CN215938686U - Oxygen inhalation mask device of portable oxygen respirator - Google Patents

Abstract

The utility model provides a portable oxygen respirator's oxygen inhalation mask device, includes the oxygen cylinder main part, establishes air valve, characteristics on its top face: oxygen inhalation mask device includes the face guard main part, bottleneck lock and gas case, the face guard main part is including oxygen supply cover and installation cover, face guard main part locating plate is provided with to the nearly middle part of face guard main part, there is gas case backstop seat the central point of face guard main part locating plate, be formed with the gas case push pedal on the gas case backstop seat, the central point of gas case push pedal puts the gas case hole of stepping down, bottleneck lock is established in the inside of face guard main part, bottleneck lock includes lock screw thread portion and lock registrated portion, the gas case passes the gas case hole of stepping down and probes into the backstop seat inner chamber, there is the gas case locating plate on the week side surface of gas case core, there is the face guard main part adapter sleeve on the face guard main part locating plate, face guard main part adapter sleeve is connected with bottleneck lock. The structure is simple, and the number of parts is small; the oxygen inhalation is fast and convenient; is convenient to carry and transport; ensuring excellent and sanitary oxygen absorption effect.

Description

Oxygen inhalation mask device of portable oxygen respirator

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an oxygen inhalation mask device of a portable oxygen respirator.

Background

The modern society life and work pressure is big, the problem of air pollution also often appears in the city, to some weak or special physique crowds such as old man, pregnant woman, long-time mental worker, the oxygen uptake can help improving the health condition, simultaneously regularly the oxygen uptake operation also is effective to the treatment of diseases such as hypertension, asthma, flu, insomnia, and the oxygen uptake also can help the crowd on the plateau to alleviate altitude stress, therefore the portable oxygen respirator that is less than the volume obtains wide favor and is applied to people's daily life on a large scale. Oxygen is the first requirement of human life activities as a key substance for human metabolism. The modern society lives and works fast, the problem of air pollution also often appears in cities, for some weak or special-physique crowds such as the old, pregnant women, long-time mental workers and the like, the oxygen inhalation can help to improve the physical condition, meanwhile, the regular oxygen inhalation operation is also effective in treating diseases such as hypertension, asthma, influenza, insomnia and the like, and the oxygen inhalation can help the crowds on the plateau to relieve altitude stress, so the portable oxygen respirator with smaller volume is widely favored due to the advantages of convenience and easy operation and is widely applied to the daily life of people. The breathing mask is a necessary appliance for oxygen inhalation, the oxygen respirator comprises an oxygen tank, the top of the oxygen tank is provided with an air valve and an air outlet piece arranged on the air valve, the breathing mask is trumpet-shaped, one end part in the length direction is provided with a connecting hole, the other end part in the length direction is provided with an opening matched with the shape of the oxygen tank body, when the portable oxygen respirator is in a placing state or is carried, the mask is arranged on the oxygen tank in a matching way, and when a user needs to inhale oxygen, the mask is taken down from the oxygen tank body and the connecting hole of the mask is arranged together with the air outlet piece in a matching way; however, when the existing breathing mask is used for oxygen inhalation, the breathing mask needs to be repeatedly disassembled and assembled, the operation of a user is needed by both hands, the operation process is very slow and tedious, the requirement of quick oxygen inhalation when the body is uncomfortable cannot be met, the breathing mask is easy to lose, meanwhile, when the breathing mask is stored, dust or various impurities are easily stained, the dust can cause human body coughing and choking during breathing, and the health of the human body is not utilized. In addition, when the oxygen inhalation mask is used, an oxygen inhaler presses the air outlet part downwards, so that the air valve jets oxygen outwards and inhales oxygen by means of the breathing mask, the air valve and the air outlet part are directly exposed outside, the volumes of the air valve and the air outlet part are small, the volume of the breathing mask is larger than that of the air outlet valve core, on one hand, the air valve and the air outlet part are assembled together with the breathing mask and are quite discordant, the appearance is poor, meanwhile, when the oxygen inhalation mask is used, the air valve and the air outlet part are directly exposed outside, and once the air valve and the air outlet part are collided and the like, the oxygen inhalation mask is extremely easy to damage, and the actual requirements of consumers cannot be met.

In view of the above, there is a need for a reasonable improvement of the structure of the oxygen mask of the prior portable oxygen respirator. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oxygen inhalation mask device of a portable oxygen respirator, which has the advantages of simple structure, less parts and good visibility, is beneficial to realizing quick operation, can quickly realize control on an air valve while holding an oxygen bottle, effectively meets the real-time oxygen inhalation requirement of a user without repeated assembly, is beneficial to improving the structure of a mask main body, is convenient to carry and use and ensures excellent and sanitary oxygen inhalation effect.

The utility model aims to achieve the aim, and the portable oxygen respirator comprises an oxygen bottle main body, wherein a bottle body conical part is formed at the top end of the oxygen bottle main body, and an air valve is arranged on the end surface of the top end of the bottle body conical part, and is characterized in that the oxygen respirator comprises a mask main body which is in an integrally formed structure and has two open ends, a bottle mouth buckling piece sleeved on the top of the bottle body conical part, and an air valve core arranged on the air valve, the mask main body is hollow and comprises an oxygen supply mask which can be mutually attached to the face of an oxygen user in a use state and a mounting sleeve arranged at the upper part of the oxygen bottle main body, an inner cavity of the mounting sleeve is formed in the mounting sleeve, and a mask main body positioning plate is formed at the position close to the middle of the height direction of the mask main body and at the position corresponding to the upper part of the mounting sleeve, a gas valve core stop seat extending towards the inner cavity of the mounting sleeve is formed at the central position of the positioning plate of the mask main body, a stop seat inner cavity is formed in the gas valve core stop seat in a hollow manner, a gas valve core push plate is formed at one side of the gas valve core stop seat far away from the positioning plate of the mask main body, a gas valve core abdicating hole penetrating through the gas valve core abdicating hole in the thickness direction is formed at the central position of the gas valve core push plate, a bottle mouth buckling piece is arranged in the mask main body, the bottle mouth buckling piece is of an integrally formed structure and comprises a buckling piece threaded part and a buckling piece sleeved part, the gas valve core penetrates through the gas valve core abdicating hole and extends into the stop seat inner cavity, a gas valve core positioning plate is formed on the peripheral side surface of the outer part of the inner cavity of the stop seat and at the position close to the gas valve core push plate, and the width of the gas valve core positioning plate is larger than the width of the gas valve core abdicating hole, the mask body positioning plate is provided with a mask body connecting sleeve, the mask body connecting sleeve is hollow and can be connected with a fastener thread part of a bottleneck fastener in a threaded manner, when the gas valve is in a closed state, the mask body connecting sleeve and the fastener thread part are not completely locked, a gas valve core push plate of the gas valve core stop seat is positioned and arranged on the gas valve core positioning plate of the gas valve core, when the gas valve needs to be opened, the mask body connecting sleeve can be further screwed with the fastener thread part, so that the mask body is integrally moved towards the gas valve, and the gas valve core push plate of the gas valve core stop seat pushes the gas valve core positioning plate at the moment, and the gas valve core opens the gas valve.

In a specific embodiment of the present invention, an air valve matching cavity is formed at an end portion of the air valve core facing the air valve, the air valve matching cavity is adapted to a shape of the air valve, the air valve matching cavity and the air valve are mutually matched and installed together, an oxygen delivery through hole penetrating through the air valve matching cavity in a height direction is further formed at a central position of the air valve core, the oxygen delivery through hole is mutually communicated with the air valve matching cavity, and the oxygen delivery through hole is further communicated with an inner hollow cavity of the oxygen delivery cover.

In another specific embodiment of the present invention, the fastener screw portion of the bottleneck fastener is of a circular tube structure and has a fastener screw external thread formed on an outer peripheral side wall thereof, the fastener engaging portion is engaged with an upper portion of the tapered portion of the oxygen cylinder body, the fastener screw portion is formed at an upper portion of a top end of the fastener engaging portion, a tube diameter of the fastener screw portion is smaller than a radial diameter of the fastener engaging portion, the fastener engaging portion is of a cylindrical structure and has an engaging portion inner cavity formed therein in a hollow manner, a ring of engaging portion connecting convex ring is formed on an inner peripheral side wall of the engaging portion inner cavity around a circumferential direction thereof, a bottle tapered portion mating flange is formed on a top portion of the tapered portion, and the engaging portion connecting convex ring is fitted and mounted with the bottle tapered portion mating flange, thereby realizing the positioning connection of the buckling piece nesting part and the bottle body conical part.

In another embodiment of the present invention, the connecting sleeve of the mask body is hollow and forms a cylindrical connecting sleeve cavity, and a connecting sleeve internal thread is formed on the inner side wall of the connecting sleeve cavity, and the connecting sleeve internal thread is in threaded connection with the fastener thread external thread of the fastener thread, so as to realize the matched installation of the mask body and the bottleneck fastener.

In another specific embodiment of the present invention, two air valve core guide lugs are respectively formed at two end positions of the air valve core positioning plate of the air valve core in the length direction, two air valve core guide tracks are formed on the inner side wall of the fastening member threaded portion and at positions corresponding to the two air valve core guide lugs, the air valve core guide tracks are arranged to extend along the vertical direction, and the air valve core guide lugs are slidably fitted in the respective air valve core guide tracks and can move in the air valve core guide tracks.

In a further specific embodiment of the present invention, a plurality of mask ventilation holes penetrating through the mask body positioning plate in the thickness direction are arranged on the mask body positioning plate at intervals, and the mask ventilation holes are communicated with the inner cavity of the oxygen mask and the inner cavity of the mounting sleeve.

In a further specific embodiment of the present invention, a circle of positioning and matching convex ring is formed on the peripheral side surface of the fastener engaging portion of the bottleneck fastener around the circumferential direction thereof, a plurality of positioning plate matching strips are arranged at intervals at the edge position of the positioning plate of the mask body towards the inner cavity of the mounting sleeve, and a positioning plate matching strip convex foot is formed at the end position of one end of the positioning plate matching strip far away from the positioning plate of the mask body in the length direction, and the positioning plate matching strip convex foot and the positioning and matching convex ring are matched and mounted together, so as to realize the positioning and connection of the mask body and the bottleneck fastener.

In a more specific embodiment of the present invention, an upper lip attaching portion capable of fitting with the upper lip skin of the human body is formed on an end portion of the oxygen delivery mask away from the mounting sleeve, an arc portion capable of fitting with the lower portion of the lips of the human body face is further formed on an end portion of the oxygen delivery mask away from the mounting sleeve, and the upper lip attaching portion and the arc portion are in a vertical corresponding relationship with each other.

In a further specific embodiment of the utility model, a circle of oxygen supply hood protection edge in a round rolling structure is formed on one end part of the oxygen supply hood far away from the mounting sleeve and along the edge of the oxygen supply hood.

In a still more specific embodiment of the present invention, the mask body, the bottleneck fastener and the air valve core are all made of medical non-toxic PP or PVC material.

After adopting the structure, the utility model has the advantages that: firstly, the structure and assembly of the mask main body are optimized, so that the existing horn-shaped oxygen inhalation mask structure is abandoned, the mask main body can be directly assembled on the oxygen bottle main body, the structure is simple, a user can realize that the mask main body is screwed to realize quick oxygen discharge while holding the oxygen bottle with one hand when using the mask, so that the real-time oxygen inhalation requirement is met, oxygen can be obtained instantly by only one action, the air valve can be closed to realize intermittent oxygen inhalation by screwing back the mask main body, the oxygen is ensured not to be wasted, in addition, long-time oxygen discharge can be realized when the mask main body is in a carry screwing state, namely the air valve is in an opening state, and the user can realize long-term stable oxygen inhalation without pressing the air outlet piece for a long time like the existing oxygen respirator; secondly, because the air valve and the air valve core are accommodated in the mask main body, compared with the structure of the existing mask type oxygen respirator, the air valve and the air valve core in the technical scheme are not directly exposed outside, so that the effective protection effect is achieved, the safety and the reliability of long-term use are ensured, the integral structure is simple and firm, the installation is rapid and convenient, the design is attractive and ingenious, and the integral appearance is greatly improved; third, the face guard main part can the integral type assembly in the oxygen cylinder main part, and overall structure is similar to a beverage bottle size, the actual carrying and transporting of having made things convenient for greatly, also seem more elegant appearance, meanwhile, the user can directly will send the oxygen cover lock at the mouth position when the oxygen uptake, and send the oxygen cover guard edge that is formed with circle piping structure on sending the oxygen cover, and upper lip laminating portion and arc portion have been formed, therefore can guarantee to send oxygen portion and the best result of agreeing with of human facial mouth department, and the comfortable safety of better protection skin can not by the fish tail, comfortable smoothness when guaranteeing to inhale oxygen, can cover the mouth comprehensively when guaranteeing oxygen release simultaneously, guarantee superior gas tightness, avoid oxygen to run off.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is an exploded perspective view of an embodiment of the present invention.

Fig. 3 is a plan sectional view of an embodiment of the present invention with the air valve door in a closed state.

In the figure: 1. oxygen cylinder main body, 11, cylinder body conical part, 111, cylinder body conical part matching flange, 12, air valve;

2. the mask comprises a mask body, 21. an oxygen supply cover, 211. an upper lip joint part, 212. an arc part, 213. an oxygen supply cover protection edge, 22. a mounting sleeve, 221. a mounting sleeve inner cavity, 23. a mask body positioning plate, 231. a mask ventilation hole, 232. a positioning plate matching strip, 2321. a positioning plate matching strip convex foot, 24. an air valve core stop seat, 241. a stop seat inner cavity, 242. an air valve core push plate, 2421. an air valve core abdicating hole, 25. a mask body connecting sleeve, 251. a connecting sleeve inner cavity, 252. a connecting sleeve internal thread;

3. the bottle mouth fastener, 31, a fastener thread part, 311, a fastener thread part external thread, 312, an air valve core guide track, 32, a fastener nesting part, 321, a nesting part inner cavity, 3211, a nesting part connecting convex ring, 322, a positioning matching convex ring;

4. the oxygen valve comprises an air valve core, 41 air valve core positioning plates, 411 air valve core guiding lugs, 42 air valve matching cavities and 43 oxygen conveying through holes.

Detailed Description

The following detailed description of the embodiments of the present invention will be described with reference to the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes in form and not essential to the inventive concept should be regarded as the protection scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the corresponding positions of the drawings, and thus, should not be construed as particularly limiting the technical solutions provided by the present invention.

Referring to fig. 1 to 3, an oxygen mask device of a portable oxygen respirator includes an oxygen cylinder body 1, a cylinder body taper portion 11 formed at a top end of the oxygen cylinder body 1, and an air valve 12 disposed on a top end face of the cylinder body taper portion 11.

The technical key points of the technical scheme provided by the utility model are as follows: oxygen inhalation mask device is including being the face guard main part 2, the suit that integrated into one piece structure and both ends are open-ended the bottleneck buckling piece 3 at 11 tops of bottle toper portion and installing the air valve core 4 on air valve 12, the inside cavity of face guard main part 2 and including one can be under the user state with the oxygen supplicant's facial mask 21 of laminating each other with one install the cover 22 on oxygen bottle main part 1 upper portion, be formed with an installation cover inner chamber 221 in this installation cover 22 is inside, and the nearly middle position department of face guard main part 2 direction of height is in and corresponding to the upper portion position department of installation cover 22 constitutes a face guard main part locating plate 23, is formed with an orientation in the central point department of this face guard main part locating plate 23 the air valve core backstop seat 24 that installation cover inner chamber 221 extends the setting, the inside cavity of this air valve core backstop seat 24 is formed with a backstop seat inner chamber 241 and keeps away from at this air valve core backstop seat 24 one side of face guard main part locating plate 23 is formed with and is formed with A gas valve core push plate 242, a gas valve core abdicating hole 2421 penetrating through the thickness direction is arranged at the central position of the gas valve core push plate 242, the bottleneck buckling piece 3 is arranged inside the mask main body 2, the bottleneck buckling piece 3 is an integrated structure and comprises a buckling piece thread part 31 and a buckling piece nesting part 32, the gas valve core 4 passes through the gas valve core abdicating hole 2421 and extends into the inner cavity 241 of the stop seat, a gas valve core positioning plate 41 is formed on the peripheral side surface of the outer part of the inner cavity 241 of the stop seat and at the position close to the gas valve core push plate 242, the width of the gas valve core positioning plate 41 is larger than that of the gas valve core abdicating hole 2421, a mask main body 25 is formed on the mask main body positioning plate 23 and towards the inner cavity 221 of the mounting sleeve, the mask main body connecting sleeve 25 is hollow and can be connected with the buckling piece thread part 31 of the bottleneck buckling piece 3 through a thread, when the gas valve 12 is in a closed state, the connecting sleeve 25 of the mask body and the thread part 31 of the fastener are not completely locked, the gas valve core push plate 242 of the gas valve core stop seat 24 is positioned and arranged on the gas valve core positioning plate 41 of the gas valve core 4, and when the gas valve 12 needs to be opened, the connecting sleeve 25 of the mask body can be further screwed with the thread part 31 of the fastener, so that the mask body 2 integrally moves towards the gas valve 12, and at the moment, the gas valve core push plate 242 of the gas valve core stop seat 24 pushes the gas valve core positioning plate 41, so that the gas valve core 4 opens the gas valve 12.

Furthermore, an air valve matching cavity 42 is formed at an end of the air valve core 4 facing the air valve 12, the air valve matching cavity 42 is adapted to the shape of the air valve 12, the air valve matching cavity 42 and the air valve 12 are matched and mounted together, an oxygen conveying through hole 43 penetrating through the air valve core 4 in the height direction is further formed at the center position of the air valve core 4, the oxygen conveying through hole 43 is communicated with the air valve matching cavity 42, and the oxygen conveying through hole 43 is further communicated with the hollow cavity inside the oxygen supply hood 21.

Referring to fig. 1 and 2 and fig. 3, the fastener screw portion 31 of the neck opening fastener 3 is a circular tube structure and has a fastener screw portion external thread 311 formed on the outer peripheral sidewall thereof, the fastener engaging portion 32 is sleeved on the upper portion of the tapered bottle portion 11 of the oxygen bottle main body 1, the fastener screw portion 31 is formed on the upper portion of the top end of the fastener engaging portion 32, the tube diameter of the fastener screw portion 31 is smaller than the radial diameter of the fastener engaging portion 32, the fastener engaging portion 32 is a cylindrical structure and has an engaging portion cavity 321 formed in the hollow interior thereof, a ring of engaging portion connecting convex ring 3211 is formed on the inner peripheral sidewall of the engaging portion cavity 321 around the circumferential direction thereof, a bottle tapered portion mating flange 111 is formed on the top of the tapered bottle portion 11, the engaging portion connecting convex ring 3211 and the bottle tapered portion mating flange 111 are fitted together, thereby achieving the positioning connection of the fastener engaging portion 32 and the tapered portion 11 of the bottle body.

Further, the mask body connecting sleeve 25 is hollow and forms a cylindrical connecting sleeve inner cavity 251, a connecting sleeve inner thread 252 is formed on the inner side wall of the connecting sleeve inner cavity 251, and the connecting sleeve inner thread 252 is in threaded connection with the fastener thread part outer thread 311 of the fastener thread part 31, so that the mask body 2 and the bottleneck fastener 3 are installed in a matched manner.

In this embodiment, a valve core guide protrusion 411 is formed at each of the two end positions of the valve core positioning plate 41 of the valve core 4 in the length direction, and two valve core guide tracks 312 are formed on the inner side wall of the fastener screw portion 31 and at positions corresponding to the two valve core guide protrusions 411, the valve core guide tracks 312 extend along the vertical direction, and the valve core guide protrusions 411 are slidably fitted in the corresponding valve core guide tracks 312 and can move in the valve core guide tracks 312.

Furthermore, a circle of positioning matching convex ring 322 is formed on the peripheral side surface of the fastener nesting portion 32 of the bottleneck fastener 3 around the circumferential direction thereof, a plurality of positioning plate matching strips 232 are arranged at intervals at the edge position of the mask body positioning plate 23 towards the mounting sleeve inner cavity 221, a positioning plate matching strip convex foot 2321 is formed at the end position of one end of the positioning plate matching strip 232 far away from the mask body positioning plate 23 in the length direction, and the positioning plate matching strip convex foot 2321 is matched and installed with the positioning matching convex ring 322, so that the positioning connection of the mask body 2 and the bottleneck fastener 3 is realized.

Preferably, a plurality of mask ventilation holes 233 penetrating the mask body positioning plate 23 in the thickness direction are provided at intervals, the mask ventilation holes 233 are communicated with both the inner cavity of the oxygen mask 21 and the inner cavity 221 of the mounting sleeve, and the arrangement of the mask ventilation holes 233 facilitates the ventilation operation of a user during oxygen inhalation, thereby achieving good comfort.

Referring to fig. 1 and fig. 2 and 3, an upper lip attaching portion 211 capable of fitting with the upper lip skin of the human body is formed on an end portion of the oxygen delivery cover 21 away from the mounting sleeve 22, an arc portion 212 capable of fitting with the lower portion of the lips of the human body is further formed on an end portion of the oxygen delivery cover 21 away from the mounting sleeve 22, the upper lip attaching portion 211 and the arc portion 212 maintain a vertical correspondence, and a circle of oxygen delivery cover protecting edge 213 having a circular rolling structure is formed on an end portion of the oxygen delivery cover 21 away from the mounting sleeve 22 and along the edge thereof.

Preferably, the mask body 2, the bottleneck fastener 3 and the air valve core 4 are all made of medical non-toxic PP or PVC material.

Referring to fig. 2 and 3 in combination with fig. 1, fig. 3 shows a structural state when the air valve 12 is closed, at this time, the connecting sleeve 25 of the mask main body and the screw thread portion 31 of the fastener are not completely locked, the mask main body 2 can move towards the oxygen cylinder main body 1, and the air valve core push plate 242 of the air valve core stop seat 24 is positioned on the air valve core 4, when a user needs to inhale oxygen, the oxygen supply hood 21 of the mask main body 2 is fastened to his mouth, the upper lip attaching portion 211 is attached to the upper lip skin of his body, and the arc portion 212 is attached to the lower portion of his face, then the mask main body 2 is further screwed by hand, so that the connecting sleeve 5 of the mask main body is displaced towards the body of the air valve core 4, and the air valve core push plate 242 pushes the air valve core positioning plate 41 of the air valve core 4, at this time, the air valve core guide lug 411 moves in the air valve core guide track 312, then the gas valve core 4 further pushes the gas valve 12 matched with the gas valve core to move towards the inside of the oxygen bottle main body 1, at the moment, the gas valve 12 is opened, oxygen is ejected outwards from the inside of the oxygen bottle main body 1, the oxygen flows into the gas valve core 4 through the gas valve 12 and finally enters the oxygen supply hood 21 through the gas valve core matching cavity 42 and the oxygen supply through hole 43, and a user can comfortably and naturally inhale the oxygen; when the user rotates the mask body 2, the air valve core push plate 242 can release the air valve core positioning plate 41, and the air valve 12 is automatically closed, so that oxygen cannot overflow outwards.

In conclusion, the technical scheme provided by the utility model overcomes the defects in the prior art, successfully completes the utility model task and truly realizes the technical effects of the applicant in the technical effect column.

Claims (10)

1. An oxygen inhalation mask device of a portable oxygen respirator, the portable oxygen respirator comprises an oxygen bottle main body (1), a bottle conical part (11) is formed at the top end of the oxygen bottle main body (1), and an air valve (12) is arranged on the top end face of the bottle conical part (11), the oxygen inhalation mask device is characterized by comprising a mask main body (2) which is of an integrally formed structure and has two open ends, a bottle mouth buckling part (3) sleeved at the top of the bottle conical part (11) and an air valve core (4) arranged on the air valve (12), the mask main body (2) is hollow and comprises an oxygen feeding cover (21) which can be mutually attached to the face of an oxygen person in a use state and a mounting sleeve (22) arranged at the upper part of the oxygen bottle main body (1), a mounting sleeve inner cavity (221) is formed inside the mounting sleeve (22), a mask body positioning plate (23) is formed at the position close to the middle of the mask body (2) in the height direction and at the position corresponding to the upper part of the mounting sleeve (22), an air valve core stop seat (24) extending towards the mounting sleeve inner cavity (221) is formed at the central position of the mask body positioning plate (23), the air valve core stop seat (24) is hollow and is provided with a stop seat inner cavity (241), an air valve core push plate (242) is formed at one side of the air valve core stop seat (24) far away from the mask body positioning plate (23), an air valve core abdicating hole (2421) penetrating through the thickness direction of the air valve core push plate (242) is formed at the central position of the air valve core push plate (242), the bottleneck buckling piece (3) is arranged inside the mask body (2), the bottleneck buckling piece (3) is of an integrally formed structure and comprises a buckling piece thread part (31) and a buckling piece sleeving part (32), gas valve core (4) pass this gas valve core hole of stepping down (2421) and probe into in backstop seat inner chamber (241) gas valve core (4) core be located on the outside week side surface of backstop seat inner chamber (241) and be formed with a gas valve core locating plate (41) in the position department that is close to gas valve core push pedal (242), the width of this gas valve core locating plate (41) is greater than the width of gas valve core hole of stepping down (2421) on face guard main part locating plate (23) and towards mounting sleeve inner chamber (221) are formed with a face guard main part adapter sleeve (25), this face guard main part adapter sleeve (25) inside cavity can be in the same place with buckling piece screw thread portion (31) threaded connection of bottleneck buckling piece (3), when gas valve (12) are in the closed condition, face guard main part adapter sleeve (25) and buckling piece screw portion (31) are not locked completely, gas valve core (242) location setting of gas valve core backstop seat (24) is in the gas valve core of gas valve core push pedal (4) On locating plate (41), and when gas valve (12) need be opened, face guard main part adapter sleeve (25) can be further screwed up with buckle screw thread portion (31) for face guard main part (2) is whole to remove towards gas valve (12), and gas valve core push pedal (242) of gas valve core backstop seat (24) promote gas valve core locating plate (41) this moment to make gas valve core (4) open gas valve (12).

2. The oxygen mask device of a portable oxygen respirator according to claim 1, wherein an air valve fitting cavity (42) is formed at an end portion of the air valve core (4) facing the air valve (12), the air valve fitting cavity (42) is adapted to the shape of the air valve (12), the air valve fitting cavity (42) and the air valve (12) are fitted together, an oxygen delivery through hole (43) penetrating through the air valve fitting cavity (42) in the height direction is further formed at the center position of the air valve core (4), the oxygen delivery through hole (43) is communicated with the air valve fitting cavity (42), and the oxygen delivery through hole (43) is further communicated with the hollow cavity inside the oxygen mask (21).

3. The oxygen mask device of a portable oxygen respirator as claimed in claim 1, wherein the fastener screw thread portion (31) of the bottleneck fastener (3) is of a round tube structure and has fastener screw thread external threads (311) formed on the outer peripheral side wall thereof, the fastener engaging portion (32) is sleeved on the upper portion of the bottle body tapered portion (11) of the oxygen bottle body (1), the fastener screw thread portion (31) is formed on the upper portion of the top end of the fastener engaging portion (32), the tube diameter of the fastener screw thread portion (31) is smaller than the radial diameter of the fastener engaging portion (32), the fastener engaging portion (32) is of a cylindrical structure and has an engaging portion inner cavity (321) formed therein in a hollow manner, and a ring of engaging portion connecting convex ring (3211) is formed on the inner peripheral side wall of the engaging portion inner cavity (321) around the circumferential direction thereof, and a bottle body conical part matching flange (111) is formed at the top of the bottle body conical part (11), and the matching part connecting convex ring (3211) is matched and installed with the bottle body conical part matching flange (111) together, so that the positioning connection of the buckling part matching part (32) and the bottle body conical part (11) is realized.

4. The oxygen mask device of the portable oxygen respirator as claimed in claim 3, wherein the mask body connecting sleeve (25) is hollow and forms a cylindrical connecting sleeve inner cavity (251), and a connecting sleeve inner thread (252) is formed on the inner side wall of the connecting sleeve inner cavity (251), the connecting sleeve inner thread (252) is in threaded connection with the fastener thread outer thread (311) of the fastener thread portion (31), so as to realize the matching installation of the mask body (2) and the bottleneck fastener (3).

5. The oxygen mask device of the portable oxygen respirator according to claim 3, wherein an air valve core guide lug (411) is formed at each end position of the air valve core positioning plate (41) of the air valve core (4) in the length direction, two air valve core guide tracks (312) are formed on the inner side wall of the fastening piece threaded portion (31) and at positions corresponding to the two air valve core guide lugs (411), the air valve core guide tracks (312) extend in the vertical direction, and the air valve core guide lugs (411) are in sliding fit in the corresponding air valve core guide tracks (312) and can move in the air valve core guide tracks (312).

6. The oxygen inhalation mask device of the portable oxygen respirator as claimed in claim 1, wherein a plurality of mask ventilation holes (231) are arranged on the mask body positioning plate (23) at intervals in the thickness direction, and the mask ventilation holes (231) are communicated with the inner cavity of the oxygen mask (21) and the inner cavity (221) of the mounting sleeve.

7. The oxygen inhalation mask device of the portable oxygen respirator according to claim 1, wherein a circle of positioning and matching convex ring (322) is formed on the peripheral side surface of the fastener engaging portion (32) of the bottleneck fastener (3) around the circumferential direction thereof, a plurality of positioning plate matching strips (232) are arranged at the edge position of the mask body positioning plate (23) towards the mounting sleeve inner cavity (221) at intervals, a positioning plate matching strip convex foot (2321) is formed at the end position of the positioning plate matching strip (232) in the length direction far away from the mask body positioning plate (23), and the positioning plate matching strip convex foot (2321) is matched and installed with the positioning and matching convex ring (322) together, so that the positioning connection of the mask body (2) and the bottleneck fastener (3) is realized.

8. The oxygen inhalation mask device of the portable oxygen respirator of claim 1, wherein an upper lip attaching part (211) capable of fitting with the upper lip skin of the human body is formed on one end part of the oxygen delivery mask (21) far away from the mounting sleeve (22), an arc part (212) capable of fitting with the lower part of the lips of the human body face is further formed on one end part of the oxygen delivery mask (21) far away from the mounting sleeve (22), and the upper lip attaching part (211) and the arc part (212) keep up-down corresponding relation with each other.

9. The oxygen breathing mask device of a portable oxygen respirator as claimed in claim 1, characterized in that a ring of oxygen breathing mask protecting edge (213) in a round rolled structure configuration is formed on the end of the oxygen breathing mask (21) far away from the mounting sleeve (22) and along the edge thereof.

10. The oxygen inhalation mask device of the portable oxygen respirator of claim 1, wherein the mask body (2), the bottleneck fastener (3) and the air valve core (4) are all made of medical nontoxic PP or PVC material.

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