Lifter and lamp

Abstract

The utility model provides a lifter and a lamp, and belongs to the technical field of lighting equipment. The lifter comprises a shell, a driving device, a winding structure, a power supply device and a wire. A containing cavity is defined by the shell, and a through hole communicated with the containing cavity is formed in one side of the shell; 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 is rotationally connected with the power supply device to define an annular channel; the output end of the driving device is in transmission connection with the winding structure through the transmission structure; at least part of the wire is contained in the annular channel, the wire is wound around 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. According to the lifter, the height of the lamp is adjusted by adjusting the length of the wire located outside the shell, so that the requirements of a user for the height and the light effect of the lamp are met, meanwhile, the lamp is easy to clean, and the use experience feeling of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting equipment, in particular to a lifter and a lamp. Background Art

[0002] After the chandelier lamps on the market are installed at present, the installation height is fixed at a certain position. In some specific installation environments or certain occasions, such as when the ceiling at home is very high, sometimes it is necessary to adjust the more comfortable lighting effect by the height of the lamp. If it is necessary to change the height of the lamp, professional personnel need to climb a ladder to operate, which not only increases the adjustment difficulty, but also has certain potential safety hazards. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and provide a lifter and a lamp.

[0004] In a first aspect, the utility model provides a lifter, including:

[0005] A housing that defines a receiving cavity, and a through hole communicating with the receiving cavity is provided on one side of the housing;

[0006] A power supply device, connected to the housing and received in the receiving cavity;

[0007] A winding structure, disposed in the receiving cavity, the winding structure is rotatably connected to the power supply device, and the winding structure defines an annular channel;

[0008] A driving device, an output end of the driving device is in transmission connection with the winding structure through a transmission structure;

[0009] A wire, at least part of which is received 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 passes through the through hole and is used for connecting to a lamp.

[0010] In some embodiments, the winding structure includes a first gear, a limiting disk and a connecting shaft;

[0011] One end of the connecting shaft passes through the first gear and the limiting disk, and the other end of the connecting shaft is rotatably connected to the power supply device;

[0012] There is a gap between the first gear and the limiting disk to form the annular channel between the first gear, the limiting disk and the connecting shaft.

[0013] In some embodiments, the transmission structure includes a reduction box and a transmission gear;

[0014] The output shaft of the driving device is connected to the transmission gear through the reduction gear box, and the transmission gear is meshed with the first gear.

[0015] In some embodiments, the lifter includes an adjusting gear, which is disposed on one side of the winding structure and is engaged with the first gear.

[0016] In some embodiments, the lifter includes a detection assembly, the detection assembly including a control board, a first detection switch, a second detection switch, and a third detection switch;

[0017] The first detection switch, the second detection switch and the third detection switch are arranged on the control board at intervals;

[0018] The control board is connected to 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.

[0019] In some embodiments, the lifter includes a swing arm structure, the swing arm structure is rotatably connected to the control board, one end of the swing arm structure abuts against the wire, and the other end of the swing arm structure is positioned between the first detection switch and the second detection switch;

[0020] When the wire outside the shell extends to a first length, the swing arm structure triggers the first detection switch; when the wire outside the shell extends to a second length, the swing arm structure triggers the second detection switch.

[0021] In some embodiments, the swing arm structure includes a swing arm, a pulley, a torsion spring, a first connecting member, and a first contact rod;

[0022] The swing arm is provided with a mounting opening at one end close to the winding structure, the pulley is at least partially received in the mounting opening and is rotatably connected to the swing arm, and the pulley abuts against the wire;

[0023] One end of the first connecting member is passed through the swing arm and connected to the control board, and the swing arm is rotatably connected to the first connecting member;

[0024] The torsion spring is sleeved on the first connecting member, and has a first end and a second end. The first end abuts against an end of the swing arm close to the pulley, and the second end abuts against a boss provided at the bottom of the control board.

[0025] One end of the first touch rod is connected to the end of the swing arm away from the pulley, and the other end of the first touch rod is inserted into the first guide hole.

[0026] In some embodiments, the lifter includes an elastic limiting structure, which is arranged in the accommodating cavity and close to the through hole;

[0027] One end of the elastic limiting structure abuts against the wire, and the elastic limiting structure is configured to trigger the third detection switch when the wire is slack.

[0028] In some embodiments, the elastic limiting structure includes a support plate, a second contact rod, a roller, a second connecting member, an elastic member and a limiting post;

[0029] The support plate is provided with a second guiding hole, one end of the second contact rod passes through the second guiding hole, and the other end of the second contact rod is close to the third detection switch;

[0030] The roller is rotatably sleeved on the second contact rod, one end of the second connecting member is rotatably connected to the second contact rod, the other end of the second connecting member abuts against one end of the elastic member, and the other end of the elastic member abuts against the limiting post;

[0031] The second contact rod can slide along the second guiding hole and trigger the third detection switch.

[0032] In a second aspect, the present utility model provides a lamp, including the above-mentioned lifter.

[0033] The embodiments of the present utility model have the following advantages: By driving the output end of the driving device to be in transmission connection with the wire winding structure through a transmission structure, when the driving device operates, the output end of the driving device drives the transmission structure to operate, and the transmission structure drives the wire winding structure to rotate, so as to adjust the length of the wire located outside the housing, thereby adjusting the height of the lamp, so as to meet the user's requirements for the height of the lamp and the lighting effect. At the same time, it is also easy to clean the lamp to improve the user's experience.

[0034] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0036] Figure 1Shows a schematic structural view of a lifter provided by some embodiments of the present utility model from one perspective;

[0037] Figure 2 Shows a schematic structural view of a lifter provided by some embodiments of the present utility model from another perspective;

[0038] Figure 3 Shows Figure 2 A cross-sectional view of the B-B part in

[0039] Figure 4 Shows Figure 3 An enlarged view of part C in

[0040] Figure 5 Shows a schematic structural view of the interior of a lifter provided by some embodiments of the present utility model from one perspective;

[0041] Figure 6 Shows a schematic structural view of the interior of a lifter provided by some embodiments of the present utility model from another perspective;

[0042] Figure 7 Shows Figure 6 An enlarged view of part D in

[0043] Figure 8 Shows schematic structural views of other perspectives of the interior of a lifter provided by some embodiments of the present utility model.

[0044] Main element symbol description:

[0045] 100 - Housing; 110 - Accommodation cavity; 120 - Through hole; 200 - Power supply device; 300 - Winding structure; 310 - Annular channel; 400 - Driving device; 500 - Conducting wire; 320 - First gear; 330 - Limiting disc; 340 - Connecting shaft; 600 - Transmission structure; 610 - Reduction gearbox; 620 - Transmission gear; 700 - Adjusting gear; 800 - Detection component; 810 - Control board; 820 - First detection switch; 830 - Second detection switch; 840 - Third detection switch; 811 - First guiding hole; 900 - Swing arm structure; 910 - Swing arm; 920 - Pulley; 930 - Torsion spring; 940 - First connecting piece; 950 - First contact rod; 911 - Mounting opening; 931 - First end; 932 - Second end; 812 - Boss; 1000 - Elastic limiting structure; 1010 - Support plate; 1020 - Second contact rod; 1030 - Drum; 1040 - Second connecting piece; 1050 - Elastic member; 1060 - Limiting post; 1011 - Second guiding hole. Detailed implementation manners

[0046] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0048] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise clearly and specifically defined.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this template herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0051] As Figures 1 to 5 shown, some embodiments of the present utility model provide a lifter, which is mainly applied to lamps to facilitate the adjustment of the height of the lamps, so as to meet the different needs of users for light and brightness and improve the user experience.

[0052] The lifter includes a housing 100, a power supply device 200, a winding structure 300, a driving device 400, and a wire 500.

[0053] Among them, the shape of the housing 100 can be any one or a combination of two or more of a cylindrical shape, a spherical shape, an ellipsoidal shape, a polygonal prism shape, and a triangular pyramid shape, which can be specifically set according to the actual situation.

[0054] In this embodiment, taking the housing 100 as a cylinder as an example, the following specific description is given.

[0055] Among them, the housing 100 defines a receiving cavity 110, which is a cylindrical cavity. A through hole 120 communicating with the receiving cavity 110 is provided on one side in the axial direction of the housing 100, and the axis of the through hole 120 is parallel or coincident with the axis of the housing 100.

[0056] In addition, the power supply device 200 is connected to the housing 100, and the power supply device 200 is received in the receiving cavity 110. The connection manner between the power supply device 200 and the housing 100 includes any one of bolt connection, clamping connection, bonding connection, magnetic attraction connection, or integral molding, which can be specifically set according to the actual situation to supply power to the driving device 400 through the power supply device 200.

[0057] In this embodiment, the winding structure 300 is arranged in the receiving cavity 110, and the winding structure 300 is rotationally connected to the power supply device 200, that is, the winding structure 300 can rotate relative to the power supply device 200.

[0058] It should be noted that there is a gap between the winding structure 300 and 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 the stability and smoothness of the winding structure 300 during rotation.

[0059] Furthermore, the winding structure 300 defines an annular channel 310, and the axis of the annular channel 310 coincides with the axis of rotation of the winding structure 300.

[0060] In addition, the output end of the driving device 400 is in transmission connection with the winding structure 300 through a transmission structure 600, so that when the driving device 400 operates, the output end of the driving device 400 drives the transmission structure 600 to operate, and drives the winding structure 300 to rotate through the transmission structure 600.

[0061] Specifically, the wire 500 is wound around the winding structure 300, and at least part of the wire 500 is received in the annular channel 310. One end of the wire 500 is connected to the power supply device 200, and the other end of the wire 500 passes through the through hole 120 and is used to connect to a lamp, so that during the rotation of the winding structure 300, the length of the wire 500 located outside the housing 100 can be adjusted, thereby adjusting the height of the lamp to meet the user's requirements for the height of the lamp and the lighting effect. At the same time, it is also easy to clean the lamp to improve the user's experience.

[0062] 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 gradually decreases, and the length of the wire 500 located outside the housing 100 gradually increases, so that the height of the lamp in the vertical direction can be reduced; when the winding structure 300 rotates in the second direction, the length of the wire 500 wound around the winding structure 300 gradually increases, and the length of the wire 500 located outside the housing 100 gradually decreases, so that the height of the lamp in the vertical direction can be increased to realize the adjustment of the height of the lamp. Among them, if the first direction is the clockwise direction, the second direction is the counterclockwise direction; if the first direction is the counterclockwise direction, the second direction is the clockwise direction.

[0063] It should be noted that during the process of adjusting the length of the wire 500, one end of the wire 500 is always electrically connected to the power supply device 200, so that the lamp can be lit at any position.

[0064] As Figure 8 shown, in some embodiments of the present invention, the winding structure 300 includes a first gear 320, a limiting disk 330 and a connecting shaft 340.

[0065] Among them, one end of the connecting shaft 340 passes through the first gear 320 and the limiting disk 330, and the first gear 320 and the limiting disk 330 are coaxially connected through the connecting shaft 340. At the same time, the other end of the connecting shaft 340 is rotatably connected to the power supply device 200, so that the first gear 320 and the limiting disk 330 can rotate relative to the power supply device 200.

[0066] In addition, there is a gap between the first gear 320 and the limiting disk 330, and the distance between the first gear 320 and the limiting disk 330 can be specifically set according to the actual situation to form the annular channel 310 between the first gear 320, the limiting disk 330 and the connecting shaft 340, so that part of the wire 500 can be received in the annular channel 310, thereby providing a limiting effect on the wire 500 by the first gear 320 and the limiting disk 330 to ensure the stability and smoothness of the wire 500 during the winding process and ensure the orderliness of the wire 500 winding.

[0067] In some embodiments, there is contact between the first gear 320 and the limiting disc 330 and the wire 500. In other embodiments, there is a gap between the first gear 320 or the limiting disc 330 and the wire 500. This can be specifically set according to the actual situation.

[0068] Such as Figure 5 and Figure 8 As shown, in some embodiments of the present utility model, the transmission structure includes a reduction gearbox 610 and a transmission gear 620.

[0069] Wherein, the output shaft of the driving device 400 is in transmission connection with the transmission gear 620 through the reduction gearbox 610. By meshing the transmission gear 620 with the first gear 320, when the transmission gear 620 rotates, it can drive the first gear 320 to rotate, and thus drive the limiting disc 330 to rotate through the first gear 320, so as to realize the recycling or release of the wire 500, that is, the winding or unwinding of the wire 500.

[0070] It can be understood that in this embodiment, winding the wire means winding the wire 500 outside the housing 100 onto the winding structure 300 to reduce the length of the wire 500 outside the housing 100, thereby being able to increase the height of the lamp. Additionally, unwinding the wire means reducing the number of turns of the wire 500 wound around the winding structure 300 to increase the length of the wire 500 outside the housing 100, thereby being able to increase the height of the lamp.

[0071] It should be noted that the axis of the transmission gear 620 is parallel to the axis of the first gear 320.

[0072] Such as Figure 7 and Figure 8 As shown, in some embodiments of the present utility model, the lifter includes an adjusting gear 700. The adjusting gear 700 is arranged on one side of the winding structure 300. The adjusting gear 700 is rotatably connected to the housing 100, and the adjusting gear 700 is meshed with the first gear 320, so that when the first gear 320 rotates, it can drive the adjusting gear 700 to rotate synchronously.

[0073] It should be noted that the axis of the adjusting gear 700 is parallel to the axis of the first gear 320.

[0074] Specifically, in this embodiment, the adjusting gear 700 is a one-way speed reduction gear, so as to reduce the rotation speed of the first gear 320 through the adjusting gear 700, thereby controlling the stability of the wire unwinding speed during the process of the winding structure 300 releasing the wire 500, and thus ensuring the stability of the lamp during the descending process.

[0075] It should be noted that in this embodiment, the one-way speed reduction gear includes a one-way bearing and a friction damping structure. When the winding structure 300 is taking up the wire, that is, when the lamp is rising, the one-way bearing rotates idly and the friction damping structure has no damping effect on the one-way bearing.

[0076] When the winding structure 300 is paying out the wire, that is, when the lamp is descending, the friction damping structure provides a damping effect on the one-way bearing during rotation, thereby providing a speed limiting effect on the rotation of the first gear 320, so as to ensure that the winding structure 300 can pay out the wire evenly, so that the lamp can descend at a uniform speed, ensuring the stability and safety of the lamp during the descending process, and at the same time reducing the noise when the lamp descends.

[0077] As Figure 7 shown, in some embodiments of the present utility model, the lifter includes a detection assembly 800, and the detection assembly 800 includes a control board 810, a first detection switch 820, a second detection switch 830, and a third detection switch 840.

[0078] Among them, the first detection switch 820, the second detection switch 830, and the third detection switch 840 are arranged at intervals on the control board 810 and are respectively electrically connected to the control board 810.

[0079] In addition, the control board 810 is connected to the driving device 400 to control the start, stop of the driving device 400 and the rotation direction of the output shaft of the driving device 400 through the control board 810.

[0080] In this embodiment, the control board 810 is provided with a first guiding hole 811, and the first guiding hole 811 penetrates through the control board 810 along the thickness direction of the control board 810.

[0081] Specifically, one end of the first guiding hole 811 is adjacent to the first detection switch 820, and the other end of the first guiding hole 811 is adjacent to the second detection switch 830, that is, the first guiding hole 811 is located between the first detection switch 820 and the second detection switch 830.

[0082] It should be noted that when the first detection switch 820 or the second detection switch 830 is triggered, the driving device 400 is controlled to stop running through the control board 810. When the third detection switch 840 is triggered, the output shaft of the driving device 400 is controlled to rotate in the reverse direction by a preset number of turns through the control board 810.

[0083] As Figure 3As shown, 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 placed between the first detection switch 820 and the second detection switch 830.

[0084] 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 operating 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 height of the lamp.

[0085] It should be noted that the first length described in this embodiment refers to the maximum length that the wire 500 extends out of the housing 100. That is, the lowest height of the lamp in the vertical direction.

[0086] When the wire 500 outside the housing 100 shrinks to the second length, the swing arm structure 900 triggers the second detection 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.

[0087] It should be noted that the second length described in this embodiment refers to the shortest length that the wire 500 extends out of the housing 100. That is, the maximum height of the lamp in the vertical direction.

[0088] By setting the first detection switch 820 and the second detection switch 830 to provide a limiting and protective effect during the rising or falling process of the lamp, it is possible to avoid the wire 500 from being overly wound and breaking, and ensure the safety of the lamp during the rising or falling process.

[0089] In this embodiment, there is a gap between the swing arm structure 900 and the winding structure 300 to ensure the stability and smoothness of the swing arm structure 900 during the swinging process.

[0090] As Figure 3 shown, 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 connecting member 940, and a first contact rod 950.

[0091] Among them, an installation opening 911 is provided at one end of the swing arm 910 close to the winding structure 300. At least a part of the pulley 920 is received in the installation opening 911. The pulley 920 is rotatably connected to the swing arm 910. By abutting the pulley 920 against the wire 500, when the wire 500 is contracted or payed out, the number of turns of the wire 500 in the annular channel 310 changes, so that the pulley 920 can swing according to the change in the number of turns of the wire 500 in the annular channel 310. Thus, during the elongation or contraction of the wire 500, the pulley 920 always abuts against the wire 500.

[0092] It can be understood that when the pulley 920 swings, it can drive the other end of the swing arm 910 to swing synchronously. By abutting the pulley 920 against the wire 500, the friction between the pulley 920 and the wire 500 is reduced, thereby reducing the resistance to the wire 500 during contraction and pay-out, and thus ensuring the smoothness of the wire 500 during contraction and pay-out.

[0093] Among them, one end of the first connecting member 940 passes through the swing arm 910 and is 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 connecting member 940 can be any one or a combination of two or more of a bolt, a cylinder, and a cylinder body.

[0094] In addition, the torsion spring 930 is sleeved on the first connecting member 940, and the torsion spring 930 is arranged 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. The first end 931 abuts against one end of the swing arm 910 close to the pulley 920, so as to provide an elastic force towards the winding structure 300 to the end of the swing arm 910 close to the pulley 920 through the first end 931, thus ensuring that the pulley 920 can always abut against the wire 500. The second end 932 is abutted against a boss 812 arranged at the bottom of the control board 810 to provide a limiting and supporting effect on the second end 932 through the boss 812, thereby ensuring the stability of the acting force of the first end 931 on the swing arm 910.

[0095] Specifically, one end of the first contact rod 950 is connected to the end of the swing arm 910 facing away from the pulley 920, and the other end of the first contact rod 950 passes through the first guide hole 811. It can be understood that the first contact rod 950 is arranged between the first detection switch 820 and the second detection switch 830.

[0096] It should be noted that the first guiding hole 811 is an arc-shaped hole, so that during the swinging process of the swinging arm 910, the smoothness and stability of the first contact rod 950 during its movement in the first guiding hole 811 can be ensured. In addition, when the first contact rod 950 moves in the first guiding hole 811, it can trigger the first detection switch 820 or the second detection switch 830.

[0097] As Figure 4 shown, in some embodiments of the present invention, the lifter includes an elastic limiting structure 1000, the elastic limiting structure 1000 is disposed in the accommodating cavity 110, the elastic limiting structure 1000 is connected to the power supply device 200 and is close to the through hole 120.

[0098] Wherein, one end of the elastic limiting structure 1000 abuts against the wire 500. At this time, there is a gap between the elastic limiting structure 1000 and the third detection switch 840.

[0099] In this embodiment, the elastic limiting structure 1000 is configured to trigger the third detection switch 840 when the wire 500 is slack.

[0100] It should be noted that, for example, when the lamp collides with other obstacles on the table during the descending process, the wire 500 starts to loosen due to the lack of the downward pulling gravity of the lamp, so that the elastic limiting structure 1000 abuts against and triggers the third detection switch 840 under the action of the elastic force. Then, the control board 810 controls the driving device 400 to stop moving or controls the output end of the driving device 400 to rotate in the reverse direction to contract the wire 500, thereby lifting the lamp, so as to protect the table, the lamp or other objects.

[0101] As Figures 4 to 7 shown, in some embodiments of the present invention, the elastic limiting structure 1000 includes a support plate 1010, a second contact rod 1020, a roller 1030, a second connecting member 1040, an elastic member 1050 and a limiting post 1060.

[0102] Wherein, the support plate 1010 is provided with a second guiding hole 1011. One end of the second contact rod 1020 passes through the second guiding hole 1011, and the other end of the second contact rod 1020 is close to the third detection switch 840. The second contact rod 1020 can move in the second guiding hole 1011. It should be noted that during the movement of the second contact rod 1020, it can touch or abut against the third detection switch 840, thereby triggering the third detection switch 840.

[0103] In addition, the roller is rotatably sleeved on the second contact rod 1020, that is, the roller can rotate relative to the second contact rod 1020, and one side of the roller abuts against the wire 500 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 limiting post 1060, so as to provide an elastic force in the direction of the third detection switch 840 for the second contact rod 1020 through the elastic member 1050.

[0104] It can be understood that the elastic force direction of the elastic member 1050 is the same as the extending direction of the second guiding hole 1011.

[0105] In this embodiment, the second contact rod 1020 can slide along the second guiding hole 1011. When the second contact rod 1020 triggers the third detection switch 840, the control board 810 can control the output end of the driving device 400 to rotate in the reverse direction to contract the wire 500, so as to lift the lamp through the wire 500, thereby forming a protective effect on the desktop, the lamp or other objects.

[0106] Some other embodiments of the present utility model provide a lamp, including the lifter described in any one of the above embodiments.

[0107] It should be noted that the lamp includes the structure of the lifter described in any one of the above embodiments and the beneficial effects produced thereby, which will not be elaborated herein one by one.

[0108] In all the examples shown and described here, any specific value should be construed as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0109] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0110] The above-described embodiments merely represent several implementation manners of the present utility model. Their descriptions are relatively specific and detailed, but should not be construed as a limitation to the scope of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A lifter, characterized in that: Comprising: A housing that defines a receiving cavity, and a through hole communicating with the receiving cavity is provided on one side of the housing; A power supply device, which is respectively connected to the housing and is received in the receiving cavity; A winding structure, which is arranged in the receiving cavity, and the winding structure is rotatably connected to the power supply device. The winding structure defines an annular channel; A driving device, and an output end of the driving device is in transmission connection with the winding structure through a transmission structure; A wire, at least part of which is received 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 passes through the through hole and is used for connecting to a lamp.

2. The lifter according to claim 1, wherein: The winding structure includes a first gear, a limiting disk and a connecting shaft; One end of the connecting shaft passes through the first gear and the limiting disk, and the other end of the connecting shaft is rotatably connected to the power supply device; There is a gap between the first gear and the limiting disk to form the annular channel between the first gear, the limiting disk and the connecting shaft.

3. The lifter according to claim 2, characterized in that The transmission structure includes a reduction box and a transmission gear; An output shaft of the driving device is in transmission connection with the transmission gear through the reduction box, and the transmission gear meshes with the first gear.

4. The lifter according to claim 2, wherein: The lifter includes an adjusting gear, the adjusting gear is arranged on one side of the winding structure, and the adjusting gear meshes with the first gear.

5. The lifter according to claim 1, characterized in that, The lifter includes a detection component, and the detection component includes 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 to the driving device, and the control board is provided with a first guiding hole, one end of the first guiding hole is adjacent to the first detection switch, and the other end of the first guiding hole is adjacent to the second detection switch.

6. The lifter according to claim 5, characterized in that The lifter includes a swing arm structure, the swing arm structure is rotatably connected to the control board, one end of the swing arm structure abuts against the wire, and the other end of the swing arm structure is placed between the first detection switch and the second detection switch; When the wire outside the housing extends to a first length, the swing arm structure triggers the first detection switch, and when the wire outside the housing shrinks to a second length, the swing arm structure triggers the second detection switch.

7. The lifter according to claim 6, characterized in that The swing arm structure includes a swing arm, a pulley, a torsion spring, a first connecting piece and a first contact rod; One end of the swing arm close to the winding structure is provided with a mounting opening, at least part of the pulley is received in the mounting opening and is rotatably connected to the swing arm, and the pulley abuts against the wire; One end of the first connecting piece passes through the swing arm and is connected to the control board, and the swing arm is rotatably connected to the first connecting piece; The torsion spring is sleeved on the first connecting piece, the torsion spring has a first end and a second end, the first end abuts against one end of the swing arm close to the pulley, and the second end abuts against a boss arranged at the bottom of the control board; One end of the first touch rod is connected to the end of the swing arm away from the pulley, and the other end of the first touch rod is inserted into the first guide hole.

8. The lifter according to claim 6, wherein: The lifter includes an elastic limiting structure, which is arranged in the accommodating cavity and close to the through hole; One end of the elastic limiting structure abuts against the wire, and the elastic limiting structure is configured to trigger the third detection switch when the wire is loose.

9. The lifter according to claim 8, wherein, The elastic limiting structure includes a support plate, a second contact rod, a roller, a second connecting member, an elastic member and a limiting column; The support plate is provided with a second guide hole, one end of the second touch rod is passed through the second guide hole, and the other end of the second touch rod is close to the third detection switch; The roller is rotatably sleeved on the second touch rod, one end of the second connecting member is rotatably connected to the second touch rod, the other end of the second connecting member abuts against one end of the elastic member, and the other end of the elastic member abuts against the limiting column; The second touch rod can slide along the second guide hole and trigger the third detection switch.

10. A lighting fixture, characterized in that, The invention comprises the lifter according to any one of claims 1 to 9.

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