move by expansion, when the lifting rod 3 drives the positioning groove 4 to move to the position corresponding to the positioning plug 44, the spring 45 is elongated to drive the positioning plug 44 to move into the hemispherical groove 41, the lifting rod 3 can be temporarily positioned to temporarily position the push plate 6, so that the inaccuracy of the fixed position caused by the movement of the lifting rod 3 during the fixing of the lifting rod 3 is avoided.

[0024] Further, the shaft groove 42 is arranged in the lifting rod 3 and communicates with the hemispherical groove 41, the positioning rod 46 is movably installed on the side wall of the fixed cylinder 2, one end of the positioning rod 46 penetrates through the fixed seat 43 and is movably inserted into the shaft groove 42, the position of the lifting rod 3 can be fixed by inserting the positioning rod 46 into the shaft groove 42.

[0025] Further, the lower pressing assembly comprises a fixed ring 8, the fixed ring 8 is fixedly installed on the top of the pair of guide rods 5, a pair of second handles 9 are fixedly installed on the fixed ring 8, the pair of guide rods and the push plate 6 can be driven to descend together by installing the second handles 9 and pressing the second handles 9, so that the soil in the square ring knife 1 can be pushed out.

[0026] Further, a pair of first handles 7 are fixedly installed on the lifting rod 3, the lifting rod 3 can be lifted or lowered by installing the first handles 7 and moving the first handles 7.

[0027] Further, a pair of footboards 10 are fixedly installed on the fixed cylinder 2, the square ring knife 1 can be further conveniently inserted into the soil by arranging the footboards 10.

[0028] Further, an arc-shaped positioning groove 11 is arranged on the top of the push plate 6, a positioning block 12 matched with the arc-shaped positioning groove 11 is fixedly installed on the bottom of the lifting rod 3, the positioning block 12 is located in the arc-shaped positioning groove 11 when the position of the lifting rod 3 is temporarily positioned by arranging the mutually matched arc-shaped positioning groove 11 and the positioning block 12, the lifting rod 3 can drive the push plate 6 to ascend or descend, the push plate 6 is separated from the positioning rod 46 when the guide rod drives the push plate 6 to descend and push the soil out, at this time, the positioning block 12 is separated from the arc-shaped positioning groove 11.

[0029] The working principle and use process of the utility model: in use, the positioning rod 46 is pulled out, the first handle 7 is moved, the lifting rod 3 is driven to lift, the eye observes the scale line 13 on the lifting rod 3 until the soil amount to be sampled is stopped, after stopping, the temporary positioning of the lifting rod 3 can be carried out through the cooperation of the positioning plug 44 and the hemispherical groove 41, the positioning rod 46 is inserted into the positioning groove 4 after the soil amount to be sampled is determined again, a pair of first handles 7 is grabbed, the pedal 10 is stepped on, the square ring knife 1 is inserted into the soil to be sampled, after sampling is finished, the surrounding soil is dug away with the engineer shovel, the depth is greater than the ring knife height 50mm or so, the whole ring knife is horizontally dug down with the engineer shovel at 20mm-30mm at the lower end of the ring knife, the soil surface at the lower end of the ring knife is cut flat with the knife, a pair of second handles 9 is moved and drives the guide rod 5 to descend and thus drives the push plate 6 to descend, positioning block 12 is separated from the arc-shaped positioning groove 11 at this time, the push plate 6 pushes the sampling soil in the square ring knife 1 out to the collection bag and collects.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A quantitative horizon soil sampler for surface soil, characterized by, The utility model provides a square ring cutter (1), push board (6) is movably installed in square ring cutter (1), fixed cylinder (2) is fixedly installed at square ring cutter (1) top, lifting rod (3) is slidably installed in fixed cylinder (2), and lifting rod (3) bottom extends to square ring cutter (1) and is movably connected with push board (6), scale line (13) is arranged on lifting rod (3), a plurality of positioning groove (4) are formed in lifting rod (3) in fixed cylinder (2), positioning assembly that is matched with positioning groove (4) is arranged on fixed cylinder (2), a pair of guide rod (5) is movably installed on fixed cylinder (2), and guide rod (5) bottom penetrates square ring cutter (1) and is fixedly connected with push board (6), and lower pressing assembly is fixedly installed on guide rod (5) top.

2. A quantitative horizon soil sampler according to claim 1, wherein, The positioning groove (4) includes hemisphere groove (41) and shaft groove (42), a plurality of hemisphere groove (41) are evenly formed in lifting rod (3), the positioning assembly includes positioning plug (44), positioning rod (46), the fixed seat (43) is fixedly installed on the inner wall of fixed cylinder (2), the positioning plug (44) that is matched with hemisphere groove (41) is slidably installed in fixed seat (43), and spring (45) is arranged between positioning plug (44) and fixed seat (43).

3. A quantitative horizon soil sampler according to claim 2, wherein, The shaft groove (42) is formed in the lifting rod (3), the shaft groove (42) is communicated with the hemisphere groove (41), and the positioning rod (46) is movably installed on the side wall of the fixed cylinder (2), one end of the positioning rod (46) penetrates the fixed seat (43), and the positioning plug (44) is movably inserted in the shaft groove (42).

4. The quantitative layered soil sampler of claim 1, wherein, The lower pressing assembly includes a fixed ring (8), a pair of the guide rod (5) top is fixedly installed with the fixed ring (8), and a pair of second handles (9) is fixedly installed on the fixed ring (8).

5. The quantitative layered soil sampler of claim 1, wherein, A pair of first handles (7) is fixedly installed on the lifting rod (3).

6. A quantitative horizon soil sampler according to claim 1, wherein, A pair of footboards (10) is fixedly installed on the fixed cylinder (2).

7. The quantitative layered soil sampler of claim 1, wherein, The push board (6) top is provided with an arc-shaped positioning groove (11), and the bottom of the lifting rod (3) is fixedly installed with a positioning block (12) matched with the arc-shaped positioning groove (11).

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