Purline connecting piece, purline connecting structure and photovoltaic panel fixing device

Abstract

The utility model relates to the technical field of photovoltaic installation, and discloses a purline connecting piece, a purline connecting structure and a photovoltaic panel fixing device. The purline connecting piece comprises a first connecting part and a second connecting part, wherein the outer side face of the first connecting part and the inner side profile of a purline are arranged in a profiling mode; the inner side surface of the second connecting part and the outer side molded surface of the purline are arranged in a profiling manner; when two purlines are connected through the purline connecting piece, the outer side face of the first connecting part is suitable for being attached and fixed to the inner side molded surface of one purline, and the inner side face of the second connecting part is suitable for being attached and fixed to the outer side molded surface of the other purline. According to the utility model, the profiling arrangement of the first connecting part and the second connecting part is utilized to ensure that the two purlines can be tightly attached and stably connected, a gap generated by direct lap joint of the two purlines is avoided, and the connection stability of the purline connecting piece is improved, so that the installation stability of the photovoltaic panel fixing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic installation, and particularly relates to a purlin connector, a purlin connection structure and a photovoltaic panel fixing device. Background Art

[0002] During the process of photovoltaic installation, it is necessary to install and fix photovoltaic panels on the diagonal beam square tubes, and generally purlins are used as the intermediary for connecting the photovoltaic panels and the diagonal beam square tubes. As Figure 2 shown, the photovoltaic panel 100 and the diagonal beam square tube 200 are respectively connected to the purlin 300, so as to achieve the purpose of connecting the photovoltaic panel 100 and the diagonal beam square tube 200.

[0003] Generally, the standard length of a single purlin is 6 meters. If the total length of the purlins in the design scheme of the photovoltaic panel fixing device is greater than 6 meters, then splicing of multiple purlins is required. Currently, common purlins include "冂"-shaped purlins and "M"-shaped purlins, as shown in Figure 3 、 Figure 4 respectively. The common feature of such purlins 300 is that they have at least two bending positions 3001 in the same direction. Therefore, with the currently commonly used splicing method, that is, the inner surface 3002 of one purlin 300 is lapped on the outer surface 3003 of another purlin 300, and they are tightly squeezed and then the connection position is fastened. At this time, due to the existence of the two bending positions 3001 in the same direction, when the two purlins are lapped up and down, they cannot be completely fitted, and there will be a gap 400 at the splicing position, which affects the installation stability of the photovoltaic panel fixing device. Content of the Utility Model

[0004] In view of this, the utility model provides a purlin connector to solve the problem that there will be a gap at the splicing position of two purlins when splicing two purlins currently, which affects the installation stability of the photovoltaic panel fixing device. At the same time, the utility model provides a purlin connection structure, and the utility model provides a photovoltaic panel fixing device.

[0005] In a first aspect, the utility model provides a purlin connector suitable for connecting two purlins. The purlin has at least two bending positions in the same direction. The purlin connector includes: a first connection part, the outer surface of which is arranged in imitation of the inner surface of the purlin; a second connection part, the inner surface of which is arranged in imitation of the outer surface of the purlin. When the purlin connector connects two purlins, the outer surface of the first connection part is suitable for being attached to and fixed with the inner surface of one of the purlins, and the inner surface of the second connection part is suitable for being attached to and fixed with the outer surface of the other purlin.

[0006] Beneficial effects: The utility model provides a purlin connector, in which the outer side surface of the first connecting part is contoured to the inner side profile of the purlin, so that when the first connecting part is connected to a purlin, it can fit the inner side profile thereof; the inner side surface of the second connecting part is contoured to the outer side profile of the purlin, so that when the second connecting part is connected to another purlin, it can fit the outer side profile thereof; the contouring of the first connecting part and the second connecting part is utilized to ensure that the two purlins can fit tightly and be stably connected, avoiding gaps caused by directly overlapping the two purlins, thereby improving the connection stability of the purlin connector and thus improving the installation stability of the photovoltaic panel fixing device.

[0007] In an optional embodiment, a bending portion is formed between the first connecting portion and the second connecting portion, so that the second connecting portion is arranged to protrude outward from the first connecting portion.

[0008] Beneficial effect: When the first connection part and the second connection part are respectively connected to two purlins, the second connection part protruding outward from the first connection part can reduce the height difference of the connection position of the two purlins and improve the smoothness of the connection between the two purlins.

[0009] In an optional embodiment, the first connecting portion has two first connecting plates arranged opposite to each other, and the first connecting plate is connected to one of the purlins; the second connecting portion has two second connecting plates arranged opposite to each other, and the second connecting plate is connected to another of the purlins.

[0010] Beneficial effect: The two purlins are connected by the first connecting plate and the second connecting plate, ensuring that the purlin connecting piece is stably connected to the two purlins.

[0011] In an optional embodiment, the first connecting plate is provided with a plurality of first through holes, and bolts are passed through the first through holes and the mounting holes of one of the purlins for fastening connection; the second connecting plate is provided with a plurality of second through holes, and bolts are passed through the second through holes and the mounting holes of another of the purlins for fastening connection.

[0012] Beneficial effect: By setting a through hole on the first connecting plate or the second connecting plate, bolts are used to fasten the connection with the mounting holes corresponding to the purlins, thereby achieving a stable connection between the first connecting part and the second connecting part of the purlin connecting member and their respective corresponding purlins.

[0013] In an optional embodiment, the bending portion is inclined, and the inclination angle ranges from 30° to 90°.

[0014] Beneficial effect: The optimal inclination angle should be set to 90°, at which time the purlin can fit tightly with the side of the bent portion 3 and have the best integrity.

[0015] In an optional embodiment, the inclination angle is 45°.

[0016] Beneficial effect: Taking into account the difficulty of processing, the inclination angle is set to 45°, which reduces the difficulty of processing while ensuring the integrity of the purlins spliced ​​using purlin connectors.

[0017] In an optional embodiment, the cross-section of the first connecting portion and the cross-section of the second connecting portion are both in an "M" shape; the outer side surface of the first connecting portion is suitable for being fitted and fixed to the inner side surface of the "M"-shaped purlin; the inner side surface of the second connecting portion is suitable for being fitted and fixed to the outer side surface of the "M"-shaped purlin.

[0018] In a second aspect, the utility model further provides a purlin connection structure, comprising two purlins, and the purlin connection member described in the above embodiment, wherein the purlin connection member is connected between the two purlins.

[0019] Beneficial effects: The utility model provides a purlin connection structure, which utilizes a purlin connector to ensure that two purlins can fit tightly without generating a gap, thereby performing a stable connection to improve the connection stability of the purlin connection structure, thereby improving the installation stability of the photovoltaic panel fixing device.

[0020] In an optional embodiment, the cross-sections of the two purlins are both "M"-shaped and are arranged to be inclined downward along the same straight line, the upper purlin is connected to the top of the purlin connecting piece, and the lower purlin is connected to the bottom of the purlin connecting piece.

[0021] Beneficial effect: The groove structure in the middle of the "M"-shaped purlin is used to guide water, and the purlin connectors arranged in a corresponding contour are used to enable drainage after the purlin connectors are connected to the purlins; at the same time, the purlins, purlin connectors and another purlin on the same straight line are tilted downward and stacked from below in sequence, so that rainwater can flow down from the purlin to the purlin connector to another purlin in sequence, thereby improving the waterproof effect.

[0022] In a third aspect, the utility model further provides a photovoltaic panel fixing device, comprising the purlin connection structure described in the above embodiment.

[0023] Because the photovoltaic panel fixing device includes a purlin connection structure, it has the same effect as the purlin connection structure and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 Structural schematic diagram of a purlin connector provided by the present invention;

[0026] Figure 2 Structural schematic diagram of using purlins to connect photovoltaic panels and diagonal beam square tubes involved in the background technology of the present invention;

[0027] Figure 3 Cross-sectional schematic diagram of the splicing position of two "冂"-shaped purlins involved in the background technology of the present invention;

[0028] Figure 4 Cross-sectional schematic diagram of the splicing position of two "M"-shaped purlins involved in the background technology of the present invention.

[0029] Explanation of reference numerals:

[0030] 1. First connection part; 101. First connection plate; 1011. First through hole;

[0031] 2. Second connection part; 201. Second connection plate; 2011. Second through hole;

[0032] 3. Bending part;

[0033] 100. Photovoltaic panel;

[0034] 200. Diagonal beam square tube;

[0035] 300. Purlin; 3001. Bending position; 3002. Inner profile; 3003. Outer profile;

[0036] 400. Gap. Specific embodiments

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0038] The following will be combined with Figure 1 , Figure 2 , describe embodiments of the present utility model.

[0039] According to an embodiment of the present utility model, on the one hand, a purlin connector is provided, which is suitable for connecting two purlins 300. The purlin 300 has at least two same-direction bending positions 3001, as Figure 1 , Figure 2 shown. The purlin connector includes: a first connecting portion 1 and a second connecting portion 2.

[0040] The outer side surface of the first connecting portion 1 is configured to be in imitation of the inner profile surface 3002 of the purlin 300; the inner side surface of the second connecting portion 2 is configured to be in imitation of the outer profile surface 3003 of the purlin 300; when the purlin connector connects two purlins 300, the outer side surface of the first connecting portion 1 is suitable for being attached to and fixed with the inner profile surface 3002 of one of the purlins 300, and the inner side surface of the second connecting portion 2 is suitable for being attached to and fixed with the outer profile surface 3003 of the other purlin 300.

[0041] In the above embodiment, the outer side surface of the first connecting portion 1 is configured to be in imitation of the inner profile surface 3002 of the purlin 300, so that the first connecting portion 1 can be attached to the inner profile surface 3002 when connecting with one purlin 300; the inner side surface of the second connecting portion 2 is configured to be in imitation of the outer profile surface 3003 of the purlin 300, so that the second connecting portion 2 can be attached to the outer profile surface 3003 when connecting with the other purlin 300; the imitation settings of the first connecting portion 1 and the second connecting portion 2 ensure that the two purlins 300 can be closely attached and stably connected, avoiding the gaps generated by directly overlapping the two purlins 300, improving the connection stability of the purlin connector, and thus improving the installation stability of the photovoltaic panel fixing device.

[0042] Specifically, as Figure 1 shown, the first connecting portion 1 and the second connecting portion 2 are integrally formed on the purlin connector. The width of the first connecting portion 1 is 142 mm, the width of the second connecting portion 2 is 150 mm, the overall length of the first connecting portion 1 and the second connecting portion 2 is 320 mm, and the thickness of both is 1 mm.

[0043] Furthermore, in this embodiment, there is no limitation on the specific structural form of the first connecting portion 1 and the second connecting portion 2. As an implementation manner, the first connecting portion 1 and the second connecting portion 2 can be set to a "冂"-shaped cross-sectional structure for splicing two "冂"-shaped purlins; as another implementation manner, the first connecting portion 1 and the second connecting portion 2 can be set to an "M"-shaped cross-sectional structure for splicing two "M"-shaped purlins.

[0044] Furthermore, as Figure 1As shown, the first connecting portion 1 and the second connecting portion 2 can be fixed to the purlin 300, so that the purlin connecting member is stably connected to the purlin 300. In this embodiment, there is no limitation on the specific fixed connection manner between the first connecting portion 1 and the second connecting portion 2 and the purlin 300. Taking the fixed connection between the first connecting portion 1 and the purlin 300 as an example. As one implementation manner, the fixed connection is carried out by using an adhesive sprayed between the first connecting portion 1 and the purlin 300; as another implementation manner, through holes are opened at corresponding positions of the first connecting portion 1 and the purlin 300, and the fixed connection is carried out by using bolts.

[0045] In some embodiments, as Figure 1 shown, a bending portion 3 is formed between the first connecting portion 1 and the second connecting portion 2, so that the second connecting portion 2 protrudes outward from the first connecting portion 1.

[0046] In the above embodiment, when the first connecting portion 1 and the second connecting portion 2 are respectively connected to two purlins 300, the fact that the second connecting portion 2 protrudes outward from the first connecting portion 1 can reduce the height difference at the connection position of the two purlins 300 and improve the smoothness of the connection between the two purlins 300.

[0047] Specifically, as Figure 1 shown, the setting position of the bending portion 3 is distributed along the entire circumference of the cross-section of the purlin connecting member. By reasonably designing the distance that the second connecting portion 2 protrudes outward from the first connecting portion 1 and the respective thicknesses of the first connecting portion 1 and the second connecting portion 2, it can be ensured that the two purlins 300 are on the same straight line after being spliced by the purlin connecting member, thereby further improving the connection stability of the purlin connecting member.

[0048] In some embodiments, as Figure 1 shown, the first connecting portion 1 has two first connecting plates 101 arranged oppositely, and the first connecting plate 101 is connected to one of the purlins 300; the second connecting portion 2 has two second connecting plates 201 arranged oppositely, and the second connecting plate 201 is connected to the other purlin 300.

[0049] In the above embodiment, the two purlins 300 are connected through the first connecting plate 101 and the second connecting plate 201, ensuring the stable connection between the purlin connecting member and the two purlins 300.

[0050] Specifically, as Figure 1 shown, for a purlin connecting member having a cross-sectional structure in the shape of "冂" or "M", the first connecting plate 101 and the second connecting plate 201 are located on both sides of the purlin connecting member and are set as two vertical plates at both sides of the purlin connecting member. The two vertical plates are respectively connected to the two vertical plates on both sides of the purlin 300 with a corresponding shape, and the connection manners include bolt connection, bonding, snap connection, etc.

[0051] In some embodiments, Figure 1 As shown, the first connecting plate 101 is provided with a plurality of first through holes 1011, and bolts are passed through the first through holes 1011 and the mounting holes of one of the purlins 300 for fastening connection; the second connecting plate 201 is provided with a plurality of second through holes 2011, and bolts are passed through the second through holes 2011 and the mounting holes of another of the purlins 300 for fastening connection.

[0052] In the above embodiment, through holes are provided in the first connecting plate 101 or the second connecting plate 201, and bolts are used to fasten the bolts to the mounting holes corresponding to the purlin 300, thereby achieving a stable connection between the first connecting portion 1 and the second connecting portion 2 of the purlin connector and their respective corresponding purlins 300.

[0053] Specifically, the first through hole 1011 can be provided with one, two, three or even more, so that multiple bolts can be connected to improve the connection stability, and the second through hole 2011 is provided in the same manner. Figure 1 As shown, the first connecting part 1 has two first connecting plates 101 arranged opposite to each other, each of the first connecting plates 101 is provided with four first through holes 1011, and a total of eight first through holes 1011 are provided on a purlin connecting member; similarly, the second connecting part 2 has two second connecting plates 201 arranged opposite to each other, each of the second connecting plates 201 is provided with four second through holes 2011, and a total of eight second through holes 2011 are provided on a purlin connecting member.

[0054] In some embodiments, Figure 1 As shown, the bending portion 3 is tilted, and the tilt angle ranges from 30° to 90°.

[0055] In the above embodiment, the optimal inclination angle should be set to 90°, at which time the purlin 300 can fit tightly with the side surface of the bent portion 3 and have the best integrity.

[0056] In some embodiments, Figure 1 As shown, the inclination angle is 45°.

[0057] In the above embodiment, considering the difficulty of processing, the inclination angle is set to 45°, which reduces the difficulty of processing while ensuring the integrity of the purlin 300 spliced ​​by the purlin connector.

[0058] In some embodiments, Figure 1 As shown, the cross-section of the first connection part 1 and the cross-section of the second connection part 2 are both in an "M" shape; the outer side surface of the first connection part 1 is suitable for being fitted and fixed to the inner side surface 3002 of the "M"-shaped purlin 300; the inner side surface of the second connection part 2 is suitable for being fitted and fixed to the outer side surface 3003 of the "M"-shaped purlin 300.

[0059] According to an embodiment of the present invention, on the other hand, a purlin connection structure is provided, including two purlins 300 and the purlin connector of the above embodiment, wherein the purlin connector is connected between the two purlins 300 .

[0060] In the above embodiment, the purlin connector is used to ensure that the two purlins 300 can fit tightly without any gap, and the stable connection improves the connection stability of the purlin connection structure, thereby improving the installation stability of the photovoltaic panel fixing device.

[0061] In some embodiments, Figure 1 As shown, the cross-sections of the two purlins 300 are both "M"-shaped and are arranged to be tilted downward along the same straight line. The upper purlin 300 is connected to the top of the purlin connector, and the lower purlin 300 is connected to the bottom of the purlin connector.

[0062] In the above embodiment, the groove structure in the middle of the "M"-shaped purlin 300 is used to guide water, and the purlin connectors arranged in a corresponding contour are used to enable drainage after the purlin connectors are connected to the purlin 300; at the same time, the purlin 300, the purlin connectors and another purlin 300 on the same straight line are tilted downward and stacked in sequence from below, so that rainwater can flow down from the purlin 300 to the purlin connectors to the other purlin 300 in sequence, thereby improving the waterproof effect.

[0063] Specifically, the overall "M"-shaped purlin connector is spliced ​​with the "M"-shaped purlin 300, and the "M"-shaped purlin 300 is used to improve the structural strength, so as to form an "M"-shaped purlin connection structure that is both waterproof and able to bear force.

[0064] Furthermore, in the purlin connection structure, the purlin 300, the purlin connector and another purlin 300 are arranged in a straight line, and the inclination angle ranges from 2° to 10°, and the inclination angle is preferably 5°.

[0065] According to an embodiment of the present utility model, on another aspect, a photovoltaic panel fixing device is provided, comprising the purlin connection structure of the above embodiment.

[0066] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A purlin connector, suitable for connecting two purlins (300), wherein the purlin (300) has at least two bending positions (3001) in the same direction, characterized in that: The purlin connector comprises: A first connecting portion (1), the outer side surface of which is arranged in a contour with the inner profile surface (3002) of the purlin (300); A second connecting portion (2), the inner side surface of which is arranged in a contour with the outer profile surface (3003) of the purlin (300); When the purlin connector connects two purlins (300), the outer side surface of the first connecting portion (1) is suitable for being fitted with and fixed to the inner profile (3002) of one of the purlins (300), and the inner side surface of the second connecting portion (2) is suitable for being fitted with and fixed to the outer profile (3003) of the other of the purlins (300).

2. The purlin connector according to claim 1, characterized in that: A bending portion (3) is formed between the first connecting portion (1) and the second connecting portion (2), so that the second connecting portion (2) is arranged to protrude outward from the first connecting portion (1).

3. The purlin connector according to claim 2, characterized in that: The first connecting portion (1) has two first connecting plates (101) arranged opposite to each other, and the first connecting plate (101) is connected to one of the purlins (300); The second connecting portion (2) has two second connecting plates (201) arranged opposite to each other, and the second connecting plate (201) is connected to another one of the purlins (300).

4. The purlin connector according to claim 3, characterized in that: The first connecting plate (101) is provided with a plurality of first through holes (1011), and bolts are passed through the first through holes (1011) and the mounting holes of one of the purlins (300) for fastening and connection; The second connecting plate (201) is provided with a plurality of second through holes (2011), and bolts are passed through the second through holes (2011) and the mounting holes of another one of the purlins (300) for fastening and connection.

5. The purlin connector according to claim 2, characterized in that: The bending portion (3) is arranged to be inclined, and the inclination angle ranges from 30° to 90°.

6. The purlin connector according to claim 5, characterized in that: The inclination angle is 45°.

7. The purlin connector according to any one of claims 1 to 6, characterized in that: The cross-section of the first connecting portion (1) and the cross-section of the second connecting portion (2) are both in an "M" shape; The outer side surface of the first connecting portion (1) is suitable for being attached to and fixed to the inner side profile (3002) of the "M"-shaped purlin (300); The inner side surface of the second connecting portion (2) is suitable for being attached to and fixed to the outer profile (3003) of the "M"-shaped purlin (300).

8. A purlin connection structure, characterized in that: It comprises two purlins (300) and the purlin connector according to any one of claims 1 to 7, wherein the purlin connector is connected between the two purlins (300).

9. The purlin connection structure according to claim 8, characterized in that: The cross sections of the two purlins (300) are both "M"-shaped and are arranged to be inclined downward along the same straight line. The upper purlin (300) is connected to the top of the purlin connecting piece, and the lower purlin (300) is connected to the bottom of the purlin connecting piece.

10. A photovoltaic panel fixing device, characterized in that: It comprises the purlin connection structure as claimed in claim 8 or 9.

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