Hydroponic device capable of regulating and controlling salinity concentration for rice salt tolerance experiment

Abstract

The utility model relates to the technical field of agricultural experimental equipment, and discloses a water culture device capable of regulating and controlling salinity concentration for a rice salt tolerance experiment, which comprises a liquid culture device, a culture assembly and a regulating and controlling mechanism. The cultivation assembly comprises a liquid conveying groove, a liquid conveying pipe and a cultivation groove, and the cultivation groove is fixed in the liquid cultivation device. The regulation and control mechanism is arranged between the liquid conveying groove and the liquid conveying pipe in an intervening mode and comprises a support, a first air cylinder, a regulation and control pipe, a rubber ring, a first piston head and a second piston head. The first air cylinder is fixedly installed on the support, the rubber ring is fixedly connected to the tail end of an output rod of the first air cylinder and is slidably sealed in the control pipe, and the first piston head and the second piston head serve as one-way valves and are arranged in the control pipe. A fixing mechanism is further included. The device solves the problems that the volume of added liquid is difficult to accurately control and the device is unstable to place, and has the beneficial effects of accurately pumping and improving the experiment stability.

Description

Technical Field

[0001] This utility model relates to the field of agricultural experimental equipment technology, and in particular to a hydroponic device for rice salt tolerance experiments with adjustable salt concentration. Background Technology

[0002] Salt tolerance experiments in rice are an important method for screening and studying salt-tolerant germplasm resources, and hydroponics is one of the commonly used techniques in this research. During hydroponic experiments, it is necessary to precisely add salt solutions or nutrient solutions of different concentrations to the culture environment to simulate different salt stress conditions.

[0003] In achieving the above experimental objectives, the accuracy of liquid addition is crucial. Currently, the common practice is to manually add liquid using a pipette. This method is labor-intensive and prone to human error, leading to inaccurate liquid volumes and directly affecting the reliability of experimental data.

[0004] To improve automation, some solutions use external peristaltic pumps or syringe pumps to deliver liquids. However, these external pumps are separate from the hydroponic device, resulting in complex piping connections and low system integration. More importantly, residual liquid in the external piping can interfere with the accuracy of volume control, making it difficult to achieve precise and automated regulation of the infusion volume.

[0005] Therefore, this invention proposes a hydroponic device with adjustable salt concentration for rice salt tolerance experiments to address the shortcomings of existing technologies. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a hydroponic device with adjustable salt concentration for rice salt tolerance experiments. It aims to improve the problem that some existing hydroponic devices for rice salt tolerance experiments with adjustable salt concentration rely on manual operation or external pumps for adding liquid (such as salt solution) to the hydroponic device, which leads to cumbersome operation and difficulty in accurately controlling the delivery volume.

[0007] This invention provides a hydroponic device for rice salt tolerance experiments with adjustable salt concentration, comprising: a liquid culture device, a cultivation component; and a control mechanism.

[0008] The cultivation component is located on the outside of the liquid culture device. The cultivation component includes an infusion tank, an infusion tube, and a culture tank. The culture tank is fixed inside the liquid culture device, the infusion tube is connected to the culture tank, and the infusion tank is connected to the infusion tube.

[0009] The control mechanism is installed between the infusion tank and the infusion tube. The control mechanism includes a support, cylinder one, control tube, rubber ring, piston head one, and piston head two.

[0010] Cylinder 1 is fixedly mounted on the bracket. The output rod of cylinder 1 passes through the bracket and extends into the control tube. A rubber ring is fixedly connected to the end of the output rod of cylinder 1 and acts as a piston to slide and seal the inner wall of the control tube.

[0011] Piston head one and piston head two are installed inside the control tube as one-way valves. Piston head two is located between the rubber ring and the infusion tank, and piston head one is located between the rubber ring and the infusion tube.

[0012] Preferably, it also includes a fixing mechanism for detachably fixing the hydroponic device.

[0013] Preferably, the fixing mechanism includes a base, a second cylinder, a chute, a sliding column, and a squeezing plate; the base is used to support the liquid culture device; the second cylinder is fixed to the top of the base; the chute is opened on the base; the squeezing plate is connected to the output end of the second cylinder and is used to squeeze the liquid culture device; the sliding column is fixed to the outside of the squeezing plate and is slidably disposed inside the chute.

[0014] Preferably, the control tube is inserted and fixed inside the bracket, which provides a stable mounting base for the cylinder and the control tube.

[0015] Preferably, the infusion tank is installed on top of the control mechanism, and the infusion tank is used to hold the liquid to be pumped and is connected to the control pipe.

[0016] Preferably, the infusion tube is fixed on the outside of the liquid culture device, with the inlet end of the infusion tube connected to the control tube and the outlet end connected to the culture tank.

[0017] Preferably, cylinder two is fixedly disposed between the slide grooves, and the output axis of cylinder two is parallel to the sliding direction of the slide column.

[0018] Preferably, there are multiple control mechanisms, which are installed side by side on the bracket to control the liquid delivery separately.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model, by setting up a control mechanism, uses a cylinder to drive a rubber ring to slide inside the control tube, and utilizes the one-way valve function of piston head one and piston head two, solves the problem in the prior art that adding liquid (such as salt solution) to hydroponic devices relies on manual operation or an external pump, resulting in cumbersome operation and difficulty in accurately controlling the delivery volume. It achieves the technical effects of precise liquid pumping, automated control of delivery volume, and improved experimental accuracy.

[0021] 2. This utility model solves the problems of unstable placement, susceptibility to external interference, and impact on experimental consistency of liquid culture devices in the prior art by setting up a fixing mechanism, using cylinder two to drive the squeezing plate, and clamping the liquid culture device through the guide cooperation of the sliding column and the sliding groove. It achieves the technical effect of automatic clamping, stable fixing of liquid culture device, and improved experimental stability.

[0022] 3. This utility model solves the problems of separation between the pump structure and the culture device, complex pipelines, and low integration in the prior art by intervening and setting the control mechanism between the infusion tank and the infusion tube and fixing it on the bracket. It achieves the technical effect of compact structure, high integration and easy automatic control. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a hydroponic device for rice salt tolerance experiments with adjustable salt concentration proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the base structure of a hydroponic device for rice salt tolerance experiments with adjustable salt concentration proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the support structure of a hydroponic device for rice salt tolerance experiments with adjustable salt concentration proposed in this utility model.

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0027] Legend:

[0028] 1. Liquid culture apparatus;

[0029] 2. Cultivation components; 21. Infusion tank; 22. Infusion tubing; 23. Cultivation tank;

[0030] 3. Control mechanism; 31. Bracket; 32. Cylinder 1; 33. Control pipe; 34. Rubber ring; 35. Piston head 1; 36. Piston head 2;

[0031] 4. Fixing mechanism; 41. Base; 42. Cylinder II; 43. Slide groove; 44. Slide column; 45. Extrusion plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0033] Reference Figures 1 to 4This utility model provides a hydroponic device for rice salt tolerance experiments with adjustable salt concentration, aiming to solve the problems of existing technologies such as reliance on manual or external pumps for liquid addition, inconvenient operation and difficulty in accurately controlling the delivery volume, and insufficient stability of the experimental device.

[0034] like Figure 1 As shown, the device includes a hydroponic device 1 and a cultivation component 2 disposed outside the hydroponic device 1. The hydroponic device 1 is used to contain rice for hydroponic experiments. The cultivation component 2 is used to deliver liquid into the hydroponic device 1. The cultivation component 2 includes a liquid delivery tank 21, a liquid delivery pipe 22, and a culture tank 23. The culture tank 23 is fixed inside the hydroponic device 1. The liquid delivery pipe 22 is connected to the culture tank 23 and is fixed outside the hydroponic device 1. The liquid delivery tank 21 is connected to the liquid delivery pipe 22.

[0035] Key references Figure 1 , Figure 3 and Figure 4 The control mechanism 3 is installed between the infusion tank 21 and the infusion tube 22 for pumping liquid. The control mechanism 3 includes a bracket 31, a cylinder 32, a control tube 33, a rubber ring 34, a piston head 35, and a piston head 36. The bracket 31 serves as the mounting base. The cylinder 32 is fixedly installed on the bracket 31. The control tube 33 passes through and is fixed inside the bracket 31. The bracket 31 provides a stable mounting base for the cylinder 32 and the control tube 33. The output rod of the cylinder 32 passes through the bracket 31 and extends into the control tube 33. The rubber ring 34 is fixedly connected to the end of the output rod of the cylinder 32. The rubber ring 34 acts as a piston and slides to seal the inner wall of the control tube 33.

[0036] Piston head 35 and piston head 36 are installed inside the control tube 33 as one-way valves. Piston head 36 is located between the rubber ring 34 and the infusion tank 21, and piston head 35 is located between the rubber ring 34 and the infusion tube 22.

[0037] The infusion tank 21 is installed on top of the control mechanism 3. The infusion tank 21 is used to contain the liquid to be pumped and is connected to the control pipe 33. The inlet end of the infusion pipe 22 is connected to the control pipe 33, and the outlet end is connected to the culture tank 23.

[0038] Reference Figure 1 and Figure 2The fixing mechanism 4 includes a base 41, a second cylinder 42, a slide groove 43, a sliding column 44, and a pressing plate 45. The base 41 supports the liquid culture device 1, which is placed on top of the base 41. The slide groove 43 is formed on the base 41. The second cylinder 42 is fixed to the top of the base 41 and is fixedly arranged between the slide grooves 43. The pressing plate 45 is connected to the output end of the second cylinder 42 and is used to press the side wall of the liquid culture device 1 to achieve fixation. The sliding column 44 is fixed to the outside of the pressing plate 45 and slides inside the slide groove 43. The output axis of the second cylinder 42 is parallel to the sliding direction of the sliding column 44. The sliding engagement of the sliding column 44 in the slide groove 43 provides precise guidance for the reciprocating motion of the pressing plate 45, ensuring that the pressing plate 45 can smoothly apply the fixing force, thereby stably fixing the liquid culture device 1.

[0039] The control tube 33 is inserted and fixed inside the bracket 31. The bracket 31 provides a stable mounting base for the cylinder 32 and the control tube 33. The infusion tank 21 is installed on the top of the control mechanism 3. The infusion tank 21 is used to contain the liquid to be pumped and is connected to the control tube 33. The infusion tube 22 is fixed on the outside of the liquid culture device 1. The inlet end of the infusion tube 22 is connected to the control tube 33, and the outlet end is connected to the culture tank 23. The cylinder 42 is fixedly arranged between the slides 43. The output axis of the cylinder 42 is parallel to the sliding direction of the slide column 44. There are multiple control mechanisms 3. Multiple control mechanisms 3 are installed side by side on the bracket 31 to control the liquid delivery separately.

[0040] The implementation principle of this embodiment is as follows: When the operator places the liquid culture device 1 on top of the base 41, cylinder 42 is activated to ensure stability during the experiment. The output end of cylinder 42 pushes the extrusion plate 45 forward, and the extrusion plate 45 applies a clamping force to the liquid culture device 1. During the forward movement of the extrusion plate 45, the sliding column 44 fixed to the outside of the extrusion plate 45 slides within the sliding groove 43 of the base 41. Since the output axis of cylinder 42 is parallel to the sliding direction of the sliding column 44, the sliding groove 43 provides precise guidance for the sliding column 44, ensuring the smooth linear movement of the extrusion plate 45. Through the synergistic effect of cylinder 42 and the sliding groove 43, the liquid culture device 1 is quickly and stably fixed, avoiding displacement caused by vibration or external force during the experiment.

[0041] When a set volume of medicine needs to be delivered to the culture tank 23, the operator activates cylinder 32. Cylinder 32 first pulls backward, causing the rubber ring 34, fixedly connected to the end of the output rod, to slide backward within the control tube 33. Since piston head 35 and piston head 36 act as one-way valves inside the control tube 33, piston head 35 is closed by the negative pressure created by the pullback, while piston head 36 is opened by suction, drawing the medicine from the infusion tank 21 into the control tube 33. After cylinder 32 completes its suction stroke, it pushes forward, causing the rubber ring 34 to slide forward within the control tube 33. Piston head 36 is closed by water pressure, piston head 35 is opened, and the medicine in the control tube 33 is squeezed, flowing through the infusion tube 22 and finally into the culture tank 23. By controlling the stroke of cylinder 32, the volume of medicine pumped each time can be precisely controlled, achieving precise delivery of the medicine volume.

[0042] Multiple control mechanisms 3 are installed side by side on the support 31, and are connected to different infusion tanks 21 and infusion pipes 22 respectively, allowing for the simultaneous and precise delivery of multiple liquids (such as salt solutions and basic nutrient solutions of different concentrations). These liquids are delivered to the culture tank 23 inside the liquid culture device 1 through the infusion pipes 22, achieving the purpose of adding a set volume of liquid to the rice culture environment.

Claims

1. A hydroponic device for rice salt tolerance experiment with adjustable salt concentration, comprising: a liquid culture device (1); a culture assembly (2) arranged outside the liquid culture device (1), the culture assembly (2) comprising a liquid supply tank (21), a liquid supply pipe (22) and a culture tank (23), the culture tank (23) being fixed inside the liquid culture device (1), the liquid supply pipe (22) being connected to the culture tank (23), and the liquid supply tank (21) being connected to the liquid supply pipe (22); characterized in that it further comprises a control mechanism (3); the control mechanism (3) is arranged between the liquid supply tank (21) and the liquid supply pipe (22) for pumping liquid, the control mechanism (3) comprising a bracket (31), a cylinder one (32), a control pipe (33), a rubber ring (34), a piston head one (35) and a piston head two (36), the cylinder one (32) being fixedly installed on the bracket (31), the output rod of the cylinder one (32) penetrating through the bracket (31) and extending into the control pipe (33), the rubber ring (34) being fixedly connected to the output rod of the cylinder one (32) and being used as a piston to slide and seal on the inner wall of the control pipe (33), the piston head one (35) and the piston head two (36) being arranged as one-way valves inside the control pipe (33), the piston head two (36) being located between the rubber ring (34) and the liquid supply tank (21), and the piston head one (35) being located between the rubber ring (34) and the liquid supply pipe (22). 2.The water culture device with adjustable salt concentration for salt tolerance experiment of rice according to claim 1, characterized in that, it further comprises a fixing mechanism (4) for detachably fixing the liquid culture device (1). 3.The water culture device with adjustable salt concentration for salt tolerance experiment of rice according to claim 2, characterized in that, the fixing mechanism (4) comprises a base (41), a cylinder two (42), a sliding groove (43), a sliding column (44) and a pressing plate (45); the base (41) is used for bearing the liquid culture device (1), the cylinder two (42) is fixed on the top of the base (41), and the sliding groove (43) is formed in the base (41); the pressing plate (45) is connected to the output end of the cylinder two (42) and is used for pressing the liquid culture device (1), and the sliding column (44) is fixed on the outside of the pressing plate (45) and is slidably arranged in the sliding groove (43). 4.The water culture device with adjustable salt concentration for salt tolerance experiment of rice according to claim 1, characterized in that, the control pipe (33) penetrates and is fixed in the bracket (31), and the bracket (31) provides a stable mounting base for the cylinder one (32) and the control pipe (33). 5.The water culture device with adjustable salt concentration for salt tolerance experiment of rice according to claim 1, characterized in that, the liquid supply tank (21) is mounted on the top of the control mechanism (3), and is used for containing liquid to be pumped and connected to the control pipe (33). 6.The water culture device with adjustable salt concentration for salt tolerance experiment of rice according to claim 1, characterized in that, the liquid supply pipe (22) is fixed on the outside of the liquid culture device (1), the inlet end of the liquid supply pipe (22) is connected to the control pipe (33), and the outlet end is connected to the culture tank (23).

7. The water culture device with adjustable salt concentration for salt tolerance experiment of rice according to claim 3, characterized in that, the cylinder two (42) is fixedly arranged between the sliding grooves (43), and the output axis of the cylinder two (42) is parallel to the sliding direction of the sliding column (44). 8.The water culture device with adjustable salt concentration for salt tolerance experiment of rice according to claim 1, characterized in that, The number of the regulating mechanisms (3) is multiple, and multiple regulating mechanisms (3) are installed side by side on the support (31) to control liquid delivery respectively.

Images