A lifting mechanism for a light

Abstract

The utility model relates to the field of lighting lamps and lanterns discloses a kind of traction mechanism of lifting light, including cover top, the cover top is detachably mounted in the top surface of lampshade, the inside of lampshade is fixed with installation box, the rear side of installation box is fixed with lamp cover, the inside of lamp cover is fixed with electric slip ring, the rear side of lamp cover is fixed with motor, the output shaft of motor is passed through lamp cover, and fixed with traction wheel, the outer wall of traction wheel is wound with power line.In the utility model, through the synergies of cover top, lampshade, installation box, cover bottom, lifting light power supply, bottom plate, lamp cover, electric slip ring, motor, traction wheel, power line, pulley and PCB, the lifting traction function of lifting light is realized, power line can not only provide required power supply for lifting light, but also can act as traction line, without separating traction line and power line for use, effectively simplify structure, reduce the number of components, reduce cost, while making the whole device more beautiful.

Description

Technical Field

[0001] This utility model relates to the technical field of lighting fixtures, specifically to a traction mechanism for lifting lamps. Background Technology

[0002] There are many types of lighting fixtures, including chandeliers, ceiling lights, table lamps, floor lamps, wall lamps, spotlights, and liftable lights. Lighting fixtures also come in a variety of colors, such as colorless, pure white, pink, light blue, light green, golden yellow, and milky white. When choosing lighting fixtures, don't just consider their appearance and price; also consider brightness. Brightness should be defined as light that is not glaring, has undergone safety treatment, and is clear and soft. Liftable lights require a traction mechanism to raise and lower.

[0003] The automatic lifting light disclosed in Chinese Patent Publication No. CN210662532U has the following technical features: it includes a housing, lifting lugs, a lifting frame, a lamp, a hook, a lifting ring, a cover, a waterproof connector, a capacitor, a switching power supply, a terminal block, a motor support, a drive motor, a winding wheel, a wire rope, a bearing seat, a spacer ring, a deep groove ball bearing, a socket base plate, a lamp tube, a limit switch bracket, a first micro switch, a pulley frame cover, a moving pulley assembly, a limit sleeve, a wire fixing buckle, and a double-through copper column. Lifting lugs are fixedly installed on both sides of the top of the housing.

[0004] In the above solution, the lifting of the lamp is achieved by using a winding wheel, steel wire rope, and hook, which leads to the following disadvantage: the lamp needs to be connected to an additional power cord due to the traction of the steel wire rope, and therefore needs to be used separately. Utility Model Content

[0005] The purpose of this invention is to provide a traction mechanism for a lifting light to solve the problem that the lifting light needs to be connected to an additional power cord due to the steel wire rope traction, and thus needs to be used separately.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a traction mechanism for a lifting lamp, including a top cover, the top cover being detachably mounted on the top surface of the lamp cover, a mounting box being fixed inside the lamp cover, the top cover being bolted to the mounting box, a bottom cover being fixed to the front side of the mounting box, a power supply for the lifting lamp being fixed to the front side of the bottom cover, a base plate being fixed inside the mounting box, a lamp cover being fixed to the rear side of the mounting box, an electric slip ring being fixed inside the lamp cover, a motor being fixed to the rear side of the lamp cover, the output shaft of the motor passing through the lamp cover and being fixed to a traction wheel, a power cord being wound around the outer wall of the traction wheel, a pulley being rotatably provided inside the mounting box, one end of the power cord passing around the pulley and passing through the base plate and the lamp cover in sequence, the other end of the power cord being fixedly connected to the electric slip ring, a PCB being fixed to the top surface of the base plate, the PCB being electrically connected to the motor, and a plurality of female seats being provided on the PCB.

[0007] Preferably, a small gear is fixed to the front side of the traction wheel, a first micro switch is fixed to the front side of the outer wall of the mounting box, the first micro switch is electrically connected to the PCB, and an internal gear is rotatably arranged between the mounting box and the bottom of the cover. The internal gear meshes with the small gear, and the outer wall of the internal gear has a protrusion.

[0008] Preferably, a mounting frame is fixed inside the base plate, and a limit wheel is rotatably provided inside the mounting frame, the limit wheel being in contact with the power cord.

[0009] Preferably, the PCB is provided with a second micro switch, which is electrically connected to the PCB.

[0010] Preferably, a limiting cylinder is fixed to the bottom surface of the base plate, and the power cord passes through the limiting cylinder.

[0011] Preferably, a pre-drilled hole is provided on the bottom front side of the cover.

[0012] Compared with the prior art, the traction mechanism for a lifting light that adopts the above technical solution has the following advantages:

[0013] Beneficial effects:

[0014] 1. In use, the lifting and traction function of the lamp is realized through the coordinated action of the top cover, lamp cover, mounting box, bottom cover, power supply of the lifting lamp, base plate, lamp cover, electric slip ring, motor, traction wheel, power cord, pulley and PCB. The power cord not only provides the power required for the lifting lamp, but also acts as the traction line. There is no need to use the traction line and the power cord separately, which effectively simplifies the structure, reduces the number of parts, reduces costs, and makes the whole device more beautiful.

[0015] Second, during use, precise control of the upper and lower limits is achieved, accurately controlling the lifting range of the lamp and preventing it from exceeding the safe operating range. This effectively protects the lamp and related components, extending the service life of the equipment. Because the limit wheel can rotate freely, friction between it and the power cord is reduced, making the power cord smoother during lifting and lowering, reducing wear caused by friction, and improving the service life of the power cord.

[0016] Thirdly, during use, upon receiving a signal, the PCB quickly controls the motor to stop rotating, thereby halting the movement of the power cord and the lifting light. This prevents more serious malfunctions caused by power cord misalignment, such as power cord breakage or the lifting light jamming, thus improving the safety and reliability of the equipment. The limit cylinder further restricts the power cord, preventing it from deviating from the track or becoming tangled during lifting. The pre-drilled holes provide a suitable passage for these connecting wires, allowing workers to easily lead them out, offering convenience. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0018] Figure 2 This is a breakdown diagram of an embodiment.

[0019] Figure 3 This is a schematic diagram showing the disassembled mounting box and traction wheel in an embodiment.

[0020] Figure 4 This is a rear view of the internal gear in an embodiment.

[0021] In the diagram: 1. Top of the cover; 2. Lamp cover; 3. Mounting box; 4. Bottom of the cover; 5. Power supply for the lifting lamp; 6. Base plate; 7. Lamp cover; 8. Electric slip ring; 9. Motor; 10. Traction wheel; 11. Power cord; 12. Pulley; 13. PCB; 14. Pinion gear; 15. First micro switch; 16. Internal gear; 17. Protrusion; 18. Mounting frame; 19. Limiting wheel; 20. Second micro switch; 21. Limiting cylinder; 22. Reserved hole. Detailed Implementation

[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1-3 As shown, a traction mechanism for a lifting lamp includes a top cover 1, which is detachably mounted on the top surface of a lamp cover 2. A mounting box 3 is fixed inside the lamp cover 2. The top cover 1 is bolted to the mounting box 3. A bottom cover 4 is fixed to the front side of the mounting box 3. A power supply 5 for the lifting lamp is fixed to the front side of the bottom cover 4. A base plate 6 is fixed inside the mounting box 3. A lamp cover 7 is fixed to the rear side of the mounting box 3. An electric slip ring 8 is fixed inside the lamp cover 7. A motor 9 is fixed to the rear side of the lamp cover 7. The output shaft of the motor 9 passes through the lamp cover 7 and is fixed to a traction wheel 10. A power cord 11 is wound around the outer wall of the traction wheel 10. A pulley 12 is rotatably arranged inside the mounting box 3. One end of the power cord 11 passes around the pulley 12 and passes through the base plate 6 and the lamp cover 2 in sequence. The other end of the power cord 11 is fixedly connected to the electric slip ring 8. A PCB 13 is fixed to the top surface of the base plate 6. The PCB 13 is electrically connected to the motor 9. Several female seats are provided on the PCB 13.

[0024] In use, the operator first securely connects the bottom end of the power cord 11 to the lifting light (not shown in the figure) to provide a stable power supply. Next, the operator accurately connects the power cord 11 on the slip ring 8 to the switch to prepare for the transmission of subsequent operation commands. Then, the entire device is installed in the required position. Afterward, the operator operates the switch, which accurately transmits the operation command to the PCB 13. Upon receiving the command, the PCB 13 controls the motor 9 to rotate. The output shaft of the motor 9 drives the traction wheel 10 to rotate synchronously. Since the power cord 11 is wound on the traction wheel 10, the power cord 11 begins to unwind as the traction wheel 10 rotates. Driven by the power cord 11, the lifting light begins to descend. During this process, the pulley 12 plays a crucial guiding role, making the movement of the power cord 11 smoother and reducing friction and resistance. When the lifting light reaches the lowest position, the operator again issues a reverse operation command through the switch. The motor 9 rotates in the reverse direction, driving the traction wheel 10 to rotate in the reverse direction as well. At this time, the power cord 11 retracts, pulling the lifting light upward.

[0025] Through the coordinated action of the top cover 1, lamp cover 2, mounting box 3, bottom cover 4, lifting lamp power supply 5, base plate 6, lamp cover 7, electric slip ring 8, motor 9, traction wheel 10, power cord 11, pulley 12 and PCB 13, the lifting and traction function of the lifting lamp is realized. The power cord 11 can not only provide the required power for the lifting lamp, but also act as the traction line. There is no need to use the traction line and the power cord 11 separately, which effectively simplifies the structure, reduces the number of parts, reduces costs, and makes the whole device more aesthetically pleasing.

[0026] like Figures 2-4 As shown, a small gear 14 is fixed to the front side of the traction wheel 10, and a first micro switch 15 is fixed to the front side of the outer wall of the mounting box 3. The first micro switch 15 is electrically connected to the PCB 13. An internal gear 16 is rotatably arranged between the mounting box 3 and the bottom of the cover 4. The internal gear 16 meshes with the small gear 14, and the outer wall of the internal gear 16 has a protrusion 17.

[0027] During use, when the traction wheel 10 rotates under the drive of the motor 9, the pinion 14 also rotates. Since the pinion 14 meshes with the internal gear 16, the rotation of the pinion 14 will drive the internal gear 16 to rotate synchronously. The protrusion 17 on the outer wall of the internal gear 16 rotates together with the internal gear 16. When the protrusion 17 rotates to contact the first micro switch 15, it indicates that the power cord 11 and the lifting light have moved to the preset highest position. At this time, the first micro switch 15 will quickly transmit this information to the PCB 13. After receiving the signal, the PCB 13 will immediately control... Motor 9 stops rotating to prevent the light lift from continuing to rise and causing damage. When the light lift needs to descend, motor 9 rotates in the opposite direction, and internal gear 16 and protrusion 17 also rotate in the opposite direction. When protrusion 17 contacts the first micro switch 15 again, it indicates that power line 11 and the light lift have reached the lowest position. The information is also transmitted to PCB 13 to stop motor 9. This achieves precise control of the upper and lower limits, accurately controlling the lifting range of the light lift, preventing the light lift from exceeding the safe operating range, effectively protecting the light lift and related components, and extending the service life of the equipment.

[0028] like Figures 1-3 As shown, a mounting frame 18 is fixed inside the base plate 6. A limit wheel 19 is rotatably installed inside the mounting frame 18. The limit wheel 19 is in contact with the power line 11. A second micro switch 20 is provided on the PCB 13 and is electrically connected to the PCB 13.

[0029] During use, when the power cord 11 moves up and down under the drive of the traction wheel 10, the limit wheel 19 will rotate with the movement of the power cord 11. The presence of the limit wheel 19 plays an effective role in limiting the power cord 11, preventing the power cord 11 from moving back and forth during the lifting process, ensuring the stability of the movement trajectory of the power cord 11. At the same time, since the limit wheel 19 can rotate freely, the friction between it and the power cord 11 is reduced, making the power cord 11 smoother when lifting and lowering, reducing wear caused by friction, and improving the service life of the power cord 11. During normal lifting and lowering operation, the power cord 11 generally does not come into contact with the second micro switch 20. However, if the power cord 11 becomes misaligned due to certain reasons (such as the device being impacted by external force, or components becoming loose due to aging), the power cord 11 will come into contact with the second micro switch 20. Once contact is made, the second micro switch 20 will immediately transmit this abnormal information to the PCB 13. After receiving the signal, the PCB 13 will quickly control the motor 9 to stop rotating, thereby stopping the movement of the power cord 11 and the lifting light. This prevents more serious faults caused by the misalignment of the power cord 11, such as the power cord 11 breaking or the lifting light getting stuck, thus improving the safety and reliability of the equipment.

[0030] like Figures 1-3As shown, a limiting cylinder 21 is fixed on the bottom surface of the base plate 6, and the power cord 11 passes through the limiting cylinder 21. A reserved hole 22 is provided on the bottom front side of the cover 1.

[0031] During use, the power cord 11 needs to pass through the limiting cylinder 21 during lifting and lowering. The limiting cylinder 21 further limits the power cord 11, preventing it from deviating from the track or becoming tangled during lifting and lowering, making the movement of the power cord 11 more regular and orderly, and further enhancing the stability of the power cord 11's movement. During the installation and wiring of the device, some connecting wires inside the device (such as wires connected to external power sources, control signal wires, etc.) need to be led out of the device for connection with other equipment or power sources. The reserved hole 22 provides a suitable passage for these connecting wires, allowing workers to easily lead the connecting wires out from the reserved hole 22, providing convenience.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A traction mechanism for a lifting lamp, comprising a cover (1) detachably mounted on the top surface of a lampshade (2), characterized in that, The lampshade (2) has a mounting box (3) fixed inside. The top of the lampshade (1) is bolted to the mounting box (3). The bottom of the lampshade (4) is fixed to the front of the mounting box (3). The power supply for the lifting lamp (5) is fixed to the front of the bottom of the lampshade (4). The base plate (6) is fixed inside the mounting box (3). The lamp cover (7) is fixed to the rear of the mounting box (3). The slip ring (8) is fixed inside the lamp cover (7). The motor (9) is fixed to the rear of the lamp cover (7). The output shaft of the motor (9) passes through the lamp cover (7) and is fixed. A traction wheel (10) is fixed, and a power cord (11) is wound around the outer wall of the traction wheel (10). A pulley (12) is rotatably provided inside the mounting box (3). One end of the power cord (11) passes around the pulley (12) and passes through the base plate (6) and the lampshade (2) in sequence. The other end of the power cord (11) is fixedly connected to the electric slip ring (8). A PCB (13) is fixed on the top surface of the base plate (6). The PCB (13) is electrically connected to the motor (9). Several female seats are provided on the PCB (13).

2. The traction mechanism for a lifting light according to claim 1, characterized in that: A small gear (14) is fixed to the front side of the traction wheel (10), and a first micro switch (15) is fixed to the front side of the outer wall of the mounting box (3). The first micro switch (15) is electrically connected to the PCB (13). An internal gear (16) is rotatably arranged between the mounting box (3) and the bottom of the cover (4). The internal gear (16) meshes with the small gear (14), and the outer wall of the internal gear (16) has a protrusion (17).

3. The traction mechanism for a lifting light according to claim 2, characterized in that: The base plate (6) has a mounting frame (18) fixed inside. The mounting frame (18) has a rotatable limit wheel (19) inside. The limit wheel (19) is in contact with the power cord (11).

4. The traction mechanism for a lifting light according to claim 3, characterized in that: The PCB (13) is provided with a second micro switch (20), which is electrically connected to the PCB (13).

5. The traction mechanism for a lifting light according to claim 1, characterized in that: A limiting cylinder (21) is fixed to the bottom surface of the base plate (6), and the power line (11) passes through the limiting cylinder (21).

6. The traction mechanism for a lifting light according to claim 5, characterized in that: A pre-drilled hole (22) is provided on the bottom front side of the cover (1).

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