CN1164993A

CN1164993A - Headgear type electric welding mask

Info

Publication number: CN1164993A
Application number: CN 96118151
Authority: CN
Inventors: 胡五一
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-09
Filing date: 1996-05-09
Publication date: 1997-11-19

Abstract

A head-carried welding mask is composed of a mask shell with observing window, lower jaw receptacle, connecting-rod by which said lower jaw receptacle is connected to movable glass for opening or closing the observing window, and rigid head supporter on upper mask shell. As the welding mask is fixed to head by rigid head supporter made of hard and rigid material, which is supported by head top without hoop band, so not affecting hair style and blood circulation.

Description

Headgear type electric welding mask

The present invention relates to the face shield that a kind of electric welder uses.

For a long time, the welding mask of people's use is covered with wear-type face shield and hand-held face shield.The wear-type face shield is divided into head hoop formula face shield and helmet-type face mask again.Head hoop formula face shield is provided with the head hoop made from red steel paper band and hasp above in case.Helmet-type face mask then is to have added the helmet on head hoop, and the head hoop band in the helmet is generally made with plastic tape.Though having the operator, the wear-type face shield when welding, can vacate the advantage that a hands is done back work, the personnel of back work are in saving, but because of its in use, the case that blocks arclight is to be suspended on the facial the place ahead of operator by the head hoop that lock ring is lived operator's head circumference.The gravity of case is partial to the first half of head hoop, therefore will wear steady face shield, and the head hoop that just must make top in the case is along forehead, and temporal bone and back side of head lock ring are lived people's head circumference.Time has been grown like this, stays the head hoop trace can for people's head circumference, and the overslaugh blood circulation is unhealthful, also makes forehead produce wrinkle easily.And when masking, from the beginning head hoop goes up the head circumference that is locked downwards.When taking off face shield, again head hoop is upwards proposed from head circumference, so also can disarray hair, influence attractive in appearance.These shortcomings have limited the application of wear-type face shield greatly, make the use amount of wear-type face shield and sales volume well below the hand-held face shield.

The objective of the invention is to overcome above-mentioned shortcoming, a kind of headgear type electric welding mask that can not stay the hoop trace to people's head circumference is provided.

Headgear type electric welding mask of the present invention comprises that the front is provided with the case of observation panel, the interior bottom of described case is provided with the jaw holder, and the top in described case is provided with rigidity crown support.

Headgear type electric welding mask of the present invention is to make as plastics, steel wire or bamboo wood and so on harder rigid material because of the headstock of its crown support, be that the headstock is overhead gone up from upper shelf during use, from the upper support face shield, the bottom is to hold people's lower jaw and make face shield relatively-stationary with the jaw holder, thereby can as using head hoop band and hasp, tightly not wale people's head circumference, disarray people's hair, stay darker hoop trace for people's head circumference, influence blood circulation and health.

Other details of the present invention and characteristics can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings, wherein:

Fig. 1 is the front view of headgear type electric welding mask of the present invention;

Fig. 2 is the right side view of headgear type electric welding mask shown in Figure 1;

Fig. 3 is the headstock structural representation of headgear type electric welding mask shown in Figure 1 crown support

Fig. 4 is the bearing front view of the crown shown in Figure 3 support;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the vertical view of Fig. 4;

Fig. 7 is the front view of the another kind of form of crown support;

Fig. 8 is the vertical view of Fig. 7;

Fig. 9 is the structural representation of the crown another form of support;

Figure 10 is headgear type electric welding mask user mode figure of the present invention.

Referring to Fig. 1 and Fig. 2.Headgear type electric welding mask of the present invention comprises case 1, and case 1 is provided with observation panel 2.Top in the case 1 is provided with crown support 3.Bottom in the case 1 is provided with jaw holder 16, but jaw holder 16 linking together by jaw carriage 13 and screw mandrel 12 relative motioies; Swing handle 18 is equipped with in screw mandrel 12 bottoms, by swing handle 18 rotary screw rods 12 jaw holder 15 is moved up and down, so that regulate the distance between itself and the crown support 3, makes it to be fit to the different shape of face of length.Jaw holder 16 links together by rotating shaft 14 with jaw carriage 13.In the rotating shaft 14 between jaw holder 16 and the jaw carriage 13, spring 15 is housed,, prevents the automatic folding of jaw holder so that increase rotation friction.

Flexible mirror window 10 links together with case 1, and an end is fixed on back-moving spring 9 on the case 1 and makes flexible mirror window 10 be in normally off to cover observation panel 2.Connecting rod 11 upper ends link to each other with flexible mirror window 10, and the hole 20 of jaw carriage 13 is passed at the middle part and axle sleeve 17, lower end on the case 1 bend to annulus and swing handle 18 links together rotatably.On case 1, also can install handle 19 simultaneously.

Referring to Fig. 3.Fig. 3 is the structural representation of the headstock 5 of the crown of the present invention support 3.The headstock 5 shown in Figure 3 is annular frameworks that a usefulness steel wire curves, and annulus partly withstands on the top of the number of people during use, and its afterbody bends the right angle hook of opposed fixedly usefulness, so that be hooked in the through hole 21 on the bearing 4 of crown support 3.

Referring to Fig. 4 one Fig. 6.Fig. 4 one Fig. 6 is respectively front view, left side view and the vertical view of crown support bearing 4.The centre of bearing 4 is provided with rectangular through hole 7, but screw 8 (see figure 1)s by passing rectangular through hole 7 with its up-down adjustment be fixed on the case 1.The right angle hook of the headstock 5 afterbodys is along in the upwards sliding manholes 21 of groove 6 of bearing 4 both sides, utilizes the elastic force of the headstock self and the locating slot 22 on the bearing 4 to prevent that it from opening automatically and falls.

Referring to Fig. 7 and Fig. 8.Fig. 7 and Fig. 8 represent integrally-built crown support front view and the vertical view made with steel wire respectively.Obviously, but available screw penetrate wherein the slotted hole 23 that surrounds with steel wire with its up-down adjustment be fixed on the face shield 1.The headstock of said structure form outside all can put rubber or plastic bushing, is worn over like this on operator's the head to feel comfortably cool.

It is a hemispheric housing that the headstock shown in Figure 9 is worn overhead part, and its inside can add rubber or foam rubber cushion.

Referring to Figure 10.The operator upwards opens the headstock 5, and the headstock 5 is withstood on the head, unscrews screw 8, adjusts the upper-lower position of the headstock 5, makes flexible mirror window 10 align the eyes of oneself, tightens screw 8.Open jaw holder 16 then downwards and hold the lower jaw of oneself, rotation swing handle 18 makes flexible mirror window 10 be in the state of closing observation panel 2.During work, the operator opens mouth, and lower jaw promotes jaw holder 16 downwards, by screw mandrel 12, swing handle 18 and connecting rod 11 flexible mirror window 10 is opened, and the operator can be clear that the scenery of case 1 outside from observation panel.Back work finishes, and button one's lip for the operator, and back-moving spring 9 pulling flexible mirror windows 10 are closed observation panel 2, move on connecting rod 11, swing handle 18 and the screw mandrel 12 simultaneously, make and move the lower jaw of still holding the operator in the jaw holder 16, and this moment, the operator can weld.The operator also can fold the headstock 5 downwards, jaw holder 15 is upwards folding, hand-held handle 19 covers the face of oneself, the reuse finger is pulling swing handle 18 downwards, flexible mirror window 10 is opened, directly observe the welding position, make welding rod aim at welding position, loose one's grip then from observation panel 2, back-moving spring 9 is closed flexible mirror window 10, can weld.The operator can be used alternatingly face shield with head, hands according to working condition, has so not only brought convenience to work, but also has reduced labor intensity, has improved work efficiency.Should also be noted that in use: when the headstock 2 adopts hemispherical dome structure shown in Figure 9 or adds the helmet when protecting the top on the headstock 5, the headstock 5 should upwards fold, in order to avoid cover observation panel 2, influence is observed.

Claims

1, a kind of headgear type electric welding mask comprises that the front is provided with the case of observation panel, the interior bottom of described case is provided with the jaw holder, it is characterized in that the top in described case is provided with rigidity crown support.

2, according to the described headgear type electric welding mask of claim 1, it is characterized in that described rigidity crown support is the annular frame that curves with steel wire, its afterbody bends the right angle hook of opposed fixedly usefulness.

3, according to the described headgear type electric welding mask of claim 1, it is characterized in that it is a hemispheric housing that the described headstock is worn overhead part, its inside is lined with rubber or foam rubber cushion.