Soil screening device for soil detection

Abstract

The utility model relates to the technical field of soil screening, and discloses a soil screening device for soil detection, which comprises a screening box and a rotating screw rod between a left vertical plate and a right vertical plate, a first motor is fixedly mounted on the outer surface of one of the vertical plates, and the outer surface of the screw rod is in threaded connection with a threaded plate; the outer surface of the top of the connecting pipe fixedly communicates with a hopper, a second motor is fixedly installed on the outer surface of the conveying pipe, a spiral blade is wound around the outer surface of a rotating shaft, the bottom of the conveying pipe fixedly communicates with a plurality of discharging pipes, and a first motor drives a lead screw to drive a threaded rod to enable the hopper to move. And a rotating shaft is driven by a second motor to drive a spiral blade to rotate to convey soil, so that the soil enters the screening box through a discharging pipe, the soil can be uniformly distributed in the screening box when the soil is input, and the soil can be uniformly and sufficiently screened subsequently.

Description

A soil screening device for soil testing Technical Field

[0001] This utility model relates to the field of soil screening technology, specifically a soil screening device for soil testing. Background Technology

[0002] Environmental soil testing is an important measure to understand the status of soil environmental quality, with the main purpose of preventing and controlling soil pollution hazards. Appropriate sampling points are determined based on the monitoring objectives and regional environmental conditions. Sampling points should be distributed as evenly as possible, or sampling can be conducted according to different areas defined by plot divisions, in order to comprehensively monitor soil quality. After collecting soil samples, they need to be sieved according to their particle size.

[0003] Currently, the common screening method involves directly conveying soil into a screening box for screening. However, the soil feed hopper is usually fixed, causing the soil to accumulate in one place after being conveyed into the screening box, making subsequent screening difficult. Therefore, a soil screening device for soil testing is proposed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a soil screening device for soil testing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a soil sieving device for soil testing, comprising a sieving box, a rectangular groove formed on the top outer surface of the sieving box, vertical plates fixedly connected to the four corners of the rectangular groove on the top outer surface of the sieving box, a rotating screw between the left and right vertical plates, a first motor fixedly mounted on the outer surface of one of the vertical plates, the output end of the first motor fixedly connected to the screw, a threaded plate threadedly connected to the outer surface of the screw, a connecting pipe fixedly passing through the outer surface of the threaded plate, a hopper fixedly connected to the top outer surface of the connecting pipe, a conveying pipe fixedly connected to the bottom outer surface of the connecting pipe, a second motor fixedly mounted on the outer surface of the conveying pipe, a rotating shaft fixedly connected to the output end of the second motor, spiral blades wound around the outer surface of the rotating shaft, and multiple discharge pipes fixedly connected to the bottom of the conveying pipe.

[0006] Furthermore, two fixed frames are fixedly connected to the inner surface of the screening box, springs are fixedly connected to the top four corners of the fixed frames, a connecting frame is fixedly connected to the top outer surface of the springs, a screening frame is set inside the connecting frame, and a vibration motor is installed on the outer surface of the connecting frame.

[0007] Furthermore, the middle of the fixed frame is hollow, and a receiving box is movably provided on the bottom outer surface of the screening box.

[0008] Furthermore, both of the outer surfaces of the filter frames are provided with filter holes, and the diameter of the lower filter hole is smaller than that of the upper filter hole.

[0009] Furthermore, a sliding rod is fixedly connected between the two vertical plates, and the threaded plate is movably sleeved on the outside of the sliding rod.

[0010] Furthermore, the outer surface of the screening box is provided with a sealing plate, and the screening frame is movably inserted inside the connecting frame, with the sealing plate corresponding to the screening frame.

[0011] Furthermore, limit rods are fixedly connected to the four bottom corners of the connecting frame, the limit rods movably penetrate the outer surface of the fixed frame, and the springs are sleeved on the outside of the limit rods.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This soil screening device for soil testing uses a first motor to drive a lead screw to move a threaded rod, and a second motor to drive a rotating shaft to rotate a spiral blade to transport the soil. The soil is then fed into a screening box through a discharge pipe, ensuring that the soil is evenly distributed within the screening box during input, allowing for uniform and thorough screening of the soil.

[0014] 2. This soil screening device for soil testing allows soil to enter the screening frame. A vibrating motor drives the connecting frame, causing the screening frame to vibrate. The deformation of the spring provides space for the vibration, allowing the soil to fall from the upper screening frame to the lower screening frame for multiple screenings, thus enabling the screening of soil particles of different sizes. Attached Figure Description

[0015] Figure 1 is a front view of the structure of this utility model;

[0016] Figure 2 is a schematic diagram of the front sectional view of the present invention;

[0017] Figure 3 is a side sectional view of the present invention.

[0018] In the diagram: 1. Screening box; 2. Vertical plate; 3. Lead screw; 4. First motor; 5. Threaded plate; 6. Connecting pipe; 7. Hopper; 8. Conveying pipe; 9. Rotating shaft; 10. Second motor; 11. Spiral blade; 12. Discharge pipe; 13. Fixing frame; 14. Spring; 15. Connecting frame; 16. Screening frame; 17. Vibrating motor; 18. Receiving box. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Referring to Figures 1-3, this utility model provides a technical solution: a soil sieving device for soil testing, including a sieving box 1. A rectangular groove is formed on the top outer surface of the sieving box 1. Vertical plates 2 are fixedly connected to the four corners of the rectangular groove on the top outer surface of the sieving box 1. A rotating screw 3 rotates between two of the vertical plates 2. A first motor 4 is fixedly installed on the outer surface of one of the vertical plates 2. The output end of the first motor 4 is fixedly connected to the screw 3. A threaded plate 5 is threadedly connected to the outer surface of the screw 3. A connecting pipe 6 is fixedly passed through the outer surface of the threaded plate 5. A hopper 7 is fixedly connected to the top outer surface of the connecting pipe 6, and a conveying pipe 8 is fixedly connected to the bottom outer surface of the connecting pipe 6. A second motor 10 is fixedly installed on the outer surface of the conveying pipe 8. The output end of the second motor 10 is fixedly connected to a rotating shaft 9. The outer surface of the rotating shaft 9 is wound with spiral blades 11. The bottom of the conveying pipe 8 is fixedly connected to multiple discharge pipes 12. Specifically, the soil to be screened is conveyed into the hopper 7. The soil enters the conveying pipe 8 through the hopper 7 and the connecting pipe 6. The second motor 10 drives the rotating shaft 9 to rotate. The rotation of the rotating shaft 9 drives the spiral blades 11 to rotate, conveying the soil. The soil is discharged through the discharge pipes 12 and enters the screening box 1. The first motor 4 drives the lead screw 3 to rotate. The lead screw 3 drives the threaded plate 5 to move, which in turn drives the discharge pipes 12 to move, so that the soil enters the screening box 1 evenly. Therefore, when the soil is input, it can be evenly distributed in the screening box 1, so that the soil can be screened evenly and fully in the subsequent process.

[0022] In this embodiment, two fixed frames 13 are fixedly connected to the inner surface of the screening box 1. Springs 14 are fixedly connected to the top four corners of the fixed frames 13. A connecting frame 15 is fixedly connected to the top outer surface of the springs 14. A screening frame 16 is provided inside the connecting frame 15. A vibration motor 17 is installed on the outer surface of the connecting frame 15. Specifically, when soil enters the screening frame 16, the vibration motor 17 works, driving the connecting frame 15 to cause the screening frame 16 to vibrate. The deformation of the springs 14 provides space for the vibration, and the soil from the upper screening frame 16 falls onto the lower screening frame 16 for multiple screening, thereby enabling the screening of soil with different particle sizes.

[0023] In this embodiment, the middle of the fixed frame 13 is hollow, and a receiving box 18 is movably provided on the bottom outer surface of the screening box 1. Specifically, the screened soil is discharged from the hollow part and enters the receiving box 18 for collection.

[0024] In this embodiment, screening holes are provided on the outer surfaces of both screening frames 16. The diameter of the lower screening hole is smaller than that of the upper screening hole. Specifically, the screening frames 16 with screening holes of different diameters are used to screen soil particles of different sizes.

[0025] In this embodiment, a sliding rod is fixedly connected between the two vertical plates 2, and the threaded plate 5 is movably sleeved on the outside of the sliding rod. Specifically, when the threaded plate 5 moves, it slides on the outer surface of the sliding rod, so that the threaded plate 5 moves in a stable linear motion, preventing the threaded plate 5 from rotating with the rotation of the lead screw 3.

[0026] In this embodiment, a sealing plate is provided on the outer surface of the screening box 1, and the screening frame 16 is movably inserted into the inside of the connecting frame 15. The sealing plate corresponds to the screening frame 16. Specifically, by opening the sealing plate, the screening frame 16 can be pulled out, thereby discharging the soil remaining inside the screening frame 16.

[0027] In this embodiment, limit rods are fixedly connected to the four bottom corners of the connecting frame 15. The limit rods movably penetrate the outer surface of the fixed frame 13. The spring 14 is sleeved on the outside of the limit rods. Specifically, the limit rods limit the spring 14 to prevent the spring 14 from tilting. When the connecting frame 15 vibrates, the limit rods slide on the fixed frame 13.

[0028] Working principle: In use, the soil to be screened is transported into the hopper 7. The soil enters the conveying pipe 8 through the hopper 7 and the connecting pipe 6. The second motor 10 drives the rotating shaft 9 to rotate, which in turn drives the spiral blades 11 to rotate, thus conveying the soil. The soil is discharged through the discharge pipe 12 and enters the screening box 1. The first motor 4 drives the lead screw 3 to rotate, which in turn drives the threaded plate 5 to move, thereby moving the discharge pipe 12. This ensures that the soil enters the screening box 1 evenly, allowing for uniform distribution of the soil during input and enabling thorough and uniform screening.

[0029] Soil enters the screening frame 16, and the vibration motor 17 works. The vibration motor 17 drives the connecting frame 15 to make the screening frame 16 vibrate. The deformation of the spring 14 provides space for the vibration. Soil from the upper screening frame 16 falls onto the lower screening frame 16 for multiple screening, thereby enabling the screening of soil of different particle sizes.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil screening device for soil testing comprising a screening box (1), characterised in that: The top outer surface of the screening box (1) is provided with a rectangular groove. Vertical plates (2) are fixedly connected to the four corners of the rectangular groove on the top outer surface of the screening box (1). A screw rod (3) rotates between the two vertical plates (2). A first motor (4) is fixedly installed on the outer surface of one of the vertical plates (2). The output end of the first motor (4) is fixedly connected to the screw rod (3). A threaded plate (5) is threadedly connected to the outer surface of the screw rod (3). A connecting pipe (6) is fixedly passed through the outer surface of the threaded plate (5). A hopper (7) is fixedly connected to the top outer surface of the connecting pipe (6). A conveying pipe (8) is fixedly connected to the bottom outer surface of the connecting pipe (6). A second motor (10) is fixedly installed on the outer surface of the conveying pipe (8). A rotating shaft (9) is fixedly connected to the output end of the second motor (10). A spiral blade (11) is wound around the outer surface of the rotating shaft (9). Multiple discharge pipes (12) are fixedly connected to the bottom of the conveying pipe (8).

2. The soil screening device for soil testing according to claim 1, characterized in that: The inner surface of the screening box (1) is fixedly connected to two fixed frames (13). Springs (14) are fixedly connected to the top four corners of the fixed frames (13). A connecting frame (15) is fixedly connected to the top outer surface of the springs (14). A screening frame (16) is set inside the connecting frame (15). A vibration motor (17) is installed on the outer surface of the connecting frame (15).

3. The soil screening device for soil testing according to claim 2, characterized in that: The middle of the fixed frame (13) is hollow, and the bottom outer surface of the screening box (1) is movably provided with a receiving box (18).

4. The soil screening device for soil testing of claim 2, wherein: Both of the filter frames (16) have filter holes on their outer surfaces, with the lower filter hole having a smaller diameter than the upper filter hole.

5. The soil screening device for soil testing of claim 1, wherein: The other two vertical plates (2) are fixedly connected to a sliding rod, and the threaded plate (5) is movably sleeved on the outside of the sliding rod.

6. The soil screening device for soil testing of claim 2, wherein: The outer surface of the screening box (1) is provided with a closed plate, and the screening frame (16) is movably inserted into the inside of the connecting frame (15). The closed plate corresponds to the screening frame (16).

7. A soil screening device for soil testing according to claim 2, characterized in that: Limiting rods are fixedly connected to the four bottom corners of the connecting frame (15). The limiting rods movably pass through the outer surface of the fixed frame (13), and the spring (14) is sleeved on the outside of the limiting rods.

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