CN219354943U - Breathing machine - Google Patents

Abstract

The utility model discloses a breathing machine, which comprises a machine body, a gas transmission pipe and a limiting piece, wherein the machine body is provided with a gas inlet joint and a gas outlet joint, the gas inlet joint is used for being communicated with a gas source pipeline, the peripheral wall of the gas outlet joint is provided with a clamping part, the gas outlet end of the gas transmission pipe is communicated with a breathing mask, the gas inlet end of the gas transmission pipe is in sleeve joint fit with the gas outlet joint, and the inner peripheral wall of the gas inlet end of the gas transmission pipe is provided with a clamping part matched with the clamping part; the limiting piece is movably mounted on the machine body and is provided with a locking position and an unlocking position, when the limiting piece is positioned at the locking position, the air inlet end of the air pipe is restrained so as to prevent the clamping part from being separated from the clamping part, and when the limiting piece is positioned at the unlocking position, the limiting piece is arranged at intervals with the air inlet end of the air pipe so as to release the restraint on the air inlet end of the air pipe. The air pipe and the air outlet connector are firmly connected, and are not easy to separate due to pulling, so that continuous and normal air supply of the breathing machine during working is ensured.

Description

Breathing machine

Technical Field

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

Background

The breathing machine is a device which can replace, control or change normal physiological breathing of people, increase the ventilation quantity of lungs, improve the respiratory function, lighten the consumption of the respiratory function and save the reserve capacity of the heart.

The existing breathing machine generally transmits oxygen to a user through the air delivery pipe, however, when the breathing machine is used, the user can unconsciously drag the air delivery pipe, so that the air delivery pipe and the breathing machine are possibly disconnected, and therefore the breathing machine cannot normally supply air to the user, and certain use defects exist, and therefore, improvement is needed.

Disclosure of Invention

The embodiment provides a breathing machine, and aims to solve the problem that a gas pipe is not firmly connected with the breathing machine.

In order to achieve the above purpose, the utility model provides a breathing machine, which comprises a machine body, a gas pipe and a limiting piece; the machine body is provided with an air inlet joint and an air outlet joint, the air inlet joint is used for being communicated with an air source pipeline, the outer peripheral wall of the air outlet joint is provided with a clamping part, the air outlet end of the air pipe is communicated with the breathing mask, the air inlet end of the air pipe is in sleeve joint fit with the air outlet joint, and the inner peripheral wall of the air inlet end of the air pipe is provided with a clamping part matched with the clamping part; the limiting piece is movably mounted on the machine body and is provided with a locking position and an unlocking position, the limiting piece is used for restraining the air inlet end of the air pipe when being positioned at the locking position so as to prevent the clamping part from being separated from the clamping part, and the limiting piece is arranged at an interval with the air inlet end of the air pipe when being positioned at the unlocking position so as to release the restraint on the air inlet end of the air pipe.

In some embodiments of the present utility model, an annular groove extending along a circumferential direction of the air outlet connector is concavely formed on an outer peripheral wall of the air outlet connector to form the clamping portion, a plurality of elastic protrusions are arranged on an inner peripheral wall of an air inlet end of the air pipe, the elastic protrusions are arranged along the circumferential direction of the air pipe to form the clamping portion, and each elastic protrusion is in clamping fit with the annular groove.

In some embodiments of the utility model, the resilient protrusions are arranged in a semi-spherical shape.

In some embodiments of the present utility model, the air inlet end of the air pipe is formed with two parallel elastic arms, the two elastic arms are arranged at intervals along the circumferential direction of the air pipe, the inner wall surfaces of the two elastic arms are provided with a plurality of elastic protrusions, the plurality of elastic protrusions on the two elastic arms are arranged along the circumferential direction of the air pipe, and the limiting piece abuts against the outer side surfaces of the two elastic arms when in the locking position.

In some embodiments of the present utility model, the air inlet end of the air delivery pipe is provided with four notches in a penetrating manner, the four notches extend along the axial direction of the air delivery pipe and are arranged at intervals along the circumferential direction of the air delivery pipe, and the part of the air delivery pipe located between two adjacent notches forms the elastic arm.

In some embodiments of the present utility model, the machine body is provided with two guide rails located at two opposite sides of the air outlet connector, and the two guide rails are both extended along the radial direction of the air outlet connector and are arranged in parallel; the limiting piece is movably connected with the two guide rails, a clamping opening is formed in one side, adjacent to the air outlet joint, of the limiting piece, when the limiting piece is located at the locking position, the clamping opening is in butt fit with the air inlet end of the air pipe, and when the limiting piece is located at the unlocking position, the clamping opening is arranged at intervals with the air inlet end of the air pipe.

In some embodiments of the present disclosure, each guide rail includes a connection section and a limit section, each connection section is connected to the machine body, one end of each limit section is connected to one end of the corresponding connection section away from the machine body, the other end of each limit section extends toward the air outlet connector, and two sides of the limit piece, which are oppositely disposed, are respectively limited between the machine body and the corresponding limit section.

In some embodiments of the present utility model, the ventilator further includes a release preventing plate mounted on the machine body, the release preventing plate being located on a side of the limiting member away from the air outlet connector, the release preventing plate being configured to limit the release of the limiting member from the two guide rails.

In some embodiments of the utility model, the peripheral wall of the air outlet joint is concavely provided with a sealing groove extending along the circumferential direction of the air outlet joint; the breathing machine further comprises a sealing ring, the sealing ring is installed in the sealing groove, and the outer ring of the sealing ring protrudes out of the sealing groove to be in sealing butt joint with the inner peripheral wall of the air inlet end of the air delivery pipe.

In some embodiments of the utility model, a heating device is arranged inside the air pipe, and an electric connection port electrically connected with the heating device is arranged at the air inlet end of the air pipe; the machine body is provided with the power supply interface that is located the air outlet joint week side, the power supply interface with the air inlet of gas-supply pipe with the air outlet joint cup joints when joining in marriage with the electric connector is connected.

According to the utility model, the air outlet connector is arranged on the machine body of the breathing machine, the clamping part is arranged on the peripheral wall of the air outlet connector, and the air inlet end of the air pipe is provided with the clamping part which is matched with the clamping part in a clamping way, so that the air inlet end of the air pipe can be quickly pre-fixed on the air outlet connector when the air pipe is matched with the air outlet connector in a sleeved way; the limiting piece is movably arranged on the machine body and provided with a locking position and an unlocking position, and the air inlet end of the air delivery pipe can be restrained when the limiting piece is positioned at the locking position, so that the air delivery pipe and the air outlet joint are firmly connected, the separation caused by pulling is not easy, and the continuous air supply of the respirator during working is ensured; when the gas pipe needs to be cleaned and replaced, the limiting piece needs to be moved to be in the unlocking position, and then the limiting piece acts on the gas pipe, so that the gas inlet end of the gas pipe can be separated from the gas outlet joint.

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 ventilator of the present utility model;

FIG. 2 is a schematic diagram of a ventilator according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an embodiment of a ventilator of the present utility model;

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

FIG. 5 is a schematic diagram of an embodiment of the air delivery conduit of FIG. 1.

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.

Referring to fig. 1 to 2, the present utility model provides a ventilator 1000, which includes a machine body 100, a gas pipe 200, and a limiting member 300; the air pipe 200 is connected with the machine body 100 to supply the air provided by the ventilator 1000 to a user, and the limiting piece 300 can apply constraint to the air inlet end of the air pipe 200, so that the air pipe 200 is reliably connected with the machine body 100 and is not easy to break away.

The machine body 100 is provided with an air inlet connector (not shown) for communicating with an air source line, and an air outlet connector 110 for communicating with an air inlet end of the air delivery pipe 200. The gas in the gas source pipeline can be input by an external gas source, at the moment, the gas inlet joint is connected with the external gas source, and the gas is introduced into the machine body 100 from the outside and then is output through the gas outlet joint 110; the air source pipeline can also be input by blowing of a wind motor arranged in the machine body 100, 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 100 and then output the air through the air outlet joint 110.

Further, the machine body 100 further comprises a controller 700, a wind motor, a humidifier, a heating device, a filter, a display and other devices, wherein the wind motor can be used for transmitting air blast into an air source pipeline; the humidifier, the heating device and the filter are communicated with the air source pipeline to humidify, heat and filter the air in the air source pipeline, so that a user can keep comfortable and fresh breathing feeling when using the respirator 1000; the user can also perform man-machine interaction with the ventilator 1000 through the display, and the display can display the working state of each component of the ventilator 1000, 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 disconnect air supply, the controller 700 can also control the flow rate of the conveying gas, the controller 700 can also control the humidifier and the heater to regulate and control the temperature and the humidity of the conveying gas, and the controller 700 can also realize other control functions, which are not listed here one by one.

The air outlet joint 110 is used for being connected with the air pipe 200, and is used for transmitting the air in the air source pipeline to a user through the air pipe 200, so that the air outlet end of the air pipe 200 can be connected with a breathing mask (not shown) in order to facilitate the user to use the air transmitted from the breathing machine 1000, and the breathing mask covers the face of the user, thereby facilitating the user to breathe the air transmitted by the air pipe 200; it should be noted that, connected to the air outlet end of the air pipe 200 may be a respiratory nasal mask, a nasal airway, etc.

The shape of the air outlet connector 110 is various, the air outlet connector 110 may be a cylindrical shape, the air outlet connector 110 may be a square shape, the air outlet connector 110 may be another shape, and the shape of the air outlet connector 110 is not particularly limited herein.

It should be noted that, the air inlet end of the air pipe 200 is sleeved and matched with the air outlet connector 110, and at this time, the inner contour of the air inlet end of the air pipe 200 may be similar to the outer contour of the air outlet connector 110, so that the air inlet end of the air pipe 200 is conveniently sleeved on the air outlet connector 110, and the joint between the air pipe 200 and the air outlet connector 110 has a certain sealing performance.

In order to facilitate the quick installation of the air pipe 200 on the machine body 100, the outer circumferential wall of the air outlet connector 110 is provided with a clamping portion, the inner circumferential wall of the air inlet end of the air pipe 200 is provided with a clamping portion 210 matched with the clamping portion, and the clamping portion 210 is matched with the clamping portion in a clamping manner, so that the air inlet end of the air pipe 200 can be quickly and relatively fixed on the air outlet connector 110.

The limiting member 300 is movably mounted on the machine body 100 and has a locking position and an unlocking position, at this time, the limiting member 300 may be rotationally connected with the machine body 100, or the limiting member 300 may be slidably connected with the machine body 100, and the specific manner of the movable connection of the limiting member 300 to the machine body 100 is not limited herein.

When the limiting member 300 is at the locking position, the limiting member 300 can apply a constraint to the air inlet end of the air pipe 200 to prevent the clamping portion 210 from being separated from the clamping portion, and there are various ways in which the limiting member 300 applies a constraint to the air inlet end of the air pipe 200, for example, the limiting member 300 clamps two sides of the air inlet end of the air pipe 200, so that the clamping portion 210 cannot move outwards and is separated from the clamping portion; for another example, the limiting member 300 applies a pressing force to the air pipe 200 in a direction approaching the machine body 100, so that the air pipe 200 cannot be pulled out from the air outlet connector 110, and thus the clamping portion 210 cannot be pulled out from the clamping portion.

When the limiting member 300 is in the unlocking position, the limiting member 300 is spaced from the air inlet end of the air pipe 200 to release the restriction on the air inlet end of the air pipe 200, and then acts on the air pipe 200 to pull out the air pipe 200 from the air outlet connector 110.

Through the above technical solution, the air outlet connector 110 is disposed on the machine body 100 of the ventilator 1000, the clamping portion is disposed on the outer peripheral wall of the air outlet connector 110, and the air inlet end of the air pipe 200 is disposed with the clamping portion 210 that is matched with the clamping portion in a clamping manner, so that the air inlet end of the air pipe 200 can be quickly pre-fixed on the air outlet connector 110 when the air pipe 200 is matched with the air outlet connector 110 in a sleeving manner; the limiting piece 300 is movably mounted on the machine body 100 and has a locking position and an unlocking position, when the limiting piece 300 is in the locking position, the air inlet end of the air delivery pipe 200 can be restrained, so that the air delivery pipe 200 is firmly connected with the air outlet joint 110, and the air delivery pipe is not easy to pull to break away, thereby ensuring continuous air supply when the respirator 1000 works; when the air pipe 200 needs to be cleaned and replaced, the limiting member 300 needs to be moved to the unlocking position, and then acts on the air pipe 200, so that the air inlet end of the air pipe 200 can be separated from the air outlet joint 110.

Referring to fig. 3 and 4, in order to facilitate the clamping engagement between the clamping portion 210 of the air delivery pipe 200 and the clamping portion on the air outlet connector 110, in this embodiment, an annular groove 110a extending along the circumferential direction of the air outlet connector 110 is concavely formed on the outer circumferential wall of the air outlet connector 110 to form a clamping portion, a plurality of elastic protrusions 212 are disposed on the inner circumferential wall of the air inlet end of the air delivery pipe 200, and the plurality of elastic protrusions 212 are arranged along the circumferential direction of the air delivery pipe 200 to form the clamping portion 210, and each elastic protrusion 212 is in clamping engagement with the annular groove 110 a; thus, when the air delivery pipe 200 is sleeved on the air outlet connector 110, each elastic protrusion 212 is aligned with the annular groove 110a and extends into the annular groove 110a, so that the air delivery pipe 200 is quickly pre-installed on the air outlet connector 110.

It should be noted that, the air inlet end of the air delivery pipe 200 is made of an elastic material, for example, a plastic material, a silica gel material, etc., so as to facilitate deformation thereof to clamp each elastic protrusion 212 into the annular groove 110 a.

Referring to fig. 5, the shape of each elastic protrusion 212 is various, and each elastic protrusion 212 may be cylindrical, square, or conical, and in some embodiments of the present utility model, each elastic protrusion 212 is semi-spherical, so that when the air inlet end of the air pipe 200 is sleeved on the air outlet connector 110, the spherical surface of one side of the end of each elastic protrusion 212 adjacent to the air pipe 200 abuts against the outer contour of the air outlet connector 110, and pushes the air inlet end to deform outwards, so as to perform a guiding function, and facilitate the air inlet end of the air pipe 200 to be sleeved on the air outlet connector 110;

in addition, when the air delivery pipe 200 needs to be pulled out from the air outlet connector 110, the spherical surface of the side of each elastic protrusion 212, which faces away from the port of the air delivery pipe 200, abuts against the groove wall of the annular groove 110a facing the machine body 100, and pushes the air inlet end to deform outwards, which also plays a guiding role, so that the air delivery pipe 200 is conveniently pulled out from the air outlet connector 110.

In order to facilitate the restraint of the limiting member 300 to the air inlet end of the air delivery pipe 200, such that the clamping portion 210 cannot be easily separated from the clamping portion, in some embodiments of the present utility model, the air inlet end of the air delivery pipe 200 is formed with two parallel elastic arms 211, the two elastic arms 211 are disposed at intervals along the circumferential direction of the air delivery pipe 200, the inner wall surfaces of the two elastic arms 211 are provided with a plurality of elastic protrusions 212, and the plurality of elastic protrusions 212 on the two elastic arms 211 are all arranged along the circumferential direction of the air delivery pipe 200, so that when the air delivery pipe 200 is to be pulled out from the air outlet connector 110, the air delivery pipe 200 is acted by an upward force, each elastic protrusion 212 pushes the two elastic arms 211 to deform towards the outer circumferential side, and when the limiting member 300 is in the locking position, the two elastic arms 211 are blocked from deforming outwards, so that each elastic protrusion 212 is prevented from separating from the annular groove 110a, and thus the air inlet end of the air delivery pipe 200 and the air outlet connector 110 can be firmly connected.

With continued reference to fig. 5, in order to ensure that the outer contour shape of the air inlet end of the air delivery pipe 200 is concise and unobtrusive, two elastic arms 211 may be disposed on the outer peripheral wall of the air inlet end of the air delivery pipe 200, in some embodiments of the present utility model, four notches 210a are disposed through the air inlet end of the air delivery pipe 200, the four notches 210a extend along the axial direction of the air delivery pipe 200 and are arranged at intervals along the circumferential direction of the air delivery pipe 200, and the portions of the air delivery pipe 200 located between two adjacent notches 210a form the elastic arms 211, so that the two elastic arms 211 do not protrude out of the port of the air inlet end, thereby ensuring that the port of the air inlet end of the air delivery pipe 200 is concise.

Referring to fig. 1 to 3, in the present embodiment, the limiting member 300 is installed on the machine body 100 in a sliding manner, and specifically, in order to facilitate sliding of the limiting member 300 relative to the machine body 100, two guide rails 120 located on two opposite sides of the air outlet connector 110 are disposed on the machine body 100, and the two guide rails 120 extend along a radial direction of the air outlet connector 110 and are disposed in parallel, and the limiting member 300 is movably connected with the two guide rails 120.

The two guide rails 120 can be arranged in various ways, the two guide rails 120 can be directly arranged on the machine body 100 by adopting standard components of the guide rails 120, and the limiting component 300 is slidably arranged on the standard components of the two guide rails 120; the two guide rails 120 may also be integrally formed with the machine body 100, for example, two guide grooves are concavely formed on the surface of the machine body 100, the two guide grooves form the two guide rails 120, the limiting member 300 is convexly provided with two sliding blocks, and the two sliding blocks are slidably mounted in the corresponding two guide grooves, so that the limiting member 300 is slidably mounted on the two guide rails 120.

Further, a clamping opening 300a is disposed on a side of the limiting member 300 adjacent to the air outlet connector 110, when the limiting member 300 is in the locking position, the clamping opening 300a is in abutting engagement with the air inlet end of the air pipe 200, so as to prevent the clamping portion 210 from deforming and falling out of the clamping portion, and when the limiting member 300 is in the unlocking position, the clamping opening 300a is disposed at an interval with the air inlet end of the air pipe 200.

In addition, in order to ensure that the limiting member 300 can better abut against the peripheral wall of the air inlet port of the air pipe 200, the shape profile of the clamping opening 300a may be consistent with the shape of the peripheral wall of the air inlet port, so as to ensure that the limiting member 300 can provide a larger abutting surface to abut against the peripheral wall of the air inlet port of the air pipe 200 when the limiting member 300 is in the locking position, and ensure that the air inlet port of the air pipe 200 cannot deform to release the clamping portion 210 from the engaging portion.

Referring to fig. 1 and 2, considering that the limiting member 300 is slidably mounted on the two guide rails 120 and can also move in a direction away from the surface of the machine body 100, so that the limiting member 300 cannot be limited to slide on the surface of the machine body 100, which is not beneficial to restrict the air inlet end of the air delivery pipe 200, in order to avoid the limiting member 300 moving in a direction away from the surface of the machine body 100, in some embodiments of the present utility model, each guide rail 120 includes a connecting section 121 and a limiting section 122, each connecting section 121 is connected with the machine body 100, one end of each limiting section 122 is connected with one end of the corresponding connecting section 121 away from the machine body 100, and the other end of each limiting section 122 extends towards the air outlet connector 110, so that two sides of the limiting member 300, which are oppositely designed, are respectively in clearance fit with one surface of the connecting section 121 facing the air outlet connector 110, so that the limiting member 300 slides relative to the two guide rails 120; in addition, two sides of the limiting member 300, which are oppositely arranged, are respectively limited between the machine body 100 and the corresponding limiting section 122, so that the limiting member 300 can be limited on the surface of the machine body 100, and the limiting member 300 can be ensured to apply constraint to the air inlet end of the air delivery pipe 200.

It should be noted that the distance that the two limiting sections 122 extend toward the air outlet connector 110 may be 1mm, 2mm, 3mm or other length, and the length that the two limiting sections 122 extend toward the air outlet connector 110 is only required to limit the two sides of the limiting member 300 to the surface of the machine body 100, which is not limited herein.

When the limiting member 300 is in the unlocking position, the limiting member 300 can slide in a direction away from the air outlet connector 110 under the limitation of the two guide rails 120, so that the limiting member 300 is easily separated from the limitation of the two guide rails 120 from the side of the two guide rails 120 away from the air outlet connector 110, and in order to avoid the limitation that the limiting member 300 is separated from the two guide rails 120, in this embodiment, the ventilator 1000 further includes a release preventing plate 400, the release preventing plate 400 is mounted on the machine body 100, and the release preventing plate 400 is located on the side of the limiting member 300 away from the air outlet connector 110, and by providing the release preventing plate 400, the limiting member 300 can be prevented from being released from the two guide rails 120.

The anti-falling plate 400 is mounted on the machine body 100 in various mounting manners, the anti-falling plate 400 can be mounted on the machine body 100 in a detachable mounting manner, such as a clamping connection, a screw locking and other detachable mounting manners, the anti-falling plate 400 can also be mounted on the machine body 100 in an undetachable mounting manner, such as a welding and bonding mounting manner, and the connection between the anti-falling plate 400 and the machine body 100 is not limited.

In order to facilitate the user to move the limiting member 300, so that the limiting member 300 can be switched between the unlocking position and the locking position, in this embodiment, a handle post 310 for the user to grasp is further protruding on a side of the limiting member 300 facing away from the machine body 100, and the user can drag the limiting member 300 to slide on the machine body 100 by acting on the handle post 310.

Referring to fig. 3 and fig. 4, in order to ensure that the ventilator 1000 can supply air to a user stably through the air pipe 200, the air pipe 200 needs to have a certain tightness to prevent leakage at the gap between the air pipe 200 and the air outlet connector 110, and specifically, in this embodiment, a sealing groove extending along the circumferential direction of the outer circumferential wall of the air outlet connector 110 is concavely formed on the outer circumferential wall of the air outlet connector 110; the ventilator 1000 further includes a sealing ring 500, where the sealing ring 500 is installed in the sealing groove, and an outer ring of the sealing ring 500 protrudes out of the sealing groove to be in sealing abutment with an inner peripheral wall of the air inlet end of the air delivery pipe 200. In this way, the clearance between the gas pipe 200 and the gas outlet joint 110 can be sealed by the seal ring 500, and the reverse gas leaks from the clearance.

In another embodiment, a sealing groove extending along the circumferential direction of the inner circumference of the air inlet end of the air delivery pipe 200 is concavely formed in the inner circumference of the air inlet end, the sealing ring 500 is installed in the sealing groove, the inner ring of the sealing ring 500 protrudes out of the sealing groove, and when the air delivery pipe 200 is sleeved on the air outlet joint 110, the sealing ring 500 can seal the gap between the air delivery pipe 200 and the air outlet joint 110.

In addition, the sealing ring 500 may be made of nitrile rubber, ethylene propylene diene monomer, or other rubber, which is not particularly limited herein.

Referring to fig. 1 to 3, considering that the gas is delivered to the user through the gas delivery tube 200 after exiting the ventilator 1000 during the use of the ventilator 1000, the gas in the gas delivery tube 200 is cooled due to the low air temperature of the outside in cold weather, such that the user breathes the gas to be overcooled, and the user's body is easy to feel uncomfortable, therefore, in order to avoid overcooling the gas breathed by the user, in some embodiments of the present utility model, the heating device 600 is disposed inside the gas delivery tube 200, and the heating device 600 can heat the gas inside the gas delivery tube 200, so that the user does not feel uncomfortable due to overcooling of the gas when breathing the gas.

Further, the heating device 600 may be a heating wire, which is wound around the gas pipe 200 to heat the gas in the gas pipe 200; the heating device 600 may be a heating plate, which is laid in the gas pipe 200 and heats the gas in the gas pipe 200; the heating device 600 may have other structures having a heating function, which are not described here.

The heating device 600 realizes a heating function by being electrified, so that the heating device 600 needs to be connected by a power supply, and in this embodiment, the air inlet end of the air pipe 200 is provided with an electric connection port 220 electrically connected with the heating device 600; the machine body 100 is provided with a power supply interface 130 located at the peripheral side of the air outlet connector 110, and the power supply interface 130 is connected with the electric connection port 220 when the air inlet end of the air pipe 200 is in socket fit with the air outlet connector 110. In this way, when the air inlet end of the air pipe 200 is inserted into the air outlet connector 110, the electric connection port 220 is connected to the power supply interface 130, and the heating device 600 can be electrically heated.

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. The breathing machine is characterized by comprising a machine body, a gas pipe and a limiting piece; wherein,,

the machine body is provided with an air inlet connector and an air outlet connector, the air inlet connector is used for being communicated with an air source pipeline, the outer peripheral wall of the air outlet connector is provided with a clamping part, the air outlet end of the air delivery pipe is communicated with the breathing mask, the air inlet end of the air delivery pipe is in sleeve joint fit with the air outlet connector, and the inner peripheral wall of the air inlet end of the air delivery pipe is provided with a clamping part matched with the clamping part;

the limiting piece is movably mounted on the machine body and is provided with a locking position and an unlocking position, the limiting piece is used for restraining the air inlet end of the air pipe when being positioned at the locking position so as to prevent the clamping part from being separated from the clamping part, and the limiting piece is arranged at an interval with the air inlet end of the air pipe when being positioned at the unlocking position so as to release the restraint on the air inlet end of the air pipe.

2. The ventilator of claim 1, wherein the outer peripheral wall of the outlet fitting is concavely provided with an annular groove extending along a circumferential direction thereof to form the engaging portion, the inner peripheral wall of the inlet end of the air delivery tube is provided with a plurality of elastic protrusions, the plurality of elastic protrusions are arranged along the circumferential direction of the air delivery tube to form the engaging portion, and each of the elastic protrusions is engaged with the annular groove.

3. The ventilator of claim 2, wherein the resilient protrusions are arranged in a semi-spherical shape.

4. The respirator of claim 2, wherein the air inlet end of the air delivery pipe is formed with two parallel elastic arms, the two elastic arms are arranged at intervals along the circumferential direction of the air delivery pipe, a plurality of elastic bulges are arranged on the inner wall surfaces of the two elastic arms, the plurality of elastic bulges on the two elastic arms are arranged along the circumferential direction of the air delivery pipe, and the limiting piece is abutted against the outer side surfaces of the two elastic arms when in the locking position.

5. The ventilator of claim 4, wherein the air inlet end of the air delivery tube is provided with four notches therethrough, the four notches extending along the axial direction of the air delivery tube and being arranged at intervals along the circumferential direction of the air delivery tube, and the portions of the air delivery tube between adjacent two of the notches forming the resilient arms.

6. The ventilator of claim 1, wherein the machine body is provided with two guide rails positioned on opposite sides of the outlet connector, both guide rails extending in a radial direction of the outlet connector and being arranged in parallel;

the limiting piece is movably connected with the two guide rails, a clamping opening is formed in one side, adjacent to the air outlet joint, of the limiting piece, when the limiting piece is located at the locking position, the clamping opening is in butt fit with the air inlet end of the air pipe, and when the limiting piece is located at the unlocking position, the clamping opening is arranged at intervals with the air inlet end of the air pipe.

7. The ventilator of claim 6, wherein each of the guide rails comprises a connecting section and a limiting section, each of the connecting sections is connected with the machine body, one end of each of the limiting sections is connected with one end of the corresponding connecting section away from the machine body, the other end of each of the limiting sections extends toward the air outlet connector, and two sides of the limiting member, which are oppositely arranged, are respectively limited between the machine body and the corresponding limiting section.

8. The ventilator of claim 6, further comprising an anti-slip plate mounted to the machine body, the anti-slip plate being positioned on a side of the stop member remote from the outlet connector, the anti-slip plate being configured to limit the stop member from slipping off of the two guide rails.

9. The ventilator of claim 1, wherein the peripheral wall of the outlet fitting is recessed with a seal groove extending circumferentially therealong; the breathing machine further comprises a sealing ring, the sealing ring is installed in the sealing groove, and the outer ring of the sealing ring protrudes out of the sealing groove to be in sealing butt joint with the inner peripheral wall of the air inlet end of the air delivery pipe.

10. The respirator of claim 1, wherein a heating device is arranged in the air delivery pipe, and an electric connection port electrically connected with the heating device is arranged at the air inlet end of the air delivery pipe;

the machine body is provided with the power supply interface that is located the air outlet joint week side, the power supply interface with the air inlet of gas-supply pipe with the air outlet joint cup joints when joining in marriage with the electric connector is connected.