A high-efficiency and low-cost LED street light

Abstract

The present invention provides a high-efficiency and low-cost LED street lamp, which includes a lamp device and a telescopic pole group. The telescopic pole group includes a main lamp pole and a sub-lamp pole. The main lamp pole is a hollow structure. The sub-lamp pole can be slidably partially accommodated in the main lamp pole, and the lamp device is installed on the sub-lamp pole. The sub-lamp pole is provided with a positioning clamping hole. There are multiple positioning clamping holes, and the multiple positioning clamping holes are evenly spaced along the sliding direction of the sub-lamp pole. The main lamp pole is provided with a positioning bolt, which is passed through the main lamp pole and can be movably inserted into the positioning clamping hole. The lamp device includes: an LED lamp, a lampshade and a wind energy pressure regulating device. The lampshade is provided with an air vent. The wind energy pressure regulating device is provided on the lampshade and connected to the air vent. The height of the high-efficiency and low-cost LED street lamp of the present invention is adjustable, thereby enhancing its environmental adaptability, while facilitating its transportation and reducing the difficulty of transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting equipment, and in particular to a high-efficiency and low-cost LED street lamp. Background Art

[0002] High-efficiency, low-cost LED street lights are used to illuminate roads. They are installed on every main road and alley in a city, and are now found in almost every corner. Existing high-efficiency, low-cost LED street lights generally consist of lamps, light poles, and pre-embedded foundation components.

[0003] Traditional high-efficiency, low-cost LED streetlight poles are of fixed length. To illuminate a wider area, these poles are typically not too short. However, with the construction of urban roads, overpasses, and pedestrian bridges are becoming increasingly common. Bridge arches are typically low, making it difficult to install traditional high-efficiency, low-cost LED streetlights under these arches. This results in insufficient light and can easily lead to traffic accidents. Furthermore, excessively long poles can be inconvenient and difficult to transport.

[0004] Therefore, how to design an efficient and low-cost LED street light so that its height can be adjusted, thereby enhancing its environmental adaptability, facilitating its transportation and reducing the difficulty of transportation, is a technical problem that technicians in this field need to solve. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a high-efficiency and low-cost LED street lamp, which has an adjustable height, thereby enhancing its environmental adaptability, while facilitating transportation and reducing transportation difficulty.

[0006] The object of the present invention is achieved through the following technical solutions:

[0007] A high-efficiency and low-cost LED street lamp, comprising a lamp device and a telescopic pole assembly, wherein the telescopic pole assembly comprises a main lamp pole and a secondary lamp pole, wherein the main lamp pole is a hollow structure, the secondary lamp pole is slidably partially accommodated in the main lamp pole, and the lamp device is mounted on the secondary lamp pole;

[0008] The auxiliary lamp pole is provided with a positioning clamping hole, and the number of the positioning clamping holes is multiple, and the multiple positioning clamping holes are distributed at equal intervals along the sliding direction of the auxiliary lamp pole; the main lamp pole is provided with a positioning bolt, and the positioning bolt passes through the main lamp pole and can be movably inserted into the positioning clamping hole.

[0009] In one embodiment, the lamp device includes: an LED lamp, a lampshade, and a wind-energy air pressure regulating device, wherein the LED lamp is arranged in the lampshade, the lampshade is mounted on the auxiliary lamp pole, the lampshade is provided with an air vent, and the wind-energy air pressure regulating device is arranged on the lampshade and communicated with the air vent;

[0010] The wind energy air pressure regulating device includes a wind energy component and an autonomous pressure regulating component, and the wind energy component is used to control the autonomous pressure regulating component to be turned on or off.

[0011] In one embodiment, the autonomous pressure regulating assembly includes: a fixed base, a slot plug, a negative pressure deflector, and a weather vane, wherein the fixed base is provided on the lampshade, the fixed base is provided with a movable accommodating cavity, the movable accommodating cavity is communicated with the air vent, the slot plug is movably received in the movable accommodating cavity, and the wind energy assembly controls the slot plug to block or detach from the air vent, the negative pressure deflector is rotatably mounted on the fixed base, and the weather vane is fixed to the negative pressure deflector;

[0012] The fixed base is provided with a first vent hole, which is in communication with the movable accommodating chamber; the negative pressure deflector is provided with a second vent hole and an exhaust slot, the second vent hole is in communication with the first vent hole, the exhaust slot is in communication with the second vent hole, and the wind vane is parallel to the notch direction of the exhaust slot;

[0013] The wind energy assembly includes: a cup anemometer, a generator, a support rod and an electromagnetic suction cup, wherein the support rod is passed through the negative pressure deflection member and fixedly mounted on the fixed base, one end of the support rod is provided with the generator, the cup anemometer is drivingly connected to the input shaft of the generator, the other end of the support rod is provided with the electromagnetic suction cup, the support rod is provided with a wire groove, and the electromagnetic suction cup is electrically connected to the generator through the wire groove;

[0014] The slot plug is provided with a clamping portion and a blocking portion, the clamping portion is an iron structure, and the clamping portion faces the electromagnetic suction cup, and the blocking portion is provided with a conical guiding surface.

[0015] In one embodiment, the second vent hole is oriented perpendicular to the notch of the exhaust slot, and a flaring structure is provided at the notch of the exhaust slot;

[0016] The lower groove wall of the expansion structure is an inclined surface extending outward, and the upper groove wall of the expansion structure is a flat surface extending outward.

[0017] In one embodiment, an activated carbon filter is provided on the second vent hole, and the activated carbon filter has a honeycomb-shaped through-hole structure.

[0018] In one embodiment, the negative pressure deflector is provided with a sleeve portion, the sleeve portion is sleeved on the fixed base, a blocking ring is provided inside the sleeve portion, a carrying ring is provided on the fixed base, an accommodating space is formed between the blocking ring and the carrying ring, and a thrust bearing is provided in the accommodating space.

[0019] In one embodiment, a drainage hole is provided on the side wall of the negative pressure deflector, and the drainage hole is connected to the exhaust groove; the drainage hole is an inclined hole, and a drainage blade is provided on the drainage hole, and the angle between the inclination direction of the drainage blade and the side wall of the negative pressure deflector is 30° to 60°.

[0020] In summary, the height of the high-efficiency and low-cost LED street lamp of the present invention is adjustable, thereby enhancing its environmental adaptability and facilitating its transportation, thereby reducing the difficulty of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of the high-efficiency and low-cost LED street lamp of the present invention (I);

[0023] Figure 2 This is a structural schematic diagram of the high-efficiency and low-cost LED street lamp of the present invention (II);

[0024] Figure 3 for Figure 1 The structural diagram of the lighting device shown;

[0025] Figure 4 for Figure 3 An exploded schematic diagram of a wind energy air pressure regulating device is shown;

[0026] Figure 5 for Figure 3 A partial anatomical view of the autonomous pressure regulating assembly is shown;

[0027] Figure 6 for Figure 3 A partial cross-sectional view of the wind energy air pressure regulating device shown;

[0028] Figure 7 This is a schematic diagram of the closed state of the wind energy air pressure regulating device in the absence of wind;

[0029] Figure 8 This is a schematic diagram of the open state of the wind energy air pressure regulating device under wind conditions;

[0030] Figure 9 for Figure 4 An enlarged view of point A is shown. DETAILED DESCRIPTION

[0031] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] The present invention provides a high-efficiency and low-cost LED street lamp 10, such as Figure 1 As shown, it includes a lamp device 11 and a telescopic rod group 12. The telescopic rod group 12 includes a main lamp pole 100 and an auxiliary lamp pole 200. The main lamp pole 100 is a hollow structure. The auxiliary lamp pole 200 can be slidably partially accommodated in the main lamp pole 100. The lamp device 11 is installed on the auxiliary lamp pole 200.

[0035] In this embodiment, if Figure 1 and Figure 2 As shown, the auxiliary lamp post 200 is provided with a plurality of positioning retaining holes 201, which are evenly spaced along the sliding direction of the auxiliary lamp post 200. The main lamp post 100 is provided with a positioning bolt 101, which passes through the main lamp post 100 and can be movably inserted into the positioning retaining holes 201.

[0036] After the high-efficiency and low-cost LED street lamp 10 is assembled as described above, the length of the telescopic pole group 12 composed of the main lamp pole 100 and the auxiliary lamp pole 200 can be adjusted. Specifically, after loosening or removing the positioning bolt 101, the auxiliary lamp pole 200 can be further accommodated in the main lamp pole 100, or it can be further extended from the main lamp pole 100. For example, when installing the high-efficiency and low-cost LED street lamp 10 on an ordinary road, it is necessary to keep the lamp device 11 as far away from the ground as possible. The auxiliary lamp pole 200 can be extended from the main lamp pole 100 to make the length of the telescopic rod group 12 as long as possible, and then the positioning bolt 101 is clamped on the last positioning clamping hole 201 to limit the movement of the auxiliary lamp pole 200, thereby fixing the length of the telescopic rod group 12; for another example, when installing the high-efficiency and low-cost LED street lamp 10 in a bridge hole, it is necessary to make the height of the lamp device 11 lower than the bridge hole, and then the auxiliary lamp pole 200 can be further accommodated in the main lamp pole 100, and then the positioning bolt 101 is clamped with a reasonable positioning clamping hole 201 to limit the movement of the auxiliary lamp pole 200, thereby fixing the length of the telescopic rod group 12. Furthermore, when transporting the efficient and low-cost LED street lamp 10, the auxiliary lamp pole 200 can be completely housed in the main lamp pole 100 to reduce the length and occupied volume of the telescopic pole group 12; the auxiliary lamp pole 200 can also be separated from the main lamp pole 100 to facilitate separate transportation, and the assembly of the telescopic pole group 12 after separate transportation is also relatively convenient. It is only necessary to insert the auxiliary lamp pole 200 into the main lamp pole 100 and then tighten the positioning bolt 101. This not only facilitates transportation, but also does not increase the difficulty of installation.

[0037] The present inventors also discovered that because the lamp 11 is located outdoors, it is subject to the influence of the ambient temperature difference between day and night and rainy weather, which can easily cause water accumulation inside the lamp. This water can enter the interior of the street lamp and easily cause internal electrical wiring leakage and other safety hazards. To prevent water vapor from entering, traditional street lamps are equipped with a strong seal. However, this strong seal makes the interior space of the lamp 11 closed. When the street lamp is in use, the internal air pressure of the lamp 11 increases due to heat; when the street lamp is turned off, the internal air pressure decreases. This large fluctuation in operating air pressure can shorten the lamp life and easily damage the street lamp.

[0038] In order to solve the above problems, the present invention improves the lamp device 11 so that it can balance the air pressure inside and outside the lamp without causing a large amount of water accumulation inside the lamp, thereby improving the safety of the lamp device 11 and extending its service life.

[0039] Specifically, if Figure 3As shown, the lighting device 11 includes an LED lamp (not shown), a lampshade 20, and a wind-powered air pressure regulating device 30. The LED lamp is disposed within the lampshade 20, which is mounted on a secondary lamp post 200. The lampshade 20 is provided with an air vent (not shown). The wind-powered air pressure regulating device 30 is disposed on the lampshade 20 and communicates with the air vent. The wind-powered air pressure regulating device 30 includes a wind energy component 300 and an autonomous pressure regulating component 400. The wind energy component 300 is used to control the autonomous pressure regulating component 400 to be turned on or off.

[0040] In this embodiment, if Figure 4 As shown, the autonomous pressure regulating component 400 includes: a fixed base 410, a slot plug 420, a negative pressure deflector 430 and a wind vane 440. The fixed base 410 is arranged on the lampshade 20. The fixed base 410 is provided with a movable accommodating chamber 411. The movable accommodating chamber 411 is connected to the air vent. The slot plug 420 can be movably accommodated in the movable accommodating chamber 411, and the wind energy component 300 controls the slot plug 420 to block or disengage from the air vent, thereby realizing the control of the autonomous pressure regulating component 400 to be closed or opened, and the negative pressure deflector 430 can be rotatably installed on the fixed base 410. The wind vane 440 is fixed on the negative pressure deflector 430. The wind vane 440 will be deflected by wind force, and the direction of the wind vane 440 always remains parallel to the wind direction.

[0041] like Figure 5 and Figure 6 As shown, the fixed base 410 is provided with a first vent 412, which is in communication with the movable accommodating chamber 411. The negative pressure deflector 430 is provided with a second vent 431 and an exhaust slot 432, which is in communication with the first vent 412 and the exhaust slot 432 is in communication with the second vent 431. The wind vane 440 is parallel to the notch of the exhaust slot 432.

[0042] During use, the wind vane 440 deflects in accordance with the wind's direction, thereby driving the negative pressure deflector 430 to deflect, causing the exhaust slot 432 to align with the wind's direction. This accelerates the air flow within the exhaust slot 432, creating a relative negative pressure. This in turn draws air out of the lampshade 20 through the second vent 431 and the first vent 412, thereby reducing moisture within the lampshade 20 and balancing the internal and external air pressures. The specific operating principle will be described below.

[0043] In this embodiment, if Figure 5As shown, the negative pressure deflector 430 is provided with a sleeve portion 433, which is sleeved on the fixed base 410. A blocking ring 434 is disposed within the sleeve portion 433. The fixed base 410 is provided with a carrying ring 413. A accommodating space is formed between the blocking ring 434 and the carrying ring 413, and a thrust bearing 450 is disposed within the accommodating space. The thrust bearing 450 can reduce friction when the negative pressure deflector 430 rotates.

[0044] In this embodiment, if Figure 4 and Figure 5 As shown, the wind energy assembly 300 includes: a cup anemometer 310, a generator 320, a support rod 330 and an electromagnetic suction cup 340. The support rod 330 is passed through the negative pressure deflection member 430 and fixedly mounted on the fixed base 410. One end of the support rod 330 is provided with the generator 320. The cup anemometer 310 is driven and connected to the input shaft of the generator 320. The other end of the support rod 330 is provided with the electromagnetic suction cup 340. The support rod 330 is provided with a wire groove 331 (such as Figure 7 As shown, the electromagnetic chuck 340 and the generator 320 are electrically connected via wires passing through the wire slot 331. The slot plug 420 is provided with a retaining portion 421 and a sealing portion 422. The retaining portion 421 is made of iron and faces the electromagnetic chuck 340. The sealing portion 422 has a conical guide surface.

[0045] During operation, when wind blows, the cup anemometer 310 rotates, driving the generator 320 to generate electricity. This current is then transferred through the wires to the electromagnetic chuck 340. When powered, the electromagnetic chuck 340 generates magnetic force. Since the retaining portion 421 of the slot plug 420 is made of iron, the slot plug 420 is attracted by the electromagnetic chuck 340, freeing it from the air vent in the lampshade 20. This allows the air vent to communicate with the movable accommodating chamber 411 of the fixed base 410, effectively opening the autonomous voltage regulating assembly 400. When wind stops, the cup anemometer 310 stops rotating, and the generator 320 no longer generates current. With power lost, the magnetic force of the electromagnetic chuck 340 also dissipates, freeing the slot plug 420 from the electromagnetic chuck 340 and allowing gravity to drop it to block the air vent, allowing the air vent to separate from the movable accommodating chamber 411, effectively closing the autonomous voltage regulating assembly 400. Moreover, when the slot plug 420 falls, the conical guide surface thereon can guide the slot plug 420, thereby preventing the slot plug 420 from being misplaced and causing an incomplete seal.

[0046] Next, the working principle of the wind energy pressure regulating device 30 of the present invention will be described in conjunction with the above structure. Figure 6 、 Figure 7 and Figure 8 :

[0047] First, it should be noted that, considering the ambient temperature difference between day and night and the influence of rainy weather, it is generally believed that the air inside the lampshade 110 contains more water vapor than the outside air. Moreover, as the LED lamp is used, the temperature of the air inside the lampshade 110 is higher than that of the outside air.

[0048] During use, the wind-powered air pressure regulating device 30 is mounted on the air vent of the lampshade 20. When the autonomous pressure regulating assembly 400 is turned on, the air inside the lampshade 20 can be exchanged with the outside air through the autonomous pressure regulating assembly 400. However, this exchange only occurs when there is wind. The following describes in detail the specific states of the wind-powered air pressure regulating device 30 under various conditions.

[0049] In the absence of wind, Figure 7 As shown, the cup anemometer 310 and the wind vane 440 are both in an unstressed state and remain stationary. In this case, the slot plug 420 blocks the air vents of the lampshade 20 under the action of gravity, isolating the interior of the lampshade 20 from the movable accommodating chamber 411. In this way, the autonomous pressure regulating assembly 400 is in a closed state, and the gas in the lampshade 20 cannot exchange with the external gas.

[0050] In the presence of wind, the cup anemometer 310 rotates due to the wind, thereby driving the generator 320, causing it to generate electricity and supply power to the electromagnetic chuck 340, which in turn generates magnetic force. Because the retaining portion 421 of the slot plug 420 is made of iron, the electromagnetic chuck 340 overcomes the gravity of the slot plug 420 and lifts it, allowing the slot plug 420 to separate from the air vent of the lampshade 20. This connects the interior of the lampshade 20 with the movable accommodating chamber 411, indicating that the autonomous pressure regulating assembly 400 is in the open state, allowing the gas inside the lampshade 20 to exchange with the external air through the autonomous pressure regulating assembly 400.

[0051] At the same time, under the action of wind, Figure 8As shown, the wind vane 440 is deflected by the wind force, thereby driving the negative pressure deflection member 430 to deflect, and after the deflection, the direction of the wind vane 440 remains parallel to the direction of the wind force, so that the direction of the exhaust slot 432 of the negative pressure deflection member 430 is also parallel to the direction of the wind force, so that the wind will enter from the notch on one side of the exhaust slot 432 and blow out from the notch on the other side of the exhaust slot 432. When the wind passes through the exhaust slot 432, it will accelerate the flow of air therein, so that a relative negative pressure is formed in the exhaust slot 432, that is, the air pressure in the exhaust slot 432 is lower than the air pressure in the movable accommodation chamber 411, and the relatively humid and high-temperature gas in the lampshade 20 will be sucked out. Specifically, the gas in the lampshade 20 will pass through: the air vent, the movable accommodation chamber 411, the first air vent 412, the second air vent 431 in sequence, and then enter the exhaust slot 432 and be discharged to the outside, that is, the gas in the lampshade 20 and the outside gas are exchanged with each other;

[0052] After the wind disappears, the cup anemometer 310 stops rotating and the generator 320 no longer generates current. After the power is lost, the magnetic force of the electromagnetic suction cup 340 also disappears, and the slot plug 420 is no longer attracted by the electromagnetic suction cup 340. The slot plug 420 falls to the sealed vent hole under the action of gravity, and the autonomous voltage regulating assembly 400 is in the closed state again.

[0053] It should be noted that the gas inside the lampshade 20 is exchanged with the external gas, which can discharge the moist and high-temperature gas inside the lampshade 20 to the outside, thereby reducing the water vapor in the lampshade 20 and lowering the temperature inside the lampshade 20. At the same time, since the internal and external gases can be exchanged with each other, the air pressure inside the lampshade 20 will not differ too much from the external air pressure, so that the LED lamp can have a more stable working environment. Moreover, under the action of the wind vane 440, the direction of the exhaust groove 432 is always parallel to the wind direction, so that a negative pressure is formed in the exhaust groove 432. After the negative pressure is formed at the exhaust groove 432, the gas flow can be better driven and guided, and the negative pressure gives the gas inside the lampshade 20 an upward suction force, which can better overcome the gravity of the water vapor in the gas, so that the moist gas in the lampshade 20 is easier to discharge.

[0054] It should be further explained that the wind energy assembly 300 controls whether the autonomous pressure regulating assembly 400 is turned on by sensing the presence of wind. This is because the outside air contains dust. If the autonomous pressure regulating assembly 400 is always turned on, then in the absence of wind, the dust in the outside air will settle and fall into the lampshade 20. However, the present invention uses the wind energy assembly 300 to control the autonomous pressure regulating assembly 400 so that it is only turned on in the presence of wind. In this way, the exhaust slot 432 creates a negative pressure, and the air at the vent mainly flows from bottom to top, thereby better preventing the outside air dust from falling into the vent.

[0055] It should be emphasized that whether it is the deflection of the negative pressure deflector 430, the negative pressure generated at the exhaust slot 432, or the control of the wind energy component 300 to open or close the autonomous pressure regulating component 400, all rely on wind power. The wind-powered air pressure regulating device 30 of the present invention not only utilizes wind energy to drive the deflection of the negative pressure deflector 430, but also uses wind power to generate negative pressure, thereby driving gas flow, and also uses wind energy to generate electricity. Thus, the wind-powered air pressure regulating device 30 of the present invention can achieve the above functions using wind power itself without the need for an external power supply or external drive, resulting in a simple structure and efficient use of green wind energy for control and exhaust, thereby saving electricity consumption and reducing costs.

[0056] In one embodiment, the second vent hole 431 is oriented perpendicular to the notch of the exhaust slot 432, and a flaring structure is provided at the notch of the exhaust slot 432. Figure 6 and Figure 7 As shown, the lower groove wall of the flared structure is an outwardly extending inclined surface, and the upper groove wall of the flared structure is an outwardly extending flat surface. This design has the following benefits: First, the outwardly extending inclined surface can expand the cross-sectional area at the notch of the exhaust groove 432, thereby accelerating the gas flow rate in the exhaust groove 432 and making the negative pressure effect more obvious; second, the hole direction of the second vent 431 is perpendicular to the notch direction of the exhaust groove 432, and the upper groove wall of the notch of the exhaust groove 432 is an outwardly extending flat surface, which can provide better shelter during rain, thereby preventing rainwater from entering the exhaust groove 432 and falling into the second vent 431; third, even if water droplets splash into the exhaust groove 432 during rain, the outwardly extending inclined surface can guide the water droplets out of the negative pressure deflector 430, thereby preventing the water droplets from flowing into the second vent 431.

[0057] In one embodiment, an activated carbon filter (not shown) is provided over the second vent 431. The activated carbon filter has a honeycomb-shaped through-hole structure. The activated carbon filter primarily absorbs dust from the air. The addition of the activated carbon filter can further reduce the amount of dust that passes through the second vent 431, thereby keeping the interior of the lampshade 20 clean.

[0058] In one embodiment, Figure 4 and Figure 9As shown, a drainage hole 435 is provided on the side wall of the negative pressure deflector 430, and the drainage hole 435 is connected to the exhaust groove 432. In addition, preferably, the drainage hole 435 is an inclined hole, and a drainage blade 436 is provided on the drainage hole 435. The angle between the inclined direction of the drainage blade 436 and the side wall of the negative pressure deflector 430 is 30° to 60°. By providing the drainage hole 435 and the drainage blade 436, when there is wind, the gas flowing from the outside will further enter the exhaust groove 432 through the drainage hole 435, thereby accelerating the gas flow rate in the exhaust groove 432 and making the negative pressure effect generated by the exhaust groove 432 more obvious.

[0059] In summary, the high-efficiency and low-cost LED street lamp 10 of the present invention is height-adjustable, thereby enhancing its environmental adaptability and facilitating its transportation, thereby reducing the difficulty of transportation.

[0060] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A high-efficiency and low-cost LED street light, characterized by: The telescopic rod group includes a lamp device and a main lamp pole and a sub-lamp pole, the main lamp pole is a hollow structure, the sub-lamp pole can be slidably partially accommodated in the main lamp pole, and the lamp device is installed on the sub-lamp pole; the sub-lamp pole is provided with a positioning clamping hole, the number of the positioning clamping holes is multiple, and the multiple positioning clamping holes are evenly spaced along the sliding direction of the sub-lamp pole; the main lamp pole is provided with a positioning bolt, the positioning bolt is passed through the main lamp pole and can be movably inserted into the positioning clamping hole; The lighting device includes: an LED lamp, a lampshade, and a wind-energy air pressure regulating device, wherein the LED lamp is arranged in the lampshade, the lampshade is mounted on the auxiliary lamp pole, the lampshade is provided with an air vent, and the wind-energy air pressure regulating device is arranged on the lampshade and communicated with the air vent; the wind-energy air pressure regulating device includes a wind energy component and an autonomous pressure regulating component, and the wind energy component is used to control the autonomous pressure regulating component to be turned on or off; The autonomous pressure regulating assembly includes: a fixed base, a slot plug, a negative pressure deflector, and a weather vane. The fixed base is provided on the lampshade and is provided with a movable accommodating cavity, the movable accommodating cavity being communicated with the air vent. The slot plug is movably received in the movable accommodating cavity, and the wind energy assembly controls the slot plug to block or detach from the air vent. The negative pressure deflector is rotatably mounted on the fixed base, and the weather vane is fixed on the negative pressure deflector. The fixed base is provided with a first vent hole, which is in communication with the movable accommodating chamber; the negative pressure deflector is provided with a second vent hole and an exhaust slot, the second vent hole is in communication with the first vent hole, the exhaust slot is in communication with the second vent hole, and the wind vane is parallel to the notch direction of the exhaust slot; The wind energy assembly includes: a cup anemometer, a generator, a support rod and an electromagnetic suction cup, wherein the support rod is passed through the negative pressure deflection member and fixedly mounted on the fixed base, one end of the support rod is provided with the generator, the cup anemometer is drivingly connected to the input shaft of the generator, the other end of the support rod is provided with the electromagnetic suction cup, the support rod is provided with a wire groove, and the electromagnetic suction cup is electrically connected to the generator through the wire groove; The slot plug is provided with a clamping portion and a blocking portion, the clamping portion is an iron structure, and the clamping portion faces the electromagnetic suction cup, and the blocking portion is provided with a conical guiding surface.

2. The high-efficiency and low-cost LED street lamp according to claim 1, characterized in that: The second vent hole is oriented perpendicular to the notch of the exhaust slot, and a flaring structure is provided at the notch of the exhaust slot; The lower groove wall of the expansion structure is an inclined surface extending outward, and the upper groove wall of the expansion structure is a flat surface extending outward.

3. The high-efficiency and low-cost LED street lamp according to claim 2, characterized in that: An activated carbon filter is provided on the second vent hole, and the activated carbon filter adopts a honeycomb-shaped through-hole structure.

4. The high-efficiency and low-cost LED street lamp according to claim 2, characterized in that: The negative pressure deflector is provided with a sleeve portion, which is sleeved on the fixed base. A blocking ring is provided inside the sleeve portion. A carrying ring is provided on the fixed base. An accommodating space is formed between the blocking ring and the carrying ring, and a thrust bearing is provided in the accommodating space.

5. The high-efficiency and low-cost LED street lamp according to claim 1, characterized in that: A drainage hole is provided on the side wall of the negative pressure deflector, and the drainage hole is connected to the exhaust groove; The drainage hole is an inclined hole, and a drainage blade is provided on the drainage hole. The angle between the inclined direction of the drainage blade and the side wall of the negative pressure deflector is 30° to 60°.

Images