Tomato plug seedling watering device

Abstract

The invention relates to a tomato plug seedling watering device which comprises a top plate, and a baffle is arranged on the lower surface of the top plate. The flow dividing pipe is connected with an external water source, a plurality of flow dividing openings are formed in the flow dividing pipe, the water outlet direction of the flow dividing openings vertically faces the seedling raising plate downwards, and the distance between the flow dividing openings is the same as the distance between the seedling raising holes in the seedling raising plate; except for the two flow dividing openings in the two ends of the flow dividing pipe, the other flow dividing openings correspond to the flow dividing mechanisms respectively; the driving part is connected with the flow dividing pipe; the driving part drives the flow dividing pipe to reciprocate once in the length direction or the width direction of the seedling raising plate, tomato seedlings on the edge can be watered twice, tomato seedlings on the inner side can only be watered once, and it is avoided that due to the fact that water in seedling raising holes in the edge of the seedling raising plate is lost quickly, the seedling raising plate is damaged. And the tomato seedlings at the edges grow weaker and shorter than the seedlings in the middle, so that the uniformity of tomato growth is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of sprinkler devices, in particular to a tomato seedling tray sprinkler device. Background Art

[0002] Nursery cultivation, or seedling cultivation, originally refers to the process of raising seedlings in a nursery, hotbed, or greenhouse in preparation for transplanting to the ground. It can also refer to the stage in which various organisms undergo artificial protection from childhood until they can survive independently. Plug trays, also known as seedling trays, have become a crucial tool in factory-based seedling production. Whether for flowers or vegetables, plug tray cultivation represents a fundamental innovation in modern horticulture, enabling rapid and large-scale production. Plug trays are typically made of materials such as polystyrene foam, polystyrene, polyvinyl chloride, and polypropylene. They are manufactured using blow molding or injection molding. Typical vegetable and ornamental seedling trays are made of polystyrene. Plug tray cultivation utilizes lightweight, soilless materials such as peat and vermiculite as the seedling substrate, employing mechanized precision sowing, seeding one seed per hole, and achieving single-shot seedling success.

[0003] Xinjiang processes 800,000 mu (approximately 1,000 hectares) of tomatoes annually, all grown using seedling cultivation. Seedlings are typically raised in 128-hole trays from February to March, and are approximately 45 days old. Firstly, water is a crucial medium for photosynthesis and nutrient transport in plants. Water shortages can hinder plant growth and even lead to death. Therefore, timely and appropriate watering is key to ensuring the healthy growth of tomato seedlings. Secondly, during the seedling stage, tomato seedlings have weak root systems and limited water absorption capacity, requiring frequent small amounts of water to keep the soil slightly moist. Once the growth phase begins, water requirements increase as the roots, stems, and leaves grow, necessitating adequate soil moisture. Therefore, tomatoes typically require foliar spraying to replenish water and nutrients after emergence, especially when the outside temperature rises. Watering is required almost daily during the later stages of seedling cultivation.

[0004] In the prior art, when watering tomato seedlings, a nozzle is usually installed on a hose, and the nursery worker drags the hose to spray the leaves. However, since the seedling holes at the edge of the seedling tray are in contact with the air, water loss is faster than in the middle, especially when the seedlings are placed overhead. This will easily cause the tomato seedlings at the edge to grow weaker and shorter than the seedlings in the middle, affecting the uniformity of tomato growth. Summary of the Invention

[0005] An embodiment of the present invention provides a tomato seedling tray watering device, which can solve the problem in the prior art that the seedling holes at the edge of the seedling tray are in contact with the air, and water is lost faster than in the middle, especially when the seedling tray is placed overhead. This will easily cause the tomato seedlings at the edge to grow weaker and shorter than the seedlings in the middle, affecting the uniformity of tomato growth.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: a tomato seedling tray watering device, comprising:

[0007] A top plate, wherein a baffle is provided on the lower surface of the top plate;

[0008] A diverter pipe is connected to an external water source and is provided with a plurality of diverter ports. The water outlet direction of the diverter ports is vertically downward toward the seedling tray. The spacing between the diverter ports is the same as the spacing between the seedling holes on the seedling tray.

[0009] The intercepting mechanism includes: a vertical rod, which is arranged on the diversion pipe; an arc plate, which is formed by smoothly connecting multiple non-concentric arc segments, and the middle part of the arc plate is hinged on the vertical rod; a return spring, which is connected between the arc plate and the vertical rod; a swing rod, the middle part of the swing rod is hinged on the vertical rod, and the swing rod is located above the vertical rod; a lifting rod, which is vertically elastically connected to the diversion pipe; a sealing plug, which is arranged at the lower end of the lifting rod and is adapted to the diversion port;

[0010] Except for the two diversion openings at both ends of the diversion pipe, the remaining diversion openings each correspond to a cut-off mechanism;

[0011] The driving part is connected to the diversion pipe, and the driving part is used to drive the diversion pipe to move along the length direction or the width direction of the seedling tray.

[0012] Preferably, the lifting rod is provided with a limiting ring located inside the diversion tube, and an elastic member is provided between the limiting ring and the inner bottom wall of the diversion tube.

[0013] Preferably, the driving part includes: a reciprocating screw, which is rotatably connected to the lower end of the top plate; a screw nut, which is threadedly connected to the reciprocating screw, a connecting piece, and the shunt pipe is fixedly connected to the screw nut through the connecting piece; a first motor, which is arranged on the top plate, and the output end of the first motor is fixedly connected to the reciprocating screw.

[0014] Preferably, a guide rod parallel to the reciprocating screw is provided at the lower end of the top plate, and a slider fixedly connected to the connecting piece is slidably connected to the guide rod.

[0015] Preferably, the upper end of the rocker arm is rotatably connected to a ball.

[0016] Preferably, each of the diversion ports is provided with an atomizing nozzle.

[0017] Preferably, the device further includes two side panels, the top panel is horizontally slidably connected between the two side panels, a rack is provided on the inner side wall of one of the side panels, a second motor is provided on the top panel, and a gear meshing with the rack is provided at the output end of the second motor.

[0018] Compared with the prior art, the present invention uses the coordinated arrangement of a top plate, a baffle, a diversion pipe, a diversion port, a vertical rod, an arc plate, a reset spring, a rocker arm, a lifting rod, a sealing plug and a driving unit. The driving unit drives the diversion pipe to move back and forth once along the length direction or the width direction of the seedling tray. The tomato seedlings at the edge will be watered twice, while the tomato seedlings on the inside will only be watered once. This avoids the situation where the tomato seedlings at the edge grow weaker and shorter than the seedlings in the middle due to faster water loss in the seedling holes at the edge of the seedling tray, which is beneficial to the uniformity of tomato growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the structure at center A;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention when viewed from above;

[0022] Figure 4 This is a side structural schematic diagram of the present invention;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the diverter pipe of the present invention;

[0024] Figure 6 It is a schematic diagram of the connection structure between the top plate and the side plates of the present invention.

[0025] In the figure: 1. Top plate; 2. Baffle; 3. Diverter pipe; 4. Diverter port; 5. Vertical rod; 6. Arc plate; 7. Rocker arm; 8. Lifting rod; 9. Sealing plug; 10. Limiting ring; 11. Elastic member; 12. Atomizing nozzle; 13. Reciprocating screw; 14. Screw nut; 15. Connecting member; 16. First motor; 17. Guide rod; 18. Slider; 19. Side plate; 20. Rack; 21. Second motor; 22. Gear. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to 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 technical solutions of 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 should not be understood as limiting the present invention.

[0027] like Figures 1 to 6 As shown, a tomato seedling tray watering device comprises:

[0028] A top plate 1, with a baffle 2 provided on the lower surface of the top plate 1;

[0029] A diversion pipe 3 is connected to an external water source and is provided with a plurality of diversion ports 4. The water outlet direction of the diversion ports 4 is vertically downward toward the seedling tray. The spacing between the diversion ports 4 is the same as the spacing between the seedling holes on the seedling tray.

[0030] The intercepting mechanism includes: a vertical rod 5, which is arranged on the diversion tube 3; an arc plate 6, which is formed by smoothly connecting multiple non-concentric arc segments, and the middle part of the arc plate 6 is hinged on the vertical rod 5; a return spring, which is connected between the arc plate 6 and the vertical rod 5; a rocker rod 7, the middle part of the rocker rod 7 is hinged on the vertical rod 5, and the rocker rod 7 is located above the vertical rod 5; a lifting rod 8, which is vertically elastically connected to the diversion tube 3; a sealing plug 9, which is arranged at the lower end of the lifting rod 8 and is adapted to the diversion port 4;

[0031] Except for the two diversion ports 4 at both ends of the diversion pipe 3, the remaining diversion ports 4 each correspond to a cut-off mechanism;

[0032] The driving part is connected to the diversion tube 3, and the driving part is used to drive the diversion tube 3 to move along the length direction or width direction of the seedling tray.

[0033] Taking the diversion pipe 3 moving along the length direction of the seedling tray, and moving from right to left to the left end, and then from the left end to the right end to water the tomato seedlings as an example, the number of diversion ports 4 is the same as the number of seedling holes in each row on the seedling tray, and corresponds one to one. In specific use, when the driving part drives the diversion pipe 3 to move from the right end to the left end, when the diversion pipe 3 moves to the top of the first row of seedling holes at the right end, all the diversion ports 4 are opened, and the first row of seedling holes is watered for the first time. When the diversion pipe 3 moves to the top of the second row of seedling holes at the right end, the swing rod 7 is affected The blocking effect of the baffle 2 rotates clockwise, and the lower end of the rotating swing rod 7 squeezes the left half of the arc plate 6, driving the arc plate 6 to rotate counterclockwise around the hinge point between it and the vertical rod 5, so that the arc plate 6 squeezes the lifting rod 8 downward, and the lifting rod 8 drives the sealing plug 9 to move downward and insert into the diversion port 4, sealing the inner diversion port 4, while the two diversion ports 4 at both ends remain unblocked, and only the seedling holes on both sides are watered for the first time. When the diversion pipe 3 moves to the top of the first row of seedling holes on the left end, the swing rod 7 is separated from the baffle 2, and the elastic force of the reset spring is released. When the water supply is fully open, the water supply pipe 3 is opened, and the water supply pipe 3 is opened, and the water supply pipe 3 is opened. When the water supply pipe 3 is opened, the water supply pipe 3 is opened, and the water supply pipe 3 is opened. When the water supply pipe 3 is opened, the water supply pipe 3 is opened, and the water supply pipe 3 is opened. When the water supply pipe 3 is opened, the water supply pipe 3 is opened, and the water supply pipe 3 is opened. When the water supply pipe 3 is opened, the water supply pipe 3 is opened, and the water supply pipe 3 is opened. When the water supply pipe 3 is opened, the water supply pipe 3 is opened, and the water supply pipe 3 is opened The curved plate 6 rotates clockwise around its hinge point with the vertical rod 5, so that the curved plate 6 does not apply force to the lifting rod 8, all the diversion ports 4 remain unblocked, the inner seedling holes are watered for the first time, and the seedling holes on both sides of the edge are watered for the second time. When the diversion tube 3 moves to above the first row of seedling holes on the right end, the rocker arm 7 is disengaged from the baffle 2 again, and is reset under the elastic potential energy of the reset spring. The lifting rod 8 drives the rising sealing plug 9 to disengage from the diversion port 4, all the diversion ports 4 are unblocked, and the first row of seedling holes on the right end are watered for the second time.

[0034] In order to achieve the purpose of improving the uniformity of tomato growth, preferably, a limiting ring 10 located inside the diversion tube 3 is provided on the lifting rod 8, and an elastic member 11 is provided between the limiting ring 10 and the inner bottom wall of the diversion tube 3, and the elastic member 11 is a spring.

[0035] Specifically, when the upper end of the lifting rod 8 is separated from the baffle 2, the lifting rod 8 will rise and reset under the action of the elastic potential energy of the elastic member 11, so that the sealing plug 9 is separated from the diversion port 4, and the diversion port 4 is connected. When the upper end of the lifting rod 8 contacts the baffle 2, the lifting rod 8 will squeeze the elastic member 11, so that the sealing plug 9 is inserted into the diversion port 4, and the diversion port 4 is blocked.

[0036] In order to achieve the purpose of improving the uniformity of tomato growth, preferably, the driving part includes: a reciprocating screw 13, the reciprocating screw 13 is rotatably connected to the lower end of the top plate 1; a screw nut 14, the screw nut 14 is threadedly connected to the reciprocating screw 13, a connecting piece 15, and the shunt pipe 3 is fixedly connected to the screw nut 14 through the connecting piece 15; a first motor 16, the first motor 16 is a servo motor, the first motor 16 is arranged on the top plate 1, and the output end of the first motor 16 is fixedly connected to the reciprocating screw 13, and the lower end of the top plate 1 is provided with a guide rod 17 parallel to the reciprocating screw 13, and the guide rod 17 is slidably connected to a slider 18 fixedly connected to the connecting piece 15.

[0037] Specifically, in the process of watering the seedling tray, the first motor 16 drives the reciprocating screw 13 to rotate, and the guide rod 17 guides the screw nut 14 through the slider 18. The reciprocating screw 13 drives the screw nut 14 to move along the length direction of the reciprocating screw 13, and automatically returns to reset after moving to the end. The positioning accuracy is high, which is conducive to accurately watering each seedling tray and improving the uniformity of tomato growth.

[0038] In order to achieve the purpose, preferably, the upper end of the rocker rod 7 is rotatably connected with a ball.

[0039] Specifically, by setting the ball, the sliding friction between the rocker arm 7 and the lower surface of the baffle 2 is converted into rolling friction between the ball and the lower surface of the baffle 2. By changing the friction mode, the friction coefficient is reduced, thereby reducing the wear rate of the lower surface of the baffle 2, protecting the lower surface of the baffle 2, extending the service life of the baffle 2, reducing friction noise, and helping to improve the uniformity of tomato growth.

[0040] In order to achieve the purpose of improving the uniformity of tomato growth, preferably, each diversion port 4 is respectively provided with an atomizing nozzle 12.

[0041] Specifically, the setting of the atomizing nozzle 12 is conducive to spraying water evenly on each leaf of the tomato seedling, improving the uniformity of tomato growth, and at the same time reducing the impact force of the water flow, preventing the tomato seedlings from falling under the impact of the water flow, thereby protecting the tomato seedlings.

[0042] In order to achieve the purpose of improving the degree of automation, preferably, it also includes two side panels 19, and the top panel 1 is horizontally slidably connected between the two side panels 19, a rack 20 is provided on the inner side wall of one of the side panels 19, and a second motor 21 is provided on the top panel 1. The second motor 21 is a servo motor, and the output end of the second motor 21 is provided with a gear 22 meshing with the rack 20.

[0043] Specifically, after watering a tray of tomato seedlings, the second motor 21 drives the gear 22 to rotate. Under the meshing action of the gear 22 and the rack 20, the top plate 1 moves along the length direction of the side plate 19, so that the top plate 1 moves to the top of the next seedling tray and waters the tomato seedlings on the next seedling tray.

[0044] Working principle: Taking the diversion pipe 3 moving along the length direction of the seedling tray, and moving from right to left to the left end, and then from the left end to the right end to water the tomato seedlings as an example, when the present invention is in use, the second motor 21 drives the gear 22 to rotate, and under the meshing action of the gear 22 and the rack 20, the top plate 1 moves along the length direction of the side plate 19, so that the top plate 1 moves to the top of one of the seedling trays, the first motor 16 drives the reciprocating screw 13 to rotate, and the guide rod 17 guides the screw nut 14 through the slider 18. The reciprocating screw 13 drives the screw nut 14 to drive the diversion pipe 3 to move along the length direction of the reciprocating screw 13, and automatically returns to reset after moving to the end. When the diversion pipe 3 moves to the right When the diversion tube 3 is above the first row of seedling holes at the end, all the diversion ports 4 are opened, and the first row of seedling holes is watered for the first time. When the diversion tube 3 moves to above the second row of seedling holes at the right end, the swing arm 7 is blocked by the baffle 2 and rotates clockwise. The lower end of the rotating swing arm 7 squeezes the left half of the arc plate 6, driving the arc plate 6 to rotate counterclockwise around the hinge point with the vertical rod 5, so that the arc plate 6 squeezes the lifting rod 8 downward. The lifting rod 8 drives the sealing plug 9 to move downward and insert into the diversion port 4, sealing the inner diversion port 4, while the two diversion ports 4 at both ends remain unobstructed, and only the seedling holes on both sides are watered for the first time. When the diversion tube 3 moves to above the first row of seedling holes at the left end, the swing arm 7 disengages from the baffle 2 , it is reset under the action of the elastic potential energy of the reset spring, and the lifting rod 8 drives the rising sealing plug 9 to disengage from the diversion port 4. All the diversion ports 4 are unblocked, and the first row of seedling holes on the left end is watered for the first time. Then the driving part drives the diversion pipe 3 to move from the left end to the right end. When the diversion pipe 3 moves to the top of the first row of seedling holes on the left end, the first row of seedling holes on the left end is watered for the second time. When the diversion pipe 3 moves to the top of the second row of seedling holes on the left end, the swing arm 7 is blocked by the baffle 2 and rotates counterclockwise. The lower end of the rotating swing arm 7 squeezes the right half of the arc plate 6, driving the arc plate 6 to rotate clockwise around the hinge point with the vertical rod 5, so that the arc plate 6 does not apply force to the lifting rod 8, and all the diversion ports 4 remain The watering is unobstructed, and the inner seedling holes are watered for the first time, and the seedling holes on both sides of the edge are watered for the second time. When the shunt pipe 3 moves to above the first row of seedling holes on the right end, the rocker arm 7 is disengaged from the baffle 2 again, and is reset under the elastic potential energy of the reset spring. The lifting rod 8 drives the rising sealing plug 9 to disengage from the shunt port 4, and all the shunt ports 4 are unobstructed, and the first row of seedling holes on the right end are watered for the second time. Subsequently, the second motor 21 drives the gear 22 to rotate, and under the meshing action of the gear 22 and the rack 20, the top plate 1 moves along the length direction of the side plate 19, so that the top plate 1 moves to above the next seedling tray, and waters the tomato seedlings on the next seedling tray until all the seedling trays are watered.

[0045] Compared with the prior art, the present invention adopts the coordinated arrangement of the top plate 1, the baffle 2, the diversion pipe 3, the diversion port 4, the vertical rod 5, the arc plate 6, the return spring, the rocker arm 7, the lifting rod 8, the sealing plug 9 and the driving part. The driving part drives the diversion pipe 3 to move back and forth once along the length direction or the width direction of the seedling tray. The tomato seedlings at the edge will be watered twice, while the tomato seedlings on the inside will only be watered once. This avoids the situation where the tomato seedlings at the edge grow weaker and shorter than the seedlings in the middle due to the rapid loss of water in the seedling holes at the edge of the seedling tray, which is conducive to the uniformity of tomato growth.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tomato seedling tray watering device, characterized in that: include: A top plate (1), wherein a baffle (2) is provided on the lower surface of the top plate (1); A diversion pipe (3), the diversion pipe (3) is connected to an external water source, a plurality of diversion openings (4) are provided on the diversion pipe (3), the water outlet direction of the diversion openings (4) is vertically downward toward the seedling tray, and the spacing between the diversion openings (4) is the same as the spacing between the seedling holes on the seedling tray; The intercepting mechanism comprises: a vertical rod (5), the vertical rod (5) being arranged on the diversion pipe (3); an arc plate (6), the arc plate (6) being formed by smoothly connecting a plurality of non-concentric arc segments, the middle portion of the arc plate (6) being hinged on the vertical rod (5); a reset spring, the reset spring being connected between the arc plate (6) and the vertical rod (5); a rocker rod (7), the middle portion of the rocker rod (7) being hinged on the vertical rod (5), the rocker rod (7) being located above the vertical rod (5); a lifting rod (8), the lifting rod (8) being vertically elastically connected to the diversion pipe (3); a sealing plug (9), the sealing plug (9) being arranged at the lower end of the lifting rod (8), the sealing plug (9) being adapted to the diversion port (4); Except for the two diversion openings (4) at both ends of the diversion pipe (3), the remaining diversion openings (4) each correspond to a cut-off mechanism; A driving part is connected to the diverter pipe (3), and is used to drive the diverter pipe (3) to move along the length direction or width direction of the seedling tray.

2. The tomato seedling tray watering device according to claim 1, characterized in that: The lifting rod (8) is provided with a limiting ring (10) located inside the diverter tube (3), and an elastic member (11) is provided between the limiting ring (10) and the inner bottom wall of the diverter tube (3).

3. The tomato seedling tray watering device according to claim 1, characterized in that: The driving part comprises: a reciprocating screw (13), the reciprocating screw (13) being rotatably connected to the lower end of the top plate (1); a screw nut (14), the screw nut (14) being threadedly connected to the reciprocating screw (13); a connecting piece (15), the shunt pipe (3) being fixedly connected to the screw nut (14) via the connecting piece (15); and a first motor (16), the first motor (16) being arranged on the top plate (1), the output end of the first motor (16) being fixedly connected to the reciprocating screw (13).

4. The tomato seedling tray watering device according to claim 3, characterized in that: A guide rod (17) parallel to the reciprocating screw rod (13) is provided at the lower end of the top plate (1), and a slider (18) fixedly connected to the connecting member (15) is slidably connected to the guide rod (17).

5. The tomato seedling tray watering device according to claim 1, characterized in that: The upper end of the swing rod (7) is rotatably connected to a ball.

6. The tomato seedling tray watering device according to claim 1, characterized in that: Each of the diversion ports (4) is provided with an atomizing nozzle (12).

7. The tomato seedling tray watering device according to claim 1, characterized in that: The invention also includes two side plates (19), the top plate (1) is horizontally slidably connected between the two side plates (19), a rack (20) is provided on the inner side wall of one of the side plates (19), a second motor (21) is provided on the top plate (1), and an output end of the second motor (21) is provided with a gear (22) meshing with the rack (20).

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