CN86206681U - Double light face mask for electric welding - Google Patents

Abstract

The utility model discloses a double-light face mask for electric welding, belonging to an electric welder's labor protecting tool. Depending on the small observing window of sunglasses lens [4] tightly clinging at the lower edge of filter glass lens [3], the welding position of the workpieces can be conveniently observed, and therefore, the welding quality is increased. The utility model has the advantages of saving time, and simple structure, eye fatigue is reduced. The double-light face mask for electric welding is suitable to the hand-holding and the helmet type.

Description

Double light face mask for electric welding

This utility model relates to a kind of improved welding worker labour protection apparatus, the preceding two photoelectricity welding masks observing conveniently but do not need often to remove of particularly a kind of striking.

Existing welding mask is covered with two kinds of helmet-type and hand-helds, and it mainly is made up of face shield and light-filtering glass.That light-filtering glass has is reflective (filter range 2000～4500A) and absorption two kinds, standard size: 50 * 108(mm).Owing to see through the welding position that light-filtering glass can't be observed workpiece, make the electric welder before striking, have to often remove electric welder's helmet, so that not only influenced electric welding quality but also time-consuming, consumption welding rod.

Notification number GG85203524 discloses a kind of " manual electric welder's helmet insulate ", this is a kind of hand-held electric welder's helmet, it has a unlatching that makes light-filtering glass open into the elongated window of 6～13mm, shutoff device, its " switch " is contained on the handle, the electric welder can observe the direction of welding easily from the elongated window of opening, promptly close afterwards, weld.This obviously is one well creates, and its advantage is to have improved welding quality and speed.

The purpose of this utility model is that a kind of improved electric welder's helmet will be provided, and it is applicable to hand-held and helmet-type, though it does not have unlatching, shutoff device, can not do the preceding observation of striking yet need not remove face shield.

Task of the present utility model is finished like this: be close to the position in the lower edge of former electric welder's helmet light-filtering glass and leave a middle elongated window, its lateral length is less than 50mm, and vertically width is adorned a black lens (or plated film lens) less than 6mm in this elongated window.Before the electric welding striking, can see through black lens and clearly observe the workpiece welding position, eye sight line slightly up moves away the little watch window of sunglasses and enters the large observation window of light-filtering glass afterwards.According to " labor protection of welding job " (mechanical engineering manual 43-201), black lens (or plated film lens) is applicable to gas welding, arc welding etc. and eye is stabbed.Simultaneously, during according to electric welding field, workpiece to eye apart from about 800mm, face shield to eye is estimated apart from about 80mm, see through the little observation window of sunglasses and can on welding work pieces, obtain to amplify about 100 times visual field, if the little observation window of sunglasses is of a size of 15 * 5.5(mm), then the visual field area is about 150 * 55(mm) like this.This just shows, see through the little observation window of sunglasses on the one hand and can clearly observe the workpiece welding position, and on the other hand, arc radiation also unlikely face after little observation window black lens weakens suffers damage.

This utility model is than it " hand-control electric-controlled face shield insulate ", and its advantage is: (1) is simple in structure, easy to use, cost is low; (2) highly versatile not only is applicable to hand-held but also be applicable to that helmet-type (3) is not subjected to the stimulation of arc radiation at striking moment eyes.

Below in conjunction with accompanying drawing utility model is described in further detail.

Figure one is the partial elevation view of utility model.

Constitute by face shield (1), eyeglass square frame (2), light-filtering glass (3) and black lens (4) with reference to figure a pair of photoelectricity welding mask.Black lens (4) is close to the lower edge of light-filtering glass (3), forms a lateral length less than 50mm, and vertically width is less than the little observation window of 6mm.The electric welder is in when operation, and the black lens (4) that sees through little observation window is observed the workpiece welding position, and the striking retracement line is promptly slightly up left the large observation window that little observation window enters light-filtering glass (3) and got final product work.

Claims (3)

1, one mainly by face shield [1], eyeglass square frame [2], and the electric welder's helmet that light-filtering glass [3] is formed, it is characterized in that being close to place, light-filtering glass [3] lower edge has a black lens [4] (or plated film lens).

2,, it is characterized in that black lens (4) (or plated film lens) and light-filtering glass (3) all are contained in the eyeglass square frame (2) by the electric welder's helmet of claim 1 regulation.

3, by the electric welder's helmet of claim 1 or 2 regulations, it is characterized in that black lens (4) (or plated film lens) forms a little watch window in eyeglass square frame (2), its lateral length is below 50mm, and vertically width is below 6mm.

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