Land leveling soil dressing quality detection device with stratified sampling structure

By designing a stratified sampling structure, the error problem caused by soil mixing between soil layers in the quality testing of topsoil after land leveling was solved, and independent sampling and uniform dispersion of soil samples were achieved, improving the accuracy and efficiency of the test.

CN120890733AInactive Publication Date: 2025-11-04JINTIAN IND DEV (SHANDONG) GRP CO LTD +2
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Patent Information

Application Number
CN202511433695.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2025-11-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In existing technologies, when testing the quality of topsoil after land leveling, the mixing of different soil layers leads to significant errors in the test results, affecting the accuracy of the test results.

Method used

The land leveling and topsoil quality testing device adopts a layered sampling structure. Through the combined use of positioning rings, sampling rods and storage covers, it can achieve independent sampling of different soil layers. The design of the crushing plate and vibrating block ensures the uniform dispersion and independent testing of soil samples.

Benefits of technology

It effectively prevents the mixing of different soil layers, improves the accuracy of test results and work efficiency, and ensures the accuracy and consistency of soil quality testing.

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Abstract

The invention provides a land leveling soil dressing quality detection device with a stratified sampling structure, and relates to the technical field of soil detection, the land leveling soil dressing quality detection device comprises a positioning ring sleeve, the inner side of the positioning ring sleeve is provided with two guide vertical grooves at opposite positions; a sampling vertical rod is mounted on the inner side of the positioning ring sleeve in a sliding manner; a traction inner rod is mounted in the sampling vertical rod in an up-down sliding manner; the traction inner rod further penetrates through the sliding partition plate, and a supporting plate is rotationally installed on the outer side of the traction inner rod. And a storage cover is rotationally mounted at the side end of the supporting plate. The traction inner rod is pulled upwards to drive the storage cover to extend out and be inserted into soil, so that different layers of soil dressing can be sampled by moving downwards at one position, mixing of different layers of soil is effectively prevented, the sampling accuracy is ensured, and the problems that multiple times of gradual downward sampling are performed at the same detection point, the upper soil falls to the lower part, and the sampling efficiency is high are solved. The problem that soil components in different positions are mixed in soil samples taken out from the lower part is solved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of soil detection, in particular to a land leveling guest soil quality detection device with a layered sampling structure. BACKGROUND

[0002] Land leveling guest soil refers to leveling the land by mechanical or manual means, covering or mixing suitable guest soil, improving the physical properties, chemical properties and biological properties of the land, and thus improving the productivity and utilization value of the land. After land leveling, a quality detection device needs to be used to detect the quality of the mixed guest soil to ensure the quality of the leveled soil.

[0003] In the prior art, when the quality of the land leveling guest soil is detected, different guest soils are pressed together in layers during the leveling operation. When sampling and detecting the guest soil, the soil is usually sampled step by step downward at the same detection point. However, in the process of deepening the sampling structure, the soil above will fall to the lower part, so that the soil sample taken from the lower part will be mixed with the soil components at different positions, resulting in a large error in the detection result of the quality of the different layers of guest soil, which affects the accuracy of the detection result. SUMMARY

[0004] In view of the deficiencies of the prior art, the application provides a land leveling guest soil quality detection device with a layered sampling structure to solve the problems mentioned in the background.

[0005] To solve the above technical problems, the application is realized by the following technical scheme: The application is a land leveling guest soil quality detection device with a layered sampling structure, which specifically comprises: a positioning ring sleeve, which is in a ring structure, and a protective cover is installed on one side of the top of the positioning ring sleeve; two guide vertical grooves are formed on the inner side of the positioning ring sleeve; a sampling vertical rod is slidably installed on the inner side of the positioning ring sleeve; the bottom of the sampling vertical rod is in a conical structure, four evenly distributed grooves are arranged on the side of the sampling vertical rod, and a positioning block is installed on the outer side of the bottom of the sampling vertical rod; a plurality of partitions are installed on the inner side of the sampling vertical rod, and a traction inner rod is slidably installed inside the sampling vertical rod; the traction inner rod further penetrates the sliding partition, and a support plate is rotatably installed on the outer side of the traction inner rod; a storage cover is rotatably installed on the side end of the support plate; the bottom of the storage cover is slidably installed between the two partitions, and the storage cover is inside the sampling vertical rod.

[0006] Further, the side end bottom of the positioning block is in an inclined structure, and the positioning block is slidably installed in the guide vertical groove; a guide sliding groove is formed in the inner side wall of the sampling vertical rod.

[0007] Further, the side surface of the guide sliding groove is communicated with the slot on the side surface of the sampling vertical rod, and a sliding baffle is slidingly installed in the guide sliding groove.

[0008] Further, a center carrier plate is installed on the outside of the positioning ring sleeve, four supporting plates are installed on the top of the center carrier plate, the sampling vertical rods are movably installed on the top of the supporting plates, and a positioning cover is installed on the outside of the supporting plates.

[0009] Further, the inside of the positioning cover is divided into four storage cavities, a filter groove is arranged at the middle position of the inside bottom of the positioning cover, and the inside of the four storage cavities of the positioning cover is slidingly installed with a crushing plate in two directions; the inside of the crushing plate is provided with a plurality of crushing blocks which are uniformly distributed, and the outside of the crushing plate in two directions is installed with a guide sliding rod.

[0010] Further, a plurality of connecting plates are installed at the outer ends of the guide sliding rods, a driving rod one is installed at the middle position of one of the connecting plates, and a driving rod two is installed at the middle position of the other connecting plate; the driving rod one penetrates through the middle position of the positioning cover.

[0011] Further, a guide groove is arranged at the middle position of the bottom of the positioning cover, vibration blocks one are arranged on both sides of the inside of the guide groove, and a guide plate is slidingly installed in the inside of the guide groove.

[0012] Further, a spring is installed at the outer end of the guide plate, one end of the guide plate is connected with the positioning cover through the spring, a filter groove is arranged at the middle position of the guide plate, and vibration blocks two are arranged on both sides of the guide plate.

[0013] Further, the vibration blocks two impact the side surface of the vibration blocks one, a positioning support plate is installed at the edge position of the bottom of the positioning cover, a guide side groove is arranged on the side surface of the positioning support plate, and a plurality of detection reaction boxes are slidingly installed on the inside of the positioning support plate.

[0014] Further, the plurality of detection reaction boxes are connected together, different functional detection probes are arranged on the inside bottom of the detection reaction boxes, and a connecting support is installed on the outside of the detection reaction boxes; the connecting support is slidingly installed in the inside of the guide side groove; a lead wire is installed on the outside of the detection reaction box, and a display module is installed on the outside of the detection reaction box through the lead wire.

[0015] The land leveling soil quality detection device with the layered sampling structure has the following beneficial effects: The present application is used, when the sampling vertical rod is moved downwards to the appropriate depth in the positioning ring sleeve, the inner pulling rod is pulled upwards to drive the storage cover to extend and insert into the soil, the sampling of different layers of the earthwork is realized by moving downwards in one position, the mixing of different layers of the soil is effectively prevented, the accuracy of the sampling is ensured, the storage covers in different positions are independent and do not contact each other, the possibility of the mixing of different layers of the soil is further reduced, the interference of the mixing of the soil on the detection result is avoided, and the accuracy of the quality detection of the earthwork of the land leveling is improved.

[0016] In addition, the filter groove is arranged at the bottom of the positioning cover, the loose and small soil naturally flows downwards, for the larger soil, the crushing plate and the crushing block are driven by pulling the driving rod one and the driving rod two to crush the large soil, the soil is uniformly dispersed, the soil sample is more uniform, and the overall work efficiency of the quality detection of the earthwork of the land leveling is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings in the following description only relate to some embodiments of the present application, and are not limited to the present application.

[0019] In the drawings: Figure 1 The schematic view of the overall structure of the present application is shown; Figure 2 The schematic view of the folding state of the present application is shown; Figure 3 The schematic view of the sectional structure of the sampling vertical rod of the present application is shown; Figure 4 The schematic view of the three-dimensional structure of the storage cover of the present application is shown; Figure 5 The schematic view of the sectional structure of the positioning cover of the present application is shown; Figure 6 The schematic view of the three-dimensional structure of the crushing plate of the present application is shown; Figure 7 The schematic view of the three-dimensional structure of the guide plate of the present application is shown; Figure 8 The schematic view of the three-dimensional structure of the vibration block two of the present application is shown; Figure 9 The schematic view of the three-dimensional structure of the detection reaction box of the present application is shown.

[0020] LIST OF REFERENCE NUMERALS 1, Positioning ring cover; 101, Protective cover; 102, Guide vertical slot; 103, Sampling vertical rod; 104, Positioning block; 105, Guide sliding slot; 106, Sliding baffle; 107, Partition; 108, Traction inner rod; 109, Support plate; 1010, Storage cover; 2, Center carrier plate; 201, Support plate; 202, Positioning cover; 203, Breaking plate; 204, Breaking block; 205, Guide sliding rod; 206, Connecting plate; 207, Drive rod one; 208, Drive rod two; 3, Guide slot; 301, Vibration block one; 302, Guide plate; 303, Vibration block two; 304, Positioning support plate; 305, Guide side slot; 306, Detection reaction box; 307, Connecting support; 308, Display module. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of protection of the present application.

[0022] Please refer to Figures 1 to 9 : Embodiment one: the application provides a land leveling guest soil quality detection device with a layered sampling structure, comprising: a positioning ring 1, the positioning ring 1 is annular structure, and the top side of the positioning ring 1 is provided with a protective cover 101; the inner side of the positioning ring 1 is provided with two guiding vertical grooves 102 at opposite positions; the inner side of the positioning ring 1 is slidably provided with a sampling vertical rod 103; the bottom of the sampling vertical rod 103 is a conical structure, and the side of the sampling vertical rod 103 is provided with four evenly distributed grooves, and the bottom outside of the sampling vertical rod 103 is provided with a positioning block 104; the side end bottom of the positioning block 104 is an inclined structure, and the positioning block 104 is slidably installed in the inner part of the guiding vertical groove 102; the inner part of the side wall of the sampling vertical rod 103 is provided with a guiding sliding groove 105; the side of the guiding sliding groove 105 is communicated with the groove of the side of the sampling vertical rod 103, and the inner part of the guiding sliding groove 105 is slidably provided with a sliding baffle 106; the top of the sliding baffle 106 is provided with a traction rod, and the side of the sliding baffle 106 is provided with a groove, which can coincide with the groove of the side of the sampling vertical rod 103; the inner side of the sampling vertical rod 103 is provided with a plurality of partitions 107, and the inner part of the sampling vertical rod 103 is slidably provided with a traction inner rod 108; the traction inner rod 108 also penetrates the sliding partition 107, and the outer side of the traction inner rod 108 is rotatably provided with a support plate 109; the side end of the support plate 109 is rotatably provided with a storage cover 1010; the bottom of the storage cover 1010 is slidably installed between the two partitions 107, and the storage cover 1010 is in the inner part of the sampling vertical rod 103.

[0023] In the embodiment of the present application, when the quality of the land leveling guest soil is detected, the positioning ring 1 and the center carrier plate 2 are placed on the ground, the sampling vertical rod 103 is moved downward at the inner side of the positioning ring 1, the conical structure at the bottom of the sampling vertical rod 103 is inserted into the soil, the inclined structure at the bottom of the side end of the positioning block 104 reduces the resistance of the downward movement of the sampling vertical rod 103, the sliding baffle 106 blocks the soil during the downward movement of the sampling vertical rod 103, reducing the soil entering the inside of the sampling vertical rod 103, when the sampling vertical rod 103 is at the appropriate depth in the soil, the traction rod at the top of the sliding baffle 106 is pulled to move upward in the guide sliding groove 105, the slot at the side of the sliding baffle 106 is coincided with the slot at the side of the sampling vertical rod 103, the traction inner rod 108 is pulled upward in the inside of the sampling vertical rod 103 to drive the storage cover 1010 to move between the two partitions 107 through the support plate 109, the storage cover 1010 is moved outward through the slot at the side of the sampling vertical rod 103 and the sliding baffle 106, the storage cover 1010 at different positions is moved outward and inserted into the soil, the different layers of guest soil are stored in the inside of the storage cover 1010, the sampling operation of the different layers of guest soil is completed by moving downward at one position, preventing the mixing of the different layers of soil, the storage covers 1010 at different positions do not contact each other, reducing the problem of soil mixing, the traction inner rod 108 is moved downward to make the storage cover 1010 be stored in the inside of the sampling vertical rod 103 again, the sampling vertical rod 103 is moved upward at the inner side of the positioning ring 1, the positioning block 104 at the outer side of the bottom of the sampling vertical rod 103 is moved upward along the guide vertical slot 102, the top end of the sampling vertical rod 103 is rotated to the transverse position at the inner side of the positioning ring 1, the conical structure at the bottom of the sampling vertical rod 103 is in the inside of the protection cover 101, protecting the bottom of the relatively sharp sampling vertical rod 103, ensuring the safety during the carrying movement.

[0024] The embodiment two is based on the embodiment one, the outer side of the positioning ring cover 1 is provided with the center carrier plate 2; the top of the center carrier plate 2 is provided with four supporting plates 201; the top of the supporting plate 201 is movably provided with the sampling vertical rod 103; the outer side of the supporting plate 201 is provided with the positioning cover 202; the inner side of the positioning cover 202 is divided into four storage cavities, the middle position of the bottom of the inner side of the positioning cover 202 is provided with the filter groove, and the inside of the four storage cavities of the inner side of the positioning cover 202 is slidably provided with the crushing plate 203 in two directions; the inner side of the crushing plate 203 is provided with a plurality of uniformly distributed crushing blocks 204, wherein the crushing plate 203 in two directions is closed together, and the outer side of the crushing plate 203 in two directions is provided with the guide sliding rod 205; the outer end of the plurality of guide sliding rods 205 is provided with the connecting plate 206; the middle position of one connecting plate 206 is provided with the driving rod one 207, and the middle position of the other connecting plate 206 is provided with the driving rod two 208; the driving rod one 207 penetrates the middle position of the positioning cover 202, when the quality of the earth leveling guest soil is detected, the sampling vertical rod 103 is transversely placed on the supporting plate 201 on the top of the center carrier plate 2, so that the slot on the sampling vertical rod 103 faces the inner side of the supporting plate 201, so that the soil in the four storage cavities inside the positioning cover 202 is respectively stored in the four storage cavities inside the positioning cover 202 through the inner side of the supporting plate 201, and the relatively loose and small soil in the soil flows downward through the filter groove at the bottom of the positioning cover 202, for the larger soil, the driving rod one 207 and the driving rod two 208 are pulled respectively to drive the connecting plate 206 to move, the connecting plate 206 in two directions drives the crushing plate 203 in the storage cavity inside the positioning cover 202 through the guide sliding rod 205, the crushing plate 203 in two directions drives the crushing block 204 to move to crush the larger soil, so that the soil flows downward after being dispersed, so that the soil is dispersed to facilitate the quality detection.

[0025] The embodiment three is based on the embodiment one, the middle position of the bottom of the positioning cover 202 is provided with a guide groove 3; the inside of the guide groove 3 is provided with a vibrating block one 301 on both sides, and the inside of the guide groove 3 is also provided with a guide plate 302 slidingly installed; the outer end of the guide plate 302 is provided with a spring, and the outer end of the guide plate 302 is connected with one end of the positioning cover 202 through the spring; the middle position of the guide plate 302 is provided with a filter groove, and both sides of the guide plate 302 are provided with a vibrating block two 303; the vibrating block two 303 collides with the side surface of the vibrating block one 301; the bottom edge position of the positioning cover 202 is provided with a positioning branch plate 304; the side surface of the positioning branch plate 304 is provided with a guide side groove 305, and the inside of the positioning branch plate 304 is slidingly provided with a plurality of detection reaction boxes 306; the plurality of detection reaction boxes 306 are connected together, the inside bottom of the detection reaction box 306 is provided with a detection probe with different functions, and the outside of the detection reaction box 306 is provided with a connecting support 307; the connecting support 307 is slidingly installed in the inside of the guide side groove 305; the outside of the detection reaction box 306 is provided with a wire, and the outside of the detection reaction box 306 is provided with a display module 308 through the wire; when the quality of the earthwork is detected, the inside of the different detection reaction boxes 306 is respectively provided with a detection probe for detecting the soil texture, the soil porosity, the soil pH value, and the heavy metal content; the connecting support 307 is pulled to drive the plurality of detection reaction boxes 306 to move in the inside of the positioning branch plate 304, the relatively positioned connecting support 307 moves along the guide side groove 305, so that the plurality of detection reaction boxes 306 respectively move below the filter groove at the bottom of the guide plate 302, the outer end of the guide plate 302 is pulled to move in the inside of the guide groove 3, the vibrating block two 303 on both sides of the guide plate 302 collides with the vibrating block one 301 on both sides of the guide groove 3, so that the vibrating block one 301 causes the bottom of the positioning cover 202 to vibrate, the filter groove on the guide plate 302 coincides with the filter groove at the bottom of the positioning cover 202, so that the soil falls in the inside of the detection reaction box 306, the vibration caused by the vibrating block one 301 accelerates the falling speed of the soil, so that the soil is respectively stored in the inside of the different detection reaction boxes 306, the soil different projects are simultaneously detected, the data of the detection is displayed through the display module 308, and the accuracy of the soil quality detection is improved.

[0026] The working principle of the embodiment is as follows: the positioning ring sleeve 1 and the center carrier plate 2 are placed on the ground, the sampling vertical rod 103 is inserted into the soil at a suitable depth by pushing downward at the inner side of the positioning ring sleeve 1, the sliding baffle 106 is pulled to make the slot at the side thereof coincide with the slot at the side of the sampling vertical rod 103, the traction inner rod 108 is pulled upward in the sampling vertical rod 103 to drive the storage cover 1010 to move outward and be inserted into the soil, the different layers of the guest soil are stored in the storage cover 1010, the sampling operation of the different layers of the guest soil is completed by moving downward at one position, the traction inner rod 108 is moved downward to make the storage cover 1010 be stored in the sampling vertical rod 103 again, the sampling vertical rod 103 is moved upward at the inner side of the positioning ring sleeve 1 to drive the positioning block 104 to move upward to the top end along the guide vertical slot 102, the sampling vertical rod 103 is rotated to the transverse position at the inner side of the positioning ring sleeve 1 and is placed on the supporting plate 201, the slot on the sampling vertical rod 103 faces the inner side of the supporting plate 201, the soil in the storage cover 1010 is respectively stored in the four storage cavities at the inner side of the positioning cover 202 through the inner side of the supporting plate 201, for the larger soil, the drive rod one 207 and the drive rod two 208 are respectively pulled to drive the connecting plate 206 to move, the connecting plate 206 in two directions drives the crushing plate 203 to crush the larger soil through the guide sliding rod 205, the soil flows downward after being dispersed, the detection probes for detecting the soil texture, the soil porosity, the pH value, the heavy metal content are respectively arranged in the different detection reaction boxes 306, the connecting support 307 is pulled to drive the multiple detection reaction boxes 306 to move at the inner side of the positioning support plate 304, the multiple detection reaction boxes 306 respectively move below the filter grooves at the bottom of the guide plate 302, the guide plate 302 is pulled to drive the two vibration blocks two 303 to impact the two vibration blocks one 301 at the two sides of the guide groove 3, the vibration block one 301 causes the vibration of the bottom of the positioning cover 202, when the filter groove on the guide plate 302 coincides with the filter groove at the bottom of the positioning cover 202, the soil falls into the detection reaction box 306, the simultaneous detection of different items of the soil is ensured, and the accuracy of the soil quality detection is improved.

[0027] In this paper, the following points need to be noted: 1. The drawings of the embodiments of the present application only relate to the structures involved in the embodiments of the present application, and other structures can refer to the general design.

[0028] 2. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined to obtain new embodiments.

[0029] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A land leveling and topsoil quality testing device with a stratified sampling structure, comprising: A positioning ring sleeve (1) is provided, with a protective cover (101) installed on one side of its top. The positioning ring sleeve (1) is characterized by having two guide grooves (102) with opposing positions on its inner side; a sampling rod (103) is slidably installed on the inner side of the positioning ring sleeve (1); four evenly distributed slots are provided on the side of the sampling rod (103), and a positioning block (104) is installed on the outer bottom of the sampling rod (103); multiple partitions are installed on the inner side of the sampling rod (103). The sampling vertical rod (103) is equipped with a traction inner rod (108) that slides up and down inside the plate (107); the traction inner rod (108) also passes through the sliding partition (107), and a support plate (109) is rotatably installed on the outside of the traction inner rod (108); a storage cover (1010) is rotatably installed on the side end of the support plate (109); the bottom of the storage cover (1010) is slidably installed between the two partitions (107), and the storage cover (1010) is located inside the sampling vertical rod (103).

2. The land leveling topsoil quality testing device with a layered sampling structure according to claim 1, characterized in that, The bottom of the side end of the positioning block (104) is inclined, and the positioning block (104) is slidably installed inside the guide vertical groove (102); the sampling vertical rod (103) has a guide groove (105) inside its side wall.

3. The land leveling and topsoil quality testing device with a layered sampling structure according to claim 2, characterized in that, The side of the guide chute (105) is connected to the slot on the side of the sampling rod (103), and a sliding baffle (106) is slidably installed inside the guide chute (105); a traction rod is installed on the top of the sliding baffle (106), and a slot is provided on the side of the sliding baffle (106), which can overlap with the slot on the side of the sampling rod (103).

4. A land leveling topsoil quality testing device with a layered sampling structure according to claim 3, characterized in that, A central carrier plate (2) is installed on the outer side of the positioning ring (1); four support plates (201) are installed on the top of the central carrier plate (2); a sampling vertical rod (103) is movably installed on the top of the support plate (201); and a positioning cover (202) is installed on the outer side of the support plate (201).

5. A land leveling topsoil quality testing device with a layered sampling structure according to claim 4, characterized in that, The inner side of the positioning cover (202) is divided into four storage cavities. A filter groove is provided at the middle position of the bottom of the inner side of the positioning cover (202). A crushing plate (203) is slidably installed in two directions inside the four storage cavities inside the positioning cover (202). The inner side of the crushing plate (203) is provided with multiple evenly distributed crushed blocks (204). The crushing plates (203) in two directions are closed together, and guide slide rods (205) are installed on the outer sides of the crushing plates (203) in two directions.

6. A land leveling topsoil quality testing device with a layered sampling structure according to claim 5, characterized in that, A connecting plate (206) is installed on the outer end of multiple guide slide rods (205); a drive rod one (207) is installed in the middle position of one connecting plate (206), and a drive rod two (208) is installed in the middle position of another connecting plate (206); the drive rod one (207) passes through the middle position of the positioning cover (202).

7. A land leveling topsoil quality testing device with a layered sampling structure according to claim 6, characterized in that, The positioning cover (202) has a guide groove (3) at the middle of its bottom; both sides of the guide groove (3) are provided with vibration blocks (301), and a guide plate (302) is also slidably installed inside the guide groove (3).

8. A land leveling and topsoil quality testing device with a layered sampling structure according to claim 7, characterized in that, A spring is installed at the outer end of the guide plate (302), and the outer end of the guide plate (302) is connected to one end of the positioning cover (202) through the spring; a filter groove is provided in the middle of the guide plate (302), and vibration blocks (303) are provided on both sides of the guide plate (302).

9. A land leveling topsoil quality testing device with a layered sampling structure according to claim 8, characterized in that, The second vibration block (303) collides with the side of the first vibration block (301); a positioning support plate (304) is installed at the bottom edge of the positioning cover (202); a guide side groove (305) is opened on the side of the positioning support plate (304), and multiple detection reaction boxes (306) are slidably installed on the inner side of the positioning support plate (304).

10. A land leveling topsoil quality testing device with a layered sampling structure according to claim 9, characterized in that, Multiple detection reaction boxes (306) are connected together. Different detection probes with different functions are provided on the inner bottom of the multiple detection reaction boxes (306), and a connecting bracket (307) is installed on the outer side of the detection reaction box (306). The connecting bracket (307) is slidably installed inside the guide side groove (305). A wire is installed on the outer side of the detection reaction box (306), and a display module (308) is installed on the outer side of the detection reaction box (306) through the wire.

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