CN218133146U - Lotus seed classified screening device - Google Patents

Abstract

The utility model discloses a lotus seed grading and screening device, relating to the technical field of lotus seed grading and screening devices, which comprises a support frame and a grading and screening unit; a box body is arranged on the upper side of the support frame, a buffer cushion is arranged on the lower side of the box body, the lower side of the box body is connected with the middle part of the upper side of the support frame in a matched mode through the buffer cushion, a feed hopper is arranged at the upper end of the rear side of the box body, three discharge hoppers are uniformly arranged on the front side of the box body in the vertical direction, and a vibration unit is arranged in the middle part of the upper side of the box body in the left-right direction; the classified screening unit includes spout one, square ring, stock and chucking subassembly, makes the square ring realize dismantling fast in the inboard of the spout one that corresponds and change the effect with the chucking through the chucking subassembly, through the rectangular shape screen cloth that forms between the inside front and back both sides of stock and square ring, can effectually avoid the lotus seeds card in the inboard effect of screen cloth, and the effect of the classified screening of the different realization of distance to the lotus seeds between two stocks.

Description

Lotus seed classifying and screening device

Technical Field

The utility model relates to a lotus seeds classified screening technical field specifically is a lotus seeds classified screening device.

Background

Lotus seeds, named as traditional Chinese medicine, are dry mature seeds of lotus of the family of Nymphaeaceae, are distributed in south and north provinces of China, have the effects of tonifying spleen and checking diarrhea, stopping leukorrhagia, tonifying kidney and arresting seminal emission, and nourishing heart and soothing nerves, are commonly used for treating spleen deficiency and diarrhea, leukorrhagia, spermatorrhea, palpitation and insomnia, are required to be sorted after being picked, and are divided into grades with different sizes;

in carrying out the screening process in grades to the lotus seeds, adopt round hole formula screening otter board, the lotus seeds card appears in the inside of screening mesh easily, influences the efficiency of screening in grades to the lotus seeds, and current screening otter board appear damaging the unable quick effect of dismantling the change of realization, for this reason, we provide a lotus seeds grading screening device.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, a lotus seed classified screening device is provided, make the square ring realize dismantling fast in the inboard of the spout one that corresponds and change the effect with the chucking through the chucking subassembly, through the rectangular shape screen cloth that forms between the inside front and back both sides of stock and square ring, can effectually avoid the lotus seeds card in the inboard effect of screen cloth, and realize the effect to the classified screening of lotus seeds through the difference of distance between two stocks, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a lotus seed grading and screening device comprises a support frame and a grading and screening unit;

a support frame: a box body is arranged on the upper side, a buffer cushion is arranged on the lower side of the box body, the lower side of the box body is connected with the middle part of the upper side of the support frame in a matching way through the buffer cushion, a feed hopper is arranged at the upper end of the rear side of the box body, three discharge hoppers are uniformly arranged on the front side of the box body along the vertical direction, and a vibration unit is arranged in the middle part of the upper side of the box body along the left-right direction;

a grading and screening unit: include spout one, the square ring, stock and chucking subassembly, the spout one of front end downward sloping is seted up along left right direction in the left side of box, and the left side of box has evenly seted up threely along upper and lower direction, the inboard of three spout one has a square ring along left right direction sliding connection respectively, the cooperation is connected between the right side of every square ring and the inside right side of box, and the upside front end of every square ring is in on the same horizontal plane with the upside rear end that goes out the hopper that corresponds, fixedly connected with stock between the inside front and back both sides of every square ring, and the inboard of square ring evenly is provided with one row of stock along left right direction, interval between two inboard stocks of upper end square ring is greater than the interval between two inboard stocks of lower extreme square ring, the inside upside left end of every spout one is provided with respectively and the chucking subassembly of cooperation connection between the upside left end of corresponding square ring.

Realize the supporting role to the box through the support frame, drive the effect that whole device realized the vibration through the vibration unit, thereby better realization is to the effect of the screening of lotus seeds, increase the cushioning performance of box downside under the effect of blotter, make the lotus seeds of treating the screening enter into the inside of box through the feeder hopper, make the square ring realize dismantling fast the change and the effect of chucking in the inboard of the spout one that corresponds through the chucking subassembly, through the rectangular shape screen cloth that forms between the inside front and back both sides of stock and square ring, can effectually avoid the inboard effect of lotus seeds card at the screen cloth, and realize the effect of the hierarchical screening to the lotus seeds through the difference of distance between two stock, the lotus seeds after the screening enter into in the corresponding collecting box of outside through the inside of the play hopper discharge box that corresponds.

Further, the chucking subassembly includes circular slot, round hole and chucking pole, and a circular slot has been seted up respectively to the upside left end of every square ring, and a round hole has been seted up along upper and lower direction respectively to the inside upside left end of every spout one, and the inboard of every round hole has a chucking pole along upper and lower direction sliding connection respectively, cooperation joint between the outside lower extreme of every chucking pole and the inboard of the circular slot that corresponds.

Gliding effect about the chucking pole that makes the correspondence under the effect of round hole realizes, under the cooperation joint effect between the inboard of the outside lower extreme of every chucking pole and the circular slot that corresponds, the joint that the rectangular shape screen cloth that makes to form between stock and the square ring is firm is in the inboard of the spout one that corresponds, when needing to dismantle, through separating between the inboard of the outside lower extreme that makes the chucking pole and the circular slot that corresponds to the realization is to the effect of the quick dismantlement change of rectangular shape screen cloth.

Further, the clamping assembly further comprises a second sliding groove and a sliding block, the second sliding groove is formed in the left side of the inner portion of each round hole respectively in the vertical direction, the sliding blocks are three, and the three sliding blocks are respectively connected with the inner sides of the corresponding second sliding grooves in a sliding mode in the vertical direction through the upper end of the left side of one clamping rod.

The sliding blocks are driven to slide along the vertical direction at the inner sides of the corresponding sliding grooves II through external force, and the clamping rods are driven to slide along the vertical direction at the inner sides of the corresponding round holes through the sliding of the sliding blocks.

Further, the chucking subassembly still includes the spring, and the inboard upper end of three round hole is fixed connection respectively has a spring, the lower extreme of three spring respectively with the upper end of the chucking pole between fixed connection.

Make the chucking pole have a decurrent power in the inboard of the round hole that corresponds under the effect of spring to the joint that stabilizes between the outside lower extreme that makes the chucking pole and the inboard of the corresponding circular slot is in the same place.

Furthermore, the classifying and screening unit further comprises a first handle and a rubber protective shell, the left side of the three square ring is provided with the first handle, and the middle part of the outer side of the first handle is clamped with the rubber protective shell respectively.

The square ring can slide on the inner side of the first sliding groove through the first handle through external force, and the softness of the middle part of the outer side of the first handle is increased through the rubber protective shell.

Further, the vibration unit includes backup pad, connecting block and vibrating motor, the upside middle part of box is provided with the backup pad along left right direction, the upside middle part of backup pad is provided with the connecting block, vibrating motor passes through the upside middle part of connecting block fixed connection in the backup pad, the vibrating motor input is connected through being connected between external control switch and external power source's the output.

Make the firm fixed connection of vibrating motor in the upside middle part of backup pad through the connecting block, drive the effect that whole device realized the vibration through vibrating motor's work to better realization is to the effect of the screening of lotus seeds.

The box body is characterized by further comprising universal wheels, supporting blocks and a second handle, wherein the universal wheels are arranged on the left side and the right side of the front end of the lower side of the supporting frame respectively, the supporting blocks are arranged on the left side and the right side of the rear end of the lower side of the supporting frame respectively, and the second handle is arranged in the middle of the rear side of the box body.

Under the condition that the universal wheel lands, the contact realization through the downside of supporting shoe and between the ground is to the fixed action of whole device position, and the effect through external force realization under handle two lifts up the rear end of whole device, makes the better effect of realizing the removal of whole device through the universal wheel after the separation between the downside of supporting shoe and ground.

Further, still include square groove and floor, a square groove has been seted up along the upper and lower direction respectively to the left and right sides both sides of the rear side upper end of box, and a floor has been welded respectively to the inboard of two square grooves, and the upside of two floors is connected with the cooperation between the downside of feeder hopper respectively.

Make the firm welding of floor in the rear side upper end of box through the square groove, increase the support stability of feeder hopper through the floor.

Compared with the prior art, the beneficial effects of the utility model are that: this lotus seeds classified screening device has following benefit:

1. the lotus seed grading and screening device is provided with a universal wheel, a supporting block and a second handle, under the condition that the universal wheel lands on the ground, the fixing effect on the position of the whole device is realized through the contact between the lower side of the supporting block and the ground, the lifting of the rear end of the whole device is realized through external force under the effect of the second handle, and the whole device is better moved through the universal wheel after the lower side of the supporting block is separated from the ground;

2. the lotus seed grading and screening device is provided with the vibration unit, the vibration motor is fixedly and stably connected to the middle of the upper side of the supporting plate through the connecting block, and the whole device is driven to realize the vibration effect through the work of the vibration motor, so that the lotus seed screening effect is better realized;

3. the lotus seed grading and screening device is provided with grading and screening units, under the matching clamping action between the lower end of the outer side of each clamping rod and the inner side of the corresponding circular groove, a long strip-shaped screen formed between a long rod and a square ring is stably clamped on the inner side of a first sliding groove, and the lower end of the outer side of each clamping rod is separated from the inner side of the corresponding circular groove when the lotus seed grading and screening device needs to be disassembled, so that the effect of quickly disassembling and replacing the long strip-shaped screen is realized;

4. make the square ring realize dismantling fast in the inboard of the spout one that corresponds and change the effect with the chucking through the chucking subassembly, through the rectangular shape screen cloth that forms between the inside front and back both sides of stock and square ring, can effectually avoid the lotus seeds card in the inboard effect of screen cloth, and the effect of the hierarchical screening of realization to the lotus seeds through the difference of distance between two stock.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

FIG. 3 is a rear view of the present invention;

fig. 4 is a left side sectional view of the present invention.

In the figure: the device comprises a support frame 1, a box body 2, a cushion pad 3, a feed hopper 4, a discharge hopper 5, a vibration unit 6, a support plate 61, a connecting block 62, a vibration motor 63, a grading screening unit 7, a chute I71, a chute square ring 72, a long rod 73, a circular groove 74, a circular hole 75, a clamping rod 76, a chute II 77, a slide block 78, a spring 79, a handle I710, a rubber protective shell 711, a universal wheel 8, a supporting block 9, a handle II 10, a square groove 11 and a rib plate 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the first embodiment is as follows: a lotus seed grading and screening device comprises a support frame 1 and a grading and screening unit 7;

support frame 1: the upper side of the box body 2 is provided with a box body 2, the lower side of the box body 2 is provided with a cushion pad 3, the lower side of the box body 2 is in fit connection with the middle part of the upper side of the support frame 1 through the cushion pad 3, the upper end of the rear side of the box body 2 is provided with a feed hopper 4, the front side of the box body 2 is uniformly provided with three discharge hoppers 5 along the vertical direction, and the middle part of the upper side of the box body 2 is provided with a vibration unit 6 along the left-right direction;

the classification screening unit 7: include spout 71, square ring 72, stock 73 and chucking subassembly, a spout 71 of front end downward sloping is seted up along left right direction in the left side of box 2, and the left side of box 2 has evenly seted up threely along upper and lower direction, there is a square ring 72 inboard along left right direction sliding connection respectively of three spout 71, the cooperation is connected between the right side of every square ring 72 and the inside right side of box 2, and the upside front end of every square ring 72 and the upside rear end of the play hopper 5 that corresponds are in on the same horizontal plane, fixedly connected with stock 73 between the inside front and back both sides of every square ring 72, and the inboard of square ring 72 evenly is provided with one row of stock 73 along left right direction, the interval between two inboard stock 73 of upper end square ring 72 is greater than the interval between two inboard stock 73 of lower extreme square ring 72, the inside upside left end of every spout 71 is provided with one respectively and the chucking subassembly of cooperation connection between the upside left end of the corresponding square ring 72.

Realize the supporting role to box 2 through support frame 1, drive the effect that whole device realized the vibration through vibration unit 6, thereby better realization is to the effect of the screening of lotus seeds, increase the cushioning property of box 2 downside under the effect of blotter 3, make the lotus seeds of treating the screening enter into the inside of box 2 through feeder hopper 4, make square ring 72 realize quick dismantlement change and the effect of chucking in the inboard of corresponding spout one 71 through the chucking subassembly, through the rectangular shape screen cloth that forms between stock 73 and the inside front and back both sides of square ring 72, can effectually avoid the lotus seeds card at the inboard effect of screen cloth, and realize the effect to the hierarchical screening of lotus seeds through the difference of distance between two stock 73, the inside of the box 2 that discharges through the play hopper 5 that correspond after the screening enters into in the corresponding collecting box of outside.

The clamping assembly comprises a circular groove 74, a circular hole 75 and a clamping rod 76, the left end of the upper side of each square ring 72 is provided with the circular groove 74, the left end of the upper side of the inner part of each sliding groove 71 is provided with the circular hole 75 along the vertical direction, the inner side of each circular hole 75 is slidably connected with the clamping rod 76 along the vertical direction, and the lower end of the outer side of each clamping rod 76 is connected with the inner side of the corresponding circular groove 74 in a matched and clamped mode.

Make the gliding effect from top to bottom of corresponding chucking pole 76 realization under the effect of round hole 75, under the cooperation joint effect between the inboard of the outside lower extreme of every chucking pole 76 and the circular slot 74 that corresponds, make the joint that the rectangular shape screen cloth that forms between stock 73 and the square ring 72 is firm in the inboard of the spout 71 that corresponds, when needing to dismantle, separate between the inboard of the outside lower extreme through making chucking pole 76 and the circular slot 74 that corresponds to the realization is to the effect of the quick dismantlement change of rectangular shape screen cloth.

The clamping assembly further comprises a second sliding groove 77 and three sliding blocks 78, the second sliding groove 77 is formed in the left side of the inner portion of each round hole 75 in the vertical direction, and the three sliding blocks 78 are connected with the inner sides of the corresponding second sliding grooves 77 in a sliding mode in the vertical direction through the upper end of the left side of each clamping rod 76.

The sliding blocks 78 are driven by external force to slide along the up-down direction on the inner sides of the corresponding sliding grooves 77, and the clamping rods 76 are driven by the sliding of the sliding blocks 78 to slide along the up-down direction on the inner sides of the corresponding round holes 75.

The clamping assembly further comprises springs 79, the inner upper ends of the three round holes 75 are fixedly connected with one spring 79 respectively, and the lower ends of the three springs 79 are fixedly connected with the upper ends of the corresponding clamping rods 76 respectively.

The chucking rods 76 are forced downward at the inner sides of the corresponding circular holes 75 by the springs 79, so that the outer lower ends of the chucking rods 76 are stably engaged with the inner sides of the corresponding circular grooves 74.

The classifying and screening unit 7 further comprises a first handle 710 and a rubber protective shell 711, the first handle 710 is arranged on the left side of each of the three square rings 72, and the rubber protective shell 711 is clamped in the middle of the outer side of each of the three first handles 710.

The square ring 72 can slide on the inner side of the first sliding groove 71 through the first handle 710 by external force, and the softness of the middle part of the outer side of the first handle 710 is increased through the rubber protective shell 711.

Example two:

the difference between this embodiment and the first embodiment is:

in this embodiment, the vibration unit 6 includes the backup pad 61, connecting block 62 and vibrating motor 63, and the upside middle part of box 2 is provided with the backup pad 61 along the left-right direction, and the upside middle part of backup pad 61 is provided with connecting block 62, and vibrating motor 63 passes through connecting block 62 fixed connection at the upside middle part of backup pad 61, and the vibrating motor 63 input is connected through being connected between the output of external control switch and external power source.

Make the firm fixed connection of vibrating motor 63 in the upside middle part of backup pad 61 through connecting block 62, drive whole device through vibrating motor 63's work and realize the effect of vibration to better realization is to the effect of the screening of lotus seeds.

Example three:

the difference between the present embodiment and the first embodiment is:

in this embodiment, the portable box further comprises universal wheels 8, supporting blocks 9 and a second handle 10, the left side and the right side of the lower front end of the supporting frame 1 are respectively provided with one universal wheel 8, the left side and the right side of the lower rear end of the supporting frame 1 are respectively provided with one supporting block 9, and the middle part of the rear side of the box body 2 is provided with the second handle 10.

Under the condition that the universal wheel 8 lands on the ground, the fixing effect on the position of the whole device is realized through the contact between the lower side of the supporting block 9 and the ground, the rear end of the whole device is lifted up through external force under the effect of the second handle 10, and the whole device is better moved through the universal wheel 8 after being separated from the ground under the supporting block 9.

Still include square groove 11 and floor 12, the left and right sides both sides of the rear side upper end of box 2 have seted up a square groove 11 along the upper and lower direction respectively, and floor 12 has been welded respectively to the inboard of two square grooves 11, and the upside of two floor 12 is connected with the cooperation between the downside of feeder hopper 4 respectively.

The rib plate 12 is firmly welded to the upper rear end of the casing 2 through the square groove 11, and the support stability of the feed hopper 4 is increased by the rib plate 12.

When in use:

the supporting function of the box body 2 is realized through the supporting frame 1, the vibrating motor 63 is fixedly connected to the middle part of the upper side of the supporting plate 61 through the connecting block 62, the whole device is driven to realize the vibrating function through the work of the vibrating motor 63, thereby better realizing the sieving function of the lotus seeds, the buffering performance of the lower side of the box body 2 is increased under the action of the buffering cushion 3, the lotus seeds to be sieved are enabled to enter the box body 2 through the feeding hopper 4, the rib plates 12 are enabled to be welded at the upper end of the rear side of the box body 2 stably through the square grooves 11, the supporting stability of the feeding hopper 4 is increased through the rib plates 12, the sliding blocks 78 are driven to slide along the up and down direction at the inner sides of the corresponding sliding grooves two 77 through the external force, the clamping rods 76 are driven to slide along the up and down direction at the inner sides of the corresponding round holes 75 through the sliding of the sliding blocks 78, the square rings 72 realize the sliding function at the inner sides of the sliding grooves one 71 through the external force through the handle one 710, the softness of the middle part of the outer side of the first handle 710 is increased through the rubber protective shell 711, under the matching clamping action between the lower end of the outer side of each clamping rod 76 and the inner side of the corresponding circular groove 74, the strip-shaped screen formed between the long rod 73 and the square ring 72 is firmly clamped on the inner side of the corresponding sliding groove 71, the clamping rods 76 have downward force on the inner sides of the corresponding circular holes 75 under the action of the springs 79, so that the lower ends of the outer sides of the clamping rods 76 and the inner sides of the corresponding circular grooves 74 are firmly clamped together, when disassembly is needed, the lower ends of the outer sides of the clamping rods 76 are separated from the inner sides of the corresponding circular grooves 74, the effect of quick disassembly and replacement of the strip-shaped screen is realized, and the effect of the lotus seeds clamped on the inner sides of the screen can be effectively avoided through the strip-shaped screen formed between the long rod 73 and the front side and the rear side of the inner part of the square ring 72, and the effect of grading screening of lotus seeds is realized through the difference of the distance between the two long rods 73, the screened lotus seeds are discharged from the inside of the box body 2 through the corresponding discharge hopper 5 and enter into the corresponding collecting box outside, under the condition that the universal wheels 8 land, the fixing effect on the position of the whole device is realized through the contact between the lower side of the supporting block 9 and the ground, the rear end of the whole device is lifted up through external force under the effect of the two handles 10, and the effect of better realizing movement of the whole device is realized through the universal wheels 8 after the separation between the lower side of the supporting block 9 and the ground.

It should be noted that the vibration motor 63 disclosed in this embodiment is a YZS-5-2 type vibration motor, and the control switch is used to control the vibration motor 63 to operate according to a method commonly used in the prior art.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a lotus seeds classified screening device which characterized in that: comprises a support frame (1) and a grading screening unit (7);

support frame (1): a box body (2) is arranged on the upper side of the box body (2), a cushion pad (3) is arranged on the lower side of the box body (2), the lower side of the box body (2) is connected with the middle part of the upper side of the support frame (1) in a matching way through the cushion pad (3), a feed hopper (4) is arranged at the upper end of the rear side of the box body (2), three discharge hoppers (5) are uniformly arranged on the front side of the box body (2) along the vertical direction, and a vibration unit (6) is arranged on the middle part of the upper side of the box body (2) along the left-right direction;

classifying and screening unit (7): include spout one (71), square ring (72), stock (73) and chucking subassembly, the left side of box (2) is followed left right direction and is seted up spout one (71) of front end downward sloping, and the left side of box (2) has evenly seted up threely along upper and lower direction, the inboard of three spout one (71) has one square ring (72) along left right direction sliding connection respectively, the cooperation is connected between the right side of every square ring (72) and the inside right side of box (2), and the upside front end of every square ring (72) is in on the same horizontal plane with the upside rear end of the play hopper (5) that corresponds, fixedly connected with stock (73) between the inside front and back both sides of every square ring (72), and the inboard of square ring (72) is evenly provided with one row of stock (73) along left right direction, the interval between two inboard stock (73) of upper end square ring (72) is greater than the interval between two inboard stock (73) of lower extreme square ring (72), the inside upside left end of every spout one (71) is provided with the left side of corresponding square ring (72) respectively and connects the left end of the left side subassembly.

2. The lotus seed grading and screening device as claimed in claim 1, wherein: the clamping assembly comprises a circular groove (74), a round hole (75) and clamping rods (76), wherein the round groove (74) is formed in the left end of the upper side of each square ring (72) respectively, a round hole (75) is formed in the left end of the upper side of each sliding groove (71) respectively in the upper and lower directions, the inner side of each round hole (75) is respectively connected with one clamping rod (76) in a sliding mode in the upper and lower directions, and the lower end of the outer side of each clamping rod (76) is connected with the inner side of the corresponding circular groove (74) in a matched mode.

3. The lotus seed grading and screening device as claimed in claim 2, wherein: the clamping assembly further comprises a second sliding groove (77) and a sliding block (78), the left side of the inner portion of each round hole (75) is provided with the second sliding groove (77) in the up-down direction, the sliding blocks (78) are three, and the three sliding blocks (78) are respectively connected with the inner sides of the corresponding second sliding grooves (77) in the up-down direction in a sliding mode through the upper end of the left side of one clamping rod (76).

4. The grading and screening device for lotus seeds according to claim 2, characterized in that: the clamping assembly further comprises springs (79), the upper ends of the inner sides of the three round holes (75) are fixedly connected with the springs (79), and the lower ends of the three springs (79) are fixedly connected with the upper ends of the corresponding clamping rods (76).

5. The lotus seed grading and screening device as claimed in claim 1, wherein: the grading screening unit (7) further comprises a first handle (710) and a rubber protective shell (711), the left sides of the three square rings (72) are respectively provided with the first handle (710), and the middle parts of the outer sides of the first handles (710) are respectively clamped with the rubber protective shell (711).

6. The lotus seed grading and screening device as claimed in claim 1, wherein: vibration unit (6) include backup pad (61), connecting block (62) and vibrating motor (63), the upside middle part of box (2) is provided with backup pad (61) along the left and right directions, the upside middle part of backup pad (61) is provided with connecting block (62), vibrating motor (63) are through connecting block (62) fixed connection in the upside middle part of backup pad (61), electric connection between the output that vibrating motor (63) input passes through external control switch and external power source.

7. The lotus seed grading and screening device as claimed in claim 1, wherein: the multifunctional box is characterized by further comprising universal wheels (8), supporting blocks (9) and a second handle (10), wherein the universal wheels (8) are arranged on the left side and the right side of the front end of the lower side of the supporting frame (1), the supporting blocks (9) are arranged on the left side and the right side of the rear end of the lower side of the supporting frame (1), and the second handle (10) is arranged in the middle of the rear side of the box body (2).

8. The lotus seed grading and screening device as claimed in claim 1, wherein: still include square groove (11) and floor (12), a square groove (11) has been seted up along upper and lower direction respectively to the left and right sides both sides of the rear side upper end of box (2), and floor (12) have been welded respectively to the inboard of two square grooves (11), and the upside of two floor (12) is connected with the cooperation between the downside of feeder hopper (4) respectively.

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