Roof photovoltaic base

Abstract

The utility model discloses a roof photovoltaic base which comprises a precast concrete block and a photovoltaic support. Internal steel bars used for counterweight and reinforcement are arranged in the prefabricated concrete block, an inserting rod and a screw rod used for external connection are arranged on the upper portion of the prefabricated concrete block, the upper portion of the inserting rod extends out of the prefabricated concrete block and is provided with a connecting ring, and the lower portion of the inserting rod is embedded in the prefabricated concrete block and connected with the internal steel bars. The upper part of the screw extends out of the precast concrete block, and the lower part is pre-embedded in the precast concrete block and connected with the internal steel bar; and a chassis is arranged at the bottom end of the photovoltaic bracket, is placed at the top of the prefabricated concrete block, penetrates through the screws in a matched manner and is fixed through nuts. The base does not need cast-in-place concrete, can be rapidly installed, does not damage the original structure of the roof, and can be replaced and recycled.

Description

Technical Field

[0001] The utility model relates to photovoltaic installation, in particular to a roof photovoltaic base. Background Art

[0002] When photovoltaics are placed on the roof, they need to be installed reliably and stably to avoid displacement and falling. Currently, photovoltaic racks are fixed on the roof using cast-in-place concrete. Cast-in-place concrete not only has a long maintenance cycle and is not conducive to quick installation, but also damages the original structure of the roof, making it difficult to maintain and renovate the roof later. Utility Model Content

[0003] The purpose of the utility model is to provide a roof photovoltaic base that does not require cast-in-place concrete, can be quickly installed without damaging the original structure of the roof, and can be replaced and recycled.

[0004] The technical solution adopted in this utility model is:

[0005] A rooftop photovoltaic base comprises a precast concrete block and a photovoltaic bracket; the interior of the precast concrete block is provided with internal steel bars for counterweight and reinforcement, the upper portion is provided with an insertion rod and a screw rod for external connection, the upper portion of the insertion rod extends out of the precast concrete block and is installed with a connecting ring, the lower portion is pre-embedded in the precast concrete block and connected to the internal steel bars, the upper portion of the screw rod extends out of the precast concrete block, the lower portion is pre-embedded in the precast concrete block and connected to the internal steel bars; the bottom end of the photovoltaic bracket is provided with a chassis, which is placed on the top of the precast concrete block and is fixed by nuts after passing through each screw rod.

[0006] Preferably, the internal reinforcement includes main reinforcement and connecting reinforcement welded together, the main reinforcement is welded into a grid shape by a plurality of reinforcements, and the connecting reinforcement connects the inserted rod and the main reinforcement as well as the screw rod and the main reinforcement.

[0007] Preferably, the internal reinforcement is made of on-site scrap steel bars.

[0008] Preferably, the precast concrete blocks are cast in two layers, with the lower layer of precast concrete blocks being wider than the upper layer of precast concrete blocks.

[0009] Preferably, the precast concrete block is in the shape of a cube or a combination of cubes.

[0010] Preferably, the screw rod, the insert rod and the connecting ring are made of stainless steel or galvanized material.

[0011] The beneficial effects of the utility model are:

[0012] The entire base is a prefabricated product, requiring no cast-in-place concrete. It can be installed quickly without damaging the original roof structure and can be mass-produced, reducing costs. The prefabricated concrete blocks and photovoltaic brackets in the base are detachably connected, so both can be replaced and recycled separately. The internal steel bars in the base can both increase weight and ensure stability, and also increase the strength of the prefabricated concrete blocks. The connecting rings in the base can be connected to the connecting rings of other bases through rods, ropes, basket bolts, etc., to improve overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a structural diagram of the roof photovoltaic base in an embodiment of the present utility model.

[0015] In the figure: 1-lower precast concrete block; 2-upper precast concrete block; 3-connecting steel bar; 4-nut; 5-chassis; 6-photovoltaic bracket; 7-screw; 8-connecting ring; 9-insertion rod; 10-main steel bar. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0019] The features and performance of the present application are further described in detail below with reference to the embodiments.

[0020] Example 1

[0021] This embodiment discloses a rooftop photovoltaic base, including precast concrete blocks, internal steel bars, plug rods 9, connecting rings 8, screws 7, photovoltaic brackets 6 and chassis 5; wherein, Figure 1 As shown:

[0022] Precast concrete blocks are preferably cast in two layers, with the lower precast concrete blocks 1 being wider than the upper precast concrete blocks 2. This is because, given the same casting volume, this arrangement allows the lower part of the precast concrete blocks to be wider (better anti-overturning) while also maintaining a certain height (meeting the photovoltaic installation height requirements). Furthermore, the shape of the precast concrete blocks is preferably a square or a combination of squares, which eliminates the need for curved formwork and facilitates casting.

[0023] Internal steel bars are located inside precast concrete blocks for counterweight and reinforcement. Internal steel bars are preferably made of on-site scrap steel bars to save costs.

[0024] The insertion rod 9 is provided on the upper part of the precast concrete block, the upper part of the insertion rod 9 extends out of the precast concrete block, and the lower part is embedded in the precast concrete block and connected to the internal steel bars;

[0025] The connecting ring 8 is installed on the upper part of the insertion rod 9;

[0026] The screw rod 7 is provided on the upper part of the precast concrete block. The upper part of the screw rod 7 extends out of the precast concrete block, and the lower part is embedded in the precast concrete block and connected to the internal steel bars. The screw rod 7 is used for external connection.

[0027] The photovoltaic bracket 6 is used to install the photovoltaic panels;

[0028] The chassis 5 is arranged at the bottom end of the photovoltaic support 6. The chassis 5 is placed on the top of the precast concrete block and is fixed by nuts 4 after passing through each screw 7.

[0029] The entire base is a prefabricated product, which does not require cast-in-place concrete. It can be installed quickly without damaging the original structure of the roof. Moreover, it can be produced in large quantities, which reduces costs. The prefabricated concrete blocks and photovoltaic brackets 6 in the base are detachably connected, so both can be replaced and recycled separately. The internal steel bars in the base can not only increase the weight and ensure stability, but also increase the strength of the prefabricated concrete blocks. The connecting ring 8 in the base can be connected to the connecting rings 8 of other bases through rods, ropes, basket bolts, etc., to improve the overall stability.

[0030] When making this embodiment: first set the lower template, pour the lower concrete, insert the internal steel bars before the lower concrete begins to set, and after the lower concrete solidifies, set the upper template, connect the inserted rod 9 and the screw 7 to the internal steel bars, and then pour the upper concrete.

[0031] like Figure 1As shown, in this embodiment, the internal steel bars include a main steel bar 10 and a connecting steel bar 3 welded together. The main steel bar 10 is welded into a grid shape by several steel bars. The connecting steel bar 3 connects the inserted rod 9 and the main steel bar 10 as well as the screw rod 7 and the main steel bar 10. The main steel bar 10 ensures the counterweight and reinforcement requirements, and the connecting steel bar 3 can enhance the installation strength of the inserted rod 9 and the screw rod 7.

[0032] In this embodiment, the screw rod 7, the insert rod 9, and the connecting ring 8 are preferably made of stainless steel or galvanized material to avoid corrosion and increase service life.

[0033] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. A rooftop photovoltaic base, characterized by: It includes a precast concrete block and a photovoltaic bracket; the interior of the precast concrete block is provided with internal steel bars for counterweight and reinforcement, the upper part is provided with an insertion rod and a screw for external connection, the upper part of the insertion rod extends out of the precast concrete block and is installed with a connecting ring, the lower part is pre-embedded in the precast concrete block and connected to the internal steel bars, the upper part of the screw rod extends out of the precast concrete block, the lower part is pre-embedded in the precast concrete block and connected to the internal steel bars; the bottom end of the photovoltaic bracket is provided with a chassis, which is placed on the top of the precast concrete block and is fixed by nuts after passing through each screw rod.

2. The rooftop photovoltaic base according to claim 1, characterized in that: The internal reinforcement includes main reinforcement and connecting reinforcement welded together. The main reinforcement is welded into a grid shape by several reinforcements. The connecting reinforcement connects the inserted rod and the main reinforcement as well as the screw and the main reinforcement.

3. The rooftop photovoltaic base according to claim 1, characterized in that: Internal reinforcement uses scrap steel bars from on-site.

4. The rooftop photovoltaic base according to claim 1, characterized in that: The precast concrete blocks are cast in two layers, with the lower precast concrete blocks being wider than the upper precast concrete blocks.

5. The rooftop photovoltaic base according to claim 1, characterized in that: The shape of precast concrete blocks is a square or a combination of squares.

6. The rooftop photovoltaic base according to claim 1, characterized in that: The screw, plug rod and connecting ring are made of stainless steel or galvanized material.

Images