A constant-temperature and moisture-preserving transplanting device for eggplant seedling raising

By controlling the seedling temperature and automatically replenishing water through a constant temperature and humidity transplanting device, the problems of temperature fluctuation and unstable humidity in eggplant seedling cultivation are solved, achieving efficient seedling cultivation, increasing germination rate and reducing manual labor.

CN224670461UActive Publication Date: 2026-08-25NINGXIA XIANFENG AGRI DEV CO
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Patent Information

Application Number
CN202521813120.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-08-25
Estimated Expiration
2035-08-25

AI Technical Summary

Technical Problem

During eggplant seedling cultivation, large temperature fluctuations and unstable humidity lead to a long germination cycle and low germination rate. In addition, artificial watering can easily cause the substrate to be too wet or too dry, which affects the root development of seedlings.

Method used

A constant temperature and humidity transplanting device is used, which uses heating pads and temperature sensors to control the temperature of the seedling trays, and combines the capillary action of gauze to automatically replenish water. The top cover regulates ventilation to balance the needs of moisture retention and air permeability.

Benefits of technology

Shorten the germination time of eggplant seedlings, increase the germination rate, reduce the frequency of artificial watering, avoid the risk of root rot due to excessive substrate moisture, and improve the seedling effect.

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Abstract

This application discloses a constant temperature and humidity transplanting device for eggplant seedlings, comprising: a seedling tray and a base frame, the seedling tray being nested within the base frame, a heating pad being installed inside the base frame, a heating coil being installed inside the heating pad, a temperature sensor being installed on the top of the heating pad, several planting holes being set on the seedling tray, each planting hole being lined with a layer of gauze, several pieces of gauze passing through the heating pad, a top cover being set on the top of the base frame, a concave plate being set in the center of the top of the top cover, a screw cap being movably installed on the concave plate, automatically replenishing water to the substrate in the planting holes through the capillary action of the gauze, avoiding soaking and causing the risk of root rot due to excessive substrate moisture, while reducing the frequency of manual watering, and providing a suitable temperature for the seedling tray in combination with the temperature sensor and heating pad, shortening the germination time of eggplant seedlings and improving the germination rate, during the seedling process, covering with the top cover enhances the moisture and heat preservation effect of the seedling tray, and the screw cap on the top cover is used to regulate ventilation, balancing the needs of moisture and air permeability.
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Description

Technical Field

[0001] This application relates to the field of agricultural seedling technology, and in particular to a constant temperature and moisture-retaining transplanting device for eggplant seedlings. Background Technology

[0002] In eggplant seedling cultivation, temperature and humidity control are key factors affecting germination rate. Traditional seedling cultivation methods often use open-air or simple greenhouses, leading to large temperature fluctuations. Unstable environmental temperatures result in a long germination period, affecting the germination rate. Artificial watering can easily cause the substrate to become too wet or too dry, affecting seedling root development. Open seedling trays experience rapid water evaporation and poor moisture retention. Utility Model Content This application provides a constant temperature and humidity transplanting device for eggplant seedling cultivation. In this device, gauze laid in the planting hole of the seedling tray hangs down to the bottom frame. The gauze automatically replenishes water to the substrate in the planting hole through capillary action, avoiding the risk of root rot caused by excessive moisture due to soaking, and reducing the frequency of manual watering. The device is equipped with a heating pad in the bottom frame, which is in close contact with the bottom of the seedling tray. Combined with a temperature sensor, the heating pad provides a suitable temperature for the seedling tray, shortening the germination time of eggplant seedlings and improving the germination rate. During the seed cultivation process, the top cover is covered to enhance the moisture and heat preservation effect of the seedling tray. The ventilation is adjusted by using the screw cap on the top cover to balance the needs of moisture and air permeability.

[0003] This application provides a constant temperature and humidity transplanting device for eggplant seedlings, including: a seedling tray and a bottom frame. The seedling tray is nested inside the bottom frame. A heating pad is provided inside the bottom frame, and a heating coil is provided inside the heating pad. The heating pad is in close contact with the bottom of the seedling tray. A temperature sensor is provided on the top of the heating pad. Several planting holes are provided on the seedling tray. A layer of gauze is laid inside each planting hole. The gauze passes through the bottom of the planting hole and hangs down inside the bottom frame. Several pieces of gauze pass through the heating pad. A water inlet pipe is connected to the side wall of the bottom frame. A cover is provided on the top of the water inlet pipe. A drain pipe is connected to the side wall of the bottom frame. A solenoid valve is provided on the drain pipe. A top cover is provided on the top of the bottom frame. A concave plate is provided in the center of the top of the top cover. The concave plate has four through holes 1. A screw cap is movably installed on the concave plate. The screw cap has four through holes 2. A locking post is provided in the middle of the screw cap. The locking post is movably installed inside the concave plate. A controller is installed on the outer wall of the bottom frame, which is electrically connected to the temperature sensor, heating coil, and solenoid valve.

[0004] Furthermore, the heating pad is provided with several rectangular holes, the positions and numbers of which correspond to the planting holes.

[0005] Furthermore, an outer edge is provided on the outer wall of the bottom frame.

[0006] Furthermore, a transparent window is provided on one side wall of the bottom frame.

[0007] Furthermore, the top cover is made of transparent acrylic material.

[0008] Furthermore, the controller is equipped with a display screen and several operation buttons.

[0009] As can be seen from the above technical solution, this application provides a constant temperature and humidity transplanting device for eggplant seedling cultivation, including: a seedling tray and a bottom frame. The seedling tray is nested inside the bottom frame. A mixed substrate is filled into the seedling tray. After planting eggplant seeds, the seedling tray is nested inside the bottom frame. A heating pad is provided inside the bottom frame, and a heating coil is provided inside the heating pad. The outside of the heating pad is made of waterproof material. The heating pad is in close contact with the bottom of the seedling tray. A temperature sensor is provided on the top of the heating pad. During the eggplant seedling cultivation process, the controller controls the heating coil inside the heating pad to turn on, and the heating pad heats up to heat the seedling tray. The temperature sensor monitors the temperature of the heating pad and feeds the temperature data back to the controller. Inside, when the temperature monitored by the temperature sensor is higher than the set value, the controller controls the heating coil to turn off and stop heating. When the temperature monitored by the temperature sensor is lower than the set value, the controller controls the heating coil to turn on and continue heating. The combination of the temperature sensor and the heating pad provides a suitable temperature for the seedling tray, shortening the eggplant seedling germination time and increasing the germination rate. The seedling tray has several planting holes. After filling each planting hole with substrate, eggplant seeds are planted. A layer of gauze is laid inside each planting hole, running through the bottom of the hole and hanging down into the bottom frame. Several pieces of gauze pass through the heating pad, and multiple pieces of gauze also pass through corresponding rectangular holes in the heating pad, hanging down into the water in the bottom frame, absorbing nutrients through capillary action. The system automatically replenishes water to the substrate in the planting holes, preventing overwatering and the risk of root rot. It also reduces the frequency of manual watering and labor. A water inlet pipe connects to the side wall of the bottom frame, with a cover at the top. Opening the cover allows water to be injected into the bottom frame through the inlet pipe, submerging the gauze by about 2cm. A drain pipe connects to the side wall of the bottom frame, equipped with a solenoid valve. When drainage is needed, the controller opens the solenoid valve, draining the water from the bottom frame. A top cover is installed on the top of the bottom frame. After planting eggplant seeds in the seedling tray, the top cover is placed on top. During seed germination, the top cover enhances the moisture retention and heat preservation of the seedling tray. A concave plate is located at the top center, with four through holes (I). A movable cap is mounted on the concave plate, with four through holes (II). A locking post is located in the center of the cap, which is movably installed inside the concave plate. The cap rotates within the concave plate via the locking post, causing the through holes (II) to be misaligned with the first through holes, thus adjusting the ventilation volume and balancing the needs for moisture retention and air permeability. A controller is located on the outer wall of the bottom frame. The controller is electrically connected to a temperature sensor, a heating coil, and a solenoid valve. In conjunction with the temperature sensor and the heating coil, the controller controls the power of the heating coil to ensure the heating temperature of the heating pad on the seedling tray, ensuring the suitable sprouting temperature for the eggplant. The controller also controls the opening of the solenoid valve to drain water from the bottom frame.

[0010] In summary, the beneficial effects of this application are as follows: 1. The device uses gauze laid in the planting holes of the seedling tray to hang down into the bottom frame. The gauze automatically replenishes water to the substrate in the planting holes through capillary action, avoiding the risk of root rot caused by soaking the substrate and reducing the frequency of manual watering and manual labor.

[0011] 3. The device has a heating pad inside the bottom frame. The heating pad is in close contact with the bottom of the seedling tray. Combined with the temperature sensor, the heating pad provides a suitable temperature for the seedling tray, shortening the germination time of eggplant seedlings and improving the germination rate.

[0012] 2. The device is equipped with a top cover, and a screw cap is installed on the top cover. During the seed seedling cultivation process, covering the top cover improves the moisture retention and heat preservation effect of the seedling tray, and the screw cap on the top cover can be used to adjust the ventilation, balancing the needs of moisture retention and air permeability. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this application.

[0015] Figure 2 This is a top view of this application.

[0016] Figure 3 This is a schematic diagram of the seedling tray structure in this application.

[0017] Figure 4 This is a schematic diagram of the heating pad structure.

[0018] Illustration: Among them, 1-bottom frame, 2-seedling tray, 201-planting hole, 202-gauze, 3-heating pad, 301-rectangular hole, 302-heating coil, 4-temperature sensor, 5-water inlet pipe, 6-drain pipe, 7-solenoid valve, 8-outer edge, 9-top cover, 10-concave plate, 101-through hole one, 11-screw cap, 111-through hole two, 12-clamping post, 13-controller. Detailed Implementation To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0019] As can be seen from the above technical solutions, see [link / reference]. Figures 1-4 .

[0020] Example 1: A constant temperature and humidity transplanting device for eggplant seedling cultivation includes: a seedling tray 2 and a base frame 1. The seedling tray 2 is nested inside the base frame 1. A mixed substrate is filled into the seedling tray 2. After planting eggplant seeds, the seedling tray 2 is nested inside the base frame 1. A heating pad 3 is installed inside the base frame 1, and a heating coil 302 is installed inside the heating pad 3. The exterior of the heating pad 3 is made of waterproof material and is in close contact with the bottom of the seedling tray 2. A temperature sensor 4 is installed on the top of the heating pad 3. During the eggplant seedling cultivation process, a controller 13 controls the heating coil 302 inside the heating pad 3 to turn on, causing the heating pad 3 to heat up and heat the seedling tray 2. The temperature sensor 4 monitors the temperature of the heating pad 3 and records the temperature readings. Feedback is sent to the controller 13. When the temperature monitored by the temperature sensor 4 is higher than the set value, the controller 13 controls the heating coil 302 to turn off and stop heating. When the temperature monitored by the temperature sensor 4 is lower than the set value, the controller 13 controls the heating coil 302 to turn on and continue heating. Combined with the temperature sensor 4 and the heating pad 3, a suitable temperature is provided for the seedling tray 2, shortening the eggplant seedling germination time and improving the germination rate. The seedling tray 2 has several planting holes 201. After filling each planting hole 201 with substrate, eggplant seeds are planted. A layer of gauze 202 is laid inside each planting hole 201, extending through the bottom of the planting hole 201 and hanging down into the bottom frame 1. Several layers of gauze... Cloth 202 penetrates the heating pad 3, and multiple pieces of gauze 202 penetrate the corresponding rectangular holes 301 of the heating pad 3, hanging down into the water in the bottom frame 1. Through capillary action, water is automatically added to the substrate in the planting hole 201, avoiding the risk of root rot due to over-wetting of the substrate and reducing the frequency of manual watering. A water inlet pipe 5 is connected to the side wall of the bottom frame 1, and a cover is provided at the top of the water inlet pipe 5. Opening the cover allows an appropriate amount of water to be injected into the bottom frame 1 through the water inlet pipe 5, submerging the gauze 202 by about 2 cm. A drain pipe 6 is connected to the side wall of the bottom frame 1, and a solenoid valve 7 is installed on the drain pipe 6. When drainage is needed, the controller 13 controls the solenoid valve 7 to open, allowing water to drain through the drain pipe 6. Water is drained from the bottom frame 1. The bottom frame 1 is equipped with a top cover 9. After the eggplant seeds are planted in the seedling tray 2, the top cover 9 is then placed on top. During the seedling cultivation process, the top cover 9 enhances the moisture retention and heat preservation effect of the seedling tray 2. A concave plate 10 is set in the center of the top of the top cover 9. The concave plate 10 has four through holes 101. A screw cap 11 is movably installed on the concave plate 10. The screw cap 11 has four through holes 111. A locking post 12 is set in the middle of the screw cap 11. The locking post 12 is movably installed in the concave plate 10. The screw cap 11 rotates in the concave plate 10 through the locking post 12, so that the through holes 111 and the through holes 101 are misaligned to adjust the ventilation volume, thereby balancing the needs of moisture retention and air permeability. A controller 13 is installed on the outer wall of the bottom frame 1. The temperature sensor 4, heating coil 302 and solenoid valve 7 are electrically connected to the controller 13. In combination with the temperature sensor 4 and the heating coil 302, the controller 13 controls the power of the heating coil 302 to ensure the heating temperature of the heating pad 3 on the seedling tray 2, and ensure the appropriate sprouting temperature of the eggplant. The controller 13 controls the solenoid valve 7 to open so that the bottom frame 1 drains water.

[0021] In a preferred embodiment, the heating pad 3 is provided with a plurality of rectangular holes 301, the position and number of which correspond to the planting holes 201, so that the gauze 202 in the planting holes 201 can pass through the corresponding rectangular holes 301 of the heating pad 3, and the gauze 202 can be used to replenish the seedling tray 2 with water in the bottom frame 1 through capillary action.

[0022] In a preferred embodiment, the outer wall of the bottom frame 1 is provided with an outer edge 8, which facilitates the placement of the top cover 9.

[0023] As a preferred embodiment, a transparent window is provided on one side wall of the bottom frame 1, which facilitates observation of the water level inside the bottom frame 1.

[0024] As a preferred embodiment, the top cover 9 is made of transparent acrylic material, which facilitates observation of the eggplant germination status in the seedling tray 2.

[0025] In a preferred embodiment, the controller 13 is provided with a display screen and several operation buttons. The display screen shows the temperature of the heating pad 3 monitored by the temperature sensor 4, and the operation buttons are used to control the on / off state of the solenoid valve 7 and the heating pad 3, and to set the temperature value of the heating pad 3 monitored by the temperature sensor 4.

[0026] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0027] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A constant temperature and moisture-retaining transplanting device for eggplant seedling cultivation, characterized in that, include: A seedling tray (2) and a bottom frame (1) are provided. The seedling tray (2) is nested inside the bottom frame (1). A heating pad (3) is provided inside the bottom frame (1). A heating coil (302) is provided inside the heating pad (3). The heating pad (3) is in close contact with the bottom of the seedling tray (2). A temperature sensor (4) is provided on the top of the heating pad (3). Several planting holes (201) are provided on the seedling tray (2). A layer of gauze (202) is laid inside each planting hole (201). The gauze (202) runs through the bottom of the planting hole (201) and hangs down inside the bottom frame (1). Several pieces of gauze (202) run through the heating pad (3). A water inlet pipe (5) is connected to the side wall of the bottom frame (1). A cover is provided on the top of the water inlet pipe (5). A drain pipe (6) is connected to the side wall of the bottom frame (1). A solenoid valve (7) is provided on the drain pipe (6). A top cover (9) is provided on the top of the bottom frame (1). A concave plate (10) is provided in the center of the top of the top cover (9). Four through holes (101) are provided on the concave plate (10). A screw cap (11) is movably installed on the concave plate (10). Four through holes (111) are provided on the screw cap (11). A locking post (12) is provided in the middle of the screw cap (11). The locking post (12) is movably installed in the concave plate (10). A controller (13) is provided on the outer wall of the bottom frame (1), and the temperature sensor (4), the heating coil (302) and the solenoid valve (7) are electrically connected to the controller (13).

2. The constant temperature and moisture-retaining transplanting device for eggplant seedling cultivation according to claim 1, characterized in that, The heating pad (3) is provided with a plurality of rectangular holes (301), and the position and number of the plurality of rectangular holes (301) correspond to the planting holes (201).

3. The constant temperature and moisture-retaining transplanting device for eggplant seedling cultivation according to claim 1, characterized in that, The bottom frame (1) has an outer edge (8) on its outer wall.

4. The constant temperature and moisture-retaining transplanting device for eggplant seedling cultivation according to claim 1, characterized in that, A transparent window is provided on one side wall of the bottom frame (1).

5. The constant temperature and moisture-retaining transplanting device for eggplant seedling cultivation according to claim 1, characterized in that, The top cover (9) is made of transparent acrylic material.

6. The constant temperature and moisture-retaining transplanting device for eggplant seedling cultivation according to claim 1, characterized in that, The controller (13) is equipped with a display screen and several operation buttons.