Connecting assembly of multiple sections of rails

Abstract

The utility model provides a multi-section track connecting assembly, and relates to the technical field of photovoltaic equipment, the multi-section track connecting assembly comprises a plug connector and a clamping connector, the plug connector is provided with a first guide rail and a second guide rail along the length direction, the first guide rail is used for plugging two sections of tracks, and the two sections of tracks are in butt joint end to end; the clamping piece is in a long strip shape, connecting parts are arranged at the four corners of the clamping piece, and the four connecting parts are arranged on the second guide rail in a sliding mode. The second guide rail is provided with at least two limiting parts, and the limiting parts abut against the connecting parts, so that the clamping piece is fixed to the second guide rail. The clamping piece is fixedly provided with at least one anti-retreating plate for each section of track, the free end of the anti-retreating plate obliquely extends towards the insertion direction of the corresponding track, and the free end abuts against the track in an interference mode. According to the utility model, through the above structure, rapid installation, anti-falling locking and comprehensive improvement of electrical safety of the multi-section track are realized, and the multi-section track is suitable for high-efficiency construction and long-term stable operation of a large-scale photovoltaic support system.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic equipment technical field especially, relates to a connecting assembly of multi -section track. BACKGROUND

[0002] In photovoltaic support system, aluminum alloy track is widely used because of its lightweight, corrosion resistance and other advantages. The traditional track connection mode mainly relies on fasteners such as bolts, self-tapping screws or block locking structure, and needs to install fasteners in steps, which is complicated and low in installation efficiency. Although there are attempts to simplify installation through buckle structure, there are still problems such as weak anti-backout ability and inability to compensate installation error. For example, some connecting pieces rely on rigid clamping, which is difficult to adapt to track tolerance. Some other schemes lack self-locking function and need additional anti-dropping device. Therefore, there is an urgent need for a multi-section track connecting assembly with quick installation, self-locking and high adaptability. SUMMARY

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a connecting assembly of multi-section track, which adopts the following technical scheme:

[0004] A connecting assembly of multi-section track comprises

[0005] A plug-in piece is provided with a first guide rail and a second guide rail along the length direction, the first guide rail is used for plugging two sections of track to butt joint the two sections of track at the head and tail;

[0006] A clamping piece is in the shape of a long strip, and is provided with a connecting part at each of the four corners, the four connecting parts are slidably arranged on the second guide rail; the second guide rail is provided with at least two limiting parts, and the limiting parts and the connecting parts are in abutment with each other through the limiting parts and the connecting parts, so that the clamping piece is fixed on the second guide rail;

[0007] At least one anti-backout plate is fixed on each section of track, the free end of the anti-backout plate is inclined and extends along the insertion direction of the corresponding track, and the free end is in interference abutment with the track.

[0008] Further improvement, the limiting part is formed by punching inwardly from the second guide rail.

[0009] Further improvement, the number of limiting parts is four, and each of the four limiting parts corresponds to one of the four connecting parts.

[0010] Further improvement, the limiting part is in abutment with the inner side end or the outer side end of the corresponding connecting part.

[0011] Further improvement, the connecting part is formed by outwardly folding the edge plate at the four corners of the clamping piece, comprising

[0012] An arc-shaped bending section is used for abutting against the limiting part.

[0013] The embedded segment extends from the curved bending segment and is embedded in the sliding groove of the second guide rail.

[0014] Further improved, the anti-back plate is isosceles trapezoidal, and the free end is the narrow end.

[0015] Further improved, the free end is provided with a plurality of teeth.

[0016] Further improved, the middle part of the clamping piece is provided with a positioning plate, and the adjacent two tracks are inserted and abutted against the positioning plate.

[0017] Further improved, the plug-in piece is embedded between the adjacent two tracks, and the outer contour of the plug-in piece is the first guide rail.

[0018] Further improved, the materials of the track and the plug-in piece are aluminum alloy, and the material of the clamping piece is sheet metal.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model discloses a plug-in piece is inserted in the second guide rail of the clamping piece, and the clamping piece is connected with the adjacent two guide rails through the first guide rail, which realizes the quick plug-in and self-locking of the multiple tracks, greatly simplifies the installation steps and improves the connection efficiency, and is especially suitable for the modular construction demand of large-scale photovoltaic support.

[0021] Specifically, the free end of the anti-back plate provided on the clamping piece is inclined to the track insertion direction, and the anti-back plate is in interference abutment when the track is inserted, which effectively prevents the track from being accidentally pulled out in the vibration or wind load environment, and enhances the connection stability. The anti-back plate is provided with teeth, which can be clamped in the inner wall of the track, and the isosceles trapezoidal outer contour can further enhance the stability of the structure. After the clamping piece is slid in the embedded segment of the connecting part to the appropriate position of the second guide rail, the limiting part of the second guide rail is formed by stamping, and the clamping piece is fixed together with the curved bending segment, which can adapt to different track tolerances, is quick to install, is convenient to adjust, and comprehensively improves the reliability and economic benefit of the photovoltaic support system. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope. For ordinary skilled in the art, other related drawings can also be obtained according to these drawings without creating creative labor.

[0023] Figure 1 It is the overall structure schematic diagram of the utility model;

[0024] Figure 2 Figure 2 is an assembly view of the plug-in part and the clamping part of the utility model;

[0025] Figure 3 Figure 3 is an assembly view of the utility model and the track of one embodiment;

[0026] Figure 4 Figure 4 is a side structure schematic view of the utility model of one embodiment; Figure 3

[0027] Figure 5 is an assembly view of the utility model and the track of another embodiment; Figure 5

[0028] Figure 6 is a side structure schematic view of the utility model of another embodiment. Figure 6 Figure 5 Figure 7 is a side structure schematic view of the utility model of another embodiment.

[0029] Reference signs:

[0030] 1-plug-in part; 2-clamping part;

[0031] 11-first guide rail; 12-second guide rail; 121-limiting part;

[0032] 21-retreat prevention plate; 211-tooth; 22-connection part; 22a-arc-shaped bending section; 22b-embedded section; 23-positioning plate;

[0033] 300-track. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of those skilled in the art, the structure of the utility model will be further described in combination with the drawings:

[0035] In the description of the utility model, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. The directions or position relationships indicated by the terms "part", "side", "end" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0036] As shown in Figures 1-6 , the application provides a connecting assembly of multi-section tracks, which comprises a plug-in part 1 and a clamping part 2. Specifically, referring to Figure 3 and Figure 5 , the plug-in part 1 is provided with a first guide rail 11 and a second guide rail 12 along the length direction, the first guide rail 11 is used for plugging in two adjacent sections of tracks 300, so that the two sections of tracks 300 are butt-jointed.

[0037] ​On the other hand, the clamping piece 2 is in a long strip shape, and the four corners thereof are provided with connecting portions 22, and the four connecting portions 22 are slidably arranged on the second guide rail 12; the second guide rail 12 is provided with at least two limiting portions 121, and the connecting portions 22 and the limiting portions 121 abut against each other, so that the clamping piece 2 is fixed on the second guide rail 12.

[0038] In a specific embodiment, as shown in Figures 2-6 , the plug-in piece 1 is provided with two first guide rails 11 on one side of the track 300, which are arranged at the upper and lower ends of the side, respectively, and two second guide rails 12 are arranged between the two first guide rails 11, that is, the clamping piece 2 is installed between the two first guide rails 11, and the cross-sectional shape of the first guide rail 11 is matched with the shape of the connecting portion 22 of the track 300, which can be C-shaped, rectangular, dovetail groove or other special-shaped structure, to ensure the guidance and stability when the track 300 is inserted. The second guide rail 12 is formed by bending inward from the two sides of the U-shaped groove.

[0039] Referring to Figure 2 , when installed, the clamping piece 2 is inserted into the second guide rail 12 from one side of the plug-in piece 1. Referring to Figure 3 and Figure 5 , the two tracks 300 to be connected are inserted along the first guide rail 11 from the two sides of the plug-in piece 1.

[0040] As shown in Figure 1 , when the clamping piece 2 is inserted into the second guide rail 12 from one side of the plug-in piece 1 to the appropriate position, the second guide rail 12 is formed by stamping the limiting portion 121 described above to fix the clamping piece 2, and the position of stamping can be on the inside, outside or both inside and outside of the connecting portion 22. It should be noted that it is not possible to stamp on one side inside and the other side outside.

[0041] As a preferred, the number of limiting portions 121 is four, and each corresponds to one of the four connecting portions 22, and the limiting portion 121 abuts against the inside end or the outside end of the corresponding connecting portion 22. As shown in Figure 1 , the second track 300 is formed with the limiting portion 121 described above inside the connecting portion 22 of the four corners of the clamping piece 2, and the stamping forming process of the limiting portion 121 has low cost and high precision, and the four limiting points form symmetrical constraints to prevent the clamping piece 2 from shifting or loosening.

[0042] Further, as shown in Figure 1 and Figure 4 , the connecting portion 22 is formed by outwardly folding the edge plate at the four corners of the clamping piece 2, which specifically includes an arc-shaped bending segment 22a and an embedded segment 22b, the arc-shaped bending segment 22a is on the inside, used for abutting against the limiting portion 121; the embedded segment 22b extends outwardly from the arc-shaped bending segment 22a and is embedded inside the sliding groove of the second guide rail 12, so that the clamping piece 2 can be slidably connected in the second guide rail 12.

[0043] Further, as shown in Figure 2 The clamping piece 2 is provided with at least one anti-withdrawal plate 21 for each track 300, the free end of the anti-withdrawal plate 21 extends obliquely along the insertion direction of the corresponding track 300, and the free end is in interference abutment with the track 300 when the track 300 is inserted. The anti-withdrawal plate 21 is isosceles trapezoidal, the free end is the narrow end, and a plurality of teeth 211 are arranged on the free end. When the track 300 has a tendency to come out, the teeth 211 on the anti-withdrawal plate 21 can be embedded in the inner wall of the track 300, achieving better anti-withdrawal effect. The isosceles trapezoidal structure can also enhance the structural strength of the anti-withdrawal plate 21, further improving the stability.

[0044] In a specific embodiment, the angle between the anti-withdrawal plate 21 and the insertion direction of the track 300 is 15°-75°, and the tooth tip angle of the tooth 211 is 45°-75°. As a preferred, the angle between the anti-withdrawal plate 21 and the insertion direction of the track 300 is 45°, and the tooth tip angle of the tooth 211 is 60°.

[0045] As shown in Figure 1 The middle part of the clamping piece 2 is provided with a positioning plate 23, and the adjacent two tracks 300 are inserted and abutted against the positioning plate 23. Since the clamping piece 2 is provided with two-direction anti-withdrawal plates in the technical solution, the positioning plate 23 can prevent the transitional insertion of the track 300 from occupying the anti-withdrawal plate on the other side of the track 300, and the positioning plate 23 can be used as a reference for centering during installation, facilitating installation and improving installation efficiency.

[0046] In another embodiment, the insertion piece 1 is embedded between the adjacent two tracks 300, and the outer contour of the insertion piece 1 is the first guide rail 11. As shown in Figure 5 and Figure 6 The outer contour of the insertion piece 1 matches the inner contour of the track 300, and the insertion piece 1 is embedded inside the two tracks 300 as a whole. The clamping piece 2 is connected to the side wall of the insertion piece 1, and the anti-withdrawal plate 21 is arranged outward with the free end in interference abutment with the inner wall of the track 300.

[0047] As a preferred, the material of the track 300 and the insertion piece 1 in each of the above embodiments is aluminum alloy, and the material of the clamping piece 2 is sheet metal. The track 300 and the insertion piece 1 made of aluminum alloy have the advantages of lightweight, high strength, corrosion resistance, etc., and can meet the long-term stable operation requirements of the photovoltaic system in complex environments. The clamping piece 2 made of sheet metal not only has a lower cost, but also has good mechanical strength.

[0048] On the other hand, the surface of the track 300 made of aluminum alloy is easy to form an insulating oxide layer, which is easy to accumulate static electricity and attract dust, and may also cause partial discharge. The teeth 211 of the clamping piece 2 can pierce the oxide layer on the surface of the track 300 made of aluminum alloy, destroy its insulation, and release the static electricity on the surface of the track 300.

[0049] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. The present application can be changed and modified in various ways by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A connecting assembly for a multi-piece track, characterized in that Comprising The plug-in part (1) is provided with a first guide rail (11) and a second guide rail (12) in the length direction, the first guide rail (11) is used for plugging two sections of tracks (300), and the two sections of tracks (300) are butt-jointed head to tail; The clamping part (2) is in a strip shape, and four connecting parts (22) are arranged at four corners of the clamping part (2), the four connecting parts (22) are slidably arranged on the second guide rail (12); the second guide rail (12) is provided with at least two limiting parts (121), and the limiting parts (121) and the connecting parts (22) are in abutment with each other, so that the clamping part (2) is fixed on the second guide rail (12); The clamping part (2) is provided with at least one anti-back plate (21) for each section of track (300), the free end of the anti-back plate (21) is inclined and extends along the insertion direction of the corresponding track (300), and the free end is in abutment with the track (300) in an interference manner.

2. A multiple rail joint assembly as claimed in claim 1, wherein, The limiting part (121) is formed by inward stamping of the second guide rail (12).

3. A multiple rail joint assembly as claimed in claim 1 or 2, wherein, The number of the limiting parts (121) is four, and the limiting parts (121) correspond to the four connecting parts (22) one by one.

4. A multiple rail joint assembly as claimed in claim 3, wherein, The limiting part (121) is in abutment with the inner side end or the outer side end of the corresponding connecting part (22).

5. A multiple rail connection assembly as claimed in claim 4, wherein, The connecting part (22) is formed by outwardly folding the edge plate at the four corners of the clamping part (2), comprising An arc-shaped bending section (22a) is used for abutting against the limiting part (121); An embedded section (22b) extends from the arc-shaped bending section (22a) and is embedded in the sliding groove of the second guide rail (12).

6. A multiple rail connection assembly as claimed in claim 1, wherein, The anti-back plate (21) is in an isosceles trapezoidal shape, and the free end is a narrow end.

7. A multiple rail joint assembly as claimed in claim 1 or 5 wherein, The free end is provided with a plurality of teeth (211).

8. A multiple-rail connection assembly as claimed in claim 1 or 2, wherein, The middle part of the clamping part (2) is provided with a positioning plate (23), and adjacent two tracks (300) are inserted and abutted against the positioning plate (23).

9. A multiple rail connection assembly as claimed in claim 1, wherein, The plug-in part (1) is embedded between the adjacent two tracks (300), and the outer contour of the plug-in part (1) is the first guide rail.

10. A multiple-rail connection assembly as claimed in claim 1 or 2, wherein, The materials of the track (300) and the plug-in part (1) are both aluminum alloy, and the material of the clamping part (2) is sheet metal.

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