Environment-friendly lighting equipment for subway tunnel

Abstract

The invention relates to the technical field of tunnel lighting, and discloses environment-friendly subway tunnel lighting equipment which comprises a lighting unit, a rotating unit, a dust cleaning unit and a dust collecting unit. Wherein the lighting unit comprises a lamp shell, two fixing plates and a lamp tube, the two fixing plates are both fixed on the lamp shell, the lamp tube is made of a light-transmitting material, the lamp tube is rotatably assembled between the two fixing plates, the two fixing plates and the lamp tube jointly form a lighting space, and a lighting module composed of a light source and a control circuit is arranged in the lighting space. And a temperature sensor is mounted on the control circuit. The motor drives the rotating shaft and the dust removal roller to rotate, the function of automatically cleaning the surface of the lamp barrel is achieved, the bristles on the dust removal roller can continuously brush the surface of the lamp barrel, dust is effectively removed, the lamp barrel is prevented from being covered with the dust, and therefore the light transmission and the lighting effect of the lamp barrel are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel lighting, and in particular to an environmentally friendly lighting device for a subway tunnel. Background Art

[0002] Subway tunnel lighting equipment is an important component to ensure 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 operations and emergency evacuation.

[0003] After searching, the Chinese patent with announcement number CN220601410U discloses an adjustable tunnel lighting device, including a connecting plate, connecting brackets are arranged on both the front and rear sides of the bottom of the connecting plate, a lighting device body is arranged between the two connecting brackets, an adjustment component is arranged at the bottom of the connecting plate, which is located between the two connecting brackets and hinged to the top of the lighting device body, and a cleaning brush plate is arranged at the bottom of the lighting device body. The above scheme provides a driving component to energize the micro electric push rod so that it drives the rack plate to move back and forth. With the coordinated use of the rack plate, the gear, the connecting shaft and the circular shaft, the cleaning brush plate moves back and forth to clean the dust adhering to the surface of the protective glass to avoid affecting its lighting effect. There is no need for staff to clean it later, which reduces the labor intensity of the staff and further improves the practicality of the device. However, the above scheme still has the following shortcomings when it is actually used:

[0004] The above scheme utilizes the cleaning brush plate to move back and forth to clean the dust adhered to the surface of the protective glass. Although the cleaning brush plate can effectively remove the dust adhered to the surface of the protective glass and ensure the light transmittance and lighting effect of the lampshade during the reciprocating movement of the cleaning brush plate, the movement process itself will also block the light, thereby affecting the lighting effect of the lamp. This blocking effect will cause the lighting light to fluctuate or be discontinuous, especially when the cleaning brush plate moves at a high frequency or has a large movement range, which may cause changes in the brightness of the light in the tunnel, affecting the visual comfort of the train driver 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 continuously provide a stable lighting environment, especially in key areas that require high-brightness lighting, such as tunnel entrances, curves or emergency evacuation passages. This disadvantage may be further amplified.

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

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an environmentally friendly subway tunnel lighting device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An environmentally friendly subway tunnel lighting device comprises a lighting unit, a rotating unit, a dust cleaning unit and a dust collecting unit;

[0009] Wherein, the lighting unit comprises a lamp housing, two fixing plates and a lamp tube, the two fixing plates are fixed on the lamp housing, the lamp tube is made of a light-transmitting material, the lamp tube is rotatably assembled 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 arranged in the lighting space, and a temperature sensor is installed on the control circuit;

[0010] Wherein, the rotating unit is arranged inside the lamp housing and is used to drive the lamp tube to rotate;

[0011] Wherein, the dust cleaning unit is arranged inside the lamp housing and is used to clean the dust on the surface of the lamp tube;

[0012] The dust collection unit is arranged inside the lamp housing for collecting dust. The dust collection unit is composed of a driving component, two air suction components and a dust collection box. The dust collection box has a built-in filter element.

[0013] As a preferred technical solution of the present invention, the lighting unit also includes two fixing rings, two air vents, a dustproof net and an air intake hood. The two fixing rings are respectively fixed on the opposite sides of the two fixing plates, and the two ends of the lamp tube are respectively mounted on the two fixing rings. The outer peripheral surface of each fixing ring is fitted with the inner surface of the lamp tube. The two air vents are respectively opened on the two fixing plates, the dustproof net is arranged in one of the air vents, and the air intake hood is fixed in the other air vent. The two air vents are arranged opposite to each other.

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

[0015] As a preferred technical solution of the present invention, the cleaning unit includes a rotating rod, a cleaning roller, bristles and a dust suction pipe. The rotating rod is rotatably assembled on the lamp housing, and one end of the rotating rod extends to the outside of the lamp housing. The cleaning roller is fixedly sleeved on the rotating rod, and the bristles are arranged on the surface of the cleaning roller. The dust suction pipe is fixed to the inside of the lamp housing. A plurality of dust suction holes are opened on the dust suction pipe, and each of the dust suction holes is arranged opposite to the cleaning roller. The dust suction pipe is connected to the dust collecting box through a pipeline, and the rotating rod and the rotating shaft are connected through a transmission member.

[0016] As a preferred technical solution of the present invention, the transmission member adopts a belt drive transmission method.

[0017] As a preferred technical solution of the present invention, the driving 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 respectively rotatably assembled on the two bearing seats, one end of the reciprocating screw is connected to the output shaft of the motor, the movable plate is threadedly sleeved on the reciprocating screw, and the movable plate is slidably sleeved on the guide rod.

[0018] As a preferred technical solution of the present invention, the air suction assembly includes a strip air bag, two mounting tubes and two one-way valves, one end of the strip air bag is connected to one of the bearing seats, and the other end is connected to the movable plate, one end of the two mounting tubes are connected to the strip air bag, the two one-way valves are respectively installed on the two mounting tubes, and one end of one of the mounting tubes away from the strip air bag is connected to the dust collection box.

[0019] As a preferred technical solution 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 technical solution of the present invention, a heat dissipation structure is provided on the lamp housing, and the heat dissipation structure includes a mounting tube, two rotating plates, a mesh tube, an air guide cover, an induced draft fan, an air guide pipe and a shaft rod. The mounting tube is fixed to the side of the lamp housing, and an assembly port is provided on the mounting tube. The two rotating plates are arranged inside the mounting tube, and the mesh tube is fixed between the two rotating plates. The two rotating plates and the mesh tube jointly form a gas drying area, and a desiccant is stored in the gas drying area. The air guide cover is fixed in the assembly port, and the induced draft fan is installed at one end of the air guide cover away from the mounting tube. A hole is provided at one end of the mounting tube away from the lamp housing, and the shaft rod is rotatably assembled in the hole. One end of the shaft rod is fixedly connected to one of the rotating plates, and the other end of the shaft rod is located outside the mounting tube and fixedly sleeved with a third gear. A fourth gear meshing with the third gear is arranged above the third gear, and the fourth gear is fixedly sleeved at one end of the rotating shaft away from the transmission member. One end of the air guide pipe is connected to the mounting tube, and the other end is connected to the air inlet cover.

[0021] As a preferred technical solution of the present invention, one end of the air guide cover located inside the installation cylinder is arranged directly opposite to the mesh cylinder.

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

[0023] 1. The motor drives the rotating shaft and the cleaning roller to rotate, realizing the automatic cleaning function of the lamp tube surface. The bristles on the cleaning roller can continuously brush the surface of the lamp tube, effectively remove dust, and prevent 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 flickering of the lamp, and ensure the stability and continuity of the lighting effect;

[0024] 2. Through the synergistic effect of the reciprocating screw, the strip airbag and the suction component, the solution realizes the function of collecting dust on the surface of the lamp tube. The dust removed by the cleaning roller is absorbed by the dust suction hole and intercepted and collected by the filter element in the dust collection box, effectively avoiding the secondary pollution of the dust to the lamp tube. This design not only improves the cleaning efficiency, but also reduces the diffusion of dust in the tunnel and improves the air quality in the tunnel;

[0025] 3. Through the design of the induced draft fan and air duct, active heat dissipation of the heat inside the lamp tube is achieved. When the temperature sensor detects that the temperature inside the lamp tube is too high, the induced draft fan starts to introduce external air into the lamp tube to take away the heat and avoid damage to the lighting module 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. In response to the problem of high humidity inside the tunnel, the present invention is designed with an air dehumidification function. The induced draft fan guides the air into the wind guide cover. After the desiccant in the mesh tube absorbs moisture, the dry air enters the interior of the lamp tube. This design not only effectively reduces the humidity inside the lamp tube and avoids damage to the lighting module by humid air, but also fully turns the desiccant through the rotation of the mesh tube to prevent the desiccant from agglomerating, thereby ensuring a continuous dehumidification effect. This function is particularly important in a humid tunnel environment and can significantly improve the durability and stability of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an environmentally friendly subway tunnel lighting device proposed by the present invention;

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

[0029] Figure 3 This is a schematic cross-sectional view of an environmentally friendly subway tunnel lighting device proposed by the present invention;

[0030] Figure 4 is a schematic diagram of the cross-sectional structure of the lamp housing;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of two mounting plates and a lamp tube;

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the installation tube;

[0033] Figure 7 It is a schematic diagram of the structure of the driving component and two air suction components;

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

[0035] Fig. 9 for Figure 7 A magnified view of the structure at B;

[0036] Fig.10 It is a schematic diagram of the cross-sectional structure of the dust collecting box.

[0037] In the figure: 11, lamp housing; 12, fixing plate; 13, fixing ring; 14, lamp tube; 15, dust net; 16, air intake cover; 17, temperature sensor; 21, rotating shaft; 22, rotating wheel; 23, motor; 24, first gear; 25, second gear; 31, mounting tube; 32, rotating plate; 33, mesh tube; 34, wind guide cover; 35, induced draft fan; 36, air guide pipe; 37, shaft; 38, third gear; 39, fourth gear; 41, rotating rod; 42, dust cleaning roller; 43, brush; 44, transmission part; 45, dust suction pipe; 46, dust suction hole; 51, bearing seat; 52, guide rod; 53, reciprocating screw rod; 54, moving plate; 55, strip air bag; 56, mounting tube; 57, one-way valve; 58, dust collection box. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Reference Figure 1-10 An environmentally friendly subway tunnel lighting device includes a lighting unit, a rotating unit, a dust cleaning unit and a dust collecting 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 on the lamp housing 11. The lamp tube 14 is made of a light-transmitting material. The lamp tube 14 is rotatably assembled 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 arranged in the lighting space. A temperature sensor is installed on the control circuit. 17. The lighting unit also includes two fixing rings 13, two air vents, a dust-proof net 15 and an air inlet cover 16. The two fixing rings 13 are respectively fixed on the opposite sides of the two fixing plates 12. Both ends of the lamp tube 14 are respectively mounted on the two fixing rings 13. The outer peripheral surface of each fixing ring 13 is fitted with the inner surface of the lamp tube 14. The two air vents are respectively opened on the two fixing plates 12. The dust-proof net 15 is arranged in one of the air vents. The air inlet cover 16 is fixed in the other air vent. The two air vents are arranged opposite to each other.

[0040] The rotating unit is arranged 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 in the lamp housing 11. 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. Each rotating wheel 22 contacts 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. A second gear 25 is fixedly sleeved on the output shaft of the motor 23. The first gear 24 and the second gear 25 are meshed with each other. When the motor 23 is running, the rotating shaft 21 can be driven to rotate through the first gear 24 and the second gear 25 that are meshed with each other. When the rotating shaft 21 rotates, the two rotating wheels 22 thereon rotate accordingly. During the rotation process, 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 member 44. When the rotating rod 41 rotates, it will drive the cleaning roller 42 to rotate.

[0041] The dust cleaning unit is arranged inside the lamp housing 11 and is used to clean the dust on the surface of the lamp tube 14. The dust cleaning unit includes a rotating rod 41, a dust cleaning roller 42, bristles 43 and a dust suction pipe 45. The rotating rod 41 is rotatably assembled on the lamp housing 11, and one end of the rotating rod 41 extends to the outside of the lamp housing 11. The dust cleaning roller 42 is fixedly sleeved on the rotating rod 41, and the bristles 43 are arranged on the surface of the dust cleaning roller 42. The dust suction pipe 45 is fixed inside the lamp housing 11, and a plurality of dust suction holes 46 are opened on the dust suction pipe 45, each of which is used to suck dust. The dust holes 46 are all arranged opposite to the cleaning roller 42, the dust suction pipe 45 is connected to the dust collecting box 58 through a pipeline, the rotating rod 41 and the rotating shaft 21 are connected through a transmission member 44, and the transmission member 44 adopts a belt drive. The bristles 43 on the cleaning roller 42 can continuously brush the surface of the lamp tube 14 and brush off the dust on the surface of the lamp tube 14, thereby 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] A dust collection unit is arranged inside the lamp housing 11 for collecting dust. The dust collection unit is composed of a driving component, two suction components and a dust box 58. The dust box 58 has a built-in filter element. The driving component includes two bearing seats 51, a guide rod 52, a reciprocating screw rod 53 and a movable 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 rod 53 are respectively rotatably assembled on the two bearing seats 51. One end of the reciprocating screw rod 53 is connected to the output shaft of the motor 23. The movable plate 54 is threadedly sleeved on the reciprocating screw rod 53, and the movable plate 54 is slidably sleeved on the guide rod 52. The suction assembly includes a strip airbag 55, two mounting tubes 56 and two one-way valves 57. The two one-way valves 57 on the same strip airbag 55 have opposite flow limiting directions. One end of the strip airbag 55 is connected to one of the bearing seats 51, and the other end is connected to the moving plate 54. One end of the two mounting tubes 56 is connected to the strip airbag 55. The two one-way valves 57 are respectively installed on the two mounting tubes 56. One end of one of the mounting tubes 56 away from the strip airbag 55 is connected to the dust collecting box 58. When the moving plate 54 stretches the strip airbag When the airbag 55 is in place, the strip airbag 55 can draw air from the inside of the dust suction tube 45 through the pipeline, which enables the several dust suction holes 46 on the dust suction tube 45 to perform a suction action. The dust on the surface of the lamp tube 14 brushed off by the bristles 43 will be absorbed by the several dust suction holes 46 and enter the dust collecting box 58 under the suction action of the strip airbag 55. The dust collecting 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 to prevent the dust from causing secondary pollution to the lamp tube 14.

[0043] A heat dissipation structure is provided on the lamp housing 11, and the heat dissipation structure includes a mounting tube 31, two rotating plates 32, a mesh tube 33, an air guide cover 34, an air induced fan 35, an air guide pipe 36 and a shaft 37. The mounting tube 31 is fixed to the side of the lamp housing 11, and an assembly port is opened on the mounting tube 31. The two rotating plates 32 are arranged inside the mounting tube 31, and the mesh tube 33 is fixed between the two rotating plates 32. The two rotating plates 32 and the mesh tube 33 together form a gas drying area, and a desiccant is stored in the gas drying area. The wind guide cover 34 is fixed in the assembly port, and one end of the wind guide cover 34 located inside the mounting tube 31 is arranged opposite to the mesh tube 33. The induced draft fan 35 is installed at the end of the wind guide cover 34 away from the mounting tube 31. The end of the mounting tube 31 away from the lamp housing 11 is provided with a hole. The shaft rod 37 is rotatably assembled in the hole. One end of the shaft rod 37 is fixedly connected to one of the rotating plates 32. The other end of the shaft rod 37 is located outside the mounting tube 31 and is fixedly sleeved with a third gear 38. A fourth gear 39 meshing with the third gear 38 is arranged above the third gear 38. The fourth gear 39 is fixedly sleeved. Located at one end of the rotating shaft 21 away from the transmission member 44, one end of the air duct 36 is connected to the mounting tube 31, and the other end is connected to the air intake hood 16. When the induced draft fan 35 is in operation, it can draw air inside the tunnel, allowing the gas to enter the air intake hood 16 through the air duct 36. Under the action of the induced draft 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, the heat inside the lamp tube 14 can be brought out, which has the effect of actively dissipating the heat of the lamp tube 14 and avoiding heat damage to the lighting module caused by the heat.

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

[0045] The subway tunnel lighting equipment proposed in the present invention has the function of automatically cleaning the lamp tube 14. The lighting module inside the lamp tube 14 will generate heat during operation. The accumulation of heat will gradually increase the temperature inside the lamp tube 14. 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 can drive the rotating shaft 21 to rotate through the first gear 24 and the second gear 25 that mesh with each other. When the rotating shaft 21 rotates, the two rotating wheels 22 thereon rotate accordingly. During the rotation process, 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 member 44. When the rotating rod 41 rotates, it will drive the dust cleaning roller 42 to rotate. Therefore, under the linkage action of the transmission member 44, the rotation actions of the rotating rod 41 and the dust cleaning roller 42 are synchronized. During this process, the bristles 43 on the cleaning roller 42 can continuously brush the surface of the lamp tube 14 and remove the dust on the surface of the lamp tube 14, so as to clean 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 in which the cleaning plate moves back and forth, this special cleaning method will not cause the phenomenon of blocking the light source. On the basis of ensuring the cleaning effect of the lamp, it can also ensure the lighting effect of the lamp and avoid the flickering phenomenon of the lamp.

[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 movable plate 54 to move back and forth along the guide rod 52 when it rotates. In this process, the movable plate 54 will periodically squeeze and stretch the two strip air bags 55, so that the two suction components can operate alternately. For the suction component, two mounting tubes 56 are connected to the strip air bags 55, and both mounting tubes 56 are equipped with one-way valves 57, and the flow limiting directions of the two one-way valves 57 are opposite. Specifically, one of the one-way valves 57 limits the gas to only enter the inside of the strip air bags 55, and the other one-way valve 57 limits the gas to only flow out of the strip air bags 55. Therefore, when the strip air bags 55 are stretched, the strip air bags 55 can perform a pumping action, and when the strip air bags 55 are compressed, the gas inside the strip air bags 55 will be pressed out. Based on the above process, when the movable plate 54 stretches the strip air bag 55, the strip air bag 55 can draw air from the inside of the dust suction tube 45 through the pipeline, which makes the several dust suction holes 46 on the dust suction tube 45 perform suction action. The dust on the surface of the lamp tube 14 brushed off by the bristles 43 will be absorbed by the several dust suction holes 46 and enter the dust collecting box 58 under the suction action of the strip air bag 55. The dust collecting 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 to prevent the dust from causing secondary pollution to the lamp tube 14.

[0048] It is worth mentioning that suction components are provided on both sides of the movable plate 54. When the movable plate 54 squeezes one of the strip air bags 55, the movable plate 54 will stretch the other strip air bag 55 at the same time. That is, in the process of movement of the movable plate 54, the two strip air bags 55 will be squeezed and stretched alternately, which makes the two suction components operate alternately. When one of the suction components performs the suction action, the other suction component performs the exhaust action. By providing two suction components, the dust suction action of the dust suction pipe 45 can be ensured to be continuous, avoiding the window period of the suction action, thereby ensuring the dust absorption effect of the device.

[0049] The subway tunnel lighting equipment proposed in the present invention also has the function of active heat dissipation. When the temperature sensor 17 is triggered, the temperature sensor 17 will also send a control signal to the induced draft fan 35 to power it on and operate. When the induced draft fan 35 is in operation, it can draw air inside the tunnel, allowing the gas to enter the air inlet hood 16 through the air duct 36. Under the action of the induced draft fan 35, the gas will flow out through the air inlet 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 bring out the heat inside the lamp tube 14, which has the effect of actively dissipating heat for the lamp tube 14, thereby preventing the heat from causing thermal damage to the lighting module. In addition, it should be noted that tunnels are usually located underground or inside a mountain, and the surrounding soil and rocks contain a large amount of moisture. This moisture will penetrate into the tunnel through the tiny gaps in the tunnel wall, increasing the humidity in the air. Secondly, the tunnel is a relatively closed space with limited ventilation conditions. It is difficult for dry air from the outside to enter, and it is difficult for humid air from the inside to be discharged, resulting in moisture accumulation in the tunnel. Therefore, the air humidity inside the tunnel is relatively high. In order to prevent moisture in the air from damaging the lighting module, the present invention is designed to dehumidify the air entering the lamp tube 14. Specifically, when the induced draft fan 35 is running, it can introduce air into the wind guide cover 34. Under the guidance of the wind guide cover 34, the gas will flow through the mesh tube 33. Desiccant is stored inside the mesh tube 33. In this process, the desiccant can absorb moisture mixed in the air. Further, the gas will flow out through the air guide pipe 36 and enter the air inlet cover 16. This design can dry and dehumidify the air entering the lamp tube 14. On the basis of ensuring the heat dissipation effect of the lamp, it can also prevent humid air from damaging the lamp.

[0050] In addition, the rotating shaft 21 can also drive the shaft 37 to rotate through the third gear 38 and the fourth gear 39 while rotating. When the shaft 37 rotates, it will drive the corresponding rotating plate 32 to rotate, which makes the net cylinder 33 rotate accordingly. During the rotation of the net cylinder 33, the desiccant inside the net cylinder 33 will flip accordingly. This phenomenon can prevent the desiccant from being stationary for a long time, so that the air can fully contact the desiccant. The flipping action of the desiccant can not only prevent the desiccant from caking, but also ensure the drying effect for the air. When the staff performs daily maintenance on the lamp, they can replace the desiccant regularly.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An environmentally friendly subway tunnel lighting device, characterized in that: It includes a lighting unit, a rotating unit, a dust cleaning unit and a dust collecting unit; The lighting unit comprises a lamp housing (11), two fixing plates (12) and a lamp tube (14); the two fixing plates (12) are fixed on the lamp housing (11); the lamp tube (14) is made of a light-transmitting material; the lamp tube (14) 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 composed of a light source and a control circuit is arranged in the lighting space; a temperature sensor (17) is installed on the control circuit; The rotating unit is arranged inside the lamp housing (11) and is used to drive the lamp tube (14) to rotate; The dust cleaning unit is arranged inside the lamp housing (11) and is used to clean dust on the surface of the lamp tube (14); The dust collection unit is arranged inside the lamp housing (11) and is used to collect dust. The dust collection unit is composed of a driving component, two air suction components and a dust collection box (58). The dust collection box (58) has a built-in filter element.

2. The environmentally friendly subway tunnel lighting device according to claim 1, characterized in that: The lighting unit also includes two fixing rings (13), two air vents, a dustproof net (15) and an air intake cover (16). The two fixing rings (13) are respectively fixed on opposite sides of the two fixing plates (12). The two ends of the lamp tube (14) are respectively mounted on the two fixing rings (13). The outer peripheral surface of each fixing ring (13) is mutually fitted with the inner surface of the lamp tube (14). The two air vents are respectively opened on the two fixing plates (12). The dustproof net (15) is arranged in one of the air vents. The air intake cover (16) is fixed in the other air vent. The two air vents are arranged opposite to each other.

3. The environmentally friendly subway tunnel lighting device according to claim 2, characterized in that: The rotating unit comprises a rotating shaft (21), two rotating wheels (22) and a motor (23); the rotating shaft (21) is rotatably mounted in the lamp housing (11); 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); each of the rotating wheels (22) is in contact with the surface of the lamp tube (14); the motor (23) is mounted inside the lamp housing (11); a first gear (24) is fixedly sleeved on the rotating shaft (21); a second gear (25) is fixedly sleeved on the output shaft of the motor (23); the first gear (24) and the second gear (25) are meshed with each other.

4. The environmentally friendly subway tunnel lighting device according to claim 3, characterized in that: The dust cleaning unit comprises a rotating rod (41), a dust cleaning roller (42), bristles (43) and a dust 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 cleaning roller (42) is fixedly sleeved on the rotating rod (41); the bristles (43) are arranged on the surface of the dust cleaning roller (42); the dust suction pipe (45) is fixed inside the lamp housing (11); a plurality of dust suction holes (46) are opened on the dust suction pipe (45); each of the dust suction holes (46) is arranged facing the dust cleaning roller (42); the dust suction pipe (45) is connected to the dust collecting box (58) through a pipeline; the rotating rod (41) and the rotating shaft (21) are connected through a transmission member (44).

5. The environmentally friendly subway tunnel lighting device according to claim 4, characterized in that: The transmission member (44) adopts a belt transmission mode.

6. The environmentally friendly subway tunnel lighting device according to claim 1, characterized in that: The driving assembly comprises two bearing seats (51), a guide rod (52), a reciprocating screw rod (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 rod (53) are rotatably assembled on the two bearing seats (51) respectively; one end of the reciprocating screw rod (53) is connected to the output shaft of the motor (23); the moving plate (54) is threadedly sleeved on the reciprocating screw rod (53), and the moving plate (54) is slidably sleeved on the guide rod (52).

7. The environmentally friendly subway tunnel lighting device according to claim 6, characterized in that: The air suction component comprises a strip air bag (55), two mounting tubes (56) and two one-way valves (57); one end of the strip air bag (55) is connected to one of the bearing seats (51), and the other end is connected to the movable plate (54); one end of the two mounting tubes (56) is connected to the strip air bag (55); the two one-way valves (57) are respectively mounted on the two mounting tubes (56); one end of one of the mounting tubes (56) away from the strip air bag (55) is connected to the dust collecting box (58).

8. The environmentally friendly subway tunnel lighting device according to claim 7, characterized in that: The two one-way valves (57) located on the same strip-shaped air bag (55) have opposite flow limiting directions.

9. The environmentally friendly subway tunnel lighting device according to claim 4, characterized in that: The lamp housing (11) is provided with a heat dissipation structure, the heat dissipation structure comprising a mounting tube (31), two rotating plates (32), a net tube (33), an air guide cover (34), an air induced fan (35), an air guide pipe (36) and a shaft (37); the mounting tube (31) is fixed to the side of the lamp housing (11); an assembly opening is provided on the mounting tube (31); the two rotating plates (32) are arranged inside the mounting tube (31); the net tube (33) is fixed between the two rotating plates (32); the two rotating plates (32) and the net tube (33) jointly form a gas drying area; a desiccant is stored in the gas drying area; the air guide cover (34) is fixed in the assembly opening; the air induced fan (35) The shaft (37) is mounted on an end of the wind guide cover (34) away from the mounting tube (31); a hole is formed on an end of the mounting tube (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 tube (31) and is fixedly sleeved with a third gear (38); a fourth gear (39) meshing with the third gear (38) is arranged above the third gear (38); the fourth gear (39) is fixedly sleeved on an end of the rotating shaft (21) away from the transmission member (44); one end of the air guide pipe (36) is connected to the mounting tube (31); and the other end is connected to the air inlet cover (16).

10. The environmentally friendly subway tunnel lighting device according to claim 9, characterized in that: One end of the air guide cover (34) located inside the installation cylinder (31) is arranged directly opposite to the net cylinder (33).

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