Self-cleaning street lamp

Abstract

The invention provides a self-cleaning street lamp, and relates to the technical field of illumination. The self-cleaning street lamp comprises a street lamp body, the street lamp body is provided with a lampshade and a lamp body arranged in the lampshade, and a light-emitting part of the lamp body faces the middle of the lower surface of the lampshade; the windshield wiper is slidably arranged at the first end of the lower surface of the lampshade; the nozzle is arranged at the second end of the lower surface of the lampshade and used for spraying water to the middle of the lower surface of the lampshade; and the driving mechanism is arranged in the lampshade, the driving mechanism is used for absorbing heat generated when the lamp body works, the driving mechanism is used for driving the windshield wiper to slide from the first end to the second end, and when the lamp body stops working, the driving mechanism is used for driving the windshield wiper to slide from the second end to the first end. When the lamp body is started and stopped, two-time self-cleaning is achieved, the problem that electric power resources are wasted due to the fact that cleaning is conducted through electric power driving is solved, the energy-saving effect is achieved, the water is sprayed to the middle of the lower surface of the lampshade in cooperation with the nozzle, and the cleaning effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and in particular to a self-cleaning street lamp. Background Art

[0002] Street lamps are lamps that provide lighting for roads. They generally refer to lamps within the scope of road lighting in traffic lighting. Street lamps are widely used in various places where lighting is required. Street lamps are generally installed at high positions, which makes cleaning inconvenient. When cleaning street lamps, most of them use large lifts. Workers stand on the lifts to lift the workers under the lamp body and clean them manually.

[0003] With the continuous advancement of street lamp technology, many self-cleaning street lamps have appeared on the market. The advent of self-cleaning street lamps has saved human resources to a great extent. However, most of the self-cleaning street lamps currently use electric-driven cleaning methods, which require a certain amount of electricity resources, resulting in a waste of electricity resources and failing to achieve the purpose of energy saving. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a self-cleaning street lamp.

[0005] The present invention provides a self-cleaning street lamp, comprising: a street lamp body, the street lamp body comprising a lampshade and a lamp body arranged in the lampshade, the light-emitting portion of the lamp body facing the middle of the lower surface of the lampshade; a wiper, the wiper being slidably arranged at the first end of the lower surface of the lampshade; a nozzle, the nozzle being arranged at the second end of the lower surface of the lampshade, the nozzle being used to spray water toward the middle of the lower surface of the lampshade; a driving mechanism, the driving mechanism being arranged in the lampshade, the driving mechanism being used to absorb heat generated when the lamp body is working, the driving mechanism being used to drive the wiper to slide from the first end to the second end, and when the lamp body stops working, the driving mechanism being used to drive the wiper to slide from the second end to the first end, wherein the first end and the second end are symmetrical about the middle of the lower surface of the lampshade.

[0006] Optionally, the driving mechanism includes a first pulling unit, a second pulling unit and a heated driving unit. When the heated driving unit absorbs heat released by the lamp body, the first pulling unit is used to pull the wiper from the first end to the second end. When the heated driving unit cools down, the second pulling unit is used to pull the wiper from the second end to the first end.

[0007] Optionally, the first pulling unit and the second pulling unit both include a rope pulley, a rotating shaft, a winding wheel and a gear, the winding wheel and the gear are mounted on the rotating shaft, the rotating shaft is rotatably connected to the inner wall of the lamp cover, the rope pulley is connected to the lower surface of the lamp cover, the first pulling unit also includes a first pull rope, one end of the first pull rope is connected to the wiper, the other end of the first pull rope bypasses the corresponding rope pulley and is wound around the corresponding winding wheel, the second pulling unit also includes a second pull rope, one end of the second pull rope is connected to the wiper, the other end of the second pull rope bypasses the corresponding rope pulley and is wound around the corresponding winding wheel, when the heated driving unit absorbs the heat released by the lamp body, the first pull rope is wound around the corresponding winding wheel, and when the heated driving unit is cooled, the second pull rope is loosened on the corresponding winding wheel.

[0008] Optionally, the driving mechanism also includes a first gear rod, both sides of which are provided with teeth, the teeth on both sides of the first gear rod are respectively meshed with the corresponding gears, and the heated driving unit is drivingly connected to the first gear rod. When the heated driving unit absorbs heat released by the lamp body, the heated driving unit drives the first gear rod to move vertically upward; when the heated driving unit cools down, the heated driving unit drives the first gear rod to move vertically downward.

[0009] Optionally, the heat-driven unit includes a deformable wrapping bag and a thermal expansion extension rod, the bottom surface of the deformable wrapping bag is set to an open structure and connected to the heat dissipation part of the lamp body, one end of a plurality of thermal expansion extension rods is connected to the heat dissipation part of the lamp body, the other ends of a plurality of thermal expansion extension rods penetrate into the deformable wrapping bag and are connected to the inner wall of the side of the deformable wrapping bag away from the lamp body, and the bottom end of the first gear rod is connected to the deformable wrapping bag.

[0010] Optionally, a water supply mechanism is also included, which includes a water pump unit and a water tank. The water tank is connected to the inner bottom surface of the lampshade. When the first gear rod moves vertically upward, the water pump unit is used to deliver water to the nozzle. When the first gear rod moves vertically downward, the water pump unit is used to pump water in the water tank.

[0011] Optionally, the water pump unit includes a second gear rod, a piston, a cylinder, a water supply pipe, a first one-way valve, a second one-way valve and a water suction pipe, the second gear rod is vertically arranged and meshingly connected with a side of the gear away from the first gear rod, the bottom end of the second gear rod penetrates into the cylinder and is connected to the piston, the piston is slidably connected to the inner wall of the cylinder, an air hole is provided on the top of the cylinder, the bottom of the cylinder is respectively connected to one end of the water supply pipe and the water suction pipe, the other ends of the water supply pipe and the water suction pipe are respectively connected to the nozzle and the water tank, the first one-way valve and the second one-way valve are respectively arranged on the water supply pipe and the water suction pipe, the first one-way valve is used to allow the water in the cylinder to be transported to the nozzle in one direction, and the second one-way valve is used to allow the water in the water tank to be transported to the cylinder in one direction.

[0012] Optionally, a water collecting groove is provided on the upper surface of the lampshade, and the first gear rod is set to a hollow structure. The bottom end of the water collecting groove is connected to one end of a bellows, and the other end of the bellows is connected to the top of the first gear rod. The top and bottom surfaces of the deformable wrapping bag are respectively provided with a first perforation and a second perforation, and the bottom end of the first gear rod is connected to the first perforation, and the second perforation is connected to one end of a drain pipe, and the other end of the drain pipe extends out of the lampshade.

[0013] Optionally, the water supply mechanism further includes a water inlet pipe, one end of which is connected to the water collecting tank, and the other end of which is connected to the water tank.

[0014] Optionally, a filter screen is provided on the water collecting tank.

[0015] The beneficial effect of the self-cleaning street lamp of the present invention is that when the lamp body starts to work and illuminate, the driving mechanism can gradually absorb the heat generated by the lamp body, so that the wiper can slide from the first end of the lower surface of the lampshade to the second end of the lower surface of the lampshade, thereby performing a self-cleaning of the dust and stains on the middle part of the lower surface of the lampshade; when the lamp body stops working and is extinguished, the driving mechanism can make the wiper slide from the second end of the lower surface of the lampshade to the first end of the lower surface of the lampshade, and can also scrape off the dust, flying insects and other stains on the middle part of the lower surface of the lampshade, thereby realizing secondary self-cleaning, which not only avoids the problem of waste of electric power resources caused by the electric drive for cleaning, thereby achieving energy saving effect, and cooperates with the nozzle to spray water to the middle part of the lower surface of the lampshade, thereby further improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a self-cleaning street lamp according to an embodiment of the present invention; Figure 2 A bottom view of a self-cleaning street lamp according to an embodiment of the present invention; Figure 3It is a schematic diagram of the structure of the wiper of the self-cleaning street lamp in the embodiment of the present invention when it is at the first end; Figure 4 A partial structural schematic diagram of a self-cleaning street lamp according to an embodiment of the present invention; Figure 5 for Figure 4 A magnified view of the structure at A; Figure 6 This is a schematic diagram of the structure of the self-cleaning street lamp in an embodiment of the present invention when the wiper is at the second end.

[0017] Explanation of the reference numerals in the accompanying drawings: 1. street lamp body; 11. lampshade; 111. water collecting trough; 12. lamp body; 2. wiper; 3. nozzle; 4. driving mechanism; 41. first pull rope; 42. pulley; 43. deformable wrapping bag; 431. first perforation; 432. second perforation; 44. thermal expansion extension rod; 45. first gear rod; 46. rotating shaft; 47. winding wheel; 48. gear; 49. second pull rope; 5. bellows; 6. water supply mechanism; 61. water pumping unit; 611. second gear rod; 612. piston; 613. cylinder; 614. water supply pipe; 615. first one-way valve; 616. second one-way valve; 617. water suction pipe; 62. water tank; 63. water inlet pipe. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or embodiments in a suitable manner.

[0021] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0022] An embodiment of the present invention provides a self-cleaning street lamp, comprising: a street lamp body 1, the street lamp body 1 has a lampshade 11 and a lamp body 12 arranged in the lampshade 11, and the light-emitting portion of the lamp body 12 faces the middle of the lower surface of the lampshade 11; a wiper 2, the wiper 2 is slidably arranged at the first end of the lower surface of the lampshade 11; a nozzle 3, the nozzle 3 is arranged at the second end of the lower surface of the lampshade 11, and the nozzle 3 is used to spray water to the middle of the lower surface of the lampshade 11; a driving mechanism 4, the driving mechanism 4 is arranged in the lampshade 11, the driving mechanism 4 is used to absorb the heat generated when the lamp body 12 is working, the driving mechanism 4 is used to drive the wiper 2 to slide from the first end to the second end, and when the lamp body 12 stops working, the driving mechanism 4 is used to drive the wiper 2 to slide from the second end to the first end, wherein the first end and the second end are symmetrical about the middle of the lower surface of the lampshade 11.

[0023] Specifically, the light-emitting portion of the lamp body 12 refers to the area where the lamp body 12 emits light. The middle portion of the lower surface of the lampshade 11 can be made of a transparent material, so that the light-emitting portion of the lamp body 12 transmits light through the middle portion of the lower surface of the lampshade 11 to the outside, or the light-emitting portion of the lamp body 12 can be directly installed on the bottom surface of the lampshade 11. In other words, the light-emitting portion of the lamp body 12 is exposed at the bottom of the lampshade 11, so that the light-emitting portion and the bottom surface of the lampshade 11 are in the same horizontal plane. The present application is applicable to a lamp body 12 with a flat light-emitting portion, such as a lamp body 12 with an arc-shaped upper surface and a flat lower surface in the present embodiment, or a lamp body 12 with a whole rectangular structure. The street lamp body 1 also includes other components, which will not be elaborated in the present application.

[0024] The middle part of the lower surface of the lampshade 11 is made of transparent material, so that the light-emitting part of the lamp body 12 can irradiate light to the outside through the middle part of the lower surface of the lampshade 11. In this embodiment, the first end and the second end are the left end and the right end of the lampshade 11 respectively. The wiper 2 is a rod-shaped structure. The rod body of the wiper 2 can be slidably arranged on the lower surface of the lampshade 11 in the form of a guide seat, and the rubber scraper of the wiper 2 is in sliding contact with the lower surface of the lampshade 11.

[0025] In this optional embodiment, when the lamp body 12 starts to work and illuminate, the driving mechanism 4 can gradually absorb the heat generated by the lamp body 12, so that the wiper 2 slides from the first end of the lower surface of the lampshade 11 to the second end of the lower surface of the lampshade 11, thereby performing a self-cleaning of the dust, flying insects and other stains on the middle part of the lower surface of the lampshade 11; when the lamp body 12 stops working and is extinguished, the driving mechanism 4 can make the wiper 2 slide from the second end of the lower surface of the lampshade 11 to the first end of the lower surface of the lampshade 11, and can also scrape off the dust, flying insects and other stains on the middle part of the lower surface of the lampshade 11, thereby achieving secondary self-cleaning, which not only avoids the problem of waste of electric power resources caused by the electric drive for cleaning, thereby achieving energy saving effect, and cooperates with the nozzle 3 to spray water to the middle part of the lower surface of the lampshade 11, thereby further improving the cleaning effect.

[0026] Optionally, the driving mechanism 4 includes a first pulling unit, a second pulling unit and a heated driving unit. When the heated driving unit absorbs heat released by the lamp body 12, the first pulling unit is used to pull the wiper 2 from the first end to the second end. When the heated driving unit cools down, the second pulling unit is used to pull the wiper 2 from the second end to the first end.

[0027] Furthermore, the first pulling unit and the second pulling unit both include a rope pulley 42, a rotating shaft 46, a winding wheel 47 and a gear 48. The winding wheel 47 and the gear 48 are mounted on the rotating shaft 46. The rotating shaft 46 is rotatably connected to the inner wall of the lampshade 11. The rope pulley 42 is connected to the lower surface of the lampshade 11. The first pulling unit also includes a first pull rope 41. One end of the first pull rope 41 is connected to the wiper 2, and the other end of the first pull rope 41 passes around the corresponding rope pulley 42 and is wound around the corresponding winding wheel 47. The second pulling unit also includes a second pull rope 49. One end of the second pull rope 49 is connected to the wiper 2, and the other end of the second pull rope 49 passes around the corresponding rope pulley 42 and is wound around the corresponding winding wheel 47. When the heated driving unit absorbs the heat released by the lamp body 12, the first pull rope 41 is wound around the corresponding winding wheel 47. When the heated driving unit cools down, the second pull rope 49 is loosened on the corresponding winding wheel 47.

[0028] Furthermore, the driving mechanism 4 also includes a first gear rod 45, both sides of which are provided with teeth, and the teeth on both sides of the first gear rod 45 are respectively meshed and connected with the corresponding gears 48, and the heated driving unit is drivingly connected to the first gear rod 45. When the heated driving unit absorbs the heat released by the lamp body 12, the heated driving unit drives the first gear rod 45 to move vertically upward, and when the heated driving unit cools down, the heated driving unit drives the first gear rod 45 to move vertically downward.

[0029] In this optional embodiment, when the heat-receiving driving unit absorbs the heat released by the lamp body 12, the heat-receiving driving unit drives the first gear rod 45 to move vertically upward, driving the winding wheel 47 on the left to rotate counterclockwise, gradually releasing the second pull rope 49, driving the winding wheel 47 on the right to rotate clockwise, driving the first pull rope 41 to gradually wind, thereby pulling the wiper 2 to move from the first end to the second end, that is, from Figure 3 Move the position in Figure 6 The middle position of the lamp body 12 is used to cooperate with the nozzle 3 to spray water to the middle part of the lower surface of the lampshade 11 to clean the dust, flying insects and other stains in the middle part of the lower surface of the lampshade 11, thereby achieving the self-cleaning effect of the lamp body 12, greatly saving manpower and improving the lighting effect of the lamp body 12.

[0030] Optionally, the heat-driven unit includes a deformable wrapping bag 43 and a thermal expansion extension rod 44. The bottom surface of the deformable wrapping bag 43 is set to an open structure and is connected to the heat dissipation part of the lamp body 12. One end of multiple thermal expansion extension rods 44 is connected to the heat dissipation part of the lamp body 12. The other ends of multiple thermal expansion extension rods 44 penetrate into the deformable wrapping bag 43 and are connected to the inner wall of the side of the deformable wrapping bag 43 away from the lamp body 12. The bottom end of the first gear rod 45 is connected to the deformable wrapping bag 43.

[0031] In this optional embodiment, combined with Figure 3 , Figure 4 and Figure 6 As shown, the deformable wrapping capsule 43 is made of high-temperature resistant elastic material. Since the side of the lamp body 12 in this embodiment away from the light-emitting portion is arc-shaped, the deformable wrapping capsule 43 can be crescent-shaped. The bottom end of the first gear rod 45 is connected to the center position of the upper surface of the deformable wrapping capsule 43. The thermal expansion extension rod 44 is arranged vertically, which can absorb the heat of the lamp body 12 when it is working and then stretch, thereby lifting the deformable wrapping capsule 43, thereby pushing the first gear rod 45 to move upward. When the lamp body 12 is extinguished, the thermal expansion extension rod 44 gradually pulls the first gear rod 45 downward.

[0032] Optionally, the self-cleaning street lamp also includes a water supply mechanism 6, which includes a water pumping unit 61 and a water tank 62. The water tank 62 is connected to the inner bottom surface of the lampshade 11. When the first gear rod 45 moves vertically upward, the water pumping unit 61 is used to deliver water to the nozzle 3. When the first gear rod 45 moves vertically downward, the water pumping unit 61 is used to pump water from the water tank 62.

[0033] Furthermore, the water pump unit 61 includes a second gear rod 611, a piston 612, a cylinder 613, a water supply pipe 614, a first one-way valve 615, a second one-way valve 616 and a water pumping pipe 617. The second gear rod 611 is arranged vertically and meshed with the side of the gear 48 away from the first gear rod 45. The bottom end of the second gear rod 611 penetrates into the cylinder 613 and is connected to the piston 612. The piston 612 is slidably connected to the inner wall of the cylinder 613. The top of the cylinder 613 is provided with a There are air holes, and the bottom of the cylinder 613 is respectively connected to one end of the water supply pipe 614 and the water suction pipe 617, and the other ends of the water supply pipe 614 and the water suction pipe 617 are respectively connected to the nozzle 3 and the water tank 62. The first one-way valve 615 and the second one-way valve 616 are respectively arranged on the water supply pipe 614 and the water suction pipe 617. The first one-way valve 615 is used to allow the water in the cylinder 613 to be transported to the nozzle 3 in one direction, and the second one-way valve 616 is used to allow the water in the water tank 62 to be transported to the cylinder 613 in one direction.

[0034] In this optional embodiment, when the first gear rod 45 moves upward, the wiper 2 automatically moves upward. Figure 3 The position in Figure 6 In the middle position, the gear 48 on the left rotates counterclockwise, and the gear 48 on the right rotates clockwise, both of which can drive the corresponding second gear rod 611 to move downward. It should be noted that the second gear rod 611 can be guided by a guide seat to ensure its stability during vertical movement. The second gear rod 611 moves downward, thereby driving the piston 612 to move downward, and then the water in the cylinder 613 is transported from the water supply pipe 614 to the nozzle 3, so that the nozzle 3 sprays water to the middle part of the lower surface of the lampshade 11, and cooperates with the wiper 2 to clean the middle part of the lower surface of the lampshade 11. When the first gear rod 45 moves downward, the water in the water tank 62 is pumped into the cylinder 613 through the pumping pipe 617, so as to replenish the water in the cylinder 613.

[0035] Optionally, a water collecting groove 111 is provided on the upper surface of the lampshade 11, and the first gear rod 45 is set as a hollow structure. The bottom end of the water collecting groove 111 is connected to one end of the bellows 5, and the other end of the bellows 5 is connected to the top of the first gear rod 45. The top and bottom surfaces of the deformable wrapping bag 43 are respectively provided with a first perforation 431 and a second perforation 432. The bottom end of the first gear rod 45 is connected to the first perforation 431, and the second perforation 432 is connected to one end of a drain pipe, and the other end of the drain pipe extends out of the lampshade 11.

[0036] In this optional embodiment, combined with Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when it rains, rainwater enters the bellows 5 from the water collection tank 111, then flows into the first gear rod 45, and then enters the deformable wrapping bag 43 from the first perforation 431, thereby cooling the thermal expansion extension rod 44, forcing the thermal expansion extension rod 44 to shrink and shorten, thereby restoring the deformable wrapping bag 43 to its original shape and driving the first gear rod 45 to move downward. During this process, the bellows 5 expands and contracts and restores its original shape, thereby driving the gear 48 on the left to rotate clockwise and the gear 48 on the right to rotate counterclockwise, so that the first pull rope 41 is released from the corresponding winding wheel 47, and the second pull rope 49 is wound around the corresponding winding wheel 47, so that the second pull rope 49 pulls the wiper 2 from the right side to the left side, that is, the wiper 2 moves from the right side to the left side. Figure 6 Return to the position Figure 3 At this time, rain will cause raindrops to appear on the lower surface of the lampshade 11, and the wiper 2 can scrape off the raindrops, thereby improving the lighting effect of the lamp body 12 on rainy days. Especially when there is a shower, the thermal expansion extension rod 44 can absorb heat again between two rainfalls, so that the wiper 2 returns to the position from Figure 3 Return to the location Figure 6 The position of the wiper 2 is realized to repeatedly scrape and clean the raindrops on the lower surface of the lampshade 11. It should be noted that when it rains continuously, the rainwater keeps cooling the thermal expansion extension rod 44. At this time, the wiper 2 will always be in Figure 3 When the rain stops, the wiper 2 performs cleaning work again, and the rainwater in the deformable wrapping bag 43 can enter the drain pipe through the first perforation 431 and then be discharged.

[0037] Furthermore, the water supply mechanism 6 also includes a water inlet pipe 63 , one end of the water inlet pipe 63 is connected to the water collecting tank 111 , and the other end of the water inlet pipe 63 is connected to the water tank 62 .

[0038] In this optional embodiment, combined with Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, on rainy days, the water collecting tank 111 can guide the collected rainwater into the water tank 62 through the water inlet pipe 63, thereby achieving the purpose of water replenishment.

[0039] Optionally, a filter screen is provided on the water collecting tank 111 .

[0040] In this optional embodiment, combined with Figure 4 As shown, the filter screen can intercept debris such as leaves to prevent the debris from clogging the water collection tank 111, and the filter screen can be an upwardly raised curved surface structure, so that the wind can more easily blow the debris away from the filter screen.

[0041] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A self-cleaning street lamp, characterized in that: include: A street lamp body (1), the street lamp body (1) comprising a lampshade (11) and a lamp body (12) arranged in the lampshade (11), the light-emitting portion of the lamp body (12) facing the middle of the lower surface of the lampshade (11); A windshield wiper (2), the windshield wiper (2) being slidably disposed on a first end of a lower surface of the lampshade (11); A nozzle (3), the nozzle (3) being arranged at a second end of the lower surface of the lampshade (11), the nozzle (3) being used to spray water toward the middle of the lower surface of the lampshade (11); A driving mechanism (4), the driving mechanism (4) being arranged in the lampshade (11), the driving mechanism (4) being used to absorb heat generated when the lamp body (12) is in operation, the driving mechanism (4) being used to drive the wiper (2) to slide from the first end to the second end, and when the lamp body (12) stops working, the driving mechanism (4) being used to drive the wiper (2) to slide from the second end to the first end, wherein the first end and the second end are symmetrical with respect to the middle of the lower surface of the lampshade (11).

2. The self-cleaning street lamp according to claim 1, characterized in that: The driving mechanism (4) comprises a first pulling unit, a second pulling unit and a heat-receiving driving unit; when the heat-receiving driving unit absorbs heat released by the lamp body (12), the first pulling unit is used to pull the wiper (2) from the first end to the second end; when the heat-receiving driving unit cools down, the second pulling unit is used to pull the wiper (2) from the second end to the first end.

3. The self-cleaning street lamp according to claim 2, characterized in that: The first pulling unit and the second pulling unit both comprise a rope wheel (42), a rotating shaft (46), a winding wheel (47) and a gear (48); the winding wheel (47) and the gear (48) are mounted on the rotating shaft (46); the rotating shaft (46) is rotatably connected to the inner wall of the lampshade (11); the rope wheel (42) is connected to the lower surface of the lampshade (11); the first pulling unit also comprises a first pull rope (41); one end of the first pull rope (41) is connected to the wiper (2); the other end of the first pull rope (41) is passed around the corresponding rope wheel (42) ) and is wound around the corresponding winding wheel (47), the second pulling unit also includes a second pull rope (49), one end of the second pull rope (49) is connected to the wiper (2), the other end of the second pull rope (49) is passed around the corresponding rope wheel (42) and is wound around the corresponding winding wheel (47), when the heated driving unit absorbs the heat released by the lamp body (12), the first pull rope (41) is wound around the corresponding winding wheel (47), and when the heated driving unit cools down, the second pull rope (49) is loosened on the corresponding winding wheel (47).

4. The self-cleaning street lamp according to claim 3, characterized in that: The driving mechanism (4) further comprises a first gear rod (45), both side surfaces of the first gear rod (45) are provided with teeth, the teeth on both sides of the first gear rod (45) are respectively meshed and connected with the corresponding gears (48), the heated driving unit is drivingly connected to the first gear rod (45), when the heated driving unit absorbs heat released by the lamp body (12), the heated driving unit drives the first gear rod (45) to move vertically upward, and when the heated driving unit cools down, the heated driving unit drives the first gear rod (45) to move vertically downward.

5. The self-cleaning street lamp according to claim 4, characterized in that: The heat-driven unit comprises a deformable wrapping capsule (43) and a thermal expansion extension rod (44); the bottom surface of the deformable wrapping capsule (43) is set as an open structure and is connected to the heat dissipation part of the lamp body (12); one end of a plurality of thermal expansion extension rods (44) is connected to the heat dissipation part of the lamp body (12); the other ends of the plurality of thermal expansion extension rods (44) penetrate into the deformable wrapping capsule (43) and are connected to the inner wall of the side of the deformable wrapping capsule (43) away from the lamp body (12); and the bottom end of the first gear rod (45) is connected to the deformable wrapping capsule (43).

6. The self-cleaning street lamp according to claim 5, characterized in that: The lampshade (11) further comprises a water supply mechanism (6), the water supply mechanism (6) comprising a water pump unit (61) and a water tank (62), the water tank (62) being connected to the inner bottom surface of the lampshade (11); when the first gear rod (45) moves vertically upward, the water pump unit (61) is used to deliver water to the nozzle (3); when the first gear rod (45) moves vertically downward, the water pump unit (61) is used to pump water in the water tank (62).

7. The self-cleaning street lamp according to claim 6, characterized in that: The water pump unit (61) comprises a second gear rod (611), a piston (612), a cylinder (613), a water supply pipe (614), a first one-way valve (615), a second one-way valve (616) and a water suction pipe (617); the second gear rod (611) is arranged vertically and meshingly connected with a side of the gear (48) away from the first gear rod (45); the bottom end of the second gear rod (611) penetrates into the cylinder (613) and is connected to the piston (612); the piston (612) is slidably connected to the inner wall of the cylinder (613); an air hole is provided on the top of the cylinder (613); and the cylinder (613) is provided with a plurality of air holes. The bottom of the cylinder (613) is respectively connected to one end of the water supply pipe (614) and the water suction pipe (617), and the other ends of the water supply pipe (614) and the water suction pipe (617) are respectively connected to the nozzle (3) and the water tank (62). The first one-way valve (615) and the second one-way valve (616) are respectively arranged on the water supply pipe (614) and the water suction pipe (617). The first one-way valve (615) is used to allow water in the cylinder (613) to be transported to the nozzle (3) in a one-way manner, and the second one-way valve (616) is used to allow water in the water tank (62) to be transported to the cylinder (613) in a one-way manner.

8. The self-cleaning street lamp according to claim 7, characterized in that: The upper surface of the lampshade (11) is provided with a water collecting groove (111); the first gear rod (45) is set as a hollow structure; the bottom end of the water collecting groove (111) is connected to one end of a bellows (5); the other end of the bellows (5) is connected to the top end of the first gear rod (45); the top surface and the bottom surface of the deformable wrapping bag (43) are respectively provided with a first through hole (431) and a second through hole (432); the bottom end of the first gear rod (45) is connected to the first through hole (431); the second through hole (432) is connected to one end of a drainage pipe; the other end of the drainage pipe extends out of the lampshade (11).

9. The self-cleaning street lamp according to claim 8, characterized in that: The water supply mechanism (6) further comprises a water inlet pipe (63), one end of the water inlet pipe (63) being in communication with the water collecting tank (111), and the other end of the water inlet pipe (63) being in communication with the water tank (62).

10. The self-cleaning street lamp according to claim 8, characterized in that: The water collecting tank (111) is provided with a filter screen.

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