Loquat anti-freezing cover
By designing a loquat frost protection cover with upright poles and support components that can be inserted into the ground, the problem of loquat trees being not cold-resistant was solved, achieving stable protection and flexible adjustment, improving frost protection efficiency and the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-20
AI Technical Summary
Loquat trees are not cold-resistant, and their flowers and young fruits are easily damaged by frost, affecting their growth and yield. Existing frost protection covers are prone to tipping over, are difficult to adjust, and are easily damaged.
A loquat frost protection cover was designed, comprising a frame body and a cover body. The frame consists of uprights that can be inserted into the ground and support components. The support components consist of an upper support rod, a lower support rod, and a telescopic component. The cover body is composed of three layers of composite film. The uprights are anchored to the ground. The support components are adjustable and fixed with buckles to adapt to different soil and weather conditions.
The stability and adaptability of the antifreeze cover have been enhanced, preventing tipping and localized stress concentration. The adjustable support structure extends the service life, improves protection efficiency and reliability, and adapts to different growth needs.
Smart Images

Figure CN224007327U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of anti-freezing covers technology, more specifically, it relates to a loquat anti-freezing cover. BACKGROUND
[0002] Loquat, alias Lu Jujube, Jin Wan, Lu Plant, Rosaceae, loquat, evergreen small trees, small branches are robust, yellow-brown, dense rust color or gray-brown fluff. Leaf leather, needle-shaped, inverted needle-shaped, inverted ovate or elliptic long round shape; flowering period is 10-12 months, fruit period is 5-6 months. Origin in subtropical, widely cultivated in each place. Like sun, drought tolerance is not high to soil, commonly used in landscape viewing;Loquat fruit, with the effect of treating lung dry cough. Origin in China, Jiangsu, Fujian, Zhejiang, Sichuan and other places are cultivated most.
[0003] As known, loquat is not cold-resistant, its flower is frozen at-6 ℃, young fruit is frozen below-3 ℃, which affects its growth, so a kind of anti-freezing cover is needed to protect the flower and young fruit of loquat tree, to ensure its yield and fruit growth quality. UTILITY MODEL CONTENT
[0004] In view of the deficiencies in the prior art, the utility model aims at providing a loquat anti-freezing cover.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a loquat anti-freezing cover, comprising frame body and cover body covered on the frame body, characterized in that the frame body comprises a plurality of vertical rods that can be inserted into the ground and a support assembly arranged between every two vertical rods.
[0006] The utility model is further provided as follows: the support assembly comprises an upper rod, a lower rod oppositely arranged with the upper rod and an extension piece arranged between the upper rod and the lower rod, one end of the extension piece is fixed to the inner bottom surface of the upper rod, and the other end is fixed to the inner bottom surface of the lower rod;The upper rod, the extension piece and the lower rod form an integral body.
[0007] The utility model is further provided as follows: when the upper rod and the lower rod are combined, the upper rod can be covered on the open end of the lower rod to form a cavity inside, and the extension piece is located in the cavity;When the upper rod and the lower rod are separated, the upper rod and the lower rod can be pulled apart in parallel through the extension piece.
[0008] The utility model is further provided as follows: the number of vertical rods is 4, and the vertical rod is a square rod, mounting hole one and mounting hole two are respectively arranged at the top and bottom of each peripheral side of the vertical rod, and connecting column one matched with mounting hole one is fixedly arranged at both ends of the upper rod, and connecting column two matched with mounting hole two is fixedly arranged at both ends of the lower rod.
[0009] The utility model further sets up: the bottom fixed setting connecting plate of stand pole, the ground nail is fixedly arranged to the connecting plate bottom surface, and the circumferential side of ground nail still is provided with the anti-loose tooth.
[0010] The utility model further sets up: the cover body is covered in the frame body, and the cover body is fixed on the frame body through the fixed buckle after being covered in the frame body.
[0011] The utility model further sets up: the cover body is composed of three layer composite film, three layer thickness ratio is 1:1.2:0.8, and total thickness control is at 0.15mm±0.05mm.
[0012] The utility model further sets up: the fully unfolded length L of telescopic piece and the stand pole height H satisfy L=0.7H±5%.
[0013] The utility model further sets up: the four corner bottom of cover body is fixedly connected with buckle ring;The inner diameter of buckle ring is greater than the maximum diameter of anti-loose tooth on ground nail and is less than the diameter of connecting plate.
[0014] The utility model has the advantages of:
[0015] 1. Compared with prior art, the loquat anti-freezing cover of the utility model is formed with stable three-dimensional support structure by setting up the stand pole and support assembly that can be inserted into the ground, effectively enhances the overall wind resistance and pressure resistance of the anti-freezing cover;The design that the stand pole is directly anchored with the ground improves the stability of the device in soft soil, avoids the problem that the traditional anti-freezing cover is easy to dump;The support assembly connects multiple stand poles to form a net-shaped frame, so that the cover body stress is evenly dispersed, reduces the deformation risk caused by local stress concentration;This modular structure is also convenient for quick disassembly and transportation, can flexibly adjust the layout according to the distribution of loquat plants, and significantly improves the anti-freezing operation efficiency.
[0016] 2. In the loquat anti-freezing cover of the utility model, the combination of upper stand pole, lower stand pole and telescopic piece realizes the adjustable function of support structure. The longitudinal telescopic property of telescopic piece makes the frame height dynamic adjustment according to the growth demand of plants, avoids the limitation of traditional fixed support to tree crown growth;The integrated structure design eliminates the connection gap, enhances the overall rigidity of the frame, effectively resists the impact of accumulated snow or hail;The symmetrical layout of upper stand pole and lower stand pole optimizes the mechanical transmission path, so that the telescopic piece can stably bear external force in the unfolded state, and the service life of the device is significantly prolonged.
[0017] 3. In this utility model, the combined state of the upper and lower extension rods forms a sealed cavity structure, which cleverly hides the moving parts of the telescopic component and prevents rain and snow from seeping in and causing the metal parts to rust; the cavity design also provides a physical protective layer for the telescopic component, avoiding mechanical damage caused by external force collisions; in the separated state, the parallel tension structure ensures the linear stability of height adjustment; this dual-state design takes into account both compact storage and reliable use, greatly improving the adaptability of the device.
[0018] 4. This utility model has a simple and reasonable structure, is easy to manufacture and operate, avoids the defects of the prior art, and is suitable for promotion and application. Attached Figure Description
[0019] Fig. 1 This is a structural diagram of the loquat antifreeze cover.
[0020] Fig. 2 This is a structural diagram of the assembly of the uprights and support components.
[0021] Fig. 3 This is a cross-sectional view of the supporting components during assembly.
[0022] Fig. 4 This is a structural diagram of the fixing buckle.
[0023] Fig. 5 This is a structural diagram of the snap ring.
[0024] Figs. 1-5 Reference numerals in the attached drawings: 1. Cover body; 2. Upright pole; 3. Support assembly; 4. Upper support rod; 5. Lower support rod; 6. Telescopic component; 7. Mounting hole one; 8. Mounting hole two; 9. Connecting column one; 10. Connecting column two; 11. Connecting plate; 12. Ground nail; 13. Anti-loosening thread; 14. Fixing buckle; 15. Buckle ring. Detailed Implementation
[0025] Reference Figs. 1-5 The embodiments of the loquat antifreeze cover of this utility model are further described below.
[0026] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0027] Moreover, the terms such as "first" and "second" and the like are merely used to distinguish one from another of a same name in the description, and do not necessarily require or imply there is any such actual relationship or order between the parts.
[0028] Figs. 1 to 5 The loquat frost protection cover shown comprises a frame body and a cover body 1 covered on the frame body, characterized in that the frame body comprises a plurality of stand poles 2 which can be inserted into the ground and a support assembly 3 arranged between every two stand poles 2.
[0029] By arranging the stand poles 2 which can be inserted into the ground and the support assembly 3, a stable three-dimensional support structure is formed, effectively enhancing the overall wind resistance and pressure resistance of the frost protection cover. The design of directly anchoring the stand poles 2 to the ground improves the stability of the device in soft soil, avoiding the problem of easy tilting of traditional frost protection covers. The support assembly 3 connects multiple stand poles 2 to form a net-like frame, making the force on the cover body 1 evenly dispersed and reducing the risk of deformation caused by local stress concentration. This modular structure also facilitates quick disassembly and transportation, and can be flexibly adjusted according to the distribution of loquat plants, significantly improving the efficiency of frost protection work.
[0030] The support assembly 3 comprises an upper pole 4, a lower pole 5 arranged opposite to the upper pole 4, and an extension piece 6 arranged between the upper pole 4 and the lower pole 5. One end of the extension piece 6 is fixed to the inner bottom surface of the upper pole 4, and the other end is fixed to the inner bottom surface of the lower pole 5. The upper pole 4, the extension piece 6 and the lower pole 5 form an integral structure.
[0031] The combination of the upper pole 4, the extension piece 6 and the lower pole 5 realizes the adjustable function of the support structure. The longitudinal extension characteristic of the extension piece 6 allows the frame height to be dynamically adjusted according to the growth needs of the plants, avoiding the limitation of traditional fixed supports on the growth of the tree canopy. The integral structure design eliminates the connection gap, enhances the overall rigidity of the frame, and effectively resists the impact of snow or hail. The symmetrical layout of the upper pole 4 and the lower pole 5 optimizes the mechanical transmission path, allowing the extension piece 6 to stably bear external forces in the expanded state, significantly prolonging the service life of the device.
[0032] When the upper pole 4 and the lower pole 5 are combined, the upper pole 4 can cover the open end of the lower pole 5 to form a cavity inside, and the extension piece 6 is located in the cavity. When the upper pole 4 and the lower pole 5 are separated, the upper pole 4 and the lower pole 5 can be pulled apart in parallel through the extension piece 6.
[0033] The combined state of the upper L-shaped rod 4 and the lower L-shaped rod 5 forms a closed cavity structure, which skillfully hides the moving parts of the telescopic member 6 and prevents rain and snow from penetrating to cause metal parts to rust; the cavity design also provides a physical protection layer for the telescopic member 6 to avoid mechanical damage caused by external force impact; the parallel stretching structure in the separated state ensures the linear stability of height adjustment; this dual-state design takes into account the compactness of storage and the reliability of use, greatly improving the adaptability of the device.
[0034] The number of the vertical rods 2 is four, and the vertical rods 2 are square rods, each of the top and bottom of the peripheral side of the vertical rod 2 is provided with a mounting hole one 7 and a mounting hole two 8, respectively, and the two ends of the upper L-shaped rod 4 are fixedly provided with a connecting column one 9 matched with the mounting hole one 7, and the two ends of the lower L-shaped rod 5 are fixedly provided with a connecting column two 10 matched with the mounting hole two 8;
[0035] The edge structure of the square vertical rod 2 significantly enhances the torsional resistance of the rod, preventing the frame from twisting and deforming under the action of multi-directional wind force; the symmetrical mounting hole design at the top and bottom realizes the two-way positioning installation of the support assembly 3, ensuring that each connection node is at the best stress angle; the precise fit of the connecting column and the mounting hole eliminates the assembly gap, making the frame form a stable closed loop structure; the square layout of the four vertical rods 2 forms a standardized geometric support system for the frost protection cover, which not only maximizes space utilization, but also facilitates size standardization management during batch production.
[0036] The bottom end of the vertical rod 2 is fixedly provided with a connecting plate 11, the bottom surface of the connecting plate 11 is fixedly provided with a ground nail 12, and the peripheral side of the ground nail 12 is further provided with an anti-loose tooth 13;
[0037] The composite anchoring system of the connecting plate 11 and the ground nail 12 realizes double fixing effect, the conical piercing structure of the ground nail 12 ensures reliable grip in frozen soil conditions; the barb design of the anti-loose tooth 13 prevents anchoring failure when the soil is loosened through the friction self-locking principle, and is especially suitable for freezing and thawing alternating environment with large diurnal temperature difference; the area distribution of the connecting plate 11 effectively disperses the ground pressure of the vertical rod 2, avoiding the collapse problem of soft foundation; this anchoring system enables the frost protection cover to adapt to various soil types such as clay and sandy soil, significantly improving the regional adaptability of the device.
[0038] After the cover body 1 is covered on the frame body, the cover body 1 is fixed on the frame body by a fixed buckle 14;
[0039] The elastic locking mechanism of the fixed buckle 14 realizes the quick and damage-free fixing of the cover body 1 and the central rod 2 in the frame body, and the interference fit design of the buckle ensures that it remains tightly connected in a negative pressure environment; the modular buckle layout makes the tension of the cover body 1 evenly distributed, avoiding local tearing caused by traditional binding methods; this design supports a single person to quickly complete the cover body 1 replacement operation, and is especially suitable for emergency protection needs during the frost warning period; the anti-misoperation structure of the buckle also reduces the risk of component damage during installation, significantly improving the reliability of the anti-freezing operation.
[0040] The cover body 1 is composed of three layers of composite film, including: an outer layer of LDPE film layer containing 10%-15% nanometer titanium dioxide, a middle layer of EVA heat preservation layer adding 5%-8% far infrared ceramic powder, and an inner layer of LLDPE film layer mixed with 3%-5% anti-fog agent, the thickness ratio of the three layers is 1:1.2:0.8, and the total thickness is controlled within 0.15mm±0.05mm;
[0041] The three-layer composite film realizes a synergistic protection effect through functional layering; the outer layer of 10%-15% nanometer titanium dioxide LDPE film layer forms a photocatalytic self-cleaning surface, continuously decomposes organic pollutants and maintains light transmittance; the middle layer of 5%-8% far infrared ceramic powder EVA layer reduces heat loss through radiation reflection, and the actual measurement shows that the heat preservation efficiency is improved by more than 40%; the inner layer of 3%-5% anti-fog agent LLDPE film layer uses polar groups to adsorb water molecules, allowing the dew to form a continuous water film that slides off; the thickness ratio of 1:1.2:0.8 optimizes the balance between mechanical properties and light transmittance, and the total thickness of 0.15mm±0.05mm maximizes light transmittance while ensuring strength.
[0042] The fully extended length L of the telescopic member 6 and the height H of the vertical rod 2 satisfy L=0.7H±5%;
[0043] The telescopic member 6 has an extended length that is 0.7 times the height of the vertical rod 2, based on the golden section principle of the camellia crown growth model; this ratio ensures that the telescopic member 6 still has 30% redundant stroke when fully extended, providing a buffer space for frame deformation in extreme weather; the ±5% tolerance band design takes into account manufacturing precision and use reliability, allowing different batches of products to be interchangeable; this high correlation design allows the frost protection cover to intelligently adjust with plant growth, always maintaining the best protection space volume.
[0044] The cover body 1 is fixedly connected with a buckle ring 15 at the bottom of each corner; the inner diameter of the buckle ring 15 is greater than the maximum diameter of the anti-loose tooth 13 on the ground nail 12 and less than the diameter of the connecting plate 11;
[0045] The buckle ring 15 and the ground nail 12 are designed in size matching to form a double anti-loosing mechanism, the limit of the maximum diameter of the loosening tooth 13 ensures that the buckle ring 15 can be freely sleeved and will not be accidentally taken out, the diameter of the connecting plate 11 forms a physical stop to prevent the overall displacement of the cover body 1 when the cover body 1 is moved by strong wind; the corner positioning design makes the tension of the cover body 1 uniformly transmitted to the anchoring system, avoiding the corner tearing caused by stress concentration; the size chain closed loop design greatly improves the protection reliability in bad weather.
[0046] The loquat anti-freezing cover is extremely convenient to install, disassemble, store and carry. When installation is needed, four vertical rods 2, four groups of support assemblies 3 and the cover body 1 are carried to the loquat tree, then the four vertical rods 2 are respectively pre-inserted into the ground according to the square contour, then the support assemblies 3 are inserted between every two vertical rods 2, specifically, after the connecting column two 10 on the lower vertical rod 5 is inserted into the installation hole two 8, the upper vertical rod 4 is stretched upwards and separated from the lower vertical rod 5, then the connecting column one 9 on the upper vertical rod 4 is inserted into the installation hole one 7, until the four groups of support assemblies 3 are installed to form the frame body, then the cover body 1 is covered on the frame body, after the cover body 1 is covered, every vertical rod 2 is pulled out in sequence, then the buckle ring 15 at the bottom of the cover body 1 is sleeved on the ground nail 12, then the ground hole is filled and tamped after the vertical rod 2 is pulled out, and then the vertical rod 2 is inserted back; finally, the fixing buckle 14 is fixed on every vertical rod 2 of the frame body. The loquat anti-freezing cover has the advantages of simple and reasonable structure, convenient manufacturing and operation, and avoids the defects in the prior art, and is suitable for popularization and implementation.
[0047] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and the person skilled in the art can make common changes and replacements within the technical scheme range of the utility model, which should be included in the protection range of the utility model.
Claims
1. A loquat antifreeze cover, comprising a frame body and a cover (1) disposed on the frame body, characterized in that, The frame body includes several uprights (2) that can be inserted into the ground at the bottom and a support assembly (3) disposed between every two uprights (2).
2. The loquat antifreeze cover according to claim 1, characterized in that, The support assembly (3) includes an upper rod (4), a lower rod (5) opposite to the upper rod (4), and a telescopic member (6) disposed between the upper rod (4) and the lower rod (5). One end of the telescopic member (6) is fixed to the inner bottom surface of the upper rod (4), and the other end is fixed to the inner bottom surface of the lower rod (5). The upper rod (4), the telescopic member (6), and the lower rod (5) are integrated.
3. The loquat antifreeze cover according to claim 2, characterized in that, When the upper rod (4) and the lower rod (5) are combined, the upper rod (4) can cover the open end of the lower rod (5) to form a cavity inside, and the telescopic member (6) is located in the cavity; when the upper rod (4) and the lower rod (5) are separated, the upper rod (4) and the lower rod (5) can be pulled apart in parallel by the telescopic member (6).
4. A loquat antifreeze cover according to claim 1 or 3, characterized in that, The number of uprights (2) is 4, and the uprights (2) are square rods. Each side of the uprights (2) has a first mounting hole (7) and a second mounting hole (8) at the top and bottom respectively. The upper rod (4) has a first connecting post (9) that matches the first mounting hole (7) at both ends, and the lower rod (5) has a second connecting post (10) that matches the second mounting hole (8) at both ends.
5. A loquat antifreeze cover according to claim 1, characterized in that, A connecting plate (11) is fixedly installed at the bottom end of the pole (2). A ground nail (12) is fixedly installed on the bottom surface of the connecting plate (11), and anti-loosening teeth (13) are also provided on the periphery of the ground nail (12).
6. A loquat antifreeze cover according to claim 1, characterized in that, After the cover (1) is placed on the frame body, the cover (1) is fixed to the frame body by the fixing buckle (14).
7. A loquat antifreeze cover according to claim 1, characterized in that, The cover (1) is composed of three layers of composite film with a thickness ratio of 1:1.2:0.8 and a total thickness controlled at 0.15mm±0.05mm.
8. A loquat antifreeze cover according to claim 2, characterized in that, The fully extended length L of the telescopic component (6) and the height H of the upright (2) satisfy L=0.7H±5%.
9. A loquat antifreeze cover according to claim 1, characterized in that, The cover (1) is fixedly connected to the bottom of each of its four corners with a buckle ring (15); the inner diameter of the buckle ring (15) is larger than the maximum diameter of the anti-loosening tooth (13) on the ground nail (12) and smaller than the diameter of the connecting plate (11).