Photovoltaic flexible bracket and photovoltaic power station

Abstract

The present application relates to the field of photovoltaic bracket design, and provides a photovoltaic flexible bracket, including a fixed bracket, a cable and a pre-tensioning device; wherein the pre-tensioning device includes a pre-tensioning base, a tensioning component and a one-way limiting mechanism, the pre-tensioning base is detachably connected to the fixed bracket, the pre-tensioning base is provided with an extension channel for the cable to match and pass through, and the extension channel has a retraction area in part; the tensioning component is rotatably arranged inside the pre-tensioning base, and the tensioning component is located outside the retraction area; the tensioning component has a force-applying part exposed to the pre-tensioning base, and after the tensioning component is forced to rotate by the force-applying part, the tensioning component can tension the cable so that it partially enters the retraction area; the one-way limiting mechanism is arranged between the pre-tensioning base and the tensioning component, and is used to limit the free rotation of the tensioning component. Based on this, the vibration of the cable can be reduced under the large span application of the cable, and the structural strength and wind resistance of the cable can be improved. In addition, a photovoltaic power station is also provided.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic bracket design, and in particular to a photovoltaic flexible bracket and a photovoltaic power station. Background Art

[0002] Photovoltaic bracket is a special bracket designed for placing, installing and fixing solar panels in solar photovoltaic power generation system. Photovoltaic flexible bracket is a kind of photovoltaic bracket, which has the advantages of simple structure, less material use, light weight and short construction period. Compared with traditional rigid photovoltaic bracket, it has better adaptability and plasticity, and can be adjusted and installed according to actual needs.

[0003] Currently available flexible photovoltaic brackets usually use two load-bearing cables to fix and support solar panels, and the two ends of the load-bearing cables are usually anchored to the ground foundation or bracket beams; however, the load-bearing cables have a problem of low rigidity during use and are only suitable for a small span. If the span is too large, the structural strength of the load-bearing cables will be severely reduced, the wind resistance will be insufficient, and large-scale vibrations will easily occur, which needs to be improved. Summary of the invention

[0004] Based on this, the present application provides a photovoltaic flexible bracket and a photovoltaic power station, which can reduce the vibration of the cable when the cable is used over a large span, and improve the structural strength and wind resistance of the cable.

[0005] In the first aspect, the present application provides a photovoltaic flexible bracket adopting the following technical solution:

[0006] A photovoltaic flexible support, comprising:

[0007] A plurality of fixed brackets are provided at intervals along a first direction;

[0008] Cables, the number of which is at least two, are used to fix and install the solar panels; the cables are sequentially arranged across each fixing bracket, and the two ends of the cables are respectively fixed to two sets of fixing brackets located on both sides;

[0009] Pre-tightening device, there are multiple groups of pre-tightening devices, the pre-tightening device is used to pre-tighten the cable; wherein,

[0010] The pre-tightening device comprises a pre-tightening base, a tensioning component and a one-way limiting mechanism. The pre-tightening base is detachably connected to the fixed bracket. The pre-tightening base is provided with an extension channel for the cable to pass through. The extension channel has a retraction area in part.

[0011] The tensioning component is rotatably arranged inside the pre-tensioning base, and the tensioning component is located outside the retraction area; the tensioning component has a force-applying portion exposed outside the pre-tensioning base, and after the tensioning component is forced to rotate by the force-applying portion, the tensioning component can tension the cable to partially enter the retraction area;

[0012] The one-way limiting mechanism is arranged between the pre-tightening base and the tensioning component, and is used to limit the free rotation of the tensioning component.

[0013] By adopting the above-mentioned technical scheme, when constructing the photovoltaic flexible bracket of the present application, the cable is fixedly connected to the two groups of fixed brackets located on the outside, and then a pre-tensioning device is installed on each group of fixed brackets located in the middle. By fixing the pre-tensioning base of the pre-tensioning device to the fixed bracket, the cable can be located in the extension channel. Secondly, by forcing the tensioning component to rotate unidirectionally through the force-applying part exposed on the pre-tensioning base, the tensioning component can force the cable to partially enter the retraction area, thereby pre-tensioning the cable; at this time, each tensioning device can form a pre-tensioning fulcrum for the cable, which effectively improves the problem of excessive span during the installation of the cable, reduces the vibration of the cable during use, and improves the structural strength and wind resistance of the cable.

[0014] Optionally, a mounting groove for mounting a tensioning component is provided on a side of the pre-tightening base close to the fixed bracket; the one-way limiting mechanism comprises a movable ring, a limiting ring and an elastic component, wherein the limiting ring is fixed to a side of the tensioning component close to an inner end wall of the mounting groove, and a plurality of arc-shaped tooth blocks are provided on a side of the limiting ring away from the tensioning component, and each arc-shaped tooth block is closely arranged on the peripheral side edge of the limiting ring;

[0015] The movable ring is movably installed in the installation groove, and the movable direction of the movable ring is the same as the axis direction of the movable ring; the movable ring is located between the tensioning component and the inner end wall of the installation groove, and the side of the movable ring close to the limiting ring is provided with a limiting tooth groove adapted to the arc-shaped tooth block; the elastic component is arranged between the movable ring and the inner end wall of the installation groove, and is used to force the movable ring to normally abut against the limiting ring, and to make the arc-shaped tooth block normally clamped in the limiting tooth groove;

[0016] The two opposite sides of the arcuate tooth block are respectively provided with an arcuate guide surface and a vertical limit surface. When the tensioning component rotates forward, the arcuate guide surface can enable the arcuate tooth block to push open the movable ring and enter the next limit tooth groove, and the vertical limit surface can limit the reverse rotation of the tensioning component.

[0017] By adopting the above technical solution, the movable ring can be kept pressed against the limiting ring under the elastic force of the elastic component, so that the arc-shaped tooth block of the limiting ring matches and enters the limiting tooth groove of the movable ring, and the rotation position of the tensioning component can be maintained by the abutment limit between the vertical limiting surface and the side wall of the limiting tooth groove; then, by controlling the positive rotation of the tensioning component, the movable ring can be naturally offset in the direction away from the limiting ring by the abutment limit between the arc-shaped guide surface and the side wall of the limiting tooth groove, so that the arc-shaped tooth block enters the next limiting tooth groove, and the tensioning component smoothly forces the cable to partially enter the retraction area. In this way, the one-way rotation of the tensioning component can be achieved, so that the tensioning component can smoothly pre-tighten the cable.

[0018] Optionally, the one-way limiting mechanism further includes a pressing component for locking the movable ring, and a plug-in hole connected to the mounting groove is provided on a side of the pre-tightening base away from the fixed bracket, and the pressing component is movably inserted into the plug-in hole;

[0019] A retaining ring is partially fixed on the outer circumference of the pressing component, and the retaining ring is located inside the installation groove; the elastic component is sleeved on the pressing component, one end of the elastic component is against the retaining ring, and the other end is against the movable ring; in the initial state, the elastic component forces the retaining ring to press against the inner end wall of the installation groove, and at this time, the pressing component and the movable ring are spaced apart;

[0020] A positioning structure is provided between the pre-tightening base and the pressing component. In the use state, the pressing component is positioned by cooperating with the pre-tightening base through the positioning structure, so that the pressing component presses against the movable ring.

[0021] By adopting the above technical solution, by setting the clamping component so that it is inserted into the insertion hole, the first retaining ring of the elastic component against the clamping component can generate elastic force acting on the retaining ring and make the clamping component and the movable ring spaced apart. At this time, the movable ring can smoothly shift in the direction away from the limiting ring to facilitate pre-tightening of the cable. In addition, after the pre-tightening operation of the cable is completed, the clamping component and the pre-tightening base are kept in a coordinated position through the positioning structure, so that the clamping component can be pressed against the movable ring to limit the axial movement of the movable ring. At this time, each arc-shaped tooth block can be stably located inside each limiting tooth groove, so that the pre-tightening force of the tensioning component on the cable is stably maintained, which is conducive to improving the stability of the entire photovoltaic flexible bracket.

[0022] Optionally, the positioning structure includes a positioning groove provided on a side of the pre-tightening base away from the fixing bracket and a positioning plate fixed to an exposed end of the abutting component, and the positioning plate is elliptical in shape;

[0023] The positioning groove includes a through-opening area and a rotating area connected thereto, the through-opening area is connected to the side of the preload base away from the fixed bracket, and the shape of the through-opening area is adapted to the shape of the positioning plate; the inner diameter of the rotating area is not less than the long side length of the positioning plate, and when the positioning plate is located in the rotating area, the clamping component abuts against the movable ring.

[0024] By adopting the above technical solution, in the initial state, the pressing component is acted upon by the elastic force of the elastic component, so that the positioning plate is exposed outside the positioning groove, and at this time, the pressing component and the movable plate are spaced apart; by forcing the pressing component to move toward the positioning groove, the positioning plate can smoothly enter the rotating area through the through-port area, and then the positioning plate is forced to rotate a certain angle, so that the local position of the positioning plate can abut against the transition surface between the through-port area and the rotating area, thereby keeping the pressing component against the movable ring, ensuring that the tensioning component pre-tightens the cable stably. Based on this, the entire operation process can be completed manually by the operator without the aid of auxiliary tools, which is conducive to improving the overall installation efficiency of the photovoltaic flexible bracket.

[0025] Optionally, the solar panel is fixed with at least two sets of connection mechanisms, and each set of connection mechanisms is respectively installed on two cables; wherein,

[0026] The connecting mechanism includes a fixed seat fixed to the solar panel and a sliding seat slidably installed on the solar panel. The adjacent sides of the fixed seat and the sliding seat are respectively provided with enclosed grooves; a locking assembly is provided between the fixed seat and the sliding seat. When the fixed seat and the sliding seat are connected to each other through the locking assembly, the two adjacent enclosed grooves jointly form an enclosed space for enclosing the cable.

[0027] By adopting the above-mentioned technical solution, the solar panel is pre-placed on two adjacent cables, and the cables are correspondingly located between the fixed seat and the sliding seat; then, by forcing the sliding seat to move toward the fixed seat, the two enclosing grooves provided in the fixed seat and the sliding seat can jointly surround the cable, and with the help of the locking assembly, the fixed seat and the sliding seat are kept connected and fixed, so that the solar panel can be firmly installed on the cable.

[0028] Optionally, the locking assembly includes an insertion rod fixed to the side of the sliding seat and a rotating blade rotatably embedded in the outer circumference of the insertion rod, and a torsion spring is provided between the rotating blade and the insertion rod, and the torsion spring is used to force the rotating blade to be partially exposed from the insertion rod under normal conditions;

[0029] The fixed seat is provided with an insertion hole for the plug-in rod to match and insert. When the plug-in rod passes through the insertion hole, the rotating blade is completely retracted into the plug-in rod; when the rotating blade leaves the insertion hole, the torsion spring forces the rotating blade to reset and abut against the side of the fixed seat away from the sliding seat.

[0030] By adopting the above-mentioned technical scheme, under the torsion force of the torsion spring, each rotating blade can be partially exposed from the plug-in rod under normal conditions; by forcing the sliding seat to move in the direction close to the fixed seat and making the plug-in rod match and insert into the plug-in hole, each rotating blade can be against the inner wall of the plug-in hole and completely retracted into the plug-in rod; after the rotating blade leaves the plug-in hole, each rotating blade can be automatically reset under the torsion force of the torsion spring, and finally the side of the rotating blade can be against the side of the fixed seat away from the sliding seat, so that the fixed seat and the sliding seat maintain a firm connection; the whole operation process is convenient and quick, without the aid of auxiliary tools, which is conducive to improving the overall installation efficiency of the photovoltaic flexible bracket.

[0031] Optionally, an unlocking ring is rotatably installed on the side of the fixed seat away from the sliding seat. When the rotating blade is against the side of the fixed seat away from the sliding seat, the unlocking ring is located on the outer peripheral side of each rotating blade. The inner ring of the unlocking ring has multiple guide protrusions. By rotating the unlocking ring and the guide protrusions, the rotating blade can be forced to be completely retracted into the interior of the plug-in member.

[0032] By adopting the above-mentioned technical solution, when the solar panel needs to be maintained or replaced, the unlocking ring is rotated so that the guide protrusions on the inner circle of the unlocking ring respectively abut against the rotating blades on the outer circumference of the plug-in member, thereby forcing each rotating blade to be completely retracted into the plug-in member at one time, so that the operator can force the plug-in member to move away from the plug-in hole, thereby smoothly separating the sliding seat from the fixed seat, so as to facilitate the rapid disassembly of the solar panel.

[0033] Optionally, the pretensioning directions of every two adjacent pretensioning devices are arranged in opposite directions.

[0034] By adopting the above technical solution and making the pre-tightening directions of every two adjacent pre-tightening devices opposite, part of the lateral stress on the cable can be offset, thereby further improving the stability of the cable.

[0035] Optionally, the tensioning member is elliptical in shape, and the minimum distance from the extension channel to the center point of the tensioning member matches the length of the short side of the tensioning member.

[0036] By adopting the above-mentioned technical solution, by setting the tensioning component to an elliptical shape, when the short side of the tensioning component is opposite to the retraction area, the cable can pass through the extension channel normally; by controlling the rotation of the tensioning component, the long side of the tensioning component gradually enters the retraction area, which can force the cable to gradually enter the retraction area, thereby successfully pre-tightening the cable.

[0037] In the second aspect, a photovoltaic power station provided by the present application adopts the following technical solution:

[0038] A photovoltaic power station comprises a solar panel and the above-mentioned photovoltaic flexible bracket, wherein the solar panel is fixedly mounted on the photovoltaic flexible bracket.

[0039] By adopting the above technical solution, after the cable is connected to the two sets of fixed brackets on the outside, the middle part of the cable is pre-tightened by the pre-tightening device to form a pre-tightening fulcrum. Therefore, after the solar panel is installed on the cable, the vibration of the solar panel during use can be reduced, thereby improving the structural strength and wind resistance of the entire photovoltaic power station.

[0040] In summary, the present application includes at least one of the following beneficial technical effects:

[0041] 1. By installing pre-tensioning devices on each group of fixed brackets located in the middle, the tensioning components in the pre-tensioning devices can force the cables to partially enter the retraction area, thereby pre-tensioning the cables; each tensioning device can form a pre-tensioning fulcrum for the cables, effectively improving the problem of excessive span during cable installation, reducing the vibration of the cables during use, and improving the structural strength and wind resistance of the cables;

[0042] 2. Through the cooperation between the arc-shaped tooth block and the limiting tooth groove, the tensioning component can be restricted from rotating in the reverse direction. By controlling the tensioning component to rotate in the forward direction and utilizing the abutment and limiting between the arc-shaped guide surface and the side wall of the limiting tooth groove, the movable ring can be naturally offset in the direction away from the limiting ring, thereby realizing the unidirectional rotation of the tensioning component;

[0043] 3. By setting a locking assembly to quickly connect the fixed seat and the sliding seat, after the plug rod is inserted into the plug hole and the rotating blade completely leaves the plug hole, each rotating blade can automatically reset under the action of torque, and the side of the rotating blade can be against the side of the fixed seat away from the sliding seat, so that the fixed seat and the sliding seat maintain a firm connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a schematic diagram of the overall structure of Example 1;

[0045] Figure 2 is a schematic structural diagram of the pre-tightening device in Example 1;

[0046] Figure 3 It is a partial cross-sectional view of the preload base in Example 1, mainly showing the structure of the one-way limiting mechanism;

[0047] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0048] Figure 5 is a schematic structural diagram of the tensioning component and the limiting ring in Example 1;

[0049] Figure 6 is a schematic diagram of the structure when the solar panel is installed on the cable in Example 1;

[0050] Figure 7is a schematic diagram of the structure of the fixed seat and the sliding seat in Example 1;

[0051] Figure 8 It is a structural schematic diagram of the connecting mechanism in Example 1.

[0052] Description of reference numerals: 1, fixed bracket; 11, first fixed bracket; 2, cable; 3, pre-tightening device; 4, pre-tightening base; 41, extension channel; 42, retraction area; 43, mounting groove; 44, insertion hole; 5, tensioning member; 51, force application part; 52, extension column;

[0053] 6. One-way limiting mechanism; 61. Movable ring; 611. Limiting tooth groove; 612. Guide column; 62. Limiting ring; 621. Arc tooth block; 622. Arc guide surface; 623. Vertical limiting surface; 63. Elastic component; 64. Clamping component; 641. Retaining ring; 7. Positioning structure; 71. Positioning groove; 711. Through-port area; 712. Rotation area; 72. Positioning plate;

[0054] 8. Connecting mechanism; 81. Fixed seat; 811. Plug-in hole; 812. Unlocking ring; 813. Guide protrusion; 82. Sliding seat; 83. Enclosing groove; 84. Locking assembly; 841. Insert rod; 842. Rotating blade; 9. Solar panel; 91. Slide rail. DETAILED DESCRIPTION

[0055] The following is combined with Figure 1-8 This application is described in further detail.

[0056] Example 1

[0057] The embodiment of the present application discloses a photovoltaic flexible bracket.

[0058] Reference Figure 1 A photovoltaic flexible bracket includes a fixed bracket 1, a cable 2 and a pre-tightening device 3; the number of fixed brackets 1 is provided in multiple groups, each fixed bracket 1 is fixed to a base carrier such as the ground or a roof, and all fixed brackets 1 are arranged at intervals along a first direction. Among them, two groups of fixed brackets 1 located at the outer ends of all fixed brackets 1 are respectively set as first fixed brackets 11.

[0059] The number of the cables 2 is at least two. In this embodiment, the number of the cables 2 is set to multiple, and all the cables 2 are arranged at intervals along the second direction; it should be noted that the first direction and the second direction in this embodiment are both located in the horizontal plane, and the first direction is perpendicular to the second direction. The cables 2 are used to install the solar panels 9, and each solar panel 9 is fixedly installed on two cables 2 to ensure the installation stability of the solar panel 9; and the two ends of the cables 2 are respectively fixedly connected to the two sets of first fixing brackets 11.

[0060] There are multiple groups of pre-tightening devices 3, each of which is installed on the fixed bracket 1 to pre-tighten the local position of the cable 2; at this time, each tensioning device can form a pre-tightening fulcrum for the cable 2, effectively improving the problem of excessive span during the installation of the cable 2, reducing the vibration of the cable 2 when it is used, and improving the structural strength and wind resistance of the cable 2. In addition, the pre-tightening directions of each two adjacent groups of pre-tightening devices 3 are set in opposite directions, which can offset part of the lateral stress on the cable 2 and further improve the stability of the cable 2.

[0061] Reference Figure 2 The pre-tightening device 3 includes a pre-tightening base 4, a tensioning component 5 and a one-way limiting mechanism 6, wherein the pre-tightening base 4 is detachably fixed to the fixed bracket 1 by connecting bolts; the side of the pre-tightening base 4 close to the fixed bracket 1 is provided with an extension channel 41, and the middle of the extension channel 41 has a retraction area 42. During the specific installation, after the two ends of the rope are respectively connected to the two pre-tightening bases 4, the cable 2 can be inserted into the extension channel 41, and the pre-tightening base 4 is covered and fixed to the fixed bracket 1.

[0062] The side of the pre-tightening base 4 close to the fixed bracket 1 is provided with an installation groove 43, and the tensioning component 5 is rotatably installed in the installation groove 43, and the tensioning component 5 is located outside the retraction area 42; the tensioning component 5 in this embodiment is set to be elliptical, and the minimum distance from the extension channel 41 to the center point of the tensioning component 5 is equal to the length of the short side of the tensioning component 5. In the initial state, the short side of the tensioning component 5 can fit the cable 2, and by forcing the tensioning component 5 to rotate, the long side of the tensioning component 5 can gradually enter the retraction area 42, thereby tensioning the cable 2. It should be noted that the initial state mentioned here refers to the state when the pre-tightening device 3 has not yet pre-tightened the cable 2.

[0063] Reference Figure 3 An extension column 52 is fixed to the side of the tensioning member 5, and the extension column 52 is penetrated through the preload base 4, and an integrally formed force-applying portion 51 is provided at one end of the extension column 52 away from the tensioning member 5, and the force-applying portion 51 is exposed on the preload base 4; at the same time, refer to Figure 2 The force-applying part 51 forces the extension column 52 and the tensioning member 5 to rotate together, which can drive the long side of the tensioning member 5 to enter the retracting area 42 to pre-tighten the cable 2. In addition, the force-applying part 51 in this embodiment is set in a regular hexagonal shape, and the force-applying part 51 can be easily twisted by using auxiliary tools such as a wrench to drive the tensioning member 5 to rotate, thereby reducing the labor intensity of the operator.

[0064] The one-way limiting mechanism 6 is arranged between the pre-tightening base 4 and the tensioning member 5, and is used to limit the free rotation of the tensioning member 5; Figure 4The one-way limiting mechanism 6 includes a movable ring 61, a limiting ring 62, an elastic component 63 and a pressing component 64. The limiting ring 62 is fixed to the side of the tensioning component 5 close to the inner end wall of the mounting groove 43, and the side of the limiting ring 62 away from the tensioning component 5 is provided with a plurality of arc-shaped tooth blocks 621, and all the arc-shaped tooth blocks 621 are closely arranged along the peripheral edge of the limiting ring 62; in addition, referring to Figure 5 The two opposite side surfaces of the arc-shaped tooth block 621 in the arc direction are respectively provided with an arc-shaped guide surface 622 and a vertical limiting surface 623.

[0065] Back to Figure 3 , Figure 4 The movable ring 61 is movably installed in the installation groove 43. Specifically, a plurality of guide posts 612 are fixed on the side of the movable ring 61 away from the limiting ring 62. The guide posts 612 are movably arranged in the preload base 4, and the axial direction of the guide posts 612 is arranged in the same direction as the axial direction of the movable ring 61, so as to guide the axial movement of the movable ring 61, so that the movable ring 61 can move in the installation groove 43 along its own axial direction. Figure 4 The elastic component 63 is disposed between the movable ring 61 and the inner end wall of the mounting groove 43 , and can force the movable ring 61 to normally abut against the limiting ring 62 .

[0066] The side of the movable ring 61 close to the limiting ring 62 is provided with a plurality of limiting tooth grooves 611, and the number of the limiting tooth grooves 611 is equal to the number of the arc-shaped tooth blocks 621. Under the elastic force of the elastic component 63, each arc-shaped tooth block 621 can be correspondingly clamped inside each limiting tooth groove 611; at the same time, refer to Figure 5 It should be noted that along the rotation direction of the tensioning component 5, the vertical limit surface 623 will be located at the rear end of the arc-shaped guide surface 622, and the vertical limit surface 623 and the inner wall of the limit tooth groove 611 can limit the reverse rotation of the limit ring 62 and the tensioning component 5. When the operator forces the tensioning component 5 to rotate forward through the force-applying part 51, the limit ring 62 can smoothly push open the movable ring 61 through the guidance of the arc-shaped guide surface 622, so that the arc-shaped tooth block 621 can smoothly enter the next limit tooth groove 611 to achieve pre-tightening of the cable 2.

[0067] Back to Figure 4, an insertion hole 44 is provided on the side of the pre-tightening base 4 away from the fixed bracket 1, and the insertion hole 44 is connected to the pre-tightening base 4; the outer diameter of the clamping component 64 is equal to the inner diameter of the insertion hole 44, so that the clamping component 64 can be inserted into the insertion hole 44 and move axially in the insertion hole 44; the clamping component 64 is partially exposed from the pre-tightening base 4, and partially located inside the installation groove 43, and a retaining ring 641 is partially fixed on the outer peripheral surface of the clamping component 64, and the retaining ring 641 is located inside the installation groove 43; it should be noted that the elastic component 63 of this embodiment is configured as a compression spring. After the clamping component 64 is inserted into the insertion hole 44, the clamping component 64 can be inserted into the compression spring and make the retaining ring 641 abut against the end of the compression spring; the other end of the compression spring can abut against the side of the movable ring 61 away from the limiting ring 62.

[0068] In the initial state, the elastic force of the compression spring acting on the retaining ring 641 can force the retaining ring 641 to abut against the inner end wall of the installation groove 43. At this time, the end of the pressing component 64 located in the installation groove 43 can be spaced apart from the movable ring 61. In addition, a positioning structure 7 is also provided between the pressing component 64 and the pre-tightening base 4. In the use state, the pressing component 64 can be positioned in cooperation with the pre-tightening base 4 through the positioning structure 7, so that the pressing component 64 abuts against the movable ring 61, thereby limiting the axial movement of the movable ring 61; at this time, the cooperation and limitation between each arc-shaped tooth block 621 and each limiting tooth groove 611 can stably maintain the pre-tightening force of the tensioning component 5 on the cable 2, thereby improving the stability of the entire photovoltaic flexible bracket.

[0069] It should be noted that the use state mentioned here refers to the state when the partial pre-tightening of the cable 2 is completed and the solar panel 9 can be smoothly installed on the cable 2. Specifically, the positioning structure 7 includes a positioning groove 71 and a positioning plate 72, and the positioning groove 71 is opened on the side of the pre-tightening base 4 away from the fixed bracket 1; wherein the positioning plate 72 is fixedly connected to the exposed end of the abutting component 64, and the specific shape of the positioning plate 72 is set to be an elliptical shape.

[0070] The positioning groove 71 is opened on the side of the preload base 4 away from the fixed bracket 1, and the positioning groove 71 is connected with the insertion hole 44; wherein, the positioning groove 71 includes a through-opening area 711 and a rotating area 712 connected thereto, the through-opening area 711 is connected to the side of the preload base 4 away from the fixed bracket 1, and the shape of the through-opening area 711 is the same as the shape of the positioning plate 72 and the size is adapted, so that the positioning plate 72 can smoothly enter the positioning groove 71 through the through-opening area 711. The rotating area 712 is located on the side of the through-port area 711 close to the fixed bracket 1, and the inner diameter of the rotating area 712 is not less than the long side length of the positioning plate 72. After the positioning plate 72 enters the rotating area 712, rotating the positioning plate 72 can make the positioning plate 72 clamped on the transition surface between the rotating area 712 and the through-port area 711, so that the position of the positioning plate 72 can be maintained; at this time, one end of the locking component 64 located in the mounting groove 43 can abut against the movable ring 61, thereby limiting the axial movement of the movable ring 61.

[0071] Reference Figure 6 Each solar panel 9 is fixed with at least two groups of connecting mechanisms 8. In the present embodiment, the specific number of connecting mechanisms 8 on one solar panel 9 is four groups. The four groups of connecting mechanisms 8 are respectively arranged at the four corners of the solar panel 9, and each group of connecting mechanisms 8 is divided into two units, which are respectively installed on two cables 2.

[0072] Reference Figure 7 The connecting mechanism 8 includes a fixed seat 81 and a sliding seat 82. The fixed seat 81 is fixed to the side of the solar panel 9, and the sliding seat 82 is slidably installed on the side of the solar panel 9 through a slide rail 91; the fixed seat 81 and the sliding seat 82 are located on the same side of the solar panel 9, and the sliding direction of the sliding seat 82 is opposite to the fixed seat 81.

[0073] The side of the fixed seat 81 close to the sliding seat 82 and the side of the sliding seat 82 close to the fixed seat 81 are both provided with an enclosed groove 83, and the enclosed groove 83 is a semicircular groove. When the sliding seat 82 slides to fit against the fixed seat 81, the two semicircular grooves can together enclose to form an enclosed space, thereby surrounding the fixed cable 2; and a locking assembly 84 is also provided between the fixed seat 81 and the sliding seat 82. When the sliding seat 82 fits against the fixed seat 81, the two can be fixedly connected through the locking assembly 84, so that the solar panel 9 can be quickly installed on the cable 2.

[0074] The locking assembly 84 includes a plug-in rod 841 and a plurality of rotating blades 842. The plug-in rod 841 is fixed to the side of the sliding seat 82 close to the fixed seat 81. The plug-in rod 841 is a hollow rod. The outer peripheral surface of the plug-in rod 841 is provided with a plurality of radially penetrating embedded grooves. The number of rotating blades 842 is equal to the number of embedded grooves. Each rotating blade 842 is rotatably installed in each embedded groove. In addition, a torsion spring (not shown in the figure) is provided at the rotation connection between the rotating blade 842 and the embedded groove. The torsion spring can always generate a torsion force acting on the rotating blade 842, so that the rotating blade 842 is partially exposed on the outer peripheral side of the plug-in rod 841 under normal conditions.

[0075] The fixed seat 81 is provided with a through plug hole 811, and the inner diameter of the plug hole 811 is set to be equal to the outer diameter of the plug rod 841, so that the plug rod 841 can match and pass through the plug hole 811; and, when the plug rod 841 enters the plug hole 811, the rotating blade 842 can abut against the inner wall of the plug hole 811, so that each rotating blade 842 is completely retracted into the plug rod 841; after the rotating blade 842 successfully leaves the plug hole 811, each rotating blade 842 can automatically reset and re-expose the plug rod 841 under the torsion force of the torsion spring, at this time, the side of the rotating blade 842 can abut against the side of the fixed seat 81 away from the sliding seat 82, it is difficult for the fixed seat 81 and the sliding seat 82 to directly detach, so that the two can maintain a firm connection.

[0076] The side of the fixed seat 81 away from the sliding seat 82 is rotatably mounted with an unlocking ring 812, which is located at the outer peripheral side of the plug hole 811. When the rotating blade 842 passes through the plug hole 811 and abuts against the side of the fixed seat 81 away from the sliding seat 82, the unlocking ring 812 can be located at the outer peripheral side of each rotating blade 842. The inner ring of the unlocking ring 812 is provided with a plurality of guide protrusions 813, each of which is integrally formed with the unlocking ring 812, and one end of the guide protrusion 813 away from the unlocking ring 812 is directly opposite to the outer edge of the plug hole 811; after the rotating blade 842 passes through the plug hole 811, each rotating blade 842 can be located between adjacent guide protrusions 813, and by rotating the unlocking ring 812, each extended protrusion can force each rotating blade 842 to retract into the plug rod 841 at one time, so as to facilitate the rapid separation between the sliding seat 82 and the fixed seat 81, and facilitate the subsequent maintenance and replacement of the solar panel 9 by the operator.

[0077] Example 2

[0078] The embodiment of the present application also discloses a photovoltaic power station.

[0079] A photovoltaic power station includes a solar panel 9 and the photovoltaic flexible bracket in Example 1. After a fixed seat 81 is fixed to the solar panel 9 and a sliding seat 82 is slidably installed on the solar panel 9, the solar panel 9 is pre-placed on the cable 2 to force the sliding seat 82 to move against the fixed seat 81. After the fixed seat 81 and the sliding seat 82 jointly surround the fixed cable 2, the fixed seat 81 and the sliding seat 82 are fixed by a locking assembly 84, so that the solar panel 9 can be firmly installed on the cable 2.

[0080] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic flexible bracket, characterized in that: include: A fixing bracket (1), wherein the fixing bracket (1) is multiple in number and arranged at intervals along a first direction; A cable (2), the number of the cables (2) being at least two, and being used for fixing and installing a solar panel (9); the cables (2) are sequentially arranged across each fixing bracket (1), and the two ends of the cables (2) are respectively fixed to two groups of fixing brackets (1) located on both sides; A pre-tightening device (3), wherein the pre-tightening device (3) is provided with a plurality of groups, and the pre-tightening device (3) is used to pre-tighten the cable (2); wherein: The pre-tightening device (3) comprises a pre-tightening base (4), a tensioning component (5) and a one-way limiting mechanism (6); the pre-tightening base (4) is detachably connected to the fixed bracket (1); the pre-tightening base (4) is provided with an extension channel (41) for the cable (2) to pass through; the extension channel (41) partially has a retracted area (42); The tensioning component (5) is rotatably arranged inside the pre-tensioning base (4), and the tensioning component (5) is located outside the retraction area (42); the tensioning component (5) has a force-applying portion (51) exposed outside the pre-tensioning base (4), and after the tensioning component (5) is forced to rotate by the force-applying portion (51), the tensioning component (5) can tension the cable (2) so that it partially enters the retraction area (42); The one-way limiting mechanism (6) is arranged between the pre-tightening base (4) and the tensioning component (5) and is used to limit the free rotation of the tensioning component (5); The side of the pre-tightening base (4) close to the fixed bracket (1) is provided with a mounting groove (43) for mounting the tensioning component (5); the one-way limiting mechanism (6) comprises a movable ring (61), a limiting ring (62) and an elastic component (63), wherein the limiting ring (62) is fixed to the side of the tensioning component (5) close to the inner end wall of the mounting groove (43), and the side of the limiting ring (62) away from the tensioning component (5) is provided with a plurality of arc-shaped tooth blocks (621), and each of the arc-shaped tooth blocks (621) is closely arranged on the peripheral edge of the limiting ring (62); The movable ring (61) is movably mounted in the mounting groove (43), and the movable direction of the movable ring (61) is the same as the axial direction of the movable ring (61); the movable ring (61) is located between the tensioning component (5) and the inner end wall of the mounting groove (43), and a limiting tooth groove (611) adapted to the arc-shaped tooth block (621) is provided on the side of the movable ring (61) close to the limiting ring (62); the elastic component (63) is provided between the movable ring (61) and the inner end wall of the mounting groove (43), and is used to force the movable ring (61) to normally abut against the limiting ring (62), and to make the arc-shaped tooth block (621) normally clamped in the limiting tooth groove (611); Two opposite side surfaces of the arc-shaped tooth block (621) are respectively provided with an arc-shaped guide surface (622) and a vertical limit surface (623); when the tensioning component (5) rotates in the forward direction, the arc-shaped guide surface (622) enables the arc-shaped tooth block (621) to push open the movable ring (61) and enter the next limit tooth groove (611); and the vertical limit surface (623) can limit the reverse rotation of the tensioning component (5).

2. The photovoltaic flexible bracket according to claim 1, characterized in that: The one-way limiting mechanism (6) further comprises a pressing component (64) for locking the movable ring (61); a side of the pre-tightening base (4) away from the fixing bracket (1) is provided with an insertion hole (44) connected to the mounting groove (43); and the pressing component (64) is movably inserted into the insertion hole (44); A retaining ring (641) is partially fixed to the outer peripheral surface of the abutting component (64), and the retaining ring (641) is located inside the mounting groove (43); the elastic component (63) is sleeved on the abutting component (64), and one end of the elastic component (63) abuts against the retaining ring (641), and the other end abuts against the movable ring (61); in an initial state, the elastic component (63) forces the retaining ring (641) to abut against the inner end wall of the mounting groove (43), and at this time, the abutting component (64) and the movable ring (61) are spaced apart; A positioning structure (7) is provided between the pre-tightening base (4) and the abutting component (64); in a use state, the abutting component (64) is positioned in cooperation with the pre-tightening base (4) through the positioning structure (7), so that the abutting component (64) abuts against the movable ring (61).

3. The photovoltaic flexible bracket according to claim 2, characterized in that: The positioning structure (7) comprises a positioning groove (71) formed on a side of the pre-tightening base (4) away from the fixing bracket (1) and a positioning plate (72) fixed to an exposed end of the abutting component (64); the positioning plate (72) is elliptical in shape; The positioning groove (71) comprises a through-opening area (711) and a rotating area (712) connected thereto; the through-opening area (711) is connected to a side of the preload base (4) away from the fixed bracket (1), and the shape of the through-opening area (711) is adapted to the shape of the positioning plate (72); the inner diameter of the rotating area (712) is not less than the length of the long side of the positioning plate (72); when the positioning plate (72) is located in the rotating area (712), the abutting component (64) abuts against the movable ring (61).

4. The photovoltaic flexible bracket according to claim 1, characterized in that: The solar panel (9) is fixed with at least two groups of connection mechanisms (8), and each group of the connection mechanisms (8) is respectively installed on two cables (2); wherein: The connecting mechanism (8) comprises a fixed seat (81) fixed to the solar panel (9) and a sliding seat (82) slidably mounted on the solar panel (9); adjacent sides of the fixed seat (81) and the sliding seat (82) are respectively provided with enclosing grooves (83); a locking assembly (84) is provided between the fixed seat (81) and the sliding seat (82); when the fixed seat (81) and the sliding seat (82) are connected to each other via the locking assembly (84), two adjacent enclosing grooves (83) together form an enclosed space for enclosing the cable (2).

5. The photovoltaic flexible bracket according to claim 4, characterized in that: The locking assembly (84) comprises an insertion rod (841) fixed to the side of the sliding seat (82) and a rotating blade (842) rotatably embedded in the outer peripheral surface of the insertion rod (841), a torsion spring is provided between the rotating blade (842) and the insertion rod (841), and the torsion spring is used to force the rotating blade (842) to be partially exposed from the insertion rod (841) under normal conditions; The fixed seat (81) is provided with an insertion hole (811) for the insertion rod member (841) to be matched and inserted; when the insertion rod member (841) passes through the insertion hole (811), the rotating blade (842) is completely retracted into the insertion rod member (841); when the rotating blade (842) leaves the insertion hole (811), the torsion spring forces the rotating blade (842) to return to its original position and abut against the side of the fixed seat (81) away from the sliding seat (82).

6. The photovoltaic flexible bracket according to claim 5, characterized in that: An unlocking ring (812) is rotatably mounted on the side of the fixed seat (81) away from the sliding seat (82); when the rotating blade (842) abuts against the side of the fixed seat (81) away from the sliding seat (82), the unlocking ring (812) is located on the outer peripheral side of each rotating blade (842); the inner ring of the unlocking ring (812) has a plurality of guiding protrusions (813); by rotating the unlocking ring (812) and the guiding protrusions (813), the rotating blade (842) can be forced to be completely retracted into the inside of the plug member (841).

7. The photovoltaic flexible bracket according to claim 1, characterized in that: The pre-tightening directions of every two adjacent pre-tightening devices (3) are arranged in opposite directions.

8. The photovoltaic flexible bracket according to claim 1, characterized in that: The tensioning component (5) is elliptical in shape, and the minimum distance between the extension channel (41) and the center point of the tensioning component (5) matches the length of the short side of the tensioning component (5).

9. A photovoltaic power station, characterized in that: It comprises a solar panel (9) and a photovoltaic flexible bracket as claimed in any one of claims 1 to 8, wherein the solar panel (9) is fixedly mounted on the photovoltaic flexible bracket.

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