Waterproof sealing structure of injection molding optical lens
By combining a multi-layered sealing structure and materials, the problem of poor waterproof sealing in injection-molded optical lenses has been solved, achieving efficient and reliable sealing performance and ensuring stable operation and imaging quality of the lens in complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ZHIMINGCHENG ELECTRONICS CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-05-22
AI Technical Summary
Existing waterproof sealing structures for injection-molded optical lenses are simple in design and rely on glue for sealing, resulting in poor sealing performance and cumbersome installation, making it difficult to meet the requirements for efficient and reliable use.
It adopts a multi-layer sealing structure, including components such as lens sleeve, bottom fixing ring, sealing gasket, and upper fixing cap, combined with stainless steel and silicone rubber materials, and achieves firm fixation and complete sealing through threaded connection.
It achieves efficient and reliable waterproof sealing, ensuring stable operation of the lens in harsh environments and improving image quality and equipment reliability.
Smart Images

Figure CN224266893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection-molded optical lens technology, and in particular to a waterproof sealing structure for injection-molded optical lenses. Background Technology
[0002] In the application scenarios of injection-molded optical lenses, complex and ever-changing environmental conditions are often encountered, especially in outdoor, humid, or water-contact environments. Moisture intrusion can damage the lens's optical performance and internal components, affecting image quality and even causing equipment malfunction. Therefore, a waterproof sealing structure is crucial. It effectively prevents external moisture such as water vapor and droplets from entering the lens, ensuring stable operation even in harsh environments and guaranteeing the normal operation and imaging effect of the optical system. However, existing waterproof sealing structures for injection-molded optical lenses have revealed several shortcomings. Traditional waterproof sealing structures are relatively simple in design, often relying solely on adhesive for sealing and fixation. This single method results in unsatisfactory sealing effects and a cumbersome installation process, failing to meet the requirements of efficient and reliable use. Therefore, it is necessary to provide a new waterproof sealing structure for injection-molded optical lenses to solve the aforementioned technical problems. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a waterproof sealing structure for injection-molded optical lenses.
[0004] This utility model is achieved by the following technical solution: a waterproof sealing structure for injection-molded optical lenses, comprising: a sealing fixing component fixed to the inner bottom of a mounting fixing component for sealing, wherein the upper end of the mounting fixing component is threadedly connected to an upper sealing component;
[0005] The mounting and fixing assembly includes a lens sleeve, a bottom fixing ring, and a first sealing gasket;
[0006] The sealing and fixing assembly includes an optical lens, a bottom sealing ring, an upper sealing ring, a second sealing gasket, and a threaded fixing ring;
[0007] The upper sealing assembly includes an upper fixing cover, an inner fixing ring plate, and a third sealing gasket.
[0008] As a further embodiment of this utility model, a bottom fixing ring is connected to the inner side of the bottom of the lens sleeve, and a first sealing gasket is provided at the upper end of the bottom fixing ring.
[0009] As a further embodiment of this utility model, the inner side of the bottom of the lens sleeve is provided with a threaded fixing groove that cooperates with the sealing fixing component, the outer side of the upper end of the lens sleeve is provided with a threaded connection groove and a sealing gasket groove that cooperate with the upper sealing component, and the upper end of the bottom fixing ring is provided with a sealing groove that cooperates with the first sealing gasket.
[0010] As a further embodiment of this utility model, a bottom sealing ring is nested at the bottom of the optical lens, an upper sealing ring is connected to the upper end of the bottom sealing ring, a second sealing gasket is provided between the bottom sealing ring and the upper sealing ring, and a threaded fixing ring is provided at the upper end of the upper sealing ring.
[0011] As a further embodiment of this utility model, the bottom sealing ring has a sealing groove at its bottom that cooperates with a first sealing gasket, the top of the bottom sealing ring has a groove that cooperates with an optical lens and a second sealing gasket, the top sealing ring has a groove that cooperates with a second sealing gasket, the outer side of the threaded fixing ring is provided with a threaded connection structure, and the top of the threaded fixing ring has two sets of mounting holes.
[0012] As a further embodiment of this utility model, an internal fixing ring plate is connected to the inner side of the bottom of the upper fixing cover, and a groove for a third sealing gasket is provided at the upper end of the inner side of the upper fixing cover.
[0013] As a further embodiment of this utility model, the inner wall of the bottom of the upper fixing cover is provided with a threaded connection structure that matches the lens sleeve, the distance between the inner fixing ring plate and the upper fixing cover matches the lens sleeve, and the inner side of the bottom of the upper fixing cover is provided with a groove that matches the third sealing gasket.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model, by providing an installation and fixing component, allows the device to provide basic fixing conditions for fixing the sealing fixing component and the upper sealing component, thereby meeting the sealing and fixing requirements of the sealing fixing component and the upper sealing component.
[0016] 2. This utility model, by providing a sealing and fixing component, firmly fixes the optical lens to the bottom of the mounting and fixing component, allowing the device to be installed quickly while providing conditions for waterproof sealing, resulting in a better sealing effect.
[0017] 3. This utility model, by providing an upper sealing component, allows the upper sealing component to be firmly threadedly connected to the upper end of the lens sleeve, providing conditions for the complete sealing and fixation of the device, meeting the waterproof sealing requirements of the device, and making safe fixation very convenient. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention from the left side cross-section;
[0019] Figure 2 This is a schematic diagram of the overall structure of the left inclined surface of this utility model;
[0020] Figure 3 This is a schematic diagram of the installation and fixing components in this utility model;
[0021] Figure 4 This is a schematic diagram of the sealing and fixing assembly in this utility model;
[0022] Figure 5 This is a schematic diagram of the upper sealing component in this utility model.
[0023] Explanation of key symbols:
[0024] 1. Mounting and fixing assembly; 11. Lens sleeve; 12. Bottom fixing ring; 13. First sealing gasket; 2. Sealing and fixing assembly; 21. Optical lens; 22. Bottom sealing ring; 23. Upper sealing ring; 24. Second sealing gasket; 25. Threaded fixing ring; 3. Upper sealing assembly; 31. Upper fixing cover; 32. Internal fixing ring plate; 33. Third sealing gasket. Detailed Implementation
[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0026] Please combine Figures 1 to 5 The waterproof sealing structure of an injection-molded optical lens in this embodiment includes a sealing fixing component 2 fixed to the bottom inner side of the mounting fixing component 1 for sealing, and an upper sealing component 3 threadedly connected to the upper end of the mounting fixing component 1.
[0027] The mounting and fixing assembly 1 includes a lens sleeve 11, a bottom fixing ring 12, and a first sealing gasket 13;
[0028] The sealing and fixing assembly 2 includes an optical lens 21, a bottom sealing ring 22, an upper sealing ring 23, a second sealing gasket 24, and a threaded fixing ring 25;
[0029] The upper sealing assembly 3 includes an upper fixing cover 31, an inner fixing ring plate 32, and a third sealing gasket 33.
[0030] The bottom inner side of the lens sleeve 11 is connected to a bottom fixing ring 12, and a first sealing gasket 13 is provided at the upper end of the bottom fixing ring 12.
[0031] The lens sleeve 11 has a threaded fixing groove on the inner side of the bottom, which is matched with the sealing fixing component 2. The lens sleeve 11 has a threaded connection groove and a sealing gasket groove on the outer side of the upper end, which are matched with the upper sealing component 3. The bottom fixing ring 12 has a sealing groove on the upper end, which is matched with the first sealing gasket 13.
[0032] The bottom of the optical lens 21 is nested with a bottom sealing ring 22, and the upper end of the bottom sealing ring 22 is connected to an upper sealing ring 23. A second sealing gasket 24 is provided between the bottom sealing ring 22 and the upper sealing ring 23, and a threaded fixing ring 25 is provided at the upper end of the upper sealing ring 23.
[0033] The bottom sealing ring 22 has a sealing groove at its bottom that mates with the first sealing gasket 13. The upper end of the bottom sealing ring 22 has a groove that mates with the optical lens 21 and the second sealing gasket 24. The upper sealing ring 23 has a groove that mates with the second sealing gasket 24. The threaded fixing ring 25 has a threaded connection structure on its outer side. The upper end of the threaded fixing ring 25 has two sets of mounting holes.
[0034] The inner side of the bottom of the upper fixing cover 31 is connected to an internal fixing ring plate 32, and the upper end of the upper fixing cover 31 has a groove for matching the third sealing gasket 33.
[0035] The upper fixing cover 31 has a threaded connection structure on the bottom inner wall that matches the lens sleeve 11. The distance between the inner fixing ring plate 32 and the upper fixing cover 31 matches the lens sleeve 11. The upper fixing cover 31 has a groove on the bottom inner side that matches the third sealing gasket 33.
[0036] The main structure of the above-mentioned device is made of stainless steel, which has higher strength and better corrosion resistance; the first sealing gasket 13, the second sealing gasket 24, and the third sealing gasket 33 are made of silicone rubber, which plays a supplementary sealing role and further improves the sealing effect; the bottom sealing ring 22 and the upper sealing ring 23 are made of polytetrafluoroethylene, which has an extremely low coefficient of friction, excellent chemical stability and good sealing performance, which can reduce wear between components and effectively prevent moisture penetration.
[0037] The working principle of the waterproof sealing structure for injection-molded optical lenses provided by this utility model is as follows:
[0038] First step: Place the first sealing gasket 13 on the bottom fixing ring 12, place the bottom sealing ring 22 on the bottom fixing ring 12, nest the optical lens 21 on the bottom sealing ring 22, place the second sealing gasket 24 in the upper groove of the bottom sealing ring 22, and thread the threaded fixing ring 25 to secure it, so that the bottom sealing ring 22 and the upper sealing ring 23 firmly fix the optical lens 21. The first sealing gasket 13 and the second sealing gasket 24 provide a sealing and waterproof effect for the device.
[0039] The second step is to place the third sealing gasket 33 onto the lens sleeve 11, and then tighten the upper fixing cap 31 onto the lens sleeve 11. Once the installation is complete, the lens can be used to achieve the required waterproof sealing effect.
[0040] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0041] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A waterproof sealing structure for an injection-molded optical lens, characterized in that, include: A sealing fixing component is fixed to the inner bottom of the mounting fixing component for sealing, and the upper end of the mounting fixing component is threadedly connected to an upper sealing component; The mounting and fixing assembly includes a lens sleeve, a bottom fixing ring, and a first sealing gasket; The sealing and fixing assembly includes an optical lens, a bottom sealing ring, an upper sealing ring, a second sealing gasket, and a threaded fixing ring; The upper sealing assembly includes an upper fixing cover, an inner fixing ring plate, and a third sealing gasket.
2. The waterproof sealing structure for an injection-molded optical lens as described in claim 1, characterized in that, A bottom fixing ring is connected to the inner side of the bottom of the lens sleeve, and a first sealing gasket is provided at the upper end of the bottom fixing ring.
3. The waterproof sealing structure for an injection-molded optical lens as described in claim 2, characterized in that, The inner bottom of the lens sleeve has a threaded fixing groove that matches the sealing and fixing component. The outer upper end of the lens sleeve has a threaded connection groove and a sealing gasket groove that match the upper sealing component. The upper end of the bottom fixing ring has a sealing groove that matches the first sealing gasket.
4. The waterproof sealing structure for an injection-molded optical lens as described in claim 1, characterized in that, The bottom of the optical lens is nested with a bottom sealing ring, and the upper end of the bottom sealing ring is connected to an upper sealing ring. A second sealing gasket is provided between the bottom sealing ring and the upper sealing ring, and a threaded fixing ring is provided at the upper end of the upper sealing ring.
5. The waterproof sealing structure for an injection-molded optical lens as described in claim 4, characterized in that, The bottom sealing ring has a sealing groove at its bottom that matches the first sealing gasket. The top of the bottom sealing ring has a groove that matches the optical lens and the second sealing gasket. The top sealing ring has a groove that matches the second sealing gasket. The threaded fixing ring has a threaded connection structure on its outer side. The top of the threaded fixing ring has two sets of mounting holes.
6. The waterproof sealing structure for an injection-molded optical lens as described in claim 1, characterized in that, An internal fixing ring plate is connected to the inner side of the bottom of the upper fixing cover, and a groove for a third sealing gasket is provided at the upper inside of the upper fixing cover.
7. The waterproof sealing structure for an injection-molded optical lens as described in claim 6, characterized in that, The upper fixing cover has a threaded connection structure on the bottom inner wall that matches the lens sleeve. The distance between the inner fixing ring plate and the upper fixing cover matches the lens sleeve. The upper fixing cover has a groove on the bottom inner side that matches the third sealing gasket.