Clamp and photovoltaic bracket using the same

Abstract

The present invention relates to a clamp and a photovoltaic bracket using the clamp, and belongs to the technical field of photovoltaic modules. The clamp is formed by fastening a first clamp and a second clamp by a first fastener, and a reinforcement part forming a triangular support structure is provided on the clamp. The strength of the clamp described in the present application is improved compared with the prior art, and the wind load capacity of the photovoltaic bracket using the clamp is enhanced, and it is more reliable to use.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic components, and in particular to a clamp and a photovoltaic bracket using the clamp. Background Art

[0002] Aluminum alloy brackets for photovoltaic bracket systems on steel structure roofs have become a mainstream application in the solar industry.

[0003] The existing rooftop photovoltaic support system is to add a layer of aluminum alloy support on the original steel structure roof, and use the support to form a new structural system above the roof structure system, and use the new structural system to install photovoltaic modules.

[0004] However, it has high requirements on the original plant structure. In particular, when the load is not met, the original structure needs to be renovated, which is not conducive to the promotion of photovoltaic power stations. Statistics show that about 30% of houses cannot be installed with photovoltaic systems because the load does not meet the requirements. Most of these houses that do not meet the requirements are because the roof cannot bear the additional load of traditional brackets.

[0005] The prior art has made improvements to this structure. For example, the Chinese utility model patent with the authorization announcement number CN 208777587 U discloses a photovoltaic bracket for a color steel tile roof, including several clamps and a pressure block group. Each clamp includes a main support plate and a secondary support plate that are detachably connected. The main support plate and the secondary support plate cooperate to clamp the protrusions on the color steel tile. The top of the main support plate is fixed with a guide rail for fixing the pressure block group. The pressure block group includes a middle pressure block and a side pressure block. A middle pressure block or a side pressure block is placed on each guide rail. The middle pressure block is located between two adjacent photovoltaic panels and is used to press the photovoltaic panels. The side pressure block is located at the edge of the outermost photovoltaic panel and is used to press the photovoltaic panel. With the cooperation of the clamp and the pressure block group, the material used for the guide rail is reduced, and the purpose of reducing costs is achieved.

[0006] However, the strength of the clamp in the prior art is still insufficient and there is room for further optimization. Summary of the invention

[0007] In view of the above problems, the present invention is researched and developed with the main purpose of providing a high-strength clamp and a photovoltaic bracket using the clamp. The strength of the clamp is improved, so that the wind load capacity of the corresponding photovoltaic bracket is enhanced, and it is more reliable to use.

[0008] The technical solution of the present invention to solve the above problems is as follows:

[0009] The fixture includes the following parts:

[0010] A first clamping piece, on which a first mounting hole is provided, a first limiting portion is provided on one side of the first mounting hole, and a first clamping portion for clamping the protruding structure is provided on the other side;

[0011] The raised structure is the protruding part on the roof, mainly referring to the raised structure on the color steel tile roof;

[0012] A second clip having a second mounting hole, wherein a first fastener fastens the first clip and the second clip through the first mounting hole and the second mounting hole;

[0013] A second limiting portion and a connecting guide rail are provided on one side of the second mounting hole, and a second clamping portion for clamping the protruding structure is provided on the other side;

[0014] Wherein, the second limiting portion comprises a limiting protrusion, and when the first clamping piece and the second clamping piece are clamped, the limiting protrusion is engaged with the first limiting portion;

[0015] The connecting rail is located at one end of the second clip away from the second clamping portion, and the connecting rail is composed of adjacently arranged connecting grooves and reinforcement portions;

[0016] Among them, the connecting groove is located at the end of the second clip, which is used to connect the second fastener. The reinforcement part is composed of two inclined plates and a supporting plate. One ends of the two inclined plates are fixedly connected, and the two ends of the supporting plate are respectively fixedly connected to the other ends of the two inclined plates.

[0017] Two inclined plates and one supporting plate form a triangular or triangular-like supporting structure. This structure can effectively improve the strength of the clamp itself, thereby improving the wind load capacity of the corresponding photovoltaic bracket, making it more reliable when used.

[0018] As a preferred embodiment of the above technical solution, the first clip and the second clip are both integrally formed parts.

[0019] As a preferred embodiment of the above technical solution, the inner wall connection of the two inclined plate members fixedly connected and the inner wall connection of the two inclined plate members and the supporting plate member fixedly connected are both configured as rounded corners.

[0020] Rounded corners are more conducive to dispersing external forces and internal stress of the material, avoiding material cracking due to stress concentration.

[0021] As a preferred embodiment of the above technical solution, an opening for protruding the second fastener is formed on the connecting groove, and limiting convex strips for limiting the second fastener are arranged on both sides of the opening.

[0022] As a preferred embodiment of the above technical solution, the support plate is arranged at a side wall of the connecting groove, and the side wall is arranged opposite to the opening.

[0023] As a preferred embodiment of the above technical solution, the first limiting portion and the limiting protrusion are both convex ridges.

[0024] As a preferred embodiment of the above technical solution, a limiting groove is further provided adjacent to the limiting protrusion, and an end portion of the first limiting portion is snapped into the limiting groove.

[0025] The end of the first limiting portion is clamped in the limiting groove, so that the first clamp and the second clamp have a resistance to different forces in the upper and lower directions, that is, a resistance to the misaligned deformation between the first clamp and the second clamp. Before the present application, the relevant clamp was close to the first fastener to resist the misaligned deformation, which could easily lead to the loosening of the first fastener over time, thereby reducing the strength of the clamp.

[0026] As a preferred embodiment of the above technical solution, the first fastener is a matching structural member of a bolt and a nut.

[0027] As a preferred embodiment of the above technical solution, the second fastener is a matching fastener of a T-bolt and a nut.

[0028] As a preferred embodiment of the above technical solution, the second fastener is a bolt, the bolt head of which is installed in the connecting groove, and the two limiting convex strips are each provided with a first force dispersing portion on one side facing the bolt head, and correspondingly, the bolt head is provided with a second force dispersing portion used in conjunction with the first force dispersing portion on one side facing the limiting convex strip.

[0029] A first inclined surface is provided on the first force dispersing portion, and the first inclined surface is inclined downward from the outer side of the lower surface of the limiting convex strip to the stud direction of the second fastener, and the second inclined surface is inclined downward from the outer side of the upper surface of the bolt head to the stud direction of the second fastener. The first inclined surface and the second inclined surface are in contact with each other during use, and their inclinations are the same.

[0030] A photovoltaic support using the clamp described in any one of the above technical solutions.

[0031] In summary, the embodiments of the present application have the following beneficial effects:

[0032] 1) The strength of the clamp described in this application is improved.

[0033] 2) Furthermore, the wind load capacity of the photovoltaic bracket using the clamp is enhanced, and it is more reliable to use.

[0034] 3) Auxiliary, the preferred clamp structure can a. disperse the upward pressure of the bolt head on the limiting protrusion, and disperse the upward pressure into a smaller upward pressure and a part of the combined force that makes the two sides of the connecting groove move inward, so that the force load of the limiting protrusion is reduced and it will not break in windy weather; and b. the combined force that moves inward can make the two sides of the connecting groove firmly cover the second fastener, and the connection strength is higher; at the same time, c. when installing the second fastener, the friction resistance encountered when rotating the nut is also reduced, making the installation more labor-saving and convenient; further, d. cooperate with the support plate, so that it not only forms a triangular support structure with the inclined plate, but also enables the support plate to form a support in the connecting groove, so as to prevent the two sides of the connecting groove from being deformed due to the inward force. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the fixture structure described in an embodiment of the present application;

[0036] Figure 2 for Figure 1 A magnified image of area A;

[0037] Figure 3 for Figure 1 A magnified view of area B;

[0038] Figure 4 This is a partial main structural diagram of the photovoltaic bracket;

[0039] Figure 5 It is a right view structural diagram between two photovoltaic modules of the photovoltaic bracket;

[0040] Figure 6 This is a right view structural diagram of the edge of a photovoltaic module of a photovoltaic bracket;

[0041] Figure 7 This is a schematic diagram of the optimized fixture structure described in the embodiment of the present application;

[0042] Figure 8 for Figure 7 Schematic diagram of the structure of area A;

[0043] In the figure, 1-first clip, 1-1-first mounting hole, 1-2-first limiting part, 1-3-first clamping part, 2-second clip, 2-1-second mounting hole, 2-2-second limiting part, 2-2.1-limiting protrusion, 2-2.2-limiting groove, 2-3-second clamping part, 2-4-connecting guide rail, 2-4.1-connecting groove, 2-4.11-limiting convex strip, 2-4.12-first force dispersing part, 2-4.2-reinforcement part, 2-4.21-inclined plate, 2-4.22-supporting plate, 3-first fastener, 4-second fastener, 4-1-bolt head, 4-1.1-second force dispersing part, 4-2-stud, 5-photovoltaic module, 6-middle pressure block, 7-side pressure block. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The present invention will be described in detail below with reference to the accompanying drawings by way of embodiments.

[0046] Example 1: Fixture, reference Figure 1~Figure 3 , which is formed by fastening an integrally formed first clip 1 and a second clip 2 through a first fastener 3 consisting of bolts and nuts, and the bolts and nuts are fastened through a first mounting hole 1-1 and a second mounting hole 2-1.

[0047] Among them, the first clamping part 1-3 on the first clamping piece 1 and the second clamping part 2-3 on the second clamping piece 2 are clamped on the raised structure of the roof by fastening, and the roof is usually a color steel tile roof. The structure of the first clamping part 1-3 and the second clamping part 2-3 can be adjusted according to the raised structure of the roof.

[0048] The first clamping piece 1 and the second clamping piece 2 are reinforced and limited by the cooperation of the first limiting part 1-2 and the second limiting part 2-2. Specifically, the first clamping part 1-2 is a convex ridge, and the limiting protrusion 2-2.1 of the second limiting part 2-2 is also a convex ridge. The side surfaces of the two convex ridges are mutually engaged to achieve the limitation.

[0049] Preferably, the second limiting portion 2-2 further includes a limiting groove 2-2.2, and the ridges of the first clamping portion 1-2 are simultaneously engaged in the limiting groove 2-2.2, thereby enhancing the ability of the first clamping piece 1 and the second clamping piece 2 to resist shearing.

[0050] A connecting rail 2-4 is provided at one end of the second clamping piece 2 away from the second clamping portion 2-3, and the connecting rail 2-4 is composed of a connecting groove 2-4.1 and a reinforcement portion 2-4.2 arranged adjacently;

[0051] Among them, an opening is formed on the connecting groove 2-4.1, and limiting convex strips 2-4.11 are provided on both sides of the opening for connecting and limiting the second fastener 4 of the T-bolt and nut;

[0052] The reinforcement part 2-4.2 is a triangular support structure composed of two inclined plates 2-4.21 and a support plate 2-4.22 connected end to end. The support plate 2-4.22 is arranged at the side wall opposite to the opening. The inner wall connection of the two inclined plates 2-4.21 fixedly connected and the inner wall connection of the two inclined plates 2-4.21 and the support plate 2-4.22 fixedly connected are both set to rounded corners.

[0053] The triangular support structure can effectively improve the strength of the fixture itself, thereby improving the wind load capacity of the corresponding photovoltaic bracket, making it more reliable when used. Rounded corners are more conducive to the dispersion of external forces and internal stress of the material, avoiding material cracking due to stress concentration.

[0054] refer to Figure 7 and Figure 8 In a preferred embodiment, the second fastener 4 is a bolt, the bolt head 4-1 of the bolt is installed in the connecting groove 2-4.1, and the first force dispersing portion 2-4.12 is provided on the side of the two limiting convex strips 2-4.11 facing the bolt head 4-1, and correspondingly, the second force dispersing portion 4-1.1 used in conjunction with the first force dispersing portion 2-4.12 is provided on the side of the bolt head 4-1 facing the limiting convex strips 2-4.11;

[0055] A first inclined surface is provided on the first force dispersing portion 2-4.12, and the first inclined surface is inclined downward from the outer side of the lower surface of the limiting convex strip 2-4.11 to the direction of the stud 4-2 of the second fastener 4, and the second inclined surface is inclined downward from the outer side of the upper surface of the bolt head 4-1 to the direction of the stud 4-2 of the second fastener 4. The first inclined surface and the second inclined surface are in contact with each other during use, and their inclinations are the same.

[0056] In this preferred embodiment, the first inclined surface and the second inclined surface are inclined so that a part of the upward pressure acting on the lower surface of the limiting convex strip 2-4.11 is dispersed and reduced, which effectively reduces the load of the limiting convex strip 2-4.11 itself, making it less prone to fatigue, more durable and more resistant to strong winds;

[0057] The dispersed upward pressure is converted into a force that brings the two sides of the connection groove 2-4.1 inward, which can prevent the connection groove 2-4.1 and the second fastener 4 from loosening, making the clamp structure more reliable.

[0058] At the same time, since the acting force between the bolt head 4-1 and the limiting convex strip 2-4.11 is dispersed, when the second fastener 4 is installed, the friction resistance of its rotation is also reduced, and the installation is more labor-saving and convenient;

[0059] At this time, the feature of the support plate 2-4.22 supporting both sides described in the previous embodiment can also prevent the deformation problem caused by excessive contraction of the connecting groove 2-4.1.

[0060] This embodiment also includes all photovoltaic brackets using the above-mentioned clamps, refer to Figure 4~Figure 6 , two adjacent photovoltaic modules 5 are connected to the roof through a middle pressure block 6, the edge of one photovoltaic module 5 is connected to the roof through a side pressure block 7, the photovoltaic module 5 is connected to the upper surface of the clamp through a lightning protection gasket, and the inner side walls of the first clamping part 1-3 and the second clamping part 2-3 are provided with lightning protection spikes, and are connected to the raised structure of the roof through the lightning protection spikes;

[0061] The lightning protection gasket and lightning protection spike can pierce the oxide layer of the connection surface, making the roof and the bracket have the same electrical potential, forming a lightning protection whole and achieving a lightning protection effect;

[0062] Among them, the middle pressure block 6 and the side pressure block 7 are connected to the roof through the clamp described in the above embodiment, one end of the clamp is connected to the middle pressure block 6 and the side pressure block 7 through the second fastener 4, and the other end clamps the raised structure of the roof through the first clamping part 1-3 and the second clamping part 2-3, and the roof is usually a color steel tile roof.

[0063] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A fixture, characterized in that, Contains the following parts: A first clamping piece (1) is provided with a first mounting hole (1-1), a first limiting portion (1-2) is provided on one side of the first mounting hole (1-1), and a first clamping portion (1-3) for clamping the protruding structure is provided on the other side; A second clip (2) having a second mounting hole (2-1) disposed thereon, wherein a first fastener (3) fastens the first clip (1) and the second clip (2) via the first mounting hole (1-1) and the second mounting hole (2-1); A second limiting portion (2-2) and a connecting guide rail (2-4) are provided on one side of the second mounting hole (2-1), and a second clamping portion (2-3) for clamping the protruding structure is provided on the other side; Wherein, the second limiting portion (2-2) comprises a limiting protrusion (2-2.1), and when the first clamping piece (1) and the second clamping piece (2) are clamped, the limiting protrusion (2-2.1) is engaged with the first limiting portion (1-2); The connecting guide rail (2-4) is located at an end of the second clamping piece (2) away from the second clamping portion (2-3), and the connecting guide rail (2-4) is composed of adjacently arranged connecting grooves (2-4.1) and a reinforcement portion (2-4.2); The connecting groove (2-4.1) is located at the end of the second clip (2) and is used to connect the second fastener (4); the reinforcing portion (2-4.2) is composed of two inclined plate members (2-4.21) and a supporting plate member (2-4.22); one ends of the two inclined plate members (2-4.21) are fixedly connected, and both ends of the supporting plate member (2-4.22) are respectively fixedly connected to the other ends of the two inclined plate members (2-4.21); The connecting groove (2-4.1) is provided with an opening for protruding the second fastener (4), and two sides of the opening are provided with limiting convex strips (2-4.11) for limiting the position of the second fastener (4); The first limiting portion (1-2) and the limiting protrusion (2-2.1) are both convex ridges.

2. The clamp according to claim 1, characterized in that: The first clamping piece (1) and the second clamping piece (2) are both integrally formed parts.

3. The clamp according to claim 1, characterized in that: The inner wall connection of the two inclined plate members (2-4.21) where the two inclined plate members (2-4.21) are fixedly connected, and the inner wall connection of the two inclined plate members (2-4.21) where the two supporting plate members (2-4.22) are fixedly connected are both configured as rounded corners.

4. The clamp according to claim 1, characterized in that: The supporting plate (2-4.22) is arranged on a side wall of the connecting groove (2-4.1), and the side wall is arranged opposite to the opening.

5. The clamp according to claim 1, characterized in that: A limiting groove (2-2.2) is also provided adjacent to the limiting protrusion (2-2.1), and the end of the first limiting portion (1-2) is snap-fitted into the limiting groove (2-2.2).

6. The clamp according to claim 1, characterized in that: The first fastener (3) is a matching structural component of a bolt and a nut.

7. The clamp according to claim 1, characterized in that: The second fastener (4) is a matching fastener of a T-bolt and a nut.

8. Photovoltaic bracket, characterized by: Use the clamp described in any one of claims 1 to 7.

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