A lifting lighting device

Abstract

The utility model provides a kind of lifting lighting device;It relates to lighting equipment field, to the problem of poor flexibility of current lamp lifting structure installation and maintenance, winch and flexible cable, fixed pulley composition lifting drive system: when needing maintenance or replacing lamp, by rocking handle rotation reel, release flexible cable, sliding carriage is under gravity along square steel pipe slide, drive lighting lamp to drop to the height of easy operation;After maintenance is completed, reverse rocking handle tightens flexible cable, sliding carriage rises along square steel pipe and resets, adopt square steel pipe as sliding track, sliding carriage directly with square steel pipe sliding fit, replace existing complex mouth shape support and sliding assembly, reduce the number of parts and cooperation precision requirement, reduce installation and maintenance difficulty, in addition, flexible cable passes from square steel pipe inside, avoid external winding or interference, improve the stability and flexibility of device operation.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment, and in particular to a lifting lighting device. Background Technology

[0002] In order to avoid the workspace, the lighting fixtures in the workshop are mostly placed in high positions, and it is inconvenient to build scaffolding below some of the installed light fixtures, which makes it impossible to repair them. The cost of repairing the light fixtures is high, and each replacement requires a lift or scaffolding, as well as additional auxiliary personnel. Working at heights poses a high safety risk, and the maintenance efficiency is low.

[0003] Although the lamps are raised and lowered using a mouth-shaped bracket, sliding components, and a hand-cranked winch, the bracket structure is relatively complex, the sliding components require high precision in their fit with the track, and the overall installation and maintenance flexibility needs improvement. Furthermore, the fixed connection between the carriage and the lamps makes it difficult to adjust the lamp angle according to actual lighting needs, limiting its adaptability. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a lifting lighting device that uses a square steel tube as a sliding track. The slide directly slides with the square steel tube, replacing the existing complex mouth-shaped bracket and sliding components. This reduces the number of parts and the precision requirements for fitting, and lowers the difficulty of installation and maintenance.

[0005] To achieve the above objectives, the following technical solution is adopted: A lifting lighting device, comprising: A square steel tube with open ends is fitted with a slide frame on the outside. The slide frame slides with the square steel tube and can move along the axial direction of the square steel tube. A perforated lug is provided on one side of the slide frame, and a fixed pulley is installed on the top of the square steel tube. The lighting fixture is connected to a lamp holder, which is rotatably mounted on a perforated lug plate via a pin. The lighting fixture is connected to a power source via a wire. The winch includes a crank and a drum. The crank drives the drum to rotate. A flexible cable is wound on the drum. One end of the flexible cable passes through the inside of the square steel tube and is connected to the carriage after cooperating with a fixed pulley. Under the drive of the crank, the carriage and the lighting lamp are raised and lowered along the square steel tube.

[0006] Furthermore, the slide includes a sliding frame and a guide wheel. The sliding frame is provided with a through groove, and the guide wheel is installed on the inner side wall of the through groove. A sliding channel for the square steel pipe to pass through is formed between the bottom surface of the through groove and the guide wheel, and the guide wheel abuts against the side wall of the square steel pipe.

[0007] Furthermore, the guide wheels are provided in two sets, one set is installed on one inner side wall of the through groove, and the other set is installed on the other inner side wall of the through groove, each set including at least two spaced guide wheels.

[0008] Furthermore, the guide wheel rotates around its axle, which is mounted on the sliding frame, and the outer circumferential surface of the guide wheel abutting against the side wall of the square steel tube is covered with an elastic layer.

[0009] Furthermore, the carriage is provided with two perforated lugs spaced apart, and the lamp holder is rotatably engaged with the two perforated lugs by pins, with the pins engaged with the two perforated lugs being coaxially distributed.

[0010] Furthermore, the pin is a screw, which is fitted with a wing nut. The wing nut is tightened or loosened in conjunction with the screw to maintain or adjust the orientation of the lighting lamp.

[0011] Furthermore, the fixed pulley is mounted on the top of the square steel tube via a wheel frame, and the fixed pulley rotates around its axle, which is mounted on the wheel frame.

[0012] Furthermore, a recessed groove is formed on the outer circumference of the fixed pulley to accommodate the flexible cable.

[0013] Furthermore, the winch is equipped with a bracket, and the drum and the crank are rotatably mounted on the bracket, with the crank and the drum being driven by a pair of gears.

[0014] Furthermore, a pawl is also installed on the bracket, which, together with the gear, forms a ratchet-pawl mechanism, and the pawl can constrain the gear to rotate in one direction.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are: To address the current issue of poor installation and maintenance flexibility in lighting fixture lifting structures, a lifting drive system is constructed, consisting of a winch, flexible cable, and fixed pulleys. When maintenance or replacement of a lighting fixture is required, the drum is turned by cranking a handle, releasing the flexible cable. The carriage slides down the square steel tube under gravity, lowering the lighting fixture to a convenient operating height. After maintenance, the handle is turned in the opposite direction to tighten the flexible cable, causing the carriage to rise back up along the square steel tube. Using the square steel tube as a sliding track, the carriage slides directly against it, replacing the existing complex U-shaped brackets and sliding components. This reduces the number of parts and the precision requirements for fit, lowering the difficulty of installation and maintenance. Furthermore, the flexible cable passes through the inside of the square steel tube, avoiding external entanglement or interference, thus improving the stability and flexibility of the device's operation.

[0016] The lamp holder is rotatably connected to the perforated lug of the carriage via a pin, allowing the lighting fixture to be freely adjusted around the pin, such as for pitch. Depending on the lighting needs of different areas in the workshop, such as workbenches and equipment corners, the lamp angle can be adjusted directly on the ground or at a low position without disassembly or complex operations, significantly improving the device's adaptability to different lighting scenarios. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a schematic diagram of the lifting lighting device in an embodiment of this utility model.

[0019] Figure 2 This is a schematic diagram of the slide frame and square steel tube in an embodiment of this utility model.

[0020] Figure 3 This is a schematic diagram of the guide wheel on the carriage abutting against the square steel pipe in an embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram showing the relative positions of the square steel pipe and the lighting lamp in an embodiment of this utility model.

[0022] In the diagram, 1. winch; 2. flexible cable; 3. square steel pipe; 4. carriage; 5. hanger; 6. fixed pulley; 7. lighting lamp; 8. wheel groove; 9. guide wheel; 10. lamp holder; 11. pin; 12. perforated ear plate. Detailed Implementation

[0023] In a typical embodiment of this utility model, such as Figures 1-4 As shown, a lifting lighting device is proposed.

[0024] Existing workshop lighting fixtures are located at high elevations, requiring scaffolding or elevators and auxiliary personnel for maintenance, resulting in high costs per maintenance. In some locations, space constraints prevent the construction of scaffolding, making fixture repairs difficult. Existing lifting structures are complex, require high precision, and lack flexibility in installation and maintenance. Furthermore, the connection between the fixture and the slide 4 is fixed, making angle adjustment impossible to accommodate different lighting needs. Therefore, this embodiment provides a lifting lighting device that uses a square steel tube 3 as a sliding rail. The slide 4 directly slides with the square steel tube 3, replacing the existing complex spherical bracket and sliding components. This reduces the number of parts and the precision requirements, lowering installation and maintenance difficulty. Simultaneously, the lighting lamp 7, through the lamp holder 10 and the slide 4, allows for orientation adjustment relative to the slide 4, meeting adaptability requirements.

[0025] like Figures 1-4 As shown, the core structure of the lifting lighting device includes a square steel pipe 3, a lighting lamp 7, and a winch 1.

[0026] The square steel tube 3 is open at both ends and is fitted with a slide 4 that can slide along its axial direction. The slide 4 has a perforated ear plate 12 on one side. A fixed pulley 6 is installed on the top to guide the flexible cable 2. The square steel tube 3 serves as the core support and sliding track, replacing the complex orifice-shaped support, simplifying the structure and reducing the precision requirements for fit.

[0027] The lighting lamp 7 is connected to the lamp holder 10, which is rotatably mounted on the perforated lug 12 of the slide 4 via a pin 11, allowing for angle adjustment by rotating around the pin 11. The lighting lamp 7 is connected to the power supply via wires to ensure power supply stability. In this embodiment, the power supply is configured based on the workshop lighting requirements, device structural characteristics, and safety regulations.

[0028] For power supply compatibility, prioritize existing industrial AC power supplies in the workshop (such as AC220V), eliminating the need for a dedicated power supply and reducing modification costs. If the workshop has safety voltage requirements (such as in a humid environment), a transformer can be used to convert it to AC36V for safety, avoiding the risk of electric shock caused by exposed wires.

[0029] The wiring for the lighting lamp 7 needs to be flexible and extendable as the carriage 4 rises and falls. A wear-resistant and bend-resistant flexible cable can be used, running along the outside of the square steel pipe 3, separated from the flexible cable 2 to avoid tangling. The end should be connected to a power socket or directly to the workshop power supply line, with sufficient length provided as redundancy during the lifting and lowering of the lighting lamp 7 to ensure stable power supply and eliminate the risk of wire breakage due to pulling. Alternatively, a battery can be used, integrating the power supply and lighting lamp 7 into a single structure, allowing for periodic charging when not in use.

[0030] The power supply terminal must be equipped with a leakage current protection device and an overload protection device to prevent safety accidents caused by short circuits in the lamps or aging of the wiring; the connection between the wires and the carriage 4 and lamp holder 10 must be insulated, such as by adding an insulating sleeve, to prevent the metal parts from conducting electricity.

[0031] like Figure 1 and Figure 2 As shown, the winch 1 consists of a crank and a drum. The crank drives the drum to rotate. One end of the flexible cable 2 wound on the drum passes through the inside of the square steel pipe 3, is guided by the fixed pulley 6, and is connected to the carriage 4. The lifting and lowering of the carriage 4 and the lighting lamp 7 are realized by operating the crank.

[0032] The winch 1, flexible cable 2, and fixed pulley 6 form a lifting drive system. When maintenance or replacement of the lights is required, the drum is turned by cranking the handle to release the flexible cable 2. The carriage 4 slides down the square steel pipe 3 under gravity, lowering the lighting fixture 7 to a height suitable for operation, without the need for a lifting vehicle or scaffolding. After maintenance is completed, the handle is turned in the opposite direction to tighten the flexible cable 2, and the carriage 4 rises back up along the square steel pipe 3. No additional auxiliary equipment or personnel are required, reducing the cost of each maintenance operation, avoiding working at heights, fundamentally eliminating safety risks, and simplifying the process while improving maintenance efficiency.

[0033] like Figure 1 , Figure 4As shown, square steel tube 3 is used as the sliding track, and the slide 4 directly slides with the square steel tube 3, replacing the existing complex orifice-shaped support and sliding components. This reduces the number of parts and the precision requirements for fit, and lowers the difficulty of installation and maintenance. In addition, the flexible cable 2 passes through the inside of the square steel tube 3, avoiding external entanglement or interference, further improving the stability and flexibility of the device operation.

[0034] The lamp holder 10 is rotatably connected to the perforated lug 12 of the carriage 4 via a pin 11, allowing the lighting lamp 7 to be freely adjusted around the pin 11, such as the pitch angle. According to the lighting needs of different areas of the workshop, such as workbenches and equipment corners, the lamp angle can be adjusted directly on the ground or at a low position without disassembly or complicated operations, significantly improving the adaptability of the device to different lighting scenarios.

[0035] The slide 4 includes a sliding frame and a guide wheel 9. The sliding frame is provided with a through groove, and the guide wheel 9 is installed on the inner side wall of the through groove. A sliding channel for the square steel pipe 3 to pass through is formed between the bottom surface of the through groove and the guide wheel 9, and the guide wheel 9 abuts against the side wall of the square steel pipe 3.

[0036] The guide wheels 9 are provided in two sets. One set is installed on one inner side wall of the through groove, and the other set is installed on the other inner side wall of the through groove. Each set includes at least two spaced guide wheels 9. The guide wheels 9 rotate around their axles, which are mounted on the sliding frame. The outer circumferential surface of the guide wheels 9 that abuts against the side wall of the square steel tube 3 is covered with an elastic layer.

[0037] like Figure 2 and Figure 3 As shown, the guide wheels 9 replace the sliding friction between the carriage 4 and the square steel tube 3 with rolling friction, reducing lifting resistance and making operation easier. Two sets of guide wheels 9 clamp the square steel tube 3 from both sides, and together with the bottom surface of the through groove, limit radial sway, solving the problem of offset during the lifting of the carriage 4. The elastic layer can be made of rubber, which can buffer vibration, avoid wear and noise from direct metal-to-metal contact, and enhance the fit between the guide wheels 9 and the square steel tube 3, improving sliding stability, making it particularly suitable for workshop vibration environments.

[0038] Angle adjustment design of double-hole ear plate 12 and pin 11 The carriage 4 is provided with two perforated lugs 12 spaced apart. The lamp holder 10 is rotatably engaged with the two perforated lugs 12 via pins 11. The pins 11 engaged with the two perforated lugs 12 are coaxially distributed. In this embodiment, the pins 11 are screws, which are engaged with wing nuts. The wing nuts are engaged with the screws to lock or loosen them, so as to maintain or adjust the orientation of the lighting lamp 7.

[0039] The double ear plate cooperates with the coaxial pin 11 to prevent the lamp holder 10 from tilting when rotating at a single fulcrum, ensuring smooth angle adjustment; the combination of screw and wing nut can be quickly locked or loosened. When adjusting the angle, loosen the wing nut, rotate the lamp holder 10 to the target orientation, and then tighten the wing nut to fix it. It can be operated without tools, which solves the problem that traditional fixed connections cannot easily adjust the angle, while ensuring the reliability of angle locking and preventing angle deviation caused by vibration during use.

[0040] The fixed pulley 6 is mounted on the top of the square steel tube 3 via a pulley frame. The fixed pulley 6 rotates around its axle. A recessed groove 8 is provided on the outer circumference of the fixed pulley 6 to accommodate the flexible cable 2. The flexible cable 2 can be made of steel wire rope or high-toughness synthetic fiber rope, such as polyester industrial filament rope.

[0041] The wheel groove 8 constrains the position of the flexible cable 2 to prevent the cable from slipping during lifting and avoids the slide 4 from tilting or getting stuck due to cable deviation; the wheel frame fixation ensures the stability of the fixed pulley 6 position, and in conjunction with the cable threading path inside the square steel pipe 3, the direction of force on the flexible cable 2 is consistent with the lifting direction of the slide 4, reducing additional friction and improving lifting efficiency.

[0042] like Figure 1 As shown, the winch 1 is equipped with a bracket, and the drum and the crank are rotatably mounted on the bracket. The crank and the drum are driven by a pair of gears. A pawl is also installed on the bracket. The pawl and the gears form a ratchet and pawl mechanism. The pawl can constrain the gear to rotate in one direction.

[0043] Gear transmission can amplify the torque of the crank handle. For example, the crank handle is connected to a small gear that drives the large gear connected to the drum, making the lifting operation more labor-saving, especially suitable for scenarios with heavy lamps. The ratchet and pawl mechanism restricts the gear to rotate in one direction, allowing only the drum to rewind the rope, preventing reverse rotation when the rope is loosened. When the crank handle is released, the pawl engages with the gear teeth, preventing the carriage 4 from sliding down by gravity, avoiding the safety risk of sudden fall during maintenance, and solving the unreliable problem of braking by the crank handle friction alone in the basic solution.

[0044] When rotating in the opposite direction, the pawl can be twisted so that the crank can rotate unidirectionally in the opposite direction. Specifically, the bidirectional lockable winch 1 in the prior art can be used.

[0045] The rolling engagement of guide wheels 9 and the cushioning of the elastic layer reduce jamming and wear on the carriage 4, extending the equipment's lifespan. The double-sided guide design eliminates radial offset, making lifting smoother. The combination of double ear plates and wing nuts enables tool-less quick adjustment, with a secure angle lock, adapting to diverse workshop lighting needs. Fixed pulleys 6 with grooves 8 prevent rope slippage, and ratchet and pawl prevent falls, mechanically eliminating safety hazards during lifting and improving operational safety. Gear transmission reduces the effort required to operate the crank handle, making it particularly suitable for frequent lifting scenarios; the overall structural optimization reduces potential failure points and lowers maintenance frequency.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lifting lighting device, characterized in that, include: A square steel tube with open ends is fitted with a slide frame on the outside. The slide frame slides with the square steel tube and can move along the axial direction of the square steel tube. A perforated lug is provided on one side of the slide frame, and a fixed pulley is installed on the top of the square steel tube. The slide includes a sliding frame and a guide wheel. The sliding frame is provided with a through groove, and the guide wheel is installed on the inner side wall of the through groove. A sliding channel for the square steel pipe to pass through is formed between the bottom surface of the through groove and the guide wheel, and the guide wheel abuts against the side wall of the square steel pipe. The lighting fixture is connected to a lamp holder, which is rotatably mounted on a perforated lug plate via a pin. The lighting fixture is connected to a power source via a wire. The winch includes a crank and a drum. The crank drives the drum to rotate. A flexible cable is wound on the drum. One end of the flexible cable passes through the inside of the square steel tube and is connected to the carriage after cooperating with the fixed pulley. Under the drive of the crank, the carriage and the lighting lamp are raised and lowered along the square steel tube. The flexible cable passes through the inside of the square steel tube to avoid external entanglement or interference; The winch is equipped with a bracket, and the drum and the crank are rotatably mounted on the bracket. The crank and the drum are driven by a pair of gears. The bracket is also equipped with a pawl, which works with the gear to form a ratchet-pawl mechanism. The pawl can constrain the gear to rotate in one direction.

2. The lifting lighting device as described in claim 1, characterized in that, The guide wheels are provided in two sets. One set is installed on one inner wall of the through groove, and the other set is installed on the other inner wall of the through groove. Each set includes at least two guide wheels that are spaced apart.

3. The lifting lighting device as described in claim 1, characterized in that, The guide wheel rotates around its axle, which is mounted on the sliding frame. The outer circumferential surface of the guide wheel that abuts against the side wall of the square steel tube is covered with an elastic layer.

4. The lifting lighting device as described in claim 1, characterized in that, The carriage is provided with two perforated lugs spaced apart. The lamp holder is rotatably engaged with the two perforated lugs by pins, and the pins engaged with the two perforated lugs are coaxially distributed.

5. The lifting lighting device as described in claim 1 or 4, characterized in that, The pin is a screw, which is fitted with a wing nut. The wing nut is used to tighten or loosen the screw to maintain or adjust the direction of the light.

6. The lifting lighting device as described in claim 1, characterized in that, The fixed pulley is mounted on the top of the square steel tube via a wheel frame. The fixed pulley rotates around its axle, which is mounted on the wheel frame.

7. The lifting lighting device as described in claim 1 or 6, characterized in that, The fixed pulley has a recessed groove on its outer circumference to accommodate the flexible cable.

Images