CN113023368A

CN113023368A - Suction type grain elevator with screening function

Info

Publication number: CN113023368A
Application number: CN202110222142.2A
Authority: CN
Inventors: 楚新叶
Original assignee: Individual
Current assignee: Yueyang Jinfu Agricultural Technology Development Co Ltd
Priority date: 2021-02-28
Filing date: 2021-02-28
Publication date: 2021-06-25
Anticipated expiration: 2041-02-28
Also published as: CN113023368B

Abstract

The invention relates to the technical field of grain elevators, and discloses a suction type grain elevator with a screening function, which comprises a main body, wherein three collecting pipes are arranged on the front wall surface of the main body, the rear wall surface of the collecting pipe positioned at the rearmost side is fixedly connected with the front wall surface of the main body, the three collecting pipes are movably connected together through a connecting device, and a discharging pipe for discharging materials is fixedly arranged on the lower wall surface of the main body. According to the invention, the driving motor rotates to drive the two linkage blocks to rotate anticlockwise, the inclined planes on the linkage blocks are continuously and alternately extruded, the linkage blocks drive the filter screen II to move downwards in the screening box, the two springs are extruded downwards, when the two discharge pipes are extruded linkage blocks, the springs recover to deform to drive the filter screen II to move upwards again in the screening box, and the effect of shaking the filter screen II is repeatedly achieved, so that grains on the filter screen are screened, stones and wood blocks are screened out, and the practicability of the equipment is greatly improved.

Description

Suction type grain elevator with screening function

Technical Field

The invention relates to the technical field of grain elevators, in particular to a suction type grain elevator with a screening function.

Background

The pneumatic grain elevator is a novel agricultural and industrial case, is suitable for bulk conveying operation of various small granular materials such as grains and plastics by pneumatically conveying the granular materials, can horizontally, obliquely and vertically convey the materials by utilizing pipeline layout, has large and small travelling wheels, is simple and convenient to operate, and can independently finish conveying tasks by a single machine. The pneumatic grain elevator is suitable for the loading, unloading, bin repairing, bin discharging, bin turning, stack reversing of farms, docks, stations, large grain depots and the like, and is suitable for the case-based operation of bulk loading, bulk transportation and bulk unloading in the production process of the industries of grain processing, feed processing, beer brewing and the like.

The biggest work load is collecting the grain that will lay on subaerial at last when sunning grain, because grain can fall into debris such as stone, billet or dust at the in-process of sunning, these debris need the clean up just can collect grain, but current suction type grain elevator does not possess the screening function for its practicality is not high. Therefore, a suction type grain elevator with a screening function is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a suction type grain elevator with a screening function, which solves the problem that the grains can be collected only after being cleaned up because the grains fall into sundries such as stones, wood blocks or dust in the airing process, but the existing suction type grain elevator does not have the screening function, so that the practicability is not high.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a suction type grain elevator with a screening function comprises a main body, wherein three collecting pipes are arranged on the front wall surface of the main body and located on the rear side, the rear wall surface of each collecting pipe is fixedly connected with the front wall surface of the main body, the three collecting pipes are movably connected together through a connecting device, a discharging pipe for discharging materials is fixedly arranged on the lower wall surface of the main body, a screening box is fixedly connected to the lower wall surface of the discharging pipe, the discharging pipe is communicated with the hollow area inside the screening box, a driving motor is fixedly arranged on the rear wall surface of the screening box, the output end of the driving motor extends forwards to reach the inside of the screening box, fan blades are fixedly arranged on the front wall surface of the output end of the driving motor, an exhaust hole is formed in the front wall surface of the screening box, a first filter screen for filtering fine dust is fixedly arranged in the exhaust hole, a second filter screen capable of moving upwards, the filter screen II is correspondingly provided with a shaking device used for driving the filter screen II to shake, the inside of the screening box is located below the filter screen II and fixedly provided with a connecting plate, the connecting plate is provided with a power assisting device, and the rear wall surface of the main body is fixedly provided with a collecting block.

Preferably, the shake device is including linkage block one and linkage block two, the activity groove has all been seted up to both sides internal face around the inside of screening case, both ends extend towards one side of keeping away from each other around filter screen two and get into the inside that corresponds the activity groove, two the equal fixed mounting in inside bottom surface in activity groove has the spring that is used for connecting filter screen two, the last wall of filter screen two corresponds the position fixed mounting of output on the driving motor and has linkage block one, linkage block one is triangular's piece, the outer wall of output corresponds the position symmetry fixed mounting of linkage block one and has two linkage blocks two that are used for extruding linkage block one on the driving motor.

Preferably, booster unit is including function post, extrusion piece, extrusion hole and rubber skin, the last wall fixed mounting of connecting plate has the function post, the last wall fixed mounting of function post has the extrusion piece, the extrusion hole has been seted up to the position that the last wall of filter screen two corresponds the extrusion piece, the inside fixed mounting in extrusion hole has the rubber skin that can deform.

Preferably, the extrusion block is a truncated cone-shaped block, the extrusion hole is a circular through hole, the shape and size of the inside of the extrusion hole are matched with those of the extrusion block, and the extrusion block is located inside the extrusion hole.

Preferably, connecting device is three including spread groove, connecting block, joint groove and joint piece the spread groove has all been seted up to the antetheca of collecting pipe, the spread groove is annular groove of circle, just the internal thread has been seted up to the internal face of spread groove, is located the front end two the equal fixed mounting of back wall of collecting pipe has the connecting block that is used for with spread groove threaded connection, and is three the joint groove that is used for the intercommunication to correspond the spread groove inside is all seted up to the outer wall of collecting pipe, two the equal fixed mounting of outer wall of connecting block has the joint piece that is used for with joint inslot portion activity joint.

Preferably, the connecting block is a circular ring-shaped block, an external thread is formed in the inner circle wall surface of the connecting block, the shape and the size of the connecting block are matched with the inner shape and the size of the connecting groove, and the clamping block is a hemispherical deformable block.

Preferably, two the last wall of activity groove has all been seted up the seal groove, the seal groove is the groove that the cross section is triangle-shaped, the equal fixed mounting in position of seal groove on the two activity grooves of both ends correspondence around the last wall of filter screen two has sealed piece, sealed piece is triangle-shaped piece, just the shape size of sealed piece with the inside shape size of seal groove agrees with mutually, two a lateral wall that sealed piece is close to each other is the inclined plane.

Preferably, a cleaning hole is formed in the right side wall surface of the screening box, and a baffle plate capable of being opened is movably connected to the inside of the cleaning hole through a hinge.

Preferably, the collecting block is an L-shaped block, the rear wall surface of the collecting block is an arc-shaped surface, and a placing groove is formed in the lower wall surface of the upper horizontal end of the collecting block.

Preferably, the placing groove is a semicircular groove, and the placing groove is communicated with the left side wall surface and the right side wall surface of the collecting block.

(III) advantageous effects

Compared with the prior art, the invention provides a suction type grain elevator with a screening function, which has the following beneficial effects:

1. this suction type pneumatic grain elevator with screening function, through setting up the shake device, when using, start main part and driving motor, inhale the inside of main part with grain through the collecting pipe, fall into on filter screen two in the inside of arranging the material pipe and arranging the screening case, driving motor rotates and drives two anticlockwise rotations of two linkage blocks, and the inclined plane on the constantly crisscross extrusion linkage block one, drive filter screen two through linkage block one and move down in the inside of screening case, and extrude two springs downwards, when two row material pipes are extrusion linkage block spring recovery deformation drive filter screen two and move up in the inside of screening case again, so reach the effect that makes two shake of filter screen repeatedly, thereby grain on it screens, will be middle stone, the billet is sieved out, the practicality that has improved this equipment greatly.

2. This suction type pneumatic grain elevator with screening function, through setting up booster unit, when filter screen two when the inside downstream of screening case, because the extrusion hole can be along with filter screen two downstream, make the extrusion piece can upwards jack-up rubber skin, and because the extrusion piece is the round platform shape, and then make filter screen two go up can form a bellied piece, because arrange the inside that the material pipe can arrange grain vertical discharge into the screening case, make grain can silted up a bit on filter screen two, influence the speed of screening, and this bellied piece can break up the grain of siltation, improve screening speed.

3. This an absorption formula pneumatic grain elevator with screening function, through setting up connecting device, because two adjacent collecting pipes, the inside quick threaded connection of preceding wall spread groove is in the same place on connecting block and the rear collecting pipe on the collecting pipe back wall that can pass through the place ahead, through can be in the same place with the inside joint that corresponds joint groove on the collecting pipe when the joint block on connecting block and the connecting groove laminating back connecting block completely, and then improve the stability of connecting, thereby make this equipment can be according to actual in service behavior, install fast or demolish the quantity of collecting pipe.

4. This suction type pneumatic grain elevator with screening function, through setting up sealed piece, when filter screen two moves down, can drive two sealed pieces and shift out the outside of seal groove, nevertheless not break away from mutually with the inside that corresponds the seal groove, and a lateral wall face that two sealed pieces are close to each other is the inclined plane for at the in-process about filter screen two, grain can not scatter the inside in two activity grooves, has avoided filter screen two to be blocked the problem that need not remove by grain when using.

5. This suction type pneumatic grain elevator with screening function through setting up the baffle, after using a period, people can open the baffle to in time clear up screening incasement portion through the clearance hole, with the normal use of assurance equipment.

6. This suction type pneumatic grain elevator with screening function, through setting up the flabellum, when arranging the in-process that the material pipe was arranged grain into the screening incasement portion, on the way of grain whereabouts, the flabellum can blow away the inside tiny dust of grain along with driving motor rotates produced flow to adsorb on filter screen one, further improve the clean and tidy nature of screening back grain.

7. This suction type pneumatic grain elevator with screening function, through setting up the standing groove, when using, people can mention this equipment through handheld collection piece, can be in the same place through standing groove and cylindrical shaft-like object card on with the collection piece, carries out quick fixed to this equipment, and then reduces workman's physical demands.

Drawings

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a partial perspective exploded view of the present invention;

FIG. 3 is a half-sectional view of a screening chamber of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the invention at B in FIG. 3.

In the figure: the device comprises a main body, a collecting pipe, a connecting groove, a connecting block, a clamping groove, a clamping block, a material discharging pipe, a screening box, a driving motor, fan blades, an exhaust hole, a filter screen I, a filter screen II, a movable groove, a spring, a linkage block I, a linkage block II, a sealing block 18, a sealing groove 19, a connecting plate 20, a functional column 21, a squeezing block 22, a squeezing hole 23, rubber sheets 24, a cleaning hole 25, a baffle plate 26, a collecting block 27, a placing groove 28, a shaking device 29, a power assisting device 30 and a connecting device 31.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a suction type grain elevator with a screening function comprises a main body 1, the main body 1 is a prior art, which is not described herein, three collecting pipes 2 are arranged on the front wall of the main body 1, the collecting pipes 2 are cylindrical hollow pipes, the rear wall surface of the collecting pipe 2 on the rearmost side is fixedly connected with the front wall surface of the main body 1, the collecting pipes 2 are communicated with the inside of the main body 1, the actual number of the collecting pipes 2 can be installed according to the actual situation, in the present scheme, three collecting pipes 2 are movably connected together through a connecting device 31, a discharging pipe 7 for discharging is fixedly installed on the lower wall surface of the main body 1, the discharging pipe 7 is a cylindrical hollow pipe, the discharging pipe 7 is communicated with the inside of the main body 1, the lower wall surface of the discharging pipe 7 is fixedly connected with a screening box 8, the screening box 8 is a rectangular box with a hollow inside, the lower wall surface of the, the discharge pipe 7 is communicated with the hollow area inside the screening box 8, the rear wall surface of the screening box 8 is fixedly provided with a driving motor 9, the driving motor 9 is the prior art and is not described in detail herein, the output end of the driving motor 9 extends forwards to reach the inside of the screening box 8, the front wall surface of the output end of the driving motor 9 is fixedly provided with a fan blade 10, the fan blade 10 is of the prior structure and is not described herein again, the front wall surface of the screening box 8 is provided with an exhaust hole 11, the exhaust hole 11 is a rectangular through hole, the inside of the exhaust hole 11 is fixedly provided with a filter screen I12 for filtering fine dust, the filter screen I12 is of the prior structure and is not described herein again, the inside of the screening box 8 is provided with a filter screen II 13 for screening which can move up and down, the filter screen II 13 is of the prior structure and is not described herein, the filter screen II 13 is correspondingly provided, the inside of screening case 8 is located the below fixed mounting of filter screen two 13 and is had connecting plate 20, and connecting plate 20 is the board of rectangle, and both ends correspond the wall fixed connection with the inside of screening case 8 around connecting plate 20, is provided with booster unit 30 on the connecting plate 20, and the rear wall fixed mounting of main part 1 has collection piece 27.

The shaking device 29 comprises a first linkage block 16 and a second linkage block 17, the inner wall surfaces of the front side and the rear side of the interior of the screening box 8 are provided with movable grooves 14, the movable grooves 14 are rectangular grooves, the front end and the rear end of the second filter screen 13 extend towards one side away from each other to enter the interior corresponding to the movable grooves 14, the bottom surfaces of the interior of the two movable grooves 14 are fixedly provided with springs 15 used for connecting the second filter screen 13, the springs 15 are of the existing structure and are not described in detail herein, the first linkage block 16 is fixedly arranged on the upper wall surface of the second filter screen 13 corresponding to the position of the upper output end of the driving motor 9, the first linkage block 16 is a triangular block, the outer wall surface of the upper output end of the driving motor 9 corresponding to the position of the first linkage block 16 is symmetrically and fixedly provided with two linkage blocks 17 used for extruding the first linkage block 16, and the.

Booster unit 30 is including function post 21, extrusion piece 22, extrusion hole 23 and rubber skin 24, the last wall fixed mounting of connecting plate 20 has function post 21, function post 21 is the columniform piece, the last wall fixed mounting of function post 21 has extrusion piece 22, extrusion hole 23 has been seted up to the last wall of filter screen two 13 corresponding extrusion piece 22's position, the inside fixed mounting in extrusion hole 23 has the rubber skin 24 that can deform, rubber skin 24 is current structure, it does not describe here any more.

When using, start main part 1 and driving motor 9, inhale main part 1's inside with grain through collecting pipe 2, the inside of arranging into screening case 8 through arranging material pipe 7 falls into on filter screen two 13, driving motor 9 rotates and drives two linkage blocks 17 anticlockwise rotations, and the inclined plane on the continuous crisscross extrusion linkage block 16, drive filter screen two 13 at the inside downstream of screening case 8 through linkage block one 16, and extrude two springs 15 downwards, spring 15 resumes deformation and drives filter screen two 13 at the inside upstream of screening case 8 again when two row material pipe 7 are extrusion linkage block one 16, so reach the effect that makes two 13 shakings of filter screen repeatedly, thereby grain to above that sieves, will be middle stone, the billet is sieved out, the practicality of this equipment has been improved greatly.

The extrusion block 22 is a truncated cone-shaped block, the extrusion hole 23 is a circular through hole, the shape and size of the interior of the extrusion hole 23 are matched with the shape and size of the extrusion block 22, and the extrusion block 22 is located inside the extrusion hole 23.

When filter screen two 13 when the inside downstream of screening case 8, because extrusion hole 23 can be along with filter screen two 13 downstream, make extrusion piece 22 can upwards jack-up rubber skin 24, and because extrusion piece 22 is the round platform shape, and then make and to form a bellied piece on the filter screen two 13, because arrange the inside that material pipe 7 can arrange grain into screening case 8 perpendicularly, make grain can silt up the little on filter screen two 13, influence the speed of screening, and this bellied piece can break up the grain of siltation, improve screening speed.

Connecting device 31 is including spread groove 3, connecting block 4, joint groove 5 and joint piece 6, spread groove 3 has all been seted up to three collecting pipe 2's antetheca, spread groove 3 is the annular groove of circle, and spread groove 3's internal thread has been seted up to the internal face, the equal fixed mounting of back wall that is located two collecting pipes 2 of front end has the connecting block 4 that is used for with spread groove 3 threaded connection, three collecting pipe 2's outer wall has all been offered and is used for the intercommunication to correspond the inside joint groove 5 of spread groove 3, joint groove 5 is the circular shape through-hole, the equal fixed mounting of outer wall of two connecting blocks 4 has the joint piece 6 that is used for with the inside activity joint in.

Connecting block 4 is the annular piece of circle, and the external screw thread has been seted up to the interior round wall of connecting block 4, the shape size of connecting block 4 and the inside shape size looks adaptation of spread groove 3, and joint piece 6 is the deformable piece of hemisphere, the shape size of joint piece 6 and the inside shape size looks adaptation of joint groove 5.

Because two adjacent collecting pipes 2, can be in the same place through the inside quick threaded connection of preceding wall spread groove 3 on connecting block 4 on the collecting pipe 2 back wall in the place ahead and rear collecting pipe 2, through can be in the same place with the inside joint that corresponds joint groove 5 on the collecting pipe 2 through joint piece 6 on connecting block 4 after connecting block 4 and spread groove 3 laminate completely, and then improve the stability of connecting, thereby make this equipment can be according to actual in service behavior, install fast or demolish the quantity of collecting pipe 2.

Seal groove 19 has all been seted up to the last wall of two movable slots 14, and seal groove 19 is the groove that the cross section is triangle-shaped, and the equal fixed mounting in position of seal groove 19 on both ends correspond two movable slots 14 around the last wall of filter screen two 13 has sealed piece 18, and sealed piece 18 is triangle-shaped's piece, and the shape size of sealed piece 18 agrees with the inside shape size of seal groove 19 mutually, and a lateral wall that two sealed pieces 18 are close to each other is the inclined plane.

When the second filter screen 13 moves downwards, the two sealing blocks 18 are driven to move out of the outer side of the sealing groove 19, but the sealing blocks are not separated from the inside of the corresponding sealing groove 19, and the side wall surfaces, close to each other, of the two sealing blocks 18 are inclined planes, so that in the process of moving the second filter screen 13 up and down, grains cannot fall into the inside of the two movable grooves 14 in a scattering mode, and the problem that the second filter screen 13 is clamped by the grains and does not move when in use is avoided.

Screening case 8's right side wall is opened there is clearance hole 25, and clearance hole 25 is the through-hole of rectangle, and there is baffle 26 that can open inside of clearance hole 25 through hinge swing joint, and baffle 26 is the piece of rectangle, and the shape size of baffle 26 and the inside shape size looks adaptation of clearance hole 25.

After using for a period of time, people can open baffle 26 to in time clear up the inside of screening case 8 through clearance hole 25, in order to guarantee the normal use of equipment.

The collecting block 27 is an L-shaped block, the rear wall surface of the collecting block 27 is an arc-shaped surface, and a placing groove 28 is formed in the lower wall surface of the upper horizontal end of the collecting block 27.

The placement grooves 28 are semicircular grooves, and the placement grooves 28 communicate with the left and right side wall surfaces of the collection block 27.

When using, people can mention this equipment through handheld collection piece 27, can be in the same place through standing groove 28 and cylindrical shaft-like object card on with collection piece 27, fix this equipment fast, and then reduce workman's physical demands.

Principle of operation

When arranging material pipe 7 and discharging grain into the inside in-process of screening case 8, on the way that grain falls, flabellum 10 can blow away the inside tiny dust of grain along with driving motor 9 rotates produced flow air to adsorb on filter screen 12, further improve the clean and tidy nature of screening back grain.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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

1. The utility model provides a suction type pneumatic grain elevator with screening function, includes main part (1), its characterized in that: the antetheca of main part (1) is provided with three collecting pipe (2), is located the last side the back wall of collecting pipe (2) and the antetheca fixed connection of main part (1), it is three collecting pipe (2) are in the same place through connecting device (31) swing joint, the lower wall fixed mounting of main part (1) has row material pipe (7) that is used for arranging the material, arrange the lower wall fixed connection of material pipe (7) and select case (8), just arrange the inside hollow region of material pipe (7) intercommunication screening case (8), the back wall fixed mounting of screening case (8) has driving motor (9), and driving motor (9) go up the output and extend forward the inside that reachs screening case (8), wall fixed mounting has flabellum (10) before the output on driving motor (9), exhaust hole (11) have been seted up to the antetheca face of screening case (8), the inside fixed mounting in exhaust hole (11) has filter screen one (12) that is used for filtering tiny dust, the inside of screening case (8) is provided with filter screen two (13) that are used for the screening that can reciprocate, it is used for driving filter screen two (13) to carry out the shake device (29) that trembles to correspond to be provided with on filter screen two (13), the below fixed mounting that the inside of screening case (8) is located filter screen two (13) has connecting plate (20), be provided with booster unit (30) on connecting plate (20), the back wall fixed mounting of main part (1) has collection piece (27).

2. The grain elevator with screening function as claimed in claim 1, wherein: shaking device (29) is including linkage piece (16) and linkage piece two (17), movable groove (14) have all been seted up to both sides internal face around the inside of screening case (8), both ends extend towards one side of keeping away from each other around filter screen two (13) and get into the inside that corresponds movable groove (14), two the equal fixed mounting in inside bottom surface of movable groove (14) has spring (15) that are used for connecting filter screen two (13), the last wall of filter screen two (13) corresponds the position fixed mounting of output on driving motor (9) and has linkage piece (16), linkage piece (16) are triangular's piece, the outer wall of output corresponds the position symmetry fixed mounting of linkage piece (16) and has two linkage pieces two (17) that are used for extruding linkage piece (16) on driving motor (9).

3. The grain elevator with screening function as claimed in claim 1, wherein: booster unit (30) are including function post (21), extrusion piece (22), extrusion hole (23) and rubber skin (24), the last wall fixed mounting of connecting plate (20) has function post (21), the last wall fixed mounting of function post (21) has extrusion piece (22), extrusion hole (23) have been seted up to the last wall of filter screen two (13) corresponding position of extrusion piece (22), the inside fixed mounting of extrusion hole (23) has rubber skin (24) that can deform.

4. The grain elevator with screening function as claimed in claim 1, wherein: the extrusion block (22) is a truncated cone-shaped block, the extrusion hole (23) is a circular through hole, the shape and size of the interior of the extrusion hole (23) are matched with the shape and size of the extrusion block (22), and the extrusion block (22) is located inside the extrusion hole (23).

5. The grain elevator with screening function as claimed in claim 1, wherein: connecting device (31) are including spread groove (3), connecting block (4), joint groove (5) and joint piece (6), three spread groove (3) have all been seted up to the antetheca of collecting pipe (2), spread groove (3) are the annular groove of circle, just the internal thread has been seted up to the internal face of spread groove (3), are located the front end two the equal fixed mounting of back wall of collecting pipe (2) has connecting block (4) that are used for with spread groove (3) threaded connection, and is three the outer wall of collecting pipe (2) all is seted up and is used for the intercommunication to correspond joint groove (3) inside joint groove (5), two the equal fixed mounting of outer wall of connecting block (4) has joint piece (6) that are used for with joint groove (5) inside activity joint.

6. The grain elevator with screening function as claimed in claim 1, wherein: connecting block (4) are the annular piece of circle, just the external screw thread has been seted up to the interior circle wall of connecting block (4), the shape size of connecting block (4) with the inside shape size looks adaptation of spread groove (3), joint piece (6) are the piece of hemisphere deformability.

7. The grain elevator with screening function as claimed in claim 1, wherein: two seal groove (19) have all been seted up to the last wall surface of activity groove (14), seal groove (19) are triangle-shaped's groove for the cross section, the equal fixed mounting in position of seal groove (19) has sealed piece (18) around the last wall surface of filter screen two (13) both ends correspondence two activity grooves (14), sealed piece (18) are triangle-shaped's piece, just the shape size of sealed piece (18) with the inside shape size of seal groove (19) agrees with mutually, two a lateral wall surface that sealed piece (18) are close to each other is the inclined plane.

8. The grain elevator with screening function as claimed in claim 1, wherein: the right side wall of screening case (8) is opened has clearance hole (25), there is baffle (26) that can open through hinge swing joint in the inside of clearance hole (25).

9. The grain elevator with screening function as claimed in claim 1, wherein: the collecting block (27) is an L-shaped block, the rear wall surface of the collecting block (27) is an arc-shaped surface, and a placing groove (28) is formed in the upper horizontal end and the lower wall surface of the collecting block (27).

10. The grain elevator with screening function as claimed in claim 1, wherein: the placing groove (28) is a semicircular groove, and the placing groove (28) is communicated with the left side wall surface and the right side wall surface of the collecting block (27).