Wind-resistant and vibration-resistant photovoltaic support

Abstract

This invention relates to the field of photovoltaic module support structure technology, specifically providing a wind-resistant and vibration-damping photovoltaic bracket, including a central pressure block. The central pressure block includes a pressure block, a bolt, a nut, a plastic wing, and a locking mechanism. The bolt is rotatably inserted into the pressure block, the nut is threadedly connected to the bolt, and the plastic wing is sleeved on the outside of the nut. The locking mechanism includes an upper ring, a middle ring, a lower ring, a first elastic element, a second elastic element, and a first limiting part. This invention, by setting second elastic elements on the left and right sides of the plastic wing's width direction, ensures that if the plastic wing and nut are not aligned and installed in the groove of the aluminum alloy guide frame, the second elastic element, which first contacts the lower edge of the inner bend, will push the plastic wing along the width direction of the T-slot under its own elastic force until the plastic wing and nut are aligned and installed in the T-slot of the aluminum alloy guide frame. This avoids the problem of uneven locking force caused by the plastic wing and nut being installed at an angle in the T-slot, thereby improving the wind and vibration resistance of the photovoltaic panel after installation.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module support structure technology, and in particular to a wind-resistant and vibration-damping photovoltaic bracket. Background Technology

[0002] In a photovoltaic (PV) mounting system, the structural component used to fix two adjacent PV panels is the intermediate pressure block. The stability of the connection between the intermediate pressure block and the PV panels is crucial for the wind and vibration resistance of the subsequent PV panels. The intermediate pressure block consists of a pressure block, plastic wing nuts, and internal hex bolts.

[0003] During installation, first place the plastic wing nut into the T-slot of the aluminum alloy guide rail frame, then rotate it 90 degrees so that the nut part of the plastic wing nut abuts against the inner top surface of the aluminum alloy guide rail frame. Next, place the pressure block on the plastic wing nut. Then, use hex socket head cap screws to pre-connect the plastic wing nut and the pressure block together. Next, adjust the position of the photovoltaic panel so that the frame of the photovoltaic panel corresponds to the position of the pressure block. Finally, rotate the nut so that the pressure block presses onto the frame of the photovoltaic panel with a preset preload. The installation is now complete.

[0004] However, the aforementioned intermediate pressure block has the drawback of requiring many operating steps during use. Furthermore, since the intermediate pressure block and the aluminum alloy guide rail frame are aligned and positioned using a nut, the nut has poor applicability; that is, one type of nut can only be used for one type of aluminum alloy guide rail frame. Summary of the Invention

[0005] Therefore, it is necessary to provide a wind-resistant and vibration-damping photovoltaic support system to address the problems existing in the current medium-voltage blocks, in order to solve the issues of numerous operation steps and poor applicability when installing medium-voltage blocks in photovoltaic support systems.

[0006] The above objectives are achieved through the following technical solutions: A wind-resistant and vibration-damping photovoltaic (PV) support bracket is used to support PV panels. The bracket includes a medium-pressure block, which comprises: Pressed blocks; Bolts are rotatably inserted into the pressure block; Nuts are used for threaded connections with bolts. Plastic wing, fitted onto the outside of the nut; The locking mechanism includes an upper ring, an intermediate ring, a lower ring, a first elastic element, a second elastic element, and a first limiting part. The upper ring, intermediate ring, and lower ring are coaxially arranged. The upper ring is located at the bottom of the pressure block, the lower ring is located at the top of the plastic wing, and the intermediate ring is sleeved outside the lower ring and configured to rotate synchronously with the lower ring in the circumferential direction and move relative to it in the axial direction, and to rotate synchronously with the bolt in the circumferential direction. The first elastic element is connected between the pressure block and the intermediate ring to prevent the intermediate ring and the upper ring from moving away from each other. The second elastic element is located on both sides in the width direction of the plastic wing. The first limiting part is located on the intermediate ring to limit the second elastic element from elastically arching to both sides in the width direction of the plastic wing. In the initial state, the first elastic element stores elastic force, and the first limiting part restricts the second elastic element from elastically arching to both sides in the direction of the plastic wing width; When the bolt rotates 90 degrees circumferentially relative to the upper ring, the elastic force of the first elastic element is released, causing the middle ring to move upward until the first limiting part removes the restriction and the second elastic element elastically arches to both sides in the direction of the plastic wing width.

[0007] Furthermore, a first stop is provided on one side of the bolt circumferentially, and a second stop is provided on one side of the inner circumference of the intermediate ring; In the initial state, the first and second blocks block each other.

[0008] Furthermore, a groove is provided on one circumferential side of the upper ring; The slot is circumferentially misaligned by 90 degrees with the second stop block in its initial state.

[0009] Furthermore, a guide strip is provided on one side of the outer circumferential surface of the lower ring, and the guide strip extends along the axis of the lower ring. A guide groove is provided on one side of the inner circumferential surface of the middle ring, and the guide groove slides in conjunction with the guide strip.

[0010] Furthermore, a screw cap is snapped onto the pressure block, and the screw cap is fitted onto the head of the bolt.

[0011] Furthermore, a third elastic element is provided on both sides of the plastic wing along its length, and a second limiting part is provided at the corresponding position on the middle ring. The second limiting part is used to restrict the third elastic element from elastically flattening to both sides of the plastic wing along its length. In the initial state, the second limiting part restricts the third elastic element from elastically flattening to both sides in the direction of the plastic wing length; When the middle ring moves upward until it disengages from the bolt, the second limiting part releases the restriction and the third elastic element elastically flattens out to both sides in the direction of the plastic wing length.

[0012] Furthermore, a retaining ring is provided on the bolt, and the distance between the retaining ring and the bolt head is equal to the thickness of the pressure block.

[0013] Furthermore, the lower surface of the pressure block is provided with an anti-slip texture.

[0014] Furthermore, the upper surface of the nut is provided with anti-slip wavy patterns.

[0015] Furthermore, a wind-resistant and vibration-damping photovoltaic support also includes a base, a column, a support beam, and an aluminum alloy guide rail frame. The column is vertically mounted on the base, the support beam is mounted on the top of the column, and there are multiple aluminum alloy guide rail frames spaced apart on the support beam. The intermediate pressure block is mounted on the aluminum alloy guide rail frame.

[0016] The beneficial effects of this invention are: 1. This invention features an upper ring, a lower ring, and a middle ring. After the nut rotates 90 degrees, the rotation angle of the nut is locked by the circumferential synchronous cooperation of the upper, middle, and lower rings, rather than by the dimensional limiting and locking cooperation between the nut and the aluminum alloy guide rail frame. Therefore, the middle pressure block in this invention can be adapted to multiple aluminum alloy guide rail frames of different specifications, exhibiting wide applicability. Furthermore, during the entire installation process, the operator only needs to rotate the bolts, requiring no additional operations, thus simplifying the operation steps and facilitating installation.

[0017] 2. This invention uses a pre-installed intermediate pressure block. When the intermediate pressure block is installed on the aluminum alloy guide rail frame, there is no need to leave operating space for manually assembling the pressure block, plastic wings and nuts. Therefore, the photovoltaic panel can be installed first, and then the intermediate pressure block can be installed according to the position of the photovoltaic panel.

[0018] 3. The present invention uses the elastic deformation of the second elastic element to center and install the plastic wing and nut in the aluminum alloy guide rail frame, avoiding the problem of uneven locking force caused by the plastic wing and nut being installed at an angle in the T-slot. This ensures that the photovoltaic panels held and fixed on both sides of the pressure block are subjected to uniform force, thereby improving the wind and vibration resistance of the photovoltaic panels after installation. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of a wind-resistant and vibration-damping photovoltaic support according to the present invention; Figure 2 for Figure 1 Side view; Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the pre-installation of the medium-pressure block of a wind-resistant and vibration-damping photovoltaic support according to the present invention; Figure 5 This is a schematic diagram showing the completed installation of the medium-pressure block of a wind-resistant and vibration-damping photovoltaic support according to the present invention; Figure 6 This is an exploded view of the medium-pressure block of a wind-resistant and vibration-damping photovoltaic support according to the present invention; Figure 7 for Figure 4 Top view; Figure 8 for Figure 7 BB section view; Figure 9 for Figure 7 CC section view; Figure 10 This is a front view of the middle pressure block of a wind-resistant and vibration-damping photovoltaic support according to the present invention; Figure 11 for Figure 10 DD section view; Figure 12 This is a schematic diagram of the pressure block structure of a wind-resistant and vibration-damping photovoltaic support according to the present invention; Figure 13 This is a schematic diagram of the plastic wing and nut of a wind-resistant and vibration-damping photovoltaic bracket according to the present invention; Figure 14 This is a schematic diagram of the connection structure of the intermediate ring of a wind-resistant and vibration-damping photovoltaic support according to the present invention; Figure 15 This is a schematic diagram of the bolt structure of a wind-resistant and vibration-damping photovoltaic support according to the present invention.

[0020] in: 100. Pressing block; 110. Anti-slip base texture; 120. Flange; 200, Bolt; 210, First stop block; 220, Screw cap; 230, Snap ring; 300, Nut; 310, Anti-slip wavy texture; 400, Plastic Wings; 500 Locking mechanism; 510 Upper ring; 511 Groove; 520 Intermediate ring; 521 Second stop block; 522 Guide groove; 530 Lower ring; 531 Guide strip; 540 First elastic element; 550 Second elastic element; 560 First limiting part; 570 Third elastic element; 571 Positioning block; 580 Second limiting part; 610. Base; 620. Column; 630. Support beam; 640. Aluminum alloy guide rail frame; 641. Inwardly curved lower edge; 642. T-slot; 700. Photovoltaic panels. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] The existing nut 300 is elongated, with rounded edges formed at two opposite corners. These rounded edges are used to avoid the inner wall of the aluminum alloy guide frame 640 when the nut 300 rotates, so that after rotating 90 degrees, the nut 300 is directly locked onto the aluminum alloy guide frame 640 (that is, after rotating 90 degrees, the nut 300 cannot continue to rotate in the same direction due to the limiting effect of the inner wall of the aluminum alloy guide frame 640). This achieves the centered installation of the nut 300 on the aluminum alloy guide frame 640. Therefore, in order to ensure that the nut 300 and the aluminum alloy guide frame 640 can be centered and fitted, one specification of nut 300 can only correspond to one specification of aluminum alloy guide frame 640.

[0025] The following reference Figures 1-15 This invention describes a wind-resistant and vibration-damping photovoltaic support.

[0026] A wind-resistant and vibration-damping photovoltaic bracket is used to support photovoltaic panels 700. The wind-resistant and vibration-damping photovoltaic bracket includes a base 610, a column 620, a support beam 630, an aluminum alloy guide rail frame 640, and a central pressure block. The base 610 is fixed on the ground, the column 620 is vertically installed on the base 610, the support beam 630 is installed on the top of the column 620, there are multiple aluminum alloy guide rail frames 640, and the multiple aluminum alloy guide rail frames 640 are spaced apart on the support beam 630. The central pressure block is installed on the aluminum alloy guide rail frame 640.

[0027] When installing photovoltaic panels 700, multiple photovoltaic panels 700 are installed at intervals on aluminum alloy guide rail frames 640. Then, the frames of two adjacent photovoltaic panels 700 and aluminum alloy guide rail frames 640 are fixedly connected together by a medium pressure block to make the photovoltaic panels 700 have high installation stability and achieve the purpose of wind resistance and vibration prevention.

[0028] The intermediate pressure block includes a pressure block 100, a bolt 200, a nut 300, a plastic wing 400, and a locking mechanism 500. The bolt 200 is rotatably inserted into the pressure block 100, the nut 300 is threadedly connected to the bolt 200, and the plastic wing 400 is sleeved on the outside of the nut 300. The locking mechanism 500 includes an upper ring 510, a middle ring 520, a lower ring 530, a first elastic element 540, a second elastic element 550, and a first limiting part 560. The upper ring 510, the middle ring 520, and the lower ring 530 are coaxially arranged. The upper ring 510 is located at the bottom of the pressure block 100, the lower ring 530 is located at the top of the plastic wing 400, and the middle ring 520 is sleeved on the outside of the lower ring 530 and configured to rotate synchronously with the lower ring 530 circumferentially and move relative to it axially, and to rotate synchronously with the bolt 200 circumferentially. The first elastic element 540 is connected between the pressure block 100 and the intermediate ring 520 to prevent the intermediate ring 520 and the upper ring 510 from moving away from each other. The second elastic element 550 is disposed on both sides of the plastic wing 400 in the width direction. The first limiting part 560 is disposed on the intermediate ring 520 to limit the second elastic element 550 from elastically arching to both sides of the plastic wing 400. In the initial state, the first elastic element 540 elastically stores force, and the first limiting part 560 limits the second elastic element 550 from elastically arching to both sides of the plastic wing 400 in the width direction. When the bolt 200 rotates 90 degrees circumferentially relative to the upper ring 510, the elastic force of the first elastic element 540 is released, causing the intermediate ring 520 to move upward until the first limiting part 560 releases the restriction on the second elastic element 550 from elastically arching to both sides of the plastic wing 400 in the width direction.

[0029] To ensure that the intermediate ring 520 and the lower ring 530 rotate synchronously in the circumference and move relatively in the axial direction, such as Figure 13 and Figure 14 As shown, a guide strip 531 is provided on one side of the outer circumferential surface of the lower ring 530. The guide strip 531 extends along the axis of the lower ring 530. A guide groove 522 is provided on one side of the inner circumferential surface of the middle ring 520. The guide groove 522 slides in cooperation with the guide strip 531.

[0030] To ensure that the intermediate ring 520 and bolt 200 can rotate synchronously in the circumference, such as Figure 11 , Figure 14 and Figure 15As shown, a first stop 210 is provided on one side of the circumference of the bolt 200, and a second stop 521 is provided on one side of the inner circumference of the intermediate ring 520; in the initial state, the first stop 210 and the second stop 521 block each other.

[0031] To prevent the first block 210 and the second block 521 from no longer blocking each other due to external impacts during transportation or stacking, it is preferable to magnetically connect the first block 210 and the second block 521 together.

[0032] To ensure that the first elastic element 540 is connected between the pressure block 100 and the intermediate ring 520, and to prevent the intermediate ring 520 and the upper ring 510 from moving away from each other, such as... Figure 6 and Figure 8 As shown, the first elastic element 540 is a tension spring, with its upper end located at the bottom of the pressure block 100 and its lower end located at the upper end of the intermediate ring 520.

[0033] In addition, the second stop 521 also has the function of elastically storing the first elastic element 540 in the initial state. When the first elastic element 540 is elastically stored, the intermediate ring 520 tends to move upward along its axis, but because the second stop 521 is in a stop-fitting engagement with the lower end face of the upper ring 510 at this time, the intermediate ring 520 cannot move upward, but instead maintains elastic storage.

[0034] To ensure that when bolt 200 rotates 90 degrees circumferentially relative to upper ring 510, the elastic force of first elastic element 540 is released, causing intermediate ring 520 to move upward, such as... Figure 6 and Figure 12 As shown, a slot 511 is provided on one circumferential side of the upper ring 510, and the slot 511 is circumferentially offset from the second stop 521 in its initial state by ninety degrees. Thus, when the bolt 200 rotates ninety degrees circumferentially relative to the upper ring 510, the second stop 521 and the slot 511 are circumferentially aligned. At this time, the second stop 521 no longer engages with the lower end face of the upper ring 510, and under the elastic force of the first elastic element 540, the middle ring 520 moves upward.

[0035] like Figure 4 and Figure 5 As shown, the second elastic element 550 is an elastic metal plate, which, when not subjected to external force, has the following shape: Figure 5 As shown, it is arched.

[0036] like Figure 4 and Figure 5 As shown, the first limiting part 560 is specifically a limiting stop, which is disposed outside the intermediate ring 520 and located in the middle position of the second elastic member 550. When the first limiting part 560 limits and stops the second elastic member 550, the second elastic member 550 has the following shape. Figure 4 As shown, it is flat.

[0037] The intermediate pressure block, comprising pressure block 100, bolt 200, plastic wing 400, and locking mechanism 500, is pre-installed together. The pre-installed intermediate pressure block is... Figure 4 In the state shown, the first elastic element 540 is elastically charged, the first limiting part 560 restricts the second elastic element 550 from elastically arching to both sides in the width direction of the plastic wing 400, and the first stop block 210 and the second stop block 521 block each other, with the second stop block 521 circumferentially misaligned with the groove 511 by ninety degrees. To prevent the pre-installed bolt 200 from rotating, a screw head cap 220 is engaged in the middle groove of the pressure block 100, and the screw head cap 220 is fitted onto the head of the bolt 200.

[0038] When installing the intermediate pressure block, the workers install the pre-installed intermediate pressure block onto the exposed aluminum alloy guide rail frame 640 between two adjacent photovoltaic panels 700. Specifically, the nut 300 of the intermediate pressure block is placed in the T-slot 642 of the aluminum alloy guide rail frame 640, and the two flanges 120 of the pressure block 100 are pressed against the photovoltaic panel 700 frame on the corresponding side. At this time, the second elastic element 550 is located at the height of the side edge of the inner curved lower edge 641 of the aluminum alloy guide rail frame 640.

[0039] Next, the workers remove the screw cap 220 and then turn the bolt 200 clockwise. With the stop of the first stop 210 and the second stop 521, the intermediate ring 520 rotates synchronously with the bolt 200. Since the intermediate ring 520 and the lower ring 530 are connected by the guide strip 531 and the guide groove 522, the intermediate ring 520 drives the lower ring 530 to rotate synchronously in the circumference. Since the lower ring 530 is set on the plastic wing 400, the plastic wing 400, the nut 300 and the lower ring 530 rotate synchronously.

[0040] When the bolt 200 rotates to 90 degrees, the second stop 521 coincides with the circumferential position of the slot 511. At this time, the second stop 521 no longer abuts against the lower end face of the upper ring 510. Under the elastic force of the first elastic member 540, the middle ring 520 moves upward until the second stop 521 and the first stop 210 are completely misaligned in the height direction. At this time, when the bolt 200 continues to rotate, it will not drive the middle ring 520 to rotate. The first limiting part 560 also no longer contacts the second elastic member 550. That is, the first limiting part 560 cancels the restriction that the second elastic member 550 elastically arches to both sides in the width direction of the plastic wing 400.

[0041] After the plastic wing 400 rotates 90 degrees, the two second elastic elements 550 face the corresponding sides of the inner curved lower edge 641 of the aluminum alloy guide frame 640. Therefore, if the plastic wing 400 and nut 300 are not aligned and installed in the T-slot 642 of the aluminum alloy guide frame 640 at this time, the second elastic element 550 that first contacts the side of the inner curved lower edge 641 will push the plastic wing 400 along the width direction of the T-slot 642 under its own elastic force until the force between the two second elastic elements 550 and the corresponding side of the inner curved lower edge 641 is the same. At this time, the plastic wing 400 and nut 300 are aligned and installed in the T-slot 642 of the aluminum alloy guide frame 640. Furthermore, after the intermediate ring 520 moves upward, the second stop 521 on the intermediate ring 520 engages with the slot 511 on the upper ring 510. Therefore, the pressure block 100, the upper ring 510, and the intermediate ring 520 are aligned and installed in the T-slot 642 of the aluminum alloy guide frame 640. The middle ring 520 is a single unit in the circumferential direction (i.e., when subjected to circumferential rotational force, the pressure block 100, upper ring 510, and middle ring 520 will rotate together; when the pressure block 100 is held still, the pressure block 100, upper ring 510, and middle ring 520 cannot rotate). The middle ring 520 is always engaged with the guide strip 531 on the lower ring 530 through the guide groove 522 on it. Therefore, the middle ring 520, lower ring 530, plastic wing 400, and nut 300 are also a single unit in the circumferential direction of the middle ring 520. Therefore, when the bolt 200 is rotated, as long as the worker holds the pressure block 100 with his hand, the nut 300 will not deflect, thus ensuring that the contact area between the nut 300 and the lower edge of the two inner curved lower edges 641 is the same, so as to ensure that the preload force between the nut 300 and the two inner curved lower edges 641 is evenly distributed during subsequent preload.

[0042] It is understood that in the above process, the position locking of the nut 300 after rotating 90 degrees is achieved by the circumferential synchronous cooperation of the upper ring 510, the middle ring 520 and the lower ring 530, rather than by the dimensional limiting locking cooperation between the nut 300 and the aluminum alloy guide rail frame 640. Therefore, the middle pressure block in this invention can be adapted to multiple aluminum alloy guide rail frames 640 of different specifications, thus having a wide range of applicability.

[0043] Next, the worker presses down on the pressure block 100 by hand and then continues to rotate the bolt 200 until the pressure block 100 is pressed onto the frame of the photovoltaic panel 700 with a preset pre-tightening force. Since the plastic wing 400 and nut 300 are already aligned and installed within the T-slot 642 of the aluminum alloy guide rail frame 640 before pre-tightening, the problem of uneven locking force caused by the plastic wing 400 and nut 300 being misaligned within the T-slot 642 can be avoided. This ensures that the photovoltaic panel 700, held and fixed on both sides of the pressure block 100, experiences uniform force, thereby improving the wind and vibration resistance of the photovoltaic panel 700 after installation. Furthermore, throughout the entire installation process, the worker only needs to rotate the bolt 200 without any additional operations, thus simplifying the process and facilitating installation.

[0044] After pre-tightening, the worker reinstalls the nut cap 220 onto the head of the bolt 200, thus protecting the bolt 200 from rainwater corrosion and rust, which facilitates subsequent disassembly and maintenance. Furthermore, compared to the exposed installation method of the bolt 200 in existing technologies, this invention provides circumferential protection for the bolt 200 by setting up an upper ring 510, an intermediate ring 520, and a lower ring 530, thereby also helping to protect the bolt 200's threads from rainwater corrosion.

[0045] It should be noted that this invention employs pre-installed intermediate pressure blocks. When subsequently installing the intermediate pressure blocks onto the aluminum alloy guide rail frame 640, there is no need to leave operating space for manually assembling the pressure block 100, plastic wing 400, and nut 300. Therefore, the photovoltaic panel 700 can be installed first, and then the intermediate pressure block can be installed according to the position of the photovoltaic panel 700. In the prior art, because operating space for manually assembling the pressure block 100, plastic wing 400, and nut 300 is required, operators typically first push one photovoltaic panel 700 to a position that does not interfere with the assembly operation, and then assemble the pressure block 100, plastic wing 400, and nut 300. After assembly, the photovoltaic panel 700 is dragged so that the two flanges 120 of the pressure block 100 are correspondingly pressed onto the edges of the two photovoltaic panels 700. Therefore, this invention is more efficient in installing and fixing the photovoltaic panel 700.

[0046] It should also be noted that in the prior art, after the plastic wing 400 and the nut 300 are placed on the aluminum alloy guide rail frame 640 and the nut 300 is rotated 90 degrees, the pressure block 100, the plastic wing 400 and the nut 300 are fixed together by the bolt 200. During the rotation of the bolt 200, because the friction between the nut 300 and the lower inner curved edge 641 of the aluminum alloy guide rail frame 640 is small, the nut 300 is easily rotated by force when the bolt 200 is rotated. As a result, there will be a difference in the contact area between the nut 300 and the lower edge of the two lower inner curved edges 641, which will lead to uneven distribution of the preload at the two lower inner curved edges 641. In this invention, after the nut 300 rotates 90 degrees, the upper ring 510, the middle ring 520, and the lower ring 530 form a circumferential synchronous engagement. Therefore, when the operator rotates the bolt 200, they only need to press the pressure block 100 by hand to ensure that the plastic wing 400 and the nut 300 will not be deflected by force. This ensures that the preload is evenly distributed on the lower edges of the two inner curved lower edges 641. In addition, since the aluminum alloy guide rail frame 640 in this invention is fixedly installed first, the limiting engagement between the aluminum alloy guide rail frame 640 and the right-angle side of the pressure block 100 can prevent the pressure block 100 from being deflected by force, thereby ensuring that the nut 300 will not be rotated by force when the bolt 200 is rotated subsequently.

[0047] In a further embodiment, such as Figure 4 and Figure 5 As shown, third elastic members 570 are provided on both sides of the plastic wing 400 along its length, and a second limiting part 580 is provided at the corresponding position on the intermediate ring 520. The second limiting part 580 is used to restrict the third elastic members 570 from elastically flattening to both sides of the plastic wing 400 along its length. In the initial state, the second limiting part 580 restricts the third elastic members 570 from elastically flattening to both sides of the plastic wing 400 along its length. When the intermediate ring 520 moves upward until the intermediate ring 520 disengages from the bolt 200, the second limiting part 580 releases the restriction on the third elastic members 570 from elastically flattening to both sides of the plastic wing 400 along its length.

[0048] like Figure 4 and Figure 5 As shown, the third elastic element 570 is an elastic metal plate, which, when not subjected to external force, has the following shape: Figure 5 As shown, it is a planar shape.

[0049] like Figure 4 and Figure 5 As shown, the second limiting part 580 is a limiting gripper, which is disposed outside the intermediate ring 520 and located in the middle position of the third elastic member 570. When the second limiting part 580 releases its limiting stop on the third elastic member 570, the third elastic member 570 has the following shape. Figure 5 As shown, it is a planar shape.

[0050] When the plastic wing 400 rotates 90 degrees, the two third elastic elements 570 face the frame of the photovoltaic panel 700 on the corresponding side. Under the elastic force of the first elastic element 540, the middle ring 520 moves upward until the middle ring 520 disengages from the bolt 200. At this time, the second limiting part 580 removes the restriction and the third elastic element 570 elastically flattens out to both sides in the length direction of the plastic wing 400. After the third elastic element 570 elastically flattens out, the positioning block 571 on the third elastic element 570 forms a support for the bottom of the photovoltaic panel 700 frame to enhance the stability of the photovoltaic panel 700 after installation and improve its wind and vibration resistance.

[0051] In a further embodiment, such as Figure 6 and Figure 8 As shown, a retaining ring 230 is provided on the bolt 200, and the distance between the retaining ring 230 and the head of the bolt 200 is equal to the thickness of the pressure block 100.

[0052] The function of the retaining ring 230 is to position the bolt 200 so that the bolt 200 cannot move axially relative to the pressure block 100. In this way, when the bolt 200 is rotated laterally, under the guidance of the nut 300, the bolt 200 rotates circumferentially and drives the pressure block 100 to move downward along the bolt 200 axis, thereby pre-tightening the pressure block 100 on the photovoltaic panel 700 frame.

[0053] In a further embodiment, such as Figure 6 As shown, the lower surface of the pressure block 100 is provided with an anti-slip texture 110.

[0054] The purpose of setting the anti-slip texture 110 is to increase the friction between the photovoltaic panel 700 frame and the pressure block 100, thereby improving the wind and vibration resistance of the photovoltaic bracket.

[0055] In a further embodiment, such as Figure 5 As shown, the upper surface of the nut 300 is provided with anti-slip wave pattern 310.

[0056] The purpose of setting the anti-slip wave pattern 310 is to increase the friction between the nut 300 and the inner curved lower edge 641, thereby improving the stability of the nut 300 after installation and improving the wind and vibration resistance of the photovoltaic bracket.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A wind-resistant and vibration-damping photovoltaic support for supporting photovoltaic panels, characterized in that, The wind- and vibration-resistant photovoltaic support system includes: a medium-voltage block, which includes: Pressed blocks; Bolts are rotatably inserted into the pressure block; Nuts are used for threaded connections with bolts. Plastic wing, fitted onto the outside of the nut; The locking mechanism includes an upper ring, an intermediate ring, a lower ring, a first elastic element, a second elastic element, and a first limiting part. The upper ring, intermediate ring, and lower ring are coaxially arranged. The upper ring is located at the bottom of the pressure block, the lower ring is located at the top of the plastic wing, and the intermediate ring is sleeved outside the lower ring and configured to rotate synchronously with the lower ring in the circumferential direction and move relative to it in the axial direction, and to rotate synchronously with the bolt in the circumferential direction. The first elastic element is connected between the pressure block and the intermediate ring to prevent the intermediate ring and the upper ring from moving away from each other. The second elastic element is located on both sides in the width direction of the plastic wing. The first limiting part is located on the intermediate ring to limit the second elastic element from elastically arching to both sides in the width direction of the plastic wing. In the initial state, the first elastic element stores elastic force, and the first limiting part restricts the second elastic element from elastically arching to both sides in the direction of the plastic wing width; When the bolt rotates 90 degrees circumferentially relative to the upper ring, the elastic force of the first elastic element is released, causing the middle ring to move upward until the first limiting part removes the restriction and the second elastic element elastically arches to both sides in the direction of the plastic wing width.

2. The wind-resistant and vibration-damping photovoltaic support according to claim 1, characterized in that, A first stop is provided on one side of the bolt circumferentially, and a second stop is provided on one side of the inner circumference of the middle ring; In the initial state, the first and second blocks block each other.

3. A wind-resistant and vibration-damping photovoltaic support according to claim 2, characterized in that, A groove is provided on one circumferential side of the upper ring; The slot is circumferentially misaligned by 90 degrees with the second stop block in its initial state.

4. A wind-resistant and vibration-damping photovoltaic support according to claim 1, characterized in that, A guide strip is provided on one side of the outer circumferential surface of the lower ring, and the guide strip extends along the axis of the lower ring. A guide groove is provided on one side of the inner circumferential surface of the middle ring, and the guide groove slides in conjunction with the guide strip.

5. A wind-resistant and vibration-damping photovoltaic support according to claim 1, characterized in that, A screw cap is snapped onto the pressure block, and the screw cap is fitted onto the head of the bolt.

6. A wind-resistant and vibration-damping photovoltaic support according to claim 2, characterized in that, A third elastic element is provided on both sides of the length direction of the plastic wing, and a second limiting part is provided at the corresponding position on the middle ring. The second limiting part is used to restrict the third elastic element from elastically flattening to both sides of the length direction of the plastic wing. In the initial state, the second limiting part restricts the third elastic element from elastically flattening to both sides in the direction of the plastic wing length; When the middle ring moves upward until it disengages from the bolt in the circumferential stop, the second limiting part releases the restriction and the third elastic element elastically flattens out to both sides in the direction of the plastic wing length.

7. A wind-resistant and vibration-damping photovoltaic support according to claim 1, characterized in that, A retaining ring is installed on the bolt, and the distance between the retaining ring and the bolt head is equal to the thickness of the pressure block.

8. A wind-resistant and vibration-damping photovoltaic support according to claim 1, characterized in that, The lower surface of the pressure block is provided with anti-slip texture.

9. A wind-resistant and vibration-damping photovoltaic support according to claim 1, characterized in that, The upper surface of the nut is provided with anti-slip wavy texture.

10. A wind-resistant and vibration-damping photovoltaic support according to claim 1, characterized in that, It also includes a base, columns, support beams and aluminum alloy guide rail frames. The columns are vertically mounted on the base, the support beams are mounted on the top of the columns, and there are multiple aluminum alloy guide rail frames, which are spaced apart on the support beams. The intermediate pressure block is mounted on the aluminum alloy guide rail frames.

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