Rice dry direct seeding watering device and rice dry seeding machine

By designing a dry direct seeding watering device and a mulching mechanism for rice, the problems of uneven watering and loose mulch in traditional equipment were solved, water conservation and an increase in the germination rate were achieved, thereby improving rice production efficiency.

CN116918503BActive Publication Date: 2025-09-12ZHEJIANG GARDEN BEE HORTICULTURE TECH CO LTD
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202310983019.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-04
Publication Date
2025-09-12
Estimated Expiration
2043-08-04

AI Technical Summary

Technical Problem

The water outlet of the traditional rice film-covered dry direct seeding equipment is directly directed towards the sowing belt, causing the rice seeds in the sowing belt to be flushed out. The water output is not concentrated and uniform, the water consumption is large, and after watering, the ground film and the sowing belt are not tightly fitted, resulting in a low germination rate, poor growth, and low yield.

Method used

A device for direct seeding of rice in dry land is designed, comprising a mobile body, a machine system and a lifting assembly. The machine system includes a ridging and sowing mechanism and a watering mechanism. The watering mechanism achieves uniform watering and leveling through irrigation pipes and scrapers, and is combined with a film covering mechanism to ensure that the ground film fits tightly with the sowing belt.

Benefits of technology

It achieves centralized and uniform water use for irrigation, reduces water consumption, improves the germination rate and the germination and rooting environment of rice seeds, and the ground film fits tightly with the sowing belt, which improves the rice germination rate and yield.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116918503B_ABST
    Figure CN116918503B_ABST
Patent Text Reader

Abstract

The present invention relates to a dry direct seeding watering device for rice and a dry direct seeding machine for rice, comprising a mobile body and an implement system. The implement system includes an implement frame, and the implement frame is provided with a ridging and sowing mechanism for creating a plurality of parallel and continuous ridges and furrows on the field, and sowing dry direct seeding rice seeds in the furrows to form a sowing belt; a watering mechanism including a water tank, an irrigation pipe, and a scraper; the input end of the irrigation pipe is connected to the water tank, and the output end thereof has a plurality of scrapers, which are respectively arranged at the furrows for watering the dry direct seeding rice seeds; and a plurality of scrapers, which are respectively arranged at the output ends of the plurality of irrigation pipes, to guide the watering path to the dry direct seeding rice seeds and smooth the sowing belt after watering. The present invention uses water in a concentrated and uniform manner, significantly reducing water consumption. At the same time, after the scraper is smoothed, the rice seeds are fully in contact and bonded with the soil, providing a good environment for germination and rooting of the rice seeds. The ground film is tightly adhered to the surface of the sowing belt, effectively improving the emergence rate of the seedlings through the film.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a rice dry seeding watering device and a rice dry seeding machine. Background Art

[0002] With climate change and the continuous increase in industrial and urban water consumption, the conflict between limited water resources and agricultural water use is becoming increasingly tense. Drought-resistant, water-saving, simple, high-yield, and efficient cultivation has become a trend in modern agricultural development. Rice film-mulched dry direct seeding is a water-saving, cost-saving, and efficiency-enhancing cultivation model.

[0003] At present, the degree of automation of rice film-covered dry direct seeding machinery is low, and it is difficult to give full play to the advantages of rice film-covered dry direct seeding cultivation. The watering device of traditional rice film-covered dry direct seeding equipment without openings has its water outlet directly facing the sowing belt, which will wash out the rice seeds in the sowing belt covered with soil, and the water outlet is not concentrated and uniform, and the water consumption is large; at the same time, the ground film is not smoothed after watering, and the covering film cannot fit tightly with the surface of the sowing belt, resulting in a low rice film-penetrating seedling rate, the seedlings are stuffy under the film, there are serious seedling shortages and broken ridges, poor growth, and low yield, which needs further improvement and improvement.

[0004] Therefore, we propose a rice dry direct seeding watering device and a rice dry seeding machine. Summary of the Invention

[0005] The embodiments of the present application provide a rice dry direct seeding watering device and a rice dry seeding machine, which at least solve the problems in the prior art that the water outlet of the traditional watering device is directly directed towards the sowing belt, which will wash out the rice seeds in the sowing belt covered with soil, and the water outlet is not concentrated and uniform, and the water consumption is large; at the same time, the ground film is not leveled after watering, and the covering ground film cannot fit tightly with the surface of the sowing belt, resulting in a low rice film penetration rate, seedlings being trapped under the film, serious seedling shortages and broken ridges, poor growth, and low yield.

[0006] In a first aspect, an embodiment of the present invention provides a rice dry direct seeding watering device, comprising a mobile body that moves along an operation path and an implement system disposed at the rear side of the moving direction of the mobile body, the implement system comprising an implement frame, and the implement frame is provided with:

[0007] Ridge-forming and sowing mechanism, used to create a number of parallel and continuous ridges and furrows on the field, and to directly sow rice seeds in the furrows to form a sowing belt;

[0008] The watering mechanism includes: a water tank, an irrigation pipeline and a scraper. The input end of the irrigation pipeline is connected to the water tank, and the output end thereof has several scrapers respectively arranged at the ditches for watering the dry-seeded rice seeds. The scrapers are arranged at the output ends of the irrigation pipelines to guide the watering path to the dry-seeded rice seeds and scrape the sowing belt after watering.

[0009] Optionally, the irrigation pipeline includes: a water pipe, whose input end is connected to the bottom wall of the water tank and is installed with a water pump; a water diversion valve, having an input end and multiple output ends, whose input end is connected to the output end of the water pipe; there are several water diversion pipes, whose input ends are respectively connected to the output ends of the water diversion valves, and the output ends of the several water diversion pipes are respectively arranged in the ditches to water the sowing belts.

[0010] Optionally, a water outlet nozzle is installed on the output end of the water distribution pipe, and the water outlet tap is a flat-mouth nozzle to evenly water the sowing belt.

[0011] Optionally, the scraper blade includes a diversion portion and a leveling portion, wherein the diversion portion is fixed at an upper position of the ditch and is matched with the water outlet path at the output end of the irrigation pipeline to divert water to the direct-seeded rice seeds in the ditch; the leveling portion is parabolic in shape, and the bottom end of the parabolic arc contacts the ground to level the sowing belt after watering.

[0012] Further, optionally, the scraping blade is parabolic and elastic so as to fully contact the ground at the bottom of the ditch and scrape it smooth.

[0013] Further, optionally, a siphon check valve is installed on a section of the water pipe close to the water pump.

[0014] Furthermore, optionally, a liquid level alarm is provided in the water tank to detect and warn of the remaining water amount in the water tank.

[0015] Optionally, the water tank is arranged on the mobile body to reduce the load-bearing weight of the tool rack.

[0016] In a second aspect, an embodiment of the present invention provides a rice direct seeding machine, comprising the above-mentioned rice direct seeding watering device, and further comprising a lifting assembly;

[0017] There are several lifting components which are all fixed on the mobile body, and the output ends of the lifting components are connected with the tool frame to drive the tool frame to move up and down.

[0018] The present invention mainly has the following beneficial effects:

[0019] The mobile body of the present invention carries the equipment system to operate in the field. The irrigation pipeline draws the irrigation water in the water tank to the top of the sowing belt in the ditch and guides it through the scraper to flow to the sowing belt covered with soil, so that the rice seeds in the sowing belt covered with soil will not be washed out. After the sowing belt is watered, the scraper moves with the body to level the bottom of the ditch after watering. The water used for watering is concentrated and uniform. At the same time, compared with the traditional irrigation method, the water consumption is greatly reduced. At the same time, after the scraper is smoothed, the rice seeds are fully contacted and bonded with the soil, providing a good environment for the germination and rooting of the rice seeds. The ground film is tightly fitted to the surface of the sowing belt, effectively improving the film penetration rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of the rice direct seeding machine proposed in the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of the rice direct seeding machine proposed by the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of the watering device for direct seeding rice. Figure 1 .

[0024] Figure 4 This is a schematic diagram of the structure of the watering device for direct seeding rice. Figure 2 .

[0025] Figure 5 It is a schematic diagram of the combined structure of the mobile body, tool frame and lifting assembly in the present invention.

[0026] Figure 6 It is a structural schematic diagram of the ridging seeder of the present invention.

[0027] Figure 7 Schematic diagram of the laminating mechanism structure of the present invention Figure 1 .

[0028] Figure 8 Schematic diagram of the laminating mechanism structure of the present invention Figure 2 .

[0029] Description of reference numerals: power system, mobile body 10, walking track 101, body shell 102;

[0030] Machine system, machine frame 201, machine shell 202, lifting assembly 203, film covering mechanism 30, ridging and sowing mechanism 60, watering mechanism 70,

[0031] Laminating mechanism 30, ground film roller 301, film roller bracket 302, film guide inclined wheel 303, middle wheel 304, pressing wheel 305, wheel frame 306;

[0032] Ridge sowing mechanism 60, front retaining plate 601, ridge forming part 602, furrow bottom forming part 603, seed guide 604, soil taking hole 605, soil drop guide 606, seed placement port 607, soil drop port 608;

[0033] Watering mechanism 70, water tank 701, water supply port 702, irrigation pipeline 703, water delivery pipe 7031, water distribution valve 7032, water distribution pipe 7033, water outlet nozzle 7034, water pump 7035, liquid level alarm 704, scraper blade 705, diversion part 7051, and leveling part 7052. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1

[0037] The embodiment of the present invention provides a device for direct seeding rice. Figure 1-2 , including a mobile body 10 that moves along a working path and a tool system disposed at the rear side of the mobile body 10 in the moving direction, the tool system including a tool frame 201, furthermore, the tool frame 201 is provided with an integrally protected tool housing 202, and the tool frame 201 is provided with:

[0038] The ridge-forming and sowing mechanism 60 is used to form a plurality of parallel and continuous ridges a and furrows b on the field, and to sow rice seeds directly in the furrows b to form a sowing belt; Figure 5 and 6 , including: furrow plate, front retaining plate 601 and seed guide groove 605;

[0039] Among them, the front retaining plate 601 is arranged on the side of the furrow plate close to the mobile body 10 and tilted from bottom to top toward the side of the mobile body 10. The furrow plate is formed with a plurality of parallel and alternating ridge forming parts 602 and furrow bottom forming parts 603 to open a plurality of parallel and continuous ridges a and furrows b on the field; the seed guide grooves 604 are arranged on the furrow bottom forming parts 603 and pass through the furrow bottom forming parts 603 to form a sowing belt for direct seeding of dry rice seeds in furrow b and evenly cover the soil. In this embodiment, a plurality of soil holes 605 corresponding to the positions of the furrow bottom forming parts 603 are opened on the side of the front retaining plate 601 close to the mobile body 10;

[0040] In the technical solution of the above embodiment, the inclined setting of the front retaining plate 601 cooperates with the ridge forming part 602 and the ditch bottom forming part 603 formed on the ridge plate to form a "boat bottom" type. The mobile body 10 carries the machine system to operate in the field. During the movement, several parallel and continuous ridges a and furrows b are opened on the field through several parallel and alternating ridge forming parts 602 and furrow bottom forming parts 603. The ridge forming part 602 and furrow bottom forming part 603 compact and shape the soil gathered at the ridge top and furrow bottom to form a standard ridge type with smooth ridge top and furrow bottom. The seed guide groove 604 corresponds to the direct seeding of rice in the seed box 90 in the furrow b to form a sowing belt and evenly cover the soil. The seed placement is accurate, which effectively improves the film penetration and emergence rate.

[0041] In this embodiment, refer to the attached Figure 3 and 4 The watering mechanism 70 includes a water tank 701, an irrigation pipe 703, and a scraper 705. In this embodiment, a liquid level alarm 704 is provided in the water tank 701 to detect and warn the remaining water in the water tank 701, and the water tank 701 is arranged on the mobile body 10 to reduce the bearing gravity of the tool frame 201. The input end of the irrigation pipe 703 is connected to the water tank 701, and the output end thereof has a plurality of scrapers 705, which are respectively arranged at the output ends of the plurality of irrigation pipes 703 to guide the watering path of the dry direct-seeding rice seeds and scrape the bottom of the ditch b after watering.

[0042] In the technical solution of the above embodiment, the mobile body 10 carries the machine system to operate in the field, the ridge-forming and sowing mechanism 60 opens continuous furrows and directly sows rice seeds in furrow b to form a sowing belt and evenly covers the soil, the irrigation pipeline 703 draws the irrigation water in the water tank 701 to the top of the sowing belt in furrow b and diverts it through the scraper blade 705 to flow to the sowing belt covered with soil, and will not wash out the rice seeds in the sowing belt covered with soil. After watering the sowing belt, the scraper blade 705 moves with the random body and flattens the bottom of furrow b after watering. The water used for watering is concentrated and uniform. At the same time, compared with traditional irrigation methods, the water consumption is greatly reduced. At the same time, after the scraper blade 705 is smoothed, the rice seeds are fully contacted and bonded with the soil, providing a good environment for the germination and rooting of the rice seeds. The ground film is tightly fitted to the surface of the sowing belt, effectively improving the film penetration rate.

[0043] In one embodiment, Figure 3-4 As shown, the irrigation pipeline 703 includes: a water pipe 7031, whose input end is connected to the bottom wall of the water tank 701 and is installed with a water pump 7035. In this embodiment, the water pump 7035 is placed at the bottom of the inner cavity of the water tank 70 to ensure that the water suction port of the pump body of the water pump 7035 is downward and sunk into the irrigation water at the bottom, and a siphon check valve is installed on a section of the water pipe 7031 close to the water pump 7035, and a water outlet nozzle 7034 is installed on the output end of the water diversion pipe 7033, and the water outlet tap 7034 is a flat-mouthed nozzle to uniformly water the dry direct-seeded rice seeds in the ditch b; the water diversion valve 7032 has an input end and multiple output ends, its input end is connected to the output end of the water pipe 7031. There are several water diversion pipes 7033, whose input ends are respectively connected to the output ends of the water diversion valve 703, and the output ends of the several water diversion pipes 7033 are respectively arranged at the ditch b to water the sowing belt.

[0044] In one embodiment, the scraper blade 705 includes a guide portion 7051 and a leveling portion 7052, wherein the guide portion 7051 is fixed above the ditch b and is matched with the water outlet path of the output end of the irrigation pipe 703 to guide water to the direct-seeded rice seeds in the ditch b; the leveling portion 7052 is parabolic, and the bottom end of the parabolic arc contacts the ground to level the bottom of the ditch b after watering; in this embodiment, the scraper blade 705 is parabolic and elastic so as to fully contact the ground at the bottom of the ditch b and smooth it.

[0045] In this embodiment, the water tank capacity is set to 120 liters. By adjusting the flow rate of each water diversion valve 703 to be equal, one tank of water can meet the sowing needs of 0.6 mu of land. At the same time, the flat mouth of the faucet 7034 is perpendicular to the walking direction, the angle between the faucet 7034 and the horizontal ground is 70 degrees, and the height above the ground is about 5 cm. After the scraper 705 is tilted and fixed, the angle between the upper guide portion 7051 and the horizontal ground is 70 degrees, and the bottom end of the parabolic arc of the flattening portion 7052 touches the ground.

[0046] In the technical solution of the above embodiment, the flat-mouthed nozzle-shaped water outlet faucet 7034 can effectively increase the width of the water outlet and evenly water the sowing belt, and the flat-mouthed nozzle-shaped water outlet faucet 7034 can effectively adapt to the diversion part 7051 of the scraper 705 to divert water to the dry direct-seeded rice seeds in the ditch b. The water used for watering is concentrated and uniform. After the watering is completed, the leveling part 7052 elastically contacts the ground at the bottom of the ditch b and scrapes and smoothes the sowing belt, providing good conditions for the subsequent bonding of the ground film.

[0047] Furthermore, a film covering mechanism 30 is required to cooperate with the sowing belt to lay a continuous ground film; Figure 7 and 8 , including: a film roller support 302, which is arranged on the machine frame 201; a ground film roller 301, which is wound with ground film and is vertically arranged above a plurality of ridges a and furrows b and is detachably rotatably mounted on the film roller support 302; a film collecting assembly, which is used to extract the ground film and tilt the ground film to cover the working path, so that the ground film is narrowed and attached to the sowing belt;

[0048] For details, please refer to the attached Figure 7 The film collecting assembly includes: a wheel frame 306, which is arranged on the side of the machine frame 201 away from the moving direction of the mobile body 10; a plurality of pressing wheels 305, which are rotatably mounted on the wheel frame 306 and are used to press the ground film onto the sowing belt; a plurality of film collecting rollers, which are horizontally and obliquely mounted on the wheel frame 306 and roll in contact with the lower end of the ground film roller 301, and a plurality of film collecting rollers are respectively matched and rolled in the groove b; wherein, the free end of the ground film passes around the plurality of pressing wheels 305 and After being rolled and extracted by the pressing wheel 305, the ground film is laid and pressed on the sowing belt, and then the ground film is narrowed by the horizontally inclined film collecting roller so that the ground film adheres to the sowing belt; the film collecting roller includes: at least one middle wheel 304, which rolls in the groove b located in the middle; a plurality of film guide inclined wheels 303, which roll symmetrically in the grooves b located on both sides of the middle wheel 304, and the lower ends of the film guide inclined wheels 303 are horizontally inclined outwards to press and collect the side edges of the ground film;

[0049] In the technical solution of the above embodiment, the mobile body 10 carries the equipment system to operate in the field, the ridge-forming and sowing mechanism 60 opens continuous furrows and sows dry-seeded rice seeds in furrow b to form a sowing belt, and then the pressing wheel 305 and the film collecting roller located downstream of the operation roll in furrow b, and the ground film roller 301 rotates synchronously with the film collecting roller under its own weight to release the film, and the free end of the ground film bypasses the pressing wheel 305 and is laid and pressed on the opened furrow after being extracted by the pressing wheel 305, so that the ground film is attached to the dry-seeded rice seeds in furrow b, and then the horizontally inclined film collecting roller narrows the ground film so that the ground film is attached to the sowing belt, and there is no gap between the rice seeds and the ground film. When the rice seeds germinate, they penetrate the film and emerge, and the emergence rate is high. Specifically, the middle wheel 304 is placed perpendicular to the ground, and the film guide inclined wheel 303 is tilted outward during installation. The rotation direction of the film collection roller is consistent with the walking direction. The width of the ground contact plane of the middle wheel 304 is about 5 cm. The ground film roller 301 is set directly above the middle wheel 304 and the film guide inclined wheel 303.

[0050] In the technical solution of the above embodiment, the horizontally inclined film collecting roller narrows the ground film so that the ground film is attached to the sowing belt, and there is no gap between the rice seeds and the ground film. Combined with the ground at the bottom of the ditch b that has been watered and scraped flat and the sowing belt, it can further ensure that the ground film is closely fitted to the surface of the sowing belt, effectively improving the film penetration and emergence rate.

[0051] In the second aspect, an embodiment of the present invention provides a rice dry direct seeding machine, which has the above-mentioned rice dry direct seeding watering device and also includes a lifting component 203; there are several lifting components 203 and they are all fixed on the mobile body 10, and the output end of the lifting component 203 is connected to the tool frame 201 to drive the tool frame 201 to rise and fall.

[0052] It can be understood that when the mobile body 10 carrying the implement system works in the field to the end of a path and needs to change to the next working path, the lifting component 203 drives the implement frame 201 to lift upward, and then lifts the implement system to move upward. After reaching the next working path, the lifting component 203 drives the implement frame 201 to descend and reset.

[0053] In the technical solution of the above embodiment, further, the bottom of the mobile body 10 has a walking track 101 for driving the body to move, and the mobile body 10 is provided with an overall protective body shell 102.

[0054] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A rice dry direct seeding watering device, comprising a mobile body (10) moving along an operation path and a machine system arranged at the rear side of the moving direction of the mobile body (10), characterized in that: The tool system comprises a tool frame (201), and the tool frame (201) is provided with: A ridge-forming and sowing mechanism (60) is used to create a plurality of parallel and continuous ridges and furrows on the field, and to dry-seed rice seeds in the furrows to form a sowing belt; The watering mechanism (70) comprises a water tank (701), an irrigation pipeline (703) and a scraper (705); the input end of the irrigation pipeline (703) is connected to the water tank (701), and the output end thereof has a plurality of scrapers (705) which are respectively arranged at the ditch to water the dry-seeded rice seeds; the scrapers (705) are arranged at the output ends of the irrigation pipelines (703) to guide the watering path to the dry-seeded rice seeds and scrape the sowing belt after watering; The irrigation pipeline (703) comprises: A water delivery pipe (7031), the input end of which is connected to the bottom wall of the water tank (701) and is equipped with a water pump (7035); A water diversion valve (7032) having an input end and multiple output ends, wherein the input end is connected to the output end of the water delivery pipe (7031); There are several water distribution pipes (7033), whose input ends are respectively connected to the output ends of the water distribution valve (7032), and the output ends of the several water distribution pipes (7033) are respectively arranged at the grooves to water the sowing belts; The scraper blade (705) includes a flow guide portion (7051) and a scraping portion (7052), wherein: The diversion portion (7051) is fixed at an upper position of the ditch and matchedly arranged on the water outlet path of the irrigation pipeline (703) to divert water to the sowing belt in the ditch; the leveling portion (7052) is in the shape of a parabola, and the bottom end of the parabola contacts the ground to level the bottom of the ditch after watering.

2. The device for direct seeding rice in dry land according to claim 1, characterized in that: A water outlet nozzle (7034) is installed on the output end of the water distribution pipe (7033), and the water outlet nozzle (7034) is a flat nozzle to evenly water the sowing belt in the ditch.

3. The device for direct seeding rice in dry conditions as claimed in claim 1, characterized in that: The scraper blade (705) is elastic.

4. The device for direct seeding rice in dry land according to claim 1, characterized in that: A siphon check valve is installed on a section of the water pipe (7031) close to the water pump (7035).

5. The device for direct seeding rice in dry land according to claim 1, characterized in that: A liquid level alarm (704) is provided in the water tank (701) to detect and warn of the remaining water in the water tank (701).

6. The device for direct seeding rice in dry land according to claim 1, characterized in that: The water tank (701) is arranged on the mobile body (10) to reduce the load-bearing weight of the tool rack (201).

7. A rice direct seeding machine, characterized in that: The rice dry direct seeding watering device according to any one of claims 1 to 6 further comprises a lifting assembly (203); the lifting assemblies (203) are in a plurality and are all fixed on the mobile body (10), and the output end of the lifting assembly (203) is connected to the tool frame (201) to drive the tool frame (201) to rise and fall.

Citation Information

Patent Citations

  • Agricultural levelly and smoothly plays to starch device with rectangular pieces of land in a field face

    CN205546440U

  • Clay and seed covering device matched with rice direct sowing machine and rice direct sowing machine

    CN213094896U

  • Dry direct seeding machine for rice

    CN219352298U

  • A rice dry direct seeding watering device and a rice dry seeding machine

    CN221010679U