CN214157678U

CN214157678U - Welding mask with safety helmet and convenient to disassemble and assemble

Info

Publication number: CN214157678U
Application number: CN202022248888.4U
Authority: CN
Inventors: 冷崇兆; 李绍庚; 张为尧; 梁涛; 李官勇; 杨旸; 杨尚平
Original assignee: Yunnan Huadun Safety Technology Co ltd
Current assignee: Yunnan Huadun Safety Technology Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-09-10
Anticipated expiration: 2030-10-12

Abstract

A welding mask which is convenient to disassemble and assemble and is provided with a safety helmet is characterized in that the mask is rotatably connected to the safety helmet, a transition connecting piece is detachably connected to the safety helmet, and the mask is rotatably connected to the transition connecting piece; the structure that transition piece detachable connects on the safety helmet do: the left side and the right side of the cap edge of the safety cap are provided with slots, the lower part of the transition connecting piece made of engineering plastics is provided with a bolt, the bottom end of the bolt is provided with an inverted hook, the bolt is in clearance fit with the slots, the inverted hook is inverted on the lower edge of the inner side of the slots, the right side of the transition connecting piece is provided with a fixed end face fluted disc, and the fixed end face fluted disc is meshed with teeth on the rotatable end face fluted sleeve. The utility model relates to a rationally, the combination is ingenious, and the safety helmet is connected reliably with the electric welding face guard, easy dismounting, upward lift the face guard stable in position, can extensively be applicable to the safety protection of engineering electric welding operations such as building, petrochemical industry, electric power, bridge, is a make things convenient for the electric welding face guard of dismouting to be furnished with the safety helmet.

Description

Welding mask with safety helmet and convenient to disassemble and assemble

Technical Field

The utility model relates to a protection device in electric welding construction, in particular to an electric welding mask which is provided with a safety helmet and is convenient to disassemble and assemble.

Background

When welding, welding arc light harmful to human body is generated. The welding arc light can make eyes of human body receive intense radiation, make eyes feel intense burn and burning pain, cause chronic injury to eyes by long-term contact, and cause eyes to suffer from acute keratitis, called electric ophthalmia, which is a special occupational eye disease of electric welders. In order to avoid the harmful radiation generated by the electric arc and the damage of the welding strong light to the eyes, a welding mask is needed to be used for protection during the electric welding construction. The existing welding mask is usually of a hand-held type, a head-wearing type and a cap-matching type. The appearance of the helmet-mounted protective mask solves the problem that the protective mask is inconvenient to wear when a safety helmet is worn. The existing helmet-mounted protective mask is usually connected to the ventilation holes on both sides of the helmet, and if the helmet has no ventilation holes, holes need to be punched on the helmet. The mask needs to be frequently lifted to observe the welding condition during construction, and the mask needs to be stabilized above the head when the mask is not constructed. The existing protective mask with a safety helmet has the following problems: 1. the safety helmet is inconvenient to mount and dismount, and the two sides of some safety helmets are not provided with vent holes, so that holes need to be punched on the two sides of the safety helmet in order to assemble the protective mask, and the safety of the safety helmet can be reduced; the side of the common safety helmet is thin, and the strength of the connection protective mask is not enough. 2. The face guard not only needs reliable and stable with being connected of safety helmet, still needs the convenient face guard that upwards lifts, if articulated when tight between face guard and safety helmet, can take the safety helmet to move together even can make the safety helmet drop when lifting the face guard from top to bottom, articulated when loose between face guard and safety helmet, the face guard of lifting can be unstable, slides down easily, and then influences constructor normal work, reduces work efficiency.

Disclosure of Invention

The utility model aims at overcoming the current face guard of joining in marriage the safety helmet and having the connection reliability not enough, the dismouting is inconvenient, lift the unstable problem of face guard position on, provides a safety helmet and is connected reliably with electric welding face guard, easy dismounting, lift the face guard stable in position's a make things convenient for the technical scheme of the electric welding face guard that is furnished with the safety helmet of dismouting on.

The utility model discloses technical scheme: a welding mask which is convenient to disassemble and assemble and is provided with a safety helmet, the mask is rotatably connected to the safety helmet, and the welding mask is characterized in that a transition connecting piece is detachably connected to the safety helmet, and the mask is rotatably connected to the transition connecting piece; the structure that transition piece detachable connects on the safety helmet do: the left side and the right side of the edge of the safety helmet are provided with slots, a bolt is arranged below the transition connecting piece made of engineering plastics, the bottom end of the bolt is provided with an inverted hook, the bolt is in clearance fit with the slots, and the inverted hook is inversely hung on the lower edge of the inner side of the slots; the rotatable structure of connecting on the transition connecting piece of face guard do: the right side of the transition connecting piece is provided with a fixed end face fluted disc, the center of the fixed end face fluted disc is provided with a bolt hole, the bolt is connected with the bolt hole in a non-rotatable manner, the mask is fixedly connected on a rotatable end face fluted disc sleeve made of engineering plastics, the center hole of the rotatable end face fluted disc sleeve is in clearance fit with the bolt, the end part of the bolt is in threaded connection with an adjusting nut, and the fixed end face fluted disc is meshed with teeth on the rotatable end face fluted disc sleeve.

The bolt and the bolt hole are connected in a non-rotatable manner, and the bolt hole are in a non-rotatable manner: the left end of the bolt hole is provided with a bolt head pit which has the same shape as the bolt head and is in clearance fit with the bolt head, the bolt enters the bolt hole of the transition connecting piece from the left end, and the bolt head is positioned in the bolt head pit.

The teeth on the fixed end face fluted disc and the rotatable end face toothed sleeve are both arc teeth, and the depth of the arc teeth is 0.5-1 mm.

The shapes of the bolt head and the bolt head pit are square or hexagonal.

The bolt of transition connecting piece below is 3 that separate respectively side by side, and the bottom of middle bolt is equipped with the overhead hook.

The key points of the invention of the utility model are that the safety helmet is connected with the face mask through the transition connecting piece, the connecting point of the safety helmet is arranged at the helmet edge, and the helmet edge is thicker and reliable in connection. The utility model is provided with the slot at the brim of the hat, the slot is connected with the bolt clearance fit of the transition connecting piece, the connecting area is larger, the connection is more reliable, the connection of the slot and the bolt of the transition connecting piece is convenient for disassembly and assembly, the bottom end of the bolt is provided with the inverted hook to limit the upward freedom degree of the transition connecting piece, so that the bolt can not be separated from the slot without the action of external force; the transition connecting piece is made of engineering plastics, the inverted hook is pressed, and the inverted hook can conveniently enter or exit the slot by utilizing the elastic deformation of the materials. The utility model discloses a face guard can be convenient lift from top to bottom, can remain stable structure after stopping does: a fixed end face fluted disc is arranged on the right side of the transition connecting piece, a bolt hole is arranged in the center of the fixed end face fluted disc, the left end of the bolt hole is provided with a bolt head pit which has the same shape as the bolt head and is in clearance fit with the bolt head, the bolt head is not rotatable in the bolt hole, so that the bolt is not rotatable in the bolt hole, the mask is fixedly connected on a rotatable end face fluted sleeve, the center hole of the rotatable end face fluted sleeve is in clearance fit with the bolt, the end part of the bolt is in threaded connection with a nut, the fixed end face fluted disc is meshed with teeth on the rotatable end face fluted sleeve made of engineering plastics, when the nut is rotated to a proper position, the fixed end face fluted disc is meshed with the teeth on the rotatable end face fluted sleeve to a proper depth, when the mask is lifted up and down with a slight force, the mask drives the rotatable end face fluted sleeve to rotate around the bolt, the rotating force presses the fixed end face fluted disc to enable the material to generate elastic deformation, the end face teeth of the two gears are disengaged, the rotatable end face tooth sleeve rotates, when the force for lifting the face mask stops, the rotatable end face tooth sleeve is meshed with the teeth of the fixed end face fluted disc, and the position of the upward lifting face mask is stable. In order to facilitate the teeth on the fixed end face fluted disc and the rotatable end face tooth sleeve to be easily disengaged, the utility model discloses the teeth on the fixed end face fluted disc and the rotatable end face tooth sleeve are all designed into arc teeth. The utility model relates to a rationally, the combination is ingenious, and the safety helmet is connected reliably with the electric welding face guard, easy dismounting, upward lift the face guard stable in position, can extensively be applicable to the safety protection of engineering electric welding operations such as building, petrochemical industry, electric power, bridge, is a make things convenient for the electric welding face guard of dismouting to be furnished with the safety helmet.

Drawings

FIG. 1 is a front view of the structure of the present invention

FIG. 2 is a schematic perspective view of the present invention

FIG. 3 is a front view of the safety helmet

FIG. 4 is an enlarged sectional view of the part A-A of the safety helmet of the present invention

FIG. 5 is a front view of the transition piece of the present invention

FIG. 6 is a schematic left side view of the transition piece of the present invention

FIG. 7 is an enlarged partial cross-sectional view of the transition piece barb and safety helmet attachment

FIG. 8 is a schematic cross-sectional view of the structure of the transition piece connected to the helmet and the face mask

In the figure: the safety helmet comprises a safety helmet 1, a transition connecting piece 2, an adjusting nut 3, a face mask 4, a lens 5, a cap edge 6, a slot 7, an inverted hook 8, a bolt 9, a fixed end face fluted disc 10, a bolt hole 11, a bolt 12, a rotatable end face tooth sleeve 13 and a bolt head pit 14.

Detailed Description

The utility model provides a make things convenient for electric welding face guard that is furnished with the safety helmet of dismouting, transition piece 2 detachable connects on safety helmet 1, and face guard 4 rotatable connection is on transition piece.

The structure that transition piece detachable connects on the safety helmet do: the left and right sides at the brim of a hat 6 of safety helmet is equipped with rectangle slot 7, is equipped with bolt 9 below the transition fittings 2 that are made by engineering plastics, for the convenience of pressing bolt 9 and make it produce elastic deformation, design the bolt into 3 that separate respectively side by side, middle bolt length to the inboard lower edge of slot, the lower part is flatter, and the bottom is equipped with inverted hook 8, bolt and slot clearance fit, inverted hook is hung at the inboard lower edge of slot.

Be equipped with lens 5 on face guard 4, the rotatable structure of connecting on transition piece of face guard is: be equipped with fixed end face fluted disc 10 on the transition connector right side, be equipped with bolt hole 11 at fixed end face fluted disc center, bolt 12 and bolt hole nonrotatably be connected, bolt and bolt hole nonrotatably be connected's structure do: the left end of the bolt hole is provided with a bolt head pit 14 which has the same shape as the bolt head and is in clearance fit with the bolt head, the bolt head pit is quadrilateral or hexagonal, the bolt enters the bolt hole of the transition connecting piece from the left end, and the bolt head is positioned in the bolt head pit. The face guard is fixedly connected on a rotatable end face gear sleeve 13 made of engineering plastics, a bolt hole of the rotatable end face gear sleeve is in clearance fit with a bolt, the end part of the bolt is in threaded connection with an adjusting nut 3, and a fixed end face fluted disc 10 is meshed with teeth on the rotatable end face gear sleeve 13. The teeth on the fixed end face fluted disc 10 and the rotatable end face toothed sleeve 13 are both arc teeth, and the depth of the arc teeth is 0.5-1 mm.

The bolt is installed into the bolt hole of the transition connecting piece from the left end, the bolt head sinks into the bolt head pit, the bolt cannot rotate, the rotatable end face teeth of the fixedly connected mask are sleeved on the bolt, the adjustable nut is installed on the bolt, the mask is rotatably connected onto the transition connecting piece, the bolt of the transition connecting piece is pressed inwards, the bolt enters the slot, the inverted hook is inversely hung on the lower edge of the inner side of the slot, and the transition connecting piece is connected onto the safety helmet to complete assembly. When the helmet is used, the pressing force of the adjusting nut on the end face fluted disc is properly controlled, the mask is reliably positioned on the helmet, and the position of the mask is kept unchanged when external force is not applied. If necessary, the mask can be pushed to rotate relative to the safety helmet by only needing slight force in the operation process, and the position of the mask can be adjusted randomly. The mask will be repositioned after the desired position is reached.

Claims

1. A welding mask which is convenient to disassemble and assemble and is provided with a safety helmet is rotationally connected to the safety helmet and is characterized in that a transition connecting piece (2) is detachably connected to the safety helmet (1), and a mask (4) is rotationally connected to the transition connecting piece; the structure that transition piece detachable connects on the safety helmet do: slots (7) are arranged on the left side and the right side of a cap edge (6) of the safety cap, a plug pin (9) is arranged below a transition connecting piece (2) made of engineering plastics, an inverted hook (8) is arranged at the bottom end of the plug pin, the plug pin is in clearance fit with the slots, and the inverted hook is inverted on the lower edge of the inner side of the slots; the rotatable structure of connecting on the transition connecting piece of face guard do: the right side of the transition connecting piece is provided with a fixed end face fluted disc (10), the center of the fixed end face fluted disc is provided with a bolt hole (11), the bolt is non-rotatably connected with the bolt hole, the mask is fixedly connected on a rotatable end face toothed sleeve (13) made of engineering plastics, the center hole of the rotatable end face toothed sleeve is in clearance fit with the bolt (12), the end part of the bolt is in threaded connection with an adjusting nut (3), and the fixed end face fluted disc (10) is meshed with teeth on the rotatable end face toothed sleeve (13).

2. The helmet-equipped electric welding mask of claim 1, wherein the bolt (12) is non-rotatably connected to the bolt hole by: the left end of the bolt hole is provided with a bolt head pit (14) which has the same shape as the bolt head and is in clearance fit with the bolt head, the bolt enters the bolt hole of the transition connecting piece from the left end, and the bolt head is positioned in the bolt head pit.

3. The helmet-equipped electric welding mask of claim 1, wherein the teeth on the fixed end face fluted disc (10) and the rotatable end face fluted disc (13) are circular arc teeth, and the depth of the circular arc teeth is 0.5-1 mm.

4. The helmet-equipped electric welding mask of claim 1, wherein the bolt head and the bolt head recess (14) are square or hexagonal in shape.

5. The helmet-equipped electric welding mask of claim 1, wherein the number of the pins (9) below the transition piece is 3, which are separated side by side, and the bottom end of the middle pin is provided with an inverted hook (8).