CN110101987B

CN110101987B - Foldable gas mask

Info

Publication number: CN110101987B
Application number: CN201910295751.3A
Authority: CN
Inventors: 吴静华
Original assignee: Qingdao Dongfang Security Protection Products Factory
Current assignee: QINGDAO DONGFANG SECURITY PROTECTION PRODUCTS FACTORY
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-10-27
Anticipated expiration: 2039-04-12
Also published as: JP6617338B1; JP2020171639A; CN110101987A

Abstract

The invention discloses a foldable gas mask, which comprises a wearing device, wherein the wearing device comprises a left cover body and a right cover body, the front ends of the left cover body and the right cover body are connected with an elastic piece capable of being attached to the face, the lower ends of the left cover body and the right cover body are connected with a filtering device, and the rear sides of the left cover body and the right cover body are connected with a detoxifying device.

Description

Foldable gas mask

Technical Field

The invention relates to the field of escape and rescue, in particular to a foldable gas mask.

Background

The gas mask is a common escape and rescue tool, the gas mask must be worn at the fire scene and the toxic gas leakage place, the general gas mask has larger volume, and when more people need to be rescued at the accident scene, the fire fighters are inconvenient to carry the gas mask with enough quantity, so the design of the foldable gas mask with the three times of filtered air is really necessary.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a foldable gas mask, which can solve the above problems in the prior art.

The invention is realized by the following technical scheme: the invention relates to a foldable gas mask, which comprises a wearing device, wherein the wearing device comprises a left cover body and a right cover body, the front ends of the left cover body and the right cover body are connected with an elastic piece which can be attached to the face, the lower ends of the left cover body and the right cover body are connected with a filtering device, the rear sides of the left cover body and the right cover body are connected with a detoxifying device, the filtering device comprises plastic pipes which are bilaterally symmetrical and are respectively and fixedly connected with the lower ends of the left cover body and the right cover body, a channel is arranged in the plastic pipes in a vertically through mode, a fixed block is fixedly arranged on the upper side of the channel, a motor is fixedly arranged in the fixed block, a screw rod is rotatably arranged in the channel, the upper end of the screw rod is dynamically connected with the motor, a thread block is slidably arranged in the channel, the threaded hole penetrates through the threaded block, the lower end of the screw rod extends into the threaded hole and is in threaded connection with the threaded hole, a filter plate is arranged on the lower side of the threaded block in a sliding mode, six condenser pipes are fixedly connected between the filter plate and the threaded block, a dust separation plate is fixedly connected to the lower side of the channel, through holes with backward openings are formed in the inner wall of the rear side of the channel in a communicating mode, an air guide pipe is fixedly connected to the rear end of the plastic pipe, a pipeline is arranged in the air guide pipe in a left-right through mode, and one-way valves with opposite openings are arranged in the pipelines on; the motor is started after the mask is taken, when the air is sucked, the motor drives the screw to rotate forwards to drive the threaded block and the filter plate to slide upwards, air is sucked into the channel and filtered twice, then the air can pass through the through hole, the air can pass through the left pipeline, the motor on the right side drives the screw on the right side to rotate reversely when the air is exhaled, the threaded block on the right side and the filter plate on the left side are pushed to slide downwards, and then the air is discharged from the pipeline on the right side.

According to a further technical scheme, the wearable device comprises a connecting cavity which is arranged in the left cover body and is provided with a right opening, a connecting shaft is fixedly connected between the front inner wall and the rear inner wall of the connecting cavity, the right cover body extends into the connecting cavity and is fixedly connected to the connecting shaft, the left end of the right cover body abuts against the left inner wall of the connecting cavity, containing cavities with upward openings are respectively arranged in the left cover body and the right cover body, containing wheels are rotatably connected between the front inner wall and the rear inner wall of the containing cavities, mask belts wound on the containing wheels at two sides are connected between the containing wheels at two sides, and containing torsion springs are fixedly connected between the containing wheels and the front inner wall and the rear inner wall of the; the mask belt is pulled out and is worn on the hindbrain, and the left mask body and the right mask body are tightly attached to the face under the elastic action of the storage torsion spring.

According to a further technical scheme, the toxin expelling device comprises a filtering barrel which is rotatably arranged on the rear side of the left cover body, a connecting hole is formed in the filtering barrel in a forward opening mode, the connecting shaft extends into the connecting hole and is in threaded connection with the connecting hole, an air guide channel is arranged in the filtering barrel, the air guide tube extends into the air guide channel, an anti-corrosion plate is fixedly arranged on the inner wall of the rear side of the air guide channel, an air guide screen is fixedly arranged on the inner wall of the front side of the air guide channel, an adsorption block is filled between the anti-corrosion plate and the air guide screen, an air guide groove with a forward opening is formed in the inner wall of the front side of the air guide channel in a communication mode, a suction nozzle which is right opposite to the air guide groove is fixedly arranged at the front end; rotate the filter vat make it connect in on the connecting axle, it is left the pipeline lets in the air guide channel, and pass through adsorb the noxious material in the piece adsorbed air, the air after the purification passes through the air guide groove with the suction nozzle chamber can supply to breathe, and the gas of exhalation gets into pass through once more in the air guide channel adsorb the piece, prevent the secondary toxic gas that discharges, under the influence of gravity, the corrosion-resistant plate can avoid adsorb the piece directly with air guide channel rear side inner wall contact.

According to a further technical scheme, a rotating wheel is rotatably and slidably arranged on the filter barrel, sealing plates are symmetrically and rotatably arranged in the front and back of the rotating wheel, and a clamping torsion spring is fixedly connected between one end, close to the center, of each sealing plate and the rotating wheel; the rotating wheel is slid, the sealing plate is abutted against the left cover body and the right cover body, the sealing plate is worn under the chin, the chin is clamped under the elastic action of the clamping torsion spring, and the sealing performance of the mask is improved.

The invention has the beneficial effects that: the gas-proof mask is simple in structure and convenient to operate, can assist in absorbing air along with the breathing of a wearer, prevents a person from absorbing toxic gas by filtering the air for three times, can be folded, and is convenient to carry.

Drawings

FIG. 1 is a schematic view of the internal structure of a foldable respirator of the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" in FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "B-B" in FIG. 1;

FIG. 4 is a schematic view of the structure in the direction "C-C" in FIG. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up-down, front-back, left-right directions described below correspond to the up-down, front-back, left-right directions in the projection relation of fig. 1 itself.

Referring to fig. 1-4, the foldable gas mask according to the present invention comprises a wearing device 101, the wearing device 101 comprises a left cover 23 and a right cover 24, the front ends of the left cover 23 and the right cover 24 are connected with an elastic member capable of adhering to the face, the lower ends of the left cover 23 and the right cover 24 are connected with a filtering device 100, the rear sides of the left cover 23 and the right cover 24 are connected with a detoxifying device 102, the filtering device 100 comprises plastic pipes 11 which are bilaterally symmetrical and respectively fixedly connected to the lower ends of the left cover 23 and the right cover 24, a channel 13 is vertically communicated in the plastic pipes 11, a fixed block 20 is fixedly arranged on the upper side of the channel 13, a motor 12 is fixedly arranged in the fixed block 20, a screw 17 is rotatably arranged in the channel 13, the upper end of the screw 17 is dynamically connected to the motor 12, a thread block 22 is slidably arranged in the channel 13, the lower end of the thread block 22 is fixedly connected with a connecting rod 16, a threaded hole 18 is formed in the connecting rod 16, the opening of the connecting rod is upward, the threaded hole 18 penetrates through the thread block 22, the lower end of the screw 17 extends into the threaded hole 18 and is in threaded connection with the threaded hole 18, a filter plate 15 is arranged on the lower side of the thread block 22 in a sliding mode, six condensation pipes 19 are fixedly connected between the filter plate 15 and the thread block 22, a dust separation plate 14 is fixedly connected on the lower side of the channel 13, through holes 21 with backward openings are formed in the inner wall of the rear side of the channel 13 in a communicating mode, the rear end of the plastic pipe 11 is fixedly connected with a gas guide pipe 29, a pipeline 43 is arranged in the gas guide pipe 29 in a communicating mode from left to right; after the mask is taken, the motor 12 is started, when the air is inhaled, the motor 12 drives the screw rod 17 to rotate forward, the screw block 22 and the filter plate 15 are driven to slide upwards, the air is further inhaled into the channel 13 and filtered twice, the air is further enabled to pass through the through hole 21, the air can pass through the pipeline 43 on the left side, when the air is exhaled, the motor 12 on the right side drives the screw rod 17 on the right side to rotate reversely, the screw block 22 on the right side and the filter plate 15 on the left side are pushed to slide downwards, and the air is further exhausted from the pipeline 43 on the right side.

Beneficially, the wearing device 101 includes a connecting cavity 25 arranged in the left cover 23 with a right opening, a connecting shaft 28 is fixedly connected between the front and rear inner walls of the connecting cavity 25, the right cover 24 extends into the connecting cavity 25 and is fixedly connected to the connecting shaft 28, the left end of the right cover 24 abuts against the left inner wall of the connecting cavity 25, receiving cavities 33 with upward openings are respectively arranged in the left cover 23 and the right cover 24, receiving wheels 34 are rotatably connected between the front and rear inner walls of the receiving cavities 33, mask belts 35 wound on the receiving wheels 34 at both sides are connected between the receiving wheels 34 at both sides, and receiving torsion springs 44 are fixedly connected between the receiving wheels 34 and the front and rear inner walls of the receiving cavities 33; the mask belt 35 is pulled out and is worn on the back head, and the left mask body 23 and the right mask body 24 are tightly attached to the face under the elastic force of the storage torsion spring 44.

Beneficially, the detoxification device 102 includes a rotatable filter barrel 27 disposed at the rear side of the left cover 23, a connection hole 36 is disposed in the filter barrel 27 with a forward opening, the connection shaft 28 extends into the connection hole 36 and is in threaded connection with the connection hole 36, an air guide channel 38 is disposed in the filter barrel 27, the air guide tube 29 extends into the air guide channel 38, an anti-corrosion plate 40 is fixedly disposed on an inner wall of the rear side of the air guide channel 38, an air guide screen 41 is fixedly disposed on an inner wall of the front side of the air guide channel 38, an adsorption block 39 is filled between the anti-corrosion plate 40 and the air guide screen 41, an air guide groove 37 with a forward opening is disposed in the inner wall of the front side of the air guide channel 38 in a communicating manner, a suction nozzle 30 facing the air guide groove 37 is fixedly disposed at the front end of the filter barrel 27, and a suction nozzle cavity 31 is; rotate the filter vat 27 make it connect in on the connecting axle 28, it is left pipeline 43 lets in the air guide channel 38, and pass through adsorb the noxious material in the piece 39 adsorbed air, the air after the purification passes through air guide groove 37 with suction nozzle chamber 31 can supply breathing, the gaseous entering of exhalation passes through again in the air guide channel 38 adsorb the piece 39 is adsorbed, prevents to discharge secondary toxic gas, under the influence of gravity, anticorrosive board 40 can avoid adsorb piece 39 directly with the contact of air guide channel 38 rear side inner wall.

Beneficially, the filter vat 27 is rotatably and slidably provided with a rotating wheel 26, the rotating wheel 26 is symmetrically and rotatably provided with a sealing plate 32 in front and back, and a clamping torsion spring 42 is fixedly connected between one end of the sealing plate 32 close to the center and the rotating wheel 26; the rotating wheel 26 is slid to press the sealing plate 32 against the left cover 23 and the right cover 24, the sealing plate 32 is worn under the chin, and the chin is clamped under the elastic force of the clamping torsion spring 42, so that the sealing performance of the mask is improved.

When in use, the vent cover belt 35 is pulled and taken on the back brain, the left cover body 23 and the right cover body 24 are attached to the face under the action of the elastic force of the accommodating torsion spring 44, the filter barrel 27 is connected to the connecting shaft 28, the rotating wheel 26 is slid, the sealing plate 32 is abutted against the left cover body 23 and the right cover body 24, the sealing plate 32 is taken under the chin, the chin is clamped under the action of the elastic force of the clamping torsion spring 42, the motor 12 is started, the motor 12 drives the screw rod 17 to rotate forward when inhaling, the threaded block 22 and the filter plate 15 are driven to slide upwards, then the air is inhaled into the channel 13 and is filtered twice, solid dust and liquid sol are removed, then the air passes through the through hole 21, at the moment, the air can pass through the left pipeline 43, then the air is introduced into the air guide channel 38, toxic gas in the air is adsorbed by the adsorption block 39, the purified air is inhaled into the body through the, when the patient exhales, the right motor 12 drives the right screw 17 to rotate reversely, so as to push the right screw block 22 to slide downwards with the left filter plate 15, the exhaled gas enters the gas guide channel 38 and is adsorbed again by the adsorption block 39, and the secondary toxic gas is prevented from being exhausted, so that the gas is exhausted from the right pipeline 43.

The beneficial effects are that: the gas-proof mask is simple in structure and convenient to operate, can assist in absorbing air along with the breathing of a wearer, prevents a person from absorbing toxic gas by filtering the air for three times, can be folded, and is convenient to carry.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. A foldable gas mask comprises a wearing device, the wearing device comprises a left cover body and a right cover body, the front ends of the left cover body and the right cover body are connected with an elastic piece which can be attached to the face, the lower ends of the left cover body and the right cover body are connected with a filtering device, the rear sides of the left cover body and the right cover body are connected with a toxin expelling device, the filtering device comprises plastic pipes which are bilaterally symmetrical and are fixedly connected to the lower ends of the left cover body and the right cover body respectively, a channel is arranged in the plastic pipes in a vertically through mode, a fixing block is fixedly arranged on the upper side of the channel, a motor is fixedly arranged in the fixing block, a screw rod is rotatably arranged in the channel, the upper end of the screw rod is in power connection with the motor, a thread block is slidably arranged in the channel, the lower end, the threaded hole penetrates through the threaded block, the lower end of the screw rod extends into the threaded hole and is in threaded connection with the threaded hole, a filter plate is arranged on the lower side of the threaded block in a sliding mode, six condenser pipes are fixedly connected between the filter plate and the threaded block, a dust separation plate is fixedly connected to the lower side of the channel, through holes with backward openings are formed in the inner wall of the rear side of the channel in a communicating mode, an air guide pipe is fixedly connected to the rear end of the plastic pipe, a pipeline is arranged in the air guide pipe in a left-right through mode, and one-way valves with opposite openings are arranged in the pipelines on; the motor is started after the mask is worn, when the air is sucked, the motor drives the screw to rotate forward to drive the thread block and the filter plate to slide upwards, so that the air is sucked into the channel and filtered twice, the air can pass through the through hole, the air can pass through the pipeline on the left side, when the air is exhaled, the motor on the right side drives the screw on the right side to rotate reversely to push the thread block on the right side and the filter plate on the left side to slide downwards, and the air is exhausted from the pipeline on the right side; the wearable device comprises a connecting cavity which is arranged in the left cover body and has a right opening, a connecting shaft is fixedly connected between the front inner wall and the rear inner wall of the connecting cavity, the right cover body extends into the connecting cavity and is fixedly connected with the connecting shaft, the left end of the right cover body is abutted against the left inner wall of the connecting cavity, containing cavities with upward openings are respectively arranged in the left cover body and the right cover body, containing wheels are rotatably connected between the front inner wall and the rear inner wall of the containing cavities, mask belts wound on the containing wheels at two sides are connected between the containing wheels at two sides, and containing torsion springs are fixedly connected between the containing wheels and the front inner wall and the rear inner wall of the containing cavities; the mask belt is pulled out and is worn on the hindbrain, and the left mask body and the right mask body are tightly attached to the face under the elastic action of the accommodating torsion springs; the toxin expelling device comprises a rotatable filter barrel arranged on the rear side of the left cover body, a connecting hole is formed in the filter barrel in a forward opening mode, the connecting shaft extends into the connecting hole and is in threaded connection with the connecting hole, an air guide channel is arranged in the filter barrel, the air guide tube extends into the air guide channel, an anti-corrosion plate is fixedly arranged on the inner wall of the rear side of the air guide channel, an air guide screen is fixedly arranged on the inner wall of the front side of the air guide channel, an adsorption block is filled between the anti-corrosion plate and the air guide screen, an air guide groove with a forward opening is formed in the inner wall of the front side of the air guide channel in a communicated mode, a suction nozzle right opposite to the air guide groove is fixedly arranged at the front end of the filter barrel; the filter barrel is rotated to be connected to the connecting shaft, the pipeline on the left side leads air into the air guide channel, toxic substances in the air are adsorbed by the adsorption block, the purified air can be breathed by the air guide groove and the suction nozzle cavity, the exhaled air enters the air guide channel and is adsorbed by the adsorption block again, secondary toxic gas is prevented from being discharged, and the corrosion prevention plate can prevent the adsorption block from directly contacting with the inner wall on the rear side of the air guide channel under the influence of gravity; the filter barrel is rotatably and slidably provided with a rotating wheel, the rotating wheel is symmetrically and rotatably provided with a sealing plate in a front-back manner, and a clamping torsion spring is fixedly connected between one end of the sealing plate close to the center and the rotating wheel; the rotating wheel is slid, the sealing plate is abutted against the left cover body and the right cover body, the sealing plate is worn under the chin, the chin is clamped under the elastic action of the clamping torsion spring, and the sealing performance of the mask is improved.