An oxygen pressure monitoring prompter for a crew member oxygen supply system

Abstract

The application discloses an oxygen pressure monitoring indicator for a crew member oxygen supply system and relates to the field of pressure detection. The oxygen pressure monitoring indicator for the crew member oxygen supply system comprises an oxygen supply device, a display device and an oxygen delivery device. The oxygen supply device is provided with an oxygen inlet channel, an oxygen outlet channel, a piston channel communicated with the oxygen inlet channel and the oxygen outlet channel, a piston slidably arranged in the piston channel and a valve assembly arranged in the oxygen outlet channel. The display device is provided with a display cavity and a display diaphragm for separating the display cavity into a first pressure cavity and a second pressure cavity. The display diaphragm displays different colors when pressure changes are borne. The oxygen delivery device is provided with a first connecting channel communicated with the oxygen outlet channel and the first pressure cavity and a second connecting channel communicated with the oxygen outlet channel and the second pressure cavity. When the pressure in the oxygen inlet channel changes, the piston moves along the piston channel and the display diaphragm displays different colors. The oxygen pressure monitoring indicator for the crew member oxygen supply system can facilitate the user to check the oxygen supply pressure.

Description

Technical Field

[0001] This application relates to the field of pressure detection, and more specifically, to an oxygen pressure monitoring and indicator for an oxygen supply system for crew members. Background Technology

[0002] Transport aircraft need to be equipped with oxygen pressure monitoring gauges to monitor the overall oxygen supply pressure. These gauges are typically located in the aircraft's work compartment and are checked and refilled by ground crew. However, during high-frequency missions, ground crew do not have the means to check the aircraft's oxygen pressure, and the flight crew cannot monitor oxygen usage in real time. To prevent situations where the oxygen pressure is too low or the oxygen supply is abnormal when the flight crew needs oxygen while wearing masks, an oxygen pressure monitoring device needs to be added to the front end of the oxygen supply line for the flight crew. Summary of the Invention

[0003] The purpose of this application is to provide an oxygen pressure monitoring and indicator for a crew oxygen supply system, which allows users to easily view the oxygen supply pressure.

[0004] The embodiments of this application are implemented as follows:

[0005] This application provides an oxygen pressure monitoring and prompting device for an oxygen supply system for crew members. It includes an oxygen supply device, a display device, and an oxygen delivery device. The oxygen supply device has an oxygen inlet channel, an oxygen outlet channel, a piston channel connecting the oxygen inlet channel and the oxygen outlet channel, and a piston located within the piston channel. The oxygen outlet channel has a valve assembly that cuts off or connects the outlet channel when the pressure reaches a preset value. The display device has a display cavity and a display diaphragm that divides the display cavity into a first pressure cavity and a second pressure cavity. The display diaphragm can display different colors for viewing when subjected to pressure changes. The oxygen delivery device has a first connecting channel connecting the oxygen outlet channel and the first pressure cavity, and a second connecting channel connecting the oxygen outlet channel and the second pressure cavity. The valve assembly is located between the first connecting channel and the second connecting channel. When the pressure in the oxygen inlet channel changes, the display diaphragm displays different colors.

[0006] In some alternative implementations, when the pressure in the oxygen inlet channel changes, the piston moves along the piston channel between the first, second, and third positions. When the piston moves between the first and second positions, the oxygen inlet channel and the first connecting channel are connected. When the piston moves between the second and third positions, the oxygen inlet channel, the oxygen outlet channel, the first connecting channel, and the second connecting channel are connected.

[0007] In some alternative implementations, the valve assembly includes a diversion diaphragm movably disposed within the oxygen outlet channel, a retaining ring connecting the diversion diaphragm, and springs at both ends connected to the retaining ring and the inner wall of the oxygen outlet channel, respectively.

[0008] In some alternative implementations, one end of the piston passage is connected to the outer wall of the oxygen supply device, one end of the piston extends out of the piston passage, and the inner wall of the piston passage is provided with a plug for preventing the piston from disengaging from the piston passage.

[0009] In some alternative embodiments, the display device includes a display base and a display cover made of transparent material that is detachably connected to the top of the display base. The display base and the display cover enclose a display cavity. The display base has a first connection hole that communicates with a first pressure cavity and a first connection channel, and a second connection hole that communicates with a second pressure cavity and a second connection channel.

[0010] In some alternative implementations, a pressure ring for fixing the display diaphragm is provided inside the display cavity.

[0011] In some alternative implementations, a reset diaphragm is provided between the pressure ring and the display diaphragm.

[0012] The beneficial effects of this application are as follows: The oxygen pressure monitoring and prompting device for a crew oxygen supply system provided by this application includes an oxygen supply device, a display device, and an oxygen delivery device. The oxygen supply device has an oxygen inlet channel, an oxygen outlet channel, a piston channel connecting the oxygen inlet channel and the oxygen outlet channel, and a piston located in the piston channel. The oxygen outlet channel has a valve assembly that cuts off or connects the outlet channel when the pressure reaches a preset value. The display device has a display cavity and a display diaphragm that divides the display cavity into a first pressure cavity and a second pressure cavity. The display diaphragm can display different colors for viewing when subjected to pressure changes. The oxygen delivery device has a first connecting channel connecting the oxygen outlet channel and the first pressure cavity and a second connecting channel connecting the oxygen outlet channel and the second pressure cavity. The valve assembly is located between the first connecting channel and the second connecting channel. When the pressure in the oxygen inlet channel changes, the display diaphragm displays different colors. The oxygen pressure monitoring and prompting device for a crew oxygen supply system provided by this application allows users to easily view the oxygen supply pressure. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of an oxygen pressure monitoring and indicator for a crew oxygen supply system provided in an embodiment of this application;

[0015] Figure 2A first-view structural schematic diagram of the oxygen supply device in an oxygen pressure monitoring and indicator for a crew oxygen supply system provided in an embodiment of this application.

[0016] Figure 3 For along Figure 2 Sectional view of section line AA in the middle;

[0017] Figure 4 A second-view structural schematic diagram of the oxygen supply device in the oxygen pressure monitoring and indicator for the oxygen supply system for crew members provided in the embodiments of this application;

[0018] Figure 5 For along Figure 4 Sectional view of the BB section line;

[0019] Figure 6 A schematic diagram of the oxygen inlet connector in an oxygen pressure monitoring and indicator for a crew oxygen supply system provided in this application embodiment;

[0020] Figure 7 For along Figure 6 A sectional view of the CC section line;

[0021] Figure 8 A first-view structural schematic diagram of the display device in an oxygen pressure monitoring and display device for a crew oxygen supply system provided in an embodiment of this application;

[0022] Figure 9 For along Figure 8 A sectional view of the DD section line in the middle;

[0023] Figure 10 A second-view structural schematic diagram of the display device in an oxygen pressure monitoring indicator for a crew oxygen supply system provided in this application embodiment;

[0024] Figure 11 For along Figure 10 A sectional view of the EE section line;

[0025] Figure 12 For along Figure 10 A cross-sectional view of the FF section line.

[0026] In the diagram: 100, oxygen supply device; 101, outer casing; 102, oxygen inlet connector; 103, oxygen supply connector; 110, oxygen inlet channel; 120, oxygen outlet channel; 121, first oxygen supply channel; 122, second oxygen supply channel; 130, piston channel; 140, piston; 141, sealing ring; 150, plug; 160, reset diaphragm; 200, display device; 210, display cavity; 220, display diaphragm; 230, first pressure chamber; 240, second pressure chamber; 250, display base; 260, display cover; 270, pressure ring; 280, first connecting hole; 290, second connecting hole; 300, oxygen delivery device; 310, first connecting channel; 320, second connecting channel; 400, diverting diaphragm; 410, fixing ring; 420, spring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The features and performance of the oxygen pressure monitoring indicator for a crew oxygen supply system of this application are further described in detail below with reference to embodiments.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, this application provides an oxygen pressure monitoring and prompting device for an oxygen supply system for crew members, which includes an oxygen supply device 100, a display device 200, and an oxygen delivery device 300 connecting the oxygen supply device 100 and the display device 200.

[0036] Among them, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6and Figure 7 As shown, the oxygen supply device 100 includes a housing 101, a double-layered tower-shaped oxygen inlet connector 102 and an oxygen supply connector 103 disposed within the housing 101. The oxygen inlet connector 102 and the oxygen supply connector 103 are respectively provided with an oxygen inlet channel 110 for receiving oxygen and an oxygen outlet channel 120 for discharging oxygen. The housing 101 also has a piston channel 130 connecting the oxygen inlet channel 110 and the oxygen outlet channel 120. One end of the piston channel 130 is connected to the side wall of the housing 101. A piston 140 that can move along the piston channel 130 is disposed within the piston channel 130. One end of the piston 140 extends out of the piston channel 130. The inner wall of the piston channel 130 is provided with a feature to limit the piston 140 from disengaging. The piston passage 130 has a plug 150, the outer wall of the piston 140 is provided with a sealing ring 141, the outer shell 101 is provided with a first oxygen supply channel 121 and a second oxygen supply channel 122 respectively connected to the oxygen outlet channel 120, the oxygen outlet channel 120 is provided with a valve assembly located between the first oxygen supply channel 121 and the second oxygen supply channel 122, the valve assembly is used to cut off or connect the oxygen outlet channel 120 when the pressure in the oxygen inlet channel 110 reaches a preset value, the valve assembly includes a diverting diaphragm 400 movably provided in the oxygen outlet channel 120, a fixing ring 410 connecting the diverting diaphragm 400, and a spring 420 whose two ends are respectively connected to the fixing ring 410 and the inner wall of the oxygen outlet channel 120;

[0037] like Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the display device 200 includes a display base 250 and a display cover 260 made of transparent acrylic material that is snapped onto the top of the display base 250. The display base 250 and the display cover 260 enclose a display cavity 210. The display cavity 210 is provided with a display diaphragm 220 that displays different colors when subjected to pressure changes and a pressure ring 270 for fixing the edge of the display diaphragm 220. An annular reset diaphragm 160 is provided between the pressure ring 270 and the display diaphragm 220. The display diaphragm 220 divides the display cavity 210 into a first pressure cavity 230 and a second pressure cavity 240. The display base 250 is provided with a first connecting hole 280 that communicates with the first pressure cavity 230 and a second connecting hole 290 that communicates with the second pressure cavity 240. The display diaphragm 220 is coated with multiple layers of annular patterns of different colors so that it bulges to different degrees and displays the corresponding colors when subjected to different pressures.

[0038] The oxygen delivery device 300 is provided with a first connecting channel 310 connecting the first connecting hole 280 and the first oxygen supply channel 121, and a second connecting channel 320 connecting the second connecting hole 290 and the second oxygen supply channel 122. When the pressure in the oxygen inlet channel 110 changes, the piston 140 moves sequentially along the piston channel 130 between the first station, the second station, and the third station. When the piston 140 moves between the first station and the second station, the oxygen inlet channel 110 and the first oxygen supply channel 121 are connected. When the piston 140 moves between the second station and the third station, the oxygen inlet channel 110, the first oxygen supply channel 121, the second oxygen supply channel 122, and the oxygen outlet channel 120 are connected.

[0039] The working principle of the oxygen pressure monitoring and indicator for the crew oxygen supply system provided in this application embodiment is as follows: the oxygen inlet connector 102 and the oxygen supply connector 103 of the oxygen supply device 100 are respectively connected to the aircraft's oxygen inlet interface and the crew oxygen supply system, so that oxygen is introduced from the aircraft's oxygen inlet interface into the oxygen inlet channel 110 of the oxygen inlet connector 102 and into the crew oxygen supply system through the oxygen outlet channel 120 of the oxygen supply connector 103. When the oxygen pressure introduced into the oxygen inlet channel 110 of the aircraft's oxygen inlet interface increases, it pushes the piston 140 to move from the first position to the second position along the piston channel 130. At this time, the oxygen pressure in the oxygen inlet channel 110 and the oxygen outlet channel 120 increases. The first connecting channel 310 of the part is connected, and oxygen is introduced into the first pressure chamber 230 through the oxygen inlet channel 110, piston channel 130, first oxygen supply channel 121, first connecting channel 310, and first connecting hole 280. This increases the pressure on the lower surface of the display diaphragm 220 in the display chamber 210. The display diaphragm 220 bulges upward and pushes open the reset diaphragm 160 to display a ring-shaped pattern. As the oxygen pressure entering the oxygen inlet channel 110 of the aircraft's oxygen inlet continuously increases, the ring-shaped pattern displayed by the upward bulging of the display diaphragm 220 continuously changes. By observing the color displayed by the display diaphragm 220, the range of oxygen pressure entering the aircraft's oxygen inlet can be determined.

[0040] When the oxygen pressure entering the aircraft's oxygen inlet reaches a preset value, it pushes piston 140 to move along piston channel 130 from the second position to the third position. At this time, oxygen enters oxygen inlet channel 110 and pushes the diaphragm 400 in oxygen outlet channel 120 against the pressure of spring 420, causing the diaphragm 400 to stop cutting off oxygen outlet channel 120. Thus, oxygen entering oxygen inlet channel 110 is output to the crew oxygen supply system via piston channel 130 and oxygen outlet channel 120 for crew use. At this time, oxygen flows through oxygen inlet channel 110, piston channel 130, first oxygen supply channel 121, first connecting channel 310, and the third... While a connection hole 280 is inserted into the first pressure chamber 230, some oxygen is introduced into the second pressure chamber 240 through the second oxygen supply channel 122, the second connection channel 320, and the second connection hole 290. This causes the upper and lower surfaces of the display diaphragm 220 to be subjected to oxygen pressure simultaneously. At this time, the display diaphragm 220 resets downwards and stops pushing open the reset diaphragm 160. The user can judge the oxygen pressure range of the oxygen inlet of the aircraft into the oxygen inlet channel 110 by the ring-shaped color pattern displayed on the display diaphragm 220. This makes it convenient for the user to judge the oxygen pressure range of the oxygen inlet of the aircraft into the oxygen inlet channel 110 by the ring-shaped color pattern displayed on the display diaphragm 220.

[0041] When the oxygen supply system for the crew is shut down, a negative pressure is formed inside the oxygen supply device 100, causing the piston 140 to move in the reverse direction from the third position to the first position along the piston channel 130, cutting off the oxygen inlet channel 110 and the oxygen outlet channel 120, and stopping the output of oxygen to the oxygen supply system for the crew.

[0042] In addition, when the oxygen pressure entering the oxygen inlet channel 110 of the aircraft decreases, the user can hold the piston 140 extending out of the piston channel 130 and manually control the piston 140 to move from the first position to the third position, so as to increase the amount of oxygen entering the oxygen outlet channel 120 from the oxygen inlet channel 110 for continued use by the user.

[0043] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. An oxygen pressure monitoring and indicator for a generator crew oxygen supply system, characterized in that, It includes an oxygen supply device, a display device, and an oxygen delivery device. The oxygen supply device has an oxygen inlet channel, an oxygen outlet channel, a piston channel connecting the oxygen inlet channel and the oxygen outlet channel, and a piston disposed within the piston channel. The oxygen outlet channel is equipped with a valve assembly that cuts off or connects the valve when the pressure reaches a preset value. The display device has a display cavity and a display diaphragm that divides the display cavity into a first pressure cavity and a second pressure cavity. The display diaphragm can display different colors for viewing when subjected to pressure changes. The oxygen delivery device has a first connecting channel connecting the oxygen outlet channel and the first pressure cavity, and a connecting channel connecting the oxygen outlet channel and the first pressure cavity. The second pressure chamber has a second connecting channel, and the valve assembly is located between the first connecting channel and the second connecting channel; when the pressure in the oxygen inlet channel changes, the display diaphragm displays different colors; when the pressure in the oxygen inlet channel changes, the piston moves along the piston channel between the first station, the second station, and the third station; when the piston moves between the first station and the second station, the oxygen inlet channel and the first connecting channel are connected; when the piston moves between the second station and the third station, the oxygen inlet channel, the oxygen outlet channel, the first connecting channel, and the second connecting channel are connected.

2. The oxygen pressure monitoring and indicator for a generator crew oxygen supply system according to claim 1, characterized in that, The valve assembly includes a diversion diaphragm movably disposed within the oxygen outlet channel, a fixing ring connecting the diversion diaphragm, and springs at both ends respectively connected to the fixing ring and the inner wall of the oxygen outlet channel.

3. The oxygen pressure monitoring and indicator for a generator crew oxygen supply system according to claim 1, characterized in that, One end of the piston channel is connected to the outer wall of the oxygen supply device, one end of the piston extends out of the piston channel, and the inner wall of the piston channel is provided with a plug for preventing the piston from disengaging from the piston channel.

4. The oxygen pressure monitoring and indicator for a generator crew oxygen supply system according to claim 1, characterized in that, The display device includes a display base and a display cover made of transparent material that is detachably connected to the top of the display base. The display base and the display cover together form the display cavity. The display base is provided with a first connecting hole that connects the first pressure cavity and the first connecting channel, and a second connecting hole that connects the second pressure cavity and the second connecting channel.

5. The oxygen pressure monitoring and indicator for a generator crew oxygen supply system according to claim 4, characterized in that, The display cavity is provided with a pressure ring for fixing the display film.

6. The oxygen pressure monitoring and indicator for a generator crew oxygen supply system according to claim 5, characterized in that, A reset diaphragm is provided between the pressure ring and the display diaphragm.

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