CN109757156B

CN109757156B - Hand-push seeder

Info

Publication number: CN109757156B
Application number: CN201910184751.6A
Authority: CN
Inventors: 乔阳; 郭培全; 王守仁; 杨学锋; 宋玉玮; 张浩波
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2023-09-05
Anticipated expiration: 2039-03-12
Also published as: CN109757156A

Abstract

The hand-push type seeder is used for realizing seeding operation of small farmland. Including the automobile body, be equipped with the handrail on the automobile body, characterized by still includes: a frame arranged at the top of the vehicle body; a plurality of seed storage boxes fixed in the frame, wherein the upper parts of the seed storage boxes are seed storage cavities, the lower parts of the seed storage boxes are rotatably provided with seed taking wheels, conveying channels are arranged in the seed taking wheels, falling holes are arranged between the outer walls of the seed taking wheels and the seed storage cavities, and a driving mechanism for driving the seed taking wheels to rotate in a reciprocating manner is arranged in the frame; a seeding pipe fixed at the bottom of the seed storage box; the insertion pipe is arranged at the lower part of the seeding pipe in a sliding way, and a push-pull mechanism for driving the insertion pipe to move up and down along the seeding pipe is arranged between the stand and the insertion pipe. The hand-push type seeder provided by the invention is convenient to operate, and when in use, seeds are placed in the seed storage box and then the trolley body is pushed to move; seed taking and seeding one by one to realize one pit; only one person is needed to finish the operation, and the labor is saved.

Description

Hand-push seeder

Technical Field

The invention relates to the technical field of sowing, in particular to a hand-push type sowing machine.

Background

During sowing, the pit is dug firstly, then crop seeds are put into the pit, and finally the soil pit is buried. In the above manner, the operator needs to squat down continuously, and is tired easily. Therefore, there is an urgent need for a hand-push type seeder that is applied to seeding operations in small farmlands.

Disclosure of Invention

The invention aims to provide a hand-push type seeder which is used for realizing seeding operation of small farmland.

The technical scheme adopted for solving the technical problems is as follows: hand propelled seeder, including the automobile body, be equipped with the handrail on the automobile body, characterized by still includes:

a frame arranged at the top of the vehicle body;

the seed storage device comprises a plurality of seed storage boxes fixed in a frame, wherein the upper parts of the seed storage boxes are seed storage cavities, seed taking wheels are rotatably arranged at the lower parts of the seed storage boxes, conveying channels are arranged in the seed taking wheels, falling holes are formed between the outer walls of the seed taking wheels and the seed storage cavities, driving mechanisms for driving the seed taking wheels to rotate in a reciprocating manner are arranged in the frame, each driving mechanism comprises a pair of gears which are rotatably arranged in the frame and are arranged front and back, racks arranged on the left side and the right side of each gear, a pair of cams rotatably arranged at the upper part of the frame, a synchronizing shaft for connecting the two cams, a driven sprocket fixed on the synchronizing shaft, a driving sprocket rotatably arranged on a bracket, a chain is arranged between the racks and the frame in a sliding manner, a bracket is fixedly arranged on the side surface of the frame, and the driving sprocket is rotatably arranged on the bracket, and the driving sprocket is connected with a front wheel through a belt transmission;

a seeding pipe fixed at the bottom of the seed storage box;

the insertion pipe is arranged at the lower part of the seeding pipe in a sliding way, and a push-pull mechanism for driving the insertion pipe to move up and down along the seeding pipe is arranged between the stand and the insertion pipe;

the side wall of the lower part of the seeding pipe is provided with a long groove, a baffle plate is hinged in the long groove, a torsion spring is arranged between the baffle plate and the seeding pipe, the upper end of the baffle plate is arranged at the inner side of the seeding pipe under the action of the torsion spring, and the inner wall of the insertion pipe is provided with a protrusion which is arranged in the long groove in a sliding way;

the front support leg and the rear support leg are fixed at the bottom of the vehicle body, the front wheel is rotatably mounted on the front support leg, the movable support leg is hinged to the rear support leg, the locking unit is arranged between the rear support leg and the movable support leg, the rear wheel is rotatably mounted on the movable support leg, the locking unit comprises a sliding plate, a locking pin and a spring, the sliding plate is slidably arranged in a sliding cavity on the rear support leg, the locking pin is fixed on the sliding plate, the spring is arranged between the sliding plate and the inner wall of the sliding cavity, and the locking pin is inserted into the locking hole on the movable support leg under the action of the spring.

Further, the rear supporting leg is of an inverted U-shaped structure, two movable supporting legs are respectively hinged to the left end and the right end of the rear supporting leg, a torsion spring is arranged between the movable supporting legs and the rear supporting leg, rear wheels are separated from the ground under the action of the torsion spring, and a pedal rod is arranged between the two movable supporting legs.

Further, the push-pull mechanism comprises a rotating wheel coaxially arranged with the driving chain wheel and a connecting rod arranged between the edge of the rotating wheel and the insertion pipe, wherein the first end of the connecting rod is hinged with the insertion pipe, and the second end of the connecting rod is hinged with the outer wall of the rotating wheel.

Further, a supporting lug is arranged on the side wall of each insertion tube, and a first connecting shaft is arranged between the supporting lugs on all insertion tubes; the first end of the connecting rod is hinged with the first connecting shaft, the second end of the connecting rod is hinged with the fixed rod on the rotating wheel, and the rotating wheel is provided with two front and rear sides which are respectively provided with a driving sprocket.

The beneficial effects of the invention are as follows: the hand-push type seeder provided by the invention is convenient to operate, and when in use, seeds are placed in the seed storage box and then the trolley body is pushed to move; seed taking and seeding one by one to realize one pit; only one person is needed to finish the operation, and the labor is saved.

Drawings

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

FIG. 2 is a schematic view of a seed taking and sowing unit;

FIG. 3 is an internal schematic view of the seed taking and sowing unit;

FIG. 4 is a schematic diagram of the assembly of the seed storage box and the seeding pipe;

FIG. 5 is a top view of the seed taking and sowing unit;

FIG. 6 is an enlarged view of a portion of FIG. 4 at A;

FIG. 7 is a schematic view of the assembly of the cannula;

FIG. 8 is a schematic view of the assembly of the rear legs with the rear wheels;

in the figure: the device comprises a vehicle body, 11 handrails, 12 diagonal braces, 13 front legs, 14 front wheels, 15 rear legs, 16 movable legs, 161 locking holes, 162 hinging shafts, 17 rear wheels, 18 pedal levers, 2 sliding cavities, 21 sliding plates, 22 locking pins, 23 springs, 3 racks, 31 seed storage boxes, 311 falling holes, 312 round cavities, 313 inclined surfaces, 32 seed taking wheels, 321 conveying channels, 33 seeding pipes, 331 long grooves, 332 baffles, 34 rotating shafts, 35 gears, 36 racks, 37 cams, 38 synchronous shafts, 381 driven sprockets, 382 driving sprockets, 383 rotating wheels, 384 fixing rods, 39 brackets, 391 wheel cavities, 4 insertion pipes, 41 lug plates, 42 connecting rods, 43 bulges, 44 tips, 45 first connecting shafts, 46 second connecting shafts, 47 lugs and 5 storage boxes.

Detailed Description

As shown in fig. 1 to 8, the present invention mainly includes a vehicle body 1, a front leg 13, a front wheel 14, a rear leg 15, a movable leg 16, a rear wheel 17, a locking unit, and a seed taking sowing unit, and is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a vehicle body 1 is a basic component and a bearing component of the present invention, a handrail 11 is arranged at the top of the rear side of the vehicle body, and a diagonal brace 11 is arranged between the handrail and the vehicle body for ensuring the stability of the handrail. Two front legs 13 are fixed at the bottom of the front side of the vehicle body, and front wheels 14 are rotatably mounted on the front legs. The bottom of the rear side of the vehicle body is fixed with a rear supporting leg 15, as shown in fig. 8, the rear supporting leg is of an inverted U-shaped structure, two ends of the rear supporting leg are respectively hinged with a movable supporting leg 16, and the movable supporting leg is provided with a hinge shaft 162 so as to facilitate the hinged connection of the movable supporting leg and the rear supporting leg. A torsion spring is arranged between the movable supporting leg and the rear supporting leg, and an obtuse included angle is formed between the movable supporting leg and the vertical rear supporting leg under the action of the torsion spring. A pedal lever 18 is fixed between the two movable supporting legs, a locking hole 161 is arranged on the movable supporting leg, a locking unit is arranged between the movable supporting leg and the rear supporting leg, the movable supporting leg and the rear supporting leg are arranged in a collinear way under the action of the locking unit, and at the moment, the rear wheels are in contact with the ground.

As shown in fig. 8, the locking unit comprises a sliding plate 21 arranged in a sliding cavity 2 on the rear supporting leg in a sliding manner, a locking pin 22 fixed on the sliding plate, and a spring 23 arranged between the sliding plate and the inner wall of the sliding cavity, wherein the locking pin stretches into one section of the locking hole under the action of the spring, so that the movable supporting leg and the rear supporting leg are locked and fixed relatively.

The seed taking and sowing unit is arranged on the vehicle body, seeds are obtained one by one through the seed taking and sowing unit, and then the seeds are sowed in soil. As shown in fig. 3 and 4, the frame 3 is a main body of a seed taking and sowing unit, the frame is of a cuboid hollow structure, a plurality of seed storage boxes 31 which are arranged at equal intervals are fixed in an inner cavity of the frame, as shown in fig. 4, the upper parts of the seed storage boxes are seed storage cavities, the bottoms of the seed storage cavities are inclined planes 313, round cavities 312 are arranged at the lower parts of the seed storage cavities, and falling holes 311 are formed between the seed storage cavities and the round cavities. A seed taking wheel 32 is rotatably arranged in the circular cavity, and the diameter of the seed taking wheel is the same as the inner diameter of the circular cavity. A conveying channel 321 is arranged in the seed taking wheel, the conveying channel is composed of two sections of linear cavities, and a seeding pipe 33 is fixed at the bottom of the seed storage box. Seeds in the seed storage cavity enter the conveying channel through the falling hole and then enter the sowing pipe through the conveying channel. A rotating shaft 34 is rotatably installed in the frame and is used for relatively and fixedly connecting seed taking wheels in all seed storage boxes together, as shown in fig. 5, gears 35 are respectively and fixedly installed at two ends of the rotating shaft, racks 36 are respectively arranged at the left side and the right side of each gear, as shown in fig. 3, the racks are engaged with the corresponding gears, and the racks are in up-down sliding connection with the frame. A pair of cams 37 are rotatably mounted on the left side of the frame and contact the tops of the corresponding racks, and when the cams rotate, the racks rotate and move linearly relative to the cams. As shown in fig. 5, the cams are connected together by a synchronizing shaft 38 that rotates in synchronism with the cams. A driven sprocket 381 is fixed to the synchronizing shaft, a bracket 39 is fixed to the left side of the frame, a driving sprocket 382 is rotatably mounted on the bracket, and a chain is provided between the driving sprocket and the driven sprocket. The support is provided with two wheel cavities, a rotating wheel 383 is arranged in the wheel cavity, and the two rotating wheels and the driving sprocket are coaxially arranged. A fixed rod 384 is fixed on the rotating wheel, and the driving sprocket is connected with the front wheel through belt transmission and chain transmission.

The lower part of the seeding pipe is provided with a cannula 4, as shown in fig. 3, 4 and 6, the cannula is a round pipe and is arranged outside the seeding pipe and is connected with the seeding pipe in a sliding way up and down. The bottom of the cannula is a tip 44, the upper part of the cannula is fixed with an ear plate 41, a first connecting shaft 45 is arranged among the ear plates on all the cannula, a pair of connecting rods 42 are hinged on the first connecting shaft, the lower ends of the connecting rods are hinged with the first connecting shaft, and the upper ends of the two connecting rods are connected through a second connecting shaft 46 to realize synchronous action. Each connecting rod is provided with a supporting lug 47 which is used for being hinged with a fixed rod on the corresponding rotating wheel, thus a crank block mechanism is formed among the rotating wheel, the fixed rod, the connecting rod, the insertion pipe and the seeding pipe. The seed storage box, the seeding pipe, the seed taking wheel, the driving mechanism, the push-pull mechanism and the insertion pipe form a seed taking seeding unit, the gear, the rack, the cam, the synchronous shaft, the driving sprocket and the driven sprocket form the driving mechanism, and the rotating wheel, the connecting rod and the supporting lugs form the push-pull mechanism.

The outer wall of the lower part of the seeding pipe is provided with a long groove 331, a baffle 332 is hinged in the long groove, a torsion spring is arranged between the baffle and the seeding pipe, and the upper end of the baffle is arranged at the inner side of the seeding pipe under the action of the torsion spring. A protrusion 43 is provided on the inner wall of the cannula and slidably disposed within the elongated slot. When the insertion pipe moves downwards, the bulge contacts with the lower end of the baffle plate and then presses the baffle plate, so that the upper end of the baffle plate moves from the inner side of the seeding pipe to the long groove, and at the moment, seeds on the baffle plate fall under the dead weight.

In order to facilitate the addition of seeds into the seed storage box, a storage box 5 is arranged on the vehicle body, and seeds are placed in the storage box.

The following describes the method of use of the invention:

(1) Placing seeds to be sown into the storage box, and placing the seeds into the seed storage box;

(2) Holding the armrests, pushing the vehicle body to walk along a straight line, and taking out and sowing seeds one by one through the seed taking and sowing unit in the process of rotating the front wheels; in this in-process, after conveyer way and whereabouts hole intercommunication, deposit seed in the seed case and get into the conveyer way, after conveyer way and seeding pipe intercommunication, the seed gets into the seeding pipe and falls on the baffle, along with the rotation of preceding wheel, promotes the intubate through push-pull mechanism and moves down to the lower extreme of extrusion baffle makes baffle upper end outwards expand, makes the seed whereabouts, and the intubate inserts soil and then brings the seed into soil simultaneously.

Claims

1. Hand propelled seeder, including the automobile body, be equipped with the handrail on the automobile body, characterized by still includes:

a frame arranged at the top of the vehicle body;

a seeding pipe fixed at the bottom of the seed storage box;

2. The hand propelled seeder of claim 1, wherein the rear support leg is of an inverted U-shaped structure, the movable support leg is provided with two movable support legs and is hinged with the left end and the right end of the rear support leg respectively, a torsion spring is arranged between the movable support leg and the rear support leg, the rear wheel is separated from the ground under the action of the torsion spring, and a pedal lever is arranged between the two movable support legs.

3. The hand propelled seeder of claim 1, wherein the push-pull mechanism comprises a runner coaxially arranged with the drive sprocket, and a link disposed between the rim of the runner and the cannula, a first end of the link being hinged to the cannula, and a second end of the link being hinged to an outer wall of the runner.

4. The hand propelled seeder of claim 1, wherein lugs are arranged on the side wall of each insertion tube, and a first connecting shaft is arranged between lugs on all insertion tubes; the first end of the connecting rod is hinged with the first connecting shaft, the second end of the connecting rod is hinged with the fixed rod on the rotating wheel, and the rotating wheel is provided with two front and rear sides which are respectively provided with a driving sprocket.