Connecting structure for limiting pipeline extension of aviation oxygen supply mask

Abstract

The utility model discloses a connecting structure for limiting pipeline extension of an aviation oxygen supply mask. The connecting structure comprises an air inlet pipe arranged on the oxygen supply mask and used for air inlet. The connecting assembly is used for being connected with an air inlet pipe; and the length adjusting assembly is used for adjusting the using length of the connecting assembly. According to the connecting structure for limiting extension of the pipeline of the aviation oxygen supply mask, in the process of adjusting the use length of the pipeline, under the combined action of the connecting assembly, the length adjusting assembly, the mounting assembly and the limiting assembly, when the distance between the first connecting pipe and the second connecting pipe reaches the maximum use length of the length limiting rope, the length limiting rope is connected with the connecting assembly, and the pipeline is prevented from extending. At the moment, the distance between the first connecting pipe and the second connecting pipe cannot be further increased and adjusted, the length of the pipeline is limited, and the situation that the oxygen supply pipeline extends too long, the pipeline is shrunken, oxygen supply is insufficient, and flight is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of aviation oxygen supply mask technology, specifically a connection structure for limiting the extension of the pipeline in an aviation oxygen supply mask. Background Technology

[0002] Aviation oxygen supply masks are essential equipment for providing respiratory protection to aviation personnel or passengers in hypoxic environments at high altitudes. At high altitudes, the outside air pressure is low. The oxygen supply line ensures that the oxygen pressure inside the mask is higher than the outside air pressure, creating a certain residual pressure to maintain pressure balance inside and outside the body, preventing hypoxia and lung damage. The oxygen supply line is then extended to a certain length for use.

[0003] However, the oxygen supply line lacks a structure to limit its length during its extension. When the oxygen supply line is too long, it is prone to dents, resulting in insufficient oxygen supply and affecting flight.

[0004] Therefore, there is an urgent need for a connection structure that limits the extension of the tubing in aviation oxygen supply masks to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a connection structure for limiting the extension of the pipeline in an aviation oxygen supply mask, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connection structure for limiting the extension of the tubing in an aviation oxygen supply mask, including an air intake pipe disposed on the oxygen supply mask for air intake; and further comprising:

[0007] Connection assembly for mounting and connecting to the intake manifold;

[0008] Length adjustment component, used to connect components for length adjustment;

[0009] A limiting component, set on the connection component, is used to limit the length of the connection component.

[0010] Mounting components are used to connect the components to the intake manifold.

[0011] And, an installation sleeve, which is used to assist in the installation and connection of the intake pipe and the connecting assembly.

[0012] The connecting assembly consists of a first connecting pipe and a second connecting pipe, with the first connecting pipe being fixedly connected to the mounting sleeve.

[0013] The length adjustment assembly includes a corrugated pipe disposed between the first connecting pipe and the second connecting pipe. Both ends of the corrugated pipe are fixedly connected to pipe sleeves. The two sets of pipe sleeves are respectively connected to the first connecting pipe and the second connecting pipe, and the distance between the first connecting pipe and the second connecting pipe is adjusted by the expansion and contraction of the corrugated pipe.

[0014] The limiting component includes a length limiting rope disposed inside the corrugated pipe. The first connecting pipe and the second connecting pipe are symmetrically provided with an inner through hole and an outer through hole. One end of the length limiting rope passes through the inner through hole, passes through the outer through hole, and is connected and fixed to the line of the length limiting rope.

[0015] The mounting components are provided in two sets, and the two sets of mounting components are symmetrically arranged on both sides of the mounting sleeve.

[0016] The mounting assembly includes an L-shaped mounting slot on the mounting sleeve, a fixing pin is fixed to the outside of the air intake pipe, and a limiting groove is provided on the L-shaped mounting slot for limiting the fixing pin after it slides in.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model discloses a connection structure for limiting the extension of the oxygen supply tube in an aviation oxygen supply mask. During the adjustment of the tube's usable length, under the combined action of the connecting component, length adjustment component, installation component, and limiting component, when the distance between the first connecting tube and the second connecting tube reaches the maximum usable length of the length limiting rope, the distance between the first connecting tube and the second connecting tube cannot be further increased or adjusted. This limits the length of the tube, preventing the oxygen supply tube from extending too far, causing the tube to collapse, resulting in insufficient oxygen supply and affecting flight. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the length adjustment component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the mounting sleeve structure of this utility model.

[0024] In the diagram: 1. Intake pipe; 201. First connecting pipe; 202. Second connecting pipe; 301. Corrugated pipe; 302. Pipe sleeve opening; 4. Mounting sleeve; 501. Length limiting rope; 502. Inner perforation; 503. Outer perforation; 601. Mounting bayonet; 602. Fixing pin; 603. Limiting groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a connection structure for limiting the extension of the pipeline of an aviation oxygen supply mask, including an air inlet pipe 1 disposed on the oxygen supply mask for air intake; and further including:

[0027] A connection assembly for mounting and connecting with the intake pipe 1;

[0028] Length adjustment component, used to connect components for length adjustment;

[0029] A limiting component, set on the connection component, is used to limit the length of the connection component.

[0030] Mounting components are used to connect the components to the intake pipe 1 for mounting connection;

[0031] And, mounting sleeve 4, which is used to assist in the installation and connection of the intake pipe 1 and the connecting assembly;

[0032] It should be noted here that during the adjustment of the pipeline's length, under the combined action of the connecting components, length adjustment components, installation components, and limiting components, when the distance between the first connecting pipe 201 and the second connecting pipe 202 reaches the maximum usable length of the length limiting rope 501, the distance between the first connecting pipe 201 and the second connecting pipe 202 cannot be further increased. This limits the length of the pipeline, preventing the oxygen supply pipeline from extending too far, causing the pipeline to collapse, resulting in insufficient oxygen supply and affecting flight.

[0033] The connecting assembly consists of a first connecting pipe 201 and a second connecting pipe 202, with the first connecting pipe 201 fixedly connected to the mounting sleeve 4;

[0034] It should be noted here that the corrugated pipe 301 is connected to the external oxygen supply pipeline through the first connecting pipe 201 and the second connecting pipe 202.

[0035] The length adjustment assembly includes a corrugated pipe 301 disposed between the first connecting pipe 201 and the second connecting pipe 202. Both ends of the corrugated pipe 301 are fixedly connected to pipe sleeves 302. The two sets of pipe sleeves 302 are respectively connected to the first connecting pipe 201 and the second connecting pipe 202, and the distance between the first connecting pipe 201 and the second connecting pipe 202 is adjusted by the expansion and contraction of the corrugated pipe 301.

[0036] It should be noted here that the spacing between the first connecting pipe 201 and the second connecting pipe 202 can be adjusted by controlling the stretching of the corrugated pipe 301, which facilitates flexible adjustment of the length of the oxygen supply pipeline after connection.

[0037] The limiting component includes a length limiting rope 501 disposed inside the bellows 301. The first connecting pipe 201 and the second connecting pipe 202 are symmetrically provided with an inner through hole 502 and an outer through hole 503. One end of the length limiting rope 501 passes through the inner through hole 502, passes through the outer through hole 503, and is connected and fixed to the line of the length limiting rope 501.

[0038] It should be noted here that the length of the length limiting rope 501 is used to limit the distance between the first connecting tube 201 and the second connecting tube 202.

[0039] The mounting components are provided in two sets, and the two sets of mounting components are symmetrically arranged on both sides of the mounting sleeve 4. The mounting components include an L-shaped mounting slot 601 opened on the mounting sleeve 4, a fixing pin 602 fixed on the outside of the air intake pipe 1, and a limiting groove 603 opened on the L-shaped mounting slot 601 for limiting the fixing pin 602 after it slides in.

[0040] It should be noted here that the mounting sleeve 4 is connected to the air intake pipe 1 by means of the L-shaped mounting bayonet 601, the fixing pin 602 and the limiting groove 603.

[0041] Working principle: When the aviation oxygen supply mask is connected to the external oxygen supply pipeline, the mounting sleeve 4 and the air inlet pipe 1 are connected by the mounting assembly. After installation, the second connecting pipe 202 on the connecting assembly is connected to the external oxygen supply pipeline to complete the connection of the oxygen supply pipeline.

[0042] After the connection is completed, the spacing between the first connecting pipe 201 and the second connecting pipe 202 can be adjusted by the controllable stretching of the corrugated pipe 301, so that the length of the oxygen supply pipeline after connection can be flexibly adjusted.

[0043] Furthermore, during the adjustment of the length of the pipeline, when the distance between the first connecting pipe 201 and the second connecting pipe 202 reaches the maximum length of the length limiting rope 501, the distance between the first connecting pipe 201 and the second connecting pipe 202 cannot be further increased or adjusted. This limits the length of the pipeline to prevent the oxygen supply pipeline from extending too long, causing the pipeline to collapse, resulting in insufficient oxygen supply and affecting flight.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A connection structure for limiting the extension of the tubing in an aviation oxygen supply mask, comprising: An air intake pipe (1) is installed on the oxygen supply mask for air intake. Its characteristic is that it further includes: Connection assembly for installation connection with intake pipe (1); Length adjustment component, used to connect components for length adjustment; A limiting component, set on the connection component, is used to limit the length of the connection component. Mounting components are used to connect the components to the intake pipe (1) for mounting connection; And, mounting sleeve (4), which is used to assist in the installation and connection of the air intake pipe (1) and the connecting assembly; The connecting assembly consists of a first connecting pipe (201) and a second connecting pipe (202), wherein the first connecting pipe (201) is fixedly connected to the mounting sleeve (4); The length adjustment assembly includes a corrugated pipe (301) disposed between the first connecting pipe (201) and the second connecting pipe (202). Both ends of the corrugated pipe (301) are fixedly connected to pipe sleeves (302). The two sets of pipe sleeves (302) are respectively connected to the first connecting pipe (201) and the second connecting pipe (202), and the distance between the first connecting pipe (201) and the second connecting pipe (202) is adjusted by the expansion and contraction of the corrugated pipe (301). The limiting component includes a length limiting rope (501) disposed inside the corrugated pipe (301). The first connecting pipe (201) and the second connecting pipe (202) are symmetrically provided with an inner through hole (502) and an outer through hole (503). One end of the length limiting rope (501) passes through the inner through hole (502), passes through the outer through hole (503), and is connected and fixed to the line of the length limiting rope (501).

2. The connection structure for limiting the extension of the airline of the aviation oxygen supply mask according to claim 1, characterized in that: The installation components are provided in two sets, and the two sets of installation components are symmetrically arranged on both sides of the installation sleeve (4).

3. The connection structure for limiting the extension of the airline of the aviation oxygen supply mask according to claim 2, characterized in that: The mounting assembly includes an L-shaped mounting slot (601) on the mounting sleeve (4), a fixing pin (602) is fixed on the outside of the air intake pipe (1), and a limiting groove (603) is provided on the L-shaped mounting slot (601) for limiting the fixing pin (602) after it slides in.

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