CN1101174C - Head-wear and hand-held mask - Google Patents

Abstract

The present invention relates to a face shield for electric welders. A supporting seat is arranged on the upper part of a casing of the face shield, and a moving head frame is arranged on the supporting seat. A moving mirror window is arranged on a viewing window on the middle part of the casing, and a moving handle is arranged on the lower part of the casing. The upper part of a linking device is connected with the moving mirror window, the middle part of the linking device is connected with a throat support, and the lower part of the linking device extends near the handle. During use, the head frame can be spread to be arranged on the top of a head by a welding operator, and an underjaw is supported by the throat support. When the face shield is worn on the head of the operator working, the head frame and the throat support can be folded. When the face shield is held by the hand of the operator working, the moving mirror window can be opened by the underjaw or the fingers of the welding operator so that working conditions can be conveniently observed. Operation is convenient and flexible, and the defects of tightening the head of a person, reserving hoop traces, tangling hair, interfering blood circulation and influencing the health and the beautiful appearance of the welding operator. Therefore, the present invention can improve operator labor conditions and enhancing operating efficiency and welding quality.

Description

Head-wear and hand-held mask

The present invention relates to the protective mast that a kind of electric welder uses.

For a long time, the face shield used of electric welder is divided into wear-type face shield and hand-held face shield.The top is provided with head hoop in the case of wear-type face shield, and rigidity medicated cap shell also can be installed on the head hoop, and from top protection welder head, the anterior observation panel of case is provided with the flexible mirror window, and the flexible mirror window is connected with the jaw holder of bottom in the case by linkage.During use, the welder wales head circumference with head hoop, makes jaw holder closing or opening by linkage control flexible mirror window by opening mouth or shutting up.Though the wear-type face shield does not need the face of human hand shield cover human, make the welder when welding, can vacate a hands and do back work, save the personnel that do back work.But because of its head hoop is to form with the soft band and the adjusting locking device of red guiding principle paper or plastic tape and so on, during use, the case that blocks arclight is to be suspended on the facial the place ahead of welder by the tight firmly head hoop of welder's head circumference.Because the gravity of case is partial to the first half of head hoop, so wear steady face shield, the head hoop that just must make top in the case is along forehead, temporal bone and back side of head lock ring are lived people's head circumference, and the time has been grown like this, stay the head hoop trace can for people's head circumference, the overslaugh blood circulation, make forehead be easy to generate wrinkle, also be easy to disarray people's hair, influence workers'health and attractive in appearance.The use of this drawbacks limit wear-type face shield makes its use amount and sales volume well below the hand-held face shield.The hand-held face shield then is provided with handle below case, when the welder welds, needing to hold handle with one makes face shield cover the face of oneself, another is held the electrode holders welding, therefore, though the hand-held face shield has the advantage that can not stay the hoop trace in welder's head circumference, also exist the welder to weld space-time and do not sell and do the shortcoming of back work.Also there are following shortcoming in above-mentioned unifunctional wear-type face shield and hand-held face shield.The first, wear for a long time or hand shield makes the people feel tired easily, thereby improved labor intensity, reduced work efficiency; The second, single occupation mode can not adapt to the weld job of frequent variation well; The 3rd, if dispose two kinds of face shields simultaneously then neither be easy to carry, increased tool expense again.China utility model patent CN2155836 discloses a kind of " with the electric welder's helmet of lower jaw control goggles switch ", be primarily characterized in that, the top is provided with and wears parts in the case, the outer below of case is provided with handle, there is a cover to transmit mechanism's (jaw holder and linkage) that lower jaw moves in the case, the Eye protector for welder (flexible mirror window) that can be overturn by the said mechanism driving.The major defect of this electric welder's helmet is, transmit the mechanism of lower jaw action, comprise that the part of regulating lower jaw pressing plate (jaw holder) and wearing distance between the parts all is arranged in the case, (case is towards this one side of welder's head, be called in the case, it is outer that another side then is called case), can not move up and down and be fastened on the case and wear parts, to regulate the lower jaw pressing plate and to wear distance between the parts.The welder is after putting on face shield like this, hands can't enter and regulate the mechanism that transmits the lower jaw action in the case, make the lower jaw pressing plate when mouth and flexible mirror window are in closed condition, hold the lower jaw of oneself just, the lower jaw pressing plate is transferred to suitable position and take off the length that face shield is difficult to the own head of contrast.And the mechanism that drives the Eye protector for welder folding all is arranged in the case, when the welder works at hand shield, also can't use the Push And Release of hand control flexible mirror window, must remove case with a hands, the another hands is found pad accurately, and the reuse hands covers face with face shield, and the starting the arc of another hands is freezed.Remove mobile face shield and brandish an arm, often have influence on rocking of health and another hands, cause the displacement of another hands and welding rod, influence welding quality.This has just brought inconvenience to the welder.On the other hand, the flexible connection position of wearing parts and case of this face shield is located at the case rear portion, (side that case has observation panel is called the case front portion, and the peripheral edge portion of close welder ear both sides is called the case rear portion).Like this, rotate in any case and wear parts, wear parts and all keep off at the case rear portion, make the welder when hand shield is worked, face can not enter in the case and be protected.And what wear that face shield wears that parts adopt because of this is prior art, live head circumference by the hoop of wearing that soft material is made, case is fixed on the facial the place ahead of welder, wear face shield like this and again can excuse wear parts and wale head circumference and stay the hoop trace in head circumference, disarray hair, influence attractive in appearance.

The objective of the invention is to overcome above-mentioned shortcoming, provide a kind of easy to use, can improve workman's labor condition, increase work efficiency and the head-wear and hand-held mask of welding quality.

Head-wear and hand-held mask of the present invention, comprise case, wear parts and handle, the anterior observation panel of case is provided with the flexible mirror window, the flexible mirror window is connected with the jaw holder by linkage, near the part of regulating the jaw holder in the described linkage and wearing distance between the parts reaches handle from case breach or outer rim.

Another improvements of head-wear and hand-held mask of the present invention are that the described parts of wearing adopt the headstock, and the described headstock only need withstand on people's crown part and jaw holder and hold lower jaw, relatively case is fixed on facial the place ahead of people.

The another improvements of head-wear and hand-held mask of the present invention are that the case front portion is provided with headstock bearing, and the headstock is anterior and headstock bearing flexible connection at case.

Another alternative technology scheme of head-wear and hand-held mask of the present invention is to comprise case, wear parts and handle, the anterior observation panel of case is provided with the flexible mirror window, the flexible mirror window is connected with the jaw holder by linkage, near described linkage reaches handle from case breach or outer rim, wear parts and can move up and down with screw with respect to case and be fastened on the case, the swing handle of described holding screw is located at the case outside.

The invention has the advantages that, will regulate the jaw holder in flexible mirror window and the linkage that the jaw holder is connected and wear the part of distance between the parts, reach handle from case breach or outer rim near.The welder can by reaching the linkage of case outside, be transferred to the jaw holder position of suitable own head length soon according to the length of own head after putting on face shield like this.When making flexible mirror window and mouth be in closure state, the lower jaw of oneself is held in the jaw holder just, thereby makes the Push And Release of lower jaw action control flexible mirror window.Wear parts and can move up and down with screw and be fastened on the case, the swing handle of holding screw is located at the case outside.Like this, the swing handle of welder also rotatable case outside when putting on face shield moves up and down and wears parts, regulates the distance of wearing between parts and the jaw holder, makes it to be transferred to very soon the position of suitable own head length.The time that this had just saved and taken off repeatedly, put on face shield debugging jaw holder and has worn distance between the parts, easy to operate.When welder's hand shield is worked, in the time of then available hand face shield handle, with near the linkage the finger push handle, Push And Release with regard to may command flexible mirror window, the welder is when seeking pad like this, hand-holdable handle covers face with face shield, with near the linkage the finger push handle, the flexible mirror window is opened, after right hand welding rod is aimed at pad, left hand unclamps finger, the flexible mirror window is closed, and right hand welding rod can freeze in the starting the arc, and just must not brandish arm removes mobile face shield for this, cause the displacement of rocking of health and right hand welding rod when having avoided brandishing left arm, so can improve welding quality.Therefore head-wear and hand-held mask of the present invention no matter hand-held or when wearing face shield, uses all easily, can improve workman's labor condition, increases work efficiency and welding quality.Wear parts and adopt the headstock, the headstock withstands on the welder crown when wearing face shield, and welder's lower jaw is held in the jaw holder, with the case relative fixed in the facial the place ahead of welder.The headstock on the welder crown, can not disarrayed welder's hair from top frame like this, more can not stay the hoop trace at welder's forehead and head circumference, influences attractive in appearance.And the case front portion is provided with headstock bearing; the headstock is anterior and headstock bearing flexible connection at case; then when welder's hand shield is worked; can the headstock is folding; the headstock can not keep off the rear portion at case; overslaugh welder face enters in the case, so welder's hand shield when work, face also can enter in the case and be protected.

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 head-wear and hand-held mask of the present invention;

Fig. 2 is the right side view of head-wear and hand-held mask shown in Figure 1;

Fig. 3 is the headstock structural representation of head-wear and hand-held mask shown in Figure 1;

Fig. 4 is a headstock bearing front view shown in Figure 3;

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

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

Fig. 7 is the flexible handle structural representation of head-wear and hand-held mask shown in Figure 1;

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

Fig. 9 is the sketch map of the another kind of embodiment of flexible handle;

Figure 10 is the vertical view of Fig. 9;

Figure 11 is the another kind of embodiment of the linkage of head-wear and hand-held mask of the present invention;

Figure 12 be head-wear and hand-held mask of the present invention wear the user mode sketch map.

Referring to Fig. 1 Fig. 2, head-wear and hand-held mask of the present invention comprises case 1, and case 1 front portion is provided with observation panel 2.Case 1 top is provided with headstock bearing 4, and headstock bearing 4 is provided with locating slot 3 and following locating slot 6, and the headstock 5 links together rotatably with headstock bearing 4.When the headstock 5 upwards strutted, the elastic force that closes up of the headstock 5 was stuck in the locating slot 3 its left end, prevented that the headstock 5 is sagging automatically folding because of self gravitation, and when the headstock 5 was folding downwards, the left end of the headstock snapped in down in the locating slot 6, struts automatically to prevent the headstock 5.Preferably offer rectangular through hole 7 on the headstock bearing 4, bolt 8 passes rectangular through hole 7 headstock bearing 4 is fastened on the case 1, the swing handle of bolt 8 preferably is located at the outside of case 1, like this, the welder can rotate the swing handle of case 1 outer bolt 8 by hand when putting on face shield, headstock bearing 4 is moved up and down along rectangular through hole 7, to regulate the distance between the headstock 5 and the observation panel 2, make eyes align observation panel 2, (regulating in the ordinary course of things, because observation panel 2 highly has 45 millimeter up and down) then tights a bolt and 8 gets final product.Observation panel 2 is provided with flexible mirror window 10, and back-moving spring 9 makes flexible mirror window 10 be in closed condition.Connecting rod 11 upper ends are connected with flexible mirror window 10, the through hole 20 on the bracket 13 of jaw holder is passed at the middle part, making the jaw holder can be that track moves up and down with connecting rod 11, the bottom is passed case breach 17 and is bent to annulus near extending to handle 19, swing handle 18 links together rotatably with annulus, screw rod 12 lower ends are connected with swing handle 18, top is threaded with bracket 13, after the welder puts on face shield like this, as long as the swing handle 18 of rotation case outside, bracket 13 will move up and down along the axis of screw rod 12 and connecting rod 11, with the distance between the bracket 16 and the headstock 5, makes it to adapt to the different shape of face of all lengths.The swing handle of the also rotatable case of welder outside bolt 8 moves up and down the headstock 5, regulates the distance between the headstock 5 and the jaw holder, makes it to adapt to the different shape of face of all lengths.Carriage 16 is connected with bracket 13 by rotating shaft 14, and spring 15 increases the Mo Chali between carriages 16 and the bracket 13, prevents that carriage 16 from strutting automatically or folds.

The bottom of case 1 is provided with handle bearing 22, and rotating shaft 23 links together handle 19 and handle bearing 22, and handle bearing 22 is provided with fixing pin 24 and locating hole 25.Spring steel ball 26 on the handle 19 cooperates with locating hole 25, prevents that handle 19 from rocking.Fixing pin 24 restriction handles 19 slewing areas.When enforcement is of the present invention, prevent that the positioner of the headstock, jaw holder, handle automatic shift from can exchange, wherein locating slot also can be that the location is protruding, can prop up not automatic shift of the headstock 5 equally, spring 15 also can be a rubber blanket.The bracket 13 of jaw holder also can be connected without rotating shaft 14 with carriage 16, and makes overall structure.Handle 19 also can be fixed on the harder rigid material that the headstock 5 of (seeing Figure 11) on the case 1 can be used steel wire, plastics or bamboo wood and so on, preferably is provided with soft bedding and padding on it, as gum sleeve or plastic mattress.

Referring to Fig. 3, Fig. 3 is the structural representation of the headstock 5.The headstock 5 shown in Figure 3 is the annular frames that curve with steel wire, and annulus partly withstands on the top of the number of people during use, and its afterbody has bent opposed right angle hook, so that insert in the through hole 21 of headstock bearing 4, the headstock 5 can be rotated up and down.The annular frame part of the headstock 5 also can be made hemispherical shell, establishes foam rubber cushion in the housing, and housing withstands on the top of the number of people during use, and is when needing hand shield work, then that the headstock is upwards folding.Welder face just can enter in the face shield and be protected like this.

Referring to Fig. 4-Fig. 6, Fig. 4-Fig. 6 is respectively the front view of headstock bearing 4, left side view and vertical view.Headstock bearing 4 offers rectangular through hole 7, by bolt 8 (see figure 1)s of passing rectangular through hole 7 it can be fixed on the case 1 up or down.The right angle hook of the headstock 5 afterbodys inserts in the through hole 21, and the headstock 5 is that rotating shaft is rotated up and down with the right angle hook like this, utilizes the last locating slot 3 that closes up elastic force and headstock bearing 4 of the headstock 5 self simultaneously, and following locating slot 6 prevents its automatic shift.If adopt the flexible connection of latch form, then locating slot can be made locating hole, the headstock 5 is not established right angle hook and just can be inserted in the locating hole.

Referring to Fig. 7 Fig. 8.Fig. 7 and Fig. 8 represent the front view and the vertical view of flexible handle respectively, and handle 19 is installed on the handle bearing 22, and handle 19 can rotate before and after the direction of arrow.

Referring to Fig. 9 Figure 10, Fig. 9 Figure 10 is the sketch map of the another kind of embodiment of flexible handle, and they represent the front view and the vertical view of flexible handle respectively.Handle 19 is placed in the handle bearing 22, and can move up and down along the direction of arrow.Like this, when the welder under the narrow situation of yard, in the time of need wearing face shield and bow welding, can prop up the chest to prevent handle 19 with handle 19 to front opening or upwards push away.

Referring to Figure 11, Figure 11 is the another kind of embodiment of the linkage of head-wear and hand-held mask of the present invention, connecting rod 11 upper ends are connected with flexible mirror window 10, the through hole 20 of bracket 13 and the breach 17 of case 1 below are passed in the bottom, carriage 16 is installed on the bracket 13, the screw rod 12 of case 1 outer below is connected bracket 13 with connecting rod 11, during use, as long as unscrew the swing handle 18 above the case, screw rod 12 and connecting rod 11 are disengaged, promote swing handle 18 more up or down, make carriage 16 hold welder's lower jaw, tighten screw rod 12 then and get final product.

Referring to Figure 12.The operator upwards opens the headstock 5, and the headstock 5 is withstood on the head, loosers a bolt 8, adjusts the upper-lower position of the headstock 5, makes flexible mirror window 10 align the eyes of oneself, tights a bolt 8.Open carriage 16 then downwards and hold the lower jaw of oneself, when the swing handle 18 of rotation case outside makes flexible mirror window 10 be in the state of closing observation panel 2, carriage 16 is held the lower jaw of oneself just, the operator opens mouth during work, lower jaw promotes carriage 16 downwards, by screw rod 12, swing handle 18 connecting rods 11 are opened flexible mirror window 10, and the operator can be from the scenery outside observation panel 2 is clear that case 1.Back work finishes, and welding rod is aimed at soldering opening, and button one's lip for the operator, and back-moving spring 9 makes flexible mirror window 10 close observation panel 2, moves on connecting rod 11 swing handles 18 and the screw rod 12 simultaneously, makes and moves the lower jaw of still holding the operator on the carriage 16, and at this moment, the operator can weld.The operator also can be folding downwards with the headstock 5, carriage 16 is upwards folding, hand-held handle 19 covers face shield in the face of oneself, reuse is pointed near the swing handle 18 the downward driving handle, and flexible mirror window 10 is opened, and observes the welding position from observation panel 2, make welding rod aim at welding position, unclamp finger then, back-moving spring 9 is closed movable Zhuang brocade window 10, can play arc welding.The operator can be used alternatingly face shield with head, hands according to working condition, has so not only brought very big convenience to work, but also has reduced labor intensity, has improved work efficiency.

Claims (10)

1, a kind of head-wear and hand-held mask, the flexible mirror window that comprise case, wear parts, handle and the anterior observation panel of case is provided with, described flexible mirror window is connected with the jaw holder by linkage, it is characterized in that in the linkage that the part of regulating the jaw holder and wearing distance between the parts reaches handle from case breach or outer rim near.

It is characterized in that by the described head-wear and hand-held mask of claim 1 that 2, wear parts and adopt the headstock, the described headstock can withstand on people's the crown and partly hold the relative facial the place ahead that case is fixed on the people of lower jaw with the jaw holder.

3,, it is characterized in that the headstock adopts rigid material to make frame structure or hemispherical shell body structure by the described wear-type hand-held mask of claim 2.

4, by the described head-wear and hand-held mask of claim 3, it is characterized in that the case front portion is provided with headstock bearing, the headstock is anterior and headstock bearing flexible connection at case.

5, it is characterized in that by claim 1,2,3 or 4 described head-wear and hand-held masks the jaw holder is the split foldable structure.

6, a kind of head-wear and hand-held mask, comprise case, wear parts and handle, the anterior observation panel of described case is provided with the flexible mirror window, described flexible mirror window is connected with the jaw holder by linkage, near it is characterized in that linkage reaches handle from case breach or outer rim, wear parts and can move up and down with screw with respect to case and be fastened on the case, the swing handle of described holding screw is located at the case outside.

7, it is characterized in that by the described head-wear and hand-held mask of claim 6, wear parts and adopt the headstock, the described headstock withstands on people's crown part and jaw holder and holds lower jaw, relatively case is fixed on facial the place ahead of people, the case front portion is provided with headstock bearing, described headstock bearing offers rectangular through hole, and screw passes the strip hole through hole headstock bearing is connected with case, and the headstock is anterior and headstock bearing flexible connection at case.

8,, it is characterized in that the headstock adopts rigid material to make frame structure or hemispherical shell body structure by the described head-wear and hand-held mask of claim 7.

9,, it is characterized in that jaw holder employing split foldable structure by claim 6,7 or 8 described head-wear and hand-held masks.

It is characterized in that by claim 6,7 or 8 described head-wear and hand-held masks that 10, it is to flexibly connect that case is provided with between handle bearing, handle and the handle bearing.

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