A rain-proof cup for acerola flowering

Abstract

The utility model discloses a kind of yunwei fruit flowering rainproof sleeve cups, including sleeve cup main body, bottom exhaust hole, round corner structure, fixed assembly, the lower end of the sleeve cup main body is equipped with at least 3 bottom exhaust holes, the bottom exhaust hole is evenly arranged with equal angle with the lower end center of sleeve cup main body as circle center, the upper end opening edge of the sleeve cup main body is equipped with round corner structure, sleeve cup main body lower end outside is equipped with fixed assembly, and the fixed assembly includes elastic fixing belt and buckle.The utility model is made of food-grade PP / PE material in sleeve cup, portable transparent, weather resistance is strong, can completely wrap flower and block rainwater scouring, form convection heat dissipation by hole cooperation, avoid heat injury flower, and fixed assembly can prevent wind blow off.It is strong in structural adaptability, convenient to use, effectively solve the pollen inactivation problem caused by rainwater during yunwei fruit flowering period, improve pollination rate and fruit setting rate, reduce planting cost, suitable for yunwei fruit large-scale planting.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for fruit tree planting, specifically to a rainproof cup designed for the flowering period of bird's nest fruit, used to protect bird's nest fruit flowers from rain and ensure the smooth progress of pollination. Background Technology

[0002] Kiwano, also known as dragon fruit or horned melon, is a perennial vine belonging to the genus *Hylocereus* in the family Cactaceae. Native to tropical Central and South America, it has recently been cultivated on a large scale in tropical and subtropical regions of my country, including Hainan, Guangdong, Guangxi, and Fujian. The fruit is oval-shaped with a brightly colored peel and translucent flesh. Rich in vitamin C, dietary fiber, plant albumin, and various minerals, it has a sweet and creamy taste, combining edible and nutritional value. With a high market price and significant economic benefits, it has become an important cash crop for growers.

[0003] However, the cultivation of bird's nest fruit faces many technical challenges, among which pollination during the flowering period directly restricts the improvement of yield and economic benefits. Bird's nest fruit has unique flowering characteristics; its flowering period is extremely short, with each flower only open for 1-3 days, mostly concentrated from night to the following morning. Pollination mainly relies on natural pollination by insects such as bees and butterflies. Some growers use artificial pollination as an aid, but artificial pollination is costly and highly dependent on weather conditions.

[0004] The climate characteristics of the growing region of *Acer negundo* (bird's nest fruit) have a particularly significant impact on flowering and pollination. In tropical and subtropical regions, spring to summer is the main flowering period for *Acer negundo*. During this period, rainfall is frequent, with frequent showers and heavy rains. The adverse effects of rain on pollination of *Acer negundo* are mainly reflected in three aspects: First, rainwater directly washes away the stigma and pollen of the flowers, resulting in a large loss of pollen. At the same time, after the stigma is soaked by rainwater, pollen is difficult to adhere to, directly reducing the pollination success rate. Second, rainwater causes a sharp increase in the humidity of the air around the flowers. When the humidity exceeds 85%, the pollen is prone to absorb water, swell, and become inactive. In addition, the high humidity environment is conducive to the growth of mold and bacteria, causing flower diseases and further damaging the pollination conditions. Third, if the flowers are exposed to direct sunlight after rainfall, the surface of the flowers that have not dried in time will form a localized high temperature and high humidity environment, accelerating pollen inactivation and even causing the petals to wither and fall off.

[0005] In addition to the impact of rainfall, the high daytime temperatures in tropical regions also negatively affect pollination. The suitable temperature range for pollination of arugula is 20-30℃. When the ambient temperature exceeds 32℃, pollen activity will decrease significantly. If the flowering period is accompanied by sustained high temperatures, even without rainfall, the fruit set rate will be reduced.

[0006] To solve the above problems, farmers tried various rain protection measures, but all of them had obvious drawbacks:

[0007] 1. Constructing a rain shelter: A rain shelter is constructed using a steel frame structure combined with plastic film or shade netting to cover the entire planting area. While this method offers good rain protection, it has significant drawbacks: First, the construction cost is high, reaching tens of thousands of yuan per acre, making it unaffordable for small-scale growers. Second, it lacks flexibility; the fixed structure prevents adjustments based on individual plant flowering conditions, and poor ventilation creates a hot and humid environment that negatively impacts pollen activity. Third, it hinders insect pollination; the rain shelter blocks bees and other pollinating insects, reducing natural pollination rates and requiring additional costs for artificial pollination.

[0008] 2. Using ordinary plastic bags or films for wrapping: Growers cut ordinary food-grade plastic bags or agricultural films and wrap them around the flowers. This method is extremely low-cost, but it has fatal flaws: First, it has extremely poor air permeability. The plastic bags are completely airtight, and under sunlight during the day, the temperature inside the bag rises rapidly, creating a "greenhouse effect" with temperatures reaching 38-45℃, far exceeding the suitable temperature for pollination of the bird's nest fruit. This causes the pollen to quickly become inactive and may even scorch the petals and pedicels, causing the flowers to wither. Second, it has poor fixation. The plastic bags are smooth and lack a special fixing structure, making them easy to be blown off by the wind and unable to maintain a long-term rainproof effect. Third, it easily damages the flowers. The edges of ordinary plastic bags are sharp, which can easily scratch the petals and stigma during the application and removal process. In addition, the material is relatively hard and has poor adhesion, which can squeeze the flowers and affect the normal development of the flower parts.

[0009] 3. Learning from Rain Protection Devices for Other Fruit Trees: Some growers have tried using rain protection devices from lychee, mango, and other fruit trees during their flowering period. However, due to significant differences between the flowers of *Amur cordata* and those of other fruit trees, the devices are poorly adapted. *Amur cordata* flowers are relatively large, typically 3-5 cm in diameter, with petals that spread widely, and slender pedicels only 0.3-0.5 cm in diameter, making them less capable of bearing weight. In contrast, lychee and mango flowers are smaller with thicker pedicels. Their rain protection devices are either too small to cover the flowers or too heavy (often made of hard plastic or metal), easily damaging the slender pedicels, hindering nutrient transport, and causing the flowers to wither.

[0010] 4. Spraying Waterproofing Agents: Some growers use chemical waterproofing agents to form a waterproof film on the flower surface to prevent rainwater from washing away the flowers. However, this method has many problems: First, the waterproofing agents may contain chemical components that are harmful to pollen and fruit, affecting pollen activity and fruit quality, which is inconsistent with the concept of green agriculture development; second, the waterproof film will hinder pollen dispersal, affecting the effectiveness of insect pollination and artificial pollination; third, the effect of waterproofing agents is short-lived, and re-spraying is required after rainfall, which is cumbersome and increases planting costs.

[0011] 5. Bagging after artificial pollination: After artificial pollination at night or in the early morning, growers immediately cover the flowers with paper or cloth bags. However, this method has the following drawbacks: First, artificial pollination is costly. The flowering time of the bird's nest fruit is concentrated and the flowering period is short, requiring a large amount of manpower to pollinate at night, which is labor-intensive. Second, the timing of bagging is difficult to grasp. If the bags are covered immediately after pollination, the humidity inside the bags is high, which can easily lead to pollen inactivation. If the bagging is delayed, it may be affected by rain, which will affect the pollination effect. Third, although paper bags are more breathable than plastic bags, they are less effective at preventing rain. Rainwater can easily penetrate the paper bags and cannot effectively protect the pollen.

[0012] In summary, existing technologies lack a rainproof device specifically designed for the characteristics of bird's nest fruit flowers. Current measures are either costly and inflexible, or ineffective at preventing rain damage, easily harming flowers, and affecting pollen activity. They fail to simultaneously meet the core requirements of "good rainproof effect, excellent ventilation and heat dissipation, ease of use, low cost, and strong adaptability." Therefore, developing a structurally sound and high-performance rainproof cup for bird's nest fruit flowers to overcome the shortcomings of existing technologies is of great significance for improving the pollination and fruit setting rates of bird's nest fruit, reducing planting costs, and enhancing economic benefits. Utility Model Content

[0013] In view of the problems of poor rain protection effect, poor ventilation and heat dissipation, easy damage to flowers, high cost and poor adaptability of existing rain protection measures during the flowering period of bird's nest fruit, this utility model provides a rain protection cup sleeve for bird's nest fruit flowering.

[0014] To achieve the above objectives, the present invention adopts the following technical solution:

[0015] A rainproof cup sleeve for bird's nest fruit blossoms includes a cup body, bottom ventilation and heat dissipation holes, rounded corner structure, and fixing components. The lower end of the cup body has at least three bottom ventilation and heat dissipation holes, which are evenly distributed at equal angles with the center of the lower end of the cup body as the center. The upper opening edge of the cup body has a rounded corner structure. The fixing components are provided on the outer side of the lower end of the cup body. The fixing components include elastic fixing straps and buckles. The elastic fixing straps include a first elastic fixing strap and a second elastic fixing strap. The buckles are a male buckle and a female buckle, which are respectively fixed to the first elastic fixing strap and the second elastic fixing strap.

[0016] Furthermore, the main body of the cup is a hollow, trumpet-shaped structure with an open top and a closed bottom.

[0017] Furthermore, the main body of the cup is made of transparent or semi-transparent food-grade polypropylene or polyethylene material, and the thickness of the main body of the cup is 0.3-0.8mm.

[0018] Furthermore, the number of exhaust heat dissipation holes is 3, the central angle between two adjacent exhaust heat dissipation holes is 120°, the exhaust heat dissipation holes are circular, and the hole diameter is 2-5mm.

[0019] Furthermore, the shape of the bottom exhaust and heat dissipation holes can be any one of a circle, a square, or a regular polygon.

[0020] Furthermore, the radius of the rounded corner structure is 0.2-0.5 mm.

[0021] Furthermore, both the first and second elastic fixing bands are made of food-grade rubber material, each with a width of 6mm and a thickness of 0.3mm.

[0022] Furthermore, the feature is that at least two side wall exhaust and heat dissipation holes are provided on the side wall of the cup body, and the side wall exhaust and heat dissipation holes are circular with a diameter of 10-12mm.

[0023] Furthermore, the outer surface of the cup body is provided with a light-colored coating, which is a white or light gray reflective coating.

[0024] Furthermore, a transparent observation window is provided on the side wall of the main body of the cup, and the area of ​​the observation window is 1 / 4 to 1 / 2 of the total area of ​​the side wall of the main body of the cup.

[0025] The technical principle of this utility model's rainproof cup cover for flowering bird's nest fruit is as follows:

[0026] The technical principle of this utility model revolves around the core needs of bird's nest fruit during its flowering period (rain protection, pollen preservation, flower protector, and ease of use). Combining fundamental principles of fluid mechanics, materials science, structural mechanics, and optics, it achieves multiple functions synergistically through targeted structural and material design, as detailed below:

[0027] I. Rainproof Protection Principle: Physical Barrier + Surface Tension Synergy

[0028] 1. Physical spatial barrier principle: The main body of the cup adopts a hollow structure with "open at the top and closed at the bottom" and its size is adapted to the flowers of the bird's nest fruit. It can completely wrap the flowers to form an independent protective space. Through physical shielding, it directly blocks rainwater from washing away the stigma and pollen, avoiding pollen loss and stigma soaking, and cutting off the direct interference of rainwater on pollination from the space.

[0029] 2. Liquid surface tension water control principle: The diameter of the bottom exhaust and heat dissipation holes is limited to 2-5mm. This size utilizes the surface tension characteristics of water. When rainwater splashes onto the hole, the surface tension causes water molecules to form a thin film, which cannot penetrate the small hole and enter the inside of the cup. Air molecules, due to their extremely small particle size, can freely pass through the holes, achieving the core effect of "breathable but not leaky", thus solving the contradiction between "rainproof and ventilation".

[0030] II. Ventilation and heat dissipation principle: air convection + thermal radiation regulation

[0031] 1. Convection cooling principle: A three-dimensional ventilation structure consisting of an upper opening gap, side wall exhaust vents, and bottom exhaust vents creates an "upper in, lower out" air convection channel. External cool air enters through the gap between the upper opening and the flower shape, and through the side wall exhaust vents, carrying hot air from inside the cup out through the evenly distributed exhaust vents at the bottom, forming natural convection and rapidly dissipating heat to avoid the "greenhouse effect." Simultaneously, the three exhaust vents are evenly distributed at 120° angles to ensure uniform airflow within the cup, eliminating localized heat accumulation dead zones.

[0032] 2. Thermal radiation reflection principle: The white / light gray reflective coating on the outer surface of the cup, based on the principle of optical reflection, can reflect more than 60% of the short-wave solar radiation, reducing the absorption of solar heat energy by the cup; combined with the transparent / semi-transparent PP / PE substrate, it allows some sunlight to pass through for the flowers to photosynthesize, while avoiding the substrate absorbing heat and causing a sudden rise in internal temperature, achieving "light transmission without heat accumulation", ensuring that the temperature inside the cup is maintained within the suitable range for pollination of bird's nest fruit (20-30℃).

[0033] III. Structural Adaptation Principle: Shape Matching + Force Balance

[0034] 1. Biomimetic Adaptation Principle: The main body of the cup is designed in a trumpet shape, with a large opening at the top (suitable for the 3-5cm diameter open flower of the bird's nest fruit) and a narrowing at the bottom (suitable for the slender flower stem with a diameter of 0.3-0.5cm). This perfectly fits the "funnel-shaped" shape of the bird's nest fruit flower and the slender structure of the flower stem, which avoids squeezing the petals due to the small size and reduces the gap between the flower stem and the cup, thus improving rainproof sealing.

[0035] 2. Lightweight load-bearing principle: Utilizing materials with a density of only 0.9-0.95 g / cm³ 3 Made of food-grade PP / PE material, the weight of a single cup is controlled at 5-15g. Combined with a thin design of 0.3-0.8mm, based on the principle of gravity balance, it ensures that the weight of the cup is far below the load-bearing limit of the flower stem (tested, the flower stem of bird's nest fruit can withstand a weight of more than 50g), avoiding damage to the flower stem and thus preventing nutrient transport from being blocked.

[0036] 3. Elastic Deformation Adaptation Principle: The flexibility of the cup substrate and the elastic deformation characteristics of the elastic fixing band can adapt to the morphological changes during the opening process of the flower (the petals expand more) and the differences in the thickness of different flower stems (0.3-0.5cm). During the installation and fixing process, slight deformation avoids scratching the petals or damaging the flower stems, ensuring the normal development of the flower.

[0037] IV. Fixation and Anti-Drop Principle: Elastic Constraint + Friction Locking

[0038] The fixing component adopts a "elastic fixing strap + adjustable buckle" design, based on the principles of elastic constraint and friction: the food-grade rubber fixing strap has good elastic recovery and generates a moderate radial constraint force when it wraps around the flower stem; the buckle adjusts the tightness of the fixing strap to form a stable static friction force between the fixing strap and the surface of the flower stem. This friction force is greater than the force exerted by the wind on the cup (the gust of wind in tropical regions usually corresponds to a tensile force of 1-3N, while the static friction force of the fixing strap can reach more than 5N), ensuring that the cup will not fall off in windy weather. At the same time, the elastic design avoids excessive constraint from affecting the nutrient transport of the flower stem.

[0039] V. Mechanical Protection Principle: Edge Passivation + Flexible Contact

[0040] The rounded corner structure (radius 0.2-0.5mm) at the top opening of the cup is based on the "edge blunting" principle in mechanical design, which turns sharp edges into smooth arcs to avoid mechanical scratches to the delicate petals and stigma during the process of putting on and taking off the cup. At the same time, the flexible nature of PP / PE material makes the contact between the inner wall of the cup and the flower flexible rather than rigid, further reducing the risk of damage to the flower.

[0041] VI. Visual Management Principle: Optical Transmission + Partial Transparency Design

[0042] The main body of the cup is made of transparent / semi-transparent substrate, and the observation window on the side wall is designed to be fully transparent. Based on the principle of optical transmission, growers can clearly observe the opening status of the flowers and the pollination status of the stigma (such as color changes) without disassembling the cup. This reduces damage to the flower parts caused by frequent disassembly, improves planting management efficiency, and does not affect the core functions of the cup, such as rain protection and ventilation.

[0043] VII. Durable and environmentally friendly principle: material stability + recyclability

[0044] 1. Material weather resistance principle: Food-grade PP / PE material has excellent weather resistance - it is resistant to ultraviolet aging (it can be used stably for 3-5 growing seasons under the annual ultraviolet radiation intensity in tropical regions), high temperature resistance, and acid and alkali corrosion resistance (it can resist minor pesticide residues and rainwater erosion in orchards), ensuring stable performance when the cups are reused.

[0045] 2. Green and environmentally friendly principle: The material itself is non-toxic and harmless, meets food-grade standards, and will not release harmful substances into flowers and fruits; it can be reused for 3-5 growing seasons, reducing the waste of disposable consumables, reducing environmental pollution during the planting process, and conforming to the concept of green agricultural development.

[0046] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0047] 1. Excellent rainproof performance, ensuring a stable pollination environment and improving pollen survival rate. The main body of this utility model's sleeve cup adopts a trumpet-shaped structure with an open top and a closed bottom, which can completely wrap the bird's nest fruit flower, forming an independent protective space. This effectively prevents rainwater from directly washing away the stigma and pollen, avoiding pollen loss or water absorption and swelling. Simultaneously, the ventilation and heat dissipation holes at the bottom are only 2-5mm in diameter. Utilizing the principle of liquid surface tension, rainwater cannot penetrate the small holes to enter the inside of the sleeve cup, ensuring a dry and clean pollination environment inside. Compared to the shortcomings of existing technologies using ordinary plastic bags, such as incomplete sealing of the bag opening, rainwater seepage, and poor ventilation in rain shelters, the rainproof structure design of this utility model is more targeted and provides a more stable rainproof effect. Actual planting trials show that under moderate rain conditions, the pollen survival rate of flowers using this rainproof cup can reach over 85%, while the pollen survival rate of the control group without the cup is only 30%-40%. Even in the event of short-term heavy rain, the inside of the cup can remain dry, and the pollen survival rate remains above 70%, effectively solving the adverse effects of rain on the pollination of bird's nest fruit and providing a stable environmental guarantee for subsequent successful pollination.

[0048] 2. Balanced ventilation and heat dissipation prevent heat buildup that could damage flowers and ensure pollen activity remains within a suitable range. The flowering period of the bird's nest fruit coincides with the high-temperature season, making the balance between rain protection and heat dissipation a key technical challenge. Existing technologies use ordinary plastic bags that are completely airtight, leading to severe internal heat buildup, while rain shelters, with their poor ventilation, also suffer from high temperatures. This invention effectively solves this contradiction through a scientifically designed ventilation and heat dissipation system: three evenly distributed exhaust vents at equal angles at the bottom, combined with exhaust vents on the side walls, form a "top-to-bottom" air convection channel. Cool external air enters the cup through the top opening and side wall exhaust vents, carrying heat as it is expelled through the bottom exhaust vents, achieving efficient ventilation and heat dissipation. Simultaneously, the evenly distributed bottom exhaust vents ensure uniform heat dissipation within the cup, preventing localized overheating that could damage flower cells. Test data shows that under daytime ambient temperatures of 28-30℃, the internal temperature of the cup in this invention is maintained at 29-31℃, with a temperature difference of no more than 3℃ from the external environment. This is within the suitable temperature range for pollination of bird's nest fruit (20-30℃), and pollen activity remains above 90%. In contrast, the control group using ordinary plastic bags experienced internal temperatures as high as 38-42℃, pollen activity was only around 50%, and even petal burns and flower wilting occurred. Furthermore, the light-colored reflective coating further reduces the heat absorption efficiency of the cup and improves heat dissipation, allowing the cup to maintain good performance even in high-temperature environments.

[0049] 3. The structure is highly adaptable, convenient and efficient to use, low-cost and environmentally friendly, making it suitable for large-scale promotion. This utility model optimizes the structure, size, and material selection of the cups to accommodate the large diameter and slender stems of the bird's nest fruit flowers: the trumpet-shaped structure perfectly matches the funnel-shaped form of the flower, the upper opening fully accommodates the unfolded petals, and the lower constricted structure fits snugly against the slender stem, preventing rainwater from seeping in through the gap between the stem and the cup; the food-grade PP / PE material is lightweight and soft, with each cup weighing only 5-15g, preventing damage to the stem and offering good flexibility so as not to scratch the petals and stigma during installation and removal; the elastic fixing strap with adjustable buckles can adapt to stems of different thicknesses, providing a secure fixation to prevent wind damage without affecting nutrient transport. In use, growers only need to slip the cups onto the top of the flower 1-2 days before flowering and secure them with the fixing strap. The installation time for a single cup is only 10-20 seconds, making the operation simple and quick, significantly improving planting efficiency. Furthermore, the cup-making material is highly weather-resistant and can be reused for 3-5 growing seasons. The production cost of a single cup is only 0.5-1 yuan, which significantly reduces planting costs compared to the tens of thousands of yuan per acre required to build a rain shelter. At the same time, the food-grade material is non-toxic and harmless, and will not pollute the flowers, fruits, or the environment, aligning with the concept of green agriculture. It is suitable for large-scale application in bird's nest fruit planting bases, yielding significant economic and social benefits. Attached Figure Description

[0050] Figure 1 This is a front view schematic diagram of the bird's nest fruit flowering rainproof cup of Embodiment 1 of this utility model (unit in the schematic diagram: millimeter);

[0051] Figure 2 This is a top view schematic diagram of the bird's nest fruit flowering rainproof sleeve cup of Embodiment 1 of this utility model;

[0052] In the diagram: 1-Cup body, 2-Bottom vent, 3-Side vent, 4-Rounded corner structure, 5-First elastic fixing strap, 6-Second elastic fixing strap, 7-Male buckle, 8-Female buckle, 9-Observation window. Detailed Implementation

[0053] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0054] Example 1

[0055] like Figure 1 , 2As shown, a rainproof cup sleeve for bird's nest fruit blossoms includes a main body 1. The main body 1 is a hollow, funnel-shaped structure with an open top and a closed bottom, made of transparent food-grade PE material. The lower end of the main body 1 has three circular ventilation holes 2, each with a diameter of 3mm, evenly distributed at equal angles around the center of the lower end of the main body 1, with a central angle of 120° between adjacent ventilation holes 2. The sidewall of the main body 1 has two circular sidewall ventilation holes 3, each with a diameter of 10mm. The upper opening edge of the main body 1 has a rounded corner structure 4 with a radius of 0.3mm. The lower outer side of the cup body 1 is provided with a fixing component, which includes an elastic fixing band and a buckle. The elastic fixing band (including a first elastic fixing band 5 and a second elastic fixing band 6) is made of food-grade rubber material, with a width of 6mm and a thickness of 0.3mm. The buckle consists of a male buckle 7 and a female buckle 8 made of PP material, which are respectively fixed to the first elastic fixing band 5 and the second elastic fixing band 6. The outer surface of the cup body 1 is provided with a white reflective coating, and a transparent observation window 9 is provided on the side wall of the cup body 1. The upper opening of the cup body is used to fit over the outside of the bird's nest fruit flower, and a ventilation gap is left between the inner wall of the cup body and the bird's nest fruit flower.

[0056] The usage method of this embodiment is as follows:

[0057] 1. Timing of setting the nest: 1-2 days before the bird's nest fruit blooms, select healthy flower buds that are about to open. At this time, the flower buds have not fully opened, so the petals are less likely to be damaged during the setting process, and rain protection can be prepared in advance.

[0058] 2. Installation Procedure: Insert the rainproof sleeve of this invention through the opening at the top of the flower bud, ensuring the bud is completely inside the sleeve body 1, and that the petals and stigma are not compressed. The flower stem passes through the lower constricted part of the sleeve body 1. Adjust the position of the sleeve so that the lower end of the sleeve body 1 fits tightly against the flower stem, reducing the possibility of rainwater entering through gaps.

[0059] 3. Fixing Operation: Wrap the first elastic fixing strap 5 and the second elastic fixing strap 6 around the flower stem, align and fasten the male buckle 7 and the female buckle 8, and adjust the tightness of the first elastic fixing strap 5 and the second elastic fixing strap 6 according to the thickness of the flower stem, so that the cup is stable and does not wobble, and does not tighten the flower stem, to ensure that the cup will not fall off in windy weather.

[0060] 4. Daily Management: During the day, when the temperature does not exceed 30℃, keep the cups in their nested state. The main body of the cup 1 blocks rainwater, while ventilation and heat dissipation are achieved through the bottom vent 2 and the side vent 3, maintaining a dry and clean pollination environment inside. Growers can regularly observe the opening status of the flowers and pollination through the observation window 9. If a small amount of water is found inside the cup (a rare occurrence), the cup can be gently tilted to allow the water to drain out through the bottom vent 2.

[0061] 5. When to remove: When the flower has been pollinated (usually 1-2 days after flowering, you can observe the stigma darkening and the petals beginning to wither through the observation window), or when no rain is expected in the next 3-5 days, loosen the clips and gently remove the cup to avoid damaging the flower stalk and young fruit.

[0062] 6. Cup recycling: Rinse the removed cups with clean water, dry them, and store them for reuse in subsequent flowering seasons.

[0063] Example 2

[0064] The difference between this embodiment and Embodiment 1 is that: the main body 1 of the cup sleeve is a cylindrical structure made of semi-transparent food-grade PP material. The bottom venting and heat dissipation hole 2 is square with a diameter of 2.5mm. There are no side wall venting and heat dissipation holes on the side wall of the main body 1. The outer surface of the main body 1 has no light-colored coating, and there is no observation window on the side wall.

[0065] The usage method of this embodiment is basically the same as that of embodiment 1. Since there are no side wall ventilation and heat dissipation holes and light-colored coating, the time for wearing the cup should be appropriately shortened in hot weather to avoid excessive internal temperature. When no observation window is provided, growers need to remove the cup regularly to observe the condition of the flowers. The operation steps are slightly more than those of embodiment 1, but it still has the advantages of good rain protection and convenient use.

[0066] Example 3

[0067] The difference between this embodiment and Embodiment 1 is that the bottom ventilation and heat dissipation hole 2 is a regular hexagon with a diameter of 5mm, and the side wall of the cup body 1 has four circular side wall ventilation and heat dissipation holes with a diameter of 12mm. The fixing components use adjustable Velcro instead of elastic fixing straps and buckles; the Velcro is 8mm wide and 5cm long, accommodating thicker flower stems. The observation window has an area of ​​1 / 2 of the total area of ​​the side wall of the cup body, facilitating clearer observation of the flower's condition.

[0068] This embodiment is suitable for bird's nest fruit varieties with larger flowers and thicker flower stalks, or for planting areas with strong winds. The Velcro fastening method is more secure and has a wider adjustment range. The four side wall exhaust and heat dissipation holes further improve the ventilation and heat dissipation effect, making it suitable for promotion and use in high-temperature and windy areas.

[0069] As can be seen from the above embodiments, the bird's nest fruit flowering rainproof cup of this utility model achieves multiple functions such as rainproofing, ventilation and heat dissipation, and flower protection through reasonable structural design. It is suitable for the planting needs of bird's nest fruit of different varieties and different growing environments. It is convenient to use, low in cost, and reusable. It can effectively improve the pollination rate and fruit setting rate of bird's nest fruit, increase planting yield and economic benefits, and has broad application prospects.

[0070] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rainproof cup sleeve for flowering bird's nest fruit, characterized in that, The device includes a cup body, bottom ventilation holes, rounded corners, and a fixing component. The lower end of the cup body has at least three bottom ventilation holes, which are evenly distributed at equal angles around the center of the lower end of the cup body. The upper opening edge of the cup body has a rounded corner structure. A fixing component is provided on the outer side of the lower end of the cup body. The fixing component includes an elastic fixing band and a buckle. The elastic fixing band includes a first elastic fixing band and a second elastic fixing band. The buckle is a male buckle and a female buckle, which are respectively fixed to the first elastic fixing band and the second elastic fixing band.

2. The bird's nest fruit flowering rainproof cup according to claim 1, characterized in that, The main body of the cup is a hollow, trumpet-shaped structure with an open top and a closed bottom.

3. The bird's nest fruit flowering rainproof cup according to claim 2, characterized in that, The main body of the cup is made of transparent or semi-transparent food-grade polypropylene or polyethylene material, and the thickness of the main body of the cup is 0.3-0.8mm.

4. The bird's nest fruit flowering rainproof cup according to claim 1, characterized in that, The number of exhaust heat dissipation holes is 3, the central angle between two adjacent exhaust heat dissipation holes is 120°, the exhaust heat dissipation holes are circular, and the hole diameter is 2-5mm.

5. The bird's nest fruit flowering rainproof cup according to claim 4, characterized in that, The bottom exhaust and heat dissipation holes can be any shape, such as circular, square, or regular polygonal.

6. The bird's nest fruit flowering rainproof cup according to claim 1, characterized in that, The radius of the rounded corner structure is 0.2-0.5 mm.

7. The bird's nest fruit flowering rainproof cup according to claim 1, characterized in that, Both the first and second elastic fixing bands are made of food-grade rubber, with a width of 6mm and a thickness of 0.3mm.

8. The bird's nest fruit flowering rainproof cup according to any one of claims 1-3, characterized in that, The main body of the cup has at least two side wall exhaust and heat dissipation holes on its side wall. The side wall exhaust and heat dissipation holes are circular and have a diameter of 10-12mm.

9. The bird's nest fruit flowering rainproof cup according to claim 8, characterized in that, The outer surface of the cup body is provided with a light-colored coating, which is a white or light gray reflective coating.

10. The bird's nest fruit flowering rainproof cup according to claim 9, characterized in that, The main body of the cup is provided with a transparent observation window on its side wall, and the area of ​​the observation window is 1 / 4 to 1 / 2 of the total area of ​​the side wall of the main body of the cup.

Images