A kind of greenhouse citrus seedling cultivation nutrient solution spraying device

Abstract

This invention provides a nutrient solution spraying device for greenhouse citrus seedling cultivation, comprising a housing with pipes mounted on it. The housing is mounted on a frame fixed within the greenhouse. A connecting pipe is rotatably connected to the bottom of the pipes, and a delivery pipe is connected to one side of the connecting pipe. A nozzle is detachably connected to the discharge end of the delivery pipe. A cover is fitted onto the vertical part of the delivery pipe connecting to the nozzle, and an electric telescopic rod is provided on the delivery pipe to drive the cover downwards to cover the nozzle. A motor is fixed to the housing to drive the connecting pipe to rotate. This invention can effectively spray nutrient solution onto all citrus seedlings in the greenhouse from all angles, eliminating spray dead zones. It can also target and spray poorly growing seedlings, avoiding the problem of nutrient solution dispersion and waste.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, and in particular to a nutrient solution spraying device for greenhouse citrus seedling cultivation. Background Technology

[0002] Cultivating citrus seedlings in greenhouses creates a controllable "ideal home" for them, which is superior to the open-air environment, thereby achieving the goals of high survival rate, high uniformity, healthy and rapid growth. When cultivating citrus seedlings in greenhouses, it is also necessary to regularly use a spraying device to spray nutrient solution on the seedlings to ensure their normal growth. For example, Chinese utility model patent application number CN202321378967.4 discloses a nutrient solution spraying device for greenhouse citrus seedling cultivation, including a greenhouse body, a frame, a box, pipes, and a nozzle. A sleeve is rotatably connected to the upper end of the nozzle, and the nozzle and pipe are detachably connected via an mounting plate. The mounting plate is equipped with a limiting component; the limiting component includes a limiting rod slidably connected to the mounting plate, one end of which passes through the mounting plate and engages with the sleeve. Two inclined clamping rods are connected at intervals on the end of the limiting rod near the sleeve, each clamping rod abutting against the outer side of the sleeve. A pull rod is fixedly connected to the end of the limiting rod away from the sleeve, and a slot is correspondingly formed on the mounting plate along the moving direction of the pull rod, with the pull rod slidably connected to the slot. This utility model solves the problem in the prior art where the pipe and nozzle are integrated, making it impossible to replace the nozzle separately, thus causing the spraying device to malfunction subsequently.

[0003] While the aforementioned device allows for individual nozzle replacement, citrus seedlings in greenhouses are typically planted in rows, occupying a large area. The nozzles can only move forward and backward, not laterally. Therefore, citrus seedlings planted on the sides of the greenhouse cannot be adequately sprayed with nutrient solution. Furthermore, the growth status of citrus seedlings varies; some seedlings are growing poorly and require more nutrient solution. The nutrient solution sprayed from the nozzles is dispersed and cannot be targeted to any particular seedling, requiring prolonged spraying. This results in the nutrient solution being dispersed onto other seedlings that do not require much additional nutrient solution, leading to waste. Utility Model Content

[0004] This utility model discloses a nutrient solution spraying device for greenhouse citrus seedling cultivation, which solves the problems that the nozzle cannot move laterally, resulting in the citrus seedlings on both sides of the greenhouse not being fully sprayed with nutrient solution, and the nutrient solution sprayed by the nozzle being dispersed, making it impossible to spray a poorly growing citrus seedling.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A nutrient solution spraying device for greenhouse citrus seedling cultivation includes a box body with pipes installed on it. The box body is mounted on a frame, which is fixed inside the greenhouse. A connecting pipe is rotatably connected to the bottom of the pipes, and an infusion pipe is connected to one side of the connecting pipe. A nozzle is detachably connected to the drain end of the infusion pipe. A cover is fitted on the vertical part of the infusion pipe connected to the nozzle. An electric telescopic rod is provided on the infusion pipe to drive the cover to move downward and cover the nozzle. A motor for driving the connecting pipe to rotate is fixed on the box body.

[0006] Compared with the prior art, the present invention has the following beneficial effects: The nutrient solution inside the container enters the connecting pipe through a pipeline, then flows into the nozzle through an infusion pipe. The nutrient solution is then sprayed onto the citrus seedlings through holes in the nozzle. Subsequently, starting the motor drives the connecting pipe, which in turn rotates the infusion pipe, changing the position of the nozzle. This allows the nozzle to spray the nutrient solution onto the citrus seedlings located on the left, middle, or right side of the greenhouse, avoiding any blind spots. Simultaneously, when it is necessary to spray nutrient solution onto a poorly growing citrus seedling, the electric telescopic rod can be activated to move the cover downwards, covering the nozzle. The nutrient solution sprayed from the nozzle is blocked by the inner wall of the cover and drips down onto that specific seedling, preventing the nutrient solution from spreading to other areas. This invention effectively sprays nutrient solution onto all citrus seedlings in the greenhouse from all angles, eliminating blind spots, and allows for targeted spraying of a poorly growing seedling, preventing nutrient solution dispersion and waste. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model from a frontal sectional view; Figure 2 This is a cross-sectional structural schematic diagram of the cover of this utility model; Figure 3 This is a cross-sectional structural diagram of the connecting pipe of this utility model.

[0008] In the diagram: 1. Greenhouse body; 2. Greenhouse frame; 3. Box; 31. Pipe; 32. Fixing ring; 33. Connecting rod; 34. Connecting ring; 4. Connecting pipe; 41. Infusion pipe; 42. Circular plate; 5. Nozzle; 51. Threaded cylinder; 52. Circular ring; 6. Cover cylinder; 7. Electric telescopic rod; 71. Fixing plate; 72. Battery; 8. Motor; 9. Slag discharge pipe; 91. Filter cylinder; 92. Sealing ring; 93. Solenoid valve. Detailed Implementation

[0009] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0010] like Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a nutrient solution spraying device for greenhouse citrus seedling cultivation, including a box body 3, a pipe 31 on the box body 3, the box body 3 being mounted on a frame 2, the frame 2 being fixed inside the greenhouse body 1, a connecting pipe 4 being rotatably connected to the bottom of the pipe 31, a delivery pipe 41 being connected to one side of the connecting pipe 4, and a nozzle 5 being detachably connected to the discharge end of the delivery pipe 41; a cover 6 is fitted on the vertical part of the delivery pipe 41 connected to the nozzle 5, and an electric telescopic rod 7 is provided on the delivery pipe 41 for driving the cover 6 to move downward to cover the nozzle 5; a motor 8 is fixed on the box body 3 for driving the connecting pipe 4 to rotate. The bottom end of the pipe 31 passes through the top end of the connecting pipe 4, and the bottom end of the connecting pipe 4 passes through a threaded slag discharge pipe 9, the top end of the slag discharge pipe 9 being connected to a filter cylinder 91 that covers the bottom end of the pipe 31. A sealing ring 92 connected to the bottom end of the connecting pipe 4 is fixed on the slag discharge pipe 9, and a solenoid valve 93 is installed on the slag discharge pipe 9. A drive gear is fixed on the shaft of motor 8, and a driven gear meshing with the drive gear is fixed on the connecting pipe 4. After starting motor 8, the drive gear drives the driven gear to rotate, which in turn causes the connecting pipe 4 to drive the infusion pipe 41 to rotate. The position of the nozzle 5 is adjusted so that the nozzle 5 can be located on the left, right, and middle of the greenhouse body 1, so that all citrus seedlings can be fully supplemented with nutrient solution. The box 3 is equipped with a water tank for storing nutrient solution (the water tank, the output of nutrient solution in the water tank, and the forward and backward movement of the box 3 are all existing technologies and will not be described in detail here). The nutrient solution in the water tank is discharged into the connecting pipe 4 through pipe 31 (pipe 31 is rotatably connected to the connecting pipe 4 and sealed by a packing seal). The filter cylinder 91 can filter large particles of impurities in the nutrient solution entering the connecting pipe 4, so that the large particles of impurities are confined in the filter cylinder 91 and the slag discharge pipe 9, while the nutrient solution enters the nozzle 5 through the infusion pipe 41, and then flows through the infusion pipe 41. The nutrient solution is discharged through the holes on the nozzle 5 and sprayed onto the citrus seedlings. When it is necessary to supplement the nutrient solution for a poorly growing citrus seedling, the electric telescopic rod 7 can be activated to drive the cover 6 downward, so that the top surface inside the cover 6 contacts the top of the nozzle 5 and the cover 6 covers the nozzle 5. The nutrient solution sprayed by the nozzle 5 will be confined inside the cover 6 and then discharged downward through the opening at the bottom of the cover 6, so as to accurately supplement the nutrient solution for a specific citrus seedling. After the nutrient solution is sprayed, the solenoid valve 93 can be opened to allow the impurities accumulated in the filter cylinder 91 and the slag discharge pipe 9 to be discharged through the bottom of the slag discharge pipe 9, thus completing the discharge of impurities and preventing impurities from affecting the subsequent spraying of nutrient solution. The operator can also rotate the slag discharge pipe 9 to separate the slag discharge pipe 9 from the connecting pipe 4 and inspect the filter cylinder 91. When the slag discharge pipe 9 and the connecting pipe 4 are threaded together, the sealing ring 92 can increase the sealing effect at the connection between the slag discharge pipe 9 and the connecting pipe 4.

[0011] like Figure 1 and Figure 2As shown, the infusion tube 41 is divided into a horizontal section and a vertical section. The horizontal section is inclined towards the nozzle 5 and its two ends are connected to the vertical section and the connecting tube 4, respectively. A fixing ring 32 is fixed on the housing 3. A connecting rod 33 is rotatably connected to the outer ring surface of the fixing ring 32. A connecting ring 34, which is fixed to the horizontal section of the connecting tube 4, is fixed to the bottom end of the connecting rod 33. A fixing plate 71, which is connected to the infusion tube 41, is fixed to the fixed end of the electric telescopic rod 7. A storage battery 72 is fixed on the fixing plate 71. The telescopic end of the electric telescopic rod 7 is fixed to the cover 6. When the infusion tube 41 rotates, the connecting ring 34 and the connecting rod 33 rotate accordingly to increase the stability of the infusion tube 41. The storage battery 72 can supply power to the solenoid valve 93 and the electric telescopic rod 7. After the electric telescopic rod 7 is started, the telescopic end of the electric telescopic rod 7 can drive the cover 6 to move up or down.

[0012] like Figure 1 and Figure 2 As shown, the top of the nozzle 5 is connected to a threaded cylinder 51, which is threadedly connected to the drain end of the infusion tube 41. A ring 52 is fixed to the top of the threaded cylinder 51, and an annular circular plate 42 is fixed to the infusion tube 41. The bottom of the circular plate 42 has an annular groove for the ring 52 to be inserted into. When the nozzle 5 needs to be repaired or replaced, the threaded cylinder 51 can be rotated to separate the nozzle 5 from the infusion tube 41 (the vertical surface of the infusion tube 41 has threads that match the threaded cylinder 51). When the threaded cylinder 51 is threadedly connected to the infusion tube 41, the top of the threaded cylinder 51 contacts the bottom of the circular plate 42, thus achieving a better sealing effect. Furthermore, the ring 52 enters the annular groove at the bottom of the circular plate 42, further improving the sealing performance.

[0013] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A nutrient solution spraying device for greenhouse citrus seedling cultivation, comprising a box (3), a pipe (31) provided on the box (3), the box (3) being installed on a frame (2), the frame (2) being fixed inside the greenhouse body (1), characterized in that: The bottom of the pipe (31) is rotatably connected to a connecting pipe (4), and one side of the connecting pipe (4) is connected to an infusion pipe (41). The drain end of the infusion pipe (41) is detachably connected to a nozzle (5). A cover (6) is fitted on the vertical part where the infusion pipe (41) is connected to the nozzle (5). An electric telescopic rod (7) is provided on the infusion pipe (41) to drive the cover (6) to move downward and cover the nozzle (5). A motor (8) is fixed on the housing (3) to drive the connecting pipe (4) to rotate.

2. The nutrient solution spraying device for greenhouse citrus seedling cultivation according to claim 1, characterized in that: The bottom end of the pipe (31) passes through the top end of the connecting pipe (4), and the bottom end of the connecting pipe (4) passes through the threaded slag discharge pipe (9). The top end of the slag discharge pipe (9) is connected to a filter cylinder (91) that covers the bottom end of the pipe (31).

3. The nutrient solution spraying device for greenhouse citrus seedling cultivation according to claim 2, characterized in that: A sealing ring (92) connected to the bottom end of the connecting pipe (4) is fixed on the slag discharge pipe (9), and a solenoid valve (93) is installed on the slag discharge pipe (9).

4. The nutrient solution spraying device for greenhouse citrus seedling cultivation according to claim 1, characterized in that: The infusion tube (41) is divided into a horizontal part and a vertical part. The horizontal part is inclined toward the nozzle (5) and its two ends are connected to the vertical part and the connecting tube (4) respectively. A fixing ring (32) is fixed on the box (3). A connecting rod (33) is rotatably connected to the outer ring surface of the fixing ring (32). A connecting ring (34) is fixed at the bottom end of the connecting rod (33) and is fixed to the horizontal part of the connecting tube (4).

5. The nutrient solution spraying device for greenhouse citrus seedling cultivation according to claim 1, characterized in that: The fixed end of the electric telescopic rod (7) is fixed with a fixed plate (71) connected to the infusion tube (41), and a storage battery (72) is fixed on the fixed plate (71). The telescopic end of the electric telescopic rod (7) is fixed with the cover (6).

6. The nutrient solution spraying device for greenhouse citrus seedling cultivation according to claim 1, characterized in that: The top of the nozzle (5) is connected to a threaded cylinder (51), which is threadedly connected to the drain end of the infusion pipe (41).

7. The nutrient solution spraying device for greenhouse citrus seedling cultivation according to claim 6, characterized in that: The top of the threaded cylinder (51) is fixed with a ring (52), and the infusion tube (41) is fixed with a circular plate (42) in the shape of an annulus. The bottom of the circular plate (42) is provided with an annular groove for the ring (52) to be inserted.

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