CN216960760U - Finger-clamping seed taking device, finger-clamping seed tray and finger-clamping seeding device - Google Patents

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a finger-clamping type seed taking device, a finger-clamping type seeding disc and a finger-clamping type seeding device. The finger-clamping type seed taking device comprises a seed taking seat, a finger clamp body, a tile cover, a rotating shaft, a first torsion spring and a roller. The utility model has reasonable and compact structure, gaps are arranged between the left side of the tile cover and the left side of the seed taking seat and between the right side of the tile cover and the right side of the seed taking seat, so that the installation and sealing of a plurality of seed taking seats are facilitated, the installation of the roller and the finger clamp body is facilitated by arranging the upper rotating groove and the lower rotating groove, the disassembly and the assembly of the rotating shaft through the tile combining connecting structure of the tile cover and the seed taking seat are facilitated, the disassembly and the assembly difficulty of the rotating shaft are reduced, meanwhile, the roller and the finger clamp body can be arranged at the front side and the rear side of the tile cover, the rotation of the roller is convenient to be separated from the seed clamping action of the finger clamp body, the mutual interference of seeds and the roller in the seed taking process is avoided, the seed taking efficiency is improved, the adaptability to the size and the shape of the seeds is better, and the purpose of single seed precision sowing can be realized.

Description

Finger-clamping seed taking device, finger-clamping seed tray and finger-clamping seeding device

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a finger-clamping type seed taking device, a finger-clamping type seeding disc and a finger-clamping type seeding device.

Background

The seed taking device is a core working component of the dibbler for realizing precise sowing, 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 fault 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 disassembly and assembly or adjustment process is complicated when the plant spacing is changed, 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 not convenient to popularize in farmers.

Publication No. CN214852740U, name: seed taking device, seed taking device and dibbler have the following defects: the mounting and dismounting of the mounting cover plate are difficult and the dismounting of the rotating shaft is inconvenient; the seed taking device can not clamp seeds with various specifications and sizes, the replacement operation is frequent, and the labor intensity is high; when the finger chuck clamps seeds, the contact surface with the seeds is small, the seeds are easily broken and blown, and the seeds are easy to slip and generate a cavity phenomenon when the sowing tray vibrates in the clamping and rotating process; when the finger chuck unloads seeds, the seeds can not accurately enter the cavities after colliding with the seed taking seat; when the cam plates which are bilaterally symmetrical are installed with the core disc, the core discs which are bilaterally symmetrical need to be installed with the core disc in a matching way, and the specification and the model of the core discs are various, so that the core discs are inconvenient to distinguish and the seed taking device is inconvenient to disassemble, assemble and maintain; the observation cover is arranged at the lower part, so that the righting and cleaning work of clamping seeds in the finger chuck is inconvenient, the mounting space of the seed cleaning door, the seed inlet pipe and the fixed disc is compact, the dismounting and maintenance difficulty is increased, the opening size of the finger chuck needs to be adjusted when different varieties of seeds are replaced, the position of the cam plate is further adjusted, no basis exists during adjustment, the adjustment is difficult, and the adjustment process is more complicated when the plant spacing is replaced; the seed taking device, the core disc and the waistband are complex to disassemble and assemble, and the waistband, the seed taking device and the duckbill are often difficult to assemble due to the manufacturing error of the waistband, so that the production operation is delayed.

Disclosure of Invention

The utility model provides a finger-clamping seed taking device, a finger-clamping seeding tray and a finger-clamping seeding device, which overcome the defects of the prior art and can effectively solve the problems that the seed taking device of the prior seeding device can not clamp seeds with various specifications and sizes, the replacement operation is frequent, the labor intensity is high, the seeds are easy to be squeezed and broken and to be squeezed and fly when a finger chuck clamps the seeds, the seeds are easy to slip and to generate a cavity phenomenon, the seeds cannot accurately enter cavities after colliding with a seed taking seat when the finger chuck unloads the seeds, the dismounting and mounting among the seed taking device, the core disc and a waistband are complex, and the mounting among the waistband, the seed taking device and a duckbill is more difficult due to the manufacturing errors of the waistband, so that the production operation is delayed.

One of the technical schemes of the utility model is realized by the following measures: a finger-clamping seed taking device comprises a seed taking seat, a finger clamp, a tile cover, a rotating shaft, a first torsion spring and a roller, wherein the upper side and the lower side of the seed taking seat are concentric cambered surfaces, the right side of the upper part of the seed taking seat is provided with an upper rotating groove with an upward opening and a through front and back, the front side of the lower part of the seed taking seat corresponding to the lower part of the upper rotating groove is provided with a lower rotating groove with a forward opening, the front side of the seed taking seat is provided with an arc-shaped rear mounting groove with an upper part communicated with the lower part of the upper rotating groove, the lower part of the rear mounting groove is communicated with the upper part of the lower rotating groove, the front side of the upper part of the seed taking seat corresponding to the left and right positions of the rear mounting groove is respectively provided with a left fixing groove with an upward opening and a right fixing groove with an upward opening, the left side of the tile cover is fixedly arranged in the right fixing groove, intervals are respectively arranged between the left side of the tile cover and the left side of the seed taking seat and between the right side of the tile cover, the middle part of the tile cover and the right side of the seed taking seat, the arc-shaped front mounting groove corresponding to the rear mounting groove, the front mounting groove and the rear mounting groove can form mounting holes with circular sections, a rotating shaft is rotatably mounted in the mounting holes, a first torsion spring is arranged between the rotating shaft and the seed taking seat, an L-shaped crank arm is fixedly mounted at the rear part of the upper end of the rotating shaft, a roller with the central axis radially arranged along the upper side surface of the seed taking seat is rotatably mounted at the upper side of the right end of the crank arm, a finger clamp body with a left part positioned in front of the left part of the seed taking seat is fixedly arranged at the lower end of the rotating shaft corresponding to the lower part of the tile cover, a first seed clamping groove and a second seed clamping groove are sequentially arranged at the rear side of the left end of the finger clamp body from right to left, the first seed clamping groove and the second seed clamping groove are both opened backwards, the distance between the left end of the second seed clamping groove and the front side of the seed taking seat is greater than the distance between the right end of the second seed clamping groove and the front side of the seed taking seat, and the distance between the lower end of the second seed clamping groove and the front side of the seed taking seat is greater than the distance between the upper end of the second seed clamping groove and the front 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 aforesaid corresponds the seat lower part front side of getting of indicating clamp below position and can be equipped with the forward spread groove of opening, wall and lower wall are on the spread groove and get the concentric cambered surface of a seat upside, and the left end and the right-hand member of spread groove extend to respectively get the left side and the right side of planting the seat, correspond the seat downside of getting of indicating clamp left end below position and be equipped with the opening forward and with the first groove of planting of spread groove lower part intercommunication.

The inner wall of the first seed clamping groove is provided with a V-shaped seed selecting groove which is arranged in the left-right direction and has a backward opening.

The front side of the seed taking seat corresponding to the lower position of the finger clamp body can be provided with a second seed discharging groove with a forward opening, and the lower part of the second seed discharging groove is communicated with the upper part of the connecting groove.

The tile cover rear side corresponding to the right position of the front mounting groove can be provided with a closed limiting surface which is abutted against the front side of the right part of the crank arm, the upper side of the tile cover rear part corresponding to the left position of the rotating shaft is provided with an opening limiting surface which is inclined from left to right to front, and the right part of the opening limiting surface is in tangent transition with the inner wall of the front mounting groove.

The rear sides of the tile covers corresponding to the left and right positions of the rotating shaft can be provided with positioning holes, and a positioning column with the rear end fixed together with the seed taking seat in a corresponding position is arranged in each positioning hole.

The second technical scheme of the utility model is realized by the following measures: a finger-clamping seeding tray comprises a central shaft, a fixed tray, a core tray, a movable tray, a cam plate, an insert block and a finger-clamping seed taker, wherein the central shaft is arranged in the front-back direction, the movable tray 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 portion of the central shaft is fixed in the center of the front end of the movable tray, an outer shaft sleeve is rotatably arranged on the outer side of the inner shaft sleeve, the core tray is fixed on the outer side of the front portion of the central shaft corresponding to the front position of the core tray, a front-back fixed ring table is fixed on the rear end face of the fixed tray close to the outer side, a side ring cover fixedly arranged together with the movable tray is sleeved on the outer side of the fixed tray, a front ring groove is arranged at the rear end of the movable tray corresponding to the position of the front ring groove, a belt is arranged in the front ring groove, the rear end of the front ring groove is fixed in the rear ring groove and coaxially sleeved on the outer side of the core tray, a plurality of seed dropping holes which are radially communicated with each other along the circumference, the inner side of the waistband corresponding to each seed dropping position is fixedly provided with a finger-clamping type seed fetching device, the front side of a seed fetching seat of each finger-clamping type seed fetching device, which is close to the rear end of the core disc, the connecting groove is internally provided with seed guiding shells, the left side and the right side of which are provided with intervals, the seed guiding shell corresponding to the front position of the rotating shaft is provided with an outer guide groove with an upward opening, the seed guiding shell corresponding to the rear position of the rotating shaft is provided with an inner guide groove with a downward opening, the inner wall of the outer guide groove positioned in front of the rotating shaft along the anticlockwise direction is provided with a seed guiding channel which is communicated with the inner guide groove and is in the front-back direction, the inner side of the outer guide groove corresponding to the right position of the seed guiding channel is fixedly provided with a seed baffle plate, the outer side of the front part of the seed guiding shell corresponding to the front position of the first seed guiding channel is fixedly provided with a clamping block arranged in front part of the first seed dropping groove, an inserting block is clamped between every two adjacent finger-clamping type seed fetching devices, and the left side and the right side of the upper part of the inserting block is fixedly provided with a lap joint block, each lap joint block is positioned in a gap between the corresponding tile cover and the seed taking seat, the left side and the right side of the lower part of each insert block are in contact with the left side and the right side of the corresponding seed guiding shell, the lower part of each insert block is provided with an extended guide groove corresponding to the outer guide groove, the left side and the right side of the insert block corresponding to the lower part of each lap joint block are attached to the seed taking seat corresponding to the corresponding position, 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, the inner annular surface of the cam plate is uniformly provided with a plurality of T-shaped adjusting grooves at intervals along the circumference, the rear side of the cam plate is provided with adjusting holes corresponding to the adjusting grooves and communicated with the rear ends of the adjusting grooves, the rear side of the cam plate corresponding to the positions of the adjusting holes is provided with an adjusting identification layer, the rear side of the core disc corresponding to the positions of the adjusting holes is provided with adjusting screw holes, each adjusting groove is internally provided with an adjusting bolt with the front end screwed in the adjusting screw hole corresponding position, the rear side of the cam plate is sequentially provided with a seed removing section and a seed taking seat 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 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 plate corresponding to the position of the cam plate is provided with a through inspection hole, and the rear side of the movable plate corresponding to the position of the inspection hole is detachably and fixedly provided with an inspection cover, an arc baffle plate with a leftward opening 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 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 table, a seed storage cavity is formed on the rear side of the fixed disc, the inner side of the fixed ring table, the front side of the core disc, the inner side of the baffle plate, the left side of the seed blocking brush, the corresponding front side of the seed taking seat and the corresponding front side of the insert block, a seed discharging channel is formed between the outer side of the baffle plate and the inner side of the fixed ring table, a seed passing hole communicated with the seed discharging channel is arranged on the outer side of the lower part of the fixed ring table corresponding to the right position of the seed blocking brush, a fan-shaped inspection hole communicated with the front and back is arranged on the front side of the upper part of the fixed disc corresponding to the upper position of the central shaft, an observation cover is arranged on the front side of the fixed disc, and a left compression bolt and a right compression bolt capable of the observation cover are arranged on the left side and the left side of the upper part at intervals, observe lid middle part rear side fixed mounting and have the brush of cleaning kind, the spacing mounting hole that link up around being equipped with corresponding the fixed disk right part front side of the right-hand position of center pin, the fixed disk left part front side that corresponds the center pin left side below position is equipped with the seed inlet hole of inside and outside intercommunication, and the fixed disk front side that corresponds the seed inlet hole position can dismantle fixed mounting and have the seed inlet pipe.

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

above-mentioned core dish rear side can be followed the circumference interval equipartition and be equipped with four regulation screws to, two regulation screws that are located the left side and two regulation screw bilateral symmetry that are located the right side distribute.

The seed cleaning device can be fixedly installed on the rear side of the fixed plate corresponding to the left position of the left compression bolt, the rear portion of the seed cleaning device and the rear portion of the seed cleaning brush are inclined in a front-low and rear-high mode, and the rear end of the seed cleaning device and the rear end of the seed cleaning brush can be close to the rear side of the finger clamp.

The seed cleaning 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 that corresponds seed cleaning hole position is fixed with first connection boss, and first connection boss left part front side is rotated and is installed the door of clearing, is equipped with the bolt between door of clearing and the first connection boss right part, and the fixed disk front side that corresponds the seed inlet position is fixed with the second and connects the boss, and the second is connected the boss and is in the same place with seed inlet pipe fixed mounting.

The front end of the core disc is provided with a ring groove with a forward opening, a limiting block is fixed in the ring groove corresponding to the upper position of 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 that corresponds stopper right side position is equipped with the preceding spacing hole that link up around, install the pawl that the rear end is located the annular and the left end contacts with the stopper right-hand member in the preceding spacing hole, the articulated arm left end fixed mounting between the articulated arm is in the same place after the pawl front end passes preceding spacing hole and locates the articulated arm, the articulated arm right-hand member is equipped with the articulated through-hole of second corresponding with first articulated through-hole, the articulated arm right-hand member passes behind first articulated through-hole and the articulated through-hole of second in proper order the spiro union of spiro union has mounting nut's mounting bolt articulated the connection together, the last cover of mounting bolt is equipped with the second torsional spring that makes pawl rear end and annular rear portion inner wall offset.

The third technical scheme of the utility model is realized by the following measures: the utility model provides a indicate double-layered seeder of formula of pressing from both sides, including indicate double-layered seeding dish and with the duckbilled dibbler that the kind of a hole is corresponding that falls, duckbilled dibbler includes the bottom plate, move the duckbill, decide the duckbill, location platform and reset spring, the equal fixed mounting in the waistband outside that corresponds every kind of a hole position that falls has the bottom plate that width and waistband width are the same, the bottom plate outside is fixed with along the anticlockwise interval and decides the duckbill, hinge plate and location platform, the bottom plate outside that corresponds position between hinge plate and the fixed duckbill is equipped with the seeding hole that communicates with the kind of a hole that falls, hinge plate keeps away from one side articulated the installing of bottom plate and moves the duckbill, it has the flank that forms kind of a chamber with fixed duckbilled and hinge plate to move the duckbill, one side that hinge plate is close to the bottom plate is equipped with the scum groove that kind of a chamber communicates, move and install reset spring between the platform.

The utility model has reasonable and compact structure, gaps are arranged between the left side of the tile cover and the left side of the seed taking seat and between the right side of the tile cover and the right side of the seed taking seat, so that the installation and sealing of a plurality of seed taking seats are facilitated, the installation of the roller and the finger clamp body is facilitated by arranging the upper rotating groove and the lower rotating groove, the disassembly and the assembly of the rotating shaft through the tile combining connecting structure of the tile cover and the seed taking seat are facilitated, the disassembly and the assembly difficulty of the rotating shaft are reduced, meanwhile, the roller and the finger clamp body can be arranged at the front side and the rear side of the tile cover, the rotation of the roller is convenient to be separated from the seed clamping action of the finger clamp body, the mutual interference of seeds and the roller in the seed taking process is avoided, the seed taking efficiency is improved, the adaptability to the size and the shape of the seeds is better, and the purpose of single seed precision sowing can be realized.

Drawings

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

Fig. 2 is a schematic perspective view of the first embodiment.

Fig. 3 is a schematic perspective view of a seed taking seat in the first embodiment.

Fig. 4 is a schematic perspective view of a tile cover according to a first embodiment.

Fig. 5 is a schematic perspective view of a rotating shaft according to a first embodiment.

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 the fixed disk in the second embodiment.

Fig. 9 is a rear view of the structure of fig. 8.

FIG. 10 is a schematic front view of a movable plate according to a second embodiment.

Fig. 11 is a rear view structural diagram of a side ring cover in the second embodiment.

Fig. 12 is a schematic front view of the core disc according to the second embodiment.

Fig. 13 is a left side sectional structural view of fig. 12.

Fig. 14 is a rear view of the structure of fig. 12.

FIG. 15 is a schematic bottom view of the cam plate according to the second embodiment.

FIG. 16 is a rear view schematically illustrating the structure of the cam plate according to the second embodiment.

Fig. 17 is a schematic cross-sectional structure view of a seed guiding shell in the second embodiment.

Fig. 18 is a schematic perspective view of a conductive shell according to the second embodiment.

Fig. 19 is a left side sectional structural view of an insert block in the second embodiment.

Fig. 20 is a schematic perspective view of an insert block according to a second embodiment.

FIG. 21 is a front view of seven finger-clipped seed extractors, seven seed guiding cases and seven insertion blocks.

Fig. 22 is an enlarged view of the pawl of fig. 6 in the direction of a.

Fig. 23 is a schematic front view of the third embodiment.

Figure 24 is a schematic partial cross-sectional front view of a duckbill cavitator in accordance with a third embodiment.

The codes in the figures are respectively: 1 is a seed-taking seat, 2 is a finger holder, 3 is a rotating shaft, 4 is a first torsion spring, 5 is an upper rotating groove, 6 is a lower rotating groove, 7 is a rear mounting groove, 8 is a front mounting groove, 9 is a left fixing groove, 10 is a right fixing groove, 11 is a first seed-clamping groove, 12 is a second seed-clamping groove, 13 is a crank arm, 14 is a shoe cover, 15 is a roller, 16 is a connecting groove, 17 is a first seed-clamping groove, 18 is a second seed-clamping groove, 19 is a closing limiting surface, 20 is an opening limiting surface, 21 is a positioning post, 22 is a positioning hole, 23 is a seed-selecting groove, 24 is a clamping block, 25 is an outer guiding groove, 26 is an inner guiding groove, 27 is a viewing cover, 28 is a seed-guiding passage, 29 is a central shaft, 30 is a fixed disk, 31 is a fixed ring platform, 32 is a side ring cover, 33 is a core disk, 34 is an outer shaft sleeve, 35 is a seed-blocking plate, 36 is a movable disk, 37 is a belt, 38 is a cam plate, 39 is a relief segment, 40 is a first relief segment, and 41 is a buffer segment, 42 is a second clamp seed section, 43 is an extended guide groove, 44 is an insert block, 45 is a lap joint block, 46 is a second connecting boss, 47 is an inner shaft sleeve, 48 is a seed dropping hole, 49 is a baffle plate, 50 is a seed stopping brush, 51 is a seed storage cavity, 52 is a seed discharging channel, 53 is a seed passing hole, 54 is an observation cover, 55 is a seed inlet pipe, 56 is a ring 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 an adjusting hole, 67 is a left pressing bolt, 68 is a right pressing bolt, 69 is an adjusting screw hole, 70 is a seed cleaning device, 71 is a seed cleaning brush, 72 is a seed guiding shell, 73 is an adjusting identification layer, 74 is a front snap ring groove, 75 is a rear snap ring groove, 76 is a bottom plate, 77 is a movable duckbill, 78 is a fixed duckbill, 79 is a side wing, 80 is a deslagging groove, 81 is a positioning platform, 82 is a return spring, 83 is a hinge plate.

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 utility model 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 and 5, the finger-clamping seed taking device comprises a seed taking seat 1, a finger-clamping body 2, a tile cover 14, a rotating shaft 3, a first torsion spring 4 and a roller 15, wherein the upper side and the lower side of the seed taking seat 1 are concentric cambered surfaces, an upper rotating groove 5 with an upward opening and a front-back through opening is arranged on the right side of the upper part of the seed taking seat 1, a lower rotating groove 6 with a forward opening is arranged on the front side of the lower part of the seed taking seat 1 corresponding to the position below the upper rotating groove 5, an arc-shaped rear mounting groove 7 with an upper part communicated with the lower part of the upper rotating groove 5 is arranged on the front side of the lower part of the seed taking seat 1, the lower part of the rear mounting groove 7 is communicated with the upper part of the lower rotating groove 6, a left fixing groove 9 with an upward opening and a right fixing groove 10 with an upward opening are respectively arranged on the front side of the upper part of the seed taking seat 1 corresponding to the left and right position of the rear mounting groove 7, a tile cover 14 fixedly arranged in the right fixing groove 10 is arranged in the left fixing groove 9, a tile cover 14, and a space is respectively arranged between the left side of the left fixing groove 1 and the right side of the right fixing groove 14 and the right side of the seed taking seat 1, the rear side of the middle part of the tile cover 14 is provided with an arc-shaped front mounting groove 8 corresponding to the rear mounting groove 7, the front mounting groove 8 and the rear mounting groove 7 can form a mounting hole with a circular section, a rotating shaft 3 is rotatably mounted in the mounting hole, a first torsion spring 4 is arranged between the rotating shaft 3 and the seed taking seat 1, an L-shaped crank arm 13 is fixedly mounted at the rear part of the upper end of the rotating shaft 3, the upper side of the right end of the crank arm 13 is rotatably mounted with a roller 15 with a central axis arranged along the radial direction of the upper side surface of the seed taking seat 1, a finger clamp body 2 with a left part positioned in front of the left part of the seed taking seat 1 is fixedly mounted at the lower end of the rotating shaft 3 corresponding to the lower part of the tile cover 14, a first seed clamping groove 11 and a second seed clamping groove 12 are sequentially arranged at the rear side of the left end of the finger clamp body 2 from right to left, the first seed clamping groove 11 and the second seed clamping groove 12 are both opened backwards, the distance between the left end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is larger than the distance between the right end of the second seed clamping groove 12 and the front side of the seed taking seat 1, the distance between the lower end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is larger than the distance between the upper end of the second seed clamping groove 12 and the front side of the seed taking seat 1.

According to the requirement, the finger clamp body 2, the rotating shaft 3 and the crank arm 13 can be integrally arranged, the left side and the right side of the seed taking seat 1 are symmetrical, the first seed clamping groove 11 is an arc-shaped groove with a backward opening, and the second seed clamping groove 12 is a semi-conical groove with a backward opening. In the using process, the left side and the right side of the seed taking seat 1 are symmetrical with each other, the distinguishing difficulty between the seed taking seats 1 which are symmetrical with the structure of the seed taking seats 1 can be reduced, the universality is enhanced, the space is respectively arranged between the left side of the tile cover 14 and the left side of the seed taking seat 1 and between the right side of the tile cover 14 and the right side of the seed taking seat 1, the installation and the sealing between a plurality of seed taking seats 1 are convenient, the installation of the roller 15 and the finger clamp body 2 are convenient by arranging the upper rotating groove 5 and the lower rotating groove 6, the rotating shaft 3 is also convenient to be disassembled and assembled through the tile closing connecting structure of the tile cover 14 and the seed taking seats 1, the disassembling difficulty of the rotating shaft 3 is reduced, meanwhile, the roller 15 and the finger clamp body 2 can also be installed at the front side and the rear side of the tile cover 14, the rotation of the roller 15 is convenient to be separated from the seed clamping action of the finger clamp body 2, the seeds and the roller 15 are prevented from interfering with each other in the seed taking process, the seed taking efficiency is improved, when larger seeds are clamped, because the distance between the left end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is larger than the distance between the rear end of the second seed clamping groove 12 and the front side of the seed taking seat 1, the seeds can not enter the first seed clamping groove 11 in a larger size, so that the seeds with the larger size can be clamped by the finger clamp body 2 by the elasticity of the first torsion spring 4 when entering the second seed clamping groove 12, and the clamping of the seeds with the larger size is realized; when clamping smaller seeds, because the distance between the left end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is larger than the distance between the rear end of the second seed clamping groove 12 and the front side of the seed taking seat 1, and the first seed clamping groove 11 and the second seed clamping groove 12 both open backwards, so that the smaller seeds enter the first seed clamping groove 11 and are clamped by the finger clamp body 2 by the elasticity of the first torsion spring 4, the smaller seeds entering the second seed clamping groove 12 cannot be clamped by the finger clamp body 2 into the seed bin during rotation, finally only one seed clamped in the first seed clamping groove 11 is reserved, the finger clamp body 2 can firmly clamp the seeds to avoid generating cavities, and can clamp seeds with different sizes and shapes, such as granular seeds like corn, cotton, beans, peanuts and the like, and has better adaptability to the size and the shape of the seeds, the distance between the lower end of the second seed clamping groove 12 and the front side of the seed taking seat 1 is larger than the distance between the upper end of the second seed clamping groove 12 and the front side of the seed taking seat 1, after the finger clamp body 2 is loosened, the seeds can smoothly fall down, thereby realizing the purpose of single-seed precision sowing of large and small seeds. The utility model has the characteristics of reasonable and compact structure, convenient use, safety, labor saving, simplicity, convenience and high efficiency.

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

as shown in fig. 1, 2 and 3, a connecting groove 16 with a forward opening is arranged on the front side of the lower part of the seed taking seat 1 corresponding to the lower part of the finger clamp body 2, the upper wall surface and the lower wall surface of the connecting groove 16 are arc surfaces concentric with the upper side of the seed taking seat 1, the left end and the right end of the connecting groove 16 respectively extend to the left side and the right side of the seed taking seat 1, and a first seeding groove 17 with a forward opening and communicated with the lower part of the connecting groove 16 is arranged on the lower side of the seed taking seat 1 corresponding to the lower part of the left end of the finger clamp body 2.

In the use, indicate that the seed that presss from both sides body 2 and carry can get into the cave nest through first groove 17 of planting after dropping, the accurate seeding of the seed of being convenient for can also be convenient for install and lead kind of mechanism and duckbilled, with the leading-in duckbilled of seed, accomplishes the seeding operation.

As shown in figure 5, a V-shaped seed selection groove 23 which is left-right and is opened backwards is arranged on the inner wall of the first seed clamping groove 12.

In the use process, the V-shaped seed selecting groove 23 with the left and right directions and the backward opening is formed in the inner wall of the first seed clamping groove 11, so that the contact area between the finger clamp body 2 and seeds can be increased, and the finger clamp body 2 can firmly clamp the seeds.

As shown in fig. 1 and 3, a second seeding groove 18 with a forward opening is arranged on the front side of the seeding seat 1 corresponding to the position below the finger clip body 2, and the lower part of the second seeding groove 18 is communicated with the upper part of the connecting groove 16.

In the use, through setting up second seeding groove 18, indicate that the seed that the clamp 2 was cliied can play the swift current kind of effect after falling, can not get into first seeding groove 17 after getting kind of seat 1 front side collision after preventing that the seed from falling, be convenient for indicate the clamp 2 to open the back seed can get into first seeding groove 17 smoothly, realize the seeding operation then.

As shown in fig. 2 and 4, a closed limiting surface 19 abutting against the front side of the right part of the crank arm 13 is arranged on the rear side of the tile cover 14 corresponding to the right position of the front mounting groove 8, an open limiting surface 20 inclined from left to right to front is arranged on the upper side of the rear part of the tile cover 14 corresponding to the left position of the rotating shaft 3, and the right part of the open limiting surface 20 is in tangential transition with the inner wall of the front mounting groove 8.

In the use, open spacing face 20 through the setting, can avoid the finger clamp 2 to take place the upset after first torsion spring 4 fracture, through setting up closed spacing face 19, can prevent to indicate the clamp 2 and get kind of a seat collision damage when closed.

As shown in fig. 3 and 4, positioning holes 22 are formed in the rear side of the tile cover 14 corresponding to the left and right positions of the rotating shaft 3, and a positioning column 21 with the rear end fixed with the seed taking seat 1 is installed in each positioning hole 22.

In the use, through such setting, can improve the mounting accuracy of tile lid 14 and the seat 1 of getting kind, can also avoid tile lid 14 to take place to shift in 3 course of working of pivot and lead to pivot 3 jamming, improve the reliability of getting kind and seeding operation.

The second embodiment: as shown in fig. 6 to 22, the finger-clamping seeding tray comprises a central shaft 29, a fixed tray 30, a core tray 33, a movable tray 36, a cam plate 38, an insert block 44 and a finger-clamping seed taker, wherein the central shaft 29 is arranged in the front-back direction, the movable tray 36 is hermetically and rotatably mounted on the outer side of the rear end of the central shaft 29, an inner shaft sleeve 47 coaxially sleeved on the outer side of the rear part of the central shaft 29 is fixed at the center of the front end of the movable tray 36, an outer shaft sleeve 34 is rotatably mounted on the outer side of the inner shaft sleeve 47, the core tray 33 is fixed on the outer side of the front part of the outer shaft sleeve 34, the fixed tray 30 is fixedly mounted on the outer side of the front part of the central shaft 29 corresponding to the front part of the core tray 33, a front-back fixed ring platform 31 is fixed on the rear end surface of the fixed tray 30 close to the outer side, a side ring cover 32 fixedly mounted with the movable tray 36 is sleeved on the outer side of the fixed tray 30, a front ring groove 74 is arranged at the rear end of the side ring groove 74, a belt 37 coaxially sleeved in the rear ring groove 75 is arranged in the front ring groove 74, a plurality of seed falling holes 48 which are radially through are evenly distributed on the belt 37 along the circumference, the inner side of the belt 37 corresponding to the position of each seed falling hole 48 is fixedly provided with a finger-clip type seed taker, the front side of a seed taking seat 1 of each finger-clip type seed taker, which is close to a roller 15, is close to the rear end of a core disc 33, the connecting groove 16 is internally provided with seed guiding shells 72, the left side and the right side of which are respectively provided with intervals with the left side and the right side of the seed taking seat 1, the seed guiding shell 72 corresponding to the front position of a rotating shaft 3 is provided with an outer guide groove 25 with an upward opening, the seed guiding shell 72 corresponding to the rear position of the rotating shaft 3 is provided with an inner guide groove 26 with a downward opening, the inner wall of the outer guide groove 25, which is positioned in front of the rotating shaft 3 along the anticlockwise direction is provided with a seed guiding channel 28 which is communicated with the inner guide groove 26 and is in the front-back direction, the inner side of the outer guide groove 25 corresponding to the right position of the seed guiding channel 28 is fixedly provided with a seed baffle plate 35, the outer side of the front part of the seed guiding shell 72 is fixedly provided with a clamping block 24 which is clamped in the first seed falling groove 17, an inserting block 44 is clamped between every two adjacent finger-clamped seed taking devices, the left side and the right side of the upper part of the inserting block 44 are respectively fixed with a lapping block 45, each lapping block 45 is positioned in a gap between the corresponding tile cover 14 and the seed taking seat 1, the left side and the right side of the lower part of the inserting block 44 are respectively contacted with the left side and the right side of the corresponding seed guiding shell 72, the lower part of the inserting block 44 is provided with an extension guide groove 43 corresponding to the outer guide groove 25, the left side and the right side of the inserting block 44 corresponding to the lower part of the lapping block 45 are respectively jointed with the seed taking seat 1 corresponding to the corresponding position, the rear side of the lower part of the core disc 33 corresponding to the lower part of the central shaft 29 is provided with a fan-shaped cam plate 38, the inner ring surface of the cam plate 38 is uniformly distributed with a plurality of T-shaped adjusting grooves at intervals along the circumference, the rear side of the cam plate 38 is provided with an adjusting hole 66 corresponding to the adjusting groove and communicated with the rear end of the adjusting groove, the rear side of the cam plate 38 corresponding to the position of each adjusting hole 66 is provided with an adjusting mark layer 73, an adjustment screw hole 69 is provided on the rear side of the core plate 33 corresponding to the position of each adjustment hole 66, an adjustment bolt having a front end screwed into the adjustment screw hole 69 corresponding to the position is provided in each adjustment groove, a seed removing segment 39, a first seed removing segment 40, a buffer segment 41 and a second seed removing segment 42 are provided in the rear side of the cam plate 38 in the clockwise direction, the distance between the rear side of the first seed removing segment 40 and the front side of the cam plate 38 is the same as the distance between the rear side of the second seed removing segment 42 and the front side of the cam plate 38, the distance between the rear side of the first seed removing segment 40 and the front side of the cam plate 38 is smaller than the distance between the rear side of the seed removing segment 39 and the front side of the cam plate 38, the distance between the rear side of the first seed removing segment 40 and the front side of the cam plate 38 is larger than the distance between the rear side of the buffer segment 41 and the front side of the cam plate 38, the minimum distance between the outer side of each roller 15 and the front side of the cam plate 38 is not larger than the distance between the rear side of the buffer segment 41 and the front side of the cam plate 38, the seed removing 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 removing segment 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 inspection hole is detachably and fixedly provided with an inspection cover 27, the rear side of the fixed disc 30 corresponding to the right position of the central shaft 29 is fixedly provided with an arc baffle plate 49 with a leftward opening, a seed blocking brush 50 with a front end detachably and fixedly mounted with the lower part of the fixed disc 30 is arranged between the left end of the baffle plate 49 corresponding to the position below the central shaft 29 and the inner side of the fixed ring platform 31, a seed storing cavity 51 is formed between 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 inner side of the baffle plate 49, the left side of the seed blocking brush 50, the corresponding front side of the seed taking seat 1 and the corresponding front side of the insert 44, a seed removing channel 52 is formed between the outer side of the baffle plate 49 and the inner side of the fixed ring platform 31, the outer side of the lower portion of the fixed ring platform 31 corresponding to the right position of the seed blocking brush 50 is provided with a seed passing hole 53 communicated with the seed removing channel 52, the front side of the upper portion of the fixed disc 30 corresponding to the position above the center shaft 29 is provided with a fan-shaped check hole which is communicated with the front and the back, the front side of the fixed disc 30 corresponding to the position of the check hole is provided with an observation cover 54, the left pressing bolt 67 and the right pressing bolt 68 which can press the observation cover 54 are arranged on the upper portion of the fixed disc 30 at left and right intervals, the rear side of the middle portion of the observation cover 54 is fixedly provided with a seed removing brush 71, the front side of the right portion of the fixed disc 30 corresponding to the position of the center shaft 29 is provided with a limiting installation hole 63 which is communicated with the front and the back, the front side of the left portion of the fixed disc 30 corresponding to the position below the left of the center shaft 29 is provided with a seed inlet hole which is detachably and fixedly provided with a 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 front 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 a ring fixed at the rear end of the fixed disk 30, the first bearing, the second bearing, the third bearing and the fourth bearing can be all known bearings, such as 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 cross section and a prism section with a regular hexagon cross 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 screw rod, a locking bolt which is screwed with a locking nut sequentially penetrates through the straight hole section and the front fixing holes corresponding to the positions from back to front, the seed guide shell 72 is integrally arranged with the clamping block 24, the inserting block 44 is integrally arranged with the lapping block 45, the left side and the right side of the inserting block 44 are symmetrical, so that the installation and the production are more convenient, the left and the right do not need to be distinguished, the delivery error is reduced, a gap is left between the rear end of the insert block 44 and the front end of the movable disc 36 so as to discharge sundries, a waistband 37 is arranged in the front clamping ring groove 74, the rear end of the waistband is fixed in the rear clamping ring groove 75 and is coaxially sleeved outside the core disc 33, the waistband 37, the side ring cover 32 and the movable disc 36 are fixed into a whole through a plurality of connecting bolts distributed at intervals along the circumference, or the front side and the rear side of the seed taking seat 1 are outwards protruded and then are respectively clamped in the front clamping ring groove 74 and the rear clamping ring groove 75, then the finger-clamping type seed taking device, the side ring cover 32 and the movable disc 36 are fixed into a whole through a plurality of connecting bolts distributed at intervals along the circumference, the side ring cover 32 and the movable disc 36 roll on the ground to realize seeding, the front sides of the seed taking seat 1 and the insert block 44 far away from the finger clamp body 2 are close to the rear side of the core disc 33, the front sides of the seed taking seat 1 and the insert block 44 close to the finger clamp body 2 are close to the rear end of the fixed ring 31, the inner side of the front part of the guide shell 72 and the inner side of the front part of the insert block 44 are close to the outer side of the fixed ring table 31, the limiting mounting hole 63 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 rear side of the cam plate 38 corresponding to each adjusting hole 66 is provided with an adjusting identification layer 73, the identification layer can be printed or made into a bulge by the existing known laser engraving technology, a circle of adjusting value which is reduced in the clockwise direction can be printed on the rear side of the cam plate 38 at each adjusting hole 66, and the adjusting direction is printed below the adjusting hole 66.

In the using process, the seed taking device and the seeder can be conveniently and quickly 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 and adjusted by arranging the observation cover 54, the cam plate 38 can ensure that the finger clamp body 2 of the finger clamp type seed taking device carries out secondary seed filling on seeds, two seeds which are not clamped or clamped during the first seed filling or one seed which is not clamped can be filled and adjusted again, so that the finger clamp body 2 finally only clamps 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 blocks 44 and the overlapping blocks 45, the parts which are replaced when the plant spacing is changed can be reduced, the limiting installation holes 63 are arranged, the seed taking device and the frame can be limited or fixed by the bolts which are arranged in the limiting installation holes 63 when being installed, the seed dropping position is prevented from being influenced after the fixed disc 30 rotates, the assembly and the disassembly are convenient, the left side and the right side of the lower part of the insert block 44 are contacted with the left side and the right side of the corresponding seed guiding shell 72, the connection between the insert block 44 and the seed taking seat 1 can be firmer, the seed guiding shell 72 can guide seeds into the inner groove in the continuous rotating process after the seeds fall into the outer guide groove 25, the seeds can enter the first seed dropping groove 17 and the seed dropping hole 48 in advance when rotating to the front lower part again, so that the seeds can enter the hole in time, the seeds can be sowed normally at a higher sowing speed, the seed taking device can not shatter the seeds under the condition of not adding any lubricant, the mechanical damage rate of the seeds is small during sowing, the adjusting identification layer 73 is arranged at the rear side of the cam plate 38 corresponding to each adjusting hole 66, when the seeds of different varieties, such as corns, cottons, beans, peanuts and the like, the positions of the cam plate 38 can be quickly adjusted according to the adjusting identification layer 73, and then the opening size of the finger clamp body 2 is adjusted to adapt to the variety of the seeds, the adjustment is simple, the adaptability is better, and the precision seeding can be achieved.

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

as shown in fig. 13 and 14, four adjusting screw holes 69 are uniformly distributed on the rear side of the core disc 33 along the circumference at intervals, and two adjusting screw holes 69 on the left side and two adjusting screw holes 69 on the right side are distributed in bilateral symmetry.

According to the requirement, the included angle between the central axes of every two adjacent adjusting screw holes 69 can be between 20 degrees and 60 degrees, specifically can be set to 43 degrees, and the included angle between the central axes of the two adjusting screw holes 69 positioned at the inner side and the plumb line can be between 10 degrees and 30 degrees, specifically can be 21.5 degrees. In the using process, through the arrangement, the two cam plates 38 which are symmetrical left and right can be quickly matched with the core disc 33, the specification and the model of the core disc 33 are reduced, and the distinguishing difficulty of the core disc 33 and the installation difficulty of the core disc 33 and the two cam plates 38 which are symmetrical left and right are reduced.

As shown in fig. 6 and 7, a seed cleaner 70 is fixedly arranged on the rear side of the fixed plate 30 corresponding to the left position of the left hold-down bolt 67, the rear portion of the seed cleaner 70 and the rear portion of the seed cleaning brush 71 are inclined in a front-low and rear-high manner, and the rear ends of the seed cleaner 70 and the seed cleaning brush 71 can be close to the rear side of the finger grip 2.

According to requirements, the seed cleaner 70 is in the prior art, such as a conical helical compression spring with a large left end and a small right end, a toothed plate or a cleaning brush, and the front end of the seed cleaner 70 is fixedly arranged on the fixed disc 30 through bolts. In the use, through such setting, the seed cleaning brush 71 can clear up unnecessary small-size seed in the first recess, and seed cleaning device 70 can clear up unnecessary large-size seed in the second recess, simultaneously when indicating that the clamp 2 takes up many seeds or there is the seed to pile the centre gripping, can further clear up and detach two more than seeds, revises the firm seed of centre gripping not, and single seed rate is high for the seeding reaches the smart volume requirement.

As shown in fig. 6, 7, 8 and 9, a seed cleaning hole running through from front to back is arranged on the front side of the lower part of the fixed disc 30 corresponding to the left side of the seed blocking brush 50, a first connecting boss is fixed on the front side of the fixed disc 30 corresponding to the position of the seed cleaning hole, a seed cleaning door 64 is rotatably arranged on the front side of the left part of the first connecting boss, a bolt 65 is arranged between the seed cleaning door 64 and the right part of the first connecting boss, a second connecting boss 46 is fixed on the front side of the fixed disc 30 corresponding to the position of the seed inlet, and the second connecting boss 46 is fixedly arranged with the seed inlet pipe 55.

The first and second connection bosses 46 are integrally provided with the fixed plate 30 as required. In the use, through setting up first connection boss and second connection boss 46, can increase the used connecting bolt's of seed inlet pipe 55 and price fixing 30 fixed mounting connection length for price fixing 30 terminal surface in the fixed ring platform 31 is the plane, avoids connecting bolt pole portion to pass the price fixing 30 rear end face and makes the damaged phenomenon of seed and bolt pole portion collision when sowing, can also strengthen the joint strength between seed inlet pipe 55 and the price fixing 30 simultaneously, reduces the fault rate of getting kind of a device.

As shown in fig. 6 to 14, the front end of the core disc 33 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 in the front side of the fixed disc 30 corresponding to the position right of the central shaft 29, each hinge plate 58 is provided with a first hinge through hole, a front limit hole which is through from front to back is arranged in the front side of the fixed disc 30 corresponding to the position right of the limit block 57, a pawl 59 is installed in the front limit hole, the rear end of the pawl 59 is located 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 grip body 2 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 of reversing the movable disc 36 and not clamping seeds.

Example three: as shown in fig. 23 and 24, the finger-gripping seeding device comprises a finger-gripping seeding tray and a duckbill hole former corresponding to the seed falling hole 48, wherein the duckbill hole former comprises a bottom plate 76, a movable duckbill 77, a fixed duckbill 78, a positioning table 81 and a return spring 82, a bottom plate 76 with the same width as the waistband is fixedly arranged at the outer side of the waistband corresponding to each seed dropping hole, fixed duckbill heads 78, hinge plates 83 and positioning tables 81 are fixed at intervals along the anticlockwise direction at the outer side of the bottom plate 76, the outer side of the bottom plate 76 corresponding to the position between the hinge plate 83 and the fixed duckbill 78 is provided with a seeding hole communicated with the seeding hole, one side of the hinge plate 83 far away from the bottom plate 76 is hinged with a movable duckbill 77, the movable duckbill 77 is provided with a side wing 79 forming a seed storage cavity with the fixed duckbill 78 and the hinge plate 83, one side of the hinge plate 83 close to the bottom plate 76 is provided with a slag discharge groove 80 communicated with the seed storage cavity, and a reset spring 82 is arranged between the movable duckbill 77 and the positioning table 81.

According to the requirement, the duckbill acupuncture device is a known technology, two connecting through holes are arranged at intervals on the outer side of the waistband 37 corresponding to the two sides of each seed dropping hole 48, fastening screws in the two connecting through holes on the front side sequentially fix the front part of the seed guiding shell 72, the front part of the seed taking seat 1, the front part of the waistband 37 and the front part of the bottom plate 76 together from inside to outside, and fastening screws in the two connecting through holes on the rear side sequentially fix the rear part of the seed taking seat 1, the rear part of the waistband 37 and the rear part of the bottom plate 76 together from inside to outside, so that the waistband 37 can be omitted, and the bottom plate 76 is directly fixed on the seed taking seat 1. In the use, through such setting, can increase the application scope of seeding object, require to change duckbilled cavitation ware to the seeding of difference, can also be according to the plant spacing demand of difference, will indicate the double-layered formula to get kind of a ware fast, the inserted block 44, lead seed shell 72, waistband 37 and duckbilled cavitation ware are assembled, reduce dismouting work load and the dismouting degree of difficulty, be convenient for promote in the peasant household, through setting up scum groove 80, can avoid storing up kind intracavity seed can not in time discharge and pile up extrusion when more and get kind of a seat 1, the fault rate is reduced, avoid delaying production.

The technical characteristics form an embodiment of the utility model, 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 (10)

1. A finger-clamping seed taking device is characterized by comprising a seed taking seat, a finger clamp, a tile cover, a rotating shaft, a first torsion spring and a roller, wherein the upper side and the lower side of the seed taking seat are concentric cambered surfaces, the right side of the upper part of the seed taking seat is provided with an upper rotating groove with an upward opening and a through front and back, the front side of the lower part of the seed taking seat corresponding to the lower part of the upper rotating groove is provided with a lower rotating groove with a forward opening, the front side of the seed taking seat is provided with an arc-shaped rear mounting groove with an upper part communicated with the lower part of the upper rotating groove, the lower part of the rear mounting groove is communicated with the upper part of the lower rotating groove, the front side of the upper part of the seed taking seat corresponding to the left and right positions of the rear mounting groove is respectively provided with a left fixing groove with an upward opening and a right fixing groove with an upward opening, the left side of the tile cover is fixedly arranged in the right fixing groove, gaps are respectively arranged between the left side of the tile cover and the left side of the seed taking seat and between the right side of the tile cover, the middle part of the tile cover and the right side of the seed taking seat, the tile cover are respectively provided with arc-shaped front mounting grooves corresponding to the rear mounting groove, the front mounting groove and the rear mounting groove can form mounting holes with circular sections, a rotating shaft is rotatably mounted in the mounting holes, a first torsion spring is arranged between the rotating shaft and the seed taking seat, an L-shaped crank arm is fixedly mounted at the rear part of the upper end of the rotating shaft, a roller with the central axis radially arranged along the upper side surface of the seed taking seat is rotatably mounted at the upper side of the right end of the crank arm, a finger clamp body with a left part positioned in front of the left part of the seed taking seat is fixedly arranged at the lower end of the rotating shaft corresponding to the lower part of the tile cover, a first seed clamping groove and a second seed clamping groove are sequentially arranged at the rear side of the left end of the finger clamp body from right to left, the first seed clamping groove and the second seed clamping groove are both opened backwards, the distance between the left end of the second seed clamping groove and the front side of the seed taking seat is greater than the distance between the right end of the second seed clamping groove and the front side of the seed taking seat, and the distance between the lower end of the second seed clamping groove and the front side of the seed taking seat is greater than the distance between the upper end of the second seed clamping groove and the front side of the seed taking seat.

2. The finger-grip seed taker according to claim 1 wherein the front side of the lower part of the seed taker seat corresponding to the lower position of the finger grip body is provided with a connecting slot with a forward opening, the upper wall surface and the lower wall surface of the connecting slot are both arc surfaces concentric with the upper side of the seed taker seat, the left end and the right end of the connecting slot extend to the left side and the right side of the seed taker seat respectively, and the lower side of the seed taker seat corresponding to the lower position of the left end of the finger grip body is provided with a first seed taker slot with a forward opening and communicated with the lower part of the connecting slot; or/and the inner wall of the first seed clamping groove is provided with a V-shaped seed selecting groove with a left-right direction and a backward opening.

3. The finger-clip type seed taker according to claim 2 characterised in that a second seed discharge slot opening forwardly is provided in the front side of the seed taker seat corresponding to a position below the finger clip body, the lower portion of the second seed discharge slot communicating with the upper portion of the connecting slot.

4. The finger-clip type seed metering device according to claim 1, 2 or 3, characterized in that a closing limiting surface which is abutted against the front side of the right part of the crank arm is arranged at the rear side of the tile cover corresponding to the right position of the front mounting groove, an opening limiting surface which is inclined from left to right to front is arranged at the upper side of the rear part of the tile cover corresponding to the left position of the rotating shaft, and the right part of the opening limiting surface is in tangential transition with the inner wall of the front mounting groove.

5. The finger-clamp type seed taking device according to claim 1, 2 or 3, wherein the rear sides of the tile covers corresponding to the left and right positions of the rotating shaft are provided with positioning holes, and each positioning hole is internally provided with a positioning column, the rear end of which is fixed with the seed taking seat corresponding to the position.

6. The finger-clip type seed taking device according to claim 4 or claim, wherein the rear side of the tile cover corresponding to the left and right positions of the rotating shaft is provided with a positioning hole, and each positioning hole is internally provided with a positioning column, the rear end of which is fixed with the corresponding position of the seed taking seat.

7. A finger-clamping seeding tray using the finger-clamping seed taker according to any one of claims 1 to 6, comprising a central shaft, a fixed tray, a core tray, a movable tray, a cam plate, an insert block and a finger-clamping seed taker, wherein the central shaft is arranged in a front-back direction, the movable tray is hermetically and rotatably mounted 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 portion of the central shaft is fixed in the center of the front end of the movable tray, an outer shaft sleeve is rotatably mounted on the outer side of the inner shaft sleeve, the core tray is fixed on the outer side of the front portion of the outer shaft sleeve, the fixed tray is fixedly mounted on the outer side of the front portion of the central shaft corresponding to the front position of the core tray, a front-back fixed ring table is fixed on the rear end surface of the fixed tray close to the outer side, a side ring cover fixedly mounted with the movable tray is sleeved on the outer side of the fixed tray, a front ring groove is arranged at the rear end of the side ring groove, a belt coaxially sleeved in the rear ring groove is arranged in the front ring groove, a plurality of seed falling holes which are radially communicated are uniformly distributed on the waistband along the circumference, the inner side of the waistband corresponding to each seed falling hole is fixedly provided with a finger-clip type seed taking device, the front side of a seed taking seat of each finger-clip type seed taking device, which is close to a roller wheel, is close to the rear end of a core disc, a seed guiding shell is arranged in a connecting groove, the left side and the right side of the seed taking seat are respectively provided with a distance, the seed guiding shell corresponding to the front position of a rotating shaft is provided with an outer guide groove with an upward opening, the seed guiding shell corresponding to the rear position of the rotating shaft is provided with an inner guide groove with a downward opening, the inner wall of the outer guide groove positioned in front of the rotating shaft along the anticlockwise direction is provided with a seed guiding channel which is communicated with the inner guide groove and is in the front-back direction, the inner side of the outer guide groove corresponding to the right position of the seed guiding channel is fixedly provided with a seed baffle plate, the outer side of the front part of the seed guiding shell corresponding to the first seed guiding channel is fixedly provided with a clamping block clamped in front part of the first seed guiding channel, an inserting block is clamped between every two adjacent finger-clip type seed taking devices, the left side and the right side of the upper part of the insert block are both fixed with overlapping blocks, each overlapping block is positioned in a gap between the corresponding tile cover and the seed taking seat, the left side and the right side of the lower part of the insert block are both contacted with the left side and the right side of the corresponding seed guiding shell, the lower part of the insert block is provided with an extended guide groove corresponding to the outer guide groove, the left side and the right side of the insert block corresponding to the lower part of the overlapping block are both attached to the seed taking seat corresponding to the corresponding position, 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, the inner ring surface of the cam plate is uniformly provided with a plurality of T-shaped adjusting grooves at intervals along the circumference, the rear side of the cam plate is provided with adjusting holes corresponding to the adjusting grooves and communicated with the rear ends of the adjusting grooves, the rear side of the cam plate corresponding to the positions of each adjusting hole is provided with an adjusting mark layer, the rear side of the core disc corresponding to the positions of each adjusting hole is provided with an adjusting screw hole, each adjusting groove is provided with an adjusting bolt with a front end screwed in the adjusting hole corresponding position, 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 that 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 that between the rear side surface of the 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 that 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 that between the rear side surface of the buffer section and the front side surface of the cam plate, the seed clamping section, the first seed clamping section, the buffer section and the second seed clamping section are connected together in a smooth way, the right side of the seed clamping section is provided with a climbing surface, the back through inspection holes are arranged on the rear side of a movable plate corresponding to the position of the cam plate, a check cover is detachably and fixedly arranged on the rear side of the movable disc corresponding to the position of the check hole, an arc baffle plate with a left opening 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 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 position below the central shaft and the inner side of the fixed ring platform, a seed storage 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 inner side of the baffle plate, the left side of the seed blocking brush, the corresponding front side of the seed taking seat and the corresponding front side of the insert block, a seed discharging channel is formed between the outer side of the baffle plate and the inner side of the fixed ring platform, a seed passing hole communicated with the seed discharging channel is arranged on the outer side of the lower part of the fixed ring platform corresponding to the right position of the seed blocking brush, a fan-shaped check hole communicated with the front and back is arranged on the front side of the upper part of the fixed disc corresponding to the central shaft, an observation cover is arranged on the front side of the fixed disc, a left compression bolt and a right compression bolt capable of compressing the observation cover are arranged at intervals on the upper part of the fixed disc, observe lid middle part rear side fixed mounting and have the brush of cleaning kind, the spacing mounting hole that link up around being equipped with corresponding the fixed disk right part front side of the right-hand position of center pin, the fixed disk left part front side that corresponds the center pin left side below position is equipped with the seed inlet hole of inside and outside intercommunication, and the fixed disk front side that corresponds the seed inlet hole position can dismantle fixed mounting and have the seed inlet pipe.

8. The finger-grip seeding disc according to claim 7, wherein four adjusting screw holes are evenly distributed on the rear side of the core disc along the circumference at intervals, and two adjusting screw holes on the left and two adjusting screw holes on the right are distributed in bilateral symmetry; or/and the rear side of the fixed disc corresponding to the left position of the left compression bolt is fixedly provided with the seed cleaning device, the rear part of the seed cleaning device and the rear part of the seed cleaning hairbrush are inclined in a shape that the front part is low and the rear part is high, and the rear end of the seed cleaning device and the rear end of the seed cleaning hairbrush can be close to the rear side of the finger clamp body.

9. The finger-gripping seeding tray according to claim 7 or 8, characterized in that the front side of the lower part of the fixed tray corresponding to the left side of the seed blocking brush is provided with a seed cleaning hole which is through from front to back, the front side of the fixed tray corresponding to the position of the seed cleaning hole is fixed with a first connecting boss, the front side of the left part of the first connecting boss is rotatably provided with a seed cleaning door, a bolt is arranged between the seed cleaning door and the right part of the first connecting boss, the front side of the fixed tray corresponding to the position of the seed inlet is fixed with a second connecting boss, and the second connecting boss is fixedly arranged with the seed inlet pipe; or/and the front end of the core disc is 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.

10. A finger-grip seeding apparatus using the finger-grip seeding disc according to any one of claims 7 to 9, it is characterized by comprising a finger-clamping type seeding disc and a duckbilled hole forming device corresponding to a seed dropping hole, wherein the duckbilled hole forming device comprises a bottom plate, a movable duckbill, a fixed duckbill, a positioning platform and a return spring, a bottom plate with the same width as the waistband is fixedly arranged on the outer side of the waistband corresponding to each seed dropping hole, fixed duckbills, hinge plates and a positioning table are fixed on the outer side of the bottom plate at intervals along the anticlockwise direction, the bottom plate outside that corresponds position between hinge plate and the fixed duckbilled is equipped with the seeding hole that communicates with the kind of a hole that falls, and one side articulated the installing of bottom plate is kept away from to the hinge plate moves the duckbilled, moves the duckbilled have with fixed duckbilled and hinge plate form the flank in kind of storage chamber, and one side that the hinge plate is close to the bottom plate is equipped with the scum groove with kind of storage chamber intercommunication, moves and installs reset spring between duckbilled and the location platform.

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