Photovoltaic support connecting guide rail device

Abstract

The utility model relates to the technical field of photovoltaic supports, in particular to a photovoltaic support connecting guide rail device which structurally comprises a guide rail body, a rail fixing block connected to the lower portion of the guide rail body and an L-shaped support connected with a color steel tile, and a rail groove with an upward opening is formed in the top of the guide rail body. The guide rail is convenient to assemble, the left side and the right side of the guide rail body are clamped and connected at the same time through the first limiting protruding block, the second limiting protruding block and the L-shaped support, the two sides of the guide rail body are stressed at the same time when the guide rail is used, and the guide rail is convenient to assemble. The bearing capacity and stability of the guide rail connecting system are remarkably improved, in addition, the needed depth of the groove openings of the first groove and the second groove is small, the material consumption is reduced, the two grooves are both formed in the periphery of the guide rail body, the section modulus of the guide rail is effectively increased, and therefore the service life of the guide rail is prolonged under the same load condition. And the composite material has better mechanical properties and lower manufacturing cost.

Description

Technical Field

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

[0002] Currently, an increasing number of countries worldwide regard renewable energy as an important way to achieve energy transition and sustainable development. Among them, solar and wind energy, as widely distributed, clean, and low-carbon representative energy sources, continue to receive high attention for their technological research and development and industrial applications. Photovoltaic modules (commonly known as solar panels) are the core component of photovoltaic power generation systems. Typically, photovoltaic modules are mounted on photovoltaic module supports, and multiple photovoltaic module supports are arranged in a predetermined array and connected at points to form a photovoltaic support system. The installation process of photovoltaic modules involves first fixing the supports to the roof, then installing tracks on the supports, and finally connecting the structures into a unified whole using screws, nuts, and other fixing components.

[0003] For example, patent document CN208924164U discloses a guide rail for a solar panel bracket, including an L-shaped support plate. A fixed plate is arranged parallel to the longer end of the support plate. The fixed plate and the support plate are fixedly connected by a baffle. The support plate, the baffle, and the fixed plate form a sliding groove for the pressure block to slide. The shorter side of the support plate is fixedly connected to the fixed plate by a baffle. The fixed plate, the baffle, and the support plate form a sliding groove. A bolt detachably connected to a hook is slidably disposed in the sliding groove.

[0004] For example, patent document CN104980094A discloses a solar panel bracket guide rail and its cooperating locking block, middle pressure block, and side pressure block. The guide rail includes a main body; the top of the main body is provided with a first grooved track, one side wall of the main body is provided with a nut track, and the other side wall of the main body is provided with a second grooved track; the opening direction of the first grooved track is upward; the opening direction of the second grooved track is perpendicular to the opening direction of the first grooved track and faces away from the main body; the opening direction of the nut track is perpendicular to the opening direction of the first grooved track and faces away from the main body; the opening direction of the second grooved track is opposite to the opening direction of the nut track.

[0005] In practical applications, it still has the following shortcomings: In the existing installation method, the engagement of the T-shaped block and the track requires certain skills and a high level of technical proficiency from the construction personnel, making the installation difficult; at the same time, the track structure is eccentric when under actual stress, with the stress mainly concentrated on the side where the T-shaped block is located, resulting in an uneven stress distribution and affecting the stability and durability of the overall structure; in addition, the slot structure designed to accommodate the T-shaped block not only uses a large amount of material but also has a low material utilization rate under the same load conditions, resulting in poor economic efficiency and high cost. Utility Model Content

[0006] This invention provides a photovoltaic bracket connecting rail device, which can effectively solve the above problems.

[0007] This utility model is implemented as follows:

[0008] A photovoltaic bracket connecting rail device includes: a rail body, a rail fixing block connected to the bottom of the rail body, and an L-shaped bracket connected to a color steel tile. The top of the rail body has an upward-opening rail groove, and the bottom of one side of the rail body has a first groove extending along the length of the rail body. The bottom of the rail body away from the first groove has a second groove parallel to the first groove. The bottom outer side of the first groove has an upward-extending first locking strip, and the bottom of the second groove away from the first groove has a second locking strip extending toward the first groove. The top of the rail fixing block is attached to the bottom surface of the rail body, and one end of the top has a first limiting protrusion that bends upward and slides with the first groove and the first locking strip. The other end of the top has a second limiting protrusion that bends upward and slides with the second groove and the second locking strip. The side of the rail fixing block near the second groove has a threaded hole. The vertical plate of the L-shaped bracket is attached to the side of the rail body near the second groove and is connected to the threaded hole of the rail fixing block by a locking bolt.

[0009] As a further improvement, the bottom of the track fixing block, on the same side as the second limiting protrusion, is provided with a support block extending toward the vertical plate of the L-shaped bracket.

[0010] As a further improvement, the vertical plate of the L-shaped bracket is provided with a waist-shaped hole for the locking bolt to pass through.

[0011] As a further improvement, a clamping washer is sleeved on the outside of the screw of the locking bolt, on the side of the L-shaped bracket away from the track fixing block. The diameter of the clamping washer is larger than the width of the waist-shaped hole. A spring washer is sleeved on the outside of the screw of the locking bolt between the clamping washer and the head of the locking bolt.

[0012] As a further improvement, the horizontal plate of the L-shaped bracket is provided with mounting holes.

[0013] As a further improvement, the guide rail body has several protruding teeth evenly distributed from top to bottom on the side near the second groove, and the vertical plate of the L-shaped bracket has continuous meshing teeth on both the front and rear sides that correspond to the protruding teeth.

[0014] As a further improvement, both the convex teeth and the meshing teeth have a continuous corrugated structure.

[0015] As a further improvement, the track fixing block has a triangular structure.

[0016] The beneficial effects of the utility model are:

[0017] This utility model is easy to assemble, and through the first limiting protrusion, the second limiting protrusion, and the L-shaped bracket, it can be simultaneously clamped and connected to the left and right sides of the guide rail body. During use, the guide rail body is subjected to force on both sides at the same time, which significantly improves the load-bearing capacity and stability of the guide rail connection system. In addition, the required depth of the first groove and the second groove is relatively shallow, which saves material usage. Moreover, both grooves are located on the periphery of the guide rail body, which effectively increases the cross-sectional modulus of the guide rail. Thus, under the same load conditions, it has better mechanical properties and lower manufacturing costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a photovoltaic bracket connecting guide rail device provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the guide rail body provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the guide rail body provided by this utility model;

[0022] Figure 4 This is a structural schematic diagram of the track fixing block, L-shaped bracket, and locking bolt provided by this utility model;

[0023] Figure 5 This is a structural schematic diagram of the track fixing block, L-shaped bracket, and locking bolt provided by this utility model;

[0024] Figure 6 This is a structural diagram illustrating the installation process of the track fixing block provided by this utility model.

[0025] In the diagram: 1. Guide rail body; 2. Rail fixing block; 3. L-shaped bracket; 11. Rail groove; 12. First groove; 13. Second groove; 14. First locking strip; 15. Second locking strip; 21. First limiting protrusion; 22. Second limiting protrusion; 23. Threaded hole; 4. Locking bolt; 24. Support block; 31. Waist-shaped hole; 5. Pressure washer; 6. Spring washer; 32. Mounting hole; 16. Raised tooth; 33. Engaging tooth. Detailed Implementation

[0026] All embodiments of this utility model are intended to fall within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating that the purpose, technical solution, and advantages of the method are clearer. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort indicate or imply the relative importance of the indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In existing installation methods, the engagement of the T-shaped clips with the track requires certain skills and a high level of technical proficiency from the construction workers, making installation difficult. Furthermore, the track structure exhibits an eccentric state under actual stress, with stress concentrated primarily on the side where the T-shaped clips are located, resulting in uneven stress distribution and affecting the overall structural stability and durability. In addition, the slot structure designed to accommodate the T-shaped clips not only consumes a large amount of material but also has low material utilization under the same load conditions, leading to poor economic efficiency and high costs. To address these technical problems, this paper proposes the following technical solution:

[0029] Reference Figures 1-6As shown, a photovoltaic bracket connecting rail device includes: a rail body 1, a rail fixing block 2 connected to the bottom of the rail body 1, and an L-shaped bracket 3 connected to a color steel tile. The top of the rail body 1 is provided with an upward-facing rail groove 11. The bottom of one side of the rail body 1 is provided with a first groove 12 extending along the length of the rail body 1. The bottom of the rail body 1 away from the first groove 12 is provided with a second groove 13 parallel to the first groove 12. The outer side of the bottom of the first groove 12 is provided with an upward-extending first locking strip 14. The bottom of the second groove 13 away from the first groove 12 is provided with a... A second locking strip 15 extends toward one end of the first groove 12; the top of the track fixing block 2 is attached to the bottom surface of the guide rail body 1, and one end of the top is provided with a first limiting protrusion 21 that bends upward and slides with the first groove 12 and the first locking strip 14, and the other end of the top is provided with a second limiting protrusion 22 that bends upward and slides with the second groove 13 and the second locking strip 15; the track fixing block 2 is provided with a threaded hole 23 on the side near the second groove 13; the vertical plate of the L-shaped bracket 3 is attached to the side of the guide rail body 1 near the second groove 13, and is connected to the threaded hole 23 of the track fixing block 2 by a locking bolt 4;

[0030] In use, first, fix the horizontal plate of the L-shaped bracket 3 to the corrugated steel roof. Then, pass the locking bolt 4 through the vertical plate of the L-shaped bracket 3 and connect it to the threaded hole 23 of the track fixing block 2. Next, align the top of the track fixing block 2 with the bottom surface of the guide rail body 1, while simultaneously aligning the vertical plate of the L-shaped bracket 3 with the side wall of the guide rail body 1 near the second groove 13. At this point, tighten the locking bolt 4. As the locking bolt 4 begins to tighten, the track fixing block 2 moves to the right along the bottom surface of the guide rail body 1, causing the first limiting protrusion 21 to engage with the first groove 12 and the first locking strip 14. At the same time, the second limiting protrusion 22 also engages with the second groove 13 and the second locking strip 15. At this point, stop tightening the locking bolt 4. The track groove 11 at the top of the guide rail body 1 is used to connect with the photovoltaic panel assembly. The components are finally fixed. Therefore, during installation, this application only requires pre-tightening the connection between the track fixing block 2 and the L-shaped bracket 3, making the track fixing block 2 fit against the bottom of the guide rail body 1, and then tightening the locking bolt 4 to complete the assembly. The operation is simple. Furthermore, the first limiting protrusion 21, the second limiting protrusion 22, and the L-shaped bracket 3 simultaneously clamp and connect with the left and right sides of the guide rail body 1. During use, both sides of the guide rail body 1 are subjected to force simultaneously, which significantly improves the load-bearing capacity and stability of the guide rail connection system. In addition, the grooves of the first groove 12 and the second groove 13 are shallow, saving material usage. Moreover, both grooves are located on the periphery of the guide rail body, effectively increasing the cross-sectional modulus of the guide rail. Thus, under the same load conditions, it has better mechanical properties and lower manufacturing costs.

[0031] The bottom of the track fixing block 2, on the same side as the second limiting protrusion 22, is provided with a support block 24 extending toward the vertical plate of the L-shaped bracket 3. The support block 24 is vertically connected to the vertical plate of the L-shaped bracket 3. Therefore, when in use, the bottom right side of the track fixing block 2 abuts against the vertical plate of the L-shaped bracket 3 through the support block 24, thereby forming an additional support point at the bottom right side of the track fixing block 2. This effectively improves the stability of the connection between the track fixing block 2 and the L-shaped bracket 3, and enhances the stability and deformation resistance of the overall structure.

[0032] The vertical plate of the L-shaped bracket 3 is provided with a waist-shaped hole 31 for the locking bolt 4 to pass through. During installation, the locking bolt 4 passes through the waist-shaped hole 31 and connects with the threaded hole 23 of the track fixing block 2. At the same time, the L-shaped bracket 3 can be moved up and down according to actual usage needs, so as to flexibly adapt to the height difference of different installation planes, effectively compensate for installation errors, and improve the applicability and installation efficiency of the entire bracket system.

[0033] The locking bolt 4 has a clamping washer 5 sleeved on the outside of the screw, located on the side of the L-shaped bracket 3 away from the track fixing block 2. The diameter of the clamping washer 5 is larger than the width of the waist-shaped hole 31, which can completely cover and clamp the area around the waist-shaped hole 31. There is a spring washer 6 sleeved on the outside of the screw of the locking bolt 4 between the clamping washer 5 and the head of the locking bolt 4. The clamping washer 5 expands the force-bearing contact surface, and with the help of the continuous elastic pre-tightening force provided by the spring washer 6, the locking bolt 4 is effectively prevented from loosening under vibration or load change conditions, which significantly enhances the reliability and long-term stability of the connection.

[0034] The L-shaped bracket 3 has mounting holes 32 on its horizontal plate. During installation, self-tapping screws or rivets can be passed through the mounting holes 32 to firmly fix the L-shaped bracket 3 to the color steel tile roof.

[0035] The guide rail body 1 has several protruding teeth 16 evenly distributed from top to bottom on the side near the second groove 13. The vertical plate of the L-shaped bracket 3 has continuous meshing teeth 33 on both the front and rear sides that correspond to the protruding teeth 16. When the vertical plate of the L-shaped bracket 3 is attached to the side wall of the guide rail body 1 and fixed by the locking bolt 4, the protruding teeth 16 and the meshing teeth 33 mesh with each other to form a reliable anti-slip structure. This effectively prevents relative vertical displacement between the guide rail body 1 and the L-shaped bracket 3 during long-term use, significantly enhances the shear resistance and overall stability of the connection between the two, and ensures the safety and durability of the photovoltaic bracket system under external forces such as wind load and snow load.

[0036] Both the protruding tooth 16 and the meshing tooth 33 have a continuous corrugated structure, which allows for a larger contact and engagement area between the tooth surfaces.

[0037] The track fixing block 2 has a triangular structure, which enhances the structural rigidity of the track fixing block 2 when bearing the load from the guide rail body 1 and the photovoltaic module, and improves the bending and torsional resistance, thereby improving the stability and reliability of the entire support system while ensuring the connection strength.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic bracket connecting rail device, the structure of which includes: The guide rail body (1), the track fixing block (2) connected to the bottom of the guide rail body (1), and the L-shaped bracket (3) connected to the color steel tile are characterized in that: the top of the guide rail body (1) is provided with an upward-facing track groove (11), the bottom of one side of the guide rail body (1) is provided with a first groove (12) extending along the length direction of the guide rail body (1), the bottom of the guide rail body (1) away from the first groove (12) is provided with a second groove (13) parallel to the first groove (12), the bottom outer side of the first groove (12) is provided with an upward-extending first locking strip (14), and the bottom of the second groove (13) away from the first groove (12) is provided with a first locking strip (14) extending towards the first groove (12). The second locking strip (15) extends from one end; the top of the track fixing block (2) is attached to the bottom surface of the guide rail body (1), and one end of the top is provided with a first limiting protrusion (21) that bends upward and slides with the first groove (12) and the first locking strip (14), and the other end of the top is provided with a second limiting protrusion (22) that bends upward and slides with the second groove (13) and the second locking strip (15). The track fixing block (2) is provided with a threaded hole (23) on the side near the second groove (13). The vertical plate of the L-shaped bracket (3) is attached to the side of the guide rail body (1) near the second groove (13), and is connected to the threaded hole (23) of the track fixing block (2) by a locking bolt (4).

2. The photovoltaic bracket connecting rail device as described in claim 1, characterized in that: The bottom of the track fixing block (2) on the same side as the second limiting protrusion (22) is provided with a support block (24) extending toward the vertical plate of the L-shaped bracket (3).

3. The photovoltaic bracket connecting rail device as described in claim 2, characterized in that: The vertical plate of the L-shaped bracket (3) is provided with a waist-shaped hole (31) through which the locking bolt (4) passes.

4. The photovoltaic bracket connecting rail device as described in claim 3, characterized in that: The locking bolt (4) has a clamping washer (5) on the outside of the screw, which is located on the side of the L-shaped bracket (3) away from the track fixing block (2). The diameter of the clamping washer (5) is greater than the width of the waist-shaped hole (31). There is a spring washer (6) between the clamping washer (5) and the head of the locking bolt (4) and the screw of the locking bolt (4).

5. A photovoltaic bracket connecting rail device as described in any one of claims 1-4, characterized in that: The L-shaped bracket (3) has mounting holes (32) on its horizontal plate.

6. A photovoltaic bracket connecting rail device as described in claim 5, characterized in that: The guide rail body (1) has several protruding teeth (16) evenly distributed from top to bottom on the side near the second groove (13), and the vertical plate of the L-shaped bracket (3) is provided with continuous meshing teeth (33) corresponding to the protruding teeth (16) on both the front and rear sides.

7. A photovoltaic bracket connecting rail device as described in claim 6, characterized in that: Both the protruding teeth (16) and the meshing teeth (33) are continuous corrugated structures.

8. A photovoltaic bracket connecting rail device as described in claim 5, characterized in that: The track fixing block (2) has a triangular structure.

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