Traffic signal lamp dust removal device

Abstract

The application discloses a traffic signal lamp dust removal device and relates to the technical field of traffic signal lamps, which comprises an L-shaped frame, three groups of signal lamp assemblies are installed on the L-shaped frame, each group of the signal lamp assemblies comprises a signal lamp body, a lower positioning plate is fixed to the lower end of the signal lamp body, an upper positioning plate is fixed to the upper end of the signal lamp assembly, a lead screw is rotatably arranged at the upper end of the lower positioning plate and the lower end of the upper positioning plate, the lead screw is located on one side of the signal lamp body, and the outer wall of the lead screw is sleeved with three groups of driven assemblies extending to the front surface of the signal lamp body. The driven assemblies are linearly lifted along the outer wall of the lead screw, the brushes in the assemblies are used to clean the surface of the signal lamp body, the color of the signal lamp can be clearly observed by the passing drivers, the personal safety of the traffic personnel is ensured, and the dust removal effect can be achieved on one side of the L-shaped frame without the trouble of climbing.

Description

Technical Field

[0001] This invention relates to the field of traffic signal light technology, specifically to a dust removal device for traffic signal lights. Background Technology

[0002] Traffic lights are signals that direct traffic flow and generally consist of red, green, and yellow lights. A red light indicates "stop," a green light indicates "go," and a yellow light indicates "warning." A red light is a stop signal, and a green light is a go signal. At intersections, vehicles from several directions converge; some want to go straight, some want to turn. The question of who goes first is determined by the traffic lights. When the red light is on, going straight or turning left is prohibited; vehicles are allowed to turn right, provided it does not obstruct pedestrians or other vehicles. When the green light is on, vehicles are allowed to go straight or turn. When the yellow light is on, vehicles must stop before the stop line or pedestrian crossing; if already on, they may continue. When the yellow light is flashing, it warns vehicles to be cautious.

[0003] Traffic lights are exposed to the outdoors for extended periods, and some areas experience sand and dust storms. If not cleaned in time, sand and dust can easily accumulate on the traffic lights, significantly affecting their clarity and failing to provide clearer directions for pedestrians or vehicles. This can easily lead to traffic congestion and pose certain safety hazards. Therefore, a dust removal device for traffic lights is proposed. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a traffic signal light dust removal device to solve the technical problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a traffic signal light dust removal device, comprising an L-shaped frame, on which three sets of signal light assemblies are mounted, each set of signal light assemblies comprising a signal light body, a lower positioning plate fixed to the lower end of the signal light body, an upper positioning plate fixed to the upper end of the signal light assembly, a lead screw rotatably mounted on the upper end of the lower positioning plate and the lower end of the upper positioning plate, the lead screw being located on one side of the signal light body, three sets of driven components extending to the front surface of the signal light body being sleeved on the outer wall of the lead screw, a track changing frame fixed on the other side of the signal light body between the lower positioning plate and the upper positioning plate, and a rainwater collection assembly fixed on the upper surface of the lower positioning plate at the rear side of the signal light body;

[0006] The driven component includes a threaded sleeve that is threaded onto the outer wall of a lead screw. An L-shaped seat is fixed to the outer wall of the threaded sleeve. A connecting strip is fixed to the outer wall of the threaded sleeve on the side away from the L-shaped seat. A positioning block is slidably disposed inside the threaded sleeve. A positioning strip is disposed on one side of the positioning block at the front of the signal light body. A brush is fixed to the side of the positioning strip near the signal light body. A base rod extending into the interior of the positioning block is disposed at one end of the positioning strip. A spring is fixed to the end of the positioning block and the positioning block. A ball head rod extending into the interior of the track-changing frame is disposed at the other end of the positioning strip. A travel groove is provided at the contact position between the track-changing frame and the ball head rod. Three sets of positioning plates are fixed in the travel groove. A track-changing block is fixed to the side of each set of positioning plates that is close to the track. Several sets of hemispheres are disposed between each set of positioning plates in the travel groove.

[0007] The rainwater harvesting assembly includes a water storage frame fixed to the upper surface of the lower positioning plate. Two sets of piston frames are fixed to the side of the water storage frame near the signal light body. A piston is slidably disposed in each set of piston frames. The bottom end of the piston is provided with a piston rod extending out of the lower part of the piston frame, and the end of the piston rod is fixedly connected to a connecting strip. A drain pipe is fixed to the bottom end of the upper positioning plate at the front side of the signal light body. A prefabricated gap is opened on the side of the drain pipe near the signal light body.

[0008] As a preferred technical solution of the traffic signal light dust removal device of the present invention, the L-shaped frame is detachably connected to the signal light assembly by bolts, and the L-shaped frame is fixed to the ground by concrete pouring.

[0009] As a preferred technical solution of the traffic signal light dust removal device of the present invention, the water storage frame is wider at the top and narrower at the bottom, and a triangular filter screen is fixed on the inner wall of the inlet on the upper surface of the water storage frame.

[0010] As a preferred technical solution of the traffic signal light dust removal device of the present invention, the outer wall of the drain pipe is connected to a three-way pipe, the top of the two sets of piston frames is provided with an output channel connected to the three-way pipe, the side wall of the piston frame is provided with an input pipe connected to the water storage frame, and the end of the input pipe is located at the bottom of the water storage frame.

[0011] As a preferred technical solution of the traffic signal light dust removal device of the present invention, the upper surface of the lower positioning plate is provided with drainage grooves around the signal light body, and a drive motor connected to the end of the lead screw is installed inside the lower positioning plate.

[0012] As a preferred technical solution of the traffic signal light dust removal device of the present invention, the inner wall of the L-shaped base is provided with a dovetail block extending into the interior of the positioning block, and a dovetail groove is provided at the contact position between the bottom end of the positioning block and the dovetail block.

[0013] As a preferred technical solution of the traffic signal light dust removal device of the present invention, the surface of the L-shaped frame that contacts the bottom end of the three sets of signal light components is provided with a guide groove, and the guide groove is arranged with the left side higher than the right side.

[0014] As a preferred technical solution of the traffic signal light dust removal device of the present invention, the front surface of the signal light body is provided with three sets of signal lights, and the brushes of each set are located above the signal lights.

[0015] In summary, the present invention has the following main beneficial effects:

[0016] This invention utilizes a driven component that moves linearly along the outer wall of a lead screw, and uses a brush within the component to clean dust from the surface of the signal light body. This allows passing drivers to clearly observe the color of the signal light, ensuring the safety of traffic personnel. The dust removal can be achieved manually from one side of the L-shaped frame, eliminating the need for climbing or ascending.

[0017] This invention cleans the dust from the surface of the signal light body using a driven component. The track-changing frame ensures that the brush is in a non-contact state with the signal light surface when the driven component is raised, preventing dust from re-adhering to the signal light surface. Furthermore, the brush vibrates laterally to remove the dust adhering to it, thus facilitating a high-quality cleaning of the signal light in the next operation.

[0018] This invention utilizes a rainwater harvesting component to collect rainwater during rainy weather. As the driven component rises and falls, it sprays the rainwater onto the surface of the traffic lights after cleaning, preventing dust shaken off by the brush from re-adhering to the traffic light surface. The sprayed rainwater then provides a final rinsing effect, further enhancing the cleaning efficiency of the traffic light surface. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is a front perspective view of the signal light assembly of the present invention;

[0021] Figure 3 This is a rear perspective view of the signal light assembly of the present invention;

[0022] Figure 4 This is a rear structural diagram of the signal light body of the present invention;

[0023] Figure 5 This is a front view of the signal light body of the present invention;

[0024] Figure 6 This is a rear view of the drain pipe of the present invention;

[0025] Figure 7 This is an unfolded view of the driven component of the present invention;

[0026] Figure 8 This is a cross-sectional view of the piston frame of the present invention;

[0027] Figure 9 This is a side sectional view of the track-changing assembly of the present invention.

[0028] In the diagram: 100, L-shaped frame; 200, signal light assembly;

[0029] 210. Signal light body; 220. Upper positioning plate; 230. Lower positioning plate; 240. Lead screw; 250. Driven assembly; 260. Track changing frame; 270. Rainwater collection assembly;

[0030] 231. Drainage channel;

[0031] 241. Drive motor;

[0032] 251. Threaded sleeve; 252. L-shaped seat; 253. Locating block; 254. Spring; 255. Base rod; 256. Locating strip; 257. Brush; 258. Ball head rod; 259. Connecting strip;

[0033] 261. Stroke groove; 262. Positioning piece; 263. Rail changing block; 264. Hemisphere;

[0034] 271. Water storage frame; 272. Triangular filter screen; 273. Piston frame; 274. Piston rod; 275. Piston; 276. Drain pipe; 277. Precast gap; 278. T-pipe. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of the present invention will now be described.

[0037] A dust removal device for traffic lights, such as Figure 1-9As shown, the system includes an L-shaped frame 100, on which three sets of signal light assemblies 200 are mounted. Each set of signal light assemblies 200 includes a signal light body 210. A lower positioning plate 230 is fixed to the lower end of the signal light body 210, and an upper positioning plate 220 is fixed to the upper end of the signal light assembly 200. A lead screw 240 is rotatably provided at the upper end of the lower positioning plate 230 and the lower end of the upper positioning plate 220. The lead screw 240 is located on one side of the signal light body 210. Three sets of driven components 250 extending to the front surface of the signal light body 210 are sleeved on the outer wall of the lead screw 240. A track changing frame 260 is fixed on the other side of the signal light body 210 between the lower positioning plate 230 and the upper positioning plate 220. A rainwater collection assembly 270 is fixed on the upper surface of the lower positioning plate 230 at the rear side of the signal light body 210.

[0038] The driven assembly 250 includes a threaded sleeve 251 threadedly fitted onto the outer wall of the lead screw 240. An L-shaped seat 252 is fixed to the outer wall of the threaded sleeve 251. A connecting strip 259 is fixed to the outer wall of the threaded sleeve 251 on the side away from the L-shaped seat 252. A positioning block 253 is slidably disposed inside the threaded sleeve 251. A positioning strip 256 is disposed on one side of the positioning block 253 at the front of the signal light body 210. A brush 257 is fixed to the side of the positioning strip 256 near the signal light body 210. One end of the positioning strip 256 extends to the positioning block. The base rod 255 inside 253, the end of the positioning block 253 is fixed with a spring 254, the other end of the positioning strip 256 is provided with a ball head rod 258 extending into the inside of the rail changing frame 260, the rail changing frame 260 is provided with a stroke groove 261 at the contact position with the ball head rod 258, three sets of positioning pieces 262 are fixed in the stroke groove 261, and a rail changing block 263 is fixed on the side of each set of positioning pieces 262 that is close to each other. Several sets of hemispheres 264 are provided in the stroke groove 261 between each set of positioning pieces 262.

[0039] The lower positioning plate 230 is equipped with a drive motor 241 that is connected to the end of the lead screw 240. The drive motor 241 is connected to the control panel of the L-shaped frame 100 near the ground to ensure that maintenance personnel can control its start and stop.

[0040] The rainwater harvesting assembly 270 includes a water storage frame 271 fixed to the upper surface of the lower positioning plate 230. Two sets of piston frames 273 are fixed to the side of the water storage frame 271 near the signal light body 210. A piston 275 is slidably disposed within each set of piston frames 273. A piston rod 274 extends from the bottom of the piston frame 273 beyond the lower part of the piston rod 274, and the end of the piston rod 274 is fixedly connected to a connecting strip 259. The bottom end of the upper positioning plate 220 is located at the lower surface of the signal light body 210. A drain pipe 276 is fixed on the front side. A prefabricated gap 277 is opened on the side of the drain pipe 276 near the signal light body 210. A three-way pipe 278 is connected to the outer wall of the drain pipe 276. The top of the two sets of piston frames 273 is provided with an output channel connected to the three-way pipe 278. The side wall of the piston frame 273 is provided with an input pipe connected to the water storage frame 271. The end of the input pipe is located at the bottom of the water storage frame 271. A one-way plate is provided at the end of the input pipe inside the piston frame 273.

[0041] When road maintenance personnel observe dust adhering to the surface of the signal light body 210, they control the drive motor 241 to operate. Its output end drives the lead screw 240 to rotate, while the three sets of driven components 250 on the outer wall descend linearly along the lead screw 240. The positioning strip 256 drives the brush 257 to slide down along the surface of the signal light body 210, removing the dust from the surface. This allows road users to clearly observe the color of the signal light body 210, effectively preventing traffic accidents.

[0042] The ball joint 258 at the end of the positioning strip 256 slides in the stroke groove 261 and contacts the lower track-changing block 263 in a set of positioning pieces 262. The track-changing block 263 obstructs the ball joint 258 and causes the positioning strip 256 to move away from the signal light body 210. At this time, the positioning strip 256, the base rod 255 and the positioning block 253 move accordingly. The brush 257 on the inner side of the positioning strip 256 separates from the surface of the signal light body 210 and is in a non-contact state. Then, the output end of the drive motor 241 drives the lead screw 240 to reverse, causing the driven component 250 to rise linearly along the lead screw 240. During the process of brushing the dust-covered brush 257 returning to its original position, it avoids contact with the signal light body 210, thus better preventing the secondary adhesion of dust.

[0043] As the driven component 250 resets and rises, the end of its ball joint 258 is obstructed by the hemisphere 264 and generates a lateral leftward squeezing force, causing the positioning strip 256 and base rod 255 connected to the ball joint 258 to move to the left. At the same time, the base rod 255 enters the positioning block 253 and compresses the spring 254. When the ball joint 258 passes the hemisphere 264, the reaction force of the spring 254 causes the ball joint 258 and positioning strip 256 to return to their original state and vibrate, so that the dust adhering to the brush 257 on the inner side of the positioning strip 256 is removed, completing the cleaning purpose of the brush 257. When the ball joint 258 returns to its initial height with the rotation of the lead screw 240, it contacts the upper track changing block 263 in a set of positioning plates 262, causing the positioning strip 256 to move laterally towards the signal lamp body 210. At this time, the brush 257 contacts the signal lamp body 210 again, so that the signal lamp body 210 can be cleaned of dust again when it is lowered next time.

[0044] The water storage frame 271 is wider at the top and narrower at the bottom, which is conducive to the centralized storage of rainwater and easy to extract for use later. The upper surface of the water storage frame 271 has a triangular filter screen 272 fixed to the inner wall of the inlet. The triangular filter screen 272 can effectively prevent the stems and leaves of plants such as leaves from entering, effectively avoiding clogging. The upper surface of the water storage frame 271 is open to collect rainwater on rainy days, or a certain amount of water can be added manually during the initial installation, which is convenient for rinsing when cleaning the dust on the surface of the signal light body 210 later.

[0045] When the driven component 250 descends along the outer wall of the lead screw 240, the connecting strip 259 in the component drives the piston rod 274 and piston 275 to descend. The descent of piston 275 creates negative pressure in piston frame 273. At this time, the one-way valve at the end of the input pipe is open, allowing water from the water storage frame 271 to be drawn into piston frame 273 through the input pipe. Conversely, when the driven component 250 rises along the outer wall of the lead screw 240, the connecting strip 259 drives piston rod 274 and piston 275 to rise and return to their original positions. At this time, the one-way valve at the end of the input pipe is closed, and piston 275 squeezes water from inside piston frame 273 into output pipe. Subsequently, the water passes through tee pipe 278 into drain pipe 276, and finally sprays onto the surface of signal lamp body 210 through prefabricated gap 277, rinsing the surface of signal lamp body 210 where dust has just been scraped off, thereby achieving higher dust removal quality on the surface of signal lamp body 210.

[0046] Please refer to this carefully. Figure 1 The L-shaped frame 100 is detachably connected to the signal light assembly 200 using bolts, and the L-shaped frame 100 is fixed to the ground by concrete pouring.

[0047] The use of concrete pouring enhances the stability of the L-shaped frame 100, ensuring it can withstand severe weather, while the bolt installation facilitates the disassembly of the signal light assembly 200, making it easier for maintenance personnel to work later.

[0048] Please refer to this carefully. Figure 1 and Figure 2 The upper surface of the lower positioning plate 230 is provided with drainage grooves 231 around the signal light body 210. The surface of the L-shaped frame 100 that contacts the bottom of the three signal light assemblies 200 is provided with guide grooves, and the guide grooves are set with the left side higher than the right side.

[0049] This allows water flowing down from the surface of the signal light body 210 to enter the drainage trough 231, then flow into the backflow trough, and along the L-shaped frame 100 to the roadside flower bed, preventing it from dripping directly onto the road surface and causing passing vehicles to slip.

[0050] Please refer to this carefully. Figure 7 The inner wall of L-shaped base 252 is provided with a dovetail block extending into the interior of positioning block 253, and a dovetail groove is provided at the bottom end of positioning block 253 where it contacts the dovetail block.

[0051] By using the dovetail block and dovetail groove, it is ensured that the positioning block 253 can only move horizontally within the L-shaped base 252, which in turn can drive the brush 257 on one side to contact or separate from the signal light body 210, while ensuring that the positioning block 253 can move up and down with the L-shaped base 252.

[0052] Please refer to this carefully. Figure 1 The front surface of the signal light body 210 is provided with three sets of signal lights, and each set of brushes 257 is located above the signal light.

[0053] This ensures that the brush 257 does not obstruct the traffic lights, allowing drivers to see the colors of the traffic lights and guaranteeing personal safety during driving.

[0054] When in use, road maintenance personnel observe dust adhering to the surface of the signal light body 210 and control the drive motor 241 to work. Its output end drives the lead screw 240 to rotate, while the three sets of driven components 250 on the outer wall descend linearly along the lead screw 240. The positioning strip 256 drives the brush 257 to slide down along the surface of the signal light body 210, removing the dust from the surface. This allows road users to clearly observe the color of the signal light body 210, effectively preventing traffic accidents.

[0055] The ball joint 258 at the end of the positioning strip 256 slides in the stroke groove 261 and contacts the lower track-changing block 263 in a set of positioning pieces 262. The track-changing block 263 obstructs the ball joint 258 and causes the positioning strip 256 to move away from the signal light body 210. At this time, the positioning strip 256, the base rod 255 and the positioning block 253 move accordingly. The brush 257 on the inner side of the positioning strip 256 separates from the surface of the signal light body 210 and is in a non-contact state. Then, the output end of the drive motor 241 drives the lead screw 240 to reverse, causing the driven component 250 to rise linearly along the lead screw 240. During the process of brushing the dust-covered brush 257 returning to its original position, it avoids contact with the signal light body 210, thus better preventing the secondary adhesion of dust.

[0056] As the driven component 250 resets and rises, the end of its ball joint 258 is obstructed by the hemisphere 264 and generates a lateral leftward squeezing force, causing the positioning strip 256 and base rod 255 connected to the ball joint 258 to move to the left. At the same time, the base rod 255 enters the positioning block 253 and compresses the spring 254. When the ball joint 258 passes the hemisphere 264, the reaction force of the spring 254 causes the ball joint 258 and positioning strip 256 to return to their original state and vibrate, so that the dust adhering to the brush 257 on the inner side of the positioning strip 256 is removed, completing the cleaning purpose of the brush 257. When the ball joint 258 returns to its initial height with the rotation of the lead screw 240, it contacts the upper track changing block 263 in a set of positioning plates 262, causing the positioning strip 256 to move laterally towards the signal lamp body 210. At this time, the brush 257 contacts the signal lamp body 210 again, so that the signal lamp body 210 can be cleaned of dust again when it is lowered next time.

[0057] The water storage frame 271 is wider at the top and narrower at the bottom, which is conducive to the centralized storage of rainwater and easy to extract for use later. The upper surface of the water storage frame 271 has a triangular filter screen 272 fixed to the inner wall of the inlet. The triangular filter screen 272 can effectively prevent the stems and leaves of plants such as leaves from entering, effectively avoiding clogging. The upper surface of the water storage frame 271 is open to collect rainwater on rainy days, or a certain amount of water can be added manually during the initial installation, which is convenient for rinsing when cleaning the dust on the surface of the signal light body 210 later.

[0058] When the driven component 250 descends along the outer wall of the lead screw 240, the connecting strip 259 in the component drives the piston rod 274 and piston 275 to descend. The descent of piston 275 creates negative pressure in piston frame 273. At this time, the one-way valve at the end of the input pipe is open, allowing water from the water storage frame 271 to be drawn into piston frame 273 through the input pipe. Conversely, when the driven component 250 rises along the outer wall of the lead screw 240, the connecting strip 259 drives piston rod 274 and piston 275 to rise and return to their original positions. At this time, the one-way valve at the end of the input pipe is closed, and piston 275 squeezes water from inside piston frame 273 into output pipe. Subsequently, the water passes through tee pipe 278 into drain pipe 276, and finally sprays onto the surface of signal lamp body 210 through prefabricated gap 277, rinsing the surface of signal lamp body 210 where dust has just been scraped off, thereby achieving higher dust removal quality on the surface of signal lamp body 210.

[0059] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A dust removal device for traffic signal lights, comprising an L-shaped frame (100), characterized in that: Three sets of signal light assemblies (200) are installed on the L-shaped frame (100). Each set of signal light assemblies (200) includes a signal light body (210). A lower positioning plate (230) is fixed to the lower end of the signal light body (210), and an upper positioning plate (220) is fixed to the upper end of the signal light assembly (200). A lead screw (240) is rotatably provided between the upper end of the lower positioning plate (230) and the lower end of the upper positioning plate (220). Located on one side of the signal light body (210), the outer wall of the lead screw (240) is fitted with three sets of driven components (250) extending to the front surface of the signal light body (210). On the other side of the signal light body (210), a track changing frame (260) is fixed between the lower positioning plate (230) and the upper positioning plate (220). A rainwater collection component (270) is fixed on the upper surface of the lower positioning plate (230) located at the rear side of the signal light body (210). The driven assembly (250) includes a threaded sleeve (251) threaded onto the outer wall of a lead screw (240). An L-shaped seat (252) is fixed to the outer wall of the threaded sleeve (251). A connecting strip (259) is fixed to the outer wall of the threaded sleeve (251) away from the L-shaped seat (252). A positioning block (253) is slidably disposed inside the threaded sleeve (251). A positioning strip (256) is provided on one side of the positioning block (253) at the front of the signal light body (210). A brush (257) is fixed to the side of the positioning strip (256) near the signal light body (210). One end of the positioning strip (256) extends to the positioning block (253). 253) The base rod (255) inside, the end of the positioning block (253) is fixed with a spring (254), the other end of the positioning strip (256) is provided with a ball head rod (258) extending into the inside of the rail changing frame (260), the rail changing frame (260) and the ball head rod (258) are provided with a stroke groove (261) at the contact position, three sets of positioning pieces (262) are fixed in the stroke groove (261), and a rail changing block (263) is fixed on the side of each set of positioning pieces (262) that is close to each other. Several sets of hemispheres (264) are provided in the stroke groove (261) between each set of positioning pieces (262); The rainwater collection assembly (270) includes a water storage frame (271) fixed to the upper surface of the lower positioning plate (230). Two sets of piston frames (273) are fixed to the side of the water storage frame (271) near the signal light body (210). A piston (275) is slidably provided in each set of piston frames (273). The bottom end of the piston (275) is provided with a piston rod (274) extending out of the bottom of the piston frame (273), and the end of the piston rod (274) is fixedly connected to the connecting strip (259). The bottom end of the upper positioning plate (220) is fixed to the front side of the signal light body (210) with a drain pipe (276). A prefabricated gap (277) is opened on the side of the drain pipe (276) near the signal light body (210).

2. The traffic signal light dust removal device according to claim 1, characterized in that: The L-shaped frame (100) is detachably connected to the signal light assembly (200) by bolts, and the L-shaped frame (100) is fixed to the ground by concrete pouring.

3. The traffic signal light dust removal device according to claim 1, characterized in that: The water storage frame (271) is wider at the top and narrower at the bottom. A triangular filter screen (272) is fixed to the inner wall of the inlet on the upper surface of the water storage frame (271).

4. The traffic signal light dust removal device according to claim 1, characterized in that: The outer wall of the drain pipe (276) is connected to a three-way pipe (278), the top of the two sets of piston frames (273) is provided with an output channel connected to the three-way pipe (278), the side wall of the piston frame (273) is provided with an input pipe connected to the water storage frame (271), and the end of the input pipe is located at the bottom of the water storage frame (271).

5. A traffic signal light dust removal device according to claim 1, characterized in that: The upper surface of the lower positioning plate (230) is provided with drainage grooves (231) around the signal lamp body (210), and a drive motor (241) connected to the end of the lead screw (240) is installed inside the lower positioning plate (230).

6. A traffic signal light dust removal device according to claim 1, characterized in that: The inner wall of the L-shaped base (252) is provided with a dovetail block extending into the positioning block (253), and a dovetail groove is provided at the bottom end of the positioning block (253) where it contacts the dovetail block.

7. A traffic signal light dust removal device according to claim 1, characterized in that: The L-shaped frame (100) has a guide groove on the surface that contacts the bottom of the three sets of signal light assemblies (200), and the guide groove is set with the left side higher than the right side.

8. A traffic signal light dust removal device according to claim 1, characterized in that: The front surface of the signal light body (210) is provided with three sets of signal lights, and the brush (257) of each set is located above the signal light.

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