CN104721980A - Breathing connector - Google Patents
Breathing connector Download PDFInfo
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- CN104721980A CN104721980A CN201510151142.2A CN201510151142A CN104721980A CN 104721980 A CN104721980 A CN 104721980A CN 201510151142 A CN201510151142 A CN 201510151142A CN 104721980 A CN104721980 A CN 104721980A
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- nostril
- hole
- valve
- suction
- tubular structure
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Abstract
The invention relates to a breaching connector which is convenient and fast to use and has the breathing flow distribution function. The breathing connector comprises a breathing flow distribution portion, nostril connectors and an inspiration catheter. The breathing flow distribution portion is connected with the nostril connectors and the inspiration catheter. The breathing flow distribution portion comprises a breathing hole, a flow distribution cavity, a cavity wall, an intake one-way valve, an inspiration hole, an expiration hole and an expiration one-way valve. Each nostril connector comprises a nostril sealing edge and a nostril catheter. The nostril sealing edges are used for fitting the edges of the nostrils of a user. The nostril catheters are located in the middles of the nostril sealing edges and used for communicating the nostrils of the user with the breathing hole. The inner cavity of the inspiration catheter is communicated with an inspiration hole.
Description
Technical field
The present invention relates to individual protective equipment, particularly a kind of for connect air processor and human body, there is the respiration connector breathing diverter function.
Background technology
Respiratory is that the mankind obtain oxygen and the Basic Ways of combustion gas from the external world.Due to the diseases such as allergy or air-polluting reason, human needs is breathed by air processor (such as air cleaner, oxygen instrument etc.).Respiration connector is air processor is the interface that user breathes and provide, and can avoid or reduce user and suck undressed air from the external world.
The respiration connector of oxygen instrument adopts four-way pipe usually, and wherein two are inserted nostril, and another two as air inlet, oxygen instrument relies on its power set by air Injection air inlet, and then inject user nostril.This respiration connector inserts nostril, constantly injects air, causes user to exhale not smooth, when user's Rapid inhalation, user can not be avoided to suck undressed air from the external world.
Breathing mask provides the better respiration connector of a kind of sealing property, is affixed on face by external margin, thus stops undressed air to enter.In order to ensure smooth breathing, this respiration connector forms a volume comparatively atmosphere chamber at face, and exhalation waste gas and the air after processing mix, and are again inhaled into, thus cause the effciency of respiratory to decline.In addition, the wet gas of exhalation causes facial air cavity comparatively moist, easily causes user's face uncomfortable, even allergic.
Summary of the invention
Object of the present invention comprise provide a kind of easily, have and breathe the respiration connector of diverter function, solved the aforementioned problems in the prior by following technical approach.
According to the present invention, a kind of respiration connector is provided, comprise and breathe distributary division, nostril connector, intake guide, breathe distributary division and connect nostril connector and intake guide respectively, breathe distributary division and comprise spiracle, branch chamber, chamber wall, breather cheek valve, suction hole, exhaling hole, expiratory one-way valve, nostril connector comprises nostril sealing the margin and nostril catheter, nostril sealing the margin is for the nostril margins of the user that fits, nostril catheter is positioned in the middle of the sealing the margin of nostril, for being communicated with user nostril and spiracle, the inner space suction hole of intake guide.
According to an exemplary embodiment of the present invention, described respiration connector, breathe distributary division and comprise a tubular structure, tubular structure is inner as branch chamber, the two ends of tubular structure are as suction hole, the side openings of tubular structure is as spiracle, and the other perforate of sidepiece of tubular structure is as exhaling hole.
According to an exemplary embodiment of the present invention, described respiration connector, breathes distributary division and comprises a tubular structure, and tubular structure is inner as branch chamber, the two ends of tubular structure are respectively as suction hole and exhaling hole, and the side openings of tubular structure is as spiracle.
According to an exemplary embodiment of the present invention, described respiration connector, breathe distributary division and comprise two tubular structures and distributary division fixator, tubular structure is inner as branch chamber, the two ends of tubular structure are respectively as spiracle and exhaling hole, the side openings of tubular structure is as suction hole, and distributary division fixator connects two tubular structures, makes the spiracle of two tubular structures can respectively towards two nostrils of user.
According to an exemplary embodiment of the present invention, described breather cheek valve, comprise inlet valve fixed part and suction valve chip, the part side of suction valve chip is fixed on the chamber wall inside suction hole by inlet valve fixed part, under non-suction condition, and suction valve chip laminating suction hole, block branch chamber and suction hole, under suction condition, suction valve chip leaves suction hole under the effect of draught head, thus is communicated with branch chamber and suction hole.
According to an exemplary embodiment of the present invention, described expiratory one-way valve, comprise outlet valve fixed part and expiration valve block, the part side of expiration valve block is fixed on the chamber wall outside exhaling hole by outlet valve fixed part, under non-expiration state, and expiration valve block laminating exhaling hole, block branch chamber and extraneous air, under expiration state, expiration valve block leaves exhaling hole under the effect of draught head, thus breath is discharged via exhaling hole.
According to an exemplary embodiment of the present invention, described nostril sealing the margin, adopts the cambered surface that front end is little, rear end is large, thus adapts to the change of user nostril size.
According to an exemplary embodiment of the present invention, described nostril sealing the margin, adopts silica gel or elastomeric material, and shape changes with user's nostril form, improves sealing when breathing and comfort level.
According to an exemplary embodiment of the present invention, described respiration connector, comprise respirator fixed part, respirator fixed part is connected with breathing distributary division or intake guide, stretch cord or buckle structure is adopted to be fixed on user's head, thus breathing distributary division is fixed on the bottom, nostril of user, and active force is applied to nostril connector, make the nostril of nostril sealing the margin laminating user.
According to an exemplary embodiment of the present invention, described respirator fixed part, comprises the ear card of adjustable position, is adjusted to correct position in use, be buckled in user ear.
According to an exemplary embodiment of the present invention, described respiration connector, it is characterized in that, exhaling hole comprises the hole of two half-oval shaped, there is the chamber wall of elongate in shape in the centre in two holes, expiratory one-way valve is made up of the valve block of a silica gel or elastomeric material, and valve block two sides comprise two joint-cuttings respectively, thus valve block can be installed between exhaling hole, and exhaling hole of fitting.
According to an exemplary embodiment of the present invention, improve a kind of manufacture as described in the method for breathing distributary division, silica gel or elastomeric material is adopted to make upper opening, the barrel structure of bottom closure, wherein upper opening is as spiracle, in cylinder, part is as branch chamber, barrel cuts out valve block, the part that the part adopting the mode of cutting sth. askew to make valve block inside barrel structure is compared outside barrel structure is given prominence to, and the side retaining valve block is connected in barrel, thus form breather cheek valve and suction hole, to cut at the bottom of cylinder and to retain a part of edge conjunction in barrel, thus formation exhaling hole, expiratory one-way valve, the non-cut-away portions of barrel forms chamber wall.
Accompanying drawing explanation
When reading the detailed description hereafter to exemplary embodiment by reference to the accompanying drawings, these and other objects, feature and advantage will become apparent.
Fig. 1. double hose respiration connector tangent plane schematic diagram.
Fig. 2. a kind of schematic diagram breathing distributary division.
Fig. 3. respiration connector schematic top plan view.
Fig. 4. single tube, bilateral air suction type respiration connector tangent plane schematic diagram.
Fig. 5. a kind of exhaling hole and adhered expiration valve block schematic diagram.
Fig. 6. the expiration valve block schematic diagram of a kind of exhaling hole and band buckle structure.
Fig. 7. single tube, one-sided air suction type respiration connector tangent plane schematic diagram.
Fig. 8. comprise the respiration connector schematic diagram of respirator fixed part.
Detailed description of the invention
Some illustrative embodiments below with reference to the accompanying drawings describe principle of the present invention and method.Should be appreciated that describing these embodiments is only used to enable those skilled in the art understand better and then realize the present invention, and not limit the scope of the invention by any way.
embodiment one
As shown in Figure 1, respiration connector comprises breathing distributary division (100), nostril connector (200), intake guide (300).
Breathe distributary division (100) and comprise two tubular structures and distributary division fixator.Tubular structure is inner as branch chamber (120), and outer wall is chamber wall (130).The two ends of tubular structure are respectively as spiracle (110) and exhaling hole (160), and the side openings of tubular structure is as suction hole (150).The inner side of the relative branch chamber (120) of suction hole (150) arranges breather cheek valve (140), the arranged outside expiratory one-way valve (170) of the relative branch chamber (120) of exhaling hole (160).
Breather cheek valve (140) comprises inlet valve fixed part and has flexible suction valve chip (such as rubber sheet, or the sheet metal of band spring), the part side of suction valve chip is fixed on the chamber wall (130) of suction hole (150) inner side by inlet valve fixed part, under non-suction condition, suction valve chip is fitted suction hole (150) under its own resilient effect, block branch chamber (120) and suction hole (150), under suction condition, suction valve chip leaves suction hole (150) under the effect of draught head, thus is communicated with branch chamber (120) and suction hole (150).
Expiratory one-way valve (170) comprises outlet valve fixed part and has flexible expiration valve block (such as rubber sheet, or the sheet metal of band spring), the part side of expiration valve block is fixed on the chamber wall (130) in exhaling hole (160) outside by outlet valve fixed part, under non-expiration state, expiration valve block is fitted exhaling hole (160) under its own resilient effect, block branch chamber (120) and extraneous air, under expiration state, expiration valve block leaves exhaling hole (160) under the effect of draught head, thus breath is discharged via exhaling hole (160).
Optionally, breathing distributary division (100) adopts silica gel or rubber-like elastic material to carry out integration manufacture production (as shown in Figure 2).First, made the barrel structure of upper opening, bottom closure by technology such as compression, extrusion molding, 3D printings, upper opening is as spiracle (110), and in cylinder, part is as branch chamber (120).Then, barrel cuts out rectangle valve block, the part adopting the mode of cutting sth. askew that the part of rectangle valve block inside barrel structure is compared outside barrel structure is given prominence to, the side retaining rectangle valve block is not cut and is connected in barrel, thus forms breather cheek valve (140) and suction hole (150).Finally, to cut at the bottom of cylinder and to retain a part of edge conjunction in barrel, thus forming exhaling hole (160), expiratory one-way valve (170).Wherein, the non-cut-away portions of barrel forms chamber wall (130).
Intake guide (300) side comprises four holes, as distributary division fixator, and its size and the outer net consistent size of breathing distributary division (100).By distributary division fixator, breathe distributary division (100) and can insert and be fixed on intake guide (300), make the inner space suction hole (150) of intake guide (300), and make spiracle (110) towards homonymy.Distributary division fixator can also block intake guide (300) inner chamber and extraneous air.If necessary, junction can increase sealing gasket, or bonding by glue.
Nostril connector (200) comprises nostril sealing the margin (210) and nostril catheter (220).Nostril sealing the margin (210) is for the nostril margins of the user that fits, and nostril catheter (220) is positioned in the middle of the sealing the margin of nostril.Nostril sealing the margin (210) adopts the cambered surface that front end is little, rear end is large, the half ellipsoidal surface of such as central aperture or taper seat, thus adapts to the change of user nostril size.The material of nostril sealing the margin (210) can adopt the elastomeric material of the softness such as silica gel, rubber, and shape changes with user's nostril form, thus the sealing improved when breathing and comfort level.
Nostril connector (200) connects the spiracle (110) of breathing distributary division (100) one end.In use, nostril catheter (220) is made to be communicated with user nostril and spiracle (110), to block user nostril and extraneous air.Nostril connector (200) can adopt the modes such as glue is bonding, cutting ferrule with the connected mode of breathing distributary division (100).Optionally, nostril connector (200) and breathing distributary division (100) carry out integration manufacture by technology such as compression, extrusion molding, 3D printings.It should be noted that integration manufactures will make the nostril catheter of nostril connector (220) and spiracle (110) merge physically, but still logically can carry out function division to it.Breathe the top view after the assembling of distributary division (100), nostril connector (200) and intake guide (300) as shown in Figure 3.
embodiment two
As shown in Figure 4, respiration connector comprises breathing distributary division (100), nostril connector (200), intake guide (300).
Breathe distributary division (100) and comprise a tubular structure.Tubular structure is inner as branch chamber (120), and outer wall is chamber wall (130).The two ends of tubular structure are as suction hole (150), and the side openings of tubular structure is as spiracle (110), and the other perforate of sidepiece of tubular structure is as exhaling hole (160).The inner side of the relative branch chamber (120) of suction hole (150) arranges breather cheek valve (140), the arranged outside expiratory one-way valve (170) of the relative branch chamber (120) of exhaling hole (160).
Breather cheek valve (140) comprises inlet valve fixed part and has flexible suction valve chip (such as rubber sheet, or the sheet metal of band spring), the part side of suction valve chip is fixed on the chamber wall (130) of suction hole (150) inner side by inlet valve fixed part, under non-suction condition, suction valve chip is fitted suction hole (150) under its own resilient effect, block branch chamber (120) and suction hole (150), under suction condition, suction valve chip leaves suction hole (150) under the effect of draught head, thus be communicated with branch chamber (120) and suction hole (150).
Expiratory one-way valve (170) comprises outlet valve fixed part and has flexible expiration valve block (such as rubber sheet, or the sheet metal of band spring), the part side of expiration valve block is fixed on the chamber wall (130) in exhaling hole (160) outside by outlet valve fixed part, under non-expiration state, expiration valve block is fitted exhaling hole (160) under its own resilient effect, block branch chamber (120) and extraneous air, under expiration state, expiration valve block leaves exhaling hole (160) under the effect of draught head, thus breath is discharged via exhaling hole (160).
Optionally, as shown in Figure 5, chamber wall (130) is round tube shape, and exhaling hole (160) comprises two discrete semiellipse holes, and expiratory one-way valve (170) is made up of the valve block of a silica gel or elastomeric material, for strip, there is flexible cambered surface.When deformation does not occur valve block, chamber wall (130) can be fitted in, cover exhaling hole (160) completely.Expiratory one-way valve (170) middle part, as outlet valve fixed part, can be adhered on the chamber wall (130) between two exhaling holes (160).
Optionally, as shown in Figure 6, chamber wall (130) is round tube shape, and exhaling hole (160) comprises two discrete semiellipse holes, expiratory one-way valve (170) is made up of the valve block of a silica gel or elastomeric material, for strip, there is flexible plane or cambered surface.As outlet valve fixed part in the middle part of valve block, valve block two sides comprise two joint-cuttings respectively, form buckle structure, thus make valve block can be installed between two exhaling holes (160), and laminating also covers exhaling hole (160) completely.
Intake guide (300) is connected to breathes distributary division (100) two ends, the inner space suction hole (150) of intake guide (300), thus cuts off with outside air.Optionally, junction adopts bassoon tubule cutting ferrule mode to connect, and can increase sealing gasket, or bonding by glue.Another possibility, intake guide (300) is the extension of breathing distributary division (100) tubular structure, and namely intake guide (300) carries out integrated making with breathing distributary division (100) tubular structure.
Nostril connector (200) structure is as follows: comprise nostril sealing the margin (210) and nostril catheter (220).Nostril sealing the margin (210) is for the nostril margins of the user that fits, and nostril catheter (220) is positioned in the middle of the sealing the margin of nostril.Nostril sealing the margin (210) adopts the cambered surface that front end is little, rear end is large, the half ellipsoidal surface of such as central aperture or taper seat, thus adapts to the change of user nostril size.The material of nostril sealing the margin (210) can adopt the elastomeric material of the softness such as silica gel, rubber, and shape changes with user's nostril form, thus the sealing improved when breathing and comfort level.
Nostril connector (200) connected mode is as follows: connect the spiracle (110) of breathing distributary division (100) sidepiece, in use, makes nostril catheter (220) be communicated with user nostril and spiracle (110), block user nostril and extraneous air.Nostril connector (200) can adopt the modes such as glue is bonding, cutting ferrule with the connected mode of breathing distributary division (100).Optionally, when manufacturing the tubular structure breathing distributary division (100), can extend the pipeline of vertical direction outward in spiracle (110), so that connect nostril connector (200).
embodiment three
As shown in Figure 7, respiration connector comprises breathing distributary division (100), nostril connector (200), intake guide (300).
Breathe distributary division (100) and comprise a tubular structure.Tubular structure is inner as branch chamber (120), and outer wall is chamber wall (130).The two ends of tubular structure are respectively as suction hole (150) and exhaling hole (160), and the side openings of tubular structure is as spiracle (110).The inner side of the relative branch chamber (120) of suction hole (150) arranges breather cheek valve (140), the arranged outside expiratory one-way valve (170) of the relative branch chamber (120) of exhaling hole (160).
Breather cheek valve (140) comprises inlet valve fixed part and has flexible suction valve chip (such as rubber sheet, or the sheet metal of band spring), the part side of suction valve chip is fixed on the chamber wall (130) of suction hole (150) inner side by inlet valve fixed part, under non-suction condition, suction valve chip is fitted suction hole (150) under its own resilient effect, block branch chamber (120) and suction hole (150), under suction condition, suction valve chip leaves suction hole (150) under the effect of draught head, thus be communicated with branch chamber (120) and suction hole (150).
Expiratory one-way valve (170) comprises outlet valve fixed part and has flexible expiration valve block (such as rubber sheet, or the sheet metal of band spring), the part side of expiration valve block is fixed on the chamber wall (130) in exhaling hole (160) outside by outlet valve fixed part, under non-expiration state, expiration valve block is fitted exhaling hole (160) under its own resilient effect, block branch chamber (120) and extraneous air, under expiration state, expiration valve block leaves exhaling hole (160) under the effect of draught head, thus breath is discharged via exhaling hole (160).
Intake guide (300) is connected to breathes distributary division (100) one end, makes suction hole (150) be communicated with intake guide (300) inner chamber, and cuts off with outside air.Optionally, junction adopts bassoon tubule cutting ferrule mode to connect, and can increase sealing gasket, or bonding by glue.Another possibility, intake guide (300) is the extension of breathing distributary division (100) tubular structure, that is, intake guide (300) carries out integrated making with breathing distributary division (100) tubular structure.
The structure of nostril connector (200) is identical with embodiment two with connected mode.
Because respiration connector will be connected to air processor in use, when air processor is fixed on face, respiration connector can be fixed on face simultaneously, make the nostril of nostril sealing the margin (210) laminating user.Optionally, above-mentioned three case study on implementation respiration connectors also can comprise respirator fixed part (400).As shown in Figure 8, respirator fixed part (400) is connected with breathing distributary division (100) or intake guide (300), stretch cord or buckle structure is adopted to be fixed on user's head, thus the bottom, nostril that distributary division (100) is fixed on user will be breathed, active force is applied to nostril connector (200) simultaneously, make the nostril of nostril sealing the margin (210) laminating user.Optionally, respirator fixed part (400) comprises the ear card (401) of adjustable position, comprises the silica gel sheath outside live splint and live splint, and silica gel sheath adopts upside-down triangle shape.In use.Adjustment activity clips to correct position, is buckled in user ear (such as ear upper back), thus improves the stability of respirator fixed part.
Although describe the present invention with reference to some detailed description of the invention, should be appreciated that, the present invention is not limited to invented detailed description of the invention.The present invention is intended to contain the interior included various amendment of spirit and scope and the equivalent arrangements of claims.The scope of claims meets the most wide in range explanation, thus comprises all such amendments and equivalent structure and function.
Claims (12)
1. a respiration connector, it is characterized in that: comprise and breathe distributary division, nostril connector, intake guide, breathe distributary division and connect nostril connector and intake guide respectively, breathe distributary division and comprise spiracle, branch chamber, chamber wall, breather cheek valve, suction hole, exhaling hole, expiratory one-way valve, nostril connector comprises nostril sealing the margin and nostril catheter, nostril sealing the margin is for the nostril margins of the user that fits, nostril catheter is positioned in the middle of the sealing the margin of nostril, for being communicated with user nostril and spiracle, the inner space suction hole of intake guide.
2. respiration connector as claimed in claim 1, it is characterized in that: breathe distributary division and comprise a tubular structure, tubular structure is inner as branch chamber, the two ends of tubular structure are as suction hole, the side openings of tubular structure is as spiracle, and the other perforate of sidepiece of tubular structure is as exhaling hole.
3. respiration connector as claimed in claim 1, is characterized in that: breathe distributary division and comprise a tubular structure, and tubular structure is inner as branch chamber, and the two ends of tubular structure are respectively as suction hole and exhaling hole, and the side openings of tubular structure is as spiracle.
4. respiration connector as claimed in claim 1, it is characterized in that: breathe distributary division and comprise two tubular structures and distributary division fixator, tubular structure is inner as branch chamber, the two ends of tubular structure are respectively as spiracle and exhaling hole, the side openings of tubular structure is as suction hole, distributary division fixator connects two tubular structures, makes the spiracle of two tubular structures can respectively towards two nostrils of user.
5. breather cheek valve as claimed in claim 1, it is characterized in that: comprise inlet valve fixed part and suction valve chip, the part side of suction valve chip is fixed on the chamber wall inside suction hole by inlet valve fixed part, under non-suction condition, suction valve chip laminating suction hole, blocks branch chamber and suction hole, under suction condition, suction valve chip leaves suction hole under the effect of draught head, thus is communicated with branch chamber and suction hole.
6. expiratory one-way valve as claimed in claim 1, it is characterized in that: comprise outlet valve fixed part and expiration valve block, the part side of expiration valve block is fixed on the chamber wall outside exhaling hole by outlet valve fixed part, under non-expiration state, expiration valve block laminating exhaling hole, blocks branch chamber and extraneous air, under expiration state, expiration valve block leaves exhaling hole under the effect of draught head, thus breath is discharged via exhaling hole.
7. nostril as claimed in claim 1 sealing the margin, is characterized in that: adopt the cambered surface that front end is little, rear end is large, thus adapts to the change of user nostril size.
8. nostril as claimed in claim 1 sealing the margin, it is characterized in that: adopt silica gel or elastomeric material, shape changes with user's nostril form, improves sealing when breathing and comfort level.
9. respiration connector as claimed in claim 1, it is characterized in that: comprise respirator fixed part, respirator fixed part is connected with breathing distributary division or intake guide, stretch cord or buckle structure is adopted to be fixed on user's head, thus breathing distributary division is fixed on the bottom, nostril of user, and active force is applied to nostril connector, make the nostril of nostril sealing the margin laminating user.
10. respirator fixed part as claimed in claim 9, is characterized in that: the ear card comprising adjustable position, is adjusted to correct position in use, is buckled in user ear.
11. respiration connectors as claimed in claim 2, it is characterized in that, exhaling hole comprises the hole of two half-oval shaped, there is the chamber wall of elongate in shape in the centre in two holes, expiratory one-way valve is made up of the valve block of a silica gel or elastomeric material, valve block two sides comprise two joint-cuttings respectively, thus valve block can be installed between exhaling hole, and exhaling hole of fitting.
12. 1 kinds manufacture the method for breathing distributary division as claimed in claim 4, it is characterized in that: adopt silica gel or elastomeric material to make upper opening, the barrel structure of bottom closure, wherein upper opening is as spiracle, in cylinder, part is as branch chamber, barrel cuts out valve block, the part that the part adopting the mode of cutting sth. askew to make valve block inside barrel structure is compared outside barrel structure is given prominence to, and the side retaining valve block is connected in barrel, thus form breather cheek valve and suction hole, to cut at the bottom of cylinder and to retain a part of edge conjunction in barrel, thus formation exhaling hole, expiratory one-way valve, the non-cut-away portions of barrel forms chamber wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151142.2A CN104721980A (en) | 2015-04-02 | 2015-04-02 | Breathing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151142.2A CN104721980A (en) | 2015-04-02 | 2015-04-02 | Breathing connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104721980A true CN104721980A (en) | 2015-06-24 |
Family
ID=53446764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510151142.2A Pending CN104721980A (en) | 2015-04-02 | 2015-04-02 | Breathing connector |
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| Country | Link |
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| CN (1) | CN104721980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107059A (en) * | 2017-06-23 | 2019-01-01 | 王宁助 | Clapboard device of air purifying type respiration protective device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127966A (en) * | 2014-08-08 | 2014-11-05 | 詹育边 | Nasal mask device and nasal mask combined filter |
| CN204563362U (en) * | 2015-04-02 | 2015-08-19 | 王虎 | Respiration connector |
-
2015
- 2015-04-02 CN CN201510151142.2A patent/CN104721980A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127966A (en) * | 2014-08-08 | 2014-11-05 | 詹育边 | Nasal mask device and nasal mask combined filter |
| CN204563362U (en) * | 2015-04-02 | 2015-08-19 | 王虎 | Respiration connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107059A (en) * | 2017-06-23 | 2019-01-01 | 王宁助 | Clapboard device of air purifying type respiration protective device |
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Application publication date: 20150624 |