Corrosion-resistant lens rear focus gasket

Abstract

The utility model relates to the technical field of lens rear focus gaskets, in particular to a corrosion-resistant lens rear focus gasket, which comprises a gasket body, a corrosion-resistant coating is coated on the surface of the gasket body, the corrosion-resistant coating is an epoxy resin coating, an outer silica gel ring is sleeved on the outer side of the gasket body, an inner silica gel ring is sleeved on the inner side of the gasket body, and the inner silica gel ring is sleeved on the inner side of the gasket body. A first cavity is formed in the inner side of the inner silica gel ring, a second cavity is formed in the inner side of the outer silica gel ring, a plurality of first protruding blocks are connected to the inner side of the inner silica gel ring in a glued mode, and a plurality of second protruding blocks are connected to the inner side of the outer silica gel ring in a glued mode. A plurality of first reserved grooves and a plurality of second reserved grooves are formed in the inner side and the outer side of the gasket body respectively. Through the above structure, the corrosion-resistant coating can provide good protection for the lens rear focus gasket, and the inner silica gel ring and the outer silica gel ring not only improve the corrosion-resistant effect of the gasket body in the use process, but also effectively protect the corrosion-resistant coating.

Description

Technical Field

[0001] The utility model relates to the technical field of lens back focus gaskets, in particular to a corrosion-resistant lens back focus gasket. Background Art

[0002] The lens back focus spacer is a structure used to improve the tightness of the connection to the camera lens. The spacer is often made of metal and has a circular structure. It is an indispensable part of the lens installation process.

[0003] Existing related technologies often have the following defects: during the use of the lens back focus gasket, the camera may be used in different environments, such as humid seaside, factories with corrosive gases, high temperature and high humidity tropical rainforests, etc. These usage environments are prone to cause corrosion of the back focus gasket during use, thereby shortening the service life of the equipment.

[0004] Therefore, the utility model provides a corrosion-resistant lens back focus gasket. Utility Model Content

[0005] The utility model aims to solve the shortcoming in the prior art that the back focus gasket is easily corroded due to a bad use environment, and proposes a corrosion-resistant back focus gasket for a lens.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a corrosion-resistant lens back focus gasket, comprising a gasket body, the surface of which is coated with a corrosion-resistant coating, and the corrosion-resistant coating is an epoxy resin coating.

[0007] The effects achieved by the above components are: the corrosion-resistant coating made of epoxy resin coating has excellent chemical corrosion resistance, wear resistance and adhesion, can form a tough and dense coating, and provide good protection for the lens back focus gasket.

[0008] Preferably, an outer silicone ring is sleeved on the outer side of the gasket body.

[0009] The effect achieved by the above components is: installing the outer silicone ring on the outside of the gasket body can improve the tightness of the installation of the gasket body and further improve the corrosion resistance of the gasket body during use.

[0010] Preferably, an inner silicone ring is sleeved on the inner side of the gasket body.

[0011] The effects achieved by the above components are: by providing the inner silicone ring, the tightness of the installation of the gasket body is further improved, and the corrosion resistance of the gasket body during use is comprehensively improved.

[0012] Preferably, a first cavity is provided on the inner side of the inner silicone ring, and a second cavity is provided on the inner side of the outer silicone ring.

[0013] The effect achieved by the above components is that the provision of the first cavity and the second cavity effectively improves the compression effect of the inner silicone ring and the outer silicone ring during use.

[0014] Preferably, a plurality of first protrusions are glued to the inner side of the inner silicone ring, and a plurality of second protrusions are glued to the inner side of the outer silicone ring.

[0015] The effect achieved by the above components is: the setting of the first protrusion and the second protrusion on the inner silicone ring and the outer silicone ring increases the resistance during twisting inside and outside the gasket body, thereby avoiding the phenomenon of damage to the corrosion-resistant coating caused by large torsional friction between the gasket body and the inner silicone ring and the outer silicone ring.

[0016] Preferably, a plurality of first reserved grooves and second reserved grooves are respectively provided on the inner side and the outer side of the gasket body, the size of the first protrusion is adapted to the size of the first reserved groove, and the size of the second protrusion is adapted to the size of the second reserved groove.

[0017] The effects achieved by the above components are: the first protrusion is clamped on the inner side of the first reserved groove, and the second clamping block is clamped on the inner side of the second reserved groove, which further improves the stability of the installation between the gasket body and the inner silicone ring and the outer silicone ring.

[0018] In summary:

[0019] In the utility model, the corrosion-resistant coating made of epoxy resin coating has excellent chemical corrosion resistance, wear resistance and adhesion, can form a tough and dense coating, and provide good protection for the back focus gasket of the lens. The outer silicone ring is installed on the outside of the gasket body, which can improve the tightness of the installation of the gasket body, further improve the corrosion resistance of the gasket body during use, and effectively avoid the phenomenon of serious wear of the corrosion-resistant coating on the surface of the gasket body during lens installation. By setting the inner silicone ring, the tightness of the installation of the gasket body is further improved, and the corrosion resistance of the gasket body during use is comprehensively improved. By setting the above structure, the corrosion-resistant coating can provide good protection for the back focus gasket of the lens. The inner silicone ring and the outer silicone ring are set not only to improve the corrosion resistance of the gasket body during use, but also to effectively protect the corrosion-resistant coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 For this utility model Figure 1sectional view of

[0022] Figure 3 For this utility model Figure 2 sectional view of

[0023] Figure 4 This is a schematic structural diagram of the inner and outer silicone rings in the present invention;

[0024] Figure 5 For this utility model Figure 2 A magnified view of point A;

[0025] Figure 6 For this utility model Figure 2 Enlarged view of point B.

[0026] Legend: 1. Gasket body; 2. Corrosion-resistant coating; 3. Inner silicone ring; 4. Outer silicone ring; 5. First bump; 6. Second bump; 7. First cavity; 8. Second cavity; 9. First reserved groove; 10. Second reserved groove. DETAILED DESCRIPTION

[0027] Reference Figure 1-6 As shown, the utility model provides a technical solution: a corrosion-resistant lens back focus gasket, including a gasket body 1.

[0028] The following is a detailed description of its overall specific settings and functions.

[0029] In this embodiment, the surface of the gasket body 1 is coated with a corrosion-resistant coating 2, which is an epoxy resin coating. The epoxy resin coating has excellent chemical resistance, wear resistance, and adhesion, forming a tough, dense coating that provides excellent protection for the lens back focus gasket.

[0030] Specifically, the outer side of the gasket body 1 is covered with an outer silicone ring 4. Installing the outer silicone ring 4 on the outer side of the gasket body 1 can improve the tightness of the gasket body 1 and further improve the corrosion resistance of the gasket body 1 during use.

[0031] The inner side of the gasket body 1 is covered with an inner silicone ring 3. By providing the inner silicone ring 3, the tightness of the installation of the gasket body 1 is further improved, and the corrosion resistance of the gasket body 1 during use is comprehensively improved. A first cavity 7 is provided on the inner side of the inner silicone ring 3, and a second cavity 8 is provided on the inner side of the outer silicone ring 4. The provision of the first cavity 7 and the second cavity 8 effectively improves the compression effect of the inner silicone ring 3 and the outer silicone ring 4 during use. Several first protrusions 5 are glued to the inner side of the inner silicone ring 3, and several second protrusions 6 are glued to the inner side of the outer silicone ring 4. The provision of the first protrusions 5 and the second protrusions 6 on the inner silicone ring 3 and the outer silicone ring 4 increases the resistance when twisting on the inner and outer sides of the gasket body 1, avoiding the phenomenon that large torsional friction between the gasket body 1 and the inner silicone ring 3 and the outer silicone ring 4 causes damage to the corrosion-resistant coating 2. The inner and outer sides of the gasket body 1 are respectively provided with a plurality of first reserved grooves 9 and second reserved grooves 10. The size of the first protrusion 5 matches the size of the first reserved grooves 9, and the size of the second protrusion 6 matches the size of the second reserved grooves 10. The first protrusion 5 is locked inside the first reserved grooves 9, and the second locking block is locked inside the second reserved grooves 10, further improving the stability of the installation between the gasket body 1 and the inner and outer silicone rings 3 and 4.

[0032] Working principle: the corrosion-resistant coating 2 made of epoxy resin coating has excellent chemical corrosion resistance, wear resistance and adhesion, and can form a tough and dense coating to provide good protection for the lens back focus gasket. The outer silicone ring 4 is installed on the outside of the gasket body 1 to improve the tightness of the installation of the gasket body 1, further improve the corrosion resistance of the gasket body 1 during use, and effectively avoid the phenomenon that the corrosion-resistant coating 2 on the surface of the gasket body 1 is seriously worn during the lens installation process. By setting the inner silicone ring 3, the tightness of the installation of the gasket body 1 is further improved, and the corrosion resistance of the gasket body 1 during use is comprehensively improved. The setting of the first cavity 7 and the second cavity 8 effectively improves the compression effect of the inner silicone ring 3 and the outer silicone ring 4 during use, further The tightness of the installation of the gasket body 1 is improved, and the setting of the first protrusion 5 and the second protrusion 6 on the inner silicone ring 3 and the outer silicone ring 4 increases the resistance when twisting on the inner and outer sides of the gasket body 1, avoiding the large torsional friction between the gasket body 1 and the inner silicone ring 3 and the outer silicone ring 4, which causes damage to the corrosion-resistant coating 2. The first protrusion 5 is stuck on the inner side of the first reserved groove 9, and the second block is stuck on the inner side of the second reserved groove 10, which further improves the stability of the installation between the gasket body 1 and the inner silicone ring 3 and the outer silicone ring 4. By setting the above structure, the corrosion-resistant coating 2 can provide good protection for the lens back focus gasket. The setting of the inner silicone ring 3 and the outer silicone ring 4 not only improves the corrosion resistance of the gasket body 1 during use, but also effectively protects the corrosion-resistant coating 2.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A corrosion-resistant lens back focus gasket, comprising a gasket body (1), characterized in that: The surface of the gasket body (1) is coated with a corrosion-resistant coating (2), which is an epoxy resin coating. The outer side of the gasket body (1) is covered with an outer silicone ring (4), and the inner side of the gasket body (1) is covered with an inner silicone ring (3).

2. The corrosion-resistant lens back focus spacer according to claim 1, characterized in that: A first cavity (7) is provided on the inner side of the inner silicone ring (3), and a second cavity (8) is provided on the inner side of the outer silicone ring (4).

3. The corrosion-resistant lens back focus spacer according to claim 1, characterized in that: A plurality of first convex blocks (5) are glued to the inner side of the inner silicone ring (3), and a plurality of second convex blocks (6) are glued to the inner side of the outer silicone ring (4).

4. The corrosion-resistant lens back focus spacer according to claim 3, characterized in that: A plurality of first reserved grooves (9) and second reserved grooves (10) are respectively provided on the inner side and the outer side of the gasket body (1); the size of the first protrusion (5) matches the size of the first reserved groove (9); and the size of the second protrusion (6) matches the size of the second reserved groove (10).

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