Photovoltaic bolt with double threads

Abstract

The utility model relates to the technical field of fixing devices of photovoltaic modules, and discloses a photovoltaic bolt with double-end threads, which comprises a bolt body, a forward-screwing nut is arranged in the middle of the outer end of the bolt body, a tightening nut is arranged on the front side of the forward-screwing nut, a water stop ring is arranged at the front end of the tightening nut, and a water stop ring is arranged at the rear end of the tightening nut. A single-opening sleeve is arranged on the inner side of the front end of the water stop ring, and a double-opening sleeve is arranged in the middle of the forward screwing nut and the tightening nut. According to the utility model, the screwing head is rotated to enable the front end of the bolt body to enter the photovoltaic panel along the front thread, then the tightening nut pushes the water stop ring to be attached to the photovoltaic panel for sealing, then the bolt body penetrates through the mounting bracket and the L-shaped plate through the rear thread, and the bolt body is fixed by the rear-screwing nut and the front-screwing nut; and subsequently, the position of the clamping plate is controlled through a connecting pin and an adjusting groove, and a T-shaped structure at the front end of the clamping plate abuts against a cross rod on the inner side of the mounting bracket, so that the connecting strength between the photovoltaic panel and the mounting bracket is improved, and the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of photovoltaic module's fixing device, specifically is a photovoltaic bolt with double -end thread. BACKGROUND

[0002] The photovoltaic bolt is mainly used for the installation of photovoltaic solar support, and firmly connects components such as photovoltaic module and support together, to ensure the stability and safety of the photovoltaic system.

[0003] At present, the existing conventional photovoltaic bolt usually only has one thread head and needs to be used with a nut. This single-thread head bolt has the following problems in the installation process: when reinforcing, the front end of the bolt needs to be sequentially threaded through the mounting holes of the photovoltaic panel and the mounting support, and then a nut is screwed on the front end of the bolt to tighten and reinforce. This single-nut tightening and reinforcing method is not reliable enough, and the photovoltaic panel and the mounting support are prone to looseness, which will lead to a decrease in the connection strength between the photovoltaic panel and the mounting support and pose a certain safety hazard. Secondly, the bolt lacks protective components and is easily eroded when exposed to the outside for a long time, which makes it difficult to disassemble when maintenance and replacement are needed, and is inconvenient. Therefore, a photovoltaic bolt with double threads is needed to solve the above problems. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the utility model provides a photovoltaic bolt with double threads, which solves the problem of the insufficient reliability of the reinforcing method of the existing single-thread head bolt and nut, the looseness, the lack of connecting components when integrating multiple photovoltaic panels and mounting supports, and the erosion of the bolt when exposed for a long time, thereby improving the difficulty of maintenance and disassembly.

[0006] (II) Technical solutions

[0007] To achieve the above purposes, the utility model realizes the following technical solutions: a photovoltaic bolt with double threads, comprising a bolt body, a front threaded nut is arranged at the middle part of the outer end of the bolt body, a tightening nut is arranged at the front side of the front threaded nut, a water stop ring is arranged at the front end of the tightening nut, a single-opening sleeve is arranged at the inner side of the front end of the water stop ring, double-opening sleeves are arranged at the middle part of the front threaded nut and the tightening nut, a rear threaded nut is arranged at the rear side of the outer end of the bolt body, an L-shaped plate is arranged at the front side of the rear threaded nut, a limiting assembly is arranged at the rear end of the L-shaped plate, a connecting pin is arranged at the rear side of the upper end of the limiting assembly, a clamping plate is arranged at the lower end of the connecting pin, and a reinforcing screw is arranged below the front end of the L-shaped plate.

[0008] Optionally, the bolt body comprises a bolt body, a rear thread, a front thread and a rotating head, the rear end of the bolt body is provided with the rear thread, the front end of the bolt body is provided with the front thread, and the tail end of the bolt body is provided with the rotating head.

[0009] Optionally, the single-opening sleeve comprises a bellows, a sealing ring and a conical shell, the rear end of the bellows is provided with the sealing ring, and the front end of the bellows is provided with the conical shell.

[0010] Optionally, the limiting assembly comprises a limiting plate, a prismatic groove and an adjusting groove, the upper and lower sides of the outer end of the limiting plate are provided with the prismatic grooves, and the middle part of the upper end of the limiting plate is provided with the adjusting groove.

[0011] Optionally, the front rotating nut and the rear rotating nut are symmetrically distributed, the contact surfaces of the front rotating nut and the rear rotating nut are provided with sealing gaskets, the front end of the tightening nut and the rear end of the water stop ring are mutually attached, the inner side of the front end of the water stop ring is provided with an embedded groove, and the inner diameter of the embedded groove is matched with the outer diameter of the rear end of the single-opening sleeve.

[0012] Optionally, two through holes are formed in the inner side of the lower end of the L-shaped plate and the inner side of the front end of the limiting assembly, the contact end of the connecting pin and the limiting assembly is provided with a square pad, the overall shape of the clamping plate is a T-shaped plate, and the T-shaped plate is rotatable.

[0013] Optionally, the bolt body and the rotating head are in an integrated structure, the opening density of the rear thread is half of the opening density of the front thread, and the inner side of the rear end of the rotating head is provided with a hexagonal notch.

[0014] Optionally, the bellows, the sealing ring and the conical shell are mutually glued and reinforced, the bellows and the sealing ring are made of rubber, and the conical shell is made of metal.

[0015] In conclusion, the technical effects and advantages of the utility model are as follows:

[0016] 1. The utility model discloses a reasonable structure, through the bolt body setting, when needing reinforcing photovoltaic module, the bolt body is placed between two areas, the front end of the bolt body is entered photovoltaic panel along the front thread through rotating the rotating head, after the water stop ring is attached the opening end of photovoltaic panel and is sealed through the tightening nut, simultaneously, the rear thread is entered the inside through the mounting hole of the mounting support, and the L-shaped plate is installed at the rear end of the bolt body, and the rear rotating nut is fixed by the front rotating nut, and the position of the clamping plate is controlled through the connecting pin and the adjusting groove, the T-shaped structure of the front end of the clamping plate is attached to the inside cross bar of the mounting support, the connection strength between photovoltaic panel and mounting support is increased, and the safety in use is improved.

[0017] 2、The utility model discloses a single opening sleeve is set, after the front end of the bolt body passes through the lower end outer wall of photovoltaic board, using reinforcing nut, then the front thread of corrugated pipe and bolt body front end is screwed on and the front end of bolt body is wrapped, simultaneously, when front screw nut and tightening nut displace to both sides, the double opening sleeve that is extruded and folded together will extend forward and backward under the action of self elasticity and mutually adhere to the front screw nut and tightening nut that are tightened, and the middle position of bolt body is wrapped, through the effect of single opening sleeve and double opening sleeve, the protective component is formed on the outside of bolt body, when long -term use, rainwater is not easy to be eroded, improves the life, and subsequent maintenance work is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the three-dimensional structure schematic diagram of bolt body of the utility model;

[0020] Figure 3 It is the three-dimensional structure schematic diagram of front screw nut, tightening nut, water stop ring and single opening sleeve of the utility model;

[0021] Figure 4 It is the three-dimensional structure schematic diagram of L type board, limiting assembly, connecting pin, clamping plate and reinforcing screw.

[0022] In the drawing: 1, bolt body;2, front screw nut;3, tightening nut;4, water stop ring;5, single opening sleeve;6, double opening sleeve;7, rear screw nut;8, L type board;9, limiting assembly;10, connecting pin;11, clamping plate;12, reinforcing screw;101, bolt body;102, rear thread;103, front thread;104, screw head;501, corrugated pipe;502, sealing ring;503, conical shell;901, limiting plate;902, prismatic groove;903, adjusting groove. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Embodiment: reference Figures 1-4The photovoltaic bolt with double-thread shown in the figure comprises a bolt body 1, a front nut 2 arranged at the middle of the outer end of the bolt body 1, the front nut 2 and a rear nut 7 are symmetrically distributed, and the contact surfaces of the front nut 2 and the rear nut 7 are both provided with sealing gaskets, the front side of the front nut 2 is provided with a tightening nut 3, the front end of the tightening nut 3 and the rear end of a water stop ring 4 are mutually attached, the front end of the tightening nut 3 is provided with the water stop ring 4, the inner side of the front end of the water stop ring 4 is provided with an embedded groove, and the inner diameter of the embedded groove is adapted to the outer diameter of the rear end of a single-opening sleeve 5, the inner side of the front end of the water stop ring 4 is provided with the single-opening sleeve 5, the middle parts of the front nut 2 and the tightening nut 3 are provided with a double-opening sleeve 6, the rear side of the outer end of the bolt body 1 is provided with the rear nut 7, the front side of the rear nut 7 is provided with an L-shaped plate 8, the inner sides of the lower ends of the L-shaped plate 8 and the front end of a limiting assembly 9 are both provided with two through holes, the rear end of the L-shaped plate 8 is provided with the limiting assembly 9, the rear side of the upper end of the limiting assembly 9 is provided with a connecting pin 10, the contact end of the connecting pin 10 and the limiting assembly 9 is provided with a square pad plate, so as to increase the stability during use, the lower end of the connecting pin 10 is provided with a clamping plate 11, the overall shape of the clamping plate 11 is a T-shaped plate, and the T-shaped plate is rotatable, the lower side of the front end of the L-shaped plate 8 is provided with a reinforcing screw 12, the reinforcing screw 12 is used for combining and reinforcing the clamping plate 11 and the L-shaped plate 8, so that the two form an integrated structure.

[0025] As an optional implementation in the embodiment, as shown in Figure 1 、 Figure 2 and Figure 4 , the bolt body 1 comprises a bolt body 101, a rear thread 102, a front thread 103 and a driving head 104, the bolt body 101 and the driving head 104 are in an integrated structure, the rear end of the bolt body 101 is provided with the rear thread 102, the front end of the bolt body 101 is provided with the front thread 103, wherein the opening density of the rear thread 102 is half of the opening density of the front thread 103, the tail end of the bolt body 101 is provided with the driving head 104, the inner side of the rear end of the driving head 104 is provided with a hexagonal groove; the limiting assembly 9 comprises a limiting plate 901, a prismatic groove 902 and an adjusting groove 903, the upper and lower sides of the outer end of the limiting plate 901 are provided with the prismatic grooves 902, and the middle part of the upper end of the limiting plate 901 is provided with the adjusting groove 903.

[0026] Through the bolt body 1 set, when the photovoltaic assembly needs to be reinforced, the bolt body 101 is placed in the area between the two, the front end of the bolt body 101 is screwed into the photovoltaic panel along the front thread 103 through the rotating screw head 104, then the water stop ring 4 is pushed to the opening end of the photovoltaic panel to seal after the tightening nut 3 is tightened, the rear thread 102 is inserted into the inside through the mounting hole of the mounting bracket, at the same time, the L-shaped plate 8 is installed at the rear end of the bolt body 101, the rear screw nut 7 is used after the front screw nut 2 is used to clamp and fix, the position of the clamping plate 11 is controlled through the connecting pin 10 and the adjusting groove 903, the T-shaped structure at the front end of the clamping plate 11 is resisted by the inside horizontal rod of the mounting bracket, the connection strength between the photovoltaic panel and the mounting bracket is increased, and the safety in use is improved.

[0027] As shown in Figure 1 and Figure 3 In this embodiment, the single opening sleeve 5 includes a corrugated pipe 501, a sealing ring 502 and a conical shell 503, the rear end of the corrugated pipe 501 is provided with the sealing ring 502, and the front end of the corrugated pipe 501 is provided with the conical shell 503, wherein the corrugated pipe 501, the sealing ring 502 and the conical shell 503 are mutually glued and reinforced, and the corrugated pipe 501 and the sealing ring 502 are both made of rubber, and the conical shell 503 is made of metal.

[0028] Through the single opening sleeve 5 set, after the front end of the bolt body 101 passes through the lower end of the photovoltaic panel, the reinforcing nut is used, then the front thread 103 of the corrugated pipe 501 and the front end of the bolt body 101 is screwed to wrap the front end of the bolt body 101, at the same time, when the front screw nut 2 and the tightening nut 3 are displaced to both sides, the double opening sleeve 6 folded together is extended forward and backward under the action of its own elasticity, and is mutually fitted with the front screw nut 2 and the tightening nut 3, so as to wrap the middle position of the bolt body 101, through the action of the single opening sleeve 5 and the double opening sleeve 6, a protective member is formed outside the bolt body 101, which is not easy to be eroded by rainwater during long-term use, improves the service life, and is convenient for subsequent maintenance work.

[0029] The utility model discloses a photovoltaic bolt with double-end thread, which comprises a bolt body 101, a front thread 103, a rear thread 102, a rotating screwing head 104, a rear screwing nut 3, a water stop ring 4, a single-opening sleeve 5, a double-opening sleeve 6, a L-shaped plate 8, a T-shaped structure, a connecting pin 10, an adjusting groove 903, a clamping plate 11, a front screwing nut 2 and a rear screwing nut 7.

[0030] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiments of the utility model and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A photovoltaic bolt with double-ended threads, comprising a bolt body (1), characterized in that: The bolt body (1) has a front-turn nut (2) at the middle of its outer end. The front of the front-turn nut (2) has a tightening nut (3). The front end of the tightening nut (3) has a water-stop ring (4). The inner side of the front end of the water-stop ring (4) has a single-opening sleeve (5). The middle of the front-turn nut (2) and the tightening nut (3) has a double-opening sleeve (6). The rear side of the bolt body (1) has a rear-turn nut (7). The front side of the rear-turn nut (7) has an L-shaped plate (8). The rear end of the L-shaped plate (8) has a limiting component (9). The rear side of the upper end of the limiting component (9) has a connecting pin (10). The lower end of the connecting pin (10) has a clamping plate (11). The lower part of the front end of the L-shaped plate (8) has a reinforcing screw (12).

2. A photovoltaic bolt with double-ended threads according to claim 1, characterized in that: The bolt body (1) includes a bolt body (101), a rear thread (102), a front thread (103), and a screwing head (104). The rear end of the bolt body (101) is provided with a rear thread (102), the front end of the bolt body (101) is provided with a front thread (103), and the tail end of the bolt body (101) is provided with a screwing head (104).

3. A photovoltaic bolt with double-ended threads according to claim 1, characterized in that: The single-opening sleeve (5) includes a bellows (501), a sealing ring (502) and a conical shell (503). The bellows (501) has a sealing ring (502) at its rear end and a conical shell (503) at its front end.

4. A photovoltaic bolt with double-ended threads according to claim 1, characterized in that: The limiting component (9) includes a limiting plate (901), a prismatic groove (902) and an adjusting groove (903). The upper and lower sides of the outer end of the limiting plate (901) are provided with prismatic grooves (902), and the middle part of the upper end of the limiting plate (901) is provided with an adjusting groove (903).

5. A photovoltaic bolt with double-ended threads according to claim 1, characterized in that: The front-turn nut (2) and the rear-turn nut (7) are symmetrically distributed, and the contact surfaces of the front-turn nut (2) and the rear-turn nut (7) are provided with sealing gaskets. The front end of the tightening nut (3) and the rear end of the water-stop ring (4) are fitted together. The inner side of the front end of the water-stop ring (4) is provided with an embedded groove, and the inner diameter of the embedded groove is compatible with the outer diameter of the rear end of the single-opening sleeve (5).

6. A photovoltaic bolt with double-ended threads according to claim 1, characterized in that: Two through holes are provided on the inner side of the lower end of the L-shaped plate (8) and the inner side of the front end of the limiting component (9). A square pad is provided at the contact end of the connecting pin (10) and the limiting component (9). The overall shape of the clamping plate (11) is a T-shaped plate, and the T-shaped plate can be rotated.

7. A photovoltaic bolt with double-ended threads according to claim 2, characterized in that: The bolt body (101) and the screwing head (104) are integrated into one piece. The opening density of the rear thread (102) is half that of the front thread (103). A hexagonal groove is provided on the inner side of the rear end of the screwing head (104).

8. A photovoltaic bolt with double-ended threads according to claim 3, characterized in that: The bellows (501), sealing ring (502) and conical shell (503) are bonded together for reinforcement. The bellows (501) and sealing ring (502) are both made of rubber, and the conical shell (503) is made of metal.

Images