Anti-loosening mechanism of metal roof light building integrated photovoltaics (BIPV) and construction method of anti-loosening mechanism

Abstract

The invention provides an anti-loosening mechanism of a light building integrated photovoltaics (BIPV) of a metal roof and a construction method of the anti-loosening mechanism. The anti-loosening mechanism of the light BIPV of the metal roof comprises a mounting assembly and a photovoltaic assembly, wherein the mounting assembly is mounted on the roof through an anti-loosening assembly, and the photovoltaic assembly is laid on the mounting assembly. The anti-loosening assembly comprises a support and two fixing structures, and the two ends of the fixing structures penetrate through the roof and the support correspondingly so that the support can be installed on the roof. The fixing structure comprises a threaded rod, a limiting part fixedly arranged at one end of the threaded rod, a connecting part connected to the limiting part, a movable part rotationally connected to the connecting part and an adjusting piece installed on the threaded rod, and the adjusting piece is used for adjusting the position of the support installed on the threaded rod. And the installation effect of the photovoltaic module is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaics, and specifically relates to an anti-loosening mechanism for a lightweight BIPV metal roof and a construction method thereof. Background Art

[0002] With the development of the photovoltaic industry and the promotion of green building policies, there are more and more cases of building integrated photovoltaics (BIPV). Color steel tile photovoltaic modules are widely used on industrial and commercial roofs. Their structure includes color steel tiles, photovoltaic modules and corresponding structural parts.

[0003] In the prior art, conventional photovoltaic modules are usually installed on brackets by means of clamps, and the brackets are then fixed to the roof by bolts to complete the installation of the photovoltaic modules on the roof. However, the existing brackets can only be fixed to the roof by bolts, so that the height of the brackets cannot be adjusted. If the roof is uneven, the installation surface formed by all brackets will also be uneven, thereby affecting the installation of the photovoltaic modules. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a metal roof lightweight BIPV anti-loosening mechanism and a construction method thereof, which are used to solve the technical problems of the above background technology.

[0005] On the one hand, the invention provides the following technical solutions: a metal roof lightweight BIPV anti-loosening mechanism, comprising a mounting assembly installed on the roof through an anti-loosening assembly and a photovoltaic assembly laid on the mounting assembly; The anti-loosening assembly includes a bracket and two fixing structures, the two ends of the fixing structure respectively pass through the roof and the bracket to install the bracket on the roof, the fixing structure includes a threaded rod, a limiting portion fixed to one end of the threaded rod, a connecting portion connected to the limiting portion, a movable portion rotatably connected to the connecting portion, and an adjusting member installed on the threaded rod, and the adjusting member is used to adjust the position of the bracket installed on the threaded rod.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: by rotating the movable part, the movable part is made to rotate upward around the connecting part. When the movable part overlaps with the threaded rod, one end of the threaded rod overlapped with the movable part passes through the hole of the roof in turn, so that the movable part completely exceeds the supporting beam of the roof until it is at the lower part of the supporting beam. At this time, the movable part begins to rotate in the opposite direction around the connecting part by its own gravity, so that the cross-sectional size of the movable part is larger than the size of the hole, preventing the movable part from moving back from the hole; then the threaded rod is lifted upward so that the top of the movable part abuts against the bottom of the roof to generate resistance to the movable part, and the elastic adjusting component is tightened on the threaded rod by a tool so that the bottom of the elastic adjusting component squeezes the top of the roof and the top of the movable part squeezes the bottom of the roof. At this time, the threaded rod is fixed to the roof, and a bolt rod is fixed to the roof again in the same way; then the height of the elastic adjusting component is squeezed, and when the elastic adjusting component After the top reaches the appropriate height, the two ends of the bracket are respectively inserted into the two threaded rods, and the bracket is supported on the elastic adjustment component of the threaded rod, and then the fixing component is tightened on the threaded rod so that the bracket is fixed to the threaded rod by the fixing component and the elastic component, thereby completing the installation of the bracket height adjustment. It can be seen that the fixing structure runs through the entire roof, and then the bracket is fixed on the roof. Compared with the existing fixing method of the clamp, it prevents the bracket from detaching and improves the connection stability of the color steel tile photovoltaic module. In addition, through the cooperation of the threaded rod and the movable part, the threaded rod only needs to be fixed on one side of the roof to complete the effect of fixing the roof, so that the bracket only needs to be fastened on one side of the roof, realizing a one-way riveting product with infinite thickness, which improves the convenience of work. In addition, through the cooperation of the elastic adjustment component and the fixing component of the adjusting piece, the height of the bracket on the threaded rod is adjusted, so that the installation surface formed by all brackets is relatively flat, thereby improving the installation effect of the photovoltaic module.

[0007] Furthermore, a limiting groove and a connecting groove are provided on one side of the connecting part, the limiting groove is connected with the connecting groove, and the connecting groove runs through the other side of the connecting part, the limiting groove is adapted to the limiting part, the connecting groove is adapted to the connecting rod, and the size of the limiting groove is larger than the size of the connecting groove, so that the limiting groove and the connecting groove form a step.

[0008] Furthermore, the depth ratio of the limiting groove to the connecting groove is in the range of 3:(4-9), and the ratio of the diameter of the limiting groove, the diameter of the connecting groove and the height of the connecting portion is in the range of (6-8):(4-7):11.

[0009] Furthermore, the adjusting member includes an elastic adjusting component and a fixing component which are sequentially arranged on the threaded rod from close to the limiting portion to away from the limiting portion, and the fixing component and the elastic adjusting component are respectively arranged on both sides of the bracket, and the bottom of the elastic adjusting component is supported on the roof so that the threaded rod is fixed to the roof.

[0010] Furthermore, the adjusting component includes an elastic part connected to the threaded rod and two fixing caps, and the two fixing caps are arranged at both ends of the elastic part to limit the elastic part, wherein the fixing cap includes a first fixing nut and a protective cover extending from one side of the first fixing nut close to the elastic part.

[0011] Furthermore, the fixing component includes a second fixing nut, a reinforcement gasket and a third fixing nut which are sequentially arranged on the threaded rod, the second fixing nut and a fixing cap thereof install the bracket on the threaded rod, and the third fixing nut limits the reinforcement gasket on the second fixing nut.

[0012] Further, the top annular array of the second fixing nut has at least two reinforcement grooves, and the bottom annular array of the reinforcement gasket extends with at least two reinforcement parts, and the reinforcement parts are adapted to the reinforcement grooves to reinforce the second fixing nut; The sizes of the reinforcement portion and the reinforcement groove decrease from top to bottom.

[0013] Furthermore, the mounting assembly includes a first support member, a second support member and a third support member which are arranged in sequence from bottom to top, the crest section of the first support member and the top of the bracket are supported on the second support member to form a first flow cavity between the first support member and the second support member, the trough of the third support member is installed on the second support member, and the crest of the third support member is installed on the photovoltaic component to form a second flow cavity between the photovoltaic component and the third support member.

[0014] Furthermore, a deformation groove is provided at the other end of the threaded rod, and a fixed wedge is arranged in the deformation groove to cause the other end of the threaded rod to deform, wherein the deformation groove runs through both sides of the threaded rod, the depth of the deformation groove is less than one fifth of the overall length of the threaded rod, and a pin is provided at the other end of the threaded rod.

[0015] On the other hand, the present invention also proposes a construction method for a metal roof lightweight BIPV anti-loosening mechanism, the construction method comprising the following steps: Punching holes in the roof at intervals so that the holes penetrate the roof; Provide an anti-loosening assembly, rotate the movable part of the anti-loosening assembly so that the movable part overlaps with the threaded rod, and pass one end of the threaded rod overlapping with the movable part through the hole of the roof. When the movable part completely passes through the roof, the movable part is reset and rotated in the opposite direction; Install the waterproof component, the elastic adjustment component, the bracket and the fixing component on the threaded rod in sequence through the other end of the threaded rod, and block the hole with the waterproof component; The elastic adjustment component and the fixing component are driven to rotate by a tool, so that the top of the bracket on the threaded rod is flush with the crest of the first support member on the roof, and the top of the movable part and the bottom of the elastic adjustment component are pressed against the two ends of the roof respectively, so that the bracket is fixed on the roof; The second support member is installed on the crest of the first support member and the bracket, the third support member is installed on the second support member, and the photovoltaic components are laid on the third support member. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the anti-loosening mechanism of the metal roof lightweight BIPV in the first embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the anti-loosening assembly according to the first embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing structure of the first embodiment of the present invention.

[0019] Figure 4 The first embodiment of the present invention Figure 3 Schematic diagram of the structure when the middle movable part and the threaded rod are in overlap condition.

[0020] Figure 5 It is an exploded view of the fixing structure of the first embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the movable part of the first embodiment of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the elastic adjustment component according to the first embodiment of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing component according to the first embodiment of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing component of the first embodiment of the present invention from another viewing angle.

[0025] Fig.10 The first embodiment of the present invention Figure 1 Schematic diagram of the three-dimensional structure when the reset part is disassembled.

[0026] Fig.11 It is a schematic diagram of detection data of the fixing structure of the first embodiment of the present invention.

[0027] Fig.12 This is a flow chart of the construction method of the anti-loosening mechanism of the lightweight BIPV metal roof in the second embodiment of the present invention.

[0028] Explanation of the main component symbols: 10, mounting assembly; 11, first support member; 12, second support member; 13, third support member; 131, accommodating groove; 14, first flow cavity; 15, second flow cavity; 20, photovoltaic module; 30, bracket; 40, fixing structure; 41, threaded rod; 411, deformation groove; 412, fixing wedge; 413, latch; 42, limiting part; 43, connecting part; 431, limiting groove; 432, connecting groove; 44, movable part; 441, reset part; 4411, pin; 4412 , straight plate; 4413, inclined plate; 442, jack; 45, adjusting piece; 451, elastic adjusting component; 4511, elastic part; 4512, fixing cap; 45121, first fixing nut; 45122, protective cover; 452, fixing component; 4521, second fixing nut; 45211, reinforcement groove; 4522, reinforcement gasket; 45221, reinforcement part; 4523, third fixing nut; 46, wedge-shaped gasket; 47, waterproof component; 50, roof; 51, support beam; 52, frame; 53, insulation layer.

[0029] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] Embodiment 1 See also Figures 1 to 5 As shown, the anti-loosening mechanism of the lightweight BIPV on the metal roof in the first embodiment of the present invention is shown, the installation component 10 installed on the roof 50 through the anti-loosening component and the photovoltaic component 20 laid on the installation component 10; Among them, the anti-loosening component includes a bracket 30 and two fixed structures 40, and the two ends of the fixed structure 40 respectively pass through the roof 50 and the bracket 30 to install the bracket 30 on the roof 50. The fixed structure 40 includes a threaded rod 41, a limiting portion 42 fixed to one end of the threaded rod 41, a connecting portion 43 connected to the limiting portion 42, a movable portion 44 rotatably connected to the connecting portion 43, and an adjusting member 45 installed on the threaded rod 41. The adjusting member 45 is used to adjust the position of the bracket 30 installed on the threaded rod 41.

[0034] In this embodiment, the roof 50 includes a support beam 51, a frame 52, and an insulation layer 53. The top of the movable portion 44 is provided with a reverse lock pattern so that the movable portion 44 and the bottom of the roof 50 generate a limiting friction force. Optionally, the cross section of the limiting portion 42 can be polygonal or circular. The bottom of the limiting portion 42 is provided with a rotation groove, which can be used for screwdriver operation.

[0035] In specific implementation, the movable part 44 is rotated so that the movable part 44 rotates upward around the connecting part 43. When the movable part 44 overlaps with the threaded rod 41, one end of the threaded rod 41 that overlaps with the movable part 44 passes through the holes on the insulation layer 53, the frame 52 and the support beam 51 in sequence, so that the movable part 44 completely exceeds the support beam 51 until it is at the bottom of the support beam 51. At this time, the movable part 44 starts to rotate in the opposite direction around the connecting part 43 by its own gravity, so that the cross-sectional size of the movable part 44 is larger than the size of the hole, preventing the movable part 44 from moving back through the hole. Then, the threaded rod 41 is lifted upward to make the top of the movable part 44 abut against the bottom of the roof 50 to generate resistance to the movable part 44, and the elastic adjustment component 451 is tightened on the threaded rod 41 by using a tool so that the bottom of the elastic adjustment component 451 presses the top of the roof 50, and the top of the movable part 44 presses the bottom of the roof 50. At this time, the threaded rod 41 is fixed to the roof 50. In the same way, a bolt rod is fixed to the roof 50 again; then, the height of the elastic adjustment component 451 is squeezed, and when the top of the elastic adjustment component 451 reaches After the appropriate height is reached, the two ends of the bracket 30 are respectively inserted into the two threaded rods 41, and the bracket 30 is supported on the elastic adjustment component 451 of the threaded rod 41, and then the fixing component 452 is tightened on the threaded rod 41, so that the bracket 30 is fixed to the threaded rod 41 by the fixing component 452 and the elastic part 4511, thereby completing the installation of the height adjustment of the bracket 30. It can be seen that the fixing structure 40 passes through the entire roof 50, and then the bracket 30 is fixed on the roof 50. Compared with the existing clamp fixing method, it prevents the bracket 30 from detaching and improves the color steel tile photovoltaic The connection stability of the component 20 is improved. In addition, through the cooperation of the threaded rod 41 and the movable part 44, the threaded rod 41 can be fixed to the roof 50 only on one side of the roof 50, so that the bracket 30 only needs to be fastened on one side of the roof 50, and a one-way riveted product with infinite thickness is realized, which improves the convenience of work. In addition, through the cooperation of the elastic adjustment component 451 and the fixing component 452 of the adjustment member 45, the height of the bracket 30 on the threaded rod 41 is adjusted, so that the installation surface formed by all the brackets 30 is relatively flat, thereby improving the installation effect of the photovoltaic component 20.

[0036] See also Figure 6As shown, specifically, a limiting groove 431 and a connecting groove 432 are provided on one side of the connecting portion 43, the limiting groove 431 is connected with the connecting groove 432, and the connecting groove 432 runs through the other side of the connecting portion 43, the limiting groove 431 is matched with the limiting portion 42, the connecting groove 432 is matched with the connecting rod, and the size of the limiting groove 431 is larger than the size of the connecting groove 432, so that the limiting groove 431 and the connecting groove 432 form a step. The size of the movable portion 44 is larger than the size of the connecting portion 43. It is worth noting that by forming a step, the pulling force at the bottom of the threaded rod 41 can be effectively improved, thereby improving the connection firmness of the threaded rod 41 and the roof 50, and can also effectively prevent the connecting portion 43 and the movable portion 44 from being separated from the threaded rod 41 during the construction process.

[0037] More specifically, the depth ratio of the limiting groove 431 to the connecting groove 432 is in the range of 3:(4~9), and the ratio of the diameter of the limiting groove 431, the diameter of the connecting groove 432 and the height of the connecting portion 43 is in the range of (6~8):(4~7):11. In this embodiment, the depth ratio of the limiting groove 431 to the connecting groove 432 is 3:7, the depth of the limiting groove 431 is 3mm, the depth of the connecting groove 432 is 7mm, the connecting portion 43 is cylindrical, and the ratio of the diameter of the limiting groove 431, the diameter of the connecting groove 432 and the height of the connecting portion 43 is 7.1:5.7:11, that is, the diameter of the limiting groove 431 and the diameter of the connecting groove 432 are 7.1 mm and 5.7 mm respectively, and the height of the connecting portion 43 is 11 mm. The above-mentioned size setting effectively improves the pull-out force of the bottom structure of the threaded rod 41, and its pull-out force reaches 12KN. In order to prove its pull-out force, the fixed structure 40 was sent to "Hebei Zhongji Testing Technology Co., Ltd., Hebei Province Fastener Product Quality Supervision and Inspection Center for testing". The test data are as follows Fig.11 .

[0038] See also Figures 7 and 8 As shown, specifically, the adjusting member 45 includes an elastic adjusting component 451 and a fixing component 452 which are sequentially arranged on the threaded rod 41 from close to the limiting portion 42 to away from the limiting portion 42, and the fixing component 452 and the elastic adjusting component 451 are respectively arranged on both sides of the bracket 30, and the bottom of the elastic adjusting component 451 is supported on the roof 50 so that the threaded rod 41 is fixed to the roof 50.

[0039] More specifically, the adjustment component includes an elastic portion 4511 and two fixing caps 4512 connected to the threaded rod 41, and the two fixing caps 4512 are arranged at both ends of the elastic portion 4511 to limit the elastic portion 4511, wherein the fixing cap 4512 includes a first fixing nut 45121 and a protective cover 45122 extending from one side of the first fixing nut 45121 close to the elastic portion 4511. In this embodiment, the elastic portion 4511 is a reinforcing spring, which is sleeved on the threaded rod 41, and its two ends are respectively in contact with the two fixing caps 4512, and the thickness of the first fixing nut 45121 is greater than the thickness of the M6 ​​nut, so as to increase the contact area between the nut and the threaded rod 41, so that its strength reaches the strength of the M10 nut. It is worth noting that the setting of the protective cover 45122 can effectively limit the elastic portion 4511 between the two fixing caps 4512. In addition, by setting the elastic part 4511, on the one hand, the distance between the two fixing caps 4512 can be adjusted, and on the other hand, the two fixing caps 4512 and the elastic part 4511 are integrated to enhance the structural force and make the bracket 30 more stable after installation. In actual use, in order to help waterproof the roof 50, the hole for installing the threaded rod 41 is as small as possible, so the thickness of the first fixing nut 45121 is selected to be greater than the thickness of the M6 ​​nut.

[0040] More specifically, the fixing member 452 includes a second fixing nut 4521, a reinforcement washer 4522, and a third fixing nut 4523 which are sequentially arranged on the threaded rod 41. The second fixing nut 4521 and the fixing cap 4512 thereof install the bracket 30 on the threaded rod 41, and the third fixing nut 4523 is used to limit the reinforcement washer 4522 on the second fixing nut 4521. Through the cooperation of the second fixing nut 4521, the reinforcement washer 4522, and the third fixing nut 4523, the bracket 30 is stably limited on the threaded rod 41.

[0041] Specifically, the top annular array of the second fixing nut 4521 has at least two reinforcement grooves 45211, and the bottom annular array of the reinforcement gasket 4522 extends with at least two reinforcement parts 45221, and the reinforcement parts 45221 are adapted to the reinforcement grooves 45211 to reinforce the second fixing nut 4521, and the sizes of the reinforcement parts 45221 and the reinforcement grooves 45211 decrease from top to bottom. In this embodiment, the number of reinforcement parts 45221 and reinforcement grooves 45211 is three, and the reinforcement gasket 4522 and the reinforcement parts 45221 are made of rubber. During the specific application process, the reinforcement part 45221 is inserted into the reinforcement groove 45211, and the third fixing nut 4523 is tightened so that the third fixing nut 4523 squeezes the reinforcement part 45221 of the reinforcement gasket 4522 to limit it to the limiting groove 431, wherein the size of the reinforcement part 45221 is larger than the size of the reinforcement groove 45211, so after the reinforcement part 45221 is inserted into the reinforcement groove 45211, the reinforcement part 45221 is squeezed and deformed, and the deformed reinforcement part 45221 is partially squeezed between the gap between the threaded rod 41 and the second fixing nut 4521, thereby improving the stability of the second fixing nut 4521 on the threaded rod 41.

[0042] In order to further improve the stability of the fixing component 452 on the threaded rod 41, a deformation groove 411 is opened at the other end of the threaded rod 41, and a fixing wedge 412 is arranged in the deformation groove 411 to cause the other end of the threaded rod 41 to deform, wherein the deformation groove 411 runs through both sides of the threaded rod 41, and the depth of the deformation groove 411 is less than one fifth of the overall length of the threaded rod 41, and a pin 413 is arranged at the other end of the threaded rod 41, which is respectively inserted into the end of the threaded rod 41 and the fixing wedge 412 through the pin 413 to fix the fixing wedge 412 to the bottom of the threaded rod 41.

[0043] It can be understood that the first fixing cap 4512, the elastic part 4511, the second fixing cap 4512, the bracket 30, the second fixing nut 4521 and the third fixing nut 4523 are sequentially arranged on the threaded rod 41, so that the above-mentioned multiple structures form a whole, which can effectively make the threaded rod 41 more stably limited to the roof 50, and can effectively make the bracket 30 more stably limited to the threaded rod 41, so that the installed photovoltaic assembly 20 is more stable.

[0044] Specifically, the mounting assembly 10 includes a first support member 11, a second support member 12 and a third support member 13 which are arranged in sequence from bottom to top, the crest section of the first support member 11 and the top of the bracket 30 are supported on the second support member 12, so that a first flow cavity 14 is formed between the first support member 11 and the second support member 12, the trough of the third support member 13 is installed on the second support member 12, and the crest of the third support member 13 is installed on the photovoltaic component 20, so that the photovoltaic component 20 and the third support member 13 form a second flow cavity 15.

[0045] In this embodiment, the first support member 11 and the third support member 13 are any one of T-shaped color steel tiles, corner color steel tiles, upright lock-edge color steel tiles, wave-shaped color steel tiles, 360-degree bite-type color steel tiles, concealed button color steel tiles, bite-edge color steel tiles or colored metal corrugated tiles. Among them, the first flow cavity 14 and the second flow cavity 15 formed can effectively dissipate heat for photovoltaics. The second support member 12 is a flat iron. In specific implementation, the first support member 11 is fixed to the roof 50 by the elastic adjustment component 451, the second support member 12 is riveted to the bracket 30 by rivets, and the third support member 13 is riveted to the second support member 12 by rivets. Among them, the top of the wave crest of the third support member 13 is provided with a accommodating groove 131 for accommodating the fixing glue to install the photovoltaic group.

[0046] In an optional embodiment, the first support member 11 is a part of the existing roof 50 , that is, when the bracket is installed, the existing roof already has the first support member 11 , and there is no need to install the first support member 11 .

[0047] Furthermore, in order to improve the waterproof effect after drilling, the threaded rod 41 is provided with a waterproof component 47, which includes a composite waterproof gasket and a rubber plug gasket respectively sleeved on the threaded rod 41 in sequence, the cross section of the rubber plug gasket is T-shaped, and the bottom of the rubber plug gasket is provided with a limited position thread. During the specific installation, a plurality of wedge-shaped gaskets 46 are also sleeved on the threaded rod 41.

[0048] In this embodiment, the movable portion 44 includes a bottom plate, side plates bent at both sides of the bottom plate, and reverse locking patterns arranged on the tops of the side plates, so that the side plates are limited to the bottom of the roof 50 .

[0049] See also Figures 9 and 10The bottom plate of the movable part 44 is detachably connected with a reset part 441, and the reset part 441 includes a straight plate 4412, one end of the straight plate 4412 is bent upward with an inclined plate 4413, and the bottom of the straight plate 4412 is bent downward with a plug pin 4411. The bottom plate of the movable part 44 is provided with a plug hole 442, and the plug hole 442 is adapted to the plug pin 4411. In this embodiment, the angle formed by the straight plate 4412 and the inclined plate 4413 is an acute angle. Among them, the plug pin 4411 is formed by cutting two plug pins 4411 from the middle of the straight plate 4412 and then bending them.

[0050] In an optional embodiment, in the above description, the movable part 44 begins to rotate in the opposite direction around the connecting part 43 by its own gravity, and the reset part 441 is designed so that the movable part 44 can directly move in the opposite direction by the reset force of the reset part 441. In specific application, when the movable part 44 overlaps with the threaded rod 41, the threaded rod 41 squeezes the reset part to deform, and when the movable part 44 completely passes through the hole of the support beam 51, the reset force of the reset part 441 causes the movable part 44 to begin to rotate in the opposite direction around the connecting part 43.

[0051] In this embodiment, the cross-section of the bracket 30 is in a "J"-shaped structure, with first through holes at both ends of the "J"-shaped structure and a second through hole at the top of the "J"-shaped structure, and the second through hole can be used to install expansion bolts or fixing bolts.

[0052] Embodiment 2 See also Fig.12 , shown is a construction method of a metal roof lightweight BIPV anti-loosening mechanism in the second embodiment of the present invention, the method comprising the following steps: step S01 to step S05; S01, drilling holes in the roof at intervals so that the holes penetrate the roof; Specifically, when the existing roof has colored steel tiles (first support members), holes are punched in pairs on the roof and the trough sections corresponding to the colored steel tiles, so that the holes penetrate the support beams, the skeleton and the insulation layer, wherein the number of holes is arranged in groups of two, and the two holes in a group correspond to the two first through holes of the bracket. When laying colored steel tiles, the colored steel tiles are installed in an overlapping manner, and the first double-sided waterproof tape is laid on the crest of the overlapping area of ​​the two colored steel tiles, and the second waterproof tape with waterproof and adhesive properties is laid on the overlapping area of ​​the trough, forming a double-track waterproof barrier in the overlapping area to reduce the risk of water leakage.

[0053] S02, providing an anti-loosening assembly, rotating the movable part of the anti-loosening assembly so that the movable part overlaps with the threaded rod, passing one end of the threaded rod overlapping with the movable part through the hole of the roof, and when the movable part completely passes through the roof, the movable part is reset and rotated in the opposite direction; Specifically, several anti-loosening components are provided. First, the movable part at one end of the threaded rod of the fixed structure of the anti-loosening component is rotated upward around the connecting part so that the movable part overlaps with the threaded rod, and then the end of the threaded rod overlapping with the movable part is passed through the hole of the roof until it completely passes through the roof. After completely passing through, the threaded rod is shaken up and down to make the movable part rotate in the opposite direction due to its own gravity, so that the size of the cross-section of the movable part is larger than the size of the hole, that is, the movable part overlapping with the threaded rod is slowly opened, and after it is opened to the point where the movable part cannot pass through the hole, the next step can be performed.

[0054] S03, installing the waterproof component, the elastic adjustment component, the bracket and the fixing component on the threaded rod in sequence through the other end of the threaded rod, and blocking the hole with the waterproof component; Specifically, the waterproof component is sleeved on the threaded rod so that the waterproof component is blocked in the holes of the first support member and the roof, and then the elastic adjustment component, the bracket and the fixing component are installed on the threaded rod in sequence.

[0055] S04, using a tool to drive the elastic adjustment component and the fixing component to rotate, so that the top of the bracket on the threaded rod is flush with the crest of the first support member on the roof, and the top of the movable part and the bottom of the elastic adjustment component are respectively pressed against the two ends of the roof, so that the bracket is fixed on the roof; Specifically, the threaded rod is lifted upward so that the top of the movable part abuts against the bottom of the roof to generate resistance to the movable part, and the elastic adjusting component is tightened on the threaded rod using a tool so that the bottom of the elastic adjusting component squeezes the top of the roof and the top of the movable part squeezes the bottom of the roof. At this time, the threaded rod is fixed to the roof, and a bolt rod is fixed to the roof again in the same way, and then the height of the elastic adjusting component is squeezed. When the top of the elastic adjusting component reaches a suitable height, the two ends of the bracket are respectively inserted into the two threaded rods, and the bracket is supported on the elastic adjusting component of the threaded rod, and then the fixing component is tightened on the threaded rod so that the bracket is fixed to the threaded rod by the fixing component and the elastic component, thereby completing the installation of the bracket height adjustment. At the same time, the top of the bracket after height adjustment is on the same plane as the top of the wave crest of the first support member.

[0056] S05, installing a second support member on the crest of the first support member and the bracket, installing a third support member on the second support member, and laying a photovoltaic module on the third support member.

[0057] Specifically, the flat iron (the second supporting member) is laid on the crest of the first supporting member and the bracket, and then the new color steel tile (the third supporting member) is laid on the bracket, and then the expansion bolts or rivets are passed through the crest of the new color steel tile, the flat iron and the bracket to fix the new color steel tile, the flat iron and the bracket together, and finally the photovoltaic module is laid on the new color steel tile, wherein a accommodating groove is opened on the top of the crest of the new color steel tile for accommodating fixing glue to install the photovoltaic module.

[0058] In summary, the anti-loosening mechanism and construction method of the lightweight BIPV of the metal roof in the above-mentioned embodiment of the present invention rotates the movable part so that the movable part rotates upward around the connecting part. When the movable part overlaps with the threaded rod, one end of the threaded rod that overlaps with the movable part passes through the holes on the insulation layer, the frame and the support beam in turn, so that the movable part completely exceeds the support beam until it is at the lower part of the support beam. At this time, the movable part begins to rotate in the opposite direction around the connecting part by its own gravity, so that the cross-sectional size of the movable part is larger than the size of the hole, preventing the movable part from moving back from the hole; then the threaded rod is lifted upward so that the top of the movable part abuts against the bottom of the roof to generate resistance to the movable part, and the elastic adjustment component is tightened on the threaded rod using a tool so that the bottom of the elastic adjustment component squeezes the top of the roof, and the top of the movable part squeezes the bottom of the roof. At this time, the threaded rod is fixed to the roof, and a bolt rod is fixed to the roof again in the same way; then the elastic adjustment component is squeezed Height, when the top of the elastic adjustment component reaches the appropriate height, the two ends of the bracket are respectively inserted into the two threaded rods, and the bracket is supported on the elastic adjustment component of the threaded rod, and then the fixing component is tightened on the threaded rod, so that the bracket is fixed to the threaded rod by the fixing component and the elastic component, thereby completing the installation of the bracket height adjustment. It can be seen that the fixing structure runs through the entire roof, and then the bracket is fixed on the roof. Compared with the existing clamp fixing method, it prevents the bracket from detaching and improves the connection stability of the color steel tile photovoltaic module. In addition, through the cooperation of the threaded rod and the movable part, the threaded rod only needs to be fixed on one side of the roof to complete the effect of fixing the roof, so that the bracket only needs to be fastened on one side of the roof, realizing a one-way riveting product with infinite thickness, which improves the convenience of work. In addition, through the cooperation of the elastic adjustment component and the fixing component of the adjusting piece, the height of the bracket on the threaded rod is adjusted, so that the installation surface formed by all brackets is relatively flat, thereby improving the installation effect of the photovoltaic module.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0060] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A metal roof lightweight BIPV anti-loosening mechanism, characterized in that: include: A mounting assembly installed on the roof through an anti-loosening assembly and a photovoltaic assembly laid on the mounting assembly; The anti-loosening assembly includes a bracket and two fixing structures, the two ends of the fixing structure respectively pass through the roof and the bracket to install the bracket on the roof, the fixing structure includes a threaded rod, a limiting portion fixed to one end of the threaded rod, a connecting portion connected to the limiting portion, a movable portion rotatably connected to the connecting portion, and an adjusting member installed on the threaded rod, and the adjusting member is used to adjust the position of the bracket installed on the threaded rod.

2. The anti-loosening mechanism of the lightweight BIPV metal roof according to claim 1 is characterized in that: A limiting groove and a connecting groove are provided on one side of the connecting part, the limiting groove is connected with the connecting groove, and the connecting groove runs through the other side of the connecting part, the limiting groove is adapted to the limiting part, the connecting groove is adapted to the connecting rod, and the size of the limiting groove is larger than the size of the connecting groove, so that the limiting groove and the connecting groove form a step.

3. The anti-loosening mechanism of the metal roof lightweight BIPV according to claim 2 is characterized in that: The depth ratio of the limiting groove to the connecting groove is in the range of 3:(4-9), and the ratio of the diameter of the limiting groove, the diameter of the connecting groove and the height of the connecting portion is in the range of (6-8):(4-7):

11.

4. The anti-loosening mechanism of the metal roof lightweight BIPV according to claim 1 is characterized in that: The adjusting member includes an elastic adjusting component and a fixing component which are sequentially arranged on the threaded rod from close to the limiting portion to away from the limiting portion, and the fixing component and the elastic adjusting component are respectively arranged on both sides of the bracket, and the bottom of the elastic adjusting component is supported on the roof so that the threaded rod is fixed to the roof.

5. The anti-loosening mechanism of the metal roof lightweight BIPV according to claim 4 is characterized in that: The adjusting component includes an elastic part connected to the threaded rod and two fixing caps, wherein the two fixing caps are arranged at both ends of the elastic part to limit the elastic part, wherein the fixing cap includes a first fixing nut and a protective cover extending from one side of the first fixing nut close to the elastic part.

6. The anti-loosening mechanism of the lightweight BIPV metal roof according to claim 5, characterized in that: The fixing component includes a second fixing nut, a reinforcement gasket and a third fixing nut which are sequentially arranged on the threaded rod. The second fixing nut and a fixing cap thereof install the bracket on the threaded rod. The third fixing nut is used to limit the reinforcement gasket on the second fixing nut.

7. The anti-loosening mechanism of the lightweight BIPV metal roof according to claim 6 is characterized in that: The second fixing nut has at least two reinforcement grooves in the top annular array, and the reinforcement gasket has at least two reinforcement parts extending from the bottom annular array, and the reinforcement parts are adapted to the reinforcement grooves to reinforce the second fixing nut; The sizes of the reinforcement portion and the reinforcement groove decrease from top to bottom.

8. The anti-loosening mechanism of lightweight BIPV metal roof according to claim 1, characterized in that: The mounting assembly includes a first support member, a second support member and a third support member which are arranged in sequence from bottom to top, the crest section of the first support member and the top of the bracket are supported on the second support member to form a first flow cavity between the first support member and the second support member, the trough of the third support member is installed on the second support member, and the crest of the third support member is installed on the photovoltaic component to form a second flow cavity between the photovoltaic component and the third support member.

9. The anti-loosening mechanism of the metal roof lightweight BIPV according to claim 1, characterized in that: A deformation groove is formed at the other end of the threaded rod, and a fixed wedge is arranged in the deformation groove to cause the other end of the threaded rod to deform, wherein the deformation groove runs through both sides of the threaded rod, the depth of the deformation groove is less than one fifth of the overall length of the threaded rod, and a pin is arranged at the other end of the threaded rod.

10. A construction method for the anti-loosening mechanism of the metal roof lightweight BIPV according to claims 1 to 9, characterized in that: The method comprises the following steps: Punching holes in the roof at intervals so that the holes penetrate the roof; Provide an anti-loosening assembly, rotate the movable part of the anti-loosening assembly so that the movable part overlaps with the threaded rod, and pass one end of the threaded rod overlapping with the movable part through the hole of the roof. When the movable part completely passes through the roof, the movable part is reset and rotated in the opposite direction; Install the waterproof component, the elastic adjustment component, the bracket and the fixing component on the threaded rod in sequence through the other end of the threaded rod, and block the hole with the waterproof component; The elastic adjustment component and the fixing component are driven to rotate by a tool, so that the top of the bracket on the threaded rod is flush with the crest of the first support member on the roof, and the top of the movable part and the bottom of the elastic adjustment component are pressed against the two ends of the roof respectively, so that the bracket is fixed on the roof; The second support member is installed on the crest of the first support member and the bracket, the third support member is installed on the second support member, and the photovoltaic components are laid on the third support member.

Images