CN215336153U

CN215336153U - Focusing device

Info

Publication number: CN215336153U
Application number: CN202120732405.XU
Authority: CN
Inventors: 杨勉; 傅高武; 彭岳棋
Original assignee: Hunan Minghe Event Technology Development Co ltd
Current assignee: Hunan Minghe Event Technology Development Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-28
Anticipated expiration: 2031-04-09

Abstract

The utility model provides a focusing device, which comprises a lamp shell, a lens assembly, a sliding assembly, a driving motor and a belt wheel mechanism, wherein the lens assembly is arranged on the lamp shell; a lens assembly including a mounting bracket disposed in the lamp housing and a first lens disposed on the mounting bracket; the sliding assembly comprises a guide piece arranged in the lamp shell and a sliding piece arranged on the guide piece, and the sliding piece is connected with the mounting bracket; a driving motor disposed at one side of the guide; band pulley mechanism sets up the below of installing support includes the action wheel that sets up along the guide and follows the driving wheel to and connect the action wheel and follow the hold-in range of driving wheel, the action wheel sets up driving motor is last, the hold-in range with installing support connects. Therefore, the driving motor and the belt wheel mechanism can drive the lens assembly to slide along the sliding assembly, and automatic focusing is realized.

Description

Focusing device

Technical Field

The utility model relates to the field of LED spot lamps, in particular to a focusing device.

Background

The spotlight has the advantages of high luminous intensity, high brightness, long projection distance of irradiated light, obvious range, strong light directivity and strong light output, can ensure that the edge of an object to be irradiated is clear and the outline is distinct, is an ideal lamp with local light projection effect, and is generally used as a lamp for studio and theater performance.

With the rapid development of LED technology, LED light sources are widely applied to movie and television lighting fixtures, and LED spotlights are gradually emerging. In the patent with application number 201220706915.0, named high-power LED threaded spotlight, the adjustment of the focal length of the lamp is realized through a knob, specifically, the knob is arranged on a lamp shell, a gear is arranged on the knob, and a rack matched with the gear is arranged on a lamp holder nested with the lamp shell, so that manual focusing can be realized, but automatic focusing cannot be performed.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model aims to provide an LED spotlight and a focusing device.

The present invention provides a focusing apparatus, comprising:

a lamp housing;

a lens assembly including a mounting bracket disposed in the lamp housing and a first lens disposed on the mounting bracket;

the sliding assembly comprises a guide piece arranged in the lamp shell and a sliding piece arranged on the guide piece, and the sliding piece is connected with the mounting bracket;

a driving motor disposed at one side of the guide;

band pulley mechanism sets up the below of installing support includes the action wheel that sets up along the guide and follows the driving wheel to and connect the action wheel and follow the hold-in range of driving wheel, the action wheel sets up driving motor is last, the hold-in range with installing support connects.

Preferably, the lens assembly further comprises a focusing base horizontally arranged, and two ends of the focusing base are respectively and fixedly connected with the lamp shell;

the driving motor is fixedly arranged on the lower surface of the focusing base, a rotating shaft of the driving motor extends out of the upper surface of the focusing base, and the driving wheel is arranged on the rotating shaft;

the belt wheel mechanism further comprises an installation shaft arranged on the focusing base, the installation shaft is parallel to the rotating shaft, and the driven wheel is rotatably connected with the rotating shaft.

Preferably, the lamp housing comprises a bottom plate, two side plates arranged on the bottom plate, a connecting piece arranged at the upper end of each side plate, and a cover plate connected with the two connecting pieces.

Preferably, the sliding assembly further comprises two first mounting seats fixedly arranged on the inner wall of the lamp shell and two second mounting seats arranged on the focusing base; the focusing device comprises two guide pieces, wherein two ends of one guide piece are respectively arranged in the first mounting seat, and two ends of the other guide piece are respectively arranged in the second mounting seat; the connecting piece is provided with a groove in sliding connection with the first mounting seat.

Preferably, a through hole is formed in the mounting support, a first lens is arranged at the through hole, and an annular lens pressing piece is further arranged on the mounting support.

Preferably, the guide part comprises a guide rod, the sliding part comprises a linear bearing matched with the guide rod, the mounting bracket is folded towards one side to form a connecting plate, and the synchronous belt is fixedly connected with the connecting plate.

The driving motor and the belt wheel mechanism are arranged in the lamp, so that the conveying belt is fixedly connected with the lens assembly, and the lens assembly can be driven by the driving motor and the belt wheel mechanism to slide along the sliding assembly, so that automatic focusing is realized.

Drawings

FIG. 1 is a schematic structural diagram of an LED spotlight according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a focusing apparatus in the embodiment of FIG. 1.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the utility model. All falling within the scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a focusing apparatus, including a lamp housing, a lens assembly, a sliding assembly, a driving motor 41 and a pulley mechanism; the lamp shell comprises a bottom plate 11, two side plates 12 arranged on the bottom plate 11, a connecting piece 13 arranged at the upper end of each side plate 12 and a cover plate 14 connecting the two connecting pieces 13.

The sliding assembly comprises a guide piece 31 arranged in the lamp shell and a sliding piece 32 arranged on the guide piece 31, and the sliding piece 32 is connected with the mounting bracket 21; the sliding assembly further comprises two first mounting seats 33 fixedly arranged on the inner wall of the lamp shell and two second mounting seats 34 arranged on the focusing base; the focusing device comprises two guide members 31, wherein two ends of one guide member 31 are respectively arranged in a first mounting seat 33, and two ends of the other guide member 31 are respectively arranged in a second mounting seat 34; the connecting piece 13 is provided with a groove which is slidably connected with the first mounting seat 33. The guide piece 31 comprises a guide rod, the sliding piece 32 comprises a linear bearing matched with the guide rod, the mounting bracket 21 is folded towards one side to form a connecting plate 21a, and the synchronous belt is fixedly connected with the connecting plate 21 a.

The lens assembly further comprises a focusing base 24 which is horizontally arranged, and two ends of the focusing base 24 are respectively fixedly connected with the lamp shell; the lens assembly comprises a mounting bracket 21 arranged in the lamp shell and a first lens 22 arranged on the mounting bracket 21; the lens holder is characterized in that a through hole is formed in the mounting support 21, a first lens 22 is arranged at the through hole, and an annular lens pressing sheet 23 is further arranged on the mounting support 21.

The pulley mechanism is arranged below the mounting bracket 21 and comprises a driving wheel 42 and a driven wheel 43 arranged along the guide piece 31, and a synchronous belt 44 connecting the driving wheel 42 and the driven wheel 43, wherein the driving wheel 42 is arranged on the driving motor 41, and the synchronous belt 44 is connected with the mounting bracket 21. Specifically, the driving motor 41 is fixedly arranged on the lower surface of the focusing base 24, a rotating shaft of the driving motor extends out of the upper surface of the focusing base 24, and the driving wheel 42 is arranged on the rotating shaft; the belt wheel mechanism further comprises an installation shaft arranged on the focusing base 24, the installation shaft is parallel to the rotating shaft, and the driven wheel 43 is rotatably connected with the rotating shaft.

According to the utility model, the driving motor 41 and the belt wheel mechanism are arranged in the lamp, so that the conveying belt is fixedly connected with the lens assembly, and the driving motor 41 and the belt wheel mechanism can drive the lens assembly to slide along the sliding assembly, thereby realizing automatic focusing.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

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

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the utility model is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.

Claims

1. A focusing apparatus, comprising:

a lamp housing;

a driving motor disposed at one side of the guide;

2. The focusing device of claim 1, wherein the lens assembly further comprises a horizontally disposed focusing base, and two ends of the focusing base are respectively fixedly connected with the lamp housing;

3. The focusing device of claim 2, wherein the lamp housing comprises a bottom plate, two side plates disposed on the bottom plate, a connecting member disposed at an upper end of the side plates, and a cover plate connecting the two connecting members.

4. The focusing device of claim 3, wherein the sliding assembly further comprises two first mounting seats fixedly arranged on the inner wall of the lamp housing and two second mounting seats arranged on the focusing base; the focusing device comprises two guide pieces, wherein two ends of one guide piece are respectively arranged in the first mounting seat, and two ends of the other guide piece are respectively arranged in the second mounting seat; the connecting piece is provided with a groove in sliding connection with the first mounting seat.

5. The focusing device of claim 1, wherein the mounting bracket is provided with a through hole, the through hole is provided with the first lens, and the mounting bracket is further provided with an annular pressure lens.

6. The focusing device of claim 1, wherein the guide member comprises a guide rod, the sliding member comprises a linear bearing adapted to the guide rod, the mounting bracket is folded to one side to form a connecting plate, and the synchronous belt is fixedly connected to the connecting plate.