CN210532261U

CN210532261U - Solar street lamp that multi-angle was adjusted

Info

Publication number: CN210532261U
Application number: CN201921374042.6U
Authority: CN
Inventors: 康晓慷
Original assignee: Suzhou Jsolar Inc
Current assignee: Suzhou Jsolar Inc
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-15
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a solar street lamp that multi-angle was adjusted, include: light source, solar photovoltaic board, fixed lamp pole and rotation lamp pole, it is provided with horizontal rotation adjusting part to rotate between lamp pole and the fixed lamp pole, the solar photovoltaic board sets up at the top that rotates the lamp pole, it is provided with luffing motion adjusting part to rotate between lamp pole and the solar photovoltaic board, horizontal rotation adjusting part includes first ring flange, second ring flange and first bolt, the edge of first ring flange is provided with the round tooth's socket, first bolt sets up on the second ring flange and downwardly extending to in the tooth's socket that corresponds. In this way, solar street lamp that multi-angle was adjusted, special design horizontal rotation adjusting part and luffing motion adjusting part, can realize the regulation of solar photovoltaic board at horizontal direction and vertical direction, it is easy and simple to handle, structural stability after adjusting is high moreover.

Description

Solar street lamp that multi-angle was adjusted

Technical Field

The utility model relates to a solar street lamp technical field especially relates to a solar street lamp that multi-angle was adjusted.

Background

The solar street lamp has good energy-saving effect and is more and more widely used in recent years. Compared with the common street lamp, the solar street lamp has a more complex structure, and the influence of many factors needs to be considered when designing the solar street lamp. One of the most important problems is the structural safety of the solar street lamp, because the solar photovoltaic panel, the battery and the street lamp charge and discharge controller occupy a certain space on the solar street lamp. In coastal areas and some areas with much wind, some extreme weather often appears, and when the extreme weather appears, the potential safety hazard will appear in the solar street lamp, if the street lamp structural strength is not enough, will break down, still can cause huge economic loss when serious, endanger life even.

In designing a light pole, the reliability of the structure must be considered. Many manufacturers usually manufacture the street lamps according to past experiences, neglecting the reliability of the structure, so that the designed street lamps are often unreasonable in structure and have great potential safety hazards. Some common solar street lamp's structural design, when the continuous effect of the 12 grades of strong winds of level is on solar street lamp, can produce very big destruction to the structure of lamp pole, then take place deformation light, then break off heavy, have very big potential safety hazard, have a lot of hidden risks.

In addition, when the placing angles of the solar photovoltaic panels are different, the situations of damage caused by illumination intensity and wind power are also different, so that different placing angles need to be selected. However, the angle adjustment flexibility of the existing solar photovoltaic panel is poor, and the solar photovoltaic panel is difficult to adjust to a required angle, or the stability after the solar photovoltaic panel is adjusted to the required angle is poor, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a solar street lamp that multi-angle was adjusted, promotes the flexibility of solar photovoltaic board angle modulation, ensures the structural stability after the regulation.

In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a multi-angle adjustable solar street lamp, comprising: the solar photovoltaic lamp comprises a light source, a solar photovoltaic panel, a fixed lamp post and a rotary lamp post, wherein the rotary lamp post is arranged at the top of the fixed lamp post, a horizontal rotation adjusting assembly is arranged between the rotary lamp post and the fixed lamp post, a light source support rod extending to one side is arranged on the upper portion of the fixed lamp post, the light source is arranged at the tail end of the light source support rod, the solar photovoltaic panel is arranged at the top of the rotary lamp post, an up-and-down swing adjusting assembly is arranged between the rotary lamp post and the solar photovoltaic panel, the horizontal rotation adjusting assembly comprises a first flange plate, a second flange plate and a first bolt, the first flange plate is horizontally arranged at the top of the fixed lamp post, the second flange plate is horizontally arranged at the bottom of the rotary lamp post and is concentric with the first flange plate, a circle of tooth grooves are formed in the edge of the first flange plate, the first bolt is arranged on the second flange plate and extends downwards, and a plurality of arc waist holes are formed in the second flange plate in an annular array manner, and bolts connected with the first flange plate are arranged on the arc waist holes.

In a preferred embodiment of the present invention, a control box is disposed on one side of the fixed lamp post, a battery and a charge and discharge controller are disposed in the control box, and the charge and discharge controller is respectively connected to the solar photovoltaic panel, the battery and the light source.

In a preferred embodiment of the present invention, the light source is an LED lighting lamp.

In a preferred embodiment of the present invention, the second flange plate is provided with a first pin hole corresponding to the first pin, and the first pin is a stepped pin or is welded and fixed in the first pin hole.

In a preferred embodiment of the present invention, the fixed lamp post and the rotatable lamp post are hollow square tubes respectively.

In a preferred embodiment of the present invention, the luffing adjusting assembly includes a disc, a fixing base, a first pin and a second pin, the disc is symmetrically disposed on two sides of the rotary lamp post, the fixing base is disposed on the back of the solar photovoltaic panel, a clamp plate is disposed on the fixing base and extends to two sides of the disc, the first pin runs through the clamp plate, the disc and the rotary lamp post to support the swing adjustment of the clamp plate, the clamp plate and the disc are respectively provided with a second pin hole in an annular array, and the second pin is inserted into the corresponding second pin hole on the clamp plate and the disc to realize the swing limit of the clamp plate.

In a preferred embodiment of the present invention, the luffing adjusting assembly comprises a swing arm, a third pin, a second pin, a pull rod and a pin fixing plate, wherein the front surface of the rotatable light pole is vertically provided with a slot, the bottom end of the swing arm is movably arranged in the rotatable light pole through the second pin, the top end of the swing arm extends obliquely upwards to the outside of the rotatable light pole through the slot and is provided with a fixing plate connected with the back surface of the solar photovoltaic panel, the pin fixing plate is arranged on the rotatable light pole and is positioned at both sides of the swing arm, the third pin penetrates through the pin fixing plate at both sides and penetrates through the swing arm or passes through the upper part of the swing arm to realize the position limitation of the swing arm, the swing arm is provided with a plurality of third pin holes corresponding to the third pin, the pin fixing plate is provided with a plurality of fourth pin holes corresponding to the third pin, the tail, the lamp post is characterized in that a nut behind the rotary lamp post is arranged on the pull rod to lock the pull rod, a reinforcing block penetrated through by the pull rod is welded on the back of the rotary lamp post, a through groove corresponding to the pull rod is formed in the reinforcing block, and a sleeve between the reinforcing block and the nut is arranged on the pull rod.

In a preferred embodiment of the present invention, the pin fixing plate is disposed on both sides of the slot, a slot corresponding to the wall thickness of the rotating lamp post is disposed on the outside of the pin fixing plate, and a third pin penetrating through the pin fixing plate is disposed on the rotating lamp post.

In a preferred embodiment of the present invention, the bolt fixing plates are located on both sides of the rotatable lamp post and are fixed by welding or screws.

In a preferred embodiment of the present invention, the lamp further comprises a reinforcing sleeve, the diameter of the first flange is smaller than that of the second flange, the reinforcing sleeve is located below the second flange, a reinforcing rib extending to the second flange is provided on the reinforcing sleeve, a first fixing block located outside the rotary lamp post is provided on the swing arm, a second fixing block located below the first fixing block is provided on the side of the reinforcing sleeve, a first connecting rod extending downward is hinged on the first fixing block, a second connecting rod extending downward and penetrating through the second fixing block is hinged at the bottom end of the first connecting rod, and a fastening screw pointing to the second connecting rod is provided on the second fixing block.

The utility model has the advantages that: the utility model provides a solar street lamp that multi-angle was adjusted, horizontal rotation adjusting part and luffing motion adjusting part have been designed very much, can realize 360 rotatory regulations and the regulation of vertical orientation of solar photovoltaic board in the horizontal direction ± 60, easy and simple to handle, and structural stability after adjusting is high, the anti-wind is effectual, the design that the structure is more optimized, most equipment and system wiring can be accomplished at the mill, the on-the-spot simple installation nature has been promoted, the man-hour of the site operation that significantly reduces, the structure commonality is good, satisfy the best installation angle and the orientation requirement of solar photovoltaic board under the different longitude and latitude circumstances, the processing cost when having simplified batch production greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic structural view of a preferred embodiment of a multi-angle adjustable solar street light according to the present invention;

FIG. 2 is a top exploded view of FIG. 1;

FIG. 3 is a schematic top view of another preferred embodiment of the multi-angle adjustable solar street light of the present invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic top view of another preferred embodiment of the multi-angle adjustable solar street light of the present invention;

fig. 6 is an exploded view of fig. 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 6, an embodiment of the present invention includes:

the multi-angle adjustable solar street lamp as shown in fig. 1 comprises: light source 2, solar photovoltaic board 8, fixed lamp pole 1 and rotation lamp pole 6, rotate the top that lamp pole 6 set up at fixed lamp pole 1, solar photovoltaic board 8 sets up at the top of rotating lamp pole 6, rotate and be provided with horizontal rotation adjusting part 5 between lamp pole 6 and the fixed lamp pole 1, rotate the horizontal rotation regulation of lamp pole 6 and solar photovoltaic board 8, satisfy the orientation requirement of solar photovoltaic board 8.

The upper portion of the fixed lamp pole 1 is provided with a light source support rod 3 extending towards one side, and the light source 2 is arranged at the tail end of the light source support rod 3 and used for road surface illumination. The utility model discloses a street lamp, including fixed lamp pole 1, fixed lamp pole, battery and light source 2, fixed lamp pole 1 one side is provided with control box 4, adopts the bolt to fix, be provided with battery and charge-discharge controller in the control box 4, charge-discharge controller is connected with solar photovoltaic board 8, battery and light source 2 respectively, carries out the charge-discharge management, light source 2 is the LED light, and the energy consumption is low, and illuminating power 30W can satisfy general road surface illumination demand, can reach 180W the highest, and minimum illuminance 1 lux can reach 3 lux the highest, and application scope is extensive.

The rechargeable battery with large capacity is selected to ensure lighting for more than 6 nights under the condition of no charging, the storage capacity of the battery is maintained to be more than 50 percent after the battery is used for three months, and the continuous sunshine time required for recovering 75 percent of the battery storage capacity from the exhausted edge is less than 12 hours.

According to theoretical analysis, the possibility of cracking of stress concentration parts is included, the probability of resonance occurrence and the installation simplicity are considered, and the conclusion is that a square rod is more reasonable than a common round rod. The street lamp pole through optimizing at last does: the square pole fineness is 95 x 95mm, and the wall thickness is 3.7mm, and is the optimum result, therefore, fixed lamp pole 1 and rotation lamp pole 6 are hollow square pipe respectively, fixed lamp pole 1 top or the welding of rotation lamp pole 6 bottom has shutoff board 15, avoids the rainwater to flow in fixed lamp pole 1. Through modeling analysis flow field and finite element structure, can analyze out the deformation condition of street lamp under extreme weather condition, the distribution condition of stress strain condition and wind pressure, in engineering practice, can refer to the data that the analysis was gained, the cost of effectual reduction product. In addition, when the solar photovoltaic panels are placed at different angles, the conditions of wind damage are different, and therefore different placing angles need to be selected for analysis. The height of the fixed lamp post 1 is 6m, the highest height can reach 12 m, the distance between the fixed lamp post and the fixed lamp post is 20m, the farthest distance can reach 80m, and the design is flexible.

As shown in fig. 2, the horizontal rotation adjusting assembly 5 includes a first flange 55, a second flange 51 and a first plug 52, the first flange 55 is horizontally welded to the top of the fixed lamp post 1, first reinforcing ribs 53 connected to the bottom surface of the first flange 55 are welded around the fixed lamp post 1, the second flange 51 is horizontally arranged at the bottom of the rotary lamp post 6 and concentric with the first flange 55, and second reinforcing ribs 57 connected to the second flange 51 are welded around the rotary lamp post 6, so as to improve the structural stability of the first flange 55 and the second flange 51.

The edge of the first flange plate 55 is provided with a circle of tooth grooves 54, the first plug pins 52 are arranged on the second flange plate 51 and extend downwards to the corresponding tooth grooves 54 to realize the torsion limiting of the first flange plate 55 and the second flange plate 51, the adjacent tooth grooves 54 are spaced by 1-5 degrees, the horizontal rotation adjustment and the limiting of the rotating lamp post 6 are facilitated, and the orientation requirements of the solar photovoltaic panels 8 in different areas are met. Annular array is provided with several arc waist hole 56 on the second ring flange 51, be provided with the bolt that is connected with first ring flange 55 on the arc waist hole 56, carry out the locking of first ring flange 55 and second ring flange 51 after the regulation, avoid taking off, and anti-wind is effectual.

The second flange plate 51 is provided with a first pin hole corresponding to the first pin 52, and the first pin 52 is a stepped pin shaft or is welded and fixed in the first pin hole, so that the stability of the first pin 52 is improved, and the falling problem is avoided.

Rotate and be provided with luffing motion adjusting part 7 between lamp pole 6 and the solar photovoltaic board 8, carry out the regulation of 8 luffing motion angles of solar photovoltaic board, satisfy the best installation angle of solar photovoltaic board under the different longitude and latitude circumstances, including following three kinds of technical scheme:

example 1:

as shown in fig. 2, the up-down swinging adjusting assembly 7 includes a disc 72, a fixing seat 71, a first pin 75 and a second pin 76, wherein the disc 72 is symmetrically disposed at two sides of the rotating lamp post 6, and is welded and fixed, and the structure is firm.

Fixing base 71 sets up at the back of solar photovoltaic board 8, adopts the screw fixation, the welding is provided with the splint 73 that extends to disc 72 both sides on the fixing base 71, first round pin axle 75 runs through splint 73, disc 72 and rotates lamp pole 6 and adjusts with the swing of supporting splint 73, and splint 73 carries out the fixed of first round pin axle 75 through spot welding, avoids droing of first round pin axle 75.

Annular array is provided with second pinhole 74 on splint 73 and the disc 72 respectively, the swing that splint 73 was realized to the second pinhole that corresponds on second bolt 76 level insertion splint 73 and the disc 72 is spacing, and 3 can be adopted to the quantity of second bolt 76, and structural strength is high to it is fixed to carry out spot welding after the installation, avoids the pine to take off the problem, promotes the anti-wind effect.

Example 2:

as shown in fig. 3 and 4, the luffing motion adjusting assembly includes a swing arm 9, a third bolt 14, a second pin 16, a pull rod 20 and a bolt fixing plate 13, a groove is vertically formed in the front of the rotary lamp post 6, the bottom end of the swing arm 9 is movably arranged in the rotary lamp post 6 through the second pin 16, the top end of the swing arm 9 extends obliquely upwards to the outer side of the rotary lamp post 6 through the groove, and the luffing motion adjusting assembly is convenient to sway.

The top end of the swing arm 9 is welded with a fixing plate 27 connected with the back face of the solar photovoltaic panel 8, the fixing plate 27 is connected with the solar photovoltaic panel 8 through screws, and the angle of the solar photovoltaic panel 8 is adjusted through the up-and-down swing of the swing arm 9.

The tail end of the pull rod 20 is hinged to the swing arm 9, the front end of the pull rod 20 extends to the rear of the rotary lamp post 6, the nut 18 located behind the rotary lamp post 6 is arranged on the pull rod 20 to achieve locking of the pull rod 20, the pull rod 20 is provided with an external thread corresponding to the nut 18 to facilitate installation of the nut 18, the pull rod 20 is provided with a sleeve 17 located between the reinforcing block 19 and the nut 18, the sleeve 17 keeps the tension of the pull rod 20, and accordingly angle keeping of the swing arm 9 is achieved. The welding of the back of rotation lamp pole 6 has the boss 19 that is run through by pull rod 20, be provided with the logical groove that corresponds with pull rod 20 on the boss 19, make things convenient for pull rod 20 to run through, promote the structural stability of rotation lamp pole 6.

Bolt fixed plate 13 sets up on rotating lamp pole 6 and is located swing arm 9 both sides, third bolt 14 runs through swing arm 9 or realizes swing arm 9 spacing through swing arm 9 upper portion when running through the bolt fixed plate 13 of both sides, and the angle modulation and the fixing of swing arm 9 are realized to the pulling of swing arm 9 to cooperation pull rod 20.

The swing arm 9 is provided with 3 third pin holes 10 corresponding to the third pins 14, the third pins 14 select the third pin holes 10 at different positions, and the angle of the swing arm 9 can be adjusted, for example, the swing arm 9 can be adjusted by 10 degrees by selecting two adjacent third pin holes 10, so that the operation is convenient.

The bolt fixing plate 13 is provided with 3 fourth pin holes 12 corresponding to the third bolts 14, the third bolts 14 select different fourth pin holes 12, and the swing arm 9 can be limited in different angles, and the angle maintenance of the swing arm 9 is realized by matching with the tensioning of the pull rod 20.

Bolt fixed plate 13 sets up in the fluting both sides, the bolt fixed plate 13 outside is provided with the draw-in groove that corresponds with the wall thickness of rotation lamp pole 6, realizes the location of 13 lateral surfaces of bolt fixed plate in the fluting, be provided with the third round pin axle 11 that runs through bolt fixed plate 13 on rotating lamp pole 6, third round pin axle 11 spot welding is fixed on bolt fixed plate 13 or rotating lamp pole 6, promotes the structural stability of bolt fixed plate 13.

Example 3:

as shown in fig. 5 and 6, on the basis of embodiment 2, the position of the bolt fixing plate 13 is changed, and the bolt fixing plates 13 are located at two sides of the rotary lamp post 6 and fixed by welding or screws without processing a clamping groove.

In embodiments 2 and 3, in order to improve the stability of the swing arm 9, a reinforcing sleeve 26 may be further installed, the diameter of the first flange 55 is smaller than the diameter of the second flange 51, the reinforcing sleeve 26 is concentrically located below the second flange 51, a plurality of reinforcing ribs 21 extending to the second flange 51 are welded around the reinforcing sleeve 26, and the reinforcing ribs 21 are welded and fixed with the second flange 51, so that the structural strength is high.

The welding is provided with the first fixed block 22 that is located the rotation lamp pole 6 outside on the swing arm 9, the welding is provided with the second fixed block 25 that is located first fixed block 22 below to the side of reinforcement cover 26, it has downwardly extending's first connecting rod 23 to articulate on the first fixed block 22, first connecting rod 23 bottom articulates there is downwardly extending and runs through the second connecting rod 24 of second fixed block 25, be provided with the fastening screw of directional second connecting rod 24 on the second fixed block 25, the fastening screw is used for the second connecting rod 24 fixed after adjusting from top to bottom. Through the upper and lower regulation of second connecting rod 24 to the angle change of adaptation swing arm 9, and utilize first connecting rod 23 to carry out the reinforcement of swing arm 9, promote the anti-wind effect of swing arm 9.

To sum up, the utility model discloses a solar street lamp that multi-angle was adjusted has satisfied the best installation angle of solar photovoltaic board under the different longitude and latitude circumstances and has adjusted and the orientation requirement, has optimized the structure, has promoted structural stability, has reduced the processing cost when batch production.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims

1. The utility model provides a solar street lamp that multi-angle was adjusted which characterized in that includes: the solar photovoltaic lamp comprises a light source, a solar photovoltaic panel, a fixed lamp post and a rotary lamp post, wherein the rotary lamp post is arranged at the top of the fixed lamp post, a horizontal rotation adjusting assembly is arranged between the rotary lamp post and the fixed lamp post, a light source support rod extending to one side is arranged on the upper portion of the fixed lamp post, the light source is arranged at the tail end of the light source support rod, the solar photovoltaic panel is arranged at the top of the rotary lamp post, an up-and-down swing adjusting assembly is arranged between the rotary lamp post and the solar photovoltaic panel, the horizontal rotation adjusting assembly comprises a first flange plate, a second flange plate and a first bolt, the first flange plate is horizontally arranged at the top of the fixed lamp post, the second flange plate is horizontally arranged at the bottom of the rotary lamp post and is concentric with the first flange plate, a circle of tooth grooves are formed in the edge of the first flange plate, the first bolt is arranged on the second flange plate and extends downwards, and a plurality of arc waist holes are formed in the second flange plate in an annular array manner, and bolts connected with the first flange plate are arranged on the arc waist holes.

2. The solar street lamp capable of being adjusted at multiple angles as claimed in claim 1, wherein a control box is arranged on one side of the fixed lamp post, a battery and a charge and discharge controller are arranged in the control box, and the charge and discharge controller is respectively connected with the solar photovoltaic panel, the battery and the light source.

3. The multi-angle adjustable solar street light as claimed in claim 1, wherein the light source is an LED illuminating lamp.

4. The solar street lamp capable of being adjusted at multiple angles as claimed in claim 1, wherein the second flange plate is provided with a first pin hole corresponding to the first pin, and the first pin is a stepped pin shaft or is fixed in the first pin hole by welding.

5. The multi-angle adjustable solar street light as claimed in claim 1, wherein the fixed lamp post and the rotating lamp post are hollow square tubes respectively.

6. The solar street lamp capable of being adjusted at multiple angles according to claim 1, wherein the up-and-down swinging adjusting assembly comprises a disc, a fixed seat, a first pin shaft and a second pin, the disc is symmetrically arranged on two sides of a rotating lamp pole, the fixed seat is arranged on the back of the solar photovoltaic panel, clamp plates extending to two sides of the disc are arranged on the fixed seat, the first pin shaft penetrates through the clamp plates, the disc and the rotating lamp pole to support the swinging adjustment of the clamp plates, second pin holes are respectively arranged on the clamp plates and the disc in an annular array mode, and the second pin shaft is inserted into the corresponding second pin holes in the clamp plates and the disc to realize the swinging limitation of the clamp plates.

7. The solar street light with multi-angle adjustment according to claim 1, wherein the up-down swinging adjusting assembly comprises a swinging arm, a third pin, a second pin, a pull rod and a pin fixing plate, the front surface of the rotating lamp post is vertically provided with a slot, the bottom end of the swinging arm is movably arranged in the rotating lamp post through the second pin, the top end of the swinging arm extends obliquely upwards to the outer side of the rotating lamp post through the slot and is provided with a fixing plate connected with the back surface of the solar photovoltaic panel, the pin fixing plate is arranged on the rotating lamp post and positioned at two sides of the swinging arm, the third pin penetrates through the swinging arm or passes through the upper part of the swinging arm to realize the limit of the swinging arm when penetrating through the pin fixing plates at two sides, the swinging arm is provided with a plurality of third pin holes corresponding to the third pin, and the pin fixing plate is provided with, the tail end of the pull rod is hinged to the swing arm, the front end of the pull rod extends to the rear of the rotary lamp pole, a nut located behind the rotary lamp pole is arranged on the pull rod to achieve locking of the pull rod, a reinforcing block penetrated through by the pull rod is welded to the back of the rotary lamp pole, a through groove corresponding to the pull rod is formed in the reinforcing block, and a sleeve located between the reinforcing block and the nut is arranged on the pull rod.

8. The solar street light with multiple adjustable angles as claimed in claim 7, wherein the bolt fixing plates are arranged on two sides of the slots, the outer sides of the bolt fixing plates are provided with slots corresponding to the wall thickness of the rotating lamp post, and the rotating lamp post is provided with a third pin shaft penetrating through the bolt fixing plates.

9. The solar street light with multiple adjustable angles as claimed in claim 7, wherein the bolt fixing plates are located at two sides of the rotating lamp post and fixed by welding or screws.

10. The multi-angle adjustable solar street lamp according to claim 7, further comprising a reinforcing sleeve, wherein the diameter of the first flange is smaller than that of the second flange, the reinforcing sleeve is located below the second flange, reinforcing ribs extending to the second flange are arranged on the reinforcing sleeve, a first fixing block located outside the rotary lamp post is arranged on the swing arm, a second fixing block located below the first fixing block is arranged on the side face of the reinforcing sleeve, a first connecting rod extending downwards is hinged to the first fixing block, a second connecting rod extending downwards and penetrating through the second fixing block is hinged to the bottom end of the first connecting rod, and a fastening screw pointing to the second connecting rod is arranged on the second fixing block.