CN219251270U - Breathing pipeline and breathing machine - Google Patents

Abstract

The utility model discloses a breathing pipeline and a breathing machine, wherein the breathing pipeline comprises an outer pipe, a heating device, a gas pipe and a breathing mask, the gas inlet end of the gas pipe is communicated with the breathing machine pipeline, and the gas outlet end of the gas pipe is detachably connected with the breathing mask; the outer tube is sleeved on the gas transmission tube, one end of the outer tube is detachably connected with the breathing mask, and the other end of the outer tube is detachably connected with the gas inlet end of the gas transmission tube; the air delivery pipe and the outer pipe are arranged at least partially at intervals, the heating device is arranged at the position where the air delivery pipe and the outer pipe are arranged at intervals, and the heating device is used for heating air passing through the air delivery pipe. So set up, when the user is changing gas-supply pipe and respirator, because heating device sets up in the outside of gas-supply pipe, need not change heating device when changing the gas-supply pipe for gas-supply pipe replacement cost is lower.

Description

Breathing pipeline and breathing machine

Technical Field

The utility model relates to the field of medical equipment, in particular to a breathing pipeline and a breathing machine.

Background

In the use process of the breathing machine, after the gas comes out of the breathing machine, the gas is required to be conveyed to a respiratory organ through a longer gas conveying pipe, however, in the cold weather condition, the gas can be cooled in the gas conveying pipe due to the low outside air temperature, so that the gas is excessively cooled when the breathing gas of a user is caused, and the discomfort of the body of the user is easily caused.

In order to solve the problem, the existing breathing machine is provided with a heating device in the gas pipe, and the heating device heats the gas in the gas pipe, so that discomfort caused by too low temperature of the gas inhaled by a user can be prevented; in practical use, in order to prevent cross infection of the user after using the air pipe for many times, the air pipe needs to be replaced frequently, and the heating device is generally and fixedly installed in the air pipe and is also easy to be polluted, so that the heating device can be replaced together when the air pipe is replaced, and the replacement cost of the air pipe is too high, so that improvement is needed.

Disclosure of Invention

The embodiment provides a breathing pipeline, and aims to solve the problem that the breathing pipeline needs to be replaced together with a heating device when the gas pipe is replaced.

In order to achieve the above object, the present utility model provides a breathing tube, which is applied to a breathing machine, wherein the breathing tube comprises an outer tube, a gas tube, a heating device and a breathing mask; the air inlet end of the air delivery pipe is communicated with the breathing machine pipeline, and the air outlet end of the air delivery pipe is detachably connected with the breathing mask; the outer tube is sleeved on the gas transmission tube, one end of the outer tube is detachably connected with the breathing mask, and the other end of the outer tube is detachably connected with the gas inlet end of the gas transmission tube; the air delivery pipe and the outer pipe are arranged at least partially at intervals, the heating device is arranged at the position where the air delivery pipe and the outer pipe are arranged at intervals, and the heating device is used for heating air passing through the air delivery pipe.

In some embodiments of the present utility model, the breathing mask is provided with a vent hole, an inner wall surface of the vent hole is provided with an internal thread section, and an outer thread section is arranged on the peripheral wall of the air outlet end of the air delivery pipe, and the outer thread section is in threaded connection with the internal thread section.

In some embodiments of the present utility model, at least two splicing ribs are convexly arranged on the peripheral wall of the air inlet end of the air pipe, and the at least two splicing ribs are arranged at intervals along the circumferential direction of the air pipe; the one end that the outer tube was kept away from the respirator runs through and is provided with two at least grafting grooves, and two at least grafting grooves are along the circumference interval setting of outer tube, each grafting groove and the grafting muscle grafting cooperation that corresponds.

In some embodiments of the present utility model, at least two fastening pieces are disposed at one end of the outer tube adjacent to the breathing mask, and at least two fastening pieces are arranged at intervals along the circumferential direction of the outer tube; the surface of the breathing mask, which is opposite to the face of the user, is concavely provided with at least two buckling holes, and each buckling hole is matched with the corresponding buckling piece in a buckling way.

In some embodiments of the present utility model, each clip includes a connection section and a limit section, one end of each connection section is connected with an end face of the outer tube, the other end of each connection section extends along a length direction of the outer tube, and each limit section is convexly arranged on an outer surface of the corresponding connection section; each buckling hole comprises an insertion section extending along the length direction of the outer tube and a buckling section concavely arranged from the lateral direction of the insertion section, each connecting section extends into the corresponding insertion section, and the buckling sections corresponding to the limiting sections are buckled.

In some embodiments of the utility model, a terminal for electrical connection with an external device is provided at an end of the outer tube remote from the respiratory mask, the terminal being electrically connected with the heating device.

In some embodiments of the present utility model, the heating device includes a heating wire spirally wound around an inner peripheral wall of the outer tube along a length direction of the outer tube, and an end of the heating wire away from the breathing mask is electrically connected to the connection terminal.

In some embodiments of the utility model, the breathing conduit further comprises a temperature sensor mounted within the outer tube and disposed adjacent the outlet end of the gas delivery tube, the temperature sensor being electrically connected to the connection terminal by an electrical cable.

In some embodiments of the utility model, the outer tube is a flexible bellows.

The utility model also provides a breathing machine, which comprises a machine body, a controller and the breathing pipeline; the machine body is provided with an air inlet joint and an air outlet joint, the air inlet joint is communicated with an air source pipeline, and the air outlet joint is communicated with the air inlet end of the air pipe; the controller is arranged on the machine body, the machine body is provided with a power supply connector, the power supply connector is electrically connected with the controller, and the power supply connector is also electrically connected with the heating device.

The outer pipe is sleeved outside the gas pipe, and the heating device is arranged in the gap between the outer pipe and the gas pipe, so that the heating device can heat the air in the gas pipe to prevent discomfort caused by breathing supercooled air by a user; the breathing mask is detachably connected with the gas pipe and the outer pipe, and the gas pipe is detachably connected with the outer pipe, so that a user can conveniently replace the gas pipe and the breathing mask, and bacteria are prevented from breeding due to long-term use of the gas pipe and the breathing mask; and because the heating device is arranged on the outer side of the air pipe, the heating device is not required to be replaced when the air pipe is replaced, so that the replacement cost of the air pipe is low.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of one embodiment of a respiratory tract according to the present utility model;

FIG. 2 is a schematic diagram of a respiratory tubing embodiment of the present utility model;

FIG. 3 is a cross-sectional view of one embodiment of a breathing tube of the present utility model;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of an embodiment of the outer tube and heating device of FIG. 1;

fig. 6 is an exploded view of an embodiment of a ventilator according to the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

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

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the technical solutions should be considered that the combination does not exist and is not within the scope of protection claimed by the present utility model.

The utility model provides a breathing pipeline 1000, which is applied to a breathing machine 2000, wherein the breathing pipeline 1000 can heat gas in the pipeline so that a user cannot breathe ice-cold air when using the breathing pipeline, and in addition, a gas pipe 200 of the breathing pipeline 1000 can be independently replaced, so that the replacement cost is low.

Referring to fig. 1 and 2, the breathing tube 1000 includes an outer tube 100, a gas tube 200, a heating device 300, and a breathing mask 400; the air delivery tube 200 is made of a soft plastic material, and preferably the air delivery tube 200 is made of a medical grade plastic material, such as medical grade polyether-polyurethane (E-PUR), medical grade polyvinyl chloride (PVC), and the like. The pipe diameter of the air delivery pipe 200 may be 20mm, 25mm, 30mm or other pipe diameters, and the pipe diameter of the air delivery pipe 200 is not particularly limited herein.

The two ends of the air pipe 200 are open and provided with an air inlet end and an air outlet end, the air inlet end of the air pipe 200 is communicated with the pipeline of the respirator 2000, at this time, the air inlet end of the air pipe 200 can be communicated with the pipeline of the respirator 2000 through an external connection piece (such as an adapter), and the air inlet end of the air pipe 200 can also be directly connected with the air outlet joint 610 on the respirator 2000, so that the air provided by the respirator 2000 can be input into the air pipe 200.

In addition, one side of the breathing mask 400 far away from the face of the person is communicated with the air outlet end of the air delivery pipe 200, and the air outlet end of the air delivery pipe 200 is detachably connected with the breathing mask 400, at this time, the air outlet end of the air delivery pipe 200 is detachably connected with the breathing mask 400 in various connection modes, the air outlet end of the air delivery pipe 200 can be detachably connected with the breathing mask 400 in a threaded locking mode, the air outlet end of the air delivery pipe 200 can also be detachably connected with the breathing mask 400 in a clamping mode, and the air outlet end of the air delivery pipe 200 can also be connected with the breathing mask 400 in other detachable connection modes, which are not listed here; so set up, after the respirator 400 receives the pollution, can be solitary follow breathing tube 1000 is gone up to detach, conveniently washs or change respirator 400.

The outer tube 100 is sleeved on the air delivery tube 200, so that the length of the outer tube 100 can be consistent with the length of the air delivery tube 200 or slightly smaller than the length of the air delivery tube 200 in order to make the breathing tube 1000 more integrated and convenient for the breathing mask 400 to replace, and the air outlet end of the air delivery tube 200 can be exposed on the outer tube 100, so that the air outlet end of the air delivery tube 200 is convenient for being detachably connected with the breathing mask 400.

One end of the outer tube 100 is detachably connected with the breathing mask 400, and the other end of the outer tube 100 is detachably connected with the air inlet end of the air pipe 200; by the arrangement, the whole air delivery pipe 200 can be ensured to be wrapped by the outer pipe 100; one end of the outer tube 100 is detachably connected with the breathing mask 400 in various manners, and the outer tube 100 can be connected with the breathing mask 400 through a detachable connection manner such as a screw lock, a clamping connection, a magic tape and the like, so that the breathing mask is not particularly limited; the detachable connection between the other end of the outer tube 100 and the air inlet end of the air delivery tube 200 is similar to the detachable connection between the outer tube 100 and the respiratory mask 400, and will not be described in detail herein.

The air delivery pipe 200 is at least partially spaced from the outer pipe 100, and the heating device 300 is disposed at a position spaced from the air delivery pipe 200 and the outer pipe 100, wherein the heating device 300 is used for heating air passing through the air delivery pipe 200. Thus, the gas can be heated by the heating device 300 when passing through the gas pipe 200, and the user is prevented from breathing into the cold air. In addition, the outer tube 100 is sleeved on the air delivery pipe 200, that is, the pipe diameter of the outer tube 100 should be larger than the pipe diameter of the air delivery pipe 200, and the pipe diameter of the outer tube 100 may be 5mm, 6mm, 7mm or other dimensions that can set the heating device 300 between the outer tube 100 and the air delivery pipe 200.

It should be noted that, the heating device 300 may be a heating wire 310, the heating wire 310 heats air in the air pipe 200 through an external power source, the heating device 300 may also be a heating lamp strip, the heating lamp strip lights and heats air in the air pipe 200 through the external power source, and the heating device 300 may also be other components which can generate heat and can be arranged between the air pipe 200 and the outer pipe 100, which are not listed here.

Through the above technical scheme, the outer tube 100 of the breathing pipe 1000 is sleeved outside the air delivery pipe 200, and the heating device 300 is arranged in the gap between the outer tube 100 and the air delivery pipe 200, and the heating device 300 can heat the air in the air delivery pipe 200 to prevent the user from breathing the supercooled air to cause discomfort; the breathing mask is detachably connected with the gas pipe 200 and the outer pipe 100, and the gas pipe 200 is detachably connected with the outer pipe 100, so that a user can conveniently replace the gas pipe 200 and the breathing mask 400, and bacteria are prevented from breeding due to long-term use of the gas pipe 200 and the breathing mask 400; and because the heating device 300 is arranged on the outer side of the air pipe 200, the heating device 300 does not need to be replaced when the air pipe 200 is replaced, so that the replacement cost of the air pipe 200 is low.

Referring to fig. 3 and 4, in order to facilitate the detachable connection between the gas pipe 200 and the breathing mask 400 and the detachable connection without additional parts such as screws, connectors, etc., in some embodiments of the present utility model, the breathing mask 400 is provided with a vent 400a, an inner wall surface of the vent 400a is provided with an internal thread section 400b, an outer peripheral wall of the gas outlet end of the gas pipe 200 is provided with an external thread section 200a, and the external thread section 200a is in threaded connection with the internal thread section 400 b. So set up, can connect or release both through rotatory respirator 400 or gas-supply pipe 200, convenience of customers changes respirator 400 to threaded connection's mode possesses certain leakproofness, and gas can not leak from the junction of gas-supply pipe 200 and respirator 400.

In another embodiment, a breathing joint is convexly disposed on a surface of the breathing mask 400 facing away from the user, an external thread section 200a is disposed on an outer peripheral wall of the breathing joint, an internal thread section 400b is disposed on an inner wall of an air outlet end of the air pipe 200, and the external thread section 200a is in threaded connection with the internal thread section 400b, so that the air pipe 200 is also convenient to be detachably connected with the breathing mask 400.

With continued reference to fig. 3 and 4, in order to facilitate the detachable connection between the air inlet end of the air pipe 200 and the end of the outer pipe 100 away from the respiratory mask 400, in this embodiment, at least two insertion ribs 210 are protruding from the outer peripheral wall of the air inlet end of the air pipe 200, and the at least two insertion ribs 210 are disposed at intervals along the circumferential direction of the air pipe 200; at least two inserting grooves 100a are penetrated and arranged at one end of the outer tube 100 away from the breathing mask 400, the at least two inserting grooves 100a are arranged at intervals along the circumferential direction of the outer tube 100, and each inserting groove 100a is in inserting fit with the corresponding inserting rib 210. In this manner, the air inlet end of the air delivery pipe 200 is conveniently detachably connected to the outer pipe 100.

It should be noted that, the groove depths of the at least two inserting grooves 100a extend along the length direction of the outer tube 100, so that the mating surface of the inserting grooves 100a and the inserting ribs 210 for inserting and mating is relatively large, and the air pipe 200 is not easy to be separated from the outer tube 100.

In order to ensure that the entire gas delivery tube 200 is wrapped by the outer tube 100, the gas delivery tube 200 is not pulled out from the side of the outer tube 100 away from the breathing mask 400 when the breathing tube 1000 is grasped, and in this embodiment, the outer tube 100 is also detachably connected to the breathing mask 400; specifically, at least two fastening pieces 110 are disposed at one end of the outer tube 100 adjacent to the breathing mask 400, and the at least two fastening pieces 110 are arranged at intervals along the circumferential direction of the outer tube 100; at least two fastening holes 410 are concavely arranged on the surface of the breathing mask 400 facing away from the face of the user, and each fastening hole 410 is in fastening fit with the corresponding fastening piece 110. So set up, the gas outlet end of gas-supply pipe 200 can be first with breathing mask 400 detachable connection, outer tube 100 rethread at least two fastener 110 and breathing mask 400 on corresponding lock joint hole 410 joint cooperation, can guarantee that gas-supply pipe 200 is wrapped up by outer tube 100 all the time.

Further, each buckling piece 110 is integrally formed with the outer tube 100, so that each buckling piece 110 is convenient to form and is not easy to fall off from the outer tube 100, each buckling piece 110 comprises a connecting section 111 and a limiting section 112, one end of each connecting section 111 is connected with the end face of the outer tube 100, the other end of each connecting section 111 extends along the length direction of the outer tube 100, and each limiting section 112 of each limiting section 112 is convexly arranged on the outer surface of the corresponding connecting section 111; at this time, each of the limiting sections 112 may extend inward toward the orifice near the outer tube 100 or may extend outward toward the orifice far from the outer tube 100, and the direction of the outer surface of the laterally protruding connecting section 111 of each of the limiting sections 112 is not limited herein.

In addition, each fastening hole 410 includes an insertion section 411 extending along the length direction of the outer tube 100 and a fastening section 412 recessed from the lateral direction of the insertion section 411, each connection section 111 extends into the corresponding insertion section 411, and the corresponding fastening section 412 of each limiting section 112 is fastened. Thus, each fastening piece 110 can be fastened and matched with the corresponding fastening hole 410, so that the outer tube 100 and the breathing mask 400 can be conveniently and detachably connected.

Referring to fig. 5, considering that the heating device 300 needs to be powered on, the heating device 300 needs to draw an electric cable to the outside, so that an external device can supply power to the electric cable, and the electric cable will be exposed on the outer side surface of the outer tube 100 to affect the appearance of the breathing tube 1000, in order to ensure the overall appearance of the breathing tube 1000 to be concise, in some embodiments of the present utility model, a connection terminal 120 for electrically connecting with the external device is disposed at an end of the outer tube 100 away from the breathing mask 400, and the connection terminal 120 is electrically connected with the heating device 300. Through setting up binding post 120 and external equipment electricity and being connected, be being connected through binding post 120 and the heating device 300 electricity of setting in outer tube 100, so conveniently switch on heating device 300, and connect electric cable not expose in outer tube 100 for outer tube 100 wholeness is higher.

In order to facilitate the user to use the breathing tube 1000 while lying down, the length of the breathing tube 200 is generally more than one meter, at this time, the breathing tube 1000 is longer, the gas passing through the breathing tube 200 is easy to be assimilated by the external temperature and to be supercooled, the heating device 300 is disposed near the air inlet end of the outer tube 100 and the temperature of the gas will drop when passing through the long breathing tube 200, and the heating device 300 is disposed at the air outlet end of the outer tube 100 and the part of the breathing tube 200, so that the heating time for heating the gas is too short to ensure that the temperature of the gas delivered to the breathing mask 400 is sufficiently warm, and in this regard, the heating device 300 is configured to heat the gas from the air inlet end of the breathing tube 200 to the air outlet end of the breathing tube 200.

Specifically, the heating device 300 includes a heating wire 310, the heating wire 310 is spirally wound on the inner peripheral wall of the outer tube 100 along the length direction of the outer tube 100, and one end of the heating wire 310 far away from the breathing mask 400 is electrically connected with the connection terminal 120. In this way, the heating wire 310 is wound on the inner peripheral wall of the outer tube 100 in a spiral winding manner, so that the contact area between the heating wire 310 and the gas pipe 200 can be enlarged, the gas in the gas pipe 200 can be uniformly heated, the gas can be ensured to be heated by the heating device 300 when passing through the gas pipe 200 with a longer length, and the user is prevented from breathing into cold gas.

In order to ensure that the user can breathe the gas at a proper temperature, in this embodiment, the breathing tube 1000 further includes a temperature sensor 500, and the temperature sensor 500 is installed in the outer tube 100 and disposed adjacent to the gas outlet end of the gas delivery tube 200, and the temperature sensor 500 is electrically connected to the connection terminal 120 through an electric cable. So configured, the temperature sensor 500 can detect the gas temperature at the gas outlet end of the gas pipe 200, and the gas outlet end of the gas pipe 200 is directly connected to the breathing mask 400, so that the temperature of the gas breathed by the user can be detected more truly and directly.

Referring to fig. 3, the temperature sensor 500 is electrically connected to the connection terminal 120 through an electric cable, and the connection terminal 120 is connected to an external device, so that the external device can perform heating adjustment on the heating device 300 according to temperature data detected by the temperature sensor 500, for example, when the temperature sensor 500 detects that the temperature is low, the external device controls the heating device 300 to increase the heating force so that the heated gas has a proper temperature; when the temperature detected by the temperature sensor 500 is high, the external device controls the heating device 300 to reduce the heating force so that the gas does not overheat.

It should be noted that, the temperature sensor 500 is disposed at a side of the outer tube 100 adjacent to the breathing mask 400, and the connection terminal 120 is disposed at a side of the outer tube 100 away from the breathing mask 400, at this time, when the temperature sensor 500 is connected to the connection terminal 120 through the electric cable, interference winding occurs between the electric cable and the heating wire 310 disposed on the outer tube 100, the electric cable of the temperature sensor 500 is easy to be burned during operation by the heating wire 310, so as to avoid the electric cable of the temperature sensor 500 being burned by the heating wire 310, in this embodiment, the electric cable of the temperature sensor 500 is also wound on the inner wall of the outer tube 100 in a spiral extending manner, and the electric cable of the temperature sensor 500 is disposed at an interval with the heating wire 310, so that the electric cable of the temperature sensor 500 does not overlap with the heating wire 310 in the outer tube 100, and is also prevented from being burned by the heating wire 310.

To facilitate the use of the breathing tube 1000 by a user, in some embodiments of the utility model, the outer tube 100 of the breathing tube 1000 is a flexible bellows, such that the outer tube 100 is flexible and twistable to facilitate traction by the user.

Referring to fig. 6, the present utility model further provides a ventilator 2000, where the ventilator 2000 includes a machine body 600, a controller 700, and a breathing tube 1000 as described above.

The specific structure of the breathing tube 1000 refers to the above embodiment, and since the breathing machine 2000 adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

The machine body 600 is provided with an air inlet joint and an air outlet joint 610, the air inlet joint is communicated with an air source pipeline, and the air outlet joint 610 is communicated with the air inlet end of the air delivery pipe 200; the gas in the gas source pipeline can be input by an external gas source, the gas inlet joint is connected with the external gas source, and the gas is introduced into the machine body 600 from the outside and then is output through the gas outlet joint 610; the air source pipeline can also be input by blowing of a wind motor arranged in the machine body 600, at the moment, the air inlet joint is communicated with the external environment, and the wind motor works to reflect air into the machine body 600 and then output the air through the air outlet joint 610.

Further, the controller 700 is disposed on the machine body 600, and the machine body 600 is further provided with a wind motor, a humidifier, a filter, a display, and the like, wherein the wind motor can transmit the air blast into the air source pipeline when working; the humidifier, the heating device 300 and the filter are communicated with the air source pipeline, so that the air in the air source pipeline is humidified, heated and filtered, and a user can keep comfortable and fresh breathing feeling when using the respirator 2000; the user can also perform man-machine interaction with the breathing machine 2000 through the display, and the display can display the working state of each component of the breathing machine 2000, for example, the flow rate of the gas, the temperature and humidity of the gas and the like; the controller 700 is electrically connected with each electrical component, so that the controller 700 can control the wind motor to perform blowing air supply or cut off air supply, the controller 700 can also control the flow rate of the conveying gas, the controller 700 can also control the humidifier and heat the humidifier to regulate and control the temperature and humidity of the conveying gas, and the controller 700 can also realize other control functions, which are not listed here one by one.

In addition, the machine body 600 is further provided with a power supply connector 620, the power supply connector 620 is electrically connected with the controller 700, and the power supply connector 620 is also electrically connected with the heating device 300; specifically, the power supply connector 620 is disposed at a peripheral side of the air inlet connector, so that when the air inlet end of the air pipe 200 is connected with the air outlet connector 610, the power supply connector 620 can be electrically connected with the connection terminal 120, thereby saving the power connection step and facilitating the use of users.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A breathing pipe, which is applied to a breathing machine, and is characterized by comprising an outer pipe, a gas pipe, a heating device and a breathing mask; wherein,,

the air inlet end of the air delivery pipe is communicated with the breathing machine pipeline, and the air outlet end of the air delivery pipe is detachably connected with the breathing mask;

the outer tube is sleeved on the gas transmission tube, one end of the outer tube is detachably connected with the breathing mask, and the other end of the outer tube is detachably connected with the gas inlet end of the gas transmission tube;

the air delivery pipe and the outer pipe are arranged at least partially at intervals, the heating device is arranged at the position where the air delivery pipe and the outer pipe are arranged at intervals, and the heating device is used for heating air passing through the air delivery pipe.

2. The respiratory tract of claim 1 wherein the respiratory mask is provided with a vent hole, an inner wall surface of the vent hole is provided with an internal thread section, an outer peripheral wall of an air outlet end of the air delivery pipe is provided with an external thread section, and the external thread section is in threaded connection with the internal thread section.

3. The respiratory tract of claim 1 wherein the peripheral wall of the air inlet end of the air delivery pipe is convexly provided with at least two splicing ribs, and at least two splicing ribs are arranged at intervals along the circumferential direction of the air delivery pipe;

the one end that the outer tube was kept away from the respirator runs through and is provided with two at least grafting grooves, and two at least grafting grooves are along the circumference interval setting of outer tube, each grafting groove and the grafting muscle grafting cooperation that corresponds.

4. The respiratory tract of claim 1 wherein the outer tube has at least two clasps disposed adjacent one end of the respiratory mask, the at least two clasps being spaced apart along the circumference of the outer tube; the surface of the breathing mask, which is opposite to the face of the user, is concavely provided with at least two buckling holes, and each buckling hole is matched with the corresponding buckling piece in a buckling way.

5. The respiratory tract of claim 4 wherein each clip comprises a connecting section and a limiting section, one end of each connecting section is connected with the end face of the outer tube, the other end of each connecting section extends along the length direction of the outer tube, and each limiting section is convexly arranged on the outer surface of the corresponding connecting section;

each buckling hole comprises an insertion section extending along the length direction of the outer tube and a buckling section concavely arranged from the lateral direction of the insertion section, each connecting section extends into the corresponding insertion section, and the buckling sections corresponding to the limiting sections are buckled.

6. The respiratory tract of claim 1 wherein the end of the outer tube remote from the respiratory mask is provided with a terminal for electrical connection with an external device, the terminal being electrically connected with the heating device.

7. The respiratory tract of claim 6 wherein the heating device comprises a heater wire helically wound around the inner peripheral wall of the outer tube along the length of the outer tube, the end of the heater wire remote from the respiratory mask being electrically connected to the terminal block.

8. The respiratory tubing of claim 6 further comprising a temperature sensor mounted within the outer tube and disposed adjacent the outlet end of the gas delivery tube, the temperature sensor being electrically connected to the terminal block by an electrical cable.

9. The respiratory tract according to any one of claims 1 to 8, wherein the outer tube is a flexible bellows.

10. A ventilator comprising a machine body, a controller, and a respiratory tract according to any one of claims 1 to 9; wherein,,

the machine body is provided with an air inlet joint and an air outlet joint, the air inlet joint is communicated with an air source pipeline, and the air outlet joint is communicated with the air inlet end of the air delivery pipe;

the controller is arranged on the machine body, the machine body is provided with a power supply connector, the power supply connector is electrically connected with the controller, and the power supply connector is also electrically connected with the heating device.

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