Photovoltaic racking fastening device

Abstract

The utility model discloses a kind of photovoltaic support fastening devices, belong to photovoltaic support technical field, including photovoltaic support ontology, the top of photovoltaic support ontology is equipped with photovoltaic board, the bottom of photovoltaic support ontology is fixedly connected with base, the bottom of base is equipped with concrete pier, through the detachable design of base and concrete pier, matching bottom plate sliding L-shaped locking plate, sliding sleeve and control and connecting component, replace traditional bolt fixed mode, without accurate drilling or pre-buried when installing, adjusting control piece can drive L-shaped locking plate and concrete pier to be clamped and fastened by connecting piece, simplify installation process, improve installation efficiency, avoid the increase of man-hour caused by traditional deviation, simultaneously, when later maintenance or adjustment, reverse adjustment can be released clamping, avoid the problem that bolt rust appears difficult to disassemble, and without damaging fastener, not only reduce maintenance cost and protect structural integrity, also provide convenience for photovoltaic support disassembly and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic bracket technology, and in particular to a photovoltaic bracket fastening device. Background Technology

[0002] Photovoltaic (PV) mounting systems are the core structural system that supports and secures photovoltaic (PV) modules. Widely used in PV power plants, their primary function is to ensure the PV modules can stably receive solar energy over a long period and efficiently convert this energy into electricity. They typically consist of metal profiles, connectors, and adjustment components; in some special applications, tracking systems are also included. During design and installation, PV mounting systems must consider the geographical conditions, geological structure, and PV module specifications of the installation site. Precise calculations determine the installation angle, spacing, and wind and load-bearing capacity. They must also possess corrosion and aging resistance to ensure long-term reliable operation in harsh outdoor environments, guaranteeing the safety, stability, and power generation efficiency of the PV system. They serve as a crucial bridge connecting the PV modules to the mounting foundation.

[0003] In existing technologies, the fastening connection between the base of a photovoltaic support and the concrete pier mostly relies on traditional fastener combinations, which are mainly divided into two categories: one is to use expansion bolts to penetrate the base and the surface of the concrete pier, and use the squeezing action of the bolt expansion head inside the cement to achieve fixation; the other is to pre-embed U-bolts or anchor bolts during the prefabrication stage of the concrete pier, and after the cement has cured and formed, the base is fitted onto the outside of the pre-embedded bolts, and then tightened and fixed by a combination of nuts, flat washers, and spring washers.

[0004] However, these traditional fastening methods have low installation efficiency in practical applications. The drilling depth and diameter of the expansion bolts need to be precisely matched with the bolt specifications, and the positional accuracy of the pre-embedded bolts needs to be strictly controlled during the prefabrication stage. Once a deviation occurs, it is necessary to re-drill or adjust the position of the pier, which increases the on-site construction time and is relatively troublesome to operate. At the same time, after long-term outdoor use, the bolts and nuts are prone to corrosion due to rainwater penetration and air oxidation, making them difficult to disassemble during later maintenance. Cutting tools are required to destroy the fasteners, which not only increases maintenance costs but also causes structural damage to the base or concrete pier, thus bringing inconvenience to the installation and disassembly of photovoltaic brackets. Utility Model Content

[0005] The main purpose of this utility model is to provide a photovoltaic bracket fastening device that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A photovoltaic bracket fastening device includes a photovoltaic bracket body, on the top of which a photovoltaic panel is mounted;

[0008] The bottom of the photovoltaic support body is fixedly connected to a base, and the bottom of the base is provided with a concrete block. The base and the concrete block are detachably connected.

[0009] The base is fixedly connected to a base plate at its bottom. Two L-shaped locking plates are slidably connected to the bottom of the base plate. The L-shaped locking plates are engaged with a groove on the top of the concrete pier. A sliding sleeve is fitted on the outer wall of the base. A control component for controlling the up and down movement of the sliding sleeve is installed on the outer wall of the base.

[0010] The sliding sleeve is provided with connecting parts on both sides for controlling the horizontal movement of the L-shaped locking plate.

[0011] As a preferred technical solution of this utility model, the control component includes a housing installed on the outer wall of the base, a screw installed inside the housing, a first rotating rod fixedly connected to the upper and lower ends of the screw, the first rotating rod being rotatably connected to the first rotating holes opened at the top and bottom of the housing, a knob for manually driving the first rotating rod to rotate is also installed on the top of the upper first rotating rod, a connecting block is fixedly connected to the front end of the sliding sleeve, and a threaded hole for threaded connection with the screw is opened on the top of the connecting block.

[0012] As a preferred technical solution of this utility model, a slider is installed on the top of the L-shaped locking plate, and the slider is slidably connected to the sliding opening opened on the top of the base plate. Grooves for accommodating the L-shaped locking plate are opened on both sides of the concrete pier. A limiting groove is opened on the inner side wall of the groove for the horizontal part of the L-shaped locking plate to be inserted and fitted, so as to realize the snap-fit ​​and fastening with the concrete pier.

[0013] As a preferred technical solution of this utility model, the connecting member includes a concave plate and a connecting rod. The concave plate is fixedly connected to both sides of the sliding sleeve and the top of the slider, respectively. The concave plate has a second rotating hole on both sides. A set of second rotating rods is fixedly connected to the upper and lower ends of the connecting rod. The second rotating rods are rotatably connected to the second rotating holes.

[0014] As a preferred technical solution of this utility model, a positioning rod for connecting the base to the top of the concrete pier is installed at the bottom of the base plate, and the positioning rod is inserted into a limiting groove opened between the top of the concrete pier and the groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The detachable design of the base and concrete pier, combined with the sliding L-shaped locking plate, sliding sleeve, and control and connecting components, replaces the traditional bolt fixing method. During installation, there is no need for precise drilling or pre-embedding. The adjustment control component can drive the L-shaped locking plate to lock and fasten with the concrete pier through the connector, which simplifies the installation process, improves installation efficiency, and avoids the increase in working time caused by traditional deviations. At the same time, during later maintenance or adjustment, the locking can be released by reverse adjustment, avoiding the problem of difficult disassembly due to bolt corrosion, and without damaging the fasteners. This not only reduces maintenance costs and protects the structural integrity, but also provides convenience for the disassembly and maintenance of photovoltaic brackets. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0019] Figure 3 This is a cross-sectional schematic diagram of the concrete pier of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the base of this utility model;

[0021] Figure 5 This is a schematic diagram showing the disassembled structure of the control component and the connecting component of this utility model.

[0022] In the diagram: 1. Photovoltaic support body; 2. Photovoltaic panel; 3. Base; 4. Concrete pier; 5. Positioning groove; 6. Groove; 7. Limiting groove; 8. Base plate; 9. Positioning rod; 10. Sliding port; 11. Housing; 12. First rotating hole; 13. Screw; 14. First rotating rod; 15. Knob; 16. Sliding sleeve; 17. Connecting block; 18. Screw hole; 19. L-shaped locking plate; 20. Sliding block; 21. Concave plate; 22. Second rotating hole; 23. Connecting rod; 24. Second rotating rod. Detailed Implementation

[0023] 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.

[0024] like Figure 1 - Figure 5 As shown, a photovoltaic bracket fastening device includes a photovoltaic bracket body 1, and a photovoltaic panel 2 is installed on the top of the photovoltaic bracket body 1.

[0025] A base 3 is fixedly connected to the bottom of the photovoltaic support body 1. A concrete pier 4 is provided at the bottom of the base 3. The base 3 and the concrete pier 4 are detachably connected.

[0026] The bottom of the base 3 is fixedly connected to the base plate 8. The bottom of the base plate 8 is slidably connected to two L-shaped locking plates 19. The L-shaped locking plates 19 are engaged with the groove 6 opened on the top of the concrete pier 4. A sliding sleeve 16 is fitted on the outer wall of the base 3. A control component for controlling the up and down movement of the sliding sleeve 16 is installed on the outer wall of the base 3.

[0027] The sliding sleeve 16 has connecting parts on both sides for controlling the horizontal movement of the L-shaped locking plate 19.

[0028] like Figure 4 and Figure 5 As shown, the control component includes a housing 11 mounted on the outer wall of the base 3. A screw 13 is installed inside the housing 11. The housing 11 protects the screw 13, the first rotating rod 14, and other internal components, preventing transmission jamming caused by outdoor rain and dust erosion, and ensuring long-term stability. The upper and lower ends of the screw 13 are fixedly connected to the first rotating rod 14. The first rotating rod 14 is rotatably connected to the first rotating holes 12 opened at the top and bottom of the housing 11. A knob 15 for manually rotating the first rotating rod 14 is also installed on the top of the upper first rotating rod 14. A connecting block 17 is fixedly connected to the front end of the sliding sleeve 16. The top of 7 has a screw hole 18 for threaded connection with screw 13. Knob 15 is a manual operation end. Rotating knob 15 can directly drive the first rotating rod 14 to rotate synchronously with screw 13. The connecting block 17 fixed at the front end of the sliding sleeve 16 is threadedly connected to screw 13 through the screw hole 18 on the top. When screw 13 rotates, the threaded transmission will convert the rotational motion into the linear motion of the connecting block 17, thereby driving the sliding sleeve 16 to move up and down along the outer wall of base 3. At the same time, the threaded transmission has self-locking property. After the sliding sleeve 16 moves to the target position, it can automatically stay fixed without additional locking components, providing stable support for the linkage of subsequent connecting parts.

[0029] like Figure 3 and Figure 5 As shown, a slider 20 is installed on the top of the L-shaped locking plate 19. The slider 20 is slidably connected to the sliding opening 10 on the top of the base plate 8. Grooves 6 for accommodating the L-shaped locking plate 19 are provided on both sides of the concrete pier 4. A limiting groove 7 for the lateral part of the L-shaped locking plate 19 to be inserted and fitted is provided on the inner wall of the groove 6, so as to achieve the snap-fit ​​fastening with the concrete pier 4. When the L-shaped locking plate 19 moves towards the concrete pier 4, its lateral part can enter the groove 6 and be inserted and fitted with the limiting groove 7 on the inner wall of the groove 6. Through the guidance of the slider 20 and the sliding opening 10, and the insertion and fit of the limiting groove 7 and the L-shaped locking plate 19, the snap-fit ​​fastening between the base 3 and the concrete pier 4 is achieved.

[0030] like Figure 5 As shown, the connector includes a concave plate 21 and a connecting rod 23. The concave plates 21 are fixedly connected to both sides of the sliding sleeve 16 and the top of the slider 20, respectively. The concave plates 21 have second rotating holes 22 on both sides. A set of second rotating rods 24 are fixedly connected to the upper and lower ends of the connecting rod 23. The second rotating rods 24 are rotatably connected to the second rotating holes 22. The second rotating rods 24 fixed at the upper and lower ends of the connecting rod 23 are respectively inserted into the second rotating holes 22 of the concave plate 21 on the sliding sleeve side and the concave plate 21 on the slider side, forming a flexible rotating connecting rod structure. When the sliding sleeve 16 moves up and down, it will drive the connecting rod 23 to rotate around the second rotating rods 24 through the concave plate 21, thereby pushing or pulling the slider 20 to move along the sliding opening 10, thereby driving the L-shaped locking plate 19 to move horizontally. There is no need to adjust the two L-shaped locking plates 19 separately, which improves the operating efficiency.

[0031] like Figure 3 and Figure 4 As shown, a positioning rod 9 for connecting the base 3 and the top of the concrete pier 4 is installed at the bottom of the base plate 8. The positioning rod 9 is inserted into the limiting groove 7 opened between the top of the concrete pier 4 and the groove 6. By inserting the positioning rod 9 into the limiting groove 7, the relative position of the base 3 and the concrete pier 4 can be quickly determined through the insertion and cooperation of the positioning rod 9 and the limiting groove 7, providing a reference for the subsequent docking of the L-shaped locking plate 19 and avoiding the base 3 from shifting during the installation process.

[0032] The specific operating principle of this photovoltaic bracket fastening device is as follows:

[0033] First, align the base 3 at the bottom of the photovoltaic support body 1 with the concrete pier 4 below, so that the positioning rod 9 on the bottom plate 8 of the base 3 is precisely inserted into the limiting groove 7 located between the grooves 6 on the top of the concrete pier 4. Through the insertion and engagement of the positioning rod 9 and the limiting groove 7, the relative position of the base 3 and the concrete pier 4 is quickly determined, avoiding lateral displacement during installation. At this time, the two L-shaped locking plates 19 that are slidably connected at the bottom of the base plate 8 are initially in the open state, and the L-shaped locking plates 19 are fully inserted into the grooves 6 opened on both sides of the concrete pier 4.

[0034] Next, the operator rotates the knob 15 mounted on the outer wall of the base 3 housing 11. The knob 15 drives the first rotating rod 14 fixed thereto to rotate. Since the first rotating rod 14 is rotatably connected to the first rotating holes 12 opened at the top and bottom of the housing 11, and both ends of the first rotating rod 14 are fixed to the screw 13 inside the housing 11, the screw 13 rotates synchronously with the first rotating rod 14. Since the front end of the sliding sleeve 16 fitted on the outer wall of the base 3 is fixed with a connecting block 17, and the screw hole 18 at the top of the connecting block 17 is threadedly connected to the screw 13, the rotation of the screw 13 will be converted into the up and down movement of the connecting block 17, thereby driving the sliding sleeve 16 to slide vertically downward along the outer wall of the base 3. When the sliding sleeve 16 moves downward, the concave plates 21 fixed on both sides of it move downward synchronously. Since the concave plates 21 are provided with second rotating holes 22 on both sides, and the second rotating rods 24 at the upper and lower ends of the connecting rod 23 are respectively connected to the concave plates 21 on the sides of the sliding sleeve 16, The L-shaped locking plate 19 is rotatably connected to the second rotating hole 22 of the concave plate 21 on the top slider 20. The downward movement of the sliding sleeve 16 will drive the slider 20 to slide horizontally along the sliding opening 10 on the top of the base plate 8 through the connecting rod 23. The slider 20 will then drive the L-shaped locking plate 19 fixed thereto to move inward in the groove 6 until the lateral part of the L-shaped locking plate 19 is completely inserted into the limiting groove 7 opened in the inner wall of the groove 6, until the knob 15 can no longer be turned. Thus, by fixing the position of the sliding sleeve 16, the L-shaped locking plate 19 and the limiting groove 7 are locked together, and the connecting rod 23 supports the connection, thus achieving a tight connection between the photovoltaic bracket body 1 and the concrete pier 4. If disassembly is required, the knob 15 can be rotated in the opposite direction to drive the sliding sleeve 16 to move upward. The connecting rod 23 will push the L-shaped locking plate 19 to move outward, so that the lateral part is disengaged from the limiting groove 7. The positioning rod 9 can be pulled out to separate the base 3 from the concrete pier 4.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic bracket fastening device, comprising a photovoltaic bracket body (1), wherein a photovoltaic panel (2) is mounted on the top of the photovoltaic bracket body (1); Its features are: The bottom of the photovoltaic support body (1) is fixedly connected to a base (3), and a concrete pier (4) is provided at the bottom of the base (3). The base (3) and the concrete pier (4) are detachably connected. The bottom of the base (3) is fixedly connected to a base plate (8), and the bottom of the base plate (8) is slidably connected to two L-shaped locking plates (19). The L-shaped locking plates (19) are engaged with the groove (6) opened on the top of the concrete pier (4). A sliding sleeve (16) is fitted on the outer wall of the base (3), and a control component for controlling the up and down movement of the sliding sleeve (16) is installed on the outer wall of the base (3). The sliding sleeve (16) has connecting parts on both sides for controlling the horizontal movement of the L-shaped locking plate (19).

2. The photovoltaic bracket fastening device according to claim 1, characterized in that: The control component includes a housing (11) mounted on the outer wall of the base (3). A screw (13) is installed inside the housing (11). A first rotating rod (14) is fixedly connected to the upper and lower ends of the screw (13). The first rotating rod (14) is rotatably connected to the first rotating holes (12) opened at the top and bottom of the housing (11). A knob (15) for manually driving the first rotating rod (14) to rotate is also installed on the top of the upper first rotating rod (14). A connecting block (17) is fixedly connected to the front end of the sliding sleeve (16). A screw hole (18) for threaded connection with the screw (13) is opened on the top of the connecting block (17).

3. The photovoltaic bracket fastening device according to claim 1, characterized in that: The top of the L-shaped locking plate (19) is equipped with a slider (20), which is slidably connected to the sliding opening (10) on the top of the base plate (8). The concrete pier (4) has grooves (6) on both sides for accommodating the L-shaped locking plate (19). The inner side wall of the groove (6) has a limiting groove (7) for the horizontal part of the L-shaped locking plate (19) to be inserted and fitted, so as to achieve the snap-fit ​​fastening with the concrete pier (4).

4. The photovoltaic bracket fastening device according to claim 1, characterized in that: The connector includes a concave plate (21) and a connecting rod (23). The concave plate (21) is fixedly connected to both sides of the sliding sleeve (16) and the top of the slider (20). The concave plate (21) has a second rotating hole (22) on both sides. A set of second rotating rods (24) is fixedly connected to the upper and lower ends of the connecting rod (23). The second rotating rods (24) are rotatably connected to the second rotating holes (22).

5. A photovoltaic bracket fastening device according to claim 1, characterized in that: The bottom of the base plate (8) is equipped with a positioning rod (9) for connecting the base (3) and the top of the concrete pier (4). The positioning rod (9) is inserted into a limiting groove (7) opened between the top of the concrete pier (4) and the groove (6).

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