Adjustable flat plate suction hole seed disc device based on air suction

Abstract

The utility model discloses an adjustable flat plate suction hole seed tray device based on air suction, and relates to the technical field of rice seedling raising, the adjustable flat plate suction hole seed tray device comprises a shell with a bottom opening, an inner cavity of the shell is sequentially provided with a sealing plate and a moving plate from bottom to top, the bottom of the sealing plate and the bottom of the shell are on the same plane, and the top of the sealing plate is in sliding contact with the moving plate; a plurality of sets of protruding type air hole structures are arranged on the sealing plate in a rectangular array mode, each set of protruding type air hole structure is composed of at least four suction hole assemblies, and a plurality of through holes matched with the suction hole assemblies are formed in the movable plate. The adjusting mechanism drives the moving plate to move and enables the through holes to coincide with the suction hole assemblies, conventional rice seeding can be completed, after the adjusting mechanism drives the moving plate to move towards the other side, the coincident number of the through holes and the suction hole assemblies is dynamically adjusted, and hybrid rice or special rice seed seeding can be completed. Therefore, precision seeding is realized, the utilization rate of seeds is improved, and high quality and high yield of seedlings are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rice seed seedling raising technology field, concretely relates to a kind of adjustable flat plate suction hole seed tray device based on air suction type. BACKGROUND

[0002] Seedling raising is the key link in the process of rice cultivation, which refers to cultivating seedlings to the appropriate transplanting stage in a specific environment controlled by humans. By centralized seedling raising, seedlings can be cultivated to the 3-4 leaf stage (such as hybrid rice, conventional rice seedling age is usually controlled at 20-25 days) before transplanting. This method not only significantly reduces the risk of diseases and pests in the field, but also improves yield by promoting tillering and increasing effective panicle number. Through precise control of temperature, humidity and light conditions during the seedling raising stage, low-temperature cold damage or high-temperature burn can be effectively avoided, promoting root development and healthy growth of seedlings, laying a foundation for subsequent high yield. With the development of agricultural modernization and intelligentization, seedling raising technology continues to upgrade. Currently, seedling raising machines, suction hole seed tray devices and standardized seedling trays are commonly used in the seedling raising process to achieve efficient and accurate seeding.

[0003] However, due to the differences in seeding requirements for different types of rice seeds, traditional air suction type suction hole seed tray devices have limitations. Hybrid rice usually seeds 1-2 seeds per seedling tray hole, while conventional rice needs to seed 4-6 seeds per hole. Although traditional devices can place rice seeds into the holes through air suction, the number of seeds absorbed cannot be adjusted according to the type of rice seeds, making it difficult to accurately match the seeding amount with the demand for rice seeds. This not only causes waste of seeds, but also leads to problems such as seedling overgrowth and poor root development due to high seeding density, thereby affecting the quality of seedling raising. SUMMARY

[0004] The utility model provides a kind of adjustable flat plate suction hole seed tray device based on air suction type to solve the problems raised in the above background art, to improve the utilization rate of seeds, reduce waste, realize precision seeding, and improve the high-quality and high-yield of seedlings.

[0005] To solve the above technical problems, the utility model employs the following technical solutions:

[0006] A kind of adjustable flat plate suction hole seed tray device based on air suction type, including the shell of bottom opening, the inner chamber of the shell is sequentially provided with sealing plate and moving plate from bottom to top, the bottom of the sealing plate is in the same plane with the bottom of shell, and the top of the sealing plate is in sliding contact with the moving plate, there are several groups of convex air hole structures in rectangular array on the sealing plate, each group of the convex air hole structure includes by not less than four suction hole components, a plurality of through holes matched with suction hole components are formed on the moving plate;

[0007] The one end of the moving plate and the inner wall of the shell form a clearance, the two sides of the moving plate are respectively arranged close to the inner wall of the shell, and the adjusting mechanism with a limiting function is arranged on the moving plate.

[0008] The top of the shell is provided with at least one mounting hole, the mounting hole is connected with the external air pump through a pipeline, the inner wall of the shell is respectively provided with symmetrically arranged air-tight baffles, the end of the moving plate is respectively located between the air-tight baffles, and the top of the sealing plate is respectively provided with a clearance groove.

[0009] The further improvement of the technical scheme of the utility model lies in that: the air hole assembly comprises a gas permeable hole arranged on the sealing plate, the gas permeable hole is coincided with the through hole, the gas permeable hole is respectively provided with a conical protrusion with a hollow structure below, the conical protrusion is connected with the sealing plate, and the inner cavity of the conical protrusion is also conical, the top of the inner cavity of the conical protrusion is coincided with the gas permeable hole, and the diameter of the top of the inner cavity of the conical protrusion is greater than the diameter of the bottom of the inner cavity of the conical protrusion.

[0010] The further improvement of the technical scheme of the utility model lies in that: the adjusting mechanism comprises symmetrically arranged T-shaped rods, the T-shaped rods are respectively slidably arranged on one side of the shell and one end of the T-shaped rod is connected with the moving plate, springs are respectively sleeved on the T-shaped rods, one end of the spring is in contact with the inner wall of the shell, the other end of the spring is in contact with the moving plate, a threaded rod is connected on one side of the moving plate, one end of the threaded rod extends to the outside of the shell and is slidably connected with the shell, a butterfly nut is threadedly connected on the threaded rod, the butterfly nut is located on the outside of the shell, and the surface of the threaded rod is provided with at least one color mark.

[0011] The further improvement of the technical scheme of the utility model lies in that: the two sides of the moving plate are respectively provided with sliding grooves, sliding blocks are slidably connected in the sliding grooves, and the sliding blocks are installed on the shell and the two ends of the sliding blocks are respectively connected with the inner wall of the shell.

[0012] The further improvement of the technical scheme of the utility model lies in that: the inner cavity of the conical protrusion is circular in horizontal section.

[0013] The further improvement of the technical scheme of the utility model lies in that: the outer surface of the conical protrusion is one of petal shape, circle and polygon in horizontal section.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] 1. The utility model provides a kind of adjustable flat plate suction hole seed disc device based on air suction type, mobile plate is driven to move by adjusting mechanism and make through hole and suction hole assembly coincide, it can complete conventional rice seeding, and after mobile plate is driven to move to another side by adjusting mechanism again, the coincidence quantity of through hole and suction hole assembly is adjusted dynamically, it can complete the seeding of hybrid rice or special rice seed, to realize precision seeding, and improve the utilization of seed, to reach the high quality and high yield of seedling.

[0016] 2. The utility model provides a kind of adjustable flat plate suction hole seed disc device based on air suction type, by rotating butterfly nut to corresponding color mark position, the number of suction hole assembly participating in work is accurately adjusted, realizes precision seeding, this precision seeding mode avoids the situation that seedling is too dense or too sparse occurs, finally realizes the improvement of rice yield, brings remarkable economic benefits for agricultural production. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural diagram of the utility model;

[0018] Figure 2 It is the isometric view of the utility model;

[0019] Figure 3 It is the explosion drawing of the utility model;

[0020] Figure 4 It is the partial sectional view of the utility model;

[0021] Figure 5 It is the structural diagram of suction hole assembly of the utility model.

[0022] In the drawing: 1, shell;2, sealing plate;3, mobile plate;40, suction hole assembly;5, through hole;60, adjusting mechanism;7, mounting hole;8, gas-tight baffle;9, let-position slot;11, sliding slot;12, sliding block;

[0023] 41, air hole;42, conical protrusion;

[0024] 61, T-shaped rod;62, spring;63, threaded rod;64, butterfly nut;65, color mark. DETAILED DESCRIPTION

[0025] The utility model is further explained in detail as follows by combining with embodiment:

[0026] For example, Figures 1-5The utility model provides a kind of adjustable flat plate suction hole seed disc device based on gas suction, including the bottom opening shell 1, the inner chamber of shell 1 is sequentially provided with sealing plate 2 and moving plate 3 from below to above, the bottom of sealing plate 2 is with the bottom of shell 1 in the same plane, and the top of sealing plate 2 and moving plate 3 sliding contact, there are several groups of convex air hole structure on sealing plate 2 rectangular array, each group of convex air hole structure includes by not less than four suction hole components 40, moving plate 3 is provided with several through holes 5 matched with suction hole component 40, sliding groove 11 is respectively set on the both sides of moving plate 3, sliding block 12 is slidably connected in sliding groove 11, sliding block 12 is installed on shell 1 and its both ends are respectively connected with the inner wall of shell 1, and the clearance is formed between the one end of moving plate 3 and the inner wall of shell 1, the both sides of moving plate 3 are respectively close to the inner wall of shell 1, further including the adjusting mechanism 60 with the limiting function being set on moving plate 3, adjusting mechanism 60 is suitable for driving moving plate 3 to move to one side and makes through hole 5 and corresponding suction hole component 40 coincide, after adjusting mechanism 60 drives moving plate 3 to move to the other side, every group of convex air hole structure has at least two suction hole components 40 and corresponding through hole 5 coincides, the top of shell 1 is provided with not less than one mounting hole 7, mounting hole 7 is connected with external suction pump by pipeline, the both sides of the inner wall of shell 1 are respectively provided with symmetrically arranged air-tight baffle 8, the end of moving plate 3 is respectively located between air-tight baffle 8, the top of sealing plate 2 is respectively provided with clearance slot 9, and bottom air-tight baffle 8 is located in clearance slot 9 respectively.

[0027] Further, during the process of adsorbing rice seeds by the device, the installation hole 7 is connected with the external air pump through the pipeline to realize the generation of negative pressure environment in the shell 1, and the design of the gap slot 9 provides installation space for the bottom air-tight baffle 8, avoiding interference with the top of the sealing plate 2, thereby reducing the risk of air leakage and optimizing the space utilization rate. Under the dynamic sealing action of the air-tight baffle 8, the air leakage in the empty part between the moving plate 3 and the inner wall of the shell 1 during the sliding process is effectively inhibited, ensuring the sealing of the negative pressure air path, reducing the negative pressure loss, and further ensuring the working stability of the suction hole assembly 40 during the adsorption of rice seeds. At the same time, each group of convex air hole structure is composed of not less than four suction hole assemblies 40, which are arranged in a rectangular array, and preferably four, to adapt to the seeding needs of different rice seeds; for example, hybrid rice needs to be seeded 1-2 seeds per hole, while conventional rice needs to be seeded 4-6 seeds per hole. The device can flexibly adjust the seeding amount according to the type of rice seeds to prevent seed waste. During the process of dynamically adjusting the seeding amount, the moving plate 3 adjusts the number of overlapping suction hole assemblies 40 through the sliding adjustment through hole 5 to accurately control the seeding amount in each seedling tray hole, avoiding too dense or too sparse seedlings. The layout of the through hole 5 strictly matches the rectangular array of the suction hole assembly 40, ensuring the continuity and stability of the adjustment process. Specifically, the adjustment mechanism 60 drives the moving plate 3 to slide to one side or the other side to dynamically adjust the number of overlapping through holes 5 and suction hole assemblies 40 to adapt to the seeding needs of different rice seeds, not only improving the utilization rate of seeds, but also achieving precision seeding, laying a foundation for high-quality and high-yield seedlings. In addition, the cooperation design of the sliding groove 11 and the sliding block 12 ensures the stable sliding of the moving plate 3 in the shell 1, reduces the friction resistance, and further improves the adjustment accuracy. This structure design makes the device more stable and reliable during operation, providing a strong guarantee for efficient seedling raising.

[0028] As shown in Figure 1 and Figures 3-5 ,

[0029] The suction hole assembly 40 includes a gas permeable hole 41 opened in the sealing plate 2, the gas permeable hole 41 overlaps with the through hole 5, and the gas permeable hole 41 is provided below with a hollow structure. The conical protrusion 42 is connected with the sealing plate 2, and the inner cavity of the conical protrusion 42 is also conical. The top of the inner cavity of the conical protrusion 42 overlaps with the gas permeable hole 41, and the diameter of the top of the inner cavity of the conical protrusion 42 is greater than the diameter of the bottom of the inner cavity of the conical protrusion 42. The horizontal cross section of the inner cavity of the conical protrusion 42 is circular, and the horizontal cross section of the outer surface of the conical protrusion 42 is one of petal shape, circular and polygonal.

[0030] Furthermore, the vent 41 serves as an air passage, allowing the negative pressure generated by the external air pump to be transmitted to the inner cavity of the conical protrusion 42, thereby achieving seed adsorption. When the vent 41 coincides with the through hole 5, the connectivity of the air system is ensured. When the air pump operates, the negative pressure can be transmitted through the vent 41 to the inner cavity of the conical protrusion 42, providing power for seed adsorption and enabling precise control of the sowing amount. The hollow design of the conical protrusion 42 allows its inner cavity to form a negative pressure area, directly contacting the rice seeds and generating adsorption force, firmly adsorbing the rice seeds to the bottom of the conical protrusion 42. The inner cavity of the conical protrusion 42 is also conical, with the diameter at the top being larger than the diameter at the bottom, creating a larger negative pressure area at the top for more effective seed adsorption. At the bottom, the diameter gradually decreases, helping to accurately position the adsorbed rice seeds into the seedling tray holes, preventing seed displacement or falling during adsorption and improving efficiency. To ensure accurate sowing, the circular horizontal cross-section of the inner cavity of the conical protrusion 42 guarantees a uniform distribution of negative pressure in all directions. This makes the adsorption force on the rice seed more balanced during the adsorption process, reducing the likelihood of the rice seed tilting or unstable adsorption due to uneven adsorption force, and lowering the probability of the rice seed getting stuck in its inner cavity. At the same time, the petal-shaped outer surface of the conical protrusion 42 increases the contact area between the conical protrusion 42 and the rice seed, improving the stability and firmness of adsorption. The circular outer surface is relatively easy to manufacture, and its smooth surface can reduce damage to the rice seed while ensuring the smoothness of the rice seed during adsorption and release. The polygonal outer surface of the conical protrusion 42 provides more adsorption contact points, increasing the friction between the conical protrusion and the rice seed, thereby improving the reliability of adsorption. The polygonal design with different numbers of sides can be adjusted according to actual needs to adapt to different rice seed shapes and sizes, further optimizing the sowing effect.

[0031] like Figures 1-5 As shown,

[0032] The adjustment mechanism 60 includes symmetrically arranged T-shaped rods 61, which are slidably inserted through one side of the housing 1 and connected at one end to the movable plate 3. Springs 62 are respectively fitted on the T-shaped rods 61, with one end of the springs 62 contacting the inner wall of the housing 1 and the other end contacting the movable plate 3. The mechanism also includes a threaded rod 63 connected to one side of the movable plate 3, with one end of the threaded rod 63 extending to the outside of the housing 1 and slidably connected thereto. A wing nut 64 is threaded onto the threaded rod 63, which is located on the outside of the housing 1. The surface of the threaded rod 63 is provided with at least one colored mark 65.

[0033] Further, in the sliding process, the spring 62 drives one end of the moving plate 3 to contact the inner wall of the shell 1 by its own elastic force, and forms a gap at the other end, at the same time, the through hole 5 is completely coincided with the air hole 41, and at the same time, the end of the butterfly nut 64 is in contact with the surface of the shell 1 and rotates continuously, the moving plate 3 is gradually pulled by the threaded rod 63 to move as a whole, which promotes the through hole 5 to cross and misplace the air hole 41, and at least two suction hole assemblies 40 in each group of protruding air hole structure are coincided with the corresponding through hole 5, so as to adapt to different seeding modes and realize precision seeding, and improve the quality and yield of seedlings. In addition, if each group of protruding air hole structure is composed of more than four suction hole assemblies 40, the butterfly nut 64 is rotated to the position of the corresponding color mark 65 to adjust the number of coincidences of the corresponding hole position. It is to be explained that the corresponding position of the color mark 65 is set according to the rice seeding requirements in advance.

[0034] The working principle of the adjustable flat plate suction hole seed disc device based on air suction will be described below.

[0035] As shown in Figures 1-5 When it is needed to adsorb conventional rice seeds, the operator rotates the butterfly nut 64 to gradually move away from the surface of the shell, and in this process, the butterfly nut 64 does not need to be in contact with the surface of the shell. At this time, the spring 62 sleeved on the T-shaped rod 61 pushes the moving plate 3 to slide along the T-shaped rod 61 by its own elastic force, until one end of the moving plate 3 is in close contact with the inner wall of the shell 1, so that the through hole 5 on the moving plate 3 is completely coincided with the air hole 41 on the sealing plate 2. At the same time, the external air pump is reliably connected with the mounting hole 7 on the shell 1 through the pipeline, and after the air pump is started, a negative pressure environment is formed in the shell 1. The negative pressure is transmitted to the inner cavity of the conical protrusion 42 through the completely coincided through hole 5 and air hole 41. Since the inner cavity of the conical protrusion 42 is coincided with the air hole 41 at the top, and the diameter of the top is larger than that of the bottom, the conical structure forms a larger negative pressure area at the top of the inner cavity, which can effectively adsorb conventional rice seeds. After the rice seeds are adsorbed, the device is moved above the seedling tray, so that the conical protrusion 42 with the adsorbed rice seeds is aligned with the hole position of the seedling tray, then the operation of the air pump is stopped, the negative pressure environment in the shell 1 disappears, the inner cavity of the conical protrusion 42 no longer maintains negative pressure, and the rice seeds adsorbed on the conical protrusion 42 fall into the hole of the seedling tray under the action of their own gravity, completing the seeding of the seedling tray, realizing precision seeding, and reducing the waste of rice seeds;

[0036] If the hybrid rice seeds need to be adsorbed, the operator rotates the butterfly nut 64, and rotates it to the position of the corresponding color mark 65 on the shell 1, which is set in advance according to the sowing demand of hybrid rice seeds. When the butterfly nut 64 is rotated to this position, the moving plate 3 will slide along the T-shaped rod 61 under the driving of the threaded rod 63, so that only two suction hole assemblies 40 in each group of protruding air hole structures are in working condition, that is, the corresponding air holes 41 are coincided with the through holes 5, and the remaining suction hole assemblies 40 are blocked by the moving plate 3 and cannot form an effective negative pressure adsorption channel. At this time, the external air pump is also connected with the mounting hole 7 through the pipeline, so that a negative pressure environment is formed in the shell 1, and the negative pressure is only transmitted to the inner cavity of the corresponding conical protrusion 42 through the two suction hole assemblies 40 in working condition, so that the hybrid rice seeds are adsorbed. The subsequent operation and sowing of rice seeds are the same as the conventional sowing of rice seeds. The device is moved above the seedling tray through the seedling sowing machine, the conical protrusion 42 adsorbed with the rice seeds is aligned with the hole position of the seedling tray, the air pump is stopped, and the rice seeds fall into the hole of the seedling tray under the action of gravity, and the seedling sowing work is completed.

[0037] When special number of rice seeds for seedling are needed, the operator rotates the butterfly nut 64 to the position of the corresponding number of hole marks 65 on the shell 1 according to the number of sowing hole objects needed. The color mark 65 is set in advance according to the demand of different sowing hole objects. When the butterfly nut 64 is rotated to the corresponding position, the moving plate 3 will slide along the T-shaped rod 61 under the driving of the threaded rod 63, so that a specific number of suction hole assemblies 40 are in working condition, that is, the corresponding air holes 41 are coincided with the through holes 5, and the remaining suction hole assemblies 40 are blocked by the moving plate 3. The external air pump is connected with the mounting hole 7 through the pipeline, so that a negative pressure environment is formed in the shell 1, and the negative pressure is transmitted to the inner cavity of the corresponding conical protrusion 42 through the suction hole assemblies 40 in working condition, so that a specific number of rice seeds are adsorbed. Subsequently, the device is moved above the seedling tray through the seedling sowing machine, the conical protrusion 42 adsorbed with the rice seeds is aligned with the hole position of the seedling tray, the air pump is stopped, and the rice seeds fall into the hole of the seedling tray under the action of gravity, and the seedling sowing work is completed.

[0038] The above is a detailed description of the general application, but some modifications or improvements can be made on the basis of the application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the application are within the protection scope of the application.

Claims

1. A suction-based adjustable flat-hole seed tray device, characterized by: The shell (1) includes a bottom opening, and the inner cavity of the shell (1) is sequentially provided with a sealing plate (2) and a moving plate (3) from bottom to top; the bottom of the sealing plate (2) is in the same plane as the bottom of the shell (1), and the top of the sealing plate (2) is in sliding contact with the moving plate (3); a plurality of groups of convex air hole structures are arranged in a rectangular array on the sealing plate (2), and each group of the convex air hole structures includes at least four suction hole assemblies (40); and a plurality of through holes (5) are formed in the moving plate (3) and matched with the suction hole assemblies (40). A gap is formed between one end of the moving plate (3) and the inner wall of the shell (1), and the two sides of the moving plate (3) are respectively arranged close to the inner wall of the shell (1); the adjusting mechanism (60) with a limiting function is arranged on the moving plate (3); the adjusting mechanism (60) is suitable for driving the moving plate (3) to move to one side and make the through holes (5) coincide with the corresponding suction hole assemblies (40); and after the adjusting mechanism (60) drives the moving plate (3) to move to the other side, at least two suction hole assemblies (40) of each group of the convex air hole structures coincide with the corresponding through holes (5). At least one mounting hole (7) is formed in the top of the shell (1), the mounting hole (7) is connected with an external air pump through a pipeline, the inner wall of the shell (1) is respectively provided with symmetrically arranged air-tight baffles (8), the ends of the moving plate (3) are respectively located between the air-tight baffles (8), and the top of the sealing plate (2) is respectively provided with a gap slot (9), and the air-tight baffles (8) are respectively located in the gap slots (9).

2. The adjustable flat suction hole seed tray device based on air suction according to claim 1, characterized in that: The suction hole assembly (40) includes a gas permeable hole (41) formed in the sealing plate (2), the gas permeable hole (41) coincides with the through hole (5), a conical protrusion (42) with a hollow structure is arranged below the gas permeable hole (41), the conical protrusion (42) is connected with the sealing plate (2), the inner cavity of the conical protrusion (42) is also conical, the top of the inner cavity of the conical protrusion (42) coincides with the gas permeable hole (41), and the diameter of the top of the inner cavity of the conical protrusion (42) is greater than the diameter of the bottom of the inner cavity of the conical protrusion (42).

3. The adjustable flat suction hole seed tray device based on air suction type according to claim 1, characterized in that: The adjusting mechanism (60) includes symmetrically arranged T-shaped rods (61), the T-shaped rods (61) are respectively slidably arranged in one side of the shell (1) and connected with the moving plate (3) at one end, springs (62) are respectively sleeved on the T-shaped rods (61), one end of each spring (62) is in contact with the inner wall of the shell (1), the other end of each spring (62) is in contact with the moving plate (3), a threaded rod (63) is connected to one side of the moving plate (3), one end of the threaded rod (63) extends to the outside of the shell (1) and is slidably connected with the shell (1), a butterfly nut (64) is threadedly connected with the threaded rod (63), the butterfly nut (64) is located on the outside of the shell (1), and at least one color mark (65) is arranged on the surface of the threaded rod (63).

4. The adjustable flat suction hole seed tray device based on air suction type according to claim 1, characterized in that: Two sides of the mobile plate (3) are respectively provided with a sliding groove (11), the sliding groove (11) is slidably connected with a sliding block (12), the sliding block (12) is installed on the shell (1) and both ends thereof are respectively connected with the inner wall of the shell (1).

5. The adjustable flat suction hole seed tray device based on air suction type according to claim 2, characterized in that: The horizontal section of the inner cavity of the conical protrusion (42) is circular.

6. The adjustable flat suction hole seed tray device based on air suction type according to claim 2, characterized in that: The horizontal section of the outer surface of the conical protrusion (42) is one of petal shape, circle and polygon.

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