CN210301403U - Welding mask - Google Patents

Abstract

The utility model discloses a welding mask, welding mask includes the face guard casing and locates bandeau in the face guard casing, the bandeau include with the head circumference contact of person of wearing the head circumference the contact and with the top band of head circumference connection and with the person of wearing's top of the head contact, the bandeau still includes the connecting piece, tightens up or relaxes according to person of wearing's different head circumferences during the bandeau, the connecting piece is adjusted the girth of head circumference makes welding mask back-and-forth movement position realizes the adjustment of its focus position. The utility model provides a welding face guard is equipped with the connecting piece on the bandeau, adjusts the girth of head shroud through the connecting piece, makes welding face guard back-and-forth movement position realizes the adjustment of its focus position, even there is the individual difference in person's head, welding face guard's position neither can excessively lean on in the front in order to avoid bringing great oppression for the person of wearing, also can excessively lean on the back in order to avoid letting the person of wearing to feel uncomfortable, improves the comfort level of wearing.

Description

Welding mask

Technical Field

The utility model relates to an electric welding protection technical field, concretely relates to focus position and the position relatively fixed's of wearing person's ear welding face guard.

Background

A welding helmet is a protective device used to help welders protect against occupational hazards from welding. A typical welding helmet includes a helmet shell, a headband disposed on the helmet shell and adapted to be worn by a weldor, the headband being in direct contact with the head of the wearer and being positioned between the head of the wearer and the helmet shell when the helmet is in place during welding so that the helmet shell is stable relative to the head of the wearer.

Currently, a headband basically includes a forehead band, an occipital neck pad, a left band, and a right band, the forehead band and the occipital neck pad enclosing a head circumference restraining portion for providing a restraining force to the headband around a forehead and a nape of a wearer; the left and right straps enclose a crown restraint portion for providing a restraining force with which the headband is attached to the crown of the wearer's head; the head circumference restraining portion is often directly connected to the left and right straps on the ear side of the wearer to form a headband.

In order to facilitate the welding operation, the headband is often provided with a rotating shaft at the ear side position of the wearer, and the mask shell can rotate relative to the headband through the rotating shaft, but the heads of different wearers have individual difference, and when the wearer wears the welding mask in a welding operation mode, the front and back positions of the welding mask are difficult to adjust for the heads with different sizes, so that problems can occur.

When the head of the wearer is small, the headband is tightened to enable the rotating shaft to be forced to change the position backwards relative to the ear side position of the wearer, so that the mask shell can also change the position synchronously, the lens group on the mask shell is too close to the eyes of the wearer, and the use is inconvenient; the mask shell is also very close to the face of the wearer, which may affect breathing and be uncomfortable to wear.

When the head of the wearer is large, the headband is loosened so that the rotating shaft can be forced to change position forwards relative to the ear side position of the wearer, so that the whole welding mask changes position, the center of gravity is forward, the wearing is uncomfortable, a large oppressive feeling can be brought to the wearer, and the normal welding operation is affected.

Therefore, it is urgently required to develop a new welding mask to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a welding mask for thereby the position of welding mask when solving current bandeau and tighten up or relax leans on preceding or thereby wears uncomfortable, the problem that influences normal welding operation.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a welding mask, welding mask includes the face guard casing and locates bandeau in the face guard casing, the bandeau include with the head circumference contact of wearer's head circumference and with the top strip that the head circumference is connected and is contacted with the top of the head of wearer, the bandeau still including adjust the connecting piece of the girth of head circumference, tighten up or relax according to the different head circumferences of wearer during the bandeau, the girth of head circumference is adjusted to the connecting piece, makes welding mask back-and-forth movement position realizes the adjustment of its centre of gravity position.

According to the utility model discloses an embodiment, the connecting piece is buckle structure.

According to the utility model discloses an embodiment, buckle structure include the bayonet socket and with the position is detained that the bayonet socket corresponds, the bayonet socket includes a plurality of through-hole, and is different the through-hole with detain the position lock in order to provide a plurality of adjustment gear.

According to the utility model discloses an embodiment, the head band include the forehead area and with the occipital neck pad that the forehead area corresponds, the top band include left side area and with the right side area that left side area is connected, the connecting piece will the forehead area with the top band is connected.

According to an embodiment of the present invention, the bayonet is provided on the forehead strap, the buckle position is provided on the left strap and/or the right strap.

According to an embodiment of the present invention, the bayonet is provided on the left strap and/or the right strap, the buckle is provided on the forehead strap.

According to the utility model discloses an embodiment, the head circumference area include the forehead area and with the occipital cervical pad that the forehead area corresponds, the apical lamella include left side area and with the right side area that left side area is connected, the forehead area include with the first forehead area that left side area is connected and with the second forehead area that right side area is connected, the connecting piece will first forehead area with the second forehead area is connected.

According to an embodiment of the present invention, the bayonet is provided on the first forehead band and/or the second forehead band, and the buckle position is provided on the second forehead band and/or the first forehead band.

According to the utility model discloses an embodiment, detain the position and locate when first forehead takes, first forehead takes and is equipped with the first clamping part of a pair of outside extension, the bayonet socket with when detaining the position lock, first clamping part centre gripping the second forehead area.

According to the utility model discloses an embodiment, the second forehead area is equipped with a pair of second clamping part of inside extension, the bayonet socket with when detaining the position lock, the centre gripping of second clamping part first forehead area.

Compared with the prior art, the utility model provides a welding mask has following advantage:

the utility model provides a welding face guard is equipped with the connecting piece on the bandeau, according to wearer's different head circumference, adjusts the girth of head shroud through the connecting piece, makes welding face guard back-and-forth movement position realizes the adjustment of its focus position, even there is the individual difference in wearer's head, and welding face guard's position neither can excessively lean on in the front in order to avoid bringing great oppression sense for the wearer, also can excessively lean on the back in order to avoid the wearer to feel uncomfortable, improves the comfort level of wearing.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:

fig. 1 is a schematic structural view of the headband provided by the present invention in normal wearing;

fig. 2 is a schematic structural view of a headband according to a first embodiment of the present invention;

FIG. 3 is an exploded view of the headband of FIG. 2;

FIG. 4 is an enlarged view of portion A of the headband of FIG. 3;

FIG. 5 is an enlarged view of portion B of the headband of FIG. 3;

fig. 6 is a schematic structural view of a headband according to a second embodiment of the present invention;

fig. 7 is a schematic structural view of a headband according to a third embodiment of the present invention;

FIG. 8 is a partial cross-sectional view of the headgear shown in FIG. 7 taken along line C-C;

fig. 9 is a schematic structural view of a headband according to a fourth embodiment of the present invention;

fig. 10 is an exploded view of the headband of fig. 9.

Reference numerals

100-headband, 1-rotation axis,

2-head girth band, 21-forehead band,

211-a telescopic part, 212-a fixed part,

213-buffer plate, 2131-third extension part,

2132-buffer, 214-fixed bit,

215-first forehead strap, 2151-first grip,

216-second forehead strap, 2161-second grip,

22-neck pillow, 221-knob mechanism,

3-top belt, 31-left belt,

311-left strap extension strap, 32-right strap,

321-right belt extension belt, 4-connecting piece,

41-bayonet, 411-through hole,

412-fixing feet, 413-cover plate,

414-second connecting strap, 42-fastening position,

421-first connecting band, 422-projection,

4221-a first extension, 4222-a second extension,

200-mask shell.

Detailed Description

The present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific examples described in the following embodiments of the present invention are merely illustrative of specific embodiments of the present invention and do not constitute limitations on the scope of the invention.

The invention is further described with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1, fig. 1 is a schematic structural view of the headband provided by the present invention when being worn normally. The present embodiment provides a welding helmet that includes a helmet shell 200, and a headband 100 disposed within the helmet shell 200.

The mask shell 200 serves as the main body of the welding mask and provides protection for the head of a welder; the headband 100 secures the mask shell 200 to the head of a wearer.

The headband 100 is provided with a rotation axis by which the mask shell 200 is rotatable with respect to the headband 100 at a position on the ear side of the wearer.

The position of the rotation axis corresponds to the position of the center of gravity of the welding mask, and when the position of the rotation axis is moved, the position of the welding mask and the position of the center of gravity are also moved relatively.

As shown in fig. 2, fig. 2 is a schematic structural diagram of a headband according to a first embodiment of the present invention. The headband 100 comprises a head circumference belt 2 contacting with the head circumference of a wearer, a top belt 3 connected with the head circumference belt 2 and contacting with the top of the head of the wearer, and a connecting piece 4 for adjusting the circumference of the head circumference belt 2, wherein the head circumference belt 2 and the top belt 3 are connected to form the headband 100, and the headband 100 and the mask shell 200 are connected to form the welding mask for being worn by welders during welding or other dangerous operations. Of course, the headband 100 is also suitable for use with protective equipment such as headgear.

It should be noted that, in the present invention, the visual direction when the welder normally wears the welding mask is the front, and the corresponding direction is the rear; the direction of the head top is taken as the upper part, and the direction corresponding to the upper part is taken as the lower part; when the wearer normally wears the welding mask, the headband 100 is used as a boundary, the position of the wearer is inner, and the position of the wearer is outer correspondingly; the normal wearing refers to a state of the welding mask when a welder performs a welding operation, that is, a state in which the mask shell 200 of the welding mask is positioned right in front of the eyes of the welder.

When the headband 100 is tightened or loosened, the connecting piece 4 adjusts the circumference of the head surrounding band 2 according to different head circumferences of wearers, so that the welding mask moves back and forth to adjust the position of the center of gravity of the welding mask, even if the heads of different wearers have individual differences, the front and back positions of the welding mask can be adjusted no matter the headband 100 is tightened or loosened, and the comfort degree of the wearers when the wearers wear the welding mask is ensured.

Taking this embodiment as an example, the position of the rotation axis 1 is above the ears of the wearer, the center of gravity of the welding mask is centered, the comfort of the wearer is relatively ideal, when the headband 100 is tightened or loosened, the position of the center of gravity of the welding mask is adjusted by adjusting the connecting piece 4, the position of the rotation axis 1 is always above the ears of the wearer, and the position of the welding mask is neither excessively forward to avoid great oppression to the wearer nor excessively backward to avoid discomfort to the wearer no matter the head of the wearer is large or small.

As shown in fig. 2, the headband 2 includes a forehead band 21 and a neck pillow 22 corresponding to the forehead band 21, the forehead band 21 is in close contact with the forehead of the wearer, the neck pillow 22 is in close contact with the back of the head of the wearer, and when the headband 100 is worn by the wearer, the headband 2 fixes the headband 100 on the head of the wearer with different tightening forces while applying different pressures to the head of the wearer.

In this embodiment, both ends of the forehead strap 21 are connected to the head strap 3, and both ends of the occipital neck pad 22 are connected to the head strap 3, but in other embodiments, the forehead strap 21 and the occipital neck pad 22 may be connected first and then to the head strap 3.

Further, the occipital neck pad 22 is provided with a knob mechanism 221 for adjusting the tightening force of the headband 2, and of course, the knob mechanism 221 may be provided on the forehead band 21, or may be provided at a middle connection portion where the forehead band 21, the occipital neck pad 22, and the parietal band 3 meet.

As shown in fig. 3, fig. 3 is an exploded view of the headband of fig. 2. The structure of the pillow is not shown in fig. 3 to show the structure more clearly. Further, the forehead strap 21 includes a plurality of stretchable portions 211 arranged at intervals, and fixing portions 212 arranged between the adjacent stretchable portions 211, and the stretchable portions 211 are automatically stretched when the head band 2 is tightened.

When the wearer wears the headband 100, the forehead band 21 receives a pulling force that is tightened to both sides no matter the headband 2 is tightened by a knob mechanism, a gear mechanism, or other means, so that the expansion part 211 expands and contracts automatically when the headband 2 is tightened, the tightening force is dispersed, the compression feeling of the tightening force on the wearer's head is reduced while the headband 100 is fixed, and the wearing experience of the wearer is improved.

When the headband is worn, the telescopic parts 211 automatically stretch so that all parts of the headband 100 are tightly attached to the head of a wearer with proper force, so that a uniform damping effect is provided for the mask shell 200, the headband 100 provides uniform support when being accidentally impacted by external force, sufficient safety protection is provided for the wearer, and the safety of the wearer is guaranteed.

The telescopic part 211 is made of an elastic material and has certain elasticity, and when the head surrounding band 2 is tightened, the telescopic part 211 automatically stretches; when the head shroud 2 is loosened, the expansion portion 211 is automatically retracted.

The expansion part 211 is preferably formed to extend inward or outward from the end of two adjacent fixing parts 212. The inward extension refers to extension from the front to the rear, and the outward extension refers to extension from the rear to the front.

In this embodiment, the telescopic portion 211 is a telescopic slot extending inward, i.e. a V-shape, and if the telescopic portion 211 extends outward, it is an inverted V-shape, of course, the shape of the telescopic portion 211 is not limited, and may be any one or combination of U-shape, inverted U-shape, V-shape, inverted V-shape, or other shapes; other structures are possible as long as the structure has certain elasticity and can reduce the tension force.

The fixing portion 212 is used to connect the expansion portion 211 and the occipital pad 22, and of course, the expansion portion 211 may be used to connect the occipital pad 22. The fixing portion 212 is in close contact with the forehead of the wearer when worn.

In this embodiment, the fixing portion 212 and the stretchable portion 211 are uniformly distributed along the circumferential direction of the forehead belt 21, so that the tightening force is more uniformly dispersed, and the comfort of the wearer is improved. Of course, in other embodiments, the fixing portion 212 and/or the expansion portion 211 may also be designed to have different distribution manners according to different stress positions, such as uneven distribution, or more expansion portions 211 disposed at positions that are stressed more, and less expansion portions 211 disposed at positions that are stressed less.

Further, the forehead strap 21 further includes a cushion piece 213 disposed adjacent to the expansion portion 211, and the cushion piece 213 further cushions the tightening force, thereby reducing the discomfort of the wearer when the headband 2 is tightened.

Furthermore, at least one of the fixing portions 212 is the buffer sheet 213, so that the processing is more convenient and the structure is simpler. The fixing portion 212 may be the entire buffer sheet 213, or a part of the fixing portion 212 may be the buffer sheet 213.

In this embodiment, there are three forehead straps 21, and the middle forehead strap 21 is connected to the other two forehead straps 21, but the number of the forehead straps 21 may be other numbers, and the larger the number is, the more the tightening force is dispersed, the more uniform the tightening force is, and the less the pressing feeling on the wearer is; the width of each of the forehead bands 21 may also be different; the curvature of each of the forehead straps 21 may also be different or have no curvature; the expansion portion 211 may be provided only on one of the forehead straps 21.

Further, buffer piece 213 has the radian, and is inseparabler with the laminating of wearer's head, tightens up during the head shroud 2, the radian can increase buffer piece 213 with the area of pars contractilis 211, further the power of tightening of dispersion improves the wearing experience of wearer. The buffer sheet 213 may have a curvature on one side and no curvature on the other side; the buffer pieces 213 may have a curvature on one side and a curvature on the other side; the cushion pieces 213 of one forehead strap 21 may have a curvature, and the cushion pieces 213 of the other forehead strap 21 may not have a curvature, and may be designed according to actual conditions, and are not limited.

In this embodiment, the number of the cushioning pieces 213 in each forehead strap 21 is 5, and the number of the expansion parts 211 is 6, and in other embodiments, the number of the fixing parts 212, the number of the cushioning pieces 213, and the number of the expansion parts 211 can be flexibly designed according to the tightening manner of the forehead strap 21 and the stress of the wearer.

As shown in fig. 2 and 3, the top tape 3 includes a left tape 31 and a right tape 32 connected to the left tape 31. Specifically, one end of the left strap 31 is connected to the forehead strap 21, the other end thereof is connected to the occipital cervical pad 22, a left strap extension 311 extends out from the middle of the left strap 31, the right strap 32 has the same structure, a right strap extension 321 extends out from the middle of the right strap 32, the left strap extension 311 is connected to the right strap extension 321 to form an extension strap, and the extension strap fixes the headband 100 to the top of the head of the wearer.

Further, the two rotation axes 1 are provided correspondingly and are respectively provided at the middle portions of the left belt 31 and the right belt 32, but the rotation axes 1 may be provided at other positions, and are not limited thereto.

Further, the stretchable part 211 may be provided on the left belt 31 or the right belt 32.

The connector 4 connects the forehead strap 21 with the head strap 3 for adjusting the circumference of the head band 2.

Furthermore, the connecting piece 4 is of a buckle structure, so that the structure is simple and the adjustment is convenient; of course, the connecting member 4 is not limited to a snap structure, and a structure capable of adjusting the circumference of the head surrounding band 2 is within the scope of the present application, such as a telescopic structure.

As shown in FIG. 4, FIG. 4 is an enlarged view of portion A of the headband of FIG. 3. Further, the connecting member 4 includes a bayonet 41 and a fastening portion 42 corresponding to the bayonet 41, the bayonet 41 includes a plurality of through holes 411, and according to the individual difference of the head of the wearer, the fastening portion 42 is fastened with different through holes 411 to provide a plurality of adjusting positions, adjust the circumference of the head shroud 2, and is suitable for heads with different sizes to meet the requirement of different wearers on comfort.

The shape and number of the through holes 411 are designed correspondingly according to actual situations, and are not limited specifically, and may be circular, square or other shapes, two or more, may be arranged at equal intervals, or may be arranged at different intervals; in this embodiment, the through holes 411 are three through holes arranged at equal intervals, and are rectangular, and S, M, L three steps are respectively provided, so as to be suitable for heads with different sizes.

As shown in FIG. 5, FIG. 5 is an enlarged view of portion B of the headband of FIG. 3. The buckle position 42 includes a first connecting strap 421 and a protrusion 422 disposed on the first connecting strap 421, taking the left strap 31 as an example, the protrusion 422 includes a first extending portion 4221 extending outward from the surface of the left strap 31 and a second extending portion 4222 extending from the first extending portion 4221 in a direction away from the first connecting strap 421, the protrusion 422 is buckled with different through holes 411, and the circumference of the head shroud 2 is adjusted through different gears.

Further, as shown in fig. 4, the bayonet 41 further includes a plurality of fixing legs 412 disposed on an outer surface of the forehead strap 21, and a cover plate 413 disposed on the fixing legs 412, a plurality of through holes 411 are disposed on the cover plate 413, and a space formed between the plurality of fixing legs 412 and the cover plate 413 is passed through by the first connection strap 421 of the fastening seat 42, so as to improve stability of the connection member 4.

In this embodiment, the bayonet 41 is provided on the forehead strap 21, and the fastening position 42 is provided on the left strap 31 and the right strap 32. Of course, the fastening position 42 may also be disposed on the left strap 31 or the right strap 32, that is, on one side of the top strap 3, and the circumference of the head circumference strap 2 may be adjusted.

The connecting piece 4 is buckled by the bayonet 41 and the buckling position 42 to adjust the length of the forehead band 21 and further adjust the circumference of the head surrounding band 2; when the head of the wearer is small, the connecting piece 4 adjusts the circumference of the head surrounding band 2 to be shortened, so that the welding mask moves forwards to adjust the position of the center of gravity of the welding mask, even if the head band 100 is tightened, the position of the rotating shaft 1 is always above the ears of the wearer, the position of the welding mask does not move backwards, the breathing of the wearer is not influenced, and the wearer is prevented from feeling uncomfortable; when the head of a wearer is large, the connecting piece 4 adjusts the circumference of the head surrounding band 2 to be lengthened, so that the welding mask moves backwards, the position of the center of gravity of the welding mask is adjusted, even if the headband 100 is loosened, the position of the rotating shaft 1 is always above the ears of the wearer, the center of gravity cannot move forwards, the wearer is prevented from being pressed greatly, the normal operation of a welder is not influenced all the time, and good comfort is kept.

Of course, the connecting element 4 can also be applied to the pillow 22; it can also be applied to the top belt 3 for the connection of the left belt 31 and the right belt 32.

Example two

As shown in fig. 6, fig. 6 is a schematic structural view of a headband according to a second embodiment of the present invention. The difference between the headband provided by the embodiment and the headband provided by the embodiment I is that:

the connecting member 4 is a set of snap structures, the bayonet 41 is disposed on the left strap 31 and the right strap 32, and the snap 42 is disposed on the forehead strap 21. Of course, the bayonet 41 may be provided on the left strap 31 or the right strap 32, that is, on one side of the top strap 3, and the circumferential length of the head shroud 2 may be adjusted.

Further, the bayonet 41 includes a second connecting band 414, and the through hole 411 is provided at one end of the second connecting band 414 for fastening the fastening position 42.

Further, the forehead strap 21 is provided with a fixing position 214, and the fixing position 214 is used for fixing the other end of the second connecting strap 414.

EXAMPLE III

As shown in fig. 7 and 8, wherein fig. 7 is a schematic structural diagram of a headband according to a third embodiment of the present invention; fig. 8 is a cross-sectional view of the headgear shown in fig. 7 taken along line C-C. The difference between the headband provided by the embodiment and the headband provided by the second embodiment is that:

the connecting member 4 has two sets of fastening structures, the bayonet 41 of the first set of fastening structure is disposed on the left belt 31 and the right belt 32, and the fastening position 42 is disposed on the forehead belt 21. In this embodiment, the through hole 411 of the bayonet 41 of the first set of snap structures is circular.

The bayonet 41 of the second set of buckle structures is arranged on the forehead strap 21, the buckle position 42 of the second set of buckle structures is arranged at the end of the second connecting strap 414 far away from the through hole 411, and the second set of buckle structures enables the connection between the head surrounding strap 2 and the top strap 3 to be more stable and firmer.

Furthermore, the pair of the buffer pieces 213 are disposed on two sides of one of the fixing portions 212, the buffer piece 213 includes a third extending portion 2131 connected to the fixing portion 212 and a buffer portion 2132 connected to the third extending portion 2131, and the buffer portion 2132 contacts with the forehead of the wearer to prevent the wearer from being pressed by a large tightening force. The number of the third extending portions 2131 is two, which provides sufficient support for the buffering portion 2132, however, the number of the third extending portions 2131 may also be one or more, and the adjacent third extending portions 2131 may also be connected.

Example four

As shown in fig. 9 and 10, wherein fig. 9 is a schematic structural view of a headband according to a fourth embodiment of the present invention; fig. 10 is an exploded view of the headband of fig. 9. The difference between the headband provided by the embodiment and the headband provided by the second embodiment is that:

the head band 2 includes a forehead band 21 and a occipital pad 22 corresponding to the forehead band 21, and the head band 3 includes a left band 31 and a right band 32 connected to the left band 31. The two ends of the neck pillow 22 are respectively connected with the left belt 31 and the right belt 32.

The forehead strap 21 includes a first forehead strap 215 connected to the left strap 31 and a second forehead strap 216 connected to the right strap 32, and the connector 4 connects the first forehead strap 215 to the second forehead strap 216.

Further, the first forehead strap 215 and the left strap 31 are integrally formed, and the second forehead strap 216 and the right strap are integrally formed.

The connecting piece 4 is a first set of buckle structures, the buckle positions 42 of the first set of buckle structures are arranged on the first forehead strap 215, and the bayonets 41 of the first set of buckle structures are arranged on the corresponding second forehead strap 216; of course, the bayonet 41 may be disposed on the first forehead strap 215, and the fastening position 42 may be disposed on the corresponding second forehead strap 216.

Further, when the fastening position 42 is provided on the first forehead strap 215, the first forehead strap 215 is provided with a pair of first clamping portions 2151 extending outward, and when the bayonet 41 and the fastening position 42 are fastened, the first clamping portions 2151 clamp the second forehead strap 216 to ensure structural stability.

Further, the second forehead strap 216 is provided with a pair of second clamping portions 2161 extending inwards, and when the bayonet 41 and the fastening position 42 are fastened, the second clamping portions 2161 clamp the first forehead strap 215, further ensuring the structural stability.

Furthermore, the connecting part 4 further comprises a second group of buckling structures, the bayonet 41 of the second group of buckling structures is arranged near the buckling position 42 of the first group of buckling structures, and the buckling position 42 of the second group of buckling structures is arranged near the bayonet 41 of the first group of buckling structures, so that the connection stability is improved. It should be noted that the snap locations 42 of the second set of snap features are not shown in fig. 10 due to the angle. The connecting member 4 may also include multiple sets of snap features, and the number and shape are not limited.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.

Claims (10)

1. A welding mask, the welding mask includes a mask shell (200) and a headband (100) arranged in the mask shell (200), the headband (100) includes a head circumference belt (2) contacting with the head circumference of a wearer and a top belt (3) connected with the head circumference belt (2) and contacting with the top of the head of the wearer, characterized in that the head circumference belt (2) includes a forehead belt (21) and a neck pillow (22) corresponding to the forehead belt (21), a connecting piece (4) adjusting the length of the forehead belt (21), the connecting piece (4) adjusting the length of the forehead belt (21) according to different head circumferences of the wearers, so that the welding mask moves back and forth to realize the adjustment of the gravity center position.

2. Welding mask according to claim 1, wherein the connecting piece (4) is a snap-fit construction.

3. Welding mask according to claim 2, wherein the snap structure comprises a bayonet (41) and a snap location (42) corresponding to the bayonet (41), the bayonet (41) comprising a number of through holes (411), different ones of the through holes (411) snapping into the snap location (42) to provide a plurality of adjustment steps.

4. Welding mask according to claim 3, wherein the headband (2) comprises a forehead strap (21) and a occipital neck pad (22) corresponding to the forehead strap (21), the top strap (3) comprises a left strap (31) and a right strap (32) connected to the left strap (31), and the connector (4) connects the forehead strap (21) to the top strap (3).

5. Welding mask according to claim 4, wherein the bayonet (41) is provided on the forehead strap (21) and the catch (42) is provided on the left strap (31) and/or the right strap (32).

6. Welding mask according to claim 4, wherein the bayonet (41) is provided on the left strap (31) and/or the right strap (32) and the catch (42) is provided on the forehead strap (21).

7. Welding mask according to claim 3, wherein the headband (2) comprises a forehead strap (21) and a occipital neck pad (22) corresponding to the forehead strap (21), the headband (3) comprises a left strap (31) and a right strap (32) connected to the left strap (31), the forehead strap (21) comprises a first forehead strap (215) connected to the left strap (31) and a second forehead strap (216) connected to the right strap (32), and the connection (4) connects the first forehead strap (215) to the second forehead strap (216).

8. Welding mask according to claim 7, wherein the bayonet (41) is provided on the first forehead strap (215) and/or the second forehead strap (216), and the catch (42) is provided on the respective second forehead strap (216) and/or the first forehead strap (215).

9. The welding mask according to claim 8, wherein when the snap (42) is provided on the first forehead strap (215), the first forehead strap (215) is provided with a pair of first clamping portions (2151) extending outwardly, and when the bayonet (41) and the snap (42) are snapped together, the first clamping portions (2151) clamp the second forehead strap (216).

10. The welding mask as recited in claim 9, wherein the second forehead strap (216) is provided with a pair of inwardly extending second clamping portions (2161), the second clamping portions (2161) clamping the first forehead strap (215) when the bayonet (41) and the catch (42) are engaged.

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