A circulating liquid supply system for a smart agricultural greenhouse

Abstract

This invention belongs to the field of agricultural greenhouse technology, specifically relating to a circulating nutrient solution supply device for a smart agricultural greenhouse. It includes a support frame with a petri dish slidably connected inside. Sliding grooves are provided on both sides of the support frame, with the interior of the grooves slidably connected to a support plate. The support plate is slidably connected to the petri dish. The top of the nutrient solution supply tank is fixedly connected to the bottom of the support frame, and one side of the supply tank is fixedly connected to the input end of a circulating pump. The output end of the circulating pump is fixedly connected to one end of a supply pipe, and the other end of the supply pipe is fixedly connected to a storage plate. The bottom of the storage plate is fixedly connected to the top of the support frame, and multiple spray nozzles are fixedly mounted on the bottom of the storage plate. This invention effectively improves the utilization rate of seedling space by effectively adjusting the position of the support plate; simultaneously, it ensures uniform spraying of nutrient solution, promoting seedling absorption and growth, and improving seedling survival rate.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural greenhouse technology, specifically relating to a circulating liquid supply device for a smart agricultural greenhouse. Background Technology

[0002] A greenhouse, also known as a hothouse, is a room equipped with facilities for frost protection, heating, and light transmission, used for cultivating warm-loving plants during winter. In agricultural production, most situations require the pre-cultivation of plant seedlings. Greenhouse seedling cultivation is a major feature of agricultural greenhouses, saving seeds, facilitating centralized management, and cultivating robust seedlings. Since seedling cultivation usually needs to be carried out in advance, protective facilities are needed to create a suitable environment for cultivating strong seedlings of the appropriate age, while providing nutrient solutions to ensure that the seedlings obtain the nutrients needed for growth and development.

[0003] In existing circulating nutrient solution supply equipment, the distance between the petri dishes is fixed. When the distance between two adjacent petri dishes is small, the space becomes too cramped, which is not conducive to seedling growth. When the distance between two adjacent petri dishes is large, the internal space is too large, resulting in uneven distribution of nutrient solution supply and affecting the overall growth of seedlings. Utility Model Content

[0004] The purpose of this invention is to provide a circulating nutrient solution supply device for a smart agricultural greenhouse, which effectively improves the utilization rate of seedling space by adjusting the position of the support plate; at the same time, it ensures that the nutrient solution is sprayed evenly, promotes the absorption and growth of seedlings, and improves the survival rate of seedlings.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A circulating liquid supply device for a smart agricultural greenhouse includes a support frame, a petri dish is slidably connected inside the support frame, and sliding grooves are provided on both sides of the support frame. The interior of the sliding grooves is slidably connected to a support plate, and the support plate is slidably connected to the petri dish.

[0007] The liquid supply tank has its top fixedly connected to the bottom of the support frame, and one side of the liquid supply tank is fixedly connected to the input end of the circulation pump. The output end of the circulation pump is fixedly connected to one end of the liquid supply pipe, and the other end of the liquid supply pipe is fixedly connected to the liquid storage plate. The bottom of the liquid storage plate is fixedly connected to the top of the support frame, and multiple spray nozzles are fixedly attached to the bottom of the liquid storage plate.

[0008] Furthermore, adjusting plates are fixed on both sides of the bottom of the support plate. The adjusting plates are slidably connected to the sliding groove, and a positioning hole is provided on the side of the adjusting plate away from the support plate. The interior of the positioning hole is threadedly connected to the positioning screw.

[0009] Furthermore, the output end of the positioning screw is rotatably connected to the bottom of the sliding groove, and multiple scale markings are evenly provided on one side of the sliding groove, and the scale markings are adapted to the support plate.

[0010] Furthermore, protective plates are hinged to both sides of the support frame, and a connecting hole is opened on one side of the protective plate. The interior of the connecting hole is rotatably connected to a fixing pin, and the output end of the fixing pin is threadedly connected to a fixing hole opened in the support frame.

[0011] Furthermore, a filter plate is fixed to the bottom side inside the support frame.

[0012] Furthermore, transparent glass is fixed around the support frame.

[0013] Furthermore, the culture dish has multiple culture tanks arranged in an array.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention relates to a circulating nutrient solution supply device for a smart agricultural greenhouse. A support plate moves the culture dishes in a sliding trough, facilitating adjustment of the distance between the dishes and optimizing the seedling space. This ensures dynamic adjustment of the spacing throughout the seedling growth cycle, avoiding early space waste or later overcrowding problems caused by traditional fixed spacing. Simultaneously, by rationally controlling the distance between seedlings, the device ensures that the coverage of the spray nozzles matches the seedling distribution, preventing localized over- or under-nutrient solutions. This results in a more uniform distribution of nutrient solution, promoting seedling absorption and growth, and improving seedling survival rates. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this practical application;

[0017] Figure 2 This is a schematic diagram of the overall structure and local adjustments of this practical application;

[0018] Figure 3 This is a partial structural sectional view of this utility model;

[0019] Figure 4 This is a partial exploded view of the overall structure of this practical application;

[0020] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 10. Support frame; 101. Sliding groove; 102. Filter plate; 11. Petri dish; 12. Support plate; 121. Adjustment plate; 122. Positioning hole; 123. Positioning screw; 13. Protective plate; 131. Fixing pin; 20. Liquid supply tank; 21. Circulation pump; 22. Liquid supply pipe; 23. Liquid storage plate. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figures 1 to 5 As shown, a circulating liquid supply device for a smart agricultural greenhouse includes a support frame 10, a petri dish 11 is slidably connected inside the support frame 10, and sliding grooves 101 are provided on both sides of the support frame 10. The interior of the sliding grooves 101 is slidably connected to a support plate 12, and the support plate 12 is slidably connected to the petri dish 11.

[0025] The liquid supply tank 20 is fixedly connected to the bottom of the support frame 10 at its top, and one side of the liquid supply tank 20 is fixedly connected to the input end of the circulation pump 21. The output end of the circulation pump 21 is fixedly connected to one end of the liquid supply pipe 22, and the other end of the liquid supply pipe 22 is fixedly connected to the liquid storage plate 23. The bottom of the liquid storage plate 23 is fixedly connected to the top of the support frame 10, and multiple spray nozzles are fixedly mounted on the bottom of the liquid storage plate 23.

[0026] In this embodiment, it should be noted that the liquid supply tank 20 is equipped with a liquid level sensor or EC / pH monitoring module to monitor the components in the solution and ensure that the liquid remains stable. This is a conventional technical means and will not be elaborated on here. At the same time, a recovery port is provided on the top of the liquid supply tank 20 to recover unabsorbed liquid. The support frame 10 serves as the main frame of the device. By opening sliding grooves 101 on both sides, it effectively guides the support plate 12 to move flexibly, thereby moving the petri dish 11 to adapt to the needs of crops at different growth stages. At the same time, the slidable connection between the petri dish 11 and the support plate 12 facilitates the cleaning, replacement, or batch management of crops in the petri dish 11, reducing the risk of disease and pest transmission. When liquid supply is required, the circulation pump 21 is controlled to deliver liquid to the storage plate 23 through the liquid supply pipe 22. Subsequently, multiple spray nozzles fixed at the bottom ensure uniform and stable liquid supply and can refine the liquid for easy absorption by seedlings. Excess liquid will return to the liquid supply tank 20 through the recovery port to achieve liquid circulation supply.

[0027] like Figure 3 , Figure 4 , Figure 5As shown, adjustment plates 121 are fixed on both sides of the bottom of the support plate 12. The adjustment plates 121 are slidably connected to the sliding groove 101 respectively. A positioning hole 122 is provided on the side of the adjustment plate 121 away from the support plate 12. The interior of the positioning hole 122 is threadedly connected to the positioning screw 123.

[0028] Preferably, the output end of the positioning screw 123 is rotatably connected to the bottom of the sliding groove 101, and multiple scale marks are evenly provided on one side of the sliding groove 101, and the scale marks are compatible with the support plate 12.

[0029] In this embodiment, it should be noted that when the positioning screw 123 and the adjusting plate 121 are threadedly connected, and the bottom of the positioning screw 123 and the sliding groove 101 are tightly fitted, the positioning screw 123 and the sliding groove 101 can limit the adjustment plate 121 and the support plate 12 through their cooperation. When the bottom of the positioning screw 123 and the sliding groove 101 are disengaged, the positioning screw 123 releases the limitation on the adjusting plate 121, allowing the adjusting plate 121 to drive the support plate 12 to move in the sliding groove 101, thereby adjusting the distance between the support plates 12. When adjusting the distance between two adjacent support plates 12, the distance between the two adjacent support plates 12 can be calculated through the corresponding scale markings on each of the two support plates 12, so that the construction personnel can accurately control the distance between the two adjacent support plates 12, making the space utilization for seedling cultivation more reasonable.

[0030] like Figure 1 , Figure 2 As shown, protective plates 13 are hinged to both sides of the support frame 10. A connecting hole is provided on one side of the protective plate 13. The interior of the connecting hole is rotatably connected to the fixing pin 131. The output end of the fixing pin 131 is threadedly connected to the fixing hole provided in the support frame 10.

[0031] Based on the previous embodiment, in this embodiment, it should be noted that the protective plate 13 is fixed with a sealing gasket on the side that contacts the support frame 10, which effectively ensures that no liquid will leak from the protective plate 13 during circulating liquid supply; when it is necessary to adjust the seedling distance, the fixing pin 131 is rotated in sequence to separate it from the fixing hole; then, the protective plate 13 is separated from both sides of the support frame 10; this ensures that the staff can remove the petri dish 11 from the support frame 10 for easy replacement and cleaning; after replacement, the protective plate 13 is brought into contact with both sides of the support frame 10, and then the fixing pin 131 is rotated in sequence to fix the protective plate 13 to both sides of the support frame 10, which can effectively fix the petri dish 11 and ensure the safety and stability of seedling cultivation and growth.

[0032] like Figure 1 , Figure 2As shown, a filter plate 102 is fixed to the bottom side inside the support frame 10; it can effectively filter the liquid supply process and prevent the roots of seedling plants, substrate particles or sediments from entering the liquid supply tank 20; at the same time, it can prevent impurities from clogging the spray nozzle or damaging the circulation pump 21.

[0033] Preferably, transparent glass is provided on the front and rear sides of the support frame 10 and below the protective plate 13, which makes it easier for staff to observe the growth and development of seedlings and improve the survival rate of seedlings.

[0034] Preferably, the petri dish 11 has multiple culture tanks arranged in an array. Each culture tank can individually hold crop seedlings or substrate blocks, which facilitates batch management of plants at different growth stages.

[0035] The working principle of this utility model is as follows: By placing the seedlings in the culture tank of the culture dish 11, the positioning screw 123 is rotated to effectively release the limiting position between the adjusting plate 121 and the sliding groove 101, ensuring that the culture dish 11 is precisely adjusted by the support plate 12 to rationally plan the use of the seedling space. Then, the positioning screw 123 is rotated to stably fix the adjusting plate 121 in the designated position in the sliding groove 101. Subsequently, the protective plate 13 is moved, and the fixing pin 131 set on the protective plate 13 is used to fix the protective plate 13 to the support frame 10. On both sides; after fixing, start the circulation pump 21 to drive the liquid in the liquid supply tank 20 to be transferred from the liquid supply pipe 22 to the liquid storage plate 23. Then, the liquid is sprayed finely through the atomizing nozzle at the bottom of the liquid storage plate 23 so that the liquid fills all parts of the seedlings and is easy for the seedlings to absorb. At the same time, the excess liquid that is not absorbed will drip onto the filter plate 102. By filtering the impurities in the liquid, the damage caused by impurities to the circulation pump 21 can be reduced. At the same time, the spray nozzle is prevented from being blocked, so as to ensure stable circulation and liquid supply.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A circulating liquid supply device for a smart agricultural greenhouse, characterized in that: Includes a support frame (10), a petri dish (11) is slidably connected inside the support frame (10), and sliding grooves (101) are provided on both sides of the support frame (10). The interior of the sliding grooves (101) is slidably connected to a support plate (12), and the support plate (12) is slidably connected to the petri dish (11). The liquid supply tank (20) is fixedly connected to the bottom of the support frame (10) at its top, and one side of the liquid supply tank (20) is fixedly connected to the input end of the circulation pump (21). The output end of the circulation pump (21) is fixedly connected to one end of the liquid supply pipe (22), and the other end of the liquid supply pipe (22) is fixedly connected to the liquid storage plate (23). The bottom of the liquid storage plate (23) is fixedly connected to the top of the support frame (10), and multiple spray nozzles are fixedly attached to the bottom of the liquid storage plate (23).

2. The circulating liquid supply device for a smart agricultural greenhouse according to claim 1, characterized in that: Adjustment plates (121) are fixed on both sides of the bottom of the support plate (12). The adjustment plates (121) are slidably connected to the sliding groove (101) respectively. A positioning hole (122) is provided on the side of the adjustment plate (121) away from the support plate (12). The interior of the positioning hole (122) is threadedly connected to the positioning screw (123).

3. The circulating liquid supply device for a smart agricultural greenhouse according to claim 2, characterized in that: The output end of the positioning screw (123) is rotatably connected to the bottom of the sliding groove (101), and multiple scale marks are evenly provided on one side of the sliding groove (101), and the scale marks are compatible with the support plate (12).

4. The circulating liquid supply device for a smart agricultural greenhouse according to claim 1, characterized in that: The support frame (10) is hinged to two protective plates (13) on both sides. A connecting hole is provided on one side of the protective plate (13). The interior of the connecting hole is rotatably connected to a fixing pin (131). The output end of the fixing pin (131) is threadedly connected to the fixing hole provided in the support frame (10).

5. The circulating liquid supply device for a smart agricultural greenhouse according to claim 1, characterized in that: A filter plate (102) is fixed to the bottom side inside the support frame (10).

6. The circulating liquid supply device for a smart agricultural greenhouse according to claim 1, characterized in that: The support frame (10) is fixed with transparent glass on all four sides.

7. The circulating liquid supply device for a smart agricultural greenhouse according to claim 1, characterized in that: The culture dish (11) has multiple culture tanks arranged in an array.

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