CN113196916A

CN113196916A - Finger-clamping seed taking device, adjustable seed taking device and adjustable dibbler

Info

Publication number: CN113196916A
Application number: CN202110577256.9A
Authority: CN
Inventors: 张书祥; 张述功; 陈立凡; 孟磊
Original assignee: Manasi Xianghe Farm Machinery Co ltd
Current assignee: Manasi Xianghe Farm Machinery Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-08-03
Anticipated expiration: 2041-05-26
Also published as: CN113196916B

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a finger-clamping type seed taking device, an adjustable seed taking device and an adjustable dibbler. The invention has reasonable and compact structure, is convenient for the installation and the sealing among a plurality of finger-clamping type seed extractors by arranging the left clamping groove and the right clamping groove, can increase the area of a direct seed feeding platform, is beneficial to the falling of seeds after the finger chuck is loosened by arranging the seed sliding groove, ensures that the seeds to be sowed fall into the pit in time to complete the sowing, prevents the seed chuck from falling into other positions, can always keep a certain distance between the finger chuck and the front side of the seed extracting seat by arranging the limiting groove and the limiting pin, prevents the finger chuck from colliding and damaging the seed extracting seat under the action of the first torsion spring, reduces the failure rate, can shorten the movement distance of the finger chuck, improves the efficiency, and can also carry out proper adjustment on the opening degree of the finger chuck according to the sizes and shapes of different varieties of seeds.

Description

Finger-clamping seed taking device, adjustable seed taking device and adjustable dibbler

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a seed taking device, an adjustable seed taking device and an adjustable 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 failure rate of finger clamps, high void rate and narrow application range, and the mechanical damage rate of seeds in the seeding device is high, the plant distance is changed, so that the disassembly and assembly or adjustment process is complicated, the sealing performance is poor, the economic benefit is poor, the seeding quality and efficiency are directly reduced, the labor cost of farmers is increased, and the mechanical seed taking component is inconvenient to popularize in farmers.

Disclosure of Invention

The invention provides a seed taking device, a seed taking device and a dibbler, which overcome the defects of the prior art and can effectively solve the problems of low single seed rate, high finger chuck failure rate, high void rate and narrow application range of the conventional seed taking device, high mechanical damage rate of seeds, complicated disassembling and adjusting process due to plant distance change, poor sealing property and poor economic benefit of the conventional seed taking device.

One of the technical schemes of the invention is realized by the following measures: a finger-clamping 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, 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 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 an upward opening, the lower side of the cam follower is provided with a limiting pin which is abutted against the right side wall of the limiting groove, and the left side of the lower part of the finger clamp body corresponding to the front part of the seed taking seat is fixedly installed with a finger clamp plate, the finger splint left end rear side is fixed with to be equipped with gapped finger chuck between protruding and rear end and the seat front side of getting kind of a, the seat front side of getting kind that corresponds finger chuck rear position is equipped with the lower extreme and extends to the seat downside of getting kind and be big end down's swift current kind groove, the seat upper end front side of getting kind that corresponds finger chuck top position is equipped with the left end and extends to the left draw-in groove of the seat of getting kind, the seat upper end front side of getting kind that corresponds the right-hand position of pivot is equipped with the right-hand member and extends to the right draw-in groove of the seat right side of getting kind.

The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the 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 arranged on 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 arranged on the outer side of the pin shaft corresponding to the position above the crank arm, a limiting ring is arranged on the outer side of the pin shaft corresponding to the position above the roller, and the middle part of the crank arm corresponding to the position behind the rotating shaft is detachably and fixedly arranged on the limiting pin.

The left side of the seed taking seat can be rightwards sunken to form a V-shaped overlapping groove, the right side of the seed taking seat is rightwards bulged to form a V-shaped overlapping boss, two seed taking seats along the circumference are evenly distributed and adjacent positions, and the overlapping boss of the seed taking seat on the left side is attached to the inner wall of the overlapping groove of the seed taking seat on the right side.

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 invention is realized by the following measures: an adjustable 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 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, a side ring cover fixedly mounted with the movable disc is sleeved on the outer side of the fixed disc, a waistband coaxially sleeved on the outer side of the core disc, a plurality of seed falling hole groups are uniformly distributed on the waistband along the circumference, each seed falling hole group comprises at least two seed falling holes which are uniformly distributed at intervals and radially communicated along the circumference, the inner side of the waistband corresponding to each seed falling hole position in one group of seed falling hole groups 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 fixed ring table, each seed guiding box is internally provided with a seed guiding channel communicated with the seed falling hole at the corresponding position, 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 distributed with 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 device, 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 device, close to the first torsion spring, is close to the rear end of the fixed ring table, the seed taking seat of each seed taking device is fixedly arranged with one side of the seed guiding box at the corresponding position, far away from the waistband, a finger chuck of the lowest seed taking device is positioned above the right part of the conducting channel 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, the inner side of the rear part of each insertion plate is fixed with a clamping block clamped between two adjacent seed taking devices, a gap is arranged between the front side of each clamping block and the rear end of the fixed ring table, the rear side of the lower part of the core disc corresponding to the position below the central shaft is provided with a fan-shaped cam plate, a plurality of T-shaped adjusting grooves are uniformly distributed on the inner ring surface of the cam plate along the circumference at intervals, adjusting holes corresponding to the adjusting grooves and communicated with the rear ends of the adjusting grooves are arranged on the rear side of the cam plate, adjusting screw holes are arranged on the rear side of the core disc corresponding to the positions of the adjusting holes, adjusting bolts with front ends screwed in the adjusting screw holes at corresponding positions are arranged in each adjusting groove, 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 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 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 first 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 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 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 unloading section, the first seed clamping section, the buffer section and the second seed clamping section are connected together in a smooth manner, the right side of the seed unloading section is provided with a climbing surface, the rear side of the movable disk corresponding to the position of the cam plate is provided with a front-back through inspection hole, the rear side of the movable disk corresponding to the position of the inspection hole is fixedly provided with an inspection cover in a detachable manner, the rear side of the fixed disc corresponding to the right position of the central shaft is provided with an arc baffle plate with a left opening, the left end corresponding to the lower position of the central shaft is provided with a seed baffle brush with the lower part of the fixed ring platform in a detachable manner together with the fixed baffle plate, the fixed disk rear side, the fixed ring platform is inboard, the core disc front side, the outer axle sleeve outside, the baffle is inboard, keep off kind brush left side, the seed deposit chamber is formed to the planting species front side that corresponds and the fixture block front side that corresponds, form between the cowl outside and the fixed ring platform inboard and unload the kind passageway, the fixed ring platform lower part outside that corresponds the right-hand position of the seed brush is equipped with the hole of crossing with unloading kind passageway intercommunication, the fixed disk right part front side that corresponds the hole position is equipped with and unloads kind passageway intercommunication and be sectorial inspection hole, be equipped with the observation lid of front end open-ended box structure in the inspection hole, the observation lid front end outside is fixed with the sealing frame that outside arch and rear end and fixed disk front side contacted, the fixed disk lower part that corresponds the observation lid top position is equipped with left closing device and right closing device that can compress tightly the observation lid along the circumference interval, right closing device is the same with left closing device structure, left closing device includes handle, seed brush left side closing device, The front side of the fixed disc corresponding to the upper position of the left part of the observation cover is provided with a rotating screw hole, the upper part of the handle is provided with a rotating through hole which is communicated with the front and the back, the handle and the fixed disc are screwed together by the compressing bolt in the rotating screw hole after penetrating through the rotating through hole by the back end, the compressing spring is arranged between the compressing bolt and the handle, the front side of the observation cover is fixed with an arc supporting table which is coaxially arranged with the rotating screw hole, the inner side of the sealing frame corresponding to the position of the supporting table is provided with a disassembly gap which is communicated with the inside and the outside, the lower end of the handle is fixed with a sliding table of which the back side is abutted against the front side of the supporting table, the upper end of the handle is fixed with a limiting plate of which the back side is provided with a distance with the front side of the fixed disc, the front sides of the fixed discs corresponding to the two sides of the limiting plate are both fixed with locking plates, the front side of the left end of the locking plate positioned at the left side is smoothly transited with the front side of the fixed disc, the left lower position of the central shaft is provided with a hole which is communicated with the inside and the outside, the front side of the fixed plate 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 invention:

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 clear kind of hole that link up around the above-mentioned fixed disk lower part front side that corresponds seed blocking brush left side position can be equipped with, the fixed disk front side rotation that corresponds clear kind of hole position installs clear kind of a door, clear kind of a door middle part is fixed with two fixed plates at the interval about, the jack that link up about all being equipped with on every fixed plate, the fixed disk front portion that corresponds the jack position is equipped with the slot left of opening, the fixed plate left side that corresponds the left side is equipped with the bolt that inserts the slot after the right-hand member passed the jack in proper order, the bolt right part outside fixed mounting that corresponds position between two fixed plates has the picture peg, the bolt outside cover that corresponds position between picture peg left side and the fixed plate right side of left side is equipped with compression spring.

The waistband outside that above-mentioned every kind of hole position that falls corresponds all can have four connecting holes that radially link up along circumference interval distribution, and the one end that the kind box of leading of every adjustable kind of getting device is close to the waistband all is equipped with "T" shape mounting groove corresponding with the connecting hole, and every "T" shape mounting groove all communicates with the kind box both sides of leading that corresponds the position.

The third technical scheme of the invention is realized by the following measures: the utility model provides a dibbler with adjustable, get kind of device including adjustable, fixing bolt and duckbilled cavitation ware, it all is equipped with duckbilled cavitation ware to correspond every waistband outside of leading kind of box position, all be equipped with the fixed mounting hole corresponding with the connecting hole on the bottom plate of every duckbilled cavitation ware, every duckbilled cavitation ware all passes fixed mounting hole and the connecting hole that corresponds in proper order and with the card locate the fixing bolt that the fixed nut spiro union in the mounting groove is in the same place through the screw rod from outer to inner with the waistband after.

The invention has reasonable and compact structure, is convenient for the installation and the sealing among a plurality of finger-clamping type seed extractors by arranging the left clamping groove and the right clamping groove, can increase the area of a direct seed feeding platform, is beneficial to the falling of seeds after the finger chuck is loosened by arranging the seed sliding groove, ensures that the seeds to be sowed fall into the pit in time to complete the sowing, prevents the seed chuck from falling into other positions, can always keep a certain distance between the finger chuck and the front side of the seed extracting seat by arranging the limiting groove and the limiting pin, prevents the finger chuck from colliding and damaging the seed extracting seat under the action of the first torsion spring, reduces the failure rate, can shorten the movement distance of the finger chuck, improves the efficiency, and can also carry out proper adjustment on the opening degree of the finger chuck according to the sizes and shapes of different varieties of seeds.

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 perspective enlarged structural view of the finger clip body in fig. 1.

Fig. 4 is a schematic front view of the seed taking seat in fig. 1.

Fig. 5 is a left side sectional enlarged structural view of fig. 4.

FIG. 6 is an enlarged sectional view of the mounting plate of FIG. 1 at A-A.

Fig. 7 is a schematic front view of the second embodiment.

Fig. 8 is a left side sectional structural view of fig. 7.

FIG. 9 is a schematic front view of seven seed dispensers, seven seed guiding boxes and seven insertion plates.

FIG. 10 is a schematic view of the structure of the seed-taking seat and the seed-guiding box installed together.

Fig. 11 is a schematic top view of fig. 10.

FIG. 12 is a schematic view of the interposer of FIG. 7.

Fig. 13 is a front view of the core disc of fig. 7.

Fig. 14 is a front view of the fixed disk of fig. 7.

FIG. 15 is a rear view partially in section of the cam plate of FIG. 7.

Fig. 16 is a bottom enlarged view of the cam plate of fig. 7.

Fig. 17 is an enlarged view of the pawl of fig. 7 in the direction of B.

Fig. 18 is a left side sectional enlarged view of the handle of fig. 7.

FIG. 19 is an expanded view of the waistband having 6, 7 and 8 seed holes spaced apart circumferentially in the second embodiment.

Fig. 20 is a schematic front view of the third embodiment.

FIG. 21 is a left side cross-sectional structural view of FIG. 20.

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 a mounting channel, 18 is a mounting 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 seed groove, 30 is a fixed plate, 31 is a fixed ring table, 32 is a side ring cover, 33 is a core plate, 34 is an outer shaft sleeve, 35 is a seed guiding box, 36 is a movable plate, 37 is a waist belt, 38 is a cam plate, 39 is a relief type section, 40 is a first clamp section, 41 is a second buffer section, 43 is a seed guide channel, 44 is a plug groove, 45 is a plug board, 46 is a fixture block, 47 is an inner shaft sleeve, 48 is a seed falling hole, 49 is a baffle plate, 50 is a seed blocking brush, 51 is a seed storage cavity, 52 is a seed removing channel, 53 is a seed passing hole, 54 is an observation cover, 55 is a seed inlet pipe, 56 is an annular groove, 57 is a limit block, 58 is a hinge plate, 59 is a pawl, 60 is a hinge arm, 61 is a mounting bolt, 62 is a second torsion spring, 63 is a limit mounting hole, 64 is a seed cleaning door, 65 is a bolt, 66 is a central shaft, 67 is an adjusting groove, 68 is an adjusting bolt, 69 is an inspection cover, 70 is a sealing frame, 71 is a handle, 72 is a support table, 73 is a sliding table, 74 is a limit plate, 75 is a lock plate, 76 is a compression bolt, 77 is a disassembly notch, 78 is a right compression device, 79 is a fixing plate, 80 is a plug board, 81 is a compression spring, 82 is a duckbill cavitator, and 83 is a fixing bolt.

Detailed Description

The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.

In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of 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 is further described with reference to the following examples and figures:

the first embodiment is as follows: as shown in attached figures 1, 2, 3, 4, 5 and 6, the finger-clamping 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 mounting channel 17 which is through from front to back, a finger clamp 2 with a gap is arranged between the outer side and the inner wall of the mounting channel 17 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 upper side position 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 right part of the rotating shaft 3 is provided with a limiting groove 7 with an upward opening, the cam follower downside is equipped with the spacer pin 8 that the right side and 7 right side walls of spacing groove offset, it is fixed with fingergrip board 9 to correspond the finger clamp body 2 lower part left side of taking kind of a seat 1 place ahead position, fingergrip board 9 left end rear side is fixed with behind the arch and rear end and is equipped with gapped finger chuck 10 between taking kind of a seat 1 front side, it extends to taking kind of a seat 1 downside and is big end down's swift current kind of a groove 29 to correspond the 1 front side of taking kind of a seat of finger chuck 10 rear position to be equipped with the lower extreme, it extends to the left draw-in groove 11 of taking kind of a seat 1 to correspond the 1 upper end front side of taking kind of a seat 1 upper end of finger chuck 10 top position to be equipped with the left end, it extends to the right draw-in groove 12 on taking kind of a seat 1 right side to correspond the right-hand position of pivot 1 upper end front side of taking kind of a seat 1 of 3 right-hand position.

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 process, the left clamping groove 11 and the right clamping groove 12 are arranged, so that the installation and the sealing among a plurality of finger-clamping type seed taking devices are convenient, the area of a direct seed feeding platform can be increased, the finger clamp 10 is loosened to be beneficial to the falling of seeds, the seeds to be sowed can fall into a pit in time to complete the sowing, the seed clamps are prevented from falling at other positions and being beneficial to realizing precision sowing, the finger clamp 2 corresponding to the position above the finger clamp plate 9 has a better function of fixing the seeds during the seed taking, the limiting groove 7 and the limiting pin 8 are arranged to always keep a certain distance between the finger clamp 10 and the front side of the seed taking seat 1, the finger clamp 10 is prevented from being collided and damaged with the seed taking seat 1 under the action of the first torsion spring 4, the failure rate can be reduced, the movement distance of the finger clamp 10 can be shortened, the efficiency is improved, and the seed taking device can be used for different varieties of seeds, the opening of the finger chuck 10 is appropriately adjusted (shortened or lengthened).

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

as shown in the attached figures 1, 2 and 3, 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 formed 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, a central shaft 66 line of the pin shaft 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 position above the crank arm 13, a limit ring 16 is arranged on the outer side of the pin shaft 14 corresponding to the position above the roller 15, and the middle part of the crank arm 13 corresponding to the position behind the rotating shaft 3 is detachably and 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, the detachable fixed mounting is in the same place in the middle of turning arm 13 and 8 upper ends of spacer pin, be more convenient for get kind of seat 1, pivot 3, the installation of finger clamp body 2 and turning arm 13, through setting up gyro wheel 15, can make and reduce impact and wearing and tearing to turning arm 13, through such setting, can make finger clamp head 10 pass through backward pressing down gyro wheel 15 front portion in corresponding position, make finger clamp head 10 keep away from the finger clamp seat, and make it pass through kind of storehouse, then loosen gyro wheel 15, make finger clamp head 10 press from both sides the tight seed with getting kind of seat 1 jointly, and then realize the clamp of seed and get, can improve precision seeding efficiency, avoid taking place hole phenomenon.

As shown in attached figures 1 and 4, the left side of the seed taking seat 1 is recessed rightwards to form a V-shaped overlapping groove 5, the right side of the seed taking seat 1 is protruded rightwards to form a V-shaped overlapping boss 6, two seed taking seats 1 at adjacent positions are uniformly distributed along the circumference, and the overlapping boss 6 of the seed taking seat 1 at the left side is attached to the inner wall of the overlapping groove 5 of the seed taking seat 1 at the right side.

According to the demand, along the circumference equipartition and between two of adjacent position seat 1 of getting kind, the overlap joint boss 6 of the seat 1 of getting kind of a left side also can laminate mutually through assorted plane or assorted curved surface with the 5 inner walls of the overlap joint groove of the seat 1 of getting kind of a right side. 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 sealing 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, overlap joint groove 5 and overlap joint boss 6 are "V" shape, reduce the preparation degree of difficulty.

As shown in fig. 1, 4, 5 and 6, the front side of the upper part of the seed taking seat 1 is provided with a left and right through mounting groove with an upward opening, the mounting groove is internally provided with a mounting cover plate 18 with a distance between the left and right sides and the left and right sides of the seed taking seat 1 in a detachable and fixed manner, the inner wall of the rear part of the mounting groove corresponding to the position of the first torsion spring 4 is provided with a semicircular rear shaft groove 20 with a central axis arranged along the radial direction of the upper side of the seed taking seat 1, and the rear side of the mounting cover plate 18 is provided with a front shaft groove 19 with a backward opening and capable of forming a shaft hole with the rear shaft 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, 4 and 6, two counter bores are arranged on the left side and the right side of the front side of the mounting cover plate 18 at 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 in the mounting screw holes corresponding to the 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, 4 and 6, 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, 3, 4 and 6, 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 part 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 fig. 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, the adjustable seed taking device comprises a central shaft 66, 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 66 is arranged in the front-back direction, the movable disc 36 is hermetically and rotatably arranged on the outer side of the rear end of the central shaft 66, an inner shaft sleeve 47 coaxially sleeved on the outer side of the rear part of the central shaft 66 is fixed in the center of the front end of the movable disc 36, an outer shaft sleeve 34 is rotatably arranged on the outer side of the inner shaft sleeve 47, the core disc 33 is fixed on the outer side of the rear part of the outer shaft sleeve 34, the fixed disc 30 fixedly installed on the outer side of the front part of the central shaft 66 is sleeved on 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 on the rear end surface of the fixed disc 30, a side ring cover 32 fixedly installed on the outer side of the movable disc 36, a waistband 37 coaxially sleeved on the outer side of the core disc 33 is arranged between the rear side of the fixed disc 30, a plurality of seed falling hole groups are uniformly distributed on the belt 37 along the circumference, each seed falling hole group comprises at least two seed falling holes 48 which are uniformly distributed along the circumference at intervals and are radially communicated, a seed guide box 35 the inner side of which is close to the outer side of the fixed ring platform 31 is detachably and fixedly arranged at the inner side of the belt 37 corresponding to the position of each seed falling hole 48 in one group of seed falling hole groups, a seed guide channel 43 which is communicated with the seed falling hole 48 at the corresponding position is arranged in each seed guide box 35, inserting grooves 44 with forward openings are arranged at the two sides of the front end of each seed guide box 35, seed taking devices which are one-to-one corresponding to the seed guide boxes 35 are uniformly distributed at the rear end of the fixed ring platform 31 along the circumference, 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 fixed ring platform 31, and the seed taking seat 1 of each seed taking device is fixedly arranged with one side of the seed guide box 35 at the corresponding position, which is far away from the belt 37, the finger chuck 10 of the seed taking device positioned at the lowest position is positioned above the right part of the conduction channel of the seed guiding box 35 at the corresponding position, an inserting plate 45 inserted in the inserting groove 44 at the corresponding position is arranged between every two adjacent seed guiding boxes 35, a clamping block 46 clamped between the two adjacent seed taking devices is fixed at the inner side of the rear part 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 arranged at the rear side of the lower part of the core disc 33 at the position corresponding to the lower part of the central shaft 66, a plurality of T-shaped adjusting grooves 67 are uniformly distributed at intervals along the circumference in the inner ring surface of the cam plate 38, adjusting holes corresponding to the adjusting grooves 67 and communicated with the rear ends of the adjusting grooves 67 are arranged at the rear side of the core disc 33 at the position corresponding to each adjusting hole, adjusting bolts 68 with the front ends screwed in the adjusting holes at the corresponding positions are arranged in each adjusting groove 67, the rear side of the cam plate 38 is provided with a seed unloading segment 39, a first seed clamping segment 40, a buffer segment 41 and a second seed clamping segment 42 in sequence along the clockwise direction, the distance between the rear side surface of the first seed clamping segment 40 and the front side surface of the cam plate 38 is the same as the distance between the rear side surface of the second seed clamping segment 42 and the front side surface of the cam plate 38, the distance between the rear side surface of the first seed clamping segment 40 and the front side surface of the cam plate 38 is smaller than the distance between the rear side surface of the seed unloading segment 39 and the front side surface of the cam plate 38, the distance between the rear side surface of the first seed clamping segment 40 and the front side surface of the cam plate 38 is larger than the distance between the rear side surface of the buffer segment 41 and the front side surface of the cam plate 38, the minimum distance between the outer side of each roller 15 and the front side surface of the cam plate 38 is not larger than the distance between the rear side surface of the buffer segment 41 and the front side surface of the cam plate 38, the seed unloading segment 39, the first seed clamping segment 40, the buffer segment 41 and the second seed clamping segment 42 are smoothly connected together, the right side of the seed unloading section 39 is provided with a climbing surface, the rear side of the movable disc 36 corresponding to the position of the cam plate 38 is provided with a through inspection hole, the rear side of the movable disc 36 corresponding to the position of the inspection hole is detachably and fixedly provided with an inspection cover 69, the rear side of the fixed disc 30 corresponding to the right position of the central shaft 66 is fixedly provided with an arc baffle plate 49 with a left opening, 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 66 and the inner side of the fixed ring platform 31, 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 form a seed storing cavity 51, a seed unloading channel 52 is formed between the outer side of the arc baffle plate 49 and the inner side of the fixed ring platform 31, the outer side of the lower part of the fixed ring platform 31 corresponding to the right position of the seed blocking brush 50 is provided with a seed unloading hole 53 communicated with the seed unloading channel 52, a fan-shaped inspection hole communicated with the seed removing channel 52 is arranged at the front side of the right part of the fixed disc 30 corresponding to the position of the seed passing hole 53, an observation cover 54 with a box-shaped structure with an open front end is arranged in the inspection hole, a sealing frame 70 which protrudes outwards and the rear end of which is contacted with the front side of the fixed disc 30 is fixed at the outer side of the front end of the observation cover 54, a left pressing device and a right pressing device 78 which can press the observation cover 54 are arranged at intervals along the circumference at the lower part of the fixed disc 30 corresponding to the position above the observation cover 54, the right pressing device 78 has the same structure as the left pressing device, the left pressing device comprises a handle 71, a pressing bolt 76, a sliding table 73, a limit plate 74, a locking plate 75 and a pressing spring, a rotating screw hole is arranged at the front side of the fixed disc 30 corresponding to the position above the left part of the observation cover 54, a rotating through hole which is communicated with the front and back is arranged at the upper part of the handle 71, the fixed disc 30 and the pressing bolt 76 which is screwed in the rotating screw hole through the rear end, a compression spring is installed between the compression bolt 76 and the handle 71, an arc support table 72 which is coaxially arranged with a rotary screw hole is fixed on the front side of the observation cover 54, a disassembly notch 77 which is communicated with the inside and the outside is arranged on the inner side of the sealing frame 70 corresponding to the position of the support table 72, a sliding table 73 which is abutted against the front side of the support table 72 is fixed on the lower end of the handle 71, a limit plate 74 which is provided with a distance between the rear side and the front side of the fixed disc 30 is fixed on the upper end of the handle 71, locking plates 75 are fixed on the front sides of the fixed disc 30 corresponding to the positions on both sides of the limit plate 74, a front side surface of the left end of the locking plate 75 on the left side is in smooth transition with the front side of the fixed disc 30, a hole which is communicated with the inside and the outside is arranged on the front side of the left part of the fixed disc 30 corresponding to the position on the left lower side of the central shaft 66, and a seed inlet pipe 55 is detachably and fixedly installed on the front side of the fixed disc 30 corresponding to the position of the seed inlet hole.

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 66, 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 66, 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 66, 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 66, the rear end of the, 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 arranged on the outer side of the front part of the central shaft 66, 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 66 are detachably and fixedly arranged together through a screw rod which sequentially penetrates through the straight hole section and the front fixing hole at the corresponding position from back to front, a locking bolt which is in threaded connection with a locking nut is arranged in a screwing mode, the plug board 45 and the clamping block 46 are arranged integrally, the seed guiding box 35 can be arranged in a split mode or be arranged integrally, the adjusting bolt 68 is known technology, such as a hexagon bolt in a cylindrical sleeve, the dismouting groove of adjusting bolt 68 head corresponds with the regulation hole, side apron 32 and driving disk 36 are in the same place through the connecting bolt fixed mounting of a plurality of interval equipartition along the circumference, the front end both sides that waistband 37 was kept away from to every kind of box 35 all are 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, compression spring is current well-known compression spring, every group falls the kind of hole group and all includes the kind of hole 48 that falls between 2 to 20 of quantity.

In the using process, the seed taking device and the seeder can be assembled quickly by the arrangement, the seed taking device can be mounted on a conventional drilling seeder conveniently, the application range is wide, the actual seed clamping condition can be observed conveniently by arranging the observation cover 54 so as to be adjusted conveniently, the finger chuck 10 of the seed taking device can carry out secondary seed filling on seeds, two seeds clamped during the first seed filling or one seed which is not clamped can be adjusted again, so that the finger chuck 10 finally clamps one seed, the seed filling rate is improved, the single seed rate is high, the void ratio is small, the contact position of the cam plate 38 and the roller 15 can be adjusted by adjusting the adjusting bolt 68 after the inspection cover 69 is opened by arranging the adjusting bolt 68 and the inspection cover 69, the opening size of the finger chuck 10 is controlled so as to adapt to seeds of different specifications, and the seed clamping efficiency of the seed taking device is improved at the same time, by arranging the inserting plate 45, the fixture block 46 and the belt 37 with a plurality of seed falling hole groups, the product structure can be simplified, the parts to be replaced when the plant spacing is changed are reduced, the inner side of the seed guiding box 35 is close to the outer side of the fixed ring table 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, the mechanical damage rate of seeds during sowing can be reduced, to graininess seeds such as maize, cotton, beans, peanut of each kind, all have fine adaptability, can reach precision seeding, left closing device and right closing device 78 can reliably fix observation lid 54, prevent to observe that lid 54 is in the course of the work because the vibration takes place to become flexible makes the seed in the lift-off passageway 52 drop through the inspection hole, avoid taking place cavitation.

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

as shown in fig. 7, 8 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 66, 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 66, 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 from front to 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. 7 and 14, a stopper mounting hole 63 is formed in the front right portion of the fixed plate 30 so as to penetrate forward and backward.

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. 7 and 8, the front side of the lower part of the fixed plate 30 corresponding to the left side of the seed blocking brush 50 is provided with a seed cleaning hole which is through from front to back, the front side of the fixed plate 30 corresponding to the seed cleaning hole is rotatably provided with a seed cleaning door 64, two fixed plates 79 are fixed at the left and right of the middle part of the seed cleaning door 64 at intervals, each fixed plate 79 is provided with a jack which is through from left to right, the front part of the fixed plate 30 corresponding to the jack position is provided with a slot with a left opening, the left side of the fixed plate 79 corresponding to the left side is provided with a plug pin 65, the right part of the plug pin 65 corresponding to the position between the two fixed plates 79 is fixedly provided with a plug plate 80, and the outer side of the plug pin 65 corresponding to the position between the left side of the plug plate 80 and the right side of the fixed plate 79 on the left side is provided with a compression spring 81.

According to requirements, a locking block is fixed on the left side of the bolt 65 corresponding to the left position of the left fixing plate 79, and vertical plates for clamping the locking block are fixedly arranged on the fixed disc 30 corresponding to the upper side and the lower side of the locking block at intervals. In the use process, through the arrangement, when the seeds are replaced or the sowing is stopped, the residual seeds in the seed storage cavity 51 can be cleaned conveniently, the sowing cost is reduced, and through the arrangement of the fixing plate 79 and the compression spring 81, the situation that the bolt 65 falls off due to vibration in the operation process and the seeds are leaked due to the fact that the seeds are opened by the seed cleaning door 64 can be avoided, and the reliability of the seed sowing device is improved.

As shown in fig. 7, 8, 9, 10, and 11, four radially penetrating connection holes are circumferentially distributed at intervals on the outer side of the belt 37 corresponding to each seed dropping hole 48, a T-shaped installation groove corresponding to the connection hole is formed in one end of the seed guiding box 35 of each adjustable seed taking device close to the belt 37, and each T-shaped installation groove is communicated with two sides of the seed guiding box 35 corresponding to the position.

According to requirements, the connecting holes corresponding to the T-shaped mounting grooves are four radially-through connecting holes on the outer side of the seed falling hole 48 corresponding to the seed guiding box 35. In the using process, the seed guiding box 35 and the waistband 37 are convenient to assemble and disassemble.

Example three: as shown in fig. 20 and 21, the adjustable dibbler includes an adjustable seed taking device, a fixing bolt and a duckbill dibbler 82, the duckbill dibbler 82 is arranged outside the belt 37 corresponding to each seed guiding box 35, a fixing mounting hole corresponding to the connecting hole is arranged on the bottom plate of each duckbill dibbler 82, and each duckbill dibbler 82 and the belt 37 are installed together by a fixing bolt 83 which is screwed with a fixing nut clamped in the mounting groove and sequentially passes through the fixing mounting hole and the corresponding connecting hole from outside to inside through a screw.

According to the requirement, the seeding channel of each duckbill hole forming device 82 is communicated with the seed guiding channel 43 of the corresponding seed guiding box 35. In the use, through such setting, can increase application scope, require to change duckbilled cavitation ware 82 to the seeding of difference, through setting up "T" shape mounting groove, be convenient for install duckbilled cavitation ware 82 fast when changing the plant spacing, shorten the change time, improve work efficiency, be convenient for promote in the peasant household.

The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.

Claims

1. A finger-clamping 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 arranged together with the upper side of the right part of the finger clamp body is rotatably arranged in the shaft hole, the upper end of the rotating shaft corresponding to the upper side position of the seed taking seat is fixedly provided with the cam follower, the upper side of the rear part of the seed taking seat corresponding to the right position of the rotating shaft is provided with a limiting groove with an upward opening, the lower side of the cam follower is provided with a limiting pin with the right side abutting against the right side wall of the limiting groove, correspond the finger clamp body lower part left side of getting kind of a position and be fixed with finger splint, finger splint left end rear side is fixed with to be equipped with gapped finger chuck between protruding and rear end and the seat front side of getting kind of a back, it is equipped with the swift current kind of groove that the lower extreme extends to the seat downside of getting kind and be big end down to correspond the seat front side of getting kind of a position of finger chuck rear, it is equipped with the left draw-in groove that the left end extends to the seat left of getting kind to correspond the seat upper end front side of getting kind of a position above the finger chuck, it is equipped with the right draw-in groove that the right-hand member extends to the seat right side to correspond the seat upper end front side of getting kind of the right-hand position of pivot.

2. The finger-gripping seed taker according to claim 1, characterized in that the cam follower comprises a crank arm, a pin shaft and a roller, the crank arm is "L" shaped, a gap is provided between the lower side and the upper side of the seed taker seat, the left end of the crank arm is fixedly mounted with the upper end of the rotating shaft, the right end of the crank arm is fixedly mounted with the pin shaft, the central axis of which is arranged along the radial direction of the upper side of the seed taker seat, the roller is rotatably mounted on the outer side of the pin shaft corresponding to the upper position of the crank arm, the outer side of the pin shaft corresponding to the upper position of the roller is provided with a limit ring, and the middle part of the crank arm corresponding to the rear position of the rotating shaft is detachably and fixedly mounted with the upper end of the limit pin; or/and, get the left side of kind of seat and cave in right and form "V" shape overlap joint groove, get the right side of kind of seat and bulge right and form "V" shape overlap joint boss, along circumference equipartition and adjacent position two get kind between the seat, 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.

3. The finger-clamping 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.

4. The finger-clamping seed taker according to claim 3, wherein two counter bores are arranged on the front side of the mounting cover plate at intervals from left to right, mounting screw holes are formed in the inner wall of the rear part of the mounting groove corresponding to each counter bore, and the mounting cover plate and the seed taker seat are detachably and fixedly mounted together through screws which penetrate through the counter bores and are screwed into 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 finger-clip type seed taker according to claim 3, wherein a semicircular rear shoe 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 shoe 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 on the upper side of the right part of the finger clip 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 finger-clip type seed taker according to claim 4, wherein a semicircular rear shoe 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 shoe 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 clip 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. An adjustable seed taking device using the finger-clamping seed taking device as claimed in 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 fixedly installed 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 extending 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 installed 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 device are uniformly distributed with a plurality of seed holes along the circumference, each seed dropping hole group comprises at least two seed dropping holes which are uniformly distributed at intervals along the circumference and are radially communicated, the inner side of the waistband corresponding to the position of each seed dropping hole in one group of seed dropping hole groups is 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 fixed ring table, each seed guiding box is internally provided with a seed guiding channel communicated with the seed dropping hole at the corresponding position, the two sides of the front end of each seed guiding box are respectively provided with a splicing groove with a forward opening, the rear end of the fixed ring table is uniformly provided with seed taking devices which are in one-to-one correspondence with the seed guiding boxes along the circumference, the front side of the 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 each seed taking seat of each seed taking device, which is close to the rear end of the fixed ring table, the seed taking seat of each seed taking device is fixedly arranged together with the side of the seed guiding box, which is far from the waistband, which is corresponding to the belt, and the finger chuck of the lowest seed taking device is positioned above the conducting channel part of the seed guiding box at the corresponding position, the seed extracting device is characterized in that an inserting plate inserted into an inserting groove in a corresponding position is arranged between every two adjacent seed guiding boxes, a clamping block clamped between every two adjacent seed extracting devices is fixed on the inner side of the rear portion of each inserting plate, a gap is formed between the front side of each clamping block and the rear end of a fixed ring platform, a fan-shaped cam plate is arranged on the rear side of the lower portion of a core disc corresponding to the position below a central shaft, a plurality of T-shaped adjusting grooves are uniformly distributed on the inner ring surface of the cam plate at intervals along the circumference, adjusting holes corresponding to the adjusting grooves and communicated with the rear ends of the adjusting grooves are formed in the rear side of the cam plate, adjusting screw holes are formed in the rear side of the core disc corresponding to the positions of the adjusting holes, adjusting bolts with the front ends screwed into the adjusting screw holes in the corresponding positions are arranged in each adjusting groove, a seed extracting 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 of the first seed clamping section and the front side of the cam plate is the distance between the rear side of the second seed clamping section and the front side of the cam plate The distance is the same, 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, the minimum distance between the outer side 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 unloading section, the first seed clamping section, the buffer section and the second seed clamping section are connected in a smooth manner, the right side of the seed unloading section is provided with a climbing surface, the rear side of the movable plate corresponding to the position of the cam plate is provided with a front and rear through inspection hole, the rear side of the movable plate corresponding to the position of the inspection hole is detachably and fixedly provided with an inspection cover, the fixed plate rear side corresponding to the right position of the central shaft is provided with an arc baffle plate with a left opening, and the baffle plate left side corresponding to the lower position of the central shaft is provided with a seed stopping brush with a front end and a fixed plate lower part which is detachably and a fixed plate The fixed disk rear side, the fixed ring platform is inboard, the core disc front side, the outer axle sleeve outside, the baffle is inboard, keep off kind of brush left side, the seed deposit chamber is formed to the planting device front side that corresponds and the fixture block front side that corresponds, form between the cowl outside and the fixed ring platform inboard and unload kind of passageway, the fixed ring platform lower part outside that corresponds the right-hand position of the seed brush is equipped with the hole of crossing with unloading kind passageway intercommunication, the fixed disk right part front side that corresponds the hole position is equipped with and unloads kind of passageway intercommunication and be sectorial inspection hole, be equipped with the observation lid of front end open-ended box structure in the inspection hole, the observation lid front end outside is fixed with the sealing frame that outside arch and rear end and fixed disk front side contacted, the fixed disk lower part that corresponds the observation lid top position is equipped with left closing device and right closing device that can compress tightly the observation lid along the circumference interval, right closing device is the same with left closing device structure, left closing device includes handle, seed brush left side closing device, The front side of the fixed disc corresponding to the upper position of the left part of the observation cover is provided with a rotating screw hole, the upper part of the handle is provided with a rotating through hole which is communicated with the front and the back, the handle and the fixed disc are screwed together by the compressing bolt in the rotating screw hole after penetrating through the rotating through hole by the back end, the compressing spring is arranged between the compressing bolt and the handle, the front side of the observation cover is fixed with an arc supporting table which is coaxially arranged with the rotating screw hole, the inner side of the sealing frame corresponding to the position of the supporting table is provided with a disassembly gap which is communicated with the inside and the outside, the lower end of the handle is fixed with a sliding table of which the back side is abutted against the front side of the supporting table, the upper end of the handle is fixed with a limiting plate of which the back side is provided with a distance with the front side of the fixed disc, the front sides of the fixed discs corresponding to the two sides of the limiting plate are both fixed with locking plates, the front side of the left end of the locking plate positioned at the left side is smoothly transited with the front side of the fixed disc, the left lower position of the central shaft is provided with a hole which is communicated with the inside and the outside, the front side of the fixed plate corresponding to the position of the seed inlet hole is detachably and fixedly provided with a seed inlet pipe.

8. The adjustable 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 limiting block 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 limiting block is provided with a front limiting hole which is communicated with the front and the back, a pawl with the back end positioned in the circular groove and the left end contacted with the right end of the limiting block is arranged in the front limiting 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 limiting 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 with a mounting bolt which is screwed with a mounting nut after passing through the first hinge through hole and the second hinge through hole in sequence by a screw rod, 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 adjustable seed taking device according to claim 7 or 8, wherein a front-rear through limit mounting hole is arranged at the front side of the right part of the fixed plate; or/and the front side of the lower part of the fixed disc corresponding to the left side of the seed blocking brush is provided with a seed cleaning hole which is communicated from front to back, the front side of the fixed disc corresponding to the position of the seed cleaning hole is rotatably provided with a seed cleaning door, the middle part of the seed cleaning door is fixedly provided with two fixed plates at intervals from left to right, each fixed plate is provided with a jack which is communicated from left to right, the front part of the fixed disc corresponding to the position of the jack is provided with a slot with a left opening, the left side of the fixed plate corresponding to the left side is provided with a bolt, the right end of the bolt sequentially penetrates through the jack and then is inserted into the slot, the outer side of the right part of the bolt corresponding to the position between the two fixed plates is fixedly provided with a plug board, and the outer side of the bolt corresponding to the position between the left side of the plug board and the right side of the fixed plate corresponding to the left side is sleeved with a compression spring; or/and four radial through connecting holes are distributed on the outer side of the waistband corresponding to each seed falling hole at intervals along the circumferential direction, a T-shaped mounting groove corresponding to the connecting holes is formed in one end, close to the waistband, of the seed guiding box of each adjustable seed taking device, and each T-shaped mounting groove is communicated with the two sides of the seed guiding box corresponding to the position.

10. An adjustable dibbler using the adjustable seed taking device as claimed in any one of claims 7 to 9, comprising an adjustable seed taking device, a fixing bolt and a duckbilled dibbler, wherein the duckbilled dibbler is arranged outside the belt corresponding to each seed guiding box position, a fixing mounting hole corresponding to the connecting hole is arranged on the bottom plate of each duckbilled dibbler, and each duckbilled dibbler and the belt are sequentially arranged through the fixing mounting hole and the corresponding connecting hole from outside to inside by a screw rod and are screwed with the fixing bolt clamped in the fixing nut in the mounting groove.