CN115920191A - Air blast assembly, breathing machine gas circuit module and breathing machine - Google Patents

Abstract

The application discloses a blowing component, a breathing machine gas circuit module and a breathing machine, wherein the blowing component comprises a housing and a blowing machine arranged in the housing, the housing is provided with a gas inlet and a gas outlet, and the housing is internally provided with a gas inlet channel communicated with the gas inlet and a gas suction port of the blowing machine respectively and a gas outlet channel communicated with a blowing port and a gas outlet of the blowing machine respectively; the air inlet and the air outlet are in the same direction. This application will the air-blower and with the inlet channel of air-blower intercommunication and outlet channel integration in the housing, realized the modularized design to the key part in the breathing machine product, the air-blower and the gas circuit passageway of intercommunication air-blower can integrated the installation when installing and removing, and detach fast, greatly reduced the maintenance degree of difficulty, maintainer only need disassemble this module alone, and need not to touch the part of other gas circuits of breathing machine, and is simple and convenient, efficiency is higher, the after-sale maintenance cost of enterprise has been reduced.

Description

Air blast assembly, breathing machine gas circuit module and breathing machine

Technical Field

The application belongs to the technical field of medical equipment, concretely relates to air blast subassembly, breathing machine gas circuit module and breathing machine.

Background

In medical breathing equipment, the layout of the interior of the machine is compact, the number of connecting wire harnesses is relatively large, and a hospital needs to detect and replace aged parts and key parts during regular equipment maintenance. When the operation is carried out, an engineer needs to open the machine, disassemble the machine layer by layer, find core components, check and replace the core components, install and restore scattered components after a series of maintenance operations are finished, and even fix a plurality of wiring harnesses by inserting and arranging the wiring harnesses.

For the breathing machine, it is one of indispensable maintenance items to carry out the inspection and maintenance to its inside air blower subassembly, when overhauing the air blower subassembly, not only need pull down the air blower subassembly from the machine, still be connected with a large amount of pipelines that are used for communicating the gas circuit on the air blower in addition and the pencil, need pull down these pipelines and pencil together, after overhauing the completion, still need to resume again connecting these pipelines and pencil.

The requirement on the skill of maintenance personnel for the work of disassembly and pipeline connection is very high, the overhaul time of the whole gas circuit is long, a plurality of other sensors or flow detection elements are arranged on the gas circuit module, and the electrically connected wire harnesses and parts of the sensors or the flow detection elements can be disassembled, so that the whole maintenance site is very disordered, and the possibility of connection errors exists; in response to the above problems, enterprises must train more and more professional maintenance engineers to meet the maintenance and update work of the products in service, which undoubtedly increases the after-sales cost of the enterprises and reduces the profit of the products.

In addition, the frequent installation and removal of pipeline and pencil can lead to the sealing performance reduction between the pipeline to and influence the good contact between the pencil, lead to breathing machine reliability reduction of working, the fault rate risees, influences the use and experiences.

Disclosure of Invention

The application provides a blower assembly, a breathing machine gas circuit module and a breathing machine, which aim to solve at least one of the technical problems.

The technical scheme adopted by the application is as follows:

a blast air subassembly, includes the housing and sets up in the air-blower in the housing, the housing is seted up 5 and is had air inlet and gas outlet, the housing is inside be provided with respectively with the air inlet with inhale of air-blower

The air inlet channel is communicated with the air port, and the air outlet channel is respectively communicated with the blast port of the air blower and the air outlet; the air inlet and the air outlet are in the same direction.

The blower assembly further comprises buffering assemblies arranged at two ends of the blower,

the buffer assembly is matched and fixed with the housing, so that the blower is suspended in the housing.

0 the blower has an air inlet side and an air outlet side, and the buffer assembly comprises a buffer component arranged on the air inlet side

The first buffer piece and the cover shell are matched to enclose the air inlet channel.

The inner wall of housing is provided with the constant head tank, first bolster is located in the constant head tank.

The first buffer piece is provided with a propping bulge protruding towards the inner wall of the housing, and the propping bulge is abutted against the inner wall of the housing.

And 5, a fixing protrusion is arranged on the air inlet side, and the first buffer piece is sleeved on the fixing protrusion.

The air blower is provided with an air inlet side and an air outlet side, the buffering assembly further comprises a second buffering piece arranged on the air outlet side, and the second buffering piece is respectively abutted to the air blower and the housing.

The air blowing assembly further comprises an air inlet extension pipe which is communicated with the air suction port of the air blower and the air inlet channel.

0 the housing includes upper housing and lower casing, upper housing with the lower casing encloses into and is used for installing the appearance chamber of air-blower, upper housing with be provided with the sealing member between the casing down.

The air inlet is arranged on the end face of the housing, the air blowing assembly further comprises an air outlet pipe, the outlet of the air outlet pipe forms the air outlet, and the air outlet pipe is arranged in a bent mode so that the air outlet coincides with the end face where the air inlet is located.

And 5, the air inlet comprises an oxygen inlet and an air inlet, and the oxygen inlet and the air inlet are communicated with the air inlet channel, so that oxygen and air are mixed in the air inlet channel and enter the blower.

The air inlet includes oxygen entry and air inlet, the inside extension passageway that still is provided with of housing, the inlet channel intercommunication the oxygen entry with the induction port of air-blower, the extension passageway intercommunication the air inlet with the induction port of air-blower, the extension passageway is crooked to be extended.

The cover shell is including corresponding the inlet end of the induction port of air-blower, and correspond the end of giving vent to anger of the tuyere of air-blower, the oxygen entry set up in give vent to anger the end, the cover shell includes shell body and interior casing, the air-blower is located inside the interior casing, inlet channel is located the shell body with between the interior casing, inlet channel follows give vent to anger the end and extend to the inlet end.

The housing is including corresponding the inlet end of the induction port of air-blower, and correspond the end of giving vent to anger of the tuyere of air-blower, air inlet set up in the end of giving vent to anger, the side of giving vent to anger of air-blower is provided with first bolster, the side of giving vent to anger of air-blower is provided with the second bolster, the extension passageway includes the second bolster with the first section of admitting air that the air-blower encloses, and be located the second section of admitting air in first bolster outer lane, the air loops through first section of admitting air with the second section of admitting air gets into the induction port of air-blower.

The utility model provides a breathing machine gas circuit module, includes the wind channel subassembly, still includes foretell air-blast subassembly, the wind channel subassembly includes the casing, be provided with the gas circuit of admitting air and giving vent to anger the gas circuit in the casing, the casing is provided with and is used for the installation cavity of air-blast subassembly, air-blast subassembly detachably is fixed in the installation cavity, so that the air inlet with the gas circuit intercommunication of admitting air, the gas outlet with the gas circuit intercommunication of giving vent to anger.

The air inlet circuit comprises an oxygen gas circuit and an air gas circuit, a mixing channel is further arranged in the shell, the air inlet circuit and the air gas circuit are communicated with the mixing channel, and the air inlet is communicated with the mixing channel so that air and oxygen can enter the air blowing assembly after being mixed in the mixing channel.

The air inlet air path is provided with a flow guide section, the flow guide section is provided with at least one air flow corner, and the air flow corner is larger than 180 degrees.

The mounting cavity is provided with an opening, the air blowing assembly can be put into the mounting cavity from the opening or taken out from the mounting cavity, and the butt joint ports of the air inlet path and the air outlet path are arranged on the inner wall of the mounting cavity on one side opposite to the opening.

The utility model provides a breathing machine, includes organism and lid, still includes foretell breathing machine gas circuit module, the lid can for the organism motion to open or cover closes the installation cavity.

Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:

1. this application will the air-blower and with the inlet channel of air-blower intercommunication and outlet channel integration in the housing, realized the modularized design to the key part in the breathing machine product, the air-blower and the gas circuit passageway of intercommunication air-blower can integrated the installation when installing and removing, and detach fast, greatly reduced the maintenance degree of difficulty, maintainer only need disassemble this module alone, and need not to touch the part of other gas circuits of breathing machine, and is simple and convenient, efficiency is higher, the after-sale maintenance cost of enterprise has been reduced.

In addition, this application with air-blast subassembly modular design, when maintaining, when carrying out the outside detection, only need to examine and repair the gas circuit connector of frock and the air inlet and the gas outlet intercommunication on the housing just can accomplish the detection, connect and detect very conveniently, saved and fixed and sealed operation alone to the air-blower. Moreover, still can regard as the modularization accessory to carry out mass production with the blast air subassembly, wholly change, this subassembly has been the qualified product of inspection of dispatching from the factory in addition, and to his airtight and performance be guaranteed the part, the direct mount can on the machine, convenient simple, easy operation.

The air inlet and the gas outlet of housing are located same one side, have further reduced the equipment degree of difficulty of air-blast subassembly with the gas circuit module, only need to install the air-blast subassembly to the gas circuit module along a certain direction, alright accomplish air inlet and respective intercommunication of gas outlet in step, have improved the installation effectiveness of air-blast subassembly greatly, improve maintenance personal's the experience of installing and removing.

2. As a preferred embodiment of the present application, the blower assembly further includes a buffer assembly, the buffer assembly is disposed at two ends of the blower, and the buffer assembly is fixed to the housing in a fitting manner, so that the blower is suspended in the housing. The air-blower is suspended in the housing, the air-blower self can not contact with housing direct contact, but the buffering subassembly and the housing contact through both ends, and realize the fixed of air-blower, thereby avoid the vibrations that the air-blower during operation produced to transmit to the housing, the buffering subassembly can carry out the energy-absorbing buffering to the vibrations of air-blower, thereby greatly reduced transmits the vibrations to the housing, reduce the noise that the air-blowing subassembly produced because of vibrations on the one hand, on the other hand can reduce the housing and lead to the problem of the sealed inefficacy of air inlet and gas outlet because of vibrations.

3. As a preferred embodiment of the present application, the air inlet is provided at an end surface of the housing, the blower assembly further includes an air outlet pipe, an outlet of the air outlet pipe forms an air outlet, and the air outlet pipe is bent so that the air outlet coincides with the end surface where the air inlet is located. This application realizes gas outlet and air inlet coplanar through the outlet duct of crooked setting, therefore is used for the opening that the air current flows to set up in housing one side or air-blower play gas side on the housing, has reduced open position's requirement to guarantee the interior outlet channel of housing regular, avoid outlet channel too buckle and influence the efficiency of giving vent to anger. The air outlet and the air inlet are positioned on the same plane, so when the housing is installed on the air circuit module, and the end face of the housing is abutted against the end face of the air circuit module, the air inlet and the air outlet are synchronously butted and communicated with each other, and the connection difficulty is reduced.

4. As a preferred embodiment of the present application, the air inlet comprises an oxygen inlet and an air inlet, the housing is further internally provided with an extended channel, the air inlet channel is communicated with the oxygen inlet and the air suction port of the blower, the extended channel is communicated with the air inlet and the air suction port of the blower, and the extended channel extends in a bent manner. The air inlet path of air is lengthened for air is admitted air and is tortuous relatively, plays fine baffling effect to the oxygen leakage when oxygen disperses, promotes the mixed oxygen performance of machine, reduces the oxygen leakage volume when mixing oxygen, and further reduction gas is made an uproar, improves the use comfort of machine. Meanwhile, the risk that the gas containing mixed oxygen leaks into the machine is reduced, and the risk of fire is reduced.

5. The application also discloses breathing machine gas circuit module, including the wind channel subassembly, still include foretell air blast subassembly, the wind channel subassembly includes the casing, is provided with the gas circuit that admits air and gives vent to anger the gas circuit in the casing, and the casing is provided with the installation cavity that is used for installing the air blast subassembly, and air blast subassembly detachably is fixed in the installation cavity to make the air inlet and admit air the gas circuit intercommunication, the gas outlet with give vent to anger the gas circuit intercommunication. When the air blower assembly inside the breathing machine needs to be dismounted for maintenance, the whole air circuit integrated module does not need to be dismounted, and the air blower assembly only needs to be dismounted, other parts of the air circuit module and an air circuit channel do not need to be dismounted, and the whole air circuit module is still in an original state, so that the mounting and dismounting difficulty of the air blower assembly is reduced, the service life of the air circuit module is ensured, and the problem of reduction of the service life caused by frequent mounting and dismounting is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a blower assembly according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the blower assembly of FIG. 1 from another perspective;

FIG. 3 is an exploded view of the blower assembly of FIG. 2;

FIG. 4 is a cross-sectional view of the blower assembly of FIG. 3;

FIG. 5 is an enlarged view of area A of FIG. 4;

FIG. 6 is a schematic view of the housing of another embodiment of the present application;

fig. 7 is a schematic view illustrating an internal structure of a blower assembly according to still another embodiment of the present application;

FIG. 8 is a schematic view of the construction of a housing according to yet another embodiment of the present application;

FIG. 9 is a schematic view of an installation of an air duct assembly and blower assembly according to an embodiment of the present application;

FIG. 10 is an exploded view of the structure of the duct assembly of FIG. 9;

FIG. 11 is a schematic structural view of the duct assembly of FIG. 9;

fig. 12 is a schematic structural diagram of an air path module according to an embodiment of the present application.

Wherein:

1, a housing; 11 an air inlet; 111 an oxygen inlet; 112 an air inlet; 113 sealing ring; 12 air outlet; 13 an upper shell; 14 a lower housing; 15 a seal member; 16 pressing plates; 17 positioning grooves; 18 an outer housing; 19 an inner housing;

2, a blower; 21 air suction port; 22 an air inlet extension pipe; 23 an intake passage; 24 extending the channel; 241 a first air inlet section; 242 a second air intake section; 25 fixing the projection;

3 a first buffer member; 31 abutting against the projection;

4 a second buffer member;

5, an air outlet pipe;

6, a shell; 61, an air inlet path; 62, air outlet; 63 installing a cavity;

7 an oxygen passage module;

8 air channel module.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and simplicity in description, and do not indicate or imply that the referenced devices or elements 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 this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. 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 this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. In the description herein, reference to the terms "implementation," "embodiment," "one embodiment," "example" or "specific example" or the like means 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 application. 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.

As shown in fig. 1 to 8, a blower assembly includes a housing 1 and a blower 2 disposed in the housing 1, the housing 1 is provided with an air inlet 11 and an air outlet 12, the housing 1 is internally provided with an air inlet channel 23 respectively communicated with the air inlet 11 and an air suction port 21 of the blower 2, and an air outlet channel respectively communicated with a blower port and the air outlet 12 of the blower 2; the inlet 11 and outlet 12 are oriented in the same direction.

Preferably, as shown in fig. 3, sealing rings 113 are provided at both the gas inlet 11 and the gas outlet 12.

This application will air-blower 2 and with the inlet channel 23 and the air outlet channel integration of air-blower 2 intercommunication in housing 1, the modularized design to the key part in the breathing machine product has been realized, the air course passageway of air-blower 2 and intercommunication air-blower 2 can the integrated installation when installing and removing, and detach fast, greatly reduced the maintenance degree of difficulty, maintainer only need disassemble this module alone, and need not to touch the part of other gas circuit of breathing machine, and is simple and convenient, the efficiency is higher, the after-sale maintenance cost of enterprise has been reduced.

In practical applications, in a gas circuit module of a ventilator, the blower 2 is used as a key power component of the machine, the service life of the blower 2 is limited, about 15000 hours, and the life cycle of medical instruments is generally about 10 years, so for the key component of the blower 2, the performance of the blower needs to be periodically detected every year, and if the performance of the blower is reduced, a new blower 2 needs to be replaced. At this time, when the air blower 2 is disassembled, the whole air path module does not need to be disassembled completely, only the air blowing component needs to be disassembled, other parts of the air path system do not need to be disassembled, and the whole interior is still in an original state.

In addition, this application with air-blast subassembly modular design, when maintaining, when carrying out the outside detection, only need to examine and repair the gas circuit connector of frock and the air inlet 11 and the gas outlet 12 intercommunication on the housing 1 just can accomplish the detection, connect and detect very conveniently, saved and fixed and sealed operation alone to air-blower 2. Moreover, still can carry out the mass production with the blower assembly as the modularization accessory, wholly change, this subassembly has been the qualified product of inspection that dispatches from the factory in addition, and to his gas tightness and performance be guaranteed the part, directly install on the machine can, convenient simple, easy operation.

Carry out the modularized design with air-blower 2 and the gas circuit that carries on air-blower 2, in the use of breathing machine later stage, the change and the maintenance of the air-blower 2 of being convenient for, when maintenance or change air-blower 2, only demolish this module, change can, do not influence the connection and the fixing of whole inside frame, the dismantlement step of minimizing satisfies the change and the maintenance of key component. The design of the scheme greatly saves the maintenance cost and reduces the cost consumption of the life cycle of the whole product; the maintenance is completed quickly, and meanwhile, the time for using the equipment by the patient is also prolonged, which is very worthy for the patient depending on the breathing machine.

It should be noted that the air inlet 11 and the air outlet 12 are oriented in the same direction, that is, the axis of the air inlet 11 is parallel to the axis of the air outlet 12. That is to say, air inlet 11 and gas outlet 12 of housing 1 are located same one side, have further reduced the equipment degree of difficulty of air-blast subassembly with the gas circuit module, only need to install the air-blast subassembly to the gas circuit module along a certain direction, alright accomplish air inlet 11 and respective intercommunication of gas outlet 12 in step, have improved the installation effectiveness of air-blast subassembly greatly, improve maintenance personal's the experience of installing and removing.

It should be noted that, the opening position of the housing 1 is not limited in the present application, and in a preferred embodiment, as shown in fig. 2, the air inlet 11 is provided on an end surface of the housing 1, the air blowing assembly further includes an air outlet pipe 5, an outlet of the air outlet pipe 5 forms an air outlet 12, and the air outlet pipe 5 is bent.

However, the end surfaces where the air inlet 11 and the air outlet 12 are located may overlap or may be arranged in a stepped manner.

The terminal surface is seted up in the air inlet 11 of housing 1, realizes gas outlet 12 and 11 coplanar of air inlet through crooked outlet duct 5 that set up, therefore the opening that is used for the air current to flow out on housing 1 can set up in housing 1 one side or air-blower 2 side of giving vent to anger, has reduced open position's requirement to guarantee housing 1 inside outlet channel's regularity, avoid outlet channel too to buckle and influence the efficiency of giving vent to anger.

The air outlet 12 and the air inlet 11 are located on the same plane, so when the housing 1 is mounted to the air circuit module, and the end face of the housing 1 abuts against the end face of the air circuit module, the air inlet 11 and the air outlet 12 are synchronously connected in a butt joint mode, and connection difficulty is reduced.

When the air inlet 11 and the air outlet 12 are arranged in a stepped manner, the air inlet 11 and the air outlet 12 face the same direction but are not located on the same plane, so that the air inlet 11 and the air outlet 12 are arranged in a front-back manner, for example, the air inlet 11 is located in front of the air outlet 12, and the distance between the air inlet 11 and the butt end face of the air path module is smaller than the distance between the air outlet 12 and the butt end face of the air path module, so that the problem that the end face sealing is affected due to the too close distance between the air inlet 11 and the air outlet 12 is solved, and the sealing effect of the air inlet 11 and the air outlet 12 is improved by using stepped sealing.

Of course, the housing 1 may also be provided with an air outlet 12 on an end surface where the air inlet 11 is located, so that the air outlet channel inside the housing 1 extends in a zigzag manner from the air outlet side to the air inlet side of the blower 2, which is not particularly limited herein.

Specifically, as shown in fig. 2 and 3, the blowing assembly further comprises a pressure plate 16, and the air outlet pipe 5 is fixed on the housing 1 through the pressure plate 16, so that the sealing performance of the blowing assembly is effectively ensured.

As a preferred embodiment of the present application, as shown in fig. 4, the blower assembly further includes buffer assemblies disposed at both ends of the blower 2, and the buffer assemblies are fixed to the housing 1 in a fitting manner, so that the blower 2 is suspended in the housing 1.

Air-blower 2 suspends in housing 1, air-blower 2 self can not with housing 1 direct contact, but the buffering subassembly through both ends contacts with housing 1, and realize air-blower 2's fixing, thereby avoid the vibrations that air-blower 2 during operation produced to transmit to housing 1, the buffering subassembly can carry out the energy-absorbing buffering to air-blower 2's vibrations, thereby greatly reduced transmits the vibrations to housing 1, reduce the noise that the air-blower subassembly produced because of vibrations on the one hand, on the other hand can reduce housing 1 and lead to the sealed problem of losing efficacy of air inlet 11 and gas outlet 12 because of vibrations, this overall arrangement has realized the bilateral shock attenuation bearing structure of air-blower 2 front and back ends, effectively carry out the damping to air-blower 2.

The present embodiment is not particularly limited to the structure of the buffer assembly, and in one embodiment, the buffer assembly is made of an elastic material, such as silicon gel, and in another embodiment, the buffer assembly is made of a flexible material, such as buffer cotton, as long as the buffer assembly can buffer the vibration of the blower 2.

The tail (air outlet side) of the blower 2 can be positioned inside the housing 1 so that air flow in the air inlet channel 23 and the air outlet channel flows through the tail of the blower 2 to cool the blower 2, and the tail of the blower 2 can also be positioned outside the housing 1 to cool the blower by an external heat dissipation device.

Further, as shown in fig. 3 and 4, the blower 2 has an air inlet side and an air outlet side, the buffering assembly includes a first buffering member 3 disposed on the air inlet side, and the first buffering member 3 and the housing 1 cooperate to define an air inlet channel 23.

The first buffer piece 3 and the housing 1 are matched to form the air inlet channel 23, so that the structure inside the housing 1 is simplified, and the assembly is convenient. Preferably, the first buffer member 3 has an elastic structure, so that the stability of the air blower 2 can be ensured, the vibration is reduced, the sealing performance of the air inlet channel 23 can be ensured, and air leakage is prevented.

The connection of the outer circumference or the lateral edges of the first buffer 3 to the circumference of the blower 2 is in a sealed state and is hard connected, so that the functional requirements of the air inlet channel 23 are met.

Further, as shown in fig. 3 and 4, a fixing protrusion 25 is disposed on the air inlet side, and the first buffer 3 is sleeved on the fixing protrusion 25.

Preferably, the first buffer member 3 is of an annular structure, and the inner diameter of the first buffer member is smaller than the outer diameter of the fixing protrusion 25, so that the first buffer member 3 and the fixing protrusion 25 are in interference fit, the tightness of the fit of the first buffer member and the fixing protrusion is ensured, and the damping and buffering effects of the first buffer member 3 are improved.

In a preferred embodiment, as shown in fig. 4 and 5, the inner wall of the casing 1 is provided with a positioning groove 17, and the first buffer member 3 is located in the positioning groove 17.

As shown in fig. 4, the groove wall of the positioning groove 17 can restrict the position of the first cushion member 3 so that the first cushion member 3 is firmly fixed in the positioning groove 17 without moving, thereby improving the positional stability of the first cushion member 3 and the blower 2. Simultaneously, the cell wall of constant head tank 17 still forms the extrusion to first bolster 3, makes it take place elastic deformation, makes its contact with housing 1 and air-blower 2 inseparabler, improves the shock attenuation effect.

Further, as shown in fig. 5, the first buffer member 3 has an abutting protrusion 31 protruding toward the inner wall of the housing 1, and the abutting protrusion 31 abuts against the inner wall of the housing 1.

The abutting protrusion 31 abuts against the inner wall of the housing 1, the abutting force of the first buffer member 3 on the inner wall of the housing 1 in the area is increased, meanwhile, the local part of the first buffer member 3 is further deformed, the abutting of the first buffer member 3 and the inner wall of the housing 1 is more tight, the sealing effect is improved, and relative sliding is prevented.

As a preferred embodiment of the present invention, as shown in fig. 3 and 4, the blower 2 has an air inlet side and an air outlet side, the buffering assembly further includes a second buffering member 4 disposed on the air outlet side, and the second buffering member 4 abuts against the blower 2 and the housing 1, respectively.

The second buffer part 4 is fixedly connected with the air blower 2 in a hard mode, the outer ring of the second buffer part 4 is provided with a buffer structure, the second buffer part is in flexible connection with the inner wall of the housing 1, and the fixing and buffering functions of the air blower 2 are effectively achieved.

Preferably, as shown in fig. 4, the blower unit further includes an intake extension pipe 22, and the intake extension pipe 22 communicates the intake port 21 and the intake passage 23 of the blower 2.

The extension pipe 22 that admits air can prolong the route of admitting air, and the mode through lengthening the gas circuit reduces the noise on the one hand, and on the other hand increases the oxygen and reveals the degree of difficulty, plays fine frustrating effect to the oxygen leakage when oxygen disperses, promotes the mixed oxygen performance of machine.

As shown in fig. 4, the first buffer member 3 is connected to the air inlet extension pipe 22 to form an air inlet channel 23 with the inner wall of the housing 1, and the air flow enters the air inlet channel 23 inside the housing 1 from the air inlet 11, is sucked by the blower 2 for pressurization, and then enters the air outlet pipe 5, thereby completing the design of the air flow path. The air inlet extension pipe 22 is in sealing connection with the air blower 2 to ensure the air tightness of a passage of the air inlet extension pipe, and the inner ring of the first buffer piece 3 is in flexible connection with the air inlet extension pipe 22 to play a role in reducing or eliminating the vibration of the air blower 2.

In a preferred embodiment of the present application, as shown in fig. 3, the housing 1 includes an upper casing 13 and a lower casing 14, the upper casing 13 and the lower casing 14 enclose a cavity for mounting the blower 2, and a sealing member 15 is disposed between the upper casing 13 and the lower casing 14.

The housing 1 is a split structure, so that parts such as the internal air blower 2 and the like can be conveniently installed, and after the upper shell and the lower shell are fixed, the sealing piece 15 between the upper shell and the lower shell is extruded, so that the connection of the upper shell and the lower shell is sealed, and the shock absorption is realized.

Preferably, the upper housing 13 and the lower housing 14 are respectively provided with displacement limiting steps, which cooperate to form a fixation for the seal 15 and limit the relative movement of the upper housing 13 and the lower housing 14.

In the present embodiment, the connection manner of the upper housing 13 and the lower housing 14 is not particularly limited, and as shown in fig. 3, fixing holes may be respectively provided in the upper housing 13 and the lower housing 14, and the fixing holes may be fixed by a fastening member (such as a screw) penetrating through the fixing holes, or may be fixed by clipping, screwing, or the like.

It should be noted that the structure and number of the intake port 11 and the intake passage 23 are not particularly limited in the present application, and may be one of the following embodiments:

the first implementation mode comprises the following steps: in the present embodiment, as shown in fig. 8, oxygen and air share the air inlet 11, and the mixture of the oxygen and air enters the blower assembly through the air inlet 11.

The second embodiment: in the present embodiment, as shown in fig. 2, 4, and 6, the intake port 11 includes an oxygen inlet 111 and an air inlet 112, and both the oxygen inlet 111 and the air inlet 112 communicate with the intake passage 23 so that oxygen and air are mixed in the intake passage 23 to enter the blower 2.

The third embodiment is as follows: in the present embodiment, as shown in fig. 7, the air inlet 11 includes an oxygen inlet 111 and an air inlet 112, an extension duct 24 is further provided in the housing 1, the air inlet duct 23 communicates the oxygen inlet 111 with the air inlet 21 of the blower 2, the extension duct 24 communicates the air inlet 112 with the air inlet 21 of the blower 2, and the extension duct 24 extends in a curved shape.

The air inlet path of air is lengthened for air is admitted air and is tortuous relatively, plays fine baffling effect to the oxygen leakage when oxygen disperses, promotes the mixed oxygen performance of machine, reduces the oxygen leakage volume when mixing oxygen, and further reduction gas is made an uproar, improves the use comfort of machine. Meanwhile, the risk that the gas containing mixed oxygen leaks into the machine is reduced, and the risk of fire is reduced.

Further, as shown in fig. 7, the housing 1 includes an inlet end corresponding to the air inlet 21 of the blower 2, and an outlet end corresponding to the air outlet of the blower 2, the oxygen inlet 111 is disposed at the outlet end, the housing 1 includes an outer housing 18 and an inner housing 19, the blower 2 is located inside the inner housing 19, the inlet channel 23 is located between the outer housing 18 and the inner housing 19, and the inlet channel 23 extends from the outlet end to the inlet end.

As shown in fig. 7, the housing 1 includes an air inlet end corresponding to the air inlet 21 of the blower 2 and an air outlet end corresponding to the air outlet of the blower 2, the air inlet 112 is disposed at the air outlet end, the air inlet side of the blower 2 is provided with the first buffer 3, the air outlet side of the blower 2 is provided with the second buffer 4, the extension channel 24 includes a first air inlet section 241 surrounded by the second buffer 4 and the blower 2 and a second air inlet section 242 located at the outer ring of the first buffer 3, and the air sequentially passes through the first air inlet section 241 and the second air inlet section 242 and enters the air inlet 21 of the blower 2.

The arrangement mode of the extension channel 24 effectively extends the air path in the limited space inside the housing 1, thereby saving the space inside the housing 1 and improving the space utilization rate.

Specifically, as shown in fig. 7, the oxygen gas flow enters the oxygen inlet 112 from the air outlet end of the housing 1, and then winds back to the air inlet end through the air inlet channel 23 to enter the air inlet 21 of the blower 2; the air current then gets into through the air inlet 112 of the end of giving vent to anger, gets into the tail cavity of air-blower 2, and the first section 241 of admitting air in the middle of the whole cylinder surface of tail portion of air-blower 2 and second bolster 4 flows through from air-blower 2 organism border, and the second section 242 of admitting air of reentrant first bolster 3 outer lane is admitted air to the extension pipe 22 of admitting air of flowing through, gets into the induction port 21 of air-blower 2, and air-blower 2 pressure boost air-out to outlet duct 5 to with the gas circuit intercommunication of giving vent to anger, convey to patient's end.

As shown in fig. 9 to 12, the present application further discloses a breathing machine gas circuit module, which includes an air duct assembly and further includes the above-mentioned blower assembly, the air duct assembly includes a housing 6, an air inlet gas circuit 61 and an air outlet gas circuit 62 are provided in the housing 6, the housing 6 is provided with an installation cavity 63 for installing the blower assembly, and the blower assembly is detachably fixed in the installation cavity 63, so that the air inlet 11 is communicated with the air inlet gas circuit 61, and the air outlet 12 is communicated with the air outlet gas circuit 62.

It should be noted that the communication between the air inlet 11 and the air inlet path 61, and the communication between the air outlet 12 and the air outlet path 62 may be direct communication or indirect communication, and are not limited herein.

When the air blower assembly inside the respirator needs to be dismounted for maintenance, the whole air circuit integrated module does not need to be dismounted, and the air blower assembly only needs to be dismounted, other parts of the air circuit module and an air circuit channel do not need to be dismounted, and the whole air circuit module is still in an original state, so that the mounting and dismounting difficulty of the air blower assembly is reduced, the service life of the air circuit module is ensured, and the problem of reduction of the service life caused by frequent mounting and dismounting is avoided.

It should be noted that, as shown in fig. 10, the air intake path 61 may be provided with one or more passages, which are respectively communicated with the high-pressure and/or low-pressure oxygen passage module 7 and/or the air passage module 8.

In a preferred embodiment, the air inlet path 61 includes an oxygen path and an air path, the housing 6 further has a mixing channel, the air inlet path and the air path are both communicated with the mixing channel, and the air inlet 11 is communicated with the mixing channel, so that the air and the oxygen enter the blower assembly after being mixed in the mixing channel.

Preferably, the air inlet path 61 has a flow guiding section, and the flow guiding section is provided with at least one air flow corner, and the air flow corner is greater than 180 degrees.

The length of the air path channel is prolonged by bending to form the air flow corner, and the effect of reducing noise is achieved. Preferably, the air inlet path 61 is further provided with an air inlet filter for filtering impurities such as bacteria in the air flow.

In a preferred embodiment, as shown in fig. 9 to 12, the installation cavity 63 has an opening, the blower assembly can be put into the installation cavity 63 or taken out from the installation cavity 63 through the opening, and the butt-joint ports of the air inlet path 61 and the air outlet path 62 are both arranged on the inner wall of the installation cavity 63 on the side opposite to the opening.

The installation direction of air blast subassembly is unanimous with air inlet 11, 12 butt joint directions in gas outlet, and then makes when installing the air blast subassembly, installs the air blast subassembly to installation cavity 63 in from the opening, makes behind housing 1 terminal surface and the looks butt of installation cavity 63 diapire, has accomplished the installation of air blast subassembly promptly, has also accomplished the intercommunication of air inlet 11 with inlet gas circuit 61 simultaneously to and the intercommunication of gas outlet 12 with the gas circuit 62 of giving vent to anger. Thereby simplifying the installation steps and improving the efficiency of the assembly of the air blowing component and the communication with the air channel.

The application also discloses a breathing machine, including organism and lid, still include foretell breathing machine gas circuit module, the lid can for the organism motion to open or the lid closes installation cavity 63.

When the organism was opened in the lid motion, the opening of installation cavity 63 exposed for the staff can directly take out the air blast subassembly in with installation cavity 63 through the opening, perhaps with the air blast subassembly through the opening installation to installation cavity 63 in, and need not to dismantle other parts of gas circuit module, has reduced the degree of difficulty of installing and removing of air blast subassembly, improves and installs and remove efficiency.

This application does not do specific limit to the motion mode of lid, for example, the lid can be connected with organism detachable to make the lid pull down from the organism, open installation cavity 63, if again, the lid also can rotate with the organism to be connected, so that the lid can rotate installation cavity 63 that opens and shuts.

Where not mentioned in this application, this may be achieved using or taking advantage of existing technology.

All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (19)

1. A blower assembly comprising a housing and a blower disposed within the housing,

the cover shell is provided with an air inlet and an air outlet, and an air inlet channel and an air outlet channel are arranged in the cover shell, wherein the air inlet channel is respectively communicated with the air inlet and an air suction port of the air blower, and the air outlet channel is respectively communicated with a blast port of the air blower and the air outlet; the air inlet and the air outlet are in the same direction.

2. The blower assembly of claim 1,

the air blowing assembly further comprises buffering assemblies, the buffering assemblies are arranged at two ends of the air blower and are matched and fixed with the housing, so that the air blower is suspended in the housing.

3. The blower assembly of claim 2,

the air blower is provided with an air inlet side and an air outlet side, the buffering assembly comprises a first buffering piece arranged on the air inlet side, and the first buffering piece and the housing are matched to enclose the air inlet channel.

4. The blower assembly of claim 3,

the inner wall of housing is provided with the constant head tank, first bolster is located in the constant head tank.

5. The blower assembly of claim 4,

the first buffer piece is provided with a propping bulge protruding towards the inner wall of the housing, and the propping bulge is abutted against the inner wall of the housing.

6. The blower assembly of claim 3,

the air inlet side is provided with a fixing protrusion, and the first buffer piece is sleeved on the fixing protrusion.

7. The blower assembly of claim 2,

the air blower is provided with an air inlet side and an air outlet side, the buffering assembly further comprises a second buffering piece arranged on the air outlet side, and the second buffering piece is respectively abutted to the air blower and the housing.

8. The blower assembly of claim 2,

the air blowing assembly further comprises an air inlet extension pipe, and the air inlet extension pipe is communicated with an air suction port of the air blower and the air inlet channel.

9. The blower assembly of claim 1,

the housing comprises an upper shell and a lower shell, the upper shell and the lower shell are enclosed to form a containing cavity for installing the air blower, and a sealing element is arranged between the upper shell and the lower shell.

10. The blower assembly of claim 1,

the air inlet is formed in the end face of the housing, the air blowing assembly further comprises an air outlet pipe, an outlet of the air outlet pipe forms the air outlet, and the air outlet pipe is arranged in a bent mode so that the air outlet is overlapped with the end face where the air inlet is located; or,

the end faces where the air outlet and the air inlet are located are arranged in a step shape.

11. The blower assembly of claim 1,

the air inlet comprises an oxygen inlet and an air inlet, and the oxygen inlet and the air inlet are both communicated with the air inlet channel so that oxygen and air are mixed in the air inlet channel and enter the blower.

12. The blower assembly of claim 1,

the air inlet includes oxygen entry and air inlet, the inside extension passageway that still is provided with of housing, the inlet channel intercommunication the oxygen entry with the induction port of air-blower, the extension passageway intercommunication the air inlet with the induction port of air-blower, the extension passageway is crooked to be extended.

13. The blower assembly of claim 12,

the housing is including corresponding the inlet end of the induction port of air-blower, and correspond the end of giving vent to anger of the tuyere of air-blower, oxygen inlet set up in give vent to anger the end, the housing includes shell body and interior casing, the air-blower is located inside the interior casing, inlet channel is located the shell body with between the interior casing, inlet channel follows give vent to anger the end and extend to the inlet end.

14. The blower assembly of claim 12,

the housing is including corresponding the inlet end of the induction port of air-blower, and correspond the end of giving vent to anger of the tuyere of air-blower, air inlet set up in the end of giving vent to anger, the side of giving vent to anger of air-blower is provided with first bolster, the side of giving vent to anger of air-blower is provided with the second bolster, the extension passageway includes the second bolster with the first section of admitting air that the air-blower encloses, and be located the second section of admitting air in first bolster outer lane, the air loops through first section of admitting air with the second section of admitting air gets into the induction port of air-blower.

15. A breathing machine gas circuit module comprises a wind channel component and is characterized in that,

the blower assembly of any one of claims 1-14, further comprising a housing, wherein the housing has an air inlet path and an air outlet path, the housing has a mounting cavity for mounting the blower assembly, the blower assembly is detachably secured in the mounting cavity so that the air inlet is communicated with the air inlet path and the air outlet is communicated with the air outlet path.

16. The ventilator circuit module of claim 15,

the air inlet circuit comprises an oxygen gas circuit and an air gas circuit, a mixing channel is further arranged in the shell, the air inlet circuit and the air gas circuit are communicated with the mixing channel, and the air inlet is communicated with the mixing channel so that air and oxygen can enter the air blowing assembly after being mixed in the mixing channel.

17. The ventilator circuit module of claim 15,

the air inlet air path is provided with a flow guide section, the flow guide section is provided with at least one air flow corner, and the air flow corner is larger than 180 degrees.

18. The ventilator circuit module of claim 15,

the mounting cavity is provided with an opening, the air blowing assembly can be put into the mounting cavity from the opening or taken out from the mounting cavity, and the butt joint ports of the air inlet path and the air outlet path are arranged on the inner wall of the mounting cavity on one side opposite to the opening.

19. A respirator, which comprises a machine body and a cover body and is characterized in that,

the ventilator circuit module of any of claims 15-18, further comprising a cover movable relative to the body to open or close the mounting cavity.

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