Sealing system with adaptive balance of internal and external pressures

Abstract

The invention provides a sealing system with adaptive balance of internal and external pressures. The sealing system is composed of a protective shell for accommodating protected articles and a compression device mutually communicated with the protective shell. When an external pressure changes, a communicating method of the protective shell and the compression device or a structure of the compression device ensures that the internal capacity of the sealing system composed of the protective shell and the compression device under the action of the external pressure changes passively and synchronously, so that the internal pressure and the external pressure are kept consistent all the time. The sealing system is capable of solving the problems of the prior art or existing products and overcoming the defects of the prior art or existing products, completely overturning the recognition on the prior art or existing products, has certain general expansibility, is capable of fully enlarging the use range and user range, brings convenience and happy experience to relevant work and life (leisure / movement experience) and thus has favorable market prospects.

Description

Technical field [0001] The invention relates to the field of machinery, and is specifically used to protect items from changes in the environmental pressure (especially to very high pressures) in a gas or liquid environment, to avoid deformation and damage due to uneven pressure, and to avoid gas or liquid leakage The resulting pollution or damage. For example: underwater photography machines and peripheral equipment, sealing devices required in the underwater environment. Background technique [0002] Taking the underwater sealing device (commonly known as waterproof housing / sleeve) as an example, the existing technology / product adopts the following two methods: [0003] 1. Use a shell and sealing material of sufficient strength (compression-resistant) to isolate the damage to the protected body (such as a camera) caused by the infiltration of environmental liquids, commonly known as "waterproof shell". [0004] 2. Wrap the protected body with abrasion-resistant and water-resistan...

AI Technical Summary

Problems solved by technology

[0006] 1. Hard protective shell: the choice of material must be hard and flexible high-cost materials; the shell must be thick enough to resist huge environmental pressure, so it is bulky, heavy, difficult to carry, and difficult to operate; the production process is complex , and the cost is very high; due to the huge pressure difference between the inside and outside of the shell, the sealing ring and other sealing positions have a high probability of leakage; the equipment used for underwater photography (camera, video camera, lighting, etc.), in order to resist environmental pressure, the sealed shell The body is very thick, so the optical transmittance is greatly reduced, the image quality is not good, and the photosensitive performance of the photographic equipment is extremely high.

[0007] 2. Various types of waterproof sealing devices (such as waterproof bags) in the form of wrapping bags: because the environmental pressure directly acts on the protected body through the waterproof bag, thereby generating huge pressure on the protected body and destroying the protected body; it is prone to damage ;The sealing port is prone to leakage

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