A flag hanging and lifting device and method for intelligent street lamp

Abstract

This invention discloses a flag-mounting and lifting device and method for smart streetlights. The light pole has a cavity containing a square steel guide rail and an aluminum alloy shell. The aluminum alloy shell houses an upper column and a lower column, with one end of the lower column movably connected to the same end of the upper column. A rotating shaft is located inside the upper column, around which the flag is wound. The other end of the flag is connected to the lower column. One end of the rotating shaft is connected to a first motor. A round nut is located at one end of the lower column and is positioned on the square steel guide rail. A second motor is fixed inside the aluminum alloy shell, and its output shaft is connected to a gear set. A shaft passes through the center of a large gear and the upper column shell, allowing the upper column shell to rotate around the shaft. This invention achieves efficient integration of the flag-mounting mechanism and the streetlight body by providing a dedicated mounting cavity within the light pole. The structure is reasonable and highly integrated, effectively solving the problems of space occupation and poor aesthetics associated with existing separate or simple stacking methods.

Description

Technical Field

[0001] This invention belongs to the field of smart street light structural design technology, specifically relating to a smart street light flag mounting and lifting device and method. Background Technology

[0002] As a core terminal carrier for smart city construction, smart streetlights are municipal infrastructure equipment integrating multiple functions such as lighting control, environmental monitoring, video surveillance, 5G communication, and information dissemination. They have been widely used in public scenarios such as urban roads, municipal squares, parks, and stadiums. With the increasing demand for cultural connotations and public etiquette displays in municipal infrastructure construction, integrating street flag raising and lowering functions into smart streetlights to achieve the integration of "lighting + smart services + street flag display" has become an important direction for industry development.

[0003] In existing technologies, the integration of street flag raising devices with smart streetlights mainly takes two forms: one is that the two are set up separately, with separate planning of installation space and construction process; the other is that the street flag raising mechanism is directly mounted or superimposed on the smart streetlight pole. The former requires repeated occupation of urban public space, resulting in a significant increase in construction and operation and maintenance costs, and also damages the overall aesthetics of municipal facilities; the latter simplifies the installation process, but suffers from many technical defects due to structural design limitations.

[0004] The current practice of manually removing and installing street flags on streetlights, despite its low level of automation, inefficiency, and significant safety hazards, results in a serious waste of human resources in the market.

[0005] The layout is not integrated with the internal structure of the smart street light, resulting in serious spatial conflicts with the lighting modules, communication modules, sensors and cable layout inside the street light pole. This can easily lead to messy cables, poor heat dissipation of equipment, and affect the normal operation of the original functions of the smart street light.

[0006] The flagpole lifting mechanism was not designed with professional mechanical adaptation. The extra load can easily cause local stress concentration on the pole, reducing the pole's wind and earthquake resistance, and posing a safety hazard in the long term.

[0007] The lifting guide rail and transmission components lack a precise positioning and fixing structure, making it prone to jamming and deviation during the lifting process, which cannot meet the requirements for standardized and smooth lifting of banners in public etiquette scenarios.

[0008] Without standardized assembly and maintenance interfaces, disassembly and repair can easily cause secondary damage to the street light pole and internal components, making operation and maintenance difficult. Summary of the Invention

[0009] 1. The technical problem to be solved:

[0010] This invention provides a smart street light flag-mounting device with a flag-raising mechanism that is structurally sound, highly adaptable, stable in operation, and easy to maintain, ensuring both the normal functioning of the original smart street light and the standardized and smooth raising and lowering of the flags.

[0011] 2. Technical Solution:

[0012] This invention provides a smart street light flag-mounting and lifting device, including a lamp post with a cavity inside. The cavity contains a square steel guide rail and an aluminum alloy shell. The aluminum alloy shell contains an upper column and a lower column. One end of the lower column is movably connected to the same end of the upper column. A rotating shaft is located inside the upper column, and the flag is wound around this shaft. The other end of the flag is connected to the lower column. One end of the rotating shaft is connected to the output end of a first motor via a rolling bearing, a coupling, and a round nut on the square steel guide rail. The device also includes a second motor, fixed inside the aluminum alloy shell and on the same plane as the square steel guide rail. The output shaft of the second motor is connected to a pinion gear, which meshes with a large gear fixed to the upper column shell. A shaft passes through the center of the large gear and the upper column shell, allowing the upper column shell to rotate around this shaft.

[0013] The rotating shaft is a three-section composite structure, including a head section, a quick-release section and a tail section connected in sequence. The head section and the tail section are fixed ends, and the middle section is a quick-release section used for winding the flag. The quick-release section is meshed with the head section and the tail section.

[0014] The round nut is provided with a first deep groove ball bearing that fits tightly against the round nut.

[0015] Symmetrical bearing seats are provided on both sides of the square steel guide rail, and a second deep groove ball bearing is installed on each bearing seat. Each bearing seat is also provided with a chamfer plate, and the original opening formed by the two chamfer plates is smaller than the diameter of the round nut.

[0016] Guide grooves are provided on both sides of the square steel guide rail.

[0017] The lower end column is a counterweight rod. When the banner is unfolded, the lower end column slides downward along the square steel guide rail under the action of its own counterweight.

[0018] The bottom of the cavity is provided with a spring door groove, and a spring is installed in the spring door groove. When the road flag is in the storage state, the upper end of the spring is connected to the bottom of the upper column housing, and the lower end is connected to the bottom of the spring door groove.

[0019] The upper column housing is provided with a dustproof baffle at its end.

[0020] The lamppost adopts a symmetrical cavity, and each cavity is equipped with an independent flag raising and lowering mechanism. The two cavities are arranged symmetrically with the central axis of the lamppost as the reference.

[0021] This invention also provides a method for mounting and raising road flags for smart streetlights, using the aforementioned smart streetlight road flag mounting and raising device. The road flag raising process is as follows:

[0022] Upper column unfolds: The second motor rotates clockwise, driving the upper column to rotate from the inside of the lamp post to the outside. At this time, the lower column is in contact with the upper column and unfolds synchronously with the upper column.

[0023] Upper column positioning: When the upper column rotates to a horizontal position perpendicular to the lamp post, the second motor triggers the limit switch at the baffle, and the second motor stops rotating;

[0024] Banner unfolding: The first motor rotates counterclockwise, driving the shaft core to rotate synchronously. At the same time, the lower column slides down along the square steel guide rail under its own counterweight, and the banner gradually unfolds as the shaft core rotates.

[0025] When the bottom post slides to below the opening of the lamp post, its bottom contacts the spring and gradually presses down. The spring descends in the reserved groove of the lamp post, leaving space for the road flag to unfold.

[0026] The raising of the road flag is completed: after the lower post slides to the bottom of the square steel guide rail, the limit switch at the lower baffle plate is triggered, the first motor stops rotating, and the road flag is fully extended.

[0027] The process of collecting street flags is as follows:

[0028] Road flag winding: The first motor rotates clockwise, driving the shaft core to rotate synchronously. The road flag is gradually wound to the outside of the shaft core, while the lower end column slides upward along the square steel guide rail.

[0029] As the lower column slides upward, the spring moves upward synchronously under its own elastic force;

[0030] Lower column fixing: When the lower column slides to the position of the upper column, it connects with the upper column to fix the lower column and the upper column.

[0031] The second motor rotates counterclockwise, causing the upper and lower columns to rotate synchronously into the lamp post.

[0032] Once the banner collection is complete: after the upper and lower posts are fully retracted into the cavity of the lamp post, the limit switch at the upper post is triggered, and the second motor stops rotating; at this time, the upper and lower posts fit perfectly with the lamp post.

[0033] 3. Beneficial effects:

[0034] This invention adopts an integrated structural design of the smart street light body and the flag lifting mechanism. By setting a dedicated installation cavity inside the light pole, the efficient integration of the flag lifting mechanism and the street light body is achieved. The structure is reasonable and highly integrated, effectively solving the problems of space occupation and poor aesthetics that exist in the existing separate settings or simple stacking methods. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention.

[0036] Figure 2 This is a schematic diagram of the rotating structure.

[0037] Figure 3 This is a schematic diagram of the lower column and the square steel guide rail.

[0038] Figure 4 This is a schematic diagram of the large gear and the small gear.

[0039] Figure 5 This is a diagram showing the unfolded state of the flag.

[0040] Figure 6 This is a diagram showing the unfolding of the double-lane flags.

[0041] Explanation of reference numerals in the attached drawings: 1. Aluminum alloy shell; 2. Square steel track; 3. Upper column shell; 4. First motor; 5. Second motor; 6. Lower column; 7. Upper column; 8. Coupling; 9. Rotating shaft; 91. Head shaft section; 92. Quick-release shaft section; 93. Tail shaft section; 10. Dustproof baffle; 11. Rolling bearing; 12. Pinion; 13. Round nut; 14. Chamfer plate; 15. Slot; 16. Large gear; 17. First deep groove ball bearing; 18. Bearing housing; 19. Second deep groove ball bearing; 20. Lamp post; 21. Spring; 22. Spring door groove; 23. Road flag. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] like Figure 1As shown, a smart street light flag-mounting and lifting device includes a lamp post 20, with a cavity inside. A square steel guide rail 2 and an aluminum alloy shell 1 are located within the cavity. An upper column 7 and a lower column 6 are located within the aluminum alloy shell 1. One end of the lower column 6 is movably connected to the same end of the upper column 7. A rotating shaft 9 is located inside the upper column 6, and the flag is wound around the rotating shaft 9. The other end of the flag is connected to the lower column 6. One end of the rotating shaft 9 is connected to the output end of a first motor 4 via a rolling bearing 11, a coupling 8, and a round nut 13 at one end of the lower column 6. The round nut 13 is mounted on the square steel guide rail 2. The device also includes a second motor 5, which is fixed inside the aluminum alloy shell 1 and located on the same plane as the square steel guide rail 2. The output shaft of the second motor 5 is connected to a pinion 12, which meshes with a large gear 16 fixed on the upper column shell 3. Figure 4 A shaft passes through the center of the large gear 16 and the upper end column housing 3, the upper end column housing 7 being able to rotate around the shaft.

[0044] When the banner is needed, the second motor 5 drives the pinion 12. Since the pinion 12 meshes with the large gear 16, it drives the large gear 16. Because the large gear is connected to the upper post housing 3, it causes the upper post housing 3 to rotate, exiting the cavity until it is perpendicular to the light post 20. The meshing of the pinion 12 and the large gear 16 ensures stable power and uniform speed during the lifting process, solving the problems of lifting jamming and speed fluctuations in existing technologies.

[0045] Then the first motor 4 rotates, driving the shaft center 9 to rotate, and the wound banner 23 slowly unfolds. One end of the lower post 6 slides down the square steel guide rail through the round nut 13 until the banner is fully unfolded. Figure 5 As shown.

[0046] This invention utilizes a first motor 4 and a second motor 5 to enable the flags of the flag-mounting device to pass through, achieving automatic rolling and unfolding, and allowing the flag-mounting device to be deployed and stored inside the streetlight. Through the design of the flag-mounting device's structural frame, the device achieves integration and compactness. The structural frame mainly includes a square steel guide rail 2 and an aluminum alloy shell 1. This frame design allows the device to be directly installed inside the streetlight during production. All mechanisms are housed within the sealed rectangular aluminum alloy shell, making the device aesthetically pleasing and seamlessly integrated with the streetlight, preventing environmental corrosion and extending the device's lifespan. It also minimizes the risk of the device damaging the streetlight's structural strength.

[0047] In one embodiment, the rotating shaft 9 is a three-section composite structure, such as... Figure 2As shown, the structure includes a head section 91, a quick-release section 92, and a tail section 93 connected in sequence. The head section 91 and the tail section 93 are fixed ends, while the middle section, the quick-release section 92, is used to wind the banner flag 23. The quick-release section 92 is engaged with the head section 91 and the tail section 93. When the banner needs to be replaced, maintenance personnel only need to loosen the engaging locking mechanism to remove the middle section along with the old banner and replace it with the section already wrapped with the new banner. This modular design greatly reduces on-site operation time.

[0048] In one embodiment, such as Figure 3 As shown, a first deep groove ball bearing 17 is provided on the outside of the round nut 13, which fits tightly against the round nut 13. The presence of the first deep groove ball bearing 17 makes the sliding of the lower end rod 6 smoother.

[0049] In one embodiment, such as Figure 4 As shown, symmetrical bearing seats 18 are provided on both sides of the square steel guide rail 2, and a second deep groove ball bearing 19 is provided on each bearing seat 18. Due to the presence of the second deep groove ball bearing 19, both sides can perform rolling motion, and the upper rod housing 3 can enter the cavity more easily.

[0050] In one embodiment, each bearing housing 18 is also provided with a chamfered plate 14, and the original opening formed by the two chamfered plates 14 is smaller than the diameter of the round nut 13. When the upper end cover housing 3 is rotated out of the cavity, since the original opening of the two chamfered plates 14 is smaller than the diameter of the round nut 13, it provides support for the lower end post 6, so that the lower end post 6 will not wobble or fall off the upper end post 7 prematurely. When the upper end cover housing 3 and the lamp post 20 are perpendicular, the round nut 13 is downward, which increases the opening, and it can slide down easily through the opening. Similarly, when storing, from bottom to top, the lower end post 6 can pass through the opening more easily.

[0051] In one embodiment, the first deep groove ball bearing 17 moves to the end of the square steel guide rail 2. The square steel guide rail 2 has a guide groove 15 on both sides. The downward bending moment component of the lower column forces the bearing to press more tightly and deeply into the inclined surface of the guide groove 15. The torque generated by the external wind force is converted into a normal pressure of the bearing on the inclined surface, thereby achieving self-locking of the mechanism and counteracting the influence of wind load.

[0052] In one embodiment, the lower end column 6 is a counterweight rod. When the banner is unfolded, the lower end column 6 slides downward along the square steel guide rail 2 under its own counterweight. Through the counterweight of the lower end column 6 and the self-locking engagement between the round nut 13 at the tail end of the lower end column 6 and the guide groove 15, the device is wind-resistant and can withstand the impact of level 5 winds.

[0053] In one embodiment, when the length of the road flag is greater than its width, since the length of the cavity opening is roughly the same as the width of the road flag, the road flag cannot be fully unfolded due to the limited length of the cavity. Therefore, a spring-loaded door groove 22 is provided at the bottom of the cavity, and a spring 21 is provided inside the spring-loaded door groove 22. When the road flag 23 is in the retracted state, the upper end of the spring 21 is connected to the bottom of the upper column housing 3, and the lower end is connected to the bottom of the spring-loaded door groove 22.

[0054] When the road flag is stored in the cavity, the spring 21 applies an upward force to the upper column housing 3, ensuring its stability within the cavity. When the road flag is unfolded, the lower column 6 slides below the opening of the lamp post 20, its bottom contacts the spring 21 and gradually presses down. The spring 21 descends in the pre-reserved slot of the lamp post 20, providing space for the road flag 23 to unfold. When the road flag is retracted, the spring returns to its original position, pulling the upper column housing down to fit tightly with the lamp post. The baffle limits the upper column housing, ensuring a closed gap of ≤0.1mm, thus avoiding structural interference and maintaining the overall aesthetics of the lamp post, resolving the conflict between function and aesthetics in the prior art.

[0055] In one embodiment, a dustproof baffle 10 is provided at the end of the upper column housing 3. This achieves a waterproof and dustproof seal for the cavity, effectively protecting the street flag device structure from harsh environmental conditions. When severe weather occurs, such as heavy rain, strong winds, or smog, maintenance personnel can remotely control the device to be retracted into the street light, preventing environmental damage and greatly extending the device's service life.

[0056] In one embodiment, such as Figure 6 As shown, the lamp post 20 adopts a symmetrical cavity design, with an independent flag lifting mechanism installed in each cavity. The two cavities are arranged symmetrically with the central axis of the lamp post as the reference. This symmetrical dual-mechanism design can flexibly adapt to different specifications of smart street light poles and different sizes of flags, exhibiting strong compatibility and scalability.

[0057] This invention also provides a method for mounting and raising road flags for smart streetlights, using the aforementioned smart streetlight road flag mounting and raising device. The road flag raising process is as follows:

[0058] Upper column 7 unfolds: The second motor 5 rotates clockwise, driving the upper column 7 to rotate from the inside of the lamp post 20 to the outside. At this time, the lower column 6 is in contact with the upper column 7 and unfolds synchronously with the upper column 7.

[0059] Positioning of upper column 7: When the upper column 7 rotates to a horizontal position perpendicular to the lamp post 20, the second motor 5 triggers the limit switch at the baffle, and the second motor 5 stops rotating;

[0060] Road flag unfolding: The first motor 4 rotates counterclockwise, driving the rotating shaft core 9 to rotate synchronously. At the same time, the lower end column 6 slides down along the square steel guide rail 2 under the action of its own counterweight, and the road flag 23 gradually unfolds with the rotation of the rotating shaft core 9.

[0061] When the lower end post 6 slides to below the opening of the lamp post 20, its bottom contacts the spring 21 and gradually presses down. The spring 21 descends in the reserved slot of the lamp post 20, leaving space for the road flag 23 to extend.

[0062] The raising of the road flag is completed: After the lower post 6 slides to the bottom of the square steel guide rail 2, the limit switch at the lower baffle plate is triggered, the first motor 4 stops rotating, and the road flag 23 is fully extended.

[0063] The process of collecting street flags is as follows:

[0064] Road flag winding: The first motor 4 rotates clockwise, driving the shaft core 9 to rotate synchronously. The road flag 23 is gradually wound to the outside of the shaft core 9, while the lower end column 6 slides upward along the square steel guide rail 2.

[0065] During the upward sliding of the lower column 6, the spring 21 moves upward synchronously under the action of its own spring force;

[0066] Lower column 6 is fixed: When the lower column 6 slides to the position of the upper column 7, it connects with the upper column 7 to fix the lower column 6 and the upper column 7.

[0067] The second motor 5 rotates counterclockwise, causing the upper column 7 and the lower column 6 to rotate synchronously into the lamp post 20.

[0068] Once the flag collection is complete: after the upper post 7 and the lower post 6 are fully retracted into the cavity of the lamp post 20, the limit switch at the upper post is triggered, and the second motor 5 stops rotating; at this time, the upper post 7, the lower post 6 and the lamp post 20 fit together perfectly.

[0069] This invention adopts an integrated structural design of the smart street light body and the flag lifting mechanism. By setting a dedicated installation cavity inside the light pole, the efficient integration of the flag lifting mechanism and the street light body is achieved. The structure is reasonable and highly integrated, effectively solving the problems of space occupation and poor aesthetics that exist in the existing separate settings or simple stacking methods.

Claims

1. A smart street light flag-mounting and lifting device, comprising a light pole (20), characterized in that: The lamp post (20) has a cavity inside, and a square steel guide rail (2) and an aluminum alloy shell (1) are provided inside the cavity. The aluminum alloy shell (1) has an upper end post (7) and a lower end post (6). One end of the lower end post (6) is movably connected to the same end of the upper end post (7). The upper end post (6) has a rotating shaft (9) inside. The road flag is wound on the rotating shaft (9). The other end of the road flag is connected to the lower end post (6). One end of the rotating shaft (9) is connected to the output end of the first motor (4) through a rolling bearing (11), a coupling (8), and the rotating shaft (9). One end of the lower column (6) is provided with a round nut (13), which is set on the square steel rail (2). It also includes a second motor (5), which is fixed inside the aluminum alloy shell (1) and located on the same side as the square steel rail (2). The output shaft of the second motor (5) is connected to a small gear (12). The small gear (12) meshes with a large gear (16) fixed on the upper column shell (3). A shaft passes through the center of the large gear (16) and the upper column shell (3). The upper column shell (7) can rotate around the shaft.

2. The smart street light flag-mounting and lifting device as described in claim 1, characterized in that: The rotating shaft (9) is a three-section composite structure, including a head shaft section (91), a quick-release shaft section (92) and a tail shaft section (93) connected in sequence. The head shaft section (91) and the tail shaft section (93) are fixed ends, and the middle section is the quick-release shaft section (92) used to wind the flag (23). The quick-release shaft section (92) is meshed with the head shaft section (91) and the tail shaft section (93).

3. The smart street light flag-mounting and lifting device as described in claim 2, characterized in that: The round nut (13) is provided with a first deep groove ball bearing (17) that fits tightly against the round nut (13).

4. The smart street light banner mounting and lifting device as described in claim 3, characterized in that: Symmetrical bearing seats (18) are provided on both sides of the square steel guide rail (2). A second deep groove ball bearing (19) is provided on each bearing seat (18). A chamfer plate (14) is also provided on each bearing seat (18). The original opening formed by the two chamfer plates (14) is smaller than the diameter of the round nut (13).

5. The smart street light flag-mounting and lifting device as described in claim 4, characterized in that: The square steel guide rail (2) has guide grooves (15) on both sides.

6. The smart street light banner mounting and lifting device as described in claim 5, characterized in that: The lower end column (6) is a counterweight rod. When the flag is unfolded, the lower end column (6) slides down along the square steel guide rail (2) under the action of its own counterweight.

7. The smart street light flag-mounting and lifting device as described in claim 6, characterized in that: The cavity bottom is provided with a spring door groove (22), and a spring (21) is provided in the spring door groove (22). When the road flag (23) is in the storage state, the upper end of the spring (21) is connected to the bottom of the upper column shell (3), and the lower end is connected to the bottom of the spring door groove (22).

8. The smart street light flag-mounting and lifting device as described in claim 7, characterized in that: The upper column housing (3) is provided with a dustproof baffle (10) at its end.

9. The smart street light flag-mounting and lifting device as described in claim 8, characterized in that: The lamp post (20) adopts a symmetrical cavity, and each cavity is equipped with an independent flag lifting mechanism. The two cavities are arranged symmetrically with the central axis of the lamp post as the reference.

10. A method for mounting and raising banners for smart streetlights, employing the banner mounting and raising device for smart streetlights as described in claim 9, characterized in that: The process of raising the flag is as follows: The upper column (7) unfolds: The second motor (5) rotates clockwise, driving the upper column (7) to rotate from the inside of the lamp post (20) to the outside. At this time, the lower column (6) and the upper column (7) are in a close fit and unfold synchronously with the upper column (7). Positioning of the upper column (7): When the upper column (7) rotates to a horizontal position perpendicular to the lamp post (20), the second motor (5) triggers the limit switch at the baffle, and the second motor (5) stops rotating; Road flag unfolding: The first motor (4) rotates counterclockwise, driving the shaft core (9) to rotate synchronously. At the same time, the lower end column (6) slides down along the square steel guide rail (2) under the action of its own counterweight. The road flag (23) gradually unfolds with the rotation of the shaft core (9). When the lower end post (6) slides to the opening below the lamp post (20), its bottom contacts the spring (21) and gradually presses down. The spring (21) descends in the reserved groove of the lamp post (20), leaving space for the road flag (23) to stretch out. After the flag raising is completed: the lower column (6) slides to the bottom of the square steel guide rail (2), triggers the limit switch at the lower baffle plate, the first motor (4) stops rotating, and the flag (23) is fully extended; The process of collecting street flags is as follows: Road flag winding: The first motor (4) rotates clockwise, driving the shaft core (9) to rotate synchronously, and the road flag (23) is gradually wound to the outside of the shaft core (9), while driving the lower end column (6) to slide upward along the square steel guide rail (2); During the upward sliding of the lower column (6), the spring (21) moves upward synchronously under the action of its own spring force; Lower column (6) fixed: When the lower column (6) slides to the position of the upper column (7), it connects with the upper column (7) to fix the lower column (6) and the upper column (7); The second motor (5) rotates counterclockwise, driving the upper column (7) and the lower column (6) to rotate synchronously into the lamp post (20); Complete the flag collection: After the upper post (7) and lower post (6) are completely retracted into the cavity of the lamp post (20), the limit switch at the upper post is triggered, and the second motor (5) stops rotating; at this time, the upper post (7), lower post (6) and lamp post (20) fit together perfectly.

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