CN112219628B

CN112219628B - Fruit tree hail prevention device and using method thereof

Info

Publication number: CN112219628B
Application number: CN202011110355.8A
Authority: CN
Inventors: 董芳霞
Original assignee: Dongying Jingchen Garden Co ltd
Current assignee: Dongying Jingchen Garden Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-05-31
Anticipated expiration: 2040-10-16
Also published as: CN112219628A

Abstract

The invention provides a fruit tree hail suppression device which comprises a first mounting seat, a second mounting seat, a protective cover and a driving assembly, wherein the protective cover is mounted between the first mounting seat and the second mounting seat, the driving assembly is mounted on the first mounting seat and comprises a motor and a speed reducer, and the protective cover is opened through the rotation of the motor to play a role in protecting fruit trees in hail weather. This device adopts the action of long-range automatic control hail suppression device, need not artifical direct operation, improves operating efficiency, adopts the wireless receiving element of initiative in its control system to and passive sensor receiving element, trigger the opening of controller control protection casing, greatly ensure fruit tree safety.

Description

Fruit tree hail prevention device and using method thereof

Technical Field

The invention relates to the technical field of agricultural equipment, in particular to an agricultural fruit tree hail protection device and a using method thereof.

Background

Shandong province is a region with centralized fruit tree planting, and is used for producing apples, cherries, persimmons, pears and the like. However, due to meteorological reasons, the fruit yield is lost to different degrees due to factors such as rainstorm, hail and the like in partial areas every year, and fruit tree seedlings are also damaged. The method has important value for the research of the meteorological disaster defense and protection, so that the fruit trees have better growth and development environment, the fruit yield is improved, new fruit tree varieties are introduced.

Patent publication CN107517791A discloses a fruit tree hail-suppression umbrella, and the device adopts and installs rotatory arc support on a fixed main prop, opens rotatory arc support during the use, covers hail-suppression net again. The device has the problems that the first main strut is fixed on one side of the fruit tree and cannot well protect the fruit tree, if the main strut is fixed in the middle of the fruit tree, the fruit tree can be well protected, but the main strut is not easy to install, and the root system of the fruit tree can be damaged if a foundation needs to be made; the second device needs manual operation in the use process, fruit trees in an orchard generally have hundreds of fruit trees, and time is consumed by adopting manual operation completely.

Patent publication CN106577063A discloses an intelligent telescopic fruit tree hail-suppression design mechanism in an inverted 'V' shape. The hail-suppression protection net is formed by adopting 6 upright posts, a steel wire rope hail net and the like, wherein two upright posts are 10 meters long, four upright posts are about 7 meters long, and the upright posts are poured by concrete to form the hail-suppression protection net which is 30-40 meters long and is in a large inverted V shape. The device can realize that single workman will hail protection network expand fast, raises the efficiency, but has following shortcoming: the first device needs to be matched with foundation construction, and concrete pouring is carried out in the orchard to influence the soil quality of the orchard; a plurality of 10m and 7m upright posts are arranged in the second orchard and have influence on the growth of fruit trees; the third whole protection process is realized by manual operation, and the manual operation efficiency for a larger orchard is low.

Fruit tree hail protector among the prior art basically has following two problems:

at present, the existing protection devices are manually operated to open and close the protection devices, and when a hail disaster occurs, the manual operation time is too long for an orchard with a large scale, so that a large amount of loss can be caused.

Secondly, what time the fruit tree protector opens, there is not similar solution in the current device.

Disclosure of Invention

The present invention is directed to solving at least one of the above problems.

A fruit tree hail suppression device comprises a first mounting seat, a second mounting seat and a protective cover arranged between the first mounting seat and the second mounting seat, and is characterized by further comprising a driving assembly arranged on the first mounting seat and comprising a motor and a speed reducer,

the protective cover comprises arc supports, protective cloth which covers the supports and is connected with the supports, and rotating shafts, a plurality of arc supports are arranged on the protective cover, the radii of the arc supports are sequentially increased from inside to outside, two ends of all the arc supports are respectively arranged on the two rotating shafts, the arc support on the outermost layer is fixedly connected with the rotating shafts, and other arc supports are rotationally connected with the rotating shafts,

the first mounting seat and the second mounting seat are provided with a bottom plate and mounting plates, two mounting plates are vertically mounted on each bottom plate in parallel, shaft holes are formed in the mounting plates, two rotating shafts respectively penetrate through the shaft holes and are mounted on the mounting plates,

the output shaft of speed reducer is connected with the pivot of installing on first mount pad, relies on the rotation drive pivot of motor and outmost arc to support and rotates, and the arc is supported and is rotated in proper order through the protection cloth tractive between the arc.

A fruit tree hail suppression device, still includes: a limit component which is arranged on the mounting plate at the inner side of the first mounting seat and comprises a limit stopper and a limit switch,

the position limiter consists of three parts, namely a fixed plate, a vertical plate vertically connected with the fixed plate, and an inclined plate vertically connected with the vertical plate and forming a fixed angle with the fixed plate,

the limit switch is vertically arranged on the inclined plate,

when the motor-driven protective cover is completely opened, the arc support on the innermost layer is contacted with the limit switch, and after the limit switch fails, the inclined plate serves as a mechanical limit to limit the arc support on the innermost layer to continue rotating.

A fruit tree hail suppression device, still includes: the hail detection assembly is arranged on the first mounting seat, a collector is arranged above the hail detection assembly, an inlet on the collector is open, an outlet at the bottom of the collector is connected with the mixing channel, two outlets, namely a rainwater outlet and a via hole, are arranged at the bottom of the mixing channel,

the mixing channel is communicated with the outside through a rainwater outlet, the mixing channel enters the hail channel through a via hole, the outlet at the bottom of the hail channel is a hail outlet, the hail channel is communicated with the outside through the hail outlet,

the bottom of the mixing channel is provided with a separator, the separator consists of cross bars and gaps which are arranged alternately, the separator separates rainwater from hail, one side of the separator close to the via hole is lower than the other side of the separator far away from the via hole,

the bottom edge of the rainwater outlet is connected with the bottom edge of the through hole through a first inclined plane, the bottom edge of the through hole is higher than the bottom edge of the rainwater outlet, rainwater is discharged from the rainwater outlet through the first inclined plane,

the hail path transitions through the second incline to a hail exit from which the hail exits.

Hail detection assembly includes: an impeller and a rotation sensor, wherein the impeller is arranged on the impeller,

the impeller is provided with a plurality of blades, hailstones separated by the separator fall on the blades of the impeller firstly after entering the hailstone channel to drive the impeller to rotate,

the rotation sensor is installed outside hail detection subassembly, and its pivot is connected with the impeller, and under impeller pivoted drive, rotation sensor produces the signal of telecommunication.

Furthermore, the first mounting seat and the second mounting seat further comprise fixing support legs arranged below the bottom plate, the fixing support legs are buried in soil, and the bottom of the fixing support legs are three-jaw clamps clamped in the soil to fix the bottom plate.

A fruit tree hail suppression device, still includes: control box, it is installed on first mount pad, and inside includes:

the power supply is used for supplying electric energy to the internal elements of the control box;

a control unit for processing the received signal;

the wireless receiving unit receives the wireless signal, processes the signal and sends the processed signal to the control unit;

the sensor receiving unit is used for receiving the signal sent by the rotation sensor, processing the signal and sending the signal to the control unit;

the judging unit is used for receiving the signal sent by the limit switch, processing the signal and sending the signal to the control unit;

and the output unit receives the instruction of the control unit and drives the motor to rotate.

Furthermore, the output unit has multi-channel driving capability and can drive a plurality of motors to act simultaneously.

A using method of a fruit tree hail suppression device uses the fruit tree hail suppression device, and comprises the following steps:

s1: the orchard worker actively makes a judgment according to the actual weather condition, sends an instruction to the wireless receiving unit through the wireless terminal, and the wireless receiving unit receives the signal and then transmits the signal to the control unit;

s2: when the hail detection assembly detects that hail enters, the impeller drives the rotary sensor to rotate, and the rotary sensor generates an electric signal and sends the electric signal to the control unit;

s3: and working in parallel, the signals sent by the two steps are subjected to OR operation in the control unit, and the control unit is triggered to send a hail prevention command by receiving a hail signal in any one of the steps S1 and S2;

s4: the control unit controls the output of the output unit, the output unit drives the motor to rotate, the motor amplifies the torque through the speed reducer and then drives the rotating shaft and the outermost arc-shaped supports to rotate, and the arc-shaped supports are pulled by the protective cloth to rotate in sequence;

s5: the judging unit detects whether the limit switch acts, when the limit switch acts, the arc-shaped support at the innermost layer is in contact with the limit switch, the protective cover is completely opened, and the next step is executed; when the limit switch does not act, the operation returns to S4, and the control unit continues to control the output of the output unit;

s5: the control unit closes the output of the control output unit, the motor stops rotating, and the protective cover is completely opened.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a combination of a first mount, a drive assembly, a hail detection assembly, a control box and a stop assembly in accordance with the present invention;

FIG. 3 is a schematic structural view of a spacing assembly of the present invention;

FIG. 4 is a schematic view of the internal construction of the hail detection assembly of the present invention;

FIG. 5 is a schematic view of the overall construction of the hail detection assembly of the present invention;

FIG. 6 is a schematic view of the separator of the present invention;

FIG. 7 is a schematic view of a first mounting base according to the present invention;

FIG. 8 is a schematic view of a second mounting base according to the present invention;

FIG. 9 is a schematic view of the protective cover of the present invention;

FIG. 10 is a schematic view of the internal module of the control box of the present invention;

FIG. 11 is a flow chart of the operation of the fruit tree hail suppression device of the present invention;

FIG. 12 is a view of an embodiment of the present invention with the shield retracted;

fig. 13 is a view of an embodiment of the present invention with the hood fully open.

Description of reference numerals:

1. a first mounting seat 2, a second mounting seat 3, a protective cover 4, a driving component 5, a hail detection component 6, a control box 7 and a limit component,

11. a bottom plate 12, a mounting plate 13, a fixed supporting leg,

121. the shaft hole is provided with a shaft hole,

131. a three-jaw clamp is arranged on the upper end of the handle,

31. arc-shaped support 32, protective cloth 33, rotating shaft,

41. a motor, a speed reducer and a motor 42,

51. collector, 52, mixing channel, 53, separator, 54, first incline, 55, rain outlet, 56, via, 57, hail channel, 58, second incline, 59, hail outlet,

501. the impeller, 502, the rotation sensor,

531. the cross bar, 532, the gap,

61. a control unit, 62, a wireless receiving unit, 63, a sensor receiving unit, 64, a judging unit, 65, an output unit,

71. a position limiter 72, a position limit switch,

711. a fixed plate, 712, a vertical plate, 713, a sloping plate.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Example 1:

the embodiment provides a fruit tree hail suppression device, which comprises a first mounting seat 1, a second mounting seat 2 and a protective cover 3 arranged between the first mounting seat and the second mounting seat, and is characterized by further comprising a driving assembly 4 arranged on the first mounting seat 1, wherein the driving assembly 4 comprises a motor 41 and a speed reducer 42,

the protective cover 3 comprises an arc support 31, protective cloth 32 covering the support 31 and connected with the support 31, and a rotating shaft 33, the protective cover 3 is provided with a plurality of arc supports 31, the radiuses of the arc supports 31 are sequentially increased from inside to outside, two ends of each arc support 31 are respectively arranged on the two rotating shafts 33, the arc support 31 on the outermost layer is fixedly connected with the rotating shaft 33, the other arc supports 31 are rotatably connected with the rotating shaft 33,

the first mounting seat 1 and the second mounting seat 2 are provided with a bottom plate 11 and mounting plates 12, two mounting plates 12 are vertically mounted on each bottom plate 11 in parallel, the mounting plates 12 are provided with shaft holes 121, two rotating shafts 33 respectively pass through the shaft holes 121 and are mounted on the mounting plates 12,

an output shaft of the speed reducer 42 is connected with a rotating shaft installed on the first installation seat 1, the rotating shaft 33 and the outermost arc-shaped supports 31 are driven to rotate by means of rotation of the motor 41, and the arc-shaped supports 31 rotate sequentially through traction of the protective cloth 32.

In the embodiment, the motor 41 is adopted to control and drive the opening and closing of the protective cover 3, so that the manual operation is avoided, the labor intensity is reduced, and most importantly, all hail protection devices can be automatically and rapidly opened in an emergency.

In addition, the protective cover 3 can cover the fruit trees when being opened, as shown in fig. 13, the fruit trees and fruits are prevented from being damaged by hail; when the protective cover 3 is closed, as shown in fig. 12, the protective cover 3 lies on the ground at one side of the fruit tree, and the lighting of the fruit tree is not affected.

Example 2:

the present embodiment provides a fruit tree hail suppression device in addition to the content of the previous embodiment, further comprising: a limit component 7 which is arranged on the mounting plate 12 at the inner side of the first mounting seat 1 and comprises a limit stopper 71 and a limit switch 72,

the stopper 71 is composed of three parts, which are a fixing plate 711, a vertical plate 712 vertically connected to the fixing plate 711, and an inclined plate 713 vertically connected to the vertical plate 712 and forming a fixed angle with the fixing plate 711,

the limit switch 72 is vertically installed on the inclined plate 713,

when the motor 41 drives the shield 3 to be fully opened, the arc-shaped support 31 at the innermost layer is in contact with the limit switch 72, and after the limit switch 72 fails, the inclined plate 713 serves as a mechanical limit to limit the arc-shaped support 31 at the innermost layer to continue rotating.

In this embodiment, the limit switch 72 is used as a component for automatically detecting whether the protection cover 3 is opened, and provides a basis for the execution condition of the motor 41.

The angle of the inclined plate 713 in the stopper 71 is adopted to determine the opening angle of the protective cover 3, the angle of the inclined plate 713 and the fixing plate 711 is changed, and the position of the protective cover 3 after being opened can be adjusted to adapt to the protection of different fruit trees.

The other function of the stopper 71 is to perform a mechanical limiting function, and after the limit switch 72 fails, the stopper 71 can prevent the protective cover 3 from rotating excessively, and the inclined plate 713 supports the arc-shaped support 31 at the innermost layer at a fixed angle.

Example 3:

the present embodiment provides a fruit tree hail suppression device, including any one of the above embodiments: hail detection assembly 5, it is installed on first mount 1, hail detection assembly 5 sets up collector 51 above, the entry is opened on collector 51, its bottom outlet is connected with mixing channel 52, there are two exports in mixing channel 52 bottom, respectively rainwater export 55 and via hole 56, mixing channel 52 leads to the outside through rainwater export 55, mixing channel 52 gets into hail passageway 57 through via hole 56, hail passageway 57 bottom export is hail export 59, hail passageway 57 leads to the outside through hail export 59, mixing channel 52 bottom is provided with separator 53, separator 53 is alternate by crosspiece 531 and clearance 532, separator 53 separates rainwater and hail, separator 53 is close to via hole 56 side and is less than the side of keeping away from via hole 56 and is installed, the bottom edge of outlet 55 connects with via hole 56 bottom edge through first inclined plane 54, rainwater outlet 56 bottom edge is higher than rainwater export 55 bottom edge, rainwater is discharged from rainwater outlet 55 at first inclined surface 54, hail path 57 transitions to hail outlet 59 at second inclined surface 58, and hail is discharged from second inclined surface 58 to hail outlet 59.

The present embodiment provides a specific hail detection assembly, which employs a split flow design to distinguish rain from hail,

when a hail disaster occurs, typically a hail will occur with a storm, collectors 51 may collect rain and hail, the collected rain and hail enter mixing channel 52, at separator 53, rain falls on first inclined surface 54 through gap 532 and exits from rain outlet 55 along inclined surface 54, hail enters hail channel 57 from through hole 56 along separator 53 and exits from hail outlet 59 through second inclined surface 58,

it is thus clear that whether the hail appears to use above-mentioned hail detection assembly 5 can detect the current situation under, separator 53 can filter the hail, prevents rainy weather, and the rainwater gets into hail passageway 57, and if current weather is rainy day, the rainwater is then discharged completely from the rainwater passageway, if mix with the hail in the rainwater, then can separate the two.

Example 4:

in addition to the foregoing embodiments, the present embodiment further provides a hail detection assembly 5 comprising: impeller 501 and rotation sensor 502, impeller 501 is last to be provided with a plurality of blades, and the hail that separator 53 separated gets into hail passageway 57 after, falls on impeller 501's blade earlier, drives impeller 501 and rotates, and rotation sensor 502 installs in hail detection component 5 outside, and its pivot is connected with impeller 501, and under impeller 501 pivoted drive, rotation sensor 502 produces the signal of telecommunication.

In this embodiment, a specific hail detection method is provided, the impeller 501 is driven to rotate by the self gravity of hail, the impeller 501 rotates to drive the rotating shaft of the rotating sensor 502 to rotate, the rotating sensor 502 generates corresponding electrical signals immediately, the rotating sensor 502 is in the prior art, the output type of the rotating sensor 502 includes pulse-shaped output, resistance-type output and the like, and workers in the field can select the rotating sensor 502 with different signals to generate corresponding electrical signals.

Example 5:

in addition to the content of any one of the preceding embodiments, the present embodiment further provides a fruit tree hail suppression device, where the first installation seat 1 and the second installation seat 2 further include a fixing support leg 13 disposed below the bottom plate 11, the fixing support leg 13 is buried in the soil, and the bottom of the fixing support leg 13 is a three-jaw clamp 131 clamped in the soil to fix the bottom plate 11.

In the embodiment, a specific fixing support leg 13 is provided, which is actually a buried three-jaw clamp 131, in the actual installation process, the first installation seat 1 and the second installation seat 2 do not need to be dug in an orchard or corresponding basic construction work, and only a worker needs to press the first installation seat 1 and the second installation seat 2 downwards into soil for fixing,

the front end of the three-jaw clamp 131 is of a conical structure, and in the process of pressing down, the conical surface at the bottom of the three-jaw clamp 131 is stressed laterally by soil, so that the three-jaw clamp 131 is contracted into a cone, which is beneficial for the fixing support legs 13 to enter the soil,

after the fixed support legs 13 completely enter the soil, the three-jaw clamps 131 restore by self elasticity, and can play a role in expansion, and in addition, the conical structure at the front ends of the three-jaw clamps 131 can hook the soil layer like hooks, so that the fixed support legs 13 are fixed in the soil.

Example 6:

the present embodiment provides a fruit tree hail suppression device in addition to any one of the foregoing embodiments, further comprising: a control box 6 mounted on the first mounting base 1, including therein: the power supply is used for supplying electric energy to the internal elements of the control box; a control unit 61 that processes the received signal; a wireless receiving unit 62 for receiving wireless signals, processing the signals and transmitting the processed signals to the control unit 61; a sensor receiving unit 63 for receiving the signal transmitted by the rotation sensor 502 and processing and transmitting the signal to the control unit 61; the judging unit 64 receives the signal sent by the limit switch 72, processes the signal and sends the signal to the control unit 61; the output unit 65 receives the instruction from the control unit 61 and drives the motor 41 to rotate.

In this embodiment, two sets of receiving units, namely a wireless receiving unit 62 and a sensor receiving unit 63, are adopted, and signals generated by the two units can trigger the control unit 61 to send a command to drive the motor to open the protective cover 3,

the difference between the wireless receiving unit 62 and the sensor receiving unit 63 is that the wireless receiving unit 62 is used as an active scheme, and is used for judging that the wireless terminal is adopted to send an instruction to the wireless receiving unit 62 by orchard workers according to local weather early warning before hail disasters occur, the controller 61 drives the motor to open the protective cover 3 according to the instruction, and the receiving unit controls the system to perform protection action before the hail disasters occur so as to avoid loss;

sensor receiving element 63 for orchard work managers misjudge or the management neglect, protective cover 3 is not opened in time, sensor receiving element 63 is as passive scheme, when hail detecting element 5 detects that the hail enters, impeller 501 drives rotary sensor 502 and rotates, rotary sensor 502 produces the signal of telecommunication and sends sensor receiving element 63, controller 61 opens protective cover 3 according to instruction driving motor, this receiving element is after the hail calamity takes place, control system makes the protection action, the purpose reduces the loss.

Example 7:

in addition to the foregoing embodiments, the present embodiment further provides a fruit tree hail suppression device, preferably, the output unit 65 has multiple driving capabilities, and can drive the plurality of motors 41 to operate simultaneously.

In the embodiment, a plurality of fruit tree hail suppression devices are required to be installed in the orchard, but considering cost factors, a hail detection assembly 5 and a control box 6 are not required to be installed on each fruit tree hail suppression device, only 1 or more hail detection assemblies 5 and control boxes 6 are required to be installed in the orchard or around the orchard, each set of fruit tree hail suppression device provided with the hail detection assembly 5 and the control box 6 can drive the fruit tree hail suppression devices which are not provided with the hail detection assembly 5 and the control box 6 at the periphery through an output unit 65 of the multi-path driving capability,

the cost of the hail detection component 5 and the control box 6 in the fruit tree hail suppression device accounts for about 80% of the total cost, and the use cost of the device can be greatly reduced by adopting the scheme in the embodiment.

Example 8:

the embodiment provides a method for using a fruit tree hail suppression device, which uses the fruit tree hail suppression device, and comprises the following steps:

s1: the orchard worker actively makes a judgment according to the actual weather condition, sends an instruction to the wireless receiving unit 62 through the wireless terminal, and the wireless receiving unit 62 receives the signal and then transmits the signal to the control unit 61;

s2: when hail detecting component 5 detects that hail enters, impeller 501 drives rotation sensor 502 to rotate, and rotation sensor 502 generates an electric signal and sends the electric signal to control unit 61;

s3: the S1 and the S2 work in parallel, the signals sent by the two steps are subjected to OR operation in the control unit 61, and the control unit 61 is triggered to send a hail prevention command by receiving a hail signal in any one of the S1 and the S2;

s4: the control unit 61 controls the output of the output unit 65, the output unit 65 drives the motor 41 to rotate, the motor 41 amplifies the torque through the speed reducer 42 and then drives the rotating shaft 33 and the outermost arc-shaped supports 31 to rotate, and the arc-shaped supports 31 are pulled by the protective cloth 32 to rotate in sequence;

s5: the judging unit 64 detects whether the limit switch 72 acts, when the limit switch 72 acts, the arc support 31 of the innermost layer contacts with the limit switch 72, the protective cover 3 is completely opened, and the next step is executed; when the limit switch 72 is not operated, the operation returns to S4, and the control unit 61 continues to control the output unit 65 to output;

s5: the control unit 61 closes the control output unit 65 to output, the motor 41 stops rotating, and the protection cover 3 is fully opened.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fruit tree hail suppression device comprises a first mounting seat (1), a second mounting seat (2) and a protective cover (3) arranged between the first mounting seat and the second mounting seat, and is characterized by further comprising a driving assembly (4) arranged on the first mounting seat (1) and comprising a motor (41) and a speed reducer (42),

the protective cover (3) comprises arc supports (31), protective cloth (32) which covers the supports (31) and is connected with the supports (31) and rotating shafts (33), the protective cover (3) is provided with a plurality of arc supports (31), the radii of the arc supports (31) are sequentially increased from inside to outside, two ends of all the arc supports (31) are respectively arranged on the two rotating shafts (33), the arc support (31) at the outermost layer is fixedly connected with the rotating shafts (33), other arc supports (31) are rotatably connected with the rotating shafts (33),

the first mounting seat (1) and the second mounting seat (2) are provided with bottom plates (11) and mounting plates (12), each bottom plate (11) is vertically provided with two mounting plates (12) in parallel, the mounting plates (12) are provided with shaft holes (121), two rotating shafts (33) respectively penetrate through the shaft holes (121) to be mounted on the mounting plates (12),

an output shaft of the speed reducer (42) is connected with a rotating shaft arranged on the first mounting seat (1), the rotating shaft (33) and the outermost arc-shaped supports (31) are driven to rotate by means of rotation of the motor (41), and the arc-shaped supports (31) are pulled by the protective cloth (32) to rotate sequentially;

further comprising: a hail detection assembly (5) mounted on the first mounting base (1), a collector (51) is arranged above the hail detection assembly (5), an inlet on the collector (51) is open, and an outlet at the bottom of the collector is connected with the mixing channel (52),

the bottom of the mixing channel (52) is provided with two outlets, namely a rainwater outlet (55) and a via hole (56), the mixing channel (52) is communicated to the outside through the rainwater outlet (55), the mixing channel (52) enters the hail channel (57) through the via hole (56), the outlet at the bottom of the hail channel (57) is a hail outlet (59), and the hail channel (57) is communicated to the outside through the hail outlet (59),

the bottom of the mixing channel (52) is provided with a separator (53), the separator (53) is formed by alternately arranging crossbars (531) and gaps (532), the separator (53) separates rainwater from hail, one side of the separator (53) close to the via hole (56) is lower than one side far away from the via hole (56) and is installed,

the bottom edge of the rainwater outlet (55) is connected with the bottom edge of the through hole (56) through the first inclined surface (54), the bottom edge of the through hole (56) is higher than the bottom edge of the rainwater outlet (55), rainwater is discharged from the rainwater outlet (55) through the first inclined surface (54),

the hail path (57) transitions through a second incline (58) to a hail exit (59), the hail exiting the hail exit (59) from the second incline (58);

the hail detection assembly (5) further comprises: an impeller (501) and a rotation sensor (502),

the impeller (501) is provided with a plurality of blades, hail separated by the separator (53) falls on the blades of the impeller (501) after entering the hail channel (57) to drive the impeller (501) to rotate,

the rotation sensor (502) is installed outside the hail detection assembly (5), the rotating shaft of the rotation sensor is connected with the impeller (501), and the rotation sensor (502) generates an electric signal under the driving of the rotation of the impeller (501).

2. The fruit tree hail suppression device of claim 1, further comprising: a limit component (7) which is arranged on the mounting plate (12) at the inner side of the first mounting seat (1) and comprises a limit device (71) and a limit switch (72),

the position limiter (71) consists of three parts, namely a fixing plate (711), a vertical plate (712) vertically connected with the fixing plate (711), and an inclined plate (713) vertically connected with the vertical plate (712) and forming a fixed angle with the fixing plate (711),

the limit switch (72) is vertically arranged on the inclined plate (713),

when the motor (41) drives the protective cover (3) to be completely opened, the arc-shaped support (31) at the innermost layer is in contact with the limit switch (72), and after the limit switch (72) fails, the inclined plate (713) serves as a mechanical limit to limit the arc-shaped support (31) at the innermost layer to continue rotating.

3. The fruit tree hail suppression device according to claim 1, wherein said first (1) and second (2) mounting bases further comprise a fixing leg (13) disposed under said bottom plate (11), said fixing leg (13) is buried in the soil, and said fixing leg (13) has a three-jaw clamp (131) at the bottom thereof, and is clamped in the soil to fix said bottom plate (11).

4. The fruit tree hail suppression device of claim 1, further comprising: a control box (6) mounted on the first mounting seat (1), the control box including therein:

a control unit (61) that processes the received signal;

a wireless receiving unit (62) which receives wireless signals, processes the signals and sends the processed signals to a control unit (61);

a sensor receiving unit (63) which receives the signal sent by the rotation sensor (502), processes the signal and sends the signal to the control unit (61);

the judging unit (64) receives the signal sent by the limit switch (72), processes the signal and sends the signal to the control unit (61);

and an output unit (65) which receives the instruction of the control unit (61) and drives the motor (41) to rotate.

5. The fruit tree hail suppression device according to claim 4, wherein said output unit (65) has multi-driving capability for driving a plurality of motors (41) to operate simultaneously.

6. A method of using a fruit tree hail suppression device, comprising the fruit tree hail suppression device of any one of claims 1-5, the steps comprising:

s1: the orchard worker actively makes a judgment according to the actual weather condition and sends the judgment through the wireless terminal

Sending an instruction to a wireless receiving unit (62), wherein the wireless receiving unit (62) receives the signal and then transmits the signal to a control unit (61);

s2: when the hail detection component (5) detects that hail enters, the impeller (501) drives the rotary sensor (502) to rotate, and the rotary sensor (502) generates an electric signal and sends the electric signal to the control unit (61);

s3: s1 and S2 work in parallel, signals sent by the two steps are subjected to OR operation in the control unit (61), and any one of the steps (S1) and (S2) triggers the control unit (61) to send a hail prevention command after receiving the hail signal;

s4: the control unit (61) controls the output of the output unit (65), the output unit (65) drives the motor (41) to rotate, the motor (41) amplifies the torque through the speed reducer (42) and then drives the rotating shaft (33) and the outermost arc-shaped support (31) to rotate, and the arc-shaped supports (31) are pulled through the protective cloth (32) to rotate in sequence;

s5: the judgment unit (64) detects whether the limit switch (72) acts, when the limit switch (72) acts, the arc-shaped support (31) of the innermost layer is in contact with the limit switch (72), the protective cover (3) is completely opened, and the next step is executed; when the limit switch (72) is not operated, the operation returns to S4, and the control unit (61) continues to control the output of the output unit (65);

s6: the control unit (61) closes the output of the control output unit (65), the motor (41) stops rotating, and the protective cover (3) is completely opened.