A protective device for citrus fruits against frost damage.

Abstract

This utility model provides a protective device for citrus trees against frost damage, comprising a first elastic sleeve, a cold-proof cloth layer, and a second elastic sleeve. The first elastic sleeve is positioned above the second elastic sleeve. A first elastic band and a second elastic band are respectively wrapped inside the first and second elastic sleeves. A cold-proof cloth layer is sewn between the first and second elastic sleeves. An insulation cotton layer is attached to the inner side of the cold-proof cloth layer, and a non-woven fabric layer is sewn to the inner side of the insulation cotton layer. A first sewn fabric is sewn to the left side of the cold-proof cloth layer, and a second sewn fabric is sewn to the right side. Multiple Velcro loops are sewn onto the outer surface of the first sewn fabric. This design solves the problems of fixed dimensions, poor versatility, easy insulation failure or damage to the citrus tree surface, and complex installation of existing low-temperature protection devices for late-maturing citrus trees. This utility model, with its multi-layered structure, can protect the main trunk of the citrus tree from frost damage. Its flexible design facilitates installation on citrus trees of different thicknesses and curvatures, and its operation is simple.

Description

Technical Field

[0001] This utility model is a protective device for citrus fruits against frost damage, belonging to the field of citrus protection technology. Background Technology

[0002] As a subtropical fruit tree, citrus is highly sensitive to temperature during its growth. When the ambient temperature drops below -2℃, it is prone to frost damage, leading to frostbite on branches, fruit drop, and in severe cases, the death of the entire tree, causing huge economic losses to fruit farmers. Currently, frost protection for citrus mainly relies on manual covering, fumigation, and spraying antifreeze agents. Among these methods, mechanical protection devices are widely used due to their reusability and relatively convenient operation. Existing mechanical devices for citrus frost protection are mostly fixed-size insulation covers or support frames, designed to reduce heat loss through physical insulation.

[0003] For example, Chinese patent CN217308515U proposes a low-temperature protection device for late-maturing citrus trees. This device features a citrus tree antifreeze protection structure that can be assembled and disassembled. The number of layers of the protective shell cylindrical structure can be reasonably selected according to the different growth stages of the citrus trees, and it is easy to fix. Several connecting strips on the same side perimeter make the overall structure of the protective device stable and not easy to disperse. With the film set on its inner perimeter, the internal structure of the device is very airtight. Combined with the heat-insulating interlayer structure in the middle of the protective shell, it provides better antifreeze protection for the roots of citrus trees. However, the device has a fixed size and poor versatility. The antifreeze setting for the roots of young trees is too loose, which leads to heat insulation failure. The antifreeze setting for the roots of mature trees is too tight, which squeezes the roots. At the same time, the support is in direct rigid contact with the roots, which can easily cause damage to the roots. Moreover, it cannot be quickly installed and used in different citrus planting environments (such as slopes and flat land). There is an urgent need for a citrus antifreeze protection device to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a protective device for citrus trees against frost damage, so as to solve the problems mentioned in the background art. This utility model adopts a multi-layer structure to protect the main trunk of citrus trees from frost damage. Moreover, the flexible design makes it convenient to install and use on citrus trees of different thicknesses and bends, and the operation is simple.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a protective device for citrus fruits against frost damage, comprising a first elastic sleeve, a cold-proof cloth layer, and a second elastic sleeve. The first elastic sleeve is positioned above the second elastic sleeve. A first elastic band and a second elastic band are respectively wrapped inside the first elastic sleeve and the second elastic sleeve. A cold-proof cloth layer is sewn between the first elastic sleeve and the second elastic sleeve. An insulation cotton layer is attached to the inner side of the cold-proof cloth layer. A non-woven fabric layer is sewn to the inner side of the insulation cotton layer. A first sewn fabric is sewn to the left side of the cold-proof cloth layer, and a second sewn fabric is sewn to the right side of the cold-proof cloth layer. Multiple Velcro loops are sewn onto the outer surface of the first sewn fabric, and multiple Velcro hooks are sewn onto the inner side of the second sewn fabric.

[0006] Furthermore, a whitening agent layer is applied at the junction of the nonwoven fabric layer and the insulation cotton layer.

[0007] Furthermore, both the first and second sewing fabrics are made of windproof fabric.

[0008] Furthermore, the front end of the second sewing fabric is sewn with multiple sewing fabric covers.

[0009] Furthermore, the multiple hook and loop surfaces are respectively adhered and fixed to the multiple hook and loop hook surfaces.

[0010] Furthermore, both the first and second rubber bands are made of cowhide.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a protective device for citrus trees against frost damage. Because it incorporates a first elastic sleeve, a first rubber band, a non-woven fabric layer, a whitening agent layer, a thermal insulation cotton layer, a cold-proof cloth layer, a first sewn fabric, a Velcro loop side, a second sewn fabric, a Velcro hook side, a second rubber band, and a second elastic sleeve, its structure is reasonable. The Velcro connection and sealing form a complete protective system. The inner layer of the device focuses on heat preservation and temperature locking, while the outer layer focuses on wind and rain protection. The synergistic effect of these two elements significantly improves the frost protection and heat preservation effect on the citrus surface. It can effectively prevent frost damage to the main trunk of the citrus tree. Furthermore, its flexible design makes it convenient to install on citrus trees of different thicknesses and curvatures. It is also simple to operate and highly practical. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a protective device for preventing frost damage to citrus fruits according to the present invention;

[0014] Figure 2 This is a schematic diagram of the cold-proof cloth layer structure of a protective device for citrus trees against frost damage according to this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of a protective device for citrus fruits against frost damage according to this utility model.

[0016] Figure 4 This is a partially enlarged structural diagram of the first elastic sleeve of the protective device for preventing frost damage to citrus fruits according to this utility model.

[0017] In the diagram: 1-First elastic sleeve, 2-First elastic band, 3-Non-woven fabric layer, 4-Whitening agent layer, 5-Insulation cotton layer, 6-Cold-proof fabric layer, 7-First sewn fabric, 8-Hook and loop fastener, 9-Second sewn fabric, 10-Hook and loop fastener, 11-Sewn fabric cover, 12-Second elastic band, 13-Second elastic sleeve. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a protective device for citrus trees against frost damage, comprising a first elastic sleeve 1, a cold-proof cloth layer 6, and a second elastic sleeve 13. The first elastic sleeve 1 is positioned above the second elastic sleeve 13. A first elastic band 2 and a second elastic band 12 are respectively wrapped inside the first elastic sleeve 1 and the second elastic sleeve 13. The cold-proof cloth layer 6 is sewn between the first elastic sleeve 1 and the second elastic sleeve 13. A heat-insulating cotton layer 5 is attached to the inner side of the cold-proof cloth layer 6. A non-woven fabric layer 3 is sewn to the inner side of the heat-insulating cotton layer 5. A first sewn fabric 7 is sewn to the left side of the cold-proof cloth layer 6, and a second sewn fabric 9 is sewn to the right side of the cold-proof cloth layer 6. Multiple hook and loop fasteners 8 are sewn onto the outer surface of the first sewn fabric 7, and multiple hook and loop fasteners 10 are sewn onto the inner side of the second sewn fabric 9. This design solves the problems of the original low-temperature protection device for late-maturing citrus trees having fixed dimensions, poor versatility, easy failure of heat preservation or damage to the surface of citrus trees, and complex installation.

[0020] In the first embodiment of this utility model: a whitening agent layer 4 is applied to the junction of the non-woven fabric layer 3 and the insulation cotton layer 5. When the added whitening agent layer 4 adheres to the surface of the citrus tree, it can eliminate overwintering pathogens and insect eggs in the bark cracks. Both the first sewn fabric 7 and the second sewn fabric 9 are made of windproof material, preventing air leakage. Multiple sewn fabric covers 11 are sewn to the front end of the second sewn fabric 9, making it easy for growers to open and close the second sewn fabric 9. Multiple hook and loop fasteners 8 are respectively glued and fixed to multiple hook and loop fasteners 10. This glued and fixed structure of the cold-proof fabric layer 6 allows the internal insulation cotton layer 5 to effectively insulate the surface of the citrus tree. Both the first elastic band 2 and the second elastic band 12 are made of cowhide. The elasticity of the first elastic band 2 and the second elastic band 12 prevents air leakage at the top and bottom when the device is placed on the surface of the citrus fruit.

[0021] As a second embodiment of this utility model: In actual use, the device is wrapped around the surface of the citrus fruit, and then the first sewn cloth 7 and the second sewn cloth 9 are swung towards each other, so that the non-woven fabric layer 3 and the whitening agent layer 4 are attached to the surface of the citrus fruit, and the multiple hook and loop fasteners 8 are respectively glued and fixed to the multiple hook and loop fasteners 10. The non-woven fabric layer 3 allows a certain amount of air circulation, avoiding the bark from being in a humid environment for a long time, reducing the risk of diseases (such as rot). When the whitening agent layer 4 is attached to the surface of the citrus fruit, it can kill overwintering pathogens and insect eggs in the cracks of the bark. The heat insulation cotton layer 5, through the large amount of still air contained in the material itself (air is a poor conductor of heat) The structure effectively blocks the intrusion of external cold air, slows down the loss of heat inside the tree trunk, and significantly increases the temperature of the microenvironment around the tree trunk. The cold-proof fabric layer 6 achieves breathability through the microporous structure of the fabric or the gaps between the fibers, allowing gas molecules (such as water vapor) to migrate from the inside to the outside through diffusion. Liquid water cannot pass through the micropores due to surface tension, so it can effectively drain the water vapor produced by the tree's respiration and the condensation in the inner environment in a timely manner, avoiding the accumulation of humidity caused by the airtightness, preventing the bark from becoming moldy or the growth of bacteria, while maintaining the air circulation inside, reducing the condensation caused by excessive day and night temperature differences, and ensuring the normal physiological metabolism of the tree.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective device for citrus trees against frost damage, comprising a first elastic sleeve (1), a cold-proof fabric layer (6), and a second elastic sleeve (13), characterized in that: The first elastic sleeve (1) is above the second elastic sleeve (13). The first elastic sleeve (1) and the second elastic sleeve (13) are respectively wrapped with a first elastic band (2) and a second elastic band (12). A cold-proof cloth layer (6) is sewn between the first elastic sleeve (1) and the second elastic sleeve (13). A heat-insulating cotton layer (5) is attached to the inside of the cold-proof cloth layer (6). A non-woven fabric layer (3) is sewn to the inside of the heat-insulating cotton layer (5). A first sewn fabric (7) is sewn to the left side of the cold-proof cloth layer (6). A second sewn fabric (9) is sewn to the right side of the cold-proof cloth layer (6). Multiple hook and loop fasteners (8) are sewn to the outer surface of the first sewn fabric (7). Multiple hook and loop fasteners (10) are sewn to the inner side of the second sewn fabric (9).

2. The protective device for citrus fruits against frost damage according to claim 1, characterized in that: A whitening agent layer (4) is applied at the junction of the nonwoven fabric layer (3) and the insulation cotton layer (5).

3. The protective device for citrus fruits against frost damage according to claim 1, characterized in that: Both the first sewing fabric (7) and the second sewing fabric (9) are made of windproof fabric.

4. The protective device for citrus fruits against frost damage according to claim 1, characterized in that: The second sewing fabric (9) has multiple sewing fabric covers (11) sewn to its front end.

5. The protective device for citrus fruits against frost damage according to claim 1, characterized in that: Multiple hook and loop fasteners (8) are respectively bonded and fixed to multiple hook and loop fasteners (10).

6. The protective device for citrus fruits against frost damage according to claim 1, characterized in that: Both the first rubber band (2) and the second rubber band (12) are made of cowhide.

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