Portable aircraft oxygenation tool
Through integrated design, the digital pressure gauge, pressure relief assembly, and standard connectors are integrated onto the four-way pipe, solving the problems of complex connections and low operational efficiency in traditional aircraft oxygen tank filling operations, and realizing efficient and safe operation of portable aircraft oxygen filling tools.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANSHI RUIFENG AVIATION TECHNOLOGY (JIANGSU) CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional aircraft oxygen tank filling operations suffer from problems such as complex connections of multiple independent components, long processing time, susceptibility to leakage, and lack of intuitive operation.
The digital pressure gauge, pressure relief assembly, and standard connectors are integrated into a four-way pipe, reducing the number of parts. The oxygen filling connector and standard connector are connected through a high-pressure resistant pipe and a four-way pipe, enabling a 'plug-and-play' operation.
The process of connecting oxygenation tools has been simplified, the risk of leakage has been reduced, and operational efficiency has been improved.
Smart Images

Figure CN224261441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aviation ground support equipment technology, and in particular to a portable aircraft oxygen replenishment tool. Background Technology
[0002] Traditional aircraft oxygen tank filling operations require separate connections to pressure monitoring devices, pressure relief devices, and filling interfaces, which have the following drawbacks: the connection of multiple independent components is complex and time-consuming; too many pipe system joints can easily lead to leakage risks; the lack of integrated design results in bulky equipment; and the pressure adjustment during operation is not intuitive, leading to low operating efficiency. Utility Model Content
[0003] To address the issues of complex piping systems and low operational efficiency in oxygenation tools, this application provides a portable aircraft oxygenation tool.
[0004] The portable aircraft oxygen filling tool provided in this application adopts the following technical solution:
[0005] A portable aircraft oxygen filling tool includes a high-pressure resistant tube. One end of the high-pressure resistant tube is crimped with an oxygen filling connector for connecting to an aircraft oxygen tank, and the other end is connected to a four-way tube. One end of the four-way tube is connected to a digital pressure gauge, and the end opposite the digital pressure gauge is connected to a pressure relief component. The end of the four-way tube away from the high-pressure resistant tube is connected to a standard connector for connecting to an aircraft ground pressurization vehicle.
[0006] Preferably, the pressure relief assembly includes a manual pressure relief valve and a silent pressure relief head, wherein the manual pressure relief valve is connected to a four-way pipe, and the silent pressure relief head is connected to the end of the four-way pipe.
[0007] In summary, this application includes the following beneficial technical effects:
[0008] This utility model provides a portable aircraft oxygen filling tool. By integrating a digital pressure gauge, a pressure relief assembly, and a standard connector onto a four-way pipe, the number of parts in the oxygen filling tool is reduced. The oxygen filling connector and the standard connector are connected to the high-pressure resistant pipe and the four-way pipe, respectively, achieving "plug and play" when connecting the equipment. This reduces the time required for oxygen filling equipment and improves operational efficiency, thereby improving the problems of complex piping systems and low operational efficiency of oxygen filling tools. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of the portable aircraft oxygen filling tool in the embodiments of this application.
[0010] Explanation of reference numerals in the attached diagram: 1. High-pressure resistant pipe; 2. Oxygen filling connector; 3. Four-way pipe; 4. Digital pressure gauge; 5. Pressure relief assembly; 51. Manual pressure relief valve; 52. Silent pressure relief head; 6. Standard connector. Detailed Implementation
[0011] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0012] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0013] This application discloses a portable aircraft oxygen replenishment tool. (Refer to...) Figure 1 The portable aircraft oxygen filling tool includes a high-pressure resistant tube 1 with a pressure resistance of 35 MPa. The high-pressure resistant tube 1 is lined with a PTFE anti-corrosion layer. One end of the high-pressure resistant tube 1 is crimped with an oxygen filling connector 2 for connecting to the aircraft oxygen tank, and the other end is connected to a four-way tube 3. One end of the four-way tube 3 is connected to a digital pressure gauge 4, and the end opposite to the digital pressure gauge 4 is connected to a pressure relief component 5. The end of the four-way tube 3 away from the high-pressure resistant tube 1 is connected to a standard connector 6 for connecting to an aircraft ground pressurization vehicle.
[0014] The pressure relief assembly 5 includes a manual pressure relief valve 51 and a silent pressure relief head 52. The manual pressure relief valve 51 is connected to the four-way pipe 3, and the silent pressure relief head 52 is connected to the end of the four-way pipe 3. The manual pressure relief valve 51 is helpful for operators to adjust the pressure relief and ensure the pressure relief accuracy.
[0015] The implementation principle of a portable aircraft oxygen filling tool according to an embodiment of this application is as follows: During operation, the oxygen filling connector 2 is plugged into the aircraft oxygen tank, and the standard connector 6 is connected to the aircraft ground pressurization vehicle. During pressurization, the operator can observe the pressure change on the digital pressure gauge 4 and adjust the pressure through the pressure relief component 5.
[0016] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A portable aircraft oxygen charging tool, characterized by: The utility model relates to a high-pressure resistant pipe (1) which is connected with an oxygen filling connector (2) at one end for connecting with an aircraft oxygen tank, and is connected with a four-way pipe (3) at the other end, one end of the four-way pipe (3) is connected with a digital pressure gauge (4), the end opposite to the digital pressure gauge (4) is connected with a pressure relief assembly (5), and the end of the four-way pipe (3) away from the high-pressure resistant pipe (1) is connected with a standard connector (6) for connecting with an aviation ground pressure booster.
2. A portable aircraft oxygen charging device according to claim 1, characterized in that: The pressure relief assembly (5) comprises a manual pressure relief valve (51) and a sound-damping pressure relief head (52), the manual pressure relief valve (51) is connected to the four-way pipe (3), and the sound-damping pressure relief head (52) is connected to the pipe end of the four-way pipe (3).