CN216603727U

CN216603727U - Department of anesthesia is with disposable oxygen therapy face guard

Info

Publication number: CN216603727U
Application number: CN202122075622.9U
Authority: CN
Inventors: 付尧
Original assignee: Affiliated Hospital of Southwest Medical University
Current assignee: Affiliated Hospital of Southwest Medical University
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-05-27
Anticipated expiration: 2031-08-31

Abstract

The utility model relates to the technical field of medical equipment, in particular to a disposable oxygen therapy mask for anesthesia department, which comprises a mask body, a connecting pipe and a transition pipe, wherein the front side of the mask body is integrally and fixedly connected with the connecting port pipe, the periphery of the back side of the mask body is fixedly provided with an air cushion ring, and the mask body is fixedly connected with an elastic band; one end of the connecting pipe is rotatably connected with the connecting port pipe, a first internal thread is arranged on the inner wall of the other end of the connecting pipe, a first external thread is arranged on the outer wall of one end of the transition pipe, the connecting pipe is connected with the transition pipe through the threaded connection of the first internal thread and the first external thread, and the other end of the transition pipe is a splicing end. The beneficial effects of the utility model are: when the oxygen hose is installed, the transition pipe and the connecting pipe are connected firstly or the connecting pipe and the connecting port pipe are connected firstly, the transition pipe does not need to rotate in the subsequent installation process, so that the rotation of the oxygen hose is avoided, and the installation is convenient.

Description

Department of anesthesia is with disposable oxygen therapy face guard

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a disposable oxygen mask for an anesthesia department.

Background

The anesthesia discipline is a comprehensive discipline that contains knowledge of multiple disciplines. The application range is wider at present, not only meets the requirements of operations, but also participates in rescue work of various departments and painless diagnosis and treatment work, including painless childbirth, painless abortion, painless gastroscopy, painless invasive examination and the like. The existing disposable oxygen therapy mask is disposable, so most of the mask body and the oxygen therapy hose are connected in a direct inserting mode, and the defect that the connection is unstable and the mask is easy to fall off is overcome. The prior disposable oxygen therapy mask connected through an intermediate connecting pipe is also available in the market, one end of the intermediate connecting pipe is screwed with the mask body through threads, and the other end of the intermediate connecting pipe is connected with an oxygen therapy hose in a plugging way, but the problem still exists; on the other hand, if the intermediate connecting pipe is screwed with the mask body and then inserted into the oxygen hose, the method is not different from the conventional direct inserting mode, the inserting is inconvenient, the mask body is easy to deform to influence the use due to too much force, and the inserting is unstable due to too little force.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a disposable oxygen mask for an anesthesia department, which solves the problems in the prior art.

The technical scheme for solving the technical problems is as follows: a disposable oxygen therapy mask for anesthesia department comprises a mask body, a connecting pipe and a transition pipe, wherein the front side of the mask body is integrally and fixedly connected with the connecting port pipe, an air cushion ring is fixedly arranged on the periphery of the back side of the mask body, an adjusting valve communicated with the inside of the air cushion ring is arranged on the air cushion ring, and an elastic band is fixedly connected to the mask body; one end of the connecting pipe is rotatably connected with the connecting port pipe, a first internal thread is arranged on the inner wall of the other end of the connecting pipe, a first external thread is arranged on the outer wall of one end of the transition pipe, the connecting pipe is connected with the transition pipe through the threaded connection of the first internal thread and the first external thread, and the other end of the transition pipe is a splicing end.

The utility model has the beneficial effects that: the connecting pipe is connected with the transition pipe through threads, the connecting pipe is connected with the connecting port pipe through rotation, when the oxygen hose is installed, the transition pipe and the connecting pipe are connected firstly or the connecting pipe and the connecting port pipe are connected firstly, the transition pipe does not need to rotate in the subsequent installation process, and therefore rotation of the oxygen hose is avoided, and installation is convenient.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, be equipped with first ring channel on the outer wall of connecting port pipe, the connecting pipe is kept away from be equipped with on the inner wall of the one end of transition pipe with the first bulge loop that first ring channel matches, first bulge loop joint is in the first ring channel, just first bulge loop with first ring channel rotates to be connected.

The beneficial effect of adopting the further scheme is that: the connection port pipe and the connection pipe are clamped and rotationally connected through the first annular groove and the first convex ring, so that the mask body cannot rotate in the process of rotating the connection pipe, and the connection with the transition pipe is facilitated; similarly, if threaded connection transition pipe and connecting pipe earlier, only need the joint can when connecting pipe and connection port pipe, can not lead to the transition pipe to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

Further, be equipped with the second bulge loop on the outer wall of connection port pipe, the connecting pipe is kept away from be equipped with on the inner wall of the one end of transition pipe with the second ring channel that the second bulge loop matches, the second bulge loop joint is in the second ring channel, just the second bulge loop with the second ring channel rotates to be connected.

The beneficial effect of adopting the further scheme is that: the connection port pipe and the connection pipe are clamped and rotationally connected through the second annular groove and the second convex ring, the mask body cannot rotate in the process of rotating the connection pipe, and the mask body is conveniently connected with the transition pipe; similarly, if threaded connection transition pipe and connecting pipe earlier, only need the joint can when connecting pipe and connection port pipe, can not lead to the transition pipe to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

Further, be equipped with the second external screw thread on the outer wall of connection port end, the connecting pipe is connected be equipped with the second internal thread on the inner wall of the one end of connection port pipe, first internal thread with the internal thread opposite direction of second, the connecting pipe passes through the threaded connection realization of second internal thread and second external screw thread and is connected with the connection port pipe.

The beneficial effect of adopting the further scheme is that: through set up on the inner wall at the connecting pipe other end with first internal thread screw thread opposite direction's second internal thread, when the installation, only need rotate the connecting pipe, transition pipe and connection port pipe do not need to rotate and can move in opposite directions and realize the installation.

Furthermore, an annular sealing check ring is arranged on the inner wall of the middle part of the connecting pipe, and the end part of the connecting port pipe and the end part of the transition pipe are respectively abutted against two sides of the annular sealing check ring.

The beneficial effect of adopting the further scheme is that: the arrangement of the annular sealing retainer ring improves the sealing performance of the connection between the connecting pipe and the transition pipe and between the connecting port pipes.

Further, be equipped with the third ring channel on the inner wall of connection port pipe, the connecting pipe is kept away from be equipped with on the outer wall of the one end of transition pipe with the third bulge loop that the third ring channel matches, the third bulge loop joint is in the third ring channel, just the third bulge loop with the third ring channel rotates to be connected.

The beneficial effect of adopting the further scheme is that: the connection port pipe and the connection pipe are clamped and rotationally connected through the third annular groove and the third convex ring, so that the mask body cannot rotate in the process of rotating the connection pipe, and the connection with the transition pipe is facilitated; similarly, if threaded connection transition pipe and connecting pipe earlier, only need the joint can when connecting pipe and connection port pipe, can not lead to the transition pipe to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

Further, be equipped with the fourth bulge loop on the inner wall of connecting port pipe, the connecting pipe is kept away from be equipped with on the outer wall of the one end of transition pipe with the fourth bulge loop assorted fourth annular groove, the fourth bulge loop joint is in the fourth annular groove, just the fourth bulge loop with fourth annular groove rotates to be connected.

The beneficial effect of adopting the further scheme is that: the connection port pipe and the connection pipe are clamped and rotationally connected through the fourth annular groove and the fourth convex ring, so that the mask body cannot rotate in the process of rotating the connection pipe, and the connection with the transition pipe is facilitated; similarly, if threaded connection transition pipe and connecting pipe earlier, only need the joint can when connecting pipe and connection port pipe, can not lead to the transition pipe to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

Further, be equipped with the third internal thread on the inner wall of connection port end, the connecting pipe is connected be equipped with the third external screw thread on the outer wall of the one end of connection port pipe, first internal thread with the threaded direction of third internal thread is the same, the connecting pipe passes through the threaded connection realization of third internal thread and third external screw thread and is connected with the connection port pipe.

The beneficial effect of adopting the further scheme is that: through set up the third internal thread that is the same with first internal thread screw thread direction on the inner wall at connection port pipe, when the installation, only need rotate the connecting pipe, transition pipe and connection port pipe need not rotate and can move realization installation in opposite directions.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic connection diagram of a connection pipe, a connection port pipe and a transition pipe according to a first embodiment of the present invention;

FIG. 3 is a schematic connection diagram of a connection pipe, a connection port pipe and a transition pipe according to a second embodiment of the present invention;

FIG. 4 is a schematic view of the connection of a connection pipe, a connection port pipe and a transition pipe according to a third embodiment of the present invention;

FIG. 5 is a schematic view of the connection of a connection tube, a connection port tube and a transition tube according to a fourth embodiment of the present invention;

FIG. 6 is a schematic connection diagram of a connection pipe, a connection port pipe and a transition pipe according to a fifth embodiment of the present invention;

FIG. 7 is a schematic connection diagram of a connection pipe, a connection port pipe and a transition pipe according to a sixth embodiment of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a mask body; 2. a connecting pipe; 3. a transition duct; 4. connecting the port pipe; 5. an air cushion ring; 6. adjusting a valve; 7. elastic bands; 8. a first internal thread; 9. a first external thread; 10. a plug end; 11. a first annular groove; 12. a first convex ring; 13. a second convex ring; 14. a second annular groove; 15. a second external thread; 16. a second internal thread; 17. an annular sealing retainer ring; 18. a third annular groove; 19. a third convex ring; 20. a fourth convex ring; 21. a fourth annular groove; 22. a third internal thread; 23. a third external thread.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

Example one

As shown in fig. 1 and fig. 2, the present embodiment includes a mask body 1, a connection pipe 2 and a transition pipe 3, a connection port pipe 4 is fixedly connected to the front of the mask body 1 integrally, an air cushion ring 5 is fixedly arranged on the periphery of the back of the mask body 1, an adjustment valve 6 communicated with the inside of the air cushion ring 5 is arranged on the air cushion ring 5, and an elastic band 7 is fixedly connected to the mask body 1; one end of the connecting pipe 2 is rotatably connected with the connecting port pipe 4, a first internal thread 8 is arranged on the inner wall of the other end of the connecting pipe 2, a first external thread 9 is arranged on the outer wall of one end of the transition pipe 3, the connecting pipe 2 is connected with the transition pipe 3 through the threaded connection of the first internal thread 8 and the first external thread 9, and the other end of the transition pipe 3 is a plug-in end 10.

In this embodiment, a first annular groove 11 is formed in the outer wall of the connection port pipe 4, a first convex ring 12 matched with the first annular groove 11 is formed in the inner wall of one end, away from the transition pipe 3, of the connection pipe 2, the first convex ring 12 is clamped in the first annular groove 11, the first convex ring 12 is rotatably connected with the first annular groove 11, the connection port pipe 4 and the connection pipe 2 are clamped and rotatably connected through the first annular groove 11 and the first convex ring 12, the rotation of the mask body 1 cannot be caused in the process of rotating the connection pipe 2, and the connection with the transition pipe 3 is facilitated; similarly, if threaded connection transition pipe 3 and connecting pipe 2 earlier, only need the joint can when connecting pipe 2 and connecting port pipe 4, can not lead to transition pipe 3 to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

Preferably, an annular sealing retainer ring 17 is arranged on the inner wall of the middle part of the connecting pipe 2, the end part of the connecting port pipe 4 and the end part of the transition pipe 3 are respectively abutted to two sides of the annular sealing retainer ring 17, and the arrangement of the annular sealing retainer ring 17 improves the sealing performance of the connecting pipe 2, the transition pipe 3 and the connecting port pipe 4.

Example two

As shown in fig. 1 and 3, the present embodiment includes a mask body 1, a connecting pipe 2 and a transition pipe 3, wherein a connecting port pipe 4 is integrally and fixedly connected to the front surface of the mask body 1, an air cushion ring 5 is fixedly arranged on the periphery of the back surface of the mask body 1, an adjusting valve 6 communicated with the inside of the air cushion ring 5 is arranged on the air cushion ring 5, and an elastic band 7 is fixedly connected to the mask body 1; one end of the connecting pipe 2 is rotatably connected with the connecting port pipe 4, a first internal thread 8 is arranged on the inner wall of the other end of the connecting pipe 2, a first external thread 9 is arranged on the outer wall of one end of the transition pipe 3, the connecting pipe 2 is connected with the transition pipe 3 through the threaded connection of the first internal thread 8 and the first external thread 9, and the other end of the transition pipe 3 is a plug-in end 10.

In this embodiment, a second convex ring 13 is arranged on the outer wall of the connection port pipe 4, a second annular groove 14 matched with the second convex ring 13 is arranged on the inner wall of one end of the connection pipe 2 far away from the transition pipe 3, the second convex ring 13 is clamped in the second annular groove 14, the second convex ring 13 is rotatably connected with the second annular groove 14, the connection port pipe 4 and the connection pipe 2 are clamped and rotatably connected through the second annular groove 14 and the second convex ring 13, the rotation of the mask body 1 cannot be caused in the process of rotating the connection pipe 2, and the connection with the transition pipe 3 is facilitated; similarly, if threaded connection transition pipe 3 and connecting pipe 2 earlier, only need the joint can when connecting pipe 2 and connecting port pipe 4, can not lead to transition pipe 3 to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

EXAMPLE III

As shown in fig. 4, the present embodiment includes a mask body 1, a connecting pipe 2 and a transition pipe 3, wherein a connecting port pipe 4 is integrally and fixedly connected to the front surface of the mask body 1, an air cushion ring 5 is fixedly arranged on the periphery of the back surface of the mask body 1, an adjusting valve 6 communicated with the inside of the air cushion ring 5 is arranged on the air cushion ring 5, and an elastic band 7 is fixedly connected to the mask body 1; one end of the connecting pipe 2 is rotatably connected with the connecting port pipe 4, a first internal thread 8 is arranged on the inner wall of the other end of the connecting pipe 2, a first external thread 9 is arranged on the outer wall of one end of the transition pipe 3, the connecting pipe 2 is connected with the transition pipe 3 through the threaded connection of the first internal thread 8 and the first external thread 9, and the other end of the transition pipe 3 is a plug-in end 10.

In this embodiment, be equipped with second external screw thread 15 on the outer wall of connection port end, connecting pipe 2 is connected be equipped with second internal thread 16 on the inner wall of the one end of connection port pipe 4, first internal thread 8 with the screw thread opposite direction of second internal thread 16, connecting pipe 2 realizes being connected with connection port pipe 4 through the threaded connection of second internal thread 16 with second external screw thread 15, through set up second internal thread 16 opposite with first internal thread 8 screw thread direction on the inner wall of the connecting pipe 2 other end, when the installation, only need rotate connecting pipe 2, transition pipe 3 and connection port pipe 4 need not rotate and can move realization installation in opposite directions.

Example four

As shown in fig. 5, the present embodiment includes a mask body 1, a connecting pipe 2 and a transition pipe 3, wherein a connecting port pipe 4 is integrally and fixedly connected to the front surface of the mask body 1, an air cushion ring 5 is fixedly arranged on the periphery of the back surface of the mask body 1, an adjusting valve 6 communicated with the inside of the air cushion ring 5 is arranged on the air cushion ring 5, and an elastic band 7 is fixedly connected to the mask body 1; one end of the connecting pipe 2 is rotatably connected with the connecting port pipe 4, a first internal thread 8 is arranged on the inner wall of the other end of the connecting pipe 2, a first external thread 9 is arranged on the outer wall of one end of the transition pipe 3, the connecting pipe 2 is connected with the transition pipe 3 through the threaded connection of the first internal thread 8 and the first external thread 9, and the other end of the transition pipe 3 is a splicing end 10.

In this embodiment, a third annular groove 18 is formed in the inner wall of the connection port pipe 4, a third protruding ring 19 matched with the third annular groove 18 is formed in the outer wall of the end, far away from the transition pipe 3, of the connection pipe 2, the third protruding ring 19 is clamped in the third annular groove 18, the third protruding ring 19 is rotatably connected with the third annular groove 18, the connection port pipe 4 and the connection pipe 2 are clamped and rotatably connected through the third annular groove 18 and the third protruding ring 19, the rotation of the mask body 1 cannot be caused in the process of rotating the connection pipe 2, and the connection with the transition pipe 3 is facilitated; similarly, if threaded connection transition pipe 3 and connecting pipe 2 earlier, only need the joint can when connecting pipe 2 and connecting port pipe 4, can not lead to transition pipe 3 to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

EXAMPLE five

As shown in fig. 6, the present embodiment includes a mask body 1, a connecting pipe 2 and a transition pipe 3, wherein a connecting port pipe 4 is integrally and fixedly connected to the front surface of the mask body 1, an air cushion ring 5 is fixedly arranged on the periphery of the back surface of the mask body 1, an adjusting valve 6 communicated with the inside of the air cushion ring 5 is arranged on the air cushion ring 5, and an elastic band 7 is fixedly connected to the mask body 1; one end of the connecting pipe 2 is rotatably connected with the connecting port pipe 4, a first internal thread 8 is arranged on the inner wall of the other end of the connecting pipe 2, a first external thread 9 is arranged on the outer wall of one end of the transition pipe 3, the connecting pipe 2 is connected with the transition pipe 3 through the threaded connection of the first internal thread 8 and the first external thread 9, and the other end of the transition pipe 3 is a plug-in end 10.

In this embodiment, a fourth convex ring 20 is arranged on the inner wall of the connection port pipe 4, a fourth annular groove 21 matched with the fourth convex ring 20 is arranged on the outer wall of one end of the connection pipe 2 far away from the transition pipe 3, the fourth convex ring 20 is clamped in the fourth annular groove 21, the fourth convex ring 20 is rotatably connected with the fourth annular groove 21, the connection port pipe 4 and the connection pipe 2 are clamped and rotatably connected through the fourth annular groove 21 and the fourth convex ring 20, the rotation of the mask body 1 cannot be caused in the process of rotating the connection pipe 2, and the connection with the transition pipe 3 is facilitated; similarly, if threaded connection transition pipe 3 and connecting pipe 2 earlier, only need the joint can when connecting pipe 2 and connecting port pipe 4, can not lead to transition pipe 3 to rotate to avoid the rotation at the in-process oxygen therapy hose of installation.

EXAMPLE six

As shown in fig. 7, the present embodiment includes a mask body 1, a connecting pipe 2 and a transition pipe 3, wherein a connecting port pipe 4 is integrally and fixedly connected to the front surface of the mask body 1, an air cushion ring 5 is fixedly arranged on the periphery of the back surface of the mask body 1, an adjusting valve 6 communicated with the inside of the air cushion ring 5 is arranged on the air cushion ring 5, and an elastic band 7 is fixedly connected to the mask body 1; one end of the connecting pipe 2 is rotatably connected with the connecting port pipe 4, a first internal thread 8 is arranged on the inner wall of the other end of the connecting pipe 2, a first external thread 9 is arranged on the outer wall of one end of the transition pipe 3, the connecting pipe 2 is connected with the transition pipe 3 through the threaded connection of the first internal thread 8 and the first external thread 9, and the other end of the transition pipe 3 is a plug-in end 10.

In this embodiment, be equipped with third internal thread 22 on the inner wall of connection port end, connecting pipe 2 is connected be equipped with third external screw thread 23 on the outer wall of the one end of connection port pipe 4, first internal thread 8 with third internal thread 22's screw thread direction is the same, connecting pipe 2 realizes being connected with connection port pipe 4 through the threaded connection of third internal thread 22 with third external screw thread 23, through set up the third internal thread 22 the same with 8 screw thread directions of first internal thread on the inner wall of connection port pipe 4, when the installation, only need rotate connecting pipe 2, transition pipe 3 and connection port pipe 4 need not rotate and can move in opposite directions and realize the installation.

According to the utility model, the connecting pipe 2 and the transition pipe 3 are connected through threads, the connecting pipe 2 and the connecting port pipe 4 are connected through rotation, and when the oxygen therapy hose is installed, no matter the transition pipe 3 and the connecting pipe 2 are connected firstly or the connecting pipe 2 and the connecting port pipe 4 are connected firstly, the transition pipe 3 does not need to rotate in the subsequent installation process, so that the rotation of the oxygen therapy hose is avoided, and the installation is convenient.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A disposable oxygen therapy mask for anesthesia department is characterized by comprising a mask body (1), a connecting pipe (2) and a transition pipe (3), wherein the front of the mask body (1) is integrally and fixedly connected with the connecting port pipe (4), the periphery of the back of the mask body (1) is fixedly provided with an air cushion ring (5), the air cushion ring (5) is provided with an adjusting valve (6) communicated with the inside of the air cushion ring (5), and the mask body (1) is fixedly connected with an elastic band (7); the one end of connecting pipe (2) with connect port pipe (4) and rotate the connection, be equipped with first internal thread (8) on the inner wall of the other end of connecting pipe (2), be equipped with first external screw thread (9) on the one end outer wall of transition pipe (3), connecting pipe (2) are realized being connected with transition pipe (3) through the threaded connection of first internal thread (8) and first external screw thread (9), the other end of transition pipe (3) is grafting end (10).

2. The disposable oxygen mask for the department of anesthesia as recited in claim 1, wherein a first annular groove (11) is formed in the outer wall of the connection port tube (4), a first convex ring (12) matched with the first annular groove (11) is formed in the inner wall of one end, away from the transition tube (3), of the connection tube (2), the first convex ring (12) is clamped in the first annular groove (11), and the first convex ring (12) is rotatably connected with the first annular groove (11).

3. The disposable oxygen mask for the department of anesthesia as recited in claim 1, wherein a second convex ring (13) is disposed on the outer wall of said connection port tube (4), a second annular groove (14) matched with said second convex ring (13) is disposed on the inner wall of the end of said connection tube (2) far away from said transition tube (3), said second convex ring (13) is engaged in said second annular groove (14), and said second convex ring (13) is rotatably connected with said second annular groove (14).

4. The disposable oxygen mask for the department of anesthesia as recited in claim 1, wherein a second external thread (15) is provided on the outer wall of said connection port end, a second internal thread (16) is provided on the inner wall of one end of said connection port tube (4) connected to said connection tube (2), the thread directions of said first internal thread (8) and said second internal thread (16) are opposite, said connection tube (2) is connected to said connection port tube (4) by the thread connection of said second internal thread (16) and said second external thread (15).

5. The disposable oxygen mask for anesthesia department according to any one of claims 2 to 4, wherein an annular sealing ring (17) is provided on the inner wall of the middle part of said connecting tube (2), and the end of said connecting port tube (4) and the end of said transition tube (3) abut against the two sides of said annular sealing ring (17), respectively.

6. The disposable oxygen mask for the department of anesthesia as recited in claim 1, wherein a third annular groove (18) is provided on the inner wall of said connection port tube (4), a third convex ring (19) matching with said third annular groove (18) is provided on the outer wall of the end of said connection tube (2) away from said transition tube (3), said third convex ring (19) is engaged in said third annular groove (18), and said third convex ring (19) is rotatably connected with said third annular groove (18).

7. The disposable oxygen mask for the department of anesthesia as recited in claim 1, wherein a fourth convex ring (20) is disposed on the inner wall of the connection port tube (4), a fourth annular groove (21) matched with the fourth convex ring (20) is disposed on the outer wall of the end of the connection tube (2) far away from the transition tube (3), the fourth convex ring (20) is clamped in the fourth annular groove (21), and the fourth convex ring (20) is rotatably connected with the fourth annular groove (21).

8. The disposable oxygen mask for the department of anesthesia as recited in claim 1, wherein a third internal thread (22) is provided on the inner wall of said connection port end, a third external thread (23) is provided on the outer wall of one end of said connection port tube (4) connected to said connection tube (2), the thread directions of said first internal thread (8) and said third internal thread (22) are the same, said connection tube (2) is connected to said connection port tube (4) by the thread connection of said third internal thread (22) and said third external thread (23).