Photovoltaic support installed in probing yard under flat roof

Abstract

The utility model discloses a photovoltaic support installed in a probing yard under a flat roof, which comprises a single-slope truss installed on the flat roof, a row of stand columns arranged in front of a house, and a fixed support fixed at the upper part of a rear side wall body, and is characterized in that the single-slope truss is provided with a photovoltaic installation inclined plane with a low front part and a high rear part; the front side of the single-slope truss is provided with an overhanging section extending out of the front side wall body, the overhanging section is connected with the stand column, and a connecting piece is arranged between the rear side of the single-slope truss and the fixed support. According to the utility model, the single-slope truss is installed on the flat roof, a photovoltaic installation inclined plane with a low front part and a high rear part can be formed and is used for installing a photovoltaic assembly, and the photovoltaic installation inclined plane faces the sunlight irradiation direction, so that the power generation efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaics, and particularly relates to a photovoltaic bracket installed in a sunken courtyard under a flat roof.

Background Art

[0002] At present, the scheme of installing a photovoltaic system by sealing color steel on a flat roof must be connected and fixed to the house. In some cases, neither the south wall nor the roof of the house can be fixed, and farmers have the need to seal color steel, so it is difficult to develop such housing business.

[0003] The existing flat roof color steel sealing scheme can only be installed on the roof. Referring to the Chinese utility model patent with the authorization announcement number CN 220401645U, which discloses a flat roof photovoltaic installation structure, relating to the technical field of photovoltaic systems. The flat roof photovoltaic installation structure includes tie rods, pressing members and triangular truss members. Among them, the number of truss members is at least two, each truss member is vertically arranged, and the side beams on the same side of the apex angle of each truss member are coplanar; the number of tie rods is at least two, each tie rod extends horizontally and overlaps each truss member at its bottom, and the tie rod is fixedly connected to each truss member it overlaps; the pressing member has a connecting portion, and the tie rod at the bottom of the truss member and / or the side beam at the bottom opposite to the apex angle in the truss member are fitted into the connecting portion. Although this photovoltaic installation structure completes positioning and fixing relatively simply through the pressing member, is convenient to install, and has a wide range of applications, such as any type of flat roof like precast slab flat roofs, wooden flat roofs, etc. However, in some areas, the north-south width of the flat roof is relatively narrow, and the installed capacity of such housing sources is small, which affects the power generation efficiency.

Content of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a photovoltaic bracket installed in a sunken courtyard under a flat roof, to solve the problem of installing photovoltaic modules without fixed points on the south wall and roof of the sunken courtyard under the flat roof, and to increase the installed capacity and improve the power generation efficiency.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A photovoltaic bracket installed in a sunken courtyard under a flat roof includes a single-slope truss installed on the flat roof, a row of columns arranged in front of the house, and a fixed support fixed on the upper part of the rear wall. The single-slope truss is provided with a photovoltaic installation slope with a lower front and a higher rear. The front side of the single-slope truss is provided with a cantilever section extending beyond the front wall. The cantilever section is connected to the column, and a connecting member is provided between the rear side of the single-slope truss and the fixed support.

[0007] Preferably, a horizontally extending front bottom beam is connected below the front end of the cantilever section, and the upper end sealing plate of the column is connected to the front bottom beam.

[0008] Preferably, a diagonal brace is provided between the front bottom beam and the column.

[0009] Preferably, a horizontally extending horizontal truss is provided below the cantilever section. The upper chord of the horizontal truss is connected to the cantilever section, and the lower chord is connected to the upper end closing plate of the column.

[0010] Preferably, a diagonal bracing is provided between the lower chord and the column.

[0011] Preferably, a rear bottom beam is connected to the rear side of the bottom of the single-pitch truss, and the connecting member is a tie bar connecting the rear bottom beam and the fixed support.

[0012] Preferably, the fixed support is fixed to the rear wall by expansion bolts.

[0013] Preferably, the photovoltaic support further includes purlins installed on the single-pitch truss, and the photovoltaic modules are installed on the purlins.

[0014] Preferably, a foundation is buried in the ground on the front side of the house, and the bottom of the column is fixed to the foundation by bolts.

[0015] Preferably, both the column and the single-pitch truss are made of square steel pipes.

[0016] The utility model adopts the above technical solutions and has the following beneficial effects:

[0017] 1. According to the actual situation, the space in front of the house is relatively large, generally a courtyard or an open space in front of the house, which is also convenient for construction, and there is no difficulty in installing the columns. Therefore, a cantilever section extending beyond the front wall is provided on the front side of the single-pitch truss. The cantilever section is connected to the column, so that the photovoltaic support is separated from the front wall; the space at the rear of the house is relatively narrow, or for other reasons, it is not convenient to install the columns. Therefore, no cantilever structure is provided on the rear side of the single-pitch truss, and a fixed support is fixed to the upper part of the rear wall. The rear side of the single-pitch truss is connected to the fixed support through a connecting member. In this way, even if the roof cannot be fixed, since both the front side and the rear side of the single-pitch truss are fixed, fixed points do not need to be set on the flat roof, avoiding roof leakage caused by the installation of photovoltaic, and solving the problem of installing photovoltaic modules on the south wall of the lower courtyard of the flat roof and without fixed points on the roof.

[0018] Moreover, the above technical solutions also have the following beneficial effects:

[0019] In summer, due to direct sunlight, the indoor temperature of flat-roof houses is too high. Since the photovoltaic modules cover the entire roof, blocking direct sunlight on the roof and forming a photovoltaic heat insulation layer, it not only effectively protects the roof, but also can reduce the indoor temperature by 3°C - 5°C, effectively alleviating the stuffiness of the house on hot summer days.

[0020] The single - slope truss can form a photovoltaic installation inclined plane with a lower front and a higher rear for installing photovoltaic modules. Since the photovoltaic installation inclined plane faces the sunlight direction, it is beneficial to improve the power generation efficiency.

[0021] Since the front side of the single - slope truss is provided with a cantilever section extending beyond the front wall, the laying area of the photovoltaic modules can be increased, the installed capacity can be increased, the power generation efficiency can be improved, and the benefits of all parties can be improved. For farmers without eaves, the cantilever part can also act as an eaves to protect the farmers from wind and rain. Therefore, the floor columns combined with the single - slope truss have a high acceptance rate among farmers.

[0022] The advantage of the truss is that the members mainly bear tension or compression, which can give full play to the role of materials, save materials, and reduce the structural weight. Therefore, the single - slope truss adopted can form a stable support for the photovoltaic modules.

[0023] 2. The front bottom beam is used to support the front end of the cantilever section. The upper end sealing plate of the column is connected to the front bottom beam, so as to disperse the acting force of the cantilever section through multiple columns. The diagonal bracing rod can strengthen the support structure between the column and the front bottom beam. Therefore, the above - mentioned technical solution can ensure the stable installation of the photovoltaic modules.

[0024] 3. The horizontal truss has a stable structure. Then, the acting force of the cantilever section is dispersed through multiple columns. The diagonal bracing can strengthen the support structure between the column and the horizontal truss. Therefore, the above - mentioned technical solution can ensure the stable installation of the photovoltaic modules.

[0025] 4. The rear bottom beam is used to support the rear end of the single - slope truss. The fixed support is connected to the rear bottom beam through a connecting piece, so as to disperse the acting force on the rear side of the single - slope truss through multiple fixed supports. The fixed support is fixed to the rear wall by expansion bolts. Therefore, the above - mentioned technical solution can ensure the stable installation of the rear side of the photovoltaic modules.

[0026] 5. The columns and the single - slope truss are both made of square steel pipes, and the specifications and models can be selected. Since they are standard parts, the cost can be reduced.

[0027] These features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following further describes the utility model with reference to the drawings:

[0029] Figure 1 It is an application schematic diagram of a photovoltaic support installed under a flat roof and extending into the courtyard of the present utility model;

[0030] Figure 2 It is a connection structure schematic diagram of the rear side of the single - slope truss and the fixed support;

[0031] Figure 3 It is a side view of the first connection structure between the front side of the single - slope truss and the column;

[0032] Figure 4 Front view of the first connection structure between the front side of the single - slope truss and the column;

[0033] Figure 5 Side view of the second connection structure between the front side of the single - slope truss and the column;

[0034] Figure 6 Front view of the second connection structure between the front side of the single - slope truss and the column;

[0035] Reference numerals: Photovoltaic module 100, single - slope truss 1, lower chord 11, upper chord 12, purlin 13, column 2, upper end closing plate 201, front bottom beam 21, diagonal brace 22, horizontal strengthening bar 23, horizontal truss 24, diagonal bracing 25, fixed support 3, rear bottom beam 31, tie bar 32, expansion bolt 33, building 4, sloping roof 41, wall 42.

Detailed implementation manners

[0036] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0037] Those skilled in the art can understand that, without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0038] The terms used in the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. For example, the terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", etc. are only based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present utility model.

[0039] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0040] In addition, terms such as "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0041] The photovoltaic system involved in this embodiment is mainly aimed at the scenario of the south wall of the courtyard under the flat roof and no fixed points on the roof. Of course, it can also be installed on other conventional flat roofs. Refer to Figure 1 As shown, for this type of house with a courtyard under the flat roof, the roof of the house 4 is provided with a flat roof 41, a construction space is provided in the front side (usually the south side) of the house, such as a courtyard, and walls 42 are provided on both the north and south sides. As Figures 1 to 6 As shown, this embodiment provides a photovoltaic bracket installed in the courtyard under the flat roof, including a single-slope truss 1 installed on the flat roof 41, a row of columns 2 provided in front of the house, and a fixed support 3 fixed to the upper part of the rear wall. The single-slope truss 1 is provided with a photovoltaic installation inclined plane with a lower front and a higher rear. The front side of the single-slope truss 1 is provided with a cantilever section extending beyond the front wall. The cantilever section is connected to the column 2, and a connecting member is provided between the rear side of the single-slope truss 1 and the fixed support 3.

[0042] For the single-slope truss 1, a common structure in the prior art can be adopted. The single-slope truss 1 has a lower chord 11 horizontally arranged below and an upper chord 12 obliquely extending above. Web members are connected between the lower chord 11 and the upper chord 12. The photovoltaic bracket is further provided with purlins 13 installed on the single-slope truss. The purlins extend horizontally and are connected to the upper chord. The photovoltaic module 100 is installed on the purlins 13.

[0043] According to the actual situation, the space in the front side of the house is relatively large, generally a courtyard or an open space in front of the house, which is also convenient for construction and there is no difficulty in installing the columns. Therefore, the front side of the single-slope truss is provided with a cantilever section extending beyond the front wall, and the cantilever section is connected to the column, so that the photovoltaic bracket is separated from the front wall; the space in the rear side of the house is relatively narrow, or for other reasons, it is not convenient to install the columns. Therefore, no cantilever structure is provided on the rear side of the single-slope truss, and a fixed support is provided on the upper part of the rear wall. A connecting member is used to connect between the rear side of the single-slope truss and the fixed support. In this way, even if the roof cannot be fixed, since both the front side and the rear side of the single-slope truss are fixed, no fixed points need to be set on the flat roof, avoiding roof leakage caused by the installation of the photovoltaic, and solving the problem of installing the photovoltaic module on the south wall of the courtyard under the flat roof and no fixed points on the roof.

[0044] Moreover, the above technical solution also has the following beneficial effects:

[0045] In summer, due to direct sunlight, the indoor temperature of flat-roof houses is too high. Since the photovoltaic modules completely cover the roof, blocking direct sunlight from hitting the roof and forming a photovoltaic heat insulation layer, it not only effectively protects the roof but also reduces the indoor temperature by 3℃ - 5℃, effectively alleviating the stuffy situation of houses on sweltering high-temperature days.

[0046] The single-slope truss can form a photovoltaic installation inclined plane with a lower front and a higher rear for installing photovoltaic modules. Since the photovoltaic installation inclined plane faces the sunlight direction, it is beneficial to improve the power generation efficiency.

[0047] Since the front side of the single-slope truss is provided with a cantilever section extending beyond the front wall, the laying area of the photovoltaic modules can be increased, the installed capacity can be increased, the power generation efficiency can be improved, and the benefits of all parties can be improved. For farmers without eaves, the cantilever part can also serve as an eaves to protect the farmers from wind and rain. Therefore, the floor columns combined with the single-slope truss have a high acceptance rate among farmers.

[0048] The advantage of the truss is that the members mainly bear tension or compression, which can give full play to the role of materials, save materials, and reduce the structural weight. Therefore, the single-slope truss is adopted to form a stable support for the photovoltaic modules.

[0049] As an implementation method, as Figure 3 and Figure 4 shown, a horizontally extending front bottom beam 21 is connected below the front end of the cantilever section, and the upper end sealing plate 201 of the column is connected to the front bottom beam. Further, a diagonal brace 22 is provided between the front bottom beam 21 and the column 2. The front bottom beam is used to support the front end of the cantilever section, and the upper end sealing plate of the column is connected to the front bottom beam, so as to disperse the acting force of the cantilever section through multiple columns. The diagonal brace can strengthen the support structure between the column and the front bottom beam. Therefore, the above technical solution can ensure the stable installation of the front side of the photovoltaic modules.

[0050] As another implementation method, as Figure 3 and Figure 4 shown, a horizontally extending horizontal truss 24 is provided below the cantilever section. The upper chord of the horizontal truss 24 is connected to the cantilever section, and the lower chord is connected to the upper end sealing plate of the column. Further, a diagonal spacer 25 is provided between the lower chord and the column. The horizontal truss structure is stable. By dispersing the acting force of the cantilever section through multiple columns, the diagonal spacer can strengthen the support structure between the column and the horizontal truss. Therefore, the above technical solution can ensure the stable installation of the front side of the photovoltaic modules.

[0051] It can be understood that the length of the cantilever section on the front side of the single-slope truss can be appropriately lengthened or shortened according to the space in the courtyard. For the case where the length of the cantilever section is relatively long, at least two rows of columns can be arranged in the front-back direction to ensure a stable support for the cantilever part. Diagonal strengthening bars can be provided between the columns and the lower chord of the cantilever section. In addition, a horizontal strengthening bar 23 can also be provided between the columns and the front wall.

[0052] As Figure 2 shown, a rear bottom beam 31 is connected to the rear side of the bottom of the single-slope truss 1. The rear bottom beam 31 is parallel to the front bottom beam 21 and also extends horizontally. The connecting member is a tie bar 32 that connects the rear bottom beam to the fixed support. The fixed support 3 is fixed to the rear side wall by an expansion bolt 33. The rear bottom beam is used to support the rear end of the single-slope truss. The fixed support is connected to the rear bottom beam through the connecting member, so as to disperse the acting force on the rear side of the single-slope truss through multiple fixed supports. The fixed support is fixed to the rear side wall by an expansion bolt. Therefore, the above technical solution can ensure the stable installation of the rear side of the photovoltaic module.

[0053] It can be understood that the fixed support can also be a bracket support. The rear bottom beam can be not arranged on the flat roof but located behind the flat roof and supported by the bracket support and the connecting member.

[0054] For the installation structure of the column, the prior art can be referred to. A foundation is buried in the ground on the front side of the house, and the bottom of the column is fixed to the foundation by bolts. Moreover, the foundation can be a reinforced concrete structure or a spiral steel pile.

[0055] Preferably, both the column 2 and the single-slope truss 1 are made of square steel pipes. The specification models can be selected. Since they are standard parts, the cost can be reduced. Of course, they can be replaced with other profiles.

[0056] For the above technical solution, after on-site lofting and positioning, first install the column, fixed support, and single-slope truss structure; then complete the purlin layout according to the drawings, and finally install the photovoltaic module.

[0057] The above is only the specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A photovoltaic bracket installed in a courtyard under a flat roof, characterized in that: It includes a single-slope truss installed on a flat roof, a row of columns arranged in front of the house, and a fixed support fixed to the upper part of the rear wall. The single-slope truss is provided with a photovoltaic installation slope that is low in the front and high in the back. The front side of the single-slope truss is provided with a cantilever section extending beyond the front wall, the cantilever section is connected to the column, and a connecting piece is provided between the rear side of the single-slope truss and the fixed support.

2. A photovoltaic support installed in a courtyard under a flat roof according to claim 1, characterized in that: A transversely extending front bottom beam is connected below the front end of the cantilever section, and an upper end cover plate of the column is connected to the front bottom beam.

3. A photovoltaic support installed in a courtyard under a flat roof according to claim 2, characterized in that: An oblique support rod is arranged between the front bottom beam and the upright column.

4. A photovoltaic support installed in a courtyard under a flat roof according to claim 1, characterized in that: A horizontal truss extending transversely is provided below the cantilever section, an upper chord of the horizontal truss is connected to the cantilever section, and a lower chord is connected to an upper end cover plate of a column.

5. A photovoltaic support installed in a courtyard under a flat roof according to claim 4, characterized in that: An oblique spacer is provided between the lower chord and the column.

6. A photovoltaic support installed in a courtyard under a flat roof according to claim 1, characterized in that: The rear side of the bottom of the monoslope truss is connected with a rear bottom beam, and the connecting member is a tie bar connecting the rear bottom beam and a fixed support.

7. A photovoltaic support installed in a courtyard under a flat roof according to claim 1, characterized in that: The fixed support is fixed to the rear wall by using expansion bolts.

8. The photovoltaic support installed in a courtyard under a flat roof according to claim 1, characterized in that: The photovoltaic support is also provided with purlins installed on the single-slope truss, and the photovoltaic components are installed on the purlins.

9. The photovoltaic support installed in a courtyard under a flat roof according to claim 1, characterized in that: A foundation is buried in the ground at the front side of the house, and the bottom of the column is fixed to the foundation by bolts.

10. The photovoltaic support installed in a courtyard under a flat roof according to claim 1, characterized in that: The columns and the single-slope trusses are both made of square steel pipes.

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