Ecological and environment-friendly soil screening device

Abstract

The invention relates to the technical field of soil detection, and discloses an ecological environment-friendly soil screening device which comprises a box body, the top and the bottom of the box body are open, a material protection ring is fixedly connected to the inner side of the bottom of the box body, a fixing rod is fixedly connected to the inner wall of the material protection ring, and a motor is fixedly connected to the end, away from the inner wall of the material protection ring, of the fixing rod. The upper end of the motor is fixedly connected with a rotating shaft, the lower end of the rotating shaft is fixedly connected with a dust cover, and the bottom of the box body is fixedly connected with three supporting legs. Materials firstly reach the crushing mechanism through the feeding plate, and the motor rotates to drive the rotating shaft to rotate.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection equipment, and particularly to an ecological and environment-friendly soil screening device. Background Technique

[0002] Soil testing is a systematic process, including the collection, testing, and application of test results of test samples. According to soil test results and other relevant information, soil fertility can be evaluated to provide a basis for rational fertilization. Methods for quickly determining the content of available nutrients closely related to plant nutrient status and certain chemical properties in soil usually include items such as available nitrogen, phosphorus, potassium, soil pH value, and related soil lime requirements. The soil rapid drying and screening device for soil detection should include the functions of rapid drying and screening.

[0003] Currently, the soil rapid drying and screening device for soil detection adopts a traditional screening method. The traditional screening method uses gear meshing and it is difficult to collect and detect soils with different properties such as easy caking and hard soil texture. In the screening device of the prior art, during the process of the gear crushing the softer soil, the gears can only extrude and crush the soil, and cannot crush the soil in multiple directions such as kneading. As a result, the soil sample after extrusion becomes more compact. Therefore, it is impossible to screen the caked soil after pulverization, and the caked soil is discharged as impurities, thus making the soil detection sample incomplete and resulting in inaccurate test results. Summary of the Invention

[0004] The purpose of the present invention is to provide an ecological and environment-friendly soil screening device to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is an ecological and environment-friendly soil screening device, including a box body. The top and bottom of the box body are both open. Inside the bottom of the box body, there is a fixed connection with a material protection ring. On the inner wall of the material protection ring, there is a fixed connection with a fixed rod. The end of the fixed rod far from the inner wall of the material protection ring is fixedly connected with a motor. The upper end of the motor is fixedly connected with a rotating shaft. The lower end of the rotating shaft is fixedly connected with a dust-proof cover. The bottom of the box body is fixedly connected with three support legs. It also includes: A feeding mechanism, which includes a feeding plate arranged on the box body. The box body and the feeding plate are rotatably connected through a hinge. The inner wall at the top of the box body is fixedly connected with a side inclined plate. The side of the feeding plate far from the hinge is fixedly connected with a pushing frame; A crushing mechanism, which includes a rolling telescopic rod fixedly connected to the upper part of the inner wall of the box body. The end of the rolling telescopic rod far from the inner wall of the box body is fixedly connected with a rolling spring. The end of the rolling spring far from the inner wall of the box body is fixedly connected with a moving block; Among them, one end of the moving block close to the rolling spring is fixedly connected with a transverse extrusion head, and one end of the moving block away from the rolling spring is fixedly connected with a rolling base. A chute is arranged on the side of the rolling base away from the moving block, and the rolling base is slidably connected with the pressing and rubbing plate. Longitudinal extrusion heads are fixedly connected to both the front and rear ends of the pressing and rubbing plate, and a number of pressure balls are rollingly embedded in the middle of the pressing and rubbing plate.

[0006] Further, a cleaning mechanism is arranged on the inner wall of the rolling base. The cleaning mechanism includes a pressure spring fixedly connected to the inner wall of the rolling base; Among them, one end of the pressure spring away from the rolling base is fixedly connected with an auxiliary plate; a number of cleaning brush hairs are fixedly connected to the side of the auxiliary plate away from the pressure spring.

[0007] Further, a rough selection mechanism is arranged below the moving block. The rough selection mechanism includes a driving push rod fixedly connected to the lower end of the rolling base, and two large rotating columns are rotatably connected to the lower end of the driving push rod; Among them, baffle plates are rotatably connected to both the front and rear ends of the large rotating column, a diamond-shaped crushing net is rotatably connected to the inner side of the baffle plate, and a number of small rotating columns are rotatably connected to the lower end of the diamond-shaped crushing net.

[0008] Further, an impact mechanism is arranged above the rotating shaft. The impact mechanism includes a rotating impact frame fixedly connected to the upper end of the rotating shaft, a crushing impact head is fixedly connected to the upper end of the rotating impact frame, and a screening impact head is fixedly connected to the lower end of the rotating impact frame.

[0009] Further, a fine selection mechanism is arranged in the middle of the box body. The fine selection mechanism includes a vibrating telescopic rod fixedly connected to the inner wall of the box body. One end of the vibrating telescopic rod away from the inner wall of the box body is fixedly connected with a sieve plate through a spring, and two vibrating semi-circular blocks are fixedly connected to the side of the sieve plate.

[0010] Further, the fine selection mechanism further includes a number of impurity discharge holes arranged on the side of the sieve plate, a number of sieve holes are arranged at the bottom of the sieve plate, a rotating fan is fixedly connected to the middle of the rotating shaft, and a collision semi-circular block is arranged at the bottom of the sieve plate.

[0011] Further, an anti-blocking mechanism is arranged above the dust-proof cover. The anti-blocking mechanism includes an impact spring fixedly connected to the upper end of the dust-proof cover, and a rotating rod is fixedly connected to the upper end of the impact spring; Among them, the lower part of the rotating shaft is slidably connected with the rotating rod through a chute. A number of anti-blocking brush hairs are fixedly connected to the upper end of the rotating rod, and an impact semi-circular block is fixedly connected to the end of the rotating rod away from the rotating shaft.

[0012] Further, a discharge mechanism is arranged at the bottom of the box body. The discharge mechanism includes an impurity cleaning window arranged on the outer wall of the box body. The lower end of the material protection ring is fixedly connected with a discharge inclined plate, and an impurity storage bin is formed between the inner wall of the box body and the outer wall of the material protection ring.

[0013] The present invention has the following beneficial effects: (1) By arranging a crushing mechanism inside the box body in the present invention, after the soil passes through the feeding mechanism, the crushing impact head rotates, squeezing the transverse extrusion head, so that the pressing and rubbing plate transversely extrudes to drive the pressure ball to extrude inward, causing an extrusion and crushing effect on the caked soil. At the same time, the rotating extrusion of the crushing impact rotates and longitudinally extrudes the longitudinal extrusion head, causing the pressing and rubbing plate to move longitudinally. At this time, the two pressing and rubbing plates move towards each other, producing a back-and-forth rubbing effect. This crushing action greatly improves the crushing efficiency of the caked soil. At the same time, when the pressing and rubbing plate moves transversely, by driving the pushing frame, the feeding plate can rotate back and forth around the hinge, making the feeding smoother and improving the working rate of the device.

[0014] (2) Cleaning bristles are arranged inside the rolling mechanism in the present invention. When the rolling balls are squeezed and rubbed back and forth, under the action of the friction of the soil, the pressure balls will rotate. At this time, the pressure spring inside the rolling mechanism squeezes the auxiliary plate, making the cleaning bristles fully contact the pressure balls, causing the soil adhered to the pressure balls to fall off, thereby cleaning the pressure balls and avoiding blockage or uneven rolling due to excessive soil adhesion on the rolling balls, thus improving the working stability of the crushing mechanism.

[0015] (3) A rough selection mechanism is arranged below the crushing mechanism in the present invention. The longitudinal movement of the pressing and rubbing plate drives the push rod to move back and forth, thereby driving the diamond-shaped crushing net to deform, causing the diamond-shaped mesh holes to be squeezed, allowing the soil samples that meet the specifications to pass through, and causing the soil samples that do not meet the specifications to be crushed again. On the one hand, the screening effect is achieved, and on the other hand, the crushing reliability of the device is improved.

[0016] (4) A fine selection mechanism is arranged below the rough selection mechanism in the present invention. By rotating and squeezing the screening impact head through the screening impact head, the sieve tray swings back and forth along the vibration telescopic rod, thereby improving the screening efficiency. In addition, the motor drives the rotating fan on the rotating shaft to rotate, making the falling soil samples evenly distributed. At the same time, the rotating fan rotates to generate a downward wind force, increasing the contact area between the soil and the sieve tray. On the one hand, it is beneficial to the rapid drying of the soil samples, and on the other hand, it is beneficial to the rapid screening of the soil samples. A vibration semi-circular block is arranged at the bottom of the sieve tray. When the rotating shaft rotates to drive the impact semi-circular block on the rotating rod to impact the sieve tray, periodic vibration is generated, which is beneficial to the soil samples piled up on the sieve tray to fall through the sieve holes, avoiding blockage due to excessive soil samples piled up on the sieve tray, and improving the screening efficiency of the screening device.

[0017] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of the present box body; Figure 2 It is a schematic overall structure diagram of the material guiding mechanism of the present invention; Figure 3 It is a schematic overall structure diagram of the crushing mechanism of the present invention; Figure 4 It is a schematic overall structure diagram of the cleaning mechanism of the present invention; Figure 5 It is a schematic structure diagram of the auxiliary plate of the present invention; Figure 6 It is a schematic cross-sectional overall structure diagram of the present invention; Figure 7 It is a schematic structure diagram of the diamond-shaped crushing net of the present invention; Figure 8 It is a schematic overall structure diagram of the impact mechanism of the present invention; Figure 9 For the present invention Figure 8 An enlarged view of A; Figure 10 It is a schematic overall structure diagram of the selection mechanism of the present invention; Figure 11 It is a schematic overall structure diagram of the anti-blocking mechanism of the present invention; In the drawings, the list of components represented by each reference numeral is as follows: In the figure: 1. Box body; 11. Material protection ring; 12. Fixed rod; 13. Motor; 14. Rotating shaft; 15. Dust-proof cover; 16. Support leg; 2. Feeding mechanism; 201. Feeding plate; 202. Side inclined plate; 203. Pushing frame; 3. Crushing mechanism; 301. Crushing telescopic rod; 302. Crushing spring; 303. Moving block; 304. Transverse extrusion head; 305. Crushing base; 306. Rubbing plate; 307. Longitudinal extrusion head; 308. Pressure ball; 4. Cleaning mechanism; 401. Pressure spring; 402. Auxiliary plate; 403. Cleaning brush; 5. Coarse selection mechanism; 501. Driving push rod; 502. Large rotating column; 503. Baffle plate; 504. Diamond crushing net; 505. Small rotating column; 6. Impact mechanism; 601. Rotating impact frame; 602. Crushing impact head; 603. Screening impact head; 7. Fine selection mechanism; 701. Vibration telescopic rod; 702. Sieve plate; 703. Vibration semi-circular block; 704. Impurity discharge hole; 705. Screening hole; 706. Rotating fan; 707. Impacted semi-circular block; 8. Anti-blocking mechanism; 801. Impact spring; 802. Rotating rod; 803. Anti-blocking brush; 804. Impact semi-circular block; 9. Discharge mechanism; 901. Impurity cleaning window; 902. Discharge inclined plate; 903. Impurity storage bin. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1

[0022] Please refer to Figures 1-7 As shown in the figure, the present invention is an ecological and environmental-friendly soil screening device, including a box body 1. The top and bottom of the box body 1 are both open, and the purpose of this setting is to facilitate the entry and discharge of materials. A material protection ring 11 is fixedly connected to the inner side of the bottom of the box body 1. The purpose of this setting is to prevent the screened soil samples from spilling. A fixed rod 12 is fixedly connected to the inner wall of the material protection ring 11. The purpose of this setting is to facilitate the fixation of the motor 13. One end of the fixed rod 12 away from the inner wall of the material protection ring 11 is fixedly connected to the motor 13. The purpose of this setting is to provide external power. The upper end of the motor 13 is fixedly connected to a rotating shaft 14. The purpose of this setting is to facilitate the motor 13 to drive the rotating shaft 14 to rotate. The lower end of the rotating shaft 14 is fixedly connected to a dust-proof cover 15. The purpose of this setting is to facilitate dust-proofing of the motor 13. Three support legs 16 are fixedly connected to the bottom of the box body 1. The purpose of this setting is to facilitate the support of the box body 1. It also includes: The material guiding mechanism 2, the material guiding mechanism 2 includes a feeding plate 201 arranged on the box body 1. The purpose of this setting is to facilitate the entry of materials. The box body 1 and the feeding plate 201 are rotatably connected by a hinge. The purpose of this setting is to facilitate the feeding plate 201 to rotate back and forth around the hinge. The inner wall of the top of the box body 1 is fixedly connected with a side inclined plate 202. The purpose of this setting is to facilitate the material guiding effect of the feeding plate 201. One side of the feeding plate 201 away from the hinge is fixedly connected with a pushing frame 203. The purpose of this setting is to facilitate the pushing frame 203 to push the feeding plate 201 to rotate back and forth around the hinge; The crushing mechanism 3, the crushing mechanism 3 includes a rolling telescopic rod 301 fixedly connected to the upper part of the inner wall of the box body 1. The purpose of this setting is to facilitate the stretching effect of connecting the rolling spring 302. One end of the rolling telescopic rod 301 away from the inner wall of the box body 1 is fixedly connected with a rolling spring 302. The purpose of this setting is to facilitate the moving effect of connecting the moving block 303. One end of the rolling spring 302 away from the inner wall of the box body 1 is fixedly connected with a moving block 303. The purpose of this setting is to facilitate the moving effect of connecting the rolling base 305; Among them, one end of the moving block 303 close to the rolling spring 302 is fixedly connected with a transverse extrusion head 304. The purpose of this setting is to facilitate the transverse movement of the rolling base 305. One end of the moving block 303 away from the rolling spring 302 is fixedly connected with a rolling base 305. The purpose of this setting is to facilitate the moving effect of connecting the pressing and rubbing plate 306. A chute is arranged on one side of the rolling base 305 away from the moving block 303. The rolling base 305 is slidably connected with the pressing and rubbing plate 306. The purpose of this setting is to facilitate the pressing and rubbing plate 306 to slide along the direction of the chute. Longitudinal extrusion heads 307 are fixedly connected to both the front and rear ends of the pressing and rubbing plate 306. The purpose of this setting is to facilitate the longitudinal movement of the pressing and rubbing plate 306. A number of pressure balls 308 are rollingly embedded in the middle of the pressing and rubbing plate 306. The purpose of this setting is to facilitate the extrusion and crushing of the soil.

[0023] A cleaning mechanism 4 is arranged on the inner wall of the rolling base 305. The purpose of this setting is to facilitate the cleaning of the crushing mechanism 3. The cleaning mechanism 4 includes a pressure spring 401 fixedly connected to the inner wall of the rolling base 305. The purpose of this setting is to facilitate the extrusion of the auxiliary plate 402 so that the cleaning brush bristles 403 are in full contact with the pressure balls 308; Among them, one end of the pressure spring 401 away from the rolling base 305 is fixedly connected with an auxiliary plate 402. The purpose of this setting is to facilitate the setting of the cleaning brush bristles 403. A number of cleaning brush bristles 403 are fixedly connected to the side of the auxiliary plate 402 away from the pressure spring 401. The purpose of this setting is to facilitate the cleaning of the pressure balls 308.

[0024] A rough selection mechanism 5 is arranged below the moving block 303. The purpose of this setting is to facilitate further soil crushing. The rough selection mechanism 5 includes a driving push rod 501 fixedly connected to the lower end of the rolling base 305. The purpose of this setting is to facilitate the moving effect of connecting the large rotating column 502. The lower end of the driving push rod 501 is rotatably connected to two large rotating columns 502. The purpose of this setting is to facilitate the rotating effect of connecting the baffle plate 503. Both the front and rear ends of the large rotating column 502 are rotatably connected to a baffle plate 503. The purpose of this setting is to facilitate protecting the falling material from spilling. The inner side of the baffle plate 503 is rotatably connected to a diamond-shaped crushing net 504. The purpose of this setting is to facilitate further crushing of the material. The lower end of the diamond-shaped crushing net 504 is rotatably connected to a number of small rotating columns 505. The purpose of this setting is to facilitate assisting the deformation and crushing effect of the diamond-shaped crushing net 504.

[0025] Embodiment 2

[0026] The difference feature from Embodiment 1 is that; As Figures 1-11 shown, an impact mechanism 6 is arranged above the rotating shaft 14. The purpose of this setting is to facilitate the transmission of the power of the motor 13. The impact mechanism 6 includes a rotating impact frame 601 fixedly connected to the upper end of the rotating shaft 14. The purpose of this setting is to facilitate the rotating effect of connecting the crushing impact head 602. The upper end of the rotating impact frame 601 is fixedly connected to a crushing impact head 602. The purpose of this setting is to facilitate driving the movement of the crushing mechanism 3. The lower end of the rotating impact frame 601 is fixedly connected to a screening impact head 603. The purpose of this setting is to facilitate driving the movement of the fine selection mechanism 7.

[0027] A fine selection mechanism 7 is arranged in the middle of the box body 1. The purpose of this setting is to facilitate the screening and heat dissipation of the material. The fine selection mechanism 7 includes a vibrating telescopic rod 701 fixedly connected to the inner wall of the box body 1. The purpose of this setting is to facilitate connecting the box body 1 with the sieve tray 702. One end of the vibrating telescopic rod 701 away from the inner wall of the box body 1 is fixedly connected to a sieve tray 702 through a spring. The purpose of this setting is to facilitate the left and right horizontal swinging of the sieve tray 702. Two vibrating semi-circular blocks 703 are fixedly connected to the side of the sieve tray 702. The purpose of this setting is to facilitate the quick extrusion of the impact semi-circular block 804 and the vibrating semi-circular block 703 to cause the sieve tray 702 to vibrate; The selected mechanism 7 further includes a plurality of impurity discharge holes 704 provided on the side of the sieve tray 702. The purpose of this setting is to facilitate the discharge of impurities from the side of the sieve tray 702. A plurality of sieve holes 705 are provided at the bottom of the sieve tray 702. The purpose of this setting is to facilitate the passage of qualified materials. A rotating fan 706 is fixedly connected to the middle of the rotating shaft 14. The purpose of this setting is to facilitate the even spreading of materials. A semi-circular block 707 to be hit is provided at the bottom of the sieve tray 702. The purpose of this setting is to collide with the impact semi-circular block 804 to generate vibration.

[0028] An anti-blocking mechanism 8 is provided above the dust-proof cover 15. The purpose of this setting is to facilitate the blockage of the selected mechanism 7. The anti-blocking mechanism 8 includes an impact spring 801 fixedly connected to the upper end of the dust-proof cover 15. The purpose of this setting is to facilitate the extrusion effect of connecting the impact spring 801 and the rotating rod 802. The upper end of the impact spring 801 is fixedly connected to a rotating rod 802. The purpose of this setting is to facilitate the connection of the anti-blocking brush 803. Among them, the lower part of the rotating shaft 14 is slidably connected to the rotating rod 802 through a chute. The purpose of this setting is to facilitate the up and down sliding of the rotating rod 802 along the rotating shaft 14. A plurality of anti-blocking brushes 803 are fixedly connected to the upper end of the rotating rod 802. The purpose of this setting is to facilitate the cleaning of the bottom of the sieve tray 702. An impact semi-circular block 804 is fixedly connected to the end of the rotating rod 802 away from the rotating shaft 14. The purpose of this setting is to facilitate the extrusion of the semi-circular block 707 to be hit, causing the sieve tray 702 to vibrate.

[0029] A discharge mechanism 9 is provided at the bottom of the box body 1. The purpose of this setting is to facilitate the cleaning of materials. The discharge mechanism 9 includes an impurity cleaning window 901 provided on the outer wall of the box body 1. The purpose of this setting is to facilitate the cleaning of impurities. The lower end of the material protection ring 11 is fixedly connected to a discharge inclined plate 902. The purpose of this setting is to facilitate the discharge of materials that meet the specifications. The inner wall of the box body 1 and the outer wall of the material protection ring 11 form an impurity storage bin 903. The purpose of this setting is to facilitate the temporary storage of impurities.

[0030] A specific application of this embodiment is: When the device is needed for rapid soil drying and screening, the staff first starts the motor 13, and then gradually pours the soil sample to be tested into the feed inlet. The material first reaches the crushing mechanism 2 through the feed plate 201. The motor 13 rotates to drive the rotating shaft 14 to rotate. At the same time, the rotation of the rotating shaft 14 drives the rotating impact frame 601 and the crushing impact head 603 to rotate together. At this time, the crushing impact head 603 squeezes the transverse extrusion head 304 to cause the rolling base 305 to move horizontally, driving the two pressing plates 306 to move horizontally relative to each other, so that the pressure ball 308 squeezes and crushes the caked soil sample. At the same time, the crushing impact head 603 squeezes the longitudinal extrusion head 307, causing the two pressing plates 306 to move longitudinally relative to each other, so that the caked soil sample is longitudinally rubbed while being squeezed, fully crushing the caked soil sample. When the pressure ball 308 longitudinally rubs, under the influence of soil friction, the pressure ball 308 rolls, and the pressure ball 308 comes into full contact with the cleaning brush bristles, causing the soil adhered to the pressure ball 308 to fall off and fall together with the crushed soil sample onto the diamond-shaped crushing net 504. The moving block 303 moves back and forth horizontally, driving the push rod 501 to move back and forth horizontally, so that the baffle plate 503 rotates around the large rotating column 502, causing the diamond-shaped crushing net 504 to deform around the small rotating column 505. At this time, the soil sample that meets the specifications falls, and the soil sample that does not meet the specifications is squeezed and crushed on the diamond-shaped crushing net 504 until it meets the specifications and then falls onto the sieve plate 702 for further screening. The rotating shaft 14 rotates to drive the rotating fan 706 to rotate, spreading the soil sample piled up on the sieve plate evenly. At the same time, the rotating fan 706 rotates to generate a downward wind force, allowing the soil sample to come into full contact with the air, so that the soil sample dries quickly.

[0031] At the same time, the screening impact head 603 rotates and impacts the vibrating semi-circular block 703 to make the sieve plate produce a swinging effect, so that the soil sample on the sieve plate 702 can accelerate and fall through the sieve holes 705. Under the rotation of the rotating fan 706, the impurities will be discharged through the impurity discharge holes 704 and fall into the impurity storage bin 903. At this time, the rotating rod 802 rotates together with the rotating shaft 14, and the impact semi-circular block 804 quickly impacts the impacted semi-circular block 707, causing the sieve plate 702 to vibrate, so that the material accelerates through the sieve holes and then is discharged through the discharge inclined plate 902.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An ecological and environmentally friendly soil screening device, comprising a box body (1), the top and bottom of the box body (1) are both open, a material protection ring (11) is fixedly connected to the inner side of the bottom of the box body (1), a fixing rod (12) is fixedly connected to the inner wall of the material protection ring (11), one end of the fixing rod (12) far away from the inner wall of the material protection ring (11) is fixedly connected to a motor (13), the upper end of the motor (13) is fixedly connected to a rotating shaft (14), the lower end of the rotating shaft (14) is fixedly connected to a dust-proof cover (15), and three support legs (16) are fixedly connected to the bottom of the box body (1), characterized in that, It further includes: A material guiding mechanism (2), the material guiding mechanism (2) includes a feeding plate (201) arranged on the box body (1), the box body (1) and the feeding plate (201) are rotationally connected through a hinge, a side inclined plate (202) is fixedly connected to the inner wall of the top of the box body (1), and a pushing frame (203) is fixedly connected to the side of the feeding plate (201) away from the hinge; A crushing mechanism (3), the crushing mechanism (3) includes a rolling telescopic rod (301) fixedly connected to the upper part of the inner wall of the box body (1), one end of the rolling telescopic rod (301) away from the inner wall of the box body (1) is fixedly connected to a rolling spring (302), and one end of the rolling spring (302) away from the inner wall of the box body (1) is fixedly connected to a moving block (303); Wherein, a transverse extrusion head (304) is fixedly connected to one end of the moving block (303) close to the rolling spring (302), a rolling base (305) is fixedly connected to the end of the moving block (303) away from the rolling spring (302), a chute is opened on the side of the rolling base (305) away from the moving block (303), the rolling base (305) is slidably connected to a pressing and rubbing plate (306), longitudinal extrusion heads (307) are fixedly connected to both the front and rear ends of the pressing and rubbing plate (306), and a number of pressure balls (308) are rollingly embedded in the middle of the pressing and rubbing plate (306).

2. The ecological and environment-friendly soil screening device according to claim 1, wherein: A cleaning mechanism (4) is arranged on the inner wall of the rolling base (305), and the cleaning mechanism (4) includes a pressure spring (401) fixedly connected to the inner wall of the rolling base (305); Wherein, an auxiliary plate (402) is fixedly connected to one end of the pressure spring (401) away from the rolling base (305), and a number of cleaning bristles (403) are fixedly connected to the side of the auxiliary plate (402) away from the pressure spring (401).

3. An ecological and environmentally friendly soil screening device according to claim 2, characterized in that: A rough selection mechanism (5) is arranged below the moving block (303), and the rough selection mechanism (5) includes a driving push rod (501) fixedly connected to the lower end of the rolling base (305), and two large rotating columns (502) are rotatably connected to the lower end of the driving push rod (501); Wherein, baffle plates (503) are rotatably connected to both the front and rear ends of the large rotating column (502), a diamond-shaped crushing net (504) is rotatably connected to the inner side of the baffle plate (503), and a number of small rotating columns (505) are rotatably connected to the lower end of the diamond-shaped crushing net (504).

4. An ecological and environmentally friendly soil screening device according to claim 3, characterized in that: An impact mechanism (6) is arranged above the rotating shaft (14), and the impact mechanism (6) includes a rotating impact frame (601) fixedly connected to the upper end of the rotating shaft (14), a crushing impact head (602) is fixedly connected to the upper end of the rotating impact frame (601), and a screening impact head (603) is fixedly connected to the lower end of the rotating impact frame (601).

5. An ecological and environmentally friendly soil screening device according to claim 4, characterized in that: A selection mechanism (7) is provided in the middle of the box body (1). The selection mechanism (7) includes a vibrating telescopic rod (701) fixedly connected to the inner wall of the box body (1). One end of the vibrating telescopic rod (701) far from the inner wall of the box body (1) is fixedly connected to a sieve plate (702) through a spring. Two vibrating semi-circular blocks (703) are fixedly connected to the side of the sieve plate (702).

6. The ecological and environment-friendly soil screening device according to claim 5, characterized in that: The selection mechanism (7) further includes a number of impurity discharge holes (704) provided on the side of the sieve plate (702). A number of screening holes (705) are provided at the bottom of the sieve plate (702). A rotating fan (706) is fixedly connected to the middle of the rotating shaft (14). A semi-circular block to be hit (707) is provided at the bottom of the sieve plate (702).

7. An ecological and environmentally friendly soil screening device according to claim 6, characterized in that: An anti-blocking mechanism (8) is provided above the dust-proof cover (15). The anti-blocking mechanism (8) includes an impact spring (801) fixedly connected to the upper end of the dust-proof cover (15). The upper end of the impact spring (801) is fixedly connected to a rotating rod (802). Among them, the lower part of the rotating shaft (14) is slidably connected to the rotating rod (802) through a chute. A number of anti-blocking bristles (803) are fixedly connected to the upper end of the rotating rod (802). An impact semi-circular block (804) is fixedly connected to the end of the rotating rod (802) far from the rotating shaft (14).

8. An ecological and environmentally friendly soil screening device according to claim 7, characterized in that: A discharge mechanism (9) is provided at the bottom of the box body (1). The discharge mechanism (9) includes an impurity cleaning window (901) provided on the outer wall of the box body (1). A discharge inclined plate (902) is fixedly connected to the lower end of the material protection ring (11). An impurity storage bin (903) is formed by the inner wall of the box body (1) and the outer wall of the material protection ring (11).

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