Soil screening device

Abstract

The utility model discloses a soil screening device, relates to soil detection field, including frame, vibration screening mechanism and collecting mechanism, frame is provided with collecting mechanism, the top of collecting mechanism is provided with vibration screening mechanism, vibration screening mechanism includes bottom shell, bottom shell lower end is fixedly connected with spring mounting plate, the spring mounting plate is connected with the spring mounting plate. A fourth screen, a third screen, a second screen and a first screen are evenly distributed and fixedly connected in the bottom shell, a discharging pipe is fixedly connected in the first screen, a discharging partition plate is fixedly connected in the discharging pipe, a plurality of auxiliary screening mechanisms are arranged in the discharging pipe, and each auxiliary screening mechanism comprises a screening mounting plate. The soil screening device has the beneficial effects that through the auxiliary screening mechanism, after screening is finished, screened soil on a second screen and a third screen is gathered to open holes in a discharging pipe, and then the soil flows into a second-stage collecting shell and a first-stage collecting bin in the collecting mechanism through the discharging pipe.

Description

Technical Field

[0001] This utility model relates to the field of soil testing, and in particular to a soil screening device. Background Technology

[0002] Currently, soil pollutant testing requires on-site collection in advance. The collected soil may contain some impurities, such as small stones or other impurities. Therefore, the collected soil needs to be pretreated, air-dried, and impurities removed and sieved.

[0003] For example, patent document CN210279798U discloses a soil sieving device for soil testing. Its structure includes a frame, a hopper, a sieving mechanism, and a set of two vibrating motors. A fixing ring plate, positioning posts, and sieve plates with perforations are fixedly installed on the top of the frame. The diameter of the sieve plates decreases sequentially from top to bottom, and the sieve plates are engaged via corresponding steps. Multiple sieve plates are directly introduced into a cylindrical fixing tube through the positioning posts, and the entire assembly is achieved through a step-by-step assembly method. Using the positioning posts, the device containing sieve plates of different particle sizes can be lifted out at once.

[0004] The aforementioned patented technology enables the device to extract and store sieve plates of different particle sizes at once, but after extraction, other materials still need to be manually extracted for collection, so there is still room for improvement in terms of efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a soil screening device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A soil screening device includes a frame, a vibrating screening mechanism, and a collecting mechanism. The collecting mechanism is mounted on the frame, and the vibrating screening mechanism is mounted at the top of the collecting mechanism. The vibrating screening mechanism includes a bottom shell, a spring mounting plate fixedly connected to the lower end of the bottom shell, and a fourth screen, a third screen, a second screen, and a first screen evenly distributed and fixedly connected inside the bottom shell. A discharge pipe is fixedly connected inside the first screen, and a discharge baffle is fixedly connected inside the discharge pipe. Multiple auxiliary screening mechanisms are arranged inside the discharge pipe, each auxiliary screening mechanism including a screening mounting plate fixedly connected inside the discharge pipe. A screening toothed ring is rotatably connected to the screening mounting plate, a drive wheel is rotatably connected to the screening mounting plate, a servo motor mounting plate is fixedly connected to the screening mounting plate, and a servo motor is fixedly connected to the servo motor mounting plate. The output shaft of the servo motor is fixedly connected to the drive wheel. A semi-annular slide is fixedly connected to the bottom end of the screening toothed ring, a discharge brush is fixedly connected to the bottom end of the semi-annular slide, and a discharge baffle is fixedly connected to one side of the inner wall of the semi-annular slide.

[0008] Preferably, a bottom outer shell is fixedly connected to a shell support plate at its top, a top outer shell is fixedly connected to the top of the shell support plate, a feed pipe is fixedly connected to the top of the top outer shell, multiple guide rail mounting plates are fixedly connected to the inner side of the top of the top outer shell, multiple motors are fixedly connected to the inner side of the top of the top outer shell, guide rails are fixedly connected inside the guide rail mounting plates, sliders are slidably connected to the guide rails, a lead screw is fixedly connected to the output end of the motor, a lifting lug is threaded to the lower end of the lead screw, the lifting lug is fitted onto the shell support plate, a first screen partition is fixedly connected to the slider and the lifting lug, and multiple vibration motors are fixedly connected to the bottom end of the spring mounting plate.

[0009] Preferably, the frame includes a base plate, a plurality of support columns are fixedly connected to the top of the base plate, a top plate is fixedly connected to the top of the support columns, a plurality of limiting platforms are fixedly connected to the top of the top plate, a telescopic column is fixedly connected to the top of the limiting platform, a spring is fixedly connected to the top of the limiting platform, the spring is sleeved on the telescopic column, and the top of the telescopic column is fixedly connected to the spring mounting plate.

[0010] Preferably, the collection mechanism includes a secondary collection shell, a secondary collection chamber slidably connected to the inner side of the bottom of the secondary collection shell, a primary collection shell fixedly connected to the top of the secondary collection shell, a primary collection chamber slidably connected to the inner side of the bottom of the primary collection shell, and a collection plate fixedly connected to the top of the primary collection shell.

[0011] Preferably, the fourth, third, second, and first screens are conical screens with inwardly narrowed openings, the fourth, third, and second screens are concave in the middle, and the first screen is convex upward.

[0012] Preferably, the top of the brush is fixedly connected to the semi-circular slide, and the bottom of the brush has a certain angle.

[0013] The beneficial effect is that, through the auxiliary screening mechanism, after screening, the screened soil still on the second and third screens can be automatically collected at the opening on the discharge pipe. Then, the soil will flow through the discharge pipe into the secondary collection shell and the primary collection bin in the collection mechanism.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is an isometric view of a soil screening device according to the present invention;

[0017] Figure 2 This is an isometric half-sectional view of a soil screening device according to the present invention;

[0018] Figure 3 This is a cross-sectional view of the vibrating screening mechanism of a soil screening device according to the present invention;

[0019] Figure 4 This is a partial isometric half-section view of the vibrating screening mechanism of the soil screening device described in this utility model;

[0020] Figure 5 This utility model describes a soil screening device. Figure 4 Enlarged view of the structure at point A in the middle;

[0021] Figure 6 This is an isometric view of the auxiliary screening mechanism of the soil screening device described in this utility model;

[0022] Figure 7 This is an isometric half-sectional view of the collection mechanism of the soil screening device described in this utility model.

[0023] The reference numerals in the attached drawings are explained as follows: 101, base plate; 102, support column; 103, top plate; 104, limiting platform; 105, telescopic column; 106, spring; 201, bottom outer shell; 202, spring mounting plate; 203, fourth screen; 204, third screen; 205, second screen; 206, first screen; 207, top outer shell; 208, feed pipe; 209, guide rail mounting plate; 210, guide rail; 211, motor; 212, lead screw; 213, lifting lug; 214. 215. Outer shell support plate; 216. Discharge pipe; 217. Discharge baffle; 218. Slider; 219. First screen baffle; 301. Screening mounting plate; 302. Screening gear ring; 303. Servo mounting plate; 304. Servo; 305. Semi-circular slide; 306. Discharge baffle; 307. Discharge brush; 308. Drive wheel; 4. Vibration motor; 501. Primary collection shell; 502. Secondary collection shell; 503. Collection plate; 504. Primary collection bin; 505. Secondary collection bin. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-7 As shown, a soil screening device includes a frame, a vibrating screening mechanism, and a collection mechanism. The collection mechanism is mounted on the frame, and the vibrating screening mechanism is mounted at the top of the collection mechanism. The vibrating screening mechanism includes a bottom outer shell 201, with a spring mounting plate 202 welded to the lower end of the bottom outer shell 201. A fourth screen 203, a third screen 204, a second screen 205, and a first screen 206 are evenly distributed and welded inside the bottom outer shell 201. A discharge pipe 215 is welded inside the first screen 206, and a discharge baffle 216 is welded inside the discharge pipe 215. Two auxiliary screening mechanisms are arranged inside the discharge pipe 215. Each auxiliary screening mechanism includes a screening mounting plate 301, which is bolted to the inside of the discharge pipe 215. A screening toothed ring 302 is rotatably connected to the screening mounting plate 301, and a drive wheel 308 is rotatably connected to the screening mounting plate 301. A servo motor mounting plate 303 is bolted to the upper part of the servo motor mounting plate 303, and a servo motor 304 is bolted to the servo motor mounting plate 303. The output shaft of the servo motor 304 is fixedly connected to the drive wheel 308. A semi-annular slide 305 is welded to the bottom end of the screening gear ring 302. A discharge brush 307 is bolted to the bottom end of the semi-annular slide 305. A discharge baffle 306 is welded to one side of the inner wall of the semi-annular slide 305. After the soil enters, the screening gear ring 302 is in the initial state during the screening process. The discharge baffle 306 blocks the opening of the discharge pipe 215. After the screening is completed, the screening gear ring 302 rotates, which drives the semi-annular slide 305 to rotate. The rotation of the semi-annular slide 305 drives the rotation of the discharge baffle 306 and the discharge brush 307. After the discharge baffle 306 rotates, the soil on the opening side flows into the discharge pipe 215. The soil on the opening side will be pushed to the opening side by the rotation of the discharge brush 307.

[0028] A bottom outer shell 201 has a shell support plate 214 welded to its top. A top outer shell 207 is welded to the top of the shell support plate 214. A feed pipe 208 is welded to the top of the top outer shell 207. Four guide rail mounting plates 209 are welded to the inner side of the top of the top of the top outer shell 207. Four motors 211 are bolted to the inner side of the top of the top of the top of the top outer shell 207. Guide rails 210 are welded inside the guide rail mounting plates 209. A slider 217 is slidably connected to the guide rails 210. A lead screw 212 is keyed to the output end of the motor 211. A lifting lug 213 is threaded to the lower end of the lead screw 212. The lifting lug 213 is fitted onto the shell support plate 214. The slider 217 and the lifting lug 217... The first screen partition 218 is welded to the top of the 3. Four vibrating motors 4 are bolted to the bottom of the spring mounting plate 202. After the soil enters the system through the feed pipe 208, it is first screened on the first screen 206. During this process, the soil is separated from grass and stones. After screening, grass and stones are excluded. Then, the motor 211 starts and drives the lead screw 212 to rotate, causing the first screen partition 218 to be lifted. At this time, stones and grass are discharged. Then, the soil continues to enter the second screen 205. Under the continuous vibration, the soil passes through the third screen 204 and the fourth screen 203 in sequence and finally falls into the collection mechanism.

[0029] The frame includes a base plate 101, four support columns 102 are welded to the top of the base plate 101, a top plate 103 is welded to the top of the support columns 102, four limiting platforms 104 are welded to the top of the top plate 103, and telescopic columns 105 are welded to the top of the limiting platforms 104. The telescopic columns 105 are formed by two columns slidingly nested together. A spring 106 is welded to the top of the limiting platforms 104. The spring 106 is sleeved on the telescopic columns 105. The top of the telescopic columns 105 is welded to the spring mounting plate 202. After the motor is started, the vibrating screening mechanism and the collecting mechanism will start to vibrate and perform screening work.

[0030] The collection mechanism includes a secondary collection shell 502, a secondary collection chamber 505 slidably connected to the inner side of the bottom end of the secondary collection shell 502, a primary collection shell 501 welded to the top end of the secondary collection shell 502, a primary collection chamber 504 slidably connected to the inner side of the bottom end of the primary collection shell 501, and a collection plate 503 welded to the top end of the primary collection shell 501.

[0031] The fourth screen 203, the third screen 204, the second screen 205, and the first screen 206 are conical screens with inwardly narrowed openings. The fourth screen 203, the third screen 204, and the second screen 205 are concave downwards in the middle, while the first screen 206 is convex upwards. The first screen 206 can perform preliminary screening of soil containing grass, wood, and stones. After screening, the first screen partition 218 is lifted, and the grass, wood, and stones will flow directly out of the entire machine. The screened soil will flow into the next stage of screening mechanism.

[0032] The top of the discharge brush 307 is bolted to the semi-circular slide 305. It is a brush with a certain angle at the bottom. The sieved soil can be pushed into the discharge pipe 215 by the brush at a certain angle.

[0033] Working principle: Soil is introduced into feed pipe 208, then vibration motor 4 is started. Soil undergoes preliminary separation on first screen 206, separating grass and stones. Soil passing through first screen 206 flows into second screen 205. Through step-by-step screening, soil finally flows into fourth screen 203 and finally reaches primary collection bin 504. After the screening process is completed, the motor 211 starts, driving the lead screw 212 to rotate, which in turn lifts the first screen partition 218, and the grass and stones flow out of the machine. During the screening process, the screening tooth ring 302 remains in its initial state, and the discharge baffle 306 closes the opening of the discharge pipe 215. After screening is completed, the screening tooth ring 302 starts to rotate, driving the semi-annular slide 305 to rotate as well. The rotation of the semi-annular slide 305 drives the discharge baffle 306 and the discharge brush 307 to rotate. The discharge baffle 306 rotates to the opening side, allowing the soil to flow into the discharge pipe 215, while the soil on the opening side is pushed to that side by the discharge brush 307. The soil on the second screen 205 and the third screen 204 flows into the secondary collection bin 505.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A soil screening device, comprising a frame, a vibrating screening mechanism, and a collection mechanism, characterized in that: The frame is equipped with the collection mechanism, and the top of the collection mechanism is equipped with the vibrating screening mechanism. The vibrating screening mechanism includes a bottom shell (201), and a spring mounting plate (202) is fixedly connected to the lower end of the bottom shell (201). A fourth screen (203), a third screen (204), a second screen (205), and a first screen (206) are evenly distributed and fixedly connected inside the bottom shell (201). A discharge pipe (215) is fixedly connected inside the first screen (206), and a discharge baffle (216) is fixedly connected inside the discharge pipe (215). Multiple auxiliary screening mechanisms are provided inside the discharge pipe (215), and each auxiliary screening mechanism includes a screening mounting plate (301). A plate (301) is fixedly connected inside the discharge pipe (215). A screening toothed ring (302) is rotatably connected to the screening mounting plate (301). A drive wheel (308) is rotatably connected to the screening mounting plate (301). A servo motor mounting plate (303) is fixedly connected to the screening mounting plate (301). A servo motor (304) is fixedly connected to the servo motor mounting plate (303). The output shaft of the servo motor (304) is fixedly connected to the drive wheel (308). A semi-annular slide (305) is fixedly connected to the bottom end of the screening toothed ring (302). A discharge brush (307) is fixedly connected to the bottom end of the semi-annular slide (305). A discharge baffle (306) is fixedly connected to one side of the inner wall of the semi-annular slide (305).

2. The soil screening device according to claim 1, characterized in that: The bottom outer shell (201) is fixedly connected to the top of the outer shell support plate (214). The top of the outer shell support plate (214) is fixedly connected to the top of the top outer shell (207). The top of the top outer shell (207) is fixedly connected to the top of the top outer shell (207). Multiple guide rail mounting plates (209) are fixedly connected to the inner side of the top of the top of the top outer shell (207). Multiple motors (211) are fixedly connected to the inner side of the top of the top of the top outer shell (207). Guide rails are fixedly connected inside the guide rail mounting plates (209). (210), a slider (217) is slidably connected on the guide rail (210), a lead screw (212) is fixedly connected to the output end of the motor (211), a lifting lug (213) is threadedly connected to the lower end of the lead screw (212), the lifting lug (213) is sleeved on the outer shell support plate (214), a first screen partition plate (218) is fixedly connected to the slider (217) and the lifting lug (213), and a plurality of vibration motors (4) are fixedly connected to the bottom end of the spring mounting plate (202).

3. The soil screening device according to claim 1, characterized in that: The frame includes a base plate (101), a plurality of support columns (102) are fixedly connected to the top of the base plate (101), a top plate (103) is fixedly connected to the top of the support columns (102), a plurality of limiting platforms (104) are fixedly connected to the top of the top plate (103), a telescopic column (105) is fixedly connected to the top of the limiting platform (104), a spring (106) is fixedly connected to the top of the limiting platform (104), the spring (106) is sleeved on the telescopic column (105), and the top of the telescopic column (105) is fixedly connected to the spring mounting plate (202).

4. A soil screening device according to claim 1, characterized in that: The collection mechanism includes a secondary collection shell (502), a secondary collection chamber (505) is slidably connected to the inner side of the bottom end of the secondary collection shell (502), a primary collection shell (501) is fixedly connected to the top end of the secondary collection shell (502), a primary collection chamber (504) is slidably connected to the inner side of the bottom end of the primary collection shell (501), and a collection plate (503) is fixedly connected to the top end of the primary collection shell (501).

5. A soil screening device according to claim 1, characterized in that: The fourth screen (203), the third screen (204), the second screen (205) and the first screen (206) are conical screens with inwardly narrowed openings. The fourth screen (203), the third screen (204) and the second screen (205) are concave downwards in the middle, and the first screen (206) is convex upwards.

6. A soil screening device according to claim 1, characterized in that: The top end of the discharge brush (307) is fixedly connected to the semi-annular slide (305), and the discharge brush (307) is a brush with a certain angle at the bottom end.

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