Canister adapter for oxygen supplementation and gas mask

Abstract

The utility model relates to the technical field of gas masks, in particular to a canister adapter for oxygen supplementation and a gas mask, and mainly solves the technical problem that an oxygen supplementation mode of an existing gas mask is poor in universality. The adapter comprises a barrel-shaped body, the inner wall of the barrel-shaped body is divided into an internal thread section and an unthreaded hole section in the axial direction, the diameter of the internal thread section is larger than that of the unthreaded hole section so that a first annular step face can be formed at the joint of the internal thread section and the unthreaded hole section, and the outer wall of the barrel-shaped body is divided into an unthreaded shaft section and an external thread section in the axial direction. The diameter of the optical axis section is larger than that of the external thread section so that a second annular step face can be formed at the joint of the optical axis section and the external thread section, the external thread section corresponds to the unthreaded hole section, the diameter of the internal thread section is equal to that of the external thread section, and the unthreaded hole section is provided with an oxygenating connector communicated with the outside. When in use, the adapter is connected between a canister and a mask body, is connected with an oxygen supplementation device through the oxygen supplementation interface on the adapter, can be suitable for various gas masks, and is high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of gas masks, in particular to an oxygen supplementation canister adapter and a gas mask. Background Art

[0002] In plateau environments, the oxygen content in the air is low, and the human body will experience more or less symptoms of altitude sickness. Coupled with the original breathing resistance of the gas mask, the physiological comfort of people is extremely poor when wearing a gas mask in plateau areas, so oxygen supplementation is needed.

[0003] The oxygen supplementation of existing gas masks is mainly carried out by plugging the mask drinking water tube into the oxygenator, but some gas masks are not equipped with a drinking water tube, and the versatility of this oxygen supplementation method is poor. Utility Model Content

[0004] In order to overcome the technical defect of poor versatility of the existing oxygen supplementation method for gas masks, the utility model provides a gas filter canister adapter for oxygen supplementation and a gas mask.

[0005] The utility model provides an adapter for a gas filter canister for oxygen supplementation, comprising a cylindrical body, wherein the inner wall of the cylindrical body is divided into an internal thread section and a light hole section in the axial direction, the diameter of the internal thread section is larger than the diameter of the light hole section to form a first annular step surface at the junction of the two, and the outer wall of the cylindrical body is divided into an optical axis section and an external thread section in the axial direction, the diameter of the optical axis section is larger than the diameter of the external thread section to form a second annular step surface at the junction of the two, the external thread section corresponds to the light hole section, the diameters of the internal thread section and the external thread section are equal, and an oxygen supplementation interface connected to the outside is provided on the light hole section.

[0006] Optionally, the axial length of the external thread segment is smaller than the axial length of the light hole segment.

[0007] Optionally, the oxygen supplementation interface corresponds to the overlapping portion of the light hole segment and the optical axis segment.

[0008] Optionally, sealing rings are provided on both the first annular step surface and the second annular step surface.

[0009] The gas mask provided by the utility model comprises:

[0010] The mask body is provided with a gas filter interface;

[0011] The aforementioned oxygen supplement canister adapter is screwed onto the canister interface via the external threaded section;

[0012] The gas filter canister is screwed onto the internal thread section.

[0013] The technical solution provided by the utility model has the following advantages compared with the prior art:

[0014] The utility model provides an oxygen canister adapter that connects between the canister and the mask body during use. The adapter's oxygen port connects to an oxygenator to provide oxygen to the wearer. When oxygen supplementation is not needed, the adapter is removed and the canister is directly connected to the mask body. Since all gas masks are equipped with a canister, the utility model's adapter is compatible with various gas masks, offering high versatility.

[0015] The gas mask provided by the utility model has the aforementioned advantages because it is equipped with the aforementioned oxygen supplementation canister adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram showing the structure of the oxygen supply canister adapter in Example 1 of the present invention;

[0019] Figure 2 A cross-sectional view of the oxygen supply canister adapter in Example 1 of the present invention is shown;

[0020] Figure 3 A schematic structural diagram of a gas mask in Example 2 of the present invention is shown.

[0021] In the picture:

[0022] 1. Cylindrical body; 11. Internal thread section; 12. Light hole section; 13. First annular step surface; 14. Optical axis section; 15. External thread section; 16. Second annular step surface; 17. Oxygen supply interface; 2. Mask body; 3. Gas canister. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0026] Reference Figure 1 and Figure 2 This embodiment provides an oxygen supplement canister adapter, comprising a cylindrical body 1, the inner wall of the cylindrical body 1 being divided into an internal thread section 11 and a light hole section 12 in the axial direction, the diameter of the internal thread section 11 being larger than the diameter of the light hole section 12 to form a first annular step surface at the junction of the two, the outer wall of the cylindrical body 1 being divided into an optical axis section 14 and an external thread section 15 in the axial direction, the diameter of the optical axis section 14 being larger than the diameter of the external thread section 15 to form a second annular step surface 16 at the junction of the two, the external thread section 15 corresponding to the light hole section 12, the diameters of the internal thread section 11 and the external thread section 15 being equal, and an oxygen supplement interface 17 communicating with the outside world being provided on the light hole section 12.

[0027] It is easy to understand that “the external thread segment 15 corresponds to the light hole segment 12”, that is, the external thread segment 15 and the light hole segment 12 are located at the same end of the cylindrical body 1. The external thread segment 15 can be equal to the length of the light hole segment 12, that is, completely correspond to the light hole segment 12, or it can be less than the length of the light hole segment 12, that is, partially correspond to the light hole segment 12.

[0028] Specifically, the axial length of the external thread section 15 is smaller than the axial length of the optical hole section 12, that is, the first annular step surface is set corresponding to the optical axis section 14, so that the width of the first annular step surface can be designed to be larger, which is more conducive to ensuring structural strength.

[0029] Specifically, the oxygen supply interface 17 corresponds to the overlapping portion of the optical aperture segment 12 and the optical axis segment 14. Because the wall thickness of the overlapping portion of the optical aperture segment 12 and the optical axis segment 14 is relatively thick, the oxygen supply interface 17 is provided in this portion to ensure the length of the oxygen supply interface 17, thereby ensuring the stability of the connection between the oxygen supply interface 17 and the oxygenator.

[0030] Furthermore, sealing rings are provided on both the first and second annular stepped surfaces 16. When the canister 3 is threadedly connected to the internal threaded section 11, the end face of the canister 3 abuts against the sealing ring, thereby ensuring the airtightness of the connection between the canister 3 and the adapter. When the external threaded section 15 is connected to the filter interface of the mask body 2, the end face of the filter interface abuts against the sealing ring, thereby ensuring the airtightness of the connection between the adapter and the mask body 2. This ensures the airtightness of the connection between the canister 3 and the mask body 2.

[0031] The working principle of the oxygen filter canister adapter of this utility model is as follows:

[0032] During use, the adapter is connected to the canister 3 via the internal threaded section 11, and to the mask body 2 via the external threaded section 15. Thus, the adapter is connected between the canister 3 and the mask body 2. An oxygenator is connected via the oxygen supply port 17 on the adapter to provide oxygen to the wearer. When oxygen supply is not needed, the adapter is removed and the canister 3 is directly connected to the mask body 2. Since all gas masks are equipped with a canister 3, the adapter provided in this embodiment is applicable to various gas masks and has high versatility. Example 2

[0033] Reference Figure 3 This embodiment provides a gas mask, including a mask body 2, the oxygen supply canister adapter and the canister 3 described in Example 1; the mask body 2 is provided with a filter interface; the oxygen supply canister adapter is screwed onto the filter interface through an external thread section 15; the canister 3 is screwed onto the internal thread section 11.

[0034] The above description is only a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. An adapter for a canister for oxygen supplementation, characterized in that: The invention comprises a cylindrical body (1), wherein the inner wall of the cylindrical body (1) is divided into an internal thread section (11) and a light hole section (12) in the axial direction, the diameter of the internal thread section (11) is larger than the diameter of the light hole section (12) so as to form a first annular step surface at the junction of the two, and the outer wall of the cylindrical body (1) is divided into an optical axis section (14) and an external thread section (15) in the axial direction, the diameter of the optical axis section (14) is larger than the diameter of the external thread section (15) so as to form a second annular step surface (16) at the junction of the two, the external thread section (15) corresponds to the light hole section (12), the diameters of the internal thread section (11) and the external thread section (15) are equal, and the light hole section (12) is provided with an oxygen supply interface (17) communicating with the outside.

2. The oxygen filter canister adapter according to claim 1, characterized in that: The axial length of the external thread section (15) is smaller than the axial length of the light hole section (12).

3. The oxygen supplement canister adapter according to claim 2, characterized in that: The oxygen supply interface (17) corresponds to the overlapping portion of the light hole segment (12) and the optical axis segment (14).

4. The oxygen supplement canister adapter according to any one of claims 1 to 3, characterized in that: Sealing rings are provided on both the first annular step surface and the second annular step surface (16).

5. A gas mask, characterized in that: include: The mask body (2) is provided with a gas filter interface; The oxygen supplement canister adapter according to any one of claims 1 to 4, which is screwed onto the canister interface via the external thread section (15); The gas filter canister (3) is screwed onto the internal thread section (11).

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