CN210381855U - Precision dibbling and seeding device for rice - Google Patents

Abstract

The utility model discloses a smart volume dibble seeding device of rice, including the support, install on the support and be used for storing the seed storage fill of seed rice and be used for making the seed rice with batch mode exhaust seed metering ware with storing the seed bucket and linking to each other, the seed metering export below of seed metering ware is equipped with the seed metering control subassembly of seed metering ware exhaust seed rice batch discharge that can deposit seed metering ware exhaust two more than batches and independent control deposit. The utility model has the advantages of low miss-seeding rate, easy implementation and manufacture, low cost and the like.

Description

Precision dibbling and seeding device for rice

Technical Field

The utility model relates to the technical field of agricultural machinery, concretely relates to smart volume dibble seeding device of rice.

Background

The rice machine is planted including two links of sprout cultivation and transplanting, along with rural labour constantly shifts to the city in recent years, the rice transplanting operation cost time, the shortcoming of hard is more practical novel showing. As a new rice planting mode, the direct seeding of the rice machine has the characteristics of labor saving, cost saving, energy saving and water saving, and has been developed and advanced greatly in recent years.

In the operation process of the traditional rice direct seeding seeder, the rice seed mobility is poor due to the fact that the surface roughness of rice seeds is high, stacking and blocking are prone to occurring, and the problems of seeding missing, high cavity rate and the like are caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art existence, provide a smart volume of rice dibble seeding seeder that the rate of leaking is low, easily implement the preparation, with low costs.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the rice precision dibbling and seeding device comprises a support, wherein a seed storage hopper for storing rice seeds and a seed sowing device connected with the seed storage hopper and used for discharging the rice seeds in a batch mode are mounted on the support, and a seed sowing control assembly capable of storing more than two batches of rice seeds discharged by the seed sowing device and independently controlling the stored rice seeds to be discharged in batches is arranged below a seed sowing outlet of the seed sowing device.

As a further improvement of the above technical solution:

seed metering control assembly is including installing the seed storage board on the support, the seed storage board is equipped with a plurality of vertical appearance kind through-holes that can hold more than two rice seeds and make more than two rice seeds stack gradually by supreme down and arrange, seed metering control assembly is still including the synchronous intermittent type seed metering switch that is used for controlling the synchronous intermittent type seed metering of all vertical appearance kind through-holes and every vertical appearance kind through-hole only discharges a rice seed at every turn.

The synchronous intermittent seed metering switch comprises a seed falling plate and a seed moving plate, the seed moving plate is provided with a vertical seed moving through hole which can only contain one seed corresponding to each vertical seed containing through hole, the seed dropping plate is provided with vertical seed dropping through holes for the falling of rice seeds corresponding to each vertical seed transferring through hole, the seed falling plate is fixedly arranged on the bracket, the seed moving plate is connected with a sliding driving mechanism and driven by the sliding driving mechanism to reciprocate between a first position and a second position, when the seed transferring plate is at the first position, each vertical seed accommodating through hole is communicated with the corresponding vertical seed transferring through hole, and the seed falling plate seals the bottom of the vertical seed transferring through hole, when the seed transferring plate is at the second position, each vertical seed falling through hole is communicated with the corresponding vertical seed transferring through hole, when the seed transferring plate is positioned between the first position and the second position, the seed transferring plate seals the bottoms of the vertical seed containing through holes, and the seed dropping plate seals the bottoms of the vertical seed transferring through holes.

The sliding driving mechanism comprises a rotary table and a groove plate, the rotary table is rotatably mounted on the support, the groove plate is fixedly connected to the seed moving plate, a strip driving groove is formed in the groove plate, a shifting rod deviating from the rotary axis of the rotary table is arranged on the rotary table, the shifting rod is inserted into the strip driving groove and is matched with the strip driving groove along with the rotation of the rotary table to force the seed moving plate to move in a reciprocating mode, and the sliding driving mechanism further comprises a rotary driving piece used for driving the rotary table to rotate.

The seed metering ware rotates the seed metering wheel of installing on the support and is used for driving seed metering wheel pivoted rotary driving mechanism including protecting the seed board, around horizontal axis, be equipped with a plurality of seed holding shrinkage pools that are used for holding single rice seed on the lateral wall all around of seed metering wheel, the upper portion of seed metering wheel stretches into the export that the shutoff stored up the seed fill in the export of storing up the seed fill, the below of seed metering wheel is equipped with the seed metering export, protect seed board fixed mounting and the cladding on the support in the outside of seed metering wheel, and protect the seed board from the export of storing up the seed fill along seed metering wheel rotation direction extend to the seed metering export.

A plurality of kinds of shrinkage pools that hold divide into a plurality of punch combination, and a plurality of punch combination are around arranging kind of wheel interval arrangement, and each punch combination includes that more than two hold kind of shrinkage pools along arranging kind of wheel axial interval arrangement in proper order, store up kind of board and be located the below of arranging kind of export, and hold kind of shrinkage pools and the vertical quantity unanimous and the position one-to-one who holds kind of through-hole on every group punch combination with storing up kind of board.

The seed metering device also comprises a containment plate, wherein the containment plate is fixedly arranged on the support, and the containment plate extends from the seed outlet to the outlet of the seed storage hopper along the rotation direction of the seed metering wheel.

A hairbrush is arranged at a gap between the seed storage hopper and the seed sowing wheel and close to one side of the seed protection plate.

Be equipped with in the seed storage fill and be arranged in the leading-in kind subassembly of leading of holding in kind shrinkage pool of rice seed that will store up kind of fill, lead kind of subassembly and include a plurality of interval arrangement's in proper order baffle, form vertical arrangement's the passageway of falling kind between two adjacent baffles, interval between two adjacent baffles and each baffle and seed metering wheel interval between the lateral wall all around all are less than the length of rice seed and are greater than the thickness of rice seed.

The partition board on at least one side of each seed dropping channel is movably arranged in a reciprocating manner along the axial direction parallel to the seed sowing wheel, and each movably arranged partition board is connected with a driving mechanism and driven by the driving mechanism to reciprocate.

Compared with the prior art, the utility model has the advantages of:

the seed metering control assembly of the rice precision dibbling and seeding device can store more than two batches of rice seeds discharged by the seed metering device and independently control the stored rice seeds to be discharged in batches, and because the seed metering control assembly can buffer a plurality of batches of rice seeds, even if the seed metering device has a seed leakage phenomenon when discharging the rice seeds in a certain batch, the plurality of batches of rice seeds buffered when discharging the rice seeds in batches by the seed metering control assembly can be mutually supplemented, thereby greatly reducing the seed leakage rate; meanwhile, the precision rice dibbling and seeding device does not need to improve a seed sowing device, only needs to add a seed sowing control assembly on the basis of the existing seed sowing device, is easy to implement and manufacture, and has low implementation and manufacture cost.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a rice precision dibbling and seeding device.

Fig. 2 is a schematic perspective view of the seed discharge control assembly.

FIG. 3 is a cross-sectional view of the seed metering control assembly with the seed plate in the first position.

FIG. 4 is a cross-sectional view of the seed metering control assembly with the seed plate between the first and second positions.

FIG. 5 is a cross-sectional view of the seed metering control assembly with the seed plate in the second position.

FIG. 6 is a schematic cross-sectional view of a seed meter without a seed guiding assembly.

FIG. 7 is a schematic cross-sectional perspective view of a seed meter having a seed guiding assembly.

FIG. 8 is a partially cut-away perspective view of a seed meter having a seed guiding assembly.

Illustration of the drawings:

1. a seed storage hopper; 2. a seed sowing device; 20. a seed discharge outlet; 21. a seed sowing wheel; 211. seed accommodating concave holes; 22. protecting the seed plate; 23. a containment plate; 3. a seed discharge control assembly; 31. storing the seed plates; 311. a vertical seed accommodating through hole; 32. seed falling; 321. a vertical seed falling through hole; 33. moving the seed plate; 331. vertically transferring seed through holes; 34. a slip drive mechanism; 341. a turntable; 342. a groove plate; 4. a support; 5. a brush; 6. a partition plate; 7. and (4) a seed dropping channel.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1 and 2, the precision rice dibbling and seeding device of the present embodiment includes a support 4, a seed storage hopper 1 for storing rice seeds and a seed sowing device 2 connected to the seed storage hopper 1 for discharging the rice seeds in a batch manner are installed on the support 4, and a seed sowing control assembly 3 capable of storing more than two batches of rice seeds discharged by the seed sowing device 2 and individually controlling the stored rice seeds to be discharged in batches is installed below a seed sowing outlet 20 of the seed sowing device 2. The seed metering control assembly 3 of the rice precision dibbling and seeding device can store more than two batches of rice seeds discharged by the seed metering device 2 and independently control the stored rice seeds to be discharged in batches, and because the seed metering control assembly 3 can buffer a plurality of batches of rice seeds, even if the seed leakage phenomenon exists when a certain batch of rice seeds are discharged by the seed metering device 2, the plurality of batches of rice seeds buffered can be mutually supplemented when the rice seeds are discharged in batches by the seed metering control assembly 3, thereby greatly reducing the miss-seeding rate; meanwhile, the precision rice dibbling and seeding device does not need to improve the seed sowing device 2, and only needs to add the seed sowing control assembly 3 on the basis of the existing seed sowing device 2, so that the precision rice dibbling and seeding device is easy to implement and manufacture and has low implementation and manufacturing cost.

In this embodiment, the seed discharging control assembly 3 includes a seed storage plate 31 mounted on the support 4, the seed storage plate 31 is provided with a plurality of vertical seed containing through holes 311 capable of containing more than two rice seeds and enabling the more than two rice seeds to be sequentially stacked from bottom to top, and the seed discharging control assembly 3 further includes a synchronous intermittent seed discharging switch for controlling all the vertical seed containing through holes 311 to discharge only one rice seed at a time. Store up a plurality of vertical appearance kind through-holes 311 on kind of plate 31 and just in time correspond respectively and accept to hold by every batch of the many kinds of rice of discharging of seed metering ware 2, because every vertical appearance kind through-hole 311 can hold more than two kinds of rice and make more than two kinds of rice pile up in proper order by supreme arranging, also store up kind of plate 31 and can deposit more than two batches of rice, this kind stores up kind of structure and has simple structure, easily preparation, advantage with low costs. The cross-sectional dimension of the vertical seed holding through hole 311 is slightly larger than that of the rice seeds, the length of the vertical seed holding through hole 311 is the sum of the thicknesses of more than two rice seeds, so that the rice seeds can smoothly fall into the vertical seed holding through hole 311 and fall out of the vertical seed holding through hole 311, and a plurality of rice seeds can only be stacked in the vertical seed holding through hole 311 from bottom to top in sequence, and the specific dimension of the vertical seed holding through hole can be set conventionally within a certain range according to the functional requirements.

In this embodiment, the synchronous intermittent seed-metering switch comprises a seed-dropping plate 32 and a seed-shifting plate 33, the seed-shifting plate 33 is provided with a vertical seed-shifting through hole 331 capable of accommodating only one seed corresponding to each vertical seed-holding through hole 311, the seed-dropping plate 32 is provided with a vertical seed-dropping through hole 321 for dropping the seed corresponding to each vertical seed-shifting through hole 331, the seed-dropping plate 32 is fixedly mounted on the support 4, the seed-shifting plate 33 is connected with a sliding driving mechanism 34 and driven by the sliding driving mechanism 34 to reciprocate between a first position and a second position, when the seed-shifting plate 33 is at the first position, each vertical seed-holding through hole 311 is communicated with the corresponding vertical seed-shifting through hole 331 and the seed-dropping plate 32 seals the bottom of the vertical seed-holding through hole 311, when the seed-shifting plate 33 is at the second position, each vertical seed-dropping through hole 321 is communicated with the corresponding vertical seed-shifting through hole 331, and when the seed-shifting plate 33 is at the first position and the second position, each vertical seed-holding through hole 311 is sealed by the bottom of each vertical seed- Is closed at the bottom. When the rice seeds are controlled to be discharged, firstly, the sliding driving mechanism 34 drives the seed moving plate 33 to move to the first position, so that each vertical seed containing through hole 311 is communicated with the corresponding vertical seed moving through hole 331, and because the seed falling plate 32 seals the bottom of the vertical seed moving through hole 331 at the moment, one rice seed positioned at the bottom in each vertical seed containing through hole 311 falls into the corresponding vertical seed moving through hole 331 under the action of self weight (see fig. 3); then, the sliding driving mechanism 34 drives the seed moving plate 33 to move to the second position, in the process, the seed falling plate 32 keeps closing the bottom of the vertical seed moving through hole 331, and the rice seeds falling into the vertical seed moving through hole 331 are kept in the vertical seed moving through hole 331 and pushed to the corresponding vertical seed falling through hole 321 (see fig. 4); when the sliding driving mechanism 34 drives the seed moving plate 33 to move to the second position, each vertical seed moving through hole 331 is communicated with the corresponding vertical seed dropping through hole 321, and the rice seeds in each vertical seed moving through hole 331 fall through the corresponding vertical seed dropping through hole 321 under the action of self weight (see fig. 5), so that the rice seeds are discharged. When the seed moving plate 33 is at a position other than the first position, the seed moving plate 33 seals the bottom of each vertical seed accommodating through hole 311, so that rice seeds in the vertical seed accommodating through holes 311 are prevented from falling. The synchronous intermittent seed metering switch has the advantages of simple and compact structure, easy manufacture, low cost and stable and reliable work. The size of the vertical seed transferring through-hole 331 is set to be slightly larger than that of the rice seed so that the rice seed can smoothly enter the vertical seed transferring through-hole 331, and one vertical seed transferring through-hole 331 can accommodate only one rice seed, and the specific size thereof can be set conventionally within a certain range according to the functional requirements.

In this embodiment, the sliding driving mechanism 34 includes a rotating disc 341 rotatably mounted on the bracket 4 and a slot plate 342 fixedly connected to the seed-moving plate 33, the slot plate 342 has a bar-shaped driving slot, the rotating disc 341 is provided with a shift lever deviating from the rotating axis of the rotating disc 341, the shift lever is inserted into the bar-shaped driving slot and is matched with the bar-shaped driving slot along with the rotation of the rotating disc 341 to force the seed-moving plate 33 to move back and forth, and the sliding driving mechanism 34 further includes a rotary driving member for driving the rotating disc 341 to rotate. When the rotary driving member drives the rotating disc 341 to rotate, the shift lever performs a circular motion, so as to cooperate with the strip-shaped driving slot to drive the seed moving plate 33 to reciprocate. The sliding driving mechanism 34 has a simple structure and is stable and reliable in operation, and is driven by a rotary driving piece, so that the sliding driving mechanism and the seed sowing device 2 can share the same driving piece (such as a motor, a hydraulic motor and the like), and the cost and the control difficulty are reduced. Preferably, the seed transfer plate 33 is slidably disposed, so that the operational stability and reliability can be improved.

In this embodiment, as shown in fig. 6, the seed sowing device 2 includes a seed protecting plate 22, a seed sowing wheel 21 rotatably mounted on the support 4 around a horizontal axis, and a rotary driving mechanism for driving the seed sowing wheel 21 to rotate, wherein a plurality of seed accommodating concave holes 211 for accommodating single rice seeds are formed in the peripheral side wall of the seed sowing wheel 21, the upper portion of the seed sowing wheel 21 extends into the outlet of the seed storage bucket 1 and blocks the outlet of the seed storage bucket 1, a seed sowing outlet 20 is formed below the seed sowing wheel 21, the seed protecting plate 22 is fixedly mounted on the support 4 and covers the exterior of the seed sowing wheel 21, and the seed protecting plate 22 extends from the outlet of the seed storage bucket 1 to the seed sowing outlet 20 along the rotation direction of the seed sowing wheel 21. The rotary driving mechanism drives the seed discharging wheel 21 to rotate, the seed containing concave holes 211 on the seed discharging wheel 21 intermittently enter the outlet of the seed storing bucket 1, so that rice seeds in the seed storing bucket 1 enter the seed containing concave holes 211, the rice seeds entering the seed containing concave holes 211 can move towards the seed discharging outlet 20 along with the rotation of the seed discharging wheel 21, and before moving to the seed discharging outlet 20, the rice seeds cannot drop from the seed containing concave holes 211 due to the limiting effect of the seed protecting plate 22 until moving to the seed discharging outlet 20, the rice seeds lose the limiting effect of the seed protecting plate 22 and drop under the self-weight effect to enter the seed discharging control assembly 3. The size of the seed holding concave hole 211 is set to be slightly larger than that of the rice seeds, so that the rice seeds can smoothly enter the seed holding concave hole 211, one seed holding concave hole 211 can only hold one rice seed, and the specific size of the seed holding concave hole 211 can be set conventionally according to the functional requirements within a certain range according to the material characteristics of the actual rice seed varieties. According to the principle of minimum potential energy, the long edge (corresponding to the long edge of the rice seeds) of the seed containing concave hole 211 is arranged to be parallel to the axial direction of the seed sowing wheel 21, so that the rice seeds can fall conveniently.

In this embodiment, the plurality of seed holding concave holes 211 are divided into a plurality of hole groups, the plurality of hole groups are arranged at intervals around the seed sowing wheel 21, each hole group comprises more than two seed holding concave holes 211 which are sequentially arranged at intervals along the axial direction of the seed sowing wheel 21, the seed storage plate 31 is positioned below the seed sowing outlet 20, and the seed holding concave holes 211 in each hole group are consistent in number and correspond to the seed storage plate 31 in position one by one, wherein the seed holding concave holes 311 are vertical to the seed storage plate 311. That is, each group of hole groups is provided with a seed containing concave hole 211 corresponding to each vertical seed containing through hole 311, and each seed containing concave hole 211 is just positioned right above the corresponding vertical seed containing through hole 311 when moving to the seed outlet 20. When each group of hole groups rotates to the seed outlet 20 along with the seed wheel 21, the rice seeds in the seed containing concave holes 211 of the hole group can fall into the corresponding vertical seed containing through holes 311.

In this embodiment, the seed sowing device 2 further comprises a containment plate 23, the containment plate 23 is fixedly mounted on the support 4, and the containment plate 23 extends from the seed discharging outlet 20 to the outlet of the seed storage hopper 1 along the rotation direction of the seed sowing wheel 21. The containment plate 23 serves to protect the seed wheel 21 from being packed.

In this embodiment, the seed discharging speed of the seed discharging control component 3 is smaller than that of the seed discharging device 2, so that the situation that rice seeds are always in each vertical seed accommodating through hole 311 can be ensured. In the actual operation process, if a certain vertical seed holding through hole 311 is filled with rice seeds, even if the seed holding concave hole 211 corresponding to the vertical seed holding through hole 311 in the seed sowing device 2 moves to the seed sowing outlet 20, the rice seeds in the seed holding concave hole cannot fall out and can continue to move along with the seed sowing wheel 21, and only when the vertical seed holding through hole 311 has a space for holding the rice seeds, the rice seeds in the seed holding concave hole 211 can fall into the vertical seed holding through hole 311.

In the preferred embodiment, as shown in fig. 7 and 8, a brush 5 is disposed at a gap between the seed storage bucket 1 and the seed sowing wheel 21 near the seed protection plate 22, and the brush 5 can clean the rice seeds which are not in the seed storage bucket 1 and enter the seed containing concave hole 211, so as to avoid the phenomena of abrasion and blockage of the rice seeds.

In the preferred embodiment, as shown in fig. 7 and 8, the seed storage bucket 1 is provided with a seed guiding assembly for guiding the rice seeds in the seed storage bucket 1 into the seed containing concave hole 211, the seed guiding assembly comprises a plurality of partition plates 6 sequentially arranged at intervals, a seed dropping channel 7 vertically arranged is formed between every two adjacent partition plates 6, and the distance between every two adjacent partition plates 6 and the distance between every partition plate 6 and the peripheral side wall of the seed sowing wheel 21 are both smaller than the length of the rice seeds and larger than the thickness (height) of the rice seeds. The rice seeds in the seed storage bucket 1 are guided to the seed sowing wheel 21 through the seed falling channel 7, and the distance between every two adjacent partition plates 6 and the distance between every partition plate 6 and the peripheral side wall of the seed sowing wheel 21 are smaller than the length of the rice seeds and larger than the thickness of the rice seeds, so that the rice seeds can fall into the seed containing concave holes 211 in basically the same posture, and the seed filling success rate can be improved.

Furthermore, the partition plates 6 on at least one side of each seed dropping channel 7 are movably arranged in a reciprocating manner along the axial direction parallel to the seed sowing wheel 21, each movably arranged partition plate 6 is connected with a driving mechanism and driven by the driving mechanism to reciprocate, and the driving mechanism is adopted to drive the partition plates 6 to reciprocate, so that the seed dropping channels 7 can be prevented from being stacked and blocked. The above-described drive mechanism is not shown in the drawings, and an existing conventional reciprocating drive mechanism may be employed.

Furthermore, the upper part of the seed falling channel 7 is provided with an introducing port with the width gradually reduced from top to bottom, which is beneficial for the rice seeds in the seed storage hopper 1 to smoothly enter the seed falling channel 7.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention shall be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides a smart volume dibble seeding device of rice, includes support (4), install on support (4) and be used for storing seed rice store up kind fill (1) and with store up kind fill (1) and link to each other and be used for making seed rice in the mode of batching exhaust seed metering ware (2), its characterized in that: a seed discharging control component (3) which can store more than two batches of rice seeds discharged by the seed discharging device (2) and independently control the stored rice seeds to be discharged in batches is arranged below a seed discharging outlet (20) of the seed discharging device (2).

2. The precision dibbling and seeding device for rice according to claim 1, characterized in that: seed metering control assembly (3) is including installing seed storage board (31) on support (4), seed storage board (31) are equipped with a plurality of vertical seed holding through-holes (311) that can hold more than two rice seeds and make more than two rice seeds stack up the arrangement in proper order from bottom to top, seed metering control assembly (3) still include the synchronous intermittent type seed metering switch that is used for controlling all vertical seed holding through-holes (311) synchronous intermittent type seed metering and every vertical seed holding through-hole (311) only discharge a rice seed at every turn.

3. The precision dibbling and seeding device for rice according to claim 2, characterized in that: the synchronous intermittent seed metering switch comprises a seed dropping plate (32) and a seed moving plate (33), wherein the seed moving plate (33) is provided with a vertical seed moving through hole (331) which can only accommodate one seed corresponding to each vertical seed accommodating through hole (311), the seed dropping plate (32) is provided with a vertical seed dropping through hole (321) which allows the seed to fall corresponding to each vertical seed moving through hole (331), the seed dropping plate (32) is fixedly arranged on a bracket (4), the seed moving plate (33) is connected with a sliding driving mechanism (34) and driven by the sliding driving mechanism (34) to reciprocate between a first position and a second position, each vertical seed accommodating through hole (311) is communicated with the corresponding vertical seed moving through hole (331) when the seed moving plate (33) is at the first position, the seed dropping plate (32) seals the bottom of the vertical seed moving through hole (331), and each vertical seed dropping through hole (321) is communicated with the corresponding vertical seed moving through hole (331) when the seed moving plate (33) is at the second position, when the seed moving plate (33) is positioned between the first position and the second position, the seed moving plate (33) closes the bottom of each vertical seed accommodating through hole (311) and the seed dropping plate (32) closes the bottom of each vertical seed moving through hole (331).

4. The precision dibbling and seeding device for rice according to claim 3, characterized in that: the sliding driving mechanism (34) comprises a rotary table (341) rotatably mounted on the support (4) and a groove plate (342) fixedly connected to the seed moving plate (33), the groove plate (342) is provided with a strip driving groove, the rotary table (341) is provided with a shifting lever deviating from the rotation axis of the rotary table (341), the shifting lever is inserted into the strip driving groove and is matched with the strip driving groove along with the rotation of the rotary table (341) to force the seed moving plate (33) to move in a reciprocating manner, and the sliding driving mechanism (34) further comprises a rotary driving piece for driving the rotary table (341) to rotate.

5. The precision dibbling and seeding device for rice according to claim 3, characterized in that: seed metering ware (2) including seed protection board (22), rotate around horizontal axis and install seed metering wheel (21) on support (4) and be used for driving seed metering wheel (21) pivoted rotary driving mechanism, be equipped with a plurality of seed holding shrinkage pools (211) that are used for holding single rice seed on the lateral wall all around of seed metering wheel (21), the upper portion of seed metering wheel (21) stretches into in the export of seed storage fill (1) and the export of shutoff seed storage fill (1), the below of seed metering wheel (21) is equipped with seed metering export (20), seed protection board (22) fixed mounting is in the outside of seed metering wheel (21) on support (4) and the cladding, and seed protection board (22) extend to seed metering export (20) from the export of seed storage fill (1) along seed metering wheel (21) rotation direction.

6. The precision dibbling and seeding device for rice according to claim 5, wherein: a plurality of kinds of shrinkage pools (211) of holding divide into a plurality of punch combination, and a plurality of punch combination are around seed metering wheel (21) interval arrangement, and each punch combination includes two above holding kind shrinkage pools (211) along seed metering wheel (21) axial interval arrangement in proper order, store up kind of a seed (31) and be located the below of seed metering export (20), and hold kind of a shrinkage pool (211) and store up kind of a seed board (31) in every punch combination and go up vertical quantity unanimous and the position one-to-one who holds kind through-hole (311).

7. The precision dibbling and seeding device for rice according to claim 6, wherein: the seed metering device (2) further comprises a containment plate (23), the containment plate (23) is fixedly installed on the support (4), and the containment plate (23) extends from the seed outlet (20) to the outlet of the seed storage hopper (1) along the rotation direction of the seed metering wheel (21).

8. The precision dibbling and seeding device for rice according to claim 5, 6 or 7, wherein: a brush (5) is arranged at a gap between the seed storage hopper (1) and the seed sowing wheel (21) and close to one side of the seed protection plate (22).

9. The precision dibbling and seeding device for rice according to claim 6 or 7, wherein: be equipped with in the seed storage fill (1) and be arranged in the seed storage fill (1) the leading-in kind subassembly of leading of holding in kind shrinkage pool (211) of rice seed, lead kind of subassembly and include a plurality of baffle (6) of interval arrangement in proper order, form vertical arrangement between two adjacent baffle (6) kind passageway (7) that fall, interval between two adjacent baffle (6) and each baffle (6) and seed metering wheel (21) interval between the lateral wall all around all be less than the length of rice seed and be greater than the thickness of rice seed.

10. The precision dibbling and seeding device for rice according to claim 9, wherein: the partition plates (6) on at least one side of each seed falling channel (7) are movably arranged in a reciprocating manner along the axial direction parallel to the seed sowing wheel (21), and each movably arranged partition plate (6) is connected with a driving mechanism and driven by the driving mechanism to reciprocate.

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