Direct-flushing-preventing oxygen inhalation mask

Abstract

The utility model discloses an anti-direct-flushing oxygen inhalation mask, and relates to the technical field of oxygen inhalation masks. The outer side of the oxygen inhalation mask body is provided with a connecting cavity extending in the direction away from the oxygen inhalation mask body. The oxygen inhalation mask body is provided with a gas outlet communicated with the connecting concave cavity; an air inlet nozzle communicated with an inner cavity of the connecting concave cavity is arranged on the outer side of the connecting concave cavity; the connecting concave cavity is connected with a buffering assembly, so that the moving direction of gas is changed twice in the flowing process from the gas inlet nozzle to the mouth and nose of the human body, high-pressure oxygen is effectively prevented from being directly flushed into the oral cavity of a user, and the novel oxygen respirator is simple and reasonable in overall design, convenient to operate, high in practicability and stable in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen inhalation hoods, and in particular relates to an oxygen inhalation hood that is protected from direct impact. Background Art

[0002] Patients who undergo nasal surgery use oral and double-nasal oxygen inhalation after surgery. However, the existing oxygen inhalation structure easily causes oxygen to rush directly into the mouth and nose, causing discomfort to the patient and making him unable to speak.

[0003] A Chinese patent with announcement number CN203315495U discloses an oxygen inhalation mask for use in a hyperbaric oxygen chamber, comprising a buffer device for reducing the flow rate of high-pressure oxygen, a mask detachably connected to the buffer device, and a one-way valve arranged between the buffer device and the mask, so as to reduce the flow rate of high-pressure oxygen and prevent the high-pressure oxygen from directly entering the mask and impacting the patient, thereby no longer affecting the patient's breathing frequency and making the patient's oxygen inhalation more comfortable.

[0004] However, in the above structure, since the one-way valve is a consumable part during use, the buffering of oxygen requires the cooperation between the buffer device and the one-way valve, resulting in the life of the one-way valve affecting the life of the entire oxygen inhalation hood. Utility Model Content

[0005] The utility model aims at the deficiencies in the prior art and provides an anti-direct-rush oxygen inhalation hood, which can effectively prevent oxygen from directly rushing towards a patient.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An oxygen hood that prevents direct impact, comprising an oxygen hood body; a connecting cavity extending away from the oxygen hood body is arranged on the outer side of the oxygen hood body; a gas outlet communicated with the connecting cavity is opened on the oxygen hood body; an air inlet nozzle communicated with its internal cavity is arranged on the outer side of the connecting cavity; a buffer component is connected to the connecting cavity so that the gas changes its moving direction twice during the flow from the air inlet nozzle to the human mouth and nose.

[0008] Optionally, the buffer assembly includes a first baffle and a second baffle; the first baffle is located in the connecting cavity, the first baffle is opposite to the air inlet nozzle, so that the gas changes its moving direction for the first time during the flow process, and there is a first gap between the first baffle and the side wall of the connecting cavity to allow the gas to flow to the second baffle; the second baffle is located inside the oxygen hood body and opposite to the gas outlet; there is a gap between the second baffle and the inner surface of the oxygen hood body that can accommodate the passage of gas, so that the gas changes its moving direction for the second time during the flow process and flows to the human mouth and nose.

[0009] Optionally, a projected area of ​​the second baffle plate on the oxygen hood body is larger than a cross-sectional area of ​​the gas outlet.

[0010] Optionally, the first baffle plate and the second baffle plate are perpendicular to each other, one end of the first baffle plate is connected to the bottom of the connecting cavity, and the other end is connected to the second baffle plate; the first baffle plate transversely divides the connecting cavity so that the connecting cavity is divided into an upper and lower part; the extended surface of the first baffle plate can evenly divide the air inlet channel of the air inlet nozzle, so that when the gas enters the connecting cavity from the air inlet nozzle, it is evenly divided into two upper and lower airflows.

[0011] Optionally, there are two air inlet nozzles, which are respectively located on the left and right sides of the first baffle; and a protective plug is detachably connected to the air inlet nozzle.

[0012] Optionally, a projection area of ​​the gas outlet projected onto the bottom of the connecting cavity is smaller than the bottom area of ​​the connecting cavity.

[0013] Optionally, the projection shape of the connecting cavity on the surface of the oxygen hood body and the cross-sectional shape of the gas outlet are both strip-shaped; the shape of the oxygen hood body is dumbbell-shaped or strip-shaped.

[0014] Optionally, the oxygen hood body and the connecting cavity are integrally formed.

[0015] Optionally, the edge of the oxygen absorption mask body is provided with a bending portion that bends and extends inwardly; the bending portion and the oxygen absorption mask body form a groove shape to cover the user's mouth and nose.

[0016] Optionally, the bent portion is provided with two hanging ears respectively located on the left and right sides of the oxygen hood body; and the hanging ears are installed with elastic webbing.

[0017] The beneficial effects of the utility model are:

[0018] (1) The gas enters the connecting cavity from the air inlet nozzle, and after changing the moving direction twice through the buffer component, flows into the interior of the oxygen inhalation mask body for use by the user; under the action of the buffer component, the high-pressure oxygen is effectively prevented from directly rushing into the user's mouth.

[0019] (2) The buffer assembly includes a first baffle plate and a second baffle plate. The arrangement of the first baffle plate and the second baffle plate realizes changing the moving direction of the gas twice. The first baffle plate and the second baffle plate do not move when in use, thereby avoiding the situation in the prior art where consumable parts are used, resulting in a reduction in the life of the oxygen hood.

[0020] (3) The first baffle plate and the second baffle plate are perpendicular to each other, and the overall design is simple and reasonable, easy to operate, highly practical, and has a stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a front view structural schematic diagram of the utility model;

[0023] Figure 3 for Figure 2 Schematic diagram of the CC cross-section structure;

[0024] Figure 4 It is a flow diagram of gas flowing from the air inlet nozzle to the first baffle plate of the utility model;

[0025] Figure 5 It is a flow diagram of gas flowing from the first baffle plate to the second baffle plate of the utility model;

[0026] Figure 6 It is a flow diagram of gas flowing out of the second baffle from the gas outlet of the utility model.

[0027] Markings in the figure are: 1 is the oxygen breathing mask body, 11 is the bending part, 2 is the connecting cavity, 3 is the gas outlet, 4 is the air inlet nozzle, 5 is the first baffle plate, 6 is the second baffle plate, and 7 is the hanging ear. DETAILED DESCRIPTION

[0028] The utility model is described in detail below with reference to the accompanying drawings.

[0029] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. used in the utility model are only for the convenience of description and are not used to limit the scope of implementation of the utility model. Changes or adjustments in their relative relationships should be regarded as the scope of implementation of the utility model without substantially changing the technical content.

[0030] like Figure 1-6 As shown, an anti-direct impact oxygen breathing mask is provided, including an oxygen breathing mask body 1; a connecting cavity 2 extending in a direction away from the oxygen breathing mask body 1 is arranged on the outer side of the oxygen breathing mask body 1; the connecting cavity 2 is integrally formed with the oxygen breathing mask body 1, and the structure after the connecting cavity 2 is projected onto the oxygen breathing mask body 1 is a strip structure; the oxygen breathing mask body 1 is provided with a gas outlet 3 communicated with the connecting cavity 2, that is, the gas outlet 3 is consistent with the central axis of the connecting cavity 2, and the setting of the gas outlet 3 makes the connecting cavity 2 communicate with the inner side of the oxygen breathing mask body 1.

[0031] An air inlet nozzle 4 is arranged on the outside of the connecting cavity 2, and the air inlet nozzle 4 is communicated with the cavity inside the connecting cavity 2; a buffer component is connected to the connecting cavity 2 to change the moving direction of the gas at least twice during the flow from the air inlet nozzle 4 to the human mouth and nose; changing the moving direction twice can prevent high-pressure oxygen from directly rushing into the mouth and nose.

[0032] Specifically, Figure 4-6 As shown, the buffer assembly includes a first baffle plate 5 and a second baffle plate 6; the first baffle plate 5 is located in the connecting cavity 2, and the first baffle plate 5 is opposite to the air inlet nozzle 4, so that the moving direction of the gas changes for the first time during the flow process, and there is a first gap between the first baffle plate 5 and the side wall of the connecting cavity 2 so as to accommodate the gas to flow to the second baffle plate 6; the second baffle plate 6 is located on the inner side of the oxygen hood body 1 and is opposite to the gas outlet 3; there is a gap between the second baffle plate 6 and the inner surface of the oxygen hood body 1 that can accommodate the passage of gas, so that the moving direction of the gas changes for the second time during the flow process and flows to the human mouth and nose, that is, the second baffle plate 6 blocks the gas from flowing directly from the gas outlet 3, so that the gas is dispersed and flows out from the outer edge of the second baffle plate 6, thereby avoiding directly rushing into the human mouth and nose.

[0033] Furthermore, the projection area of ​​the second baffle plate 6 on the oxygen hood body 1 is larger than the cross-sectional area of ​​the gas outlet 3, and the cross-sectional area of ​​the gas outlet 3 is parallel to the surface where the bottom of the cavity 2 is connected, thereby ensuring that the gas flowing out through the gas outlet 3 is effectively blocked, thereby ensuring the effect of preventing direct impact.

[0034] Specifically, Figure 2-4 As shown, the first baffle plate 5 and the second baffle plate 6 are perpendicular to each other, one end of the first baffle plate 5 is connected to the bottom of the connecting cavity 2, and the other end is connected to the second baffle plate 6, that is, the first baffle plate 5 and the second baffle plate 6 form a T-shaped structure; the first baffle plate 5 divides the connecting cavity 2 horizontally so that the connecting cavity 2 is divided into an upper and lower part; there is a gap between the upper and lower surfaces of the first baffle plate 5 and the side wall of the gas outlet 3, so that the gas can flow from the connecting cavity 2 to the second baffle plate 6; the extended surface of the first baffle plate 5 can evenly divide the air inlet channel of the air inlet nozzle 4, so that when the gas enters the connecting cavity 2 from the air inlet nozzle 4, it is evenly divided into an upper and lower airflow, and when the gas passes through the first baffle plate 5, the flow direction of the gas is changed for the first time, and the gas is diverted into two upper and lower groups, so as to avoid direct rushing of the gas; the first baffle plate 5 and the second baffle plate 6 are connected together in an integrally formed manner.

[0035] Furthermore, there are two air inlet nozzles 4, which are respectively located on the left and right sides of the first baffle 5; the air inlet nozzle 4 is detachably connected with a protective plug, which is provided on the air inlet nozzle 4 and can be removed by medical staff when in use. When the air inlet nozzle 4 is in use, only one can be used, and the other one can be kept in a blocked state; providing two air inlet nozzles 4 can facilitate medical staff to select the air inlet nozzle 4 with a suitable direction according to their needs during actual use.

[0036] Furthermore, the projected area of ​​the gas outlet 3 projected onto the bottom of the connecting cavity 2 is smaller than the bottom area of ​​the connecting cavity 2, so that there is a certain accommodating space when the gas enters the connecting cavity 2 from the gas inlet nozzle 4.

[0037] In some other embodiments, the edge of the oxygen mask body 1 is provided with a bending portion 11 that bends and extends inward; the bending portion 11 and the oxygen mask body 1 form a groove shape to cover the user's mouth and nose; the bending portion 11 is provided with two hanging ears 7 located on the left and right sides of the oxygen mask body 1 respectively; the hanging ears 7 are installed with elastic webbing, and the elastic webbing can fix the oxygen mask body 1 at the bilateral ear positions of the patient; the shape of the oxygen mask body 1 can be dumbbell-shaped or strip-shaped.

[0038] Working principle: When in use, oxygen enters the connecting cavity 2 from the air inlet nozzle 4, and is divided into two upper and lower air flows under the action of the first baffle plate 5. The two air flows respectively flow along the upper and lower surfaces of the first baffle plate 5, pass through the gas outlet 3, and flow to the second baffle plate 6. Under the blocking effect of the second baffle plate 6, the air flow moves outward from the edge of the second baffle plate 6, thereby spreading throughout the inner side of the entire oxygen hood body 1 for use by the user.

[0039] In some other embodiments, the first baffle plate 5 and the second baffle plate 6 are distributed in parallel with each other, that is, the first baffle plate 5 is located in the connecting cavity 2, and the air inlet nozzle 4 is opposite to the first baffle plate 5; the first baffle plate 5 and the second baffle plate 6 can be fixed on the oxygen hood body 1 through a connecting piece; the first baffle plate 5 and the bottom of the connecting cavity 2 are parallel to each other, the projection area of ​​the first baffle plate 5 on the bottom of the connecting cavity 2 is larger than the projection area of ​​the second baffle plate 6 on the bottom of the connecting cavity 2, and the projection area of ​​the second baffle plate 6 on the bottom of the connecting cavity 2 is larger than the projection area of ​​the gas outlet 3 on the bottom of the connecting cavity 2; the air inlet nozzle 4 changes its moving direction once after being blocked by the first baffle plate 5, and then when it flows through the second baffle plate 6, it changes its moving direction again after being blocked by the second baffle plate 6.

[0040] The two changes in moving direction of the gas mentioned in this application refer to the two changes in moving direction of the gas passing through the buffer component.

[0041] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0042] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. An oxygen-inhaling hood that prevents direct impact, characterized in that: The invention comprises an oxygen hood body (1); a connecting cavity (2) extending away from the oxygen hood body (1) is arranged on the outer side of the oxygen hood body (1); a gas outlet (3) communicating with the connecting cavity (2) is provided on the outer side of the connecting cavity (2); an air inlet nozzle (4) communicating with the internal cavity of the connecting cavity (2) is arranged on the outer side of the connecting cavity (2); a buffer component is connected to the connecting cavity (2) so that the gas changes its moving direction twice during the flow from the air inlet nozzle (4) to the human mouth and nose.

2. The anti-direct impact oxygen breathing hood according to claim 1, characterized in that: The buffer assembly comprises a first baffle plate (5) and a second baffle plate (6); the first baffle plate (5) is located in the connecting cavity (2), the first baffle plate (5) is directly opposite to the air inlet nozzle (4), so that the moving direction of the gas changes for the first time during the flow process, and there is a first gap between the first baffle plate (5) and the side wall of the connecting cavity (2), so as to allow the gas to flow toward the second baffle plate (6); The second baffle plate (6) is located on the inner side of the oxygen mask body (1) and is directly opposite to the gas outlet (3); a gap is provided between the second baffle plate (6) and the inner surface of the oxygen mask body (1) to allow gas to pass through, so that the gas changes its moving direction for a second time during the flow process and flows toward the human mouth and nose.

3. The anti-direct impact oxygen breathing hood according to claim 2, characterized in that: The projection area of ​​the second baffle plate (6) on the oxygen breathing mask body (1) is larger than the cross-sectional area of ​​the gas outlet (3).

4. The anti-direct impact oxygen breathing hood according to claim 2 or 3, characterized in that: The first baffle plate (5) and the second baffle plate (6) are perpendicular to each other; one end of the first baffle plate (5) is connected to the bottom of the connecting cavity (2), and the other end is connected to the second baffle plate (6); the first baffle plate (5) divides the connecting cavity (2) transversely so that the connecting cavity (2) is divided into an upper and a lower part; the extended surface of the first baffle plate (5) can evenly divide the air intake channel of the air intake nozzle (4), so that when the gas enters the connecting cavity (2) from the air intake nozzle (4), it is evenly divided into an upper and a lower airflow.

5. The anti-direct impact oxygen breathing hood according to claim 4, characterized in that: There are two air inlet nozzles (4), which are respectively located on the left and right sides of the first baffle plate (5); and a protective plug is detachably connected to the air inlet nozzle (4).

6. The anti-direct impact oxygen breathing hood according to claim 1, characterized in that: The projected area of ​​the gas outlet (3) projected onto the bottom of the connecting cavity (2) is smaller than the bottom area of ​​the connecting cavity (2).

7. The anti-direct impact oxygen breathing hood according to claim 1, characterized in that: The projection shape of the connecting cavity (2) on the surface of the oxygen hood body (1) and the cross-sectional shape of the gas outlet (3) are both strip-shaped; the shape of the oxygen hood body (1) is dumbbell-shaped or strip-shaped.

8. The anti-direct impact oxygen breathing hood according to claim 1, characterized in that: The oxygen hood body (1) and the connecting cavity (2) are integrally formed.

9. The anti-direct impact oxygen breathing hood according to claim 1, characterized in that: The edge of the oxygen mask body (1) is provided with a bending portion (11) that bends and extends inward; the bending portion (11) and the oxygen mask body (1) form a groove shape to cover the mouth and nose of the user.

10. The anti-direct impact oxygen breathing hood according to claim 9, characterized in that: The bent portion (11) is provided with two hanging ears (7) respectively located on the left and right sides of the oxygen breathing mask body (1); and elastic webbing is installed on the hanging ears (7).

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