Dimmable energy-saving LED street lamp

Abstract

The invention discloses a dimmable energy-saving LED street lamp, and relates to the technical field of street lamps. The street lamp comprises a main body seat, a mounting rod arranged on the main body seat, a photovoltaic panel and a fixing cylinder fixedly mounted on the surface of the mounting rod, a mounting cylinder fixedly mounted on the surface of the fixing cylinder, and a transparent cover fixedly mounted on the surface of the mounting cylinder; the lighting mechanism comprises a plurality of lighting bulbs mounted in the mounting cylinder, an electrifying connector is fixedly mounted on the surface of each lighting bulb, every three electrifying connectors form a group, and one group of electrifying connectors penetrate through the rotating cylinder and are fixedly connected with the rotating cylinder; the two groups of power transmission blocks are arranged at intervals, so that power is cut off at intervals in the lighting bulb extinguishing process, the situation that the service life of the lighting bulb is affected due to the fact that heat generated in the lighting bulb is excessively concentrated in the brightness adjusting process of the lighting bulb is avoided, and meanwhile the luminous intensity is adjusted by adjusting the number of the luminous lighting bulbs; and the service life reduction caused by continuous work of the lighting bulb is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of street lamps, and in particular to a dimmable energy-saving LED street lamp. Background Art

[0002] At present, with the development of science and technology, the equipment in public areas is also constantly being upgraded and renovated to facilitate people's daily lives, including the use of street lamps. Street lamps have greatly improved the convenience of traveling at night and ensured the safety of people's travel. At the same time, street lamps can also allow people to enjoy the night scenery. Therefore, the production and manufacturing of street lamps are also constantly improving.

[0003] At present, when street lamps are used, conventional street lamps adjust different voltage values ​​through the sliding rheostat set inside, so as to adjust the brightness of the street lamps and achieve the purpose of energy saving. However, in actual use, although the brightness is adjusted to adapt to the external environment, the internal street lamp bulbs are still working continuously, resulting in a short service life of the street lamp bulbs, which greatly affects the lighting work at night after damage.

[0004] Based on this, the present invention designs a dimmable energy-saving LED street lamp to solve the above problems. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a dimmable energy-saving LED street lamp, aiming to solve the technical problems existing in the prior art mentioned in the background technology.

[0006] The embodiment of the present invention is implemented as follows: a dimmable energy-saving LED street lamp, the street lamp comprising: Main body seat: comprising a mounting rod arranged on the main body seat, the surfaces of the mounting rod are respectively fixedly mounted with a photovoltaic panel and a fixing tube, the surface of the fixing tube is fixedly mounted with a mounting tube, and the surface of the mounting tube is fixedly mounted with a transparent cover; The lighting mechanism comprises a plurality of lighting bulbs installed inside the installation cylinder, and a power connector is fixedly installed on the surface of each lighting bulb, and every three power connectors form a group, and each power connector of a group passes through the rotating cylinder and is fixedly connected to the rotating cylinder. Only one power connector in a group of power connectors contacts the surface of the power transmission block, and the power transmission block is fixedly installed on the inner wall of the circular cylinder, and the curvatures of the plurality of power transmission blocks in the direction of the central axis of the circular cylinder are sequentially distributed in two groups of arithmetic progressions, and the two groups of power transmission blocks are distributed at intervals, and the curvatures of adjacent power transmission blocks in the two groups are correspondingly equal; Rotating mechanism: used to drive the circular cylinder to rotate and adjust the brightness; Driving mechanism: used to provide feedback on the brightness of the external environment and drive the rotating mechanism to move.

[0007] Furthermore, the rotating mechanism includes an L-shaped pull rod that passes through the fixed cylinder and is slidably connected to the fixed cylinder, the L-shaped pull rod is in contact with the spiral groove, the spiral groove is provided on the inner wall of the inner rotating cylinder, an inner protrusion block is fixedly installed on the surface of the inner rotating cylinder, a fixed groove cylinder is fixedly installed on the surface of the fixed cylinder, the inner protrusion block is in contact with the inner wall of the fixed groove cylinder, the inner wall of the fixed groove cylinder is provided with a first arc groove, a profiling groove and a second arc groove connected in sequence, and the trajectory shape of the profiling groove is the same as the shape of the inner protrusion block, the surface of the fixed cylinder is rotatably connected with an outer rotating cylinder, an outer protrusion block is fixedly installed on the outer rotating cylinder, the outer protrusion block is in contact with the second arc groove, the inner rotating cylinder is connected to the surface of the fixed cylinder by a compression spring, the inner wall of the outer rotating cylinder is connected to the surface of the fixed cylinder by a torsion spring, a group of circular cylinders are fixedly installed on the inner rotating cylinder, and another group of circular cylinders are fixedly installed on the outer rotating cylinder.

[0008] Furthermore, the driving mechanism includes a driving motor fixedly mounted on the surface of the fixed cylinder, the output end of the driving motor passes through the fixed cylinder and is rotatably connected to the fixed cylinder, a rotating screw is fixedly mounted on the output end of the driving motor, the rotating screw and the screw slider form a spiral pair transmission, the screw slider is slidably connected to the surface of the support rod, an L-shaped pull rod is fixedly mounted on the surface of the screw slider, the support rod is fixedly mounted on the inner wall of the fixed cylinder, a photosensor is fixedly mounted on the surface of the fixed cylinder, and the photosensor is connected to the input end of the controller.

[0009] Furthermore, the street lamp also includes a magnetic attraction mechanism, which includes an electromagnet slidably connected to the surface of the power-on connector, and also includes a plurality of permanent magnets fixedly mounted on the mounting tube, three electromagnets corresponding to one permanent magnet, a thrust rack fixedly mounted on the surface of the electromagnet, the thrust rack meshing with the rotating gear, the rotating gear rotatably connected to the surface of the power-on connector, an active bevel gear coaxially fixedly mounted on the surface of the rotating gear, the active bevel gear meshing with the driven bevel gear, the driven bevel gear meshing with the fixed bevel gear ring, the fixed bevel gear ring fixedly mounted on the inner wall of the mounting tube, the fixed bevel gear ring is provided with ratchet teeth, the electromagnet is connected to the power-on connector through a tension spring, and the magnetic properties of the electromagnet are different from those of the permanent magnet after being energized.

[0010] Furthermore, the street lamp also includes a limiting mechanism, which includes a limiting rod fixedly installed on the electromagnet, the other end of the limiting rod is in contact with the inner wall of the mounting tube, and the inner wall of the mounting tube is provided with an outer circular groove and an inner circular groove matching with the limiting rod, and the radius of the inner circular groove is smaller than that of the outer circular groove, and the trajectories of the inner circular groove and the outer circular groove are connected through a plane groove.

[0011] Furthermore, the street lamp also includes a locking device, which includes a back-pressure rod in contact with the circular cylinder, the back-pressure rod is connected to the power-on connector through a reset spring, a locking rod is fixedly installed on the surface of the back-pressure rod, the locking rod is slidably connected to the inner wall of the power-on connector, and a limiting groove matching the locking rod is opened inside the driven bevel gear, an arc-shaped convex plate is fixedly installed on the surface of the circular cylinder, and the curvatures of the multiple arc-shaped convex plates on the inner rotating cylinder are sequentially arithmetically decreased, and the curvatures of the multiple arc-shaped convex plates on the outer rotating cylinder are also sequentially arithmetically decreased, the arc-shaped convex plate with the smallest curvature on the inner rotating cylinder and the arc-shaped convex plate with the largest curvature on the outer rotating cylinder also satisfy the same arithmetic difference rule, and this arithmetic difference rule is the same as the arithmetic difference rule of multiple power transmission blocks.

[0012] Furthermore, a rolling ball is provided at the contact end of the limiting rod and the inner wall of the mounting tube.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention arranges two groups of power transmission blocks at intervals, so that the power is cut off at intervals when the lighting bulb is turned off, thereby preventing the heat generated inside the lighting bulb from being too concentrated during the brightness adjustment process, which affects the service life of the lighting bulb. At the same time, the luminous intensity is adjusted by adjusting the number of luminous bulbs to avoid the continuous operation of the lighting bulb resulting in a reduction in the service life. At the same time, the uniformity of illumination is increased when adjusting the light intensity by means of intermittent power cuts.

[0014] 2. The present invention rotates the rotating cylinder to rotate the new lighting bulb to the initial lighting bulb position, so that the new lighting bulb contacts the power transmission block, thereby automatically replacing the lighting bulb and avoiding affecting the working effect of the street lamp when a temporary fault occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a dimmable energy-saving LED street lamp provided by an embodiment of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at C; Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure at B; Figure 6 For the present invention Figure 5 A schematic diagram of the structure at D of FIG. Figure 7 It is a schematic diagram of the explosion structure of a part of the structure of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure at E of FIG. Fig. 9 For the present invention Figure 7 A schematic diagram of the structure at F of FIG. Fig.10 For the present invention Figure 7 A schematic diagram of the enlarged structure at G; Fig.11 For the present invention Figure 7 A schematic diagram of the structure at H of FIG. Fig.12 This is a schematic diagram of the structure of the outer rotating cylinder of the present invention; Fig.13 This is a schematic diagram of the structure of the inner rotating cylinder of the present invention; Fig.14 A schematic cross-sectional structure diagram of a dimmable energy-saving LED street lamp from another viewing angle; Fig.15 For the present invention Fig.14 Schematic diagram of the enlarged structure at location I.

[0016] In the attached drawings: 1. main base; 101. mounting rod; 102. photovoltaic panel; 103. fixing cylinder; 104. mounting cylinder; 105. transparent cover; 2. lighting mechanism; 201. lighting bulb; 202. power connector; 203. power transmission block; 204. round cylinder; 205. rotating cylinder; 3. rotating mechanism; 301. L-shaped pull rod; 302. inner rotating cylinder; 303. spiral groove; 304. inner protruding block; 305. fixed groove cylinder; 306. first arc groove; 307. contoured groove; 308. second arc groove; 309. outer rotating cylinder; 310. outer protruding block; 311. compression spring; 312. Torsion spring; 4. Driving mechanism; 401. Driving motor; 402. Rotating screw; 403. Screw slider; 404. Support rod; 405. Photosensitive sensor; 5. Magnetic attraction mechanism; 501. Electromagnet; 502. Permanent magnet; 503. Thrust rack; 504. Rotating gear; 505. Active bevel gear; 506. Driven bevel gear; 507. Fixed bevel gear ring; 6. Limiting mechanism; 601. Limiting rod; 602. Outer circular groove; 603. Inner circular groove; 604. Plane groove; 7. Positioning device; 701. Back pressure rod; 702. Reset spring; 703. Positioning rod; 704. Arc convex plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.12 and Fig.13 As shown, in one embodiment, a dimmable energy-saving LED street lamp is provided, the street lamp comprising: The main body 1 comprises a mounting rod 101 arranged on the main body 1, a photovoltaic panel 102 and a fixing tube 103 are fixedly mounted on the surface of the mounting rod 101, a mounting tube 104 is fixedly mounted on the surface of the fixing tube 103, and a transparent cover 105 is fixedly mounted on the surface of the mounting tube 104; Lighting mechanism 2: comprising a plurality of lighting bulbs 201 installed inside the installation cylinder 104, a power connector 202 is fixedly installed on the surface of each lighting bulb 201, and every three power connectors 202 form a group, and a group of power connectors 202 all penetrate the rotating cylinder 205 and are fixedly connected to the rotating cylinder 205, and only one power connector 202 in a group of power connectors 202 contacts the surface of the power transmission block 203, and the power transmission block 203 is fixedly installed on the inner wall of the circular cylinder 204, and the curvature of the plurality of power transmission blocks 203 in the direction of the central axis of the circular cylinder 204 is sequentially distributed in two groups of arithmetic progressions, and the two groups of power transmission blocks 203 are distributed at intervals, and the curvatures of adjacent power transmission blocks 203 in the two groups are correspondingly equal; Rotating mechanism 3: used to drive the circular cylinder 204 to rotate and adjust the brightness; Driving mechanism 4: used to provide feedback on the brightness of the external environment and drive the rotating mechanism 3 to move.

[0020] In actual application of the embodiment of the present invention, when the external light changes, the external brightness increases as an example. Figure 3 As shown, at this time, the driving mechanism 4 drives the rotating mechanism 3 to move, as shown in FIG. Figure 4 As shown, the movement of the rotating mechanism 3 drives the circular cylinder 204 to rotate, and the rotation of the circular cylinder 204 drives the power transmission block 203 to rotate synchronously, as shown in FIG. Figure 2 As shown, from Figure 2 From the front view direction, the power connector 202 gradually loses contact with the power transmission block 203 from right to left during the rotation process. As the power connector 202 loses contact with the power transmission block 203, the lighting bulb 201 is no longer powered on, thereby achieving the purpose of automatically adjusting the light intensity. Fig.12 and Fig.13As shown, since the multiple power transmission blocks 203 are set as two groups, and the two groups are arranged at intervals, the power is cut off at intervals during the process of extinguishing the lighting bulb 201, so as to avoid excessive concentration of heat generated inside the lighting bulb 201 during the process of adjusting the brightness, which affects the service life of the lighting bulb 201. At the same time, by adjusting the number of luminous lighting bulbs 201, the luminous intensity is adjusted to avoid the continuous operation of the lighting bulb 201 resulting in a reduction in the service life. At the same time, by means of intermittent power cuts, the uniformity of illumination when adjusting the light intensity is increased; at the same time, when the lighting bulb 201 is damaged, the rotating cylinder 205 is driven by the outside world to rotate, so that the new lighting bulb 201 is rotated to the initial lighting bulb 201 position, so that the new lighting bulb 201 is in contact with the power transmission block 203, so as to achieve automatic replacement of the lighting bulb 201, and avoid affecting the working effect of the street lamp when a temporary fault occurs.

[0021] like Figure 4 , Figure 7 , Figure 8 , Fig. 9 , Fig.11 and Fig.13 As shown, as a preferred embodiment of the present invention, the rotating mechanism 3 includes an L-shaped pull rod 301 that passes through the fixed cylinder 103 and is slidably connected to the fixed cylinder 103, the L-shaped pull rod 301 is in contact with the spiral groove 303, the spiral groove 303 is opened on the inner wall of the inner rotating cylinder 302, the surface of the inner rotating cylinder 302 is fixedly installed with an inner protruding block 304, the surface of the fixed cylinder 103 is fixedly installed with a fixed groove cylinder 305, the inner protruding block 304 is in contact with the inner wall of the fixed groove cylinder 305, and the inner wall of the fixed groove cylinder 305 is opened with a first arc groove 306, a contour groove 307 and a second arc groove 308 that are connected in sequence. The outer protruding block 310 is fixedly mounted on the outer rotating cylinder 309, and the outer protruding block 310 is in contact with the second arc groove 308. The inner rotating cylinder 302 is connected to the surface of the fixed cylinder 103 through a compression spring 311, and the inner wall of the outer rotating cylinder 309 is connected to the surface of the fixed cylinder 103 through a torsion spring 312. A group of circular cylinders 204 are fixedly mounted on the inner rotating cylinder 302, and another group of circular cylinders 204 are fixedly mounted on the outer rotating cylinder 309.

[0022] In actual application of the embodiment of the present invention, when adjusting the light intensity, taking the increase of the external brightness as an example, Figure 4 As shown, from Figure 4From the front view of the embodiment, the driving mechanism 4 drives the L-shaped pull rod 301 to move to the left. At this time, the L-shaped pull rod 301 slides in the spiral groove 303. Since the inner protrusion block 304 is limited by the fixed groove cylinder 305, the L-shaped pull rod 301 drives the inner rotating cylinder 302 to rotate clockwise through the spiral groove 303. Fig.13 As shown, the inner rotating cylinder 302 rotates to drive the power transmission block 203 to rotate, so that the lighting bulb 201 is separated from the power transmission block 203 in sequence from far to near, thereby achieving the function of disconnecting the lighting bulb 201 at intervals. Fig. 9 and Fig.11 As shown in FIG. 1 , when the inner protruding block 304 moves to the contoured groove 307, the inner rotating cylinder 302 is driven to move laterally under the movement of the L-shaped pull rod 301, so that the power transmission block 203 on the inner rotating cylinder 302 will not contact the power supply connector 202 on the same group of lighting bulbs 201 during the subsequent rotation process. Fig. 9 As shown, when the inner protrusion block 304 moves to the second arc groove 308, the inner protrusion block 304 continues to be limited by the fixed groove cylinder 305, and the L-shaped pull rod 301 drives the inner rotating cylinder 302 to continue to rotate. At the same time, the inner protrusion block 304 contacts the outer protrusion block 310 in the second arc groove 308, driving the outer protrusion block 310 to rotate synchronously, and then driving the outer rotating cylinder 309 to rotate synchronously. The rotation of the outer rotating cylinder 309 synchronously drives the power transmission block 203 thereon and the lighting bulb 201 to be disconnected sequentially, thereby achieving the purpose of uniformly adjusting the illumination intensity.

[0023] like Figure 3 As shown, as another preferred embodiment of the present invention, the driving mechanism 4 includes a driving motor 401 fixedly mounted on the surface of the fixed cylinder 103, the output end of the driving motor 401 passes through the fixed cylinder 103 and is rotatably connected to the fixed cylinder 103, the output end of the driving motor 401 is fixedly mounted with a rotating screw 402, the rotating screw 402 and the screw slider 403 form a spiral pair transmission, the screw slider 403 is slidably connected to the surface of the support rod 404, the surface of the screw slider 403 is fixedly mounted with an L-shaped pull rod 301, the support rod 404 is fixedly mounted on the inner wall of the fixed cylinder 103, the surface of the fixed cylinder 103 is fixedly mounted with a photosensor 405, and the photosensor 405 is connected to the input end of the controller.

[0024] In practical application, when adjusting the illumination, for example Figure 3As shown, the light intensity of the outside world is sensed by the photosensitive sensor 405, and the light intensity is fed back to the controller. At this time, the controller sends a signal to move the drive motor 401. The operation of the drive motor 401 drives the lead screw slider 403 to move horizontally through the spiral pair transmission, and then drives the L-shaped pull rod 301 to move horizontally, thereby regulating the disconnection and contact of the power connector 202 and the power transmission block 203.

[0025] like Figure 5 and Fig.10 As shown, as another preferred embodiment of the present invention, the street lamp further includes a magnetic attraction mechanism 5, the magnetic attraction mechanism 5 includes an electromagnet 501 slidably connected to the surface of the power connector 202, and also includes a plurality of permanent magnets 502 fixedly mounted on the mounting cylinder 104, three electromagnets 501 correspond to one permanent magnet 502, and a thrust rack 503 is fixedly mounted on the surface of the electromagnet 501, the thrust rack 503 is meshed with a rotating gear 504, and the rotating gear 504 is meshed with the power connector 202 The surface of the rotating gear 504 is rotatably connected, and a driving bevel gear 505 is coaxially fixedly installed on the surface of the rotating gear 504. The driving bevel gear 505 is meshed with the driven bevel gear 506, and the driven bevel gear 506 is meshed with a fixed bevel gear ring 507. The fixed bevel gear ring 507 is fixedly installed on the inner wall of the mounting cylinder 104, and a ratchet is arranged on the fixed bevel gear ring 507. The electromagnet 501 is connected to the power-on connector 202 through a tension spring, and the magnetism of the electromagnet 501 is different from that of the permanent magnet 502 after being energized.

[0026] In actual application of the embodiment of the present invention, when the operating lighting bulb 201 is short-circuited and damaged, Figure 5 As shown, at this time, the internal power of the electromagnet 501 is cut off, as shown in FIG. Fig.10 As shown, at this time, the electromagnet 501 is driven to move to the right under the action of the tension spring, and then the rotating gear 504 is driven to rotate through the rack and pinion structure. The rotation of the rotating gear 504 drives the driven bevel gear 506 to rotate through the bevel gear set. At this time, the driven bevel gear 506 is driven to revolve through the meshing action of the driven bevel gear 506 and the fixed bevel gear ring 507, and then the lighting bulb 201 is driven to switch the revolution. It should be noted here that by setting the fixed bevel gear ring 507 to a ratchet, when the driven bevel gear 506 on the damaged lighting bulb 201 rotates, since the driven bevel gears 506 on other lighting bulbs 201 in the same group are in a restricted state, during the process of revolution switching, the driven bevel gears 506 on other lighting bulbs 201 in the same group continuously move the ratchet on the fixed bevel gear ring 507 during rotation, thereby avoiding motion interference.

[0027] like Figure 5 , Fig.14 and Fig.15As shown, as another preferred embodiment of the present invention, the street lamp also includes a limiting mechanism 6, the limiting mechanism 6 includes a limiting rod 601 fixedly mounted on the electromagnet 501, the other end of the limiting rod 601 contacts the inner wall of the mounting tube 104, the inner wall of the mounting tube 104 is provided with an outer circular groove 602 and an inner circular groove 603 matching with the limiting rod 601, and the radius of the inner circular groove 603 is smaller than that of the outer circular groove 602, and the trajectories of the inner circular groove 603 and the outer circular groove 602 are connected through the plane groove 604.

[0028] When the embodiment of the present invention is actually used, during the revolution of the lighting bulb 201, since other lighting bulbs 201 are not powered, the corresponding electromagnets 501 are also not powered. The limiting effect of the outer circular groove 602 prevents the electromagnets 501 from moving under the action of the tension spring, thereby achieving the purpose of limiting the electromagnets 501 on other lighting bulbs 201. Therefore, when the lighting bulb 201 is damaged, the electromagnets 501 are powered off and revolve through the action of the magnetic attraction mechanism 5. The limiting rod 601 slides freely on the plane groove 604, and the lighting bulb 201 is switched through the action of the magnetic attraction mechanism 5. The limiting rod 601 at the faulty end moves to the inner circular groove 603 for circular motion, thereby avoiding motion interference.

[0029] like Figure 5 , Figure 6 , Fig.12 and Fig.13 As shown, as another preferred embodiment of the present invention, the street lamp further includes a locking device 7, which includes a back pressure rod 701 in contact with the circular cylinder 204, the back pressure rod 701 is connected to the power connector 202 through a reset spring 702, a locking rod 703 is fixedly installed on the surface of the back pressure rod 701, the locking rod 703 is slidably connected to the inner wall of the power connector 202, and a limiting groove matching the locking rod 703 is opened inside the driven bevel gear 506 An arc-shaped convex plate 704 is fixedly installed on the surface of the circular cylinder 204, and the curvatures of the multiple arc-shaped convex plates 704 on the inner rotating cylinder 302 decrease in sequence in an arithmetic progression, and the curvatures of the multiple arc-shaped convex plates 704 on the outer rotating cylinder 309 also decrease in sequence in an arithmetic progression. The arc-shaped convex plate 704 with the smallest curvature on the inner rotating cylinder 302 and the arc-shaped convex plate 704 with the largest curvature on the outer rotating cylinder 309 also satisfy the same arithmetic progression rule, and this arithmetic progression rule is the same as the arithmetic progression rule of the multiple transmission blocks 203.

[0030] In actual application of the embodiment of the present invention, when the circular cylinder 204 is rotated and adjusted, the lighting bulb 201 at the bottom may also be powered off. Figure 5 , Fig.12 and Fig.13 As shown, from Figure 5When the electric magnet 501 is powered off, the limiting effect of the rotating gear 504 makes it impossible for the electric magnet 501 to move, thereby ensuring that the movement of the lighting bulb 201 is not affected by the power failure of the lighting bulb 201 when the light intensity is adjusted. It should be noted that the width of the arc convex plate 704 is greater than the lateral displacement distance of the circular cylinder 204, thereby avoiding the squeezing of the detached counter-pressure rod 701, resulting in abnormal rotation of the lighting bulb 201. Even if the other counter-pressure rods 701 in the same group are affected by the arc convex plate 704 to limit the driven bevel gear 506, they can still revolve through the action of the ratchet when the lighting bulb 201 revolves, and there will be no motion interference.

[0031] like Figure 5 As shown, as another preferred embodiment of the present invention, a rolling ball is provided at the contact end of the limiting rod 601 and the inner wall of the mounting tube 104 .

[0032] In practical application, the embodiment of the present invention is as follows: Figure 5 As shown, by means of the rolling ball arranged on the limiting rod 601, the sliding friction is converted into rolling friction, thereby reducing the motion friction and increasing the service life of the device.

[0033] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dimmable energy-saving LED street lamp, characterized in that: The street lamp comprises: The main body seat (1) comprises a mounting rod (101) arranged on the main body seat (1), the surface of the mounting rod (101) being fixedly mounted with a photovoltaic panel (102) and a fixing cylinder (103), the surface of the fixing cylinder (103) being fixedly mounted with a mounting cylinder (104), and the surface of the mounting cylinder (104) being fixedly mounted with a transparent cover (105); The lighting mechanism (2) comprises a plurality of lighting bulbs (201) installed inside a mounting cylinder (104), a power connector (202) being fixedly installed on the surface of each lighting bulb (201), three power connectors (202) forming a group, a group of power connectors (202) all passing through a rotating cylinder (205) and being fixedly connected to the rotating cylinder (205), only one power connector (202) in a group of power connectors (202) being in contact with the surface of a power transmission block (203), the power transmission block (203) being fixedly installed on the inner wall of the circular cylinder (204), and the arcs of the plurality of power transmission blocks (203) in the direction of the central axis of the circular cylinder (204) being sequentially distributed in two groups of arithmetic progressions, the two groups of power transmission blocks (203) being distributed at intervals, and the arcs of adjacent power transmission blocks (203) in the two groups being correspondingly equal; Rotating mechanism (3): used to drive the circular cylinder (204) to rotate and adjust the brightness; Driving mechanism (4): used to provide feedback on the brightness of the external environment and drive the rotating mechanism (3) to move.

2. The dimmable energy-saving LED street lamp according to claim 1, characterized in that: The rotating mechanism (3) comprises an L-shaped pull rod (301) penetrating through the fixed cylinder (103) and slidably connected to the fixed cylinder (103); the L-shaped pull rod (301) is in contact with the spiral groove (303); the spiral groove (303) is formed on the inner wall of the inner rotating cylinder (302); an inner protruding block (304) is fixedly mounted on the surface of the inner rotating cylinder (302); a fixed groove cylinder (305) is fixedly mounted on the surface of the fixed cylinder (103); the inner protruding block (304) is in contact with the inner wall of the fixed groove cylinder (305); the inner wall of the fixed groove cylinder (305) is formed with a first arc groove (306), a contour groove (307) and a second arc groove (308) connected in sequence; and the contour grooves The trajectory shape of (307) is the same as the shape of the inner protruding block (304); the surface of the fixed cylinder (103) is rotatably connected to the outer rotating cylinder (309); the outer protruding block (310) is fixedly mounted on the outer rotating cylinder (309); the outer protruding block (310) is in contact with the second arc groove (308); the inner rotating cylinder (302) is connected to the surface of the fixed cylinder (103) via a compression spring (311); the inner wall of the outer rotating cylinder (309) is connected to the surface of the fixed cylinder (103) via a torsion spring (312); a group of circular cylinders (204) is fixedly mounted on the inner rotating cylinder (302); and another group of circular cylinders (204) is fixedly mounted on the outer rotating cylinder (309).

3. The dimmable energy-saving LED street lamp according to claim 2, characterized in that: The driving mechanism (4) comprises a driving motor (401) fixedly mounted on the surface of the fixed cylinder (103); the output end of the driving motor (401) passes through the fixed cylinder (103) and is rotatably connected to the fixed cylinder (103); a rotating screw (402) is fixedly mounted on the output end of the driving motor (401); the rotating screw (402) and the screw slider (403) form a spiral pair transmission; the screw slider (403) is slidably connected to the surface of a support rod (404); an L-shaped pull rod (301) is fixedly mounted on the surface of the screw slider (403); the support rod (404) is fixedly mounted on the inner wall of the fixed cylinder (103); a photosensor (405) is fixedly mounted on the surface of the fixed cylinder (103); and the photosensor (405) is connected to the input end of the controller.

4. The dimmable energy-saving LED street lamp according to claim 2, characterized in that: The street lamp further comprises a magnetic attraction mechanism (5), the magnetic attraction mechanism (5) comprising an electromagnet (501) slidably connected to the surface of the power connector (202), and further comprising a plurality of permanent magnets (502) fixedly mounted on the mounting cylinder (104), three electromagnets (501) corresponding to one permanent magnet (502), a thrust rack (503) fixedly mounted on the surface of the electromagnet (501), the thrust rack (503) meshing with a rotating gear (504), and the rotating gear (504) rotatably connected to the surface of the power connector (202), A driving bevel gear (505) is coaxially fixedly mounted on the surface of the rotating gear (504); the driving bevel gear (505) meshes with a driven bevel gear (506); the driven bevel gear (506) meshes with a fixed bevel gear ring (507); the fixed bevel gear ring (507) is fixedly mounted on the inner wall of the mounting cylinder (104); ratchet teeth are arranged on the fixed bevel gear ring (507); the electromagnet (501) is connected to the power connector (202) via a tension spring; and the electromagnet (501) has a different magnetic property from that of the permanent magnet (502) after being energized.

5. The dimmable energy-saving LED street lamp according to claim 4, characterized in that: The street lamp further comprises a limiting mechanism (6), the limiting mechanism (6) comprising a limiting rod (601) fixedly mounted on the electromagnet (501), the other end of the limiting rod (601) being in contact with the inner wall of the mounting tube (104), the inner wall of the mounting tube (104) being provided with an outer circular groove (602) and an inner circular groove (603) matching with the limiting rod (601), the radius of the inner circular groove (603) being smaller than the radius of the outer circular groove (602), and the tracks of the inner circular groove (603) and the outer circular groove (602) being connected via the plane groove (604).

6. The dimmable energy-saving LED street lamp according to claim 4, characterized in that: The street lamp further comprises a locking device (7), the locking device (7) comprising a back pressure rod (701) in contact with the circular cylinder (204), the back pressure rod (701) being connected to the power connector (202) via a return spring (702), a locking rod (703) being fixedly mounted on the surface of the back pressure rod (701), the locking rod (703) being slidably connected to the inner wall of the power connector (202), and a limiting groove cooperating with the locking rod (703) being provided inside the driven bevel gear (506), and the circular cylinder (204) being in contact with the back pressure rod (701). 4), and the curvatures of the plurality of curved convex plates (704) on the inner rotating cylinder (302) are sequentially and arithmetically decreased, and the curvatures of the plurality of curved convex plates (704) on the outer rotating cylinder (309) are also sequentially and arithmetically decreased, and the curved convex plates (704) with the smallest curvature on the inner rotating cylinder (302) and the curved convex plates (704) with the largest curvature on the outer rotating cylinder (309) also satisfy the same arithmetic difference rule, and this arithmetic difference rule is the same as the arithmetic difference rule of the plurality of power transmission blocks (203).

7. The dimmable energy-saving LED street lamp according to claim 5, characterized in that: A rolling ball is provided at the contact end of the limiting rod (601) and the inner wall of the installation cylinder (104).

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