Novel lamp lifter
Through innovative design of the front shell, rear shell, rotating shaft, spring, and winding wheel, the problem of gear and screw damage in the lamp lifter under heavy loads has been solved, achieving a longer service life and higher safety.
Patent Information
- Application Number
- CN202520353932.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing lighting fixture lifting devices can cause excessive force exerted by the gears on the screw when the lighting fixture is heavy, leading to screw breakage or gear teeth snapping, posing safety hazards and resulting in a short service life.
It adopts a structure consisting of a front shell, a rear shell, a rotating shaft, a spring, and a winding wheel. A spring box is set on one side of the winding wheel. One end of the spring is fixed to the rotating shaft, and the other end is fixed to the side wall of the spring box. A locking disc is set on the rotating shaft. The outer periphery of the locking disc has a first helical tooth that meshes with the second helical tooth on the periphery of the through hole to restrict the rotation of the rotating shaft. The spring generates an elastic force protection device between the rotating shaft and the winding wheel.
It effectively prevents screw breakage and gear tooth chipping, extends service life, and reduces safety hazards.
Smart Images
Figure CN223924709U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of lifter, especially a novel lamp lifter. BACKGROUND
[0002] The chandelier has many use scenes, and different use scenes have different height requirements for the lamp, the lamp lifter in the prior art comprises a shell, a middle shaft and a winding wheel, the winding wheel is arranged on the middle shaft, a gear is fixed on one side of the winding wheel, a screw rod is installed in the shell, the screw rod is in gear with the gear, the gear is driven to rotate by rotating the screw rod manually, the winding wheel is driven to rotate, and the length of the electric wire is adjusted, however, when the weight of the lamp is too large, the force applied to the screw rod by the gear is too large, the screw rod is broken, or the gear teeth are broken, which causes safety hazards and shortens the service life. UTILITY MODEL CONTENTS
[0003] The utility model discloses a novel lamp lifter, which solves the problem that when the weight of the lamp lifter in the prior art is too large, the force applied to the screw rod by the gear is too large, the screw rod is broken, or the gear teeth are broken, which causes safety hazards and shortens the service life.
[0004] The utility model discloses a novel lamp lifter, which solves the problem that when the weight of the lamp lifter in the prior art is too large, the force applied to the screw rod by the gear is too large, the screw rod is broken, or the gear teeth are broken, which causes safety hazards and shortens the service life.
[0005] The utility model discloses a novel lamp lifter, which solves the problem that when the weight of the lamp lifter in the prior art is too large, the force applied to the screw rod by the gear is too large, the screw rod is broken, or the gear teeth are broken, which causes safety hazards and shortens the service life.
[0006] The winding wheel is installed on the rotating shaft and rotates, one side of the winding wheel is fixedly provided with a spring winding box, the spring winding box is provided with a spring, one end of the spring is fixed on the rotating shaft, and the other end is fixed on the side wall of the spring winding box, the rotating shaft is fixedly provided with a locking disc, the locking disc is provided with first bevel gears on the periphery in the direction of the first through hole, the first bevel gears are arranged around the rotating shaft, the periphery of the first through hole corresponding to the first bevel gears is provided with second bevel gears, and the first bevel gears are in gear with the second bevel gears to limit the rotation of the rotating shaft.
[0007] The cavity is provided with a guide wheel, and the guide wheel is located at the bottom of the winding wheel.
[0008] The rotating shaft is provided with a second recess, and part of the spring is embedded into the second recess.
[0009] The aforementioned rotating shaft is provided with a slot, and the end of the coil spring at its center is inserted into the slot for fixation.
[0010] The aforementioned coil spring box has a protrusion located near the side wall, and the outer end of the coil spring engages with the protrusion.
[0011] A circuit board is installed in the cavity described above.
[0012] Metal mounting plates are installed on the aforementioned front and rear shells. The metal mounting plates have hanging ears at both ends. The hanging ears are inserted into the top of the front and rear shells respectively, and are fixed to the front and rear shells by screws passing through the hanging ears.
[0013] The second slot is located at the end of the pivot in the front housing.
[0014] The aforementioned coiled spring box is covered with a lid.
[0015] The aforementioned winding reel is surrounded by a first wire, which is electrically connected to a circuit board on a wire fixing frame. A second wire extends from the circuit board and passes through the front housing to extend outwards.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] 1) This utility model describes a novel lamp lifter, comprising a front shell, a rear shell, a rotating shaft, a spring, and a winding wheel. The front shell and the rear shell are connected in a capping manner, and cavities are formed within the front and rear shells. A first recess is provided on the side wall of the rear shell, and a first through hole is provided on the side wall of the front shell. The rotating shaft is installed in the first recess and the first through hole for rotation. The spring is disposed between the first recess and the rotating shaft. The winding wheel is installed on the rotating shaft for rotation. A spring box is fixedly provided on one side of the winding wheel, and a spring is disposed within the spring box. One end of the coil spring is fixed to the rotating shaft, and the other end is fixed to the side wall of the coil spring box. A locking disc is fixed on the rotating shaft. A first helical tooth is provided on the periphery of the locking disc in the direction of the first through hole. The first helical tooth is arranged around the rotating shaft. A second helical tooth is provided on the periphery of the first through hole corresponding to the first helical tooth. The first helical tooth and the second helical tooth mesh to restrict the rotation of the rotating shaft. When the weight of the lamp is too large, the coil spring generates elastic force between the rotating shaft and the winding wheel, protecting the entire lamp lifting device and preventing the screw from breaking or the gear teeth from chipping. It has a long service life and reduces safety hazards.
[0018] 2) Other advantages of this utility model are described in detail in the embodiment section of the specification. Attached image description:
[0019] Figure 1 This is a perspective view of the novel lamp lifter provided in this embodiment of the utility model;
[0020] Figure 2 This is a cross-sectional view of the novel lamp lifter provided in this embodiment of the utility model;
[0021] Figure 3 This is an exploded view of the novel lamp lifter provided in this embodiment of the utility model;
[0022] Figure 4 This is an exploded view of the novel movable door lock body provided in this embodiment of the utility model;
[0023] Figure 5 This is an exploded view of the winding reel provided in an embodiment of this utility model. Detailed implementation method:
[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0027] like Figures 1 to 5As shown, this embodiment provides a novel lamp lifter, including a front shell 1, a rear shell 2, a rotating shaft 3, a spring 4, and a winding wheel 5. The front shell 1 and the rear shell 2 are connected by a cover, or they can be fixed by a snap-fit or screws. A cavity is formed inside the front shell 1 and the rear shell 2. A first recess 21 is provided on the side wall inside the rear shell 2, and a first through hole 11 is provided on the side wall inside the front shell 1. The first recess 21 and the first through hole 11 are on the same axis. The rotating shaft 3 is installed in the first recess 21 and the first through hole 11 and rotates therein. The spring 4 is located between the first recess 21 and the rotating shaft 3, and the spring 4 pushes the rotating shaft towards the front shell 1. The winding wheel 5 is installed on the rotating shaft 3 and rotates therein. A coil is fixedly positioned on one side of the winding wheel 5. A spring box 51 contains a coil spring 52. One end of the coil spring 52 is fixed to the rotating shaft 3, and the other end is fixed to the side wall of the spring box 51. A locking disc 31 is fixed on the rotating shaft 3. A first helical tooth 32 is provided on the periphery of the locking disc 31 towards the first through hole 11. The first helical tooth 32 is arranged around the rotating shaft 3. A second helical tooth 12 is provided on the periphery of the first through hole 11 corresponding to the first helical tooth 32. The first helical tooth 32 and the second helical tooth 12 mesh to restrict the rotation of the rotating shaft 3. When the weight of the lamp is too large, the coil spring 52 generates elastic force between the rotating shaft 3 and the winding wheel 5, protecting the entire lamp lifting device and preventing the screw from breaking or the gear teeth from chipping. This results in a long service life and reduces safety hazards.
[0028] As an optional embodiment, a guide wheel 6 is provided inside the cavity. The guide wheel 6 is located at the bottom of the winding wheel 5, and the guide wheel 6 can change the direction of the wire exit.
[0029] As an optional embodiment, the rotating shaft 3 is provided with a second recessed hole 33, and a portion of the spring 4 is embedded in the second recessed hole 33. The spring 4 is inserted into the second recessed hole 33, which can prevent the spring 4 from being misaligned.
[0030] As an optional embodiment, the rotating shaft 3 is provided with a slot 34, and the central end of the coil spring 52 is inserted into the slot 34 for fixation, which makes it easy to fix. The coil spring box 51 is provided with a protrusion 510 near the side wall, and the outer end of the coil spring 52 is fastened to the protrusion 510, which makes installation convenient and the structure simple.
[0031] As an optional embodiment, a circuit board is installed on the circuit board mounting bracket 7 inside the cavity.
[0032] As an optional embodiment, a metal hanging plate 8 is installed on the front shell 1 and the rear shell 2. The metal hanging plate 8 has a hanging ear 81 at both ends. The hanging ear 81 is inserted into the top of the front shell 1 and the rear shell 2 respectively, and is fixed to the front shell 1 and the rear shell 2 by screws passing through the hanging ear 81, so as to prevent the front shell 1 and the rear shell 2 from cracking during use.
[0033] As an optional embodiment, a second slot 35 is located at the end of the rotating shaft 3 at the front housing 1. The length of the wire can be adjusted outside the front housing 1 through the second slot 35. The rotating shaft 3 needs to be pressed to separate the first helical tooth 32 from the second helical tooth 12. Rotating the rotating shaft 3 causes the winding wheel 5 to rotate. The coil spring 52 is not under force and is in a normal state. Therefore, the first wire 53 will be taken in or put out when the winding wheel 5 rotates.
[0034] As an optional embodiment, the spring box 51 is covered by a cover 511, which covers the spring box 51 to prevent the spring 52 from bursting out.
[0035] As an optional embodiment, a first wire 53 is wound around the winding wheel 5. The first wire 53 is electrically connected to a circuit board on the wire fixing frame 7. The circuit board is used for wire connection and voltage conversion. A second wire extends from the circuit board and passes through the front housing to the outside.
[0036] In existing lighting fixture lifting devices, when the weight is too large, the force exerted by the gears on the screw can be excessive, causing the screw to break or the teeth on the gears to snap, easily creating safety hazards and shortening the service life. Therefore, a new type of lighting fixture lifting device is provided, in which the winding wheel 5 is mounted on the rotating shaft 3 for rotation. A spring box 51 is fixedly provided on one side of the winding wheel 5, and a spring 52 is provided inside the spring box 51. One end of the spring 52 is fixed to the rotating shaft 3, and the other end is fixed to the side wall of the spring box 51. A locking disc 31 is fixed, and a first helical tooth 32 is provided on the periphery of the locking disc 31 towards the first through hole 11. The first helical tooth 32 is arranged around the rotating shaft 3. A second helical tooth 12 is provided on the periphery of the first through hole 11 corresponding to the first helical tooth 32. The first helical tooth 32 and the second helical tooth 12 mesh to restrict the rotation of the rotating shaft 3. When the weight of the lamp is too large, the coil spring 52 generates elastic force between the rotating shaft 3 and the winding wheel 5, protecting the entire lamp lifting device and preventing the screw from breaking or the gear teeth from chipping. It has a long service life and reduces safety hazards.
[0037] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.
Claims
1. A novel lamp lifting device, comprising a front shell (1), a rear shell (2), a rotating shaft (3), a spring (4), and a winding wheel (5), wherein the front shell (1) and the rear shell (2) are connected by a cover, and a cavity is formed inside the front shell (1) and the rear shell (2), a first recess (21) is provided on the side wall inside the rear shell (2), a first through hole (11) is provided on the side wall inside the front shell (1), the rotating shaft (3) is installed in the first recess (21) and the first through hole (11) for rotation, and the spring (4) is disposed between the first recess (21) and the rotating shaft (3); The winding wheel (5) is mounted on the rotating shaft (3) and rotates, characterized in that: A coil spring box (51) is fixedly provided on one side of the winding wheel (5). A coil spring (52) is provided inside the coil spring box (51). One end of the coil spring (52) is fixed on the rotating shaft (3), and the other end is fixed on the side wall of the coil spring box (51). A locking disc (31) is fixed on the rotating shaft (3). A first helical tooth (32) is provided on the periphery of the locking disc (31) in the direction of the first through hole (11). The first helical tooth (32) is arranged around the rotating shaft (3). A second helical tooth (12) is provided on the periphery of the first through hole (11) corresponding to the first helical tooth (32). The first helical tooth (32) and the second helical tooth (12) mesh to restrict the rotation of the rotating shaft (3).
2. The novel lamp lifter according to claim 1, characterized in that: A guide wheel (6) is provided inside the cavity, and the guide wheel (6) is located at the bottom of the winding wheel (5).
3. The novel lamp lifter according to claim 1, characterized in that: The rotating shaft (3) is provided with a second recess (33), and a portion of the spring (4) is embedded in the second recess (33).
4. A novel lamp lifter according to claim 3, characterized in that: The rotating shaft (3) is provided with a slot (34), and the end of the coil spring (52) at the center is inserted into the slot (34) for fixation.
5. A novel lamp lifter according to claim 4, characterized in that: The coil spring box (51) has a protrusion (510) located near the side wall, and the outer end of the coil spring (52) is engaged with the protrusion (510).
6. A novel lamp lifting device according to claim 1, characterized in that: A circuit fixing frame (7) is installed inside the cavity, and a circuit board is installed on the circuit fixing frame (7).
7. A novel lamp lifter according to claim 1, characterized in that: Metal mounting plates (8) are installed on the front shell (1) and the rear shell (2). The metal mounting plates (8) have hanging ears (81) at both ends. The hanging ears (81) are inserted into the top of the front shell (1) and the rear shell (2) respectively, and are fixed to the front shell (1) and the rear shell (2) by screws passing through the hanging ears (81).
8. A novel lamp lifter according to claim 1, characterized in that: The second slot (35) is located at the end of the pivot (3) at the position of the front shell (1).
9. A novel lamp lifter according to claim 1, characterized in that: The coiled spring box (51) is covered with a cover (511).
10. A novel lamp lifting device according to claim 6, characterized in that: The winding wheel (5) is surrounded by a first wire (53), which is electrically connected to a circuit board on the line fixing frame (7). A second wire extends from the circuit board and passes through the front shell to extend outward.