Ventilation device for plant water culture

Abstract

The invention relates to the technical field of plant hydroponic equipment, and particularly discloses a plant hydroponic ventilation device, comprising: an air inlet assembly comprising a buried pipe arranged in a hydroponic pool and forming a gap with the bottom of the hydroponic pool, and an air inlet pipe arranged outside the hydroponic pool and communicated with the buried pipe, the side wall of the buried pipe being provided with an air guide hole; the impurity removing assembly comprises rotating discs which are symmetrically and rotationally connected with the water culture pond and arranged at the end of the buried pipe in a sleeving mode and a scraping plate which is arranged between the rotating discs and scrapes along the surface of the buried pipe; the driving assembly comprises a conversion box communicated with the air inlet pipe, blades rotationally connected to the interior of the conversion box, an air supply pipe communicated with the end, away from the air inlet pipe, of the conversion box, an air pump arranged on the air supply pipe, and a transmission mechanism arranged between the blades and the rotating disc and driving the rotating disc to rotate. Therefore, the problem that the ventilation device is blocked and the ventilation of the ventilation device in the water culture pond is influenced is solved.

Description

Technical Field

[0001] The present application relates to the technical field of plant hydroponic equipment, and specifically discloses an aeration device for plant hydroponics. Background Art

[0002] During the process of plant hydroponics, it is necessary to regularly aerate the bottom of the hydroponic tank, inject air into the nutrient solution, increase the dissolved oxygen content, and prevent the roots from performing anaerobic respiration due to lack of oxygen, thereby preventing phenomena such as root rot and mildew. And for some plants (such as amphibious plants of the Araceae family), when they have not adapted to the hydroponic environment, their roots lack well-developed aeration tissues and cannot transport oxygen longitudinally through the stems and leaves like aquatic plants. Bottom aeration can simulate the gas exchange process in nature and provide necessary oxygen for the roots.

[0003] Currently, for aerating the bottom of the hydroponic tank, it mainly relies on physical methods (such as air pumps, sprayers, etc.) or mechanical devices (such as spiral blades, stirrers, etc.) to inject air into the hydroponic tank. During the process of hydroponics of plants grown outdoors, impurities, rotten leaves, etc. will inevitably accumulate at the bottom of the hydroponic tank, which not only easily clogs the aeration device, but also affects the quality of the nutrient solution in the hydroponic tank, resulting in the need for regular cleaning or replacement of the nutrient solution. And since impurities, rotten leaves, etc. accumulate at the bottom of the hydroponic tank, it is difficult to clean the nutrient solution and the replacement cost is high. Therefore, in view of this, the present invention provides an aeration device for plant hydroponics to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that impurities and rotten leaves are likely to accumulate at the bottom of the traditional hydroponic tank, resulting in clogging of the aeration device and affecting the aeration of the hydroponic tank.

[0005] To achieve the above purpose, the basic solution of the present invention provides an aeration device for plant hydroponics, including:

[0006] An air intake component, including a buried pipe disposed in the hydroponic tank and forming a gap with the bottom of the hydroponic tank, and an air inlet pipe disposed outside the hydroponic tank and connected to the buried pipe. The side wall of the buried pipe is provided with air guide holes;

[0007] An impurity removal component, including rotating disks symmetrically rotatably connected to the hydroponic tank and sleeved at the ends of the buried pipe, and a scraping plate disposed between the rotating disks and scraping along the surface of the buried pipe;

[0008] A driving component, including a conversion box connected to the air inlet pipe, a blade rotatably connected in the conversion box, a supply pipe connected to the end of the conversion box away from the air inlet pipe, an air pump disposed on the supply pipe, and a transmission mechanism disposed between the blade and the rotating disk and driving the rotating disk to rotate.

[0009] The principle and effect of this basic solution are as follows:

[0010] Compared with the prior art, while the present invention uses an air pump to ventilate the buried pipe to ventilate the cultivation pool, it also utilizes the characteristic that the rated driving kinetic energy of the air pump is usually greater than the kinetic energy required for ventilation, so as to drive the blade to rotate through the flow of gas, and finally drive the rotating disk and the scraper to rotate, thereby scraping off impurities, rotten leaves, etc. on the buried pipe, so as to solve the problem that impurities and rotten leaves are likely to accumulate at the bottom of the traditional hydroponic pool, resulting in blockage of the ventilation device and affecting the ventilation of the hydroponic pool by the ventilation device.

[0011] Furthermore, it further includes a sewage discharge assembly, including a sewage discharge port provided on the inner wall of the hydroponic pool and a sewage discharge pipe communicated with the sewage discharge port. A communication port that is located at the edge of the scraper and can be communicated with the sewage discharge port is provided on the rotating disk. This facilitates the external discharge of the scraped impurities, replaces the traditional process of replacing and cleaning the hydroponic solution, does not require the overall replacement of the hydroponic solution, and reduces the cost of hydroponics.

[0012] Furthermore, a support plate is provided on the side wall of the buried pipe, and the air guide hole is provided on the support plate. The scraper includes a first plate body that scrapes along the side wall of the buried pipe and a second plate body that is provided at the outer end of the first plate body and scrapes along the outside of the support plate. The communication ports are provided on both sides of the first plate body. When the second plate body contacts the support plate, a closed cavity that is communicated with the communication port and the sewage discharge port is formed between the support plate and the first plate body, and the rotating disk reciprocally toggles. Through the mutual cooperation of the first plate body and the second plate body, the impurities scraped by the first plate body and the second plate body accumulate between the first plate body and the second plate body. When the second plate body contacts the support plate, the closed cavity is disconnected from the inside of the hydroponic tank, and the first plate body and the second plate body continue to move, resulting in a reduction in the volume of the closed cavity, so that the scraped impurities are discharged externally through the communication port, the sewage discharge port, and the sewage discharge pipe.

[0013] Furthermore, the sewage discharge port is provided on one side of the hydroponic pool close to the support plate, and the length of the drainage port is greater than the length of the support plate. This facilitates the introduction of the impurities collected between the first plate body and the second plate body into the sewage discharge pipe when the scraper rotates to both ends of the support plate during the reciprocal toggling of the rotating disk.

[0014] Furthermore, when the end of the second plate body contacts the end of the support plate, the communication port is communicated with the sewage discharge port. This facilitates the pushing of impurities from the communication port to the sewage discharge port and the sewage discharge pipe.

[0015] Furthermore, the thickness of the first plate body is greater than the distance between the end of the second plate body and the first plate body. This prevents the communication ports located on both sides of the first plate body from being communicated with each other, resulting in the pushing of impurities from one side of the first plate body to the other side of the first plate body.

[0016] Further, the transmission mechanism includes a cam driven by the blade to rotate, a push rod pushed by the cam, a connecting rod hinged to the end of the push rod, and a runner rotatably connected to the side wall of the hydroponic tank and drivingly connected to the rotating disk. A connecting column eccentrically hinged to the side wall of the runner is provided at the end of the connecting rod. The offset of the cam is between one time and two times the distance between the connecting column and the center of the runner. This facilitates the cam to squeeze the push rod, and drives the runner to reciprocate through the connecting rod and the connecting column, so as to drive the rotating disk and the scraper to reciprocate.

[0017] Further, a speed reducer is provided between the blade and the cam. This enables the rotating disk and the scraper to rotate at a lower speed, preventing the impurities from splashing in the hydroponic tank due to the too fast rotation speed of the scraper.

[0018] Further, a rotating sleeve rotatably and sealingly connected to the outer end of the buried pipe in the hydroponic tank is provided at the end of the rotating disk. A gear pair is provided between the rotating sleeve and the runner. This avoids the interference of the operation of the transmission mechanism with the cooperation between the air inlet pipe and the buried pipe, and ensures the normal operation of the connecting rod and the connecting column at the same time.

[0019] Further, a gear box sleeved on the gear pair is provided on the side wall of the hydroponic tank. An arc-shaped groove allowing the connecting column to slide is provided on the gear box. This plays a role in limiting and guiding the reciprocating movement of the connecting column. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Shows a schematic diagram of an aeration device for plant hydroponics proposed in an embodiment of the present application;

[0022] Figure 2 Shows a schematic diagram of the impurity removal component in an aeration device for plant hydroponics proposed in an embodiment of the present application;

[0023] Figure 3 Shows Figure 2 An enlarged view of part A in

[0024] Figure 4 Shows a schematic diagram of the cooperation between the rotating disk and the sewage outlet in an aeration device for plant hydroponics proposed in an embodiment of the present application;

[0025] Figure 5 Shows a schematic diagram of the driving mechanism in an aeration device for plant hydroponics proposed in an embodiment of the present application;

[0026] Figure 6 The figure shows a schematic diagram of an arc-shaped groove structure in an aeration device for hydroponic plants proposed in an embodiment of the present application. Specific embodiments

[0027] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific embodiments, structures, features, and effects of the present invention as follows.

[0028] Reference numerals in the accompanying drawings of the specification include: hydroponic tank 1, arc-shaped block 2, buried pipe 3, second plate body 4, air supply pipe 5, intake pipe 6, sewage pipe 7, first plate body 8, rotating disk 9, communication port 10, support plate 11, sewage outlet 12, conversion box 13, reduction box 14, cam box 15, push rod 16, connecting rod 17, connecting column 18, connecting pipe 19, gear box 20, arc-shaped groove 21.

[0029] An aeration device for hydroponic plants, as shown in the embodiment Figure 1 includes an air intake component for ventilating the bottom of the hydroponic tank, a impurity removal component for removing impurities from the bottom of the hydroponic tank, a sewage discharge component for discharging the impurities cleaned in the impurity removal component, and a driving component for supplying energy to the air intake component and the impurity removal component.

[0030] Among them, as shown in Figure 1 and Figure 2 the air intake component includes a buried pipe 3 provided in the hydroponic tank 1 and an intake pipe 6 provided outside the hydroponic tank 1 and communicating with the buried pipe 3. The top wall surface of the buried pipe 3 is provided with a support plate 11, and an air cavity communicating with the buried pipe 3 is provided inside the support plate 11. Air guide holes are provided on the side wall and the top of the support plate 11. A plurality of arc-shaped blocks 2 adapted to the buried pipe 3 are uniformly arranged on the inner bottom of the hydroponic tank 1. A gap is formed between the buried pipe 3 and the arc-shaped blocks 2, and the height of the support plate 11 is less than the width of the gap.

[0031] As shown in Figure 2 and Figure 3 the impurity removal component includes a rotating disk 9 rotatably and sealingly connected symmetrically to the inner wall of the hydroponic tank 1 and a scraping plate provided between the rotating disks 9 and scraping along the surface of the buried pipe 3. Among them, the scraping plate includes a first plate body 8 scraping along the side wall of the buried pipe 3 and a second plate body 4 provided at the outer end of the first plate body 8 and scraping along the outside of the support plate 11. Moreover, the outer surface of the second plate body 4 is adapted to the gap between the buried pipe 3 and the arc-shaped blocks 2, and the inner surface of the second plate body 4 is mutually adapted to the outer surface of the support plate 11.

[0032] As shown in Figure 3 and Figure 4As shown in the figure, the sewage discharge assembly includes a sewage discharge port 12 provided on the inner wall of the hydroponic tank 1 and a sewage discharge pipe 7 communicated with the sewage discharge port 12. Among them, the sewage discharge port 12 is located directly above the buried pipe 3 and is mutually adapted to the position of the support plate 11. The length of the sewage discharge port is greater than the length of the support plate 11. The rotating disk 9 is located between the sewage discharge port 12 and the support plate 11 and seals the sewage discharge port 12. Correspondingly, communication ports 10 are provided on the rotating disk 9 on both sides of the first plate body 8. When the communication ports 10 move to the sewage discharge port 12, the communication ports 10 are communicated with the sewage discharge port 12, otherwise the sewage discharge port 12 is sealed by the rotating disk 9. When the end of the second plate body 4 contacts the end of the support plate 11, the thickness of the first plate body 8 is greater than the distance between the end of the second plate body 4 and the first plate body 8, so as to prevent the communication ports 10 on both sides of the first plate body 8 from being mutually conducted due to being connected to the sewage discharge port 12, and further prevent impurities from being pushed from one side of the first plate body 8 to the other side of the first plate body 8.

[0033] During the reciprocating rotation of the rotating disk 9 driving the scraper, the inner wall of the first plate body 8 scrapes the outside of the buried pipe 3, and the second plate body 4 scrapes the outer wall of the gap between the buried pipe 3 and the arc-shaped block 2. The impurities scraped by the first plate body 8 and the second plate body 4 accumulate between the first plate body 8 and the second plate body 4. When the second plate body 4 contacts the support plate 11, the closed cavity is disconnected from the inside of the hydroponic box, and the first plate body 8 and the second plate body 4 continue to move, resulting in a decrease in the volume of the closed cavity, so that the scraped impurities are discharged out through the communication ports 10, the sewage discharge port 12 and the sewage discharge pipe 7.

[0034] As Figure 5 and Figure 6As shown in the figure, the driving assembly includes a conversion box 13 communicated with the intake pipe 6, a blade rotatably connected in the conversion box 13, an air supply pipe 5 communicated with one end of the conversion box 13 away from the intake pipe 6, an air pump arranged on the air supply pipe 5, and a transmission mechanism arranged between the blade and the rotating disc 9 and driving the rotating disc 9 to rotate; wherein, the transmission mechanism includes a reducer box, a cam box 15 connected to each other, a single-stage or multi-stage reducer arranged in the reducer box, and the input end of a cam reducer arranged in the cam box 15 is connected to the blade shaft of the blade, and the output end of the reducer is connected to the cam in the cam box 15; a push rod 16 pushed by the cam is arranged on the side wall of the cam box 15, and a return spring compressed when the push rod 16 moves is arranged between the push rod 16 and the side wall of the cam box 15 so that the end of the push rod 16 is in close contact with the cam; one end of the push rod 16 extends out of the cam box 15 and is provided with a connecting rod 17, and the end of the connecting rod 17 is provided with a connecting column 18; correspondingly, a gear box 20 is arranged on the side wall of the hydroponic tank 1, a gear pair is arranged in the gear box 20, the gear pair includes two gears with equal number of teeth and meshing with each other, a rotating sleeve rotatably and hermetically connected to the end of the buried pipe 3 outside the hydroponic tank 1 is arranged at the end of the rotating disc 9, one of the gears is connected to the rotating sleeve, a connecting pipe 19 communicated with the intake pipe 6 is fixedly arranged between the side wall of the buried pipe 3 outside the hydroponic tank 1 and the gear box 20; the other gear in the gear pair is coaxially connected with a runner arranged in the gear box 20, the connecting column 18 passes through the gear box 20 and is eccentrically hinged to the side wall of the runner, and correspondingly, an arc-shaped groove 21 allowing the connecting column 18 to slide is arranged on the gear box 20.

[0035] As Figure 6 shown in the figure, in this embodiment, the cam rotates to push the push rod 16 to reciprocate, so as to drive the connecting rod 17 and the connecting column 18 to reciprocate and toggle, thereby driving the cam, the gear pair, the rotating sleeve and the rotating disc 9 to reciprocate and toggle. The offset of the cam satisfies the following relational expression:

[0036] e = (1 + cosθ)R

[0037] wherein, e is the offset, R is the distance between the connecting column 18 and the center of the runner, and θ is the included angle between the connecting column 18 and the vertical direction when the connecting column 18 reaches the topmost position.

[0038] Under this structural feature, the cam squeezes the push rod 16, and drives the runner to reciprocate and toggle through the connecting rod 17 and the connecting column 18, so as to drive the rotating disc 9 and the scraper to reciprocate and toggle.

[0039] For the same hydroponic tank, a plurality of air intake assemblies, impurity removal assemblies, sewage discharge assemblies and the gear box 20 in the driving assembly need to be configured, and the horizontally adjacent gear boxes 20 are in transmission connection, so as to drive one or more impurity removal assemblies to operate according to the power of the air pump. Of course, according to the on-site cultivation environment requirements, the driving assembly can also be set to be multiple.

[0040] Compared with the prior art, in this embodiment, while using an air pump to ventilate the buried pipe 3 to ventilate the cultivation pool, the characteristic that the rated driving kinetic energy of the air pump is usually greater than the kinetic energy required for ventilation is also utilized to drive the blades to rotate through the flow of gas, and finally drive the rotating disk 9 and the scraper to rotate, so as to scrape off impurities, rotten leaves, etc. on the buried pipe 3, and discharge the impurities during the scraping process, so as to solve the problem that impurities and rotten leaves are likely to accumulate at the bottom of the traditional hydroponic pool 1, resulting in the blockage of the ventilation device and affecting the ventilation of the hydroponic pool 1 by the ventilation device.

[0041] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any indirect modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An aeration device for hydroponics of plants, characterized in that, Comprising: An intake assembly, including a buried pipe disposed in the hydroponic tank and forming a gap with the bottom of the hydroponic tank, and an intake pipe disposed outside the hydroponic tank and communicating with the buried pipe. The side wall of the buried pipe is provided with air guide holes. An impurity removal assembly, including rotating disks symmetrically rotatably connected to the hydroponic tank and sleeved at the ends of the buried pipe, and scraping plates disposed between the rotating disks and scraping along the surface of the buried pipe. A driving assembly, including a conversion box communicating with the intake pipe, blades rotatably connected in the conversion box, a supply pipe communicating with the end of the conversion box away from the intake pipe, an air pump disposed on the supply pipe, and a transmission mechanism disposed between the blades and the rotating disks and driving the rotating disks to rotate.

2. The aeration device for hydroponics of plants according to claim 1, characterized in that, It further includes a sewage discharge assembly, including a sewage discharge port disposed on the inner wall of the hydroponic tank and a sewage discharge pipe communicating with the sewage discharge port. The rotating disk is provided with a communication port located at the edge of the scraping plate and capable of communicating with the sewage discharge port.

3. The aeration device for hydroponics of plants according to claim 2, characterized in that, The side wall of the buried pipe is provided with support plates, and the air guide holes are disposed on the support plates. The scraping plate includes a first plate body scraping along the side wall of the buried pipe and a second plate body disposed at the outer end of the first plate body and scraping along the outside of the support plate. The communication port is disposed on both sides of the first plate body. When the second plate body contacts the support plate, a closed cavity communicating with the communication port and the sewage discharge port is formed between the support plate and the first plate body, and the rotating disk reciprocally toggles.

4. The aeration device for hydroponics of plants according to claim 3, characterized in that, The sewage discharge port is disposed on one side of the hydroponic tank close to the support plate, and the length of the drainage port is greater than the length of the support plate.

5. The aeration device for hydroponics of plants according to claim 4, wherein When the end of the second plate body contacts the end of the support plate, the communication port communicates with the sewage discharge port.

6. The aeration device for hydroponics of plants according to claim 3, characterized in that, The thickness of the first plate body is greater than the distance between the end of the second plate body and the first plate body.

7. A ventilation device for hydroponics of plants according to any one of claims 3 to 6, characterized in that, The transmission mechanism includes a cam driven to rotate by the blades, a push rod pushed by the cam, a connecting rod hinged to the end of the push rod, and a runner rotatably connected to the side wall of the hydroponic tank and drivingly connected to the rotating disk. The end of the connecting rod is provided with a connecting column eccentrically hinged to the side wall of the runner, and the offset of the cam is between one time and two times the distance between the connecting column and the center of the runner.

8. The aeration device for hydroponics of plants according to claim 7, characterized in that, A speed reducer is disposed between the blades and the cam.

9. The aeration device for hydroponics of plants according to claim 7, characterized in that, The end of the rotating disk is provided with a rotating sleeve rotatably and sealingly connected to the end of the buried pipe outside the hydroponic tank, and a gear pair is disposed between the rotating sleeve and the runner.

10. The aeration device for hydroponics of plants according to claim 9, characterized in that, The side wall of the hydroponic tank is provided with a gear box sleeved on the gear pair, and the gear box is provided with an arc-shaped groove capable of accommodating the sliding of the connecting column.

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