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Eyepiece controllable system and welding helmet using same

A welding cap and eyepiece technology, used in ophthalmic surgery, goggles, etc., can solve problems such as eye damage, inconvenient operation, and unsatisfactory welding quality, and achieve the effect of avoiding delayed damage.

Inactive Publication Date: 2019-07-26
SHANGHAI JINSHAN DISTRICT YOUTH ACTIVITY CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is a delay of 0.2 milliseconds in the process from the appearance of welding sparks to the dimming of the liquid crystal light valve. cause serious injury
If the welder uses a flip-type welding helmet, then at the beginning of the welding work, the welder needs to blind weld, which is inconvenient to operate during the welding process, which will easily lead to unsatisfactory welding quality

Method used

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  • Eyepiece controllable system and welding helmet using same
  • Eyepiece controllable system and welding helmet using same

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention.

[0020] The present invention retains the liquid crystal light valve 1 used in the automatic color-changing welding helmet, which is still driven by direct current, and at the same time adds an easy-to-operate control switch, so that the light valve can actively switch in advance and avoid damage caused by delay. The purpose is to eliminate the time delay when the liquid crystal light valve 1 switches to the dark state. With the active control switch, this situation can be completely circumvented. The electrode voltage reversal circuit is realized by D flip-flop, which ...

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Abstract

The invention provides an eyepiece controllable system and a welding helmet using the same. The system comprises a flip circuit, a power source V1 and a control switch electrically connected to each other. Compared with the prior art, the eyepiece controllable protective welding helmet has the following advantage that a liquid crystal light valve used in an automatic color changing welding helmetis retained and still driven by direct current. At the same time, an easy-to-operate switch is used, so that the light valve can be switched in advance actively, and the delay damage is avoided.

Description

technical field [0001] The invention relates to the field of electric welding technology, in particular to an eyepiece controllable system and an electric welding helmet using the eyepiece controllable system. Background technique [0002] At present, welders often experience tears and swollen eyes. Eye damage is also one of the main reasons why welders retire early. [0003] In the prior art, the Chinese utility model patent "A Multifunctional Electric Welding Helmet" (Application No.: 201721612374.4) discloses a multifunctional electric welding helmet, which includes a cap shell, goggles are arranged on the outer surface of the cap shell, and the cap A connection ring is provided below the outer surface of the shell, a filter tank is provided inside the connection ring, a second filter screen is provided at the connection between the filter tank and the connection ring, and a first filter screen is provided at the outer end of the filter tank; The inner wall of the top o...

Claims

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Application Information

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IPC IPC(8): A61F9/06
CPCA61F9/06A61F9/065
Inventor 沈鑫袁颖萱汪颖朱永军
Owner SHANGHAI JINSHAN DISTRICT YOUTH ACTIVITY CENT