Earthworm screening device for mine soil remediation

Abstract

The invention relates to the technical field of screening devices, in particular to an earthworm screening device for mine soil remediation, which comprises an operating table, a first screening mechanism is mounted at the position, close to the middle, of the upper end of the operating table, second screening mechanisms are mounted on two sides of the operating table, and a collecting mechanism is mounted at the front end of the operating table. The first screening mechanism comprises a fixing plate fixedly connected with the operation table, a motor is installed on one side of the fixing plate, an output shaft of the motor is fixedly connected with a first rotating shaft, the first rotating shaft penetrates through the operation table, and through mutual cooperation of a third rotating shaft and a connecting rod, a filtering frame shakes through a first spring; and through mutual cooperation of a second synchronous belt and a conveying rod, the earthworms falling from the upper portion are received during circulating rotation, the screening amount of the earthworms is increased, the production efficiency is improved, through the design of the double-layer conveying rod, the earthworms can be prevented from falling again, and therefore the earthworms are recycled more comprehensively.

Description

Technical Field

[0001] The invention relates to the technical field of screening devices, in particular to an earthworm screening device for mine soil remediation. Background Art

[0002] The development of mineral resources will cause mining environmental problems, seriously affecting the ecological environment around the mining area, and making the mine environmental restoration work very arduous and arduous. The soil remediation process is slow. In order to better repair the contaminated soil in mines, earthworms will be used for soil remediation.

[0003] After breeding, earthworms need to be screened out from the soil in the breeding bed. When screening, a screening machine is used to separate the earthworms and the soil. When the earthworms are screened by the filter, some of the earthworms will pass through the filter and mix with the soil again, reducing the screening efficiency. For this reason, we propose an earthworm screening device for mine soil remediation. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes an earthworm screening device for mine soil remediation.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a device for screening earthworms for mine soil remediation, comprising an operating table, a first screening mechanism is installed at the upper end of the operating table near the middle, second screening mechanisms are installed on both sides of the operating table, a collecting mechanism is installed at the front end of the operating table, the first screening mechanism includes a fixed plate fixedly connected to the operating table, a motor is installed on one side of the fixed plate, the output shaft of the motor is fixedly connected to a first rotating shaft, the first rotating shaft passes through the operating table, and the first rotating shaft is rotatably connected to the inner side of the operating table.

[0006] Preferably, one end of the first rotating shaft is fixedly connected to an eccentric plate, one side of the eccentric plate is fixedly connected to a second rotating shaft, the outer side of the second rotating shaft is rotatably connected to a connecting rod, the inner side of the connecting rod near the front end is rotatably connected to a third rotating shaft, the outer side of the third rotating shaft is rotatably connected to two groups of symmetrical first fixed blocks, and the upper ends of the two groups of the first fixed blocks are commonly fixedly connected to a filter frame.

[0007] Preferably, two groups of symmetrical first connecting blocks are fixedly connected on both sides of the filter frame, the lower ends of the two groups of the first connecting blocks are fixedly connected to the first springs, the other ends of the two groups of the first springs are fixedly connected to the second connecting blocks, and the adjacent sides of the two groups of the second connecting blocks are fixedly connected to the operating table.

[0008] Preferably, the second screening mechanism includes two groups of symmetrical first gears, the two groups of first gears are fixedly connected to the outer side of the eccentric plate, and the ends of the two groups of first gears that are close to each other are in contact with the operating table, the outer side of the first gear is rotatably connected to the first synchronous belt, the inner side of the first synchronous belt is rotatably connected to the second gear, the inner side of the second gear is fixedly connected to a fourth rotating shaft, one end of the second gear on the outer side of the fourth rotating shaft is rotatably connected to the second fixed block, the lower end of the second fixed block is fixedly connected to the operating table, the fourth rotating shaft passes through the second fixed block, and the other side of the second fixed block on the outer side of the fourth rotating shaft is rotatably connected to the second synchronous belt through a latch tooth, and the close sides of the two groups of the second synchronous belts are commonly fixedly connected to multiple groups of conveying rods, and the inner side of the conveying rod is rotatably connected to a fifth rotating shaft near the front end, and the two groups of the fifth rotating shafts are rotatably connected to a collecting box through the rotating shaft, a water filter net is provided on the inner side of the collecting box, and the rear end of the collecting box is fixedly connected to the operating table.

[0009] Preferably, the collecting mechanism includes a third synchronous belt rotatably connected to one of the two groups of first gears, the inner side of the third synchronous belt is rotatably connected to the third gear, one end of the third gear is fixedly connected to the sixth rotating shaft, the sixth rotating shaft is rotatably connected to the inner side of the collecting box, one end of the sixth rotating shaft is fixedly connected to the first sliding rod, the outer side of the first sliding rod is fixedly connected to two groups of symmetrical clips, the outer side of the first sliding rod is slidably connected to the seventh rotating shaft, and the outer side of the seventh rotating shaft is fixedly connected to multiple groups of sweeping rods.

[0010] Preferably, the upper end of the sweep rod is fixedly connected with a C-shaped hook, and the C-shaped hook is made of soft rubber material.

[0011] Preferably, one end of the seventh rotating shaft is fixedly connected to a connecting shaft, a sliding groove is opened on the outer side of the connecting shaft, the sliding groove surrounds the outer side of the connecting shaft, the sliding groove is designed at an oblique angle, the outer side of the connecting shaft is slidably connected to a sleeve, the outer side of the sleeve is fixedly connected to the collection box, the inner wall of the sleeve is fixedly connected to a second sliding rod, and the second sliding rod is slidably connected to the inner side of the sliding groove.

[0012] Preferably, the other end of the connecting shaft is fixedly connected to a third sliding rod, the outer side of the third sliding rod is slidably connected to the sleeve, the other end of the third sliding rod is fixedly connected to a limiting block, a second spring is arranged inside the sleeve outside the third sliding rod, one end of the second spring is fixedly connected to the connecting shaft, and the other end of the second spring is fixedly connected to the third sliding rod.

[0013] Preferably, an air pipe is installed on the inner side of the collecting box near the rear end.

[0014] Preferably, blades are rotatably connected to the inner side of the collection box near the upper end via a rotating shaft, and a spray head is provided in front of the inner blades of the collection box.

[0015] Compared with the prior art, the present invention provides an earthworm screening device for mine soil remediation, which has the following beneficial effects: 1. Through the cooperation between the third rotating shaft and the connecting rod, the filter frame uses the first spring to generate shaking, thereby separating the soil and earthworms. Through the cooperation between the second synchronous belt and the conveying rod, the earthworms falling from above are caught during the circular rotation, thereby increasing the screening amount of earthworms and improving production efficiency. The double-layer conveying rod design can prevent earthworms from falling again, so that the earthworms can be more comprehensively recovered. Through the cooperation between the seventh rotating shaft and the sweeping rod, the earthworms on the outside of the conveying rod can be moved and collected. Through the cooperation between the sweeping rod and the C-shaped hook, the C-shaped hook can remove the earthworms more delicately. The C-shaped hook is made of soft rubber material to avoid damage to the earthworms caused by pressure.

[0016] 2. Through the cooperation between the second synchronous belt and the dynamic transmission rod, the earthworms that were not removed in time on the outside of the transmission rod can be rotated once and then brought back to the collection box again, so that the C-shaped hook can continue to perform recycling work to avoid waste of earthworm resources. Through the cooperation between the second sliding rod and the connecting shaft, the seventh rotating shaft can slide back and forth horizontally when it rotates, so that the C-shaped hook can comprehensively collect the earthworms on the outside of the transmission rod to avoid omissions at the position where the C-shaped hook and the transmission rod are staggered. Through the cooperation between the card strip and the first sliding rod, the seventh rotating shaft can slide when the sixth rotating shaft drives the seventh rotating shaft to rotate, thereby ensuring the fixation of the position of the seventh rotating shaft, improving the overall structural stability of the device, and allowing the collection mechanism to continuously recycle.

[0017] 3. Airflow can be generated through the air pipe to blow the earthworms on the outside of the conveying rod, speeding up the collection speed of the C-shaped hook. Through the cooperation of the air pipe and the blades, the blades can disperse the water output by the sprinkler head when rotating through the airflow, thereby comprehensively sprinkling the water on the outside of the earthworms in the collection box, so that the earthworms can retain moisture, avoid earthworm loss, achieve a humid environment in the collection box, and make the earthworms actively gather inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an earthworm screening device for mine soil remediation proposed by the present invention; Figure 2 This is a schematic diagram of the overall structure of the first screening mechanism of an earthworm screening device for mine soil remediation proposed by the present invention; Figure 3 This is a schematic cross-sectional view of the overall structure of the first screening mechanism of an earthworm screening device for mine soil remediation proposed by the present invention; Figure 4This is a schematic cross-sectional view of the overall structure of the second screening mechanism of an earthworm screening device for mine soil remediation proposed by the present invention; Figure 5 This is a schematic diagram of the overall structure of the second screening mechanism of an earthworm screening device for mine soil remediation proposed by the present invention; Figure 6 This is a schematic diagram of the overall structure of a collecting mechanism of an earthworm screening device for mine soil remediation proposed by the present invention; Figure 7 This is a schematic cross-sectional view of the overall structure of a collecting mechanism of an earthworm screening device for mine soil remediation proposed by the present invention; Figure 8 This is a schematic cross-sectional view of the collecting mechanism of a device for collecting earthworms for soil remediation in a mine proposed by the present invention. Figure 1 ; Fig. 9 The present invention proposes a device for screening earthworms for mine soil remediation Figure 8 Enlarged diagram of the middle structure Figure 1 ; Fig.10 The present invention proposes a device for screening earthworms for mine soil remediation Figure 8 Enlarged diagram of the middle structure Figure 2 .

[0019] In the figure: 1, operating table; 2, first screening mechanism; 21, fixed plate; 22, motor; 23, first rotating shaft; 24, eccentric plate; 25, second rotating shaft; 26, connecting rod; 27, third rotating shaft; 28, first fixed block; 29, filter frame; 210, first connecting block; 211, first spring; 212, second connecting block; 3, second screening mechanism; 31, first gear; 32, first synchronous belt; 33, second gear; 34, fourth rotating shaft; 35, second fixed block; 36, second synchronous belt; Step belt; 37, transmission rod; 38, fifth rotating shaft; 4, collection mechanism; 41, third synchronous belt; 42, third gear; 43, collection box; 44, sixth rotating shaft; 45, first slide bar; 46, card strip; 47, seventh rotating shaft; 48, sweeping rod; 49, C-shaped hook; 410, connecting shaft; 411, slide groove; 412, sleeve; 413, second slide bar; 414, third slide bar; 415, limit block; 416, second spring; 417, air pipe; 418, blade; 419, sprinkler head. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-Figure 10A device for screening earthworms for mine soil remediation comprises an operating platform 1, a first screening mechanism 2 is installed at the upper end of the operating platform 1 near the middle, second screening mechanisms 3 are installed on both sides of the operating platform 1, a collecting mechanism 4 is installed at the front end of the operating platform 1, the first screening mechanism 2 comprises a fixed plate 21 fixedly connected to the operating platform 1, a motor 22 is installed on one side of the fixed plate 21, an output shaft of the motor 22 is fixedly connected to a first rotating shaft 23, the first rotating shaft 23 passes through the operating platform 1, and the first rotating shaft 23 is rotatably connected to the inner side of the operating platform 1.

[0022] In this embodiment, one end of the first rotating shaft 23 is fixedly connected to an eccentric plate 24, one side of the eccentric plate 24 is fixedly connected to a second rotating shaft 25, the outer side of the second rotating shaft 25 is rotatably connected to a connecting rod 26, the inner side of the connecting rod 26 near the front end is rotatably connected to a third rotating shaft 27, the outer side of the third rotating shaft 27 is rotatably connected to two groups of symmetrical first fixed blocks 28, and the upper ends of the two groups of first fixed blocks 28 are commonly fixedly connected to a filter frame 29.

[0023] Specifically, after the motor 22 is started, it drives the first rotating shaft 23 to rotate, the first rotating shaft 23 drives the eccentric plate 24 to rotate, the eccentric plate 24 drives the second rotating shaft 25 to rotate, and the eccentric plate 24 uses its own eccentric design to pull the connecting rod 26 with the second rotating shaft 25, so that the third rotating shaft 27 is pulled, and the third rotating shaft 27 drives the filter frame 29 to shake through the first fixed block 28.

[0024] In this embodiment, two groups of symmetrical first connecting blocks 210 are fixedly connected on both sides of the filter frame 29, the lower ends of the two groups of first connecting blocks 210 are fixedly connected to the first springs 211, the other ends of the two groups of first springs 211 are fixedly connected to the second connecting blocks 212, and the adjacent sides of the two groups of second connecting blocks 212 are fixedly connected to the operating table 1.

[0025] Specifically, the filter frame 29 is connected to the first spring 211 through the first connecting block 210, and the first spring 211 is fixed to the operating table 1 through the second connecting block 212, so that when the third rotating shaft 27 drives the filter frame 29, displacement is generated through the eccentric design of the eccentric plate 24, and the filter frame 29 will shake, so that the soil in the filter frame 29 is filtered downward, and the earthworms are left in the filter frame 29.

[0026] In this embodiment, the second screening mechanism 3 includes two sets of symmetrical first gears 31, both sets of first gears 31 are fixedly connected to the outside of the eccentric plate 24, and the ends of the two sets of first gears 31 close to each other are in contact with the operating table 1, the outside of the first gear 31 is rotatably connected to the first synchronous belt 32, the inside of the first synchronous belt 32 is rotatably connected to the second gear 33, the inside of the second gear 33 is fixedly connected to the fourth rotating shaft 34, and one end of the second gear 33 on the outside of the fourth rotating shaft 34 is rotatably connected to the second fixed block 35, and the lower end of the second fixed block 35 is rotatably connected to the second gear 33. The fourth rotating shaft 34 passes through the second fixed block 35, and the other side of the outer side of the fourth rotating shaft 34 is rotatably connected to the second fixed block 35 through a latch gear. The two groups of second synchronous belts 36 are fixedly connected to the adjacent sides of multiple groups of transmission rods 37, and the inner side of the transmission rod 37 is rotatably connected to the position near the front end, and the two groups of fifth rotating shafts 38 are rotatably connected to the collecting box 43 through the rotating shaft. A water filter net is arranged on the inner side of the collecting box 43, and the rear end of the collecting box 43 is fixedly connected to the operating table 1.

[0027] Specifically, when the first rotating shaft 23 rotates, it will also drive the first gear 31. The first gear 31 drives the second gear 33 through the first synchronous belt 32. The second gear 33 drives the fourth rotating shaft 34 in the second fixed block 35. The fourth rotating shaft 34 and the fifth rotating shaft 38 jointly drive the second fixed block 35 to rotate. The two groups of second fixed blocks 35 jointly drive the conveying rod 37 to rotate. The soil sifted out by the filter frame 29 falls downward through the gaps between the multiple groups of conveying rods 37, and the earthworms will be hung on the outside of the conveying rod 37 due to their own strip-shaped characteristics, and then transported to one side of the collection box 43 by the second synchronous belt 36.

[0028] In this embodiment, the collecting mechanism 4 includes a third synchronous belt 41 rotatably connected to one of the two groups of first gears 31, the inner side of the third synchronous belt 41 is rotatably connected to the third gear 42, one end of the third gear 42 is fixedly connected to the sixth rotating shaft 44, the sixth rotating shaft 44 is rotatably connected to the inner side of the collecting box 43, one end of the sixth rotating shaft 44 is fixedly connected to the first sliding rod 45, the outer side of the first sliding rod 45 is fixedly connected to two groups of symmetrical clamping strips 46, the outer side of the first sliding rod 45 is slidably connected to the seventh rotating shaft 47, and the outer side of the seventh rotating shaft 47 is fixedly connected to multiple groups of sweeping rods 48.

[0029] Specifically, when the first gear 31 rotates, it will also drive the third synchronous belt 41, and the third synchronous belt 41 will rotate in the collection box 43 through the third gear 42. The third gear 42 will drive the sixth rotating shaft 44 to rotate. The sixth rotating shaft 44 will drive the seventh rotating shaft 47 to rotate through the first sliding rod 45 and the clamping strip 46. The seventh rotating shaft 47 will drive the sweeping rod 48 to rotate, thereby moving the earthworms on the outside of the conveying rod 37.

[0030] In this embodiment, the upper end of the sweep rod 48 is fixedly connected with a C-shaped hook 49, and the C-shaped hook 49 is made of soft rubber material.

[0031] Specifically, the sweeping rod 48 moves the earthworms outside the transmission rod 37 through the C-shaped hook 49 when rotating. The C-shaped hook 49 is made of soft rubber material to prevent the earthworms from being damaged by pressure.

[0032] In this embodiment, one end of the seventh rotating shaft 47 is fixedly connected to the connecting shaft 410, and a sliding groove 411 is opened on the outer side of the connecting shaft 410. The sliding groove 411 surrounds the outer side of the connecting shaft 410, and the sliding groove 411 is designed at an oblique angle. The outer side of the connecting shaft 410 is slidably connected to a sleeve 412, and the outer side of the sleeve 412 is fixedly connected to the collection box 43. The inner wall of the sleeve 412 is fixedly connected to a second sliding rod 413, and the second sliding rod 413 is slidably connected to the inner side of the sliding groove 411.

[0033] Specifically, the seventh rotating shaft 47 drives the connecting shaft 410 to rotate in the sleeve 412. When the connecting shaft 410 rotates, it slides in the slide groove 411 through the second slide rod 413. The height difference of the slide groove 411 is utilized to make the connecting shaft 410 drive the seventh rotating shaft 47 to slide, so that the seventh rotating shaft 47 can slide back and forth, thereby allowing the C-shaped hook 49 to more comprehensively move the earthworms on the outside of the transmission rod 37.

[0034] In this embodiment, the other end of the connecting shaft 410 is fixedly connected to a third sliding rod 414, the outer side of the third sliding rod 414 is slidably connected to the sleeve 412, the other end of the third sliding rod 414 is fixedly connected to a limiting block 415, and a second spring 416 is provided inside the sleeve 412 outside the third sliding rod 414, one end of the second spring 416 is fixedly connected to the connecting shaft 410, and the other end of the second spring 416 is fixedly connected to the third sliding rod 414.

[0035] Specifically, when the connecting shaft 410 rotates, the third sliding rod 414 is driven to rotate, and the second spring 416 is compressed by the drop of the sliding groove 411. The third sliding rod 414 prevents the second spring 416 from being misplaced, and enables the connecting shaft 410 to always maintain horizontal sliding. The limit block 415 limits the position of the third sliding rod 414.

[0036] In this embodiment, an air pipe 417 is installed on the inner side of the collection box 43 near the rear end.

[0037] Specifically, when the earthworms enter the collection box 43, the airflow output through the air pipe 417 can accelerate the earthworms to fall off.

[0038] In this embodiment, a blade 418 is rotatably connected to the inner side of the collection box 43 near the upper end via a rotating shaft, and a spray head 419 is provided in front of the inner blade 418 of the collection box 43 .

[0039] Specifically, the airflow output by the air pipe 417 will drive the blades 418 to rotate. When rotating, the blades 418 will disperse the water flow output by the sprinkler head 419 and make it fall completely into the collection box 43 to prevent the earthworms inside from drying out. The excess water flow is filtered through the water filter plate inside the collection box 43.

[0040] Working principle: when in use, the soil mixed with earthworms is uniformly placed in the filter frame 29, and the motor 22 installed on the fixed plate 21 is started to rotate the first rotating shaft 23, the first rotating shaft 23 drives the eccentric plate 24 to rotate, and the eccentric plate 24 drives the second rotating shaft 25 to rotate. The eccentric plate 24 uses the second rotating shaft 25 to pull the connecting rod 26 through its own eccentric design, so that the third rotating shaft 27 is pulled, and the third rotating shaft 27 drives the filter frame 29 through the first fixed block 28. The filter frame 29 is connected to the first spring 211 through the first connecting block 210, and the first spring 211 is fixed to the operating table 1 through the second connecting block 212, so that when the third rotating shaft 27 drives the filter frame 29, the eccentric design of the eccentric plate 24 generates displacement, and the filter frame 29 will shake, so that the soil in the filter frame 29 is filtered downward, and the earthworms are left in the filter frame 29, but some small earthworms will run downward through the filter holes; When the first rotating shaft 23 rotates, it also drives the first gear 31, and the first gear 31 drives the second gear 33 through the first synchronous belt 32. The second gear 33 drives the fourth rotating shaft 34 in the second fixed block 35. The fourth rotating shaft 34 and the fifth rotating shaft 38 jointly drive the second fixed block 35 to rotate. The two groups of second fixed blocks 35 jointly drive the conveying rod 37 to rotate. The soil sieved out by the filter frame 29 falls downward along the gaps between the multiple groups of conveying rods 37, and the earthworms will be hung on the outside of the conveying rod 37 due to their own strip-shaped characteristics, and then transported to one side of the collection box 43 by the second synchronous belt 36; When the first gear 31 rotates, it also drives the third synchronous belt 41, and the third synchronous belt 41 rotates in the collection box 43 through the third gear 42. The third gear 42 drives the sixth shaft 44 to rotate. The sixth shaft 44 drives the seventh shaft 47 to rotate through the first slide bar 45 and the clamping strip 46. The seventh shaft 47 drives the sweeping rod 48 to rotate. When the sweeping rod 48 rotates, it moves the earthworms on the outside of the conveying rod 37 through the C-shaped hook 49, so that the earthworms fall into the collection box 43. The seventh shaft 47 drives the connecting shaft 410 in the sleeve 412. When the connecting shaft 410 rotates, the second sliding rod 413 slides in the slide groove 411, and the connection shaft 410 drives the seventh rotating shaft 47 to slide by utilizing the height difference of the slide groove 411, so that the seventh rotating shaft 47 can slide back and forth, so that the C-shaped hook 49 can more comprehensively move the earthworms outside the conveying rod 37. When the earthworms outside the conveying rod 37 are not removed in time, the second synchronous belt 36 drives the conveying rod 37 to rotate one circle and brings the earthworms back to the collecting box 43 again. The double-layer conveying rod 37 can comprehensively prevent the earthworms from falling again. When the seventh rotating shaft 47 slides, the clamping strip 46 can ensure that the sixth rotating shaft 44 can always drive the rotation of the seventh rotating shaft 47 without affecting the sliding of the seventh rotating shaft 47. When the connecting shaft 410 rotates, it will drive the third sliding rod 414 to rotate, and compress the second spring 416 through the drop of the sliding groove 411. The third sliding rod 414 prevents the second spring 416 from being misplaced, and keeps the connecting shaft 410 sliding horizontally. The limit block 415 limits the position of the third sliding rod 414. When the earthworms enter the collecting box 43, the airflow output through the air pipe 417 can accelerate the falling of the earthworms. The airflow will drive the blades 418 to rotate. When rotating, the blades 418 will disperse the water flow output by the sprinkler head 419, and it will fall completely into the collecting box 43 to prevent the earthworms inside from drying out. The excess water is filtered through the water filter plate inside the collecting box 43.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for screening earthworms for mine soil remediation, comprising an operating table (1), characterized in that: A first screening mechanism (2) for preliminarily separating earthworms from soil is installed near the middle of the upper end of the operating platform (1), second screening mechanisms (3) for collecting earthworms that fall with the soil are installed on both sides of the operating platform (1), and a collecting mechanism (4) for collecting the collected earthworms is installed at the front end of the operating platform (1). The first screening mechanism (2) comprises a fixing plate (21) fixedly connected to the operating platform (1), a motor (22) is installed on one side of the fixing plate (21), an output shaft of the motor (22) is fixedly connected to a first rotating shaft (23), the first rotating shaft (23) passes through the operating platform (1), the first rotating shaft (23) is rotatably connected to the inner side of the operating platform (1), one end of the first rotating shaft (23) is fixedly connected to an eccentric plate (24), one side of the eccentric plate (24) is fixedly connected to a second rotating shaft (25), and the outer side of the second rotating shaft (25) is fixedly connected to the eccentric plate (24). The second screening mechanism (3) is rotatably connected to the side with a connecting rod (26), the second screening mechanism (3) comprises two sets of symmetrical first gears (31), the two sets of first gears (31) are fixedly connected to the outside of the eccentric plate (24), the ends of the two sets of first gears (31) close to each other are in contact with the operating table (1), the outside of the first gear (31) is rotatably connected to a first synchronous belt (32), the inside of the first synchronous belt (32) is rotatably connected to a second gear (33), the inside of the second gear (33) is fixedly connected to a fourth rotating shaft (34), one end of the second gear (33) outside the fourth rotating shaft (34) is rotatably connected to a second fixed block (35), the lower end of the second fixed block (35) is fixedly connected to the operating table (1), the fourth rotating shaft (34) passes through the second fixed block (35), and the other side of the second fixed block (35) outside the fourth rotating shaft (34) is rotatably connected to a second synchronous belt (36) through a latching tooth.

2. The earthworm screening device for mine soil remediation according to claim 1 is characterized in that: A third rotating shaft (27) is rotatably connected to the inner side of the connecting rod (26) near the front end, and two groups of symmetrical first fixing blocks (28) are rotatably connected to the outer side of the third rotating shaft (27). The upper ends of the two groups of first fixing blocks (28) are commonly fixedly connected to a filter frame (29).

3. The earthworm screening device for mine soil remediation according to claim 2 is characterized in that: Two sets of symmetrical first connection blocks (210) are fixedly connected to both sides of the filter frame (29); the lower ends of the two sets of first connection blocks (210) are fixedly connected to first springs (211); the other ends of the two sets of first springs (211) are fixedly connected to second connection blocks (212); and the adjacent sides of the two sets of second connection blocks (212) are fixedly connected to the operating table (1).

4. The earthworm screening device for mine soil remediation according to claim 1 is characterized in that: A plurality of transmission rods (37) are fixedly connected to the adjacent sides of the two sets of the second synchronous belts (36); a fifth rotating shaft (38) is rotatably connected to the inner side of the transmission rod (37) near the front end; the two sets of the fifth rotating shafts (38) are rotatably connected to a collection box (43) via the rotating shaft; a water filter net is provided on the inner side of the collection box (43); and the rear end of the collection box (43) is fixedly connected to the operating table (1).

5. The earthworm screening device for mine soil remediation according to claim 1 is characterized by: The collecting mechanism (4) comprises a third synchronous belt (41) rotatably connected to one of the two groups of first gears (31); a third gear (42) is rotatably connected to the inner side of the third synchronous belt (41); one end of the third gear (42) is fixedly connected to a sixth rotating shaft (44); the sixth rotating shaft (44) is rotatably connected to the inner side of the collecting box (43); one end of the sixth rotating shaft (44) is fixedly connected to a first sliding rod (45); the outer side of the first sliding rod (45) is fixedly connected to two groups of symmetrical clamping strips (46); the outer side of the first sliding rod (45) is slidably connected to a seventh rotating shaft (47); the outer side of the seventh rotating shaft (47) is fixedly connected to a plurality of sweeping rods (48).

6. The earthworm screening device for mine soil remediation according to claim 5, characterized in that: The upper ends of the sweeping rods (48) are fixedly connected with C-shaped hooks (49), and the C-shaped hooks (49) are made of soft rubber material.

7. The earthworm screening device for mine soil remediation according to claim 5, characterized in that: One end of the seventh rotating shaft (47) is fixedly connected to a connecting shaft (410), and a slide groove (411) is provided on the outer side of the connecting shaft (410). The slide groove (411) surrounds the outer side of the connecting shaft (410), and the slide groove (411) is designed to be beveled. The outer side of the connecting shaft (410) is slidably connected to a sleeve (412), and the outer side of the sleeve (412) is fixedly connected to the collection box (43). The inner wall of the sleeve (412) is fixedly connected to a second slide rod (413), and the second slide rod (413) is slidably connected to the inner side of the slide groove (411).

8. The earthworm screening device for mine soil remediation according to claim 7, characterized in that: The other end of the connecting shaft (410) is fixedly connected to a third sliding rod (414), the outer side of the third sliding rod (414) is slidably connected to the sleeve (412), the other end of the third sliding rod (414) is fixedly connected to a limiting block (415), a second spring (416) is provided inside the sleeve (412) outside the third sliding rod (414), one end of the second spring (416) is fixedly connected to the connecting shaft (410), and the other end of the second spring (416) is fixedly connected to the third sliding rod (414).

9. The earthworm screening device for mine soil remediation according to claim 4, characterized in that: An air pipe (417) is installed on the inner side of the collection box (43) near the rear end.

10. The earthworm screening device for mine soil remediation according to claim 4, characterized in that: A blade (418) is rotatably connected to the inner side of the collection box (43) near the upper end via a rotating shaft, and a spray head (419) is provided in front of the inner blade (418) of the collection box (43).

Images