CN209519211U - Gas filtering component and ventilation therapy equipment - Google Patents

Abstract

The utility model discloses a kind of gas filtering components and ventilation therapy equipment.Gas filtering component is connected on the gas passage of ventilation therapy equipment, gas filtering component includes: shell, shell has gas inlet end and gas outlet end, gas inlet end includes the first cover board at least one air inlet, and gas outlet end includes the second lid at least one venthole；And it is mounted on the intracorporal multiple filtering units of shell, multiple filtering units are used to filter the breathing gas into respiratory ventilation equipment, multiple filtering units include the first gas filter element and second gas filter element along airflow direction setting, first gas filter element is coarse filter, and second gas filter element is fine filtrator；Coarse filter is positioned as the gas inlet end than fine filtrator closer to shell.

Description

Gas filtering component and ventilation therapy equipment

Technical field

The utility model relates to ventilation therapy fields, more particularly to gas filtering component and ventilation therapy equipment.

Background technique

The problem of influence of the current indoor air quality to human health has become World Focusing.With item of living and work The gradually improvement of part, the movable time is also constantly extending urban population indoors, therefore room air pollution is to directly affect An important factor for human health.

In the case where environment is contaminated, there can be a large amount of dust in air, what people sucked when breathing is not pure Net air but dust, these dust are lived on people and human health has serious influence.People is in eupnea, breathing Road can obstruct most of particulate matter and foreign matter, but for the patient of wearing ventilator, due to the gas pressure of ventilator output Power is much larger than normal indoor gas pressure, when the gas of patient is conveyed to by ventilator at this time by respiratory tract, respiratory tract pair The filtering of foreign matter and cleaning action are significantly reduced in gas.Based on this reason, most of ventilators can all be installed in air intake Air filter, such air filter primarily serve the function of foreign matter in the filtering of assisted respiartion road and clean air, In the part that plays a major role be filtering element for air filter.

As shown in Figure 1, but existing ventilator 100` all only installation coarse filtration filter core 20` directly on air intake duct 30`, Protective shell 10` is set in the external of filter core 20`10` again, the filtration core 20` of this structure is easy to deform in air intake duct 30`, lead Later period poor filtration effect is caused, and coarse filtration only has been carried out to air, it still cannot be complete to now aerial many fine particles Full filtering.

Utility model content

The purpose of this utility model is to provide for a kind of gas filtering component and ventilation therapy equipment, to solve existing skill In art the technical issues of the poor filtration effect of ventilation therapy equipment.

To achieve the goals above, on the one hand the utility model provides a kind of gas filtering component, is connected in ventilation therapy On the gas passage of equipment, gas filtering component includes: shell, and shell includes gas inlet end and gas outlet end, gas into Mouth end includes the first cover board at least one air inlet, and gas outlet end includes the second lid at least one venthole Plate；And the intracorporal multiple filtering units of shell are mounted on, multiple filtering units are set for filtering into respiratory ventilation Standby breathing gas, multiple filtering units include the first gas filter element and second gas mistake along airflow direction setting Unit is filtered, first gas filter element is coarse filter, and second gas filter element is fine filtrator；Coarse filter is positioned as comparing Gas inlet end of the fine filtrator closer to shell.

Further, the first cover board includes multiple air inlets, and the second cover board includes one or more ventholes, air inlet Quantity is more than the quantity of venthole.

Further, the ventilation section of gas inlet end is greater than the ventilation section of gas outlet end.

Further, gas filtering component further includes the gear being mounted between the first cover board and first gas filter element There is airspace between the inner wall of plate, baffle and shell.

Further, gas outlet end is in funnel shaped.

Further, it is provided with muscle between first gas filter element and second gas filter element, so that the first mistake Filtering between unit and the second filter element has default spacing.

Further, case inside is provided with multiple fixed structures corresponding with multiple filtering units, Duo Gegu Determine that there is default spacing between structure.

Further, the shell of gas filtering component further includes connecting component, and connecting component is configured to gas filtration group Part is connect with the gas feed of ventilation therapy equipment；Coupling part includes the locating detent on rear side of shell and the left side positioned at shell Snap finger is pressed on side or right side.

Further, second gas filter is the air filtration cotton for filtering PM2.5.

The utility model additionally provides a kind of ventilation therapy equipment, and including above-mentioned gas filtering component, ventilation therapy is set Standby includes shell, and gas filtering component is removably mounted on the outer side of shell of ventilation therapy equipment；Air inlet is provided on shell Mouthful, the second cover board of gas filtering component is connected to air inlet.

Gas filtering component provided by the utility model is connected on the gas passage of ventilation therapy equipment, compared to existing There are the filtration members of technology, filtering unit is all set in the shell being separately provided by the gas filtering component of the utility model It is interior, it can prevent high pressure gas from filtering unit is blown deformation in the gas passage of ventilation therapy equipment or is blown into well Risk in the gas passage of ventilation therapy equipment；And pass through the multi-filtering of setting coarse filter and fine filtrator, Neng Gouti The filter efficiency of high gas filtering component.

Detailed description of the invention

Fig. 1 is the schematic diagram of the filter structure of ventilator in the prior art；

Fig. 2 is that the gas filtering component of the utility model is mounted on the structural schematic diagram of ventilation therapy equipment；

Fig. 3 is the structural schematic diagram of the gas filtering component of the utility model；

Fig. 4 is the decomposition diagram at the first visual angle of the gas filtering component of the utility model；

Fig. 5 is the decomposition diagram at the second visual angle of the gas filtering component of the utility model；

Fig. 6 is the structural schematic diagram of the second cover board of the gas filtering component of the utility model；

Fig. 7 is the structural schematic diagram of the gas filtering component of the utility model.

Description of symbols

100, gas filtering component；300, ventilation therapy equipment；10, the first cover board；20, the second cover board；30, first gas Filter element；31, air inlet；40, second gas filter element；41, venthole；22, snap finger is pressed；23, locating detent.

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the utility model Sign can be combined with each other.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", etc. instructions orientation or positional relationship To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage Solution is limitations of the present invention.In addition, " inside and outside " refers to the inside and outside of the profile relative to each component itself.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.

As shown in Fig. 2 to 7, the utility model provides a kind of gas filtering component 100, is connected in ventilation therapy equipment 300 Gas passage on, gas filtering component 100 includes: shell, and shell has gas inlet end and gas outlet end, gas feed End includes the first cover board 10 at least one air inlet 11, and gas outlet end includes the at least one venthole 21 Two cover boards 20；And the intracorporal multiple filtering units of shell are mounted on, multiple filtering units enter breathing for filtering The breathing gas of aeration equipment, multiple filtering units include the first gas filter element 30 and the along airflow direction setting Two filtering units 40, first gas filter element 10 are coarse filter, and second gas filter element 20 is fine filtrator；Slightly Filter is positioned as the gas inlet end than fine filtrator closer to shell.Gas filtering component 100 provided by the utility model, It is connected on the gas passage of ventilation therapy equipment 300, filtration members compared to the prior art, the gas filtration of the utility model Filtering unit is all set in the shell being separately provided by component 100, and the second cover board of shell can prevent height well Filtering unit is blown deformation by body of calming the anger；And by the multi-filtering of setting coarse filter and fine filtrator, gas can be improved The filter efficiency of body filter assemblies.

Specifically, gas filtering component 100 can be detachably connected with the gas feed of ventilation therapy equipment 300.

Gas filtering component 100 may include shell and multiple filtering units (for example, first gas filter element 30, Second gas filter element 40 etc.).In some embodiments, breathing gas (for example, environmental gas) is via gas filtering component Into ventilation therapy equipment 300 (for example, working as gas boosting unit 210 in operation).Gas filtering component 100 is (for example, first Filtering unit 30, second gas filter element 40 etc.) it may filter that the breathing gas into ventilation therapy equipment 300.One In a little embodiments, multiple filtering units can filter the breathing gas of different level.

As shown in Figures 2 and 3, shell may include gas access end and gas outlet end.Gas access end may include the first lid Plate 10, gas outlet end may include the second cover board 20.

Gas filtering component 100 can have staged or tapered three-dimensional structure.In some embodiments, gas filtering component 100 can have the shape of cuboid.In some embodiments, gas access end can have size identical with gas outlet end. In some embodiments, gas access end can have the size bigger than gas outlet end, so as to increase inflow gas The air inflow of the breathing gas of filter component 100.In some embodiments, gas outlet end can be with ventilation therapy equipment 300 gas feed connection, gas outlet end are in funnel shaped, enable to gas circulation more smooth, and are more convenient to be mounted on In ventilation therapy equipment 300.In some embodiments, the cross section of the inlet end of gas filtering component 100 is (perpendicular to tidal air The inflow direction of body) cross section of gas outlet end can be greater than, it means that and the breathing area of inlet end is greater than outlet side Breathing area.

First cover board 10 may include at least one air inlet 11, and the hole of the first cover board 10 can be configured to convenient for breathing gas It flows through the first cover board 10 and reaches filtering unit to be filtered.It, can be with after the air inlet 11 for flowing through the first cover board 10 Breathing gas is filtered by filtering unit.Then, the breathing gas of filtering can flow through the second cover board 20 and enter ventilation The gas feed of therapeutic equipment 300.Second cover board 20 may include at least one venthole 21, the venthole 21 of the second cover board 20 It can be configured to flow through the second cover board 20 convenient for the breathing gas of filtering and reach gas feed.

In one embodiment, the first cover board 10 includes multiple air inlets 11, and the second cover board 20 goes out including one or more Stomata 21, the quantity of air inlet 11 is more than the quantity of venthole 21, so that air inlet area is greater than outlet area.

In some embodiments, the hole of the first cover board 10 and/or the second cover board 20 can have bar shaped, circle, rectangle, three Angular, diamond shape, hexagon, star or similar shape, or any combination thereof.Hole can have relatively small size, so that not The finger of user can be put into.In some embodiments, the hole of the first cover board 10 and/or the second cover board 20 can be uniformly distributed. As shown in Figures 4 and 5,198 circular holes are evenly distributed on the first cover board 10, form the array of 11 rows 18 column.In Fig. 6 Shown in, 24 circular holes are evenly distributed on the second cover board 20, form the array of 4 rows 6 column.It should be noted that in some embodiments In, the hole of the first cover board 10 and/or the second cover board 20 can be unevenly distributed.In some embodiments, the first cover board 10 and/ Or second the hole of cover board 20 can help to adjust the air-flow of the breathing gas into the gas feed 112 of ventilation therapy equipment 300, To which the noise that air-flow generates may be reduced.

In some embodiments, first gas filter element 30 can be coarse filter.Coarse filter can be close to the first lid Plate 10 positions.Coarse filter may include coarse filtration sponge (also referred to as coarse filtration foam).In some embodiments, first gas mistake Filtering unit 30 may include one or more layers coarse filtration sponge (or multiple filtration film).Coarse filtration sponge can be configured to filter or adsorb Into the solid particle (such as dust, resin, pollen etc.) in the breathing gas of pneumatic filter component 100.In some implementations In scheme, the size of the particle filtered by coarse filtration sponge can be greater than 5 microns.In some embodiments, coarse filter can also wrap Fixed part is included, which is configured to coarse filtration sponge is fixed in the housing.

In some embodiments, second gas filter element 40 can be fine filter.Fine filter may include thin It filters sponge (also referring to thin filter foam).In some embodiments, second gas filter element 40 may include one or more layers essence Thin filtering sponge (or multilayer ultrafiltration membrane).Fine filtering sponge can be configured to filter or adsorb the solid that size is greater than 1 micron Particle.In some embodiments, second gas filter is the air filtration cotton that may filter that PM2.5.Coarse filtration sponge and/or fine filtering The example components of sponge may include synthetic fibers, polyester fiber, glass fibre etc., or any combination thereof.In some embodiments In, fine filter may also include fixed part, which is configured to thin filtering sponge is fixed in the housing.Some In embodiment, shell may include multiple frames, is configured to fixed first gas filter element 30 and/or second gas filtering is single Member 40.

In some embodiments, it is provided with muscle between first gas filter element 30 and second gas filter element 40, So as to have default spacing between first gas filter element 30 and gas second gas filter element 40, muscle on the one hand can So that having default spacing between first gas filter element 30 and second gas filter element 40, make gas filtering component 100 Interior air-flow is more stable；On the other hand first gas filter element 30 and second gas filter element 40 can be prevented in high pressure gas It is deformed under the action of body.If muscle is in cruciformity, rice shape or other similar structure, the thickness of muscle is first gas mistake Filter the default spacing between unit 30 and gas second gas filter element 40.

In some embodiments, case inside is provided with multiple fixed structures corresponding with multiple filtering units, There is default spacing between multiple fixed structures.Fixed structure enables to have between two adjacent filtering units pre- If spacing, keep the air-flow in gas filtering component 100 more stable；On the other hand filtering unit can be prevented in high pressure gas Under the action of deform.Fixed structure can be the groove for being disposed around the circle of inner walls one, and the periphery of filtering unit can To be connected in groove.In present embodiment, case inside is provided with the first fixation of fixed first gas filter element 10 Second fixed structure of structure and fixed second gas filter element 20, between first fixed structure and the second fixed structure away from From the default spacing between first gas filter element 30 and gas second gas filter element 40.

Second gas filter element 40 can be mounted on behind first gas filter element 30 along airflow direction, i.e., thick mistake Filter is positioned as the gas inlet end than fine filtrator closer to shell.Breathing gas can first flow through first gas filter element 30, then pass through second gas filter element 40.In some embodiments, first gas filter element 30 and second gas filtering Unit 40 can be separately mounted in shell.In some embodiments, the replacement cycle of first gas filter element 30 can be with Less than second gas filter element 40.In some embodiments, first gas filter element 30 and second gas filter element 40 Can be detachably connected with shell, being detachably connected may include snapping connection, and be threadedly coupled, hinge connection etc. or its is any Combination.

In some embodiments, the shell of gas filtering component 100 may also include connecting component, which is configured to Gas filtering component 100 is connect with the gas feed 112 of ventilation therapy equipment 300.As shown in fig. 7, coupling part can wrap Include the locating detent 23 being located on rear side of shell and positioned at the left side (or right side) of shell by snap finger 22.By pressing and/or keeping By snap finger 22, gas filtering component 100 can easily connect (or disconnected by user with (or coming from) ventilation therapy equipment 300 It opens).Therefore, a pair of of limit hole can be set in the two sides of gas feed, respectively with two sides by the cooperation of snap finger 22, so that gas Filter assemblies 100 can be fixed in ventilation therapy equipment 300.

It, can be in gas vent in order to ensure the sealed connection between gas filtering component 100 and ventilation therapy equipment 300 Sealing element (for example, silicone gasket) is set between end and the gas feed 112 of ventilation therapy equipment 300.For example, sealing member Part can be set at gas outlet end.As another example, the gas in ventilation therapy equipment 300 can be set in sealing element At body import 112.

In some embodiments, gas filtering component 100 may also include baffle (not shown).In some embodiments, it keeps off The area of plate can be less than the gas access end of shell.Baffle can be mounted on than filtering unit closer to gas access end In shell.Baffle can be fixed between the first cover board 10 and first gas filter element 30.Between baffle and the inner wall of shell Breathing gas can be made to filter from multiple sides (for example, four sides) inflow gas of baffle with airspace, such as baffle Device component 100, so as to reduce the noise generated by gas flowing.Baffle and the first cover board 10, baffle and first gas mistake Default spacing is all had between filter unit 30.

In some embodiments, gas filtering component 100 can be set ventilation therapy equipment 300 gas vent and exhale Between suction pipe.In some embodiments, gas outlet end can have funnel shaped, allow gas outlet end and respiratory siphon Connection.

The utility model additionally provides a kind of ventilation therapy equipment 300, including above-mentioned gas filtering component 100, ventilation Therapeutic equipment 300 includes shell, and gas filtering component 100 is removably mounted on the outer side of shell of ventilation therapy equipment 300；Outside Air inlet is provided on shell, the second cover board 20 of gas filtering component 100 is connected to air inlet.

Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model, It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model To various combinations of possible ways, no further explanation will be given.But these simple variants and combination equally should be considered as the utility model institute Disclosure belongs to the protection scope of the utility model.

Claims (10)

1. a kind of gas filtering component is connected on the gas passage of ventilation therapy equipment, which is characterized in that the gas filtration Component includes:

Shell, the shell include gas inlet end and gas outlet end, the gas inlet end include have at least one into First cover board of stomata, the gas outlet end include the second cover board at least one venthole；And

The intracorporal multiple filtering units of the shell are mounted on, the multiple filtering unit leads to for filtering to enter to breathe The breathing gas of gas equipment, the multiple filtering unit include the first gas filter element and the along airflow direction setting Two filtering units, the first gas filter element are coarse filter, and the second gas filter element is fine filtrator；

The coarse filter is positioned as the gas inlet end than the fine filtrator closer to the shell.

2. gas filtering component according to claim 1, which is characterized in that first cover board includes multiple air inlets, Second cover board includes one or more ventholes, and the quantity of the air inlet is more than the quantity of the venthole.

3. gas filtering component according to claim 2, which is characterized in that the ventilation section of the gas inlet end is greater than The ventilation section of the gas outlet end.

4. gas filtering component according to claim 1, which is characterized in that the gas filtering component further includes being fixed on Baffle between first cover board and the first gas filter element, has between the baffle and the inner wall of the shell Airspace.

5. gas filtering component according to claim 1, which is characterized in that the gas outlet end is in funnel shaped.

6. gas filtering component according to claim 1, which is characterized in that the first gas filter element and described the Be provided with muscle between two filtering units so that the first gas filter element and the second gas filter element it Between there is default spacing.

7. gas filtering component according to claim 1, which is characterized in that be provided on the inside of the shell and multiple institutes Corresponding multiple fixed structures of filtering unit are stated, there is default spacing between multiple fixed structures.

8. gas filtering component according to claim 1, which is characterized in that the shell of the gas filtering component further includes Connecting component, the connecting component are configured to for gas filtering component connecting with the gas feed of the ventilation therapy equipment；Institute State connecting component include locating detent on rear side of the shell and positioned at the left or right side of the shell by snap finger.

9. gas filtering component according to any one of claims 1 to 8, which is characterized in that the second gas filtering is single Member is the air filtration cotton of filtering PM2.5.

10. a kind of ventilation therapy equipment, including the described in any item gas filtering components of the claims 1 to 9, feature exist In the ventilation therapy equipment includes shell, and the gas filtering component is removably mounted on the ventilation therapy equipment Outer side of shell；

Air inlet is provided on the shell, the second cover board of the gas filtering component is connected to the air inlet.