CN215938653U

CN215938653U - Portable oxygen respirator

Info

Publication number: CN215938653U
Application number: CN202122292704.9U
Authority: CN
Inventors: 陈浩; 丁剑秋; 丁峰; 邓磊杰
Original assignee: Lianyungang Lifeng Medical Oxygen Products Co ltd
Current assignee: Lianyungang Lifeng Medical Oxygen Products Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-04
Anticipated expiration: 2031-09-22

Abstract

A portable oxygen respirator belongs to the technical field of emergency rescue equipment. Have the oxygen jar body, play oxygen spare and respirator of oxygen including inside packing, the central point of the top terminal surface of the oxygen jar body puts the department and establishes the pneumatic valve, goes out oxygen spare and installs on the pneumatic valve, and respirator includes oxygen connecting portion, adaptation portion and spacing step, and the central point department of putting of the one end terminal surface of oxygen connecting portion has the connecting pipe, and the cavity looks switches on in the inside of connecting pipe and respirator, and adaptation portion has opening, characteristics: detachably cover on respirator's spacing step is equipped with the dust cover, and the dust cover is the setting of opening for cylinder shape structure and its length direction's one end, and the inside cavity of dust cover and well cavity suit the setting with play oxygen connecting part for the dust cover can be in the same place with play oxygen connecting part cooperation installation. The dustproof and clean-keeping effect is excellent, and the sanitation and reliability of a user during oxygen inhalation are ensured; the use is comfortable and convenient.

Description

Portable oxygen respirator

Technical Field

The utility model belongs to the technical field of emergency rescue equipment, and particularly relates to a portable oxygen respirator.

Background

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 often appears in cities, for some weak or special-physique crowds such as old people, pregnant women, long-time mental workers and the like, oxygen inhalation can help to improve the physical condition, meanwhile, regular oxygen inhalation operation is also effective in treating diseases such as hypertension, asthma, influenza, insomnia and the like, and oxygen inhalation can help crowds on plateaus to relieve altitude stress, so that the portable oxygen respirator with small volume is widely favored and is widely applied to daily life of people. The existing portable oxygen respirator mainly has two structures, namely a nasal obstruction type oxygen respirator and a mask type oxygen respirator, wherein the nasal obstruction type oxygen respirator comprises an oxygen tank and a nasal obstruction, and when oxygen inhalation is needed, the oxygen tank is connected with the nasal obstruction through a hose, but the nasal obstruction type oxygen respirator has more parts and is inconvenient to carry, and meanwhile, the operation is complicated during oxygen inhalation, and a lot of inconvenience exists; the mask type oxygen respirator is convenient to operate, safe and reliable, and becomes the mainstream structure of the prior portable oxygen respirator.

Present portable oxygen respirator of mask formula, mainly include that inside is filled has the oxygen cylinder of oxygen, piece and the face guard of giving vent to anger, the top of oxygen cylinder is connected with an air valve, it connects on this air valve to give vent to anger the piece, the one end tip of the length direction of face guard is provided with the connecting hole and its length direction's other end tip is provided with the opening that suits with the jar body shape of oxygen cylinder, be in laying state or when carrying when portable oxygen respirator, the face guard cooperation is installed on the oxygen cylinder, and when the user need carry out the oxygen uptake, through taking off the face guard from the oxygen cylinder body and install its connecting hole and the piece cooperation of giving vent to anger together, the user presses the piece of giving vent to anger and makes the air valve work, oxygen enters into in the face guard through air valve and the piece of giving vent to anger, user alright follow the face guard internal oxygen of inhaling. In order to ensure the sanitary effect, the connecting hole of the mask of the existing oxygen respirator is usually provided with a dustproof plug, so that dust is prevented from entering the connecting hole and the inside of the mask, but the protection mode of the dustproof plug has the following disadvantages: firstly, as the dustproof plug is arranged at the connecting hole, dust can be prevented from entering the mask through the connecting hole, but in order to facilitate ventilation of a user during oxygen inhalation and ensure smoothness of breathing, the mask is usually provided with the vent hole, and the dustproof plug cannot effectively protect the vent hole, so that the problem that dust or outside dirt invades the vent hole or enters the mask still exists, and sanitation and cleanness during oxygen inhalation cannot be further ensured; in addition, the existing dustproof plug is only similar to the size of a common pill, on one hand, when a user needs to inhale oxygen, the dustproof plug is difficult to operate when being taken out from the connecting hole, the dustproof plug needs to be fine and smooth to throw away when being taken out, and once the dustproof plug falls on the ground, the surface of the dustproof plug is polluted; and the other side is because the volume of dustproof stopper is less, and the user often will place dustproof stopper in other places far away from the oxygen jar during oxygen uptake, and after the oxygen uptake is accomplished, it is very troublesome to look for dustproof stopper, sometimes place in the package just hard to find to there is the possibility of losing.

In view of the foregoing, there is a need for a reasonable improvement in the structure of existing portable oxygen respirators. The technical solutions described below have been created in this context.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a portable oxygen respirator which is simple in structure, convenient to carry, convenient and comfortable to use, beneficial to effectively seal and protect through arranging a dust cover detachably connected to a breathing mask, and abandons a dust-proof mode of arranging a dust-proof plug, thereby ensuring a sanitary and clean oxygen inhalation effect, facilitating disassembly and assembly, and beneficial to realizing the firm combination of the breathing mask and an oxygen tank body, ensuring that a user cannot easily fall off during carrying, and realizing an excellent and comfortable use effect.

The utility model aims to accomplish the task in such a way that a portable oxygen respirator comprises an oxygen tank body, an oxygen outlet piece and a breathing mask, wherein the oxygen tank body is filled with oxygen, the top of the oxygen tank body is provided with a tank body conical part which is gradually contracted from bottom to top, an air valve is arranged at the central position of the top end surface of the tank body conical part, the oxygen outlet piece is arranged on the air valve, the breathing mask is of an integrally formed structure and is hollow in the interior, the breathing mask comprises an oxygen outlet connecting part and an adapting part, a limiting step is formed at the connecting position of the oxygen outlet connecting part and the adapting part, a connecting pipe is formed at the central position of one end surface of the oxygen outlet connecting part, which is far away from the limiting step, and faces to the hollow cavity of the breathing mask, the connecting pipe is communicated with the hollow cavity in the interior of the breathing mask, and the adapting part is provided with an opening which is matched with the shape of the oxygen tank body, the portable oxygen respirator is characterized in that a dust cover is detachably sleeved on a limiting step of the breathing mask, the dust cover is in a cylindrical structure, one end of the dust cover in the length direction is arranged in an open port, the dust cover is hollow, the hollow cavity is arranged in a manner of being matched with the oxygen outlet connecting part, so that the dust cover can be matched and installed with the oxygen outlet connecting part together, the portable oxygen respirator is in a placing state and an oxygen absorbing state, when the portable oxygen respirator is in the placing state, the adapting part of the breathing mask is positioned and sleeved on the upper part of the oxygen tank body, the oxygen outlet piece is arranged in the breathing mask, the dust cover is matched and installed with the oxygen outlet connecting part together and is positioned and arranged on the limiting step, and when the portable oxygen respirator is in the oxygen absorbing state, the dust cover is detached from the oxygen outlet connecting part and is not matched and installed with the oxygen outlet connecting part together, and the connecting pipe on the oxygen outlet connecting part is connected with the oxygen outlet piece, and the adapting part of the breathing mask is mutually attached to the face of a user, so that the user can carry out oxygen inhalation operation.

In a specific embodiment of the utility model, a plurality of anti-slip strips are convexly arranged and formed on the peripheral side surface of the dust cover at intervals.

In another specific embodiment of the present invention, the oxygen outlet member includes an oxygen outlet mounting sleeve having a hollow interior and an open bottom, an insertion tube extending in a vertical direction is formed at a central position inside the oxygen outlet mounting sleeve, the gas valve of the oxygen tank body passes through the opening of the oxygen outlet mounting sleeve and is inserted into the insertion tube, the insertion tube is further connected with an oxygen supply tube extending in a horizontal direction, the oxygen supply tube is communicated with the insertion tube, the oxygen supply tube extends outward from the insertion tube and passes through a side wall of the oxygen outlet mounting sleeve, the oxygen supply tube and a tube cavity of the connecting tube of the oxygen outlet connecting portion are configured to be matched, and the oxygen supply tube can be installed in the tube cavity of the connecting tube in a matching manner.

In another specific embodiment of the present invention, a reinforcing fixing portion is further disposed between the outer circumferential surface of the insertion tube and the inner cavity wall of the hollow cavity inside the oxygen outlet mounting sleeve, the reinforcing fixing portion is formed at a position corresponding to the oxygen delivery tube, the width of the reinforcing fixing portion is greater than the tube diameter of the insertion tube, a through hole through which the oxygen delivery tube can pass is formed in the reinforcing fixing portion, and a plurality of reinforcing ribs are further disposed between the outer circumferential surface of the insertion tube of the oxygen outlet member and the inner cavity wall of the hollow cavity inside the oxygen outlet mounting sleeve.

In another specific embodiment of the present invention, the top end surface of the oxygen outlet mounting sleeve of the oxygen outlet member is a circular arc surface structure with two convex sides and a concave middle, and a plurality of oxygen outlet mounting sleeve friction strips are formed on the top end surface of the oxygen outlet mounting sleeve in a protruding manner.

In a further specific embodiment of the present invention, the oxygen outlet connecting portion of the breathing mask includes a ventilation section and a positioning section, both of which have hollow structures, the ventilation section is formed on the limiting step, the positioning section is formed at a position of the ventilation section away from the limiting step, the ventilation section and the positioning section can be matched with the dust cover, the connecting pipe is formed at a middle position of an inner cavity of the positioning section, and a plurality of vent holes penetrating through the ventilation section in the thickness direction are formed on a surface of one side of the ventilation section.

In yet another specific embodiment of the present invention, the fitting portion of the respiratory mask includes a face-engaging segment, a tapered middle segment, and a transition segment, the transition section is formed at a position close to the oxygen outlet connecting part and is connected with the limit step, the tapered middle section is formed at one side position of the transition section far away from the oxygen outlet connecting part, the face fitting section is formed at a position of one side of the conical middle section far away from the transition section, the conical middle section is formed between the transition section and the face attaching section and gradually expands from the transition section to the face attaching section, namely, the radial diameter of the conical middle section axially connected to one end of the transition section is smaller than that of the conical middle section axially connected to the other end of the face joint section, and the facial laminating section is the structure of ring structure and this facial laminating section can realize laminating each other with user's face.

In a more specific embodiment of the present invention, a circle of assembling step is formed at the connection position of the face attaching section and the conical middle section, and a plurality of vertical protruding strips are formed on the inner side wall of the assembling step at intervals around the circumferential direction thereof, and the lower portions of the plurality of vertical protruding strips are connected to the inner side wall of the face attaching section while the upper portions of the plurality of vertical protruding strips are connected to the inner side wall of the conical middle section, and a plurality of vertical locking edges are formed on the inner side wall of the conical middle section at intervals around the circumferential direction of the assembling step at a position close to the assembling step, and a circle of oxygen tank body assembling edge is formed on the upper portion of the oxygen tank body at a position corresponding to the lower portion of the conical portion of the tank body, and the oxygen tank body assembling edge can be mutually fitted and installed with the plurality of vertical protruding strips, when the portable oxygen respirator is in the setting state, and a plurality of vertical clamping edges are positioned and installed on the top end surface of the assembling edge of the oxygen tank body.

In yet another embodiment of the present invention, a nose bridge matching portion capable of matching with the nose bridge portion of the human body and the skin on both sides of the nose bridge is formed on the face matching section, and an arc portion capable of matching with the lower portion of the lips of the human body is formed on the face matching section.

In yet a further specific embodiment of the present invention, the breathing mask is integrally formed of transparent plastic.

After adopting the structure, the utility model has the advantages that: firstly, compared with the existing oxygen respirator which adopts a dustproof mode that a dustproof plug is arranged in a connecting hole of the mask, the dustproof cover is integrally sleeved on the oxygen outlet connecting part to realize integral sealing protection of the oxygen outlet connecting part and prevent dust or other external foreign matters from being attached to the oxygen outlet connecting part or entering the oxygen outlet connecting part, so that the whole breathing mask is ensured to be clean and sanitary, the dustproof cleaning effect is excellent, the sanitation and reliability of a user during oxygen inhalation are ensured, the size of the dustproof cover is similar to the size of a beverage bottle cap, and the dustproof cover cannot be lost easily; secondly, through setting up a plurality of perpendicular sand grips and a plurality of perpendicular card reason inside the respirator, when portable oxygen respirator is in the laying state, the whole oxygen tank body that can firmly combine of respirator, the respirator can not drop easily when the guarantee user carries, and when taking off the whole oxygen tank body of follow of respirator, the user need not hard and lightly swiftly to operate, the comfortable convenience of use, and when portable oxygen respirator is in the oxygen uptake state, the user grips the oxygen tank body through the one hand and just can effectively the oxygen uptake according to extrusion oxygen piece with the finger, the travelling comfort of use has been embodied.

Drawings

Fig. 1 is a schematic structural view of the present invention in a mounted state.

Fig. 2 is a schematic structural view of the oxygen-absorbing device of the present invention.

Fig. 3 is a schematic structural view of a respiratory mask and a dust cover in the present invention.

Fig. 4 is a schematic structural view of the oxygen outlet member of the present invention.

Fig. 5 is a bottom view of the oxygen delivery member of fig. 4.

In the figure: 1. an oxygen tank body, 11, a tank body conical part, 12, an air valve and 13, an oxygen tank body assembly edge; 2. the oxygen outlet piece, 21, the oxygen outlet mounting sleeve, 211, the friction strip of the oxygen outlet mounting sleeve, 22, the plug pipe, 23, the oxygen supply pipe, 24, the reinforcing fixing part and 25, the reinforcing rib; 3. the breathing mask comprises a breathing mask body 31, an oxygen outlet connecting part 311, a connecting pipe 311, a gas exchange section 312, a 3121 vent hole 313, a positioning section 32, an adapting part 321, a face fitting section 3211, a nose bridge matching part 3212, an arc part 322, a conical middle section 3221, a vertical clamping edge 323, a transition section 324, an assembling step 3241, a vertical convex strip 33, a limiting step 4, a dust cover 41 and an anti-slip strip 41.

Detailed Description

In order to clearly understand the technical spirit and the advantages of the present invention, the following detailed description is given by way of examples, but the description of the examples is not intended to limit the scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in substance, should be considered as the 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 in the position state of the drawings being described, and thus, should not be construed as particularly limiting the technical solution provided by the present invention.

Referring to fig. 1 and 2, a portable oxygen respirator is shown, which comprises an oxygen tank 1 filled with oxygen, an oxygen outlet 2 and a breathing mask 3, wherein a tank conical part 11 which is gradually contracted from bottom to top is formed at the top of the oxygen tank 1, a gas valve 12 is arranged at the center of the top end surface of the tank conical part 11, the oxygen outlet 2 is mounted on the gas valve 12, and the oxygen outlet 2 can discharge the oxygen in the oxygen tank 1 through the gas valve 12 to supply oxygen to a user; the breathing mask 3 is of an integrally formed structure and is hollow inside, the breathing mask 3 includes an oxygen outlet connecting portion 31 and an adapting portion 32, a limiting step 33 is formed at the connecting portion of the oxygen outlet connecting portion 31 and the adapting portion 32, a connecting pipe 311 is formed at the central position of the end face of the end of the oxygen outlet connecting portion 31 far away from the limiting step 33 and faces the hollow cavity of the breathing mask 3, the connecting pipe 311 is communicated with the hollow cavity inside the breathing mask 3, and the adapting portion 32 is formed with an opening adapted to the shape of the oxygen canister body 1.

The technical key points of the technical scheme provided by the utility model are as follows: referring to fig. 1 and 2 in combination with fig. 3, a dust cover 4 is detachably mounted and sleeved on the limit step 33 of the breathing mask 3, the dust cover 4 is cylindrical and has an open end in the length direction, the dust cover 4 is hollow inside and the hollow cavity is adapted to the oxygen outlet connection portion 31, so that the dust cover 4 and the oxygen outlet connection portion 31 can be mounted together in a matching manner.

In this embodiment, the portable oxygen respirator has a placement state and an oxygen inhalation state, when the portable oxygen respirator is in the placement state, the adaptation part 32 of the breathing mask 3 is positioned and sleeved on the upper part of the oxygen tank body 1, the oxygen outlet piece 2 is arranged inside the breathing mask 3, the dust cover 4 is matched and installed with the oxygen outlet connection part 31 together and positioned on the limit step 33, the dust cover 4 can realize the sealing protection of the oxygen outlet connection part 31, and the whole carrying can be conveniently realized; when the portable oxygen respirator is in an oxygen inhalation state, the dust cover 4 is detached from the oxygen outlet connection part 31 and is not assembled with the oxygen outlet connection part 31, the connection pipe 311 on the oxygen outlet connection part 31 is connected with the oxygen outlet piece 2, the adaptation part 32 of the breathing mask 3 is attached to the face of the user so that the user can perform an oxygen inhalation operation, and oxygen in the oxygen tank 1 enters the breathing mask 3 from the oxygen outlet piece 2 through the gas valve 12, so that the user can inhale oxygen through the breathing mask 3.

In this embodiment, a plurality of anti-slip strips 41 are formed on the outer peripheral surface of the dust cover 4 at intervals, and the anti-slip strips 41 are provided to facilitate the user to remove the dust cover 4 from the oxygen outlet connecting portion 31 of the breathing mask 3 or to attach the dust cover 4 to the oxygen outlet connecting portion 31.

Referring to fig. 1 and 2 and fig. 4 and 5, the oxygen outlet member 2 includes an oxygen outlet mounting sleeve 21 having a hollow interior and an open bottom, an insertion tube 22 formed at a central position inside the oxygen outlet mounting sleeve 21 and extending in a vertical direction, the gas valve 12 of the oxygen tank 1 passes through the opening of the oxygen outlet mounting sleeve 21 and is inserted into the insertion tube 22, the insertion tube 22 is further connected with an oxygen supply tube 23 extending in a horizontal direction, the oxygen supply tube 23 is communicated with the insertion tube 22, the oxygen supply tube 23 extends from the insertion tube 22 and passes through a side wall of the oxygen outlet mounting sleeve 21, the oxygen supply tube 23 is adapted to a lumen shape of the connecting tube 311 of the oxygen outlet connecting portion 31, and the oxygen supply tube 23 can be installed in a lumen of the connecting tube 311 in a matching manner.

Further, a reinforcing fixing portion 24 is further disposed between the outer circumferential surface of the insertion tube 22 and the inner cavity wall of the hollow cavity inside the oxygen outlet mounting sleeve 21, the reinforcing fixing portion 24 is formed at a position corresponding to the oxygen feeding tube 23, the width of the reinforcing fixing portion 24 is greater than the diameter of the insertion tube 22, a through hole through which the oxygen feeding tube 23 can pass is formed in the reinforcing fixing portion 24, and a plurality of reinforcing ribs 25 are further disposed between the outer circumferential surface of the insertion tube 22 of the oxygen outlet member 2 and the inner cavity wall of the hollow cavity inside the oxygen outlet mounting sleeve 21, as shown in fig. 5, the number of the reinforcing ribs 25 is one in the present embodiment, and the reinforcing ribs 25 can effectively ensure the overall strength of the oxygen outlet member 2 and prevent the oxygen outlet member from being damaged and deformed after being used for a long time.

In this embodiment, the distal end surface of the oxygen outlet fitting sleeve 21 of the oxygen outlet member 2 has a circular arc surface structure with two convex sides and a concave middle, and a plurality of oxygen outlet fitting sleeve friction strips 211 are formed on the distal end surface of the oxygen outlet fitting sleeve 21 in a protruding manner. And aforesaid pneumatic valve 12 is the push type pneumatic valve, whether this pneumatic valve 12 can the interior oxygen of the effective control oxygen jar body 1 outwards flow, and the user can make pneumatic valve 12 work through pressing the top terminal surface of aforesaid oxygen installation cover 21, oxygen just can enter into in the oxygen piece 2 from the oxygen jar body 1, and the setting of the arcwall face on oxygen installation cover 21 top can the person of facilitating the use press the operation, go out oxygen installation cover friction bar 211 and then can play good anti-skidding effect and also convenient to use person and press.

With reference to fig. 1 and fig. 2 in combination with fig. 3, the oxygen outlet connecting portion 31 of the breathing mask 3 includes a ventilation section 312 and a positioning section 313, both of which have hollow interiors, the ventilation section 312 is formed on the position-limiting step 33, the positioning section 313 is formed at a position of the ventilation section 312 away from the position-limiting step 33, the ventilation section 312 and the positioning section 313 can be matched with the dust cover 4, the connecting pipe 311 is formed at a middle position of an inner cavity of the positioning section 313, a plurality of vent holes 3121 penetrating through a thickness direction of the ventilation section 312 are formed on a side surface of the ventilation section 312, and the plurality of vent holes 3121 are convenient for a user to perform ventilation operation during oxygen inhalation, so as to achieve good comfort.

Furthermore, the fitting part 32 of the breathing mask 3 comprises a face-fitting section 321, a tapered middle section 322 and a transition section 323, the transition section 323 is formed at a position close to the oxygen outlet connecting part 31 and connected with the limiting step 33, the tapered middle section 322 is formed at a position of one side of the transition section 323 away from the oxygen outlet connecting part 31, the face-engaging portion 321 is formed on a side of the tapered middle portion 322 away from the transition portion 323, the tapered middle portion 322 is formed between the transition portion 323 and the face-engaging portion 321 and gradually expands from the transition portion 323 to the face-engaging portion 321, and the radial diameter of the conical middle section 322 axially connected to one end of the transition section 323 is smaller than the radial diameter thereof connected to the other end of the face engaging section 321, the face attaching section 321 is a circular ring structure and the face attaching section 321 can attach to the face of the user.

In this embodiment, a ring of assembling steps 324 is formed at the connection position of the face attaching section 321 and the tapered middle section 322, a plurality of vertical protrusions 3241 are formed on the inner sidewall of the assembling steps 324 at intervals along the circumferential direction, the lower portions of the plurality of vertical protrusions 3241 are connected to the inner sidewall of the face attaching section 321, the upper portions of the plurality of vertical protrusions 3241 are connected to the inner sidewall of the tapered middle section 322, a plurality of vertical locking edges 3221 are formed on the inner sidewall of the tapered middle section 322 at intervals along the circumferential direction of the assembling steps 324 at a position close to the assembling steps 324, a ring of oxygen tank assembling edge 13 is formed on the upper portion of the oxygen tank 1 at a position corresponding to the lower portion of the tank tapered portion 11, the oxygen tank assembling edge 13 can be mutually fitted and installed with the plurality of vertical protrusions 3241, when the portable oxygen respirator is in the mounting state, a plurality of aforementioned vertical card reason 3221 location are installed on the top terminal surface of this oxygen cylinder body assembly limit 13, and the setting of aforementioned a plurality of vertical sand grip 3241 and a plurality of vertical card reason 3221 can guarantee the whole fastness of combining with the installation of the oxygen cylinder body 1 of breathing mask 3, guarantee when portable oxygen respirator is in laying state user and carries that breathing mask 3 wholly can not drop easily with the firm combination of two of the oxygen cylinder body 1, and when taking off breathing mask 3 wholly from the oxygen cylinder body 1, the user need not hard can light swiftly operate, guarantee the travelling comfort of use.

Further, a nose bridge matching portion 3211 capable of being mutually matched with the skin at the nose bridge portion and the two side faces of the nose bridge is formed on the face attaching section 321, as shown in fig. 2, the nose bridge matching portion 321 is located at the upper portion of the face attaching section 321, an arc portion 3212 capable of being mutually matched with the lower portion of the lips of the face of the human body is further formed on the face attaching section 321, as shown in fig. 2, the arc portion 3212 is located at the lower portion of the face attaching section 321 and is right under the nose bridge matching portion 3211, so that the face attaching section 321 can be perfectly matched with the face of a user, and oxygen is prevented from overflowing from the edge of the arc-shaped mask 3 to ensure the best oxygen inhalation effect.

Preferably, the whole of the breathing mask 3 is made of transparent plastic by integral molding.

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

1. A portable oxygen respirator comprises an oxygen tank body (1) filled with oxygen, an oxygen outlet part (2) and a breathing mask (3), wherein a tank body conical part (11) which is gradually contracted from bottom to top is formed at the top of the oxygen tank body (1), an air valve (12) is arranged at the central position of the top end face of the tank body conical part (11), the oxygen outlet part (2) is installed on the air valve (12), the breathing mask (3) is of an integrally formed structure and is hollow inside, the breathing mask (3) comprises an oxygen outlet connecting part (31) and an adapting part (32), a limiting step (33) is formed at the connecting part of the oxygen outlet connecting part (31) and the adapting part (32), and a connecting pipe (311) is formed at the central position of one end face of the oxygen outlet connecting part (31) far away from the limiting step (33) towards the hollow cavity of the breathing mask (3), the connecting pipe (311) is communicated with the hollow cavity in the breathing mask (3), and the adaptation part (32) is provided with an opening matched with the shape of the oxygen tank body (1), the connection pipe is characterized in that a dust cover (4) is detachably sleeved on the limiting step (33) of the breathing mask (3), the dust cover (4) is of a cylindrical structure, one end of the dust cover in the length direction is arranged in an open mode, the dust cover (4) is hollow, the hollow cavity is matched with the oxygen outlet connecting part (31), so that the dust cover (4) can be matched and installed with the oxygen outlet connecting part (31), the portable oxygen respirator is provided with a placing state and an oxygen absorbing state, when the dust cover is placed in the placing state, the adaptation part (32) of the breathing mask (3) is positioned and sleeved on the upper part of the oxygen tank body (1) and the oxygen outlet part (2) is arranged in the breathing mask (3), the dust cover (4) and the oxygen outlet connecting part (31) are installed together in a matched mode and are positioned on the limiting step (33), when the portable oxygen respirator is in an oxygen inhalation state, the dust cover (4) is detached from the oxygen outlet connecting part (31) and is not assembled with the oxygen outlet connecting part (31), a connecting pipe (311) on the oxygen outlet connecting part (31) is connected with the oxygen outlet piece (2), and the adapting part (32) of the breathing mask (3) is attached to the face of a user so that the user can carry out oxygen inhalation operation.

2. The portable oxygen respirator of claim 1, wherein a plurality of anti-slip strips (41) are formed on the peripheral side surface of the dust cover (4) at intervals in a protruding manner.

3. The portable oxygen respirator of claim 1, wherein the oxygen outlet member (2) comprises an oxygen outlet mounting sleeve (21) which is hollow inside and has an open bottom, an insertion tube (22) which extends in a vertical direction is formed at a central position inside the oxygen outlet mounting sleeve (21), the gas valve (12) of the oxygen tank body (1) passes through the opening of the oxygen outlet mounting sleeve (21) and is inserted into the insertion tube (22), the insertion tube (22) is further connected with an oxygen supply tube (23) which extends in a horizontal direction, the oxygen supply tube (23) is communicated with the insertion tube (22), the oxygen supply tube (23) extends outwards from the insertion tube (22) and passes through a side wall of the oxygen outlet mounting sleeve (21), and the oxygen supply tube (23) is adapted to the shape of a tube cavity of the connecting tube (311) of the oxygen outlet connecting portion (31), the oxygen supply tube (23) can be fitted into the lumen of the connection tube (311).

4. The portable oxygen respirator of claim 3, wherein a reinforcing fixing part (24) is further disposed between the outer circumferential surface of the insertion tube (22) and the inner cavity wall of the hollow cavity inside the oxygen outlet mounting sleeve (21), the reinforcing fixing part (24) is formed at a position corresponding to the oxygen delivery tube (23), the width of the reinforcing fixing part (24) is larger than the tube diameter of the insertion tube (22), a through hole capable of allowing the oxygen delivery tube (23) to pass through is formed in the reinforcing fixing part (24), and a plurality of reinforcing ribs (25) are further disposed between the outer circumferential surface of the insertion tube (22) of the oxygen outlet member (2) and the inner cavity wall of the hollow cavity inside the oxygen outlet mounting sleeve (21).

5. The portable oxygen respirator according to claim 3, wherein the top end face of the oxygen outlet mounting sleeve (21) of the oxygen outlet member (2) is of a circular arc surface structure with two convex sides and a concave middle part, and a plurality of oxygen outlet mounting sleeve friction strips (211) are convexly arranged on the top end face of the oxygen outlet mounting sleeve (21).

6. The portable oxygen respirator according to claim 1, wherein the oxygen outlet connection portion (31) of the breathing mask (3) comprises a ventilation section (312) and a positioning section (313) both having a hollow structure, the ventilation section (312) is formed on the position-limiting step (33), the positioning section (313) is formed on a side of the ventilation section (312) away from the position-limiting step (33), the ventilation section (312) and the positioning section (313) are both capable of being matched with the dust cover (4), the connection pipe (311) is formed in a middle position of an inner cavity of the positioning section (313), and a plurality of ventilation holes (3121) penetrating through a thickness direction of the ventilation section (312) are formed on a side surface of the ventilation section (312).

7. A portable oxygen respirator according to claim 6, wherein the fitting part (32) of the breathing mask (3) comprises a face engaging portion (321), a tapered middle portion (322) and a transition portion (323), the transition portion (323) is formed near the oxygen outlet connection (31) and connected to the position of the stopping step (33), the tapered middle portion (322) is formed at a side of the transition portion (323) away from the oxygen outlet connection (31), the face engaging portion (321) is formed at a side of the tapered middle portion (322) away from the transition portion (323), the tapered middle portion (322) is formed between the transition portion (323) and the face engaging portion (321) and gradually expands from the transition portion (323) toward the face engaging portion (321), i.e. the radial diameter of the tapered middle portion (322) axially connected to one end of the transition portion (323) is smaller than the radial diameter of the transition portion (323) connected to the same The diameter of the other end of the face attaching section (321) is connected, the face attaching section (321) is of a circular ring structure, and the face attaching section (321) can be attached to the face of a user.

8. A portable oxygen respirator according to claim 7, wherein a ring of fitting step (324) is formed at the junction of the face-engaging section (321) and the conical middle section (322), and a plurality of vertical ribs (3241) are formed on the inner side wall of the fitting step (324) at intervals in the circumferential direction thereof, and the lower portion of the plurality of vertical ribs (3241) is connected to the inner side wall of the face-engaging section (321) while the upper portion of the plurality of vertical ribs (3241) is connected to the inner side wall of the conical middle section (322), and a plurality of vertical beads (3221) are formed on the inner side wall of the conical middle section (322) at intervals in the circumferential direction around the fitting step (324) at a position close to the fitting step (324), and a ring of oxygen tank fitting bead (13) is formed on the upper portion of the oxygen tank (1) at a position corresponding to the lower portion of the conical portion (11) of the tank, the oxygen tank body assembling edge (13) can be matched and installed with the plurality of vertical protruding strips (3241) together, and when the portable oxygen respirator is in a placing state, the plurality of vertical clamping edges (3221) are positioned and installed on the top end face of the oxygen tank body assembling edge (13).

9. The portable oxygen respirator of claim 7, wherein the face-engaging portion (321) has a nose bridge engaging portion (3211) for engaging with the nose bridge and the skin on both sides of the nose bridge, and the face-engaging portion (321) has an arc portion (3212) for engaging with the lower portion of the lips.

10. A portable oxygen respirator according to claim 1, wherein the breathing mask (3) is integrally formed of transparent plastic.