Street lamp capable of adjusting angle of lamp panel

Abstract

The utility model discloses a street lamp capable of adjusting the angle of a lamp panel. The street lamp comprises a lampshade, an LED lamp panel and a mechanical arm. The mechanical arm drives the lamp panel to swing in a pitching mode through an ellipsograph mechanism composed of a transverse sliding groove, a vertical sliding groove, a first sliding block, a second sliding block, a swing arm and a steering engine on the T-shaped fixing frame, and switching of the illumination direction of the motor way and the illumination direction of the sidewalk is achieved. The sliding groove is a dovetail groove or a wedge-shaped groove and is matched with rolling friction of balls of the spring plunger, and sliding smoothness and structural stability are improved. The lampshade is formed by assembling an upper lampshade body, a middle cover plate (front / rear cover plate) and a lower lampshade body in a modularized mode, a steering engine and a mechanical arm are arranged in the lampshade, and an LED lamp panel is arranged in the lower lampshade body. The illumination angle of the lamp panel is adjusted through the steering engine, and the illumination requirements in different scenes can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal lighting, specifically to a road lamp with adjustable lamp panel angle. BACKGROUND

[0002] In the field of municipal lighting, road lamps, as an important part of urban infrastructure, their lighting effect, flexibility and energy saving have always been the focus of research and improvement. Traditional road lamps usually adopt fixed-angle lighting mode, which cannot dynamically adjust the light direction according to actual needs, resulting in fixed light range, serious energy waste, and difficulty in taking into account the differentiated lighting needs of motor vehicle lanes and pedestrian lanes. For example, when there are no vehicles or pedestrians on the road, the road lamp still maintains full-power lighting, causing power loss; while during peak hours of people and vehicles, fixed-angle lighting may not accurately cover the areas that need to be illuminated.

[0003] In addition, the structural design of traditional road lamps often lacks modularity and maintainability, and the installation and maintenance of internal components of the lampshade are relatively complex, increasing maintenance costs and time costs. With the advancement of smart city construction, the demand for intelligent control of road lamps is growing, and how to combine sensor technology and mechanical structure to achieve dynamic adjustment of lighting angle has become a key problem to improve the practicality and energy saving of road lamps. SUMMARY

[0004] To solve the above problems, the utility model provides a road lamp with adjustable lamp panel angle, which realizes the pitch swing adjustment of the LED lamp panel through the innovative mechanical arm structure and intelligent control module, and introduces an infrared light camera to realize intelligent perception of the lighting state, providing a new technical solution to solve the limitations of traditional road lamps. The specific scheme is as follows:

[0005] A road lamp with adjustable lamp panel angle, an LED lamp panel is installed in the lampshade of the road lamp, a mechanical arm is installed in the lampshade, the LED lamp panel is installed on the mechanical arm, and the LED lamp panel is driven by the mechanical arm to pitch and swing;

[0006] The mechanical arm comprises a T-shaped fixing frame, one side of the T-shaped fixing frame is provided with a T-shaped sliding groove, and the T-shaped sliding groove is composed of a horizontal sliding groove and a vertical sliding groove which are perpendicular to each other;

[0007] A first sliding block and a second sliding block are respectively slidably arranged in the horizontal sliding groove and the vertical sliding groove, a swing arm is connected between the first sliding block and the second sliding block, both ends of the swing arm are rotatably connected with the first sliding block and the second sliding block, a lamp panel swing rod is rotatably connected to one side of the swing arm, and a connector seat is fixed to the bottom end of the lamp panel swing rod for installing the LED lamp panel,

[0008] A rudder is fixedly installed at the intersection of the horizontal and vertical sliding grooves in the lampshade, a rotating seat is connected to the output shaft of the rudder, and the rotating seat is fixedly connected with the lamp panel swing rod.

[0009] Further, the transverse sliding groove and the vertical sliding groove are dovetail grooves or wedge-shaped sliding grooves.

[0010] The first sliding block and the second sliding block are provided with dovetail sliding blocks or wedge-shaped sliding blocks in sliding cooperation with the transverse sliding groove and the vertical sliding groove.

[0011] Further, the first sliding block and the second sliding block are provided with at least one threaded hole in the thickness direction, and a spring plunger is installed in the threaded hole.

[0012] The spring plunger is composed of a hollow screw and a spring and a ball installed in the hollow screw, the ball protrudes from the end of the spring plunger and is in rolling friction cooperation with the transverse sliding groove or the vertical sliding groove.

[0013] Further, the two ends of the swing arm are rotatably connected with the first sliding block and the second sliding block through stud pins.

[0014] Further, the two ends of the transverse sliding groove and the end of the vertical sliding groove are provided with sealing plates, and the sealing plates are fixedly connected with the T-shaped fixing frame through screws.

[0015] Further, a reinforcing elbow plate is connected between the bottom end of the lamp panel swing rod and the adapter seat.

[0016] Further, the lampshade is assembled by an upper lampshade, an intermediate cover plate and a lower lampshade.

[0017] The upper lampshade is a half water drop shape with the front end arched upward and the rear end tapered.

[0018] The intermediate cover plate is sealingly fixed at the bottom edge of the upper lampshade through screws, and the intermediate cover plate is spliced by a front cover plate and a rear cover plate, and the front cover plate is provided with a rectangular hole.

[0019] The semicircular lower lampshade is sealingly fixedly installed at the bottom of the front cover plate, and

[0020] The steering engine is fixed on the inner wall of one side of the upper lampshade, the mechanical arm is installed in the cavity formed by the upper lampshade, the front cover plate and the lower lampshade, and the lamp panel swing rod and the LED lamp panel installed at the bottom end thereof are located in the lower lampshade.

[0021] Further, the connection portions of the front cover plate and the rear cover plate are respectively provided with matching steps, and the end portion of the rear cover plate is tightly pressed between the front cover plate and the upper lampshade.

[0022] Further, the rear cover plate is provided with an infrared light camera inclined toward the ground on the lower surface, and a control circuit board is installed on the upper surface of the rear cover plate, and the control circuit board comprises a power module and a processing chip connected with the infrared light camera and the steering engine.

[0023] The adjustable lamp panel angle street lamp has the following advantages:

[0024] 1. Lighting angle is flexibly adjustable: through the structure of the compass arm (T-shaped sliding groove, sliding block, swing arm and rudder), the LED lamp panel is driven to realize pitching swing, accurately switch the lighting direction of the vehicle lane and the pedestrian lane, and meet the needs of different scenes.

[0025] 2. Stable and reliable structure:

[0026] 2.1 The dovetail groove / wedge groove cooperates with the sliding block to prevent falling out and reduce friction;

[0027] 2.2 The spring plunger reduces resistance through ball rolling friction, has a micro-positioning function, and improves the smoothness and angle stability of movement;

[0028] 2.3 The reinforced elbow plate enhances the support strength of the lamp panel swing rod and suppresses vibration.

[0029] 3. Modular design is easy to maintain: the lampshade is modularly assembled by the upper lampshade, the middle cover plate (front / rear cover plate) and the lower lampshade, and each component is connected through screws, so that the internal elements can be easily installed, repaired and replaced, and the maintenance cost is reduced.

[0030] 4. Intelligent energy saving: the rear cover plate integrates an infrared light camera and a control circuit board, can sense pedestrians / vehicles in real time, realize "on-demand lighting" - turn off or low power consumption when there is no target, automatically adjust the angle and turn on when there is a target, and is expected to save energy by 30%-50%.

[0031] 5. Excellent protection performance: the streamlined lampshade design reduces wind resistance, the stepped sealing structure is combined with the waterproof glue groove to ensure dustproof and waterproof effect, and adapts to complex outdoor environment. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0033] Figure 1 It is the middle cover plate of the lampshade of the utility model and the mechanical arm structure diagram arranged in the lampshade.

[0034] Figure 2 It is the schematic view of the mechanical arm of the compass mechanism driving the lamp panel to swing to the right side.

[0035] Figure 3 It is the schematic view of the mechanical arm of the compass mechanism driving the lamp panel to swing to the vertical plane.

[0036] Figure 4 It is the schematic view of the mechanical arm of the compass mechanism driving the lamp panel to swing to the left side.

[0037] Figure 5 T-shaped bracket structure diagram with T-shaped sliding chute;

[0038] Figure 6 Structure diagram of lamp plate swing lever;

[0039] Figure 7 Structure diagram of first and second sliding blocks and swing arm therebetween;

[0040] Figure 8 Back view of first or second sliding block with spring plunger installed;

[0041] Figure 9 Perspective view of upper lamp cover;

[0042] Figure 10 Bottom view of upper lamp cover;

[0043] Figure 11 Front cover plate structure diagram of middle cover plate;

[0044] Figure 12 Top view of rear cover plate of middle cover plate;

[0045] Figure 13 Bottom view of rear cover plate;

[0046] Figure 14 Bottom view of upper lamp cover with front and rear cover plates installed;

[0047] Figure 15 Figure 14 Schematic diagram in another perspective view;

[0048] Figure 16 Perspective view of lower lamp cover. DETAILED DESCRIPTION

[0049] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail to avoid obscuring aspects of the present application.

[0050] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description in order to explain the technical solutions of the present application. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can have other embodiments.

[0051] ​The adjustable lamp panel angle street lamp is mainly composed of a lampshade, an LED lamp panel 200 and a mechanical arm 300.

[0052] When the illumination angle needs to be adjusted, the steering wheel 319 receives a control signal, drives the output shaft to rotate, drives the lamp panel swing rod 317 to rotate around the steering wheel shaft center through the rotating seat 320. At this time, the swing arm 316 connected with the lamp panel swing rod 317 pushes the first sliding block 314 (in the horizontal sliding groove 312) and the second sliding block 315 (in the vertical sliding groove 313) to slide respectively, and since the horizontal sliding groove and the vertical sliding groove are perpendicular to each other, the movement track of the swing arm 316 is approximately an elliptical arc, so that the LED lamp panel 200 is swung in a pitching manner within a range of ±45°, and the motorway or the sidewalk is accurately covered.

[0053] The T-shaped fixed frame 310 of the mechanical arm 300 is provided with a T-shaped sliding groove 311, which is composed of a horizontal sliding groove 312 and a vertical sliding groove 313 which are perpendicular to each other. The horizontal sliding groove 312 allows the first sliding block 314 to slide horizontally, and the vertical sliding groove 313 allows the second sliding block 315 to slide vertically, and the two are connected as a linkage mechanism through the swing arm 316.

[0054] In order to improve the structural stability, the horizontal sliding groove 312 and the vertical sliding groove 313 are designed as dovetail grooves or wedge grooves (as shown in Figure 5 The end portions of the first sliding block 314 and the second sliding block 315 matched therewith are provided with dovetail sliding blocks or wedge sliding blocks of corresponding shapes. By using the horizontal limiting property of the dovetail / wedge structure, the sliding block can be effectively prevented from being pulled out of the sliding groove, and at the same time, the sliding friction is reduced through the inclined surface contact, so that the movement of the mechanical arm is smoother. In addition, the inner wall of the sliding groove is precisely machined, and the surface roughness is low, which further reduces the mechanical loss.

[0055] The first sliding block 314 and the second sliding block 315 are provided with threaded holes in the thickness direction, and a spring plunger (as shown in Figure 8The spring plunger is composed of a hollow screw, a compression spring, and a ball 321 : the ball 321 is exposed at the end of the plunger and forms a rolling friction with the inner wall of the sliding groove (the bottom of the horizontal sliding groove 312 or the side of the vertical sliding groove 313). When the sliding block slides, the ball 321 is tightly attached to the surface of the sliding groove under the action of the spring force, and the rolling replaces the traditional sliding friction, reducing the resistance by about 60%-80%, while the buffer effect of the spring can absorb the impact of movement and avoid rigid collision.

[0056] In addition, the spring plunger also has a micro-positioning function: when the LED light plate 200 is adjusted to the target angle, the ball 321 is embedded in the slight indentation (if any) or stable position of the sliding groove surface, which, in combination with the self-locking feature of the rudder, can prevent the light plate from being deviated due to external forces (such as wind), ensuring the stability of the lighting angle.

[0057] The two ends of the swing arm 316 are rotationally connected to the first sliding block 314 and the second sliding block 315 through a stud pin shaft 322 (as shown in Figure 7 The stud pin shaft is made of stainless steel, one end is a threaded segment (fixed with the sliding block threaded hole), and the other end is a smooth cylindrical segment (inserted into the swing arm connection hole), forming a hinged pair. This connection allows the swing arm 316 to rotate freely relative to the sliding block, while preventing loosening through nut locking.

[0058] The design of the hinged structure ensures the flexibility of the mechanical arm during movement: when the rudder drives the light plate swing lever 317 to rotate, the swing arm 316 can perform a composite motion of sliding with the sliding block and rotating itself, thereby realizing the trajectory output of the elliptical mechanism. In addition, the pin connection is provided with a wear-resistant bushing (such as copper alloy or high polymer material), which reduces wear caused by long-term rotation and prolongs the service life of the mechanical arm.

[0059] Both ends of the horizontal sliding groove 312 and the end of the vertical sliding groove 313 are installed with an end plate 323 (as shown in Figure 5 The end plate is fixedly connected with the T-shaped fixed frame 310 through screws. The main functions of the end plate include: 1) travel limiting: preventing the first sliding block 314 and the second sliding block 315 from sliding out of the end of the sliding groove, avoiding mechanical arm structure failure; 2) structural reinforcement: enhancing the overall rigidity of the T-shaped fixed frame 310, especially when the mechanical arm bears a large load, reducing the risk of sliding groove deformation. The end plate material is usually the same as the T-shaped fixed frame, such as aluminum alloy or engineering plastic, and the surface is treated with anodizing or plating to improve corrosion resistance.

[0060] The elbow plate 324 (as shown in Figure 6The reinforcing elbow plate is in right-angled triangle shape, and two right-angled sides are fixed with the lamp plate swing rod and the adapter seat respectively to form a triangle stable structure. The reinforcing elbow plate has the following effects: 1) dispersing stress: the weight of the LED lamp plate 200 and the inertial force during swinging are transmitted to the lamp plate swing rod through the adapter seat, and the reinforcing elbow plate 324 can convert the concentrated stress into tensile and compressive stress in the elbow plate plane, so that bending deformation or fracture of the connection part is avoided; 2) improving the anti-vibration property: when the street lamp is vibrated by the outside, the reinforcing elbow plate can inhibit the small amplitude vibration of the lamp plate swing rod, so that the lighting stability is ensured.

[0061] The lampshade of the utility model adopts modular structure, and the upper lampshade 110, the middle cover plate 120 and the lower lampshade 130 are sealedly connected through screws (as shown in Figure 9 、 Figure 16 ):

[0062] The upper lampshade 110 is in half water drop shape, the front end is arched upward, and the rear end is in conical shape. The streamline design can reduce the wind resistance, and meanwhile provides sufficient installation space for the internal mechanical arm 300. The material is usually high-strength PC (polycarbonate), which has the characteristics of impact resistance and ultraviolet resistance;

[0063] The middle cover plate 120 is spliced by the front cover plate 121 and the rear cover plate 122. The front cover plate 121 is provided with a rectangular hole 123 (as shown in Figure 11 ), which is used for the space through which the mechanical arm passes. The front cover plate and the rear cover plate are fitted through the stepped structure (the first step 1211 at the rear end of the front cover plate and the second step 1221 at the front end of the rear cover plate), and the end of the rear cover plate is tightly pressed between the bottom edge of the upper lampshade 110 and the front cover plate, so that the waterproof seal is formed. Meanwhile, the first step 1211 at the rear end of the front cover plate 121 tightly presses the second step 1221 at the front end of the rear cover plate 122 at the bottom edge 112 of the upper lampshade 110, so that the rear end of the front cover plate 121 tightly fixes the front end of the rear cover plate 122.

[0064] The lower lampshade 130 is a semicircular transparent cover, which is made of optical grade PMMA (acrylic) material, and the light transmittance is more than 92%. The arc design can preliminarily refract the light of the LED lamp plate 200 and expand the lighting range.

[0065] During assembly, the steering wheel 319 is fixed on the inner wall of the upper lampshade 110 through screws, the mechanical arm 300 is located in the cavity formed by the upper lampshade, the front cover plate and the lower lampshade, and the LED lamp plate 200 is hidden in the lower lampshade 130, so that the internal components are protected and the appearance is clean.

[0066] The connection part of the front cover plate 121 and the rear cover plate 122 adopts a stepped rabbet structure (as shown in Figure 14 、 Figure 15The front cover plate extends downward at the rear end to form a first step 1211, and the rear cover plate extends upward at the front end to form a second step 1221. When the two steps are engaged, the front cover plate, the rear cover plate and the bottom edge 112 of the upper lampshade 110 are fixed by screws. This design has the following advantages: 1) precise positioning: the step structure can ensure that the front and rear cover plates are precisely aligned in the horizontal and vertical directions, avoiding assembly deviation affecting the sealing performance of the lampshade; 2) waterproof and dustproof: the step contact surface is coated with sealing glue, and the screws are tightened to form a double seal, effectively preventing rainwater and dust from entering the inside of the lampshade; 3) uniform force transmission: the weight of the rear cover plate and external loads are evenly transmitted to the upper lampshade through the step structure, avoiding local stress concentration.

[0067] A groove is arranged around the rectangular hole 123 on the lower surface of the front cover plate 121, and the edge of the lower lampshade 130 is embedded in the groove to enhance sealing and fixation. A glue groove is arranged in the groove, and the two are fixed by waterproof adhesive. The waterproof effect of the joint is ensured during fixation.

[0068] An infrared camera 124 (as shown in FIG. 12) is arranged on the lower surface of the rear cover plate 122 in an inclined manner. The lens of the camera faces the ground and has a viewing angle covering the motor vehicle lane and the pedestrian lane below the street lamp. Figure 13

[0069] A control circuit board (as shown in FIG. 13) is arranged on the upper surface of the rear cover plate 122. The control circuit board includes: Figure 12

[0070] A power module 125: converts the 220V alternating current input by the street lamp into direct current low voltage (such as 12V) to supply power to the steering engine 319, the camera 124 and the processing chip 127;

[0071] The processing chip 127: adopts an ARM or single-chip structure and is internally provided with an image recognition algorithm. The chip can analyze the image collected by the camera in real time to determine whether a pedestrian or a vehicle enters the lighting area. When a target is detected, the chip sends an instruction to the steering engine 319 to adjust the angle of the lamp panel and turn on the LED lamp panel 200. When there is no target in the area, the control circuit board controls the lamp panel to be turned off or to enter a low-power mode, thereby realizing "on-demand lighting" and achieving an energy saving of 30%-50%.

[0072] In addition, the control circuit board can be connected to the urban lighting management system through a wireless module (such as WiFi or 5G) to support remote monitoring and parameter adjustment, thereby further improving the intelligent level.

[0073] In summary, the utility model realizes dynamic adjustment of the angle of the lamp panel through the elliptical ruler mechanical arm, combines infrared sensing and intelligent control, and solves the problems of fixed lighting angle and high energy consumption of traditional street lamps. The utility model has the following advantages:

[0074] ​​1) Flexible lighting: the lamp panel swing angle is large, and the motor lane and sidewalk lighting modes can be quickly switched;

[0075] 2) Energy saving and high efficiency: the infrared camera can realize real-time sensing of road conditions, avoid invalid lighting, and meet the green energy saving trend;

[0076] 3) Reliable structure: modular design facilitates installation and maintenance, and details such as dovetail grooves and spring plungers improve mechanical stability;

[0077] 4) Intelligent linkage: can be connected to the smart city system, and provides a hardware foundation for future vehicle-road cooperation and Internet of Things lighting.

[0078] The preferred embodiments of the utility model are described above. It should be understood that the utility model is not limited to the specific implementation described above, and the equipment and structures not fully described should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the utility model or modify equivalent embodiments without departing from the scope of the technical solutions of the utility model by using the disclosed methods and technical content, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, which does not depart from the content of the technical solutions of the utility model, still belongs to the scope of protection of the technical solutions of the utility model.

Claims

1. A street light with an adjustable lamp panel angle, wherein an LED lamp panel is installed inside the lamp cover, characterized in that, A robotic arm is installed inside the lampshade, and the LED light panel is mounted on the robotic arm. The robotic arm drives the LED light panel to tilt and swing. The robotic arm includes a T-shaped fixed frame, and a T-shaped slide is provided on one side of the T-shaped fixed frame. The T-shaped slide consists of intersecting horizontal slides and vertical slides. A first slider and a second slider are slidably installed in a horizontal slide groove and a vertical slide groove, respectively. A swing arm connects the first slider and the second slider, with both ends of the swing arm rotatably connected to the first slider and the second slider, respectively. A lamp panel swing arm is rotatably connected to one side of the swing arm, and an adapter is fixed at the bottom end of the lamp panel swing arm for mounting the LED lamp panel. A servo motor is fixedly installed inside the lamp cover at the intersection of the horizontal and vertical slides. The output shaft of the servo motor is connected to a rotating seat, which is fixedly connected to the lamp panel swing arm.

2. A street light with an adjustable lamp panel angle as described in claim 1, characterized in that, The horizontal and vertical grooves are dovetail grooves or wedge-shaped grooves; The first and second sliders are equipped with dovetail sliders or wedge sliders that slide in conjunction with the horizontal and vertical grooves.

3. A street light with an adjustable lamp panel angle as described in claim 2, characterized in that, Both the first slider and the second slider have at least one threaded hole through them in the thickness direction, and a spring plunger is installed in the threaded hole. The spring plunger consists of a hollow thread, a spring, and balls installed inside the hollow thread. The balls protrude from the end of the spring plunger and roll and rub against a transverse or vertical groove.

4. A street light with an adjustable lamp panel angle as described in claim 1, characterized in that, The two ends of the swing arm are rotatably connected to the first and second sliders via stud pins.

5. A street light with an adjustable lamp panel angle as described in claim 1, characterized in that, Both ends of the horizontal slide and the end of the vertical slide are equipped with sealing plates, which are fixedly connected to the T-shaped fixing bracket by screws.

6. A street light with an adjustable lamp panel angle as described in claim 1, characterized in that, A reinforcing elbow plate connects the bottom of the lamp panel swing arm to the adapter.

7. A street light with an adjustable lamp panel angle as described in claim 1, characterized in that, The lampshade is assembled from an upper lampshade, a middle cover plate, and a lower lampshade. The upper lampshade is a semi-tear shape with the front end arched upwards and the rear end tapered. The middle cover is fixed to the bottom edge of the upper lampshade by screws. The middle cover is made up of a front cover and a rear cover. The front cover has a rectangular hole. The semi-circular lower light cover is fixedly installed at the bottom of the front cover plate with screws; among which, The servo motor is fixed to the inner wall of one side of the upper lamp cover. The robotic arm is installed in the cavity formed by the upper lamp cover, the front cover plate, and the lower lamp cover. The lamp panel swing arm and the LED lamp panel installed at its bottom are both located inside the lower lamp cover.

8. A street light with an adjustable lamp panel angle as described in claim 7, characterized in that, The front cover and the rear cover are respectively provided with matching steps at the connection point, and the end of the rear cover is pressed between the front cover and the upper lamp cover.

9. A street light with an adjustable lamp panel angle as described in claim 7, characterized in that, An infrared camera tilted towards the ground is provided on the lower surface of the rear cover. A control circuit board is installed on the upper surface of the rear cover. The control circuit board includes a power module and a processing chip connected to the infrared camera and servo motor.

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