Portable tensioning device and method of use thereof

Abstract

The patent application provides a portable tensioning device for installing a steel strand of a photovoltaic flexible support on two adjacent beams, the tensioning device comprising a frame; a transmission mechanism comprising a first transmission member, a second transmission member and a fixing member, the first transmission member being installed on the frame and being capable of rotating; the second transmission member cooperating with the first transmission member; the fixing member being arranged on the second transmission member; a power amplification mechanism having a power input end and a power output end, the power input end being used for being connected with a driving mechanism, the power output end being connected with the first transmission member, the power amplification mechanism being used for driving the first transmission member to rotate after amplifying the power output by the driving mechanism, and the patent application also provides a use method of the portable tensioning device, so that the whole tensioning device has the advantages of simple structure, less material, convenience in carrying and transportation, great cost advantage and convenience in installation.

Description

Technical Field

[0001] This patent application relates to a portable tensioning device and its usage method, belonging to the field of photovoltaic flexible support. Background Technology

[0002] During the installation of flexible photovoltaic support systems, the steel strands used to support the photovoltaic modules need to be tensioned to fix both ends of the steel strands to the adjacent two rows of beams. Currently, most of the tensioning and installation of steel strands for flexible support systems on the market use hydraulic equipment or winch equipment. The equipment is heavy and difficult to transport. When the tension force is large, the equipment itself also needs to be fixed. Especially in projects with complex terrain, the transportation and fixing of the equipment are very inconvenient. Summary of the Invention

[0003] The purpose of this patent application is to design a lightweight, reliable, portable tensioning device and its method of use that can achieve a large tension force, for assisting in the tensioning and fixing of the steel strands of a photovoltaic flexible support.

[0004] To achieve the above objectives, this patent application adopts the following technical solution: a portable tensioning device for installing the steel strands of a photovoltaic flexible support onto two adjacent beams, the tensioning device comprising...

[0005] A frame for mounting to the beam;

[0006] The transmission mechanism includes a first transmission component, a second transmission component, and a fixing component. The first transmission component is mounted on the frame and is rotatable. The second transmission component cooperates with the first transmission component, and when the first transmission component is rotated, the second transmission component can move along the first transmission component. One end of the fixing component is connected to the second transmission component, and the other end is used to connect the steel strand.

[0007] A power amplification mechanism has a power input end and a power output end. The power input end is used to connect to a drive mechanism, and the power output end is connected to the first transmission member. The power amplification mechanism is used to amplify the power output by the drive mechanism to drive the first transmission member to rotate.

[0008] As a further improvement of this patent application, the frame includes a first frame member and a second frame member. The first frame member is U-shaped and includes a first structural member and two second structural members connecting the two ends of the first structural member. The two ends of the second frame member are respectively connected to the free ends of the two second structural members. A slider is provided on the outer side of each second structural member, and the first transmission member passes through the slider.

[0009] As a further improvement of this patent application, two first transmission members are provided in the first direction, and two power amplification mechanisms are provided in the first direction. The two first transmission members are connected one-to-one with the power output terminals of the two power amplification mechanisms. The two first transmission members are respectively matched with two positions of the second transmission members.

[0010] As a further improvement of this patent application, the power amplification mechanism is a worm gear mechanism, and the two power amplification mechanisms are connected by a synchronous shaft. The two ends of the synchronous shaft are respectively connected to the worms of the two power amplification mechanisms, and the two first transmission components are connected to the worm wheels of the corresponding power amplification mechanisms.

[0011] As a further improvement of this patent application, the tensioning device further includes the driving mechanism, the driving end of which is connected to the power input end of one of the power amplification mechanisms.

[0012] As a further improvement of this patent application, the second transmission component is rectangular, including two parallel first parts and two second parts respectively connected to the same end of the two first parts. The two first transmission components are threadedly engaged with the two first parts in a one-to-one correspondence. Each second part is provided with a positioning part. Each beam is provided with a connecting part on the wall facing the other beam. The positioning part and the connecting part are aligned.

[0013] As a further improvement of this patent application, the tensioning device further includes an adjustment mechanism connecting the second transmission member and the fixing member. The two adjustment mechanisms are arranged on both sides of the steel strand in the second direction, and the fixing member can adjust the position of the steel strand during movement through the adjustment mechanism.

[0014] As a further improvement of this patent application, the adjusting mechanism includes a first rotating member and a second rotating member. The first rotating member is pivoted to the second transmission member, so that the first rotating member can swing in the first direction. The second rotating member is pivoted to the positioning part, so that the second rotating member can swing in the second direction. One end of the fixing member is disposed on the second rotating member, and the first direction is perpendicular to the second direction.

[0015] As a further improvement of this patent application, the adjustment mechanism further includes a clamping block fixed to the steel strand, the clamping block having a fixing hole, and the other end of the fixing member being a hook for engaging with the fixing hole.

[0016] As a further improvement of this patent application, the tensioning device further includes a lifting mechanism, which includes a pulley and a cable winder. The pulley is disposed on the frame. The cable winder includes a frame, a rotatable spool disposed on the frame, and a lifting cable wound on the spool. The lifting cable is connected to the steel strand by passing the free end of the pulley, and the steel strand is lifted by rotating the spool.

[0017] As a further improvement of this patent application, the outer circumference of the reel is provided with a first toothed portion, and the reel also includes a second gear mounted on the frame and meshing with the first toothed portion, and a handle coaxially arranged with the second gear.

[0018] To achieve the above objectives, this patent application also adopts the following technical solution: a method for using the portable tensioning device as described above, used to install the two ends of a steel strand onto two adjacent beams, the two adjacent beams including a first beam and a second beam, characterized in that it includes:

[0019] The first end of the steel cable is raised and fixed to the connection part of the first beam;

[0020] The frame is installed on the second beam;

[0021] Raise the second end of the steel cable and connect it to the fixing member;

[0022] The first transmission component is driven to rotate, which in turn causes the second transmission component and the second end of the steel cable to move toward the second beam. When the second end of the steel cable moves to the connection part of the second beam, the second end of the steel cable is fixed to the connection part of the second beam.

[0023] As a further improvement to this patent application, it also includes,

[0024] During the movement of the second transmission component and the second end of the steel strand toward the second beam, the position of the second end of the steel strand is adjusted by the adjustment mechanism to ensure that the second end of the steel strand is aligned with the connection part of the second beam.

[0025] Compared with existing technologies, this patent application has the following advantages:

[0026] This patent application provides a tensioning device. The tensioning device sets a frame on a beam. After the other end of the steel strand is fixed, the lifting mechanism raises one end of the steel strand to the height of the beam. Then, the fixing member is connected to the steel strand. The driving mechanism drives the transmission mechanism to move the second transmission member toward the connection part of the beam. After the tension of the steel strand is adjusted to a suitable value, it is fixed to another adjacent row of beams, realizing the pre-tensioning and fixing of the steel strands. The entire tensioning device has a simple structure, uses less material, is easy to carry and transport, has a significant cost advantage, and is easy and quick to install without the need for large engineering equipment. It can adapt to various complex terrains. Attached Figure Description

[0027] Figure 1 This is a perspective view of the photovoltaic flexible support structure in this patent application;

[0028] Figure 2 This is a perspective view of the tensioning device in this patent application;

[0029] Figure 3 This is a perspective view of the tensioning device in this patent application from another angle;

[0030] Figure 4 This is a side view of the tensioning device in this patent application;

[0031] Figure 5 This is a schematic diagram of the tensioning process of the tensioning device in this patent application for tensioning steel strands;

[0032] Figure 6 This is a partial top view of the steel cable and adjustment mechanism in this patent application;

[0033] Figure 7 This is a partial perspective view of the power amplification mechanism, frame, and transmission mechanism in this patent application.

[0034] Figure 8 yes Figure 7 An exploded 3D diagram of the structure shown.

[0035] Component Symbol Explanation

[0036] 100-Tensioning device; 200-Photovoltaic flexible support; 300-Steel strand; 301-Steel strand end; 1-Beam; 11-Top wall; 12-Bottom wall; 13-Connecting wall; 14-Connecting ear plate; D1-First direction; D2-Second direction; D3-Third direction; 141-Connecting part; 2-Frame; 3-Transmission mechanism; 4-Power amplification mechanism; 21-First frame component; 22-Second frame component; 211-First structural component; 212-Second structural component; 213-Slider; 31-First transmission component; 32-Second transmission component; 33-Fixing component; 34-Fixing component Position; 321-First part; 322-Second part; 41-Power input end; 42-Power output end; 45-Synchronous shaft; 43-First power amplification mechanism; 44-Second power amplification mechanism; 5-Adjustment mechanism; 51-First rotating component; 52-Second rotating component; 53-Clamping block; 531-Fixing hole; 7-Drive mechanism; 6-Lifting mechanism; 61-Pulley; 62-Rope winder; 63-Pulley seat; 621-Frame; 622-Rope winder; 623-Lifting rope; 6230-Free end; 624-First toothed part; 625-Second gear; 626-Handle. Detailed Implementation

[0037] The exemplary embodiments of this patent application will now be described in detail with reference to the accompanying drawings. Where several embodiments exist, features of these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings denote the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with this patent application; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of this patent application as set forth in the claims.

[0038] The terminology used in this patent application is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this patent application. The singular forms “a,” “the,” or “the” used in the description and claims of this patent application are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0039] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "above," "below," and similar words appearing in this patent application are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are open-ended expressions, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from including other elements. In this patent application, the word "several" means two or more.

[0040] Please see Figures 1-4 As shown, a portable tensioning device 100 is provided, applied to a photovoltaic flexible support 200. The photovoltaic flexible support 200 includes multiple rows of beams 1, multiple columns 10 supporting the multiple rows of beams 1, and steel strands 300 connecting every two adjacent rows of beams 1. The steel strands 300 are used to support photovoltaic modules 400. When installing the steel strands 300, one end of the steel strands 300 is first fixed to the beam 1. The tensioning device 100 is used to tension the steel strands 300 so that the steel strands 300 have a suitable tension force. Then, the other end of the steel strands 300 is fixed to another adjacent row of beams 1 to complete the installation of the steel strands 300.

[0041] Please see Figures 2-4 As shown, in this embodiment, beam 1 is an I-beam, including a top wall 11, a bottom wall 12, a connecting wall 13, and connecting lugs 14. The top wall 11 and the bottom wall 12 are horizontally arranged. The top end of the connecting wall 13 is connected to the middle of the top wall 11, and the bottom end of the connecting wall 13 is connected to the middle of the bottom wall 12. The connecting lugs 14 are vertically arranged on one side of the connecting wall 13, and the plane of the connecting lugs 14 is perpendicular to the plane of the connecting wall 13. The two connecting lugs 14 of two adjacent rows of beams 1 are arranged opposite each other. It should be noted that multiple connecting lugs 14 are arranged along the second direction D2. The first direction D1 is defined as the vertical direction, the second direction D2 as the horizontal direction, and the second direction D2 is parallel to the extension direction of beam 1; the third direction D3 is the horizontal direction, and the third direction D3 is perpendicular to the second direction D2.

[0042] In this embodiment, each connecting ear plate 14 is provided with a plurality of connecting portions 141 along the first direction D1, and the connecting ear plates 14 on the adjacent two rows of beams are also provided with a plurality of connecting portions 141 in the first direction D1, for selectively fixing the steel strand 300. The two ends of each steel strand 300 are respectively fixed to the corresponding connecting portions 141 of the adjacent two rows of beams 1. Preferably, the connecting portion is a connecting hole.

[0043] Please see Figures 2-4 and Figure 7 As shown in the embodiment of this patent application, the tensioning device 100 includes a frame 2, a transmission mechanism 3, and a power amplification mechanism 4. The frame 2 includes a first frame member 21 and a second frame member 22. The first frame member 21 is U-shaped and includes a first structural member 211 and a second structural member 212. The two second structural members 212 are respectively disposed at the two ends connected to the first structural member 211, and the two second structural members 212 extend toward the same side of the first structural member 211. The two ends of the second frame member 22 are respectively connected to the two second structural members 212, so that the frame 2 is rectangular and forms an installation space, in which the beam 1 is disposed. When installing the steel strand 300, the frame 2 needs to be pre-installed on the beam 1. The specific installation method is as follows: the first frame member 21 is clamped onto the top wall 11 and the bottom wall 12 of the beam 1 to place the beam 1 in the installation space, and then the second frame member 22 is fixed to the two free ends of the first frame member 21 with fasteners to position the beam 1, thus completing the installation of the frame 2 on the beam 1. Preferably, there are two second frame members 22, which are spaced apart along the second direction D2. During the installation of the second frame members 22, one second frame member 22 is first fixed to one side of the connecting ear plate 14 in the second direction D2, and then the other second frame member 22 is fixed to the other side of the connecting ear plate 14 in the second direction D2, so that the two second frame members 22 are clamped in the connecting ear plate 14, which facilitates the alignment and fixing of the steel strand 300 later. In addition, the entire frame structure is simple, easy to install, and has high installation efficiency. It can be carried by a single person, does not require large hydraulic equipment, and can adapt to complex terrain conditions.

[0044] Please see Figures 2-4 As shown, the transmission mechanism 3 includes a first transmission member 31, a second transmission member 32, and a fixing member 33. The first transmission member 31 is rotatable about a first axis, and the second transmission member 32 cooperates with the first transmission member 31. When the first transmission member 31 is rotated, the second transmission member 32 can move along the second transmission member toward or away from the first transmission member 31. In this embodiment, the first transmission member 31 is a screw, and the second transmission member 32 is threadedly engaged with the first transmission member 31.

[0045] The fixing member 33 is fixed to the second transmission member 32 and is used to connect the steel strand 300. When the first transmission member 31 is rotated, it drives the second transmission member 32 and the fixing member 33 to move toward or away from the first transmission member 31, thereby driving the steel strand 300 to move toward or away from the first transmission member 31.

[0046] The transmission mechanism 3 is mounted on the frame 2. Specifically, each second structural member 212 has a slider 213 on its outer side away from the beam 1 to be installed in the first direction D1. The first transmission member 31 passes through the slider 213 along the third direction D3 and extends to the outer side of the first structural member 211 of the frame 2. The first transmission member 31 can rotate relative to the slider 213, and the slider 213 provides support for the first transmission member 31, thereby supporting the transmission mechanism 3.

[0047] The second transmission member 32 is provided with multiple positioning parts 34, which are used to position the end 301 of the steel strand 300. The positioning parts 34 are aligned with the connecting parts 141 so that when the steel strand 300 is fixed, the end 301 of the steel strand 300 is aligned with the connecting parts 141. When the second transmission member 32 moves, the end of the steel strand 300 can be stretched to the set position of the connecting parts 141 and then tightened in the next step.

[0048] In one embodiment, two first transmission members 31 are provided in the first direction D1, and the two first transmission members 31 are respectively engaged with two positions of the second transmission member 32. Specifically, the second transmission member 32 is rectangular and includes two parallel first parts 321 and two second parts 322 respectively connected to the same end of the two first parts 321. The two first transmission members 31 are threadedly connected to the two first parts 321 in a one-to-one correspondence. When the two first transmission members 31 rotate, they can drive the second transmission member 32 to move toward or away from the frame 2, ensuring smooth and stable movement.

[0049] Each first part 321 is provided with the above-mentioned positioning part 34. Preferably, the two second parts 322 are provided with the above-mentioned positioning part 34 at the same position.

[0050] In another embodiment, the second transmission member 32 may also be block-shaped or plate-shaped, and the first transmission member 31 is threadedly connected to the second transmission member 32. The second transmission member 32 is provided with a hole, which is the aforementioned positioning part 34.

[0051] Please see Figures 2-4 and Figure 8As shown, the power amplification mechanism 4 is mounted on the frame 2 and has a power input end 41 and a power output end 42. The power input end 41 is used to connect to a drive mechanism 7, and the power output end 42 is connected to the first transmission member 31. The power amplification mechanism 4 is used to amplify the power output by the drive mechanism to drive the first transmission member 31 to rotate. This allows the required power to be achieved using a drive mechanism with a smaller power, and also makes the size of the drive mechanism smaller, reduces costs, and makes it more convenient to use.

[0052] In this embodiment, two power amplification mechanisms 4 are provided in the first direction D1, and two first transmission members 31 are connected to the power output ends 42 of the two power amplification mechanisms 4 in a one-to-one correspondence. The power amplification mechanism 4 is a worm gear mechanism, including a worm wheel and a worm meshing with the worm wheel. The worm wheel is connected to the first transmission member 31 and can rotate synchronously with the first transmission member 31. The power input end 41 is one end of the worm, and the power output end 42 is one end of the worm wheel. The power input end 41 is used to connect to the drive mechanism, the first transmission member 31 is connected to the power output end 42, and the two power amplification mechanisms 4 are connected by a synchronous shaft 45. The two ends of the synchronous shaft 45 are respectively connected to the worms of the two power amplification mechanisms 4, and the two first transmission members 31 are connected to the worm wheels of the corresponding power amplification mechanisms 4. The synchronous shaft 45 can synchronously drive the two power amplification mechanisms 4 with the power output from the drive mechanism, thereby driving the two first transmission members 31 to rotate, so that the second transmission member 32 can move smoothly.

[0053] Specifically, two power amplification mechanisms 4 are respectively disposed on the outside of the first frame member 21 of the frame 2 and connected by a synchronous shaft 45. Further, the two power amplification mechanisms 4 are arranged at intervals along the first direction D1. Each power amplification mechanism 4 includes a first power amplification mechanism 43 and a second power amplification mechanism 44. The first power amplification mechanism 43 includes a first worm and a first worm wheel, and the second power amplification mechanism 44 includes a second worm and a second worm wheel. The two ends of the synchronous shaft 45 are respectively connected to the first worm and the second worm. When the drive mechanism 7 drives the first power amplification mechanism 43, the first worm rotates synchronously with the second worm through the synchronous shaft 45, thereby causing the first worm wheel and the second worm wheel to rotate synchronously. Two ends of the two first transmission members 31 are respectively connected to the first worm wheel and the second worm wheel, thereby driving the two first transmission members 31 to rotate. The two first parts 321 of the second transmission member 32 drive the second transmission member 32 to move.

[0054] By setting the power input end 41 as one end of the worm and the power output end 42 as one end of the worm wheel, and connecting the first transmission component 31 to the worm wheel, when the drive mechanism drives the worm and drives the worm wheel and the first transmission component 31 to rotate, the self-locking characteristic of the worm wheel and worm ensures that the first transmission component 31 will not reverse when the drive mechanism stops, thus preventing the steel strand 300 from driving the second transmission component 32 away from the frame 2 due to its huge gravity, thereby improving installation efficiency and accuracy.

[0055] In this embodiment, the drive mechanism 7 is configured with an external power source, for example, the drive mechanism 7 is a pistol drill.

[0056] In another embodiment, there is one first transmission member 31 and one power amplification mechanism 4, both disposed on one side of the frame 2. The power output end 42 of the power amplification mechanism 4 is connected to the first transmission member 31. The first transmission member 31 is threadedly connected to the second transmission member 32.

[0057] In another embodiment, the tensioning device further includes a drive mechanism 7, which is integrated on the power amplification mechanism 4. The output end of the drive mechanism 7 is directly connected to the power input end 41. In this embodiment, the drive mechanism 7 is a motor.

[0058] Please see Figures 2-4 and Figure 6 As shown, to improve the installation accuracy and efficiency of the steel strand 300 and the connecting part 141, the tensioning device 100 also includes an adjustment mechanism 5 mounted on the second transmission member 32. The adjustment mechanism 5 includes a first rotating member 51 pivotally mounted on the second transmission member 32 and a second rotating member 52 pivotally mounted on the first rotating member 51. The positioning part 34 of the second transmission member 32 is pivotally provided with a first rotatable shaft. The first rotating member 51 is sleeved on the first shaft and can swing in the first direction D1 to adjust vertically in the height direction. The first rotating member 51 is provided with a second rotatable shaft, which is perpendicular to the axis of the first shaft. The second rotating member 52 is sleeved on the second shaft and can swing in the second direction D2 to adjust horizontally in the left and right direction. This allows the position of the steel strand 300 to be adjusted in real time as it moves toward the connecting part 141 of the beam 1, ensuring alignment between the steel strand 300 and the connecting part 141, facilitating subsequent tightening operations.

[0059] Preferably, the adjusting mechanism 5 includes a clamping block 53 fixed on the steel strand 300, the clamping block 53 is provided with a fixing hole 531, and the other end of the fixing member 33 is a hook for engaging with the fixing hole 531, and the tensioning action is achieved by inserting the hook into the fixing hole 531.

[0060] Please see Figures 2-4As shown, the tensioning device 100 also includes a lifting mechanism 6, which includes a pulley 61 and a cable winder 62. The pulley 61 is mounted on the frame 2. Specifically, the second structural member 212 of the frame 2 has a pulley seat 63 on its outer side in the first direction D1, and the pulley 61 is mounted on the pulley seat 63 and can rotate on the pulley seat 63. Preferably, each second structural member 212 has a pulley seat 63 and a pulley 61 rotating on the pulley seat 63 on its outer side in the first direction D1. During installation, it can be directly snapped onto the beam 1 without determining the orientation of the pulley 61 after the frame 2 is installed. If one pulley 61 is damaged by force, another pulley 61 can be selected, thereby improving the service life of the tensioning device 100.

[0061] Please see Figures 2-5 As shown, the cable reel 62 includes a frame 621, a reel 622 rotatably mounted on the frame 621, and a lifting cable 623 wound on the reel 622. By connecting the lifting cable 623 to the steel strand 300 through the free end 6230 of the pulley 61, rotating the reel 622 lifts the steel strand 300 until the end of the steel strand 300 is raised to the height of the beam 1, thus lifting the steel strand 300. Specifically, the outer circumference of the reel 622 is provided with a first toothed portion 624. The cable reel 62 also includes a second gear 625 mounted on the frame 621 and a handle 626 coaxially arranged with the second gear 625. The second gear 625 is located below the first toothed portion 624 and meshes with the first toothed portion 624. When the handle 626 is rotated, it drives the second gear 625 to rotate, thereby driving the first toothed portion 624 and the reel 622 to rotate, thus lifting the end of the steel strand 300.

[0062] In summary, the tensioning device 100 of this patent application, by setting the frame 2 on the beam 1 and after the other end of the steel strand 300 has been fixed, the lifting mechanism 6 lifts one end of the steel strand 300 to the height of the beam 1, and then connects the fixing member 33 to the steel strand 300. The driving mechanism drives the transmission mechanism 3 to move, so that the second transmission member 32 moves toward the connecting part 141 on the beam 1. During the movement, the position of the steel strand 300 is adjusted by the adjustment mechanism until the steel strand 300 moves to engage with the connecting part 141. Fasteners are used to fix the end of the steel strand 300. The entire tensioning device 100 has a simple structure, uses less material, has a significant cost advantage, and is easy and quick to install without the need for large engineering equipment, and can adapt to various complex terrains.

[0063] This patent application also provides a method of using the above-mentioned tensioning device 100, for installing the two ends of the steel strand 300 onto two adjacent beams 1, the two adjacent beams 1 including a first beam and a second beam, and connecting lugs are provided at corresponding positions on the first beam and the second beam, with connecting portions 141 provided on the connecting lugs. The method of use includes:

[0064] The first end of the steel strand 300 is raised and fixed to the connecting part 141 of the first beam. The installer first fixes the first end of the steel strand 300 to the connecting part 141 of the first beam using a lifting device. Specifically, the connecting part 141 is a hole. The steel strand 300 includes a steel wire rope and cable heads at both ends of the wire rope. Fastening holes are provided on the cable heads, and the first end of the steel strand 300 is the end of the cable head. By aligning the fastening holes with the connecting part 141 and connecting them with fasteners, the first end of the steel strand 300 is fixed. Preferably, multiple connecting parts 141 are provided along the first direction D1 on the connecting ear plate for adjusting the fixed position of the steel strand 300.

[0065] The frame 2 is installed on the second beam by snapping the first frame member 21 into the top wall 11 and bottom wall 12 of the beam 1, and then fixing the second frame member 22 to the two free ends of the first frame member 21 with fasteners to position the beam 1, thus completing the installation of the frame 2 on the beam 1.

[0066] The second end of the steel strand 300 is lifted and connected to the fixing member 33. The lifting mechanism 6 is used to lift the second end of the steel strand 300 to the height of the beam 1. The installer then removes the second end of the steel strand 300 from the lifting mechanism 6 and connects it to the fixing member 33. Specifically, the aforementioned clamping block 53 is pre-installed on the steel strand 300, and the hook of the fixing member 33 is connected to the fixing hole 531 of the clamping block 53. Preferably, the clamping block 53 has fixing holes 531 on both sides of the wire rope located in the second direction D2, and the two fixing members 33 are respectively connected to the fixing holes 531 to prevent the steel strand 300 from twisting during subsequent tensioning and movement, thus improving the stability of the installation.

[0067] The first transmission component 31 is driven to rotate, causing the second transmission component 32 and the second end of the steel strand 300 to move towards the second beam. During this movement, the second end of the steel strand 300 is positioned using the adjusting mechanism 5 to ensure alignment between the second end of the steel strand 300 and the connection portion 141 of the second beam. When the second end of the steel strand 300 reaches the connection portion 141 of the second beam, it is fixed to the connection portion 141, thus completing the fixation of the second end of the steel strand 300. The method of fixing the second end of the steel strand 300 to the connection portion 141 of the second beam is the same as the method of fixing the first end of the steel strand 300 to the connection portion 141 of the first beam, and will not be described further here.

[0068] The above embodiments are only used to illustrate this patent application and are not intended to limit the technical solutions described in this patent application. The understanding of this specification should be based on those skilled in the art. For example, the directional descriptions such as "front," "back," "left," "right," "up," and "down" are important. Although this specification has described this patent application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this patent application. All technical solutions and improvements that do not depart from the spirit and scope of this patent application should be covered within the scope of the claims of this patent application.

Claims

1. A portable tensioning device for installing the steel strands (300) of a photovoltaic flexible support (200) onto two adjacent beams (1), characterized in that: The tensioning device (100) includes Frame (2), for mounting to the beam (1); The transmission mechanism (3) includes a first transmission component (31), a second transmission component (32), and a fixing component (33). The first transmission component (31) is mounted on the frame (2) and is rotatable. The second transmission component (32) cooperates with the first transmission component (31). When the first transmission component (31) is rotated, the second transmission component (32) can move along the first transmission component (31). One end of the fixing component (33) is connected to the second transmission component (32), and the other end is used to connect the steel strand (300). The power amplification mechanism (4) has a power input end (41) and a power output end (42). The power input end (41) is used to connect to a drive mechanism, and the power output end (42) is connected to the first transmission member (31). The power amplification mechanism (4) is used to amplify the power output by the drive mechanism and drive the first transmission member (31) to rotate. The tensioning device also includes an adjustment mechanism (5) connecting the second transmission member (32) and the fixing member (33). The second transmission member (32) is provided with multiple positioning parts (34). The positioning parts (34) of the second transmission member (32) are pivotally provided with a first shaft that can rotate on its own. The adjustment mechanism (5) includes a first rotating member (51) and a second rotating member (52). The first rotating member (51) is sleeved on the first shaft and can swing in a first direction. The second rotating member (52) is pivoted on the first rotating member (51). The first rotating member (51) is pivoted on the positioning part (34) so ​​that the second rotating member (52) can swing in a second direction. The first direction is perpendicular to the second direction so that the position of the steel strand (300) can be adjusted in real time when the steel strand (300) moves toward the connection part (141) of the beam (1).

2. The portable tensioning device according to claim 1, characterized in that: The frame (2) includes a first frame member (21) and a second frame member (22). The first frame member (21) is U-shaped and includes a first structural member (211) and two second structural members (212) connecting the two ends of the first structural member (211). The two ends of the second frame member (22) are respectively connected to the free ends of the two second structural members (212). A slider (213) is provided on the outside of each second structural member (212), and the first transmission member (31) passes through the slider (213).

3. The portable tensioning device according to claim 1, characterized in that: Two first transmission components (31) are provided in the first direction, and two power amplification mechanisms (4) are provided in the first direction. The two first transmission components (31) are connected one-to-one with the power output ends (42) of the two power amplification mechanisms (4). The two first transmission components (31) are respectively matched with two positions of the second transmission component (32).

4. The portable tensioning device according to claim 3, characterized in that: The power amplification mechanism (4) is a worm gear mechanism. The two power amplification mechanisms (4) are connected by a synchronous shaft (45). The two ends of the synchronous shaft (45) are respectively connected to the worms of the two power amplification mechanisms (4). The two first transmission components (31) are connected to the worms of the corresponding power amplification mechanisms (4).

5. The portable tensioning device according to claim 4, characterized in that: The tensioning device (100) also includes the driving mechanism (7), the driving end of the driving mechanism (7) being connected to the power input end (41) of one of the power amplification mechanisms (4).

6. The portable tensioning device according to claim 3, characterized in that: The second transmission component (32) is rectangular and includes two parallel first parts (321) and two second parts (322) respectively connected to the same end of the two first parts (321). The two first transmission components (31) are threadedly engaged with the two first parts (321) in a one-to-one correspondence. Each second part (322) is provided with a positioning part (34). Each beam (1) is provided with a connecting part (141) on the wall facing the other beam (1). The positioning part (34) is aligned with the connecting part (141).

7. The portable tensioning device according to claim 1, characterized in that: The adjustment mechanism (5) also includes a clamp (53) fixed on the steel strand, the clamp is provided with a fixing hole (531), and the other end of the fixing member (33) is a hook for connecting with the fixing hole (531).

8. The portable tensioning device according to claim 1, characterized in that: The tensioning device further includes a lifting mechanism (6), which includes a pulley (61) and a cable winder (62). The pulley (61) is disposed on the frame (2). The cable winder (62) includes a frame (621), a spool (622) rotatably disposed on the frame (621), and a lifting cable (623) wound on the spool. The lifting cable (623) is passed around the free end (6230) of the pulley (61) and connected to the steel strand (300). The steel strand (300) is lifted by rotating the spool (622).

9. The portable tensioning device according to claim 8, characterized in that: The outer circumference of the reel (622) is provided with a first tooth (624), and the reel (62) also includes a second gear (625) installed on the frame (621) and meshing with the first tooth (624) and a handle (626) coaxially arranged with the second gear (625).

10. A method of using a portable tensioning device according to any one of claims 1-9, for mounting both ends of a steel strand (300) to two adjacent beams (1), the two adjacent beams comprising a first beam and a second beam, characterized in that, include: Raise the first end of the steel strand (300) and fix it to the connection part (141) of the first beam; Install the frame (2) onto the second beam; Raise the second end of the steel cable (300) and connect it to the fixing member (33); Drive the first transmission component (31) to rotate, causing the second transmission component (32) and the second end of the steel strand to move toward the second beam. When the second end of the steel strand moves to the connection part (141) of the second beam, fix the second end of the steel strand to the connection part (141) of the second beam.

11. The method of using the portable tensioning device according to claim 10, characterized in that, Also includes: During the movement of the second transmission member (32) and the second end of the steel strand toward the second beam, the position of the second end of the steel strand is adjusted by the adjustment mechanism (5) to ensure that the second end of the steel strand is aligned with the connection part (141) of the second beam.

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