阅读说明：本技术 一种消防自救呼吸器 (Fire control self-rescue respirator ) 是由 潘玉娇 陈康 于 2020-07-11 设计创作，主要内容包括：本发明属于消防设备技术领域,具体的说是一种消防自救呼吸器,包括防火头盔与过滤罐；所述防火头盔外壁上设有眼窗,所述眼窗的外表面粘贴有一组透明薄膜,所述眼窗一侧的防火头盔上安装有支撑板,所述支撑板的上下两端对称连接有滑杆,所述滑杆上滑动连接有滑块,所述滑块与支撑板之间的滑杆上套设有弹簧,所述滑块侧面上设有一号魔术贴,所述透明薄膜端部分别连接有二号魔术贴；本发明通过设置的透明薄膜与滑动机构,使得呼吸器的佩戴者能够通过滑动机构带动堆积了灰尘的透明薄膜从眼窗上去除,大大提高了佩戴者的视野清晰度,同时透明薄膜在去除时方便快捷,从而有效的提高了消防自救呼吸器在使用时的有效性与快捷性。(The invention belongs to the technical field of fire-fighting equipment, and particularly relates to a fire-fighting self-rescue respirator, which comprises a fire-fighting helmet and a filter tank, wherein the fire-fighting self-rescue respirator comprises a fire-fighting helmet and a filter tank; the fireproof helmet is characterized in that an eye window is arranged on the outer wall of the fireproof helmet, a group of transparent films are pasted on the outer surface of the eye window, a supporting plate is mounted on the fireproof helmet on one side of the eye window, slide rods are symmetrically connected to the upper end and the lower end of the supporting plate, slide blocks are connected to the slide rods in a sliding mode, springs are sleeved on the slide rods between the slide blocks and the supporting plate, a first magic tape is arranged on the side face of each slide block, and the end portions of the transparent films are respectively connected with a; according to the invention, through the arrangement of the transparent film and the sliding mechanism, a wearer of the respirator can drive the transparent film accumulated with dust to be removed from the eye window through the sliding mechanism, so that the visual field definition of the wearer is greatly improved, and meanwhile, the transparent film is convenient and quick to remove, thereby effectively improving the effectiveness and the rapidness of the fire-fighting self-rescue respirator in use.)

1. A fire-fighting self-rescue respirator comprises a fire-fighting helmet (1) and a filter tank (2) arranged on the outer wall of the fire-fighting helmet; the method is characterized in that: the fireproof helmet is characterized in that a transparent eye window (3) is arranged on the outer wall of the fireproof helmet (1) on the top end of the filter tank (2), a group of transparent films (31) are pasted on the outer surface of the eye window (3), a support plate (4) is installed on the outer wall of the fireproof helmet (1) on one side of the eye window (3), slide rods (41) are symmetrically connected to the upper end and the lower end of the support plate (4), sliders (42) are connected to the slide rods (41) in a sliding mode, springs (43) are sleeved on the slide rods (41) between the sliders (42) and the support plate (4), a magic tape (44) is arranged on the side face, far away from the support plate (4), of each transparent film (31) is connected with a magic tape (5) in an L shape, the magic tape (5) is sleeved on the side face of each slide rod (41) and can slide on the surface of each slide, the side surface of the second magic tape (5) close to the first magic tape (44) is set to be a bonding surface capable of being bonded with the second magic tape, and the other side surface of the second magic tape (5) opposite to the bonding surface is set to be a smooth surface.

2. A fire fighting self-rescue respirator according to claim 1, characterized in that: inside and outside both sides face of No. two magic subsides (5) all sets up the adhesive surface that can bond each other, and adjacent two be provided with gapped (51) between the side of No. two magic subsides (5), adjacent two simultaneously the symmetry is provided with a set of isolation groove on the side that No. two magic subsides (5) are close to each other, and equal movable packing has spacing block (52) between the two isolation grooves of symmetry, be equipped with fixed block (6) that rubber materials made on the fire helmet (1) side of backup pad (4) one side, fixed block (6) can be fixed slider (42) position.

3. A fire fighting self-rescue respirator according to claim 2, characterized in that: the shape of the isolation groove is arc-shaped, and the isolation block (52) is arranged to be cylindrical and matched with the arc-shaped groove.

4. A fire fighting self-rescue respirator according to claim 1, characterized in that: be provided with spout (45) along its axial direction on slide bar (41) side, be provided with on the side that slide bar (41) are close to No. two magic subsides (5) with perpendicular intercommunication's of spout (45) locking groove (46), slider (42) inside is provided with latch segment (47), latch segment (47) are located inside and can be blocked with locking groove (46) mutually of spout (45).

5. A fire fighting self-rescue respirator according to claim 4, characterized in that: the two ends of the sliding block (42) are respectively connected with a traction rope (7), and the free end of the traction rope (7) is positioned at the bottom end of the fireproof helmet (1).

6. A fire fighting self-rescue respirator according to claim 1, characterized in that: the transparent films (31) are polyester films, and the transparent films (31) are bonded with each other through 502 glue.

Technical Field

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a fire fighting self-rescue respirator.

Background

The self-rescue respirator for fire fighting is also called an air respirator and a fire-fighting air respirator, is a self-sufficient open air respirator, is widely applied to departments of fire fighting, chemical engineering, ships, petroleum, smelting, warehouses, laboratories, mines and the like, and is used for fire fighters or rescue personnel to safely and effectively extinguish fire, rescue and rescue work in various environments such as dense smoke, toxic gas, steam or oxygen deficiency. The prior fire-fighting self-rescue respirator has the following problems: when a fire is extinguished, a fire-fighting self-rescue respirator needs to be worn for a long time by a fireman or emergency rescue personnel, and particularly after water is adhered to the eye window, a large amount of dust and ash floating in the air when a fire burns can be accumulated on the eye window, so that the fire-fighting sight of the fireman or emergency rescue personnel is shielded, and the fire-fighting and disaster-fighting work is influenced.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the fire-fighting self-rescue respirator, through the arrangement of the transparent film and the sliding mechanism, a wearer of the respirator can drive the transparent film accumulated with dust to be removed from the eye window through the sliding mechanism, the visual field definition of the wearer is greatly improved, and meanwhile, the transparent film is convenient and quick to remove, so that the effectiveness and the quickness of the fire-fighting self-rescue respirator in use are effectively improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a fire-fighting self-rescue respirator comprises a fire-fighting helmet and a filter tank arranged on the outer wall of the fire-fighting helmet; the fire-fighting helmet is characterized in that a transparent eye window is arranged on the outer wall of the fire-fighting helmet at the top end of the filtering tank, a group of transparent films are pasted on the outer surface of the eye window, a supporting plate is mounted on the outer wall of the fire-fighting helmet on one side of the eye window, sliding rods are symmetrically connected to the upper end and the lower end of the supporting plate, sliding blocks are connected to the sliding rods in a sliding mode, springs are sleeved on the sliding rods between the sliding blocks and the supporting plate, a first magic tape is arranged on the side face, away from the supporting plate, of each sliding block, the end portion, away from the supporting plate, of each transparent film is connected with a second L-shaped magic tape respectively, the second magic tape is sleeved on the side face of each sliding rod and can slide on the surface of each sliding rod, the side face, close to the first magic; when the fire-fighting self-rescue respirator works, a fire-fighting self-rescue respirator needs to be worn for a long time when a fire fighter or a rescue and rescue worker extinguishes the fire, and particularly after the eye window is stuck with water, a large amount of dust and impurities can be accumulated on the eye window, so that the fire-fighting sight of the fire fighter or the rescue and rescue worker is shielded, and the fire-fighting and rescue work is influenced; some respirators in the prior art can remove dust and impurities on the eyeholes by arranging the water spraying and scraping mechanism, but the respirator loaded with a certain amount of water increases the weight of the respirator, so that the workload of a user is increased invisibly, the amount of water in the respirator is limited, the effect of continuously cleaning the eyeholes cannot be achieved, meanwhile, the visual field of a wearer can be influenced by water flow and the water scraping plate when the respirator is used, the cleaning effect on the surfaces of the eyeholes is not good, and the using effect of the respirator is reduced; when the respirator is used, a group of transparent films are attached to the outer surface of the eye window, so that dust and impurities in a fire scene can be accumulated on the outermost transparent film of the eye window, the sliding block in an initial state is positioned on one side of the second magic tape under the action of the spring, the first magic tape on the sliding block is adhered to the adhering surface of the second magic tape on the outermost transparent film, when a certain amount of dust and impurities on the outermost transparent film are accumulated and influence the visual field of a wearer, the sliding block is pushed to move towards one side of the supporting plate on the sliding rod, so that the moving sliding block can drive the two magic tapes adhered to move synchronously, the first magic tape on the outermost transparent film can be uncovered from the surface of the inner transparent film when moving, and a user can conveniently remove the uncovered transparent film from the eye window, the transparent film exposed on the outermost side of the eye window can greatly improve the visual field definition of a wearer and improve the safety of the wearer; when the user does not apply acting force to the sliding block any more, the sliding block is reset under the elastic force of the spring, so that the magic tape I on the sliding block is bonded with the magic tape II on the latest transparent film, and the transparent film can be recycled; one side between two adjacent second magic tapes is set to be a smooth surface, and the two parts are not bonded, so that the second magic tapes cannot influence the adjacent second magic tapes when being torn off, and the stability of the respirator in use is greatly improved; meanwhile, the transparent film is driven to be removed from the eye window by pushing the sliding block, so that the operation is simple and easy, the efficiency is high, and the effectiveness and the rapidness of the fire-fighting self-rescue respirator in use are effectively improved.

Preferably, the inner side surface and the outer side surface of each second magic tape are both provided with bonding surfaces capable of being bonded with each other, a gap is formed between the side surfaces of two adjacent second magic tapes, a group of isolation grooves are symmetrically formed in the side surfaces, close to each other, of the two adjacent second magic tapes, isolation blocks are movably filled between the two isolation grooves, a fixed block made of rubber materials is arranged on the side surface of the fireproof helmet on one side of the supporting plate, and the fixed block can fix the position of the sliding block; when the anti-theft helmet works, although the outermost transparent film can be uncovered by the sliding block, the uncovered transparent film still needs to be torn off manually, so that the convenience of a wearer in use is affected; and the spacing block that sets up can separate adjacent No. two magic tapes each other, prevent that two magic tapes from laminating and bonding each other and influencing normal use, when the slider drives No. two magic tapes of the innermost simultaneously and moves, this No. two magic tapes take place to break away from with adjacent No. two magic tapes this moment, spacing block between the two drops because of no longer receiving to shelter from, it is bonded with adjacent No. two magic tapes when convenient follow-up slider drives No. two magic tapes of end fixing and resets to make No. two magic tapes can last and stable work.

Preferably, the isolation groove is arc-shaped, and the isolation block is arranged into a cylinder shape matched with the arc-shaped groove; the during operation, in order to make the spacer block can be more convenient drop when breaking away from adjacent No. two magic subsides, through setting up the shape of isolation groove and spacer block this moment, when making the spacer block can paste the smooth isolation to adjacent No. two magic, also can make No. two magic subsides when keeping away from each other, cylindric spacer block can more easily convenient break away from and drop from the isolation inslot portion to the effectual stability and the validity of respirator when using have been improved.

Preferably, a sliding groove is formed in the side face of the sliding rod along the axial direction of the sliding rod, a locking groove which is vertically communicated with the sliding groove is formed in the side face of the sliding rod, which is close to the second magic tape, a locking block is arranged in the sliding block, and the locking block is located in the sliding groove and can be clamped with the locking groove; the during operation, in order to increase the stability of slider when unoperated state, through setting up the latch segment on the slider this moment, when the respirator no longer wears and uses, this moment through rotating the slider and make the latch segment can rotate to the locking inslot portion in step, the latch segment of mutual block can carry on spacingly to slider along the ascending motion of slide bar axial this moment with the locking groove, reduce the condition that the slider took place unexpected slip and drive the transparent film and reveal under the effect of external force, the stability of slider when unoperated state has been improved, and the spout that sets up can make the slider drive the latch segment to slide in step in the spout when the motion, not only make the smooth going on work of slider, can also play spacing effect to the slider of motion, greatly increased the slider at the stability of during operation.

Preferably, two ends of the sliding block are respectively connected with a traction rope, and the free end of the traction rope is positioned at the bottom end of the fireproof helmet; the during operation, in order to make the transparent film on the eyewindow take off more convenient and fast, through setting up the haulage rope respectively at the slider both ends this moment, when needs take off from the eyewindow through the slider drive transparent film, only need this moment drive the slider motion through the haulage rope that the pulling is close to backup pad one side can, when the slider needs to reset simultaneously, this moment through the pulling be close to No. two magic paste one side the haulage rope can to the convenience and the practicality of respirator when using have been improved greatly.

Preferably, the transparent films are polyester films, and the transparent films are adhered to each other through 502 glue; in operation, because polyester film has better mechanical properties and high temperature resistance than general plastic film, make transparent film still have good result of use at the fire scene of high temperature, and because glue through 502 between the transparent film bonds each other, and 502 glues and have more firm adhesive force than general glue under normal atmospheric temperature state, the transparent film that reduces the laminating takes place to break away from or the circumstances such as stick up the limit, and 502 glues and loses efficacy easily under the high temperature state, make the transparent film that 502 glued to carry out more easily effectual the tearing off because of the glue inefficacy when the high temperature state, thereby the effectual stability that improves transparent film when using.

The invention has the following beneficial effects:

1. according to the invention, through the arrangement of the transparent film and the sliding mechanism, a wearer of the respirator can drive the transparent film accumulated with dust to be removed from the eye window through the sliding mechanism, so that the visual field definition of the wearer is greatly improved, and meanwhile, the transparent film is convenient and quick to remove, thereby effectively improving the effectiveness and the rapidness of the fire-fighting self-rescue respirator in use.

2. According to the invention, the transparent films are made of the materials and bonded with each other through the 502 glue, so that the transparent films still have excellent use effect in a high-temperature fire scene, and meanwhile, the 502 glue bonded transparent films can be easily and effectively removed due to glue failure in a high-temperature state, so that the stability of the transparent films in use is improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is an enlarged view at B in FIG. 3;

in the figure: the fire-proof helmet comprises a fire-proof helmet 1, a filter tank 2, an eye window 3, a transparent film 31, a supporting plate 4, a sliding rod 41, a sliding block 42, a spring 43, a first magic tape 44, a sliding groove 45, a locking groove 46, a locking block 47, a second magic tape 5, a gap 51, a spacing block 52, a fixing block 6 and a traction rope 7.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1-4, the fire-fighting self-rescue respirator comprises a fire-fighting helmet 1 and a filter tank 2 arranged on the outer wall of the fire-fighting helmet; the outer wall of the fire-proof helmet 1 at the top end of the filter tank 2 is provided with a transparent eyehole 3, the outer surface of the eyehole 3 is stuck with a group of transparent films 31, the outer wall of the fire-proof helmet 1 at one side of the eye window 3 is provided with a supporting plate 4, the upper end and the lower end of the supporting plate 4 are symmetrically connected with a sliding rod 41, the slide rod 41 is connected with a slide block 42 in a sliding way, a spring 43 is sleeved on the slide rod 41 between the slide block 42 and the support plate 4, a first magic tape 44 is arranged on the side surface of the sliding block 42 far away from the supporting plate 4, the end parts of the transparent film 31 far away from the supporting plate 4 are respectively connected with an L-shaped second magic tape 5, the second magic tape 5 is sleeved on the side surface of the sliding rod 41 and can slide on the surface of the sliding rod, the side surfaces, close to the first magic tape 44, of the second magic tape 5 are both provided with bonding surfaces capable of being bonded with the second magic tape, and the other side surfaces, opposite to the bonding surfaces, of the second magic tape 5 are both provided with smooth surfaces; when the fire-fighting self-rescue respirator works, a fireman or a rescue worker needs to wear the fire-fighting self-rescue respirator for a long time when putting out a fire, and particularly after the eyewindow 3 is stuck with water, a large amount of dust and impurities can be accumulated on the eyewindow 3, so that the fire-fighting sight of the fireman or the rescue worker is shielded, and the fire-fighting and disaster-relief work is influenced; although some respirators in the prior art can remove dust and impurities on the eyeholes 3 by arranging the water spraying and scraping mechanism, the respirators loaded with a certain amount of water increase the weight of the respirators, the workload of a user is increased invisibly, the amount of water in the respirators is limited, the effect of continuously cleaning the eyeholes 3 cannot be achieved, meanwhile, the visual field of a wearer can be influenced by water flow and the water scraping plate when the respirators are used, the cleaning effect on the surfaces of the eyeholes 3 is not good, and therefore the using effect of the respirators is reduced; when the respirator is used, a group of transparent films 31 are attached to the outer surfaces of the eye windows 3, so that dust and impurities in a fire scene can be accumulated on the outermost transparent film 31 of the eye windows 3, the slide block 42 in an initial state is positioned on one side of the second magic tape 5 under the action of the spring 43, the first magic tape 44 on the slide block 42 is adhered to the adhesive surface of the second magic tape 5 on the outermost transparent film 31, when a certain amount of dust and impurities on the outermost transparent film 31 are accumulated and the visual field of a wearer is influenced, the slide block 42 is pushed to move towards one side of the supporting plate 4 on the slide rod 41, so that the moving slide block 42 can drive the two magic tapes adhered to move synchronously, and the first magic tape 44 on the outermost transparent film 31 can be uncovered from the surface of the inner transparent film 31 when moving, therefore, a user can conveniently remove the uncovered transparent film 31 from the eye window 3, and the transparent film 31 exposed on the outermost side of the eye window 3 again can greatly improve the visual field definition of a wearer and improve the safety of the wearer; when the user does not apply an acting force to the slider 42 any more, the slider 42 is reset under the elastic force of the spring 43, so that the first magic tape 44 on the slider 42 is bonded with the second magic tape 5 on the latest transparent film 31, and the transparent film 31 can be recycled; one side between two adjacent second magic tapes 5 is set to be a smooth surface, and the two sides are not bonded, so that the second magic tapes 5 cannot influence the adjacent second magic tapes 5 when being torn off, and the stability of the respirator in use is greatly improved; meanwhile, the transparent film 31 is driven to be removed from the eye window 3 by pushing the sliding block 42, so that the operation is simple and easy, the efficiency is high, and the effectiveness and the rapidness of the fire-fighting self-rescue respirator in use are effectively improved.

As an embodiment of the present invention, the inner side surface and the outer side surface of the second magic tape 5 are both provided with bonding surfaces capable of being bonded with each other, a gap 51 is provided between the side surfaces of two adjacent second magic tapes 5, a group of isolation grooves are symmetrically provided on the side surfaces of two adjacent second magic tapes 5 close to each other, isolation blocks 52 are movably filled between the two isolation grooves, a fixing block 6 made of a rubber material is provided on the side surface of the fire helmet 1 on one side of the supporting plate 4, and the fixing block 6 can fix the position of the sliding block 42; when the fireproof helmet 1 is in use, the sliding block 42 can uncover the outermost transparent film 31, but the uncovered transparent film 31 still needs to be torn off manually, so that the convenience of a wearer in use is affected, at the moment, the fixing block 6 capable of positioning the sliding block 42 is arranged on the fireproof helmet 1, when the outermost transparent film 31 needs to be uncovered, the sliding block 42 is pushed to extrude the elastic fixing block 6, so that the sliding block 42 can cross over the fixing block 6, after the fixing block 6 is reset, the fixing block 6 can shield and fix the sliding block 42, at the moment, the uncovered transparent film 31 can be effectively positioned on one side of the eyehole 3 under the fixing action of the sliding block 42, and the wearer does not need to additionally and completely uncover the transparent film 31; and the spacing block 52 that sets up can separate adjacent No. two magic subsides 5 each other, prevent that two magic subsides from laminating each other and bonding and influence normal use, when slider 42 drives No. two magic subsides 5 of innermost simultaneously and moves, this No. two magic subsides 5 take place to break away from with adjacent No. two magic subsides 5 this moment, spacing block 52 between the two drops because of no longer receiving to shelter from, it is convenient that follow-up slider 42 drives No. two magic subsides 5 of end fixing and bonds with adjacent No. two magic subsides 5 mutually when reseing, thereby make No. two magic subsides 5 can last and stable work.

As an embodiment of the present invention, the isolation slot has an arc shape, and the isolation block 52 is disposed in a cylindrical shape matching with the arc slot; the during operation, in order to make the spacer 52 can be more convenient drop when breaking away from in the emergence of adjacent No. two magic subsides 5, through setting up the shape of isolation groove and spacer 52 this moment, when making spacer 52 can keep apart 5 adjacent No. two magic subsides smoothly, also can make No. two magic subsides 5 when keeping away from each other, cylindric spacer 52 can be more easily convenient break away from and drop from the inside isolation groove of follow, thereby the effectual stability and the validity of respirator when using have been improved.

As an embodiment of the present invention, a sliding groove 45 is disposed on a side surface of the sliding rod 41 along an axial direction thereof, a locking groove 46 vertically communicated with the sliding groove 45 is disposed on a side surface of the sliding rod 41 close to the second magic tape 5, a locking block 47 is disposed inside the sliding block 42, and the locking block 47 is located inside the sliding groove 45 and can be engaged with the locking groove 46; in order to increase the stability of the slide block 42 in the non-operating state during operation, the slide block 42 is provided with a locking block 47, when the respirator is not worn or used any more, the slide block 42 is rotated and the locking block 47 can be synchronously rotated into the locking groove 46, the locking block 47 and the locking groove 46 which are mutually clamped can limit the axial movement of the slide block 42 along the slide rod 41, the situation that the slide block 42 accidentally slides under the action of external force and drives the transparent film 31 to be uncovered is reduced, the stability of the slide block 42 in a non-working state is improved, and the sliding groove 45 can drive the locking block 47 to slide in the sliding groove 45 synchronously when the sliding block 42 moves, so that the sliding block 42 can work smoothly, the moving sliding block 42 can be limited, and the stability of the sliding block 42 in work is greatly improved.

As an embodiment of the present invention, both ends of the sliding block 42 are respectively connected with a pulling rope 7, and a free end of the pulling rope 7 is located at the bottom end of the fire-proof helmet 1; the during operation, in order to make transparent film 31 on the eyehole 3 more convenient and fast take off, this moment through set up haulage rope 7 respectively at slider 42 both ends, when needs take off transparent film 31 from eyehole 3 through slider 42 drive, this moment only need through the pulling be close to haulage rope 7 of backup pad 4 one side drive slider 42 motion can, when slider 42 needs to reset simultaneously, this moment through the pulling be close to No. two magic subsides 5 one side haulage rope 7 can, thereby the convenience and the practicality of respirator when using have been improved greatly.

In one embodiment of the present invention, the transparent films 31 are polyester films, and the transparent films 31 are adhered to each other by 502 glue; in operation, because polyester film has better mechanical properties and high temperature resistance than general plastic film, make transparent film 31 still have good result of use at the fire scene of high temperature, and because bond each other through 502 glues between the transparent film 31, and 502 glues have more firm adhesive force than general glue under the normal atmospheric temperature state, reduce transparent film 31 of laminating and take place to break away from or the circumstances such as stick up the limit, and 502 glues the easy inefficacy under the high temperature state, make transparent film 31 of 502 gluing bonding carry out more easily effectual the tearing off because of the glue inefficacy when the high temperature state, thereby the stability of transparent film 31 when using has effectively been improved.

When the eye window is in operation, the transparent film 31 is adhered to the outer surface of the eye window 3, so that dust and impurities in a fire scene can be accumulated on the outermost transparent film 31 of the eye window 3, the slider 42 in an initial state is positioned on one side of the second magic tape 5 under the action of the spring 43, the first magic tape 44 on the slider 42 is adhered to the adhesive surface of the second magic tape 5 on the outermost transparent film 31, when a certain amount of dust and impurities on the outermost transparent film 31 are accumulated and the visual field of a wearer is affected, the slider 42 is pushed to move towards one side of the support plate 4 on the slider 41, so that the moving slider 42 can drive the two magic tapes adhered to move synchronously, the first magic tape 44 on the outermost transparent film 31 can open the film from the surface of the inner transparent film 31 during movement, and a user can remove the opened transparent film 31 from the eye window 3 conveniently, the transparent film 31 exposed on the outermost side of the eye window 3 can greatly improve the visual field definition of a wearer and improve the safety of the wearer; when the user does not apply an acting force to the slider 42 any more, the slider 42 is reset under the elastic force of the spring 43, so that the first magic tape 44 on the slider 42 is bonded with the second magic tape 5 on the latest transparent film 31, and the transparent film 31 can be recycled; one side between two adjacent second magic tapes 5 is set to be a smooth surface, and the two sides are not bonded, so that the second magic tapes 5 cannot influence the adjacent second magic tapes 5 when being torn off, and the stability of the respirator in use is greatly improved; meanwhile, the transparent film 31 is driven to be removed from the eye window 3 by pushing the sliding block 42, so that the operation is simple and easy, the efficiency is high, and the effectiveness and the rapidness of the fire-fighting self-rescue respirator in use are effectively improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.