CN218191000U

CN218191000U - Livestock and poultry feed plane rotary classifying screen

Info

Publication number: CN218191000U
Application number: CN202222230199.XU
Authority: CN
Inventors: 鲍云鹤
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-01-03
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a beasts and birds fodder plane gyration classifying screen, including first shape frame of returning, the first bottom fixedly connected with top of returning the shape frame is the guide box that the opening set up, and the bottom inner wall of guide box is established to the toper structure, is used for deriving the fodder of screening through the guide box, be equipped with the second in the first shape frame of returning and return shape frame and third and return the shape frame, the second returns shape frame internalization cover and is equipped with coarse filtration net, and the coarse filtration net is used for sheltering from the great beasts and birds fodder of granule, and the third returns shape frame internalization cover and is equipped with the fine filtration net. The utility model discloses a coarse filtration net and fine filtration net's setting can realize the purpose of classified screening, and the while of being convenient for drive coarse filtration net and fine filtration net circulation right side left vibrations reciprocates, under its both cooperations, increases the shaking force and increases the direction of vibrations to improve the screening effect, and can improve ejection of compact efficiency, make things convenient for personnel to operate with the quick ejection of compact of the fodder of selecting.

Description

Livestock and poultry feed plane rotary classifying screen

Technical Field

The utility model relates to a fodder classifying screen technical field especially relates to a beasts and birds fodder plane gyration classifying screen.

Background

The general feed mainly refers to food of animals raised in agriculture or animal husbandry, the feed comprises more than ten kinds of feeds such as soybean, soybean meal, corn, fish meal, amino acid, miscellaneous meal, whey powder, grease, meat and bone meal, grains, feed additives and the like, a plane rotary classifying screen is usually used for screening the feed in the production and processing process of the feed to improve the processing effect of the feed, and the application number is as follows: 202121362572.6 discloses a planar rotary classifying screen device for concentrated feed processing, which comprises a screening box body, a screening mechanism and a driving mechanism, wherein the screening mechanism is positioned at the inner side of the screening box body, the driving mechanism is positioned at the right side of the screening box body, the driving mechanism comprises a driving box, the right side wall of the driving box is fixedly connected with a servo motor, an output shaft of the servo motor is fixedly connected with a threaded rod, the outer side of the threaded rod is in threaded connection with a threaded block, the left side of the threaded block is fixedly connected with a movable rod, the top and the bottom of the threaded block are both fixedly connected with sliding blocks, and the left end of the threaded rod is fixedly connected with a rolling bearing; this concentrated feed processing is with plane gyration classifying screen device has realized the effectual purpose of classifying screen device screening, can effectually carry out the classified screening to the size of concentrated feed, has guaranteed the effect that the concentrated feed screened, has improved the availability factor and the result of use of classifying screen device.

The disclosed plane gyration classifying screen device of above-mentioned patent, its in-process at the screening, screens the mode that the mechanism horizontal cycle removed and carries out the screening through the screw thread drive, and the shaking force is less, leads to screening effect unsatisfactory, and the fodder after the screening is piled up in screening mechanism, needs personnel manual to take the fodder out, and the operation is inconvenient, and wastes time and energy, can not satisfy the user demand, therefore we have proposed a beasts and birds fodder plane gyration classifying screen and are used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a livestock and poultry feed plane rotary grading sieve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a plane rotary grading sieve for the feed of domestic animals or fowls is composed of a first circular frame, a feed guiding box with an open top, a conic internal wall for guiding the feed, a fine filter net for shielding the feed, a fine drive mechanism for driving said fine filter net to slide along said vertical circular frame, a vertical circulating drive mechanism for driving said fine filter net to slide along said vertical circular frame, and a L-shaped handle fixed to the top of said vertical circulating drive mechanism, the right side fixed mounting of first time shape frame has output shaft top and horizontal circulation actuating mechanism's bottom fixed connection's driving motor, driving motor and horizontal circulation actuating mechanism cooperate, can drive second time shape frame and third time shape frame circulation right and left removal, left vertical circulation actuating mechanism's left side fixedly connected with U-shaped locating lever, first time shape frame slip cover is established on the U-shaped locating lever, the U-shaped locating lever plays the effect of horizontal direction to left vertical circulation actuating mechanism, thereby realize returning the shape frame and the third time shape frame to the second and play the effect of horizontal direction.

Preferably, the vertical circulating driving mechanism comprises mounting plates, moving blocks are fixedly connected to the two sides of the second rectangular frame and the two sides of the third rectangular frame, two mounting grooves are formed in one side, close to each other, of the two mounting plates, the moving blocks are slidably mounted in the corresponding mounting grooves, reciprocating electric telescopic rods are embedded into the inner walls of the bottoms of the two mounting grooves above the two mounting grooves, the tops of the output shafts of the reciprocating electric telescopic rods are fixedly connected with the bottoms of the corresponding moving blocks above the reciprocating electric telescopic rods, the reciprocating electric telescopic rods are used for driving the moving blocks above to move up and down, and the two ends of the right side of each U-shaped positioning rod are fixedly connected with the left side of the corresponding mounting plate.

Preferably, the transverse circulation driving mechanism comprises a movable plate, the left side of the movable plate is fixedly connected with the right side of the mounting plate on the right side, the right side of the movable plate slidably extends to the right side of the first clip frame and is fixedly connected with a fourth clip frame, balls are embedded on the inner walls of the two sides of the fourth clip frame, the two balls are in rolling contact with each other and are provided with a same eccentric wheel, the top end of an output shaft of the driving motor is fixedly connected with the right side of the bottom of the eccentric wheel, and the eccentric wheel is matched with the balls and used for driving the fourth clip frame to circularly move right and left.

Preferably, equal two collision pieces of fixedly connected with on the both sides inner wall of first shape frame of returning, second return shape frame and third return shape frame and are located respectively between two collision pieces that correspond and cooperate with the collision piece, the second return shape frame and third return shape frame can collide the production vibrations power with the collision piece when the circulation moves from right side to left side, left two collision pieces return the left side of shape frame and the left side swing joint of shape frame with the second respectively, two connecting blocks of fixedly connected with between the one side that shape frame and third return shape frame are close to each other are returned to the second, realize returning the connection of shape frame and third through the connecting block.

Preferably, the right side of the first frame is fixedly connected with a supporting plate, the bottom of the driving motor is fixedly connected with the top of the supporting plate, and the supporting plate is used for supporting the driving motor.

Preferably, the L-shaped handle that is located the second and returns the shape frame extends to its top, the L-shaped handle that is located the third and returns the shape frame extends to its top, the top both sides that the second returned the shape frame and the top both sides that the third returned the shape frame all set up flutedly, fixedly connected with first magnet on the bottom inner wall of recess, fixedly connected with second magnet on the top inner wall of L-shaped handle, the bottom of second magnet extends to in the recess that corresponds and adsorbs with the top of first magnet, the outside of second magnet and the inner wall movable contact of the recess that corresponds, the L-shaped handle cooperatees through first magnet and second magnet, fixed mode is inhaled to magnetism, can shift out the coarse filtration net and the fine filtration net in second returned shape frame and the third soon.

Preferably, two equal fixedly connected with supporting legs in bottom both sides of guide box, the bottom intercommunication of guide box is fixed with row material pipe, arranges the bottom fixedly connected with valve of material pipe, arranges material pipe and valve and cooperatees for arrange the material operation.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the transverse circulation driving mechanism, the vertical circulation driving mechanism, the driving motor, the second square frame and the third square frame are matched, so that the coarse filter screen and the fine filter screen can be driven to move up and down while vibrating right and left circularly, the vibration force is increased, and the screening effect is improved;

2. the purpose of classified screening can be realized by arranging the coarse filter screen and the fine filter screen;

3. the screened feed can be quickly moved out by matching the L-shaped handle with the first electric telescopic rod, so that the aim of quick discharging is fulfilled, and the operation of personnel is facilitated;

the utility model discloses a coarse filtration net and fine filtration net's setting can realize the purpose of classified screening, and the while of being convenient for drive coarse filtration net and fine filtration net circulation right side left vibrations reciprocates, under its both cooperations, increases the shaking force and increases the direction of vibrations to improve the screening effect, and can improve ejection of compact efficiency, make things convenient for personnel to operate with the quick ejection of compact of the fodder of selecting.

Drawings

FIG. 1 is a schematic structural view of a livestock and poultry feed plane rotary classifying screen provided by the utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is a schematic view of the third loop-shaped frame of the livestock and poultry feed plane rotary grading sieve in the top view structure.

In the figure: 100. a first frame of a rectangle; 101. a material guiding box; 1. a collision mass; 2. a second frame; 3. a third frame; 4. mounting a plate; 5. mounting grooves; 6. a reciprocating electric telescopic rod; 7. a moving block; 8. a coarse filter screen; 9. a fine filter screen; 10. an L-shaped handle; 11. a first electric telescopic rod; 12. connecting blocks; 13. a U-shaped positioning rod; 14. moving the plate; 15. a fourth frame; 16. an eccentric wheel; 17. a drive motor; 18. and a ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a planar rotary grading sieve for livestock and poultry feed comprises a first rectangular frame 100, a material guiding box 101 with an opening at the top is fixedly connected to the bottom of the first rectangular frame 100, two supporting legs are fixedly connected to both sides of the bottom of the material guiding box 101, the material guiding box 101 is supported by the supporting legs, the inner wall of the bottom of the material guiding box 101 is a conical structure, the bottom of the material guiding box 101 is communicated and fixed with a material discharging pipe, a valve is fixedly connected to the bottom end of the material discharging pipe, material discharging operation is performed by the cooperation of the material discharging pipe and the valve, a second rectangular frame 2 and a third rectangular frame 3 are arranged in the first rectangular frame 100, wherein the front side and the rear side of the second rectangular frame 2 and the front side and the rear side of the third rectangular frame 3 are respectively in movable contact with the inner wall of the front side and the inner wall of the rear side of the first rectangular frame 100, two collision blocks 1 are fixedly connected to both inner walls of the first rectangular frame 100, the second clip frame 2 and the third clip frame 3 are respectively positioned between the two corresponding collision blocks 1 and are matched with the collision blocks 1, the two collision blocks 1 on the left side are respectively in movable contact with the left side of the second clip frame 2 and the left side of the third clip frame 3, the collision blocks 1 are arranged and can collide with the collision blocks 1 when the second clip frame 2 and the third clip frame 3 move left and right to generate vibration force, a coarse filter screen 8 is movably sleeved in the second clip frame 2, a fine filter screen 9 is movably sleeved in the third clip frame 3, L-shaped handles 10 are fixedly connected on two sides of the top of the coarse filter screen 8 and two sides of the top of the fine filter screen 9, the L-shaped handle 10 positioned in the second clip frame 2 extends to the upper part of the L-shaped handle, the L-shaped handle 10 positioned in the third clip frame 3 extends to the upper part of the L-shaped handle, grooves are respectively formed on two sides of the top of the second clip frame 2 and two sides of the top of the third clip frame 3, the inner wall of the bottom of each groove is fixedly connected with a first magnet, the inner wall of the top of each L-shaped handle 10 is fixedly connected with a second magnet, the bottom of each second magnet extends into the corresponding groove and is adsorbed to the top of the corresponding first magnet, the outer side of each second magnet is movably contacted with the inner wall of the corresponding groove, and the L-shaped handles 10 are matched with the corresponding second magnets through the first magnets to realize a magnetic attraction fixing mode, so that the coarse filter screen 8 and the fine filter screen 9 can be quickly removed from the fixing mode;

two connecting blocks 12 are fixedly connected between the mutually close sides of the second and third

rectangular frames

2 and 3, the connection of the second and third

rectangular frames

2 and 3 is realized through the connecting blocks 12, first electric telescopic rods 11 are embedded on both sides of the top of the third rectangular frame 3, the top ends of output shafts of the first electric telescopic rods 11 are in contact with the top inner walls of the corresponding L-shaped handles 10, the first electric telescopic rods 11 are used for driving the corresponding L-shaped handles 10 to move up and down, vertical circulating driving mechanisms are fixedly connected on both sides of the second rectangular frame 2, the mutually close sides of the two vertical circulating driving mechanisms are respectively connected with both sides of the third rectangular frame 3, wherein the vertical circulating driving mechanisms comprise mounting plates 4, moving blocks 7 are fixedly connected on both sides of the second rectangular frame 2 and both sides of the third rectangular frame 3, two mounting grooves 5 are respectively formed on the mutually close sides of the two mounting plates 4, the moving blocks 7 are slidably mounted in the corresponding mounting grooves 5, the inner walls of the mounting grooves 5 on the side far away from the opening of the mounting grooves 5 are fixedly connected with T-shaped frames, one side of the sliding rail 6 which is arranged on the upper side of the reciprocating sliding rail, and the inner walls of the reciprocating sliding grooves 6 which the reciprocating sliding rail is arranged on the corresponding mounting grooves 6, and the reciprocating telescopic rods which are arranged on the inner walls of the reciprocating sliding rail, and the reciprocating sliding rails which are arranged above the mounting grooves 6 which are arranged on the reciprocating sliding rails which are arranged, and the mounting grooves 6 which are arranged, and the reciprocating telescopic rods which are arranged;

the right side of the mounting plate 4 positioned on the right side is fixedly connected with a transverse circulation driving mechanism, the right side of the transverse circulation driving mechanism extends to the right side of the first return frame 100 in a sliding manner, the right side of the first return frame 100 is fixedly provided with a driving motor 17, the top end of an output shaft of the driving motor 17 is fixedly connected with the bottom of the transverse circulation driving mechanism, the right side of the first return frame 100 is fixedly connected with a supporting plate, the bottom of the driving motor 17 is fixedly connected with the top of the supporting plate, and the driving motor 17 is supported by the supporting plate, wherein the transverse circulation driving mechanism comprises a moving plate 14, the left side of the moving plate 14 is fixedly connected with the right side of the mounting plate 4 on the right side, the right side of the moving plate 14 extends to the right side of the first return frame 100 in a sliding manner and is fixedly connected with a fourth return frame 15, a rectangular through hole for the moving plate 14 to be slidably mounted is formed in the inner wall of the right side of the first return frame 100, balls 18 are embedded in the inner walls on the two sides of the fourth return frame 15, the same eccentric wheel 16 is in a rolling contact manner, and the top end of the output shaft of the driving motor 17 is fixedly connected with the right side of the bottom of the eccentric wheel 16;

left side fixedly connected with U-shaped locating lever 13 of left mounting panel 4, first time shape frame 100 slip cap is established on U-shaped locating lever 13, wherein has seted up two guiding holes on the left side inner wall of first time shape frame 100, the inner wall of guiding hole and the outside sliding connection of the U-shaped locating lever 13 that corresponds, U-shaped locating lever 13 plays the effect of direction to left mounting panel 4, the utility model discloses a setting of coarse filtration net 8 and thin filter screen 9 can realize the purpose of hierarchical screening, is convenient for drive coarse filtration net 8 and thin filter screen 9 and reciprocate when shaking about the circulation, under its both cooperations, increases the shaking force and increases the direction of shaking to improve the screening effect, and can improve the quick ejection of compact of the fodder of selecting, improve discharging efficiency, make things convenient for personnel to operate.

The working principle is as follows: when the plane rotary grading sieve is used, feed to be graded and screened is poured into the second circular frame 2, then the driving motor 17 and the two reciprocating electric telescopic rods 6 are started, the output shaft of the driving motor 17 drives the eccentric wheel 16 to rotate, the eccentric wheel 16 extrudes the right-side ball 18 when rotating for the first half circle, the extruding force drives the fourth circular frame 15 to move rightwards through the right-side ball 18, the eccentric wheel 16 rotates for the second half circle and then extrudes the left-side ball 18, the extruding force drives the fourth circular frame 15 to move leftwards through the left-side ball 18, the eccentric wheel 16 continuously rotates, so that the fourth circular frame 15 circularly moves leftwards and rightwards, the fourth circular frame 15 drives the right-side mounting plate 4 to circularly move leftwards and leftwards through the moving plate 14, the right-side mounting plate 4 drives the second circular frame 2 and the third circular frame 3 to circularly move leftwards and leftwards, the second clip frame 2 and the third clip frame 3 simultaneously drive the left mounting plate 4 to circularly move right and left, the left mounting plate 4 drives the U-shaped positioning rod 13 to circularly move right and left, the second clip frame 2 and the third clip frame 3 respectively drive the coarse filter screen 8 and the fine filter screen 9 to circularly move right and left while circularly moving right and left, the second clip frame 2 and the third clip frame 3 circularly collide with the collision blocks 1 on both sides while circularly moving right and left, under the action of the collision force, the second clip frame 2 and the third clip frame 3 generate vibration force, so that the coarse filter screen 8 and the fine filter screen 9 generate vibration, simultaneously the output shaft of the reciprocating electric telescopic rod 6 drives the moving block 7 fixedly connected with the reciprocating electric telescopic rod to circularly move up and down, the two moving blocks 7 above drive the second clip frame 2 to circularly move up and down, the second clip frame 2 drives the third clip frame 3 to circularly move up and down through the two connecting blocks 12, the third square-shaped frame 3 drives the two moving blocks 7 below to circularly move downwards and upwards, and the second square-shaped frame 2 and the third square-shaped frame 3 respectively drive the coarse filter screen 8 and the fine filter screen 9 to circularly move downwards and upwards while circularly moving downwards and upwards, so that the coarse filter screen 8 and the fine filter screen 9 circularly move leftwards and rightwards and move upwards while circularly moving upwards and downwards;

when the coarse filter screen 8 and the fine filter screen 9 move leftwards and rightwards circularly and move upwards and downwards, the feed smaller than the filter holes of the coarse filter screen 8 falls into the third square frame 3, the feed larger than the filter holes of the coarse filter screen 8 is shielded at the top of the coarse filter screen 8, the feed falling into the third square frame 3 falls into the material guide box 101 under the vibration force, the feed smaller than the filter holes of the fine filter screen 9 falls into the material guide box 101, the feed larger than the filter holes of the fine filter screen 9 is shielded at the top of the coarse filter screen 8, a material receiving box can be placed below the material guide box 101, a valve is opened, the feed falling into the material guide box 101 falls into the material receiving box through the valve, and the purpose of grading screening can be realized by effectively vibrating the coarse filter screen 8 and the fine filter screen 9, so that the screening effect is improved;

after the screening is accomplished, close driving motor 17 and reciprocal electric telescopic handle 6, two L shape handles 10 that this moment can upwards stimulate the top drive coarse filtration net 8 and return and ask out in shape frame 2 from the second, can directly pour out the fodder of sieving out on the coarse filtration net 8, just forward starts two first electric telescopic handle 11, the output shaft of first electric telescopic handle 11 drives L shape handle 10 of corresponding below and upwards moves, two L shape handles 10 of below drive fine filtration net 9 and upwards move to the second simultaneously and return in shape frame 2, two L shape handles 10 of below that can upwards move up this moment, two L shape handles 10 of below drive fine filtration net 9 and the fodder of its top shift out, can pour out the fodder, through directly shifting out the mode that the fodder was poured out to the filter screen, make things convenient for personnel to operate, improve ejection of compact efficiency, the fodder is poured out the back, can put into respectively in shape frame 3 and the second with fine filtration net 9 and coarse filtration net 8 in proper order, can wait for the next time screening operation.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. A plane rotary classifying screen for livestock and poultry feed comprises a first circular frame (100), wherein the top of the bottom of the first circular frame (100) is fixedly connected with a material guide box (101) with an opening, the inner wall of the bottom of the material guide box (101) is of a conical structure, the plane rotary classifying screen is characterized in that a second circular frame (2) and a third circular frame (3) are arranged in the first circular frame (100), a coarse filter screen (8) is movably sleeved in the second circular frame (2), a fine filter screen (9) is movably sleeved in the third circular frame (3), L-shaped handles (10) are fixedly connected to two sides of the top of the coarse filter screen (8) and two sides of the top of the fine filter screen (9), and one side of the second circular frame (2) and one side of the third circular frame (3) which are close to each other are fixedly installed, the top both sides of third time shape frame (3) all inlay and be equipped with first electric telescopic handle (11), the output shaft top of first electric telescopic handle (11) contacts with the top inner wall of L shape handle (10) that corresponds, the equal fixedly connected with vertical circulation actuating mechanism in both sides of second time shape frame (2), the one side that two vertical circulation actuating mechanisms are close to each other is connected with the both sides of third time shape frame (3) respectively, the vertical circulation actuating mechanism's that is located the right side fixedly connected with horizontal circulation actuating mechanism, the right side slip of horizontal circulation actuating mechanism extends to the right side of first time shape frame (100), the right side fixed mounting of first time shape frame (100) has the drive of output shaft top and the bottom fixed connection of horizontal circulation actuating mechanism to drive The left side of the vertical circulating driving mechanism on the left side is fixedly connected with a U-shaped positioning rod (13), and the first box (100) is sleeved on the U-shaped positioning rod (13) in a sliding mode.

2. The livestock and poultry feed plane rotary grading sieve according to claim 1, wherein the vertical circulating driving mechanism comprises a mounting plate (4), moving blocks (7) are fixedly connected to both sides of the second circular frame (2) and both sides of the third circular frame (3), two mounting grooves (5) are formed in one side of the two mounting plates (4) close to each other, the moving blocks (7) are slidably mounted in the corresponding mounting grooves (5), reciprocating electric telescopic rods (6) are embedded in the inner walls of the bottoms of the two mounting grooves (5) above the two mounting grooves, the top ends of output shafts of the reciprocating electric telescopic rods (6) are fixedly connected with the bottoms of the corresponding moving blocks (7) above the two mounting grooves, and both ends of the right side of the U-shaped positioning rod (13) are fixedly connected with the left side of the mounting plate (4) on the left side.

3. The plane rotary classifying screen for livestock and poultry feed according to claim 2, characterized in that the transverse circulation driving mechanism comprises a moving plate (14), the left side of the moving plate (14) is fixedly connected with the right side of the mounting plate (4) at the right side, the right side of the moving plate (14) slidably extends to the right side of the first circular frame (100) and is fixedly connected with a fourth circular frame (15), balls (18) are embedded on the inner walls of the two sides of the fourth circular frame (15), the two balls (18) are in rolling contact with the same eccentric wheel (16), and the top end of the output shaft of the driving motor (17) is fixedly connected with the right side of the bottom of the eccentric wheel (16).

4. The livestock and poultry feed plane rotary grading screen according to claim 1, characterized in that two collision blocks (1) are fixedly connected to the inner walls of the two sides of the first clip (100), the second clip (2) and the third clip (3) are respectively located between the two corresponding collision blocks (1) and are matched with the collision blocks (1), the two collision blocks (1) on the left side are respectively in movable contact with the left side of the second clip (2) and the left side of the third clip (3), and two connecting blocks (12) are fixedly connected between the sides of the second clip (2) and the third clip (3) which are close to each other.

5. The livestock and poultry feed plane rotary grading screen according to claim 1, characterized in that a supporting plate is fixedly connected to the right side of the first frame (100), and the bottom of the driving motor (17) is fixedly connected to the top of the supporting plate.

6. The livestock and poultry feed plane rotary grading sieve according to claim 1, characterized in that the L-shaped handle (10) in the second clip-shaped frame (2) extends to above the second clip-shaped frame, the L-shaped handle (10) in the third clip-shaped frame (3) extends to above the third clip-shaped frame, both sides of the top of the second clip-shaped frame (2) and both sides of the top of the third clip-shaped frame (3) are provided with grooves, the inner wall of the bottom of each groove is fixedly connected with a first magnet, the inner wall of the top of the L-shaped handle (10) is fixedly connected with a second magnet, the bottom of the second magnet extends to the corresponding groove and is adsorbed with the top of the first magnet, and the outer side of the second magnet is in movable contact with the inner wall of the corresponding groove.

7. The livestock and poultry feed plane rotary grading screen according to claim 1, characterized in that two supporting legs are fixedly connected to two sides of the bottom of the material guide box (101), a material discharge pipe is communicated and fixed to the bottom of the material guide box (101), and a valve is fixedly connected to the bottom end of the material discharge pipe.