Electric lifter for lamp
By setting a trigger switch and conductive slip ring in the electric lifter for lamps, the wire is stretched and the motor is triggered to control the motor, the problem of excessive stretching of the wire is solved, and the safety and reliability of the wire is improved.
Patent Information
- Application Number
- CN202422488687.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In existing electric lifting and suspension lamps, the wires may exceed the maximum tensile limit when the lamp drops to the lowest point, resulting in broken wires or damaged insulation layer, shortening service life and safety hazards.
An electric lifter for lamps is designed, including a winding disc, a trigger switch, a conductive slip ring and a conductive contact piece. The trigger switch senses the stretched state of the wire and triggers the signal when it reaches the maximum extension length, causing the motor to stop or reverse, and combines the stable electrical connection between the conductive slip ring and the conductive contact piece to ensure the reliability of the electrical system.
Effectively prevent excessive stretching of wires, extend the service life of wires, avoid safety hazards such as short circuits and leakage, and improve system safety and electrical reliability.
Smart Images
Figure CN223121358U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lamp lifting, in particular to an electric lifter for lamps. Background Art
[0002] In the design of existing electric lift suspension lamps, the wire is usually responsible for connecting the lamp to the power supply and also needs to bear the tensile force caused by the weight of the lamp. When the lamp moves up and down through the electric drive system, the wire is also stretched or retracted accordingly. If the lamp is not properly designed, especially when the lamp descends to the lowest point, the wire may exceed its designed maximum stretching limit, resulting in excessive stress on the internal conductor of the wire, and then there is a risk of breakage or damage to the insulation layer. This situation will not only shorten the service life of the wire, but also may cause safety hazards such as short circuit and electric leakage. Content of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an electric lifter for lamps, which can effectively avoid the problems caused by excessive stretching of the wire.
[0004] An electric lifter for lamps according to the utility model includes a housing, a motor, a wire reel, a trigger switch, a conductive slip ring and a conductive contact piece. The motor is fixedly installed in the housing, and the motor has a rotating shaft; the wire reel is rotatably installed in the housing, the wire reel is provided with a central hole adapted to the rotating shaft, and a wire winding groove for winding the wire is provided on the outer peripheral wall of the wire reel; the trigger switch is installed in the wire reel, the trigger switch is provided with a contact head, the contact head extends into the wire winding groove, when winding the wire, the wire presses the contact head to disconnect the trigger switch, when the wire is pulled to the end, the contact head pops up and can contact and conduct electricity in the wire winding groove to trigger a signal, and the motor can receive the signal and stop or reverse; the conductive slip ring is fixedly installed on the wire reel, one end of the wire is electrically connected to the lamp, and the other end of the wire is electrically connected to the conductive slip ring; the conductive contact piece is fixedly installed in the housing, and the conductive contact piece is in electrical contact with the conductive slip ring and is electrically connected to an external power supply.
[0005] The electric lifter for lamps according to the embodiment of the utility model has at least the following beneficial effects:
[0006] The electric lifter for lamps provided by the embodiment of the present utility model is provided with a trigger switch inside the wire winding disc, and the contact of the trigger switch can sense the stretching state of the wire. When the wire reaches the preset maximum extended length, the contact bounces off and triggers a signal, so that the motor can stop or reverse, thereby effectively preventing the wire from extending excessively, effectively avoiding the wire from being broken or damaged due to excessive stretching, significantly extending the service life of the wire, and effectively avoiding potential safety hazards such as short circuits and electric leakage caused by the excessive extension of the wire, and significantly improving the overall safety of the system. By setting a stable electrical connection between the conductive slip ring and the conductive contact piece, a good electrical connection can be maintained even when the wire winding disc rotates, improving the reliability of the electrical system.
[0007] According to some embodiments of the present utility model, a fixing groove is provided on the surface of the wire winding disc, the trigger switch is fixedly installed in the fixing groove, a notch communicating with the fixing groove is provided on the inner wall of the wire winding groove, and the contact extends out of the notch.
[0008] According to some embodiments of the present utility model, the shape of the fixing groove is adapted to that of the trigger switch.
[0009] According to some embodiments of the present utility model, the fixing groove is arranged adjacent to the central hole.
[0010] According to some embodiments of the present utility model, a first installation groove is provided at one end of the housing, a second installation groove is provided at the other end of the housing, the motor is fixedly installed in the first installation groove, the wire winding disc is rotatably installed in the second installation groove, and the rotating shaft extends into the second installation groove and is matched with the central hole.
[0011] According to some embodiments of the present utility model, the conductive slip ring is fixedly connected to the side of the wire winding disc away from the motor by bolts, a wire passing hole is provided on the inner wall of the wire winding groove, and one end of the wire passes through the wire passing hole to be electrically connected to the conductive slip ring.
[0012] According to some embodiments of the present utility model, the housing is provided with an end cover to open or close the second installation groove, the conductive contact piece is fixed to the inner side of the end cover by bolts, a plurality of conductive contacts are provided on the side of the conductive contact piece close to the conductive slip ring, and the conductive contacts are in electrical contact with the conductive slip ring.
[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The following further describes the present utility model in conjunction with the drawings and embodiments, wherein:
[0015] Figure 1 Exploded view of the electric lifter for lamps of the embodiment of the present utility model;
[0016] Figure 2 Schematic diagram of the first step during the installation of the electric lifter for lamps of the embodiment of the present utility model;
[0017] Figure 3 Schematic diagram of the second step during the installation of the electric lifter for lamps of the embodiment of the present utility model;
[0018] Figure 4 Schematic diagram of the third step during the installation of the electric lifter for lamps of the embodiment of the present utility model;
[0019] Figure 5 Schematic diagram of the fourth step during the installation of the electric lifter for lamps of the embodiment of the present utility model.
[0020] Among them, reference numerals:
[0021] Housing 100; First installation groove 110; Second installation groove 120; End cover 130; Third installation groove 131; Motor 200; Winding disc 300; Central hole 310; Winding groove 320; Fixed groove 330; Trigger switch 400; Conductive slip ring 500; Conductive contact piece 600. Specific embodiments
[0022] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0023] In the description of the present utility model, it should be understood that the orientation descriptions such as up, down, front, back, left, right, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0024] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0025] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution. In the description of the present utility model, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0026] Referring to Figures 1 to 5 , an electric lifter for a lamp according to the present utility model includes a housing 100, a motor 200, a wire winding disc 300, a trigger switch 400, a conductive slip ring 500, and a conductive contact piece 600. The motor 200 is fixedly installed in the housing 100, and the motor 200 has a rotating shaft. The wire winding disc 300 is rotatably installed in the housing 100. The wire winding disc 300 is provided with a central hole 310 for cooperating with the rotating shaft, and a wire winding groove 320 for winding a wire is provided on the outer peripheral wall of the wire winding disc 300. The trigger switch 400 is installed in the wire winding disc 300. The trigger switch 400 is provided with a contact, and the contact extends into the wire winding groove 320. When winding the wire, the wire presses the contact to disconnect the trigger switch 400. When the wire is pulled to the end, the contact bounces and can contact and conduct electricity in the wire winding groove 320 to trigger a signal, and the motor 200 can receive the signal and stop or reverse. The conductive slip ring 500 is fixedly installed on the wire winding disc 300. One end of the wire is electrically connected to the lamp, and the other end of the wire is electrically connected to the conductive slip ring 500. The conductive contact piece 600 is fixedly installed in the housing 100, and the conductive contact piece 600 is in electrical contact with the conductive slip ring 500 and is electrically connected to an external power supply.
[0027] Specifically, the electric lifter for lamps provided by the embodiments of the present utility model is provided with a trigger switch 400 inside the wire winding disc 300, and the contact of the trigger switch 400 can sense the stretching state of the wire. When the wire reaches the preset maximum extension length, the contact bounces off and triggers a signal, enabling the motor 200 to stop or reverse, thereby effectively preventing the wire from extending excessively, effectively avoiding the wire from being broken or damaged due to excessive stretching, significantly extending the service life of the wire, and effectively avoiding potential safety hazards such as short circuits and electric leakage caused by excessive wire extension, and significantly improving the overall safety of the system. By setting a stable electrical connection between the conductive slip ring 500 and the conductive contact piece 600, a good electrical connection can be maintained even when the wire winding disc 300 rotates, improving the reliability of the electrical system.
[0028] Further, referring to Figure 2 , according to some embodiments of the present utility model, a fixing groove 330 is provided on the surface of the wire winding disc 300, the trigger switch 400 is fixedly installed in the fixing groove 330, a notch (not shown in the figure) communicating with the fixing groove 330 is provided on the inner wall of the wire winding groove 320, and the contact extends out of the notch.
[0029] Preferably, according to some embodiments of the present utility model, the shape of the fixing groove 330 is adapted to that of the trigger switch 400, so as to better fixedly install the trigger switch 400, ensure the stable connection between components, simplify the installation process at the same time, and make the product more stable and convenient for installation and debugging.
[0030] Preferably, according to some embodiments of the present utility model, the fixing groove 330 is arranged adjacent to the central hole 310.
[0031] Further, referring to Figure 1 , according to some embodiments of the present utility model, a first installation groove 110 is provided at one end of the housing 100, a second installation groove 120 is provided at the other end of the housing 100, the motor 200 is fixedly installed in the first installation groove 110, the wire winding disc 300 is rotatably installed in the second installation groove 120, and the rotating shaft extends into the second installation groove 120 and cooperates with the central hole 310.
[0032] Further, referring to Figures 1 to 5 , according to some embodiments of the present utility model, the conductive slip ring 500 is fixedly connected to the side of the wire winding disc 300 away from the motor 200 by bolts, a wire passing hole (not shown in the figure) is provided on the inner wall of the wire winding groove 320, and one end of the wire passes through the wire passing hole to be electrically connected to the conductive slip ring 500.
[0033] Further, referring to Figures 1 to 5, according to some embodiments of the present utility model, the housing 100 is provided with an end cover 130 to open or close the second installation groove 120. The conductive contact piece 600 is fixed to the inner side of the end cover 130 by bolts. A plurality of conductive contacts are provided on one side of the conductive contact piece 600 close to the conductive slip ring 500, and the conductive contacts are in electrical contact with the conductive slip ring 500.
[0034] Further, referring to Figure 4 , according to some embodiments of the present utility model, the inner side surface of the end cover 130 is provided with a third installation groove 131 adapted to the shape of the conductive contact piece 600. The conductive contact piece 600 is installed in the third installation groove 131, which is convenient for the accurate positioning of the conductive contact piece 600 and convenient for installation.
[0035] It can be understood that in the embodiments of the present utility model, by reasonably arranging components such as the motor 200, the winding disc 300, and the conductive slip ring 500, and fixing them through the fixing groove 330, the installation groove, etc., the stable connection between the components is ensured. At the same time, the installation process is simplified, making the product more stable and convenient for installation and debugging.
[0036] Referring to Figures 1 to 5 , in the embodiments of the present utility model, during installation, in the first step, referring to Figure 2 , fix the motor 200 into the first installation groove 110 at the bottom of the housing 100 by bolts or other fasteners.
[0037] In the second step, referring to Figure 3 , install the trigger switch 400 into the fixing groove 330 of the winding disc 300, connect the wires, then lock the conductive slip ring 500 on the winding disc 300 by bolts or other fasteners, and pass one end of the wire through the wire passing hole and electrically connect it to the conductive slip ring 500.
[0038] In the third step, referring to Figure 4 , lock the conductive contact piece 600 on the inner side of the end cover 130 by bolts or other fasteners.
[0039] In the fourth step, referring to Figure 5 , lock the end cover 130 on the housing 100 by bolts or other fasteners to close the second installation groove 120.
[0040] The above has described the embodiments of the present utility model in detail with reference to the drawings. However, the present utility model is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model.
Claims
1. An electric elevator for a lighting fixture, characterized in that, Comprising: A housing; A motor fixedly installed on the housing, the motor having a rotating shaft; A wire winding disc rotatably installed on the housing, the wire winding disc being provided with a central hole adapted to cooperate with the rotating shaft, and the outer peripheral wall of the wire winding disc being provided with a wire winding groove for winding an electric wire; A trigger switch installed in the wire winding disc, the trigger switch being provided with a contact, the contact extending into the wire winding groove. During wire winding, the electric wire presses against the contact to disconnect the trigger switch. When the electric wire is pulled to the end, the contact springs open and can contact and conduct electricity in the wire winding groove to trigger a signal, and the motor can receive the signal and stop or reverse; A conductive slip ring fixedly installed on the wire winding disc, one end of the electric wire being electrically connected to a lamp, and the other end of the electric wire being electrically connected to the conductive slip ring; A conductive contact piece fixedly installed on the housing, the conductive contact piece being in electrical contact with the conductive slip ring and electrically connected to an external power supply.
2. The electric lifter for a lamp according to claim 1, wherein The surface of the wire winding disc is provided with a fixing groove, the trigger switch is fixedly installed in the fixing groove, the inner wall of the wire winding groove is provided with a notch communicating with the fixing groove, and the contact extends out of the notch.
3. The electric lifter for a lamp according to claim 2, characterized in that, The fixing groove is adapted to the shape of the trigger switch.
4. The electric lifter for a lamp according to claim 2, wherein, The fixing groove is arranged adjacent to the central hole.
5. The electric lifter for a lamp according to claim 1, wherein, One end of the housing is provided with a first installation groove, and the other end of the housing is provided with a second installation groove. The motor is fixedly installed in the first installation groove, the wire winding disc is rotatably installed in the second installation groove, and the rotating shaft extends into the second installation groove and cooperates with the central hole.
6. The electric lifter for a lamp according to claim 5, characterized in that, The conductive slip ring is fixedly connected to the side of the wire winding disc away from the motor by bolts. The inner wall of the wire winding groove is provided with a wire passing hole, and one end of the electric wire passes through the wire passing hole to be electrically connected to the conductive slip ring.
7. The electric lifter for a lamp according to claim 6, characterized in that, The housing is provided with an end cover to open or close the second installation groove. The conductive contact piece is fixed to the inner side of the end cover by bolts. The side of the conductive contact piece close to the conductive slip ring is provided with a plurality of conductive contacts, and the conductive contacts are in electrical contact with the conductive slip ring.