Soil screening device for soil detection

Abstract

The present application discloses a soil screening device for soil testing, which relates to the field of soil testing technology. The device consists of a vehicle frame, a sampling assembly, a lifting assembly, a hammering assembly, and a collection assembly. The vehicle frame is a rectangular structure with universal wheels at the bottom and counterweight boxes on both sides. The sampling assembly includes a round rod, a sampling piece, and a hammer plate. The round rod slides within a circular hole in the vehicle frame, and the hammer plate presses down to combine the two semi-conical sampling pieces for sampling. The lifting assembly lifts the sampling piece using components such as a lifting ring, an auxiliary rod, and an airbag. The hammering assembly consists of a column, a slide rail, and a weight. A winch pulls a pull rope to cause the weight to slide down the slide rail, hammering the sampling piece to screen the soil. Finally, the collection assembly uses a first cylinder to push a connecting curved rod to move the collection frame and disposable storage bag below the sampling piece to collect the screened soil, effectively improving the efficiency of soil sampling.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and in particular to a soil screening device for soil detection. Background Art

[0002] Soil testing, as a key means of assessing soil health, is crucial for agricultural production, environmental protection, and land resource management. Soil is the foundation of plant growth, and its quality directly impacts crop yield and quality. Soil testing accurately measures soil nutrient content, pH, heavy metal contamination, and microbial activity, providing data support for scientific fertilization, soil improvement, and pollution prevention. Furthermore, soil testing can help identify potential environmental risks, such as the threat posed by soil pollution to groundwater and ecosystems, enabling timely measures to protect the ecological environment. With the development of modern agriculture and growing environmental awareness, the demand for soil testing is increasing, and its technology is also constantly advancing. From traditional chemical analysis to modern instrumental testing, soil testing is becoming faster, more accurate, and more comprehensive, providing strong support for the sustainable use of soil resources and environmental protection.

[0003] Publication No. CN112014149B discloses a surface soil sampling device for soil testing, comprising a device body, a base fixed to the bottom end of the device body, a soil detector mounted on the top end of the device body, a display screen mounted on the top end of the soil detector, control buttons disposed on one side of the display screen, and a rotating disk connected to the top end of the device body, located on one side of the soil detector, with a fixed frame fixed to the outer wall of the rotating disk. The present invention comprises a No. 3 motor, a No. 3 rod, a connecting sleeve, a moving rod, a moving plate, and a moving wheel. The output end of the No. 3 motor drives the No. 3 rod to rotate, which drives the connecting sleeve to move. The movement of the connecting sleeve drives the moving rod to perform a fan-shaped movement. The moving rod drives the moving plate downward, which in turn drives the moving wheel downward. The moving wheel is in close contact with the ground, and the user can use the moving wheel to move the device body to a designated position.

[0004] During actual use of the above device, if the soil is hard, it will be difficult to insert the sampling tube into the soil for sampling, thereby affecting the sampling efficiency. Summary of the Invention

[0005] The present application provides a soil screening device for soil detection, which solves the technical problem in the prior art that it is difficult to insert a sampling tube into the soil for sampling due to the hard soil. By hammering the hammer plate with a heavy hammer, the sampling piece can smoothly enter the soil interior for sampling in the harder soil. By alternating the repulsive force and the suction force of the electromagnet, the sampling piece can enter the soil interior more smoothly after entering the soil surface, and the sampling piece can be lifted up by the air bag.

[0006] The present application provides a soil screening device for soil testing, comprising a frame, a sampling assembly, a lifting assembly, a hammering assembly, and a collecting assembly;

[0007] The frame is a rectangular structure, and a plurality of universal wheels are provided at the lower end of the frame. Both side ends of the frame are fixedly connected with a counterweight box for placing a counterweight block;

[0008] A rectangular groove is formed at one end of the frame, and a round through hole is formed on the top surface of the rectangular groove;

[0009] The sampling assembly includes a round rod, a sampling piece and a hammer plate, wherein the round rod is slidably connected in the round through hole, the top of the round rod is fixedly connected to the hammer plate, and the lower end of the round rod is hinged to two of the sampling pieces;

[0010] The two sampling pieces are both semi-conical structures, and when the two sampling pieces are combined, a cavity is formed for loading the sampled soil. The lower end of the combined piece has an opening for allowing the soil to enter the cavity from the opening.

[0011] Two pairs of electromagnets are fixedly connected to the opposite surfaces of the two sampling members;

[0012] The frame is symmetrically provided with lifting cavities at both ends close to the rectangular slot, and is also symmetrically provided with lifting through slots communicating with the rectangular slot;

[0013] The lifting assembly includes a lifting ring, an auxiliary rod, an air bag, a lifting plate, a dual-purpose air pump and a connecting air pipe, wherein the round rod is provided with a notch for limiting the upper and lower positions of the lifting ring, and the lifting ring is rotatably connected to the round rod through the notch;

[0014] One end of the two auxiliary rods is symmetrically fixedly connected to the lifting ring, and the other end passes through the lifting slot and is fixedly connected to the lifting plate; the bottom of the lifting cavity is fixedly connected to the airbag, and the lifting plate is located at the upper end of the airbag, and the lifting plate is slidably connected to the lifting cavity;

[0015] The interior of the frame is also fixedly connected to the dual-purpose air pump, one end of the connecting air pipe is fixedly connected to the dual-purpose air pump, and the other end is fixedly connected to the air bag;

[0016] The hammering assembly includes a column, a slide rail, a heavy hammer, a first auxiliary roller, a second auxiliary roller, a winch and a pull rope, wherein the column is fixedly connected to the top of the frame and close to the round through hole, the end of the column facing the round through hole is provided with a slide rail, and the top end of the column is fixedly connected to the first auxiliary roller;

[0017] The second auxiliary roller and the winch are fixedly connected in sequence at the top of the frame away from the round through hole;

[0018] The weight is slidably connected to the slide rail and is concentric with the round rod;

[0019] One end of the pull rope is fixedly connected to the top of the weight, and the other end passes through the first auxiliary roller and the second auxiliary roller respectively and is fixedly connected to the output end of the winch;

[0020] A collecting groove is provided at the bottom of the frame and is close to the rectangular groove;

[0021] The collection assembly includes a first cylinder, a connecting bent rod, a collection frame and a disposable storage bag, wherein the first cylinder is fixedly connected to one end in the collection tank, the output end of the first cylinder is fixedly connected to the connecting bent rod, the end of the connecting bent rod away from the first cylinder is fixedly connected to the collection frame, and a disposable storage bag is detachable on the collection frame.

[0022] Preferably, the column is further divided into a lower column and an upper column; the lower column is further fixedly connected to a second cylinder, wherein the lower column and the upper column are connected through the second cylinder; the slide rail is further divided into a fixed slide rail and a movable slide rail; wherein the fixed slide rail has a cavity, the movable slide rail is smaller than the fixed slide rail, and the movable slide rail is slidably connected to the cavity.

[0023] Preferably, the frame also includes a rotating motor, a belt, an auxiliary shaft, a first gear, a second gear and a fixed bar; the rotating motor is fixedly connected to the top of the frame and is close to one end of the round rod; the auxiliary shaft is fixedly connected to the top of the frame, wherein a cavity for storing the first gear and the second gear is opened in the frame; the belt is rotatably connected to the output end of the rotating motor and the auxiliary shaft respectively; the lower end of the auxiliary shaft is fixedly connected to the first gear; the inner ring of the second gear is fixedly connected to a plurality of the fixed bars; the outer cross-section of the round rod is provided with a plurality of grooves, and the size is the same as the fixed bars; the number of the grooves is equal to the number of the fixed bars; the fixed bar is clamped in the groove; the second gear is clamped to the round rod through the fixed bar.

[0024] Preferably, an arcuate groove is formed on the inner ring of the second gear; one end of the fixing bar is fixedly connected to a guide block; and the guide block is slidably connected in the arcuate groove.

[0025] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0026] By hammering the hammer plate with a heavy hammer, the sampling piece can smoothly enter the soil to take samples in harder soil. By alternating the repulsive force and suction force of the electromagnet, the sampling piece can enter the soil more smoothly after entering the soil surface, and the air bag can lift the sampling piece to achieve the technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a soil screening device for soil testing according to the present invention;

[0028] Figure 2 A half-section structural diagram of a soil screening device for soil testing according to the present invention;

[0029] Figure 3 This is a partial cross-sectional view of a soil screening device for soil testing according to the present invention;

[0030] Figure 4 This is a top sectional view of a frame of a soil screening device for soil testing according to the present invention;

[0031] Figure 5 This is a partial cross-sectional view of a second embodiment of a soil screening device for soil testing according to the present invention;

[0032] Figure 6 This is a schematic structural diagram of a third embodiment of a soil screening device for soil testing according to the present invention;

[0033] Figure 7 This is a partial cross-sectional view of a third embodiment of a soil screening device for soil testing according to the present invention;

[0034] Figure 8 This is a structural diagram of the fixing bars of a soil screening device for soil testing according to a third embodiment of the present invention;

[0035] Figure 9 This is a structural diagram of a guide block of a fourth embodiment of a soil screening device for soil testing according to the present invention.

[0036] In the picture:

[0037] 100, frame, 101, rectangular groove, 102, round through hole, 103, lifting cavity, 104, lifting through groove, 105, collecting trough, 110, universal wheel, 120, counterweight box, 200, round rod, 201, sampling piece, 202, hammer plate, 203, electromagnet, 204, strip groove, 210, lifting ring, 211, auxiliary rod, 212, air bag, 213, lifting plate, 214, dual-purpose air pump, 215, connecting air pipe, 220, column, 2201, lower column, 2202, upper column, 221, Slide rail, 2211, fixed slide rail, 2212, movable slide rail, 222, heavy hammer, 223, first auxiliary roller, 224, second auxiliary roller, 225, winch, 226, pull rope, 227, second cylinder, 230, first cylinder, 231, connecting bent rod, 232, collecting frame, 233, disposable storage bag, 240, rotating motor, 241, belt, 242, auxiliary shaft, 243, first gear, 244, second gear, 245, fixing bar, 2441, arc groove, 2451, guide block. DETAILED DESCRIPTION

[0038] To facilitate understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0039] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are for illustrative purposes only and do not represent the only implementation method.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains; the terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0041] Example 1: Figures 1 to 4 As shown, the present application provides a soil screening device for soil detection, comprising a frame 100, a sampling assembly, a lifting assembly, a hammering assembly, and a collecting assembly;

[0042] The frame 100 is a rectangular structure, and a plurality of universal wheels 110 are provided at the lower end of the frame 100. The two side ends of the frame 100 are fixedly connected to a counterweight box 120 for placing a counterweight block.

[0043] A rectangular groove 101 is formed at one end of the frame 100, and a round through hole 102 is formed on the top surface of the rectangular groove 101;

[0044] The sampling assembly includes a round rod 200, a sampling piece 201 and a hammer plate 202, wherein the round rod 200 is slidably connected to the round through hole 102, the hammer plate 202 is fixedly connected to the top of the round rod 200, and the two sampling pieces 201 are hinged at the lower end of the round rod 200;

[0045] The two sampling pieces 201 are both semi-conical structures, and the two sampling pieces 201 are combined to form a cavity for loading the sampled soil. The lower end of the combined pieces has an opening for allowing the soil to enter the cavity through the opening.

[0046] Two pairs of electromagnets 203 are fixedly connected to the opposite surfaces of the two sampling members 201;

[0047] The frame 100 is symmetrically provided with lifting cavities 103 at both ends close to the rectangular slot 101, and is also symmetrically provided with lifting through slots 104 communicating with the rectangular slot 101;

[0048] The lifting assembly includes a lifting ring 210, an auxiliary rod 211, an air bag 212, a lifting plate 213, a dual-purpose air pump 214, and a connecting air pipe 215. The round rod 200 is provided with a notch for limiting the upper and lower positions of the lifting ring 210. The lifting ring 210 is rotatably connected to the round rod 200 through the notch.

[0049] One end of the two auxiliary rods 211 is symmetrically fixedly connected to the lifting ring 210, and the other end passes through the lifting slot 104 and is fixedly connected to the lifting plate 213; the bottom of the lifting cavity 103 is fixedly connected to the airbag 212, and the lifting plate 213 is located above the airbag 212, and the lifting plate 213 is slidably connected to the lifting cavity 103;

[0050] The dual-purpose air pump 214 is also fixedly connected to the interior of the vehicle frame 100. One end of the connecting air pipe 215 is fixedly connected to the dual-purpose air pump 214, and the other end is fixedly connected to the air bag 212.

[0051] The hammering assembly includes a column 220, a slide rail 221, a weight 222, a first auxiliary roller 223, a second auxiliary roller 224, a winch 225 and a pull rope 226, wherein the column 220 is fixedly connected to the top of the frame 100 and is close to the round through hole 102, the end of the column 220 facing the round through hole 102 is provided with a slide rail 221, and the top end of the column 220 is fixedly connected to the first auxiliary roller 223; the top of the frame 100 away from the round through hole 102 is fixedly connected to the second auxiliary roller 224 and the winch 225 in sequence;

[0052] The weight 222 is slidably connected to the slide rail 221 and is concentric with the round rod 200;

[0053] One end of the pull rope 226 is fixedly connected to the top of the weight 222, and the other end passes through the first auxiliary roller 223 and the second auxiliary roller 224 and is fixedly connected to the output end of the winch 225;

[0054] A collecting groove 105 is formed at the bottom of the frame 100 and is close to the rectangular groove 101;

[0055] The collection assembly includes a first cylinder 230, a connecting bent rod 231, a collection frame 232 and a disposable storage bag 233, wherein the first cylinder 230 is fixedly connected to one end inside the collection tank 105, the output end of the first cylinder 230 is fixedly connected to the connecting bent rod 231, the end of the connecting bent rod 231 away from the first cylinder 230 is fixedly connected to the collection frame 232, and a disposable storage bag 233 is detachable from the collection frame 232.

[0056] Specific implementation: The vehicle frame 100 is moved to the position where soil needs to be collected by the universal wheel 110, and the counterweight block is placed in the counterweight box 120 to improve the stability of the vehicle frame 100 and reduce the shaking effect of the hammer assembly on the vehicle frame 100 when hammering. The electromagnet 203 is started to make the two sampling pieces 201 attract each other, and then the sampling piece 201 is aligned with the soil position to be sampled and pressed against the surface of the soil, and the winch 225 is started. The heavy hammer 222 repeatedly hammers the hammer plate 202. When the heavy hammer 222 is lifted by hammering, the repulsive force and the suction force of the electromagnet 203 can be alternately replaced, so that the two sampling pieces 201 can be slightly opened, and the surface soil on both sides of the sampling piece 201 can be pushed away; in the process of the two sampling pieces 201 entering the soil, the soil enters the two sampling pieces. In the inner cavity formed by the sample piece 201, after sampling is completed, the dual-purpose air pump 214 is started, so that the airbag 212 expands upward in the lifting cavity 103, driving the lifting plate 213 to move upward, and the lifting plate 213 drives the auxiliary rod 211 and the lifting ring 210 to move upward, and the lifting ring 210 drives the round rod 200 to move upward, and the sampling piece 201 is moved to a position higher than the collection frame 232 and the dual-purpose air pump 214 is turned off, and then the first cylinder 230 is started. The first cylinder 230 drives the connecting bent rod 231 and the collection frame 232 to extend forward to the bottom direction of the sampling piece 201. At this time, the electromagnet 203 of the sampling piece 201 is adjusted to a mutually repelling magnetic force, so that the two sampling pieces 201 are opened, and the sampled soil is poured into the disposable storage bag 233, and the sampling work of soil screening is completed.

[0057] Beneficial effect: The heavy hammer 222 strikes the hammer plate 202, so that the sampling piece 201 can smoothly enter the soil to take samples in harder soil. By alternating the repulsive force and the suction force of the electromagnet 203, the sampling piece 201 can enter the soil more smoothly after entering the soil surface, and the air bag 212 lifts the sampling piece 201. This effectively solves the technical problem of the difficulty in inserting the sampling tube into the soil for sampling when the soil is hard.

[0058] Embodiment 2: Since the soil on the surface is relatively hard, in order to allow the heavy hammer 222 to cope with soils of different hardness, the column 220 and the slide rail 221 are improved;

[0059] like Figure 5 As shown, the column 220 is further divided into a lower column 2201 and an upper column 2202; the lower column 2201 is further fixedly connected to a second cylinder 227, wherein the lower column 2201 and the upper column 2202 are connected via the second cylinder 227;

[0060] The slide rail 221 is further divided into a fixed slide rail 2211 and a movable slide rail 2212 , wherein the fixed slide rail 2211 has a cavity, and the movable slide rail 2212 is smaller than the fixed slide rail 2211 , and the movable slide rail 2212 is slidably connected in the cavity.

[0061] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0062] The hammering height of the heavy hammer 222 is controlled, thereby controlling its hammering force. According to the different hardnesses of the topsoil and the inner soil, the hammering force of the heavy hammer 222 is controlled, so that the heavy hammer 222 can cope with soils of different hardnesses and improve its applicable environment range.

[0063] Example 3: Some soils have a certain viscosity. In order to improve the efficiency of the airbag 212 in lifting the sampling assembly, the frame 100 and the round rod 200 are improved;

[0064] like Figures 6 to 8 As shown, the frame 100 further includes a rotating motor 240, a belt 241, an auxiliary shaft 242, a first gear 243, a second gear 244 and a fixing bar 245;

[0065] The rotary motor 240 is fixedly connected to the top of the frame 100 and close to one end of the round rod 200;

[0066] The auxiliary shaft 242 is fixedly connected to the top of the frame 100 , wherein a cavity is opened in the frame 100 for storing the first gear 243 and the second gear 244 ;

[0067] The belt 241 is rotatably connected to the output end of the rotary motor 240 and the auxiliary shaft 242 respectively; the lower end of the auxiliary shaft 242 is fixedly connected to the first gear 243;

[0068] The inner ring of the second gear 244 is fixedly connected to a plurality of fixing bars 245;

[0069] The outer cross-section of the round rod 200 is provided with a plurality of slots 204 , which are the same size as the fixing bars 245 ; the number of the slots 204 is equal to the number of the fixing bars 245 ;

[0070] The fixing bar 245 is clamped in the bar groove 204;

[0071] The second gear 244 is engaged with the round rod 200 via a fixing bar 245 .

[0072] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0073] The round rod 200 is driven to rotate by the fixing bar 245, so that the sticky connection between the sampled soil and the original soil can be broken by the torsional force. After the sticky connection is broken, the fixing bar 245 drives the round rod 200 to keep rotating during the rising process to prevent it from getting stuck during the extraction of the sampling component, thereby effectively improving its lifting efficiency.

[0074] Example 4: The soil during the sampling process has a certain viscosity, and it is necessary to further break the sticky connection between the sampled soil and the original soil, so the second gear 244 and the fixing bar 245 are further improved;

[0075] like Figure 9 As shown, an arcuate groove 2441 is formed on the inner ring of the second gear 244 ; a guide block 2451 is fixedly connected to one end of the fixing bar 245 ; and the guide block 2451 is slidably connected in the arcuate groove 2441 .

[0076] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0077] When the second gear 244 drives the round rod 200 to rotate, there can be a certain height of lifting, so that the sticky connection between the sampled soil and the original soil can be broken by the torsional force and the lifting force. After the sticky connection is broken, the sampling assembly is lifted in conjunction with the airbag 212, thereby improving the sampling efficiency.

[0078] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations are readily apparent to those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A soil screening device for soil detection, comprising a frame, a sampling assembly, a lifting assembly, a hammering assembly and a collecting assembly, characterized in that: The frame is a rectangular structure, and a plurality of universal wheels are provided at the lower end of the frame. Counterweight boxes are fixedly connected to both sides of the frame for placing counterweight blocks. A rectangular groove is formed at one end of the frame, and a round through hole is formed on the top surface of the rectangular groove; The sampling assembly includes a round rod, a sampling piece and a hammer plate, wherein the round rod is slidably connected in the round through hole, the hammer plate is fixed to the top of the round rod, and the lower end of the round rod is hinged with two sampling pieces; The two sampling pieces are both semi-conical structures, and a cavity is formed when the two sampling pieces are combined, and an opening is formed at the lower end of the combined piece; Two pairs of electromagnets are fixedly connected to the opposite surfaces of the two sampling members; The frame is symmetrically provided with lifting cavities at both ends close to the rectangular slot, and is also symmetrically provided with lifting through slots communicating with the rectangular slot; The hammering assembly includes a column, a weight and a slide rail. The column is fixedly connected to the top of the frame and is close to the round through hole. The column is further divided into a lower column and an upper column. The lower column is further fixedly connected to a second cylinder. A slide rail is provided at one end of the column facing the round through hole. The slide rail is further divided into a fixed slide rail and a movable slide rail. The weight is slidably connected to the slide rail and is concentric with the round rod to control the hammering height of the weight, thereby controlling the hammering force of the weight. The lower column is connected to the upper column through the second cylinder. The fixed slide rail has a cavity. The movable slide rail is smaller than the fixed slide rail and is slidably connected in the cavity. The frame further includes an auxiliary shaft, a first gear, a second gear, and a fixing bar. The auxiliary shaft is arranged on the top of the frame. A cavity for storing the first gear and the second gear is opened in the frame. The lower end of the auxiliary shaft is fixedly connected to the first gear. The inner ring of the second gear is provided with a plurality of fixing bars. The outer cross-section of the round rod is provided with a plurality of grooves of the same size as the fixing bars. The second gear is clamped to the round rod through the fixing bar. The fixing bar drives the round rod to rotate, thereby breaking the sticky connection between the sampled soil and the original soil. The inner ring of the second gear is provided with an arc-shaped groove, and one end of the fixed bar is fixedly connected to a guide block, which is slidably connected in the arc-shaped groove. When the second gear drives the round rod to rotate, the round rod is driven to lift, and the sticky connection between the sampled soil and the original soil is broken by the torsional force and the lifting force; The frame also includes a rotating motor and a belt; the rotating motor is fixedly connected to the top of the frame and close to one end of the round rod; the belt is rotationally connected to the output end of the rotating motor and the auxiliary shaft respectively.

2. A soil screening device for soil detection according to claim 1, characterized in that: The lifting assembly includes a lifting ring, an auxiliary rod, an airbag, a lifting plate, a dual-purpose air pump and a connecting air pipe, wherein the round rod is provided with a slot for limiting the upper and lower positions of the lifting ring, and the lifting ring is rotatably connected to the round rod through the slot.

3. A soil screening device for soil detection according to claim 2, characterized in that: One end of the two auxiliary rods is symmetrically fixedly connected to the lifting ring, and the other end passes through the lifting slot and is fixedly connected to the lifting plate; the bottom of the lifting cavity is fixedly connected to the airbag, and the lifting plate is located at the upper end of the airbag, and the lifting plate is slidably connected to the lifting cavity.

4. A soil screening device for soil detection according to claim 3, characterized in that: The hammering assembly further includes a first auxiliary roller, a second auxiliary roller, a winch and a pull rope, wherein one end of the top of the column is fixedly connected to the first auxiliary roller; The second auxiliary roller and the winch are fixedly connected in sequence at the top of the frame away from the round through hole; One end of the pull rope is fixedly connected to the top of the weight, and the other end passes through the first auxiliary roller and the second auxiliary roller respectively and is fixedly connected to the output end of the winch; A collecting groove is provided at the bottom of the frame and is close to the rectangular groove.

5. A soil screening device for soil detection according to claim 4, characterized in that: The collection assembly includes a first cylinder, a connecting bent rod, a collection frame, and a disposable storage bag, wherein the first cylinder is fixedly connected to one end of the collection tank, and the output end of the first cylinder is fixedly connected to the connecting bent rod; One end of the connecting bent rod away from the first cylinder is fixedly connected to the collecting frame, and a disposable storage bag is detachably provided on the collecting frame.

6. A soil screening device for soil detection according to claim 5, characterized in that: The number of the strip grooves is equal to the number of the fixing strips; the fixing strips are clamped in the strip grooves.

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