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Multiple sealing structure of vehicle-mounted lens

A technology of multiple seals and lenses, applied in installation, optics, instruments, etc., can solve the problems of the failure of the sealing ring, affecting the performance of the lens, and affecting the compression of the sealing ring, so as to achieve long-term effective sealing, avoid insufficient strength, and reduce the impact. Effect

Pending Publication Date: 2019-02-22
SIRTEC INT SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Make the front lens lens loose and shift, affect the compression amount of the sealing ring, make the function of the sealing ring invalid, and affect the performance of the lens

Method used

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  • Multiple sealing structure of vehicle-mounted lens
  • Multiple sealing structure of vehicle-mounted lens
  • Multiple sealing structure of vehicle-mounted lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A vehicle-mounted lens multiple sealing structure, see Figure 1-Figure 3 : it comprises lens barrel 1, front lens sheet 2, rear lens sheet 3, sealing ring 4, the front end positioning surface 31 of rear lens sheet 3 sticks the radial inner ring arrangement of the rear end annulus 21 of front lens sheet 2, rear The radially outer ring side of the end ring surface 21 is arranged in the area of ​​the outer ring circumference 32 of the rear lens sheet 3, and the outer ring sealing part 22 of the front lens sheet 2 is convex at the outer ring circumference of the rear lens sheet 3 at the corresponding position. 32. The outer ring sealing part 22 of the front lens sheet 2 includes a concave arc groove 221 at the front end, a convex stop ring 222 at the middle part, and a concave sealing ring groove 223 at the rear. The inner wall of the lens barrel 1 corresponds to the concave arc groove at the front end 221 is provided with a side convex arc-shaped locking hook 11, the inne...

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PUM

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Abstract

The invention provides a multiple sealing structure of a vehicle-mounted lens. Sealing of the whole lens is effective for a long time, and the lens can be used effectively and reliably for long time.The structure comprises a lens barrel, a front lens, a back lens and a sealing ring, the front positioning side of the back lens is arranged fit to the radial inner ring in the back annular surface ofthe front lens, the radial outer ring side of the back annular surface is laterally protruded out of the surface domain of an outer annular periphery of the back lens, and the outer ring sealing partof the front lens is laterally protruded out of outer annular periphery of the back lens in the corresponding position. The multiple sealing structure is characterized in that the outer ring sealingpart of the front lens comprises a front recessed arc chute, a middle lateral protruded block ring and a back recessed sealing ring groove, and the inner wall of the lens barrel is provided with a lateral protruded arc locking hook corresponding to the position of the front recessed arc chute, a recessed block groove corresponding to the middle lateral protruded block ring, and a sealing ring outer wall block edge in the position corresponding to the back recessed sealing ring groove.

Description

technical field [0001] The invention relates to the technical field of lens positioning, in particular to a vehicle-mounted lens multiple sealing structure. Background technique [0002] The existing waterproof structure of the vehicle-mounted lens is that a sealing ring is placed between the front lens sheet and the lens barrel, and the bottom of the front lens sheet is pressed with a sealing ring, and the sealing ring is expanded to achieve the effect of sealing and waterproofing. Because the sealing ring is made of rubber, its characteristic is that it is easy to age. After a long period of compression, the permanent springback of the sealing ring will become worse. In the harsh environment, the sealing ring is easily affected by the external environment, resulting in deformation of the sealing ring and a decrease in hardness, so that the function of the sealing ring becomes invalid, and water vapor will enter the lens, thereby affecting the performance of the vehicle len...

Claims

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Application Information

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IPC IPC(8): G02B7/02G03B30/00
CPCG02B7/021G02B7/025
Inventor 罗艳波胡晓敏刘安民汪磊
Owner SIRTEC INT SUZHOU