Multifunctional welding mask

Abstract

The invention discloses a multifunctional welding mask, which comprises a mask main body, a head strap and a face protection plate, wherein a sliding gear rack for regulating the size of the head strap is arranged on the head strap; the face protection plate is rotatably connected to the mask main body; a viewing window which is movably connected to the face protection plate is formed in the face protection plate; a transparent plate, a variable light screen provided with a variable color light filter, and a protective film are sequentially arranged on the viewing window from inside to outside; the transparent plate is movably connected to the variable light screen; the variable light screen is used for filtering light by virtue of the variable color light filter; the transparent plate is used for protecting eyes when the variable light screen is opened; and the protective film is used for protecting the variable light screen. The welding mask disclosed by the invention is directly covered on the head; it is unnecessary for an operator to take down the welding mask to confirm a welded part, so as to thoroughly free two hands; and the welding mask is also capable of effectively protecting neck and ears, so as to avoid harm due to electromagnetic radiation and thermal radiation.

Description

technical field [0001] The invention relates to welding auxiliary equipment, in particular to a multifunctional electric welding mask. Background technique [0002] Generally, in order to protect the eyes from harmful ultraviolet rays, strong visible light and infrared rays generated during arc welding or gas welding and cutting the base material, and also to protect the eyes from welding arcs and burns caused by heat or damage to heated materials, etc. Use a welding mask to protect the worker's face from the risk of fire from debris. [0003] Early welding masks used a glass filter with a fixed color number as the observation window during welding. When there was no welding arc, remove the entire mask or observation window, reset the mask or observation window after preparation, and then start welding. The main body of the mask is made of opaque material, and the welding work can only be confirmed through the visor. The visor is colored in a dark color to block various har...

AI Technical Summary

Problems solved by technology

[0005] 1) Before arcing, the operator cannot observe the welding position through the mirror group, resulting in inaccurate arcing point

[0006] 2) The black glass lens used in ordinary masks uses absorption to complete the filtering of infrared / ultraviolet, which will inevitably form secondary radiation, etc., which will cause visual fatigue caused by damage to the optic nerve, which greatly affects the Observational control of the weld pool and formation of a good weld

[0007] 3) The darkness of the traditional protective mask is only limited, which cannot provide the operator with the best observation darkness, which also affects the operator's observation of the welding pool, thus affecting the level of welding practitioners in many ways.

[0008] At present, there is another welding mask that uses LCD or LCD and filter combination as welding observation window. When there is no arc light, it has a low color number, and the user can observe through the observation window. When welding, the welding mask can accept The arc light signal or electromagnetic signal drives the LCD to dim and become a high color number. At this time, the operation of the welding can be observed through the observation window, and the effect is better; but due to the constraints of the cost, characteristics and weight of the LCD, the observation window Most of them are small, which brings a lot of inconvenience to users

[0009] In addition, the biggest problem that welders usually encounter during welding in winter is that there is a large difference between the outdoor air temperature and the temperature of the exhaled gas from the human body. Affect the observation of the field of view, and affect the welding speed and welding quality as much as possible

The current welding masks do not have anti-fog function. In addition, one hand is required to hold it when working, which is inconvenient to work.

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