Lens assembly with aperture zooming structure

Abstract

The utility model discloses a lens assembly with an aperture zooming structure, which comprises a camera and a lens body arranged on the camera, the lens body is provided with an aperture ring used for carrying out zooming adjustment on the size of an aperture, and the lens assembly further comprises a limiting assembly arranged on the lens body and used for limiting the aperture ring. The limiting assembly comprises two fixing rings fixedly connected to the lens body, the two fixing rings are symmetrically arranged relative to the aperture ring, the aperture ring is provided with a limiting cavity, one side, close to the two fixing rings, of the limiting cavity is provided with through holes, and the two through holes are slidably connected with a limiting plate. Through the arrangement of the limiting assembly, under the driving action of the driving assembly, in the rotation process of the aperture ring, limiting on the aperture ring is relieved, after aperture zooming adjustment is completed, the aperture ring is automatically limited, operation is easy, implementation is convenient and fast, and therefore the limiting force on the aperture ring is guaranteed while rotation abrasion of a limiting piece is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to a lens assembly with an aperture zoom structure. Background Art

[0002] The aperture is a component on the camera used to control the size of the lens opening. It allows the photographer to adjust the size of the aperture according to the shooting environment and needs, thereby affecting the amount of light entering, the depth of field, the brightness of the picture, and the presentation of the subject.

[0003] The existing lens aperture adjustment device increases or decreases the aperture by rotating the aperture ring to drive multiple blades to close or move away from each other. The aperture size is scaled by rotating the aperture ring. Although this ensures convenient operation, when the aperture ring is used for a long time and rotated multiple times, the friction limit component of the aperture ring is easily reduced due to rotational wear, thereby causing insufficient limiting of the aperture ring, further reducing the stability of the aperture zoom control.

[0004] Therefore, a lens assembly with an aperture zoom structure is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a lens assembly with an aperture zoom structure to solve the problem in the background art that the friction limit component of the aperture ring is easily worn out due to rotation, thereby reducing the friction force.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lens assembly with an aperture zoom structure, comprising a camera and a lens body arranged on the camera, wherein the lens body is provided with an aperture ring for zooming and adjusting the aperture size, and further comprising a limiting assembly arranged on the lens body and used for limiting the aperture ring;

[0007] The limit assembly includes two fixing rings fixedly connected to the lens body, the two fixing rings are symmetrically arranged about the aperture ring, the aperture ring is provided with a limit cavity, the limit cavity is provided with a through hole on one side close to the two fixing rings, the two through holes are both slidably connected to the limit plates, and a driving assembly for driving the two limit plates is provided in the limit cavity.

[0008] One end of the two limiting plates close to the fixing ring has a frosted surface.

[0009] The driving assembly includes a driving plate slidably connected to the limiting cavity, and one side of the driving plate close to the two limiting plates is rotatably connected to two rotating plates, and the other ends of the two rotating plates are connected to the limiting plates. A pushing assembly for pushing the driving plate is provided in the limiting cavity.

[0010] An extrusion assembly for extruding the driving plate is provided in the limiting cavity, and the extrusion assembly includes an extrusion tube fixedly connected to the bottom wall of the limiting cavity, the extrusion tube is slidably connected to an extrusion rod, one end of the extrusion rod is connected to the driving plate, the side of the extrusion rod away from the extrusion rod is fixedly connected to an extrusion plate, the other side of the extrusion plate is fixedly connected to a spring, and the other end of the spring is connected to the bottom wall of the extrusion tube.

[0011] There are two extrusion assemblies, and the two extrusion assemblies are symmetrically arranged with respect to each other.

[0012] The pushing assembly comprises a pushing rod slidably connected to the aperture ring, one end of the pushing rod is connected to the driving plate, and the other end of the pushing rod is fixedly connected to the pushing plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a limit assembly, under the driving action of the driving assembly, during the rotation of the aperture ring, the limit of the aperture ring is released, and after the aperture zoom adjustment is completed, the aperture ring is automatically limited, the operation is simple, and the implementation is convenient, thereby avoiding the rotation wear of the limit piece while ensuring the limit force of the aperture ring, and further improving the stability of the aperture zoom size control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the drive assembly of the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 101, camera; 102, lens body; 103, aperture ring; 201, fixing ring; 202, limit cavity; 203, through hole; 204, limit plate; 301, drive plate; 302, rotating plate; 401, extrusion tube; 402, extrusion rod; 403, extrusion plate; 404, spring; 501, push rod; 502, push plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-Figure 4 , a lens assembly with an aperture zoom structure shown in the figure includes a camera 101 and a lens body 102 arranged on the camera 101, an aperture ring 103 for zooming and adjusting the aperture size is provided on the lens body 102, and also includes a limit assembly arranged on the lens body 102 and used for limiting the aperture ring 103;

[0023] The limiting assembly includes two fixing rings 201 fixedly connected to the lens body 102, the two fixing rings 201 are symmetrically arranged about the aperture ring 103, the aperture ring 103 is provided with a limiting cavity 202, a through hole 203 is provided on one side of the limiting cavity 202 close to the two fixing rings 201, the two through holes 203 are both slidably connected to the limiting plates 204, and a driving assembly for driving the two limiting plates 204 is arranged in the limiting cavity 202;

[0024] It should be noted here that: through the setting of the limit assembly, under the driving action of the driving assembly, the limit of the aperture ring 103 is released during the rotation of the aperture ring 103, and after the aperture zoom adjustment is completed, the aperture ring 103 is automatically limited, which is simple to operate and easy to implement, thereby avoiding the rotational wear of the limiter while ensuring the limiting force of the aperture ring 103, further improving the stability of the aperture zoom size control.

[0025] It is worth noting that the specific structure of the zoom adjustment of the aperture ring 103 is a prior art that has been mastered by those skilled in the art and will not be elaborated on herein.

[0026] See also Figure 3 and Figure 4 , the two limiting plates 204 shown in the figure have a frosted surface at one end close to the fixing ring 201;

[0027] It should be noted here that the friction between the limiting plates 204 and the fixing ring 201 is increased by frosting the ends of the two limiting plates 204 close to the fixing ring 201 .

[0028] See also Figure 3 and Figure 4The driving assembly shown in the figure includes a driving plate 301 slidably connected to the limiting cavity 202, and one side of the driving plate 301 close to the two limiting plates 204 is rotatably connected to the two rotating plates 302, and the other ends of the two rotating plates 302 are connected to the limiting plates 204, and a pushing assembly for pushing the driving plate 301 is provided in the limiting cavity 202;

[0029] It should be noted here that: by setting the driving component, it is convenient to drive the two limit plates 204 to move closer to or away from each other.

[0030] See also Figure 3 and Figure 4 , the limiting cavity 202 shown in the figure is provided with an extrusion assembly for extruding the driving plate 301, the extrusion assembly includes an extrusion tube 401 fixedly connected to the bottom wall of the limiting cavity 202, the extrusion tube 401 is slidably connected with an extrusion rod 402, one end of the extrusion rod 402 is connected to the driving plate 301, the other end of the extrusion rod 402 is fixedly connected to an extrusion plate 403, the side of the extrusion plate 403 away from the extrusion rod 402 is fixedly connected with a spring 404, and the other end of the spring 404 is connected to the bottom wall of the extrusion tube 401;

[0031] It should be noted here that: the arrangement of the extrusion assembly provides a guiding and resetting function for the driving plate 301 .

[0032] See also Figure 3 and Figure 4 , there are two extrusion assemblies in the figure, and the two extrusion assemblies are symmetrically arranged with each other;

[0033] It should be noted here that: the two mutually symmetrically arranged extrusion components provide a more stable guiding and resetting function for the driving plate 301.

[0034] Working principle: When the aperture size on the lens body 102 is adjusted, the thumb is placed on the push plate 502 and the push plate 502 is pressed while the aperture ring 103 is rotated, so that the driving plate 301 is pushed to move in the limit cavity 202 under the action of the pushing component;

[0035] When the driving plate 301 moves in the limiting cavity 202, the two rotating plates 302 will be driven to rotate closer to each other. When the two rotating plates 302 rotate closer to each other, the two limiting plates 204 will be driven to move closer to each other, so that one end of the two limiting plates 204 will no longer abut against the side wall of the fixing ring 201. At this time, the aperture ring 103 can be rotated. When the aperture size is scaled to a suitable degree, the pressing on the pushing plate 502 is released. At this time, under the action of the extrusion component, the driving plate 301 will be pushed to move in the opposite direction in the limiting cavity 202, thereby driving the two The rotating plates 302 rotate away from each other, further driving the two limit plates 204 to move away from each other and abut against the side walls of the fixed ring 201, so that the aperture ring 103 is limited under the pressing action of the limit plates 204. The operation is simple and the implementation is convenient. During the rotation of the aperture ring 103, the limit of the aperture ring 103 is released. After the aperture zoom adjustment is completed, the aperture ring 103 is automatically limited, thereby avoiding rotational wear of the limit parts while ensuring the limiting force of the aperture ring 103, further improving the stability of the aperture zoom size control.

[0036] Example 2

[0037] See also Figure 4 This embodiment further illustrates Example 1. The pushing assembly shown in the figure includes a pushing rod 501 slidably connected to the aperture ring 103. One end of the pushing rod 501 is connected to the driving plate 301. The other end of the pushing rod 501 is fixedly connected to the pushing plate 502.

[0038] It should be noted here that: through the setting of the pushing component, when the pushing plate 502 is pressed and pushed, under the pressing force, the pushing rod 501 will be pushed to shrink into the limiting cavity 202, thereby further pushing the driving plate 301 to slide in the limiting cavity 202.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A lens assembly with an aperture zoom structure, comprising: A camera (101) and a lens body (102) arranged on the camera (101), wherein the lens body (102) is provided with an aperture ring (103) for scaling the aperture size; It is characterized by further comprising: A limiting component disposed on the lens body (102) and used to limit the position of the aperture ring (103); The limit assembly comprises two fixing rings (201) fixedly connected to the lens body (102); the two fixing rings (201) are symmetrically arranged with respect to the aperture ring (103); the aperture ring (103) is provided with a limit cavity (202); a through hole (203) is provided on a side of the limit cavity (202) close to the two fixing rings (201); the two through holes (203) are both slidably connected to the limit plates (204); and a driving assembly for driving the two limit plates (204) is provided in the limit cavity (202).

2. The lens assembly with an aperture zoom structure according to claim 1, characterized in that: One end of the two limiting plates (204) close to the fixing ring (201) has a frosted surface.

3. The lens assembly with an aperture zoom structure according to claim 1, characterized in that: The driving assembly comprises a driving plate (301) slidably connected to the limiting cavity (202); one side of the driving plate (301) close to the two limiting plates (204) is rotatably connected to the two rotating plates (302); the other ends of the two rotating plates (302) are connected to the limiting plates (204); and a pushing assembly for pushing the driving plate (301) is provided in the limiting cavity (202).

4. The lens assembly with an aperture zoom structure according to claim 3, characterized in that: An extrusion assembly for extruding the drive plate (301) is provided in the limiting cavity (202), and the extrusion assembly comprises an extrusion tube (401) fixedly connected to the bottom wall of the limiting cavity (202), the extrusion tube (401) is slidably connected to an extrusion rod (402), one end of the extrusion rod (402) is connected to the drive plate (301), the other end of the extrusion rod (402) is fixedly connected to an extrusion plate (403), a side of the extrusion plate (403) away from the extrusion rod (402) is fixedly connected to a spring (404), and the other end of the spring (404) is connected to the bottom wall of the extrusion tube (401).

5. The lens assembly with an aperture zoom structure according to claim 4, characterized in that: There are two extrusion assemblies, and the two extrusion assemblies are symmetrically arranged with respect to each other.

6. The lens assembly with an aperture zoom structure according to claim 3, characterized in that: The pushing assembly comprises a pushing rod (501) slidably connected to the aperture ring (103), one end of the pushing rod (501) is connected to the driving plate (301), and the other end of the pushing rod (501) is fixedly connected to the pushing plate (502).

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