CN219872090U

CN219872090U - Telescopic lens structure

Info

Publication number: CN219872090U
Application number: CN202321131399.8U
Authority: CN
Inventors: 吴贵来; 秦建兵
Original assignee: Dongguan Yimi Optoelectronic Technology Co ltd
Current assignee: Dongguan Yimi Optoelectronic Technology Co ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-10-20
Anticipated expiration: 2033-05-10

Abstract

The utility model discloses a telescopic lens structure, which relates to the technical field of lens telescopic structures, and comprises an upper shell and a lower shell, wherein a telescopic lens barrel is arranged between the upper shell and the lower shell, a protective shell is arranged on the upper shell, the protective shell is positioned on the lens barrel, a rotating rod is rotatably arranged on the protective shell, a guide groove is formed in the rotating rod, a driven rod is fixedly arranged on the lens barrel and used for being connected with the guide groove in a sliding mode, two circular rings are arranged on the lens barrel, and a horizontal groove is formed in an array on each circular ring. The telescopic lens structure adopts the driven rod to be fixedly connected with the lens barrel, the rotary rod is controlled to rotate by the driving motor, automatic adjustment is realized, the guide groove formed in the rotary rod is matched with the driven rod, the lens barrel is enabled to reciprocate and translate along with the rotation of the rotary rod, the lens barrel is adjusted to stretch, the length of the lens barrel is adjusted by the aid of the rotary rod which is electrically controlled to rotate, automatic adjustment is realized, and adjustment and control are simple and convenient.

Description

Telescopic lens structure

Technical Field

The utility model relates to the technical field of lens telescopic structures, in particular to a telescopic lens structure.

Background

Projectors are typically fitted with projection lenses and the lenses need to be moved telescopically to adjust the definition of the projection.

In the prior art, the application number is as follows: the name disclosed in CN201520705899.7 is: the utility model provides a extending structure and projecting apparatus of projecting apparatus camera lens, wherein includes casing, camera lens, adjusting part, and adjusting part is including fixing the driving wheel of locating on the casing, protruding the promotion portion of locating on the terminal surface of driving wheel, and driving wheel rotates through the axis of rotation and installs on the casing, and the skew axis of rotation setting of promotion portion, and holding in long hole, promotion portion are used for driving the extension direction reciprocating sliding of camera lens along the mounting hole when driving wheel rotation.

However, in the prior art, the application number is as follows: in the projector lens telescopic structure mentioned in CN201520705899.7, a limit switch is required for rotation of the lens to limit forward and backward movement of the lens, and the telescopic stroke of the lens is required to be limited by the set limit switch, which is generally a forward and backward stroke dead point.

Disclosure of Invention

The utility model aims to provide a telescopic lens structure so as to solve the problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme:

a telescopic lens structure comprises an upper shell and a lower shell, a telescopic lens barrel is arranged between the upper shell and the lower shell, a protective shell is arranged on the upper shell, and the protective shell is positioned on the lens barrel.

The rotary rod is rotatably mounted in the protective shell, the rotary rod is provided with a guide groove, and the lens barrel is fixedly provided with a driven rod for sliding connection with the guide groove.

Preferably, the lens cone is provided with two circular rings, the circular rings are provided with horizontal grooves in an array, the horizontal grooves are internally provided with spheres in a sliding mode, the spheres are used for being in sliding contact with the inner wall of the lens cone sleeve, and a plurality of lenses are arranged in the lens cone.

Preferably, a driving motor is fixedly arranged at one end of the protective shell, the driving motor is fixedly arranged above the upper shell, a connecting component is fixedly arranged at the output end of the driving motor, and the connecting component is used for installing a rotating rod.

Preferably, one end of the rotary rod is rotatably connected with the protective shell, and the other end of the rotary rod is buckled with the connecting component.

Preferably, the guide groove is annular, and the guide groove is arranged on the rotating rod.

Preferably, the driven rod is located below the rotary rod, and the driven rod is matched with the guide groove and used for driving the driven rod to reciprocate and translate.

The utility model has the beneficial effects that:

1. the telescopic lens structure adopts the driven rod to be fixedly connected with the lens barrel, and the driving motor is used for controlling the rotating rod to rotate so as to realize automatic adjustment, and the guide groove formed on the rotating rod is matched with the driven rod, so that the lens barrel can reciprocate and translate along with the rotation of the rotating rod, and the lens barrel is adjusted to be telescopic;

2. the telescopic lens structure is small and simple in structure, the length of the lens barrel is adjusted by utilizing the rotating rod which rotates in an electric control mode, the adjustment and the control are simple and convenient, the end point of the forward and backward moving stroke is fixed, the transition is smooth, and the stroke end point is not required to be set.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the lens according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a side view of a lens structure of the present utility model;

fig. 5 is a cross-sectional view of a lens structure of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a telescopic lens structure, as shown in fig. 1, the lens structure includes lower casing 3, installs the casing on the lower casing 3, does not show the casing on the drawing, goes up the casing lock on lower casing 3, forms the lens cone cover, and is provided with lens cone 1 between last casing and the lower casing 3, and lens cone 1 rotates to install between last casing and lower casing 3, installs protective housing 2 on the last casing, and protective housing 2 is located lens cone 1.

As shown in fig. 1, 2, 3, 4 and 5, two circular rings 11 are arranged on the lens cone 1, horizontal grooves 12 distributed in an array are formed in the circular rings 11, balls 13 are slidably arranged in the horizontal grooves 12, the balls 13 are slidably connected with the inner wall of the lens cone sleeve and used for supporting the lens cone 1, driven rods 15 are fixedly arranged on the lens cone 1, and a plurality of lenses 14 are arranged in the lens cone 1.

One end of the protective shell 2 is fixedly provided with a driving motor 20, the driving motor 20 is fixedly arranged above the upper shell, the output end of the driving motor 20 is fixedly provided with a connecting component 21, a rotating rod 22 is arranged on the connecting component 21, one end of the rotating rod 22 is rotationally connected with the protective shell 2, the other end of the rotating rod 22 is buckled and connected with the connecting component 21, the rotating rod 22 is controlled to rotate through the driving motor 20, and an annular guide groove 23 is formed in the rotating rod 22.

The driven rod 15 is located below the rotary rod 22, and the driven rod 15 is matched with the guide groove 23, when the rotary rod 22 rotates clockwise, the driven rod 15 moves horizontally along the guide groove 23, the rotary rod 22 rotates continuously, and the driven rod 15 can translate reciprocally to drive the lens barrel 1 to move in a lifting mode.

When in use, the working principle of the telescopic lens structure is as follows:

the rotary rod 22 and the driven rod 15 are matched for working, the driven rod 15 is fixedly connected with the lens barrel 1, an electric wire is connected to the driving motor 20 and used for supplying power to the driving motor 20, after the driving motor 20 is started, the driving motor 20 controls the rotary rod 22 to rotate, the annular wavy guide groove 23 on the rotary rod 22 is in sliding connection with the driven rod 15, the driven rod 15 slides along the guide groove 23, and after the rotary rod 22 is continuously rotated, the driven rod 15 can be controlled to horizontally move, and the driven rod 15 is in reciprocating translation.

Through the operation, the lens barrel 1 can be adjusted in a telescopic way, the length of the lens of the projector host is adjusted, and when the lens barrel 1 moves in a telescopic way, the sphere 13 on the outer side of the lens barrel 1 is abutted with the lens barrel sleeve, so that the resistance of the lens barrel 1 in telescopic translation is reduced, and the smooth translation of the lens structure is ensured.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The telescopic lens structure comprises an upper shell and a lower shell (3), and is characterized in that a telescopic lens barrel (1) is arranged between the upper shell and the lower shell (3), a protective shell (2) is arranged on the upper shell, and the protective shell (2) is positioned on the lens barrel (1);

the rotary rod (22) is rotatably mounted on the protective shell (2), the guide groove (23) is formed in the rotary rod (22), and the driven rod (15) is fixedly arranged on the lens barrel (1) and is used for being connected with the guide groove (23) in a sliding mode.

2. The retractable lens structure according to claim 1, wherein the lens barrel (1) is provided with two circular rings (11), the circular rings (11) are provided with horizontal grooves (12) in an array, the horizontal grooves (12) are internally provided with spheres (13) in a sliding manner, the spheres (13) are used for being in sliding contact with the inner wall of the lens barrel sleeve, and a plurality of lenses (14) are arranged in the lens barrel (1).

3. The retractable lens structure according to claim 2, wherein a driving motor (20) is fixedly arranged at one end of the protective housing (2), the driving motor (20) is fixedly arranged above the upper housing, a connecting component (21) is fixedly arranged at an output end of the driving motor (20), and the connecting component (21) is used for installing a rotating rod (22).

4. A retractable lens structure according to claim 3, wherein one end of the rotary rod (22) is rotatably connected with the protective housing (2), and the other end is fastened with the connecting component (21).

5. A retractable lens structure according to claim 1, wherein the guide groove (23) is annular, and the guide groove (23) is disposed on the rotating rod (22).

6. A retractable lens structure according to claim 5, wherein the driven rod (15) is located below the rotary rod (22), and the driven rod (15) is matched with the guide groove (23) for driving the driven rod (15) to reciprocate.