CN209713370U - A kind of welding mask - Google Patents

Abstract

The utility model discloses a kind of welding masks, including mask body；The top of mask body, which is equipped with, tilts upward extension and opening semiclosed cavity outwardly, to form air intake passage；The first filter being arranged close to the air inlet of air intake passage；Air intake passage is equipped with drawing fan close to the internal channel wall of face；It is fitted in the middle part of mask body immediately ahead of face to form main channel；It is surrounded on nasal cavity periphery, the second filter to secondary filter air；Scavenger fan set on the bottom of mask body.The welding mask is made of an air circulation path being connected from top to bottom, uniquely determining air intake passage, drawing fan, main channel and scavenger fan, first filter will introduce in mask after outside air primary filtration, it can reduce the particle concentration entered in mask, only a few is present in the outer peripheral surface for being attached to the second filter stable under the path of the particulate matter in mask, will not the disperse everywhere in mask due to air circulation direction change.

Description

A kind of welding mask

Technical field

The utility model relates to field of machining more particularly to a kind of welding masks.

Background technique

The harmful lights such as infrared ray and ultraviolet light can be generated in the welding process, while can also be generated largely comprising heavy metal The poisonous and harmful substance of grain, conventional welding mask can only completely cut off injury of the harmful light to human body in the market, but can not effectively hinder Every sucking of the human body for heavy metal, the health of long-term work damage people.In addition, welder constantly exhales from mouth, nose Hot gas out will lead to inside weldering helmet, and especially window surface generates fog, influence to operate visual direction；Mask can be also reduced simultaneously Internal oxygen concentration easily causes and perspires, tired symptom of waiting for a long time.

In view of the above-mentioned problems, it is real specifically to please refer to Publication No. CN103027787B now with a kind of cooling welding helmet With new patent, which is respectively arranged with Air Blast fan 13 and row close to the position at the position of forehead and close mouth and nose in mask Air fan 25, to force to suck extraneous fresh air and force the foul atmosphere in discharge mask.Due to that can be generated when welding The workplace of a large amount of particulate matter, welder is filled by this particulate matter, the fresh sky sucked by Air Blast fan 13 Gas inevitably carries the particulate matter of various concentration, although these particulate matters can be by filter 24 at mouth and nose The particulate matter for being filtered, but being come into mask will be deposited on window in addition to being collected at 24 surface of filter, from And visibility when operator's work is reduced, it even constantly diffused in mask, be difficult to exclude, and then bring eye illness hidden danger.

In conclusion further increasing the visibility of mask in use, becomes those skilled in the art and urgently solve Certainly the problem of.

Utility model content

The purpose of the utility model is to provide a kind of welding mask, can be avoided the particulate matter that is diffused in welding surroundings into Enter and block the visual field in mask, to improve the visibility of mask in use.

To achieve the above object, the utility model provides a kind of welding mask, including that can fit in the fixed face of face Cover main body；The top of the mask body, which is equipped with, tilts upward extension and the semiclosed cavity of opening outwardly, logical to form air inlet Road；

The first filter being arranged close to the air inlet of the air intake passage；

The air intake passage is equipped with close to the internal channel wall of face extraneous air to be introduced to the air-breathing wind in mask Fan；

It is fitted in the middle part of the mask body immediately ahead of face, to form the main channel that guidance air circulates downwards；

It is surrounded on nasal cavity periphery, flows through the second filter of the air of the main channel to secondary filter；

Bottom set on the mask body, the scavenger fan to discharge the air from the main channel.

Preferably, the air intake passage is in the ramped shaped shunk diagonally downward along its open end.

Preferably, it is uniformly provided with and multiple to enter to stablize from the air inlet in the vias inner walls of the air intake passage Air-flow, the lug boss to guarantee air inlet uniformity.

It preferably, further include the air inlet water conservancy diversion conduit being arranged in parallel on the inside of the air intake passage, the air inlet diversion trench If on the inner wall in road there is arterial highway to extend along conduit direction, to the strip projected parts of steady air flow.

Preferably, further include connect with the drawing fan and the scavenger fan, to control the drawing fan and The inductive switch knob of the revolving speed of the scavenger fan.

It preferably, further include the outside for being fixed on the scavenger fan, with to avoid being welded with harmful substance from the exhaust Fan enters the air outlet guard board in mask；

In lattice-shaped, the wind direction guiding subassembly to adjust air outflow angle, the wind direction guiding subassembly is fixed on institute It states the bottom of air outlet guard board and is tilted towards mouth and nose, is covered in outside the scavenger fan to be collectively formed with the air outlet guard board The mouth and nose guard plot of side.

Preferably, the wind direction guiding subassembly specifically includes:

The moving vane of multiple tilt adjustables, the two neighboring moving vane is parallel, is referred to being formed to press for air Determine the water conservancy diversion conduit of angle outflow；

It is connect with all moving vanes, the wind direction diversion trench to adjust all tilt angles of the moving vane Knob.

It preferably, further include being connected with the drawing fan and the scavenger fan, to when mask and face contact Control the auto-induction apparatus that the drawing fan and the scavenger fan automatically turn on.

Preferably, further include at least one be fixed on the outside of the mask body and with the auto-induction apparatus phase LED light even.

It preferably, further include being connected with the LED light, manually controlling to change the switch of its working condition.

Relative to above-mentioned background technique, welding mask provided by the utility model is logical by air intake passage, drawing fan, master Road and scavenger fan constitute one along the air circulation path that mask body is connected from top to bottom, and drawing fan will be in air intake passage Forcing ambient air sucking mask in, air is able to be sucked by human body at mouth and nose, so be metabolized after by foul atmosphere by giving Wind fan forces discharge.In order to avoid the particulate matter carried in human body sucking outside air, in main channel at mouth and nose Equipped with the second filter, the particulate matter for further preventing outside air to carry is accumulated in mask, and especially window is interior Side is additionally provided with first filter in the air inlet of air intake passage.First filter will introduce face after outside air primary filtration In cover, the particulate matter that can not be adhered to the second filter is avoided to diffuse in mask, influences the visual field and even cause eye disorders.

In addition, the welding mask is when in use, since air circulation path is unique, determining, existing pole in mask A small number of particulate matters can be stable under the action of the air circulation path the outer peripheral surface for being attached to the second filter, will not The disperse everywhere in mask due to air circulation direction change.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.

Fig. 1 is a kind of structural schematic diagram of existing cooling welding helmet；

Fig. 2 is the right view of Fig. 1；

Fig. 3 is the structural schematic diagram of welding mask provided by the utility model embodiment；

Fig. 4 is the front view of Fig. 3.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In order to make those skilled in the art more fully understand the utility model, with reference to the accompanying drawing and specifically The utility model is described in further detail for embodiment.

Fig. 3 and Fig. 4 are please referred to, Fig. 3 is the structural schematic diagram of welding mask provided by the utility model embodiment；Fig. 4 For the front view of Fig. 3.

Welding mask provided by the utility model, including the fixed mask body 1 of face can be fitted in；Mask body 1 top, which is equipped with, tilts upward extension and opening semiclosed cavity outwardly, to form air intake passage 11；Close to air intake passage 11 Air inlet setting first filter 2；Air intake passage 11 is equipped with close to the internal channel wall 111 of face to realize the external world Air introduces the drawing fan 3 in mask from air inlet；The middle part of mask body 1 fits in immediately ahead of face, to form guidance The main channel 13 that air circulates downwards；Be surrounded on nasal cavity periphery, flowed through to secondary filter main channel 13 air the second mistake Filter；The scavenger fan 4 that bottom set on mask body 1, the air to autonomous channel in future 13 discharge.

In order to which drawing fan 3 is fixed on air intake passage 11 on the internal channel wall 111 of face, and make drawing fan 3 Can force air-breathing into mask, the shaft of drawing fan 3 perpendicular to internal channel wall 111 wall surface and run through the wall surface, change speech It, can be equipped with the first through hole coincideing with 3 size of drawing fan on internal channel wall 111 of the air intake passage 11 close to face, will The surrounding of drawing fan 3 is fixed along the inner wall of first through hole, is embedded in drawing fan 3 in internal channel wall 111.When drawing fan 3 Under the action of power device in rotation, the air in air intake passage 11 can be introduced in mask from the gap of its blade.Together Reason leads to the surrounding of scavenger fan 4 along second in settable the second through-hole coincideing with 4 size of scavenger fan in the bottom of mask The inner wall in hole is fixed, and scavenger fan 4 is made to be embedded in the bottom of mask, so that the foul atmosphere for being metabolized out at mouth and nose be forced to be discharged Outside mask.

First filter 2 is different from the second filter at mouth and nose, it is not necessary to consider the construction of human organ and face contour, And realize that the difficulty of the necessary first filter 2 of air is also far smaller than the difficulty of necessary second filter of air, for example, In order to guarantee that the air into drawing fan 3 centainly first passes through the filtering of first filter 2 in advance, as long as first filter 2 is complete Whole is coated in first through hole or in air inlet, that is to say, that and circular filter screen can be used in first filter 2, And filter effect can also be adjusted according to the number of plies and mesh diameter of filter screen；And to guarantee certain into the air of mouth and nose By the filtering of the second filter, then need to guarantee that the second filter can coat main channel 13 completely and the whole of mouth and nose chamber connects Contacting surface, it is contemplated that there are nuances for the organ construction of different people, in order to ensure the filter effect of the second filter, then certainly will drop The comfort and practicability of low second filter in use.First filter 2 is set to the outside of drawing fan 3 not Only can primary filtration enter the air in mask, and easy disassembly and replacement, moreover it is possible to auxiliary adjustment enter the wind the uniformity.

Welding mask provided by the utility model is by air intake passage 11, drawing fan 3, main channel 13 and scavenger fan 4 An air circulation path being connected from top to bottom along mask body 1, uniquely determining is constituted, in main channel 13 at close mouth and nose Equipped with the second filter, air inlet is equipped with first filter 2.First filter 2 will introduce face after outside air primary filtration In cover, the concentration into the particulate matter in mask can reduce, simultaneously as air circulation path is unique, only a few is present in Particulate matter in mask can be stable under the path the outer peripheral surface for being attached to the second filter, will not be because of air circulation side The disperse everywhere in mask to variation influences the visual field and even causes eye disorders.

With reference to the accompanying drawing and embodiment, further description is done to welding mask provided by the utility model.

In a specific embodiment, air intake passage 11 is in the ramped shaped shunk diagonally downward along its open end, also It is to say, the channel cross-section of the air inlet of air intake passage 11 is greater than the channel cross-section of 11 bottom of air intake passage, and works as mask When being worn on the head of welder, the headward rear of air inlet.Since the particulate matter generated in welding is in sky Be unevenly distributed in gas, under normal circumstances, face front pair region in particulate matter contained in air concentration it is larger, head The concentration of particulate matter contained by the air at portion rear is relatively low, and the headward rear of the air inlet of air intake passage 11 is set It sets, can reduce the pressure of first filter 2.

Multiple air entered to stabilization from air inlet can be uniformly provided with, in the vias inner walls of air intake passage 11 to protect Demonstrate,prove the lug boss 112 of air inlet uniformity.Lug boss 112 can not only buffer the air that sucking is forced by drawing fan 3, reduce air Acceleration to stablize its flowing velocity, moreover it is possible to improve the unstable situation of circulating direction.

In order to further increase the stationarity of air circulation, it is additionally provided on the inside of air intake passage 11 and is parallel to air intake passage 11 air inlet water conservancy diversion conduit 12, that is, air inlet water conservancy diversion conduit 12 is parallel to the logical of air intake passage 11 for the channeling direction of air Road extending direction, if the inner wall due to air inlet water conservancy diversion conduit 12 extends equipped with arterial highway along conduit direction, to stable air stream The strip projected parts in logical direction, when air touches these strip projected parts, guidance of the gas molecule in adjacent two strip projected parts The lower direction of motion for changing itself, to be entered in the end of air inlet water conservancy diversion conduit 12 with the unified direction of motion and movement velocity In main channel 13, avoid wind speed suddenly big or suddenly small.During this, rationally inclination of the setting air inlet water conservancy diversion conduit 12 relative to face Degree can also make by the air of main channel 13 to improve the air inlet uniformity and air inlet by face front with optimum wind direction Stability, to improve the comfort level of mask.

Not in view of different operating space, even demand of the Various Seasonal to the air quantity of drawing fan 3 and scavenger fan 4 Together, for example, in the region of working environment relative narrowness or in the season of sweltering heat, the revolving speed of drawing fan 3 and scavenger fan 4 compared with Gao Shi can provide biggish air quantity into mask, on the one hand improve oxygen-supplying amount, on the other hand be capable of increasing heat-sinking capability.Instead It then can moderately reduce the revolving speed of drawing fan 3 and scavenger fan 4 in working environment relatively spacious or cold season, To reduce air quantity.

For this purpose, on the basis of the above embodiments, the welding mask further include connect with drawing fan 3 and scavenger fan 4, To control the inductive switch knob 6 of the revolving speed of drawing fan 3 and scavenger fan 4.Under normal conditions, drawing fan 3 and exhaust The revolving speed of fan 4 is corresponding, or even is consistent, thus can adjust 3 He of drawing fan by an inductive switch knob 6 is unified The revolving speed of scavenger fan 4, certainly, if it is considered that the flow condition of air of the human body in air-breathing and expiration in mask is in the presence of poor It is different, in order to which to offset this air stream moment as far as possible different for the speed difference by drawing fan 3 and scavenger fan 4, may also set up Two inductive switch knobs 6 are to realize the separately adjustable of drawing fan 3 and scavenger fan 4.By adjusting drawing fan 3 and exhaust The revolving speed of fan 4 can guarantee inner air and outer air positive/negative-pressure according to the ratio of facial comfort level Reasonable Regulation And Control intake and air output Difference, forms the different inner air and outer air convection current for being suitable for different users, effectively controls facial air and is in temperature constant state, provides easypro Suitable environment.

It based on any of the above embodiments, further include the outside for being fixed on scavenger fan 4, with to avoid being welded with evil Substance is led from the air outlet guard board 51 in the entrance mask of scavenger fan 4 and in lattice-shaped, to adjust the wind direction of air outflow angle Flow component；Wherein, wind direction guiding subassembly be fixed on air outlet guard board 51 bottom and towards mouth and nose tilt, so as to air outlet guard board 51 The mouth and nose guard plot for being covered in 4 outside of scavenger fan is collectively formed.

Since air outlet guard board 51 is located at the outside of scavenger fan 4, wind direction guiding subassembly is fixed on the lower section of air outlet guard board 51 And slightly tilted relative to air outlet guard board 51, thus air outlet guard board 51, wind direction guiding subassembly and 4 three of scavenger fan constitute and cut Face is the mouth and nose guard plot of triangle, and mask body 1 realizes mouth and nose in the left and right sides perpendicular to cross-wise direction respectively and prevents Protect the closing in area.

It, can only be along the direction that wind direction guiding subassembly is constrained by the air that scavenger fan semi-finals system is discharged under aforementioned setting It is discharged from mask, it at the same time can also using the air of discharge by adjusting the i.e. adjustable air draft direction of wind direction guiding subassembly The direction of the smoke particle towards the separate human body that generate in front of face by welding is dispelled.Wind direction guiding subassembly specifically may include multiple It the moving vane 521 of tilt adjustable and is connect with whole show blade 521, to adjust inclining for whole show blade 521 The wind direction diversion trench knob 522 of rake angle；Wherein, two neighboring moving vane 521 is parallel, presses specified angle for air to be formed The water conservancy diversion conduit of outflow.Rotary wind makes two adjacent moving vanes 521 inclining with respect to the horizontal plane to diversion trench knob 522 Oblique degree increases simultaneously, then the outlet end position of water conservancy diversion conduit reduces, and air is discharged from below face；Reversely rotate wind direction water conservancy diversion Slot knob 522 makes two adjacent moving vanes 521 inclined degree with respect to the horizontal plane while reducing, then water conservancy diversion conduit Outlet end position is raised, and air is discharged from face obliquely downward.

In view of welder dresses thick and heavy gloves at work, operation mask switch is before wearing mask every time to connect Circuit that is logical or disconnecting entire mask is obviously made troubles to operation, for this purpose, the welding mask further include with drawing fan 3 and The innervation certainly that scavenger fan 4 is connected, automatically turns on to the control drawing fan 3 when mask is contacted with face and scavenger fan 4 Answer device.After the welding mask is worn on head by band or head hoop 8 by welder, auto-induction apparatus can lead to The circuit connection that induction body state automatically controls mask is crossed, to automatically open drawing fan 3 and scavenger fan 4；Equally, when For the welding mask by after unloading, the automatic circuit for disconnecting mask is closed drawing fan 3 and scavenger fan 4 by auto-induction apparatus. Obviously, if necessary to adjustment drawing fan 3 and/or the revolving speed of scavenger fan 4, then it can pass through sense before wearing gloves and mask Inductive switch knob 6 pre-adjusts the gear of drawing fan 3 and/or scavenger fan 4, and the mask for being then switched on circuit will be according to default Wind speed carry out air-supply and air draft.

For the working environment of some insufficient lights, which is additionally provided at least one and is fixed on mask body 1 Outside and the LED light 71 being connected with auto-induction apparatus.The LED light 71 is predominantly located at the outside of the mask near forehead, and By the control of auto-induction apparatus, in other words, when auto-induction apparatus connects the circuit of mask, LED light 71 also connects simultaneously Logical, when auto-induction apparatus disconnects the circuit of mask, LED light 71 disconnects therewith.

The quantity and light intensity of LED light 71 can be arranged as the case may be, that is to say, that the quantity of LED light 71 can It can also be classified adjusting with the light of more than one even LED light 71.

In view of part workplace be not necessarily to supplementary light, the welding mask further comprise be connected with LED light 71, hand Dynamic to control to change the switch 72 of its working condition, switch 72 can be realized the on-off for manually controlling LED light 71, not need volume LED light 71 can be turned off manually in the case where outer supplementary light.

Welding mask provided by the utility model is described in detail above.Specific case pair used herein The principles of the present invention and embodiment are expounded, and the above embodiments are only used to help understand, and this is practical new The method and its core concept of type.It is practical not departing from it should be pointed out that for those skilled in the art Under the premise of new principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this In the protection scope of utility model claims.

Claims (10)

1. a kind of welding mask characterized by comprising

The fixed mask body (1) of face can be fitted in；The top of the mask body (1), which is equipped with, to be tilted upward extension and opens The semiclosed cavity of mouth outwardly, to form air intake passage (11)；

The first filter (2) being arranged close to the air inlet of the air intake passage (11)；

The air intake passage (11) is equipped with close to the internal channel wall (111) of face extraneous air to be introduced to the suction in mask Air fan (3)；

It is fitted in the middle part of the mask body (1) immediately ahead of face to form the main channel (13) that guidance air circulates downwards；

Be surrounded on nasal cavity periphery, flowed through to secondary filter the main channel (13) air the second filter；

Bottom set on the mask body (1), the exhaust wind to discharge the air for coming from the main channel (13) It fans (4).

2. welding mask according to claim 1, which is characterized in that the air intake passage (11) is in tilt along its open end The ramped shaped of retracted downward.

3. welding mask according to claim 2, which is characterized in that in the vias inner walls of the air intake passage (11) uniformly Equipped with multiple to stablize the air-flow, the lug boss (112) to guarantee air inlet uniformity that enter from the air inlet.

4. welding mask according to claim 3, which is characterized in that further include being arranged in parallel in the air intake passage (11) The air inlet water conservancy diversion conduit (12) of inside, it is described air inlet water conservancy diversion conduit (12) if inner wall on have arterial highway along conduit direction extend, Strip projected parts to steady air flow.

5. welding mask according to claim 4, which is characterized in that further include and the drawing fan (3) and the row Air fan (4) connection, revolving speed to control the drawing fan (3) and the scavenger fan (4) inductive switch knob (6)。

6. welding mask according to any one of claims 1 to 5, which is characterized in that further include being fixed on the exhaust wind Fan (4) outside, with to avoid be welded with harmful substance from the scavenger fan (4) enter mask in air outlet guard board (51)；

In lattice-shaped, the wind direction guiding subassembly to adjust air outflow angle, the wind direction guiding subassembly be fixed on it is described go out The bottom of windshield plate (51) and towards mouth and nose tilt, be covered in the exhaust wind to be collectively formed with the air outlet guard board (51) Fan the mouth and nose guard plot on the outside of (4).

7. welding mask according to claim 6, which is characterized in that the wind direction guiding subassembly specifically includes:

The moving vane (521) of multiple tilt adjustables, the two neighboring moving vane (521) is in parallel, with formation for sky Gas presses the water conservancy diversion conduit of specified angle outflow；

It is connect with all moving vanes (521), the wind direction to adjust all tilt angles of the moving vane (521) Diversion trench knob (522).

8. welding mask according to claim 7, which is characterized in that further include and the drawing fan (3) and the row Air fan (4) is connected, to control the drawing fan (3) and the scavenger fan (4) when mask and face contact automatically The auto-induction apparatus of unlatching.

9. welding mask according to claim 8, which is characterized in that further include that at least one is fixed on the mask body (1) outside and the LED light (71) being connected with the auto-induction apparatus.

10. welding mask according to claim 9, which is characterized in that further include being connected with the LED light (71), manually It controls to change the switch (72) of its working condition.