Wind-proof pull rod system of concrete roof photovoltaic support

Abstract

The utility model belongs to the technical field of electric power system structures, and particularly relates to a concrete roof photovoltaic support windproof pull rod system. The windproof pull rod system of the concrete roof photovoltaic support comprises a pull rod, a triangular connecting piece and a concrete buttress. The pull rod is arranged between the concrete buttress and a vertical column of the photovoltaic support system; the triangular connecting piece comprises a first triangular connecting piece and a second triangular connecting piece; the upper surface of the concrete buttress is connected with one end of a pull rod through a second triangular connecting piece, and the other end of the pull rod is connected with a north upright post of the photovoltaic support system through a first triangular connecting piece; and the concrete buttress is arranged above the mounting roof. On the basis of the conventional galvanized support arrangement of the distributed photovoltaic system on the concrete roof, the conventional arrangement is changed, the windproof pull rod is added, the model of the counterweight cement foundation is changed, the construction cost is reduced, and the increased load of the roof is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of power system structure, specifically relates to a concrete roof photovoltaic support windproof pull rod system. BACKGROUND

[0002] Developing new energy is the current important task, has the advantage such as low resource consumption, high degree of cleanness, potential market is big, driving ability is strong, comprehensive benefit is good, has important strategic significance to the sustainable development of economy and society. Among them, as an important new energy industry, distributed photovoltaic develops rapidly, and the installed capacity increases rapidly, but in the construction process, the problems such as low safety factor and high cost cannot be ignored.

[0003] In order to solve the safety problem of concrete roof distributed photovoltaic power station in the area with large wind, the size of the cement foundation can be increased or the steel wire rope connection mode can be used. The conventional scheme sets 450*450*400mm type cement foundation, and 21 cement foundations are used for 2*9 photovoltaic component array, and the overall volume of the cement foundation is calculated as 1.701m 3 Moreover, the existing design does not have a pull rod and a foundation, and the use of concrete is large, the roof load is increased, the overall material cost is high, and the device cannot withstand strong wind weather, the size of the cement foundation is large, and the construction is inconvenient.

[0004] Therefore, there is an urgent need for a windproof device that can reduce the amount of concrete, reduce the roof load and reduce the cost. INVENTION CONTENTS

[0005] To solve the problems in the prior art, the utility model provides a concrete roof photovoltaic support windproof pull rod system, which can reduce the amount of concrete and reduce the roof load, and the system is convenient to construct, and the material cost and construction cost are reduced.

[0006] The utility model adopts the following technical scheme.

[0007] A concrete roof photovoltaic support windproof pull rod system, comprising a pull rod, a triangular connecting piece and a concrete pier,

[0008] The pull rod is arranged between the concrete pier and the column of the photovoltaic support system;

[0009] The triangular connecting piece comprises a first triangular connecting piece and a second triangular connecting piece; the upper surface of the concrete pier is connected with one end of the pull rod through the second triangular connecting piece, and the other end of the pull rod is connected with the north column of the photovoltaic support system through the first triangular connecting piece;

[0010] The concrete pier is arranged above the installed roof.

[0011] Preferably, the pull rod is a U41*52*2.0 profile pull rod, and the included angle with the photovoltaic support system column is 40-45°.

[0012] Preferably, the first triangular connector is provided with a first connecting bolt and a second connecting bolt (2-2) for fixing the first triangular connector to the photovoltaic support column 1; the first connecting bolt and the second connecting bolt are M10*30 bolts.

[0013] Preferably, the first connecting bolt is fixed to the photovoltaic support system column below the top end by 85-100 mm.

[0014] Preferably, the first triangular connector is further provided with an upper bolt for connecting one end of the pull rod to the first triangular connector; the upper bolt is an M12*80 connecting bolt.

[0015] Preferably, the second triangular connector is provided with a double nut for connecting the double nut to the concrete support pier.

[0016] Preferably, the double nut is an M20 nut, which is symmetrically penetrated into the upper surface of the concrete support pier.

[0017] Preferably, the second triangular connector is further provided with a lower bolt for connecting the other end of the pull rod to the second triangular connector.

[0018] Preferably, the concrete support pier is arranged on the installed roof and is 800-1000 mm away from the concrete support pier below the photovoltaic support system column.

[0019] Preferably, the concrete support pier is a hexahedron made of concrete.

[0020] Compared with the prior art, the beneficial effects of the present application at least include:

[0021] The present application utilizes the same profile as the existing support, including a cross beam and a connecting piece, and adds a base of the same model to form a pull rod windproof system for areas with large wind loads.

[0022] (1) The present application is safer from the safety point of view. The back of the general assembly is the windward surface and is subjected to a larger wind force. The design is equivalent to increasing the base weight of the back plate. When the back is subjected to wind force, it will be more stable, and the overall stability of the support will be increased.

[0023] (2) The present application is convenient to construct and can be made of existing materials. The model of the pull rod is the same as that of the support body. The pull rod can be cut on site, and the remaining materials after cutting the support can be used for production. The connecting piece of the triangular connecting piece and the support column is the same, the overall material cost is low, and can be almost ignored. Moreover, the scheme is convenient to construct and quick to install.

[0024] (3) The application increases four bases and four pull rods of the original model, without increasing the size of the whole cement base and without increasing new materials. The front cement base adopts a size of 400*300*350mm, the middle and rear cement bases adopt a size of 400*400*350mm, and 25 blocks of bases are used for the 2*9 photovoltaic module array, and the whole volume of the bases is 1.302m 3 . Compared with the conventional scheme, the amount of concrete is reduced by 0.399m 3 , and the amount of C25 concrete per cubic meter is 2.4t, and the amount of concrete of each 2*9 array is reduced by 0.9576t. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is a sectional view of a pull rod of the utility model;

[0026] Fig. 2 It is a detailed view of a projection plane arrangement of a windproof pull rod of the utility model;

[0027] Fig. 3 It is an actual application effect of the utility model.

[0028] In the drawing: 1, photovoltaic support column; 2, connecting bolt; 2-1, first connecting bolt; 2-2, second connecting bolt; 3-1, first triangular connecting piece; 3-2, second triangular connecting piece; 4-1, upper bolt; 4-2, lower bolt; 5, pull rod; 6, double nut; 7, concrete support pier. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. The embodiments described in the application are only a part of the embodiments of the utility model, not all the embodiments. Based on the spirit of the utility model, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0030] As shown in Figs. 1-3 , the embodiment 1 of the utility model provides a concrete roof photovoltaic support windproof pull rod system, which comprises a pull rod 5, a triangular connecting piece, a concrete support pier 7, a connecting bolt and a double nut 6.

[0031] The pull rod 5 is a U41*52*2.0 profile pull rod, which is arranged between the concrete support pier 7 and the photovoltaic support column 1, one end of the pull rod 5 is connected with the concrete support pier 7 through the triangular connecting piece, the other end is connected with the upper end of the photovoltaic support system column 1 through the triangular connecting piece, and the included angle between the pull rod 5 and the photovoltaic support system column 1 is about 40°-45°.

[0032] The triangular connectors include a first triangular connector 3-1 and a second triangular connector 3-2, which are arranged at both ends of the pull rod 5 and used for fixing, supporting and connecting the pull rod 5.

[0033] The first triangular connector 3-1 is fixed to the photovoltaic support column 1 by arranging a first connecting bolt 2-1 and a second connecting bolt 2-2 on the first triangular connector 3-1.

[0034] The first connecting bolt 2-1 is fixed to the photovoltaic support system column 1 at a position 85-100 mm below the top end of the photovoltaic support system column 1.

[0035] The first connecting bolt 2-1 and the second connecting bolt 2-2 are M10*30 connecting bolts.

[0036] An upper bolt 4-1 is further arranged on the first triangular connector 3-1, and one end of the pull rod 5 is connected with the first triangular connector 3-1.

[0037] The upper bolt 4-1 is an M12*80 connecting bolt.

[0038] The second triangular connector 3-2 is connected with the concrete support pier 7 through an M20 double nut 6, and the double nut 6 penetrates the upper surface of the concrete support pier 7 symmetrically.

[0039] A lower bolt 4-2 is further arranged on the second triangular connector 3-2, and the other end of the pull rod 5 is connected with the second triangular connector 3-2.

[0040] The lower bolt 4-2 is an M12*80 connecting bolt.

[0041] The concrete support pier 7 is arranged on the roof and is connected with the second triangular connector 3-2, and is arranged at a position 800-1000 mm below the concrete support pier 7 of the photovoltaic support system column 1, and is used for increasing the weight and reinforcing the photovoltaic support.

[0042] It is worth noting that the U41*52*2.0 profile pull rod, the triangular connector, the concrete support pier, the M10*30 connecting bolt, the M12*80 connecting bolt and the M20 nut in the application are all materials for installing the photovoltaic support, the pull rod can be cut on site, the remaining materials after cutting the support can be used for manufacturing, the triangular connector and the connecting piece of the support column are the same, the overall material cost is low and can be ignored, and the scheme is convenient for construction and quick for installation.

[0043] Embodiment 2 of the utility model provides a mounting method of a concrete roof photovoltaic support windproof pull rod system, which comprises the following steps:

[0044] Step 1, an operator positions a line and places the position of the concrete support pier 7;

[0045] Step 2, install the whole galvanized photovoltaic support;

[0046] Step 3, cut the pull rod, the length of which can be adjusted according to the space of the actual installation position;

[0047] Step 4, install one first triangular connecting piece 3-1 and one second triangular connecting piece 3-2, and then install the U41*52*2.0 profile pull rod, to complete the installation of the windproof pull rod system.

[0048] Compared with the prior art, the beneficial effects of the present application at least include:

[0049] The present application uses the same profile as the existing support, including a cross beam and a connecting piece, plus the same model to form a pull rod windproof system for areas with large wind loads.

[0050] (1) The present application is safer from the safety point of view. The back of the general assembly is the windward surface and is subjected to a larger wind force. The design is equivalent to increasing the base weight of the back plate, and the back will be more stable when subjected to wind force, increasing the overall stability of the support.

[0051] (2) The present application is easy to construct and can be made of existing materials. The model of the pull rod is the same as that of the support body, the pull rod can be cut on site, the remaining material after cutting the support can be used to make the triangular connecting piece and the connecting piece of the support column. The overall material cost is low and almost negligible. The scheme is easy to construct and quick to install.

[0052] (3) The present application increases 4 bases and 4 pull rods of the original model, without increasing the size of the cement base as a whole and without adding new materials. The front cement base adopts a size of 400*300*350mm, the middle and rear cement bases adopt a size of 400*400*350mm, and the 2*9 photovoltaic module array uses 25 bases, with a total volume of 1.302m 3 . Compared with the conventional scheme, the amount of concrete is reduced by 0.399m 3 , and the amount of C25 concrete per cubic meter is 2.4t. The amount of concrete is reduced by 0.9576t for each 2*9 array.

[0053] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced, without departing from the spirit and scope of the present application. Any modification or equivalent replacement that does not depart from the spirit and scope of the present application should be covered within the protection scope of the claims of the present application.

Claims

1. A wind-resistant tie rod system for photovoltaic supports on concrete roofs, characterized in that: Includes tie rod (5), triangular connector and concrete support (7); The tie rod (5) is installed between the concrete support (7) and the column (1) of the photovoltaic support system; The triangular connector (3) includes a first triangular connector (3-1) and a second triangular connector (3-2); the upper surface of the concrete support (7) is connected to one end of the tie rod (5) through the second triangular connector (3-2), and the other end of the tie rod (5) is connected to the north column (1) of the photovoltaic support system through the first triangular connector (3-1); The concrete support (7) is set above the roof where it is installed.

2. The wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 1, characterized in that: The tie rod (5) is a U41*52*2.0 profile tie rod, and the angle between it and the photovoltaic support system column (1) is 40°~45°.

3. The wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 1, characterized in that: The first triangular connector (3-1) is provided with a first connecting bolt (2-1) and a second connecting bolt (2-2) to fix the first triangular connector (3-1) to the photovoltaic support column (1); the first connecting bolt (2-1) and the second connecting bolt (2-2) are M10*30 bolts.

4. The wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 3, characterized in that: The first connecting bolt (2-1) is fixed 85-100mm below the top of the photovoltaic support system column (1).

5. The wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 1, characterized in that: The first triangular connector (3-1) is also provided with an upper bolt (4-1), which connects one end of the pull rod (5) to the first triangular connector (3-1); the upper bolt (4-1) is an M12*80 connecting bolt.

6. The wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 1, characterized in that: The second triangular connector (3-2) is provided with double nuts (6), which are connected to the concrete support (7).

7. A wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 5, characterized in that: The double nuts (6) are M20 nuts, which symmetrically penetrate the upper surface of the concrete support (7).

8. The wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 1, characterized in that: The second triangular connector (3-2) is also provided with a lower bolt (4-2), which connects the other end of the pull rod (5) to the second triangular connector (3-2).

9. A wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 1, characterized in that: The concrete support (7) is set on the roof and 800-1000mm away from the concrete support below the photovoltaic support system column (1).

10. A wind-resistant tie rod system for a concrete roof photovoltaic support according to claim 9, characterized in that: The concrete support (7) is a hexahedron made of concrete.

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