Composite material photovoltaic support

Abstract

The utility model provides a composite material photovoltaic support. The composite material photovoltaic support comprises a plurality of support units and a plurality of purlines, the purlines are arranged perpendicular to the tops of the support units and used for fixedly connecting the adjacent support units and fixedly connecting the support units and the photovoltaic panel. Tie bars are further fixedly connected between the adjacent support units. The support units, the purlines and the tie bars are all made of composite materials. The composite material photovoltaic support is high in strength, good in fatigue resistance, resistant to corrosion and longer in service life; and the density of the same material is 1 / 4 of that of a galvanized steel material, so that the weight of the bracket is greatly reduced, and the production cost is reduced. All the components of the support unit are bonded, so that the situation that the service life of the support unit is affected by cracks due to damage to the components when fastening bolts are directly in threaded connection with the components is avoided.

Description

Technical Field

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

[0002] Photovoltaic brackets are an important part of photovoltaic power generation systems, mainly used to support solar panels to maximize their absorption of solar energy. Photovoltaic brackets are mostly made of galvanized steel and aluminum alloy, which makes them heavy and easy to corrode in high temperature and high humidity environments. The cost of anti-corrosion is also high. At the same time, the structure is complex and difficult to install. Utility Model Content

[0003] The purpose of the utility model is to provide a composite material photovoltaic bracket to solve at least one of the above-mentioned technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a composite photovoltaic bracket, comprising: a plurality of bracket units and a plurality of purlins which are parallel to each other and arranged at intervals;

[0005] The purlin is arranged perpendicular to the top of the bracket unit, and is used for fixed connection between adjacent bracket units and fixed connection between the bracket unit and the photovoltaic panel;

[0006] Tie bars are also fixedly connected between adjacent bracket units;

[0007] The support unit, the purlin and the tie rod are all made of composite materials.

[0008] Furthermore, the support unit includes a support, a front column, a rear column, an inclined beam and an inclined brace;

[0009] The front pillars and the rear pillars are arranged parallel and spaced apart in the horizontal direction;

[0010] The bottoms of the front column and the rear column are respectively fixedly connected to the support;

[0011] The oblique beam is used for fixed connection between the top of the front column and the top of the rear column;

[0012] The connecting line between the top of the front column and the top of the rear column is inclined to the horizontal plane;

[0013] The diagonal brace is used for fixed connection between the diagonal beam and the rear column, and the diagonal brace, the rear column and the diagonal beam are arranged in a triangle.

[0014] Furthermore, the tie rod is fixedly arranged between adjacent rear columns, and the tie rod, the rear column and the ground are arranged in a triangle.

[0015] The triangular structure composed of the diagonal brace, rear column and diagonal beam increases the stability of the bracket unit; the triangle formed between the tie rod, the rear column and the ground increases the stability between the bracket units, thereby improving the stability of the photovoltaic panel installation.

[0016] Furthermore, the top of the purlin is fixedly connected to the photovoltaic panel, and the bottom of the purlin is fixedly connected to the inclined beam.

[0017] Preferably, the front column, the rear column and the diagonal beam are fixedly connected via a first connecting member; the diagonal beam and the diagonal brace are fixedly connected via a second connecting member; and the rear column and the diagonal brace are fixedly connected via a third connecting member.

[0018] Furthermore, the tie rod and the rear column are fixedly connected via a fourth connecting member.

[0019] Furthermore, the support is provided with a hole that is adapted to the cross-sectional shape of the front column and the rear column, and is used for fixed connection between the front column, the rear column and the support.

[0020] Furthermore, the cross-sections of the front column, the rear column, the diagonal beam and the diagonal brace are square tubes or rectangular tubes.

[0021] Furthermore, the tensioning reinforcement is a round bar or a threaded steel bar.

[0022] Preferably, the matrix resin of the composite material is vinyl resin or epoxy resin, and the reinforcing fiber is glass fiber or basalt fiber.

[0023] Furthermore, the bracket unit is assembled at the construction site or assembled in a processing plant and then transported to the construction site.

[0024] The bracket unit is assembled in advance at the processing plant, which can reduce the assembly workload at the construction site, greatly improve construction efficiency and save construction costs.

[0025] By adopting the above technical solution, the utility model has the following beneficial effects:

[0026] 1. This composite photovoltaic bracket has high strength, good fatigue resistance, corrosion resistance and longer service life; the density of the same material is 1 / 4 of the density of galvanized steel material, which greatly reduces the weight of the bracket and reduces production costs.

[0027] 2. The components of the bracket unit are bonded together to avoid damage to the components when the fastening bolts are directly threaded with the components, which may cause cracks and affect the service life of the bracket unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 in the following description 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 creative work.

[0029] Figure 1 A front view of a composite material photovoltaic bracket provided in Example 1 of the utility model;

[0030] Figure 2 for Figure 1 A partial right view of

[0031] Figure 3 A cross-sectional view of a purlin in a composite material photovoltaic support provided in Example 1 of the utility model;

[0032] Figure 4 A partial cross-sectional view of the connection between the purlin, photovoltaic panel and inclined beam in a composite photovoltaic bracket provided in Example 1 of the utility model;

[0033] Figure 5 A partial cross-sectional view of the connection between the front column and the inclined beam in a composite photovoltaic bracket provided in Example 1 of the utility model;

[0034] Figure 6 A partial cross-sectional view of the connection between an oblique beam and an oblique brace in a composite material photovoltaic support provided in Example 1 of the utility model;

[0035] Figure 7 A front view of a first connecting member in a composite photovoltaic bracket provided in Example 1 of the utility model;

[0036] Figure 8 A front view of a second connecting member in a composite material photovoltaic bracket provided in Example 1 of the utility model;

[0037] Fig. 9 A partial cross-sectional view of the connection between the oblique beam and the rear column in a composite photovoltaic support provided in Example 1 of the utility model;

[0038] Fig.10 A front view of a third connecting member in a composite material photovoltaic bracket provided in Example 1 of the utility model;

[0039] Fig.11 A partial cross-sectional view of the connection between the tie rod and the rear column in a composite photovoltaic bracket provided in Example 1 of the utility model;

[0040] Fig.12A front view of a fourth connecting member in a composite material photovoltaic bracket provided in Example 1 of the utility model;

[0041] Fig.13 A partial cross-sectional view of the connection between the base and the front column in a composite photovoltaic bracket provided in Example 1 of the utility model;

[0042] Fig.14 A front view of a purlin in a composite material photovoltaic support provided in Example 2 of the utility model;

[0043] Fig.15 A partial cross-sectional view of the connection between the purlin, photovoltaic panel and inclined beam in a composite photovoltaic bracket provided in Example 2 of the utility model;

[0044] Fig.16 A front view of a purlin in a composite material photovoltaic support provided in Example 3 of the utility model;

[0045] Fig.17 A partial cross-sectional view of the connection between the purlin, photovoltaic panel and inclined beam in a composite photovoltaic bracket provided in Example 3 of the utility model;

[0046] Fig.18 A front view of a purlin in a composite material photovoltaic support provided in Example 4 of the utility model;

[0047] Fig.19 A connection diagram of the purlins, photovoltaic panels and diagonal beams in a composite material photovoltaic bracket provided in Example 4 of the utility model.

[0048] Reference numerals:

[0049] 10-bracket unit; 11-support; 12-front column; 13-rear column; 14-inclined beam; 141-slot; 15-inclined brace; 16-first connecting piece; 161-first connecting square tube; 162-first connecting bottom plate; 17-second connecting piece; 171-second connecting square tube; 172-second connecting bottom plate; 18-third connecting piece; 181-third connecting piece; 182-third connecting bottom plate; 19-square pressure ring; 20-purlin; 201-clip board; 21-fastening bolt; 22-fastening nut; 23-round nut; 24-threaded pipe; 30-tensioning rod; 40-fourth connecting piece; 41-round tube; 42-round bottom plate; 50-round pressure ring; 60-photovoltaic panel; 70-photovoltaic panel pressure plate. DETAILED DESCRIPTION

[0050] The present invention will be further explained below in conjunction with specific implementation methods.

[0051] Example 1

[0052] like Figure 1As shown, a composite photovoltaic bracket provided in this embodiment includes: a plurality of bracket units 10 and a plurality of purlins 20 which are parallel to each other and spaced apart;

[0053] The purlin 20 is arranged perpendicular to the top of the bracket unit 10 and is used for fixing the connection between adjacent bracket units 10 and fixing the connection between the bracket unit 10 and the photovoltaic panel 60;

[0054] Tie bars 30 are also fixedly connected between adjacent bracket units 10;

[0055] The support unit 10, the purlin 20 and the tie rod 30 are all made of composite materials.

[0056] like Figure 2 As shown, the tie rod 30 is fixedly arranged between adjacent rear columns 13, and the tie rod 30, the rear columns 13 and the ground form a stable triangle arrangement.

[0057] like Figure 3-4 As shown, T-shaped grooves are provided at the upper and lower ends of the purlin 20 along the length direction of the purlin 20, and a plurality of fasteners are arranged at intervals in the T-shaped grooves.

[0058] In this embodiment, the fastener is a fastening bolt 21, which is fixed to the T-slot by bonding, and the arrangement position of the fastening bolt 21 is consistent with the position of the connection hole of the photovoltaic panel 60 and the position of the connection hole on the bracket unit 10. After the fastening bolt 21 passes through the connection hole opened on the photovoltaic panel 60 or the bracket unit 10, it is fastened and connected with the fastening nut 22, thereby fixing the photovoltaic panel 60 and the bracket unit 10 together.

[0059] like Figure 1 As shown, the bracket unit 10 includes a support 11, a front column 12, a rear column 13, an inclined beam 14 and an inclined brace 15;

[0060] The front pillar 12 and the rear pillar 13 are arranged parallel and spaced apart;

[0061] The oblique beam 14 is fixedly disposed on the top of the front column 12 and the rear column 13, and is used for fixed connection between the front column 12 and the rear column 13;

[0062] The diagonal brace 15, the rear column 13 and the diagonal beam 14 form a triangle arrangement.

[0063] The triangular structure formed by the diagonal brace 15 , the rear column 13 and the diagonal beam 14 increases the stability of the bracket unit 10 .

[0064] The cross sections of the front column 12, the rear column 13, the diagonal beam 14 and the diagonal brace 15 are square tubes or rectangular tubes.

[0065] In this embodiment, the front column 12, the rear column 13, the inclined beam 14 and the inclined brace 15 are square tubes.

[0066] like Figure 5-6 As shown, the front column 12 , the rear column 13 and the oblique beam 14 are fixedly connected via a first connecting member 16 ; the oblique beam 14 and the oblique support 15 are fixedly connected via a second connecting member 17 .

[0067] like Figure 7-8 As shown, in this embodiment, the first connecting member 16 includes a first connecting square tube 161 and a first connecting bottom plate 162, and the second connecting member 17 includes a second connecting square tube 171 and a second connecting plate; the first connecting member 16 and the second connecting member 17 are embedded in the inclined beam 14, and one end of the front column 12, the rear column 13 and the diagonal brace 15 are respectively sleeved in the first connecting member 16 and the second connecting member 17; and the first connecting member 16 and the second connecting member 17 are fixedly connected to the inclined beam 14, the front column 12, the rear column 13 and the diagonal brace 15 by bonding.

[0068] The provision of the first connecting base plate 162 increases the contact area between the first connecting member 16 and the front column 12, the rear column 13 and the diagonal beam 14, and the provision of the second connecting base plate 172 increases the contact area between the diagonal beam 14 and the diagonal support 15, thereby increasing the bonding area, improving the bonding strength, and increasing the connection strength and stability of the bracket unit 10.

[0069] like Figure 9-10 As shown, a third connecting member 18 is also included, which is used for fixed connection between the rear pillar 13 and the diagonal brace 15, and includes a third connecting square tube 181 and a third connecting bottom plate 182;

[0070] The third connecting member 18 is embedded in the rear pillar 13 , one end of the diagonal brace 15 is sleeved in the third connecting member 18 , and the diagonal brace 15 , the rear pillar 13 and the third connecting member 18 are fixedly connected by bonding.

[0071] The provision of the third connecting bottom plate 182 increases the contact area between the third connecting member 18 and the diagonal brace 15 and the rear pillar 13, thereby improving the bonding strength.

[0072] like Figure 11-12 As shown, the tie rod 30 and the rear column 13 are fixedly connected by a fourth connecting member 40, and the fourth connecting member 40 is fixedly connected to the tie rod 30 and the rear column 13 by bonding; the fourth connecting member 40 includes a circular tube 41 and a circular bottom plate 42 fixedly arranged on the inner side of one end of the circular tube 41.

[0073] The tie rod 30 is a round bar or a threaded steel bar.

[0074] In this embodiment, the tie rod 30 is a round rod.

[0075] Preferably, the support 11 is provided with a hole for fixedly connecting with the front column 12 and the rear column 13 and matching the cross-sectional shape of the front column 12 and the rear column 13 .

[0076] like Fig.13 As shown, one end of the front column 12 and the rear column 13 connected to the support 11 is sleeved in the support 11, and a square hole matching the shape of the front column 12 and the rear column 13 is opened on the support 11; and the support 11 and the front column 12 and the rear column 13 are fixedly connected by bonding.

[0077] In addition, square compression rings 19 are provided on the upper part of the front column 12, the upper part of the rear column 13 and the two ends of the inclined beam 14 to cover the joints between the front column 12, the rear column 13 and the inclined beam 14 and the joints between the inclined brace 15 and the inclined beam 14, the rear column 13, so as to improve the aesthetics of the bracket unit 10.

[0078] Circular pressure rings 50 are sleeved on both ends of the tie rod 30 to cover the connection between the tie rod 30 and the rear column 13 .

[0079] The square pressing ring 19 and the circular pressing ring 50 are both made of elastic material and have large elastic deformation, which is conducive to fitting with the connecting piece, effectively covering the seams of the connecting parts, and improving the aesthetics of the bracket.

[0080] Furthermore, a photovoltaic panel pressing plate 70 is included, which is used for pressing between adjacent photovoltaic panels 60 or on one side of the photovoltaic panel 60. The photovoltaic panel pressing plate 70 belongs to the prior art and will not be described in detail in this embodiment.

[0081] In this embodiment, the matrix resin of the composite material is vinyl resin or epoxy resin, and the reinforcing fiber is glass fiber or basalt fiber.

[0082] The front column 12, the rear column 13, the oblique beam 14, the oblique brace 15, the purlin 20 and the tie rod 30 are manufactured by pultrusion process.

[0083] The support 11 , the first connecting member 16 , the second connecting member 17 , the third connecting member 18 and the fourth connecting member 40 are made by a molding process.

[0084] Furthermore, the bracket unit 10 is assembled at the construction site or assembled in a processing plant and then transported to the construction site.

[0085] Specifically, in the processing plant, the support 11, the front column 12, the rear column 13, the inclined beam 14, the diagonal brace 15, the first connecting member 16, the second connecting member 17, the third connecting member 18, and the square pressure ring 19 are first fixed together by bonding and then transported to the construction site. At the construction site, the purlin 20, the tie rod 30, the fourth connecting member 40, the circular pressure plate 50 and the bracket unit 10 are assembled and connected. Finally, the photovoltaic panel 60 and the purlin 20 are fixedly connected and the photovoltaic panel pressure plate 70 is installed.

[0086] The bracket unit 10 is assembled in advance in the processing plant, which can reduce the assembly workload at the construction site, greatly improve the construction efficiency and save construction costs.

[0087] Example 2

[0088] This embodiment is basically the same as Embodiment 1, except that:

[0089] like Figure 14-15 As shown, the cross section of the purlin 20 is a hollow rectangular arrangement, and a plurality of round nuts 23 are fixedly arranged at intervals along the length direction of the purlin 20 at the top and bottom of the purlin 20, which are respectively used for fixing the purlin 20 with the photovoltaic panel 60 and the inclined beam 14;

[0090] The distance between adjacent round nuts 23 disposed on the top of the purlin 20 is consistent with the spacing between the mounting holes of the photovoltaic panel 60;

[0091] The distance between adjacent round nuts 23 disposed at the bottom of the purlin 20 is consistent with the installation spacing between adjacent diagonal beams 14 .

[0092] The round nuts 23 are fixedly connected to the purlins 20 by pre-embedding or by drilling holes on the purlins 20 and then bonding.

[0093] In this embodiment, the round nut 23 is fixedly connected to the purlin 20 by drilling first and then bonding.

[0094] During installation, the fastening bolts 21 pass downward through the photovoltaic panel 60 or upward through the through holes on the inclined beam 14 and connect with the round nuts 23 on the purlin 20 , thereby completing the fixed installation of the purlin 20 and the photovoltaic panel 60 , and the purlin 20 and the inclined beam 14 .

[0095] Example 3

[0096] This embodiment is basically the same as Embodiment 2, except that:

[0097] like Figure 16-17 As shown, the purlin 20 is arranged in an I-shape, and a threaded tube 24 with internal threads is vertically and fixedly arranged in the middle of the purlin 20. The distance between adjacent threaded tubes 24 along the length direction of the purlin 20 is consistent with the spacing of the installation holes of the photovoltaic panel 60.

[0098] The threaded tube 24 is fixedly connected to the purlin 20 by pre-embedding or by first drilling a hole on the purlin 20 and then bonding.

[0099] In this embodiment, the threaded tube 24 is fixedly connected to the purlin 20 by drilling holes first and then bonding.

[0100] During installation, the fastening bolts 21 pass downward through the photovoltaic panel 60 or upward through the through holes on the inclined beam 14 to connect with the threaded tubes 24 on the purlin 20 , thereby completing the fixed installation of the purlin 20 and the photovoltaic panel 60 , and the purlin 20 and the inclined beam 14 .

[0101] Example 4

[0102] This embodiment is basically the same as Embodiment 1, except that:

[0103] like Figure 18-19 As shown, a T-shaped slot is provided at the top of the purlin 20 for installing the fastening bolts 21 , and a clamping plate 201 is fixedly provided at the bottom of the purlin 20 ; a clamping slot 141 adapted to the clamping plate 201 is provided on the inclined beam 14 .

[0104] During installation, first insert the clamping plate 201 on the purlin 20 into the clamping groove 141 of the inclined beam 14, and then fix the purlin 20 to the inclined beam 14 by bonding; then fix the photovoltaic panel 60 to the purlin 20 by tightening the bolts 21 to complete the installation of the photovoltaic panel 60.

[0105] The composite photovoltaic bracket provided by the utility model has the following advantages:

[0106] 1. This composite photovoltaic bracket has high strength, good fatigue resistance, corrosion resistance and longer service life; the density of the same material is 1 / 4 of the density of galvanized steel material, which greatly reduces the weight of the bracket and reduces production costs.

[0107] 2. The components of the bracket unit are bonded together to avoid damage to the components when the fastening bolts are directly threaded with the components, which may cause cracks and affect the service life of the bracket unit.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A composite photovoltaic bracket, characterized in that , including: a plurality of bracket units and a plurality of purlins which are parallel to each other and arranged at intervals; The purlin is arranged perpendicular to the top of the bracket unit, and is used for fixed connection between adjacent bracket units and fixed connection between the bracket unit and the photovoltaic panel; Tie bars are also fixedly connected between adjacent bracket units; The support unit, the purlin and the tie rod are all made of composite materials.

2. The composite photovoltaic bracket according to claim 1, characterized in that ,The bracket unit includes a support, a front column, a rear column, an oblique beam and an oblique brace; The front pillars and the rear pillars are arranged parallel and spaced apart in the horizontal direction; The bottoms of the front column and the rear column are respectively fixedly connected to the support; The oblique beam is used for fixed connection between the top of the front column and the top of the rear column; The connecting line between the top of the front column and the top of the rear column is inclined to the horizontal plane; The diagonal brace is used for fixed connection between the diagonal beam and the rear column, and the diagonal brace, the rear column and the diagonal beam are arranged in a triangle.

3. The composite photovoltaic bracket according to claim 2, characterized in that The tie rod is fixedly arranged between adjacent rear columns, and the tie rod, the rear column and the ground are arranged in a triangle.

4. The composite photovoltaic bracket according to claim 2, characterized in that The top of the purlin is fixedly connected to the photovoltaic panel, and the bottom of the purlin is fixedly connected to the inclined beam.

5. The composite photovoltaic bracket according to claim 2, characterized in that The front column, the rear column and the diagonal beam are fixedly connected by a first connecting member; the diagonal beam and the diagonal brace are fixedly connected by a second connecting member; and the rear column and the diagonal brace are fixedly connected by a third connecting member.

6. The composite photovoltaic bracket according to claim 2, characterized in that The tie rod is fixedly connected to the adjacent rear column via a fourth connecting piece.

7. The composite photovoltaic bracket according to claim 2, characterized in that The support is provided with holes that are compatible with the cross-sectional shapes of the front column and the rear column, which are used for fixed connection between the front column, the rear column and the support.

8. The composite photovoltaic bracket according to claim 2, characterized in that The cross sections of the front column, the rear column, the diagonal beam and the diagonal brace are square tubes or rectangular tubes.

9. The composite photovoltaic bracket according to claim 1, characterized in that: The tensioning reinforcement is a round bar or a threaded steel bar.

10. The composite photovoltaic bracket according to claim 1, characterized in that ,The matrix resin of the composite material is vinyl resin or epoxy resin, and the reinforcing fiber is glass fiber or basalt fiber.

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