A rice dry direct seeding machine's covering device
Patent Information
- Application Number
- CN202521411738.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-07-07
AI Technical Summary
[0004]现有的覆土装置中采用的存土箱，进土口和排土口单一，利用机械传动将土箱里的土一次性大量倾倒压膜，形成膜表面的堆状压土，压土不均匀，容易导致膜孔与种穴错位严重，从而使得许多稻苗不能从膜孔穿出而在膜下死亡
本实用新型中的分土箱结构，使得旋耕装置工作时，将土壤通过第一导土片的引导，甩入分土箱的多个进土口内，并从多个出土口处对应排出，较为全面地压在地膜顶面形成均匀的土埂，工作稳定，避免了侧取土导致的取土沟杂草丛生的问题。
Smart Images
Figure CN224638460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dry direct seeding machine, and more particularly to a soil covering device for a dry direct seeding machine for rice. Background Technology
[0002] The dry direct seeding of rice with full mulch film involves a dry direct seeding machine that sequentially performs operations such as tilling, fertilizing, laying mulch film, covering with soil, watering, sowing, and cutting the film in dry fields to achieve dryland rice cultivation. It has significant advantages in drought resistance, water conservation, fertilizer conservation, green production, high yield, and high efficiency. It is suitable for areas with scarce water resources and is of great significance for the development of the rice industry and food security in water-scarce and arid areas.
[0003] A typical dry direct seeding machine for rice with full mulch generally includes a rotary tillage device, a fertilization device, a mulch film laying device, a soil covering device, a watering device, and a seeding device.
[0004] Existing soil covering devices use soil storage boxes with only one inlet and outlet. A large amount of soil is poured from the box and pressed onto the membrane using mechanical transmission, creating a mound of soil on the membrane surface. Uneven soil compaction easily leads to severe misalignment between the membrane holes and the seed holes, causing many rice seedlings to die underneath the membrane because they cannot emerge from the holes. Furthermore, insufficient or inadequate soil compaction at the edges of the membrane makes it susceptible to being blown away by the wind, exposing the ground surface and resulting in overgrown weeds and severe moisture loss. Utility Model Content
[0005] The purpose of this invention is to provide a soil covering device for a dry-seeding rice machine. This invention features uniform and comprehensive soil compaction.
[0006] The technical solution of this utility model is as follows: a soil covering device for a rice dry direct seeding machine, including a soil distribution box, a plurality of soil inlets are evenly provided on the upper side of the soil distribution box, and an inclined first soil guide plate is provided on the upper edge of the soil inlet; a soil outlet corresponding to the soil inlet is provided on the lower edge of the soil inlet by a plurality of inclined second soil guide plates; a soil storage plate is rotatably connected above the soil inlet, and an electric push rod for driving the soil storage plate to flip is connected to the soil storage plate.
[0007] In the aforementioned soil covering device for a dry direct-seeding rice machine, the soil distribution box is provided with an outer cover.
[0008] In the aforementioned soil covering device for a dry direct-seeding rice machine, the diameter of the soil inlet is larger than the diameter of the soil outlet.
[0009] In the aforementioned soil covering device for a dry direct-seeding rice machine, the soil storage plate is elongated.
[0010] The aforementioned soil covering device for a dry rice direct seeding machine also includes a soil pressing wheel located behind the soil distribution box. The soil pressing wheel is installed at both ends of the crossbeam of the seeding device via a soil pressing bracket, and a spring rod is provided between the crossbeam and the soil pressing bracket.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The soil distribution box structure in this invention allows the rotary tillage device to guide the soil through the first guide plate and throw it into multiple soil inlets of the soil distribution box, and discharge it from multiple soil outlets accordingly. This ensures that the soil is pressed more comprehensively onto the top surface of the mulch film to form a uniform soil ridge, resulting in stable operation and avoiding the problem of weeds growing in the soil extraction ditch caused by side soil extraction.
[0012] A portion of the soil is reserved using a soil storage plate. At the beginning of the next sowing zone, the soil storage plate is flipped over by an electric push rod, and the reserved soil on the surface of the soil storage plate is unloaded from the soil outlet of the soil distribution box, forming a strip-shaped soil film, which evenly presses down the mulch film to prevent it from being dragged.
[0013] Therefore, this utility model has the characteristics of uniform and comprehensive soil compaction. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the soil distribution box; Figure 3 This is a schematic diagram of the soil storage slab structure.
[0015] The markings in the attached diagram are as follows: 41, soil distribution box; 42, soil inlet; 421, first guide plate; 43, second guide plate; 44, soil outlet; 45, outer cover; 46, soil storage plate; 47, electric push rod; 48, soil pressing wheel; 481, soil pressing support. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0018] Example: like Figures 1-3As shown, a soil covering device for a rice dry direct seeding machine includes a soil distribution box 41. The upper side of the soil distribution box 41 is evenly provided with multiple soil inlets 42. The upper edge of the soil inlet 42 is provided with an inclined first soil guide plate 421. The lower edge of the soil inlet 42 is provided with a soil outlet 44 formed by multiple inclined second soil guide plates 43, which corresponds to the soil inlet 42 and can accurately guide the soil in and out.
[0019] When the rotary tillage device is working, some soil is guided by the first soil guide plate 421 and thrown into the multiple soil inlets 42 of the soil distribution box, and discharged from the multiple soil outlets 44. It is pressed more comprehensively onto the top surface of the mulch film to form a uniform soil ridge. The operation is stable and avoids the problem of weeds growing in the soil extraction ditch caused by side soil extraction.
[0020] The soil distribution box 41 is provided with an outer cover 45, which includes an upper outer cover and a side outer cover to prevent the soil generated by the rotary tillage device from flying out and to ensure that it accurately enters the soil distribution box 41.
[0021] A soil storage plate 46, located above the soil inlet 42 of the soil distribution box 41, is rotatably connected to the side outer cover via a rotating shaft. The soil storage plate 46 is elongated, and an electric push rod 47 is provided above the soil storage plate 46 to drive it to rotate. The electric push rod 47 is mounted on the upper outer cover, and its drive shaft is connected to the free side of the soil storage plate 46, driving the soil storage plate 46 to rotate around the rotating shaft.
[0022] When the dry direct seeding machine is working and moving, the soil storage plate 46 is in a horizontal state. When the rotary tillage device is working, some of the soil thrown behind will remain on the soil storage plate 46. At the beginning of the next seeding zone, after the mulch film is laid, before the machine moves, the soil storage plate 46 is flipped by the electric push rod 47. The soil reserved on the surface of the soil storage plate 46 is unloaded from the soil outlet 44 of the soil distribution box 41 and falls onto the mulch film, thereby pressing the mulch film to prevent it from being dragged and forming strip-shaped soil film, which is uniform and consistent.
[0023] It also includes a soil-pressing wheel 48 located behind the soil distribution box 41. The soil-pressing wheel 48 is installed at both ends of the crossbeam of the sowing device via a soil-pressing bracket 481. A spring rod (not shown in the figure) is provided between the crossbeam and the soil-pressing bracket 481. The spring rod causes the soil-pressing wheel 48 to exert a certain pressure on the soil on the film and the edge of the film, compacting and flattening the edge of the film, thus solving the problem of the soil not being compacted at the edge of the film and being easily blown away by the wind.
[0024] The parts of this utility model not described in detail are existing technologies.
Claims
1. A soil covering device for a dry-seeding rice machine, characterized in that: The system includes a soil distribution box (41), with multiple soil inlets (42) evenly distributed on the upper side of the soil distribution box (41). An inclined first soil guide plate (421) is provided on the upper edge of the soil inlet (42). A soil outlet (44) corresponding to the soil inlet (42) is provided on the lower edge of the soil inlet (42) by multiple inclined second soil guide plates (43). A soil storage plate (46) is rotatably connected above the soil inlet (42), and an electric push rod (47) for driving the soil storage plate (46) to flip is connected on the soil storage plate (46).
2. The soil covering device for a dry-seeding rice machine according to claim 1, characterized in that: The soil distribution box (41) is provided with an outer cover (45).
3. The soil covering device for a dry-seeding rice machine according to claim 1, characterized in that: The diameter of the soil inlet (42) is larger than the diameter of the soil outlet (44).
4. The soil covering device for a dry-seeding rice machine according to claim 1, characterized in that: The soil storage board (46) is long and narrow.
5. The soil covering device for a dry-seeding rice machine according to claim 1, characterized in that: It also includes a soil pressing wheel (48) located behind the soil distribution box (41). The soil pressing wheel (48) is installed at both ends of the crossbeam of the sowing device via a soil pressing bracket (481). A spring rod is provided between the crossbeam and the soil pressing bracket (481).