CN214948817U

CN214948817U - Light zooming structure

Info

Publication number: CN214948817U
Application number: CN202121136811.6U
Authority: CN
Inventors: 朱峰; 黄星维; 朱志青; 杨林; 杨海涛
Original assignee: Longhorn Intelligent Tech Co ltd
Current assignee: Longhorn Intelligent Tech Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-30
Anticipated expiration: 2031-05-25

Abstract

The application provides a light structure of zooming, including the casing, set up lens device on the casing, focusing device and be located the light source of casing, focusing device including rotationally install in the rotation driving part of casing and with rotation driving part transmission fit's straight line feeding portion, the light source setting is in the straight line feeding portion and face the lens device, can drive straight line feeding portion when rotation driving part is rotatory along being close to or keeping away from the direction linear motion of lens device. This light zooms structure turns into the linear motion of straight line feeding portion with circumferencial direction's rotary motion, has reduced the required linear motion direction's of in-process of zooming reservation stroke length, has not only reduced the whole length of light zooms structure, has reduced manufacturing cost, but also has the advantage that the regulating mode is simple, convenient to use.

Description

Light zooming structure

Technical Field

The application belongs to the technical field of lighting equipment, more specifically says, relates to light structure of zooming.

Background

With the improvement of physical life, people's demand for lighting devices in life is increasing. In the market, various lamps are in endless. Among many lighting fixtures, a fixture with a focusing function is popular among consumers. The lamp can change the distance from the zoom lens to the lamp wick by adjusting the position of the zoom lens, so that a bright and comfortable illumination light area is obtained. However, such a lamp is also accompanied by the following problems in use: when the zoom lens or the lamp wick is pushed to translate, the moving resistance is large, and the adjustment is inconvenient; and because the distance from the zoom lens to the lamp wick needs to be changed, a certain adjusting length needs to be reserved for the lamp, so that the zoom lens and the lamp wick can move conveniently, but the adjusting length is easy to increase the length of the lamp, and the volume is increased. Not only occupies a large use space, but also increases the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a light structure of zooming to the technical problem who zooms and adjust inconvenience, length overlength, occupation space that exists among the prior art is solved.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a light structure of zooming, including the casing, set up in lens device, focusing device on the casing and being located light source in the casing, focusing device including rotationally install in the rotation driving part of casing and with rotation driving part transmission fit's straight line feeds the portion, the light source sets up on the straight line feeds the portion and faces the lens device, can drive when rotation driving part is rotatory straight line feeds the portion along being close to or keeping away from the direction linear motion of lens device.

As a further improvement of the above technical solution:

optionally, the rotary driving part is a rotary table, the linear feeding part is a sleeve slidably mounted inside the housing, the light source is mounted at an end of the sleeve, a side wall of the sleeve is provided with an inclined groove axially offset along the sleeve, and the rotary table is connected with a driving part located in the inclined groove.

Optionally, the focusing apparatus includes an elastomeric buffer disposed between the sleeve and the housing.

Optionally, the focusing device further comprises a driving seat connected to the turntable, and the driving piece is a driving pin arranged on the driving seat.

Optionally, a bearing is disposed between the turntable and the housing.

Optionally, the light source is an LED lamp bead, the LED lamp bead is mounted at the end of the driving seat, the LED lamp bead is connected with a cover plate, the cover plate is provided with a light transmitting hole, and the cover plate is used for fixing the LED lamp bead on the driving seat.

Optionally, the sleeve is provided with heat dissipation fins.

Optionally, the lens device includes a reflective mirror and a transmissive mirror, the reflective mirror is connected to the housing, and the transmissive mirror is mounted on the reflective mirror.

Optionally, a light incident end of the transmission mirror is provided with a concave portion, and a light emergent end of the transmission mirror is further provided with a diffuser.

Optionally, the housing is provided with a connecting hole for connecting an external bracket.

The application provides a pair of light zooms beneficial effect of structure lies in: compared with the prior art, the light structure of zooming of this application, through focusing device's rotation drive portion drive straight line feeding portion motion, drives the light source by straight line feeding portion again and follows the direction linear motion that is close to or keeps away from the lens device to change the distance between light source and the lens device, shine the size and the luminance in back illumination area with this regulation light source, realize the process of zooming. This light zooms structure turns into the linear motion of straight line feeding portion with circumferencial direction's rotary motion, has reduced the required linear motion direction's of in-process of zooming reservation stroke length, has not only reduced the whole length of light zooms structure, has reduced manufacturing cost, but also has the advantage that the regulating mode is simple, convenient to use.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic cross-sectional structural diagram of a light zooming structure provided in an embodiment of the present application;

fig. 2 is a schematic perspective view of a light zooming structure according to an embodiment of the present application;

fig. 3 is a first exploded view of a light zooming structure according to an embodiment of the present disclosure;

fig. 4 is an exploded schematic view of a light zooming structure according to an embodiment of the present application;

fig. 5 is a third exploded schematic view of a light zooming structure according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1. a housing; 2. a lens device; 21. a reflective mirror; 22. a transmission mirror; 23. a recessed portion; 24. an astigmatic mirror; 32. a linear feeding section; 33. a turntable; 34. a sleeve; 341. heat dissipation fins; 35. an inclined groove; 36. a drive member; 37. a driving seat; 4. a light source; 41. a cover plate; 5. an elastic buffer member; 6. a bearing; 8. and connecting the holes.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the 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 application.

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 application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 and fig. 2, the light zooming structure of the present embodiment includes a housing 1, a lens device 2 disposed on the housing 1, a focusing device and a light source 4 disposed in the housing 1, the focusing device includes a rotation driving portion rotatably mounted on the housing 1 and a linear feeding portion 32 in transmission fit with the rotation driving portion, the light source 4 is disposed on the linear feeding portion 32 and faces the lens device 2, the rotation driving portion can drive the linear feeding portion 32 to move linearly in a direction approaching to or away from the lens device 2 when rotating, specifically, the lens device 2 is exposed in the housing 1 at one end of the housing 1 to enable light to pass out, the linear feeding portion 32 is disposed in the housing 1, and the rotation driving portion is exposed in the housing 1 at the other end of the housing 1 to facilitate the rotation driving portion 31 to operate outside the housing 1.

Compared with the prior art, the light zooming structure has the advantages that the linear feeding portion 32 is driven to move by the rotation driving portion of the focusing device, the linear feeding portion 32 drives the light source 4 to linearly move along the direction close to or far away from the lens device 2, so that the distance between the light source 4 and the lens device 2 is changed, the size and the brightness of an illumination area after the light source 4 is irradiated are adjusted, and the zooming process is realized. This light zooms structure turns into the linear motion of straight line feeding portion 32 with circumferencial direction's rotary motion, has reduced the required linear motion direction's of the in-process of zooming reservation stroke length, has not only reduced the whole length of light zooms structure, has reduced manufacturing cost, but also has the advantage that the regulating mode is simple, convenient to use.

As shown in fig. 1, in the present embodiment, the rotary driving part is a rotary disc 33, the linear feeding part 32 is a sleeve 34 slidably mounted inside the housing 1, the light source 4 is mounted at an end of the sleeve 34, a side wall of the sleeve 34 is provided with an inclined groove 35 offset along an axial direction of the sleeve 34, and the rotary disc 33 is connected with a driving part 36 located in the inclined groove 35. In use, the turntable 33 is rotated, the turntable 33 rotates the driving member 36, the driving member 36 slides in the inclined groove 35, and the sleeve 34 is forced to move axially, thereby changing the distance between the light source 4 and the lens device 2. The inclined groove 35 may be a spiral groove or a straight inclined groove, and as other embodiments, the conversion between the rotary motion and the linear motion between the rotary disk 33 and the sleeve 34 is not limited to the form that the inclined groove 35 cooperates with the driving member 36, and may also be implemented by a mechanism such as a lead screw nut.

As shown in fig. 1, in the present embodiment, the focusing apparatus includes an elastic buffer 5 disposed between the sleeve 34 and the housing 1. The elastic buffer 5 may be a spring, a reed, a disc spring, or the like. The elastic buffer 5 acts as a damper for the movement of the linear feed portion 32, and prevents the linear feed portion 32 from rising or falling suddenly.

As shown in fig. 4 and 5, in the present embodiment, the focusing apparatus further includes a driving seat 37 connected to the turntable 33, and the driving member 36 is a driving pin disposed on the driving seat 37. The rotation of the rotary disk 33 drives the driving seat 37 to rotate, and the driving pin arranged on the driving seat 37 slides in the inclined groove 35. Since the sleeve 34 is slidably mounted on the housing 1, the drive pins will force the sleeve 34 to slide on the housing 1. It will be appreciated that in other embodiments, the drive pin may also be a drive post or block.

As shown in fig. 1, in the present embodiment, a bearing 6 is provided between the turntable 33 and the housing 1. The bearing 6 may be a roller bearing, a horizontal thrust ball bearing, an angular contact bearing, or the like. The bearing 6 is used to reduce the friction force of the rotation of the turntable 33 relative to the housing 1, so that the rotation of the turntable 33 is smoother.

As shown in fig. 4 and 5, in this embodiment, the light source 4 is an LED lamp bead, the LED lamp bead is installed at the end of the driving seat 37, a cover plate 41 is connected to the LED lamp bead, the cover plate 41 has a light-transmitting hole, and the cover plate 41 is used for fixing the LED lamp bead on the driving seat 37.

As shown in fig. 4 and 5, in the present embodiment, the sleeve 34 is provided with heat dissipation fins 341, and more specifically, a plurality of heat dissipation fins 341 may be annularly disposed on the sleeve 34, and the heat dissipation fins 341 help to improve the heat dissipation capability of the sleeve 34, so as to cool the light source 4.

As shown in fig. 4 and 5, in the present embodiment, the lens device 2 includes a reflective mirror 21 and a transmissive mirror 22, the reflective mirror 21 being attached to the housing 1, and the transmissive mirror 22 being mounted on the reflective mirror 21. The reflector 21 functions to reflect light, and reflects the light to the transmission mirror 22, thereby improving the brightness of the light emitted from the transmission mirror 22. The transmission mirror 22 is used for diverging the light at the light source 4 to expand the irradiation area of the light source 4.

As shown in fig. 1, in the present embodiment, a concave portion 23 is disposed at the light incident end of the transmission mirror 22, and a diffuser 24 is further mounted at the light emitting end of the transmission mirror 22. The light source 4 and the linear feeder 32 may extend into the recess 23 for increasing the stroke of the light source 4 and the linear feeder 32 to expand the zoom range. The diffuser 24 is used to diffuse the light from the light source 4 and prevent sharp apertures in the illuminated area.

As shown in fig. 2, in this embodiment, the housing 1 is provided with a connection hole 8 for connecting an external bracket, so that the light zooming structure can be conveniently connected to an external desk lamp bracket, a stage lamp bracket or other brackets.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a light zooming structure, its characterized in that, including casing (1), set up in lens device (2), focusing device on casing (1) and being located light source (4) in casing (1), focusing device including rotationally install in the rotation driving part of casing (1) and with rotation driving part transmission fit's straight line feeds portion (32), light source (4) set up on straight line feeds portion (32) and face lens device (2), can drive when rotation driving part is rotatory straight line feeds portion (32) along being close to or keeping away from the direction linear motion of lens device (2).

2. A light zoom structure as claimed in claim 1, wherein the rotary driving part is a rotary disc (33), the linear feeding part (32) is a sleeve (34) slidably mounted inside the housing (1), the light source (4) is mounted at an end of the sleeve (34), a side wall of the sleeve (34) is provided with an inclined groove (35) offset along an axial direction of the sleeve (34), and the rotary disc (33) is connected with a driving part (36) located in the inclined groove (35).

3. A light zoom structure as claimed in claim 2, characterized in that the focusing means comprise an elastic buffer (5) arranged between the sleeve (34) and the housing (1).

4. A light zoom structure as claimed in claim 3, wherein the focusing means further comprises a driving seat (37) connected to the turntable (33), and the driving member (36) is a driving pin provided on the driving seat (37).

5. A light zoom structure as claimed in claim 4, characterized in that a bearing (6) is provided between the turntable (33) and the housing (1).

6. A light zooming structure according to claim 4, wherein the light source (4) is an LED lamp bead, the LED lamp bead is installed at the end of the driving seat (37), a cover plate (41) is connected to the LED lamp bead, the cover plate (41) is provided with a light hole, and the cover plate (41) is used for fixing the LED lamp bead on the driving seat (37).

7. A light zoom structure as claimed in claim 2, wherein the sleeve (34) is provided with heat dissipating fins (341).

8. A light zoom structure as claimed in any one of claims 1 to 7, characterized in that the lens arrangement (2) comprises a reflective mirror (21) and a transmissive mirror (22), the reflective mirror (21) being attached to the housing (1) and the transmissive mirror (22) being mounted on the reflective mirror (21).

9. A light zoom structure as defined in claim 8, wherein the light incident end of the transmission mirror (22) is provided with a recess (23), and the light exit end of the transmission mirror (22) is further provided with a diffuser (24).

10. A light zoom structure as defined in any one of claims 1 to 7, characterized in that the housing (1) is provided with a connecting hole (8) for connecting an external bracket.