CN218091636U

CN218091636U - Wind-resistant clamp, wind-resistant clamp assembly, roof panel assembly and roof system

Info

Publication number: CN218091636U
Application number: CN202221039167.5U
Authority: CN
Inventors: 王超; 王政; 郭胜君; 王保强
Original assignee: Duowei Green Energy Technology Tianjin Co ltd; Duowei Union Group Co Ltd
Current assignee: Duowei Green Energy Technology Tianjin Co ltd; Duowei Union Group Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-12-20
Anticipated expiration: 2032-04-28

Abstract

The embodiment of the application discloses anti-wind presss from both sides, anti-wind presss from both sides subassembly, roof boarding subassembly and roofing system, wherein, anti-wind presss from both sides and includes: a first clip member; the clamping main body comprises a first force holding arm and a second force holding arm which are arranged at intervals, one of the inner side surface of the first force holding arm and the first clamping piece is provided with an installation groove, the other one of the inner side surface of the first force holding arm and the first clamping piece is provided with an installation bulge matched and inserted with the installation groove, at least part of the installation bulge protrudes out of the inner side surface of the first force holding arm, and the first force holding arm is also provided with a abdicating hole penetrating through the inner side surface and the outer side surface of the first force holding arm; and the pushing piece is arranged in the abdicating hole and can move relative to the abdicating hole from the direction of pointing to the second force holding arm from the first force holding arm so as to push and push the first clamping piece.

Description

Wind-resistant clamp, wind-resistant clamp assembly, roof panel assembly and roof system

Technical Field

The utility model relates to a roof boarding system technical field, in particular to wind-resistant presss from both sides, wind-resistant presss from both sides subassembly, roof boarding subassembly and roofing system.

Background

Roof boarding for improving waterproof performance adopts interlock formula or buckled connection form generally to pass through sliding support and bearing structure fixed. The meshing or buckling strength of the roof panel and the sliding support is the key of the wind resistance of the whole roof system, and in order to improve the connection strength of the position, a wind-resistant clamp is generally added at the meshing position or the buckling position in a high wind pressure area. The anti-wind of using at present presss from both sides and is the two formula, presss from both sides tightly through the top bolt to play the effect of protection interlock position or lock position, nevertheless press from both sides tight dynamics limitedly, anti-wind under strong wind effect presss from both sides, roof boarding, sliding support can produce relative displacement and deformation, the easy dropout condition that appears influences roofing system's security.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present application have been made in view of the above problems, and in order to provide a wind clip, a wind clip assembly, a roof panel assembly and a roofing system that solve the above problems, or at least partially solve the above problems.

To achieve the above object, the present application provides a wind clip comprising:

a first clip member;

the clamping main body comprises a first force holding arm and a second force holding arm which are arranged at intervals, one of the inner side surface of the first force holding arm and the first clamping piece is provided with an installation groove, the other one of the inner side surface of the first force holding arm and the first clamping piece is provided with an installation bulge matched and inserted with the installation groove, at least part of the installation bulge protrudes out of the inner side surface of the first force holding arm, and the first force holding arm is also provided with a abdicating hole penetrating through the inner side surface and the outer side surface of the first force holding arm; and the number of the first and second groups,

the pushing piece is arranged in the yielding hole and can move relative to the yielding hole from the direction of pointing to the second holding arm from the first holding arm so as to push and push the first clamping piece.

In the embodiment of the application, the first clamping piece can move inwards under the pushing of the pushing piece until the first clamping piece abuts against the side face of the middle wave crest, so that the wind-resistant clamp clamps the middle wave crest at two sides, the clamping force is adjustable, the clamping device is suitable for the middle wave crests of different types, and the tripping condition is avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows a schematic structural view of an embodiment of the roof panel of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

fig. 4 is an assembly schematic view of a wave crest and a middle support in the roof panel of fig. 1, wherein the wave crest and the middle support are in an initial state;

FIG. 5 is a partial schematic view of the mid-peak and mid-stent of FIG. 4;

fig. 6 is an assembly schematic view of a wave crest and a middle support in the roof panel of fig. 1, wherein the wave crest and the middle support are in an engaged state;

FIG. 7 is a partial schematic view of the mid-peak and mid-stent of FIG. 6;

fig. 8a is an assembly schematic view of a closure and an edge support of a roof panel according to the present application;

fig. 8b is a schematic structural view of an embodiment of the roof panel of the present application;

fig. 8c is a schematic structural view of an embodiment of the roof panel of the present application;

fig. 8d is a schematic structural view of an embodiment of a roof panel of the present application;

fig. 9 is a schematic view of the assembly of a roof panel and a mid-support in an embodiment of the present application;

fig. 10 is a schematic view of an assembly structure of an embodiment of the roof panel and roof purlin of the present application;

FIG. 11 is a schematic view of the assembly of the edge support and the roof purlin of FIG. 10;

FIG. 12 is a schematic view of the assembly of the middle bracket and the roof purline of FIG. 10;

fig. 13 is a schematic view of an assembly structure of another embodiment of the roof panel and roof purlin of the present application;

FIG. 14 is a schematic view of the assembled side bracket and roof purlin of FIG. 13;

FIG. 15 is a schematic view of the assembled structure of the middle bracket and roof purlin of FIG. 13;

FIG. 16 is a schematic structural view of an embodiment of the roofing system of the present application integrated with photovoltaic panels;

FIG. 17 is a schematic structural view of another embodiment of the roofing system of the present application integrated with photovoltaic panels;

FIG. 18 shows a schematic structural view of yet another embodiment of the roofing system of the present application integrated with photovoltaic panels;

fig. 19 is a schematic structural view of an embodiment of the roofing panel of the present application;

FIG. 20 is a top view of the roof panel of FIG. 19;

fig. 21 is a schematic structural view of an embodiment of the roof panel of the present application;

FIG. 22 is a top view of the roof panel of FIG. 21;

fig. 23 is a schematic structural view of an embodiment of the roof panel of the present application;

FIG. 24 is a top plan view of the roof panel of FIG. 23;

FIGS. 25-29 are schematic structural views of an embodiment of a stent of the present application;

fig. 30 is a schematic view of an assembled roof panel and a mid-support in an embodiment of the present application;

fig. 31 and 32 are schematic structural views of a wind-resistant clip according to an embodiment of the present application;

FIGS. 33 and 34 are schematic views of the wind clip and the middle wave crest in an embodiment of the present application;

FIGS. 35 and 36 are schematic structural views of an anti-wind clamp assembly according to an embodiment of the present application;

FIGS. 37 to 47 show schematic assembled views of a wind-resistant clip and a middle wave crest in various embodiments of the present application;

FIGS. 48-61 show a schematic view of a wind clip according to another embodiment of the present application;

fig. 62 and 63 respectively show the structure schematic diagrams of the pressing block in different embodiments of the present application.

The reference numbers illustrate:

the implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The application provides a roof panel.

In the embodiment of the present application, referring to fig. 1 to 7, a roof panel 100 includes a panel body, a partial region of the panel body is recessed upward to form a middle peak 10, the middle peak 10 has two opposite side walls 11, the two side walls 11 are respectively bent in multiple sections, so that at least one limiting space 122 is formed in the middle peak 10, and the two opposite side walls 11 of the at least one limiting space 122 can be bent downward when receiving an external force, so as to engage with the middle support 200.

Specifically, the spacing space 122 has an initial state and an engaged state, as shown in fig. 4 and 5, in the initial state, the middle bracket 200 is located in the spacing space 122, and a gap may be provided between the middle bracket 200 and the side wall 11 of the spacing space 122, and the middle bracket 200 may have a smaller moving space in the spacing space 122. Of course, the middle support 200 may contact the side wall of the spacing space 122. As shown in fig. 6 and 7, when the side wall 11 of the space 122 is bent downward when receiving an external force and is in an engaged state, the middle bracket 200 contacts the side wall 11 of the space 122 and is engaged with the side wall, thereby restricting the middle bracket 200 from moving relative to the side wall 11 of the space 122.

The engagement in the embodiment of the present application means that the middle support 200 is clamped by the side wall 11 of the spacing space 122 at least in a partial position, and the middle support 200 is restricted from moving relative to the spacing space 122.

In addition, when the side wall 11 of the spacing space 122 is bent downward by an external force, the middle bracket 200 may also be bent together to engage with the side wall 11 of the spacing space 122.

In some embodiments, the first position-limiting lip 221 (see the following embodiments for specific structures) of the middle bracket 200 is engaged with the position-limiting space 122, and in the engaged state, the first position-limiting lip 221 is engaged with the sidewall 11 of the position-limiting space 122. Illustratively, in the initial state, the first limiting lip 221 and the limiting space 122 are umbrella-shaped; when in the engaged state, the two first limiting lips 221 and the two sides of the limiting space 122 are folded towards the middle.

Further, the spacing space 122 has a downward opening 123, and the width of the opening 123 is smaller than the maximum width of the spacing space 122, so as to limit the middle bracket 200 from escaping from the spacing space 122 toward the opening 123. Specifically, the first retaining lip 221 of the middle bracket 200 extends from the opening 123 into the retaining space 122.

In the embodiment of the application, the limiting space 122 is formed in the middle wave crest 10 of the roof panel 100, and after the middle support 200 extends into the limiting space 122, the position of the middle wave crest 10 corresponding to the limiting space 122 is bent downward, so that the side wall 11 of the limiting space 122 is engaged with the middle support 200, that is, the middle support 200 is tightly clamped by the side wall 11, thereby limiting the separation of the middle support 200 and the roof panel 100. The middle support 200 is fixed on other structures such as the roof purline 52, so that after the middle support 200 is meshed with the middle wave crest 10 of the roof panel 100, the connection stability and the wind uncovering resistance between the middle support 200 and the roof panel 100 are improved, which is equivalent to fixing the roof panel 100 relative to the roof purline 52, and greatly reducing the phenomenon that the roof panel 100 is uncovered by wind.

Furthermore, since the side wall 11 of the stopper space 122 is bent downward and then engages with the middle bracket 200, at least a portion of the side wall 11 is engaged with the lower side and the inner side of the first stopper lip 221 of the middle bracket 200, thereby preventing the middle wave peak 10 from being separated upward from the first stopper lip 221. Moreover, two side walls 11 of the limiting space 122 are engaged with the middle support 200, so that bilateral engagement is realized, the stress is more balanced, and the wind uncovering resistance effect is better.

The middle wave crest 10 comprises a limiting section 12, and a limiting space 122 is formed in the limiting section 12. Further, the limiting section 12 includes a plurality of limiting portions 121 sequentially arranged along the up-down direction, a limiting space 122 is formed in each limiting portion 121, the limiting space 122 has a downward opening 123, and the width of the opening 123 is smaller than the maximum width of the corresponding limiting space 122. That is, the middle wave crest 10 has a plurality of limiting spaces 122 distributed up and down, wherein a part of the limiting spaces 122 are engaged with the middle bracket 200, and the other limiting spaces 122 are engaged with the middle bracket 200. The buckling here means that the second limiting lip 222 is disposed on the middle support 200 and is adapted to the limiting space 122, and the two can be attached to each other, or the second limiting lip 222 has a smaller moving space in the limiting space 122.

Through setting up a plurality of spacing spaces 122 for well support 200 has interlock position and lock position with well crest 10 simultaneously, has increased the area of contact of well support 200 and well crest 10, and has increased the junction of well support 200 and well crest 10, thereby has improved the stability of being connected of well support 200 and well crest 10.

In some embodiments of the present application, in two adjacent limiting portions 121, the maximum width of the lower limiting portion 121 is smaller than the maximum width of the upper limiting portion 121. Optionally, in two adjacent spacing spaces 122, the maximum width of the upper spacing space 122 is greater than the maximum width of the lower spacing space 122.

For better explanation, the first limiting space 122a is used as the limiting space 122 for engaging with the middle bracket 200, and the second limiting space 122b is used as the limiting space 122 for engaging with the middle bracket 200.

In some embodiments, the first limiting space 122a is located above the second limiting space 122b, so that the maximum width of the first limiting space 122a is greater than the maximum width of the second limiting space 122b, and thus the first limiting lip 221 and the first limiting space 122 of the middle bracket 200 have a larger engaging area, and the limiting effect is better.

The side wall 11 includes a first limiting wall 124 and a second limiting wall 125 at a position corresponding to one of the limiting spaces 122 (specifically, the first limiting space 122 a), the first limiting wall 124 and the second limiting wall 125 are both arranged to be inclined inward from bottom to top, an inclination angle of the first limiting wall 124 is smaller than an inclination angle of the second limiting wall 125, a lower end of the first limiting wall 124 is connected to an outer end (the outer end is also a lower end) of the second limiting wall 125, and an upper end of the first limiting wall 124 is higher than an inner end (the inner end is also an upper end) of the second limiting wall 125. The first and second limiting

walls

124 and 125 can be bent downward when an external force is applied, so as to engage with the middle bracket 200. In the embodiment of the present application, a relatively narrow corner portion is formed between the first limiting wall 124 and the second limiting wall 125, and the narrow corner portion can have a relatively large engagement area with the elongated first limiting lip 221.

In some embodiments of the present application, the width of the limiting portion 121 gradually decreases from bottom to top. Further, in the direction from bottom to top, the width of the limiting space 122 is gradually reduced, so that the limiting part 121 and the limiting space 122 are in a shape with a small upper end and a large lower end, and two narrow corners can be formed at two sides of the limiting space 122, so as to better fit with the middle support 200.

In some embodiments of the present application, the openings 123 of all the spacing spaces 122 are sequentially distributed along the vertical direction, so that the middle support 200 can extend into the spacing spaces 122 from the openings 123. Optionally, the centerline of the opening 123 coincides with the centerline of the spacing space 122. Of course, the opening 123 may be offset from the centerline of the spacing space 122.

Further, an accommodating space 131 is formed in the middle wave crest 10, and a top wall 132 of the accommodating space 131 is upwardly recessed to form the limiting space 122. The accommodating space 131 is used for accommodating the base 21 of the middle bracket 200, and the connector 22 of the middle bracket 200 can extend upwards from the accommodating space 131 into the limiting space 122.

Specifically, the middle wave crest 10 includes an accommodating section 13 and a limiting section 12, an accommodating space 131 is formed in the accommodating section 13, a top wall 132 of the accommodating space 131 is recessed upwards to form the limiting section 12, and a limiting space 122 is formed in the limiting section 12.

Optionally, the minimum width of the accommodating section 13 is larger than the maximum width of the limiting section 12. Specifically, to the inner space, the minimum width of the accommodating space 131 is greater than the maximum width of the limiting space 122. Therefore, the outer width of the accommodating section 13 is larger than the outer width of the limiting section 12, that is, the accommodating section 13 has a larger size as a whole, and the limiting section 12 has a smaller size as a whole. Meanwhile, the inner dimension of the accommodating section 13, i.e., the dimension of the accommodating space 131, is also larger than the inner dimension of the limiting section 12, i.e., the dimension of the limiting space 122. In the embodiment of the present application, the accommodating space 131 has a large volume and is used for accommodating the base 21 of the middle support 200. The volume of the spacing space 122 is small for engaging or buckling with the connector 22 of the middle bracket 200.

In some embodiments of the present application, the restraint section 12 is located on the centerline of the top wall 132. Optionally, a center line of the position-limiting section 12 coincides with a center line of the top wall 132, and the position-limiting section 12 is symmetrically arranged with the center line of the top wall 132 as a center. In addition, the center lines of all the stopper portions 121 overlap. In particular, the central peak 10 may be an axisymmetric structure.

In the embodiment of the present application, the limiting portion 121 may be substantially triangular, quadrangular, formed by splicing two triangles, and the like. Alternatively, the position-limiting portions 121 are substantially triangular, and the position-limiting portions 121 of the respective triangles are sequentially arranged in the vertical direction to form a tower shape. Correspondingly, each spacing space 122 is substantially triangular.

The receiving section 13 may be triangular, trapezoidal, square, rectangular, hexagonal, etc. Optionally, the accommodating section 13 is an isosceles trapezoid with a smaller upper end and a larger lower end, and correspondingly, the accommodating space 131 is an isosceles trapezoid.

In this embodiment, the shape and size of the roof panel 100 may be selected and designed according to actual needs or industry standards, for example, the overall roof panel 100 may be rectangular, which is not limited herein. The material of the roof panel 100 is not limited to a specific material, and may be, but not limited to, a metal plate, and may be formed by a stamping process, a rolling process, or the like. The metal plate is preferably a plate with a corrosion-resistant layer on the surface to improve the corrosion resistance of the plate, such as but not limited to a steel plate. The corrosion-resistant layer is for example but not limited to a paint layer, a zinc coating layer, etc.

Referring to fig. 1 and 8a, two opposite side edges of the panel body form connecting locking edges 14, and the connecting locking edge 14 of one roof panel 100 is used to connect with the connecting locking edge 14 of another adjacent roof panel 100. When the roof panels 100 are installed, the connecting locking edges 14 of two adjacent roof panels 100 are connected with each other, so that the splicing of a plurality of roof panels 100 can be realized, an additional connecting structure is not needed, the connecting mode is simple and rapid, and the operation is easy. Normally, the connecting locking rims 14 are arranged on both sides of the roof panel 100 in the width direction, i.e. the connecting locking rims 14 extend along the length direction of the roof panel 100, so that the long sides of two adjacent roof panels 100 are connected to each other by the connecting locking rims 14, improving the overall connection stability. In this embodiment the central peak 10 extends along the length of the roof panel 100, in parallel with the connecting overlock 14. Parallel here means parallel or substantially close to parallel.

The connecting locking edge 14 may have various structures and shapes, and in order to allow two adjacent connecting locking edges 14 to be stably connected, the connecting locking edge 14 is usually bent. The bending directions of the connecting locking edges 14 on both sides of the same roof panel 100 may be the same or different. The connecting locking edges 14 are arranged in a bent shape, in the same roof panel 100, one of the connecting locking edges 14 is a male rib 141, the other connecting locking edge 14 is a female rib 142, and the male rib 141 of one roof panel 100 is fastened with the female rib 142 of the other adjacent roof panel 100.

As shown in fig. 1 and 8a, in some embodiments, each of the male rib 141 and the female rib 142 is formed by bending a plurality of segments integrally from a straight wall.

As shown in fig. 8b, in some embodiments, each of the male rib 141 and the female rib 142 is formed by bending a straight wall and an arc wall together, wherein the arc wall of the male rib 141 and the arc wall of the female rib 142 are engaged, and the straight wall of the male rib 141 and the straight wall of the female rib 142 are engaged.

Referring to fig. 8a and 9, when two adjacent roof panels 100 are connected, the male rib 141 of one of the roof panels 100, the connecting sheet of the edge support 60, and the female rib 142 of the other roof panel 100 are turned by a special tool, so as to achieve the fixed connection between the two adjacent roof panels 100 and the edge support 60. To facilitate the connection of the roof panel 100 to the edge support 60, the roof panel 100 is typically provided with a raised location for connecting the lockdown edge 14 for receiving the edge support 60. In this way, the wave trough 16 is formed between the connecting locking edge 14 and the middle wave peak 10, when the photovoltaic panel 70 is installed on the roof panel 100, the bottom surface of the wave trough 16 has a larger gap with the photovoltaic panel 70, so that the wave trough 16 can be used as a heat dissipation channel to improve the heat dissipation capability of the photovoltaic panel 70. When the roof panel 100 is not used with the photovoltaic panel 70, the wave troughs 16 can also be used as heat dissipation channels. The edge brackets 60 may be mechanically connected to the roof purlins 52, particularly by self-tapping screws.

The number of the middle peaks 10 may be one (as shown in fig. 1), two (as shown in fig. 8c and 8 d) or more, and may be specifically selected and designed according to actual needs, which is not limited herein.

Referring to fig. 19 to 24 in combination, further, the roof panel 100 is provided with reinforcing ribs 15, and the reinforcing ribs 15 are arranged on the wave bottom. The reinforcing ribs 15 may extend in an elongated shape along the length of the roof panel 100, or the reinforcing ribs 15 may extend in an elongated shape along the width of the roof panel 100. As shown in fig. 19 and 20, the roof panel 100 is provided with a plurality of reinforcing ribs 15, the plurality of reinforcing ribs 15 are arranged in a rectangular array, and the longitudinal direction of the reinforcing ribs 15 is along the longitudinal direction of the roof panel 100. As shown in fig. 21 to 24, the roof panel 100 is provided with a plurality of reinforcing ribs 15, the plurality of reinforcing ribs 15 are arranged at intervals along the length direction of the roof panel 100, and the length direction of the reinforcing ribs 15 is along the width direction of the roof panel 100. After the reinforcing ribs 15 are arranged, the overall strength of the roof panel 100 can be enhanced.

The shape of the ribs 15 includes, but is not limited to, trapezoidal (as shown in fig. 19 and 20), triangular (as shown in fig. 23 and 24), square, and the like.

In the embodiment of the present application, the roof panel 100 may be used as a common roof panel 100, that is, the photovoltaic panel 70 is not mounted on the roof panel 100.

Please refer to fig. 19 in combination, further, the present embodiment also provides a roof panel 100, and the roof panel 100 can be used in combination with the photovoltaic panel 70. The roof panel 100 differs from the roof panel 100 described above in that it further comprises a bearing surface 133, and other structures of the roof panel 100 can be found in the above-described embodiments and will not be described in detail here.

Please refer to fig. 2, fig. 3 and fig. 19 in combination, wherein the enlarged diagram of the middle peak in fig. 19 is substantially similar to the structure of fig. 2 and fig. 3. Specifically, the middle wave peak 10 is provided with a bearing surface 133 facing upward, and the bearing surface 133 protrudes from the highest point of the connecting locking edge 14. The connecting locking edge 14 of one roof panel 100 is used to connect with the connecting locking edge 14 of another roof panel 100, and the bearing surface 133 is used to support the photovoltaic panel 70, i.e. the photovoltaic panel 70 is overlapped on the bearing surface 133, so that the connecting locking edge 14 is located below the photovoltaic panel 70.

The bearing surface 133 protrudes from the highest point of the locking edge 14, which means that the height difference L1 between the bearing surface 133 and the wave trough 16 is greater than the height difference L2 between the locking edge 14 and the wave trough 16. The wave trough 16 here refers to the area of the roof panel 100 between the wave crest 10 and the connecting lockstitch 14.

For ease of illustration, the following directions are all with reference to the orientation of the roof panel 100 when installed on the roof purlin 52 and the user is on the ground, with the roof panel 100 being positioned above the roof purlin 52. It is understood that a part of the roof panel 100 is recessed upward to form the middle wave peak 10, and the roof panel 100 forms a cavity (the cavity refers to the accommodating space 131 and the spacing space 122) corresponding to the middle wave peak 10. The accommodating space 131 of the roof panel 100 can be in adaptive connection with the middle support 200, and the middle support 200 can be mechanically connected with the roof purline 52 through self-tapping screws. Thus, when the photovoltaic roof is assembled and formed, the roof panels 100 are carried on the roof purlin 52, the roof purlin 52 is connected with the middle support 200 and the side support 60, the middle support 200 extends into the accommodating space 131 and the limiting space 122 below the middle wave crest 10 to be clamped and engaged, and the connecting sheet of the side support 60 is locked with the connecting locking edge 14 of two adjacent roof panels 100. The middle part and the two sides of the roof panel 100 are fixedly connected with the roof purlines 52, the stress span is reduced, the stress area is increased, the connection stability of the roof panel 100 and the roof purlines 52 is improved, the wind-resistant uncovering capacity of the roof panel 100 is improved, the roof panel 100 is not prone to deformation, and the problem that the photovoltaic panel 70 is hidden and cracked due to wind uncovering of the roof panel 100 is solved.

It should be noted that the extending direction of the middle peak 10 and the extending direction of the connecting seam allowance 14 may be the same or different. To facilitate the secure connection between the roof panel 100, photovoltaic panel 70 and roofing purlin 52, optionally, the direction of extension of the central peak 10 coincides with the direction of extension of the connecting lockstitching 14.

It will be appreciated that the bearing surface 133 is the upper wall surface of the crest 10, i.e., the surface facing away from the roofing purlin 52. The number of the supporting surfaces 133 on each middle peak 10 may be one, and two adjacent photovoltaic panels 70 are overlapped on the same supporting surface 133. Of course, the number of the supporting surfaces 133 on each middle peak 10 may also be two or more, so that two adjacent photovoltaic panels 70 are respectively overlapped on one supporting surface 133. The specific design and selection can be made according to the actual use situation, and are not limited herein. The bearing surface 133 may be a plane or a curved surface. In order to make the contact between the photovoltaic surface and the bearing surface 133 of the middle peak 10 more stable, the bearing surface 133 is optionally provided as a flat surface.

It should be noted that, when the connecting locking edge 14 protrudes from the photovoltaic panel 70 and is subjected to heavy rainfall, the photovoltaic panel 70 guides rainwater to the bearing platform below the connecting locking edge 14, and the bearing platform below the connecting locking edge 14 is prone to water accumulation due to untimely drainage, so that the accumulated water easily overflows the connecting locking edge 14 to permeate into the room from the joint of the connecting locking edge 14, thereby causing a water leakage hidden danger. And the bearing surface 133 protrudes from the top of the connecting locking edge 14, that is, the height of the bearing surface 133 is higher than the top surface of the connecting locking edge 14, so that after a plurality of roof panels 100 form a complete roof by the connecting mode of the connecting locking edge 14, the bearing surface 133 of the middle wave peak 10 can provide a mounting surface for the photovoltaic panel 70, and ensure that the photovoltaic panel 70 can be higher than the left and right connecting locking edges 14 of the roof panels 100, so that the connecting locking edge 14 is located below the photovoltaic panel 70 and spaced from the photovoltaic panel 70. Therefore, the photovoltaic panel 70 can shield the joint of the connecting locking edge 14 of the two adjacent roof panels 100, so that the installation of the photovoltaic panel 70 is satisfied, and meanwhile, the roof panels 100 are prevented from being soaked by rainwater when the connecting locking edge 14 is subjected to heavy rainfall, and further, the hidden danger of water leakage is reduced.

In the embodiment of the application, the roof panel 100 is installed between the roof purline 52 and the photovoltaic panel 70, so that the photovoltaic roof has good fireproof performance. And the middle wave peak 10 is formed by making the roof panel 100 concave upwards, the middle wave peak 10 is provided with a bearing surface 133, and the bearing surface 133 protrudes out of the connecting locking edges 14 at both sides of the roof panel 100. After a plurality of roof panels 100 are connected by the connecting locking edges 14 to form a complete roof, the photovoltaic panel 70 is installed on the bearing surface 133 of the middle wave peak 10, and it is ensured that the photovoltaic panel 70 can be higher than the left and right connecting locking edges 14 of the roof panels 100, so that the connecting locking edges 14 are located below the photovoltaic panel 70 and spaced apart from the photovoltaic panel 70. So, accessible photovoltaic board 70 shelters from the junction of the connection lockstitch 14 of two adjacent roof boarding 100, avoids the rainwater when the connection lockstitch 14 of roof boarding 100 suffers strong rainfall to soak when satisfying the installation of photovoltaic board 70, and then reduces the hidden danger of leaking, improves roofing photovoltaic system's leak protection water effect. In addition, the middle part of the roof panel 100 is upwardly convexly bent to form the middle wave peak 10, and the lower part of the roof panel 100 corresponding to the middle wave peak 10 forms an accommodating space 131 and a limiting space 122 which are in adaptive connection with the middle support 200. So, when the equipment formed the photovoltaic roof, roof boarding 100 was close to intermediate position and both sides all with roofing purlin 52 fixed connection, has reduced the atress span, and increase lifting surface area has promoted roof boarding 100 and roofing purlin 52's connection steadiness, and then has improved roof boarding 100's anti-wind ability of taking off, and makes roof boarding 100's middle part be difficult for taking place to warp, and then has solved roof boarding 100 and has taken off the hidden problem of splitting of photovoltaic board 70 that leads to because of wind.

Illustratively, as shown in fig. 16 and 17, the roofing photovoltaic system includes at least two roof panels 100, two adjacent roof panels 100 are connected by two adjacent connecting locking edges 14, and the two adjacent connecting locking edges 14 cooperate to form a locking structure 17, and the locking structure 17 is located between two adjacent middle wave crests 10 and below the bearing surface 133. In practice, the number and size of roof panels 100 may be selected based on the area of the roof. So that the connecting locking edges 14 of two adjacent roof panels 100 are connected to form the locking structure 17, after a plurality of roof panels 100 are connected into a complete roof through the locking structure 17, the photovoltaic panel 70 is shielded above the locking structure 17 to prevent water leakage at the locking structure 17.

In some embodiments, the top wall 132 of the receiving section 13 of the middle wave 10 includes two bearing surfaces 133, and the position-limiting section 12 is located between the two bearing surfaces 133. In this way, two adjacent photovoltaic panels 70 are respectively overlapped on two different bearing surfaces 133 of the same medium wave peak 10. Specifically, the top wall 132 of the accommodating section 13, except for the recessed position of the limiting section 12, serves as a bearing surface 133.

In some embodiments, the top surface of the middle wave peak 10 forms a carrying surface 133, so that two adjacent photovoltaic panels 70 can be overlapped on the same carrying surface 133.

The present embodiment also provides a roof panel assembly, which includes the roof panel 100, the supporting structure and the middle supporting frame 200 (the specific structure of the middle supporting frame 200 is specifically described in the following embodiments) described above, the lower end of the middle supporting frame 200 is fixedly connected to the supporting structure, the upper end of the middle supporting frame 200 can be disposed in the spacing space 122 and is engaged with the side wall 11 of the middle peak 10 at the spacing space 122, and the upper end of the middle supporting frame 200 is also in spacing connection with the side wall 11 at the opening 123, so as to prevent the middle supporting frame 200 from falling off the middle peak 10.

The embodiment of the present application further provides a roofing system capable of integrating photovoltaic, which includes the roofing plate assembly and the photovoltaic panel 70, wherein the roofing plate assembly includes at least two roofing plates 100, and the connecting locking edge 14 of one roofing plate 100 is used to connect with the connecting locking edge 14 of another roofing plate 100 adjacent to the roofing plate assembly. The photovoltaic panel 70 is overlapped on the supporting surface 133 and located above the connecting locking edge 14.

Referring to fig. 10 to 18, in some embodiments, the roofing system has a plurality of roof panels 100 and a plurality of photovoltaic panels 70 arranged in sequence, the width direction of the roof panels 100 is along the arrangement direction of the plurality of roof panels 100, and the plurality of photovoltaic panels 70 are arranged in sequence along the width direction of the roof panels 100.

In the above, the supporting structure includes a plurality of stacked sub-layers, and the plurality of sub-layers at least include a thermal insulation layer 51, a roof purline 52 and a floor layer 53; the heat insulation layer 51 and the bottom plate layer 53 are both connected with the roof purline 52. The middle bracket 200 is arranged on the heat insulation layer 51, and the fasteners 42a/42b penetrate through the heat insulation layer 51 to be connected with the roof purlines 52 so as to fix the base 21. The fasteners 42a/42b may be screws or bolts or rivets.

The roof panel 100 and the roof purline 52 which is vertical to the roof panel are connected through the edge bracket 60 and the middle bracket 200 through self-tapping screws, so that the roof panel 100 and the roof purline 52 are reliably fixed, and the length deformation of the roof panel 100 caused by expansion with heat and contraction with cold is also met; an insulating layer is laid between the roof panel 100 and the roof purline 52, and has the functions of heat preservation and heat insulation; the bottom of the roof purline 52 is fixed with the bottom plate layer 53 through self-tapping screws, so that the inner side of the structure is attractive.

For fixing convenience, flanges can be arranged at the upper end and the lower end of the roof purline 52 respectively, the middle support 200 is connected with the flange at the upper end, and the bottom plate layer 53 is connected with the flange at the lower end.

Further, the roofing system also includes a secondary purlin bracket 55. The roofing purlins 52 may include primary roofing purlins 521, secondary roofing purlins, and the support structure may further include a roof hold plate 54.

The roof boarding 100 and the adjacent roof boarding 100 of the roofing system are connected in a way that a male rib 141 of the roof boarding 100, a connecting sheet of an edge support 60 and a female rib 142 of the other roof boarding 100 are turned up for 360 degrees by a special tool such as an edge locking machine, and the edge support 60 is mechanically fixed with a roof purlin 52 by a tapping screw.

The side bracket 60 has, for example, but not limited to, a rectangular structure or a rectangular-like structure, and one end of the side bracket 60 has a hook structure such that one end of the hook has a certain amount of elastic deformation and can be inserted between the male rib 141 and the female rib 142 under pressure.

The wave crest 10 in the roof panel 100 adopted by the roofing system can be buckled and meshed with the middle support 200, and the middle support 200 is mechanically fixed with the roof purline 52 through self-tapping screws. When the middle bracket 200 is snap-connected to the middle wave crest 10, the limiting space 122 can be bent by a special tool, so that the first limiting lip 221 of the middle bracket 200 and the side wall 11 of the limiting space 122 are snap-connected together.

Referring to fig. 25 to 30, in order to improve the anti-wind effect of the roof panel 100, further, an embodiment of the present application further provides a middle support 200 engaged on both sides, where the middle support 200 is used for the roof panel 100, and includes a base 21 and a connector 22, the connector 22 is connected to the base 21, two opposite sides of the connector 22 are respectively provided with a first limiting lip 221, the first limiting lip 221 has elasticity, and the first limiting lip 221 can be bent downward to engage with the limiting space 122 of the roof panel 100 (i.e., the first limiting space 122).

The maximum width between the two first limiting lips 221 is larger than the width of the opening 123 of the limiting space 122, so that the first limiting lips 221 are prevented from being separated from the limiting space 122 from the opening 123 after extending into the limiting space 122.

Specifically, in the process that the connecting head 22 extends into the limiting space 122 from bottom to top, because the first limiting lip 221 has elasticity, the first limiting lip 221 is pressed at the opening 123 to generate elastic deformation, so that the first limiting lip 221 is located in the limiting space 122 through the opening 123. When the first position-limiting lips 221 are in the position-limiting space 122 and then restore to elastic deformation, the two first position-limiting lips 221 on the two sides are clamped above the opening 123, and are prevented from being separated downwards from the opening 123 again. Then, the limiting space 122 is bent downwards by means of a special tool, so that the limiting space 122 and the first limiting lip 221 are bent downwards together until the first limiting lip 221 is meshed with the limiting space 122, namely, the upper side and the lower side of the first limiting lip 221 are tightly attached to the upper side wall 11 and the lower side wall 11 of the limiting space 122 respectively, so that the first limiting lip 221 is limited to move in all directions pinched by the limiting space 122, and therefore the middle support 200 and the roof panel 100 are well fixed, and the roof panel 100 is prevented from being uncovered by wind.

Two opposite sides of the connector 22 of the middle support 200 are respectively provided with a first limiting lip 221, and the first limiting lips 221 located at the same height are arranged in the same limiting space 122, so that two first limiting lips 221 are arranged in the same limiting space 122, and therefore the same limiting space 122 and the connector 22 can be meshed at two sides, the stress is more balanced, and the wind-proof effect is better.

The first position-limiting lip 221 protrudes outside the connecting head 22, and the first position-limiting lip 221 and the connecting head 22 may be disposed vertically, that is, the connecting head 22 extends in a vertical direction, and the first position-limiting lip 221 extends in a horizontal direction. Alternatively, the first stopper lip 221 is disposed obliquely with respect to the connection head 22. Illustratively, in the direction from bottom to top, the first limiting lips 221 on both sides gradually get closer together, so the first limiting lips 221 on both sides are arranged like an umbrella, and the upper ends of the first limiting lips 221 on both sides are closer and the lower ends are farther. Thus, in the process that the connector 22 extends into the middle wave crest 10 from bottom to top, the upper ends of the two first limiting lips 221 at the same height are similar to the tips, so that a guiding effect can be achieved, and the connector can be inserted into the limiting space 122 from the opening 123 more quickly and conveniently. After being inserted into the limiting space 122, the lower end of the first limiting lip 221 can abut against the sidewall 11 at the bottom of the limiting space 122 to prevent the first limiting lip from being separated back.

Alternatively, the top end of the connecting head 22 is pointed, and the upper end of the first limit lip 221 is connected with the pointed end. Therefore, the tip of the connection head 22 and the first stopper lip 221 are formed as inclined walls opened downward and outward, and can more smoothly pass through the opening 123 of the stopper space 122 during the insertion into the stopper space 122.

Alternatively, the connecting head 22 is formed by integrally bending a metal plate, and the first limit lip 221 includes two lip edges stacked in the up-down direction. Of course, in other embodiments, the connector 22 may be formed by injection molding a plastic material.

Further, the two opposite sides of the connecting head 22 are respectively provided with a second limiting lip 222, the first limiting lip 221 and the second limiting lip 222 are distributed at intervals in the up-down direction, the second limiting lip 222 has elasticity, and the second limiting lip 222 is used for being buckled with another limiting space 122 (i.e. the second limiting space 122) of the roof panel 100.

The maximum width between the two second position-limiting lips 222 is greater than the width of the opening 123 of the position-limiting space 122, so that the second position-limiting lips 222 are prevented from being separated from the position-limiting space 122 from the opening 123 after extending into the position-limiting space 122.

Specifically, in the process that the connecting head 22 extends into the limiting space 122 from bottom to top, since the second limiting lip 222 has elasticity, the second limiting lip 222 is pressed at the opening 123 to generate elastic deformation, so that the second limiting lip 222 is located in the limiting space 122 through the opening 123. When the second limiting lip 222 is located in the limiting space 122, the second limiting lip restores to elastic deformation again and is matched and buckled with the limiting space 122 to prevent the second limiting lip from being disengaged from the opening 123 downwards again, so that the middle support 200 and the roof panel 100 are further fixed, and the roof panel 100 is prevented from being uncovered by wind.

The second retention lip 222 may be in the form of a flap, triangle, square, oval, or the like. Illustratively, the second retention lip 222 is triangular in shape, and two of the second retention lips 222 are joined to form a large triangle having a smaller upper end and a larger lower end for guiding the passage of the fluid upward through the opening 123.

Illustratively, the connecting head 22 is provided with two first position-limiting lips 221 and two second position-limiting lips 222, wherein the two first position-limiting lips 221 are located at the same height and are respectively arranged at two opposite sides of the connecting head 22. Similarly, the two second retention lips 222 are located at the same height and are disposed on opposite sides of the connecting head 22. Of course, in other embodiments, more first stop lips 221 and more second stop lips 222 may also be provided on the connecting head 22.

Since the roof panel 100 is affected by expansion and contraction with heat, natural wind, etc., the structure and position of the roof panel 100 may change to some extent, which may cause the roof panel 100 to slide to adapt to the change, in order to adapt to this phenomenon, in the embodiment of the present application, the connecting head 22 is slidably connected to the base 21 to have a relative displacement along the first horizontal direction. Optionally, the first horizontal direction is along the length of the central peak 10. It should be noted that the connecting head 22 and the base 21 are fixed in the up-down direction, so as to prevent the connecting head 22 from being separated from the base 21 upwards, and ensure that the roof panel 100 and the roof purlin 52 are kept still in the up-down direction.

In some embodiments, the connection head 22 is provided with a sliding portion 223, and the base 21 is provided with a sliding slot 211 to slidably connect with the sliding portion 223. In other embodiments, the sliding groove 211 may be disposed on the connection head 22.

To facilitate the installation of the connection head 22 and the base 21, in some embodiments of the present application, the sliding groove 211 penetrates through two opposite sides of the base 21 along the first horizontal direction, and the sliding portion 223 can slide into the sliding groove 211 from any end of the sliding groove 211. The base 21 is further provided with a yielding channel 215, the yielding channel 215 is communicated with the sliding groove 211 and upwards penetrates through the top surface of the base 21, and the connector 22 extends out of the yielding channel 215. Therefore, during assembly, the connector 22 only needs to be pushed from one end of the sliding groove 211 along the first horizontal direction, and the width of the abdicating channel 215 can be smaller than the maximum width of the sliding portion 223, so as to limit the sliding portion 223, and thus the sliding portion 223 can be prevented from being separated from the sliding groove 211 upwards.

In other embodiments of the present application, the sliding groove 211 may only penetrate through one of the side surfaces of the base 21, or neither side surface of the base 21 may be penetrated by the sliding groove 211.

In some embodiments of the present application, the sliding portion 223 includes a first fitting portion 2231 and a second fitting portion 2232, and the second fitting portion 2232 protrudes upward and/or downward from the first fitting portion 2231; the base 21 is provided with a slide groove 211, and the slide groove 211 is fitted with the slide portion 223. Illustratively, the upper and lower sides of the first fitting portion 2231 are provided with second fitting portions 2232.

Alternatively, the connection head 22 includes an elongated connection body 224, the sliding portion 223 is disposed at the lower end of the connection body 224, the first limit lip 221 is disposed at the upper end of the connection body 224, and the second seal lip is disposed at a position near the upper end of the connection body 224. The sliding portions 223 laterally protrude at both sides of the connection body 224, i.e., the connection body 224 may be disposed at the middle of the sliding portions 223. Specifically, the connecting body 224 is disposed in the middle of the top surface of the first fitting portion 2231, the two side edges of the top surface of the first fitting portion 2231 are respectively provided with the second fitting portions 2232 protruding upward, and the two side edges of the bottom surface of the first fitting portion 2231 are respectively provided with the second fitting portions 2232 protruding downward, that is, the sliding portion 223 may be formed into an "i" shape similar to the transverse direction. Further, the top surfaces of the first matching portions 2231 distributed on both sides of the connecting body 224 are recessed downward from the connecting body 224, such that the top surfaces include two arc-shaped walls distributed on both sides of the connecting body 224. Similarly, the bottom surfaces of the second matching portions 2232 on both sides of the connecting body 224 are respectively recessed upward with the connecting body 224 as the center, so that the bottom surfaces include two arc-shaped walls on both sides of the connecting body 224. Correspondingly, the sliding groove 211 is adapted to the sliding portion 223, and may be in an "i" shape.

In other embodiments, the sliding portion 223 may also be triangular, L-shaped, T-shaped, etc., and the shape of the sliding slot 211 is adapted to the sliding portion 223, which are substantially the same, so as to better fit and prevent the sliding portion 223 from separating from the sliding slot 211 along the up-down direction.

The base 21 in the embodiment of the present application may be a unitary block structure, or the base 21 may be formed by combining a plurality of bases. In some embodiments, the base 21 includes two fixing bases 212 connected to each other, and opposite surfaces of the two fixing bases 212 (for example, the downward surface refers to a surface extending in the up-down direction) are respectively provided with notches to jointly form the sliding groove 211. Optionally, the notch is T-shaped, and the two notches together form an "i" shape.

The two fixing bases 212 are provided with protrusions 213 on their opposite surfaces, the protrusions 213 are located below the sliding slots 211 and abut against each other, and the two protrusions 213 are connected. Specifically, the two protrusions 213 are respectively provided with a fixing hole 214, and the fasteners 42a/42b pass through the corresponding fixing holes 214 on the two protrusions 213 to lock the two fixing bases 212. Further, the protruding portion 213 is provided with a plurality of fixing holes 214 along the first horizontal direction, and one fastening member 42a/42b is disposed in each fixing hole 214 for fixing with another protruding portion 213, so that a plurality of fixing positions are formed between the two fixing bases 212 in the first horizontal direction, and the connection stability of the two fixing bases is improved.

Optionally, the two fixing bases 212 are spaced above at least the sliding slot 211, and the spacing constitutes the receding channel 215, so that no additional opening is required on the fixing base 212 to form the receding channel 215. That is, the two opposite surfaces of the fixing base 212 have a space between the upper half sections and the lower half sections are tightly attached.

Further, the top surface of the fixed base 212 is provided with a top plate 216, and the top plate 216 is used for supporting the roof panel 100. Specifically, the top plate 216 contacts with the top wall 132 of the middle wave crest 10 accommodating section 13 and is supported on the lower surface of the top wall 132, and the top plate 216 has a larger supporting area and can support the top wall 132 of the middle wave crest 10 accommodating section 13, so as to reduce the stressed deformation of the top wall 132.

In the embodiment of the present application, the fixing base 212 may be a solid structure, or the fixing base 212 may be a hollow structure. Illustratively, the fixing base 212 is formed by sequentially enclosing a plurality of plate bodies to form a cavity structure having an opening, and the opening faces away from another fixing base 212. The fixing seat 212 with the hollow structure has smaller weight, and can reduce the stress of the roof purline 52. Meanwhile, the hollow structure is beneficial to saving materials and saving cost. Alternatively, the fixing bases 212 are substantially right trapezoid, and the right-angled side of the right trapezoid is adjacent to another fixing base 212 and extends in the up-and-down direction.

Referring to fig. 30, in other embodiments, the fixing base of the base 21a is triangular.

In addition, the bottom wall of the fixed base 212 is provided with mounting holes 217, and the fastener passes through the mounting holes 217 to be fixed to the roof purline 52.

In the embodiment of the present application, the connection head 22 may be a hollow structure, and of course, the connection head 22 may also be a solid structure. Alternatively, the connecting head 22 includes two connecting walls disposed oppositely and at an interval, and the upper ends of the connecting walls are connected. The upper ends of the connecting walls are connected here, meaning that the upper ends of the connecting walls are connected by other structures such as the first stopper lip 221. Specifically, the connecting body 224 of the connecting head 22 includes two connecting walls, and the connecting body 224 generally forms a U-shaped structure that is open downward.

In the above, the two connecting walls are respectively provided with the first limiting lip 221, and the two connecting walls are also respectively provided with the second limiting lip 222. Further, the lower ends of the two connecting walls each form a part of the sliding portion 223.

Alternatively, the connecting head 22 is integrally bent by an open downward U-shaped plate to form the first stopper lip 221, the second stopper lip 222 and the sliding portion 223. The connecting head 22 is made of metal and is integrally bent to form a first stopper lip 221, a second stopper lip 222 and a sliding part 223. The metallic connector 22 has a high strength and is prevented from breaking when subjected to natural wind. Furthermore, the connecting head 22 of metal structure is conveniently bent integrally to form the first and second limiting

lips

221, 222 and the sliding part 223.

Because the connector 22 is a hollow structure, after the connector 22 is inserted into the middle wave crest 10, and when the middle wave crest 10 is impacted by the outside, the connector 22 is easily squeezed and deformed, so to avoid this phenomenon, further, the middle bracket 200 further includes a reinforcing part 23, and the reinforcing part 23 extends upwards between the two connecting walls and can be abutted against the two connecting walls. Therefore, the reinforcing part 23 plays a role in supporting the thickness of the connector 22, so that when the connector 22 is locked with the wave crest 10 in the roof panel 100, the deformation of the thickness is avoided, and the quality of the locking seam is prevented from being influenced.

The shape of the reinforcement 23 includes, but is not limited to, a rod, a sheet, a bend, and the like. In some embodiments, the reinforcement portion 23 includes an open downwardly facing U-shaped body 231, and the U-shaped body 231 extends into the connection head 22, i.e., into the connection body, and abuts against the two connection walls. Adopt U-shaped main part 231 to set up between two connecting walls, U-shaped main part 231 can have a less deformation, adapts to the expend with heat and contract with cold of roof boarding 100 itself, is suitable for smoothly inserting between two connecting walls through the less deformation of self simultaneously.

Further, the reinforcing part 23 further includes a limiting flange 232 disposed at the lower end of the U-shaped main body 231, and the limiting flange 232 is bent outward and can abut against the sliding part 223 of the connecting head 22 to limit the upward movement of the reinforcing part 23. Specifically, the limit flange 232 abuts against the inner side of the top surface of the first fitting portion 2231, i.e., against the arc-shaped wall.

The embodiment of the present application further provides a roof panel assembly, where the roof panel assembly includes a roof panel 100 and a middle supporting frame 200, and for the specific structure of the roof panel 100 and the middle supporting frame 200, reference is made to the above embodiment, and details are not repeated here.

Roofing metal panels are typically secured in a snap-fit connection by a slidable middle bracket 200 and a support structure such as roofing purlin 52 to improve water resistance. The engagement strength of the roof panel 100 and the middle support 200 is a key to the wind resistance of the whole roofing system, and in order to improve the connection strength at this position, a wind-resistant clip 301/302 is generally added at the engagement position in a high wind pressure area. The currently used wind-resistant clamps 301/302 are both of two pieces type, and are clamped by a top bolt, so that the effect of protecting the occlusion position is achieved. However, the clamping force of the wind-resistant clamp 301/302 is limited, and the wind-resistant clamp 301/302, the roof panel 100 and the middle support 200 can generate relative displacement and deformation under the action of strong wind, so that the tripping condition is easy to occur, and the safety of a roof system is affected.

Referring to fig. 31 to 61, in view of this, the embodiment of the present application further provides a wind-resistant clip 301/302, where the wind-resistant clip 301/302 includes a clip main body 30, a first clip 34, and a pushing member 36.

Referring to fig. 31 to 34, the clamping body 30 includes a force-bearing arm 31, a first force-bearing arm 32 and a second force-bearing arm 33, the first force-bearing arm 32 is connected to the force-bearing arm 31, and the second force-bearing arm 33 is connected to the force-bearing arm 31. Specifically, the force bearing arm 31 has a first surface 311 and a second surface 312 which are away from each other, the first force bearing arm 32 and the second force bearing arm 33 are both located on one side of the first surface 311, the first force bearing arm 32 and the second force bearing arm 33 extend toward the same side, and the first force bearing arm 32 and the second force bearing arm 33 are respectively located on two opposite sides of the middle wave peak 10.

In some embodiments, the first surface 311 is a lower surface and the second surface 312 is an upper surface.

The first latch 34 is protrudingly provided on an inner side of the first torque arm 32, and the inner side of the first torque arm 32 means a side of the first torque arm 32 facing the second torque arm 33. A part of the area of the roof panel 100 is concave upwards to form a middle wave crest 10, and at least one side wall 11 of the middle wave crest 10 is formed with a limiting convex part 126 which protrudes outwards. The first hook 34 can abut against the bottom surface of the stopper protrusion 126.

Specifically, during assembly, the clamping main body 30 is sleeved outside the middle wave crest 10, so that the force bearing arms 31 of the clamping main body 30 are located on the top surface of the middle wave crest 10, the first force holding arm 32 and the second force holding arm 33 are respectively arranged on the left side and the right side of the middle wave crest 10, and the first force holding arm 32 and the second force holding arm 33 can be in contact with the side surface of the middle wave crest 10 or have a small gap. The first click member 34 is located below the limit projection 126 and contacts the bottom surface of the limit projection 126 or has a small interval. When the wind force acts, the first clamping piece 34 can be prevented from moving upwards across the limiting convex part 126 due to the limiting action of the limiting convex part 126 on the first clamping piece 34, and the wind-resisting clamp 301/302 can be clamped with the middle wave crest 10.

The first clamping piece 34 and the first force holding arm 32 can be integrally formed, such as integrally injection-molded, integrally bent, turned and the like; alternatively, the first hook member 34 is provided separately from the first arm 32.

In order to clamp the middle peak 10 by the wind-resistant clip 301/302 and facilitate the wind-resistant clip 301/302 to be smoothly clamped at the outer side of the middle peak 10 downwards, in some embodiments of the present application, one of the inner side surface of the first holding arm 32 and the first clamping piece 34 is provided with a mounting groove 321, and the other one is provided with a mounting protrusion 341 adapted to be inserted into the mounting groove 321. The first force-holding arm 32 is further provided with a yielding hole 322 penetrating through the inner side and the outer side. The pushing member 36 is mounted in the avoiding hole 322, and the pushing member 36 can move relative to the avoiding hole 322 to push and push the first clip 34 inwardly. The inward direction refers to a direction in which the first force holding arm 32 points to the second force holding arm 33, that is, the pushing component 36 can move relative to the receding hole 322 along a direction in which the first force holding arm 32 points to the second force holding arm 33. The mounting protrusion 341 protrudes at least partially from the inner side of the first torque arm 32.

Because the first clamping piece 34 can move, correspondingly, the limiting convex part 126 can not be arranged on the roof panel 100, and the first clamping piece 34 can be directly abutted against the side surface of the middle wave crest 10 when being pushed inwards, so that the wind-resistant clamp 301/302 clamps the middle wave crest 10 at two sides. Of course, when the limit projection 126 is provided, the limit effect on the wind-proof clip 301/302 can be further enhanced.

In the embodiment of the present application, the position-limiting protrusion 126 of the middle wave peak 10 can be formed by the side wall 11 of the position-limiting space 122. Illustratively, the limit projection 126 of the middle wave peak 10 is formed by the side wall 11 of the second limit space 122.

During specific operation, the first clamping piece 34 and the first force holding arm 32 are assembled in place, namely the mounting protrusion 341 is completely embedded into the mounting groove 321, at the moment, the distance between the first clamping piece 34 and the second force holding arm 33 is far, and when the wind-resistant clamp 301/302 is downwards sleeved outside the middle wave crest 10, the interference between the first clamping piece 34 and the limiting convex part 126 is reduced, so that the first clamping piece 34 smoothly downwards crosses the limiting convex part 126 and is positioned below the limiting convex part 126. Then, the pushing part 36 is pushed towards the inner side, the pushing part 36 can drive the first clamping part 34 to move inwards, namely, towards the direction of the second holding arm 33 after contacting with the first clamping part 34, the distance between the first clamping part 34 and the second holding arm 33 is reduced, and the overlapping area between the first clamping part 34 and the limiting convex part 126 is increased, so that when the first clamping part 34 is subjected to wind force to abut against the bottom surface of the limiting convex part 126, the contact area between the first clamping part 34 and the limiting convex part 126 is large, and the first clamping part 34 can be effectively prevented from passing over the limiting convex part 126 upwards. Furthermore, the first catches 34 can be pushed into abutment with the side walls 11 of the central peak 10, thereby better clamping the central peak 10. When the first clamping piece 34 is pushed inwards to a certain position, the abutting piece 36 is locked with the first holding arm 32, so that the first clamping piece 34 is prevented from moving outwards, and the clamping effect of the wind-resisting clamp 301/302 on the centering wave crest 10 is ensured.

In the above description, the pushing element 36 may be a screw or a bolt, and the offset hole 322 is a threaded hole. Or, the pushing member 36 is a push rod, and after the push rod is pushed inward to a proper position, the outer end of the push rod can be locked with the first force-holding arm 32 by a screw. Alternatively, the pushing member 36 may be welded to the first force holding arm 32 after being pushed inward.

In some embodiments, the inner side surface of the first force holding arm 32 is provided with a mounting groove 321, and the receding hole 322 penetrates through the bottom of the mounting groove 321. Optionally, the installation groove 321 extends in a first direction to form an elongated shape, the first direction is perpendicular to the distribution direction of the first force holding arm 32 and the second force holding arm 33, and the first direction is a horizontal direction.

The mounting groove 321 can penetrate through two opposite sides of the first force-holding arm 32 along the first direction, so that the first clip piece 34 can slide into the mounting groove 321 from one side of the first force-holding arm 32 along the first direction for clamping when assembling. Optionally, two sides of the first jaw 34 in the first direction are correspondingly aligned with two sides of the first torque arm 32 in the first direction, i.e. the lengths of the two in the first direction are equal.

Further, the first force holding arm 32 is provided with a plurality of yielding holes 322, the plurality of yielding holes 322 are arranged at intervals along the first direction, and one abutting piece 36 is correspondingly arranged in each yielding hole 322, so that a plurality of abutting positions can be formed in the length direction of the first clamping piece 34, and the stress of the first clamping piece 34 is more balanced.

The cross-section of the mounting groove 321 may be square, rectangular, semicircular, etc.

Furthermore, a second clamping piece 35 is further arranged on the inner side surface of the second force holding arm 33 in a protruding mode, and the second clamping piece 35 and the second force holding arm 33 are arranged in a split mode or are integrally formed. Correspondingly, the two opposite side walls 11 of the middle wave crest 10 are respectively provided with a limit convex part 126, the first clamping piece 34 can be abutted with the bottom surface of one limit convex part 126, and the second clamping piece 35 of the wind-resistant clamp 301/302 can be abutted with the bottom surface of the other limit convex part 126. The first clamping piece 34 and the second clamping piece 35 can limit the position of the limiting convex part 126 on two opposite sides of the middle wave crest 10, so that double-side limiting is realized, and the clamping effect is improved.

The connection between the second jaw 35 and the second arm 33 can be the same as the connection between the first jaw 34 and the first arm 32, i.e. the second jaw 35 is pushed by the pushing member 36. Of course, the second clip member 35 can be fixed relative to the second arm 33 without relative movement.

In some embodiments, a fixing groove 331 is formed on an inner side surface of the second force-holding arm 33, the second clip 35 includes a fixing protrusion 351 and a limiting protrusion 352, the fixing protrusion 351 is adapted to be inserted into the fixing groove 331, and the limiting protrusion 352 protrudes from the inner side surface of the second force-holding arm 33 to abut against a bottom surface of the limiting protrusion 126 of the middle wave peak 10. Alternatively, the fixing recess 331 is a dovetail groove, and the fixing projection 351 is fitted to the dovetail groove, so that the second catches 35 can be prevented from being disengaged from the notches of the dovetail groove. In other embodiments, the fixing recess 331 may also be a T-shaped groove, a circular groove, an elliptical groove, an irregular groove, etc.

The fixing recess 331 can penetrate through two opposite sides of the second force-holding arm 33 along the first direction, so that the second clip 35 can slide into the fixing recess 331 along the first direction from one side of the second force-holding arm 33 for clipping when assembling. Optionally, two sides of the second jaw member 35 along the first direction are correspondingly aligned with two sides of the second force-holding arm 33 along the first direction, that is, the lengths of the two sides along the first direction are equal.

The stop projection 352 of the second escapement 35 can be semicircular or nearly semicircular. For example, the surface of the limiting protrusion 352 on the side away from the fixing protrusion 351 is formed by connecting a straight wall and a circular wall which are bent in a multi-section manner in sequence. Fig. 41 to 46 show different shapes of the first card member 34a, the first card member 34b, the first card member 34c, the second card member 35a, the second card member 35b, the second card member 35c.

Likewise, the first clip member 34 further includes an abutting projection 342, the abutting projection 342 is connected with the mounting projection 341 of the first clip member 34, and the abutting projection 342 may be semicircular or nearly semicircular. For example, the surface of the abutting protrusion 342 facing away from the mounting protrusion 341 is formed by connecting a straight wall and a circular wall, which are bent in a multi-section manner, in sequence.

Optionally, the shape of the limiting protrusion 352 and the abutting protrusion 342 are matched with the wave shape of the middle wave 10 at the limiting protrusion 126, so that the limiting protrusion 352 and the abutting protrusion 342 are better fitted to the lower side of the limiting protrusion 126.

In the above, two ends of the bearing arm 31 are correspondingly connected with the first force-holding arm 32 and the second force-holding arm 33, the first clip piece 34 and the second clip piece 35 are located at one end of the clamping main body 30 far from the bearing arm 31, that is, the first clip piece 34 and the second clip piece 35 are located at the lower end of the clamping main body 30.

The clamping body 30 of the wind-resistant clamp 301/302 in the embodiment of the present application is of an integrated structure, that is, the force-bearing arm 31, the first force-bearing arm 32 and the second force-bearing arm 33 are of an integrated structure, for example, are formed by integrally bending a metal material. A first clamping piece 34 and a second clamping piece 35 are respectively arranged at the lower end of the meshing position (the position of a first limiting space 122) of the roof panel 100, namely, the two sides of the first relative displacement and the deformation part of the roof panel 100 under the wind-resistant working condition are firstly formed, wherein the second clamping piece 35 at one side is a fixed position, the first clamping piece 34 at the other side can be horizontally pushed by a pushing piece 36 like a jackscrew, the first clamping piece 34 and the second clamping piece 35 at the two sides are clamped on the two opposite sides of the middle wave crest 10 through the acting force of the jackscrew, the roof panel 100 and the middle bracket 200 are clamped, the relative displacement of the roof panel 100 and the middle bracket 200 is limited, the roof panel 100 is prevented from being deformed, meanwhile, the first clamping piece 34 and the second clamping piece 35 at the two sides are protruded on the inner side face of the clamping main body 30, the formed protrusion is complementary with the section of the middle wave crest 10 of the roof panel 100, namely, an effective contact face is formed with the limiting convex part 126 of the middle wave crest 10, the limiting effect is realized, and the upward acting force generated on the roof panel 100 by negative wind pressure is counteracted. Under the comprehensive action, the wind-resistant clips 301/302 can effectively improve the wind-resistant capability of the occlusion position.

In the embodiment of the present application, the shape of the clamping body 30 is various, and as shown in fig. 36, for example, the first force holding arm 32 and the second force holding arm 33 extend in a vertical direction, so that the clamping body 30 may have an inverted U shape. Or, as shown in fig. 45, 47 and 61, the first force holding arm 32 and the second force holding arm 33 both include an inclined section and a vertical section, the upper end of the inclined section is connected with the force bearing arm 31, the lower end of the inclined section is connected with the vertical section, and the inclined section extends downward and outward in an inclined manner, so that the distance between the upper ends of the inclined sections of the first force holding arm 32 and the second force holding arm 33 is relatively small, and the distance between the lower ends of the two inclined sections is relatively large. A first catch 34 and a second catch 35 are provided at the vertical section.

Referring to fig. 35 and 36, when the photovoltaic panel 70 is disposed on the roof panel 100, in order to further fix the photovoltaic panel 70 and prevent the photovoltaic panel 70 from being uncovered by wind, the wind-resistant clip 301/302 is further disposed with a crimping component 401/402, the crimping component 401/402 is provided with a crimping edge 412, the crimping edge 412 protrudes laterally from the first force-holding arm 32 and/or the second force-holding arm 33, and the crimping edge 412 is configured to abut against the upper surface of the photovoltaic panel 70, so that the photovoltaic panel 70 is clamped between the crimping edge 412 and the bearing surface 133.

The crimping assembly 401/402 may be provided with two crimping edges 412, wherein one crimping edge 412 projects laterally beyond the first tension arm 32 and the other crimping edge 412 projects laterally beyond the second tension arm 33.

The crimping assemblies 401/402 and the wind-resistant clips 301/302 can be connected in various ways, and in some embodiments, the force-bearing arm 31 is provided with a screw hole 313. Alternatively, the screw hole 313 is disposed on the second surface 312 and may penetrate downward through the first surface 311. Alternatively, the screw holes 313 are blind holes and do not penetrate through the first surface 311 downward. By providing the screw hole 313, a bolt or a screw may be installed in the screw hole 313 to install other members such as the pressing block 41.

Specifically, the crimping assembly 401/402 comprises a pressing block 41 and a fastening member 42a/42b, the pressing block 41 is located on the upper side of the wind-resistant clamp 301/302, the two opposite sides of the pressing block 41 are respectively provided with a crimping edge 412, the pressing block 41 is provided with a through hole 411, the fastening member 42a/42b passes through the through hole 411 and is locked to the screw hole 313 of the wind-resistant clamp 301/302, and therefore the pressing block 41 and the wind-resistant clamp 301/302 are relatively fixed.

The pressing block 41 has various shapes, please refer to fig. 62 and fig. 63 in combination, optionally, the pressing block 41 includes a first section 413, two second sections 414 and two pressing edges 412, the first section 413 is provided with a through hole 411, the second section 414 extends along the up-down direction, the upper end of the second section 414 is connected with the first section 413, and the two second sections 414 are respectively connected with the two end portions of the first section 413; the lower end of each second section 414 is provided with a crimping edge 412, the crimping edge 412 extending outwardly, i.e. away from the other second section 414. The first segment 413 is located on the top surface (i.e., the second surface 312) of the force bearing arm 31, and the two second segments 414 are respectively located on two opposite sides of the wind-resistant clip 301/302. Wherein, as shown in fig. 62, the second segment 414 may extend in a vertical direction; alternatively, as shown in fig. 63, the two second segments 414 gradually extend away from each other in the upward-downward direction.

By adjusting the depth of the fasteners 42a/42b on the screw holes 313 of the wind-resistant clips 301/302, the height of the pressing block 41, i.e. the abutment of the crimping edge 412 with the photovoltaic panel 70, can be adjusted.

Referring to fig. 48 to 52, in some embodiments, the force-bearing arm 31 has a rail cavity 314, the rail cavity 314 extends along a first direction, the rail cavity 314 is used for slidably mounting the press connection assembly 401/402, and the press connection assembly 401/402 is slidably connected with the rail cavity 314 so as to be capable of sliding along the first direction, and the first direction is perpendicular to the distribution direction of the first surface 311 and the second surface 312. In some examples, the first direction is a horizontal direction. Optionally, the first direction is also perpendicular to the distribution direction of the first and

second torque arms

32, 33.

Further, rail cavity 314 has an offset opening 315 extending through second surface 312, and rail cavity 314 has a maximum width that is greater than a width of offset opening 315, such that offset opening 315 is smaller to limit crimping assembly 401/402 from exiting rail cavity 314 in a direction toward offset opening 315, i.e., upward.

Further, the guide rail cavity 314 also extends through the opposite sides of the outrigger 31 in the first direction. When assembled, crimp assembly 401/402 can be slid into rail cavity 314 from openings 123 at either end of rail cavity 314, thereby facilitating mating of crimp assembly 401/402 with rail cavity 314. The fasteners 42a/42b of the crimp assemblies 401/402 extend upwardly out of the offset openings 315 of the rail cavity 314, while the lower ends of the fasteners 42a/42b are shaped to fit within the rail cavity 314 to limit upward removal of the fasteners 42a/42b from the rail cavity 314.

Optionally, the guide rail cavity 314 is in a cavity shape with a wide middle part and narrow ends in the direction of the abdicating opening 315. Illustratively, the rail cavity 314 is "in" shape. In other embodiments, the shape of the rail cavity 314 may include, but is not limited to, an inverted T shape, a dovetail shape, a trapezoid shape, etc., as long as the offset opening 315 is narrower and at least a portion of the area within the rail cavity 314 is wider.

In the embodiment of the present application, the crimping assembly 401/402 includes a pressing block 41 and a fastening member 42a/42b, the pressing block 41 is provided with a through hole 411, and the fastening member 42a/42b passes through the through hole 411 and is slidably connected with the guide rail cavity 314. Please refer to the above embodiment for the specific structure of the pressing block 41, which is not described herein again.

The fastener 42a/42b comprises a stop bulge 421, a matching column 422 and a limit nut 423, the stop bulge 421 is arranged at one end of the matching column 422 and can be abutted against one side of the pressing block 41 departing from the bearing arm 31, the matching column 422 penetrates through the through hole 411 and extends into the guide rail cavity 314, the limit nut 423 is locked on the matching column 422 and is located in the guide rail cavity 314, and the diameter of the limit nut 423 is larger than the width of the yielding opening 315 of the guide rail cavity 314. In this way, the stopper nut 423 can be restricted from being separated upward from the rail cavity 314 by abutting against one of the laterally extending and downward facing cavity walls of the rail cavity 314.

During assembly, fasteners 42a/42b are assembled with press block 41 to form crimping assembly 401/402, and finally crimping assembly 401/402 is slid into rail cavity 314.

Of course, in other embodiments, the fastening member 42a/42b may be a unitary structure integrally formed with the mating post 422 with two stop protrusions 421, wherein one of the stop protrusions 421 serves as the middle stop nut 423.

Furthermore, in other embodiments, the pressing block 41 and the fastening members 42a/42b may be integrally formed, that is, a matching column 422 extends from the lower surface of the pressing block 41, and a protrusion is disposed at the lower end of the matching column 422 and extends into the concave guide cavity 314.

It should be noted that the wind-resistant clips 301/302 in the embodiment of the present application are applicable not only to the roof panels 100 described above, but also to other types of roof panels 100. Referring to fig. 37 to 46 and 56 to 60, the wind-resisting clip 301/302 is suitable for different types of middle wave crests 10.

Referring to the above embodiment, please refer to the middle peak 10 shown in fig. 37, 38 and 56, which is not described herein again. As shown in fig. 39, 40 and 57, the stopper section 12 of the middle wave peak 10a is substantially circular, and the upper end of the middle bracket 200a is substantially circular. As shown in fig. 41, 42 and 58, the stopper section 12 of the middle wave peak 10b is substantially elliptical, and the upper end of the middle bracket 200b is substantially elliptical. As shown in fig. 43, 44 and 59, the stopper section 12 of the middle peak 10c has a substantially diamond shape, and the upper end of the middle bracket 200c has a substantially diamond shape. As shown in fig. 45, 46 and 60, the stop segment 12 of the middle wave peak 10d is generally hexagonal, and the upper end of the middle bracket 200d is generally hexagonal. Alternatively, the limiting section 12 of the middle wave peak 10 is substantially in the shape of an inverted triangle, and the upper end of the middle bracket 200 is substantially in the shape of an inverted triangle.

Further, the wind-resisting clips 301/302 may be disposed on the locking structure 17, and clip on two opposite sides of the locking structure 17.

The embodiment of the present application further provides a wind-resistant clip assembly, where the wind-resistant clip assembly includes a wind-resistant clip 301/302 and a crimping assembly 401/402, and the structures of the wind-resistant clip 301/302 and the crimping assembly 401/402 are please refer to the above embodiments, and are not described herein again.

The embodiment of the present application further provides a photovoltaic-integratable roof system, which includes a roof panel 100, a wind-resistant clip 301/302, and a photovoltaic panel 70, where please refer to the above embodiment for the structures of the roof panel 100, the wind-resistant clip 301/302, and the photovoltaic panel 70, which is not described herein again.

Further, the roofing system may further include a crimping assembly 401/402, and similarly, the detailed structure of the crimping assembly 401/402 is also referred to in the above embodiments, and is not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A wind clip, comprising:

a first clip member;

the clamping main body comprises a first force holding arm and a second force holding arm which are arranged at intervals, one of the inner side surface of the first force holding arm and the first clamping piece is provided with an installation groove, the other one of the inner side surface of the first force holding arm and the first clamping piece is provided with an installation bulge matched and inserted with the installation groove, at least part of the installation bulge protrudes out of the inner side surface of the first force holding arm, and the first force holding arm is also provided with a abdicating hole penetrating through the inner side surface and the outer side surface of the first force holding arm; and (c) a second step of,

2. The wind clip of claim 1, wherein the mounting groove is formed on an inner side surface of the first force holding arm, and the abdicating hole penetrates through a groove bottom of the mounting groove.

3. The wind-resistant clip of claim 1, wherein the relief hole is a threaded hole and the pushing member is a screw or a bolt.

4. The wind-resistant clip as claimed in claim 1, wherein a second clip is further protruded from an inner side surface of the second force-holding arm, and the second clip and the second force-holding arm are separately arranged or integrally formed.

5. The wind-resistant clip as claimed in claim 4, wherein a fixing groove is formed on the inner side surface of the second force-holding arm, the second clip member includes a fixing protrusion and a limiting protrusion, the fixing protrusion is adapted to the fixing groove and is inserted into the fixing groove, and the limiting protrusion protrudes from the inner side surface of the second force-holding arm.

6. The wind clip of claim 5, wherein the securing recess is a dovetail groove, and the securing protrusion is fitted into the dovetail groove.

7. The wind-resistant clip of claim 4, wherein the clamping body further comprises a force-bearing arm, two ends of the force-bearing arm are correspondingly connected with the first force-bearing arm and the second force-bearing arm, and the first clip piece and the second clip piece are located at one end of the clamping body far away from the force-bearing arm; the bearing arm is provided with a screw hole.

8. A wind clip assembly, comprising:

the wind-resistant clip of any one of claims 1-6; and (c) a second step of,

a crimping assembly connected with the wind-resistant clip; the crimping assembly is provided with a crimping edge, the crimping edge protrudes out of the first force holding arm and/or the second force holding arm in the lateral direction, and the crimping edge is used for abutting against the upper surface of the photovoltaic panel.

9. The wind-resistant clip assembly of claim 8, wherein the crimping assembly comprises a pressing block and a fastening member, the pressing block is located on the upper side of the wind-resistant clip, the pressing block is provided with the crimping edges on two opposite sides, the pressing block is provided with a through hole, and the fastening member passes through the through hole and is locked in the screw hole of the wind-resistant clip.

10. A roof panel assembly, comprising:

the roof panel is characterized in that part of the area of the roof panel is upwards sunken to form a middle wave crest; and the number of the first and second groups,

the wind-resistant clip according to any one of claims 1 to 7 or the wind-resistant clip assembly according to claim 8 or 9, wherein the wind-resistant clip is disposed on the middle wave crest, the first and second force-holding arms are respectively disposed on two opposite sides of the middle wave crest, and the first clip member can abut against the side surface of the middle wave crest.

11. A roof panel assembly according to claim 10, characterised in that at least one side wall of the central peak is formed with an outwardly projecting stop protrusion, the first clip being adapted to abut against a bottom surface of the stop protrusion.

12. A roof panel assembly according to claim 11, characterised in that the two opposite side walls of the central peak are provided with said limiting protrusions, respectively, the first clip being adapted to abut against the bottom surface of one of said limiting protrusions, and the second clip of the wind-resistant clip being adapted to abut against the bottom surface of the other of said limiting protrusions.

13. A roofing system, comprising:

a roof panel assembly according to any one of claims 10-12, said roof panel assembly comprising at least two roof panels, opposite sides of said roof panels being provided with respective connecting lockstitching, the connecting lockstitching of one said roof panel being adapted to connect with the connecting lockstitching of another adjacent said roof panel, said roof panels having a load-bearing surface, said load-bearing surface being higher than the highest point of said connecting lockstitching; and the number of the first and second groups,

and the photovoltaic panel is lapped on the bearing surface and is positioned above the connecting lock edge.