Ground-hidden type plant constant-humidity liquid supply device and liquid supply method

Abstract

The invention discloses an underground plant constant-humidity liquid supply device which comprises an overground front end liquid storage assembly and an underground constant-humidity liquid supply assembly, and the overground front end liquid storage assembly is used for storing water and / or fertilizer. And the overground front-end liquid storage assembly is connected with the underground constant-humidity liquid supply assembly through an overground and underground connecting pipeline. The overground front end liquid storage assembly is provided with a first liquid inlet and a first liquid level valve. The underground constant-humidity liquid supply assembly is provided with a second liquid inlet, and the second liquid inlet is connected with a second liquid level valve; the second liquid level valve is connected with the overground and underground connecting pipeline, and the underground constant-humidity liquid supply assembly comprises an underground main liquid storage tank and an underground soil-liquid mixing tank. The underground soil and liquid mixing box is of a structure with the upper portion open. The underground type constant-humidity liquid supply method for the plants comprises the following steps: filling the same soil used by the plants into the underground soil-liquid mixing box, and horizontally burying the underground soil-liquid mixing box into the soil near the roots of the plants to form a liquid conveying channel.

Description

Technical Field

[0001] The present invention belongs to the field of plant maintenance, and particularly relates to a ground-hidden type plant constant humidity liquid supply device and a liquid supply method. Background Art

[0002] Currently, the technologies for supplying liquid to plants during plant maintenance mainly include manual pouring liquid supply method, automatic spraying liquid supply method, and drip irrigation method.

[0003] Among them, the manual pouring liquid supply method is that the maintainer judges whether the soil environment for plant growth needs to supplement water or fertilizer according to his own experience, and then replenishes water or applies fertilizer to the soil for plant growth by manual pouring. This method often pours according to experience, which is prone to problems of water resource imbalance such as water resource waste or insufficient watering. And for inexperienced maintenance personnel, if the pouring amount is not well controlled, it will lead to poor plant growth and even plant death.

[0004] In the automatic spraying liquid supply method, each time liquid is supplied by spraying, the liquid can only be supplied to the plant area by the spray of the nozzle, and the liquid supply by the spray of each nozzle is not uniform. Therefore, after each liquid supply, the humidity of the soil environment for the growth of plant roots is uneven, resulting in low utilization efficiency of the supplied liquid, easy to cause excessive or insufficient local liquid supply, and unable to provide an accurate humidity soil environment for the plants.

[0005] After setting the initial drip amount in the drip irrigation method, regardless of how the humidity of the plant growth soil environment changes, the liquid is supplied according to the preset amount, and it cannot be adjusted according to the change of the humidity in the plant growth soil environment, which is easy to cause insufficient or excessive liquid supply, resulting in low liquid supply efficiency, and also unable to provide an accurate humidity soil environment for the plants. Summary of the Invention

[0006] The purpose of the present invention is to provide a ground-hidden type plant constant humidity liquid supply device and a liquid supply method to solve the problems that the current liquid supply methods cannot supply liquid accurately, resulting in low liquid supply efficiency and resource waste, and the plants cannot obtain timely and appropriate water or nutrient supply during growth, which affects the plant growth.

[0007] To solve the above technical problems, the present invention provides a ground-hidden type plant constant humidity liquid supply device, which includes a ground-front liquid storage assembly and an underground constant humidity liquid supply assembly; the ground-front liquid storage assembly is of a shell structure and is used for storing water and / or fertilizer.

[0008] The ground-front liquid storage assembly is connected to the underground constant humidity liquid supply assembly through a ground-underground connection pipeline; the ground-underground connection pipeline is used to connect the ground-front liquid storage assembly and the underground constant humidity liquid supply assembly.

[0009] The above-ground front-end liquid storage assembly is provided with a first liquid inlet, the first liquid inlet is connected to a first liquid level valve, the bottom of the above-ground front-end liquid storage assembly is provided with a liquid outlet, and the liquid outlet is connected to a fourth control valve.

[0010] The underground constant-humidity liquid supply assembly is provided with a second liquid inlet, and the second liquid inlet is connected to a second liquid level valve; the second liquid level valve is connected to the above-ground and underground connection pipeline. The underground constant-humidity liquid supply assembly includes an underground main liquid storage tank and an underground soil-liquid mixing tank. The underground main liquid storage tank is connected to the underground soil-liquid mixing tank through a pipeline, and the underground soil-liquid mixing tank has an open-top structure.

[0011] Furthermore, the above-ground front-end liquid storage assembly includes a number of fertilizer storage assemblies, and the fertilizer storage assemblies are used to release fertilizers into the liquid stored in the above-ground front-end liquid storage assembly.

[0012] The fertilizer storage assembly is provided with a fertilizer outlet, and the fertilizer outlet is connected to a third control valve.

[0013] Furthermore, the fertilizer storage assembly is arranged inside the above-ground front-end liquid storage assembly. The top of the fertilizer storage assembly is integrated with the top of the above-ground front-end liquid storage assembly. The top of the fertilizer storage assembly is provided with a fertilizer input port, and the fertilizer input port is used to input fertilizers into the fertilizer storage assembly.

[0014] Furthermore, the third control valve is connected to a valve controller, and the valve controller is used to control the opening and closing of the third control valve.

[0015] Furthermore, the fourth control valve is connected to the underground constant-humidity liquid supply assembly through the above-ground and underground connection pipeline. The fourth control valve is used to control whether the liquid stored in the above-ground front-end liquid storage assembly enters the above-ground and underground connection pipeline, and the fourth control valve is controlled by the valve controller.

[0016] Furthermore, the first liquid level valve is arranged inside the above-ground front-end liquid storage assembly. The first liquid inlet is used to be connected to an external liquid source device through a pipeline, and the external liquid source device is used to provide liquid for the above-ground front-end liquid storage assembly; the first liquid level valve is used to control whether the liquid provided by the external liquid source device is input into the above-ground front-end liquid storage assembly.

[0017] Furthermore, the second liquid level valve is arranged inside the underground main liquid storage tank, and the second liquid inlet is arranged inside the underground main liquid storage tank; the second liquid level valve is used to control whether the liquid or solid-liquid mixture input through the above-ground and underground connection pipeline enters the underground main liquid storage tank.

[0018] Furthermore, the underground main liquid storage tank and the underground soil-liquid mixing tank are of an integral structure. A liquid supply through-hole is provided on the box body where the underground soil-liquid mixing tank and the underground main liquid storage tank are connected, and the liquid supply through-hole is used to transport the liquid or solid-liquid mixture in the underground main liquid storage tank to the underground soil-liquid mixing tank.

[0019] Furthermore, the underground main liquid storage tank and the underground soil-liquid mixing tank are of a split structure, and a liquid supply channel is connected between the underground soil-liquid mixing tank and the underground main liquid storage tank. The liquid supply channel is used to transport the liquid or solid-liquid mixture in the underground main liquid storage tank to the underground soil-liquid mixing tank.

[0020] A method for providing constant humidity liquid supply for underground plants, using an underground plant constant humidity liquid supply device, the liquid supply method includes the following steps:

[0021] A: Fill the same soil used by the plant into the underground soil-liquid mixing tank.

[0022] B: Horizontally bury the underground soil-liquid mixing tank in the soil near the roots of the plant.

[0023] C: Connect the soil filled in the upper open part of the underground soil-liquid mixing tank with the soil near the roots of the plant to form a liquid transport channel.

[0024] The beneficial effects of an underground plant constant humidity liquid supply device and a liquid supply method provided by the present invention are as follows:

[0025] 1. The underground plant constant humidity liquid supply device includes an above-ground front-end liquid storage component and an underground constant humidity liquid supply component. The above-ground front-end liquid storage component transports water or a fertilizer-water mixture to the underground constant humidity liquid supply component through an above-ground and underground connection pipeline. The soil-liquid mixture in the underground soil-liquid mixing tank and the external soil transport water and nutrients to the soil around the roots of the plant through the capillary action and the matrix potential gradient driving principle. The liquid storage amounts in the above-ground front-end liquid storage component and the underground constant humidity liquid supply component are controlled by the first liquid level valve and the second liquid level valve to form a stable liquid supply source, so that the soil humidity environment for the growth of the plant is maintained in a constant range for a long time, and the liquid supply efficiency is not low and resource waste is not caused due to excessive or insufficient liquid supply. It can also ensure that the plant obtains timely and appropriate water or nutrient supply during the growth process to reduce the impact on the plant growth.

[0026] 2. The underground plant constant humidity liquid supply method combined with the above-mentioned underground plant constant humidity liquid supply device can keep the humidity around the roots of the maintained plant within a constant range, accurately supply nutrients to the roots of the plant, effectively improve the utilization efficiency of water and nutrients, and reduce resource waste. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall underground plant constant humidity liquid supply device;

[0028] Figure 2 It is a schematic diagram of the overall above-ground front-end liquid storage component;

[0029] Figure 3 It is a schematic diagram of the overall underground constant humidity liquid supply component. Detailed Embodiments

[0030] To better understand the purpose, structure and function of the invention, the following further describes in detail a ground-hidden plant constant humidity liquid supply device and a liquid supply method of the present invention with reference to the attached Figures 1 to 3 drawings.

[0031] As Figures 1 to 3 shown, a ground-hidden plant constant humidity liquid supply device according to an embodiment of the present invention includes a ground front-end liquid storage assembly 100 and an underground constant humidity liquid supply assembly 300; the ground front-end liquid storage assembly 100 is of a housing structure, and the ground front-end liquid storage assembly 100 is used for storing water and / or fertilizers. The ground front-end liquid storage assembly 100 is connected to the underground constant humidity liquid supply assembly 300 through a ground-underground connection pipeline 200; the ground-underground connection pipeline 200 is used for connecting the ground front-end liquid storage assembly 100 and the underground constant humidity liquid supply assembly 300. The ground front-end liquid storage assembly 100 is provided with a first liquid inlet, the first liquid inlet is connected with a first liquid level valve 110, the bottom of the ground front-end liquid storage assembly 100 is provided with a liquid outlet, and the liquid outlet is connected with a fourth control valve 124.

[0032] The underground constant humidity liquid supply assembly 300 is provided with a second liquid inlet, and the second liquid inlet is connected with a second liquid level valve 310; the second liquid level valve 310 is connected with the ground-underground connection pipeline 200, and the underground constant humidity liquid supply assembly 300 includes an underground main liquid storage tank 320 and an underground soil-liquid mixing tank 330, the underground main liquid storage tank 320 is connected with the underground soil-liquid mixing tank 330 through a pipeline, and the underground soil-liquid mixing tank 330 is of an open-top structure. The first liquid level valve 110 is arranged inside the ground front-end liquid storage assembly 100, the first liquid inlet is used for being connected with an external liquid source device 400 through a pipeline, and the external liquid source device 400 is used for supplying liquid to the ground front-end liquid storage assembly 100. The first liquid level valve 110 is arranged inside the ground front-end liquid storage assembly 100, and the first liquid level valve 110 is used for controlling whether the liquid provided by the external liquid source device 400 is input into the ground front-end liquid storage assembly 100. The fourth control valve 124 is used for controlling whether the liquid stored in the ground front-end liquid storage assembly 100 is input into the ground-underground connection pipeline 200. The second liquid level valve 310 is arranged inside the underground main liquid storage tank 320, and the second liquid inlet is arranged inside the underground main liquid storage tank 320; the second liquid level valve 310 is used for controlling whether the liquid or solid-liquid mixture input from the ground-underground connection pipeline 200 enters the underground main liquid storage tank 320.

[0033] During use, connect the above-ground and underground connecting pipe 200 to the above-ground front-end liquid storage assembly 100 and the underground main liquid storage tank 320 of the underground constant humidity liquid supply assembly 300. Fill the underground soil-liquid mixing tank 330 with planting soil, and then bury the underground soil-liquid mixing tank 330 at a position below the soil surface. Horizontally arrange the underground constant humidity liquid supply assembly 300 near the roots of the plants, so that the soil in the mixing cavity is integrated with the soil around the plants. The advantage of doing this is that it can give full play to the capillary action of the soil and transport water and / or nutrients to the soil around the plant roots according to the principle of the matrix potential gradient drive. Arranging near the roots can reduce the time for water and / or nutrients to reach the roots, so that water and / or nutrients can be delivered to the plant roots as soon as possible and the consumption of water and / or nutrients can be reduced. The horizontal placement design makes the liquid level height in the soil-liquid mixing tank 330 the same as the liquid level height in the underground main liquid storage tank 320.

[0034] As is known from the capillary phenomenon, after the underground soil-liquid mixing tank 330 is filled with soil, the water in the underground soil-liquid mixing tank 330 will be transported to the soil surface at the top of the underground soil-liquid mixing tank 330 due to the capillary phenomenon, thus forming a wet area on the soil surface at the top of the underground soil-liquid mixing tank 330. As is known from the principle of the matrix potential gradient drive, the water in the soil will diffuse from the wet soil with a higher matrix potential to the dry soil with a lower matrix potential, and this diffusion process will continue until the matrix potential gradient disappears and reaches a dynamic equilibrium, which ensures that the soil connected to the surrounding of the underground soil-liquid mixing tank 330 with a constant liquid level height can naturally maintain the corresponding humidity range within the area where the matrix potential gradient disappears and reaches a dynamic equilibrium.

[0035] When the plant undergoes transpiration of water or the water on the soil surface volatilizes, the water around the plant roots decreases, the humidity decreases, and its matrix potential also decreases simultaneously. At this time, a matrix potential gradient is formed. As is known from the principle of the matrix potential gradient drive, the water in the soil with a higher matrix potential will diffuse to the soil with a lower matrix potential at the same time, which drives the water in the soil around the roots to be transported to the roots. And these waters carry nutrients and are continuously supplied by the liquid in the underground soil-liquid mixing tank 330 through the capillary phenomenon, which enables the humidity around the roots to be maintained within a constant range. The amount of liquid supplied by the underground soil-liquid mixing tank 330 completely depends on how much water has evaporated from the soil surface and how much water has been absorbed and transpired by the plant, achieving precise liquid supply and improving the utilization efficiency of the liquid.

[0036] In the present invention, the external liquid source device 400 can use tap water or other uninterrupted liquid sources. Before use, sufficient water is injected into the ground front-end liquid storage assembly 100 through the external liquid source device 400. Sufficient water or a fertilizer-water mixture (a mixture of fertilizer and water) is transported through the above-ground and underground connection pipes 200 to communicate with the underground main liquid storage tank 320. A second liquid level valve 310 is provided in the underground main liquid storage tank 320. When the underground soil-liquid mixing tank 330 transports the water or fertilizer-water mixture to the soil around the roots of the plants through the principles of capillary action and matrix potential gradient drive, the liquid level in the underground main liquid storage tank 320 will gradually decrease. If the liquid level in the underground main liquid storage tank 320 is lower than the preset value of the second liquid level valve 310, the second liquid level valve 310 will open, so that the liquid level in the underground main liquid storage tank 320 returns to a fixed position for subsequent use. This keeps the liquid volume in the underground main liquid storage tank 320 within a constant range, providing a constant liquid source for the underground soil-liquid mixing tank 330. The connection between the underground main liquid storage tank 320 and the ground front-end liquid storage assembly 100 enables the underground main liquid storage tank 320 to obtain sufficient replenishment.

[0037] It can be understood that a first liquid level valve 110 is provided in the ground front-end liquid storage assembly 100. When the liquid level in the ground front-end liquid storage assembly 100 is lower than the preset value, the first liquid level valve 110 will open, and the water from the external liquid source device 400 will be injected into the ground front-end liquid storage assembly 100, so that the liquid level in the ground front-end liquid storage assembly 100 is always within a constant range.

[0038] In some embodiments, the ground front-end liquid storage assembly 100 includes a plurality of fertilizer storage assemblies 120, and the fertilizer storage assemblies 120 are used to release fertilizers into the liquid stored in the ground front-end liquid storage assembly 100. The fertilizer storage assemblies 120 are provided with fertilizer outlets, and the fertilizer outlets are connected with third control valves 122. The fertilizer storage assemblies 120 are arranged inside the ground front-end liquid storage assembly 100. The tops of the fertilizer storage assemblies 120 are integrated with the top of the ground front-end liquid storage assembly 100. The tops of the fertilizer storage assemblies 120 are provided with fertilizer inlets 121, and the fertilizer inlets 121 are used to input fertilizers into the fertilizer storage assemblies 120. The third control valves 122 are connected with valve controllers 123, and the valve controllers 123 are used to control the on-off of the third control valves 122. Such a design can add an appropriate amount of fertilizer according to actual needs, thereby improving the utilization efficiency of fertilizers and avoiding affecting the growth of plants due to excessive or insufficient fertilizers.

[0039] The fourth control valve 124 is connected to the underground constant humidity liquid supply assembly 300 through the above-ground and underground connection pipeline 200. The fourth control valve 124 is used to control whether the liquid stored in the above-ground front-end liquid storage assembly 100 enters the above-ground and underground connection pipeline 200, and the fourth control valve 124 is controlled by the valve controller 123. Such a design controls the on-off of the fourth control valve 124 through the valve controller 123, enabling the on-off of the liquid supply between the above-ground front-end liquid storage assembly 100 and the underground main liquid storage tank 320, and can meet the characteristics of dry-wet alternation required during plant growth.

[0040] In some embodiments, the underground main liquid storage tank 320 and the underground soil-liquid mixing tank 330 are of an integral structure. A liquid supply through-hole 340 is provided on the box body where the underground soil-liquid mixing tank 330 is connected to the underground main liquid storage tank 320. The liquid supply through-hole 340 is used to transport the liquid or solid-liquid mixture in the underground main liquid storage tank 320 into the underground soil-liquid mixing tank 330. The integral design can improve the overall rigidity and at the same time improve the efficiency of the liquid or fertilizer-water mixture in the underground main liquid storage tank 320 entering the underground soil-liquid mixing tank 330.

[0041] In other embodiments, the underground main liquid storage tank 320 and the underground soil-liquid mixing tank 330 are of a split structure. A liquid supply channel is connected between the underground soil-liquid mixing tank 330 and the underground main liquid storage tank 320. The liquid supply channel is used to transport the liquid or solid-liquid mixture in the underground main liquid storage tank 320 into the underground soil-liquid mixing tank 330. The split design can place the underground soil-liquid mixing tank 330 closer to the roots of the plants, reducing the limiting factors of the site and the impact on the soil.

[0042] A method for underground plant constant humidity liquid supply uses an underground plant constant humidity liquid supply device. The liquid supply method includes the following steps:

[0043] A: Fill the same soil used by the plants into the underground soil-liquid mixing tank 330;

[0044] B: Horizontally bury the underground soil-liquid mixing tank 330 in the soil near the roots of the plants;

[0045] C: Connect the soil filled in the open upper part of the underground soil-liquid mixing tank 330 to the soil near the roots of the plants to form a liquid transport channel.

[0046] The underground plant constant humidity liquid supply device and the liquid supply method of the present invention are easy to implement and can be implemented where there is a fixed liquid source. It can also be used without infrastructure such as electricity, reducing the dependence on infrastructure and having a wider range of use areas.

[0047] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An underground plant constant humidity liquid supply device, characterized in that: It comprises an above-ground front-end liquid storage component (100) and an underground constant humidity liquid supply component (300); the above-ground front-end liquid storage component (100) is a shell structure, and the above-ground front-end liquid storage component (100) is used to store water and / or fertilizer; The above-ground front-end liquid storage component (100) is connected to the underground constant humidity liquid supply component (300) via an above-ground underground connecting pipeline (200); the above-ground underground connecting pipeline (200) is used to connect the above-ground front-end liquid storage component (100) and the underground constant humidity liquid supply component (300); The above-ground front-end liquid storage component (100) is provided with a first liquid inlet, the first liquid inlet is connected to a first liquid level valve (110), and the bottom of the above-ground front-end liquid storage component (100) is provided with a liquid outlet, the liquid outlet is connected to a fourth control valve (124); The underground constant humidity liquid supply component (300) is provided with a second liquid inlet, and the second liquid inlet is connected to a second liquid level valve (310); the second liquid level valve (310) is connected to the above-ground underground connecting pipeline (200); the underground constant humidity liquid supply component (300) comprises an underground main liquid storage tank (320) and an underground soil-liquid mixing tank (330); the underground main liquid storage tank (320) is connected to the underground soil-liquid mixing tank (330) through a pipeline; and the underground soil-liquid mixing tank (330) is an open structure at the top.

2. The underground plant constant humidity liquid supply device according to claim 1, characterized in that: The above-ground front-end liquid storage assembly (100) comprises a plurality of fertilizer storage assemblies (120), and the fertilizer storage assemblies (120) are used to release fertilizer into the liquid stored in the above-ground front-end liquid storage assembly (100); The fertilizer storage assembly (120) is provided with a fertilizer outlet, and the fertilizer outlet is connected to a third control valve (122).

3. The underground plant constant humidity liquid supply device according to claim 2, characterized in that: The fertilizer storage component (120) is arranged inside the above-ground front end liquid storage component (100); the top of the fertilizer storage component (120) is integrally connected to the top of the above-ground front end liquid storage component (100); the top of the fertilizer storage component (120) is provided with a fertilizer input port (121); the fertilizer input port (121) is used to input fertilizer into the fertilizer storage component (120).

4. The underground plant constant humidity liquid supply device according to claim 2, characterized in that: The third control valve (122) is connected to a valve controller (123), and the valve controller (123) is used to control the on and off of the third control valve (122).

5. The underground plant constant humidity liquid supply device according to claim 4, characterized in that: The fourth control valve (124) is connected to the underground constant humidity liquid supply component (300) via an above-ground and underground connecting pipeline (200). The fourth control valve (124) is used to control whether the liquid stored in the above-ground front-end liquid storage component (100) enters the above-ground and underground connecting pipeline (200). The fourth control valve (124) is controlled by the valve controller (123).

6. The underground plant constant humidity liquid supply device according to claim 1, characterized in that: The first liquid level valve (110) is arranged inside the above-ground front-end liquid storage component (100); the first liquid inlet is used to connect to an external liquid source device (400) through a pipeline; the external liquid source device (400) is used to provide liquid to the above-ground front-end liquid storage component (100); the first liquid level valve (110) is used to control whether the liquid provided by the external liquid source device (400) is input into the above-ground front-end liquid storage component (100).

7. The underground plant constant humidity liquid supply device according to claim 1, characterized in that: The second liquid level valve (310) is arranged inside the underground main liquid storage tank (320), and the second liquid inlet is arranged inside the underground main liquid storage tank (320); the second liquid level valve (310) is used to control whether the liquid or solid-liquid mixture input by the above-ground and underground connecting pipeline (200) enters the underground main liquid storage tank (320).

8. The underground plant constant humidity liquid supply device according to claim 7, characterized in that: The underground main liquid storage tank (320) and the underground soil-liquid mixing tank (330) are of an integrated structure. A liquid supply through hole (340) is provided on the box body connecting the underground soil-liquid mixing tank (330) and the underground main liquid storage tank (320). The liquid supply through hole (340) is used to transport the liquid or solid-liquid mixture in the underground main liquid storage tank (320) to the underground soil-liquid mixing tank (330).

9. The underground plant constant humidity liquid supply device according to claim 7, characterized in that: The underground main liquid storage tank (320) and the underground soil-liquid mixing tank (330) are of a split structure. A liquid supply channel is connected between the underground soil-liquid mixing tank (330) and the underground main liquid storage tank (320). The liquid supply channel is used to transport the liquid or solid-liquid mixture in the underground main liquid storage tank (320) to the underground soil-liquid mixing tank (330).

10. A method for constant humidity liquid supply to underground plants, characterized in that: Using the underground plant constant humidity liquid supply device according to any one of claims 1 to 9, the liquid supply method comprises the following steps: A: Fill the underground soil-liquid mixing box (330) with the same soil used for the plants; B: burying the underground soil-liquid mixing box (330) horizontally in the soil near the roots of the plants; C: The soil filled into the upper open part of the underground soil-liquid mixing box (330) is connected with the soil near the roots of the plants to form a liquid transport channel.

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