Environment-friendly lighting device for subway tunnel

Abstract

This invention relates to the field of tunnel lighting technology and discloses an environmentally friendly lighting device for subway tunnels, comprising a lighting unit, a rotating unit, a dust removal unit, and a dust collection unit. The lighting unit includes a lamp housing, two fixed plates, and a lamp tube. The two fixed plates are fixed to the lamp housing. The lamp tube is made of a light-transmitting material and is rotatably mounted between the two fixed plates. The two fixed plates and the lamp tube together form an lighting space. Within this lighting space, a lighting module consisting of a light source and a control circuit is installed. A temperature sensor is installed on the control circuit. This invention achieves automatic cleaning of the lamp tube surface by driving the rotating shaft and dust removal roller with a motor. The bristles on the dust removal roller continuously brush the lamp tube surface, effectively removing dust and preventing dust from covering the lamp tube, thereby ensuring the light transmittance and lighting effect of the lamp tube.

Description

Technical Field

[0001] This invention relates to the field of tunnel lighting technology, and in particular to an environmentally friendly lighting device for subway tunnels. Background Technology

[0002] Subway tunnel lighting equipment is an important component of ensuring the safe operation of the subway. It is mainly used to provide sufficient lighting for the tunnel to ensure visibility during train operation, maintenance personnel work, and emergency evacuation.

[0003] A search revealed that Chinese Patent CN220601410U discloses an adjustable tunnel lighting device, including a connecting plate. Connecting brackets are located on both the front and rear sides of the bottom of the connecting plate. A lighting device body is positioned between the two connecting brackets. An adjustment component is located at the bottom of the connecting plate, between the two connecting brackets and hinged to the top of the lighting device body. A cleaning brush is located at the bottom of the lighting device body. This solution uses a driving component to energize a miniature electric push rod, causing it to move a rack plate back and forth. Through the coordinated use of the rack plate, gears, connecting shaft, and round shaft, the cleaning brush moves back and forth to clean dust adhering to the protective glass surface, preventing it from affecting the lighting effect. This eliminates the need for subsequent cleaning by personnel, reducing labor intensity and further improving the practicality of the device. However, the above solution still has the following shortcomings in actual use:

[0004] The above-mentioned solution uses a cleaning brush to clean the dust adhering to the surface of the protective glass by moving back and forth. While the cleaning brush can effectively remove the dust adhering to the surface of the protective glass and ensure the light transmittance and lighting effect of the lampshade, the movement itself can also block the light, thus affecting the lighting effect of the lamp. This blocking effect can cause fluctuations or discontinuities in the lighting light, especially when the cleaning brush moves at a high frequency or over a large range. This may cause changes in the brightness of the light in the tunnel, affecting the visual comfort of train drivers and passengers, and may even pose a potential risk to driving safety. In addition, frequent blocking may also reduce the overall lighting efficiency of the lamp, making it impossible for the lighting equipment to provide a stable lighting environment continuously. This drawback may be further amplified, especially in key areas that require high-brightness lighting, such as tunnel entrances, curves, or emergency evacuation passages.

[0005] Therefore, it is necessary to design an environmentally friendly lighting device for subway tunnels to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an environmentally friendly lighting device for subway tunnels.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An environmentally friendly lighting device for subway tunnels includes a lighting unit, a rotating unit, a dust removal unit, and a dust collection unit;

[0009] The lighting unit includes a lamp housing, two fixing plates, and a lamp tube. The two fixing plates are fixed to the lamp housing. The lamp tube is made of a light-transmitting material and is rotatably mounted between the two fixing plates. The two fixing plates and the lamp tube together form a lighting space. A lighting module consisting of a light source and a control circuit is installed in the lighting space. A temperature sensor is installed on the control circuit.

[0010] The rotating unit is located inside the lamp housing and is used to drive the lamp tube to rotate.

[0011] The dust removal unit is located inside the lamp housing and is used to clean the dust on the surface of the lamp tube.

[0012] The dust collection unit is located inside the lamp housing and is used to collect dust. The dust collection unit consists of a drive component, two suction components and a dust collection box, and the dust collection box has a built-in filter.

[0013] As a preferred embodiment of the present invention, the lighting unit further includes two fixing rings, two vents, a dustproof net, and an air inlet cover. The two fixing rings are respectively fixed on the opposite sides of two fixing plates. The two ends of the lamp tube are respectively fitted onto the two fixing rings. The outer circumferential surface of each fixing ring is in contact with the inner surface of the lamp tube. The two vents are respectively opened on the two fixing plates. The dustproof net is arranged in one of the vents, and the air inlet cover is fixed in the other vent. The two vents are arranged facing each other.

[0014] As a preferred embodiment of the present invention, the rotating unit includes a rotating shaft, two rotating wheels, and a motor. The rotating shaft is rotatably installed inside the lamp housing, and both ends of the rotating shaft extend to the outside of the lamp housing. The two rotating wheels are fixedly sleeved on the rotating shaft, and each rotating wheel is in contact with the surface of the lamp tube. The motor is installed inside the lamp housing. A first gear is fixedly sleeved on the rotating shaft, and a second gear is fixedly sleeved on the output shaft of the motor. The first gear and the second gear mesh with each other.

[0015] As a preferred embodiment of the present invention, the dust removal unit includes a rotating rod, a dust removal roller, brush bristles, and a suction pipe. The rotating rod is rotatably mounted on the lamp housing, and one end of the rotating rod extends to the outside of the lamp housing. The dust removal roller is fixedly sleeved on the rotating rod, and the brush bristles are arranged on the surface of the dust removal roller. The suction pipe is fixed inside the lamp housing and has several suction holes, each of which is positioned directly opposite the dust removal roller. The suction pipe is connected to the dust collection box via a pipe, and the rotating rod is connected to the rotating shaft via a transmission component.

[0016] As a preferred embodiment of the present invention, the transmission component adopts a belt drive transmission method.

[0017] As a preferred embodiment of the present invention, the drive assembly includes two bearing seats, a guide rod, a reciprocating screw, and a movable plate. The two bearing seats are fixed inside the lamp housing. The guide rod is fixed between the two bearing seats. The two ends of the reciprocating screw are rotatably mounted on the two bearing seats. One end of the reciprocating screw is connected to the output shaft of the motor. The movable plate is threaded onto the reciprocating screw and is slidably mounted on the guide rod.

[0018] As a preferred embodiment of the present invention, the air intake assembly includes a strip-shaped airbag, two mounting tubes and two one-way valves. One end of the strip-shaped airbag is connected to one of the bearing seats and the other end is connected to the movable plate. One end of each of the two mounting tubes is connected to the strip-shaped airbag. The two one-way valves are respectively installed on the two mounting tubes. One end of one of the mounting tubes away from the strip-shaped airbag is connected to the dust collection box.

[0019] As a preferred embodiment of the present invention, the flow limiting directions of the two one-way valves located on the same strip-shaped airbag are opposite.

[0020] As a preferred embodiment of the present invention, the lamp housing is provided with a heat dissipation structure, which includes a mounting cylinder, two rotating plates, a mesh cylinder, an air guide shroud, an exhaust fan, an air duct, and a shaft. The mounting cylinder is fixed to the side of the lamp housing and has an assembly opening. The two rotating plates are arranged inside the mounting cylinder, and the mesh cylinder is fixed between the two rotating plates. The two rotating plates and the mesh cylinder together form a gas drying zone containing a desiccant. The air guide shroud is fixed inside the assembly opening, and the exhaust fan is installed at the end of the air guide shroud away from the mounting cylinder. The end of the mounting cylinder away from the lamp housing has a hole, and the shaft is rotatably assembled in the hole. One end of the shaft is fixedly connected to one of the rotating plates, and the other end of the shaft is located outside the mounting cylinder and is fixedly fitted with a third gear. A fourth gear meshing with the third gear is arranged above it, and the fourth gear is fixedly fitted at the end of the rotating shaft away from the transmission component. One end of the air duct is connected to the mounting cylinder, and the other end is connected to the air inlet shroud.

[0021] As a preferred embodiment of the present invention, the air guide shroud is positioned with one end inside the mounting cylinder facing the mesh cylinder.

[0022] The present invention has the following beneficial effects:

[0023] 1. By driving the rotation of the shaft and the cleaning roller by the motor, the automatic cleaning function of the lamp tube surface is realized. The bristles on the cleaning roller can continuously brush the lamp tube surface, effectively removing dust and preventing dust from covering the lamp tube, thereby ensuring the light transmittance and lighting effect of the lamp tube. Compared with the traditional reciprocating movement of the cleaning plate, this rotary cleaning method will not block the light source, avoid the phenomenon of the lamp being bright and dim, and ensure the stability and continuity of the lighting effect.

[0024] 2. Through the synergistic action of the reciprocating screw, strip airbag and suction component, the solution achieves the function of collecting dust on the surface of the lamp tube. The dust brushed off by the dust removal roller is absorbed by the dust suction hole and intercepted and collected by the filter in the dust collection box, which effectively avoids secondary pollution of the lamp tube by dust. This design not only improves cleaning efficiency, but also reduces the spread of dust in the tunnel and improves the air quality in the tunnel.

[0025] 3. Through the design of the exhaust fan and air duct, active heat dissipation of the lamp tube is achieved. When the temperature sensor detects that the internal temperature of the lamp tube is too high, the exhaust fan starts to introduce external air into the lamp tube to remove the heat and prevent the lighting module from being damaged due to overheating. This active heat dissipation function significantly improves the reliability and service life of the lamp, and is especially suitable for high temperature and high humidity environments such as subway tunnels.

[0026] 4. To address the issue of high humidity inside tunnels, this invention incorporates an air dehumidification function. A fan guides air into the air guide hood, where it passes through a desiccant inside the mesh cylinder to absorb moisture. The resulting dry air then enters the lamp tube. This design not only effectively reduces humidity inside the lamp tube, preventing damage to the lighting module from humid air, but also ensures continuous dehumidification by rotating the mesh cylinder to fully agitate the desiccant and prevent it from clumping. This function is particularly important in humid tunnel environments, significantly improving the durability and stability of the lamps. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an environmentally friendly subway tunnel lighting device proposed in this invention;

[0028] Figure 2 This is a structural schematic diagram from another perspective of an environmentally friendly subway tunnel lighting device proposed in this invention;

[0029] Figure 3 This is a cross-sectional structural diagram of an environmentally friendly subway tunnel lighting device proposed in this invention;

[0030] Figure 4 This is a cross-sectional view of the lamp housing.

[0031] Figure 5 This is a cross-sectional view of the two mounting plates and the lamp holder.

[0032] Figure 6 This is a cross-sectional view of the mounting cylinder.

[0033] Figure 7 A schematic diagram of the drive assembly and two intake assemblies;

[0034] Figure 8 for Figure 1 Enlarged view of the structure at point A;

[0035] Figure 9 for Figure 7 Enlarged view of the structure at point B;

[0036] Figure 10 This is a cross-sectional view of the dust collection box.

[0037] In the diagram: 11. Lamp housing; 12. Fixing plate; 13. Fixing ring; 14. Lamp tube; 15. Dustproof net; 16. Air intake hood; 17. Temperature sensor; 21. Rotating shaft; 22. Rotating wheel; 23. Motor; 24. First gear; 25. Second gear; 31. Mounting cylinder; 32. Rotating plate; 33. Net cylinder; 34. Air guide hood; 35. Exhaust fan; 36. Air guide pipe; 37. Shaft; 38. Third gear; 39. Fourth gear; 41. Rotating rod; 42. Dust removal roller; 43. Brush bristles; 44. Transmission component; 45. Suction pipe; 46. Suction hole; 51. Bearing seat; 52. Guide rod; 53. Reciprocating screw; 54. Moving plate; 55. Strip-shaped airbag; 56. Mounting tube; 57. One-way valve; 58. Dust collection box. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Reference Figure 1-10 An environmentally friendly subway tunnel lighting device includes a lighting unit, a rotating unit, a dust removal unit, and a dust collection unit. The lighting unit includes a lamp housing 11, two fixing plates 12, and a lamp tube 14. The two fixing plates 12 are fixed to the lamp housing 11. The lamp tube 14 is made of a light-transmitting material and is rotatably mounted between the two fixing plates 12. The two fixing plates 12 and the lamp tube 14 together form a lighting space. A lighting module consisting of a light source and a control circuit is installed in this lighting space. A temperature sensor is installed on the control circuit. 17. The lighting unit also includes two fixing rings 13, two vents, a dustproof net 15, and an air intake cover 16. The two fixing rings 13 are respectively fixed on the opposite sides of the two fixing plates 12. The two ends of the lamp tube 14 are respectively fitted onto the two fixing rings 13. The outer circumferential surface of each fixing ring 13 is in contact with the inner surface of the lamp tube 14. The two vents are respectively opened on the two fixing plates 12. The dustproof net 15 is arranged in one of the vents, and the air intake cover 16 is fixed in the other vent. The two vents are arranged facing each other.

[0040] The rotating unit is located inside the lamp housing 11 and is used to drive the lamp tube 14 to rotate. The rotating unit includes a rotating shaft 21, two rotating wheels 22 and a motor 23. The rotating shaft 21 is rotatably installed inside the lamp housing 11, and both ends of the rotating shaft 21 extend to the outside of the lamp housing 11. The two rotating wheels 22 are fixedly sleeved on the rotating shaft 21, and each rotating wheel 22 is in contact with the surface of the lamp tube 14. The motor 23 is installed inside the lamp housing 11. A first gear 24 is fixedly sleeved on the rotating shaft 21, and a second gear 25 is fixedly sleeved on the output shaft of the motor 23. The first gear 24 and the second gear 25 mesh with each other. When the motor 23 is running, it can drive the rotating shaft 21 to rotate through the meshing first gear 24 and second gear 25. When the rotating shaft 21 rotates, the two rotating wheels 22 on it rotate accordingly. During the rotation, the two rotating wheels 22 can drive the lamp tube 14 to rotate under the action of friction. At the same time, when the rotating shaft 21 rotates, it can also drive the rotating rod 41 to rotate through the transmission component 44. When the rotating rod 41 rotates, it will drive the cleaning roller 42 to rotate.

[0041] The dust removal unit is located inside the lamp housing 11 and is used to clean the dust on the surface of the lamp tube 14. The dust removal unit includes a rotating rod 41, a dust removal roller 42, brush bristles 43, and a suction pipe 45. The rotating rod 41 is rotatably mounted on the lamp housing 11, and one end of the rotating rod 41 extends to the outside of the lamp housing 11. The dust removal roller 42 is fixedly sleeved on the rotating rod 41, and the brush bristles 43 are arranged on the surface of the dust removal roller 42. The suction pipe 45 is fixed inside the lamp housing 11, and a number of suction holes 46 are opened on the suction pipe 45. Each suction hole 46 is used to clean the dust on the lamp tube 14. Dust holes 46 are all positioned directly opposite the dust removal roller 42. The dust suction pipe 45 is connected to the dust collection box 58 via a pipe. The rotating rod 41 is connected to the rotating shaft 21 via a transmission component 44. The transmission component 44 adopts a belt drive transmission method. The bristles 43 on the dust removal roller 42 can continuously brush the surface of the lamp tube 14 and remove the dust from the surface of the lamp tube 14, thus cleaning the lamp tube 14. The cleaning action can prevent dust from covering the lamp tube 14, thereby ensuring the light transmittance of the lamp tube 14.

[0042] The dust collection unit is located inside the lamp housing 11 and is used to collect dust. The dust collection unit consists of a drive assembly, two suction assemblies and a dust collection box 58. The dust collection box 58 has a built-in filter. The drive assembly includes two bearing seats 51, a guide rod 52, a reciprocating screw 53 and a moving plate 54. The two bearing seats 51 are fixed inside the lamp housing 11. The guide rod 52 is fixed between the two bearing seats 51. The two ends of the reciprocating screw 53 are rotatably mounted on the two bearing seats 51 respectively. One end of the reciprocating screw 53 is connected to the output shaft of the motor 23. The moving plate 54 is threaded onto the reciprocating screw 53 and is slidably mounted on the guide rod 52. The suction assembly includes a strip-shaped airbag 55, two mounting tubes 56, and two one-way valves 57. The two one-way valves 57, located on the same strip-shaped airbag 55, have opposite flow-limiting directions. One end of the strip-shaped airbag 55 is connected to one of the bearing seats 51, and the other end is connected to a moving plate 54. One end of each of the two mounting tubes 56 is connected to the strip-shaped airbag 55. The two one-way valves 57 are respectively mounted on the two mounting tubes 56. The end of one of the mounting tubes 56 away from the strip-shaped airbag 55 is connected to a dust collection box 58. When the moving plate 54 stretches the strip-shaped airbag... When the airbag 55 is in operation, the strip-shaped airbag 55 can draw air from inside the suction pipe 45 through the pipe, which causes the suction holes 46 on the suction pipe 45 to perform suction action. The dust brushed off the surface of the lamp tube 14 by the bristles 43 will be absorbed by the suction holes 46 and enter the dust collection box 58 under the suction action of the strip-shaped airbag 55. The dust collection box 58 has a built-in filter element, which can intercept and collect the dust in the gas. This design can collect the dust on the surface of the lamp tube 14 and avoid the dust from causing secondary pollution to the lamp tube 14.

[0043] The lamp housing 11 is provided with a heat dissipation structure, which includes a mounting cylinder 31, two rotating plates 32, a mesh cylinder 33, an air guide shroud 34, an exhaust fan 35, an air duct 36, and a shaft 37. The mounting cylinder 31 is fixed to the side of the lamp housing 11 and has an assembly opening. The two rotating plates 32 are arranged inside the mounting cylinder 31, and the mesh cylinder 33 is fixed between the two rotating plates 32. The two rotating plates 32 and the mesh cylinder 33 together form a gas drying zone, which contains a desiccant. The air guide shroud 34 is fixed inside the assembly port. One end of the air guide shroud 34 inside the mounting cylinder 31 is positioned directly opposite the mesh cylinder 33. The exhaust fan 35 is installed at the end of the air guide shroud 34 away from the mounting cylinder 31. A hole is provided at the end of the mounting cylinder 31 away from the lamp housing 11. The shaft 37 is rotatably assembled in the hole. One end of the shaft 37 is fixedly connected to one of the rotating plates 32. The other end of the shaft 37 is located outside the mounting cylinder 31 and is fixedly fitted with a third gear 38. A fourth gear 39 is arranged above the third gear 38 and meshes with it. The fourth gear 39 is fixedly fitted with a... Located at the end of the rotating shaft 21 away from the transmission component 44, one end of the air guide pipe 36 is connected to the mounting cylinder 31, and the other end is connected to the air inlet hood 16. When the exhaust fan 35 is running, it can draw air from inside the tunnel, allowing the gas to enter the air inlet hood 16 through the air guide pipe 36. Under the action of the exhaust fan 35, the gas will flow out through the air inlet hood 16 and finally escape from inside the lamp tube 14 through the dustproof net 15. During the flow of the gas, it can carry away the heat inside the lamp tube 14, which can actively dissipate heat from the lamp tube 14 and prevent the heat from causing thermal damage to the lighting module.

[0044] The specific working principle of this invention is as follows:

[0045] The subway tunnel lighting equipment proposed in this invention has the function of automatically cleaning the lamp tube 14. The lighting module inside the lamp tube 14 generates heat during operation. The accumulation of heat will cause the temperature inside the lamp tube 14 to gradually rise. When the temperature inside the lamp tube 14 reaches the preset temperature of the temperature sensor 17, the temperature sensor 17 will send a control signal to the motor 23 to power it on.

[0046] When the motor 23 is running, it drives the rotating shaft 21 to rotate through the meshing first gear 24 and second gear 25. When the rotating shaft 21 rotates, the two rotating wheels 22 on it rotate accordingly. During the rotation of the two rotating wheels 22, they can drive the lamp tube 14 to rotate under the action of friction. At the same time, when the rotating shaft 21 rotates, it can also drive the rotating rod 41 to rotate through the transmission component 44. When the rotating rod 41 rotates, it will drive the dust removal roller 42 to rotate. Therefore, under the linkage action of the transmission component 44, the rotation of the rotating rod 41 and the dust removal roller 42 are synchronized. During this process, the bristles 43 on the cleaning roller 42 continuously brush the surface of the lamp tube 14 and remove the dust from the surface of the lamp tube 14, thus cleaning the lamp tube 14. The cleaning action can prevent dust from covering the lamp tube 14, thereby ensuring the light transmittance of the lamp tube 14. Compared with the cleaning method of the cleaning plate moving back and forth, this special cleaning method will not cause the phenomenon of blocking the light source. While ensuring the cleaning effect of the lamp, it can also ensure the lighting effect of the lamp and avoid the phenomenon of the lamp flickering.

[0047] When the motor 23 is running, it can also drive the reciprocating screw 53 to rotate. Under the limiting action of the guide rod 52, the reciprocating screw 53 can drive the moving plate 54 to move back and forth along the guide rod 52. During this process, the moving plate 54 will periodically squeeze and stretch the two strip-shaped airbags 55, so that the two suction components operate alternately. For the suction components, there are two mounting tubes 56 connected to the strip-shaped airbag 55. One-way valves 57 are installed on both mounting tubes 56, and the flow restriction directions of the two one-way valves 57 are opposite. Specifically, one one-way valve 57 restricts gas to enter the strip-shaped airbag 55, and the other one-way valve 57 restricts gas to flow out of the strip-shaped airbag 55. Therefore, when the strip-shaped airbag 55 is stretched, the strip-shaped airbag 55 can perform a suction action. When the strip-shaped airbag 55 is compressed, the gas inside the strip-shaped airbag 55 will be forced out. Based on the above process, when the moving plate 54 stretches the strip airbag 55, the strip airbag 55 can draw air from inside the suction pipe 45 through the pipe. This causes the suction holes 46 on the suction pipe 45 to perform suction action. The dust brushed off the surface of the lamp tube 14 by the brush 43 will be absorbed by the suction holes 46 and enter the dust collection box 58 under the suction action of the strip airbag 55. The dust collection box 58 has a built-in filter element, which can intercept and collect dust in the gas. This design can collect dust on the surface of the lamp tube 14 and avoid secondary pollution of the lamp tube 14 by dust.

[0048] It is worth noting that suction components are provided on both sides of the moving plate 54. When the moving plate 54 squeezes one of the strip-shaped airbags 55, it simultaneously stretches the other strip-shaped airbag 55. That is, during the movement of the moving plate 54, the two strip-shaped airbags 55 are squeezed and stretched alternately. This causes the two suction components to operate alternately. When one suction component is performing a suction action, the other suction component is performing an exhaust action. By setting two suction components, the suction action of the suction pipe 45 can be ensured to continue continuously, avoiding any gaps in the suction action, thereby ensuring the device's dust absorption effect.

[0049] The subway tunnel lighting equipment proposed in this invention also has an active heat dissipation function. When the temperature sensor 17 is triggered, it also sends a control signal to the exhaust fan 35 to power it on. When the exhaust fan 35 is running, it can draw air from inside the tunnel and allow the gas to enter the air intake hood 16 through the air duct 36. Under the action of the exhaust fan 35, the gas will flow out through the air intake hood 16 and finally escape from the inside of the lamp tube 14 through the dustproof net 15. During the flow of the gas, it can carry away the heat inside the lamp tube 14, which can achieve the effect of active heat dissipation for the lamp tube 14 and avoid heat damage to the lighting module. In addition, it should be noted that tunnels are usually located underground or inside mountains, and the surrounding soil and rocks contain a lot of moisture. This moisture will seep into the tunnel through the tiny cracks in the tunnel wall, increasing the humidity in the air. Secondly, the tunnel is a relatively enclosed space with limited ventilation. Dry air from the outside is difficult to enter, while humid air from the inside is difficult to expel, causing moisture to accumulate inside the tunnel. Therefore, the air humidity inside the tunnel is high. To avoid damage to the lighting module caused by moisture in the air, this invention is designed to dehumidify the air entering the lamp tube 14. Specifically, when the exhaust fan 35 is running, it can guide the air into the air guide shroud 34. Under the guiding effect of the air guide shroud 34, the gas will flow through the mesh cylinder 33, which contains a desiccant. During this process, the desiccant can absorb the moisture mixed in with the air. Furthermore, the gas will flow out through the air guide pipe 36 and enter the air intake shroud 16. This design can dry and dehumidify the air entering the lamp tube 14, ensuring the heat dissipation effect of the lamp while preventing humid air from damaging the lamp.

[0050] In addition, while rotating, the shaft 21 can also drive the shaft 37 to rotate through the third gear 38 and the fourth gear 39. When the shaft 37 rotates, it will drive the corresponding rotating plate 32 to rotate, which will cause the mesh cylinder 33 to rotate as well. During the rotation of the mesh cylinder 33, the desiccant inside the mesh cylinder 33 will turn over. This phenomenon can prevent the desiccant from sitting for a long time, so that the air can fully contact the desiccant. The turning action of the desiccant can not only prevent the desiccant from clumping, but also ensure the drying effect on the air. When the staff performs routine maintenance on the lamps, they can simply replace the desiccant periodically.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An environmentally friendly lighting device for subway tunnels, characterized in that, Includes a lighting unit, a rotating unit, a dust removal unit, and a dust collection unit; The lighting unit includes a lamp housing, two fixing plates, and a lamp tube. The two fixing plates are fixed to the lamp housing. The lamp tube is made of a light-transmitting material and is rotatably mounted between the two fixing plates. The two fixing plates and the lamp tube together form a lighting space. A lighting module consisting of a light source and a control circuit is installed in the lighting space. A temperature sensor is installed on the control circuit. The rotating unit is located inside the lamp housing and is used to drive the lamp tube to rotate. The dust removal unit is located inside the lamp housing and is used to clean the dust on the surface of the lamp tube. The dust collection unit is located inside the lamp housing and is used to collect dust. The dust collection unit consists of a drive assembly, two suction assemblies and a dust collection box, and the dust collection box has a built-in filter. The drive assembly includes two bearing seats, a guide rod, a reciprocating screw, and a movable plate. The two bearing seats are fixed inside the lamp housing. The guide rod is fixed between the two bearing seats. The two ends of the reciprocating screw are rotatably mounted on the two bearing seats. One end of the reciprocating screw is connected to the output shaft of the motor. The movable plate is threaded onto the reciprocating screw and is slidably mounted on the guide rod. The air intake assembly includes a strip-shaped airbag, two mounting tubes, and two one-way valves. One end of the strip-shaped airbag is connected to one of the bearing seats, and the other end is connected to the moving plate. One end of each of the two mounting tubes is connected to the strip-shaped airbag. The two one-way valves are respectively installed on the two mounting tubes. One end of one of the mounting tubes, away from the strip-shaped airbag, is connected to the dust collection box.

2. The environmentally friendly subway tunnel lighting equipment according to claim 1, characterized in that, The lighting unit also includes two fixing rings, two vents, a dustproof net, and an air inlet cover. The two fixing rings are respectively fixed on the opposite sides of two fixing plates. The two ends of the lamp tube are respectively fitted onto the two fixing rings. The outer circumferential surface of each fixing ring is in contact with the inner surface of the lamp tube. The two vents are respectively opened on the two fixing plates. The dustproof net is arranged in one of the vents, and the air inlet cover is fixed in the other vent. The two vents are arranged facing each other.

3. The environmentally friendly subway tunnel lighting equipment according to claim 2, characterized in that, The rotating unit includes a rotating shaft, two rotating wheels, and a motor. The rotating shaft is rotatably installed inside the lamp housing, with both ends extending to the outside of the lamp housing. The two rotating wheels are fixedly sleeved on the rotating shaft, and each rotating wheel is in contact with the surface of the lamp tube. The motor is installed inside the lamp housing. A first gear is fixedly sleeved on the rotating shaft, and a second gear is fixedly sleeved on the output shaft of the motor. The first gear and the second gear mesh with each other.

4. The environmentally friendly subway tunnel lighting equipment according to claim 3, characterized in that, The dust removal unit includes a rotating rod, a dust removal roller, brush bristles, and a suction pipe. The rotating rod is rotatably mounted on the lamp housing, with one end extending to the outside of the lamp housing. The dust removal roller is fixedly sleeved on the rotating rod, and the brush bristles are arranged on the surface of the dust removal roller. The suction pipe is fixed inside the lamp housing and has several suction holes, each of which is positioned directly opposite the dust removal roller. The suction pipe is connected to the dust collection box via a pipe, and the rotating rod is connected to the rotating shaft via a transmission component.

5. The environmentally friendly subway tunnel lighting equipment according to claim 4, characterized in that, The transmission component adopts a belt drive transmission method.

6. The environmentally friendly subway tunnel lighting equipment according to claim 1, characterized in that, The flow-limiting directions of the two one-way valves located on the same strip-shaped airbag are opposite.

7. The environmentally friendly subway tunnel lighting equipment according to claim 4, characterized in that, The lamp housing is equipped with a heat dissipation structure, which includes a mounting cylinder, two rotating plates, a mesh cylinder, an air guide shroud, an exhaust fan, an air duct, and a shaft. The mounting cylinder is fixed to the side of the lamp housing and has an assembly opening. The two rotating plates are arranged inside the mounting cylinder, and the mesh cylinder is fixed between the two rotating plates. The two rotating plates and the mesh cylinder together form a gas drying zone containing a desiccant. The air guide shroud is fixed inside the assembly opening, and the exhaust fan is installed at the end of the air guide shroud away from the mounting cylinder. The end of the mounting cylinder away from the lamp housing has a hole, and the shaft is rotatably assembled into the hole. One end of the shaft is fixedly connected to one of the rotating plates, and the other end of the shaft is located outside the mounting cylinder and is fixedly fitted with a third gear. Above the third gear is a fourth gear that meshes with it, and the fourth gear is fixedly fitted at the end of the rotating shaft away from the transmission component. One end of the air duct is connected to the mounting cylinder, and the other end is connected to the air inlet shroud.

8. The environmentally friendly subway tunnel lighting equipment according to claim 7, characterized in that, The air guide shroud is located inside the mounting cylinder at one end, directly opposite the mesh cylinder.

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