Solar street lamp

Abstract

The invention belongs to the technical field of lighting equipment, and particularly relates to a solar street lamp which achieves the effect of instantly shaking off accumulated snow on a photovoltaic cover plate in the unlocking process by arranging a locking structure of an ingenious structure. The light sensor and the chip are arranged on the surface of the photovoltaic cover plate and the lamp post respectively, whether snow shielding exists or not is judged according to sensor signals received by the chip, the belt is driven to move the photovoltaic cover plate repeatedly, and the accumulated snow is shaken off through repeated unlocking and locking actions when necessary.

Description

Technical Field

[0001] The invention belongs to the technical field of lighting equipment, and in particular relates to a solar street lamp. Background Art

[0002] In the prior art, solar street lights generally have the lamp body and solar photovoltaic panels fixed on the lamp post. In order to obtain sufficient light energy, the area of ​​the solar photovoltaic panel is designed to be relatively large, which will also result in a larger windward area. In severe weather conditions, there is a risk of breaking and falling.

[0003] On the other hand, in snowy weather, the solar photovoltaic panels of street lamps in the prior art are often covered by snow, resulting in the inability to receive light. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a solar street lamp which can realize the folding of solar photovoltaic panels and achieve a certain degree of snow shaking-off function.

[0005] The technical solution proposed by the present invention is: a solar street light, comprising a lamp post, a light box, a photovoltaic cover, a solar photovoltaic panel arranged in the light box, a driving belt arranged in the light box and a wind speed sensor arranged on the light box; the photovoltaic cover is tied to the driving belt, and the photovoltaic cover can slide forward and backward relative to the light box under the pull of the driving belt to expose the solar photovoltaic panel and cover the solar photovoltaic panel; the wind speed sensor monitors the wind speed signal to drive the driving belt to move; A locking mechanism is provided between the light box and the photovoltaic cover, the locking mechanism comprising a push-rebound latch mounted on the photovoltaic cover, a lock body mounted on the inner side of the light box, a wedge-shaped lock tongue movable along a slide groove in the lock body, and a reset spring at the bottom of the latch; In the locked state, the rear side of the latch abuts against the inner side of the light box, preventing the photovoltaic cover from sliding further downward; Unlocking process: the driving belt pulls the photovoltaic cover to slide forward, and the front side of the latch (guide surface) abuts against the rear side (vertical surface) of the lock tongue, forcing the lock tongue to slide forward until the latch retracts and passes over the lock tongue; then the driving belt pulls the photovoltaic cover in the opposite direction, and the rear side of the latch abuts against the front side (wedge-shaped surface) of the lock tongue and pushes the lock tongue to move backward until it abuts against the inner wall of the light box. Driven by the continued driving belt, the latch will retract along the wedge-shaped surface of the lock tongue until it passes over the lock tongue and the inner wall of the light box, thereby achieving unlocking.

[0006] The locking process is: the driving belt drives the photovoltaic cover to move upward until the front side (guide surface) of the latch abuts against the outer wall of the light box and then retracts and passes over the side wall of the light box. After passing the side wall of the light box, the latch pops up again to achieve locking.

[0007] Furthermore, a sliding assembly is provided between the photovoltaic cover and the light box to guide the relative movement of the two. The sliding assembly consists of sliding rods fixedly installed on both sides of the light box and sliding seats arranged on the sliding rods and capable of sliding along the sliding rods. The sliding seats are detachably installed on the photovoltaic cover 3; the sliding seat includes a sliding block and a flat-headed latch, and a sliding seat spring is sleeved on the flat-headed latch.

[0008] Furthermore, light sensors and chips are respectively arranged on the surface of the photovoltaic cover and the lamp post. When the chip receives inconsistent sensor signals from the surface of the photovoltaic cover and the sensor signals on the lamp post, it immediately drives the belt to repeatedly perform unlocking and locking actions.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes the effect of shaking off the snow on the photovoltaic cover plate instantly during the unlocking process by setting a locking structure with an ingenious structure; Secondly, the present invention respectively arranges light sensors and chips on the surface of the photovoltaic cover and the lamp pole, determines whether there is snow cover according to the sensor signal received by the chip, and then drives the belt to repeatedly move the photovoltaic cover, and shakes off the snow by repeatedly unlocking and locking when necessary. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the present invention after removing the photovoltaic cover; Figure 3 This is a schematic diagram of the specific structure of the photovoltaic cover plate of the present invention; Figure 4 This is a cross-sectional view of the photovoltaic cover of the present invention after it is opened; Figure 5 It is a cross-sectional view of the photovoltaic cover plate of the present invention after being folded; Figure 6 Schematic diagram of the locking mechanism of the present invention in different states; Figure 7 It is a schematic diagram of the latch of the locking mechanism of the present invention lifting the photovoltaic cover; DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0013] like Figure 1-7 As shown, the solar street light of this embodiment consists of a lamp post 1, a light box 2, a photovoltaic cover 3 and a wind speed sensor 4; the light box 2 is arranged obliquely on the top of the lamp post 1, and above the light box 2 is a photovoltaic cover 3 that can be translated downward, and the light box 2 is provided with parallel arranged solar photovoltaic panels 5 and a driving belt 6 (driven by a micro motor); the driving belt 6 is connected to the photovoltaic cover 3 through a binding seat; a sliding assembly 7 is provided between the photovoltaic cover 3 and the light box 2 to guide the relative movement of the two, and the sliding assembly 7 consists of a sliding rod 701 fixedly mounted on both sides of the light box and a sliding seat 702 arranged on the sliding rod 701 and able to slide along the sliding rod 701, and the sliding seat 702 is detachably mounted on the photovoltaic cover 3; the sliding seat 702 includes a slider 7021 and a flat head latch 7022, and a sliding seat spring 7023 is sleeved on the flat head latch 7022.

[0014] The wind speed sensor 4 is used to monitor the wind speed. If the weather is fine and the wind speed is within the normal range, the photovoltaic cover 3 slides downward under the drive belt 6 to obtain a larger light receiving area (that is, the solar photovoltaic panel 5 and the photovoltaic cover 3 are simultaneously exposed to light); when the wind speed sensor 4 monitors that the wind speed is within the abnormal range, the photovoltaic cover 3 slides upward under the drive belt 6 to reduce the windward area and reduce the risk of damage.

[0015] One of the cleverness of this design is that in order to ensure that the photovoltaic cover 3 is locked in position after being folded, a locking mechanism 8 is provided between the light box 2 and the photovoltaic cover 3. The locking mechanism 8 includes a push-rebound latch 801 installed on the photovoltaic cover 3, a lock body 802 installed on the inner side of the light box 2, a wedge-shaped lock tongue 803 that can move along the slide groove in the lock body is provided in the lock body 802, and a return spring 804 is provided at the bottom of the latch 801.

[0016] refer to Figure 5-Figure 6 , the working principle of the locking mechanism 8 is: Locked state: when the photovoltaic cover 3 has not moved relative to the light box 2 and the locking structure 8 is in the locked state, the rear side of the latch 801 abuts against the inner side of the light box 2, so that the photovoltaic cover 3 cannot slide further downward.

[0017] Unlocking process: In order to unlock and move the photovoltaic cover 3 to expose the solar photovoltaic panel 4, the photovoltaic cover 3 first slides upward for a distance driven by the driving belt 6 so that the front side (guide surface 8011) of the latch 801 abuts against the rear side (vertical surface 8031) of the lock tongue 803. Since the latch 801 can be retracted, the photovoltaic cover 3 continues to slide upward driven by the driving belt 6 until the latch 801 retracts and passes over the lock tongue 803, and then the driving belt 6 drives the photovoltaic cover 3 to move in the reverse direction, and the rear side of the latch 801 abuts against the lock tongue 803. The front side of the tongue 803 (wedge-shaped surface 8032) pushes the lock tongue 803 to move backward until it rests against the inner wall of the light box 2. Under the continued drive of the driving belt 6, the latch 801 will retract along the wedge-shaped surface of the lock tongue 803 until it passes over the lock tongue 803 and the inner wall of the light box 8, thereby achieving unlocking. After unlocking, the lock tongue 803 returns to its initial position under the action of the lock tongue return spring 805, and the photovoltaic cover 3 continues to slide downward until the sliding seat 702 moves to the lower stop position, and the photovoltaic cover 3 and the solar photovoltaic panel 5 are fully unfolded to receive light.

[0018] Re-locking process: When the wind speed sensor 4 detects abnormal wind speed, the driving belt 6 drives the photovoltaic cover 3 to move upward until the front side of the pin 801 abuts against the side wall of the light box. As the driving belt 6 continues to rotate, the pin 801 will retract and pass over the side wall of the light box. After passing the side wall, the pin 801 will pop out again. At this time, the rear side of the pin 801 abuts against the inner wall of the light box 2 to achieve locking.

[0019] The second cleverness of this design is that the photovoltaic cover 3 will vibrate at the moment of unlocking and re-locking, which is conducive to shaking off snow on snowy days.

[0020] The specific working principle is: Figure 7In rainy and snowy weather, the surface of the photovoltaic cover 3 is covered with some snow. Driven by the driving belt 6, the photovoltaic cover 3 first slides upward for a distance to make the front side of the latch 801 (guide surface 8011) abut against the rear side of the lock tongue 8c (vertical surface 8031). Since the latch 801 can be retracted, the photovoltaic cover 3 continues to slide upward driven by the driving belt 6 until the latch 801 retracts and passes over the lock tongue 803, and then the driving belt 6 drives the photovoltaic cover 3 to move in the reverse direction, and the rear side of the latch 801 abuts against the front side (wedge-shaped surface 8032) of the lock tongue 803 and pushes the lock tongue 803 to move backward until it abuts against the inner wall of the light box 2. Under the continued drive of the drive belt 6, the latch 801 will retract along the wedge-shaped surface of the lock tongue 803, but after the latch 801 retracts until its top rests against the inner wall of the photovoltaic cover 3, the latch 801 will lift the photovoltaic cover 3 under the continued drive of the drive belt 6 (in this process, the slider 7021 of the sliding seat 7 will also adaptively move on the flat-head latch 7022 to adapt to the sliding of the photovoltaic cover 3). When the latch 801 moves along the wedge-shaped surface of the lock tongue 803 until it passes over the inner wall of the light box 8, the photovoltaic cover 3 will return to its position before lifting under the pull of the drive belt 6 (i.e., it will shake in the same direction), and the accumulated snow may be cleared.

[0021] In order to realize the function of active shaking and snow removal, it is also necessary to set light sensors and chips (very low-cost single-chip microcomputers can be used) on the surface of the photovoltaic cover 3 and the lamp post 1 respectively. In rainy and snowy weather, snow cannot cover the lamp post (the lamp post is upright). If the chip receives inconsistent sensor signals on the surface of the photovoltaic cover 3 and the sensor signals on the lamp post 1, it can be determined that the snow has covered the photovoltaic cover. The micro motor is randomly started to make the drive belt repeatedly pull the photovoltaic cover 3. If necessary, the unlocking and locking actions are repeatedly implemented to realize the function of shaking and snow removal.

[0022] Of course, in order to realize the above invention, it is also necessary to set necessary programs for the chip. For example, in order to prevent the micro motor from overloading, when the photovoltaic cover 3 moves to the lower dead point, the micro motor stops working; when the photovoltaic cover 3 moves to the upper dead point, the micro motor also stops working. Of course, a travel switch can also be set, and the micro motor stops working after the belt rotates a certain distance.

[0023] It should be noted that these can be realized by those skilled in the art with the help of existing technologies based on the concepts and ideas of the present invention.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar street light, comprising a lamp post and a light box, characterized in that: It also includes a photovoltaic cover, a solar photovoltaic panel arranged in a light box, and a driving belt arranged in the light box; the photovoltaic cover is tied to the driving belt, and the photovoltaic cover can slide forward and backward relative to the light box under the pull of the driving belt to expose the solar photovoltaic panel and cover the solar photovoltaic panel; The surface of the photovoltaic cover and the lamp post are respectively provided with a light sensor and a chip. When the chip receives a sensor signal on the surface of the photovoltaic cover and a signal from the optical fiber sensor on the lamp post that is inconsistent, it immediately drives the belt to repeatedly pull the photovoltaic cover back and forth to shake off the snow. Also includes a wind speed sensor and a locking mechanism; The wind speed sensor monitors the wind speed signal to drive the drive belt to move; The locking mechanism comprises a push-rebound latch mounted on the photovoltaic cover plate, a lock body mounted on the inner side of the light box, a wedge-shaped lock tongue movable along a slide groove in the lock body, and a return spring at the bottom of the latch; The locked state is: the rear side of the latch abuts against the inner side of the light box so that the photovoltaic cover cannot slide further downward; Unlocking process: the driving belt pulls the photovoltaic cover plate to slide forward, and the front side of the latch abuts against the rear side of the lock tongue, forcing the lock tongue to slide forward until the latch retracts and passes over the lock tongue; then the driving belt pulls the photovoltaic cover plate in the opposite direction to move, and the rear side of the latch abuts against the front side of the lock tongue and pushes the lock tongue to move backward until it abuts against the inner wall of the light box. Under the continuous drive of the driving belt, the latch will retract along the wedge surface of the lock tongue until it passes over the lock tongue and the inner wall of the light box, thereby achieving unlocking; The locking process is: the driving belt drives the photovoltaic cover plate to move upward until the front side of the latch abuts against the outer wall of the light box and then retracts and passes over the side wall of the light box, and after passing over the side wall of the light box, the latch pops up again to achieve locking; A sliding assembly is provided between the photovoltaic cover plate and the light box to guide the relative movement of the two. The sliding assembly consists of sliding rods fixedly mounted on both sides of the light box and sliding seats arranged on the sliding rods and capable of sliding along the sliding rods. The sliding seats are detachably mounted on the photovoltaic cover plate. The sliding seats include a slider and a flat-head latch. A slider spring is sleeved on the flat-head latch. The slider can move up and down along the flat-head latch and reset under the action of the slider spring. When the latch is in contact with the lock tongue, the latch can lift up the photovoltaic cover; when the latch passes over the lock tongue, the latch is reset and the photovoltaic cover returns to the position before the lifting.

2. The solar street light according to claim 1, characterized in that: After the chip receives a sensor signal on the surface of the photovoltaic cover that is inconsistent with the sensor signal on the lamp post, it immediately drives the belt to repeatedly pull the photovoltaic cover to perform unlocking and locking actions.

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