Optical lens with self-locking structure

Abstract

The utility model relates to the technical field of optical lenses, in particular to an optical lens with a self-locking structure, which comprises an optical lens body, a zoom ring is rotatably mounted on the optical lens body, a plurality of locking grooves are arranged on one side of the zoom ring, a fixing block is fixedly mounted on the optical lens body, and the locking grooves are arranged on the other side of the zoom ring. A movable hole is formed in the fixed block, a movable rod is slidably installed in the movable hole, a locking block is fixedly installed at one end of the movable rod, one end of the locking block is inserted into the locking groove, the movable rod is sleeved with a telescopic spring, and the two ends of the telescopic spring are fixedly connected with the fixed block and the locking block respectively. After the optical lens provided by the utility model is adjusted, the zoom ring can be locked through the mutual cooperation of the fixed block, the movable rod, the locking block and the elastic force of the telescopic spring, so that the zoom ring is prevented from rotating when the zoom ring is touched, and the optical lens is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of optical lenses, in particular to an optical lens with a self-locking structure. Background Art

[0002] In the machine vision system, the optical lens is an indispensable component. When the optical lens is in use, the operator needs to manually operate the optical lens and adjust the focal length of the optical lens to present a clear image.

[0003] A Chinese patent with publication number CN207992660U discloses a novel optical lens, including a shell assembly and a protective assembly, wherein the shell assembly includes a lens body, a zoom ring, a focus ring, a scale belt, a connecting seat and a lens body, wherein the lens body is located on the left outer surface of the lens body and is fixedly connected to the lens body, and the zoom ring and the focus ring are arranged laterally on the outer side wall of the lens body and are rotatably connected to the lens body, etc.

[0004] In the above patent document, the object is photographed by adjusting the appropriate focal length by rotating the zoom ring. However, during use, if the zoom ring is accidentally touched again, the zoom ring will rotate, causing the adjusted focal length to change, and the zoom ring needs to be adjusted again, which is inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to solve the following shortcomings in the prior art: during use, if the zoom ring is accidentally touched again, the zoom ring will rotate, causing the adjusted focal length to change, and the zoom ring needs to be adjusted again, which is inconvenient to use. An optical lens with a self-locking structure is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An optical lens with a self-locking structure comprises an optical lens body, a zoom ring is rotatably mounted on the optical lens body, and a plurality of locking grooves are provided on one side of the zoom ring;

[0008] A fixed block is fixedly installed on the optical lens body, a moving hole is opened on the fixed block, a moving rod is slidably installed in the moving hole, a locking block is fixedly installed on one end of the moving rod, one end of the locking block is inserted in the locking groove, a telescopic spring is sleeved on the moving rod, and both ends of the telescopic spring are fixedly connected to the fixed block and the locking block respectively.

[0009] Preferably, spring rods are symmetrically fixedly mounted on the optical lens body, pressure plates are fixedly mounted on the upper ends of the two spring rods, a support rod is rotatably mounted on the pressure plate, and one end of the support rod away from the pressure plate is rotatably connected to one end of the moving rod.

[0010] Preferably, a rectangular block is fixedly mounted on the fixed block, an elastic rod is horizontally fixedly mounted on the rectangular block, a plurality of positioning grooves are opened on one side of the zoom ring, the plurality of positioning grooves respectively correspond to a plurality of locking grooves, and one end of the elastic rod is inserted into the positioning groove.

[0011] Preferably, a rotating shaft is fixedly mounted on the side surface of the pressure plate, an adjusting wheel is rotatably mounted on the rotating shaft, and the adjusting wheel is located directly above the zoom ring.

[0012] Preferably, an anti-skid sleeve is fixedly sleeved on the adjusting wheel, the anti-skid sleeve is made of rubber material, and anti-skid patterns are formed on the anti-skid sleeve.

[0013] Preferably, a plurality of the locking grooves are circumferentially opened on the side surface of the zoom ring, and the plurality of the locking grooves respectively correspond to a plurality of focal lengths adjusted by the zoom ring.

[0014] In the utility model, the beneficial effects are:

[0015] 1. After the optical lens is adjusted, the fixed block, the moving rod, the locking block and the elastic force of the telescopic spring can be used to lock the zoom ring, thereby preventing the zoom ring from rotating when it is touched, which is convenient to use;

[0016] 2. When you need to adjust the focal length precisely, you can make the adjusting wheel contact the zoom ring, and then turn the adjusting wheel. Through the transmission ratio between the adjusting wheel and the zoom ring, you can achieve a slight rotation of the zoom ring, making the focal length adjustment more precise and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an optical lens with a self-locking structure proposed by the utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of a fixed block, a moving rod and a locking block in an optical lens with a self-locking structure proposed by the utility model;

[0019] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0020] In the figure: 1 optical lens body, 2 zoom ring, 3 locking groove, 4 fixed block, 5 moving rod, 6 locking block, 7 telescopic spring, 8 spring rod, 9 pressure plate, 10 support rod, 11 rectangular block, 12 elastic rod, 13 positioning groove, 14 adjusting wheel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 3 , an optical lens with a self-locking structure, comprising an optical lens body 1, a zoom ring 2 is rotatably mounted on the optical lens body 1, and a plurality of locking grooves 3 are opened on one side of the zoom ring 2;

[0023] A fixed block 4 is fixedly installed on the optical lens body 1, and a moving hole is opened on the fixed block 4. A moving rod 5 is slidably installed in the moving hole. A locking block 6 is fixedly installed on one end of the moving rod 5. One end of the locking block 6 is inserted into the locking groove 3. A telescopic spring 7 is sleeved on the moving rod 5, and both ends of the telescopic spring 7 are fixedly connected to the fixed block 4 and the locking block 6 respectively.

[0024] Under the action of the elastic force of the telescopic spring 7, the moving rod 5 and the locking block 6 tend to move toward the zoom ring 2. When the focal length of the zoom ring 2 is adjusted, one end of the locking block 6 can be inserted into the locking groove 3. The locking block 6 and the locking groove 3 lock the zoom ring 2, thereby preventing the zoom ring 2 from rotating when it touches the zoom ring 2, which is convenient to use.

[0025] The optical lens body 1 is symmetrically fixed with spring rods 8, the upper ends of the two spring rods 8 are fixedly installed with a pressure plate 9, and a support rod 10 is rotatably installed on the pressure plate 9, and one end of the support rod 10 away from the pressure plate 9 is rotatably connected to one end of the moving rod 5;

[0026] When adjustment is needed, the pressure plate 9 can be pressed with a finger to drive the pressure plate 9 to move vertically downward, compress the spring rod 8, and then drive the moving rod 5 to move away from the zoom ring 2 through the support rod 10, thereby driving the locking block 6 to move out of the locking groove 3 and unlocking the zoom ring 2.

[0027] A rectangular block 11 is fixedly installed on the fixed block 4, and an elastic rod 12 is horizontally fixedly installed on the rectangular block 11. A plurality of positioning grooves 13 are provided on one side of the zoom ring 2, and the plurality of positioning grooves 13 correspond to the plurality of locking grooves 3 respectively. One end of the elastic rod 12 is inserted in the positioning groove 13, and the plurality of locking grooves 3 are circumferentially provided on the side of the zoom ring 2. The plurality of locking grooves 3 correspond to the plurality of focal lengths adjusted by the zoom ring 2 respectively. When the zoom ring 2 is rotated, the elastic rod 12 will be deformed, so that during the rotation process, one end of the elastic rod 12 will be continuously inserted in other positioning grooves 13. When one end of the elastic rod 12 moves from one positioning groove 13 to an adjacent positioning groove 13, a scale of focal length adjustment is completed. When the adjustment is completed, when one end of the elastic rod 12 is inserted in the positioning groove 13, one end of its locking block 6 is just facing the locking groove 3.

[0028] A rotating shaft is fixedly mounted on the side of the pressure plate 9, and an adjusting wheel 14 is rotatably mounted on the rotating shaft. The adjusting wheel 14 is located directly above the zoom ring 2, and an anti-skid sleeve is fixedly sleeved on the adjusting wheel 14. The anti-skid sleeve is made of rubber and has anti-skid patterns.

[0029] When it is necessary to precisely adjust the focal length, the pressure plate 9 is pressed, and the adjusting wheel 14 is driven to approach the zoom ring 2 until the adjusting wheel 14 contacts the zoom ring 2, and then the adjusting wheel 14 is rotated. Through the transmission ratio between the adjusting wheel 14 and the zoom ring 2, a slight rotation of the zoom ring 2 is achieved, making the focal length adjustment more precise and more convenient to use.

[0030] In the utility model, under the action of the elastic force of the telescopic spring 7, the moving rod 5 and the locking block 6 tend to move toward the zoom ring 2. When the focal length of the zoom ring 2 is adjusted, one end of the locking block 6 can be inserted into the locking groove 3. The zoom ring 2 is locked by the locking block 6 and the locking groove 3, thereby preventing the zoom ring 2 from rotating when it touches the zoom ring 2, which is convenient to use.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An optical lens with a self-locking structure, comprising an optical lens body (1), characterized in that: A zoom ring (2) is rotatably mounted on the optical lens body (1), and a plurality of locking grooves (3) are provided on one side of the zoom ring (2); A fixed block (4) is fixedly mounted on the optical lens body (1), a movable hole is formed on the fixed block (4), a movable rod (5) is slidably mounted in the movable hole, a locking block (6) is fixedly mounted on one end of the movable rod (5), one end of the locking block (6) is inserted into the locking groove (3), a telescopic spring (7) is sleeved on the movable rod (5), and two ends of the telescopic spring (7) are respectively fixedly connected to the fixed block (4) and the locking block (6).

2. The optical lens with a self-locking structure according to claim 1, characterized in that: Spring rods (8) are symmetrically fixedly mounted on the optical lens body (1), and pressure plates (9) are fixedly mounted on the upper ends of the two spring rods (8). A support rod (10) is rotatably mounted on the pressure plate (9), and one end of the support rod (10) away from the pressure plate (9) is rotatably connected to one end of the moving rod (5).

3. The optical lens with a self-locking structure according to claim 1, characterized in that: A rectangular block (11) is fixedly mounted on the fixed block (4), an elastic rod (12) is horizontally fixedly mounted on the rectangular block (11), a plurality of positioning grooves (13) are provided on one side of the zoom ring (2), the plurality of positioning grooves (13) respectively correspond to the plurality of locking grooves (3), and one end of the elastic rod (12) is inserted into the positioning groove (13).

4. The optical lens with a self-locking structure according to claim 2, characterized in that: A rotating shaft is fixedly mounted on the side of the pressure plate (9), and an adjusting wheel (14) is rotatably mounted on the rotating shaft. The adjusting wheel (14) is located directly above the zoom ring (2).

5. The optical lens with a self-locking structure according to claim 4, characterized in that: An anti-skid sleeve is fixedly sleeved on the adjusting wheel (14), the anti-skid sleeve is made of rubber material, and anti-skid patterns are formed on the anti-skid sleeve.

6. The optical lens with a self-locking structure according to claim 1, characterized in that: A plurality of locking grooves (3) are circumferentially arranged on the side surface of the zoom ring (2), and the plurality of locking grooves (3) respectively correspond to a plurality of focal lengths adjusted by the zoom ring (2).

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