Wide-angle lens equipped with protection structure

Abstract

The utility model relates to the technical field of optical imaging, and especially relates to a wide-angle lens equipped with a protection structure. The wide-angle lens equipped with the protection structure comprises a lens barrel, a lens, a gland, a sliding frame, a buffer ring and a buffer spring, the left end of the lens barrel is clamped with the lens, the left side of the outside of the lens barrel is provided with external threads distributed in the circumferential direction, the inner side face of the gland is correspondingly provided with matched circumferential internal threads, the external threads and the internal threads are connected through a thread pair, and the sliding frame is clamped with the buffer ring. A sliding frame is slidably connected to the position, close to the lens, of the left end in the lens barrel, and a plurality of buffer springs distributed in the circumferential direction are connected between the sliding frame and the lens barrel. The damping structure composed of the sliding frame, the buffer ring and the buffer spring is arranged in the lens barrel, when the lens is subjected to external impact, the buffer ring drives the sliding frame to compress the buffer spring, and the impact force is absorbed by using the elastic deformation of the spring, so that the risk of damage of the lens due to impact can be effectively reduced, and the reliability and the service life of the wide-angle lens are remarkably improved.

Description

A wide-angle lens equipped with a protective structure Technical Field

[0001] This utility model relates to the field of optical imaging technology, and in particular to a wide-angle lens equipped with a protective structure. Background Technology

[0002] In the field of modern optical imaging, wide-angle lenses are widely used in security monitoring, photography, surveying, and many other fields due to their broad field of view and unique visual effects. However, because wide-angle lenses are used in a variety of complex and varied scenarios, they face threats from various external factors during practical applications, placing extremely high demands on their protective performance.

[0003] Existing wide-angle lenses have many shortcomings in terms of protective design. On the one hand, in terms of shock resistance, traditional lenses often use rigid fixing methods for the internal lens elements. When the lens is subjected to accidental collisions or vibrations, the external impact force can easily act directly on the lens elements, causing them to break or shift, thus affecting image quality and even rendering the lens unusable. On the other hand, in terms of dust and water resistance, although some lenses have simple protective structures, they are insufficient to meet the protection needs in complex environments. Dust, moisture, and other impurities can easily penetrate the lens and adhere to the lens surface, causing lens contamination, degrading optical performance, and severely shortening the lens's lifespan.

[0004] With the continuous expansion of applications for optical equipment, the requirements for the protective performance of wide-angle lenses are becoming increasingly stringent. How to effectively improve the shock resistance of wide-angle lenses while enhancing their dust and water resistance has become a pressing technical challenge. Therefore, developing a wide-angle lens equipped with a protective structure is of significant practical importance for ensuring stable lens performance, extending its service life, and improving the overall reliability of optical equipment. Summary of the Invention

[0005] To overcome the aforementioned drawbacks, the technical problem is to provide a wide-angle lens equipped with a protective structure.

[0006] The technical solution is as follows: A wide-angle lens equipped with a protective structure includes a lens barrel, a lens element, a pressure cap, a sliding frame, a buffer ring, and buffer springs. The lens element is snapped into the left end of the lens barrel. The left side of the lens barrel is machined with circumferentially distributed external threads. Correspondingly, the inner side of the pressure cap is provided with matching circumferentially internal threads. The two are connected by a threaded pair. The sliding frame is slidably connected to the left end of the lens barrel near the lens element. Multiple circumferentially distributed buffer springs are connected between the sliding frame and the lens barrel. The left end of the sliding frame is connected to the buffer ring. The right side of the lens element is in contact with the buffer ring.

[0007] Furthermore, it also includes a protective cover, with the protective cover fitted onto the left side of the pressure cap.

[0008] Furthermore, it also includes a cushioning pad, with the left end of the protective cover connected to the cushioning pad.

[0009] Furthermore, it also includes a support block, a button, a locking block, a return spring, and a fixing block. The front and rear sides of the protective cover are respectively connected to the support block, the button is slidably connected to the support block, the inner side of the button is connected to the locking block, and two return springs are connected between the locking block and the button. Correspondingly, the left side of the cover is fixedly connected to the fixing block at the position corresponding to the locking block. The locking block and the fixing block form a locking engagement structure.

[0010] Furthermore, the right side of the card block has a sloping structure to accommodate the installation of the protective cover.

[0011] Furthermore, it also includes a protective ring, damping springs, and a buffer layer. Multiple damping springs are evenly spaced along the circumference of the outer wall of the lens barrel. The outer ends of these damping springs are connected to a protective ring, so that the protective ring is coaxially covered outside the lens barrel. An elastic buffer layer is fixedly connected to the outer side of the protective ring.

[0012] The beneficial effects are as follows: 1. By setting a shock-absorbing structure consisting of a sliding frame, a buffer ring, and a buffer spring inside the lens barrel, when the lens is subjected to external impact, the buffer ring drives the sliding frame to compress the buffer spring, and the elastic deformation of the spring absorbs the impact force, which can effectively reduce the risk of lens breakage due to impact and significantly improve the reliability and service life of the wide-angle lens.

[0013] 2. The lens barrel and the pressure cap are connected by a threaded pair, which facilitates the fastening and disassembly of the lens; the snap-fit ​​locking mechanism of the protective cap enables quick installation through the snap-fit ​​of the snap-fit ​​block and the fixed block, and can be easily disassembled by pressing the button. The operation is simple and greatly improves the convenience of maintenance and installation during lens use.

[0014] 3. The protective cover on the left side of the pressure cap works with the buffer pad to form a sealed cover. When the wide-angle lens is not in use, it can effectively prevent dust, water vapor and other external impurities from entering, providing dust and water protection for the lens, ensuring the stability of the optical performance of the wide-angle lens, and reducing the problem of image quality degradation caused by dust and water vapor.

[0015] 4. The protective ring, damping spring, and buffer layer on the outside of the lens barrel constitute the outer protective component. When the wide-angle lens is installed in optical equipment, the buffer layer first absorbs part of the impact force, and the damping spring further buffers it, forming a multi-layer protection system. This effectively reduces the direct effect of external forces on the lens barrel, enhances the overall impact resistance of the wide-angle lens, and reduces the impact of external collisions on the internal structure of the wide-angle lens. Attached Figure Description

[0016] Figure 1 is a three-dimensional structural diagram of this utility model.

[0017] Figure 2 is a cross-sectional view of the lens barrel, lens, and pressure cap of this utility model.

[0018] Figure 3 is a cross-sectional view of the protective cover, buffer pad and support block components of this utility model.

[0019] Figure 4 is a three-dimensional structural diagram of the protective ring, damping spring and buffer layer of this utility model.

[0020] The parts and their numbers in the diagram are as follows: 1_lens, 2_lens, 3_pressure cap, 4_sliding bracket, 5_buffer ring, 6_buffer spring, 7_protective cover, 8_buffer pad, 9_support block, 10_button, 11_block, 12_return spring, 13_fixing block, 14_protective ring, 15_vibration damping spring, 16_buffer layer. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0022] Example: A wide-angle lens equipped with a protective structure, as shown in Figures 1-2, includes a lens barrel 1, a lens element 2, a pressure cap 3, a sliding frame 4, a buffer ring 5, and a buffer spring 6. The lens element 2 is snapped onto the left end of the lens barrel 1, facilitating the installation and removal of the lens element 2. The left side of the lens barrel 1 is machined with circumferentially distributed external threads, and correspondingly, the inner side of the pressure cap 3 is provided with matching circumferential internal threads. The two are connected by a threaded pair. By tightening the pressure cap 3, a fastening force can be applied to the lens element 2 along the axial direction of the lens barrel 1, achieving stable fixation of the lens element 2. The left end of the lens barrel 1 is slidably connected near the lens element 2. The lens has a sliding frame 4, and multiple circumferentially distributed buffer springs 6 are connected between the sliding frame 4 and the lens barrel 1. A buffer ring 5 is connected to the left end of the sliding frame 4, and the right side of the lens 2 is in contact with the buffer ring 5. When the wide-angle lens is subjected to external impact during use, the impact force on the lens 2 will be transmitted to the buffer ring 5, causing the sliding frame 4 to slide along the axial direction of the lens barrel 1, thereby compressing the buffer springs 6. Through the elastic deformation of the buffer springs 6, the external impact force is absorbed and buffered, providing shock absorption protection for the lens 2, effectively reducing the risk of the lens 2 being damaged by impact, and significantly improving the reliability and service life of the wide-angle lens.

[0023] As shown in Figures 1-3, it also includes a protective cover 7 and a buffer pad 8. The protective cover 7 is fitted onto the left side of the pressure cap 3. When the wide-angle lens is not in use, the protective cover 7 can effectively block the intrusion of external impurities such as dust and water vapor, thereby achieving dust and water protection for the lens 2 and further improving the protective performance of the wide-angle lens. The buffer pad 8 is connected to the left end of the protective cover 7, which can cushion the protective cover 7, prevent the protective cover 7 from being damaged or its outer surface from being worn, and also offset the impact force.

[0024] As shown in Figures 1 and 3, the protective cover 7 also includes a support block 9, a button 10, a locking block 11, a return spring 12, and a fixing block 13. Support blocks 9 are welded to the front and rear sides of the protective cover 7, respectively. A button 10 is slidably connected to the support block 9. A locking block 11 is welded to the inner side of the button 10. Two return springs 12 connect the locking block 11 and the button 10. Correspondingly, a fixing block 13 is fixedly connected to the left side of the pressure cover 3 at a position corresponding to the locking block 11. The locking block 11 and the fixing block 13 form a locking engagement structure. When the protective cover 7 needs to be removed, press both buttons 10 simultaneously to move the locking block 11 inward against the spring force of the return spring 12, releasing the locking state between the locking block 11 and the fixing block 13. Then, move the protective cover 7 to the left along the axial direction to disengage the protective cover 7 from the pressure cover 3. At this time, the locking block 11 and the fixing block 13... After the button 10 is released, the return spring 12 resets, causing the locking block 11 and the button 10 to return to their initial positions. The right side of the locking block 11 has a sloping structure with an optimized angle to accommodate the installation of the protective cover 7. When installing the protective cover 7, align the protective cover 7 with the pressure cover 3 and align the locking block 11 with the fixing block 13. As the protective cover 7 approaches the pressure cover 3, the sloping surface of the locking block 11 contacts the fixing block 13 and slides relative to it, forcing the locking block 11 to move inward and compress the return spring 12. The button 10 moves synchronously. When the locking block 11 moves to be fully aligned with the fixing block 13, the return spring 12 restores its elastic deformation, pushing the locking block 11 and the button 10 to move outward, so that the locking block 11 and the fixing block 13 can quickly engage and lock, achieving convenient and quick installation of the protective cover 7.

[0025] As shown in Figures 1 and 4, the lens also includes a protective ring 14, damping springs 15, and a buffer layer 16. Multiple damping springs 15 are evenly spaced along the circumferential direction on the outer wall of the lens barrel 1. The outer ends of these damping springs 15 are connected to a protective ring 14, so that the protective ring 14 is coaxially covered on the outside of the lens barrel 1. An elastic buffer layer 16 is fixedly connected to the outer side of the protective ring 14 by an adhesive process. The buffer layer 16 is made of highly elastic rubber material. When the wide-angle lens is installed in the optical equipment, the protective ring 14, damping springs 15, and buffer layer 16 work together to form a multi-layer protection system. When subjected to external impact, the buffer layer 16 first absorbs part of the impact force, and then the damping springs 15 further buffer the impact through elastic deformation, effectively reducing the direct effect of external force on the lens barrel 1 and improving the overall impact resistance of the wide-angle lens.

Claims

1. A wide-angle lens equipped with a protective structure, characterized in that, It includes a lens barrel (1), a lens (2), a cap (3), a sliding frame (4), a buffer ring (5), and a buffer spring (6). The lens (2) is snapped into the left end of the lens barrel (1). The left side of the lens barrel (1) is machined with circumferentially distributed external threads. Correspondingly, the inner side of the cap (3) is provided with matching circumferential internal threads. The two are connected by a threaded pair. The sliding frame (4) is slidably connected to the left end of the lens barrel (1) near the lens (2). Multiple buffer springs (6) are circumferentially distributed between the sliding frame (4) and the lens barrel (1). The left end of the sliding frame (4) is connected to the buffer ring (5). The right side of the lens (2) is in contact with the buffer ring (5).

2. The wide-angle lens equipped with a protective structure according to claim 1, characterized by, It also includes a protective cover (7), and the protective cover (7) is fitted onto the left side of the pressure cap (3).

3. The wide-angle lens equipped with a protective structure according to claim 2, characterized in that, It also includes a cushioning pad (8), and the left end of the protective cover (7) is connected to the cushioning pad (8).

4. A wide-angle lens equipped with a protective structure according to claim 2, characterized in that, It also includes a support block (9), a button (10), a locking block (11), a return spring (12), and a fixing block (13). The front and rear sides of the protective cover (7) are respectively connected to the support block (9). The button (10) is slidably connected to the support block (9). The locking block (11) is connected to the inside of the button (10). Two return springs (12) are connected between the locking block (11) and the button (10). Correspondingly, the left side of the pressure cover (3) is fixedly connected to the fixing block (13) at the position corresponding to the locking block (11). The locking block (11) and the fixing block (13) form a locking engagement structure.

5. A wide-angle lens equipped with a protective structure according to claim 4, characterized in that, The right side of the card block (11) is a sloping structure to accommodate the installation of the protective cover (7).

6. The wide-angle lens equipped with a protective structure according to claim 1, characterized by, It also includes a protective ring (14), a damping spring (15) and a buffer layer (16). Multiple damping springs (15) are evenly spaced along the circumferential direction on the outer wall of the lens barrel (1). The outer ends of these damping springs (15) are connected to a protective ring (14), so that the protective ring (14) is coaxially covered outside the lens barrel (1). An elastic buffer layer (16) is fixedly connected to the outer side of the protective ring (14).

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