Fixing assembly and roof structure for photovoltaic power generation

Abstract

The utility model provides a fixing assembly and a roof structure used for photovoltaic power generation, and the fixing assembly comprises a first clamping piece; the second clamping piece and the first clamping piece are arranged in a spaced mode, and a clamping space is formed between the second clamping piece and the first clamping piece; the bolt is movably arranged on the first clamping piece and the second clamping piece in a penetrating mode at the same time, and a nut is arranged at the first end of the bolt; and the limiting piece is connected to the second end of the bolt, and a limiting space is formed between the nut and the limiting piece so as to limit the first clamping piece and the second clamping piece in the limiting space to be separated from the bolt. According to the fixing assembly, the bolt penetrates through the first clamping piece and the second clamping piece and is movably connected with the first clamping piece and the second clamping piece, so that the first clamping piece, the second clamping piece and the bolt form a whole, and the assembly efficiency of field operation is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, and in particular to a fixing component and a roof structure for photovoltaic power generation. Background Art

[0002] With the popularization of photovoltaic power generation technology, distributed photovoltaic power generation technology is becoming more and more popular among users. Distributed photovoltaic power generation usually refers to a power generation system that utilizes decentralized resources, has a smaller installed capacity, and is arranged near users, usually installed on residents' own roofs.

[0003] At present, when users install distributed photovoltaic power generation equipment, they usually use an integrated roof and directly make a special-shaped structure on the roof to facilitate installation with photovoltaic modules. This method eliminates the need for brackets, reduces overall costs, and can also prevent roof leaks.

[0004] After the roof is laid, a pressure block needs to be installed on the roof. The current common practice is to fix it with a bolt and a clamping piece with a screw hole in conjunction with the installation groove on the roof. During on-site operations, the bolt needs to be passed through the hole in the middle of the pressure block first, and then assembled with the clamping piece. The sizes of the components are adjusted, and then adjusted to a suitable angle, and the clamping piece is placed in the roof groove. Finally, the bolt is tightened with an electric tool to clamp the clamping piece and the pressure block.

[0005] However, in the prior art, since the bolt, the pressing block and the clamping sheet are three independent components,

[0006] Shipping them separately is not only easy to lose, but also requires assembly on site, so the installation efficiency is low. Utility Model Content

[0007] The utility model aims to at least solve the problem in the prior art that bolts, pressure blocks and clamping plates are three independent components, which are not only easy to lose but also need to be assembled on site, resulting in low installation efficiency. A fixing assembly and a roof structure for photovoltaic power generation are proposed.

[0008] In order to achieve the purpose of the utility model, a fixing assembly is provided, including: a first clamping member; a second clamping member, which is spaced apart from the first clamping member, and a clamping space is formed between the second clamping member and the first clamping member; a bolt, which is movably passed through the first clamping member and the second clamping member, and the first end of the bolt has a nut; a limiting member, which is connected to the second end of the bolt, and a limiting space is formed between the nut and the limiting member to limit the first clamping member and the second clamping member in the limiting space from detaching from the bolt.

[0009] Optionally, the second clamping member is located between the limiting member and the first clamping member; the second clamping member has a screw hole, and the bolt is rotatably disposed in the screw hole. The bolt drives the second clamping member to move closer to or away from the limiting member by rotation to expand or reduce the clamping space.

[0010] Optionally, in the first rotation direction of the bolt, the bolt drives the second clamping member to move toward the limit member, and the second clamping member has a first position that abuts against the limit member; in the first position of the second clamping member, the bolt drives the second clamping member to rotate in the same direction by rotating along the first rotation direction.

[0011] Optionally, the limiting member is fixedly connected to the bolt, a first limiting portion is provided on the limiting member, and a second limiting portion matching the first limiting portion is provided on the second clamping member; in the first position of the second clamping member, the first limiting portion and the second limiting portion are limitedly cooperated so that the bolt drives the second clamping member to rotate through the limiting member.

[0012] Optionally, the first limiting portion is a ratchet structure, and the second limiting portion is a convex strip.

[0013] Optionally, the ratchet structure includes a plurality of ratchets arranged along the first rotation direction of the bolt, and on the same ratchet, the height of the ratchet gradually increases along the first rotation direction of the bolt.

[0014] Optionally, the limiting member is a flange nut, and the limiting member and the bolt are fixed by riveting.

[0015] Optionally, the fixing assembly further includes: an elastic limiting sleeve, which is sleeved on the bolt, and the elastic limiting sleeve is located between the first clamping member and the second clamping member to limit the distance between the first clamping member and the second clamping member.

[0016] Optionally, the fixing assembly has a locking state for clamping on an attachment; in the locking state of the fixing assembly, the axial spacing between the first clamping member and the second clamping member is D, the length of the elastic limit sleeve is L, and the relationship between L and D satisfies: 0.1 mm

[0017] ≤LD≤3mm.

[0018] According to the second aspect of the utility model, a roof structure for photovoltaic power generation is also disclosed, including: an attachment for being arranged on the roof; a photovoltaic component; and the above-mentioned fixing component, wherein the photovoltaic component is connected to the attachment through the fixing component.

[0019] The fixing assembly of the utility model is achieved by simultaneously and movably passing the bolt through the first clamp and the second clamp, that is, the bolt passes through the first clamp and the second clamp while maintaining a movable connection with the two, so that the first clamp and the second clamp can be moved, and the first clamp and the second clamp are limited by the nut and the limiter, so that the first clamp and the second clamp cannot be separated from the bolt, so that the first clamp, the second clamp and the bolt form a whole. During on-site construction, the fixing assembly can be directly installed where it is needed, eliminating the step of assembling the bolt, the first clamp and the second clamp together, thereby greatly improving the assembly efficiency. In addition, since the first clamp and the second clamp cannot be separated from the bolt, there will be no problem of parts loss or untimely delivery during the logistics transportation process, thereby improving the overall progress of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the fixing assembly of an embodiment of the utility model;

[0021] Figure 2 An exploded view of a fixing assembly according to an embodiment of the present utility model;

[0022] Figure 3 A three-dimensional diagram of a fixing assembly according to an embodiment of the present utility model;

[0023] Figure 4 It is a schematic diagram of a bolt of a fixing assembly according to an embodiment of the utility model rotating along a first rotation direction;

[0024] Figure 5 It is a schematic diagram of a bolt of a fixing assembly according to an embodiment of the utility model rotating along a second rotation direction;

[0025] Figure 6 It is a schematic diagram of the cooperation between the limiting member and the second clamping member of the fixing assembly of the embodiment of the utility model;

[0026] Figure 7 It is a schematic structural diagram of the ratchet of the limiting member of the fixing assembly of the embodiment of the utility model;

[0027] Figure 8 for Figure 1 Sectional view along the AA direction;

[0028] Fig. 9 This is a structural schematic diagram of a roof structure according to an embodiment of the utility model;

[0029] Fig.10 A schematic structural diagram of a roof structure of another embodiment of the utility model;

[0030] List of reference numerals:

[0031] 10. first clamping member; 11. assembly groove; 12. through hole; 20. second clamping member;

[0032] 21. Screw hole; 22. Second limiting portion; 23. Anti-slip structure; 30. Clamping space; 40. Bolt; 41. Nut; 42. Assembly section; 50. Limiting member; 51. First limiting portion; 511. Ratchet; 512. Limiting end face; 513. Transition end face; 60. Elastic limiting sleeve; 70. Attachment; 71. Mounting groove; 72. Inner protrusion; 73. Inner folding edge. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the fixing assembly provided by the present invention and the roof structure for photovoltaic power generation are described in detail below in conjunction with the accompanying drawings.

[0034] In the prior art, after the roof is laid, a fixing assembly for connecting the photovoltaic module and the fixing assembly needs to be installed on the roof. The fixing assembly usually includes a bolt and a clamping piece with a screw hole fixed with a mounting groove on the roof.

[0035] During on-site operations, since the bolts, clamping pieces and pressure blocks are all separate components, they need to be transported to the site for assembly. During assembly, the bolts need to be passed through the hole in the middle of the pressure block first, and then assembled with the screw holes of the clamping piece. By turning the bolts, the distance between the clamping piece and the pressure block, as well as the angle of the clamping piece, are adjusted. The clamping piece is placed in the installation groove of the roof, and then the bolts are tightened with an electric tool to clamp it with the pressure block.

[0036] However, in the prior art, since the bolt, the pressure block and the clamping piece are three independent parts, they need to be assembled on site, and the distance between the pressure block and the clamping piece needs to be repeatedly adjusted during the installation process to match the thickness of the notch position of the installation slot, so the efficiency is low. In addition, since the three independent parts will be shipped separately, there is a risk that some parts will not be delivered in time or lost during the logistics transportation process, which will affect the progress of the project.

[0037] Moreover, during on-site operations, if problems are found after the fixed component is assembled and it needs to be disassembled, the clamping piece has been clamped in the mounting groove during assembly, and the clamping piece is tightly engaged with the mounting surface of the mounting groove. Therefore, when disassembly is required, even if the bolt is rotated in the opposite direction, the clamping piece will not easily detach from the mounting surface of the mounting groove, and the bolt can only be taken out. Therefore, other tools are needed to remove the clamping piece, which reduces the efficiency of on-site operations.

[0038] In order to solve the above problems, Figure 1 and Figure 2The embodiment of the utility model shown discloses a fixing assembly, including: a first clamping member 10, a second clamping member 20, a bolt 40 and a limiting member 50. The second clamping member 20 is spaced apart from the first clamping member 10, and a clamping space 30 is formed between the second clamping member 20 and the first clamping member 10; the bolt 40 is movably inserted through the first clamping member 10 and the second clamping member 20 at the same time, and a nut 41 is provided at the first end of the bolt 40; the limiting member 50 is connected to the second end of the bolt 40, and a limiting space is formed between the nut 41 and the limiting member 50 to limit the first clamping member 10 and the second clamping member 20 in the limiting space from being separated from the bolt 40.

[0039] The fixing assembly of the utility model is provided by movably passing the bolt 40 through the first clamp 10 and the second clamp 20 at the same time, that is, the bolt 40 penetrates the first clamp 10 and the second clamp 20 while maintaining a movable connection with the two, so that the first clamp 10 and the second clamp 20 can be moved, and the nut 41 and the limiter 50 are used to limit the first clamp 10 and the second clamp 20 so that the first clamp 10 and the second clamp 20 cannot be separated from the bolt 40, that is, the first clamp 10, the second clamp 20 and the bolt 40 form a whole, and are pre-assembled as a whole fixing assembly during production. During on-site construction, the fixing assembly can be directly installed where it is needed, eliminating the step of assembling the bolt 40, the first clamp 10 and the second clamp 20 together at the construction site, thereby greatly improving the construction efficiency of the construction site. In addition, since the first clamp 10 and the second clamp 20 cannot be separated from the bolt 40, there is no risk of parts being lost or delivered untimely during the logistics transportation process, thereby ensuring the overall progress of the project.

[0040] In this embodiment, the second clamping member 20 is located between the limiting member 50 and the first clamping member 10, that is, in the direction from the nut 41 of the bolt 40 to the limiting member 50 (i.e. Figure 1 In the top-to-bottom direction in the figure, the first clamping member 10 and the second clamping member 20 are arranged in sequence.

[0041] In this embodiment, if Figure 2 and Figure 3 As shown, the first clamping member 10 is a metal pressing block used to connect with the photovoltaic module. Figure 3 As shown, the metal pressing block is provided with an assembly groove 11 for assembling with the photovoltaic module. Figure 2 As shown, the first clamping member 10 is provided with a through hole 12, the inner diameter of the through hole 12 is slightly larger than the outer diameter of the bolt 40 but smaller than the outer diameter of the nut 41, so that a movement gap can be formed between the bolt 40 and the nut 41 can also achieve limited fit.

[0042] In this embodiment, the second clamping member 20 is a clamping piece, which has a first side facing the first clamping member 10 and a second side facing the stopper 50. The second clamping member 20 has a screw hole 21, which runs from the first side to the second side of the second clamping member 20. The bolt 40 is rotatably disposed in the screw hole 21 and threadedly engaged with the screw hole 21. The bolt 40 drives the second clamping member 20 to approach or move away from the stopper 50 by rotating, so as to expand or reduce the clamping space 30.

[0043] Specifically, the bolt 40 has a first rotation direction and a second rotation direction opposite to the first rotation direction, wherein the second rotation direction is a direction for locking the fixing assembly, that is, by rotating the bolt 40 along the second rotation direction, the fixing assembly clamp can enter a locked state; the first rotation direction is a direction for unlocking the fixing assembly, that is, by rotating the bolt 40 along the first rotation direction, the fixing assembly clamp can enter an unlocked state, such as Figure 4 As shown by the arrow in the middle, the first rotation direction is the direction of counterclockwise rotation around the axis of the bolt 40, and the second rotation direction is as shown in the middle arrow. Figure 5 The direction of rotation about the axis of the bolt 40 is shown clockwise.

[0044] See also Figure 4 and Figure 5 In the second rotation direction of the bolt 40, the bolt 40 rotates relative to the second clamping member 20, so that the second clamping member 20 and the limiting member 50 move away from each other, that is, the second clamping member 20 and the first clamping member 10 move closer to each other, thereby reducing the clamping space 30. In the first rotation direction of the bolt 40, the bolt 40 rotates relative to the first clamping member 10, so that the limiting member 50 moves closer to the second clamping member 20.

[0045] like Figure 4 As shown, when the bolt 40 continues to rotate along the first rotation direction, the limit member 50 rotates synchronously with the bolt 40 and moves toward the second clamping member 20 until it abuts against the second clamping member 20. At this time, the position of the limit member 50 is the first position. If the bolt 40 continues to rotate along the first rotation direction, the limit member 50 that rotates synchronously with the bolt 40 can drive the second clamping member 20 to rotate along the first rotation direction.

[0046] Specifically, the stopper 50 is fixedly connected to the bolt 40. Figure 6 As shown, a first limiting portion 51 is provided on the side of the limiting member 50 facing the second clamping member 20, and a second limiting portion 22 matching the first limiting portion 51 is provided on the second side of the second clamping member 20; in the first position of the second clamping member 20, the first limiting portion 51 and the second limiting portion 22 are limitedly matched so that the bolt 40 drives the second clamping member 20 to rotate through the limiting member 50.

[0047] like Figure 6As shown, in this embodiment, the first limiting portion 51 is a ratchet structure, and the second limiting portion 22 is a convex strip. The ratchet structure includes a plurality of Figure 6 The ratchet 511 arranged in the first rotation direction, such as Figure 7 As shown, each ratchet tooth 511 has a limiting end face 512 and a transition end face 513, wherein a first angle α is formed between the limiting end face 512 and the rotation plane of the limiting member 50, and a second angle β is formed between the transition end face 513 and the rotation plane of the limiting member 50, and α>β, so that the limiting end face 512 can only cooperate with the convex strip in the first rotation direction to drive the second clamping member 20 to rotate in the same direction.

[0048] It should be noted that, in the present embodiment, the second position-limiting portion 22 is a convex strip structure, but this is not restrictive. In some other embodiments not shown in the figure, the second position-limiting portion 22 may also be a ratchet structure, in which the orientation of the ratchet 511 is opposite to the orientation of the ratchet 511 on the first position-limiting portion 51, so as to cooperate with the upper limit in the first rotation direction, and at the same time, can rotate with each other in the second rotation direction. The above structure is also within the protection scope of the present utility model without violating the inventive concept of the present utility model.

[0049] During assembly, the second clamping member 20 is first placed in the mounting groove 71 of the attachment 70, and then the clamping space 30 can be reduced by rotating the bolt 40 along the second rotation direction, so that the first clamping member 10 and the second clamping member 20 are clamped on the attachment 70 to be clamped and fixed. At the same time, the two ends of the second clamping member 20 also deform the side walls of the mounting groove 71 against the top, so that the second clamping member 20 is clamped between the groove walls of the mounting groove 71, not only forming an axial clamping limit, but also forming a clamping limit in the horizontal direction. When the fixing assembly needs to be removed, the bolt 40 is first rotated along the first rotation direction. At this time, since the first clamping member 10 and the attachment 70 are already clamped, the first clamping member 10 is relatively stationary, and the bolt 40 rotates along the first rotation direction to make the limit member 50 gradually approach the second clamping member 20, that is, the limit member 50 will gradually move to the first position. After the limiting member 50 is in the first position, the first limiting portion 51 and the second limiting portion 22 are in contact with each other, that is, the ratchet structure will engage with the convex strip. Since the ratchet 511 has a limiting end face 512, when the limiting member 50 rotates along the first rotation direction of the bolt 40, the limiting end face 512 on the ratchet 511 will be stuck on the convex strip, so that the first limiting portion 51 and the second limiting portion 22 can achieve limiting cooperation when the limiting member 50 rotates along the first rotation direction of the bolt 40. When the limiting member 50 rotates along the second rotation direction of the bolt 40, the transition end face 513 cannot cooperate with the convex strip, so the rotation between the limiting member 50 and the second clamping member 20 will not be restricted.

[0050] That is to say, since the bolt 40 is fixedly connected to the stopper 50, when the bolt 40 rotates along the first rotation direction, the stopper 50 will also be driven to rotate along the first rotation direction. At this time, since the first stopper 51 and the second stopper 22 realize the limit fit when the stopper 50 rotates along the first rotation direction, the stopper 50 will drive the second clamping member 20 to rotate along the first rotation direction through the limit fit of the first stopper 51 and the second stopper 22, so that the angle of the second clamping member 20 changes, and the clamping state with the attachment surface is separated, thereby improving the removal efficiency. In addition, during the initial removal process, the convex strip may be damaged by the ratchet structure during the process of cooperating with the ratchet structure. Even so, after the convex strip is damaged, an irregular matching surface will be generated on the second side of the second clamping member 20, and the matching surface can still cooperate with the ratchet structure to play the same role as the convex strip. Therefore, if the installation is still not in place next time, during the removal process, the limiting member 50 and the second clamping member 20 can still achieve limiting cooperation, thereby improving the removal efficiency.

[0051] It should be noted that, in the present embodiment, during the rotation of the limit member 50 along the first rotation direction, the limit member 50 and the second clamping member 20 are limited by the first limit portion 51 and the second limit portion 22, but this is not restrictive. In some other embodiments not shown in the figure, only the first limit portion 51 can be set on the limit member 50 or only the second limit portion 22 can be set on the second clamping member 20. By setting the first limit portion 51 or the second limit portion 22, the resistance during relative rotation can be increased, so that the limit member 50 drives the second clamping member 20 to rotate through the resistance, which is also achievable.

[0052] In addition, in some other embodiments not shown in the figure, the limiting member 50 can also be in direct contact with the second clamping member 20, that is, neither the first limiting member 50 nor the second limiting member 50 is provided. During the process of the bolt 40 rotating along the first rotation direction, the thread cooperates with the screw hole 21 of the second clamping member 20, and an external force against the limiting member 50 can be applied to the second clamping member 20. Under the action of the external force, the extrusion force between the second clamping member 20 and the limiting member 50 will be very large, so a large friction force will be generated between the two, so that when the bolt 40 drives the limiting member 50 to rotate, the limiting member 50 can drive the second clamping member 20 to rotate together through the friction force. Therefore, as long as the bolt 40 drives the second clamping member 20 to rotate along the first rotation direction, it is within the protection scope of the present utility model.

[0053] In this embodiment, the limiter 50 is a flange nut, and the limiter 50 is fixed to the bolt 40 by riveting. The fixing assembly of this embodiment adopts a flange nut in combination with a riveting process, which can realize mechanized production and reduce the cost of product improvement. A flange nut is a nut having a wide flange at one end, and a serrated structure (i.e., a ratchet structure in this embodiment) on the wide flange to provide a locking effect. During the production process, a section 42 with a smaller outer diameter can be cut from the second end of the bolt 40, and then the flange nut can be sleeved on the assembly section 42, and then riveted by using a press to deform the second end of the bolt 40 and fix the flange. In this way, since the flange nut is a ready-made part and the process is relatively simple, it can be modified on the basis of the existing bolt 40, which can greatly reduce the material cost and process cost.

[0054] It can be understood that, in this embodiment, the first side of the second clamping member 20 is designed with an anti-slip structure 23, that is, the side of the second clamping member 20 facing the first clamping member 10 is provided with an anti-slip structure 23. After the fixing assembly is installed in place, the second clamping member 20 and the roof are prevented from sliding relative to each other, which can improve the reliability of the connection between the fixing assembly and the roof. In this embodiment, the anti-slip structure 23 is an anti-slip rib.

[0055] It should be noted that in the present embodiment, although the anti-slip structure 23 is an anti-slip rib, this is not restrictive. In some other embodiments not shown in the figure, the anti-slip structure 23 can also be a structure such as a convex point or a serrated structure. As long as the structure can play an anti-slip role, it is within the protection scope of the present utility model without violating the inventive concept of the present utility model.

[0056] like Figure 2 and Figure 8 As shown, in this embodiment, the fixing assembly further includes: an elastic limiting sleeve 60, which is sleeved on the bolt 40, and the elastic limiting sleeve 60 is located between the first clamping member 10 and the second clamping member 20 to control the distance between the first clamping member 10 and the second clamping member 20. By setting the elastic limiting sleeve 60, in the process of producing the fixing assembly, it is possible to prevent the assembly position of the second clamping member 20 from being too close to the position of the first clamping member 10, so that the distance between the first clamping member 10 and the second clamping member 20 is too small, resulting in the need to adjust the distance again during the on-site operation, thereby affecting the operation efficiency. In addition, it is also possible to prevent the distance between the first clamping member 10 and the second clamping member 20 from being too small due to factors such as vibration and bumps during transportation, thereby improving the efficiency of on-site operations.

[0057] It is understandable that in order to ensure the efficiency of on-site operations, the length of the elastic limit sleeve 60 should be greater than the distance between the first clamp 10 and the second clamp 20 after the fixing assembly is assembled to the attachment 70. Therefore, by setting the elastic limit sleeve 60, in the process of assembling the fixing assembly to the attachment 70, the distance between the first clamp 10 and the second clamp 20 becomes smaller and smaller until it is less than the length of the elastic limit sleeve 60. The first clamp 10 and the second clamp 20 will squeeze the elastic limit sleeve 60, and the elastic limit sleeve 60 will shrink after being squeezed to avoid affecting the first clamp 10 and the second clamp 20 tightening the roof.

[0058] It should be noted that in the locked state of the fixed component, such as Fig. 9 As shown, the axial distance between the first clamping member 10 and the second clamping member 20 is D. Figure 2 As shown, the length of the elastic limiting sleeve 60 is L, and the relationship between L and D satisfies: 0.1mm≤LD≤3mm. In the preferred embodiment, LD=2mm.

[0059] The purpose of the above structure is that, in the locked state, the elastic limit sleeve 60 is compressed in the axial direction, and the elastic clamping sleeve 60 has an axial force on the first clamping member 10 and the second clamping member 20 to prevent loosening. In addition, it can absorb vibrations, have a buffering effect, and improve the locking effect.

[0060] The following is a detailed description of the installation and removal process of the fixing assembly of the present invention in combination with specific application scenarios:

[0061] like Fig. 9 The embodiment shown in the figure discloses a roof structure for photovoltaic power generation, which belongs to an application scenario of a fixed component. In this embodiment, the attachment 70 is a color steel tile on the roof. In this application scenario, the roof structure includes: a roof, a color steel tile, a photovoltaic component and the above-mentioned fixed component, and the photovoltaic component is connected to the color steel tile on the roof through the fixed component. Fig. 9 As shown, a mounting groove 71 is provided on the color steel tile, an inner protrusion 72 is formed on the groove wall at the groove position of the mounting groove 71, and the first clamping member 10 and the second clamping member 20 are clamped on the upper and lower sides of the inner protrusion 72, thereby achieving a fixed connection with the color steel tile.

[0062] During assembly, first place the lower portion of the fixing assembly (i.e., the second clamping member 20) into the mounting groove 71, and then rotate the bolt 40 along the second rotation direction. The bolt 40 drives the second clamping member 20 to rotate. Since the length of the second clamping member 20 is not less than the width of the mounting groove 71 ( Fig. 9 The left and right directions are the width directions of the mounting groove 71, so during the rotation of the second clamping member 20, the second clamping member 20 is Fig. 9The end surfaces at the left and right ends of the inner protrusion 72 will abut against the groove wall of the installation groove 71, thereby preventing further rotation. At this time, the bolt 40 is continuously rotated in the second rotation direction to continuously reduce the distance between the first clamping member 10 and the second clamping member 20, compressing the elastic limit sleeve 60. Then, under the continuous rotation of the bolt 40, the first clamping member 10 and the second clamping member 20 are clamped on the upper and lower sides of the inner protrusion 72 and clamped and fixed. At the same time, the second clamping member 20 is Fig. 9 The left and right ends also push against the side walls of the mounting groove 71 and deform, thereby clamping the second clamping member 20 between the groove walls of the mounting groove 71, forming not only an axial clamping limit, but also a horizontal clamping limit, thereby locking and fixing the fixing component to the color steel tile.

[0063] When disassembly is required, the bolt 40 needs to be rotated along the first rotation direction, that is, the direction opposite to the second rotation direction, to release the locking state of the fixing assembly.

[0064] During the process of rotating the bolt 40 in the first rotation direction, due to the abutment deformation between the second clamping member 20 and the side of the mounting groove 71, the second clamping member 20 does not rotate in the same direction as the bolt 40, and only the bolt 40 rotates alone. Fig. 9 The bolt 40 moves upward in the middle of the mounting groove 71, so that the axial force of the nut 41 on the first clamping member 10 is reduced, thereby reducing the clamping force between the first clamping member 10 and the second clamping member 20. As the bolt 40 continues to rise, the nut 41 gradually disengages from the first clamping member 10, and the clamping force between the first clamping member 10 and the second clamping member 20 disappears. However, since the second clamping member 20 and the groove wall of the installation groove 71 are still in a clamping state, the position of the second clamping member 20 remains fixed. As the bolt 40 continues to rotate along the first rotation direction, the bolt 40 continues to rise, and the limit member 50 fixedly connected to the bolt 40 also rotates synchronously with the bolt 40 and its position is raised. When the limit member 50 is lifted to the first position, the first limit portion 51 contacts the second limit portion 22 to form a pawl limit, and the limit member 50 drives the second clamping member 20 to rotate along the first rotation direction. The second clamping member 20 is disengaged from the state of being clamped with the groove wall of the mounting groove 71 by rotation. After disengagement, the bolt 40 can move up and down freely. The length direction of the second clamping member 20 is adjusted to be consistent with the length direction of the groove opening of the mounting groove 71, and the fixing component can be taken out. Compared with the prior art, the dismantling efficiency is significantly improved.

[0065] It should be noted that in order to improve the reliability of the connection between the fixed component and the color steel tile, the position where the first clamping member 10 contacts the inner wall of the mounting groove 71 can be set as a rounded corner to increase the contact area, thereby increasing the tightness of the clamping and further improving the firmness of the connection between the fixed component and the color steel tile.

[0066] In the above embodiment, the attachment 70 is a colored steel tile on the roof, but this is not restrictive. Fig.10 In another embodiment shown in FIG. 9 , a roof structure for photovoltaic power generation is disclosed, showing another application scenario of the fixing assembly. Its structure is basically the same as that of the embodiment shown in FIG. 9 , except that in this other embodiment, the attachment 70 is a purlin on the roof. The photovoltaic assembly is connected to the purlin on the roof through the fixing assembly. Fig.10 As shown, a mounting groove 71 is formed inside the purlin, and the notch position of the mounting groove 71 forms an inner folding edge 73 inwardly, and the first clamping member 10 and the second clamping member 20 are clamped on the upper and lower sides of the inner folding edge 73, thereby achieving a fixed connection with the purlin.

[0067] During assembly, first place the second clamping member 20 into the mounting groove 71, and then rotate the second clamping member 20 along the second rotation direction. Since the length of the second clamping member 20 is not less than the width of the mounting groove 71 ( Fig.10 The left and right directions are the width directions of the mounting groove 71, so during the rotation of the second clamping member 20, the second clamping member 20 is Fig.10 The end surfaces at the left and right ends of the inner folding edge 73 will abut against the groove wall of the installation groove 71, so that it cannot continue to rotate. At this time, the bolt 40 is rotated in the second rotation direction to continuously reduce the distance between the first clamping member 10 and the second clamping member 20, compressing the elastic limit sleeve 60. Then, under the continuous rotation of the bolt 40, the first clamping member 10 and the second clamping member 20 are clamped on the upper and lower sides of the inner folding edge 73 and clamped and fixed. At the same time, the second clamping member 20 is Fig.10 The left and right ends of the mounting groove 71 also push against the side walls to deform, thereby clamping the second clamping member 20 between the groove walls of the mounting groove 71, forming not only an axial clamping limit, but also a horizontal clamping limit, thereby locking and fixing the fixing assembly to the purlin.

[0068] When disassembly is required, the bolt 40 needs to be rotated along the first rotation direction, that is, the direction opposite to the second rotation direction, to release the locking state of the fixing assembly.

[0069] During the process of rotating the bolt 40 in the first rotation direction, due to the existence of the clamping force, the second clamping member 20 does not rotate in the same direction as the bolt 40, and only the bolt 40 rotates alone. Fig.10The bolt 40 moves upward in the middle of the mounting groove 71, so that the axial force of the nut 41 on the first clamping member 10 is reduced, thereby reducing the clamping force between the first clamping member 10 and the second clamping member 20. As the bolt 40 continues to rise, the nut 41 gradually disengages from the first clamping member 10, and the clamping force between the first clamping member 10 and the second clamping member 20 disappears. However, since the second clamping member 20 and the groove wall of the installation groove 71 are still in a clamping state, the position of the second clamping member 20 remains fixed. As the bolt 40 continues to rotate along the first rotation direction, the bolt 40 continues to rise, and the limit member 50 fixedly connected to the bolt 40 also rotates synchronously with the bolt 40 and its position is raised. When the limit member 50 is lifted to the first position, the first limit portion 51 contacts the second limit portion 22 to form a pawl limit, and the limit member 50 drives the second clamping member 20 to rotate along the first rotation direction. The second clamping member 20 is disengaged from the state of being clamped with the groove wall of the mounting groove 71 by rotation. After disengagement, the bolt 40 can move up and down freely. The length direction of the second clamping member 20 is adjusted to be consistent with the length direction of the groove opening of the mounting groove 71, and the fixing component can be taken out. Compared with the prior art, the dismantling efficiency is significantly improved.

[0070] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A fixing assembly, characterized in that: include: A first clamping member (10); a second clamping member (20) arranged at a distance from the first clamping member (10), wherein a clamping space (30) is formed between the second clamping member (20) and the first clamping member (10); A bolt (40) is movably disposed on the first clamping member (10) and the second clamping member (20), and a first end of the bolt (40) has a nut (41); A limiting member (50) is connected to the second end of the bolt (40), and a limiting space is formed between the nut (41) and the limiting member (50) to limit the first clamping member (10) and the second clamping member (20) in the limiting space from being separated from the bolt (40).

2. The fixing assembly according to claim 1, characterized in that: The second clamping member (20) is located between the limiting member (50) and the first clamping member (10); The second clamping member (20) has a screw hole (21), and the bolt (40) is rotatably arranged in the screw hole (21). The bolt (40) rotates to move the second clamping member (20) and the limiting member (50) closer to or farther from each other, so as to expand or reduce the clamping space (30).

3. The fixing assembly according to claim 2, characterized in that: In the first rotation direction of the bolt (40), the limiting member (50) moves toward the second clamping member (20) while synchronously rotating with the bolt (40), and the limiting member (50) has a first position abutting against the second clamping member (20); When the limiting member (50) is in the first position, the limiting member (50) rotates synchronously with the bolt (40) and drives the second clamping member (20) to rotate in the same direction.

4. The fixing assembly according to claim 3, characterized in that: The limiting member (50) is fixedly connected to the bolt (40), the limiting member (50) is provided with a first limiting portion (51), and the second clamping member (20) is provided with a second limiting portion (22) matching the first limiting portion (51); In the first position of the second clamping member (20), the first limiting portion (51) and the second limiting portion (22) are limitedly matched, so that the bolt (40) drives the second clamping member (20) to rotate in the same direction through the limiting member (50).

5. The fixing assembly according to claim 4, characterized in that: The first limiting portion (51) is a ratchet structure, and the second limiting portion (22) is a convex strip.

6. The fixing assembly according to claim 5, characterized in that: The ratchet structure comprises a plurality of ratchets (511) arranged along a first rotation direction of the bolt (40), each of the ratchet teeth (511) having a limiting end surface (512), and the limiting end surface (512) only cooperates with the convex strip in the first rotation direction to drive the second clamping member (20) to rotate in the same direction.

7. The fixing assembly according to claim 5, characterized in that: The limiting member (50) is a flange nut, and the limiting member (50) and the bolt (40) are fixed by riveting.

8. The fixing assembly according to claim 2, characterized in that: The fixing assembly also includes: An elastic limiting sleeve (60) is sleeved on the bolt (40), and the elastic limiting sleeve (60) is located between the first clamping member (10) and the second clamping member (20) to limit a preset distance between the first clamping member (10) and the second clamping member (20).

9. The fixing assembly according to claim 8, characterized in that: The fixing assembly has a locking state for clamping on an attachment (70); In the locked state of the fixing assembly, the axial distance between the first clamping member (10) and the second clamping member (20) is D, the length of the elastic limiting sleeve (60) is L, and the relationship between L and D satisfies: 0.1mm≤LD≤3mm.

10. A roof structure for photovoltaic power generation, characterized in that: include: An attachment (70) for being arranged on a roof; Photovoltaic panels; According to the fixing assembly according to any one of claims 1 to 9, the photovoltaic assembly is connected to the attachment (70) via the fixing assembly.

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