An assembled beam fixing structure and a photovoltaic support

Abstract

This utility model discloses a prefabricated beam fixing structure and a photovoltaic bracket, belonging to the field of photovoltaic technology. The prefabricated fixing structure improves the tolerance of on-site construction. The prefabricated beam fixing structure includes an inclined beam and a crossbeam perpendicularly fixed to the inclined beam. The structure also includes a guide rail installed on the inclined beam and a tray clamp fixed to the crossbeam. The guide rail extends along the length of the inclined beam, and the tray clamp slides with the guide rail. A fastening structure is provided between the tray clamp and the guide rail to secure them.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic power generation equipment technology, specifically relating to photovoltaic brackets. Background Technology

[0002] As a key structure supporting photovoltaic modules, the strength and stability of photovoltaic brackets directly affect the safety and lifespan of the entire photovoltaic system. Traditional photovoltaic bracket steel structures typically use welding to fix the inclined beams and horizontal beams together, then attach the photovoltaic panels to the horizontal beams. If there are errors in the on-site construction of the welding joints, the entire joint must be scrapped, with no chance of reuse. Utility Model Content

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a prefabricated beam fixing structure and photovoltaic bracket. The prefabricated fixing structure improves the tolerance for errors during on-site construction and facilitates secondary utilization.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] First, an assembled crossbeam fixing structure is provided, including an inclined beam and a crossbeam vertically and intersectingly fixed on the inclined beam. The assembled crossbeam fixing structure also includes a guide rail installed on the inclined beam and a pallet clamp fixed to the crossbeam. The guide rail extends along the length direction of the inclined beam, the pallet clamp slides with the guide rail, and a fastening structure is provided between the pallet clamp and the guide rail to fix the pallet clamp to the guide rail.

[0006] Preferably, the guide rail is provided with convex teeth that extend laterally and are spaced apart along the length direction, and a tooth groove is provided between two adjacent convex teeth. The fastening structure includes fasteners connected to the pallet clamp, and the fasteners are engaged in the tooth grooves.

[0007] Preferably, the pallet clamp includes a first pallet clamp and a second pallet clamp. The first pallet clamp is connected to the crossbeam and includes a base plate that is slidably supported on the guide rail. The second pallet clamp is located on the lateral side of the base plate and is fixed to the first pallet clamp and the guide rail by fasteners.

[0008] Preferably, a second concave-convex fitting structure is provided between the second pallet clamp and the second transverse side of the base plate and the tooth, and a downwardly protruding ridge is provided on the first transverse side of the base plate, and a first concave-convex fitting structure is provided between the ridge and the first transverse side of the tooth.

[0009] Preferably, the second concave-convex fitting structure includes a lower groove provided on the lower part of the second transverse side of the protruding tooth and an upper groove provided on the second transverse side of the base plate, and the second support plate clamp is provided with a lower convex part and an upper convex part that fit into the lower groove and the upper groove respectively.

[0010] Preferably, the lower groove has a vertically arranged inner sidewall and an obliquely extending inner top wall, and the lower protrusion has a right-angled trapezoidal structure, with the upper bottom cooperating with the inner sidewall and the oblique waist cooperating with the inner top wall; and / or, the upper groove has an obliquely arranged lower sidewall and a horizontally extending straight top wall, and the upper protrusion has a right-angled triangular structure, with the straight side cooperating with the straight top wall and the oblique side cooperating with the lower sidewall.

[0011] Preferably, the upper part of the two lateral sides of the protruding tooth is provided with a lower inclined surface, the bottom of the base plate is provided with a sliding groove, the two lateral side walls of the sliding groove are provided with an upper inclined surface, and the upper inclined surface cooperates with the lower inclined surface.

[0012] Preferably, the fastener is a fastening bolt, which passes through the toothed groove and connects the second support plate clamp and the protrusion.

[0013] Preferably, the first pallet clamp further includes a vertical plate disposed above the base plate, the vertical plate being fixed to the crossbeam by bolts.

[0014] Secondly, a photovoltaic support structure is also provided, including the aforementioned prefabricated crossbeam fixing structure.

[0015] The present invention adopts the above technical solution and has the following beneficial effects:

[0016] 1. The prefabricated crossbeam fixing structure includes a guide rail installed on the inclined beam and a pallet clamp fixed to the crossbeam. The guide rail extends along the length of the inclined beam, and the pallet clamp slides with the guide rail. A fastening structure is provided between the pallet clamp and the guide rail to fix the pallet clamp to the guide rail. Because the pallet clamp slides with the guide rail, the pallet clamp can be fixed to the crossbeam with bolts during on-site assembly of the crossbeam and inclined beam. Furthermore, the crossbeam can move along the guide rail. If the temporary fixing does not match the design positioning, the pallet clamp can be disassembled, moved to the correct position, and then fixed again, providing a higher tolerance for errors during on-site construction and facilitating secondary reuse.

[0017] Furthermore, the pallet clamp and guide rail are effectively connected through a fastening structure, achieving the effect of connecting the crossbeams and diagonal beams and limiting relative displacement. The pallet clamp and guide rail can be pre-fabricated in the factory, ensuring the quality of the connection and avoiding the problem of reduced weld strength due to operator errors during welding.

[0018] 2. The guide rail includes a fixed plate and protruding teeth that extend laterally and are spaced apart along the length of the upper surface of the fixed plate. A toothed groove is provided between adjacent protruding teeth. The fastening structure includes fasteners that connect to the pallet clamp, and the fasteners engage with the toothed grooves. Because the fasteners engage with the toothed grooves while connecting to the pallet clamp, not only is the pallet clamp connected to the guide rail, but it also ensures that the pallet clamp is reliably fixed after moving to the correct position, preventing it from sliding along the guide rail and causing misalignment.

[0019] 3. The pallet clamp includes a first pallet clamp and a second pallet clamp. The first pallet clamp is connected to the crossbeam and includes a base plate that is slidably supported on the guide rail. The second pallet clamp is located on one side of the base plate laterally. The pallet clamp has a split structure. The first pallet clamp, the second pallet clamp, and the guide rail are effectively connected by fasteners, such as bolts, so that the first pallet clamp, the second pallet clamp, and the guide rail form a whole, achieving the effect of connecting the crossbeam and the inclined beam, limiting relative displacement, and the bolt tightening method facilitates the installation and disassembly of the nodes, improving the secondary utilization rate of the pallet clamp.

[0020] 4. To secure the pallet clamp to the guide rail as a single unit, a second concave-convex fitting structure is provided between the second pallet clamp and the second transverse side of the base plate and the protruding teeth. The first transverse side of the base plate has a downwardly protruding ridge, and a first concave-convex fitting structure is provided between the ridge and the first transverse side of the protruding teeth. The second concave-convex fitting structure primarily prevents vertical misalignment and separation between the first pallet clamp, the second pallet clamp, and the guide rail, while the first concave-convex fitting structure primarily prevents vertical misalignment and separation between the first pallet clamp and the guide rail.

[0021] 5. Since the fastener uses a fastening bolt, which passes through the toothed groove and connects the second support plate clamp and the convex strip, it is convenient to disassemble the support plate clamp and move it to the correct position for fixing after installation error, providing a fault tolerance rate for on-site construction. In addition, two fastening bolts can be set to improve the firmness of the fastening.

[0022] 6. The first pallet clamp includes a vertical plate disposed above the base plate. The vertical plate is fixed to the crossbeam with crossbeam fixing bolts. In this way, the first pallet clamp and the crossbeam are fixed as one piece. Since the pallet clamp is slidably engaged with the guide rail, the crossbeam can move along the guide rail. After moving to the correct position, it is fixed with fastening bolts.

[0023] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0024] The utility model will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of a prefabricated crossbeam fixing structure in an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of a prefabricated crossbeam fixing structure in an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of a prefabricated crossbeam fixing structure in an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of a prefabricated crossbeam fixing structure in an embodiment of the present utility model;

[0029] Figure 5 for Figure 4 Schematic diagram of a local structure in the middle;

[0030] Figure 6 This is a schematic diagram of the guide rail structure in an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the guide rail structure in an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the first pallet clamp in an embodiment of the present utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the first pallet clamp in an embodiment of the present utility model;

[0034] Figure 10 This is a schematic diagram of the structure of the second pallet clamp in an embodiment of this utility model;

[0035] Figure 11 This is a schematic diagram of the structure of the second pallet clamp in an embodiment of this utility model;

[0036] Reference numerals: Inclined beam 1, Crossbeam 2, Guide rail 3, Protruding tooth 31, Lower groove 32, Inner side wall 321, Inner top wall 322, Lower inclined surface 33, Fixing plate 34, Tooth groove 35, Guide rail fixing bolt 36, Support plate clamp 4, First support plate clamp 41, Base plate 411, Vertical plate 412, Rib plate 413, Protruding strip 414, Inclined protrusion 415, Upper groove 416, Straight top wall 4161, Lower side wall 4162, First recess 417, Sliding groove 418, Second support plate clamp 42, Lower protrusion 421, Upper protrusion 422, Second recess 423, Fastening bolt 43, Crossbeam fixing bolt 44. Detailed Implementation

[0037] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0038] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0039] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "lateral," and "longitudinal," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0042] To avoid the problem of low on-site construction tolerance caused by welding between the inclined beams and cross beams in existing photovoltaic support systems. For example... Figures 1 to 11 As shown, this embodiment provides an assembled crossbeam fixing structure for the assembled connection of crossbeams and inclined beams in a photovoltaic bracket. It includes an inclined beam 1 and a crossbeam 2 that is vertically and intersectingly fixed on the inclined beam. The assembled crossbeam fixing structure also includes a guide rail 3 installed on the inclined beam 1 and a tray clamp 4 fixed to the crossbeam 2. The guide rail 3 extends along the length direction of the inclined beam 1. The tray clamp 4 is slidably engaged with the guide rail 3, and a fastening structure is provided between the tray clamp 4 and the guide rail 3 to fix the tray clamp 4 to the guide rail 3.

[0043] The technical solution adopted in this embodiment allows the pallet clamp to slide with the guide rail. Therefore, when the crossbeam and the inclined beam are assembled on site, the pallet clamp can be fixed to the crossbeam with bolts. Moreover, the crossbeam can move longitudinally along the guide rail. If the temporary fixation does not match the design positioning, the pallet clamp can be disassembled, moved to the correct position, and then fixed again, providing a higher tolerance for errors in on-site construction.

[0044] Furthermore, the pallet clamp and guide rail are effectively connected through a fastening structure, achieving the effect of connecting the crossbeams and diagonal beams and limiting relative displacement. The pallet clamp and guide rail can be pre-fabricated in the factory, ensuring the quality of the connection and avoiding the problem of reduced weld strength due to welding errors by workers during welding connections.

[0045] Specifically, the guide rail 3 includes a fixed plate 34 and protruding teeth 31 extending laterally and spaced apart along the length direction on the upper surface of the fixed plate. A groove 35 is provided between adjacent protruding teeth 31. The fastening structure includes fasteners connected to the pallet clamp 4, and the fasteners are engaged in the grooves 35. Because the fasteners are engaged in the grooves while connected to the pallet clamp, not only is the pallet clamp connected to the guide rail, but it also ensures that the pallet clamp is reliably fixed after moving to the correct position, preventing it from sliding along the guide rail and causing misalignment. The fixed plate 34 can be fixed to the inclined beam 1 using guide rail fixing bolts 36.

[0046] In some embodiments, the pallet clamp 4 includes a first pallet clamp 41 and a second pallet clamp 42. The first pallet clamp 41 is connected to the crossbeam 2 and includes a base plate 411 slidably supported on the guide rail. The second pallet clamp 42 is located on one side of the base plate laterally and is fixed to the guide rail 3 together with the first pallet clamp 41 by fasteners. The first pallet clamp, the second pallet clamp, and the guide rail are effectively connected by fasteners, such as bolts, so that the first pallet clamp, the second pallet clamp, and the guide rail form a whole, achieving the effect of connecting the crossbeam and the inclined beam, limiting relative displacement, and the bolt tightening method facilitates the installation and disassembly of the nodes, improving the secondary utilization rate of the pallet clamp.

[0047] To secure the pallet clamp 4 to the guide rail 3 as a single unit, a second concave-convex fitting structure is provided between the second pallet clamp 42 and the second transverse side of the base plate 411 and the protruding tooth 31. The base plate 411 has a downwardly protruding rib 414 on its first transverse side, and a first concave-convex fitting structure is provided between the rib 414 and the first transverse side of the protruding tooth 31. The second concave-convex fitting structure primarily prevents vertical misalignment and separation between the first pallet clamp, the second pallet clamp, and the guide rail, while the first concave-convex fitting structure primarily prevents vertical misalignment and separation between the first pallet clamp and the guide rail.

[0048] Specifically, the second concave-convex fitting structure includes a lower groove 32 located on the lower part of the second transverse side of the protruding tooth and an upper groove 416 located on the second transverse side of the base plate. The second support plate clamp 42 is provided with a lower protrusion 421 and an upper protrusion 422 that fit into the lower groove 32 and the upper groove 416, respectively. A second groove 423 is provided between the lower protrusion 421 and the upper protrusion 422. The first groove has a trapezoidal cross-section, with the upper and lower sides corresponding to two inclined waist positions. The first concave-convex fitting structure includes a lower groove 32 located on the lower part of the first transverse side of the protruding tooth. In addition, the upper parts of the two transverse sides of the protruding tooth are provided with lower inclined surfaces 33. The structures of the first and second transverse sides of the protruding tooth are the same. The first concave-convex fitting structure also includes a first groove 417 located inside the protruding strip. Its cross-section is triangular. A right-angled triangular groove wall is provided below the first groove. The upper and lower sides of the first groove 417 are inclined sides, and the two inclined sides correspond to the lower inclined surface and the inner top wall, wherein the groove wall is embedded in the lower groove.

[0049] like Figure 7 As shown, the lower groove 32 has a vertically arranged inner sidewall 321 and an obliquely extending inner top wall 322. The lower protrusion has a right-angled trapezoidal structure, with its upper base fitting with the inner sidewall and its oblique side fitting with the inner top wall. The upper groove 416 has an obliquely arranged lower sidewall 4162 and a horizontally extending straight top wall 4161. The upper protrusion 422 has a right-angled triangular structure, with its straight side fitting with the straight top wall 4161 and its oblique side fitting with the lower sidewall 4162.

[0050] In addition, a downwardly extending oblique protrusion 415 is provided below the upper groove 416, wherein the oblique protrusion 415 protrudes from the second side of the lateral direction and is embedded in the second groove 423. The upper oblique surface of the oblique protrusion is engaged with the upper oblique surface of the second groove, and the bottom oblique surface is engaged with the lower oblique surface 33.

[0051] Specifically, the bottom of the base plate 411 is provided with a sliding groove 418, and the two transverse side walls of the sliding groove 418 are provided with upper inclined surfaces. The upper inclined surfaces cooperate with the lower inclined surfaces 33, that is, a sliding groove is formed between the protrusion 414 and the inclined protrusion 415, wherein the bottom inclined surface of the inclined protrusion and the lower inclined surface cooperate.

[0052] In this embodiment, the fastener is a fastening bolt 43. The fastening bolt 43 passes through the toothed groove 35 and connects to the second support plate clamp 42 and the protrusion 414. The second support plate clamp 42 and the protrusion 414 are respectively provided with fixing holes for connection to the fastening bolt 43. This facilitates the removal and repositioning of the support plate clamp to the correct position after installation errors, improving the error tolerance rate of on-site construction. Specifically, two fastening bolts can be used to improve the firmness of the fastening.

[0053] Furthermore, the first pallet clamp 41 also includes a vertical plate 412 disposed above the base plate, the vertical plate 412 being fixed to the crossbeam 2 using crossbeam fixing bolts 44. In this way, the first pallet clamp and the crossbeam are fixed as a single unit, and because the pallet clamp slides along the guide rail, the crossbeam can move along the guide rail, and is then fixed in the correct position using fastening bolts. The first pallet clamp 41 also includes a reinforcing plate 413 connecting the base plate and the vertical plate; the base plate, the vertical plate, and the reinforcing plate are welded together as a single structure to ensure the overall structural strength of the first pallet clamp.

[0054] It is understandable that the protrusion on the first horizontal side of the first pallet clamp can be removed, and a second pallet clamp can also be provided on the first horizontal side of the first pallet clamp.

[0055] In this embodiment, both the inclined beam and the crossbeam can be made of square tubing. The bottom surface of the crossbeam is supported on the base plate, and the crossbeam fixing bolts pass longitudinally through the crossbeam and the vertical plate for fixation.

[0056] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A prefabricated crossbeam fixing structure, comprising an inclined beam and crossbeams vertically and intersectingly fixed to the inclined beam, characterized in that, The assembled crossbeam fixing structure also includes a guide rail installed on the inclined beam and a pallet clamp fixed to the crossbeam. The guide rail extends along the length of the inclined beam, the pallet clamp slides with the guide rail, and a fastening structure is provided between the pallet clamp and the guide rail to fix the pallet clamp to the guide rail.

2. The prefabricated beam fixing structure according to claim 1, characterized in that, The guide rail is provided with convex teeth that extend laterally and are spaced apart along the length direction, and a tooth groove is provided between two adjacent convex teeth. The fastening structure includes fasteners that are connected to the pallet clamp, and the fasteners are engaged in the tooth grooves.

3. The prefabricated beam fixing structure according to claim 2, characterized in that, The pallet clamp includes a first pallet clamp and a second pallet clamp. The first pallet clamp is connected to the crossbeam and includes a base plate that is slidably supported on the guide rail. The second pallet clamp is located on the lateral side of the base plate and is fixed to the first pallet clamp and the guide rail by fasteners.

4. The prefabricated beam fixing structure according to claim 3, characterized in that, The second pallet clamp is provided with a second concave-convex fitting structure between the second pallet clamp and the second transverse side of the base plate and the tooth. The first transverse side of the base plate is provided with a downwardly protruding ridge. The first concave-convex fitting structure is provided between the ridge and the first transverse side of the tooth.

5. The prefabricated crossbeam fixing structure according to claim 4, characterized in that, The second concave-convex fitting structure includes a lower groove on the lower part of the second side of the convex tooth and an upper groove on the second side of the base plate. The second support plate clamp is provided with a lower convex part and an upper convex part that fit into the lower groove and the upper groove respectively.

6. The prefabricated beam fixing structure according to claim 5, characterized in that, The lower groove has a vertically arranged inner sidewall and an obliquely extending inner top wall. The lower convex part has a right-angled trapezoidal structure, with the upper base fitting with the inner sidewall and the oblique waist fitting with the inner top wall; and / or, the upper groove has an obliquely arranged lower sidewall and a horizontally extending straight top wall. The upper convex part has a right-angled triangular structure, with the straight side fitting with the straight top wall and the oblique side fitting with the lower sidewall.

7. The prefabricated beam fixing structure according to claim 3, characterized in that, The upper part of the two sides of the protruding tooth is provided with a lower inclined surface, the bottom of the base plate is provided with a sliding groove, and the two sides of the sliding groove are provided with an upper inclined surface, which cooperates with the lower inclined surface.

8. The prefabricated beam fixing structure according to claim 4, characterized in that, The fastener is a fastening bolt, which passes through the toothed groove and connects to the second support plate clamp and the convex strip.

9. The prefabricated beam fixing structure according to claim 3, characterized in that, The first pallet clamp also includes a vertical plate disposed above the base plate, the vertical plate being fixed to the crossbeam by bolts.

10. A photovoltaic support structure, characterized in that, Includes the prefabricated beam fixing structure as described in any one of claims 1 to 9.

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