Automatic nutrient solution supplementing device

Abstract

The utility model relates to the technical field of soilless culture, in particular to an automatic nutrient solution supplementing device which comprises a feeding assembly, a stirring assembly and a control assembly, the feeding assembly comprises a mixing tank, and the mixing tank is connected with an automatic supplementing assembly through a backflow port and a discharging port; the bottom of the left side of each liquid supplementing box is connected with a cultivation assembly through a one-way valve. According to the utility model, the automatic supplementing assembly is arranged, the liquid supplementing pump is used for supplementing the nutrient solution in the material mixing tank into the liquid supplementing box, the overflow pipe is arranged at the top of the liquid supplementing box to ensure that the liquid level in the liquid supplementing box is not changed, and the culture tank and the liquid supplementing box are connected through the one-way valve, so that the nutrient solution in the liquid supplementing box can be automatically supplemented to the culture tank; therefore, the liquid level in the culture tank is always kept stable, and plant rhizomes are always soaked in the nutrient solution; nutrient solution circulation among different culture tanks is achieved by arranging the circulation assembly, and it is guaranteed that the concentrations of nutrient solutions in all the culture tanks are consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of soilless cultivation, in particular to an automatic nutrient solution feeding device. Background Art

[0002] Soilless cultivation is a new crop cultivation technology developed in recent decades. Crops are not cultivated in the soil, but in a water solution (nutrient solution) containing dissolved minerals; or in a certain cultivation medium, using nutrient solution to cultivate crops. Since crops are cultivated without using natural soil, it is called soilless cultivation. Soilless cultivation is free from the restrictions of soil. In places with suitable light and temperature but no soil, such as deserts, beaches, and deserted islands, it can be carried out as long as there is a certain amount of fresh water supply.

[0003] Application No. 202121598379.2 provides an automatic nutrient solution device based on soilless cultivation, including a mixing box and a cultivation box. The left side of the top of the cultivation box is fixedly connected to the mixing box, and the right side of the mixing box is connected to a delivery pipe. The end of the delivery pipe away from the mixing box is connected to the cultivation box, and the surface of the delivery pipe is connected to an electromagnetic valve. The top and bottom of the inner cavity of the cultivation box are fixedly connected to support columns, and the upper pressure sensor and the lower pressure sensor are respectively fixedly connected to the opposite sides of the two support columns.

[0004] The device slides a floating plate on the support column, and the floating plate can move along the support column as the liquid level changes. The upper pressure sensor and the lower pressure sensor are used to detect and determine the liquid level. However, the root lengths of plants vary at different growth stages, and the root lengths of different plants at the same time are also different. Using the upper pressure sensor, the lower pressure sensor and the floating plate to determine the liquid level will result in plants lacking water and nutrient solution in the early stage of cultivation, and some plants lacking nutrient solution and water in the middle stage of cultivation and the harvest period, which will affect the growth and harvest of the plants. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a nutrient solution automatic feeding device.

[0006] The technical solution of the utility model is:

[0007] A nutrient solution automatic feeding device, comprising:

[0008] A feeding assembly, the feeding assembly comprising a mixing tank, the mixing tank being used to mix nutrient solution and water, the top of the mixing tank being provided with a reflux port, the bottom of the rear end of the mixing tank being provided with a discharge port, the mixing tank being connected to an automatic replenishment assembly via the reflux port and the discharge port;

[0009] The automatic replenishment component includes a plurality of liquid replenishment tanks, the top of which is symmetrically provided with overflow pipes and water inlet pipes on both sides, the overflow pipes and water inlet pipes of two adjacent liquid replenishment tanks are connected, the overflow pipe at the front is connected to the reflux port, and the water inlet pipe at the rear is connected to the discharge port, and the bottom left side of the liquid replenishment tank is connected to the cultivation component through a one-way valve;

[0010] The cultivation component comprises a plurality of culture tanks, the top surface of the culture tanks is flush with the lower edge of the overflow pipe, and the culture tanks are connected by a circulation component, and the circulation component is used for circulating nutrient solution between different culture tanks.

[0011] Preferably, a feed inlet is provided on the front side of the top surface of the mixing tank, and the feed inlet is used to feed nutrient solution and water into the mixing tank.

[0012] Preferably, a mixing roller is rotatably installed in the mixing tank, and the head of the mixing roller passes through the mixing tank and is connected to a mixing motor.

[0013] Preferably, the automatic replenishing component also includes a liquid replenishing pump, the liquid inlet of the liquid replenishing pump is connected to the discharge port through a pipeline, and the liquid outlet of the liquid replenishing pump is connected to the water inlet pipe of the liquid replenishing tank on the rear side through a pipeline.

[0014] Preferably, a water outlet pipe is provided at the bottom of the left side of the liquid replenishing tank, the water outlet pipe is connected to the liquid inlet of the one-way valve, and the inner bottom surface of the liquid replenishing tank is flush with the inner lower edge of the water outlet pipe.

[0015] Preferably, a water inlet is provided at the right bottom of the culture tank, the water inlet is connected to the liquid outlet of the one-way valve, and the inner bottom surface of the culture tank is flush with the inner lower edge of the water inlet.

[0016] Preferably, the circulation component includes a circulation pump, both ends of which are connected to circulation pipes, and the circulation pipes connect all the culture tanks in series.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides an automatic replenishing component, utilizes a replenishing pump to replenish the nutrient solution in a mixing tank into a replenishing tank, provides an overflow pipe on the top of the replenishing tank to ensure that the liquid level in the replenishing tank remains unchanged, utilizes a one-way valve to connect a culture tank and the replenishing tank, and the nutrient solution in the replenishing tank can be automatically replenished to the culture tank, thereby ensuring that the liquid level in the culture tank always remains stable, so that the plant roots and stems are always immersed in the nutrient solution; and provides a circulation component to realize the circulation of nutrient solution between different culture tanks, thereby ensuring that the concentration of nutrient solution in each culture tank is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the feeding component in the utility model;

[0021] Figure 3 This is a schematic diagram of the automatic replenishment component structure in the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the cultivation component in the utility model.

[0023] The meaning of each number in the figure is:

[0024] 1. Feeding assembly; 11. Mixing tank; 12. Mixing motor; 13. Mixing roller; 14. Feeding port; 15. Reflux port; 16. Discharging port;

[0025] 2. Automatic replenishment component; 21. Liquid replenishment pump; 22. Liquid replenishment tank; 23. Water inlet pipe; 24. Overflow pipe; 25. Water outlet pipe; 26. One-way valve;

[0026] 3. Cultivation assembly; 31. Bracket; 32. Culture tank; 33. Drain outlet; 34. Water inlet; 35. Circulation pipe; 36. Circulation pump. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1-4 The utility model describes the above technical solution in detail through the following embodiments:

[0031] A nutrient solution automatic feeding device, comprising:

[0032] The feeding component 1 includes a mixing tank 11, which is used to mix nutrient solution and water. A reflux port 15 is welded on the top of the mixing tank 11, and a discharge port 16 is welded on the bottom of the rear end of the mixing tank 11. The mixing tank 11 is connected to an automatic replenishment component 2 through the reflux port 15 and the discharge port 16.

[0033] The mixing tank 11 can be made of a stainless steel tank. The inner lower edge of the discharge port 16 is flush with the inner lower edge of the mixing tank 11. The mixed liquid in the mixing tank 11 can be discharged from the discharge port 16.

[0034] A feed inlet 14 is welded to the front side of the top of the mixing tank 11 .

[0035] The feed inlet 14 is used to feed nutrient solution and water into the mixing tank 11 .

[0036] A mixing roller 13 is rotatably installed in the mixing tank 11 , and the head of the mixing roller 13 passes through the mixing tank 11 and is connected to a mixing motor 12 .

[0037] The mixing motor 12 is fixedly connected to the mixing tank 11 by bolts. The output shaft of the mixing motor 12 is fixedly connected to the mixing roller 13 by a coupling.

[0038] When the mixing motor 12 is working, it can drive the mixing roller 13 to rotate, thereby stirring the mixed liquid in the mixing tank 11 to ensure that the nutrient solution is fully mixed and the concentration is constant.

[0039] The automatic replenishment component 2 includes three liquid replenishment tanks 22. The top of the liquid replenishment tank 22 is symmetrically welded with an overflow pipe 24 and a water inlet pipe 23 on both sides. The overflow pipe 24 and the water inlet pipe 23 of two adjacent liquid replenishment tanks 22 are connected by a pipeline. The overflow pipe 24 at the front is connected to the reflux port 15 through a pipeline. Finally, the water inlet pipe 23 at the rear is connected to the discharge port 16. The bottom left side of the liquid replenishment tank 22 is connected to the cultivation component 3 through a one-way valve 26.

[0040] The liquid replenishing tank 22 can be a plastic box or a stainless steel box, and the top of the liquid replenishing tank 22 is sealed.

[0041] The water inlet pipe 23 is used to inject nutrient solution into the replenishment tank 22. When the nutrient solution level in the replenishment tank 22 exceeds the lower edge of the overflow pipe 24, excess liquid will flow out from the overflow pipe 24 to ensure that the liquid level in the replenishment tank 22 remains unchanged.

[0042] The automatic replenishing component 2 also includes a liquid replenishing pump 21, the liquid inlet of the liquid replenishing pump 21 is connected to the discharge port 16 through a pipeline, and the liquid outlet of the liquid replenishing pump 21 is connected to the water inlet pipe 23 of the liquid replenishing tank 22 at the rear side through a pipeline.

[0043] The liquid replenishment pump 21 is used to pump the mixed nutrient solution in the mixing tank 11 into the liquid replenishment tank 22 at the rear end, and then flow to the water inlet pipe 23 of the next liquid replenishment tank 22 through the overflow pipe 24 until the liquid levels in all the liquid replenishment tanks 22 are consistent. The nutrient solution will flow out from the overflow pipe 24 of the frontmost liquid replenishment tank 22, and then return to the mixing tank 11 from the reflux port 15.

[0044] A water outlet pipe 25 is welded to the bottom of the left side of the liquid replenishment tank 22 , and the water outlet pipe 25 is threadedly connected to the liquid inlet of the one-way valve 26 , and the inner bottom surface of the liquid replenishment tank 22 is flush with the inner lower edge of the water outlet pipe 25 .

[0045] The nutrient solution in the liquid replenishing tank 22 can be discharged through the one-way valve 26 .

[0046] The cultivation assembly 3 includes three culture tanks 32, the top surface of the culture tank 32 is flush with the lower edge of the overflow pipe 24, and the culture tanks 32 are connected by a circulation assembly, which is used for the circulation of nutrient solution between different culture tanks 32. A water inlet 34 is provided at the bottom of the right side of the culture tank 32, and the water inlet 34 is threadedly connected to the liquid outlet of the one-way valve 26, and the inner bottom surface of the culture tank 32 is flush with the inner lower edge of the water inlet 34.

[0047] A bracket 31 is welded to the bottom of the culture tank 32 , and the bracket 31 is used to support the weight of the culture tank 32 and ensure that the top surface height of the culture tank 32 is flush with the lower edge of the overflow pipe 24 .

[0048] When the liquid level of the nutrient solution in the culture tank 32 is lower than the liquid level of the nutrient solution in the replenishing tank 22, there is a pressure difference on both sides of the one-way valve 26. When the pressure difference is greater than the opening pressure of the one-way valve 26, the nutrient solution in the replenishing tank 22 will flow out from the outlet pipe 25, pass through the one-way valve 26, and flow to the culture tank 32 through the water inlet 34.

[0049] At the same time, the one-way valve 26 can prevent the nutrient solution in the culture tank 32 from flowing back into the liquid replenishment tank 22, thereby preventing the nutrient solution in the liquid replenishment tank 22 from being contaminated.

[0050] Since the top surface of the culture tank 32 is flush with the lower edge of the overflow pipe 24, and the liquid level of the nutrient solution in the liquid replenishing tank 22 is flush with the lower edge of the overflow pipe 24, the liquid level in the culture tank 32 is basically maintained at a position close to the top surface of the culture tank 32. The height difference between the liquid level and the top surface of the culture tank 32 is determined by the opening pressure of the one-way valve 26.

[0051] The circulation component includes a circulation pump 36, and both ends of the circulation pump 36 are connected to circulation pipes 35, and the circulation pipes 35 connect all the culture tanks 32 in series.

[0052] When the circulation pump 36 is working, it can pump out the nutrient solution in the front culture tank 32 through the circulation pipe 35, and then pump the nutrient solution to the rear culture tank 32 through the circulation pipe 35. The nutrient solution between two adjacent culture tanks 32 circulates through the circulation pipe 35, thereby ensuring the flow of the nutrient solution in the culture tank 32, so that the concentration of the nutrient solution in each culture tank 32 is the same, and the growth of microorganisms is reduced.

[0053] A drain port 33 is welded to the left side of the culture tank 32 .

[0054] The drain port 33 is used to discharge the nutrient solution in the culture tank 32 to facilitate cleaning of the culture tank 32 .

[0055] When the operator of this embodiment uses the device, the nutrient solution and water are added into the mixing tank 11 through the feed port 14. The mixing motor 12 is started to drive the mixing roller 13 to rotate and stir the mixture of the nutrient solution.

[0056] After the mixing is completed, the liquid replenishing pump 21 is started to pump the nutrient solution in the mixing tank 11 out from the discharge port 16 and then pump it into the rearmost liquid replenishing tank 22 through the water inlet pipe 23 .

[0057] When the liquid level of the nutrient solution in the replenishment tank 22 exceeds the lower edge of the overflow pipe 24, the excess liquid will flow out from the overflow pipe 24, and the nutrient solution flowing out of the overflow pipe 24 will flow to the water inlet pipe 23 of the next replenishment tank 22 until the liquid levels in all the replenishment tanks 22 are consistent. The nutrient solution will flow out from the overflow pipe 24 of the frontmost replenishment tank 22, and then return to the mixing tank 11 from the reflux port 15.

[0058] When the liquid level of the nutrient solution in the culture tank 32 is lower than that in the replenishment tank 22, there is a pressure difference on both sides of the one-way valve 26. When the pressure difference is greater than the opening pressure of the one-way valve 26, the nutrient solution in the replenishment tank 22 will flow out from the outlet pipe 25, pass through the one-way valve 26, and flow to the culture tank 32 through the water inlet 34. At the same time, the one-way valve 26 can prevent the nutrient solution in the culture tank 32 from flowing back into the replenishment tank 22, thereby preventing the nutrient solution in the replenishment tank 22 from being contaminated.

[0059] Since the top surface of the culture tank 32 is flush with the lower edge of the overflow pipe 24, and the liquid level of the nutrient solution in the replenishment tank 22 is flush with the lower edge of the overflow pipe 24, the liquid level in the culture tank 32 is basically maintained at a position close to the top surface of the culture tank 32.

[0060] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A nutrient solution automatic feeding device, characterized in that: include: A feeding assembly (1), the feeding assembly (1) comprising a mixing tank (11), the mixing tank (11) being used to mix nutrient solution and water, the top of the mixing tank (11) being provided with a reflux port (15), the bottom of the rear end of the mixing tank (11) being provided with a discharge port (16), the mixing tank (11) being connected to an automatic replenishment assembly (2) via the reflux port (15) and the discharge port (16); The automatic replenishment component (2) comprises a plurality of liquid replenishment tanks (22), the top of the liquid replenishment tank (22) is symmetrically provided with an overflow pipe (24) and a water inlet pipe (23) running through the front and rear sides, the overflow pipes (24) and the water inlet pipes (23) of two adjacent liquid replenishment tanks (22) are connected, the front overflow pipe (24) is connected to the return port (15), and the rear water inlet pipe (23) is connected to the discharge port (16), and the left bottom of the liquid replenishment tank (22) is connected to the cultivation component (3) through a one-way valve (26); The cultivation component (3) comprises a plurality of culture tanks (32), the top surface of the culture tanks (32) is flush with the lower edge of the overflow pipe (24), and the culture tanks (32) are connected by a circulation component, and the circulation component is used for circulating nutrient solution between different culture tanks (32).

2. The automatic nutrient solution replenishing device according to claim 1, characterized in that: A feed inlet (14) is provided on the front side of the top of the mixing tank (11), and the feed inlet (14) is used to feed nutrient solution and water into the mixing tank (11).

3. The automatic nutrient solution replenishing device according to claim 1, characterized in that: A mixing roller (13) is rotatably mounted in the mixing tank (11), and the head of the mixing roller (13) passes through the mixing tank (11) and is connected to a mixing motor (12).

4. The automatic nutrient solution replenishing device according to claim 1, characterized in that: The automatic replenishment component (2) also includes a liquid replenishment pump (21), the liquid inlet of the liquid replenishment pump (21) is connected to the discharge port (16) through a pipeline, and the liquid outlet of the liquid replenishment pump (21) is connected to the water inlet pipe (23) of the liquid replenishment tank (22) at the rear side through a pipeline.

5. The nutrient solution automatic feeding device according to claim 1, characterized in that: A water outlet pipe (25) is provided at the bottom of the left side of the liquid replenishment tank (22), and the water outlet pipe (25) is connected to the liquid inlet of the one-way valve (26). The inner bottom surface of the liquid replenishment tank (22) is flush with the inner lower edge of the water outlet pipe (25).

6. A nutrient solution automatic feeding device as claimed in claim 5, characterized in that: The right bottom of the culture tank (32) is provided with a water inlet (34), and the water inlet (34) is connected to the liquid outlet of the one-way valve (26). The inner bottom surface of the culture tank (32) is flush with the inner lower edge of the water inlet (34).

7. The nutrient solution automatic feeding device according to claim 1, characterized in that: The circulation component comprises a circulation pump (36), both ends of which are connected to circulation pipes (35), and the circulation pipes (35) connect all the culture tanks (32) in series.

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