Optical lens with self-locking structure
Patent Information
- Application Number
- CN202522792718.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-30
AI Technical Summary
Traditional optical lens mounts rely on a single point or single snap-fit structure for locking force, lacking continuous preload and self-locking behavior, making them prone to detachment during impact, vibration, handling, or installation and adjustment.
An optical lens with a self-locking structure was designed, including a self-locking mechanism and a sealing mechanism. The elastic reset of the return spring ensures that the lens frame and the mounting base fit tightly together, and the friction between the sealing block and the slot resists impact and vibration, thereby improving the installation stability.
It reduces the risk of optical lenses falling off during transportation, installation, or operation, and improves the connection stability and sealing between the lens and the camera equipment.
Smart Images

Figure CN224934219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical lens technology, and in particular to an optical lens with a self-locking structure. Background Technology
[0002] An optical lens is an imaging element composed of multiple pieces of glass or other transparent materials arranged with a certain curvature. Through the refraction and dispersion of several lenses, it can converge light from an object onto a photosensitive surface to form a clear image. Traditional lenses usually use a fixed focal length or zoom structure. The structure is simple, but the control of aberrations requires careful design. To improve image quality, coatings, coatings, and special materials are often used between the lenses to reduce reflection and increase light transmittance. Aberrations and distortions are reduced by optimizing the curvature, thickness, and mounting spacing of the lenses.
[0003] However, the locking force of traditional lenses in the mount mainly relies on a single point or a single snap-fit structure, lacking continuous preload and self-locking behavior. This makes them prone to micro-movements during impacts, vibrations, handling, or installation adjustments, increasing the probability of them falling off.
[0004] Therefore, those skilled in the art have provided an optical lens with a self-locking structure to solve the problems mentioned in the background art. Summary of the Invention
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an optical lens with a self-locking structure. This optical lens is equipped with a self-locking mechanism, which, under the elastic reset of the return spring, squeezes the lens frame to fit more tightly with the locking seat on the camera device. This tightly fits the locking block and the locking seat together, reducing the possibility of the optical lens accidentally falling off. In addition, the friction between the sealing block and the sealing groove can resist horizontal and vertical impacts and vibrations, reducing the risk of accidental lens detachment during transportation, installation, or operation.
[0006] To achieve the above objectives, the present invention provides the following technical solution: An optical lens with a self-locking structure includes a main lens. A self-locking mechanism is provided at the lower end of the main lens. The self-locking mechanism includes a connecting shell. Multiple limiting grooves are formed on the upper end of the inner wall of the connecting shell. A limiting slide rod is fixedly connected to the middle of the bottom surface of the limiting groove. A return spring is sleeved on the upper end of the outer wall of the limiting slide rod. A compression lens frame is slidably connected to the inner wall of the connecting shell. Multiple limiting sliders are fixedly connected to the upper end of the outer wall of the compression lens frame. A sealing groove is formed on the lower surface of the compression lens frame. A locking groove is formed on the lower end of the inner wall of the connecting shell. Multiple locking seats are fixedly connected to the lower end of the inner wall of the locking groove. A locking seat is engaged with the lower surface of the connecting shell. A connecting groove is formed on the outer side of the upper surface of the locking seat. Multiple locking blocks are fixedly connected to the middle of the inner wall of the connecting groove. A sealing block is fixedly connected to the upper surface of the locking seat. The self-locking mechanism is equipped with a sealing mechanism, which includes a positioning slide groove and a positioning pressure plate. A compression spring is fixedly connected to the lower end of the inner wall of the positioning slide groove. Multiple positioning slide rods are fixedly connected to the lower surface of the positioning pressure plate, and a sealing pressure pad is fixedly connected to the upper surface of the positioning pressure plate.
[0007] Through the above technical solution, the optical lens is equipped with a sealing mechanism. Under the elastic reset of the compression spring, the sealing pad can be tightly sealed and frictionally fitted with the connecting shell. The locking mechanism, together with the self-locking mechanism, can further improve the tightness and firmness of the main lens during installation.
[0008] Furthermore, the connecting shell is fixedly connected to the lower surface of the main lens; The above technical solution enables the main lens to be mounted on the mounting bracket via a connecting shell.
[0009] Furthermore, the limiting slider is slidably connected to the limiting slide rod; The above technical solution enables the compression frame to retract or extend relatively smoothly within the connecting shell.
[0010] Furthermore, a first lens is fixedly connected to the middle of the inner wall of the extrusion frame, and a second lens is fixedly connected to the center of the upper surface of the snap-fit base; The above technical solution enables the first and second lenses to connect the shooting device and the main lens.
[0011] Furthermore, the sealing groove and the sealing block engage in a snap-fit relationship; The above technical solution enables the mounting bracket to fit tightly against the extruded frame.
[0012] Furthermore, the locking block engages with the locking seat; The above technical solution enables the connecting shell to be securely and tightly snapped into the snap-fit socket.
[0013] Furthermore, the positioning grooves are respectively formed on the inner bottom surface of the connecting slot, and the positioning rod is slidably connected to the positioning groove; Through the above technical solution, the positioning pressure plate can be compressed and reset by the compression spring in the sliding connection between the positioning slide rod and the positioning slide groove.
[0014] Furthermore, the positioning pressure plate is slidably connected to the inner wall of the connecting slot; The above technical solution allows the connecting shell to be inserted into the card seat while the sealing gasket is tightly fitted together by the positioning pressure plate.
[0015] This utility model has the following beneficial effects: 1. The optical lens with a self-locking structure proposed in this utility model, compared with most traditional optical lenses, is equipped with a self-locking mechanism. Under the elastic reset of the return spring, the lens frame can be squeezed to fit more tightly with the locking seat on the camera equipment, thereby tightly fitting the locking block and the locking seat together, reducing the possibility of the optical lens accidentally falling off. In addition, the friction between the sealing block and the sealing groove can resist horizontal and vertical impacts and vibrations, reducing the risk of accidental lens falling off during transportation, installation or operation.
[0016] 2. The optical lens with a self-locking structure proposed in this utility model has a sealing mechanism compared with most traditional optical lenses. Under the elastic reset of the compression spring, the sealing pad can be tightly sealed and frictionally fitted with the connecting shell. The locking mechanism can further improve the tightness and firmness of the main lens during installation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of an optical lens with a self-locking structure proposed in this utility model; Figure 2 This is a schematic diagram of the self-locking mechanism of an optical lens with a self-locking structure proposed in this utility model; Figure 3 This is a schematic diagram of the connecting shell structure of an optical lens with a self-locking structure proposed in this utility model; Figure 4 This is a schematic diagram of a mounting bracket structure for an optical lens with a self-locking mechanism proposed in this utility model.
[0018] Legend: 1. Main shot; 2. Self-locking mechanism; 201. Connecting shell; 202. Limiting groove; 203. Limiting slide rod; 204. Return spring; 205. Pressing frame; 206. Limiting slider; 207. First lens; 208. Sealing slot; 209. Locking slot; 2010. Locking seat; 2011. Snap-fit seat; 2012. Second lens; 2013. Connecting slot; 2014. Locking block; 2015. Sealing block; 3. Sealing mechanism; 301. Positioning slide groove; 302. Compression spring; 303. Positioning pressure plate; 304. Positioning slide rod; 305. Sealing gasket. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] One embodiment of this utility model is provided: Reference Figure 1 , 2 3. An optical lens with a self-locking structure, comprising a main lens 1, a self-locking mechanism 2 at the lower end of the main lens 1, the self-locking mechanism 2 including a connecting shell 201, a plurality of limiting grooves 202 formed on the upper end of the inner wall of the connecting shell 201, a limiting slide rod 203 fixedly connected to the middle of the bottom surface of the limiting groove 202, a return spring 204 sleeved on the upper end of the outer wall of the limiting slide rod 203, a compression lens frame 205 slidably connected to the inner wall of the connecting shell 201, and a plurality of limiting sliders 206 fixedly connected to the upper end of the outer wall of the compression lens frame 205. A sealing groove 208 is provided on the lower surface of the extrusion frame 205, a locking groove 209 is provided on the lower end of the inner wall of the connecting shell 201, a plurality of locking seats 2010 are fixedly connected to the lower end of the inner wall of the locking groove 209, a snap-fit seat 2011 is snap-fitted on the lower surface of the connecting shell 201, a connecting groove 2013 is provided on the outer side of the upper surface of the snap-fit seat 2011, a plurality of locking blocks 2014 are fixedly connected to the middle of the inner wall of the connecting groove 2013, and a sealing block 2015 is fixedly connected to the upper surface of the snap-fit seat 2011. The self-locking mechanism 2 is internally equipped with a sealing mechanism 3, which includes a positioning slide 301 and a positioning pressure plate 303. A compression spring 302 is fixedly connected to the lower end of the inner wall of the positioning slide 301. Multiple positioning slide rods 304 are fixedly connected to the lower surface of the positioning pressure plate 303. A sealing pad 305 is fixedly connected to the upper surface of the positioning pressure plate 303. The optical lens is equipped with a sealing mechanism 3. Under the elastic reset of the compression spring 302, the sealing pad 305 can be tightly sealed and frictionally fitted with the connecting shell 201. The locking of the self-locking mechanism 2 can further improve the tightness and firmness of the main lens 1 during installation.
[0021] Reference Figure 2 , 3 4. The connecting shell 201 is fixedly connected to the lower surface of the main lens 1, so that the main lens 1 can be snapped onto the mounting base 2011 through the connecting shell 201. The limiting slider 206 is slidably connected to the limiting slider 203, so that the compression frame 205 can retract or extend relatively smoothly within the connecting shell 201. The first lens 207 is fixedly connected to the middle of the inner wall of the compression frame 205, and the second lens 2012 is fixedly connected to the center of the upper surface of the mounting base 2011, so that the first lens 207 and the second lens 2012 can connect the shooting device and the main lens 1. The sealing slot 208 and the sealing block 2015 engage, so that the mounting base 2011 can fit tightly against the compression frame 205. The locking block 2014 engages with the locking base 2010, so that the connecting shell 201 can be snapped tightly and firmly within the mounting base 2011.
[0022] Reference Figure 2 , 3 4. Positioning grooves 301 are respectively opened on the inner bottom surface of the connecting slot 2013. Positioning rod 304 is slidably connected to positioning groove 301, so that positioning pressure plate 303 can be compressed and reset by compression spring 302 in the sliding connection between positioning rod 304 and positioning groove 301. Positioning pressure plate 303 is slidably connected to the inner wall of connecting slot 2013, so that while connecting shell 201 is inserted into the card seat 2011, it can be controlled by positioning pressure plate 303 to tightly fit sealing gasket 305 together.
[0023] Working principle: First, the mounting bracket 2011 is fixedly installed on the shooting equipment. The connecting shell 201 on the main lens 1 is aligned with the mounting bracket 2011, so that the locking slot 209 is aligned with the locking block 2014. As the main lens 1 is pressed, the lens frame 205 is compressed and retracted into the connecting shell 201 under the elastic action of the return spring 204. Then, the connecting shell 201 is rotated, causing the locking block 2014 to engage with the locking bracket 2010 (the trapezoidal block on the locking block 2014 and the trapezoidal slot on the locking bracket 2010 can prevent displacement caused by slight vibration). The main lens 1 is installed and locked by the elastic compression of the return spring 204 and the contact friction of the sealing block 2015 and the sealing slot 208. At the same time, the sealing pressure pad 305 can be tightly contacted and rubbed with the connecting shell 201 under the elastic compression of the compression spring 302, thereby improving the sealing performance of the connection and reducing the possibility of displacement through compression friction.
[0024] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0025] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An optical lens with a self-locking structure, comprising a main lens (1), characterized in that: The lower end of the main lens (1) is provided with a self-locking mechanism (2). The self-locking mechanism (2) includes a connecting shell (201). The upper end of the inner wall of the connecting shell (201) is provided with multiple limiting grooves (202). A limiting slide rod (203) is fixedly connected to the middle of the bottom surface of the limiting groove (202). A return spring (204) is sleeved on the upper end of the outer wall of the limiting slide rod (203). A compression lens frame (205) is slidably connected to the inner wall of the connecting shell (201). Multiple limiting sliders (206) are fixedly connected to the upper end of the outer wall of the compression lens frame (205). A sealing groove (208) is provided on the lower surface of the connecting shell (201), and a locking groove (209) is provided at the lower end of the inner wall of the connecting shell (201). A plurality of locking seats (2010) are fixedly connected to the lower end of the inner wall of the locking groove (209). A snap-fit seat (2011) is snap-fitted on the lower surface of the connecting shell (201). A connecting groove (2013) is provided on the outer side of the upper surface of the snap-fit seat (2011). A plurality of locking blocks (2014) are fixedly connected to the middle of the inner wall of the connecting groove (2013). A sealing block (2015) is fixedly connected to the upper surface of the snap-fit seat (2011). The self-locking mechanism (2) is provided with a sealing mechanism (3). The sealing mechanism (3) includes a positioning slide (301) and a positioning pressure plate (303). A compression spring (302) is fixedly connected to the lower end of the inner wall of the positioning slide (301). A plurality of positioning slide rods (304) are fixedly connected to the lower surface of the positioning pressure plate (303). A sealing pressure pad (305) is fixedly connected to the upper surface of the positioning pressure plate (303).
2. An optical lens with a self-locking structure according to claim 1, characterized in that: The connecting shell (201) is fixedly connected to the lower surface of the main lens (1).
3. An optical lens with a self-locking structure according to claim 1, characterized in that: The limiting slider (206) is slidably connected to the limiting slider (203).
4. An optical lens with a self-locking structure according to claim 1, characterized in that: The first lens (207) is fixedly connected to the middle of the inner wall of the extrusion frame (205), and the second lens (2012) is fixedly connected to the center of the upper surface of the snap-fit seat (2011).
5. An optical lens with a self-locking structure according to claim 1, characterized in that: The sealing slot (208) engages with the sealing block (2015).
6. An optical lens with a self-locking structure according to claim 1, characterized in that: The locking block (2014) engages with the locking seat (2010).
7. An optical lens with a self-locking structure according to claim 1, characterized in that: The positioning slide grooves (301) are respectively opened on the inner bottom surface of the connecting slot (2013), and the positioning slide rod (304) is slidably connected to the positioning slide grooves (301).
8. An optical lens with a self-locking structure according to claim 1, characterized in that: The positioning plate (303) is slidably connected to the inner wall of the connecting slot (2013).
