Frost and hail protection tree clothing for fruit trees

Abstract

The present invention relates to a tree coat for preventing frost damage and hail damage to fruit trees. Specifically, it is a disaster reduction equipment for "preventing frost damage to flowers, frost damage to fruits, and fruits being damaged" in advance when agricultural fruit trees and precious ornamental cash crops suddenly encounter short-term passing low-temperature cold currents or strong convective hail disasters during the "initial flowering, young fruit, and growth period". It is a "frost damage and hail prevention" disaster reduction equipment that can actively resist, precisely prevent, precisely reduce disasters, and has the shape of a coat and an umbrella. The present invention can be on duty in the orchard for a long time. When the crops are about to suffer short-term meteorological disasters, fruit farmers can manually assist and electrically open it in advance according to scientific meteorological information such as local weather forecasts. After the meteorological disaster ends, fruit farmers can quickly electrically control and retract it to continue on duty in the orchard.

Description

Technical Field

[0001] The present invention relates to a tree coat for preventing fruit trees from frost damage and hail (hereinafter referred to as "tree coat"). Specifically, it is an effective preventive measure that can prevent "frosted flowers, frosted fruits, and fruits being damaged" in advance when agricultural fruit trees and precious ornamental cash crops encounter short-term low-temperature cold currents or strong convective hail disasters during the "initial flowering, young fruit, and growth period". It is a disaster reduction equipment for "preventing frost damage and hail" that can actively resist, precisely prevent, precisely reduce disasters, and has an appearance like a coat and an umbrella shape. Background Art

[0002] Frost damage is a type of agricultural meteorological disaster. When the water vapor saturation in the air reaches 100% and the environmental temperature is lower than the critical freezing point of the crop itself or below 0°C, it causes water vapor to condense on the surface of the plant or freeze inside the plant, and when the temperature rises, the plant dehydrates itself, resulting in damage.

[0003] From April 5th to 7th, 2018, large areas in Gansu Province, China, encountered short-term passing of strong winds and extreme cooling weather. The minimum temperature in most areas dropped below -4°C, and the minimum temperature in some areas dropped below -10°C. According to meteorological data records: the extreme low-temperature weather in April in Tianshui City, Gansu Province for 37 years (since 1981), Pingliang City, Jingning, and Qingyang for 56 years (since 1962) caused serious disasters to fruit trees in the whole province, especially in the main producing areas such as Jingning, Tianshui, Pingliang, and Qingyang, with huge losses. Nearly 17,000 hectares were affected, 9,704 hectares had no harvest, and the direct economic loss exceeded 460 million yuan. This frost damage occurred in a wide range and involved many types of fruit trees. Since the temperature rose rapidly in March of spring, the phenological period of fruit trees was 7 to 15 days earlier than in previous years. Although the meteorological department timely carried out meteorological forecasts and disaster warnings, and local government departments actively organized technical personnel of the agricultural department and the broad masses of farmers to take wind prevention, frost prevention, and anti-freezing measures, due to the large temperature drop, long duration of low temperature, and frost occurring continuously for 2 days, the effect of frost prevention and anti-freezing was not obvious.

[0004] Hail disaster is also a type of agricultural meteorological disaster, which is most common in summer or at the transition between spring and summer. During the formation process of strong convective rainstorm weather, when encountering rapidly descending cold air, raindrops quickly condense into larger ice masses at high altitudes and fall to the ground, resulting in damage to production and living materials and disasters to crops.

[0005] From May 30th to June 1st, 2020, some areas in Gansu Province, China, encountered short-term large-scale strong winds and extreme weather, and thunderstorm hail caused disasters, resulting in large-scale disasters to apples, peaches, and Chinese prickly ash in the main producing areas of Pingliang, Tianshui, and Jingning. The direct economic loss reached 130 million yuan, and millions of fruit farmers were affected. The branches and trunks of fruit trees were damaged, and the flower buds were damaged. It is estimated that it will take three years to fully recover.

[0006] To defend against the meteorological disasters mentioned above, the agricultural departments and the common people in the high-incidence areas of meteorological disasters have thought of many ways. According to the local temperature conditions, cold-resistant varieties are selected, and the northern boundaries of planting and the upper limits of altitude for different crops are determined. At the same time, anti-freezing cultivation measures are used, including sowing winter crops at the right time, with appropriate sowing depth, implementing furrow sowing near the northern boundary and irrigating frozen water in a timely manner, pinching the tips of fruit trees in summer in a timely manner, controlling irrigation in autumn, pruning before winter, various forms of covering, such as burying grapes in the soil, wrapping the main trunks of fruit trees with grass, covering citrus seedlings with straw curtains and windbreaks, and covering cash crops with plastic films, etc., which also have good anti-freezing effects, but cannot solve the fundamental problem; in terms of hail prevention, using hail-proof nets has certain effects, but factors such as large construction difficulty, high terrain requirements, and inflexible use limit the possibility of large-scale popularization and use. Summary of the Invention

[0007] In view of the above, in order to prevent fruit trees from suffering from meteorological disasters brought by short-term low-temperature cold currents and strong convective hailstorms during the "flowering period or young fruit period", the purpose of the present invention is to provide a tree coat for preventing frost damage and hail damage to fruit trees.

[0008] The present invention can be on duty in the orchard for a long time. When the crops are about to suffer from short-term cold current meteorological disasters, fruit farmers can open it manually and assisted by electricity in advance according to scientific meteorological information such as local weather forecasts. "Shaped like a coat", through the wrapped cover-like isolation structure, it can accurately prevent frost damage caused by cold currents during the flowering period and young fruit period of fruit trees. When preventing hail disasters, the present invention can be remotely opened within one minute. "Shaped like an umbrella", using the umbrella-shaped elastic barrier structure, it can buffer and resist the physical vertical attack of hail, reducing the degree of crop damage. When the meteorological disaster ends, fruit farmers can quickly control it electrically to retract the "tree coat" and continue to be on duty in the orchard.

[0009] The purpose of the present invention can be achieved through the following specific technical solutions:

[0010] A tree coat for preventing frost damage and hail damage to fruit trees, its main structure is composed of a liftable protective high-arch top cover A, an I-shaped scroll B, a hollow transmission shaft C, a limit shaft core D, a skirt-shaped soft tree cover E, a top cover self-locking drive motor F, a scroll self-locking drive motor G, a base main body H, a bendable umbrella-shaped elastic support I, a height-adjustable hollow support rod J and a "control circuit":

[0011] The liftable protective high-arch top cover A includes a top cover, a nut lifting tube, an axle cover fixing screw, an internal spline of the top cover, and a rubber comb guide ring;

[0012] The I-shaped scroll B includes a scroll main body, a scroll bearing, a hanging buckle, and a scroll gear ring:

[0013] The hollow transmission shaft C includes a hollow transmission shaft body, a threaded lifting shaft head, and a transmission shaft gear;

[0014] The limit shaft core D includes a limit shaft core, an external spline, and a sliding groove square column;

[0015] The skirt-shaped soft tree cover E includes a skirt-shaped soft tree cover body, a hook binding rope, and a water storage tank;

[0016] The top cover self-locking drive motor includes a top cover lifting self-locking drive motor and a motor gear;

[0017] The reel self-locking drive motor G includes a reel self-locking drive motor and a motor gear;

[0018] The base body H includes a base, a drive shaft bearing, and an umbrella-shaped elastic support fixing hole;

[0019] The bendable umbrella-shaped elastic support I includes an umbrella-shaped elastic support thin rod and a perforated umbrella bead;

[0020] The height-adjustable hollow support rod J includes a support rod, a lifting sleeve, and a locking pin;

[0021] At the top of the support rod (28) with a lifting sleeve (29) and a locking pin (30), a box body composed of a top cover (1) and a base (23) is installed. A transmission shaft bearing (24) and a fixed hole of an umbrella-shaped elastic support fixing card (25) are respectively installed at the center bottom and the edge of the base (23). A plurality of flexible umbrella-shaped elastic support thin rods (26) with perforated umbrella beads (27) are movably and fixedly installed on the fixed hole of the umbrella-shaped elastic support fixing card (25) in a uniformly divergent manner. Two power driving devices, namely, a top cover lifting self-locking driving motor (19) and a reel self-locking driving motor (21), are installed on the base (23) and are connected to the "control circuit". The "control circuit" is composed of a top cover lifting self-locking driving motor (19), a reel self-locking driving motor (21), a DC power supply, a power supply polarity switching switch K1 (including contacts 1, 2, 3, 4, 5), a self-resetting normally open contact switch K2, a single-pass double-contact switch K3 (including contacts 6, 7), a self-resetting break-type normally closed switch K4, and a self-resetting break-type normally closed switch K5, which are connected by wires. The motor gear (20) on the top cover lifting self-locking driving motor (19) forms a linkage with the hollow transmission shaft body (10) through the transmission shaft gear (12). The motor gear (22) on the reel self-locking driving motor (21) forms a linkage with the reel (6) through the reel gear ring (9). A limiting shaft core (13) is movably installed through the center position of the base (23). The limiting shaft core (13) has a structure with an external spline (14) at the upper end, a circular shaft-shaped shaft body in the middle, and a square column with a sliding groove (15) at the lower end. The upper and lower end faces of the groove on the square column with a sliding groove (15) respectively form a travel switch circuit with the self-resetting break-type normally closed switch K4 and the self-resetting break-type normally closed switch K5 in the "control circuit". Outside the limiting shaft core (13), a hollow transmission shaft body (10) with an external thread lifting shaft head (11) at the top and a transmission shaft gear (12) in the middle is movably sleeved. A reel bearing (7) and a reel (6) are sleeved outside the hollow transmission shaft body (10). The upper end of the outside of the reel (6) is fixed by a hanging buckle (8) and a hook binding rope (17) and is wound with a skirt-shaped soft tree cover main body (16). A water storage tank (18) is designed on the skirt-shaped soft tree cover main body (16). Inside the lower edge of the top cover (1), a rubber comb guide ring (5) is designed. The nut lifting tube (2) on the top cover (1) is in a spiral sliding combination with the thread lifting shaft head (11) on the hollow transmission shaft body (10). At the same time, the internal spline of the top cover (4) on the top cover (1) is fixed to the external spline (14) on the limiting shaft core (13) by a screw (3), so that the top cover (1) and the limiting shaft core (13) become an integrated body. Then, through the square column with a sliding groove (15) at the lower end of the limiting shaft core (13) and the central square hole of the base (23), a radial up-and-down sliding combination is realized, and finally all the above components form a linkage whole.

[0022] For the fruit tree frost and hail protection tree cover described above, the linkage relationship of its main structural components is as follows:

[0023] The positive pole of the DC power supply is connected to the power supply polarity switching switch K1 (contact 1 → contact 3), the self-resetting normally open contact switch K2, the top cover lifting self-locking drive motor, and the self-resetting break-type normally closed switch K4 through wires, and then connected to the negative pole of the DC power supply through the power supply polarity switching switch K1 (contact 5 → contact 2) to form a circuit. When the self-resetting normally open contact switch K2 is closed, the circuit is energized. The top cover lifting self-locking drive motor on the base rotates counterclockwise due to the reverse power supply of the positive and negative poles. According to the composition relationship of the above main structural components, when the top cover lifting self-locking drive motor and the motor gear rotate counterclockwise (viewed from top to bottom), through the linkage of the transmission shaft gear, it will drive the hollow transmission shaft body and the threaded lifting shaft head to rotate clockwise synchronously. When the threaded lifting shaft head rotates clockwise, it will drive the nut lifting tube on the top cover to rise, and then drive the top cover, the limit shaft core and the sliding groove square column body at the lower end of the limit shaft core to rise synchronously. When the top cover, the limit shaft core and the sliding groove square column body rise synchronously to the predetermined opening position, the lower end face of the sliding groove of the sliding groove square column body will squeeze the self-resetting break-type normally closed switch K4 on the base to disconnect, and the top cover lifting self-locking drive motor will stop rotating, and the top cover will rise and open. At the same time, the positive pole of the DC power supply is connected to the power supply polarity switching switch K1 (contact 1 → contact 3), the reel self-locking drive motor, and the single-pass double-contact switch K3 (contact 6) through wires, and then connected to the negative pole of the DC power supply through the power supply polarity switching switch K1 (contact 5 → contact 2) to form a circuit. When the single-pass double-contact switch K3 (contact 6) is closed, the circuit is energized. The reel self-locking drive motor on the base rotates clockwise due to the corresponding power supply of the positive and negative poles. The reel self-locking drive motor and the motor gear rotate clockwise, which will drive the reel gear on the reel to rotate clockwise, and then drive the reel and the skirt-shaped soft tree cover body fixed and wound on the reel to rotate and open dispersedly.

[0024] When the positive pole of the DC power supply is connected to the power supply polarity switching switch K1 (contact 1 → contact 4), the self-resetting break-type normally closed switch K5, the top cover lifting self-locking drive motor, the self-resetting normally open contact switch K2, the power supply polarity switching switch K1 (contact 3 → contact 2), and the negative pole of the DC power supply through a wire to form a circuit, closing the self-resetting normally open contact switch K2, the circuit is energized, and the top cover lifting self-locking drive motor on the base rotates clockwise due to the corresponding power supply of the positive and negative poles. According to the composition relationship of the above main structural components, when the top cover lifting self-locking drive motor and the motor gear rotate clockwise (viewed from top to bottom), through the linkage of the transmission shaft gear, it will drive the hollow transmission shaft body and the threaded lifting shaft head to rotate counterclockwise synchronously. When the threaded lifting shaft head rotates counterclockwise, it will drive the nut lifting tube on the top cover to descend, and then drive the top cover, the limit shaft core, and the sliding groove square column body at the lower end of the limit shaft core to descend synchronously. When the top cover, the limit shaft core, and the sliding groove square column body descend to the predetermined opening position, the upper end surface of the sliding groove of the sliding groove square column body will squeeze the self-resetting break-type normally closed switch K5 on the base to disconnect due to the descent, and the top cover lifting self-locking drive motor stops rotating, and the top cover descends and closes. At the same time, the positive pole of the DC power supply is connected to the power supply polarity switching switch K1 (contact 1 → contact 4), the single-pass double-contact switch K3 (contact 7), the reel self-locking drive motor through a wire to the power supply polarity switching switch K1 (contact 3 → contact 2), and the negative pole of the DC power supply to form a circuit. When the single-pass double-contact switch K3 (contact 7) is closed, the circuit is energized, and the reel self-locking drive motor on the base rotates counterclockwise due to the reverse power supply of the positive and negative poles. The reel self-locking drive motor and the motor gear of the reel rotate counterclockwise, which will drive the reel gear on the reel to rotate counterclockwise, thereby driving the reel and the skirt-shaped soft tree cover body fixedly wound on the reel to rotate counterclockwise and wind up. Among them, the rubber comb guide ring on the inner side of the lower edge of the top cover and the upper edge of the base are frictionally rolled together, so that during the winding-up process of the skirt-shaped soft tree cover body, it plays a role of obstructive auxiliary winding and recovery.

[0025] The above-mentioned "DC power supply" is powered by several power supply methods such as solar cells, mobile batteries, and external power supplies. The "control methods" of the above-mentioned "self-resetting normally open contact switch K2, closing the single-pass double-contact switch K3 (contact 6), closing the single-pass double-contact switch K3 (contact 7)" can be controlled by several modes such as a manual wire control panel, a remote control, and a wireless centralized remote control.

[0026] The advantages and beneficial effects of the present invention are:

[0027] 1. When a short-term passing cold snap strikes, fruit farmers can quickly put on "tree clothes" for fruit tree cash crops in advance based on scientific meteorological information such as local weather forecasts. At this time, "shaped like clothes", through the soft tree clothes cover-like wrapping and isolation structure, it can accurately prevent the freeze damage caused by the sudden encounter of short-term cold snaps during the flowering and young fruit stages of fruit trees.

[0028] 2. When a hail disaster is about to occur, remotely control it immediately and open the "tree clothes" within 1 minute. At this time, "shaped like an umbrella", using the umbrella-shaped elastic structure to block, buffer, and resist the vertical attack of hail, reducing the hail disaster of fruit trees during the growth period.

[0029] 3. The present invention takes a single crop as an independent service object, is suitable for fruit trees planted in various terrains, and for fruit trees with strong tree bodies and excellent varieties, it can selectively prepare "tree clothes", reducing the input cost of agricultural materials and increasing farmers' income.

[0030] 4. The "tree clothes" of the present invention are protected by an aluminum alloy or high-strength plastic shell, and have the functions of small volume, light weight, sun protection, waterproof, anti-corrosion, insect prevention, and mildew prevention. They can stand guard in the orchard for a long time, be opened and retracted at any time, and are convenient to use.

[0031] 5. The present invention is a non-disposable disaster prevention and mitigation facility that can be reused for many years. The "tree clothes" are made of high-strength tear-resistant, light, smooth, light-transmitting, waterproof, and mildew-proof ultra-thin polyester spun fabric or plastic film. When the clothing body is damaged or old and weathered, it can be replaced, and the comprehensive cost is low.

[0032] 6. Compared with conventional freeze damage and hail disaster prevention and control measures, the present invention is simple, direct, and efficient, accurately targets prevention, and blocks and reduces the losses caused by meteorological disasters from the source.

[0033] 7. The present invention is controlled semi-automatically by electricity, with simple operation, and one or two people can quickly complete the installation and recovery of the tree clothes. Description of the Drawings

[0034] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0035] Figure 2 It is a schematic diagram of the component composition principle of the present invention.

[0036] Figure 3 It is a schematic diagram of the control circuit of the present invention.

[0037] Figure 4 It is a schematic diagram of the structural principle of the limit shaft core D of the present invention.

[0038] Figure 5This is a schematic diagram of the usage principle of the present invention in "guarding orchards, preventing frost damage, and preventing hail". Among them, Figure a is a schematic diagram of the state of the guarded orchard before frost damage prevention and hail prevention for fruit trees; Figure b is a schematic diagram of the usage state for frost damage prevention of fruit trees; Figure c is a schematic diagram of the usage state for hail prevention of fruit trees. Detailed implementation mode

[0039] The present invention will be further described below in conjunction with the attached drawings:

[0040] (1) A tree coat for preventing frost damage and hail to fruit trees, whose main structure is composed of a liftable protective high-arch top cover A, an I-shaped reel B, a hollow transmission shaft C, a limit shaft core D, a skirt-shaped soft tree cover E, a top cover self-locking drive motor F, a reel self-locking drive motor G, a base main body H, a bendable umbrella-shaped elastic support I, a height-adjustable hollow support rod J, and a "control circuit":

[0041] The liftable protective high-arch top cover A includes a top cover, a nut lifting pipe, an axle cover fixing screw, an internal spline of the top cover, and a rubber comb guide ring;

[0042] The I-shaped reel B includes a reel main body, a reel bearing, a hanging buckle, and a reel gear ring:

[0043] The hollow transmission shaft C includes a hollow transmission shaft body, a threaded lifting shaft head, and a transmission shaft gear;

[0044] The limit shaft core D includes a limit shaft core, an external spline, and a sliding groove square column body;

[0045] The skirt-shaped soft tree cover E includes a skirt-shaped soft tree cover main body, a hook binding rope, and a water storage tank;

[0046] The top cover self-locking drive motor F includes a top cover lifting self-locking drive motor and a motor gear;

[0047] The reel self-locking drive motor G includes a reel self-locking drive motor and a motor gear;

[0048] The base main body H includes a base, a transmission shaft bearing, and an umbrella-shaped elastic support fixing card hole;

[0049] The bendable umbrella-shaped elastic support I includes an umbrella-shaped elastic support thin rod and a perforated umbrella bead;

[0050] The height-adjustable hollow support rod J includes a support rod, a lifting sleeve, and a locking pin;

[0051] As Figure 2As shown in the figure; at the top of a support rod 28 containing a lifting sleeve 29 and a locking pin 30, a box body composed of a top cover 1 and a base 23 is installed. A transmission shaft bearing 24 and an umbrella-shaped elastic support fixing hole 25 are respectively installed at the center bottom and the edge of the base 23. On the umbrella-shaped elastic support fixing hole 25, a plurality of bendable umbrella-shaped elastic support thin rods 26 containing perforated umbrella beads 27 are movably and fixedly installed in a uniformly divergent manner. Two power driving devices, namely, a top cover lifting self-locking driving motor 19 and a reel self-locking driving motor 21, are installed on the base 23 and are connected to the "control circuit". The "control circuit" is as follows Figure 3 Composed of a top cover lifting self-locking driving motor 19, a reel self-locking driving motor 21, a DC power supply, a power supply polarity switching switch K1 (including contacts 1, 2, 3, 4, 5), a self-resetting normally open contact switch K2, a single-pass double-contact switch K3 (including contacts 6, 7), a self-resetting breakable normally closed switch K4, and a self-resetting breakable normally closed switch K5 connected by wires. As follows Figure 2 The motor gear 20 on the top cover lifting self-locking driving motor 19 forms a linkage with the hollow transmission shaft body 10 through the transmission shaft gear 12. The motor gear 22 on the reel self-locking driving motor 21 forms a linkage with the reel 6 through the reel gear ring 9; A limiting shaft core 13 is movably installed through the center position of the base 23. The limiting shaft core 13 is as follows Figure 4 A structure with an external spline 14 at the upper end, a cylindrical shaft body in the middle, and a square column body with a sliding groove 15 at the lower end. The upper and lower end faces of the groove on the square column body with a sliding groove 15 respectively form a travel switch circuit with the self-resetting breakable normally closed switch K4 and the self-resetting breakable normally closed switch K5 in the "control circuit"; Outside the limiting shaft core 13, a hollow transmission shaft body 10 with an external thread lifting shaft head 11 at the top and a transmission shaft gear 12 in the middle is movably sleeved. A reel bearing 7 and a reel 6 are sleeved outside the hollow transmission shaft body 10. The upper end of the outside of the reel 6 is fixed by a hanging buckle 8 and a hook binding rope 17 and is wound with a skirt-shaped soft tree cover main body 16. A water storage tank 18 is designed on the skirt-shaped soft tree cover main body 16; Inside the lower edge of the top cover 1, a rubber comb guide ring 5 is designed. The nut lifting tube 2 on the top cover 1 is in a spiral sliding combination with the thread lifting shaft head 11 on the hollow transmission shaft body 10. At the same time, the internal spline 4 on the top cover 1 is fixed to the external spline 14 on the limiting shaft core 13 through the shaft cover fixing screw 3, making the top cover 1 and the limiting shaft core 13 an integral body. Then, through the square column body with a sliding groove 15 at the lower end of the limiting shaft core 13 and the central square hole of the base 23, a radial up-and-down sliding combination is realized, and finally, all the above components form a linkage whole.

[0052] The linkage relationship between the rising of the "tree clothes" top cover and the unfolding of the tree cover is as follows

[0053] As follows Figure 3As shown; the positive pole of the DC power supply is connected to the contact 1 → contact 3 of the power supply polarity switching switch K1, the self-resetting normally open contact switch K2, the top cover lifting self-locking drive motor (19), and the self-resetting break-type normally closed switch K4 through a wire, and forms a loop with the contact 5 → contact 2 of the power supply polarity switching switch K1 and the negative pole of the DC power supply. When the self-resetting normally open contact switch K2 is closed, the loop is energized. The top cover lifting self-locking drive motor 19 on the base 23 rotates counterclockwise due to the reverse power supply of the positive and negative poles. From the composition relationship of the above main structure components, as Figure 2 When the top cover lifting self-locking drive motor 19 and the motor gear 20 rotate counterclockwise (viewed from top to bottom), through the linkage of the transmission shaft gear 12, it will drive the hollow transmission shaft body 10 and the threaded lifting shaft head 11 to rotate synchronously clockwise. When the threaded lifting shaft head 11 rotates clockwise, it will drive the nut lifting tube 2 on the top cover 1 to rise, and then drive the top cover 1, the limit shaft core 13 and the sliding groove square column body 15 at the lower end of the limit shaft core 13 to rise synchronously. When the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 rise synchronously to the predetermined opening position, the lower end surface of the sliding groove of the sliding groove square column body 15 will squeeze the self-resetting break-type normally closed switch K4 on the base 23 to disconnect due to the rise, and the top cover lifting self-locking drive motor 19 stops rotating, and the top cover 1 rises and opens. At the same time, as Figure 3 As shown; the positive pole of the DC power supply is connected to the contact 1 → contact 3 of the power supply polarity switching switch K1, the reel self-locking drive motor 21, and the contact 6 of the single-pass double-contact switch K3 through a wire, and forms a loop with the contact 5 → contact 2 of the power supply polarity switching switch K1 and the negative pole of the DC power supply. When the contact 6 of the single-pass double-contact switch K3 is closed, the loop is energized. As Figure 2 The reel self-locking drive motor 21 on the base 23 rotates clockwise due to the corresponding power supply of the positive and negative poles. The reel self-locking drive motor 21 and the motor gear 22 rotate clockwise, which will drive the reel gear ring 9 on the reel 6 to rotate clockwise, thereby driving the reel 6 and the skirt-shaped soft tree cover main body 16 fixedly wound on the reel 6 to rotate and open dispersedly.

[0054] The linkage relationship of the "tree clothes" top cover descending and the tree cover retracting components is:

[0055] As Figure 3 As shown; when the positive pole of the DC power supply is connected to the contact 1 → contact 4 of the power supply polarity switching switch K1, the self-resetting break-type normally closed switch K5, the top cover lifting self-locking drive motor, the self-resetting normally open contact switch K2, the contact 3 → contact 2 of the power supply polarity switching switch K1, and the negative pole of the DC power supply to form a loop, when the self-resetting normally open contact switch K2 is closed, the loop is energized. The top cover lifting self-locking drive motor 19 on the base 23 rotates clockwise due to the corresponding power supply of the positive and negative poles. From the composition relationship of the above main structure components, asFigure 2 When the top cover lifting self-locking drive motor 19 and the motor gear 20 rotate clockwise (viewed from above), through the linkage of the transmission shaft gear 12, the hollow transmission shaft body 10 and the threaded lifting shaft head 11 will be driven to rotate counterclockwise synchronously. When the threaded lifting shaft head 11 rotates counterclockwise, it will drive the nut lifting tube 2 on the top cover 1 to descend, and then drive the top cover 1, the limit shaft core 13 and the sliding groove square column body 15 at the lower end of the limit shaft core 13 to descend synchronously. When the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 descend to the predetermined opening position, the upper end face of the sliding groove of the sliding groove square column body 15 will squeeze and break the self-resetting normally closed switch K5 on the base 23 due to the descent, causing it to open. The top cover lifting self-locking drive motor 19 stops rotating, and the descent and closing of the top cover 1 are completed. At the same time, as Figure 3 shown, the positive pole of the DC DC power supply is connected to the power supply polarity changeover switch K1 (contact 1 → contact 4), the single-pass double-contact switch K3 (contact 7), and the reel self-locking drive motor 21 through wires, and the negative pole of the DC DC power supply forms a circuit through the power supply polarity changeover switch K1 (contact 3 → contact 2). When the single-pass double-contact switch K3 (contact 7) is closed, the circuit is energized, as Figure 2 the reel self-locking drive motor 21 on the base 23 rotates counterclockwise due to the reverse power supply of the positive and negative poles. The reel self-locking drive motor 21 of the reel and the motor gear 22 rotate counterclockwise, which will drive the reel gear ring 9 on the reel 6 to rotate counterclockwise, thereby driving the reel 6 and the skirt-shaped soft tree cover main body 16 fixedly wound on the reel 6 to rotate counterclockwise and wind up. Among them, the rubber comb guide ring 5 on the inner side of the lower edge of the top cover 1 and the upper edge of the base 23 are in frictional rolling combination, so that during the winding-up process of the skirt-shaped soft tree cover main body 16, it plays a role of obstructive auxiliary winding-up.

[0056] The above-mentioned "DC DC power supply" is powered by a solar cell, or a mobile storage battery, or an external power supply. The "control methods" of the above-mentioned "self-resetting normally open contact switch K2, closing the single-pass double-contact switch K3 (contact 6), closing the single-pass double-contact switch K3 (contact 7)" can be controlled by a manual wire control panel, a remote control, or a wireless centralized remote control.

[0057] The installation and use of a tree coat for preventing frost damage and hail to fruit trees are carried out in the following four steps:

[0058] (1) Installation and preparation of the "tree coat" in the orchard on duty before preventing frost damage and hail to fruit trees:

[0059] As Figure 5As shown, the height-adjustable hollow support rod J of the present invention is vertically and fixedly installed at the center position of the main trunk of the fruit tree. Adjust the height so that the box formed by the liftable protective high-arch top cover A and the base body H installed at the top of the height-adjustable hollow support rod J (including components: I-shaped reel B, hollow transmission shaft C, limit shaft core D, skirt-shaped soft tree cover E, top cover self-locking drive motor F, reel self-locking drive motor G, bendable umbrella-shaped elastic support I) is placed at an appropriate height at the top of the center of the fruit tree. Manually bend the bendable umbrella-shaped elastic support I on the outer edge of the base body H into an arc shape and manually wind and fix it on the outer branches of the fruit tree, so that the bendable umbrella-shaped elastic support I and the outer branches of the fruit tree form a lantern-shaped support structure, and the installation preparation is completed.

[0060] (2) Frost damage prevention for fruit trees:

[0061] When a short-term passing cold current is about to hit, according to scientific meteorological information such as local weather forecasts, fruit farmers need to open the tree clothes of the above-mentioned "on-duty orchard" in advance; at this time, the top cover 1 of the "frost damage and hail prevention tree clothes" in the on-duty orchard is in the lowered and closed state. The specific operation is as Figure 3 First, connect the DC power supply. Connect the positive pole of the DC power supply to the power supply polarity switching switch K1 (contact 1 → contact 3), the self-resetting normally open contact switch K2, the top cover lifting self-locking drive motor 19, and the self-resetting break-type normally closed switch K4 through wires, and then connect them to the power supply polarity switching switch K1 (contact 5 → contact 2) and the negative pole of the DC power supply to form a circuit. At this time, manually close the self-resetting normally open contact switch K2, and the circuit is energized. As Figure 2 shown, the top cover lifting self-locking drive motor 19 on the base 23 rotates counterclockwise due to the reverse power supply of the positive and negative poles. According to the linkage relationship of the above components, when the top cover lifting self-locking drive motor 19 and the motor gear 20 rotate counterclockwise (viewed from top to bottom), through the linkage of the transmission shaft gear 12, it will drive the hollow transmission shaft body 10 and the threaded lifting shaft head 11 to rotate clockwise synchronously. When the threaded lifting shaft head 11 rotates clockwise, it will drive the nut lifting tube 2 on the top cover 1 to rise, and then drive the top cover 1, the limit shaft core 13 and the sliding groove square column body 15 at the lower end of the limit shaft core 13 to rise synchronously. When the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 rise to the predetermined opening position, the lower end face of the groove of the sliding groove square column body 15 will squeeze the self-resetting break-type normally closed switch K4 on the base 23 to disconnect, and the top cover lifting self-locking drive motor 19 will stop rotating, and the top cover 1 will rise and open. At the same time, as Figure 3As shown, the positive pole of the DC power supply is connected to the power supply polarity switching switch K1 (contact 1 → contact 3), the reel self-locking drive motor 21, and the single-pass double-contact switch K3 (contact 6) through a wire, and is connected to the power supply polarity switching switch K1 (contact 5 → contact 2) and the negative pole of the DC power supply through a wire to form a circuit. When the single-pass double-contact switch K3 (contact 6) is manually closed, the circuit is energized. As Figure 1 shown, the reel self-locking drive motor 21 and the motor gear 22 on the base 23 rotate clockwise due to the corresponding power supply of the positive and negative poles. When the motor gear 22 rotates clockwise, it will drive the reel gear ring 9 on the reel 6 to rotate clockwise, thereby driving the skirt-shaped soft tree cover body 16 fixed on the reel 6 to slide and unfold around the pre-installed flexible umbrella-shaped elastic support rods 26. Continue to control the rotation of the reel self-locking drive motor 21, and manually assist to adjust the size of the skirt-shaped soft tree cover body 16 that has slid and unfolded to the state where the fruit tree can be completely wrapped. Tighten the binding rope to fix the lower edge of the skirt-shaped soft tree cover body 16 to the lower main trunk of the fruit tree, or press it to the ground along the edge of the tree cover with a heavy object, and the installation of the fruit tree frost damage prevention function is completed. At this time, close the top cover 1, and switch the power supply polarity switching switch K1 so that the positive pole of the DC power supply is connected to the power supply polarity switching switch K1 (contact 1 → contact 4), the self-resetting break-type normally closed switch K5, the top cover lifting self-locking drive motor 19, the self-resetting normally open contact switch K2, the power supply polarity switching switch K1 (contact 3 → contact 2), and the negative pole of the DC power supply to form a circuit. At this time, manually close the self-resetting normally open contact switch K2, and the circuit is energized. As Figure 2 The top cover lifting self-locking drive motor 19 on the base 23 rotates clockwise due to the corresponding power supply of the positive and negative poles. Through the above-mentioned component linkage relationship, it can be known that when the top cover lifting self-locking drive motor 19 and the motor gear 20 rotate clockwise (viewed from top to bottom), through the linkage of the transmission shaft gear 12, it will drive the hollow transmission shaft body 10 and the threaded lifting shaft head 11 to rotate synchronously counterclockwise. When the threaded lifting shaft head 11 rotates counterclockwise, it will drive the nut lifting tube 2 on the top cover 1 to descend, and then drive the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 at the lower end of the limit shaft core 13 to descend. When the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 descend to the predetermined opening position, the upper end surface of the sliding groove of the sliding groove square column body 15 will squeeze the self-resetting break-type normally closed switch K5 on the base 23 to disconnect, and the top cover lifting self-locking drive motor 19 stops rotating, and the top cover 1 descends and closes. At this time, the installed frost damage and hail prevention tree cover "shaped like clothes" can accurately prevent the frost damage caused by cold currents during the flowering period and young fruit period of fruit trees through the wrapped cover isolation structure.

[0062] (3)Hail prevention for fruit trees:

[0063] When short-term passing severe convective hail weather is about to strike, fruit farmers need to remotely open the tree cover of the "guarding orchard" within 1 minute. First, they need to centrally connect the DC power supply in advance, such as Figure 3 Make the positive pole of the DC power supply pass through a wire to the power supply polarity switching switch K1 (contact 1 → contact 3), the self-resetting normally open contact switch K2, the top cover lifting self-locking drive motor 19, and the self-resetting break-type normally closed switch K4 pass through a wire to the power supply polarity switching switch K1 (contact 5 → contact 2), and the negative pole of the DC power supply to form a circuit. When remotely controlling the self-resetting normally open contact switch K2, the circuit is energized. Such as Figure 2 As shown, the top cover lifting self-locking drive motor 19 on the base 23 rotates counterclockwise due to reverse power supply of the positive and negative poles. Through the linkage relationship of the above components, when the top cover lifting self-locking drive motor 19 and the motor gear 20 rotate counterclockwise (looking down from top to bottom), through the linkage of the transmission shaft gear 12, it will drive the hollow drive shaft body 10 and the threaded lifting shaft head 11 to rotate clockwise synchronously. When the threaded lifting shaft head 11 rotates clockwise, it will drive the nut lifting tube 2 on the top cover 1 to rise, and then drive the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 at the lower end of the limit shaft core 13 to rise. When the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 rise to the predetermined opening position, the lower end surface of the sliding groove of the sliding groove square column body 15 will squeeze the self-resetting break-type normally closed switch K4 on the base 23 to disconnect due to the rise, and the top cover lifting self-locking drive motor 19 stops rotating, and the top cover 1 rises and opens. At the same time, such as Figure 3 As shown, the positive pole of the DC power supply passes through a wire to the power supply polarity switching switch K1 (contact 1 → contact 3), the reel self-locking drive motor 21, and the single-pass double-contact switch K3 (contact 6) pass through a wire to the power supply polarity switching switch K1 (contact 5 → contact 2), and the negative pole of the DC power supply to form a circuit. When remotely controlling to close the single-pass double-contact switch K3 (contact 6), the circuit is energized, such as Figure 2 As shown, the reel self-locking drive motor 21 and the motor gear 22 on the base 23 rotate clockwise due to corresponding power supply of the positive and negative poles. When the motor gear 22 rotates clockwise, it will drive the reel gear ring 9 on the reel 6 to rotate clockwise, thereby driving the skirt-shaped soft tree cover main body 16 fixed on the reel 6 to slide and unfold around the pre-installed bendable umbrella-shaped elastic support thin rod 26. When the size of the skirt-shaped soft tree cover main body 16 that has slid and unfolded is fully unfolded, its shape is like an umbrella structure. When rain mixed with hail falls to the ground, the rain will first fill the water storage tank 18 at the lower edge of the bell-shaped skirt structure tree cover. Under the gravity of the rain, it can prevent the strong wind from lifting the tree cover, and at this time, the hail protection function of the fruit tree is fully opened. At this time, remotely switch the power supply polarity switching switch K1, such as Figure 3Connect the positive pole of the DC power supply to the power supply polarity switching switch K1 (contact 1 → contact 4), self-resetting break-type normally closed switch K5, top cover lifting self-locking drive motor 19, self-resetting normally open contact switch K2, power supply polarity switching switch K1 (contact 3 → contact 2), and the negative pole of the DC power supply through a wire to form a circuit. At this time, remotely close the self-resetting normally open contact switch K2, and the circuit is energized. As Figure 2 The top cover lifting self-locking drive motor 19 on the base 23 rotates clockwise due to the corresponding power supply of the positive and negative poles. According to the linkage relationship of the above components, when the top cover lifting self-locking drive motor 19 and the motor gear 20 rotate clockwise (viewed from top to bottom), through the linkage of the transmission shaft gear 12, the hollow drive shaft body 10 and the threaded lifting shaft head 11 will be driven to rotate counterclockwise synchronously. When the threaded lifting shaft head 11 rotates counterclockwise, it will drive the nut lifting tube 2 on the top cover 1 to descend, and then drive the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 at the lower end of the limit shaft core 13 to descend. When the top cover 1, the limit shaft core 13, and the sliding groove square column body 15 descend to the predetermined opening position, the upper end surface of the sliding groove of the sliding groove square column body 15 will squeeze the self-resetting break-type normally closed switch K5 on the base 23 to disconnect due to the descent, and the top cover lifting self-locking drive motor 19 stops rotating, and the top cover 1 descends and closes. At this time, the installed frost and hail protection tree cover "shaped like an umbrella" uses an umbrella-shaped elastic barrier structure to buffer and resist the physical vertical attack of hail, reducing the degree of crop disaster.

[0064] (4) "Tree cover" recycling:

[0065] After the short-term passing cold current and strong convective hail weather, when the fruit farmer recycles the tree cover, the top cover 1 of the fruit tree frost and hail protection tree cover is in the downward closing state. As Figure 3 shown, connect the positive pole of the DC power supply to the power supply polarity switching switch K1 (contact 1 → contact 4), single-pass double-contact switch K3 (contact 7), and the reel self-locking drive motor 21 through a wire to the power supply polarity switching switch K1 (contact 3 → contact 2) and the negative pole of the DC power supply to form a circuit. Untie the contraction rope at the lower edge of the skirt-shaped soft tree cover E (this operation is not required for the fruit tree hail protection function), and when the single-pass double-contact switch K3 (contact 7) is closed, the circuit is energized. As Figure 2 The reel self-locking drive motor 21 on the base 23 rotates counterclockwise due to the reverse power supply of the positive and negative poles. When the reel self-locking drive motor 21 and the motor gear 22 rotate counterclockwise, they will drive the reel gear ring 9 on the reel 6 to rotate counterclockwise, thereby driving the reel 6 and the skirt-shaped soft tree cover main body 16 fixedly wound on the reel 6 to wind and retract counterclockwise. Among them, the rubber comb guide ring 5 on the inner side of the lower edge of the top cover 1 and the upper edge of the base 23 are in rolling combination, so that during the winding and retracting process of the skirt-shaped soft tree cover main body 16, it plays a blocking and auxiliary winding role.

Claims

1. A fruit tree frost and hail protection tree cover, whose main structure consists of a liftable protective high-arch top cover A, an I-shaped reel B, a hollow transmission shaft C, a limit shaft core D, a skirt-shaped soft tree cover E, a top cover self-locking drive motor F, a reel self-locking drive motor G, a base main body H, a bendable umbrella-shaped elastic support I, a height-adjustable hollow support rod J and a "control circuit"; The liftable protective high-arch top cover A consists of a top cover (1), a nut lifting tube (2), a screw (3), an internal spline of the top cover (4), and a rubber comb guide ring (5); The I-shaped reel B consists of a reel (6), a reel bearing (7), a hanging buckle (8), and a reel gear ring (9); The hollow transmission shaft C consists of a hollow transmission shaft body (10), a threaded lifting shaft head (11), and a transmission shaft gear (12); The limit shaft core D consists of a limit shaft core (13), an external spline (14), and a sliding groove square column (15); The skirt-shaped soft tree cover E consists of a skirt-shaped soft tree cover main body (16), a hook binding rope (17), and a water storage tank (18); The top cover self-locking drive motor F consists of a top cover lifting self-locking drive motor (19) and a motor gear A (20); The reel self-locking drive motor G consists of a reel self-locking drive motor (21) and a motor gear B (22); The base main body H consists of a base (23), a transmission shaft bearing (24), and an umbrella-shaped elastic support fixing card hole (25); The bendable umbrella-shaped elastic support I consists of a bendable umbrella-shaped elastic support thin rod (26) and a perforated umbrella bead (27); The height-adjustable hollow support rod J consists of a support rod (28), a lifting sleeve (29), and a locking pin (30); Its characteristics are At the top of the support rod (28) with a lifting sleeve (29) and a locking pin (30), a box body composed of a top cover (1) and a base (23) is installed. A transmission shaft bearing (24) and an umbrella-shaped elastic support fixing hole (25) are respectively installed at the center bottom and the edge of the base (23). A plurality of bendable umbrella-shaped elastic support thin rods (26) with perforated umbrella beads (27) are movably and fixedly installed on the umbrella-shaped elastic support fixing hole (25) in a uniformly divergent manner. Two power drive devices, namely, a top cover lifting self-locking drive motor (19) and a reel self-locking drive motor (21), are installed on the base (23) and are connected to the "control circuit". The "control circuit" is composed of a top cover lifting self-locking drive motor (19), a reel self-locking drive motor (21), a DC power supply, the contacts 1, 2, 3, 4, 5 of a power supply polarity changeover switch K1, a self-resetting normally open contact switch K2, the contacts 6, 7 of a single-pass double-contact switch K3, a self-resetting break-type normally closed switch K4, and a self-resetting break-type normally closed switch K5, which are connected by wires. The motor gear A (20) on the top cover lifting self-locking drive motor (19) forms a linkage with the hollow transmission shaft body (10) through a transmission shaft gear (12). The motor gear B (22) on the reel self-locking drive motor (21) forms a linkage with the reel (6) through a reel gear ring (9). A limit shaft core (13) is movably and penetratingly installed at the center position of the base (23). The limit shaft core (13) has a structure with an external spline (14) at the upper end, a circular shaft-shaped shaft body in the middle, and a square column body with a sliding groove (15) at the lower end. The upper and lower end faces of the groove on the square column body with a sliding groove (15) respectively form a travel switch circuit with the self-resetting break-type normally closed switch K4 and the self-resetting break-type normally closed switch K5 in the "control circuit". An outer side of the limit shaft core (13) is movably sleeved with a hollow transmission shaft body (10) with a threaded lifting shaft head (11) at the top and a transmission shaft gear (12) in the middle. A reel bearing (7) and a reel (6) are sleeved on the outer side of the hollow transmission shaft body (10). The upper outer side of the reel (6) is fixed by a hanging buckle (8) and a hook binding rope (17) and is wound with a skirt-shaped soft tree cover body (16). A water storage tank (18) is designed on the skirt-shaped soft tree cover body (16). An inner side of the lower edge of the top cover (1) is designed with a rubber comb guide ring (5). The nut lifting pipe (2) on the top cover (1) is in a spiral sliding combination with the threaded lifting shaft head (11) on the hollow transmission shaft body (10). At the same time, the inner spline (4) on the top cover (1) is fixed to the external spline (14) on the limit shaft core (13) by a screw (3), so that the top cover (1) and the limit shaft core (13) become an integral body. Then, through the square column body with a sliding groove (15) at the lower end of the limit shaft core (13) and the central square hole of the base (23), a radial up-and-down sliding combination is realized, and finally all the above components form a linkage integral body;The positive pole of the DC power supply is connected to the contact 1→3 positive pole of the power supply polarity change switch K1, the self-resetting normally open contact switch K2, the top cover lifting self-locking drive motor (19), and the self-resetting break-type normally closed switch K4 through a wire, and is connected to the contact 5→contact 2 of the power supply polarity change switch K1 and the negative pole of the DC power supply to form a circuit. When the self-resetting normally open contact switch K2 is closed, the circuit is energized. The top cover lifting self-locking drive motor (19) on the base (23) rotates counterclockwise due to the reverse power supply of the positive and negative poles. Through the above composition relationship of the main structural components, when the top cover lifting self-locking drive motor (19) and the motor gear A (20) rotate counterclockwise, through the linkage of the transmission shaft gear (12), it will drive the hollow transmission shaft body (10) and the threaded lifting shaft head (11) to rotate synchronously clockwise; when the threaded lifting shaft head (11) rotates clockwise, it will drive the nut lifting tube (2) on the top cover (1) to rise, and then drive the top cover (1), the limit shaft core (13), and the sliding groove square column body (15) at the lower end of the limit shaft core (13) to rise synchronously; when the top cover (1), the limit shaft core (13), and the sliding groove square column body (15) rise synchronously to the predetermined opening position, the lower end surface of the sliding groove of the sliding groove square column body (15) will squeeze the self-resetting break-type normally closed switch K4 on the base (23) to disconnect, and the top cover lifting self-locking drive motor (19) stops rotating, and the top cover (1) rises and opens to complete; at the same time, the positive pole of the DC power supply is connected to the contact 1→contact 3 of the power supply polarity change switch K1, the reel self-locking drive motor (21), and the contact 6 of the single-pass double-contact switch K3 through a wire, and is connected to the contact 5→contact 2 of the power supply polarity change switch K1 and the negative pole of the DC power supply to form a circuit; When the contact 6 of the closed single-pass double-contact switch K3 is closed, the circuit is energized, and the reel self-locking drive motor (21) on the base (23) rotates clockwise due to the corresponding positive and negative power supply. The reel self-locking drive motor (21) and the motor gear B (22) rotate clockwise, which will drive the reel gear ring (9) on the reel (6) to rotate clockwise, thereby driving the reel (6) and the skirt-shaped soft tree cover main body (16) fixedly wound on the reel (6) to rotate clockwise and disperse and open; When the positive pole of the DC power supply is connected to the contact 1 → contact 4 of the power supply polarity switching switch K1, the self-resetting voltage-breaking normally closed switch K5, the top cover lifting self-locking drive motor (19), the self-resetting normally open contact switch K2, the contact 3 → contact 2 of the power supply polarity switching switch K1, and the negative pole of the DC power supply to form a loop, close the self-resetting normally open contact switch K2, and the loop is energized; the top cover lifting self-locking drive motor (19) on the base (23) rotates clockwise due to the corresponding power supply of the positive and negative poles. According to the composition relationship of the above main structural components, when the top cover lifting self-locking drive motor (19) and the motor gear A (20) rotate clockwise, through the linkage of the transmission shaft gear (12), it will drive the hollow transmission shaft body (10) and the threaded lifting shaft head (11) to rotate counterclockwise synchronously; when the threaded lifting shaft head (11) rotates counterclockwise, it will drive the nut lifting tube (2) on the top cover (1) to descend, and then drive the top cover (1), the limit shaft core (13), and the sliding groove square column body (15) at the lower end of the limit shaft core (13) to descend synchronously. When the top cover (1), the limit shaft core (13), and the sliding groove square column body (15) descend to the predetermined opening position, the upper end surface of the sliding groove of the sliding groove square column body (15) will squeeze the self-resetting voltage-breaking normally closed switch K5 on the base (23) to disconnect due to the descent, and the top cover lifting self-locking drive motor (19) stops rotating, and the top cover (1) descends and closes; at the same time, the positive pole of the DC power supply is connected to the contact 1 → contact 4 of the power supply polarity switching switch K1, the contact 7 of the single-pass double-contact switch K3, the reel self-locking drive motor (21) is connected to the contact 3 → contact 2 of the power supply polarity switching switch K1, and the negative pole of the DC power supply to form a loop; when the contact 7 of the single-pass double-contact switch K3 is closed, the loop is energized; the reel self-locking drive motor (21) on the base (23) rotates counterclockwise due to the reverse power supply of the positive and negative poles. The reel self-locking drive motor (21) and the motor gear B (22) rotate counterclockwise, which will drive the reel gear ring (9) on the reel (6) to rotate counterclockwise, thereby driving the reel (6) and the skirt-shaped soft tree cover body (16) fixedly wound on the reel (6) to rotate counterclockwise and wind up. Among them, the rubber comb guide ring (5) on the inner side of the lower edge of the top cover (1) and the upper edge of the base (23) are in frictional rolling combination; Installation and preparation of "tree clothes" in the orchard before protecting fruit trees from frost damage and hail: vertically fix the height-adjustable hollow support rod J to the center of the main rod of the fruit tree, adjust the height, so that the box body composed of the liftable protective high arch cover A and the base body H installed on the top of the height-adjustable hollow support rod J, the box body contains the following components: I-shaped reel B, hollow transmission shaft C, limit shaft core D, skirt-type soft tree cover E, top cover self-locking drive motor F, reel self-locking drive motor G, bendable umbrella-shaped elastic bracket I, place the box body at an appropriate height at the center top of the fruit tree, bend the bendable umbrella-shaped elastic bracket I on the outer edge of the base body H into an arc, and wrap it around and fix it on the outer branches of the fruit tree, so that the bendable umbrella-shaped elastic bracket I and the outer branches of the fruit tree form a lantern-shaped bracket structure, and the installation preparation is complete.

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