Purline adjusting structure, purline fixing device and photovoltaic support

Abstract

The utility model discloses a purline adjusting structure, a purline fixing device and a photovoltaic support, and belongs to the technical field of photovoltaics. The purline adjusting structure comprises a clamping hoop, a purline adjusting piece and a purline adjusting piece, wherein a clamping hoop opening for a main shaft to penetrate through is formed in the clamping hoop; the two adjusting pieces are suitable for being installed on a purline, the two adjusting pieces are meshed with the two ends of the hoop in a one-to-one correspondence mode, and the adjusting pieces are suitable for driving the hoop to move in the rotating process so that the hoop opening can be close to or away from the adjusting pieces. According to the purline adjusting structure, the two ends of the clamp are meshed with the two adjusting pieces correspondingly, the clamp can be driven to move when the adjusting pieces rotate, the clamp opening is made to be close to or away from the adjusting pieces, and then the purline and the main shaft can be driven to be close to or away from each other; the connection reliability of the purline and the main shaft can be conveniently adjusted, the whole disassembly and assembly process is simpler, the assembly efficiency is high, and installation is reliable.

Description

Technical Field

[0001] This application belongs to the field of photovoltaic technology, and in particular relates to a purlin adjustment structure, a purlin fixing device, and a photovoltaic support. Background Technology

[0002] Purlins are components of a photovoltaic (PV) support system that secure the PV solar panels above the main beam. Current fastening methods typically involve installing a lower support below the main shaft and connecting the purlins and the lower support with straight bolts for installation and tightening. This method results in the bolts being suspended in the air, leading to insufficient structural strength and stability. Alternatively, U-bolts are used, secured with nuts within the purlin grooves. This method is inconvenient for installation in limited spaces, and adjusting or disassembling the PV modules after installation becomes extremely difficult, indicating room for improvement. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a purlin adjustment structure, in which the rotation of the adjusting component drives the clamp to move, which can move the purlin and the main shaft closer to each other or further away from each other, realizing the connection or disassembly of the purlin and the main shaft. The entire disassembly and assembly process is simpler and more convenient, with high assembly efficiency and reliable installation.

[0004] In a first aspect, this application provides a purlin adjustment structure, comprising: a clamp having a clamp opening for inserting a main shaft; and two adjusting members adapted to be installed on the purlin, wherein the two adjusting members are respectively engaged with the two ends of the clamp in a one-to-one correspondence, and the adjusting members are adapted to drive the clamp to move during rotation so that the clamp opening moves closer to or further away from the adjusting member.

[0005] According to the purlin adjustment structure of this application, by setting the two ends of the clamp to engage with two adjusting parts respectively, the clamp can be driven to move when the adjusting parts rotate, so that the clamp opening moves closer to or away from the adjusting parts, thereby driving the purlin and the main shaft to move closer to or away from each other. Through the engagement of the adjusting parts with the end of the clamp, the connection reliability between the purlin and the main shaft can be easily adjusted, and the entire disassembly and assembly process is simpler, with high assembly efficiency and reliable installation.

[0006] According to one embodiment of this application, both ends of the clamp have mating rack portions, and the outer peripheral wall of the adjusting member has a mating gear portion, which is adapted to drive the mating rack portion to move linearly when rotating.

[0007] Therefore, when the two adjusting parts rotate, they drive the corresponding mating gear parts to rotate. And through the meshing of the two sets of mating gear parts with the mating rack parts, the two mating rack parts can be driven to move linearly, thereby driving the two ends of the clamp to move linearly. The entire motion transmission is reliable. Compared with ordinary bolt tightening, it is more time-saving and labor-saving for the operator, and the assembly efficiency is higher.

[0008] According to one embodiment of this application, the two mating racks are respectively formed on the outer surfaces of the two ends of the clamp facing away from each other, and the two adjusting members are respectively located on the outer sides of the two ends of the clamp away from each other.

[0009] According to one embodiment of this application, the purlin adjustment structure further includes a support member adapted to support the purlin, wherein the two ends of the support member in the longitudinal direction are adapted to support the two ends of the clamps facing each other.

[0010] According to one embodiment of this application, guide grooves are formed at both ends of the support member along its length, and the two ends of the clamp are respectively inserted into the two guide grooves.

[0011] Therefore, by means of the guide grooves at both ends of the support member along its length, the two ends of the clamp can be respectively inserted into the two guide grooves to guide the two ends of the clamp. This makes it more reliable for the two adjusting members to drive the two ends of the clamp to move in a straight line when rotating, thereby ensuring the movement accuracy of the clamp.

[0012] Secondly, this application provides a purlin fixing device, including a main shaft, a purlin, and a purlin adjusting structure according to any of the above embodiments. The purlin is installed on the main shaft, the main shaft passes through the clamping hole, and the adjusting member is rotatably installed on the purlin.

[0013] According to the purlin fixing device of this application, the adjusting member of the purlin adjusting structure drives the clamp to move, so that the clamp opening moves closer to or further away from the adjusting member, thereby driving the purlin and the main shaft to move closer to or further away from each other. Through the engagement of the adjusting member and the end of the clamp, the connection reliability between the purlin and the main shaft can be easily adjusted, and the entire disassembly and assembly process is simpler, with high assembly efficiency and reliable installation.

[0014] According to one embodiment of this application, the purlin has two purlin sidewalls, and a purlin bottom wall is connected between the two purlin sidewalls. The end of the clamp extends from the bottom wall of the purlin to the space between the two purlin sidewalls, and the adjusting member is rotatably inserted through the two purlin sidewalls.

[0015] And / or, the purlin fixing device further includes a purlin bracket, which is installed between the purlin and the main shaft.

[0016] According to one embodiment of this application, at least one of the following methods is included:

[0017] Method 1: One of the two adjusting members is adapted to be sequentially inserted into the two purlin sidewalls along a first direction, and the other is adapted to be sequentially inserted into the two purlin sidewalls along a second direction, wherein the first direction is opposite to the second direction.

[0018] Therefore, by setting the two adjusting components to be installed in opposite directions, the two ends of the clamp can be driven to move simultaneously through the two adjusting components, so that the force on the two ends of the clamp is more even, avoiding uneven force and deformation. This ensures that the purlin is evenly stressed and flat, thereby extending the service life of the clamp and improving the connection strength and stability of the clamp and adjusting components to the purlin and the main shaft.

[0019] Method 2: The top of the purlin bracket is provided with a support plane, which is adapted to support the bottom of the purlin. The bottom of the purlin bracket is provided with an arc-shaped support surface, which is in contact with the top of the main shaft.

[0020] According to one embodiment of this application, the purlin bracket is provided with two clearance holes, which are respectively used to avoid the two ends of the clamp;

[0021] And / or, the purlin bracket and the purlin are detachably connected by fasteners.

[0022] Thirdly, this application provides a photovoltaic bracket, which is provided with the purlin fixing device of any of the above embodiments.

[0023] According to the photovoltaic bracket of this application, the photovoltaic bracket includes a purlin fixing device. By setting the two ends of the clamp to engage with two adjusting parts respectively, the clamp can be driven to move when the adjusting parts rotate, so that the clamp opening moves closer to or away from the adjusting parts. This can drive the purlin and the main shaft to move closer to or away from each other, realizing the connection or disassembly of the purlin and the main shaft. The entire assembly and disassembly process is simpler and more convenient, with high assembly efficiency and reliable installation. Applying the purlin fixing device to the photovoltaic bracket can make the connection of multiple purlins simpler and more convenient, improve the overall assembly efficiency of the photovoltaic bracket, and facilitate the mass production of the photovoltaic bracket.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of the purlin fixing device provided in the embodiments of this application;

[0027] Figure 2This is a top view of the purlin fixing device provided in the embodiment of this application;

[0028] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0029] Figure 4 This is a partial schematic diagram of the purlin fixing device provided in an embodiment of this application;

[0030] Figure 5 This is a partial cross-sectional view of the purlin fixing device provided in the embodiments of this application;

[0031] Figure 6 This is a schematic diagram of the clamp structure of the purlin adjustment structure provided in the embodiments of this application.

[0032] Figure label:

[0033] Purlin fixing device 100, purlin adjusting structure 101,

[0034] Main shaft 1, purlin 2, purlin side wall 21, purlin bottom wall 22, through hole 221, through hole 222, clamp 3, rack and pinion part 31, clamp opening 32, adjusting part 4, gear part 41, connecting nut 42, washer 43, support 5, guide groove 51, second connecting hole 52, purlin bracket 6, support plane 61, first connecting hole 611, arc-shaped support surface 62, clearance hole 63, fastener 7. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] The following is for reference. Figures 1-6 The purlin adjustment structure 101 according to the embodiment of this application can drive the clamp 3 to move when the adjustment member 4 rotates, so that the clamp opening 32 moves closer to or away from the adjustment member 4, thereby driving the purlin 2 and the main shaft 1 to move closer to or away from each other, realizing the connection or disassembly of the purlin 2 and the main shaft 1. The entire disassembly and assembly process is simpler and more convenient, with high assembly efficiency and reliable installation.

[0037] In this embodiment, the purlin adjustment structure 101 includes: a clamp 3 and an adjustment member 4.

[0038] The clamp 3 has a clamp opening 32 for the main shaft 1 to pass through. The adjusting member 4 is adapted to be installed on the purlin 2. The two adjusting members 4 are respectively engaged with the two ends of the clamp 3. The adjusting member 4 is adapted to drive the clamp 3 to move when rotating so that the clamp opening 32 is close to or away from the adjusting member 4.

[0039] It should be noted that the purlin adjustment structure 101 is used to connect the purlin 2 to the main shaft 1, wherein the clamp 3 and the adjusting component 4 are used to achieve the connection and fixation between the purlin 2 and the main shaft 1. Figure 6 As shown, the clamp 3 has a clamp opening 32 for the spindle 1 to pass through. In actual design, the clamp 3 can be constructed as a U-shaped structure, and the clamp opening 32 can be U-shaped. The spindle 1 is passed through the clamp opening 31 of the U-shaped clamp, so that the clamp 3 can be connected to the spindle 1. The clamp 3 and the outer contour of the spindle 1 are matched, so that the clamp 3 fits the shape of the spindle 1 better and improves the stability of the connection between the clamp 3 and the spindle 1.

[0040] Furthermore, the adjusting member 4 is suitable for installation on the purlin 2. The adjusting member 4 can be rotatably connected to the purlin 2, allowing it to rotate relative to the purlin 2. The adjusting member 4 is detachably connected to the purlin 2, facilitating connection and disassembly. In this embodiment, the clamp 3 has two installation positions at both ends, corresponding to two adjusting members 4. The two adjusting members 4 are distributed one-to-one with the two ends of the clamp 3 and engage in a one-to-one transmission. Thus, the purlin 2 is connected to or disassembled from the main shaft 1 through the cooperation of the adjusting member 4 and the clamp 3.

[0041] Simultaneously, when the adjusting member 4 and the clamp 3 engage in forward transmission, the clamp 3 can be driven to move forward, causing the clamp opening 32 to approach the adjusting member 4, which allows the main shaft 1 and the purlin 2 to approach each other. This allows the clamp 3 to clamp the main shaft 1 and the purlin 2, thus achieving the connection and fixation of the purlin 2 and the main shaft 1. When the adjusting member 4 and the clamp 3 engage in reverse transmission, the clamp 3 can be driven to move in the opposite direction, causing the clamp opening 32 to move away from the adjusting member 4. This allows the purlin 2 and the main shaft 1 to move away from each other, so that the clamp 3 does not apply clamping force to the main shaft 1 and the purlin 2, allowing them to be released and the purlin 2 and the main shaft 1 to be disassembled.

[0042] Therefore, through the meshing transmission between the adjusting member 4 and the clamp 3, the clamp 3 can be driven to move linearly, thereby causing the clamp opening 32 to move closer to or further away from the adjusting member 4. By adjusting the distance between the clamp opening 32 and the adjusting member 4, the connection between the main shaft 1 and the purlin 2 can be achieved. The entire adjustment process is simpler, more convenient, and more reliable. Furthermore, the purlin 2 and the main shaft 1 are detachably connected via the clamp 3 and the adjusting member 4, allowing the purlin 2 to be disassembled relative to the main shaft 1, facilitating subsequent maintenance.

[0043] Furthermore, the movement of both ends of the clamp 3 can be adjusted simultaneously by the two adjusting members 4, so that the clamp opening 32 is closer to or further away from the two adjusting members 4. This makes the force on both ends of the clamp 3 of the purlin adjustment structure 101 more balanced, improves the reliability and stability of the connection between the clamp 3 and the purlin 2 and the main shaft 1, and further improves the reliability and stability of the photovoltaic module, so as to improve the environmental adaptability of the purlin 2 and the photovoltaic module, thereby improving the stability and reliability of the photovoltaic module's power generation.

[0044] It should be noted that the two adjusting parts 4 can be engaged with the two ends of the clamp 3 through toothed, threaded or other shapes, that is, the adjusting parts 4 and the clamp 3 can be connected through a transmission structure such as a gear and rack.

[0045] Generally, in existing technologies, the purlin 2 and the lower support of the main shaft 1 are installed and tightened by connecting them with straight bolts. This method of fastening results in the bolts being suspended in the air, which leads to insufficient structural strength and stability. Alternatively, U-bolts are used, which are fastened with nuts inside the purlin 2. This method is not convenient for installation in limited space, and subsequent adjustments or disassemblies become very difficult after the photovoltaic modules are installed. Using the installation method of the adjusting component 4 and clamp 3 in this embodiment, the installation of the purlin 2 and the main shaft 1 can be made simpler, maintenance is simpler and more convenient, the work difficulty is reduced, and the installation strength and structural stability are higher.

[0046] According to the purlin adjustment structure 101 provided in this application embodiment, by setting the two ends of the clamp 3 to engage with two adjusting members 4 respectively, the clamp 3 can be driven to move when the adjusting member 4 rotates, so that the clamp opening 32 moves closer to or away from the adjusting member 4, thereby driving the purlin 2 and the main shaft 1 to move closer to or away from each other, realizing the connection or disassembly of the purlin 2 and the main shaft 1. The two adjusting members 4 can drive the two ends of the clamp 3 to move simultaneously, so that the two ends of the clamp 3 are subjected to more uniform force, thereby ensuring the uniform force and flatness of the purlin 2. The engagement between the adjusting member 4 and the end of the clamp 3 facilitates operation in a limited space, and the connection and disassembly of the purlin 2 and the main shaft 1 are facilitated by rotating the adjusting member 4. The subsequent disassembly and assembly process is simpler, the assembly efficiency is high and the installation is reliable, and the on-site installation process is reduced, saving labor costs.

[0047] In some embodiments, both ends of the clamp 3 have a mating rack portion 31, and the outer peripheral wall of the adjusting member 4 has a mating gear portion 41, which is adapted to drive the mating rack portion 31 to move linearly when rotating.

[0048] Thus, the meshing transmission between the rack and pinion 31 and the gear 41 is a rack and pinion transmission structure, which can realize the conversion between rotary motion and linear motion. In this embodiment, the rack and pinion 31 is provided at both ends of the clamp 3, and the gear 41 is provided at both ends of the two adjusting members 4. When the two adjusting members 4 rotate, the corresponding gear 41 will rotate. And through the meshing of the two sets of gear 41 with the rack and pinion 31, the two rack and pinion 31 can be driven to move linearly, thereby driving the two ends of the clamp 3 to move linearly.

[0049] In practical design, such as Figure 5 and Figure 6 As shown, at least a portion of the structure at both ends of the clamp 3 can be configured as a mating rack portion 31, the mating rack portion 31 extending linearly along both ends of the clamp 3, and as... Figure 5 As shown, the outer peripheral wall of the adjusting member 4 is formed as a mating gear portion 41, which extends circumferentially along the outer peripheral wall of the adjusting member 4. At least a portion of the structure of the adjusting member 4 is configured as the mating gear portion 41. The tooth profiles of the mating gear portion 41 and the mating rack portion 31 can be the same, which facilitates reliable meshing between the two and improves the reliability of installation and the stability of motion transmission.

[0050] Therefore, the machining of the rack and pinion part 31 and the gear part 41 is simple and convenient, the motion transmission is reliable, and compared with ordinary bolt fastening, it is more time-saving and labor-saving for the operator, and the assembly efficiency is higher.

[0051] In some embodiments, two mating rack portions 31 are respectively formed on the outer surfaces of the clamp 3 opposite to each other at both ends, and two adjusting members 4 are respectively located on the outer sides of the clamp 3 away from each other at both ends.

[0052] In practical design, such as Figure 5 As shown, both ends of the clamp 3 are provided with mating rack portions 31. The two mating rack portions 31 can be symmetrically distributed along both ends of the clamp 3, and the two mating rack portions 31 are distributed on opposite sides of each other at both ends of the clamp 3. That is, the two mating rack portions 31 are respectively located on the opposite outer sides of both ends of the clamp 3. Correspondingly, the two adjusting members 4 are respectively located on the outer sides of both ends of the clamp 3, that is, the mating gear portions 41 of the two adjusting members 4 are respectively located on the opposite side of the two mating rack portions 31, which can form two sets of meshing gear portions 41 and mating rack portions 31. Moreover, the two mating gear portions 41 are respectively directly opposite the two mating rack portions 31, which is conducive to stable and reliable meshing between the two.

[0053] Therefore, by engaging with the adjusting member 4 on the opposite sides of the clamp 3, the space on the outer sides of the clamp 3 can be occupied, making the installation and adjustment process of the adjusting member 4 and the clamp 3 simpler and more convenient, and avoiding interference with the main shaft 1. The structure is symmetrical and the layout is reasonable.

[0054] In some embodiments, the purlin adjustment structure 101 further includes a support member 5, which is adapted to support the purlin 2. The two ends of the support member 5 in the longitudinal direction are adapted to support the two ends of the clamps 3 facing each other.

[0055] In this way, the purlin 2 can be supported by the support member 5, which can enhance the structural strength of the purlin 2. The two ends of the support member 5 in the length direction support the two ends of the clamp 3 respectively, which can form a support force in opposite directions on the clamp 3. Furthermore, the outer sides of the two ends of the clamp 3 engage with the adjusting member 4, which can make the engagement between the clamp 3 and the adjusting member 4 more reliable, thereby improving the reliability of the engagement between the adjusting member 4 and the clamp 3, and thus improving the connection stability between the purlin 2 and the main shaft 1.

[0056] In practical design, such as Figure 2 , Figure 3 and Figure 5 As shown, the support member 5 can be located inside the purlin 2 and connected to the purlin 2, providing support for the purlin 2. At least a portion of the support member 5 is located between the two ends of the clamp 3. The two ends of the support member 5 in the length direction support the two sides of the clamp 3 facing each other, respectively. This allows the two ends of the support member 5 to apply the same supporting force to the two ends of the clamp 3, resulting in a more balanced overall force and a more stable structure.

[0057] Among them, the support 5 and the purlin 2 can be detachably connected by fasteners such as bolts 7, which is simple to connect and easy to disassemble and assemble.

[0058] In addition, the support 5 can be constructed as a U-shaped structure or a strip structure, which is simple in structure and has low processing cost.

[0059] In some embodiments, guide grooves 51 are formed at both ends of the support member 5 along its length, and the two ends of the clamp 3 are respectively inserted into the two guide grooves 51.

[0060] In this way, the guide grooves 51 at both ends of the support member 5 along its length direction allow the two ends of the clamp 3 to be respectively inserted into the two guide grooves 51 to guide the two ends of the clamp 3. This makes it more reliable for the two adjusting members 4 to drive the two ends of the clamp 3 to move in a straight line when rotating, thereby ensuring the movement accuracy of the clamp 3. The whole operation process is also simpler and more convenient, thus improving assembly efficiency and assembly reliability.

[0061] In the actual design, guide grooves 51 are formed at both ends of the support member 5. The two guide grooves 51 are located at both ends of the length direction of the support member 5 and extend along the movement direction of both ends of the clamp 3, and are set through the upper and lower ends of the support member 5. In this way, both ends of the clamp 3 can be inserted into the guide grooves 51, so as to realize that the adjusting member 4 drives the clamp 3 to move in the direction of approaching or moving away from the adjusting member 4 within the guide grooves 51. Among them, such as Figure 2 and Figure 3 As shown, the two guide grooves 51 are each provided with an open side, and the two guide grooves 51 are open in a direction away from each other. That is, the two guide grooves 51 are open in a one-to-one correspondence towards the two adjusting members 4. In this way, the two guide grooves 51 can avoid the two ends of the clamp 3, and at least the two ends of the clamp 3 can be located in the two guide grooves 51 in a one-to-one correspondence. Furthermore, the mating rack parts 31 of the two ends of the clamp 3 away from each other can mesh with the mating gear parts 41 of the two adjusting members 4. This arrangement makes the structure more compact and reasonable, and can ensure that the two adjusting members 4 can reliably drive the two ends of the clamp 3 to move along the corresponding guide grooves 51.

[0062] Among them, the two guide grooves 51 can be constructed as square grooves. The two guide grooves 51 are matched with the outer shape structure of the two ends of the clamp 3, which facilitates the two guide grooves 51 to reliably guide and limit the two ends of the clamp 3, so as to ensure the reliability of the reciprocating motion of the clamp 3.

[0063] In addition, the support member 5 is located between the two adjusting members 4, and the extension length of the support member 5 is less than the distance between the two adjusting members 4. That is, the support member 5 and the two adjusting members 4 are distributed at intervals, which can avoid interference between the support member 5 and the two adjusting members 4 and facilitate the smooth movement of the two ends of the clamp 3 and the two adjusting members 4.

[0064] This application also provides a purlin fixing device 100.

[0065] In this embodiment, the purlin fixing device 100 includes a main shaft 1, a purlin 2, and a purlin adjusting structure 101 of any of the above embodiments. The purlin 2 is installed on the main shaft 1, the main shaft 1 passes through the clamping hole 32, and the adjusting member 4 is rotatably installed on the purlin 2.

[0066] It should be noted that the purlin fixing device 100 is used to connect the purlin 2 to the main shaft 1. The main shaft 1 is a fixing and supporting structure. The purlin 2 can be supported and fixed through the main shaft 1. The purlin 2 is located above the main beam and is a part used to connect the photovoltaic module. The photovoltaic module can then be connected to the main shaft 1 to realize the installation of the photovoltaic module.

[0067] Among them, the purlin 2 is installed on the main shaft 1. The purlin 2 can be connected to the outside of the main shaft 1. The main shaft 1 passes through the clamping hole 32, so that the clamp 3 can be sleeved on the outside of the main shaft 1. The adjusting member 4 is rotatably installed on the purlin 2, so that the adjusting member 4 can be connected to the purlin 2. The adjusting member 4 can rotate relative to the purlin 2 to realize the adjusting function of the adjusting member 4.

[0068] In actual installation, the adjusting member 4 is first installed on the purlin 2, and the main shaft 1 is inserted into the clamping hole 32. Then, the mating rack parts 31 at both ends of the clamp 3 are respectively engaged with the mating gear parts 41 of the two adjusting members 4. By adjusting the rotation of the two adjusting members 4, the clamping hole 32 of the clamp 3 can be driven closer to the adjusting member 4. When the inner wall of the clamping hole 32 is tightly fitted with the outer contour of the main shaft 1, the connection between the main shaft 1 and the purlin 2 can be realized. Conversely, when the rotation of the two adjusting members 4 is adjusted in the opposite direction, the clamping hole 32 of the clamp 3 can be driven away from the adjusting member 4. When the inner wall of the clamping hole 32 is tightly fitted with the outer contour of the main shaft 1, the connection between the main shaft 1 and the purlin 2 can be realized. When the inner wall of the clamping hole 32 is separated from the outer contour of the main shaft 1, the main shaft 1 and the purlin 2 can be disassembled.

[0069] Therefore, by setting the purlin adjustment structure 101 for the installation of purlin 2 and main shaft 1, and by rotating the adjustment component 4, the connection and disassembly of purlin 2 and main shaft 1 can be facilitated. The subsequent disassembly and assembly process is simpler, the assembly efficiency is high and the installation is reliable. It also reduces on-site installation procedures, saves labor costs, and is conducive to mass production.

[0070] In some embodiments, the purlin 2 has two purlin sidewalls 21, and a purlin bottom wall 22 is connected between the two purlin sidewalls 21. The end of the clamp 3 extends from the purlin bottom wall 22 to the space between the two purlin sidewalls 21, and the adjusting member 4 is rotatably inserted through the two purlin sidewalls 21.

[0071] In this way, the clamp 3 extends from the bottom wall 22 of the purlin to between the two side walls 21 of the purlin, allowing the clamp 3 to connect with the bottom wall 22 of the purlin. The adjusting member 4 is rotatably inserted through the two side walls 21 of the purlin, allowing the adjusting member 4 to connect with the two side walls 21 of the purlin. The two ends of the clamp 3 extend from the bottom of the purlin 2 into the purlin 2, allowing the meshing rack portion 31 at both ends of the clamp 3 to mesh with the meshing gear portion 41 of the two adjusting members 4. The clamp 3 is sleeved on the outside of the main shaft 1, and the two ends of the clamp 3 extend into the purlin 2 to mesh with the two adjusting members 4, which can realize the connection and fixation between the purlin 2 and the main shaft 1. The operation of the ends of the clamp 3 and the adjusting member 4 in the limited space inside the purlin 2 is more convenient, which is beneficial to the installation and maintenance of the main shaft 1 and the purlin 2.

[0072] In practical design, such as Figure 1As shown, the purlin 2 has a purlin bottom wall 22 and two purlin side walls 21. The purlin bottom wall 22 is connected between the two purlin side walls 21, and the two purlin side walls 21 are bent and connected to the purlin bottom wall 22, so that the two purlin side walls 21 and the purlin bottom wall 22 form a receiving space for accommodating the end of the clamp 3. The bending angle of the two purlin side walls 21 to the purlin bottom wall 22 can be set to be right angle. The purlin bottom wall 22 is provided with two through holes 221. The inner diameter of the two through holes 221 is larger than the outer diameter of the two ends of the clamp 3, so as to avoid the clamp 3. In this way, the two ends of the clamp 3 can pass through the two through holes 221 of the purlin bottom wall 22 and extend into the receiving space. Furthermore, the two through holes 221 are distributed one-to-one with the two ends of the two clamps 3, which facilitates the simultaneous passage of the two ends of the clamps 3 through the through holes 221, making installation convenient and quick. In addition, the structure is simple and easy to process.

[0073] Furthermore, the adjusting component 4 can be constructed as a connecting bolt. The outer peripheral wall of the connecting bolt is provided with a mating gear portion 41. One end of the connecting bolt is a limiting protrusion. Each of the two purlin sidewalls 21 is provided with a mounting hole. The connecting bolt passes through the two mounting holes, and the limiting protrusion abuts against one purlin sidewall 21. The other end of the connecting bolt extends to the outside of the other purlin sidewall 21 and is threadedly engaged with the connecting nut 42 outside the purlin sidewall 21. Figure 4 As shown, a gasket 43 is provided between the limiting protrusion and one purlin sidewall 21, and a gasket 43 is provided between the connecting nut 42 and another purlin sidewall 21. The connection between the connecting bolt and the two purlin sidewalls 21 can be made more secure and reliable through the two gaskets 43.

[0074] After the connecting bolt connects the main shaft 1 and the purlin 2 by engaging the gear part 41 with the rack part 31 at the end of the clamp 3, the connecting nut 42 is locked with the connecting bolt. This ensures that the connection between the main shaft 1 and the purlin 2 is firm and reliable. When disassembly is required, the connecting nut 42 and the connecting bolt are loosened. The main shaft 1 and the purlin 2 can be released by the reverse engagement of the connecting bolt and the clamp 3. The installation process is reliable and the disassembly and assembly are convenient.

[0075] The purlin 2 also includes two upper sidewalls, which are used for connecting photovoltaic modules. The two upper sidewalls are bent and connected to the two sidewalls 21, and the bending angles of the two sidewalls 21 to the two upper sidewalls can be set to be right angles. The purlin 2 has a Z-shaped structure, meaning that it can be formed by bending sheet metal, which is simple to process and low in cost.

[0076] In other embodiments, the purlin fixing device 100 further includes a purlin bracket 6, which is installed between the purlin 2 and the main shaft 1, allowing the purlin 2 and the main shaft 1 to be spaced apart and indirectly connected through the purlin bracket 6, so that the purlin bracket 6 can support the purlin 2 and the main shaft 1, thereby improving the connection stability between the purlin 2 and the main shaft 1.

[0077] In some embodiments, the purlin fixing device 100 includes at least one of the following methods:

[0078] Method 1: One of the two adjusting members 4 is adapted to be sequentially inserted into the two purlin sidewalls 21 along the first direction, and the other is adapted to be sequentially inserted into the two purlin sidewalls 21 along the second direction, and the first direction is opposite to the second direction.

[0079] In other words, the two adjusting members 4 are installed in different directions. One of the two adjusting members 4 can be sequentially connected to the two purlin sidewalls 21 along the first direction, and the other of the two adjusting members 4 can be sequentially connected to the two purlin sidewalls 21 along the second direction. This can achieve the connection of the two adjusting members 4 to the two purlin sidewalls 21 in different directions at the same time.

[0080] In actual design, both adjusting members 4 extend along either the first or the second direction, such as Figure 4 As shown, one adjusting member 4 passes through one purlin sidewall 21 to the other purlin sidewall 21 along a first direction, and the other adjusting member 4 passes through the other purlin sidewall 21 to the first purlin sidewall 21 along a second direction. This allows the two adjusting members 4 to be installed in different directions. The first or second direction can be perpendicular to the two purlin sidewalls 21. The perpendicular setting can shorten the length of the two adjusting members 4 and facilitate the engagement of the two adjusting members 4 with the two ends of the clamp 3 respectively. In this way, less space is occupied and the structural arrangement is more compact.

[0081] Furthermore, by setting two adjusting members 4 to be installed in parallel and opposite directions respectively, when both adjusting members 4 rotate clockwise, the forward meshing of the gear part 41 and the rack part 31 can drive the two ends of the clamp 3 to drive the main shaft 1 and the purlin 2 to move closer to each other, so as to realize the connection between the main shaft 1 and the purlin 2. When both adjusting members 4 rotate counterclockwise, the reverse meshing of the gear part 41 and the rack part 31 can drive the two ends of the clamp 3 to drive the main shaft 1 and the purlin 2 away from each other, so as to loosen the main shaft 1 and the purlin 2 and disassemble the purlin 2 from the main shaft 1.

[0082] Therefore, the clockwise locking and counterclockwise loosening method is more in line with the operator's daily operating habits, making operation easier and improving assembly efficiency. The two adjusting components 4 are installed in opposite directions, allowing the two ends of the clamp 3 to move simultaneously. This ensures more even force distribution on both ends of the clamp 3, preventing uneven force and deformation. This, in turn, ensures uniform force distribution and flatness on the purlin 2, extending the service life of the clamp 3 and improving the connection strength and stability between the clamp 3 and the adjusting components 4 and the purlin 2 and spindle 1.

[0083] The first direction can be set to be opposite to and parallel to the second direction. The first direction can be forward or backward, and the second direction can be backward or forward. Alternatively, the first direction can be left or right, and the second direction can be right or left.

[0084] It should also be noted that the two adjusting components 4 can be installed in the same direction. Both adjusting components 4 can be inserted into the two purlin sidewalls 21 along either the first direction or the second direction. This allows the two adjusting components 4 to connect to the two purlin sidewalls 21 simultaneously in the same direction. That is, both adjusting components 4 can be inserted from one purlin sidewall 21 to the other, or both adjusting components 4 can be inserted from the other purlin sidewall 21 to one purlin sidewall 21. In this way, by rotating one adjusting component 4 clockwise and the other counterclockwise, the two ends of the clamp 3 can be driven to move the main shaft 1 and the purlin 2 closer to or further away from each other, thereby connecting or disassembling the main shaft 1 and the purlin 2. With this configuration, the installation of the two adjusting components 4 is simple and convenient, and the installation methods are diverse and can be flexibly selected.

[0085] Method 2: The top of the purlin bracket 6 is provided with a support plane 61, which is suitable for supporting the bottom of the purlin 2. The bottom of the purlin bracket 6 is provided with an arc-shaped support surface 62, which is attached to the top of the main shaft 1.

[0086] In this way, the purlin bracket 6 can support the bottom of the purlin 2 through the supporting plane 61, and the purlin bracket 6 and the purlin 2 are in surface contact, which can increase the connection area between the purlin bracket 6 and the purlin 2, thereby improving the connection stability between the purlin 2 and the purlin bracket 6. Furthermore, the purlin bracket 6 can fit against the top of the main shaft 1 through the arc-shaped supporting surface 62, which can improve the connection tightness between the purlin bracket 6 and the main shaft 1, thereby improving the connection stability and reliability between the purlin bracket 6 and the main shaft 1. This makes the connection between the main shaft 1 and the purlin 2 more stable and reliable, and can improve the wind resistance of the main shaft 1 and the purlin 2, thereby improving the environmental adaptability of the purlin 2 and the main shaft 1.

[0087] In practical design, such as Figure 1 As shown, the purlin bracket 6 is located between the purlin 2 and the main shaft 1. The purlin 2 is positioned above the main shaft 1. The top of the purlin bracket 6 is designed as a support plane 61, which is fitted and connected to the bottom wall 22 of the purlin 2 to support the bottom of the purlin 2. The bottom of the purlin bracket 6 is designed as an arc-shaped support surface 62, which is concave in a direction away from the main shaft 1. The arc-shaped support surface 62 is matched with the top shape of the main shaft 1, allowing it to fit well against the top of the main shaft 1 and improving the connection reliability between the purlin bracket 6 and the main shaft 1. The arc-shaped support surface 62 can be located in the middle of the purlin bracket 6, and the arc-shaped support surfaces 62 are symmetrically distributed along the length of the purlin bracket 6, resulting in a symmetrical structure and more reliable overall strength.

[0088] The purlin 6 can be constructed as a U-shaped structure. The purlin 6 fits against the top of the main shaft 1 through two arc-shaped support surfaces 62, which can improve the connection stability between the purlin 6 and the main shaft 1. The U-shaped purlin 6 can be formed by bending sheet metal, which is simple to process and low in cost. Alternatively, the purlin 6 can be constructed as a block structure, etc.

[0089] Furthermore, the center of the arc-shaped support surface 62 is bent to form a bottom support surface, which is in close contact with the top of the main shaft 1. That is, the bottom of the purlin bracket 6 is in close contact with the top of the main shaft 1 through the central bottom support surface and the two arc-shaped support surfaces 62 located on both sides of the bottom support surface, which increases the contact area between the purlin bracket 6 and the main shaft 1, thereby improving the connection strength between the purlin bracket 6 and the main shaft 1. Its arrangement can be varied and can be flexibly selected.

[0090] In some embodiments, the purlin bracket 6 is provided with two clearance holes 63, which are respectively used to avoid the two ends of the clamp 3. In this way, the two ends of the clamp 3 can pass through the two clearance holes 63 from the bottom of the purlin bracket 6 and can extend into the bottom of the purlin 2, so that the clamp 3 can connect the main shaft 1 with the purlin bracket 6 and the purlin 2.

[0091] In practical design, such as Figure 5 As shown, two clearance holes 63 are provided on the support plane 61 of the purlin bracket 6. The two clearance holes 63 are spaced apart along the length of the purlin bracket 6, and the two clearance holes 63 are distributed one-to-one with the two ends of the clamp 3. The bottom of the purlin 2 is provided with two through holes 221, which are distributed one-to-one with the two clearance holes 63. The two through holes 221 are also distributed one-to-one with the guide grooves 51 at both ends of the support member 5, so that the two ends of the clamp 3 can pass through the two clearance holes 63, the two through holes 221 and the two guide grooves 51 in sequence.

[0092] The two clearance holes 63 can be constructed as round holes. The two round holes extend along the length of both ends of the clamp 3 and penetrate the support plane 61 of the purlin 6. The diameter of the two round holes is larger than the outer diameter of both ends of the clamp 3, which can realize the clearance of the two round holes to the ends of the clamp 3. The ends of the clamp 3 can easily pass through the two clearance holes 63, and the structure is simple and easy to process.

[0093] In other embodiments, the purlin bracket 6 and the purlin 2 are detachably connected by fasteners 7, such as bolts, rivets, etc. The purlin bracket 6 and the purlin 2 are connected by bolts, rivets, etc., which is simple to connect and easy to assemble.

[0094] Among them, such as Figure 5As shown, the purlin bracket 6 has two first connecting holes 611, which are spaced apart along the length of the purlin bracket 6. A support member 5 is connected inside the purlin 2. Correspondingly, the support member 5 has a second connecting hole 52, and the bottom of the purlin 2 has two through holes 222. The two through holes 222 are distributed one-to-one with the two first connecting holes 611 and the two second connecting holes 52. In this way, by sequentially inserting two bolts into the two second connecting holes 52, the two through holes 222, and the two first connecting holes 611, the support member 5, the purlin 2, and the purlin bracket 6 can be connected. The connection strength of the support member 5, the purlin 2, and the purlin bracket 6 can be improved by using two bolts. Moreover, the three of them share two bolts, which saves the number of fasteners 7 and reduces costs.

[0095] This application also provides a photovoltaic bracket.

[0096] In this embodiment, the photovoltaic bracket is provided with a purlin fixing device 100 of any of the above embodiments. The purlin fixing device 100 can connect the purlin 2 to the main shaft 1. Applying the purlin fixing device 100 to the photovoltaic bracket can make the connection of multiple purlins 2 simpler and more convenient, improve the overall assembly efficiency of the photovoltaic bracket, and facilitate the mass production of the photovoltaic bracket.

[0097] The purlin fixing device 100 includes a main shaft 1, a purlin 2, and a purlin adjusting structure 101. The purlin adjusting structure 101 includes a clamp 3 and two adjusting members 4. By setting the two ends of the clamp 3 to engage with the two adjusting members 4 respectively, the clamp 3 can be driven to move when the adjusting members 4 rotate, so that the clamp opening 32 moves closer to or away from the adjusting members 4, thereby driving the purlin 2 and the main shaft 1 to move closer to or away from each other. This can realize the connection or disassembly of the purlin 2 and the main shaft 1. The whole disassembly and assembly process is simpler and more convenient, with high assembly efficiency and reliable installation.

[0098] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0099] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0100] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0101] In the description of this application, "multiple" means two or more.

[0102] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0103] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0104] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0105] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A purlin adjustment structure, characterized in that, include: A clamp having a clamp opening for inserting a main shaft; Two adjusting members are provided, which are adapted to be installed on the purlin. The two adjusting members are respectively engaged with the two ends of the clamp in a one-to-one correspondence. The adjusting members are adapted to drive the clamp to move when rotated so that the clamp opening moves closer to or away from the adjusting member.

2. The purlin adjustment structure according to claim 1, characterized in that, Both ends of the clamp have mating rack portions, and the outer peripheral wall of the adjusting member has mating gear portions. The mating gear portions are adapted to drive the mating rack portions to move linearly when rotating.

3. The purlin adjustment structure according to claim 2, characterized in that, The two mating racks are respectively formed on the outer surfaces of the clamp at both ends, away from each other, and the two adjusting members are respectively located on the outer sides of the clamp at both ends, away from each other.

4. The purlin adjustment structure according to claim 1, characterized in that, It also includes a support member adapted to support the purlin, wherein the two ends of the support member along its length are adapted to support the two ends of the clamps facing each other.

5. The purlin adjustment structure according to claim 4, characterized in that, Guide grooves are formed at both ends of the support member along its length, and the two ends of the clamp are respectively inserted into the two guide grooves.

6. A purlin fixing device, characterized in that, The device includes a main shaft, a purlin, and a purlin adjustment structure as described in any one of claims 1-5, wherein the purlin is mounted on the main shaft, the main shaft passes through the clamp opening, and the adjustment member is rotatably mounted on the purlin.

7. The purlin fixing device according to claim 6, characterized in that, The purlin has two purlin sidewalls, and a purlin bottom wall is connected between the two purlin sidewalls. The end of the clamp extends from the bottom wall of the purlin to the space between the two purlin sidewalls, and the adjusting member is rotatably inserted through the two purlin sidewalls. And / or, the purlin fixing device further includes a purlin bracket, which is installed between the purlin and the main shaft.

8. The purlin fixing device according to claim 7, characterized in that, Including at least one of the following methods: Method 1: One of the two adjusting members is adapted to be sequentially inserted into the two purlin sidewalls along a first direction, and the other is adapted to be sequentially inserted into the two purlin sidewalls along a second direction, wherein the first direction is opposite to the second direction; Method 2: The top of the purlin bracket is provided with a support plane, which is adapted to support the bottom of the purlin. The bottom of the purlin bracket is provided with an arc-shaped support surface, which is in contact with the top of the main shaft.

9. The purlin fixing device according to claim 8, characterized in that, The purlin bracket is provided with two clearance holes, which are respectively used to avoid the two ends of the clamp; And / or, the purlin bracket and the purlin are detachably connected by fasteners.

10. A photovoltaic support structure, characterized in that, The purlin fixing device as described in any one of claims 6-9 is provided.

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