CN115227999B - Multiple gas washing filterable smoke mask - Google Patents

Abstract

The invention belongs to the technical field of smoke masks, and discloses a smoke mask with multiple gas washing and filtering functions. According to the invention, ambient air is enabled to flow into the filtering mechanism in an accelerating way through the suction action of the curved pipe, and after the flow rate of the sucked air is increased, the total amount of the pure air entering the head cover through the filtering mechanism is increased, so that the actual oxygen sucking strength of a user is improved, the mixed air after breathing is sucked out by matching with the air suction pipe above, the discharge of the mixed air after breathing in the head cover is improved, the total ratio of the pure oxygen-containing air of the head cover is ensured to be larger, the actual oxygen sucking requirement of the user is greatly met, the too little amount of the pure air entering after layer-by-layer filtering and sucking is effectively avoided, the breathing effect of the user is improved, and the use effect is good.

Description

Multiple gas washing filterable smoke mask

Technical Field

The invention belongs to the technical field of smoke masks, and particularly relates to a smoke mask with multiple gas washing and filtering functions.

Background

The gas filtering box is a gas filtering part of the gas mask, can be divided into a dust-proof gas filtering box and a gas-proof gas filtering box according to the application occasion and the operation environment of the gas filtering box, and generally consists of a gas filtering box main body, gas filtering cotton and a gas filtering cotton cover.

In the prior art, in the use, aiming at the smoke mask for the household fire control and the formation, in order to ensure that the smoke mask has enough smoke protection effect, a thicker filter layer is generally required to be additionally arranged, so that the total amount of ambient air sucked into the smoke mask is smaller under the normal breathing condition of a user in the wearing use process, the blocking condition of actual air is serious when passing through the filter layer, the breathing air quantity is smaller when the sufficient smoke filtering is realized, the tight escape process clamp breathes and blows air in the fire control and the survival process, however, the user is easily under the condition of micro oxygen deficiency when the air is insufficient, the escape use effect of the user is influenced, and the user generates discomfort such as oxygen deficiency.

From outside, smoke mask among the prior art, in the use, in order to guarantee that the user can wear conveniently and have the good protection effect of head, generally make smoke mask be wear type fire-proof headgear, and set up great embolia mouth in the bottom, make the user can convenient cover on the head, and fix around rolling up through the sealing strip in the bottom after embolia, nevertheless there is certain gap in the bottom after the fixed is actually rolled up, make environment flue gas enter into the face guard inside, and face guard integral mechanism is stable relatively poor, rock about the user's head easily after wearing, when the fast running keeps away danger, smoke mask deflects easily, influence user's normal escape, the result of use is not good.

Disclosure of Invention

The present invention is directed to a smoke mask with multiple gas washing and filtering functions, which solves the above-mentioned problems.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a multiple gas washing filterable smoke mask, includes the headgear, the bottom surface fixedly connected with bottom circle of headgear, the positive fixed intercommunication of headgear has the ferrule, the internal surface fixed of ferrule has cup jointed filtering mechanism, filtering mechanism's terminal surface is equipped with sealing mechanism, filtering mechanism's bottom surface fixed mounting has the mounting bracket, the internal surface fixed mounting of mounting bracket has the gas pump that goes, the terminal surface fixed intercommunication of gas pump has a pipe, the terminal surface fixed intercommunication of a pipe has a pipe No. two, the terminal surface fixed intercommunication of No. two pipes has the intercommunication board, the side of intercommunication board is fixed the intercommunication respectively has curved pipe and breathing pipe, the breathing pipe is fixed cup joint with the headgear, the inner of curved pipe passes the headgear and extends to filtering mechanism's inside and with filtering mechanism fixed cup joint.

First embodiment: as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, after the smoke mask is worn, the threaded rod in the sealing mechanism is rotated, so that the threaded rod pushes the sealing plug to move out of the air inlet hole, meanwhile, the first spring stretches, the air pump is started, the curved pipe and the air suction pipe suck air simultaneously along with the air pump, so that smoke in the environment enters the interior of the filtering mechanism through the air inlet hole, pure air is sucked into the filtering pipe through the smoke after being filtered and adsorbed by the first-stage filtering layer, the second-stage filtering layer, the third-stage filtering layer, the fourth-stage filtering layer and the fifth-stage filtering layer, part of air enters the interior of the headgear, part of pure air in the filtering pipe is sucked into the curved pipe, meanwhile, the mixed air after being breathed in the headgear is sucked through the air suction pipe, and the air in the curved pipe and the air suction pipe are simultaneously conveyed into the air pump through the communication plate, the second pipe and the first pipe, and blown out into the control mechanism through the third pipe.

Firstly, through addding the air pump suction air, the cooperation inserts the curved tube in the filter medium and cup joints at the inside breathing pipe of headgear for ambient air is circulated to filter medium with higher speed through the suction effect of curved tube, and after improving the suction air velocity of flow, make the pure air total amount that enters into the headgear through filter medium increase, thereby improved user's actual oxygen inhalation intensity, the breathing pipe of cooperation top, make the mixed air suction after breathing, improve the discharge of the mixed air after breathing in the headgear, guarantee the pure oxygen-containing air total ratio of headgear is bigger, thereby satisfied user's actual oxygen inhalation requirement greatly, effectively avoid filtering layer upon layer and adsorb the pure air that gets into too little after, the respiratory effect of user has been improved, and is excellent in use.

Preferably, the filter mechanism comprises a filter pipe, a first-stage filter layer, a second-stage filter layer, a third-stage filter layer, a fourth-stage filter layer, a fifth-stage filter layer, an air inlet and a sleeve hole, wherein the filter pipe is fixedly sleeved in the inner surface of the sleeve pipe, the first-stage filter layer, the second-stage filter layer, the third-stage filter layer, the fourth-stage filter layer and the fifth-stage filter layer are sequentially and fixedly sleeved in the inner surface of the filter pipe from outside to inside, the air inlet and the sleeve hole are respectively arranged on two end surfaces of the filter pipe, hot air burns the surface within 200 degrees, the filter large-particle dust and the second-stage filter layer are microporous carbon fiber conversion layers, the activated carbon fiber adopted by the filter mechanism has large specific surface area and abundant micropores, and the micropore volume accounts for more than 90 percent of the total pore volume, the air purifying device has the advantages that the air purifying device has larger adsorption capacity and faster adsorption dynamic performance, the device can be recycled, the three-stage filter layer is a delay reversal air washing layer, the adsorbent in the layer carries out chemical adsorption on harmful aerosol in air, the adsorbent and the adsorbent form surface compounds, the adsorption heat is higher, the air purifying device is selective, the air purifying device is usually irreversible, the four-stage filter layer is a later-stage air purifying layer, the ultrafiltration membrane is arranged in the layer to carry out air physical adsorption, adsorbed molecules keep the original chemical property, the adsorption heat is lower, the adsorption heat is not selective, the adsorption and desorption speeds are higher, the five-stage filter layer is an antibacterial comfort layer, and the layer is formed by flannelette textile fabrics containing the antibacterial agent and directly faces face skin, so that the comfort level is improved.

Preferably, the sealing mechanism is movably arranged in the air inlet hole, the outer surface of the curved pipe is fixedly sleeved with the sleeve hole, and the air is sucked in the filtering mechanism through the curved pipe, so that the effect of sucking ambient air is enhanced, and the breathing difficulty is reduced.

Preferably, the sealing mechanism comprises a fixed plate, a threaded rod, a sealing plug and a first spring, wherein the fixed plate is fixedly sleeved on the inner surface of the air inlet, the threaded rod is in threaded sleeve connection with the fixed plate, the outer end of the sealing plug is movably arranged in the air inlet, the first spring is fixedly connected between the sealing plug and the filter tube, and the sealing plug is pushed to move by rotating the threaded rod, so that the air inlet is opened, and ventilation is performed.

Preferably, the inner surface of the headgear is fixedly connected with an elastic air bag, the inner surface of the bottom ring is fixedly sleeved with an elastic air ring, an intermediate pipe is fixedly communicated between the elastic air bag and the elastic air ring, the top surface of the inner surface of the headgear is fixedly connected with a top pad, and the elastic air bag and the elastic air ring are communicated through the intermediate pipe, so that the elastic air bag and the elastic air ring can be effectively inflated at the same time.

Preferably, the front of headgear has seted up the mounting groove, the internal surface of mounting groove has fixedly cup jointed the observation window, through the transparent observation window of installation for can effectively observe external environment when fleing, improve escape efficiency.

Preferably, the bottom surface fixed mounting of mounting bracket has control mechanism, the fixed intercommunication in bottom surface of air pump has No. three pipes, no. three pipe's lower extreme and control mechanism fixed intercommunication, fixed intercommunication has the long tube between control mechanism and the elasticity balloon, realizes the sealing of bottom circle through the inflation of elasticity balloon, cooperates the elasticity gasbag of swelling, improves the stability of joining in marriage.

Preferably, the control mechanism comprises a control box, an inner cavity, a through hole, a second spring, a control plate, a curved hole, a control rod, a step groove, a movable plate and a first hole, wherein the control box is fixedly connected to the bottom surface of the mounting frame, the inner cavity is formed in the control box, the control plate is movably sleeved in the inner cavity, the first hole and the Qu Kong are formed in the top surface of the control plate, the through hole is formed in the top surface of the control box, the second spring is fixedly connected to the inner cavity and fixedly connected with the control plate, the reset of the control plate is conveniently realized when the second spring is used for rotating the control rod, and when the first hole is communicated with the through hole, air is introduced into the long pipe.

Preferably, the control rod is in threaded connection on the end face of the control box, the stepped groove is formed in the end face of the control plate, the movable plate is movably connected in the inner surface of the stepped groove in a sleeved mode and fixedly connected with the control rod, the movable plate is movably connected in the stepped groove in a sleeved mode, the control plate is driven to move under the condition of rotating the control rod, and therefore position switching of a first hole and Qu Kong on the control plate is achieved, and then the inflation wind direction of the air pump is changed.

Second embodiment: as shown in fig. 1, 3, 4, 5, 7, 8 and 9, after wearing, the air pump is started and continuous suction is performed, and meanwhile, the control rod in the control mechanism is adjusted, so that the first hole on the control plate is communicated with the through hole, further, the sucked air is conveyed into the long tube through the third tube, further, the air in the long tube is circulated into the elastic balloon, part of the air is circulated into the elastic balloon through the middle tube, when the elastic balloon and the elastic balloon are expanded to be in contact with the body of a user, the control rod in the control mechanism is adjusted to drive the control plate to move inwards, the curved hole on the control plate is communicated with the through hole, the sucked air of the air pump is discharged through the end face of the control mechanism, and the elastic balloon are kept expanded.

Firstly, through the internal surface fixed connection elasticity gasbag at the headgear to the fixed elastic balloon that cup joints at the internal surface of bottom circle, be linked together elasticity gasbag and elastic balloon through utilizing the intermediate tube, and utilize the discharge direction of control mechanism control air pump, utilize the long tube to let in elasticity gasbag and elastic balloon with the suction air, thereby realize the inflation bulge of elasticity gasbag and elastic balloon, thereby utilize the elastic balloon of inflation to realize neck seal, avoid environment flue gas to enter into the inside of headgear, and the inside space of full packing headgear after the elasticity gasbag of both sides annular distribution is inflated, guarantee to contact with the head, improve and wear stability, avoid removing the rotatory slope of running in-process smoke mask, the in-service use effect has been improved.

In addition, through utilizing the elasticity effect of elasticity gasbag and elasticity balloon, the top pad on the top surface of cooperation headgear internal surface, and the top pad is elastic material, and then under the state of wearing of aerifing, protect from neck, head side and head top surface, realize the effective protection of wearer's head, avoid the head collision to appear under the state of running of fleing, improved the escape security of conflagration condition greatly, excellent in use effect.

The beneficial effects of the invention are as follows:

1. according to the invention, the air pump is additionally arranged to pump air, the curved pipe inserted into the filtering mechanism is matched with the air suction pipe sleeved in the headgear, so that ambient air is enabled to flow into the filtering mechanism in an accelerating way under the suction action of the curved pipe, and after the flow rate of the sucked air is increased, the total amount of pure air entering the headgear through the filtering mechanism is increased, so that the actual oxygen suction intensity of a user is improved, the air suction pipe above the air pump is matched, the mixed air after breathing is sucked out, the discharge of the mixed air after breathing in the headgear is improved, the total ratio of the pure oxygen-containing air of the headgear is ensured to be larger, the actual oxygen suction requirement of the user is greatly met, the excessively small amount of the pure air entering the headgear after layer-by-layer filtering and adsorption is effectively avoided, the breathing effect of the user is improved, and the use effect is good.

2. According to the invention, the elastic air bag is fixedly connected to the inner surface of the headgear, the elastic air ring is fixedly sleeved on the inner surface of the bottom ring, the elastic air bag is communicated with the elastic air ring by utilizing the middle pipe, the discharging direction of the air pump is controlled by utilizing the control mechanism, and the suction air is introduced into the elastic air bag and the elastic air ring by utilizing the long pipe, so that the expansion and the bulge of the elastic air bag and the elastic air ring are realized, the neck sealing is realized by utilizing the expanded elastic air ring, the environment smoke is prevented from entering the interior of the headgear, the elastic air bags distributed annularly on two sides fully fill the inner space of the headgear after being inflated, the contact with the head is ensured, the wearing stability is improved, the rotation and the inclination of the smoke-proof mask in the moving running process are avoided, and the practical use effect is improved.

3. According to the invention, the elastic air bag and the elastic air ring are utilized to cooperate with the top pad on the top surface of the inner surface of the headgear, and the top pad is made of an elastic material, so that the neck, the side surface of the head and the top surface of the head are protected in an inflatable wearing state, the head of a wearer is effectively protected, head collision is avoided in an escape running state, the escape safety of fire situations is greatly improved, and the use effect is good.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a headgear of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic illustration of the connection between the second tube and the curved tube and the communication plate of the present invention;

FIG. 5 is a schematic cross-sectional view of a filtration mechanism of the present invention;

FIG. 6 is an exploded view of the sealing mechanism of the present invention;

FIG. 7 is a view showing the connection between the mounting bracket and the air pump according to the present invention;

FIG. 8 is a schematic cross-sectional view of a control mechanism of the present invention;

FIG. 9 is a schematic illustration of communication between an elastic balloon and an elastic balloon according to the present invention.

In the figure: 1. a head cover; 2. a bottom ring; 3. a ferrule; 4. a filtering mechanism; 41. a filter tube; 42. a first-stage filter layer; 43. a secondary filter layer; 44. a third-stage filter layer; 45. a four-stage filter layer; 46. a fifth-stage filter layer; 47. an air inlet hole; 48. trepanning; 5. a sealing mechanism; 51. a fixing plate; 52. a threaded rod; 53. a sealing plug; 54. a first spring; 6. a mounting frame; 7. an air pump; 8. a first pipe; 9. a second pipe; 10. a communication plate; 11. a curved tube; 12. an air suction pipe; 13. a third pipe; 14. a control mechanism; 141. a control box; 142. an inner cavity; 143. a through hole; 144. a second spring; 145. a control board; 146. a curved hole; 147. a control lever; 148. a stepped groove; 149. a movable plate; 1410. a first hole; 15. a long tube; 16. a mounting groove; 17. an observation window; 18. a top pad; 19. an elastic air bag; 20. an elastic balloon; 21. an intermediate tube.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 9, the embodiment of the invention provides a smoke mask with multiple gas washing filtration, which comprises a headgear 1, wherein the bottom surface of the headgear 1 is fixedly connected with a bottom ring 2, the front surface of the headgear 1 is fixedly connected with a sleeve pipe 3, the inner surface of the sleeve pipe 3 is fixedly sleeved with a filter mechanism 4, the end surface of the filter mechanism 4 is provided with a sealing mechanism 5, the bottom surface of the filter mechanism 4 is fixedly provided with a mounting frame 6, the inner surface of the mounting frame 6 is fixedly provided with a degassing pump 7, the end surface of the air pump 7 is fixedly connected with a first pipe 8, the end surface of the first pipe 8 is fixedly connected with a second pipe 9, the end surface of the second pipe 9 is fixedly connected with a communicating plate 10, the side surfaces of the communicating plate 10 are respectively fixedly connected with a curved pipe 11 and an air suction pipe 12, the air suction pipe 12 is fixedly sleeved with the headgear 1, and the inner end of the curved pipe 11 penetrates through the headgear 1 and extends into the filter mechanism 4 and is fixedly sleeved with the filter mechanism 4.

First embodiment: as shown in fig. 1, 2, 3, 4, 5 and 6, after the smoke mask is worn, the threaded rod 52 in the sealing mechanism 5 is rotated, so that the threaded rod 52 pushes the sealing plug 53 to move out of the air inlet hole 47, the first spring 54 is stretched, the air pump 7 is started, as the air pump 7 sucks air, the curved pipe 11 and the air suction pipe 12 suck air simultaneously, so that smoke in the environment enters the interior of the filtering mechanism 4 through the air inlet hole 47, pure air is sucked into the filtering pipe 41 by suction after the smoke is filtered and adsorbed by the first filtering layer 42, the second filtering layer 43, the third filtering layer 44, the fourth filtering layer 45 and the fifth filtering layer 46, part of the air enters the interior of the headgear 1, part of the pure air located in the filtering pipe 41 is sucked into the curved pipe 11, meanwhile, the mixed air breathed in the headgear 1 is sucked through the air suction pipe 12, the air in the curved pipe 11 and the air suction pipe 12 is simultaneously conveyed into the air pump 7 through the communication plate 10 and the first pipe 9 and the third pipe 8, and blown out into the control mechanism 14.

Firstly, through addding air pump 7 suction air, the cooperation inserts the curved tube 11 in filtering mechanism 4 and cup joints the inside breathing pipe 12 of headgear 1, make the ambient air circulate to filtering mechanism 4 with higher speed through the suction effect of curved tube 11, and after improving the suction air velocity, make the pure air total amount that enters into headgear 1 through filtering mechanism 4 increase, thereby improved the actual oxygen inhalation intensity of user, the breathing mixed air suction of cooperation top, the discharge of the mixed air after making breathing in the headgear 1, guarantee that headgear 1's pure oxygen-containing air total ratio is bigger, thereby satisfied user's actual oxygen inhalation requirement greatly, effectively avoid layer upon layer filtering the pure air that gets into after the absorption too little, the breathing effect of user has been improved, excellent in use effect.

The filtering mechanism 4 comprises a filtering tube 41, a first-stage filtering layer 42, a second-stage filtering layer 43, a third-stage filtering layer 44, a fourth-stage filtering layer 45, a fifth-stage filtering layer 46, an air inlet 47 and a trepanning 48, wherein the filtering tube 41 is fixedly sleeved in the inner surface of the trepanning tube 3, the first-stage filtering layer 42, the second-stage filtering layer 43, the third-stage filtering layer 44, the fourth-stage filtering layer 45 and the fifth-stage filtering layer 46 are sequentially and fixedly sleeved in the inner surface of the filtering tube 41 from outside to inside, the air inlet 47 and the trepanning 48 are respectively arranged on two end surfaces of the filtering tube 41, the first-stage filtering layer 42 is a temperature-resistant coarse particle filtering layer, the layer is a surface facing the external environment directly, and is used for resisting hot air within 200 degrees to burn the face, and filtering large-particle dust, the second-stage filtering layer 43 is a microporous carbon fiber conversion layer, the active carbon fiber adopted by the layer has large specific surface area and abundant micropores, the micropore volume accounts for more than 90% of the total pore volume, the active carbon fiber has larger adsorption capacity and faster adsorption dynamic performance, the regenerable cycle is used, the third-stage filtering layer 44 is a resistance air-washing layer, the inner-layer is an inner-layer, the chemical adsorbent is used for adsorbing and the harmful aerosol in the air, the thermal adsorbent is adsorbed by the layer, and the thermal adsorbent is formed by the chemical absorbent, and the surface is directly and adsorbed by the thermal absorbent and the filter layer, and the thermal absorbent is kept by the thermal absorbent and the thermal absorbent layer is a high and the surface layer and the thermal absorbent layer and the fabric and the thermal layer is the air and the air.

Wherein, sealing mechanism 5 movable mounting is in the inside of inlet port 47, and curved tube 11's surface is fixed cup joint with trepanning 48, inhales in filtering mechanism 4 through curved tube 11, strengthens the effect that ambient air inhaled, reduces the breathing degree of difficulty.

The sealing mechanism 5 comprises a fixing plate 51, a threaded rod 52, a sealing plug 53 and a first spring 54, the fixing plate 51 is fixedly sleeved on the inner surface of the air inlet hole 47, the threaded rod 52 is in threaded sleeve connection with the fixing plate 51, the outer end of the sealing plug 53 moves inside the air inlet hole 47, the first spring 54 is fixedly connected between the sealing plug 53 and the filter tube 41, and the threaded rod 52 is rotated to push the sealing plug 53 to move, so that the air inlet hole 47 is opened, and ventilation is performed.

The inner surface of the headgear 1 is fixedly connected with an elastic air bag 19, the inner surface of the bottom ring 2 is fixedly sleeved with an elastic air ring 20, a middle pipe 21 is fixedly communicated between the elastic air bag 19 and the elastic air ring 20, the top surface of the inner surface of the headgear 1 is fixedly connected with a top pad 18, and the elastic air bag 19 and the elastic air ring 20 are communicated by utilizing the middle pipe 21, so that the elastic air bag 19 and the elastic air ring 20 can be effectively inflated at the same time.

Wherein, the front of headgear 1 has seted up mounting groove 16, and the internal surface of mounting groove 16 has fixedly cup jointed observation window 17, through transparent observation window 17 of installation for can effectively observe the external environment when fleing, improve escape efficiency.

Wherein, the bottom surface fixed mounting of mounting bracket 6 has control mechanism 14, and the fixed intercommunication in bottom surface of air pump 7 has No. three pipe 13, and No. three pipe 13's lower extreme and control mechanism 14 fixed intercommunication have long tube 15 between control mechanism 14 and the elasticity balloon 20, realizes the sealing of bottom circle 2 through the inflation of elasticity balloon 20, cooperates the elasticity gasbag 19 of swelling, improves the stability of joining in marriage.

Wherein, control mechanism 14 includes control box 141, inner chamber 142, through-hole 143, spring two 144, control panel 145, qu Kong 146, control lever 147, ladder groove 148, fly leaf 149 and hole 1410 No. one, control box 141 fixed connection is in the bottom surface of mounting bracket 6, inner chamber 142 is seted up in the inside of control box 141, control panel 145 activity cup joints in the inside of inner chamber 142, hole No. one 1410 and Qu Kong 146 all are seted up on the top surface of control panel 145, through-hole 143 is seted up on the top surface of control box 141, spring two 144 fixed connection is in the inside of inner chamber 142 and with control panel 145 fixed connection, through the elasticity that utilizes spring two 144, be convenient for realize control panel 145's reset when whirling control lever 147, and when hole No. 1410 and through-hole 143 intercommunication, realize letting in the air into long tube 15.

Wherein, control lever 147 screw thread cup joints on the terminal surface of control box 141, and the ladder groove 148 is offered on the terminal surface of control panel 145, and the fly leaf 149 activity cup joints in the internal surface of ladder groove 148 and with control lever 147 fixed connection, through making fly leaf 149 activity cup joint in ladder groove 148, and then drive control panel 145 and remove under the circumstances of rotatory control lever 147 to realize the position switching of hole 1410 and Qu Kong 146 on the control panel 145, and then change the air inflation wind direction of air pump 7.

Second embodiment: as shown in fig. 1, 3, 4, 5, 7, 8 and 9, when the air pump 7 is started and suction is continuously performed after the air pump is worn, the control rod 147 in the control mechanism 14 is adjusted, so that the first hole 1410 on the control plate 145 is communicated with the through hole 143, further, suction air is conveyed into the long tube 15 through the third tube 13, further, air in the long tube 15 is circulated into the elastic balloon 20, part of the air is circulated into the elastic balloon 19 through the middle tube 21, when the elastic balloon 20 and the elastic balloon 19 are inflated to be in contact with the body of a user, the control rod 147 in the control mechanism 14 is adjusted, the control plate 145 is driven to move inwards, the curved hole 146 on the control plate 145 is communicated with the through hole 143, suction air of the air pump 7 is discharged through the end face of the control mechanism 14, and the elastic balloon 20 and the elastic balloon 19 keep inflated.

Firstly, through fixedly connecting the elastic air bag 19 on the inner surface of the headgear 1, fixedly sleeving the elastic air ring 20 on the inner surface of the bottom ring 2, communicating the elastic air bag 19 with the elastic air ring 20 by utilizing the middle pipe 21, controlling the discharging direction of the air pump 7 by utilizing the control mechanism 14, and leading the sucked air into the elastic air bag 19 and the elastic air ring 20 by utilizing the long pipe 15, thereby realizing the expansion and bulge of the elastic air bag 19 and the elastic air ring 20, realizing the neck seal by utilizing the expanded elastic air ring 20, avoiding the environmental smoke from entering into the headgear 1, fully filling the inner space of the headgear 1 after the elastic air bags 19 distributed annularly on two sides are inflated, ensuring the contact with the head, improving the wearing stability, avoiding the rotation and the inclination of the smoke preventing mask in the moving running process, and improving the actual use effect.

In addition, through utilizing the elasticity effect of elasticity gasbag 19 and elasticity balloon 20, the top pad 18 on the top surface of cooperation headgear 1 internal surface, and top pad 18 is elastic material, and then under the state of wearing of aerifing, protect from neck, head side and head top surface, realize the effective protection of wearer's head, avoid the head collision to appear under the state of running of fleing, improved the escape security of conflagration condition greatly, excellent in use effect.

It is stated that relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A smoke mask with multiple gas washing and filtering functions, which comprises a headgear (1), and is characterized in that: the bottom surface of headgear (1) is fixedly connected with bottom circle (2), the front fixedly connected with of headgear (1) has ferrule (3), the internal surface of ferrule (3) fixedly cup joints filter medium (4), the terminal surface of filter medium (4) is equipped with sealing mechanism (5), the bottom surface fixed mounting of filter medium (4) has mounting bracket (6), the internal surface fixed mounting of mounting bracket (6) has air pump (7), the terminal surface fixed intercommunication of air pump (7) has first pipe (8), the terminal surface fixed intercommunication of first pipe (8) has second pipe (9), the terminal surface fixed intercommunication of second pipe (9) has intercommunication board (10), the side of intercommunication board (10) fixedly connected with curved pipe (11) and breathing pipe (12) respectively, the fixed cup joint of breathing pipe (12) and headgear (1), the inner of curved pipe (11) pass headgear (1) and extend to the inside of filter medium (4) and fixedly cup joint with filter medium (4), sealing mechanism (5) include fixed board (52), threaded rod (51) and an inlet port fixed at fixed surface (51) of sealing plug (51), threaded rod (52) cup joint with fixed plate (51) screw thread, the outer end activity of sealing plug (53) is in the inside of inlet port (47), first (54) fixed connection of spring is between sealing plug (53) and filter tube (41), the internal surface fixedly connected with elasticity gasbag (19) of headgear (1), the internal surface fixedly cup joint elasticity balloon (20) of bottom circle (2), fixed intercommunication has intermediate tube (21) between elasticity gasbag (19) and elasticity balloon (20), the top surface fixedly connected with top pad (18) of headgear (1) internal surface, the bottom surface fixed mounting of mounting bracket (6) has control mechanism (14), the bottom surface fixed intercommunication of air pump (7) has No. three pipe (13), the lower extreme and the control mechanism (14) fixed intercommunication of No. three pipe (13), fixed intercommunication has long tube (15) between control mechanism (14) and the elasticity balloon (20), control mechanism (14) include control box (141), inner chamber (142), through-hole (38146), step (146), control plate (147) and movable plate (1410) of ladder (146), control box (141) fixed connection is in the bottom surface of mounting bracket (6), the inside at control box (141) is seted up to inner chamber (142), control panel (145) activity cup joints the inside at inner chamber (142), hole No. one (1410) and Qu Kong (146) are all seted up on the top surface of control panel (145), through-hole (143) are seted up on the top surface of control box (141), spring two (144) fixed connection is in the inside of inner chamber (142) and with control panel (145) fixed connection, control rod (147) screw thread cup joints on the terminal surface of control box (141), ladder groove (148) are seted up on the terminal surface of control panel (145), fly leaf (149) activity cup joint in the internal surface of ladder groove (148) and with control rod (147) fixed connection.

2. A multiple gas wash filtered smoke mask as defined in claim 1, wherein: the filter mechanism (4) comprises a filter tube (41), a first-stage filter layer (42), a second-stage filter layer (43), a third-stage filter layer (44), a fourth-stage filter layer (45), a fifth-stage filter layer (46), an air inlet hole (47) and a sleeve hole (48), wherein the filter tube (41) is fixedly sleeved in the inner surface of the sleeve tube (3), the first-stage filter layer (42), the second-stage filter layer (43), the third-stage filter layer (44), the fourth-stage filter layer (45) and the fifth-stage filter layer (46) are sequentially and fixedly sleeved in the inner surface of the filter tube (41) from outside to inside, and the air inlet hole (47) and the sleeve hole (48) are respectively formed in two end faces of the filter tube (41).

3. A multiple gas wash filtered smoke mask as defined in claim 1, wherein: the sealing mechanism (5) is movably arranged in the air inlet hole (47), and the outer surface of the curved pipe (11) is fixedly sleeved with the sleeve hole (48).

4. A multiple gas wash filtered smoke mask as defined in claim 1, wherein: the front of the headgear (1) is provided with a mounting groove (16), and the inner surface of the mounting groove (16) is fixedly sleeved with an observation window (17).

Images