High-strength lightweight composite material photovoltaic support

Abstract

The utility model provides a high-strength lightweight composite material photovoltaic support, and relates to the technical field of photovoltaic supports, and the photovoltaic support comprises an oblique beam, a supporting member, and a sliding connecting piece. The bottom ends of the supporting components are installed on a ground foundation, sliding connecting pieces are hinged to the top ends of the supporting components, and the supporting components are connected with the oblique beams through the sliding connecting pieces and used for supporting the oblique beams. The upper end of the sliding connecting piece is provided with a first groove, the top of the first groove is provided with a first bolt, the first bolt penetrates through two vertical edges of the first groove and is used for adjusting the tightness degree of the two vertical edges of the first groove, and during installation, the oblique beam is placed in the first groove, the two vertical edges of the first groove inwards clamp the oblique beam by screwing the first bolt, and the oblique beam is clamped by the two vertical edges of the first groove. The base is fixedly connected with the oblique beam through friction force; the high-strength lightweight composite material photovoltaic support is made of a composite material. The high-strength lightweight composite material photovoltaic support provided by the utility model has the advantages of corrosion resistance, high strength, light weight, long service life and convenient installation.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic brackets, in particular to a high-strength and lightweight composite material photovoltaic bracket. Background Art

[0002] Photovoltaic mounts, also known as solar photovoltaic mounts, are primarily used to position, install, and secure solar panels in a solar photovoltaic power generation system. Solar photovoltaic mounts and their accessories are crucial components of a solar photovoltaic power generation system, and their quality can impact the system's efficiency.

[0003] Existing solar photovoltaic brackets are typically made of metal materials, which are weak, heavy, and prone to corrosion. This results in a short service life for these brackets. Performance degradation is particularly pronounced when used in areas with severe corrosion. The components of existing solar photovoltaic brackets are typically connected via threads, making installation cumbersome and requiring drilling at specific connection points. This drilling can damage the components, resulting in the low strength of existing solar photovoltaic brackets. Utility Model Content

[0004] The purpose of the present invention is to provide a high-strength and lightweight composite material photovoltaic bracket to solve at least one of the above-mentioned technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the utility model provides a high-strength and lightweight composite material photovoltaic bracket, comprising: an inclined beam, a supporting member and a sliding connector;

[0006] The bottom ends of the plurality of support members are installed on the ground foundation, and the top ends are hinged with the sliding connection members, and are connected to the inclined beams through the sliding connection members, so as to support the inclined beams;

[0007] The upper end of the sliding connection is provided with a first groove for mounting the oblique beam;

[0008] A first bolt is installed at the top of the first groove. The first bolt passes through the two vertical sides of the first groove and is used to adjust the tightness of the two vertical sides of the first groove. During installation, the inclined beam is placed in the first groove, and the first bolt is tightened so that the two vertical sides of the first groove clamp the inclined beam inward, and the inclined beam is fixedly connected to the inclined beam by friction. Then, the top end of the supporting member is fixedly connected to the inclined beam through the sliding connection piece.

[0009] The high-strength and lightweight composite material photovoltaic bracket is made of composite material, is corrosion-resistant, has high strength, and has a density one-fourth of that of an existing photovoltaic bracket made of galvanized steel. It is light in weight and has a long service life.

[0010] The present application fixes the support member and the inclined beam by hingedly sliding connectors on the support member, which makes installation easy, reduces the number of holes punched on the inclined beam, thereby reducing damage to the inclined beam and improving the strength of the high-strength and lightweight composite material photovoltaic bracket; the high-strength and lightweight composite material photovoltaic bracket is made of composite materials, which is corrosion-resistant, high-strength, light-weight and has a long service life.

[0011] Furthermore, the high-strength and lightweight composite material photovoltaic support further comprises a plurality of purlins, which are transversely mounted on the plurality of inclined beams for mounting solar cell panels.

[0012] Preferably, the solar cell panels are fixed on the purlins via a plurality of pressing blocks.

[0013] Furthermore, the high-strength and lightweight composite material photovoltaic support further includes a ground foundation connection piece;

[0014] The ground foundation connector includes a base and a triangular connector, and the bottom ends of several supporting members are installed on the ground foundation through the base or the triangular connector.

[0015] Furthermore, the bottoms of the base and the triangular connector are both provided with bolt holes for inserting bolt heads preset on the ground foundation, and the base and the triangular connector are both fixed to the ground foundation by bolts, and then the bottom ends of the plurality of support members are mounted on the ground foundation through the base or the triangular connector;

[0016] The bolt holes are long holes with a length of 2 to 5 bolt diameters, which are convenient for the bolt heads preset on the ground foundation to penetrate and facilitate installation.

[0017] Furthermore, the support member includes a column, the column is arranged perpendicular to the ground foundation, and the bottom end is installed on the ground foundation through the base;

[0018] The bottom end of the column is fixedly connected to the base by bonding, and is then installed on the ground foundation through the base;

[0019] The columns include a front column and a rear column;

[0020] The top ends of the front column and the rear column are fixedly connected to the front and rear ends of the oblique beam respectively through the sliding connection parts, so as to support the oblique beam.

[0021] Preferably, a slot is provided on the top of the base, the bottom end of the column is inserted into the slot and bonded to the slot by adhesive, and the shear strength is greater than 20 MPa.

[0022] Preferably, the column is tubular, the cross section of the column may be square or rectangular, and the cross section of the slot is the same as that of the column.

[0023] Preferably, the length of the front pillar is smaller than the length of the rear pillar.

[0024] Furthermore, the support member further comprises an oblique brace, the bottom end of the oblique brace being mounted on a ground foundation via a triangular connector;

[0025] The triangular connector is groove-shaped, and the bottom end of the diagonal brace is inserted into the triangular connector and connected to the two vertical sides of the triangular connector by a bolt. During installation, the inclination angle of the diagonal brace is adjusted according to the inclination angle of the diagonal beam, and the bolt is tightened to fix the bottom end of the diagonal brace to the triangular connector, and then the triangular connector is installed on the ground foundation.

[0026] The diagonal brace includes a front diagonal brace and a rear diagonal brace, which are inclined backward and forward respectively. The top ends of the front diagonal brace and the rear diagonal brace are fixedly connected to the middle of the diagonal beam through the sliding connection member, so as to provide thrust to the middle of the diagonal beam to support the diagonal beam.

[0027] Preferably, the diagonal brace is tubular, and the cross section of the diagonal brace may be square or rectangular.

[0028] Preferably, both vertical sides of the triangular connector are triangles.

[0029] Furthermore, a second groove is provided at the lower end of the sliding connector, and the top end of the supporting member is passed through the second groove and connected to the two vertical sides of the second groove by a second bolt; during installation, the sliding connector is moved to the installation position, and the angle of the sliding connector is adjusted according to the inclination angle of the inclined beam, and the second bolt is tightened to fix the sliding connector to the top end of the supporting member, and then the first bolt is tightened to fix the sliding connector to the inclined beam, and then the top end of the supporting member is fixedly connected to the inclined beam through the sliding connector.

[0030] Preferably, both vertical sides of the second groove are triangular.

[0031] Furthermore, the bottom of the purlin is fixedly connected to the oblique beam by bolts.

[0032] Preferably, the oblique beam is provided with a plurality of through holes, and round tubes are provided in the through holes. When installing the purlin, bolts pass through the bottom of the purlin and the round tubes, and the purlin is installed on the oblique beam by the bolts.

[0033] By arranging the round tube in the through hole, the friction damage of the bolt to the inclined beam is reduced. At the same time, the round tube shares a part of the extrusion force of the nut, reducing the extrusion of the nut on the inclined beam, thereby reducing the damage to the inclined beam.

[0034] Preferably, the wall thickness of the circular tube is 2-4 mm.

[0035] Furthermore, the composite material is composed of reinforcing fibers and a matrix resin;

[0036] The reinforcing fiber can be glass fiber or basalt fiber;

[0037] The matrix resin may be vinyl resin, epoxy resin or polyurethane resin.

[0038] Preferably, the oblique beams, the purlins, the front columns, the rear columns, the front diagonal braces and the rear diagonal braces are composite pultrusion products, composed of axially reinforcing fibers and matrix resin, with a glass transition temperature of 110°C to 200°C, a tensile strength greater than 600MPa, and a bending strength greater than 500MPa.

[0039] Preferably, the sliding connector, the base and the triangular connector are composite material molded products.

[0040] By adopting the above technical solution, the utility model has the following beneficial effects:

[0041] The utility model provides a high-strength and lightweight composite material photovoltaic bracket, which is corrosion-resistant, high-strength, light-weight, long-lasting, and easy to install. It reduces the number of holes punched on the inclined beam, thereby reducing damage to the inclined beam and improving the strength of the high-strength and lightweight composite material photovoltaic bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 A front view of a high-strength, lightweight composite photovoltaic bracket provided by an embodiment of the present utility model;

[0044] Figure 2 for Figure 1 A partial enlarged view of point A shown;

[0045] Figure 3 for Figure 1 A front view of the sliding connection is shown;

[0046] Figure 4 for Figure 3 a left side view of the sliding connection shown;

[0047] Figure 5 for Figure 1 a cross-sectional view of the base shown;

[0048] Figure 6 for Figure 5 A top view of the base is shown;

[0049] Figure 7 for Figure 1 A front view of the triangular connector shown;

[0050] Figure 8 for Figure 7 A top view of the triangular connector shown;

[0051] Figure 9 for Figure 7 A left side view of the triangular connector shown;

[0052] Figure 10 A partial top view of an inclined beam of a high-strength and lightweight composite material photovoltaic support provided in another embodiment of the present invention.

[0053] Reference numerals:

[0054] 1-base; 11-slot; 12-bolt hole; 2-triangular connector; 3-rear column; 4-rear diagonal brace; 5-sliding connector; 51-first groove; 511-first bolt; 52-second groove; 521-second bolt; 6-oblique beam; 61-through hole; 611-round tube; 7-purlin; 71-pressure block; 8-front diagonal brace; 9-front column. DETAILED DESCRIPTION

[0055] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0056] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0058] The present invention will be further explained below in conjunction with specific implementation methods.

[0059] It should also be noted that the following specific embodiments or specific implementation methods are a series of optimized settings listed in the present invention to further explain the specific content of the utility model, and these settings can be combined or used in association with each other.

[0060] Example 1

[0061] like Figure 1-9As shown, the present embodiment provides a high-strength and lightweight composite material photovoltaic bracket, comprising: an inclined beam 6, a supporting member and a sliding connector 5; the bottom ends of several supporting members are installed on the ground foundation, and the top ends are hinged with the sliding connector 5, which is connected to the inclined beam 6 through the sliding connector 5 to support the inclined beam 6; the upper end of the sliding connector 5 is provided with a first groove 51 for installing the inclined beam 6; two first bolts 511 are installed at the top of the first groove 51, and the two first bolts 511 both pass through the two vertical sides of the first groove 51 to adjust the tightness of the two vertical sides of the first groove 51. During installation, the inclined beam 6 is placed in the first groove 51, and the two first bolts 511 are tightened so that the two vertical sides of the first groove 51 clamp the inclined beam 6 inward, and are fixedly connected to the inclined beam 6 by friction, and then the top end of the supporting member is fixedly connected to the inclined beam 6 through the sliding connector 5; the high-strength and lightweight composite material photovoltaic bracket is made of composite material, is corrosion-resistant, has high strength, and has a density that is one-fourth of the existing photovoltaic bracket made of galvanized steel. It is light in weight and has a long service life.

[0062] The present application fixes the support member and the inclined beam 6 by hingedly sliding the connecting piece 5 on the support member, which is convenient for installation, reduces the number of holes punched on the inclined beam 6, thereby reducing damage to the inclined beam 6 and improving the strength of the high-strength and lightweight composite material photovoltaic bracket; the high-strength and lightweight composite material photovoltaic bracket is made of composite material, which is corrosion-resistant, high-strength, light-weight and has a long service life.

[0063] Reference Figure 2 As shown, based on the above technical solution, it is further preferred that the high-strength, lightweight composite photovoltaic support further includes a plurality of purlins 7, which are transversely mounted on the plurality of diagonal beams 6 for mounting solar panels. In this embodiment, the solar panels are fixed to the purlins 7 by a plurality of pressing blocks 71.

[0064] Reference Figure 5-9 As shown, further, the high-strength lightweight composite material photovoltaic bracket also includes a ground foundation connector; the ground foundation connector includes a base 1 and a triangular connector 2, and the bottom ends of several of the supporting members are installed on the ground foundation through the base 1 or the triangular connector 2.

[0065] More preferably, the bottom of the base 1 and the triangular connector 2 are both provided with bolt holes 12 for the penetration of bolt heads preset on the ground foundation. The base 1 and the triangular connector 2 are both fixed to the ground foundation by bolts, and then the bottom ends of several supporting members are installed on the ground foundation through the base 1 or the triangular connector 2; in this embodiment, the bolt hole 12 is a long hole with a length of 2 to 5 bolt diameters, which is convenient for the penetration of bolt heads preset on the ground foundation and convenient installation.

[0066] In this embodiment, the supporting member includes a column, which is arranged perpendicular to the ground foundation, and the bottom end of the column is installed on the ground foundation through the base 1; the bottom end of the column is fixedly connected to the base 1 by bonding, and is further installed on the ground foundation through the base 1; the column includes a front column 9 and a rear column 3; the top ends of the front column 9 and the rear column 3 are fixedly connected to the front and rear ends of the inclined beam 6 respectively through the sliding connection 5, for supporting the inclined beam 6. In a feasible embodiment, a slot 11 is provided at the top of the base 1, and the bottom end of the column is inserted into the slot 11 and bonded to the slot 11 by adhesive, with a shear strength greater than 20Mpa. The column is generally tubular, and the cross-section of the column can be square or rectangular, and the cross-sectional shape of the slot 11 is the same as the cross-sectional shape of the column. In this embodiment, the length of the front column 9 is less than the length of the rear column 3.

[0067] More preferably, the support member further comprises a diagonal brace, the bottom end of which is mounted on the ground foundation via a triangular connector 2; the triangular connector 2 is groove-shaped, the bottom end of the diagonal brace being inserted into the triangular connector 2 and connected to the two vertical sides of the triangular connector 2 via a bolt. During installation, the inclination angle of the diagonal brace is adjusted according to the inclination angle of the diagonal beam 6, and the bolt is tightened to securely connect the bottom end of the diagonal brace to the triangular connector 2, and then the support member is mounted on the ground foundation via the triangular connector 2; the diagonal brace comprises a front diagonal brace 8 and a rear diagonal brace 4, the front diagonal brace 8 and the rear diagonal brace 4 being tilted rearward and forward, respectively, and the top ends of the front diagonal brace 8 and the rear diagonal brace 4 being fixedly connected to the middle of the diagonal beam 6 via the sliding connector 5, for providing thrust to the middle of the diagonal beam 6 to support the diagonal beam 6. The diagonal brace is typically tubular, and the cross-section of the diagonal brace can be square or rectangular. In this embodiment, the two vertical sides of the triangular connector 2 are both triangular.

[0068] Reference Figure 3 、 Figure 4As shown, further, a second groove 52 is provided at the lower end of the sliding connector 5. The top end of the support member is inserted into the second groove 52 and connected to the two vertical sides of the second groove 52 via a second bolt 521. During installation, the sliding connector 5 is moved to the installation position, the angle of the sliding connector 5 is adjusted according to the inclination angle of the inclined beam 6, the second bolt 521 is tightened to fix the sliding connector 5 to the top end of the support member, and then the two first bolts 511 are tightened to securely connect the sliding connector 5 to the inclined beam 6. The top end of the support member is then securely connected to the inclined beam 6 via the sliding connector 5. In this embodiment, the two vertical sides of the second groove 52 are both triangular.

[0069] In this embodiment, the bottom of the purlin 7 is fixedly connected to the oblique beam 6 by bolts.

[0070] More preferably, the composite material is composed of reinforcing fibers and a matrix resin; the reinforcing fibers may be glass fibers or basalt fibers, etc.; and the matrix resin may be vinyl resin, epoxy resin or polyurethane resin, etc.

[0071] Among them, the oblique beam 6, the purlin 7, the front column 9, the rear column 3, the front diagonal brace 8 and the rear diagonal brace 4 are composite material pultrusion products, composed of axial reinforcing fibers and matrix resin, with a glass transition temperature of 110°C~200°C, a tensile strength greater than 600MPa, and a bending strength greater than 500MPa.

[0072] Furthermore, the sliding connector 5, the base 1 and the triangular connector 2 are composite material molded products.

[0073] The utility model fixes the support member and the inclined beam 6 by hingedly sliding the connecting piece 5 on the support member, which is convenient for installation, reduces the number of holes punched on the inclined beam 6, thereby reducing damage to the inclined beam 6 and improving the strength of the high-strength and lightweight composite material photovoltaic bracket; the high-strength and lightweight composite material photovoltaic bracket is made of composite material, which is corrosion-resistant, high-strength, light-weight and has a long service life.

[0074] Example 2

[0075] This embodiment is basically the same as embodiment 1, except that:

[0076] like Figure 10As shown, in this embodiment, the inclined beam 6 is provided with a plurality of through holes 61, each of which contains a circular tube 611. When installing the purlin 7, bolts pass through the bottom of the purlin 7 and the circular tube 611, and the purlin 7 is fixed to the inclined beam 6 by the bolts. The circular tube 611 disposed in the through holes 61 reduces frictional damage to the inclined beam 6 caused by the bolts. Furthermore, the circular tube 611 partially absorbs the squeezing force of the nut, reducing the squeezing force on the inclined beam 6 and thus reducing damage to the inclined beam 6. The wall thickness of the circular tube 611 is typically 2-4 mm.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-strength and lightweight composite photovoltaic bracket, characterized in that: include: diagonal beams, support members and sliding connections; The bottom ends of the plurality of support members are installed on the ground foundation, and the top ends are hinged with the sliding connection members, and are connected to the inclined beams through the sliding connection members, so as to support the inclined beams; The upper end of the sliding connection is provided with a first groove, and a first bolt is installed on the top of the first groove. The first bolt passes through the two vertical sides of the first groove and is used to adjust the tightness of the two vertical sides of the first groove. During installation, the inclined beam is placed in the first groove, and the first bolt is tightened so that the two vertical sides of the first groove clamp the inclined beam inward, and the inclined beam is fixedly connected to the inclined beam by friction. The high-strength and lightweight composite material photovoltaic bracket is made of composite material.

2. The high-strength and lightweight composite photovoltaic bracket according to claim 1, characterized in that: It also includes a plurality of purlins, which are transversely installed on the plurality of inclined beams and are used for installing solar cell panels.

3. The high-strength and lightweight composite photovoltaic bracket according to claim 1, characterized in that: Also included are ground foundation connections; The ground foundation connector includes a base and a triangular connector, and the bottom ends of several supporting members are installed on the ground foundation through the base or the triangular connector.

4. The high-strength and lightweight composite photovoltaic bracket according to claim 3, characterized in that: The bottoms of the base and the triangular connector are both provided with bolt holes, which are long strip holes for inserting bolt heads preset on the ground foundation. The base and the triangular connector are both fixed to the ground foundation by bolts.

5. The high-strength and lightweight composite photovoltaic bracket according to claim 3, characterized in that: The support member includes a column, which is arranged perpendicular to the ground foundation and has a bottom end mounted on the ground foundation through the base; The bottom end of the column is fixedly connected to the base by bonding; The columns include a front column and a rear column; The top ends of the front column and the rear column are fixedly connected to the front and rear ends of the oblique beam respectively through the sliding connection parts, so as to support the oblique beam.

6. The high-strength and lightweight composite photovoltaic bracket according to claim 1, characterized in that: The support structure further comprises an oblique brace, the bottom end of which is mounted on a ground foundation via a triangular connector; The triangular connector is groove-shaped, and the bottom end of the diagonal brace is inserted into the triangular connector and connected to the two vertical sides of the triangular connector by a bolt; The diagonal brace includes a front diagonal brace and a rear diagonal brace, which are inclined backward and forward respectively. The top ends of the front diagonal brace and the rear diagonal brace are fixedly connected to the middle of the diagonal beam through the sliding connection member to support the diagonal beam.

7. The high-strength and lightweight composite photovoltaic bracket according to claim 1, characterized in that: A second groove is provided at the lower end of the sliding connection piece, and the top end of the supporting member is passed through the second groove and connected to the two vertical sides of the second groove through a second bolt.

8. The high-strength and lightweight composite photovoltaic bracket according to claim 2, characterized in that: The bottom of the purlin is fixedly connected to the oblique beam by bolts.

9. The high-strength and lightweight composite photovoltaic bracket according to claim 2, characterized in that: The inclined beam is provided with a plurality of through holes, and round tubes are provided in the through holes. When the purlin is installed, bolts pass through the bottom of the purlin and the round tubes, and the purlin is installed on the inclined beam by the bolts.

10. The high-strength and lightweight composite photovoltaic bracket according to claim 1, characterized in that: The composite material consists of reinforcing fibers and matrix resin.

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