CN214852740U - Seed taking device, seed taking device and dibbler - Google Patents

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a seed taking device, a seed taking device and a dibbler, wherein the seed taking device comprises a seed taking seat, a finger clamp, a rotating shaft, a first torsion spring and a cam follower, the upper side and the lower side of the seed taking seat are concentric cambered surfaces, the left side of the seed taking seat is sunken rightwards to form a lap joint groove, and the right side of the seed taking seat is bulged rightwards to form a lap joint boss; the seed taking device comprises a central shaft, a fixed disc, a core disc, a movable disc, a cam plate, a seed guiding box and a seed taking device; the dibbler comprises a seed taking device and a duckbilled dibbler. The utility model has the advantages of reasonable and compact structure, through setting up left draw-in groove and right draw-in groove, the installation and the sealing between a plurality of the kind of getting of being convenient for kind of ware can increase the direct platform area of planting, through setting up spacing groove and spacer pin, prevent that the finger chuck from colliding with getting kind of a seat and damaging under the effect of first torsional spring, can reduce the fault rate, can also carry out appropriate amount adjustment according to the big or small shape of seed of different varieties to the aperture of finger chuck.

Description

Seed taking device, seed taking device and dibbler

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a seed taking device, a seed taking device and a dibbler.

Background

The seed taking device is a core working component of the dibbler for realizing precise seeding, and the performance of the seed taking device directly influences the crop planting quality and the labor cost of farmers. The seed taking device is divided into a mechanical type and a pneumatic type according to the working principle, and the pneumatic type seed sowing device has the advantages of good universality, high reliability and the like, but has the problems of complex structure, high failure rate and the like; the mechanical seed taking component disclosed in the prior art has the advantages of low single-seed rate, high hole rate, narrow application range, high mechanical damage rate of seeds in the seeding device, complex disassembly and assembly due to plant spacing change and poor economic benefit, directly reduces seeding quality and efficiency, and increases labor cost of farmers.

Disclosure of Invention

The utility model provides a seed taking device, seed taking device and dibbler has overcome above-mentioned prior art not enough, and it can effectively solve the problem that the single seed rate that current seed taking device exists is low, the hole rate is high, application scope is narrow and the mechanical breakage rate of the seed that seeder exists is high, the displacement makes the dismouting complicated, economic benefits poor.

One of the technical schemes of the utility model is realized through following measures: a seed taking device comprises a seed taking seat, a finger clamp body, a rotating shaft, a first torsion spring and a cam follower, wherein the upper side and the lower side of the seed taking seat are concentric cambered surfaces, a front-back through installation channel is arranged at the front side of the middle part of the seed taking seat, the finger clamp body with a gap between the outer side and the inner wall of the installation channel is arranged in the installation channel, the first torsion spring is arranged between the lower side of the right part of the finger clamp body and the right part of the seed taking seat, a shaft hole with the lower end extending to the right part of the installation channel is arranged at the upper side of the seed taking seat corresponding to the position of the first torsion spring, the rotating shaft with the lower end fixedly arranged with the upper side of the right part of the finger clamp body is rotatably arranged in the shaft hole, the cam follower is fixedly arranged at the upper end of the rotating shaft corresponding to the position of the upper side of the seed taking seat, a limit groove with an upward opening is arranged at the upper side of the rear part of the seed taking seat corresponding to the right position of the rotating shaft, a limit pin with the right side of the limit groove is arranged at the lower side of the cam follower, and a finger clamp plate is fixed at the left side of the lower part of the finger clamp body corresponding to the position of the seed taking seat, the left end rear side of the finger clamping plate is fixed with a finger chuck which is convex backwards and the rear end of which is contacted with the front side of the seed taking seat, the front side of the upper end of the seed taking seat corresponding to the position above the finger chuck is provided with a left clamping groove with the left end extending to the left side of the seed taking seat, and the front side of the upper end of the seed taking seat corresponding to the position on the right side of the rotating shaft is provided with a right clamping groove with the right end extending to the right side of the seed taking seat.

The following is a further optimization or/and improvement of one of the above technical solutions of the present invention:

the cam follower can comprise a crank arm, a pin shaft and a roller, wherein the crank arm is L-shaped, the lower side of the crank arm is provided with a gap between the upper side of the seed taking seat, the left end of the crank arm is fixedly installed at the upper end of a rotating shaft, the right end of the crank arm is fixedly provided with a pin shaft, the central axis of the pin shaft is arranged along the radial direction of the upper side of the seed taking seat, the roller is rotatably installed outside the pin shaft corresponding to the position above the crank arm, the outer side of the pin shaft corresponding to the position above the roller is provided with a limit ring, and the middle part of the crank arm corresponding to the position behind the rotating shaft is fixedly installed on the limit ring.

The left side of the seat of getting kind of the aforesaid can be sunken right and form the overlap joint groove, and the right side of getting kind of the seat is protruding right and is formed the overlap joint boss, follows two of circumference equipartition and adjacent position and gets between the kind of the seat, and the overlap joint boss of the seat of getting kind of the left side and the overlap joint inslot wall of the seat of getting kind of the right side are laminated mutually.

Above-mentioned get kind of a seat upper portion front side can be equipped with about link up and the ascending mounting groove of opening, can dismantle fixed mounting in the mounting groove and all be equipped with the installation apron of interval with the seat left and right sides of getting kind, be equipped with the semi-circular rear axle groove that the central axis set up along the radial direction of the seat upside of getting kind on the mounting groove rear portion inner wall that corresponds first torsion spring position, the installation apron rear side is equipped with the opening backward and can form the preceding axle groove in shaft hole with the rear axle groove.

The installation apron front side can control the interval and be equipped with two counter bores, all is equipped with the installation screw on the mounting groove rear portion inner wall that corresponds every counter bore position, and the installation apron passes screw bolt in the installation screw that corresponds the position behind the counter bore through the screw rod with get kind of a seat and can dismantle fixed mounting together.

The rear side of the mounting cover plate corresponding to the position between the two counter bores can be provided with a left limiting hole positioned on the left side of the front shaft groove and a right limiting hole positioned on the right side of the front shaft groove at intervals, and the inner wall of the rear part of the mounting groove is fixedly provided with a left limiting pin sleeved in the left limiting hole and a right limiting pin sleeved in the right limiting hole at intervals.

The inner wall of the upper part of the mounting channel corresponding to the position of the rear shaft groove can be fixed with a semicircular rear tile cover coaxially arranged on the outer side of the lower part of the rotating shaft, the lower side of the mounting cover plate corresponding to the position of the front shaft groove is fixed with a semicircular front tile cover coaxially arranged on the outer side of the lower part of the rotating shaft, and the upper side of the right part of the finger clamp is provided with an arc-shaped rotating groove with a right opening.

The above-mentioned finger clamp body right part downside that corresponds pivot position can be equipped with the annular first draw-in groove of opening decurrent circle, finger clamp body middle part downside is equipped with the second draw-in groove of opening decurrent and right-hand member and first draw-in groove intercommunication, it is equipped with the opening forward and the third draw-in groove of left end and first draw-in groove intercommunication to get kind of a seat right part front side, the spiral portion suit of first torsional spring is in first draw-in groove, the left end of first torsional spring is turned round in the arm card locates the second draw-in groove, the right-hand member of first torsional spring is turned round in the arm card locates the third draw-in groove.

The second technical scheme of the utility model is realized through following measure: a seed taking device comprises a central shaft, a fixed disc, a core disc, a movable disc, a cam plate, a seed guiding box and a seed taking device, wherein the central shaft is arranged in the front-back direction, the movable disc is hermetically and rotatably arranged on the outer side of the rear end of the central shaft, an inner shaft sleeve coaxially sleeved on the outer side of the rear part of the central shaft is fixed in the center of the front end of the movable disc, an outer shaft sleeve is rotatably arranged on the outer side of the inner shaft sleeve, the core disc is fixed on the outer side of the rear part of the outer shaft sleeve, the fixed disc detachably and fixedly mounted with the outer side of the front part of the central shaft is sleeved on the outer side of the front part of the outer shaft sleeve, a fixed ring platform extending backwards to the outer side of the fixed disc is fixed on the rear end surface of the fixed disc close to the outer side of the fixed disc, a waistband coaxially sleeved on the outer side of the core disc is arranged between the rear side of the fixed ring cover and the movable disc, a plurality of radially through seed falling holes are uniformly distributed on the waistband along the circumference, and the inner side of the waistband corresponding to the positions of each seed falling hole is detachably and fixedly mounted with the seed guiding box close to the outer side of the fixed ring platform, each seed guiding box is internally provided with a seed guiding channel communicated with the seed falling hole, two sides of the front end of each seed guiding box are respectively provided with an inserting groove with a forward opening, the rear end of the fixed ring table is uniformly provided with a plurality of seed taking devices which are in one-to-one correspondence with the seed guiding boxes along the circumference, the front side of each seed taking seat far away from the first torsion spring is close to the rear side of the outer end of the core disc, the front side of each seed taking seat close to the first torsion spring is close to the rear end of the fixed ring table, each seed taking seat of each seed taking device is fixedly installed with one side of the seed guiding box far away from the belt, the finger chuck of the lowest seed taking device is positioned above the right part of the seed guiding channel of the seed guiding box at the corresponding position, an inserting plate inserted in the inserting groove at the corresponding position is arranged between every two adjacent seed guiding boxes, the inner side of the rear part of each inserting plate is fixedly provided with a clamping block clamped between the two adjacent seed taking devices, a clearance is arranged between the front side of each fixture block and the rear end of the fixed ring table, a fan-shaped cam plate is fixedly installed on the rear side of the lower portion of the core disc corresponding to the position below the central shaft, a seed removing section, a first seed clamping section, a buffer section and a second seed clamping section are sequentially arranged on the rear side of the cam plate along the clockwise direction, the distance between the rear side surface of the first seed clamping section and the front side surface of the cam plate is the same as the distance between the rear side surface of the second seed clamping section and the front side surface of the cam plate, the distance between the rear side surface of the first seed clamping section and the front side surface of the cam plate is smaller than the distance between the rear side surface of the seed removing section and the front side surface of the cam plate, the distance between the rear side surface of the first seed clamping section and the front side surface of the cam plate is larger than the distance between the rear side surface of the buffer section and the front side surface of the cam plate, the minimum distance between the outer side surface of each roller and the front side surface of the cam plate is not larger than the distance between the rear side surface of the buffer section and the front side surface of the cam plate, the seed removing section, The first seed clamping section, the buffer section and the second seed clamping section are connected together smoothly, an arc baffle plate with a leftward opening is fixedly arranged at the rear side of the fixed disc corresponding to the right position of the central shaft, a seed blocking brush with a front end detachably and fixedly arranged with the lower part of the fixed disc is arranged between the left end of the baffle plate corresponding to the lower position of the central shaft and the inner side of the fixed ring platform, a seed storage cavity is formed at the rear side of the fixed disc, the inner side of the fixed ring platform, the front side of the core disc, the outer side of the outer shaft sleeve, the inner side of the baffle plate, the left side of the seed taking device and the front side of the corresponding fixture block, a seed unloading channel with an upper end communicated with the right end of the upper part of the seed unloading cavity is formed between the outer side of the arc baffle plate and the inner side of the fixed ring platform, a seed passing hole communicated with the seed unloading channel is arranged at the outer side of the lower part of the fixed ring platform corresponding to the right position of the seed blocking brush, an inspection hole communicated with the seed unloading channel is arranged at the right side of the fixed disc, and an observation cover is detachably and fixedly arranged in the inspection hole, the front side of the left part of the fixed disc corresponding to the left lower position of the central shaft is provided with a seed inlet hole which is communicated with the inside and the outside, and the front side of the fixed disc corresponding to the position of the seed inlet hole is detachably and fixedly provided with a seed inlet pipe.

The following is further optimization or/and improvement of the second technical scheme of the utility model:

the front end of the outer shaft sleeve can be provided with a ring groove with a forward opening, a limiting block is fixed in the ring groove corresponding to the position above the central shaft, two hinged plates are fixedly arranged at intervals on the front side of the fixed plate corresponding to the right position of the central shaft, each hinged plate is provided with a first hinged through hole, the fixed plate front side corresponding to the position of the right side of the limiting block is provided with a front limiting hole which is penetrated through from front to back, a pawl which is arranged in the annular groove at the rear end and is in contact with the right end of the limiting block at the left end is installed in the front limiting hole, the front end of the pawl penetrates through the front limiting hole and is fixedly installed at the left end of a hinged arm between hinged plates, the right end of the hinged arm is provided with a second hinged through hole corresponding to the first hinged through hole, the right end of the hinged arm penetrates through the first hinged through hole and the second hinged through hole in sequence and then is hinged with a mounting bolt provided with a mounting nut, and the mounting bolt is sleeved with a second torsion spring which enables the rear end of the pawl to be abutted against the inner wall of the rear part of the annular groove.

The front side of the right part of the fixed plate can be provided with a limit mounting hole which is through from front to back.

The fixed plate lower part front side corresponding to the left side position of the seed blocking brush can be provided with a seed cleaning hole which is communicated with the front and the back, the fixed plate front side corresponding to the seed cleaning hole position is rotatably provided with a seed cleaning door, and a bolt is arranged between the seed cleaning door and the fixed plate front side.

The third technical scheme of the utility model is realized through following measures: the utility model provides a dibbler, includes gets kind of device and duckbilled dibbler, corresponds the equal fixed mounting in waistband outside of every kind of hole position of falling and has duckbilled dibbler.

The utility model has the advantages of reasonable and compact structure, through setting up left draw-in groove and right draw-in groove, the installation and the sealing between a plurality of the kind of getting of being convenient for kind of ware can increase the direct platform area of planting, through setting up spacing groove and spacer pin, prevent that the finger chuck from colliding with getting kind of a seat and damaging under the effect of first torsional spring, can reduce the fault rate, can also carry out appropriate amount adjustment according to the big or small shape of seed of different varieties to the aperture of finger chuck.

Drawings

Fig. 1 is a schematic front view structure diagram of the first embodiment.

Fig. 2 is a schematic sectional view of the rotating shaft of fig. 1.

Fig. 3 is a schematic front view of the seed taking seat in fig. 1.

Fig. 4 is a left side sectional enlarged structural view of fig. 3.

FIG. 5 is an enlarged cross-sectional view of the mounting plate of FIG. 1 at A-A.

Fig. 6 is a schematic front view of the second embodiment.

Fig. 7 is a left side sectional structural view of fig. 6.

FIG. 8 is a schematic front view of seven seed dispensers, seven seed guiding boxes and seven insertion plates.

FIG. 9 is a schematic view of the structure of the seed-taking seat and the seed-guiding box installed together.

Fig. 10 is a schematic top view of the structure of fig. 9.

FIG. 11 is a schematic view of the FIG. 6 interposer.

Fig. 12 is a schematic view of the core disc of fig. 6.

Fig. 13 is a schematic bottom view of the cam plate of fig. 6.

Fig. 14 is an enlarged view of the pawl of fig. 6 in the direction of B.

Fig. 15 is a schematic front view of the third embodiment.

The codes in the figures are respectively: 1 is a seed taking seat, 2 is a finger clamp body, 3 is a rotating shaft, 4 is a first torsion spring, 5 is a lap joint groove, 6 is a lap joint boss, 7 is a limit groove, 8 is a limit pin, 9 is a finger clamp plate, 10 is a finger clamp head, 11 is a left clamp groove, 12 is a right clamp groove, 13 is a crank arm, 14 is a pin shaft, 15 is a roller, 16 is a limit ring, 17 is an installation channel, 18 is an installation cover plate, 19 is a front shaft groove, 20 is a rear shaft groove, 21 is a screw, 22 is a left limit pin, 23 is a right limit pin, 24 is a rear shoe cover, 25 is a front shoe cover, 26 is a first clamp groove, 27 is a second clamp groove, 28 is a third clamp groove, 29 is a central shaft, 30 is a fixed disc, 31 is a fixed ring table, 32 is a side ring cover, 33 is a core disc, 34 is an outer sleeve, 35 is a guide seed box, 36 is a movable disc, 37 is a waist belt, 38 is a relief cam plate, 39 is a relief type cam section, 40 is a first clamp section, 41 is a second buffer type clamp section, 43 for leading kind of passageway, 44 is the grafting recess, 45 is the plugboard, 46 is the fixture block, 47 is the inner sleeve, 48 is for falling the kind of a hole, 49 is the baffle, 50 is the fender kind of brush, 51 is the chamber of depositing seeds, 52 is the passageway of unloading seeds, 53 is the hole of crossing, 54 is the observation lid, 55 is the seed inlet pipe, 56 is the annular, 57 is the stopper, 58 is the articulated plate, 59 is the pawl, 60 is the articulated arm, 61 is the construction bolt, 62 is the second torsional spring, 63 is spacing mounting hole, 64 is the door of clearing, 65 is the bolt, 66 is duckbilled cavitation ware.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The invention will be further described with reference to the following examples and drawings:

the first embodiment is as follows: as shown in attached figures 1, 2, 3, 4 and 5, the seed taking device comprises a seed taking seat 1, a finger clamp 2, a rotating shaft 3, a first torsion spring 4 and a cam follower, wherein the upper side and the lower side of the seed taking seat 1 are concentric cambered surfaces, the front side of the middle part of the seed taking seat 1 is provided with a through mounting channel 17, a finger clamp 2 with a gap between the outer side and the inner wall of the mounting channel 17 is arranged in the mounting channel 17, the first torsion spring 4 is arranged between the lower side of the right part of the finger clamp 2 and the right part of the seed taking seat 1, the upper side of the seed taking seat 1 corresponding to the position of the first torsion spring 4 is provided with a shaft hole with the lower end extending to the right part of the mounting channel 17, the rotating shaft 3 with the lower end fixedly arranged with the upper side of the right part of the finger clamp 2 is rotatably arranged in the shaft hole, the upper end of the rotating shaft 3 corresponding to the position of the upper side of the seed taking seat 1 is fixedly arranged with the cam follower, the upper side of the rear part of the seed taking seat 1 corresponding to the position of the rotating shaft 3 is provided with a limiting groove 7 with an upward opening, cam follower downside is equipped with the spacer pin 8 that the right side offseted with the right side wall of spacing groove 7, it is fixed with fingergrip board 9 to correspond the finger clamp body 2 lower part left side of taking kind of seat 1 the place ahead position, fingergrip board 9 left end rear side is fixed with to the protruding finger chuck 10 that just rear end and the seat 1 front side contacted of taking kind backward, it extends to the left draw-in groove 11 of the seat 1 left of taking kind to correspond the seat 1 upper end front side of taking kind of the seat of finger chuck 10 top position to be equipped with the left end, it extends to the right draw-in groove 12 of the seat 1 right side of taking kind to correspond the seat 1 upper end front side of taking kind of the right-hand position of 3 positions of pivot to be equipped with the right-hand member.

The finger clip body 2, the finger clip plate 9 and the finger clip head 10 are integrally arranged according to requirements. In the use, through setting up left draw-in groove 11 and right draw-in groove 12, the installation and the sealing between a plurality of seed devices of getting of being convenient for can increase the direct platform area of planting, through setting up spacing groove 7 and spacer pin 8, prevent that finger chuck 10 from damaging with getting 1 collision of planting a kind of seat under the effect of first torsion spring 4, can reduce the fault rate, can also be according to the seed size and shape of different varieties, carry out appropriate amount adjustment (shorten or prolong) to finger chuck 10's aperture, the utility model discloses rational in infrastructure and compact, convenient to use has safety, laborsaving, simple and convenient, efficient characteristics.

The seed taking device can be further optimized or/and improved according to actual needs:

as shown in the attached drawings 1 and 2, the cam follower comprises a crank arm 13, a pin shaft 14 and a roller 15, the crank arm 13 is L-shaped, a gap is arranged between the lower side of the crank arm 13 and the upper side of the seed taking seat 1, the left end of the crank arm 13 is fixedly installed with the upper end of the rotating shaft 3, the right end of the crank arm 13 is fixedly provided with the pin shaft 14, the center shaft 29 line of the pin shaft 14 is arranged along the radial direction of the upper side of the seed taking seat 1, the roller 15 is rotatably installed on the outer side of the pin shaft 14 corresponding to the upper position of the crank arm 13, a limit ring 16 is arranged on the outer side of the pin shaft 14 corresponding to the upper position of the roller 15, and the middle part of the crank arm 13 corresponding to the rear position of the rotating shaft 3 is fixedly installed with the upper end of the limit pin 8.

The stop collar 16 is known in the art, such as a snap spring or an axial end stop, as desired. In the use, through setting up gyro wheel 15, can make to reduce impact and wearing and tearing to turning arm 13, through such setting, can make finger chuck 10 correspond the position through pressing down gyro wheel 15 front portion backward for finger chuck 10 keeps away from the finger chuck seat, and makes it pass through kind of storehouse, then loosens gyro wheel 15, makes finger chuck 10 press from both sides tight seed with getting kind of a seat 1 jointly, and then realizes getting of seed and gets to press from both sides, can improve precision seeding efficiency, avoids taking place cavitation.

As shown in attached figures 1 and 3, the left side of the seed taking seat 1 is recessed rightwards to form a lapping groove 5, the right side of the seed taking seat 1 is protruded rightwards to form a lapping boss 6, two seed taking seats 1 at the adjacent positions are uniformly distributed along the circumference, and the lapping boss 6 of the seed taking seat 1 at the left side is attached to the inner wall of the lapping groove 5 of the seed taking seat 1 at the right side.

According to the demand, along the circumference equipartition and between two seed taking seats 1 of adjacent position, the overlap joint boss 6 of the seed taking seat 1 of left side and the overlap joint 5 inner walls of the overlap joint groove of the seed taking seat 1 of right side accessible assorted "V" shape face are laminated mutually, also can laminate mutually through assorted plane or assorted curved surface. In the use, through setting up overlap joint groove 5 and overlap joint boss 6, can make a plurality of getting of circumference equipartition seat 1 of closely laminating each other, be convenient for get the sealed of 1 leading flank of a kind, avoid the seed to drop at the operation in-process and cause the hole, improve seeding efficiency, reduce peasant's labour cost, the dismouting of still being convenient for simultaneously.

As shown in fig. 1, 3, 4, 5, get kind of seat 1 upper portion front side and be equipped with about link up and the ascending mounting groove of opening, can dismantle fixed mounting has the installation apron 18 that the left and right sides all was equipped with the interval with getting kind of seat 1 left and right sides in the mounting groove, be equipped with the semi-circular rear axle groove 20 that the central axis set up along the radial direction of getting kind of seat 1 upside on the mounting groove rear portion inner wall that corresponds first torsion spring 4 position, installation apron 18 rear side is equipped with the opening backward and can form the front axle groove 19 in shaft hole with rear axle groove 20.

In the use, through such setting, be convenient for install pivot 3 and indicate clamp 2, reduce the installation degree of difficulty.

As shown in fig. 1, 3 and 5, two counter bores are arranged on the front side of the mounting cover plate 18 at left and right intervals, mounting screw holes are formed in the inner wall of the rear portion of the mounting groove corresponding to each counter bore, and the mounting cover plate 18 and the seed taking seat 1 are detachably and fixedly mounted together through screws 21 which penetrate through the counter bores and are screwed into the mounting screw holes at corresponding positions.

In the use, through such setting, be convenient for set up left draw-in groove 11 and right draw-in groove 12, can make along the left and right sides sealing contact of a plurality of seed devices of getting of circumference equipartition, improve the leakproofness when the finger chuck 10 presss from both sides and gets the seed, and then realize precision seeding.

As shown in fig. 1, 3 and 5, a left limit hole located at the left side of the front shaft groove 19 and a right limit hole located at the right side of the front shaft groove 19 are arranged at the rear side of the mounting cover plate 18 corresponding to the position between the two counter bores at intervals, and a left limit pin 22 sleeved in the left limit hole and a right limit pin 23 sleeved in the right limit hole are fixedly mounted on the inner wall of the rear portion of the mounting groove at intervals.

In the use, through such setting, can make the cooperation of front axle groove 19 and rear axle groove 20 more accurate, be convenient for form the shaft hole, improve the cooperation concentricity of shaft hole and pivot 3, make pivot 3 rotate in the shaft hole that front axle groove 19 and rear axle groove 20 formed in a flexible way, make the rotation that indicates clamp 2 more nimble.

As shown in fig. 1, 2, 3 and 5, a semicircular rear shoe cover 24 coaxially arranged on the outer side of the lower part of the rotating shaft 3 is fixed on the inner wall of the upper part of the mounting channel 17 corresponding to the position of the rear shaft groove 20, a semicircular front shoe cover 25 coaxially arranged on the outer side of the lower part of the rotating shaft 3 is fixed on the lower side of the mounting cover plate 18 corresponding to the position of the front shaft groove 19, and an arc-shaped rotating groove with a rightward opening is arranged on the upper right side of the finger-clamping body 2.

In the use process, through the arrangement, the support of the rotating shaft 3 can be enhanced, the rotating shaft 3 is prevented from being damaged in a stress concentration mode, and the failure rate is reduced.

As shown in fig. 1, 2 and 3, a first circular-ring-shaped slot 26 with a downward opening is disposed at the lower side of the right portion of the finger holder 2 corresponding to the position of the rotating shaft 3, a second slot 27 with a downward opening and a right end communicated with the first slot 26 is disposed at the lower side of the middle portion of the finger holder 2, a third slot 28 with a forward opening and a left end communicated with the first slot 26 is disposed at the front side of the right portion of the seed taking seat 1, a spiral portion of the first torsion spring 4 is sleeved in the first slot 26, a left end torsion arm of the first torsion spring 4 is clamped in the second slot 27, and a right end torsion arm of the first torsion spring 4 is clamped in the third slot 28.

The center axis of the spiral portion of the first torsion spring 4 is arranged in line with the center axis of the rotary shaft 3 as required. In the use, through such setting, be convenient for dismouting first torsion spring 4, the later maintenance of being convenient for.

Example two: as shown in the attached figures 6, 7, 8, 9, 10, 11, 12, 13 and 14, the seed taking device comprises a central shaft 29, a fixed disc 30, a core disc 33, a movable disc 36, a cam plate 38, a seed guiding box 35 and a seed taking device, wherein the central shaft 29 is arranged in the front-back direction, the movable disc 36 is hermetically and rotatably arranged at the outer side of the rear end of the central shaft 29, an inner shaft sleeve 47 coaxially sleeved at the outer side of the rear part of the central shaft 29 is fixed at the center of the front end of the movable disc 36, an outer shaft sleeve 34 is rotatably arranged at the outer side of the inner shaft sleeve 47, the core disc 33 is fixed at the outer side of the rear part of the outer shaft sleeve 34, the fixed disc 30 detachably and fixedly installed with the outer side of the front part of the central shaft 29 is sleeved at the outer side of the front part of the outer shaft sleeve 34, a fixed ring platform 31 extending backwards to the outer side of the fixed disc 30 is fixed at the rear end surface of the outer side of the fixed disc 30, a side ring cover 32 fixedly installed with the movable disc 36 is sleeved at the rear side of the fixed ring 37 coaxially sleeved at the outer side of the core disc 33, a plurality of seed dropping holes 48 which are radially communicated are uniformly distributed on the waistband 37 along the circumference, the inner side of the waistband 37 corresponding to the position of each seed dropping hole 48 can be fixedly and detachably provided with a seed guiding box 35 the inner side of which is close to the outer side of the fixed ring platform 31, each seed guiding box 35 is internally provided with a seed guiding channel 43 which is communicated with the seed dropping hole 48, two sides of the front end of each seed guiding box 35 are respectively provided with a splicing groove 44 with a forward opening, the rear end of the fixed ring platform 31 is uniformly and circumferentially provided with a plurality of seed taking devices which are in one-to-one correspondence with the seed guiding boxes 35, the front side of each seed taking seat 1 of each seed taking device, which is far away from the first torsion spring 4, is close to the rear side of the outer end of the core disc 33, the front side of each seed taking seat 1 of each seed taking device, which is close to the rear end of the fixed ring platform 31, each seed taking seat 1 of each seed taking device is fixedly arranged together with one side of the seed guiding box 35, which is far away from the 37, the waistband 10 of the lowest seed taking device is positioned above the right part of the seed guiding channel 43 of the seed guiding box 35 corresponding to the position, an inserting plate 45 inserted into an inserting groove 44 in a corresponding position is arranged between every two adjacent seed guiding boxes 35, a clamping block 46 clamped between two adjacent seed taking devices is fixed on the inner side of the rear portion of each inserting plate 45, a gap is arranged between the front side of each clamping block 46 and the rear end of the fixed ring table 31, a fan-shaped cam plate 38 is fixedly installed on the rear side of the lower portion of the core disc 33 in a position below the central shaft 29, a seed unloading section 39, a first seed clamping section 40, a buffer section 41 and a second seed clamping section 42 are sequentially arranged on the rear side of the cam plate 38 along the clockwise direction, the distance between the rear side of the first seed clamping section 40 and the front side of the cam plate 38 is the same as the distance between the rear side of the second seed clamping section 42 and the front side of the cam plate 38, the distance between the rear side of the first seed clamping section 40 and the front side of the cam plate 38 is smaller than the distance between the rear side of the seed unloading section 39 and the front side of the cam plate 38, and the distance between the rear side of the first seed clamping section 40 and the cam plate 38 are larger than the distance between the rear side of the buffer section 41 and the cam plate 38 The distance between the front side surfaces of the plates 38, the minimum distance between the outer side of each roller 15 and the front side surface of the cam plate 38 is not more than the distance between the rear side surface of the buffer section 41 and the front side surface of the cam plate 38, the unloading section 39, the first seed clamping section 40, the buffer section 41 and the second seed clamping section 42 are connected together smoothly, an arc baffle plate 49 with a leftward opening is fixedly arranged at the rear side of the fixed disc 30 corresponding to the right position of the central shaft 29, a seed blocking brush 50 with a front end detachably and fixedly arranged with the lower part of the fixed disc 30 is arranged between the left end of the baffle plate 49 corresponding to the lower part of the central shaft 29 and the inner side of the fixed ring platform 31, a seed storage cavity 51 is formed at the rear side of the fixed disc 30, the inner side of the fixed ring platform 31, the front side of the core disc 33, the outer side of the outer shaft sleeve 34, the inner side of the baffle plate 49, the left side of the seed blocking brush 50, the corresponding front side of the seed taking device and the corresponding front side of the fixture 46, a seed unloading channel 52 with an upper end communicated with the upper end of the seed storage cavity 51 is formed between the outer side of the arc baffle plate 49 and the inner side of the fixed ring platform 31, the fixed ring platform 31 lower part outside that corresponds the right-hand position of fender kind brush 50 is equipped with the seed hole 53 of crossing with the seed discharge passageway 52 intercommunication, the fixed disk 30 right part front side that corresponds the seed hole 53 position of crossing is equipped with the inspection hole with the seed discharge passageway 52 intercommunication, detachable fixed mounting has observation lid 54 in the inspection hole, the fixed disk 30 left part front side that corresponds the left side below position of center pin 29 is equipped with the seed inlet hole of inside and outside intercommunication, the fixed disk 30 front side that corresponds the seed inlet hole position detachable fixed mounting has seed inlet pipe 55.

According to requirements, the movable disk 36 is integrated with the inner shaft sleeve 47, the core disk 33 is integrated with the outer shaft sleeve 34, a first bearing is arranged between the inner side of the right part of the movable disk 36 and the outer side of the rear end of the central shaft 29, the rear end of the inner ring of the first bearing is contacted with a gasket which is detachably and fixedly arranged at the rear end of the central shaft 29, a dustproof cap is hermetically arranged at the inner side of the rear end of the movable disk 36 corresponding to the rear position of the first bearing, the front end of the inner ring of the first bearing is contacted with the shaft shoulder of the central shaft 29, the front end of the outer ring of the first bearing is contacted with the rear end of the inner shaft sleeve 47, a second bearing and a third bearing are respectively arranged between the outer side of the rear end and the outer side of the outer shaft sleeve 34 of the inner shaft sleeve 47, a fourth bearing is arranged between the inner side of the front end of the inner shaft sleeve 47 and the outer side of the central shaft 29, the rear end of the inner ring of the second bearing is contacted with the front end of the movable disk 36, the front end of the inner ring of the fourth bearing and the front end of the outer ring of the third bearing are contacted with the rear end of the fixed disk 30, the first bearing, the second bearing, the third bearing and the fourth bearing are all known deep groove ball bearings, a fixed pressing plate is fixedly installed on the outer side of the front part of the central shaft 29, three front fixing holes which are communicated with each other front and back are uniformly distributed on the front side of the fixed pressing plate at intervals along the circumference, rear fixing holes which are communicated with each other front and back are arranged on the front side of the fixed disc 30 corresponding to the positions of the front fixing holes, each rear fixing hole comprises a straight hole section with a circular section and a prism section with a regular hexagon section, the rear end of the straight hole section is communicated with the front end of the prism section, the fixed disc 30 and the central shaft 29 are detachably and fixedly installed together through a locking bolt which sequentially penetrates through the straight hole section and the front fixing hole at the corresponding position from back to front through a screw rod and then is screwed with a locking nut, two known adjustable fastening handles are screwed on the left side of the front side of the fixed disc 30 corresponding to the position of the observation cover 54 at intervals along the circumference, the observation cover 54 is detachably and fixedly installed together with the front side of the fixed disc 30 in a clamping manner through the end parts of the adjustable fastening handles, plugboard 45 and fixture block 46 set up integratively, get kind of a seat 1 and lead kind of a box 35 an organic whole and set up, side apron 32 and driving disk 36 are in the same place through the connecting bolt fixed mounting of a plurality of along circumference interval equipartition, the front end left and right sides that waistband 37 was kept away from to every kind of box 35 all is equipped with the grafting recess 44 that the opening is forward, every fixture block 46 both sides are formed with respectively with the left draw-in groove 11 assorted left cardboard of corresponding position and with the right draw-in groove 12 assorted right cardboard of corresponding position.

In the using process, the seed taking device and the seeder can be conveniently and rapidly assembled and can be conveniently installed on a conventional drilling seeder, the application range is wide, the actual seed clamping condition can be conveniently observed by arranging the observation cover 54 so as to be convenient to adjust, the cam plate 38 can ensure that the finger chuck 10 of the seed taking device carries out secondary seed filling on seeds, two seeds clamped during the first seed filling or one seed which is not clamped are adjusted again, so that the finger chuck 10 finally clamps only one seed, the seed filling rate is improved, the single seed rate is high, the void ratio is small, the product structure can be simplified by arranging the inserting plate 45 and the fixture block 46, the parts which are replaced during the plant distance change are reduced, the inner side of the seed guiding box 35 is close to the outer side of the fixed ring platform 31, the front side of the seed taking seat 1 of each seed taking device, which is far away from the first torsion spring 4, is close to the rear side of the outer end of the core disc 33, the front side of the seed taking seat 1 of each seed taking device, which is close to the first torsion spring 4, is close to the rear end of the fixed ring table 31, so that the mechanical damage rate of seeds during seeding can be reduced, the seed taking seat has good adaptability to various granular seeds such as corn, cotton, beans, peanuts and the like, and precision seeding can be achieved.

The seed taking device can be further optimized or/and improved according to actual needs:

as shown in fig. 6, 7 and 14, the front end of the outer sleeve 34 is provided with a ring groove 56 with a forward opening, a limit block 57 is fixed in the ring groove 56 corresponding to the position above the central shaft 29, two hinge plates 58 are fixedly installed at intervals on the front side of the fixed plate 30 corresponding to the position right of the central shaft 29, each hinge plate 58 is provided with a first hinge through hole, the front side of the fixed plate 30 corresponding to the position right of the limit block 57 is provided with a front limit hole which is through in the front and back, a pawl 59 is installed in the front limit hole, the rear end of the pawl 59 is positioned in the ring groove 56, the left end of the pawl 59 is contacted with the right end of the limit block 57, the front end of the pawl 59 is fixedly installed with the left end of the hinge arm 60 arranged between the hinge plates 58 after passing through the front limit hole, the right end of the hinge arm 60 is provided with a second hinge through hole corresponding to the first hinge through hole, the right end of the hinge arm 60 is connected with a mounting bolt 61 which is screwed with a mounting nut after passing through the first hinge through hole and the second hinge through hole in turn, the mounting bolt 61 is fitted with a second torsion spring 62 for urging the rear end of the pawl 59 against the inner wall of the rear portion of the ring groove 56.

A pawl 59 is integrally provided with a hinge arm 60 as required, and a rectangular sealing plate is fixed to the outer side of the front end of the pawl 59. During the use, when the movable disc 36 rotates in the direction opposite to the working direction, the roller 15 of the seed taking seat 1 abuts against the left side of the cam plate 38 and rotates the core disc 33 in the opposite direction, so that the finger chuck 10 of the seed taking seat 1 does not clamp seeds any more, and the seeds clamped by mistake are prevented from flowing into the pit, when the movable disc 36 rotates in the working direction, the roller 15 of the seed taking seat 1 abuts against the right side of the cam plate 38 first so that the core disc 33 rotates in the working direction, when the core disc 33 rotates to the initial position, namely the left end of the pawl 59 contacts with the right end of the limit block 57, the core disc 33 stops rotating under the action of the pawl 59, and the seed taking seat 1 continues to rotate in the working direction under the action of the movable disc 36, and contacts with the back side of the cam plate 38 to complete the seed clamping and seed discharging work, so that the seed taking device has the function that the movable disc 36 reverses and does not clamp seeds.

As shown in fig. 6, a front side of the right portion of the fixed plate 30 is provided with a front-rear through-hole 63.

According to the demand, spacing mounting hole 63 includes that the cross-section is circular shape straight hole section and cross-section are regular hexagon's prism section, and straight hole section rear end and prism section front end intercommunication. In the use, through setting up spacing mounting hole 63, can carry out spacingly or fixed through the bolt of wearing to locate in spacing mounting hole 63 when getting kind of device and rack-mount, prevent that the fixed disk 30 from rotating the back and influencing the position of falling kind of a, easy dismounting.

As shown in fig. 6 and 7, a seed cleaning hole penetrating through the front and back is formed at the front side of the lower portion of the fixed plate 30 corresponding to the left side of the seed blocking brush 50, a seed cleaning door 64 is rotatably mounted at the front side of the fixed plate 30 corresponding to the position of the seed cleaning hole, and a bolt 65 is arranged between the seed cleaning door 64 and the front side of the fixed plate 30.

In the use, through such setting, when changing the seed or stopping the seeding, be convenient for clear up the remaining seed in depositing kind of chamber 51, reduce the seeding cost.

Example three: as shown in figure 15, the dibbler comprises a seed taking device and a duckbill dibbler 66, and the duckbill dibbler 66 is fixedly arranged on the outer side of the waistband 37 corresponding to the position of each seed dropping hole 48.

The duckbill cavitator 66 may be of known art, as desired. In the use, through such setting, can increase application scope, require to change duckbilled cavitation ware 66 to the seeding of difference, improve work efficiency, be convenient for promote in the peasant household.

Above technical feature constitutes the utility model discloses an embodiment, it has stronger adaptability and implements the effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims (10)

1. A seed taking device is characterized by comprising a seed taking seat, a finger clamp body, a rotating shaft, a first torsion spring and a cam follower, wherein the upper side and the lower side of the seed taking seat are concentric cambered surfaces, the front side of the middle part of the seed taking seat is provided with a front-back through installation channel, the installation channel is internally provided with the finger clamp body with a gap between the outer side and the inner wall of the installation channel, the first torsion spring is arranged between the lower side of the right part of the finger clamp body and the right part of the seed taking seat, the upper side of the seed taking seat corresponding to the position of the first torsion spring is provided with a shaft hole with the lower end extending to the right part of the installation channel, the rotating shaft with the lower end fixedly installed with the upper side of the right part of the finger clamp body is rotatably installed in the shaft hole, the upper end of the rotating shaft corresponding to the upper side position of the seed taking seat is fixedly installed with the cam follower, the upper side of the rear part of the seed taking seat corresponding to the right side of the rotating shaft is provided with a limiting groove with a limiting pin with an upward opening, the lower side abutting against the right side wall of the limiting groove, the left side of the lower part of the finger clamp body corresponding to the front position of the seed taking seat is fixed with a finger clamp plate, the rear side of the left end of the finger clamp plate is fixed with a finger clamp head which protrudes backwards and the rear end of which is contacted with the front side of the seed taking seat, the front side of the upper end of the seed taking seat corresponding to the upper position of the finger clamp head is provided with a left clamping groove of which the left end extends to the left side of the seed taking seat, and the front side of the upper end of the seed taking seat corresponding to the right position of the rotating shaft is provided with a right clamping groove of which the right end extends to the right side of the seed taking seat.

2. The seed taking device according to claim 1, wherein the cam follower comprises a crank arm, a pin shaft and a roller, the crank arm is L-shaped, a gap is arranged between the lower side of the crank arm and the upper side of the seed taking seat, the left end of the crank arm is fixedly arranged with the upper end of the rotating shaft, the right end of the crank arm is fixedly provided with the pin shaft, the central axis of the pin shaft is arranged along the radial direction of the upper side of the seed taking seat, the roller is rotatably arranged on the outer side of the pin shaft corresponding to the upper position of the crank arm, the limiting ring is arranged on the outer side of the pin shaft corresponding to the upper position of the roller, and the middle part of the crank arm corresponding to the rear position of the rotating shaft is fixedly arranged with the upper end of the limiting pin; or/and, get the left side of kind of seat and cave in right and form the overlap joint groove, get the right side of kind of seat and arch right and form the overlap joint boss, along circumference equipartition and two of adjacent position get between the kind of seat, the overlap joint boss of the left side of getting kind of seat and the overlap joint inslot wall of the right side of getting kind of seat are laminated mutually.

3. The seed taking device according to claim 1 or 2, wherein the front side of the upper part of the seed taking seat is provided with a left and right through mounting groove with an upward opening, a mounting cover plate with a distance between the left and right sides and the left and right sides of the seed taking seat is detachably and fixedly mounted in the mounting groove, a semicircular rear shaft groove with a central axis arranged along the radial direction of the upper side of the seed taking seat is arranged on the inner wall of the rear part of the mounting groove corresponding to the position of the first torsion spring, and a front shaft groove with a rearward opening and capable of forming a shaft hole with the rear shaft groove is arranged on the rear side of the mounting cover plate.

4. The seed taking device according to claim 3, wherein two counter bores are arranged on the left and right sides of the front side of the mounting cover plate at intervals, mounting screw holes are arranged on the inner wall of the rear part of the mounting groove corresponding to each counter bore, and the mounting cover plate and the seed taking seat are detachably and fixedly mounted together through screws which penetrate through the counter bores and are screwed in the mounting screw holes at the corresponding positions; or/and a left limiting hole positioned on the left side of the front shaft groove and a right limiting hole positioned on the right side of the front shaft groove are arranged on the rear side of the mounting cover plate corresponding to the position between the two counter bores at intervals, and a left limiting pin sleeved in the left limiting hole and a right limiting pin sleeved in the right limiting hole are fixedly mounted on the inner wall of the rear part of the mounting groove at intervals.

5. The seed taking device according to claim 3, wherein a semicircular rear tile cover coaxially arranged on the outer side of the lower part of the rotating shaft is fixed on the inner wall of the upper part of the mounting channel corresponding to the position of the rear shaft groove, a semicircular front tile cover coaxially arranged on the outer side of the lower part of the rotating shaft is fixed on the lower side of the mounting cover plate corresponding to the position of the front shaft groove, and an arc-shaped rotating groove with a rightward opening is formed in the upper side of the right part of the finger clamp body; or/and, the lower side of the right part of the finger clamp body corresponding to the position of the rotating shaft is provided with a first clamping groove with a downward opening and a second clamping groove with a downward opening and a right end communicated with the first clamping groove, the front side of the right part of the seed taking seat is provided with a third clamping groove with a forward opening and a left end communicated with the first clamping groove, the spiral part of the first torsion spring is sleeved in the first clamping groove, the left end of the first torsion spring is clamped in the second clamping groove, and the right end of the first torsion spring is clamped in the third clamping groove.

6. The seed taking device according to claim 4, wherein a semicircular rear tile cover coaxially arranged on the outer side of the lower part of the rotating shaft is fixed on the inner wall of the upper part of the mounting channel corresponding to the position of the rear shaft groove, a semicircular front tile cover coaxially arranged on the outer side of the lower part of the rotating shaft is fixed on the lower side of the mounting cover plate corresponding to the position of the front shaft groove, and an arc-shaped rotating groove with a rightward opening is formed in the upper side of the right part of the finger clamp body; or/and, the lower side of the right part of the finger clamp body corresponding to the position of the rotating shaft is provided with a first clamping groove with a downward opening and a second clamping groove with a downward opening and a right end communicated with the first clamping groove, the front side of the right part of the seed taking seat is provided with a third clamping groove with a forward opening and a left end communicated with the first clamping groove, the spiral part of the first torsion spring is sleeved in the first clamping groove, the left end of the first torsion spring is clamped in the second clamping groove, and the right end of the first torsion spring is clamped in the third clamping groove.

7. A seed taking device using the seed taking device of any one of claims 1 to 6, which is characterized by comprising a central shaft, a fixed disc, a core disc, a movable disc, a cam plate, a seed guiding box and a seed taking device, wherein the central shaft is arranged in a front-back direction, the movable disc is hermetically and rotatably arranged at the outer side of the rear end of the central shaft, an inner shaft sleeve coaxially sleeved at the outer side of the rear part of the central shaft is fixed at the center of the front end of the movable disc, an outer shaft sleeve is rotatably arranged at the outer side of the inner shaft sleeve, the core disc is fixed at the outer side of the rear part of the outer shaft sleeve, the fixed disc detachably and fixedly arranged with the outer side of the front part of the central shaft is sleeved at the outer side of the front part of the outer shaft sleeve, a fixed ring platform which extends backwards to the outer side of the fixed disc is fixed at the rear end surface of the fixed disc, a side ring cover fixedly arranged with the movable disc is sleeved at the outer side of the fixed disc, a waistband coaxially sleeved at the outer side of the core disc is arranged between the rear side ring cover and the movable disc, and a plurality of seed taking holes which are radially communicated uniformly distributed along the circumference, the inner side of the waistband corresponding to the position of each seed falling hole can be detachably and fixedly provided with a seed guiding box, the inner side of the seed guiding box is close to the outer side of the fixing ring table, each seed guiding box is internally provided with a seed guiding channel communicated with the seed falling hole, two sides of the front end of each seed guiding box are respectively provided with an inserting groove with a forward opening, the rear end of the fixing ring table is uniformly provided with a plurality of seed taking devices which are in one-to-one correspondence with the seed guiding boxes along the circumference, the front side of a seed taking seat of each seed taking device, which is far away from the first torsion spring, is close to the rear side of the outer end of the core disc, the front side of the seed taking seat of each seed taking device, which is close to the first torsion spring, is close to the rear end of the fixing ring table, the seed taking seat of each seed taking device is fixedly arranged together with one side, which is far away from the waistband, of the seed guiding box at the corresponding position, a finger chuck of the lowest seed taking device is positioned above the right part of the seed guiding box at the corresponding position, and an inserting plate inserted in the inserting groove at the corresponding position is arranged between every two adjacent seed guiding boxes, a clamping block clamped between two adjacent seed taking devices is fixed on the inner side of the rear part of each insertion plate, a gap is arranged between the front side of each clamping block and the rear end of the fixed ring platform, a fan-shaped cam plate is fixedly installed on the rear side of the lower part of the core disc corresponding to the position below the central shaft, a seed unloading section, a first seed clamping section, a buffer section and a second seed clamping section are sequentially arranged on the rear side of the cam plate along the clockwise direction, the distance between the rear side surface of the first seed clamping section and the front side surface of the cam plate is the same as the distance between the rear side surface of the second seed clamping section and the front side surface of the cam plate, the distance between the rear side surface of the first seed clamping section and the front side surface of the cam plate is smaller than the distance between the rear side surface of the seed unloading section and the front side surface of the cam plate, the distance between the rear side surface of the first seed clamping section and the front side surface of the cam plate is larger than the distance between the rear side surface of the buffer section and the front side surface of the cam plate, and the minimum distance between the outer side surface of each roller and the front side surface of the cam plate are not larger than the distance between the rear side surface of the buffer section and the front surface of the cam plate, the seed unloading section, the first seed clamping section, the buffer section and the second seed clamping section are smoothly connected together, an arc baffle plate which is opened leftwards is fixedly arranged on the rear side of the fixed disc corresponding to the right position of the central shaft, a seed blocking brush with the front end detachably and fixedly arranged with the lower part of the fixed disc is arranged between the left end of the baffle plate corresponding to the lower position of the central shaft and the inner side of the fixed ring platform, a seed unloading channel with the upper end communicated with the right end of the upper part of the seed unloading cavity is formed between the rear side of the fixed disc, the inner side of the fixed ring platform, the front side of the core disc, the outer side of the outer shaft sleeve, the inner side of the baffle plate, the left side of the seed taking brush and the corresponding front side of the fixture block, a seed passing hole communicated with the seed unloading channel is arranged on the outer side of the fixed ring platform corresponding to the right position of the seed blocking brush, an inspection hole communicated with the seed unloading channel is arranged on the right side of the fixed disc corresponding to the seed passing hole, an observation cover is detachably and fixedly arranged in the inspection hole, the front side of the left part of the fixed disc corresponding to the left lower position of the central shaft is provided with a seed inlet hole which is communicated with the inside and the outside, and the front side of the fixed disc corresponding to the position of the seed inlet hole is detachably and fixedly provided with a seed inlet pipe.

8. The seed taking device as claimed in claim 7, wherein the front end of the outer sleeve is provided with a circular groove with a forward opening, a stopper is fixed in the circular groove corresponding to the position above the central shaft, two hinged plates are fixedly arranged at intervals on the front side of the fixed plate corresponding to the position right of the central shaft, each hinged plate is provided with a first hinge through hole, the front side of the fixed plate corresponding to the position right of the stopper is provided with a front stopper hole which is through from front to back, a pawl with a rear end positioned in the circular groove and a left end contacted with the right end of the stopper is arranged in the front stopper hole, the front end of the pawl is fixedly arranged with the left end of the hinged arm arranged between the hinged plates after passing through the front stopper hole, the right end of the hinged arm is provided with a second hinge through hole corresponding to the first hinge through hole, the hinged arm is hinged together by a screw rod after sequentially passing through the first hinge through hole and the second hinge through hole, the mounting bolt is sleeved with a second torsion spring which enables the rear end of the pawl to abut against the inner wall of the rear part of the annular groove.

9. The seed taking device according to claim 7 or 8, wherein a front-rear through limit mounting hole is arranged on the front side of the right part of the fixed plate; or/and a seed cleaning hole which is communicated from front to back is arranged on the front side of the lower part of the fixed disc corresponding to the left side of the seed blocking brush, a seed cleaning door is rotatably arranged on the front side of the fixed disc corresponding to the position of the seed cleaning hole, and a bolt is arranged between the seed cleaning door and the front side of the fixed disc.

10. A dibbler using the seed-taking device as claimed in any one of claims 7 to 9, comprising a seed-taking device and a duckbill dibbler, wherein the duckbill dibbler is fixedly mounted on the outer side of the belt corresponding to each seed-dropping position.

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