Hoop type universal photovoltaic lighting device

Abstract

The utility model discloses a hoop type universal photovoltaic lighting device which comprises a photovoltaic lighting assembly which comprises a fixing frame, a photovoltaic unit and a lighting unit. The hoop assembly comprises at least two hoop plates and fastening units, the hoop plates are detachably connected end to end in sequence through the fastening units to form a hoop opening locked on the cylindrical body, each fastening unit comprises a bolt and a nut, the bolt is provided with a cap part, a polished rod part and a threaded part which are connected in sequence, and the polished rod part and the threaded part are connected in sequence. The circumferential outer edge of the polished rod part is in sealed connection with the circumferential inner wall of the nut, and the end, away from the bolt, of the nut is closed. According to the hoop type universal photovoltaic lighting device, the nut is in sealed connection with the polished rod part of the bolt, and the end, away from the bolt, of the nut is closed, so that the threaded part of the bolt is isolated from the outside, corrosion damage is prevented, and fastening connection between the hoop plates is guaranteed; therefore, a hoop opening formed by the hoop plate and the fastening unit can be firmly connected with the cylindrical body, looseness after long-term use is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic lighting, in particular to a clamp-type universal photovoltaic lighting device. Background Art

[0002] Solar street lights are an indispensable facility in urban and rural construction. They are powered by crystalline silicon solar cells, use ultra-bright LED lamps as light sources, and are controlled by intelligent charging and discharging controllers to replace traditional public electricity for lighting.

[0003] In the prior art, for example, the Chinese utility model patent with announcement number CN218409731U discloses a solar LED street light with high photoelectric conversion efficiency. By setting a power mechanism, the angle of the solar photovoltaic panel can be adjusted to improve the photoelectric conversion efficiency of the solar photovoltaic panel. In the above solar LED street light, the clamp is mainly fastened to the outside of the lamp pole by bolts, so as to fix the position of the street light. However, the fastening bolts are exposed to the outside and are easily affected by the outside and corroded, resulting in a decrease in the fastening strength of the fastening bolts, which are prone to loosening. In addition, the rust will cause stress concentration inside the fastening bolts, especially when subjected to dynamic loads, which are prone to breakage, thereby shortening the service life of the solar LED street light.

[0004] Therefore, it is necessary to improve the solar street lamp in the prior art. Utility Model Content

[0005] The utility model aims to overcome the defects in the prior art and provide a universal photovoltaic lighting device of a clamp type which can prevent rust and ensure the degree of fastening to prolong the service life.

[0006] In order to achieve the above technical effects, the technical solution of the utility model is: a universal photovoltaic lighting device with a clamping hoop, comprising:

[0007] A photovoltaic lighting assembly, the photovoltaic lighting assembly comprising a fixing frame, a photovoltaic unit arranged above the fixing frame with a light-receiving surface facing upward, and a lighting unit arranged below the fixing frame and illuminating downward;

[0008] A hoop assembly, the hoop assembly includes at least two hoop plates and a fastening unit arranged between adjacent hoop plates, one of the hoop plates is fixedly connected to the fixing frame, and the hoop plates are detachably connected end to end through the fastening unit to form a hoop mouth locked on the columnar body, the fastening unit includes a bolt and a nut, the bolt has a cap portion, a smooth rod portion and a threaded portion connected coaxially in sequence, the smooth rod portion is a circular shaft with an outer diameter greater than or equal to the outer diameter of the threaded portion and less than the outer diameter of the cap portion, the circumferential outer edge of the nut is provided with a convex ring, adjacent hoop plates are clamped between the nut and the convex ring, the circumferential outer edge of the smooth rod portion is sealed with a circumferential inner wall of the nut, and the nut is closed at one end away from the bolt.

[0009] Preferably, in order to achieve the encirclement of the threaded portion of the bolt by the nut to protect the threaded portion, the nut includes a sealing tube, a threaded tube and a cover connected coaxially, the axial inner wall of the threaded tube is threadedly connected to the circumferential outer edge of the threaded portion, the circumferential outer edge of the sealing tube is sealingly connected to the circumferential inner wall of the bare rod portion, and the convex ring is arranged on the circumferential outer edge of the sealing tube.

[0010] Preferably, in order to facilitate assembly, a convex column portion having an outer diameter consistent with the outer diameter of the sealing tube is coaxially connected between the cap portion and the bare rod portion, and through-hole-shaped positioning holes are provided at both ends of the hoop plate, and the inner diameter of the positioning through hole is consistent with the outer diameter of the positioning through hole.

[0011] Preferably, in order to enhance the fastening force, an elastic clamping plate is provided on the inner side of the clamping plate.

[0012] Preferably, in order to increase the roughness of the surface of the clamping plate and further enhance the fastening force, the side of the clamping plate facing away from the clamping hoop plate is densely covered with protrusions.

[0013] Preferably, in order to further enhance the tightening force, each clamping plate is provided with a tightening tube on the side facing away from the clamp mouth, an internal thread is provided on the axial inner wall of the tightening tube, the tightening tube is threadedly connected to a tightening screw via the internal thread, and the tightening screw abuts against the clamping plate.

[0014] Preferably, in order to surround the fastening screw to protect the fastening screw and prevent the fastening screw from rusting, the circumferential outer edge of the fastening tube includes a threaded section and a smooth section, the smooth section is a cylindrical surface and is located between the threaded section and the clamp plate, the threaded section is threadedly connected with a fastening screw, and the fastening screw and the clamp plate are combined to form an enclosing cavity that surrounds the threaded section and is isolated from the outside world.

[0015] Preferably, in order to ensure the sealing between the fastening screw and the clamping plate, the outer sleeve of the smooth section is provided with an elastic sealing ring, and the sealing ring is clamped between the fastening bolt and the clamping plate.

[0016] Preferably, in order to enhance the fastening force, at least two fastening units are provided between corresponding ends of adjacent hoop plates and are spaced apart along the width direction of the hoop plates.

[0017] Preferably, in order to facilitate assembly, two clamping plates are arranged opposite to each other.

[0018] To sum up, compared with the prior art, the utility model clamp-type universal photovoltaic lighting device is sealed by connecting the nut to the bare rod part of the bolt and closing the end of the nut away from the bolt, thereby isolating the threaded part of the bolt from the outside world to prevent rust and damage, thereby ensuring the tight connection between the clamp plates, so that the clamp mouth formed by the clamp plate and the fastening unit can be firmly connected to the columnar body, avoiding loosening after long-term use and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0021] Figure 3 It is a structural schematic diagram of the clamp assembly of the utility model;

[0022] Figure 4 yes Figure 3 Explosion diagram of

[0023] Figure 5 yes Figure 4 A magnified view of part A;

[0024] Figure 6 It is a schematic diagram of the connection structure between the fixing frame and the lighting unit of the utility model;

[0025] Figure 7 yes Figure 6 Explosion diagram of

[0026] Figure 8 It is a structural schematic diagram of the photovoltaic unit of the utility model;

[0027] Fig. 9 yes Figure 8 Explosion diagram of

[0028] In the figure: 1, fixing frame; 11, fixing plate; 12, cross bar; 13, cross plate; 14, protective cover; 15, processor; 16, battery; 2, photovoltaic unit; 21, photovoltaic panel; 22, photovoltaic frame; 221, rotating shaft; 222, bearing; 23, photosensitive element; 24, rotating unit; 241, motor; 242, reducer; 243, mounting frame; 3, lighting unit; 31, lampshade; 32, lighting lamp; 4, hoop plate; 41, clamp Plate; 411, protrusion; 42, positioning through hole; 43, fastening tube; 431, threaded section; 432, smooth section; 433, sealing ring; 44, fastening screw; 45, fastening screw tube; 46, fixing rod; 47, vertical plate; 5, bolt; 51, cap; 52, smooth rod; 53, threaded part; 54, convex column; 55, gasket; 6, nut; 61, convex ring; 62, sealing tube; 63, threaded tube; 64, cover; 7, columnar body. DETAILED DESCRIPTION

[0029] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0030] like Figure 1-Figure 9 As shown, the universal photovoltaic lighting device of the utility model includes:

[0031] The photovoltaic lighting assembly comprises a fixing frame 1, a photovoltaic unit 2 arranged above the fixing frame 1 and with the light-receiving surface facing upward, and a lighting unit 3 arranged below the fixing frame 1 and illuminating downward;

[0032] The hoop assembly includes at least two hoop plates 4 and a fastening unit arranged between adjacent hoop plates 4, wherein one hoop plate 4 is fixedly connected to the fixing frame 1, and the hoop plates 4 are detachably connected head to tail in sequence through the fastening unit to form a hoop mouth locked on the columnar body 7, and the fastening unit includes a bolt 5 and a nut 6, the bolt 5 has a cap portion 51, a bare rod portion 52 and a threaded portion 53 connected in sequence coaxially, the bare rod portion 52 is a circular shaft with an outer diameter greater than or equal to the outer diameter of the threaded portion 53 and less than the outer diameter of the cap portion 51, a convex ring 61 is arranged on the circumferential outer edge of the nut 6, adjacent hoop plates 4 are clamped between the nut 6 and the convex ring 61, the circumferential outer edge of the bare rod portion 52 is sealed with the circumferential inner wall of the nut 6, and the nut 6 is closed at one end away from the bolt 5.

[0033] It should be noted that the above-mentioned columnar body 7 includes but is not limited to vertically arranged columns such as lamp poles and trees.

[0034] The hoop plates 4 in the hoop assembly of the utility model are connected end to end in sequence through a fastening unit to form a hoop mouth, which is locked on the columnar body 7, and one of the hoop plates 4 is fixedly connected to the fixing frame 1, thereby completing the position fixation of the fixing frame 1.

[0035] Different from the prior art, in the fastening unit, the bolt 5 is formed by a cap portion 51, a bare rod portion 52 and a threaded portion 53 which are connected in sequence coaxially as a whole, the outer diameters of the cap portion 51, the bare rod portion 52 and the threaded portion 53 are reduced successively, and the nut 6 is closed at one end away from the cap portion 51. After the nut 6 is threadedly connected to the threaded portion 53, the circumferential inner wall of the nut 6 is sealed and connected to the circumferential outer edge of the bare rod portion 52, thereby heat-insulating and protecting the threaded portion 53, preventing the threaded portion 53 from being eroded and damaged by the outside world and rusting, thereby affecting the connection strength between the bolt 5 and the nut 6. In this way, by surrounding and protecting the threaded portion 53 and preventing the threaded portion 53 from rusting, the connection strength between the lower hoop plate 4 is guaranteed during long-term use of the device, thereby ensuring the locking connection force with the columnar body 7 and preventing loosening, thereby extending the service life of the photovoltaic lighting device.

[0036] The specific structure of the fixing frame 1 of the utility model is as follows Figure 6 and Figure 7 As shown, the fixing frame 1 includes a vertically arranged fixing plate 11, and a side of the fixing plate 11 away from the clamp assembly is integrally connected to a transverse plate 13 through a transverse rod 12, and the transverse rod 12 and the transverse plate 13 are both arranged horizontally, and the lighting unit 3 is arranged below the transverse plate 13, and a downward protective cover 14 is also arranged above the transverse plate 13, and the protective cover 14 and the transverse plate 13 are enclosed to form a protective cavity, and a processor 15 and a battery 16 fixed on the transverse plate 13 are arranged in the protective cavity; the lighting unit 3 includes a lampshade 31 fixed below the transverse plate 13, and a lighting lamp 32 is arranged below the transverse plate 13 and located on the inner side of the lampshade 31, and the lighting lamp 32 is an LED light strip; the photovoltaic unit 2 is electrically connected to the battery 16, the battery 16 is electrically connected to the lighting lamp 32, and the processor 15 is electrically connected to the lighting lamp 32.

[0037] After adopting the above structure, the fixing plate 11 is fixedly connected to one of the hoop plates 4 to achieve the position fixation of the fixing frame 1, and the protective cover 14 is fixed on the cross plate 13 to form an enclosure cavity surrounding the processor 15 and the battery 16 to protect the processor 15 and the battery 16; when there is sufficient light to enable the photovoltaic unit 2 to generate photovoltaic power, the processor 15 controls the lighting lamp 32 to turn off, and the photovoltaic unit 2 generates photovoltaic power and stores the electric energy in the battery 16, while at night, the light is insufficient and the photovoltaic unit 2 cannot generate photovoltaic power. At this time, the processor 15 controls the lighting lamp 32 to turn on, and the lighting lamp 32 is powered by the battery 16 to ensure night lighting. The lighting lamp 32 adopts an LED light strip, which can reduce power consumption and ensure lighting time; the lampshade 31 can be used to control the lighting range of the lighting lamp 32 to avoid excessive light diffusion and affect the lighting brightness.

[0038] The specific structure of the photovoltaic unit 2 is as follows Figure 8 and Fig. 9 As shown, the photovoltaic unit 2 includes a photovoltaic frame 22, a photovoltaic panel 21 with the light-receiving surface facing upward is fixedly arranged above the photovoltaic frame 22, a rotating shaft 221 is fixedly connected below, the axial direction of the rotating shaft 221 is parallel to the length direction of the crossbar 12, and the rotating shaft 221 is arranged above the protective cover 14 by rotating around its own axis through a bearing 222; a photosensitive sensor 23 is fixedly connected to one side of the photovoltaic panel 21; a rotating unit 24 is connected to the end of the rotating shaft 221 away from the photosensitive sensor 23, and the rotating unit 24 drives the photovoltaic panel 21 to rotate around the axis of the rotating shaft 221 through the rotating shaft 221. Specifically, the rotating unit 24 includes a motor 241, and the output shaft of the motor 241 is connected to the rotating shaft 221 through a reducer 242. The motor 241 and the reducer 242 are both fixed to the top of the protective cover 14 through a mounting frame 243. The motor 241 and the photosensitive sensor 23 are both electrically connected to the processor 15.

[0039] After adopting the above structure, the light sensor 23 is used to conveniently detect the intensity of external light, and the light data is transmitted to the processor 15. When the external light is strong enough to enable the photovoltaic panel 21 to generate electricity, the processor 15 controls the lighting lamp 32 to turn off. When the external light is dim, the processor 15 controls the lighting lamp 32 to turn on for lighting; the motor 241 is started, and acts on the shaft 221 through the reducer 242, which can drive the photovoltaic frame 22 to rotate, and then drive the photovoltaic panel 21 to rotate, adjust the angle of the light-receiving surface of the photovoltaic panel 21, so that it faces the sunlight source, and increase the photovoltaic power generation. The reducer 242 can accurately adjust the rotation angle of the rotating unit 24 to control the rotation angle of the shaft 221, thereby realizing accurate adjustment of the rotation angle of the photovoltaic panel 21 to increase the power generation.

[0040] In the present invention, two hoop plates 4 are arranged opposite to each other, and the two ends of the two hoop plates 4 are detachably fixedly connected by two sets of fastening units, respectively. The above structure reduces the number of hoop plates 4, and only fastening units need to be installed at the two ends of the hoop plates 4 to connect the two hoop plates 4 end to end in sequence to form a hoop mouth, so that the device can be quickly fastened and installed on the columnar body 7. One of the hoop plates 4 is fixedly connected to a vertical plate 47 with the same size as the fixed plate 11 through four fixing rods 46 distributed in a rectangular array, and the vertical plate 47 is fixedly connected to the fixed plate 11 by welding.

[0041] A further improvement is that at least two fastening units are provided between corresponding ends of adjacent hoop plates 4 and are spaced apart along the width direction of the hoop plates 4 .

[0042] In the utility model, two fastening units are provided at both ends of the clamping plate 4. By increasing the number of fastening units, the strength of the connection structure between the two clamping plates 4 is strengthened, thereby strengthening the locking connection force between the clamp mouth and the columnar body 7, preventing the photovoltaic lighting device from loosening after long-term use.

[0043] A further improvement is that the nut 6 includes a sealing tube 62, a threaded tube 63 and a sealing cover 64 which are coaxially connected, the axial inner wall of the threaded tube 63 is threadedly connected to the circumferential outer edge of the threaded portion 53, the circumferential outer edge of the sealing tube 62 is sealedly connected to the circumferential inner wall of the smooth rod portion 52, and a convex ring 61 is arranged on the circumferential outer edge of the sealing tube 62; a convex column portion 54 whose outer diameter is consistent with the outer diameter of the sealing tube 62 is also coaxially connected between the cap portion 51 and the smooth rod portion 52, and through-hole-shaped positioning through holes 42 are provided at both ends of the hoop plate 4, and the inner diameter of the positioning through hole 42 is consistent with the outer diameter of the positioning through hole 42.

[0044] Specifically, Figure 3-Figure 5 As shown, positioning holes 42 are provided at the four corners of the hoop plate 4. The positioning holes 42 are circular holes. The bolt 5 includes a cap portion 51, a convex column portion 54, a smooth rod portion 52 and a threaded portion 53 which are integrally connected coaxially and whose outer diameters decrease successively. Correspondingly, the nut 6 includes a sealing cover 64, a threaded tube 63 and a sealing tube 62 which are integrally connected coaxially. The circumferential outer edge of the sealing tube 62 is integrally connected coaxially with a convex ring 61. The circumferential inner wall of the threaded tube 63 is threadedly connected to the circumferential outer edge of the threaded portion 53. The outer diameter of the smooth rod portion 52 is the same as the inner diameter of the sealing tube 62. The outer diameters of the convex column portion 54, the outer diameters of the sealing tube 62 and the outer diameters of the positioning hole 42 are consistent.

[0045] After adopting the above structure, the outer diameters of the convex column part 54, the sealing tube 62 and the positioning through hole 42 are consistent, which facilitates the stable connection of the bolt 5 and the nut 6 with the two hoop plates 4 respectively, and prevents the bolt 5 and the nut 6 from radial displacement during the assembly process; the nut 6 and the bolt 5 are fixedly connected by the threaded connection between the inner wall of the threaded tube 63 and the outer wall of the threaded part 53, and the two are tightened to reduce the distance between the convex ring 61 and the cap part 51, thereby reducing the size of the hoop mouth, locking the hoop plate 4 on the columnar body 7, and fixing the position of the fixing frame 1. In the locked state, the corresponding ends of the two hoop plates 4 are clamped between the convex ring 61 and the cap part 51, and the sealing tube 62 is sealed and connected to the light rod part 52, so that the nut 6 surrounds the threaded part 53, preventing the threaded part 53 from being eroded by the outside and rusting, thereby affecting the connection strength of the bolt 5 and the nut 6.

[0046] A gasket 55 is provided on the outer sleeve of the convex column portion 54, and the gasket 55 is locked between the cap portion 51 and the end of one of the clamping plates 4. The gasket 55 can enhance the fastening force between the cap portion 51 of the bolt 5 and the end of the clamping plate 4, and enhance the overall structural strength formed by connecting the clamping plates 4 end to end in sequence, thereby preventing the bolt 5 from loosening.

[0047] A further improvement is that an elastic clamping plate 41 is provided on the inner side of the clamping plate 4 ; and a side of the clamping plate 41 facing away from the clamping plate 4 is densely covered with protrusions 411 .

[0048] Specifically, the splint 41 is a rubber plate, and the protrusions 411 are hemispherical. After adopting the above structure, when the two clamping plates 4 are locked on the outside of the column 7 by forming a hoop through the threaded bolts 5 and nuts 6, the splint 41 undergoes elastic deformation, and the surface roughness of the splint 41 is increased by the densely distributed protrusions 411, which is beneficial to increase the pressure between the splint 41 and the outer wall of the column 7, thereby ensuring the locking force.

[0049] A further improvement is that each clamping plate 4 is provided with a fastening tube 43 on the side facing away from the clamping mouth, and an internal thread is provided on the axial inner wall of the fastening tube 43. The fastening tube 43 is threadedly connected to a fastening screw 44 through the internal thread, and the fastening screw 44 abuts against the clamping plate 41.

[0050] After the ends of the two hoop plates 4 are connected by a fastening unit to form a hoop mouth locked on the column 7, a fastening screw 44 is screwed into the fastening tube 43 on the side of the hoop plate 4 facing away from the column 7, so that the end of the fastening screw 44 abuts against the clamp plate 41, and the abutting position of the clamp plate 41 is locked between the fastening screw 44 and the outer wall of the column 7, thereby enhancing the locking pressure on the column 7, thereby preventing the hoop plate 4 from sliding or loosening and causing position displacement.

[0051] A further improvement is that the circumferential outer edge of the fastening tube 43 includes a threaded section 431 and a smooth section 432, the smooth section 432 is a cylindrical surface and is located between the threaded section 431 and the clamping plate 4, the threaded section 431 is threadedly connected with a fastening screw 45, and the fastening screw 45 and the clamping plate 4 are enclosed to form an enclosing cavity that surrounds the threaded section 431 and is isolated from the outside world.

[0052] After the fastening screw 44 is screwed into the fastening tube 43, the fastening screw 45 is screwed into the outer wall of the fastening tube 43. The end of the fastening screw 45 abuts against the clamping plate 4 to form an enclosing cavity to surround the fastening screw 44, thereby protecting the fastening screw 44 and preventing it from rusting with the inner wall of the fastening tube 43 and affecting the connection strength.

[0053] A further improvement is that an elastic sealing ring 433 is provided on the outer sleeve of the smooth section 432 , and the sealing ring 433 is clamped between the fastening bolt 5 and the hoop plate 4 .

[0054] The sealing ring 433 is a rubber ring, and both end surfaces are sealed and connected to the fastening screw 45 and the hoop plate 4 respectively, so as to further enhance the sealing performance between the fastening screw 45 and the hoop plate 4 and prevent the fastening screw 44 from rusting and affecting the connection strength.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A universal photovoltaic lighting device with a clamping ring, characterized in that: include: A photovoltaic lighting assembly, comprising a fixing frame (1), a photovoltaic unit (2) arranged above the fixing frame (1) and with a light-receiving surface facing upward, and a lighting unit (3) arranged below the fixing frame (1) and illuminating downward; A hoop assembly, the hoop assembly comprising at least two hoop plates (4) and a fastening unit arranged between adjacent hoop plates (4), wherein one of the hoop plates (4) is fixedly connected to the fixing frame (1), and the hoop plates (4) are detachably connected end to end in sequence through the fastening unit to form a hoop opening locked on a columnar body (7), the fastening unit comprising a bolt (5) and a nut (6), the bolt (5) comprising a cap portion (51), a bare rod portion (52) and a nut (6) connected in sequence coaxially. The threaded portion (53) is a round shaft with an outer diameter greater than or equal to the outer diameter of the threaded portion (53) and less than the outer diameter of the cap portion (51). The circumferential outer edge of the nut (6) is provided with a convex ring (61). The adjacent hoop plates (4) are clamped between the nut (6) and the convex ring (61). The circumferential outer edge of the smooth rod portion (52) is sealed with the circumferential inner wall of the nut (6). The nut (6) is closed at one end away from the bolt (5).

2. The universal photovoltaic lighting device of claim 1, characterized in that: The nut (6) comprises a sealing tube (62), a threaded tube (63) and a sealing cover (64) connected coaxially, the axial inner wall of the threaded tube (63) being threadedly connected to the circumferential outer edge of the threaded portion (53), the circumferential outer edge of the sealing tube (62) being sealingly connected to the circumferential inner wall of the smooth rod portion (52), and the convex ring (61) being arranged on the circumferential outer edge of the sealing tube (62).

3. The universal photovoltaic lighting device of claim 2, characterized in that: A convex column portion (54) having an outer diameter consistent with the outer diameter of the sealing tube (62) is coaxially connected between the cap portion (51) and the bare rod portion (52), and through-hole-shaped positioning through holes (42) are provided at both ends of the hoop plate (4), and the inner diameter of the positioning through hole (42) is consistent with the outer diameter of the positioning through hole (42).

4. The universal photovoltaic lighting device of claim 1, characterized in that: An elastic clamping plate (41) is provided on the inner side of the hoop plate (4).

5. The universal photovoltaic lighting device of claim 4, characterized in that: The side of the clamping plate (41) facing away from the hoop plate (4) is densely covered with protrusions (411).

6. The universal photovoltaic lighting device of claim 4, characterized in that: A fastening tube (43) is provided on a side of each hoop plate (4) facing away from the hoop opening, an internal thread is provided on the axial inner wall of the fastening tube (43), the fastening tube (43) is threadedly connected to a fastening screw (44) via the internal thread, and the fastening screw (44) abuts against the clamping plate (41).

7. The universal photovoltaic lighting device of claim 6, characterized in that: The circumferential outer edge of the fastening tube (43) comprises a threaded section (431) and a smooth section (432); the smooth section (432) is a cylindrical surface and is located between the threaded section (431) and the hoop plate (4); the threaded section (431) is threadedly connected to a fastening screw tube (45); the fastening screw tube (45) and the hoop plate (4) enclose a surrounding cavity that surrounds the threaded section (431) and is isolated from the outside.

8. The universal photovoltaic lighting device of claim 7, characterized in that: The outer cover of the smooth section (432) is provided with an elastic sealing ring (433), and the sealing ring (433) is clamped between the bolt (5) and the hoop plate (4).

9. The universal photovoltaic lighting device of any one of claims 1 to 8, characterized in that: At least two fastening units are arranged between corresponding ends of adjacent hoop plates (4), and are spaced apart and distributed along the width direction of the hoop plates (4).

10. The universal photovoltaic lighting device of any one of claims 1 to 8, characterized in that: Two clamping hoop plates (4) are arranged opposite to each other.

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