Device for improving photosynthesis efficiency of underwater plants

Abstract

The utility model relates to the technical field of water ecological management devices, in particular to a device for improving the photosynthesis efficiency of underwater plants, which comprises a device shell and a flexible light guide device, the top and the bottom of the device shell are of hollow structures, the flexible light guide device is arranged in the device shell, the top of the flexible light guide device is connected with the device shell, and the flexible light guide device is arranged in the device shell. The bottom of the flexible light guide device naturally falls above an underwater plant, the flexible light guide device is used for transmitting sunlight on the water surface to an underwater target area, and the flexible light guide device is made of a flexible light guide material; the fixing mechanism comprises a fixing ring arranged on the device shell and a supporting structure connected with the fixing ring; the supporting structure is used for fixing the whole device on the water surface and allowing the position of the flexible light guide device to be adjusted so as to adapt to the water depth and underwater plant distribution. The device has the advantages that natural light on the water surface is stably transmitted to the deep position of the water body in a low-loss mode, and a stable photosynthesis light source is provided for underwater plants in combination with LED lamplight.

Description

Technical Field

[0001] This utility model relates to the field of water ecological management device technology, specifically a device for improving the photosynthetic efficiency of underwater plants. Background Technology

[0002] Currently, the photosynthetic efficiency of underwater plants is limited by various natural conditions, including insufficient light intensity, unreasonable spectral distribution, and high water turbidity. In existing technologies, underwater plants mainly rely on natural light for photosynthesis, but the intensity of natural light decreases rapidly with increasing water depth, resulting in insufficient light energy for photosynthesis. Furthermore, while some existing artificial light sources can provide illumination, they are not optimized for the specific spectra required for photosynthesis, such as red and blue light, and cannot dynamically adjust the brightness of the light source according to changes in water depth and light intensity. These problems limit the growth and photosynthetic efficiency of underwater plants, especially in turbid water or poor lighting conditions.

[0003] Therefore, in order to optimize lighting conditions and improve the photosynthetic efficiency of underwater plants, it is urgent to design a device to enhance the photosynthetic efficiency of underwater plants, thereby improving light guiding efficiency, reducing light loss, and enhancing the device's flexibility and resistance to environmental interference, adapting to complex underwater environments, and extending the device's service life. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for improving the photosynthetic efficiency of underwater plants, thereby enhancing the photosynthetic efficiency of underwater plants, improving underwater light guiding efficiency, reducing light loss, and strengthening the flexibility and resistance to environmental interference of the device.

[0005] To achieve the above objectives, a device for improving the photosynthetic efficiency of underwater plants is designed, comprising a device shell with a hollowed-out top and bottom; a flexible light guide device disposed inside the device shell, the top of which is connected to the device shell, and the bottom of which hangs naturally above the underwater plants to transmit sunlight from the water surface to the target underwater area; the flexible light guide device is made of a flexible light-guiding material; and a fixing mechanism including a fixing ring on the device shell and a support structure connected to the fixing ring; the support structure is used to fix the entire device on the water surface and allows the position of the flexible light guide device to be adjusted to adapt to the water depth and the distribution of underwater plants.

[0006] Preferably, the present invention further includes: an LED sun lamp provided on the top edge of the device housing.

[0007] Preferably, the present invention further includes: the flexible light guide device is composed of several soft light guide strips, wherein the soft light guide strips are: a glass optical fiber bundled structure, or a composite structure of an acrylic inner core and a fluororesin outer layer.

[0008] Preferably, the present invention further includes: a mounting plate disposed on the upper part of the inner cavity of the device housing, the mounting plate having through holes matching the number of flexible light guide strips.

[0009] Preferably, the present invention further includes: the flexible light guide strip is connected to the through hole of the mounting plate through a conical sealing sleeve.

[0010] Compared with the prior art, the advantages of this utility model are:

[0011] By utilizing the principle of total internal reflection through flexible light-guiding materials, light is efficiently transmitted to the deep water body in a low-loss manner, providing a stable light source for underwater plants to photosynthesize. At the same time, the device adopts shore-based poles or off-shore support structures to adapt to different water depths, water levels and terrains. With the addition of a conical sealing sleeve waterproof design, the flexible light-guiding materials are stably installed, extending the service life of the device and achieving uniform light coverage in the water body, thereby increasing the photosynthetic rate and accelerating the biomass of submerged plants in turbid waters. Attached Figure Description

[0012] Figure 1 1 is a perspective view of one side of the embodiment;

[0013] Figure 2 This is a top perspective view of Embodiment 1;

[0014] Figure 3 This is a side perspective view of Embodiment 2;

[0015] Figure 4 This is a top perspective view of Embodiment 2;

[0016] In the picture: 1. Pole, 2. Fixing ring, 3. Device shell, 4. Flexible light guide device, 5. Support rod, 6. LED sun lamp, 7. Mounting plate, 8. Shore, 9. Bank protection, 10. Power supply line, 11. Underwater plants, 12. Bottom mud, 13. Water surface. Detailed Implementation

[0017] To make the purpose, principle and structure of this utility model clearer, the following description is provided in conjunction with the accompanying drawings and specific embodiments.

[0018] This invention provides a device for improving the photosynthetic efficiency of underwater plants, including two embodiments: a shore-fixed method and a non-shore-fixed method.

[0019] This invention relates to a device that efficiently transmits sunlight underwater via a flexible light-guiding material, thereby improving the photosynthetic efficiency of underwater plants 11. The device utilizes the flexible light-guiding material as its core component to transmit sunlight from the water surface to the target underwater area. The flexible light-guiding material employs a high light transmittance material combined with a coating design to minimize light scattering and absorption during transmission, ensuring efficient light energy transfer. Specifically, an anti-reflective coating can be formed by depositing a film onto the light-guiding material. This coating can be made of high-refractive-index materials such as titanium dioxide or tantalum pentoxide.

[0020] Flexible light guide materials have good flexibility and adjustability, and the installation position can be flexibly adjusted according to the distribution of underwater plants 11 and water depth to achieve uniform light distribution.

[0021] The device can also be equipped with an LED sun lamp 6 to ensure that it can still provide sufficient light for underwater plants even when sunlight is severely insufficient. Compared with conventional LED lamps, the LED sun lamp 6 mainly promotes plant photosynthesis by precisely controlling the spectrum, light intensity, and photoperiod. By setting red and blue light, which perform better in the plant absorption peak zone, and increasing far-red and ultraviolet light, it simulates the full spectrum closer to natural sunlight, thereby improving the efficiency of plant photosynthesis.

[0022] Through this optimized design, the present invention can significantly improve the photosynthetic efficiency of underwater plants, while adapting to different water environments and light conditions, and has broad prospects for ecological restoration and artificial planting applications.

[0023] Example 1: A device fixed on the shore to improve the photosynthetic efficiency of underwater plants.

[0024] See Figure 1 , 2 .

[0025] The support structure includes several uprights 1. Two uprights 1 are driven vertically into the bottom of the water near the shore. Preferably, the uprights 1 are made of corrosion-resistant metals such as stainless steel or high-strength engineering plastics, and their length is adjusted according to the water depth to ensure that the top of the uprights 1 extends above the water surface 13.

[0026] The device housing 3 is formed by four side walls, with open top and bottom. An LED sun lamp 6 is installed on the inner side of the top edge of the device housing 3, which is activated when natural light is insufficient. Preferably, the side walls of the device housing 3 can be made of a light-transmitting material.

[0027] The fixing ring 2 is fixedly installed on the outer casing 3 of the device and can be locked and fixed using bolts or clamps. The fixing ring 2 is put on the upright 1, and the upright 1 and the fixing ring 2 are locked with bolts or clamps to ensure the overall stability of the fixing foundation of the outer casing 3.

[0028] The device housing 3 has a hollow cavity with a mounting plate 7, which is fixed to the lower side of the LED sun lamp 6.

[0029] The top of the flexible light guide device 4 is fixed to the mounting plate 7 inside the device housing 3. The flexible light guide device 4 is made of several soft light guide strips of flexible light guide material. Preferably, the flexible light guide device 4 can be a glass fiber bundle or a composite structure with an acrylic core and a fluorinated resin outer layer.

[0030] The mounting plate 7 has a number of through holes, the number of which matches the number of soft light guide strips in the flexible light guide device 4. The light guide strips are sealed to the through holes through conical sealing sleeves, and their bottoms naturally hang into the water. The ends of the light guide strips are close to the underwater plants 11 and do not contact the bottom mud 12.

[0031] The conical sealing sleeve has a gradually narrowing conical through-hole. The light guide strip is inserted into the conical through-hole and fixed by an interference fit between the light guide strip and the conical through-hole. As the conical through-hole gradually narrows, it creates a uniform circumferential compression deformation on the light guide strip, which has a constant diameter, thus producing an interference fit between them. Under the action of the interference fit, the light guide strip and the conical sealing sleeve generate a large static friction force, preventing water flow from washing away the light guide strip and separating it from the mounting plate 7. The connection between the light guide strip and the mounting plate 7 uses a conical sealing sleeve with an inner diameter matching the light guide strip and an outer diameter that is interference-fitted with the through-hole to ensure waterproofing.

[0032] Preferably, the conical sealing sleeve and the mounting plate 7 can be fixed by glue injection or ultrasonic welding.

[0033] Preferably, the light guide strip can also be directly fixed in the through hole of the mounting plate 7 by means of glue injection or other methods.

[0034] The wiring of the LED sun lamp 6 is led out of the housing 3 through a waterproof connector and connected to an external power supply system.

[0035] Preferably, the power supply system can be a solar power supply system, or it can be connected to the shore 8 via power supply line 10.

[0036] Example 2: A non-shore-fixed device for improving the photosynthetic efficiency of underwater plants.

[0037] See Figure 3 , 4 .

[0038] The support structure comprises a metal frame structure consisting of several uprights 1 and support rods 5, which is inserted into the bottom sediment 12. Preferably, the metal frame structure consisting of the uprights 1 and support rods 5 is made of stainless steel. Preferably, the metal frame structure has a square base, and the height of the support rods 5 on the uprights 1 is adjustable to adapt to different water depths and water levels 13.

[0039] The device housing 3 is formed by four side walls, with open top and bottom. An LED sun lamp 6 is installed on the inner side of the top edge of the device housing 3. The LED sun lamp 6 is activated when natural light is insufficient, and the light from the LED sun lamp 6 shines downwards. Preferably, the side walls of the device housing 3 can be made of a light-transmitting material.

[0040] The fixing ring 2 is fixedly installed on the outer casing 3 of the device and can be locked and fixed using bolts or clamps. The fixing ring 2 is put on the upright 1, and the upright 1 and the fixing ring 2 are locked with bolts or clamps to ensure the overall stability of the fixing foundation of the outer casing 3.

[0041] The device housing 3 has a hollow cavity with a mounting plate 7, which is fixed to the lower side of the LED sun lamp 6.

[0042] The top of the flexible light guide device 4 is fixed to the mounting plate 7 inside the device housing 3. The flexible light guide device 4 is made of several soft light guide strips of flexible light guide material. Preferably, the flexible light guide device 4 can be a glass fiber bundle or a composite structure with an acrylic core and a fluorinated resin outer layer.

[0043] The mounting plate 7 has a number of through holes, the number of which matches the number of flexible light guide strips in the flexible light guide device 4. The light guide strips are sealed to the through holes via conical sealing sleeves, with their bottoms naturally dangling into the water. The ends of the light guide strips are close to the underwater plants 11 and do not contact the bottom sediment 12. Preferably, the bottom of the light guide strips extends above the canopy of the underwater plants 11, with a certain gap between them.

[0044] The conical sealing sleeve has a gradually narrowing conical through-hole. The light guide strip is inserted into the conical through-hole and fixed by an interference fit between the light guide strip and the conical through-hole. As the conical through-hole gradually narrows, it creates a uniform circumferential compression deformation on the light guide strip, which has a constant diameter, thus producing an interference fit between them. Under the action of the interference fit, the light guide strip and the conical sealing sleeve generate a large static friction force, preventing water flow from washing away the light guide strip and separating it from the mounting plate 7. The connection between the light guide strip and the mounting plate 7 uses a conical sealing sleeve with an inner diameter matching the light guide strip and an outer diameter that is interference-fitted with the through-hole to ensure waterproofing.

[0045] Preferably, the conical sealing sleeve and the mounting plate 7 can be fixed by glue injection or ultrasonic welding.

[0046] Preferably, the light guide strip can also be directly fixed in the through hole of the mounting plate 7 by means of glue injection or other methods.

[0047] The wiring of the LED sun lamp 6 is led out of the housing 3 through a waterproof connector and connected to an external power supply system.

[0048] Preferably, the power supply system can be a solar power supply system, or it can be connected to the shore 8 via power supply line 10.

[0049] The upright pole 1 and the support pole 5 are telescopic and adjustable to adapt to changes in the water level 13; the flexible light guide device 4 is flexible and allows it to sway slightly with the wind and waves, avoiding breakage.

[0050] Preferably, all metal parts are sprayed with an anti-corrosion coating, and the surface of the outer casing 3 is coated with an anti-bioadhesion material.

[0051] It is worth noting that:

[0052] Preferably, the LED sun lamp 6 uses blue and red light as the main peak wavelengths for photosynthesis, and the brightness is automatically adjusted by a light sensor to ensure light intensity.

[0053] Flexible light guiding materials utilize the principle of total internal reflection to transmit light: light undergoes multiple reflections within the glass fiber or acrylic core, resulting in high transmittance and low energy loss. They possess a certain refractive index; when light enters the material from within at an angle greater than the critical angle, total internal reflection occurs, allowing light to propagate continuously along a specific path within the material. To prevent interference from surrounding elements, the optical uniformity of the material itself is crucial; high-quality materials with few impurities ensure stable light transmission. Furthermore, reflective or shielding layers, such as metal coatings, are placed on the outside of the material to block external light from entering and internal light leakage, reducing the impact of external interference on the light transmission process. This overcomes the rectilinear propagation characteristic of light, achieving a flexible and efficient light guiding effect.

[0054] The height of the LED sun lamp 6 is higher than the top of the light guide strip. Both natural light and the light from the LED sun lamp 6 can be emitted from the top and bottom of the light guide strip. Because the bottom of the light guide strip is set underwater, it can efficiently transmit light directly to the depths of the water, reducing light energy loss caused by refraction and diffuse reflection in the water. Underwater plants 11 at depths can be exposed to more light, absorb more light energy, and have higher photosynthetic efficiency.

[0055] The shore-fixed method is suitable for shallow water areas near the shore and is easy to install; the non-shore-fixed method adapts to deep water areas through adjustable support rod 5 and has strong stability; both methods achieve efficient transmission of sunlight and improve light guiding efficiency, significantly increasing the photosynthetic rate of underwater plants.

[0056] A stable power supply can be achieved by setting the power supply system inside the revetment 9 on the shore 8, away from the water surface 13, and connecting it to the LED sun lamp 6 using the power supply line 10.

[0057] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and novel concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A device for improving the photosynthetic efficiency of underwater plants, characterized in that, The device includes a housing (3), the top and bottom of which are hollow structures; a flexible light guide device (4), which is disposed inside the housing (3), the top of which is connected to the housing (3), and the bottom of which hangs down naturally above the underwater plants to transmit sunlight from the water surface to the underwater target area; the flexible light guide device (4) is made of flexible light guide material; and a fixing mechanism, including a fixing ring (2) disposed on the housing (3) and a support structure connected to the fixing ring (2); the support structure is used to fix the entire device on the water surface and allows the position of the flexible light guide device (4) to be adjusted to adapt to the water depth and the distribution of underwater plants.

2. The apparatus as claimed in claim 1, characterized in that, The device housing (3) has an LED sun lamp (6) on its top edge.

3. The apparatus as described in claim 1, characterized in that, The flexible light guide device (4) is composed of several soft light guide strips, which are: a glass fiber bundle structure or a composite structure of an acrylic inner core and a fluororesin outer layer.

4. The apparatus as described in claim 3, characterized in that, It also includes a mounting plate (7) located on the upper part of the inner cavity of the device housing (3), and the mounting plate (7) has through holes matching the number of soft light guide strips.

5. The apparatus as described in claim 4, characterized in that, The flexible light guide strip is connected to the through hole of the mounting plate through a tapered sealing sleeve.

Images