Intelligent modularized street lamp pole

By setting up rotating pulleys and protective shafts on the intelligent modular street light pole, the problem of difficult cleaning of advertising and illegal advertisements is solved, and the protection of advertising and promotional effects and convenient cleaning of illegal advertisements is achieved.

CN119594382AInactive Publication Date: 2025-03-11苏州圣蒙莱科技有限公司
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Patent Information

Application Number
CN202411827793.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-03-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the use of existing intelligent modular street light poles, the surface of the advertising space is prone to traces due to external factors, which affects the advertising effect, and it is difficult to clean up illegal advertisements.

Method used

By setting up a rotating pulley and a protective shaft, the protective shaft surrounds the lower half of the main lamp pole. Illegal advertisements can only be posted on the protective shaft. Because the diameter of the protective shaft is small, the connecting area between the illegal advertisements and the protective shaft is small, which is easy to tear off.

Benefits of technology

It effectively prevents the long-term existence of illegal advertisements, simplifies the cleanup process of illegal advertisements by staff, and ensures the promotional effect of formal advertisements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an intelligent modularized street lamp pole, and relates to the technical field of street lamps, the intelligent modularized street lamp pole comprises a main body lamp pole, the top end of the main body lamp pole is fixedly provided with an intelligent module; the intelligent module is a 5G intelligent module; an illuminating lamp body is fixedly mounted at the right end of the top of the main body lamp pole; the main body lamp pole is of a hexagonal prism structure; the upper half section of the main body lamp pole is fixedly provided with a component frame rod through a hoop; traffic lights or monitoring equipment can be fixed on the component frame rod according to requirements. And intelligent advertising boards are fixedly mounted on the left side and the right side of the main body lamp pole through bolts. The cleaning sliding sleeve slides outwards to wipe and clean the outer wall of the transparent screen protection plate, the situation that fuzzy traces exist on the outer wall of the transparent screen protection plate due to external factors, normal propaganda of advertisements in the advertisement cover board is affected is prevented, and the problem that along with the increase of service time, the surface of the advertisement position of the lamp post is prone to traces due to external factors, and the service life of the advertisement cover board is prolonged is solved. And traces can influence the advertising effect of the advertisement.
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Description

Technical Field

[0001] The present invention relates to the technical field of street lamps, and in particular to an intelligent modular street lamp pole. Background Art

[0002] Street lights refer to lamps that provide lighting functions for roads, and generally refer to lamps within the range of road lighting in traffic lighting. Smart modular street lights are a type of street lights. Smart modular street lights will be based on road lighting poles, integrating traffic signals, communications, traffic signs, etc., to achieve multi-pole integration, reduce road poles, and release public space resources. Smart modular street lights are mainly composed of two parts: poles and lighting lamps.

[0003] During the use of existing intelligent modular street light poles, since street lights are in public places and have good information dissemination benefits, advertising spaces are usually set on street light poles for use by merchants who have successfully bid through normal channels. However, as the use time increases, the surface of the advertising space is prone to traces due to external factors, which will affect the publicity effect of the advertisement. At the same time, some illegal advertisements will be pasted on the street light poles, which are inconvenient to clean up. Summary of the invention

[0004] The disclosed embodiment relates to an intelligent modular street light pole, which is provided with a rotating pulley and a protective shaft. The protective shaft surrounds and protects the lower half of the main lamp pole, and illegal advertisements can only be posted on the protective shaft. The protective shaft itself is a cylindrical structure with a smaller diameter, so that the connection area between the illegal advertisement and the protective shaft is smaller, which is convenient for tearing off and helps staff to deal with illegal advertisements.

[0005] In a first aspect of the present disclosure, an intelligent modular street light pole is provided, specifically comprising: a main lamp pole, on the top of which an intelligent module is fixedly installed; the intelligent module is a 5G intelligent module; a lighting lamp body is fixedly installed on the top right end of the main lamp pole; the main lamp pole is a hexagonal prism structure; a component rack is fixedly installed on the upper half of the main lamp pole through a clamp; traffic lights or monitoring equipment can be fixed on the component rack as needed; smart billboards are fixedly installed on the left and right sides of the main lamp pole by bolts; transparent screen protectors are installed on the front and back sides of the smart billboard by screw locking; a driving motor is fixedly installed on the inner top of the main lamp pole; a driving screw is also rotatably installed on the inner top of the main lamp pole; the driving screw is located below the driving motor, and the top of the driving screw is connected to the output shaft of the driving motor ; A cleaning transmission slider is slidably installed inside the main lamp pole; the cleaning transmission slider is also connected to the driving screw through threaded teeth; the left and right sides of the front and rear ends of the cleaning transmission slider are rotatably installed with push-expansion supporting connecting rods; a vertical transmission push plate is fixedly installed on the bottom rear end of the cleaning transmission slider; a vertical transmission push column is fixedly installed on the front bottom end of the vertical transmission push plate; the front end of the vertical transmission push column is a hemispherical structure; a conversion shaft is rotatably installed at the center position inside the main lamp pole; the conversion shaft is located below the driving screw; a spiral power conversion groove is opened on the circumferential outer wall of the conversion shaft; the hemispherical structure of the vertical transmission push column is also slidably installed inside the power conversion groove; a conversion gear is also fixedly installed on the bottom end of the conversion shaft; a cleaning sleeve is slidably installed on the smart billboard.

[0006] In at least some embodiments, the cleaning sleeve is also rotatably connected to the other end of the push-pull expansion supporting rod; two protective mounting seats are fixedly installed on the lower half of the main lamp pole in an upper and lower symmetrical arrangement; and transmission grooves are also arranged in a circumferential shape on the circumferential outer wall of the protective mounting seat above.

[0007] In at least some embodiments, a rotating pulley is rotatably mounted on the outer wall of the protective mounting seat; a follower transfer ring with a circular ring structure is fixedly mounted on the top of the rotating pulley; and follower grooves are arranged in a circumferential shape on the circumferential inner wall of the follower transfer ring.

[0008] In at least some embodiments, a protective shaft is rotatably mounted on the rotating pulley; a self-rotating wheel is fixedly mounted on the top of the protective shaft; and the self-rotating wheel is meshingly connected with a protective mounting seat located above via a transmission groove.

[0009] In at least some embodiments, a transmission wheel is rotatably mounted on the inner front side of the main lamp pole; the transmission wheel is meshedly connected with the follower transfer ring through a follower groove; and the transmission wheel is also meshedly connected with a conversion gear.

[0010] In at least some embodiments, when the driving motor drives the driving screw to rotate, the driving screw will drive the cleaning transmission slider and one end of the pushing and expanding support rod to move downward; when one end of the pushing and expanding support rod moves downward, the other end of the pushing and expanding support rod will push the cleaning sleeve outward along the smart billboard.

[0011] In at least some embodiments, when the cleaning sleeve moves outward along the smart billboard, the inner side of the cleaning sleeve rubs against the outer wall of the transparent screen protector.

[0012] In at least some embodiments, when the cleaning transmission slider moves downward, the vertical transmission push plate will carry the vertical transmission push column downward along the power conversion screw groove; when the vertical transmission push column moves downward, it will use the spiral structure of the power conversion screw groove to drive the conversion shaft and the conversion gear to rotate.

[0013] In at least some embodiments, when the conversion gear rotates, it also causes the transmission wheel to rotate; when the transmission wheel rotates, it also causes the follower transfer ring and the rotating pulley to rotate.

[0014] In at least some embodiments, when the rotating pulley rotates, it will drive multiple protective shafts to rotate around the main lamp pole; when the protective shafts rotate with the rotating pulley, the protective shafts will also start to rotate due to the engagement of the rotating wheel and the protective mounting seat.

[0015] The present invention provides an intelligent modular street light pole, which has the following beneficial effects:

[0016] 1. The present invention drives the cleaning transmission slider to descend in a timely manner through a driving motor, so that the cleaning transmission slider drives the cleaning sleeve to slide outward by using a push-pushing expansion support connecting rod during the descent process, so that the cleaning sleeve can wipe and clean the outer wall of the transparent screen protector by sliding outward, thereby preventing blurred marks on the outer wall of the transparent screen protector due to external factors, affecting the normal promotion of advertisements inside the advertising cover, so that the street light pole can ensure the promotional effect of advertisements placed through regular channels.

[0017] 2. The present invention is provided with a protective shaft, which is designed to be a longer cylindrical structure with a smaller diameter, so that the lower half of the main lamp pole can be surrounded and protected by the protective shaft. Therefore, when illegal advertisements are posted, only a small part of the protective shaft will be connected to the illegal advertisements by its own cylindrical structure, making it easier to tear off the posted illegal advertisements, thereby preventing the illegal advertisements from being difficult to clean and causing them to be spread for a long time.

[0018] 3. When the present invention drives the cleaning sleeve to move outward to clean the transparent screen protector, the conversion gear will also rotate under the transmission of the corresponding structure and indirectly provide the rotational force to the rotating pulley, so that the rotating pulley rotates with the protective shaft. During the rotation, the protective shaft will rotate on its own. If illegal advertisements are posted on two or more protective shafts at the same time, the protective shaft will use its own rotation to disconnect itself from the illegal advertisements, so that the illegal advertisements will only remain attached to one protective shaft at most, and the illegal advertisements that are only attached to one protective shaft will become very easy to remove, which brings convenience to the removal of illegal advertisements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 A schematic diagram showing the overall structure of the present application;

[0023] Figure 2 A schematic diagram of the cleaning sleeve and protective shaft structure of the present application is shown;

[0024] Figure 3 This application shows Figure 2 The enlarged structural diagram of part A in the middle;

[0025] Figure 4 This application shows Figure 1 A front view structural diagram of

[0026] Figure 5 A schematic diagram of the structure of the driving screw and the conversion shaft of the present application is shown;

[0027] Figure 6 A schematic diagram of the structure of the rotating pulley and the protective shaft of the present application is shown;

[0028] Figure 7 A schematic diagram of the push-expanding connecting rod and the conversion shaft structure of the present application is shown;

[0029] Figure 8 A schematic diagram of the structure of the push-expanding connecting rod and the cleaning sleeve of the present application is shown;

[0030] Reference numerals list

[0031] 1. Main lamp pole; 2. Intelligent module; 3. Lighting lamp body; 4. Component rack; 5. Intelligent billboard; 6. Transparent screen protector; 7. Driving motor; 8. Driving screw; 9. Cleaning transmission slider; 10. Push expansion connecting rod; 11. Vertical transmission push plate; 12. Vertical transmission push column; 13. Conversion shaft; 14. Power conversion screw groove; 15. Conversion gear; 16. Cleaning sleeve; 17. Protective mounting seat; 18. Rotating pulley; 19. Follow-up transmission ring; 20. Protective shaft; 21. Rotating wheel; 22. Transmission wheel. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0033] Please refer to Figures 1 to 8 :

[0034] Embodiment 1:

[0035] The present invention proposes an intelligent modular street light pole, comprising: a main lamp pole 1, on the top of which an intelligent module 2 is fixedly installed; the intelligent module 2 is a 5G intelligent module; a lighting lamp body 3 is fixedly installed on the top right end of the main lamp pole 1; the main lamp pole 1 is a hexagonal prism structure; a component rack 4 is fixedly installed on the upper half of the main lamp pole 1 through a clamp; a traffic light or a monitoring device can be fixed on the component rack 4 according to needs; intelligent billboards 5 are fixedly installed on the left and right sides of the main lamp pole 1 by bolts; transparent screen protectors 6 are installed on the front and back sides of the intelligent billboard 5 by screw locking; a driving motor 7 is fixedly installed on the inner top of the main lamp pole 1; a driving screw rod 8 is also rotatably installed on the inner top of the main lamp pole 1; the driving screw rod 8 is located below the driving motor 7, and the top of the driving screw rod 8 is connected to the output shaft of the driving motor 7; a cleaning transmission slider 9 is slidably installed inside the main lamp pole 1; the cleaning transmission slider 9 is also connected to the driving screw rod 8 through threads; the front and back ends of the cleaning transmission slider 9 The left and right sides of the main lamp pole 1 are rotatably installed with a push-expanding connecting rod 10; a vertical transmission push plate 11 is fixedly installed at the bottom rear end of the cleaning transmission slider 9; a vertical transmission push column 12 is fixedly installed at the front bottom end of the vertical transmission push plate 11; the front end of the vertical transmission push column 12 is a hemispherical structure; a conversion shaft 13 is rotatably installed at the center position of the main lamp pole 1; the conversion shaft 13 is located below the driving screw 8; a spiral power conversion screw groove 14 is opened on the circumferential outer wall of the conversion shaft 13; The hemispherical structure of the straight transmission push column 12 is also slidably installed inside the power conversion screw groove 14; the bottom end of the conversion shaft 13 is also fixedly installed with a conversion gear 15; a cleaning sleeve 16 is slidably installed on the smart billboard 5; the cleaning sleeve 16 is also rotatably connected to the other end of the push and expand support connecting rod 10; two protective mounting seats 17 are fixedly installed on the lower half of the main lamp pole 1 in an upper and lower symmetrical arrangement; transmission grooves are also arranged in a surrounding shape on the circumferential outer wall of the upper protective mounting seat 17.

[0036] By starting the driving motor 7, the driving motor 7 rotates with the driving screw 8, so that the driving screw 8 uses the rotation to move the cleaning transmission slider 9 and one end of the pushing and expanding supporting connecting rod 10 downward, and the other end of the pushing and expanding supporting connecting rod 10 expands outward to push the two cleaning sliding sleeves 16, so that the cleaning sliding sleeves 16 are forced to slide outward along the smart billboard 5, and the cleaning sliding sleeves 16 rub against the transparent screen protector 6 during the sliding process, thereby wiping and cleaning the transparent screen protector 6.

[0037] Embodiment 2, on the basis of embodiment 1, a rotating pulley 18 is rotatably mounted on the outer wall of the protective mounting seat 17; a follower transfer ring 19 of annular structure is fixedly mounted on the top of the upper rotating pulley 18; follower grooves are arranged in a circular shape on the circumferential inner wall of the follower transfer ring 19; a protective rotating shaft 20 is rotatably mounted on the rotating pulley 18; a self-rotating wheel 21 is fixedly mounted on the top of the protective rotating shaft 20; the self-rotating wheel 21 is meshed and connected with the protective mounting seat 17 located above through the transmission groove; a transmission wheel 22 is rotatably mounted on the inner front side of the main lamp pole 1; the transmission wheel 22 is meshed and connected with the follower transfer ring 19 through the follower groove; the transmission wheel 22 is also meshed and connected with the conversion gear 15; when the driving motor 7 rotates with the driving screw 8, the driving screw 8 will move downward with the cleaning transmission slider 9 and one end of the push-expanding support connecting rod 10; when one end of the push-expanding support connecting rod 10 moves downward, the other end of the push-expanding support connecting rod 10 will push the cleaning sleeve 16 outward along the smart billboard 5.

[0038] When the cleaning transmission slider 9 moves downward, the cleaning transmission slider 9 will also rotate with the vertical transmission push plate 11 and the vertical transmission push column 12, so that the vertical transmission push column 12 uses the downward movement to cooperate with the spiral power conversion groove 14 to rotate the conversion shaft 13, so that the conversion shaft 13 rotates with the conversion gear 15, and the conversion gear 15 rotates with the transmission wheel 22, the follower transfer ring 19, the rotating pulley 18 and the protective shaft 20.

[0039] Embodiment 3, on the basis of embodiment 2, when the cleaning sleeve 16 moves outward along the smart billboard 5, the inner side of the cleaning sleeve 16 will rub against the outer wall of the transparent screen protector 6; when the cleaning transmission slider 9 moves downward, the vertical transmission push plate 11 will drive the vertical transmission push column 12 to move downward along the power conversion screw groove 14; when the vertical transmission push column 12 moves downward, it will use the spiral structure of the power conversion screw groove 14 to drive the conversion shaft 13 and the conversion gear 15 to rotate; when the conversion gear 15 rotates, it will drive the transmission wheel 22 to rotate; when the transmission wheel 22 rotates, it will also drive the follow-up transfer ring 19 and the rotating pulley 18 to rotate; when the rotating pulley 18 rotates, it will drive multiple protective shafts 20 to rotate with the main lamp pole 1 as the center; when the protective shaft 20 rotates with the rotating pulley 18, the protective shaft 20 will also start to rotate under the action of the engagement between the rotating wheel 21 and the protective mounting seat 17.

[0040] During the rotation of the rotating pulley 18, the protective shaft 20 will begin to rotate with the cooperation of the rotating wheel 21 and the protective mounting seat 17, so that the rotation of the protective shaft 20 can be used to disconnect multiple protective shafts 20 from the illegal advertisements, so that the illegal advertisements are only connected to one protective shaft 20 at most, making it easier for relevant personnel to clean up the illegal advertisements.

[0041] The working principle of this embodiment:

[0042] By starting the driving motor 7, the driving motor 7 rotates with the driving screw 8, so that the driving screw 8 uses the rotation to move the cleaning transmission slider 9 and one end of the push-expanding connecting rod 10 downward, so that the other end of the push-expanding connecting rod 10 expands outward and pushes the two cleaning sliding sleeves 16, so that the cleaning sliding sleeves 16 are forced to slide outward along the smart billboard 5, and the cleaning sliding sleeves 16 rub against the transparent screen protector 6 during the sliding process, so as to wipe and clean the transparent screen protector 6, and when the cleaning transmission slider 9 moves downward, the cleaning transmission slider 9 will also rotate with the vertical transmission push plate 11 and the vertical transmission push column 12, so that the vertical The transmission push column 12 moves downward and cooperates with the spiral power conversion groove 14 to rotate the conversion shaft 13, so that the conversion shaft 13 rotates with the conversion gear 15, and the conversion gear 15 rotates with the transmission transmission wheel 22, the follower transmission ring 19, the rotating pulley 18 and the protective shaft 20. During the rotation, the protective shaft 20 will start to rotate with the cooperation of the self-rotating wheel 21 and the protective mounting seat 17, so that the self-rotation of the protective shaft 20 can make multiple protective shafts 20 break the adhesion with the illegal advertisements, so that the illegal advertisements are only connected to one protective shaft 20 at most, which is convenient for the relevant personnel to clean up the illegal advertisements.

[0043] In this article, there are a few points to note:

[0044] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0045] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0046] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. Intelligent modular street light pole, including: A main lamp pole (1), wherein an intelligent module (2) is fixedly installed on the top of the main lamp pole (1); a lighting lamp body (3) is fixedly installed on the top right end of the main lamp pole (1); the main lamp pole (1) is characterized in that the main lamp pole (1) is a hexagonal prism structure; a component frame rod (4) is fixedly installed on the upper half of the main lamp pole (1) through a clamp; a traffic light or monitoring equipment can be fixed on the component frame rod (4) according to needs; an intelligent billboard (5) is fixedly installed on the left and right sides of the main lamp pole (1) by bolts; a transparent screen protector (6) is installed on the front and rear sides of the intelligent billboard (5) by screw locking; a driving motor (7) is fixedly installed on the internal top of the main lamp pole (1); a driving screw rod (8) is also rotatably installed on the internal top of the main lamp pole (1); the driving screw rod (8) is located below the driving motor (7), and the top of the driving screw rod (8) is connected to the output shaft of the driving motor (7); a cleaning transmission slider (9) is slidably installed inside the main lamp pole (1). ); the cleaning transmission slider (9) is also connected to the driving screw (8) through threads; the left and right sides of the front and rear ends of the cleaning transmission slider (9) are rotatably mounted with push-pushing and expansion connecting rods (10); the bottom rear end of the cleaning transmission slider (9) is fixedly mounted with a vertical transmission push plate (11); the front bottom end of the vertical transmission push plate (11) is fixedly mounted with a vertical transmission push column (12); the front end of the vertical transmission push column (12) is a hemispherical structure; the interior of the main lamp pole (1) A conversion shaft (13) is rotatably mounted in the center position; the conversion shaft (13) is located below the driving screw rod (8); a spiral power conversion screw groove (14) is provided on the circumferential outer wall of the conversion shaft (13); the hemispherical structure of the vertical transmission push column (12) is also slidably mounted inside the power conversion screw groove (14); a conversion gear (15) is also fixedly mounted at the bottom end of the conversion shaft (13); and a cleaning sleeve (16) is slidably mounted on the smart billboard (5).

2. The intelligent modular street light pole according to claim 1, characterized in that: The cleaning sleeve (16) is also rotatably connected to the other end of the push-pull expansion support connecting rod (10); two protective mounting seats (17) are fixedly mounted on the lower half of the main lamp pole (1) in an up-and-down symmetrical arrangement; and transmission grooves are arranged in a circumferential shape on the circumferential outer wall of the protective mounting seat (17) located above.

3. The intelligent modular street light pole according to claim 2, characterized in that: A rotating pulley (18) is rotatably mounted on the outer wall of the protective mounting seat (17); a follower transfer ring (19) of an annular structure is fixedly mounted on the top of the rotating pulley (18); and follower grooves are arranged in a circumferential shape on the circumferential inner wall of the follower transfer ring (19).

4. The intelligent modular street light pole according to claim 3, characterized in that: A protection shaft (20) is rotatably mounted on the rotating pulley (18); a self-rotating wheel (21) is fixedly mounted on the top of the protection shaft (20); and the self-rotating wheel (21) is meshedly connected with a protection mounting seat (17) located above via a transmission groove.

5. The intelligent modular street light pole according to claim 4, characterized in that: A transmission wheel (22) is rotatably mounted on the inner front side of the main lamp pole (1); the transmission wheel (22) is meshedly connected with a follower transfer ring (19) via a follower groove; the transmission wheel (22) is also meshedly connected with a conversion gear (15).

6. The intelligent modular street light pole according to claim 5, characterized in that: When the driving motor (7) drives the driving screw (8) to rotate, the driving screw (8) drives the cleaning transmission slider (9) and one end of the pushing and expanding supporting connecting rod (10) to move downward; when one end of the pushing and expanding supporting connecting rod (10) moves downward, the other end of the pushing and expanding supporting connecting rod (10) pushes the cleaning sliding sleeve (16) outward along the smart billboard (5).

7. The intelligent modular street light pole according to claim 6, characterized in that: When the cleaning sliding sleeve (16) moves outward along the smart billboard (5), the inner side of the cleaning sliding sleeve (16) will rub against the outer wall of the transparent screen protector (6).

8. The intelligent modular street light pole according to claim 7, characterized in that: When the cleaning transmission slide block (9) moves downward, the vertical transmission push plate (11) will drive the vertical transmission push column (12) to move downward along the power conversion screw groove (14); when the vertical transmission push column (12) moves downward, it will utilize the spiral structure of the power conversion screw groove (14) to drive the conversion shaft (13) and the conversion gear (15) to rotate.

9. The intelligent modular street light pole according to claim 8, characterized in that: When the conversion gear (15) rotates, it will drive the transmission wheel (22) to rotate; when the transmission wheel (22) rotates, it will also drive the follower transmission ring (19) and the rotating pulley (18) to rotate.

10. The intelligent modular street light pole according to claim 9, characterized in that: When the rotating pulley (18) rotates, it will drive the plurality of protective rotating shafts (20) to rotate around the main lamp pole (1); when the protective rotating shafts (20) rotate along with the rotating pulley (18), the protective rotating shafts (20) will also start to rotate under the action of the engagement between the self-rotating wheel (21) and the protective mounting seat (17).

Citation Information

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