Sample storage equipment for agricultural soil fertilizer detection

Abstract

The invention relates to the technical field of sample storage, in particular to agricultural soil fertilizer detection sample storage equipment which comprises a storage box, a cover plate and the like. The storage box is detachably connected with a cover plate; the storage box and the cover plate are both made of heat insulation materials. Gas on the upper side of the filter screen is compressed through downward movement of the pressing plate, then viscous soil penetrates through the filter screen under the action of air pressure, screening work of the viscous soil is completed by pressing the pressing plate in a reciprocating mode by a worker, and the self-adaptability of the equipment is improved; large-particle impurities on the upper side of the filter screen are pulled back and forth through the derrick mast, holes blocked by the filter screen are leaked out, then under the action of air pressure, a soil sample normally enters the storage box through the holes of the filter screen, and the sampling capacity of equipment on the soil sample is improved; the soil samples are separated through the pulling plate, the soil samples located on the lower side of the pulling plate are stored in the collecting box, the soil samples located on the upper side of the pulling plate are sealed and stored again under the cooperation of the cover plate, the partition plate and the pulling plate, and the protection effect on the soil samples is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sample storage, and in particular to a sample storage device for agricultural soil and fertilizer detection. Background Art

[0002] In the process of soil sampling, large particles of impurities are usually screened out through a filter, and then the screened soil is sealed and stored. In the process of soil screening, considering that the soil with a high moisture content is in a sticky state, when the sticky soil is placed on the filter for screening, it is difficult to screen the sticky soil by simply shaking or vibrating the filter. The soil is more likely to adhere to and clog the holes of the filter, making it difficult to screen and collect the soil. At the same time, since the soil is a dynamic ecosystem, its properties will change with time and environmental factors. Preserving some soil samples can be used for long-term monitoring of changes in the physical, chemical and biological properties of the soil. Before testing, generally only part of the soil is taken out, and then the untaken soil is stored again for a long time. In the sampling process, the storage device needs to be opened. For the soil stored for a long time, the microorganisms in it are very sensitive to environmental changes. After the storage device is opened, outside air will enter, which will affect the original biological structure of the soil sample. When the soil sample is taken out through the sampling device, the sampling device itself will retain the soil sample, which will cause the loss of the soil sample. When there is a need for quantitative removal, the sample taken out will be inaccurate. Summary of the invention

[0003] In order to overcome the shortcomings that sticky soil is difficult to screen, outside air can easily enter the storage device and contact the soil sample during the sampling process, and the sampling device will leave soil samples, resulting in inaccurate soil samples during subsequent testing, the present invention provides a sample storage device for agricultural soil and fertilizer testing.

[0004] The technical solution is: a sample storage device for agricultural soil and fertilizer testing, including a storage box and a cover; the storage box is detachably connected to the cover; the storage box and the cover are both made of heat-insulating material; it also includes a pull rod, a connecting rod, a pressure plate, a screening assembly and a sampling assembly; a pull rod is slidably connected inside the storage box; a number of connecting rods are arranged on the pull rod; each connecting rod is equipped with a pressure plate for facilitating the screening of soils with high viscosity; a screening assembly is arranged in the storage box to prevent cross-contamination of soil samples; a sampling assembly is arranged in the storage box to facilitate the quantitative removal of soil samples.

[0005] Optionally, the screening component includes a partition and a filter; a plurality of partitions are fixedly connected in the storage box to prevent cross contamination of soil samples; and a filter for removing large particles of impurities is commonly fixedly connected between every two adjacent partitions.

[0006] Optionally, the sampling assembly includes a pumping plate and a collecting box; a pumping plate for quantitatively taking out soil samples is commonly inserted between every two adjacent partitions; a collecting box is commonly inserted between every two adjacent partitions; and each collecting box is located at the lower side of an adjacent pumping plate.

[0007] Optionally, an adjustment plate is also included; a plurality of slots are provided in the storage box; an adjustment plate adapted to collection boxes of different capacities is slidably connected in each slot; and each adjustment plate is fixedly connected to the storage box via a spring.

[0008] Optionally, a pick rod is also included; a pick rod is fixedly connected to the lower side of each connecting rod to prevent large particles of impurities from clogging the filter screen; each pick rod is slidably connected to an adjacent pressure plate, and an elastic cloth is arranged between each pick rod and the adjacent pressure plate.

[0009] Optionally, a breaking rod is also included; a plurality of breaking rods are fixedly connected to the lower side of each pumping plate to prevent the soil sample from agglomerating.

[0010] Optionally, each pick rod is made of elastic rubber material.

[0011] Optionally, a cutting edge is provided on the side of each draw plate in contact with the partition plate.

[0012] Optionally, each draw plate surface is coated with an anti-stick coating.

[0013] Optionally, it also includes baffles; each partition is provided with a heat conduction groove; a plurality of baffles for improving the soil storage effect are slidably connected to the storage box, and each baffle is fitted with an adjacent heat conduction groove.

[0014] The beneficial effects of the present invention are as follows: the present invention realizes that the gas on the upper side of the filter screen is compressed by moving the pressing plate downward, so that the viscous soil passes through the filter screen under the action of the gas pressure, and the viscous soil is screened by the worker pressing the pressing plate back and forth, thereby improving the adaptability of the equipment; The large particles of impurities on the upper side of the filter are moved back and forth by the lever, so that the blocked holes of the filter are leaked out, and then under the action of air pressure, the soil sample passes through the holes of the filter and enters the storage box normally, thus improving the sampling capacity of the equipment for soil samples; The soil samples are separated by the draw plate, the soil samples located at the lower side of the draw plate are stored in the collection box, and the soil samples located at the upper side of the draw plate are resealed and preserved with the cooperation of the cover plate, the partition plate and the draw plate, thereby improving the protection effect of the soil samples; The soil in the collection box is moved by a rod to make it looser, and then the collection box is taken out and placed in a special drying device to make the moisture in the soil sample easier to evaporate. The outdoor storage and laboratory storage can be switched by rising and falling of the barrier bar, thus improving the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the sample storage device for agricultural soil and fertilizer detection of the present invention; Figure 2 It is a combined cross-sectional view of the storage box and the cover plate of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the pick rod of the present invention; Figure 4 It is an exploded view of the drawer plate, the collecting box and the regulating plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the baffle bar of the present invention; Figure 6 This is a diagram of the baffle bar of the present invention in an expanded state.

[0016] Markings in the accompanying drawings: 1-storage box, 1001-card slot, 2-cover plate, 3-pull rod, 4-connecting rod, 5-pressure plate, 101-partition, 10101-heat conduction groove, 102-filter, 103-drawing plate, 104-collecting box, 105-adjusting plate, 106-pulling rod, 107-breaking rod, 201-blocking bar. DETAILED DESCRIPTION

[0017] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0018] Example 1 like Figure 1-Figure 4 As shown, a sample storage device for agricultural soil and fertilizer testing includes a storage box 1 and a cover plate 2; the storage box 1 is detachably connected to the cover plate 2; the storage box 1 and the cover plate 2 are both made of heat-insulating material; It also includes a pull rod 3, a connecting rod 4, a pressure plate 5, a screening assembly and a sampling assembly; a pull rod 3 is slidably connected inside the storage box 1; a plurality of connecting rods 4 are arranged on the pull rod 3; a pressure plate 5 is installed on each connecting rod 4; a screening assembly is arranged inside the storage box 1; a sampling assembly is arranged inside the storage box 1.

[0019] The screening component includes a partition 101 and a filter 102 ; a plurality of partitions 101 are fixedly connected in the storage box 1 ; and a filter 102 is commonly fixedly connected between every two adjacent partitions 101 .

[0020] The sampling assembly includes a pumping plate 103 and a collecting box 104 ; a pumping plate 103 is commonly inserted between each two adjacent partitions 101 ; a collecting box 104 is commonly inserted between each two adjacent partitions 101 ; each collecting box 104 is located at the lower side of the adjacent pumping plate 103 .

[0021] It also includes an adjustment plate 105; a plurality of slots 1001 are provided in the storage box 1; an adjustment plate 105 is slidably connected in each slot 1001; and each adjustment plate 105 is fixedly connected to the storage box 1 via a spring.

[0022] It also includes a pick rod 106; a pick rod 106 is fixedly connected to the lower side of each connecting rod 4; each pick rod 106 is slidably connected to the adjacent pressing plate 5, and an elastic cloth is provided between each pick rod 106 and the adjacent pressing plate 5.

[0023] It also includes a breaking rod 107 ; a plurality of breaking rods 107 are fixedly connected to the lower side of each draw plate 103 .

[0024] Each of the pick rods 106 is made of elastic rubber material to prevent the pick rods 106 from scratching the filter screen 102 and causing damage to the filter screen 102 .

[0025] The side of each drawer plate 103 in contact with the partition plate 101 is provided with a cutting edge.

[0026] The surface of each draw plate 103 is coated with an anti-adhesion coating to prevent the soil sample from adhering to and remaining on the draw plate 103 , so that the soil is accurately isolated in the storage box 1 or falls into the collection box 104 .

[0027] Before sampling the soil sample, the worker first pulls out the cover plate 2 and the pull rod 3 from the storage box 1, and then opens the upper side of the storage box 1, and then puts the obtained soil samples into the storage box 1 in turn, and separates and stores the obtained soil samples through two adjacent partitions 101 to avoid cross-infection of different soil samples. In order to reduce the steps before the subsequent soil sample test, the soil is sieved by the filter 102 during the process of pouring the soil into the storage box 1, and then the large particles of impurities mixed in the soil are screened out, and the soil for testing normally passes through the filter 102 into the storage box 1, so as to avoid the soil containing large particles of impurities affecting the test, thereby reducing the subsequent steps of screening the soil. When using the filter 102 to sieve the soil, considering that the soil sample to be taken is deeper, the water content of the soil is higher at this time, which makes the soil more viscous. When pouring the viscous soil into the filter 102 for sieving, it is difficult to sieve the viscous soil by simply shaking or vibrating the filter 102. The soil is more likely to adhere to and clog the holes of the filter 102. Therefore, when screening the viscous soil, the worker first pours the soil on the surface of the filter 102, and then reinserts the cover plate 2 and the pull rod 3 into the storage box 1 to close the upper side of the storage box 1. Then the worker presses the pull rod 3 to move downward, thereby driving the connecting rod 4 and the pressure plate 5 to move downward, so that the pressure plate 5 is embedded between two adjacent partitions 101. Figure 2As shown, a closed space is formed by the cooperation of the storage box 1, the pressure plate 5 and the partition 101. At this time, the worker continues to press the pull rod 3 to move downward, so that the pressure plate 5 moves downward again, thereby compressing the gas on the upper side of the filter 102, and then the viscous soil on the filter 102 passes through the filter 102 under the action of air pressure. The worker presses the pressure plate 5 back and forth to complete the screening of the viscous soil, so that the device can screen loose soil with a small water content, and can also screen viscous soil with a large water content, thereby improving the adaptability of the equipment. Large particles of impurities cannot pass through the filter 102, and thus remain on the upper side of the filter 102. The large particles of impurities on the filter 102 are subsequently cleaned by workers.

[0028] Furthermore, when the content of large impurities in the soil is high, the large impurities tend to accumulate on the upper side of the filter screen 102, making it difficult for the soil that normally passes through to pass through the filter screen 102 due to the obstruction of the large impurities, thereby affecting the sampling of the soil. Therefore, by arranging a pick rod 106 at the lower side of the connecting rod 4, during the process of pressing the pull rod 3, the worker can also reciprocate the pull rod 3, thereby driving the connecting rod 4 and the pick rod 106 to reciprocate on the pressing plate 5. In this process, by An elastic cloth is arranged between 106 to prevent air leakage between the pressure plate 5 and the lifting rod 106 so as to prevent air pressure from being generated to squeeze the sticky soil. It should be noted that the lifting rod 106 only contacts the upper side of the filter screen 102. During the rotation of the lifting rod 106, the large particles of impurities on the upper side of the filter screen 102 are moved back and forth by the lifting rod 106 to make the holes blocked by the filter screen 102 leak out. Then, under the action of air pressure, the soil sample normally passes through the holes of the filter screen 102 into the storage box 1, thereby improving the sampling capacity of the equipment for soil samples.

[0029] It is also considered that when the soil needs to be taken out for testing, since the soil testing needs to go through multiple different testing methods to determine various data of the soil, the soil samples that have not been taken out from the storage box 1 need to be sealed and stored. Since the soil is a dynamic ecosystem, its properties will change with the change of time and environmental factors, and the preservation of some soil samples can be used for long-term monitoring of changes in the physical, chemical and biological properties of the soil. In the subsequent soil samples of the same land, they can be compared to determine the changes in the soil after a long time. In the existing process of taking out the soil sample from the storage box 1, the cover 2 is usually opened, and then the sampling equipment is used to extend into the storage box 1 to take out the soil sample. In this process, when the sampled soil sample is stored for a long time, opening the cover 2 will cause outside air to enter the storage box 1. The microorganisms in the soil stored for a long time are very sensitive to environmental changes, which will change the original biological structure of the soil sample. When the soil sample is taken out by the sampling equipment, the sampling equipment itself will retain the soil sample, which will cause the loss of the soil sample. When there is a need for quantitative removal, the sample taken out will be inaccurate. Therefore, by arranging the extraction plate 103 and the collection box 104 in the storage box 1, when sampling is needed, the worker holds the extraction plate 103 and extracts it from the storage box 1. It should be noted that when the soil sample is sieved into the storage box 1, the soil sample is The draw plate 103 is supported. When the draw plate 103 is pulled out of the storage box 1, the soil sample falls into the collection box 104 by its own gravity without being supported by the draw plate 103. Under the obstruction of the storage box 1 and the partition 101, the outside air first contacts the soil falling into the collection box 104, that is, the air contacts the soil in the collection box 104. Then, the worker immediately pushes the draw plate 103 back into the storage box 1. In this process, the soil sample that has not been taken out is isolated again by the draw plate 103, making it difficult for the air to contact the soil sample in the storage box 1. The soil sample located on the lower side of the draw plate 103 is stored in the collection box 104, and the soil sample located on the upper side of the draw plate 103 is stored between the cover plate 2 and the partition 101. 101 and the extraction plate 103 are resealed for storage. During the soil sampling process, the outside air is reduced from contacting the soil samples that do not need to be taken out, thereby improving the protection effect of the soil samples. At the same time, the required test soil is taken out through the collection box 104 without the help of additional sampling equipment, and there is no need to consider the residual problem of the sampling equipment. Subsequent workers can directly pull the collection box 104 off the storage box 1, and then directly perform the subsequent pre-test steps on the soil samples in the collection box 104, making the sampling process more convenient and effective for workers. Furthermore, the cutting edge set on the side where the extraction plate 103 contacts the partition 101 makes it easier and more convenient for the extraction plate 103 to pass through the soil sample.

[0030] It is also considered that after the soil samples are taken out, they need to be dried and crushed before being tested. During the drying process, in order to prevent the soil samples from becoming compacted and making it difficult for the moisture inside to evaporate, a breaking rod 107 is provided on the lower side of the withdrawal plate 103. Before completely pulling out the collection box 104, the worker can pull the collection box 104 back and forth to make the collection box 104 move back and forth on the lower side of the withdrawal plate 103, and then use the breaking rod 107 to move the soil in the collection box 104 to make the soil looser. Finally, the collection box 104 is pulled out separately and placed in a special drying device to make the moisture in the soil sample easier to evaporate.

[0031] It is also considered that by arranging an adjustment plate 105 in the storage box 1, before the collection box 104 is inserted into the storage box 1, the adjustment plate 105 pops out of the slot 1001 under the action of a spring, and when the collection box 104 needs to be inserted into the storage box 1, the worker first presses the adjustment plate 105 to move downward, and then inserts the collection box 104 into the storage box 1. During this process, the adjustment plate 105 is pressed against the lower side of the collection box 104 under the action of the spring to form a seal. Therefore, by inserting collection boxes 104 of different capacities into the storage box 1, different amounts of soil samples can be taken out, thereby improving the adaptability of the equipment.

[0032] Example 2 On the basis of Example 1, Figure 1 , Figure 5 and Figure 6 As shown, it also includes a baffle 201 ; each partition 101 is provided with a heat conduction groove 10101 ; a plurality of baffles 201 are slidably connected to the storage box 1 , and each baffle 201 is fitted with an adjacent heat conduction groove 10101 .

[0033] In order to prevent the outside temperature from affecting the soil samples in the storage box 1, the storage box 1 and the cover plate 2 are made of heat-insulating materials. During the process of temporarily storing the soil samples in the outside, the storage box 1 is used to prevent the outside temperature fluctuation from affecting the soil samples. When storing in the laboratory, there is usually a special constant temperature device to store the soil sample storage device at a constant temperature. In order to prevent the heat-insulating materials used in the storage box 1 and the cover plate 2 from blocking the constant temperature effect of the constant temperature device on the soil samples, the worker can push the baffle 201 upwards, so that the heat conduction groove 10101 leaks out. Figure 6 As shown, the heat emitted by the constant temperature device can contact the heat-conducting groove 10101, that is, directly act on the soil samples in the two partitions 101, and then switch between outdoor storage and laboratory storage by rising or falling the baffle 201, thereby improving the adaptability of the equipment.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample storage device for agricultural soil and fertilizer testing, comprising a storage box (1) and a cover plate (2); the storage box (1) is detachably connected to the cover plate (2); the storage box (1) and the cover plate (2) are both made of heat-insulating material; wherein: It also includes a pull rod (3), a connecting rod (4), a pressure plate (5), a screening component and a sampling component; the storage box (1) is slidably connected with the pull rod (3); a plurality of connecting rods (4) are arranged on the pull rod (3); each connecting rod (4) is equipped with a pressure plate (5) for facilitating the screening of soil with high viscosity; the storage box (1) is provided with a screening component for preventing cross contamination of soil samples; and the storage box (1) is provided with a sampling component for facilitating the quantitative removal of soil samples; The screening component comprises a partition (101) and a filter (102); a plurality of partitions (101) for preventing cross contamination of soil samples are fixedly connected in the storage box (1); and a filter (102) for removing large particle impurities is commonly fixedly connected between every two adjacent partitions (101).

2. The sample storage device for agricultural soil and fertilizer detection according to claim 1 is characterized in that: The sampling assembly comprises a drawing plate (103) and a collecting box (104); a drawing plate (103) for quantitatively taking out soil samples is commonly inserted between every two adjacent partitions (101); a collecting box (104) is commonly inserted between every two adjacent partitions (101); and each collecting box (104) is located at the lower side of an adjacent drawing plate (103).

3. The sample storage device for agricultural soil and fertilizer detection according to claim 2 is characterized in that: It also includes an adjustment plate (105); a plurality of slots (1001) are provided in the storage box (1); an adjustment plate (105) adapted to collection boxes (104) of different capacities is slidably connected in each slot (1001); and each adjustment plate (105) is fixedly connected to the storage box (1) via a spring.

4. The sample storage device for agricultural soil and fertilizer detection according to claim 2 is characterized in that: It also includes a pick rod (106); a pick rod (106) is fixedly connected to the lower side of each connecting rod (4) to prevent large particles of impurities from clogging the filter screen (102); each pick rod (106) is slidably connected to an adjacent pressing plate (5).

5. The sample storage device for agricultural soil and fertilizer detection according to claim 4 is characterized in that: An elastic fabric is provided between each pick rod (106) and the adjacent pressing plate (5).

6. The sample storage device for agricultural soil and fertilizer detection according to claim 4 is characterized in that: It also includes breaking rods (107); a plurality of breaking rods (107) are fixedly connected to the lower side of each pumping plate (103) to prevent the soil sample from agglomerating.

7. The sample storage device for agricultural soil and fertilizer detection according to claim 5 is characterized in that: Each pick rod (106) is made of elastic rubber material.

8. The sample storage device for agricultural soil and fertilizer detection according to claim 6 is characterized in that: A cutting edge is provided on the side of each draw plate (103) that contacts the partition plate (101).

9. The sample storage device for agricultural soil and fertilizer detection according to claim 8 is characterized in that: The surface of each draw plate (103) is coated with an anti-adhesion coating.

10. The sample storage device for agricultural soil and fertilizer detection according to claim 8, characterized in that: It also includes a baffle (201); each partition (101) is provided with a heat conduction groove (10101); a plurality of baffles (201) for improving the soil storage effect are slidably connected to the storage box (1), and each baffle (201) is fitted with an adjacent heat conduction groove (10101).

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