A push-pull type tobacco seedling sowing device used in cooperation with a seedling tray and its usage method

Abstract

The present invention discloses a push-pull type tobacco seedling sowing device for use with a seedling tray; belonging to the technical field of tobacco seedling breeding devices, it includes a square box body with an open top; a plurality of falling through holes are opened on the bottom plate of the box body; strip-shaped holes with sizes matching the cross-sectional dimensions of the bottom plate are opened at relative positions on the front and rear side end faces of the box body; both ends of the bottom plate pass through the strip-shaped holes and are arranged, and the bottom plate is movably installed on the box body through the strip-shaped holes; a plurality of partition blocks are further arranged in the inner cavity of the box body; the partition blocks are arranged along the width direction of the box body, and the lower bottom of the partition blocks is attached to the bottom plate; guide grooves are opened on the front side end faces of all the partition blocks, the length of the guide grooves is less than the length of the partition blocks, and movable through holes communicating with the guide grooves are vertically opened along the partition blocks; a push rod assembly is movably installed on the partition blocks through the movable through holes; a sliding head cooperating with the push rod assembly is further arranged on the bottom plate.

Description

Technical Field

[0001] The present invention relates to a tobacco seedling breeding device and a method for using the same, and more particularly to a push-pull type tobacco seedling sowing device for use with a seedling tray and a method for using the same. Background Art

[0002] In the process of tobacco cultivation, since most breeding is carried out using floating seedling trays, and currently the sowing of tobacco seedlings is manually performed by manual operation. This requires staff to manually place tobacco seedling seeds one by one into the grid-shaped seedling trays. Obviously, this sowing method is inefficient and prone to the situation of missing or over-sowing tobacco seeds on the grid of the seedling trays. To address this problem, although there are currently disk-shaped sowing devices with sieve holes having a size similar to the mesh size of the seedling trays, during specific operations, it is impossible to ensure their accurate cooperation with the seedling trays. Although the difficulty of manual operation is reduced to a certain extent, the problems of missing and over-sowing tobacco seeds are more obvious, which are the technical problems that need to be solved currently. In addition, the above-mentioned sieve tray device with sieve holes also has the following problems: 1. It is not easy to change the size of the corresponding sieve holes on the sieve tray to adapt to the sowing operations of different seeds; 2. The stability of directly using the sieve tray is poor; 3. It is difficult to control the size of the specific movement of the sieve tray so that the seeds can accurately pass through the sieve holes and fall into the seedling trays, etc. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a push-pull type tobacco seedling sowing device for use with a seedling tray and a method for using the same, so as to solve the problems of low operation efficiency and prominent situations of missing and over-sowing tobacco seeds during the process of sowing tobacco seedlings into the seedling trays.

[0004] To solve the above problems, the present invention provides the following technical solutions:

[0005] A push-pull type tobacco seedling sowing device for use with a seedling tray, which comprises a square box body with an open top; a plurality of falling through holes are formed in the bottom plate of the box body; strip-shaped holes with a size matching the cross-sectional size of the bottom plate are formed at opposite positions on the front and rear side end faces of the box body; both ends of the bottom plate pass through the strip-shaped holes and are arranged thereon, and the bottom plate is movably installed on the box body through the strip-shaped holes; a plurality of partition blocks are further arranged in the inner cavity of the box body; the partition blocks are arranged along the width direction of the box body, and the lower bottom of the partition blocks is in contact with the bottom plate; guiding grooves are formed on the front side end faces of all the partition blocks, the length of the guiding grooves is less than the length of the partition blocks, and movable through holes communicating with the guiding grooves are formed vertically along the partition blocks; a push rod assembly is movably installed on the partition blocks through the movable through holes; a sliding head cooperating with the push rod assembly is further arranged on the bottom plate.

[0006] Preferably, vertical slots matching the left and right end dimensions of the partition block are provided on the inner cavity of the box body; the partition block is installed in the box body through the vertical slots.

[0007] Furthermore, threaded holes are provided at the positions of the left and right side walls of the box body and the corresponding end portions of the partition block, and the partition block and the box body are connected by screws.

[0008] Furthermore, the cross-section of the notch of the vertical slot and the side end of the partition block are of a T-shaped structure with opposite sizes.

[0009] Preferably, limiting clamping plates are respectively provided at the front and rear end sides of the bottom plate; and the moving distance of the bottom plate through the strip-shaped hole does not exceed the distance between two adjacent rows of partition blocks.

[0010] Furthermore, among the two extreme positions where the bottom plate moves back and forth along the strip-shaped hole, when the bottom plate is at one of the extreme positions, the falling through-hole is arranged directly opposite the movable through-hole of the partition block, and when at the other extreme position, the falling through-hole is located below the partition block and is not communicated with the guiding groove.

[0011] Preferably, the guiding groove is a curved surface structure of a semi-cone surface, and the end with a larger groove diameter on the guiding groove is the opening side.

[0012] Preferably, the push rod assembly includes a movable rod inserted into the movable through-hole. The total length of the movable rod is not less than the sum of the length of the movable through-hole and the thickness of the bottom plate. A pressure-bearing head matched with the sliding head is fixed at the end side of the movable rod outside the movable through-hole; a deformable elastic gasket is also arranged between the pressure-bearing head and the partition block.

[0013] Preferably, a plurality of bottom beams are further provided along the width direction of the lower bottom of the box body.

[0014] The present application also provides a use method of a push-pull type tobacco seedling seeding device for use with a seedling tray, including the following steps:

[0015] S1. Assemble the whole device and confirm that the connections of all parts are reliable;

[0016] S2. Transfer the box body so that the bottom beam is placed on the top of the seedling tray;

[0017] S3. Push the bottom plate along the strip-shaped hole to an extreme position. When the bottom plate is at this extreme position, the falling through-hole is blocked by the partition block;

[0018] S4. Put tobacco seedling seeds into each area of the box body divided by the partition block;

[0019] S5. Push the bottom plate along the strip-shaped hole to the other extreme position opposite to the extreme position in step S3. At this time, the falling through-hole on the bottom plate is aligned with the movable through-hole, and the tobacco seedling seeds will slide along the guiding groove to the position of the movable through-hole. At the same time, the sliding head on the bottom plate will squeeze the pressure-bearing head and drive the movable rod to move downward to push the tobacco seedling seeds out along the falling through-hole.

[0020] S6. Then push the bottom plate to the extreme position in step S3 to reset the device, realizing an operation of putting seeds into the seedling tray once.

[0021] S7. Replace the seedling tray and repeat steps S5 and S6 to complete the continuous seed putting for multiple seedling trays.

[0022] Advantages of the present invention:

[0023] The present invention designs a new type of tobacco seed putting device for the existing seedling tray. It uses a box body with a movable bottom plate to directly cover the seedling tray, and several partition blocks are arranged in the box body to divide the inner cavity of the box body into strip-shaped small areas to place tobacco seedling seeds. The guiding grooves on the partition blocks are used to guide the tobacco seeds into the bottom of the partition blocks to align with the movable through-holes, so that the movable head on the bottom plate can cooperate with the push rod assembly on the partition block to move, and the push rod assembly will push the tobacco seeds down along the falling through-hole during the up and down sliding process to fall into the seedling tray below the box body. It can complete the effective seed putting for one side of the seedling tray through a simple operation of pulling and pushing the bottom plate. Compared with manual operation, it greatly improves the operation efficiency, and at the same time ensures that the number of seeds put into the grid of the seedling tray in one operation is exactly one. In addition, the present invention also has the following advantages:

[0024] 1. The partition block and the box body can be disassembled and assembled, allowing the partition blocks with different guiding groove and movable through-hole sizes to be adjusted according to the variety and size of different seeds, greatly improving the applicability of the device.

[0025] 2. Based on the detachable connection between the partition block and the box body, using threads to fix the two can prevent relative displacement between the partition block and the box body during the operation.

[0026] 3. The vertical slot and partition block with a T-shaped structure can play a good role in guiding installation.

[0027] 4. The setting of the limit clamping plate helps to effectively limit the movement of the bottom plate, facilitating the position control by using the two extreme positions before and after during the operation of the staff, reducing the labor intensity.

[0028] 5. The guiding groove with a gradually shrinking diameter can prevent too many seeds from getting stuck at the position of the movable through-hole and damaging the seeds when the push rod assembly moves.

[0029] 6. Further limits a push rod assembly with an elastic recovery structure, which can conveniently and effectively achieve the effect of extruding seeds along the falling through hole;

[0030] 7. The bottom beam can be used as a spacer between the box body and the lower seedling tray to facilitate the staff to pick up and place. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of the inventive device in this embodiment;

[0032] Figure 2 is a schematic structural diagram of the bottom plate with a sliding head in this embodiment;

[0033] Figure 3 is a schematic structural diagram of the partition block in this embodiment;

[0034] Figure 4 is Figure 3 the sectional view taken along the line A-A in

[0035] Figure 5 is Figure 3 the schematic view after installing the push rod assembly in

[0036] Figure 6 is a partial cross-sectional view of the bottom plate and the partition block when the bottom plate is in one extreme position in this embodiment;

[0037] Figure 7 is a partial cross-sectional view of the bottom plate and the partition block when the bottom plate is in another extreme position in this embodiment;

[0038] Figure 8 is a schematic structural diagram of the box body after the bottom plate is separated from the box body in this embodiment;

[0039] Description of the reference numerals: 1. Box body, 1A. Strip-shaped hole, 1B. Vertical slot, 2. Bottom plate, 2A. Falling through hole, 2B. Limit clamping plate, 3. Partition block, 3A. Guide groove, 3B. Moving through hole, 4. Push rod assembly, 4A. Moving rod, 4B. Pressure head, 4C. Elastic gasket, 5. Bottom beam, 6. Sliding head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The present invention will be further introduced below with reference to the accompanying drawings and specific embodiments:

[0041] Embodiment:

[0042] Refer to Figures 1 to 8, this embodiment provides a push-pull type tobacco seedling seeding device for use with a seedling tray, which includes a square box body 1 with an open top; 20 dropping through holes 2A are opened on the bottom plate 2 of the box body 1; strip-shaped holes 1A with sizes matching the cross-sectional dimensions of the bottom plate 2 are opened at opposite positions on the front and rear side end faces of the box body 1; both ends of the bottom plate 2 pass through the strip-shaped holes 1A and are arranged, and the bottom plate 2 is movably installed on the box body 1 through the strip-shaped holes 1A; 4 partition blocks 3 are further arranged in the inner cavity of the box body 1; the partition blocks 3 are arranged along the width direction of the box body 1, and the lower bottom of the partition blocks 3 is attached to the bottom plate 2; guiding grooves 3A are opened on the front side end faces of all the partition blocks 3, the length of the guiding grooves 3A is less than the length of the partition blocks 3, and movable through holes 3B communicating with the guiding grooves 3A are vertically opened along the partition blocks 3; a push rod assembly 4 is movably installed on the partition blocks 3 through the movable through holes 3B; a sliding head 6 cooperating with the push rod assembly 4 is further arranged on the bottom plate 2.

[0043] for reference Figure 1 and Figure 8 ; vertical slots 1B matching the left and right end dimensions of the partition blocks 3 are arranged on the inner cavity of the box body 1; the partition blocks 3 are installed in the box body 1 through the vertical slots 1B. Threaded holes are arranged at the left and right side walls of the box body 1 and at the end positions corresponding to the partition blocks 3, and the partition blocks 3 and the box body 1 are connected by screws. The cross-section of the slot opening of the vertical slot 1B and the side end of the partition block 3 are of a T-shaped structure with relatively equal sizes. In this embodiment, the width of the bottom plate 2 is greater than the width of the inner cavity of the box body 1, so a strip-shaped groove is further opened on the box body 1 along its length direction to assist the movement of the bottom plate 2. On the other hand, the setting of the vertical slots 1B and the threaded holes is to realize the detachable connection between the partition blocks 3 and the box body 1, so that partition blocks 3 of other sizes can be replaced on the box body to meet the seeding of different varieties of tobacco seedlings and improve the applicability of the device; and further limiting the cross-section of the slot opening of the vertical slot 1B and the side end structure of the partition block 3 to a T-shaped structure is to prevent the situation of inconvenient positioning and guiding of the partition block 3.

[0044] Limit cards 2B are respectively arranged on the front and rear end sides of the bottom plate 2; and the moving distance of the bottom plate 2 passing through the strip-shaped hole 1A does not exceed the distance between adjacent rows of partition blocks 3. Among the two extreme positions of the front and rear movement of the bottom plate 2 along the strip-shaped hole 1A, when the bottom plate 2 is in one of the extreme positions, the dropping through hole 2A is arranged directly opposite the movable through hole 3B of the partition block 3, and when in the other extreme position, the dropping through hole 2A is located below the partition block 3 and is not communicated with the guiding groove. In this embodiment, the structure between the bottom plate 2 and the limit card 2B at its rear side is detachable, and the above two extreme positions can be referred to Figure 6 and Figure 7 .

[0045] The guiding groove 3A has a curved surface structure of a semi-conical surface, and the end with a larger groove diameter on the guiding groove 3A is the opening side. Refer to Figure 3 and Figure 4 , in this embodiment, the guiding groove with a conical surface structure is used to adapt to the ellipsoidal seed structure, so that it can enter the bottom of the partition block 3.

[0046] The push rod assembly 4 includes a movable rod 4A inserted into the movable through hole 3B. The total length of the movable rod 4A is not less than the sum of the length of the movable through hole 3B and the thickness of the bottom plate 2. A pressure-bearing head 4B that cooperates with the sliding head 6 is fixed to the end side of the movable rod 4A outside the movable through hole 3B; a deformable elastic gasket 4C is also arranged between the pressure-bearing head 4B and the partition block 3. The structures of the mutually cooperating pressure-bearing head 4B and the sliding head 6 can be referred to Figure 2 、 Figure 6 and Figure 7 , and it uses an inclined surface to cooperate so that the sliding head gradually pushes the pressure-bearing head downward during the movement to complete the specified action; in this embodiment, the push rod assembly 4 used utilizes a deformable elastic gasket to return the push rod assembly to its original position, but it can be imagined that other similar structures that can meet this function should be within the scope protected by this application.

[0047] A plurality of bottom beams 5 are also arranged along the width direction of the lower bottom of the box body 1. In this embodiment, the lower bottom surfaces of the bottom beams 5 are all arranged on the same inclined surface; and when the box body 2 is installed on the bottom beams 5, the notch of the guiding groove 3A on the partition block 3 is arranged obliquely upward.

[0048] This application also provides a use method of a push-pull type tobacco seedling seeding device for use with a seedling tray, including the following steps:

[0049] S1. Assemble the entire device and confirm that the connections of all parts are reliable;

[0050] S2. Transfer the box body so that the bottom beam 7 is placed on the top of the seedling tray;

[0051] S3. Push the bottom plate 2 along the strip hole 1A to an extreme position. When the bottom plate 2 is at this extreme position, the falling through hole 2A is blocked by the partition block 3;

[0052] S4. Put tobacco seedling seeds into each area of the box body 1 divided by the partition block 3; the tobacco seedling seeds on the inclined bottom plate 2 will gather inside the guiding groove 3A under the action of gravity;

[0053] S5. Push the bottom plate 2 along the strip hole 1A to the other extreme position opposite to the extreme position in step S3. At this time, the falling through hole 2A on the bottom plate 2 is aligned with the movable through hole 3B, and the tobacco seedling seeds will slide along the guiding groove 3A to the position of the movable through hole 3B. At the same time, the sliding head 6 on the bottom plate 2 will squeeze the pressure-bearing head 4B and drive the movable rod 4A to move downward to push the tobacco seedling seeds out along the falling through hole 2A.

[0054] S6. Then push the bottom plate 2 to the extreme position in step S3 to reset the device, realizing an operation of putting seeds into the seedling tray once.

[0055] S7. Replace the seedling tray and repeat steps S5 and S6 to complete continuous seed putting for multiple seedling trays.

Claims

1. A push-pull type tobacco seedling sowing device used in cooperation with a seedling tray, which comprises a square box body (1) with an open top; a plurality of falling through holes (2A) are formed in the bottom plate (2) of the box body (1); It is characterized in that: Strip-shaped holes (1A) with sizes matching the cross-sectional dimensions of the bottom plate (2) are formed at opposite positions on the front and rear side end faces of the box body (1); both ends of the bottom plate (2) pass through the strip-shaped holes (1A) and are arranged, and the bottom plate (2) is movably installed on the box body (1) through the strip-shaped holes (1A); a plurality of partition blocks (3) are further arranged in the inner cavity of the box body (1); the partition blocks (3) are arranged along the width direction of the box body (1), and the lower bottom of the partition blocks (3) is attached to the bottom plate (2); guiding grooves (3A) are formed on the front side end faces of all the partition blocks (3), the length of the guiding grooves (3A) is less than the length of the partition blocks (3), and movable through holes (3B) communicating with the guiding grooves (3A) are vertically formed along the partition blocks (3); a push rod assembly (4) is movably installed on the partition blocks (3) through the movable through holes (3B); a sliding head (6) matching the push rod assembly (4) is further arranged on the bottom plate (2); the guiding groove (3A) is a curved surface structure of a semi-cone surface, and the end with a larger groove diameter on the guiding groove (3A) is the open side; the push rod assembly (4) includes a movable rod (4A) inserted into the movable through hole (3B), the total length of the movable rod (4A) is not less than the sum of the length of the movable through hole (3B) and the thickness of the bottom plate (2), and a pressure-bearing head (4B) matching the sliding head (6) is fixed to the end side of the movable rod (4A) outside the movable through hole (3B); a deformable elastic gasket (4C) is further arranged between the pressure-bearing head (4B) and the partition block (3); the opposite end faces of the sliding head (6) and the pressure-bearing head (4B) are inclined surface structures; the sliding head (6) and the pressure-bearing head (4B) can be matched by the inclined surfaces, so that the sliding head (6) gradually pushes the pressure-bearing head (4B) downward during the movement to complete the specified action.

2. A push-pull type tobacco seedling sowing device used in cooperation with a seedling tray according to claim 1, It is characterized in that: Vertical slots (1B) matching the left and right end dimensions of the partition blocks (3) are arranged in the inner cavity of the box body (1); the partition blocks (3) are installed in the box body (1) through the vertical slots (1B).

3. A push-pull type tobacco seedling sowing device used in cooperation with a seedling tray according to claim 2, It is characterized in that: Threaded holes are arranged on the left and right side walls of the box body (1) and at the end positions of the corresponding partition blocks (3), and the partition blocks (3) and the box body (1) are connected by screws.

4. A push-pull type tobacco seedling sowing device used in cooperation with a seedling tray according to claim 2, It is characterized in that: The cross-section of the slot opening of the vertical slot (1B) and the side end of the partition block (3) are of a T-shaped structure with relatively matching sizes.

5. A push-pull type tobacco seedling sowing device used in cooperation with a seedling tray according to claim 1, It is characterized in that: Limit clamping plates (2B) are respectively arranged on the front and rear end sides of the bottom plate (2); and the moving distance of the bottom plate (2) through the strip-shaped hole (1A) does not exceed the distance between two adjacent rows of partition blocks (3).

6. A push-pull type tobacco seedling seeding device used in cooperation with a seedling tray according to claim 5, characterized in that: Among the two extreme positions where the bottom plate (2) moves back and forth along the strip-shaped hole (1A), when the bottom plate (2) is in one of the extreme positions, the falling through hole (2A) is arranged opposite to the movable through hole (3B) of the partition block (3), and when in the other extreme position, the falling through hole (2A) is located below the partition block (3) and is not communicated with the guiding groove.

7. A push-pull type tobacco seedling seeding device used in cooperation with a seedling tray according to claim 1, characterized in that: A plurality of bottom beams (5) are further arranged on the lower bottom of the box body (1) along the width direction thereof.

8. A using method of a push-pull type tobacco seedling seeding device used in cooperation with a seedling tray according to any one of claims 1 to 7, characterized in that: It includes the following steps: S1. Assemble the whole device and confirm that the connections of all parts are reliable; S2. Move the box body so that the bottom beam (5) is placed on the top of the seedling tray; S3. Push the bottom plate (2) along the strip-shaped hole (1A) to an extreme position. When the bottom plate (2) is at this extreme position, the falling through hole (2A) is blocked by the partition block (3); S4. Put tobacco seedling seeds into each area of the box body (1) divided by the partition block (3); S5. Push the bottom plate (2) along the strip-shaped hole (1A) to another extreme position opposite to the extreme position in step S3. At this time, the falling through hole (2A) on the bottom plate (2) is opposite to the movable through hole (3B), and the tobacco seedling seeds will slide to the position of the movable through hole (3B) along the guiding groove (3A); at the same time, the sliding head (6) on the bottom plate (2) will squeeze the pressure-bearing head (4B) and drive the movable rod (4A) to move downward to push the tobacco seedling seeds out along the falling through hole (2A); S6. Push the bottom plate (2) to the extreme position in step S3 to reset the device, and realize an operation of seeding the seedling tray once; S7. Replace the seedling tray and repeat steps S5 and S6 to complete continuous seeding of multiple seedling trays.

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