Shock-resistant protective pressing ring

Abstract

The utility model relates to the technical field of optical lenses, in particular to an anti-impact protective pressing ring, which comprises an inner ring, a group of buffer rings are nested on the outer side of the inner ring, the buffer rings are made of silica gel materials, an outer ring is nested on the outer side of the buffer rings, the protective pressing ring further comprises a group of hold-down rings, and the hold-down rings are made of silica gel materials. And internal threads are arranged on the surface of the inner wall of the inner ring. According to the utility model, the buffer ring is nested on the outer side of the inner ring, the outer ring is nested on the outer side of the buffer ring, the outer ring is fixedly installed inside the lens barrel, and the compression ring is used to compress and fix the lens in the inner ring, so that the elastic-plastic buffer ring forms an impact-resistant buffer layer between the inner ring and the outer ring; when the lens is impacted and transmitted to the outer ring on the outermost side, the buffer ring elastically deforms under the impact and converts the impacted force into elastic potential energy, the inner ring and the lens in the inner ring are damped and buffered, and the lens in the inner ring is prevented from being broken due to large impact.

Description

Technical Field

[0001] This utility model relates to the field of optical lens technology, and more specifically, to an impact-resistant protective pressure ring. Background Technology

[0002] The lens retainer is an important component of a photographic lens, mainly used to fix the lens elements inside the lens. Its quality directly affects the durability and reliability of the lens in harsh environments. An ideal retainer should have a small coefficient of thermal expansion, be able to withstand high and cold weather, be sturdy and durable, have a stable structure, and have good sealing properties. This can ensure that the lens elements will not shift or deform due to high temperature, cold or impact, and can also effectively prevent dust or moisture from entering the lens.

[0003] Existing lens retaining rings typically lack impact resistance. When the retaining ring fixes the lens in the lens barrel, it cannot buffer the impact force on the lens, making the lens prone to breakage under impact. Utility Model Content

[0004] This invention provides an impact-resistant protective ring, which solves the technical problem that existing lens rings cannot buffer the impact force on the lens.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] An impact-resistant protective pressure ring includes an inner ring, a set of buffer rings nested on the outer side of the inner ring, the buffer rings being made of silicone material, an outer ring nested on the outer side of the buffer rings, and a set of clamping rings. The inner wall surface of the inner ring is provided with an internal thread, and the outer wall surface of the clamping ring is provided with an external thread that mates with the internal thread.

[0007] Furthermore, the outer ring is provided with mounting holes, which are distributed in multiple sets at equal intervals. The positions of the multiple sets of mounting holes correspond one-to-one with the screw holes on the mounting groove inside the lens barrel.

[0008] Furthermore, a first slot is provided on the inner side of the outer ring, and a second slot is provided on the outer side of the inner ring.

[0009] Furthermore, structural patterns are provided on the inner walls of the first card slot and the second card slot, and the structural patterns are distributed in multiple sets in a ring shape on the inner wall surface of the first card slot and the second card slot.

[0010] Furthermore, a first washer is provided inside the inner ring, and a second washer is provided on the clamping ring.

[0011] Furthermore, the sidewall of the clamping ring is provided with slots, which are arranged in two symmetrical sets.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by nesting the buffer ring on the outside of the inner ring and the outer ring on the outside of the buffer ring, and then fixing the outer ring inside the lens barrel and using the clamping ring to press and fix the lens in the inner ring, the elastic buffer ring will form an impact-resistant buffer layer between the inner and outer rings. When the lens is impacted, the impact is transmitted to the outermost outer ring, and the buffer ring will undergo elastic deformation under the impact to convert the impact force into elastic potential energy, thereby forming a shock-absorbing buffer effect on the inner ring and the lens inside it, and preventing the lens inside the inner ring from breaking due to a large impact. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the inner ring and the clamping ring in this utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the clamping ring and the second washer in this utility model.

[0018] In the diagram: 1. Inner ring; 2. Buffer ring; 3. Outer ring; 4. Compression ring; 5. Internal thread; 6. External thread; 7. Mounting hole; 8. First slot; 9. Second slot; 10. First washer; 11. Second washer; 12. Construction pattern; 13. Slot. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-4 An impact-resistant protective ring includes an inner ring 1, the inside of which is used to place a lens. A set of buffer rings 2 are nested on the outside of the inner ring 1. The buffer rings 2 are made of silicone material and have good elasticity. An outer ring 3 is nested on the outside of the buffer rings 2. The outer ring 3 can be fixedly installed inside the lens barrel. At this time, the buffer rings 2 form an impact-resistant buffer layer between the inner ring 1 and the outer ring 3. The protective ring also includes a set of clamping rings 4. The inner wall surface of the inner ring 1 is provided with an internal thread 5. The outer wall surface of the clamping ring 4 is provided with an external thread 6 that is threaded with the internal thread 5. By rotating the clamping ring 4, the clamping ring 4 can be screwed into the inside of the inner ring 1, thereby pressing the edge of the lens inside the inner ring 1 and fixing it inside the inner ring 1 so that it will not fall out.

[0022] In use, the buffer ring 2 is nested outside the inner ring 1, and the outer ring 3 is nested outside the buffer ring 2. The outer ring 3 is fixedly installed inside the lens barrel. Then, the lens is placed inside the inner ring 1, and the edge of the lens will fit against the inner wall of the inner ring 1. Then, the clamping ring 4 is used to cover the inner ring 1 and rotated. At this time, the clamping ring 4 can be rotated and screwed into the inner ring 1 through the threaded engagement between the internal thread 5 and the external thread 6. This allows the clamping ring 4 to press and fix the edge of the lens in the inner ring 1, preventing the lens from falling out of the inner ring 1 under the action of the clamping ring 4. When the lens is dislodged, the elastic buffer ring 2 forms an impact-resistant buffer layer between the inner ring 1 and the outer ring 3. When the lens is impacted, the impact is transmitted to the outermost ring 3, and the buffer ring 2 will undergo elastic deformation under the impact to convert the impact force into elastic potential energy, thereby providing shock absorption and buffering for the inner ring 1 and the lens inside it, preventing the lens inside the inner ring 1 from breaking due to a large impact. The inner ring 1 can also be unscrewed by rotating and twisting the clamping ring 4, at which point the lens can be removed from the inside of the inner ring 1 for replacement.

[0023] For further details, please refer to Figure 1-4 The outer ring 3 has mounting holes 7. Multiple sets of mounting holes 7 are evenly distributed on the mounting holes 7. The positions of the multiple sets of mounting holes 7 correspond one-to-one with the screw holes on the mounting groove inside the lens barrel. When the outer ring 3 is placed inside the lens barrel, the screw can be passed through the mounting holes 7 and screwed into the screw holes. At this time, the outer ring 3 can be easily fixed inside the lens barrel by the screw.

[0024] For further details, please refer to Figure 1-4 The outer ring 3 has a first slot 8 on its inner side and a second slot 9 on its outer side. When the buffer ring 2 is nested on the outer side of the inner ring 1 and the outer ring 3 is nested on the outer side of the buffer ring 2, the outer edge and inner edge of the buffer ring 2 are respectively embedded in the first slot 8 and the second slot 9, so that the buffer ring 2 can be stably kept between the inner ring 1 and the outer ring 3 without falling off.

[0025] For further details, please refer to Figure 1-4 The inner walls of the first slot 8 and the second slot 9 are provided with structural textures 12. The structural textures 12 are arranged in multiple groups in a ring shape on the inner wall surface of the first slot 8 and the second slot 9. The outer edge and inner edge of the buffer ring 2 are respectively embedded in the first slot 8 and the second slot 9. At this time, the structural textures 12 will enhance the frictional resistance between the inner ring 1 and the inner edge of the buffer ring 2 and between the outer ring 3 and the outer edge of the buffer ring 2, thereby preventing the inner ring 1, the buffer ring 2 and the outer ring 3 from rotating relative to each other under the action of external force, so that the lens installed inside the inner ring 1 can be more stably located in the lens barrel.

[0026] For further details, please refer to Figure 1-4 The inner ring 1 has a first washer 10 inside, and the clamping ring 4 has a second washer 11. The first washer 10 and the second washer 11 are made of flexible materials such as rubber. When the clamping ring 4 presses and fixes the edge of the lens in the inner ring 1, the first washer 10 and the second washer 11 will tightly abut against the upper and lower surfaces of the lens edge, effectively reducing the installation gap of the lens. At the same time, the soft first washer 10 and the second washer 11 can prevent the edge of the lens from being crushed.

[0027] For further details, please refer to Figure 1-4 The clamping ring 4 has a slot 13 on its side wall. The slots 13 are arranged in two symmetrical groups. By inserting the pliers into the slots 13, the clamping ring 4 inside the inner ring 1 can be easily rotated and twisted, making it easy to disassemble and assemble the clamping ring 4.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An impact protection ring comprising an inner ring (1), characterized in that, The outer side of the inner ring (1) is nested with a set of buffer rings (2), the buffer rings (2) are made of silica gel material, the outer side of the buffer rings (2) is nested with an outer ring (3), the protective pressing ring further comprises a set of pressing rings (4), the inner wall surface of the inner ring (1) is provided with an internal thread (5), the outer wall surface of the pressing ring (4) is provided with an external thread (6) which is threadedly matched with the internal thread (5).

2. The impact protection bump ring of claim 1, wherein, A mounting hole (7) is formed on the outer ring (3), the mounting holes (7) are equidistantly distributed on the mounting hole (7), and a plurality of mounting holes (7) are one-to-one corresponding to the screw hole positions on the mounting groove inside the lens barrel.

3. The impact protection bump ring of claim 1, wherein, The inner side of the outer ring (3) is provided with a first clamping groove (8), and the outer side of the inner ring (1) is provided with a second clamping groove (9).

4. The impact protection bump ring of claim 3, wherein, The inner wall of the first clamping groove (8) and the second clamping groove (9) is provided with a structure thread (12), and the structure thread (12) is annularly distributed on the inner wall surface of the first clamping groove (8) and the second clamping groove (9).

5. The impact protection bump ring of claim 1, wherein, The inner side of the inner ring (1) is provided with a first gasket (10), and the pressing ring (4) is provided with a second gasket (11).

6. The impact protection bump ring of claim 1, wherein, The side wall of the pressing ring (4) is provided with an insertion slot (13), and the insertion slots (13) are symmetrically arranged in two groups.

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