Deep liquid flow liquid return device for improving oxygen content of nutrient solution

Abstract

The utility model discloses a deep liquid flow liquid return device for improving the oxygen content of a nutrient solution, which is applied to the field of nutrient solution oxygen content adjusting devices and comprises a seedbed, a liquid tank is arranged in the seedbed, a connecting pipe is fixedly sleeved in the seedbed, and the top end of the connecting pipe is communicated with the liquid tank; the electric telescopic rod is controlled to ascend and descend, a nutrient solution on the top of the first fixing plate is pushed by the first fixing plate and the sealing sleeve to ascend and enter the liquid tank through the connecting pipe, the nutrient solution in the liquid tank flows back into the quantity adjusting bin through the descending of the first fixing plate, a certain liquid level difference can be formed, and the circulation speed of the nutrient solution is increased; when the nutrient solution in the liquid tank is reduced, the height of the liquid level of the nutrient solution is reduced to a certain degree, the plant root system can be exposed, the plant root system is helped to make more contact with oxygen in air, and when the nutrient solution in the liquid tank is reduced, the nutrient solution can flow, and the situation that the nutrient solution only flows on the surface is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of nutrient solution oxygen content adjusting device, especially in improving the deep liquid flow back liquid device of nutrient solution oxygen content. BACKGROUND

[0002] Deep liquid flow hydroponics refers to a kind of hydroponic technology that plant roots grow in a relatively deep and flowing nutrient solution layer. The planting seedbed usually holds about 5-10 cm of nutrient solution, and the plant roots are placed in it, and at the same time, the nutrient solution circulation is used to improve the dissolved oxygen content of the nutrient solution, so that the nutrients in the nutrient solution are more uniform.

[0003] When this cultivation method is used, the total amount of nutrient solution in the seedbed is large, and the composition and concentration are relatively stable. Short-term water and power stoppage or equipment failure has no effect on plant growth, and it is easy to manage.

[0004] However, when the hydroponic seedbed is too long, the total amount of nutrient solution in the seedbed is too large, which can cause the water flow to be slow during the liquid circulation, and ultimately result in low dissolved oxygen content or nutrient element content of the nutrient solution, causing weak plant roots and uneven plant growth.

[0005] In order to solve the above problems, we propose a deep liquid flow back liquid device for improving the oxygen content of nutrient solution. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a deep liquid flow back liquid device for improving the oxygen content of nutrient solution, which has the advantage of being able to adjust the depth of the nutrient solution.

[0007] The above technical purpose of the utility model is achieved by the following technical scheme: a deep liquid flow back liquid device for improving the oxygen content of nutrient solution, comprising a seedbed, a liquid tank is formed in the inside of the seedbed, a connecting pipe is fixedly sleeved in the inside of the seedbed, the top end of the connecting pipe is communicated with the liquid tank, a quantity adjusting bin is communicated with the bottom end of the connecting pipe, an air pressure hole is formed in the rear side of the quantity adjusting bin, a sealing sleeve is sealingly and slidably connected in the inside of the quantity adjusting bin, a first fixed plate is fixedly sleeved in the inside of the sealing sleeve, an electric telescopic rod is fixedly connected to the bottom of the first fixed plate, and the bottom end of the electric telescopic rod is installed with the bottom of the inner cavity of the quantity adjusting bin.

[0008] By setting the liquid tank, the connecting pipe, the first fixed plate, the sealing sleeve and the electric telescopic rod, the depth of the nutrient solution capacity in the liquid tank can be controlled. After the liquid level drops, a part of the plant roots will be exposed to the air, so that the plant roots can contact more oxygen and nutrients.

[0009] The utility model is further provided with: a gas exhaust pipe is communicated with the top of the quantity adjusting bin, and a control valve one is installed in the inside of the gas exhaust pipe.

[0010] The above technical solution is used to exhaust air from the control chamber through the exhaust pipe and control valve 1.

[0011] The present invention is further configured such that: two guide rods are fixedly connected to the bottom of the inner cavity of the adjustment chamber, a sliding sleeve is slidably connected to the surface of the guide rods, and two connecting rods fixedly connected to the fixed plate are fixedly connected to the surface of the sliding sleeve.

[0012] The above technical solution, through the setting of guide rod, sliding sleeve and connecting rod, is used to increase the stability of the fixed plate when it is pushed up and down by the electric telescopic rod.

[0013] In summary, this utility model has the following beneficial effects:

[0014] This invention uses a timer controller to control the raising and lowering of an electric telescopic rod. A fixed plate and a sealing sleeve push the nutrient solution at the top of the fixed plate upwards, allowing it to enter the nutrient tank through a connecting pipe. The downward movement of the fixed plate causes the nutrient solution inside the tank to flow back into the regulating chamber, creating a certain liquid level difference and increasing the speed of nutrient solution circulation. When the nutrient solution level in the tank decreases, the liquid level drops to a certain point, exposing the plant roots and allowing them to have more contact with oxygen in the air. The nutrient solution also flows as it descends, preventing it from merely flowing on the surface. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a side sectional view of the adjustable volume compartment of this utility model.

[0018] Attached reference numerals: 1. Seedbed; 2. Liquid tank; 3. Connecting pipe; 4. Adjustment chamber; 5. Sealing sleeve; 6. Fixing plate one; 7. Electric telescopic rod; 8. Exhaust pipe; 9. Control valve one; 10. Guide rod; 11. Sliding sleeve; 12. Connecting rod; 13. Air pressure hole. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example 1:

[0021] refer to Figure 1 , Figure 2 , Figure 3The utility model provides a kind of deep liquid flow liquid return device for improving the oxygen content of nutrient solution, including seedbed 1, the inside of seedbed 1 is provided with liquid tank 2, the inside of seedbed 1 is fixedly sleeved with connecting pipe 3, the top end of connecting pipe 3 is communicated with liquid tank 2, the bottom end of connecting pipe 3 is communicated with regulating bin 4, the rear side of regulating bin 4 is provided with air pressure hole 24, the inside of regulating bin 4 is sealingly slidably connected with sealing sleeve 5, the inside of sealing sleeve 5 is fixedly sleeved with fixed plate one 6, the bottom of fixed plate one 6 is fixedly connected with electric telescopic rod 7, the bottom end of electric telescopic rod 7 is installed with the bottom of the inner chamber of regulating bin 4;Lift through electric telescopic rod 7, utilize fixed plate one 6 and sealing sleeve 5 to promote the nutrient solution on the top of fixed plate one 6 to rise through connecting pipe 3 into the inside of liquid tank 2 and fixed plate one 6 drops to make the nutrient solution inside liquid tank 2 return flow to the inside of regulating bin 4, can form certain liquid level difference, increase the speed of nutrient solution circulation, when the nutrient solution inside liquid tank 2 reduces, nutrient solution liquid level height reduces to certain degree, can make plant root system bare, to help plant root system more contact oxygen in air, when the nutrient solution inside liquid tank 2 drops, nutrient solution can flow, avoid nutrient solution only on the surface flow;

[0022] Further, the top of regulating bin 4 is communicated with exhaust pipe 16, control valve one 17 is installed in the inside of exhaust pipe 16, through the setting of exhaust pipe 16 and control valve one 17, for discharging the air inside regulating bin 4.

[0023] Further, the bottom of the inner chamber of regulating bin 4 is fixedly connected with two guide rods 19, the surface of guide rod 19 is slidably connected with sliding sleeve 20, the surface of sliding sleeve 20 is fixedly connected with two connecting rods 21 fixedly connected with fixed plate one 6, through the setting of guide rod 19, sliding sleeve 20 and connecting rod 21, for increasing the stability of fixed plate one 6 when being pushed up and down by electric telescopic rod 7.

[0024] Brief description of use process: in use, plant root system is located in the inside of liquid tank 2 and sinks into the nutrient solution in the inside of liquid tank 2;

[0025] When it is necessary to adjust the depth of nutrient solution inside liquid tank 2, such as raising the nutrient solution inside liquid tank 2, by starting electric telescopic rod 7, the output end of electric telescopic rod 7 will lift fixed plate one 6 upward, since the inner wall of sealing sleeve 5 and regulating bin 4 is in sealingly slidably connected state, such as needle cylinder and the piston of its inside propellant cannot appear liquid leakage, when fixed plate one 6 rises, it will push nutrient solution upward to enter connecting pipe 3 and then inject from bottom to top into the inside of liquid tank 2, so that the liquid level of nutrient solution inside liquid tank 2 is increased, and during the injection process, nutrient solution can be in flow state;

[0026] If the nutrient solution in the liquid tank 2 needs to be lowered, the fixed plate 1 6 is lowered by the output end of the electric telescopic rod 7, the position of the fixed plate 1 6 is changed to form suction, the nutrient solution in the liquid tank 2 enters the inside of the adjusting tank 4 through the connecting pipe 3, at this time the depth of the nutrient solution in the liquid tank 2 will be lowered, and the nutrient solution is also flowing during the suction process;

[0027] The rising and lowering time of the electric telescopic rod 7 can be set by the external timing controller, the fixed plate 1 6 can be started in a timing manner, the output end of the fixed plate 1 6 can be raised and lowered in a timing manner, the air flowability of the root system at the bottom of the plant is increased under the condition that the nutrient solution in the liquid tank 2 is not completely separated from the plant root system, ventilation is maintained, and the plant root system can have sufficient oxygen absorption time.

[0028] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and the person skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A deep liquid flow back liquid device for improving the oxygen content of a nutrient solution, comprising a seedbed (1), characterized in that: The inside of the seedbed (1) is provided with a liquid tank (2), the inside of the seedbed (1) is fixedly sleeved with a connecting pipe (3), the top end of the connecting pipe (3) is communicated with the liquid tank (2), the bottom end of the connecting pipe (3) is communicated with a quantity adjusting bin (4), the rear side of the quantity adjusting bin (4) is provided with a gas pressure hole (13), the inside of the quantity adjusting bin (4) is sealingly and slidably connected with a sealing sleeve (5), the inside of the sealing sleeve (5) is fixedly sleeved with a fixed plate one (6), the bottom of the fixed plate one (6) is fixedly connected with an electric telescopic rod (7), the bottom end of the electric telescopic rod (7) is mounted with the bottom of the inner cavity of the quantity adjusting bin (4).

2. The deep-pipe liquid return device for improving the oxygen content of a nutrient solution according to claim 1, characterized in that: The top of the quantity adjusting bin (4) is communicated with an exhaust pipe (8), the inside of the exhaust pipe (8) is mounted with a control valve one (9).

3. The deep-pipe liquid return device for improving the oxygen content of a nutrient solution according to claim 1, characterized in that: The bottom of the inner cavity of the quantity adjusting bin (4) is fixedly connected with two guide rods (10), the surface of the guide rod (10) is slidably connected with a sliding sleeve (11), the surface of the sliding sleeve (11) is fixedly connected with two connecting rods (12) which are fixedly connected with the fixed plate one (6).

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