A fixing device with folded edge purlin and photovoltaic module support structure

Abstract

The application provides a fixing device for purlin with folded edge, which comprises a purlin support plate, a fastening assembly and a purlin support fastener, and the purlin support fastener locks the purlin with folded edge on the purlin support plate through the fastening assembly. The application optimizes the processing mode, fixing mode and stress mode of the purlin with folded edge. The purlin with folded edge does not need to be fixed by processing strip-shaped holes, thereby shortening the processing period, increasing the overall stress area and making the installation more stable. Meanwhile, the height of the purlin with folded edge is flexible and adjustable, thereby increasing the rotation angle and coping with more complex project environments.

Description

[Technical Field]

[0001] This invention relates to the field of photovoltaic system technology, specifically to a fixing device with folded purlins and a photovoltaic module support structure. [Background Technology]

[0002] Traditional purlins play a crucial role in building construction by bearing the roof load. They are tightly connected to the steel frame via bolts, ensuring the stability and safety of the roof. In the field of photovoltaic technology, photovoltaic purlins are essential supporting materials for solar panels. Their function is to support and secure the solar panels, ensuring their stability and safety in harsh environments such as wind, rain, and snow. Purlins can also adjust the angle and orientation of the solar panels to capture more solar energy and improve the efficiency of photovoltaic power generation.

[0003] In the field of photovoltaic technology, for example, attached Figure 1 and 2 As mentioned above, traditional purlins 200 with folded edges require corresponding holes to be machined, and then fixed to the purlin support plate 201 with bolts. This type of fixing method has the following technical problems:

[0004] 1. The purlin 200 and the purlin support plate 201 are fixed by bolts. The only fixing point is the bolt position. The contact surface is relatively small, the force is relatively concentrated, and the edge is prone to breakage due to the large force.

[0005] 2. The purlins in the same array have a wide variety of processing sizes and a long processing cycle. If a processing error is made, the area cannot be constructed.

[0006] 3. When installing purlin 200, the bolts need to be loosened again before passing through purlin 200 and purlin support plate 201, which is a complicated construction process; if the installation position is wrong, the installation cannot continue and the incorrect position needs to be reworked.

[0007] 4. The project site may have sloping terrain, and the purlin 200 needs to be rotated to adapt to the site during construction. The distance between the traditional purlin 200 and the longitudinal beam 202 is generally fixed, so the purlin 200 can only rotate around the longitudinal beam 202 at a fixed and small angle, which cannot cope with larger angles, resulting in a limited range of applications.

[0008] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. [Summary of the Invention]

[0009] The present invention aims to solve the above-mentioned technical problems by providing a fixing device and photovoltaic module support structure with folded edge purlins. It optimizes the processing method, fixing method, and stress-bearing method of the folded edge purlins. The folded edge purlins do not need to be fixed by processing strip holes, shortening the processing cycle. The overall stress-bearing area is large, and the installation is more stable. At the same time, the height of the folded edge purlins is flexibly adjustable, thereby increasing the rotation angle and being able to cope with more complex project environments.

[0010] The present invention is implemented as follows: a fixing device for a purlin with folded edges, comprising a purlin support plate, a fastening assembly, and a purlin support fastener, wherein the purlin support fastener locks the purlin with folded edges onto the purlin support plate through the fastening assembly.

[0011] Furthermore, the purlin support fastener includes a vertical side pressure plate, a horizontal connecting plate, a first vertical connecting plate, a horizontal support plate, a second vertical connecting plate, and a horizontal abutment plate; the vertical side pressure plate has a first side surface for pressing the purlin with folded edges against the purlin support plate, and a second side surface fixedly connected to one end of the horizontal connecting plate; the other end of the horizontal connecting plate is fixedly connected to the upper end of the first vertical connecting plate; the lower end of the first vertical connecting plate is fixedly connected to the end of the horizontal support plate away from the purlin support plate; the end of the horizontal support plate near the purlin support plate is fixedly connected to the upper end of the second vertical connecting plate; the lower end of the second vertical connecting plate is fixedly connected to the horizontal abutment plate, and a first circular through hole is formed through the second vertical connecting plate to cooperate with the fastening assembly; the end of the horizontal abutment plate near the purlin support plate has an abutment surface.

[0012] The vertical side pressure plate, the horizontal connecting plate, the first vertical connecting plate, and the horizontal support plate surround to form a folded edge receiving cavity, and a folded edge inlet is formed on the folded edge receiving cavity.

[0013] Furthermore, the purlin support plate is an L-shaped purlin support plate, which includes a vertical locking part and a horizontal locking part. The bottom of the vertical locking part is vertically and fixedly connected to the horizontal locking part, and an elongated through hole is formed on the vertical locking part along the vertical direction.

[0014] Furthermore, the fastening assembly includes a transverse bolt, which passes through an elongated through hole and its tail end is screwed into a first circular through hole to lock the purlin fastener onto the purlin plate.

[0015] Furthermore, the fastening assembly also includes a flange nut, and the transverse bolt is tightened by passing through the elongated through hole and the first circular through hole in sequence using the flange nut.

[0016] Furthermore, the side of the second vertical connecting plate away from the purlin support plate extends outward and is fixedly provided with an upper limit member and a lower limit member; the upper limit member, the second vertical connecting plate, and the lower limit member surround to form a limiting groove, and a limiting opening is formed between the upper limit member and the lower limit member.

[0017] Furthermore, the side of the vertical locking part facing the purlin fastener is the first toothed surface; the first side surface is the second toothed surface; and the abutting surface is the third toothed surface.

[0018] Furthermore, the purlin with folded edge is either a Z-shaped purlin with folded edge or a C-shaped purlin with folded edge; both the Z-shaped purlin with folded edge and the C-shaped purlin with folded edge include a rib and a folded edge, one end of which is fixedly connected to the bottom of the vertical rib.

[0019] Furthermore, the flange nut is either an external hexagonal flange nut or an external octagonal flange nut.

[0020] On the other hand, a photovoltaic module support structure includes a fixing device, a purlin with folded edges, and a longitudinal beam; the bottom of the fixing device is locked onto the longitudinal beam, and the purlin with folded edges is locked onto the fixing device.

[0021] The advantages of this invention are:

[0022] 1. The fixing and processing methods of purlins with folded edges have been optimized; since purlins with folded edges are not directly fixed by transverse bolts, there is no need to process strip holes on purlins with folded edges, thus reducing the processing cycle of purlins with folded edges.

[0023] 2. The stress distribution of the purlin with folded edges has been optimized; the vertical side pressure plate of the purlin support fastener presses against the inner rib of the purlin with folded edges, and the horizontal support plate of the purlin support fastener supports the bottom of the purlin with folded edges. The overall stress-bearing surface of the purlin with folded edges is increased, the stress area is more reasonable, the installation is more secure, and it is less likely to break the edge.

[0024] 3. The installation process of purlins with folded edges has been optimized; by using L-shaped purlin brackets and purlin bracket fasteners, it is not necessary to completely loosen the horizontal bolts and re-fix them when installing purlins with folded edges, reducing construction steps, lowering the probability of installation errors, and increasing construction efficiency.

[0025] 4. Folded-edge purlins are suitable for different site conditions; by machining long through holes on the L-shaped purlin support plate, the L-shaped purlin support plate and purlin support fastener can be used to raise the height of the folded-edge purlins, increase the suspension distance of the folded-edge purlins, and increase the adjustable range of the angle of the folded-edge purlins around the longitudinal beams, so as to cope with more complex project environments. [Attached Image Description]

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the connection structure of existing purlins, purlin support plates, and longitudinal beams.

[0028] Figure 2This is a schematic diagram of a purlin rotating around a longitudinal beam in existing technology.

[0029] Figure 3 This is a schematic diagram of the Z-shaped purlin with folded edges in this invention.

[0030] Figure 4 This is a schematic diagram of the C-shaped purlin with folded edges in this invention.

[0031] Figure 5 This is a schematic diagram of the photovoltaic module support structure in this invention.

[0032] Figure 6 This is a schematic diagram of the fixing device in this invention.

[0033] Figure 7 This is a schematic diagram of the purlin fastener structure in this invention.

[0034] Figure 8 This is a schematic diagram of the installation process of the C-shaped purlin with folded edges in this invention.

[0035] Figure label:

[0036] Purlin 200, purlin support plate 201, longitudinal beam 202,

[0037] Fixing device 100, purlin with folded edge 300, longitudinal beam 400,

[0038] Purlin support plate 1, vertical locking part 11, horizontal locking part 12, elongated through hole 13

[0039] Fastening assembly 2, transverse bolt 21, washer 22, flange nut 23,

[0040] Purlin fastener 3, vertical side pressure plate 31, first side 311, second side 312, horizontal connecting plate 32, first vertical connecting plate 33, horizontal support plate 34, second vertical connecting plate 35, horizontal top plate 36, top surface 361, first circular through hole 37, folded edge receiving cavity 38, folded edge inlet 39.

[0041] Upper limit component 41, lower limit component 42, limit groove 43, limit opening 44

[0042] Rib 51, Folded edge 52

[0043] 6 vertical bolts.

Detailed Implementation Methods

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention 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 the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0045] In this invention, reference Figures 3 to 4 As shown, the purlin 300 with folded edges is either a Z-shaped purlin 300 or a C-shaped purlin 300 with folded edges. Both the Z-shaped and C-shaped purlins with folded edges include a rib 51 and a folded edge 52, with one end of the folded edge 52 fixedly connected to the bottom of the rib 51.

[0046] refer to Figures 3 to 7 As shown, this invention provides a photovoltaic module support structure, including a purlin with folded edges 300, a fixing device 100, and a longitudinal beam 400. First, the bottom of the fixing device 100 is locked to the longitudinal beam 400, and then the purlin with folded edges 300 is locked to the fixing device 100, completing the connection between the purlin with folded edges 300 and the longitudinal beam 400. Alternatively, the purlin with folded edges 300 can be locked to the fixing device 100 first, and then the bottom of the fixing device 100 is locked to the longitudinal beam 400, completing the connection between the purlin with folded edges 300 and the longitudinal beam 400.

[0047] The present invention also provides a fixing device 100 for a purlin with a folded edge 300, including a purlin support plate 1, a fastening assembly 2, and a purlin support fastener 3. The purlin support fastener 3 locks the purlin with the folded edge 300 onto the purlin support plate 1 through the fastening assembly 2. The purlin support plate 1 is an L-shaped purlin support plate 1, and the purlin support fastener 3 includes a vertical side pressure plate 31, a horizontal connecting plate 32, a first vertical connecting plate 33, a horizontal support plate 34, a second vertical connecting plate 35, and a horizontal abutment plate 36.

[0048] The vertical side pressure plate 31 has a first side 311 for pressing the purlin with folded edge 300 against the purlin support plate 1, and a second side 312 for fixed connection to one end of the horizontal connecting plate 32; the first side 311 is used to cooperate with the L-shaped purlin support plate 1 to press down the rib 51 of the purlin with folded edge 300, and to clamp and fix it, and can also hold the rib 51 to prevent it from tipping over.

[0049] The other end of the transverse connecting plate 32 is fixedly connected to the upper end of the first vertical connecting plate 33; the transverse connecting plate 32 serves to horizontally connect the vertical side pressure plate 31 and the first vertical connecting plate 33. Preferably, the transverse connecting plate 32 is fixedly connected to the upper part of the second side to increase the volume of the folded edge accommodating cavity 38.

[0050] The lower end of the first vertical connecting plate 33 is fixedly connected to the end of the horizontal support plate 34 that is away from the purlin support plate 1; the height of the first vertical connecting plate 33 is greater than the height of the folded edge portion 52, thereby increasing the volume of the folded edge receiving cavity 38.

[0051] The end of the transverse support plate 34 near the purlin support plate 1 is fixedly connected to the upper end of the second vertical connecting plate 35. The transverse support plate 34 is used to support the bottom of the folded edge portion 52. Preferably, the length of the transverse support plate 34 is less than the length of the transverse connecting plate 32, so that a folded edge inlet 39 is formed between the bottom of the vertical side pressure plate 31 and the end of the transverse support plate 34.

[0052] The lower end of the second vertical connecting plate 35 is fixedly connected to the horizontal abutment plate 36. A first circular through hole 37 that cooperates with the fastening component 2 is formed through the second vertical connecting plate 35. The first circular through hole 37 allows the horizontal bolt 21 to pass through.

[0053] The transverse abutment plate 36 has an abutment surface 361 at one end near the purlin support plate 1; the transverse abutment plate 36 is used to press against the L-shaped purlin support plate 1 and also serves as a support to prevent the second vertical connecting plate 35 from being deformed by direct pressing.

[0054] The vertical side pressure plate 31, the horizontal connecting plate 32, the first vertical connecting plate 33, and the horizontal support plate 34 surround and form a folded edge receiving cavity 38, on which a folded edge inlet 39 is formed. The folded edge receiving cavity 38 is used to receive the folded edge portion 52 and can be applied to folded edge purlins 300 with different thicknesses and heights; the folded edge inlet 39 is used for the folded edge portion 52 to enter the folded edge receiving cavity 38.

[0055] The fixing device 100 of the present invention has at least the following beneficial technical effects:

[0056] 1. The fixing and processing methods of the purlin with folded edge 300 have been optimized; since the purlin with folded edge 300 is not directly fixed by the transverse bolt 21, there is no need to process the strip hole on the purlin with folded edge 300, and the processing cycle of the purlin with folded edge 300 is reduced.

[0057] 2. The stress distribution of the purlin with folded edge 300 has been optimized; the vertical side pressure plate 31 of the purlin support fastener 3 presses the inner rib 51 of the purlin with folded edge 300, and the horizontal support plate 34 of the purlin support fastener 3 supports the bottom of the purlin with folded edge 300. The overall stress-bearing surface of the purlin with folded edge 300 is increased, the stress area is more reasonable, the installation is more secure, and it is less likely to break the edge.

[0058] 3. The installation process of the purlin with folded edge 300 has been optimized; by cooperating with the L-shaped purlin support plate 1 and the purlin support fastener 3, when installing the purlin with folded edge 300, it is not necessary to completely loosen the horizontal bolts 21 and re-fix it, which reduces construction steps, reduces the probability of installation errors, and increases construction efficiency.

[0059] 4. The purlin with folded edge 300 is suitable for different site conditions; by processing long through holes 13 on the L-shaped purlin support plate 1, the L-shaped purlin support plate 1 and the purlin support fastener 3 can cooperate to raise the height of the purlin with folded edge 300, increase the suspension distance of the purlin with folded edge 300, and increase the adjustable range of the angle of the purlin with folded edge 300 around the longitudinal beam 400, so as to cope with more complex project environments.

[0060] In this invention, the L-shaped purlin support plate 1 includes a vertical locking part 11 and a horizontal locking part 12. The bottom of the vertical locking part 11 is vertically and fixedly connected to the horizontal locking part 12. An elongated through hole 13 is formed on the vertical locking part 11 along the vertical direction. A third circular through hole is formed through the horizontal locking part 12. A vertical bolt 6, in conjunction with a flat washer, a spring washer, and a nut, is placed at the bottom of the horizontal locking part 12. The horizontal locking part 12 is locked to the longitudinal beam 400 by the vertical bolt 6. The elongated through hole 13 on the vertical locking part 11 allows adjustment of the installation height of the fastening assembly 2, thereby allowing adjustment of the height of the purlin support fastener 3 and the purlin with folded edges 300.

[0061] In this invention, in order to lock the purlin fastener 3 and the purlin strip 300 with folded edges onto the L-shaped purlin plate 1, the fastening assembly 2 includes a transverse bolt 21, a washer 22, and a flange nut 23. The washer 22 has a second circular through hole through which the transverse bolt 21 passes. After the transverse bolt 21 passes through the second circular through hole, the elongated through hole 13, and the first circular through hole 37 in sequence, it is locked with the flange nut 23.

[0062] In this invention, to simplify the locking operation, the second vertical connecting plate 35, on the side away from the purlin support plate 1, is fixedly provided with an upper limit member 41 and a lower limit member 42 extending outward; the upper limit member 41, the second vertical connecting plate 35, and the lower limit member 42 surround to form a limiting groove 43, and a limiting opening 44 is formed between the upper limit member 41 and the lower limit member 42. When the fastening assembly 2 is installed, the flange nut 23 is placed in the limiting groove 43, and the flange nut 23 is just stuck on the limiting opening 44; then the horizontal bolt 21 passes through the second circular through hole, the elongated through hole 13, the first circular through hole 37, and the flange nut 23 in sequence, and then the horizontal bolt 21 is rotated using a wrench or other tools; since the flange nut 23 is stuck in the limiting opening 44 and cannot be rotated, the locking operation only needs to tighten the horizontal bolt 21 on one side, without the need to operate on both sides at the same time, thus improving the locking efficiency.

[0063] In this invention, the side of the vertical locking part 11 facing the purlin fastener 3 is the first toothed surface; the first side surface 311 is the second toothed surface; and the abutting surface 361 is the third toothed surface. The first toothed surface is in close contact with the outer surface of the rib 51, and the second toothed surface is in close contact with the inner surface of the rib 51, increasing the friction of the rib 51 and preventing the rib 51 from sliding. The first toothed surface and the third toothed surface mesh with each other, increasing the friction and preventing the purlin fastener 3 from sliding down.

[0064] In this invention, the first circular through hole 37 can be a first circular through hole 37 with internal threads or a first circular through hole 37 without internal threads, which can be applied to different types of bolts.

[0065] In this invention, the flange nut 23 is either an external hexagonal flange nut 23 or an external octagonal flange nut 23, and the flange nut 23 can be stably locked in the limiting port 44.

[0066] refer to Figure 8 As shown, in this invention, taking the C-type purlin with folded edge 300 as an example, its installation process includes the following steps:

[0067] Step 1: After the horizontal bolt 21 passes through the washer 22, the L-shaped purlin support plate 1 and the second vertical connecting plate 35 in sequence, screw the horizontal bolt 21 into the flange nut 23 to pre-lock the L-shaped purlin support plate 1.

[0068] Step 2: Tilt the purlin fastener 3 to enlarge the folded edge inlet 39, and then rotate the folded edge 52 of the C-shaped purlin 300 into the folded edge receiving cavity 38 of the purlin fastener 3 until the bottom of the folded edge 52 contacts the top surface of the transverse support plate 34 and the outer surface of the rib 51 is flush with the L-shaped purlin support plate 1.

[0069] Step 3: Move the C-shaped purlin with folded edge 300 and purlin bracket fastener 3 downwards to the corresponding positions;

[0070] Step 4: Tighten the horizontal bolt 21 to achieve the effect of securing the C-shaped purlin 300 with folded edge.

[0071] The installation process of the C-type purlin 300 of the present invention solves the problems of cumbersome installation, long processing cycle, and small adjustable angle between purlin and longitudinal beam 400 of traditional purlins by modular assembly and using a brand-new fixing method, thereby improving installation efficiency.

[0072] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A fixing device for a purlin with folded edges, characterized in that: It includes a purlin support plate, a fastening assembly, and a purlin support fastener, wherein the purlin support fastener locks the purlin with folded edges onto the purlin support plate via the fastening assembly; The purlin fastener includes a vertical side pressure plate, a horizontal connecting plate, a first vertical connecting plate, a horizontal support plate, a second vertical connecting plate, and a horizontal abutment plate. The vertical side pressure plate has a first side surface for pressing the purlin with a folded edge against the purlin support plate, and a second side surface fixedly connected to one end of the horizontal connecting plate. The other end of the horizontal connecting plate is fixedly connected to the upper end of the first vertical connecting plate. The lower end of the first vertical connecting plate is fixedly connected to the end of the horizontal support plate away from the purlin support plate. The end of the horizontal support plate near the purlin support plate is fixedly connected to the upper end of the second vertical connecting plate. The lower end of the second vertical connecting plate is fixedly connected to the horizontal abutment plate. A first circular through hole is formed through the second vertical connecting plate to cooperate with the fastening assembly. The end of the horizontal abutment plate near the purlin support plate has an abutment surface. The vertical side pressure plate, the horizontal connecting plate, the first vertical connecting plate, and the horizontal support plate surround to form a folded edge receiving cavity, and a folded edge inlet is formed on the folded edge receiving cavity. The purlin support plate is an L-shaped purlin support plate, which includes a vertical locking part and a horizontal locking part. The bottom of the vertical locking part is vertically and fixedly connected to the horizontal locking part. An elongated through hole is formed on the vertical locking part along the vertical direction. Adjusting the installation height of the fastening components will adjust the height of the purlin support fastener and the purlin with folded edge. The fastening assembly includes a transverse bolt, which passes through a long through hole and its tail end is screwed into a first circular through hole to lock the purlin fastener onto the purlin plate.

2. The fixing device for the purlin with folded edges as described in claim 1, characterized in that: The fastening assembly also includes a flange nut, and the transverse bolts are passed through the elongated through hole and the first circular through hole in sequence, and then locked with the flange nut.

3. The fixing device for the purlin with folded edges as described in claim 2, characterized in that: The side of the second vertical connecting plate away from the purlin support plate extends outward and is fixedly provided with an upper limit member and a lower limit member; the upper limit member, the second vertical connecting plate, and the lower limit member surround to form a limiting groove, and a limiting opening is formed between the upper limit member and the lower limit member.

4. The fixing device for the purlin with folded edges as described in claim 3, characterized in that: The side of the vertical locking part facing the purlin fastener is the first toothed surface; the first side surface is the second toothed surface; and the top surface is the third toothed surface.

5. The fixing device for the purlin with folded edges as described in claim 4, characterized in that: The purlin with folded edge is either a Z-type purlin with folded edge or a C-type purlin with folded edge; both the Z-type and C-type purlins with folded edge include a rib and a folded edge, with one end of the folded edge fixedly connected to the bottom of the vertical rib.

6. The fixing device for the purlin with folded edges as described in claim 5, characterized in that: The flange nut can be either an external hexagonal flange nut or an external octagonal flange nut.

7. A photovoltaic module support structure, characterized in that: It includes a fixing device for the purlin with folded edges as described in any one of claims 1-6, the purlin with folded edges, and a longitudinal beam; the bottom of the fixing device is locked onto the longitudinal beam, and the purlin with folded edges is locked onto the fixing device.

Images