Device for rapidly collecting and testing plant soil nutrients

Abstract

The invention discloses a device for rapidly collecting and testing plant soil nutrients, and belongs to the technical field of soil sampling. The plant soil nutrient rapid collecting and testing device comprises a horizontally-arranged rotating plate and a vertically-arranged sampling barrel, and further comprises a supporting disc, the supporting disc is arranged between the rotating plate and the sampling barrel, the supporting disc and the ground are supported in a limited mode through a supporting piece, a driving rod is vertically arranged on the supporting disc in a penetrating and inserting mode, and the driving rod is a threaded rod. The driving rod is in threaded connection with the supporting disc, the top of the driving rod is fixedly connected with the bottom of the rotating plate, the bottom of the driving rod is detachably connected with the sampling barrel, identification scales are formed in the driving rod in the vertical direction, and when soil is not taken, the joint of the driving rod and the supporting disc is zero scale; when the soil sampling device is used, the driving rod is adjusted to be matched with the identification scales, so that the accuracy of the sampling depth during soil sampling at different positions is improved, and the accuracy of a subsequent detection result is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, and in particular to a device for quickly collecting and testing plant soil nutrients. Background Art

[0002] Soil is not only a component of the natural environment, but also the most important natural resource for agricultural production. With the rapid development of cities and industrialization, pollutants enter the soil through irrigation, atmospheric dust deposition and other pathways. Some of these pollutants are not degraded by microorganisms and are easily enriched, causing soil pollution. Moreover, some pollutants can be absorbed by plant roots and flow into the food chain with plant fruits, posing a huge hidden danger to the quality and safety of agricultural products and even endangering public health. Therefore, the detection and control of pollutants in the soil will become an important task for my country's environmental protection and agricultural production. Before detecting pollutants, soil sampling is required.

[0003] Traditionally, soil sampling is performed using a soil auger. The soil auger is drilled into the soil to be sampled by rotating a horizontally set handle. To ensure accuracy during soil sampling, different locations in the same area are usually sampled, and the depth of the soil samples taken each time is ensured to be the same. The above sampling method is suitable for soil sampling in flat areas, but for some bumpy areas, if the above sampling method is simply used for sampling, errors will occur between the depths of samples taken at different locations and the original sampling depth, which will lead to inaccurate test results in subsequent tests. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide a plant soil nutrient rapid collection and testing device to ensure that when sampling at different locations in a pothole area, the samples taken are at the same depth to ensure the accuracy of the samples taken.

[0005] The present invention provides a plant soil nutrient rapid collection and testing device, comprising a horizontally arranged rotating plate and a vertically arranged sampling barrel, and also comprising a support plate, wherein the support plate is horizontally arranged, the support plate is arranged between the rotating plate and the sampling barrel, the support plate is limitedly supported by a support member and the ground, a driving rod is vertically inserted through the support plate, the driving rod is arranged as a threaded rod, the driving rod is threadedly connected to the support plate, the top of the driving rod is fixedly connected to the bottom of the rotating plate, and the bottom is detachably connected to the sampling barrel, an identification scale is provided on the driving rod in the vertical direction, and when no soil is sampled, the connection between the driving rod and the support plate is a zero scale, and the identification scale is provided above and below the zero scale.

[0006] Preferably, the support member includes a pair of inclined support rods, the pair of support rods are respectively hinged to the lateral sides of the support plate, and the pair of support rods are hinged to a horizontally arranged support plate at one end away from the support plate, and a limiting anchor rod is provided at the bottom of the support plate.

[0007] Preferably, a sampling drill bit is provided at the bottom of the sampling barrel, the middle part of the sampling drill bit is hollow, and the outer diameter of the sampling drill bit is larger than the outer diameter of the sampling barrel, a threaded connection groove is provided at the top of the sampling drill bit, and a connecting part is provided at the bottom of the sampling barrel, the connecting part is threadedly connected to the sampling drill bit, and a pair of vertically arranged first connecting plates are fixedly connected to the top of the sampling drill bit, connecting holes are provided in the horizontal direction on the first connecting plate and the sampling barrel, and a first connecting screw is also provided, and the first connecting screw is threadedly penetrated in the connecting holes provided on the first connecting plate and the sampling barrel in sequence.

[0008] Preferably, the sampling drill bit consists of a circular support seat at the top and an annular tube at the bottom, a plurality of crushing teeth are arranged at the bottom of the annular tube, a cavity is arranged in the circular support seat, and when the sampling tube is connected to the annular support seat, the bottom is flush with the top surface of the cavity, a pair of control cylinders are horizontally arranged in the cavity, the pair of control cylinders are arranged opposite to each other, the output ends of the pair of control cylinders are fixedly connected with vertically arranged push rods, the tops of the pair of push rods are fixedly connected with horizontally arranged cutting plates, and when the pair of cutting plates are fully fitted, the sample soil in the sampling tube is completely separated from the sample soil outside.

[0009] Preferably, the limiting anchor rod is composed of a vertically arranged first anchor rod and a pair of obliquely arranged second anchor rods, the pair of second anchor rods are respectively fixedly arranged at the bottom of the support plate, the top of the first anchor rod is fixedly connected to a sliding plate, and the sliding plate is vertically slidably arranged at the bottom of the support plate.

[0010] Preferably, the support plate is provided with a bearing groove for foot bearing, a vertically arranged moving rod is vertically arranged in the bearing groove, the bottom end of the moving rod is fixedly connected to the sliding plate, and the top end is fixedly connected to the pedal, a spring is sleeved on the moving rod, one end of the spring is fixedly connected to the support plate, and the other end is fixedly connected to the pedal.

[0011] Preferably, a level is embedded on the top of the support plate.

[0012] Preferably, a rotating shaft is rotatably connected to the top of the rotating plate, a fixed plate is fixedly connected to the top of the rotating shaft, and a writing book is clamped on the fixed plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: a plant soil nutrient rapid collection and testing device of the present invention, when taking soil sampling, firstly supports the support plate to be horizontal through the support member, at this time, by adjusting the set driving rod, the sampling drill bit set at the bottom is flush with the ground to be sampled, and the set marking scale is observed, if the ground is horizontal, the 0 scale line on the marking scale is located at the support plate, if it is in a recessed position, the marking scale should be in the downward position mark at this time, similarly, if it is in a raised position, the marking scale line is in the upward position mark, and normal sampling can be performed on the flat ground during sampling, and when it is in the recessed position, the depth of the lowered sampling tube at this time is added to the reading on the marking scale to obtain the lowering depth of the sampling tube on the flat ground, and when it is in a raised position, the depth of the lowered sampling tube at this time is subtracted from the reading on the marking scale to obtain the lowering depth of the sampling tube on the flat ground, so as to ensure that the sampling depth is the same when sampling the soil at different positions in the pothole area, thereby improving the accuracy of subsequent detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 for Figure 1 Enlarged structural diagram at A in the middle.

[0016] Figure 3 It is a schematic diagram of the structure of the sampling drill bit of the present invention.

[0017] Figure 4 It is a schematic diagram of the threaded connection groove structure of the present invention.

[0018] Figure 5 It is a schematic diagram of the connecting portion structure of the present invention.

[0019] Explanation of the accompanying drawings: 1. rotating plate; 2. sampling tube; 3. supporting plate; 4. driving rod; 5. spirit level; 6. supporting member; 61. supporting rod; 62. supporting plate; 7. rotating shaft; 8. limiting anchor rod; 81. first anchor rod; 82. second anchor rod; 83. sliding plate; 84. moving rod; 9. sampling drill bit; 91. circular supporting seat; 92. annular tube; 93. crushing tooth; 10. threaded connection groove; 11. connecting part; 12. first connecting plate; 13. first connecting screw; 14. writing book; 15. cavity; 16. control cylinder; 17. push rod; 18. cut-off plate; 19. load-bearing groove; 20. pedal; 21. spring. DETAILED DESCRIPTION

[0020] The following is combined with Figures 1 to 5In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present invention belongs.

[0021] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual proportions. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0022] The present invention provides a plant soil nutrient rapid collection and testing device, comprising a horizontally arranged rotating plate 1 and a vertically arranged sampling tube 2, and also comprising a support plate 3, wherein the support plate 3 is horizontally arranged, and the support plate 3 is arranged between the rotating plate 1 and the sampling tube 2, and the support plate 3 is supported by a support member 6 and limited by the ground, and a driving rod 4 is vertically inserted through the support plate 3, and the driving rod 4 is arranged as a threaded rod, and the driving rod 4 is threadedly connected to the support plate 3, and the top of the driving rod 4 is fixedly connected to the bottom of the rotating plate 1, and the bottom is detachably connected to the sampling tube 2, and an identification scale is provided on the driving rod 4 in the vertical direction, and when no soil is taken, the connection between the driving rod 4 and the support plate 3 is a zero scale, and the identification scale is provided above and below based on the zero scale.

[0023] When taking soil samples, first support the support plate 3 to be horizontal through the support member 6. At this time, adjust the driving rod 4 to make the sampling drill bit 9 set at the bottom flush with the ground to be sampled, and observe the set marking scale. If the ground is horizontal, the 0 scale line on the marking scale is located at the support plate 3. If it is in a recessed position, the marking scale should be in the downward position. Similarly, if it is in a raised position, the marking scale line is in the upward position. Normal sampling can be carried out on the flat ground. When it is in a recessed position, the depth of the lowered sampling tube 2 is added to the reading on the marking scale to obtain the lowering depth of the sampling tube 2 on the flat ground. When it is in a raised position, the depth of the lowered sampling tube 2 is subtracted from the reading on the marking scale to obtain the lowering depth of the sampling tube 2 on the flat ground, so as to ensure that the sampling depth is the same when sampling the soil at different positions in the pothole area, thereby improving the accuracy of subsequent detection.

[0024] In this embodiment, an example is given to illustrate that if the sampling depth required is 15 cm, when sampling on flat ground, it is only necessary to observe that the marking scale on the driving rod 4 drops by 15 cm. If sampling is in a recessed position when the sampling drill bit 9 contacts the ground, at this time, because the 0 scale line is located 3 cm below the support plate 3, if the sampled soil is to be the same as the soil layer depth of the sampled soil on the flat ground, it is only necessary to drive it downward 12 cm. Similarly, if the sampling drill bit 9 contacts the ground in a raised position, at this time, because the 0 scale line is located 3 cm above the support plate 3, if the sampled soil is to be the same as the soil layer depth of the sampled soil on the flat ground, it is only necessary to drive it downward 18 cm.

[0025] Preferably, the support member 6 includes a pair of inclined support rods 61, and the pair of support rods 61 are respectively hinged to the lateral sides of the support plate 3, and the end of a pair of support rods 61 away from the support plate 3 is hinged to a horizontally set support plate 62, and a limiting anchor rod 8 is provided at the bottom of the support plate 62, and a spirit level 5 is embedded in the top of the support plate 3.

[0026] In the present invention, the support plate 3 is supported by a pair of inclined support rods 61, and the support plate 3 is ensured to be level by a level meter 5 to ensure that the sampling tube 2 is vertically inserted into the ground to be sampled. The support plate 62 is limited on the ground by the limiting anchor rod 8 set at the bottom of the support plate 62, and then the stability of the support plate 3 is ensured by a pair of support rods 61 to prevent the driving rod 4 from tilting during sampling, causing the soil sampled by the sampling tube 2 to deviate from the planned soil depth, thereby affecting the subsequent soil detection results.

[0027] Preferably, a sampling drill bit 9 is provided at the bottom of the sampling barrel 2, the middle part of the sampling drill bit 9 is hollow, and the outer diameter of the sampling drill bit 9 is larger than the outer diameter of the sampling barrel 2, a threaded connection groove 10 is provided at the top of the sampling drill bit 9, a connecting portion 11 is provided at the bottom of the sampling barrel 2, the connecting portion 11 is threadedly connected to the sampling drill bit 9, and a pair of vertically arranged first connecting plates 12 are fixedly connected to the top of the sampling drill bit 9, the first connecting plate 12 and the sampling barrel 2 are both provided with connecting holes in the horizontal direction, and a first connecting screw 13 is also provided, and the first connecting screw 13 is threadedly penetrated in the connecting holes provided in the first connecting plate 12 and the sampling barrel 2 in sequence.

[0028] In this embodiment, the sampling drill bit 9 is detachably installed at the bottom of the sampling tube 2. After a sample is sampled, the first connecting screw 13 is taken out from the first connecting plate 12 and the sampling tube 2. At this time, the connecting part 11 is taken out from the threaded connecting hole, and the sampling tube 2 is separated from the sampling drill bit 9. It is convenient to use. If multiple samplings are required, the sampling drill bit 9 and the sampling tube 2 are set to be detachable to facilitate rapid sampling of soil at different positions.

[0029] Preferably, the sampling drill bit 9 is composed of a circular support seat 91 at the top and an annular tube 92 at the bottom, a plurality of crushing teeth 93 are arranged at the bottom of the annular tube 92, a cavity 15 is arranged in the circular support seat 91, and when the sampling tube 2 is connected to the annular support seat, the bottom is flush with the top surface of the cavity 15, a pair of control cylinders 16 are horizontally arranged in the cavity 15, the pair of control cylinders 16 are arranged opposite to each other, the output ends of the pair of control cylinders 16 are fixedly connected with vertically arranged push rods 17, the tops of the pair of push rods 17 are fixedly connected with horizontally arranged cut-off plates 18, and when the pair of cut-off plates 18 are fully fitted, the sample soil in the sampling tube 2 is completely separated from the external sample soil.

[0030] The sampling drill bit 9 in the present invention is composed of a circular support seat 91 and an annular tube 92 at the bottom. The soil is crushed by the crushing teeth 93 arranged at the bottom of the annular tube 92. When soil sampling is performed, the soil sample will enter the sampling tube 2 through the bottom of the sampling tube 2. After the sampling is completed, when the sampling tube 2 is lifted, the sample soil is in close contact with the bottom soil. When the sampling tube 2 is moved upward, the sample soil therein is displaced, which will cause a deviation between the actual depth of the sample soil and the final depth. In this embodiment, after the sampling is completed, the push rod 17 is pushed by the control cylinder 16, and the sample soil in the sampling tube 2 is cut off and supported by a pair of cut-off plates 18 arranged on the push rod 17, so as to prevent the sample soil in the sampling tube 2 from being displaced when the sampling tube 2 is moved upward.

[0031] Preferably, the limiting anchor rod 8 is composed of a vertically arranged first anchor rod 81 and a pair of obliquely arranged second anchor rods 82, the pair of second anchor rods 82 are respectively fixedly arranged at the bottom of the support plate 62, the top of the first anchor rod 81 is fixedly connected with a sliding plate 83, the sliding plate 83 is vertically slidably arranged at the bottom of the support plate 62, the support plate 62 is provided with a bearing groove 19 for foot bearing, a vertically arranged moving rod 84 is vertically arranged in the bearing groove 19, the bottom end of the moving rod 84 is fixedly connected to the sliding plate 83, and the top end is fixedly connected to the pedal 20, the moving rod 84 is sleeved with a spring 21, one end of the spring 21 is fixedly connected to the support plate 62, and the other end is fixedly connected to the pedal 20.

[0032] In this embodiment, the limiting anchor rod 8 is composed of a vertically arranged first anchor rod 81 and a pair of obliquely arranged second anchor rods 82. Initially, the support plate 62 is temporarily limited by the pair of second anchor rods 82. When sampling soil, the sampler places the sole of the foot on the pedal 20 and steps on the pedal 20. At this time, the downward pressure of the pedal 20 will move the sliding plate 83 downward through the moving rod 84 and insert the first anchor rod 81 into the ground, further improving the stability of the support plate 3 during sampling. In addition, during sampling, the weight of the sampler acts on the support plate 62 to further improve the stability of the support plate 62, thereby preventing the driving rod 4 from tilting during sampling, resulting in deviation in the depth of the sampled soil.

[0033] Preferably, a rotating shaft 7 is rotatably connected to the top of the rotating plate 1, and a fixed plate is fixedly connected to the top of the rotating shaft 7, and a writing book 14 is clamped on the fixed plate.

[0034] In this embodiment, a rotating shaft 7 is set on the top of the rotating plate 1. Considering that sampling is required more frequently, in order to better identify the sample soil at different positions, the position information is written on the writing book 14, and when the sample soil is taken out of the sampling tube 2 and transferred to the temporary storage container, it is attached to the temporary storage container to facilitate subsequent testing of the sample soil.

[0035] The method of using the plant soil nutrient rapid collection and testing device of the present invention is as follows:

[0036] Insert the second anchor rod 82 into the ground to preliminarily fix the support plate 62, and observe the level meter 5 to make the support plate 3 in a horizontal position, and make the sampling drill bit 9 set at the bottom flush with the ground to be sampled. The sampler places the sole of the foot on the pedal 20 and steps on the pedal 20. At this time, the downward pressure of the pedal 20 will move the sliding plate 83 downward through the moving rod 84 and insert the first anchor rod 81 into the ground, further improving the stability of the support plate 3 during sampling. In addition, the weight of the sampler during sampling acts on the support plate 62, further improving the stability of the support plate 62, preventing the driving rod 4 from tilting during sampling, resulting in deviation in the depth of the sampled soil.

[0037] At this time, the rotating plate 1 is rotated to move the driving rod 4 downward, and the sampling tube 2 is driven downward by the driving rod 4, and the soil is broken by the sampling drill bit 9 arranged at the bottom, and the sample soil is sampled into the sampling tube 2. When the sampling is completed and the sampling tube 2 needs to be lifted, the control cylinder 16 pushes the set push rod 17, and the sample soil in the sampling tube 2 is cut off and supported by a pair of cutting plates 18 arranged on the push rod 17.

[0038] After the sampling tube 2 and the sampling drill bit 9 are separated from the ground, the first connecting screw 13 is taken out from the first connecting plate 12 and the sampling tube 2. At this time, the connecting part 11 is taken out from the threaded connecting hole, and the sampling tube 2 is separated from the sampling drill bit 9. After the sample soil in the sampling tube 2 is transferred to a temporary storage container, the information on the writing book 14 is applied to the temporary storage container for the next sampling. Repeat the above steps to complete multiple sampling of the same area.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plant soil nutrient rapid collection and testing device, comprising a horizontally arranged rotating plate (1) and a vertically arranged sampling tube (2), characterized in that: Also includes: A support plate (3) is arranged horizontally, the support plate (3) is arranged between the rotating plate (1) and the sampling tube (2), and the support plate (3) is supported by the ground through a support member (6); A driving rod (4) is vertically inserted through the supporting plate (3), the driving rod (4) is configured as a threaded rod, the driving rod (4) is threadedly connected to the supporting plate (3), the top of the driving rod (4) is fixedly connected to the bottom of the rotating plate (1), and the bottom is detachably connected to the sampling tube (2); The driving rod (4) is provided with marking scales in the vertical direction, and when soil is not being taken, the connection between the driving rod (4) and the supporting plate (3) is at zero scale, and the marking scales are provided above and below the zero scale.

2. A plant soil nutrient rapid collection and testing device as claimed in claim 1, characterized in that: The support member (6) comprises a pair of inclined support rods (61), the pair of support rods (61) being hinged to two lateral sides of the support plate (3) respectively, and the pair of support rods (61) being hinged to a horizontally arranged support plate (62) at one end away from the support plate (3), and a limiting anchor rod (8) being arranged at the bottom of the support plate (62).

3. A plant soil nutrient rapid collection and testing device as claimed in claim 1, characterized in that: A sampling drill bit (9) is provided at the bottom of the sampling barrel (2). The sampling drill bit (9) is hollow in the middle and has an outer diameter greater than the outer diameter of the sampling barrel (2). A threaded connection groove (10) is provided at the top of the sampling drill bit (9). A connecting portion (11) is provided at the bottom of the sampling barrel (2). The connecting portion (11) is threadedly connected to the sampling drill bit (9). A pair of vertically arranged first connecting plates (12) are fixedly connected to the top of the sampling drill bit (9). The first connecting plate (12) and the sampling barrel (2) are both provided with connecting holes in the horizontal direction. A first connecting screw (13) is also provided. The first connecting screw (13) is threadedly penetrated in the connecting holes provided on the first connecting plate (12) and the sampling barrel (2).

4. A plant soil nutrient rapid collection and testing device as claimed in claim 3, characterized in that: The sampling drill bit (9) is composed of a circular support seat (91) at the top and an annular tube (92) at the bottom. The bottom of the annular tube (92) is provided with a plurality of crushing teeth (93). A cavity (15) is provided in the circular support seat (91). When the sampling tube (2) is connected to the circular support seat (91), the bottom is flush with the top surface of the cavity (15). A pair of control cylinders (16) are horizontally arranged in the cavity (15). The pair of control cylinders (16) are arranged opposite to each other. The output ends of the pair of control cylinders (16) are fixedly connected with vertically arranged push rods (17). The tops of the pair of push rods (17) are fixedly connected with horizontally arranged cut-off plates (18). When the pair of cut-off plates (18) are fully fitted, the sample soil in the sampling tube (2) is completely separated from the sample soil outside.

5. A plant soil nutrient rapid collection and testing device as claimed in claim 2, characterized in that: The limiting anchor rod (8) is composed of a vertically arranged first anchor rod (81) and a pair of obliquely arranged second anchor rods (82), wherein the pair of second anchor rods (82) are respectively fixedly arranged at the bottom of the support plate (62), and a sliding plate (83) is fixedly connected to the top of the first anchor rod (81), and the sliding plate (83) is vertically slidably arranged at the bottom of the support plate (62).

6. A plant soil nutrient rapid collection and testing device as claimed in claim 5, characterized in that: The support plate (62) is provided with a bearing groove (19) for bearing the foot, and a vertically arranged moving rod (84) is vertically arranged in the bearing groove (19). The bottom end of the moving rod (84) is fixedly connected to the sliding plate (83), and the top end is fixedly connected to the pedal (20). A spring (21) is sleeved on the moving rod (84), and one end of the spring (21) is fixedly connected to the support plate (62), and the other end is fixedly connected to the pedal (20).

7. A plant soil nutrient rapid collection and testing device as claimed in claim 1, characterized in that: A level (5) is embedded on the top of the support plate (3).

8. A plant soil nutrient rapid collection and testing device as claimed in claim 1, characterized in that: The top of the rotating plate (1) is rotatably connected to a rotating shaft (7), and the top of the rotating shaft (7) is fixedly connected to a fixed plate, on which a writing book (14) is clamped.

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