Lighting device with dust removal function for tunnel construction
By designing a dust removal system that sprays cleaning liquid and drives the glass plate to rotate quickly in the tunnel construction lighting device, the dust adsorption problem caused by static electricity and moisture is solved, and better lighting effect and extended glass plate life are achieved.
Patent Information
- Application Number
- CN202510270255.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-05-30
AI Technical Summary
During tunnel construction, the lighting device is absorbed by dust due to static electricity and moisture, which affects the lighting effect.
Design a lighting device with dust removal function for tunnel construction, including an electric fan, glass plate, nozzle and suction head. By spraying cleaning liquid and driving the glass plate to rotate quickly, the cleaning liquid will bring the dust off the surface of the glass plate, and at the same time use the heat sink and the heat dissipation frame to improve the cooling effect.
Effectively remove dust and water vapor from the surface of the glass plate, improve the lighting effect of the lighting device, and extend the service life of the glass plate.
Smart Images

Figure CN120062584A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of lamps, and in particular to a lighting device with a dust removal function for tunnel construction. Background Art
[0002] When excavation construction operations are carried out inside a tunnel, due to the relatively dim internal light, a large number of high-power lighting devices need to be placed for the convenience of construction workers to observe. When the existing lighting devices are performing lighting work, in the construction environment, the dust particles in the air carry static electricity. During the long-term operation of the lighting device, static electricity is generated due to temperature changes, resulting in dust being adsorbed on the surface of the device. This affects the lighting effect of the lighting device. Moreover, when constructing inside the tunnel, water mist is sprayed for dust reduction work, resulting in a relatively humid environment inside the tunnel. After the moisture combines with the dust, it will adhere to the surface of the lighting device, further affecting the lighting effect of the lighting device. Summary of the Invention
[0003] In order to overcome the drawback that in the construction environment, the dust particles in the air carry static electricity. During the long-term operation of the lighting device, static electricity is generated due to temperature changes, resulting in dust being adsorbed on the surface of the device. This affects the lighting effect of the lighting device, the present invention provides a lighting device with a dust removal function for tunnel construction.
[0004] Technical Solution: A lighting device with a dust removal function for tunnel construction includes a connecting frame; a first connecting end and a second connecting end are provided on the connecting frame; it further includes a first motor, an outer frame, a lamp board, a heat sink, an electric fan, a glass plate, a second motor, a liquid storage tank, an electric push rod, a piston, a spray pipe, a connecting pipe, a suction head, a filter screen, and a drain pipe; the connecting frame is fixedly connected with the first motor; the rotating part of the first motor is connected with the outer frame; an air outlet is opened on the outer frame, and a filter screen is provided at the air outlet, and a water collecting groove is provided on the outer frame; the outer frame is fixedly connected with the lamp board; the heat sink is fixedly connected to the lamp board; an electric fan is arranged inside the outer frame; the second motor is fixedly connected to the lamp board; the rotating part of the second motor penetrates through the lamp board and is connected with the glass plate; a convex ring is provided on the glass plate, and the convex ring is fitted with the outer frame; the liquid storage tank is fixedly connected to the connecting frame; the electric push rod is fixedly connected to the liquid storage tank; the telescopic part of the electric push rod penetrates into the liquid storage tank and is fixedly connected with the piston, and the piston is slidably connected with the liquid storage tank; the spray pipe is fixedly connected to the outer frame; the spray pipe is fixedly connected and communicated with the connecting pipe, and the connecting pipe penetrates into the liquid storage tank; the connecting pipe is fixedly connected and communicated with the suction head, and the suction head is located inside the liquid storage tank; a drain pipe is fixedly connected to the bottom of the outer frame, and the drain pipe is communicated with the water collecting groove.
[0005] Optionally, a drainage groove is opened on the outer frame.
[0006] Optionally, a permanent magnet is arranged inside the suction head, and the piston is made of a magnetizable material.
[0007] Optionally, it further includes a sealing ring; the sealing ring is fixedly connected inside the outer frame, and the sealing ring is located between the lamp board and the glass plate.
[0008] Optionally, a plurality of heat dissipation holes are provided on the heat sink.
[0009] Optionally, a heat dissipation frame is further included; a heat dissipation frame is fixedly connected to the side of the lamp board away from the glass plate, and the heat dissipation frame is in the shape of a triangular pyramid.
[0010] Optionally, a reverse blowing fan, an annular electric guide rail, a slider, a connection frame, a filter plate and a wedge block are further included; an annular electric guide rail is fixedly connected inside the outer frame; a plurality of sliders are slidably connected to the annular electric guide rail; one of the sliders is fixedly connected to the electric fan, and another slider is fixedly connected to the reverse blowing fan, and the electric fan and the reverse blowing fan are fixedly connected to each other; a filter plate is connected to the right side of the outer frame; a connection frame is fixedly connected to the side of the filter plate facing the electric fan, the connection frame is attached to the electric fan, and the electric fan and the reverse blowing fan are of the same size; a plurality of wedge blocks are fixedly connected between the two electric fans.
[0011] Optionally, the edge of the connection frame is provided with rounded corners.
[0012] Optionally, a spring plate is further included; a plurality of spring plates are fixedly connected to the inner side of the outer frame, and all the spring plates are fixedly connected to the filter plate.
[0013] Optionally, a baffle is further included; a baffle is fixedly connected to the outer frame.
[0014] The beneficial effects of the present invention are as follows: By controlling the electric push rod to push the piston to squeeze the cleaning liquid in the liquid storage tank, the cleaning liquid is ejected onto the surface of the glass plate, and then controlling the second motor to drive the glass plate to rotate rapidly, the cleaning liquid is thrown out into the water collecting tank, so that the cleaning liquid takes the dust away from the surface of the glass plate, and the dust adhered to the surface of the glass plate is cleaned.
[0015] In the present invention, heat dissipation holes are provided on the heat sink, so that the air blown by the electric fan is transmitted to the adjacent heat sinks through the heat dissipation holes, improving the cooling effect. In addition, a heat dissipation frame is provided. When the air blown by the electric fan blows onto the heat dissipation frame, the air is separated into two parts by the heat dissipation frame. One part blows upward and is discharged from the air outlet, and the other part blows downward, so that the air blows more heat sinks for cooling, improving the cooling effect.
[0016] In the present invention, during the process that the slider drives the electric fan and the reverse blowing fan to rotate 180 degrees along the annular electric guide rail, the electric fan and the reverse blowing fan drive the wedge block to rotate synchronously, so that the wedge block gradually pushes the connection frame towards the filter plate. When the connection frame separates from the highest point of the wedge block, the spring plate loses the supporting force and quickly resets, so that the filter plate impacts on the outer frame, thereby shaking off the dust adhered tightly to the surface of the filter plate. Description of the Drawings
[0017] Figure 1The first structural schematic diagram disclosed for the lighting device with dust removal function used in tunnel construction of the present invention;
[0018] Figure 2 The second structural schematic diagram disclosed for the lighting device with dust removal function used in tunnel construction of the present invention;
[0019] Figure 3 The structural sectional view of the outer frame and the liquid storage tank disclosed for the lighting device with dust removal function used in tunnel construction of the present invention;
[0020] Figure 4 The structural schematic diagram of the water collecting tank and the drainage groove on the outer frame disclosed for the lighting device with dust removal function used in tunnel construction of the present invention;
[0021] Figure 5 The structural schematic diagram of the heat sink and the heat dissipation frame disclosed for the lighting device with dust removal function used in tunnel construction of the present invention;
[0022] Figure 6 The structural schematic diagram of the slider, the connecting frame, the filter plate, the spring plate and the wedge block disclosed for the lighting device with dust removal function used in tunnel construction of the present invention;
[0023] Figure 7 The structural schematic diagram of the fillet on the connecting frame disclosed for the lighting device with dust removal function used in tunnel construction of the present invention;
[0024] Figure 8 The state diagram of the glass plate during the cleaning work of the lighting device with dust removal function used in tunnel construction of the present invention.
[0025] Marks in the attached drawings: 1 - connecting frame, 2 - motor one, 3 - outer frame, 4 - lamp board, 5 - heat sink, 6 - electric fan, 61 - back - blowing fan, 7 - glass plate, 8 - motor two, 9 - liquid storage tank, 10 - electric push rod, 11 - piston, 12 - spray pipe, 13 - connecting pipe, 14 - suction head, 15 - sealing ring, 16 - annular electric guide rail, 17 - slider, 18 - connecting frame, 19 - filter plate, 20 - spring plate, 21 - wedge block, 22 - baffle, 23 - heat dissipation frame, 222 - drain pipe, 101 - connecting end one, 102 - connecting end two, 310 - filter screen, 301 - air outlet, 302 - water collecting tank, 303 - drainage groove, 501 - heat dissipation hole, 701 - convex ring, 1801 - fillet. Detailed implementation manners
[0026] The following describes the implementation manners of the present invention with reference to the attached drawings.
[0027] Example 1
[0028] A lighting device with dust removal function used in tunnel construction, as Figures 1-7As shown in the figure, it includes a connecting frame 1; a first connecting end 101 and a second connecting end 102 are provided on the connecting frame 1;
[0029] It also includes a first motor 2, an outer frame 3, a lamp board 4, a heat sink 5, an electric fan 6, a glass plate 7, a second motor 8, a liquid storage tank 9, an electric push rod 10, a piston 11, a nozzle 12, a connecting pipe 13, a suction head 14, a filter screen 310 and a drain pipe 222; the connecting frame 1 is fixedly connected with the first motor 2; the rotating part of the first motor 2 is connected with the outer frame 3; an air outlet 301 is opened on the outer frame 3, and a filter screen 310 is arranged at the air outlet 301, and a water collecting tank 302 is arranged on the outer frame 3; the outer frame 3 is fixedly connected with the lamp board 4; the heat sink 5 is fixedly connected to the lamp board 4; an electric fan 6 is arranged inside the outer frame 3; the second motor 8 is bolted to the lamp board 4; the rotating part of the second motor 8 penetrates through the lamp board 4 and is connected with the glass plate 7; a convex ring 701 is arranged on the glass plate 7, and the convex ring 701 is fitted with the outer frame 3; the connecting frame 1 is bolted with a liquid storage tank 9; the electric push rod 10 is bolted to the liquid storage tank 9; the telescopic part of the electric push rod 10 penetrates through the liquid storage tank 9 and is fixedly connected with the piston 11, and the piston 11 is slidably connected with the liquid storage tank 9; the nozzle 12 is fixedly connected to the outer frame 3; the nozzle 12 is fixedly connected and communicated with the connecting pipe 13, and the connecting pipe 13 penetrates through the liquid storage tank 9; the connecting pipe 13 is fixedly connected and communicated with the suction head 14, and the suction head 14 is located inside the liquid storage tank 9; a drain pipe 222 is fixedly connected to the bottom of the outer frame 3, and the drain pipe 222 is communicated with the water collecting tank 302.
[0030] A drainage groove 303 is opened on the outer frame 3. When the cleaning liquid is thrown out by the rotating glass plate 7, part of the cleaning liquid will enter the drainage groove 303, so that the cleaning liquid flows downward from the drainage groove 303, accelerating the discharge efficiency of the cleaning liquid.
[0031] A permanent magnet is arranged inside the suction head 14, and the piston 11 is made of a magnetizable material. The piston 11 is adsorbed by the permanent magnet inside the suction head 14, so that the piston 11 keeps its original state when pushing the suction head 14 to move, and the suction state of the suction head 14 is kept stable.
[0032] It also includes a sealing ring 15; the sealing ring 15 is fixedly connected inside the outer frame 3, and the sealing ring 15 is located between the lamp board 4 and the glass plate 7.
[0033] A number of heat dissipation holes 501 are opened on the heat sink 5, so that the air blown by the electric fan 6 is transmitted to the adjacent heat sinks 5 through the heat dissipation holes 501, improving the cooling effect.
[0034] It also includes a heat dissipation frame 23; the heat dissipation frame 23 is fixedly connected to the side of the lamp board 4 away from the glass plate 7, and the heat dissipation frame 23 is in the shape of a triangular pyramid.
[0035] The working mode of the above embodiment is as follows:
[0036] Loading: Manually open the lid on the liquid storage tank 9 and pour the cleaning liquid into the liquid storage tank 9. Then close the lid. A rubber strip is set around the lid to ensure the sealing performance.
[0037] Before use: Manually install the connecting frame 1 at the position where it is needed, and control the second motor 8 to drive the outer frame 3 and the lamp panel 4 to rotate until the lamp panel 4 faces the construction position and then stop.
[0038] After the preparation work is completed, control the lamp panel 4 to light up to illuminate the working area in the tunnel. Considering that when the excavator conducts excavation work on the inner wall surface of the tunnel, a large amount of dust will be generated. When the dust drifts in the air, it will adhere to the glass plate 7, resulting in a weakened lighting effect of the lamp panel 4, affecting the construction workers' observation of the excavation situation. Moreover, whenever excavation work is carried out, water mist will be sprayed in the tunnel, causing the water mist to combine with the dust and harden on the surface of the glass plate 7, further weakening the lighting effect.
[0039] Therefore, after working for a period of time, first control the first motor 2 to drive the outer frame 3 to rotate clockwise by 45 degrees with the front-to-back view as the reference, as Figure 8 shown in the state. Then control the electric push rod 10 to push the piston 11 to squeeze the cleaning liquid in the liquid storage tank 9, so that the cleaning liquid enters the connecting pipe 13 through the suction head 14, and then sprays out from the spray pipe 12 onto the surface of the glass plate 7. At the same time, control the second motor 8 to drive the glass plate 7 to rotate slowly initially, so that the cleaning liquid completely covers the surface of the glass plate 7. Then control the second motor 8 to drive the glass plate 7 to rotate quickly, and throw the cleaning liquid out into the water collecting tank 302, so that the cleaning liquid takes the dust away from the surface of the glass plate 7. Repeat this process multiple times to clean the dust adhered to the surface of the glass plate 7 completely. The cleaned sewage is discharged from the drain pipe 222; when the first motor 2 drives the outer frame 3 to rotate clockwise by 45 degrees with the front-to-back view as the reference, the liquid storage tank 9 also becomes 45 degrees, and the cleaning liquid accumulates at the bottom of the liquid storage tank 9, so that when the cleaning liquid in the liquid storage tank 9 is less, the suction head 14 can still suck the cleaning liquid, reducing the waste of the cleaning liquid. Moreover, a permanent magnet is provided in the suction head 14, and the piston 11 is made of a magnetizable material. The piston 11 is adsorbed by the permanent magnet in the suction head 14, so that the piston 11 remains in its original state when pushing the suction head 14 to move, and the suction state of the suction head 14 is kept stable.
[0040] Considering that, due to the relatively dim light in the tunnel, the lamp panel 4 needs to work both during the day and at night, which leads to the surface temperature of the glass plate 7 remaining at a high temperature for a long time, affecting the lifespan of the glass plate 7. Although the electric fan 6 is controlled to drive the air to blow onto the heat sink 5 for cooling, the cooling effect is poor. Therefore, when the cleaning liquid is sprayed on the surface of the glass plate 7, it can also cool the surface of the glass plate 7, thereby improving the service life of the glass plate 7; heat dissipation holes 501 are provided on the heat sink 5, so that the air blown by the electric fan 6 is transmitted to the adjacent heat sink 5 through the heat dissipation holes 501, improving the cooling effect. And a heat dissipation frame 23 is also provided. When the air blown by the electric fan 6 blows onto the heat dissipation frame 23, the air is divided into two parts by the heat dissipation frame 23. One part blows upward and is discharged from the air outlet 301, and the other part blows downward, enabling the air to blow and cool more heat sinks 5, improving the cooling effect.
[0041] In view of the relatively high humidity in the tunnel and the fact that there is often water flowing on the outer surface of the glass plate 7, water vapor is likely to penetrate through the gap between the glass plate 7 and the outer frame 3, resulting in water droplets forming on the surface of the lamp panel 4 and affecting its service life. Therefore, a sealing ring 15 is provided between the lamp panel 4 and the glass plate 7 to isolate moisture, prevent water droplets from forming on the surface of the lamp panel 4, and ensure the lighting effect.
[0042] Embodiment 2
[0043] On the basis of Embodiment 1, as Figure 3 and Figures 5-7 shown, it further includes a reverse blowing fan 61, a circular electric guide rail 16, a slider 17, a connecting frame 18, a filter plate 19 and a wedge block 21; the circular electric guide rail 16 is fixedly connected inside the outer frame 3; two sliders 17 are slidably connected to the circular electric guide rail 16; one of the sliders 17 is fixedly connected to the electric fan 6, and the other slider 17 is fixedly connected to the reverse blowing fan 61, and the electric fan 6 and the reverse blowing fan 61 are fixedly connected to each other; a filter plate 19 is connected to the right side of the outer frame 3; a connecting frame 18 is fixedly connected to the side of the filter plate 19 facing the electric fan 6, the connecting frame 18 is in contact with the electric fan 6, and the electric fan 6 and the reverse blowing fan 61 are of the same size; two wedge blocks 21 are fixedly connected together between the two electric fans 6.
[0044] Rounded corners 1801 are provided at the edge of the connecting frame 18 to facilitate the wedge block 21 to lift the connecting frame 18.
[0045] It further includes a spring plate 20; two spring plates 20 are fixedly connected to the inner side of the outer frame 3, and all the spring plates 20 are fixedly connected to the filter plate 19.
[0046] It further includes a baffle 22; the baffle 22 is fixedly connected to the outer frame 3.
[0047] The working modes of the above embodiments are as follows:
[0048] It is considered that when the electric fan 6 sucks air, it will also blow the dust in the air into the outer frame 3, causing the dust to adhere to the heat sink 5 and affecting the heat dissipation effect. Therefore, by setting a filter plate 19 on the outer frame 3, the dust in the air is intercepted by the filter plate 19, thereby reducing the problem of dust entering the outer frame 3 and adhering to the surface of the heat sink 5; It is considered that when there is a lot of dust adhered to the surface of the filter plate 19, it will affect the air entering the outer frame 3, thereby affecting the heat dissipation effect. Therefore, when it is necessary to clean the filter plate 19, control the slider 17 to drive the electric fan 6 and the back-blow fan 61 to rotate 180 degrees along the annular electric guide rail 16, so that the back-blow fan 61 is aligned with the connecting frame 18. The blowing direction of the back-blow fan 61 is towards the connecting frame 18. Control the back-blow fan 61 to start, so that the back-blow fan 61 sucks the outside air into the outer frame 3 from the air outlet 301, and then blows it to the surface of the filter plate 19 through the connecting frame 18, so that the dust adhered to the surface of the filter plate 19 is blown away. By setting a fillet 1801 on the connecting frame 18, it is more convenient for the wedge block 21 to lift the connecting frame 18. And since the motor 1 drives the outer frame 3 to rotate 45 degrees clockwise with the front view as the reference, the filter plate 19 faces downwards, so that the blown dust also blows downwards, reducing the time for the dust to disperse in the air.
[0049] It is considered that when moisture combines with dust, it will adhere to the surface of the filter plate 19, resulting in the wind blown by the back-blow fan 61 not being strong enough to blow away the dust adhered to the surface of the filter plate 19, causing the dust to accumulate more and more, and blocking the filter plate 19. Therefore, during the process of the slider 17 driving the electric fan 6 and the back-blow fan 61 to rotate 180 degrees along the annular electric guide rail 16, the electric fan 6 and the back-blow fan 61 drive the wedge block 21 to rotate synchronously, so that the wedge block 21 gradually pushes the connecting frame 18 towards the filter plate 19, causing the filter plate 19 to pull the spring plate 20 to elongate. When the connecting frame 18 separates from the highest point of the wedge block 21, the spring plate 20 loses its supporting force, driving the filter plate 19 to quickly reset, causing the filter plate 19 to hit the outer frame 3, causing the filter plate 19 to have a violent impact, thereby shaking off the dust tightly adhered to the surface of the filter plate 19. At the same time, the connecting frame 18 is docked with the back-blow fan 61, avoiding the problem that the wind blown by the back-blow fan 61 is not strong enough to blow away the dust adhered to the surface of the filter plate 19, resulting in the need for long-term back-blowing, and then causing a lot of accumulation on the filter screen 310 at the air outlet 301. And a baffle 22 is provided on the outer frame 3, so that when the air blows out from the air outlet 301, it will blow to the surface of the baffle 22, guiding the air to the left, so that the dust floating towards the glass plate 7 is blown away, reducing the amount of dust adhering to the surface of the glass plate 7.
[0050] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims
1. A lighting device with dust removal function for tunnel construction, comprising a connecting frame (1); the connecting frame (1) is provided with a connecting end 1 (101) and a connecting end 2 (102); characterized in that: The invention also comprises a motor 1 (2), an outer frame (3), a lamp panel (4), a heat sink (5), an electric fan (6), a glass plate (7), a motor 2 (8), a liquid storage tank (9), an electric push rod (10), a piston (11), a nozzle (12), a connecting pipe (13), a suction head (14), a filter screen (310) and a drainage pipe (222); the connecting frame (1) is fixedly connected to the motor 1 (2); the rotating part of the motor 1 (2) is connected to the outer frame (3); an air outlet (301) is provided on the outer frame (3), and a filter screen (310) is provided at the air outlet (301); a water collecting tank (302) is provided on the outer frame (3); the lamp panel (4) is fixedly connected to the lamp panel (4); a heat sink (5) is fixedly connected to the lamp panel (4); an electric fan (6) is provided inside the outer frame (3); the motor 2 (8) is fixedly connected to the lamp panel (4); the motor 2 ( The rotating part of the connecting frame (8) passes through the lamp panel (4) and is connected to the glass plate (7); a convex ring (701) is provided on the glass plate (7), and the convex ring (701) is engaged with the outer frame (3); a liquid storage tank (9) is fixedly connected to the connecting frame (1); an electric push rod (10) is fixedly connected to the liquid storage tank (9); the telescopic part of the electric push rod (10) passes through the liquid storage tank (9) and is fixedly connected to a piston (11), and the piston (11) and the liquid storage tank (9) are fixedly connected. ) is slidably connected; a nozzle (12) is fixedly connected to the outer frame (3); the nozzle (12) is fixedly connected to and communicated with a connecting pipe (13), and the connecting pipe (13) passes through the liquid storage tank (9); the connecting pipe (13) is fixedly connected to and communicated with a suction head (14), and the suction head (14) is located in the liquid storage tank (9); a drainage pipe (222) is fixedly connected to the bottom of the outer frame (3), and the drainage pipe (222) is communicated with the water collection tank (302).
2. A lighting device with dust removal function for tunnel construction according to claim 1, characterized in that: The outer frame (3) is provided with a drainage groove (303).
3. The lighting device with dust removal function for tunnel construction according to claim 1, characterized in that: A permanent magnet is arranged inside the suction head (14), and the piston (11) is made of a magnetically attractive material.
4. A lighting device with dust removal function for tunnel construction according to any one of claims 1-2, characterized in that: It also includes a sealing ring (15); the sealing ring (15) is fixedly connected inside the outer frame (3), and the sealing ring (15) is located between the lamp board (4) and the glass board (7).
5. The lighting device with dust removal function for tunnel construction according to claim 1, characterized in that: A plurality of heat dissipation holes (501) are provided on the heat dissipation fin (5).
6. The lighting device with dust removal function for tunnel construction according to claim 4, characterized in that: It also includes a heat dissipation frame (23); the heat dissipation frame (23) is fixedly connected to the side of the lamp panel (4) away from the glass panel (7), and the heat dissipation frame (23) is in the shape of a triangular pyramid.
7. The lighting device with dust removal function for tunnel construction according to claim 4, characterized in that: It also includes a back-blowing fan (61), an annular electric guide rail (16), a slider (17), a connecting frame (18), a filter plate (19) and a wedge block (21); the outer frame (3) is fixedly connected with the inner part of the annular electric guide rail (16); a plurality of sliders (17) are slidably connected to the annular electric guide rail (16); one of the sliders (17) is fixedly connected to the electric fan (6), and the other slider (17) is fixedly connected to the back-blowing fan (61); the electric fan (6) and the back-blowing fan (61) are fixedly connected to each other; the right side of the outer frame (3) is connected with the filter plate (19); the side of the filter plate (19) facing the electric fan (6) is fixedly connected with the connecting frame (18); the connecting frame (18) is in close contact with the electric fan (6); the electric fan (6) and the back-blowing fan (61) are of the same size; A plurality of wedge-shaped blocks (21) are fixedly connected between the two electric fans (6).
8. The lighting device with dust removal function for tunnel construction according to claim 7, characterized in that: The edge of the connection frame (18) is provided with a rounded corner (1801).
9. The lighting device with dust removal function for tunnel construction according to claim 7, characterized in that: It also includes a spring plate (20); a plurality of spring plates (20) are fixedly connected to the inner side of the outer frame (3), and all the spring plates (20) are fixedly connected to the filter plate (19).
10. The lighting device with dust removal function for tunnel construction according to claim 9, characterized in that: It also includes a blocking piece (22); the blocking piece (22) is fixedly connected to the outer frame (3).