CN223165530U

CN223165530U - Lifter and lamp

Info

Publication number: CN223165530U
Application number: CN202422169984.8U
Authority: CN
Inventors: 张国龄
Original assignee: Zhongshan Mulan Hardware Lighting Co ltd
Current assignee: Zhongshan Mulan Hardware Lighting Co ltd
Priority date: 2024-09-04
Filing date: 2024-09-04
Publication date: 2025-07-29
Anticipated expiration: 2034-09-04

Abstract

The utility model provides a lifter and a lamp, which belongs to the technical field of lighting equipment. The lifter includes a shell, a driving device, a winding structure, a power supply device and a wire; the shell defines a accommodating cavity, and one side of the shell is provided with a through hole connected to the accommodating cavity; the power supply device is connected to the shell and accommodated in the accommodating cavity; the winding structure is arranged in the accommodating cavity, and the winding structure is rotatably connected to the power supply device to define an annular channel; the output end of the driving device is connected to the winding structure through a transmission structure; the wire is at least partially accommodated in the annular channel, the wire is wound around the winding structure, one end of the wire is connected to the power supply device, and the other end of the wire is passed through the through hole and is used to connect to the lamp. The lifter provided by the utility model adjusts the height of the lamp by adjusting the length of the wire located outside the shell to meet the user's requirements for the height and lighting effect of the lamp, and is also easy to clean the lamp to enhance the user's experience.

Description

Lifter and lamp

Technical Field

The utility model relates to the technical field of lighting equipment, in particular to a lifter and a lamp.

Background

At present, after the ceiling lamp on the market is installed, the installation height is fixed at a position, so that in certain specific installation environments or certain specific occasions, such as very high ceilings in houses, more comfortable lamplight effects are sometimes adjusted through the lamp height, and if the lamp height needs to be changed, a professional is required to climb a ladder to operate, so that the adjustment difficulty is increased, and certain potential safety hazards exist.

Disclosure of utility model

In view of the above, the present utility model is to overcome the defects in the prior art, and provide a lifter and a lamp.

In a first aspect, the present utility model provides a lifter comprising:

A shell defining a containing cavity, wherein one side of the shell is provided with a through hole communicated with the containing cavity;

the power supply device is connected with the shell and is accommodated in the accommodating cavity;

the winding structure is arranged in the accommodating cavity, and the winding structure and the power supply device are rotationally connected with the winding structure to define an annular channel;

The output end of the driving device is in transmission connection with the winding structure through a transmission structure;

The wire is at least partially accommodated in the annular channel, the wire is wound on the winding structure, one end of the wire is connected with the power supply device, and the other end of the wire penetrates through the through hole and is used for being connected with the lamp.

In some embodiments, the winding structure includes a first gear, a limit disk, and a connecting shaft;

One end of the connecting shaft penetrates through the first gear and the limiting disc, and the other end of the connecting shaft is rotationally connected with the power supply device;

The first gear is spaced from the spacing disc to form the annular channel between the first gear, the spacing disc and the connecting shaft.

In some embodiments, the transmission structure includes a reduction gearbox and a transmission gear;

the output shaft of the driving device is in transmission connection with the transmission gear through the reduction gearbox, and the transmission gear is meshed with the first gear.

In some embodiments, the lifter includes an adjustment gear disposed on one side of the winding structure, the adjustment gear being meshed with the first gear.

In some embodiments, the lifter includes a detection assembly including a control board, a first detection switch, a second detection switch, and a third detection switch;

The first detection switch, the second detection switch and the third detection switch are arranged on the control board at intervals;

The control board is connected with the driving device, the control board is provided with a first guide hole, one end of the first guide hole is adjacent to the first detection switch, and the other end of the first guide hole is adjacent to the second detection switch.

In some embodiments, the lifter includes a swing arm structure rotatably connected to the control board, one end of the swing arm structure is abutted to the wire, and the other end of the swing arm structure is disposed between the first detection switch and the second detection switch;

When the wire outside the shell extends to a first length, the swing arm structure triggers the first detection switch, and when the wire outside the shell extends to a second length, the swing arm structure triggers the second detection switch.

In some embodiments, the swing arm structure includes a swing arm, a pulley, a torsion spring, a first connector, and a first feeler lever;

The pulley is at least partially accommodated in the mounting opening and is in rotary connection with the swing arm, and the pulley is abutted against the lead;

one end of the first connecting piece is penetrated through the swing arm and connected with the control board, and the swing arm is rotationally connected with the first connecting piece;

The torsion spring is sleeved on the first connecting piece and is provided with a first end and a second end, the first end is abutted to one end, close to the pulley, of the swing arm, and the second end is abutted to a boss arranged at the bottom of the control panel;

One end of the first feeler lever is connected with one end of the swing arm, which is away from the pulley, and the other end of the first feeler lever penetrates through the first guide hole.

In some embodiments, the lifter includes an elastic limit structure disposed in the receiving cavity and proximate to the through hole;

One end of the elastic limiting structure is abutted to the wire, and the elastic limiting structure is configured to trigger the third detection switch when the wire is loosened.

In some embodiments, the elastic limit structure comprises a support plate, a second feeler lever, a roller, a second connecting piece, an elastic piece and a limit post;

the supporting plate is provided with a second guide hole, one end of the second feeler lever penetrates through the second guide hole, and the other end of the second feeler lever is close to the third detection switch;

The roller is rotationally sleeved on the second feeler lever, one end of the second connecting piece is rotationally connected with the second feeler lever, the other end of the second connecting piece is abutted to one end of the elastic piece, and the other end of the elastic piece is abutted to the limit column;

The second feeler lever can slide along the second guide hole and trigger the third detection switch.

In a second aspect, the utility model provides a lamp, comprising the lifter.

The embodiment of the utility model has the advantages that the output end of the driving device is in transmission connection with the winding structure through the transmission structure, so that the driving device drives the transmission structure to operate through the output end of the driving device and drives the winding structure to rotate through the transmission structure so as to adjust the length of the lead positioned outside the shell, thereby adjusting the height of the lamp, meeting the requirements of a user on the height of the lamp and the effect of light, and simultaneously being easy to clean the lamp so as to improve the use experience of the user.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a lifter according to some embodiments of the present utility model;

FIG. 2 illustrates a schematic view of another view of a lifter provided in accordance with some embodiments of the present utility model;

FIG. 3 shows a cross-sectional view of section B-B of FIG. 2;

FIG. 4 shows an enlarged view of section C of FIG. 3;

FIG. 5 illustrates a schematic view of a view of the interior of a lifter according to some embodiments of the present utility model;

FIG. 6 illustrates a schematic view of another view of the interior of a riser provided by some embodiments of the utility model;

FIG. 7 shows an enlarged view of section D of FIG. 6;

Fig. 8 illustrates a schematic view of other view of the interior of a lifter according to some embodiments of the present utility model.

Description of main reference numerals:

100-shell, 110-accommodating cavity, 120-through hole, 200-power supply device, 300-winding structure, 310-annular channel, 400-driving device, 500-wire, 320-first gear, 330-limit disc, 340-connecting shaft, 600-transmission structure, 610-reduction box, 620-transmission gear, 700-adjusting gear, 800-detection component, 810-control panel, 820-first detection switch, 830-second detection switch, 840-third detection switch, 811-first guide hole, 900-swing arm structure, 910-swing arm, 920-pulley, 930-torsion spring, 940-first connecting piece, 950-first contact rod, 911-installation opening, 931-first end, 932-second end, 812-boss, 1000-elastic limit structure, 1010-support plate, 1020-second contact rod, 1030-roller, second connecting piece, 1050-elastic piece, 1060-limit column and 1011-second guide hole.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, some embodiments of the present utility model provide a lifter, which is mainly applied to a lamp, so as to adjust the height of the lamp, thereby meeting different requirements of a user on light and brightness, and improving the use experience of the user.

The lifter includes a housing 100, a power supply device 200, a winding structure 300, a driving device 400, and a wire 500.

The shape of the housing 100 may be any one or a combination of two or more of a cylindrical shape, a spherical shape, an ellipsoidal shape, a polygonal column shape, and a triangular pyramid shape, and may be specifically set according to practical situations.

In the present embodiment, the following description will be made specifically taking the case 100 as an example of a cylindrical shape.

The housing 100 defines a housing cavity 110, the housing cavity 110 is a cylindrical cavity, a through hole 120 communicating with the housing cavity 110 is provided at one side of the housing 100 in the axial direction, and the axis of the through hole 120 is parallel to or coincides with the axis of the housing 100.

In addition, the power supply device 200 is connected to the housing 100, and the power supply device 200 is accommodated in the accommodating cavity 110, and the connection manner between the power supply device 200 and the housing 100 includes any one of bolting, clamping, bonding, magnetic attraction, and integral molding, and may be specifically set according to the actual situation, so as to supply power to the driving device 400 through the power supply device 200.

In this embodiment, the winding structure 300 is disposed in the accommodating cavity 110, and the winding structure 300 is rotatably connected to the power supply device 200, that is, the winding structure 300 can rotate relative to the power supply device 200.

It should be noted that, the winding structure 300 is spaced from the inner wall of the housing 100 to prevent friction between the winding structure 300 and the housing 100 during rotation, so as to ensure stability and smoothness of the winding structure 300 during rotation.

Further, the winding structure 300 defines an annular channel 310, and an axis of the annular channel 310 coincides with an axis of rotation of the winding structure 300.

In addition, the output end of the driving device 400 is in transmission connection with the winding structure 300 through the transmission structure 600, so that when the driving device 400 operates, the transmission structure 600 is driven to operate through the output end of the driving device 400, and the winding structure 300 is driven to rotate through the transmission structure 600.

Specifically, the wire 500 is wound on the winding structure 300, and at least a part of the wire 500 is accommodated in the annular channel 310, one end of the wire 500 is connected with the power supply device 200, and the other end of the wire 500 is arranged through the through hole 120 and is used for being connected with a lamp, so that the length of the wire 500 outside the shell 100 can be adjusted in the rotating process of the winding structure 300, and the height of the lamp can be adjusted, so that the requirements of a user on the height of the lamp and the effect of light can be met, and meanwhile, the lamp can be cleaned easily, and the use experience of the user can be improved.

It can be understood that when the winding structure 300 rotates in the first direction, the length of the wire 500 wound around the winding structure 300 is gradually reduced, and the length of the wire 500 positioned outside the housing 100 is gradually increased, so that the height of the lamp in the vertical direction can be reduced, and when the winding structure 300 rotates in the second direction, the length of the wire 500 wound around the winding structure 300 is gradually increased, and the length of the wire 500 positioned outside the housing 100 is gradually reduced, so that the height of the lamp in the vertical direction can be increased, and the height of the lamp can be adjusted. Wherein the second direction is counterclockwise if the first direction is clockwise, and the second direction is clockwise if the first direction is counterclockwise.

It should be noted that, during the process of adjusting the length of the wire 500, one end of the wire 500 is electrically connected to the power supply device 200 all the time, so that the lamp can be turned on at any position.

As shown in fig. 8, in some embodiments of the present utility model, the winding structure 300 includes a first gear 320, a limiting plate 330, and a connecting shaft 340.

One end of the connecting shaft 340 is disposed through the first gear 320 and the limiting plate 330, and coaxially connects the first gear 320 and the limiting plate 330 via the connecting shaft 340. Meanwhile, the other end of the connection shaft 340 is rotatably connected with the power supply device 200 such that the first gear 320 and the limiting plate 330 can rotate with respect to the power supply device 200.

In addition, the space between the first gear 320 and the limiting disc 330 may be specifically set according to practical situations, so that the annular channel 310 is formed between the first gear 320, the limiting disc 330 and the connecting shaft 340, so that the wire 500 can be partially accommodated in the annular channel 310, and thus, a limiting effect is provided for the wire 500 through the first gear 320 and the limiting disc 330, so as to ensure stability and smoothness of the wire 500 in the winding process, and ensure the orderly winding of the wire 500.

In some embodiments, contact between the first gear 320 and the limiter disc 330 and the wire 500. In other embodiments, there is a gap between the first gear 320 or the stopper 330 and the wire 500. Can be specifically set according to the actual situation.

As shown in fig. 5 and 8, in some embodiments of the utility model, the transmission structure includes a reduction gearbox 610 and a transmission gear 620.

The output shaft of the driving device 400 is in transmission connection with the transmission gear 620 through the reduction gearbox 610, and the transmission gear 620 is meshed with the first gear 320, so that the transmission gear 620 can drive the first gear 320 to rotate in the rotating process, and the first gear 320 drives the limit disc 330 to rotate, so that the recovery or release of the wire 500, i.e. the wire winding or unwinding of the wire 500, is realized.

It can be understood that, in the present embodiment, the wire winding refers to winding the wire 500 outside the housing 100 onto the winding structure 300, so as to reduce the length of the wire 500 outside the housing 100, thereby being capable of raising the height of the lamp. In addition, paying-off means that the number of turns of the wire 500 wound on the winding structure 300 is reduced to increase the length of the wire 500 outside the housing 100, thereby being capable of raising the height of the lamp.

The axis of the transmission gear 620 is parallel to the axis of the first gear 320.

As shown in fig. 7 and 8, in some embodiments of the present utility model, the lifter includes an adjusting gear 700, the adjusting gear 700 is disposed at one side of the winding structure 300, the adjusting gear 700 is rotatably connected with the housing 100, and the adjusting gear 700 is meshed with the first gear 320, so that the first gear 320 can drive the adjusting gear 700 to rotate synchronously during rotation.

The axis of the adjusting gear 700 is parallel to the axis of the first gear 320.

Specifically, in this embodiment, the adjusting gear 700 is a unidirectional speed-reducing gear, so that the rotational speed of the first gear 320 can be reduced by the adjusting gear 700, so as to control the stability of the wire-releasing speed of the wire-winding structure 300 in the process of releasing the wire 500, and thus ensure the stability of the lamp in the process of lowering.

It should be noted that, in this embodiment, the unidirectional speed reducing gear includes a unidirectional bearing and a friction damping structure, and when the winding structure 300 is in the winding process, i.e. the lamp is in the ascending process, the unidirectional bearing is idle, and the friction damping structure has no damping effect on the unidirectional bearing.

When the winding structure 300 is in the paying-off process, that is, the lamp is in the descending process, the friction damping structure provides damping effect for the unidirectional bearing in the rotating process, so as to provide speed limiting effect for the rotation of the first gear 320, so that the winding structure 300 can be ensured to uniformly pay off, the lamp can be uniformly descended, the stability and the safety of the lamp in the descending process are ensured, and meanwhile, the noise of the lamp in the descending process can be reduced.

As shown in fig. 7, in some embodiments of the present utility model, the lifter includes a sensing assembly 800, and the sensing assembly 800 includes a control board 810, a first sensing switch 820, a second sensing switch 830, and a third sensing switch 840.

The first detection switch 820, the second detection switch 830, and the third detection switch 840 are disposed on the control board 810 at intervals, and are electrically connected to the control board 810, respectively.

In addition, the control board 810 is connected to the driving device 400 to control the start and stop of the driving device 400 and the rotation direction of the output shaft of the driving device 400 by the control board 810.

In this embodiment, the control board 810 is provided with a first guide hole 811, and the first guide hole 811 penetrates the control board 810 in the thickness direction of the control board 810.

Specifically, one end of the first guide hole 811 is adjacent to the first detection switch 820, and the other end of the first guide hole 811 is adjacent to the second detection switch 830, that is, the first guide hole 811 is located between the first detection switch 820 and the second detection switch 830.

When the first detection switch 820 or the second detection switch 830 is triggered, the driving device 400 is controlled to stop operating by the control board 810. When the third detection switch 840 is triggered, the output shaft of the driving device 400 is controlled to reversely rotate for a preset number of turns by the control board 810.

As shown in fig. 3, in some embodiments of the present utility model, the lifter includes a swing arm structure 900, the swing arm structure 900 is rotatably connected to the control board 810, one end of the swing arm structure 900 abuts against the wire 500, and the other end of the swing arm structure 900 is disposed between the first detection switch 820 and the second detection switch 830.

When the wire 500 outside the housing 100 extends to the first length, the swing arm structure 900 triggers the first detection switch 820, and controls the driving device 400 to stop running through the control board 810, so that the length of the wire 500 outside the housing 100 is maintained at the first length, thereby ensuring the stability of the lamp height.

It should be noted that, the first length in this embodiment refers to the maximum length of the wire 500 extending to the outside of the housing 100. I.e. the lowest height of the luminaire in the vertical direction.

When the wire 500 outside the housing 100 is contracted to a second length, the swing arm structure 900 activates the second detecting switch 830, and controls the driving device 400 to stop operating through the control board 810, so that the length of the wire 500 outside the housing 100 is maintained at the second length.

It should be noted that the second length in this embodiment refers to the shortest length of the wire 500 extending out of the housing 100. I.e. the maximum height of the luminaire in the vertical direction.

By providing the first detection switch 820 and the second detection switch 830 to provide the limiting and protecting functions for the ascending or descending process of the lamp, the wire 500 can be prevented from being broken due to excessive winding, and the safety of the lamp in the ascending or descending process is ensured.

In this embodiment, a gap is formed between the swing arm structure 900 and the winding structure 300 to ensure stability and smoothness of the swing arm structure 900 during the swing process.

As shown in fig. 3, in some embodiments of the present utility model, the swing arm structure 900 includes a swing arm 910, a pulley 920, a torsion spring 930, a first link 940, and a first feeler 950.

The swinging arm 910 is provided with a mounting opening 911 near one end of the winding structure 300, the pulley 920 is at least partially accommodated in the mounting opening 911, the pulley 920 is rotatably connected with the swinging arm 910, and the pulley 920 is abutted against the wire 500, so that the number of turns of the wire 500 in the annular channel 310 is changed during the contraction or paying-off process of the wire 500, and the pulley 920 can swing according to the change of the number of turns of the wire 500 in the annular channel 310, so that the pulley 920 is always abutted against the wire 500 during the extension or contraction process of the wire 500.

It will be appreciated that the pulley 920 can drive the other end of the swing arm 910 to swing synchronously while swinging. The pulley 920 is abutted against the wire 500, so that the friction between the pulley 920 and the wire 500 is reduced, the resistance to the wire 500 in the shrinking and paying-off process is reduced, and the smoothness of the wire 500 in the shrinking and paying-off process is ensured.

One end of the first connecting member 940 is disposed through the swing arm 910 and connected to the control board 810, and the swing arm 910 is rotatably connected to the first connecting member 940, so that the swing arm 910 rotates about the axis of the first connecting member 940. The first connector 940 may be any one or a combination of two or more of a bolt, a cylinder, and a cylinder.

In addition, the torsion spring 930 is sleeved on the first connecting member 940, and the torsion spring 930 is disposed between the swing arm 910 and the control board 810. Specifically, the torsion spring 930 has a first end 931 and a second end 932, where the first end 931 abuts against an end of the swing arm 910 near the pulley 920, so as to provide an elastic force to approach the winding structure 300 to an end of the swing arm 910 near the pulley 920 through the first end 931, thereby ensuring that the pulley 920 can always abut against the wire 500. The second end 932 is abutted against a boss 812 disposed at the bottom of the control board 810, so as to provide a limit support for the second end 932 through the boss 812, thereby ensuring the stability of the acting force of the first end 931 on the swinging arm 910.

Specifically, one end of the first feeler 950 is connected to one end of the swing arm 910 away from the pulley 920, and the other end of the first feeler 950 is disposed through the first guiding hole 811, and it is understood that the first feeler 950 is disposed between the first detecting switch 820 and the second detecting switch 830.

The first guide hole 811 is an arc-shaped hole, so that the swing arm 910 can make the first feeler 950 smooth and stable in moving in the first guide hole 811 during the swing. In addition, the first detection switch 820 or the second detection switch 830 can be triggered while the first feeler 950 moves in the first guide hole 811.

As shown in fig. 4, in some embodiments of the present utility model, the lifter includes an elastic limit structure 1000, the elastic limit structure 1000 is disposed in the accommodating cavity 110, and the elastic limit structure 1000 is connected to the power supply device 200 and is close to the through hole 120.

One end of the elastic limit structure 1000 abuts against the wire 500, and at this time, a space is provided between the elastic limit structure 1000 and the third detection switch 840.

In this embodiment, the elastic limit structure 1000 is configured to trigger the third detection switch 840 when the wire 500 is loose.

It should be noted that, for example, when the lamp collides against other obstacles on the table surface during the falling process, the wire 500 is loosened due to the fact that the wire is not subjected to the pull-down gravity of the lamp, so that the elastic limit structure 1000 abuts against and triggers the third detection switch 840 under the action of the elastic force, and the control panel 810 controls the driving device 400 to stop moving or controls the output end of the driving device 400 to reversely rotate, so as to shrink the wire 500, thereby lifting the lamp, and protecting the table surface, the lamp or other objects.

As shown in fig. 4 to 7, in some embodiments of the present utility model, the elastic limit structure 1000 includes a support plate 1010, a second feeler lever 1020, a drum 1030, a second connection member 1040, an elastic member 1050, and a limit post 1060.

The support plate 1010 is provided with a second guide hole 1011, one end of the second contact rod 1020 is inserted into the second guide hole 1011, the other end of the second contact rod 1020 is close to the third detection switch 840, and the second contact rod 1020 can move in the second guide hole 1011. It should be noted that, the second feeler lever 1020 can touch or abut against the third detection switch 840 during the moving process, so as to trigger the third detection switch 840.

In addition, the roller is rotatably sleeved on the second feeler lever 1020, that is, the roller can rotate relative to the second feeler lever 1020, and one side of the roller abuts against the wire 500, so as to reduce the resistance to the wire 500. One end of the second connecting member 1040 is rotatably connected to the second contact rod 1020, the other end of the second connecting member 1040 abuts against one end of the elastic member 1050, and the other end of the elastic member 1050 abuts against the limit post 1060, so that the elastic member 1050 provides an elastic force to the second contact rod 1020 towards the direction of the third detection switch 840.

It is understood that the elastic direction of the elastic member 1050 is the same as the extending direction of the second guide hole 1011.

In this embodiment, the second feeler lever 1020 can slide along the second guiding hole 1011, and when the second feeler lever 1020 triggers the third detection switch 840, the control board 810 can control the output end of the driving device 400 to reversely rotate so as to retract the wire 500, thereby lifting the lamp through the wire 500, and protecting the desktop, the lamp or other objects.

Further embodiments of the utility model provide a luminaire comprising a lifter as described in any of the embodiments above.

It should be noted that, the lamp includes the lifter structure and the beneficial effects thereof in any of the embodiments, and are not described in detail herein.

Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The above examples merely represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. A lifting device for a lifting machine, which comprises a lifting device, characterized by comprising the following steps:

the power supply devices are respectively connected with the shell and are accommodated in the accommodating cavity;

2. The lifter of claim 1, wherein the winding structure includes a first gear, a limit plate, and a connecting shaft;

3. The lifter according to claim 2, characterized in that the transmission structure comprises a reduction gearbox and a transmission gear;

4. The lifter according to claim 2, characterized in that it comprises an adjusting gear provided on one side of the winding structure, the adjusting gear being engaged with the first gear.

5. The lifter of claim 1, wherein the lifter includes a detection assembly comprising a control board, a first detection switch, a second detection switch, and a third detection switch;

6. The lifter according to claim 5, wherein the lifter includes a swing arm structure rotatably connected to the control board, one end of the swing arm structure being abutted to the wire, the other end of the swing arm structure being interposed between the first detection switch and the second detection switch;

7. The lifter of claim 6, wherein the swing arm structure includes a swing arm, a pulley, a torsion spring, a first connector, and a first feeler lever;

8. The lifter according to claim 6, characterized in that it comprises an elastic limit structure, which is provided in the housing cavity and is close to the through hole;

9. The lifter of claim 8, wherein the resilient limit structure comprises a support plate, a second feeler lever, a roller, a second connector, a resilient member, and a limit post;

10. A luminaire comprising a lifter according to any of claims 1 to 9.