Intelligent street lamp with rolling type advertising device

Abstract

The invention relates to the technical field of intelligent street lamps, and discloses an intelligent street lamp with a rolling type advertising device.The intelligent street lamp comprises a base, a lamp pole installed on the inner side of the base, a lamp box arranged on the outer wall of the lamp pole and an advertising curtain body detachably installed in the lamp box, and a first magnetic block is slidably arranged on the inner side wall of the lamp box; a second magnetic block is arranged on one side of the first magnetic block, and the second magnetic block and the first magnetic block are magnetically attracted. According to the intelligent street lamp with the rolling type advertising device, the bottom edge of the advertising curtain body is inserted into the gap between the first magnetic block and the second magnetic block, stable clamping force is generated through magnetic attraction of the first magnetic block and the second magnetic block, and residual wrinkles after unwinding are reduced; and the C-shaped block can further limit and fix the bottom edge of the advertising curtain body, and when the advertising curtain body swings under the influence of wind power, the C-shaped block can prevent the advertising curtain body from swinging greatly, so that the possibility that the advertising curtain body flaps and collides with the lamp box is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of smart street lamps, and in particular to a smart street lamp with a roll-up advertising device. Background Art

[0002] Under the sweeping wave of digitalization, traditional fixed advertising forms have gradually exposed many limitations in the application scenarios of smart street lights. It is difficult to change the content of fixed ads after installation, and they cannot flexibly adapt to different promotion cycles. In addition, the form is single and lacks appeal. In this context, roll-up ads came into being. With its unique advantages, it has brought new solutions to the display of smart street light ads and has become an innovative choice to meet the needs of modern advertising and urban construction.

[0003] After searching, it was found that a Chinese patent with publication number CN118757756A discloses a smart street lamp with a roll-up advertising device. By setting a driving component and a roll-up component, the replacement of the advertising curtain becomes extremely convenient. The advertising curtain can be quickly installed, rolled up, unrolled and replaced simply by rotating the wheel. This not only improves work efficiency, but also reduces maintenance costs, providing great convenience for advertisers. In addition, during the installation process, workers do not need to work at high altitudes, reducing the risks during operation.

[0004] In the actual application of the above-mentioned prior art, the advertising curtain is spread out by its own gravity after being unrolled. However, due to the various materials of the advertising curtain (such as common PVC, non-woven fabrics, etc.), the softness and thickness of curtains of different materials are different. For example, the thicker PVC curtain cannot overcome its internal stress by its own gravity, which leads to residual wrinkles after unrolling. In addition, in the outdoor environment, the wind force and direction are unstable. A breeze may cause the curtain to swing, making it difficult to droop and flatten naturally. Strong winds may cause the curtain to shake violently and hit the light box, which may not only fail to flatten, but may also cause the curtain to tear, break, or even fall off the winding device, posing a safety hazard. Summary of the invention

[0005] Technical issues solved In view of the above-mentioned shortcomings of the prior art, the present invention provides a smart street lamp with a roll-up advertising device, which can effectively solve the problem in the prior art that the advertising curtain is not easy to flatten and position after being unrolled due to the influence of itself or external factors. Technical Solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a smart street lamp with a roll-up advertising device, comprising a base, a lamp pole installed on the inner side of the base, a light box arranged on the outer wall of the lamp pole, and an advertising curtain body detachably installed in the light box, characterized in that: a first magnetic block is slidably arranged on the inner side wall of the light box, a second magnetic block is arranged on one side of the first magnetic block, and the second magnetic block is magnetically attracted to the first magnetic block, and a gap for inserting the bottom edge of the advertising curtain body is arranged between the first magnetic block and the second magnetic block; Two C-shaped blocks are arranged on the inner bottom wall of the light box, and the openings of the two C-shaped blocks are arranged opposite to each other.

[0007] Furthermore, a lifting mechanism is provided between the base and the lamp pole, an arc block is integrally formed on the top of the base, a mounting frame is provided on the inner bottom wall of the light box, a moving rod is linearly slidably provided in the mounting frame, the second magnetic block is fixedly sleeved on one end of the moving rod, and the end of the moving rod away from the second magnetic block is provided as an arc surface.

[0008] Furthermore, the sliding path of the moving rod is perpendicular to the sliding path of the first magnetic block, a positioning ring is provided at one end of the moving rod away from the second magnetic block, and a first reset member is connected between the outer wall of the positioning ring and the outer wall of the mounting frame; When the end of the moving rod does not contact the arc block, the first reset member is in a natural state.

[0009] Furthermore, the inner cavity of the light box is provided with a fixed roller for installing the advertising curtain body, one end of the fixed roller is provided with a vertical groove, a limit block is slidably arranged in the vertical groove, and a second reset member is connected between the outer wall of the limit block and the inner wall of the fixed roller.

[0010] Furthermore, a lubrication mechanism is arranged on a side of the second magnetic block away from the first magnetic block, and the lubrication mechanism includes a liquid storage box arranged in the inner cavity of the light box for storing lubricating liquid, a liquid storage cylinder is arranged on the top of the liquid storage box, and a liquid outlet pipe is arranged on the outer wall of the liquid storage cylinder.

[0011] Furthermore, a piston rod is slidably installed in the liquid storage cylinder, and the diameter of the piston rod is adapted to the inner diameter of the liquid storage cylinder, the tail end of the piston rod is connected to one end of the moving rod through a connecting block, and a horizontal sliding groove for the connecting block to move is provided on the wall of the liquid storage cylinder; A one-way liquid inlet valve is arranged between the liquid storage box and the liquid storage cylinder, and a one-way liquid outlet valve is arranged on the liquid outlet pipe.

[0012] Furthermore, a liquid filling port is provided on the wall of the liquid storage box, and a sealing plug is provided on the liquid filling port.

[0013] Furthermore, the lifting mechanism includes a screw rod rotatably arranged in the inner cavity of the base through a bearing, a limiting hole adapted to the shape of the lamp pole is opened on the top of the base, an internal thread is arranged on the inner side of the lamp pole, and the lamp pole thread is installed on the surface of the screw rod.

[0014] Furthermore, the end of the liquid outlet pipe away from the liquid storage cylinder extends to the inner thread surface of the lamp pole; When the lamp pole moves downward through the screw rod, the liquid outlet pipe can transport the lubricating liquid in the liquid storage cylinder to the internal thread of the lamp pole to lubricate the threaded connection portion between the screw rod and the lamp pole.

[0015] In the present invention, the bottom edge of the advertising curtain body is inserted into the gap between the first magnetic block and the second magnetic block, and the magnetic attraction between the first magnetic block and the second magnetic block is used to generate a stable clamping force. This clamping method can apply a uniform pulling force to the advertising curtain body, reduce the residual wrinkles after unwinding, and the C-shaped block can further limit and fix the bottom edge of the advertising curtain body. When the advertising curtain body is affected by wind and swings, the C-shaped block can prevent it from shaking significantly, limit the displacement of the advertising curtain body in the horizontal direction, and reduce the possibility of the advertising curtain body and the light box hitting and colliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of a light box according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a second magnetic block according to an embodiment of the present invention; Figure 4 is a schematic cross-sectional structural diagram of a first magnetic block according to an embodiment of the present invention; Figure 5 It is a schematic cross-sectional structure diagram of a fixed roller according to an embodiment of the present invention; Figure 6 This is a schematic structural diagram of a liquid storage box according to an embodiment of the present invention; Figure 7 It is a cross-sectional structural schematic diagram of a liquid storage cartridge according to an embodiment of the present invention; Figure 8 It is a schematic cross-sectional structural diagram of a base according to an embodiment of the present invention.

[0018] The numbers in the figure represent: 1. base; 2. lamp pole; 3. light box; 4. advertising screen body; 5. first magnetic block; 6. second magnetic block; 7. C-shaped block; 8. arc block; 9. mounting bracket; 10. moving rod; 11. positioning ring; 12. first reset member; 13. fixed roller; 14. limit block; 15. second reset member; 16. liquid storage box; 17. liquid storage cylinder; 18. liquid outlet pipe; 19. piston rod; 20. one-way liquid inlet valve; 21. one-way liquid outlet valve; 22. liquid filling port; 23. screw rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] Example 1, reference Figure 1 - Figure 5 , which is the first embodiment of the present invention, provides a smart street lamp with a roll-up advertising device, including a base 1, a lamp pole 2 that can be lifted and lowered on the inner side of the base 1, a light box 3 that is welded or fixedly mounted on the outer wall of the lamp pole 2, and an advertising curtain body 4 that can be detachably mounted in the light box 3. The side walls of the light box 3 are rotatably mounted with side panels through torsion springs, which is convenient for replacing the advertising curtain body 4 at a later time.

[0022] Since the advertising curtain body 4 is made of various materials (such as common PVC, non-woven fabrics, etc.), the softness and thickness of curtains made of different materials are different. For example, the thicker PVC curtain cannot overcome its internal stress due to its own gravity, which leads to residual wrinkles after unwinding. In addition, in outdoor environments, the wind force and direction are unstable, and a breeze will cause the curtain to swing, making it difficult to droop and flatten naturally. Strong winds may cause the advertising curtain body 4 to shake violently and hit the light box 3, which will not only make it impossible to flatten, but may also cause the advertising curtain body 4 to tear or break, or even cause the advertising curtain body 4 to fall off from the light box 3, posing a safety hazard.

[0023] Reference Figure 2 and Figure 3 A first magnetic block 5 is linearly slidably installed on the inner wall of the light box 3, a second magnetic block 6 is arranged on one side of the first magnetic block 5, and the second magnetic block 6 is magnetically attracted to the first magnetic block 5, and a gap is arranged between the first magnetic block 5 and the second magnetic block 6 for inserting the bottom edge of the advertising curtain body 4; two C-shaped blocks 7 are welded or fixedly installed on the inner bottom wall of the light box 3, and the openings of the two C-shaped blocks 7 are arranged opposite to each other.

[0024] Specifically, the bottom edge of the advertising curtain body 4 is inserted into the gap between the first magnetic block 5 and the second magnetic block 6, and the magnetic attraction between the first magnetic block 5 and the second magnetic block 6 is used to generate a stable clamping force. This clamping method can apply uniform tension to the advertising curtain body 4, overcome the internal stress of the curtains of different materials, and reduce the residual wrinkles after unwinding. The C-shaped block 7 can further limit and fix the bottom edge of the advertising curtain body 4. When the advertising curtain body 4 is affected by the wind and swings, the C-shaped block 7 can prevent it from shaking significantly, limit the horizontal displacement of the advertising curtain body 4, and reduce the possibility of the advertising curtain body 4 and the light box 3 hitting and colliding. Compared with relying on the gravity of the curtain to flatten, the clamping force of the magnetic block is more stable and is not affected by the curtain material and uneven gravity distribution, ensuring that the advertising curtain body 4 can remain flat and improve the advertising display effect.

[0025] Reference Figure 2 and Figure 3 A lifting mechanism is installed between the base 1 and the lamp pole 2, the top of the base 1 is integrally connected with an arc block 8, a mounting frame 9 is welded or fixedly installed on the inner bottom wall of the light box 3, a moving rod 10 is linearly slidably installed in the mounting frame 9, the second magnetic block 6 is fixedly sleeved on one end of the moving rod 10, and the end of the moving rod 10 away from the second magnetic block 6 is set to an arc surface.

[0026] Specifically, the lifting mechanism can be composed of a hydraulic pump, a hydraulic cylinder, a hydraulic pipeline and a control system. The hydraulic pump transports the hydraulic oil to the hydraulic cylinder through the pipeline to push the piston to move. The piston is connected to the lamp pole 2, thereby driving the lamp pole 2 to rise and fall. The control system can accurately control the flow and pressure of the hydraulic oil to achieve a smooth and stepless lifting and lowering operation of the lamp pole 2. The hydraulic lifting mechanism has the advantages of smooth lifting, large load-bearing capacity, and low noise. It is suitable for smart street lamps that need to frequently lift and replace the advertising curtain body 4 and have high requirements for stability.

[0027] Specifically, when the advertising screen body 4 needs to be replaced, the lamp pole 2 descends in the base 1, so that the distance between the moving rod 10 and the arc block 8 gradually decreases. When one end of the moving rod 10 approaches the arc block 8, the moving rod 10 is pushed to the side away from the arc block 8 by the squeezing of its outer wall. In this way, by pushing the second magnetic block 6 laterally and in parallel, the magnetic field distribution characteristics between the magnets are utilized. The lateral movement can weaken or destroy the attraction between the first magnetic block 5 and the second magnetic block 6, so that the attraction between the first magnetic block 5 and the second magnetic block 6 is separated from the first magnetic block 5 when it moves to a certain interval. The bottom edge of the advertising screen body 4 is loosened from the gap between the first magnetic block 5 and the second magnetic block 6, which is convenient for the staff to remove the old advertising screen body 4.

[0028] Reference Figure 3The sliding path of the moving rod 10 is perpendicular to the sliding path of the first magnetic block 5. A positioning ring 11 is fixedly sleeved on one end of the moving rod 10 away from the second magnetic block 6. A first reset member 12 is connected between the outer wall of the positioning ring 11 and the outer wall of the mounting frame 9. When the end of the moving rod 10 does not contact the arc block 8, the first reset member 12 is in a natural state.

[0029] Specifically, the first reset member 12 is preferably a compression spring that can withstand axial compression force; when one end of the moving rod 10 is squeezed by the outer wall of the arc block 8, the first reset member 12 is gradually compressed, so that after the lamp pole 2 is installed with a new advertising curtain body 4 and rises, under the elastic action of the first reset member 12, the moving rod 10 can drive the second magnetic block 6 to reset, and the moving rod 10 drives the second magnetic block 6 to move in the direction close to the first magnetic block 5. When the second magnetic block 6 approaches the first magnetic block 5 to a certain distance, the magnetic attraction between the two is restored, and the bottom edge of the advertising curtain body 4 is clamped and fixed again. In this process, the two C-shaped blocks 7 on the inner bottom wall of the light box 3 always provide auxiliary limiting function for the bottom edge of the advertising curtain body 4, ensuring that the advertising curtain will not shake or deviate significantly during installation and replacement, making the replacement operation of the advertising curtain more convenient and efficient, while ensuring the display effect and stability of the newly installed advertising curtain.

[0030] Example 2, reference Figure 1 - Figure 3 ,as well as Figure 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a fixed roller 13 for installing the advertising curtain body 4 is welded or fixedly installed in the inner cavity of the light box 3, and a vertical groove is opened at one end of the fixed roller 13. A limiting block 14 is slidably connected in the vertical groove, and a second reset member 15 is connected between the outer wall of the limiting block 14 and the inner wall of the fixed roller 13.

[0031] Specifically, the rollers provided with the advertising curtain body 4 can be pre-wound with the advertising curtain. During installation, it only needs to be directly put on the fixed rollers 13 in the inner cavity of the light box 3. Compared with the method of directly winding the advertising curtain on the fixed rollers 13, the time and difficulty of on-site installation are greatly reduced. The staff does not need to spend a lot of time on winding and fixing the advertising curtain, thereby improving the replacement efficiency of the advertising curtain.

[0032] Specifically, the second reset member 15 is preferably a spring or a compression spring; when the advertising curtain body 4 needs to be replaced, the staff applies external force to overcome the elastic force of the second reset member 15, pushes the limit block 14 into the vertical groove, and makes the limit block 14 away from the side wall of the advertising curtain body 4, so that the old advertising curtain can be easily removed from the fixed roller 13. After replacing the new advertising curtain, the limit block 14 is released, and under the elastic action of the second reset member 15, the limit block 14 is immediately pushed to re-fix the new advertising curtain body 4, and the entire replacement process is simple and convenient. The remaining structure is the same as that of Example 1.

[0033] Example 3, reference Figure 1 - Figure 8 , which is the third embodiment of the present invention, and this embodiment is different from the first embodiment in that: a lubricating mechanism is installed on the side of the second magnetic block 6 away from the first magnetic block 5, and the lubricating mechanism includes a liquid storage box 16 installed in the inner cavity of the light box 3 for storing lubricating liquid, and a liquid filling port 22 is provided on the wall of the liquid storage box 16, and a sealing plug (such as Figure 6 The top of the liquid storage box 16 is fixedly mounted with a liquid storage cylinder 17, and a liquid outlet pipe 18 is detachably mounted on the outer wall of the liquid storage cylinder 17.

[0034] Reference Figure 7 A piston rod 19 is slidably installed in the liquid storage cylinder 17, and the diameter of the piston rod 19 is adapted to the inner diameter of the liquid storage cylinder 17. A rod body is connected to the outer wall of the piston rod 19, and the tail end of the rod body of the piston rod 19 is connected to one end of the moving rod 10 through a connecting block, and a horizontal slide groove for the connection block to move is provided on the wall of the liquid storage cylinder 17; a one-way liquid inlet valve 20 is installed between the liquid storage box 16 and the liquid storage cylinder 17, and a one-way liquid outlet valve 21 is installed on the liquid outlet pipe 18.

[0035] Specifically, the one-way liquid inlet valve 20 allows the lubricating liquid in the liquid storage box 16 to flow into the liquid storage cylinder 17 in one direction only, preventing the lubricating liquid in the liquid storage cylinder 17 from flowing back into the liquid storage box 16, thereby ensuring the directionality and stability of the flow of the lubricating liquid; the one-way liquid outlet valve 21 can ensure that each time the piston rod 19 is pushed, the lubricating liquid in the liquid storage cylinder 17 is discharged in a predetermined direction and amount, thereby preventing the lubricating liquid from flowing randomly during the reciprocating motion of the piston rod 19, and being unable to control the amount of lubricating liquid delivered to the threaded connection each time.

[0036] Specifically, the lubricating liquid is added to the liquid storage box 16 through the liquid filling port 22. When the lamp pole 2 descends, the moving rod 10 moves synchronously with the lamp pole 2. Since the piston rod 19 is connected to the moving rod 10 through the connecting block, the moving rod 10 drives the piston rod 19 to slide in the liquid storage cylinder 17. As the piston rod 19 moves away from the liquid outlet pipe 18, the pressure in the liquid storage cylinder 17 decreases. Under the action of the one-way liquid inlet valve 20, the lubricating liquid in the liquid storage box 16 flows into the liquid storage cylinder 17 to replenish the amount of lubricating liquid in the liquid storage cylinder 17. When the lamp pole 2 rises, the moving rod 10 drives the piston rod 19 to move toward the liquid outlet pipe 18, and the pressure in the liquid storage cylinder 17 increases. At this time, the one-way liquid inlet valve 20 is closed to prevent the lubricating liquid from flowing back to the liquid storage box 16. At the same time, the one-way liquid outlet valve 21 is opened, and the lubricating liquid in the liquid storage cylinder 17 flows out through the liquid outlet pipe 18 under the action of pressure.

[0037] Reference Figure 8 The lifting mechanism includes a screw rod 23 rotatably installed in the inner cavity of the base 1 through a bearing. A limiting hole adapted to the shape of the lamp pole 2 is opened on the top of the base 1. An internal thread is arranged on the inner side of the lamp pole 2. The lamp pole 2 is threadedly installed on the surface of the screw rod 23. The end of the liquid outlet pipe 18 away from the liquid storage cylinder 17 extends to the internal thread surface of the lamp pole 2. When the lamp pole 2 moves downward through the screw rod 23, the liquid outlet pipe 18 can transport the lubricating liquid in the liquid storage cylinder 17 to the internal thread of the lamp pole 2 to lubricate the threaded connection between the screw rod 23 and the lamp pole 2.

[0038] Specifically, the screw rod 23 can be driven in a variety of ways to achieve the lifting and lowering operation of the lamp pole 2. A common driving method is to drive by a motor, such as Figure 8 As shown, a reduction motor is installed in the base 1, and the output shaft of the motor is connected to one end of the screw 23 through a bevel gear set. When the reduction motor is running, the torque output by the reduction motor is transmitted to the screw 23, driving the screw 23 to rotate. The reduction motor can adjust the speed and torque according to actual needs to ensure that the lamp pole 2 is raised and lowered smoothly and at a uniform speed. For example, in some places where the height of the lamp pole needs to be adjusted frequently to adapt to different environments, such as smart street lights near road construction areas, a variable frequency reduction motor that can accurately control the speed can be selected. The motor speed is adjusted according to the actual situation through the control system, thereby accurately controlling the lifting speed and position of the lamp pole 2.

[0039] In addition, manual drive can also be used. A manual crank is installed at one end of the screw rod 23. When the height of the lamp pole 2 needs to be adjusted, the staff can drive the screw rod 23 by turning the manual crank. Although this method is relatively laborious, it has high practicality and flexibility in some areas where power supply is inconvenient or automation requirements are not high. For example, in some remote rural areas, maintenance personnel of smart street lamps can use a manual crank to lift and lower the lamp pole 2, which is convenient for replacing advertising curtains or repairing lamps. The rest of the structure is the same as that of Example 2.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smart street lamp with a roll-up advertising device, comprising a base (1), a lamp pole (2) mounted on the inner side of the base (1), a light box (3) arranged on the outer wall of the lamp pole (2), and an advertising curtain body (4) detachably mounted in the light box (3), characterized in that: A first magnetic block (5) is slidably disposed on the inner side wall of the light box (3); a second magnetic block (6) is disposed on one side of the first magnetic block (5); the second magnetic block (6) and the first magnetic block (5) are magnetically attracted to each other; and a gap is provided between the first magnetic block (5) and the second magnetic block (6) for inserting the bottom edge of the advertising curtain body (4); Two C-shaped blocks (7) are arranged on the inner bottom wall of the light box (3), and the openings of the two C-shaped blocks (7) are arranged opposite to each other.

2. The smart street lamp with a roll-up advertising device according to claim 1, characterized in that: A lifting mechanism is provided between the base (1) and the lamp pole (2); an arc block (8) is integrally formed on the top of the base (1); a mounting frame (9) is provided on the inner bottom wall of the lamp box (3); a moving rod (10) is linearly slidably provided in the mounting frame (9); the second magnetic block (6) is fixedly sleeved on one end of the moving rod (10); and one end of the moving rod (10) away from the second magnetic block (6) is provided as an arc surface.

3. The smart street lamp with a roll-up advertising device according to claim 2, characterized in that: The sliding path of the moving rod (10) is perpendicular to the sliding path of the first magnetic block (5); a positioning ring (11) is provided at one end of the moving rod (10) away from the second magnetic block (6); a first reset member (12) is connected between an outer wall of the positioning ring (11) and an outer wall of the mounting frame (9); When the end of the moving rod (10) does not contact the arc-shaped block (8), the first reset member (12) is in a natural state.

4. The smart street lamp with a roll-up advertising device according to claim 1, characterized in that: The inner cavity of the light box (3) is provided with a fixed roller (13) for mounting the advertising curtain body (4), one end of the fixed roller (13) is provided with a vertical groove, a limit block (14) is slidably arranged in the vertical groove, and a second reset member (15) is connected between the outer wall of the limit block (14) and the inner wall of the fixed roller (13).

5. The smart street lamp with a roll-up advertising device according to claim 2 or 3, characterized in that: A lubricating mechanism is provided on a side of the second magnetic block (6) away from the first magnetic block (5), the lubricating mechanism comprising a liquid storage box (16) arranged in the inner cavity of the light box (3) for storing lubricating liquid, a liquid storage cylinder (17) being provided on the top of the liquid storage box (16), and a liquid outlet pipe (18) being provided on the outer wall of the liquid storage cylinder (17).

6. The smart street lamp with a roll-up advertising device according to claim 5, characterized in that: A piston rod (19) is slidably mounted in the liquid storage cylinder (17), and the diameter of the piston rod (19) is adapted to the inner diameter of the liquid storage cylinder (17). The tail end of the piston rod (19) is connected to one end of the moving rod (10) via a connecting block, and a horizontal sliding groove for the connecting block to move is provided on the wall of the liquid storage cylinder (17); A one-way liquid inlet valve (20) is provided between the liquid storage box (16) and the liquid storage cylinder (17), and a one-way liquid outlet valve (21) is provided on the liquid outlet pipe (18).

7. The smart street lamp with a roll-up advertising device according to claim 5, characterized in that: A liquid filling port (22) is provided on the wall of the liquid storage box (16), and a sealing plug is provided on the liquid filling port (22).

8. The smart street lamp with a roll-up advertising device according to claim 5, characterized in that: The lifting mechanism comprises a screw rod (23) rotatably arranged in the inner cavity of the base (1) via a bearing, a limiting hole matching the outer shape of the lamp pole (2) is provided on the top of the base (1), an internal thread is provided on the inner side of the lamp pole (2), and the lamp pole (2) is threadedly mounted on the surface of the screw rod (23).

9. The smart street lamp with a roll-up advertising device according to claim 8, characterized in that: One end of the liquid outlet pipe (18) away from the liquid storage cylinder (17) extends to the internal thread surface of the lamp pole (2); When the lamp pole (2) moves downward via the screw rod (23), the liquid outlet pipe (18) can transport the lubricating liquid in the liquid storage cylinder (17) to the internal threads of the lamp pole (2), thereby lubricating the threaded connection portion between the screw rod (23) and the lamp pole (2).

Images