A sampling device and method for detecting soil properties of a wheat planting site

Abstract

The application provides a sampling device and method for detecting soil properties of a wheat planting site, and belongs to the technical field of soil collection and detection. The device comprises a sampling main body provided with a placing cavity at the upper end and a sampling installation cavity at the bottom end, a collection installation disc arranged in the sampling installation cavity, and a sampling head connected with the collection installation disc. The collection installation disc and the sampling head of the sampling device are detachable structures and can be detached and stored for convenient carrying. A corresponding number of collection installation discs are installed around the collection point, and a plurality of sampling heads can be installed on each collection installation disc. The soil at the same position can be collected at multiple points, and the soil at multiple positions can be collected simultaneously. Through the above batch collection method, the number of soil samples is greatly increased, the collected soil data is more representative, and the accuracy of the collected soil data is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of soil collection and detection, and specifically relates to a sampling device for detecting soil properties of a wheat planting site and a sampling method. BACKGROUND

[0002] Wheat is a general term for plants of the genus Triticum, and the representative species is common wheat, which is a kind of gramineous plant and a kind of cereal crop widely planted all over the world. The caryopsis of wheat is one of the staple foods of mankind, and after being ground into flour, it can be used to make bread, steamed buns, biscuits, noodles and other foods. In order to plant safe wheat, it is necessary to collect and detect the soil of the planting site when the wheat is planted.

[0003] The existing soil sampling device is of an integral structure, has a large volume and is difficult to carry, is difficult to disassemble and assemble, and is very inconvenient to use. Meanwhile, when sampling, the soil is easy to splash out, resulting in low sampling efficiency. After collecting at one point, it is necessary to move and then collect at another point, which is inconvenient to operate. SUMMARY

[0004] In view of the above problems, the application provides a sampling device for detecting soil properties of a wheat planting site and a sampling method.

[0005] The technical scheme of the application is as follows: a sampling device for detecting soil properties of a wheat planting site, comprising a sampling main body provided with a placing cavity at an upper end and a sampling installation cavity at a bottom end and communicating with the outside, a collection installation disc arranged in the sampling installation cavity, and a sampling head connected with the collection installation disc.

[0006] A plurality of installation vertical grooves are arranged at the bottom end of the sampling main body and at the periphery of the sampling installation cavity, and an installation horizontal plate is arranged in each installation vertical groove. A micro motor is installed at the upper end of the installation horizontal plate. The output shaft of the micro motor is connected with a downwardly opened buckle cover. A first electromagnet is arranged on the inner wall of the buckle cover. A plurality of annular limiting grooves corresponding to the collection installation discs are arranged on the inner wall of the sampling installation cavity. A plurality of limiting receiving blocks are arranged in the annular limiting grooves. Each limiting receiving block is connected with the inner wall of the annular limiting groove through an elastic extension rod.

[0007] There are a plurality of collection installation discs, and the plurality of collection installation discs correspond to the annular limiting grooves one by one. The upper end of each collection installation disc is placed on the upper end of each limiting receiving block in the corresponding annular limiting groove. The collection installation disc comprises a main disc body, an annular disc body arranged at the periphery of the main disc body, and a plurality of sliding installation blocks arranged between the main disc body and the annular disc body. The inner wall of the annular disc body and the outer wall of the main disc body are both provided with annular sliding grooves. The sliding installation blocks are slidably connected with the corresponding annular sliding grooves at both sides. A first installation port is arranged at the center of the main disc body. A second installation port is arranged at the center of each sliding installation block.

[0008] The first installation port is internally provided with a linkage rod, the upper end of the linkage rod is provided with a metal ring, and the outer wall of the linkage rod is provided with a rotating connecting frame connected with each sliding installation block.

[0009] Further, the elastic telescopic rod can be an electric telescopic rod.

[0010] Further, the placing cavity is internally provided with a plurality of placing fixing frames for fixing the sampling head, the placing fixing frame comprises an installation bottom plate connected with the bottom end of the placing cavity, a plurality of first fixed clamping plates internally provided with electric telescopic rods and arranged on the upper end of the installation bottom plate, two sliding adjustment plates arranged in the first fixed clamping plate and connected with the two sides of the electric telescopic rod, and sliding connecting rods arranged on the left and right sides of the first fixed clamping plate, one end of the sliding connecting rod penetrates through the side wall of the first fixed clamping plate and is connected with the corresponding sliding adjustment plate, and the other end is connected with a movable clamping plate.

[0011] Description: when the sampling head needs to be taken out, the electric telescopic rod is started, the extension of the electric telescopic rod makes the two sliding adjustment plates and the two sliding connecting rods move away from each other respectively, at the same time, the two sliding adjustment plates also move away from each other, so that the sampling head is separated from the sliding adjustment plate, then the sampling head can be taken out, the sampling head is clamped and fixed by the placing fixing frame, so that the sampling head can be avoided from being damaged by colliding with the inner wall of the placing cavity during movement, and the service life of the sampling head is prolonged.

[0012] Further, the sampling main body is provided with a first pull handle on the side wall, the placing cavity is provided with a cover plate on the upper end, the placing fixing frame is provided with a second pull handle at the center, and a second fixed clamping plate is arranged at each edge of the installation bottom plate in the placing cavity.

[0013] Description: by arranging the first pull handle, the sampling main body is convenient to move, the placing cavity is shielded by the cover plate, so that the sampling head and the placing fixing frame are prevented from being damaged by the external environment, the service life of the device is prolonged, the cleaning frequency of the placing cavity is reduced, and the working intensity of the workers is reduced.

[0014] Further, the bottom end of the sliding installation block and the surrounding of the second installation port are provided with an embedded groove, the embedded groove is connected with a reinforcing support plate through a second micro hydraulic cylinder, and adjacent two sliding installation blocks are connected through a reinforcing connecting rod.

[0015] When the sampling head is in use, the second micro hydraulic cylinder is started to drive the corresponding reinforced support plate into contact with the ground, thereby supporting the surrounding of the sampling head, which can increase the sampling stability of the sampling head, reduce the sampling difficulty, improve the sampling efficiency, and increase the connection strength between the sliding mounting blocks and improve the mechanical properties of the sliding mounting blocks.

[0016] Further, a second electromagnet is arranged at the upper end of the sliding mounting block and at the periphery of the second mounting port. The driving assembly comprises a micro forward-reverse motor, a T-shaped connecting plate connected between the vertical section and the second mounting port, a metal sheet arranged at the bottom end of the horizontal section of the T-shaped connecting plate, and a rotating connecting shaft connected with the output shaft of the micro forward-reverse motor through a shaft coupling and penetrating through the vertical section of the T-shaped connecting plate and extending to the outside of the second mounting port.

[0017] When the driving assembly is in use, the micro forward-reverse motor is started to drive the T-shaped connecting plate and the rotating connecting shaft to synchronously rotate and reverse, thereby lifting the sampling head to complete the collection of soil samples. In the above process, the T-shaped connecting plate and the sliding mounting block are connected through the magnetic attraction between the second electromagnet and the metal sheet, so that the driving assembly is a detachable structure, and the occupied space of the sampling device as a whole is reduced.

[0018] Further, a plurality of sliding adjustment grooves are arranged on the side wall of the sampling main body, and a reverse L-shaped connecting rod is connected with each sliding adjustment groove through a third micro hydraulic cylinder, and a sliding wheel is arranged at the bottom end of the reverse L-shaped connecting rod.

[0019] When the sampling device needs to be moved, the third micro hydraulic cylinder is started to make the reverse L-shaped connecting rod and the sliding wheel synchronously descend until the sliding wheel contacts the ground. When the soil sample needs to be collected, the third micro hydraulic cylinder is compressed to make the reverse L-shaped connecting rod and the sliding wheel synchronously ascend until the sliding wheel is separated from the ground, thereby increasing the convenience of moving the sampling device as a whole.

[0020] Further, the sampling head comprises a collection head main body connected with the rotating connecting shaft at the upper end, an arc-shaped material blocking buckle arranged at the upper end of the collection head main body, and a collection drill bit arranged at the bottom end of the collection head main body. A plurality of collection ports are uniformly arranged on the side wall of the collection head main body, and an arc-shaped soil turning plate is arranged at each collection port. A butt sealing plate is movably connected with the bottom end of the collection drill bit, and the collection drill bit is connected with the bottom end of the butt sealing plate.

[0021] Illustration: when the soil sample is collected by the sampling head, the driving assembly drives the sampling head main body to rotate and move downward, when the sampling head main body contacts the ground, the sampling drill bit drills the sampling point in the process of continuous downward movement, meanwhile, the arc-shaped soil rotating plate shovels the soil to the sampling opening and into the sampling head main body in the process of rotation, in the process of collection, the arc-shaped material blocking baffle blocks the splashing soil and makes the soil fall on the arc-shaped soil rotating plate, thereby improving the collection efficiency and avoiding the damage to the surrounding workers caused by the splashing soil, and the safety performance is good.

[0022] Further, the T-shaped push rod is connected with the abutting blocking plate at the bottom end of the vertical section, the horizontal section of the T-shaped push rod is in sliding connection with the inner wall of the sampling head main body, and the outer wall of the T-shaped push rod is provided with a spring sleeve.

[0023] Illustration: when the soil sample in the sampling head main body needs to be removed, the worker only needs to pull the abutting blocking plate away from the sampling head main body, at this time, the spring sleeve is compressed, and the soil falls from the gap between the abutting blocking plate and the sampling head main body, finally, the abutting blocking plate is released, and the abutting blocking plate is in abutment with the bottom end of the sampling head main body again under the elastic force of the spring sleeve, the above process has the advantages of simple structure, convenient operation and greatly reduced material falling difficulty.

[0024] The application further discloses a soil sampling method for detecting soil properties of a wheat planting area, and the method is based on the sampling device for detecting soil properties of a wheat planting area and comprises the following steps.

[0025] S1, move the sampling main body to a soil sampling point, and a worker takes out each sampling installation disc from the sampling installation cavity from top to bottom, and the specific taking-out process is as follows: first, press the limit receiving blocks at the lower end of the sampling installation cavity and relatively distributed into the annular limit groove at the same time, take out the sampling installation disc at the lower end, then press all the limit receiving blocks at the lower end of the second last sampling installation disc at the same time by using an external plate-shaped device, and take out the sampling installation disc, and the above steps are repeated to take out all the sampling installation discs.

[0026] S2, the linkage rod at the upper end of each sampling installation disc is inserted into the buckle cover in the installation vertical groove in a one-to-one manner, and at the same time, the first electromagnet is electrified, the metal ring at the upper end of the linkage rod is adsorbed by the electromagnetic attraction of the first electromagnet, the fixed installation of each sampling installation disc is completed, the sampling head placed in the placement cavity is taken out after the sampling installation disc is installed, and the sampling head is connected with the corresponding driving assembly to complete the installation of the sampling head.

[0027] S3, when sampling, start the driving assembly, drive the sampling head to move down by the driving assembly, when the sampling head contacts with the ground, drill and sample the soil by the sampling head, when sampling is finished, drive the sampling head to move up by the driving assembly, take out the sampling head, when the collection points of the same sampling head need to be replaced, power off the first electromagnet, separate the linkage rod from the buckling cover, then rotate the collection mounting disc.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] The collection mounting disc and the sampling head of the sampling equipment are detachable structures, which can be respectively detached after use and then placed in the inside of the placement cavity and the sampling installation cavity for storage, so that the equipment can be conveniently carried and the soil for wheat planting in different places can be conveniently collected.

[0030] When the sampling head is used, the arc-shaped material blocking buckling plate blocks the splashing soil and makes the soil fall on the arc-shaped soil rotating plate, which improves the collection efficiency and avoids injury to surrounding workers caused by splashing soil, has good safety performance, and at the same time, the arc-shaped soil rotating plate can shovel the soil to the collection port when rotating and make the soil enter the inside of the sampling head main body through the collection port, which facilitates the falling of the soil sample, the surrounding of the sampling head is supported by the reinforcing support plate, which can increase the sampling stability of the sampling head, reduce the sampling difficulty and improve the sampling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the overall structure schematic diagram of the collection mounting disc and the sampling head when they are not installed;

[0032] Figure 2 is the installation structure schematic diagram of the placement fixing frame in the placement cavity;

[0033] Figure 3 is the top view of the placement cavity;

[0034] Figure 4 is the overall structure schematic diagram of the collection mounting disc and the sampling head when they are installed;

[0035] Figure 5 is the top view of the collection mounting disc;

[0036] Figure 6 is a sectional view of the sampling installation disc of the present application;

[0037] Figure 7 is a schematic diagram of the overall structure of the sampling head when the abutting plugging plate is connected with the sampling head body of the present application;

[0038] Figure 8 is a schematic diagram of the overall structure of the sampling head when the abutting plugging plate is separated from the sampling head body of the present application.

[0039] Among them, 1-sampling main body, 10-placing cavity, 100-cover plate, 101-second fixed clamping plate, 102-first micro hydraulic cylinder, 11-sampling installation cavity, 110-annular limiting groove, 111-limiting bearing block, 112-elastic telescopic rod, 12-installation vertical groove, 120-installation horizontal plate, 121-micro motor, 122-buckling cover, 123-first electromagnet, 13-placing fixing frame, 130-installation bottom plate, 131-electric telescopic rod, 132-first fixed clamping plate, 133-sliding adjustment plate, 134-sliding connecting rod, 135-movable clamping plate, 136-second pull handle, 14-first pull handle, 15-sliding adjustment groove, 150-third micro hydraulic cylinder, 151-inverted L-shaped connecting rod, 152-sliding wheel, 2-sampling installation disc, 20-main disc body, 200-first installation port, 201-linkage rod, 202-metal ring, 203-rotary connecting frame, 21-annular disc body, 22-sliding installation block, 220-second installation port, 221-embedded groove, 222-second micro hydraulic cylinder, 223-reinforcing support plate, 224-reinforcing connecting rod, 225-second electromagnet, 23-annular sliding groove, 24-driving assembly, 240-micro reversible motor, 241-T-shaped connecting plate, 242-metal sheet, 243-rotary connecting shaft, 3-sampling head, 30-sampling head body, 300-sampling port, 301-arc-shaped soil turning plate, 302-T-shaped pushing rod, 303-spring sleeve, 31-arc-shaped material blocking buckle, 32-sampling drill bit, 320-abutting plugging plate. DETAILED DESCRIPTION

[0040] In order to further understand the content of the present application, the present application is described in detail through the following examples.

[0041] Example 1:

[0042] As shown in Figure 1 , 4 , a sampling device for detecting soil properties of a wheat planting area, comprising a sampling main body 1 provided with a placing cavity 10 at the upper end and a sampling installation cavity 11 penetrating to the outside at the bottom end, a sampling installation disc 2 arranged in the sampling installation cavity 11, and a sampling head 3 connected with the sampling installation disc 2.

[0043] The bottom end of the sampling main body 1 and at the outer periphery of the sampling installation cavity 11 are provided with three installation vertical grooves 12, and each installation vertical groove 12 is provided with an installation horizontal plate 120, and the upper end of the installation horizontal plate 120 is provided with a micro motor 121, the output shaft of the micro motor 121 is connected with a downward opening buckle cover 122, the inner wall of the buckle cover 122 is provided with a first electromagnet 123, the inner wall of the sampling installation cavity 11 is provided with three annular limiting grooves 110 corresponding to the collection installation disc 2, and the annular limiting groove 110 is provided with six limiting receiving blocks 111, and each limiting receiving block 111 is connected with the inner wall of the annular limiting groove 110 through an elastic expansion rod 112;

[0044] As shown in Figure 5 、 6 , the collection installation disc 2 has three, three collection installation discs 2 correspond to the annular limiting groove 110, and the upper end of each collection installation disc 2 is placed on the corresponding limiting receiving block 111 in the annular limiting groove 110, the collection installation disc 2 includes a main disc body 20, an annular disc body 21 located at the outer periphery of the main disc body 20, four sliding installation blocks 22 provided between the main disc body 20 and the annular disc body 21, the inner wall of the annular disc body 21 and the outer wall of the main disc body 20 are provided with annular sliding grooves 23, the two sides of the sliding installation block 22 are respectively connected with the corresponding annular sliding groove 23, the center of the main disc body 20 is provided with a first installation port 200, and the center of each sliding installation block 22 is provided with a second installation port 220;

[0045] The first installation port 200 is provided with a linkage rod 201, the upper end of the linkage rod 201 is provided with a metal ring 202, and the outer wall of the linkage rod 201 is provided with a rotating connection frame 203 connected with each sliding installation block 22, the second installation port 220 is provided with a driving assembly 24, the bottom end of the driving assembly 24 is detachably connected with the sampling head 3, and the placing cavity 10 is used for placing the sampling head 3;

[0046] The upper end of the sliding installation block 22 and at the outer periphery of the second installation port 220 is provided with a second electromagnet 225, the driving assembly 24 includes a micro forward and reverse motor 240, a T-shaped connecting plate 241 connected with the vertical section of the second installation port 220, a metal sheet 242 provided at the bottom end of the horizontal section of the T-shaped connecting plate 241, a rotating connecting shaft 243 connected with the output shaft of the micro forward and reverse motor 240 through a shaft coupling and penetrating through the vertical section of the T-shaped connecting plate 241 and extending to the outside of the second installation port 220;

[0047] Among them, the micro motor 121, the first electromagnet 123, the driving assembly 24, the second electromagnet 225, the micro forward and reverse motor 240 and the sampling head 3 all adopt the prior art. Example 2:

[0048] The embodiment discloses a soil sampling method for wheat planting land soil property detection, and is based on the sampling equipment for wheat planting land soil property detection in embodiment 1, and comprises the following steps:

[0049] S1, move the sampling main body 1 to the soil collection point, and the staff takes out each collection installation disc 2 from the sampling installation cavity 11 from top to bottom, and the specific taking-out process is as follows: first, press the limit receiving blocks 111 at the lower end of the sampling installation cavity 11 and relatively distributed into the annular limit groove 110 at the same time, take out the collection installation disc 2 at the lower end, then press all the limit receiving blocks 111 at the lower end of the second last collection installation disc 2 at the same time by using the external plate-shaped equipment, and take out the collection installation disc 2, and the above steps are repeated to take out all the collection installation discs 2;

[0050] S2, the linkage rod 201 at the upper end of each collection installation disc 2 is inserted into the buckle cover 122 in the installation vertical groove 12 one by one, at the same time, the first electromagnet 123 is electrified, the metal ring 202 at the upper end of the linkage rod 201 is adsorbed by the electromagnetic attraction of the first electromagnet 123, the fixed installation of each collection installation disc 2 is completed, after the installation of the collection installation disc 2, the sampling head 3 placed in the placement cavity 10 is taken out and connected with the corresponding driving assembly 24 to complete the installation of the sampling head 3;

[0051] S3, when sampling, start the micro positive and negative rotation motor 240, drive the sampling head 3 to move downward through the micro positive and negative rotation motor 240, when the sampling head 3 contacts with the ground, the soil is drilled and sampled by the sampling head 3, when the sampling is completed, the sampling head 3 is taken out by driving the sampling head 3 to move upward through the micro positive and negative rotation motor 240, when it is necessary to replace each collection point of the same sampling head 3, the first electromagnet 123 is de-energized, the linkage rod 201 is separated from the buckle cover 122, and then the collection installation disc 2 is rotated. Embodiment 3

[0052] The difference between the embodiment and embodiment 1 is that:

[0053] As shown in Figure 2 , 3 , the placement cavity 10 is provided with a plurality of placement fixing frames 13 for fixing the sampling head 3, the placement fixing frame 13 comprises an installation bottom plate 130 connected with the bottom end of the placement cavity 10, four first fixed clamping plates 132 provided at the upper end of the installation bottom plate 130 and internally provided with electric telescopic rods 131, two sliding adjustment plates 133 provided in the first fixed clamping plate 132 and connected with the two sides of the electric telescopic rod 131, sliding connection rods 134 provided on the left and right sides of the first fixed clamping plate 132, one end of the sliding connection rod 134 penetrates through the side wall of the first fixed clamping plate 132 and is connected with the corresponding sliding adjustment plate 133, and the other end is connected with a movable clamping plate 135.

[0054] The sampling body 1 has a first lifting handle 14 on its side wall, a cover plate 100 on the upper end of the placement cavity 10, a second lifting handle 136 at the center of the placement fixing frame 13, and a second fixing clamping plate 101 on each side of the placement cavity 10 and corresponding to the mounting base plate 130. The second fixing clamping plate 101 is connected to the inner wall of the placement cavity 10 through a first micro hydraulic cylinder 102.

[0055] Among them, the electric telescopic pole 131 adopts existing technology. Example 4:

[0056] The difference between this embodiment and Embodiment 2 is that:

[0057] When the sampling head 3 needs to be removed, activate the electric telescopic rod 131. Through the extension of the electric telescopic rod 131, the two sliding adjustment plates 133 and the two sliding connecting rods 134 move away from each other. At the same time, the two sliding adjustment plates 133 also move away from each other, so that the sampling head 3 is separated from the sliding adjustment plates 133. Then, the sampling head 3 can be removed. Example 5:

[0058] The difference between this embodiment and embodiment 3 is that:

[0059] like Figure 5 , 6 As shown, the bottom of the sliding mounting block 22 is provided with a built-in groove 221 located around the second mounting port 220. A reinforcing support plate 223 is connected to the built-in groove 221 through a second micro hydraulic cylinder 222. Two adjacent sliding mounting blocks 22 are connected by a reinforcing connecting rod 224. Example 6:

[0060] The difference between this embodiment and embodiment 4 is that:

[0061] When the sampling head 3 is in use, the second micro hydraulic cylinder 222 is activated, which drives the corresponding reinforcing support plate 223 to contact the ground for sampling, thereby providing support around the sampling head 3. Example 7:

[0062] The difference between this embodiment and embodiment 5 is that:

[0063] like Figure 1 , 4 As shown, the side wall of the sampling body 1 is provided with two sliding adjustment grooves 15, and each sliding adjustment groove 15 is connected to an inverted L-shaped connecting rod 151 through a third micro hydraulic cylinder 150. The bottom end of the inverted L-shaped connecting rod 151 is provided with a sliding wheel 152. The third micro hydraulic cylinder 150 adopts the existing technology. Example 8:

[0064] The difference between this embodiment and embodiment 6 is that:

[0065] When it is necessary to move the sampling device, the third micro hydraulic cylinder 150 is started, and through the extension of the third micro hydraulic cylinder 150, the inverted L-shaped connecting rod 151 and the sliding wheel 152 are synchronously lowered until the sliding wheel 152 is in contact with the ground. When it is necessary to collect soil samples, through the compression of the third micro hydraulic cylinder 150, the inverted L-shaped connecting rod 151 and the sliding wheel 152 are synchronously raised until the sliding wheel 152 is separated from the ground. Embodiment 9:

[0066] The difference between this embodiment and embodiment 7 is that:

[0067] As shown in Figure 7 , 8 , the sampling head 3 comprises a collection head body 30 connected with the rotating connecting shaft 243 at the upper end, an arc-shaped material blocking flashboard 31 arranged at the upper end of the collection head body 30, and a collection drill bit 32 arranged at the bottom end of the collection head body 30. The side wall of the collection head body 30 is uniformly provided with 12 collection ports 300, and each collection port 300 is provided with an arc-shaped soil turning plate 301. The bottom end of the collection drill bit 32 is movably connected with an abutting blocking plate 320, and the collection drill bit 32 is connected with the bottom end of the abutting blocking plate 320.

[0068] The collection head body 30 is provided with a T-shaped pushing rod 302 connected with the abutting blocking plate 320 at the bottom end of the vertical section. The horizontal section of the T-shaped pushing rod 302 is slidably connected with the inner wall of the collection head body 30, and the outer wall of the T-shaped pushing rod 302 is provided with a spring sleeve 303.

[0069] Embodiment 10:

[0070] The difference between this embodiment and embodiment 8 is that:

[0071] When the soil sample is collected by the sampling head 3, the driving assembly 24 drives the collection head body 30 to rotate and move downward. When the collection head body 30 contacts the ground, the collection drill bit 32 drills a hole at the sampling point in the process of continuously moving downward. At the same time, the arc-shaped soil turning plate 301 turns the soil to the collection port 300 and then into the collection head body 30. In the process of collection, the arc-shaped material blocking flashboard 31 blocks the splashing soil and makes the soil fall on the arc-shaped soil turning plate 301.

[0072] When it is needed to move the soil sample in the collection head body 30 out, the worker only needs to pull the abutting blocking plate 320 away from the side of the collection head body 30, at this time, the spring sleeve 303 is compressed, the soil falls down from the gap between the abutting blocking plate 320 and the collection head body 30, finally, the abutting blocking plate 320 is abutted with the bottom end of the collection head body 30 again under the elastic force of the spring sleeve 303.

Claims

1. A sampling device for detecting soil properties of a wheat planting field, characterized by, The utility model provides a sampling device, including the sampling main part (1) who sets up the cavity (10) with the sampling installation cavity (11) of bottom end with outside through of upper end, the collection installation disc (2) that sets up in sampling installation cavity (11), with the sampling head (3) that is connected with collection installation disc (2); The sampling main part (1) bottom end and located the sampling installation cavity (11) periphery is equipped with a plurality of installation vertical groove (12), and each installation vertical groove (12) is equipped with installation horizontal plate (120) in, and the output shaft of micro motor (121) is connected with the opening downward buckle cover (122), the inner wall of buckle cover (122) is equipped with first electromagnet (123), and the inner wall of sampling installation cavity (11) is equipped with a plurality of annular limit slot (110) with collection installation disc (2) one to one correspondence, and the annular limit slot (110) is equipped with a plurality of limit receiving block (111) in, and each limit receiving block (111) is connected with the inner wall of annular limit slot (110) through elastic telescopic link (112); The collection installation disc (2) has a plurality of, and a plurality of collection installation discs (2) are one to one correspondence with annular limit slot (110), and each collection installation disc (2) is placed on the upper end of each limit receiving block (111) in the corresponding annular limit slot (110), and collection installation disc (2) includes main disc body (20), annular disc body (21) located the periphery of main disc body (20), a plurality of sliding installation blocks (22) are equipped between main disc body (20) and annular disc body (21), the inner wall of annular disc body (21) and the outer wall of main disc body (20) are all equipped with annular sliding slot (23), the both sides of sliding installation block (22) are slidably connected with the corresponding annular sliding slot (23) respectively, and the center of main disc body (20) is equipped with first installation port (200), and the center of each sliding installation block (22) is equipped with second installation port (220); The inner wall of first installation port (200) is equipped with linkage rod (201), the upper end of linkage rod (201) is equipped with metal ring (202), and the outer wall of linkage rod (201) is equipped with rotating connecting frame (203) connected with each sliding installation block (22), and the inner wall of second installation port (220) is equipped with drive assembly (24), the bottom of drive assembly (24) is detachably connected with sampling head (3), and the cavity (10) is used for placing sampling head (3).

2. The sampling device for detecting soil properties of a wheat planting field according to claim 1, wherein The placing cavity (10) is internally provided with a plurality of placing fixing frames (13) for fixing the sampling head (3), the placing fixing frame (13) comprises a mounting bottom plate (130) connected with the bottom end of the placing cavity (10), a plurality of first fixed clamping plates (132) provided on the upper end of the mounting bottom plate (130) and internally provided with electric telescopic rods (131), two sliding adjustment plates (133) provided in the first fixed clamping plate (132) and connected with the two sides of the electric telescopic rod (131), and sliding connecting rods (134) provided on the left and right sides of the first fixed clamping plate (132), one end of the sliding connecting rod (134) penetrates through the side wall of the first fixed clamping plate (132) and is connected with the corresponding sliding adjustment plate (133), and the other end is connected with a movable clamping plate (135).

3. The sampling device for detecting soil properties of a wheat planting field according to claim 2, characterized by, The sampling main body (1) is provided with a first pull handle (14) on the side wall, the placing cavity (10) is provided with a cover plate (100) on the upper end, the placing fixing frame (13) is provided with a second pull handle (136) at the center, and the placing cavity (10) is provided with a second fixed clamping plate (101) corresponding to each side of the mounting bottom plate (130), and the second fixed clamping plate (101) is connected with the inner wall of the placing cavity (10) through a first micro hydraulic cylinder (102).

4. The sampling device for detecting soil properties of a wheat planting field according to claim 1, wherein The bottom end of the sliding mounting block (22) and the outer periphery of the second mounting port (220) are provided with an embedded groove (221), the embedded groove (221) is connected with a reinforcing support plate (223) through a second micro hydraulic cylinder (222), and adjacent two sliding mounting blocks (22) are connected through a reinforcing connecting rod (224).

5. The sampling device for detecting soil properties of a wheat planting field according to claim 1, wherein The upper end of the sliding mounting block (22) and the outer periphery of the second mounting port (220) are provided with a second electromagnet (225), and the driving assembly (24) comprises a micro forward and reverse motor (240), a T-shaped connecting plate (241) connected with the second mounting port (220) in a vertical section, a metal sheet (242) provided at the bottom end of the horizontal section of the T-shaped connecting plate (241), a rotating connecting shaft (243) connected with the output shaft of the micro forward and reverse motor (240) through a shaft coupling and penetrating through the vertical section of the T-shaped connecting plate (241) and extending to the outside of the second mounting port (220).

6. The sampling device for detecting soil properties of a wheat planting field according to claim 1, wherein The sampling main body (1) is provided with a plurality of sliding adjustment grooves (15), and each sliding adjustment groove (15) is connected with an inverted L-shaped connecting rod (151) through a third micro hydraulic cylinder (150), and the bottom end of the inverted L-shaped connecting rod (151) is provided with a sliding wheel (152).

7. The sampling device for detecting soil properties of a wheat planting field according to claim 5, wherein The sampling head (3) comprises a collection head main body (30) connected with a rotating connection shaft (243) at an upper end, an arc-shaped material blocking buckle (31) arranged at the upper end of the collection head main body (30), and a collection drill bit (32) arranged at the bottom end of the collection head main body (30), the side wall of the collection head main body (30) is uniformly provided with a plurality of collection ports (300), and an arc-shaped soil turning plate (301) is arranged at each collection port (300), and the bottom end of the collection drill bit (32) is movably connected with an abutting blocking plate (320), and the collection drill bit (32) is connected with the bottom end of the abutting blocking plate (320).

8. The sampling device for detecting soil properties of a wheat planting field according to claim 7, characterized by, A T-shaped pushing rod (302) is arranged in the collection head main body (30) and connected with the abutting blocking plate (320) at the bottom end of the vertical section, the horizontal section of the T-shaped pushing rod (302) is slidably connected with the inner wall of the collection head main body (30), and the outer wall of the T-shaped pushing rod (302) is provided with a spring sleeve (303).

9. A soil sampling method for detecting soil properties of a wheat planting field, the sampling apparatus for detecting soil properties of a wheat planting field according to any one of claims 1 to 8, characterized by, The method comprises the following steps: S1, moving the sampling main body (1) to the soil collection point, and taking out each collection installation disc (2) from the sampling installation cavity (11) from bottom to top by the staff, the specific taking-out process being: first, simultaneously pressing the limit receiving blocks (111) at the lowermost end and relatively distributed in the sampling installation cavity (11) into the annular limit groove (110), taking out the collection installation disc (2) at the lowermost end, then simultaneously pressing all the limit receiving blocks (111) at the lower end of the second last collection installation disc (2) by using the external plate-shaped equipment, and taking out the collection installation disc (2), and repeating the above steps to take out all the collection installation discs (2); S2, one-to-one inserting the linkage rod (201) at the upper end of each collection installation disc (2) into the buckling cover (122) in the installation vertical groove (12), and at the same time, electrifying each first electromagnet (123), and using the electromagnetic attraction of the first electromagnet (123) to adsorb the metal ring (202) at the upper end of the linkage rod (201), completing the fixed installation of each collection installation disc (2), after the installation of the collection installation disc (2), taking out the sampling head (3) placed in the placing cavity (10) and connecting with the corresponding driving assembly (24) to complete the installation of the sampling head (3); S3, during sampling, starting the driving assembly (24), driving the sampling head (3) to move downward through the driving assembly (24), when the sampling head (3) contacts the ground, drilling and sampling the soil by using the sampling head (3), after the sampling is completed, driving the sampling head (3) to move upward through the driving assembly (24), and taking out the sampling head (3), when it is necessary to replace each collection point of the same sampling head (3), deenergizing the first electromagnet (123) to separate the linkage rod (201) from the buckling cover (122), and then rotating the collection installation disc (2).

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