CN113367889A

CN113367889A - Welding mask assembly and lamp assembly thereof

Info

Publication number: CN113367889A
Application number: CN202110783986.4A
Authority: CN
Inventors: 吴子乾
Original assignee: Tekman Nanjing Electronics Co ltd
Current assignee: Tecman Nanjing Safety Protection Equipment Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-09-10

Abstract

The application discloses welding face guard subassembly includes: a headband structure (300); a welding helmet (100), the welding helmet (100) having a shell (110); and a light fixture assembly (200), the light fixture assembly (200) including a mounting member (400), a light fixture (210), and a light fixture (240) removably mounted on the light fixture (210), the mounting member (400) being non-rotatably mounted to the headband structure (300), the housing (110) being rotatably coupled to the mounting member (400) about an axis of rotation defined by the mounting member (400), the light fixture (210) being non-rotatably coupled to the mounting member (400), at least a portion of the housing (110) being positioned between the headband structure (300) and the light fixture (210) and being rotatable relative to the mounting member (400).

Description

Welding mask assembly and lamp assembly thereof

Technical Field

The present application relates generally to welding helmet assemblies and, more particularly, to welding helmet assemblies equipped with a removable light fixture assembly to facilitate viewing of the weld site.

Background

Welding helmet assemblies, particularly auto-darkening welding helmet assemblies, generally include a headband structure for wearing on a user's head, and a welding helmet removably attached to the headband structure. The welding mask is provided with a dark color filter or an automatic light changing filter. For example, an auto-darkening filter is equipped with a liquid crystal sheet that is transparent in a normal state, but can be automatically darkened when a welding operation is performed, particularly at the moment when arc welding starts, protecting human eyes from harmful rays.

When welding operation is performed, a user lifts the welding mask from time to time as needed, and observes the welding part with naked eyes. For a dark working environment, after a user lifts the welding mask, the user needs to use a flashlight to illuminate the welding position, which causes inconvenience. In addition, when the welding position is in a narrow working space, it is not convenient to arrange a flashlight for irradiation.

Therefore, there is a need for a welding helmet that can be easily modified to an existing welding helmet without increasing an excessive burden, and that can allow a user of the welding helmet to easily observe a welding site in a dark work environment, thereby improving welding quality.

Disclosure of Invention

An object of the application is to provide a novel lighting fixture that can be conveniently installed for use with current welding face mask to provide the user of welding face mask with conveniently observing the function of welding position under dim operational environment.

According to one aspect of the present application, there is provided a welding helmet assembly comprising:

a headband structure on which a mounting member is detachably attached in a non-rotatable manner;

a welding helmet having a shell; and

a light assembly received by the mount, the light assembly including a light holder and a light removably mounted on the light holder, the housing rotatably coupled to the mount about an axis of rotation defined by the mount, the light holder rotatably non-removably coupled to the mount, at least a portion of the housing positioned between the headband structure and the light holder and rotatable relative to the mount.

Optionally, the mount is selectively linearly movably mounted relative to the strap section of the headband structure.

Optionally, the mount comprises a base located on the inner side of the band section and a post extending perpendicularly from the base, the post extending at least partially outwardly from the band section through the band section, the post comprising a non-cylindrical outer surface section, the lamp holder being formed with features formed complementarily to the outer surface section to engage the outer surface section.

Optionally, the feature of the lamp holder is defined by a protrusion extending on one side of the holder's holder base, the protrusion having a contoured surface complementary in shape to the outer surface section to contact a portion of the outer surface section.

Optionally, a fixed spacer and a rotary spacer are provided between the belt section and at least a portion of the housing through which the upright passes, the fixed spacer having a through hole which, viewed in a cross-section perpendicular to the axis of rotation, is complementary in shape to the outer surface section, the rotary spacer being in rotatable contact with the fixed spacer relative to the fixed spacer, and the rotary spacer comprising a section of a non-circular outer circumferential surface projecting axially outwards on its outer side, the section of the non-circular outer circumferential surface engaging in an aperture in at least a portion of the housing which is formed complementary in shape to the section of the non-circular outer circumferential surface.

Optionally, the post further comprises a threaded section formed adjacent or immediately downstream of the outer surface section in an outward direction, the threaded section passing through the anchor seat to engage with a retaining knob.

Alternatively, the stationary spacer is formed with a section of cylindrical or partially cylindrical outer circumference extending axially outward on its outer side, and the rotary spacer is formed with a circular through hole to receive the section of cylindrical or partially cylindrical outer circumference.

Optionally, the protrusion of the fixed base of the lamp holder contacts the second outer surface section in the circular through hole.

Optionally, the securing knob is threadably engaged with the threaded section to selectively apply a clamping force that axially clamps the band section, the securing block, the rotating block, at least a portion of the housing, and the anchor block together between the base and the securing knob.

According to another aspect of the present application, there is also provided a lamp assembly for the aforementioned welding helmet assembly, the lamp assembly comprising:

a lamp holder; and

a lamp detachably mounted on the lamp holder,

the light assembly is received by a mounting member structurally disposed on a headband of the welding helmet assembly to which the light holder is non-rotatably removably attached, and at least a portion of a housing of the welding helmet assembly is positioned between the headband structure and the light holder and is rotatable relative to the mounting member.

According to another aspect of the present application, there is provided a welding helmet assembly comprising:

a headband structure;

a welding helmet having a shell; and

a lamp assembly including a mounting member, a lamp holder, and a lamp removably mounted to the lamp holder, the mounting member being non-rotatably mounted to the headband structure, the housing being rotatably coupled to the mounting member about an axis of rotation defined by the mounting member, the lamp holder being non-rotatably removably coupled to the mounting member, at least a portion of the housing being positioned between the headband structure and the lamp holder and being rotatable relative to the mounting member. Like this, in the welding face guard subassembly according to this application, can relatively keep fixed in position between bandeau structure and the lighting fixture unchangeable, welding face guard can rotate for the bandeau structure as required simultaneously, is convenient for expose the user who wears welding face guard subassembly and exposes its head and observes the external conditions.

Optionally, the mount is mounted linearly movably to a strap section of the headgear structure.

Optionally, a through slot is formed in the band section, the mount having a non-cylindrical first outer surface section received within the through slot to render the mount non-rotatable and linearly movable relative to the band section.

Optionally, the mount comprises a base and a stud extending perpendicularly from the base, the first outer surface section being formed on the stud, the first outer surface section having two mutually opposed and flat faces to oppose and/or contact respectively two mutually opposed and parallel sides of the channel.

Optionally, the base is located inboard of the band section and the post extends at least partially outwardly from the band section, the post further comprising a non-cylindrical second outer surface section formed on the post adjacent or immediately downstream of the first outer surface section in the outward direction, the lamp holder being formed with features complementarily shaped to the second outer surface section to engage the second outer surface section.

Optionally, the feature of the lamp holder is defined by a protrusion extending on one side of the holder mounting base, the protrusion having a contoured surface complementary in shape to the second exterior surface section to contact a portion of the second exterior surface section.

Optionally, a fixed spacer and a rotary spacer are provided between the belt section and at least one part of the housing, through which the upright passes, the fixed spacer having a through-hole which, viewed in a cross-section perpendicular to the axis of rotation, is complementary in shape to the second outer surface section, the rotary spacer being in rotatable contact with the fixed spacer relative to the fixed spacer, and the rotary spacer comprising a section of a non-circular outer circumferential surface projecting axially outwards on its outer side, the section of the non-circular outer circumferential surface engaging in an aperture in at least one part of the housing which is formed complementary in shape to the section of the non-circular outer circumferential surface.

Optionally, the post further comprises a threaded section formed adjacent or immediately downstream of the second outer surface section in an outward direction, the threaded section passing through the anchor seat to be threadedly engaged with a fixing knob.

Alternatively, the stationary spacer is formed with a section of cylindrical or partially cylindrical outer circumference extending axially outward on its outer side, and the rotary spacer is formed with a circular through hole to receive the section of cylindrical or partially cylindrical outer circumference. Preferably, the section of the outer periphery which is cylindrical or part-cylindrical and the circular through hole are coaxial with the axis of rotation.

Optionally, two linearly extending ribs are formed on the inner side of the belt section adjacent to two mutually opposite and parallel sides of the through slot, respectively, and the base is provided with two linear grooves for receiving the ribs, respectively, to guide the linear movement of the mounting member relative to the belt section.

Optionally, the protrusion of the holder passes through the aperture of the housing, in particular in the circular through hole, in contact with the second outer surface section.

Optionally, the first outer surface section and/or the second outer surface section is rectangular or square as seen in a cross-section perpendicular to the axis of rotation. In the context of the present application, reference to the term "rectangular" or "square" also includes that said "rectangular" or "square" is a corresponding shape with rounded corners.

Optionally, the luminaire is a luminaire capable of emitting a directional light beam.

Optionally, the light holder remains stationary relative to the mount as the housing rotates about the axis of rotation defined by the mount.

Optionally, the lamp holder further comprises a lamp holder arranged opposite to the fixing seat, the lamp holder can detachably receive the lamp holder, and the lamp holder can detachably receive the lamp.

According to another aspect of the present application, there is also provided a light fixture assembly for a welding helmet assembly, the light fixture assembly comprising:

a mounting member, a lamp holder, and a lamp removably mounted on the lamp holder, the mounting member being non-rotatably mountable to the headband structure of the welding helmet assembly, the mounting member defining a rotational axis about which a shell of a welding helmet of the welding helmet assembly is rotatably coupled to the mounting member,

the light holder is non-rotatably removably connected to the mounting member, and at least a portion of the housing is positioned between the headband structure and the light holder and is rotatable relative to the mounting member.

Adopt the above-mentioned technical means of this application, the user who wears the welding face guard subassembly can directly lift the light that the welding face guard sent via lamps and lanterns and observe the welding position under narrow and small space and/or dim occasion, and the removal of welding face guard can not influence the location that lamps and lanterns sent light simultaneously, and convenient to use person observes more steadily. In addition, because lamps and lanterns are installed on the welding face guard through the lighting fixture that can dismantle, this kind of lighting fixture can be convenient for later stage conveniently upgrade and reform transform current welding face guard, makes it increase lamps and lanterns observation ability.

Drawings

The principles and aspects of the present application will be more fully understood from the following detailed description, taken in conjunction with the accompanying drawings. It is noted that the drawings may not be to scale for clarity of illustration and will not detract from the understanding of the present application. In the drawings:

FIG. 1 is a perspective view schematically illustrating a welding helmet assembly equipped with a light fixture assembly according to an embodiment of the present application, wherein a headband structure is not shown;

FIG. 1A is an exploded perspective view schematically illustrating a lamp assembly according to an embodiment of the present application;

FIG. 2 is an exploded view schematically illustrating a welding helmet equipped with a light holder according to an embodiment of the present application, a headband structure removably coupled to the light holder, and a partial display;

fig. 3 is a perspective view schematically illustrating a lamp holder according to an embodiment of the present application;

FIG. 4 is a partial perspective view schematically illustrating how a lamp holder interacts with a headband structure and a welding helmet according to an embodiment of the present application;

FIG. 5 is a perspective view schematically illustrating a welding helmet equipped with a lamp assembly according to an embodiment of the present application, wherein the welding helmet is in a position to shield a user's face;

FIG. 6 is a perspective view schematically illustrating a welding helmet equipped with a light fixture assembly according to an embodiment of the present application, wherein the welding helmet is in a position that is lifted so that a user's face is exposed so that the user can view the front;

FIG. 7 is a perspective view schematically illustrating a portion of a lamp assembly according to the present application.

Detailed Description

In the various figures of the present application, features that are structurally identical or functionally similar are denoted by the same reference numerals.

Fig. 1 schematically illustrates a welding helmet 100, on which welding helmet 100 a lamp assembly 200 according to an embodiment of the present application is mounted. It should be noted that the welding helmet 100 is removably mountable to a headgear structure (see fig. 2) that may be located within the space enclosed by the welding helmet 100, not shown in fig. 1. The headband structure is capable of being secured to a user's head. The welding helmet 100 is capable of pivoting about a particular pivot axis relative to the headgear structure. According to the technical scheme of the application, the lamp assembly 200 can be one or two. In the case where the lamp assembly 200 is one, the lamp assembly 200 may be installed at the left or right side of the welding mask 100. In the case where the lamp assembly 200 is two, the lamp assembly 200 may be installed at the left and right sides of the welding mask 100, respectively. Therefore, in the case of two lamp assemblies 200, the configuration thereof can be arranged in a mirror-symmetrical manner with respect to the vertical center plane of the welding helmet 100. That is, regardless of what is described below with respect to the lamp assembly 200 positioned on the left or right side, those skilled in the art may naturally consider that a similar structure may be applied to the lamp assembly 200 positioned on the right or left side.

As further shown in fig. 1A, according to one embodiment of the present application, a lamp assembly 200 may include a lamp holder 210, a lamp clip 230 removably mounted on the lamp holder 210 via a securing ring 220, a lamp 240 removably mounted on the lamp clip 230, and a securing knob 250 for removably securing the lamp holder 210 to a headband structure. In the illustrated embodiment, the light fixture 240 is elongated in shape and may be a miniature flashlight equipped with rechargeable batteries or a flashlight powered from an external battery via wires. In a preferred embodiment, the lamp 240 may be a lamp capable of emitting a directional beam of light, thereby facilitating a user wearing the welding helmet 100 to view the welding site. It should be clear to those skilled in the art that any other shape and/or configuration of the lamp can be used in the present application, as long as the emitted light beam has directivity to facilitate the user to observe the specific welding position.

In the present solution, the welding helmet 100 comprises a shell 110. An opening 120 is formed in the housing 110, and a dark color filter (not shown) or an auto-darkening filter (not shown) may be disposed in the opening 120. That is, the welding helmet 100 described in the present application may be a welding helmet equipped with only a dark color filter or, alternatively, an auto-darkening welding helmet.

With further reference to fig. 2, a headgear structure 300, a light fixture 210 according to embodiments of the present application, and a partially represented housing 110 of the welding helmet 100 are shown. The headband structure 300 is configured for securing on a user's head and may, for example, comprise a plurality of band segments. A through slot 310 is formed in a band section 320 of the headband structure 300 that, when secured, is generally located above and/or adjacent to a user's ear. It is contemplated that the through slots 310 may be formed in mirror symmetry in the left and right band segments 320 (only one of which is visible in FIG. 2) of the headband structure 300. The through slot 310 substantially exhibits a rectangular shape, in particular having two mutually opposite and parallel sides.

As shown in fig. 2, the mounting member 400 for securing the housing 110 of the welding helmet 100 and the lamp holder 210 with respect to the headband structure 300 may be inserted into the through-groove 310 from an inner space surrounded by the headband structure 300, so that at least a portion of the mounting member 400 may protrude outward from the headband structure 300. In the context of the present application, the terms "inner" and "outer" with respect to the headband structure 300 should be understood as referring to a direction toward the head of a user and a direction away from the head of a user when the headband structure 300 is worn by the user. For example, the inner space of the headband structure 300 refers to a space in which the head of a user is located when the user wears the headband structure 300, and the at least one portion of the mounting member 400 protrudes outward refers to the at least one portion protruding in a direction away from the head of the user. For another example, the inner side of band segment 320 refers to the side that faces toward the user's head when the user is wearing headband structure 300, and the outer side of band segment 320 refers to the side that faces away from the user's head when the user is wearing headband structure 300. Other features such as the housing 110, the lamp holder 210 and their components are also used with the above definitions unless otherwise noted.

The mount 400 generally includes a base 410 and a post 420 extending generally perpendicularly from the base 410. The base 410 is integrally formed with the upright 420. For example, the post 420 may be formed with a first outer surface section 420a that is non-cylindrical in shape proximate the base 410. For example, the first outer surface section 420a may be substantially rectangular, in particular square, in cross-section, in particular having two mutually opposite and straight faces (only one of which is shown in fig. 2). The cross-section is generally perpendicular to an axis of rotation defined by the mount 400 as described below about which the housing 110 can rotate. The distance between the two mutually opposite and flat faces of the first outer surface section 420a is configured to be substantially equal to or slightly smaller than the distance between the two mutually opposite and parallel sides of the through slot 310. In this manner, when mount 400 is mounted in place on strap section 320, first outer surface section 420a may be positioned just within channel 310, while the corresponding mating (or relative and/or contact between) the two opposing and flat faces of first outer surface section 420a and the two opposing and parallel sides of channel 310 may ensure that mount 400 cannot rotate relative to strap section 320, i.e., relative to headband structure 300. However, before mount 400 is unsecured (as described below), first outer surface section 420a of mount 400 may slide linearly back and forth in channel 310. To prevent discomfort from direct contact of the base 410 with the user's head, the headband structure 300 is further formed with a protective section spaced parallel to the band section 320 so that the base 410 of the mount 400 can be positioned between the protective section and the band section 320 in a manner that is not affected when moved.

To guide the sliding of the mount 400 relative to the strap section 320, in particular the headband structure 300, two mutually opposite linear grooves 411 are formed on the outer side of the base 410, adjacent to the first outer surface section 420 a. At the same time, two linearly extending ribs 311 are formed on the inner side of the belt section 320, which are respectively adjacent to two mutually opposite and parallel side edges of the through groove 310. Thus, when mount 400 is in place, the two linear grooves 411 of base 410 can correspondingly receive linear ribs 311 so that mount 400 can be guided to move linearly back and forth relative to band segment 320.

Adjacent or immediately downstream of the first outer surface section 420a in the outward direction, a non-cylindrical second outer surface section 420b is also formed on the post 420. For example, the second outer surface section 420b may be substantially rectangular, in particular square, in cross-section. The cross-section is generally perpendicular to an axis of rotation defined by the mount 400 as described below about which the housing 110 can rotate. The axial position of the second outer surface section 420b on the upright post 420 is such that, when the mount 400 is mounted in place relative to the headband structure 300, the second outer surface section 420b of the upright post 420 extends outwardly from the band section 320 of the headband structure 300. Further, adjacent or immediately downstream of the second outer surface section 420b in an outward direction, a section 420c provided with threads is also formed on the post 420 to be screwed with the fixing knob 250 to fasten the lamp holder 210.

A fixed spacer 500 and a rotating spacer 600 may also be disposed between the shell 110 and the headband structure 300 when the shell 110 of the welding helmet 100 is assembled to the headband structure 300. For example, the fixed spacer 500 is formed with a section 510 of cylindrical or partially cylindrical outer circumference on its outer side projecting axially outward. Meanwhile, a square through hole 520, particularly a square through hole, is formed coaxially with the central axis of the cylindrical or partially cylindrical section 510 to penetrate the fixing spacer 500. The square through hole 520 has a square cross section, particularly a square cross section, so that the second outer surface section 420b can just pass through the square through hole 520, so that the fixing spacer 500 cannot rotate relative to the mounting member 400. A section 620 with a non-circular outer circumference, for example a section 620 with a square outer circumference, is formed on the outer side of the rotary spacer 600 so as to project axially outward, i.e. the cross section of the outer circumference of the section 620 is square, in particular square. Meanwhile, a circular through-hole 610 is formed in the rotary spacer 600, particularly, in the section 620 thereof, coaxially with the section 620. The diameter of the circular through hole 610 is substantially equal to the outer circumferential diameter of the section 510 so that, when assembled, the rotary spacer 600 can be brought into contact with the fixed spacer 500 in such a way that its circular through hole 610 can just receive the section 510. Thus, after assembly, the rotary spacer 600 is freely rotatable relative to the fixed spacer 500, i.e. relative to the strap section 320, in particular the headband structure 300.

As shown in fig. 2 and 3, the lamp holder 210 generally includes an elongated or flat body and fixed holders 211 and lamp holders 212 at opposite ends of the body. The fixing base 211 is for contacting the shell 110 and the fixing knob 250 of the welding helmet 100 and is engaged with the pillar 420 of the mount 400. Lamp clip receptacle 212 is configured to receive lamp clip 230. It should be appreciated that the lamp holder 210 is shaped such that the plane in which the fixed base 211 is located is substantially perpendicular to the plane in which the lamp holder 212 is located. The holder 211 is formed on the inner side thereof with a hollow protrusion 211a having a non-circular cross section. For example, the inner and outer profile surfaces of the protrusion 211a are square, in particular square, and the terms "inner profile surface" and "outer profile surface" are used herein with reference to the hollow protrusion 211a itself, regardless of the previously specified directional terms "inner" and "outer".

Further, at a position corresponding to the mount 400 in the shell 110 of the welding mask 100, a non-circular aperture 111 is also formed. For example, the aperture is square, in particular square. The aperture 111 is sized to allow the post 420 to pass freely through and only just receive the section 620 of the rotating block 600. Furthermore, the aperture 111 is dimensioned such that the hollow protrusion 211a of the light receiving holder 210 can freely pass through the aperture 111 from a direction axially opposite to the section 620, i.e. the outer contour surface of the hollow protrusion 211a does not come into any contact with the aperture 111, while at the same time the inner contour surface of the hollow protrusion 211a can be at least partially received on the second outer surface section 420b of the upright 420 of the mounting member 400. Thus, as shown in fig. 4, since the segment 620 of the rotary cushion block 600 is non-rotatably received within the aperture 111 of the shell 110, the welding helmet 100, when subjected to a force, may cause the rotary cushion block 600 to rotate relative to the fixed cushion block 500, and thus relative to the headband structure 300. Meanwhile, since the hollow protrusion 211a of the lamp holder 210 is non-rotatably engaged with the pillar 420 of the mounting member 400, any rotational movement of the welding helmet 100 about the headband structure 300 does not affect the lamp holder 210, i.e., the lamp holder 210 can always remain stationary during rotation of the welding helmet 100. It can be seen that in a welding helmet assembly according to the present application, the mount 400 defines an axis of rotation about which the welding helmet 100, and in particular the shell 110, can rotate, and that the axis of rotation can move linearly relative to the headgear structure 300 as desired.

The fixing knob 250 is provided with a central threaded hole so as to be capable of being screwed with the threaded section 420c of the pillar 420. In this way, when assembling, after the mounting member 400 is inserted through the band section 320, the fixing cushion 500 and the rotating cushion 600 are sequentially fitted over the upright post 420, the shell 110 of the welding mask 100 is inserted through the upright post 420, and the fixing knob 250 is screwed onto the section 420c of the upright post 420 provided with the screw thread, so that the band section 320 of the headband structure 300, the fixing cushion 500, the rotating cushion 600, the shell 110 of the welding mask 100, and the lamp holder 210 are axially sandwiched between the base 410 of the upright post 400 and the fixing knob 250 with a certain appropriate fastening force, and the lamp holder 210 is held stationary with respect to the headband structure 300 during the rotation and rotation of the shell 110 with respect to the headband structure 300 as required. The threaded engagement of the securing knob 250 with the threaded section 420c ensures that a clamping force is selectively applied to axially clamp the strap section 320, the securing block 500, the rotating block 600, at least a portion of the housing 110, and the anchor 211 together between the base 410 and the securing knob 250. During use of a welding helmet assembly according to the present application, the clamping force may be released by unscrewing securing knob 250 relative to segment 420c to allow mount 400 to move linearly back and forth relative to strap segment 320, thereby adjusting the position of welding helmet 100, and in particular its shell 110, relative to headgear structure 300 accordingly. When adjusted to the proper position, the clamping force described above may be applied again by tightening fixing knob 250 again relative to section 420c, thereby axially clamping band section 320, fixing block 500, rotating block 600, at least a portion of housing 110, and anchor 211 together between base 410 and fixing knob 250, and housing 110 may still be free to rotate relative to headband structure 300 while light holder 210 may remain stationary relative to headband structure 300.

Referring again to fig. 3, a plurality of spaced apart lugs 212a are formed on the top surface of the lamp holder 212 of the lamp holder 210, the lugs 212a defining a receptacle for receiving the ball 231 of the lamp holder 230 (see fig. 1A). These lugs 212a are formed with external threads so as to be capable of being screwed with the internal threads of the fixing ring 220. Furthermore, as the securing ring 220 is screwed onto the lugs 212a, the volume of the receptacle enclosed by the lugs 212a can be correspondingly reduced, so that the ball 231 of the clip 230 is clamped against the lugs 212 a.

The light clip 230 is shown to include a ball head 231 and a clip portion 232 connected to the ball head 231 via a rod. In the illustrated embodiment, the clip portion 232 is, for example, cylindrical with a notch, so that the lamp 240 can be fixed by being pushed into the clip portion 232 through the notch. During assembly, the fixing ring 220 is first disposed on the lugs 212a, and then the ball 231 of the lamp clip 230 is inserted through the fixing ring 220 and received in the receptacle surrounded by the lugs 212 a. Then, the ball 231 is clamped and fixed to the lugs 212a by tightening the fixing ring 220. When it is desired to adjust the orientation of the light fixture 240, the ball 231 can be rotated and/or moved relative to the light fixture 210 by loosening the securing ring 220 (as shown in fig. 7), and tightening the securing ring 220 again fixes the adjusted position of the light clip 230 relative to the light fixture 210.

Fig. 5 is a perspective view schematically illustrating the welding helmet 100 equipped with the lamp assembly 200 according to an embodiment of the present application, wherein the welding helmet 100 is in a position to shield the face of a user. Fig. 6 is a perspective view schematically illustrating a welding helmet equipped with a lamp assembly according to an embodiment of the present application, in a position that is lifted so that a user's face is exposed so that the user can view the front. As can be seen by comparing fig. 5 and 6, by employing the present teachings, the welding helmet 100 can be rotated relative to the headband structure independently of the light fixture assembly 200. Therefore, a user of the welding mask can conveniently observe the welding position at any time by lifting the welding mask in a narrow and dark space, and meanwhile, the welding position can be illuminated relatively stably and is convenient for the user to observe because the lamp assembly 200 is kept stationary relative to the headband structure worn by the user. Further, the lamp assembly 200 according to the present application can be assembled on existing commercially available welding face masks, facilitating upgrading of these welding face masks.

It should be clear to a person skilled in the art that the illustrated embodiments merely set forth non-limiting examples of the present application and that they are not to be considered in any way limiting the scope of the present application. For example, in an alternative embodiment, the fixed block 500 may be omitted, and instead a cylindrical surface may be added to the upright 420 between the

segments

420a and 420b to engage a correspondingly formed circular hole in the rotary block 600 to ensure that the rotary block 600 is rotatable relative to the upright 420. In an alternative embodiment, the mount 400 may also be configured to not slide linearly relative to the headband structure 300, e.g., the base 410 of the mount 400 may be directly adhered to, or secured to, the headband structure via other fasteners, such as screws, to facilitate retrofitting existing headband structures.

Although specific embodiments of the present application have been described herein in detail, they have been presented for purposes of illustration only and are not to be construed as limiting the scope of the application. Further, it should be clear to those skilled in the art that the various embodiments described in this specification can be used in combination with each other. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present application.

Claims

1. A welding helmet assembly, comprising:

a headband structure (300) to which a mounting member (400) is detachably attached in a non-rotatable manner on the headband structure (300);

a welding helmet (100), the welding helmet (100) having a shell (110); and

a light fixture assembly (200) received by the mounting member (400), the light fixture assembly (200) including a light fixture (210) and a light fixture (240) removably mounted on the light fixture (210), the housing (110) rotatably coupled to the mounting member (400) about an axis of rotation defined by the mounting member (400), the light fixture (210) removably coupled to the mounting member (400) in a non-rotatable manner, at least a portion of the housing (110) positioned between the headband structure (300) and the light fixture (210) and rotatable relative to the mounting member (400).

2. The welding mask assembly of claim 1, wherein the mounting member (400) is selectively linearly movably mounted relative to the strap section (320) of the headgear structure (300).

3. The welding mask assembly of claim 1 or claim 2, wherein the mount (400) comprises a base (410) and a post (420) extending perpendicularly from the base (410), the base (410) being located inside the band section (320) and the post (420) extending at least partially outward from the band section (320) through the band section (320), the post (420) comprising a non-cylindrical outer surface section (420b), the lamp holder (210) being formed with features formed complementarily to the outer surface section (420b) to engage the outer surface section (420 b).

4. The welding mask assembly of claim 3, wherein the feature of the lamp holder (210) is defined by a protrusion (211a) protruding on one side of the fixed base (211) of the lamp holder (210) having a contoured surface complementary in shape to the outer surface segment (420b) to contact a portion of the outer surface segment (420 b).

5. Welding mask assembly according to claim 4, wherein a fixed cushion (500) and a rotating cushion (600) are provided between the strap section (320) and at least a portion of the shell (110) through which the upright (420) passes, the fixed cushion (500) having a through hole (520), the through-hole (520) is complementary in shape to the outer surface section (420b) as seen in a cross-section perpendicular to the axis of rotation, the rotating pad (600) is rotatably contacted with the fixed pad (500) relative to the fixed pad (500), and the rotary spacer (600) comprises a section (620) of a non-circular outer circumferential surface which projects axially outwards on the outer side thereof, the section (620) having a non-circular outer peripheral surface is engaged within an aperture (111) formed in at least a portion of the housing (110) complementary in shape to the section (620) having a non-circular outer peripheral surface.

6. The welding mask assembly of claim 5, wherein the post (420) further comprises a threaded section (420c) formed adjacent or immediately downstream of the outer surface section (420b) in an outward direction, the threaded section (420c) threaded through the anchor block (211) to a securement knob (250).

7. A welding mask assembly according to claim 6, wherein the fixed cushion (500) is formed with an outer peripheral cylindrical or part-cylindrical section (510) extending axially outward on its outer side, and the rotating cushion (600) is formed with a circular through hole (610) to receive the outer peripheral cylindrical or part-cylindrical section (510).

8. The welding mask assembly according to claim 7, wherein the protrusion (211a) of the holder (211) of the lamp (210) contacts the second outer surface section (420b) within the circular through hole (610).

9. The welding mask assembly of claim 8, wherein the securing knob (250) is threaded with the threaded section (420c) to selectively apply a clamping force that axially clamps the strap section (320), the securing block (500), the rotating block (600), at least a portion of the housing (110), and the anchor block (211) together between the base (410) and the securing knob (250).

10. A light fixture assembly (200) for a welding mask assembly, the light fixture assembly (200) comprising:

a lamp holder (210); and

a lamp (240) detachably mounted on the lamp holder (210),

the light fixture assembly (200) is received by a mounting member (400) provided on a headband structure (300) of the welding helmet assembly, the light holder (210) is detachably connected to the mounting member (400) in a non-rotatable manner, and at least a portion of a housing (110) of the welding helmet assembly is located between the headband structure (300) and the light holder (210) and is rotatable relative to the mounting member (400).