An assembled photovoltaic support fixing clamp

Abstract

The utility model discloses an assembly type photovoltaic support fixing clamp relates to fixing clamp technical field, include: U -shaped clamp, photovoltaic support stand, fastening bolt and stand bottom plate, the photovoltaic support stand is located the top of stand bottom plate, the top of stand bottom plate is installed with stand stiffening rib a, the top of stand bottom plate is installed with stand stiffening rib b, the outer wall of U -shaped clamp is installed with limit and anti -fall bolt. The utility model discloses through being installed with clamp mechanism, will U -shaped clamp along house steel beam upper flange by from outside to inside and enter, make stand bottom plate and house steel beam upper flange all be in the U -shaped groove of U -shaped clamp, ensure that the inside of U -shaped clamp lower steel plate with house steel beam upper flange contact surface maximum, alternately tighten two fastening bolts on each U -shaped clamp, while U -shaped clamp lower steel plate and house steel beam upper flange top tight, and U -shaped clamp will not move to the outside of steel beam and lead to U -shaped clamp fastening force weakening or failure.

Description

Technical Field

[0001] This utility model relates to the field of fixing fixture technology, specifically to an assembled photovoltaic bracket fixing fixture. Background Technology

[0002] Distributed photovoltaic (PV) rooftop systems are a technology that installs solar photovoltaic (PV) power generation systems on building roofs, and has received widespread attention and application in recent years. Industrial plant roofs, with their large area, minimal shading, ample sunlight, and lack of ground space requirements, are ideal locations for PV systems. PV power generation produces no pollutants or greenhouse gases, helping to reduce carbon footprints and protect the environment. Through PV power generation, users can significantly reduce electricity costs and dependence on traditional energy sources by connecting to the grid at multiple points and using the generated electricity themselves. They can also feed surplus electricity into the grid, creating economic benefits for themselves. The overall value of a building can also be enhanced after installing a PV system. A distributed PV rooftop system mainly consists of solar panels, inverters, a power distribution system, and energy storage devices. Solar panels convert sunlight into electricity through the photovoltaic effect. As a crucial component of a distributed PV system, solar panels are numerous and widely distributed. A secure connection between the PV support structure and the roof is vital for the safety and lifespan of the PV system. For reinforced concrete roofs, embedded parts can be used to securely connect the PV support structure to the roof, ensuring the safety of the connection. However, when installing photovoltaic (PV) panel supports on existing light steel roofs, the common practice is to connect the PV panel supports to the light steel roof purlins or (using screws or clamps) directly to the profiled roof panels. All of these methods involve fixing the PV supports to the factory's enclosure structure. The enclosure structure bears its own weight and wind loads, and both the PV panels and the light steel enclosure structure are sensitive to wind loads. Fixing the PV supports to the enclosure structure is not secure and poses a safety hazard. In the long run, this will adversely affect the safety of the factory's enclosure structure and the lifespan of the PV system, and in severe cases, may even damage the factory's enclosure structure.

[0003] Patent document CN222283111U discloses a photovoltaic bracket installation and fixing fixture, which includes: a mounting plate and a connecting plate; an installation mechanism that penetrates through the connecting plate; wherein the installation mechanism includes: a support rod that penetrates through the surfaces of the photovoltaic bracket and two sets of connecting plates; a pressing rod that penetrates through the support rod; and a second spring at one end of the pressing rod. In this photovoltaic bracket installation and fixing fixture, the support rod passes through a slot opened on the surface of the photovoltaic bracket and two sets of connecting plates. With the cooperation of the thread and nut block, the photovoltaic bracket and two sets of connecting plates can be fixed. At the same time, under the action of axial force, the abutment rod opens, so that it is triangularly distributed with one end of a set of connecting plates to achieve a limiting effect. When disassembling, pressing the pressing rod will retract the abutment rod for disassembly, which is convenient for subsequent disassembly and maintenance, and also convenient for installation.

[0004] However, the photovoltaic bracket installation and fixing clamps in the aforementioned publicly available documents are mainly designed to facilitate subsequent disassembly and maintenance, while also being easy to install. This ensures a stable connection between the photovoltaic bracket and the main structure without affecting the function of the original building envelope.

[0005] In view of this, it is necessary to develop a clamping mechanism that can ensure a stable connection between the photovoltaic panel support and the main structure without affecting the function of the original building envelope. Utility Model Content

[0006] The purpose of this utility model is to provide a prefabricated photovoltaic bracket fixing clamp to solve the technical problem of improving the stable connection of the prefabricated photovoltaic bracket fixing clamp mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated photovoltaic bracket fixing clamp, comprising: a building steel beam and a U-shaped clamp, wherein the top of the building steel beam is provided with a clamping mechanism, the clamping mechanism being used to ensure a stable connection between the photovoltaic panel bracket and the main structure without affecting the function of the original enclosure structure of the factory building;

[0008] The clamping mechanism includes a photovoltaic support column, fastening bolts, and a column base plate. The U-shaped clamp is located on top of the building's steel beam. The top of the U-shaped clamp is equipped with fastening bolts. The column base plate is installed on the inner wall of the U-shaped clamp. The photovoltaic support column is located on top of the column base plate. A column stiffening rib a is installed on top of the column base plate. A column stiffening rib b is installed on top of the column base plate, and the column stiffening rib b is located between the outer walls of the U-shaped clamp. Limiting and anti-fall bolts are installed on the outer wall of the U-shaped clamp.

[0009] Preferably, the photovoltaic support column is fastened to the roof steel beam by fastening bolts and U-shaped clamps, ensuring that the photovoltaic support has higher safety and stability when subjected to upward loads.

[0010] Preferably, nuts are pre-welded onto the U-shaped clamp, and the fastening bolts are tightened so that the photovoltaic column base plate and the upper flange of the building steel beam are together locked in the U-shaped groove of the U-shaped clamp, thereby achieving a firm connection between the photovoltaic base plate and the steel beam.

[0011] Preferably, the U-shaped clamp is connected to the stiffening rib b of the column by limiting and anti-fall bolts to ensure that the clamp fastening effect is durable and stable.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the installation of a clamping mechanism, ensures a stable connection between the photovoltaic panel support and the main structure without affecting the function of the original building enclosure structure. First, according to the photovoltaic panel layout drawings, the photovoltaic support column is placed at the designed position on the steel beam of the building, with the column base plate flush with the outer side of the steel beam. The U-shaped clamp is inserted from the outside to the inside along the upper flange of the steel beam, so that both the column base plate and the upper flange of the steel beam are within the U-shaped groove of the clamp. The inner side of the U-shaped groove presses against the column base plate to the upper flange of the steel beam, ensuring maximum contact between the inner side of the lower steel plate of the U-shaped clamp and the upper flange of the steel beam. The two fastening bolts on each U-shaped clamp are tightened alternately, so that the fastening bolts press against the column base plate, and at the same time, the lower steel plate of the U-shaped clamp presses against the upper flange of the steel beam. When the photovoltaic support column bears a vertical upward load, it is transferred to the steel beam through the column base plate, fastening bolts, and U-shaped clamp. After the U-shaped clamps on both sides of each column stiffening rib b are installed, limit and anti-fall bolts are used to connect and tighten the column stiffening rib b and the U-shaped clamps on both sides in series, so that the U-shaped clamps will not move to the outside of the steel beam, which would weaken or cause the U-shaped clamps to fail. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the fixing clamp of this utility model;

[0015] Figure 2 This is a schematic diagram of the mounting plane structure of the fixing clamp of this utility model;

[0016] Figure 3 This is a schematic diagram of the side structure of the fixing clamp of this utility model;

[0017] Figure 4 This is a schematic diagram of the front part of the fixing clamp of this utility model.

[0018] In the diagram: 1. U-shaped clamp; 2. Fastening bolt; 3. Limiting and anti-fall bolt; 4. Photovoltaic support column; 5. Column base plate; 6. Column stiffening rib a; 7. Column stiffening rib b; 8. Building steel beam. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A prefabricated photovoltaic (PV) bracket fixing fixture includes: a building steel beam 8 and a U-shaped clamp 1. The top of the building steel beam 8 is equipped with a clamping mechanism to ensure a stable connection between the PV bracket and the main structure without affecting the function of the original building enclosure. The clamping mechanism includes a PV bracket column 4, fastening bolts 2, and a column base plate 5. The U-shaped clamp 1 is located on top of the building steel beam 8, and the top of the U-shaped clamp 1 is equipped with fastening bolts 2. The column base plate 5 is installed on the inner wall of the U-shaped clamp 1. The PV bracket column 4 is located on top of the column base plate 5. A column stiffening rib a6 is installed on the top of the column base plate 5, and a column stiffening rib b7 is installed on the top of the column base plate 5. The column stiffening rib b7 is located between the outer walls of the U-shaped clamp 1. Limited spacers are installed on the outer walls of the U-shaped clamp 1. The photovoltaic support column 4 is securely connected to the roof steel beam via fastening bolts 2 and U-shaped clamps 1, ensuring higher safety and stability when the photovoltaic support is subjected to upward loads. Nuts need to be pre-welded to the U-shaped clamps 1. Tightening the fastening bolts 2 ensures that the photovoltaic column base plate 5 and the upper flange of the roof steel beam 8 are both locked in the U-shaped groove of the U-shaped clamps 1, achieving a firm connection between the photovoltaic base plate and the steel beam. The U-shaped clamps 1 are connected to the column stiffening ribs b7 via the limit bolts 3, ensuring the long-lasting and stable fastening effect of the clamps. Currently, the common practice for installing photovoltaic panel supports on light steel roofs is to connect the photovoltaic panel supports to the light steel roof purlins or (using screws or clamps) directly connect the photovoltaic support to the profiled roof panels. All of the above photovoltaic support fixing methods... The photovoltaic (PV) brackets are fixed to the factory building's enclosure structure. This enclosure structure bears the PV panel's weight and wind loads. However, both the PV panels and the lightweight steel enclosure structure are sensitive to wind loads. Fixing the PV brackets to the enclosure structure is not secure and poses a safety hazard. Over time, this will adversely affect the safety of the factory building's enclosure structure and the lifespan of the PV system, and in severe cases, may even damage the factory's enclosure structure. Therefore, an improvement is needed. A matching U-shaped clamp 1 is installed at the bottom of the newly added PV bracket column 4. When installing the PV bracket column 4, the fastening bolts 2 on the U-shaped clamp 1 are tightened to firmly connect the PV bracket column 4 to the building's steel beam 8. When the PV panel is subjected to a positive wind load, the load is directly transferred to the roof steel beam through the PV column. The load transfer path is: positive wind load → PV panel → Photovoltaic support frame → Photovoltaic column → Building steel beam 8; When the photovoltaic panel is subjected to negative wind load, the buoyancy of the photovoltaic support frame is transferred to the roof steel beam through the assembled U-shaped clamp 1 at the bottom of the photovoltaic support column 4. The load transfer path of the photovoltaic panel is: negative wind load → photovoltaic panel → photovoltaic support frame → photovoltaic column → U-shaped clamp 1 → building steel beam 8. The photovoltaic support column 4, column stiffening rib a6, column stiffening rib b7 and column base plate 5 are pre-welded integral components. Column stiffening rib a6 and column stiffening rib b7 enhance the connection between the photovoltaic support column 4 and the column base plate 5 and improve the stability of the overall component. First, according to the layout drawing of the photovoltaic panel, the photovoltaic support column 4 is placed in the designed position of the building steel beam 8, and the column base plate 5 is flush with the outer side of the building steel beam 8.Insert the U-shaped clamp 1 from the outside to the inside along the upper flange of the steel beam 8, so that both the column base plate 5 and the upper flange of the steel beam 8 are in the U-shaped groove of the U-shaped clamp 1. The inside of the U-shaped groove is pressed against the column base plate 5 to the upper flange of the steel beam 8, ensuring that the contact surface between the inner side of the lower steel plate of the U-shaped clamp 1 and the upper flange of the steel beam 8 is maximized. Tighten the two fastening bolts 2 on each U-shaped clamp 1 alternately, so that the fastening bolts 2 are pressed against the column base plate 5. At the same time, the lower steel plate of the U-shaped clamp 1 is pressed against the upper flange of the steel beam 8. When the photovoltaic support column 4 bears the vertical upward load, it is transferred to the steel beam 8 through the column base plate 5, the fastening bolts 2 and the U-shaped clamp 1. After the U-shaped clamps 1 on both sides of each column stiffening rib b7 are installed, the column stiffening rib b7 and the U-shaped clamps 1 on both sides are connected in series and tightened with limit and anti-fall bolts 3 so that the U-shaped clamps 1 will not move to the outside of the steel beam, which would weaken or cause the U-shaped clamps 1 to fail.

[0023] Working principle: Currently, photovoltaic (PV) panel brackets on light steel roofs are typically connected to the roof purlins or directly to the profiled roof panels (using screws or clamps). Both methods fix the PV brackets to the building's enclosure structure, which bears the weight and wind load. Since both the PV panels and the enclosure structure are sensitive to wind loads, fixing the brackets to the enclosure structure is not secure and poses a safety hazard. Over time, this can negatively impact the safety of the building's enclosure structure and the lifespan of the PV system, and in severe cases, even damage the enclosure structure. Therefore, an improvement is needed. A matching U-shaped clamp 1 is installed at the bottom of the newly added PV bracket column 4. When installing the PV bracket column 4, the fastening bolts 2 on the U-shaped clamp 1 are tightened to securely connect the PV bracket column 4 to the building's steel beam 8. When the PV panel is subjected to positive wind load... When subjected to a load, the load is directly transferred to the roof steel beam through the photovoltaic column. The load transfer path is: positive wind load → photovoltaic panel → photovoltaic bracket → photovoltaic column → building steel beam 8. When the photovoltaic panel is subjected to a negative wind load, the buoyancy on the photovoltaic support is transferred to the roof steel beam through the assembled U-shaped clamp 1 at the bottom of the photovoltaic bracket column 4. The load transfer path of the photovoltaic panel is: negative wind load → photovoltaic panel → photovoltaic bracket → photovoltaic column → U-shaped clamp 1 → building steel beam 8. The photovoltaic bracket column 4, column stiffening ribs a6 and b7 and column base plate 5 are pre-welded integral components. The column stiffening ribs a6 and b7 enhance the connection between the photovoltaic bracket column 4 and the column base plate 5 and improve the stability of the overall component. First, according to the layout drawing of the photovoltaic panel, the photovoltaic bracket column 4 is placed at the designed position of the building steel beam 8, and the column base plate 5 is flush with the outer side of the building steel beam 8. Insert the U-shaped clamp 1 from the outside to the inside along the upper flange of the steel beam 8, so that both the column base plate 5 and the upper flange of the steel beam 8 are in the U-shaped groove of the U-shaped clamp 1. The inside of the U-shaped groove is pressed against the column base plate 5 to the upper flange of the steel beam 8, ensuring that the contact surface between the inner side of the lower steel plate of the U-shaped clamp 1 and the upper flange of the steel beam 8 is maximized. Tighten the two fastening bolts 2 on each U-shaped clamp 1 alternately, so that the fastening bolts 2 are pressed against the column base plate 5. At the same time, the lower steel plate of the U-shaped clamp 1 is pressed against the upper flange of the steel beam 8. When the photovoltaic support column 4 bears the vertical upward load, it is transferred to the steel beam 8 through the column base plate 5, the fastening bolts 2 and the U-shaped clamp 1. After the U-shaped clamps 1 on both sides of each column stiffening rib b7 are installed, the column stiffening rib b7 and the U-shaped clamps 1 on both sides are connected in series and tightened with limit and anti-fall bolts 3 so that the U-shaped clamps 1 will not move to the outside of the steel beam, which would weaken or cause the U-shaped clamps 1 to fail.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fabricated photovoltaic racking fixture clamp, characterized by, Includes: a building steel beam (8) and a U-shaped clamp (1). The top of the building steel beam (8) is provided with a clamping mechanism. The clamping mechanism is used to ensure a stable connection between the photovoltaic panel bracket and the main structure without affecting the function of the original enclosure structure of the factory building. The clamping mechanism includes a photovoltaic bracket column (4), fastening bolts (2) and a column base plate (5). The U-shaped clamp (1) is located on the top of the building steel beam (8). The top of the U-shaped clamp (1) is provided with fastening bolts (2). The inner wall of the U-shaped clamp (1) is equipped with a column base plate (5). The photovoltaic bracket column (4) is located on the top of the column base plate (5). The top of the column base plate (5) is equipped with a column stiffening rib a (6). The top of the column base plate (5) is equipped with a column stiffening rib b (7). The column stiffening rib b (7) is located between the outer walls of the U-shaped clamp (1). The outer wall of the U-shaped clamp (1) is equipped with limit and anti-fall bolts (3).

2. The assembled photovoltaic support fixing clamp according to claim 1, characterized in that: The photovoltaic support column (4) is fastened to the roof steel beam by fastening bolts (2) and U-shaped clamps (1), ensuring that the photovoltaic support has higher safety and stability when subjected to upward load.

3. The assembled photovoltaic support fixing clamp according to claim 1, characterized in that: Nuts need to be pre-welded onto the U-shaped clamp (1), and the fastening bolts (2) should be tightened so that the photovoltaic column base plate (5) and the upper flange of the house steel beam (8) are together locked in the U-shaped groove of the U-shaped clamp (1), so as to achieve a firm connection between the photovoltaic base plate and the steel beam.

4. The assembled photovoltaic support fixing clamp according to claim 1, characterized in that: The U-shaped clamp (1) is connected to the column stiffening rib b (7) by the limit and anti-fall bolt (3) to ensure the clamp's fastening effect is durable and stable.

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