CN109592434B - Extensible drying device for farmland crops - Google Patents

Extensible drying device for farmland crops Download PDF

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Publication number
CN109592434B
CN109592434B CN201811273796.2A CN201811273796A CN109592434B CN 109592434 B CN109592434 B CN 109592434B CN 201811273796 A CN201811273796 A CN 201811273796A CN 109592434 B CN109592434 B CN 109592434B
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plate
slot
rectangular
welded
top side
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CN109592434A (en
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不公告发明人
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Xuzhou rongchuangda Electronic Technology Co.,Ltd.
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Xuzhou Rongchuangda Electronic Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00Loading or unloading
    • B65G65/02Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/06Methods of, or means for, filling the material into the containers or receptacles by gravity flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00Packaging other articles presenting special problems
    • B65B25/02Packaging agricultural or horticultural products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00Loading or unloading
    • B65G65/30Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/32Filling devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06Chambers, containers, or receptacles
    • F26B25/063Movable containers or receptacles, e.g. carts, trolleys, pallet-boxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/10Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04Bulk
    • B65G2201/042Granular material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/06Grains, e.g. cereals, wheat, rice, corn

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Storage Of Harvested Produce (AREA)

Abstract

The invention provides an extensible airing device for farmland crops, which comprises a second plugboard and a third plugboard, wherein the second plugboard is connected with the third plugboard; the underframe is a frame shaped like a Chinese character 'tian' formed by welding six aluminum alloy square tubes; the stand columns are four in number, are aluminum alloy square tubes and are welded to four corners of the top side of the underframe; the bin is of a rectangular groove structure and is welded on the top side surface of the bottom plate; the discharge port is in a rectangular tubular shape, is arranged at the bottom of the right side surface of the storage bin and is communicated with the interior of the storage bin; the baffle cover is connected to the right end of the top side surface of the discharge port through a hinge, and a threaded hole is formed in the bottom end from left to right; the grain airing device can double and expand the grain airing area when airing grains, increases the airing area, improves the airing efficiency, is convenient to operate, has low cost, does not generate the phenomenon of grain blocking when the aired grains are collected, does not damage parts, has light weight, is convenient to walk in rural areas on mountainous and hilly lands, is convenient to use, and has the function of transporting other articles.

Description

Extensible drying device for farmland crops
Technical Field
The invention belongs to the technical field of grain airing and agricultural equipment, and particularly relates to an extensible airing device for farm crops.
Background
After the crops in the farmland are harvested, the crops need to be dried in the air, the moisture is removed, and then the crops are bagged, stored or transported to prevent the crops from sprouting or mildewing to influence the grain quality.
For example, a Chinese patent with application number CN201510189842.0 discloses a crop airing and storing device suitable for agricultural individual users, which comprises a bracket, wherein a bottom plate is arranged on the bracket, and a walking mechanism is connected below the bracket; the four corners of the bottom plate are provided with pillars, and the four edges of the upper surface of the bottom plate are connected with side plates through hinges; the surfaces of the supporting columns, which are in contact with the side plates, are provided with supporting rod grooves, supporting rods are arranged in the supporting rod grooves, and two ends of each supporting rod are respectively connected to the supporting rod grooves and the side plates; the invention aims to provide a crop airing and storing device suitable for agricultural individual users, which can realize two functions of airing and storing, has small occupied area, does not need a platform, is quick in collection and spreading, and greatly reduces the labor intensity of workers due to the fact that a walking mechanism is arranged at the bottom of the device.
Based on the above, the inventor finds that when crops are aired, due to the increase of the airing area, the airing planes of the grains are not on the same plane, when the grains are collected, the grains are stored at the right angle, and when the extending device is retracted, the grains are easily clamped into the crops, so that the grains are unsmooth in sliding or damaged.
For example, an adjustable grain collecting device for a sunning ground is published in the Chinese patent with the application number of CN201510727417.2, and comprises a vehicle body, a front plate, a rolling brush, a rear groove, a spiral conveying mechanism, a grain sucking device, a control unit and the like. Wherein, the front plate and the rear groove are arranged at the front end of the vehicle body, and the grain suction device is arranged at the rear side of the vehicle body; the vehicle body moves forwards to enable grains to be accumulated on the front plate, the accumulated grains are rolled and scraped by the rolling brush and conveyed to the rear groove, and then the grains are conveyed to the grain discharging pipe and the grain inlet bag through the spiral conveying rod; carrying out secondary collection on the leaked grains through a grain suction device; according to the thickness of the grain to be aired, the advancing speed of the vehicle body can be adjusted through the control unit, and the grain can be efficiently collected. The device is simple and convenient to operate, can be widely used for collecting grains such as corns, broomcorn, wheat, beans, rice and the like in a sunning ground, and has small grain damage rate to the grains.
Based on the above, the inventor finds that the grains need to be bagged and collected after being aired, but in vast rural areas, particularly hilly and mountain areas, roads are uneven, the grain airing area is limited, the airing field is small, the using area of a single user is very small when the grains are used in all villages, the problem of inconvenience in walking is solved when the grain airing device is used for collecting the grains, and meanwhile, the cost of the grain airing device is high when the grain airing device is used for collecting the grains aired in a unit,
in view of the above, the present invention provides an extensible airing device for farm crops, which is developed and improved in view of the existing structure and defects, and is expected to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides an extensible airing device for farm crops, which aims to solve the problems that grains are easy to clamp after being aired, damage is caused and the cost is high.
The invention relates to an extensible airing device for farmland crops, which has the purpose and the effect achieved by the following specific technical means:
an extensible airing device for farmland crops comprises an underframe, universal wheels, triangular blocks, a pin shaft, a warping plate, a bottom plate, an upright post, a storage groove, a limiting plate, a storage bin, a discharge port, a blocking cover, a fixing block, a butterfly head bolt, a top plate, a first slot, a turning plate, a second slot, a third slot, a handle, a first plug board, a second plug board and a third plug board; the underframe is a frame shaped like a Chinese character 'tian' formed by welding six aluminum alloy square tubes; the universal wheels have a braking function and are arranged at four positions and are respectively fixed at four corners of the bottom side surface of the underframe through bolt connection; the stand columns are four in number, are aluminum alloy square tubes and are welded to four corners of the top side of the underframe; the bin is of a rectangular groove structure and is welded on the top side surface of the bottom plate; the discharge port is in a rectangular tubular shape, is arranged at the bottom of the right side surface of the storage bin and is communicated with the interior of the storage bin; the baffle cover is connected to the right end of the top side surface of the discharge port through a hinge, and a threaded hole is formed in the bottom end from left to right; the fixed block is a rectangular block, is welded at the right end of the bottom side surface of the discharge port and is provided with a threaded hole concentric and coaxial with the baffle cover; the butterfly head bolt is connected to the blocking cover and the fixing block through threads; the first slot is a rectangular slot, and the first slot is arranged at the left end and the right end of the top side surface of the top plate from top to bottom in two positions; the second slot is a rectangular slot and is arranged at the left end and the right end of the bottom side surface of the turnover plate from bottom to top; the third slot is a rectangular slot and is arranged at the handle end of the bottom side surface of the turnover plate from bottom to top; the handle is provided with two parts which are bent steel bars and welded on the top side surface of the turnover plate; the first inserting plate, the second inserting plate and the third inserting plate are in a T-shaped plate shape, and when the turning plate is turned outwards, the smaller width ends of the three inserting plates are respectively inserted into the first slot, the second slot and the third slot.
Furthermore, the right end of the bottom plate is connected to the bottom frame through a hinge, and a rectangular notch is formed in the bottom of the left side face.
Furthermore, the triangular blocks are triangular plates, the vertex angles of the triangular blocks are rounded, and the triangular blocks are welded at the left end of the top side face of the underframe.
Furthermore, the wane is connected between the two triangular blocks through a pin shaft and can rotate radially around the pin shaft.
Furthermore, the storage tank has two positions, is a trapezoidal groove, and is welded on the front side surface of the upright column at the front end two positions and the rear side surface of the upright column at the rear end two positions respectively.
Furthermore, the limiting plate is a set square, has four positions, and is welded respectively at the top of the front side of the front end two upright columns and the top of the rear side of the rear end two upright columns.
Further, the roof is the rectangular plate, welds on stand top side, and rectangle ladder counter bore has been seted up to center department, and has a rectangular plate through hinge connection on this hole, can follow the hinge rotation, can seal this hole when rectangle board lid rectangle ladder counter bore, and a bevel connection groove has been seted up to rectangle board top side.
Furthermore, the turning plate is a rectangular plate which is half of the size of the top plate, is connected to the top side surface of the top plate through a hinge and can be turned outwards for 180 degrees.
Compared with the prior art, the invention has the following beneficial effects:
the setting of fixed block, with keep off the concentric same specification of screw thread on covering, be favorable to keeping off the lid and will keep off the lid through the butterfly head bolt and be fixed in on the fixed block, make both laminating to seal the discharge gate, prevent that crops from leaking.
The grain airing device can double and expand the grain airing area when airing grains, increases the airing area, improves the airing efficiency, is convenient to operate, has low cost, does not generate the phenomenon of grain blocking when the aired grains are collected, does not damage parts, has light weight, is convenient to walk in rural areas on mountainous and hilly lands, is convenient to use, and has the function of transporting other articles.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a right side view of the invention.
Fig. 3 is a schematic view of a first board structure according to the present invention.
Fig. 4 is a schematic view of a second board structure according to the present invention.
Fig. 5 is a schematic structural view of a third board of the present invention.
Fig. 6 is a front view of the rocker of the present invention.
Fig. 7 is a left side view of the rocker of the present invention.
Fig. 8 is a middle cross-sectional view of the base plate of the present invention.
Fig. 9 is a schematic view of the structure of the discharge hole of the invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1-underframe, 101-universal wheel, 102-triangular block, 103-pin shaft, 104-wane, 105-bottom plate, 2-upright post, 201-storage groove, 202-limiting plate, 3-storage bin, 301-discharge port, 302-blocking cover, 303-fixing block, 304-butterfly head bolt, 4-top plate, 401-first slot, 5-turning plate, 501-second slot, 502-third slot, 503-handle, 6-first plug board, 7-second plug board and 8-third plug board.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 9: an extensible airing device for farm crops comprises an underframe 1, universal wheels 101, a triangular block 102, a pin shaft 103, a warping plate 104, a bottom plate 105, an upright post 2, a storage groove 201, a limiting plate 202, a storage bin 3, a discharge hole 301, a blocking cover 302, a fixing block 303, a butterfly head bolt 304, a top plate 4, a first slot 401, a turning plate 5, a second slot 501, a third slot 502, a handle 503, a first plug board 6, a second plug board 7 and a third plug board 8; the underframe 1 is a frame shaped like a Chinese character 'tian' formed by welding six aluminum alloy square tubes; the universal wheels 101 have a braking function, are arranged at four positions, and are respectively fixed to four corners of the bottom side surface of the underframe 1 through bolt connection; the stand columns 2 are four in total, are aluminum alloy square tubes and are welded to four corners of the top side of the underframe 1; the bin 3 is of a rectangular groove structure and is welded on the top side surface of the bottom plate 105; the discharge port 301 is in a rectangular tubular shape, is arranged at the bottom of the right side surface of the stock bin 3 and is communicated with the interior of the stock bin 3; the baffle cover 302 is connected to the right end of the top side of the discharge hole 301 through a hinge, and the bottom end of the baffle cover is provided with a threaded hole from left to right; the fixed block 303 is a rectangular block, is welded at the right end of the bottom side surface of the discharge port 301, and is provided with a threaded hole concentric and coaxial with the baffle cover 302; the butterfly head bolt 304 is connected to the blocking cover 302 and the fixed block 303 through threads; the first slot 401 is a rectangular slot, and has two positions which are opened from top to bottom at the left end and the right end of the top side surface of the top plate 4; the second slot 501 is a rectangular slot and is arranged at the left end and the right end of the bottom side surface of the turning plate 5 from bottom to top; the third slot 502 is a rectangular slot and is opened at the end of the handle 503 on the bottom side surface of the turning plate 5 from bottom to top; the handle 503 has two positions which are bending reinforcing steel bars and are welded on the top side surface of the turning plate 5; the first inserting plate 6, the second inserting plate 7 and the third inserting plate 8 are in a T-shaped plate shape, and when the turning plate 5 is turned outwards, the smaller width ends of the three inserting plates are respectively inserted into the first slot 401, the second slot 501 and the third slot 502.
Wherein, bottom plate 105 right-hand member passes through hinge connection on chassis 1, and the rectangle breach has been seted up to left surface bottom, provides the space for the motion of wane 104, the perk of being convenient for.
The triangular block 102 is a triangular plate with an inverted vertex angle, and is welded to the left end of the top side of the underframe 1 and is a fixed support of the wane 104.
Wherein, wane 104 passes through round pin axle 103 to be connected between two triangle blocks 102, can do radial rotation around round pin axle 103, and both ends face radius about the wane, when wane 104 left end pushed down, under lever principle, the wane 104 part that is located the round pin axle 103 right-hand member upwards perk, upwards lifts bottom plate 105 left end, makes feed bin 3 slope.
The storage groove 201 is a trapezoidal groove and is welded to the front side surface of the upright post 2 at the front end and the rear side surface of the upright post 2 at the rear end respectively, and is used for storing the first inserting plate 6, the second inserting plate 7 and the third inserting plate 8 in the transfer process of the device.
The limiting plates 202 are set squares, and are welded to the tops of the front sides of the two front-end upright columns 2 and the tops of the rear sides of the two rear-end upright columns 2, respectively, to limit and support the turning plate 5 after being turned over.
Wherein, roof 4 is the rectangular plate, welds on 2 top sides of stand, and rectangle ladder counter bore has been seted up to center department, and has a rectangular plate through hinge connection on this hole, can follow the hinge rotation, can seal this hole when rectangle board lid rectangle ladder counter bore, and a bevel connection groove has been seted up to rectangular plate top side, is convenient for pull up this board with the hand to the crops that the sunning of being convenient for is good enter into feed bin 3.
Wherein, turn over board 5 total two, be the rectangular plate, be half of roof 4 size, through hinge connection on the roof side of roof 4, can outwards turn over and rotate 180 degrees, when outwards turning over and keeping flat, the sunning area increase is doubled.
The specific use mode and function of the embodiment are as follows:
in the invention, the underframe 1 is positioned at the bottom of the bottom plate 105 and is in stress demand, triangular iron blocks are welded at the inner sides of each crossed edge of the shape like the Chinese character 'tian' to balance stress, when the device is used, the device is moved to a place with sufficient light, every two turning plates 5 are turned over towards two sides and are flatly placed on the limiting plate 202, the original bottom side of the turning plate 5 and the top side of the top plate 4 are positioned on the same plane, the first inserting plate 6, the second inserting plate 7 and the third inserting plate 8 are taken out and respectively inserted into the first inserting groove 401, the second inserting groove 501 and the third inserting groove 502, a circle of enclosing plate is formed on the top side of the top plate 4, at the moment, crops are placed on the top plate 4 for airing, when the crops need to be received, the rectangular plates on the top plate are pulled open, the crops are all swept into the silo 3, the crops can be rapidly received, the operation can be rapidly carried out when weather changes occur, the baffle cover 302 is opened, crops immediately enter the bag, when the grains are less, the rocker 104 can be stepped down to incline the storage bin 3, and the residual grains are all discharged from the discharge hole 301.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (1)

1. The utility model provides an extensible drying device of farmland crops which characterized in that: the extensible airing device for the farmland crops comprises an underframe, universal wheels, triangular blocks, a pin shaft, a warping plate, a bottom plate, a stand column, a storage groove, a limiting plate, a storage bin, a discharge port, a baffle cover, a fixing block, a butterfly head bolt, a top plate, a first slot, a turning plate, a second slot, a third slot, a handle, a first plug board, a second plug board and a third plug board; the underframe is a frame shaped like a Chinese character 'tian' formed by welding six aluminum alloy square tubes; the universal wheels have a braking function and are arranged at four positions and are respectively fixed at four corners of the bottom side surface of the underframe through bolt connection; the stand columns are four in number, are aluminum alloy square tubes and are welded to four corners of the top side of the underframe; the bin is of a rectangular groove structure and is welded on the top side surface of the bottom plate; the discharge port is in a rectangular tubular shape, is arranged at the bottom of the right side surface of the storage bin and is communicated with the interior of the storage bin; the baffle cover is connected to the right end of the top side surface of the discharge port through a hinge, and a threaded hole is formed in the bottom end from left to right; the fixed block is a rectangular block, is welded at the right end of the bottom side surface of the discharge port and is provided with a threaded hole concentric and coaxial with the baffle cover; the butterfly head bolt is connected to the blocking cover and the fixing block through threads; the first slot is a rectangular slot, and the first slot is arranged at the left end and the right end of the top side surface of the top plate from top to bottom in two positions; the second slot is a rectangular slot and is arranged at the left end and the right end of the bottom side surface of the turnover plate from bottom to top; the third slot is a rectangular slot and is arranged at the handle end of the bottom side surface of the turnover plate from bottom to top; the handle is provided with two parts which are bent steel bars and welded on the top side surface of the turnover plate; the first plug board, the second plug board and the third plug board are in a T-shaped board shape, and when the turnover board is turned outwards, the smaller width ends of the three plug boards are respectively inserted into the first slot, the second slot and the third slot;
the right end of the bottom plate is connected to the bottom frame through a hinge, and the bottom of the left side surface of the bottom plate is provided with a rectangular notch;
the triangular blocks are triangular plates, the vertex angles of the triangular blocks are rounded, and the triangular blocks are welded at the left end of the top side surface of the underframe;
the wane is connected between the two triangular blocks through a pin shaft and can rotate radially around the pin shaft;
the storage grooves are trapezoidal grooves and are respectively welded on the front side surfaces of the upright columns at the two front ends and the rear side surfaces of the upright columns at the two rear ends;
the limiting plates are set squares which are welded on the tops of the front side surfaces of the upright columns at the two front ends and the tops of the rear side surfaces of the upright columns at the two rear ends respectively;
the top plate is a rectangular plate and is welded on the top side surface of the upright post, a rectangular stepped counter bore is formed in the center of the top plate, the rectangular plate is connected to the hole through a hinge and can rotate along the hinge, the hole can be sealed when the rectangular plate covers the rectangular stepped counter bore, and an inclined opening groove is formed in the top side surface of the rectangular plate;
the turning plate is a rectangular plate which is half of the size of the top plate, is connected to the top side surface of the top plate through a hinge and can be turned outwards for 180 degrees.
CN201811273796.2A 2018-10-30 2018-10-30 Extensible drying device for farmland crops Active CN109592434B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN109592434B true CN109592434B (en) 2020-11-03

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CN113371351A (en) * 2021-03-26 2021-09-10 中国矿业大学 Grain airing and storing device applied to rural residential roof
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CN108317817A (en) * 2018-04-27 2018-07-24 佛山市翔桂农机科技有限公司 A kind of agricultural planting drying device
CN108569320A (en) * 2018-06-13 2018-09-25 徐天 A kind of moving trolley for dining room rubbish foreign matter collection

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