Soil sampling device

Abstract

The utility model relates to the technical field of soil sampling, and provides a soil sampling device which comprises a bottom plate and a first push rod, the first push rod is fixedly connected to the upper surface of the bottom plate, two brake universal wheels are arranged on the lower surface of the bottom plate, a downward moving mechanism is arranged on the lower surface of the bottom plate, and a sampling mechanism is arranged in an inner cavity of the downward moving mechanism; an operator starts a motor to drive a screw rod to rotate, so that a lower moving plate and an inserting rod move downwards to be inserted into soil, then the operator presses a pressing rod downwards to drive an inclined push plate to move downwards to extrude a second push rod, and at the moment, the second push rod moves inwards to extrude and push soil in an inserting hole into a sampling hole of a collecting box; at the moment, the soil with different heights in the insertion holes is sequentially pushed into the sampling holes of the collection box to be uniformly collected in batches, manual sample loading is not needed, the complexity of sample loading is reduced, meanwhile, hands and clothes of operators are prevented from being stained, and through the technical scheme, the defects existing in the prior art are overcome.

Description

Technical Field

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

[0002] In order to measure the nutrient content, pests and diseases in the soil, and thus better guide agricultural production and environmental protection, scientific researchers need to use sampling devices to sample the soil in different regions to determine the content of nitrogen, phosphorus, potassium and other trace elements in the soil and understand the soil fertility level. This is important for the rational application of chemical fertilizers and organic fertilizers and improving the yield and quality of crops.

[0003] When sampling soil, first select a suitable sampling location and depth, use the matching excavation tools to dig or insert the tube device into the soil to obtain a large enough soil volume, then put the removed soil into a container, and finally send the obtained soil sample to the laboratory for further analysis and testing.

[0004] In actual use of the prior art, after the soil is taken out, the sampling personnel need to manually put the soil from different positions into containers in sections. The operation is cumbersome and it is easy to stain the hands or clothes, which brings inconvenience to the sampling personnel. Therefore, a soil sampling device is proposed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the problems existing in the prior art, the utility model provides a soil sampling device.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a soil sampling device, including a bottom plate and a first push rod, the first push rod is fixedly connected to the upper surface of the bottom plate, characterized in that: two brake universal wheels are arranged on the lower surface of the bottom plate, a downward movement mechanism is arranged on the lower surface of the bottom plate, and a sampling mechanism is arranged in the inner cavity of the downward movement mechanism;

[0009] The downward movement mechanism comprises a motor fixedly connected to the lower surface of the bottom plate, the output shaft end of the motor passes through the bottom plate and is fixedly connected to a screw rod, the outer surface of the screw rod is threadedly connected to the downward movement plate, the lower surface of the downward movement plate is fixedly connected to an insertion rod, and the lower surface of the insertion rod is provided with an insertion hole;

[0010] The sampling mechanism comprises a collecting box movably connected to the inner cavity of the insertion rod, the outer surface of the collecting box is fixedly connected with an L-shaped plate, the inner cavity of the L-shaped plate is interspersed with a limit rod, the inner cavity of the limit rod is interspersed with a pull rod, the lower end of the pull rod is fixedly connected with a pull plate, the lower surface of the pull plate is fixedly connected with a moving rod, the outer surface of the moving rod is sleeved with a spring, the inner cavity of the insertion rod is movably connected with a second push rod, the outer surface of the second push rod is fixedly connected with a push plate, one side of the push plate is fixedly connected with a telescopic rod, the outer surface of the telescopic rod is sleeved with a connecting spring, the inner cavity of the insertion rod is movably connected with an inclined push plate, the upper surface of the inclined push plate is fixedly connected with a pressing rod, the inner cavity of the insertion rod is movably connected with a downward pressing rod, the lower end of the downward pressing rod is fixedly connected with a scraper, and the outer surfaces of the pressing rod and the downward pressing rod are both sleeved with downward pressing springs.

[0011] As a preferred solution of the soil sampling device of the utility model, two supporting legs are fixedly connected to the lower surface of the bottom plate, and a rubber pad is fixedly connected to the outer surface of the first push rod.

[0012] As a preferred solution of the soil sampling device of the utility model, one end of the limit rod is fixedly connected to the outer surface of the insertion rod, and the inner cavity of the collection box is provided with a sampling hole.

[0013] As a preferred solution of the soil sampling device of the utility model, the moving rod moves in the inner cavity of the L-shaped plate, the upper end of the spring is fixedly connected to the pull plate, and the lower end of the spring is fixedly connected to the upper surface of the L-shaped plate.

[0014] As a preferred solution of the soil sampling device described in the utility model, the beveled surface of the second push rod abuts against the beveled surface of the inclined push plate, one end of the telescopic rod is fixedly connected to the inner wall of the insertion rod, one end of the connecting spring is fixedly connected to the push plate, and the other end of the connecting spring is fixedly connected to the inner wall of the insertion rod.

[0015] As a preferred solution of the soil sampling device described in the utility model, the scraper moves in the socket, the lower end of the downward pressure spring is fixedly connected to the downward plate, the upper end of the downward pressure spring is respectively connected to the pressing rod and the downward pressure rod, and the pressing rod and the downward pressure rod respectively move in the inner cavity of the downward plate.

[0016] (III) Beneficial effects

[0017] The utility model provides a soil sampling device, which has the following beneficial effects:

[0018] 1. The operator starts the motor to drive the screw to rotate so that the lower plate and the insertion rod move downward and insert into the soil. Then the operator presses the pressing rod downward to drive the inclined push plate to move downward to squeeze the push rod. At this time, the push rod moves inward to squeeze the soil in the socket into the sampling hole of the collection box. At this time, the soil at different heights in the socket is pushed into the sampling hole of the collection box in turn for unified collection in batches. There is no need for manual sampling, which reduces the tediousness of sampling and avoids stains on the operator's hands and clothes.

[0019] 2. The operator presses down the pressure rod to squeeze the pressure spring. When the pressure rod moves downward, it drives the scraper to move downward in the socket to scrape the remaining soil in the socket to the outside of the socket, so that the sampling personnel can quickly clean the inside of the rod and avoid the situation where the soil remains deep inside the socket and becomes difficult to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a half-section schematic diagram of the internal structure of the utility model;

[0023] Figure 3 This utility model Figure 2 -A schematic diagram of the enlarged structure;

[0024] Figure 4 This utility model Figure 2 -Enlarged structural diagram at point B.

[0025] In the figure, 1, bottom plate; 101, supporting leg; 102, brake universal wheel; 103, push rod; 2, downward movement mechanism; 201, motor; 202, screw; 203, downward movement plate; 204, plug rod; 205, socket; 3, sampling mechanism; 301, collecting box; 302, L-shaped plate; 303, limit rod; 304, moving rod; 305, pull plate; 306, pull rod; 307, spring; 308, sampling hole; 309, push rod; 310, push plate; 311, telescopic rod; 312, connecting spring; 313, inclined push plate; 314, pressing rod; 315, downward pressure rod; 316, scraper; 317, downward pressure spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] Example 1

[0028] Reference Figure 1 and Figure 2 , which is the first embodiment of the utility model, and provides a soil sampling device, including a bottom plate 1 and a first push rod 103, the first push rod 103 is fixedly connected to the upper surface of the bottom plate 1, two brake universal wheels 102 are arranged on the lower surface of the bottom plate 1, a downward movement mechanism 2 is arranged on the lower surface of the bottom plate 1, and a sampling mechanism 3 is arranged in the inner cavity of the downward movement mechanism 2;

[0029] The downward movement mechanism 2 includes a motor 201 fixedly connected to the lower surface of the bottom plate 1, the output shaft end of the motor 201 passes through the bottom plate 1 and is fixedly connected to a screw rod 202, the outer surface of the screw rod 202 is threadedly connected to a downward movement plate 203, the lower surface of the downward movement plate 203 is fixedly connected to an insertion rod 204, and the lower surface of the insertion rod 204 is provided with an insertion hole 205;

[0030] Specifically, two supporting legs 101 are fixedly connected to the lower surface of the bottom plate 1 , and a rubber pad is fixedly connected to the outer surface of the first push rod 103 .

[0031] Furthermore, the operator holds the first push rod 103 to drive the device to tilt slightly and move it to the designated sampling location of the soil through the brake universal wheel 102, and then lays it flat and supports it through the support legs 101. At this time, the insertion rod 204 is located above the designated sampling soil. The operator starts the motor 201 to drive the screw 202 to rotate so that the lower plate 203 moves downward. When the lower plate 203 moves downward, it drives the insertion rod 204 to move downward and insert it into the soil. At this time, the soil enters the inside of the insertion hole 205.

[0032] Example 2

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment, and a sampling mechanism 3 is provided in the inner cavity of the downward movement mechanism 2;

[0034] The sampling mechanism 3 includes a collecting box 301 movably connected to the inner cavity of the insertion rod 204, an L-shaped plate 302 is fixedly connected to the outer surface of the collecting box 301, a limit rod 303 is inserted into the inner cavity of the L-shaped plate 302, a pull rod 306 is inserted into the inner cavity of the limit rod 303, a pull plate 305 is fixedly connected to the lower end of the pull rod 306, a moving rod 304 is fixedly connected to the lower surface of the pull plate 305, a spring 307 is sleeved on the outer surface of the moving rod 304, and a second push rod 309 is movably connected to the inner cavity of the insertion rod 204. The outer surface of the second push rod 309 is fixedly connected to a push plate 310, one side of the push plate 310 is fixedly connected to a telescopic rod 311, the outer surface of the telescopic rod 311 is sleeved with a connecting spring 312, the inner cavity of the insertion rod 204 is movably connected to an inclined push plate 313, the upper surface of the inclined push plate 313 is fixedly connected to a pressing rod 314, the inner cavity of the insertion rod 204 is movably connected to a pressing rod 315, the lower end of the pressing rod 315 is fixedly connected to a scraper 316, and the outer surfaces of the pressing rod 314 and the pressing rod 315 are sleeved with pressing springs 317;

[0035] Specifically, one end of the limit rod 303 is fixedly connected to the outer surface of the insertion rod 204, and a sampling hole 308 is opened in the inner cavity of the collecting box 301. The moving rod 304 moves in the inner cavity of the L-shaped plate 302. The upper end of the spring 307 is fixedly connected to the pull plate 305, and the lower end of the spring 307 is fixedly connected to the upper surface of the L-shaped plate 302. The beveled surface of the second push rod 309 abuts against the beveled surface of the inclined push plate 313. One end of the telescopic rod 311 is fixedly connected to the inner wall of the insertion rod 204, one end of the connecting spring 312 is fixedly connected to the push plate 310, and the other end of the connecting spring 312 is fixedly connected to the inner wall of the insertion rod 204. The scraper 316 moves in the socket 205, the lower end of the downward pressure spring 317 is fixedly connected to the downward moving plate 203, and the upper ends of the downward pressure spring 317 are respectively connected to the pressing rod 314 and the downward pressure rod 315, and the pressing rod 314 and the downward pressure rod 315 move in the inner cavity of the downward moving plate 203.

[0036] The second push rod 309 is then pushed inwardly to push the soil in the insertion hole 205 into the sampling hole 308 of the collecting box 301, and the telescopic rod 311 and the connecting spring 312 are squeezed. The second push rod 309 is continuously moved downward to squeeze multiple second push rods 309 to move inwardly. At this time, the soil at different heights in the insertion hole 205 is pushed into the sampling hole 308 of the collecting box 301 in turn for unified collection. After the collection is completed, the operator releases the force of pressing the pressing rod 314, and the elastic force of the downward pressing spring 317 drives the pressing rod 314 to move upward back to the original position. At the same time, the elastic force of the connecting spring 312 automatically drives the second push rod 309 and the telescopic rod 311 to move to the original position for the next sampling. At this time, the soil at different heights to be sampled is collected in the sampling hole 308 in batches in turn without human intervention. The operator then starts the motor 201 to drive the screw rod 202 to reverse and drive the lower plate 203 to move upward to its original position. At this time, the operator presses the lower pressure rod 315 downward to squeeze the lower pressure spring 317. When the lower pressure rod 315 moves downward, it drives the scraper 316 to move downward in the socket 205 to scrape the remaining soil in the socket 205 to the outside of the socket 205, so that the sampling personnel can quickly clean the inside of the plug rod 204 and avoid the situation where the soil remains deep inside the socket 205 and is difficult to clean. The collection box 301 can drive the pull plate 305 and the pull rod 306 to move downward and leave the inner cavity of the limit rod 303 by pulling the moving rod 304 downward. At this time, the L-shaped plate 302 loses its fixed limit and the collection box 301 can be taken out from the inner cavity of the plug rod 204, and the collection box 301 filled with soil can be moved to the soil detection location, which improves the convenience and practicality of the device during sampling.

[0037] Working principle: During the actual use of the device, the operator holds the first push rod 103 to drive the device to tilt slightly and move it to the designated sampling location of the soil through the brake universal wheel 102, and then puts it flat and supports it through the support legs 101. At this time, the insertion rod 204 is located above the designated sampling soil. The operator starts the motor 201 to drive the screw rod 202 to rotate so that the lower plate 203 moves downward. When the lower plate 203 moves downward, it drives the insertion rod 204 to move downward and insert into the soil. At this time, the soil enters the inside of the insertion hole 205, and the operator presses the pressing rod 314 downward to squeeze the pressing spring The spring 317 drives the inclined push plate 313 to move downward and squeeze the second push rod 309. At this time, the second push rod 309 moves inward to squeeze the soil in the socket 205 into the sampling hole 308 of the collection box 301, and squeezes the telescopic rod 311 and the connecting spring 312. The second push rod 309 continues to move downward to squeeze multiple second push rods 309 to move inward. At this time, the soil at different heights in the socket 205 is pushed into the sampling hole 308 of the collection box 301 in turn for unified collection. After the collection is completed, the operator releases the force of pressing the pressing rod 314 and drives the pressing rod 314 to move inward through the elastic force of the downward pressing spring 317. 4 moves upward to return to the original position, and at the same time, the elastic force of the connecting spring 312 automatically drives the second push rod 309 and the telescopic rod 311 to move to the original position, which is convenient for the next sampling. At this time, the soils of different heights to be sampled are collected in batches in the sampling hole 308 in sequence, without manual sampling, which reduces the tediousness of sampling and avoids the operator's hands and clothes from being stained. Then, the motor 201 is started to drive the screw rod 202 to reverse and drive the lower moving plate 203 to move upward to the original position. At this time, the operator presses the lower pressing rod 315 downward to squeeze the lower pressing spring 317. When the lower pressing rod 315 moves downward, it drives the scraper 316 to The insertion hole 205 moves downward to scrape the remaining soil in the insertion hole 205 to the outside of the insertion hole 205, which is convenient for the sampling personnel to quickly clean the inside of the insertion rod 204 and avoid the situation where soil remains deep inside the insertion hole 205 and it is difficult to clean. The collection box 301 can drive the pull plate 305 and the pull rod 306 to move downward and leave the inner cavity of the limit rod 303 by pulling the moving rod 304 downward. At this time, the L-shaped plate 302 loses its fixed limit and the collection box 301 can be taken out of the inner cavity of the insertion rod 204, and the collection box 301 filled with soil can be moved to the soil detection location, which improves the convenience and practicality of the device when sampling.

[0038] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A soil sampling device, comprising a base plate (1) and a first push rod (103), wherein the first push rod (103) is fixedly connected to the upper surface of the base plate (1), characterized in that: The lower surface of the base plate (1) is provided with two brake universal wheels (102), the lower surface of the base plate (1) is provided with a downward movement mechanism (2), and the inner cavity of the downward movement mechanism (2) is provided with a sampling mechanism (3); The downward movement mechanism (2) comprises a motor (201) fixedly connected to the lower surface of the base plate (1); the output shaft end of the motor (201) passes through the base plate (1) and is fixedly connected to a screw rod (202); the outer surface of the screw rod (202) is threadedly connected to a downward movement plate (203); the lower surface of the downward movement plate (203) is fixedly connected to an insertion rod (204); and the lower surface of the insertion rod (204) is provided with an insertion hole (205); The sampling mechanism (3) comprises a collecting box (301) movably connected to the inner cavity of the insertion rod (204); the outer surface of the collecting box (301) is fixedly connected to an L-shaped plate (302); a limiting rod (303) is inserted into the inner cavity of the L-shaped plate (302); a pulling rod (306) is inserted into the inner cavity of the limiting rod (303); the lower end of the pulling rod (306) is fixedly connected to a pulling plate (305); the lower surface of the pulling plate (305) is fixedly connected to a moving rod (304); a spring (307) is sleeved on the outer surface of the moving rod (304); the inner cavity of the insertion rod (204) is movably connected to a second pushing rod (309); The outer surface of the second push rod (309) is fixedly connected to a push plate (310), one side of the push plate (310) is fixedly connected to a telescopic rod (311), the outer surface of the telescopic rod (311) is sleeved with a connecting spring (312), the inner cavity of the insertion rod (204) is movably connected to an inclined push plate (313), the upper surface of the inclined push plate (313) is fixedly connected to a pressing rod (314), the inner cavity of the insertion rod (204) is movably connected to a downward pressing rod (315), the lower end of the downward pressing rod (315) is fixedly connected to a scraper (316), and the outer surfaces of the pressing rod (314) and the downward pressing rod (315) are sleeved with downward pressing springs (317).

2. A soil sampling device according to claim 1, characterized in that: Two supporting legs (101) are fixedly connected to the lower surface of the base plate (1), and a rubber pad is fixedly connected to the outer surface of the first push rod (103).

3. A soil sampling device according to claim 1, characterized in that: One end of the limiting rod (303) is fixedly connected to the outer surface of the insertion rod (204), and the inner cavity of the collecting box (301) is provided with a sampling hole (308).

4. A soil sampling device according to claim 1, characterized in that: The moving rod (304) moves in the inner cavity of the L-shaped plate (302), the upper end of the spring (307) is fixedly connected to the pull plate (305), and the lower end of the spring (307) is fixedly connected to the upper surface of the L-shaped plate (302).

5. A soil sampling device according to claim 1, characterized in that: The beveled surface of the second push rod (309) abuts against the beveled surface of the beveled push plate (313), one end of the telescopic rod (311) is fixedly connected to the inner wall of the insertion rod (204), one end of the connecting spring (312) is fixedly connected to the push plate (310), and the other end of the connecting spring (312) is fixedly connected to the inner wall of the insertion rod (204).

6. A soil sampling device according to claim 1, characterized in that: The scraper (316) moves in the insertion hole (205), the lower end of the downward pressure spring (317) is fixedly connected to the downward plate (203), the upper end of the downward pressure spring (317) is respectively connected to the pressing rod (314) and the downward pressure rod (315), and the pressing rod (314) and the downward pressure rod (315) respectively move in the inner cavity of the downward plate (203).

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