Movable combined lifting shading system for solar cell test

Abstract

The invention relates to a movable combined lifting shading system for solar cell testing, which comprises three movable lifting shading devices arranged in a C shape, the movable lifting shading device comprises a moving system, a pneumatic lifting system, a transverse unfolding system arranged at the top end of the pneumatic lifting system and a control system. The pneumatic lifting system, the transverse unfolding system and the control system are arranged on the moving system; the transverse unfolding system comprises a shading curtain and a telescopic rod used for unfolding the shading curtain. According to the movable combined lifting shading system, the shading system is built in a combined mode, building and expansion of an experiment site can be simply achieved, and each movable lifting shading device is short in deployment time and high in automation degree and has an automatic height adjusting function.

Description

Technical Field

[0001] The invention relates to the technical field of optical testing darkrooms, and in particular to a movable combined lifting shading system for solar cell testing. Background Art

[0002] With the development of the photovoltaic industry, the demand for accurate testing and inspection of solar cells is getting higher and higher. In order to ensure the accuracy of the test, the optical testing laboratory has high requirements for the environment, especially the light environment. Whether it is a simulated light source experiment such as simulated sunlight irradiation or a dark environment experiment, it is required to strictly control the environment around the light source during the test to prevent interference from stray light. Stray light includes reflections from the walls, floors, and instruments and equipment in the test environment.

[0003] Generally speaking, optical testing laboratories are built in specific sites. However, as the application fields of optical devices become more and more extensive, the on-site environment becomes increasingly complex, and the cost of simulating the on-site environment in the laboratory increases. People gradually hope to have an optical testing laboratory that can perform optical measurements on optical devices anytime and anywhere to facilitate people's testing operations.

[0004] A Chinese patent with publication number CN206627129U discloses a mobile darkroom for an industrial robot performance detection system, including a darkroom bracket, rollers and a plurality of blackout cloths. Any two adjacent blackout cloths are bonded together to form a light shield. However, the mobile darkroom still has the following problems: the bracket needs to be installed manually, which is not convenient to use, and the top blackout cloth is difficult to install. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a movable combined lifting shading system, which splits the darkroom into multiple movable combined lifting shading devices, which can be moved and easily deployed in required occasions, and has the characteristics of simple structure and high degree of automation.

[0006] To achieve the above-mentioned object, the present invention provides a movable combined lifting shading system for solar cell testing, the movable combined lifting shading system comprising three movable lifting shading devices arranged in a C shape, the movable lifting shading device comprising a moving system, a pneumatic lifting system, a lateral expansion system arranged at the top of the pneumatic lifting system, and a control system;

[0007] The pneumatic lifting system, the lateral deployment system, and the control system are arranged on the mobile system;

[0008] The lateral unfolding system comprises a blackout curtain and a telescopic rod for unfolding the blackout curtain;

[0009] A top shading cloth is arranged on the top of the movable combined lifting shading system.

[0010] According to a technical solution of the present invention, the pneumatic lifting system includes a multi-stage telescopic cylinder, an air compressor, and a power supply.

[0011] According to a technical solution of the present invention, the lateral deployment system further includes a connecting member, and is connected to the pneumatic lifting system through the connecting member;

[0012] The connecting member is a rectangular structure, comprising a first crossbar, a second crossbar located below the first crossbar, and a first connecting column and a second connecting column between the first crossbar and the second crossbar;

[0013] The output end of the pneumatic lifting system is fixedly connected to the first crossbar, and the width of the first crossbar is greater than the width of the second crossbar.

[0014] According to a technical solution of the present invention, two telescopic rods are provided, and one of the telescopic rods is provided with the shading curtain and is provided with a guide member, and the guide member is fixed to the middle part of the second cross bar;

[0015] The non-extended end of one of the telescopic rods is fixed to the left side of the second cross bar through a first fixing member, and the extended end thereof extends from left to right;

[0016] The non-extended end of the other telescopic rod is fixed to the right side of the second cross bar through a second fixing member, and the extended end thereof extends from right to left.

[0017] According to a technical solution of the present invention, the lateral deployment system is also configured with a locking rope for preventing tipping and ensuring rigidity, one end of the locking rope is connected to the extended end of the telescopic rod, and the other end is connected to the first cross bar.

[0018] According to a technical solution of the present invention, the control system includes a control box, and the control box is provided with a manual air control valve and an air pressure gauge.

[0019] According to a technical solution of the present invention, the mobile system is a mobile cart equipped with a ground fixing device;

[0020] The mobile cart is provided with a box body, and the box body is provided with a fixed UPS power supply, a curtain storage box, a fire extinguisher, and a tool box.

[0021] According to a technical solution of the present invention, the top shading cloth is provided with hooks distributed in a triangular shape, the multi-stage telescopic cylinder is provided with a guide tube, one side of the top shading cloth is arranged on the telescopic rod of the movable lifting shading device in the middle of the movable combined lifting shading system for solar cell testing, and the top shading cloth is fixed to the top of the movable lifting shading device on both sides by fixing ropes, the hooks and the guide tubes.

[0022] According to a technical solution of the present invention, the two shading curtains in the same lateral expansion system are connected and fixed at the overlapping portion.

[0023] According to another aspect of the present invention, a method for deploying a movable combined lifting shading system for solar cell testing is provided, comprising the following steps:

[0024] Move the three movable lifting shading devices to a specified position so that the three corresponding shading curtains on the three movable lifting shading devices are in a C shape;

[0025] Lift the multi-stage telescopic cylinder of the pneumatic lifting system out of the mobile cart of the mobile system, extend the telescopic rod laterally and mount the shading curtain on the extended telescopic rod, and mount the top shading cloth on the telescopic rod of the movable lifting shading device in the middle;

[0026] Pass the fixing rope through the hook on the top shading cloth and the guide tubes on the movable lifting shading devices on both sides;

[0027] After all the movable lifting shading devices are fully raised, the fixing rope is pulled to raise the top shading cloth.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The movable combined lifting shading system of the present invention not only achieves the dual breakthrough of being movable and liftable in terms of function, but also adopts the design concept of modularization and combination in structure, making it possible to flexibly expand the experimental site and to make precise adjustments according to different test requirements. In addition, each independent movable lifting shading device can be deployed in a very short time, and the whole process is highly automated, which greatly improves work efficiency and convenience.

[0030] 2. The top of the telescopic rod is connected to the top of the lifting mast by setting a locking rope to prevent the device from tipping over while ensuring that the entire device has sufficient rigidity when fully deployed.

[0031] 3. The special design of the telescopic rod can prevent deformation and falling caused by the excessive weight of multiple blackout curtains mounted on the telescopic rod, and also ensure a good blackout effect.

[0032] 4. The entire movable combined lifting shading system is designed for safety. The curtain and telescopic rod can be stored in the movable cart. After storage, the internal structure is compact, the curtain can be folded and retracted, and the site space is not occupied. The equipment is small in size and can meet the use of special environments such as on-site testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic diagram schematically showing a movable combined lifting shading system in an embodiment of the present invention;

[0035] Figure 2 A schematic diagram schematically showing a movable lifting shading device in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram schematically showing a movable lifting shading device without a shading curtain in an embodiment of the present invention;

[0037] Figure 4 A schematic diagram schematically showing the structure of a lifting system of a movable lifting shading device in an embodiment of the present invention;

[0038] Figure 5 A schematic diagram schematically shows the operating part of the control system of the movable lifting shading device in an embodiment of the present invention.

[0039] Figure 6 The figure schematically shows the unfolded state of the movable lifting shading device in the embodiment of the present invention.

[0040] Figure 7 The figure schematically shows the overlapping part of the telescopic rods of the movable lifting shading device in the embodiment of the present invention.

[0041] Figure 8 The enlarged schematic diagram schematically shows the overlapping part of the telescopic rods of the movable lifting shading device in the embodiment of the present invention.

[0042] Fig. 9 The diagram schematically shows a lifting mast, a locking rope, a telescopic rod, and a connecting piece of a movable lifting shading device in an embodiment of the present invention.

[0043] Fig.10A schematic diagram schematically shows the mounting of the top shading cloth of the movable lifting shading device in an embodiment of the present invention.

[0044] Fig.11 The enlarged schematic diagram schematically shows the connection of the top shading cloth of the movable lifting shading device in the embodiment of the present invention.

[0045] Fig.12 The enlarged schematic diagram schematically shows the connection of the top shading cloth of the movable lifting shading device in the embodiment of the present invention.

[0046] in, Figures 1 to 12 The corresponding relationship between the reference numerals and the component names is as follows:

[0047] 1-box; 2-lifting mast; 3-telescopic rod; 4-locking rope; 5-connecting piece; 6-shading curtain; 7-universal wheel; 8-fixing rope. DETAILED DESCRIPTION

[0048] The description of the embodiments of this specification should be combined with the corresponding drawings, which should be considered as part of the complete specification. In the drawings, the shape or thickness of the embodiments may be enlarged and indicated for simplification or convenience. Furthermore, the parts of each structure in the drawings will be described separately. It is worth noting that the elements not shown in the drawings or not described in words are in a form known to ordinary technicians in the relevant technical field.

[0049] The description of the embodiments herein and any reference to directions and orientations are only for the convenience of description and are not to be construed as any limitation on the scope of protection of the present invention. The following description of the preferred embodiments may involve combinations of features, which may exist independently or in combination, and the present invention is not particularly limited to the preferred embodiments. The scope of the present invention is defined by the claims.

[0050] The movable combined lifting shading system for solar cell testing in this embodiment includes three movable lifting shading devices arranged in a C shape, and the movable lifting shading device includes a moving system, a pneumatic lifting system, a lateral expansion system arranged at the top of the pneumatic lifting system, and a control system;

[0051] The pneumatic lifting system, lateral deployment system, and control system are arranged on the mobile system;

[0052] The lateral unfolding system comprises a blackout curtain 6 and a telescopic rod 3 for unfolding the blackout curtain 6;

[0053] A top shading cloth is arranged on the top of the movable combined lifting shading system.

[0054] The pneumatic lifting system includes a multi-stage telescopic cylinder, an air compressor, and a power supply.

[0055] The movable combined lifting shading system of the present invention is composed of a plurality of movable lifting shading devices, and the movable lifting shading devices integrate core modules such as a pneumatic lifting system, a moving system, an unfolding system, and a control system. The movable combined lifting shading system of the present invention is used for solar cell testing, such as Figure 1 As shown, the movable combined lifting shading system in this embodiment is mainly composed of three identical movable lifting shading devices, which are respectively arranged in front, on the left and on the right of the experimental test system (solar simulator light source system), forming a C-shaped space, and a top shading cloth is set on the top. The curtains of two adjacent retractable and foldable lifting shading devices are connected by Velcro to ensure the shading effect.

[0056] like Figure 2 Figure 3 As shown, each independent movable lifting shading device is composed of a lifting mast 2 (pneumatic lifting system), an unfolding system, a control cabinet (control system), a shading curtain 6, a mobile cart (mobile system), a box 1, etc. The lifting mast 2 is mainly composed of a multi-stage telescopic cylinder and an air compressor in the box 1. The lifting mast 2 drives the shading curtain 6 to move in the vertical direction, from an initial height of 2 meters at the top of the mast, to a smooth rise of 6 meters at the highest point, and the shading curtain 6 itself is 6 meters in height and width matching the mast, ensuring the integrity and effectiveness of the shading system.

[0057] The movable combined lifting shading system of the present invention not only achieves the dual breakthrough of being movable and liftable in terms of function, but also adopts the design concept of modularization and combination in structure, making it possible to flexibly expand the experimental site. In addition, the shading curtain 6 and the telescopic rod 3 can be stored in the movable cart. After storage, the internal structure is compact, and the shading curtain 6 can be folded and retracted, without occupying the site space. The equipment is small in size, and each independent movable lifting shading device can be deployed in a very short time. The whole process is highly automated, which greatly improves work efficiency and convenience. It is particularly worth mentioning that the system also has the function of height adjustment, which can be accurately adjusted according to different test requirements.

[0058] The lateral deployment system also includes a connecting member 5, and is connected to the pneumatic lifting system through the connecting member 5;

[0059] The connecting member 5 is a rectangular structure, including a first crossbar, a second crossbar located below the first crossbar, and a first connecting column and a second connecting column between the first crossbar and the second crossbar;

[0060] The output end of the pneumatic lifting system is fixedly connected to the first crossbar, and the width of the first crossbar is greater than the width of the second crossbar.

[0061] Two telescopic rods 3 are provided, and a shading curtain 6 is provided on each telescopic rod 3, and a guide member is provided, and the guide member is fixed to the middle part of the second cross bar;

[0062] The non-extended end of one of the telescopic rods 3 is fixed to the left side of the second crossbar through a first fixing member, and the extended end thereof extends from left to right;

[0063] The non-extended end of the other telescopic rod 3 is fixed to the right side of the second crossbar through a second fixing member, and the extended end thereof extends from right to left.

[0064] The lateral deployment system is also equipped with a locking rope 4 for preventing tipping and ensuring rigidity. One end of the locking rope 4 is connected to the extended end of the telescopic rod 3, and the other end is connected to the first cross bar.

[0065] Two shading curtains 6 in the same transversely extending system are connected and fixed at the overlapping portion.

[0066] like Figure 4 As shown, the lifting system in this embodiment is composed of a multi-stage telescopic cylinder, a pneumatic valve, an air compressor, and a power supply.

[0067] The lifting mast 2 is responsible for controlling the raising and lowering of the blackout curtain 6. The movement of the lifting mast 2 is controlled by a manually controlled pneumatic valve and has a self-locking function. Once the lifting mast 2 reaches the preset position, it can be locked at a fixed height by air pressure. When the lifting mast 2 is in the half stroke or any other stroke, the pneumatic system can automatically maintain the pressure to ensure a stable height. The lifting mast 2 is equipped with a dedicated air supply system, which is powered by an electrically driven air compressor.

[0068] In this embodiment, the lifting part has a simple structural design and a built-in guide structure, and the cylinder body has sufficient rigidity to support the stability of the overall structure.

[0069] The unfolding system includes a shading curtain 6, a telescopic rod 3, a locking rope 4, etc. In this embodiment, the unfolding system is connected to the lifting system through a connecting member 5. The connecting member 5 is specifically as follows: Fig. 9 As shown, two telescopic rods 3 are arranged on the connecting member 5 , and a shading curtain 6 is mounted on each telescopic rod 3 .

[0070] In view of the large width of the blackout curtain 6 and the long length required for unfolding, the telescopic rod 3 in this embodiment adopts a four-stage telescopic structure. The telescopic rod 3 is made of high-strength carbon fiber material, and can be stretched or retracted step by step by manually rotating the thread, and can be rotated and locked at any position, ensuring the strength and stability of the telescopic rod 3. The design features smooth sliding and stable connection. In order to ensure that the four-stage telescopic rod 3 has sufficient rigidity in the fully unfolded state after being connected to the blackout curtain 6, the top of the telescopic rod 3 is connected to the top mechanism of the lifting mast 2 through a locking rope 4.

[0071] A locking rope 4 is provided on the connecting piece 5 at the top of the telescopic rod 3 and the top of the lifting mast 2 to prevent the device from tipping over and ensure that the entire device has sufficient rigidity in a fully unfolded state.

[0072] like Figure 7 Figure 8 As shown, in order to ensure the shading performance of the entire system, the joints of the telescopic rods 3 are designed to be partially overlapped, which is convenient for the passage of equipment and personnel while maintaining an ideal shading effect.

[0073] The design of partially overlapping the telescopic rod 3 and dividing it into two telescopic rods 3 can prevent deformation and falling caused by excessive weight of the telescopic rod 3 carrying multiple shading curtains 6, and also ensure a good shading effect.

[0074] The top shading cloth is provided with hooks distributed in a triangular shape, and the multi-stage telescopic cylinder is provided with a guide tube. One side of the top shading cloth is arranged on the telescopic rod 3 of the movable lifting shading device in the middle of the movable combined lifting shading system for solar cell testing. The top shading cloth is fixed to the top of the movable lifting shading device on both sides by a fixing rope 8, a hook and a guide tube.

[0075] like Fig.10 , 11 As shown in 12, this embodiment requires top shading, so it is equipped with a top shading cloth. If it is not needed, it can be omitted. When setting the top shading cloth, one side of the top shading cloth is pre-threaded on the telescopic rod 3 of the middle shading system, and the fixed rope 8 is passed through multiple hooks on the top shading cloth and the two top corners on the other side. Then, the top shading cloth is pulled up through the guide tube on the top of the lifting mast of the movable lifting shading device on both sides, and the guide tube openings at the two top corners of the top shading cloth are straightened. After all three movable lifting shading devices are raised, slowly pull up the top shading cloth, and straighten the guide tube openings at the two top corners of the top shading cloth. The top shading cloth is roughly horizontal, with a part drooping in the middle. After it is roughly leveled, the fixed rope 8 is fixed to the lifting mast 2.

[0076] The control system comprises a control box, on which a manual air control valve and an air pressure gauge are arranged.

[0077] like Figure 5 As shown, the control system consists of a control box, a manual air control valve, an air compressor, a pressure gauge, etc. The control box door is equipped with a special cabinet door lock for easy opening and closing. It can be locked with a key when necessary to avoid misoperation. The control box is installed at the left rear of the box body 1. The height is ergonomic and suitable for manual standing operation. At the same time, it is convenient for the operator to observe the lifting height of the lifting mast 2 and control the lifting and stopping of the lifting mast 2 at any time. The pressure gauge displays the pressure of the air compressor in real time to achieve the purpose of safety monitoring.

[0078] The mobile system is a mobile cart equipped with a ground fixing device;

[0079] A box body 1 is provided on the mobile cart, and a fixed UPS power supply, a curtain storage box, a fire extinguisher and a tool box are provided in the box body 1.

[0080] The mobile system in this embodiment uses a mobile cart as a basis, which can realize automatic steering in any direction and can be used for moving and steering at any position when used on site. Anchor bolts are provided under the mobile cart, and the universal wheels 7 at the bottom of the cart have a load-bearing design and a locking device. The single movable combined lifting shading device of each separate surface can be folded and retracted. In the folded state, the shading curtain 6 is folded in the box body 1. When folded, the single movable combined lifting shading device is as shown in FIG. Figure 6 shown.

[0081] The box 1 is fixed on the mobile cart, and the pneumatic lifting system, the lateral expansion system, and the control system are arranged in the box 1. The box 1 is also provided with a storage box for storing the shading curtain 6 and the top shading cloth. The surface of the box 1 is provided with an independent space for placing common tools such as a fire extinguisher and a tool box. The box 1 can be pushed by a person or set up an electric system to move through manual control and the height can be adjusted.

[0082] Embodiment 2

[0083] The method for deploying a movable combined lifting shading system for solar cell testing comprises the following steps:

[0084] Move the three movable lifting shading devices to a specified position so that the three corresponding shading curtains on the three movable lifting shading devices are in a C shape;

[0085] The multi-stage telescopic cylinder is lifted out of the box body 1, the telescopic rod 3 is extended horizontally, and the shading curtain 6 is mounted on the extended telescopic rod 3, and the top shading cloth is mounted on the telescopic rod 3 of the middle movable lifting shading device;

[0086] Pass the fixed rope 8 through the hook on the top shading cloth and the guide tubes on the movable lifting shading devices on both sides;

[0087] After all movable lifting shading devices are fully raised, the fixing rope 8 is pulled to raise the top shading cloth.

[0088] When the movable combined lifting shading system in this embodiment is deployed, first move the three movable lifting shading devices to the specified position, lock the universal wheels 7 under the vehicle, turn on the power, control the manual air-controlled valve to lift the multi-stage telescopic cylinder out of the box 1, manually rotate the thread to extend the telescopic rods 3 on both sides, lock the telescopic rods 3 after extending to the required length, and then mount the shading curtain 6 on the extended telescopic rods 3. After the three movable lifting shading devices have completed the above operations, mount the top shading cloth on the telescopic rod 3 of the middle movable lifting shading device; pass the fixed rope 8 through the hook on the top shading cloth and the guide tubes on the movable lifting shading devices on both sides; after controlling the manual air-controlled valve to fully raise the lifting masts 2 of the three movable lifting shading devices, pull the fixed rope 8 to raise the top shading cloth.

[0089] Parts of the present invention that are not described in detail belong to the well-known technology in the art.

[0090] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A movable combined lifting shading system for solar cell testing, characterized in that: The movable combined lifting shading system includes three movable lifting shading devices arranged in a C shape, and the movable lifting shading device includes a moving system, a pneumatic lifting system, a lateral expansion system arranged at the top of the pneumatic lifting system, and a control system; The pneumatic lifting system, the lateral deployment system, and the control system are arranged on the mobile system; The lateral unfolding system comprises a blackout curtain and a telescopic rod for unfolding the blackout curtain; A top shading cloth is arranged on the top of the movable combined lifting shading system.

2. The movable combined lifting shading system for solar cell testing according to claim 1 is characterized in that: The pneumatic lifting system comprises a multi-stage telescopic cylinder, an air compressor and a power supply.

3. The movable combined lifting shading system for solar cell testing according to claim 1 or 2, characterized in that: The lateral deployment system also includes a connecting member, and is connected to the pneumatic lifting system through the connecting member; The connecting member is a rectangular structure, comprising a first crossbar, a second crossbar located below the first crossbar, and a first connecting column and a second connecting column between the first crossbar and the second crossbar; The output end of the pneumatic lifting system is fixedly connected to the first crossbar, and the width of the first crossbar is greater than the width of the second crossbar.

4. The movable combined lifting shading system for solar cell testing according to claim 3 is characterized in that: There are two telescopic rods, and one of the telescopic rods is provided with a shading curtain and is provided with a guide member, and the guide member is fixed to the middle part of the second cross bar; The non-extended end of one of the telescopic rods is fixed to the left side of the second cross bar through a first fixing member, and the extended end thereof extends from left to right; The non-extended end of the other telescopic rod is fixed to the right side of the second cross bar through a second fixing member, and the extended end thereof extends from right to left.

5. The movable combined lifting shading system for solar cell testing according to claim 3 is characterized in that: The lateral deployment system is also equipped with a locking rope for preventing tipping and ensuring rigidity. One end of the locking rope is connected to the extended end of the telescopic rod, and the other end is connected to the first cross bar.

6. The movable combined lifting shading system for solar cell testing according to claim 1, characterized in that: The control system comprises a control box, on which a manual air control valve and an air pressure gauge are arranged.

7. The movable combined lifting shading system for solar cell testing according to claim 1, characterized in that: The mobile system is a mobile cart equipped with a ground fixing device; The mobile cart is provided with a box body, and the box body is provided with a fixed UPS power supply, a curtain storage box, a fire extinguisher, and a tool box.

8. The movable combined lifting shading system for solar cell testing according to claim 2, characterized in that: The top shading cloth is provided with hooks distributed in a triangular shape, the multi-stage telescopic cylinder is provided with a guide tube, one side of the top shading cloth is arranged on the telescopic rod of the movable lifting shading device in the middle of the movable combined lifting shading system for solar cell testing, and the top shading cloth is fixed to the top of the movable lifting shading device on both sides by fixing ropes, the hooks and the guide tubes.

9. The movable combined lifting shading system for solar cell testing according to claim 4, characterized in that: The two shading curtains in the same transversely unfolding system are connected and fixed at the overlapping portion.

10. A method for deploying a movable combined lifting shading system for solar cell testing according to any one of claims 1 to 9, characterized in that: The following steps are involved: Move the three movable lifting shading devices to a specified position so that the three corresponding shading curtains on the three movable lifting shading devices are in a C shape; Lift the multi-stage telescopic cylinder of the pneumatic lifting system out of the mobile cart of the mobile system, extend the telescopic rod laterally and mount the shading curtain on the extended telescopic rod, and mount the top shading cloth on the telescopic rod of the movable lifting shading device in the middle; Pass the fixing rope through the hook on the top shading cloth and the guide tubes on the movable lifting shading devices on both sides; After all the movable lifting shading devices are fully raised, the fixing rope is pulled to raise the top shading cloth.

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