CN221030277U - Roof photovoltaic installation basis - Google Patents
Roof photovoltaic installation basis Download PDFInfo
- Publication number
- CN221030277U CN221030277U CN202322129074.2U CN202322129074U CN221030277U CN 221030277 U CN221030277 U CN 221030277U CN 202322129074 U CN202322129074 U CN 202322129074U CN 221030277 U CN221030277 U CN 221030277U
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- foundation
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- place concrete
- hole
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- 238000009434 installation Methods 0.000 title claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 16
- 238000005452 bending Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a roof photovoltaic installation foundation which is composed of a foundation hole, a plurality of screws, steel wires and cast-in-place concrete piers, wherein the foundation hole is a hole which is cut on a roof floor slab and is arranged on a reinforced concrete protection layer of the roof floor slab, the screw is embedded with a reinforcement on the reinforced concrete protection layer on the bottom surface of the foundation hole, the steel wires are wound on the screws, the cast-in-place concrete piers are cast in the foundation hole, and the upper parts of the cast-in-place concrete piers are protruded on the roof floor slab. The utility model does not damage the waterproof layer of the original roof floor slab, has good supporting and wind-proof lifting capacity, and solves the problems of large volume and weight of the counterweight block, poor wind resistance, easy roof water leakage caused by construction and the like of the traditional ballast type and concrete foundation pile foundation type.
Description
Technical Field
The utility model relates to the field of roof distributed photovoltaic installation construction, in particular to a roof photovoltaic installation foundation.
Background
Most household and industrial photovoltaic systems are installed on the roof, so that not only can power charge be saved for owners, but also the use of roof space can be optimized, and the temperature of the roof can be reduced. For cement roofs, common installations are ballast-type and concrete foundation pile-type.
The ballast type structure is characterized in that concrete piers are respectively arranged on each supporting leg of a support corresponding to the photovoltaic system, the concrete piers are placed on a roof and are not fixedly connected with the roof, the supporting legs of the support of the photovoltaic system are fixed on the concrete piers, and the support is pulled by the weight of the concrete piers. The concrete foundation pile foundation type is directly fixedly connected with the floor slab of the roof through bolts, so that the support of the photovoltaic system is pulled.
The above-described conventional ballast-type and concrete foundation pile-type structures have the following disadvantages:
1. the conventional ballasted structure has problems of large volume and weight for the following reasons:
The design of rooftop photovoltaic systems must take into account the maximum wind speeds that can occur locally, especially in areas where the wind speeds exceed 180 km per hour. The lifetime of the photovoltaic system is 25 years, 50 years of exposure must be considered. The common flat roof photovoltaic system can bear the wind speed of 160km/h (thirteen-level typhoons), but if no parapet is used for wind shielding, wind shielding is not considered among arrays, and the instantaneous wind speed caused by the airflow in a local area can far exceed the actual wind speed. The support must have wind-lift resistance for its choice, structural design, ballast or concrete foundation strength. The conventional ballast type structure pulls the bracket by the weight of the concrete pier, so that the concrete pier must have enough weight to meet the wind-proof capability, thereby resulting in large weight and large volume.
2. The construction of a traditional concrete foundation pile foundation can lead to a roof with a risk of water leakage for the following reasons:
Water accumulation is common on flat roofs, and water can go anywhere because the roof is flat, or drainage becomes slow, and the residence time on the roof becomes long, so that any roof gaps and holes become water accumulation residence places. The traditional concrete foundation pile foundation structure needs to be directly perforated on the floor slab of the roof, then the bolts are connected, so that the thickness of each layer structure of the floor slab can be clearly known in each construction in order not to damage the waterproof layer of the floor slab of the roof, and a certain depth needs to be ensured in each drilling. However, it is difficult to know the thickness of each floor structure of the floor slab on the roof of each user precisely, and the depth of each drilling is difficult to grasp during construction, so that the situation of breaking the waterproof layer of the floor slab easily occurs, and the roof is at risk of water leakage.
Disclosure of utility model
The utility model aims to provide a roof photovoltaic installation foundation which does not damage a waterproof layer of an original roof floor slab and has good supporting and wind-lifting preventing capabilities.
The aim of the utility model is achieved by the following technical scheme:
A roof photovoltaic installation basis, its characterized in that: the reinforced concrete pier comprises a foundation hole, a plurality of screws, steel wires and cast-in-place concrete piers, wherein the foundation hole is a hole which is cut on a roof floor slab and is arranged on a reinforced concrete protection layer of the roof floor slab, the screw is embedded with ribs on the reinforced concrete protection layer on the bottom surface of the foundation hole, the steel wires are wound on the screws, the cast-in-place concrete piers are cast in the foundation hole, and the upper parts of the cast-in-place concrete piers are protruded on the roof floor slab.
The roof is a cement roof, and the floor slab of the roof sequentially comprises floor tiles, a mortar layer, a reinforced concrete protective layer, a floor slab heat-insulating layer, a waterproof layer and a structural floor layer from top to bottom, and is of a conventional floor slab structure of the roof.
Preferably, the screw is arranged close to the edge of the base hole, and the wire is wound around the screw at least one turn.
Preferably, the upper end of the screw is provided with a bending part.
Preferably, the length and width of the upper portion of the cast-in-place concrete pier are both greater than the length and width of the base hole.
Preferably, the difference between the length of the upper portion of the cast-in-place concrete pier and the length of the foundation hole is not less than 30mm, and the difference between the width of the upper portion of the cast-in-place concrete pier and the width of the foundation hole is not less than 30mm.
Preferably, the depth of the planted bars of the screw is not less than 35mm.
Preferably, the diameter of the screw is not less than 6mm.
Preferably, the diameter of the steel wire is not less than 1.5mm.
Preferably, the strength grade of the concrete of the cast-in-place concrete pier is not lower than C20.
Preferably, the height difference between the upper surface of the cast-in-place concrete pier and the upper surface of the roof slab is 50-100 mm.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the foundation hole is cut on the original roof floor slab, the cast-in-place concrete pier is poured in the foundation hole, and the screw rods on the reinforced concrete protection layer are connected with the steel wires wound on the screw rods through the reinforced concrete protection layer, so that the installation foundation and the original roof floor slab are reliably connected into a whole, and the support and wind-proof lifting capacity is good.
Because the cast-in-place concrete pier is reliably connected with the roof floor slab, the weight requirement on the cast-in-place concrete pier is small, and the volume of the cast-in-place concrete pier is small.
When the support of the photovoltaic system is fixed, the support legs of the support are fixedly connected with the cast-in-place concrete pier through the bolts, and the construction such as punching in the installation process is performed on the cast-in-place concrete pier, so that the waterproof layer of the roof floor is not damaged, and the risk of water leakage of the roof can be well avoided.
Therefore, the utility model solves the problems of large volume and weight of the counterweight block, poor wind resistance, easy construction and roof water leakage and the like of the traditional ballast type and concrete foundation pile foundation type.
Drawings
FIG. 1 is a schematic cross-sectional view of a rooftop photovoltaic installation base of an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of a roof photovoltaic installation foundation of an embodiment of this utility model when cast-in-place concrete piers have not been poured;
FIG. 3 is a schematic view of the structure of a screw according to an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of a roof photovoltaic installation foundation of an embodiment of this utility model when cast-in-place concrete piers have not been poured;
Fig. 5 is a schematic view of the structure of the roof photovoltaic installation foundation of the embodiment of the present utility model when fixedly connected to the legs of the support of the photovoltaic system.
The meaning of the reference numerals in the figures:
1-casting a concrete pier in situ; 101-upper part of cast-in-place concrete pier; 2-a screw; 201-bending part; 3-steel wire; 4-basal wells; 5-floor slab; 501-floor tiles; 502-a mortar layer; 503-a reinforced concrete protective layer; 504-floor insulation layer; 505-a waterproof layer; 506-structural floor layer; 6-supporting legs; 7-fixing bolts.
Detailed Description
The utility model is further described below with reference to examples.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Examples:
As shown in fig. 1 to 4, the roof photovoltaic installation foundation of the present embodiment is composed of a foundation hole 4, a plurality of screws 2, a steel wire 3 and a cast-in-place concrete pier 1.
The floor 5 of the roof comprises, in order from top to bottom, floor tiles 501, a mortar layer 502, a reinforced concrete protection layer 503, a floor insulation layer 504, a waterproof layer 505 and a structural floor layer 506, which is the floor structure of a conventional roof. Wherein the thickness of the thinnest part of the reinforced concrete protective layer 503 is not less than 30mm, and the thickness of the thinnest part of the floor heat insulating layer 504 is not less than 10mm.
The foundation hole 4 is a hole cut into the roof slab 5 above the reinforced concrete protection layer 503 of the roof slab 5, and the foundation hole 4 of this embodiment has a quadrangular shape, and the shape of the foundation hole 4 may have a polygonal shape or other structures.
The screw rod 2 is arranged in the foundation hole 4, and the screw rod 2 is planted on the reinforced concrete protection layer on the bottom surface of the foundation hole 4. The mode of planting the muscle adopts conventional mode, adopts planting the muscle to glue and connects the lower extreme of screw rod 2 and plants muscle hole as an organic whole for example. The screws 2 of the present embodiment are arranged near the edge of the base hole 4, and two screws 2 are arranged on the side of each side of the base hole 4, respectively. Wherein the steel wire 3 is wound around the screw 2 at least one turn.
Cast-in-place concrete pier 1 is poured in foundation hole 4, and screw rod 2 and steel wire 3 are all buried in cast-in-place concrete pier 1, and the upper portion 101 of cast-in-place concrete pier 1 protrusion is above roof floor 5, and the length and the width of upper portion 101 of cast-in-place concrete pier 1 are all greater than the length and the width of foundation hole 4. The preferable scheme is as follows: the difference between the length of the upper part of the cast-in-place concrete pier 1 and the length of the foundation hole 4 is not less than 30mm, the difference between the width of the upper part of the cast-in-place concrete pier 1 and the width of the foundation hole 4 is not less than 30mm, and the height difference between the upper surface of the cast-in-place concrete pier 1 and the upper surface of the roof floor 5 is 50-100 mm.
As shown in fig. 3, the upper end of the screw 2 of the present embodiment is provided with a bending portion 201, and the bending portion 201 is bent in the outer direction of the base hole. The connection of the screw 2 and the cast-in-place concrete pier 1 is reinforced by the bent portion 201.
Wherein, the depth of the bar planting of the screw rod 2 is not less than 35mm; the screw rod 2 is made of general steel for construction, and the diameter of the screw rod is not less than 6mm; the steel wire 3 is a building structural steel material, and the diameter of the steel wire is not less than 1.5mm; the strength grade of the concrete of the cast-in-place concrete pier 1 is not lower than C20.
The roof photovoltaic installation foundation does not damage the waterproof layer 505 of the original roof floor 5, combines the cast-in-place concrete pier 1 and the floor 5 of the roof into a whole through the combination of the foundation holes 4, the screw rods 2 and the steel wires 3, has good supporting and wind-proof lifting capabilities, and also has small requirements on the weight and the volume of the cast-in-place concrete pier 1. As shown in fig. 5, when the photovoltaic system is installed, the photovoltaic system is fixedly connected with the upper surface of the cast-in-place concrete pier 1 through the support legs 6 of the support frame by the fixing bolts 7, and of course, the roof is provided with a plurality of roof photovoltaic installation foundations according to the installation requirements.
The roof photovoltaic installation foundation provided by the utility model can be realized by a person skilled in the art through appropriately changing links such as materials, structural design and the like by referring to the content of the disclosure. The products and methods of the present utility model have been described by way of example. It will be apparent to those skilled in the relevant art that modifications and variations can be made in the methods and products herein, or in the appropriate combination and implementation of the techniques without departing from the spirit and scope of the present utility model. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be included within the spirit, scope and content of the utility model. All the schemes realized by equivalent substitution or equivalent transformation form fall within the protection scope of the utility model.
Claims (10)
1. A roof photovoltaic installation basis, its characterized in that: the reinforced concrete pier comprises a foundation hole, a plurality of screws, steel wires and cast-in-place concrete piers, wherein the foundation hole is a hole which is cut on a roof floor slab and is arranged on a reinforced concrete protection layer of the roof floor slab, the screw is planted with a rib on the reinforced concrete protection layer of the bottom surface of the foundation hole, the steel wires are wound on the screws, the cast-in-place concrete piers are poured in the foundation hole, and the upper parts of the cast-in-place concrete piers are protruded on the roof floor slab.
2. The rooftop photovoltaic installation foundation of claim 1, wherein: the screw is arranged close to the edge of the base hole, and the steel wire is wound on the screw at least one turn.
3. The rooftop photovoltaic installation foundation of claim 1, wherein: the upper end of the screw rod is provided with a bending part.
4. The rooftop photovoltaic installation foundation of claim 1, wherein: the length and the width of the upper part of the cast-in-place concrete pier are both greater than those of the foundation hole.
5. The rooftop photovoltaic installation base of claim 4, wherein: the difference between the length of the upper part of the cast-in-place concrete pier and the length of the foundation hole is not less than 30mm, and the difference between the width of the upper part of the cast-in-place concrete pier and the width of the foundation hole is not less than 30mm.
6. The rooftop photovoltaic installation foundation of claim 1, wherein: the depth of the planted bars of the screw rod is not less than 35mm.
7. The rooftop photovoltaic installation foundation of claim 1, wherein: the diameter of the screw rod is not smaller than 6mm.
8. The rooftop photovoltaic installation foundation of claim 1, wherein: the diameter of the steel wire is not less than 1.5mm.
9. The rooftop photovoltaic installation foundation of claim 1, wherein: the strength grade of the concrete of the cast-in-place concrete pier is not lower than C20.
10. The rooftop photovoltaic installation foundation of claim 1, wherein: the height difference between the upper surface of the cast-in-place concrete pier and the upper surface of the roof floor slab is 50-100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129074.2U CN221030277U (en) | 2023-08-08 | 2023-08-08 | Roof photovoltaic installation basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129074.2U CN221030277U (en) | 2023-08-08 | 2023-08-08 | Roof photovoltaic installation basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221030277U true CN221030277U (en) | 2024-05-28 |
Family
ID=91133191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322129074.2U Active CN221030277U (en) | 2023-08-08 | 2023-08-08 | Roof photovoltaic installation basis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221030277U (en) |
-
2023
- 2023-08-08 CN CN202322129074.2U patent/CN221030277U/en active Active
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