Self-generating energy-saving lighting device for sports park under viaduct

Abstract

The invention relates to a self-generating energy-saving lighting device for a sports park under a viaduct, and belongs to the technical field of lighting devices, the self-generating energy-saving lighting device comprises a street lamp and a friction wheel, the friction wheel is rotatably arranged beside the street lamp and used for being matched with a generator to supply power to the street lamp, and the self-generating energy-saving lighting device further comprises a sliding rail, a fixing assembly and an exercise bicycle; the fixing assembly is located on one side of the exercise bicycle, the fixing assembly and the exercise bicycle are slidably arranged on the sliding rail and horizontally slide in the length direction of the sliding rail, and the sliding rail is fixed to the ground and located beside the friction wheel. The fixing assembly comprises a fixing frame and two positioning cylinders, the two positioning cylinders are arranged on the fixing frame in a spaced mode, a distance exists between the two positioning cylinders, the positioning cylinders penetrate through the fixing frame and are connected with the fixing frame in a limiting mode, and the ends of the positioning cylinders are used for being connected with the end of a wheel axle of a riding vehicle in an inserted and embedded mode. The exercise bicycle has the effect of facilitating position switching of the riding bicycle and the exercise bicycle.

Description

Technical Field

[0001] The present application relates to the technical field of lighting devices, and in particular to a self-generating energy-saving lighting device for a sports park under an elevated bridge. Background Art

[0002] At present, the lighting device in the park is street lamps, which are used for supplementary lighting at night when the light is insufficient. There are various fitness equipment in the park, including fitness bicycles, which are referred to as fitness bikes. People who go to the park for a walk and exercise can ride in place on the fitness bikes to achieve the purpose of exercising.

[0003] At present, the lighting systems of sports parks under viaducts are mostly powered by mains electricity. Although it meets the basic lighting needs, it consumes a lot of energy when in operation for a long time. As the concept of energy conservation and environmental protection has become popular, how to use renewable energy for lighting has become a research hotspot. For street lamps near fitness equipment in the park, the driving force of the fitness bike is used for secondary artificial power generation. Usually, a friction wheel is installed next to the tire of the fitness bike, and a generator is connected to the friction wheel. When people exercising in the park ride on the fitness bike, the tire of the fitness bike drives the friction wheel to rotate, thereby generating electricity.

[0004] With the development of society, the concept of fitness has been deeply rooted in people's hearts. Cyclists have cycling equipment suitable for themselves. The sizes of bicycles for people of different heights and leg lengths are adjusted differently. The size of fitness bikes in the park cannot adapt to different users. Cyclists want to use their bicycles for human power generation, but there is a defect that the switch between cycling bikes and fitness bikes cannot be changed. Summary of the invention

[0005] In order to facilitate the switching of the positions of a cycling bike and an exercise bike, the present application provides a self-generating energy-saving lighting device for a sports park under an elevated bridge.

[0006] The present application provides a self-generating energy-saving lighting device for a sports park under an elevated bridge, which adopts the following technical solution: A self-generating energy-saving lighting device for a sports park under an elevated bridge comprises a street lamp and a friction wheel. The friction wheel is rotatably arranged beside the street lamp to cooperate with a generator to supply power to the street lamp. The device also comprises a slide rail, a fixing component and an exercise bike. The fixing component is located at one side of the exercise bike and both are slidably arranged on the slide rail and slide horizontally along the length direction of the slide rail. The slide rail is fixed on the ground and is located beside the friction wheel. The fixing component comprises a fixing frame and a positioning cylinder. Two positioning cylinders are arranged on the fixing frame at intervals and there is a distance between the two positioning cylinders. The positioning cylinder passes through the fixing frame and is limitedly connected to the fixing frame. The end of the positioning cylinder is used for inserting and connecting with the end of the wheel axle of the cycling bike.

[0007] By adopting the above technical solution, when an exerciser uses an exercise bike, the wheel of the exercise bike drives the friction wheel to rotate, and the friction wheel drives the generator to generate electricity. When a cyclist passes by the park and wants to use his or her bicycle to exercise and generate electricity, the fixing component and the exercise bike are moved to move the fixing component to the original position of the exercise bike, and the rear wheel of the bicycle is placed on the fixing frame. The positions of the two positioning cylinders are adjusted so that the positioning cylinders penetrate the fixing frame and are inserted and connected to the wheel axle of the rear wheel of the bicycle. The two positioning cylinders lift the rear wheel of the bicycle off the ground. The cyclist steps on the bicycle, and the friction wheel is driven to rotate by the rear wheel of the bicycle, and the friction wheel drives the generator to generate electricity. The setting of the fixing component facilitates the switching of the positions of the bicycle and the exercise bike.

[0008] Optionally, the fixing frame is provided with two rows of through holes in the vertical direction, adjacent through holes in a single row are arranged at intervals, a positioning tube passes through the through holes, a positioning hole is provided on the inner wall of each through hole, and a quick-release component for positioning with the positioning hole is provided on the positioning tube.

[0009] By adopting the above technical solution, the multiple through holes in the vertical direction are provided to facilitate the adjustment of the position of the positioning cylinder in the vertical direction, so as to adapt to the rear wheels of bicycles with different diameters, so that the rear wheels of bicycles with different diameters can also abut against the friction wheel after being placed on the fixing frame, thereby driving the friction wheel to rotate. The provision of the quick release assembly can realize the rapid installation and removal of the positioning cylinder on the fixing frame.

[0010] Optionally, the quick-release assembly includes a limit pin, a steel wire and a first spring. A slot is provided on the outer wall of the positioning cylinder. The first spring is located in the slot and one end is fixedly connected to the bottom of the slot, and the other end is fixedly connected to one end of the limit pin. The limit pin is slidably arranged in the slot and slides in a direction close to or away from the first spring. The end of the limit pin away from the first spring is plugged into the positioning hole, one end of the steel wire passes through the slot and is fixedly connected to the limit pin, and the other end of the steel wire is located outside the positioning cylinder, and the steel wire is slidably arranged relative to the positioning cylinder.

[0011] By adopting the above technical solution, the steel wire is pulled, and the steel wire pulls the limit pin to move in the direction of going deeper into the slot. At this time, the first spring is compressed, and the end of the limit pin is separated from the positioning hole, so that the positioning cylinder is quickly detached from the fixing frame. When the positioning cylinder needs to be installed on the fixing frame, it is only necessary to insert the positioning cylinder into the corresponding through hole. When the limit pin is facing the positioning hole, the first spring will push the end of the limit pin to be inserted into the corresponding positioning hole, so as to achieve the limiting of the positioning cylinder and the fixing frame.

[0012] Optionally, positioning caps are rotatably provided at the ends of adjacent positioning cylinders that are away from each other. The positioning caps rotate relative to the positioning cylinders. The positioning caps are threadedly connected to the fixing frame, and a steel wire passes through the center of the positioning caps.

[0013] By adopting the above technical solution, the threaded connection between the positioning cap and the fixing frame plays a second role in the positioning of the positioning cylinder on the fixing frame, and the limit pin inserted in the positioning hole is the first insurance. During the use of the fitness bike or cycling bike, vibrations will be transmitted to the fixing frame. The double insurance setting ensures the stability of the positioning cylinder after it is positioned on the fixing frame.

[0014] Optionally, a fixing seat is provided at the bottom of the fixing frame, the fixing frame is slidably set on the fixing seat and the sliding direction is along the direction of approaching or moving away from the friction wheel, and the fixing frame is provided with a limiting bolt for positioning with the fixing seat; the fixing seat is slidably set on the slide rail along the length direction of the slide rail.

[0015] By adopting the above technical solution, when wheels of different diameters are placed on the fixing frame, the distance between the outer wall of the wheel and the friction wheel can be adjusted by adjusting the position of the fixing frame on the fixing seat, and the fixing frame can be adapted to wheels of different diameters by adjusting the position of the positioning tube.

[0016] Optionally, a brush is fixed to the bottom of the fixing seat, and the brush is distributed on both sides of the slide rail.

[0017] By adopting the above technical solution, since the slide rail is in the park, debris or fallen leaves will be piled up next to the slide rail. When the fixed seat slides on the slide rail, the brush will clean the debris on both sides of the slide rail to ensure that the fixed seat slides smoothly on the slide rail.

[0018] Optionally, the fitness bike includes a rim and a solid tire, the solid tire is sleeved on the rim, a groove is provided on the rim, a bump is fixed on the inner wall of the solid tire, the bump is inserted into the groove, and the bump and the groove are both dovetail-shaped.

[0019] By adopting the above technical solution, due to the long-term friction between the solid tire and the friction wheel, the surface of the solid tire will be worn, resulting in a loose abutment between the solid tire and the friction wheel, and the friction wheel cannot be driven to rotate well. When replacing the solid tire, the solid tire can be replaced by inserting the protrusion into the groove. Due to the dovetail shape, the protrusion is installed in the horizontal direction when inserted into the groove. After the installation is completed, the solid tire will not fall off the rim during the rotation of the rim.

[0020] Optionally, a baffle is fixed on the rim, the baffle is annular, two baffles are provided and distributed on both sides of the rim, and the baffle covers the abutment between the solid tire and the rim.

[0021] By adopting the above technical solution, the baffle is arranged so that the solid tire cannot be separated from the rim in the horizontal direction after installation.

[0022] Optionally, a limit rod is hinged on the slide rail for fixing the position of the component. One end of the limit rod is hinged to the slide rail, and a positioning bolt is slidably provided on the other end. The positioning bolt passes through the limit rod and is inserted and connected to the slide rail. The limit rod spans the top of the slide rail, and the hinge axis between the limit rod and the slide rail is set along the length direction of the slide rail.

[0023] By adopting the above technical solution, when the fixed component or the exercise bike slides to a suitable position on the slide rail, the corresponding limit rod is swung to a state across the slide rail, and then the limit rod is connected to the slide rail through a positioning bolt, so that the limit rod can limit the position of the fixed component and the exercise bike on the slide rail.

[0024] Optionally, a second spring is sleeved on the positioning bolt, one end of the second spring is fixedly connected to the positioning bolt, and the other end is fixedly connected to the limiting rod.

[0025] By adopting the above technical solution, the second spring can drive the positioning bolt to move toward the direction close to the slide rail without external force, so that the positioning bolt is not easy to fall off the slide rail.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The sliding fitness bike and fixed components can realize the free switching of the fitness bike and the cycling bike, making it convenient for different people to use different bicycles for human power generation; 2. The setting of the quick-release assembly enables quick installation and removal of the positioning tube on the fixing frame; 3. The threaded connection between the positioning cap and the fixing frame serves as a second insurance for the positioning tube to be positioned on the fixing frame, and the limit pin inserted into the positioning hole serves as the first insurance. During the use of the fitness bike or cycling bike, vibrations will be transmitted to the fixing frame. The double insurance setting ensures the stability of the positioning tube after it is positioned on the fixing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the local structure of the fitness bike; Figure 3 It is a schematic diagram of the local structure after the baffle is hidden; Figure 4 It is a cross-sectional view of the local structure of the quick-release assembly.

[0028] In the figure, 1, slide rail; 11, limit rod; 12, positioning bolt; 13, second spring; 2, fixing assembly; 21, fixing frame; 211, through hole; 212, positioning hole; 22, positioning tube; 221, slot; 3, exercise bike; 31, rim; 311, groove; 312, baffle; 32, solid tire; 321, bump; 4, quick release assembly; 41, limit pin; 42, steel wire; 43, first spring; 5, positioning cap; 6, fixing seat; 61, slide groove; 62, limit bolt; 63, brush; 7, friction wheel; 8, street light. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0030] The embodiment of the present application discloses a self-generating energy-saving lighting device for a sports park under an elevated bridge.

[0031] refer to Figure 1 A self-generating energy-saving lighting device for a sports park under an elevated bridge comprises a street lamp 8, a friction wheel 7, an exercise bike 3 and a fixed component 2. The friction wheel 7 is arranged on the ground beside the street lamp 8, and a slide rail 1 is also arranged on the ground beside the street lamp 8. Two slide rails 1 are arranged in parallel. The exercise bike 3 and the fixed component 2 are both slidably arranged on the slide rail 1 and slide along the length direction of the slide rail 1. The fixed component 2 plays a role of limiting support for the rear wheel of the cycling bike, so that the rear wheel of the cycling bike is mounted on the fixed component 2 and abuts against the friction wheel 7. When a person rides on the cycling bike, the friction wheel 7 is driven to rotate by the rear wheel of the cycling bike, and the friction wheel 7 is connected to the generator to generate electrical energy, and the generated electrical energy is used for lighting the street lamp 8.

[0032] refer to Figure 2 and Figure 3 The slide rail 1 is provided with a fixing seat 6, which slides along the length direction of the slide rail 1. A brush 63 is fixed on the bottom surface of the fixing seat 6. The brush 63 is located on both sides of the slide rail 1. When the fixing seat 6 moves, the brush 63 cleans both sides of the slide rail 1, thereby ensuring the cleanliness of the surrounding environment and preventing foreign matter from obstructing the sliding of the fixing seat 6. The fitness bike 3 and the fixing assembly 2 are both located on the fixing seat 6, and the fitness bike 3 is fixed on the top of the fixing seat 6.

[0033] refer to Figure 2A limit rod 11 is hinged on the slide rail 1, and the limit rod 11 is an inverted U-shape as a whole. One end of the limit rod 11 is hinged to the slide rail 1 and the hinge axis is arranged along the length direction of the slide rail 1. The other end of the limit rod 11 is provided with a positioning bolt 12 and a second spring 13. The positioning bolt 12 penetrates the limit rod 11 and is inserted and connected with the slide rail 1. The second spring 13 is sleeved on the positioning bolt 12. One end of the second spring 13 is fixedly connected to the positioning bolt 12, and the other end is fixedly connected to the inner wall of the limit rod 11. The limiting rod 11 plays a role in limiting the position of the fixed seat 6. When the limiting rod 11 is used, the limiting rod 11 is flipped so that the limiting rod 11 crosses the slide rail 1. At this time, the slide rail 1 is a single slide rail 1. A corresponding hole is opened on the side wall of the slide rail 1. The end of the positioning bolt 12 is inserted into the corresponding hole. The second spring 13 is in the original length state. If the positioning bolt 12 is to be separated from the limit of the slide rail 1, the positioning bolt 12 is pulled away from the slide rail 1. At this time, the second spring 13 is in a compressed state until the end of the positioning bolt 12 is separated from the corresponding hole. In this embodiment, the limiting rod 11 can be set only on a single slide rail 1, or on both slide rails 1. Taking a single slide rail as an example: the number of limiting rods 11 set on a single slide rail 1 is four, so as to facilitate the position locking of the fixed seat 6 after sliding, that is, the position locking of the fixed seat 6 when the fitness bike 3 is facing the friction wheel 7, and the locking of the position of the fixed seat 6 when the fixing assembly 2 is facing the friction wheel 7.

[0034] refer to Figure 2 and Figure 3 The exercise bike 3 includes a rim 31, a solid tire 32 and a baffle 312. The rim 31 is provided with a groove 311. A protrusion 321 is fixed on the inner wall of the solid tire 32. The protrusion 321 is inserted into the groove 311 to complete the installation of the solid tire 32 on the rim 31. Two baffles 312 are provided and distributed on both sides of the rim 31. The baffles 312 cover the abutment between the solid tire 32 and the rim 31. The baffles 312 are fixedly connected to the rim 31. The baffles 312 are disc-shaped and coaxially arranged with the rim 31. The baffles 312 can be directly fixed on the rotating shaft of the rim 31 through nuts to achieve the fixing of the baffles 312 and the rim 31. After the exercise bike 3 is used for a long time, the solid tire 32 is replaced so that the solid tire 32 of the exercise bike 3 can fully contact with the friction wheel 7.

[0035] refer to Figure 1 , Figure 3 and Figure 4 The fixing assembly 2 includes a fixing frame 21 and a positioning cylinder 22. The fixing frame 21 is slidably arranged on the fixing seat 6 and slides horizontally in the direction of the vertical slide rail 1. A slide groove 61 is provided on the top of the fixing seat 6. The slide groove 61 is provided along the length direction of the vertical slide rail 1. The bottom of the fixing frame 21 slides in the slide groove 61. A plurality of plug holes are provided on the top of the fixing seat 6. Adjacent plug holes are arranged at intervals along the length direction of the slide groove 61. A limiting bolt 62 is provided on the fixing frame 21. The limiting bolt 62 penetrates the fixing frame 21 and is threadedly connected to the corresponding plug hole.

[0036] refer to Figure 3 and Figure 4 The overall shape of the fixing frame 21 is a concave shape, and a through hole 211 is provided on the vertical side wall of the fixing frame 21. The through holes 211 are provided in two rows, that is, there is a row of through holes 211 on the vertical side wall of one side of the fixing frame 21. Adjacent through holes 211 in a single row are provided at intervals along the vertical direction. Two positioning cylinders 22 are provided, and a single row of through holes 211 corresponds to one positioning cylinder 22.

[0037] refer to Figure 3 and Figure 4 A multi-sided hole is provided at one end of the positioning tube 22, and a positioning cap 5 is rotatably connected to the other end of the positioning tube 22. The positioning cap 5 is colinear with the center line of the positioning tube 22, and the positioning cap 5 rotates relative to the positioning tube 22. The multi-sided hole is plugged and connected with the nut at the rear wheel axle of the bicycle, so that the positioning tube 22 is plugged and connected with the rear wheel axle of the bicycle, and the two positioning tubes 22 support the rear wheel of the bicycle without affecting the rotation of the rear wheel of the bicycle.

[0038] refer to Figure 1 and Figure 4 A positioning hole 212 is provided on the inner wall of the through hole 211, and the positioning hole 212 is provided in a direction perpendicular to the through hole 211. A card slot 221 is provided on the circumferential outer wall of the positioning cylinder 22, and the card slot 221 is provided perpendicular to the positioning cylinder 22. A quick release assembly 4 is provided on the positioning cylinder 22, and the quick release assembly 4 includes a limit pin 41, a steel wire 42 and a first spring 43. The first spring 43 is located in the card slot 221 and one end is fixedly connected to the bottom of the card slot 221, and the other end of the first spring 43 is fixedly connected to one end of the limit pin 41. The limit pin 41 is slidably arranged in the card slot 221 and slides in a direction close to or away from the first spring 43. The end of the limit pin 41 away from the first spring 43 is plug-in-connected with the positioning hole 212. One end of the steel wire 42 penetrates into the card slot 221 and is fixedly connected to the limit pin 41, and the other end of the steel wire 42 penetrates from the center of the positioning cylinder 22 to the center of the positioning cap 5 to the outside of the positioning cylinder 22. A pull ring is fixed to one end of the steel wire 42 located outside the positioning cylinder 22. The steel wire 42 is slidably arranged relative to the positioning cylinder 22 and the positioning cap 5. When the fixing assembly 2 is used, the rear wheel of the bicycle is placed on the fixing frame 21, the pull ring is pulled, the positioning cylinder 22 is inserted into the corresponding through hole 211, the pull ring is loosened and the positioning cap 5 is rotated, the positioning cap 5 is threadedly connected to the fixing frame 21, and the end of the limit pin 41 is inserted into the corresponding positioning hole 212. At this time, the end of the positioning cylinder 22 away from the pull ring completely penetrates the side wall of one side of the fixing frame 21 and is inserted and connected at the wheel axle of the rear wheel of the bicycle. The two symmetrically distributed positioning cylinders 22 completely lift the rear wheel, thereby realizing the positioning of the rear wheel of the bicycle, and the position is adjusted so that the rear wheel of the bicycle abuts against the friction wheel 7.

[0039] The implementation principle of the self-generating energy-saving lighting device for a sports park under an elevated bridge in the embodiment of the present application is as follows: when an exerciser uses an exercise bike 3, the wheel of the exercise bike 3 drives the friction wheel 7 to rotate, and the friction wheel 7 drives the generator to generate electricity. When a cyclist passes by the park and wants to use his or her own bicycle to exercise and generate electricity, the fixing component 2 and the exercise bike 3 are moved, and the fixing component 2 is moved to the original position of the exercise bike 3, and the rear wheel of the bicycle is placed on the fixing frame 21, and the positions of the two positioning cylinders 22 are adjusted so that the positioning cylinders 22 penetrate the fixing frame 21 and are inserted and connected to the wheel axle of the rear wheel of the bicycle. The two positioning cylinders 22 lift the rear wheel of the bicycle off the ground and adjust the position to abut against the friction wheel 7. The cyclist steps on the bicycle, and the friction wheel 7 is driven to rotate by the rear wheel of the bicycle, and the friction wheel 7 drives the generator to generate electricity.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-generating energy-saving lighting device for a sports park under an elevated bridge, comprising a street lamp (8) and a friction wheel (7), wherein the friction wheel (7) is rotatably arranged beside the street lamp (8) and is used to cooperate with a generator to supply power to the street lamp (8), characterized in that: The invention also comprises a slide rail (1), a fixing assembly (2) and an exercise bike (3); the fixing assembly (2) is located on one side of the exercise bike (3); both are slidably arranged on the slide rail (1) and slide horizontally along the length direction of the slide rail (1); the slide rail (1) is fixed on the ground and is located beside the friction wheel (7); the fixing assembly (2) comprises a fixing frame (21) and a positioning cylinder (22); two positioning cylinders (22) are provided; the two positioning cylinders (22) are arranged on the fixing frame (21) at intervals and there is a distance between the two positioning cylinders (22); the positioning cylinder (22) penetrates the fixing frame (21) and is limitedly connected to the fixing frame (21); the end of the positioning cylinder (22) is used for inserting and connecting with the end of the wheel axle of the riding bike.

2. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 1, characterized in that: The fixing frame (21) is provided with two rows of through holes (211) in a vertical direction, and adjacent through holes (211) in a single row are arranged at intervals. The positioning tube (22) passes through the through holes (211), and a positioning hole (212) is provided on the inner wall of each through hole (211). The positioning tube (22) is provided with a quick-release assembly (4) for positioning with the positioning hole (212).

3. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 2, characterized in that: The quick-release assembly (4) comprises a limit pin (41), a steel wire (42) and a first spring (43). A slot (221) is provided on the outer wall of the positioning tube (22). The first spring (43) is located in the slot (221) and one end of the first spring is fixedly connected to the bottom of the slot (221), and the other end is fixedly connected to one end of the limit pin (41). The limit pin (41) is slidably arranged in the slot (221) and slides in a direction approaching or away from the first spring (43). The end of the limit pin (41) away from the first spring (43) is plugged and connected to the positioning hole (212). One end of the steel wire (42) passes through the slot (221) and is fixedly connected to the limit pin (41). The other end of the steel wire (42) is located outside the positioning tube (22). The steel wire (42) is slidably arranged relative to the positioning tube (22).

4. The self-generating energy-saving lighting device for a sports park under a viaduct according to claim 3 is characterized in that: Positioning caps (5) are rotatably provided at the ends of the adjacent positioning cylinders (22) that are away from each other. The positioning caps (5) rotate relative to the positioning cylinders (22). The positioning caps (5) are threadedly connected to the fixing frame (21), and the steel wire (42) passes through the center of the positioning caps (5).

5. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 1, characterized in that: A fixing seat (6) is provided at the bottom of the fixing frame (21); the fixing frame (21) is slidably arranged on the fixing seat (6) and the sliding direction is in a direction close to or away from the friction wheel (7); a limiting bolt (62) for positioning with the fixing seat (6) is provided on the fixing frame (21); the fixing seat (6) is slidably arranged on the slide rail (1) along the length direction of the slide rail (1).

6. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 5, characterized in that: A brush (63) is fixed to the bottom of the fixing seat (6), and the brushes (63) are distributed on both sides of the slide rail (1).

7. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 1, characterized in that: The fitness bike (3) comprises a rim (31) and a solid tire (32); the solid tire (32) is sleeved on the rim (31); a groove (311) is provided on the rim (31); a convex block (321) is fixed on the inner wall of the solid tire (32); the convex block (321) is inserted into the groove (311); and the convex block (321) and the groove (311) are both dovetail-shaped.

8. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 7, characterized in that: A baffle (312) is fixed on the rim (31), the baffle (312) is annular, two baffles (312) are provided and distributed on both sides of the rim (31), and the baffles (312) cover the abutment portion between the solid tire (32) and the rim (31).

9. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 1, characterized in that: The slide rail (1) is hinged with a limit rod (11) for limiting the position of the fixed component (2); one end of the limit rod (11) is hinged with the slide rail (1); the other end is slidably provided with a positioning bolt (12); the positioning bolt (12) penetrates the limit rod (11) and is inserted and connected with the slide rail (1); the limit rod (11) spans the top of the slide rail (1); and the hinge axis between the limit rod (11) and the slide rail (1) is arranged along the length direction of the slide rail (1).

10. The self-generating energy-saving lighting device for a sports park under an elevated bridge according to claim 9, characterized in that: A second spring (13) is sleeved on the positioning bolt (12); one end of the second spring (13) is fixedly connected to the positioning bolt (12), and the other end is fixedly connected to the limiting rod (11).

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