CN213154179U - Mask with oxygen hose passage device - Google Patents
Mask with oxygen hose passage device Download PDFInfo
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- CN213154179U CN213154179U CN202021845857.0U CN202021845857U CN213154179U CN 213154179 U CN213154179 U CN 213154179U CN 202021845857 U CN202021845857 U CN 202021845857U CN 213154179 U CN213154179 U CN 213154179U
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Abstract
The utility model provides a gauze mask with oxygen hose passage means, be provided with oxygen hose passage means on the gauze mask, and oxygen hose passage means is including two oxygen pipe joints, two oxygen pipe joints distribute respectively in the both sides gauze mask part of middle axis of ordinates, middle axis of ordinates be with the parallel symmetry axis in gauze mask both edges, can pair the joint with two tube heads of the two-chamber oxygen hose that uses in the hospital, the pipe shaft of two-chamber oxygen hose can be hung on patient's ear and hindbrain simultaneously, it is comfortable firm, this is the utility of two-chamber oxygen hose itself, and our design can cooperate the utility of two-chamber oxygen hose well.
Description
Technical Field
The utility model relates to a health protection articles for use, concretely relates to gauze mask with oxygen hose passageway device.
Background
For some infectious diseases caused by novel coronavirus, atypical pneumonia virus or influenza virus, etc., a patient needs to wear a disposable medical mask or an N95 mask to reduce the spread of the virus, and in addition, if the patient is accompanied by light and moderate hypoxia, a single-cavity or double-cavity oxygen tube needs to be inserted on the nose for oxygen therapy, but the patient is uncomfortable by oxygen therapy while wearing the mask, so many patients do not want to wear the mask for oxygen therapy, on one hand, the infection risk of medical staff is increased, and on the other hand, the risk of the patient infecting other infectious diseases is also increased.
A Chinese utility model discloses an oxygen supply mask (application number: 03205528.5), which is provided with a transverse long oxygen channel inside, when a patient wears the mask, the oxygen supply can be realized by inserting an oxygen tube into the oxygen channel inside the mask, but the design has some defects, firstly, when the patient wears the oxygen supply mask, the deformability and wearing comfort of the mask can be influenced because the transverse long oxygen channel is placed inside the mask; secondly, the oxygen hose used in hospitals is divided into a single chamber and a double chamber, the design is only suitable for the single chamber design, while the hospital generally uses the double chamber oxygen hose, and if the single chamber oxygen hose is inserted into one side of the mask, the stability and comfort of wearing the mask are affected.
Another chinese utility model discloses a medical emergency oxygen supply mask (application No. 201721784933X), which has an oxygen connector on the mask surface, which can be connected with a single-chamber oxygen tube to supply oxygen to the mask, but the mask is still pressed by the weight of the oxygen tube after being connected with the single-chamber oxygen tube, which affects the comfort and stability of wearing the mask, and the hospital generally uses a double-chamber oxygen tube.
SUMMERY OF THE UTILITY MODEL
Therefore, the oxygen supply mask is needed to be improved, and the oxygen supply mask which is comfortable to wear, safe and stable is designed.
The first technical scheme is as follows: the mask is provided with an oxygen pipe passage device which comprises two oxygen pipe joints, wherein the two oxygen pipe joints are respectively distributed on the mask parts at the two sides of the middle longitudinal axis, and the middle longitudinal axis is a symmetrical axis parallel to the two edges of the mask.
The beneficial effects of the first technical scheme are as follows: two oxygen hose joints distribute in the both sides gauze mask part of middle axis of ordinates respectively, can pair the joint with two tube heads of two-chamber oxygen hose that use in the hospital, and two-chamber oxygen hose joint is more stable comfortable in gauze mask symmetric position, and the pipe shaft of two-chamber oxygen hose can be hung on patient's ear and hindbrain simultaneously, and this is the utility of two-chamber oxygen hose itself, and our design can cooperate the utility of two-chamber oxygen hose well.
Furthermore, the oxygen tube channel device also comprises a support plate, a fixing ring and a joint cover, wherein the bottom end of the oxygen tube joint is fixed on the support plate, the fixing ring is sleeved on the oxygen tube joint and fixed on the support plate, the mask is positioned between the support plate and the fixing ring, the oxygen tube joint is fixed on the mask through the fixing ring, the support plate is positioned on the inner side of the mask, the fixing ring is positioned on the outer side of the mask, the head end of the oxygen tube joint is also positioned on the outer side of the mask and can be fixedly connected with a double-cavity oxygen tube, the oxygen tube joint is provided with a through hole penetrating through the head end to the bottom end support plate, a notch is formed in the part of the mask corresponding to the through hole, and; the joint cover is detachably fixed at the head end of the oxygen pipe joint, and when the oxygen pipe is not needed to be used, the joint cover plays a role in protection and sealing.
Furthermore, the fixing ring is an elastic rubber ring or a nut, and the outer side wall of the oxygen tube joint is provided with threads which can be better matched with the fixing ring.
Furthermore, the fixing ring is an elastic rubber ring, and the cross sectional area close to the outer side of the head end of the oxygen hose connector is larger than the cross sectional area close to the outer side of the bottom end of the oxygen hose connector, so that the fixing ring can be better matched with the fixing ring.
Furthermore, the oxygen pipe channel device also comprises a supporting plate, a fixing block and a joint cover, wherein the bottom end of the oxygen pipe joint is fixed on the supporting plate; the lug on the supporting plate is clamped and fixed with the groove on the fixing block, the supporting plate and the fixing block are fixed between the masks, the oxygen pipe joint is provided with a through hole penetrating from the head end to the supporting plate at the bottom end, a notch is arranged on the mask part corresponding to the through hole, the oxygen pipe joint can be fixedly connected with a double-cavity oxygen pipe, the double-cavity oxygen pipe sends oxygen into the masks through the through hole and the notch, and an oxygen-enriched area is formed in the masks to supply oxygen for patients; the joint cover is detachably fixed at the head end of the oxygen pipe joint.
Furthermore, the cross-sectional area of the through hole near the head end of the oxygen hose connector is larger than that of the through hole near the bottom end of the oxygen hose connector, the cross-sectional area of the through hole near the head end is large, so that a double-cavity or single-cavity oxygen hose can be easily inserted into the through hole of the oxygen hose connector on the mask, and the cross-sectional area of the through hole near the bottom end is small, so that the double-cavity or single-cavity oxygen hose can be more firmly and adjustably fixed on the through hole of the oxygen.
Furthermore, the inner wall of the through hole of the oxygen pipe joint is provided with a small bulge, so that the fixing strength of the oxygen pipe and the through hole is enhanced.
The second technical scheme is as follows: the mask is provided with two oxygen pipe channel devices, one oxygen pipe channel device is provided with an oxygen pipe connector, the two oxygen pipe connectors are respectively distributed on the mask parts at the two sides of the middle longitudinal axis, and the middle longitudinal axis is a symmetrical axis parallel to the two edges of the mask.
The second technical scheme has the following beneficial effects: two oxygen hose joints distribute in the both sides gauze mask part of middle axis of ordinates respectively, can pair the joint with two tube heads of two-chamber oxygen hose that use in the hospital, and two-chamber oxygen hose joint is more stable comfortable in gauze mask symmetric position, and the pipe shaft of two-chamber oxygen hose can be hung on patient's ear and hindbrain simultaneously, and this is the utility of two-chamber oxygen hose itself, and our design can cooperate the utility of two-chamber oxygen hose well.
Furthermore, a support plate is arranged at the bottom end of the oxygen pipe connector, the oxygen pipe passage device further comprises a fixing ring and a connector cover, the fixing ring is sleeved on the oxygen pipe connector and fixed on the support plate, the mask is positioned between the support plate and the fixing ring, the oxygen pipe connector is fixed on the mask through the fixing ring, the support plate is positioned on the inner side of the mask, the fixing ring is positioned on the outer side of the mask, the head end of the oxygen pipe connector is also positioned on the outer side of the mask and can be fixedly connected with the double-cavity oxygen pipe, the oxygen pipe connector is provided with a through hole penetrating from the head end to the bottom end support plate, a notch is formed in the part, corresponding to the through hole, of the mask; the joint cover is detachably fixed at the head end of the oxygen pipe joint, and when the oxygen pipe is not needed to be used, the joint cover plays a role in protection and sealing.
Furthermore, the fixing ring is an elastic rubber ring or a nut, and the outer side wall of the oxygen tube joint is provided with threads which can be better matched with the fixing ring.
Furthermore, the fixing ring is an elastic rubber ring, and the cross sectional area close to the outer side of the head end of the oxygen hose connector is larger than the cross sectional area close to the outer side of the bottom end of the oxygen hose connector, so that the fixing ring can be better matched with the fixing ring.
Furthermore, the oxygen pipe channel device also comprises a supporting plate, a fixing block and a joint cover, wherein the bottom end of the oxygen pipe joint is fixed on the supporting plate; the lug on the supporting plate is clamped and fixed with the groove on the fixing block, the supporting plate and the fixing block are fixed between the masks, the oxygen pipe joint is provided with a through hole penetrating from the head end to the supporting plate at the bottom end, a notch is arranged on the mask part corresponding to the through hole, the oxygen pipe joint can be fixedly connected with a double-cavity oxygen pipe, the double-cavity oxygen pipe sends oxygen into the masks through the through hole and the notch, and an oxygen-enriched area is formed in the masks to supply oxygen for patients; the joint cover is detachably fixed at the head end of the oxygen pipe joint.
Furthermore, the cross-sectional area of the through hole near the head end of the oxygen hose connector is larger than that of the through hole near the bottom end of the oxygen hose connector, the cross-sectional area of the through hole near the head end is large, so that a double-cavity or single-cavity oxygen hose can be easily inserted into the through hole of the oxygen hose connector on the mask, and the cross-sectional area of the through hole near the bottom end is small, so that the double-cavity or single-cavity oxygen hose can be more firmly and adjustably fixed on the through hole of the oxygen.
Furthermore, the inner wall of the through hole of the oxygen pipe joint is provided with a small bulge, so that the fixing strength of the oxygen pipe and the through hole is enhanced.
Drawings
Fig. 1 is a front view of a mask with an oxygen tube passage device in embodiment 1 of the present invention.
Fig. 2 is a front view of the mask of the present invention in example 1 without the oxygen tube passage device.
Fig. 3 is an axonometric view of the mask with an oxygen tube passage device in embodiment 1 of the present invention.
Fig. 4 is an axial explosion diagram of an oxygen tube passage device in example 1 of the present invention.
Fig. 5 is an axial explosion diagram of an oxygen tube passage device in example 1 of the present invention.
Fig. 6 is a right side view of an oxygen tube passage device according to example 1 of the present invention, which is hidden from view.
Fig. 7 is a right-side exploded view of a mask with an oxygen tube passage device according to embodiment 1 of the present invention.
Fig. 8 is a schematic view of the dual-chamber oxygen hose of the present invention.
Fig. 9 is a top view of the oxygen tube passage device connected to a dual-chamber oxygen tube according to embodiment 1 of the present invention.
Fig. 10 is an axial burst diagram of an oxygen tube passage device according to example 2 of the present invention.
Fig. 11 is a front view of the mask with an oxygen tube passage device in embodiment 3 of the present invention.
Fig. 12 is a front view of the mask of the present invention in example 3 without the oxygen tube passage device.
Fig. 13 is an axial explosion diagram of an oxygen tube passage device in example 3 of the present invention.
Fig. 14 is a right-side exploded view of a mask with an oxygen tube passage device according to embodiment 3 of the present invention.
Fig. 15 is a right side view of the oxygen tube passageway device with threads removed according to example 3 of the present invention.
Fig. 16 is a top view of the oxygen tube channel device connected to a dual-chamber oxygen tube according to embodiment 3 of the present invention.
Fig. 17 is an axonometric view of the fixing manner of the nut of the oxygen tube passage device in embodiment 3 of the present invention.
Fig. 18 is a plan view of an oxygen tube passage device in example 3 of the present invention.
Fig. 19 is a plan view of an oxygen tube passage device in example 3 of the present invention.
Fig. 20 is an axial burst diagram of an oxygen tube passage device according to example 4 of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings, and many details are set forth in the following description to facilitate a sufficient understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without violating the spirit of the present invention, so that the present invention is not limited to the embodiments disclosed below.
In the description of the present invention, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated; thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature; in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
IN the description of the present invention, IN represents the inner side, OUT represents the outer side, and Z represents the central longitudinal axis.
As shown in fig. 1 to 9, embodiment 1: the mask 0 is provided with an oxygen pipe passage device 2, the oxygen pipe passage device 22 comprises a first oxygen pipe connector 21 ', a second oxygen pipe connector 21', a supporting plate 22, a fixing block 23 and a connector cover 24, the first oxygen pipe connector 21 'and the second oxygen pipe connector 21' are respectively distributed on the parts of the mask 0 at two sides with a middle longitudinal axis Z as a boundary, the middle longitudinal axis Z is a symmetrical axis parallel to two edges B of the mask 0 and can be matched and jointed with a first pipe head 81 'and a second pipe head 81' of a double-cavity oxygen pipe 8 used in a hospital, the double-cavity oxygen pipe 8 is more stable and comfortable when being jointed to the symmetrical position of the mask 0, meanwhile, a pipe body 82 of the double-cavity oxygen pipe 8 can be hung on ears and a back brain of a patient, the double-cavity oxygen pipe 8 has the effect, and the design of the double-cavity oxygen pipe 8 can be well matched; the bottom ends 213 of the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are fixed on the supporting plate 22, the convex block 221 on the supporting plate 22 is clamped and fixed with the groove 231 on the fixing block 23, the supporting plate 22 and the fixing block 23 are fixed between the masks 0, the first oxygen pipe joint 21 ', the second oxygen pipe joint 21' and the supporting plate 22 are positioned at the outer side OUT of the mask 0, the fixing block 23 is positioned at the inner side IN of the mask 0, and the head ends 212 of the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are also positioned at the outer side OUT of the mask 0; the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are provided with through holes 211 penetrating from the head end 212 to the bottom end 213 to support the plate 22, the part of the mask 0 corresponding to the through holes 211 is provided with a notch 11, the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are respectively fixedly connected with the first pipe head 81 'and the second pipe head 81' of the double-cavity oxygen pipe 8, the double-cavity oxygen pipe 8 sends oxygen into the mask 0 through the through holes 211 and the notch 11, so that an oxygen-enriched area is formed in the mask 0 to supply oxygen to a patient; the joint cover 24 is detachably fixed to the head ends 212 of the first oxygen pipe joint 21' and the second oxygen pipe joint 21 ", and the joint cover 24 functions to protect and seal when the dual-chamber oxygen pipe 8 is not required to be used.
As shown in fig. 6, in the above embodiment 1, the cross-sectional area N1 of the through hole 211 of the head end 212 near the first oxygen pipe joint 21' and the second oxygen pipe joint 21 "is larger than the cross-sectional area N2 of the through hole 211 near the bottom end 213, the cross-sectional area N1 of the through hole 211 near the head end 212 is larger to facilitate the insertion of the dual-chamber oxygen pipe 8 into the through hole 211 of the oxygen pipe joint on the mask 0, and the cross-sectional area N2 of the through hole 211 near the bottom end 213 is smaller to more firmly and adjustably fix the dual-chamber oxygen pipe 8 to the through hole 211 of the oxygen pipe joint on the mask 0.
Meanwhile, the inner walls of the through holes 211 of the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are provided with small bulges, so that the friction force between the double-cavity oxygen pipe 8 and the through holes 211 is increased.
As shown in fig. 10, embodiment 2 is different from embodiment 1 in that two oxygen pipe passage means 2 are provided, including a first oxygen pipe passage means 2 'and a second oxygen pipe passage means 2 ", the first oxygen pipe passage means 2' is provided with only a first oxygen pipe joint 21 ', a first support plate 22', a first fixing block 23 'and a first joint cover 24', the second oxygen pipe passage means 2" is provided with only a second oxygen pipe joint 21 ", a second support plate 22", a second fixing block 23 "and a second joint cover 24", that is, one oxygen tube passage means 2 corresponds to only one oxygen tube fitting 21, since the support plate 22 of embodiment 2 has a smaller area than the support plate 22 of embodiment 1 and does not block the center of the mask 0, can make the patient set the mask 0 into the self-comfortable arc better to adapt to the face shape when wearing the mask 0.
As shown in fig. 11 to 19, in embodiment 3, the mask 0 is provided with an oxygen tube passage device 2, the oxygen tube passage device 2 includes a first oxygen tube connector 21 ', a second oxygen tube connector 21 ", a support plate 22, a fixing ring 25 and a connector cover 24, the first oxygen tube connector 21' and the second oxygen tube connector 21" are respectively distributed at the two side mask 0 portions bounded by a middle longitudinal axis Z, the middle longitudinal axis Z is a symmetry axis parallel to the two edges B of the mask 0, can be respectively matched and jointed with a first pipe head 81 'and a second pipe head 81' of a double-cavity oxygen pipe 8 used in hospitals, because the double-cavity oxygen pipe 8 is jointed to the symmetrical position of the mask 0, the mask is more stable and comfortable, and the pipe body 82 of the double-cavity oxygen pipe 8 can be hung on the ears and the hindbrain of the patient, the utility of the double-cavity oxygen tube 8 is realized, and the design of the utility model can be well matched with the utility of the double-cavity oxygen tube 8; the bottom ends 213 of the first oxygen pipe joint 21 'and the second oxygen pipe joint 21 "are fixed on the supporting plate 22, the fixing ring 25 is sleeved on the first oxygen pipe joint 21' and the second oxygen pipe joint 21" and fixed on the supporting plate 22, and the mask 0 is positioned between the supporting plate 22 and the fixing ring 25, the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are fixed on the mask 0 through the fixing ring 25, the supporting plate 22 is positioned at the inner side IN of the mask 0, the fixing ring 25, the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are positioned at the outer side OUT of the mask 0, the oxygen mask can be fixedly connected with a double-cavity oxygen pipe 8, the first oxygen pipe joint 21' and the second oxygen pipe are provided with through holes 211 penetrating from a head end 212 to a bottom end 213 to support a plate 22, the part of the mask 0 corresponding to the through holes 211 is provided with a notch 11, the double-cavity oxygen pipe 8 sends oxygen into the mask 0 through the through holes 211 and the notch 11, and an oxygen-enriched area is formed in the mask 0 to supply oxygen for a patient; the joint cover 24 is detachably fixed to the first oxygen pipe joint 21' and the head end 212 of the second oxygen pipe, and the joint cover 24 serves to protect and seal when the oxygen pipe is not needed to be used.
As shown in fig. 13 and 19, the fixing ring 25 in embodiment 3 is fixed to the first oxygen pipe joint 21', the second oxygen pipe joint 22 ″, and the support plate 22 in two ways, the first: the fixing ring 25 is an elastic rubber ring or a nut, and the screw thread 214 is arranged on the wall of the OUT outside the oxygen pipe joint and can be well matched and fixed with the fixing ring 25; and the second method comprises the following steps: the fixing ring 25 is an elastic rubber ring, the OUT wall on the outer side of the oxygen pipe joint is not provided with threads, but the cross-sectional area W1 close to the outer side of the head end 212 of the oxygen pipe joint is larger than the cross-sectional area W2 close to the outer side of the bottom end 213 of the oxygen pipe joint, and the fixing ring 25 is not easy to fall off after being sleeved into the bottom end 213 of the oxygen pipe joint.
As shown in fig. 15 and 16, in the above embodiment 3, the cross-sectional area N1 of the through hole 211 near the head end 212 of the first oxygen pipe joint 21 'and the second oxygen pipe joint 21 "is larger than the cross-sectional area N2 of the through hole 211 near the bottom end 213 of the first oxygen pipe joint 21' and the second oxygen pipe joint 21", the cross-sectional area N1 of the through hole 211 near the head end 212 is large so that the dual-chamber oxygen pipe can be easily inserted into the through hole 211 of the oxygen pipe joint on the mask 0, and the cross-sectional area N2 of the through hole 211 near the bottom end 213 is small so that the dual-chamber oxygen pipe 8 can be more firmly and adjustably fixed to the through hole 211 of the oxygen pipe joint.
Meanwhile, the inner walls of the through holes 211 of the first oxygen pipe joint 21 'and the second oxygen pipe joint 21' are provided with small bulges, so that the friction force between the oxygen pipes and the through holes 211 is increased.
As shown in fig. 20, embodiment 4 differs from embodiment 3 in that the oxygen gas pipe passage device 2 is provided with two, including a first oxygen gas pipe passage device 2 ' and a second oxygen gas pipe passage device 2 ", the first oxygen gas pipe passage device 2 ' is provided with only a first oxygen gas pipe joint 21 ', a first support plate 22 ', a first fixing ring 25 ' and a first joint cover 24", the second oxygen gas pipe passage device 2 "is provided with only a second oxygen gas pipe joint 21", a second support plate 22 ", a second fixing ring 25" and a second joint cover 24 ", that is, one oxygen tube passage means 2 corresponds to only one oxygen tube fitting 21, since the support plate 22 of embodiment 4 has a smaller area than the support plate 22 of embodiment 3 and does not block the center of the mask 0, can make the patient set the mask 0 into the self-comfortable arc better to adapt to the face shape when wearing the mask 0.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, without departing from the spirit of the invention, several changes and modifications can be made, which are within the scope of the invention, and therefore, the scope of the invention should be limited only by the appended claims.
Claims (8)
1. A mask with an oxygen tube passage device is characterized in that the mask is provided with the oxygen tube passage device, and
the oxygen tube channel device comprises two oxygen tube connectors which are respectively distributed on the mask parts at the two sides of the middle longitudinal axis, and the middle longitudinal axis is a symmetrical axis parallel to the two edges of the mask.
2. A mask with an oxygen tube passage device is characterized in that two oxygen tube passage devices are arranged on the mask,
the oxygen pipe channel device is provided with an oxygen pipe connector, the two oxygen pipe connectors are respectively distributed on the mask parts on the two sides of the middle longitudinal axis, and the middle longitudinal axis is the symmetrical axis parallel to the two edges of the mask.
3. The mask of claim 1 or claim 2 wherein said oxygen tube passageway means further comprises a support
The bottom end of the oxygen pipe connector is fixed on the supporting plate, the fixing ring is sleeved on the oxygen pipe connector and fixed on the supporting plate, the mask is positioned between the supporting plate and the fixing ring, the supporting plate is positioned on the inner side of the mask, the fixing ring is positioned on the outer side of the mask, the head end of the oxygen pipe connector is also positioned on the outer side of the mask, the oxygen pipe connector is provided with a through hole penetrating through the mask from the head end to the bottom end supporting plate, and a notch is formed in the mask part corresponding to the through hole; the joint cover is detachably fixed at the head end of the oxygen pipe joint.
4. The mask of claim 3 wherein said retainer ring is an elastic rubber ring or nut, said oxygen tube
The outer side wall of the joint is provided with threads.
5. The mask of claim 3 wherein said retainer ring is an elastic rubber ring and said oxygen tube is connected to said oxygen tube
The cross-sectional area of the outer edge of the head end is larger than that of the outer edge of the bottom end of the oxygen pipe joint.
6. The mask of claim 1 or claim 2 wherein said oxygen tube passageway means further comprises a support
The bottom end of the oxygen pipe joint is fixed on the supporting plate; the oxygen pipe joint is provided with a through hole penetrating from the head end to the support plate at the bottom end, and a notch is formed in the mask part corresponding to the through hole; the joint cover is detachably fixed at the head end of the oxygen pipe joint.
7. The mask of claim 3 wherein said oxygen adapter has a through hole at the head end
The cross-sectional area is larger than that of the through hole at the bottom end of the oxygen pipe joint.
8. The mask of claim 3 wherein said oxygen adapter is disposed on the inner wall of said aperture
There are small projections.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021599875 | 2020-08-05 | ||
| CN2020215998755 | 2020-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213154179U true CN213154179U (en) | 2021-05-11 |
Family
ID=75768489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021845857.0U Active CN213154179U (en) | 2020-08-05 | 2020-08-30 | Mask with oxygen hose passage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213154179U (en) |
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2020
- 2020-08-30 CN CN202021845857.0U patent/CN213154179U/en active Active
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