Protective device for photovoltaic solar panel

By designing a protective device that automatically unfolds and winds, the problem of photovoltaic solar panels being damaged after a long period of rain is solved, and effective protection and working efficiency of solar panels are achieved.

CN222691673UActive Publication Date: 2025-03-28SHANGHAI BOTAO ENG DESIGN CONSULTING CO LTD
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Patent Information

Application Number
CN202420897414.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2025-03-28
Estimated Expiration
2034-04-26

AI Technical Summary

Technical Problem

Photovoltaic solar panels are easily damaged after being exposed to rain for a long time, affecting their service life and work efficiency.

Method used

A protective device including a shell unit, a guide unit, a winding unit, a limiting unit, a control unit and a protective unit is designed. The device can be automatically unfolded in bad weather to block the solar panels and winded up when there is plenty of sunlight to ensure the normal operation of the solar panels.

Benefits of technology

It effectively protects photovoltaic solar panels from damage from bad weather, extends its service life, and ensures the normal working efficiency of solar panels when there is sufficient sunshine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a protection device for a photovoltaic solar panel, which comprises a shell unit, a guide unit, a winding unit, a limiting unit, a first control unit, a second control unit and a protection unit, and is characterized in that the guide unit is arranged at the bottom end of the shell unit and is connected with the shell unit; the winding unit is rotationally arranged in the shell unit; the limiting unit is arranged in the shell unit and connected with the shell unit and the winding unit. The photovoltaic solar panel protection device has the advantages that the second control unit, the winding unit and the protection unit are matched for use, so that the protection unit can be unfolded when encountering severe weather, the photovoltaic solar panel is shielded, and the photovoltaic solar panel is effectively protected; the protection unit is rolled by using the first control unit, so that the practicability of the photovoltaic solar panel in the weather with sufficient sunlight is not influenced; and the guide unit is used for guiding and moving the protection unit, so that the stability of the protection unit during moving is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field related to construction engineering, and in particular to a protective device for photovoltaic solar panels. Background Art

[0002] After the Ministry of Housing and Urban-Rural Development issued the "14th Five-Year Plan for Building Energy Conservation and Green Building Development", combined with the mandatory national standard "General Specification for Building Energy Conservation and Renewable Energy Utilization", under the premise of the goal of "carbon peak and carbon neutrality" and the demand for a better living environment, the importance of building energy conservation is increasing, and the demand for building energy conservation is expected to increase in the long term.

[0003] Photovoltaic solar power generation refers to a power generation method that directly converts light energy into electrical energy without going through a thermal process. It includes photovoltaic power generation, photochemical power generation, photoinduction power generation and photobiological power generation. Photovoltaic power generation is a direct power generation method that uses solar-grade semiconductor electronic devices to effectively absorb solar radiation energy and convert it into electrical energy. It is the mainstream of solar power generation today. In photochemical power generation, there are electrochemical photovoltaic cells, photoelectrolytic cells and photocatalytic cells. Currently, photovoltaic cells are used in practice.

[0004] During the humid and rainy rainy season in the south, solar panels cannot work for a long time and will be exposed to rain for a long time. When solar panels are exposed to rain and wet for a long time, it is easy to damage the solar panel body, so that the efficiency of the solar panel surface receiving light gradually decreases, resulting in reduced working efficiency of the solar panel and affecting the service life of the solar panel.

[0005] At present, there is no effective solution to the problem in the related technology that solar panels are easily damaged by long-term rain and their service life is affected. Utility Model Content

[0006] The purpose of the utility model is to provide a protective device for photovoltaic solar panels in view of the deficiencies in the prior art, so as to solve the problem in the related art that solar panels are easily damaged by long-term rain and their service life is affected.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A protective device for a photovoltaic solar panel, comprising:

[0009] Shell elements;

[0010] A guide unit, the guide unit is arranged at the bottom end of the shell unit and connected to the shell unit;

[0011] A winding unit, the winding unit being rotatably disposed inside the shell unit;

[0012] a limiting unit, the limiting unit being arranged inside the shell unit and connected to the shell unit and the winding unit respectively, and being used to limit the movement of the winding unit;

[0013] A first control unit, the first control unit is connected to the shell unit and the winding unit respectively, and is used to drive the winding unit to rotate;

[0014] a second control unit, the second control unit being arranged inside the shell unit and connected to the shell unit and the winding unit respectively;

[0015] A protection unit, wherein the protection unit is movably arranged inside the shell unit and is respectively connected to the winding unit and the second control unit, and is used for being unfolded to protect the photovoltaic solar panel under the action of the second control unit and being wound up on the winding unit under the action of the first control unit.

[0016] In some of the embodiments, the shell element comprises:

[0017] A first shell element, wherein the guide unit is disposed at the bottom end of the first shell element, and the winding unit, the limiting unit, the first control unit, the second control unit and the protection unit are disposed inside the first shell element;

[0018] a first rotating element, which is disposed at a top end of the first shell element and is rotatably connected to the first manipulation unit, and is used for allowing the first manipulation unit to pass through the first shell element;

[0019] A second rotating element is disposed at the top of the first shell element and is rotatably connected to the second control unit, so as to allow the second control unit to pass through the first shell element.

[0020] In some of the embodiments, the guiding unit comprises:

[0021] at least one first sliding element, which is disposed at the bottom end of the shell unit and is slidably connected to the protection unit;

[0022] A first support plate element is disposed at the bottom end of the first sliding element and connected to the first sliding element.

[0023] In some of the embodiments, the guiding unit further comprises:

[0024] A first through-slot element, wherein the first through-slot element passes through the first support plate element and is used for allowing the second control unit to pass through the first support plate element.

[0025] In some embodiments, the winding unit comprises:

[0026] A winding element, wherein the winding element is rotatably disposed inside the shell unit, and a second end of the winding element is connected to the limiting unit and to the protection unit;

[0027] A first transmission element, the first transmission element is disposed at a first end of the winding element and connected to the winding element;

[0028] A second transmission element, the second transmission element is rotatably connected to the shell unit and the second control unit respectively;

[0029] a third transmission element, the third transmission element being arranged on the second transmission element and being in transmission connection with the first control unit, and being used for driving the second transmission element to rotate under the action of the first control unit;

[0030] A fourth transmission element is arranged at the first end of the second transmission element and is transmission-connected to the first transmission element, and is used for driving the first transmission element to rotate under the action of the second transmission element.

[0031] In some embodiments, the limiting unit includes:

[0032] A first turntable element, the first turntable element is arranged inside the shell unit and connected to the shell unit;

[0033] A first limiting element, wherein the first limiting element is arranged at an end of the first rotating disk element;

[0034] A second turntable element, which is disposed at a second end of the winding unit and connected to the winding unit and is used to rotate under the action of the winding unit;

[0035] A second limiting element, wherein the second limiting element is arranged at an end of the second rotating disk element and abuts against the first limiting element, and is used for limiting the movement of the winding unit.

[0036] In some embodiments, the first control unit includes:

[0037] a first operating element, wherein the first operating element is rotatably disposed on the shell unit, a top end of the first operating element is located outside the shell unit, and a bottom end of the first operating element is located inside the shell unit;

[0038] A fifth transmission element is arranged at the bottom end of the first operating element and is transmission-connected to the winding unit, so as to drive the winding unit to rotate under the action of the first operating element.

[0039] In some embodiments, the second control unit includes:

[0040] a second shell element, the second shell element being arranged inside the shell unit and being connected to the shell unit and the winding unit respectively;

[0041] a winding element, the winding element being rotatably disposed inside the second shell element;

[0042] a rope element, the rope element being wound around the winding element and connected to the protection unit;

[0043] a sixth transmission element, the sixth transmission element being disposed on the winding element and connected to the winding element, and being used for driving the winding element to rotate;

[0044] A second operating element, the second operating element is rotatably connected to the second shell element and the shell unit respectively;

[0045] The seventh transmission element is arranged at the bottom end of the second operating element and is respectively connected to the second operating element and the sixth transmission element, and is used to drive the sixth transmission element to rotate under the action of the second operating element.

[0046] In some embodiments, the second control unit further includes:

[0047] A second through-slot element is disposed at the top of the second shell element and is rotatably connected to the second operating element, so as to allow the second operating element to pass through the second shell element.

[0048] In some embodiments, the second control unit further includes:

[0049] A third through-slot element is disposed at the bottom end of the second shell element and is used for allowing the rope element to pass through the second shell element.

[0050] In some embodiments, the protection unit includes:

[0051] A protective element, the protective element is movably disposed inside the shell unit and is wound around the winding unit, and is used to be wound around the winding unit and unfolded to protect the photovoltaic solar panel under the action of the second control unit;

[0052] A second support plate element, the second support plate element is disposed at the bottom end of the protection element and connected to the protection element;

[0053] At least one second sliding element, wherein the second sliding element is disposed through the second support plate element and is slidably connected to the guide unit.

[0054] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0055] The utility model discloses a protective device for photovoltaic solar panels. By using a second control unit, a winding unit and a protective unit in cooperation, the protective unit can be unfolded in bad weather to shield the photovoltaic solar panel and effectively protect the photovoltaic solar panel. The protective unit is wound up by the first control unit so as not to affect the practicality of the photovoltaic solar panel in sunny weather. The protective unit is guided and moved by the guide unit to improve the stability of the protective unit when moving. The winding unit is limited by the limit unit when it rotates to improve the stability of the winding unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 1 is a schematic diagram of the three-dimensional structure of the protective device according to an embodiment of the utility model;

[0057] Figure 2 2 is a schematic diagram of the three-dimensional structure of the protective device according to an embodiment of the utility model;

[0058] Figure 3 It is a schematic diagram of the internal structure of part of the protective device according to an embodiment of the utility model;

[0059] Figure 4 It is a schematic diagram of the installation of the protective device according to an embodiment of the utility model;

[0060] Figure 5a is a schematic diagram of the three-dimensional structure of a shell unit according to an embodiment of the utility model (I);

[0061] Figure 5b is a schematic diagram of the three-dimensional structure of a shell unit according to an embodiment of the utility model (II);

[0062] Figure 6 is a schematic diagram of the three-dimensional structure of a guide unit according to an embodiment of the utility model;

[0063] Figure 7 It is a schematic diagram of the three-dimensional structure of the winding unit according to an embodiment of the utility model;

[0064] Figure 8 is an exploded view of a limiting unit according to an embodiment of the utility model;

[0065] Fig. 9 is a schematic diagram of the three-dimensional structure of the first control unit according to an embodiment of the utility model;

[0066] Fig.10a is a schematic diagram of the internal structure of the second control unit according to an embodiment of the utility model;

[0067] Fig.10b is a schematic structural diagram of part of a second control unit according to an embodiment of the utility model;

[0068] Fig.11 is a schematic diagram of the three-dimensional structure of a protection unit according to an embodiment of the utility model;

[0069] The reference numerals are: 100, shell unit; 101, first shell element; 102, first rotating element; 103, second rotating element;

[0070] 200, guide unit; 201, first sliding element; 202, first support plate element; 203, first through-slot element;

[0071] 300, winding unit; 301, winding element; 302, first transmission element; 303, second transmission element; 304, third transmission element; 305, fourth transmission element;

[0072] 400, a limiting unit; 401, a first rotating disk element; 402, a first limiting element; 403, a second rotating disk element; 404, a second limiting element;

[0073] 500, first control unit; 501, first control element; 502, fifth transmission element;

[0074] 600, second control unit; 601, second shell element; 602, winding element; 603, rope element; 604, sixth transmission element; 605, second control element; 606, seventh transmission element; 607, second through-slot element; 608, third through-slot element;

[0075] 700, protection unit; 701, protection element; 702, second support plate element; 703, second sliding element. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0077] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0078] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0079] An illustrative embodiment of the present utility model is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a protective device for a photovoltaic solar panel includes a shell unit 100, a guide unit 200, a winding unit 300, a limit unit 400, a first control unit 500, a second control unit 600 and a protective unit 700. Among them, the guide unit 200 is arranged at the bottom end of the shell unit 100 and is connected to the shell unit 100; the winding unit 300 is rotatably arranged inside the shell unit 100; the limiting unit 400 is arranged inside the shell unit 100 and is respectively connected to the shell unit 100 and the winding unit 300, so as to limit the movement of the winding unit 300; the first control unit 500 is respectively connected to the shell unit 100 and the winding unit 300, so as to drive the winding unit 300 to rotate; the second control unit 600 is arranged inside the shell unit 100 and is respectively connected to the shell unit 100 and the winding unit 300; the protection unit 700 is movably arranged inside the shell unit 100 and is respectively connected to the winding unit 300 and the second control unit 600, so as to be unfolded to protect the photovoltaic solar panel under the action of the second control unit 600 and to be wound up in the winding unit 300 under the action of the first control unit 500.

[0080] like Figure 5a , Figure 5b As shown, the shell unit 100 includes a first shell element 101, a first rotating element 102 and a second rotating element 103. Among them, a guide unit 200 is arranged at the bottom end of the first shell element 101, and a winding unit 300, a limiting unit 400, a first control unit 500, a second control unit 600 and a protection unit 700 are arranged inside the first shell element 101; the first rotating element 102 is arranged at the top end of the first shell element 101, and is rotatably connected with the first control unit 500, so as to allow the first control unit 500 to pass through the first shell element 101; the second rotating element 103 is arranged at the top end of the first shell element 101, and is rotatably connected with the second control unit 600, so as to allow the second control unit 600 to pass through the first shell element 101.

[0081] The first shell element 101 is a structure with a closed top and an open bottom.

[0082] In some of the embodiments, the first shell element 101 is made of stainless steel.

[0083] In some of the embodiments, the first shell element 101 is a first shell.

[0084] The cross section of the first rotating element 102 is circular.

[0085] The size of the first rotating element 102 matches the size of the first shell element 101. Generally, the diameter of the first rotating element 102 is smaller than the inner length and inner width of the first shell element 101, and the axial size of the first rotating element 102 is equal to the top wall thickness of the first shell element 101.

[0086] In some embodiments, the first rotating element 102 is a first rotating hole.

[0087] The cross section of the second rotating element 103 is circular.

[0088] The size of the second rotating element 103 matches the size of the first shell element 101. Generally, the diameter of the second rotating element 103 is smaller than the inner length and inner width of the first shell element 101, and the axial size of the second rotating element 103 is equal to the top wall thickness of the first shell element 101.

[0089] The size of the second rotating element 103 matches the size of the first rotating element 102. Generally, the diameter of the second rotating element 103 is equal to the diameter of the first rotating element 102, and the axial size of the second rotating element 103 is equal to the axial size of the first rotating element 102.

[0090] In some embodiments, the second rotating element 103 is a second rotating hole.

[0091] like Figure 6 As shown, the guide unit 200 includes at least one first sliding element 201 and a first support plate element 202. The first sliding element 201 is disposed at the bottom end of the shell unit 100 and is slidably connected to the protection unit 700; the first support plate element 202 is disposed at the bottom end of the first sliding element 201 and is connected to the first sliding element 201.

[0092] Specifically, the first sliding element 201 is disposed at the bottom end of the first shell element 101 and connected to the first shell element 101 .

[0093] The top end of the first sliding element 201 is located inside the first housing element 101 .

[0094] The cross section of the first sliding element 201 is circular, rectangular with rounded corners, elliptical, etc.

[0095] The size of the first sliding element 201 matches the size of the first shell element 101. Generally, the radial size of the first sliding element 201 is smaller than the inner length and inner width of the first shell element 101, and the axial size of the first sliding element 201 is larger than the outer height of the first shell element 101.

[0096] In some embodiments, there are multiple first sliding elements 201 , and the multiple first sliding elements 201 are distributed along the length direction of the first shell element 101 .

[0097] In some of the embodiments, a first sliding element 201 is disposed on one side of the interior of the first shell element 101 , and a first sliding element 201 is disposed on the other side of the interior of the first shell element 101 .

[0098] In some of the embodiments, the first sliding element 201 is fixedly connected to the first shell element 101, including but not limited to welding.

[0099] In some of the embodiments, the first sliding element 201 is made of stainless steel.

[0100] In some embodiments, the first sliding element 201 is a sliding rod.

[0101] The cross section of the first support plate element 202 is rectangular.

[0102] The size of the first support plate element 202 matches the size of the first sliding element 201. Generally, the length and width of the first support plate element 202 are greater than the radial size of the first sliding element 201.

[0103] The size of the first support plate element 202 matches the size of the first shell element 101. Generally, the length of the first support plate element 202 is not greater than the inner length of the first shell element 101, the width of the first support plate element 202 is not greater than the inner width of the first shell element 101, and the height of the first support plate element 202 is less than the inner height of the first shell element 101.

[0104] In some embodiments, the first support plate element 202 is fixedly connected to the first sliding element 201 , including but not limited to welding.

[0105] In some embodiments, the first support plate element 202 is made of stainless steel.

[0106] In some embodiments, the first support plate element 202 is a first support plate.

[0107] Furthermore, the guide unit 200 further includes a first through-slot element 203 . The first through-slot element 203 penetrates through the first support plate element 202 , so as to allow the second control unit 600 to pass through the first support plate element 202 .

[0108] The cross section of the first through-groove element 203 is circular, elliptical, etc.

[0109] The size of the first through-groove element 203 matches the size of the first support plate element 202. Generally, the radial size of the first through-groove element 203 is smaller than the length and width of the first support plate element 202, and the axial size of the first through-groove element 203 is equal to the height of the first support plate element 202.

[0110] In some of the embodiments, the first through-channel element 203 is a first through hole.

[0111] like Figure 7 As shown, the winding unit 300 includes a winding element 301, a first transmission element 302, a second transmission element 303, a third transmission element 304 and a fourth transmission element 305. The winding element 301 is rotatably arranged inside the shell unit 100, and the second end of the winding element 301 is connected to the limit unit 400 and the protection unit 700; the first transmission element 302 is arranged at the first end of the winding element 301 and is connected to the winding element 301; the second transmission element 303 is rotatably connected to the shell unit 100 and the second control unit 600 respectively; the third transmission element 304 is arranged at the second transmission element 303 and is transmission-connected to the first control unit 500, and is used to drive the second transmission element 303 to rotate under the action of the first control unit 500; the fourth transmission element 305 is arranged at the first end of the second transmission element 303 and is transmission-connected to the first transmission element 302, and is used to drive the first transmission element 302 to rotate under the action of the second transmission element 303.

[0112] Specifically, the winding element 301 is rotatably disposed inside the first shell element 101 , and the second transmission element 303 is rotatably connected to the first shell element 101 .

[0113] The cross section of the winding element 301 is circular.

[0114] The size of the winding element 301 matches the size of the first shell element 101. Generally, the diameter of the winding element 301 is smaller than the inner width and inner height of the first shell element 101, and the axial size of the winding element 301 is equal to the inner length of the first shell element 101.

[0115] In some embodiments, the winding element 301 is rotationally connected to the first shell element 101. For example, the winding element 301 is connected to the first shell element 101 via a bearing seat.

[0116] In some of the embodiments, the winding element 301 is made of stainless steel.

[0117] In some of the embodiments, the take-up element 301 is a take-up roller.

[0118] The first transmission element 302 is a hollow structure.

[0119] The size of the first transmission element 302 matches the size of the winding element 301. Generally, the inner diameter of the first transmission element 302 is equal to the diameter of the winding element 301, and the axial size of the first transmission element 302 is smaller than the axial size of the winding element 301.

[0120] The size of the first transmission element 302 matches the size of the first shell element 101. Generally, the outer diameter of the first transmission element 302 is smaller than the inner width and the inner height of the first shell element 101.

[0121] In some of the embodiments, the first transmission element 302 is fixedly connected to the winding element 301 , including but not limited to welding.

[0122] In some embodiments, the first transmission element 302 is made of stainless steel.

[0123] In some embodiments, the first transmission element 302 is a first transmission gear.

[0124] The cross section of the second transmission element 303 is circular.

[0125] The size of the second transmission element 303 matches the size of the first shell element 101. Generally, the diameter of the second transmission element 303 is smaller than the inner width and inner height of the first shell element 101, and the axial size of the second transmission element 303 is smaller than the inner length of the first shell element 101.

[0126] In some embodiments, the second transmission element 303 is rotationally connected to the first shell element 101. For example, the second transmission element 303 is connected to the first shell element 101 via a bearing seat.

[0127] In some embodiments, the second transmission element 303 is made of stainless steel.

[0128] In some of the embodiments, the second transmission element 303 transmits the rotation shaft.

[0129] The third transmission element 304 is a hollow structure.

[0130] The cross section of the outer edge of the third transmission element 304 is a right-angled trapezoid, and the cross section of the inner edge of the third transmission element 304 is a circle. Specifically, the outer edge diameter of the third transmission element 304 decreases from the side away from the fourth transmission element 305 to the side close to the fourth transmission element 305.

[0131] The size of the third transmission element 304 matches the size of the second transmission element 303. Generally, the inner diameter of the third transmission element 304 is equal to the diameter of the second transmission element 303, and the axial size of the third transmission element 304 is smaller than the axial size of the second transmission element 303.

[0132] In some embodiments, the third transmission element 304 is fixedly connected to the second transmission element 303 , including but not limited to welding.

[0133] In some of the embodiments, the third transmission element 304 is made of stainless steel.

[0134] In some of the embodiments, the third transmission element 304 is a first transmission bevel gear.

[0135] The fourth transmission element 305 is a hollow structure.

[0136] The size of the fourth transmission element 305 matches the size of the second transmission element 303. Generally, the inner diameter of the fourth transmission element 305 is equal to the diameter of the second transmission element 303, and the axial dimension of the fourth transmission element 305 is smaller than the axial dimension of the second transmission element 303.

[0137] The size of the fourth transmission element 305 matches the size of the first shell element 101. Generally, the outer diameter of the fourth transmission element 305 is smaller than the inner width and the inner height of the first shell element 101.

[0138] The size of the fourth transmission element 305 matches the size of the first transmission element 302. Generally, the outer diameter of the fourth transmission element 305 is equal to the outer diameter of the first transmission element 302, and the axial dimension of the fourth transmission element 305 is equal to the axial dimension of the first transmission element 302.

[0139] In some embodiments, the fourth transmission element 305 is fixedly connected to the second transmission element 303 , including but not limited to welding.

[0140] In some of the embodiments, the fourth transmission element 305 is made of stainless steel.

[0141] In some of the embodiments, the fourth transmission element 305 is a second transmission gear.

[0142] like Figure 8As shown, the limiting unit 400 includes a first rotating disk element 401, a first limiting element 402, a second rotating disk element 403 and a second limiting element 404. The first rotating disk element 401 is arranged inside the shell unit 100 and connected to the shell unit 100; the first limiting element 402 is arranged at the end of the first rotating disk element 401; the second rotating disk element 403 is arranged at the second end of the winding unit 300 and connected to the winding unit 300, and is used to rotate under the action of the winding unit 300; the second limiting element 404 is arranged at the end of the second rotating disk element 403, and abuts against the first limiting element 402, and is used to limit the movement of the winding unit 300.

[0143] Specifically, the first turntable element 401 is disposed inside the first shell element 101 and connected to the first shell element 101 ; the second turntable element 403 is disposed at the second end of the winding element 301 and connected to the winding element 301 .

[0144] The first turntable element 401 is a hollow structure.

[0145] The size of the first turntable element 401 matches the size of the first shell element 101. Generally, the outer diameter of the first turntable element 401 is smaller than the inner width and inner height of the first shell element 101, and the axial size of the first turntable element 401 is smaller than the inner length of the first shell element 101.

[0146] The size of the first turntable element 401 matches the size of the winding element 301. Generally, the inner diameter of the first turntable element 401 is larger than the diameter of the winding element 301, and the axial dimension of the first turntable element 401 is smaller than the axial dimension of the winding element 301.

[0147] In some of the embodiments, the first turntable element 401 is fixedly connected to the first shell element 101, including but not limited to welding.

[0148] In some of the embodiments, the first turntable element 401 is made of stainless steel.

[0149] In some of the embodiments, the first turntable element 401 is a first turntable.

[0150] The cross section of the first limiting element 402 is in an arc shape.

[0151] The size of the first limiting element 402 matches the size of the first rotating disk element 401. Generally, the radial size of the first limiting element 402 is smaller than the radial size and axial size of the first rotating disk element 401.

[0152] In some of the embodiments, an axial dimension of the first limiting element 402 is equal to a distance from an outer edge of the first rotating disk element 401 to an inner edge of the first rotating disk element 401 .

[0153] In some embodiments, there are multiple first limiting elements 402 , and the multiple first limiting elements 402 are distributed along the circumference of the first rotating disk element 401 .

[0154] In some embodiments, the number of the first limiting elements 402 is eight.

[0155] In some of the embodiments, the first limiting element 402 is a limiting groove or a limiting block.

[0156] The second turntable element 403 is a hollow structure.

[0157] The size of the second turntable element 403 matches the size of the first shell element 101. Generally, the outer diameter of the second turntable element 403 is smaller than the inner width and inner height of the first shell element 101, and the axial dimension of the second turntable element 403 is smaller than the inner length of the first shell element 101.

[0158] The size of the second turntable element 403 matches the size of the winding element 301. Generally, the inner diameter of the second turntable element 403 is equal to the diameter of the winding element 301, and the axial dimension of the second turntable element 403 is smaller than the axial dimension of the winding element 301.

[0159] The size of the second turntable element 403 matches the size of the first turntable element 401. Generally, the outer diameter of the second turntable element 403 is equal to the outer diameter of the first turntable element 401, the inner diameter of the second turntable element 403 is smaller than the inner diameter of the first turntable element 401, and the axial dimension of the second turntable element 403 is equal to the axial dimension of the first turntable element 401.

[0160] In some of the embodiments, the second turntable element 403 is fixedly connected to the winding element 301 , including but not limited to welding.

[0161] In some of the embodiments, the second turntable element 403 is made of stainless steel.

[0162] In some of the embodiments, the second turntable element 403 is a second turntable.

[0163] The cross section of the second limiting element 404 is in an arc shape.

[0164] The size of the second limiting element 404 matches the size of the second rotating disk element 403. Generally, the radial size of the second limiting element 404 is smaller than the radial size and axial size of the second rotating disk element 403.

[0165] In some of the embodiments, an axial dimension of the second limiting element 404 is equal to a distance from an outer edge of the second rotating disk element 403 to an inner edge of the second rotating disk element 403 .

[0166] The number of the second limiting elements 404 matches the number of the first limiting elements 402. Generally, the number of the second limiting elements 404 is equal to the number of the first limiting elements 402.

[0167] In some embodiments, there are multiple second limiting elements 404 , which are distributed along the circumference of the second rotating disk element 403 .

[0168] In some embodiments, the number of the second limiting elements 404 is eight.

[0169] In some of the embodiments, the second limiting element 404 is a limiting block or a limiting groove.

[0170] like Fig. 9 As shown, the first control unit 500 includes a first control element 501 and a fifth transmission element 502. The first control element 501 is rotatably disposed on the shell unit 100, the top end of the first control element 501 is located outside the shell unit 100, and the bottom end of the first control element 501 is located inside the shell unit 100; the fifth transmission element 502 is disposed at the bottom end of the first control element 501, and is transmission-connected with the winding unit 300, and is used to drive the winding unit 300 to rotate under the action of the first control element 501.

[0171] Specifically, the first operating element 501 is rotatably disposed on the first rotating element 102 , the top end of the first operating element 501 is located outside the first shell element 101 , and the bottom end of the first operating element 501 is located inside the first shell element 101 ; the fifth transmission element 502 is connected to the third transmission element 304 .

[0172] The first operating element 501 includes a first rotating shaft and a first twisting disk. The first rotating shaft is rotatably disposed on the first rotating element 102, the top end of the first rotating shaft is located outside the first shell element 101, the bottom end of the first rotating shaft is located inside the first shell element 101, and is connected to the fifth transmission element 502; the first twisting disk is disposed at the top end of the first rotating shaft, and is used to twist the first rotating shaft.

[0173] The size of the first rotating shaft matches the size of the first rotating element 102. Generally, the diameter of the first rotating shaft is equal to the diameter of the first rotating element 102, and the axial size of the first rotating shaft is greater than the axial size of the first rotating element 102.

[0174] The size of the first twisting disk matches the size of the first shell element 101. Generally, the radial size of the first twisting disk is smaller than the outer length and outer width of the first shell element 101.

[0175] The size of the first twisting disk matches the size of the first rotating shaft. Generally, the radial size of the first twisting disk is larger than the diameter of the first rotating shaft, and the axial size of the first twisting disk is smaller than the axial size of the first rotating shaft.

[0176] In some embodiments, the first operating element 501 is rotationally connected to the first shell element 101. For example, the first operating element 501 is connected to the first shell element 101 via a bearing seat.

[0177] In some of the embodiments, the first operating element 501 is made of stainless steel.

[0178] In some embodiments, the first operating element 501 is a first operating rod.

[0179] The longitudinal section of the fifth transmission element 502 is a right-angle trapezoid. Specifically, the diameter of the fifth transmission element 502 decreases from its top end to its bottom end.

[0180] The size of the fifth transmission element 502 matches the size of the first rotating shaft. Generally, the maximum size of the fifth transmission element 502 is larger than the diameter of the first rotating shaft, and the axial size of the fifth transmission element 502 is smaller than the axial size of the first rotating shaft.

[0181] In some embodiments, the fifth transmission element 502 is fixedly connected to the first control element 501 , including but not limited to welding.

[0182] In some of the embodiments, the fifth transmission element 502 is made of stainless steel.

[0183] In some embodiments, the fifth transmission element 502 is a second transmission bevel gear.

[0184] like Fig.10a , Fig.10bAs shown, the second control unit 600 includes a second shell element 601, a winding element 602, a rope element 603, a sixth transmission element 604, a second control element 605 and a seventh transmission element 606. The second shell element 601 is arranged inside the shell unit 100 and is respectively connected to the shell unit 100 and the winding unit 300; the winding element 602 is rotatably arranged inside the second shell element 601; the rope element 603 is wound around the winding element 602 and is connected to the protection unit 700; the sixth transmission element 604 is arranged on the winding element 602 and is connected to the winding element 602, and is used to drive the winding element 602 to rotate; the second control element 605 is respectively rotatably connected to the second shell element 601 and the shell unit 100; the seventh transmission element 606 is arranged at the bottom end of the second control element 605 and is respectively connected to the second control element 605 and the sixth transmission element 604, and is used to drive the sixth transmission element 604 to rotate under the action of the second control element 605.

[0185] Specifically, the second shell element 601 is arranged inside the first shell element 101, and is connected to the first shell element 101 and the second transmission element 303; one end of the rope element 603 passes through the first support plate element 202 from bottom to top through the first through-groove element 203 and is connected to the bottom end of the protection unit 700; the second control element 605 is rotationally connected to the second rotating element 103.

[0186] The second shell element 601 is a hollow structure.

[0187] The size of the second shell element 601 matches the size of the first shell element 101. Generally, the outer length of the second shell element 601 is smaller than the inner length of the first shell element 101, the outer width of the second shell element 601 is smaller than the inner width of the first shell element 101, and the outer height of the second shell element 601 is smaller than the inner height of the first shell element 101.

[0188] The size of the second shell element 601 matches the size of the second transmission element 303. Generally, the outer width and the outer height of the second shell element 601 are greater than the diameter of the second transmission element 303.

[0189] In some of the embodiments, the second shell element 601 is fixedly connected to the first shell element 101, including but not limited to bolt connection.

[0190] In some embodiments, the second shell element 601 is rotationally connected to the second transmission element 303. For example, the second shell element 601 is connected to the second transmission element 303 via a bearing seat.

[0191] In some of the embodiments, the second shell element 601 is made of stainless steel.

[0192] In some of the embodiments, the second shell element 601 is a second shell.

[0193] The winding element 602 has a circular cross-section.

[0194] The size of the winding element 602 matches the size of the second shell element 601. Generally, the diameter of the winding element 602 is smaller than the inner width and inner height of the second shell element 601, and the axial size of the winding element 602 is equal to the inner length of the second shell element 601.

[0195] In some embodiments, the winding element 602 is rotationally connected to the second shell element 601. For example, the winding element 602 is connected to the second shell element 601 via a bearing seat.

[0196] In some of the embodiments, the winding element 602 is made of stainless steel.

[0197] In some of these embodiments, the winding element 602 is a winding shaft.

[0198] The cross section of the rope element 603 is circular.

[0199] The size of the rope element 603 matches the size of the second shell element 601. Generally, the radial size of the rope element 603 is smaller than the inner length and the inner width of the second shell element 601.

[0200] The size of the rope element 603 matches the size of the first through-groove element 203. Generally, the radial size of the rope element 603 is smaller than the radial size of the first through-groove element 203, and the axial size of the rope element 603 is larger than the axial size of the first through-groove element 203.

[0201] In some of the embodiments, the rope element 603 is made of nylon.

[0202] In some of the embodiments, the rope element 603 is a rope.

[0203] The sixth transmission element 604 is a hollow structure.

[0204] The cross section of the outer edge of the sixth transmission element 604 is a right-angled trapezoid, and the cross section of the inner edge of the sixth transmission element 604 is a circle. Specifically, the diameter of the outer edge of the sixth transmission element 604 decreases from one side close to the rope element 603 to the other side.

[0205] The size of the sixth transmission element 604 matches the size of the winding element 602. Generally, the inner diameter of the sixth transmission element 604 is equal to the diameter of the winding element 602, and the axial size of the sixth transmission element 604 is smaller than the axial size of the winding element 602.

[0206] In some embodiments, the sixth transmission element 604 is fixedly connected to the winding element 602 , including but not limited to welding.

[0207] In some of the embodiments, the sixth transmission element 604 is made of stainless steel.

[0208] In some embodiments, the sixth transmission element 604 is a third transmission bevel gear.

[0209] The second operating element 605 includes a second rotating shaft and a second twisting disk, wherein the second rotating shaft is rotatably connected to the second shell element 601 and the second rotating element 103 respectively, and the bottom end of the second rotating shaft is connected to the seventh transmission element 606; the second twisting disk is arranged at the top end of the second rotating shaft for twisting the second rotating shaft.

[0210] The size of the second rotating shaft matches the size of the second shell element 601. Generally, the diameter of the second rotating shaft is smaller than the inner length and inner width of the second shell element 601.

[0211] The size of the second rotating shaft matches the size of the second rotating element 103. Generally, the diameter of the second rotating shaft is equal to the diameter of the second rotating element 103, and the axial size of the second rotating shaft is greater than the axial size of the second rotating element 103.

[0212] The size of the second twisting disk matches the size of the first shell element 101. Generally, the radial size of the second twisting disk is smaller than the outer length and outer width of the first shell element 101.

[0213] The size of the second twisting disk matches the size of the second rotating shaft. Generally, the radial size of the second twisting disk is larger than the diameter of the second rotating shaft, and the axial size of the second twisting disk is smaller than the axial size of the second rotating shaft.

[0214] In some embodiments, the second operating element 605 is rotationally connected to the first shell element 101. For example, the second operating element 605 is connected to the first shell element 101 via a bearing seat.

[0215] In some of the embodiments, the second operating element 605 is made of stainless steel.

[0216] In some embodiments, the second operating element 605 is a second operating rod.

[0217] The longitudinal section of the seventh transmission element 606 is a right-angled trapezoid. Specifically, the diameter of the seventh transmission element 606 decreases from its top end to its bottom end.

[0218] The size of the seventh transmission element 606 matches the size of the second rotating shaft. Generally, the maximum size of the seventh transmission element 606 is larger than the diameter of the second rotating shaft, and the axial size of the seventh transmission element 606 is smaller than the axial size of the second rotating shaft.

[0219] In some of the embodiments, the seventh transmission element 606 is fixedly connected to the second control element 605 , including but not limited to welding.

[0220] In some of the embodiments, the seventh transmission element 606 is made of stainless steel.

[0221] In some embodiments, the seventh transmission element 606 is a fourth transmission bevel gear.

[0222] Furthermore, the second manipulation unit 600 further includes a second through-slot element 607 and / or a third through-slot element 608. The second through-slot element 607 is disposed at the top of the second shell element 601 and is rotatably connected to the second manipulation element 605, so as to allow the second manipulation element 605 to pass through the second shell element 601; the third through-slot element 608 is disposed at the bottom of the second shell element 601, so as to allow the rope element 603 to pass through the second shell element 601.

[0223] Specifically, the second through-slot element 607 is rotationally connected to the second rotating shaft and communicates with the second rotating element 103 .

[0224] The cross section of the second through-channel element 607 is circular.

[0225] The size of the second through-groove element 607 matches the size of the second shell element 601. Generally, the diameter of the second through-groove element 607 is smaller than the inner length and inner width of the second shell element 601, and the axial size of the second through-groove element 607 is equal to the top wall thickness of the second shell element 601.

[0226] The size of the second through-groove element 607 matches the size of the second rotating shaft. Generally, the diameter of the second through-groove element 607 is equal to the diameter of the second rotating shaft, and the axial size of the second through-groove element 607 is smaller than the axial size of the second rotating shaft.

[0227] The size of the second through-groove element 607 matches the size of the second rotating element 103. Generally, the diameter of the second through-groove element 607 is equal to the diameter of the second rotating element 103.

[0228] In some of the embodiments, the second through-channel element 607 is a second through hole.

[0229] The cross section of the third through-channel element 608 is circular.

[0230] The size of the third through-groove element 608 matches the size of the second shell element 601. Generally, the diameter of the third through-groove element 608 is smaller than the inner length and inner width of the second shell element 601, and the axial size of the third through-groove element 608 is equal to the bottom wall thickness of the second shell element 601.

[0231] The size of the third through-groove element 608 matches the size of the rope element 603. Generally, the diameter of the third through-groove element 608 is smaller than the diameter of the rope element 603, and the axial dimension of the third through-groove element 608 is smaller than the axial dimension of the rope element 603.

[0232] In some of the embodiments, the third through-channel element 608 is a third through hole.

[0233] like Fig.11 As shown, the protection unit 700 includes a protection element 701, a second support plate element 702 and at least one second sliding element 703. The protection element 701 is movably arranged inside the shell unit 100 and is wound with the winding unit 300, and is used to be wound on the winding unit 300 and unfolded to protect the photovoltaic solar panel under the action of the second control unit 600; the second support plate element 702 is arranged at the bottom end of the protection element 701 and is connected to the protection element 701; the second sliding element 703 is arranged through the second support plate element 702 and is slidably connected to the guide unit 200.

[0234] Specifically, the protection element 701 is movably disposed inside the first shell element 101 and is wound around the winding element 301 ; the second support plate element 702 is connected to the rope element 603 ; and the second sliding element 703 is slidably connected to the first sliding element 201 .

[0235] In some of the embodiments, the protective element 701 is made of polyester fabric.

[0236] In some of the embodiments, the protection element 701 is a protection curtain.

[0237] The cross section of the second support plate element 702 is rectangular.

[0238] The size of the second support plate element 702 matches the size of the first shell element 101. Generally, the length of the second support plate element 702 is less than the inner length of the first shell element 101, the width of the second support plate element 702 is less than the inner width of the first shell element 101, and the height of the second support plate element 702 is less than the inner height of the first shell element 101.

[0239] The size of the second support plate element 702 matches the size of the first support plate element 202. Generally, the length of the second support plate element 702 is less than the length of the first support plate element 202, the width of the second support plate element 702 is less than the width of the first support plate element 202, and the height of the second support plate element 702 is less than the height of the first support plate element 202.

[0240] The size of the second support plate element 702 matches the size of the rope element 603. Generally, the length and width of the second support plate element 702 are greater than the radial size of the rope element 603.

[0241] In some embodiments, the second support plate element 702 is fixedly connected to the protection element 701, including but not limited to bolt connection.

[0242] In some embodiments, the second support plate element 702 is fixedly connected to the rope element 603, including but not limited to bolt connection.

[0243] In some embodiments, the second support plate element 702 is made of stainless steel.

[0244] In some embodiments, the second support plate element 702 is a second support plate.

[0245] The cross section of the second sliding element 703 is circular, rectangular with rounded corners, elliptical, etc.

[0246] The size of the second sliding element 703 matches the size of the second support plate element 702. Generally, the radial size of the second sliding element 703 is smaller than the length and width of the second support plate element 702, and the axial size of the second sliding element 703 is equal to the height of the second support plate element 702.

[0247] The size of the second sliding element 703 matches the size of the first sliding element 201. Generally, the radial size of the second sliding element 703 is equal to the radial size of the first sliding element 201, and the axial size of the second sliding element 703 is smaller than the axial size of the first sliding element 201.

[0248] The number of the second sliding elements 703 matches the number of the first sliding elements 201. Generally, the number of the second sliding elements 703 is equal to the number of the first sliding elements 201.

[0249] In some embodiments, there are multiple second sliding elements 703 , which are symmetrically disposed at two ends of the second support plate element 702 .

[0250] In some embodiments, a second sliding element 703 is disposed on one side of the second support plate element 702 , and a second sliding element 703 is disposed on the other side of the second support plate element 702 .

[0251] In some of the embodiments, the second sliding element 703 is a sliding hole.

[0252] The method of using the utility model is as follows:

[0253] (I) Installing the first shell element 101

[0254] The first shell element 101 is placed at a designated position and fixed by bolts, with the opening of the first shell element 101 facing downward.

[0255] (II) Photovoltaic solar panel protection

[0256] Twist the second operating element 605 to drive the winding element 602 to rotate accordingly through the seventh transmission element 606 and the sixth transmission element 604;

[0257] The rope element 603 is wound around the winding element 602, and the rope element 603 drives the protection element 701 to move vertically downward along the first sliding element 201 through the second support plate element 702, so that the protection element 701 wound around the winding element 301 is unfolded to protect the photovoltaic solar panel.

[0258] (III) Winding protection element 701

[0259] Twist the first operating element 501 to drive the second transmission element 303 to rotate correspondingly through the fifth transmission element 502 and the third transmission element 304;

[0260] The second transmission element 303 drives the winding element 301 to rotate correspondingly through the fourth transmission element 305 and the first transmission element 302 , and drives the protection element 701 to move vertically upward along the first sliding element 201 through the winding element 301 , thereby winding the winding element 301 .

[0261] The advantages of the utility model are that the protective unit can be unfolded in bad weather by using the second control unit, the winding unit and the protection unit in coordination, thereby shielding the photovoltaic solar panel and effectively protecting the photovoltaic solar panel; the protective unit can be wound up by using the first control unit, thereby not affecting the practicality of the photovoltaic solar panel in sunny weather; the protective unit can be guided and moved by using the guide unit to improve the stability of the protective unit when moving; and the winding unit can be limited by using the limit unit when rotating to improve the stability of the winding unit.

[0262] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective device for photovoltaic solar panels, characterized in that: include: Shell element (100); A guide unit (200), wherein the guide unit (200) is arranged at the bottom end of the shell unit (100) and is connected to the shell unit (100); A winding unit (300), the winding unit (300) being rotatably disposed inside the shell unit (100); a limiting unit (400), the limiting unit (400) being arranged inside the shell unit (100) and being respectively connected to the shell unit (100) and the winding unit (300), and being used to limit the movement of the winding unit (300); A first control unit (500), the first control unit (500) being connected to the shell unit (100) and the winding unit (300) respectively, and being used to drive the winding unit (300) to rotate; A second control unit (600), the second control unit (600) is arranged inside the shell unit (100) and is respectively connected to the shell unit (100) and the winding unit (300); A protection unit (700), wherein the protection unit (700) is movably arranged inside the shell unit (100), and is respectively connected to the winding unit (300) and the second control unit (600), and is used to be unfolded to protect the photovoltaic solar panel under the action of the second control unit (600) and to be rolled up on the winding unit (300) under the action of the first control unit (500).

2. The protective device according to claim 1, characterized in that: The shell element (100) comprises: A first shell element (101), wherein the guide unit (200) is arranged at the bottom end of the first shell element (101), and the winding unit (300), the limiting unit (400), the first control unit (500), the second control unit (600) and the protection unit (700) are arranged inside the first shell element (101); a first rotating element (102), the first rotating element (102) being arranged at the top end of the first shell element (101) and being rotatably connected to the first control unit (500), and being used for allowing the first control unit (500) to pass through the first shell element (101); A second rotating element (103), the second rotating element (103) is arranged at the top end of the first shell element (101), and is rotatably connected to the second control unit (600), so as to allow the second control unit (600) to pass through the first shell element (101).

3. The protective device according to claim 1, characterized in that: The guide unit (200) comprises: at least one first sliding element (201), the first sliding element (201) being arranged at the bottom end of the shell unit (100) and being slidably connected to the protection unit (700); A first support plate element (202), wherein the first support plate element (202) is disposed at the bottom end of the first sliding element (201) and is connected to the first sliding element (201).

4. The protection device according to claim 3, characterized in that: The guide unit (200) further comprises: A first through-slot element (203), wherein the first through-slot element (203) passes through the first support plate element (202) and is used for allowing the second control unit (600) to pass through the first support plate element (202).

5. The protection device according to claim 1, characterized in that: The winding unit (300) comprises: A winding element (301), the winding element (301) being rotatably disposed inside the shell unit (100), the second end of the winding element (301) being connected to the limiting unit (400) and connected to the protection unit (700); A first transmission element (302), the first transmission element (302) being arranged at a first end of the winding element (301) and connected to the winding element (301); A second transmission element (303), the second transmission element (303) being rotationally connected to the shell unit (100) and the second control unit (600) respectively; a third transmission element (304), the third transmission element (304) being arranged on the second transmission element (303) and being in transmission connection with the first control unit (500), and being used for driving the second transmission element (303) to rotate under the action of the first control unit (500); A fourth transmission element (305), wherein the fourth transmission element (305) is arranged at the first end of the second transmission element (303) and is transmission-connected to the first transmission element (302), and is used for driving the first transmission element (302) to rotate under the action of the second transmission element (303).

6. The protection device according to claim 1, characterized in that: The limiting unit (400) comprises: A first turntable element (401), the first turntable element (401) being arranged inside the shell unit (100) and connected to the shell unit (100); A first limiting element (402), wherein the first limiting element (402) is arranged at an end of the first rotating disk element (401); a second turntable element (403), the second turntable element (403) being arranged at a second end of the winding unit (300) and connected to the winding unit (300), and being configured to rotate under the action of the winding unit (300); A second limiting element (404), wherein the second limiting element (404) is arranged at an end of the second turntable element (403) and abuts against the first limiting element (402), and is used to limit the movement of the winding unit (300).

7. The protection device according to claim 1, characterized in that: The first control unit (500) comprises: A first operating element (501), the first operating element (501) being rotatably disposed on the shell unit (100), the top end of the first operating element (501) being located outside the shell unit (100), and the bottom end of the first operating element (501) being located inside the shell unit (100); A fifth transmission element (502), wherein the fifth transmission element (502) is arranged at the bottom end of the first operating element (501) and is transmission-connected to the winding unit (300), and is used for driving the winding unit (300) to rotate under the action of the first operating element (501).

8. The protection device according to claim 1, characterized in that: The second control unit (600) comprises: A second shell element (601), the second shell element (601) is arranged inside the shell unit (100) and is respectively connected to the shell unit (100) and the winding unit (300); a winding element (602), the winding element (602) being rotatably disposed inside the second shell element (601); a rope element (603), wherein the rope element (603) is wound around the winding element (602) and connected to the protection unit (700); a sixth transmission element (604), the sixth transmission element (604) being disposed on the winding element (602) and connected to the winding element (602) and used for driving the winding element (602) to rotate; A second operating element (605), the second operating element (605) being rotatably connected to the second shell element (601) and the shell unit (100) respectively; The seventh transmission element (606) is arranged at the bottom end of the second operating element (605), and is respectively connected to the second operating element (605) and the sixth transmission element (604), and is used to drive the sixth transmission element (604) to rotate under the action of the second operating element (605).

9. The protection device according to claim 8, characterized in that: The second control unit (600) further comprises: A second through-slot element (607), wherein the second through-slot element (607) is disposed at the top end of the second shell element (601) and is rotatably connected to the second operating element (605) so as to allow the second operating element (605) to pass through the second shell element (601); and / or A third through-slot element (608), wherein the third through-slot element (608) is disposed at the bottom end of the second shell element (601), and is used for allowing the rope element (603) to pass through the second shell element (601).

10. The protection device according to claim 1, characterized in that: The protection unit (700) comprises: a protective element (701), the protective element (701) being movably arranged inside the shell unit (100) and being wound around the winding unit (300), and being used for being wound around the winding unit (300) and being unfolded to protect the photovoltaic solar panel under the action of the second control unit (600); A second support plate element (702), the second support plate element (702) is disposed at the bottom end of the protection element (701) and connected to the protection element (701); At least one second sliding element (703), wherein the second sliding element (703) is disposed through the second support plate element (702) and is slidably connected to the guide unit (200).