A lamp head liftable and rotatable street lamp

Abstract

This invention discloses a street light with a liftable and rotatable lamp head, comprising a main pole, a rotating mechanism, a hoisting mechanism, and a lamp head assembly. The rotating mechanism is located at the top of the main pole, and the lamp head assembly is located at the output end of the rotating mechanism. The rotating mechanism drives the lamp head assembly to rotate along the main pole. The liftable lamp head includes a housing, a male electrical connector, and a light source module. The male electrical connector is located at the top of the housing, and the male and female electrical connectors are mutually matched. The achieved technical effects are: through the linkage design of rotation and lifting, high-altitude work is transformed into ground work, fundamentally ensuring the safety of maintenance personnel and reducing the difficulty of the work; the liftable lamp head is in a power-off state when lowered, making the maintenance process safer; the entire lifting and rotating process is safe and convenient to operate, and maintenance personnel can complete the work without climbing.

Description

Technical Field

[0001] This invention relates to the field of road lighting technology, and more specifically to a street lamp with a lamp head that can be raised, lowered, and rotated. Background Technology

[0002] With the continuous advancement of urbanization, road lighting facilities have become an important infrastructure for ensuring traffic safety and enhancing the city's image. Currently, traditional streetlights typically use a fixed installation structure, where the lamp head is directly fixed to the top of the lamp post. While this structure is simple and reliable, it presents several problems during routine maintenance and troubleshooting:

[0003] 1. High maintenance costs: Maintenance personnel need to use aerial work platforms, lifting platforms or climbing tools to reach the light heads. Equipment rental and labor costs are high, and the preparation time is long, resulting in low maintenance efficiency.

[0004] 2. Significant safety hazards: During high-altitude operations, personnel face risks such as falls and electric shock. In busy traffic areas or complex terrain, work vehicles occupy road space, easily causing traffic congestion or secondary accidents, posing a safety threat to maintenance personnel and passing pedestrians and vehicles.

[0005] 3. Limited working environment: narrow streets, sidewalks, densely green areas, or special road sections such as bridges make it difficult for aerial work vehicles to enter or operate, resulting in maintenance work not being carried out in a timely manner and affecting the normal operation of the lighting system.

[0006] To address the aforementioned issues, some adjustable or retractable street light structures have been proposed in the existing technology. For example, hinged, folding, or wire rope structures are used to allow the lamp head to rotate downwards, or a limited degree of descent of the lamp head is achieved through a built-in lifting mechanism. However, existing lifting lamp head structures have drawbacks such as difficulty in positioning and docking, and the inability of the lamp head to rotate, making them inconvenient for practical operation.

[0007] Therefore, there is an urgent need for a street light with a stable structure, easy operation, and strong adaptability, so as to enable the lamp head to rotate horizontally over a wide range and be safely and reliably lowered to a near-ground position, allowing maintenance personnel to complete maintenance and lamp replacement work entirely on the ground, fundamentally solving the efficiency, safety, and cost problems caused by high-altitude operations. Summary of the Invention

[0008] Therefore, the present invention provides a street light with a lamp head that can be raised, lowered, and rotated to solve the above-mentioned problems in the prior art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] According to a first aspect of the present invention, a street light with a lamp head that can be raised, lowered, and rotated includes a main pole, a rotating mechanism, a winch mechanism, and a lamp head assembly. The rotating mechanism is disposed at the top end of the main pole, and the lamp head assembly is disposed at the output end of the rotating mechanism. The rotating mechanism is used to drive the lamp head assembly to rotate along the main pole.

[0011] The lamp head assembly includes a lampshade and a liftable lamp head. The lampshade has a receiving cavity with the opening facing downwards. The receiving cavity contains an electrical connector female and a cable. The connection end of the electrical connector female is facing downwards. The electrical connector female is electrically connected to one end of the cable, and the other end of the cable extends along the length of the main rod to its bottom end.

[0012] The liftable lamp head includes a housing, an electrical connector male connector, and a light source module. The electrical connector male connector is located on the top of the housing, with the connecting end of the electrical connector male connector facing upwards, and the electrical connector male connector is matched with the electrical connector female connector. The light source module is detachably located at the bottom of the housing, and the light source module is electrically connected to the electrical connector male connector.

[0013] The winch mechanism includes a winch and a wire rope. The lampshade is provided with a plurality of first guide wheels, which are arranged sequentially along the length of the lampshade. The housing is provided with at least two second guide wheels, which are arranged sequentially along the length of the housing. The winch is located inside the bottom end of the main rod. One end of the wire rope is fixed inside the lampshade, and the other end of the wire rope passes sequentially around the second guide wheels and the first guide wheels before extending to the bottom end of the main rod and winding around the drum of the winch.

[0014] Furthermore, a sleeve is provided inside the receiving cavity, the opening of the sleeve is facing downwards, and the opening of the sleeve is a flared mouth;

[0015] The top of the housing is provided with a guide post, the top of the guide post is set upward, the guide post is coaxially arranged with the sleeve, and the guide post and the sleeve are matched with each other.

[0016] Furthermore, it also includes an electromagnetic lock, which is disposed on the outer side wall of the sleeve and electrically connected to the cable. The side wall of the sleeve is provided with a lock hole, and the lock head of the electromagnetic lock can extend into the sleeve through the lock hole. The guide post is provided with an annular lock groove, which matches the lock head.

[0017] Furthermore, it also includes a manual crank handle and an electric power-assisted tool, both of which are matched with the winch.

[0018] Furthermore, the rotating mechanism includes a secondary rod, a first motor, a slewing bearing, and a rotating rod. The bottom end of the secondary rod is connected to the main rod, and the slewing bearing is disposed at the top end of the secondary rod, with the top end of the secondary rod connected to the inner ring of the slewing bearing.

[0019] The bottom end of the rotating rod is connected to the outer ring of the rotary bearing, and the output end of the first motor is connected to the outer ring of the rotary bearing via a transmission connection.

[0020] The lampshade is provided with a connecting rod, which is connected to the rotating rod, and the connecting rod and the rotating rod are coaxially arranged.

[0021] Furthermore, the rotating mechanism also includes an inner ring flange, an outer ring flange, and a protective cover. The inner ring flange is disposed between the outer ring of the slewing bearing and the auxiliary rod, and the inner ring flange is disposed between the rotating rod and the inner ring of the slewing bearing.

[0022] The first motor is mounted on the outer ring flange, and the output end of the first motor is provided with a drive gear, which meshes with the outer ring of the slewing bearing.

[0023] The protective cover is installed over the slewing bearing.

[0024] Furthermore, it also includes a control panel and security equipment, wherein the control panel is disposed inside the bottom end of the main pole and is electrically connected to the first motor and the electromagnetic lock;

[0025] The bottom of the housing is provided with an equipment compartment, in which the security equipment is detachably installed, and the security equipment is electrically connected to the male connector of the electrical connector.

[0026] Furthermore, the housing is provided with two second guide wheels, each of which is mounted on a bracket. The bottom end of the bracket is connected to the housing, and the bracket has multiple guide wheel mounting positions along its height direction.

[0027] Furthermore, the main rod is hollow, and a bottom box is provided at the bottom end of the main rod. The bottom box is provided with a door, which is openable and closable. The winch and the control panel are both located inside the bottom box. A base is provided at the bottom of the bottom box, and the base is provided with multiple mounting holes.

[0028] Furthermore, it also includes a crossbar, one end of which is connected to the main rod, and the crossbar is perpendicular to the main rod.

[0029] This invention has the following advantages: The combination of a hoisting mechanism and a rotating mechanism enables the lamp head to be raised and rotated. The lamp head can be rotated to an easily operable area before being raised or lowered. The linkage design of rotation and raising transforms high-altitude work into ground-based work, fundamentally ensuring the safety of maintenance personnel and reducing the difficulty of the operation. The cooperation between the guide column and the sleeve, as well as the docking design of the electrical connector, facilitates precise docking. Furthermore, the lamp head is in a power-off state after being lowered, making the maintenance process safer. The entire raising and rotating process is safe and convenient to operate, allowing maintenance personnel to complete the work without climbing. Attached Figure Description

[0030] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0031] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should fall within the scope of the technical content disclosed in the present invention.

[0032] Figure 1 This is a schematic diagram illustrating different usage states of a street light with a liftable and rotatable lamp head, provided for some embodiments of the present invention.

[0033] Figure 2 This is a schematic diagram of the overall structure of a lamp head assembly for a street lamp with a lamp head that can be raised, lowered, and rotated, according to some embodiments of the present invention.

[0034] Figure 3 This is a schematic diagram of the rotating drive mechanism for a street lamp with a liftable and rotatable lamp head, provided for some embodiments of the present invention.

[0035] Figure 4 This is a first-view view of a lifting drive mechanism for a street light with a liftable and rotatable lamp head, provided for some embodiments of the present invention.

[0036] Figure 5 This is a second-view perspective view of a lifting drive mechanism for a street lamp with a liftable and rotatable lamp head, provided for some embodiments of the present invention.

[0037] Figure 6The image provided is an isometric view of a liftable lamp head for a street lamp with a liftable and rotatable lamp head, according to some embodiments of the present invention.

[0038] Figure 7 The image shows a front view of a liftable lamp head for a street lamp with a liftable and rotatable lamp head, as provided in some embodiments of the present invention.

[0039] Figure 8 The image shows a left view of a retractable lamp head for a street lamp with a retractable and rotatable lamp head, as provided in some embodiments of the present invention.

[0040] Figure 9 The image shows a top view of a street lamp with a liftable and rotatable lamp head, provided for some embodiments of the present invention.

[0041] In the diagram: 1. Lampshade, 2. Electromagnetic lock, 3. Sleeve, 4. Female electrical connector, 5. Steel wire rope, 6. First guide wheel, 7. Cable, 8. Housing, 9. Second guide wheel, 10. Guide column, 11. Male electrical connector, 12. Security equipment, 13. Light source module, 14. Equipment compartment, 15. First motor, 16. Drive gear, 17. Slewing bearing, 18. Inner flange, 19. Outer flange, 20. Protective cover, 21. Rotating rod, 22. Base box, 23. Hoisting mechanism, 24. Manual crank, 25. Electric power tool, 26. Base, 27. Control panel, 28. Crossbar, 29. Liftable lamp head, 30. Main pole, 31. Secondary pole. Detailed Implementation

[0042] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example 1

[0044] like Figures 1 to 9 As shown, a street light with a liftable and rotatable lamp head according to a first aspect embodiment of the present invention includes a main pole 30, a rotating mechanism, a winch mechanism 23, and a lamp head assembly. The rotating mechanism is located at the top of the main pole 30, and the lamp head assembly is located at the output end of the rotating mechanism. The rotating mechanism is used to drive the lamp head assembly to rotate along the main pole 30. The rotating mechanism can drive the lamp head assembly to rotate ±180° along the main pole 30, so that the lamp head can be rotated to a safe area such as a sidewalk or green belt that is easy to operate and maintain before lifting and lowering operations are performed, which greatly improves the convenience and safety of maintenance operations.

[0045] The lamp head assembly includes a lamp cover 1 and a liftable lamp head 29. The lamp cover 1 has a receiving cavity with the opening facing downward. The receiving cavity has an electrical connector female connector 4 and a cable 7. The connection end of the electrical connector female connector 4 is facing downward. The electrical connector female connector 4 is electrically connected to one end of the cable 7. The cable 7 is laid along the internal cavity of the main rod 30, and the other end of the cable 7 extends along the length of the main rod 30 to its bottom end.

[0046] The liftable lamp head 29 includes a housing 8, an electrical connector male connector 11, and a light source module 13. The electrical connector male connector 11 is located on the top of the housing 8, with its connecting end facing upwards. The electrical connector male connector 11 and the electrical connector female connector 4 are mutually matched. After the electrical connector male connector 11 and the electrical connector female connector 4 are connected, power can be supplied and data can be transmitted. The light source module 13 is detachably located at the bottom of the housing 8 and is electrically connected to the electrical connector male connector 11. Specifically, the light source module 13 uses a high-efficiency LED lamp and is designed as a pluggable module for easy and quick replacement. The edges of the housing 8 are designed with a beveled and curved surface for easy guidance and positioning.

[0047] The winch mechanism 23 is the core component that drives the lifting lamp head 29 to rise and fall. The winch mechanism 23 includes a winch and a wire rope 5. The lamp cover 1 is provided with multiple first guide wheels 6, which are arranged sequentially along the length of the lamp cover 1 to change the direction of the wire rope 5. The housing 8 is provided with at least two second guide wheels 9, which are arranged sequentially along the length of the housing 8. The winch is located inside the bottom of the main rod 30. One end of the wire rope 5 is fixed inside the lamp cover 1, and the other end of the wire rope 5 extends to the bottom of the main rod 30 after passing through the second guide wheels 9 and the first guide wheels 6 in sequence, and is wound on the drum of the winch. By controlling the forward and reverse rotation of the drum, the wire rope can be wound up and down, thereby realizing the lowering and raising of the lifting lamp head 29.

[0048] In this embodiment, it should be noted that the winch mechanism 23 is equipped with dual operating modes: including a manual crank 24 that can be directly connected to the winch shaft, and an electric drill interface that can provide electric assistance, which can be driven by an electric tool 25 (such as an electric drill); the winch itself has a mechanical anti-slip function to ensure that it can automatically lock when stopped at any position to prevent the lamp head from falling accidentally. This design takes into account the convenience of manual operation in the event of no power or emergency, as well as the work efficiency during daily maintenance.

[0049] Furthermore, the housing 8 is provided with two second guide wheels 9, each of which is mounted on a bracket. The bottom end of the bracket is connected to the housing 8, and the bracket has multiple guide wheel mounting positions along its height direction. Specifically, the bracket has three guide wheel mounting positions along its height direction, and the heights of the three guide wheel mounting positions from the housing 8 are 50mm, 100mm, and 150mm, respectively. During use, the height difference between the two second guide wheels 9 can be adjusted by installing the second guide wheels 9 in different guide wheel mounting positions, thereby fine-tuning the tilt angle of the liftable lamp head 29 after it is raised to the top and locked. The adjustment range can reach 0-15°. This design allows the same street light to adapt to the requirements of different road widths and illumination angles through simple adjustments, making it highly versatile.

[0050] It also includes a crossbar 28, one end of which is connected to the main pole 30 and is perpendicular to the main pole 30. The crossbar 28 is used to integrate and install other municipal facilities such as traffic lights, surveillance cameras, environmental monitoring sensors, public broadcast speakers or wireless communication base stations, to achieve "multiple poles in one" and optimize the use of urban space.

[0051] The technical effects achieved in this embodiment are as follows: The combination of the hoisting mechanism and the rotating mechanism enables the lamp head to be raised and rotated. The lamp head can be rotated to an easily operable area before being raised or lowered. The linkage design of rotation and raising transforms high-altitude work into ground-based work, fundamentally ensuring the safety of maintenance personnel and reducing the difficulty of the operation. The cooperation between the guide column and the sleeve, as well as the docking design of the electrical connector, facilitates precise docking. Furthermore, the lamp head 29 is in a power-off state when lowered, making the maintenance process safer. The entire raising and rotating process is safe and convenient to operate, allowing maintenance personnel to complete the work without climbing. The angle of the lamp head 29 is adjustable, enhancing the applicability and lighting effect of the lamp. Both manual and electric operation modes can be selected to control the raising and lowering, improving the flexibility and reliability of use.

[0052] Example 2

[0053] like Figures 1 to 9 As shown in the figure, this embodiment provides another street light with a liftable and rotatable lamp head, whose structure includes all the contents of embodiment 1. Only the different parts are described below.

[0054] In this embodiment, a sleeve 3 is provided inside the receiving cavity. The opening of the sleeve 3 faces downward and is a flared opening to facilitate guiding docking.

[0055] The top of the housing 8 is provided with a guide post 10, with the top of the guide post 10 facing upward. The top of the guide post 10 is hemispherical or conical. The guide post 10 is coaxially arranged with the sleeve 3, and the guide post 10 and the sleeve 3 are matched with each other. When the liftable lamp head 29 rises, the guide post 10 first inserts into the flared mouth and is precisely aligned under the guidance of the inner wall of the sleeve 3, thereby ensuring that the male connector 11 and the female connector 4 of the electrical connector can achieve stress-free and highly reliable blind mating.

[0056] In this embodiment, it should be noted that, to ensure that the liftable lamp head 29 can resist shaking or loosening caused by external forces such as wind after being raised to the working position, an electromagnetic locking device is added in this embodiment. This device includes an electromagnetic lock 2 installed on the outer wall of the sleeve 3. The power supply and control lines of the electromagnetic lock 2 are integrated with the cable 7. A lock hole with a diameter of about 10mm is opened on the side wall of the sleeve 3. The lock head of the electromagnetic lock 2 can retract when energized and pop out when de-energized or when a power signal is received. Its stroke is about 15mm. At the corresponding height position of the guide post 10, a ring-shaped locking groove is machined. When the liftable lamp head 29 is raised to the top, the guide post 10 is fully inserted into the sleeve 3 and the electrical connector is connected, the control system gives the electromagnetic lock 2 a locking signal. The lock head pops out and embeds into the ring-shaped locking groove of the guide post 10, thereby realizing mechanical locking. At this time, the steel wire rope 5 is depressurized, and the electromagnetic lock 2 mainly bears the weight of the lamp head and external forces.

[0057] The technical effects achieved by this embodiment are as follows: the cooperation between the guide column and the sleeve realizes precise guidance and final positioning during the lifting process, which greatly improves the success rate and lifespan of electrical connectors; the electromagnetic mechanical lock provides strong locking force, which enables the lamp head to remain stable even in harsh weather conditions, thus improving the overall safety level; the wire rope is unloaded after locking, which also extends the service life of the winch mechanism and the wire rope.

[0058] Example 3

[0059] like Figures 1 to 9 As shown in the figure, this embodiment provides another street light with a liftable and rotatable lamp head, the structure of which includes all the contents of embodiment 2. Only the different parts are described below.

[0060] In this embodiment, the rotating mechanism includes a secondary rod 31, a first motor 15, a rotary bearing 17, and a rotating rod 21. The bottom end of the secondary rod 31 is connected to the main rod 30, and the rotary bearing 17 is disposed at the top end of the secondary rod 31, with the top end of the secondary rod 31 connected to the inner ring of the rotary bearing 17.

[0061] The bottom end of the rotating rod 21 is connected to the outer ring of the rotary bearing 17, and the output end of the first motor 15 is connected to the outer ring of the rotary bearing 17 for transmission. By controlling the forward and reverse rotation of the first motor 15, the outer ring of the rotary bearing and the rotating rod 21 and the lamp head assembly connected thereto can be driven to perform precise rotational movements.

[0062] The lampshade 1 is provided with a connecting rod, which is connected to the rotating rod 21, and the connecting rod and the rotating rod 21 are coaxially arranged.

[0063] In this embodiment, it should be noted that the rotating mechanism also includes an inner ring flange 18, an outer ring flange 19, and a protective cover 20. The inner ring flange 18 is disposed between the outer ring of the slewing bearing 17 and the auxiliary rod 31, and the inner ring flange 18 is disposed between the rotating rod 21 and the inner ring of the slewing bearing 17.

[0064] The first motor 15 is mounted on the outer ring flange 19. The output end of the first motor 15 is provided with a drive gear 16, which meshes with the outer ring of the rotary bearing 17.

[0065] The protective cover 20 is made of stainless steel and is fixed with a split clamp for easy disassembly and maintenance. The protective cover 20 can effectively prevent rainwater, dust, salt spray and other substances from corroding the rotary bearing and gears, ensuring the long-term reliable operation of the rotating mechanism in outdoor environments.

[0066] The technical effects achieved in this embodiment are as follows: the use of a slewing bearing as the core slewing support results in a compact structure, strong load-bearing capacity, and smooth rotation; the gear transmission method transmits large torque and provides accurate positioning; and the comprehensive protective design significantly improves the environmental adaptability and maintenance-free cycle of the rotating mechanism.

[0067] Example 4

[0068] like Figures 1 to 9 As shown in the figure, another street light with a liftable and rotatable lamp head provided in this embodiment has the same structure as in embodiment 3. Only the different parts are described below.

[0069] In this embodiment, a control panel 27 and a security device 12 are also included. The control panel 27 is located inside the bottom end of the main rod 30. The control panel 27 is electrically connected to the first motor 15 of the rotating mechanism, the electromagnetic lock 2, the motor or sensor of the hoisting mechanism 23, and possible environmental monitoring units via a cable 7.

[0070] The bottom of the housing 8 has an equipment compartment 14, which contains standardized installation interfaces and power and data interfaces. It connects to the male electrical connector 11, allowing for the convenient installation of various security devices 12, such as: high-definition network cameras (for security monitoring or traffic flow monitoring), environmental sensors (monitoring PM2.5, noise, temperature and humidity, etc.), public address speakers, wireless APs (Wi-Fi coverage), etc. These devices automatically power on and connect to the network after the light head is raised, becoming an important node in the smart city's sensing network.

[0071] In this embodiment, it should be noted that the main pole 30 is hollow, and a base box 22 is provided at the bottom end of the main pole 30. The base box 22 is provided with a lockable door. The winch and control panel 27 are both located inside the base box 22. The door is a hinged door that can be opened and closed for easy maintenance and operation. The bottom of the base box 22 is provided with a base 26, which has multiple mounting holes for fixing the entire street light with anchor bolts. The design of the base box 22 facilitates the storage of the winch mechanism and related control components, protects the equipment, and improves the appearance.

[0072] The working principle of the entire street light is as follows: When it is necessary to replace the light source module 13 or the security equipment 12, the entire lamp head is first rotated to a suitable direction (such as above the sidewalk or above the green belt) by the rotating mechanism. Then, the electromagnetic lock 2 is opened and the lock is released. At the same time, the winch releases the wire rope 5. Under its own gravity, the male connector 11 of the electrical connector 29 is disconnected from the female connector 4 of the electrical connector. At the same time, the lamp head 29 slowly descends until it is at a position where maintenance personnel can stand on the ground to operate. The winch stops releasing the wire rope 5, and maintenance personnel can stand on the ground to carry out on-site maintenance and replacement work. During the maintenance process, the lamp head is in a power-off state, which is safer.

[0073] After the maintenance and replacement work is completed, the winch is used to wind up the steel wire rope 5, and the entire liftable lamp head can gradually rise under the traction of the steel wire rope 5. When it rises to the highest point, the male connector 11 of the electrical connector and the female connector 4 of the electrical connector are connected to complete the power supply and signal connection to the light source module 13 and the security equipment 12. At the same time, the electromagnetic lock 2 is locked, the steel wire 5 is unloaded, and the liftable lamp head 29 is locked and fixed by the electromagnetic lock. Finally, the rotating mechanism drives the entire lamp head to rotate and reset, thus completing the entire maintenance operation.

[0074] The technical effects achieved by this embodiment are as follows: by integrating an intelligent control panel, the street light lifting, rotating, locking, and status monitoring are automated and intelligently managed, and can be connected to an IoT platform to achieve remote control and maintenance; the design of the multi-functional equipment compartment greatly expands the added value of street lights as urban infrastructure and helps the construction of smart cities; it has a complete, safe, and convenient "ground-based" maintenance process, which can significantly reduce maintenance costs, safety risks, and traffic impact.

[0075] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0076] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

Claims

1. A street light with a liftable and rotatable lamp head, characterized in that, It includes a main pole (30), a rotating mechanism, a hoisting mechanism (23), and a lamp head assembly. The rotating mechanism is located at the top of the main pole (30), and the lamp head assembly is located at the output end of the rotating mechanism. The rotating mechanism is used to drive the lamp head assembly to rotate along the main pole (30). The lamp head assembly includes a lamp cover (1) and a liftable lamp head (29). The lamp cover (1) has a receiving cavity with the opening facing downwards. The receiving cavity is provided with an electrical connector female connector (4) and a cable (7). The connection end of the electrical connector female connector (4) faces downwards. The electrical connector female connector (4) is electrically connected to one end of the cable (7). The other end of the cable (7) extends along the length of the main rod (30) to its bottom end. The liftable lamp head (29) includes a housing (8), an electrical connector male connector (11), and a light source module (13). The electrical connector male connector (11) is located on the top of the housing (8), with the connecting end of the electrical connector male connector (11) facing upwards, and the electrical connector male connector (11) is matched with the electrical connector female connector (4). The light source module (13) is detachably located at the bottom of the housing (8), and the light source module (13) is electrically connected to the electrical connector male connector (11). The winch mechanism (23) includes a winch and a wire rope (5). The lampshade (1) is provided with a plurality of first guide wheels (6), which are arranged sequentially along the length of the lampshade (1). The housing (8) is provided with at least two second guide wheels (9), which are arranged sequentially along the length of the housing (8). The winch is located inside the bottom of the main rod (30). One end of the wire rope (5) is fixed inside the lampshade (1), and the other end of the wire rope (5) extends to the bottom of the main rod (30) after passing around the second guide wheel (9) and the first guide wheel (6) in sequence, and is wound around the drum of the winch.

2. A street light with a liftable and rotatable lamp head according to claim 1, characterized in that, The cavity is provided with a sleeve (3), the opening of the sleeve (3) is facing downwards, and the opening of the sleeve (3) is a flared mouth; The top of the housing (8) is provided with a guide post (10), the top of the guide post (10) is set upward, the guide post (10) is coaxially set with the sleeve (3), and the guide post (10) and the sleeve (3) are matched with each other.

3. A street light with a liftable and rotatable lamp head according to claim 2, characterized in that, It also includes an electromagnetic lock (2), which is disposed on the outer side wall of the sleeve (3). The electromagnetic lock (2) is electrically connected to the cable (7). The side wall of the sleeve (3) is provided with a lock hole. The lock head of the electromagnetic lock (2) can extend into the sleeve (3) along the lock hole. The guide post (10) is provided with an annular lock groove, which matches the lock head.

4. A street light with a liftable and rotatable lamp head according to claim 1, characterized in that, It also includes a manual crank (24) and an electric power-assisted tool (25), both of which are matched with the winch.

5. A street light with a liftable and rotatable lamp head according to claim 3, characterized in that, The rotating mechanism includes a secondary rod (31), a first motor (15), a rotary bearing (17), and a rotating rod (21). The bottom end of the secondary rod (31) is connected to the main rod (30), and the rotary bearing (17) is located at the top end of the secondary rod (31), and the top end of the secondary rod (31) is connected to the inner ring of the rotary bearing (17). The bottom end of the rotating rod (21) is connected to the outer ring of the rotary bearing (17), and the output end of the first motor (15) is connected to the outer ring of the rotary bearing (17) in a transmission connection. The lampshade (1) is provided with a connecting rod, which is connected to the rotating rod (21), and the connecting rod and the rotating rod (21) are coaxially arranged.

6. A street light with a liftable and rotatable lamp head according to claim 5, characterized in that, The rotating mechanism also includes an inner ring flange (18), an outer ring flange (19), and a protective cover (20). The inner ring flange (18) is disposed between the outer ring of the slewing bearing (17) and the auxiliary rod (31), and the inner ring flange (18) is disposed between the rotating rod (21) and the inner ring of the slewing bearing (17). The first motor (15) is mounted on the outer ring flange (19), and the output end of the first motor (15) is provided with a drive gear (16), which meshes with the outer ring of the slewing bearing (17); The protective cover (20) is placed over the slewing bearing (17).

7. A street light with a liftable and rotatable lamp head according to claim 5, characterized in that, It also includes a control panel (27) and a security device (12), wherein the control panel (27) is located inside the bottom end of the main rod (30), and the control panel (27) is electrically connected to the first motor (15) and the electromagnetic lock (2); The bottom of the housing (8) is provided with an equipment compartment (14), the security equipment (12) is detachably installed in the equipment compartment (14), and the security equipment (12) is electrically connected to the male connector (11) of the electrical connector.

8. A street light with a liftable and rotatable lamp head according to claim 1, characterized in that, The housing (8) is provided with two second guide wheels (9), each of which is mounted on a bracket. The bottom end of the bracket is connected to the housing (8), and the bracket is provided with multiple guide wheel mounting positions along its height direction.

9. A street light with a liftable and rotatable lamp head according to claim 7, characterized in that, The main rod (30) is hollow, and a bottom box (22) is provided at the bottom end of the main rod (30). The bottom box (22) is provided with a door, which is openable and closable. The winch and the control panel (27) are both located inside the bottom box (22). The bottom of the bottom box (22) is provided with a base (26), and the base (26) is provided with multiple mounting holes.

10. A street light with a liftable and rotatable lamp head according to claim 1, characterized in that, It also includes a crossbar (28), one end of which is connected to the main rod (30), and the crossbar (28) is perpendicular to the main rod (30).

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